| // 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/metal/CommandBufferMTL.h" |
| |
| #include "dawn_native/BindGroup.h" |
| #include "dawn_native/BindGroupTracker.h" |
| #include "dawn_native/CommandEncoder.h" |
| #include "dawn_native/Commands.h" |
| #include "dawn_native/RenderBundle.h" |
| #include "dawn_native/metal/BufferMTL.h" |
| #include "dawn_native/metal/ComputePipelineMTL.h" |
| #include "dawn_native/metal/DeviceMTL.h" |
| #include "dawn_native/metal/PipelineLayoutMTL.h" |
| #include "dawn_native/metal/RenderPipelineMTL.h" |
| #include "dawn_native/metal/SamplerMTL.h" |
| #include "dawn_native/metal/TextureMTL.h" |
| |
| namespace dawn_native { namespace metal { |
| |
| struct GlobalEncoders { |
| id<MTLBlitCommandEncoder> blit = nil; |
| |
| void Finish() { |
| if (blit != nil) { |
| [blit endEncoding]; |
| blit = nil; // This will be autoreleased. |
| } |
| } |
| |
| void EnsureBlit(id<MTLCommandBuffer> commandBuffer) { |
| if (blit == nil) { |
| blit = [commandBuffer blitCommandEncoder]; |
| } |
| } |
| }; |
| |
| namespace { |
| |
| // Creates an autoreleased MTLRenderPassDescriptor matching desc |
| MTLRenderPassDescriptor* CreateMTLRenderPassDescriptor(BeginRenderPassCmd* renderPass) { |
| MTLRenderPassDescriptor* descriptor = [MTLRenderPassDescriptor renderPassDescriptor]; |
| |
| for (uint32_t i : |
| IterateBitSet(renderPass->attachmentState->GetColorAttachmentsMask())) { |
| auto& attachmentInfo = renderPass->colorAttachments[i]; |
| |
| if (attachmentInfo.loadOp == wgpu::LoadOp::Clear) { |
| descriptor.colorAttachments[i].loadAction = MTLLoadActionClear; |
| descriptor.colorAttachments[i].clearColor = |
| MTLClearColorMake(attachmentInfo.clearColor.r, attachmentInfo.clearColor.g, |
| attachmentInfo.clearColor.b, attachmentInfo.clearColor.a); |
| } else { |
| descriptor.colorAttachments[i].loadAction = MTLLoadActionLoad; |
| } |
| |
| descriptor.colorAttachments[i].texture = |
| ToBackend(attachmentInfo.view->GetTexture())->GetMTLTexture(); |
| descriptor.colorAttachments[i].level = attachmentInfo.view->GetBaseMipLevel(); |
| descriptor.colorAttachments[i].slice = attachmentInfo.view->GetBaseArrayLayer(); |
| |
| if (attachmentInfo.storeOp == wgpu::StoreOp::Store) { |
| if (attachmentInfo.resolveTarget.Get() != nullptr) { |
| descriptor.colorAttachments[i].resolveTexture = |
| ToBackend(attachmentInfo.resolveTarget->GetTexture())->GetMTLTexture(); |
| descriptor.colorAttachments[i].resolveLevel = |
| attachmentInfo.resolveTarget->GetBaseMipLevel(); |
| descriptor.colorAttachments[i].resolveSlice = |
| attachmentInfo.resolveTarget->GetBaseArrayLayer(); |
| descriptor.colorAttachments[i].storeAction = |
| MTLStoreActionStoreAndMultisampleResolve; |
| } else { |
| descriptor.colorAttachments[i].storeAction = MTLStoreActionStore; |
| } |
| } |
| } |
| |
| if (renderPass->attachmentState->HasDepthStencilAttachment()) { |
| auto& attachmentInfo = renderPass->depthStencilAttachment; |
| |
| // TODO(jiawei.shao@intel.com): support rendering into a layer of a texture. |
| id<MTLTexture> texture = |
| ToBackend(attachmentInfo.view->GetTexture())->GetMTLTexture(); |
| const Format& format = attachmentInfo.view->GetTexture()->GetFormat(); |
| |
| if (format.HasDepth()) { |
| descriptor.depthAttachment.texture = texture; |
| descriptor.depthAttachment.storeAction = MTLStoreActionStore; |
| |
| if (attachmentInfo.depthLoadOp == wgpu::LoadOp::Clear) { |
| descriptor.depthAttachment.loadAction = MTLLoadActionClear; |
| descriptor.depthAttachment.clearDepth = attachmentInfo.clearDepth; |
| } else { |
| descriptor.depthAttachment.loadAction = MTLLoadActionLoad; |
| } |
| } |
| |
| if (format.HasStencil()) { |
| descriptor.stencilAttachment.texture = texture; |
| descriptor.stencilAttachment.storeAction = MTLStoreActionStore; |
| |
| if (attachmentInfo.stencilLoadOp == wgpu::LoadOp::Clear) { |
| descriptor.stencilAttachment.loadAction = MTLLoadActionClear; |
| descriptor.stencilAttachment.clearStencil = attachmentInfo.clearStencil; |
| } else { |
| descriptor.stencilAttachment.loadAction = MTLLoadActionLoad; |
| } |
| } |
| } |
| |
| return descriptor; |
| } |
| |
| // Helper function for Toggle EmulateStoreAndMSAAResolve |
| void ResolveInAnotherRenderPass( |
| id<MTLCommandBuffer> commandBuffer, |
| const MTLRenderPassDescriptor* mtlRenderPass, |
| const std::array<id<MTLTexture>, kMaxColorAttachments>& resolveTextures) { |
| MTLRenderPassDescriptor* mtlRenderPassForResolve = |
| [MTLRenderPassDescriptor renderPassDescriptor]; |
| for (uint32_t i = 0; i < kMaxColorAttachments; ++i) { |
| if (resolveTextures[i] == nil) { |
| continue; |
| } |
| |
| mtlRenderPassForResolve.colorAttachments[i].texture = |
| mtlRenderPass.colorAttachments[i].texture; |
| mtlRenderPassForResolve.colorAttachments[i].loadAction = MTLLoadActionLoad; |
| mtlRenderPassForResolve.colorAttachments[i].storeAction = |
| MTLStoreActionMultisampleResolve; |
| mtlRenderPassForResolve.colorAttachments[i].resolveTexture = resolveTextures[i]; |
| mtlRenderPassForResolve.colorAttachments[i].resolveLevel = |
| mtlRenderPass.colorAttachments[i].resolveLevel; |
| mtlRenderPassForResolve.colorAttachments[i].resolveSlice = |
| mtlRenderPass.colorAttachments[i].resolveSlice; |
| } |
| |
| id<MTLRenderCommandEncoder> encoder = |
| [commandBuffer renderCommandEncoderWithDescriptor:mtlRenderPassForResolve]; |
| [encoder endEncoding]; |
| } |
| |
| // Helper functions for Toggle AlwaysResolveIntoZeroLevelAndLayer |
| id<MTLTexture> CreateResolveTextureForWorkaround(Device* device, |
| MTLPixelFormat mtlFormat, |
| uint32_t width, |
| uint32_t height) { |
| MTLTextureDescriptor* mtlDesc = [MTLTextureDescriptor new]; |
| mtlDesc.textureType = MTLTextureType2D; |
| mtlDesc.usage = MTLTextureUsageRenderTarget; |
| mtlDesc.pixelFormat = mtlFormat; |
| mtlDesc.width = width; |
| mtlDesc.height = height; |
| mtlDesc.depth = 1; |
| mtlDesc.mipmapLevelCount = 1; |
| mtlDesc.arrayLength = 1; |
| mtlDesc.storageMode = MTLStorageModePrivate; |
| mtlDesc.sampleCount = 1; |
| id<MTLTexture> resolveTexture = |
| [device->GetMTLDevice() newTextureWithDescriptor:mtlDesc]; |
| [mtlDesc release]; |
| return resolveTexture; |
| } |
| |
| void CopyIntoTrueResolveTarget(id<MTLCommandBuffer> commandBuffer, |
| id<MTLTexture> mtlTrueResolveTexture, |
| uint32_t trueResolveLevel, |
| uint32_t trueResolveSlice, |
| id<MTLTexture> temporaryResolveTexture, |
| uint32_t width, |
| uint32_t height, |
| GlobalEncoders* encoders) { |
| encoders->EnsureBlit(commandBuffer); |
| [encoders->blit copyFromTexture:temporaryResolveTexture |
| sourceSlice:0 |
| sourceLevel:0 |
| sourceOrigin:MTLOriginMake(0, 0, 0) |
| sourceSize:MTLSizeMake(width, height, 1) |
| toTexture:mtlTrueResolveTexture |
| destinationSlice:trueResolveSlice |
| destinationLevel:trueResolveLevel |
| destinationOrigin:MTLOriginMake(0, 0, 0)]; |
| } |
| |
| // Metal uses a physical addressing mode which means buffers in the shading language are |
| // just pointers to the virtual address of their start. This means there is no way to know |
| // the length of a buffer to compute the length() of unsized arrays at the end of storage |
| // buffers. SPIRV-Cross implements the length() of unsized arrays by requiring an extra |
| // buffer that contains the length of other buffers. This structure that keeps track of the |
| // length of storage buffers and can apply them to the reserved "buffer length buffer" when |
| // needed for a draw or a dispatch. |
| struct StorageBufferLengthTracker { |
| wgpu::ShaderStage dirtyStages = wgpu::ShaderStage::None; |
| |
| // The lengths of buffers are stored as 32bit integers because that is the width the |
| // MSL code generated by SPIRV-Cross expects. |
| PerStage<std::array<uint32_t, kGenericMetalBufferSlots>> data; |
| |
| void Apply(id<MTLRenderCommandEncoder> render, RenderPipeline* pipeline) { |
| wgpu::ShaderStage stagesToApply = |
| dirtyStages & pipeline->GetStagesRequiringStorageBufferLength(); |
| |
| if (stagesToApply == wgpu::ShaderStage::None) { |
| return; |
| } |
| |
| if (stagesToApply & wgpu::ShaderStage::Vertex) { |
| uint32_t bufferCount = ToBackend(pipeline->GetLayout()) |
| ->GetBufferBindingCount(SingleShaderStage::Vertex); |
| [render setVertexBytes:data[SingleShaderStage::Vertex].data() |
| length:sizeof(uint32_t) * bufferCount |
| atIndex:kBufferLengthBufferSlot]; |
| } |
| |
| if (stagesToApply & wgpu::ShaderStage::Fragment) { |
| uint32_t bufferCount = ToBackend(pipeline->GetLayout()) |
| ->GetBufferBindingCount(SingleShaderStage::Fragment); |
| [render setFragmentBytes:data[SingleShaderStage::Fragment].data() |
| length:sizeof(uint32_t) * bufferCount |
| atIndex:kBufferLengthBufferSlot]; |
| } |
| |
| // Only mark clean stages that were actually applied. |
| dirtyStages ^= stagesToApply; |
| } |
| |
| void Apply(id<MTLComputeCommandEncoder> compute, ComputePipeline* pipeline) { |
| if (!(dirtyStages & wgpu::ShaderStage::Compute)) { |
| return; |
| } |
| |
| if (!pipeline->RequiresStorageBufferLength()) { |
| return; |
| } |
| |
| uint32_t bufferCount = ToBackend(pipeline->GetLayout()) |
| ->GetBufferBindingCount(SingleShaderStage::Compute); |
| [compute setBytes:data[SingleShaderStage::Compute].data() |
| length:sizeof(uint32_t) * bufferCount |
| atIndex:kBufferLengthBufferSlot]; |
| |
| dirtyStages ^= wgpu::ShaderStage::Compute; |
| } |
| }; |
| |
| struct TextureBufferCopySplit { |
| static constexpr uint32_t kMaxTextureBufferCopyRegions = 3; |
| |
| struct CopyInfo { |
| NSUInteger bufferOffset; |
| NSUInteger bytesPerRow; |
| NSUInteger bytesPerImage; |
| MTLOrigin textureOrigin; |
| MTLSize copyExtent; |
| }; |
| |
| uint32_t count = 0; |
| std::array<CopyInfo, kMaxTextureBufferCopyRegions> copies; |
| }; |
| |
| MTLOrigin MakeMTLOrigin(Origin3D origin) { |
| return MTLOriginMake(origin.x, origin.y, origin.z); |
| } |
| |
| MTLSize MakeMTLSize(Extent3D extent) { |
| return MTLSizeMake(extent.width, extent.height, extent.depth); |
| } |
| |
| TextureBufferCopySplit ComputeTextureBufferCopySplit(Origin3D origin, |
| Extent3D copyExtent, |
| Format textureFormat, |
| Extent3D virtualSizeAtLevel, |
| uint64_t bufferSize, |
| uint64_t bufferOffset, |
| uint32_t rowPitch, |
| uint32_t imageHeight) { |
| TextureBufferCopySplit copy; |
| |
| // When copying textures from/to an unpacked buffer, the Metal validation layer doesn't |
| // compute the correct range when checking if the buffer is big enough to contain the |
| // data for the whole copy. Instead of looking at the position of the last texel in the |
| // buffer, it computes the volume of the 3D box with rowPitch * (imageHeight / |
| // format.blockHeight) * copySize.depth. For example considering the pixel buffer below |
| // where in memory, each row data (D) of the texture is followed by some padding data |
| // (P): |
| // |DDDDDDD|PP| |
| // |DDDDDDD|PP| |
| // |DDDDDDD|PP| |
| // |DDDDDDD|PP| |
| // |DDDDDDA|PP| |
| // The last pixel read will be A, but the driver will think it is the whole last padding |
| // row, causing it to generate an error when the pixel buffer is just big enough. |
| |
| // We work around this limitation by detecting when Metal would complain and copy the |
| // last image and row separately using tight sourceBytesPerRow or sourceBytesPerImage. |
| uint32_t rowPitchCountPerImage = imageHeight / textureFormat.blockHeight; |
| uint32_t bytesPerImage = rowPitch * rowPitchCountPerImage; |
| |
| // Metal validation layer requires that if the texture's pixel format is a compressed |
| // format, the sourceSize must be a multiple of the pixel format's block size or be |
| // clamped to the edge of the texture if the block extends outside the bounds of a |
| // texture. |
| uint32_t clampedCopyExtentWidth = |
| (origin.x + copyExtent.width > virtualSizeAtLevel.width) |
| ? (virtualSizeAtLevel.width - origin.x) |
| : copyExtent.width; |
| uint32_t clampedCopyExtentHeight = |
| (origin.y + copyExtent.height > virtualSizeAtLevel.height) |
| ? (virtualSizeAtLevel.height - origin.y) |
| : copyExtent.height; |
| |
| // Check whether buffer size is big enough. |
| bool needWorkaround = bufferSize - bufferOffset < bytesPerImage * copyExtent.depth; |
| if (!needWorkaround) { |
| copy.count = 1; |
| copy.copies[0].bufferOffset = bufferOffset; |
| copy.copies[0].bytesPerRow = rowPitch; |
| copy.copies[0].bytesPerImage = bytesPerImage; |
| copy.copies[0].textureOrigin = MakeMTLOrigin(origin); |
| copy.copies[0].copyExtent = |
| MTLSizeMake(clampedCopyExtentWidth, clampedCopyExtentHeight, copyExtent.depth); |
| return copy; |
| } |
| |
| uint64_t currentOffset = bufferOffset; |
| |
| // Doing all the copy except the last image. |
| if (copyExtent.depth > 1) { |
| copy.copies[copy.count].bufferOffset = currentOffset; |
| copy.copies[copy.count].bytesPerRow = rowPitch; |
| copy.copies[copy.count].bytesPerImage = bytesPerImage; |
| copy.copies[copy.count].textureOrigin = MakeMTLOrigin(origin); |
| copy.copies[copy.count].copyExtent = MTLSizeMake( |
| clampedCopyExtentWidth, clampedCopyExtentHeight, copyExtent.depth - 1); |
| |
| ++copy.count; |
| |
| // Update offset to copy to the last image. |
| currentOffset += (copyExtent.depth - 1) * bytesPerImage; |
| } |
| |
| // Doing all the copy in last image except the last row. |
| uint32_t copyBlockRowCount = copyExtent.height / textureFormat.blockHeight; |
| if (copyBlockRowCount > 1) { |
| copy.copies[copy.count].bufferOffset = currentOffset; |
| copy.copies[copy.count].bytesPerRow = rowPitch; |
| copy.copies[copy.count].bytesPerImage = rowPitch * (copyBlockRowCount - 1); |
| copy.copies[copy.count].textureOrigin = |
| MTLOriginMake(origin.x, origin.y, origin.z + copyExtent.depth - 1); |
| |
| ASSERT(copyExtent.height - textureFormat.blockHeight < virtualSizeAtLevel.height); |
| copy.copies[copy.count].copyExtent = MTLSizeMake( |
| clampedCopyExtentWidth, copyExtent.height - textureFormat.blockHeight, 1); |
| |
| ++copy.count; |
| |
| // Update offset to copy to the last row. |
| currentOffset += (copyBlockRowCount - 1) * rowPitch; |
| } |
| |
| // Doing the last row copy with the exact number of bytes in last row. |
| // Workaround this issue in a way just like the copy to a 1D texture. |
| uint32_t lastRowDataSize = |
| (copyExtent.width / textureFormat.blockWidth) * textureFormat.blockByteSize; |
| uint32_t lastRowCopyExtentHeight = |
| textureFormat.blockHeight + clampedCopyExtentHeight - copyExtent.height; |
| ASSERT(lastRowCopyExtentHeight <= textureFormat.blockHeight); |
| |
| copy.copies[copy.count].bufferOffset = currentOffset; |
| copy.copies[copy.count].bytesPerRow = lastRowDataSize; |
| copy.copies[copy.count].bytesPerImage = lastRowDataSize; |
| copy.copies[copy.count].textureOrigin = |
| MTLOriginMake(origin.x, origin.y + copyExtent.height - textureFormat.blockHeight, |
| origin.z + copyExtent.depth - 1); |
| copy.copies[copy.count].copyExtent = |
| MTLSizeMake(clampedCopyExtentWidth, lastRowCopyExtentHeight, 1); |
| ++copy.count; |
| |
| return copy; |
| } |
| |
| // Keeps track of the dirty bind groups so they can be lazily applied when we know the |
| // pipeline state. |
| // Bind groups may be inherited because bind groups are packed in the buffer / |
| // texture tables in contiguous order. |
| class BindGroupTracker : public BindGroupTrackerBase<true, uint64_t> { |
| public: |
| explicit BindGroupTracker(StorageBufferLengthTracker* lengthTracker) |
| : BindGroupTrackerBase(), mLengthTracker(lengthTracker) { |
| } |
| |
| template <typename Encoder> |
| void Apply(Encoder encoder) { |
| for (uint32_t index : IterateBitSet(mDirtyBindGroupsObjectChangedOrIsDynamic)) { |
| ApplyBindGroup(encoder, index, ToBackend(mBindGroups[index]), |
| mDynamicOffsetCounts[index], mDynamicOffsets[index].data(), |
| ToBackend(mPipelineLayout)); |
| } |
| DidApply(); |
| } |
| |
| private: |
| // Handles a call to SetBindGroup, directing the commands to the correct encoder. |
| // There is a single function that takes both encoders to factor code. Other approaches |
| // like templates wouldn't work because the name of methods are different between the |
| // two encoder types. |
| void ApplyBindGroupImpl(id<MTLRenderCommandEncoder> render, |
| id<MTLComputeCommandEncoder> compute, |
| uint32_t index, |
| BindGroup* group, |
| uint32_t dynamicOffsetCount, |
| uint64_t* dynamicOffsets, |
| PipelineLayout* pipelineLayout) { |
| const auto& layout = group->GetLayout()->GetBindingInfo(); |
| uint32_t currentDynamicBufferIndex = 0; |
| |
| // TODO(kainino@chromium.org): Maintain buffers and offsets arrays in BindGroup |
| // so that we only have to do one setVertexBuffers and one setFragmentBuffers |
| // call here. |
| for (uint32_t bindingIndex : IterateBitSet(layout.mask)) { |
| auto stage = layout.visibilities[bindingIndex]; |
| bool hasVertStage = stage & wgpu::ShaderStage::Vertex && render != nil; |
| bool hasFragStage = stage & wgpu::ShaderStage::Fragment && render != nil; |
| bool hasComputeStage = stage & wgpu::ShaderStage::Compute && compute != nil; |
| |
| uint32_t vertIndex = 0; |
| uint32_t fragIndex = 0; |
| uint32_t computeIndex = 0; |
| |
| if (hasVertStage) { |
| vertIndex = pipelineLayout->GetBindingIndexInfo( |
| SingleShaderStage::Vertex)[index][bindingIndex]; |
| } |
| if (hasFragStage) { |
| fragIndex = pipelineLayout->GetBindingIndexInfo( |
| SingleShaderStage::Fragment)[index][bindingIndex]; |
| } |
| if (hasComputeStage) { |
| computeIndex = pipelineLayout->GetBindingIndexInfo( |
| SingleShaderStage::Compute)[index][bindingIndex]; |
| } |
| |
| switch (layout.types[bindingIndex]) { |
| case wgpu::BindingType::UniformBuffer: |
| case wgpu::BindingType::StorageBuffer: { |
| const BufferBinding& binding = |
| group->GetBindingAsBufferBinding(bindingIndex); |
| const id<MTLBuffer> buffer = ToBackend(binding.buffer)->GetMTLBuffer(); |
| NSUInteger offset = binding.offset; |
| |
| // TODO(shaobo.yan@intel.com): Record bound buffer status to use |
| // setBufferOffset to achieve better performance. |
| if (layout.hasDynamicOffset[bindingIndex]) { |
| offset += dynamicOffsets[currentDynamicBufferIndex]; |
| currentDynamicBufferIndex++; |
| } |
| |
| if (hasVertStage) { |
| mLengthTracker->data[SingleShaderStage::Vertex][vertIndex] = |
| binding.size; |
| mLengthTracker->dirtyStages |= wgpu::ShaderStage::Vertex; |
| [render setVertexBuffers:&buffer |
| offsets:&offset |
| withRange:NSMakeRange(vertIndex, 1)]; |
| } |
| if (hasFragStage) { |
| mLengthTracker->data[SingleShaderStage::Fragment][fragIndex] = |
| binding.size; |
| mLengthTracker->dirtyStages |= wgpu::ShaderStage::Fragment; |
| [render setFragmentBuffers:&buffer |
| offsets:&offset |
| withRange:NSMakeRange(fragIndex, 1)]; |
| } |
| if (hasComputeStage) { |
| mLengthTracker->data[SingleShaderStage::Compute][computeIndex] = |
| binding.size; |
| mLengthTracker->dirtyStages |= wgpu::ShaderStage::Compute; |
| [compute setBuffers:&buffer |
| offsets:&offset |
| withRange:NSMakeRange(computeIndex, 1)]; |
| } |
| |
| } break; |
| |
| case wgpu::BindingType::Sampler: { |
| auto sampler = ToBackend(group->GetBindingAsSampler(bindingIndex)); |
| if (hasVertStage) { |
| [render setVertexSamplerState:sampler->GetMTLSamplerState() |
| atIndex:vertIndex]; |
| } |
| if (hasFragStage) { |
| [render setFragmentSamplerState:sampler->GetMTLSamplerState() |
| atIndex:fragIndex]; |
| } |
| if (hasComputeStage) { |
| [compute setSamplerState:sampler->GetMTLSamplerState() |
| atIndex:computeIndex]; |
| } |
| } break; |
| |
| case wgpu::BindingType::SampledTexture: { |
| auto textureView = |
| ToBackend(group->GetBindingAsTextureView(bindingIndex)); |
| if (hasVertStage) { |
| [render setVertexTexture:textureView->GetMTLTexture() |
| atIndex:vertIndex]; |
| } |
| if (hasFragStage) { |
| [render setFragmentTexture:textureView->GetMTLTexture() |
| atIndex:fragIndex]; |
| } |
| if (hasComputeStage) { |
| [compute setTexture:textureView->GetMTLTexture() |
| atIndex:computeIndex]; |
| } |
| } break; |
| |
| case wgpu::BindingType::StorageTexture: |
| case wgpu::BindingType::ReadonlyStorageBuffer: |
| UNREACHABLE(); |
| break; |
| } |
| } |
| } |
| |
| template <typename... Args> |
| void ApplyBindGroup(id<MTLRenderCommandEncoder> encoder, Args&&... args) { |
| ApplyBindGroupImpl(encoder, nil, std::forward<Args&&>(args)...); |
| } |
| |
| template <typename... Args> |
| void ApplyBindGroup(id<MTLComputeCommandEncoder> encoder, Args&&... args) { |
| ApplyBindGroupImpl(nil, encoder, std::forward<Args&&>(args)...); |
| } |
| |
| StorageBufferLengthTracker* mLengthTracker; |
| }; |
| |
| // Keeps track of the dirty vertex buffer values so they can be lazily applied when we know |
| // all the relevant state. |
| class VertexInputBufferTracker { |
| public: |
| void OnSetVertexBuffer(uint32_t slot, Buffer* buffer, uint64_t offset) { |
| mVertexBuffers[slot] = buffer->GetMTLBuffer(); |
| mVertexBufferOffsets[slot] = offset; |
| |
| // Use 64 bit masks and make sure there are no shift UB |
| static_assert(kMaxVertexBuffers <= 8 * sizeof(unsigned long long) - 1, ""); |
| mDirtyVertexBuffers |= 1ull << slot; |
| } |
| |
| void OnSetPipeline(RenderPipeline* lastPipeline, RenderPipeline* pipeline) { |
| // When a new pipeline is bound we must set all the vertex buffers again because |
| // they might have been offset by the pipeline layout, and they might be packed |
| // differently from the previous pipeline. |
| mDirtyVertexBuffers |= pipeline->GetInputsSetMask(); |
| } |
| |
| void Apply(id<MTLRenderCommandEncoder> encoder, RenderPipeline* pipeline) { |
| std::bitset<kMaxVertexBuffers> vertexBuffersToApply = |
| mDirtyVertexBuffers & pipeline->GetInputsSetMask(); |
| |
| for (uint32_t dawnIndex : IterateBitSet(vertexBuffersToApply)) { |
| uint32_t metalIndex = pipeline->GetMtlVertexBufferIndex(dawnIndex); |
| |
| [encoder setVertexBuffers:&mVertexBuffers[dawnIndex] |
| offsets:&mVertexBufferOffsets[dawnIndex] |
| withRange:NSMakeRange(metalIndex, 1)]; |
| } |
| |
| mDirtyVertexBuffers.reset(); |
| } |
| |
| private: |
| // All the indices in these arrays are Dawn vertex buffer indices |
| std::bitset<kMaxVertexBuffers> mDirtyVertexBuffers; |
| std::array<id<MTLBuffer>, kMaxVertexBuffers> mVertexBuffers; |
| std::array<NSUInteger, kMaxVertexBuffers> mVertexBufferOffsets; |
| }; |
| |
| } // anonymous namespace |
| |
| CommandBuffer::CommandBuffer(CommandEncoderBase* encoder, |
| const CommandBufferDescriptor* descriptor) |
| : CommandBufferBase(encoder, descriptor), mCommands(encoder->AcquireCommands()) { |
| } |
| |
| CommandBuffer::~CommandBuffer() { |
| FreeCommands(&mCommands); |
| } |
| |
| void CommandBuffer::FillCommands(id<MTLCommandBuffer> commandBuffer) { |
| GlobalEncoders encoders; |
| |
| Command type; |
| while (mCommands.NextCommandId(&type)) { |
| switch (type) { |
| case Command::BeginComputePass: { |
| mCommands.NextCommand<BeginComputePassCmd>(); |
| encoders.Finish(); |
| EncodeComputePass(commandBuffer); |
| } break; |
| |
| case Command::BeginRenderPass: { |
| BeginRenderPassCmd* cmd = mCommands.NextCommand<BeginRenderPassCmd>(); |
| encoders.Finish(); |
| MTLRenderPassDescriptor* descriptor = CreateMTLRenderPassDescriptor(cmd); |
| EncodeRenderPass(commandBuffer, descriptor, &encoders, cmd->width, cmd->height); |
| } break; |
| |
| case Command::CopyBufferToBuffer: { |
| CopyBufferToBufferCmd* copy = mCommands.NextCommand<CopyBufferToBufferCmd>(); |
| |
| encoders.EnsureBlit(commandBuffer); |
| [encoders.blit copyFromBuffer:ToBackend(copy->source)->GetMTLBuffer() |
| sourceOffset:copy->sourceOffset |
| toBuffer:ToBackend(copy->destination)->GetMTLBuffer() |
| destinationOffset:copy->destinationOffset |
| size:copy->size]; |
| } break; |
| |
| case Command::CopyBufferToTexture: { |
| CopyBufferToTextureCmd* copy = mCommands.NextCommand<CopyBufferToTextureCmd>(); |
| auto& src = copy->source; |
| auto& dst = copy->destination; |
| auto& copySize = copy->copySize; |
| Buffer* buffer = ToBackend(src.buffer.Get()); |
| Texture* texture = ToBackend(dst.texture.Get()); |
| |
| Extent3D virtualSizeAtLevel = texture->GetMipLevelVirtualSize(dst.mipLevel); |
| TextureBufferCopySplit splittedCopies = ComputeTextureBufferCopySplit( |
| dst.origin, copySize, texture->GetFormat(), virtualSizeAtLevel, |
| buffer->GetSize(), src.offset, src.rowPitch, src.imageHeight); |
| |
| encoders.EnsureBlit(commandBuffer); |
| for (uint32_t i = 0; i < splittedCopies.count; ++i) { |
| const TextureBufferCopySplit::CopyInfo& copyInfo = splittedCopies.copies[i]; |
| [encoders.blit copyFromBuffer:buffer->GetMTLBuffer() |
| sourceOffset:copyInfo.bufferOffset |
| sourceBytesPerRow:copyInfo.bytesPerRow |
| sourceBytesPerImage:copyInfo.bytesPerImage |
| sourceSize:copyInfo.copyExtent |
| toTexture:texture->GetMTLTexture() |
| destinationSlice:dst.arrayLayer |
| destinationLevel:dst.mipLevel |
| destinationOrigin:copyInfo.textureOrigin]; |
| } |
| } break; |
| |
| case Command::CopyTextureToBuffer: { |
| CopyTextureToBufferCmd* copy = mCommands.NextCommand<CopyTextureToBufferCmd>(); |
| auto& src = copy->source; |
| auto& dst = copy->destination; |
| auto& copySize = copy->copySize; |
| Texture* texture = ToBackend(src.texture.Get()); |
| Buffer* buffer = ToBackend(dst.buffer.Get()); |
| |
| Extent3D virtualSizeAtLevel = texture->GetMipLevelVirtualSize(src.mipLevel); |
| TextureBufferCopySplit splittedCopies = ComputeTextureBufferCopySplit( |
| src.origin, copySize, texture->GetFormat(), virtualSizeAtLevel, |
| buffer->GetSize(), dst.offset, dst.rowPitch, dst.imageHeight); |
| |
| encoders.EnsureBlit(commandBuffer); |
| for (uint32_t i = 0; i < splittedCopies.count; ++i) { |
| const TextureBufferCopySplit::CopyInfo& copyInfo = splittedCopies.copies[i]; |
| [encoders.blit copyFromTexture:texture->GetMTLTexture() |
| sourceSlice:src.arrayLayer |
| sourceLevel:src.mipLevel |
| sourceOrigin:copyInfo.textureOrigin |
| sourceSize:copyInfo.copyExtent |
| toBuffer:buffer->GetMTLBuffer() |
| destinationOffset:copyInfo.bufferOffset |
| destinationBytesPerRow:copyInfo.bytesPerRow |
| destinationBytesPerImage:copyInfo.bytesPerImage]; |
| } |
| } break; |
| |
| case Command::CopyTextureToTexture: { |
| CopyTextureToTextureCmd* copy = |
| mCommands.NextCommand<CopyTextureToTextureCmd>(); |
| Texture* srcTexture = ToBackend(copy->source.texture.Get()); |
| Texture* dstTexture = ToBackend(copy->destination.texture.Get()); |
| |
| encoders.EnsureBlit(commandBuffer); |
| |
| [encoders.blit copyFromTexture:srcTexture->GetMTLTexture() |
| sourceSlice:copy->source.arrayLayer |
| sourceLevel:copy->source.mipLevel |
| sourceOrigin:MakeMTLOrigin(copy->source.origin) |
| sourceSize:MakeMTLSize(copy->copySize) |
| toTexture:dstTexture->GetMTLTexture() |
| destinationSlice:copy->destination.arrayLayer |
| destinationLevel:copy->destination.mipLevel |
| destinationOrigin:MakeMTLOrigin(copy->destination.origin)]; |
| } break; |
| |
| default: { UNREACHABLE(); } break; |
| } |
| } |
| |
| encoders.Finish(); |
| } |
| |
| void CommandBuffer::EncodeComputePass(id<MTLCommandBuffer> commandBuffer) { |
| ComputePipeline* lastPipeline = nullptr; |
| StorageBufferLengthTracker storageBufferLengths = {}; |
| BindGroupTracker bindGroups(&storageBufferLengths); |
| |
| // Will be autoreleased |
| id<MTLComputeCommandEncoder> encoder = [commandBuffer computeCommandEncoder]; |
| |
| Command type; |
| while (mCommands.NextCommandId(&type)) { |
| switch (type) { |
| case Command::EndComputePass: { |
| mCommands.NextCommand<EndComputePassCmd>(); |
| [encoder endEncoding]; |
| return; |
| } break; |
| |
| case Command::Dispatch: { |
| DispatchCmd* dispatch = mCommands.NextCommand<DispatchCmd>(); |
| |
| bindGroups.Apply(encoder); |
| storageBufferLengths.Apply(encoder, lastPipeline); |
| |
| [encoder dispatchThreadgroups:MTLSizeMake(dispatch->x, dispatch->y, dispatch->z) |
| threadsPerThreadgroup:lastPipeline->GetLocalWorkGroupSize()]; |
| } break; |
| |
| case Command::DispatchIndirect: { |
| DispatchIndirectCmd* dispatch = mCommands.NextCommand<DispatchIndirectCmd>(); |
| |
| bindGroups.Apply(encoder); |
| storageBufferLengths.Apply(encoder, lastPipeline); |
| |
| Buffer* buffer = ToBackend(dispatch->indirectBuffer.Get()); |
| id<MTLBuffer> indirectBuffer = buffer->GetMTLBuffer(); |
| [encoder dispatchThreadgroupsWithIndirectBuffer:indirectBuffer |
| indirectBufferOffset:dispatch->indirectOffset |
| threadsPerThreadgroup:lastPipeline |
| ->GetLocalWorkGroupSize()]; |
| } break; |
| |
| case Command::SetComputePipeline: { |
| SetComputePipelineCmd* cmd = mCommands.NextCommand<SetComputePipelineCmd>(); |
| lastPipeline = ToBackend(cmd->pipeline).Get(); |
| |
| bindGroups.OnSetPipeline(lastPipeline); |
| |
| lastPipeline->Encode(encoder); |
| } break; |
| |
| case Command::SetBindGroup: { |
| SetBindGroupCmd* cmd = mCommands.NextCommand<SetBindGroupCmd>(); |
| uint32_t* dynamicOffsets = nullptr; |
| if (cmd->dynamicOffsetCount > 0) { |
| dynamicOffsets = mCommands.NextData<uint32_t>(cmd->dynamicOffsetCount); |
| } |
| |
| bindGroups.OnSetBindGroup(cmd->index, ToBackend(cmd->group.Get()), |
| cmd->dynamicOffsetCount, dynamicOffsets); |
| } break; |
| |
| case Command::InsertDebugMarker: { |
| InsertDebugMarkerCmd* cmd = mCommands.NextCommand<InsertDebugMarkerCmd>(); |
| char* label = mCommands.NextData<char>(cmd->length + 1); |
| NSString* mtlLabel = [[NSString alloc] initWithUTF8String:label]; |
| |
| [encoder insertDebugSignpost:mtlLabel]; |
| [mtlLabel release]; |
| } break; |
| |
| case Command::PopDebugGroup: { |
| mCommands.NextCommand<PopDebugGroupCmd>(); |
| |
| [encoder popDebugGroup]; |
| } break; |
| |
| case Command::PushDebugGroup: { |
| PushDebugGroupCmd* cmd = mCommands.NextCommand<PushDebugGroupCmd>(); |
| char* label = mCommands.NextData<char>(cmd->length + 1); |
| NSString* mtlLabel = [[NSString alloc] initWithUTF8String:label]; |
| |
| [encoder pushDebugGroup:mtlLabel]; |
| [mtlLabel release]; |
| } break; |
| |
| default: { UNREACHABLE(); } break; |
| } |
| } |
| |
| // EndComputePass should have been called |
| UNREACHABLE(); |
| } |
| |
| void CommandBuffer::EncodeRenderPass(id<MTLCommandBuffer> commandBuffer, |
| MTLRenderPassDescriptor* mtlRenderPass, |
| GlobalEncoders* globalEncoders, |
| uint32_t width, |
| uint32_t height) { |
| ASSERT(mtlRenderPass && globalEncoders); |
| |
| Device* device = ToBackend(GetDevice()); |
| |
| // Handle Toggle AlwaysResolveIntoZeroLevelAndLayer. We must handle this before applying |
| // the store + MSAA resolve workaround, otherwise this toggle will never be handled because |
| // the resolve texture is removed when applying the store + MSAA resolve workaround. |
| if (device->IsToggleEnabled(Toggle::AlwaysResolveIntoZeroLevelAndLayer)) { |
| std::array<id<MTLTexture>, kMaxColorAttachments> trueResolveTextures = {}; |
| std::array<uint32_t, kMaxColorAttachments> trueResolveLevels = {}; |
| std::array<uint32_t, kMaxColorAttachments> trueResolveSlices = {}; |
| |
| // Use temporary resolve texture on the resolve targets with non-zero resolveLevel or |
| // resolveSlice. |
| bool useTemporaryResolveTexture = false; |
| std::array<id<MTLTexture>, kMaxColorAttachments> temporaryResolveTextures = {}; |
| for (uint32_t i = 0; i < kMaxColorAttachments; ++i) { |
| if (mtlRenderPass.colorAttachments[i].resolveTexture == nil) { |
| continue; |
| } |
| |
| if (mtlRenderPass.colorAttachments[i].resolveLevel == 0 && |
| mtlRenderPass.colorAttachments[i].resolveSlice == 0) { |
| continue; |
| } |
| |
| trueResolveTextures[i] = mtlRenderPass.colorAttachments[i].resolveTexture; |
| trueResolveLevels[i] = mtlRenderPass.colorAttachments[i].resolveLevel; |
| trueResolveSlices[i] = mtlRenderPass.colorAttachments[i].resolveSlice; |
| |
| const MTLPixelFormat mtlFormat = trueResolveTextures[i].pixelFormat; |
| temporaryResolveTextures[i] = |
| CreateResolveTextureForWorkaround(device, mtlFormat, width, height); |
| |
| mtlRenderPass.colorAttachments[i].resolveTexture = temporaryResolveTextures[i]; |
| mtlRenderPass.colorAttachments[i].resolveLevel = 0; |
| mtlRenderPass.colorAttachments[i].resolveSlice = 0; |
| useTemporaryResolveTexture = true; |
| } |
| |
| // If we need to use a temporary resolve texture we need to copy the result of MSAA |
| // resolve back to the true resolve targets. |
| if (useTemporaryResolveTexture) { |
| EncodeRenderPass(commandBuffer, mtlRenderPass, globalEncoders, width, height); |
| for (uint32_t i = 0; i < kMaxColorAttachments; ++i) { |
| if (trueResolveTextures[i] == nil) { |
| continue; |
| } |
| |
| ASSERT(temporaryResolveTextures[i] != nil); |
| CopyIntoTrueResolveTarget(commandBuffer, trueResolveTextures[i], |
| trueResolveLevels[i], trueResolveSlices[i], |
| temporaryResolveTextures[i], width, height, |
| globalEncoders); |
| } |
| return; |
| } |
| } |
| |
| // Handle Store + MSAA resolve workaround (Toggle EmulateStoreAndMSAAResolve). |
| if (device->IsToggleEnabled(Toggle::EmulateStoreAndMSAAResolve)) { |
| bool hasStoreAndMSAAResolve = false; |
| |
| // Remove any store + MSAA resolve and remember them. |
| std::array<id<MTLTexture>, kMaxColorAttachments> resolveTextures = {}; |
| for (uint32_t i = 0; i < kMaxColorAttachments; ++i) { |
| if (mtlRenderPass.colorAttachments[i].storeAction == |
| MTLStoreActionStoreAndMultisampleResolve) { |
| hasStoreAndMSAAResolve = true; |
| resolveTextures[i] = mtlRenderPass.colorAttachments[i].resolveTexture; |
| |
| mtlRenderPass.colorAttachments[i].storeAction = MTLStoreActionStore; |
| mtlRenderPass.colorAttachments[i].resolveTexture = nil; |
| } |
| } |
| |
| // If we found a store + MSAA resolve we need to resolve in a different render pass. |
| if (hasStoreAndMSAAResolve) { |
| EncodeRenderPass(commandBuffer, mtlRenderPass, globalEncoders, width, height); |
| ResolveInAnotherRenderPass(commandBuffer, mtlRenderPass, resolveTextures); |
| return; |
| } |
| } |
| |
| EncodeRenderPassInternal(commandBuffer, mtlRenderPass, width, height); |
| } |
| |
| void CommandBuffer::EncodeRenderPassInternal(id<MTLCommandBuffer> commandBuffer, |
| MTLRenderPassDescriptor* mtlRenderPass, |
| uint32_t width, |
| uint32_t height) { |
| RenderPipeline* lastPipeline = nullptr; |
| id<MTLBuffer> indexBuffer = nil; |
| uint32_t indexBufferBaseOffset = 0; |
| VertexInputBufferTracker vertexInputBuffers; |
| StorageBufferLengthTracker storageBufferLengths = {}; |
| BindGroupTracker bindGroups(&storageBufferLengths); |
| |
| // This will be autoreleased |
| id<MTLRenderCommandEncoder> encoder = |
| [commandBuffer renderCommandEncoderWithDescriptor:mtlRenderPass]; |
| |
| auto EncodeRenderBundleCommand = [&](CommandIterator* iter, Command type) { |
| switch (type) { |
| case Command::Draw: { |
| DrawCmd* draw = iter->NextCommand<DrawCmd>(); |
| |
| vertexInputBuffers.Apply(encoder, lastPipeline); |
| bindGroups.Apply(encoder); |
| storageBufferLengths.Apply(encoder, lastPipeline); |
| |
| // The instance count must be non-zero, otherwise no-op |
| if (draw->instanceCount != 0) { |
| [encoder drawPrimitives:lastPipeline->GetMTLPrimitiveTopology() |
| vertexStart:draw->firstVertex |
| vertexCount:draw->vertexCount |
| instanceCount:draw->instanceCount |
| baseInstance:draw->firstInstance]; |
| } |
| } break; |
| |
| case Command::DrawIndexed: { |
| DrawIndexedCmd* draw = iter->NextCommand<DrawIndexedCmd>(); |
| size_t formatSize = |
| IndexFormatSize(lastPipeline->GetVertexInputDescriptor()->indexFormat); |
| |
| vertexInputBuffers.Apply(encoder, lastPipeline); |
| bindGroups.Apply(encoder); |
| storageBufferLengths.Apply(encoder, lastPipeline); |
| |
| // The index and instance count must be non-zero, otherwise no-op |
| if (draw->indexCount != 0 && draw->instanceCount != 0) { |
| [encoder drawIndexedPrimitives:lastPipeline->GetMTLPrimitiveTopology() |
| indexCount:draw->indexCount |
| indexType:lastPipeline->GetMTLIndexType() |
| indexBuffer:indexBuffer |
| indexBufferOffset:indexBufferBaseOffset + |
| draw->firstIndex * formatSize |
| instanceCount:draw->instanceCount |
| baseVertex:draw->baseVertex |
| baseInstance:draw->firstInstance]; |
| } |
| } break; |
| |
| case Command::DrawIndirect: { |
| DrawIndirectCmd* draw = iter->NextCommand<DrawIndirectCmd>(); |
| |
| vertexInputBuffers.Apply(encoder, lastPipeline); |
| bindGroups.Apply(encoder); |
| storageBufferLengths.Apply(encoder, lastPipeline); |
| |
| Buffer* buffer = ToBackend(draw->indirectBuffer.Get()); |
| id<MTLBuffer> indirectBuffer = buffer->GetMTLBuffer(); |
| [encoder drawPrimitives:lastPipeline->GetMTLPrimitiveTopology() |
| indirectBuffer:indirectBuffer |
| indirectBufferOffset:draw->indirectOffset]; |
| } break; |
| |
| case Command::DrawIndexedIndirect: { |
| DrawIndirectCmd* draw = iter->NextCommand<DrawIndirectCmd>(); |
| |
| vertexInputBuffers.Apply(encoder, lastPipeline); |
| bindGroups.Apply(encoder); |
| storageBufferLengths.Apply(encoder, lastPipeline); |
| |
| Buffer* buffer = ToBackend(draw->indirectBuffer.Get()); |
| id<MTLBuffer> indirectBuffer = buffer->GetMTLBuffer(); |
| [encoder drawIndexedPrimitives:lastPipeline->GetMTLPrimitiveTopology() |
| indexType:lastPipeline->GetMTLIndexType() |
| indexBuffer:indexBuffer |
| indexBufferOffset:indexBufferBaseOffset |
| indirectBuffer:indirectBuffer |
| indirectBufferOffset:draw->indirectOffset]; |
| } break; |
| |
| case Command::InsertDebugMarker: { |
| InsertDebugMarkerCmd* cmd = iter->NextCommand<InsertDebugMarkerCmd>(); |
| char* label = iter->NextData<char>(cmd->length + 1); |
| NSString* mtlLabel = [[NSString alloc] initWithUTF8String:label]; |
| |
| [encoder insertDebugSignpost:mtlLabel]; |
| [mtlLabel release]; |
| } break; |
| |
| case Command::PopDebugGroup: { |
| iter->NextCommand<PopDebugGroupCmd>(); |
| |
| [encoder popDebugGroup]; |
| } break; |
| |
| case Command::PushDebugGroup: { |
| PushDebugGroupCmd* cmd = iter->NextCommand<PushDebugGroupCmd>(); |
| char* label = iter->NextData<char>(cmd->length + 1); |
| NSString* mtlLabel = [[NSString alloc] initWithUTF8String:label]; |
| |
| [encoder pushDebugGroup:mtlLabel]; |
| [mtlLabel release]; |
| } break; |
| |
| case Command::SetRenderPipeline: { |
| SetRenderPipelineCmd* cmd = iter->NextCommand<SetRenderPipelineCmd>(); |
| RenderPipeline* newPipeline = ToBackend(cmd->pipeline).Get(); |
| |
| vertexInputBuffers.OnSetPipeline(lastPipeline, newPipeline); |
| bindGroups.OnSetPipeline(newPipeline); |
| |
| [encoder setDepthStencilState:newPipeline->GetMTLDepthStencilState()]; |
| [encoder setFrontFacingWinding:newPipeline->GetMTLFrontFace()]; |
| [encoder setCullMode:newPipeline->GetMTLCullMode()]; |
| newPipeline->Encode(encoder); |
| |
| lastPipeline = newPipeline; |
| } break; |
| |
| case Command::SetBindGroup: { |
| SetBindGroupCmd* cmd = iter->NextCommand<SetBindGroupCmd>(); |
| uint32_t* dynamicOffsets = nullptr; |
| if (cmd->dynamicOffsetCount > 0) { |
| dynamicOffsets = iter->NextData<uint32_t>(cmd->dynamicOffsetCount); |
| } |
| |
| bindGroups.OnSetBindGroup(cmd->index, ToBackend(cmd->group.Get()), |
| cmd->dynamicOffsetCount, dynamicOffsets); |
| } break; |
| |
| case Command::SetIndexBuffer: { |
| SetIndexBufferCmd* cmd = iter->NextCommand<SetIndexBufferCmd>(); |
| auto b = ToBackend(cmd->buffer.Get()); |
| indexBuffer = b->GetMTLBuffer(); |
| indexBufferBaseOffset = cmd->offset; |
| } break; |
| |
| case Command::SetVertexBuffer: { |
| SetVertexBufferCmd* cmd = iter->NextCommand<SetVertexBufferCmd>(); |
| |
| vertexInputBuffers.OnSetVertexBuffer(cmd->slot, ToBackend(cmd->buffer.Get()), |
| cmd->offset); |
| } break; |
| |
| default: |
| UNREACHABLE(); |
| break; |
| } |
| }; |
| |
| Command type; |
| while (mCommands.NextCommandId(&type)) { |
| switch (type) { |
| case Command::EndRenderPass: { |
| mCommands.NextCommand<EndRenderPassCmd>(); |
| [encoder endEncoding]; |
| return; |
| } break; |
| |
| case Command::SetStencilReference: { |
| SetStencilReferenceCmd* cmd = mCommands.NextCommand<SetStencilReferenceCmd>(); |
| [encoder setStencilReferenceValue:cmd->reference]; |
| } break; |
| |
| case Command::SetViewport: { |
| SetViewportCmd* cmd = mCommands.NextCommand<SetViewportCmd>(); |
| MTLViewport viewport; |
| viewport.originX = cmd->x; |
| viewport.originY = cmd->y; |
| viewport.width = cmd->width; |
| viewport.height = cmd->height; |
| viewport.znear = cmd->minDepth; |
| viewport.zfar = cmd->maxDepth; |
| |
| [encoder setViewport:viewport]; |
| } break; |
| |
| case Command::SetScissorRect: { |
| SetScissorRectCmd* cmd = mCommands.NextCommand<SetScissorRectCmd>(); |
| MTLScissorRect rect; |
| rect.x = cmd->x; |
| rect.y = cmd->y; |
| rect.width = cmd->width; |
| rect.height = cmd->height; |
| |
| // The scissor rect x + width must be <= render pass width |
| if ((rect.x + rect.width) > width) { |
| rect.width = width - rect.x; |
| } |
| // The scissor rect y + height must be <= render pass height |
| if ((rect.y + rect.height > height)) { |
| rect.height = height - rect.y; |
| } |
| |
| [encoder setScissorRect:rect]; |
| } break; |
| |
| case Command::SetBlendColor: { |
| SetBlendColorCmd* cmd = mCommands.NextCommand<SetBlendColorCmd>(); |
| [encoder setBlendColorRed:cmd->color.r |
| green:cmd->color.g |
| blue:cmd->color.b |
| alpha:cmd->color.a]; |
| } break; |
| |
| case Command::ExecuteBundles: { |
| ExecuteBundlesCmd* cmd = mCommands.NextCommand<ExecuteBundlesCmd>(); |
| auto bundles = mCommands.NextData<Ref<RenderBundleBase>>(cmd->count); |
| |
| for (uint32_t i = 0; i < cmd->count; ++i) { |
| CommandIterator* iter = bundles[i]->GetCommands(); |
| iter->Reset(); |
| while (iter->NextCommandId(&type)) { |
| EncodeRenderBundleCommand(iter, type); |
| } |
| } |
| } break; |
| |
| default: { EncodeRenderBundleCommand(&mCommands, type); } break; |
| } |
| } |
| |
| // EndRenderPass should have been called |
| UNREACHABLE(); |
| } |
| |
| }} // namespace dawn_native::metal |
