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comparison render_sdl.c @ 2600:251cc75574af

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Basic emscripten support
author Michael Pavone <pavone@retrodev.com>
date Thu, 13 Feb 2025 02:18:30 -0800
parents 35f765c2bc87
children f5603b4ee14d
comparison
equal deleted inserted replaced
2599:ca8141c2d6ba 2600:251cc75574af
105 return sync_src < SYNC_VIDEO; 105 return sync_src < SYNC_VIDEO;
106 } 106 }
107 107
108 uint8_t render_should_release_on_exit(void) 108 uint8_t render_should_release_on_exit(void)
109 { 109 {
110 #ifdef __EMSCRIPTEN__
111 return 0;
112 #else
110 return sync_src != SYNC_AUDIO_THREAD; 113 return sync_src != SYNC_AUDIO_THREAD;
114 #endif
111 } 115 }
112 116
113 void render_buffer_consumed(audio_source *src) 117 void render_buffer_consumed(audio_source *src)
114 { 118 {
115 SDL_CondSignal(src->opaque); 119 SDL_CondSignal(src->opaque);
1269 windowed_height = height; 1273 windowed_height = height;
1270 1274
1271 SDL_DisplayMode mode; 1275 SDL_DisplayMode mode;
1272 //TODO: Explicit multiple monitor support 1276 //TODO: Explicit multiple monitor support
1273 SDL_GetCurrentDisplayMode(0, &mode); 1277 SDL_GetCurrentDisplayMode(0, &mode);
1278 #ifdef __EMSCRIPTEN__
1279 display_hz = 60; //TODO: FIXME
1280 #else
1274 display_hz = mode.refresh_rate; 1281 display_hz = mode.refresh_rate;
1282 #endif
1275 1283
1276 if (fullscreen) { 1284 if (fullscreen) {
1277 //the SDL2 migration guide suggests setting width and height to 0 when using SDL_WINDOW_FULLSCREEN_DESKTOP 1285 //the SDL2 migration guide suggests setting width and height to 0 when using SDL_WINDOW_FULLSCREEN_DESKTOP
1278 //but that doesn't seem to work right when using OpenGL, at least on Linux anyway 1286 //but that doesn't seem to work right when using OpenGL, at least on Linux anyway
1279 width = mode.w; 1287 width = mode.w;
1507 } 1515 }
1508 #endif 1516 #endif
1509 free(path); 1517 free(path);
1510 } 1518 }
1511 1519
1520 #ifndef __EMSCRIPTEN__
1512 void GLAPIENTRY gl_message_callback(GLenum source, GLenum type, GLenum id, GLenum severity, GLsizei length, const GLchar *message, const void *user) 1521 void GLAPIENTRY gl_message_callback(GLenum source, GLenum type, GLenum id, GLenum severity, GLsizei length, const GLchar *message, const void *user)
1513 { 1522 {
1514 fprintf(stderr, "GL Message: %d, %d, %d - %s\n", source, type, severity, message); 1523 fprintf(stderr, "GL Message: %d, %d, %d - %s\n", source, type, severity, message);
1515 } 1524 }
1525 #endif
1516 1526
1517 uint8_t render_create_window(char *caption, uint32_t width, uint32_t height, window_close_handler close_handler) 1527 uint8_t render_create_window(char *caption, uint32_t width, uint32_t height, window_close_handler close_handler)
1518 { 1528 {
1519 uint8_t win_idx = 0xFF; 1529 uint8_t win_idx = 0xFF;
1520 for (int i = 0; i < num_extras; i++) 1530 for (int i = 0; i < num_extras; i++)
1551 extras[win_idx].height = height; 1561 extras[win_idx].height = height;
1552 #ifndef DISABLE_OPENGL 1562 #ifndef DISABLE_OPENGL
1553 if (render_gl) { 1563 if (render_gl) {
1554 extras[win_idx].gl_context = SDL_GL_CreateContext(extras[win_idx].win); 1564 extras[win_idx].gl_context = SDL_GL_CreateContext(extras[win_idx].win);
1555 SDL_GL_MakeCurrent(extras[win_idx].win, extras[win_idx].gl_context); 1565 SDL_GL_MakeCurrent(extras[win_idx].win, extras[win_idx].gl_context);
1566 #ifndef __EMSCRIPTEN__
1556 glEnable(GL_DEBUG_OUTPUT); 1567 glEnable(GL_DEBUG_OUTPUT);
1557 if (glDebugMessageCallback) { 1568 if (glDebugMessageCallback) {
1558 glDebugMessageCallback(gl_message_callback, NULL); 1569 glDebugMessageCallback(gl_message_callback, NULL);
1559 } 1570 }
1571 #endif
1560 glGenTextures(2, extras[win_idx].gl_texture); 1572 glGenTextures(2, extras[win_idx].gl_texture);
1561 for (int i = 0; i < 2; i++) 1573 for (int i = 0; i < 2; i++)
1562 { 1574 {
1563 glBindTexture(GL_TEXTURE_2D, extras[win_idx].gl_texture[i]); 1575 glBindTexture(GL_TEXTURE_2D, extras[win_idx].gl_texture[i]);
1564 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1576 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
2254 void render_set_ui_render_fun(ui_render_fun fun) 2266 void render_set_ui_render_fun(ui_render_fun fun)
2255 { 2267 {
2256 render_ui = fun; 2268 render_ui = fun;
2257 } 2269 }
2258 2270
2271 static ui_render_fun frame_presented;
2272 void render_set_frame_presented_fun(ui_render_fun fun)
2273 {
2274 frame_presented = fun;
2275 }
2276
2259 void render_update_display() 2277 void render_update_display()
2260 { 2278 {
2261 #ifndef DISABLE_OPENGL 2279 #ifndef DISABLE_OPENGL
2262 if (render_gl) { 2280 if (render_gl) {
2263 SDL_GL_MakeCurrent(main_window, main_context); 2281 SDL_GL_MakeCurrent(main_window, main_context);
2326 #endif 2344 #endif
2327 if (!events_processed) { 2345 if (!events_processed) {
2328 process_events(); 2346 process_events();
2329 } 2347 }
2330 events_processed = 0; 2348 events_processed = 0;
2349 if (frame_presented) {
2350 frame_presented();
2351 }
2331 } 2352 }
2332 2353
2333 uint32_t render_emulated_width() 2354 uint32_t render_emulated_width()
2334 { 2355 {
2335 return last_width - overscan_left[video_standard] - overscan_right[video_standard]; 2356 return last_width - overscan_left[video_standard] - overscan_right[video_standard];