mirror of
https://github.com/thunderbrewhq/thunderbrew
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84 lines
2.7 KiB
C
84 lines
2.7 KiB
C
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_internal.h"
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#ifdef SDL_VIDEO_DRIVER_DUMMY
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#include "../SDL_sysvideo.h"
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#include "SDL_nullframebuffer_c.h"
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#define DUMMY_SURFACE "_SDL_DummySurface"
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static void CleanupSurface(void *userdata, void *value)
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{
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SDL_Surface *surface = (SDL_Surface *)value;
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SDL_DestroySurface(surface);
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}
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int SDL_DUMMY_CreateWindowFramebuffer(SDL_VideoDevice *_this, SDL_Window *window, Uint32 *format, void **pixels, int *pitch)
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{
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SDL_Surface *surface;
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const Uint32 surface_format = SDL_PIXELFORMAT_XRGB8888;
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int w, h;
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/* Create a new framebuffer */
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SDL_GetWindowSizeInPixels(window, &w, &h);
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surface = SDL_CreateSurface(w, h, surface_format);
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if (surface == NULL) {
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return -1;
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}
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/* Save the info and return! */
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SDL_SetProperty(SDL_GetWindowProperties(window), DUMMY_SURFACE, surface, CleanupSurface, NULL);
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*format = surface_format;
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*pixels = surface->pixels;
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*pitch = surface->pitch;
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return 0;
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}
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int SDL_DUMMY_UpdateWindowFramebuffer(SDL_VideoDevice *_this, SDL_Window *window, const SDL_Rect *rects, int numrects)
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{
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static int frame_number;
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SDL_Surface *surface;
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surface = (SDL_Surface *)SDL_GetProperty(SDL_GetWindowProperties(window), DUMMY_SURFACE);
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if (surface == NULL) {
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return SDL_SetError("Couldn't find dummy surface for window");
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}
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/* Send the data to the display */
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if (SDL_getenv("SDL_VIDEO_DUMMY_SAVE_FRAMES")) {
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char file[128];
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(void)SDL_snprintf(file, sizeof(file), "SDL_window%" SDL_PRIu32 "-%8.8d.bmp",
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SDL_GetWindowID(window), ++frame_number);
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SDL_SaveBMP(surface, file);
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}
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return 0;
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}
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void SDL_DUMMY_DestroyWindowFramebuffer(SDL_VideoDevice *_this, SDL_Window *window)
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{
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SDL_ClearProperty(SDL_GetWindowProperties(window), DUMMY_SURFACE);
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}
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#endif /* SDL_VIDEO_DRIVER_DUMMY */
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