Bug 40509 - GL_EXT_texture_sRGB_decode Extension is incompatible with WINE
Summary: GL_EXT_texture_sRGB_decode Extension is incompatible with WINE
Status: RESOLVED DUPLICATE of bug 48120
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/DRI/i965 (show other bugs)
Version: 7.11
Hardware: x86 (IA32) Linux (All)
: medium normal
Assignee: Ian Romanick
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Reported: 2011-08-31 02:42 UTC by Md Imam Hossain
Modified: 2012-07-30 21:08 UTC (History)
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Description Md Imam Hossain 2011-08-31 02:42:58 UTC 
Recent versions of WINE starting to use fairly new OpenGL extensions like GL_EXT_texture_sRGB_decode, GL_ARB_draw_elements_base_vertex and GL_ARB_map_buffer_range to further optimise various component of WINE's Direct3D.

from WINE's release notes, WINE uses GL_EXT_texture_sRGB_decode extension to prevent texture duplication:
http://www.winehq.org/announce/1.3.15

Normally running any game with WINE results darker graphics ( games that use shaders )

but if I disable GL_EXT_texture_sRGB_decode extension by
MESA_EXTENSION_OVERRIDE="-GL_EXT_texture_sRGB_decode"
than games graphics becomes normal.


Spec:

Ubuntu 11.04
Linux 3.0.1-030001-generic
X.Org X Server 1.10.2.902 (1.10.3 RC 2)
xf86-video-intel-2.16.0
Mesa 7.12-devel 66e8d223b61dc034fb941e7d704a85ee44d7bbcc (older Mesa versions have same problem)
Comment 1 Md Imam Hossain 2011-08-31 20:04:09 UTC 
This is tested on Intel GMA 4500
Comment 2 Eric Anholt 2012-07-30 20:14:54 UTC 
Possible fix:

http://lists.freedesktop.org/archives/mesa-dev/2012-July/024917.html
Comment 3 Eric Anholt 2012-07-30 21:08:26 UTC 
marking as a dup of the later bug that specifies a particular way to reproduce the problem.

*** This bug has been marked as a duplicate of bug 48120 ***

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