Add Chromium-only Blender WebEngine parity work

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

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+//
+//   Copyright 2016 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 {
+    kCPU = 0,
+    kMetal,
+} KernelType;
+
+typedef enum {
+    kDisplacementModeHWBilinear = 0,
+    kDisplacementModeBilinear,
+    kDisplacementModeBiQuadratic,
+    kDisplacementModeNone
+} DisplacementMode;
+
+typedef enum {
+    kNormalModeHWScreenspace = 0,
+    kNormalModeScreenspace,
+    kNormalModeBiQuadratic,
+    kNormalModeBiQuadraticWG,
+    kNormalModeSurface
+} NormalMode;
+
+typedef enum {
+    kDisplayStyleWire = 0,
+    kDisplayStyleShaded,
+    kDisplayStyleWireOnShaded,
+} DisplayStyle;
+
+typedef enum {
+    kColorModePtexNearest = 0,
+    kColorModePtexBilinear,
+    kColorModePtexHWBilinear,
+    kColorModePtexBiQuadratic,
+    kColorModePatchType,
+    kColorModePatchCoord,
+    kColorModeNormal,
+    kColorModeNone
+} ColorMode;
+
+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) Camera* camera;
+
+
+@property (nonatomic) bool useSeamlessMipmap;
+@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 freeze;
+@property (nonatomic) bool animateVertices;
+@property (nonatomic) bool displayControlMeshEdges;
+@property (nonatomic) bool displayControlMeshVertices;
+@property (nonatomic) bool displaySpecular;
+@property (nonatomic) bool displayOcclusion;
+@property (nonatomic) bool yup;
+@property (nonatomic) float mipmapBias;
+@property (nonatomic) float displacementScale;
+
+@property (nonatomic) NSString* ptexColorFilename;
+@property (nonatomic) NSString* ptexDisplacementFilename;
+@property (nonatomic) NSString* ptexOcclusionFilename;
+@property (nonatomic) NSString* ptexSpecularFilename;
+
+@property (nonatomic) ColorMode colorMode;
+@property (nonatomic) NormalMode normalMode;
+@property (nonatomic) DisplacementMode displacementMode;
+@property (nonatomic) DisplayStyle displayStyle;
+@property (nonatomic) KernelType kernelType;
+@end