Attachment 360650 Details for Bug 194048 – Patch for landing

[patch] Patch for landing

bug-194048-20190130170338.patch (text/plain), 33.53 KB, created by Justin Fan on 2019-01-30 17:03:39 PST

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Creator: Justin Fan

Created: 2019-01-30 17:03:39 PST

Size: 33.53 KB

patch

obsolete

>Subversion Revision: 240686
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index 5ed3184efc2897dbe9a8cfdd0b131176d6e5a6ee..77fd55d9db90f6b49f7fb0f582fe54a345654842 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,49 @@
>+2019-01-30  Justin Fan  <justin_fan@apple.com>
>+
>+        [WebGPU] Support GPUDepthStencilStateDescriptor
>+        https://bugs.webkit.org/show_bug.cgi?id=194048
>+        <rdar://problem/46289645>
>+
>+        Reviewed by Dean Jackson.
>+
>+        Implement GPUDepthStencilStateDescriptor to specify a MTLDepthStencilState that is set on the command encoder.
>+
>+        Existing tests cover changes to pipeline. Behavior does not change as DepthStencilState has no effect 
>+        without a depth texture attached.
>+
>+        New interface files added:
>+        * Modules/webgpu/GPUCompareFunction.idl:
>+        * Modules/webgpu/GPUDepthStencilStateDescriptor.idl:
>+        * platform/graphics/gpu/GPUCompareFunction.h:
>+        * platform/graphics/gpu/GPUDepthStencilStateDescriptor.h:
>+
>+        Modifications:
>+        * Modules/webgpu/WebGPUDevice.cpp: Include depthStencilState when creating pipeline.
>+        (WebCore::WebGPUDevice::createRenderPipeline const):
>+        * Modules/webgpu/WebGPURenderPipelineDescriptor.h: Add depthStencilState to the descriptor.
>+        * Modules/webgpu/WebGPURenderPipelineDescriptor.idl: Ditto.
>+        * platform/graphics/gpu/GPURenderPipeline.h: Ditto.
>+        (WebCore::GPURenderPipeline::depthStencilState const): Getter.
>+        (WebCore::GPURenderPipeline::platformRenderPipeline const):
>+        * platform/graphics/gpu/GPURenderPipelineDescriptor.h: Update constructor to take depthStencilState.
>+        (WebCore::GPURenderPipelineDescriptor::GPURenderPipelineDescriptor):
>+        * platform/graphics/gpu/cocoa/GPURenderPassEncoderMetal.mm: Setting pipeline also sets the included depthStencilState.
>+        (WebCore::GPURenderPassEncoder::setPipeline):
>+        * platform/graphics/gpu/cocoa/GPURenderPipelineMetal.mm: Convert DepthStencilStateDescriptor to MTLDepthStencilState.
>+        (WebCore::validateAndConvertDepthCompareFunctionToMtl):
>+        (WebCore::tryCreateMtlDepthStencilState):
>+        (WebCore::tryCreateMtlRenderPipelineState): Refactored logic out of GPURenderPipeline::create.
>+        (WebCore::GPURenderPipeline::create):
>+        (WebCore::GPURenderPipeline::GPURenderPipeline):
>+
>+        Added symbols for CompareFunction, DepthStencilStateDescriptor to the project:
>+        * CMakeLists.txt:
>+        * DerivedSources.make:
>+        * Sources.txt:
>+        * WebCore.xcodeproj/project.pbxproj:
>+
>+        * Modules/webgpu/WebGPUDevice.idl: Cleaned up IDL to match current version.
>+
> 2019-01-29  Simon Fraser  <simon.fraser@apple.com>
> 
>         REGRESSION(r240553): [iOS] Crash in ScrollingTree::updateTreeFromStateNode when attempting to log in to icloud.com
>diff --git a/Source/WebCore/CMakeLists.txt b/Source/WebCore/CMakeLists.txt
>index 482cf6fd59cc39ad312680182f807f8696695700..d355e7b2a0695c3175c3dad6e65526137ee2c11a 100644
>--- a/Source/WebCore/CMakeLists.txt
>+++ b/Source/WebCore/CMakeLists.txt
>@@ -462,6 +462,8 @@ set(WebCore_NON_SVG_IDL_FILES
>     Modules/webdriver/NavigatorWebDriver.idl
> 
>     Modules/webgpu/DOMWindowWebGPU.idl
>+    Modules/webgpu/GPUCompareFunction.idl
>+    Modules/webgpu/GPUDepthStencilStateDescriptor.idl
>     Modules/webgpu/WebGPU.idl
>     Modules/webgpu/WebGPUAdapter.idl
>     Modules/webgpu/WebGPUAdapterDescriptor.idl
>diff --git a/Source/WebCore/DerivedSources.make b/Source/WebCore/DerivedSources.make
>index cd6757664eec5e0c609ab2f69120c84aae9fd687..01d93ee89af0c94bda2cf51aab979e6401cb5faf 100644
>--- a/Source/WebCore/DerivedSources.make
>+++ b/Source/WebCore/DerivedSources.make
>@@ -372,6 +372,8 @@ JS_BINDING_IDLS = \
>     $(WebCore)/Modules/webdatabase/SQLTransactionErrorCallback.idl \
>     $(WebCore)/Modules/webdriver/NavigatorWebDriver.idl \
>     $(WebCore)/Modules/webgpu/DOMWindowWebGPU.idl \
>+    $(WebCore)/Modules/webgpu/GPUCompareFunction.idl \
>+    $(WebCore)/Modules/webgpu/GPUDepthStencilStateDescriptor.idl \
>     $(WebCore)/Modules/webgpu/WebGPU.idl \
>     $(WebCore)/Modules/webgpu/WebGPUAdapter.idl \
>     $(WebCore)/Modules/webgpu/WebGPUAdapterDescriptor.idl \
>diff --git a/Source/WebCore/Modules/webgpu/GPUCompareFunction.idl b/Source/WebCore/Modules/webgpu/GPUCompareFunction.idl
>new file mode 100644
>index 0000000000000000000000000000000000000000..3292259993e2cf799db82c3cdf0846a97633f57c
>--- /dev/null
>+++ b/Source/WebCore/Modules/webgpu/GPUCompareFunction.idl
>@@ -0,0 +1,39 @@
>+/*
>+ * Copyright (C) 2019 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+// https://github.com/gpuweb/gpuweb/blob/master/design/sketch.webidl
>+
>+[
>+    Conditional=WEBGPU,
>+    EnabledAtRuntime=WebGPU
>+] enum GPUCompareFunction {
>+    "never",
>+    "less",
>+    "equal",
>+    "less-equal",
>+    "greater",
>+    "not-equal",
>+    "greater-equal",
>+    "always"
>+};
>diff --git a/Source/WebCore/Modules/webgpu/GPUDepthStencilStateDescriptor.idl b/Source/WebCore/Modules/webgpu/GPUDepthStencilStateDescriptor.idl
>new file mode 100644
>index 0000000000000000000000000000000000000000..94745b215f14a5df3958a1c79ac1756744aa4a36
>--- /dev/null
>+++ b/Source/WebCore/Modules/webgpu/GPUDepthStencilStateDescriptor.idl
>@@ -0,0 +1,41 @@
>+/*
>+ * Copyright (C) 2019 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+// https://github.com/gpuweb/gpuweb/blob/master/design/sketch.webidl
>+
>+[
>+    Conditional=WEBGPU,
>+    EnabledAtRuntime=WebGPU
>+] dictionary GPUDepthStencilStateDescriptor {
>+    boolean depthWriteEnabled;
>+    GPUCompareFunction depthCompare;
>+
>+/* Not Yet Implemented
>+    GPUStencilStateFaceDescriptor stencilFront;
>+    GPUStencilStateFaceDescriptor stencilBack;
>+
>+    u32 stencilReadMask;
>+    u32 stencilWriteMask;
>+*/
>+};
>diff --git a/Source/WebCore/Modules/webgpu/WebGPUDevice.cpp b/Source/WebCore/Modules/webgpu/WebGPUDevice.cpp
>index 70adec8306fea23377528dade7bb88ab2c2bd072..0d98e13db3f78815a3d41f9427beee525fca3391 100644
>--- a/Source/WebCore/Modules/webgpu/WebGPUDevice.cpp
>+++ b/Source/WebCore/Modules/webgpu/WebGPUDevice.cpp
>@@ -165,7 +165,7 @@ RefPtr<WebGPURenderPipeline> WebGPUDevice::createRenderPipeline(WebGPURenderPipe
>         return nullptr;
>     }
> 
>-    if (auto pipeline = m_device->createRenderPipeline(GPURenderPipelineDescriptor { WTFMove(pipelineLayout), WTFMove(*vertexStage), WTFMove(*fragmentStage), descriptor.primitiveTopology, WTFMove(descriptor.inputState) }))
>+    if (auto pipeline = m_device->createRenderPipeline(GPURenderPipelineDescriptor { WTFMove(pipelineLayout), WTFMove(*vertexStage), WTFMove(*fragmentStage), descriptor.primitiveTopology, WTFMove(descriptor.depthStencilState), WTFMove(descriptor.inputState) }))
>         return WebGPURenderPipeline::create(pipeline.releaseNonNull());
>     return nullptr;
> }
>diff --git a/Source/WebCore/Modules/webgpu/WebGPUDevice.idl b/Source/WebCore/Modules/webgpu/WebGPUDevice.idl
>index f2b6774cd0de947bb54e849266f76abf8d7430ee..2c86b3c80b0b1b28495db49a8efaf9fa1dc0d714 100644
>--- a/Source/WebCore/Modules/webgpu/WebGPUDevice.idl
>+++ b/Source/WebCore/Modules/webgpu/WebGPUDevice.idl
>@@ -29,8 +29,6 @@
>     EnabledAtRuntime=WebGPU,
>     ImplementationLacksVTable
> ] interface WebGPUDevice {
>-    // readonly attribute WebGPUExtensions extensions;
>-    // readonly attribute WebGPULimits limits;
>     readonly attribute WebGPUAdapter adapter;
> 
>     WebGPUBuffer createBuffer(WebGPUBufferDescriptor descriptor);
>@@ -48,18 +46,15 @@
>     WebGPUQueue getQueue();
> 
>     // FIXME: Unimplemented.
>+    // readonly attribute WebGPUExtensions extensions;
>+    // readonly attribute WebGPULimits limits;
>+
>     // WebGPUTexture createTexture(WebGPUTextureDescriptor descriptor);
>     // WebGPUSampler createSampler(WebGPUSamplerDescriptor descriptor);
>-    //
>-    // WebGPUBindGroup createBindGroup(WebGPUBindGroupDescriptor descriptor);
>-    //
>-    // WebGPUBlendState createBlendState(WebGPUBlendStateDescriptor descriptor);
>-    // WebGPUDepthStencilState createDepthStencilState(WebGPUDepthStencilStateDescriptor descriptor);
>-    // WebGPUInputState createInputState(WebGPUInputStateDescriptor descriptor);
>-    // WebGPUAttachmentState createAttachmentState(WebGPUAttachmentStateDescriptor descriptor);
>+
>     // WebGPUComputePipeline createComputePipeline(WebGPUComputePipelineDescriptor descriptor);
>     // WebGPUFence createFence(WebGPUFenceDescriptor descriptor);
>-    //
>+
>     // attribute WebGPULogCallback onLog;
>     // WebGPUObjectStatusQuery getObjectStatus(StatusableObject statusableObject);
> };
>diff --git a/Source/WebCore/Modules/webgpu/WebGPURenderPipelineDescriptor.h b/Source/WebCore/Modules/webgpu/WebGPURenderPipelineDescriptor.h
>index c12f758a7bfce89aaa14c61d205cef93fd9a034b..04ea6882be811a6582cfd58a1d31cfecea38610c 100644
>--- a/Source/WebCore/Modules/webgpu/WebGPURenderPipelineDescriptor.h
>+++ b/Source/WebCore/Modules/webgpu/WebGPURenderPipelineDescriptor.h
>@@ -27,6 +27,7 @@
> 
> #if ENABLE(WEBGPU)
> 
>+#include "GPUDepthStencilStateDescriptor.h"
> #include "GPURenderPipelineDescriptor.h"
> #include "WebGPUInputStateDescriptor.h"
> #include "WebGPUPipelineDescriptorBase.h"
>@@ -40,6 +41,7 @@ struct WebGPURenderPipelineDescriptor : WebGPUPipelineDescriptorBase {
>     WebGPUPipelineStageDescriptor vertexStage;
>     WebGPUPipelineStageDescriptor fragmentStage;
>     PrimitiveTopology primitiveTopology;
>+    GPUDepthStencilStateDescriptor depthStencilState;
>     WebGPUInputStateDescriptor inputState;
> };
> 
>diff --git a/Source/WebCore/Modules/webgpu/WebGPURenderPipelineDescriptor.idl b/Source/WebCore/Modules/webgpu/WebGPURenderPipelineDescriptor.idl
>index fddb628dfa40b9052f79892185608024ee390955..12bd71d373949aa4bf85eed692d3e0c0ba7d8eb9 100644
>--- a/Source/WebCore/Modules/webgpu/WebGPURenderPipelineDescriptor.idl
>+++ b/Source/WebCore/Modules/webgpu/WebGPURenderPipelineDescriptor.idl
>@@ -40,10 +40,10 @@ enum WebGPUPrimitiveTopology {
>     WebGPUPipelineStageDescriptor fragmentStage;
> 
>     WebGPUPrimitiveTopology primitiveTopology;
>+    GPUDepthStencilStateDescriptor depthStencilState;
>     WebGPUInputStateDescriptor inputState;
> /* To Be Implemented:
>     sequence<WebGPUBlendStateDescriptor> blendStates;
>-    WebGPUDepthStencilStateDescriptor depthStencilState;
>     WebGPUAttachmentsStateDescriptor attachmentsState;
>     // TODO other properties
> */
>diff --git a/Source/WebCore/Sources.txt b/Source/WebCore/Sources.txt
>index e073841a69457c07fa757a956b33a2ed8bc56cd7..c27d917330942bd808df22dd97662240c1ac5941 100644
>--- a/Source/WebCore/Sources.txt
>+++ b/Source/WebCore/Sources.txt
>@@ -2762,6 +2762,8 @@ JSFillMode.cpp
> JSFocusEvent.cpp
> JSFontFace.cpp
> JSFontFaceSet.cpp
>+JSGPUCompareFunction.cpp
>+JSGPUDepthStencilStateDescriptor.cpp
> JSGainNode.cpp
> JSGeolocation.cpp
> JSGeoposition.cpp
>@@ -3303,8 +3305,8 @@ JSWebGPUBuffer.cpp
> JSWebGPUBufferBinding.cpp
> JSWebGPUBufferDescriptor.cpp
> JSWebGPUBufferUsage.cpp
>-JSWebGPUCommandBuffer.cpp
> JSWebGPUColor.cpp
>+JSWebGPUCommandBuffer.cpp
> JSWebGPUDevice.cpp
> JSWebGPUIndexFormat.cpp
> JSWebGPUInputStateDescriptor.cpp
>diff --git a/Source/WebCore/WebCore.xcodeproj/project.pbxproj b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>index e3c75e8c8633574d89e84bc0abbf1f1038abd30c..6ead73c98949762e2254002883780adf4e7a6a9b 100644
>--- a/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>+++ b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>@@ -1608,7 +1608,7 @@
> 		51F645691F4539B900B54DED /* ServiceWorkerJobData.h in Headers */ = {isa = PBXBuildFile; fileRef = 51F645661F45399F00B54DED /* ServiceWorkerJobData.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		51F6456A1F4539C000B54DED /* ServiceWorkerJobType.h in Headers */ = {isa = PBXBuildFile; fileRef = 51F645651F45399F00B54DED /* ServiceWorkerJobType.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		51F645971F4A686F00B54DED /* SWServerRegistration.h in Headers */ = {isa = PBXBuildFile; fileRef = 51F645941F4A684F00B54DED /* SWServerRegistration.h */; settings = {ATTRIBUTES = (Private, ); }; };
>-		51F645D51FECDBCE00B54DED /* Process.h in Headers */ = {isa = PBXBuildFile; fileRef = 51F645D31FECDBC800B54DED /* Process.h */; settings = {ATTRIBUTES = (Private, ); }; };
>+		51F645D51FECDBCE00B54DED /* ProcessIdentifier.h in Headers */ = {isa = PBXBuildFile; fileRef = 51F645D31FECDBC800B54DED /* ProcessIdentifier.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		51F645E01FF4594E00B54DED /* MessagePortIdentifier.h in Headers */ = {isa = PBXBuildFile; fileRef = 51F645DE1FF4594B00B54DED /* MessagePortIdentifier.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		51F798F01BE880E7008AE491 /* IDBIndexInfo.h in Headers */ = {isa = PBXBuildFile; fileRef = 51F798EC1BE880D3008AE491 /* IDBIndexInfo.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		51F886C01F32923100C193EF /* JSNavigatorServiceWorker.h in Headers */ = {isa = PBXBuildFile; fileRef = 51F886BF1F32920700C193EF /* JSNavigatorServiceWorker.h */; };
>@@ -14012,6 +14012,10 @@
> 		D03211CF21AC954E00763CF2 /* GPUProgrammablePassEncoder.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GPUProgrammablePassEncoder.h; sourceTree = "<group>"; };
> 		D03211D021AC954F00763CF2 /* GPURenderPassDescriptor.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GPURenderPassDescriptor.h; sourceTree = "<group>"; };
> 		D036DD8D208FFC0C00F9F4B2 /* WebGLCompressedTextureASTC.idl */ = {isa = PBXFileReference; lastKnownFileType = text; path = WebGLCompressedTextureASTC.idl; sourceTree = "<group>"; };
>+		D03C849A21FFC6670002227F /* GPUDepthStencilStateDescriptor.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GPUDepthStencilStateDescriptor.h; sourceTree = "<group>"; };
>+		D03C849C21FFC7FC0002227F /* GPUCompareFunction.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GPUCompareFunction.h; sourceTree = "<group>"; };
>+		D03C849E21FFCF000002227F /* GPUCompareFunction.idl */ = {isa = PBXFileReference; lastKnownFileType = text; path = GPUCompareFunction.idl; sourceTree = "<group>"; };
>+		D03C84A221FFD7230002227F /* GPUDepthStencilStateDescriptor.idl */ = {isa = PBXFileReference; lastKnownFileType = text; path = GPUDepthStencilStateDescriptor.idl; sourceTree = "<group>"; };
> 		D045AD1D2168230B000A6E9B /* WebMetalLayer.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = WebMetalLayer.mm; sourceTree = "<group>"; };
> 		D045AD1E21682449000A6E9B /* JSWebMetalRenderPassAttachmentDescriptorCustom.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; path = JSWebMetalRenderPassAttachmentDescriptorCustom.cpp; sourceTree = "<group>"; };
> 		D045AD1F21682449000A6E9B /* JSWebMetalRenderingContextCustom.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; path = JSWebMetalRenderingContextCustom.cpp; sourceTree = "<group>"; };
>@@ -18443,6 +18447,8 @@
> 				D0D8648721B64CAA003C983C /* GPUBufferDescriptor.h */,
> 				D001D9AB21B0C7BF0023B9BC /* GPUColor.h */,
> 				312FF8BD21A4C2F100EB199D /* GPUCommandBuffer.h */,
>+				D03C849C21FFC7FC0002227F /* GPUCompareFunction.h */,
>+				D03C849A21FFC6670002227F /* GPUDepthStencilStateDescriptor.h */,
> 				312FF8BF21A4C2F100EB199D /* GPUDevice.cpp */,
> 				312FF8BE21A4C2F100EB199D /* GPUDevice.h */,
> 				D0D8649921BA1B1F003C983C /* GPUInputStateDescriptor.h */,
>@@ -26023,6 +26029,8 @@
> 				D00F5941216ECC7A000D71DB /* DOMWindowWebGPU.cpp */,
> 				D00F5940216ECC7A000D71DB /* DOMWindowWebGPU.h */,
> 				D00F5942216ECC7A000D71DB /* DOMWindowWebGPU.idl */,
>+				D03C849E21FFCF000002227F /* GPUCompareFunction.idl */,
>+				D03C84A221FFD7230002227F /* GPUDepthStencilStateDescriptor.idl */,
> 				D00F5947216EFE54000D71DB /* WebGPU.cpp */,
> 				D00F5946216EFE54000D71DB /* WebGPU.h */,
> 				D00F5948216EFE54000D71DB /* WebGPU.idl */,
>@@ -31047,6 +31055,7 @@
> 				BCBB8AB913F1AFB000734DF0 /* PODInterval.h in Headers */,
> 				BCBB8ABA13F1AFB000734DF0 /* PODIntervalTree.h in Headers */,
> 				BCBB8ABB13F1AFB000734DF0 /* PODRedBlackTree.h in Headers */,
>+				71B5AB2621F1D9F400376E5C /* PointerCaptureController.h in Headers */,
> 				317D3FF3215599F40034E3B9 /* PointerEvent.h in Headers */,
> 				B2B1F7170D00CAA8004AEA64 /* PointerEventsHitRules.h in Headers */,
> 				3FF813A71DBA8640009BF001 /* PointerLockController.h in Headers */,
>@@ -31071,7 +31080,7 @@
> 				A10DBF4718F92317000D70C6 /* PreviewLoaderClient.h in Headers */,
> 				E4605FEC2166480900E53046 /* PrewarmInformation.h in Headers */,
> 				B71FE6DF11091CB300DAEF77 /* PrintContext.h in Headers */,
>-				51F645D51FECDBCE00B54DED /* Process.h in Headers */,
>+				51F645D51FECDBCE00B54DED /* ProcessIdentifier.h in Headers */,
> 				A8EA7EBC0A1945D000A8EF5F /* ProcessingInstruction.h in Headers */,
> 				E42050172141901B0066EF3B /* ProcessWarming.h in Headers */,
> 				E44613EC0CD681B500FADA75 /* ProgressEvent.h in Headers */,
>@@ -31968,7 +31977,6 @@
> 				26E944DD1AC4B4EA007B85B5 /* Term.h in Headers */,
> 				6550B6A6099DF0270090D781 /* Text.h in Headers */,
> 				93309E17099E64920056E581 /* TextAffinity.h in Headers */,
>-				71B5AB2621F1D9F400376E5C /* PointerCaptureController.h in Headers */,
> 				CE7B2DB51586ABAD0098B3FA /* TextAlternativeWithRange.h in Headers */,
> 				0F54DCE61881051D003EEDBB /* TextAutoSizing.h in Headers */,
> 				B2C3DA340D006C1D00EF6F26 /* TextBoundaries.h in Headers */,
>@@ -32824,7 +32832,6 @@
> 			buildActionMask = 2147483647;
> 			files = (
> 				A9787CB41F5F5C6600C551C6 /* AccessibilityMediaObject.cpp in Sources */,
>-				6B0A07F321FA4B5C00D57391 /* AdClickAttribution.cpp in Sources */,
> 				31A795C81888BCB500382F90 /* ANGLEInstancedArrays.cpp in Sources */,
> 				490707E61219C04300D90E51 /* ANGLEWebKitBridge.cpp in Sources */,
> 				CD0EEE0E14743F39003EAFA2 /* AudioDestinationIOS.cpp in Sources */,
>diff --git a/Source/WebCore/platform/graphics/gpu/GPUCompareFunction.h b/Source/WebCore/platform/graphics/gpu/GPUCompareFunction.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..dde9f65c740f9af808e636e38eef9754f5923e67
>--- /dev/null
>+++ b/Source/WebCore/platform/graphics/gpu/GPUCompareFunction.h
>@@ -0,0 +1,45 @@
>+/*
>+ * Copyright (C) 2019 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#pragma once
>+
>+#if ENABLE(WEBGPU)
>+
>+namespace WebCore {
>+
>+enum class GPUCompareFunction {
>+    Never,
>+    Less,
>+    Equal,
>+    LessEqual,
>+    Greater,
>+    NotEqual,
>+    GreaterEqual,
>+    Always
>+};
>+
>+} // namespace WebCore
>+
>+#endif // ENABLE(WEBGPU)
>diff --git a/Source/WebCore/platform/graphics/gpu/GPUDepthStencilStateDescriptor.h b/Source/WebCore/platform/graphics/gpu/GPUDepthStencilStateDescriptor.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..4a47d03b362a688b2d7910c7fb179bb1e99e06e4
>--- /dev/null
>+++ b/Source/WebCore/platform/graphics/gpu/GPUDepthStencilStateDescriptor.h
>@@ -0,0 +1,41 @@
>+/*
>+ * Copyright (C) 2019 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#pragma once
>+
>+#if ENABLE(WEBGPU)
>+
>+#include "GPUCompareFunction.h"
>+
>+namespace WebCore {
>+
>+struct GPUDepthStencilStateDescriptor {
>+    bool depthWriteEnabled;
>+    GPUCompareFunction depthCompare;
>+};
>+
>+} // namespace WebCore
>+
>+#endif // ENABLE(WEBGPU)
>diff --git a/Source/WebCore/platform/graphics/gpu/GPURenderPipeline.h b/Source/WebCore/platform/graphics/gpu/GPURenderPipeline.h
>index b302e342e77309a4aa2d9277b80f1735dba6d871..5b5b9c0fd601b6765a82fbc39b2072877bdce126 100644
>--- a/Source/WebCore/platform/graphics/gpu/GPURenderPipeline.h
>+++ b/Source/WebCore/platform/graphics/gpu/GPURenderPipeline.h
>@@ -28,12 +28,14 @@
> #if ENABLE(WEBGPU)
> 
> #include "GPURenderPipelineDescriptor.h"
>-
> #include <wtf/RefCounted.h>
> #include <wtf/RefPtr.h>
> #include <wtf/RetainPtr.h>
> 
>+#if USE(METAL)
>+OBJC_PROTOCOL(MTLDepthStencilState);
> OBJC_PROTOCOL(MTLRenderPipelineState);
>+#endif // USE(METAL)
> 
> namespace WebCore {
> 
>@@ -47,13 +49,18 @@ class GPURenderPipeline : public RefCounted<GPURenderPipeline> {
> public:
>     static RefPtr<GPURenderPipeline> create(const GPUDevice&, GPURenderPipelineDescriptor&&);
> 
>+#if USE(METAL)
>+    MTLDepthStencilState *depthStencilState() const { return m_depthStencilState.get(); }
>+#endif
>     PlatformRenderPipeline* platformRenderPipeline() const { return m_platformRenderPipeline.get(); }
>-
>     PrimitiveTopology primitiveTopology() const { return m_primitiveTopology; }
> 
> private:
>-    GPURenderPipeline(PlatformRenderPipelineSmartPtr&&, GPURenderPipelineDescriptor&&);
>+#if USE(METAL)
>+    GPURenderPipeline(RetainPtr<MTLDepthStencilState>&&, PlatformRenderPipelineSmartPtr&&, GPURenderPipelineDescriptor&&);
> 
>+    RetainPtr<MTLDepthStencilState> m_depthStencilState;
>+#endif // USE(METAL)
>     PlatformRenderPipelineSmartPtr m_platformRenderPipeline;
>     RefPtr<GPUPipelineLayout> m_layout;
>     PrimitiveTopology m_primitiveTopology;
>diff --git a/Source/WebCore/platform/graphics/gpu/GPURenderPipelineDescriptor.h b/Source/WebCore/platform/graphics/gpu/GPURenderPipelineDescriptor.h
>index 3216833d907cf248d397b4dc8238d451153ad4e5..627531b76bb27ec6d25bf46b38ba1bde94a76c05 100644
>--- a/Source/WebCore/platform/graphics/gpu/GPURenderPipelineDescriptor.h
>+++ b/Source/WebCore/platform/graphics/gpu/GPURenderPipelineDescriptor.h
>@@ -27,6 +27,7 @@
> 
> #if ENABLE(WEBGPU)
> 
>+#include "GPUDepthStencilStateDescriptor.h"
> #include "GPUInputStateDescriptor.h"
> #include "GPUPipelineDescriptorBase.h"
> #include "GPUPipelineStageDescriptor.h"
>@@ -44,11 +45,12 @@ struct GPURenderPipelineDescriptor : GPUPipelineDescriptorBase {
>         TriangleStrip
>     };
> 
>-    GPURenderPipelineDescriptor(RefPtr<GPUPipelineLayout>&& layout, GPUPipelineStageDescriptor&& vertex, GPUPipelineStageDescriptor&& fragment, PrimitiveTopology topology, GPUInputStateDescriptor&& input)
>+    GPURenderPipelineDescriptor(RefPtr<GPUPipelineLayout>&& layout, GPUPipelineStageDescriptor&& vertex, GPUPipelineStageDescriptor&& fragment, PrimitiveTopology topology, GPUDepthStencilStateDescriptor&& depth, GPUInputStateDescriptor&& input)
>         : GPUPipelineDescriptorBase { WTFMove(layout) }
>         , vertexStage(WTFMove(vertex))
>         , fragmentStage(WTFMove(fragment))
>         , primitiveTopology(topology)
>+        , depthStencilState(WTFMove(depth))
>         , inputState(WTFMove(input))
>     {
>     }
>@@ -56,6 +58,7 @@ struct GPURenderPipelineDescriptor : GPUPipelineDescriptorBase {
>     GPUPipelineStageDescriptor vertexStage;
>     GPUPipelineStageDescriptor fragmentStage;
>     PrimitiveTopology primitiveTopology;
>+    GPUDepthStencilStateDescriptor depthStencilState;
>     GPUInputStateDescriptor inputState;
> };
> 
>diff --git a/Source/WebCore/platform/graphics/gpu/cocoa/GPURenderPassEncoderMetal.mm b/Source/WebCore/platform/graphics/gpu/cocoa/GPURenderPassEncoderMetal.mm
>index 594a3370a8449f1d7b9f2d78fa82f7f99267247e..aec40e479d71a8c8082c609b6d231c516c28fdb9 100644
>--- a/Source/WebCore/platform/graphics/gpu/cocoa/GPURenderPassEncoderMetal.mm
>+++ b/Source/WebCore/platform/graphics/gpu/cocoa/GPURenderPassEncoderMetal.mm
>@@ -80,7 +80,15 @@ PlatformProgrammablePassEncoder *GPURenderPassEncoder::platformPassEncoder() con
> 
> void GPURenderPassEncoder::setPipeline(Ref<GPURenderPipeline>&& pipeline)
> {
>+    BEGIN_BLOCK_OBJC_EXCEPTIONS;
>+
>+    if (pipeline->depthStencilState())
>+        [m_platformRenderPassEncoder setDepthStencilState:pipeline->depthStencilState()];
>+
>     [m_platformRenderPassEncoder setRenderPipelineState:pipeline->platformRenderPipeline()];
>+
>+    END_BLOCK_OBJC_EXCEPTIONS;
>+
>     m_pipeline = WTFMove(pipeline);
> }
> 
>diff --git a/Source/WebCore/platform/graphics/gpu/cocoa/GPURenderPipelineMetal.mm b/Source/WebCore/platform/graphics/gpu/cocoa/GPURenderPipelineMetal.mm
>index b4e8760b5cccd21282414e09eaf56b5c0f719268..58860eba5c8bb70d0ecf276815e2b826cf5b668d 100644
>--- a/Source/WebCore/platform/graphics/gpu/cocoa/GPURenderPipelineMetal.mm
>+++ b/Source/WebCore/platform/graphics/gpu/cocoa/GPURenderPipelineMetal.mm
>@@ -36,6 +36,75 @@
> 
> namespace WebCore {
> 
>+static Optional<MTLCompareFunction> validateAndConvertDepthCompareFunctionToMtl(GPUCompareFunction func)
>+{
>+    switch (func) {
>+    case GPUCompareFunction::Never:
>+        return MTLCompareFunctionNever;
>+    case GPUCompareFunction::Less:
>+        return MTLCompareFunctionLess;
>+    case GPUCompareFunction::Equal:
>+        return MTLCompareFunctionEqual;
>+    case GPUCompareFunction::LessEqual:
>+        return MTLCompareFunctionLessEqual;
>+    case GPUCompareFunction::Greater:
>+        return MTLCompareFunctionGreater;
>+    case GPUCompareFunction::NotEqual:
>+        return MTLCompareFunctionNotEqual;
>+    case GPUCompareFunction::GreaterEqual:
>+        return MTLCompareFunctionGreaterEqual;
>+    case GPUCompareFunction::Always:
>+        return MTLCompareFunctionAlways;
>+    default:
>+        return WTF::nullopt;
>+    }
>+}
>+
>+static RetainPtr<MTLDepthStencilState> tryCreateMtlDepthStencilState(const char* const functionName, const GPUDepthStencilStateDescriptor& descriptor, const GPUDevice& device)
>+{
>+#if LOG_DISABLED
>+    UNUSED_PARAM(functionName);
>+#endif
>+    RetainPtr<MTLDepthStencilDescriptor> mtlDescriptor;
>+
>+    BEGIN_BLOCK_OBJC_EXCEPTIONS;
>+
>+    mtlDescriptor = adoptNS([MTLDepthStencilDescriptor new]);
>+
>+    END_BLOCK_OBJC_EXCEPTIONS;
>+
>+    if (!mtlDescriptor) {
>+        LOG(WebGPU, "%s: Unable to create MTLDepthStencilDescriptor!", functionName);
>+        return nullptr;
>+    }
>+
>+    auto mtlDepthCompare = validateAndConvertDepthCompareFunctionToMtl(descriptor.depthCompare);
>+    if (!mtlDepthCompare) {
>+        LOG(WebGPU, "%s: Invalid GPUCompareFunction in GPUDepthStencilStateDescriptor!", functionName);
>+        return nullptr;
>+    }
>+
>+    mtlDescriptor.get().depthCompareFunction = *mtlDepthCompare;
>+    mtlDescriptor.get().depthWriteEnabled = descriptor.depthWriteEnabled;
>+
>+    // FIXME: Implement back/frontFaceStencil.
>+
>+    RetainPtr<MTLDepthStencilState> state;
>+
>+    BEGIN_BLOCK_OBJC_EXCEPTIONS;
>+
>+    state = adoptNS([device.platformDevice() newDepthStencilStateWithDescriptor:mtlDescriptor.get()]);
>+
>+    END_BLOCK_OBJC_EXCEPTIONS;
>+
>+    if (!state) {
>+        LOG(WebGPU, "%s: Error creating MTLDepthStencilState!", functionName);
>+        return nullptr;
>+    }
>+
>+    return state;
>+}
>+
> static bool setFunctionsForPipelineDescriptor(const char* const functionName, MTLRenderPipelineDescriptor *mtlDescriptor, const GPURenderPipelineDescriptor& descriptor)
> {
> #if LOG_DISABLED
>@@ -175,15 +244,8 @@ static bool setInputStateForPipelineDescriptor(const char* const functionName, M
>     return true;
> }
> 
>-RefPtr<GPURenderPipeline> GPURenderPipeline::create(const GPUDevice& device, GPURenderPipelineDescriptor&& descriptor)
>+static RetainPtr<MTLRenderPipelineState> tryCreateMtlRenderPipelineState(const char* const functionName, const GPURenderPipelineDescriptor& descriptor, const GPUDevice& device)
> {
>-    const char* const functionName = "GPURenderPipeline::create()";
>-
>-    if (!device.platformDevice()) {
>-        LOG(WebGPU, "%s: Invalid GPUDevice!", functionName);
>-        return nullptr;
>-    }
>-
>     RetainPtr<MTLRenderPipelineDescriptor> mtlDescriptor;
> 
>     BEGIN_BLOCK_OBJC_EXCEPTIONS;
>@@ -212,7 +274,7 @@ RefPtr<GPURenderPipeline> GPURenderPipeline::create(const GPUDevice& device, GPU
>     // FIXME: Get the pixelFormat as configured for the context/CAMetalLayer.
>     mtlDescriptor.get().colorAttachments[0].pixelFormat = MTLPixelFormatBGRA8Unorm;
> 
>-    PlatformRenderPipelineSmartPtr pipeline;
>+    RetainPtr<MTLRenderPipelineState> pipeline;
> 
>     BEGIN_BLOCK_OBJC_EXCEPTIONS;
> 
>@@ -223,14 +285,31 @@ RefPtr<GPURenderPipeline> GPURenderPipeline::create(const GPUDevice& device, GPU
> 
>     END_BLOCK_OBJC_EXCEPTIONS;
> 
>+    return pipeline;
>+}
>+
>+RefPtr<GPURenderPipeline> GPURenderPipeline::create(const GPUDevice& device, GPURenderPipelineDescriptor&& descriptor)
>+{
>+    const char* const functionName = "GPURenderPipeline::create()";
>+
>+    if (!device.platformDevice()) {
>+        LOG(WebGPU, "%s: Invalid GPUDevice!", functionName);
>+        return nullptr;
>+    }
>+
>+    // Depth Stencil state is separate from the render pipeline state in Metal.
>+    auto depthStencil = tryCreateMtlDepthStencilState(functionName, descriptor.depthStencilState, device);
>+
>+    auto pipeline = tryCreateMtlRenderPipelineState(functionName, descriptor, device);
>     if (!pipeline)
>         return nullptr;
> 
>-    return adoptRef(new GPURenderPipeline(WTFMove(pipeline), WTFMove(descriptor)));
>+    return adoptRef(new GPURenderPipeline(WTFMove(depthStencil), WTFMove(pipeline), WTFMove(descriptor)));
> }
> 
>-GPURenderPipeline::GPURenderPipeline(PlatformRenderPipelineSmartPtr&& pipeline, GPURenderPipelineDescriptor&& descriptor)
>-    : m_platformRenderPipeline(WTFMove(pipeline))
>+GPURenderPipeline::GPURenderPipeline(RetainPtr<MTLDepthStencilState>&& depthStencil, RetainPtr<MTLRenderPipelineState>&& pipeline, GPURenderPipelineDescriptor&& descriptor)
>+    : m_depthStencilState(WTFMove(depthStencil))
>+    , m_platformRenderPipeline(WTFMove(pipeline))
>     , m_layout(WTFMove(descriptor.layout))
>     , m_primitiveTopology(descriptor.primitiveTopology)
> {

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Attachments on bug 194048: 360626 | 360650