Building and running for emscripten.

1 files changed, 102 insertions, 76 deletions

diff --git a/platform.c b/platform.c
index 3cb457a..940e57f 100644
--- a/platform.c
+++ b/platform.c
@@ -2,7 +2,11 @@
 #include "render.h"
 #include "input.h"
 
-#if defined(plat_posix)
+#if defined(plat_emscripten)
+#include <emscripten.h>
+#endif
+
+#if defined(plat_posix) || defined(plat_emscripten)
 #define _POSIX_SOURCE
 
 #include <stdlib.h>
@@ -167,66 +171,49 @@ void platform_quit() {
 	app_running = 0;
 }
 
-int main(int argc, char** argv) {
-	SDL_Window* window;
-	SDL_Renderer* renderer;
-	SDL_Texture* backbuffer;
-	void* bb_pixels;
-	SDL_Event event;
-	SDL_Rect src_rect, dst_rect;
+/* lol, lmao
+ * haha */
+static SDL_Window* window;
+static SDL_Renderer* renderer;
+static SDL_Texture* backbuffer;
+static void* bb_pixels;
+static SDL_Event event;
+static SDL_Rect src_rect, dst_rect;
 #if !no_sound
-	SDL_AudioSpec aud_spec;
+static SDL_AudioSpec aud_spec;
 #endif
-	Button button;
-	int ww, wh, bb_pitch, ntw, nth;
-	int to_sleep, begin_time, end_time;
-	SDL_Joystick* joysticks[max_joysticks];
-
-	audio_pos = 0;
-	audio_len = 1024;
-	ticker = 0;
-
-	SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_JOYSTICK);
-
-	SDL_CreateWindowAndRenderer(
-		default_window_w,
-		default_window_h,
-		SDL_WINDOW_RESIZABLE,
-		&window,
-		&renderer
-	);
-
-	SDL_SetWindowTitle(window, game_name);
-
-#if !no_sound
-	aud_spec.freq = 22050;
-	aud_spec.format = AUDIO_U16;
-	aud_spec.channels = 1;
-	aud_spec.samples = 1024;
-	aud_spec.callback = fill_audio;
-	aud_spec.userdata = 0;
+static Button button;
+static int ww, wh, bb_pitch, ntw, nth;
+static int to_sleep, begin_time, end_time;
+static SDL_Joystick* joysticks[max_joysticks];
+
+static void fit_texture(int w, int h) {
+	ntw = renderer_w;
+	nth = renderer_h;
+	texture_w = ntw;
+	texture_h = nth;
+
+	/* This is kinda shit lmao. */
+	while (1) {
+		ntw *= 2;
+		nth *= 2;
+
+		if (
+			ntw > w ||
+			nth > h
+		) {
+			break;
+		}
 
-	if (SDL_OpenAudio(&aud_spec, 0) < 0) {
-		fprintf(
-			stderr,
-			"Sound error: %s.\n",
-			SDL_GetError()
-		);
+		texture_w = ntw;
+		texture_h = nth;
 	}
-	SDL_PauseAudio(0);
-#endif
-
-	on_init(argc, argv);
-
-	backbuffer = SDL_CreateTexture(
-		renderer,
-		SDL_PIXELFORMAT_ABGR8888,
-		SDL_TEXTUREACCESS_STREAMING,
-		renderer_w,
-		renderer_h
-	);
+}
 
+static void main_loop() {
+#if !defined(plat_emscripten)
 	while (app_running) {
+#endif
 		begin_time = SDL_GetTicks();
 
 		reset_input();
@@ -286,27 +273,7 @@ int main(int argc, char** argv) {
 				case SDL_WINDOWEVENT:
 					switch (event.window.event) {
 						case SDL_WINDOWEVENT_RESIZED:
-							ntw = renderer_w;
-							nth = renderer_h;
-							texture_w = ntw;
-							texture_h = nth;
-
-							/* This is kinda shit lmao. */
-							while (1) {
-								ntw *= 2;
-								nth *= 2;
-
-								if (
-									ntw > event.window.data1 ||
-									nth > event.window.data2
-								) {
-									break;
-								}
-
-								texture_w = ntw;
-								texture_h = nth;
-							}
-
+							fit_texture(event.window.data1, event.window.data2);
 							break;
 					}
 				default:
@@ -369,7 +336,66 @@ int main(int argc, char** argv) {
 		if (to_sleep > 0) {
 			SDL_Delay(to_sleep);
 		}
+#if !defined(plat_emscripten)
 	}
+#endif
+}
+
+int main(int argc, char** argv) {
+	audio_pos = 0;
+	audio_len = 1024;
+	ticker = 0;
+
+	SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_JOYSTICK);
+
+	SDL_CreateWindowAndRenderer(
+		default_window_w * renderer_scale,
+		default_window_h * renderer_scale,
+		SDL_WINDOW_RESIZABLE,
+		&window,
+		&renderer
+	);
+
+	SDL_SetWindowTitle(window, game_name);
+
+#if !no_sound
+	aud_spec.freq = 22050;
+	aud_spec.format = AUDIO_U16;
+	aud_spec.channels = 1;
+	aud_spec.samples = 1024;
+	aud_spec.callback = fill_audio;
+	aud_spec.userdata = 0;
+
+	if (SDL_OpenAudio(&aud_spec, 0) < 0) {
+		fprintf(
+			stderr,
+			"Sound error: %s.\n",
+			SDL_GetError()
+		);
+	}
+	SDL_PauseAudio(0);
+#endif
+
+	on_init(argc, argv);
+
+	backbuffer = SDL_CreateTexture(
+		renderer,
+		SDL_PIXELFORMAT_ABGR8888,
+		SDL_TEXTUREACCESS_STREAMING,
+		renderer_w,
+		renderer_h
+	);
+
+	fit_texture(
+		renderer_w * renderer_scale,
+		renderer_h * renderer_scale
+	);
+
+#if defined(plat_emscripten)
+	emscripten_set_main_loop(main_loop, 0, 1);
+#else
+	main_loop();
+#endif
 
 	on_deinit();