| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org> |
| |
| This software is provided 'as-is', without any express or implied |
| warranty. In no event will the authors be held liable for any damages |
| arising from the use of this software. |
| |
| Permission is granted to anyone to use this software for any purpose, |
| including commercial applications, and to alter it and redistribute it |
| freely, subject to the following restrictions: |
| |
| 1. The origin of this software must not be misrepresented; you must not |
| claim that you wrote the original software. If you use this software |
| in a product, an acknowledgment in the product documentation would be |
| appreciated but is not required. |
| 2. Altered source versions must be plainly marked as such, and must not be |
| misrepresented as being the original software. |
| 3. This notice may not be removed or altered from any source distribution. |
| */ |
| #include "../../SDL_internal.h" |
| |
| #if SDL_VIDEO_DRIVER_DUMMY |
| |
| #include "../SDL_sysvideo.h" |
| #include "SDL_nullframebuffer_c.h" |
| |
| |
| #define DUMMY_SURFACE "_SDL_DummySurface" |
| |
| int SDL_DUMMY_CreateWindowFramebuffer(_THIS, SDL_Window * window, Uint32 * format, void ** pixels, int *pitch) |
| { |
| SDL_Surface *surface; |
| const Uint32 surface_format = SDL_PIXELFORMAT_RGB888; |
| int w, h; |
| int bpp; |
| Uint32 Rmask, Gmask, Bmask, Amask; |
| |
| /* Free the old framebuffer surface */ |
| surface = (SDL_Surface *) SDL_GetWindowData(window, DUMMY_SURFACE); |
| SDL_FreeSurface(surface); |
| |
| /* Create a new one */ |
| SDL_PixelFormatEnumToMasks(surface_format, &bpp, &Rmask, &Gmask, &Bmask, &Amask); |
| SDL_GetWindowSize(window, &w, &h); |
| surface = SDL_CreateRGBSurface(0, w, h, bpp, Rmask, Gmask, Bmask, Amask); |
| if (!surface) { |
| return -1; |
| } |
| |
| /* Save the info and return! */ |
| SDL_SetWindowData(window, DUMMY_SURFACE, surface); |
| *format = surface_format; |
| *pixels = surface->pixels; |
| *pitch = surface->pitch; |
| return 0; |
| } |
| |
| int SDL_DUMMY_UpdateWindowFramebuffer(_THIS, SDL_Window * window, const SDL_Rect * rects, int numrects) |
| { |
| static int frame_number; |
| SDL_Surface *surface; |
| |
| surface = (SDL_Surface *) SDL_GetWindowData(window, DUMMY_SURFACE); |
| if (!surface) { |
| return SDL_SetError("Couldn't find dummy surface for window"); |
| } |
| |
| /* Send the data to the display */ |
| if (SDL_getenv("SDL_VIDEO_DUMMY_SAVE_FRAMES")) { |
| char file[128]; |
| SDL_snprintf(file, sizeof(file), "SDL_window%d-%8.8d.bmp", |
| SDL_GetWindowID(window), ++frame_number); |
| SDL_SaveBMP(surface, file); |
| } |
| return 0; |
| } |
| |
| void SDL_DUMMY_DestroyWindowFramebuffer(_THIS, SDL_Window * window) |
| { |
| SDL_Surface *surface; |
| |
| surface = (SDL_Surface *) SDL_SetWindowData(window, DUMMY_SURFACE, NULL); |
| SDL_FreeSurface(surface); |
| } |
| |
| #endif /* SDL_VIDEO_DRIVER_DUMMY */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |