WebGPU

Playbit uses WebGPU as the system GPU interface, defined by <webgpu/webgpu.h>

The runtime interface for these functions is the syscall PBSysThreadWGpuOp and PBSysThreadWGpuOpAsync. Our C library provides C implementations of the wgpu functions defined by webgpu/webgpu.h on top of these syscalls.

API status

This section tracks the WebGPU C API exposed by webgpu/webgpu.h.

"Portable API v1" (P1) is the WebGPU C API subset which Playbit intends to support on both native and web runtimes.

P1 = Portable API v1 (124)
Native implemented: 149/254
Web implemented: 66/254
● = Implemented
○ = Not implemented
✗ = Unavailable (2)

Function	P1	Native	Web
`wgpuCreateInstance`	□	●	●
`wgpuGetInstanceFeatures`	□	●	●
`wgpuGetInstanceLimits`		○	○
`wgpuHasInstanceFeature`		○	○
`wgpuGetProcAddress`		○	○
`wgpuAdapterCreateDevice`	□	●	○
`wgpuAdapterGetFeatures`	□	●	○
`wgpuAdapterGetFormatCapabilities`		○	○
`wgpuAdapterGetInfo`	□	●	○
`wgpuAdapterGetInstance`		○	○
`wgpuAdapterGetLimits`	□	●	○
`wgpuAdapterHasFeature`	□	●	○
`wgpuAdapterRequestDevice`	□	●	●
`wgpuAdapterAddRef`	□	●	○
`wgpuAdapterRelease`	□	●	○
`wgpuAdapterInfoFreeMembers`		●	○
`wgpuAdapterPropertiesMemoryHeapsFreeMembers`		●	○
`wgpuAdapterPropertiesSubgroupMatrixConfigsFreeMembers`		●	○
`wgpuBindGroupSetLabel`		○	○
`wgpuBindGroupAddRef`	□	●	○
`wgpuBindGroupRelease`	□	●	○
`wgpuBindGroupLayoutSetLabel`		○	○
`wgpuBindGroupLayoutAddRef`	□	●	○
`wgpuBindGroupLayoutRelease`	□	●	○
`wgpuBufferDestroy`	□	●	●
`wgpuBufferGetConstMappedRange`		○	○
`wgpuBufferGetMappedRange`		○	○
`wgpuBufferGetMapState`	□	●	○
`wgpuBufferGetSize`	□	●	○
`wgpuBufferGetUsage`	□	●	○
`wgpuBufferMapAsync`	□	●	○
`wgpuBufferReadMappedRange`	□	●	○
`wgpuBufferSetLabel`		○	○
`wgpuBufferUnmap`	□	●	○
`wgpuBufferWriteMappedRange`	□	●	○
`wgpuBufferAddRef`	□	●	○
`wgpuBufferRelease`	□	●	○
`wgpuCommandBufferSetLabel`		○	○
`wgpuCommandBufferAddRef`	□	●	●
`wgpuCommandBufferRelease`	□	●	●
`wgpuCommandEncoderBeginComputePass`	□	●	○
`wgpuCommandEncoderBeginRenderPass`	□	●	●
`wgpuCommandEncoderClearBuffer`	□	●	○
`wgpuCommandEncoderCopyBufferToBuffer`	□	●	○
`wgpuCommandEncoderCopyBufferToTexture`	□	●	○
`wgpuCommandEncoderCopyTextureToBuffer`	□	●	○
`wgpuCommandEncoderCopyTextureToTexture`	□	●	○
`wgpuCommandEncoderFinish`	□	●	●
`wgpuCommandEncoderInjectValidationError`		○	○
`wgpuCommandEncoderInsertDebugMarker`		○	○
`wgpuCommandEncoderPopDebugGroup`		○	○
`wgpuCommandEncoderPushDebugGroup`		○	○
`wgpuCommandEncoderResolveQuerySet`		○	○
`wgpuCommandEncoderSetLabel`		○	○
`wgpuCommandEncoderWriteBuffer`		○	○
`wgpuCommandEncoderWriteTimestamp`		○	○
`wgpuCommandEncoderAddRef`	□	●	●
`wgpuCommandEncoderRelease`	□	●	●
`wgpuComputePassEncoderDispatchWorkgroups`	□	●	○
`wgpuComputePassEncoderDispatchWorkgroupsIndirect`	□	●	○
`wgpuComputePassEncoderEnd`	□	●	○
`wgpuComputePassEncoderInsertDebugMarker`		○	○
`wgpuComputePassEncoderPopDebugGroup`		○	○
`wgpuComputePassEncoderPushDebugGroup`		○	○
`wgpuComputePassEncoderSetBindGroup`	□	●	○
`wgpuComputePassEncoderSetImmediateData`		○	○
`wgpuComputePassEncoderSetLabel`		○	○
`wgpuComputePassEncoderSetPipeline`	□	●	○
`wgpuComputePassEncoderWriteTimestamp`		○	○
`wgpuComputePassEncoderAddRef`	□	●	○
`wgpuComputePassEncoderRelease`	□	●	○
`wgpuComputePipelineGetBindGroupLayout`	□	●	○
`wgpuComputePipelineSetLabel`		○	○
`wgpuComputePipelineAddRef`	□	●	○
`wgpuComputePipelineRelease`	□	●	○
`wgpuDawnDrmFormatCapabilitiesFreeMembers`		●	○
`wgpuDeviceCreateBindGroup`	□	●	●
`wgpuDeviceCreateBindGroupLayout`	□	●	●
`wgpuDeviceCreateBuffer`	□	●	●
`wgpuDeviceCreateCommandEncoder`	□	●	●
`wgpuDeviceCreateComputePipeline`	□	●	○
`wgpuDeviceCreateComputePipelineAsync`	□	●	○
`wgpuDeviceCreateErrorBuffer`		○	○
`wgpuDeviceCreateErrorExternalTexture`		○	○
`wgpuDeviceCreateErrorShaderModule`		○	○
`wgpuDeviceCreateErrorTexture`		○	○
`wgpuDeviceCreateExternalTexture`		○	○
`wgpuDeviceCreatePipelineLayout`	□	●	●
`wgpuDeviceCreateQuerySet`		○	○
`wgpuDeviceCreateRenderBundleEncoder`		○	○
`wgpuDeviceCreateRenderPipeline`	□	●	●
`wgpuDeviceCreateRenderPipelineAsync`	□	●	○
`wgpuDeviceCreateSampler`	□	●	●
`wgpuDeviceCreateShaderModule`	□	●	●
`wgpuDeviceCreateTexture`	□	●	●
`wgpuDeviceDestroy`		○	○
`wgpuDeviceForceLoss`		○	○
`wgpuDeviceGetAdapter`		○	○
`wgpuDeviceGetAdapterInfo`		○	○
`wgpuDeviceGetAHardwareBufferProperties`		○	○
`wgpuDeviceGetFeatures`	□	●	●
`wgpuDeviceGetLimits`	□	●	○
`wgpuDeviceGetLostFuture`	□	●	○
`wgpuDeviceGetQueue`	□	●	●
`wgpuDeviceHasFeature`	□	●	○
`wgpuDeviceImportSharedBufferMemory`		○	○
`wgpuDeviceImportSharedFence`		○	○
`wgpuDeviceImportSharedTextureMemory`		○	○
`wgpuDeviceInjectError`		○	○
`wgpuDevicePopErrorScope`	□	●	○
`wgpuDevicePushErrorScope`	□	●	○
`wgpuDeviceSetLabel`		○	○
`wgpuDeviceSetLoggingCallback`		○	○
`wgpuDeviceTick`		○	○
`wgpuDeviceValidateTextureDescriptor`		○	○
`wgpuDeviceAddRef`	□	●	●
`wgpuDeviceRelease`	□	●	●
`wgpuExternalTextureDestroy`		○	○
`wgpuExternalTextureExpire`		○	○
`wgpuExternalTextureRefresh`		○	○
`wgpuExternalTextureSetLabel`		○	○
`wgpuExternalTextureAddRef`		●	○
`wgpuExternalTextureRelease`		●	○
`wgpuInstanceCreateSurface`	□	●	●
`wgpuInstanceGetWGSLLanguageFeatures`	□	●	●
`wgpuInstanceHasWGSLLanguageFeature`		○	○
`wgpuInstanceProcessEvents`		✗	✗
`wgpuInstanceRequestAdapter`	□	●	●
`wgpuInstanceWaitAny`		✗	✗
`wgpuInstanceAddRef`	□	●	●
`wgpuInstanceRelease`	□	●	●
`wgpuPipelineLayoutSetLabel`		○	○
`wgpuPipelineLayoutAddRef`	□	●	○
`wgpuPipelineLayoutRelease`	□	●	○
`wgpuQuerySetDestroy`		○	○
`wgpuQuerySetGetCount`		○	○
`wgpuQuerySetGetType`		○	○
`wgpuQuerySetSetLabel`		○	○
`wgpuQuerySetAddRef`		●	○
`wgpuQuerySetRelease`		●	○
`wgpuQueueCopyExternalTextureForBrowser`		○	○
`wgpuQueueCopyTextureForBrowser`		○	○
`wgpuQueueOnSubmittedWorkDone`	□	●	●
`wgpuQueueSetLabel`		○	○
`wgpuQueueSubmit`	□	●	●
`wgpuQueueWriteBuffer`	□	●	●
`wgpuQueueWriteTexture`	□	●	●
`wgpuQueueAddRef`	□	●	●
`wgpuQueueRelease`	□	●	●
`wgpuRenderBundleSetLabel`		○	○
`wgpuRenderBundleAddRef`		●	○
`wgpuRenderBundleRelease`		●	○
`wgpuRenderBundleEncoderDraw`		○	○
`wgpuRenderBundleEncoderDrawIndexed`		○	○
`wgpuRenderBundleEncoderDrawIndexedIndirect`		○	○
`wgpuRenderBundleEncoderDrawIndirect`		○	○
`wgpuRenderBundleEncoderFinish`		○	○
`wgpuRenderBundleEncoderInsertDebugMarker`		○	○
`wgpuRenderBundleEncoderPopDebugGroup`		○	○
`wgpuRenderBundleEncoderPushDebugGroup`		○	○
`wgpuRenderBundleEncoderSetBindGroup`		○	○
`wgpuRenderBundleEncoderSetImmediateData`		○	○
`wgpuRenderBundleEncoderSetIndexBuffer`		○	○
`wgpuRenderBundleEncoderSetLabel`		○	○
`wgpuRenderBundleEncoderSetPipeline`		○	○
`wgpuRenderBundleEncoderSetVertexBuffer`		○	○
`wgpuRenderBundleEncoderAddRef`		●	○
`wgpuRenderBundleEncoderRelease`		●	○
`wgpuRenderPassEncoderBeginOcclusionQuery`		○	○
`wgpuRenderPassEncoderDraw`	□	●	●
`wgpuRenderPassEncoderDrawIndexed`	□	●	○
`wgpuRenderPassEncoderDrawIndexedIndirect`	□	●	○
`wgpuRenderPassEncoderDrawIndirect`	□	●	○
`wgpuRenderPassEncoderEnd`	□	●	●
`wgpuRenderPassEncoderEndOcclusionQuery`		○	○
`wgpuRenderPassEncoderExecuteBundles`		○	○
`wgpuRenderPassEncoderInsertDebugMarker`		○	○
`wgpuRenderPassEncoderMultiDrawIndexedIndirect`		○	○
`wgpuRenderPassEncoderMultiDrawIndirect`		○	○
`wgpuRenderPassEncoderPixelLocalStorageBarrier`		○	○
`wgpuRenderPassEncoderPopDebugGroup`		○	○
`wgpuRenderPassEncoderPushDebugGroup`		○	○
`wgpuRenderPassEncoderSetBindGroup`	□	●	●
`wgpuRenderPassEncoderSetBlendConstant`	□	●	○
`wgpuRenderPassEncoderSetImmediateData`		○	○
`wgpuRenderPassEncoderSetIndexBuffer`	□	●	○
`wgpuRenderPassEncoderSetLabel`		○	○
`wgpuRenderPassEncoderSetPipeline`	□	●	●
`wgpuRenderPassEncoderSetScissorRect`	□	●	●
`wgpuRenderPassEncoderSetStencilReference`	□	●	○
`wgpuRenderPassEncoderSetVertexBuffer`	□	●	●
`wgpuRenderPassEncoderSetViewport`	□	●	○
`wgpuRenderPassEncoderWriteTimestamp`		○	○
`wgpuRenderPassEncoderAddRef`	□	●	●
`wgpuRenderPassEncoderRelease`	□	●	●
`wgpuRenderPipelineGetBindGroupLayout`	□	●	○
`wgpuRenderPipelineSetLabel`		○	○
`wgpuRenderPipelineAddRef`	□	●	●
`wgpuRenderPipelineRelease`	□	●	●
`wgpuSamplerSetLabel`		○	○
`wgpuSamplerAddRef`	□	●	○
`wgpuSamplerRelease`	□	●	○
`wgpuShaderModuleGetCompilationInfo`	□	●	○
`wgpuShaderModuleSetLabel`		○	○
`wgpuShaderModuleAddRef`	□	●	●
`wgpuShaderModuleRelease`	□	●	●
`wgpuSharedBufferMemoryBeginAccess`		○	○
`wgpuSharedBufferMemoryCreateBuffer`		○	○
`wgpuSharedBufferMemoryEndAccess`		○	○
`wgpuSharedBufferMemoryGetProperties`		○	○
`wgpuSharedBufferMemoryIsDeviceLost`		○	○
`wgpuSharedBufferMemorySetLabel`		○	○
`wgpuSharedBufferMemoryAddRef`		●	○
`wgpuSharedBufferMemoryRelease`		●	○
`wgpuSharedBufferMemoryEndAccessStateFreeMembers`		●	○
`wgpuSharedFenceExportInfo`		○	○
`wgpuSharedFenceAddRef`		●	○
`wgpuSharedFenceRelease`		●	○
`wgpuSharedTextureMemoryBeginAccess`		○	○
`wgpuSharedTextureMemoryCreateTexture`		○	○
`wgpuSharedTextureMemoryEndAccess`		○	○
`wgpuSharedTextureMemoryGetProperties`		○	○
`wgpuSharedTextureMemoryIsDeviceLost`		○	○
`wgpuSharedTextureMemorySetLabel`		○	○
`wgpuSharedTextureMemoryAddRef`		●	○
`wgpuSharedTextureMemoryRelease`		●	○
`wgpuSharedTextureMemoryEndAccessStateFreeMembers`		●	○
`wgpuSupportedFeaturesFreeMembers`		●	●
`wgpuSupportedInstanceFeaturesFreeMembers`		●	●
`wgpuSupportedWGSLLanguageFeaturesFreeMembers`		●	●
`wgpuSurfaceConfigure`	□	●	●
`wgpuSurfaceGetCapabilities`	□	●	○
`wgpuSurfaceGetCurrentTexture`	□	●	●
`wgpuSurfacePresent`	□	●	●
`wgpuSurfaceSetLabel`	□	●	○
`wgpuSurfaceUnconfigure`	□	●	○
`wgpuSurfaceAddRef`	□	●	○
`wgpuSurfaceRelease`	□	●	○
`wgpuSurfaceCapabilitiesFreeMembers`		●	○
`wgpuTextureCreateErrorView`		○	○
`wgpuTextureCreateView`	□	●	●
`wgpuTextureDestroy`		●	●
`wgpuTextureGetDepthOrArrayLayers`	□	●	●
`wgpuTextureGetDimension`	□	●	●
`wgpuTextureGetFormat`	□	●	●
`wgpuTextureGetHeight`	□	●	●
`wgpuTextureGetMipLevelCount`	□	●	●
`wgpuTextureGetSampleCount`	□	●	●
`wgpuTextureGetUsage`	□	●	●
`wgpuTextureGetWidth`	□	●	●
`wgpuTextureSetLabel`		○	○
`wgpuTextureAddRef`	□	●	●
`wgpuTextureRelease`	□	●	●
`wgpuTextureViewSetLabel`		○	○
`wgpuTextureViewAddRef`	□	●	●
`wgpuTextureViewRelease`	□	●	●