[Bug 12020] New: depth texture implement incorrect if DEPTH_TEXTURE_MODE is ALPHA

[<bug...@fr...>]

http://bugs.freedesktop.org/show_bug.cgi?id=12020

           Summary: depth texture implement incorrect if DEPTH_TEXTURE_MODE
                    is ALPHA
           Product: Mesa
           Version: CVS
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i915
        AssignedTo: hai...@in...
        ReportedBy: ni...@in...
                CC: dri...@li...


If specify GL_DEPTH_TEXTURE_MODE as GL_ALPHA, the depth component value does
not apply to pixels' alpha component.

If change the GL_DEPTH_TEXTURE_MODE to GL_LUMINANCE, the depth texture value
will apply to pixels' RGB component.


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