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Bug 2685 - SDL_RenderReadPixels() doesn't work with offscreen targets
Summary: SDL_RenderReadPixels() doesn't work with offscreen targets
Status: RESOLVED FIXED
Alias: None
Product: SDL
Classification: Unclassified
Component: video (show other bugs)
Version: 2.0.3
Hardware: x86_64 Windows 7
: P2 normal
Assignee: Sam Lantinga
QA Contact: Sam Lantinga
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-08-15 11:20 UTC by Andreas Falkenhahn
Modified: 2014-08-17 21:45 UTC (History)
0 users

See Also:

Attachments
Test case (1.51 KB, text/plain)
2014-08-15 11:20 UTC, Andreas Falkenhahn 		Details
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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