| /* |
| * Copyright 2017 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef GrMtlCaps_DEFINED |
| #define GrMtlCaps_DEFINED |
| |
| #include "include/private/SkTDArray.h" |
| #include "src/gpu/GrCaps.h" |
| #include "src/gpu/mtl/GrMtlStencilAttachment.h" |
| |
| #import <Metal/Metal.h> |
| |
| class GrShaderCaps; |
| |
| /** |
| * Stores some capabilities of a Mtl backend. |
| */ |
| class GrMtlCaps : public GrCaps { |
| public: |
| typedef GrMtlStencilAttachment::Format StencilFormat; |
| |
| GrMtlCaps(const GrContextOptions& contextOptions, id<MTLDevice> device, |
| MTLFeatureSet featureSet); |
| |
| bool isFormatSRGB(const GrBackendFormat&) const override; |
| bool isFormatCompressed(const GrBackendFormat&) const override; |
| |
| bool isFormatTexturable(GrColorType, const GrBackendFormat&) const override; |
| bool isConfigTexturable(GrPixelConfig config) const override; |
| bool isFormatTexturable(MTLPixelFormat) const; |
| |
| bool isFormatCopyable(const GrBackendFormat&) const override { return true; } |
| |
| bool isFormatRenderable(MTLPixelFormat) const; |
| |
| int getRenderTargetSampleCount(int requestedCount, |
| GrColorType, const GrBackendFormat&) const override; |
| int getRenderTargetSampleCount(int requestedCount, GrPixelConfig) const override; |
| int getRenderTargetSampleCount(int requestedCount, MTLPixelFormat) const; |
| |
| int maxRenderTargetSampleCount(GrColorType, const GrBackendFormat&) const override; |
| int maxRenderTargetSampleCount(GrPixelConfig) const override; |
| int maxRenderTargetSampleCount(MTLPixelFormat) const; |
| |
| SupportedWrite supportedWritePixelsColorType(GrPixelConfig config, |
| GrColorType srcColorType) const override; |
| |
| SurfaceReadPixelsSupport surfaceSupportsReadPixels(const GrSurface*) const override { |
| return SurfaceReadPixelsSupport::kSupported; |
| } |
| |
| /** |
| * Returns both a supported and most prefered stencil format to use in draws. |
| */ |
| const StencilFormat& preferredStencilFormat() const { |
| return fPreferredStencilFormat; |
| } |
| |
| bool canCopyAsBlit(GrPixelConfig dstConfig, int dstSampleCount, GrPixelConfig srcConfig, |
| int srcSampleCount, const SkIRect& srcRect, const SkIPoint& dstPoint, |
| bool areDstSrcSameObj) const; |
| |
| bool canCopyAsResolve(GrSurface* dst, int dstSampleCount, GrSurface* src, int srcSampleCount, |
| const SkIRect& srcRect, const SkIPoint& dstPoint) const; |
| |
| GrColorType getYUVAColorTypeFromBackendFormat(const GrBackendFormat&) const override; |
| |
| GrBackendFormat getBackendFormatFromCompressionType(SkImage::CompressionType) const override; |
| |
| bool canClearTextureOnCreation() const override { return true; } |
| |
| GrSwizzle getTextureSwizzle(const GrBackendFormat&, GrColorType) const override; |
| GrSwizzle getOutputSwizzle(const GrBackendFormat&, GrColorType) const override; |
| |
| #if GR_TEST_UTILS |
| std::vector<TestFormatColorTypeCombination> getTestingCombinations() const override; |
| #endif |
| |
| private: |
| void initFeatureSet(MTLFeatureSet featureSet); |
| |
| void initStencilFormat(const id<MTLDevice> device); |
| |
| void initGrCaps(const id<MTLDevice> device); |
| void initShaderCaps(); |
| |
| void initFormatTable(); |
| |
| bool onSurfaceSupportsWritePixels(const GrSurface*) const override; |
| bool onCanCopySurface(const GrSurfaceProxy* dst, const GrSurfaceProxy* src, |
| const SkIRect& srcRect, const SkIPoint& dstPoint) const override; |
| GrBackendFormat onGetDefaultBackendFormat(GrColorType, GrRenderable) const override; |
| GrPixelConfig onGetConfigFromBackendFormat(const GrBackendFormat&, GrColorType) const override; |
| bool onAreColorTypeAndFormatCompatible(GrColorType, const GrBackendFormat&) const override; |
| |
| SupportedRead onSupportedReadPixelsColorType(GrColorType, const GrBackendFormat&, |
| GrColorType) const override; |
| |
| struct FormatInfo { |
| FormatInfo() : fFlags(0) {} |
| |
| enum { |
| kTextureable_Flag = 0x1, |
| kRenderable_Flag = 0x2, // Color attachment and blendable |
| kMSAA_Flag = 0x4, |
| kResolve_Flag = 0x8, |
| }; |
| static const uint16_t kAllFlags = kTextureable_Flag | kRenderable_Flag | |
| kMSAA_Flag | kResolve_Flag; |
| |
| uint16_t fFlags; |
| }; |
| #ifdef SK_BUILD_FOR_IOS |
| static constexpr size_t kNumMtlFormats = 18; |
| #else |
| static constexpr size_t kNumMtlFormats = 15; |
| #endif |
| static size_t GetFormatIndex(MTLPixelFormat); |
| FormatInfo fFormatTable[kNumMtlFormats]; |
| |
| const FormatInfo& getFormatInfo(const MTLPixelFormat pixelFormat) const { |
| size_t index = GetFormatIndex(pixelFormat); |
| return fFormatTable[index]; |
| } |
| |
| enum class Platform { |
| kMac, |
| kIOS |
| }; |
| bool isMac() { return Platform::kMac == fPlatform; } |
| bool isIOS() { return Platform::kIOS == fPlatform; } |
| |
| Platform fPlatform; |
| int fFamilyGroup; |
| int fVersion; |
| |
| SkTDArray<int> fSampleCounts; |
| |
| StencilFormat fPreferredStencilFormat; |
| |
| typedef GrCaps INHERITED; |
| }; |
| |
| #endif |