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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [r600g, bisected] 4 piglit texwrap tests regressed"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77738">77738</a>
</td>
</tr>
<tr>
<th>Keywords</th>
<td>regression
</td>
</tr>
<tr>
<th>CC</th>
<td>brianp@vmware.com
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[r600g, bisected] 4 piglit texwrap tests regressed
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>pavel.ondracka@email.cz
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>git
</td>
</tr>
<tr>
<th>Component</th>
<td>Drivers/Gallium/r600
</td>
</tr>
<tr>
<th>Product</th>
<td>Mesa
</td>
</tr></table>
<p>
<div>
<pre>./texwrap GL_EXT_texture_sRGB-s3tc bordercolor -fbo -auto
Testing GL_EXT_texture_sRGB-s3tc.
Testing the border color only.
Testing GL_COMPRESSED_SRGB, border color only
Testing GL_COMPRESSED_SRGB_ALPHA, border color only
Testing GL_COMPRESSED_SLUMINANCE, border color only
Testing GL_COMPRESSED_SLUMINANCE_ALPHA, border color only
Fail with NEAREST and CLAMP_TO_BORDER at (95,36) @ 0,0
Expected: 25 25 25 204
Observed: 25 25 25 26
Fail with NEAREST and MIRROR_CLAMP_TO_BORDER_EXT at (273,36) @ 0,0
Expected: 25 25 25 204
Observed: 25 25 25 26
Fail with LINEAR and CLAMP at (6,125) @ 0,0
Expected: 82 82 82 216
Observed: 83 83 83 83
Fail with LINEAR and CLAMP_TO_BORDER at (95,125) @ 0,0
Expected: 25 25 25 204
Observed: 25 25 25 26
Fail with LINEAR and MIRROR_CLAMP_EXT at (184,125) @ 0,0
Expected: 82 82 82 216
Observed: 83 83 83 83
Fail with LINEAR and MIRROR_CLAMP_TO_BORDER_EXT at (273,125) @ 0,0
Expected: 25 25 25 204
Observed: 25 25 25 26
Testing GL_COMPRESSED_SRGB_S3TC_DXT1, border color only
Testing GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1, border color only
Testing GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3, border color only
Testing GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5, border color only
Another failing tests:
texwrap GL_EXT_texture_sRGB bordercolor swizzled -fbo -auto
texwrap GL_EXT_texture_sRGB bordercolor -fbo -auto
texwrap GL_EXT_texture_sRGB-s3tc bordercolor swizzled -fbo -auto
First bad commit:
commit 12b959c351d81a35139ad0e504f6f6896077dbd0
Author: Brian Paul <<a href="mailto:brianp@vmware.com">brianp@vmware.com</a>>
Date: Tue Mar 25 11:04:40 2014 -0600
st/mesa: overhaul texture / sample swizzle code
Previously we only examined the GL_DEPTH_MODE state to determine the
sampler view swizzle for depth textures. Now we also consider the
texture base format for color textures too.
The basic idea is if we're sampling from a RGB texture we always
want to get A=1, even if the actual hardware format might be RGBA.
We had assumed that the texture's A values were always one since that's
what Mesa's texstore code does. But if we render to the RGBA texture,
the A values might not be 1. Subsequent sampling didn't return the
right values.
Now we examine the user-specified texture base format vs. the actual
gallium format to determine the right swizzle.
Fixes several fbo-blending-formats, fbo-clear-formats and fbo-tex-rgbx
failures with VMware/svga driver (and possibly other drivers).
No other piglit regressions with softpipe or VMware/svga.
Reviewed-by: Marek Olšák <<a href="mailto:maraeo@gmail.com">maraeo@gmail.com</a>>
GPU: Advanced Micro Devices, Inc. [AMD/ATI] Turks XT [Radeon HD 6670/7670]
Kernel: 3.13.10-200.fc20.x86_64
mesa: f8ae2a56c6164979223d2268691e354fe56d4bec
libdrm: d4083dc762a2974c35ecd16be995272bbb6d57b4</pre>
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