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Issue 646182 link

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Issue metadata

Status: Verified
Owner: ----
Closed: Nov 2016
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 2
Type: Bug

Blocking:
issue 429053



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Mac AMD readPixels from RGB buffer into PIXEL_PACK_BUFFER returns wrong alpha value

Project Member Reported by zmo@chromium.org, Sep 12 2016

Issue description

According to spec, 255 should be returned of source does not have alpha channel, on MacOSX with AMD GPU, 0 is returned.


 

Comment 3 by kbr@chromium.org, Sep 13 2016

Filed as Radar 28270713.

Comment 4 by zmo@chromium.org, Nov 8 2016

Status: Verified (was: Available)
Fixed on OSX 10.12.2 Beta (16C32f) on Mac Retina AMD

Comment 5 by zmo@chromium.org, Dec 19 2016

I resolved the radar.

Comment 6 by kbr@chromium.org, Dec 19 2016

Thanks Mo!

Project Member

Comment 7 by bugdroid1@chromium.org, Jun 8 2017

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/1733d120eb79e2d8d49b18892e60ee1297f646f7

commit 1733d120eb79e2d8d49b18892e60ee1297f646f7
Author: zmo <zmo@chromium.org>
Date: Thu Jun 08 23:24:48 2017

Update WebGL2 conformance test expectations for Mac bots.

BUG= 598930 , 617290 , 618464 ,630800, 641149 , 643866 , 645298 , 646182 , 654187 , 663188 ,665197, 665656 , 676848 , 679682 , 679684 , 679686 , 679687 , 679689 , 679690 , 679691 , 680278 , 684903 
TEST=mac bots on GPU FYI waterfall
TBR=kbr@chromium.org,kainino@chromium.org
NOTRY=true
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel

Review-Url: https://codereview.chromium.org/2931993002
Cr-Commit-Position: refs/heads/master@{#478121}

[modify] https://crrev.com/1733d120eb79e2d8d49b18892e60ee1297f646f7/content/test/gpu/gpu_tests/webgl2_conformance_expectations.py

Components: -Internals>GPU>WebGL Blink>WebGL

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