Re: Change TEXTURE_ACCESS from TARGET to STREAMING

stewambo wrote:
> Any help is appreciated

This bug (https://bugzilla.libsdl.org/show_bug.cgi?id=2740) maybe?  If it is, this is the workaround I use (it won't be a drop-in replacement for your code because it assumes a non-NULL rect):


Code:
// Bugfix version of SDL_RenderReadPixels (SDL Bugzilla 2740)
// Also much faster on some platforms because reading pixels from the
// default render target is faster than reading from a target texture.
// n.b. This bugfix routine cannot read a bigger rect than the window!
int Fix_RenderReadPixels(SDL_Renderer* renderer, const SDL_Rect* rect,
                          Uint32 format, void* pixels, int pitch)
{
	int result;
	SDL_Rect dst = {0, 0, rect->w, rect->h};
	SDL_Texture *tex = SDL_GetRenderTarget (renderer);
	SDL_SetRenderTarget(renderer, NULL);
	SDL_RenderCopy(renderer, tex, rect, &dst);
	result = SDL_RenderReadPixels(renderer, &dst, format, pixels, pitch);
	SDL_SetRenderTarget(renderer, tex);
	return result;
}


Richard.

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