diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/cairo_bindings.c | 529 | ||||
-rw-r--r-- | src/cairo_bindings.h | 59 | ||||
-rw-r--r-- | src/common.h | 265 | ||||
-rw-r--r-- | src/gl/glad/glad.c (renamed from src/glad/glad.c) | 0 | ||||
-rw-r--r-- | src/gl/glad/glad.h (renamed from src/glad/glad.h) | 0 | ||||
-rw-r--r-- | src/gl/glad/khrplatform.h (renamed from src/glad/khrplatform.h) | 0 | ||||
-rw-r--r-- | src/gl/honey_gl.c | 10 | ||||
-rw-r--r-- | src/gl/honey_gl.h | 18 | ||||
-rw-r--r-- | src/gl/honey_gl.test.c | 17 | ||||
-rw-r--r-- | src/glm_bindings.c | 451 | ||||
-rw-r--r-- | src/glm_bindings.h | 219 | ||||
-rw-r--r-- | src/glm_mat3_bindings.c | 200 | ||||
-rw-r--r-- | src/glm_mat4_bindings.c | 541 | ||||
-rw-r--r-- | src/glm_vec3_bindings.c | 420 | ||||
-rw-r--r-- | src/glm_vec4_bindings.c | 346 | ||||
-rw-r--r-- | src/honey.c | 253 | ||||
-rw-r--r-- | src/honey.h | 77 | ||||
-rw-r--r-- | src/honey_lua.c | 634 | ||||
-rw-r--r-- | src/input.c | 1339 | ||||
-rw-r--r-- | src/input.h | 229 | ||||
-rw-r--r-- | src/logging/logging.test.c (renamed from src/test/logging/logging_tests.c) | 0 | ||||
-rw-r--r-- | src/main.c | 22 | ||||
-rw-r--r-- | src/mesh.c | 445 | ||||
-rw-r--r-- | src/mesh.h | 61 | ||||
-rw-r--r-- | src/primitives.c | 226 | ||||
-rw-r--r-- | src/primitives.h | 62 | ||||
-rw-r--r-- | src/shader.c | 276 | ||||
-rw-r--r-- | src/shader.h | 103 | ||||
-rw-r--r-- | src/stb_image/stb_image.c | 3 | ||||
-rw-r--r-- | src/stb_image/stb_image.h | 7656 | ||||
-rw-r--r-- | src/test/minunit.h | 2 | ||||
-rw-r--r-- | src/test/mock/mock_GLFW.c | 39 | ||||
-rw-r--r-- | src/test/mock/mock_GLFW.h | 9 | ||||
-rw-r--r-- | src/test/mock_queue.test.c (renamed from src/test/mock_queue_tests.c) | 0 | ||||
-rw-r--r-- | src/test/suites.h | 4 | ||||
-rw-r--r-- | src/texture.c | 458 | ||||
-rw-r--r-- | src/texture.h | 125 | ||||
-rw-r--r-- | src/window.c | 275 | ||||
-rw-r--r-- | src/window.h | 86 |
39 files changed, 102 insertions, 15357 deletions
diff --git a/src/cairo_bindings.c b/src/cairo_bindings.c deleted file mode 100644 index 3a4893b..0000000 --- a/src/cairo_bindings.c +++ /dev/null @@ -1,529 +0,0 @@ -#include "cairo_bindings.h" -#include "texture.h" - -int honey_cairo_mt_ref = LUA_NOREF; - -static const cairo_user_data_key_t TEXTURE_KEY; - -int honey_setup_cairo(lua_State* L) -{ - honey_lua_create_table - (L, 2, - HONEY_TABLE, "__index", 18, - HONEY_FUNCTION, "getTexture", honey_cairo_get_texture, - HONEY_FUNCTION, "updateTexture", honey_cairo_update_texture, - - /* config functions */ - HONEY_FUNCTION, "save", honey_cairo_save, - HONEY_FUNCTION, "restore", honey_cairo_restore, - HONEY_FUNCTION, "setOperator", honey_cairo_set_operator, - HONEY_FUNCTION, "getOperator", honey_cairo_get_operator, - HONEY_FUNCTION, "setAntialias", honey_cairo_set_antialias, - HONEY_FUNCTION, "getAntialias", honey_cairo_get_antialias, - HONEY_FUNCTION, "setColor", honey_cairo_set_color, - HONEY_FUNCTION, "setLinecap", honey_cairo_set_linecap, - HONEY_FUNCTION, "getLinecap", honey_cairo_get_linecap, - HONEY_FUNCTION, "setLineWidth", honey_cairo_set_line_width, - - /* drawing functions */ - HONEY_FUNCTION, "moveTo", honey_cairo_move_to, - HONEY_FUNCTION, "lineTo", honey_cairo_line_to, - HONEY_FUNCTION, "curveTo", honey_cairo_curve_to, - HONEY_FUNCTION, "arc", honey_cairo_arc, - HONEY_FUNCTION, "stroke", honey_cairo_stroke, - HONEY_FUNCTION, "fill", honey_cairo_fill, - - HONEY_FUNCTION, "__gc", honey_cairo_destroy); - honey_cairo_mt_ref = luaL_ref(L, LUA_REGISTRYINDEX); - - lua_pushcfunction(L, honey_cairo_new); - lua_setfield(L, -2, "cairo"); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -struct texture_ref { - int ref; - lua_State* L; -}; - -static void destroy_texture_ref(void* data) -{ - struct texture_ref* ref = data; - luaL_unref(ref->L, LUA_REGISTRYINDEX, ref->ref); - free(ref); -} - -int honey_cairo_new(lua_State* L) -{ - int choice = honey_lua_parse_arguments(L, 2, 0, 1, HONEY_TABLE, NULL); - - lua_pushcfunction(L, honey_lua_texture_new); - if (choice == 0) - honey_lua_pcall(L, 0, 1); - else { - lua_pushvalue(L, 1); - honey_lua_pcall(L, 1, 1); - } - - /* configure texture swizzling ARGB -> RGBA */ - honey_texture* texture = lua_touserdata(L, -1); - glBindTexture(GL_TEXTURE_2D, texture->id); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_R, GL_BLUE); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_B, GL_RED); - //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_A, GL_RED); - - /* setup texture reference */ - struct texture_ref* ref = malloc(sizeof(struct texture_ref)); - if (ref == NULL) - honey_lua_throw_error - (L, "failed to allocate memory for texture handle!"); - - ref->ref = luaL_ref(L, LUA_REGISTRYINDEX); - ref->L = L; - - /* create cairo surface */ - cairo_surface_t* surface = - cairo_image_surface_create(CAIRO_FORMAT_ARGB32, - texture->params.width, - texture->params.height); - - cairo_status_t status = cairo_surface_status(surface); - if (status != CAIRO_STATUS_SUCCESS) - honey_lua_throw_error - (L, "error creating cairo surface: %s", cairo_status_to_string(status)); - - /* create cairo context */ - cairo_t** cr = lua_newuserdata(L, sizeof(cairo_t*)); - *cr = cairo_create(surface); - status = cairo_status(*cr); - if (status != CAIRO_STATUS_SUCCESS) - honey_lua_throw_error - (L, "error creating cairo context: %s", cairo_status_to_string(status)); - - cairo_surface_destroy(surface); - - /* bind texture ref to context userdata */ - status = cairo_set_user_data(*cr, - &TEXTURE_KEY, - ref, - destroy_texture_ref); - if (status != CAIRO_STATUS_SUCCESS) - honey_lua_throw_error - (L, "error binding cairo texture: %s", cairo_status_to_string(status)); - - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_cairo_mt_ref); - lua_setmetatable(L, -2); - - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_cairo_update_texture(lua_State* L) -{ - cairo_t** cr; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &cr); - - struct texture_ref *ref = cairo_get_user_data(*cr, &TEXTURE_KEY); - lua_rawgeti(L, LUA_REGISTRYINDEX, ref->ref); - honey_texture* texture = lua_touserdata(L, -1); - lua_pop(L, 1); - - cairo_surface_t* surface = cairo_get_target(*cr); - - glBindTexture(GL_TEXTURE_2D, texture->id); - unsigned char* image_data = cairo_image_surface_get_data(surface); - glTexSubImage2D(GL_TEXTURE_2D, - 0, 0, 0, - texture->params.width, - texture->params.height, - GL_RGBA, - GL_UNSIGNED_BYTE, - image_data); - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_cairo_get_texture(lua_State* L) -{ - cairo_t** cr; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &cr); - - struct texture_ref *ref = cairo_get_user_data(*cr, &TEXTURE_KEY); - lua_rawgeti(L, LUA_REGISTRYINDEX, ref->ref); - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_cairo_destroy(lua_State* L) -{ - cairo_t** cr; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &cr); - - struct texture_ref* ref = cairo_get_user_data(*cr, &TEXTURE_KEY); - - cairo_destroy(*cr); - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Context config functions - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -int honey_cairo_set_operator(lua_State* L) -{ - cairo_t** cr; - char* op_string; - honey_lua_parse_arguments(L, 1, 2, HONEY_USERDATA, &cr, HONEY_STRING, &op_string); - - cairo_operator_t op; - - bool ok = honey_string_to_enum - (&op, op_string, 29, - "clear", CAIRO_OPERATOR_CLEAR, - "source", CAIRO_OPERATOR_SOURCE, - "over", CAIRO_OPERATOR_OVER, - "in", CAIRO_OPERATOR_IN, - "out", CAIRO_OPERATOR_OUT, - "atop", CAIRO_OPERATOR_ATOP, - "dest", CAIRO_OPERATOR_DEST, - "dest-over", CAIRO_OPERATOR_DEST_OVER, - "dest-in", CAIRO_OPERATOR_DEST_IN, - "dest-out", CAIRO_OPERATOR_DEST_OUT, - "dest-atop", CAIRO_OPERATOR_DEST_ATOP, - "xor", CAIRO_OPERATOR_XOR, - "add", CAIRO_OPERATOR_ADD, - "saturate", CAIRO_OPERATOR_SATURATE, - "multiply", CAIRO_OPERATOR_MULTIPLY, - "screen", CAIRO_OPERATOR_SCREEN, - "overlay", CAIRO_OPERATOR_OVERLAY, - "darken", CAIRO_OPERATOR_DARKEN, - "lighten", CAIRO_OPERATOR_LIGHTEN, - "color-dodge", CAIRO_OPERATOR_COLOR_DODGE, - "color-burn", CAIRO_OPERATOR_COLOR_BURN, - "hard-light", CAIRO_OPERATOR_HARD_LIGHT, - "soft-light", CAIRO_OPERATOR_SOFT_LIGHT, - "difference", CAIRO_OPERATOR_DIFFERENCE, - "exclusion", CAIRO_OPERATOR_EXCLUSION, - "hsl-hue", CAIRO_OPERATOR_HSL_HUE, - "hsl-saturation", CAIRO_OPERATOR_HSL_SATURATION, - "hsl-color", CAIRO_OPERATOR_HSL_COLOR, - "hsl-luminosity", CAIRO_OPERATOR_HSL_LUMINOSITY); - - - if (!ok) - honey_lua_throw_error(L, "unknown cairo operator '%s'", op_string); - - cairo_set_operator(*cr, op); - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_cairo_get_operator(lua_State* L) -{ - cairo_t** cr; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &cr); - - cairo_operator_t op = cairo_get_operator(*cr); - char* string; - bool ok = honey_enum_to_string - (&string, op, 29, - "clear", CAIRO_OPERATOR_CLEAR, - "source", CAIRO_OPERATOR_SOURCE, - "over", CAIRO_OPERATOR_OVER, - "in", CAIRO_OPERATOR_IN, - "out", CAIRO_OPERATOR_OUT, - "atop", CAIRO_OPERATOR_ATOP, - "dest", CAIRO_OPERATOR_DEST, - "dest-over", CAIRO_OPERATOR_DEST_OVER, - "dest-in", CAIRO_OPERATOR_DEST_IN, - "dest-out", CAIRO_OPERATOR_DEST_OUT, - "dest-atop", CAIRO_OPERATOR_DEST_ATOP, - "xor", CAIRO_OPERATOR_XOR, - "add", CAIRO_OPERATOR_ADD, - "saturate", CAIRO_OPERATOR_SATURATE, - "multiply", CAIRO_OPERATOR_MULTIPLY, - "screen", CAIRO_OPERATOR_SCREEN, - "overlay", CAIRO_OPERATOR_OVERLAY, - "darken", CAIRO_OPERATOR_DARKEN, - "lighten", CAIRO_OPERATOR_LIGHTEN, - "color-dodge", CAIRO_OPERATOR_COLOR_DODGE, - "color-burn", CAIRO_OPERATOR_COLOR_BURN, - "hard-light", CAIRO_OPERATOR_HARD_LIGHT, - "soft-light", CAIRO_OPERATOR_SOFT_LIGHT, - "difference", CAIRO_OPERATOR_DIFFERENCE, - "exclusion", CAIRO_OPERATOR_EXCLUSION, - "hsl-hue", CAIRO_OPERATOR_HSL_HUE, - "hsl-saturation", CAIRO_OPERATOR_HSL_SATURATION, - "hsl-color", CAIRO_OPERATOR_HSL_COLOR, - "hsl-luminosity", CAIRO_OPERATOR_HSL_LUMINOSITY); - - if (!ok) - honey_lua_throw_error(L, "unknown operator '%d'", op); - - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_cairo_set_antialias(lua_State* L) -{ - cairo_t** cr; - char* aa_string; - honey_lua_parse_arguments(L, 1, 2, HONEY_USERDATA, &cr, HONEY_STRING, &aa_string); - - cairo_antialias_t aa; - - bool noerror = honey_string_to_enum - (&aa, aa_string, 7, - "default", CAIRO_ANTIALIAS_DEFAULT, - "none", CAIRO_ANTIALIAS_NONE, - "gray", CAIRO_ANTIALIAS_GRAY, - "subpixel", CAIRO_ANTIALIAS_SUBPIXEL, - "fast", CAIRO_ANTIALIAS_FAST, - "good", CAIRO_ANTIALIAS_GOOD, - "best", CAIRO_ANTIALIAS_BEST); - - if (!noerror) - honey_lua_throw_error(L, "unknown antialias type '%s'", aa_string); - - cairo_set_antialias(*cr, aa); - - return 0; - -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_cairo_get_antialias(lua_State* L) -{ - cairo_t** cr; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &cr); - - cairo_antialias_t aa = cairo_get_antialias(*cr); - char* string; - - bool noerror = honey_enum_to_string - (&string, aa, 7, - "default", CAIRO_ANTIALIAS_DEFAULT, - "none", CAIRO_ANTIALIAS_NONE, - "gray", CAIRO_ANTIALIAS_GRAY, - "subpixel", CAIRO_ANTIALIAS_SUBPIXEL, - "fast", CAIRO_ANTIALIAS_FAST, - "good", CAIRO_ANTIALIAS_GOOD, - "best", CAIRO_ANTIALIAS_BEST); - - if (!noerror) - honey_lua_throw_error(L, "unknown antialias type '%d'", aa); - - lua_pushstring(L, string); - - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_cairo_save(lua_State* L) -{ - cairo_t** cr; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &cr); - - cairo_save(*cr); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_cairo_restore(lua_State* L) -{ - cairo_t** cr; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &cr); - - cairo_restore(*cr); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_cairo_set_linecap(lua_State* L) -{ - cairo_t** cr; - char* cap_string; - honey_lua_parse_arguments(L, 1, 2, HONEY_USERDATA, &cr, HONEY_STRING, &cap_string); - - cairo_line_cap_t cap; - - bool ok = honey_string_to_enum - (&cap, cap_string, 3, - "butt", CAIRO_LINE_CAP_BUTT, - "round", CAIRO_LINE_CAP_ROUND, - "square", CAIRO_LINE_CAP_SQUARE); - - if (!ok) - honey_lua_throw_error(L, "unknown linecap type '%s'", cap_string); - - cairo_set_line_cap(*cr, cap); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_cairo_get_linecap(lua_State* L) -{ - cairo_t** cr; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &cr); - - cairo_line_cap_t cap = cairo_get_line_cap(*cr); - char* cap_string; - - bool ok = honey_enum_to_string - (&cap_string, cap, 3, - "butt", CAIRO_LINE_CAP_BUTT, - "round", CAIRO_LINE_CAP_ROUND, - "square", CAIRO_LINE_CAP_SQUARE); - - if (!ok) - honey_lua_throw_error(L, "unknown linecap type '%d'", cap); - - lua_pushstring(L, cap_string); - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Drawing functions - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -int honey_cairo_move_to(lua_State* L) -{ - cairo_t** cr; - float x, y; - honey_lua_parse_arguments - (L, 1, 3, HONEY_USERDATA, &cr, HONEY_NUMBER, &x, HONEY_NUMBER, &y); - - cairo_move_to(*cr, x, y); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_cairo_line_to(lua_State* L) -{ - cairo_t** cr; - float x, y; - honey_lua_parse_arguments - (L, 1, 3, HONEY_USERDATA, &cr, HONEY_NUMBER, &x, HONEY_NUMBER, &y); - - cairo_line_to(*cr, x, y); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_cairo_curve_to(lua_State* L) -{ - cairo_t** cr; - float x1, y1, x2, y2, x3, y3; - honey_lua_parse_arguments - (L, 1, 7, HONEY_USERDATA, &cr, - HONEY_NUMBER, x1, HONEY_NUMBER, y1, - HONEY_NUMBER, x2, HONEY_NUMBER, y2, - HONEY_NUMBER, x3, HONEY_NUMBER, y3); - - cairo_curve_to(*cr, x1, y1, x2, y2, x3, y3); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_cairo_arc(lua_State* L) -{ - cairo_t** cr; - float cx, cy, radius, angle1, angle2; - int choice = honey_lua_parse_arguments - (L, 2, - 4, - HONEY_USERDATA, &cr, - HONEY_NUMBER, &cx, HONEY_NUMBER, &cy, HONEY_NUMBER, &radius, - 6, - HONEY_USERDATA, &cr, - HONEY_NUMBER, &cx, HONEY_NUMBER, &cy, HONEY_NUMBER, &radius, - HONEY_NUMBER, &angle1, HONEY_NUMBER, &angle2); - - if (choice == 0) { - angle1 = 0; - angle2 = 6.2831; - } - - cairo_arc(*cr, cx, cy, radius, angle1, angle2); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_cairo_stroke(lua_State* L) -{ - cairo_t** cr; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &cr); - - cairo_stroke(*cr); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_cairo_fill(lua_State* L) -{ - cairo_t** cr; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &cr); - - cairo_fill(*cr); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_cairo_set_color(lua_State* L) -{ - cairo_t** cr; - float r, g, b, a; - int choice = honey_lua_parse_arguments - (L, 2, - 4, - HONEY_USERDATA, &cr, - HONEY_NUMBER, &r, HONEY_NUMBER, &g, HONEY_NUMBER, &b, - 5, - HONEY_USERDATA, &cr, - HONEY_NUMBER, &r, HONEY_NUMBER, &g, HONEY_NUMBER, &b, HONEY_NUMBER, &a); - - if (choice == 0) - cairo_set_source_rgb(*cr, r, g, b); - else - cairo_set_source_rgba(*cr, r, g, b, a); - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_cairo_set_line_width(lua_State* L) -{ - cairo_t** cr; - float width; - honey_lua_parse_arguments(L, 1, 2, HONEY_USERDATA, &cr, HONEY_NUMBER, &width); - - cairo_set_line_width(*cr, width); - return 0; -} - diff --git a/src/cairo_bindings.h b/src/cairo_bindings.h deleted file mode 100644 index 8f23bb6..0000000 --- a/src/cairo_bindings.h +++ /dev/null @@ -1,59 +0,0 @@ -#ifndef HONEY_CAIRO_H -#define HONEY_CAIRO_H - -#include "common.h" - -/* @file cairo_bindings.h - * @brief Define some binding functions for creating and manipulating cairo surfaces, - * as well as enabling turning them into OpenGL textures. - */ - -extern int honey_cairo_mt_ref; - -int honey_setup_cairo(lua_State* L); - -int honey_cairo_new(lua_State* L); - -int honey_cairo_update_texture(lua_State* L); - -int honey_cairo_get_texture(lua_State* L); - -int honey_cairo_destroy(lua_State* L); - -/* context config functions */ - -int honey_cairo_save(lua_State* L); - -int honey_cairo_restore(lua_State* L); - -int honey_cairo_set_operator(lua_State* L); - -int honey_cairo_get_operator(lua_State* L); - -int honey_cairo_set_antialias(lua_State* L); - -int honey_cairo_get_antialias(lua_State* L); - -int honey_cairo_set_color(lua_State* L); - -int honey_cairo_set_line_width(lua_State* L); - -int honey_cairo_set_linecap(lua_State* L); - -int honey_cairo_get_linecap(lua_State* L); - -/* drawing functions */ - -int honey_cairo_move_to(lua_State* L); - -int honey_cairo_line_to(lua_State* L); - -int honey_cairo_curve_to(lua_State* L); - -int honey_cairo_arc(lua_State* L); - -int honey_cairo_stroke(lua_State* L); - -int honey_cairo_fill(lua_State* L); - -#endif diff --git a/src/common.h b/src/common.h deleted file mode 100644 index 57a9de2..0000000 --- a/src/common.h +++ /dev/null @@ -1,265 +0,0 @@ -/** @file */ - -#ifndef HONEY_COMMON_H -#define HONEY_COMMON_H - -// standard c libraries -#include <stdio.h> -#include <stdlib.h> -#include <stdbool.h> -#include <string.h> - -// POSIX options -#include <unistd.h> - -// lua interpreter -#include <lua.h> -#include <lualib.h> -#include <lauxlib.h> - -// glad -#include "glad/glad.h" -#include <GLFW/glfw3.h> - -// c opengl mathematics function -#define CGLM_ALL_UNALIGNED -#include <cglm/cglm.h> -#include <cglm/call.h> - -// assimp -#include <assimp/cimport.h> -#include <assimp/scene.h> -#include <assimp/postprocess.h> - -// stb image -#include "stb_image/stb_image.h" - -// cairo -#include <cairo/cairo.h> - -typedef GLFWwindow* honey_window; - -typedef struct { - honey_window window; - int width; - int height; - bool fullscreen; -} honey_window_information; - -extern int honey_window_info_ref; -extern int honey_window_resize_callback_ref; -extern int honey_window_resize_callback_data_ref; -extern int honey_window_focus_callback_ref; -extern int honey_window_focus_callback_data_ref; - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -typedef enum { - /* generic results */ - HONEY_OK, - HONEY_MEMORY_ALLOCATION_ERROR, - HONEY_FILE_READ_ERROR, - - /* shader errors */ - HONEY_VERTEX_SHADER_COMPILATION_ERROR, - HONEY_FRAGMENT_SHADER_COMPILATION_ERROR, - HONEY_SHADER_LINK_ERROR, - - /* mesh errors */ - HONEY_MESH_BAD_VERTEX_DATA, - HONEY_MESH_BAD_INDEX_DATA, - - /* model errors */ - HONEY_MODEL_LOAD_ERROR, - - HONEY_N_ERRORS -} honey_result; - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -typedef enum { VEC3, - VEC4, - MAT3, - MAT4 -} honey_glm_array_type; - -typedef struct { - honey_glm_array_type type; - unsigned int size; - float* data; -} honey_glm_array; - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -honey_result honey_format_string(char** string, - char* format_string, - ...); - -/** @brief Throw an error with a string generated by a printf format string. - * - * This function attempts to create a string from the given format string; - * if an error should occur, it will instead throw a lua error with the appropriate - * message. - * - * @param[in] L The Lua state to throw an error from. - * @param[in] format_string The format string used to generate the error message. - * @param[in] ... The arguments for the format string. - * - * @returns Nothing. - */ -void honey_lua_throw_error(lua_State* L, - char* format_string, - ...); - -/* lua binding functions */ - -typedef enum { - HONEY_BOOLEAN, - HONEY_INTEGER, - HONEY_NUMBER, - HONEY_STRING, - HONEY_FUNCTION, - HONEY_TABLE, - HONEY_NIL, - HONEY_USERDATA, - HONEY_LIGHTUSERDATA, - HONEY_ANY -} honey_lua_type; - -/** @brief Get arguments from a function, checking to ensure the types match. - * - * Each argument type should be specified as [# of args], type, ptr, type, ptr..., - * e.g. - * ``` - * honey_lua_parse_arguments(L, 3, - * // option 0 - * 2, HONEY_INTEGER, &a, HONEY_INTEGER, &b, - * // option 1 - * 1, HONEY_INTEGER, &a, - * // option 2 - * 0); - * ``` - * - * Note that this function will check for correct types of HONEY_TABLE, HONEY_NIL, and - * HONEY_FUNCTION, but does not expect a pointer to them. It performs no check for - * HONEY_ANY, and also does not expect a pointer. - * - * @param[in] L The lua state to parse arguments from. - * @param[in] n The number of argument options to parse. - * @param[in] ... Variadic list of argument options. - * - * @returns The zero-indexed index of the actual argument option used. Throws an - * error if no options matched the provided arguments. - */ -int honey_lua_parse_arguments(lua_State* L, unsigned int n, ...); - -/** @brief Process a param table. - * - * Please ensure that the param table is on top of the stack before calling this function. - * - * The first m elements of the param table are required, and their absence from - * the table will trigger an error. - * - * The variadic portion of this function expects arguments as - * type_1, param_name_1, function1, (void*) data1, type_2, param_name_2, function_2, (void*) data_2, ... - * - * Each function should be of the form void (*)(lua_State*, void*), and should - * not return with a modified stack. - * - * @param[in] L The lua state to parse the table from. - * @param[in] n The number of params to parse. - * @param[in] m The number of required params. - * @param[inout] ... Variadic list of param processing functions, as described above. - * - * @returns Nothing, but throws a lua error if a required argument is not found. - */ -void honey_lua_parse_params(lua_State* L, int n, int m, ...); - -/** @brief Wrap C objects for lua. */ -typedef struct honey_lua_element { - char* name; - honey_lua_type type; - union { - int integer; - double number; - char* string; - int (*function)(lua_State*); - struct { - int n_elements; - struct honey_lua_element* elements; - } table; - void* pointer; - } data; -} honey_lua_element; - -/** @brief Push an element to the lua stack. - * - * @param[in] L The lua state to push the element to. - * @param[in] element The honey_lua_element to push to the stack. - * - * @returns Nothing. - */ -void honey_lua_push_element(lua_State* L, - honey_lua_element element); - -/** @brief Get an enum value from a string. - * - * This function expects the variadic arguments of the form STR1, VAL1, STR2, VAL2, ... - * - * @param[out] k The result of the conversion. - * @param[in] string The string to check. - * @param[in] n The number of variadic pairs provided. - * @param[in] ... Variadic arguments as described above. - * - * @returns true if the string parsed successfully; false otherwise. - */ -bool honey_string_to_enum(int* k, char* string, int n, ...); - -/** @brief Get an enum value from a string. - * - * This function expects the variadic arguments of the form STR1, VAL1, STR2, VAL2, ... - * - * @param[in] string The resulting string. - * @param[out] k The integer to check. - * @param[in] n The number of variadic pairs provided. - * @param[in] ... Variadic arguments as described above. - * - * @returns true if the integer parsed successfully; false otherwise. - */ -bool honey_enum_to_string(char** string, int k, int n, ...); - -/** @brief Create and populate a lua table. - * - * This function expects a list of the form `type, name, element, type, name, element...`. - * In the case of a sub-table, the format is - * `type, name, n_elements, subtype, subname, subelement...`. - * This can be nested as deeply as one wishes. - * - * As userdata cannot be pushed from C, attempting to push HONEY_USERDATA will result in - * an error. - * - * @param[in] L The lua state to push the table to. - * @param[in] n_elements The number of elements in the array. - * @param[in] ... Variadic list of table elements. - * - * @returns Nothing. - */ -void honey_lua_create_table(lua_State* L, - unsigned int n_elements, - ...); - -/** @brief Get the traceback for use after an error. - */ -int honey_lua_traceback(lua_State* L); - -/** @brief Wrapper for lua_pcall that uses a honey_lua_traceback as an error handler. - */ -int honey_lua_pcall(lua_State* L, int nargs, int nret); - -/** @brief Trigger honey to exit. - * - * @returns Nothing. - */ -int honey_exit(lua_State* L); - -#endif diff --git a/src/glad/glad.c b/src/gl/glad/glad.c index 260f1c0..260f1c0 100644 --- a/src/glad/glad.c +++ b/src/gl/glad/glad.c diff --git a/src/glad/glad.h b/src/gl/glad/glad.h index cde8703..cde8703 100644 --- a/src/glad/glad.h +++ b/src/gl/glad/glad.h diff --git a/src/glad/khrplatform.h b/src/gl/glad/khrplatform.h index 5b55ea2..5b55ea2 100644 --- a/src/glad/khrplatform.h +++ b/src/gl/glad/khrplatform.h diff --git a/src/gl/honey_gl.c b/src/gl/honey_gl.c new file mode 100644 index 0000000..bbb775f --- /dev/null +++ b/src/gl/honey_gl.c @@ -0,0 +1,10 @@ +#include <honeysuckle.h> +#include "logging/logging.h" +#include "gl/honey_gl.h" + +int honey_gl_window_ref = LUA_NOREF; + +bool honey_gl_setup() +{ + return false; +} diff --git a/src/gl/honey_gl.h b/src/gl/honey_gl.h new file mode 100644 index 0000000..fc57037 --- /dev/null +++ b/src/gl/honey_gl.h @@ -0,0 +1,18 @@ +#ifndef HONEY_GL_H +#define HONEY_GL_H + +#include <stdbool.h> + +#ifdef UNIT_TEST +#include "test/mock/mock_GLFW.h" +#else +#include "glad/glad.h" +#include <GLFW/glfw3.h> +#endif + +extern int honey_gl_window_ref; + +bool honey_gl_setup(); + + +#endif diff --git a/src/gl/honey_gl.test.c b/src/gl/honey_gl.test.c new file mode 100644 index 0000000..6a0ac9e --- /dev/null +++ b/src/gl/honey_gl.test.c @@ -0,0 +1,17 @@ +#include "test/minunit.h" +#include "test/mock_queue.h" + +#include "gl/honey_gl.h" + +mu_test honey_gl_do_setup(); + + +void honey_gl_tests() +{ + mu_run_test("setup OpenGL", honey_gl_do_setup); +} + + +mu_test honey_gl_do_setup() +{ +} diff --git a/src/glm_bindings.c b/src/glm_bindings.c deleted file mode 100644 index aa40fff..0000000 --- a/src/glm_bindings.c +++ /dev/null @@ -1,451 +0,0 @@ -#include "glm_bindings.h" - -int honey_glm_vec3_mt_ref = LUA_NOREF; -int honey_glm_vec4_mt_ref = LUA_NOREF; -int honey_glm_mat3_mt_ref = LUA_NOREF; -int honey_glm_mat4_mt_ref = LUA_NOREF; - -int honey_glm_UNIT_X_ref = LUA_NOREF; -int honey_glm_UNIT_Y_ref = LUA_NOREF; -int honey_glm_UNIT_Z_ref = LUA_NOREF; - -static void create_vec3(lua_State* L, - int x, int y, int z, - int* ref) -{ - lua_createtable(L, 3, 0); - - lua_pushnumber(L, x); - lua_rawseti(L, -2, 1); - - lua_pushnumber(L, y); - lua_rawseti(L, -2, 2); - - lua_pushnumber(L, z); - lua_rawseti(L, -2, 3); - - lua_pushcfunction(L, honey_glm_new_vec3); - lua_pushvalue(L, -2); - honey_lua_pcall(L, 1, 1); - - *ref = luaL_ref(L, LUA_REGISTRYINDEX); - lua_pop(L, 1); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -void honey_setup_glm(lua_State* L) -{ - /* vec3 metatable */ - honey_lua_create_table - (L, 3, - HONEY_TABLE, "__index", 24, - HONEY_FUNCTION, "get", honey_glm_array_vec_get, - HONEY_FUNCTION, "set", honey_glm_array_vec_set, - HONEY_FUNCTION, "copyTo", honey_glm_vec3_copy, - HONEY_FUNCTION, "zero", honey_glm_vec3_zero, - HONEY_FUNCTION, "eye", honey_glm_vec3_eye, - HONEY_FUNCTION, "dot", honey_glm_vec3_dot, - HONEY_FUNCTION, "cross", honey_glm_vec3_cross, - HONEY_FUNCTION, "crossn", honey_glm_vec3_crossn, - HONEY_FUNCTION, "norm2", honey_glm_vec3_norm2, - HONEY_FUNCTION, "norm", honey_glm_vec3_norm, - HONEY_FUNCTION, "add", honey_glm_vec3_add, - HONEY_FUNCTION, "adds", honey_glm_vec3_adds, - HONEY_FUNCTION, "sub", honey_glm_vec3_sub, - HONEY_FUNCTION, "subs", honey_glm_vec3_subs, - HONEY_FUNCTION, "mul", honey_glm_vec3_mul, - HONEY_FUNCTION, "muls", honey_glm_vec3_muls, - HONEY_FUNCTION, "scale", honey_glm_vec3_scale, - HONEY_FUNCTION, "scaleAs", honey_glm_vec3_scale_as, - HONEY_FUNCTION, "div", honey_glm_vec3_div, - HONEY_FUNCTION, "negate", honey_glm_vec3_negate, - HONEY_FUNCTION, "normalize", honey_glm_vec3_normalize, - HONEY_FUNCTION, "angleTo", honey_glm_vec3_angle, - HONEY_FUNCTION, "clamp", honey_glm_vec3_clamp, - HONEY_FUNCTION, "lerpTo", honey_glm_vec3_lerp, - - HONEY_FUNCTION, "__tostring", honey_glm_vector_to_string, - - HONEY_FUNCTION, "__gc", honey_glm_array_destroy); - honey_glm_vec3_mt_ref = luaL_ref(L, LUA_REGISTRYINDEX); - - - /* vec4 metatable */ - honey_lua_create_table - (L, 3, - HONEY_TABLE, "__index", 20, - HONEY_FUNCTION, "get", honey_glm_array_vec_get, - HONEY_FUNCTION, "set", honey_glm_array_vec_set, - HONEY_FUNCTION, "copyTo", honey_glm_vec4_copy, - HONEY_FUNCTION, "zero", honey_glm_vec4_zero, - HONEY_FUNCTION, "eye", honey_glm_vec4_eye, - HONEY_FUNCTION, "dot", honey_glm_vec4_dot, - HONEY_FUNCTION, "norm2", honey_glm_vec4_norm2, - HONEY_FUNCTION, "norm", honey_glm_vec4_norm, - HONEY_FUNCTION, "add", honey_glm_vec4_add, - HONEY_FUNCTION, "adds", honey_glm_vec4_adds, - HONEY_FUNCTION, "sub", honey_glm_vec4_sub, - HONEY_FUNCTION, "subs", honey_glm_vec4_subs, - HONEY_FUNCTION, "mul", honey_glm_vec4_mul, - HONEY_FUNCTION, "scale", honey_glm_vec4_scale, - HONEY_FUNCTION, "scaleAs", honey_glm_vec4_scale_as, - HONEY_FUNCTION, "div", honey_glm_vec4_div, - HONEY_FUNCTION, "negate", honey_glm_vec4_negate, - HONEY_FUNCTION, "normalize", honey_glm_vec4_normalize, - HONEY_FUNCTION, "clamp", honey_glm_vec4_clamp, - HONEY_FUNCTION, "lerpTo", honey_glm_vec4_lerp, - - HONEY_FUNCTION, "__tostring", honey_glm_vector_to_string, - - HONEY_FUNCTION, "__gc", honey_glm_array_destroy); - honey_glm_vec4_mt_ref = luaL_ref(L, LUA_REGISTRYINDEX); - - /* mat3 metatable */ - honey_lua_create_table - (L, 3, - - HONEY_TABLE, "__index", 11, - HONEY_FUNCTION, "get", honey_glm_array_mat_get, - HONEY_FUNCTION, "set", honey_glm_array_mat_set, - HONEY_FUNCTION, "copyTo", honey_glm_mat3_copy, - HONEY_FUNCTION, "eye", honey_glm_mat3_eye, - HONEY_FUNCTION, "zero", honey_glm_mat3_zero, - HONEY_FUNCTION, "mul", honey_glm_mat3_mul, - HONEY_FUNCTION, "transpose", honey_glm_mat3_transpose, - HONEY_FUNCTION, "mulv", honey_glm_mat3_mulv, - HONEY_FUNCTION, "scale", honey_glm_mat3_scale, - HONEY_FUNCTION, "det", honey_glm_mat3_det, - HONEY_FUNCTION, "inv", honey_glm_mat3_inv, - - HONEY_FUNCTION, "__tostring", honey_glm_matrix_to_string, - - HONEY_FUNCTION, "__gc", honey_glm_array_destroy); - honey_glm_mat3_mt_ref = luaL_ref(L, LUA_REGISTRYINDEX); - - /* mat4 metatable */ - honey_lua_create_table - (L, 3, - - HONEY_TABLE, "__index", 25, - HONEY_FUNCTION, "get", honey_glm_array_mat_get, - HONEY_FUNCTION, "set", honey_glm_array_mat_set, - HONEY_FUNCTION, "copyTo", honey_glm_mat4_copy, - HONEY_FUNCTION, "eye", honey_glm_mat4_eye, - HONEY_FUNCTION, "zero", honey_glm_mat4_zero, - HONEY_FUNCTION, "mul", honey_glm_mat4_mul, - HONEY_FUNCTION, "transpose", honey_glm_mat4_transpose, - HONEY_FUNCTION, "mulv", honey_glm_mat4_mulv, - HONEY_FUNCTION, "scale", honey_glm_mat4_scale, - HONEY_FUNCTION, "det", honey_glm_mat4_det, - HONEY_FUNCTION, "inv", honey_glm_mat4_inv, - HONEY_FUNCTION, "basis", honey_glm_mat4_basis, - HONEY_FUNCTION, "translate", honey_glm_translate, - HONEY_FUNCTION, "translateX", honey_glm_translate_x, - HONEY_FUNCTION, "translateY", honey_glm_translate_y, - HONEY_FUNCTION, "translateZ", honey_glm_translate_z, - HONEY_FUNCTION, "scalev", honey_glm_scalev, - HONEY_FUNCTION, "rotateX", honey_glm_rotate_x, - HONEY_FUNCTION, "rotateY", honey_glm_rotate_y, - HONEY_FUNCTION, "rotateZ", honey_glm_rotate_z, - HONEY_FUNCTION, "rotate", honey_glm_rotate, - HONEY_FUNCTION, "perspective", honey_glm_perspective, - HONEY_FUNCTION, "perspectiveResize", honey_glm_perspective_resize, - HONEY_FUNCTION, "lookAt", honey_glm_lookat, - HONEY_FUNCTION, "look", honey_glm_look, - - HONEY_FUNCTION, "__tostring", honey_glm_matrix_to_string, - - HONEY_FUNCTION, "__gc", honey_glm_array_destroy); - honey_glm_mat4_mt_ref = luaL_ref(L, LUA_REGISTRYINDEX); - - create_vec3(L, 1, 0, 0, &honey_glm_UNIT_X_ref); - create_vec3(L, 0, 1, 0, &honey_glm_UNIT_Y_ref); - create_vec3(L, 0, 0, 1, &honey_glm_UNIT_Z_ref); - - /* glm table */ - honey_lua_create_table - (L, 4, - HONEY_FUNCTION, "vec3", honey_glm_new_vec3, - HONEY_FUNCTION, "vec4", honey_glm_new_vec4, - HONEY_FUNCTION, "mat3", honey_glm_new_mat3, - HONEY_FUNCTION, "mat4", honey_glm_new_mat4); - - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_glm_UNIT_X_ref); - lua_setfield(L, -2, "UNIT_X"); - - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_glm_UNIT_Y_ref); - lua_setfield(L, -2, "UNIT_Y"); - - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_glm_UNIT_Z_ref); - lua_setfield(L, -2, "UNIT_Z"); - - lua_setfield(L, -2, "glm"); -} - -/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * GLM Array Basic Functions - * - *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -static void setup_new_array(lua_State* L, - honey_glm_array* array, - honey_glm_array_type type, - int choice) -{ - unsigned int size; - switch(type) { - case VEC3: - size = 3; - break; - - case VEC4: - size = 4; - break; - - case MAT3: - size = 9; - break; - - case MAT4: - size = 16; - break; - - default: - honey_lua_throw_error(L, - "unknown array type: %d", - type); - break; - } - - array->type = type; - array->size = size; - array->data = calloc(size, sizeof(float)); - if (array->data == NULL) - honey_lua_throw_error(L, - "failed to allocate memory for array of type %d", - type); - - if (choice == 1) { - size_t length = lua_objlen(L, 1); - if (length != size) - honey_lua_throw_error - (L, "initialization table must contain %d elements; got %d elements instead", - size, length); - - for (int i=0; i<size; i++) { - lua_rawgeti(L, 1, i+1); - if (!lua_isnumber(L, -1)) - honey_lua_throw_error(L, "initialization table must contain only numbers"); - array->data[i] = lua_tonumber(L, -1); - lua_pop(L, 1); - } - } -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static int glm_matrix_dim(honey_glm_array_type type) -{ - switch (type) { - case MAT3: - return 3; - - case MAT4: - return 4; - - default: - return 0; - } -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_new_vec3(lua_State* L) -{ - int choice = honey_lua_parse_arguments(L, 2, 0, 1, HONEY_TABLE); - - honey_glm_array* vec3 = lua_newuserdata(L, sizeof(honey_glm_array)); - setup_new_array(L, vec3, VEC3, choice); - - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_glm_vec3_mt_ref); - lua_setmetatable(L, -2); - return 1; -} - -int honey_glm_new_vec4(lua_State* L) -{ - int choice = honey_lua_parse_arguments(L, 2, 0, 1, HONEY_TABLE); - honey_glm_array* vec4 = lua_newuserdata(L, sizeof(honey_glm_array)); - setup_new_array(L, vec4, VEC4, choice); - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_glm_vec4_mt_ref); - lua_setmetatable(L, -2); - return 1; -} - -int honey_glm_new_mat3(lua_State* L) -{ - int choice = honey_lua_parse_arguments(L, 2, 0, 1, HONEY_TABLE); - honey_glm_array* mat3 = lua_newuserdata(L, sizeof(honey_glm_array)); - setup_new_array(L, mat3, MAT3, choice); - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_glm_mat3_mt_ref); - lua_setmetatable(L, -2); - return 1; -} - -int honey_glm_new_mat4(lua_State* L) -{ - int choice = honey_lua_parse_arguments(L, 2, 0, 1, HONEY_TABLE); - honey_glm_array* mat4 = lua_newuserdata(L, sizeof(honey_glm_array)); - setup_new_array(L, mat4, MAT4, choice); - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_glm_mat4_mt_ref); - lua_setmetatable(L, -2); - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_array_vec_get(lua_State* L) -{ - honey_glm_array* self; - int index; - honey_lua_parse_arguments - (L, 1, 2, HONEY_USERDATA, &self, HONEY_INTEGER, &index); - - if (index < 0 || index >= self->size) - honey_lua_throw_error(L, "index %d is out of range", index); - - lua_pushnumber(L, self->data[index]); - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_array_vec_set(lua_State* L) -{ - honey_glm_array* self; - int index; - float value; - honey_lua_parse_arguments - (L, 1, 3, HONEY_USERDATA, &self, HONEY_INTEGER, &index, HONEY_NUMBER, &value); - - if (index < 0 || index >= self->size) - honey_lua_throw_error(L, "index %d is out of range", index); - - self->data[index] = value; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_array_mat_set(lua_State* L) -{ - honey_glm_array* self; - int column, row; - float value; - honey_lua_parse_arguments - (L, 1, 4, - HONEY_USERDATA, &self, - HONEY_INTEGER, &row, - HONEY_INTEGER, &column, - HONEY_NUMBER, &value); - - int dim = glm_matrix_dim(self->type); - - int index = (row - 1) + dim * (column - 1); - self->data[index] = value; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_array_mat_get(lua_State* L) -{ - honey_glm_array* self; - int column, row; - float value; - honey_lua_parse_arguments - (L, 1, 3, - HONEY_USERDATA, &self, - HONEY_INTEGER, &row, - HONEY_INTEGER, &column); - - int dim = glm_matrix_dim(self->type); - - int index = (row - 1) + dim * (column - 1); - lua_pushnumber(L, self->data[index]); - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vector_to_string(lua_State* L) -{ - honey_glm_array* self; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &self); - - char string[256]; - string[0] = '['; string[1] = ' '; string[2] = 0; - int index = 2; - for (int i=0; i<self->size; i++) { - index += snprintf(string + index, 256-index, "%7.3f ", self->data[i]); - if (i != self->size-1) { - string[index] = ' '; - index++; - } - } - - snprintf(string + index, 256-index, "]"); - - lua_pushstring(L, string); - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_matrix_to_string(lua_State* L) -{ - honey_glm_array* self; - int column, row; - float value; - honey_lua_parse_arguments - (L, 1, 1, HONEY_USERDATA, &self); - - int dim = glm_matrix_dim(self->type); - - char string[512]; - string[0] = 0; - int index = 0; - - for (int row=0; row<dim; row++) { - if (row == 0) - index += snprintf(string+index, 512-index, "/ "); - else if (row == dim-1) - index += snprintf(string+index, 512-index, "\\ "); - else - index += snprintf(string+index, 512-index, "| "); - for (int col=0; col<dim; col++) - index += snprintf(string+index, 512-index, "%7.3f ", self->data[row + dim*col]); - if (row == 0) - index += snprintf(string+index, 512-index, "\\\n"); - else if (row == dim-1) - index += snprintf(string+index, 512-index, "/\n"); - else - index += snprintf(string+index, 512-index, "|\n"); - } - - lua_pushstring(L, string); - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_array_destroy(lua_State* L) -{ - honey_glm_array* array; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &array); - free(array->data); - return 0; -} diff --git a/src/glm_bindings.h b/src/glm_bindings.h deleted file mode 100644 index 21d92b9..0000000 --- a/src/glm_bindings.h +++ /dev/null @@ -1,219 +0,0 @@ -#ifndef HONEY_GLM_BINDINGS_H -#define HONEY_GLM_BINDINGS_H - -/** @file glm_bindings.h - * @brief Lua bindings for GLM functions. - */ - -#include "common.h" - -extern int honey_glm_vec3_mt_ref; -extern int honey_glm_vec4_mt_ref; -extern int honey_glm_mat3_mt_ref; -extern int honey_glm_mat4_mt_ref; - -extern honey_glm_array UNIT_X; -extern honey_glm_array UNIT_Y; -extern honey_glm_array UNIT_Z; - -/** @brief Push the honey glm binding functions to the lua stack. - * - * @returns Nothing. - */ -void honey_setup_glm(lua_State* L); - -int honey_glm_new_vec3(lua_State* L); - -int honey_glm_new_vec4(lua_State* L); - -int honey_glm_new_mat3(lua_State* L); - -int honey_glm_new_mat4(lua_State* L); - -int honey_glm_array_vec_get(lua_State* L); - -int honey_glm_array_vec_set(lua_State* L); - -int honey_glm_array_mat_get(lua_State* L); - -int honey_glm_array_mat_set(lua_State* L); - -int honey_glm_vector_to_string(lua_State* L); - -int honey_glm_matrix_to_string(lua_State* L); - -int honey_glm_array_destroy(lua_State* L); - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Vec3 Functions - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -int honey_glm_vec3_copy(lua_State* L); - -int honey_glm_vec3_zero(lua_State* L); - -int honey_glm_vec3_eye(lua_State* L); - -int honey_glm_vec3_dot(lua_State* L); - -int honey_glm_vec3_cross(lua_State* L); - -int honey_glm_vec3_crossn(lua_State* L); - -int honey_glm_vec3_norm2(lua_State* L); - -int honey_glm_vec3_norm(lua_State* L); - -int honey_glm_vec3_add(lua_State* L); - -int honey_glm_vec3_adds(lua_State* L); - -int honey_glm_vec3_sub(lua_State* L); - -int honey_glm_vec3_subs(lua_State* L); - -int honey_glm_vec3_mul(lua_State* L); - -int honey_glm_vec3_muls(lua_State* L); - -int honey_glm_vec3_scale(lua_State* L); - -int honey_glm_vec3_scale_as(lua_State* L); - -int honey_glm_vec3_div(lua_State* L); - -int honey_glm_vec3_negate(lua_State* L); - -int honey_glm_vec3_normalize(lua_State* L); - -int honey_glm_vec3_angle(lua_State* L); - -int honey_glm_vec3_clamp(lua_State* L); - -int honey_glm_vec3_lerp(lua_State* L); - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Vec4 Functions - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -int honey_glm_vec4_copy(lua_State* L); - -int honey_glm_vec4_zero(lua_State* L); - -int honey_glm_vec4_eye(lua_State* L); - -int honey_glm_vec4_dot(lua_State* L); - -int honey_glm_vec4_norm2(lua_State* L); - -int honey_glm_vec4_norm(lua_State* L); - -int honey_glm_vec4_add(lua_State* L); - -int honey_glm_vec4_adds(lua_State* L); - -int honey_glm_vec4_sub(lua_State* L); - -int honey_glm_vec4_subs(lua_State* L); - -int honey_glm_vec4_mul(lua_State* L); - -int honey_glm_vec4_scale(lua_State* L); - -int honey_glm_vec4_scale_as(lua_State* L); - -int honey_glm_vec4_div(lua_State* L); - -int honey_glm_vec4_negate(lua_State* L); - -int honey_glm_vec4_normalize(lua_State* L); - -int honey_glm_vec4_clamp(lua_State* L); - -int honey_glm_vec4_lerp(lua_State* L); - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Mat3 Functions - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -int honey_glm_mat3_copy(lua_State* L); - -int honey_glm_mat3_eye(lua_State* L); - -int honey_glm_mat3_zero(lua_State* L); - -int honey_glm_mat3_mul(lua_State* L); - -int honey_glm_mat3_transpose(lua_State* L); - -int honey_glm_mat3_mulv(lua_State* L); - -int honey_glm_mat3_scale(lua_State* L); - -int honey_glm_mat3_det(lua_State* L); - -int honey_glm_mat3_inv(lua_State* L); - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Mat4 Functions - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -int honey_glm_mat4_copy(lua_State* L); - -int honey_glm_mat4_eye(lua_State* L); - -int honey_glm_mat4_zero(lua_State* L); - -int honey_glm_mat4_mul(lua_State* L); - -int honey_glm_mat4_transpose(lua_State* L); - -int honey_glm_mat4_mulv(lua_State* L); - -int honey_glm_mat4_scale(lua_State* L); - -int honey_glm_mat4_det(lua_State* L); - -int honey_glm_mat4_inv(lua_State* L); - -int honey_glm_mat4_basis(lua_State* L); - -int honey_glm_translate(lua_State* L); - -int honey_glm_translate_x(lua_State* L); - -int honey_glm_translate_y(lua_State* L); - -int honey_glm_translate_z(lua_State* L); - -int honey_glm_scalev(lua_State* L); - -int honey_glm_rotate_x(lua_State* L); - -int honey_glm_rotate_y(lua_State* L); - -int honey_glm_rotate_z(lua_State* L); - -int honey_glm_rotate(lua_State* L); - -int honey_glm_perspective(lua_State* L); - -int honey_glm_perspective_resize(lua_State* L); - -int honey_glm_lookat(lua_State* L); - -int honey_glm_look(lua_State* L); - -#endif diff --git a/src/glm_mat3_bindings.c b/src/glm_mat3_bindings.c deleted file mode 100644 index a789cce..0000000 --- a/src/glm_mat3_bindings.c +++ /dev/null @@ -1,200 +0,0 @@ -#include "glm_bindings.h" - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Mat3 Functions - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -int honey_glm_mat3_copy(lua_State* L) -{ - honey_glm_array* self, *dest; - honey_lua_parse_arguments - (L, 1, 2, - HONEY_USERDATA, &self, - HONEY_USERDATA, &dest); - - if (dest->type != MAT3) - honey_lua_throw_error - (L, "destination must be MAT3 (%d); got %d instead", - MAT3, dest->type); - - glm_mat3_copy(self->data, dest->data); - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_mat3_eye(lua_State* L) -{ - honey_glm_array* self; - honey_lua_parse_arguments - (L, 1, 1, HONEY_USERDATA, &self); - - glm_mat3_identity(self->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_mat3_zero(lua_State* L) -{ - honey_glm_array* self; - honey_lua_parse_arguments - (L, 1, 1, HONEY_USERDATA, &self); - - glm_mat3_zero(self->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_mat3_mul(lua_State* L) -{ - honey_glm_array* self, *mult, *dest; - int choice = honey_lua_parse_arguments - (L, 2, - 2, HONEY_USERDATA, &self, HONEY_USERDATA, &mult, - 3, HONEY_USERDATA, &self, HONEY_USERDATA, &mult, HONEY_USERDATA, &dest); - - if (mult->type != MAT3) - honey_lua_throw_error - (L, "second matrix must be of type MAT3 (%d); got %d instead", - MAT3, mult->type); - - if (choice == 1) { - if (dest->type != MAT3) - honey_lua_throw_error - (L, "destination matrix must be of type MAT3 (%d); got %d instead", - MAT3, dest->type); - } - else { - lua_pushcfunction(L, honey_glm_new_mat3); - honey_lua_pcall(L, 0, 1); - dest = lua_touserdata(L, -1); - } - - glm_mat3_mul(self->data, mult->data, dest->data); - - if (choice == 0) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_mat3_transpose(lua_State* L) -{ - honey_glm_array* self, *dest; - int choice = honey_lua_parse_arguments - (L, 2, - 1, HONEY_USERDATA, &self, - 2, HONEY_USERDATA, &self, HONEY_USERDATA, &dest); - - if (choice == 1) { - if (dest->type != MAT3) - honey_lua_throw_error - (L, "destination matrix must be of type MAT3 (%d); got %d instead", - MAT3, dest->type); - } - - if (choice == 0) - glm_mat3_transpose(self->data); - else - glm_mat3_transpose_to(self->data, dest->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_mat3_mulv(lua_State* L) -{ - honey_glm_array* self, *v, *dest; - int choice = honey_lua_parse_arguments - (L, 2, - 2, HONEY_USERDATA, &self, HONEY_USERDATA, &v, - 3, HONEY_USERDATA, &self, HONEY_USERDATA, &v, HONEY_USERDATA, &dest); - - if (v->type != VEC3) - honey_lua_throw_error - (L, "vector must be of type VEC3 (%d); got %d instead", - VEC3, v->type); - - if (choice == 0) { - lua_pushcfunction(L, honey_glm_new_vec3); - honey_lua_pcall(L, 0, 1); - dest = lua_touserdata(L, -1); - } - else { - if (dest->type == MAT3) - honey_lua_throw_error - (L, "destination matrix must be of type MAT3 (%d); got %d instead", - MAT3, dest->type); - } - - glm_mat3_mulv(self->data, v->data, dest->data); - - if (choice == 0) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_mat3_scale(lua_State* L) -{ - honey_glm_array* self; - float s; - int choice = honey_lua_parse_arguments - (L, 1, - 2, HONEY_USERDATA, &self, HONEY_NUMBER, &s); - - glm_mat3_scale(self->data, s); - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_mat3_det(lua_State* L) -{ - honey_glm_array* self; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &self); - - float det = glm_mat3_det(self->data); - lua_pushnumber(L, det); - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_mat3_inv(lua_State* L) -{ - honey_glm_array* self, *dest; - int choice = honey_lua_parse_arguments - (L, 2, - 1, HONEY_USERDATA, &self, - 2, HONEY_USERDATA, &self, HONEY_USERDATA, &dest); - - if (choice == 0) { - lua_pushcfunction(L, honey_glm_new_mat3); - honey_lua_pcall(L, 0, 1); - dest = lua_touserdata(L, -1); - } - else { - if (dest->type == MAT3) - honey_lua_throw_error - (L, "destination matrix must be of type MAT3 (%d); got %d instead", - MAT3, dest->type); - } - - glm_mat3_inv(self->data, dest->data); - - if (choice == 0) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/src/glm_mat4_bindings.c b/src/glm_mat4_bindings.c deleted file mode 100644 index f27130b..0000000 --- a/src/glm_mat4_bindings.c +++ /dev/null @@ -1,541 +0,0 @@ -#include "glm_bindings.h" - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Mat4 Functions - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -int honey_glm_mat4_copy(lua_State* L) -{ - honey_glm_array* self, *dest; - honey_lua_parse_arguments - (L, 1, 2, - HONEY_USERDATA, &self, - HONEY_USERDATA, &dest); - - if (dest->type != MAT4) - honey_lua_throw_error - (L, "destination must be MAT4 (%d); got %d instead", - MAT4, dest->type); - - glm_mat4_copy(self->data, dest->data); - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_mat4_eye(lua_State* L) -{ - honey_glm_array* self; - honey_lua_parse_arguments - (L, 1, 1, HONEY_USERDATA, &self); - - glm_mat4_identity(self->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_mat4_zero(lua_State* L) -{ - honey_glm_array* self; - honey_lua_parse_arguments - (L, 1, 1, HONEY_USERDATA, &self); - - glm_mat4_zero(self->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_mat4_mul(lua_State* L) -{ - honey_glm_array* self, *mult, *dest; - int choice = honey_lua_parse_arguments - (L, 2, - 2, HONEY_USERDATA, &self, HONEY_USERDATA, &mult, - 3, HONEY_USERDATA, &self, HONEY_USERDATA, &mult, HONEY_USERDATA, &dest); - - if (mult->type != MAT4) - honey_lua_throw_error - (L, "second matrix must be of type MAT4 (%d); got %d instead", - MAT4, mult->type); - - if (choice == 1) { - if (dest->type != MAT4) - honey_lua_throw_error - (L, "destination matrix must be of type MAT4 (%d); got %d instead", - MAT4, dest->type); - } - else { - lua_pushcfunction(L, honey_glm_new_mat4); - honey_lua_pcall(L, 0, 1); - dest = lua_touserdata(L, -1); - } - - glm_mat4_mul(self->data, mult->data, dest->data); - - if (choice == 0) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_mat4_transpose(lua_State* L) -{ - honey_glm_array* self, *dest; - int choice = honey_lua_parse_arguments - (L, 2, - 1, HONEY_USERDATA, &self, - 2, HONEY_USERDATA, &self, HONEY_USERDATA, &dest); - - if (choice == 1) { - if (dest->type != MAT4) - honey_lua_throw_error - (L, "destination matrix must be of type MAT4 (%d); got %d instead", - MAT4, dest->type); - } - - if (choice == 0) - glm_mat4_transpose(self->data); - else - glm_mat4_transpose_to(self->data, dest->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_mat4_mulv(lua_State* L) -{ - honey_glm_array* self, *v, *dest; - int choice = honey_lua_parse_arguments - (L, 2, - 2, HONEY_USERDATA, &self, HONEY_USERDATA, &v, - 4, HONEY_USERDATA, &self, HONEY_USERDATA, &v, HONEY_USERDATA, &dest); - - if (v->type != VEC4) - honey_lua_throw_error - (L, "vector must be of type VEC4 (%d); got %d instead", - VEC4, v->type); - - if (choice == 0) { - lua_pushcfunction(L, honey_glm_new_vec4); - honey_lua_pcall(L, 0, 1); - dest = lua_touserdata(L, -1); - } - else { - if (dest->type == MAT4) - honey_lua_throw_error - (L, "destination matrix must be of type MAT4 (%d); got %d instead", - MAT4, dest->type); - } - - glm_mat4_mulv(self->data, v->data, dest->data); - - if (choice == 0) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_mat4_scale(lua_State* L) -{ - honey_glm_array* self; - float s; - int choice = honey_lua_parse_arguments - (L, 1, - 2, HONEY_USERDATA, &self, HONEY_NUMBER, &s); - - glm_mat4_scale(self->data, s); - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_mat4_det(lua_State* L) -{ - honey_glm_array* self; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &self); - - float det = glm_mat4_det(self->data); - lua_pushnumber(L, det); - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_mat4_inv(lua_State* L) -{ - honey_glm_array* self, *dest; - int choice = honey_lua_parse_arguments - (L, 2, - 1, HONEY_USERDATA, &self, - 2, HONEY_USERDATA, &self, HONEY_USERDATA, &dest); - - if (choice == 0) { - lua_pushcfunction(L, honey_glm_new_mat4); - honey_lua_pcall(L, 0, 1); - dest = lua_touserdata(L, -1); - } - else { - if (dest->type == MAT4) - honey_lua_throw_error - (L, "destination matrix must be of type MAT4 (%d); got %d instead", - MAT4, dest->type); - } - - glm_mat4_inv(self->data, dest->data); - - if (choice == 0) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_mat4_basis(lua_State* L) -{ - honey_glm_array* self; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &self); - - - lua_createtable(L, 0, 3); - honey_glm_array *x, *y, *z; - - lua_pushcfunction(L, honey_glm_new_vec3); - honey_lua_pcall(L, 0, 1); - x = lua_touserdata(L, -1); - lua_setfield(L, -2, "x"); - - lua_pushcfunction(L, honey_glm_new_vec3); - honey_lua_pcall(L, 0, 1); - y = lua_touserdata(L, -1); - lua_setfield(L, -2, "y"); - - lua_pushcfunction(L, honey_glm_new_vec3); - honey_lua_pcall(L, 0, 1); - z = lua_touserdata(L, -1); - lua_setfield(L, -2, "z"); - - x->data[0] = self->data[0]; - x->data[1] = self->data[1]; - x->data[2] = self->data[2]; - - y->data[0] = self->data[4]; - y->data[1] = self->data[5]; - y->data[2] = self->data[6]; - - z->data[0] = self->data[8]; - z->data[1] = self->data[9]; - z->data[2] = self->data[10]; - - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Affine Transforms - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -int honey_glm_translate(lua_State* L) -{ - honey_glm_array *self, *v, *dest; - int choice = honey_lua_parse_arguments - (L, 2, - 2, HONEY_USERDATA, &self, HONEY_USERDATA, &v, - 3, HONEY_USERDATA, &self, HONEY_USERDATA, &v, HONEY_USERDATA, &dest); - - if (v->type != VEC3) - honey_lua_throw_error - (L, "translation vector must be of type VEC3 (%d); got %d instead", - VEC3, v->type); - - if (choice == 0) { - glm_translate(self->data, v->data); - } - else { - if (dest->type != MAT4) - honey_lua_throw_error - (L, "destination matrix must be of type MAT4 (%d); got %d instead", - MAT4, dest->type); - glm_translate_to(self->data, v->data, dest->data); - } - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_translate_x(lua_State* L) -{ - honey_glm_array* self; - float s; - honey_lua_parse_arguments(L, 1, 2, HONEY_USERDATA, &self, HONEY_NUMBER, &s); - - glm_translate_x(self->data, s); - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_translate_y(lua_State* L) -{ - honey_glm_array* self; - float s; - honey_lua_parse_arguments(L, 1, 2, HONEY_USERDATA, &self, HONEY_NUMBER, &s); - - glm_translate_y(self->data, s); - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_translate_z(lua_State* L) -{ - honey_glm_array* self; - float s; - honey_lua_parse_arguments(L, 1, 2, HONEY_USERDATA, &self, HONEY_NUMBER, &s); - - glm_translate_z(self->data, s); - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_scalev(lua_State* L) -{ - honey_glm_array* self, *v, *dest; - int choice = honey_lua_parse_arguments - (L, 2, - 2, HONEY_USERDATA, &self, HONEY_USERDATA, &v, - 3, HONEY_USERDATA, &self, HONEY_USERDATA, &v, HONEY_USERDATA, &dest); - - if (v->type != VEC3) - honey_lua_throw_error - (L, "scale vector must be of type VEC3 (%d); got %d instead", - VEC3, v->type); - - if (choice == 0) - glm_scale(self->data, v->data); - else { - if (dest->type != MAT4) - honey_lua_throw_error - (L, "destination matrix must be of type MAT4 (%d); got %d instead", - MAT4, dest->type); - - glm_scale_to(self->data, v->data, dest->data); - } - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_rotate_x(lua_State* L) -{ - honey_glm_array* self, *dest; - float angle; - int choice = honey_lua_parse_arguments - (L, 2, - 2, HONEY_USERDATA, &self, HONEY_NUMBER, &angle, - 3, HONEY_USERDATA, &self, HONEY_NUMBER, &angle, HONEY_USERDATA, &dest); - - if (choice == 0) - dest = self; - else { - if (dest->type != MAT4) - honey_lua_throw_error - (L, "destination matrix must be of type MAT4 (%d); got %d instead", - MAT4, dest->type); - } - - glm_rotate_x(self->data, angle, dest->data); - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_rotate_y(lua_State* L) -{ - honey_glm_array* self, *dest; - float angle; - int choice = honey_lua_parse_arguments - (L, 2, - 2, HONEY_USERDATA, &self, HONEY_NUMBER, &angle, - 3, HONEY_USERDATA, &self, HONEY_NUMBER, &angle, HONEY_USERDATA, &dest); - - if (choice == 0) - dest = self; - else { - if (dest->type != MAT4) - honey_lua_throw_error - (L, "destination matrix must be of type MAT4 (%d); got %d instead", - MAT4, dest->type); - } - - glm_rotate_y(self->data, angle, dest->data); - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_rotate_z(lua_State* L) -{ - honey_glm_array* self, *dest; - float angle; - int choice = honey_lua_parse_arguments - (L, 2, - 2, HONEY_USERDATA, &self, HONEY_NUMBER, &angle, - 3, HONEY_USERDATA, &self, HONEY_NUMBER, &angle, HONEY_USERDATA, &dest); - - if (choice == 0) - dest = self; - else { - if (dest->type != MAT4) - honey_lua_throw_error - (L, "destination matrix must be of type MAT4 (%d); got %d instead", - MAT4, dest->type); - } - - glm_rotate_z(self->data, angle, dest->data); - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_rotate(lua_State* L) -{ - honey_glm_array *self, *pivot, *axis; - float angle; - int choice = honey_lua_parse_arguments - (L, 1, - 4, - HONEY_USERDATA, &self, HONEY_USERDATA, &pivot, - HONEY_NUMBER, &angle, HONEY_USERDATA, &axis); - - if (pivot->type != VEC3) - honey_lua_throw_error - (L, "pivot vector must be of type VEC3 (%d); got %d instead", - VEC3, pivot->type); - - if (axis->type != VEC3) - honey_lua_throw_error - (L, "axis vector must be of type VEC3 (%d); got %d instead", - VEC3, axis->type); - - glm_rotate_at(self->data, pivot->data, angle, axis->data); - - return 0; -} -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Camera functions - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -int honey_glm_perspective(lua_State* L) -{ - honey_glm_array *self; - float fov, aspect, near, far; - honey_lua_parse_arguments - (L, 1, 5, - HONEY_USERDATA, &self, - HONEY_NUMBER, &fov, HONEY_NUMBER, &aspect, - HONEY_NUMBER, &near, HONEY_NUMBER, &far); - - glm_perspective(fov, aspect, near, far, self->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_perspective_resize(lua_State* L) -{ - honey_glm_array *self; - float new_aspect; - honey_lua_parse_arguments - (L, 1, 2, HONEY_USERDATA, &self, HONEY_NUMBER, new_aspect); - - glm_perspective_resize(new_aspect, self->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_lookat(lua_State* L) -{ - honey_glm_array *self, *eye, *center, *up; - honey_lua_parse_arguments - (L, 1, 4, - HONEY_USERDATA, &self, - HONEY_USERDATA, &eye, - HONEY_USERDATA, ¢er, - HONEY_USERDATA, &up); - - if (eye->type != VEC3) - honey_lua_throw_error - (L, "eye vector must be of type VEC3 (%d); got %d instead", - VEC3, eye->type); - - if (center->type != VEC3) - honey_lua_throw_error - (L, "center vector must be of type VEC3 (%d); got %d instead", - VEC3, center->type); - - if (up->type != VEC3) - honey_lua_throw_error - (L, "up vector must be of type VEC3 (%d); got %d instead", - VEC3, up->type); - - glm_lookat(eye->data, center->data, up->data, self->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_look(lua_State* L) -{ - honey_glm_array *self, *eye, *dir, *up; - honey_lua_parse_arguments - (L, 1, 4, - HONEY_USERDATA, &self, - HONEY_USERDATA, &eye, - HONEY_USERDATA, &dir, - HONEY_USERDATA, &up); - - if (eye->type != VEC3) - honey_lua_throw_error - (L, "eye vector must be of type VEC3 (%d); got %d instead", - VEC3, eye->type); - - if (dir->type != VEC3) - honey_lua_throw_error - (L, "direction vector must be of type VEC3 (%d); got %d instead", - VEC3, dir->type); - - if (up->type != VEC3) - honey_lua_throw_error - (L, "up vector must be of type VEC3 (%d); got %d instead", - VEC3, up->type); - - glm_look(eye->data, dir->data, up->data, self->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - diff --git a/src/glm_vec3_bindings.c b/src/glm_vec3_bindings.c deleted file mode 100644 index e6ea407..0000000 --- a/src/glm_vec3_bindings.c +++ /dev/null @@ -1,420 +0,0 @@ -#include "glm_bindings.h" - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Vec3 Functions - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - - -int honey_glm_vec3_copy(lua_State* L) -{ - honey_glm_array *self, *dest; - honey_lua_parse_arguments - (L, 1, 2, HONEY_USERDATA, &self, HONEY_USERDATA, &dest); - - if (dest->type != VEC3) - honey_lua_throw_error(L, "destination must be VEC3 (%d); got %d instead", - dest->type); - - glm_vec3_copy(self->data, dest->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_zero(lua_State* L) -{ - honey_glm_array *self; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &self); - - glm_vec3_zero(self->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_eye(lua_State* L) -{ - honey_glm_array *self; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &self); - - glm_vec3_one(self->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_dot(lua_State* L) -{ - honey_glm_array *a, *b; - honey_lua_parse_arguments - (L, 1, 2, - HONEY_USERDATA, &a, - HONEY_USERDATA, &b); - - if (b->type != VEC3) - honey_lua_throw_error(L, "destination must be VEC3 (%d); got %d instead", - VEC3, b->type); - - float result = glm_vec3_dot(a->data, b->data); - - lua_pushnumber(L, result); - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static bool get_vec3_arrays(lua_State* L, - honey_glm_array** a, - honey_glm_array** b, - honey_glm_array** dest) -{ - int choice = honey_lua_parse_arguments - (L, 2, - 2, HONEY_USERDATA, a, HONEY_USERDATA, b, - 3, HONEY_USERDATA, a, HONEY_USERDATA, b, HONEY_USERDATA, dest); - - if ((*b)->type != VEC3) - honey_lua_throw_error - (L, "second argument must be VEC3 (%d); got %d instead", - VEC3, (*b)->type); - - if (choice == 1) { - if ((*dest)->type != VEC3) - honey_lua_throw_error - (L, "third argument must be VEC3 (%d); got %d instead", - VEC3, (*dest)->type); - } - else { - lua_pushcfunction(L, honey_glm_new_vec3); - honey_lua_pcall(L, 0, 1); - *dest = lua_touserdata(L, -1); - } - - return choice == 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static bool get_vec3_scalars(lua_State* L, - honey_glm_array** a, - float* s, - honey_glm_array** dest) -{ - int choice = honey_lua_parse_arguments - (L, 2, - 2, HONEY_USERDATA, a, HONEY_NUMBER, s, - 3, HONEY_USERDATA, a, HONEY_NUMBER, s, HONEY_USERDATA, dest); - - if (choice == 1) { - if ((*dest)->type != VEC3) - honey_lua_throw_error - (L, "third argument must be VEC3 (%d); got %d instead", - VEC3, (*dest)->type); - } - else { - lua_pushcfunction(L, honey_glm_new_vec3); - honey_lua_pcall(L, 0, 1); - *dest = lua_touserdata(L, -1); - } - - return choice == 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_cross(lua_State* L) -{ - honey_glm_array *a, *b, *dest; - bool new_dest = get_vec3_arrays(L, &a, &b, &dest); - - glm_vec3_cross(a->data, b->data, dest->data); - - if (new_dest) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_crossn(lua_State* L) -{ - honey_glm_array *a, *b, *dest; - bool new_dest = get_vec3_arrays(L, &a, &b, &dest); - - glm_vec3_crossn(a->data, b->data, dest->data); - - if (new_dest) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_norm2(lua_State* L) -{ - honey_glm_array *self; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &self); - float result = glm_vec3_norm2(self->data); - lua_pushnumber(L, result); - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_norm(lua_State* L) -{ - honey_glm_array *self; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &self); - float result = glm_vec3_norm(self->data); - lua_pushnumber(L, result); - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_add(lua_State* L) -{ - honey_glm_array *a, *b, *dest; - bool new_dest = get_vec3_arrays(L, &a, &b, &dest); - - glm_vec3_add(a->data, b->data, dest->data); - - if (new_dest) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_adds(lua_State* L) -{ - honey_glm_array *self, *dest; - float s; - bool new_dest = get_vec3_scalars(L, &self, &s, &dest); - - glm_vec3_adds(self->data, s, dest->data); - - if (new_dest) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_sub(lua_State* L) -{ - honey_glm_array *a, *b, *dest; - bool new_dest = get_vec3_arrays(L, &a, &b, &dest); - - glm_vec3_sub(a->data, b->data, dest->data); - - if (new_dest) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_subs(lua_State* L) -{ - honey_glm_array *self, *dest; - float s; - bool new_dest = get_vec3_scalars(L, &self, &s, &dest); - - glm_vec3_subs(self->data, s, dest->data); - - if (new_dest) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_mul(lua_State* L) -{ - honey_glm_array *a, *b, *dest; - bool new_dest = get_vec3_arrays(L, &a, &b, &dest); - - glm_vec3_mul(a->data, b->data, dest->data); - - if (new_dest) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_muls(lua_State* L) -{ - honey_glm_array *self, *dest; - float s; - int choice = honey_lua_parse_arguments - (L, 2, - 2, HONEY_USERDATA, &self, HONEY_NUMBER, &s, - 3, HONEY_USERDATA, &self, HONEY_NUMBER, &s, HONEY_USERDATA, &dest); - - if (choice == 0) - dest = self; - else { - if (dest->type != VEC3) - honey_lua_throw_error - (L, "destination vector must be of type VEC3 (%d); got %d instead", - VEC3, dest->type); - } - - dest->data[0] = s * self->data[0]; - dest->data[1] = s * self->data[1]; - dest->data[2] = s * self->data[2]; - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_scale(lua_State* L) -{ - honey_glm_array *self, *dest; - float s; - bool new_dest = get_vec3_scalars(L, &self, &s, &dest); - - glm_vec3_scale(self->data, s, dest->data); - - if (new_dest) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_scale_as(lua_State* L) -{ - honey_glm_array *self, *dest; - float s; - bool new_dest = get_vec3_scalars(L, &self, &s, &dest); - - glm_vec3_scale_as(self->data, s, dest->data); - - if (new_dest) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_div(lua_State* L) -{ - honey_glm_array *a, *b, *dest; - bool new_dest = get_vec3_arrays(L, &a, &b, &dest); - - glm_vec3_div(a->data, b->data, dest->data); - - if (new_dest) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_negate(lua_State* L) -{ - honey_glm_array *self, *dest; - int choice = honey_lua_parse_arguments - (L, 2, - 1, HONEY_USERDATA, &self, - 2, HONEY_USERDATA, &self, HONEY_USERDATA, &dest); - - if (choice == 0) - glm_vec3_negate(self->data); - else - glm_vec3_negate_to(self->data, dest->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_normalize(lua_State* L) -{ - honey_glm_array *self, *dest; - int choice = honey_lua_parse_arguments - (L, 2, - 1, HONEY_USERDATA, &self, - 2, HONEY_USERDATA, &self, HONEY_USERDATA, &dest); - - if (choice == 0) - glm_vec3_normalize(self->data); - else - glm_vec3_normalize_to(self->data, dest->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_angle(lua_State* L) -{ - honey_glm_array *a, *b; - honey_lua_parse_arguments - (L, 1, 2, - HONEY_USERDATA, &a, HONEY_USERDATA, &b); - - if (b->type != VEC3) - honey_lua_throw_error - (L, "second argument must be VEC3 (%d); got %d instead", - VEC3, b->type); - - float angle = glm_vec3_angle(a->data, b->data); - lua_pushnumber(L, angle); - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_clamp(lua_State* L) -{ - honey_glm_array* self; - float min, max; - honey_lua_parse_arguments(L, 1, 3, - HONEY_USERDATA, &self, - HONEY_NUMBER, &min, - HONEY_NUMBER, &max); - - glm_vec3_clamp(self->data, min, max); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec3_lerp(lua_State* L) -{ - honey_glm_array *a, *b, *dest; - float s; - int choice = honey_lua_parse_arguments - (L, 2, - 3, HONEY_USERDATA, &a, HONEY_USERDATA, &b, HONEY_NUMBER, &s, - 4, HONEY_USERDATA, &a, HONEY_USERDATA, &b, HONEY_NUMBER, &s, HONEY_USERDATA, &dest); - - if (b->type != VEC3) - honey_lua_throw_error - (L, "second argument must be VEC3 (%d); got %d instead", - VEC3, b->type); - - if (choice == 1) { - if (dest->type != VEC3) - honey_lua_throw_error - (L, "fourth argument must be VEC3 (%d); got %d instead", - VEC3, dest->type); - } - else { - lua_pushcfunction(L, honey_glm_new_vec3); - honey_lua_pcall(L, 0, 1); - dest = lua_touserdata(L, -1); - } - - glm_vec3_lerp(a->data, b->data, s, dest->data); - - if (choice == 0) - return 1; - return 0; -} diff --git a/src/glm_vec4_bindings.c b/src/glm_vec4_bindings.c deleted file mode 100644 index 0a18c5b..0000000 --- a/src/glm_vec4_bindings.c +++ /dev/null @@ -1,346 +0,0 @@ -#include "glm_bindings.h" - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Vec4 Functions - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - - -int honey_glm_vec4_copy(lua_State* L) -{ - honey_glm_array *self, *dest; - honey_lua_parse_arguments - (L, 1, 2, HONEY_USERDATA, &self, HONEY_USERDATA, &dest); - - if (dest->type != VEC4) - honey_lua_throw_error(L, "destination must be VEC4 (%d); got %d instead", - dest->type); - - glm_vec4_copy(self->data, dest->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec4_zero(lua_State* L) -{ - honey_glm_array *self; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &self); - - glm_vec4_zero(self->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec4_eye(lua_State* L) -{ - honey_glm_array *self; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &self); - - glm_vec4_one(self->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec4_dot(lua_State* L) -{ - honey_glm_array *a, *b; - honey_lua_parse_arguments - (L, 1, 2, - HONEY_USERDATA, &a, - HONEY_USERDATA, &b); - - if (b->type != VEC4) - honey_lua_throw_error(L, "destination must be VEC4 (%d); got %d instead", - VEC4, b->type); - - float result = glm_vec4_dot(a->data, b->data); - - lua_pushnumber(L, result); - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static bool get_vec4_arrays(lua_State* L, - honey_glm_array** a, - honey_glm_array** b, - honey_glm_array** dest) -{ - int choice = honey_lua_parse_arguments - (L, 2, - 2, HONEY_USERDATA, a, HONEY_USERDATA, b, - 3, HONEY_USERDATA, a, HONEY_USERDATA, b, HONEY_USERDATA, dest); - - if ((*b)->type != VEC4) - honey_lua_throw_error - (L, "second argument must be VEC4 (%d); got %d instead", - VEC4, (*b)->type); - - if (choice == 1) { - if ((*dest)->type != VEC4) - honey_lua_throw_error - (L, "third argument must be VEC4 (%d); got %d instead", - VEC4, (*dest)->type); - } - else { - lua_pushcfunction(L, honey_glm_new_vec4); - honey_lua_pcall(L, 0, 1); - *dest = lua_touserdata(L, -1); - } - - return choice == 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static bool get_vec4_scalars(lua_State* L, - honey_glm_array** a, - float* s, - honey_glm_array** dest) -{ - int choice = honey_lua_parse_arguments - (L, 2, - 2, HONEY_USERDATA, a, HONEY_NUMBER, s, - 3, HONEY_USERDATA, a, HONEY_NUMBER, s, HONEY_USERDATA, dest); - - if (choice == 1) { - if ((*dest)->type != VEC4) - honey_lua_throw_error - (L, "third argument must be VEC4 (%d); got %d instead", - VEC4, (*dest)->type); - } - else { - lua_pushcfunction(L, honey_glm_new_vec4); - honey_lua_pcall(L, 0, 1); - *dest = lua_touserdata(L, -1); - } - - return choice == 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec4_norm2(lua_State* L) -{ - honey_glm_array *self; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &self); - float result = glm_vec4_norm2(self->data); - lua_pushnumber(L, result); - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec4_norm(lua_State* L) -{ - honey_glm_array *self; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &self); - float result = glm_vec4_norm(self->data); - lua_pushnumber(L, result); - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec4_add(lua_State* L) -{ - honey_glm_array *a, *b, *dest; - bool new_dest = get_vec4_arrays(L, &a, &b, &dest); - - glm_vec4_add(a->data, b->data, dest->data); - - if (new_dest) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec4_adds(lua_State* L) -{ - honey_glm_array *self, *dest; - float s; - bool new_dest = get_vec4_scalars(L, &self, &s, &dest); - - glm_vec4_adds(self->data, s, dest->data); - - if (new_dest) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec4_sub(lua_State* L) -{ - honey_glm_array *a, *b, *dest; - bool new_dest = get_vec4_arrays(L, &a, &b, &dest); - - glm_vec4_sub(a->data, b->data, dest->data); - - if (new_dest) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec4_subs(lua_State* L) -{ - honey_glm_array *self, *dest; - float s; - bool new_dest = get_vec4_scalars(L, &self, &s, &dest); - - glm_vec4_subs(self->data, s, dest->data); - - if (new_dest) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec4_mul(lua_State* L) -{ - honey_glm_array *a, *b, *dest; - bool new_dest = get_vec4_arrays(L, &a, &b, &dest); - - glm_vec4_mul(a->data, b->data, dest->data); - - if (new_dest) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec4_scale(lua_State* L) -{ - honey_glm_array *self, *dest; - float s; - bool new_dest = get_vec4_scalars(L, &self, &s, &dest); - - glm_vec4_scale(self->data, s, dest->data); - - if (new_dest) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec4_scale_as(lua_State* L) -{ - honey_glm_array *self, *dest; - float s; - bool new_dest = get_vec4_scalars(L, &self, &s, &dest); - - glm_vec4_scale_as(self->data, s, dest->data); - - if (new_dest) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec4_div(lua_State* L) -{ - honey_glm_array *a, *b, *dest; - bool new_dest = get_vec4_arrays(L, &a, &b, &dest); - - glm_vec4_div(a->data, b->data, dest->data); - - if (new_dest) - return 1; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec4_negate(lua_State* L) -{ - honey_glm_array *self, *dest; - int choice = honey_lua_parse_arguments - (L, 2, - 1, HONEY_USERDATA, &self, - 2, HONEY_USERDATA, &self, HONEY_USERDATA, &dest); - - if (choice == 0) - glm_vec4_negate(self->data); - else - glm_vec4_negate_to(self->data, dest->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec4_normalize(lua_State* L) -{ - honey_glm_array *self, *dest; - int choice = honey_lua_parse_arguments - (L, 2, - 1, HONEY_USERDATA, &self, - 2, HONEY_USERDATA, &self, HONEY_USERDATA, &dest); - - if (choice == 0) - glm_vec4_normalize(self->data); - else - glm_vec4_normalize_to(self->data, dest->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec4_clamp(lua_State* L) -{ - honey_glm_array* self; - float min, max; - honey_lua_parse_arguments(L, 1, 3, - HONEY_USERDATA, &self, - HONEY_NUMBER, &min, - HONEY_NUMBER, &max); - - glm_vec4_clamp(self->data, min, max); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_glm_vec4_lerp(lua_State* L) -{ - honey_glm_array *a, *b, *dest; - float s; - int choice = honey_lua_parse_arguments - (L, 2, - 3, HONEY_USERDATA, &a, HONEY_USERDATA, &b, HONEY_NUMBER, &s, - 4, HONEY_USERDATA, &a, HONEY_USERDATA, &b, HONEY_NUMBER, &s, HONEY_USERDATA, &dest); - - if (b->type != VEC4) - honey_lua_throw_error - (L, "second argument must be VEC4 (%d); got %d instead", - VEC4, b->type); - - if (choice == 1) { - if (dest->type != VEC4) - honey_lua_throw_error - (L, "fourth argument must be VEC4 (%d); got %d instead", - VEC4, dest->type); - } - else { - lua_pushcfunction(L, honey_glm_new_vec4); - honey_lua_pcall(L, 0, 1); - dest = lua_touserdata(L, -1); - } - - glm_vec4_lerp(a->data, b->data, s, dest->data); - - if (choice == 0) - return 1; - return 0; -} diff --git a/src/honey.c b/src/honey.c deleted file mode 100644 index 793f5b5..0000000 --- a/src/honey.c +++ /dev/null @@ -1,253 +0,0 @@ -#include "honey.h" - -void honey_print_help() -{ - printf("usage: honey [OPTIONS] SCRIPT_DIR\n" - " -v Enable verbose logging\n" - " -h Show this help message and exit\n" - " -l LOG Log to LOG instead of stdout\n"); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -bool honey_parse_options(honey_options* options, int argc, char** argv) -{ - honey_options opts; - opts.verbose = false; - opts.script_directory = NULL; - opts.logfile = NULL; - - opterr = 0; - int c; - - while ((c = getopt(argc, argv, "vhl:")) != -1) { - switch (c) { - case 'v': - opts.verbose = true; - break; - - case 'h': - honey_print_help(); - return false; - - case 'l': - opts.logfile = optarg; - break; - - case '?': - fprintf(stderr, "unknown option: '%c'\n", optopt); - honey_print_help(); - return false; - - default: - return false; - } - } - - if (optind < argc) { - opts.script_directory = argv[optind]; - } - - *options = opts; - - return true; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static int honey_lua_clear_color(lua_State* L) -{ - honey_glm_array* color_array; - bool color, depth, stencil; - honey_lua_parse_arguments(L, 1, 4, - HONEY_USERDATA, &color_array, - HONEY_BOOLEAN, &color, - HONEY_BOOLEAN, &depth, - HONEY_BOOLEAN, &stencil); - float r = color_array->data[0]; - float g = color_array->data[1]; - float b = color_array->data[2]; - float a = color_array->data[3]; - - int clear_flags = 0; - if (color) - clear_flags = clear_flags | GL_COLOR_BUFFER_BIT; - if (depth) - clear_flags = clear_flags | GL_DEPTH_BUFFER_BIT; - if (stencil) - clear_flags = clear_flags | GL_STENCIL_BUFFER_BIT; - - glClearColor(r, g, b, a); - glClear(clear_flags); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_lua_enable_depth_test(lua_State* L) -{ - bool enable; - honey_lua_parse_arguments(L, 1, 1, HONEY_BOOLEAN, &enable); - if (enable) - glEnable(GL_DEPTH_TEST); - else - glDisable(GL_DEPTH_TEST); - return 0; -} - -int honey_lua_set_viewport_size(lua_State* L) -{ - int width, height; - honey_lua_parse_arguments(L, 1, 2, - HONEY_INTEGER, &width, - HONEY_INTEGER, &height); - glViewport(0,0,width,height); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -bool honey_setup(lua_State** L) -{ - /* set up lua and honey lua bindings */ - *L = luaL_newstate(); - luaL_openlibs(*L); - - lua_createtable(*L, 0, 1); - - if (!honey_setup_window(*L)) - return false; - - honey_setup_input(*L); - lua_setfield(*L, -2, "input"); - - honey_setup_glm(*L); - - honey_setup_shader(*L); - - honey_setup_mesh(*L); - - honey_setup_texture(*L); - - honey_setup_cairo(*L); - - lua_pushcfunction(*L, honey_exit); - lua_setfield(*L, -2, "exit"); - - lua_pushcfunction(*L, honey_set_framebuffer); - lua_setfield(*L, -2, "set_framebuffer"); - - lua_pushcfunction(*L, honey_lua_clear_color); - lua_setfield(*L, -2, "clear_color"); - - lua_pushcfunction(*L, honey_lua_enable_depth_test); - lua_setfield(*L, -2, "enable_depth_test"); - - lua_pushcfunction(*L, honey_lua_set_viewport_size); - lua_setfield(*L, -2, "set_viewport_size"); - - lua_setglobal(*L, "honey"); - - return true; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -bool honey_run(lua_State* L, honey_options opts) { - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_window_info_ref); - honey_window_information* info = lua_touserdata(L, -1); - honey_window window = info->window; - - chdir(opts.script_directory); - - if (luaL_loadfile(L, "main.lua") == 0) { - if (!honey_lua_pcall(L, 0, 1) == 0) { - const char* error = lua_tostring(L, -1); - fprintf(stderr, "[honey] ERROR: %s\n", error); - return false; - } - } - else { - - fprintf(stderr, - "[honey] ERROR: failed to load main.lua: %s!\n", - lua_tostring(L, -1)); - return false; - } - - int update_callback = honey_get_callback(L, "update"); - int draw_callback = honey_get_callback(L, "draw"); - - float prevTime = 0; - float currentTime = 0; - float dt; - float drawTime = 0; - - while (!glfwWindowShouldClose(window)) { - currentTime = (float) glfwGetTime(); - dt = currentTime - prevTime; - prevTime = currentTime; - drawTime += dt; - glfwPollEvents(); - - if (update_callback != LUA_NOREF) { - lua_rawgeti(L, LUA_REGISTRYINDEX, update_callback); - lua_pushnumber(L, dt); - int result = honey_lua_pcall(L, 1, 0); - if (result != 0) { - const char* error = lua_tostring(L, -1); - fprintf(stderr, "[honey] ERROR: %s\n", error); - glfwSetWindowShouldClose(window, true); - } - } - - if (drawTime > 0.016) { - drawTime -= 0.016; - - if (draw_callback != LUA_NOREF) { - lua_rawgeti(L, LUA_REGISTRYINDEX, draw_callback); - int result = honey_lua_pcall(L, 0, 0); - if (result != 0) { - const char* error = lua_tostring(L, -1); - fprintf(stderr, "[honey] ERROR: %s\n", error); - glfwSetWindowShouldClose(window, true); - } - } - - glfwSwapBuffers(window); - } - } - - lua_close(L); - - glfwTerminate(); - return true; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_get_callback(lua_State* L, char* callback) -{ - lua_getglobal(L, "honey"); - lua_getfield(L, -1, callback); - - int ref = LUA_NOREF; - - if (lua_isfunction(L, -1)) - ref = luaL_ref(L, LUA_REGISTRYINDEX); - else - lua_pop(L, 1); - lua_pop(L, 1); - - return ref; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_set_framebuffer(lua_State* L) -{ - int framebuffer; - honey_lua_parse_arguments(L, 1, 1, HONEY_INTEGER, &framebuffer); - glBindFramebuffer(GL_FRAMEBUFFER, framebuffer); - return 0; -} diff --git a/src/honey.h b/src/honey.h deleted file mode 100644 index 11d0a2f..0000000 --- a/src/honey.h +++ /dev/null @@ -1,77 +0,0 @@ -#ifndef HONEY_ENGINE_H -#define HONEY_ENGINE_H - -/** @file honey.h - * - * @brief Defines the basic loading and callback functions. -*/ - -#include "common.h" - -#include "cairo_bindings.h" -#include "glm_bindings.h" -#include "input.h" -#include "mesh.h" -#include "shader.h" -#include "texture.h" -#include "window.h" - -/** @struct Helper struct to wrap command-line options. */ -typedef struct { - bool verbose; - char* script_directory; - char* logfile; -} honey_options; - -/** @brief Print usage help for honey. */ -void honey_print_help(); - -/** @brief Parse command-line options for honey. - * - * This function returns false if the -h option was passed, for simplicity's sake. - * - * @param[in] argc The number of arguments passed to honey. - * @param[in] argv Argument string array. - * @param[out] options Pointer to the honey_options struct to populate. - * - * @returns true if parsing was successful and execution should continue; - * false otherwise. - */ -bool honey_parse_options(honey_options* options, int argc, char** argv); - -/** @brief Initialize Honey and set up lua bindings. - * - * @param[out] L The lua state with honey configured. - * @param[out] window The GLFW window configured by honey. - * Also accessible from lua as honey.window.glfw_window. - * - * @returns true on a success; false otherwise. - */ -bool honey_setup(lua_State** L); - -/** @brief The main game loop. - * - * @param[in] L The lua state honey was initialized in. - * @param[in] opts The honey_options struct previously populated by honey_parse_options(). - */ -bool honey_run(lua_State* L, honey_options opts); - -/** @brief Get a registry reference to a given honey callback. - * - * @param[in] L The lua state to find the reference in. - * @param[in] callback Name of the callback to find. - * - * @returns Registry reference to the function if it exists; - * LUA_NOREF otherwise. - */ -int honey_get_callback(lua_State* L, char* callback); - -/** @brief Set the current render target. - * - * @param[in] framebuffer The framebuffer to target, or 0 to target the window's framebuffer. - * - * @returns Nothing. - */ -int honey_set_framebuffer(lua_State* L); - -#endif diff --git a/src/honey_lua.c b/src/honey_lua.c deleted file mode 100644 index 4b83f27..0000000 --- a/src/honey_lua.c +++ /dev/null @@ -1,634 +0,0 @@ -#include "common.h" - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Helper structs - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -struct argument_pair { - honey_lua_type type; - void* ptr; -}; - -struct argument_list { - unsigned int length; - struct argument_pair* args; -}; - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Lua binding helper function declarations - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -/* string must be able to hold at least 16 characters. */ -static const char* type_to_string(honey_lua_type type); - -static bool check_argument(lua_State* L, - honey_lua_type type, - int index); - -static void get_argument(lua_State* L, - void* destination, - honey_lua_type type, - int index); - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * String wrangling helpers - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -honey_result honey_format_string(char** string, - char* format_string, - ...) -{ - honey_result res; - va_list args, args_; - va_start(args, format_string); - va_copy(args_, args); - - int string_size = vsnprintf(NULL, 0, format_string, args_); - va_end(args_); - *string = malloc((string_size+1) * sizeof(char)); - if (*string == NULL) - res = HONEY_MEMORY_ALLOCATION_ERROR; - else { - vsnprintf(*string, string_size+1, format_string, args); - res = HONEY_OK; - } - - va_end(args); - - return res; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -void honey_lua_throw_error(lua_State* L, - char* format_string, - ...) -{ - honey_result result; - va_list args, args_; - va_start(args, format_string); - va_copy(args_, args); - - int string_size = vsnprintf(NULL, 0, format_string, args_); - va_end(args_); - - char* string = malloc((string_size + 1) * sizeof(char)); - if (string == NULL) - lua_pushstring(L, "there was an error allocating memory for an error message"); - else { - vsnprintf(string, string_size + 1, format_string, args); - lua_pushstring(L, string); - free(string); - } - lua_error(L); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -bool honey_string_to_enum(int* k, char* string, int n, ...) -{ - va_list args; - va_start(args, n); - - bool success = false; - - for (int i=0; i<n; i++) { - const char* str = va_arg(args, const char*); - int val = va_arg(args, const char*); - - if (strcmp(str, string) == 0) { - *k = val; - success = true; - break; - } - } - - va_end(args); - return success; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -bool honey_enum_to_string(char** string, int k, int n, ...) -{ - va_list args; - va_start(args, n); - - bool success = false; - - for (int i=0; i<n; i++) { - const char* str = va_arg(args, const char*); - int val = va_arg(args, const char*); - - if (k == val) { - *string = str; - success = true; - break; - } - } - - va_end(args); - return success; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Argument parsing functions - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -static bool check_arg_list(lua_State* L, - struct argument_list arg_list) -{ - if (arg_list.length != lua_gettop(L)) - return false; - struct argument_pair* args = arg_list.args; - for (int i=0; i<arg_list.length; i++) { - if (!check_argument(L, args[i].type, i+1)) - return false; - } - return true; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void arg_list_to_string(char** string, - struct argument_list arg_list) -{ - struct argument_pair* args = arg_list.args; - - size_t size = sizeof(char) * (18*arg_list.length + 5); - *string = malloc(size); - - memcpy(*string, "(", 2); - - for (int i=0; i<arg_list.length; i++) { - strcat(*string, type_to_string(args[i].type)); - if (i != arg_list.length-1) - strcat(*string, ", "); - } - strcat(*string, ")"); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void arg_lists_to_string(char** string, - int n, - struct argument_list* arg_lists) -{ - unsigned int size = 0; - for (int i=0; i<n; i++) - size += 18*arg_lists[i].length + 5; - - *string = calloc(size, sizeof(char)); - - char* arg_list_string; - - for (int i=0; i<n; i++) { - arg_list_to_string(&arg_list_string, arg_lists[i]); - strcat(*string, arg_list_string); - free(arg_list_string); - if (i != n-1) - strcat(*string, "\n"); - } -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void arguments_to_string(lua_State* L, char** string) -{ - unsigned int argc = lua_gettop(L); - - size_t size = sizeof(char) * (18*argc + 5); - *string = malloc(size); - - memcpy(*string, "(", 2); - - char type_string[16]; - for (int i=0; i<argc; i++) { - int type = lua_type(L, i+1); - strncat(*string, lua_typename(L, type), 16*sizeof(char)); - if (i != argc-1) - strncat(*string, ", ", 4*sizeof(char)); - } - strncat(*string, ")", 4); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void get_arg_list(lua_State* L, - struct argument_list arg_list) -{ - struct argument_pair* args = arg_list.args; - for (int i=0; i<arg_list.length; i++) { - get_argument(L, args[i].ptr, args[i].type, i+1); - } -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_lua_parse_arguments(lua_State* L, unsigned int n, ...) -{ - struct argument_list* arg_lists = malloc(n * sizeof(struct argument_list)); - if (arg_lists == NULL) - honey_lua_throw_error(L, "failed to allocate memory for argument parsing!"); - - va_list args; - va_start(args, n); - - for (int i=0; i<n; i++) { - arg_lists[i].length = va_arg(args, int); - arg_lists[i].args = malloc(arg_lists[i].length * sizeof(struct argument_pair)); - if (arg_lists[i].args == NULL) - honey_lua_throw_error(L, "failed to allocate memory for argument parsing!"); - - for (int j=0; j<arg_lists[i].length; j++) { - honey_lua_type type = va_arg(args, honey_lua_type); - void* destination = va_arg(args, void*); - - arg_lists[i].args[j].type = type; - arg_lists[i].args[j].ptr = destination; - } - } - - va_end(args); - - int index = 0; - - for (; index<n; index++) { - if (check_arg_list(L, arg_lists[index])) { - get_arg_list(L, arg_lists[index]); - break; - } - } - - if (index == n) { - char* arg_lists_str, *argv, *error; - arg_lists_to_string(&arg_lists_str, n, arg_lists); - arguments_to_string(L, &argv); - honey_format_string - (&error, - "expected arguments of the form\n%s\nbut received\n%s", - arg_lists_str, argv); - lua_pushstring(L, error); - free(arg_lists_str); - free(argv); - free(error); - lua_error(L); - } - - - for (int i=0; i<n; i++) - free(arg_lists[i].args); - free(arg_lists); - - return index; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -void honey_lua_parse_params(lua_State* L, int n, int m, ...) -{ - int table_index = lua_gettop(L); - - va_list args; - va_start(args, m); - - for (int i=0; i<n; i++) { - honey_lua_type type = va_arg(args, honey_lua_type); - const char* param = va_arg(args, const char*); - void (*function)(lua_State*, void*) = va_arg(args, void (*)(lua_State*, void*)); - void* data = va_arg(args, void*); - - lua_getfield(L, table_index, param); - if (lua_isnil(L, -1)) { - if (n < m) - honey_lua_throw_error - (L, "required parameter '%s' was not found in param table!", param); - } - else { - if (!check_argument(L, type, -1)) - honey_lua_throw_error - (L, "parameter '%s' must be of type %s; got %s instead", - param, type_to_string(type), lua_typename(L, lua_type(L, -1))); - - function(L, data); - } - lua_pop(L, 1); - } - - va_end(args); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Table creation functions - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -static void build_table_recursively(lua_State* L, - unsigned int n, - va_list args) -{ - lua_createtable(L, 0, n); - - for (int i=0; i<n; i++) { - honey_lua_type type = va_arg(args, honey_lua_type); - char* name = va_arg(args, char*); - switch(type) { - case HONEY_INTEGER: - lua_pushinteger(L, va_arg(args, int)); - break; - - case HONEY_NUMBER: - lua_pushnumber(L, va_arg(args, double)); - break; - - case HONEY_STRING: - lua_pushstring(L, va_arg(args, char*)); - break; - - case HONEY_FUNCTION: - lua_pushcfunction(L, va_arg(args, int (*)(lua_State* L))); - break; - - case HONEY_TABLE: - build_table_recursively(L, va_arg(args, int), args); - break; - - case HONEY_NIL: - lua_pushnil(L); - break; - - case HONEY_USERDATA: - /* cannot push userdata from C, skip */ - continue; - - case HONEY_LIGHTUSERDATA: - lua_pushlightuserdata(L, va_arg(args, void*)); - break; - - default: - // this should never happen - break; - } - lua_setfield(L, -2, name); - } -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -void honey_lua_create_table(lua_State* L, - unsigned int n_elements, - ...) -{ - va_list args; - va_start(args, n_elements); - build_table_recursively(L, n_elements, args); - va_end(args); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Lua pcall wrapping - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -int honey_lua_traceback(lua_State* L) -{ - if (!lua_isstring(L, 1)) - /* 'message' is not a string, keep intact. */ - return 1; - - lua_getglobal(L, "debug"); - if (!lua_istable(L, -1)) { - lua_pop(L, 1); - return 1; - } - - lua_getfield(L, -1, "traceback"); - if (!lua_isfunction(L, -1)) { - lua_pop(L, 2); - return 1; - } - - lua_pushvalue(L, 1); - lua_pushinteger(L, 2); - lua_call(L, 2, 1); - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_lua_pcall(lua_State* L, int nargs, int nret) -{ - int traceback_pos = lua_gettop(L) - nargs; - lua_pushcfunction(L, honey_lua_traceback); - lua_insert(L, traceback_pos); - - int result = lua_pcall(L, nargs, nret, traceback_pos); - lua_remove(L, traceback_pos); - return result; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_exit(lua_State* L) -{ - if (honey_window_info_ref == LUA_NOREF || - honey_window_info_ref == LUA_REFNIL) { - lua_pushstring(L, "Window information is not set!"); - lua_error(L); - } - - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_window_info_ref); - honey_window_information* info = lua_touserdata(L, -1); - lua_pop(L, 1); - - glfwSetWindowShouldClose(info->window, true); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Lua binding helper function definitions - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -/* string must be able to hold at least 16 characters. */ -static const char* type_to_string(honey_lua_type type) -{ - switch(type) { - case HONEY_BOOLEAN: - return "boolean"; - - case HONEY_INTEGER: - return "integer"; - - case HONEY_NUMBER: - return "number"; - - case HONEY_STRING: - return "string"; - - case HONEY_FUNCTION: - return "function"; - - case HONEY_TABLE: - return "table"; - - case HONEY_NIL: - return "nil"; - - case HONEY_USERDATA: - return "userdata"; - - case HONEY_LIGHTUSERDATA: - return "light userdata"; - - case HONEY_ANY: - return "any"; - - default: - return "ERROR"; - } -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static bool check_argument(lua_State* L, - honey_lua_type type, - int index) -{ - switch(type) { - case HONEY_BOOLEAN: - if (!lua_isboolean(L, index)) - return false; - break; - - case HONEY_INTEGER: - case HONEY_NUMBER: - if (!lua_isnumber(L, index)) - return false; - break; - - case HONEY_STRING: - if (!lua_isstring(L, index)) - return false; - break; - - case HONEY_FUNCTION: - if (!lua_isfunction(L, index)) - return false; - break; - - case HONEY_TABLE: - if (!lua_istable(L, index)) - return false; - break; - - case HONEY_NIL: - if (!lua_isnil(L, index)) - return false; - break; - - case HONEY_USERDATA: - if (!lua_isuserdata(L, index)) - return false; - break; - - case HONEY_LIGHTUSERDATA: - if (!lua_islightuserdata(L, index)) - return false; - break; - - default: - break; - } - - - return true; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void get_argument(lua_State* L, - void* destination, - honey_lua_type type, - int index) -{ - switch (type) { - case HONEY_BOOLEAN: - { - bool* result = destination; - *result = lua_toboolean(L, index); - } - break; - - case HONEY_INTEGER: - { - int* result = destination; - *result = lua_tointeger(L, index); - } - break; - - case HONEY_NUMBER: - { - float* result = destination; - *result = lua_tonumber(L, index); - } - break; - - case HONEY_STRING: - { - char** result = destination; - *result = (char*) lua_tostring(L, index); - } - break; - - case HONEY_TABLE: - break; - - case HONEY_FUNCTION: - break; - - case HONEY_NIL: - break; - - case HONEY_USERDATA: - { - void** result = destination; - *result = lua_touserdata(L, index); - } - break; - - case HONEY_LIGHTUSERDATA: - { - void** result = destination; - *result = lua_touserdata(L, index); - } - break; - - case HONEY_ANY: - break; - - default: - /* should never get here! */ - break; - } -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/src/input.c b/src/input.c deleted file mode 100644 index ca5fc05..0000000 --- a/src/input.c +++ /dev/null @@ -1,1339 +0,0 @@ -#include "input.h" - -int honey_mouse_movement_callback_ref = LUA_NOREF; -int honey_mouse_movement_callback_data_ref = LUA_NOREF; - -static void honey_glfw_mouse_movement_callback(honey_window window, - double x_pos, double y_pos); -static void honey_glfw_keyboard_callback(honey_window window, - int key, int scancode, - int action, int mods); - -void honey_setup_keyboard() -{ - memset(honey_key_states, 0, sizeof(honey_key_states)); - memset(honey_key_callbacks, LUA_NOREF, sizeof(honey_key_callbacks)); - memset(honey_key_callbacks_data, LUA_NOREF, sizeof(honey_key_callbacks_data)); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -void honey_setup_input(lua_State* L) -{ - honey_setup_keyboard(); - - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_window_info_ref); - honey_window_information* info = lua_touserdata(L, -1); - lua_pop(L, 1); - - glfwSetKeyCallback(info->window, honey_glfw_keyboard_callback); - glfwSetCursorPosCallback(info->window, honey_glfw_mouse_movement_callback); - - honey_lua_create_table(L, 2, - HONEY_TABLE, "key", HONEY_N_KEYS+4, - - /* key table */ - HONEY_INTEGER, "unknown", HONEY_KEY_UNKNOWN, - HONEY_INTEGER, "space", HONEY_KEY_SPACE, - HONEY_INTEGER, "apostrophe", HONEY_KEY_APOSTROPHE, - HONEY_INTEGER, "comma", HONEY_KEY_COMMA, - HONEY_INTEGER, "minus", HONEY_KEY_MINUS, - HONEY_INTEGER, "period", HONEY_KEY_PERIOD, - HONEY_INTEGER, "slash", HONEY_KEY_SLASH, - HONEY_INTEGER, "0", HONEY_KEY_0, - HONEY_INTEGER, "1", HONEY_KEY_1, - HONEY_INTEGER, "2", HONEY_KEY_2, - HONEY_INTEGER, "3", HONEY_KEY_3, - HONEY_INTEGER, "4", HONEY_KEY_4, - HONEY_INTEGER, "5", HONEY_KEY_5, - HONEY_INTEGER, "6", HONEY_KEY_6, - HONEY_INTEGER, "7", HONEY_KEY_7, - HONEY_INTEGER, "8", HONEY_KEY_8, - HONEY_INTEGER, "9", HONEY_KEY_9, - HONEY_INTEGER, "semicolon", HONEY_KEY_SEMICOLON, - HONEY_INTEGER, "equal", HONEY_KEY_EQUAL, - HONEY_INTEGER, "a", HONEY_KEY_A, - HONEY_INTEGER, "b", HONEY_KEY_B, - HONEY_INTEGER, "c", HONEY_KEY_C, - HONEY_INTEGER, "d", HONEY_KEY_D, - HONEY_INTEGER, "e", HONEY_KEY_E, - HONEY_INTEGER, "f", HONEY_KEY_F, - HONEY_INTEGER, "g", HONEY_KEY_G, - HONEY_INTEGER, "h", HONEY_KEY_H, - HONEY_INTEGER, "i", HONEY_KEY_I, - HONEY_INTEGER, "j", HONEY_KEY_J, - HONEY_INTEGER, "k", HONEY_KEY_K, - HONEY_INTEGER, "l", HONEY_KEY_L, - HONEY_INTEGER, "m", HONEY_KEY_M, - HONEY_INTEGER, "n", HONEY_KEY_N, - HONEY_INTEGER, "o", HONEY_KEY_O, - HONEY_INTEGER, "p", HONEY_KEY_P, - HONEY_INTEGER, "q", HONEY_KEY_Q, - HONEY_INTEGER, "r", HONEY_KEY_R, - HONEY_INTEGER, "s", HONEY_KEY_S, - HONEY_INTEGER, "t", HONEY_KEY_T, - HONEY_INTEGER, "u", HONEY_KEY_U, - HONEY_INTEGER, "v", HONEY_KEY_V, - HONEY_INTEGER, "w", HONEY_KEY_W, - HONEY_INTEGER, "x", HONEY_KEY_X, - HONEY_INTEGER, "y", HONEY_KEY_Y, - HONEY_INTEGER, "z", HONEY_KEY_Z, - HONEY_INTEGER, "left_bracket", HONEY_KEY_LEFT_BRACKET, - HONEY_INTEGER, "backslash", HONEY_KEY_BACKSLASH, - HONEY_INTEGER, "right_bracket", HONEY_KEY_RIGHT_BRACKET, - HONEY_INTEGER, "grave_accent", HONEY_KEY_GRAVE_ACCENT, - HONEY_INTEGER, "world_1", HONEY_KEY_WORLD_1, - HONEY_INTEGER, "world_2", HONEY_KEY_WORLD_2, - HONEY_INTEGER, "escape", HONEY_KEY_ESCAPE, - HONEY_INTEGER, "enter", HONEY_KEY_ENTER, - HONEY_INTEGER, "tab", HONEY_KEY_TAB, - HONEY_INTEGER, "backspace", HONEY_KEY_BACKSPACE, - HONEY_INTEGER, "insert", HONEY_KEY_INSERT, - HONEY_INTEGER, "delete", HONEY_KEY_DELETE, - HONEY_INTEGER, "right", HONEY_KEY_RIGHT, - HONEY_INTEGER, "left", HONEY_KEY_LEFT, - HONEY_INTEGER, "down", HONEY_KEY_DOWN, - HONEY_INTEGER, "up", HONEY_KEY_UP, - HONEY_INTEGER, "page_up", HONEY_KEY_PAGE_UP, - HONEY_INTEGER, "page_down", HONEY_KEY_PAGE_DOWN, - HONEY_INTEGER, "home", HONEY_KEY_HOME, - HONEY_INTEGER, "end", HONEY_KEY_END, - HONEY_INTEGER, "caps_lock", HONEY_KEY_CAPS_LOCK, - HONEY_INTEGER, "scroll_lock", HONEY_KEY_SCROLL_LOCK, - HONEY_INTEGER, "num_lock", HONEY_KEY_NUM_LOCK, - HONEY_INTEGER, "print_screen", HONEY_KEY_PRINT_SCREEN, - HONEY_INTEGER, "pause", HONEY_KEY_PAUSE, - HONEY_INTEGER, "f1", HONEY_KEY_F1, - HONEY_INTEGER, "f2", HONEY_KEY_F2, - HONEY_INTEGER, "f3", HONEY_KEY_F3, - HONEY_INTEGER, "f4", HONEY_KEY_F4, - HONEY_INTEGER, "f5", HONEY_KEY_F5, - HONEY_INTEGER, "f6", HONEY_KEY_F6, - HONEY_INTEGER, "f7", HONEY_KEY_F7, - HONEY_INTEGER, "f8", HONEY_KEY_F8, - HONEY_INTEGER, "f9", HONEY_KEY_F9, - HONEY_INTEGER, "f10", HONEY_KEY_F10, - HONEY_INTEGER, "f11", HONEY_KEY_F11, - HONEY_INTEGER, "f12", HONEY_KEY_F12, - HONEY_INTEGER, "f13", HONEY_KEY_F13, - HONEY_INTEGER, "f14", HONEY_KEY_F14, - HONEY_INTEGER, "f15", HONEY_KEY_F15, - HONEY_INTEGER, "f16", HONEY_KEY_F16, - HONEY_INTEGER, "f17", HONEY_KEY_F17, - HONEY_INTEGER, "f18", HONEY_KEY_F18, - HONEY_INTEGER, "f19", HONEY_KEY_F19, - HONEY_INTEGER, "f20", HONEY_KEY_F20, - HONEY_INTEGER, "f21", HONEY_KEY_F21, - HONEY_INTEGER, "f22", HONEY_KEY_F22, - HONEY_INTEGER, "f23", HONEY_KEY_F23, - HONEY_INTEGER, "f24", HONEY_KEY_F24, - HONEY_INTEGER, "f25", HONEY_KEY_F25, - HONEY_INTEGER, "kp_0", HONEY_KEY_KP_0, - HONEY_INTEGER, "kp_1", HONEY_KEY_KP_1, - HONEY_INTEGER, "kp_2", HONEY_KEY_KP_2, - HONEY_INTEGER, "kp_3", HONEY_KEY_KP_3, - HONEY_INTEGER, "kp_4", HONEY_KEY_KP_4, - HONEY_INTEGER, "kp_5", HONEY_KEY_KP_5, - HONEY_INTEGER, "kp_6", HONEY_KEY_KP_6, - HONEY_INTEGER, "kp_7", HONEY_KEY_KP_7, - HONEY_INTEGER, "kp_8", HONEY_KEY_KP_8, - HONEY_INTEGER, "kp_9", HONEY_KEY_KP_9, - HONEY_INTEGER, "kp_decimal", HONEY_KEY_KP_DECIMAL, - HONEY_INTEGER, "kp_divide", HONEY_KEY_KP_DIVIDE, - HONEY_INTEGER, "kp_multiply", HONEY_KEY_KP_MULTIPLY, - HONEY_INTEGER, "kp_subtract", HONEY_KEY_KP_SUBTRACT, - HONEY_INTEGER, "kp_add", HONEY_KEY_KP_ADD, - HONEY_INTEGER, "kp_enter", HONEY_KEY_KP_ENTER, - HONEY_INTEGER, "kp_equal", HONEY_KEY_KP_EQUAL, - HONEY_INTEGER, "left_shift", HONEY_KEY_LEFT_SHIFT, - HONEY_INTEGER, "left_control", HONEY_KEY_LEFT_CONTROL, - HONEY_INTEGER, "left_alt", HONEY_KEY_LEFT_ALT, - HONEY_INTEGER, "left_super", HONEY_KEY_LEFT_SUPER, - HONEY_INTEGER, "right_shift", HONEY_KEY_RIGHT_SHIFT, - HONEY_INTEGER, "right_control", HONEY_KEY_RIGHT_CONTROL, - HONEY_INTEGER, "right_alt", HONEY_KEY_RIGHT_ALT, - HONEY_INTEGER, "right_super", HONEY_KEY_RIGHT_SUPER, - HONEY_INTEGER, "menu", HONEY_KEY_MENU, - HONEY_FUNCTION, "is_down", honey_key_down, - HONEY_FUNCTION, "bind", honey_key_bind, - HONEY_FUNCTION, "unbind", honey_key_unbind, - HONEY_FUNCTION, "unbind_all", honey_key_unbind_all, - - HONEY_TABLE, "mouse", 4, - - /* mouse table */ - HONEY_TABLE, "mode", 3, - HONEY_INTEGER, "normal", HONEY_MOUSE_MODE_NORMAL, - HONEY_INTEGER, "hidden", HONEY_MOUSE_MODE_HIDDEN, - HONEY_INTEGER, "captured", HONEY_MOUSE_MODE_CAPTURED, - HONEY_FUNCTION, "set_mode", honey_mouse_set_mode, - HONEY_FUNCTION, "bind_movement", honey_mouse_movement_bind, - HONEY_FUNCTION, "unbind_movement", honey_mouse_movement_unbind); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_key_down(lua_State* L) -{ - int key; - honey_lua_parse_arguments(L, 1, 1, HONEY_INTEGER, &key); - - if (key < 0 || key >= HONEY_N_KEYS) - lua_pushboolean(L, false); - else - lua_pushboolean(L, honey_key_states[key]); - - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_key_bind(lua_State* L) -{ - int key; - - int choice = honey_lua_parse_arguments - (L, 2, - 2, HONEY_INTEGER, &key, HONEY_FUNCTION, NULL, - 3, HONEY_INTEGER, &key, HONEY_FUNCTION, NULL, HONEY_ANY, NULL); - - lua_pushvalue(L, 2); - int callback = luaL_ref(L, LUA_REGISTRYINDEX); - int data = LUA_NOREF; - if (choice == 1) { /* callback data provided */ - lua_pushvalue(L, 3); - data = luaL_ref(L, LUA_REGISTRYINDEX); - } - - /* avoid potential memory leak */ - lua_pushcfunction(L, honey_key_unbind); - lua_pushinteger(L, key); - honey_lua_pcall(L, 1, 0); - - if (key >= 0 && key < HONEY_N_KEYS) { - honey_key_callbacks[key] = callback; - honey_key_callbacks_data[key] = data; - } - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_key_unbind(lua_State* L) -{ - int key; - honey_lua_parse_arguments - (L, 1, - 1, HONEY_INTEGER, &key); - - if (key >=0 && key < HONEY_N_KEYS) { - luaL_unref(L, LUA_REGISTRYINDEX, honey_key_callbacks[key]); - luaL_unref(L, LUA_REGISTRYINDEX, honey_key_callbacks_data[key]); - - honey_key_callbacks[key] = LUA_NOREF; - honey_key_callbacks_data[key] = LUA_NOREF; - } - else - honey_lua_throw_error(L, - "'%d' is not a valid keycode", - key); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_key_unbind_all(lua_State* L) -{ - for (int i=0; i<HONEY_N_KEYS; i++) { - luaL_unref(L, LUA_REGISTRYINDEX, honey_key_callbacks[i]); - luaL_unref(L, LUA_REGISTRYINDEX, honey_key_callbacks_data[i]); - - honey_key_callbacks[i] = LUA_NOREF; - honey_key_callbacks_data[i] = LUA_NOREF; - } -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_mouse_set_mode(lua_State* L) -{ - int cursor_mode; - - honey_lua_parse_arguments - (L, 1, - 1, HONEY_INTEGER, &cursor_mode); - - if (honey_window_info_ref == LUA_NOREF || - honey_window_info_ref == LUA_REFNIL) { - lua_pushstring(L, "ERROR: no window set!"); - lua_error(L); - } - - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_window_info_ref); - honey_window_information* info = lua_touserdata(L, -1); - - glfwSetInputMode(info->window, GLFW_CURSOR, cursor_mode); - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_mouse_movement_bind(lua_State* L) -{ - int choice = honey_lua_parse_arguments - (L, 2, - 1, HONEY_FUNCTION, NULL, - 2, HONEY_FUNCTION, NULL, HONEY_ANY, NULL); - - honey_mouse_movement_unbind(L); /* avoid memory leaks! */ - - lua_pushvalue(L, 1); - honey_mouse_movement_callback_ref = luaL_ref(L, LUA_REGISTRYINDEX); - if (choice == 1) { - lua_pushvalue(L, 2); - honey_mouse_movement_callback_data_ref = luaL_ref(L, LUA_REGISTRYINDEX); - } - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_mouse_movement_unbind(lua_State* L) -{ - int callback = honey_mouse_movement_callback_ref; - int data = honey_mouse_movement_callback_data_ref; - - if (callback != LUA_NOREF || callback != LUA_REFNIL) - luaL_unref(L, LUA_REGISTRYINDEX, callback); - - if (data != LUA_NOREF || data != LUA_REFNIL) - luaL_unref(L, LUA_REGISTRYINDEX, data); - - honey_mouse_movement_callback_ref = LUA_NOREF; - honey_mouse_movement_callback_data_ref = LUA_NOREF; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void honey_glfw_mouse_movement_callback(honey_window window, - double x_pos, double y_pos) -{ - int callback = honey_mouse_movement_callback_ref; - int data = honey_mouse_movement_callback_data_ref; - lua_State* L = glfwGetWindowUserPointer(window); - - if (callback == LUA_NOREF || callback == LUA_REFNIL) - return; - - lua_rawgeti(L, LUA_REGISTRYINDEX, callback); - lua_pushnumber(L, x_pos); - lua_pushnumber(L, y_pos); - - if (data == LUA_NOREF || data == LUA_REFNIL) - lua_pushnil(L); - else - lua_rawgeti(L, LUA_REGISTRYINDEX, data); - - honey_lua_pcall(L, 3, 0); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void execute_lua_key_callback(lua_State* L, int callback, int action, int data) -{ - if (callback != LUA_NOREF) { - lua_rawgeti(L, LUA_REGISTRYINDEX, callback); - lua_pushinteger(L, action); - if (data != LUA_REFNIL) - lua_rawgeti(L, LUA_REGISTRYINDEX, data); - else - lua_pushnil(L); - honey_lua_pcall(L, 2, 0); - } -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void honey_glfw_keyboard_callback(honey_window window, - int key, int scancode, - int action, int mods) -{ - int callback, data; - lua_State* L = glfwGetWindowUserPointer(window); - switch (key) { - case GLFW_KEY_UNKNOWN: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_UNKNOWN] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_UNKNOWN] = 0; } - callback = honey_key_callbacks[HONEY_KEY_UNKNOWN]; - data = honey_key_callbacks_data[HONEY_KEY_UNKNOWN]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_SPACE: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_SPACE] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_SPACE] = 0; } - callback = honey_key_callbacks[HONEY_KEY_SPACE]; - data = honey_key_callbacks_data[HONEY_KEY_SPACE]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_APOSTROPHE: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_APOSTROPHE] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_APOSTROPHE] = 0; } - callback = honey_key_callbacks[HONEY_KEY_APOSTROPHE]; - data = honey_key_callbacks_data[HONEY_KEY_APOSTROPHE]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_COMMA: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_COMMA] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_COMMA] = 0; } - callback = honey_key_callbacks[HONEY_KEY_COMMA]; - data = honey_key_callbacks_data[HONEY_KEY_COMMA]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_MINUS: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_MINUS] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_MINUS] = 0; } - callback = honey_key_callbacks[HONEY_KEY_MINUS]; - data = honey_key_callbacks_data[HONEY_KEY_MINUS]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_PERIOD: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_PERIOD] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_PERIOD] = 0; } - callback = honey_key_callbacks[HONEY_KEY_PERIOD]; - data = honey_key_callbacks_data[HONEY_KEY_PERIOD]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_SLASH: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_SLASH] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_SLASH] = 0; } - callback = honey_key_callbacks[HONEY_KEY_SLASH]; - data = honey_key_callbacks_data[HONEY_KEY_SLASH]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_0: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_0] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_0] = 0; } - callback = honey_key_callbacks[HONEY_KEY_0]; - data = honey_key_callbacks_data[HONEY_KEY_0]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_1: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_1] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_1] = 0; } - callback = honey_key_callbacks[HONEY_KEY_1]; - data = honey_key_callbacks_data[HONEY_KEY_1]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_2: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_2] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_2] = 0; } - callback = honey_key_callbacks[HONEY_KEY_2]; - data = honey_key_callbacks_data[HONEY_KEY_2]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_3: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_3] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_3] = 0; } - callback = honey_key_callbacks[HONEY_KEY_3]; - data = honey_key_callbacks_data[HONEY_KEY_3]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_4: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_4] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_4] = 0; } - callback = honey_key_callbacks[HONEY_KEY_4]; - data = honey_key_callbacks_data[HONEY_KEY_4]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_5: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_5] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_5] = 0; } - callback = honey_key_callbacks[HONEY_KEY_5]; - data = honey_key_callbacks_data[HONEY_KEY_5]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_6: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_6] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_6] = 0; } - callback = honey_key_callbacks[HONEY_KEY_6]; - data = honey_key_callbacks_data[HONEY_KEY_6]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_7: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_7] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_7] = 0; } - callback = honey_key_callbacks[HONEY_KEY_7]; - data = honey_key_callbacks_data[HONEY_KEY_7]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_8: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_8] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_8] = 0; } - callback = honey_key_callbacks[HONEY_KEY_8]; - data = honey_key_callbacks_data[HONEY_KEY_8]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_9: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_9] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_9] = 0; } - callback = honey_key_callbacks[HONEY_KEY_9]; - data = honey_key_callbacks_data[HONEY_KEY_9]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_SEMICOLON: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_SEMICOLON] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_SEMICOLON] = 0; } - callback = honey_key_callbacks[HONEY_KEY_SEMICOLON]; - data = honey_key_callbacks_data[HONEY_KEY_SEMICOLON]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_EQUAL: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_EQUAL] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_EQUAL] = 0; } - callback = honey_key_callbacks[HONEY_KEY_EQUAL]; - data = honey_key_callbacks_data[HONEY_KEY_EQUAL]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_A: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_A] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_A] = 0; } - callback = honey_key_callbacks[HONEY_KEY_A]; - data = honey_key_callbacks_data[HONEY_KEY_A]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_B: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_B] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_B] = 0; } - callback = honey_key_callbacks[HONEY_KEY_B]; - data = honey_key_callbacks_data[HONEY_KEY_B]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_C: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_C] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_C] = 0; } - callback = honey_key_callbacks[HONEY_KEY_C]; - data = honey_key_callbacks_data[HONEY_KEY_C]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_D: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_D] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_D] = 0; } - callback = honey_key_callbacks[HONEY_KEY_D]; - data = honey_key_callbacks_data[HONEY_KEY_D]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_E: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_E] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_E] = 0; } - callback = honey_key_callbacks[HONEY_KEY_E]; - data = honey_key_callbacks_data[HONEY_KEY_E]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F]; - data = honey_key_callbacks_data[HONEY_KEY_F]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_G: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_G] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_G] = 0; } - callback = honey_key_callbacks[HONEY_KEY_G]; - data = honey_key_callbacks_data[HONEY_KEY_G]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_H: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_H] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_H] = 0; } - callback = honey_key_callbacks[HONEY_KEY_H]; - data = honey_key_callbacks_data[HONEY_KEY_H]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_I: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_I] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_I] = 0; } - callback = honey_key_callbacks[HONEY_KEY_I]; - data = honey_key_callbacks_data[HONEY_KEY_I]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_J: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_J] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_J] = 0; } - callback = honey_key_callbacks[HONEY_KEY_J]; - data = honey_key_callbacks_data[HONEY_KEY_J]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_K: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_K] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_K] = 0; } - callback = honey_key_callbacks[HONEY_KEY_K]; - data = honey_key_callbacks_data[HONEY_KEY_K]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_L: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_L] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_L] = 0; } - callback = honey_key_callbacks[HONEY_KEY_L]; - data = honey_key_callbacks_data[HONEY_KEY_L]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_M: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_M] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_M] = 0; } - callback = honey_key_callbacks[HONEY_KEY_M]; - data = honey_key_callbacks_data[HONEY_KEY_M]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_N: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_N] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_N] = 0; } - callback = honey_key_callbacks[HONEY_KEY_N]; - data = honey_key_callbacks_data[HONEY_KEY_N]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_O: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_O] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_O] = 0; } - callback = honey_key_callbacks[HONEY_KEY_O]; - data = honey_key_callbacks_data[HONEY_KEY_O]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_P: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_P] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_P] = 0; } - callback = honey_key_callbacks[HONEY_KEY_P]; - data = honey_key_callbacks_data[HONEY_KEY_P]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_Q: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_Q] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_Q] = 0; } - callback = honey_key_callbacks[HONEY_KEY_Q]; - data = honey_key_callbacks_data[HONEY_KEY_Q]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_R: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_R] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_R] = 0; } - callback = honey_key_callbacks[HONEY_KEY_R]; - data = honey_key_callbacks_data[HONEY_KEY_R]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_S: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_S] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_S] = 0; } - callback = honey_key_callbacks[HONEY_KEY_S]; - data = honey_key_callbacks_data[HONEY_KEY_S]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_T: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_T] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_T] = 0; } - callback = honey_key_callbacks[HONEY_KEY_T]; - data = honey_key_callbacks_data[HONEY_KEY_T]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_U: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_U] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_U] = 0; } - callback = honey_key_callbacks[HONEY_KEY_U]; - data = honey_key_callbacks_data[HONEY_KEY_U]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_V: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_V] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_V] = 0; } - callback = honey_key_callbacks[HONEY_KEY_V]; - data = honey_key_callbacks_data[HONEY_KEY_V]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_W: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_W] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_W] = 0; } - callback = honey_key_callbacks[HONEY_KEY_W]; - data = honey_key_callbacks_data[HONEY_KEY_W]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_X: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_X] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_X] = 0; } - callback = honey_key_callbacks[HONEY_KEY_X]; - data = honey_key_callbacks_data[HONEY_KEY_X]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_Y: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_Y] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_Y] = 0; } - callback = honey_key_callbacks[HONEY_KEY_Y]; - data = honey_key_callbacks_data[HONEY_KEY_Y]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_Z: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_Z] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_Z] = 0; } - callback = honey_key_callbacks[HONEY_KEY_Z]; - data = honey_key_callbacks_data[HONEY_KEY_Z]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_LEFT_BRACKET: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_LEFT_BRACKET] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_LEFT_BRACKET] = 0; } - callback = honey_key_callbacks[HONEY_KEY_LEFT_BRACKET]; - data = honey_key_callbacks_data[HONEY_KEY_LEFT_BRACKET]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_BACKSLASH: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_BACKSLASH] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_BACKSLASH] = 0; } - callback = honey_key_callbacks[HONEY_KEY_BACKSLASH]; - data = honey_key_callbacks_data[HONEY_KEY_BACKSLASH]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_RIGHT_BRACKET: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_RIGHT_BRACKET] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_RIGHT_BRACKET] = 0; } - callback = honey_key_callbacks[HONEY_KEY_RIGHT_BRACKET]; - data = honey_key_callbacks_data[HONEY_KEY_RIGHT_BRACKET]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_GRAVE_ACCENT: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_GRAVE_ACCENT] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_GRAVE_ACCENT] = 0; } - callback = honey_key_callbacks[HONEY_KEY_GRAVE_ACCENT]; - data = honey_key_callbacks_data[HONEY_KEY_GRAVE_ACCENT]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_WORLD_1: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_WORLD_1] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_WORLD_1] = 0; } - callback = honey_key_callbacks[HONEY_KEY_WORLD_1]; - data = honey_key_callbacks_data[HONEY_KEY_WORLD_1]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_WORLD_2: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_WORLD_2] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_WORLD_2] = 0; } - callback = honey_key_callbacks[HONEY_KEY_WORLD_2]; - data = honey_key_callbacks_data[HONEY_KEY_WORLD_2]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_ESCAPE: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_ESCAPE] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_ESCAPE] = 0; } - callback = honey_key_callbacks[HONEY_KEY_ESCAPE]; - data = honey_key_callbacks_data[HONEY_KEY_ESCAPE]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_ENTER: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_ENTER] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_ENTER] = 0; } - callback = honey_key_callbacks[HONEY_KEY_ENTER]; - data = honey_key_callbacks_data[HONEY_KEY_ENTER]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_TAB: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_TAB] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_TAB] = 0; } - callback = honey_key_callbacks[HONEY_KEY_TAB]; - data = honey_key_callbacks_data[HONEY_KEY_TAB]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_BACKSPACE: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_BACKSPACE] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_BACKSPACE] = 0; } - callback = honey_key_callbacks[HONEY_KEY_BACKSPACE]; - data = honey_key_callbacks_data[HONEY_KEY_BACKSPACE]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_INSERT: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_INSERT] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_INSERT] = 0; } - callback = honey_key_callbacks[HONEY_KEY_INSERT]; - data = honey_key_callbacks_data[HONEY_KEY_INSERT]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_DELETE: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_DELETE] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_DELETE] = 0; } - callback = honey_key_callbacks[HONEY_KEY_DELETE]; - data = honey_key_callbacks_data[HONEY_KEY_DELETE]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_RIGHT: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_RIGHT] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_RIGHT] = 0; } - callback = honey_key_callbacks[HONEY_KEY_RIGHT]; - data = honey_key_callbacks_data[HONEY_KEY_RIGHT]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_LEFT: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_LEFT] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_LEFT] = 0; } - callback = honey_key_callbacks[HONEY_KEY_LEFT]; - data = honey_key_callbacks_data[HONEY_KEY_LEFT]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_DOWN: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_DOWN] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_DOWN] = 0; } - callback = honey_key_callbacks[HONEY_KEY_DOWN]; - data = honey_key_callbacks_data[HONEY_KEY_DOWN]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_UP: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_UP] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_UP] = 0; } - callback = honey_key_callbacks[HONEY_KEY_UP]; - data = honey_key_callbacks_data[HONEY_KEY_UP]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_PAGE_UP: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_PAGE_UP] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_PAGE_UP] = 0; } - callback = honey_key_callbacks[HONEY_KEY_PAGE_UP]; - data = honey_key_callbacks_data[HONEY_KEY_PAGE_UP]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_PAGE_DOWN: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_PAGE_DOWN] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_PAGE_DOWN] = 0; } - callback = honey_key_callbacks[HONEY_KEY_PAGE_DOWN]; - data = honey_key_callbacks_data[HONEY_KEY_PAGE_DOWN]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_HOME: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_HOME] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_HOME] = 0; } - callback = honey_key_callbacks[HONEY_KEY_HOME]; - data = honey_key_callbacks_data[HONEY_KEY_HOME]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_END: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_END] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_END] = 0; } - callback = honey_key_callbacks[HONEY_KEY_END]; - data = honey_key_callbacks_data[HONEY_KEY_END]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_CAPS_LOCK: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_CAPS_LOCK] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_CAPS_LOCK] = 0; } - callback = honey_key_callbacks[HONEY_KEY_CAPS_LOCK]; - data = honey_key_callbacks_data[HONEY_KEY_CAPS_LOCK]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_SCROLL_LOCK: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_SCROLL_LOCK] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_SCROLL_LOCK] = 0; } - callback = honey_key_callbacks[HONEY_KEY_SCROLL_LOCK]; - data = honey_key_callbacks_data[HONEY_KEY_SCROLL_LOCK]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_NUM_LOCK: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_NUM_LOCK] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_NUM_LOCK] = 0; } - callback = honey_key_callbacks[HONEY_KEY_NUM_LOCK]; - data = honey_key_callbacks_data[HONEY_KEY_NUM_LOCK]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_PRINT_SCREEN: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_PRINT_SCREEN] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_PRINT_SCREEN] = 0; } - callback = honey_key_callbacks[HONEY_KEY_PRINT_SCREEN]; - data = honey_key_callbacks_data[HONEY_KEY_PRINT_SCREEN]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_PAUSE: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_PAUSE] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_PAUSE] = 0; } - callback = honey_key_callbacks[HONEY_KEY_PAUSE]; - data = honey_key_callbacks_data[HONEY_KEY_PAUSE]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F1: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F1] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F1] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F1]; - data = honey_key_callbacks_data[HONEY_KEY_F1]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F2: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F2] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F2] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F2]; - data = honey_key_callbacks_data[HONEY_KEY_F2]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F3: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F3] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F3] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F3]; - data = honey_key_callbacks_data[HONEY_KEY_F3]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F4: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F4] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F4] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F4]; - data = honey_key_callbacks_data[HONEY_KEY_F4]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F5: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F5] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F5] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F5]; - data = honey_key_callbacks_data[HONEY_KEY_F5]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F6: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F6] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F6] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F6]; - data = honey_key_callbacks_data[HONEY_KEY_F6]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F7: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F7] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F7] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F7]; - data = honey_key_callbacks_data[HONEY_KEY_F7]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F8: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F8] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F8] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F8]; - data = honey_key_callbacks_data[HONEY_KEY_F8]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F9: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F9] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F9] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F9]; - data = honey_key_callbacks_data[HONEY_KEY_F9]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F10: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F10] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F10] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F10]; - data = honey_key_callbacks_data[HONEY_KEY_F10]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F11: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F11] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F11] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F11]; - data = honey_key_callbacks_data[HONEY_KEY_F11]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F12: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F12] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F12] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F12]; - data = honey_key_callbacks_data[HONEY_KEY_F12]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F13: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F13] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F13] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F13]; - data = honey_key_callbacks_data[HONEY_KEY_F13]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F14: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F14] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F14] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F14]; - data = honey_key_callbacks_data[HONEY_KEY_F14]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F15: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F15] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F15] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F15]; - data = honey_key_callbacks_data[HONEY_KEY_F15]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F16: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F16] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F16] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F16]; - data = honey_key_callbacks_data[HONEY_KEY_F16]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F17: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F17] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F17] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F17]; - data = honey_key_callbacks_data[HONEY_KEY_F17]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F18: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F18] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F18] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F18]; - data = honey_key_callbacks_data[HONEY_KEY_F18]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F19: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F19] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F19] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F19]; - data = honey_key_callbacks_data[HONEY_KEY_F19]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F20: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F20] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F20] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F20]; - data = honey_key_callbacks_data[HONEY_KEY_F20]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F21: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F21] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F21] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F21]; - data = honey_key_callbacks_data[HONEY_KEY_F21]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F22: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F22] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F22] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F22]; - data = honey_key_callbacks_data[HONEY_KEY_F22]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F23: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F23] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F23] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F23]; - data = honey_key_callbacks_data[HONEY_KEY_F23]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F24: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F24] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F24] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F24]; - data = honey_key_callbacks_data[HONEY_KEY_F24]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_F25: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_F25] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_F25] = 0; } - callback = honey_key_callbacks[HONEY_KEY_F25]; - data = honey_key_callbacks_data[HONEY_KEY_F25]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_KP_0: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_KP_0] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_KP_0] = 0; } - callback = honey_key_callbacks[HONEY_KEY_KP_0]; - data = honey_key_callbacks_data[HONEY_KEY_KP_0]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_KP_1: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_KP_1] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_KP_1] = 0; } - callback = honey_key_callbacks[HONEY_KEY_KP_1]; - data = honey_key_callbacks_data[HONEY_KEY_KP_1]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_KP_2: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_KP_2] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_KP_2] = 0; } - callback = honey_key_callbacks[HONEY_KEY_KP_2]; - data = honey_key_callbacks_data[HONEY_KEY_KP_2]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_KP_3: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_KP_3] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_KP_3] = 0; } - callback = honey_key_callbacks[HONEY_KEY_KP_3]; - data = honey_key_callbacks_data[HONEY_KEY_KP_3]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_KP_4: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_KP_4] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_KP_4] = 0; } - callback = honey_key_callbacks[HONEY_KEY_KP_4]; - data = honey_key_callbacks_data[HONEY_KEY_KP_4]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_KP_5: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_KP_5] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_KP_5] = 0; } - callback = honey_key_callbacks[HONEY_KEY_KP_5]; - data = honey_key_callbacks_data[HONEY_KEY_KP_5]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_KP_6: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_KP_6] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_KP_6] = 0; } - callback = honey_key_callbacks[HONEY_KEY_KP_6]; - data = honey_key_callbacks_data[HONEY_KEY_KP_6]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_KP_7: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_KP_7] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_KP_7] = 0; } - callback = honey_key_callbacks[HONEY_KEY_KP_7]; - data = honey_key_callbacks_data[HONEY_KEY_KP_7]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_KP_8: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_KP_8] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_KP_8] = 0; } - callback = honey_key_callbacks[HONEY_KEY_KP_8]; - data = honey_key_callbacks_data[HONEY_KEY_KP_8]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_KP_9: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_KP_9] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_KP_9] = 0; } - callback = honey_key_callbacks[HONEY_KEY_KP_9]; - data = honey_key_callbacks_data[HONEY_KEY_KP_9]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_KP_DECIMAL: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_KP_DECIMAL] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_KP_DECIMAL] = 0; } - callback = honey_key_callbacks[HONEY_KEY_KP_DECIMAL]; - data = honey_key_callbacks_data[HONEY_KEY_KP_DECIMAL]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_KP_DIVIDE: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_KP_DIVIDE] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_KP_DIVIDE] = 0; } - callback = honey_key_callbacks[HONEY_KEY_KP_DIVIDE]; - data = honey_key_callbacks_data[HONEY_KEY_KP_DIVIDE]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_KP_MULTIPLY: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_KP_MULTIPLY] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_KP_MULTIPLY] = 0; } - callback = honey_key_callbacks[HONEY_KEY_KP_MULTIPLY]; - data = honey_key_callbacks_data[HONEY_KEY_KP_MULTIPLY]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_KP_SUBTRACT: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_KP_SUBTRACT] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_KP_SUBTRACT] = 0; } - callback = honey_key_callbacks[HONEY_KEY_KP_SUBTRACT]; - data = honey_key_callbacks_data[HONEY_KEY_KP_SUBTRACT]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_KP_ADD: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_KP_ADD] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_KP_ADD] = 0; } - callback = honey_key_callbacks[HONEY_KEY_KP_ADD]; - data = honey_key_callbacks_data[HONEY_KEY_KP_ADD]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_KP_ENTER: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_KP_ENTER] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_KP_ENTER] = 0; } - callback = honey_key_callbacks[HONEY_KEY_KP_ENTER]; - data = honey_key_callbacks_data[HONEY_KEY_KP_ENTER]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_KP_EQUAL: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_KP_EQUAL] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_KP_EQUAL] = 0; } - callback = honey_key_callbacks[HONEY_KEY_KP_EQUAL]; - data = honey_key_callbacks_data[HONEY_KEY_KP_EQUAL]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_LEFT_SHIFT: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_LEFT_SHIFT] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_LEFT_SHIFT] = 0; } - callback = honey_key_callbacks[HONEY_KEY_LEFT_SHIFT]; - data = honey_key_callbacks_data[HONEY_KEY_LEFT_SHIFT]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_LEFT_CONTROL: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_LEFT_CONTROL] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_LEFT_CONTROL] = 0; } - callback = honey_key_callbacks[HONEY_KEY_LEFT_CONTROL]; - data = honey_key_callbacks_data[HONEY_KEY_LEFT_CONTROL]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_LEFT_ALT: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_LEFT_ALT] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_LEFT_ALT] = 0; } - callback = honey_key_callbacks[HONEY_KEY_LEFT_ALT]; - data = honey_key_callbacks_data[HONEY_KEY_LEFT_ALT]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_LEFT_SUPER: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_LEFT_SUPER] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_LEFT_SUPER] = 0; } - callback = honey_key_callbacks[HONEY_KEY_LEFT_SUPER]; - data = honey_key_callbacks_data[HONEY_KEY_LEFT_SUPER]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_RIGHT_SHIFT: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_RIGHT_SHIFT] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_RIGHT_SHIFT] = 0; } - callback = honey_key_callbacks[HONEY_KEY_RIGHT_SHIFT]; - data = honey_key_callbacks_data[HONEY_KEY_RIGHT_SHIFT]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_RIGHT_CONTROL: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_RIGHT_CONTROL] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_RIGHT_CONTROL] = 0; } - callback = honey_key_callbacks[HONEY_KEY_RIGHT_CONTROL]; - data = honey_key_callbacks_data[HONEY_KEY_RIGHT_CONTROL]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_RIGHT_ALT: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_RIGHT_ALT] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_RIGHT_ALT] = 0; } - callback = honey_key_callbacks[HONEY_KEY_RIGHT_ALT]; - data = honey_key_callbacks_data[HONEY_KEY_RIGHT_ALT]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_RIGHT_SUPER: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_RIGHT_SUPER] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_RIGHT_SUPER] = 0; } - callback = honey_key_callbacks[HONEY_KEY_RIGHT_SUPER]; - data = honey_key_callbacks_data[HONEY_KEY_RIGHT_SUPER]; - execute_lua_key_callback(L, callback, action, data); - break; - - case GLFW_KEY_MENU: - if (action == HONEY_KEY_PRESS) { honey_key_states[HONEY_KEY_MENU] = 1; } - if (action == HONEY_KEY_RELEASE) { honey_key_states[HONEY_KEY_MENU] = 0; } - callback = honey_key_callbacks[HONEY_KEY_MENU]; - data = honey_key_callbacks_data[HONEY_KEY_MENU]; - execute_lua_key_callback(L, callback, action, data); - break; - - default: - /* do nothing */ - break; - } -} diff --git a/src/input.h b/src/input.h deleted file mode 100644 index 5b7f2cc..0000000 --- a/src/input.h +++ /dev/null @@ -1,229 +0,0 @@ -#ifndef HONEY_INPUT_H -#define HONEY_INPUT_H - -/** @file input.h - * - * @brief Wrap GLFW input functions for honey. - */ - -#include "common.h" - -#define HONEY_KEY_UNKNOWN 0 -#define HONEY_KEY_SPACE 1 -#define HONEY_KEY_APOSTROPHE 2 -#define HONEY_KEY_COMMA 3 -#define HONEY_KEY_MINUS 4 -#define HONEY_KEY_PERIOD 5 -#define HONEY_KEY_SLASH 6 -#define HONEY_KEY_0 7 -#define HONEY_KEY_1 8 -#define HONEY_KEY_2 9 -#define HONEY_KEY_3 10 -#define HONEY_KEY_4 11 -#define HONEY_KEY_5 12 -#define HONEY_KEY_6 13 -#define HONEY_KEY_7 14 -#define HONEY_KEY_8 15 -#define HONEY_KEY_9 16 -#define HONEY_KEY_SEMICOLON 17 -#define HONEY_KEY_EQUAL 18 -#define HONEY_KEY_A 19 -#define HONEY_KEY_B 20 -#define HONEY_KEY_C 21 -#define HONEY_KEY_D 22 -#define HONEY_KEY_E 23 -#define HONEY_KEY_F 24 -#define HONEY_KEY_G 25 -#define HONEY_KEY_H 26 -#define HONEY_KEY_I 27 -#define HONEY_KEY_J 28 -#define HONEY_KEY_K 29 -#define HONEY_KEY_L 30 -#define HONEY_KEY_M 31 -#define HONEY_KEY_N 32 -#define HONEY_KEY_O 33 -#define HONEY_KEY_P 34 -#define HONEY_KEY_Q 35 -#define HONEY_KEY_R 36 -#define HONEY_KEY_S 37 -#define HONEY_KEY_T 38 -#define HONEY_KEY_U 39 -#define HONEY_KEY_V 40 -#define HONEY_KEY_W 41 -#define HONEY_KEY_X 42 -#define HONEY_KEY_Y 43 -#define HONEY_KEY_Z 44 -#define HONEY_KEY_LEFT_BRACKET 45 -#define HONEY_KEY_BACKSLASH 46 -#define HONEY_KEY_RIGHT_BRACKET 47 -#define HONEY_KEY_GRAVE_ACCENT 48 -#define HONEY_KEY_WORLD_1 49 -#define HONEY_KEY_WORLD_2 50 -#define HONEY_KEY_ESCAPE 51 -#define HONEY_KEY_ENTER 52 -#define HONEY_KEY_TAB 53 -#define HONEY_KEY_BACKSPACE 54 -#define HONEY_KEY_INSERT 55 -#define HONEY_KEY_DELETE 56 -#define HONEY_KEY_RIGHT 57 -#define HONEY_KEY_LEFT 58 -#define HONEY_KEY_DOWN 59 -#define HONEY_KEY_UP 60 -#define HONEY_KEY_PAGE_UP 61 -#define HONEY_KEY_PAGE_DOWN 62 -#define HONEY_KEY_HOME 63 -#define HONEY_KEY_END 64 -#define HONEY_KEY_CAPS_LOCK 65 -#define HONEY_KEY_SCROLL_LOCK 66 -#define HONEY_KEY_NUM_LOCK 67 -#define HONEY_KEY_PRINT_SCREEN 68 -#define HONEY_KEY_PAUSE 69 -#define HONEY_KEY_F1 70 -#define HONEY_KEY_F2 71 -#define HONEY_KEY_F3 72 -#define HONEY_KEY_F4 73 -#define HONEY_KEY_F5 74 -#define HONEY_KEY_F6 75 -#define HONEY_KEY_F7 76 -#define HONEY_KEY_F8 77 -#define HONEY_KEY_F9 78 -#define HONEY_KEY_F10 79 -#define HONEY_KEY_F11 80 -#define HONEY_KEY_F12 81 -#define HONEY_KEY_F13 82 -#define HONEY_KEY_F14 83 -#define HONEY_KEY_F15 84 -#define HONEY_KEY_F16 85 -#define HONEY_KEY_F17 86 -#define HONEY_KEY_F18 87 -#define HONEY_KEY_F19 88 -#define HONEY_KEY_F20 89 -#define HONEY_KEY_F21 90 -#define HONEY_KEY_F22 91 -#define HONEY_KEY_F23 92 -#define HONEY_KEY_F24 93 -#define HONEY_KEY_F25 94 -#define HONEY_KEY_KP_0 95 -#define HONEY_KEY_KP_1 96 -#define HONEY_KEY_KP_2 97 -#define HONEY_KEY_KP_3 98 -#define HONEY_KEY_KP_4 99 -#define HONEY_KEY_KP_5 100 -#define HONEY_KEY_KP_6 101 -#define HONEY_KEY_KP_7 102 -#define HONEY_KEY_KP_8 103 -#define HONEY_KEY_KP_9 104 -#define HONEY_KEY_KP_DECIMAL 105 -#define HONEY_KEY_KP_DIVIDE 106 -#define HONEY_KEY_KP_MULTIPLY 107 -#define HONEY_KEY_KP_SUBTRACT 108 -#define HONEY_KEY_KP_ADD 109 -#define HONEY_KEY_KP_ENTER 110 -#define HONEY_KEY_KP_EQUAL 111 -#define HONEY_KEY_LEFT_SHIFT 112 -#define HONEY_KEY_LEFT_CONTROL 113 -#define HONEY_KEY_LEFT_ALT 114 -#define HONEY_KEY_LEFT_SUPER 115 -#define HONEY_KEY_RIGHT_SHIFT 116 -#define HONEY_KEY_RIGHT_CONTROL 117 -#define HONEY_KEY_RIGHT_ALT 118 -#define HONEY_KEY_RIGHT_SUPER 119 -#define HONEY_KEY_MENU 120 - -#define HONEY_N_KEYS 121 - -#define HONEY_KEY_PRESS GLFW_PRESS -#define HONEY_KEY_RELEASE GLFW_RELEASE - -#define HONEY_MOUSE_MODE_NORMAL GLFW_CURSOR_NORMAL -#define HONEY_MOUSE_MODE_HIDDEN GLFW_CURSOR_HIDDEN -#define HONEY_MOUSE_MODE_CAPTURED GLFW_CURSOR_DISABLED - -unsigned int honey_key_states[HONEY_N_KEYS]; -static int honey_key_callbacks[HONEY_N_KEYS]; -static int honey_key_callbacks_data[HONEY_N_KEYS]; - -extern int honey_mouse_movement_callback_ref; -extern int honey_mouse_movement_callback_data_ref; - -/** @brief Initializes Honey's internal keyboard states. - * - * This function is called by honey_setup, so you shouldn't need - * to manually call it in most cases. - */ -void honey_setup_keyboard(); - -/* @brief Place a lua table containing the enum values for GLFW keys on the stack. - * - * @param L The lua state to place the table on the top of the stack. - * - * @returns Nothing. - */ -void honey_setup_input(lua_State* L); - -/** @brief Check if a key is down. - * - * This function accepts a single integer as input and returns TRUE if the integer - * refers to a valid key and is pressed down, and false otherwise. - * - * @param[in] L The lua state. - * - * @return 1 on success and 0 on failure. - */ -int honey_key_down(lua_State* L); - -/** @brief Bind a callback to a key. - * - * The callback must have signature (void*, int), where the first argument is supplied by the - * void* supplied with this function, and the int is one of HONEY_KEY_PRESS or HONEY_KEY_RELEASE, - * depending on the action that triggered the callback. - * - * @param[in] key The key to bind the callback to. - * @param[in] callback The callback function to bind. - * @param[in] data Data to pass to the callback function upon triggering. - */ -int honey_key_bind(lua_State* L); - -/** @brief Unbind a key callback. - * - * THIS FUNCTION DOES NOT FREE MEMORY! If you allocated any, be sure to free it yourself! - * - * @param[in] key The key to unbind a callback from. - */ -int honey_key_unbind(lua_State* L); - -/** @brief Unbind all key callbacks. - * - * THIS FUNCTION DOES NOT FREE MEMORY! If you allocated any, be sure to free it yourself! - */ -int honey_key_unbind_all(lua_State* L); - -/** @brief Set the cursor mode. - * - * @param[in] mode The mouse mode (from honey.input.mouse.mode) to use. - * - * @returns Nothing. - */ -int honey_mouse_set_mode(lua_State* L); - -/** Bind a callback to mouse movement. - * - * The callback should be of the form cb(xpos, ypos, data), - * where xpos and ypos are the coordinates of the mouse relative to the - * upper left corner of the window, and data is the data parameter passed - * to this function. - * - * @param[in] callback A callback as described above. - * @param[in] data Auxilliary data to pass to the callback. - * - * @returns Nothing. - */ -int honey_mouse_movement_bind(lua_State* L); - -/** Unbind any callback that may be attached to mouse movement. - * - * @returns Nothing. - */ -int honey_mouse_movement_unbind(lua_State* L); - -#endif diff --git a/src/test/logging/logging_tests.c b/src/logging/logging.test.c index e267b5d..e267b5d 100644 --- a/src/test/logging/logging_tests.c +++ b/src/logging/logging.test.c @@ -1,21 +1,7 @@ -#include "honey.h" +#include <stdio.h> -int main(int argc, char** argv) +int main() { - honey_options opts; - if (!honey_parse_options(&opts, argc, argv)) { - return 0; - } - - lua_State* L; - - if (!honey_setup(&L)) - return 1; - - bool success = honey_run(L, opts); - - if (!success) - return 1; - - return 0; + printf("hello, world!\n"); + return 0; } diff --git a/src/mesh.c b/src/mesh.c deleted file mode 100644 index 5536640..0000000 --- a/src/mesh.c +++ /dev/null @@ -1,445 +0,0 @@ -#include "mesh.h" - -int honey_mesh_mt_ref = LUA_NOREF; - -struct vertex { - float position[3]; - float normal[3]; - float tangent[3]; - float bitangent[3]; - float uv[2]; - float color[4]; - - unsigned int bones[4]; - float weights[4]; -}; - -struct mesh { - unsigned int n_vertices; - struct vertex* vertices; - unsigned int n_indices; - unsigned int* indices; -}; - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static int honey_mesh_lua_draw(lua_State* L) -{ - honey_mesh* mesh; - int* shader; - honey_lua_parse_arguments(L, 1, 2, - HONEY_USERDATA, &mesh, - HONEY_USERDATA, &shader); - honey_mesh_draw(*mesh, *shader); - return 0; -} - -static int honey_mesh_lua_delete(lua_State* L) -{ - honey_mesh* mesh; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &mesh); - honey_mesh_delete(*mesh); - return 0; -} - -static float get_number(lua_State* L, const char* field, int index) -{ - lua_rawgeti(L, -1, index); - if (!lua_isnumber(L, -1)) - honey_lua_throw_error(L, "all elements of '%s' must be numbers; got %s at %d instead", - field, lua_typename(L, lua_type(L, -1)), index); - - float number = lua_tonumber(L, -1); - lua_pop(L, 1); - return number; -} - -static bool load_field(lua_State* L, const char* field, int length, int fields) -{ - lua_getfield(L, 1, field); - if (lua_isnil(L, -1)) { - return false; - } - if (!lua_istable(L, -1)) - honey_lua_throw_error(L, "expected '%s' to be a table; got %s instead", - field, - lua_typename(L, lua_type(L, -1))); - - int table_len = lua_objlen(L, -1); - if (table_len != fields*length) - honey_lua_throw_error(L, "expected field '%s' to contain %d elements; got %d instead", - field, table_len, fields*length); - - return true; -} - -static int honey_mesh_lua_build(lua_State* L) -{ - honey_lua_parse_arguments(L, 1, 1, HONEY_TABLE, NULL); - - lua_getfield(L, 1, "position"); - if (lua_isnil(L, -1)) - honey_lua_throw_error(L, "a 'position' table is required but was not found"); - int n_vertices = lua_objlen(L, -1)/3; - lua_pop(L, 1); - - lua_getfield(L, 1, "faces"); - if (lua_isnil(L, -1)) - honey_lua_throw_error(L, "a 'faces' table is required but was not found"); - int n_indices = lua_objlen(L, -1); - lua_pop(L, 1); - - - struct mesh m; - m.n_vertices = n_vertices; - m.n_indices = n_indices; - m.vertices = malloc(sizeof(struct vertex) * m.n_vertices); - m.indices = malloc(sizeof(unsigned int) * m.n_indices); - - load_field(L, "position", m.n_vertices, 3); - for (int i=0; i<m.n_vertices; i++) { - m.vertices[i].position[0] = get_number(L, "position", 3*i+1); - m.vertices[i].position[1] = get_number(L, "position", 3*i+2); - m.vertices[i].position[2] = get_number(L, "position", 3*i+3); - } - lua_pop(L, 1); - - load_field(L, "faces", m.n_indices, 1); - for (int i=0; i<m.n_indices; i++) { - m.indices[i] = get_number(L, "faces", i+1); - } - lua_pop(L, 1); - - if (load_field(L, "normal", m.n_vertices, 3)) { - for (int i=0; i<m.n_vertices; i++) { - m.vertices[i].normal[0] = get_number(L, "normal", 3*i+1); - m.vertices[i].normal[1] = get_number(L, "normal", 3*i+2); - m.vertices[i].normal[2] = get_number(L, "normal", 3*i+3); - } - } - lua_pop(L, 1); - - if (load_field(L, "tangent", m.n_vertices, 3)) { - for (int i=0; i<m.n_vertices; i++) { - m.vertices[i].tangent[0] = get_number(L, "tangent", 3*i+1); - m.vertices[i].tangent[1] = get_number(L, "tangent", 3*i+2); - m.vertices[i].tangent[2] = get_number(L, "tangent", 3*i+3); - } - } - lua_pop(L, 1); - - if (load_field(L, "bitangent", m.n_vertices, 3)) { - for (int i=0; i<m.n_vertices; i++) { - m.vertices[i].bitangent[0] = get_number(L, "bitangent", 3*i+1); - m.vertices[i].bitangent[1] = get_number(L, "bitangent", 3*i+2); - m.vertices[i].bitangent[2] = get_number(L, "bitangent", 3*i+3); - } - } - lua_pop(L, 1); - - if (load_field(L, "uv", m.n_vertices, 2)) { - for (int i=0; i<m.n_vertices; i++) { - m.vertices[i].uv[0] = get_number(L, "uv", 2*i+1); - m.vertices[i].uv[1] = get_number(L, "uv", 2*i+2); - } - } - lua_pop(L, 1); - - if (load_field(L, "color", m.n_vertices, 4)) { - for (int i=0; i<4 * m.n_vertices; i++) { - m.vertices[i].color[0] = get_number(L, "color", 4*i+1); - m.vertices[i].color[1] = get_number(L, "color", 4*i+2); - m.vertices[i].color[2] = get_number(L, "color", 4*i+3); - m.vertices[i].color[3] = get_number(L, "color", 4*i+4); - } - } - lua_pop(L, 1); - - if (load_field(L, "bones", m.n_vertices, 4)) { - for (int i=0; i<4 * m.n_vertices; i++) { - m.vertices[i].bones[0] = get_number(L, "bones", 4*i+1); - m.vertices[i].bones[1] = get_number(L, "bones", 4*i+2); - m.vertices[i].bones[2] = get_number(L, "bones", 4*i+3); - m.vertices[i].bones[3] = get_number(L, "bones", 4*i+4); - } - } - lua_pop(L, 1); - - if (load_field(L, "weights", m.n_vertices, 4)) { - for (int i=0; i<4 * m.n_vertices; i++) { - m.vertices[i].weights[0] = get_number(L, "weights", 4*i+1); - m.vertices[i].weights[1] = get_number(L, "weights", 4*i+2); - m.vertices[i].weights[2] = get_number(L, "weights", 4*i+3); - m.vertices[i].weights[3] = get_number(L, "weights", 4*i+4); - } - } - lua_pop(L, 1); - - honey_mesh* mesh = lua_newuserdata(L, sizeof(honey_mesh)); - honey_result result = honey_mesh_new(mesh, m); - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_mesh_mt_ref); - lua_setmetatable(L, -2); - - free(m.vertices); - free(m.indices); - - return 1; -} - -void honey_setup_mesh(lua_State* L) -{ - honey_lua_create_table - (L, 2, - HONEY_TABLE, "__index", 1, - HONEY_FUNCTION, "draw", honey_mesh_lua_draw, - - HONEY_FUNCTION, "__gc", honey_mesh_lua_delete); - honey_mesh_mt_ref = luaL_ref(L, LUA_REGISTRYINDEX); - - lua_pushcfunction(L, honey_mesh_load); - lua_setfield(L, -2, "loadMesh"); - - lua_pushcfunction(L, honey_mesh_lua_build); - lua_setfield(L, -2, "buildMesh"); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static honey_mesh assimp_to_honey_mesh(struct aiMesh* ai_mesh, - struct aiScene* scene) -{ - struct mesh m; - bool has_normals = ai_mesh->mNormals != NULL; - bool has_tangents = ai_mesh->mTangents != NULL; - bool has_uvs = ai_mesh->mTextureCoords != NULL; - bool has_colors = ai_mesh->mColors != NULL; - - m.n_vertices = ai_mesh->mNumVertices; - - m.vertices = malloc(m.n_vertices * sizeof(struct vertex)); - for (int i=0; i<m.n_vertices; i++) { - m.vertices[i].position[0] = ai_mesh->mVertices[i].x; - m.vertices[i].position[1] = ai_mesh->mVertices[i].y; - m.vertices[i].position[2] = ai_mesh->mVertices[i].z; - - if (has_normals) { - m.vertices[i].normal[0] = ai_mesh->mNormals[i].x; - m.vertices[i].normal[1] = ai_mesh->mNormals[i].y; - m.vertices[i].normal[2] = ai_mesh->mNormals[i].z; - } - else { - m.vertices[i].normal[0] = 0; - m.vertices[i].normal[1] = 0; - m.vertices[i].normal[2] = 0; - } - - if (has_tangents) { - m.vertices[i].tangent[0] = ai_mesh->mTangents[i].x; - m.vertices[i].tangent[1] = ai_mesh->mTangents[i].y; - m.vertices[i].tangent[2] = ai_mesh->mTangents[i].z; - - m.vertices[i].bitangent[0] = ai_mesh->mBitangents[i].x; - m.vertices[i].bitangent[1] = ai_mesh->mBitangents[i].y; - m.vertices[i].bitangent[2] = ai_mesh->mBitangents[i].z; - } - else { - m.vertices[i].tangent[0] = 0; - m.vertices[i].tangent[1] = 0; - m.vertices[i].tangent[2] = 0; - - m.vertices[i].bitangent[0] = 0; - m.vertices[i].bitangent[1] = 0; - m.vertices[i].bitangent[2] = 0; - } - - if (has_uvs) { - m.vertices[i].uv[0] = ai_mesh->mTextureCoords[0][i].x; - m.vertices[i].uv[1] = ai_mesh->mTextureCoords[0][i].y; - } - else { - m.vertices[i].uv[0] = 0; - m.vertices[i].uv[1] = 0; - } - } - - m.n_indices = ai_mesh->mNumFaces*3; - m.indices = malloc(sizeof(unsigned int) * m.n_indices); - for (int i=0; i<ai_mesh->mNumFaces; i++) { - int j = 3*i; - struct aiFace face = ai_mesh->mFaces[i]; - m.indices[j+0] = face.mIndices[0]; - m.indices[j+1] = face.mIndices[1]; - m.indices[j+2] = face.mIndices[2]; - } - - honey_mesh result; - honey_mesh_new(&result, m); - - free(m.vertices); - free(m.indices); - - return result; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void process_nodes_recursively(lua_State* L, - struct aiScene* scene, - struct aiNode* node, - int* n_meshes) -{ - for (int i=0; i<node->mNumMeshes; i++) { - honey_mesh* mesh = lua_newuserdata(L, sizeof(honey_mesh)); - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_mesh_mt_ref); - lua_setmetatable(L, -2); - - struct aiMesh* assimp_mesh = scene->mMeshes[node->mMeshes[i]]; - *mesh = assimp_to_honey_mesh(assimp_mesh, scene); - lua_rawseti(L, -2, *n_meshes); - (*n_meshes)++; - } - - for (int i=0; i<node->mNumChildren; i++) { - process_nodes_recursively(L, scene, node->mChildren[i], n_meshes); - } -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_mesh_load(lua_State* L) -{ - char* filename; - honey_lua_parse_arguments(L, 1, 1, HONEY_STRING, &filename); - - int n_meshes = 1; - - struct aiScene* scene = aiImportFile(filename, - aiProcess_Triangulate | - aiProcess_FlipUVs); - if (scene == NULL) { - char* error; - honey_format_string(&error, "could not open file '%s'", filename); - lua_pushstring(L, error); - free(error); - lua_error(L); - } - - if (scene->mFlags & AI_SCENE_FLAGS_INCOMPLETE || - scene->mRootNode == NULL) { - char* error; - honey_format_string(&error, "could not read mesh(es) in '%s'", filename); - lua_pushstring(L, error); - free(error); - lua_error(L); - } - - lua_createtable(L, 0, 0); - - process_nodes_recursively(L, scene, scene->mRootNode, &n_meshes); - - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -honey_result honey_mesh_new(honey_mesh* mesh, - struct mesh m) -{ - if (m.vertices == NULL || m.n_vertices == 0) { - return HONEY_MESH_BAD_VERTEX_DATA; - } - if (m.indices == NULL || m.n_indices == 0) { - return HONEY_MESH_BAD_INDEX_DATA; - } - - mesh->n_vertices = m.n_vertices; - mesh->n_indices = m.n_indices; - - glGenVertexArrays(1, &(mesh->vertex_array)); - glGenBuffers(1, &(mesh->vertex_buffer)); - glGenBuffers(1, &(mesh->element_buffer)); - - glBindVertexArray(mesh->vertex_array); - - glBindBuffer(GL_ARRAY_BUFFER, mesh->vertex_buffer); - glBufferData(GL_ARRAY_BUFFER, - m.n_vertices * sizeof(struct vertex), - m.vertices, GL_STATIC_DRAW); - - glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mesh->element_buffer); - glBufferData(GL_ELEMENT_ARRAY_BUFFER, - m.n_indices * sizeof(unsigned int), - m.indices, GL_STATIC_DRAW); - - /* set up vertex attributes */ - size_t offset = 0; - /* position */ - glEnableVertexAttribArray(0); - glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, - sizeof(struct vertex), offset); - offset += 3*sizeof(float); - - /* normal */ - glEnableVertexAttribArray(1); - glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, - sizeof(struct vertex), offset); - offset += 3*sizeof(float); - - /* tangent */ - glEnableVertexAttribArray(2); - glVertexAttribPointer(2, 3, GL_FLOAT, GL_FALSE, - sizeof(struct vertex), offset); - offset += 3*sizeof(float); - - /* bitangent */ - glEnableVertexAttribArray(3); - glVertexAttribPointer(3, 3, GL_FLOAT, GL_FALSE, - sizeof(struct vertex), offset); - offset += 3*sizeof(float); - - /* UV */ - glEnableVertexAttribArray(4); - glVertexAttribPointer(4, 2, GL_FLOAT, GL_FALSE, - sizeof(struct vertex), offset); - offset += 2*sizeof(float); - - /* color */ - glEnableVertexAttribArray(5); - glVertexAttribPointer(5, 4, GL_FLOAT, GL_FALSE, - sizeof(struct vertex), offset); - offset += 4*sizeof(float); - - /* bone indices */ - glEnableVertexAttribArray(6); - glVertexAttribPointer(6, 4, GL_UNSIGNED_INT, GL_FALSE, - sizeof(struct vertex), offset); - offset += 4*sizeof(unsigned int); - - /* bone weights */ - glEnableVertexAttribArray(7); - glVertexAttribPointer(7, 4, GL_FLOAT, GL_FALSE, - sizeof(struct vertex), offset); - - /* done */ - glBindVertexArray(0); - - return HONEY_OK; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -void honey_mesh_draw(honey_mesh mesh, int shader) { - glUseProgram(shader); - - glBindVertexArray(mesh.vertex_array); - glDrawElements(GL_TRIANGLES, mesh.n_indices, GL_UNSIGNED_INT, 0); - glBindVertexArray(0); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -void honey_mesh_delete(honey_mesh mesh) { - glDeleteVertexArrays(1, &(mesh.vertex_array)); - glDeleteBuffers(1, &(mesh.vertex_buffer)); - glDeleteBuffers(1, &(mesh.element_buffer)); -} diff --git a/src/mesh.h b/src/mesh.h deleted file mode 100644 index f3e742e..0000000 --- a/src/mesh.h +++ /dev/null @@ -1,61 +0,0 @@ -#ifndef HONEY_MESH_H -#define HONEY_MESH_H - -/** @file mesh.h - * - * @brief Defines the honey_mesh struct and related basic mesh functions. -*/ - -#include "common.h" - -extern int honey_mesh_mt_ref; - -typedef struct { - unsigned int n_vertices, n_indices; - unsigned int vertex_array, vertex_buffer, element_buffer; -} honey_mesh; - -/** @brief Lua bindings for mesh drawing and deletion functions. */ -void honey_setup_mesh(lua_State* L); - -/** @brief Load all meshes from a file. - * - * @param[in] filename The name of the file to load from. - * - * @returns A table containing all of the meshes. - */ -int honey_mesh_load(lua_State* L); - -struct mesh; - -/** @brief Create a new mesh from vertex and index arrays. - * - * Note that this function creates copies of the vertex and index arrays, - * so you can deallocate those immediately. - * - * @param[out] mesh Pointer to the destination honey_mesh struct - * @param[in] vertices Array of floats representing the vertices - * @param[in] n_attributes The number of attributes per vertex - * @param[in] attribute_sizes An array containing for each attribute how many floats it contains - * @param[in] n_vertices The number of vertices (NOT the number of floats in the vertex array) - * @param[in] indices Array of vertex indices - * @param[in] n_indices The number of elements in the index array - */ -honey_result honey_mesh_new(honey_mesh* mesh, - struct mesh m); - -/** @brief Draw a mesh on screen. - * - * @param[in] mesh The mesh to draw - * @param[in] shader The shader to use when drawing the mesh - */ -void honey_mesh_draw(honey_mesh mesh, - int shader); - -/** @brief Delete a mesh. - * - * @param[in] mesh The mesh to delete - */ -void honey_mesh_delete(honey_mesh mesh); - -#endif diff --git a/src/primitives.c b/src/primitives.c deleted file mode 100644 index d858cc6..0000000 --- a/src/primitives.c +++ /dev/null @@ -1,226 +0,0 @@ -#include "primitives.h" - -static int honey_mesh_lua_plane(lua_State* L) -{ - float width, height; - honey_lua_parse_arguments(L, 1, 2, - HONEY_NUMBER, &width, - HONEY_NUMBER, &height); - - honey_mesh* mesh = lua_newuserdata(L, sizeof(honey_mesh)); - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_mesh_mt_ref); - lua_setmetatable(L, -2); - if (honey_mesh_new_textured_plane(mesh, width, height) != HONEY_OK) { - lua_pushstring(L, "error encountered while building plane"); - lua_error(L); - } - return 1; -} - -static int honey_mesh_lua_cube(lua_State* L) -{ - float width, height, depth; - honey_lua_parse_arguments(L, 1, 3, - HONEY_NUMBER, &width, - HONEY_NUMBER, &height, - HONEY_NUMBER, &depth); - - honey_mesh* mesh = lua_newuserdata(L, sizeof(honey_mesh)); - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_mesh_mt_ref); - lua_setmetatable(L, -2); - if (honey_mesh_new_textured_cube(mesh, width, height, depth) != HONEY_OK) { - lua_pushstring(L, "error encountered while building plane"); - lua_error(L); - } - return 1; -} - -void honey_setup_primitives(lua_State* L) -{ - honey_lua_create_table - (L, 2, - HONEY_FUNCTION, "plane", honey_mesh_lua_plane, - HONEY_FUNCTION, "cube", honey_mesh_lua_cube); - lua_setfield(L, -2, "primitives"); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -honey_result honey_mesh_new_textured_plane(honey_mesh* mesh, - float width, - float height) { - float x0 = 0; - float y0 = 0; - float x1 = width; - float y1 = height; - - float vertices[] = { - /* position normal uv */ - x0, y0, 0, 0, 0, 1, 0, 0, - x1, y0, 0, 0, 0, 1, 1, 0, - x0, y1, 0, 0, 0, 1, 0, 1, - x1, y1, 0, 0, 0, 1, 1, 1 }; - - unsigned int indices[] = { - 0, 1, 2, - 3, 2, 1 }; - - unsigned int attrib_sizes[] = { 3, 3, 2 }; - - honey_result result = honey_mesh_new(mesh, - vertices, 4, - 3, attrib_sizes, - indices, 6); - return result; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -honey_result honey_mesh_new_cube(honey_mesh* mesh, - float width, - float height, - float depth) { - float x0 = 0; - float y0 = 0; - float z0 = 0; - - float x1 = width; - float y1 = height; - float z1 = depth; - - float vertices[] = { - /* position normal tex coord */ - /* back face */ - x0, y0, z0, 0, 0, -1, - x1, y0, z0, 0, 0, -1, - x0, y1, z0, 0, 0, -1, - x1, y1, z0, 0, 0, -1, - - /* front face */ - x0, y0, z1, 0, 0, 1, - x1, y0, z1, 0, 0, 1, - x0, y1, z1, 0, 0, 1, - x1, y1, z1, 0, 0, 1, - - /* left face */ - x0, y0, z0, -1, 0, 0, - x0, y1, z0, -1, 0, 0, - x0, y0, z1, -1, 0, 0, - x0, y1, z1, -1, 0, 0, - - /* right face */ - x1, y0, z0, 1, 0, 0, - x1, y1, z0, 1, 0, 0, - x1, y0, z1, 1, 0, 0, - x1, y1, z1, 1, 0, 0, - - /* bottom face */ - x0, y0, z0, 0, -1, 0, - x1, y0, z0, 0, -1, 0, - x0, y0, z1, 0, -1, 0, - x1, y0, z1, 0, -1, 0, - - /* top face */ - x0, y1, z0, 0, 1, 0, - x1, y1, z0, 0, 1, 0, - x0, y1, z1, 0, 1, 0, - x1, y1, z1, 0, 1, 0 }; - - unsigned int indices[] = { - 0, 1, 2, - 1, 2, 3, - 4, 5, 6, - 5, 6, 7, - 8, 9, 10, - 9, 10, 11, - 12, 13, 14, - 13, 14, 15, - 16, 17, 18, - 17, 18, 19, - 20, 21, 22, - 21, 22, 23 }; - - unsigned int attrib_sizes[] = { 3, 3 }; - - honey_result result = honey_mesh_new(mesh, - vertices, 24, - 2, attrib_sizes, - indices, 36); - - return result; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -honey_result honey_mesh_new_textured_cube(honey_mesh* mesh, - float width, - float height, - float depth) { - float x0 = 0; - float y0 = 0; - float z0 = 0; - - float x1 = width; - float y1 = height; - float z1 = depth; - - float vertices[] = { - /* position normal tex coord */ - /* back face */ - x0, y0, z0, 0, 0, -1, 0, 0, - x1, y0, z0, 0, 0, -1, 1, 0, - x0, y1, z0, 0, 0, -1, 0, 1, - x1, y1, z0, 0, 0, -1, 1, 1, - - /* front face */ - x0, y0, z1, 0, 0, 1, 0, 0, - x1, y0, z1, 0, 0, 1, 1, 0, - x0, y1, z1, 0, 0, 1, 0, 1, - x1, y1, z1, 0, 0, 1, 1, 1, - - /* left face */ - x0, y0, z0, -1, 0, 0, 0, 0, - x0, y1, z0, -1, 0, 0, 1, 0, - x0, y0, z1, -1, 0, 0, 0, 1, - x0, y1, z1, -1, 0, 0, 1, 1, - - /* right face */ - x1, y0, z0, 1, 0, 0, 0, 0, - x1, y1, z0, 1, 0, 0, 1, 0, - x1, y0, z1, 1, 0, 0, 0, 1, - x1, y1, z1, 1, 0, 0, 1, 1, - - /* bottom face */ - x0, y0, z0, 0, -1, 0, 0, 0, - x1, y0, z0, 0, -1, 0, 1, 0, - x0, y0, z1, 0, -1, 0, 0, 1, - x1, y0, z1, 0, -1, 0, 1, 1, - - /* top face */ - x0, y1, z0, 0, 1, 0, 0, 0, - x1, y1, z0, 0, 1, 0, 1, 0, - x0, y1, z1, 0, 1, 0, 0, 1, - x1, y1, z1, 0, 1, 0, 1, 1 }; - - unsigned int indices[] = { - 0, 1, 2, - 1, 2, 3, - 4, 5, 6, - 5, 6, 7, - 8, 9, 10, - 9, 10, 11, - 12, 13, 14, - 13, 14, 15, - 16, 17, 18, - 17, 18, 19, - 20, 21, 22, - 21, 22, 23 }; - - unsigned int attrib_sizes[] = { 3, 3, 2 }; - - honey_result result; - result = honey_mesh_new(mesh, vertices, 24, - 3, attrib_sizes, - indices, 36); - return result; -} diff --git a/src/primitives.h b/src/primitives.h deleted file mode 100644 index 923a0e3..0000000 --- a/src/primitives.h +++ /dev/null @@ -1,62 +0,0 @@ -#ifndef HONEY_PRIMITIVES_H -#define HONEY_PRIMITIVES H - -/** @file primitives.h - * - * @brief Define various common primitive objects. - */ - -#include "common.h" -#include "mesh.h" - -/** @brief Push table of lua bindings for creating primitives to the stack. */ -void honey_setup_primitives(lua_State* L); - -/** @brief Create a textured plane. - * - * This function creates a plane with vertex positions in attribute 0, - * vertex normals in attribute 1, and UV coordinates in attribute 2. - * - * @param[out] mesh Pointer to the destination mesh - * @param[in] width Desired width of the plane (x-axis) - * @param[in] height Desired height of the plane (y-axis) - * - * @return 0 (HONEY_OK) on success, and an error code otherwise. - */ -honey_result honey_mesh_new_textured_plane(honey_mesh* mesh, - float width, - float height); - -/** @brief Create a cube. - * - * This function creates a cube with vertex positions in attribute 0. - * - * @param[out] mesh Pointer to the destination mesh - * @param[in] width Desired width of the cube (x-axis) - * @param[in] height Desired height of the cube (y-axis) - * @param[in] depth Desired depth of the cube (z-axis) - * - * @return Success or failure code - */ -honey_result honey_mesh_new_cube(honey_mesh* mesh, - float width, - float height, - float depth); -/** @brief Create a textured cube. - * - * This function creates a cube with vertex positions in attribute 0, - * and texture coordinates in attribute 1. - * - * @param[out] mesh Pointer to the destination mesh - * @param[in] width Desired width of the cube (x-axis) - * @param[in] height Desired height of the cube (y-axis) - * @param[in] depth Desired depth of the cube (z-axis) - * - * @return Success or failure code - */ -honey_result honey_mesh_new_textured_cube(honey_mesh* mesh, - float width, - float height, - float depth); - -#endif diff --git a/src/shader.c b/src/shader.c deleted file mode 100644 index eb16929..0000000 --- a/src/shader.c +++ /dev/null @@ -1,276 +0,0 @@ -#include "shader.h" - -int honey_shader_mt_ref = LUA_NOREF; - -void honey_setup_shader(lua_State* L) -{ - honey_lua_create_table - (L, 2, - HONEY_TABLE, "__index", 7, - - /* honey.shader.prototype */ - HONEY_FUNCTION, "use", honey_shader_use, - HONEY_FUNCTION, "setInteger", honey_shader_set_int, - HONEY_FUNCTION, "setFloat", honey_shader_set_float, - HONEY_FUNCTION, "setVec3", honey_shader_set_vec3, - HONEY_FUNCTION, "setVec4", honey_shader_set_vec4, - HONEY_FUNCTION, "setMat3", honey_shader_set_mat3, - HONEY_FUNCTION, "setMat4", honey_shader_set_mat4, - - HONEY_FUNCTION, "__gc", honey_shader_delete); - - honey_shader_mt_ref = luaL_ref(L, LUA_REGISTRYINDEX); - - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_shader_mt_ref); - lua_setfield(L, -2, "shaderMetatable"); - - lua_pushcfunction(L, honey_shader_new); - lua_setfield(L, -2, "shader"); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_shader_new(lua_State* L) -{ - char* vertex_shader_source, *geometry_shader_source, *fragment_shader_source; - int choice = honey_lua_parse_arguments - (L, 2, - 2, HONEY_STRING, &vertex_shader_source, HONEY_STRING, &fragment_shader_source, - 3, - HONEY_STRING, &vertex_shader_source, - HONEY_STRING, &geometry_shader_source, - HONEY_STRING, &fragment_shader_source); - - int success; - char error[1024]; - - int vertex_shader, geometry_shader, fragment_shader; - - /* vertex shader */ - vertex_shader = glCreateShader(GL_VERTEX_SHADER); - glShaderSource(vertex_shader, 1, - (const char* const*) &vertex_shader_source, NULL); - glCompileShader(vertex_shader); - glGetShaderiv(vertex_shader, GL_COMPILE_STATUS, &success); - if (!success) { - glGetShaderInfoLog(vertex_shader, 1024, NULL, error); - honey_lua_throw_error(L, "error compiling vertex shader: %s", - error); - } - - /* geometry shader */ - if (choice == 1) { - geometry_shader = glCreateShader(GL_GEOMETRY_SHADER); - glShaderSource(geometry_shader_source, 1, - (const char* const*) &geometry_shader_source, NULL); - glCompileShader(geometry_shader); - glGetShaderiv(geometry_shader, GL_COMPILE_STATUS, &success); - if (!success) { - glGetShaderInfoLog(geometry_shader, 1024, NULL, error); - honey_lua_throw_error(L, "error compiling geometry shader: %s", - error); - } - } - - /* fragment shader */ - fragment_shader = glCreateShader(GL_FRAGMENT_SHADER); - glShaderSource(fragment_shader, 1, - (const char* const*) &fragment_shader_source, NULL); - glCompileShader(fragment_shader); - glGetShaderiv(fragment_shader, GL_COMPILE_STATUS, &success); - if (!success) { - glGetShaderInfoLog(fragment_shader, 1024, NULL, error); - honey_lua_throw_error(L, "error compiling fragment shader: %s", - error); - } - - int program = glCreateProgram(); - glAttachShader(program, vertex_shader); - if (choice == 1) - glAttachShader(program, geometry_shader); - glAttachShader(program, fragment_shader); - glLinkProgram(program); - - glGetShaderiv(program, GL_LINK_STATUS, &success); - if (!success) { - glGetShaderInfoLog(program, 1024, NULL, error); - honey_lua_throw_error(L, "error linking shader program: %s", - error); - } - - glDeleteShader(vertex_shader); - if (choice == 1) - glDeleteShader(geometry_shader); - glDeleteShader(fragment_shader); - - int* shader = lua_newuserdata(L, sizeof(int)); - *shader = program; - - if (honey_shader_mt_ref == LUA_NOREF || - honey_shader_mt_ref == LUA_REFNIL) - honey_lua_throw_error - (L, "cannot create shader as there is no shader metatable set up."); - - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_shader_mt_ref); - lua_setmetatable(L, -2); - - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_shader_use(lua_State* L) -{ - int *shader; - honey_lua_parse_arguments - (L, 1, - 1, HONEY_USERDATA, &shader); - - glUseProgram(*shader); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_shader_set_int(lua_State* L) -{ - int *shader, value; - char* name; - - honey_lua_parse_arguments - (L, 1, - 3, - HONEY_USERDATA, &shader, - HONEY_STRING, &name, - HONEY_INTEGER, &value); - - glUseProgram(*shader); - unsigned int location = glGetUniformLocation(*shader, name); - glUniform1i(location, value); - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_shader_set_float(lua_State* L) -{ - int *shader; char* name; float value; - honey_lua_parse_arguments - (L, 1, 3, - HONEY_USERDATA, &shader, - HONEY_STRING, &name, - HONEY_NUMBER, &value); - - glUseProgram(*shader); - unsigned int location = glGetUniformLocation(*shader, name); - glUniform1f(location, value); - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_shader_set_vec3(lua_State* L) -{ - int *shader; char* name; honey_glm_array* array; - honey_lua_parse_arguments - (L, 1, 3, - HONEY_USERDATA, &shader, - HONEY_STRING, &name, - HONEY_USERDATA, &array); - - if (array->type != VEC3) - honey_lua_throw_error(L, - "expected glm array of type VEC3 (%d), but got %d instead", - VEC3, - array->type); - - glUseProgram(*shader); - unsigned int location = glGetUniformLocation(*shader, name); - glUniform3fv(location, 1, array->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_shader_set_vec4(lua_State* L) -{ - int *shader; char* name; honey_glm_array* array; - honey_lua_parse_arguments - (L, 1, 3, - HONEY_USERDATA, &shader, - HONEY_STRING, &name, - HONEY_USERDATA, &array); - - if (array->type != VEC4) - honey_lua_throw_error(L, - "expected glm array of type VEC4 (%d), but got %d instead", - VEC4, - array->type); - - glUseProgram(*shader); - unsigned int location = glGetUniformLocation(*shader, name); - glUniform4fv(location, 1, array->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_shader_set_mat3(lua_State* L) -{ - int *shader; char* name; honey_glm_array* array; - honey_lua_parse_arguments - (L, 1, 3, - HONEY_USERDATA, &shader, - HONEY_STRING, &name, - HONEY_USERDATA, &array); - - - if (array->type != MAT3) - honey_lua_throw_error(L, - "expected glm array of type MAT3 (%d), but got %d instead", - MAT3, - array->type); - - glUseProgram(*shader); - unsigned int location = glGetUniformLocation(*shader, name); - glUniformMatrix3fv(location, 1, GL_FALSE, array->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_shader_set_mat4(lua_State* L) -{ - int *shader; char* name; honey_glm_array* array; - honey_lua_parse_arguments - (L, 1, 3, - HONEY_USERDATA, &shader, - HONEY_STRING, &name, - HONEY_USERDATA, &array); - - - if (array->type != MAT4) - honey_lua_throw_error(L, - "expected glm array of type MAT4 (%d), but got %d instead", - MAT4, - array->type); - - glUseProgram(*shader); - unsigned int location = glGetUniformLocation(*shader, name); - glUniformMatrix4fv(location, 1, GL_FALSE, array->data); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_shader_delete(lua_State* L) -{ - int *shader; - honey_lua_parse_arguments - (L, 1, 1, HONEY_USERDATA, &shader); - - glDeleteProgram(*shader); - return 0; -} diff --git a/src/shader.h b/src/shader.h deleted file mode 100644 index ff00954..0000000 --- a/src/shader.h +++ /dev/null @@ -1,103 +0,0 @@ -/** @file shader.h - * - * @brief Functions to create, manipulate, and destroy GLSL shaders. - */ - -#ifndef HONEY_SHADER_H -#define HONEY_SHADER_H - -#include "common.h" - -extern int honey_shader_mt_ref; - -/** @brief Push the shader table to the lua stack. - */ -void honey_setup_shader(lua_State* L); - -/** @brief Create a new shader from source. - * - * @param[in] vertex_source The GLSL code for the vertex shader. - * @param[in, optional] geometry_source The GLSL code for the geometry shader. - * @param[in] fragment_source The GLSL code for the fragment shader. - * - * @returns OpenGL handle for the compiled shader. - */ -int honey_shader_new(lua_State* L); - -/** @brief Set a shader as the current OpenGL shader. - * - * @param[in] shader The OpenGL handle to a shader, as generated by honey.shader.new - * - * @returns Nothing. - */ -int honey_shader_use(lua_State* L); - -/** @brief Set an integer uniform on a shader. - * - * @param[in] shader The OpenGL shader handle. - * @param[in] name The name of the shader uniform as a string. - * @param[in] value The value to set the uniform to. - * - * @returns Nothing. - */ -int honey_shader_set_int(lua_State* L); - -/** @brief Set a float uniform on a shader. - * - * @param[in] shader The OpenGL shader handle. - * @param[in] name The name of the shader uniform as a string. - * @param[in] value The value to set the uniform to. - * - * @returns Nothing. - */ -int honey_shader_set_float(lua_State* L); - -/** @brief Set a vec3 uniform on a shader. - * - * @param[in] shader The OpenGL shader handle. - * @param[in] name The name of the shader uniform as a string. - * @param[in] value The value to set the uniform to. - * - * @returns Nothing. - */ -int honey_shader_set_vec3(lua_State* L); - -/** @brief Set a vec4 uniform on a shader. - * - * @param[in] shader The OpenGL shader handle. - * @param[in] name The name of the shader uniform as a string. - * @param[in] value The value to set the uniform to. - * - * @returns Nothing. - */ -int honey_shader_set_vec4(lua_State* L); - -/** @brief Set a mat3 uniform on a shader. - * - * @param[in] shader The OpenGL shader handle. - * @param[in] name The name of the shader uniform as a string. - * @param[in] value The value to set the uniform to. - * - * @returns Nothing. - */ -int honey_shader_set_mat3(lua_State* L); - -/** @brief Set a mat4 uniform on a shader. - * - * @param[in] shader The OpenGL shader handle. - * @param[in] name The name of the shader uniform as a string. - * @param[in] value The value to set the uniform to. - * - * @returns Nothing. - */ -int honey_shader_set_mat4(lua_State* L); - -/** @brief Delete a shader. - * - * @param[in] shader An OpenGL shader handle. - * - * @returns Nothing. - */ -int honey_shader_delete(lua_State* L); - -#endif diff --git a/src/stb_image/stb_image.c b/src/stb_image/stb_image.c deleted file mode 100644 index 6e5aa1c..0000000 --- a/src/stb_image/stb_image.c +++ /dev/null @@ -1,3 +0,0 @@ -#define STB_IMAGE_IMPLEMENTATION -#include "stb_image.h" - diff --git a/src/stb_image/stb_image.h b/src/stb_image/stb_image.h deleted file mode 100644 index 2857f05..0000000 --- a/src/stb_image/stb_image.h +++ /dev/null @@ -1,7656 +0,0 @@ -/* stb_image - v2.25 - public domain image loader - http://nothings.org/stb - no warranty implied; use at your own risk - - Do this: - #define STB_IMAGE_IMPLEMENTATION - before you include this file in *one* C or C++ file to create the implementation. - - // i.e. it should look like this: - #include ... - #include ... - #include ... - #define STB_IMAGE_IMPLEMENTATION - #include "stb_image.h" - - You can #define STBI_ASSERT(x) before the #include to avoid using assert.h. - And #define STBI_MALLOC, STBI_REALLOC, and STBI_FREE to avoid using malloc,realloc,free - - - QUICK NOTES: - Primarily of interest to game developers and other people who can - avoid problematic images and only need the trivial interface - - JPEG baseline & progressive (12 bpc/arithmetic not supported, same as stock IJG lib) - PNG 1/2/4/8/16-bit-per-channel - - TGA (not sure what subset, if a subset) - BMP non-1bpp, non-RLE - PSD (composited view only, no extra channels, 8/16 bit-per-channel) - - GIF (*comp always reports as 4-channel) - HDR (radiance rgbE format) - PIC (Softimage PIC) - PNM (PPM and PGM binary only) - - Animated GIF still needs a proper API, but here's one way to do it: - http://gist.github.com/urraka/685d9a6340b26b830d49 - - - decode from memory or through FILE (define STBI_NO_STDIO to remove code) - - decode from arbitrary I/O callbacks - - SIMD acceleration on x86/x64 (SSE2) and ARM (NEON) - - Full documentation under "DOCUMENTATION" below. - - -LICENSE - - See end of file for license information. - -RECENT REVISION HISTORY: - - 2.25 (2020-02-02) fix warnings - 2.24 (2020-02-02) fix warnings; thread-local failure_reason and flip_vertically - 2.23 (2019-08-11) fix clang static analysis warning - 2.22 (2019-03-04) gif fixes, fix warnings - 2.21 (2019-02-25) fix typo in comment - 2.20 (2019-02-07) support utf8 filenames in Windows; fix warnings and platform ifdefs - 2.19 (2018-02-11) fix warning - 2.18 (2018-01-30) fix warnings - 2.17 (2018-01-29) bugfix, 1-bit BMP, 16-bitness query, fix warnings - 2.16 (2017-07-23) all functions have 16-bit variants; optimizations; bugfixes - 2.15 (2017-03-18) fix png-1,2,4; all Imagenet JPGs; no runtime SSE detection on GCC - 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs - 2.13 (2016-12-04) experimental 16-bit API, only for PNG so far; fixes - 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes - 2.11 (2016-04-02) 16-bit PNGS; enable SSE2 in non-gcc x64 - RGB-format JPEG; remove white matting in PSD; - allocate large structures on the stack; - correct channel count for PNG & BMP - 2.10 (2016-01-22) avoid warning introduced in 2.09 - 2.09 (2016-01-16) 16-bit TGA; comments in PNM files; STBI_REALLOC_SIZED - - See end of file for full revision history. - - - ============================ Contributors ========================= - - Image formats Extensions, features - Sean Barrett (jpeg, png, bmp) Jetro Lauha (stbi_info) - Nicolas Schulz (hdr, psd) Martin "SpartanJ" Golini (stbi_info) - Jonathan Dummer (tga) James "moose2000" Brown (iPhone PNG) - Jean-Marc Lienher (gif) Ben "Disch" Wenger (io callbacks) - Tom Seddon (pic) Omar Cornut (1/2/4-bit PNG) - Thatcher Ulrich (psd) Nicolas Guillemot (vertical flip) - Ken Miller (pgm, ppm) Richard Mitton (16-bit PSD) - github:urraka (animated gif) Junggon Kim (PNM comments) - Christopher Forseth (animated gif) Daniel Gibson (16-bit TGA) - socks-the-fox (16-bit PNG) - Jeremy Sawicki (handle all ImageNet JPGs) - Optimizations & bugfixes Mikhail Morozov (1-bit BMP) - Fabian "ryg" Giesen Anael Seghezzi (is-16-bit query) - Arseny Kapoulkine - John-Mark Allen - Carmelo J Fdez-Aguera - - Bug & warning fixes - Marc LeBlanc David Woo Guillaume George Martins Mozeiko - Christpher Lloyd Jerry Jansson Joseph Thomson Phil Jordan - Dave Moore Roy Eltham Hayaki Saito Nathan Reed - Won Chun Luke Graham Johan Duparc Nick Verigakis - the Horde3D community Thomas Ruf Ronny Chevalier github:rlyeh - Janez Zemva John Bartholomew Michal Cichon github:romigrou - Jonathan Blow Ken Hamada Tero Hanninen github:svdijk - Laurent Gomila Cort Stratton Sergio Gonzalez github:snagar - Aruelien Pocheville Thibault Reuille Cass Everitt github:Zelex - Ryamond Barbiero Paul Du Bois Engin Manap github:grim210 - Aldo Culquicondor Philipp Wiesemann Dale Weiler github:sammyhw - Oriol Ferrer Mesia Josh Tobin Matthew Gregan github:phprus - Julian Raschke Gregory Mullen Baldur Karlsson github:poppolopoppo - Christian Floisand Kevin Schmidt JR Smith github:darealshinji - Brad Weinberger Matvey Cherevko github:Michaelangel007 - Blazej Dariusz Roszkowski Alexander Veselov -*/ - -#ifndef STBI_INCLUDE_STB_IMAGE_H -#define STBI_INCLUDE_STB_IMAGE_H - -// DOCUMENTATION -// -// Limitations: -// - no 12-bit-per-channel JPEG -// - no JPEGs with arithmetic coding -// - GIF always returns *comp=4 -// -// Basic usage (see HDR discussion below for HDR usage): -// int x,y,n; -// unsigned char *data = stbi_load(filename, &x, &y, &n, 0); -// // ... process data if not NULL ... -// // ... x = width, y = height, n = # 8-bit components per pixel ... -// // ... replace '0' with '1'..'4' to force that many components per pixel -// // ... but 'n' will always be the number that it would have been if you said 0 -// stbi_image_free(data) -// -// Standard parameters: -// int *x -- outputs image width in pixels -// int *y -- outputs image height in pixels -// int *channels_in_file -- outputs # of image components in image file -// int desired_channels -- if non-zero, # of image components requested in result -// -// The return value from an image loader is an 'unsigned char *' which points -// to the pixel data, or NULL on an allocation failure or if the image is -// corrupt or invalid. The pixel data consists of *y scanlines of *x pixels, -// with each pixel consisting of N interleaved 8-bit components; the first -// pixel pointed to is top-left-most in the image. There is no padding between -// image scanlines or between pixels, regardless of format. The number of -// components N is 'desired_channels' if desired_channels is non-zero, or -// *channels_in_file otherwise. If desired_channels is non-zero, -// *channels_in_file has the number of components that _would_ have been -// output otherwise. E.g. if you set desired_channels to 4, you will always -// get RGBA output, but you can check *channels_in_file to see if it's trivially -// opaque because e.g. there were only 3 channels in the source image. -// -// An output image with N components has the following components interleaved -// in this order in each pixel: -// -// N=#comp components -// 1 grey -// 2 grey, alpha -// 3 red, green, blue -// 4 red, green, blue, alpha -// -// If image loading fails for any reason, the return value will be NULL, -// and *x, *y, *channels_in_file will be unchanged. The function -// stbi_failure_reason() can be queried for an extremely brief, end-user -// unfriendly explanation of why the load failed. Define STBI_NO_FAILURE_STRINGS -// to avoid compiling these strings at all, and STBI_FAILURE_USERMSG to get slightly -// more user-friendly ones. -// -// Paletted PNG, BMP, GIF, and PIC images are automatically depalettized. -// -// =========================================================================== -// -// UNICODE: -// -// If compiling for Windows and you wish to use Unicode filenames, compile -// with -// #define STBI_WINDOWS_UTF8 -// and pass utf8-encoded filenames. Call stbi_convert_wchar_to_utf8 to convert -// Windows wchar_t filenames to utf8. -// -// =========================================================================== -// -// Philosophy -// -// stb libraries are designed with the following priorities: -// -// 1. easy to use -// 2. easy to maintain -// 3. good performance -// -// Sometimes I let "good performance" creep up in priority over "easy to maintain", -// and for best performance I may provide less-easy-to-use APIs that give higher -// performance, in addition to the easy-to-use ones. Nevertheless, it's important -// to keep in mind that from the standpoint of you, a client of this library, -// all you care about is #1 and #3, and stb libraries DO NOT emphasize #3 above all. -// -// Some secondary priorities arise directly from the first two, some of which -// provide more explicit reasons why performance can't be emphasized. -// -// - Portable ("ease of use") -// - Small source code footprint ("easy to maintain") -// - No dependencies ("ease of use") -// -// =========================================================================== -// -// I/O callbacks -// -// I/O callbacks allow you to read from arbitrary sources, like packaged -// files or some other source. Data read from callbacks are processed -// through a small internal buffer (currently 128 bytes) to try to reduce -// overhead. -// -// The three functions you must define are "read" (reads some bytes of data), -// "skip" (skips some bytes of data), "eof" (reports if the stream is at the end). -// -// =========================================================================== -// -// SIMD support -// -// The JPEG decoder will try to automatically use SIMD kernels on x86 when -// supported by the compiler. For ARM Neon support, you must explicitly -// request it. -// -// (The old do-it-yourself SIMD API is no longer supported in the current -// code.) -// -// On x86, SSE2 will automatically be used when available based on a run-time -// test; if not, the generic C versions are used as a fall-back. On ARM targets, -// the typical path is to have separate builds for NEON and non-NEON devices -// (at least this is true for iOS and Android). Therefore, the NEON support is -// toggled by a build flag: define STBI_NEON to get NEON loops. -// -// If for some reason you do not want to use any of SIMD code, or if -// you have issues compiling it, you can disable it entirely by -// defining STBI_NO_SIMD. -// -// =========================================================================== -// -// HDR image support (disable by defining STBI_NO_HDR) -// -// stb_image supports loading HDR images in general, and currently the Radiance -// .HDR file format specifically. You can still load any file through the existing -// interface; if you attempt to load an HDR file, it will be automatically remapped -// to LDR, assuming gamma 2.2 and an arbitrary scale factor defaulting to 1; -// both of these constants can be reconfigured through this interface: -// -// stbi_hdr_to_ldr_gamma(2.2f); -// stbi_hdr_to_ldr_scale(1.0f); -// -// (note, do not use _inverse_ constants; stbi_image will invert them -// appropriately). -// -// Additionally, there is a new, parallel interface for loading files as -// (linear) floats to preserve the full dynamic range: -// -// float *data = stbi_loadf(filename, &x, &y, &n, 0); -// -// If you load LDR images through this interface, those images will -// be promoted to floating point values, run through the inverse of -// constants corresponding to the above: -// -// stbi_ldr_to_hdr_scale(1.0f); -// stbi_ldr_to_hdr_gamma(2.2f); -// -// Finally, given a filename (or an open file or memory block--see header -// file for details) containing image data, you can query for the "most -// appropriate" interface to use (that is, whether the image is HDR or -// not), using: -// -// stbi_is_hdr(char *filename); -// -// =========================================================================== -// -// iPhone PNG support: -// -// By default we convert iphone-formatted PNGs back to RGB, even though -// they are internally encoded differently. You can disable this conversion -// by calling stbi_convert_iphone_png_to_rgb(0), in which case -// you will always just get the native iphone "format" through (which -// is BGR stored in RGB). -// -// Call stbi_set_unpremultiply_on_load(1) as well to force a divide per -// pixel to remove any premultiplied alpha *only* if the image file explicitly -// says there's premultiplied data (currently only happens in iPhone images, -// and only if iPhone convert-to-rgb processing is on). -// -// =========================================================================== -// -// ADDITIONAL CONFIGURATION -// -// - You can suppress implementation of any of the decoders to reduce -// your code footprint by #defining one or more of the following -// symbols before creating the implementation. -// -// STBI_NO_JPEG -// STBI_NO_PNG -// STBI_NO_BMP -// STBI_NO_PSD -// STBI_NO_TGA -// STBI_NO_GIF -// STBI_NO_HDR -// STBI_NO_PIC -// STBI_NO_PNM (.ppm and .pgm) -// -// - You can request *only* certain decoders and suppress all other ones -// (this will be more forward-compatible, as addition of new decoders -// doesn't require you to disable them explicitly): -// -// STBI_ONLY_JPEG -// STBI_ONLY_PNG -// STBI_ONLY_BMP -// STBI_ONLY_PSD -// STBI_ONLY_TGA -// STBI_ONLY_GIF -// STBI_ONLY_HDR -// STBI_ONLY_PIC -// STBI_ONLY_PNM (.ppm and .pgm) -// -// - If you use STBI_NO_PNG (or _ONLY_ without PNG), and you still -// want the zlib decoder to be available, #define STBI_SUPPORT_ZLIB -// - - -#ifndef STBI_NO_STDIO -#include <stdio.h> -#endif // STBI_NO_STDIO - -#define STBI_VERSION 1 - -enum -{ - STBI_default = 0, // only used for desired_channels - - STBI_grey = 1, - STBI_grey_alpha = 2, - STBI_rgb = 3, - STBI_rgb_alpha = 4 -}; - -#include <stdlib.h> -typedef unsigned char stbi_uc; -typedef unsigned short stbi_us; - -#ifdef __cplusplus -extern "C" { -#endif - -#ifndef STBIDEF -#ifdef STB_IMAGE_STATIC -#define STBIDEF static -#else -#define STBIDEF extern -#endif -#endif - -////////////////////////////////////////////////////////////////////////////// -// -// PRIMARY API - works on images of any type -// - -// -// load image by filename, open file, or memory buffer -// - -typedef struct -{ - int (*read) (void *user,char *data,int size); // fill 'data' with 'size' bytes. return number of bytes actually read - void (*skip) (void *user,int n); // skip the next 'n' bytes, or 'unget' the last -n bytes if negative - int (*eof) (void *user); // returns nonzero if we are at end of file/data -} stbi_io_callbacks; - -//////////////////////////////////// -// -// 8-bits-per-channel interface -// - -STBIDEF stbi_uc *stbi_load_from_memory (stbi_uc const *buffer, int len , int *x, int *y, int *channels_in_file, int desired_channels); -STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk , void *user, int *x, int *y, int *channels_in_file, int desired_channels); - -#ifndef STBI_NO_STDIO -STBIDEF stbi_uc *stbi_load (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); -STBIDEF stbi_uc *stbi_load_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); -// for stbi_load_from_file, file pointer is left pointing immediately after image -#endif - -#ifndef STBI_NO_GIF -STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp); -#endif - -#ifdef STBI_WINDOWS_UTF8 -STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input); -#endif - -//////////////////////////////////// -// -// 16-bits-per-channel interface -// - -STBIDEF stbi_us *stbi_load_16_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels); -STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels); - -#ifndef STBI_NO_STDIO -STBIDEF stbi_us *stbi_load_16 (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); -STBIDEF stbi_us *stbi_load_from_file_16(FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); -#endif - -//////////////////////////////////// -// -// float-per-channel interface -// -#ifndef STBI_NO_LINEAR - STBIDEF float *stbi_loadf_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels); - STBIDEF float *stbi_loadf_from_callbacks (stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels); - - #ifndef STBI_NO_STDIO - STBIDEF float *stbi_loadf (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); - STBIDEF float *stbi_loadf_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); - #endif -#endif - -#ifndef STBI_NO_HDR - STBIDEF void stbi_hdr_to_ldr_gamma(float gamma); - STBIDEF void stbi_hdr_to_ldr_scale(float scale); -#endif // STBI_NO_HDR - -#ifndef STBI_NO_LINEAR - STBIDEF void stbi_ldr_to_hdr_gamma(float gamma); - STBIDEF void stbi_ldr_to_hdr_scale(float scale); -#endif // STBI_NO_LINEAR - -// stbi_is_hdr is always defined, but always returns false if STBI_NO_HDR -STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user); -STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len); -#ifndef STBI_NO_STDIO -STBIDEF int stbi_is_hdr (char const *filename); -STBIDEF int stbi_is_hdr_from_file(FILE *f); -#endif // STBI_NO_STDIO - - -// get a VERY brief reason for failure -// on most compilers (and ALL modern mainstream compilers) this is threadsafe -STBIDEF const char *stbi_failure_reason (void); - -// free the loaded image -- this is just free() -STBIDEF void stbi_image_free (void *retval_from_stbi_load); - -// get image dimensions & components without fully decoding -STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp); -STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp); -STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len); -STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *clbk, void *user); - -#ifndef STBI_NO_STDIO -STBIDEF int stbi_info (char const *filename, int *x, int *y, int *comp); -STBIDEF int stbi_info_from_file (FILE *f, int *x, int *y, int *comp); -STBIDEF int stbi_is_16_bit (char const *filename); -STBIDEF int stbi_is_16_bit_from_file(FILE *f); -#endif - - - -// for image formats that explicitly notate that they have premultiplied alpha, -// we just return the colors as stored in the file. set this flag to force -// unpremultiplication. results are undefined if the unpremultiply overflow. -STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply); - -// indicate whether we should process iphone images back to canonical format, -// or just pass them through "as-is" -STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert); - -// flip the image vertically, so the first pixel in the output array is the bottom left -STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip); - -// as above, but only applies to images loaded on the thread that calls the function -// this function is only available if your compiler supports thread-local variables; -// calling it will fail to link if your compiler doesn't -STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip); - -// ZLIB client - used by PNG, available for other purposes - -STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen); -STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header); -STBIDEF char *stbi_zlib_decode_malloc(const char *buffer, int len, int *outlen); -STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); - -STBIDEF char *stbi_zlib_decode_noheader_malloc(const char *buffer, int len, int *outlen); -STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); - - -#ifdef __cplusplus -} -#endif - -// -// -//// end header file ///////////////////////////////////////////////////// -#endif // STBI_INCLUDE_STB_IMAGE_H - -#ifdef STB_IMAGE_IMPLEMENTATION - -#if defined(STBI_ONLY_JPEG) || defined(STBI_ONLY_PNG) || defined(STBI_ONLY_BMP) \ - || defined(STBI_ONLY_TGA) || defined(STBI_ONLY_GIF) || defined(STBI_ONLY_PSD) \ - || defined(STBI_ONLY_HDR) || defined(STBI_ONLY_PIC) || defined(STBI_ONLY_PNM) \ - || defined(STBI_ONLY_ZLIB) - #ifndef STBI_ONLY_JPEG - #define STBI_NO_JPEG - #endif - #ifndef STBI_ONLY_PNG - #define STBI_NO_PNG - #endif - #ifndef STBI_ONLY_BMP - #define STBI_NO_BMP - #endif - #ifndef STBI_ONLY_PSD - #define STBI_NO_PSD - #endif - #ifndef STBI_ONLY_TGA - #define STBI_NO_TGA - #endif - #ifndef STBI_ONLY_GIF - #define STBI_NO_GIF - #endif - #ifndef STBI_ONLY_HDR - #define STBI_NO_HDR - #endif - #ifndef STBI_ONLY_PIC - #define STBI_NO_PIC - #endif - #ifndef STBI_ONLY_PNM - #define STBI_NO_PNM - #endif -#endif - -#if defined(STBI_NO_PNG) && !defined(STBI_SUPPORT_ZLIB) && !defined(STBI_NO_ZLIB) -#define STBI_NO_ZLIB -#endif - - -#include <stdarg.h> -#include <stddef.h> // ptrdiff_t on osx -#include <stdlib.h> -#include <string.h> -#include <limits.h> - -#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) -#include <math.h> // ldexp, pow -#endif - -#ifndef STBI_NO_STDIO -#include <stdio.h> -#endif - -#ifndef STBI_ASSERT -#include <assert.h> -#define STBI_ASSERT(x) assert(x) -#endif - -#ifdef __cplusplus -#define STBI_EXTERN extern "C" -#else -#define STBI_EXTERN extern -#endif - - -#ifndef _MSC_VER - #ifdef __cplusplus - #define stbi_inline inline - #else - #define stbi_inline - #endif -#else - #define stbi_inline __forceinline -#endif - -#ifndef STBI_NO_THREAD_LOCALS - #if defined(__cplusplus) && __cplusplus >= 201103L - #define STBI_THREAD_LOCAL thread_local - #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L - #define STBI_THREAD_LOCAL _Thread_local - #elif defined(__GNUC__) - #define STBI_THREAD_LOCAL __thread - #elif defined(_MSC_VER) - #define STBI_THREAD_LOCAL __declspec(thread) -#endif -#endif - -#ifdef _MSC_VER -typedef unsigned short stbi__uint16; -typedef signed short stbi__int16; -typedef unsigned int stbi__uint32; -typedef signed int stbi__int32; -#else -#include <stdint.h> -typedef uint16_t stbi__uint16; -typedef int16_t stbi__int16; -typedef uint32_t stbi__uint32; -typedef int32_t stbi__int32; -#endif - -// should produce compiler error if size is wrong -typedef unsigned char validate_uint32[sizeof(stbi__uint32)==4 ? 1 : -1]; - -#ifdef _MSC_VER -#define STBI_NOTUSED(v) (void)(v) -#else -#define STBI_NOTUSED(v) (void)sizeof(v) -#endif - -#ifdef _MSC_VER -#define STBI_HAS_LROTL -#endif - -#ifdef STBI_HAS_LROTL - #define stbi_lrot(x,y) _lrotl(x,y) -#else - #define stbi_lrot(x,y) (((x) << (y)) | ((x) >> (32 - (y)))) -#endif - -#if defined(STBI_MALLOC) && defined(STBI_FREE) && (defined(STBI_REALLOC) || defined(STBI_REALLOC_SIZED)) -// ok -#elif !defined(STBI_MALLOC) && !defined(STBI_FREE) && !defined(STBI_REALLOC) && !defined(STBI_REALLOC_SIZED) -// ok -#else -#error "Must define all or none of STBI_MALLOC, STBI_FREE, and STBI_REALLOC (or STBI_REALLOC_SIZED)." -#endif - -#ifndef STBI_MALLOC -#define STBI_MALLOC(sz) malloc(sz) -#define STBI_REALLOC(p,newsz) realloc(p,newsz) -#define STBI_FREE(p) free(p) -#endif - -#ifndef STBI_REALLOC_SIZED -#define STBI_REALLOC_SIZED(p,oldsz,newsz) STBI_REALLOC(p,newsz) -#endif - -// x86/x64 detection -#if defined(__x86_64__) || defined(_M_X64) -#define STBI__X64_TARGET -#elif defined(__i386) || defined(_M_IX86) -#define STBI__X86_TARGET -#endif - -#if defined(__GNUC__) && defined(STBI__X86_TARGET) && !defined(__SSE2__) && !defined(STBI_NO_SIMD) -// gcc doesn't support sse2 intrinsics unless you compile with -msse2, -// which in turn means it gets to use SSE2 everywhere. This is unfortunate, -// but previous attempts to provide the SSE2 functions with runtime -// detection caused numerous issues. The way architecture extensions are -// exposed in GCC/Clang is, sadly, not really suited for one-file libs. -// New behavior: if compiled with -msse2, we use SSE2 without any -// detection; if not, we don't use it at all. -#define STBI_NO_SIMD -#endif - -#if defined(__MINGW32__) && defined(STBI__X86_TARGET) && !defined(STBI_MINGW_ENABLE_SSE2) && !defined(STBI_NO_SIMD) -// Note that __MINGW32__ doesn't actually mean 32-bit, so we have to avoid STBI__X64_TARGET -// -// 32-bit MinGW wants ESP to be 16-byte aligned, but this is not in the -// Windows ABI and VC++ as well as Windows DLLs don't maintain that invariant. -// As a result, enabling SSE2 on 32-bit MinGW is dangerous when not -// simultaneously enabling "-mstackrealign". -// -// See https://github.com/nothings/stb/issues/81 for more information. -// -// So default to no SSE2 on 32-bit MinGW. If you've read this far and added -// -mstackrealign to your build settings, feel free to #define STBI_MINGW_ENABLE_SSE2. -#define STBI_NO_SIMD -#endif - -#if !defined(STBI_NO_SIMD) && (defined(STBI__X86_TARGET) || defined(STBI__X64_TARGET)) -#define STBI_SSE2 -#include <emmintrin.h> - -#ifdef _MSC_VER - -#if _MSC_VER >= 1400 // not VC6 -#include <intrin.h> // __cpuid -static int stbi__cpuid3(void) -{ - int info[4]; - __cpuid(info,1); - return info[3]; -} -#else -static int stbi__cpuid3(void) -{ - int res; - __asm { - mov eax,1 - cpuid - mov res,edx - } - return res; -} -#endif - -#define STBI_SIMD_ALIGN(type, name) __declspec(align(16)) type name - -#if !defined(STBI_NO_JPEG) && defined(STBI_SSE2) -static int stbi__sse2_available(void) -{ - int info3 = stbi__cpuid3(); - return ((info3 >> 26) & 1) != 0; -} -#endif - -#else // assume GCC-style if not VC++ -#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16))) - -#if !defined(STBI_NO_JPEG) && defined(STBI_SSE2) -static int stbi__sse2_available(void) -{ - // If we're even attempting to compile this on GCC/Clang, that means - // -msse2 is on, which means the compiler is allowed to use SSE2 - // instructions at will, and so are we. - return 1; -} -#endif - -#endif -#endif - -// ARM NEON -#if defined(STBI_NO_SIMD) && defined(STBI_NEON) -#undef STBI_NEON -#endif - -#ifdef STBI_NEON -#include <arm_neon.h> -// assume GCC or Clang on ARM targets -#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16))) -#endif - -#ifndef STBI_SIMD_ALIGN -#define STBI_SIMD_ALIGN(type, name) type name -#endif - -/////////////////////////////////////////////// -// -// stbi__context struct and start_xxx functions - -// stbi__context structure is our basic context used by all images, so it -// contains all the IO context, plus some basic image information -typedef struct -{ - stbi__uint32 img_x, img_y; - int img_n, img_out_n; - - stbi_io_callbacks io; - void *io_user_data; - - int read_from_callbacks; - int buflen; - stbi_uc buffer_start[128]; - - stbi_uc *img_buffer, *img_buffer_end; - stbi_uc *img_buffer_original, *img_buffer_original_end; -} stbi__context; - - -static void stbi__refill_buffer(stbi__context *s); - -// initialize a memory-decode context -static void stbi__start_mem(stbi__context *s, stbi_uc const *buffer, int len) -{ - s->io.read = NULL; - s->read_from_callbacks = 0; - s->img_buffer = s->img_buffer_original = (stbi_uc *) buffer; - s->img_buffer_end = s->img_buffer_original_end = (stbi_uc *) buffer+len; -} - -// initialize a callback-based context -static void stbi__start_callbacks(stbi__context *s, stbi_io_callbacks *c, void *user) -{ - s->io = *c; - s->io_user_data = user; - s->buflen = sizeof(s->buffer_start); - s->read_from_callbacks = 1; - s->img_buffer_original = s->buffer_start; - stbi__refill_buffer(s); - s->img_buffer_original_end = s->img_buffer_end; -} - -#ifndef STBI_NO_STDIO - -static int stbi__stdio_read(void *user, char *data, int size) -{ - return (int) fread(data,1,size,(FILE*) user); -} - -static void stbi__stdio_skip(void *user, int n) -{ - fseek((FILE*) user, n, SEEK_CUR); -} - -static int stbi__stdio_eof(void *user) -{ - return feof((FILE*) user); -} - -static stbi_io_callbacks stbi__stdio_callbacks = -{ - stbi__stdio_read, - stbi__stdio_skip, - stbi__stdio_eof, -}; - -static void stbi__start_file(stbi__context *s, FILE *f) -{ - stbi__start_callbacks(s, &stbi__stdio_callbacks, (void *) f); -} - -//static void stop_file(stbi__context *s) { } - -#endif // !STBI_NO_STDIO - -static void stbi__rewind(stbi__context *s) -{ - // conceptually rewind SHOULD rewind to the beginning of the stream, - // but we just rewind to the beginning of the initial buffer, because - // we only use it after doing 'test', which only ever looks at at most 92 bytes - s->img_buffer = s->img_buffer_original; - s->img_buffer_end = s->img_buffer_original_end; -} - -enum -{ - STBI_ORDER_RGB, - STBI_ORDER_BGR -}; - -typedef struct -{ - int bits_per_channel; - int num_channels; - int channel_order; -} stbi__result_info; - -#ifndef STBI_NO_JPEG -static int stbi__jpeg_test(stbi__context *s); -static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); -static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp); -#endif - -#ifndef STBI_NO_PNG -static int stbi__png_test(stbi__context *s); -static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); -static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp); -static int stbi__png_is16(stbi__context *s); -#endif - -#ifndef STBI_NO_BMP -static int stbi__bmp_test(stbi__context *s); -static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); -static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp); -#endif - -#ifndef STBI_NO_TGA -static int stbi__tga_test(stbi__context *s); -static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); -static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp); -#endif - -#ifndef STBI_NO_PSD -static int stbi__psd_test(stbi__context *s); -static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc); -static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp); -static int stbi__psd_is16(stbi__context *s); -#endif - -#ifndef STBI_NO_HDR -static int stbi__hdr_test(stbi__context *s); -static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); -static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp); -#endif - -#ifndef STBI_NO_PIC -static int stbi__pic_test(stbi__context *s); -static void *stbi__pic_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); -static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp); -#endif - -#ifndef STBI_NO_GIF -static int stbi__gif_test(stbi__context *s); -static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); -static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp); -static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp); -#endif - -#ifndef STBI_NO_PNM -static int stbi__pnm_test(stbi__context *s); -static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); -static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp); -#endif - -static -#ifdef STBI_THREAD_LOCAL -STBI_THREAD_LOCAL -#endif -const char *stbi__g_failure_reason; - -STBIDEF const char *stbi_failure_reason(void) -{ - return stbi__g_failure_reason; -} - -#ifndef STBI_NO_FAILURE_STRINGS -static int stbi__err(const char *str) -{ - stbi__g_failure_reason = str; - return 0; -} -#endif - -static void *stbi__malloc(size_t size) -{ - return STBI_MALLOC(size); -} - -// stb_image uses ints pervasively, including for offset calculations. -// therefore the largest decoded image size we can support with the -// current code, even on 64-bit targets, is INT_MAX. this is not a -// significant limitation for the intended use case. -// -// we do, however, need to make sure our size calculations don't -// overflow. hence a few helper functions for size calculations that -// multiply integers together, making sure that they're non-negative -// and no overflow occurs. - -// return 1 if the sum is valid, 0 on overflow. -// negative terms are considered invalid. -static int stbi__addsizes_valid(int a, int b) -{ - if (b < 0) return 0; - // now 0 <= b <= INT_MAX, hence also - // 0 <= INT_MAX - b <= INTMAX. - // And "a + b <= INT_MAX" (which might overflow) is the - // same as a <= INT_MAX - b (no overflow) - return a <= INT_MAX - b; -} - -// returns 1 if the product is valid, 0 on overflow. -// negative factors are considered invalid. -static int stbi__mul2sizes_valid(int a, int b) -{ - if (a < 0 || b < 0) return 0; - if (b == 0) return 1; // mul-by-0 is always safe - // portable way to check for no overflows in a*b - return a <= INT_MAX/b; -} - -#if !defined(STBI_NO_JPEG) || !defined(STBI_NO_PNG) || !defined(STBI_NO_TGA) || !defined(STBI_NO_HDR) -// returns 1 if "a*b + add" has no negative terms/factors and doesn't overflow -static int stbi__mad2sizes_valid(int a, int b, int add) -{ - return stbi__mul2sizes_valid(a, b) && stbi__addsizes_valid(a*b, add); -} -#endif - -// returns 1 if "a*b*c + add" has no negative terms/factors and doesn't overflow -static int stbi__mad3sizes_valid(int a, int b, int c, int add) -{ - return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) && - stbi__addsizes_valid(a*b*c, add); -} - -// returns 1 if "a*b*c*d + add" has no negative terms/factors and doesn't overflow -#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) -static int stbi__mad4sizes_valid(int a, int b, int c, int d, int add) -{ - return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) && - stbi__mul2sizes_valid(a*b*c, d) && stbi__addsizes_valid(a*b*c*d, add); -} -#endif - -#if !defined(STBI_NO_JPEG) || !defined(STBI_NO_PNG) || !defined(STBI_NO_TGA) || !defined(STBI_NO_HDR) -// mallocs with size overflow checking -static void *stbi__malloc_mad2(int a, int b, int add) -{ - if (!stbi__mad2sizes_valid(a, b, add)) return NULL; - return stbi__malloc(a*b + add); -} -#endif - -static void *stbi__malloc_mad3(int a, int b, int c, int add) -{ - if (!stbi__mad3sizes_valid(a, b, c, add)) return NULL; - return stbi__malloc(a*b*c + add); -} - -#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) -static void *stbi__malloc_mad4(int a, int b, int c, int d, int add) -{ - if (!stbi__mad4sizes_valid(a, b, c, d, add)) return NULL; - return stbi__malloc(a*b*c*d + add); -} -#endif - -// stbi__err - error -// stbi__errpf - error returning pointer to float -// stbi__errpuc - error returning pointer to unsigned char - -#ifdef STBI_NO_FAILURE_STRINGS - #define stbi__err(x,y) 0 -#elif defined(STBI_FAILURE_USERMSG) - #define stbi__err(x,y) stbi__err(y) -#else - #define stbi__err(x,y) stbi__err(x) -#endif - -#define stbi__errpf(x,y) ((float *)(size_t) (stbi__err(x,y)?NULL:NULL)) -#define stbi__errpuc(x,y) ((unsigned char *)(size_t) (stbi__err(x,y)?NULL:NULL)) - -STBIDEF void stbi_image_free(void *retval_from_stbi_load) -{ - STBI_FREE(retval_from_stbi_load); -} - -#ifndef STBI_NO_LINEAR -static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp); -#endif - -#ifndef STBI_NO_HDR -static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp); -#endif - -static int stbi__vertically_flip_on_load_global = 0; - -STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip) -{ - stbi__vertically_flip_on_load_global = flag_true_if_should_flip; -} - -#ifndef STBI_THREAD_LOCAL -#define stbi__vertically_flip_on_load stbi__vertically_flip_on_load_global -#else -static STBI_THREAD_LOCAL int stbi__vertically_flip_on_load_local, stbi__vertically_flip_on_load_set; - -STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip) -{ - stbi__vertically_flip_on_load_local = flag_true_if_should_flip; - stbi__vertically_flip_on_load_set = 1; -} - -#define stbi__vertically_flip_on_load (stbi__vertically_flip_on_load_set \ - ? stbi__vertically_flip_on_load_local \ - : stbi__vertically_flip_on_load_global) -#endif // STBI_THREAD_LOCAL - -static void *stbi__load_main(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc) -{ - memset(ri, 0, sizeof(*ri)); // make sure it's initialized if we add new fields - ri->bits_per_channel = 8; // default is 8 so most paths don't have to be changed - ri->channel_order = STBI_ORDER_RGB; // all current input & output are this, but this is here so we can add BGR order - ri->num_channels = 0; - - #ifndef STBI_NO_JPEG - if (stbi__jpeg_test(s)) return stbi__jpeg_load(s,x,y,comp,req_comp, ri); - #endif - #ifndef STBI_NO_PNG - if (stbi__png_test(s)) return stbi__png_load(s,x,y,comp,req_comp, ri); - #endif - #ifndef STBI_NO_BMP - if (stbi__bmp_test(s)) return stbi__bmp_load(s,x,y,comp,req_comp, ri); - #endif - #ifndef STBI_NO_GIF - if (stbi__gif_test(s)) return stbi__gif_load(s,x,y,comp,req_comp, ri); - #endif - #ifndef STBI_NO_PSD - if (stbi__psd_test(s)) return stbi__psd_load(s,x,y,comp,req_comp, ri, bpc); - #else - STBI_NOTUSED(bpc); - #endif - #ifndef STBI_NO_PIC - if (stbi__pic_test(s)) return stbi__pic_load(s,x,y,comp,req_comp, ri); - #endif - #ifndef STBI_NO_PNM - if (stbi__pnm_test(s)) return stbi__pnm_load(s,x,y,comp,req_comp, ri); - #endif - - #ifndef STBI_NO_HDR - if (stbi__hdr_test(s)) { - float *hdr = stbi__hdr_load(s, x,y,comp,req_comp, ri); - return stbi__hdr_to_ldr(hdr, *x, *y, req_comp ? req_comp : *comp); - } - #endif - - #ifndef STBI_NO_TGA - // test tga last because it's a crappy test! - if (stbi__tga_test(s)) - return stbi__tga_load(s,x,y,comp,req_comp, ri); - #endif - - return stbi__errpuc("unknown image type", "Image not of any known type, or corrupt"); -} - -static stbi_uc *stbi__convert_16_to_8(stbi__uint16 *orig, int w, int h, int channels) -{ - int i; - int img_len = w * h * channels; - stbi_uc *reduced; - - reduced = (stbi_uc *) stbi__malloc(img_len); - if (reduced == NULL) return stbi__errpuc("outofmem", "Out of memory"); - - for (i = 0; i < img_len; ++i) - reduced[i] = (stbi_uc)((orig[i] >> 8) & 0xFF); // top half of each byte is sufficient approx of 16->8 bit scaling - - STBI_FREE(orig); - return reduced; -} - -static stbi__uint16 *stbi__convert_8_to_16(stbi_uc *orig, int w, int h, int channels) -{ - int i; - int img_len = w * h * channels; - stbi__uint16 *enlarged; - - enlarged = (stbi__uint16 *) stbi__malloc(img_len*2); - if (enlarged == NULL) return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory"); - - for (i = 0; i < img_len; ++i) - enlarged[i] = (stbi__uint16)((orig[i] << 8) + orig[i]); // replicate to high and low byte, maps 0->0, 255->0xffff - - STBI_FREE(orig); - return enlarged; -} - -static void stbi__vertical_flip(void *image, int w, int h, int bytes_per_pixel) -{ - int row; - size_t bytes_per_row = (size_t)w * bytes_per_pixel; - stbi_uc temp[2048]; - stbi_uc *bytes = (stbi_uc *)image; - - for (row = 0; row < (h>>1); row++) { - stbi_uc *row0 = bytes + row*bytes_per_row; - stbi_uc *row1 = bytes + (h - row - 1)*bytes_per_row; - // swap row0 with row1 - size_t bytes_left = bytes_per_row; - while (bytes_left) { - size_t bytes_copy = (bytes_left < sizeof(temp)) ? bytes_left : sizeof(temp); - memcpy(temp, row0, bytes_copy); - memcpy(row0, row1, bytes_copy); - memcpy(row1, temp, bytes_copy); - row0 += bytes_copy; - row1 += bytes_copy; - bytes_left -= bytes_copy; - } - } -} - -#ifndef STBI_NO_GIF -static void stbi__vertical_flip_slices(void *image, int w, int h, int z, int bytes_per_pixel) -{ - int slice; - int slice_size = w * h * bytes_per_pixel; - - stbi_uc *bytes = (stbi_uc *)image; - for (slice = 0; slice < z; ++slice) { - stbi__vertical_flip(bytes, w, h, bytes_per_pixel); - bytes += slice_size; - } -} -#endif - -static unsigned char *stbi__load_and_postprocess_8bit(stbi__context *s, int *x, int *y, int *comp, int req_comp) -{ - stbi__result_info ri; - void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 8); - - if (result == NULL) - return NULL; - - if (ri.bits_per_channel != 8) { - STBI_ASSERT(ri.bits_per_channel == 16); - result = stbi__convert_16_to_8((stbi__uint16 *) result, *x, *y, req_comp == 0 ? *comp : req_comp); - ri.bits_per_channel = 8; - } - - // @TODO: move stbi__convert_format to here - - if (stbi__vertically_flip_on_load) { - int channels = req_comp ? req_comp : *comp; - stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi_uc)); - } - - return (unsigned char *) result; -} - -static stbi__uint16 *stbi__load_and_postprocess_16bit(stbi__context *s, int *x, int *y, int *comp, int req_comp) -{ - stbi__result_info ri; - void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 16); - - if (result == NULL) - return NULL; - - if (ri.bits_per_channel != 16) { - STBI_ASSERT(ri.bits_per_channel == 8); - result = stbi__convert_8_to_16((stbi_uc *) result, *x, *y, req_comp == 0 ? *comp : req_comp); - ri.bits_per_channel = 16; - } - - // @TODO: move stbi__convert_format16 to here - // @TODO: special case RGB-to-Y (and RGBA-to-YA) for 8-bit-to-16-bit case to keep more precision - - if (stbi__vertically_flip_on_load) { - int channels = req_comp ? req_comp : *comp; - stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi__uint16)); - } - - return (stbi__uint16 *) result; -} - -#if !defined(STBI_NO_HDR) && !defined(STBI_NO_LINEAR) -static void stbi__float_postprocess(float *result, int *x, int *y, int *comp, int req_comp) -{ - if (stbi__vertically_flip_on_load && result != NULL) { - int channels = req_comp ? req_comp : *comp; - stbi__vertical_flip(result, *x, *y, channels * sizeof(float)); - } -} -#endif - -#ifndef STBI_NO_STDIO - -#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) -STBI_EXTERN __declspec(dllimport) int __stdcall MultiByteToWideChar(unsigned int cp, unsigned long flags, const char *str, int cbmb, wchar_t *widestr, int cchwide); -STBI_EXTERN __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int cp, unsigned long flags, const wchar_t *widestr, int cchwide, char *str, int cbmb, const char *defchar, int *used_default); -#endif - -#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) -STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input) -{ - return WideCharToMultiByte(65001 /* UTF8 */, 0, input, -1, buffer, (int) bufferlen, NULL, NULL); -} -#endif - -static FILE *stbi__fopen(char const *filename, char const *mode) -{ - FILE *f; -#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) - wchar_t wMode[64]; - wchar_t wFilename[1024]; - if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, filename, -1, wFilename, sizeof(wFilename))) - return 0; - - if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, mode, -1, wMode, sizeof(wMode))) - return 0; - -#if _MSC_VER >= 1400 - if (0 != _wfopen_s(&f, wFilename, wMode)) - f = 0; -#else - f = _wfopen(wFilename, wMode); -#endif - -#elif defined(_MSC_VER) && _MSC_VER >= 1400 - if (0 != fopen_s(&f, filename, mode)) - f=0; -#else - f = fopen(filename, mode); -#endif - return f; -} - - -STBIDEF stbi_uc *stbi_load(char const *filename, int *x, int *y, int *comp, int req_comp) -{ - FILE *f = stbi__fopen(filename, "rb"); - unsigned char *result; - if (!f) return stbi__errpuc("can't fopen", "Unable to open file"); - result = stbi_load_from_file(f,x,y,comp,req_comp); - fclose(f); - return result; -} - -STBIDEF stbi_uc *stbi_load_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) -{ - unsigned char *result; - stbi__context s; - stbi__start_file(&s,f); - result = stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); - if (result) { - // need to 'unget' all the characters in the IO buffer - fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR); - } - return result; -} - -STBIDEF stbi__uint16 *stbi_load_from_file_16(FILE *f, int *x, int *y, int *comp, int req_comp) -{ - stbi__uint16 *result; - stbi__context s; - stbi__start_file(&s,f); - result = stbi__load_and_postprocess_16bit(&s,x,y,comp,req_comp); - if (result) { - // need to 'unget' all the characters in the IO buffer - fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR); - } - return result; -} - -STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp) -{ - FILE *f = stbi__fopen(filename, "rb"); - stbi__uint16 *result; - if (!f) return (stbi_us *) stbi__errpuc("can't fopen", "Unable to open file"); - result = stbi_load_from_file_16(f,x,y,comp,req_comp); - fclose(f); - return result; -} - - -#endif //!STBI_NO_STDIO - -STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels) -{ - stbi__context s; - stbi__start_mem(&s,buffer,len); - return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels); -} - -STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels) -{ - stbi__context s; - stbi__start_callbacks(&s, (stbi_io_callbacks *)clbk, user); - return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels); -} - -STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp) -{ - stbi__context s; - stbi__start_mem(&s,buffer,len); - return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); -} - -STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp) -{ - stbi__context s; - stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); - return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); -} - -#ifndef STBI_NO_GIF -STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp) -{ - unsigned char *result; - stbi__context s; - stbi__start_mem(&s,buffer,len); - - result = (unsigned char*) stbi__load_gif_main(&s, delays, x, y, z, comp, req_comp); - if (stbi__vertically_flip_on_load) { - stbi__vertical_flip_slices( result, *x, *y, *z, *comp ); - } - - return result; -} -#endif - -#ifndef STBI_NO_LINEAR -static float *stbi__loadf_main(stbi__context *s, int *x, int *y, int *comp, int req_comp) -{ - unsigned char *data; - #ifndef STBI_NO_HDR - if (stbi__hdr_test(s)) { - stbi__result_info ri; - float *hdr_data = stbi__hdr_load(s,x,y,comp,req_comp, &ri); - if (hdr_data) - stbi__float_postprocess(hdr_data,x,y,comp,req_comp); - return hdr_data; - } - #endif - data = stbi__load_and_postprocess_8bit(s, x, y, comp, req_comp); - if (data) - return stbi__ldr_to_hdr(data, *x, *y, req_comp ? req_comp : *comp); - return stbi__errpf("unknown image type", "Image not of any known type, or corrupt"); -} - -STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp) -{ - stbi__context s; - stbi__start_mem(&s,buffer,len); - return stbi__loadf_main(&s,x,y,comp,req_comp); -} - -STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp) -{ - stbi__context s; - stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); - return stbi__loadf_main(&s,x,y,comp,req_comp); -} - -#ifndef STBI_NO_STDIO -STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp) -{ - float *result; - FILE *f = stbi__fopen(filename, "rb"); - if (!f) return stbi__errpf("can't fopen", "Unable to open file"); - result = stbi_loadf_from_file(f,x,y,comp,req_comp); - fclose(f); - return result; -} - -STBIDEF float *stbi_loadf_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) -{ - stbi__context s; - stbi__start_file(&s,f); - return stbi__loadf_main(&s,x,y,comp,req_comp); -} -#endif // !STBI_NO_STDIO - -#endif // !STBI_NO_LINEAR - -// these is-hdr-or-not is defined independent of whether STBI_NO_LINEAR is -// defined, for API simplicity; if STBI_NO_LINEAR is defined, it always -// reports false! - -STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len) -{ - #ifndef STBI_NO_HDR - stbi__context s; - stbi__start_mem(&s,buffer,len); - return stbi__hdr_test(&s); - #else - STBI_NOTUSED(buffer); - STBI_NOTUSED(len); - return 0; - #endif -} - -#ifndef STBI_NO_STDIO -STBIDEF int stbi_is_hdr (char const *filename) -{ - FILE *f = stbi__fopen(filename, "rb"); - int result=0; - if (f) { - result = stbi_is_hdr_from_file(f); - fclose(f); - } - return result; -} - -STBIDEF int stbi_is_hdr_from_file(FILE *f) -{ - #ifndef STBI_NO_HDR - long pos = ftell(f); - int res; - stbi__context s; - stbi__start_file(&s,f); - res = stbi__hdr_test(&s); - fseek(f, pos, SEEK_SET); - return res; - #else - STBI_NOTUSED(f); - return 0; - #endif -} -#endif // !STBI_NO_STDIO - -STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user) -{ - #ifndef STBI_NO_HDR - stbi__context s; - stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); - return stbi__hdr_test(&s); - #else - STBI_NOTUSED(clbk); - STBI_NOTUSED(user); - return 0; - #endif -} - -#ifndef STBI_NO_LINEAR -static float stbi__l2h_gamma=2.2f, stbi__l2h_scale=1.0f; - -STBIDEF void stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; } -STBIDEF void stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; } -#endif - -static float stbi__h2l_gamma_i=1.0f/2.2f, stbi__h2l_scale_i=1.0f; - -STBIDEF void stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; } -STBIDEF void stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; } - - -////////////////////////////////////////////////////////////////////////////// -// -// Common code used by all image loaders -// - -enum -{ - STBI__SCAN_load=0, - STBI__SCAN_type, - STBI__SCAN_header -}; - -static void stbi__refill_buffer(stbi__context *s) -{ - int n = (s->io.read)(s->io_user_data,(char*)s->buffer_start,s->buflen); - if (n == 0) { - // at end of file, treat same as if from memory, but need to handle case - // where s->img_buffer isn't pointing to safe memory, e.g. 0-byte file - s->read_from_callbacks = 0; - s->img_buffer = s->buffer_start; - s->img_buffer_end = s->buffer_start+1; - *s->img_buffer = 0; - } else { - s->img_buffer = s->buffer_start; - s->img_buffer_end = s->buffer_start + n; - } -} - -stbi_inline static stbi_uc stbi__get8(stbi__context *s) -{ - if (s->img_buffer < s->img_buffer_end) - return *s->img_buffer++; - if (s->read_from_callbacks) { - stbi__refill_buffer(s); - return *s->img_buffer++; - } - return 0; -} - -#if defined(STBI_NO_JPEG) && defined(STBI_NO_HDR) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) -// nothing -#else -stbi_inline static int stbi__at_eof(stbi__context *s) -{ - if (s->io.read) { - if (!(s->io.eof)(s->io_user_data)) return 0; - // if feof() is true, check if buffer = end - // special case: we've only got the special 0 character at the end - if (s->read_from_callbacks == 0) return 1; - } - - return s->img_buffer >= s->img_buffer_end; -} -#endif - -#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) -// nothing -#else -static void stbi__skip(stbi__context *s, int n) -{ - if (n < 0) { - s->img_buffer = s->img_buffer_end; - return; - } - if (s->io.read) { - int blen = (int) (s->img_buffer_end - s->img_buffer); - if (blen < n) { - s->img_buffer = s->img_buffer_end; - (s->io.skip)(s->io_user_data, n - blen); - return; - } - } - s->img_buffer += n; -} -#endif - -#if defined(STBI_NO_PNG) && defined(STBI_NO_TGA) && defined(STBI_NO_HDR) && defined(STBI_NO_PNM) -// nothing -#else -static int stbi__getn(stbi__context *s, stbi_uc *buffer, int n) -{ - if (s->io.read) { - int blen = (int) (s->img_buffer_end - s->img_buffer); - if (blen < n) { - int res, count; - - memcpy(buffer, s->img_buffer, blen); - - count = (s->io.read)(s->io_user_data, (char*) buffer + blen, n - blen); - res = (count == (n-blen)); - s->img_buffer = s->img_buffer_end; - return res; - } - } - - if (s->img_buffer+n <= s->img_buffer_end) { - memcpy(buffer, s->img_buffer, n); - s->img_buffer += n; - return 1; - } else - return 0; -} -#endif - -#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_PSD) && defined(STBI_NO_PIC) -// nothing -#else -static int stbi__get16be(stbi__context *s) -{ - int z = stbi__get8(s); - return (z << 8) + stbi__get8(s); -} -#endif - -#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) && defined(STBI_NO_PIC) -// nothing -#else -static stbi__uint32 stbi__get32be(stbi__context *s) -{ - stbi__uint32 z = stbi__get16be(s); - return (z << 16) + stbi__get16be(s); -} -#endif - -#if defined(STBI_NO_BMP) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) -// nothing -#else -static int stbi__get16le(stbi__context *s) -{ - int z = stbi__get8(s); - return z + (stbi__get8(s) << 8); -} -#endif - -#ifndef STBI_NO_BMP -static stbi__uint32 stbi__get32le(stbi__context *s) -{ - stbi__uint32 z = stbi__get16le(s); - return z + (stbi__get16le(s) << 16); -} -#endif - -#define STBI__BYTECAST(x) ((stbi_uc) ((x) & 255)) // truncate int to byte without warnings - -#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) -// nothing -#else -////////////////////////////////////////////////////////////////////////////// -// -// generic converter from built-in img_n to req_comp -// individual types do this automatically as much as possible (e.g. jpeg -// does all cases internally since it needs to colorspace convert anyway, -// and it never has alpha, so very few cases ). png can automatically -// interleave an alpha=255 channel, but falls back to this for other cases -// -// assume data buffer is malloced, so malloc a new one and free that one -// only failure mode is malloc failing - -static stbi_uc stbi__compute_y(int r, int g, int b) -{ - return (stbi_uc) (((r*77) + (g*150) + (29*b)) >> 8); -} -#endif - -#if defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) -// nothing -#else -static unsigned char *stbi__convert_format(unsigned char *data, int img_n, int req_comp, unsigned int x, unsigned int y) -{ - int i,j; - unsigned char *good; - - if (req_comp == img_n) return data; - STBI_ASSERT(req_comp >= 1 && req_comp <= 4); - - good = (unsigned char *) stbi__malloc_mad3(req_comp, x, y, 0); - if (good == NULL) { - STBI_FREE(data); - return stbi__errpuc("outofmem", "Out of memory"); - } - - for (j=0; j < (int) y; ++j) { - unsigned char *src = data + j * x * img_n ; - unsigned char *dest = good + j * x * req_comp; - - #define STBI__COMBO(a,b) ((a)*8+(b)) - #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b) - // convert source image with img_n components to one with req_comp components; - // avoid switch per pixel, so use switch per scanline and massive macros - switch (STBI__COMBO(img_n, req_comp)) { - STBI__CASE(1,2) { dest[0]=src[0]; dest[1]=255; } break; - STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; - STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=255; } break; - STBI__CASE(2,1) { dest[0]=src[0]; } break; - STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; - STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=src[1]; } break; - STBI__CASE(3,4) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2];dest[3]=255; } break; - STBI__CASE(3,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break; - STBI__CASE(3,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); dest[1] = 255; } break; - STBI__CASE(4,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break; - STBI__CASE(4,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); dest[1] = src[3]; } break; - STBI__CASE(4,3) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2]; } break; - default: STBI_ASSERT(0); - } - #undef STBI__CASE - } - - STBI_FREE(data); - return good; -} -#endif - -#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) -// nothing -#else -static stbi__uint16 stbi__compute_y_16(int r, int g, int b) -{ - return (stbi__uint16) (((r*77) + (g*150) + (29*b)) >> 8); -} -#endif - -#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) -// nothing -#else -static stbi__uint16 *stbi__convert_format16(stbi__uint16 *data, int img_n, int req_comp, unsigned int x, unsigned int y) -{ - int i,j; - stbi__uint16 *good; - - if (req_comp == img_n) return data; - STBI_ASSERT(req_comp >= 1 && req_comp <= 4); - - good = (stbi__uint16 *) stbi__malloc(req_comp * x * y * 2); - if (good == NULL) { - STBI_FREE(data); - return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory"); - } - - for (j=0; j < (int) y; ++j) { - stbi__uint16 *src = data + j * x * img_n ; - stbi__uint16 *dest = good + j * x * req_comp; - - #define STBI__COMBO(a,b) ((a)*8+(b)) - #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b) - // convert source image with img_n components to one with req_comp components; - // avoid switch per pixel, so use switch per scanline and massive macros - switch (STBI__COMBO(img_n, req_comp)) { - STBI__CASE(1,2) { dest[0]=src[0]; dest[1]=0xffff; } break; - STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; - STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=0xffff; } break; - STBI__CASE(2,1) { dest[0]=src[0]; } break; - STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; - STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=src[1]; } break; - STBI__CASE(3,4) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2];dest[3]=0xffff; } break; - STBI__CASE(3,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break; - STBI__CASE(3,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); dest[1] = 0xffff; } break; - STBI__CASE(4,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break; - STBI__CASE(4,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); dest[1] = src[3]; } break; - STBI__CASE(4,3) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2]; } break; - default: STBI_ASSERT(0); - } - #undef STBI__CASE - } - - STBI_FREE(data); - return good; -} -#endif - -#ifndef STBI_NO_LINEAR -static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp) -{ - int i,k,n; - float *output; - if (!data) return NULL; - output = (float *) stbi__malloc_mad4(x, y, comp, sizeof(float), 0); - if (output == NULL) { STBI_FREE(data); return stbi__errpf("outofmem", "Out of memory"); } - // compute number of non-alpha components - if (comp & 1) n = comp; else n = comp-1; - for (i=0; i < x*y; ++i) { - for (k=0; k < n; ++k) { - output[i*comp + k] = (float) (pow(data[i*comp+k]/255.0f, stbi__l2h_gamma) * stbi__l2h_scale); - } - } - if (n < comp) { - for (i=0; i < x*y; ++i) { - output[i*comp + n] = data[i*comp + n]/255.0f; - } - } - STBI_FREE(data); - return output; -} -#endif - -#ifndef STBI_NO_HDR -#define stbi__float2int(x) ((int) (x)) -static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp) -{ - int i,k,n; - stbi_uc *output; - if (!data) return NULL; - output = (stbi_uc *) stbi__malloc_mad3(x, y, comp, 0); - if (output == NULL) { STBI_FREE(data); return stbi__errpuc("outofmem", "Out of memory"); } - // compute number of non-alpha components - if (comp & 1) n = comp; else n = comp-1; - for (i=0; i < x*y; ++i) { - for (k=0; k < n; ++k) { - float z = (float) pow(data[i*comp+k]*stbi__h2l_scale_i, stbi__h2l_gamma_i) * 255 + 0.5f; - if (z < 0) z = 0; - if (z > 255) z = 255; - output[i*comp + k] = (stbi_uc) stbi__float2int(z); - } - if (k < comp) { - float z = data[i*comp+k] * 255 + 0.5f; - if (z < 0) z = 0; - if (z > 255) z = 255; - output[i*comp + k] = (stbi_uc) stbi__float2int(z); - } - } - STBI_FREE(data); - return output; -} -#endif - -////////////////////////////////////////////////////////////////////////////// -// -// "baseline" JPEG/JFIF decoder -// -// simple implementation -// - doesn't support delayed output of y-dimension -// - simple interface (only one output format: 8-bit interleaved RGB) -// - doesn't try to recover corrupt jpegs -// - doesn't allow partial loading, loading multiple at once -// - still fast on x86 (copying globals into locals doesn't help x86) -// - allocates lots of intermediate memory (full size of all components) -// - non-interleaved case requires this anyway -// - allows good upsampling (see next) -// high-quality -// - upsampled channels are bilinearly interpolated, even across blocks -// - quality integer IDCT derived from IJG's 'slow' -// performance -// - fast huffman; reasonable integer IDCT -// - some SIMD kernels for common paths on targets with SSE2/NEON -// - uses a lot of intermediate memory, could cache poorly - -#ifndef STBI_NO_JPEG - -// huffman decoding acceleration -#define FAST_BITS 9 // larger handles more cases; smaller stomps less cache - -typedef struct -{ - stbi_uc fast[1 << FAST_BITS]; - // weirdly, repacking this into AoS is a 10% speed loss, instead of a win - stbi__uint16 code[256]; - stbi_uc values[256]; - stbi_uc size[257]; - unsigned int maxcode[18]; - int delta[17]; // old 'firstsymbol' - old 'firstcode' -} stbi__huffman; - -typedef struct -{ - stbi__context *s; - stbi__huffman huff_dc[4]; - stbi__huffman huff_ac[4]; - stbi__uint16 dequant[4][64]; - stbi__int16 fast_ac[4][1 << FAST_BITS]; - -// sizes for components, interleaved MCUs - int img_h_max, img_v_max; - int img_mcu_x, img_mcu_y; - int img_mcu_w, img_mcu_h; - -// definition of jpeg image component - struct - { - int id; - int h,v; - int tq; - int hd,ha; - int dc_pred; - - int x,y,w2,h2; - stbi_uc *data; - void *raw_data, *raw_coeff; - stbi_uc *linebuf; - short *coeff; // progressive only - int coeff_w, coeff_h; // number of 8x8 coefficient blocks - } img_comp[4]; - - stbi__uint32 code_buffer; // jpeg entropy-coded buffer - int code_bits; // number of valid bits - unsigned char marker; // marker seen while filling entropy buffer - int nomore; // flag if we saw a marker so must stop - - int progressive; - int spec_start; - int spec_end; - int succ_high; - int succ_low; - int eob_run; - int jfif; - int app14_color_transform; // Adobe APP14 tag - int rgb; - - int scan_n, order[4]; - int restart_interval, todo; - -// kernels - void (*idct_block_kernel)(stbi_uc *out, int out_stride, short data[64]); - void (*YCbCr_to_RGB_kernel)(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step); - stbi_uc *(*resample_row_hv_2_kernel)(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs); -} stbi__jpeg; - -static int stbi__build_huffman(stbi__huffman *h, int *count) -{ - int i,j,k=0; - unsigned int code; - // build size list for each symbol (from JPEG spec) - for (i=0; i < 16; ++i) - for (j=0; j < count[i]; ++j) - h->size[k++] = (stbi_uc) (i+1); - h->size[k] = 0; - - // compute actual symbols (from jpeg spec) - code = 0; - k = 0; - for(j=1; j <= 16; ++j) { - // compute delta to add to code to compute symbol id - h->delta[j] = k - code; - if (h->size[k] == j) { - while (h->size[k] == j) - h->code[k++] = (stbi__uint16) (code++); - if (code-1 >= (1u << j)) return stbi__err("bad code lengths","Corrupt JPEG"); - } - // compute largest code + 1 for this size, preshifted as needed later - h->maxcode[j] = code << (16-j); - code <<= 1; - } - h->maxcode[j] = 0xffffffff; - - // build non-spec acceleration table; 255 is flag for not-accelerated - memset(h->fast, 255, 1 << FAST_BITS); - for (i=0; i < k; ++i) { - int s = h->size[i]; - if (s <= FAST_BITS) { - int c = h->code[i] << (FAST_BITS-s); - int m = 1 << (FAST_BITS-s); - for (j=0; j < m; ++j) { - h->fast[c+j] = (stbi_uc) i; - } - } - } - return 1; -} - -// build a table that decodes both magnitude and value of small ACs in -// one go. -static void stbi__build_fast_ac(stbi__int16 *fast_ac, stbi__huffman *h) -{ - int i; - for (i=0; i < (1 << FAST_BITS); ++i) { - stbi_uc fast = h->fast[i]; - fast_ac[i] = 0; - if (fast < 255) { - int rs = h->values[fast]; - int run = (rs >> 4) & 15; - int magbits = rs & 15; - int len = h->size[fast]; - - if (magbits && len + magbits <= FAST_BITS) { - // magnitude code followed by receive_extend code - int k = ((i << len) & ((1 << FAST_BITS) - 1)) >> (FAST_BITS - magbits); - int m = 1 << (magbits - 1); - if (k < m) k += (~0U << magbits) + 1; - // if the result is small enough, we can fit it in fast_ac table - if (k >= -128 && k <= 127) - fast_ac[i] = (stbi__int16) ((k * 256) + (run * 16) + (len + magbits)); - } - } - } -} - -static void stbi__grow_buffer_unsafe(stbi__jpeg *j) -{ - do { - unsigned int b = j->nomore ? 0 : stbi__get8(j->s); - if (b == 0xff) { - int c = stbi__get8(j->s); - while (c == 0xff) c = stbi__get8(j->s); // consume fill bytes - if (c != 0) { - j->marker = (unsigned char) c; - j->nomore = 1; - return; - } - } - j->code_buffer |= b << (24 - j->code_bits); - j->code_bits += 8; - } while (j->code_bits <= 24); -} - -// (1 << n) - 1 -static const stbi__uint32 stbi__bmask[17]={0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535}; - -// decode a jpeg huffman value from the bitstream -stbi_inline static int stbi__jpeg_huff_decode(stbi__jpeg *j, stbi__huffman *h) -{ - unsigned int temp; - int c,k; - - if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); - - // look at the top FAST_BITS and determine what symbol ID it is, - // if the code is <= FAST_BITS - c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); - k = h->fast[c]; - if (k < 255) { - int s = h->size[k]; - if (s > j->code_bits) - return -1; - j->code_buffer <<= s; - j->code_bits -= s; - return h->values[k]; - } - - // naive test is to shift the code_buffer down so k bits are - // valid, then test against maxcode. To speed this up, we've - // preshifted maxcode left so that it has (16-k) 0s at the - // end; in other words, regardless of the number of bits, it - // wants to be compared against something shifted to have 16; - // that way we don't need to shift inside the loop. - temp = j->code_buffer >> 16; - for (k=FAST_BITS+1 ; ; ++k) - if (temp < h->maxcode[k]) - break; - if (k == 17) { - // error! code not found - j->code_bits -= 16; - return -1; - } - - if (k > j->code_bits) - return -1; - - // convert the huffman code to the symbol id - c = ((j->code_buffer >> (32 - k)) & stbi__bmask[k]) + h->delta[k]; - STBI_ASSERT((((j->code_buffer) >> (32 - h->size[c])) & stbi__bmask[h->size[c]]) == h->code[c]); - - // convert the id to a symbol - j->code_bits -= k; - j->code_buffer <<= k; - return h->values[c]; -} - -// bias[n] = (-1<<n) + 1 -static const int stbi__jbias[16] = {0,-1,-3,-7,-15,-31,-63,-127,-255,-511,-1023,-2047,-4095,-8191,-16383,-32767}; - -// combined JPEG 'receive' and JPEG 'extend', since baseline -// always extends everything it receives. -stbi_inline static int stbi__extend_receive(stbi__jpeg *j, int n) -{ - unsigned int k; - int sgn; - if (j->code_bits < n) stbi__grow_buffer_unsafe(j); - - sgn = (stbi__int32)j->code_buffer >> 31; // sign bit is always in MSB - k = stbi_lrot(j->code_buffer, n); - STBI_ASSERT(n >= 0 && n < (int) (sizeof(stbi__bmask)/sizeof(*stbi__bmask))); - j->code_buffer = k & ~stbi__bmask[n]; - k &= stbi__bmask[n]; - j->code_bits -= n; - return k + (stbi__jbias[n] & ~sgn); -} - -// get some unsigned bits -stbi_inline static int stbi__jpeg_get_bits(stbi__jpeg *j, int n) -{ - unsigned int k; - if (j->code_bits < n) stbi__grow_buffer_unsafe(j); - k = stbi_lrot(j->code_buffer, n); - j->code_buffer = k & ~stbi__bmask[n]; - k &= stbi__bmask[n]; - j->code_bits -= n; - return k; -} - -stbi_inline static int stbi__jpeg_get_bit(stbi__jpeg *j) -{ - unsigned int k; - if (j->code_bits < 1) stbi__grow_buffer_unsafe(j); - k = j->code_buffer; - j->code_buffer <<= 1; - --j->code_bits; - return k & 0x80000000; -} - -// given a value that's at position X in the zigzag stream, -// where does it appear in the 8x8 matrix coded as row-major? -static const stbi_uc stbi__jpeg_dezigzag[64+15] = -{ - 0, 1, 8, 16, 9, 2, 3, 10, - 17, 24, 32, 25, 18, 11, 4, 5, - 12, 19, 26, 33, 40, 48, 41, 34, - 27, 20, 13, 6, 7, 14, 21, 28, - 35, 42, 49, 56, 57, 50, 43, 36, - 29, 22, 15, 23, 30, 37, 44, 51, - 58, 59, 52, 45, 38, 31, 39, 46, - 53, 60, 61, 54, 47, 55, 62, 63, - // let corrupt input sample past end - 63, 63, 63, 63, 63, 63, 63, 63, - 63, 63, 63, 63, 63, 63, 63 -}; - -// decode one 64-entry block-- -static int stbi__jpeg_decode_block(stbi__jpeg *j, short data[64], stbi__huffman *hdc, stbi__huffman *hac, stbi__int16 *fac, int b, stbi__uint16 *dequant) -{ - int diff,dc,k; - int t; - - if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); - t = stbi__jpeg_huff_decode(j, hdc); - if (t < 0) return stbi__err("bad huffman code","Corrupt JPEG"); - - // 0 all the ac values now so we can do it 32-bits at a time - memset(data,0,64*sizeof(data[0])); - - diff = t ? stbi__extend_receive(j, t) : 0; - dc = j->img_comp[b].dc_pred + diff; - j->img_comp[b].dc_pred = dc; - data[0] = (short) (dc * dequant[0]); - - // decode AC components, see JPEG spec - k = 1; - do { - unsigned int zig; - int c,r,s; - if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); - c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); - r = fac[c]; - if (r) { // fast-AC path - k += (r >> 4) & 15; // run - s = r & 15; // combined length - j->code_buffer <<= s; - j->code_bits -= s; - // decode into unzigzag'd location - zig = stbi__jpeg_dezigzag[k++]; - data[zig] = (short) ((r >> 8) * dequant[zig]); - } else { - int rs = stbi__jpeg_huff_decode(j, hac); - if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); - s = rs & 15; - r = rs >> 4; - if (s == 0) { - if (rs != 0xf0) break; // end block - k += 16; - } else { - k += r; - // decode into unzigzag'd location - zig = stbi__jpeg_dezigzag[k++]; - data[zig] = (short) (stbi__extend_receive(j,s) * dequant[zig]); - } - } - } while (k < 64); - return 1; -} - -static int stbi__jpeg_decode_block_prog_dc(stbi__jpeg *j, short data[64], stbi__huffman *hdc, int b) -{ - int diff,dc; - int t; - if (j->spec_end != 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); - - if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); - - if (j->succ_high == 0) { - // first scan for DC coefficient, must be first - memset(data,0,64*sizeof(data[0])); // 0 all the ac values now - t = stbi__jpeg_huff_decode(j, hdc); - diff = t ? stbi__extend_receive(j, t) : 0; - - dc = j->img_comp[b].dc_pred + diff; - j->img_comp[b].dc_pred = dc; - data[0] = (short) (dc << j->succ_low); - } else { - // refinement scan for DC coefficient - if (stbi__jpeg_get_bit(j)) - data[0] += (short) (1 << j->succ_low); - } - return 1; -} - -// @OPTIMIZE: store non-zigzagged during the decode passes, -// and only de-zigzag when dequantizing -static int stbi__jpeg_decode_block_prog_ac(stbi__jpeg *j, short data[64], stbi__huffman *hac, stbi__int16 *fac) -{ - int k; - if (j->spec_start == 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); - - if (j->succ_high == 0) { - int shift = j->succ_low; - - if (j->eob_run) { - --j->eob_run; - return 1; - } - - k = j->spec_start; - do { - unsigned int zig; - int c,r,s; - if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); - c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); - r = fac[c]; - if (r) { // fast-AC path - k += (r >> 4) & 15; // run - s = r & 15; // combined length - j->code_buffer <<= s; - j->code_bits -= s; - zig = stbi__jpeg_dezigzag[k++]; - data[zig] = (short) ((r >> 8) << shift); - } else { - int rs = stbi__jpeg_huff_decode(j, hac); - if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); - s = rs & 15; - r = rs >> 4; - if (s == 0) { - if (r < 15) { - j->eob_run = (1 << r); - if (r) - j->eob_run += stbi__jpeg_get_bits(j, r); - --j->eob_run; - break; - } - k += 16; - } else { - k += r; - zig = stbi__jpeg_dezigzag[k++]; - data[zig] = (short) (stbi__extend_receive(j,s) << shift); - } - } - } while (k <= j->spec_end); - } else { - // refinement scan for these AC coefficients - - short bit = (short) (1 << j->succ_low); - - if (j->eob_run) { - --j->eob_run; - for (k = j->spec_start; k <= j->spec_end; ++k) { - short *p = &data[stbi__jpeg_dezigzag[k]]; - if (*p != 0) - if (stbi__jpeg_get_bit(j)) - if ((*p & bit)==0) { - if (*p > 0) - *p += bit; - else - *p -= bit; - } - } - } else { - k = j->spec_start; - do { - int r,s; - int rs = stbi__jpeg_huff_decode(j, hac); // @OPTIMIZE see if we can use the fast path here, advance-by-r is so slow, eh - if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); - s = rs & 15; - r = rs >> 4; - if (s == 0) { - if (r < 15) { - j->eob_run = (1 << r) - 1; - if (r) - j->eob_run += stbi__jpeg_get_bits(j, r); - r = 64; // force end of block - } else { - // r=15 s=0 should write 16 0s, so we just do - // a run of 15 0s and then write s (which is 0), - // so we don't have to do anything special here - } - } else { - if (s != 1) return stbi__err("bad huffman code", "Corrupt JPEG"); - // sign bit - if (stbi__jpeg_get_bit(j)) - s = bit; - else - s = -bit; - } - - // advance by r - while (k <= j->spec_end) { - short *p = &data[stbi__jpeg_dezigzag[k++]]; - if (*p != 0) { - if (stbi__jpeg_get_bit(j)) - if ((*p & bit)==0) { - if (*p > 0) - *p += bit; - else - *p -= bit; - } - } else { - if (r == 0) { - *p = (short) s; - break; - } - --r; - } - } - } while (k <= j->spec_end); - } - } - return 1; -} - -// take a -128..127 value and stbi__clamp it and convert to 0..255 -stbi_inline static stbi_uc stbi__clamp(int x) -{ - // trick to use a single test to catch both cases - if ((unsigned int) x > 255) { - if (x < 0) return 0; - if (x > 255) return 255; - } - return (stbi_uc) x; -} - -#define stbi__f2f(x) ((int) (((x) * 4096 + 0.5))) -#define stbi__fsh(x) ((x) * 4096) - -// derived from jidctint -- DCT_ISLOW -#define STBI__IDCT_1D(s0,s1,s2,s3,s4,s5,s6,s7) \ - int t0,t1,t2,t3,p1,p2,p3,p4,p5,x0,x1,x2,x3; \ - p2 = s2; \ - p3 = s6; \ - p1 = (p2+p3) * stbi__f2f(0.5411961f); \ - t2 = p1 + p3*stbi__f2f(-1.847759065f); \ - t3 = p1 + p2*stbi__f2f( 0.765366865f); \ - p2 = s0; \ - p3 = s4; \ - t0 = stbi__fsh(p2+p3); \ - t1 = stbi__fsh(p2-p3); \ - x0 = t0+t3; \ - x3 = t0-t3; \ - x1 = t1+t2; \ - x2 = t1-t2; \ - t0 = s7; \ - t1 = s5; \ - t2 = s3; \ - t3 = s1; \ - p3 = t0+t2; \ - p4 = t1+t3; \ - p1 = t0+t3; \ - p2 = t1+t2; \ - p5 = (p3+p4)*stbi__f2f( 1.175875602f); \ - t0 = t0*stbi__f2f( 0.298631336f); \ - t1 = t1*stbi__f2f( 2.053119869f); \ - t2 = t2*stbi__f2f( 3.072711026f); \ - t3 = t3*stbi__f2f( 1.501321110f); \ - p1 = p5 + p1*stbi__f2f(-0.899976223f); \ - p2 = p5 + p2*stbi__f2f(-2.562915447f); \ - p3 = p3*stbi__f2f(-1.961570560f); \ - p4 = p4*stbi__f2f(-0.390180644f); \ - t3 += p1+p4; \ - t2 += p2+p3; \ - t1 += p2+p4; \ - t0 += p1+p3; - -static void stbi__idct_block(stbi_uc *out, int out_stride, short data[64]) -{ - int i,val[64],*v=val; - stbi_uc *o; - short *d = data; - - // columns - for (i=0; i < 8; ++i,++d, ++v) { - // if all zeroes, shortcut -- this avoids dequantizing 0s and IDCTing - if (d[ 8]==0 && d[16]==0 && d[24]==0 && d[32]==0 - && d[40]==0 && d[48]==0 && d[56]==0) { - // no shortcut 0 seconds - // (1|2|3|4|5|6|7)==0 0 seconds - // all separate -0.047 seconds - // 1 && 2|3 && 4|5 && 6|7: -0.047 seconds - int dcterm = d[0]*4; - v[0] = v[8] = v[16] = v[24] = v[32] = v[40] = v[48] = v[56] = dcterm; - } else { - STBI__IDCT_1D(d[ 0],d[ 8],d[16],d[24],d[32],d[40],d[48],d[56]) - // constants scaled things up by 1<<12; let's bring them back - // down, but keep 2 extra bits of precision - x0 += 512; x1 += 512; x2 += 512; x3 += 512; - v[ 0] = (x0+t3) >> 10; - v[56] = (x0-t3) >> 10; - v[ 8] = (x1+t2) >> 10; - v[48] = (x1-t2) >> 10; - v[16] = (x2+t1) >> 10; - v[40] = (x2-t1) >> 10; - v[24] = (x3+t0) >> 10; - v[32] = (x3-t0) >> 10; - } - } - - for (i=0, v=val, o=out; i < 8; ++i,v+=8,o+=out_stride) { - // no fast case since the first 1D IDCT spread components out - STBI__IDCT_1D(v[0],v[1],v[2],v[3],v[4],v[5],v[6],v[7]) - // constants scaled things up by 1<<12, plus we had 1<<2 from first - // loop, plus horizontal and vertical each scale by sqrt(8) so together - // we've got an extra 1<<3, so 1<<17 total we need to remove. - // so we want to round that, which means adding 0.5 * 1<<17, - // aka 65536. Also, we'll end up with -128 to 127 that we want - // to encode as 0..255 by adding 128, so we'll add that before the shift - x0 += 65536 + (128<<17); - x1 += 65536 + (128<<17); - x2 += 65536 + (128<<17); - x3 += 65536 + (128<<17); - // tried computing the shifts into temps, or'ing the temps to see - // if any were out of range, but that was slower - o[0] = stbi__clamp((x0+t3) >> 17); - o[7] = stbi__clamp((x0-t3) >> 17); - o[1] = stbi__clamp((x1+t2) >> 17); - o[6] = stbi__clamp((x1-t2) >> 17); - o[2] = stbi__clamp((x2+t1) >> 17); - o[5] = stbi__clamp((x2-t1) >> 17); - o[3] = stbi__clamp((x3+t0) >> 17); - o[4] = stbi__clamp((x3-t0) >> 17); - } -} - -#ifdef STBI_SSE2 -// sse2 integer IDCT. not the fastest possible implementation but it -// produces bit-identical results to the generic C version so it's -// fully "transparent". -static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64]) -{ - // This is constructed to match our regular (generic) integer IDCT exactly. - __m128i row0, row1, row2, row3, row4, row5, row6, row7; - __m128i tmp; - - // dot product constant: even elems=x, odd elems=y - #define dct_const(x,y) _mm_setr_epi16((x),(y),(x),(y),(x),(y),(x),(y)) - - // out(0) = c0[even]*x + c0[odd]*y (c0, x, y 16-bit, out 32-bit) - // out(1) = c1[even]*x + c1[odd]*y - #define dct_rot(out0,out1, x,y,c0,c1) \ - __m128i c0##lo = _mm_unpacklo_epi16((x),(y)); \ - __m128i c0##hi = _mm_unpackhi_epi16((x),(y)); \ - __m128i out0##_l = _mm_madd_epi16(c0##lo, c0); \ - __m128i out0##_h = _mm_madd_epi16(c0##hi, c0); \ - __m128i out1##_l = _mm_madd_epi16(c0##lo, c1); \ - __m128i out1##_h = _mm_madd_epi16(c0##hi, c1) - - // out = in << 12 (in 16-bit, out 32-bit) - #define dct_widen(out, in) \ - __m128i out##_l = _mm_srai_epi32(_mm_unpacklo_epi16(_mm_setzero_si128(), (in)), 4); \ - __m128i out##_h = _mm_srai_epi32(_mm_unpackhi_epi16(_mm_setzero_si128(), (in)), 4) - - // wide add - #define dct_wadd(out, a, b) \ - __m128i out##_l = _mm_add_epi32(a##_l, b##_l); \ - __m128i out##_h = _mm_add_epi32(a##_h, b##_h) - - // wide sub - #define dct_wsub(out, a, b) \ - __m128i out##_l = _mm_sub_epi32(a##_l, b##_l); \ - __m128i out##_h = _mm_sub_epi32(a##_h, b##_h) - - // butterfly a/b, add bias, then shift by "s" and pack - #define dct_bfly32o(out0, out1, a,b,bias,s) \ - { \ - __m128i abiased_l = _mm_add_epi32(a##_l, bias); \ - __m128i abiased_h = _mm_add_epi32(a##_h, bias); \ - dct_wadd(sum, abiased, b); \ - dct_wsub(dif, abiased, b); \ - out0 = _mm_packs_epi32(_mm_srai_epi32(sum_l, s), _mm_srai_epi32(sum_h, s)); \ - out1 = _mm_packs_epi32(_mm_srai_epi32(dif_l, s), _mm_srai_epi32(dif_h, s)); \ - } - - // 8-bit interleave step (for transposes) - #define dct_interleave8(a, b) \ - tmp = a; \ - a = _mm_unpacklo_epi8(a, b); \ - b = _mm_unpackhi_epi8(tmp, b) - - // 16-bit interleave step (for transposes) - #define dct_interleave16(a, b) \ - tmp = a; \ - a = _mm_unpacklo_epi16(a, b); \ - b = _mm_unpackhi_epi16(tmp, b) - - #define dct_pass(bias,shift) \ - { \ - /* even part */ \ - dct_rot(t2e,t3e, row2,row6, rot0_0,rot0_1); \ - __m128i sum04 = _mm_add_epi16(row0, row4); \ - __m128i dif04 = _mm_sub_epi16(row0, row4); \ - dct_widen(t0e, sum04); \ - dct_widen(t1e, dif04); \ - dct_wadd(x0, t0e, t3e); \ - dct_wsub(x3, t0e, t3e); \ - dct_wadd(x1, t1e, t2e); \ - dct_wsub(x2, t1e, t2e); \ - /* odd part */ \ - dct_rot(y0o,y2o, row7,row3, rot2_0,rot2_1); \ - dct_rot(y1o,y3o, row5,row1, rot3_0,rot3_1); \ - __m128i sum17 = _mm_add_epi16(row1, row7); \ - __m128i sum35 = _mm_add_epi16(row3, row5); \ - dct_rot(y4o,y5o, sum17,sum35, rot1_0,rot1_1); \ - dct_wadd(x4, y0o, y4o); \ - dct_wadd(x5, y1o, y5o); \ - dct_wadd(x6, y2o, y5o); \ - dct_wadd(x7, y3o, y4o); \ - dct_bfly32o(row0,row7, x0,x7,bias,shift); \ - dct_bfly32o(row1,row6, x1,x6,bias,shift); \ - dct_bfly32o(row2,row5, x2,x5,bias,shift); \ - dct_bfly32o(row3,row4, x3,x4,bias,shift); \ - } - - __m128i rot0_0 = dct_const(stbi__f2f(0.5411961f), stbi__f2f(0.5411961f) + stbi__f2f(-1.847759065f)); - __m128i rot0_1 = dct_const(stbi__f2f(0.5411961f) + stbi__f2f( 0.765366865f), stbi__f2f(0.5411961f)); - __m128i rot1_0 = dct_const(stbi__f2f(1.175875602f) + stbi__f2f(-0.899976223f), stbi__f2f(1.175875602f)); - __m128i rot1_1 = dct_const(stbi__f2f(1.175875602f), stbi__f2f(1.175875602f) + stbi__f2f(-2.562915447f)); - __m128i rot2_0 = dct_const(stbi__f2f(-1.961570560f) + stbi__f2f( 0.298631336f), stbi__f2f(-1.961570560f)); - __m128i rot2_1 = dct_const(stbi__f2f(-1.961570560f), stbi__f2f(-1.961570560f) + stbi__f2f( 3.072711026f)); - __m128i rot3_0 = dct_const(stbi__f2f(-0.390180644f) + stbi__f2f( 2.053119869f), stbi__f2f(-0.390180644f)); - __m128i rot3_1 = dct_const(stbi__f2f(-0.390180644f), stbi__f2f(-0.390180644f) + stbi__f2f( 1.501321110f)); - - // rounding biases in column/row passes, see stbi__idct_block for explanation. - __m128i bias_0 = _mm_set1_epi32(512); - __m128i bias_1 = _mm_set1_epi32(65536 + (128<<17)); - - // load - row0 = _mm_load_si128((const __m128i *) (data + 0*8)); - row1 = _mm_load_si128((const __m128i *) (data + 1*8)); - row2 = _mm_load_si128((const __m128i *) (data + 2*8)); - row3 = _mm_load_si128((const __m128i *) (data + 3*8)); - row4 = _mm_load_si128((const __m128i *) (data + 4*8)); - row5 = _mm_load_si128((const __m128i *) (data + 5*8)); - row6 = _mm_load_si128((const __m128i *) (data + 6*8)); - row7 = _mm_load_si128((const __m128i *) (data + 7*8)); - - // column pass - dct_pass(bias_0, 10); - - { - // 16bit 8x8 transpose pass 1 - dct_interleave16(row0, row4); - dct_interleave16(row1, row5); - dct_interleave16(row2, row6); - dct_interleave16(row3, row7); - - // transpose pass 2 - dct_interleave16(row0, row2); - dct_interleave16(row1, row3); - dct_interleave16(row4, row6); - dct_interleave16(row5, row7); - - // transpose pass 3 - dct_interleave16(row0, row1); - dct_interleave16(row2, row3); - dct_interleave16(row4, row5); - dct_interleave16(row6, row7); - } - - // row pass - dct_pass(bias_1, 17); - - { - // pack - __m128i p0 = _mm_packus_epi16(row0, row1); // a0a1a2a3...a7b0b1b2b3...b7 - __m128i p1 = _mm_packus_epi16(row2, row3); - __m128i p2 = _mm_packus_epi16(row4, row5); - __m128i p3 = _mm_packus_epi16(row6, row7); - - // 8bit 8x8 transpose pass 1 - dct_interleave8(p0, p2); // a0e0a1e1... - dct_interleave8(p1, p3); // c0g0c1g1... - - // transpose pass 2 - dct_interleave8(p0, p1); // a0c0e0g0... - dct_interleave8(p2, p3); // b0d0f0h0... - - // transpose pass 3 - dct_interleave8(p0, p2); // a0b0c0d0... - dct_interleave8(p1, p3); // a4b4c4d4... - - // store - _mm_storel_epi64((__m128i *) out, p0); out += out_stride; - _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p0, 0x4e)); out += out_stride; - _mm_storel_epi64((__m128i *) out, p2); out += out_stride; - _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p2, 0x4e)); out += out_stride; - _mm_storel_epi64((__m128i *) out, p1); out += out_stride; - _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p1, 0x4e)); out += out_stride; - _mm_storel_epi64((__m128i *) out, p3); out += out_stride; - _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p3, 0x4e)); - } - -#undef dct_const -#undef dct_rot -#undef dct_widen -#undef dct_wadd -#undef dct_wsub -#undef dct_bfly32o -#undef dct_interleave8 -#undef dct_interleave16 -#undef dct_pass -} - -#endif // STBI_SSE2 - -#ifdef STBI_NEON - -// NEON integer IDCT. should produce bit-identical -// results to the generic C version. -static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64]) -{ - int16x8_t row0, row1, row2, row3, row4, row5, row6, row7; - - int16x4_t rot0_0 = vdup_n_s16(stbi__f2f(0.5411961f)); - int16x4_t rot0_1 = vdup_n_s16(stbi__f2f(-1.847759065f)); - int16x4_t rot0_2 = vdup_n_s16(stbi__f2f( 0.765366865f)); - int16x4_t rot1_0 = vdup_n_s16(stbi__f2f( 1.175875602f)); - int16x4_t rot1_1 = vdup_n_s16(stbi__f2f(-0.899976223f)); - int16x4_t rot1_2 = vdup_n_s16(stbi__f2f(-2.562915447f)); - int16x4_t rot2_0 = vdup_n_s16(stbi__f2f(-1.961570560f)); - int16x4_t rot2_1 = vdup_n_s16(stbi__f2f(-0.390180644f)); - int16x4_t rot3_0 = vdup_n_s16(stbi__f2f( 0.298631336f)); - int16x4_t rot3_1 = vdup_n_s16(stbi__f2f( 2.053119869f)); - int16x4_t rot3_2 = vdup_n_s16(stbi__f2f( 3.072711026f)); - int16x4_t rot3_3 = vdup_n_s16(stbi__f2f( 1.501321110f)); - -#define dct_long_mul(out, inq, coeff) \ - int32x4_t out##_l = vmull_s16(vget_low_s16(inq), coeff); \ - int32x4_t out##_h = vmull_s16(vget_high_s16(inq), coeff) - -#define dct_long_mac(out, acc, inq, coeff) \ - int32x4_t out##_l = vmlal_s16(acc##_l, vget_low_s16(inq), coeff); \ - int32x4_t out##_h = vmlal_s16(acc##_h, vget_high_s16(inq), coeff) - -#define dct_widen(out, inq) \ - int32x4_t out##_l = vshll_n_s16(vget_low_s16(inq), 12); \ - int32x4_t out##_h = vshll_n_s16(vget_high_s16(inq), 12) - -// wide add -#define dct_wadd(out, a, b) \ - int32x4_t out##_l = vaddq_s32(a##_l, b##_l); \ - int32x4_t out##_h = vaddq_s32(a##_h, b##_h) - -// wide sub -#define dct_wsub(out, a, b) \ - int32x4_t out##_l = vsubq_s32(a##_l, b##_l); \ - int32x4_t out##_h = vsubq_s32(a##_h, b##_h) - -// butterfly a/b, then shift using "shiftop" by "s" and pack -#define dct_bfly32o(out0,out1, a,b,shiftop,s) \ - { \ - dct_wadd(sum, a, b); \ - dct_wsub(dif, a, b); \ - out0 = vcombine_s16(shiftop(sum_l, s), shiftop(sum_h, s)); \ - out1 = vcombine_s16(shiftop(dif_l, s), shiftop(dif_h, s)); \ - } - -#define dct_pass(shiftop, shift) \ - { \ - /* even part */ \ - int16x8_t sum26 = vaddq_s16(row2, row6); \ - dct_long_mul(p1e, sum26, rot0_0); \ - dct_long_mac(t2e, p1e, row6, rot0_1); \ - dct_long_mac(t3e, p1e, row2, rot0_2); \ - int16x8_t sum04 = vaddq_s16(row0, row4); \ - int16x8_t dif04 = vsubq_s16(row0, row4); \ - dct_widen(t0e, sum04); \ - dct_widen(t1e, dif04); \ - dct_wadd(x0, t0e, t3e); \ - dct_wsub(x3, t0e, t3e); \ - dct_wadd(x1, t1e, t2e); \ - dct_wsub(x2, t1e, t2e); \ - /* odd part */ \ - int16x8_t sum15 = vaddq_s16(row1, row5); \ - int16x8_t sum17 = vaddq_s16(row1, row7); \ - int16x8_t sum35 = vaddq_s16(row3, row5); \ - int16x8_t sum37 = vaddq_s16(row3, row7); \ - int16x8_t sumodd = vaddq_s16(sum17, sum35); \ - dct_long_mul(p5o, sumodd, rot1_0); \ - dct_long_mac(p1o, p5o, sum17, rot1_1); \ - dct_long_mac(p2o, p5o, sum35, rot1_2); \ - dct_long_mul(p3o, sum37, rot2_0); \ - dct_long_mul(p4o, sum15, rot2_1); \ - dct_wadd(sump13o, p1o, p3o); \ - dct_wadd(sump24o, p2o, p4o); \ - dct_wadd(sump23o, p2o, p3o); \ - dct_wadd(sump14o, p1o, p4o); \ - dct_long_mac(x4, sump13o, row7, rot3_0); \ - dct_long_mac(x5, sump24o, row5, rot3_1); \ - dct_long_mac(x6, sump23o, row3, rot3_2); \ - dct_long_mac(x7, sump14o, row1, rot3_3); \ - dct_bfly32o(row0,row7, x0,x7,shiftop,shift); \ - dct_bfly32o(row1,row6, x1,x6,shiftop,shift); \ - dct_bfly32o(row2,row5, x2,x5,shiftop,shift); \ - dct_bfly32o(row3,row4, x3,x4,shiftop,shift); \ - } - - // load - row0 = vld1q_s16(data + 0*8); - row1 = vld1q_s16(data + 1*8); - row2 = vld1q_s16(data + 2*8); - row3 = vld1q_s16(data + 3*8); - row4 = vld1q_s16(data + 4*8); - row5 = vld1q_s16(data + 5*8); - row6 = vld1q_s16(data + 6*8); - row7 = vld1q_s16(data + 7*8); - - // add DC bias - row0 = vaddq_s16(row0, vsetq_lane_s16(1024, vdupq_n_s16(0), 0)); - - // column pass - dct_pass(vrshrn_n_s32, 10); - - // 16bit 8x8 transpose - { -// these three map to a single VTRN.16, VTRN.32, and VSWP, respectively. -// whether compilers actually get this is another story, sadly. -#define dct_trn16(x, y) { int16x8x2_t t = vtrnq_s16(x, y); x = t.val[0]; y = t.val[1]; } -#define dct_trn32(x, y) { int32x4x2_t t = vtrnq_s32(vreinterpretq_s32_s16(x), vreinterpretq_s32_s16(y)); x = vreinterpretq_s16_s32(t.val[0]); y = vreinterpretq_s16_s32(t.val[1]); } -#define dct_trn64(x, y) { int16x8_t x0 = x; int16x8_t y0 = y; x = vcombine_s16(vget_low_s16(x0), vget_low_s16(y0)); y = vcombine_s16(vget_high_s16(x0), vget_high_s16(y0)); } - - // pass 1 - dct_trn16(row0, row1); // a0b0a2b2a4b4a6b6 - dct_trn16(row2, row3); - dct_trn16(row4, row5); - dct_trn16(row6, row7); - - // pass 2 - dct_trn32(row0, row2); // a0b0c0d0a4b4c4d4 - dct_trn32(row1, row3); - dct_trn32(row4, row6); - dct_trn32(row5, row7); - - // pass 3 - dct_trn64(row0, row4); // a0b0c0d0e0f0g0h0 - dct_trn64(row1, row5); - dct_trn64(row2, row6); - dct_trn64(row3, row7); - -#undef dct_trn16 -#undef dct_trn32 -#undef dct_trn64 - } - - // row pass - // vrshrn_n_s32 only supports shifts up to 16, we need - // 17. so do a non-rounding shift of 16 first then follow - // up with a rounding shift by 1. - dct_pass(vshrn_n_s32, 16); - - { - // pack and round - uint8x8_t p0 = vqrshrun_n_s16(row0, 1); - uint8x8_t p1 = vqrshrun_n_s16(row1, 1); - uint8x8_t p2 = vqrshrun_n_s16(row2, 1); - uint8x8_t p3 = vqrshrun_n_s16(row3, 1); - uint8x8_t p4 = vqrshrun_n_s16(row4, 1); - uint8x8_t p5 = vqrshrun_n_s16(row5, 1); - uint8x8_t p6 = vqrshrun_n_s16(row6, 1); - uint8x8_t p7 = vqrshrun_n_s16(row7, 1); - - // again, these can translate into one instruction, but often don't. -#define dct_trn8_8(x, y) { uint8x8x2_t t = vtrn_u8(x, y); x = t.val[0]; y = t.val[1]; } -#define dct_trn8_16(x, y) { uint16x4x2_t t = vtrn_u16(vreinterpret_u16_u8(x), vreinterpret_u16_u8(y)); x = vreinterpret_u8_u16(t.val[0]); y = vreinterpret_u8_u16(t.val[1]); } -#define dct_trn8_32(x, y) { uint32x2x2_t t = vtrn_u32(vreinterpret_u32_u8(x), vreinterpret_u32_u8(y)); x = vreinterpret_u8_u32(t.val[0]); y = vreinterpret_u8_u32(t.val[1]); } - - // sadly can't use interleaved stores here since we only write - // 8 bytes to each scan line! - - // 8x8 8-bit transpose pass 1 - dct_trn8_8(p0, p1); - dct_trn8_8(p2, p3); - dct_trn8_8(p4, p5); - dct_trn8_8(p6, p7); - - // pass 2 - dct_trn8_16(p0, p2); - dct_trn8_16(p1, p3); - dct_trn8_16(p4, p6); - dct_trn8_16(p5, p7); - - // pass 3 - dct_trn8_32(p0, p4); - dct_trn8_32(p1, p5); - dct_trn8_32(p2, p6); - dct_trn8_32(p3, p7); - - // store - vst1_u8(out, p0); out += out_stride; - vst1_u8(out, p1); out += out_stride; - vst1_u8(out, p2); out += out_stride; - vst1_u8(out, p3); out += out_stride; - vst1_u8(out, p4); out += out_stride; - vst1_u8(out, p5); out += out_stride; - vst1_u8(out, p6); out += out_stride; - vst1_u8(out, p7); - -#undef dct_trn8_8 -#undef dct_trn8_16 -#undef dct_trn8_32 - } - -#undef dct_long_mul -#undef dct_long_mac -#undef dct_widen -#undef dct_wadd -#undef dct_wsub -#undef dct_bfly32o -#undef dct_pass -} - -#endif // STBI_NEON - -#define STBI__MARKER_none 0xff -// if there's a pending marker from the entropy stream, return that -// otherwise, fetch from the stream and get a marker. if there's no -// marker, return 0xff, which is never a valid marker value -static stbi_uc stbi__get_marker(stbi__jpeg *j) -{ - stbi_uc x; - if (j->marker != STBI__MARKER_none) { x = j->marker; j->marker = STBI__MARKER_none; return x; } - x = stbi__get8(j->s); - if (x != 0xff) return STBI__MARKER_none; - while (x == 0xff) - x = stbi__get8(j->s); // consume repeated 0xff fill bytes - return x; -} - -// in each scan, we'll have scan_n components, and the order -// of the components is specified by order[] -#define STBI__RESTART(x) ((x) >= 0xd0 && (x) <= 0xd7) - -// after a restart interval, stbi__jpeg_reset the entropy decoder and -// the dc prediction -static void stbi__jpeg_reset(stbi__jpeg *j) -{ - j->code_bits = 0; - j->code_buffer = 0; - j->nomore = 0; - j->img_comp[0].dc_pred = j->img_comp[1].dc_pred = j->img_comp[2].dc_pred = j->img_comp[3].dc_pred = 0; - j->marker = STBI__MARKER_none; - j->todo = j->restart_interval ? j->restart_interval : 0x7fffffff; - j->eob_run = 0; - // no more than 1<<31 MCUs if no restart_interal? that's plenty safe, - // since we don't even allow 1<<30 pixels -} - -static int stbi__parse_entropy_coded_data(stbi__jpeg *z) -{ - stbi__jpeg_reset(z); - if (!z->progressive) { - if (z->scan_n == 1) { - int i,j; - STBI_SIMD_ALIGN(short, data[64]); - int n = z->order[0]; - // non-interleaved data, we just need to process one block at a time, - // in trivial scanline order - // number of blocks to do just depends on how many actual "pixels" this - // component has, independent of interleaved MCU blocking and such - int w = (z->img_comp[n].x+7) >> 3; - int h = (z->img_comp[n].y+7) >> 3; - for (j=0; j < h; ++j) { - for (i=0; i < w; ++i) { - int ha = z->img_comp[n].ha; - if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; - z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data); - // every data block is an MCU, so countdown the restart interval - if (--z->todo <= 0) { - if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); - // if it's NOT a restart, then just bail, so we get corrupt data - // rather than no data - if (!STBI__RESTART(z->marker)) return 1; - stbi__jpeg_reset(z); - } - } - } - return 1; - } else { // interleaved - int i,j,k,x,y; - STBI_SIMD_ALIGN(short, data[64]); - for (j=0; j < z->img_mcu_y; ++j) { - for (i=0; i < z->img_mcu_x; ++i) { - // scan an interleaved mcu... process scan_n components in order - for (k=0; k < z->scan_n; ++k) { - int n = z->order[k]; - // scan out an mcu's worth of this component; that's just determined - // by the basic H and V specified for the component - for (y=0; y < z->img_comp[n].v; ++y) { - for (x=0; x < z->img_comp[n].h; ++x) { - int x2 = (i*z->img_comp[n].h + x)*8; - int y2 = (j*z->img_comp[n].v + y)*8; - int ha = z->img_comp[n].ha; - if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; - z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*y2+x2, z->img_comp[n].w2, data); - } - } - } - // after all interleaved components, that's an interleaved MCU, - // so now count down the restart interval - if (--z->todo <= 0) { - if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); - if (!STBI__RESTART(z->marker)) return 1; - stbi__jpeg_reset(z); - } - } - } - return 1; - } - } else { - if (z->scan_n == 1) { - int i,j; - int n = z->order[0]; - // non-interleaved data, we just need to process one block at a time, - // in trivial scanline order - // number of blocks to do just depends on how many actual "pixels" this - // component has, independent of interleaved MCU blocking and such - int w = (z->img_comp[n].x+7) >> 3; - int h = (z->img_comp[n].y+7) >> 3; - for (j=0; j < h; ++j) { - for (i=0; i < w; ++i) { - short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); - if (z->spec_start == 0) { - if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) - return 0; - } else { - int ha = z->img_comp[n].ha; - if (!stbi__jpeg_decode_block_prog_ac(z, data, &z->huff_ac[ha], z->fast_ac[ha])) - return 0; - } - // every data block is an MCU, so countdown the restart interval - if (--z->todo <= 0) { - if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); - if (!STBI__RESTART(z->marker)) return 1; - stbi__jpeg_reset(z); - } - } - } - return 1; - } else { // interleaved - int i,j,k,x,y; - for (j=0; j < z->img_mcu_y; ++j) { - for (i=0; i < z->img_mcu_x; ++i) { - // scan an interleaved mcu... process scan_n components in order - for (k=0; k < z->scan_n; ++k) { - int n = z->order[k]; - // scan out an mcu's worth of this component; that's just determined - // by the basic H and V specified for the component - for (y=0; y < z->img_comp[n].v; ++y) { - for (x=0; x < z->img_comp[n].h; ++x) { - int x2 = (i*z->img_comp[n].h + x); - int y2 = (j*z->img_comp[n].v + y); - short *data = z->img_comp[n].coeff + 64 * (x2 + y2 * z->img_comp[n].coeff_w); - if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) - return 0; - } - } - } - // after all interleaved components, that's an interleaved MCU, - // so now count down the restart interval - if (--z->todo <= 0) { - if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); - if (!STBI__RESTART(z->marker)) return 1; - stbi__jpeg_reset(z); - } - } - } - return 1; - } - } -} - -static void stbi__jpeg_dequantize(short *data, stbi__uint16 *dequant) -{ - int i; - for (i=0; i < 64; ++i) - data[i] *= dequant[i]; -} - -static void stbi__jpeg_finish(stbi__jpeg *z) -{ - if (z->progressive) { - // dequantize and idct the data - int i,j,n; - for (n=0; n < z->s->img_n; ++n) { - int w = (z->img_comp[n].x+7) >> 3; - int h = (z->img_comp[n].y+7) >> 3; - for (j=0; j < h; ++j) { - for (i=0; i < w; ++i) { - short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); - stbi__jpeg_dequantize(data, z->dequant[z->img_comp[n].tq]); - z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data); - } - } - } - } -} - -static int stbi__process_marker(stbi__jpeg *z, int m) -{ - int L; - switch (m) { - case STBI__MARKER_none: // no marker found - return stbi__err("expected marker","Corrupt JPEG"); - - case 0xDD: // DRI - specify restart interval - if (stbi__get16be(z->s) != 4) return stbi__err("bad DRI len","Corrupt JPEG"); - z->restart_interval = stbi__get16be(z->s); - return 1; - - case 0xDB: // DQT - define quantization table - L = stbi__get16be(z->s)-2; - while (L > 0) { - int q = stbi__get8(z->s); - int p = q >> 4, sixteen = (p != 0); - int t = q & 15,i; - if (p != 0 && p != 1) return stbi__err("bad DQT type","Corrupt JPEG"); - if (t > 3) return stbi__err("bad DQT table","Corrupt JPEG"); - - for (i=0; i < 64; ++i) - z->dequant[t][stbi__jpeg_dezigzag[i]] = (stbi__uint16)(sixteen ? stbi__get16be(z->s) : stbi__get8(z->s)); - L -= (sixteen ? 129 : 65); - } - return L==0; - - case 0xC4: // DHT - define huffman table - L = stbi__get16be(z->s)-2; - while (L > 0) { - stbi_uc *v; - int sizes[16],i,n=0; - int q = stbi__get8(z->s); - int tc = q >> 4; - int th = q & 15; - if (tc > 1 || th > 3) return stbi__err("bad DHT header","Corrupt JPEG"); - for (i=0; i < 16; ++i) { - sizes[i] = stbi__get8(z->s); - n += sizes[i]; - } - L -= 17; - if (tc == 0) { - if (!stbi__build_huffman(z->huff_dc+th, sizes)) return 0; - v = z->huff_dc[th].values; - } else { - if (!stbi__build_huffman(z->huff_ac+th, sizes)) return 0; - v = z->huff_ac[th].values; - } - for (i=0; i < n; ++i) - v[i] = stbi__get8(z->s); - if (tc != 0) - stbi__build_fast_ac(z->fast_ac[th], z->huff_ac + th); - L -= n; - } - return L==0; - } - - // check for comment block or APP blocks - if ((m >= 0xE0 && m <= 0xEF) || m == 0xFE) { - L = stbi__get16be(z->s); - if (L < 2) { - if (m == 0xFE) - return stbi__err("bad COM len","Corrupt JPEG"); - else - return stbi__err("bad APP len","Corrupt JPEG"); - } - L -= 2; - - if (m == 0xE0 && L >= 5) { // JFIF APP0 segment - static const unsigned char tag[5] = {'J','F','I','F','\0'}; - int ok = 1; - int i; - for (i=0; i < 5; ++i) - if (stbi__get8(z->s) != tag[i]) - ok = 0; - L -= 5; - if (ok) - z->jfif = 1; - } else if (m == 0xEE && L >= 12) { // Adobe APP14 segment - static const unsigned char tag[6] = {'A','d','o','b','e','\0'}; - int ok = 1; - int i; - for (i=0; i < 6; ++i) - if (stbi__get8(z->s) != tag[i]) - ok = 0; - L -= 6; - if (ok) { - stbi__get8(z->s); // version - stbi__get16be(z->s); // flags0 - stbi__get16be(z->s); // flags1 - z->app14_color_transform = stbi__get8(z->s); // color transform - L -= 6; - } - } - - stbi__skip(z->s, L); - return 1; - } - - return stbi__err("unknown marker","Corrupt JPEG"); -} - -// after we see SOS -static int stbi__process_scan_header(stbi__jpeg *z) -{ - int i; - int Ls = stbi__get16be(z->s); - z->scan_n = stbi__get8(z->s); - if (z->scan_n < 1 || z->scan_n > 4 || z->scan_n > (int) z->s->img_n) return stbi__err("bad SOS component count","Corrupt JPEG"); - if (Ls != 6+2*z->scan_n) return stbi__err("bad SOS len","Corrupt JPEG"); - for (i=0; i < z->scan_n; ++i) { - int id = stbi__get8(z->s), which; - int q = stbi__get8(z->s); - for (which = 0; which < z->s->img_n; ++which) - if (z->img_comp[which].id == id) - break; - if (which == z->s->img_n) return 0; // no match - z->img_comp[which].hd = q >> 4; if (z->img_comp[which].hd > 3) return stbi__err("bad DC huff","Corrupt JPEG"); - z->img_comp[which].ha = q & 15; if (z->img_comp[which].ha > 3) return stbi__err("bad AC huff","Corrupt JPEG"); - z->order[i] = which; - } - - { - int aa; - z->spec_start = stbi__get8(z->s); - z->spec_end = stbi__get8(z->s); // should be 63, but might be 0 - aa = stbi__get8(z->s); - z->succ_high = (aa >> 4); - z->succ_low = (aa & 15); - if (z->progressive) { - if (z->spec_start > 63 || z->spec_end > 63 || z->spec_start > z->spec_end || z->succ_high > 13 || z->succ_low > 13) - return stbi__err("bad SOS", "Corrupt JPEG"); - } else { - if (z->spec_start != 0) return stbi__err("bad SOS","Corrupt JPEG"); - if (z->succ_high != 0 || z->succ_low != 0) return stbi__err("bad SOS","Corrupt JPEG"); - z->spec_end = 63; - } - } - - return 1; -} - -static int stbi__free_jpeg_components(stbi__jpeg *z, int ncomp, int why) -{ - int i; - for (i=0; i < ncomp; ++i) { - if (z->img_comp[i].raw_data) { - STBI_FREE(z->img_comp[i].raw_data); - z->img_comp[i].raw_data = NULL; - z->img_comp[i].data = NULL; - } - if (z->img_comp[i].raw_coeff) { - STBI_FREE(z->img_comp[i].raw_coeff); - z->img_comp[i].raw_coeff = 0; - z->img_comp[i].coeff = 0; - } - if (z->img_comp[i].linebuf) { - STBI_FREE(z->img_comp[i].linebuf); - z->img_comp[i].linebuf = NULL; - } - } - return why; -} - -static int stbi__process_frame_header(stbi__jpeg *z, int scan) -{ - stbi__context *s = z->s; - int Lf,p,i,q, h_max=1,v_max=1,c; - Lf = stbi__get16be(s); if (Lf < 11) return stbi__err("bad SOF len","Corrupt JPEG"); // JPEG - p = stbi__get8(s); if (p != 8) return stbi__err("only 8-bit","JPEG format not supported: 8-bit only"); // JPEG baseline - s->img_y = stbi__get16be(s); if (s->img_y == 0) return stbi__err("no header height", "JPEG format not supported: delayed height"); // Legal, but we don't handle it--but neither does IJG - s->img_x = stbi__get16be(s); if (s->img_x == 0) return stbi__err("0 width","Corrupt JPEG"); // JPEG requires - c = stbi__get8(s); - if (c != 3 && c != 1 && c != 4) return stbi__err("bad component count","Corrupt JPEG"); - s->img_n = c; - for (i=0; i < c; ++i) { - z->img_comp[i].data = NULL; - z->img_comp[i].linebuf = NULL; - } - - if (Lf != 8+3*s->img_n) return stbi__err("bad SOF len","Corrupt JPEG"); - - z->rgb = 0; - for (i=0; i < s->img_n; ++i) { - static const unsigned char rgb[3] = { 'R', 'G', 'B' }; - z->img_comp[i].id = stbi__get8(s); - if (s->img_n == 3 && z->img_comp[i].id == rgb[i]) - ++z->rgb; - q = stbi__get8(s); - z->img_comp[i].h = (q >> 4); if (!z->img_comp[i].h || z->img_comp[i].h > 4) return stbi__err("bad H","Corrupt JPEG"); - z->img_comp[i].v = q & 15; if (!z->img_comp[i].v || z->img_comp[i].v > 4) return stbi__err("bad V","Corrupt JPEG"); - z->img_comp[i].tq = stbi__get8(s); if (z->img_comp[i].tq > 3) return stbi__err("bad TQ","Corrupt JPEG"); - } - - if (scan != STBI__SCAN_load) return 1; - - if (!stbi__mad3sizes_valid(s->img_x, s->img_y, s->img_n, 0)) return stbi__err("too large", "Image too large to decode"); - - for (i=0; i < s->img_n; ++i) { - if (z->img_comp[i].h > h_max) h_max = z->img_comp[i].h; - if (z->img_comp[i].v > v_max) v_max = z->img_comp[i].v; - } - - // compute interleaved mcu info - z->img_h_max = h_max; - z->img_v_max = v_max; - z->img_mcu_w = h_max * 8; - z->img_mcu_h = v_max * 8; - // these sizes can't be more than 17 bits - z->img_mcu_x = (s->img_x + z->img_mcu_w-1) / z->img_mcu_w; - z->img_mcu_y = (s->img_y + z->img_mcu_h-1) / z->img_mcu_h; - - for (i=0; i < s->img_n; ++i) { - // number of effective pixels (e.g. for non-interleaved MCU) - z->img_comp[i].x = (s->img_x * z->img_comp[i].h + h_max-1) / h_max; - z->img_comp[i].y = (s->img_y * z->img_comp[i].v + v_max-1) / v_max; - // to simplify generation, we'll allocate enough memory to decode - // the bogus oversized data from using interleaved MCUs and their - // big blocks (e.g. a 16x16 iMCU on an image of width 33); we won't - // discard the extra data until colorspace conversion - // - // img_mcu_x, img_mcu_y: <=17 bits; comp[i].h and .v are <=4 (checked earlier) - // so these muls can't overflow with 32-bit ints (which we require) - z->img_comp[i].w2 = z->img_mcu_x * z->img_comp[i].h * 8; - z->img_comp[i].h2 = z->img_mcu_y * z->img_comp[i].v * 8; - z->img_comp[i].coeff = 0; - z->img_comp[i].raw_coeff = 0; - z->img_comp[i].linebuf = NULL; - z->img_comp[i].raw_data = stbi__malloc_mad2(z->img_comp[i].w2, z->img_comp[i].h2, 15); - if (z->img_comp[i].raw_data == NULL) - return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory")); - // align blocks for idct using mmx/sse - z->img_comp[i].data = (stbi_uc*) (((size_t) z->img_comp[i].raw_data + 15) & ~15); - if (z->progressive) { - // w2, h2 are multiples of 8 (see above) - z->img_comp[i].coeff_w = z->img_comp[i].w2 / 8; - z->img_comp[i].coeff_h = z->img_comp[i].h2 / 8; - z->img_comp[i].raw_coeff = stbi__malloc_mad3(z->img_comp[i].w2, z->img_comp[i].h2, sizeof(short), 15); - if (z->img_comp[i].raw_coeff == NULL) - return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory")); - z->img_comp[i].coeff = (short*) (((size_t) z->img_comp[i].raw_coeff + 15) & ~15); - } - } - - return 1; -} - -// use comparisons since in some cases we handle more than one case (e.g. SOF) -#define stbi__DNL(x) ((x) == 0xdc) -#define stbi__SOI(x) ((x) == 0xd8) -#define stbi__EOI(x) ((x) == 0xd9) -#define stbi__SOF(x) ((x) == 0xc0 || (x) == 0xc1 || (x) == 0xc2) -#define stbi__SOS(x) ((x) == 0xda) - -#define stbi__SOF_progressive(x) ((x) == 0xc2) - -static int stbi__decode_jpeg_header(stbi__jpeg *z, int scan) -{ - int m; - z->jfif = 0; - z->app14_color_transform = -1; // valid values are 0,1,2 - z->marker = STBI__MARKER_none; // initialize cached marker to empty - m = stbi__get_marker(z); - if (!stbi__SOI(m)) return stbi__err("no SOI","Corrupt JPEG"); - if (scan == STBI__SCAN_type) return 1; - m = stbi__get_marker(z); - while (!stbi__SOF(m)) { - if (!stbi__process_marker(z,m)) return 0; - m = stbi__get_marker(z); - while (m == STBI__MARKER_none) { - // some files have extra padding after their blocks, so ok, we'll scan - if (stbi__at_eof(z->s)) return stbi__err("no SOF", "Corrupt JPEG"); - m = stbi__get_marker(z); - } - } - z->progressive = stbi__SOF_progressive(m); - if (!stbi__process_frame_header(z, scan)) return 0; - return 1; -} - -// decode image to YCbCr format -static int stbi__decode_jpeg_image(stbi__jpeg *j) -{ - int m; - for (m = 0; m < 4; m++) { - j->img_comp[m].raw_data = NULL; - j->img_comp[m].raw_coeff = NULL; - } - j->restart_interval = 0; - if (!stbi__decode_jpeg_header(j, STBI__SCAN_load)) return 0; - m = stbi__get_marker(j); - while (!stbi__EOI(m)) { - if (stbi__SOS(m)) { - if (!stbi__process_scan_header(j)) return 0; - if (!stbi__parse_entropy_coded_data(j)) return 0; - if (j->marker == STBI__MARKER_none ) { - // handle 0s at the end of image data from IP Kamera 9060 - while (!stbi__at_eof(j->s)) { - int x = stbi__get8(j->s); - if (x == 255) { - j->marker = stbi__get8(j->s); - break; - } - } - // if we reach eof without hitting a marker, stbi__get_marker() below will fail and we'll eventually return 0 - } - } else if (stbi__DNL(m)) { - int Ld = stbi__get16be(j->s); - stbi__uint32 NL = stbi__get16be(j->s); - if (Ld != 4) return stbi__err("bad DNL len", "Corrupt JPEG"); - if (NL != j->s->img_y) return stbi__err("bad DNL height", "Corrupt JPEG"); - } else { - if (!stbi__process_marker(j, m)) return 0; - } - m = stbi__get_marker(j); - } - if (j->progressive) - stbi__jpeg_finish(j); - return 1; -} - -// static jfif-centered resampling (across block boundaries) - -typedef stbi_uc *(*resample_row_func)(stbi_uc *out, stbi_uc *in0, stbi_uc *in1, - int w, int hs); - -#define stbi__div4(x) ((stbi_uc) ((x) >> 2)) - -static stbi_uc *resample_row_1(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) -{ - STBI_NOTUSED(out); - STBI_NOTUSED(in_far); - STBI_NOTUSED(w); - STBI_NOTUSED(hs); - return in_near; -} - -static stbi_uc* stbi__resample_row_v_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) -{ - // need to generate two samples vertically for every one in input - int i; - STBI_NOTUSED(hs); - for (i=0; i < w; ++i) - out[i] = stbi__div4(3*in_near[i] + in_far[i] + 2); - return out; -} - -static stbi_uc* stbi__resample_row_h_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) -{ - // need to generate two samples horizontally for every one in input - int i; - stbi_uc *input = in_near; - - if (w == 1) { - // if only one sample, can't do any interpolation - out[0] = out[1] = input[0]; - return out; - } - - out[0] = input[0]; - out[1] = stbi__div4(input[0]*3 + input[1] + 2); - for (i=1; i < w-1; ++i) { - int n = 3*input[i]+2; - out[i*2+0] = stbi__div4(n+input[i-1]); - out[i*2+1] = stbi__div4(n+input[i+1]); - } - out[i*2+0] = stbi__div4(input[w-2]*3 + input[w-1] + 2); - out[i*2+1] = input[w-1]; - - STBI_NOTUSED(in_far); - STBI_NOTUSED(hs); - - return out; -} - -#define stbi__div16(x) ((stbi_uc) ((x) >> 4)) - -static stbi_uc *stbi__resample_row_hv_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) -{ - // need to generate 2x2 samples for every one in input - int i,t0,t1; - if (w == 1) { - out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2); - return out; - } - - t1 = 3*in_near[0] + in_far[0]; - out[0] = stbi__div4(t1+2); - for (i=1; i < w; ++i) { - t0 = t1; - t1 = 3*in_near[i]+in_far[i]; - out[i*2-1] = stbi__div16(3*t0 + t1 + 8); - out[i*2 ] = stbi__div16(3*t1 + t0 + 8); - } - out[w*2-1] = stbi__div4(t1+2); - - STBI_NOTUSED(hs); - - return out; -} - -#if defined(STBI_SSE2) || defined(STBI_NEON) -static stbi_uc *stbi__resample_row_hv_2_simd(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) -{ - // need to generate 2x2 samples for every one in input - int i=0,t0,t1; - - if (w == 1) { - out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2); - return out; - } - - t1 = 3*in_near[0] + in_far[0]; - // process groups of 8 pixels for as long as we can. - // note we can't handle the last pixel in a row in this loop - // because we need to handle the filter boundary conditions. - for (; i < ((w-1) & ~7); i += 8) { -#if defined(STBI_SSE2) - // load and perform the vertical filtering pass - // this uses 3*x + y = 4*x + (y - x) - __m128i zero = _mm_setzero_si128(); - __m128i farb = _mm_loadl_epi64((__m128i *) (in_far + i)); - __m128i nearb = _mm_loadl_epi64((__m128i *) (in_near + i)); - __m128i farw = _mm_unpacklo_epi8(farb, zero); - __m128i nearw = _mm_unpacklo_epi8(nearb, zero); - __m128i diff = _mm_sub_epi16(farw, nearw); - __m128i nears = _mm_slli_epi16(nearw, 2); - __m128i curr = _mm_add_epi16(nears, diff); // current row - - // horizontal filter works the same based on shifted vers of current - // row. "prev" is current row shifted right by 1 pixel; we need to - // insert the previous pixel value (from t1). - // "next" is current row shifted left by 1 pixel, with first pixel - // of next block of 8 pixels added in. - __m128i prv0 = _mm_slli_si128(curr, 2); - __m128i nxt0 = _mm_srli_si128(curr, 2); - __m128i prev = _mm_insert_epi16(prv0, t1, 0); - __m128i next = _mm_insert_epi16(nxt0, 3*in_near[i+8] + in_far[i+8], 7); - - // horizontal filter, polyphase implementation since it's convenient: - // even pixels = 3*cur + prev = cur*4 + (prev - cur) - // odd pixels = 3*cur + next = cur*4 + (next - cur) - // note the shared term. - __m128i bias = _mm_set1_epi16(8); - __m128i curs = _mm_slli_epi16(curr, 2); - __m128i prvd = _mm_sub_epi16(prev, curr); - __m128i nxtd = _mm_sub_epi16(next, curr); - __m128i curb = _mm_add_epi16(curs, bias); - __m128i even = _mm_add_epi16(prvd, curb); - __m128i odd = _mm_add_epi16(nxtd, curb); - - // interleave even and odd pixels, then undo scaling. - __m128i int0 = _mm_unpacklo_epi16(even, odd); - __m128i int1 = _mm_unpackhi_epi16(even, odd); - __m128i de0 = _mm_srli_epi16(int0, 4); - __m128i de1 = _mm_srli_epi16(int1, 4); - - // pack and write output - __m128i outv = _mm_packus_epi16(de0, de1); - _mm_storeu_si128((__m128i *) (out + i*2), outv); -#elif defined(STBI_NEON) - // load and perform the vertical filtering pass - // this uses 3*x + y = 4*x + (y - x) - uint8x8_t farb = vld1_u8(in_far + i); - uint8x8_t nearb = vld1_u8(in_near + i); - int16x8_t diff = vreinterpretq_s16_u16(vsubl_u8(farb, nearb)); - int16x8_t nears = vreinterpretq_s16_u16(vshll_n_u8(nearb, 2)); - int16x8_t curr = vaddq_s16(nears, diff); // current row - - // horizontal filter works the same based on shifted vers of current - // row. "prev" is current row shifted right by 1 pixel; we need to - // insert the previous pixel value (from t1). - // "next" is current row shifted left by 1 pixel, with first pixel - // of next block of 8 pixels added in. - int16x8_t prv0 = vextq_s16(curr, curr, 7); - int16x8_t nxt0 = vextq_s16(curr, curr, 1); - int16x8_t prev = vsetq_lane_s16(t1, prv0, 0); - int16x8_t next = vsetq_lane_s16(3*in_near[i+8] + in_far[i+8], nxt0, 7); - - // horizontal filter, polyphase implementation since it's convenient: - // even pixels = 3*cur + prev = cur*4 + (prev - cur) - // odd pixels = 3*cur + next = cur*4 + (next - cur) - // note the shared term. - int16x8_t curs = vshlq_n_s16(curr, 2); - int16x8_t prvd = vsubq_s16(prev, curr); - int16x8_t nxtd = vsubq_s16(next, curr); - int16x8_t even = vaddq_s16(curs, prvd); - int16x8_t odd = vaddq_s16(curs, nxtd); - - // undo scaling and round, then store with even/odd phases interleaved - uint8x8x2_t o; - o.val[0] = vqrshrun_n_s16(even, 4); - o.val[1] = vqrshrun_n_s16(odd, 4); - vst2_u8(out + i*2, o); -#endif - - // "previous" value for next iter - t1 = 3*in_near[i+7] + in_far[i+7]; - } - - t0 = t1; - t1 = 3*in_near[i] + in_far[i]; - out[i*2] = stbi__div16(3*t1 + t0 + 8); - - for (++i; i < w; ++i) { - t0 = t1; - t1 = 3*in_near[i]+in_far[i]; - out[i*2-1] = stbi__div16(3*t0 + t1 + 8); - out[i*2 ] = stbi__div16(3*t1 + t0 + 8); - } - out[w*2-1] = stbi__div4(t1+2); - - STBI_NOTUSED(hs); - - return out; -} -#endif - -static stbi_uc *stbi__resample_row_generic(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) -{ - // resample with nearest-neighbor - int i,j; - STBI_NOTUSED(in_far); - for (i=0; i < w; ++i) - for (j=0; j < hs; ++j) - out[i*hs+j] = in_near[i]; - return out; -} - -// this is a reduced-precision calculation of YCbCr-to-RGB introduced -// to make sure the code produces the same results in both SIMD and scalar -#define stbi__float2fixed(x) (((int) ((x) * 4096.0f + 0.5f)) << 8) -static void stbi__YCbCr_to_RGB_row(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step) -{ - int i; - for (i=0; i < count; ++i) { - int y_fixed = (y[i] << 20) + (1<<19); // rounding - int r,g,b; - int cr = pcr[i] - 128; - int cb = pcb[i] - 128; - r = y_fixed + cr* stbi__float2fixed(1.40200f); - g = y_fixed + (cr*-stbi__float2fixed(0.71414f)) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000); - b = y_fixed + cb* stbi__float2fixed(1.77200f); - r >>= 20; - g >>= 20; - b >>= 20; - if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; } - if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; } - if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; } - out[0] = (stbi_uc)r; - out[1] = (stbi_uc)g; - out[2] = (stbi_uc)b; - out[3] = 255; - out += step; - } -} - -#if defined(STBI_SSE2) || defined(STBI_NEON) -static void stbi__YCbCr_to_RGB_simd(stbi_uc *out, stbi_uc const *y, stbi_uc const *pcb, stbi_uc const *pcr, int count, int step) -{ - int i = 0; - -#ifdef STBI_SSE2 - // step == 3 is pretty ugly on the final interleave, and i'm not convinced - // it's useful in practice (you wouldn't use it for textures, for example). - // so just accelerate step == 4 case. - if (step == 4) { - // this is a fairly straightforward implementation and not super-optimized. - __m128i signflip = _mm_set1_epi8(-0x80); - __m128i cr_const0 = _mm_set1_epi16( (short) ( 1.40200f*4096.0f+0.5f)); - __m128i cr_const1 = _mm_set1_epi16( - (short) ( 0.71414f*4096.0f+0.5f)); - __m128i cb_const0 = _mm_set1_epi16( - (short) ( 0.34414f*4096.0f+0.5f)); - __m128i cb_const1 = _mm_set1_epi16( (short) ( 1.77200f*4096.0f+0.5f)); - __m128i y_bias = _mm_set1_epi8((char) (unsigned char) 128); - __m128i xw = _mm_set1_epi16(255); // alpha channel - - for (; i+7 < count; i += 8) { - // load - __m128i y_bytes = _mm_loadl_epi64((__m128i *) (y+i)); - __m128i cr_bytes = _mm_loadl_epi64((__m128i *) (pcr+i)); - __m128i cb_bytes = _mm_loadl_epi64((__m128i *) (pcb+i)); - __m128i cr_biased = _mm_xor_si128(cr_bytes, signflip); // -128 - __m128i cb_biased = _mm_xor_si128(cb_bytes, signflip); // -128 - - // unpack to short (and left-shift cr, cb by 8) - __m128i yw = _mm_unpacklo_epi8(y_bias, y_bytes); - __m128i crw = _mm_unpacklo_epi8(_mm_setzero_si128(), cr_biased); - __m128i cbw = _mm_unpacklo_epi8(_mm_setzero_si128(), cb_biased); - - // color transform - __m128i yws = _mm_srli_epi16(yw, 4); - __m128i cr0 = _mm_mulhi_epi16(cr_const0, crw); - __m128i cb0 = _mm_mulhi_epi16(cb_const0, cbw); - __m128i cb1 = _mm_mulhi_epi16(cbw, cb_const1); - __m128i cr1 = _mm_mulhi_epi16(crw, cr_const1); - __m128i rws = _mm_add_epi16(cr0, yws); - __m128i gwt = _mm_add_epi16(cb0, yws); - __m128i bws = _mm_add_epi16(yws, cb1); - __m128i gws = _mm_add_epi16(gwt, cr1); - - // descale - __m128i rw = _mm_srai_epi16(rws, 4); - __m128i bw = _mm_srai_epi16(bws, 4); - __m128i gw = _mm_srai_epi16(gws, 4); - - // back to byte, set up for transpose - __m128i brb = _mm_packus_epi16(rw, bw); - __m128i gxb = _mm_packus_epi16(gw, xw); - - // transpose to interleave channels - __m128i t0 = _mm_unpacklo_epi8(brb, gxb); - __m128i t1 = _mm_unpackhi_epi8(brb, gxb); - __m128i o0 = _mm_unpacklo_epi16(t0, t1); - __m128i o1 = _mm_unpackhi_epi16(t0, t1); - - // store - _mm_storeu_si128((__m128i *) (out + 0), o0); - _mm_storeu_si128((__m128i *) (out + 16), o1); - out += 32; - } - } -#endif - -#ifdef STBI_NEON - // in this version, step=3 support would be easy to add. but is there demand? - if (step == 4) { - // this is a fairly straightforward implementation and not super-optimized. - uint8x8_t signflip = vdup_n_u8(0x80); - int16x8_t cr_const0 = vdupq_n_s16( (short) ( 1.40200f*4096.0f+0.5f)); - int16x8_t cr_const1 = vdupq_n_s16( - (short) ( 0.71414f*4096.0f+0.5f)); - int16x8_t cb_const0 = vdupq_n_s16( - (short) ( 0.34414f*4096.0f+0.5f)); - int16x8_t cb_const1 = vdupq_n_s16( (short) ( 1.77200f*4096.0f+0.5f)); - - for (; i+7 < count; i += 8) { - // load - uint8x8_t y_bytes = vld1_u8(y + i); - uint8x8_t cr_bytes = vld1_u8(pcr + i); - uint8x8_t cb_bytes = vld1_u8(pcb + i); - int8x8_t cr_biased = vreinterpret_s8_u8(vsub_u8(cr_bytes, signflip)); - int8x8_t cb_biased = vreinterpret_s8_u8(vsub_u8(cb_bytes, signflip)); - - // expand to s16 - int16x8_t yws = vreinterpretq_s16_u16(vshll_n_u8(y_bytes, 4)); - int16x8_t crw = vshll_n_s8(cr_biased, 7); - int16x8_t cbw = vshll_n_s8(cb_biased, 7); - - // color transform - int16x8_t cr0 = vqdmulhq_s16(crw, cr_const0); - int16x8_t cb0 = vqdmulhq_s16(cbw, cb_const0); - int16x8_t cr1 = vqdmulhq_s16(crw, cr_const1); - int16x8_t cb1 = vqdmulhq_s16(cbw, cb_const1); - int16x8_t rws = vaddq_s16(yws, cr0); - int16x8_t gws = vaddq_s16(vaddq_s16(yws, cb0), cr1); - int16x8_t bws = vaddq_s16(yws, cb1); - - // undo scaling, round, convert to byte - uint8x8x4_t o; - o.val[0] = vqrshrun_n_s16(rws, 4); - o.val[1] = vqrshrun_n_s16(gws, 4); - o.val[2] = vqrshrun_n_s16(bws, 4); - o.val[3] = vdup_n_u8(255); - - // store, interleaving r/g/b/a - vst4_u8(out, o); - out += 8*4; - } - } -#endif - - for (; i < count; ++i) { - int y_fixed = (y[i] << 20) + (1<<19); // rounding - int r,g,b; - int cr = pcr[i] - 128; - int cb = pcb[i] - 128; - r = y_fixed + cr* stbi__float2fixed(1.40200f); - g = y_fixed + cr*-stbi__float2fixed(0.71414f) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000); - b = y_fixed + cb* stbi__float2fixed(1.77200f); - r >>= 20; - g >>= 20; - b >>= 20; - if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; } - if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; } - if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; } - out[0] = (stbi_uc)r; - out[1] = (stbi_uc)g; - out[2] = (stbi_uc)b; - out[3] = 255; - out += step; - } -} -#endif - -// set up the kernels -static void stbi__setup_jpeg(stbi__jpeg *j) -{ - j->idct_block_kernel = stbi__idct_block; - j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_row; - j->resample_row_hv_2_kernel = stbi__resample_row_hv_2; - -#ifdef STBI_SSE2 - if (stbi__sse2_available()) { - j->idct_block_kernel = stbi__idct_simd; - j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; - j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; - } -#endif - -#ifdef STBI_NEON - j->idct_block_kernel = stbi__idct_simd; - j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; - j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; -#endif -} - -// clean up the temporary component buffers -static void stbi__cleanup_jpeg(stbi__jpeg *j) -{ - stbi__free_jpeg_components(j, j->s->img_n, 0); -} - -typedef struct -{ - resample_row_func resample; - stbi_uc *line0,*line1; - int hs,vs; // expansion factor in each axis - int w_lores; // horizontal pixels pre-expansion - int ystep; // how far through vertical expansion we are - int ypos; // which pre-expansion row we're on -} stbi__resample; - -// fast 0..255 * 0..255 => 0..255 rounded multiplication -static stbi_uc stbi__blinn_8x8(stbi_uc x, stbi_uc y) -{ - unsigned int t = x*y + 128; - return (stbi_uc) ((t + (t >>8)) >> 8); -} - -static stbi_uc *load_jpeg_image(stbi__jpeg *z, int *out_x, int *out_y, int *comp, int req_comp) -{ - int n, decode_n, is_rgb; - z->s->img_n = 0; // make stbi__cleanup_jpeg safe - - // validate req_comp - if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); - - // load a jpeg image from whichever source, but leave in YCbCr format - if (!stbi__decode_jpeg_image(z)) { stbi__cleanup_jpeg(z); return NULL; } - - // determine actual number of components to generate - n = req_comp ? req_comp : z->s->img_n >= 3 ? 3 : 1; - - is_rgb = z->s->img_n == 3 && (z->rgb == 3 || (z->app14_color_transform == 0 && !z->jfif)); - - if (z->s->img_n == 3 && n < 3 && !is_rgb) - decode_n = 1; - else - decode_n = z->s->img_n; - - // resample and color-convert - { - int k; - unsigned int i,j; - stbi_uc *output; - stbi_uc *coutput[4] = { NULL, NULL, NULL, NULL }; - - stbi__resample res_comp[4]; - - for (k=0; k < decode_n; ++k) { - stbi__resample *r = &res_comp[k]; - - // allocate line buffer big enough for upsampling off the edges - // with upsample factor of 4 - z->img_comp[k].linebuf = (stbi_uc *) stbi__malloc(z->s->img_x + 3); - if (!z->img_comp[k].linebuf) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); } - - r->hs = z->img_h_max / z->img_comp[k].h; - r->vs = z->img_v_max / z->img_comp[k].v; - r->ystep = r->vs >> 1; - r->w_lores = (z->s->img_x + r->hs-1) / r->hs; - r->ypos = 0; - r->line0 = r->line1 = z->img_comp[k].data; - - if (r->hs == 1 && r->vs == 1) r->resample = resample_row_1; - else if (r->hs == 1 && r->vs == 2) r->resample = stbi__resample_row_v_2; - else if (r->hs == 2 && r->vs == 1) r->resample = stbi__resample_row_h_2; - else if (r->hs == 2 && r->vs == 2) r->resample = z->resample_row_hv_2_kernel; - else r->resample = stbi__resample_row_generic; - } - - // can't error after this so, this is safe - output = (stbi_uc *) stbi__malloc_mad3(n, z->s->img_x, z->s->img_y, 1); - if (!output) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); } - - // now go ahead and resample - for (j=0; j < z->s->img_y; ++j) { - stbi_uc *out = output + n * z->s->img_x * j; - for (k=0; k < decode_n; ++k) { - stbi__resample *r = &res_comp[k]; - int y_bot = r->ystep >= (r->vs >> 1); - coutput[k] = r->resample(z->img_comp[k].linebuf, - y_bot ? r->line1 : r->line0, - y_bot ? r->line0 : r->line1, - r->w_lores, r->hs); - if (++r->ystep >= r->vs) { - r->ystep = 0; - r->line0 = r->line1; - if (++r->ypos < z->img_comp[k].y) - r->line1 += z->img_comp[k].w2; - } - } - if (n >= 3) { - stbi_uc *y = coutput[0]; - if (z->s->img_n == 3) { - if (is_rgb) { - for (i=0; i < z->s->img_x; ++i) { - out[0] = y[i]; - out[1] = coutput[1][i]; - out[2] = coutput[2][i]; - out[3] = 255; - out += n; - } - } else { - z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); - } - } else if (z->s->img_n == 4) { - if (z->app14_color_transform == 0) { // CMYK - for (i=0; i < z->s->img_x; ++i) { - stbi_uc m = coutput[3][i]; - out[0] = stbi__blinn_8x8(coutput[0][i], m); - out[1] = stbi__blinn_8x8(coutput[1][i], m); - out[2] = stbi__blinn_8x8(coutput[2][i], m); - out[3] = 255; - out += n; - } - } else if (z->app14_color_transform == 2) { // YCCK - z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); - for (i=0; i < z->s->img_x; ++i) { - stbi_uc m = coutput[3][i]; - out[0] = stbi__blinn_8x8(255 - out[0], m); - out[1] = stbi__blinn_8x8(255 - out[1], m); - out[2] = stbi__blinn_8x8(255 - out[2], m); - out += n; - } - } else { // YCbCr + alpha? Ignore the fourth channel for now - z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); - } - } else - for (i=0; i < z->s->img_x; ++i) { - out[0] = out[1] = out[2] = y[i]; - out[3] = 255; // not used if n==3 - out += n; - } - } else { - if (is_rgb) { - if (n == 1) - for (i=0; i < z->s->img_x; ++i) - *out++ = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); - else { - for (i=0; i < z->s->img_x; ++i, out += 2) { - out[0] = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); - out[1] = 255; - } - } - } else if (z->s->img_n == 4 && z->app14_color_transform == 0) { - for (i=0; i < z->s->img_x; ++i) { - stbi_uc m = coutput[3][i]; - stbi_uc r = stbi__blinn_8x8(coutput[0][i], m); - stbi_uc g = stbi__blinn_8x8(coutput[1][i], m); - stbi_uc b = stbi__blinn_8x8(coutput[2][i], m); - out[0] = stbi__compute_y(r, g, b); - out[1] = 255; - out += n; - } - } else if (z->s->img_n == 4 && z->app14_color_transform == 2) { - for (i=0; i < z->s->img_x; ++i) { - out[0] = stbi__blinn_8x8(255 - coutput[0][i], coutput[3][i]); - out[1] = 255; - out += n; - } - } else { - stbi_uc *y = coutput[0]; - if (n == 1) - for (i=0; i < z->s->img_x; ++i) out[i] = y[i]; - else - for (i=0; i < z->s->img_x; ++i) { *out++ = y[i]; *out++ = 255; } - } - } - } - stbi__cleanup_jpeg(z); - *out_x = z->s->img_x; - *out_y = z->s->img_y; - if (comp) *comp = z->s->img_n >= 3 ? 3 : 1; // report original components, not output - return output; - } -} - -static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) -{ - unsigned char* result; - stbi__jpeg* j = (stbi__jpeg*) stbi__malloc(sizeof(stbi__jpeg)); - STBI_NOTUSED(ri); - j->s = s; - stbi__setup_jpeg(j); - result = load_jpeg_image(j, x,y,comp,req_comp); - STBI_FREE(j); - return result; -} - -static int stbi__jpeg_test(stbi__context *s) -{ - int r; - stbi__jpeg* j = (stbi__jpeg*)stbi__malloc(sizeof(stbi__jpeg)); - j->s = s; - stbi__setup_jpeg(j); - r = stbi__decode_jpeg_header(j, STBI__SCAN_type); - stbi__rewind(s); - STBI_FREE(j); - return r; -} - -static int stbi__jpeg_info_raw(stbi__jpeg *j, int *x, int *y, int *comp) -{ - if (!stbi__decode_jpeg_header(j, STBI__SCAN_header)) { - stbi__rewind( j->s ); - return 0; - } - if (x) *x = j->s->img_x; - if (y) *y = j->s->img_y; - if (comp) *comp = j->s->img_n >= 3 ? 3 : 1; - return 1; -} - -static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp) -{ - int result; - stbi__jpeg* j = (stbi__jpeg*) (stbi__malloc(sizeof(stbi__jpeg))); - j->s = s; - result = stbi__jpeg_info_raw(j, x, y, comp); - STBI_FREE(j); - return result; -} -#endif - -// public domain zlib decode v0.2 Sean Barrett 2006-11-18 -// simple implementation -// - all input must be provided in an upfront buffer -// - all output is written to a single output buffer (can malloc/realloc) -// performance -// - fast huffman - -#ifndef STBI_NO_ZLIB - -// fast-way is faster to check than jpeg huffman, but slow way is slower -#define STBI__ZFAST_BITS 9 // accelerate all cases in default tables -#define STBI__ZFAST_MASK ((1 << STBI__ZFAST_BITS) - 1) - -// zlib-style huffman encoding -// (jpegs packs from left, zlib from right, so can't share code) -typedef struct -{ - stbi__uint16 fast[1 << STBI__ZFAST_BITS]; - stbi__uint16 firstcode[16]; - int maxcode[17]; - stbi__uint16 firstsymbol[16]; - stbi_uc size[288]; - stbi__uint16 value[288]; -} stbi__zhuffman; - -stbi_inline static int stbi__bitreverse16(int n) -{ - n = ((n & 0xAAAA) >> 1) | ((n & 0x5555) << 1); - n = ((n & 0xCCCC) >> 2) | ((n & 0x3333) << 2); - n = ((n & 0xF0F0) >> 4) | ((n & 0x0F0F) << 4); - n = ((n & 0xFF00) >> 8) | ((n & 0x00FF) << 8); - return n; -} - -stbi_inline static int stbi__bit_reverse(int v, int bits) -{ - STBI_ASSERT(bits <= 16); - // to bit reverse n bits, reverse 16 and shift - // e.g. 11 bits, bit reverse and shift away 5 - return stbi__bitreverse16(v) >> (16-bits); -} - -static int stbi__zbuild_huffman(stbi__zhuffman *z, const stbi_uc *sizelist, int num) -{ - int i,k=0; - int code, next_code[16], sizes[17]; - - // DEFLATE spec for generating codes - memset(sizes, 0, sizeof(sizes)); - memset(z->fast, 0, sizeof(z->fast)); - for (i=0; i < num; ++i) - ++sizes[sizelist[i]]; - sizes[0] = 0; - for (i=1; i < 16; ++i) - if (sizes[i] > (1 << i)) - return stbi__err("bad sizes", "Corrupt PNG"); - code = 0; - for (i=1; i < 16; ++i) { - next_code[i] = code; - z->firstcode[i] = (stbi__uint16) code; - z->firstsymbol[i] = (stbi__uint16) k; - code = (code + sizes[i]); - if (sizes[i]) - if (code-1 >= (1 << i)) return stbi__err("bad codelengths","Corrupt PNG"); - z->maxcode[i] = code << (16-i); // preshift for inner loop - code <<= 1; - k += sizes[i]; - } - z->maxcode[16] = 0x10000; // sentinel - for (i=0; i < num; ++i) { - int s = sizelist[i]; - if (s) { - int c = next_code[s] - z->firstcode[s] + z->firstsymbol[s]; - stbi__uint16 fastv = (stbi__uint16) ((s << 9) | i); - z->size [c] = (stbi_uc ) s; - z->value[c] = (stbi__uint16) i; - if (s <= STBI__ZFAST_BITS) { - int j = stbi__bit_reverse(next_code[s],s); - while (j < (1 << STBI__ZFAST_BITS)) { - z->fast[j] = fastv; - j += (1 << s); - } - } - ++next_code[s]; - } - } - return 1; -} - -// zlib-from-memory implementation for PNG reading -// because PNG allows splitting the zlib stream arbitrarily, -// and it's annoying structurally to have PNG call ZLIB call PNG, -// we require PNG read all the IDATs and combine them into a single -// memory buffer - -typedef struct -{ - stbi_uc *zbuffer, *zbuffer_end; - int num_bits; - stbi__uint32 code_buffer; - - char *zout; - char *zout_start; - char *zout_end; - int z_expandable; - - stbi__zhuffman z_length, z_distance; -} stbi__zbuf; - -stbi_inline static stbi_uc stbi__zget8(stbi__zbuf *z) -{ - if (z->zbuffer >= z->zbuffer_end) return 0; - return *z->zbuffer++; -} - -static void stbi__fill_bits(stbi__zbuf *z) -{ - do { - STBI_ASSERT(z->code_buffer < (1U << z->num_bits)); - z->code_buffer |= (unsigned int) stbi__zget8(z) << z->num_bits; - z->num_bits += 8; - } while (z->num_bits <= 24); -} - -stbi_inline static unsigned int stbi__zreceive(stbi__zbuf *z, int n) -{ - unsigned int k; - if (z->num_bits < n) stbi__fill_bits(z); - k = z->code_buffer & ((1 << n) - 1); - z->code_buffer >>= n; - z->num_bits -= n; - return k; -} - -static int stbi__zhuffman_decode_slowpath(stbi__zbuf *a, stbi__zhuffman *z) -{ - int b,s,k; - // not resolved by fast table, so compute it the slow way - // use jpeg approach, which requires MSbits at top - k = stbi__bit_reverse(a->code_buffer, 16); - for (s=STBI__ZFAST_BITS+1; ; ++s) - if (k < z->maxcode[s]) - break; - if (s == 16) return -1; // invalid code! - // code size is s, so: - b = (k >> (16-s)) - z->firstcode[s] + z->firstsymbol[s]; - STBI_ASSERT(z->size[b] == s); - a->code_buffer >>= s; - a->num_bits -= s; - return z->value[b]; -} - -stbi_inline static int stbi__zhuffman_decode(stbi__zbuf *a, stbi__zhuffman *z) -{ - int b,s; - if (a->num_bits < 16) stbi__fill_bits(a); - b = z->fast[a->code_buffer & STBI__ZFAST_MASK]; - if (b) { - s = b >> 9; - a->code_buffer >>= s; - a->num_bits -= s; - return b & 511; - } - return stbi__zhuffman_decode_slowpath(a, z); -} - -static int stbi__zexpand(stbi__zbuf *z, char *zout, int n) // need to make room for n bytes -{ - char *q; - int cur, limit, old_limit; - z->zout = zout; - if (!z->z_expandable) return stbi__err("output buffer limit","Corrupt PNG"); - cur = (int) (z->zout - z->zout_start); - limit = old_limit = (int) (z->zout_end - z->zout_start); - while (cur + n > limit) - limit *= 2; - q = (char *) STBI_REALLOC_SIZED(z->zout_start, old_limit, limit); - STBI_NOTUSED(old_limit); - if (q == NULL) return stbi__err("outofmem", "Out of memory"); - z->zout_start = q; - z->zout = q + cur; - z->zout_end = q + limit; - return 1; -} - -static const int stbi__zlength_base[31] = { - 3,4,5,6,7,8,9,10,11,13, - 15,17,19,23,27,31,35,43,51,59, - 67,83,99,115,131,163,195,227,258,0,0 }; - -static const int stbi__zlength_extra[31]= -{ 0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0 }; - -static const int stbi__zdist_base[32] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193, -257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,0,0}; - -static const int stbi__zdist_extra[32] = -{ 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13}; - -static int stbi__parse_huffman_block(stbi__zbuf *a) -{ - char *zout = a->zout; - for(;;) { - int z = stbi__zhuffman_decode(a, &a->z_length); - if (z < 256) { - if (z < 0) return stbi__err("bad huffman code","Corrupt PNG"); // error in huffman codes - if (zout >= a->zout_end) { - if (!stbi__zexpand(a, zout, 1)) return 0; - zout = a->zout; - } - *zout++ = (char) z; - } else { - stbi_uc *p; - int len,dist; - if (z == 256) { - a->zout = zout; - return 1; - } - z -= 257; - len = stbi__zlength_base[z]; - if (stbi__zlength_extra[z]) len += stbi__zreceive(a, stbi__zlength_extra[z]); - z = stbi__zhuffman_decode(a, &a->z_distance); - if (z < 0) return stbi__err("bad huffman code","Corrupt PNG"); - dist = stbi__zdist_base[z]; - if (stbi__zdist_extra[z]) dist += stbi__zreceive(a, stbi__zdist_extra[z]); - if (zout - a->zout_start < dist) return stbi__err("bad dist","Corrupt PNG"); - if (zout + len > a->zout_end) { - if (!stbi__zexpand(a, zout, len)) return 0; - zout = a->zout; - } - p = (stbi_uc *) (zout - dist); - if (dist == 1) { // run of one byte; common in images. - stbi_uc v = *p; - if (len) { do *zout++ = v; while (--len); } - } else { - if (len) { do *zout++ = *p++; while (--len); } - } - } - } -} - -static int stbi__compute_huffman_codes(stbi__zbuf *a) -{ - static const stbi_uc length_dezigzag[19] = { 16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15 }; - stbi__zhuffman z_codelength; - stbi_uc lencodes[286+32+137];//padding for maximum single op - stbi_uc codelength_sizes[19]; - int i,n; - - int hlit = stbi__zreceive(a,5) + 257; - int hdist = stbi__zreceive(a,5) + 1; - int hclen = stbi__zreceive(a,4) + 4; - int ntot = hlit + hdist; - - memset(codelength_sizes, 0, sizeof(codelength_sizes)); - for (i=0; i < hclen; ++i) { - int s = stbi__zreceive(a,3); - codelength_sizes[length_dezigzag[i]] = (stbi_uc) s; - } - if (!stbi__zbuild_huffman(&z_codelength, codelength_sizes, 19)) return 0; - - n = 0; - while (n < ntot) { - int c = stbi__zhuffman_decode(a, &z_codelength); - if (c < 0 || c >= 19) return stbi__err("bad codelengths", "Corrupt PNG"); - if (c < 16) - lencodes[n++] = (stbi_uc) c; - else { - stbi_uc fill = 0; - if (c == 16) { - c = stbi__zreceive(a,2)+3; - if (n == 0) return stbi__err("bad codelengths", "Corrupt PNG"); - fill = lencodes[n-1]; - } else if (c == 17) - c = stbi__zreceive(a,3)+3; - else { - STBI_ASSERT(c == 18); - c = stbi__zreceive(a,7)+11; - } - if (ntot - n < c) return stbi__err("bad codelengths", "Corrupt PNG"); - memset(lencodes+n, fill, c); - n += c; - } - } - if (n != ntot) return stbi__err("bad codelengths","Corrupt PNG"); - if (!stbi__zbuild_huffman(&a->z_length, lencodes, hlit)) return 0; - if (!stbi__zbuild_huffman(&a->z_distance, lencodes+hlit, hdist)) return 0; - return 1; -} - -static int stbi__parse_uncompressed_block(stbi__zbuf *a) -{ - stbi_uc header[4]; - int len,nlen,k; - if (a->num_bits & 7) - stbi__zreceive(a, a->num_bits & 7); // discard - // drain the bit-packed data into header - k = 0; - while (a->num_bits > 0) { - header[k++] = (stbi_uc) (a->code_buffer & 255); // suppress MSVC run-time check - a->code_buffer >>= 8; - a->num_bits -= 8; - } - STBI_ASSERT(a->num_bits == 0); - // now fill header the normal way - while (k < 4) - header[k++] = stbi__zget8(a); - len = header[1] * 256 + header[0]; - nlen = header[3] * 256 + header[2]; - if (nlen != (len ^ 0xffff)) return stbi__err("zlib corrupt","Corrupt PNG"); - if (a->zbuffer + len > a->zbuffer_end) return stbi__err("read past buffer","Corrupt PNG"); - if (a->zout + len > a->zout_end) - if (!stbi__zexpand(a, a->zout, len)) return 0; - memcpy(a->zout, a->zbuffer, len); - a->zbuffer += len; - a->zout += len; - return 1; -} - -static int stbi__parse_zlib_header(stbi__zbuf *a) -{ - int cmf = stbi__zget8(a); - int cm = cmf & 15; - /* int cinfo = cmf >> 4; */ - int flg = stbi__zget8(a); - if ((cmf*256+flg) % 31 != 0) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec - if (flg & 32) return stbi__err("no preset dict","Corrupt PNG"); // preset dictionary not allowed in png - if (cm != 8) return stbi__err("bad compression","Corrupt PNG"); // DEFLATE required for png - // window = 1 << (8 + cinfo)... but who cares, we fully buffer output - return 1; -} - -static const stbi_uc stbi__zdefault_length[288] = -{ - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, - 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, - 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, - 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, - 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, - 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8 -}; -static const stbi_uc stbi__zdefault_distance[32] = -{ - 5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5 -}; -/* -Init algorithm: -{ - int i; // use <= to match clearly with spec - for (i=0; i <= 143; ++i) stbi__zdefault_length[i] = 8; - for ( ; i <= 255; ++i) stbi__zdefault_length[i] = 9; - for ( ; i <= 279; ++i) stbi__zdefault_length[i] = 7; - for ( ; i <= 287; ++i) stbi__zdefault_length[i] = 8; - - for (i=0; i <= 31; ++i) stbi__zdefault_distance[i] = 5; -} -*/ - -static int stbi__parse_zlib(stbi__zbuf *a, int parse_header) -{ - int final, type; - if (parse_header) - if (!stbi__parse_zlib_header(a)) return 0; - a->num_bits = 0; - a->code_buffer = 0; - do { - final = stbi__zreceive(a,1); - type = stbi__zreceive(a,2); - if (type == 0) { - if (!stbi__parse_uncompressed_block(a)) return 0; - } else if (type == 3) { - return 0; - } else { - if (type == 1) { - // use fixed code lengths - if (!stbi__zbuild_huffman(&a->z_length , stbi__zdefault_length , 288)) return 0; - if (!stbi__zbuild_huffman(&a->z_distance, stbi__zdefault_distance, 32)) return 0; - } else { - if (!stbi__compute_huffman_codes(a)) return 0; - } - if (!stbi__parse_huffman_block(a)) return 0; - } - } while (!final); - return 1; -} - -static int stbi__do_zlib(stbi__zbuf *a, char *obuf, int olen, int exp, int parse_header) -{ - a->zout_start = obuf; - a->zout = obuf; - a->zout_end = obuf + olen; - a->z_expandable = exp; - - return stbi__parse_zlib(a, parse_header); -} - -STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen) -{ - stbi__zbuf a; - char *p = (char *) stbi__malloc(initial_size); - if (p == NULL) return NULL; - a.zbuffer = (stbi_uc *) buffer; - a.zbuffer_end = (stbi_uc *) buffer + len; - if (stbi__do_zlib(&a, p, initial_size, 1, 1)) { - if (outlen) *outlen = (int) (a.zout - a.zout_start); - return a.zout_start; - } else { - STBI_FREE(a.zout_start); - return NULL; - } -} - -STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen) -{ - return stbi_zlib_decode_malloc_guesssize(buffer, len, 16384, outlen); -} - -STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header) -{ - stbi__zbuf a; - char *p = (char *) stbi__malloc(initial_size); - if (p == NULL) return NULL; - a.zbuffer = (stbi_uc *) buffer; - a.zbuffer_end = (stbi_uc *) buffer + len; - if (stbi__do_zlib(&a, p, initial_size, 1, parse_header)) { - if (outlen) *outlen = (int) (a.zout - a.zout_start); - return a.zout_start; - } else { - STBI_FREE(a.zout_start); - return NULL; - } -} - -STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen) -{ - stbi__zbuf a; - a.zbuffer = (stbi_uc *) ibuffer; - a.zbuffer_end = (stbi_uc *) ibuffer + ilen; - if (stbi__do_zlib(&a, obuffer, olen, 0, 1)) - return (int) (a.zout - a.zout_start); - else - return -1; -} - -STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen) -{ - stbi__zbuf a; - char *p = (char *) stbi__malloc(16384); - if (p == NULL) return NULL; - a.zbuffer = (stbi_uc *) buffer; - a.zbuffer_end = (stbi_uc *) buffer+len; - if (stbi__do_zlib(&a, p, 16384, 1, 0)) { - if (outlen) *outlen = (int) (a.zout - a.zout_start); - return a.zout_start; - } else { - STBI_FREE(a.zout_start); - return NULL; - } -} - -STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen) -{ - stbi__zbuf a; - a.zbuffer = (stbi_uc *) ibuffer; - a.zbuffer_end = (stbi_uc *) ibuffer + ilen; - if (stbi__do_zlib(&a, obuffer, olen, 0, 0)) - return (int) (a.zout - a.zout_start); - else - return -1; -} -#endif - -// public domain "baseline" PNG decoder v0.10 Sean Barrett 2006-11-18 -// simple implementation -// - only 8-bit samples -// - no CRC checking -// - allocates lots of intermediate memory -// - avoids problem of streaming data between subsystems -// - avoids explicit window management -// performance -// - uses stb_zlib, a PD zlib implementation with fast huffman decoding - -#ifndef STBI_NO_PNG -typedef struct -{ - stbi__uint32 length; - stbi__uint32 type; -} stbi__pngchunk; - -static stbi__pngchunk stbi__get_chunk_header(stbi__context *s) -{ - stbi__pngchunk c; - c.length = stbi__get32be(s); - c.type = stbi__get32be(s); - return c; -} - -static int stbi__check_png_header(stbi__context *s) -{ - static const stbi_uc png_sig[8] = { 137,80,78,71,13,10,26,10 }; - int i; - for (i=0; i < 8; ++i) - if (stbi__get8(s) != png_sig[i]) return stbi__err("bad png sig","Not a PNG"); - return 1; -} - -typedef struct -{ - stbi__context *s; - stbi_uc *idata, *expanded, *out; - int depth; -} stbi__png; - - -enum { - STBI__F_none=0, - STBI__F_sub=1, - STBI__F_up=2, - STBI__F_avg=3, - STBI__F_paeth=4, - // synthetic filters used for first scanline to avoid needing a dummy row of 0s - STBI__F_avg_first, - STBI__F_paeth_first -}; - -static stbi_uc first_row_filter[5] = -{ - STBI__F_none, - STBI__F_sub, - STBI__F_none, - STBI__F_avg_first, - STBI__F_paeth_first -}; - -static int stbi__paeth(int a, int b, int c) -{ - int p = a + b - c; - int pa = abs(p-a); - int pb = abs(p-b); - int pc = abs(p-c); - if (pa <= pb && pa <= pc) return a; - if (pb <= pc) return b; - return c; -} - -static const stbi_uc stbi__depth_scale_table[9] = { 0, 0xff, 0x55, 0, 0x11, 0,0,0, 0x01 }; - -// create the png data from post-deflated data -static int stbi__create_png_image_raw(stbi__png *a, stbi_uc *raw, stbi__uint32 raw_len, int out_n, stbi__uint32 x, stbi__uint32 y, int depth, int color) -{ - int bytes = (depth == 16? 2 : 1); - stbi__context *s = a->s; - stbi__uint32 i,j,stride = x*out_n*bytes; - stbi__uint32 img_len, img_width_bytes; - int k; - int img_n = s->img_n; // copy it into a local for later - - int output_bytes = out_n*bytes; - int filter_bytes = img_n*bytes; - int width = x; - - STBI_ASSERT(out_n == s->img_n || out_n == s->img_n+1); - a->out = (stbi_uc *) stbi__malloc_mad3(x, y, output_bytes, 0); // extra bytes to write off the end into - if (!a->out) return stbi__err("outofmem", "Out of memory"); - - if (!stbi__mad3sizes_valid(img_n, x, depth, 7)) return stbi__err("too large", "Corrupt PNG"); - img_width_bytes = (((img_n * x * depth) + 7) >> 3); - img_len = (img_width_bytes + 1) * y; - - // we used to check for exact match between raw_len and img_len on non-interlaced PNGs, - // but issue #276 reported a PNG in the wild that had extra data at the end (all zeros), - // so just check for raw_len < img_len always. - if (raw_len < img_len) return stbi__err("not enough pixels","Corrupt PNG"); - - for (j=0; j < y; ++j) { - stbi_uc *cur = a->out + stride*j; - stbi_uc *prior; - int filter = *raw++; - - if (filter > 4) - return stbi__err("invalid filter","Corrupt PNG"); - - if (depth < 8) { - STBI_ASSERT(img_width_bytes <= x); - cur += x*out_n - img_width_bytes; // store output to the rightmost img_len bytes, so we can decode in place - filter_bytes = 1; - width = img_width_bytes; - } - prior = cur - stride; // bugfix: need to compute this after 'cur +=' computation above - - // if first row, use special filter that doesn't sample previous row - if (j == 0) filter = first_row_filter[filter]; - - // handle first byte explicitly - for (k=0; k < filter_bytes; ++k) { - switch (filter) { - case STBI__F_none : cur[k] = raw[k]; break; - case STBI__F_sub : cur[k] = raw[k]; break; - case STBI__F_up : cur[k] = STBI__BYTECAST(raw[k] + prior[k]); break; - case STBI__F_avg : cur[k] = STBI__BYTECAST(raw[k] + (prior[k]>>1)); break; - case STBI__F_paeth : cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(0,prior[k],0)); break; - case STBI__F_avg_first : cur[k] = raw[k]; break; - case STBI__F_paeth_first: cur[k] = raw[k]; break; - } - } - - if (depth == 8) { - if (img_n != out_n) - cur[img_n] = 255; // first pixel - raw += img_n; - cur += out_n; - prior += out_n; - } else if (depth == 16) { - if (img_n != out_n) { - cur[filter_bytes] = 255; // first pixel top byte - cur[filter_bytes+1] = 255; // first pixel bottom byte - } - raw += filter_bytes; - cur += output_bytes; - prior += output_bytes; - } else { - raw += 1; - cur += 1; - prior += 1; - } - - // this is a little gross, so that we don't switch per-pixel or per-component - if (depth < 8 || img_n == out_n) { - int nk = (width - 1)*filter_bytes; - #define STBI__CASE(f) \ - case f: \ - for (k=0; k < nk; ++k) - switch (filter) { - // "none" filter turns into a memcpy here; make that explicit. - case STBI__F_none: memcpy(cur, raw, nk); break; - STBI__CASE(STBI__F_sub) { cur[k] = STBI__BYTECAST(raw[k] + cur[k-filter_bytes]); } break; - STBI__CASE(STBI__F_up) { cur[k] = STBI__BYTECAST(raw[k] + prior[k]); } break; - STBI__CASE(STBI__F_avg) { cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k-filter_bytes])>>1)); } break; - STBI__CASE(STBI__F_paeth) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes],prior[k],prior[k-filter_bytes])); } break; - STBI__CASE(STBI__F_avg_first) { cur[k] = STBI__BYTECAST(raw[k] + (cur[k-filter_bytes] >> 1)); } break; - STBI__CASE(STBI__F_paeth_first) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes],0,0)); } break; - } - #undef STBI__CASE - raw += nk; - } else { - STBI_ASSERT(img_n+1 == out_n); - #define STBI__CASE(f) \ - case f: \ - for (i=x-1; i >= 1; --i, cur[filter_bytes]=255,raw+=filter_bytes,cur+=output_bytes,prior+=output_bytes) \ - for (k=0; k < filter_bytes; ++k) - switch (filter) { - STBI__CASE(STBI__F_none) { cur[k] = raw[k]; } break; - STBI__CASE(STBI__F_sub) { cur[k] = STBI__BYTECAST(raw[k] + cur[k- output_bytes]); } break; - STBI__CASE(STBI__F_up) { cur[k] = STBI__BYTECAST(raw[k] + prior[k]); } break; - STBI__CASE(STBI__F_avg) { cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k- output_bytes])>>1)); } break; - STBI__CASE(STBI__F_paeth) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k- output_bytes],prior[k],prior[k- output_bytes])); } break; - STBI__CASE(STBI__F_avg_first) { cur[k] = STBI__BYTECAST(raw[k] + (cur[k- output_bytes] >> 1)); } break; - STBI__CASE(STBI__F_paeth_first) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k- output_bytes],0,0)); } break; - } - #undef STBI__CASE - - // the loop above sets the high byte of the pixels' alpha, but for - // 16 bit png files we also need the low byte set. we'll do that here. - if (depth == 16) { - cur = a->out + stride*j; // start at the beginning of the row again - for (i=0; i < x; ++i,cur+=output_bytes) { - cur[filter_bytes+1] = 255; - } - } - } - } - - // we make a separate pass to expand bits to pixels; for performance, - // this could run two scanlines behind the above code, so it won't - // intefere with filtering but will still be in the cache. - if (depth < 8) { - for (j=0; j < y; ++j) { - stbi_uc *cur = a->out + stride*j; - stbi_uc *in = a->out + stride*j + x*out_n - img_width_bytes; - // unpack 1/2/4-bit into a 8-bit buffer. allows us to keep the common 8-bit path optimal at minimal cost for 1/2/4-bit - // png guarante byte alignment, if width is not multiple of 8/4/2 we'll decode dummy trailing data that will be skipped in the later loop - stbi_uc scale = (color == 0) ? stbi__depth_scale_table[depth] : 1; // scale grayscale values to 0..255 range - - // note that the final byte might overshoot and write more data than desired. - // we can allocate enough data that this never writes out of memory, but it - // could also overwrite the next scanline. can it overwrite non-empty data - // on the next scanline? yes, consider 1-pixel-wide scanlines with 1-bit-per-pixel. - // so we need to explicitly clamp the final ones - - if (depth == 4) { - for (k=x*img_n; k >= 2; k-=2, ++in) { - *cur++ = scale * ((*in >> 4) ); - *cur++ = scale * ((*in ) & 0x0f); - } - if (k > 0) *cur++ = scale * ((*in >> 4) ); - } else if (depth == 2) { - for (k=x*img_n; k >= 4; k-=4, ++in) { - *cur++ = scale * ((*in >> 6) ); - *cur++ = scale * ((*in >> 4) & 0x03); - *cur++ = scale * ((*in >> 2) & 0x03); - *cur++ = scale * ((*in ) & 0x03); - } - if (k > 0) *cur++ = scale * ((*in >> 6) ); - if (k > 1) *cur++ = scale * ((*in >> 4) & 0x03); - if (k > 2) *cur++ = scale * ((*in >> 2) & 0x03); - } else if (depth == 1) { - for (k=x*img_n; k >= 8; k-=8, ++in) { - *cur++ = scale * ((*in >> 7) ); - *cur++ = scale * ((*in >> 6) & 0x01); - *cur++ = scale * ((*in >> 5) & 0x01); - *cur++ = scale * ((*in >> 4) & 0x01); - *cur++ = scale * ((*in >> 3) & 0x01); - *cur++ = scale * ((*in >> 2) & 0x01); - *cur++ = scale * ((*in >> 1) & 0x01); - *cur++ = scale * ((*in ) & 0x01); - } - if (k > 0) *cur++ = scale * ((*in >> 7) ); - if (k > 1) *cur++ = scale * ((*in >> 6) & 0x01); - if (k > 2) *cur++ = scale * ((*in >> 5) & 0x01); - if (k > 3) *cur++ = scale * ((*in >> 4) & 0x01); - if (k > 4) *cur++ = scale * ((*in >> 3) & 0x01); - if (k > 5) *cur++ = scale * ((*in >> 2) & 0x01); - if (k > 6) *cur++ = scale * ((*in >> 1) & 0x01); - } - if (img_n != out_n) { - int q; - // insert alpha = 255 - cur = a->out + stride*j; - if (img_n == 1) { - for (q=x-1; q >= 0; --q) { - cur[q*2+1] = 255; - cur[q*2+0] = cur[q]; - } - } else { - STBI_ASSERT(img_n == 3); - for (q=x-1; q >= 0; --q) { - cur[q*4+3] = 255; - cur[q*4+2] = cur[q*3+2]; - cur[q*4+1] = cur[q*3+1]; - cur[q*4+0] = cur[q*3+0]; - } - } - } - } - } else if (depth == 16) { - // force the image data from big-endian to platform-native. - // this is done in a separate pass due to the decoding relying - // on the data being untouched, but could probably be done - // per-line during decode if care is taken. - stbi_uc *cur = a->out; - stbi__uint16 *cur16 = (stbi__uint16*)cur; - - for(i=0; i < x*y*out_n; ++i,cur16++,cur+=2) { - *cur16 = (cur[0] << 8) | cur[1]; - } - } - - return 1; -} - -static int stbi__create_png_image(stbi__png *a, stbi_uc *image_data, stbi__uint32 image_data_len, int out_n, int depth, int color, int interlaced) -{ - int bytes = (depth == 16 ? 2 : 1); - int out_bytes = out_n * bytes; - stbi_uc *final; - int p; - if (!interlaced) - return stbi__create_png_image_raw(a, image_data, image_data_len, out_n, a->s->img_x, a->s->img_y, depth, color); - - // de-interlacing - final = (stbi_uc *) stbi__malloc_mad3(a->s->img_x, a->s->img_y, out_bytes, 0); - for (p=0; p < 7; ++p) { - int xorig[] = { 0,4,0,2,0,1,0 }; - int yorig[] = { 0,0,4,0,2,0,1 }; - int xspc[] = { 8,8,4,4,2,2,1 }; - int yspc[] = { 8,8,8,4,4,2,2 }; - int i,j,x,y; - // pass1_x[4] = 0, pass1_x[5] = 1, pass1_x[12] = 1 - x = (a->s->img_x - xorig[p] + xspc[p]-1) / xspc[p]; - y = (a->s->img_y - yorig[p] + yspc[p]-1) / yspc[p]; - if (x && y) { - stbi__uint32 img_len = ((((a->s->img_n * x * depth) + 7) >> 3) + 1) * y; - if (!stbi__create_png_image_raw(a, image_data, image_data_len, out_n, x, y, depth, color)) { - STBI_FREE(final); - return 0; - } - for (j=0; j < y; ++j) { - for (i=0; i < x; ++i) { - int out_y = j*yspc[p]+yorig[p]; - int out_x = i*xspc[p]+xorig[p]; - memcpy(final + out_y*a->s->img_x*out_bytes + out_x*out_bytes, - a->out + (j*x+i)*out_bytes, out_bytes); - } - } - STBI_FREE(a->out); - image_data += img_len; - image_data_len -= img_len; - } - } - a->out = final; - - return 1; -} - -static int stbi__compute_transparency(stbi__png *z, stbi_uc tc[3], int out_n) -{ - stbi__context *s = z->s; - stbi__uint32 i, pixel_count = s->img_x * s->img_y; - stbi_uc *p = z->out; - - // compute color-based transparency, assuming we've - // already got 255 as the alpha value in the output - STBI_ASSERT(out_n == 2 || out_n == 4); - - if (out_n == 2) { - for (i=0; i < pixel_count; ++i) { - p[1] = (p[0] == tc[0] ? 0 : 255); - p += 2; - } - } else { - for (i=0; i < pixel_count; ++i) { - if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) - p[3] = 0; - p += 4; - } - } - return 1; -} - -static int stbi__compute_transparency16(stbi__png *z, stbi__uint16 tc[3], int out_n) -{ - stbi__context *s = z->s; - stbi__uint32 i, pixel_count = s->img_x * s->img_y; - stbi__uint16 *p = (stbi__uint16*) z->out; - - // compute color-based transparency, assuming we've - // already got 65535 as the alpha value in the output - STBI_ASSERT(out_n == 2 || out_n == 4); - - if (out_n == 2) { - for (i = 0; i < pixel_count; ++i) { - p[1] = (p[0] == tc[0] ? 0 : 65535); - p += 2; - } - } else { - for (i = 0; i < pixel_count; ++i) { - if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) - p[3] = 0; - p += 4; - } - } - return 1; -} - -static int stbi__expand_png_palette(stbi__png *a, stbi_uc *palette, int len, int pal_img_n) -{ - stbi__uint32 i, pixel_count = a->s->img_x * a->s->img_y; - stbi_uc *p, *temp_out, *orig = a->out; - - p = (stbi_uc *) stbi__malloc_mad2(pixel_count, pal_img_n, 0); - if (p == NULL) return stbi__err("outofmem", "Out of memory"); - - // between here and free(out) below, exitting would leak - temp_out = p; - - if (pal_img_n == 3) { - for (i=0; i < pixel_count; ++i) { - int n = orig[i]*4; - p[0] = palette[n ]; - p[1] = palette[n+1]; - p[2] = palette[n+2]; - p += 3; - } - } else { - for (i=0; i < pixel_count; ++i) { - int n = orig[i]*4; - p[0] = palette[n ]; - p[1] = palette[n+1]; - p[2] = palette[n+2]; - p[3] = palette[n+3]; - p += 4; - } - } - STBI_FREE(a->out); - a->out = temp_out; - - STBI_NOTUSED(len); - - return 1; -} - -static int stbi__unpremultiply_on_load = 0; -static int stbi__de_iphone_flag = 0; - -STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply) -{ - stbi__unpremultiply_on_load = flag_true_if_should_unpremultiply; -} - -STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert) -{ - stbi__de_iphone_flag = flag_true_if_should_convert; -} - -static void stbi__de_iphone(stbi__png *z) -{ - stbi__context *s = z->s; - stbi__uint32 i, pixel_count = s->img_x * s->img_y; - stbi_uc *p = z->out; - - if (s->img_out_n == 3) { // convert bgr to rgb - for (i=0; i < pixel_count; ++i) { - stbi_uc t = p[0]; - p[0] = p[2]; - p[2] = t; - p += 3; - } - } else { - STBI_ASSERT(s->img_out_n == 4); - if (stbi__unpremultiply_on_load) { - // convert bgr to rgb and unpremultiply - for (i=0; i < pixel_count; ++i) { - stbi_uc a = p[3]; - stbi_uc t = p[0]; - if (a) { - stbi_uc half = a / 2; - p[0] = (p[2] * 255 + half) / a; - p[1] = (p[1] * 255 + half) / a; - p[2] = ( t * 255 + half) / a; - } else { - p[0] = p[2]; - p[2] = t; - } - p += 4; - } - } else { - // convert bgr to rgb - for (i=0; i < pixel_count; ++i) { - stbi_uc t = p[0]; - p[0] = p[2]; - p[2] = t; - p += 4; - } - } - } -} - -#define STBI__PNG_TYPE(a,b,c,d) (((unsigned) (a) << 24) + ((unsigned) (b) << 16) + ((unsigned) (c) << 8) + (unsigned) (d)) - -static int stbi__parse_png_file(stbi__png *z, int scan, int req_comp) -{ - stbi_uc palette[1024], pal_img_n=0; - stbi_uc has_trans=0, tc[3]={0}; - stbi__uint16 tc16[3]; - stbi__uint32 ioff=0, idata_limit=0, i, pal_len=0; - int first=1,k,interlace=0, color=0, is_iphone=0; - stbi__context *s = z->s; - - z->expanded = NULL; - z->idata = NULL; - z->out = NULL; - - if (!stbi__check_png_header(s)) return 0; - - if (scan == STBI__SCAN_type) return 1; - - for (;;) { - stbi__pngchunk c = stbi__get_chunk_header(s); - switch (c.type) { - case STBI__PNG_TYPE('C','g','B','I'): - is_iphone = 1; - stbi__skip(s, c.length); - break; - case STBI__PNG_TYPE('I','H','D','R'): { - int comp,filter; - if (!first) return stbi__err("multiple IHDR","Corrupt PNG"); - first = 0; - if (c.length != 13) return stbi__err("bad IHDR len","Corrupt PNG"); - s->img_x = stbi__get32be(s); if (s->img_x > (1 << 24)) return stbi__err("too large","Very large image (corrupt?)"); - s->img_y = stbi__get32be(s); if (s->img_y > (1 << 24)) return stbi__err("too large","Very large image (corrupt?)"); - z->depth = stbi__get8(s); if (z->depth != 1 && z->depth != 2 && z->depth != 4 && z->depth != 8 && z->depth != 16) return stbi__err("1/2/4/8/16-bit only","PNG not supported: 1/2/4/8/16-bit only"); - color = stbi__get8(s); if (color > 6) return stbi__err("bad ctype","Corrupt PNG"); - if (color == 3 && z->depth == 16) return stbi__err("bad ctype","Corrupt PNG"); - if (color == 3) pal_img_n = 3; else if (color & 1) return stbi__err("bad ctype","Corrupt PNG"); - comp = stbi__get8(s); if (comp) return stbi__err("bad comp method","Corrupt PNG"); - filter= stbi__get8(s); if (filter) return stbi__err("bad filter method","Corrupt PNG"); - interlace = stbi__get8(s); if (interlace>1) return stbi__err("bad interlace method","Corrupt PNG"); - if (!s->img_x || !s->img_y) return stbi__err("0-pixel image","Corrupt PNG"); - if (!pal_img_n) { - s->img_n = (color & 2 ? 3 : 1) + (color & 4 ? 1 : 0); - if ((1 << 30) / s->img_x / s->img_n < s->img_y) return stbi__err("too large", "Image too large to decode"); - if (scan == STBI__SCAN_header) return 1; - } else { - // if paletted, then pal_n is our final components, and - // img_n is # components to decompress/filter. - s->img_n = 1; - if ((1 << 30) / s->img_x / 4 < s->img_y) return stbi__err("too large","Corrupt PNG"); - // if SCAN_header, have to scan to see if we have a tRNS - } - break; - } - - case STBI__PNG_TYPE('P','L','T','E'): { - if (first) return stbi__err("first not IHDR", "Corrupt PNG"); - if (c.length > 256*3) return stbi__err("invalid PLTE","Corrupt PNG"); - pal_len = c.length / 3; - if (pal_len * 3 != c.length) return stbi__err("invalid PLTE","Corrupt PNG"); - for (i=0; i < pal_len; ++i) { - palette[i*4+0] = stbi__get8(s); - palette[i*4+1] = stbi__get8(s); - palette[i*4+2] = stbi__get8(s); - palette[i*4+3] = 255; - } - break; - } - - case STBI__PNG_TYPE('t','R','N','S'): { - if (first) return stbi__err("first not IHDR", "Corrupt PNG"); - if (z->idata) return stbi__err("tRNS after IDAT","Corrupt PNG"); - if (pal_img_n) { - if (scan == STBI__SCAN_header) { s->img_n = 4; return 1; } - if (pal_len == 0) return stbi__err("tRNS before PLTE","Corrupt PNG"); - if (c.length > pal_len) return stbi__err("bad tRNS len","Corrupt PNG"); - pal_img_n = 4; - for (i=0; i < c.length; ++i) - palette[i*4+3] = stbi__get8(s); - } else { - if (!(s->img_n & 1)) return stbi__err("tRNS with alpha","Corrupt PNG"); - if (c.length != (stbi__uint32) s->img_n*2) return stbi__err("bad tRNS len","Corrupt PNG"); - has_trans = 1; - if (z->depth == 16) { - for (k = 0; k < s->img_n; ++k) tc16[k] = (stbi__uint16)stbi__get16be(s); // copy the values as-is - } else { - for (k = 0; k < s->img_n; ++k) tc[k] = (stbi_uc)(stbi__get16be(s) & 255) * stbi__depth_scale_table[z->depth]; // non 8-bit images will be larger - } - } - break; - } - - case STBI__PNG_TYPE('I','D','A','T'): { - if (first) return stbi__err("first not IHDR", "Corrupt PNG"); - if (pal_img_n && !pal_len) return stbi__err("no PLTE","Corrupt PNG"); - if (scan == STBI__SCAN_header) { s->img_n = pal_img_n; return 1; } - if ((int)(ioff + c.length) < (int)ioff) return 0; - if (ioff + c.length > idata_limit) { - stbi__uint32 idata_limit_old = idata_limit; - stbi_uc *p; - if (idata_limit == 0) idata_limit = c.length > 4096 ? c.length : 4096; - while (ioff + c.length > idata_limit) - idata_limit *= 2; - STBI_NOTUSED(idata_limit_old); - p = (stbi_uc *) STBI_REALLOC_SIZED(z->idata, idata_limit_old, idata_limit); if (p == NULL) return stbi__err("outofmem", "Out of memory"); - z->idata = p; - } - if (!stbi__getn(s, z->idata+ioff,c.length)) return stbi__err("outofdata","Corrupt PNG"); - ioff += c.length; - break; - } - - case STBI__PNG_TYPE('I','E','N','D'): { - stbi__uint32 raw_len, bpl; - if (first) return stbi__err("first not IHDR", "Corrupt PNG"); - if (scan != STBI__SCAN_load) return 1; - if (z->idata == NULL) return stbi__err("no IDAT","Corrupt PNG"); - // initial guess for decoded data size to avoid unnecessary reallocs - bpl = (s->img_x * z->depth + 7) / 8; // bytes per line, per component - raw_len = bpl * s->img_y * s->img_n /* pixels */ + s->img_y /* filter mode per row */; - z->expanded = (stbi_uc *) stbi_zlib_decode_malloc_guesssize_headerflag((char *) z->idata, ioff, raw_len, (int *) &raw_len, !is_iphone); - if (z->expanded == NULL) return 0; // zlib should set error - STBI_FREE(z->idata); z->idata = NULL; - if ((req_comp == s->img_n+1 && req_comp != 3 && !pal_img_n) || has_trans) - s->img_out_n = s->img_n+1; - else - s->img_out_n = s->img_n; - if (!stbi__create_png_image(z, z->expanded, raw_len, s->img_out_n, z->depth, color, interlace)) return 0; - if (has_trans) { - if (z->depth == 16) { - if (!stbi__compute_transparency16(z, tc16, s->img_out_n)) return 0; - } else { - if (!stbi__compute_transparency(z, tc, s->img_out_n)) return 0; - } - } - if (is_iphone && stbi__de_iphone_flag && s->img_out_n > 2) - stbi__de_iphone(z); - if (pal_img_n) { - // pal_img_n == 3 or 4 - s->img_n = pal_img_n; // record the actual colors we had - s->img_out_n = pal_img_n; - if (req_comp >= 3) s->img_out_n = req_comp; - if (!stbi__expand_png_palette(z, palette, pal_len, s->img_out_n)) - return 0; - } else if (has_trans) { - // non-paletted image with tRNS -> source image has (constant) alpha - ++s->img_n; - } - STBI_FREE(z->expanded); z->expanded = NULL; - // end of PNG chunk, read and skip CRC - stbi__get32be(s); - return 1; - } - - default: - // if critical, fail - if (first) return stbi__err("first not IHDR", "Corrupt PNG"); - if ((c.type & (1 << 29)) == 0) { - #ifndef STBI_NO_FAILURE_STRINGS - // not threadsafe - static char invalid_chunk[] = "XXXX PNG chunk not known"; - invalid_chunk[0] = STBI__BYTECAST(c.type >> 24); - invalid_chunk[1] = STBI__BYTECAST(c.type >> 16); - invalid_chunk[2] = STBI__BYTECAST(c.type >> 8); - invalid_chunk[3] = STBI__BYTECAST(c.type >> 0); - #endif - return stbi__err(invalid_chunk, "PNG not supported: unknown PNG chunk type"); - } - stbi__skip(s, c.length); - break; - } - // end of PNG chunk, read and skip CRC - stbi__get32be(s); - } -} - -static void *stbi__do_png(stbi__png *p, int *x, int *y, int *n, int req_comp, stbi__result_info *ri) -{ - void *result=NULL; - if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); - if (stbi__parse_png_file(p, STBI__SCAN_load, req_comp)) { - if (p->depth < 8) - ri->bits_per_channel = 8; - else - ri->bits_per_channel = p->depth; - result = p->out; - p->out = NULL; - if (req_comp && req_comp != p->s->img_out_n) { - if (ri->bits_per_channel == 8) - result = stbi__convert_format((unsigned char *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); - else - result = stbi__convert_format16((stbi__uint16 *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); - p->s->img_out_n = req_comp; - if (result == NULL) return result; - } - *x = p->s->img_x; - *y = p->s->img_y; - if (n) *n = p->s->img_n; - } - STBI_FREE(p->out); p->out = NULL; - STBI_FREE(p->expanded); p->expanded = NULL; - STBI_FREE(p->idata); p->idata = NULL; - - return result; -} - -static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) -{ - stbi__png p; - p.s = s; - return stbi__do_png(&p, x,y,comp,req_comp, ri); -} - -static int stbi__png_test(stbi__context *s) -{ - int r; - r = stbi__check_png_header(s); - stbi__rewind(s); - return r; -} - -static int stbi__png_info_raw(stbi__png *p, int *x, int *y, int *comp) -{ - if (!stbi__parse_png_file(p, STBI__SCAN_header, 0)) { - stbi__rewind( p->s ); - return 0; - } - if (x) *x = p->s->img_x; - if (y) *y = p->s->img_y; - if (comp) *comp = p->s->img_n; - return 1; -} - -static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp) -{ - stbi__png p; - p.s = s; - return stbi__png_info_raw(&p, x, y, comp); -} - -static int stbi__png_is16(stbi__context *s) -{ - stbi__png p; - p.s = s; - if (!stbi__png_info_raw(&p, NULL, NULL, NULL)) - return 0; - if (p.depth != 16) { - stbi__rewind(p.s); - return 0; - } - return 1; -} -#endif - -// Microsoft/Windows BMP image - -#ifndef STBI_NO_BMP -static int stbi__bmp_test_raw(stbi__context *s) -{ - int r; - int sz; - if (stbi__get8(s) != 'B') return 0; - if (stbi__get8(s) != 'M') return 0; - stbi__get32le(s); // discard filesize - stbi__get16le(s); // discard reserved - stbi__get16le(s); // discard reserved - stbi__get32le(s); // discard data offset - sz = stbi__get32le(s); - r = (sz == 12 || sz == 40 || sz == 56 || sz == 108 || sz == 124); - return r; -} - -static int stbi__bmp_test(stbi__context *s) -{ - int r = stbi__bmp_test_raw(s); - stbi__rewind(s); - return r; -} - - -// returns 0..31 for the highest set bit -static int stbi__high_bit(unsigned int z) -{ - int n=0; - if (z == 0) return -1; - if (z >= 0x10000) { n += 16; z >>= 16; } - if (z >= 0x00100) { n += 8; z >>= 8; } - if (z >= 0x00010) { n += 4; z >>= 4; } - if (z >= 0x00004) { n += 2; z >>= 2; } - if (z >= 0x00002) { n += 1;/* >>= 1;*/ } - return n; -} - -static int stbi__bitcount(unsigned int a) -{ - a = (a & 0x55555555) + ((a >> 1) & 0x55555555); // max 2 - a = (a & 0x33333333) + ((a >> 2) & 0x33333333); // max 4 - a = (a + (a >> 4)) & 0x0f0f0f0f; // max 8 per 4, now 8 bits - a = (a + (a >> 8)); // max 16 per 8 bits - a = (a + (a >> 16)); // max 32 per 8 bits - return a & 0xff; -} - -// extract an arbitrarily-aligned N-bit value (N=bits) -// from v, and then make it 8-bits long and fractionally -// extend it to full full range. -static int stbi__shiftsigned(unsigned int v, int shift, int bits) -{ - static unsigned int mul_table[9] = { - 0, - 0xff/*0b11111111*/, 0x55/*0b01010101*/, 0x49/*0b01001001*/, 0x11/*0b00010001*/, - 0x21/*0b00100001*/, 0x41/*0b01000001*/, 0x81/*0b10000001*/, 0x01/*0b00000001*/, - }; - static unsigned int shift_table[9] = { - 0, 0,0,1,0,2,4,6,0, - }; - if (shift < 0) - v <<= -shift; - else - v >>= shift; - STBI_ASSERT(v < 256); - v >>= (8-bits); - STBI_ASSERT(bits >= 0 && bits <= 8); - return (int) ((unsigned) v * mul_table[bits]) >> shift_table[bits]; -} - -typedef struct -{ - int bpp, offset, hsz; - unsigned int mr,mg,mb,ma, all_a; - int extra_read; -} stbi__bmp_data; - -static void *stbi__bmp_parse_header(stbi__context *s, stbi__bmp_data *info) -{ - int hsz; - if (stbi__get8(s) != 'B' || stbi__get8(s) != 'M') return stbi__errpuc("not BMP", "Corrupt BMP"); - stbi__get32le(s); // discard filesize - stbi__get16le(s); // discard reserved - stbi__get16le(s); // discard reserved - info->offset = stbi__get32le(s); - info->hsz = hsz = stbi__get32le(s); - info->mr = info->mg = info->mb = info->ma = 0; - info->extra_read = 14; - - if (hsz != 12 && hsz != 40 && hsz != 56 && hsz != 108 && hsz != 124) return stbi__errpuc("unknown BMP", "BMP type not supported: unknown"); - if (hsz == 12) { - s->img_x = stbi__get16le(s); - s->img_y = stbi__get16le(s); - } else { - s->img_x = stbi__get32le(s); - s->img_y = stbi__get32le(s); - } - if (stbi__get16le(s) != 1) return stbi__errpuc("bad BMP", "bad BMP"); - info->bpp = stbi__get16le(s); - if (hsz != 12) { - int compress = stbi__get32le(s); - if (compress == 1 || compress == 2) return stbi__errpuc("BMP RLE", "BMP type not supported: RLE"); - stbi__get32le(s); // discard sizeof - stbi__get32le(s); // discard hres - stbi__get32le(s); // discard vres - stbi__get32le(s); // discard colorsused - stbi__get32le(s); // discard max important - if (hsz == 40 || hsz == 56) { - if (hsz == 56) { - stbi__get32le(s); - stbi__get32le(s); - stbi__get32le(s); - stbi__get32le(s); - } - if (info->bpp == 16 || info->bpp == 32) { - if (compress == 0) { - if (info->bpp == 32) { - info->mr = 0xffu << 16; - info->mg = 0xffu << 8; - info->mb = 0xffu << 0; - info->ma = 0xffu << 24; - info->all_a = 0; // if all_a is 0 at end, then we loaded alpha channel but it was all 0 - } else { - info->mr = 31u << 10; - info->mg = 31u << 5; - info->mb = 31u << 0; - } - } else if (compress == 3) { - info->mr = stbi__get32le(s); - info->mg = stbi__get32le(s); - info->mb = stbi__get32le(s); - info->extra_read += 12; - // not documented, but generated by photoshop and handled by mspaint - if (info->mr == info->mg && info->mg == info->mb) { - // ?!?!? - return stbi__errpuc("bad BMP", "bad BMP"); - } - } else - return stbi__errpuc("bad BMP", "bad BMP"); - } - } else { - int i; - if (hsz != 108 && hsz != 124) - return stbi__errpuc("bad BMP", "bad BMP"); - info->mr = stbi__get32le(s); - info->mg = stbi__get32le(s); - info->mb = stbi__get32le(s); - info->ma = stbi__get32le(s); - stbi__get32le(s); // discard color space - for (i=0; i < 12; ++i) - stbi__get32le(s); // discard color space parameters - if (hsz == 124) { - stbi__get32le(s); // discard rendering intent - stbi__get32le(s); // discard offset of profile data - stbi__get32le(s); // discard size of profile data - stbi__get32le(s); // discard reserved - } - } - } - return (void *) 1; -} - - -static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) -{ - stbi_uc *out; - unsigned int mr=0,mg=0,mb=0,ma=0, all_a; - stbi_uc pal[256][4]; - int psize=0,i,j,width; - int flip_vertically, pad, target; - stbi__bmp_data info; - STBI_NOTUSED(ri); - - info.all_a = 255; - if (stbi__bmp_parse_header(s, &info) == NULL) - return NULL; // error code already set - - flip_vertically = ((int) s->img_y) > 0; - s->img_y = abs((int) s->img_y); - - mr = info.mr; - mg = info.mg; - mb = info.mb; - ma = info.ma; - all_a = info.all_a; - - if (info.hsz == 12) { - if (info.bpp < 24) - psize = (info.offset - info.extra_read - 24) / 3; - } else { - if (info.bpp < 16) - psize = (info.offset - info.extra_read - info.hsz) >> 2; - } - if (psize == 0) { - STBI_ASSERT(info.offset == (s->img_buffer - s->buffer_start)); - } - - if (info.bpp == 24 && ma == 0xff000000) - s->img_n = 3; - else - s->img_n = ma ? 4 : 3; - if (req_comp && req_comp >= 3) // we can directly decode 3 or 4 - target = req_comp; - else - target = s->img_n; // if they want monochrome, we'll post-convert - - // sanity-check size - if (!stbi__mad3sizes_valid(target, s->img_x, s->img_y, 0)) - return stbi__errpuc("too large", "Corrupt BMP"); - - out = (stbi_uc *) stbi__malloc_mad3(target, s->img_x, s->img_y, 0); - if (!out) return stbi__errpuc("outofmem", "Out of memory"); - if (info.bpp < 16) { - int z=0; - if (psize == 0 || psize > 256) { STBI_FREE(out); return stbi__errpuc("invalid", "Corrupt BMP"); } - for (i=0; i < psize; ++i) { - pal[i][2] = stbi__get8(s); - pal[i][1] = stbi__get8(s); - pal[i][0] = stbi__get8(s); - if (info.hsz != 12) stbi__get8(s); - pal[i][3] = 255; - } - stbi__skip(s, info.offset - info.extra_read - info.hsz - psize * (info.hsz == 12 ? 3 : 4)); - if (info.bpp == 1) width = (s->img_x + 7) >> 3; - else if (info.bpp == 4) width = (s->img_x + 1) >> 1; - else if (info.bpp == 8) width = s->img_x; - else { STBI_FREE(out); return stbi__errpuc("bad bpp", "Corrupt BMP"); } - pad = (-width)&3; - if (info.bpp == 1) { - for (j=0; j < (int) s->img_y; ++j) { - int bit_offset = 7, v = stbi__get8(s); - for (i=0; i < (int) s->img_x; ++i) { - int color = (v>>bit_offset)&0x1; - out[z++] = pal[color][0]; - out[z++] = pal[color][1]; - out[z++] = pal[color][2]; - if (target == 4) out[z++] = 255; - if (i+1 == (int) s->img_x) break; - if((--bit_offset) < 0) { - bit_offset = 7; - v = stbi__get8(s); - } - } - stbi__skip(s, pad); - } - } else { - for (j=0; j < (int) s->img_y; ++j) { - for (i=0; i < (int) s->img_x; i += 2) { - int v=stbi__get8(s),v2=0; - if (info.bpp == 4) { - v2 = v & 15; - v >>= 4; - } - out[z++] = pal[v][0]; - out[z++] = pal[v][1]; - out[z++] = pal[v][2]; - if (target == 4) out[z++] = 255; - if (i+1 == (int) s->img_x) break; - v = (info.bpp == 8) ? stbi__get8(s) : v2; - out[z++] = pal[v][0]; - out[z++] = pal[v][1]; - out[z++] = pal[v][2]; - if (target == 4) out[z++] = 255; - } - stbi__skip(s, pad); - } - } - } else { - int rshift=0,gshift=0,bshift=0,ashift=0,rcount=0,gcount=0,bcount=0,acount=0; - int z = 0; - int easy=0; - stbi__skip(s, info.offset - info.extra_read - info.hsz); - if (info.bpp == 24) width = 3 * s->img_x; - else if (info.bpp == 16) width = 2*s->img_x; - else /* bpp = 32 and pad = 0 */ width=0; - pad = (-width) & 3; - if (info.bpp == 24) { - easy = 1; - } else if (info.bpp == 32) { - if (mb == 0xff && mg == 0xff00 && mr == 0x00ff0000 && ma == 0xff000000) - easy = 2; - } - if (!easy) { - if (!mr || !mg || !mb) { STBI_FREE(out); return stbi__errpuc("bad masks", "Corrupt BMP"); } - // right shift amt to put high bit in position #7 - rshift = stbi__high_bit(mr)-7; rcount = stbi__bitcount(mr); - gshift = stbi__high_bit(mg)-7; gcount = stbi__bitcount(mg); - bshift = stbi__high_bit(mb)-7; bcount = stbi__bitcount(mb); - ashift = stbi__high_bit(ma)-7; acount = stbi__bitcount(ma); - } - for (j=0; j < (int) s->img_y; ++j) { - if (easy) { - for (i=0; i < (int) s->img_x; ++i) { - unsigned char a; - out[z+2] = stbi__get8(s); - out[z+1] = stbi__get8(s); - out[z+0] = stbi__get8(s); - z += 3; - a = (easy == 2 ? stbi__get8(s) : 255); - all_a |= a; - if (target == 4) out[z++] = a; - } - } else { - int bpp = info.bpp; - for (i=0; i < (int) s->img_x; ++i) { - stbi__uint32 v = (bpp == 16 ? (stbi__uint32) stbi__get16le(s) : stbi__get32le(s)); - unsigned int a; - out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mr, rshift, rcount)); - out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mg, gshift, gcount)); - out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mb, bshift, bcount)); - a = (ma ? stbi__shiftsigned(v & ma, ashift, acount) : 255); - all_a |= a; - if (target == 4) out[z++] = STBI__BYTECAST(a); - } - } - stbi__skip(s, pad); - } - } - - // if alpha channel is all 0s, replace with all 255s - if (target == 4 && all_a == 0) - for (i=4*s->img_x*s->img_y-1; i >= 0; i -= 4) - out[i] = 255; - - if (flip_vertically) { - stbi_uc t; - for (j=0; j < (int) s->img_y>>1; ++j) { - stbi_uc *p1 = out + j *s->img_x*target; - stbi_uc *p2 = out + (s->img_y-1-j)*s->img_x*target; - for (i=0; i < (int) s->img_x*target; ++i) { - t = p1[i]; p1[i] = p2[i]; p2[i] = t; - } - } - } - - if (req_comp && req_comp != target) { - out = stbi__convert_format(out, target, req_comp, s->img_x, s->img_y); - if (out == NULL) return out; // stbi__convert_format frees input on failure - } - - *x = s->img_x; - *y = s->img_y; - if (comp) *comp = s->img_n; - return out; -} -#endif - -// Targa Truevision - TGA -// by Jonathan Dummer -#ifndef STBI_NO_TGA -// returns STBI_rgb or whatever, 0 on error -static int stbi__tga_get_comp(int bits_per_pixel, int is_grey, int* is_rgb16) -{ - // only RGB or RGBA (incl. 16bit) or grey allowed - if (is_rgb16) *is_rgb16 = 0; - switch(bits_per_pixel) { - case 8: return STBI_grey; - case 16: if(is_grey) return STBI_grey_alpha; - // fallthrough - case 15: if(is_rgb16) *is_rgb16 = 1; - return STBI_rgb; - case 24: // fallthrough - case 32: return bits_per_pixel/8; - default: return 0; - } -} - -static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp) -{ - int tga_w, tga_h, tga_comp, tga_image_type, tga_bits_per_pixel, tga_colormap_bpp; - int sz, tga_colormap_type; - stbi__get8(s); // discard Offset - tga_colormap_type = stbi__get8(s); // colormap type - if( tga_colormap_type > 1 ) { - stbi__rewind(s); - return 0; // only RGB or indexed allowed - } - tga_image_type = stbi__get8(s); // image type - if ( tga_colormap_type == 1 ) { // colormapped (paletted) image - if (tga_image_type != 1 && tga_image_type != 9) { - stbi__rewind(s); - return 0; - } - stbi__skip(s,4); // skip index of first colormap entry and number of entries - sz = stbi__get8(s); // check bits per palette color entry - if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) { - stbi__rewind(s); - return 0; - } - stbi__skip(s,4); // skip image x and y origin - tga_colormap_bpp = sz; - } else { // "normal" image w/o colormap - only RGB or grey allowed, +/- RLE - if ( (tga_image_type != 2) && (tga_image_type != 3) && (tga_image_type != 10) && (tga_image_type != 11) ) { - stbi__rewind(s); - return 0; // only RGB or grey allowed, +/- RLE - } - stbi__skip(s,9); // skip colormap specification and image x/y origin - tga_colormap_bpp = 0; - } - tga_w = stbi__get16le(s); - if( tga_w < 1 ) { - stbi__rewind(s); - return 0; // test width - } - tga_h = stbi__get16le(s); - if( tga_h < 1 ) { - stbi__rewind(s); - return 0; // test height - } - tga_bits_per_pixel = stbi__get8(s); // bits per pixel - stbi__get8(s); // ignore alpha bits - if (tga_colormap_bpp != 0) { - if((tga_bits_per_pixel != 8) && (tga_bits_per_pixel != 16)) { - // when using a colormap, tga_bits_per_pixel is the size of the indexes - // I don't think anything but 8 or 16bit indexes makes sense - stbi__rewind(s); - return 0; - } - tga_comp = stbi__tga_get_comp(tga_colormap_bpp, 0, NULL); - } else { - tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3) || (tga_image_type == 11), NULL); - } - if(!tga_comp) { - stbi__rewind(s); - return 0; - } - if (x) *x = tga_w; - if (y) *y = tga_h; - if (comp) *comp = tga_comp; - return 1; // seems to have passed everything -} - -static int stbi__tga_test(stbi__context *s) -{ - int res = 0; - int sz, tga_color_type; - stbi__get8(s); // discard Offset - tga_color_type = stbi__get8(s); // color type - if ( tga_color_type > 1 ) goto errorEnd; // only RGB or indexed allowed - sz = stbi__get8(s); // image type - if ( tga_color_type == 1 ) { // colormapped (paletted) image - if (sz != 1 && sz != 9) goto errorEnd; // colortype 1 demands image type 1 or 9 - stbi__skip(s,4); // skip index of first colormap entry and number of entries - sz = stbi__get8(s); // check bits per palette color entry - if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd; - stbi__skip(s,4); // skip image x and y origin - } else { // "normal" image w/o colormap - if ( (sz != 2) && (sz != 3) && (sz != 10) && (sz != 11) ) goto errorEnd; // only RGB or grey allowed, +/- RLE - stbi__skip(s,9); // skip colormap specification and image x/y origin - } - if ( stbi__get16le(s) < 1 ) goto errorEnd; // test width - if ( stbi__get16le(s) < 1 ) goto errorEnd; // test height - sz = stbi__get8(s); // bits per pixel - if ( (tga_color_type == 1) && (sz != 8) && (sz != 16) ) goto errorEnd; // for colormapped images, bpp is size of an index - if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd; - - res = 1; // if we got this far, everything's good and we can return 1 instead of 0 - -errorEnd: - stbi__rewind(s); - return res; -} - -// read 16bit value and convert to 24bit RGB -static void stbi__tga_read_rgb16(stbi__context *s, stbi_uc* out) -{ - stbi__uint16 px = (stbi__uint16)stbi__get16le(s); - stbi__uint16 fiveBitMask = 31; - // we have 3 channels with 5bits each - int r = (px >> 10) & fiveBitMask; - int g = (px >> 5) & fiveBitMask; - int b = px & fiveBitMask; - // Note that this saves the data in RGB(A) order, so it doesn't need to be swapped later - out[0] = (stbi_uc)((r * 255)/31); - out[1] = (stbi_uc)((g * 255)/31); - out[2] = (stbi_uc)((b * 255)/31); - - // some people claim that the most significant bit might be used for alpha - // (possibly if an alpha-bit is set in the "image descriptor byte") - // but that only made 16bit test images completely translucent.. - // so let's treat all 15 and 16bit TGAs as RGB with no alpha. -} - -static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) -{ - // read in the TGA header stuff - int tga_offset = stbi__get8(s); - int tga_indexed = stbi__get8(s); - int tga_image_type = stbi__get8(s); - int tga_is_RLE = 0; - int tga_palette_start = stbi__get16le(s); - int tga_palette_len = stbi__get16le(s); - int tga_palette_bits = stbi__get8(s); - int tga_x_origin = stbi__get16le(s); - int tga_y_origin = stbi__get16le(s); - int tga_width = stbi__get16le(s); - int tga_height = stbi__get16le(s); - int tga_bits_per_pixel = stbi__get8(s); - int tga_comp, tga_rgb16=0; - int tga_inverted = stbi__get8(s); - // int tga_alpha_bits = tga_inverted & 15; // the 4 lowest bits - unused (useless?) - // image data - unsigned char *tga_data; - unsigned char *tga_palette = NULL; - int i, j; - unsigned char raw_data[4] = {0}; - int RLE_count = 0; - int RLE_repeating = 0; - int read_next_pixel = 1; - STBI_NOTUSED(ri); - STBI_NOTUSED(tga_x_origin); // @TODO - STBI_NOTUSED(tga_y_origin); // @TODO - - // do a tiny bit of precessing - if ( tga_image_type >= 8 ) - { - tga_image_type -= 8; - tga_is_RLE = 1; - } - tga_inverted = 1 - ((tga_inverted >> 5) & 1); - - // If I'm paletted, then I'll use the number of bits from the palette - if ( tga_indexed ) tga_comp = stbi__tga_get_comp(tga_palette_bits, 0, &tga_rgb16); - else tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3), &tga_rgb16); - - if(!tga_comp) // shouldn't really happen, stbi__tga_test() should have ensured basic consistency - return stbi__errpuc("bad format", "Can't find out TGA pixelformat"); - - // tga info - *x = tga_width; - *y = tga_height; - if (comp) *comp = tga_comp; - - if (!stbi__mad3sizes_valid(tga_width, tga_height, tga_comp, 0)) - return stbi__errpuc("too large", "Corrupt TGA"); - - tga_data = (unsigned char*)stbi__malloc_mad3(tga_width, tga_height, tga_comp, 0); - if (!tga_data) return stbi__errpuc("outofmem", "Out of memory"); - - // skip to the data's starting position (offset usually = 0) - stbi__skip(s, tga_offset ); - - if ( !tga_indexed && !tga_is_RLE && !tga_rgb16 ) { - for (i=0; i < tga_height; ++i) { - int row = tga_inverted ? tga_height -i - 1 : i; - stbi_uc *tga_row = tga_data + row*tga_width*tga_comp; - stbi__getn(s, tga_row, tga_width * tga_comp); - } - } else { - // do I need to load a palette? - if ( tga_indexed) - { - // any data to skip? (offset usually = 0) - stbi__skip(s, tga_palette_start ); - // load the palette - tga_palette = (unsigned char*)stbi__malloc_mad2(tga_palette_len, tga_comp, 0); - if (!tga_palette) { - STBI_FREE(tga_data); - return stbi__errpuc("outofmem", "Out of memory"); - } - if (tga_rgb16) { - stbi_uc *pal_entry = tga_palette; - STBI_ASSERT(tga_comp == STBI_rgb); - for (i=0; i < tga_palette_len; ++i) { - stbi__tga_read_rgb16(s, pal_entry); - pal_entry += tga_comp; - } - } else if (!stbi__getn(s, tga_palette, tga_palette_len * tga_comp)) { - STBI_FREE(tga_data); - STBI_FREE(tga_palette); - return stbi__errpuc("bad palette", "Corrupt TGA"); - } - } - // load the data - for (i=0; i < tga_width * tga_height; ++i) - { - // if I'm in RLE mode, do I need to get a RLE stbi__pngchunk? - if ( tga_is_RLE ) - { - if ( RLE_count == 0 ) - { - // yep, get the next byte as a RLE command - int RLE_cmd = stbi__get8(s); - RLE_count = 1 + (RLE_cmd & 127); - RLE_repeating = RLE_cmd >> 7; - read_next_pixel = 1; - } else if ( !RLE_repeating ) - { - read_next_pixel = 1; - } - } else - { - read_next_pixel = 1; - } - // OK, if I need to read a pixel, do it now - if ( read_next_pixel ) - { - // load however much data we did have - if ( tga_indexed ) - { - // read in index, then perform the lookup - int pal_idx = (tga_bits_per_pixel == 8) ? stbi__get8(s) : stbi__get16le(s); - if ( pal_idx >= tga_palette_len ) { - // invalid index - pal_idx = 0; - } - pal_idx *= tga_comp; - for (j = 0; j < tga_comp; ++j) { - raw_data[j] = tga_palette[pal_idx+j]; - } - } else if(tga_rgb16) { - STBI_ASSERT(tga_comp == STBI_rgb); - stbi__tga_read_rgb16(s, raw_data); - } else { - // read in the data raw - for (j = 0; j < tga_comp; ++j) { - raw_data[j] = stbi__get8(s); - } - } - // clear the reading flag for the next pixel - read_next_pixel = 0; - } // end of reading a pixel - - // copy data - for (j = 0; j < tga_comp; ++j) - tga_data[i*tga_comp+j] = raw_data[j]; - - // in case we're in RLE mode, keep counting down - --RLE_count; - } - // do I need to invert the image? - if ( tga_inverted ) - { - for (j = 0; j*2 < tga_height; ++j) - { - int index1 = j * tga_width * tga_comp; - int index2 = (tga_height - 1 - j) * tga_width * tga_comp; - for (i = tga_width * tga_comp; i > 0; --i) - { - unsigned char temp = tga_data[index1]; - tga_data[index1] = tga_data[index2]; - tga_data[index2] = temp; - ++index1; - ++index2; - } - } - } - // clear my palette, if I had one - if ( tga_palette != NULL ) - { - STBI_FREE( tga_palette ); - } - } - - // swap RGB - if the source data was RGB16, it already is in the right order - if (tga_comp >= 3 && !tga_rgb16) - { - unsigned char* tga_pixel = tga_data; - for (i=0; i < tga_width * tga_height; ++i) - { - unsigned char temp = tga_pixel[0]; - tga_pixel[0] = tga_pixel[2]; - tga_pixel[2] = temp; - tga_pixel += tga_comp; - } - } - - // convert to target component count - if (req_comp && req_comp != tga_comp) - tga_data = stbi__convert_format(tga_data, tga_comp, req_comp, tga_width, tga_height); - - // the things I do to get rid of an error message, and yet keep - // Microsoft's C compilers happy... [8^( - tga_palette_start = tga_palette_len = tga_palette_bits = - tga_x_origin = tga_y_origin = 0; - STBI_NOTUSED(tga_palette_start); - // OK, done - return tga_data; -} -#endif - -// ************************************************************************************************* -// Photoshop PSD loader -- PD by Thatcher Ulrich, integration by Nicolas Schulz, tweaked by STB - -#ifndef STBI_NO_PSD -static int stbi__psd_test(stbi__context *s) -{ - int r = (stbi__get32be(s) == 0x38425053); - stbi__rewind(s); - return r; -} - -static int stbi__psd_decode_rle(stbi__context *s, stbi_uc *p, int pixelCount) -{ - int count, nleft, len; - - count = 0; - while ((nleft = pixelCount - count) > 0) { - len = stbi__get8(s); - if (len == 128) { - // No-op. - } else if (len < 128) { - // Copy next len+1 bytes literally. - len++; - if (len > nleft) return 0; // corrupt data - count += len; - while (len) { - *p = stbi__get8(s); - p += 4; - len--; - } - } else if (len > 128) { - stbi_uc val; - // Next -len+1 bytes in the dest are replicated from next source byte. - // (Interpret len as a negative 8-bit int.) - len = 257 - len; - if (len > nleft) return 0; // corrupt data - val = stbi__get8(s); - count += len; - while (len) { - *p = val; - p += 4; - len--; - } - } - } - - return 1; -} - -static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc) -{ - int pixelCount; - int channelCount, compression; - int channel, i; - int bitdepth; - int w,h; - stbi_uc *out; - STBI_NOTUSED(ri); - - // Check identifier - if (stbi__get32be(s) != 0x38425053) // "8BPS" - return stbi__errpuc("not PSD", "Corrupt PSD image"); - - // Check file type version. - if (stbi__get16be(s) != 1) - return stbi__errpuc("wrong version", "Unsupported version of PSD image"); - - // Skip 6 reserved bytes. - stbi__skip(s, 6 ); - - // Read the number of channels (R, G, B, A, etc). - channelCount = stbi__get16be(s); - if (channelCount < 0 || channelCount > 16) - return stbi__errpuc("wrong channel count", "Unsupported number of channels in PSD image"); - - // Read the rows and columns of the image. - h = stbi__get32be(s); - w = stbi__get32be(s); - - // Make sure the depth is 8 bits. - bitdepth = stbi__get16be(s); - if (bitdepth != 8 && bitdepth != 16) - return stbi__errpuc("unsupported bit depth", "PSD bit depth is not 8 or 16 bit"); - - // Make sure the color mode is RGB. - // Valid options are: - // 0: Bitmap - // 1: Grayscale - // 2: Indexed color - // 3: RGB color - // 4: CMYK color - // 7: Multichannel - // 8: Duotone - // 9: Lab color - if (stbi__get16be(s) != 3) - return stbi__errpuc("wrong color format", "PSD is not in RGB color format"); - - // Skip the Mode Data. (It's the palette for indexed color; other info for other modes.) - stbi__skip(s,stbi__get32be(s) ); - - // Skip the image resources. (resolution, pen tool paths, etc) - stbi__skip(s, stbi__get32be(s) ); - - // Skip the reserved data. - stbi__skip(s, stbi__get32be(s) ); - - // Find out if the data is compressed. - // Known values: - // 0: no compression - // 1: RLE compressed - compression = stbi__get16be(s); - if (compression > 1) - return stbi__errpuc("bad compression", "PSD has an unknown compression format"); - - // Check size - if (!stbi__mad3sizes_valid(4, w, h, 0)) - return stbi__errpuc("too large", "Corrupt PSD"); - - // Create the destination image. - - if (!compression && bitdepth == 16 && bpc == 16) { - out = (stbi_uc *) stbi__malloc_mad3(8, w, h, 0); - ri->bits_per_channel = 16; - } else - out = (stbi_uc *) stbi__malloc(4 * w*h); - - if (!out) return stbi__errpuc("outofmem", "Out of memory"); - pixelCount = w*h; - - // Initialize the data to zero. - //memset( out, 0, pixelCount * 4 ); - - // Finally, the image data. - if (compression) { - // RLE as used by .PSD and .TIFF - // Loop until you get the number of unpacked bytes you are expecting: - // Read the next source byte into n. - // If n is between 0 and 127 inclusive, copy the next n+1 bytes literally. - // Else if n is between -127 and -1 inclusive, copy the next byte -n+1 times. - // Else if n is 128, noop. - // Endloop - - // The RLE-compressed data is preceded by a 2-byte data count for each row in the data, - // which we're going to just skip. - stbi__skip(s, h * channelCount * 2 ); - - // Read the RLE data by channel. - for (channel = 0; channel < 4; channel++) { - stbi_uc *p; - - p = out+channel; - if (channel >= channelCount) { - // Fill this channel with default data. - for (i = 0; i < pixelCount; i++, p += 4) - *p = (channel == 3 ? 255 : 0); - } else { - // Read the RLE data. - if (!stbi__psd_decode_rle(s, p, pixelCount)) { - STBI_FREE(out); - return stbi__errpuc("corrupt", "bad RLE data"); - } - } - } - - } else { - // We're at the raw image data. It's each channel in order (Red, Green, Blue, Alpha, ...) - // where each channel consists of an 8-bit (or 16-bit) value for each pixel in the image. - - // Read the data by channel. - for (channel = 0; channel < 4; channel++) { - if (channel >= channelCount) { - // Fill this channel with default data. - if (bitdepth == 16 && bpc == 16) { - stbi__uint16 *q = ((stbi__uint16 *) out) + channel; - stbi__uint16 val = channel == 3 ? 65535 : 0; - for (i = 0; i < pixelCount; i++, q += 4) - *q = val; - } else { - stbi_uc *p = out+channel; - stbi_uc val = channel == 3 ? 255 : 0; - for (i = 0; i < pixelCount; i++, p += 4) - *p = val; - } - } else { - if (ri->bits_per_channel == 16) { // output bpc - stbi__uint16 *q = ((stbi__uint16 *) out) + channel; - for (i = 0; i < pixelCount; i++, q += 4) - *q = (stbi__uint16) stbi__get16be(s); - } else { - stbi_uc *p = out+channel; - if (bitdepth == 16) { // input bpc - for (i = 0; i < pixelCount; i++, p += 4) - *p = (stbi_uc) (stbi__get16be(s) >> 8); - } else { - for (i = 0; i < pixelCount; i++, p += 4) - *p = stbi__get8(s); - } - } - } - } - } - - // remove weird white matte from PSD - if (channelCount >= 4) { - if (ri->bits_per_channel == 16) { - for (i=0; i < w*h; ++i) { - stbi__uint16 *pixel = (stbi__uint16 *) out + 4*i; - if (pixel[3] != 0 && pixel[3] != 65535) { - float a = pixel[3] / 65535.0f; - float ra = 1.0f / a; - float inv_a = 65535.0f * (1 - ra); - pixel[0] = (stbi__uint16) (pixel[0]*ra + inv_a); - pixel[1] = (stbi__uint16) (pixel[1]*ra + inv_a); - pixel[2] = (stbi__uint16) (pixel[2]*ra + inv_a); - } - } - } else { - for (i=0; i < w*h; ++i) { - unsigned char *pixel = out + 4*i; - if (pixel[3] != 0 && pixel[3] != 255) { - float a = pixel[3] / 255.0f; - float ra = 1.0f / a; - float inv_a = 255.0f * (1 - ra); - pixel[0] = (unsigned char) (pixel[0]*ra + inv_a); - pixel[1] = (unsigned char) (pixel[1]*ra + inv_a); - pixel[2] = (unsigned char) (pixel[2]*ra + inv_a); - } - } - } - } - - // convert to desired output format - if (req_comp && req_comp != 4) { - if (ri->bits_per_channel == 16) - out = (stbi_uc *) stbi__convert_format16((stbi__uint16 *) out, 4, req_comp, w, h); - else - out = stbi__convert_format(out, 4, req_comp, w, h); - if (out == NULL) return out; // stbi__convert_format frees input on failure - } - - if (comp) *comp = 4; - *y = h; - *x = w; - - return out; -} -#endif - -// ************************************************************************************************* -// Softimage PIC loader -// by Tom Seddon -// -// See http://softimage.wiki.softimage.com/index.php/INFO:_PIC_file_format -// See http://ozviz.wasp.uwa.edu.au/~pbourke/dataformats/softimagepic/ - -#ifndef STBI_NO_PIC -static int stbi__pic_is4(stbi__context *s,const char *str) -{ - int i; - for (i=0; i<4; ++i) - if (stbi__get8(s) != (stbi_uc)str[i]) - return 0; - - return 1; -} - -static int stbi__pic_test_core(stbi__context *s) -{ - int i; - - if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) - return 0; - - for(i=0;i<84;++i) - stbi__get8(s); - - if (!stbi__pic_is4(s,"PICT")) - return 0; - - return 1; -} - -typedef struct -{ - stbi_uc size,type,channel; -} stbi__pic_packet; - -static stbi_uc *stbi__readval(stbi__context *s, int channel, stbi_uc *dest) -{ - int mask=0x80, i; - - for (i=0; i<4; ++i, mask>>=1) { - if (channel & mask) { - if (stbi__at_eof(s)) return stbi__errpuc("bad file","PIC file too short"); - dest[i]=stbi__get8(s); - } - } - - return dest; -} - -static void stbi__copyval(int channel,stbi_uc *dest,const stbi_uc *src) -{ - int mask=0x80,i; - - for (i=0;i<4; ++i, mask>>=1) - if (channel&mask) - dest[i]=src[i]; -} - -static stbi_uc *stbi__pic_load_core(stbi__context *s,int width,int height,int *comp, stbi_uc *result) -{ - int act_comp=0,num_packets=0,y,chained; - stbi__pic_packet packets[10]; - - // this will (should...) cater for even some bizarre stuff like having data - // for the same channel in multiple packets. - do { - stbi__pic_packet *packet; - - if (num_packets==sizeof(packets)/sizeof(packets[0])) - return stbi__errpuc("bad format","too many packets"); - - packet = &packets[num_packets++]; - - chained = stbi__get8(s); - packet->size = stbi__get8(s); - packet->type = stbi__get8(s); - packet->channel = stbi__get8(s); - - act_comp |= packet->channel; - - if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (reading packets)"); - if (packet->size != 8) return stbi__errpuc("bad format","packet isn't 8bpp"); - } while (chained); - - *comp = (act_comp & 0x10 ? 4 : 3); // has alpha channel? - - for(y=0; y<height; ++y) { - int packet_idx; - - for(packet_idx=0; packet_idx < num_packets; ++packet_idx) { - stbi__pic_packet *packet = &packets[packet_idx]; - stbi_uc *dest = result+y*width*4; - - switch (packet->type) { - default: - return stbi__errpuc("bad format","packet has bad compression type"); - - case 0: {//uncompressed - int x; - - for(x=0;x<width;++x, dest+=4) - if (!stbi__readval(s,packet->channel,dest)) - return 0; - break; - } - - case 1://Pure RLE - { - int left=width, i; - - while (left>0) { - stbi_uc count,value[4]; - - count=stbi__get8(s); - if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pure read count)"); - - if (count > left) - count = (stbi_uc) left; - - if (!stbi__readval(s,packet->channel,value)) return 0; - - for(i=0; i<count; ++i,dest+=4) - stbi__copyval(packet->channel,dest,value); - left -= count; - } - } - break; - - case 2: {//Mixed RLE - int left=width; - while (left>0) { - int count = stbi__get8(s), i; - if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (mixed read count)"); - - if (count >= 128) { // Repeated - stbi_uc value[4]; - - if (count==128) - count = stbi__get16be(s); - else - count -= 127; - if (count > left) - return stbi__errpuc("bad file","scanline overrun"); - - if (!stbi__readval(s,packet->channel,value)) - return 0; - - for(i=0;i<count;++i, dest += 4) - stbi__copyval(packet->channel,dest,value); - } else { // Raw - ++count; - if (count>left) return stbi__errpuc("bad file","scanline overrun"); - - for(i=0;i<count;++i, dest+=4) - if (!stbi__readval(s,packet->channel,dest)) - return 0; - } - left-=count; - } - break; - } - } - } - } - - return result; -} - -static void *stbi__pic_load(stbi__context *s,int *px,int *py,int *comp,int req_comp, stbi__result_info *ri) -{ - stbi_uc *result; - int i, x,y, internal_comp; - STBI_NOTUSED(ri); - - if (!comp) comp = &internal_comp; - - for (i=0; i<92; ++i) - stbi__get8(s); - - x = stbi__get16be(s); - y = stbi__get16be(s); - if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pic header)"); - if (!stbi__mad3sizes_valid(x, y, 4, 0)) return stbi__errpuc("too large", "PIC image too large to decode"); - - stbi__get32be(s); //skip `ratio' - stbi__get16be(s); //skip `fields' - stbi__get16be(s); //skip `pad' - - // intermediate buffer is RGBA - result = (stbi_uc *) stbi__malloc_mad3(x, y, 4, 0); - memset(result, 0xff, x*y*4); - - if (!stbi__pic_load_core(s,x,y,comp, result)) { - STBI_FREE(result); - result=0; - } - *px = x; - *py = y; - if (req_comp == 0) req_comp = *comp; - result=stbi__convert_format(result,4,req_comp,x,y); - - return result; -} - -static int stbi__pic_test(stbi__context *s) -{ - int r = stbi__pic_test_core(s); - stbi__rewind(s); - return r; -} -#endif - -// ************************************************************************************************* -// GIF loader -- public domain by Jean-Marc Lienher -- simplified/shrunk by stb - -#ifndef STBI_NO_GIF -typedef struct -{ - stbi__int16 prefix; - stbi_uc first; - stbi_uc suffix; -} stbi__gif_lzw; - -typedef struct -{ - int w,h; - stbi_uc *out; // output buffer (always 4 components) - stbi_uc *background; // The current "background" as far as a gif is concerned - stbi_uc *history; - int flags, bgindex, ratio, transparent, eflags; - stbi_uc pal[256][4]; - stbi_uc lpal[256][4]; - stbi__gif_lzw codes[8192]; - stbi_uc *color_table; - int parse, step; - int lflags; - int start_x, start_y; - int max_x, max_y; - int cur_x, cur_y; - int line_size; - int delay; -} stbi__gif; - -static int stbi__gif_test_raw(stbi__context *s) -{ - int sz; - if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') return 0; - sz = stbi__get8(s); - if (sz != '9' && sz != '7') return 0; - if (stbi__get8(s) != 'a') return 0; - return 1; -} - -static int stbi__gif_test(stbi__context *s) -{ - int r = stbi__gif_test_raw(s); - stbi__rewind(s); - return r; -} - -static void stbi__gif_parse_colortable(stbi__context *s, stbi_uc pal[256][4], int num_entries, int transp) -{ - int i; - for (i=0; i < num_entries; ++i) { - pal[i][2] = stbi__get8(s); - pal[i][1] = stbi__get8(s); - pal[i][0] = stbi__get8(s); - pal[i][3] = transp == i ? 0 : 255; - } -} - -static int stbi__gif_header(stbi__context *s, stbi__gif *g, int *comp, int is_info) -{ - stbi_uc version; - if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') - return stbi__err("not GIF", "Corrupt GIF"); - - version = stbi__get8(s); - if (version != '7' && version != '9') return stbi__err("not GIF", "Corrupt GIF"); - if (stbi__get8(s) != 'a') return stbi__err("not GIF", "Corrupt GIF"); - - stbi__g_failure_reason = ""; - g->w = stbi__get16le(s); - g->h = stbi__get16le(s); - g->flags = stbi__get8(s); - g->bgindex = stbi__get8(s); - g->ratio = stbi__get8(s); - g->transparent = -1; - - if (comp != 0) *comp = 4; // can't actually tell whether it's 3 or 4 until we parse the comments - - if (is_info) return 1; - - if (g->flags & 0x80) - stbi__gif_parse_colortable(s,g->pal, 2 << (g->flags & 7), -1); - - return 1; -} - -static int stbi__gif_info_raw(stbi__context *s, int *x, int *y, int *comp) -{ - stbi__gif* g = (stbi__gif*) stbi__malloc(sizeof(stbi__gif)); - if (!stbi__gif_header(s, g, comp, 1)) { - STBI_FREE(g); - stbi__rewind( s ); - return 0; - } - if (x) *x = g->w; - if (y) *y = g->h; - STBI_FREE(g); - return 1; -} - -static void stbi__out_gif_code(stbi__gif *g, stbi__uint16 code) -{ - stbi_uc *p, *c; - int idx; - - // recurse to decode the prefixes, since the linked-list is backwards, - // and working backwards through an interleaved image would be nasty - if (g->codes[code].prefix >= 0) - stbi__out_gif_code(g, g->codes[code].prefix); - - if (g->cur_y >= g->max_y) return; - - idx = g->cur_x + g->cur_y; - p = &g->out[idx]; - g->history[idx / 4] = 1; - - c = &g->color_table[g->codes[code].suffix * 4]; - if (c[3] > 128) { // don't render transparent pixels; - p[0] = c[2]; - p[1] = c[1]; - p[2] = c[0]; - p[3] = c[3]; - } - g->cur_x += 4; - - if (g->cur_x >= g->max_x) { - g->cur_x = g->start_x; - g->cur_y += g->step; - - while (g->cur_y >= g->max_y && g->parse > 0) { - g->step = (1 << g->parse) * g->line_size; - g->cur_y = g->start_y + (g->step >> 1); - --g->parse; - } - } -} - -static stbi_uc *stbi__process_gif_raster(stbi__context *s, stbi__gif *g) -{ - stbi_uc lzw_cs; - stbi__int32 len, init_code; - stbi__uint32 first; - stbi__int32 codesize, codemask, avail, oldcode, bits, valid_bits, clear; - stbi__gif_lzw *p; - - lzw_cs = stbi__get8(s); - if (lzw_cs > 12) return NULL; - clear = 1 << lzw_cs; - first = 1; - codesize = lzw_cs + 1; - codemask = (1 << codesize) - 1; - bits = 0; - valid_bits = 0; - for (init_code = 0; init_code < clear; init_code++) { - g->codes[init_code].prefix = -1; - g->codes[init_code].first = (stbi_uc) init_code; - g->codes[init_code].suffix = (stbi_uc) init_code; - } - - // support no starting clear code - avail = clear+2; - oldcode = -1; - - len = 0; - for(;;) { - if (valid_bits < codesize) { - if (len == 0) { - len = stbi__get8(s); // start new block - if (len == 0) - return g->out; - } - --len; - bits |= (stbi__int32) stbi__get8(s) << valid_bits; - valid_bits += 8; - } else { - stbi__int32 code = bits & codemask; - bits >>= codesize; - valid_bits -= codesize; - // @OPTIMIZE: is there some way we can accelerate the non-clear path? - if (code == clear) { // clear code - codesize = lzw_cs + 1; - codemask = (1 << codesize) - 1; - avail = clear + 2; - oldcode = -1; - first = 0; - } else if (code == clear + 1) { // end of stream code - stbi__skip(s, len); - while ((len = stbi__get8(s)) > 0) - stbi__skip(s,len); - return g->out; - } else if (code <= avail) { - if (first) { - return stbi__errpuc("no clear code", "Corrupt GIF"); - } - - if (oldcode >= 0) { - p = &g->codes[avail++]; - if (avail > 8192) { - return stbi__errpuc("too many codes", "Corrupt GIF"); - } - - p->prefix = (stbi__int16) oldcode; - p->first = g->codes[oldcode].first; - p->suffix = (code == avail) ? p->first : g->codes[code].first; - } else if (code == avail) - return stbi__errpuc("illegal code in raster", "Corrupt GIF"); - - stbi__out_gif_code(g, (stbi__uint16) code); - - if ((avail & codemask) == 0 && avail <= 0x0FFF) { - codesize++; - codemask = (1 << codesize) - 1; - } - - oldcode = code; - } else { - return stbi__errpuc("illegal code in raster", "Corrupt GIF"); - } - } - } -} - -// this function is designed to support animated gifs, although stb_image doesn't support it -// two back is the image from two frames ago, used for a very specific disposal format -static stbi_uc *stbi__gif_load_next(stbi__context *s, stbi__gif *g, int *comp, int req_comp, stbi_uc *two_back) -{ - int dispose; - int first_frame; - int pi; - int pcount; - STBI_NOTUSED(req_comp); - - // on first frame, any non-written pixels get the background colour (non-transparent) - first_frame = 0; - if (g->out == 0) { - if (!stbi__gif_header(s, g, comp,0)) return 0; // stbi__g_failure_reason set by stbi__gif_header - if (!stbi__mad3sizes_valid(4, g->w, g->h, 0)) - return stbi__errpuc("too large", "GIF image is too large"); - pcount = g->w * g->h; - g->out = (stbi_uc *) stbi__malloc(4 * pcount); - g->background = (stbi_uc *) stbi__malloc(4 * pcount); - g->history = (stbi_uc *) stbi__malloc(pcount); - if (!g->out || !g->background || !g->history) - return stbi__errpuc("outofmem", "Out of memory"); - - // image is treated as "transparent" at the start - ie, nothing overwrites the current background; - // background colour is only used for pixels that are not rendered first frame, after that "background" - // color refers to the color that was there the previous frame. - memset(g->out, 0x00, 4 * pcount); - memset(g->background, 0x00, 4 * pcount); // state of the background (starts transparent) - memset(g->history, 0x00, pcount); // pixels that were affected previous frame - first_frame = 1; - } else { - // second frame - how do we dispoase of the previous one? - dispose = (g->eflags & 0x1C) >> 2; - pcount = g->w * g->h; - - if ((dispose == 3) && (two_back == 0)) { - dispose = 2; // if I don't have an image to revert back to, default to the old background - } - - if (dispose == 3) { // use previous graphic - for (pi = 0; pi < pcount; ++pi) { - if (g->history[pi]) { - memcpy( &g->out[pi * 4], &two_back[pi * 4], 4 ); - } - } - } else if (dispose == 2) { - // restore what was changed last frame to background before that frame; - for (pi = 0; pi < pcount; ++pi) { - if (g->history[pi]) { - memcpy( &g->out[pi * 4], &g->background[pi * 4], 4 ); - } - } - } else { - // This is a non-disposal case eithe way, so just - // leave the pixels as is, and they will become the new background - // 1: do not dispose - // 0: not specified. - } - - // background is what out is after the undoing of the previou frame; - memcpy( g->background, g->out, 4 * g->w * g->h ); - } - - // clear my history; - memset( g->history, 0x00, g->w * g->h ); // pixels that were affected previous frame - - for (;;) { - int tag = stbi__get8(s); - switch (tag) { - case 0x2C: /* Image Descriptor */ - { - stbi__int32 x, y, w, h; - stbi_uc *o; - - x = stbi__get16le(s); - y = stbi__get16le(s); - w = stbi__get16le(s); - h = stbi__get16le(s); - if (((x + w) > (g->w)) || ((y + h) > (g->h))) - return stbi__errpuc("bad Image Descriptor", "Corrupt GIF"); - - g->line_size = g->w * 4; - g->start_x = x * 4; - g->start_y = y * g->line_size; - g->max_x = g->start_x + w * 4; - g->max_y = g->start_y + h * g->line_size; - g->cur_x = g->start_x; - g->cur_y = g->start_y; - - // if the width of the specified rectangle is 0, that means - // we may not see *any* pixels or the image is malformed; - // to make sure this is caught, move the current y down to - // max_y (which is what out_gif_code checks). - if (w == 0) - g->cur_y = g->max_y; - - g->lflags = stbi__get8(s); - - if (g->lflags & 0x40) { - g->step = 8 * g->line_size; // first interlaced spacing - g->parse = 3; - } else { - g->step = g->line_size; - g->parse = 0; - } - - if (g->lflags & 0x80) { - stbi__gif_parse_colortable(s,g->lpal, 2 << (g->lflags & 7), g->eflags & 0x01 ? g->transparent : -1); - g->color_table = (stbi_uc *) g->lpal; - } else if (g->flags & 0x80) { - g->color_table = (stbi_uc *) g->pal; - } else - return stbi__errpuc("missing color table", "Corrupt GIF"); - - o = stbi__process_gif_raster(s, g); - if (!o) return NULL; - - // if this was the first frame, - pcount = g->w * g->h; - if (first_frame && (g->bgindex > 0)) { - // if first frame, any pixel not drawn to gets the background color - for (pi = 0; pi < pcount; ++pi) { - if (g->history[pi] == 0) { - g->pal[g->bgindex][3] = 255; // just in case it was made transparent, undo that; It will be reset next frame if need be; - memcpy( &g->out[pi * 4], &g->pal[g->bgindex], 4 ); - } - } - } - - return o; - } - - case 0x21: // Comment Extension. - { - int len; - int ext = stbi__get8(s); - if (ext == 0xF9) { // Graphic Control Extension. - len = stbi__get8(s); - if (len == 4) { - g->eflags = stbi__get8(s); - g->delay = 10 * stbi__get16le(s); // delay - 1/100th of a second, saving as 1/1000ths. - - // unset old transparent - if (g->transparent >= 0) { - g->pal[g->transparent][3] = 255; - } - if (g->eflags & 0x01) { - g->transparent = stbi__get8(s); - if (g->transparent >= 0) { - g->pal[g->transparent][3] = 0; - } - } else { - // don't need transparent - stbi__skip(s, 1); - g->transparent = -1; - } - } else { - stbi__skip(s, len); - break; - } - } - while ((len = stbi__get8(s)) != 0) { - stbi__skip(s, len); - } - break; - } - - case 0x3B: // gif stream termination code - return (stbi_uc *) s; // using '1' causes warning on some compilers - - default: - return stbi__errpuc("unknown code", "Corrupt GIF"); - } - } -} - -static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp) -{ - if (stbi__gif_test(s)) { - int layers = 0; - stbi_uc *u = 0; - stbi_uc *out = 0; - stbi_uc *two_back = 0; - stbi__gif g; - int stride; - memset(&g, 0, sizeof(g)); - if (delays) { - *delays = 0; - } - - do { - u = stbi__gif_load_next(s, &g, comp, req_comp, two_back); - if (u == (stbi_uc *) s) u = 0; // end of animated gif marker - - if (u) { - *x = g.w; - *y = g.h; - ++layers; - stride = g.w * g.h * 4; - - if (out) { - void *tmp = (stbi_uc*) STBI_REALLOC( out, layers * stride ); - if (NULL == tmp) { - STBI_FREE(g.out); - STBI_FREE(g.history); - STBI_FREE(g.background); - return stbi__errpuc("outofmem", "Out of memory"); - } - else - out = (stbi_uc*) tmp; - if (delays) { - *delays = (int*) STBI_REALLOC( *delays, sizeof(int) * layers ); - } - } else { - out = (stbi_uc*)stbi__malloc( layers * stride ); - if (delays) { - *delays = (int*) stbi__malloc( layers * sizeof(int) ); - } - } - memcpy( out + ((layers - 1) * stride), u, stride ); - if (layers >= 2) { - two_back = out - 2 * stride; - } - - if (delays) { - (*delays)[layers - 1U] = g.delay; - } - } - } while (u != 0); - - // free temp buffer; - STBI_FREE(g.out); - STBI_FREE(g.history); - STBI_FREE(g.background); - - // do the final conversion after loading everything; - if (req_comp && req_comp != 4) - out = stbi__convert_format(out, 4, req_comp, layers * g.w, g.h); - - *z = layers; - return out; - } else { - return stbi__errpuc("not GIF", "Image was not as a gif type."); - } -} - -static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) -{ - stbi_uc *u = 0; - stbi__gif g; - memset(&g, 0, sizeof(g)); - STBI_NOTUSED(ri); - - u = stbi__gif_load_next(s, &g, comp, req_comp, 0); - if (u == (stbi_uc *) s) u = 0; // end of animated gif marker - if (u) { - *x = g.w; - *y = g.h; - - // moved conversion to after successful load so that the same - // can be done for multiple frames. - if (req_comp && req_comp != 4) - u = stbi__convert_format(u, 4, req_comp, g.w, g.h); - } else if (g.out) { - // if there was an error and we allocated an image buffer, free it! - STBI_FREE(g.out); - } - - // free buffers needed for multiple frame loading; - STBI_FREE(g.history); - STBI_FREE(g.background); - - return u; -} - -static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp) -{ - return stbi__gif_info_raw(s,x,y,comp); -} -#endif - -// ************************************************************************************************* -// Radiance RGBE HDR loader -// originally by Nicolas Schulz -#ifndef STBI_NO_HDR -static int stbi__hdr_test_core(stbi__context *s, const char *signature) -{ - int i; - for (i=0; signature[i]; ++i) - if (stbi__get8(s) != signature[i]) - return 0; - stbi__rewind(s); - return 1; -} - -static int stbi__hdr_test(stbi__context* s) -{ - int r = stbi__hdr_test_core(s, "#?RADIANCE\n"); - stbi__rewind(s); - if(!r) { - r = stbi__hdr_test_core(s, "#?RGBE\n"); - stbi__rewind(s); - } - return r; -} - -#define STBI__HDR_BUFLEN 1024 -static char *stbi__hdr_gettoken(stbi__context *z, char *buffer) -{ - int len=0; - char c = '\0'; - - c = (char) stbi__get8(z); - - while (!stbi__at_eof(z) && c != '\n') { - buffer[len++] = c; - if (len == STBI__HDR_BUFLEN-1) { - // flush to end of line - while (!stbi__at_eof(z) && stbi__get8(z) != '\n') - ; - break; - } - c = (char) stbi__get8(z); - } - - buffer[len] = 0; - return buffer; -} - -static void stbi__hdr_convert(float *output, stbi_uc *input, int req_comp) -{ - if ( input[3] != 0 ) { - float f1; - // Exponent - f1 = (float) ldexp(1.0f, input[3] - (int)(128 + 8)); - if (req_comp <= 2) - output[0] = (input[0] + input[1] + input[2]) * f1 / 3; - else { - output[0] = input[0] * f1; - output[1] = input[1] * f1; - output[2] = input[2] * f1; - } - if (req_comp == 2) output[1] = 1; - if (req_comp == 4) output[3] = 1; - } else { - switch (req_comp) { - case 4: output[3] = 1; /* fallthrough */ - case 3: output[0] = output[1] = output[2] = 0; - break; - case 2: output[1] = 1; /* fallthrough */ - case 1: output[0] = 0; - break; - } - } -} - -static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) -{ - char buffer[STBI__HDR_BUFLEN]; - char *token; - int valid = 0; - int width, height; - stbi_uc *scanline; - float *hdr_data; - int len; - unsigned char count, value; - int i, j, k, c1,c2, z; - const char *headerToken; - STBI_NOTUSED(ri); - - // Check identifier - headerToken = stbi__hdr_gettoken(s,buffer); - if (strcmp(headerToken, "#?RADIANCE") != 0 && strcmp(headerToken, "#?RGBE") != 0) - return stbi__errpf("not HDR", "Corrupt HDR image"); - - // Parse header - for(;;) { - token = stbi__hdr_gettoken(s,buffer); - if (token[0] == 0) break; - if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; - } - - if (!valid) return stbi__errpf("unsupported format", "Unsupported HDR format"); - - // Parse width and height - // can't use sscanf() if we're not using stdio! - token = stbi__hdr_gettoken(s,buffer); - if (strncmp(token, "-Y ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); - token += 3; - height = (int) strtol(token, &token, 10); - while (*token == ' ') ++token; - if (strncmp(token, "+X ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); - token += 3; - width = (int) strtol(token, NULL, 10); - - *x = width; - *y = height; - - if (comp) *comp = 3; - if (req_comp == 0) req_comp = 3; - - if (!stbi__mad4sizes_valid(width, height, req_comp, sizeof(float), 0)) - return stbi__errpf("too large", "HDR image is too large"); - - // Read data - hdr_data = (float *) stbi__malloc_mad4(width, height, req_comp, sizeof(float), 0); - if (!hdr_data) - return stbi__errpf("outofmem", "Out of memory"); - - // Load image data - // image data is stored as some number of sca - if ( width < 8 || width >= 32768) { - // Read flat data - for (j=0; j < height; ++j) { - for (i=0; i < width; ++i) { - stbi_uc rgbe[4]; - main_decode_loop: - stbi__getn(s, rgbe, 4); - stbi__hdr_convert(hdr_data + j * width * req_comp + i * req_comp, rgbe, req_comp); - } - } - } else { - // Read RLE-encoded data - scanline = NULL; - - for (j = 0; j < height; ++j) { - c1 = stbi__get8(s); - c2 = stbi__get8(s); - len = stbi__get8(s); - if (c1 != 2 || c2 != 2 || (len & 0x80)) { - // not run-length encoded, so we have to actually use THIS data as a decoded - // pixel (note this can't be a valid pixel--one of RGB must be >= 128) - stbi_uc rgbe[4]; - rgbe[0] = (stbi_uc) c1; - rgbe[1] = (stbi_uc) c2; - rgbe[2] = (stbi_uc) len; - rgbe[3] = (stbi_uc) stbi__get8(s); - stbi__hdr_convert(hdr_data, rgbe, req_comp); - i = 1; - j = 0; - STBI_FREE(scanline); - goto main_decode_loop; // yes, this makes no sense - } - len <<= 8; - len |= stbi__get8(s); - if (len != width) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("invalid decoded scanline length", "corrupt HDR"); } - if (scanline == NULL) { - scanline = (stbi_uc *) stbi__malloc_mad2(width, 4, 0); - if (!scanline) { - STBI_FREE(hdr_data); - return stbi__errpf("outofmem", "Out of memory"); - } - } - - for (k = 0; k < 4; ++k) { - int nleft; - i = 0; - while ((nleft = width - i) > 0) { - count = stbi__get8(s); - if (count > 128) { - // Run - value = stbi__get8(s); - count -= 128; - if (count > nleft) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); } - for (z = 0; z < count; ++z) - scanline[i++ * 4 + k] = value; - } else { - // Dump - if (count > nleft) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); } - for (z = 0; z < count; ++z) - scanline[i++ * 4 + k] = stbi__get8(s); - } - } - } - for (i=0; i < width; ++i) - stbi__hdr_convert(hdr_data+(j*width + i)*req_comp, scanline + i*4, req_comp); - } - if (scanline) - STBI_FREE(scanline); - } - - return hdr_data; -} - -static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp) -{ - char buffer[STBI__HDR_BUFLEN]; - char *token; - int valid = 0; - int dummy; - - if (!x) x = &dummy; - if (!y) y = &dummy; - if (!comp) comp = &dummy; - - if (stbi__hdr_test(s) == 0) { - stbi__rewind( s ); - return 0; - } - - for(;;) { - token = stbi__hdr_gettoken(s,buffer); - if (token[0] == 0) break; - if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; - } - - if (!valid) { - stbi__rewind( s ); - return 0; - } - token = stbi__hdr_gettoken(s,buffer); - if (strncmp(token, "-Y ", 3)) { - stbi__rewind( s ); - return 0; - } - token += 3; - *y = (int) strtol(token, &token, 10); - while (*token == ' ') ++token; - if (strncmp(token, "+X ", 3)) { - stbi__rewind( s ); - return 0; - } - token += 3; - *x = (int) strtol(token, NULL, 10); - *comp = 3; - return 1; -} -#endif // STBI_NO_HDR - -#ifndef STBI_NO_BMP -static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp) -{ - void *p; - stbi__bmp_data info; - - info.all_a = 255; - p = stbi__bmp_parse_header(s, &info); - stbi__rewind( s ); - if (p == NULL) - return 0; - if (x) *x = s->img_x; - if (y) *y = s->img_y; - if (comp) { - if (info.bpp == 24 && info.ma == 0xff000000) - *comp = 3; - else - *comp = info.ma ? 4 : 3; - } - return 1; -} -#endif - -#ifndef STBI_NO_PSD -static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp) -{ - int channelCount, dummy, depth; - if (!x) x = &dummy; - if (!y) y = &dummy; - if (!comp) comp = &dummy; - if (stbi__get32be(s) != 0x38425053) { - stbi__rewind( s ); - return 0; - } - if (stbi__get16be(s) != 1) { - stbi__rewind( s ); - return 0; - } - stbi__skip(s, 6); - channelCount = stbi__get16be(s); - if (channelCount < 0 || channelCount > 16) { - stbi__rewind( s ); - return 0; - } - *y = stbi__get32be(s); - *x = stbi__get32be(s); - depth = stbi__get16be(s); - if (depth != 8 && depth != 16) { - stbi__rewind( s ); - return 0; - } - if (stbi__get16be(s) != 3) { - stbi__rewind( s ); - return 0; - } - *comp = 4; - return 1; -} - -static int stbi__psd_is16(stbi__context *s) -{ - int channelCount, depth; - if (stbi__get32be(s) != 0x38425053) { - stbi__rewind( s ); - return 0; - } - if (stbi__get16be(s) != 1) { - stbi__rewind( s ); - return 0; - } - stbi__skip(s, 6); - channelCount = stbi__get16be(s); - if (channelCount < 0 || channelCount > 16) { - stbi__rewind( s ); - return 0; - } - (void) stbi__get32be(s); - (void) stbi__get32be(s); - depth = stbi__get16be(s); - if (depth != 16) { - stbi__rewind( s ); - return 0; - } - return 1; -} -#endif - -#ifndef STBI_NO_PIC -static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp) -{ - int act_comp=0,num_packets=0,chained,dummy; - stbi__pic_packet packets[10]; - - if (!x) x = &dummy; - if (!y) y = &dummy; - if (!comp) comp = &dummy; - - if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) { - stbi__rewind(s); - return 0; - } - - stbi__skip(s, 88); - - *x = stbi__get16be(s); - *y = stbi__get16be(s); - if (stbi__at_eof(s)) { - stbi__rewind( s); - return 0; - } - if ( (*x) != 0 && (1 << 28) / (*x) < (*y)) { - stbi__rewind( s ); - return 0; - } - - stbi__skip(s, 8); - - do { - stbi__pic_packet *packet; - - if (num_packets==sizeof(packets)/sizeof(packets[0])) - return 0; - - packet = &packets[num_packets++]; - chained = stbi__get8(s); - packet->size = stbi__get8(s); - packet->type = stbi__get8(s); - packet->channel = stbi__get8(s); - act_comp |= packet->channel; - - if (stbi__at_eof(s)) { - stbi__rewind( s ); - return 0; - } - if (packet->size != 8) { - stbi__rewind( s ); - return 0; - } - } while (chained); - - *comp = (act_comp & 0x10 ? 4 : 3); - - return 1; -} -#endif - -// ************************************************************************************************* -// Portable Gray Map and Portable Pixel Map loader -// by Ken Miller -// -// PGM: http://netpbm.sourceforge.net/doc/pgm.html -// PPM: http://netpbm.sourceforge.net/doc/ppm.html -// -// Known limitations: -// Does not support comments in the header section -// Does not support ASCII image data (formats P2 and P3) -// Does not support 16-bit-per-channel - -#ifndef STBI_NO_PNM - -static int stbi__pnm_test(stbi__context *s) -{ - char p, t; - p = (char) stbi__get8(s); - t = (char) stbi__get8(s); - if (p != 'P' || (t != '5' && t != '6')) { - stbi__rewind( s ); - return 0; - } - return 1; -} - -static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) -{ - stbi_uc *out; - STBI_NOTUSED(ri); - - if (!stbi__pnm_info(s, (int *)&s->img_x, (int *)&s->img_y, (int *)&s->img_n)) - return 0; - - *x = s->img_x; - *y = s->img_y; - if (comp) *comp = s->img_n; - - if (!stbi__mad3sizes_valid(s->img_n, s->img_x, s->img_y, 0)) - return stbi__errpuc("too large", "PNM too large"); - - out = (stbi_uc *) stbi__malloc_mad3(s->img_n, s->img_x, s->img_y, 0); - if (!out) return stbi__errpuc("outofmem", "Out of memory"); - stbi__getn(s, out, s->img_n * s->img_x * s->img_y); - - if (req_comp && req_comp != s->img_n) { - out = stbi__convert_format(out, s->img_n, req_comp, s->img_x, s->img_y); - if (out == NULL) return out; // stbi__convert_format frees input on failure - } - return out; -} - -static int stbi__pnm_isspace(char c) -{ - return c == ' ' || c == '\t' || c == '\n' || c == '\v' || c == '\f' || c == '\r'; -} - -static void stbi__pnm_skip_whitespace(stbi__context *s, char *c) -{ - for (;;) { - while (!stbi__at_eof(s) && stbi__pnm_isspace(*c)) - *c = (char) stbi__get8(s); - - if (stbi__at_eof(s) || *c != '#') - break; - - while (!stbi__at_eof(s) && *c != '\n' && *c != '\r' ) - *c = (char) stbi__get8(s); - } -} - -static int stbi__pnm_isdigit(char c) -{ - return c >= '0' && c <= '9'; -} - -static int stbi__pnm_getinteger(stbi__context *s, char *c) -{ - int value = 0; - - while (!stbi__at_eof(s) && stbi__pnm_isdigit(*c)) { - value = value*10 + (*c - '0'); - *c = (char) stbi__get8(s); - } - - return value; -} - -static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp) -{ - int maxv, dummy; - char c, p, t; - - if (!x) x = &dummy; - if (!y) y = &dummy; - if (!comp) comp = &dummy; - - stbi__rewind(s); - - // Get identifier - p = (char) stbi__get8(s); - t = (char) stbi__get8(s); - if (p != 'P' || (t != '5' && t != '6')) { - stbi__rewind(s); - return 0; - } - - *comp = (t == '6') ? 3 : 1; // '5' is 1-component .pgm; '6' is 3-component .ppm - - c = (char) stbi__get8(s); - stbi__pnm_skip_whitespace(s, &c); - - *x = stbi__pnm_getinteger(s, &c); // read width - stbi__pnm_skip_whitespace(s, &c); - - *y = stbi__pnm_getinteger(s, &c); // read height - stbi__pnm_skip_whitespace(s, &c); - - maxv = stbi__pnm_getinteger(s, &c); // read max value - - if (maxv > 255) - return stbi__err("max value > 255", "PPM image not 8-bit"); - else - return 1; -} -#endif - -static int stbi__info_main(stbi__context *s, int *x, int *y, int *comp) -{ - #ifndef STBI_NO_JPEG - if (stbi__jpeg_info(s, x, y, comp)) return 1; - #endif - - #ifndef STBI_NO_PNG - if (stbi__png_info(s, x, y, comp)) return 1; - #endif - - #ifndef STBI_NO_GIF - if (stbi__gif_info(s, x, y, comp)) return 1; - #endif - - #ifndef STBI_NO_BMP - if (stbi__bmp_info(s, x, y, comp)) return 1; - #endif - - #ifndef STBI_NO_PSD - if (stbi__psd_info(s, x, y, comp)) return 1; - #endif - - #ifndef STBI_NO_PIC - if (stbi__pic_info(s, x, y, comp)) return 1; - #endif - - #ifndef STBI_NO_PNM - if (stbi__pnm_info(s, x, y, comp)) return 1; - #endif - - #ifndef STBI_NO_HDR - if (stbi__hdr_info(s, x, y, comp)) return 1; - #endif - - // test tga last because it's a crappy test! - #ifndef STBI_NO_TGA - if (stbi__tga_info(s, x, y, comp)) - return 1; - #endif - return stbi__err("unknown image type", "Image not of any known type, or corrupt"); -} - -static int stbi__is_16_main(stbi__context *s) -{ - #ifndef STBI_NO_PNG - if (stbi__png_is16(s)) return 1; - #endif - - #ifndef STBI_NO_PSD - if (stbi__psd_is16(s)) return 1; - #endif - - return 0; -} - -#ifndef STBI_NO_STDIO -STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp) -{ - FILE *f = stbi__fopen(filename, "rb"); - int result; - if (!f) return stbi__err("can't fopen", "Unable to open file"); - result = stbi_info_from_file(f, x, y, comp); - fclose(f); - return result; -} - -STBIDEF int stbi_info_from_file(FILE *f, int *x, int *y, int *comp) -{ - int r; - stbi__context s; - long pos = ftell(f); - stbi__start_file(&s, f); - r = stbi__info_main(&s,x,y,comp); - fseek(f,pos,SEEK_SET); - return r; -} - -STBIDEF int stbi_is_16_bit(char const *filename) -{ - FILE *f = stbi__fopen(filename, "rb"); - int result; - if (!f) return stbi__err("can't fopen", "Unable to open file"); - result = stbi_is_16_bit_from_file(f); - fclose(f); - return result; -} - -STBIDEF int stbi_is_16_bit_from_file(FILE *f) -{ - int r; - stbi__context s; - long pos = ftell(f); - stbi__start_file(&s, f); - r = stbi__is_16_main(&s); - fseek(f,pos,SEEK_SET); - return r; -} -#endif // !STBI_NO_STDIO - -STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp) -{ - stbi__context s; - stbi__start_mem(&s,buffer,len); - return stbi__info_main(&s,x,y,comp); -} - -STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp) -{ - stbi__context s; - stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user); - return stbi__info_main(&s,x,y,comp); -} - -STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len) -{ - stbi__context s; - stbi__start_mem(&s,buffer,len); - return stbi__is_16_main(&s); -} - -STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user) -{ - stbi__context s; - stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user); - return stbi__is_16_main(&s); -} - -#endif // STB_IMAGE_IMPLEMENTATION - -/* - revision history: - 2.20 (2019-02-07) support utf8 filenames in Windows; fix warnings and platform ifdefs - 2.19 (2018-02-11) fix warning - 2.18 (2018-01-30) fix warnings - 2.17 (2018-01-29) change sbti__shiftsigned to avoid clang -O2 bug - 1-bit BMP - *_is_16_bit api - avoid warnings - 2.16 (2017-07-23) all functions have 16-bit variants; - STBI_NO_STDIO works again; - compilation fixes; - fix rounding in unpremultiply; - optimize vertical flip; - disable raw_len validation; - documentation fixes - 2.15 (2017-03-18) fix png-1,2,4 bug; now all Imagenet JPGs decode; - warning fixes; disable run-time SSE detection on gcc; - uniform handling of optional "return" values; - thread-safe initialization of zlib tables - 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs - 2.13 (2016-11-29) add 16-bit API, only supported for PNG right now - 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes - 2.11 (2016-04-02) allocate large structures on the stack - remove white matting for transparent PSD - fix reported channel count for PNG & BMP - re-enable SSE2 in non-gcc 64-bit - support RGB-formatted JPEG - read 16-bit PNGs (only as 8-bit) - 2.10 (2016-01-22) avoid warning introduced in 2.09 by STBI_REALLOC_SIZED - 2.09 (2016-01-16) allow comments in PNM files - 16-bit-per-pixel TGA (not bit-per-component) - info() for TGA could break due to .hdr handling - info() for BMP to shares code instead of sloppy parse - can use STBI_REALLOC_SIZED if allocator doesn't support realloc - code cleanup - 2.08 (2015-09-13) fix to 2.07 cleanup, reading RGB PSD as RGBA - 2.07 (2015-09-13) fix compiler warnings - partial animated GIF support - limited 16-bpc PSD support - #ifdef unused functions - bug with < 92 byte PIC,PNM,HDR,TGA - 2.06 (2015-04-19) fix bug where PSD returns wrong '*comp' value - 2.05 (2015-04-19) fix bug in progressive JPEG handling, fix warning - 2.04 (2015-04-15) try to re-enable SIMD on MinGW 64-bit - 2.03 (2015-04-12) extra corruption checking (mmozeiko) - stbi_set_flip_vertically_on_load (nguillemot) - fix NEON support; fix mingw support - 2.02 (2015-01-19) fix incorrect assert, fix warning - 2.01 (2015-01-17) fix various warnings; suppress SIMD on gcc 32-bit without -msse2 - 2.00b (2014-12-25) fix STBI_MALLOC in progressive JPEG - 2.00 (2014-12-25) optimize JPG, including x86 SSE2 & NEON SIMD (ryg) - progressive JPEG (stb) - PGM/PPM support (Ken Miller) - STBI_MALLOC,STBI_REALLOC,STBI_FREE - GIF bugfix -- seemingly never worked - STBI_NO_*, STBI_ONLY_* - 1.48 (2014-12-14) fix incorrectly-named assert() - 1.47 (2014-12-14) 1/2/4-bit PNG support, both direct and paletted (Omar Cornut & stb) - optimize PNG (ryg) - fix bug in interlaced PNG with user-specified channel count (stb) - 1.46 (2014-08-26) - fix broken tRNS chunk (colorkey-style transparency) in non-paletted PNG - 1.45 (2014-08-16) - fix MSVC-ARM internal compiler error by wrapping malloc - 1.44 (2014-08-07) - various warning fixes from Ronny Chevalier - 1.43 (2014-07-15) - fix MSVC-only compiler problem in code changed in 1.42 - 1.42 (2014-07-09) - don't define _CRT_SECURE_NO_WARNINGS (affects user code) - fixes to stbi__cleanup_jpeg path - added STBI_ASSERT to avoid requiring assert.h - 1.41 (2014-06-25) - fix search&replace from 1.36 that messed up comments/error messages - 1.40 (2014-06-22) - fix gcc struct-initialization warning - 1.39 (2014-06-15) - fix to TGA optimization when req_comp != number of components in TGA; - fix to GIF loading because BMP wasn't rewinding (whoops, no GIFs in my test suite) - add support for BMP version 5 (more ignored fields) - 1.38 (2014-06-06) - suppress MSVC warnings on integer casts truncating values - fix accidental rename of 'skip' field of I/O - 1.37 (2014-06-04) - remove duplicate typedef - 1.36 (2014-06-03) - convert to header file single-file library - if de-iphone isn't set, load iphone images color-swapped instead of returning NULL - 1.35 (2014-05-27) - various warnings - fix broken STBI_SIMD path - fix bug where stbi_load_from_file no longer left file pointer in correct place - fix broken non-easy path for 32-bit BMP (possibly never used) - TGA optimization by Arseny Kapoulkine - 1.34 (unknown) - use STBI_NOTUSED in stbi__resample_row_generic(), fix one more leak in tga failure case - 1.33 (2011-07-14) - make stbi_is_hdr work in STBI_NO_HDR (as specified), minor compiler-friendly improvements - 1.32 (2011-07-13) - support for "info" function for all supported filetypes (SpartanJ) - 1.31 (2011-06-20) - a few more leak fixes, bug in PNG handling (SpartanJ) - 1.30 (2011-06-11) - added ability to load files via callbacks to accomidate custom input streams (Ben Wenger) - removed deprecated format-specific test/load functions - removed support for installable file formats (stbi_loader) -- would have been broken for IO callbacks anyway - error cases in bmp and tga give messages and don't leak (Raymond Barbiero, grisha) - fix inefficiency in decoding 32-bit BMP (David Woo) - 1.29 (2010-08-16) - various warning fixes from Aurelien Pocheville - 1.28 (2010-08-01) - fix bug in GIF palette transparency (SpartanJ) - 1.27 (2010-08-01) - cast-to-stbi_uc to fix warnings - 1.26 (2010-07-24) - fix bug in file buffering for PNG reported by SpartanJ - 1.25 (2010-07-17) - refix trans_data warning (Won Chun) - 1.24 (2010-07-12) - perf improvements reading from files on platforms with lock-heavy fgetc() - minor perf improvements for jpeg - deprecated type-specific functions so we'll get feedback if they're needed - attempt to fix trans_data warning (Won Chun) - 1.23 fixed bug in iPhone support - 1.22 (2010-07-10) - removed image *writing* support - stbi_info support from Jetro Lauha - GIF support from Jean-Marc Lienher - iPhone PNG-extensions from James Brown - warning-fixes from Nicolas Schulz and Janez Zemva (i.stbi__err. Janez (U+017D)emva) - 1.21 fix use of 'stbi_uc' in header (reported by jon blow) - 1.20 added support for Softimage PIC, by Tom Seddon - 1.19 bug in interlaced PNG corruption check (found by ryg) - 1.18 (2008-08-02) - fix a threading bug (local mutable static) - 1.17 support interlaced PNG - 1.16 major bugfix - stbi__convert_format converted one too many pixels - 1.15 initialize some fields for thread safety - 1.14 fix threadsafe conversion bug - header-file-only version (#define STBI_HEADER_FILE_ONLY before including) - 1.13 threadsafe - 1.12 const qualifiers in the API - 1.11 Support installable IDCT, colorspace conversion routines - 1.10 Fixes for 64-bit (don't use "unsigned long") - optimized upsampling by Fabian "ryg" Giesen - 1.09 Fix format-conversion for PSD code (bad global variables!) - 1.08 Thatcher Ulrich's PSD code integrated by Nicolas Schulz - 1.07 attempt to fix C++ warning/errors again - 1.06 attempt to fix C++ warning/errors again - 1.05 fix TGA loading to return correct *comp and use good luminance calc - 1.04 default float alpha is 1, not 255; use 'void *' for stbi_image_free - 1.03 bugfixes to STBI_NO_STDIO, STBI_NO_HDR - 1.02 support for (subset of) HDR files, float interface for preferred access to them - 1.01 fix bug: possible bug in handling right-side up bmps... not sure - fix bug: the stbi__bmp_load() and stbi__tga_load() functions didn't work at all - 1.00 interface to zlib that skips zlib header - 0.99 correct handling of alpha in palette - 0.98 TGA loader by lonesock; dynamically add loaders (untested) - 0.97 jpeg errors on too large a file; also catch another malloc failure - 0.96 fix detection of invalid v value - particleman@mollyrocket forum - 0.95 during header scan, seek to markers in case of padding - 0.94 STBI_NO_STDIO to disable stdio usage; rename all #defines the same - 0.93 handle jpegtran output; verbose errors - 0.92 read 4,8,16,24,32-bit BMP files of several formats - 0.91 output 24-bit Windows 3.0 BMP files - 0.90 fix a few more warnings; bump version number to approach 1.0 - 0.61 bugfixes due to Marc LeBlanc, Christopher Lloyd - 0.60 fix compiling as c++ - 0.59 fix warnings: merge Dave Moore's -Wall fixes - 0.58 fix bug: zlib uncompressed mode len/nlen was wrong endian - 0.57 fix bug: jpg last huffman symbol before marker was >9 bits but less than 16 available - 0.56 fix bug: zlib uncompressed mode len vs. nlen - 0.55 fix bug: restart_interval not initialized to 0 - 0.54 allow NULL for 'int *comp' - 0.53 fix bug in png 3->4; speedup png decoding - 0.52 png handles req_comp=3,4 directly; minor cleanup; jpeg comments - 0.51 obey req_comp requests, 1-component jpegs return as 1-component, - on 'test' only check type, not whether we support this variant - 0.50 (2006-11-19) - first released version -*/ - - -/* ------------------------------------------------------------------------------- -This software is available under 2 licenses -- choose whichever you prefer. ------------------------------------------------------------------------------- -ALTERNATIVE A - MIT License -Copyright (c) 2017 Sean Barrett -Permission is hereby granted, free of charge, to any person obtaining a copy of -this software and associated documentation files (the "Software"), to deal in -the Software without restriction, including without limitation the rights to -use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies -of the Software, and to permit persons to whom the Software is furnished to do -so, subject to the following conditions: -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. ------------------------------------------------------------------------------- -ALTERNATIVE B - Public Domain (www.unlicense.org) -This is free and unencumbered software released into the public domain. -Anyone is free to copy, modify, publish, use, compile, sell, or distribute this -software, either in source code form or as a compiled binary, for any purpose, -commercial or non-commercial, and by any means. -In jurisdictions that recognize copyright laws, the author or authors of this -software dedicate any and all copyright interest in the software to the public -domain. We make this dedication for the benefit of the public at large and to -the detriment of our heirs and successors. We intend this dedication to be an -overt act of relinquishment in perpetuity of all present and future rights to -this software under copyright law. -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN -ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION -WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ------------------------------------------------------------------------------- -*/ diff --git a/src/test/minunit.h b/src/test/minunit.h index ed5e57d..1a418c0 100644 --- a/src/test/minunit.h +++ b/src/test/minunit.h @@ -4,6 +4,8 @@ #include <stdio.h> #include <string.h> +#define UNIT_TEST + #define STR_IMPL(x) #x #define STR(x) STR_IMPL(x) diff --git a/src/test/mock/mock_GLFW.c b/src/test/mock/mock_GLFW.c new file mode 100644 index 0000000..f1942fd --- /dev/null +++ b/src/test/mock/mock_GLFW.c @@ -0,0 +1,39 @@ +#include "minunit.h" +#include "test/mock_queue.h" +#include "mock_GLFW.h" + +void glfwGetVersion(int *major, int *minor, int *rev) +{ + *major = mock_front(int); + mock_pop(); + *minor = mock_front(int); + mock_pop(); + *rev = mock_front(int); + mock_pop(); +} + + +int glfwInit() +{ + int result = mock_front(int); + mock_pop(); + return result; +} + + +void glfwTerminate() +{ + mock_queue(bool, true); +} + + +int glfwGetError(const char **description) +{ + int error_code = mock_front(int); + mock_pop(); + if (description != NULL) { + *description = mock_front(const char *); + mock_pop(); + } + return error_code; +} diff --git a/src/test/mock/mock_GLFW.h b/src/test/mock/mock_GLFW.h new file mode 100644 index 0000000..d8689ab --- /dev/null +++ b/src/test/mock/mock_GLFW.h @@ -0,0 +1,9 @@ +#ifndef MOCK_GLFW_H +#define MOCK_GLFW_H + +void glfwGetVersion(int *major, int *minor, int *rev); +int glfwInit(); +void glfwTerminate(); +int glfwGetError(const char **description); + +#endif diff --git a/src/test/mock_queue_tests.c b/src/test/mock_queue.test.c index 92d7cdf..92d7cdf 100644 --- a/src/test/mock_queue_tests.c +++ b/src/test/mock_queue.test.c diff --git a/src/test/suites.h b/src/test/suites.h index 893f2b1..85b04d5 100644 --- a/src/test/suites.h +++ b/src/test/suites.h @@ -5,9 +5,11 @@ void mock_queue_tests(); void honey_logging_tests(); +void honey_gl_tests(); #define RUN_TESTS \ mu_run_suite(honey_logging_tests); \ - mu_run_suite(mock_queue_tests); + mu_run_suite(mock_queue_tests); \ + mu_run_suite(honey_gl_tests); #endif diff --git a/src/texture.c b/src/texture.c deleted file mode 100644 index 4dbc8d1..0000000 --- a/src/texture.c +++ /dev/null @@ -1,458 +0,0 @@ -#include "texture.h" - -int honey_texture_mt_ref = LUA_NOREF; - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Texture parameter setup function declarations - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -static void setup_default_texture_params(honey_texture_params* params); -static void configure_params(lua_State* L, honey_texture_params* params); - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Texture creation & destruction functions - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -static void setup_texture(lua_State* L, honey_texture** tex, bool use_params) -{ - honey_texture_params params; - setup_default_texture_params(¶ms); - if (use_params) - configure_params(L, ¶ms); - - honey_texture *texture = lua_newuserdata(L, sizeof(honey_texture)); - texture->params = params; - *tex = texture; - - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_texture_mt_ref); - lua_setmetatable(L, -2); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_lua_texture_new(lua_State* L) -{ - honey_texture* texture; - int choice = honey_lua_parse_arguments(L, 2, 0, 1, HONEY_TABLE, NULL); - setup_texture(L, &texture, choice == 1); - - honey_texture_generate(texture, NULL); - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static int honey_lua_texture_load(lua_State* L) -{ - honey_texture* texture; - char* texture_path; - int choice = honey_lua_parse_arguments - (L, 2, - 1, HONEY_STRING, &texture_path, - 2, HONEY_STRING, &texture_path, HONEY_TABLE, NULL); - setup_texture(L, &texture, choice == 1); - - enum honey_texture_result result = honey_texture_load(texture, texture_path); - if (result != TEXTURE_OK) - honey_lua_throw_error(L, "failed to load '%s'", - texture_path); - - return 1; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static int honey_lua_texture_destroy(lua_State* L) -{ - honey_texture* texture; - honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &texture); - glDeleteTextures(1, &(texture->id)); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static int honey_lua_texture_use(lua_State* L) -{ - honey_texture* texture; - int texture_unit; - honey_lua_parse_arguments(L, 1, 2, - HONEY_USERDATA, &texture, - HONEY_INTEGER, &texture_unit); - honey_texture_use(*texture, texture_unit); - return 0; -} - -static int honey_lua_framebuffer_new(lua_State* L) -{ - honey_texture* draw, *depth; - int width, height; - honey_lua_parse_arguments(L, 1, 4, - HONEY_ANY, NULL, - HONEY_ANY, NULL, - HONEY_INTEGER, &width, - HONEY_INTEGER, &height); - - if (lua_isuserdata(L, 1)) - draw = lua_touserdata(L, 1); - else - draw = NULL; - - if (lua_isuserdata(L, 2)) - depth = lua_touserdata(L, 2); - else - depth = NULL; - - unsigned int framebuffer; - honey_texture_framebuffer_object_new(&framebuffer, - draw, depth, - width, height); - lua_pushinteger(L, framebuffer); - return 1; -} - -void honey_setup_texture(lua_State* L) -{ - honey_lua_create_table - (L, 2, - HONEY_TABLE, "__index", 1, - HONEY_FUNCTION, "use", honey_lua_texture_use, - - HONEY_FUNCTION, "__gc", honey_lua_texture_destroy); - honey_texture_mt_ref = luaL_ref(L, LUA_REGISTRYINDEX); - - honey_lua_create_table - (L, 1, - HONEY_FUNCTION, "load", honey_lua_texture_load); - - honey_lua_create_table - (L, 1, - HONEY_FUNCTION, "__call", honey_lua_texture_new); - lua_setmetatable(L, -2); - - lua_setfield(L, -2, "texture"); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Non-lua texture functions - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -void honey_texture_generate(honey_texture* texture, - void* data) -{ - honey_texture_params params = texture->params; - glGenTextures(1, &(texture->id)); - - honey_texture_configure(texture); - - int type; - switch(params.type) { - case HONEY_TEXTURE_TYPE_GREY: - case HONEY_TEXTURE_TYPE_RGB: - case HONEY_TEXTURE_TYPE_RGBA: - type = GL_UNSIGNED_BYTE; - break; - - case HONEY_TEXTURE_TYPE_DEPTH: - type = GL_FLOAT; - break; - - default: - // should never happen - break; - } - - glTexImage2D(GL_TEXTURE_2D, 0, - params.type, - params.width, params.height, 0, - params.type, - type, data); - - honey_texture_update_mipmaps(texture); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -void honey_texture_configure(honey_texture* texture) -{ - honey_texture_params params = texture->params; - glBindTexture(GL_TEXTURE_2D, texture->id); - - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, params.min_filter); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, params.mag_filter); - - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, params.wrap_s); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, params.wrap_t); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, params.wrap_r); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -void honey_texture_update_mipmaps(honey_texture* texture) -{ - if (texture->params.mipmaps == false) - return; - - glBindTexture(GL_TEXTURE_2D, texture->id); - glGenerateMipmap(GL_TEXTURE_2D); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -enum honey_texture_result honey_texture_load(honey_texture* texture, - char* texture_path) -{ - honey_texture_params *params = &(texture->params); - int channels; - - unsigned char* image_data = stbi_load(texture_path, - &(params->width), - &(params->height), - &channels, 0); - if (image_data == NULL) { - return TEXTURE_FAILED; - } - - switch(channels) { - case 1: - params->type = HONEY_TEXTURE_TYPE_GREY; - break; - - case 3: - params->type = HONEY_TEXTURE_TYPE_RGB; - break; - - case 4: - params->type = HONEY_TEXTURE_TYPE_RGBA; - break; - - default: - return TEXTURE_CHANNEL_ERROR; - } - - honey_texture_generate(texture, image_data); - stbi_image_free(image_data); - - return TEXTURE_OK; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -void honey_texture_use(honey_texture texture, int texture_unit) { - glActiveTexture(GL_TEXTURE0 + texture_unit); - glBindTexture(GL_TEXTURE_2D, texture.id); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -void honey_texture_framebuffer_object_new(unsigned int* destination, - honey_texture* draw, - honey_texture* depth, - int width, int height) -{ - glBindTexture(GL_TEXTURE_2D, 0); - - glGenFramebuffers(1, destination); - glBindFramebuffer(GL_FRAMEBUFFER, *destination); - - if (draw != NULL) - glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, draw->id, 0); - else { - glDrawBuffer(GL_NONE); - glReadBuffer(GL_NONE); - } - - if (depth != NULL) - glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, depth->id, 0); - - if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) - printf("framebuffer is not complete!\n"); - - glBindFramebuffer(GL_FRAMEBUFFER, 0); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * Texture parameter setup function definitions - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -static void setup_default_texture_params(honey_texture_params* params) -{ - params->width = HONEY_TEXTURE_DEFAULT_WIDTH; - params->height = HONEY_TEXTURE_DEFAULT_HEIGHT; - params->channels = HONEY_TEXTURE_DEFAULT_CHANNELS; - params->type = HONEY_TEXTURE_DEFAULT_TYPE; - params->mipmaps = HONEY_TEXTURE_DEFAULT_MIPMAPS; - params->min_filter = HONEY_TEXTURE_DEFAULT_MIN_FILTER; - params->mag_filter = HONEY_TEXTURE_DEFAULT_MAG_FILTER; - params->wrap_s = HONEY_TEXTURE_DEFAULT_WRAP_S; - params->wrap_t = HONEY_TEXTURE_DEFAULT_WRAP_T; - params->wrap_r = HONEY_TEXTURE_DEFAULT_WRAP_R; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - - -static void configure_width(lua_State* L, void* data) -{ - honey_texture_params* params = (honey_texture_params*) data; - params->width = lua_tointeger(L, -1); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void configure_height(lua_State* L, void* data) -{ - honey_texture_params* params = (honey_texture_params*) data; - params->height = lua_tointeger(L, -1); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void configure_type(lua_State* L, void* data) -{ - honey_texture_params* params = (honey_texture_params*) data; - const char* type_string = lua_tostring(L, -1); - if (strcmp(type_string, "grey") == 0) { - params->type = HONEY_TEXTURE_TYPE_GREY; - params->channels = 1; - } - else if (strcmp(type_string, "rgb") == 0) { - params->type = HONEY_TEXTURE_TYPE_RGB; - params->channels = 3; - } - else if (strcmp(type_string, "rgba") == 0) { - params->type = HONEY_TEXTURE_TYPE_RGBA; - params->channels = 4; - } - else if (strcmp(type_string, "depth") == 0) { - params->type = HONEY_TEXTURE_TYPE_DEPTH; - params->channels = 1; - } - else { - honey_lua_throw_error - (L, "unknown texture type: '%s'", type_string); - } -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void configure_mipmaps(lua_State* L, void* data) -{ - honey_texture_params* params = (honey_texture_params*) data; - params->mipmaps = lua_toboolean(L, -1); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void configure_min_filter(lua_State* L, void* data) -{ - honey_texture_params* params = (honey_texture_params*) data; - const char* str = lua_tostring(L, -1); - - if (strcmp(str, "nearest") == 0) - params->min_filter = GL_NEAREST; - else if (strcmp(str, "linear") == 0) - params->min_filter = GL_LINEAR; - else if (strcmp(str, "nearest-nearest") == 0) - params->min_filter = GL_NEAREST_MIPMAP_NEAREST; - else if (strcmp(str, "linear-nearest") == 0) - params->min_filter = GL_LINEAR_MIPMAP_NEAREST; - else if (strcmp(str, "nearest-linear") == 0) - params->min_filter = GL_NEAREST_MIPMAP_LINEAR; - else if (strcmp(str, "linear-linear") == 0) - params->min_filter = GL_LINEAR_MIPMAP_LINEAR; - else - honey_lua_throw_error - (L, "unknown minFilter type: '%s'", str); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void configure_mag_filter(lua_State* L, void* data) -{ - honey_texture_params* params = (honey_texture_params*) data; - const char* str = lua_tostring(L, -1); - - if (strcmp(str, "nearest") == 0) - params->mag_filter = GL_NEAREST; - else if (strcmp(str, "linear") == 0) - params->mag_filter = GL_LINEAR; - else - honey_lua_throw_error - (L, "unknown magFilter type: '%s'", str); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void configure_wrap(lua_State* L, const char* string, int* wrap) -{ - if (strcmp(string, "clamp") == 0) - *wrap = GL_CLAMP_TO_EDGE; - else if (strcmp(string, "clamp-border") == 0) - *wrap = GL_CLAMP_TO_BORDER; - else if (strcmp(string, "repeat") == 0) - *wrap = GL_REPEAT; - else if (strcmp(string, "repeat-mirror") == 0) - *wrap = GL_MIRRORED_REPEAT; - else - honey_lua_throw_error - (L, "unknown wrapping type: '%s'", string); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void configure_wrap_s(lua_State* L, void* data) -{ - honey_texture_params* params = (honey_texture_params*) data; - const char* str = lua_tostring(L, -1); - configure_wrap(L, str, &(params->wrap_s)); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void configure_wrap_t(lua_State* L, void* data) -{ - honey_texture_params* params = (honey_texture_params*) data; - const char* str = lua_tostring(L, -1); - configure_wrap(L, str, &(params->wrap_t)); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void configure_wrap_r(lua_State* L, void* data) -{ - honey_texture_params* params = (honey_texture_params*) data; - const char* str = lua_tostring(L, -1); - configure_wrap(L, str, &(params->wrap_r)); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void configure_params(lua_State* L, honey_texture_params* params) -{ - honey_lua_parse_params - (L, 8, 0, - HONEY_INTEGER, "width", configure_width, params, - HONEY_INTEGER, "height", configure_height, params, - HONEY_STRING, "type", configure_type, params, - HONEY_BOOLEAN, "mipmaps", configure_mipmaps, params, - HONEY_STRING, "minFilter", configure_min_filter, params, - HONEY_STRING, "magFilter", configure_mag_filter, params, - HONEY_STRING, "sWrap", configure_wrap_s, params, - HONEY_STRING, "tWrap", configure_wrap_t, params, - HONEY_STRING, "rWrap", configure_wrap_r, params); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ diff --git a/src/texture.h b/src/texture.h deleted file mode 100644 index fbabdda..0000000 --- a/src/texture.h +++ /dev/null @@ -1,125 +0,0 @@ -#ifndef HONEY_TEXTURE_H -#define HONEY_TEXTURE_H - -/** @file texture.h - * - *@brief Defines the honey_texture struct and associated functions. -*/ - -#include "common.h" - -#define HONEY_TEXTURE_DEFAULT_WIDTH 1024 -#define HONEY_TEXTURE_DEFAULT_HEIGHT 1024 -#define HONEY_TEXTURE_DEFAULT_CHANNELS 4 -#define HONEY_TEXTURE_DEFAULT_TYPE HONEY_TEXTURE_TYPE_RGBA -#define HONEY_TEXTURE_DEFAULT_MIPMAPS false -#define HONEY_TEXTURE_DEFAULT_MIN_FILTER GL_LINEAR -#define HONEY_TEXTURE_DEFAULT_MAG_FILTER GL_LINEAR -#define HONEY_TEXTURE_DEFAULT_WRAP_S GL_REPEAT -#define HONEY_TEXTURE_DEFAULT_WRAP_T GL_REPEAT -#define HONEY_TEXTURE_DEFAULT_WRAP_R GL_REPEAT - -#define HONEY_TEXTURE_TYPE_GREY GL_RED -#define HONEY_TEXTURE_TYPE_RGB GL_RGB -#define HONEY_TEXTURE_TYPE_RGBA GL_RGBA -#define HONEY_TEXTURE_TYPE_DEPTH GL_DEPTH_COMPONENT - - -extern int honey_texture_mt_ref; - -enum honey_texture_result { - TEXTURE_OK, - TEXTURE_FAILED, - TEXTURE_CHANNEL_ERROR, - N_TEXTURE_RESULTS }; - -typedef struct { - int width; - int height; - int channels; - int type; - bool mipmaps; - int min_filter; - int mag_filter; - int wrap_s; - int wrap_t; - int wrap_r; -} honey_texture_params; - -typedef struct { - unsigned int id; - honey_texture_params params; -} honey_texture; - -/** @brief Place the honey.texture bindings as a table on the stack. */ -void honey_setup_texture(lua_State* L); - -int honey_lua_texture_new(lua_State* L); - -/** @brief Generate a texture. - * - * @param[out] texture Pointer to the destination texture. - * @param[in] data The data to populate the texture with, or NULL to leave it unpopulated. - * - * @returns Nothing. - */ -void honey_texture_generate(honey_texture* texture, - void* data); - -/** @brief Set the parameters of a texture. - * - * This function takes the parameters given in a texture's `params` field - * and applies them to it's OpenGL object. `honey_texture_generate` must be called - * before using this function. - * - * @param[inout] texture The texture to configure. - */ -void honey_texture_configure(honey_texture* texture); - -/** @brief Update the mipmaps of a texture. - * - * If a texture has params.mipmaps set to false, this function does nothing. - * - * @param[inout] texture The texture to generate new mipmaps for. - * - * @returns Nothing. - */ -void honey_texture_update_mipmaps(honey_texture* texture); - -/** @brief Load a texture from disk. - * - * @param[out] texture Pointer to the destination texture - * @param[in] texture_path Path to the location of the texture - * @param[in] alpha_channel Set to true if the target image contains an alpha channel - * - * @return Success or failure type - */ -enum honey_texture_result honey_texture_load(honey_texture* texture, - char* texture_path); - -/** @brief Load a texture into a texture unit. - * - * @param[in] texture The texture to use - * @param[in] texture_unit The texture unit to put the texture in - */ -void honey_texture_use(honey_texture texture, int texture_unit); - -/** @brief Create a framebuffer object. - * - * You must specify at least one of draw and depth; otherwise, the framebuffer will - * be incomplete and fail. - * - * @param[out] destination Pointer to store the resulting OpenGL handle in. - * @param[in] draw Pointer to a texture to draw to. - * @param[in] depth Pointer to a depth texture. - * @param[in] width The width in pixels of the FBO. - * @param[in] height The height in pixels of the FBO. - * - * @returns Nothing. - */ -void honey_texture_framebuffer_object_new(unsigned int* destination, - honey_texture* draw, - honey_texture* depth, - int width, int height); - -#endif diff --git a/src/window.c b/src/window.c deleted file mode 100644 index ffcaee7..0000000 --- a/src/window.c +++ /dev/null @@ -1,275 +0,0 @@ -#include "window.h" - -int honey_window_info_ref = LUA_NOREF; -int honey_window_resize_callback_ref = LUA_NOREF; -int honey_window_resize_callback_data_ref = LUA_NOREF; -int honey_window_focus_callback_ref = LUA_NOREF; -int honey_window_focus_callback_data_ref = LUA_NOREF; - -static void honey_glfw_window_resize_callback(honey_window window, - int width, int height) -{ - lua_State* L = glfwGetWindowUserPointer(window); - - int callback = honey_window_resize_callback_ref; - int data = honey_window_resize_callback_data_ref; - - if (callback == LUA_NOREF) - return; - - lua_rawgeti(L, LUA_REGISTRYINDEX, callback); - - lua_pushinteger(L, width); - lua_pushinteger(L, height); - - if (data == LUA_NOREF || data == LUA_REFNIL) - lua_pushnil(L); - else - lua_rawgeti(L, LUA_REGISTRYINDEX, data); - - honey_lua_pcall(L, 3, 0); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -static void honey_glfw_window_focus_callback(honey_window window, - int focused) -{ - lua_State* L = glfwGetWindowUserPointer(window); - - int callback = honey_window_focus_callback_ref; - int data = honey_window_focus_callback_data_ref; - - if (callback == LUA_NOREF) - return; - - lua_rawgeti(L, LUA_REGISTRYINDEX, callback); - - lua_pushboolean(L, focused); - - if (data == LUA_NOREF || data == LUA_REFNIL) - lua_pushnil(L); - else - lua_rawgeti(L, LUA_REGISTRYINDEX, data); - - honey_lua_pcall(L, 2, 0); -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -bool honey_setup_window(lua_State* L) -{ - honey_window_information* info = lua_newuserdata(L, sizeof(honey_window_information)); - honey_window_info_ref = luaL_ref(L, LUA_REGISTRYINDEX); - - glfwInit(); - glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3); - glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3); - glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); - - info->window = glfwCreateWindow(HONEY_WINDOW_DEFAULT_WIDTH, - HONEY_WINDOW_DEFAULT_HEIGHT, - "honey", NULL, NULL); - - info->width = HONEY_WINDOW_DEFAULT_WIDTH; - info->height = HONEY_WINDOW_DEFAULT_WIDTH; - info->fullscreen = false; - - if (info->window == NULL) { - fprintf(stderr, "[honey] ERROR: failed to create window!\n"); - glfwTerminate(); - return false; - } - /* store lua state in window, so it's accessible from GLFW callbacks */ - glfwSetWindowUserPointer(info->window, L); - glfwMakeContextCurrent(info->window); - - if (!gladLoadGLLoader((GLADloadproc) glfwGetProcAddress)) { - fprintf(stderr, "[honey] ERROR: failed to initialize GLAD!\n"); - glfwTerminate(); - return false; - } - - // Enable blending - glEnable(GL_BLEND); - glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - - // Enable depth testing - glEnable(GL_DEPTH_TEST); - - // Enable face culling - glEnable(GL_CULL_FACE); - - glfwSetWindowSizeCallback(info->window, honey_glfw_window_resize_callback); - glfwSetWindowFocusCallback(info->window, honey_glfw_window_focus_callback); - - - honey_lua_create_table - (L, 8, - HONEY_FUNCTION, "set_fullscreen", honey_window_set_fullscreen, - HONEY_FUNCTION, "set_title", honey_window_set_title, - HONEY_FUNCTION, "get_size", honey_window_get_size, - HONEY_FUNCTION, "set_size", honey_window_set_size, - HONEY_FUNCTION, "resize_bind", honey_window_resize_bind, - HONEY_FUNCTION, "resize_unbind", honey_window_resize_unbind, - HONEY_FUNCTION, "focus_bind", honey_window_focus_bind, - HONEY_FUNCTION, "focus_unbind", honey_window_focus_unbind); - - lua_setfield(L, -2, "window"); - - return true; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_window_set_fullscreen(lua_State* L) -{ - bool fullscreen; - honey_lua_parse_arguments(L, 1, 1, HONEY_BOOLEAN, &fullscreen); - - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_window_info_ref); - honey_window_information* info = lua_touserdata(L, -1); - - if (fullscreen) { - glfwGetWindowSize(info->window, &(info->width), &(info->height)); - - GLFWmonitor* monitor = glfwGetPrimaryMonitor(); - const GLFWvidmode* mode = glfwGetVideoMode(monitor); - glfwSetWindowMonitor(info->window, monitor, 0, 0, mode->width, mode->height, mode->refreshRate); - info->fullscreen = true; - } - else { - glfwSetWindowMonitor(info->window, NULL, 20, 20, info->width, info->height, 0); - info->fullscreen = false; - } - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_window_set_title(lua_State* L) -{ - char* title; - honey_lua_parse_arguments(L, 1, 1, HONEY_STRING, &title); - - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_window_info_ref); - honey_window_information* info = lua_touserdata(L, -1); - - glfwSetWindowTitle(info->window, title); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_window_get_size(lua_State* L) -{ - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_window_info_ref); - honey_window_information* info = lua_touserdata(L, -1); - - int width, height; - glfwGetWindowSize(info->window, &width, &height); - lua_pushinteger(L, width); - lua_pushinteger(L, height); - return 2; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_window_set_size(lua_State* L) -{ - int width, height; - honey_lua_parse_arguments - (L, 1, 2, - HONEY_INTEGER, &width, - HONEY_INTEGER, &height); - - lua_rawgeti(L, LUA_REGISTRYINDEX, honey_window_info_ref); - honey_window_information* info = lua_touserdata(L, -1); - - glfwSetWindowSize(info->window, width, height); - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_window_resize_bind(lua_State* L) -{ - int choice = honey_lua_parse_arguments - (L, 2, - 1, HONEY_FUNCTION, - 2, HONEY_FUNCTION, HONEY_ANY); - - honey_window_resize_unbind(L); - - lua_pushvalue(L, 1); - honey_window_resize_callback_ref = luaL_ref(L, LUA_REGISTRYINDEX); - - if (choice == 1) { - lua_pushvalue(L, 2); - honey_window_resize_callback_data_ref = luaL_ref(L, LUA_REGISTRYINDEX); - } - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_window_resize_unbind(lua_State* L) -{ - int callback = honey_window_resize_callback_ref; - int data = honey_window_resize_callback_data_ref; - - if (callback != LUA_NOREF) { - luaL_unref(L, LUA_REGISTRYINDEX, callback); - } - - if (data != LUA_NOREF && data != LUA_REFNIL) { - luaL_unref(L, LUA_REGISTRYINDEX, data); - } - - honey_window_resize_callback_ref = LUA_NOREF; - honey_window_resize_callback_data_ref = LUA_NOREF; - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_window_focus_bind(lua_State* L) -{ - int choice = honey_lua_parse_arguments - (L, 2, - 1, HONEY_FUNCTION, - 2, HONEY_FUNCTION, HONEY_ANY); - - honey_window_focus_unbind(L); - - lua_pushvalue(L, 1); - honey_window_focus_callback_ref = luaL_ref(L, LUA_REGISTRYINDEX); - - if (choice == 1) { - lua_pushvalue(L, 2); - honey_window_focus_callback_data_ref = luaL_ref(L, LUA_REGISTRYINDEX); - } - - return 0; -} - -/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ - -int honey_window_focus_unbind(lua_State* L) -{ - int callback = honey_window_focus_callback_ref; - int data = honey_window_focus_callback_data_ref; - - if (callback != LUA_NOREF) { - luaL_unref(L, LUA_REGISTRYINDEX, callback); - } - - if (data != LUA_NOREF && data != LUA_REFNIL) { - luaL_unref(L, LUA_REGISTRYINDEX, callback); - } - - honey_window_focus_callback_ref = LUA_NOREF; - honey_window_focus_callback_data_ref = LUA_NOREF; - return 0; -} diff --git a/src/window.h b/src/window.h deleted file mode 100644 index fb5c036..0000000 --- a/src/window.h +++ /dev/null @@ -1,86 +0,0 @@ -/** @file */ - -#ifndef HONEY_WINDOW_H -#define HONEY_WINDOW_H - -#include "common.h" - -#define HONEY_WINDOW_DEFAULT_WIDTH 640 -#define HONEY_WINDOW_DEFAULT_HEIGHT 480 - -/** @brief Push the various honey.window table to the stack. - * - * @param[in] L The lua state to push to - * @param[in] window The window created by honey_setup() - * - * @returns Nothing. - */ -bool honey_setup_window(lua_State* L); - -/** @brief Set whether or not the window is fullscreen. - * - * Lua parameters: - * @param[in] fullscreen Boolean set to true if the window is to be fullscreen and false otherwise. - * - * @returns Nothing. - */ -int honey_window_set_fullscreen(lua_State* L); - -/** @brief Set the title of the window. - * - * @param[in] title String containing the desired window title. - * - * @returns Nothing. - */ -int honey_window_set_title(lua_State* L); - -/** @brief Get the current size of the window. - * - * @returns width, height numbers representing the window size in pixels. - */ -int honey_window_get_size(lua_State* L); - -/** @brief Set the current size of the window. - * - * @param[in] width Integer of the desired width in pixels. - * @param[in] height Integer of the desired height in pixels. - * - * @returns Nothing. - */ -int honey_window_set_size(lua_State* L); - -/** @brief Bind a call back to the window resize. - * - * @param[in] callback The callback function to call on a window resize. - * - * @returns Nothing. - */ -int honey_window_resize_bind(lua_State* L); - -/** @brief Unbind any callback that may be attached to the window resize. - * - * @returns Nothing. - */ -int honey_window_resize_unbind(lua_State* L); - -/** @brief Bind a callback to the window changing focus. - * - * The supplied callback function should be of the form - * function(boolean, data). The boolean is true if the window - * is gaining focus, and false if it is losing focus. The data is - * just the data parameter passed to this function. - * - * @param callback The callback function to call on a window resize. - * @param data Data to send to the callback. - * - * @returns Nothing. - */ -int honey_window_focus_bind(lua_State* L); - -/** @brief Unbind any callback that may be attached to the window focus. - * - * @returns Nothing. - */ -int honey_window_focus_unbind(lua_State* L); - -#endif |