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-rw-r--r--src/window.c268
1 files changed, 268 insertions, 0 deletions
diff --git a/src/window.c b/src/window.c
new file mode 100644
index 0000000..6a1fe6f
--- /dev/null
+++ b/src/window.c
@@ -0,0 +1,268 @@
+#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_element window_elements[] = {
+ { "set_fullscreen", HONEY_FUNCTION, { .function = honey_window_set_fullscreen } },
+ { "set_title", HONEY_FUNCTION, { .function = honey_window_set_title } },
+ { "get_size", HONEY_FUNCTION, { .function = honey_window_get_size } },
+ { "set_size", HONEY_FUNCTION, { .function = honey_window_set_size } },
+ { "resize_bind", HONEY_FUNCTION, { .function = honey_window_resize_bind } },
+ { "resize_unbind", HONEY_FUNCTION, { .function = honey_window_resize_unbind } },
+ { "focus_bind", HONEY_FUNCTION, { .function = honey_window_focus_bind } },
+ { "focus_unbind", HONEY_FUNCTION, { .function = honey_window_focus_unbind } },
+ };
+
+ honey_lua_create_table(L, window_elements, 8);
+ return true;
+}
+
+/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
+
+int honey_window_set_fullscreen(lua_State* L)
+{
+ if (!honey_lua_validate_types(L, 1, HONEY_BOOLEAN))
+ lua_error(L);
+
+ bool fullscreen = lua_toboolean(L, 1);
+
+ 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)
+{
+ if (!honey_lua_validate_types(L, 1, HONEY_STRING))
+ lua_error(L);
+
+ const char* title = lua_tostring(L, 1);
+
+ 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)
+{
+ if (!honey_lua_validate_types(L, 2, HONEY_INTEGER, HONEY_INTEGER))
+ lua_error(L);
+
+ int width = lua_tointeger(L, 1);
+ int height = lua_tointeger(L, 2);
+
+ 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)
+{
+ if (!honey_lua_validate_types(L, 2, HONEY_FUNCTION, HONEY_ANY))
+ lua_error(L);
+
+ lua_pushvalue(L, 1);
+ honey_window_resize_callback_ref = luaL_ref(L, LUA_REGISTRYINDEX);
+ 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) {
+ lua_pushnil(L);
+ lua_rawseti(L, LUA_REGISTRYINDEX, callback);
+ }
+
+ if (data != LUA_NOREF && data != LUA_REFNIL) {
+ lua_pushnil(L);
+ lua_rawseti(L, LUA_REGISTRYINDEX, callback);
+ }
+
+ 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)
+{
+ if (!honey_lua_validate_types(L, 2, HONEY_FUNCTION, HONEY_ANY))
+ lua_error(L);
+
+ lua_pushvalue(L, 1);
+ honey_window_focus_callback_ref = luaL_ref(L, LUA_REGISTRYINDEX);
+ 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) {
+ lua_pushnil(L);
+ lua_rawseti(L, LUA_REGISTRYINDEX, callback);
+ }
+
+ if (data != LUA_NOREF && data != LUA_REFNIL) {
+ lua_pushnil(L);
+ lua_rawseti(L, LUA_REGISTRYINDEX, callback);
+ }
+
+ honey_window_focus_callback_ref = LUA_NOREF;
+ honey_window_focus_callback_data_ref = LUA_NOREF;
+ return 0;
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-01 14:31:12 +0000