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#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;
}
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