| // 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 "common/HashUtils.h" |
| #include "dawn_native/Commands.h" |
| #include "dawn_native/Device.h" |
| #include "dawn_native/ValidationUtils_autogen.h" |
| |
| #include <cmath> |
| |
| namespace dawn_native { |
| // Helper functions |
| namespace { |
| |
| MaybeError ValidateVertexAttributeDescriptor( |
| const VertexAttributeDescriptor* attribute, |
| uint64_t vertexBufferStride, |
| std::bitset<kMaxVertexAttributes>* attributesSetMask) { |
| DAWN_TRY(ValidateVertexFormat(attribute->format)); |
| |
| if (attribute->shaderLocation >= kMaxVertexAttributes) { |
| return DAWN_VALIDATION_ERROR("Setting attribute out of bounds"); |
| } |
| |
| // No underflow is possible because the max vertex format size is smaller than |
| // kMaxVertexAttributeEnd. |
| ASSERT(kMaxVertexAttributeEnd >= VertexFormatSize(attribute->format)); |
| if (attribute->offset > kMaxVertexAttributeEnd - VertexFormatSize(attribute->format)) { |
| return DAWN_VALIDATION_ERROR("Setting attribute offset out of bounds"); |
| } |
| |
| // No overflow is possible because the offset is already validated to be less |
| // than kMaxVertexAttributeEnd. |
| ASSERT(attribute->offset < kMaxVertexAttributeEnd); |
| if (vertexBufferStride > 0 && |
| attribute->offset + VertexFormatSize(attribute->format) > vertexBufferStride) { |
| return DAWN_VALIDATION_ERROR("Setting attribute offset out of bounds"); |
| } |
| |
| if (attribute->offset % 4 != 0) { |
| return DAWN_VALIDATION_ERROR("Attribute offset needs to be a multiple of 4 bytes"); |
| } |
| |
| if ((*attributesSetMask)[attribute->shaderLocation]) { |
| return DAWN_VALIDATION_ERROR("Setting already set attribute"); |
| } |
| |
| attributesSetMask->set(attribute->shaderLocation); |
| return {}; |
| } |
| |
| MaybeError ValidateVertexBufferLayoutDescriptor( |
| const VertexBufferLayoutDescriptor* buffer, |
| std::bitset<kMaxVertexAttributes>* attributesSetMask) { |
| DAWN_TRY(ValidateInputStepMode(buffer->stepMode)); |
| if (buffer->arrayStride > kMaxVertexBufferStride) { |
| return DAWN_VALIDATION_ERROR("Setting arrayStride out of bounds"); |
| } |
| |
| if (buffer->arrayStride % 4 != 0) { |
| return DAWN_VALIDATION_ERROR( |
| "arrayStride of Vertex buffer needs to be a multiple of 4 bytes"); |
| } |
| |
| for (uint32_t i = 0; i < buffer->attributeCount; ++i) { |
| DAWN_TRY(ValidateVertexAttributeDescriptor(&buffer->attributes[i], |
| buffer->arrayStride, attributesSetMask)); |
| } |
| |
| return {}; |
| } |
| |
| MaybeError ValidateVertexStateDescriptor( |
| const VertexStateDescriptor* descriptor, |
| std::bitset<kMaxVertexAttributes>* attributesSetMask) { |
| if (descriptor->nextInChain != nullptr) { |
| return DAWN_VALIDATION_ERROR("nextInChain must be nullptr"); |
| } |
| DAWN_TRY(ValidateIndexFormat(descriptor->indexFormat)); |
| |
| if (descriptor->vertexBufferCount > kMaxVertexBuffers) { |
| return DAWN_VALIDATION_ERROR("Vertex buffer count exceeds maximum"); |
| } |
| |
| uint32_t totalAttributesNum = 0; |
| for (uint32_t i = 0; i < descriptor->vertexBufferCount; ++i) { |
| DAWN_TRY(ValidateVertexBufferLayoutDescriptor(&descriptor->vertexBuffers[i], |
| attributesSetMask)); |
| totalAttributesNum += descriptor->vertexBuffers[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); |
| |
| return {}; |
| } |
| |
| MaybeError ValidateRasterizationStateDescriptor( |
| const RasterizationStateDescriptor* descriptor) { |
| if (descriptor->nextInChain != nullptr) { |
| return DAWN_VALIDATION_ERROR("nextInChain must be nullptr"); |
| } |
| |
| DAWN_TRY(ValidateFrontFace(descriptor->frontFace)); |
| DAWN_TRY(ValidateCullMode(descriptor->cullMode)); |
| |
| if (std::isnan(descriptor->depthBiasSlopeScale) || |
| std::isnan(descriptor->depthBiasClamp)) { |
| return DAWN_VALIDATION_ERROR("Depth bias parameters must not be NaN."); |
| } |
| |
| return {}; |
| } |
| |
| MaybeError ValidateColorStateDescriptor(const DeviceBase* device, |
| const ColorStateDescriptor& descriptor, |
| Format::Type fragmentOutputBaseType) { |
| if (descriptor.nextInChain != nullptr) { |
| return DAWN_VALIDATION_ERROR("nextInChain must be nullptr"); |
| } |
| DAWN_TRY(ValidateBlendOperation(descriptor.alphaBlend.operation)); |
| DAWN_TRY(ValidateBlendFactor(descriptor.alphaBlend.srcFactor)); |
| DAWN_TRY(ValidateBlendFactor(descriptor.alphaBlend.dstFactor)); |
| DAWN_TRY(ValidateBlendOperation(descriptor.colorBlend.operation)); |
| DAWN_TRY(ValidateBlendFactor(descriptor.colorBlend.srcFactor)); |
| DAWN_TRY(ValidateBlendFactor(descriptor.colorBlend.dstFactor)); |
| DAWN_TRY(ValidateColorWriteMask(descriptor.writeMask)); |
| |
| const Format* format; |
| DAWN_TRY_ASSIGN(format, device->GetInternalFormat(descriptor.format)); |
| if (!format->IsColor() || !format->isRenderable) { |
| return DAWN_VALIDATION_ERROR("Color format must be color renderable"); |
| } |
| if (fragmentOutputBaseType != Format::Type::Other && |
| fragmentOutputBaseType != format->type) { |
| return DAWN_VALIDATION_ERROR( |
| "Color format must match the fragment stage output type"); |
| } |
| |
| return {}; |
| } |
| |
| MaybeError ValidateDepthStencilStateDescriptor( |
| const DeviceBase* device, |
| const DepthStencilStateDescriptor* 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)); |
| if (!format->HasDepthOrStencil() || !format->isRenderable) { |
| return DAWN_VALIDATION_ERROR( |
| "Depth stencil format must be depth-stencil renderable"); |
| } |
| |
| 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); |
| default: |
| UNREACHABLE(); |
| } |
| } |
| |
| uint32_t VertexFormatNumComponents(wgpu::VertexFormat format) { |
| switch (format) { |
| case wgpu::VertexFormat::UChar4: |
| case wgpu::VertexFormat::Char4: |
| case wgpu::VertexFormat::UChar4Norm: |
| case wgpu::VertexFormat::Char4Norm: |
| case wgpu::VertexFormat::UShort4: |
| case wgpu::VertexFormat::Short4: |
| case wgpu::VertexFormat::UShort4Norm: |
| case wgpu::VertexFormat::Short4Norm: |
| case wgpu::VertexFormat::Half4: |
| case wgpu::VertexFormat::Float4: |
| case wgpu::VertexFormat::UInt4: |
| case wgpu::VertexFormat::Int4: |
| return 4; |
| case wgpu::VertexFormat::Float3: |
| case wgpu::VertexFormat::UInt3: |
| case wgpu::VertexFormat::Int3: |
| return 3; |
| case wgpu::VertexFormat::UChar2: |
| case wgpu::VertexFormat::Char2: |
| case wgpu::VertexFormat::UChar2Norm: |
| case wgpu::VertexFormat::Char2Norm: |
| case wgpu::VertexFormat::UShort2: |
| case wgpu::VertexFormat::Short2: |
| case wgpu::VertexFormat::UShort2Norm: |
| case wgpu::VertexFormat::Short2Norm: |
| case wgpu::VertexFormat::Half2: |
| case wgpu::VertexFormat::Float2: |
| case wgpu::VertexFormat::UInt2: |
| case wgpu::VertexFormat::Int2: |
| return 2; |
| case wgpu::VertexFormat::Float: |
| case wgpu::VertexFormat::UInt: |
| case wgpu::VertexFormat::Int: |
| return 1; |
| default: |
| UNREACHABLE(); |
| } |
| } |
| |
| size_t VertexFormatComponentSize(wgpu::VertexFormat format) { |
| switch (format) { |
| case wgpu::VertexFormat::UChar2: |
| case wgpu::VertexFormat::UChar4: |
| case wgpu::VertexFormat::Char2: |
| case wgpu::VertexFormat::Char4: |
| case wgpu::VertexFormat::UChar2Norm: |
| case wgpu::VertexFormat::UChar4Norm: |
| case wgpu::VertexFormat::Char2Norm: |
| case wgpu::VertexFormat::Char4Norm: |
| return sizeof(char); |
| case wgpu::VertexFormat::UShort2: |
| case wgpu::VertexFormat::UShort4: |
| case wgpu::VertexFormat::UShort2Norm: |
| case wgpu::VertexFormat::UShort4Norm: |
| case wgpu::VertexFormat::Short2: |
| case wgpu::VertexFormat::Short4: |
| case wgpu::VertexFormat::Short2Norm: |
| case wgpu::VertexFormat::Short4Norm: |
| case wgpu::VertexFormat::Half2: |
| case wgpu::VertexFormat::Half4: |
| return sizeof(uint16_t); |
| case wgpu::VertexFormat::Float: |
| case wgpu::VertexFormat::Float2: |
| case wgpu::VertexFormat::Float3: |
| case wgpu::VertexFormat::Float4: |
| return sizeof(float); |
| case wgpu::VertexFormat::UInt: |
| case wgpu::VertexFormat::UInt2: |
| case wgpu::VertexFormat::UInt3: |
| case wgpu::VertexFormat::UInt4: |
| case wgpu::VertexFormat::Int: |
| case wgpu::VertexFormat::Int2: |
| case wgpu::VertexFormat::Int3: |
| case wgpu::VertexFormat::Int4: |
| return sizeof(int32_t); |
| default: |
| UNREACHABLE(); |
| } |
| } |
| |
| size_t VertexFormatSize(wgpu::VertexFormat format) { |
| return VertexFormatNumComponents(format) * VertexFormatComponentSize(format); |
| } |
| |
| MaybeError ValidateRenderPipelineDescriptor(const DeviceBase* device, |
| const RenderPipelineDescriptor* descriptor) { |
| if (descriptor->nextInChain != nullptr) { |
| return DAWN_VALIDATION_ERROR("nextInChain must be nullptr"); |
| } |
| |
| if (descriptor->layout != nullptr) { |
| DAWN_TRY(device->ValidateObject(descriptor->layout)); |
| } |
| |
| // TODO(crbug.com/dawn/136): Support vertex-only pipelines. |
| if (descriptor->fragmentStage == nullptr) { |
| return DAWN_VALIDATION_ERROR("Null fragment stage is not supported (yet)"); |
| } |
| |
| std::bitset<kMaxVertexAttributes> attributesSetMask; |
| if (descriptor->vertexState) { |
| DAWN_TRY(ValidateVertexStateDescriptor(descriptor->vertexState, &attributesSetMask)); |
| } |
| |
| DAWN_TRY(ValidatePrimitiveTopology(descriptor->primitiveTopology)); |
| DAWN_TRY(ValidateProgrammableStageDescriptor( |
| device, &descriptor->vertexStage, descriptor->layout, SingleShaderStage::Vertex)); |
| DAWN_TRY(ValidateProgrammableStageDescriptor( |
| device, descriptor->fragmentStage, descriptor->layout, SingleShaderStage::Fragment)); |
| |
| if (descriptor->rasterizationState) { |
| DAWN_TRY(ValidateRasterizationStateDescriptor(descriptor->rasterizationState)); |
| } |
| |
| if ((descriptor->vertexStage.module->GetUsedVertexAttributes() & ~attributesSetMask) |
| .any()) { |
| return DAWN_VALIDATION_ERROR( |
| "Pipeline vertex stage uses vertex buffers not in the vertex state"); |
| } |
| |
| if (!IsValidSampleCount(descriptor->sampleCount)) { |
| return DAWN_VALIDATION_ERROR("Sample count is not supported"); |
| } |
| |
| if (descriptor->colorStateCount > kMaxColorAttachments) { |
| return DAWN_VALIDATION_ERROR("Color States number exceeds maximum"); |
| } |
| |
| if (descriptor->colorStateCount == 0 && !descriptor->depthStencilState) { |
| return DAWN_VALIDATION_ERROR("Should have at least one attachment"); |
| } |
| |
| ASSERT(descriptor->fragmentStage != nullptr); |
| const ShaderModuleBase::FragmentOutputBaseTypes& fragmentOutputBaseTypes = |
| descriptor->fragmentStage->module->GetFragmentOutputBaseTypes(); |
| for (uint32_t i = 0; i < descriptor->colorStateCount; ++i) { |
| DAWN_TRY(ValidateColorStateDescriptor(device, descriptor->colorStates[i], |
| fragmentOutputBaseTypes[i])); |
| } |
| |
| if (descriptor->depthStencilState) { |
| DAWN_TRY(ValidateDepthStencilStateDescriptor(device, descriptor->depthStencilState)); |
| } |
| |
| if (descriptor->sampleMask != 0xFFFFFFFF) { |
| return DAWN_VALIDATION_ERROR("sampleMask must be 0xFFFFFFFF (for now)"); |
| } |
| |
| if (descriptor->alphaToCoverageEnabled) { |
| return DAWN_VALIDATION_ERROR("alphaToCoverageEnabled isn't supported (yet)"); |
| } |
| |
| return {}; |
| } |
| |
| bool StencilTestEnabled(const DepthStencilStateDescriptor* mDepthStencilState) { |
| return mDepthStencilState->stencilBack.compare != wgpu::CompareFunction::Always || |
| mDepthStencilState->stencilBack.failOp != wgpu::StencilOperation::Keep || |
| mDepthStencilState->stencilBack.depthFailOp != wgpu::StencilOperation::Keep || |
| mDepthStencilState->stencilBack.passOp != wgpu::StencilOperation::Keep || |
| mDepthStencilState->stencilFront.compare != wgpu::CompareFunction::Always || |
| mDepthStencilState->stencilFront.failOp != wgpu::StencilOperation::Keep || |
| mDepthStencilState->stencilFront.depthFailOp != wgpu::StencilOperation::Keep || |
| mDepthStencilState->stencilFront.passOp != wgpu::StencilOperation::Keep; |
| } |
| |
| bool BlendEnabled(const ColorStateDescriptor* mColorState) { |
| return mColorState->alphaBlend.operation != wgpu::BlendOperation::Add || |
| mColorState->alphaBlend.srcFactor != wgpu::BlendFactor::One || |
| mColorState->alphaBlend.dstFactor != wgpu::BlendFactor::Zero || |
| mColorState->colorBlend.operation != wgpu::BlendOperation::Add || |
| mColorState->colorBlend.srcFactor != wgpu::BlendFactor::One || |
| mColorState->colorBlend.dstFactor != wgpu::BlendFactor::Zero; |
| } |
| |
| // RenderPipelineBase |
| |
| RenderPipelineBase::RenderPipelineBase(DeviceBase* device, |
| const RenderPipelineDescriptor* descriptor) |
| : PipelineBase(device, |
| descriptor->layout, |
| wgpu::ShaderStage::Vertex | wgpu::ShaderStage::Fragment), |
| mAttachmentState(device->GetOrCreateAttachmentState(descriptor)), |
| mPrimitiveTopology(descriptor->primitiveTopology), |
| mSampleMask(descriptor->sampleMask), |
| mAlphaToCoverageEnabled(descriptor->alphaToCoverageEnabled), |
| mVertexModule(descriptor->vertexStage.module), |
| mVertexEntryPoint(descriptor->vertexStage.entryPoint), |
| mFragmentModule(descriptor->fragmentStage->module), |
| mFragmentEntryPoint(descriptor->fragmentStage->entryPoint) { |
| if (descriptor->vertexState != nullptr) { |
| mVertexState = *descriptor->vertexState; |
| } else { |
| mVertexState = VertexStateDescriptor(); |
| } |
| |
| for (uint32_t slot = 0; slot < mVertexState.vertexBufferCount; ++slot) { |
| if (mVertexState.vertexBuffers[slot].attributeCount == 0) { |
| continue; |
| } |
| |
| mVertexBufferSlotsUsed.set(slot); |
| mVertexBufferInfos[slot].arrayStride = mVertexState.vertexBuffers[slot].arrayStride; |
| mVertexBufferInfos[slot].stepMode = mVertexState.vertexBuffers[slot].stepMode; |
| |
| uint32_t location = 0; |
| for (uint32_t i = 0; i < mVertexState.vertexBuffers[slot].attributeCount; ++i) { |
| location = mVertexState.vertexBuffers[slot].attributes[i].shaderLocation; |
| mAttributeLocationsUsed.set(location); |
| mAttributeInfos[location].shaderLocation = location; |
| mAttributeInfos[location].vertexBufferSlot = slot; |
| mAttributeInfos[location].offset = |
| mVertexState.vertexBuffers[slot].attributes[i].offset; |
| mAttributeInfos[location].format = |
| mVertexState.vertexBuffers[slot].attributes[i].format; |
| } |
| } |
| |
| if (descriptor->rasterizationState != nullptr) { |
| mRasterizationState = *descriptor->rasterizationState; |
| } else { |
| mRasterizationState = RasterizationStateDescriptor(); |
| } |
| |
| if (mAttachmentState->HasDepthStencilAttachment()) { |
| mDepthStencilState = *descriptor->depthStencilState; |
| } 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 |
| // mDepthStencilState. |
| mDepthStencilState.depthCompare = wgpu::CompareFunction::Always; |
| mDepthStencilState.depthWriteEnabled = false; |
| mDepthStencilState.stencilBack.compare = wgpu::CompareFunction::Always; |
| mDepthStencilState.stencilBack.failOp = wgpu::StencilOperation::Keep; |
| mDepthStencilState.stencilBack.depthFailOp = wgpu::StencilOperation::Keep; |
| mDepthStencilState.stencilBack.passOp = wgpu::StencilOperation::Keep; |
| mDepthStencilState.stencilFront.compare = wgpu::CompareFunction::Always; |
| mDepthStencilState.stencilFront.failOp = wgpu::StencilOperation::Keep; |
| mDepthStencilState.stencilFront.depthFailOp = wgpu::StencilOperation::Keep; |
| mDepthStencilState.stencilFront.passOp = wgpu::StencilOperation::Keep; |
| mDepthStencilState.stencilReadMask = 0xff; |
| mDepthStencilState.stencilWriteMask = 0xff; |
| } |
| |
| for (uint32_t i : IterateBitSet(mAttachmentState->GetColorAttachmentsMask())) { |
| mColorStates[i] = descriptor->colorStates[i]; |
| } |
| |
| // TODO(cwallez@chromium.org): Check against the shader module that the correct color |
| // attachment are set? |
| } |
| |
| RenderPipelineBase::RenderPipelineBase(DeviceBase* device, ObjectBase::ErrorTag tag) |
| : PipelineBase(device, tag) { |
| } |
| |
| // static |
| RenderPipelineBase* RenderPipelineBase::MakeError(DeviceBase* device) { |
| return new RenderPipelineBase(device, ObjectBase::kError); |
| } |
| |
| RenderPipelineBase::~RenderPipelineBase() { |
| if (IsCachedReference()) { |
| GetDevice()->UncacheRenderPipeline(this); |
| } |
| } |
| |
| const VertexStateDescriptor* RenderPipelineBase::GetVertexStateDescriptor() const { |
| ASSERT(!IsError()); |
| return &mVertexState; |
| } |
| |
| const std::bitset<kMaxVertexAttributes>& RenderPipelineBase::GetAttributeLocationsUsed() const { |
| ASSERT(!IsError()); |
| return mAttributeLocationsUsed; |
| } |
| |
| const VertexAttributeInfo& RenderPipelineBase::GetAttribute(uint32_t location) const { |
| ASSERT(!IsError()); |
| ASSERT(mAttributeLocationsUsed[location]); |
| return mAttributeInfos[location]; |
| } |
| |
| const std::bitset<kMaxVertexBuffers>& RenderPipelineBase::GetVertexBufferSlotsUsed() const { |
| ASSERT(!IsError()); |
| return mVertexBufferSlotsUsed; |
| } |
| |
| const VertexBufferInfo& RenderPipelineBase::GetVertexBuffer(uint32_t slot) const { |
| ASSERT(!IsError()); |
| ASSERT(mVertexBufferSlotsUsed[slot]); |
| return mVertexBufferInfos[slot]; |
| } |
| |
| const ColorStateDescriptor* RenderPipelineBase::GetColorStateDescriptor( |
| uint32_t attachmentSlot) const { |
| ASSERT(!IsError()); |
| ASSERT(attachmentSlot < mColorStates.size()); |
| return &mColorStates[attachmentSlot]; |
| } |
| |
| const DepthStencilStateDescriptor* RenderPipelineBase::GetDepthStencilStateDescriptor() const { |
| ASSERT(!IsError()); |
| return &mDepthStencilState; |
| } |
| |
| wgpu::PrimitiveTopology RenderPipelineBase::GetPrimitiveTopology() const { |
| ASSERT(!IsError()); |
| return mPrimitiveTopology; |
| } |
| |
| wgpu::CullMode RenderPipelineBase::GetCullMode() const { |
| ASSERT(!IsError()); |
| return mRasterizationState.cullMode; |
| } |
| |
| wgpu::FrontFace RenderPipelineBase::GetFrontFace() const { |
| ASSERT(!IsError()); |
| return mRasterizationState.frontFace; |
| } |
| |
| std::bitset<kMaxColorAttachments> RenderPipelineBase::GetColorAttachmentsMask() const { |
| ASSERT(!IsError()); |
| return mAttachmentState->GetColorAttachmentsMask(); |
| } |
| |
| bool RenderPipelineBase::HasDepthStencilAttachment() const { |
| ASSERT(!IsError()); |
| return mAttachmentState->HasDepthStencilAttachment(); |
| } |
| |
| wgpu::TextureFormat RenderPipelineBase::GetColorAttachmentFormat(uint32_t attachment) const { |
| ASSERT(!IsError()); |
| return mColorStates[attachment].format; |
| } |
| |
| wgpu::TextureFormat RenderPipelineBase::GetDepthStencilFormat() const { |
| ASSERT(!IsError()); |
| ASSERT(mAttachmentState->HasDepthStencilAttachment()); |
| return mDepthStencilState.format; |
| } |
| |
| uint32_t RenderPipelineBase::GetSampleCount() const { |
| ASSERT(!IsError()); |
| return mAttachmentState->GetSampleCount(); |
| } |
| |
| const AttachmentState* RenderPipelineBase::GetAttachmentState() const { |
| ASSERT(!IsError()); |
| |
| return mAttachmentState.Get(); |
| } |
| |
| std::bitset<kMaxVertexAttributes> RenderPipelineBase::GetAttributesUsingVertexBuffer( |
| uint32_t slot) const { |
| ASSERT(!IsError()); |
| return attributesUsingVertexBuffer[slot]; |
| } |
| |
| size_t RenderPipelineBase::HashFunc::operator()(const RenderPipelineBase* pipeline) const { |
| size_t hash = 0; |
| |
| // Hash modules and layout |
| HashCombine(&hash, pipeline->GetLayout()); |
| HashCombine(&hash, pipeline->mVertexModule.Get(), pipeline->mFragmentEntryPoint); |
| HashCombine(&hash, pipeline->mFragmentModule.Get(), pipeline->mFragmentEntryPoint); |
| |
| // Hierarchically hash the attachment state. |
| // It contains the attachments set, texture formats, and sample count. |
| HashCombine(&hash, pipeline->mAttachmentState.Get()); |
| |
| // Hash attachments |
| for (uint32_t i : IterateBitSet(pipeline->mAttachmentState->GetColorAttachmentsMask())) { |
| const ColorStateDescriptor& desc = *pipeline->GetColorStateDescriptor(i); |
| HashCombine(&hash, desc.writeMask); |
| HashCombine(&hash, desc.colorBlend.operation, desc.colorBlend.srcFactor, |
| desc.colorBlend.dstFactor); |
| HashCombine(&hash, desc.alphaBlend.operation, desc.alphaBlend.srcFactor, |
| desc.alphaBlend.dstFactor); |
| } |
| |
| if (pipeline->mAttachmentState->HasDepthStencilAttachment()) { |
| const DepthStencilStateDescriptor& desc = pipeline->mDepthStencilState; |
| HashCombine(&hash, desc.depthWriteEnabled, desc.depthCompare); |
| HashCombine(&hash, desc.stencilReadMask, desc.stencilWriteMask); |
| HashCombine(&hash, desc.stencilFront.compare, desc.stencilFront.failOp, |
| desc.stencilFront.depthFailOp, desc.stencilFront.passOp); |
| HashCombine(&hash, desc.stencilBack.compare, desc.stencilBack.failOp, |
| desc.stencilBack.depthFailOp, desc.stencilBack.passOp); |
| } |
| |
| // Hash vertex state |
| HashCombine(&hash, pipeline->mAttributeLocationsUsed); |
| for (uint32_t i : IterateBitSet(pipeline->mAttributeLocationsUsed)) { |
| const VertexAttributeInfo& desc = pipeline->GetAttribute(i); |
| HashCombine(&hash, desc.shaderLocation, desc.vertexBufferSlot, desc.offset, |
| desc.format); |
| } |
| |
| HashCombine(&hash, pipeline->mVertexBufferSlotsUsed); |
| for (uint32_t i : IterateBitSet(pipeline->mVertexBufferSlotsUsed)) { |
| const VertexBufferInfo& desc = pipeline->GetVertexBuffer(i); |
| HashCombine(&hash, desc.arrayStride, desc.stepMode); |
| } |
| |
| HashCombine(&hash, pipeline->mVertexState.indexFormat); |
| |
| // Hash rasterization state |
| { |
| const RasterizationStateDescriptor& desc = pipeline->mRasterizationState; |
| HashCombine(&hash, desc.frontFace, desc.cullMode); |
| HashCombine(&hash, desc.depthBias, desc.depthBiasSlopeScale, desc.depthBiasClamp); |
| } |
| |
| // Hash other state |
| HashCombine(&hash, pipeline->mPrimitiveTopology, pipeline->mSampleMask, |
| pipeline->mAlphaToCoverageEnabled); |
| |
| return hash; |
| } |
| |
| bool RenderPipelineBase::EqualityFunc::operator()(const RenderPipelineBase* a, |
| const RenderPipelineBase* b) const { |
| // Check modules and layout |
| if (a->GetLayout() != b->GetLayout() || a->mVertexModule.Get() != b->mVertexModule.Get() || |
| a->mVertexEntryPoint != b->mVertexEntryPoint || |
| a->mFragmentModule.Get() != b->mFragmentModule.Get() || |
| a->mFragmentEntryPoint != b->mFragmentEntryPoint) { |
| 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 (uint32_t i : IterateBitSet(a->mAttachmentState->GetColorAttachmentsMask())) { |
| const ColorStateDescriptor& descA = *a->GetColorStateDescriptor(i); |
| const ColorStateDescriptor& descB = *b->GetColorStateDescriptor(i); |
| if (descA.writeMask != descB.writeMask) { |
| return false; |
| } |
| if (descA.colorBlend.operation != descB.colorBlend.operation || |
| descA.colorBlend.srcFactor != descB.colorBlend.srcFactor || |
| descA.colorBlend.dstFactor != descB.colorBlend.dstFactor) { |
| return false; |
| } |
| if (descA.alphaBlend.operation != descB.alphaBlend.operation || |
| descA.alphaBlend.srcFactor != descB.alphaBlend.srcFactor || |
| descA.alphaBlend.dstFactor != descB.alphaBlend.dstFactor) { |
| return false; |
| } |
| } |
| |
| if (a->mAttachmentState->HasDepthStencilAttachment()) { |
| const DepthStencilStateDescriptor& descA = a->mDepthStencilState; |
| const DepthStencilStateDescriptor& descB = b->mDepthStencilState; |
| if (descA.depthWriteEnabled != descB.depthWriteEnabled || |
| descA.depthCompare != descB.depthCompare) { |
| return false; |
| } |
| if (descA.stencilReadMask != descB.stencilReadMask || |
| descA.stencilWriteMask != descB.stencilWriteMask) { |
| return false; |
| } |
| if (descA.stencilFront.compare != descB.stencilFront.compare || |
| descA.stencilFront.failOp != descB.stencilFront.failOp || |
| descA.stencilFront.depthFailOp != descB.stencilFront.depthFailOp || |
| descA.stencilFront.passOp != descB.stencilFront.passOp) { |
| return false; |
| } |
| if (descA.stencilBack.compare != descB.stencilBack.compare || |
| descA.stencilBack.failOp != descB.stencilBack.failOp || |
| descA.stencilBack.depthFailOp != descB.stencilBack.depthFailOp || |
| descA.stencilBack.passOp != descB.stencilBack.passOp) { |
| return false; |
| } |
| } |
| |
| // Check vertex state |
| if (a->mAttributeLocationsUsed != b->mAttributeLocationsUsed) { |
| return false; |
| } |
| |
| for (uint32_t i : IterateBitSet(a->mAttributeLocationsUsed)) { |
| const VertexAttributeInfo& descA = a->GetAttribute(i); |
| const VertexAttributeInfo& descB = b->GetAttribute(i); |
| 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 (uint32_t i : IterateBitSet(a->mVertexBufferSlotsUsed)) { |
| const VertexBufferInfo& descA = a->GetVertexBuffer(i); |
| const VertexBufferInfo& descB = b->GetVertexBuffer(i); |
| if (descA.arrayStride != descB.arrayStride || descA.stepMode != descB.stepMode) { |
| return false; |
| } |
| } |
| |
| if (a->mVertexState.indexFormat != b->mVertexState.indexFormat) { |
| return false; |
| } |
| |
| // Check rasterization state |
| { |
| const RasterizationStateDescriptor& descA = a->mRasterizationState; |
| const RasterizationStateDescriptor& descB = b->mRasterizationState; |
| if (descA.frontFace != descB.frontFace || descA.cullMode != descB.cullMode) { |
| return false; |
| } |
| |
| ASSERT(!std::isnan(descA.depthBiasSlopeScale)); |
| ASSERT(!std::isnan(descB.depthBiasSlopeScale)); |
| ASSERT(!std::isnan(descA.depthBiasClamp)); |
| ASSERT(!std::isnan(descB.depthBiasClamp)); |
| |
| if (descA.depthBias != descB.depthBias || |
| descA.depthBiasSlopeScale != descB.depthBiasSlopeScale || |
| descA.depthBiasClamp != descB.depthBiasClamp) { |
| return false; |
| } |
| } |
| |
| // Check other state |
| if (a->mPrimitiveTopology != b->mPrimitiveTopology || a->mSampleMask != b->mSampleMask || |
| a->mAlphaToCoverageEnabled != b->mAlphaToCoverageEnabled) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| } // namespace dawn_native |
