https://bugs.freedesktop.org/show_bug.cgi?id=59833
Priority: medium
Bug ID: 59833
Keywords: regression
CC: cwo...@cworth.org
Assignee: mesa-dev@lists.freedesktop.org
Summary: [swrast] piglit glx-swap-pixmap regression
Severity: normal
Classification: Unclassified
OS: Linux (All)
Reporter: v...@freedesktop.org
Hardware: x86-64 (AMD64)
Status: NEW
Version: git
Component: Mesa core
Product: Mesa
mesa: d1f2e9699f3e5e7649fc12c4f2409af91d2494fe (master)
$ ./bin/glx-swap-pixmap -auto
Probe at (0,0)
Expected: 0.000000 1.000000 0.000000 0.000000
Observed: 0.000000 1.000000 0.000000 1.000000
PIGLIT: {'result': 'fail' }
570ed2be7d776211e1ca2a7a4c44ee6a1d141714 is the first bad commit
commit 570ed2be7d776211e1ca2a7a4c44ee6a1d141714
Author: Carl Worth <cwo...@cworth.org>
Date: Mon Jan 21 12:16:27 2013 -0800
ReadPixels: Force ALPHA to 1 while rebasing RGBA values for GL_RGB format
When performing a ReadPixels operation, we may be reading from a buffer
that
stores alpha values, but that is actually representing a buffer with no
alpha
channel. In this case, while rebasing the values, touch up all alpha values
read to 1.0.
This commit fixes the following piglit (sub) tests:
ARB_texture_float/fbo-colormask-formats
GL_RBG16F_ARB
EXT_texture_snorm/fbo-colormask-formats
GL_RGB16_SNORM
GL_RGB8_SNORM
GL_RGB_SNORM
It likely improves the results of other tests as well, but a PASS remains
elusive due to additional bugs.
Reviewed-by: Brian Paul <bri...@vmware.com>
Reviewed-by: Anuj Phogat <anuj.pho...@gmail.com>
:040000 040000 144369a7d3779929bad84beca8f3a5b2ccf90640
c25eb37e73f6f6e5435230fe8a799b1b62ed347b M src
bisect run success
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