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<base href="https://bugs.freedesktop.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - dEQP-GLES3: Blit operation should perform sRGB encoding/decoding in OpenGL ES 3.0"
href="https://bugs.freedesktop.org/show_bug.cgi?id=89636">89636</a>
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<th>Summary</th>
<td>dEQP-GLES3: Blit operation should perform sRGB encoding/decoding in OpenGL ES 3.0
</td>
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<th>Product</th>
<td>Mesa
</td>
</tr>
<tr>
<th>Version</th>
<td>git
</td>
</tr>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Drivers/DRI/i965
</td>
</tr>
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<th>Assignee</th>
<td>idr@freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>apuentes@igalia.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
</td>
</tr></table>
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<pre>Failed tests:
[37 tests]
* dEQP-GLES3.functional.fbo.blit.conversion.rgba8_to_srgb8_alpha8
* dEQP-GLES3.functional.fbo.blit.conversion.srgb8_alpha8_to_rgba8
* dEQP-GLES3.functional.fbo.blit.conversion.srgb8_alpha8_to_rgb10_a2
* dEQP-GLES3.functional.fbo.blit.conversion.srgb8_alpha8_to_rgba4
* dEQP-GLES3.functional.fbo.blit.conversion.srgb8_alpha8_to_rgb5_a1
* dEQP-GLES3.functional.fbo.blit.conversion.srgb8_alpha8_to_rgb8
* dEQP-GLES3.functional.fbo.blit.conversion.srgb8_alpha8_to_rgb565
* dEQP-GLES3.functional.fbo.blit.conversion.srgb8_alpha8_to_rg8
* dEQP-GLES3.functional.fbo.blit.conversion.srgb8_alpha8_to_r8
* dEQP-GLES3.functional.fbo.blit.conversion.srgb8_alpha8_to_rgba32f
* dEQP-GLES3.functional.fbo.blit.conversion.srgb8_alpha8_to_rgba16f
*
dEQP-GLES3.functional.fbo.blit.conversion.srgb8_alpha8_to_r11f_g11f_b10f
* dEQP-GLES3.functional.fbo.blit.conversion.srgb8_alpha8_to_rg32f
* dEQP-GLES3.functional.fbo.blit.conversion.srgb8_alpha8_to_rg16f
* dEQP-GLES3.functional.fbo.blit.conversion.srgb8_alpha8_to_r32f
* dEQP-GLES3.functional.fbo.blit.conversion.srgb8_alpha8_to_r16f
* dEQP-GLES3.functional.fbo.blit.conversion.rgb10_a2_to_srgb8_alpha8
* dEQP-GLES3.functional.fbo.blit.conversion.rgba4_to_srgb8_alpha8
* dEQP-GLES3.functional.fbo.blit.conversion.rgb5_a1_to_srgb8_alpha8
* dEQP-GLES3.functional.fbo.blit.conversion.rgb8_to_srgb8_alpha8
* dEQP-GLES3.functional.fbo.blit.conversion.rgb565_to_srgb8_alpha8
* dEQP-GLES3.functional.fbo.blit.conversion.rg8_to_srgb8_alpha8
* dEQP-GLES3.functional.fbo.blit.conversion.r8_to_srgb8_alpha8
* dEQP-GLES3.functional.fbo.blit.conversion.rgba32f_to_srgb8_alpha8
* dEQP-GLES3.functional.fbo.blit.conversion.rgba16f_to_srgb8_alpha8
*
dEQP-GLES3.functional.fbo.blit.conversion.r11f_g11f_b10f_to_srgb8_alpha8
* dEQP-GLES3.functional.fbo.blit.conversion.rg32f_to_srgb8_alpha8
* dEQP-GLES3.functional.fbo.blit.conversion.rg16f_to_srgb8_alpha8
* dEQP-GLES3.functional.fbo.blit.conversion.r32f_to_srgb8_alpha8
* dEQP-GLES3.functional.fbo.blit.conversion.r16f_to_srgb8_alpha8
* dEQP-GLES3.functional.fbo.blit.default_framebuffer.srgb8_alpha8
*
dEQP-GLES3.functional.fbo.blit.default_framebuffer.srgb8_alpha8_nearest_scale_blit_from_default
*
dEQP-GLES3.functional.fbo.blit.default_framebuffer.srgb8_alpha8_nearest_scale_blit_to_default
*
dEQP-GLES3.functional.fbo.blit.default_framebuffer.srgb8_alpha8_linear_scale_blit_from_default
*
dEQP-GLES3.functional.fbo.blit.default_framebuffer.srgb8_alpha8_linear_scale_blit_to_default
*
dEQP-GLES3.functional.fbo.blit.default_framebuffer.srgb8_alpha8_linear_out_of_bounds_blit_from_default
*
dEQP-GLES3.functional.fbo.blit.default_framebuffer.srgb8_alpha8_linear_out_of_bounds_blit_to_default
The tests fail because they expect sRGB enconding to be done during the blit
operation if the destination framebuffer is sRGB, and sRGB decoding when
reading if the read framebuffer is sRGB.
- From section 4.3.3 ("Copying Pixels") of the OpenGL ES 3.0 specification
(page 198):
"When values are taken from the read buffer, if the value of
FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING for the framebuffer
attachment corresponding to the read buffer is SRGB (see section
6.1.13), the red, green, and blue components are converted from
the non-linear sRGB color space according to equation 3.24.
When values are written to the draw buffers, blit operations
bypass the fragment pipeline. The only fragment operations which
affect a blit are the pixel ownership test, the scissor test,
and sRGB conversion (see section 4.1.8). Color, depth, and
stencil masks (see section 4.2.2) are ignored."
However, Mesa does not do any sRGB encoding/decoding during the blit. For more
information see:
<a href="http://lists.freedesktop.org/archives/mesa-dev/2015-February/077681.html">http://lists.freedesktop.org/archives/mesa-dev/2015-February/077681.html</a></pre>
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