| /* |
| * Copyright (C) 2019 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "GPUPipelineMetalConvertLayout.h" |
| |
| #include "GPUPipelineLayout.h" |
| |
| #if ENABLE(WEBGPU) |
| |
| namespace WebCore { |
| |
| static OptionSet<WHLSL::ShaderStage> convertShaderStageFlags(GPUShaderStageFlags flags) |
| { |
| OptionSet<WHLSL::ShaderStage> result; |
| if (flags & GPUShaderStageBit::Flags::Vertex) |
| result.add(WHLSL::ShaderStage::Vertex); |
| if (flags & GPUShaderStageBit::Flags::Fragment) |
| result.add(WHLSL::ShaderStage::Fragment); |
| if (flags & GPUShaderStageBit::Flags::Compute) |
| result.add(WHLSL::ShaderStage::Compute); |
| return result; |
| } |
| |
| static Optional<WHLSL::Binding::BindingDetails> convertBindingType(GPUBindGroupLayout::InternalBindingDetails internalBindingDetails) |
| { |
| return WTF::visit(WTF::makeVisitor([&](GPUBindGroupLayout::UniformBuffer uniformBuffer) -> Optional<WHLSL::Binding::BindingDetails> { |
| return { WHLSL::UniformBufferBinding { uniformBuffer.internalLengthName } }; |
| }, [&](GPUBindGroupLayout::DynamicUniformBuffer) -> Optional<WHLSL::Binding::BindingDetails> { |
| return WTF::nullopt; |
| }, [&](GPUBindGroupLayout::Sampler) -> Optional<WHLSL::Binding::BindingDetails> { |
| return { WHLSL::SamplerBinding { } }; |
| }, [&](GPUBindGroupLayout::SampledTexture) -> Optional<WHLSL::Binding::BindingDetails> { |
| return { WHLSL::TextureBinding { } }; |
| }, [&](GPUBindGroupLayout::StorageBuffer storageBuffer) -> Optional<WHLSL::Binding::BindingDetails> { |
| return { WHLSL::StorageBufferBinding { storageBuffer.internalLengthName } }; |
| }, [&](GPUBindGroupLayout::DynamicStorageBuffer) -> Optional<WHLSL::Binding::BindingDetails> { |
| return WTF::nullopt; |
| }), internalBindingDetails); |
| } |
| |
| Optional<WHLSL::Layout> convertLayout(const GPUPipelineLayout& layout) |
| { |
| WHLSL::Layout result; |
| if (layout.bindGroupLayouts().size() > std::numeric_limits<unsigned>::max()) |
| return WTF::nullopt; |
| for (size_t i = 0; i < layout.bindGroupLayouts().size(); ++i) { |
| const auto& bindGroupLayout = layout.bindGroupLayouts()[i]; |
| WHLSL::BindGroup bindGroup; |
| bindGroup.name = static_cast<unsigned>(i); |
| for (const auto& keyValuePair : bindGroupLayout->bindingsMap()) { |
| const auto& bindingDetails = keyValuePair.value; |
| WHLSL::Binding binding; |
| binding.visibility = convertShaderStageFlags(bindingDetails.externalBinding.visibility); |
| if (auto bindingType = convertBindingType(bindingDetails.internalBindingDetails)) |
| binding.binding = *bindingType; |
| else |
| return WTF::nullopt; |
| if (bindingDetails.externalBinding.binding > std::numeric_limits<unsigned>::max()) |
| return WTF::nullopt; |
| binding.externalName = bindingDetails.externalBinding.binding; |
| binding.internalName = bindingDetails.internalName; |
| bindGroup.bindings.append(WTFMove(binding)); |
| } |
| result.append(WTFMove(bindGroup)); |
| } |
| return result; |
| } |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(WEBGPU) |