Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/opensubdiv-source/examples/mtlViewer/mtlViewer.h

@@ -0,0 +1,109 @@
+//
+//   Copyright 2015 Pixar
+//
+//   Licensed under the terms set forth in the LICENSE.txt file available at
+//   https://opensubdiv.org/license.
+//
+
+#pragma once
+
+#import <Foundation/Foundation.h>
+#import <Metal/Metal.h>
+
+typedef enum {
+    kEndCapBilinearBasis = 0,
+    kEndCapBSplineBasis,
+    kEndCapGregoryBasis,
+    kEndCapLegacyGregory,
+} EndCap;
+
+typedef enum {
+    kFVarLinearNone = 0,
+    kFVarLinearCornersOnly,
+    kFVarLinearCornersPlus1,
+    kFVarLinearCornersPlus2,
+    kFVarLinearBoundaries,
+    kFVarLinearAll
+} FVarLinearInterp;
+
+typedef enum {
+    kCPU = 0,
+    kMetal,
+} KernelType;
+
+typedef enum {
+    kDisplayStyleWire = 0,
+    kDisplayStyleShaded,
+    kDisplayStyleWireOnShaded,
+} DisplayStyle;
+
+typedef enum {
+    kShadingMaterial = 0,
+    kShadingFaceVaryingColor,
+    kShadingPatchType,
+    kShadingPatchDepth,
+    kShadingPatchCoord,
+    kShadingNormal,
+} ShadingMode;
+
+typedef struct {
+    float rotationX;
+    float rotationY;
+    float dollyDistance;
+    float aspectRatio;
+} Camera;
+
+@class OSDRenderer;
+
+@protocol OSDRendererDelegate <NSObject>
+-(id<MTLDevice>)deviceFor:(OSDRenderer*)renderer;
+-(id<MTLCommandQueue>)commandQueueFor:(OSDRenderer*)renderer;
+-(MTLRenderPassDescriptor*)renderPassDescriptorFor:(OSDRenderer*)renderer;
+-(void)setupDepthStencilState:(MTLDepthStencilDescriptor*)descriptor for:(OSDRenderer*)renderer;
+-(void)setupRenderPipelineState:(MTLRenderPipelineDescriptor*)descriptor for:(OSDRenderer*)renderer;
+@end
+
+@interface OSDRenderer : NSObject
+
+-(instancetype)initWithDelegate:(id<OSDRendererDelegate>)delegate;
+
+-(id<MTLRenderCommandEncoder>)drawFrame:(id<MTLCommandBuffer>)commandBuffer;
+
+-(void)fitFrame;
+
+@property (readonly, nonatomic) id<OSDRendererDelegate> delegate;
+
+@property (nonatomic) unsigned refinementLevel;
+@property (nonatomic) int tessellationLevel;
+
+@property (readonly, nonatomic) NSArray<NSString*>* loadedModels;
+@property (nonatomic) NSString* currentModel;
+
+@property (readonly, nonatomic) Camera* camera;
+
+@property (readonly, nonatomic) int* patchCounts;
+
+@property (nonatomic) bool useFractionalTessellation;
+@property (nonatomic) bool useScreenspaceTessellation;
+@property (nonatomic) bool usePatchIndexBuffer;
+@property (nonatomic) bool usePatchBackfaceCulling;
+@property (nonatomic) bool usePatchClipCulling;
+@property (nonatomic) bool useSmoothCornerPatch;
+@property (nonatomic) bool useSingleCreasePatch;
+@property (nonatomic) bool useInfinitelySharpPatch;
+@property (nonatomic) bool useStageIn;
+@property (nonatomic) bool usePrimitiveBackfaceCulling;
+@property (nonatomic) bool useAdaptive;
+@property (nonatomic) bool yup;
+@property (nonatomic) bool freeze;
+@property (nonatomic) bool animateVertices;
+@property (nonatomic) bool displayControlMeshEdges;
+@property (nonatomic) bool displayControlMeshVertices;
+@property (nonatomic) bool legacyGregoryEnabled;
+@property (nonatomic) DisplayStyle displayStyle;
+@property (nonatomic) ShadingMode shadingMode;
+@property (nonatomic) EndCap endCapMode;
+@property (nonatomic) FVarLinearInterp fVarLinearInterp;
+@property (nonatomic) KernelType kernelType;
+
+@end