--- webgpu_header
+++ dawn_header
@@
 typedef struct WGPUBufferImpl* WGPUBuffer WGPU_OBJECT_ATTRIBUTE;
 typedef struct WGPUCommandBufferImpl* WGPUCommandBuffer WGPU_OBJECT_ATTRIBUTE;
 typedef struct WGPUCommandEncoderImpl* WGPUCommandEncoder WGPU_OBJECT_ATTRIBUTE;
-typedef struct WGPUComputePassEncoderImpl* WGPUComputePassEncoder WGPU_OBJECT_ATTRIBUTE;
 typedef struct WGPUComputePipelineImpl* WGPUComputePipeline WGPU_OBJECT_ATTRIBUTE;
 typedef struct WGPUDeviceImpl* WGPUDevice WGPU_OBJECT_ATTRIBUTE;
-typedef struct WGPUExternalTextureImpl* WGPUExternalTexture WGPU_OBJECT_ATTRIBUTE;
 typedef struct WGPUInstanceImpl* WGPUInstance WGPU_OBJECT_ATTRIBUTE;
 typedef struct WGPUPipelineLayoutImpl* WGPUPipelineLayout WGPU_OBJECT_ATTRIBUTE;
 typedef struct WGPUQuerySetImpl* WGPUQuerySet WGPU_OBJECT_ATTRIBUTE;
 typedef struct WGPUQueueImpl* WGPUQueue WGPU_OBJECT_ATTRIBUTE;
 typedef struct WGPURenderBundleImpl* WGPURenderBundle WGPU_OBJECT_ATTRIBUTE;
-typedef struct WGPURenderBundleEncoderImpl* WGPURenderBundleEncoder WGPU_OBJECT_ATTRIBUTE;
-typedef struct WGPURenderPassEncoderImpl* WGPURenderPassEncoder WGPU_OBJECT_ATTRIBUTE;
 typedef struct WGPURenderPipelineImpl* WGPURenderPipeline WGPU_OBJECT_ATTRIBUTE;
 typedef struct WGPUSamplerImpl* WGPUSampler WGPU_OBJECT_ATTRIBUTE;
 typedef struct WGPUShaderModuleImpl* WGPUShaderModule WGPU_OBJECT_ATTRIBUTE;
 typedef struct WGPUSurfaceImpl* WGPUSurface WGPU_OBJECT_ATTRIBUTE;
 typedef struct WGPUTextureImpl* WGPUTexture WGPU_OBJECT_ATTRIBUTE;
 typedef struct WGPUTextureViewImpl* WGPUTextureView WGPU_OBJECT_ATTRIBUTE;
+typedef struct WGPUComputePassEncoderImpl* WGPUComputePassEncoder WGPU_OBJECT_ATTRIBUTE;
+typedef struct WGPURenderBundleEncoderImpl* WGPURenderBundleEncoder WGPU_OBJECT_ATTRIBUTE;
+typedef struct WGPURenderPassEncoderImpl* WGPURenderPassEncoder WGPU_OBJECT_ATTRIBUTE;
 
 struct WGPUAdapterInfo;
+struct WGPUBindGroupEntry;
 struct WGPUBlendComponent;
 struct WGPUBufferBindingLayout;
 struct WGPUBufferDescriptor;
@@
 struct WGPUCompilationMessage;
 struct WGPUConstantEntry;
 struct WGPUExtent3D;
-struct WGPUExternalTextureBindingEntry;
-struct WGPUExternalTextureBindingLayout;
 struct WGPUFuture;
 struct WGPUInstanceLimits;
 struct WGPULimits;
@@
 struct WGPUTexelCopyBufferLayout;
 struct WGPUTextureBindingLayout;
 struct WGPUTextureComponentSwizzle;
-struct WGPUTextureViewDescriptor;
 struct WGPUVertexAttribute;
-struct WGPUBindGroupEntry;
+struct WGPUBindGroupDescriptor;
 struct WGPUBindGroupLayoutEntry;
 struct WGPUBlendState;
 struct WGPUCompilationInfo;
@@
 struct WGPUTextureComponentSwizzleDescriptor;
 struct WGPUTextureDescriptor;
 struct WGPUVertexBufferLayout;
-struct WGPUBindGroupDescriptor;
 struct WGPUBindGroupLayoutDescriptor;
 struct WGPUColorTargetState;
 struct WGPUComputePipelineDescriptor;
 struct WGPURenderPassDescriptor;
+struct WGPUTextureViewDescriptor;
 struct WGPUVertexState;
 struct WGPUFragmentState;
 struct WGPURenderPipelineDescriptor;
@@
     WGPUSType_SurfaceColorManagement = 0x0000000A,
     WGPUSType_RequestAdapterWebXROptions = 0x0000000B,
     WGPUSType_TextureComponentSwizzleDescriptor = 0x0000000C,
-    WGPUSType_ExternalTextureBindingLayout = 0x0000000D,
-    WGPUSType_ExternalTextureBindingEntry = 0x0000000E,
     WGPUSType_Force32 = 0x7FFFFFFF
 } WGPUSType WGPU_ENUM_ATTRIBUTE;
 
@@
     WGPUWGSLLanguageFeatureName_PointerCompositeAccess = 0x00000004,
     WGPUWGSLLanguageFeatureName_UniformBufferStandardLayout = 0x00000005,
     WGPUWGSLLanguageFeatureName_SubgroupId = 0x00000006,
+    WGPUWGSLLanguageFeatureName_TextureAndSamplerLet = 0x00000007,
+    WGPUWGSLLanguageFeatureName_SubgroupUniformity = 0x00000008,
+    WGPUWGSLLanguageFeatureName_TextureFormatsTier1 = 0x00000009,
     WGPUWGSLLanguageFeatureName_Force32 = 0x7FFFFFFF
 } WGPUWGSLLanguageFeatureName WGPU_ENUM_ATTRIBUTE;
 
@@
     /*.subgroupMaxSize=*/0 _wgpu_COMMA \
 })
 
+typedef struct WGPUBindGroupEntry {
+    WGPUChainedStruct * nextInChain;
+    uint32_t binding;
+    WGPU_NULLABLE WGPUBuffer buffer;
+    uint64_t offset;
+    uint64_t size;
+    WGPU_NULLABLE WGPUSampler sampler;
+    WGPU_NULLABLE WGPUTextureView textureView;
+} WGPUBindGroupEntry WGPU_STRUCTURE_ATTRIBUTE;
+
+#define WGPU_BIND_GROUP_ENTRY_INIT _wgpu_MAKE_INIT_STRUCT(WGPUBindGroupEntry, { \
+    /*.nextInChain=*/NULL _wgpu_COMMA \
+    /*.binding=*/0 _wgpu_COMMA \
+    /*.buffer=*/NULL _wgpu_COMMA \
+    /*.offset=*/0 _wgpu_COMMA \
+    /*.size=*/WGPU_WHOLE_SIZE _wgpu_COMMA \
+    /*.sampler=*/NULL _wgpu_COMMA \
+    /*.textureView=*/NULL _wgpu_COMMA \
+})
+
 typedef struct WGPUBlendComponent {
     WGPUBlendOperation operation;
     WGPUBlendFactor srcFactor;
@@
     /*.width=*/0 _wgpu_COMMA \
     /*.height=*/1 _wgpu_COMMA \
     /*.depthOrArrayLayers=*/1 _wgpu_COMMA \
-})
-
-typedef struct WGPUExternalTextureBindingEntry {
-    WGPUChainedStruct chain;
-    WGPUExternalTexture externalTexture;
-} WGPUExternalTextureBindingEntry WGPU_STRUCTURE_ATTRIBUTE;
-
-#define WGPU_EXTERNAL_TEXTURE_BINDING_ENTRY_INIT _wgpu_MAKE_INIT_STRUCT(WGPUExternalTextureBindingEntry, { \
-    /*.chain=*/_wgpu_MAKE_INIT_STRUCT(WGPUChainedStruct, { \
-        /*.next=*/NULL _wgpu_COMMA \
-        /*.sType=*/WGPUSType_ExternalTextureBindingEntry _wgpu_COMMA \
-    }) _wgpu_COMMA \
-    /*.externalTexture=*/NULL _wgpu_COMMA \
-})
-
-typedef struct WGPUExternalTextureBindingLayout {
-    WGPUChainedStruct chain;
-} WGPUExternalTextureBindingLayout WGPU_STRUCTURE_ATTRIBUTE;
-
-#define WGPU_EXTERNAL_TEXTURE_BINDING_LAYOUT_INIT _wgpu_MAKE_INIT_STRUCT(WGPUExternalTextureBindingLayout, { \
-    /*.chain=*/_wgpu_MAKE_INIT_STRUCT(WGPUChainedStruct, { \
-        /*.next=*/NULL _wgpu_COMMA \
-        /*.sType=*/WGPUSType_ExternalTextureBindingLayout _wgpu_COMMA \
-    }) _wgpu_COMMA \
 })
 
 typedef struct WGPUFuture {
@@
     /*.a=*/WGPUComponentSwizzle_Undefined _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 WGPUVertexAttribute {
     WGPUChainedStruct * nextInChain;
     WGPUVertexFormat format;
@@
     /*.shaderLocation=*/0 _wgpu_COMMA \
 })
 
-typedef struct WGPUBindGroupEntry {
-    WGPUChainedStruct * nextInChain;
-    uint32_t binding;
-    WGPU_NULLABLE WGPUBuffer buffer;
-    uint64_t offset;
-    uint64_t size;
-    WGPU_NULLABLE WGPUSampler sampler;
-    WGPU_NULLABLE WGPUTextureView textureView;
-} WGPUBindGroupEntry WGPU_STRUCTURE_ATTRIBUTE;
-
-#define WGPU_BIND_GROUP_ENTRY_INIT _wgpu_MAKE_INIT_STRUCT(WGPUBindGroupEntry, { \
-    /*.nextInChain=*/NULL _wgpu_COMMA \
-    /*.binding=*/0 _wgpu_COMMA \
-    /*.buffer=*/NULL _wgpu_COMMA \
-    /*.offset=*/0 _wgpu_COMMA \
-    /*.size=*/WGPU_WHOLE_SIZE _wgpu_COMMA \
-    /*.sampler=*/NULL _wgpu_COMMA \
-    /*.textureView=*/NULL _wgpu_COMMA \
+typedef struct WGPUBindGroupDescriptor {
+    WGPUChainedStruct * nextInChain;
+    WGPUStringView label;
+    WGPUBindGroupLayout layout;
+    size_t entryCount;
+    WGPUBindGroupEntry const * entries;
+} WGPUBindGroupDescriptor WGPU_STRUCTURE_ATTRIBUTE;
+
+#define WGPU_BIND_GROUP_DESCRIPTOR_INIT _wgpu_MAKE_INIT_STRUCT(WGPUBindGroupDescriptor, { \
+    /*.nextInChain=*/NULL _wgpu_COMMA \
+    /*.label=*/WGPU_STRING_VIEW_INIT _wgpu_COMMA \
+    /*.layout=*/NULL _wgpu_COMMA \
+    /*.entryCount=*/0 _wgpu_COMMA \
+    /*.entries=*/NULL _wgpu_COMMA \
 })
 
 typedef struct WGPUBindGroupLayoutEntry {
@@
     /*.attributes=*/NULL _wgpu_COMMA \
 })
 
-typedef struct WGPUBindGroupDescriptor {
-    WGPUChainedStruct * nextInChain;
-    WGPUStringView label;
-    WGPUBindGroupLayout layout;
-    size_t entryCount;
-    WGPUBindGroupEntry const * entries;
-} WGPUBindGroupDescriptor WGPU_STRUCTURE_ATTRIBUTE;
-
-#define WGPU_BIND_GROUP_DESCRIPTOR_INIT _wgpu_MAKE_INIT_STRUCT(WGPUBindGroupDescriptor, { \
-    /*.nextInChain=*/NULL _wgpu_COMMA \
-    /*.label=*/WGPU_STRING_VIEW_INIT _wgpu_COMMA \
-    /*.layout=*/NULL _wgpu_COMMA \
-    /*.entryCount=*/0 _wgpu_COMMA \
-    /*.entries=*/NULL _wgpu_COMMA \
-})
-
 typedef struct WGPUBindGroupLayoutDescriptor {
     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 {
@@
 typedef void (*WGPUProcDeviceAddRef)(WGPUDevice device) WGPU_FUNCTION_ATTRIBUTE;
 typedef void (*WGPUProcDeviceRelease)(WGPUDevice device) WGPU_FUNCTION_ATTRIBUTE;
 
-typedef void (*WGPUProcExternalTextureSetLabel)(WGPUExternalTexture externalTexture, WGPUStringView label) WGPU_FUNCTION_ATTRIBUTE;
-typedef void (*WGPUProcExternalTextureAddRef)(WGPUExternalTexture externalTexture) WGPU_FUNCTION_ATTRIBUTE;
-typedef void (*WGPUProcExternalTextureRelease)(WGPUExternalTexture externalTexture) WGPU_FUNCTION_ATTRIBUTE;
-
 typedef WGPUSurface (*WGPUProcInstanceCreateSurface)(WGPUInstance instance, WGPUSurfaceDescriptor const * descriptor) WGPU_FUNCTION_ATTRIBUTE;
 typedef void (*WGPUProcInstanceGetWGSLLanguageFeatures)(WGPUInstance instance, WGPUSupportedWGSLLanguageFeatures * features) WGPU_FUNCTION_ATTRIBUTE;
 typedef WGPUBool (*WGPUProcInstanceHasWGSLLanguageFeature)(WGPUInstance instance, WGPUWGSLLanguageFeatureName feature) WGPU_FUNCTION_ATTRIBUTE;
@@
 WGPU_EXPORT void wgpuDeviceAddRef(WGPUDevice device) WGPU_FUNCTION_ATTRIBUTE;
 WGPU_EXPORT void wgpuDeviceRelease(WGPUDevice device) WGPU_FUNCTION_ATTRIBUTE;
 
-WGPU_EXPORT void wgpuExternalTextureSetLabel(WGPUExternalTexture externalTexture, WGPUStringView label) WGPU_FUNCTION_ATTRIBUTE;
-WGPU_EXPORT void wgpuExternalTextureAddRef(WGPUExternalTexture externalTexture) WGPU_FUNCTION_ATTRIBUTE;
-WGPU_EXPORT void wgpuExternalTextureRelease(WGPUExternalTexture externalTexture) WGPU_FUNCTION_ATTRIBUTE;
-
 WGPU_EXPORT WGPUSurface wgpuInstanceCreateSurface(WGPUInstance instance, WGPUSurfaceDescriptor const * descriptor) WGPU_FUNCTION_ATTRIBUTE;
 WGPU_EXPORT void wgpuInstanceGetWGSLLanguageFeatures(WGPUInstance instance, WGPUSupportedWGSLLanguageFeatures * features) WGPU_FUNCTION_ATTRIBUTE;
 WGPU_EXPORT WGPUBool wgpuInstanceHasWGSLLanguageFeature(WGPUInstance instance, WGPUWGSLLanguageFeatureName feature) WGPU_FUNCTION_ATTRIBUTE;