--- webgpu_header
+++ dawn_header
@@
 struct WGPUSurfaceTexture;
 struct WGPUTexelCopyBufferLayout;
 struct WGPUTextureBindingLayout;
-struct WGPUTextureViewDescriptor;
+struct WGPUTextureComponentSwizzle;
 struct WGPUVertexAttribute;
 struct WGPUBindGroupDescriptor;
 struct WGPUBindGroupLayoutEntry;
@@
 struct WGPUSurfaceDescriptor;
 struct WGPUTexelCopyBufferInfo;
 struct WGPUTexelCopyTextureInfo;
+struct WGPUTextureComponentSwizzleDescriptor;
 struct WGPUTextureDescriptor;
 struct WGPUVertexBufferLayout;
 struct WGPUBindGroupLayoutDescriptor;
 struct WGPUColorTargetState;
 struct WGPUComputePipelineDescriptor;
 struct WGPURenderPassDescriptor;
+struct WGPUTextureViewDescriptor;
 struct WGPUVertexState;
 struct WGPUFragmentState;
 struct WGPURenderPipelineDescriptor;
@@
     WGPUCompilationMessageType_Info = 0x00000003,
     WGPUCompilationMessageType_Force32 = 0x7FFFFFFF
 } WGPUCompilationMessageType WGPU_ENUM_ATTRIBUTE;
+
+typedef enum WGPUComponentSwizzle {
+    WGPUComponentSwizzle_Undefined = 0x00000000,
+    WGPUComponentSwizzle_Zero = 0x00000001,
+    WGPUComponentSwizzle_One = 0x00000002,
+    WGPUComponentSwizzle_R = 0x00000003,
+    WGPUComponentSwizzle_G = 0x00000004,
+    WGPUComponentSwizzle_B = 0x00000005,
+    WGPUComponentSwizzle_A = 0x00000006,
+    WGPUComponentSwizzle_Force32 = 0x7FFFFFFF
+} WGPUComponentSwizzle WGPU_ENUM_ATTRIBUTE;
 
 typedef enum WGPUCompositeAlphaMode {
     WGPUCompositeAlphaMode_Auto = 0x00000000,
@@
     WGPUFeatureName_TextureFormatsTier1 = 0x00000013,
     WGPUFeatureName_TextureFormatsTier2 = 0x00000014,
     WGPUFeatureName_PrimitiveIndex = 0x00000015,
+    WGPUFeatureName_TextureComponentSwizzle = 0x00000016,
     WGPUFeatureName_Force32 = 0x7FFFFFFF
 } WGPUFeatureName WGPU_ENUM_ATTRIBUTE;
 
@@
     WGPUSType_SurfaceSourceXCBWindow = 0x00000009,
     WGPUSType_SurfaceColorManagement = 0x0000000A,
     WGPUSType_RequestAdapterWebXROptions = 0x0000000B,
+    WGPUSType_TextureComponentSwizzleDescriptor = 0x0000000C,
     WGPUSType_Force32 = 0x7FFFFFFF
 } WGPUSType WGPU_ENUM_ATTRIBUTE;
 
@@
     /*.multisampled=*/WGPU_FALSE _wgpu_COMMA \
 })
 
-typedef struct WGPUTextureViewDescriptor {
-    WGPUChainedStruct * nextInChain;
-    WGPUStringView label;
-    WGPUTextureFormat format;
-    WGPUTextureViewDimension dimension;
-    uint32_t baseMipLevel;
-    uint32_t mipLevelCount;
-    uint32_t baseArrayLayer;
-    uint32_t arrayLayerCount;
-    WGPUTextureAspect aspect;
-    WGPUTextureUsage usage;
-} WGPUTextureViewDescriptor WGPU_STRUCTURE_ATTRIBUTE;
-
-#define WGPU_TEXTURE_VIEW_DESCRIPTOR_INIT _wgpu_MAKE_INIT_STRUCT(WGPUTextureViewDescriptor, { \
-    /*.nextInChain=*/NULL _wgpu_COMMA \
-    /*.label=*/WGPU_STRING_VIEW_INIT _wgpu_COMMA \
-    /*.format=*/WGPUTextureFormat_Undefined _wgpu_COMMA \
-    /*.dimension=*/WGPUTextureViewDimension_Undefined _wgpu_COMMA \
-    /*.baseMipLevel=*/0 _wgpu_COMMA \
-    /*.mipLevelCount=*/WGPU_MIP_LEVEL_COUNT_UNDEFINED _wgpu_COMMA \
-    /*.baseArrayLayer=*/0 _wgpu_COMMA \
-    /*.arrayLayerCount=*/WGPU_ARRAY_LAYER_COUNT_UNDEFINED _wgpu_COMMA \
-    /*.aspect=*/WGPUTextureAspect_Undefined _wgpu_COMMA \
-    /*.usage=*/WGPUTextureUsage_None _wgpu_COMMA \
+typedef struct WGPUTextureComponentSwizzle {
+    WGPUComponentSwizzle r;
+    WGPUComponentSwizzle g;
+    WGPUComponentSwizzle b;
+    WGPUComponentSwizzle a;
+} WGPUTextureComponentSwizzle WGPU_STRUCTURE_ATTRIBUTE;
+
+#define WGPU_TEXTURE_COMPONENT_SWIZZLE_INIT _wgpu_MAKE_INIT_STRUCT(WGPUTextureComponentSwizzle, { \
+    /*.r=*/WGPUComponentSwizzle_Undefined _wgpu_COMMA \
+    /*.g=*/WGPUComponentSwizzle_Undefined _wgpu_COMMA \
+    /*.b=*/WGPUComponentSwizzle_Undefined _wgpu_COMMA \
+    /*.a=*/WGPUComponentSwizzle_Undefined _wgpu_COMMA \
 })
 
 typedef struct WGPUVertexAttribute {
@@
     /*.aspect=*/WGPUTextureAspect_Undefined _wgpu_COMMA \
 })
 
+typedef struct WGPUTextureComponentSwizzleDescriptor {
+    WGPUChainedStruct chain;
+    WGPUTextureComponentSwizzle swizzle;
+} WGPUTextureComponentSwizzleDescriptor WGPU_STRUCTURE_ATTRIBUTE;
+
+#define WGPU_TEXTURE_COMPONENT_SWIZZLE_DESCRIPTOR_INIT _wgpu_MAKE_INIT_STRUCT(WGPUTextureComponentSwizzleDescriptor, { \
+    /*.chain=*/_wgpu_MAKE_INIT_STRUCT(WGPUChainedStruct, { \
+        /*.next=*/NULL _wgpu_COMMA \
+        /*.sType=*/WGPUSType_TextureComponentSwizzleDescriptor _wgpu_COMMA \
+    }) _wgpu_COMMA \
+    /*.swizzle=*/WGPU_TEXTURE_COMPONENT_SWIZZLE_INIT _wgpu_COMMA \
+})
+
 typedef struct WGPUTextureDescriptor {
     WGPUChainedStruct * nextInChain;
     WGPUStringView label;
@@
     /*.depthStencilAttachment=*/NULL _wgpu_COMMA \
     /*.occlusionQuerySet=*/NULL _wgpu_COMMA \
     /*.timestampWrites=*/NULL _wgpu_COMMA \
+})
+
+typedef struct WGPUTextureViewDescriptor {
+    WGPUChainedStruct * nextInChain;
+    WGPUStringView label;
+    WGPUTextureFormat format;
+    WGPUTextureViewDimension dimension;
+    uint32_t baseMipLevel;
+    uint32_t mipLevelCount;
+    uint32_t baseArrayLayer;
+    uint32_t arrayLayerCount;
+    WGPUTextureAspect aspect;
+    WGPUTextureUsage usage;
+} WGPUTextureViewDescriptor WGPU_STRUCTURE_ATTRIBUTE;
+
+#define WGPU_TEXTURE_VIEW_DESCRIPTOR_INIT _wgpu_MAKE_INIT_STRUCT(WGPUTextureViewDescriptor, { \
+    /*.nextInChain=*/NULL _wgpu_COMMA \
+    /*.label=*/WGPU_STRING_VIEW_INIT _wgpu_COMMA \
+    /*.format=*/WGPUTextureFormat_Undefined _wgpu_COMMA \
+    /*.dimension=*/WGPUTextureViewDimension_Undefined _wgpu_COMMA \
+    /*.baseMipLevel=*/0 _wgpu_COMMA \
+    /*.mipLevelCount=*/WGPU_MIP_LEVEL_COUNT_UNDEFINED _wgpu_COMMA \
+    /*.baseArrayLayer=*/0 _wgpu_COMMA \
+    /*.arrayLayerCount=*/WGPU_ARRAY_LAYER_COUNT_UNDEFINED _wgpu_COMMA \
+    /*.aspect=*/WGPUTextureAspect_Undefined _wgpu_COMMA \
+    /*.usage=*/WGPUTextureUsage_None _wgpu_COMMA \
 })
 
 typedef struct WGPUVertexState {