Mac AMD readPixels from RGB buffer into PIXEL_PACK_BUFFER returns wrong alpha value |
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Issue descriptionAccording to spec, 255 should be returned of source does not have alpha channel, on MacOSX with AMD GPU, 0 is returned.
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Sep 13 2016
Also, the full test for this bug is: https://www.khronos.org/registry/webgl/sdk/tests/deqp/functional/gles3/pixelbufferobject.html
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Sep 13 2016
Filed as Radar 28270713.
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Nov 8 2016
Fixed on OSX 10.12.2 Beta (16C32f) on Mac Retina AMD
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Dec 19 2016
I resolved the radar.
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Dec 19 2016
Thanks Mo!
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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
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Jun 20 2017
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Comment 1 by kbr@chromium.org
, Sep 13 2016