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Bug 2685

Summary: SDL_RenderReadPixels() doesn't work with offscreen targets
Product: SDL Reporter: Andreas Falkenhahn <andreas>
Component: videoAssignee: Sam Lantinga <slouken>
Status: RESOLVED FIXED QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2    
Version: 2.0.3   
Hardware: x86_64   
OS: Windows 7   
Attachments: Test case

Description Andreas Falkenhahn 2014-08-15 11:20:08 UTC 
Created attachment 1814 [details]
Test case

SDL_RenderReadPixels() doesn't seem to work when trying to read pixels from a texture that has been created using SDL_TEXTUREACCESS_TARGET and has been selected as the render target using SDL_SetRenderTarget().

I am attaching a small program that demonstrates the issue. I get the following result here:

READ PIXEL RETURN: 0 --- COLOR CHECK: ff000000

But it should be:

READ PIXEL RETURN: 0 --- COLOR CHECK: ffff0000

Tested with SDL 2.0.3 on Windows 7.
Comment 1 Sam Lantinga 2014-08-17 21:45:37 UTC 
Fixed, thanks for the great test case!
https://hg.libsdl.org/SDL/rev/7cafa57c23ec