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video: Allow unaccelerated SDL_HINT_FRAMEBUFFER_ACCELERATION renderers.

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If the app requested a specific renderer, even if it's not the optimal path,
let them have it, because they might want to render with a specific GPU API
on top of the framebuffer pixels.

This fixes DosBox-X crashing on startup, which forces the hint to "opengl".
This commit is contained in:
Ryan C. Gordon 2022-02-23 09:10:46 -05:00
parent 60ddb74cfe
commit b946e31ec8
1 changed files with 4 additions and 10 deletions
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14
src/video/SDL_video.c
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@ -199,15 +199,11 @@ SDL_CreateWindowTexture(SDL_VideoDevice *_this, SDL_Window * window, Uint32 * fo
break;
}
}
if (!renderer) {
if (!renderer || (SDL_GetRendererInfo(renderer, &info) == -1)) {
if (renderer) { SDL_DestroyRenderer(renderer); }
return SDL_SetError("Requested renderer for " SDL_HINT_FRAMEBUFFER_ACCELERATION " is not available");
} else if (SDL_GetRendererInfo(renderer, &info) == -1) {
SDL_DestroyRenderer(renderer);
return SDL_SetError("Requested renderer for " SDL_HINT_FRAMEBUFFER_ACCELERATION " is not available");
} else if ((info.flags & SDL_RENDERER_ACCELERATED) == 0) {
SDL_DestroyRenderer(renderer);
return SDL_SetError("Requested renderer for " SDL_HINT_FRAMEBUFFER_ACCELERATION " is not accelerated");
}
/* if it was specifically requested, even if SDL_RENDERER_ACCELERATED isn't set, we'll accept this renderer. */
} else {
for (i = 0; i < SDL_GetNumRenderDrivers(); ++i) {
SDL_GetRenderDriverInfo(i, &info);
@ -227,9 +223,7 @@ SDL_CreateWindowTexture(SDL_VideoDevice *_this, SDL_Window * window, Uint32 * fo
}
}
/* Both of these checks should be handled above. */
SDL_assert(renderer != NULL);
SDL_assert(info.flags & SDL_RENDERER_ACCELERATED);
SDL_assert(renderer != NULL); /* should have explicitly checked this above. */
/* Create the data after we successfully create the renderer (bug #1116) */
data = (SDL_WindowTextureData *)SDL_calloc(1, sizeof(*data));