[Bug 36965] New: GL_EXT_texture_sRGB (included in OpenGL 2.1) is broken

[bugzilla-daemon@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=36965

           Summary: GL_EXT_texture_sRGB (included in OpenGL 2.1) is broken
           Product: Mesa
           Version: 7.10
          Platform: All
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/r600
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: marlam@marlam.de


The GL extension GL_EXT_texture_sRGB (which is in OpenGL 2.1 core) defines the
texture formats GL_SRGB and friends and specifies that sampling such a texture
automatically converts the values from non-linear RGB (sRGB) to linear RGB.

However, this conversion is not performed; the textures are sampled as if they
were normal GL_RGB textures. This results in wrong colors (e.g. in the Bino 3D
video player: far too bright).

I'm running Ubuntu 11.04 on x86_64 and get the following version info from GL:
OpenGL version: 2.1 Mesa 7.10.2
OpenGL renderer: Gallium 0.4 on AMD RV710
OpenGL vendor: X.Org

If you need more information, please let me know.

[This is the same as bug 32323, but re-reported for newer Mesa versions]

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