diff options
author | chai <chaifix@163.com> | 2019-05-11 22:54:56 +0800 |
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committer | chai <chaifix@163.com> | 2019-05-11 22:54:56 +0800 |
commit | 9645be0af1b1d5cb0ad5892d5464e1b23c51b550 (patch) | |
tree | 129c716bed8e93312421c3adb2f8e7c4f811602d /source/3rd-party/SDL2/src/video/dummy/SDL_nullframebuffer.c |
Diffstat (limited to 'source/3rd-party/SDL2/src/video/dummy/SDL_nullframebuffer.c')
-rw-r--r-- | source/3rd-party/SDL2/src/video/dummy/SDL_nullframebuffer.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/source/3rd-party/SDL2/src/video/dummy/SDL_nullframebuffer.c b/source/3rd-party/SDL2/src/video/dummy/SDL_nullframebuffer.c new file mode 100644 index 0000000..64c7781 --- /dev/null +++ b/source/3rd-party/SDL2/src/video/dummy/SDL_nullframebuffer.c @@ -0,0 +1,89 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2018 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: */ |