| /* |
| * Copyright 2021 Google LLC |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef skgpu_graphite_MtlCaps_DEFINED |
| #define skgpu_graphite_MtlCaps_DEFINED |
| |
| #include <vector> |
| |
| #import <Metal/Metal.h> |
| |
| #include "src/gpu/graphite/Caps.h" |
| |
| namespace skgpu::graphite { |
| struct ContextOptions; |
| |
| class MtlCaps final : public Caps { |
| public: |
| MtlCaps(const id<MTLDevice>, const ContextOptions&); |
| ~MtlCaps() override {} |
| |
| TextureInfo getDefaultSampledTextureInfo(SkColorType, |
| uint32_t levelCount, |
| Protected, |
| Renderable) const override; |
| |
| TextureInfo getDefaultMSAATextureInfo(const TextureInfo& singleSampledInfo, |
| Discardable discardable) const override; |
| |
| TextureInfo getDefaultDepthStencilTextureInfo(SkEnumBitMask<DepthStencilFlags>, |
| uint32_t sampleCount, |
| Protected) const override; |
| |
| UniqueKey makeGraphicsPipelineKey(const GraphicsPipelineDesc&, |
| const RenderPassDesc&) const override; |
| UniqueKey makeComputePipelineKey(const ComputePipelineDesc&) const override; |
| |
| // Get a sufficiently unique bit representation for the RenderPassDesc to be embedded in other |
| // UniqueKeys (e.g. makeGraphicsPipelineKey). |
| uint64_t getRenderPassDescKey(const RenderPassDesc&) const; |
| |
| bool isMac() const { return fGPUFamily == GPUFamily::kMac; } |
| bool isApple()const { return fGPUFamily == GPUFamily::kApple; } |
| |
| size_t getMinBufferAlignment() const { return this->isMac() ? 4 : 1; } |
| |
| bool isRenderable(const TextureInfo&) const override; |
| |
| void buildKeyForTexture(SkISize dimensions, |
| const TextureInfo&, |
| ResourceType, |
| Shareable, |
| GraphiteResourceKey*) const override; |
| |
| private: |
| void initGPUFamily(const id<MTLDevice>); |
| |
| void initCaps(const id<MTLDevice>); |
| void initShaderCaps(); |
| void initFormatTable(); |
| |
| enum class GPUFamily { |
| kMac, |
| kApple, |
| }; |
| static bool GetGPUFamily(id<MTLDevice> device, GPUFamily* gpuFamily, int* group); |
| static bool GetGPUFamilyFromFeatureSet(id<MTLDevice> device, GPUFamily* gpuFamily, |
| int* group); |
| |
| MTLPixelFormat getFormatFromColorType(SkColorType colorType) const { |
| int idx = static_cast<int>(colorType); |
| return fColorTypeToFormatTable[idx]; |
| } |
| |
| const ColorTypeInfo* getColorTypeInfo(SkColorType, const TextureInfo&) const override; |
| |
| bool onIsTexturable(const TextureInfo&) const override; |
| bool isTexturable(MTLPixelFormat) const; |
| bool isRenderable(MTLPixelFormat, uint32_t numSamples) const; |
| uint32_t maxRenderTargetSampleCount(MTLPixelFormat) const; |
| |
| size_t getTransferBufferAlignment(size_t bytesPerPixel) const override; |
| |
| MTLStorageMode getDefaultMSAAStorageMode(Discardable discardable) const; |
| |
| struct FormatInfo { |
| uint32_t colorTypeFlags(SkColorType colorType) const { |
| for (int i = 0; i < fColorTypeInfoCount; ++i) { |
| if (fColorTypeInfos[i].fColorType == colorType) { |
| return fColorTypeInfos[i].fFlags; |
| } |
| } |
| return 0; |
| } |
| |
| enum { |
| kTexturable_Flag = 0x1, |
| kRenderable_Flag = 0x2, // Color attachment and blendable |
| kMSAA_Flag = 0x4, |
| kResolve_Flag = 0x8, |
| }; |
| static const uint16_t kAllFlags = kTexturable_Flag | kRenderable_Flag | |
| kMSAA_Flag | kResolve_Flag; |
| |
| uint16_t fFlags = 0; |
| |
| std::unique_ptr<ColorTypeInfo[]> fColorTypeInfos; |
| int fColorTypeInfoCount = 0; |
| }; |
| inline static constexpr size_t kNumMtlFormats = 10; |
| |
| static size_t GetFormatIndex(MTLPixelFormat); |
| FormatInfo fFormatTable[kNumMtlFormats]; |
| |
| const FormatInfo& getFormatInfo(const MTLPixelFormat pixelFormat) const { |
| size_t index = GetFormatIndex(pixelFormat); |
| return fFormatTable[index]; |
| } |
| |
| MTLPixelFormat fColorTypeToFormatTable[kSkColorTypeCnt]; |
| void setColorType(SkColorType, std::initializer_list<MTLPixelFormat> formats); |
| |
| // A vector of the viable sample counts (e.g., { 1, 2, 4, 8 }). |
| std::vector<uint32_t> fColorSampleCounts; |
| |
| GPUFamily fGPUFamily; |
| int fFamilyGroup; |
| }; |
| |
| } // namespace skgpu::graphite |
| |
| #endif // skgpu_graphite_MtlCaps_DEFINED |