Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: e2cab1a5b940053eff2db407b023974325f73556
https://github.com/WebKit/WebKit/commit/e2cab1a5b940053eff2db407b023974325f73556
Author: Mike Wyrzykowski <[email protected]>
Date: 2026-07-07 (Tue, 07 Jul 2026)
Changed paths:
A
LayoutTests/fast/webgpu/offscreen-canvas-rgba16float-transparency-expected.html
A LayoutTests/fast/webgpu/offscreen-canvas-rgba16float-transparency.html
M
Source/WebCore/Modules/WebGPU/Implementation/WebGPUCompositorIntegrationImpl.cpp
M
Source/WebCore/Modules/WebGPU/Implementation/WebGPUCompositorIntegrationImpl.h
M Source/WebCore/platform/graphics/cocoa/IOSurface.h
M Source/WebCore/platform/graphics/cocoa/IOSurface.mm
Log Message:
-----------
[WebGPU] RGBA16Float offscreen canvas appears opaque
https://bugs.webkit.org/show_bug.cgi?id=318726
rdar://181531622
Reviewed by Tadeu Zagallo.
Unlike BGRX - BGRA, RGBA16Float doesn't encode the presence of the alpha
channel into
the IOSurface format, so we need to consult the canvas behavior when reading
back the contents.
Test: fast/webgpu/offscreen-canvas-rgba16float-transparency.html
*
LayoutTests/fast/webgpu/offscreen-canvas-rgba16float-transparency-expected.html:
Added.
* LayoutTests/fast/webgpu/offscreen-canvas-rgba16float-transparency.html: Added.
*
Source/WebCore/Modules/WebGPU/Implementation/WebGPUCompositorIntegrationImpl.cpp:
(WebCore::WebGPU::CompositorIntegrationImpl::recreateRenderBuffers):
(WebCore::WebGPU::CompositorIntegrationImpl::withDisplayBufferAsNativeImage):
*
Source/WebCore/Modules/WebGPU/Implementation/WebGPUCompositorIntegrationImpl.h:
* Source/WebCore/platform/graphics/cocoa/IOSurface.h:
* Source/WebCore/platform/graphics/cocoa/IOSurface.mm:
(WebCore::IOSurface::createNativeImage):
Canonical link: https://commits.webkit.org/316628@main
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