| /* |
| * Copyright 2017 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "src/gpu/mtl/GrMtlCaps.h" |
| |
| #include "include/core/SkRect.h" |
| #include "include/gpu/GrBackendSurface.h" |
| #include "include/gpu/GrRenderTarget.h" |
| #include "src/gpu/GrRenderTargetProxy.h" |
| #include "src/gpu/GrShaderCaps.h" |
| #include "src/gpu/GrSurfaceProxy.h" |
| #include "src/gpu/mtl/GrMtlUtil.h" |
| |
| #if !__has_feature(objc_arc) |
| #error This file must be compiled with Arc. Use -fobjc-arc flag |
| #endif |
| |
| GrMtlCaps::GrMtlCaps(const GrContextOptions& contextOptions, const id<MTLDevice> device, |
| MTLFeatureSet featureSet) |
| : INHERITED(contextOptions) { |
| fShaderCaps.reset(new GrShaderCaps(contextOptions)); |
| |
| this->initFeatureSet(featureSet); |
| this->initGrCaps(device); |
| this->initShaderCaps(); |
| this->initFormatTable(); |
| this->initStencilFormat(device); |
| |
| this->applyOptionsOverrides(contextOptions); |
| fShaderCaps->applyOptionsOverrides(contextOptions); |
| |
| // The following are disabled due to the unfinished Metal backend, not because Metal itself |
| // doesn't support it. |
| fFenceSyncSupport = false; // Fences are not implemented yet |
| fSemaphoreSupport = false; // Semaphores are not implemented yet |
| fCrossContextTextureSupport = false; // GrMtlGpu::prepareTextureForCrossContextUsage() not impl |
| } |
| |
| void GrMtlCaps::initFeatureSet(MTLFeatureSet featureSet) { |
| // Mac OSX |
| #ifdef SK_BUILD_FOR_MAC |
| if (MTLFeatureSet_OSX_GPUFamily1_v2 == featureSet) { |
| fPlatform = Platform::kMac; |
| fFamilyGroup = 1; |
| fVersion = 2; |
| return; |
| } |
| if (MTLFeatureSet_OSX_GPUFamily1_v1 == featureSet) { |
| fPlatform = Platform::kMac; |
| fFamilyGroup = 1; |
| fVersion = 1; |
| return; |
| } |
| #endif |
| |
| // iOS Family group 3 |
| #ifdef SK_BUILD_FOR_IOS |
| if (MTLFeatureSet_iOS_GPUFamily3_v2 == featureSet) { |
| fPlatform = Platform::kIOS; |
| fFamilyGroup = 3; |
| fVersion = 2; |
| return; |
| } |
| if (MTLFeatureSet_iOS_GPUFamily3_v1 == featureSet) { |
| fPlatform = Platform::kIOS; |
| fFamilyGroup = 3; |
| fVersion = 1; |
| return; |
| } |
| |
| // iOS Family group 2 |
| if (MTLFeatureSet_iOS_GPUFamily2_v3 == featureSet) { |
| fPlatform = Platform::kIOS; |
| fFamilyGroup = 2; |
| fVersion = 3; |
| return; |
| } |
| if (MTLFeatureSet_iOS_GPUFamily2_v2 == featureSet) { |
| fPlatform = Platform::kIOS; |
| fFamilyGroup = 2; |
| fVersion = 2; |
| return; |
| } |
| if (MTLFeatureSet_iOS_GPUFamily2_v1 == featureSet) { |
| fPlatform = Platform::kIOS; |
| fFamilyGroup = 2; |
| fVersion = 1; |
| return; |
| } |
| |
| // iOS Family group 1 |
| if (MTLFeatureSet_iOS_GPUFamily1_v3 == featureSet) { |
| fPlatform = Platform::kIOS; |
| fFamilyGroup = 1; |
| fVersion = 3; |
| return; |
| } |
| if (MTLFeatureSet_iOS_GPUFamily1_v2 == featureSet) { |
| fPlatform = Platform::kIOS; |
| fFamilyGroup = 1; |
| fVersion = 2; |
| return; |
| } |
| if (MTLFeatureSet_iOS_GPUFamily1_v1 == featureSet) { |
| fPlatform = Platform::kIOS; |
| fFamilyGroup = 1; |
| fVersion = 1; |
| return; |
| } |
| #endif |
| // No supported feature sets were found |
| SK_ABORT("Requested an unsupported feature set"); |
| } |
| |
| bool GrMtlCaps::canCopyAsBlit(GrPixelConfig dstConfig, int dstSampleCount, |
| GrPixelConfig srcConfig, int srcSampleCount, |
| const SkIRect& srcRect, const SkIPoint& dstPoint, |
| bool areDstSrcSameObj) const { |
| if (dstConfig != srcConfig) { |
| return false; |
| } |
| if ((dstSampleCount > 1 || srcSampleCount > 1) && (dstSampleCount != srcSampleCount)) { |
| return false; |
| } |
| if (areDstSrcSameObj) { |
| SkIRect dstRect = SkIRect::MakeXYWH(dstPoint.x(), dstPoint.y(), |
| srcRect.width(), srcRect.height()); |
| if (dstRect.intersect(srcRect)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| bool GrMtlCaps::canCopyAsResolve(GrSurface* dst, int dstSampleCount, |
| GrSurface* src, int srcSampleCount, |
| const SkIRect& srcRect, const SkIPoint& dstPoint) const { |
| if (dst == src) { |
| return false; |
| } |
| if (dst->backendFormat() != src->backendFormat()) { |
| return false; |
| } |
| if (dstSampleCount > 1 || srcSampleCount == 1 || !src->asRenderTarget()) { |
| return false; |
| } |
| |
| // TODO: Support copying subrectangles |
| if (dstPoint != SkIPoint::Make(0, 0)) { |
| return false; |
| } |
| if (srcRect != SkIRect::MakeXYWH(0, 0, src->width(), src->height())) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool GrMtlCaps::onCanCopySurface(const GrSurfaceProxy* dst, const GrSurfaceProxy* src, |
| const SkIRect& srcRect, const SkIPoint& dstPoint) const { |
| int dstSampleCnt = 0; |
| int srcSampleCnt = 0; |
| if (const GrRenderTargetProxy* rtProxy = dst->asRenderTargetProxy()) { |
| dstSampleCnt = rtProxy->numSamples(); |
| } |
| if (const GrRenderTargetProxy* rtProxy = src->asRenderTargetProxy()) { |
| srcSampleCnt = rtProxy->numSamples(); |
| } |
| SkASSERT((dstSampleCnt > 0) == SkToBool(dst->asRenderTargetProxy())); |
| SkASSERT((srcSampleCnt > 0) == SkToBool(src->asRenderTargetProxy())); |
| |
| return this->canCopyAsBlit(dst->config(), dstSampleCnt, src->config(), srcSampleCnt, srcRect, |
| dstPoint, dst == src); |
| } |
| |
| void GrMtlCaps::initGrCaps(const id<MTLDevice> device) { |
| // Max vertex attribs is the same on all devices |
| fMaxVertexAttributes = 31; |
| |
| // Metal does not support scissor + clear |
| fPerformPartialClearsAsDraws = true; |
| |
| // We always copy in/out of a transfer buffer so it's trivial to support row bytes. |
| fReadPixelsRowBytesSupport = true; |
| fWritePixelsRowBytesSupport = true; |
| |
| // RenderTarget and Texture size |
| if (this->isMac()) { |
| fMaxRenderTargetSize = 16384; |
| } else { |
| if (3 == fFamilyGroup) { |
| fMaxRenderTargetSize = 16384; |
| } else { |
| // Family group 1 and 2 support 8192 for version 2 and above, 4096 for v1 |
| if (1 == fVersion) { |
| fMaxRenderTargetSize = 4096; |
| } else { |
| fMaxRenderTargetSize = 8192; |
| } |
| } |
| } |
| fMaxPreferredRenderTargetSize = fMaxRenderTargetSize; |
| fMaxTextureSize = fMaxRenderTargetSize; |
| |
| // Init sample counts. All devices support 1 (i.e. 0 in skia). |
| fSampleCounts.push_back(1); |
| for (auto sampleCnt : {2, 4, 8}) { |
| if ([device supportsTextureSampleCount:sampleCnt]) { |
| fSampleCounts.push_back(sampleCnt); |
| } |
| } |
| |
| // Clamp to border is supported on Mac 10.12 and higher (gpu family.version >= 1.2). It is not |
| // supported on iOS. |
| if (this->isMac()) { |
| if (fFamilyGroup == 1 && fVersion < 2) { |
| fClampToBorderSupport = false; |
| } |
| } else { |
| fClampToBorderSupport = false; |
| } |
| |
| // Starting with the assumption that there isn't a reason to not map small buffers. |
| fBufferMapThreshold = 0; |
| |
| // Buffers are always fully mapped. |
| fMapBufferFlags = kCanMap_MapFlag; |
| |
| fOversizedStencilSupport = true; |
| |
| fSRGBSupport = true; // always available in Metal |
| fSRGBWriteControl = false; |
| fMipMapSupport = true; // always available in Metal |
| fNPOTTextureTileSupport = true; // always available in Metal |
| |
| fReuseScratchTextures = true; // Assuming this okay |
| |
| fTextureBarrierSupport = false; // Need to figure out if we can do this |
| |
| fSampleLocationsSupport = false; |
| fMultisampleDisableSupport = false; |
| |
| if (this->isMac() || 3 == fFamilyGroup) { |
| fInstanceAttribSupport = true; |
| } |
| |
| fMixedSamplesSupport = false; |
| fGpuTracingSupport = false; |
| |
| fFenceSyncSupport = true; // always available in Metal |
| fCrossContextTextureSupport = false; |
| fHalfFloatVertexAttributeSupport = true; |
| } |
| |
| static bool format_is_srgb(MTLPixelFormat format) { |
| switch (format) { |
| case MTLPixelFormatRGBA8Unorm_sRGB: |
| case MTLPixelFormatBGRA8Unorm_sRGB: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| bool GrMtlCaps::isFormatSRGB(const GrBackendFormat& format) const { |
| if (!format.getMtlFormat()) { |
| return false; |
| } |
| |
| return format_is_srgb(static_cast<MTLPixelFormat>(*format.getMtlFormat())); |
| } |
| |
| bool GrMtlCaps::isFormatCompressed(const GrBackendFormat& format) const { |
| #ifdef SK_BUILD_FOR_MAC |
| return false; |
| #else |
| if (!format.getMtlFormat()) { |
| return false; |
| } |
| |
| MTLPixelFormat mtlFormat = static_cast<MTLPixelFormat>(*format.getMtlFormat()); |
| |
| return mtlFormat == MTLPixelFormatETC2_RGB8; |
| #endif |
| } |
| |
| bool GrMtlCaps::isFormatTexturable(GrColorType, const GrBackendFormat& format) const { |
| if (!format.getMtlFormat()) { |
| return false; |
| } |
| |
| MTLPixelFormat mtlFormat = static_cast<MTLPixelFormat>(*format.getMtlFormat()); |
| return this->isFormatTexturable(mtlFormat); |
| } |
| |
| bool GrMtlCaps::isConfigTexturable(GrPixelConfig config) const { |
| MTLPixelFormat format; |
| if (!GrPixelConfigToMTLFormat(config, &format)) { |
| return false; |
| } |
| return this->isFormatTexturable(format); |
| } |
| |
| bool GrMtlCaps::isFormatTexturable(MTLPixelFormat format) const { |
| const FormatInfo& formatInfo = this->getFormatInfo(format); |
| return SkToBool(FormatInfo::kTextureable_Flag && formatInfo.fFlags); |
| } |
| |
| bool GrMtlCaps::isFormatRenderable(MTLPixelFormat format) const { |
| return this->maxRenderTargetSampleCount(format) > 0; |
| } |
| |
| int GrMtlCaps::maxRenderTargetSampleCount(GrColorType grColorType, |
| const GrBackendFormat& format) const { |
| if (!format.getMtlFormat()) { |
| return 0; |
| } |
| |
| // Currently we don't allow RGB_888X to be renderable because we don't have a way to |
| // handle blends that reference dst alpha when the values in the dst alpha channel are |
| // uninitialized. |
| if (GrColorType::kRGB_888x == grColorType) { |
| return 0; |
| } |
| |
| MTLPixelFormat mtlFormat = static_cast<MTLPixelFormat>(*format.getMtlFormat()); |
| return this->maxRenderTargetSampleCount(mtlFormat); |
| } |
| |
| int GrMtlCaps::maxRenderTargetSampleCount(GrPixelConfig config) const { |
| // Currently we don't allow RGB_888X or RGB_888 to be renderable because we don't have a way to |
| // handle blends that reference dst alpha when the values in the dst alpha channel are |
| // uninitialized. |
| if (config == kRGB_888X_GrPixelConfig || config == kRGB_888_GrPixelConfig) { |
| return 0; |
| } |
| |
| MTLPixelFormat format; |
| if (!GrPixelConfigToMTLFormat(config, &format)) { |
| return 0; |
| } |
| return this->maxRenderTargetSampleCount(format); |
| } |
| |
| int GrMtlCaps::maxRenderTargetSampleCount(MTLPixelFormat format) const { |
| const FormatInfo& formatInfo = this->getFormatInfo(format); |
| if (formatInfo.fFlags & FormatInfo::kMSAA_Flag) { |
| return fSampleCounts[fSampleCounts.count() - 1]; |
| } else if (formatInfo.fFlags & FormatInfo::kRenderable_Flag) { |
| return 1; |
| } |
| return 0; |
| } |
| |
| int GrMtlCaps::getRenderTargetSampleCount(int requestedCount, GrColorType grColorType, |
| const GrBackendFormat& format) const { |
| if (!format.getMtlFormat()) { |
| return 0; |
| } |
| |
| // Currently we don't allow RGB_888X to be renderable because we don't have a way to |
| // handle blends that reference dst alpha when the values in the dst alpha channel are |
| // uninitialized. |
| if (GrColorType::kRGB_888x == grColorType) { |
| return 0; |
| } |
| |
| MTLPixelFormat mtlFormat = static_cast<MTLPixelFormat>(*format.getMtlFormat()); |
| return this->getRenderTargetSampleCount(requestedCount, mtlFormat); |
| } |
| |
| int GrMtlCaps::getRenderTargetSampleCount(int requestedCount, GrPixelConfig config) const { |
| // Currently we don't allow RGB_888X or RGB_888 to be renderable because we don't have a way to |
| // handle blends that reference dst alpha when the values in the dst alpha channel are |
| // uninitialized. |
| if (config == kRGB_888X_GrPixelConfig || config == kRGB_888_GrPixelConfig) { |
| return 0; |
| } |
| |
| MTLPixelFormat format; |
| if (!GrPixelConfigToMTLFormat(config, &format)) { |
| return 0; |
| } |
| return this->getRenderTargetSampleCount(requestedCount, format); |
| } |
| |
| int GrMtlCaps::getRenderTargetSampleCount(int requestedCount, MTLPixelFormat format) const { |
| requestedCount = SkTMax(requestedCount, 1); |
| const FormatInfo& formatInfo = this->getFormatInfo(format); |
| if (formatInfo.fFlags & FormatInfo::kMSAA_Flag) { |
| int count = fSampleCounts.count(); |
| for (int i = 0; i < count; ++i) { |
| if (fSampleCounts[i] >= requestedCount) { |
| return fSampleCounts[i]; |
| } |
| } |
| } else if (formatInfo.fFlags & FormatInfo::kRenderable_Flag) { |
| return 1 == requestedCount ? 1 : 0; |
| } |
| return 0; |
| } |
| |
| void GrMtlCaps::initShaderCaps() { |
| GrShaderCaps* shaderCaps = fShaderCaps.get(); |
| |
| // Setting this true with the assumption that this cap will eventually mean we support varying |
| // precisions and not just via modifiers. |
| shaderCaps->fUsesPrecisionModifiers = true; |
| shaderCaps->fFlatInterpolationSupport = true; |
| // We haven't yet tested that using flat attributes perform well. |
| shaderCaps->fPreferFlatInterpolation = true; |
| |
| shaderCaps->fShaderDerivativeSupport = true; |
| shaderCaps->fGeometryShaderSupport = false; |
| |
| if ((this->isMac() && fVersion >= 2) || |
| (this->isIOS() && ((1 == fFamilyGroup && 4 == fVersion) || |
| (2 == fFamilyGroup && 4 == fVersion) || |
| (3 == fFamilyGroup && 3 == fVersion)))) { |
| shaderCaps->fDualSourceBlendingSupport = true; |
| } |
| |
| // TODO: Re-enable this once skbug:8720 is fixed. Will also need to remove asserts in |
| // GrMtlPipelineStateBuilder which assert we aren't using this feature. |
| #if 0 |
| if (this->isIOS()) { |
| shaderCaps->fFBFetchSupport = true; |
| shaderCaps->fFBFetchNeedsCustomOutput = true; // ?? |
| shaderCaps->fFBFetchColorName = ""; // Somehow add [[color(0)]] to arguments to frag shader |
| } |
| #endif |
| shaderCaps->fDstReadInShaderSupport = shaderCaps->fFBFetchSupport; |
| |
| shaderCaps->fIntegerSupport = true; |
| shaderCaps->fVertexIDSupport = false; |
| |
| // Metal uses IEEE float and half floats so assuming those values here. |
| shaderCaps->fFloatIs32Bits = true; |
| shaderCaps->fHalfIs32Bits = false; |
| |
| shaderCaps->fMaxFragmentSamplers = 16; |
| } |
| |
| // These are all the valid MTLPixelFormats that we support in Skia. They are roughly ordered from |
| // most frequently used to least to improve look up times in arrays. |
| static constexpr MTLPixelFormat kMtlFormats[] = { |
| MTLPixelFormatInvalid, |
| |
| MTLPixelFormatRGBA8Unorm, |
| MTLPixelFormatR8Unorm, |
| MTLPixelFormatA8Unorm, |
| MTLPixelFormatBGRA8Unorm, |
| #ifdef SK_BUILD_FOR_IOS |
| MTLPixelFormatB5G6R5Unorm, |
| #endif |
| MTLPixelFormatRGBA16Float, |
| MTLPixelFormatR16Float, |
| MTLPixelFormatRG8Unorm, |
| MTLPixelFormatRGB10A2Unorm, |
| #ifdef SK_BUILD_FOR_IOS |
| MTLPixelFormatABGR4Unorm, |
| #endif |
| MTLPixelFormatRGBA32Float, |
| MTLPixelFormatRGBA8Unorm_sRGB, |
| MTLPixelFormatR16Unorm, |
| MTLPixelFormatRG16Unorm, |
| #ifdef SK_BUILD_FOR_IOS |
| MTLPixelFormatETC2_RGB8, |
| #endif |
| // Experimental (for Y416 and mutant P016/P010) |
| MTLPixelFormatRGBA16Unorm, |
| MTLPixelFormatRG16Float, |
| }; |
| |
| size_t GrMtlCaps::GetFormatIndex(MTLPixelFormat pixelFormat) { |
| static_assert(SK_ARRAY_COUNT(kMtlFormats) == GrMtlCaps::kNumMtlFormats, |
| "Size of kMtlFormats array must match static value in header"); |
| // Start at 1, 0 is sentinel value (MTLPixelFormatInvalid) |
| for (size_t i = 1; i < GrMtlCaps::kNumMtlFormats; ++i) { |
| if (kMtlFormats[i] == pixelFormat) { |
| return i; |
| } |
| } |
| SK_ABORT("Invalid MTLPixelFormat"); |
| return 0; |
| } |
| |
| void GrMtlCaps::initFormatTable() { |
| FormatInfo* info; |
| |
| // R8Unorm |
| info = &fFormatTable[GetFormatIndex(MTLPixelFormatR8Unorm)]; |
| info->fFlags = FormatInfo::kAllFlags; |
| |
| // A8Unorm |
| info = &fFormatTable[GetFormatIndex(MTLPixelFormatA8Unorm)]; |
| info->fFlags = FormatInfo::kTextureable_Flag; |
| |
| #ifdef SK_BUILD_FOR_IOS |
| // B5G6R5Unorm |
| info = &fFormatTable[GetFormatIndex(MTLPixelFormatB5G6R5Unorm)]; |
| info->fFlags = FormatInfo::kAllFlags; |
| |
| // ABGR4Unorm |
| info = &fFormatTable[GetFormatIndex(MTLPixelFormatABGR4Unorm)]; |
| info->fFlags = FormatInfo::kAllFlags; |
| #endif |
| |
| // RGBA8Unorm |
| info = &fFormatTable[GetFormatIndex(MTLPixelFormatRGBA8Unorm)]; |
| info->fFlags = FormatInfo::kAllFlags; |
| |
| // RG8Unorm |
| info = &fFormatTable[GetFormatIndex(MTLPixelFormatRG8Unorm)]; |
| info->fFlags = FormatInfo::kTextureable_Flag; |
| |
| // BGRA_8888 uses BGRA8Unorm |
| info = &fFormatTable[GetFormatIndex(MTLPixelFormatBGRA8Unorm)]; |
| info->fFlags = FormatInfo::kAllFlags; |
| |
| // RGBA8Unorm_sRGB |
| info = &fFormatTable[GetFormatIndex(MTLPixelFormatRGBA8Unorm_sRGB)]; |
| info->fFlags = FormatInfo::kAllFlags; |
| |
| // RGB10A2Unorm |
| info = &fFormatTable[GetFormatIndex(MTLPixelFormatRGB10A2Unorm)]; |
| if (this->isMac() || fFamilyGroup >= 3) { |
| info->fFlags = FormatInfo::kAllFlags; |
| } else { |
| info->fFlags = FormatInfo::kTextureable_Flag; |
| } |
| |
| // RGBA32Float |
| info = &fFormatTable[GetFormatIndex(MTLPixelFormatRGBA32Float)]; |
| if (this->isMac()) { |
| info->fFlags = FormatInfo::kAllFlags; |
| } else { |
| info->fFlags = 0; |
| } |
| |
| // R16Float |
| info = &fFormatTable[GetFormatIndex(MTLPixelFormatR16Float)]; |
| info->fFlags = FormatInfo::kAllFlags; |
| |
| // RGBA16Float |
| info = &fFormatTable[GetFormatIndex(MTLPixelFormatRGBA16Float)]; |
| info->fFlags = FormatInfo::kAllFlags; |
| |
| // R16Unorm |
| info = &fFormatTable[GetFormatIndex(MTLPixelFormatR16Unorm)]; |
| if (this->isMac()) { |
| info->fFlags = FormatInfo::kAllFlags; |
| } else { |
| info->fFlags = FormatInfo::kTextureable_Flag | FormatInfo::kRenderable_Flag; |
| } |
| |
| // RG16Unorm |
| info = &fFormatTable[GetFormatIndex(MTLPixelFormatRG16Unorm)]; |
| if (this->isMac()) { |
| info->fFlags = FormatInfo::kAllFlags; |
| } else { |
| info->fFlags = FormatInfo::kTextureable_Flag | FormatInfo::kRenderable_Flag; |
| } |
| |
| #ifdef SK_BUILD_FOR_IOS |
| // ETC2_RGB8 |
| info = &fFormatTable[GetFormatIndex(MTLPixelFormatETC2_RGB8)]; |
| info->fFlags = 0; // TBD |
| #endif |
| |
| // Experimental (for Y416 and mutant P016/P010) |
| |
| // RGBA16Unorm |
| info = &fFormatTable[GetFormatIndex(MTLPixelFormatRGBA16Unorm)]; |
| if (this->isMac()) { |
| info->fFlags = FormatInfo::kAllFlags; |
| } else { |
| info->fFlags = FormatInfo::kTextureable_Flag | FormatInfo::kRenderable_Flag; |
| } |
| |
| // RG16Float |
| info = &fFormatTable[GetFormatIndex(MTLPixelFormatRG16Float)]; |
| info->fFlags = FormatInfo::kAllFlags; |
| } |
| |
| void GrMtlCaps::initStencilFormat(id<MTLDevice> physDev) { |
| fPreferredStencilFormat = StencilFormat{ MTLPixelFormatStencil8, 8, 8, true }; |
| } |
| |
| bool GrMtlCaps::onSurfaceSupportsWritePixels(const GrSurface* surface) const { |
| if (auto rt = surface->asRenderTarget()) { |
| return rt->numSamples() <= 1 && SkToBool(surface->asTexture()); |
| } |
| return true; |
| } |
| |
| // A near clone of format_color_type_valid_pair |
| static constexpr GrPixelConfig validate_sized_format(GrMTLPixelFormat grFormat, GrColorType ct) { |
| MTLPixelFormat format = static_cast<MTLPixelFormat>(grFormat); |
| switch (ct) { |
| case GrColorType::kUnknown: |
| return kUnknown_GrPixelConfig; |
| case GrColorType::kAlpha_8: |
| if (MTLPixelFormatA8Unorm == format) { |
| return kAlpha_8_as_Alpha_GrPixelConfig; |
| } else if (MTLPixelFormatR8Unorm == format) { |
| return kAlpha_8_as_Red_GrPixelConfig; |
| } |
| break; |
| #ifdef SK_BUILD_FOR_MAC |
| case GrColorType::kBGR_565: |
| case GrColorType::kABGR_4444: |
| return kUnknown_GrPixelConfig; |
| #else |
| case GrColorType::kBGR_565: |
| if (MTLPixelFormatB5G6R5Unorm == format) { |
| return kRGB_565_GrPixelConfig; |
| } |
| break; |
| case GrColorType::kABGR_4444: |
| if (MTLPixelFormatABGR4Unorm == format) { |
| return kRGBA_4444_GrPixelConfig; |
| } |
| break; |
| #endif |
| case GrColorType::kRGBA_8888: |
| if (MTLPixelFormatRGBA8Unorm == format) { |
| return kRGBA_8888_GrPixelConfig; |
| } |
| break; |
| case GrColorType::kRGBA_8888_SRGB: |
| if (MTLPixelFormatRGBA8Unorm_sRGB == format) { |
| return kSRGBA_8888_GrPixelConfig; |
| } |
| break; |
| case GrColorType::kRGB_888x: |
| if (MTLPixelFormatRGBA8Unorm == format) { |
| return kRGB_888X_GrPixelConfig; |
| } |
| break; |
| case GrColorType::kRG_88: |
| if (MTLPixelFormatRG8Unorm == format) { |
| return kRG_88_GrPixelConfig; |
| } |
| break; |
| case GrColorType::kBGRA_8888: |
| if (MTLPixelFormatBGRA8Unorm == format) { |
| return kBGRA_8888_GrPixelConfig; |
| } |
| break; |
| case GrColorType::kRGBA_1010102: |
| if (MTLPixelFormatRGB10A2Unorm == format) { |
| return kRGBA_1010102_GrPixelConfig; |
| } |
| break; |
| case GrColorType::kGray_8: |
| if (MTLPixelFormatR8Unorm == format) { |
| return kGray_8_as_Red_GrPixelConfig; |
| } |
| break; |
| case GrColorType::kAlpha_F16: |
| if (MTLPixelFormatR16Float == format) { |
| return kAlpha_half_as_Red_GrPixelConfig; |
| } |
| break; |
| case GrColorType::kRGBA_F16: |
| if (MTLPixelFormatRGBA16Float == format) { |
| return kRGBA_half_GrPixelConfig; |
| } |
| break; |
| case GrColorType::kRGBA_F16_Clamped: |
| if (MTLPixelFormatRGBA16Float == format) { |
| return kRGBA_half_Clamped_GrPixelConfig; |
| } |
| break; |
| case GrColorType::kRGBA_F32: |
| if (MTLPixelFormatRGBA32Float == format) { |
| return kRGBA_float_GrPixelConfig; |
| } |
| break; |
| case GrColorType::kR_16: |
| if (MTLPixelFormatR16Unorm == format) { |
| return kR_16_GrPixelConfig; |
| } |
| break; |
| case GrColorType::kRG_1616: |
| if (MTLPixelFormatRG16Unorm == format) { |
| return kRG_1616_GrPixelConfig; |
| } |
| break; |
| case GrColorType::kRGBA_16161616: |
| if (MTLPixelFormatRGBA16Unorm == format) { |
| return kRGBA_16161616_GrPixelConfig; |
| } |
| break; |
| case GrColorType::kRG_F16: |
| if (MTLPixelFormatRG16Float == format) { |
| return kRG_half_GrPixelConfig; |
| } |
| break; |
| case GrColorType::kAlpha_8xxx: |
| case GrColorType::kAlpha_F32xxx: |
| case GrColorType::kGray_8xxx: |
| return kUnknown_GrPixelConfig; |
| } |
| SkUNREACHABLE; |
| } |
| |
| bool GrMtlCaps::onAreColorTypeAndFormatCompatible(GrColorType ct, |
| const GrBackendFormat& format) const { |
| const GrMTLPixelFormat* mtlFormat = format.getMtlFormat(); |
| if (!mtlFormat) { |
| return false; |
| } |
| |
| return kUnknown_GrPixelConfig != validate_sized_format(*mtlFormat, ct); |
| } |
| |
| |
| GrPixelConfig GrMtlCaps::onGetConfigFromBackendFormat(const GrBackendFormat& format, |
| GrColorType ct) const { |
| const GrMTLPixelFormat* mtlFormat = format.getMtlFormat(); |
| if (!mtlFormat) { |
| return kUnknown_GrPixelConfig; |
| } |
| return validate_sized_format(*mtlFormat, ct); |
| } |
| |
| GrColorType GrMtlCaps::getYUVAColorTypeFromBackendFormat(const GrBackendFormat& format) const { |
| const GrMTLPixelFormat* grMtlFormat = format.getMtlFormat(); |
| if (!grMtlFormat) { |
| return GrColorType::kUnknown; |
| } |
| |
| MTLPixelFormat mtlFormat = static_cast<MTLPixelFormat>(*grMtlFormat); |
| |
| switch (mtlFormat) { |
| case MTLPixelFormatA8Unorm: // fall through |
| case MTLPixelFormatR8Unorm: return GrColorType::kAlpha_8; |
| case MTLPixelFormatRG8Unorm: return GrColorType::kRG_88; |
| case MTLPixelFormatRGBA8Unorm: return GrColorType::kRGBA_8888; |
| case MTLPixelFormatBGRA8Unorm: return GrColorType::kBGRA_8888; |
| case MTLPixelFormatRGB10A2Unorm: return GrColorType::kRGBA_1010102; |
| case MTLPixelFormatR16Unorm: return GrColorType::kR_16; |
| case MTLPixelFormatRG16Unorm: return GrColorType::kRG_1616; |
| // Experimental (for Y416 and mutant P016/P010) |
| case MTLPixelFormatRGBA16Unorm: return GrColorType::kRGBA_16161616; |
| case MTLPixelFormatRG16Float: return GrColorType::kRG_F16; |
| default: return GrColorType::kUnknown; |
| } |
| |
| SkUNREACHABLE; |
| } |
| |
| GrBackendFormat GrMtlCaps::onGetDefaultBackendFormat(GrColorType ct, |
| GrRenderable renderable) const { |
| GrPixelConfig config = GrColorTypeToPixelConfig(ct); |
| if (config == kUnknown_GrPixelConfig) { |
| return GrBackendFormat(); |
| } |
| MTLPixelFormat format; |
| if (!GrPixelConfigToMTLFormat(config, &format)) { |
| return GrBackendFormat(); |
| } |
| return GrBackendFormat::MakeMtl(format); |
| } |
| |
| GrBackendFormat GrMtlCaps::getBackendFormatFromCompressionType( |
| SkImage::CompressionType compressionType) const { |
| switch (compressionType) { |
| case SkImage::kETC1_CompressionType: |
| #ifdef SK_BUILD_FOR_MAC |
| return {}; |
| #else |
| return GrBackendFormat::MakeMtl(MTLPixelFormatETC2_RGB8); |
| #endif |
| } |
| SK_ABORT("Invalid compression type"); |
| return {}; |
| } |
| |
| #ifdef SK_DEBUG |
| static constexpr bool format_color_type_valid_pair(MTLPixelFormat format, GrColorType colorType) { |
| switch (colorType) { |
| case GrColorType::kUnknown: |
| return false; |
| case GrColorType::kAlpha_8: |
| return MTLPixelFormatA8Unorm == format || MTLPixelFormatR8Unorm == format; |
| case GrColorType::kBGR_565: |
| #ifdef SK_BUILD_FOR_MAC |
| return false; |
| #else |
| return MTLPixelFormatB5G6R5Unorm == format; |
| #endif |
| case GrColorType::kABGR_4444: |
| #ifdef SK_BUILD_FOR_MAC |
| return false; |
| #else |
| return MTLPixelFormatABGR4Unorm == format; |
| #endif |
| case GrColorType::kRGBA_8888: |
| return MTLPixelFormatRGBA8Unorm == format; |
| case GrColorType::kRGBA_8888_SRGB: |
| return MTLPixelFormatRGBA8Unorm_sRGB == format; |
| case GrColorType::kRGB_888x: |
| GR_STATIC_ASSERT(GrCompressionTypeClosestColorType(SkImage::kETC1_CompressionType) == |
| GrColorType::kRGB_888x); |
| #ifdef SK_BUILD_FOR_MAC |
| return MTLPixelFormatRGBA8Unorm == format; |
| #else |
| return MTLPixelFormatRGBA8Unorm == format || MTLPixelFormatETC2_RGB8 == format; |
| #endif |
| case GrColorType::kRG_88: |
| return MTLPixelFormatRG8Unorm == format; |
| case GrColorType::kBGRA_8888: |
| return MTLPixelFormatBGRA8Unorm == format || MTLPixelFormatBGRA8Unorm_sRGB == format; |
| case GrColorType::kRGBA_1010102: |
| return MTLPixelFormatRGB10A2Unorm == format; |
| case GrColorType::kGray_8: |
| return MTLPixelFormatR8Unorm == format; |
| case GrColorType::kAlpha_F16: |
| return MTLPixelFormatR16Float == format; |
| case GrColorType::kRGBA_F16: |
| return MTLPixelFormatRGBA16Float == format; |
| case GrColorType::kRGBA_F16_Clamped: |
| return MTLPixelFormatRGBA16Float == format; |
| case GrColorType::kRGBA_F32: |
| return MTLPixelFormatRGBA32Float == format; |
| case GrColorType::kR_16: |
| return MTLPixelFormatR16Unorm == format; |
| case GrColorType::kRG_1616: |
| return MTLPixelFormatRG16Unorm == format; |
| // Experimental (for Y416 and mutant P016/P010) |
| case GrColorType::kRGBA_16161616: |
| return MTLPixelFormatRGBA16Unorm == format; |
| case GrColorType::kRG_F16: |
| return MTLPixelFormatRG16Float == format; |
| case GrColorType::kAlpha_8xxx: |
| case GrColorType::kAlpha_F32xxx: |
| case GrColorType::kGray_8xxx: |
| return false; |
| } |
| SkUNREACHABLE; |
| } |
| #endif |
| |
| static GrSwizzle get_swizzle(const GrBackendFormat& format, GrColorType colorType, |
| bool forOutput) { |
| SkASSERT(format.getMtlFormat()); |
| MTLPixelFormat mtlFormat = static_cast<MTLPixelFormat>(*format.getMtlFormat()); |
| |
| SkASSERT(format_color_type_valid_pair(mtlFormat, colorType)); |
| |
| switch (colorType) { |
| case GrColorType::kAlpha_8: |
| if (mtlFormat == MTLPixelFormatA8Unorm) { |
| if (!forOutput) { |
| return GrSwizzle::AAAA(); |
| } |
| } else { |
| SkASSERT(mtlFormat == MTLPixelFormatR8Unorm); |
| if (forOutput) { |
| return GrSwizzle::AAAA(); |
| } else { |
| return GrSwizzle::RRRR(); |
| } |
| } |
| break; |
| case GrColorType::kAlpha_F16: |
| if (forOutput) { |
| return GrSwizzle::AAAA(); |
| } else { |
| return GrSwizzle::RRRR(); |
| } |
| case GrColorType::kGray_8: |
| if (!forOutput) { |
| return GrSwizzle::RRRA(); |
| } |
| break; |
| case GrColorType::kRGB_888x: |
| return GrSwizzle::RGB1(); |
| default: |
| return GrSwizzle::RGBA(); |
| } |
| return GrSwizzle::RGBA(); |
| } |
| |
| GrSwizzle GrMtlCaps::getTextureSwizzle(const GrBackendFormat& format, GrColorType colorType) const { |
| return get_swizzle(format, colorType, false); |
| } |
| GrSwizzle GrMtlCaps::getOutputSwizzle(const GrBackendFormat& format, GrColorType colorType) const { |
| return get_swizzle(format, colorType, true); |
| } |
| |
| GrCaps::SupportedWrite GrMtlCaps::supportedWritePixelsColorType(GrPixelConfig config, |
| GrColorType srcColorType) const { |
| GrColorType ct = GrPixelConfigToColorType(config); |
| return {ct, GrColorTypeBytesPerPixel(ct)}; |
| } |
| |
| GrCaps::SupportedRead GrMtlCaps::onSupportedReadPixelsColorType( |
| GrColorType srcColorType, const GrBackendFormat& srcBackendFormat, |
| GrColorType dstColorType) const { |
| const GrMTLPixelFormat* grMtlFormat = srcBackendFormat.getMtlFormat(); |
| if (!grMtlFormat) { |
| return {GrColorType::kUnknown, 0}; |
| } |
| |
| GrColorType readCT = GrColorType::kUnknown; |
| switch (*grMtlFormat) { |
| case MTLPixelFormatRGBA8Unorm: |
| readCT = GrColorType::kRGBA_8888; |
| break; |
| case MTLPixelFormatR8Unorm: |
| if (srcColorType == GrColorType::kAlpha_8) { |
| readCT = GrColorType::kAlpha_8; |
| } else if (srcColorType == GrColorType::kGray_8) { |
| readCT = GrColorType::kGray_8; |
| } |
| break; |
| case MTLPixelFormatA8Unorm: |
| readCT = GrColorType::kAlpha_8; |
| break; |
| case MTLPixelFormatBGRA8Unorm: |
| readCT = GrColorType::kBGRA_8888; |
| break; |
| #ifdef SK_BUILD_FOR_IOS |
| case MTLPixelFormatB5G6R5Unorm: |
| readCT = GrColorType::kBGR_565; |
| break; |
| #endif |
| case MTLPixelFormatRGBA16Float: |
| if (srcColorType == GrColorType::kRGBA_F16) { |
| readCT = GrColorType::kRGBA_F16; |
| } else if (srcColorType == GrColorType::kRGBA_F16_Clamped){ |
| readCT = GrColorType::kRGBA_F16_Clamped; |
| } |
| break; |
| case MTLPixelFormatR16Float: |
| readCT = GrColorType::kAlpha_F16; |
| break; |
| case MTLPixelFormatRG8Unorm: |
| readCT = GrColorType::kRG_88; |
| break; |
| case MTLPixelFormatRGB10A2Unorm: |
| readCT = GrColorType::kRGBA_1010102; |
| break; |
| #ifdef SK_BUILD_FOR_IOS |
| case MTLPixelFormatABGR4Unorm: |
| readCT = GrColorType::kABGR_4444; |
| break; |
| #endif |
| case MTLPixelFormatRGBA32Float: |
| readCT = GrColorType::kRGBA_F32; |
| break; |
| case MTLPixelFormatRGBA8Unorm_sRGB: |
| readCT = GrColorType::kRGBA_8888_SRGB; |
| break; |
| case MTLPixelFormatR16Unorm: |
| readCT = GrColorType::kR_16; |
| break; |
| case MTLPixelFormatRG16Unorm: |
| readCT = GrColorType::kRG_1616; |
| break; |
| // Experimental (for Y416 and mutant P016/P010) |
| case MTLPixelFormatRGBA16Unorm: |
| readCT = GrColorType::kRGBA_16161616; |
| break; |
| case MTLPixelFormatRG16Float: |
| readCT = GrColorType::kRG_F16; |
| break; |
| default: |
| // readCT stays as kUnknown |
| break; |
| } |
| // Metal requires the destination offset for copyFromTexture to be a multiple of the textures |
| // pixels size. |
| return {readCT, GrColorTypeBytesPerPixel(readCT)}; |
| } |
| |