Move to glfw

1 files changed, 78 insertions, 0 deletions

diff --git a/callbacks.c b/callbacks.c
new file mode 100644
index 0000000..806fe86
--- /dev/null
+++ b/callbacks.c
@@ -0,0 +1,78 @@
+
+
+static void framebuffer_callback(GLFWwindow *window, int width, int height) {
+	state.screen_width = width;
+	state.screen_height = height;
+	state.viewport.x = 0;
+	state.viewport.y = 0;
+	state.viewport.w = width;
+	state.viewport.h = height;
+
+	float current_aspect = (float)width / (float)height;
+	float aspect_ratio = 4.f/3.f;
+
+	if(current_aspect > aspect_ratio) {
+		float new_width = height * aspect_ratio;
+		state.viewport.x = (width - new_width) / 2;
+		state.viewport.w = new_width;
+	} else if(current_aspect < aspect_ratio) {
+		float new_height = width / aspect_ratio;
+		state.viewport.y = (height - new_height) / 2;
+		state.viewport.h = new_height;
+	}
+}
+
+static void toggle_fullscreen(bool enable) {
+	static int windowed_x;
+	static int windowed_y;
+	static int windowed_width;
+	static int windowed_height;
+
+	if(enable) {	// Save current windowed size and position
+		glfwGetWindowPos(window, &windowed_x, &windowed_y);
+		glfwGetWindowSize(window, &windowed_width, &windowed_height);
+
+		GLFWmonitor *monitor = glfwGetPrimaryMonitor();
+		const GLFWvidmode *mode = glfwGetVideoMode(monitor);
+
+		glfwSetWindowMonitor(window, monitor, 0, 0, mode->width, mode->height, mode->refreshRate);
+
+	} else {			// Restore to saved windowed position/size
+		glfwSetWindowMonitor(window, 0, windowed_x, windowed_y, windowed_width, windowed_height, 0); // 0 = don't change refresh rate
+	}
+}
+
+static void key_callback(GLFWwindow *window, int key, int scancode, int action, int mods) {
+
+	if(key == GLFW_KEY_ESCAPE) {
+		if(action == GLFW_PRESS) {
+			glfwSetWindowShouldClose(window, 1);
+		}
+	}
+
+	if(action == GLFW_RELEASE) {
+		switch(key) {
+			case GLFW_KEY_F12: {
+				state.toggle_crt_emulation = !state.toggle_crt_emulation;
+			} break;
+
+			case GLFW_KEY_F11: {
+				if(!(mods & GLFW_MOD_SHIFT)) {
+					if(state.fullscreen) {
+						toggle_fullscreen(false);
+						state.fullscreen = false;
+					} else {
+						toggle_fullscreen(true);
+						state.fullscreen = true;
+					}
+				} else {
+#ifdef PROFILER
+					state.overlay = !state.overlay;
+#endif
+				}
+			} break;
+
+			default: break;
+		}
+	}
+}