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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Priority</th>
<td>high
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [ILK Bisected]Piglit/shaders_glsl-bug-22603 fails"
href="https://bugs.freedesktop.org/show_bug.cgi?id=75291">75291</a>
</td>
</tr>
<tr>
<th>CC</th>
<td>idr@freedesktop.org
</td>
</tr>
<tr>
<th>Assignee</th>
<td>kenneth@whitecape.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[ILK Bisected]Piglit/shaders_glsl-bug-22603 fails
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>huax.lu@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>Drivers/DRI/i965
</td>
</tr>
<tr>
<th>Product</th>
<td>Mesa
</td>
</tr></table>
<p>
<div>
<pre>System Environment:
--------------------------
Platform: Ironlake
Libdrm:
(master)libdrm-2.4.52-4-gc5de5abbd90333fe1359283fb3a5e457b0f389f3
Mesa: (master)57405605a8c320f9d6ea389afd43ce6f013330a5
Xserver:
(master)xorg-server-1.15.0-627-gf34dc7fa96457ea6a0703493d74e63cca357712e
Xf86_video_intel:(master)2.99.910-47-gc91af569ee90a832899c9038badd84921e9a87fc
Cairo: (master)4144307dbfbe7b297135d9ea4b080cae7e06b997
Libva: (staging)fae9c44816a4c3cfc480d2879d1b4a0c1c3a1527
Libva_intel_driver:(staging)bd630edd844b88ea543a027654db296ff7da16cd
Kernel: (drm-intel-nightly) 164a4cb4c1431a0689f85507868356fae24da638
Bug detailed description:
-------------------------
It fails on Ironlake with mesa master branch, works well on 10.1 branch.
Following piglit cases also fail with same bisect commit:
spec_ARB_depth_texture_fbo-depth-GL_DEPTH_COMPONENT24-drawpixels
spec_ARB_depth_texture_fbo-depth-GL_DEPTH_COMPONENT32-drawpixels
spec_EXT_framebuffer_object_fbo-alphatest-nocolor
spec_EXT_framebuffer_object_fbo-alphatest-nocolor-ff
Bisect shows: 09d9a8913e8c28fc4c1c60d7da85a2f093786894 is the first bad commit.
commit 09d9a8913e8c28fc4c1c60d7da85a2f093786894
Author: Kenneth Graunke <<a href="mailto:kenneth@whitecape.org">kenneth@whitecape.org</a>>
AuthorDate: Fri Feb 7 22:22:45 2014 -0800
Commit: Kenneth Graunke <<a href="mailto:kenneth@whitecape.org">kenneth@whitecape.org</a>>
CommitDate: Wed Feb 19 01:46:16 2014 -0800
i965: Pull format conversion logic out of brw_depthbuffer_format.
brw_depthbuffer_format is not very reusable at the moment, since it
uses global state (ctx->DrawBuffer) to access a particular depth buffer.
For HiZ on Broadwell, I need a function which simply converts the
formats. However, at least one existing user of brw_depthbuffer_format
really wants the existing interface. So, I've created a new function.
Signed-off-by: Kenneth Graunke <<a href="mailto:kenneth@whitecape.org">kenneth@whitecape.org</a>>
Reviewed-by: Eric Anholt <<a href="mailto:eric@anholt.net">eric@anholt.net</a>>
output:
Probe color at (500,400)
Expected: 0.300000 0.300000 0.300000
Observed: 0.600000 0.600000 0.600000
Probe color at (220,300)
Expected: 0.100000 0.100000 0.100000
Observed: 0.800000 0.800000 0.800000
Probe color at (450,350)
Expected: 0.300000 0.300000 0.300000
Observed: 0.600000 0.600000 0.600000
Probe color at (270,350)
Expected: 0.100000 0.100000 0.100000
Observed: 0.729412 0.729412 0.729412
Probe color at (270,225)
Expected: 0.010000 0.010000 0.010000
Observed: 0.592157 0.592157 0.592157
Probe color at (450,250)
Expected: 0.090000 0.090000 0.090000
Observed: 0.600000 0.600000 0.600000
PIGLIT: {'result': 'fail' }
Reproduce steps:
-------------------------
1. xinit
2. ./bin/glsl-bug-22603 -fbo -auto</pre>
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