Bug 47259

Summary:	piglit fbo-blending-formats regression
Product:	Mesa	Reporter:	Vinson Lee <vlee>
Component:	Mesa core	Assignee:	mesa-dev
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	medium	CC:	brianp, jfonseca
Version:	git
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Vinson Lee 2012-03-12 22:31:27 UTC

mesa: cc5b0ffae048824a6bdcaf43e0c8c2dd4a7ff14b (master)

piglit fbo-blending-formats fails on softpipe and llvmpipe.

$ ./bin/fbo-blending-formats -auto
Using test set: Core formats
Testing 3
Testing 4
Testing GL_RGB
Testing GL_RGBA
Testing GL_ALPHA
Testing GL_LUMINANCE
Probe at (10,0)
  Expected: 0.300000 0.300000 0.300000 1.000000
  Observed: 0.298039 0.000000 0.000000 1.000000
  when testing FBO result, simple.
Probe at (32,0)
  Expected: 0.480000 0.480000 0.480000 1.000000
  Observed: 0.478431 0.000000 0.000000 1.000000
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.810000 0.810000 1.000000
  Observed: 0.811765 0.000000 0.000000 1.000000
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.760000 0.760000 1.000000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_COLOR.
Probe at (117,0)
  Expected: 0.760000 0.760000 0.760000 1.000000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_ALPHA.
Testing GL_LUMINANCE_ALPHA
Probe at (10,0)
  Expected: 0.300000 0.300000 0.300000 0.000000
  Observed: 0.298039 0.000000 0.000000 0.000000
  when testing FBO result, simple.
Probe at (32,0)
  Expected: 0.480000 0.480000 0.480000 0.500000
  Observed: 0.478431 0.000000 0.000000 0.498039
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.810000 0.810000 0.700000
  Observed: 0.811765 0.000000 0.000000 0.701961
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.760000 0.760000 0.740000
  Observed: 0.760784 0.000000 0.000000 0.741176
  when testing FBO result, blending with SRC_COLOR.
Probe at (96,0)
  Expected: 0.850000 0.850000 0.850000 0.700000
  Observed: 0.850980 0.000000 0.000000 0.701961
  when testing FBO result, blending with DST_ALPHA.
Probe at (117,0)
  Expected: 0.760000 0.760000 0.760000 0.740000
  Observed: 0.760784 0.000000 0.000000 0.741176
  when testing FBO result, blending with SRC_ALPHA.
Testing GL_INTENSITY
Probe at (10,0)
  Expected: 0.300000 0.300000 0.300000 0.300000
  Observed: 0.298039 0.000000 0.000000 1.000000
  when testing FBO result, simple.
Probe at (32,0)
  Expected: 0.480000 0.480000 0.480000 0.480000
  Observed: 0.478431 0.000000 0.000000 1.000000
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.810000 0.810000 0.810000
  Observed: 0.811765 0.000000 0.000000 1.000000
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.760000 0.760000 0.760000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_COLOR.
Probe at (96,0)
  Expected: 0.810000 0.810000 0.810000 0.810000
  Observed: 0.800000 0.000000 0.000000 1.000000
  when testing FBO result, blending with DST_ALPHA.
Probe at (117,0)
  Expected: 0.760000 0.760000 0.760000 0.760000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_ALPHA.
Testing GL_ALPHA4
Testing GL_ALPHA8
Testing GL_ALPHA12
Testing GL_ALPHA16
Testing GL_LUMINANCE4
Probe at (10,0)
  Expected: 0.300000 0.300000 0.300000 1.000000
  Observed: 0.298039 0.000000 0.000000 1.000000
  when testing FBO result, simple.
Probe at (32,0)
  Expected: 0.480000 0.480000 0.480000 1.000000
  Observed: 0.478431 0.000000 0.000000 1.000000
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.810000 0.810000 1.000000
  Observed: 0.811765 0.000000 0.000000 1.000000
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.760000 0.760000 1.000000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_COLOR.
Probe at (117,0)
  Expected: 0.760000 0.760000 0.760000 1.000000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_ALPHA.
Testing GL_LUMINANCE8
Probe at (10,0)
  Expected: 0.300000 0.300000 0.300000 1.000000
  Observed: 0.298039 0.000000 0.000000 1.000000
  when testing FBO result, simple.
Probe at (32,0)
  Expected: 0.480000 0.480000 0.480000 1.000000
  Observed: 0.478431 0.000000 0.000000 1.000000
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.810000 0.810000 1.000000
  Observed: 0.811765 0.000000 0.000000 1.000000
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.760000 0.760000 1.000000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_COLOR.
Probe at (117,0)
  Expected: 0.760000 0.760000 0.760000 1.000000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_ALPHA.
Testing GL_LUMINANCE12
Probe at (10,0)
  Expected: 0.300000 0.300000 0.300000 1.000000
  Observed: 0.298039 0.000000 0.000000 1.000000
  when testing FBO result, simple.
Probe at (32,0)
  Expected: 0.480000 0.480000 0.480000 1.000000
  Observed: 0.478431 0.000000 0.000000 1.000000
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.810000 0.810000 1.000000
  Observed: 0.811765 0.000000 0.000000 1.000000
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.760000 0.760000 1.000000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_COLOR.
Probe at (117,0)
  Expected: 0.760000 0.760000 0.760000 1.000000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_ALPHA.
Testing GL_LUMINANCE16
Probe at (10,0)
  Expected: 0.300000 0.300000 0.300000 1.000000
  Observed: 0.298039 0.000000 0.000000 1.000000
  when testing FBO result, simple.
Probe at (32,0)
  Expected: 0.480000 0.480000 0.480000 1.000000
  Observed: 0.478431 0.000000 0.000000 1.000000
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.810000 0.810000 1.000000
  Observed: 0.811765 0.000000 0.000000 1.000000
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.760000 0.760000 1.000000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_COLOR.
Probe at (117,0)
  Expected: 0.760000 0.760000 0.760000 1.000000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_ALPHA.
Testing GL_LUMINANCE4_ALPHA4
Probe at (10,0)
  Expected: 0.300000 0.300000 0.300000 0.000000
  Observed: 0.266667 0.000000 0.000000 0.000000
  when testing FBO result, simple.
Probe at (32,0)
  Expected: 0.480000 0.480000 0.480000 0.500000
  Observed: 0.466667 0.000000 0.000000 0.466667
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.810000 0.810000 0.700000
  Observed: 0.800000 0.000000 0.000000 0.733333
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.760000 0.760000 0.740000
  Observed: 0.800000 0.000000 0.000000 0.733333
  when testing FBO result, blending with SRC_COLOR.
Probe at (96,0)
  Expected: 0.850000 0.850000 0.850000 0.700000
  Observed: 0.866667 0.000000 0.000000 0.733333
  when testing FBO result, blending with DST_ALPHA.
Probe at (117,0)
  Expected: 0.760000 0.760000 0.760000 0.740000
  Observed: 0.800000 0.000000 0.000000 0.733333
  when testing FBO result, blending with SRC_ALPHA.
Testing GL_LUMINANCE8_ALPHA8
Probe at (10,0)
  Expected: 0.300000 0.300000 0.300000 0.000000
  Observed: 0.298039 0.000000 0.000000 0.000000
  when testing FBO result, simple.
Probe at (32,0)
  Expected: 0.480000 0.480000 0.480000 0.500000
  Observed: 0.478431 0.000000 0.000000 0.498039
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.810000 0.810000 0.700000
  Observed: 0.811765 0.000000 0.000000 0.701961
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.760000 0.760000 0.740000
  Observed: 0.760784 0.000000 0.000000 0.741176
  when testing FBO result, blending with SRC_COLOR.
Probe at (96,0)
  Expected: 0.850000 0.850000 0.850000 0.700000
  Observed: 0.850980 0.000000 0.000000 0.701961
  when testing FBO result, blending with DST_ALPHA.
Probe at (117,0)
  Expected: 0.760000 0.760000 0.760000 0.740000
  Observed: 0.760784 0.000000 0.000000 0.741176
  when testing FBO result, blending with SRC_ALPHA.
Testing GL_LUMINANCE12_ALPHA12
Probe at (10,0)
  Expected: 0.300000 0.300000 0.300000 0.000000
  Observed: 0.298039 0.000000 0.000000 0.000000
  when testing FBO result, simple.
Probe at (32,0)
  Expected: 0.480000 0.480000 0.480000 0.500000
  Observed: 0.478431 0.000000 0.000000 0.498039
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.810000 0.810000 0.700000
  Observed: 0.811765 0.000000 0.000000 0.701961
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.760000 0.760000 0.740000
  Observed: 0.760784 0.000000 0.000000 0.741176
  when testing FBO result, blending with SRC_COLOR.
Probe at (96,0)
  Expected: 0.850000 0.850000 0.850000 0.700000
  Observed: 0.850980 0.000000 0.000000 0.701961
  when testing FBO result, blending with DST_ALPHA.
Probe at (117,0)
  Expected: 0.760000 0.760000 0.760000 0.740000
  Observed: 0.760784 0.000000 0.000000 0.741176
  when testing FBO result, blending with SRC_ALPHA.
Testing GL_LUMINANCE16_ALPHA16
Probe at (10,0)
  Expected: 0.300000 0.300000 0.300000 0.000000
  Observed: 0.298039 0.000000 0.000000 0.000000
  when testing FBO result, simple.
Probe at (32,0)
  Expected: 0.480000 0.480000 0.480000 0.500000
  Observed: 0.478431 0.000000 0.000000 0.498039
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.810000 0.810000 0.700000
  Observed: 0.811765 0.000000 0.000000 0.701961
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.760000 0.760000 0.740000
  Observed: 0.760784 0.000000 0.000000 0.741176
  when testing FBO result, blending with SRC_COLOR.
Probe at (96,0)
  Expected: 0.850000 0.850000 0.850000 0.700000
  Observed: 0.850980 0.000000 0.000000 0.701961
  when testing FBO result, blending with DST_ALPHA.
Probe at (117,0)
  Expected: 0.760000 0.760000 0.760000 0.740000
  Observed: 0.760784 0.000000 0.000000 0.741176
  when testing FBO result, blending with SRC_ALPHA.
Testing GL_INTENSITY4
Probe at (10,0)
  Expected: 0.300000 0.300000 0.300000 0.300000
  Observed: 0.298039 0.000000 0.000000 1.000000
  when testing FBO result, simple.
Probe at (32,0)
  Expected: 0.480000 0.480000 0.480000 0.480000
  Observed: 0.478431 0.000000 0.000000 1.000000
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.810000 0.810000 0.810000
  Observed: 0.811765 0.000000 0.000000 1.000000
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.760000 0.760000 0.760000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_COLOR.
Probe at (96,0)
  Expected: 0.810000 0.810000 0.810000 0.810000
  Observed: 0.800000 0.000000 0.000000 1.000000
  when testing FBO result, blending with DST_ALPHA.
Probe at (117,0)
  Expected: 0.760000 0.760000 0.760000 0.760000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_ALPHA.
Testing GL_INTENSITY8
Probe at (10,0)
  Expected: 0.300000 0.300000 0.300000 0.300000
  Observed: 0.298039 0.000000 0.000000 1.000000
  when testing FBO result, simple.
Probe at (32,0)
  Expected: 0.480000 0.480000 0.480000 0.480000
  Observed: 0.478431 0.000000 0.000000 1.000000
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.810000 0.810000 0.810000
  Observed: 0.811765 0.000000 0.000000 1.000000
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.760000 0.760000 0.760000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_COLOR.
Probe at (96,0)
  Expected: 0.810000 0.810000 0.810000 0.810000
  Observed: 0.800000 0.000000 0.000000 1.000000
  when testing FBO result, blending with DST_ALPHA.
Probe at (117,0)
  Expected: 0.760000 0.760000 0.760000 0.760000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_ALPHA.
Testing GL_INTENSITY12
Probe at (10,0)
  Expected: 0.300000 0.300000 0.300000 0.300000
  Observed: 0.298039 0.000000 0.000000 1.000000
  when testing FBO result, simple.
Probe at (32,0)
  Expected: 0.480000 0.480000 0.480000 0.480000
  Observed: 0.478431 0.000000 0.000000 1.000000
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.810000 0.810000 0.810000
  Observed: 0.811765 0.000000 0.000000 1.000000
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.760000 0.760000 0.760000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_COLOR.
Probe at (96,0)
  Expected: 0.810000 0.810000 0.810000 0.810000
  Observed: 0.800000 0.000000 0.000000 1.000000
  when testing FBO result, blending with DST_ALPHA.
Probe at (117,0)
  Expected: 0.760000 0.760000 0.760000 0.760000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_ALPHA.
Testing GL_INTENSITY16
Probe at (10,0)
  Expected: 0.300000 0.300000 0.300000 0.300000
  Observed: 0.298039 0.000000 0.000000 1.000000
  when testing FBO result, simple.
Probe at (32,0)
  Expected: 0.480000 0.480000 0.480000 0.480000
  Observed: 0.478431 0.000000 0.000000 1.000000
  when testing FBO result, blending with CONSTANT_COLOR.
Probe at (53,0)
  Expected: 0.810000 0.810000 0.810000 0.810000
  Observed: 0.811765 0.000000 0.000000 1.000000
  when testing FBO result, blending with DST_COLOR.
Probe at (74,0)
  Expected: 0.760000 0.760000 0.760000 0.760000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_COLOR.
Probe at (96,0)
  Expected: 0.810000 0.810000 0.810000 0.810000
  Observed: 0.800000 0.000000 0.000000 1.000000
  when testing FBO result, blending with DST_ALPHA.
Probe at (117,0)
  Expected: 0.760000 0.760000 0.760000 0.760000
  Observed: 0.760784 0.000000 0.000000 1.000000
  when testing FBO result, blending with SRC_ALPHA.
Testing GL_R3_G3_B2
Testing GL_RGB4
Testing GL_RGB5
Testing GL_RGB8
Testing GL_RGB10
Testing GL_RGB12
Testing GL_RGB16
Testing GL_RGBA2
Testing GL_RGBA4
Testing GL_RGB5_A1
Testing GL_RGBA8
Testing GL_RGB10_A2
Testing GL_RGBA12
Testing GL_RGBA16
PIGLIT: {'result': 'fail' }

Comment 1 Vinson Lee 2012-03-12 22:42:25 UTC

ad897fff7730298c21289768d9b1b55f3d166ac5 is the first bad commit
commit ad897fff7730298c21289768d9b1b55f3d166ac5
Author: Brian Paul <brianp@vmware.com>
Date:   Wed Feb 29 20:55:50 2012 -0700

    mesa: use _mesa_rebase_rgba_float/uint() in glReadPixels code
    
    See the comments for _mesa_rebase_rgba_float() for details.
    Fixes https://bugs.freedesktop.org/show_bug.cgi?id=46679
    
    NOTE: This is a candidate for the 8.0 branch.
    
    Reviewed-by: José Fonseca <jfonseca@vmware.com>

Comment 2 Brian Paul 2012-03-13 07:56:09 UTC

This was the same as bug 47217 and fixed with piglit commit d17bcdffe3b7e90ca2a7ecd853be22cde9ca111e

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