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comparison src/video/dummy/SDL_nullrender.c @ 3451:a65f7b3a2524

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Implemented SDL_RenderReadPixels()/SDL_RenderWritePixels() for the dummy renderer. This is helpful to validate the automated test suite, since this renderer is super simple and should always pass tests.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 18 Nov 2009 09:20:01 +0000
parents 2133d2d300fd
children 0267b8b1595c
comparison
equal deleted inserted replaced
3450:173199bce642 3451:a65f7b3a2524
38 const SDL_Rect * rect); 38 const SDL_Rect * rect);
39 static int SDL_DUMMY_RenderCopy(SDL_Renderer * renderer, 39 static int SDL_DUMMY_RenderCopy(SDL_Renderer * renderer,
40 SDL_Texture * texture, 40 SDL_Texture * texture,
41 const SDL_Rect * srcrect, 41 const SDL_Rect * srcrect,
42 const SDL_Rect * dstrect); 42 const SDL_Rect * dstrect);
43 static int SDL_DUMMY_RenderReadPixels(SDL_Renderer * renderer,
44 const SDL_Rect * rect,
45 Uint32 format,
46 void * pixels, int pitch);
47 static int SDL_DUMMY_RenderWritePixels(SDL_Renderer * renderer,
48 const SDL_Rect * rect,
49 Uint32 format,
50 const void * pixels, int pitch);
43 static void SDL_DUMMY_RenderPresent(SDL_Renderer * renderer); 51 static void SDL_DUMMY_RenderPresent(SDL_Renderer * renderer);
44 static void SDL_DUMMY_DestroyRenderer(SDL_Renderer * renderer); 52 static void SDL_DUMMY_DestroyRenderer(SDL_Renderer * renderer);
45 53
46 54
47 SDL_RenderDriver SDL_DUMMY_RenderDriver = { 55 SDL_RenderDriver SDL_DUMMY_RenderDriver = {
93 101
94 renderer->RenderPoint = SDL_DUMMY_RenderPoint; 102 renderer->RenderPoint = SDL_DUMMY_RenderPoint;
95 renderer->RenderLine = SDL_DUMMY_RenderLine; 103 renderer->RenderLine = SDL_DUMMY_RenderLine;
96 renderer->RenderFill = SDL_DUMMY_RenderFill; 104 renderer->RenderFill = SDL_DUMMY_RenderFill;
97 renderer->RenderCopy = SDL_DUMMY_RenderCopy; 105 renderer->RenderCopy = SDL_DUMMY_RenderCopy;
106 renderer->RenderReadPixels = SDL_DUMMY_RenderReadPixels;
107 renderer->RenderWritePixels = SDL_DUMMY_RenderWritePixels;
98 renderer->RenderPresent = SDL_DUMMY_RenderPresent; 108 renderer->RenderPresent = SDL_DUMMY_RenderPresent;
99 renderer->DestroyRenderer = SDL_DUMMY_DestroyRenderer; 109 renderer->DestroyRenderer = SDL_DUMMY_DestroyRenderer;
100 renderer->info.name = SDL_DUMMY_RenderDriver.info.name; 110 renderer->info.name = SDL_DUMMY_RenderDriver.info.name;
101 renderer->info.flags = 0; 111 renderer->info.flags = 0;
102 renderer->window = window->id; 112 renderer->window = window->id;
223 233
224 return SDL_LowerBlit(surface, &real_srcrect, target, &real_dstrect); 234 return SDL_LowerBlit(surface, &real_srcrect, target, &real_dstrect);
225 } 235 }
226 } 236 }
227 237
238 static int
239 SDL_DUMMY_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect,
240 Uint32 format, void * pixels, int pitch)
241 {
242 SDL_DUMMY_RenderData *data =
243 (SDL_DUMMY_RenderData *) renderer->driverdata;
244 SDL_Window *window = SDL_GetWindowFromID(renderer->window);
245 SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
246 SDL_Surface *screen = data->screens[data->current_screen];
247 Uint32 screen_format = display->current_mode.format;
248 Uint8 *screen_pixels = (Uint8 *) screen->pixels +
249 rect->y * screen->pitch +
250 rect->x * screen->format->BytesPerPixel;
251 int screen_pitch = screen->pitch;
252
253 return SDL_ConvertPixels(rect->w, rect->h,
254 screen_format, screen_pixels, screen_pitch,
255 format, pixels, pitch);
256 }
257
258 static int
259 SDL_DUMMY_RenderWritePixels(SDL_Renderer * renderer, const SDL_Rect * rect,
260 Uint32 format, const void * pixels, int pitch)
261 {
262 SDL_DUMMY_RenderData *data =
263 (SDL_DUMMY_RenderData *) renderer->driverdata;
264 SDL_Window *window = SDL_GetWindowFromID(renderer->window);
265 SDL_VideoDisplay *display = SDL_GetDisplayFromWindow(window);
266 SDL_Surface *screen = data->screens[data->current_screen];
267 Uint32 screen_format = display->current_mode.format;
268 Uint8 *screen_pixels = (Uint8 *) screen->pixels +
269 rect->y * screen->pitch +
270 rect->x * screen->format->BytesPerPixel;
271 int screen_pitch = screen->pitch;
272
273 return SDL_ConvertPixels(rect->w, rect->h,
274 format, pixels, pitch,
275 screen_format, screen_pixels, screen_pitch);
276 }
277
228 static void 278 static void
229 SDL_DUMMY_RenderPresent(SDL_Renderer * renderer) 279 SDL_DUMMY_RenderPresent(SDL_Renderer * renderer)
230 { 280 {
231 static int frame_number; 281 static int frame_number;
232 SDL_DUMMY_RenderData *data = 282 SDL_DUMMY_RenderData *data =