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Bug 2354 - [ES 2.0] SDL_RenderClear clears render target with wrong color
Summary: [ES 2.0] SDL_RenderClear clears render target with wrong color
Status: RESOLVED FIXED
Alias: None
Product: SDL
Classification: Unclassified
Component: video (show other bugs)
Version: HG 2.0
Hardware: x86_64 Linux
: P2 normal
Assignee: Sam Lantinga
QA Contact: Sam Lantinga
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-01-19 15:28 UTC by ny00
Modified: 2014-02-09 09:49 UTC (History)
1 user (show)

See Also:

Attachments
Sample code (1.40 KB, text/x-csrc)
2014-01-19 15:28 UTC, ny00 		Details
Fix for GLES2_RenderClear. (61.86 KB, text/plain)
2014-02-07 05:53 UTC, Seth Williams 		Details
View All Add an attachment (proposed patch, testcase, etc.)

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Description ny00 2014-01-19 15:28:54 UTC 
Created attachment 1525 [details]
Sample code

SDL_RenderClear clears a render target with the wrong color, if the opengles2 renderer driver is used and the target texture's format is SDL_PIXELFORMAT_ARGB8888.

The bug is *not* reproduced if SDL_PIXELFORMAT_ABGR8888 is used as the texture format (the first from the renderer's list).
It is further not reproduced using any of the following renderer drivers: opengl, opengles (apparently powered by Gallium3D), software.
Finally, the correct color can be drawn using SDL_RenderFillRect (instead of SDL_RenderClear).

A few details about the current setup:
- OS: Ubuntu 12.04 for x86_64
- GPU: GeForce GTX 460
- GPU driver version: 331.20-0ubuntu1~xedgers~precise1 (from the xorg-edgers PPA)
Comment 1 Seth Williams 2014-02-07 05:53:02 UTC 
Created attachment 1551 [details]
Fix for GLES2_RenderClear.

Sam,

It appears that the clear just needs to take the render target format into consideration.

Seth.
Comment 2 Sam Lantinga 2014-02-09 09:49:53 UTC 
Fixed, thanks guys!
http://hg.libsdl.org/SDL/rev/560c66a04082