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comparison render_sdl.c @ 792:724bbec47f86

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Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
author Michael Pavone <pavone@retrodev.com>
date Sat, 25 Jul 2015 18:22:07 -0700
parents 1b2f8280ba81
children 0b692b5d154b
comparison
equal deleted inserted replaced
791:60686f8d5e48 792:724bbec47f86
182 glAttachShader(program, fshader); 182 glAttachShader(program, fshader);
183 glLinkProgram(program); 183 glLinkProgram(program);
184 GLint link_status; 184 GLint link_status;
185 glGetProgramiv(program, GL_LINK_STATUS, &link_status); 185 glGetProgramiv(program, GL_LINK_STATUS, &link_status);
186 if (!link_status) { 186 if (!link_status) {
187 fputs("Failed to link shader program\n", stderr); 187 fatal_error("Failed to link shader program\n");
188 exit(1);
189 } 188 }
190 un_textures[0] = glGetUniformLocation(program, "textures[0]"); 189 un_textures[0] = glGetUniformLocation(program, "textures[0]");
191 un_textures[1] = glGetUniformLocation(program, "textures[1]"); 190 un_textures[1] = glGetUniformLocation(program, "textures[1]");
192 un_width = glGetUniformLocation(program, "width"); 191 un_width = glGetUniformLocation(program, "width");
193 at_pos = glGetAttribLocation(program, "pos"); 192 at_pos = glGetAttribLocation(program, "pos");
196 char * caption = NULL; 195 char * caption = NULL;
197 196
198 void render_init(int width, int height, char * title, uint32_t fps, uint8_t fullscreen) 197 void render_init(int width, int height, char * title, uint32_t fps, uint8_t fullscreen)
199 { 198 {
200 if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_JOYSTICK) < 0) { 199 if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_JOYSTICK) < 0) {
201 fprintf(stderr, "Unable to init SDL: %s\n", SDL_GetError()); 200 fatal_error("Unable to init SDL: %s\n", SDL_GetError());
202 exit(1); 201 }
203 } 202 atexit(SDL_Quit);
204 printf("width: %d, height: %d\n", width, height); 203 printf("width: %d, height: %d\n", width, height);
205 uint32_t flags = SDL_WINDOW_OPENGL; 204 uint32_t flags = SDL_WINDOW_OPENGL;
206 205
207 206
208 SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5); 207 SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
220 width = mode.w; 219 width = mode.w;
221 height = mode.h; 220 height = mode.h;
222 } 221 }
223 main_window = SDL_CreateWindow(title, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, width, height, flags); 222 main_window = SDL_CreateWindow(title, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, width, height, flags);
224 if (!main_window) { 223 if (!main_window) {
225 fprintf(stderr, "Unable to create SDL window: %s\n", SDL_GetError()); 224 fatal_error("Unable to create SDL window: %s\n", SDL_GetError());
226 SDL_Quit();
227 exit(1);
228 } 225 }
229 SDL_GetWindowSize(main_window, &width, &height); 226 SDL_GetWindowSize(main_window, &width, &height);
230 printf("Window created with size: %d x %d\n", width, height); 227 printf("Window created with size: %d x %d\n", width, height);
231 main_context = SDL_GL_CreateContext(main_window); 228 main_context = SDL_GL_CreateContext(main_window);
232 GLenum res = glewInit(); 229 GLenum res = glewInit();
233 if (res != GLEW_OK) { 230 if (res != GLEW_OK) {
234 fprintf(stderr, "Initialization of GLEW failed with code %d\n", res); 231 fatal_error("Initialization of GLEW failed with code %d\n", res);
235 SDL_Quit();
236 exit(1);
237 } 232 }
238 if (!GLEW_VERSION_2_0) { 233 if (!GLEW_VERSION_2_0) {
239 fputs("BlastEm requires at least OpenGL 2.0, but it is unavailable\n", stderr); 234 fatal_error("BlastEm requires at least OpenGL 2.0, but it is unavailable\n");
240 SDL_Quit();
241 exit(1);
242 } 235 }
243 float aspect = (float)width / height; 236 float aspect = (float)width / height;
244 tern_val def = {.ptrval = "normal"}; 237 tern_val def = {.ptrval = "normal"};
245 if (fabs(aspect - 4.0/3.0) > 0.01 && strcmp(tern_find_path_default(config, "video\0aspect\0", def).ptrval, "stretch")) { 238 if (fabs(aspect - 4.0/3.0) > 0.01 && strcmp(tern_find_path_default(config, "video\0aspect\0", def).ptrval, "stretch")) {
246 for (int i = 0; i < 4; i++) 239 for (int i = 0; i < 4; i++)
292 desired.samples = samples*2; 285 desired.samples = samples*2;
293 desired.callback = audio_callback; 286 desired.callback = audio_callback;
294 desired.userdata = NULL; 287 desired.userdata = NULL;
295 288
296 if (SDL_OpenAudio(&desired, &actual) < 0) { 289 if (SDL_OpenAudio(&desired, &actual) < 0) {
297 fprintf(stderr, "Unable to open SDL audio: %s\n", SDL_GetError()); 290 fatal_error("Unable to open SDL audio: %s\n", SDL_GetError());
298 SDL_Quit();
299 exit(1);
300 } 291 }
301 buffer_samples = actual.samples; 292 buffer_samples = actual.samples;
302 sample_rate = actual.freq; 293 sample_rate = actual.freq;
303 printf("Initialized audio at frequency %d with a %d sample buffer\n", actual.freq, actual.samples); 294 printf("Initialized audio at frequency %d with a %d sample buffer\n", actual.freq, actual.samples);
304 SDL_PauseAudio(0); 295 SDL_PauseAudio(0);
313 printf("\tNum Axes: %d\n\tNum Buttons: %d\n\tNum Hats: %d\n", SDL_JoystickNumAxes(joy), SDL_JoystickNumButtons(joy), SDL_JoystickNumHats(joy)); 304 printf("\tNum Axes: %d\n\tNum Buttons: %d\n\tNum Hats: %d\n", SDL_JoystickNumAxes(joy), SDL_JoystickNumButtons(joy), SDL_JoystickNumHats(joy));
314 } 305 }
315 } 306 }
316 SDL_JoystickEventState(SDL_ENABLE); 307 SDL_JoystickEventState(SDL_ENABLE);
317 308
318 atexit(SDL_Quit);
319 atexit(render_close_audio); 309 atexit(render_close_audio);
320 } 310 }
321 311
322 void render_context(vdp_context * context) 312 void render_context(vdp_context * context)
323 { 313 {
528 uint32_t render_sample_rate() 518 uint32_t render_sample_rate()
529 { 519 {
530 return sample_rate; 520 return sample_rate;
531 } 521 }
532 522
533 523 void render_errorbox(char *title, char *message)
524 {
525 SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, title, message, NULL);
526 }
527
528 void render_warnbox(char *title, char *message)
529 {
530 SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_WARNING, title, message, NULL);
531 }
532
533 void render_infobox(char *title, char *message)
534 {
535 SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_INFORMATION, title, message, NULL);
536 }
537