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SDL_RenderReadPixels() is restricted to the viewport area.

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This commit is contained in:
Sam Lantinga 2011-03-10 01:00:43 -08:00
parent 768312f0a4
commit 903efd986f
1 changed files with 3 additions and 3 deletions
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6
src/render/SDL_render.c
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@ -1076,8 +1076,8 @@ SDL_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect,
format = SDL_GetWindowPixelFormat(window);
}
real_rect.x = 0;
real_rect.y = 0;
real_rect.x = renderer->viewport.x;
real_rect.y = renderer->viewport.y;
real_rect.w = renderer->viewport.w;
real_rect.h = renderer->viewport.h;
if (rect) {
@ -1088,7 +1088,7 @@ SDL_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect,
pixels = (Uint8 *)pixels + pitch * (real_rect.y - rect->y);
}
if (real_rect.x > rect->x) {
int bpp = SDL_BYTESPERPIXEL(SDL_GetWindowPixelFormat(window));
int bpp = SDL_BYTESPERPIXEL(format);
pixels = (Uint8 *)pixels + bpp * (real_rect.x - rect->x);
}
}