| // Copyright 2017 The Dawn Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "dawn_native/RenderPipeline.h" |
| |
| #include "common/BitSetIterator.h" |
| #include "dawn_native/ChainUtils_autogen.h" |
| #include "dawn_native/Commands.h" |
| #include "dawn_native/Device.h" |
| #include "dawn_native/InternalPipelineStore.h" |
| #include "dawn_native/ObjectContentHasher.h" |
| #include "dawn_native/ObjectType_autogen.h" |
| #include "dawn_native/ValidationUtils_autogen.h" |
| #include "dawn_native/VertexFormat.h" |
| |
| #include <cmath> |
| #include <sstream> |
| |
| namespace dawn_native { |
| absl::FormatConvertResult<absl::FormatConversionCharSet::kString> AbslFormatConvert( |
| VertexFormatBaseType value, |
| const absl::FormatConversionSpec& spec, |
| absl::FormatSink* s) { |
| switch (value) { |
| case VertexFormatBaseType::Float: |
| s->Append("Float"); |
| break; |
| case VertexFormatBaseType::Uint: |
| s->Append("Uint"); |
| break; |
| case VertexFormatBaseType::Sint: |
| s->Append("Sint"); |
| break; |
| default: |
| UNREACHABLE(); |
| } |
| return {true}; |
| } |
| |
| absl::FormatConvertResult<absl::FormatConversionCharSet::kString> AbslFormatConvert( |
| InterStageComponentType value, |
| const absl::FormatConversionSpec& spec, |
| absl::FormatSink* s) { |
| switch (value) { |
| case InterStageComponentType::Float: |
| s->Append("Float"); |
| break; |
| case InterStageComponentType::Uint: |
| s->Append("Uint"); |
| break; |
| case InterStageComponentType::Sint: |
| s->Append("Sint"); |
| break; |
| default: |
| UNREACHABLE(); |
| } |
| return {true}; |
| } |
| |
| absl::FormatConvertResult<absl::FormatConversionCharSet::kString> AbslFormatConvert( |
| InterpolationType value, |
| const absl::FormatConversionSpec& spec, |
| absl::FormatSink* s) { |
| switch (value) { |
| case InterpolationType::Perspective: |
| s->Append("Perspective"); |
| break; |
| case InterpolationType::Linear: |
| s->Append("Linear"); |
| break; |
| case InterpolationType::Flat: |
| s->Append("Flat"); |
| break; |
| default: |
| UNREACHABLE(); |
| } |
| return {true}; |
| } |
| |
| absl::FormatConvertResult<absl::FormatConversionCharSet::kString> AbslFormatConvert( |
| InterpolationSampling value, |
| const absl::FormatConversionSpec& spec, |
| absl::FormatSink* s) { |
| switch (value) { |
| case InterpolationSampling::None: |
| s->Append("None"); |
| break; |
| case InterpolationSampling::Center: |
| s->Append("Center"); |
| break; |
| case InterpolationSampling::Centroid: |
| s->Append("Centroid"); |
| break; |
| case InterpolationSampling::Sample: |
| s->Append("Sample"); |
| break; |
| default: |
| UNREACHABLE(); |
| } |
| return {true}; |
| } |
| |
| // Helper functions |
| namespace { |
| MaybeError ValidateVertexAttribute( |
| DeviceBase* device, |
| const VertexAttribute* attribute, |
| const EntryPointMetadata& metadata, |
| uint64_t vertexBufferStride, |
| ityp::bitset<VertexAttributeLocation, kMaxVertexAttributes>* attributesSetMask) { |
| DAWN_TRY(ValidateVertexFormat(attribute->format)); |
| const VertexFormatInfo& formatInfo = GetVertexFormatInfo(attribute->format); |
| |
| DAWN_INVALID_IF( |
| attribute->shaderLocation >= kMaxVertexAttributes, |
| "Attribute shader location (%u) exceeds the maximum number of vertex attributes " |
| "(%u).", |
| attribute->shaderLocation, kMaxVertexAttributes); |
| |
| VertexAttributeLocation location(static_cast<uint8_t>(attribute->shaderLocation)); |
| |
| // No underflow is possible because the max vertex format size is smaller than |
| // kMaxVertexBufferArrayStride. |
| ASSERT(kMaxVertexBufferArrayStride >= formatInfo.byteSize); |
| DAWN_INVALID_IF( |
| attribute->offset > kMaxVertexBufferArrayStride - formatInfo.byteSize, |
| "Attribute offset (%u) with format %s (size: %u) doesn't fit in the maximum vertex " |
| "buffer stride (%u).", |
| attribute->offset, attribute->format, formatInfo.byteSize, |
| kMaxVertexBufferArrayStride); |
| |
| // No overflow is possible because the offset is already validated to be less |
| // than kMaxVertexBufferArrayStride. |
| ASSERT(attribute->offset < kMaxVertexBufferArrayStride); |
| DAWN_INVALID_IF( |
| vertexBufferStride > 0 && |
| attribute->offset + formatInfo.byteSize > vertexBufferStride, |
| "Attribute offset (%u) with format %s (size: %u) doesn't fit in the vertex buffer " |
| "stride (%u).", |
| attribute->offset, attribute->format, formatInfo.byteSize, vertexBufferStride); |
| |
| DAWN_INVALID_IF(attribute->offset % std::min(4u, formatInfo.byteSize) != 0, |
| "Attribute offset (%u) in not a multiple of %u.", attribute->offset, |
| std::min(4u, formatInfo.byteSize)); |
| |
| DAWN_INVALID_IF(metadata.usedVertexInputs[location] && |
| formatInfo.baseType != metadata.vertexInputBaseTypes[location], |
| "Attribute base type (%s) does not match the " |
| "shader's base type (%s) in location (%u).", |
| formatInfo.baseType, metadata.vertexInputBaseTypes[location], |
| attribute->shaderLocation); |
| |
| DAWN_INVALID_IF((*attributesSetMask)[location], |
| "Attribute shader location (%u) is used more than once.", |
| attribute->shaderLocation); |
| |
| attributesSetMask->set(location); |
| return {}; |
| } |
| |
| MaybeError ValidateVertexBufferLayout( |
| DeviceBase* device, |
| const VertexBufferLayout* buffer, |
| const EntryPointMetadata& metadata, |
| ityp::bitset<VertexAttributeLocation, kMaxVertexAttributes>* attributesSetMask) { |
| DAWN_TRY(ValidateVertexStepMode(buffer->stepMode)); |
| DAWN_INVALID_IF( |
| buffer->arrayStride > kMaxVertexBufferArrayStride, |
| "Vertex buffer arrayStride (%u) is larger than the maximum array stride (%u).", |
| buffer->arrayStride, kMaxVertexBufferArrayStride); |
| |
| DAWN_INVALID_IF(buffer->arrayStride % 4 != 0, |
| "Vertex buffer arrayStride (%u) is not a multiple of 4.", |
| buffer->arrayStride); |
| |
| for (uint32_t i = 0; i < buffer->attributeCount; ++i) { |
| DAWN_TRY_CONTEXT(ValidateVertexAttribute(device, &buffer->attributes[i], metadata, |
| buffer->arrayStride, attributesSetMask), |
| "validating attributes[%u].", i); |
| } |
| |
| return {}; |
| } |
| |
| MaybeError ValidateVertexState(DeviceBase* device, |
| const VertexState* descriptor, |
| const PipelineLayoutBase* layout) { |
| DAWN_INVALID_IF(descriptor->nextInChain != nullptr, "nextInChain must be nullptr."); |
| |
| DAWN_INVALID_IF( |
| descriptor->bufferCount > kMaxVertexBuffers, |
| "Vertex buffer count (%u) exceeds the maximum number of vertex buffers (%u).", |
| descriptor->bufferCount, kMaxVertexBuffers); |
| |
| DAWN_TRY_CONTEXT( |
| ValidateProgrammableStage(device, descriptor->module, descriptor->entryPoint, |
| descriptor->constantCount, descriptor->constants, layout, |
| SingleShaderStage::Vertex), |
| "validating vertex stage (module: %s, entryPoint: %s).", descriptor->module, |
| descriptor->entryPoint); |
| const EntryPointMetadata& vertexMetadata = |
| descriptor->module->GetEntryPoint(descriptor->entryPoint); |
| |
| ityp::bitset<VertexAttributeLocation, kMaxVertexAttributes> attributesSetMask; |
| uint32_t totalAttributesNum = 0; |
| for (uint32_t i = 0; i < descriptor->bufferCount; ++i) { |
| DAWN_TRY_CONTEXT(ValidateVertexBufferLayout(device, &descriptor->buffers[i], |
| vertexMetadata, &attributesSetMask), |
| "validating buffers[%u].", i); |
| totalAttributesNum += descriptor->buffers[i].attributeCount; |
| } |
| |
| // Every vertex attribute has a member called shaderLocation, and there are some |
| // requirements for shaderLocation: 1) >=0, 2) values are different across different |
| // attributes, 3) can't exceed kMaxVertexAttributes. So it can ensure that total |
| // attribute number never exceed kMaxVertexAttributes. |
| ASSERT(totalAttributesNum <= kMaxVertexAttributes); |
| |
| // TODO(dawn:563): Specify which inputs were not used in error message. |
| DAWN_INVALID_IF(!IsSubset(vertexMetadata.usedVertexInputs, attributesSetMask), |
| "Pipeline vertex stage uses vertex buffers not in the vertex state"); |
| |
| return {}; |
| } |
| |
| MaybeError ValidatePrimitiveState(const DeviceBase* device, |
| const PrimitiveState* descriptor) { |
| DAWN_TRY(ValidateSingleSType(descriptor->nextInChain, |
| wgpu::SType::PrimitiveDepthClampingState)); |
| const PrimitiveDepthClampingState* clampInfo = nullptr; |
| FindInChain(descriptor->nextInChain, &clampInfo); |
| if (clampInfo && !device->IsFeatureEnabled(Feature::DepthClamping)) { |
| return DAWN_VALIDATION_ERROR("The depth clamping feature is not supported"); |
| } |
| DAWN_TRY(ValidatePrimitiveTopology(descriptor->topology)); |
| DAWN_TRY(ValidateIndexFormat(descriptor->stripIndexFormat)); |
| DAWN_TRY(ValidateFrontFace(descriptor->frontFace)); |
| DAWN_TRY(ValidateCullMode(descriptor->cullMode)); |
| |
| // Pipeline descriptors must have stripIndexFormat != undefined IFF they are using strip |
| // topologies. |
| if (IsStripPrimitiveTopology(descriptor->topology)) { |
| DAWN_INVALID_IF( |
| descriptor->stripIndexFormat == wgpu::IndexFormat::Undefined, |
| "StripIndexFormat is undefined when using a strip primitive topology (%s).", |
| descriptor->topology); |
| } else { |
| DAWN_INVALID_IF( |
| descriptor->stripIndexFormat != wgpu::IndexFormat::Undefined, |
| "StripIndexFormat (%s) is not undefined when using a non-strip primitive " |
| "topology (%s).", |
| descriptor->stripIndexFormat, descriptor->topology); |
| } |
| |
| return {}; |
| } |
| |
| MaybeError ValidateDepthStencilState(const DeviceBase* device, |
| const DepthStencilState* descriptor) { |
| if (descriptor->nextInChain != nullptr) { |
| return DAWN_VALIDATION_ERROR("nextInChain must be nullptr"); |
| } |
| |
| DAWN_TRY(ValidateCompareFunction(descriptor->depthCompare)); |
| DAWN_TRY(ValidateCompareFunction(descriptor->stencilFront.compare)); |
| DAWN_TRY(ValidateStencilOperation(descriptor->stencilFront.failOp)); |
| DAWN_TRY(ValidateStencilOperation(descriptor->stencilFront.depthFailOp)); |
| DAWN_TRY(ValidateStencilOperation(descriptor->stencilFront.passOp)); |
| DAWN_TRY(ValidateCompareFunction(descriptor->stencilBack.compare)); |
| DAWN_TRY(ValidateStencilOperation(descriptor->stencilBack.failOp)); |
| DAWN_TRY(ValidateStencilOperation(descriptor->stencilBack.depthFailOp)); |
| DAWN_TRY(ValidateStencilOperation(descriptor->stencilBack.passOp)); |
| |
| const Format* format; |
| DAWN_TRY_ASSIGN(format, device->GetInternalFormat(descriptor->format)); |
| DAWN_INVALID_IF(!format->HasDepthOrStencil() || !format->isRenderable, |
| "Depth stencil format (%s) is not depth-stencil renderable.", |
| descriptor->format); |
| |
| DAWN_INVALID_IF(std::isnan(descriptor->depthBiasSlopeScale) || |
| std::isnan(descriptor->depthBiasClamp), |
| "Either depthBiasSlopeScale (%f) or depthBiasClamp (%f) is NaN.", |
| descriptor->depthBiasSlopeScale, descriptor->depthBiasClamp); |
| |
| return {}; |
| } |
| |
| MaybeError ValidateMultisampleState(const MultisampleState* descriptor) { |
| DAWN_INVALID_IF(descriptor->nextInChain != nullptr, "nextInChain must be nullptr."); |
| |
| DAWN_INVALID_IF(!IsValidSampleCount(descriptor->count), |
| "Multisample count (%u) is not supported.", descriptor->count); |
| |
| DAWN_INVALID_IF(descriptor->alphaToCoverageEnabled && descriptor->count <= 1, |
| "Multisample count (%u) must be > 1 when alphaToCoverage is enabled.", |
| descriptor->count); |
| |
| return {}; |
| } |
| |
| MaybeError ValidateBlendState(DeviceBase* device, const BlendState* descriptor) { |
| DAWN_TRY(ValidateBlendOperation(descriptor->alpha.operation)); |
| DAWN_TRY(ValidateBlendFactor(descriptor->alpha.srcFactor)); |
| DAWN_TRY(ValidateBlendFactor(descriptor->alpha.dstFactor)); |
| DAWN_TRY(ValidateBlendOperation(descriptor->color.operation)); |
| DAWN_TRY(ValidateBlendFactor(descriptor->color.srcFactor)); |
| DAWN_TRY(ValidateBlendFactor(descriptor->color.dstFactor)); |
| return {}; |
| } |
| |
| bool BlendFactorContainsSrcAlpha(const wgpu::BlendFactor& blendFactor) { |
| return blendFactor == wgpu::BlendFactor::SrcAlpha || |
| blendFactor == wgpu::BlendFactor::OneMinusSrcAlpha || |
| blendFactor == wgpu::BlendFactor::SrcAlphaSaturated; |
| } |
| |
| MaybeError ValidateColorTargetState( |
| DeviceBase* device, |
| const ColorTargetState* descriptor, |
| bool fragmentWritten, |
| const EntryPointMetadata::FragmentOutputVariableInfo& fragmentOutputVariable) { |
| DAWN_INVALID_IF(descriptor->nextInChain != nullptr, "nextInChain must be nullptr."); |
| |
| if (descriptor->blend) { |
| DAWN_TRY_CONTEXT(ValidateBlendState(device, descriptor->blend), |
| "validating blend state."); |
| } |
| |
| DAWN_TRY(ValidateColorWriteMask(descriptor->writeMask)); |
| |
| const Format* format; |
| DAWN_TRY_ASSIGN(format, device->GetInternalFormat(descriptor->format)); |
| DAWN_INVALID_IF(!format->IsColor() || !format->isRenderable, |
| "Color format (%s) is not color renderable.", descriptor->format); |
| |
| DAWN_INVALID_IF( |
| descriptor->blend && !(format->GetAspectInfo(Aspect::Color).supportedSampleTypes & |
| SampleTypeBit::Float), |
| "Blending is enabled but color format (%s) is not blendable.", descriptor->format); |
| |
| if (fragmentWritten) { |
| DAWN_INVALID_IF(fragmentOutputVariable.baseType != |
| format->GetAspectInfo(Aspect::Color).baseType, |
| "Color format (%s) base type (%s) doesn't match the fragment " |
| "module output type (%s).", |
| descriptor->format, format->GetAspectInfo(Aspect::Color).baseType, |
| fragmentOutputVariable.baseType); |
| |
| DAWN_INVALID_IF( |
| fragmentOutputVariable.componentCount < format->componentCount, |
| "The fragment stage has fewer output components (%u) than the color format " |
| "(%s) component count (%u).", |
| fragmentOutputVariable.componentCount, descriptor->format, |
| format->componentCount); |
| |
| if (descriptor->blend) { |
| if (fragmentOutputVariable.componentCount < 4u) { |
| // No alpha channel output |
| // Make sure there's no alpha involved in the blending operation |
| DAWN_INVALID_IF( |
| BlendFactorContainsSrcAlpha(descriptor->blend->color.srcFactor) || |
| BlendFactorContainsSrcAlpha(descriptor->blend->color.dstFactor), |
| "Color blending srcfactor (%s) or dstFactor (%s) is reading alpha " |
| "but it is missing from fragment output.", |
| descriptor->blend->color.srcFactor, descriptor->blend->color.dstFactor); |
| } |
| } |
| } else { |
| DAWN_INVALID_IF( |
| descriptor->writeMask != wgpu::ColorWriteMask::None, |
| "Color target has no corresponding fragment stage output but writeMask (%s) is " |
| "not zero.", |
| descriptor->writeMask); |
| } |
| |
| return {}; |
| } |
| |
| MaybeError ValidateFragmentState(DeviceBase* device, |
| const FragmentState* descriptor, |
| const PipelineLayoutBase* layout) { |
| DAWN_INVALID_IF(descriptor->nextInChain != nullptr, "nextInChain must be nullptr."); |
| |
| DAWN_TRY_CONTEXT( |
| ValidateProgrammableStage(device, descriptor->module, descriptor->entryPoint, |
| descriptor->constantCount, descriptor->constants, layout, |
| SingleShaderStage::Fragment), |
| "validating fragment stage (module: %s, entryPoint: %s).", descriptor->module, |
| descriptor->entryPoint); |
| |
| DAWN_INVALID_IF(descriptor->targetCount > kMaxColorAttachments, |
| "Number of targets (%u) exceeds the maximum (%u).", |
| descriptor->targetCount, kMaxColorAttachments); |
| |
| const EntryPointMetadata& fragmentMetadata = |
| descriptor->module->GetEntryPoint(descriptor->entryPoint); |
| for (ColorAttachmentIndex i(uint8_t(0)); |
| i < ColorAttachmentIndex(static_cast<uint8_t>(descriptor->targetCount)); ++i) { |
| DAWN_TRY_CONTEXT( |
| ValidateColorTargetState(device, &descriptor->targets[static_cast<uint8_t>(i)], |
| fragmentMetadata.fragmentOutputsWritten[i], |
| fragmentMetadata.fragmentOutputVariables[i]), |
| "validating targets[%u].", static_cast<uint8_t>(i)); |
| } |
| |
| return {}; |
| } |
| |
| MaybeError ValidateInterStageMatching(DeviceBase* device, |
| const VertexState& vertexState, |
| const FragmentState& fragmentState) { |
| const EntryPointMetadata& vertexMetadata = |
| vertexState.module->GetEntryPoint(vertexState.entryPoint); |
| const EntryPointMetadata& fragmentMetadata = |
| fragmentState.module->GetEntryPoint(fragmentState.entryPoint); |
| |
| // TODO(dawn:563): Can this message give more details? |
| DAWN_INVALID_IF( |
| vertexMetadata.usedInterStageVariables != fragmentMetadata.usedInterStageVariables, |
| "One or more fragment inputs and vertex outputs are not one-to-one matching"); |
| |
| // TODO(dawn:802): Validate interpolation types and interpolition sampling types |
| for (size_t i : IterateBitSet(vertexMetadata.usedInterStageVariables)) { |
| const auto& vertexOutputInfo = vertexMetadata.interStageVariables[i]; |
| const auto& fragmentInputInfo = fragmentMetadata.interStageVariables[i]; |
| DAWN_INVALID_IF( |
| vertexOutputInfo.baseType != fragmentInputInfo.baseType, |
| "The base type (%s) of the vertex output at location %u is different from the " |
| "base type (%s) of the fragment input at location %u.", |
| vertexOutputInfo.baseType, i, fragmentInputInfo.baseType, i); |
| |
| DAWN_INVALID_IF( |
| vertexOutputInfo.componentCount != fragmentInputInfo.componentCount, |
| "The component count (%u) of the vertex output at location %u is different " |
| "from the component count (%u) of the fragment input at location %u.", |
| vertexOutputInfo.componentCount, i, fragmentInputInfo.componentCount, i); |
| |
| DAWN_INVALID_IF( |
| vertexOutputInfo.interpolationType != fragmentInputInfo.interpolationType, |
| "The interpolation type (%s) of the vertex output at location %u is different " |
| "from the interpolation type (%s) of the fragment input at location %u.", |
| vertexOutputInfo.interpolationType, i, fragmentInputInfo.interpolationType, i); |
| |
| DAWN_INVALID_IF( |
| vertexOutputInfo.interpolationSampling != |
| fragmentInputInfo.interpolationSampling, |
| "The interpolation sampling (%s) of the vertex output at location %u is " |
| "different from the interpolation sampling (%s) of the fragment input at " |
| "location %u.", |
| vertexOutputInfo.interpolationSampling, i, |
| fragmentInputInfo.interpolationSampling, i); |
| } |
| |
| return {}; |
| } |
| } // anonymous namespace |
| |
| // Helper functions |
| size_t IndexFormatSize(wgpu::IndexFormat format) { |
| switch (format) { |
| case wgpu::IndexFormat::Uint16: |
| return sizeof(uint16_t); |
| case wgpu::IndexFormat::Uint32: |
| return sizeof(uint32_t); |
| case wgpu::IndexFormat::Undefined: |
| break; |
| } |
| UNREACHABLE(); |
| } |
| |
| bool IsStripPrimitiveTopology(wgpu::PrimitiveTopology primitiveTopology) { |
| return primitiveTopology == wgpu::PrimitiveTopology::LineStrip || |
| primitiveTopology == wgpu::PrimitiveTopology::TriangleStrip; |
| } |
| |
| MaybeError ValidateRenderPipelineDescriptor(DeviceBase* device, |
| const RenderPipelineDescriptor* descriptor) { |
| DAWN_INVALID_IF(descriptor->nextInChain != nullptr, "nextInChain must be nullptr."); |
| |
| if (descriptor->layout != nullptr) { |
| DAWN_TRY(device->ValidateObject(descriptor->layout)); |
| } |
| |
| DAWN_TRY_CONTEXT(ValidateVertexState(device, &descriptor->vertex, descriptor->layout), |
| "validating vertex state."); |
| |
| DAWN_TRY_CONTEXT(ValidatePrimitiveState(device, &descriptor->primitive), |
| "validating primitive state."); |
| |
| if (descriptor->depthStencil) { |
| DAWN_TRY_CONTEXT(ValidateDepthStencilState(device, descriptor->depthStencil), |
| "validating depthStencil state."); |
| } |
| |
| DAWN_TRY_CONTEXT(ValidateMultisampleState(&descriptor->multisample), |
| "validating multisample state."); |
| |
| if (descriptor->fragment != nullptr) { |
| DAWN_TRY_CONTEXT( |
| ValidateFragmentState(device, descriptor->fragment, descriptor->layout), |
| "validating fragment state."); |
| |
| DAWN_INVALID_IF(descriptor->fragment->targetCount == 0 && !descriptor->depthStencil, |
| "Must have at least one color or depthStencil target."); |
| |
| DAWN_TRY( |
| ValidateInterStageMatching(device, descriptor->vertex, *(descriptor->fragment))); |
| } |
| |
| return {}; |
| } |
| |
| std::vector<StageAndDescriptor> GetRenderStagesAndSetDummyShader( |
| DeviceBase* device, |
| const RenderPipelineDescriptor* descriptor) { |
| std::vector<StageAndDescriptor> stages; |
| stages.push_back({SingleShaderStage::Vertex, descriptor->vertex.module, |
| descriptor->vertex.entryPoint, descriptor->vertex.constantCount, |
| descriptor->vertex.constants}); |
| if (descriptor->fragment != nullptr) { |
| stages.push_back({SingleShaderStage::Fragment, descriptor->fragment->module, |
| descriptor->fragment->entryPoint, descriptor->fragment->constantCount, |
| descriptor->fragment->constants}); |
| } else if (device->IsToggleEnabled(Toggle::UseDummyFragmentInVertexOnlyPipeline)) { |
| InternalPipelineStore* store = device->GetInternalPipelineStore(); |
| // The dummy fragment shader module should already be initialized |
| DAWN_ASSERT(store->dummyFragmentShader != nullptr); |
| ShaderModuleBase* dummyFragmentShader = store->dummyFragmentShader.Get(); |
| stages.push_back( |
| {SingleShaderStage::Fragment, dummyFragmentShader, "fs_empty_main", 0, nullptr}); |
| } |
| return stages; |
| } |
| |
| bool StencilTestEnabled(const DepthStencilState* mDepthStencil) { |
| return mDepthStencil->stencilBack.compare != wgpu::CompareFunction::Always || |
| mDepthStencil->stencilBack.failOp != wgpu::StencilOperation::Keep || |
| mDepthStencil->stencilBack.depthFailOp != wgpu::StencilOperation::Keep || |
| mDepthStencil->stencilBack.passOp != wgpu::StencilOperation::Keep || |
| mDepthStencil->stencilFront.compare != wgpu::CompareFunction::Always || |
| mDepthStencil->stencilFront.failOp != wgpu::StencilOperation::Keep || |
| mDepthStencil->stencilFront.depthFailOp != wgpu::StencilOperation::Keep || |
| mDepthStencil->stencilFront.passOp != wgpu::StencilOperation::Keep; |
| } |
| |
| // RenderPipelineBase |
| |
| RenderPipelineBase::RenderPipelineBase(DeviceBase* device, |
| const RenderPipelineDescriptor* descriptor) |
| : PipelineBase(device, |
| descriptor->layout, |
| descriptor->label, |
| GetRenderStagesAndSetDummyShader(device, descriptor)), |
| mAttachmentState(device->GetOrCreateAttachmentState(descriptor)) { |
| mVertexBufferCount = descriptor->vertex.bufferCount; |
| const VertexBufferLayout* buffers = descriptor->vertex.buffers; |
| for (uint8_t slot = 0; slot < mVertexBufferCount; ++slot) { |
| if (buffers[slot].attributeCount == 0) { |
| continue; |
| } |
| |
| VertexBufferSlot typedSlot(slot); |
| |
| mVertexBufferSlotsUsed.set(typedSlot); |
| mVertexBufferInfos[typedSlot].arrayStride = buffers[slot].arrayStride; |
| mVertexBufferInfos[typedSlot].stepMode = buffers[slot].stepMode; |
| mVertexBufferInfos[typedSlot].usedBytesInStride = 0; |
| switch (buffers[slot].stepMode) { |
| case wgpu::VertexStepMode::Vertex: |
| mVertexBufferSlotsUsedAsVertexBuffer.set(typedSlot); |
| break; |
| case wgpu::VertexStepMode::Instance: |
| mVertexBufferSlotsUsedAsInstanceBuffer.set(typedSlot); |
| break; |
| default: |
| DAWN_UNREACHABLE(); |
| } |
| |
| for (uint32_t i = 0; i < buffers[slot].attributeCount; ++i) { |
| VertexAttributeLocation location = VertexAttributeLocation( |
| static_cast<uint8_t>(buffers[slot].attributes[i].shaderLocation)); |
| mAttributeLocationsUsed.set(location); |
| mAttributeInfos[location].shaderLocation = location; |
| mAttributeInfos[location].vertexBufferSlot = typedSlot; |
| mAttributeInfos[location].offset = buffers[slot].attributes[i].offset; |
| mAttributeInfos[location].format = buffers[slot].attributes[i].format; |
| // Compute the access boundary of this attribute by adding attribute format size to |
| // attribute offset. Although offset is in uint64_t, such sum must be no larger than |
| // maxVertexBufferArrayStride (2048), which is promised by the GPUVertexBufferLayout |
| // validation of creating render pipeline. Therefore, calculating in uint16_t will |
| // cause no overflow. |
| DAWN_ASSERT(buffers[slot].attributes[i].offset <= 2048); |
| uint16_t accessBoundary = |
| uint16_t(buffers[slot].attributes[i].offset) + |
| uint16_t(GetVertexFormatInfo(buffers[slot].attributes[i].format).byteSize); |
| mVertexBufferInfos[typedSlot].usedBytesInStride = |
| std::max(mVertexBufferInfos[typedSlot].usedBytesInStride, accessBoundary); |
| } |
| } |
| |
| mPrimitive = descriptor->primitive; |
| const PrimitiveDepthClampingState* clampInfo = nullptr; |
| FindInChain(mPrimitive.nextInChain, &clampInfo); |
| if (clampInfo) { |
| mClampDepth = clampInfo->clampDepth; |
| } |
| mMultisample = descriptor->multisample; |
| |
| if (mAttachmentState->HasDepthStencilAttachment()) { |
| mDepthStencil = *descriptor->depthStencil; |
| mWritesDepth = mDepthStencil.depthWriteEnabled; |
| if (mDepthStencil.stencilWriteMask) { |
| if ((mPrimitive.cullMode != wgpu::CullMode::Front && |
| (mDepthStencil.stencilFront.failOp != wgpu::StencilOperation::Keep || |
| mDepthStencil.stencilFront.depthFailOp != wgpu::StencilOperation::Keep || |
| mDepthStencil.stencilFront.passOp != wgpu::StencilOperation::Keep)) || |
| (mPrimitive.cullMode != wgpu::CullMode::Back && |
| (mDepthStencil.stencilBack.failOp != wgpu::StencilOperation::Keep || |
| mDepthStencil.stencilBack.depthFailOp != wgpu::StencilOperation::Keep || |
| mDepthStencil.stencilBack.passOp != wgpu::StencilOperation::Keep))) { |
| mWritesStencil = true; |
| } |
| } |
| } else { |
| // These default values below are useful for backends to fill information. |
| // The values indicate that depth and stencil test are disabled when backends |
| // set their own depth stencil states/descriptors according to the values in |
| // mDepthStencil. |
| mDepthStencil.format = wgpu::TextureFormat::Undefined; |
| mDepthStencil.depthWriteEnabled = false; |
| mDepthStencil.depthCompare = wgpu::CompareFunction::Always; |
| mDepthStencil.stencilBack.compare = wgpu::CompareFunction::Always; |
| mDepthStencil.stencilBack.failOp = wgpu::StencilOperation::Keep; |
| mDepthStencil.stencilBack.depthFailOp = wgpu::StencilOperation::Keep; |
| mDepthStencil.stencilBack.passOp = wgpu::StencilOperation::Keep; |
| mDepthStencil.stencilFront.compare = wgpu::CompareFunction::Always; |
| mDepthStencil.stencilFront.failOp = wgpu::StencilOperation::Keep; |
| mDepthStencil.stencilFront.depthFailOp = wgpu::StencilOperation::Keep; |
| mDepthStencil.stencilFront.passOp = wgpu::StencilOperation::Keep; |
| mDepthStencil.stencilReadMask = 0xff; |
| mDepthStencil.stencilWriteMask = 0xff; |
| mDepthStencil.depthBias = 0; |
| mDepthStencil.depthBiasSlopeScale = 0.0f; |
| mDepthStencil.depthBiasClamp = 0.0f; |
| } |
| |
| for (ColorAttachmentIndex i : IterateBitSet(mAttachmentState->GetColorAttachmentsMask())) { |
| // Vertex-only render pipeline have no color attachment. For a render pipeline with |
| // color attachments, there must be a valid FragmentState. |
| ASSERT(descriptor->fragment != nullptr); |
| const ColorTargetState* target = |
| &descriptor->fragment->targets[static_cast<uint8_t>(i)]; |
| mTargets[i] = *target; |
| |
| if (target->blend != nullptr) { |
| mTargetBlend[i] = *target->blend; |
| mTargets[i].blend = &mTargetBlend[i]; |
| } |
| } |
| |
| SetContentHash(ComputeContentHash()); |
| } |
| |
| RenderPipelineBase::RenderPipelineBase(DeviceBase* device, ObjectBase::ErrorTag tag) |
| : PipelineBase(device, tag) { |
| } |
| |
| // static |
| RenderPipelineBase* RenderPipelineBase::MakeError(DeviceBase* device) { |
| class ErrorRenderPipeline final : public RenderPipelineBase { |
| public: |
| ErrorRenderPipeline(DeviceBase* device) |
| : RenderPipelineBase(device, ObjectBase::kError) { |
| } |
| |
| MaybeError Initialize() override { |
| UNREACHABLE(); |
| return {}; |
| } |
| }; |
| |
| return new ErrorRenderPipeline(device); |
| } |
| |
| ObjectType RenderPipelineBase::GetType() const { |
| return ObjectType::RenderPipeline; |
| } |
| |
| RenderPipelineBase::~RenderPipelineBase() { |
| if (IsCachedReference()) { |
| GetDevice()->UncacheRenderPipeline(this); |
| } |
| } |
| |
| const ityp::bitset<VertexAttributeLocation, kMaxVertexAttributes>& |
| RenderPipelineBase::GetAttributeLocationsUsed() const { |
| ASSERT(!IsError()); |
| return mAttributeLocationsUsed; |
| } |
| |
| const VertexAttributeInfo& RenderPipelineBase::GetAttribute( |
| VertexAttributeLocation location) const { |
| ASSERT(!IsError()); |
| ASSERT(mAttributeLocationsUsed[location]); |
| return mAttributeInfos[location]; |
| } |
| |
| const ityp::bitset<VertexBufferSlot, kMaxVertexBuffers>& |
| RenderPipelineBase::GetVertexBufferSlotsUsed() const { |
| ASSERT(!IsError()); |
| return mVertexBufferSlotsUsed; |
| } |
| |
| const ityp::bitset<VertexBufferSlot, kMaxVertexBuffers>& |
| RenderPipelineBase::GetVertexBufferSlotsUsedAsVertexBuffer() const { |
| ASSERT(!IsError()); |
| return mVertexBufferSlotsUsedAsVertexBuffer; |
| } |
| |
| const ityp::bitset<VertexBufferSlot, kMaxVertexBuffers>& |
| RenderPipelineBase::GetVertexBufferSlotsUsedAsInstanceBuffer() const { |
| ASSERT(!IsError()); |
| return mVertexBufferSlotsUsedAsInstanceBuffer; |
| } |
| |
| const VertexBufferInfo& RenderPipelineBase::GetVertexBuffer(VertexBufferSlot slot) const { |
| ASSERT(!IsError()); |
| ASSERT(mVertexBufferSlotsUsed[slot]); |
| return mVertexBufferInfos[slot]; |
| } |
| |
| uint32_t RenderPipelineBase::GetVertexBufferCount() const { |
| ASSERT(!IsError()); |
| return mVertexBufferCount; |
| } |
| |
| const ColorTargetState* RenderPipelineBase::GetColorTargetState( |
| ColorAttachmentIndex attachmentSlot) const { |
| ASSERT(!IsError()); |
| ASSERT(attachmentSlot < mTargets.size()); |
| return &mTargets[attachmentSlot]; |
| } |
| |
| const DepthStencilState* RenderPipelineBase::GetDepthStencilState() const { |
| ASSERT(!IsError()); |
| return &mDepthStencil; |
| } |
| |
| wgpu::PrimitiveTopology RenderPipelineBase::GetPrimitiveTopology() const { |
| ASSERT(!IsError()); |
| return mPrimitive.topology; |
| } |
| |
| wgpu::IndexFormat RenderPipelineBase::GetStripIndexFormat() const { |
| ASSERT(!IsError()); |
| return mPrimitive.stripIndexFormat; |
| } |
| |
| wgpu::CullMode RenderPipelineBase::GetCullMode() const { |
| ASSERT(!IsError()); |
| return mPrimitive.cullMode; |
| } |
| |
| wgpu::FrontFace RenderPipelineBase::GetFrontFace() const { |
| ASSERT(!IsError()); |
| return mPrimitive.frontFace; |
| } |
| |
| bool RenderPipelineBase::IsDepthBiasEnabled() const { |
| ASSERT(!IsError()); |
| return mDepthStencil.depthBias != 0 || mDepthStencil.depthBiasSlopeScale != 0; |
| } |
| |
| int32_t RenderPipelineBase::GetDepthBias() const { |
| ASSERT(!IsError()); |
| return mDepthStencil.depthBias; |
| } |
| |
| float RenderPipelineBase::GetDepthBiasSlopeScale() const { |
| ASSERT(!IsError()); |
| return mDepthStencil.depthBiasSlopeScale; |
| } |
| |
| float RenderPipelineBase::GetDepthBiasClamp() const { |
| ASSERT(!IsError()); |
| return mDepthStencil.depthBiasClamp; |
| } |
| |
| bool RenderPipelineBase::ShouldClampDepth() const { |
| ASSERT(!IsError()); |
| return mClampDepth; |
| } |
| |
| ityp::bitset<ColorAttachmentIndex, kMaxColorAttachments> |
| RenderPipelineBase::GetColorAttachmentsMask() const { |
| ASSERT(!IsError()); |
| return mAttachmentState->GetColorAttachmentsMask(); |
| } |
| |
| bool RenderPipelineBase::HasDepthStencilAttachment() const { |
| ASSERT(!IsError()); |
| return mAttachmentState->HasDepthStencilAttachment(); |
| } |
| |
| wgpu::TextureFormat RenderPipelineBase::GetColorAttachmentFormat( |
| ColorAttachmentIndex attachment) const { |
| ASSERT(!IsError()); |
| return mTargets[attachment].format; |
| } |
| |
| wgpu::TextureFormat RenderPipelineBase::GetDepthStencilFormat() const { |
| ASSERT(!IsError()); |
| ASSERT(mAttachmentState->HasDepthStencilAttachment()); |
| return mDepthStencil.format; |
| } |
| |
| uint32_t RenderPipelineBase::GetSampleCount() const { |
| ASSERT(!IsError()); |
| return mAttachmentState->GetSampleCount(); |
| } |
| |
| uint32_t RenderPipelineBase::GetSampleMask() const { |
| ASSERT(!IsError()); |
| return mMultisample.mask; |
| } |
| |
| bool RenderPipelineBase::IsAlphaToCoverageEnabled() const { |
| ASSERT(!IsError()); |
| return mMultisample.alphaToCoverageEnabled; |
| } |
| |
| const AttachmentState* RenderPipelineBase::GetAttachmentState() const { |
| ASSERT(!IsError()); |
| |
| return mAttachmentState.Get(); |
| } |
| |
| bool RenderPipelineBase::WritesDepth() const { |
| ASSERT(!IsError()); |
| |
| return mWritesDepth; |
| } |
| |
| bool RenderPipelineBase::WritesStencil() const { |
| ASSERT(!IsError()); |
| |
| return mWritesStencil; |
| } |
| |
| size_t RenderPipelineBase::ComputeContentHash() { |
| ObjectContentHasher recorder; |
| |
| // Record modules and layout |
| recorder.Record(PipelineBase::ComputeContentHash()); |
| |
| // Hierarchically record the attachment state. |
| // It contains the attachments set, texture formats, and sample count. |
| recorder.Record(mAttachmentState->GetContentHash()); |
| |
| // Record attachments |
| for (ColorAttachmentIndex i : IterateBitSet(mAttachmentState->GetColorAttachmentsMask())) { |
| const ColorTargetState& desc = *GetColorTargetState(i); |
| recorder.Record(desc.writeMask); |
| if (desc.blend != nullptr) { |
| recorder.Record(desc.blend->color.operation, desc.blend->color.srcFactor, |
| desc.blend->color.dstFactor); |
| recorder.Record(desc.blend->alpha.operation, desc.blend->alpha.srcFactor, |
| desc.blend->alpha.dstFactor); |
| } |
| } |
| |
| if (mAttachmentState->HasDepthStencilAttachment()) { |
| const DepthStencilState& desc = mDepthStencil; |
| recorder.Record(desc.depthWriteEnabled, desc.depthCompare); |
| recorder.Record(desc.stencilReadMask, desc.stencilWriteMask); |
| recorder.Record(desc.stencilFront.compare, desc.stencilFront.failOp, |
| desc.stencilFront.depthFailOp, desc.stencilFront.passOp); |
| recorder.Record(desc.stencilBack.compare, desc.stencilBack.failOp, |
| desc.stencilBack.depthFailOp, desc.stencilBack.passOp); |
| recorder.Record(desc.depthBias, desc.depthBiasSlopeScale, desc.depthBiasClamp); |
| } |
| |
| // Record vertex state |
| recorder.Record(mAttributeLocationsUsed); |
| for (VertexAttributeLocation location : IterateBitSet(mAttributeLocationsUsed)) { |
| const VertexAttributeInfo& desc = GetAttribute(location); |
| recorder.Record(desc.shaderLocation, desc.vertexBufferSlot, desc.offset, desc.format); |
| } |
| |
| recorder.Record(mVertexBufferSlotsUsed); |
| for (VertexBufferSlot slot : IterateBitSet(mVertexBufferSlotsUsed)) { |
| const VertexBufferInfo& desc = GetVertexBuffer(slot); |
| recorder.Record(desc.arrayStride, desc.stepMode); |
| } |
| |
| // Record primitive state |
| recorder.Record(mPrimitive.topology, mPrimitive.stripIndexFormat, mPrimitive.frontFace, |
| mPrimitive.cullMode, mClampDepth); |
| |
| // Record multisample state |
| // Sample count hashed as part of the attachment state |
| recorder.Record(mMultisample.mask, mMultisample.alphaToCoverageEnabled); |
| |
| return recorder.GetContentHash(); |
| } |
| |
| bool RenderPipelineBase::EqualityFunc::operator()(const RenderPipelineBase* a, |
| const RenderPipelineBase* b) const { |
| // Check the layout and shader stages. |
| if (!PipelineBase::EqualForCache(a, b)) { |
| return false; |
| } |
| |
| // Check the attachment state. |
| // It contains the attachments set, texture formats, and sample count. |
| if (a->mAttachmentState.Get() != b->mAttachmentState.Get()) { |
| return false; |
| } |
| |
| for (ColorAttachmentIndex i : |
| IterateBitSet(a->mAttachmentState->GetColorAttachmentsMask())) { |
| const ColorTargetState& descA = *a->GetColorTargetState(i); |
| const ColorTargetState& descB = *b->GetColorTargetState(i); |
| if (descA.writeMask != descB.writeMask) { |
| return false; |
| } |
| if ((descA.blend == nullptr) != (descB.blend == nullptr)) { |
| return false; |
| } |
| if (descA.blend != nullptr) { |
| if (descA.blend->color.operation != descB.blend->color.operation || |
| descA.blend->color.srcFactor != descB.blend->color.srcFactor || |
| descA.blend->color.dstFactor != descB.blend->color.dstFactor) { |
| return false; |
| } |
| if (descA.blend->alpha.operation != descB.blend->alpha.operation || |
| descA.blend->alpha.srcFactor != descB.blend->alpha.srcFactor || |
| descA.blend->alpha.dstFactor != descB.blend->alpha.dstFactor) { |
| return false; |
| } |
| } |
| } |
| |
| // Check depth/stencil state |
| if (a->mAttachmentState->HasDepthStencilAttachment()) { |
| const DepthStencilState& stateA = a->mDepthStencil; |
| const DepthStencilState& stateB = b->mDepthStencil; |
| |
| ASSERT(!std::isnan(stateA.depthBiasSlopeScale)); |
| ASSERT(!std::isnan(stateB.depthBiasSlopeScale)); |
| ASSERT(!std::isnan(stateA.depthBiasClamp)); |
| ASSERT(!std::isnan(stateB.depthBiasClamp)); |
| |
| if (stateA.depthWriteEnabled != stateB.depthWriteEnabled || |
| stateA.depthCompare != stateB.depthCompare || |
| stateA.depthBias != stateB.depthBias || |
| stateA.depthBiasSlopeScale != stateB.depthBiasSlopeScale || |
| stateA.depthBiasClamp != stateB.depthBiasClamp) { |
| return false; |
| } |
| if (stateA.stencilFront.compare != stateB.stencilFront.compare || |
| stateA.stencilFront.failOp != stateB.stencilFront.failOp || |
| stateA.stencilFront.depthFailOp != stateB.stencilFront.depthFailOp || |
| stateA.stencilFront.passOp != stateB.stencilFront.passOp) { |
| return false; |
| } |
| if (stateA.stencilBack.compare != stateB.stencilBack.compare || |
| stateA.stencilBack.failOp != stateB.stencilBack.failOp || |
| stateA.stencilBack.depthFailOp != stateB.stencilBack.depthFailOp || |
| stateA.stencilBack.passOp != stateB.stencilBack.passOp) { |
| return false; |
| } |
| if (stateA.stencilReadMask != stateB.stencilReadMask || |
| stateA.stencilWriteMask != stateB.stencilWriteMask) { |
| return false; |
| } |
| } |
| |
| // Check vertex state |
| if (a->mAttributeLocationsUsed != b->mAttributeLocationsUsed) { |
| return false; |
| } |
| |
| for (VertexAttributeLocation loc : IterateBitSet(a->mAttributeLocationsUsed)) { |
| const VertexAttributeInfo& descA = a->GetAttribute(loc); |
| const VertexAttributeInfo& descB = b->GetAttribute(loc); |
| if (descA.shaderLocation != descB.shaderLocation || |
| descA.vertexBufferSlot != descB.vertexBufferSlot || descA.offset != descB.offset || |
| descA.format != descB.format) { |
| return false; |
| } |
| } |
| |
| if (a->mVertexBufferSlotsUsed != b->mVertexBufferSlotsUsed) { |
| return false; |
| } |
| |
| for (VertexBufferSlot slot : IterateBitSet(a->mVertexBufferSlotsUsed)) { |
| const VertexBufferInfo& descA = a->GetVertexBuffer(slot); |
| const VertexBufferInfo& descB = b->GetVertexBuffer(slot); |
| if (descA.arrayStride != descB.arrayStride || descA.stepMode != descB.stepMode) { |
| return false; |
| } |
| } |
| |
| // Check primitive state |
| { |
| const PrimitiveState& stateA = a->mPrimitive; |
| const PrimitiveState& stateB = b->mPrimitive; |
| if (stateA.topology != stateB.topology || |
| stateA.stripIndexFormat != stateB.stripIndexFormat || |
| stateA.frontFace != stateB.frontFace || stateA.cullMode != stateB.cullMode || |
| a->mClampDepth != b->mClampDepth) { |
| return false; |
| } |
| } |
| |
| // Check multisample state |
| { |
| const MultisampleState& stateA = a->mMultisample; |
| const MultisampleState& stateB = b->mMultisample; |
| // Sample count already checked as part of the attachment state. |
| if (stateA.mask != stateB.mask || |
| stateA.alphaToCoverageEnabled != stateB.alphaToCoverageEnabled) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| } // namespace dawn_native |
