Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: b9e5b9ff4fe94aebdd273846831ee4fc7ff3fda3
      
https://github.com/WebKit/WebKit/commit/b9e5b9ff4fe94aebdd273846831ee4fc7ff3fda3
  Author: Kimmo Kinnunen <[email protected]>
  Date:   2023-05-12 (Fri, 12 May 2023)

  Changed paths:
    M Source/WebCore/platform/ScrollbarsController.h
    M Source/WebCore/platform/graphics/cocoa/IOSurface.h
    M Source/WebCore/platform/graphics/cocoa/IOSurface.mm
    M Source/WebKit/GPUProcess/graphics/RemoteRenderingBackend.cpp
    M Source/WebKit/Shared/WebCoreArgumentCoders.serialization.in
    M Source/WebKit/SourcesCocoa.txt
    M Source/WebKit/WebKit.xcodeproj/project.pbxproj
    M Source/WebKit/WebProcess/GPU/graphics/RemoteDisplayListRecorderProxy.cpp
    A 
Source/WebKit/WebProcess/GPU/graphics/cocoa/ImageBufferShareableMappedIOSurfaceBitmapBackend.cpp
    A 
Source/WebKit/WebProcess/GPU/graphics/cocoa/ImageBufferShareableMappedIOSurfaceBitmapBackend.h
    M 
Source/WebKit/WebProcess/WebPage/RemoteLayerTree/RemoteScrollbarsController.h

  Log Message:
  -----------
  Cocoa Small RemoteLayerBackingStores should be drawn with software
https://bugs.webkit.org/show_bug.cgi?id=253447
rdar://problem/106651668

Reviewed by Simon Fraser.

Add a specific GPUP side backend for ImageBitmaps used for LayerBacking
purposes, e.g. RemoteLayerBackingStore buffers. The buffers are drawn
to with software rasterization.

Fixes a bug in RemoteDisplayListRecorderProxy::createImageBuffer where
intermediate ImageBuffers for filters would be created as Layer
rendering purpose, where as the Layer purpose is supposed to be only
for the Layer backing stores.

Fixes a bug in RenderingPurpose where missing ShareableLocalSnapshot
was not part of the enum serialization, making the serialization
incorrect.

* Source/WebCore/platform/ScrollbarsController.h:
* Source/WebCore/platform/graphics/cocoa/IOSurface.h:
* Source/WebCore/platform/graphics/cocoa/IOSurface.mm:
(WebCore::IOSurface::createBitmapPlatformContext):
* Source/WebKit/GPUProcess/graphics/RemoteRenderingBackend.cpp:
(WebKit::isSmallLayerBacking):
(WebKit::RemoteRenderingBackend::createImageBufferWithQualifiedIdentifier):
(WebKit::RemoteRenderingBackend::prepareLayerBuffersForDisplay):
* Source/WebKit/Shared/WebCoreArgumentCoders.serialization.in:
* Source/WebKit/SourcesCocoa.txt:
* Source/WebKit/WebKit.xcodeproj/project.pbxproj:
* Source/WebKit/WebProcess/GPU/graphics/RemoteDisplayListRecorderProxy.cpp:
(WebKit::RemoteDisplayListRecorderProxy::createImageBuffer const):
* 
Source/WebKit/WebProcess/GPU/graphics/cocoa/ImageBufferShareableMappedIOSurfaceBitmapBackend.cpp:
 Added.
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::create):
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::ImageBufferShareableMappedIOSurfaceBitmapBackend):
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::createBackendHandle 
const):
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::context):
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::setOwnershipIdentity):
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::backendSize const):
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::bytesPerRow const):
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::copyNativeImage):
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::copyNativeImageForDrawing):
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::sinkIntoNativeImage):
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::isInUse const):
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::releaseGraphicsContext):
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::setVolatile):
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::setNonVolatile):
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::volatilityState 
const):
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::setVolatilityState):
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::transferToNewContext):
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::getPixelBuffer):
(WebKit::ImageBufferShareableMappedIOSurfaceBitmapBackend::putPixelBuffer):
* 
Source/WebKit/WebProcess/GPU/graphics/cocoa/ImageBufferShareableMappedIOSurfaceBitmapBackend.h:
 Added.
* Source/WebKit/WebProcess/WebPage/RemoteLayerTree/RemoteScrollbarsController.h:

Canonical link: https://commits.webkit.org/264004@main


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