| /* | |
| * Copyright 2015 Google Inc. | |
| * | |
| * Use of this source code is governed by a BSD-style license that can be | |
| * found in the LICENSE file. | |
| */ | |
| #include "GrVkCaps.h" | |
| #include "GrVkUtil.h" | |
| #include "glsl/GrGLSLCaps.h" | |
| #include "vk/GrVkInterface.h" | |
| #include "vk/GrVkBackendContext.h" | |
| GrVkCaps::GrVkCaps(const GrContextOptions& contextOptions, const GrVkInterface* vkInterface, | |
| VkPhysicalDevice physDev, uint32_t featureFlags, uint32_t extensionFlags) | |
| : INHERITED(contextOptions) { | |
| fCanUseGLSLForShaderModule = false; | |
| /************************************************************************** | |
| * GrDrawTargetCaps fields | |
| **************************************************************************/ | |
| fMipMapSupport = true; // always available in Vulkan | |
| fSRGBSupport = true; // always available in Vulkan | |
| fNPOTTextureTileSupport = true; // always available in Vulkan | |
| fTwoSidedStencilSupport = true; // always available in Vulkan | |
| fStencilWrapOpsSupport = true; // always available in Vulkan | |
| fDiscardRenderTargetSupport = true; | |
| fReuseScratchTextures = true; //TODO: figure this out | |
| fGpuTracingSupport = false; //TODO: figure this out | |
| fCompressedTexSubImageSupport = false; //TODO: figure this out | |
| fOversizedStencilSupport = false; //TODO: figure this out | |
| fUseDrawInsteadOfClear = false; | |
| fMapBufferFlags = kNone_MapFlags; //TODO: figure this out | |
| fBufferMapThreshold = SK_MaxS32; //TODO: figure this out | |
| fMaxRenderTargetSize = 4096; // minimum required by spec | |
| fMaxTextureSize = 4096; // minimum required by spec | |
| fMaxColorSampleCount = 4; // minimum required by spec | |
| fMaxStencilSampleCount = 4; // minimum required by spec | |
| fShaderCaps.reset(new GrGLSLCaps(contextOptions)); | |
| this->init(contextOptions, vkInterface, physDev, featureFlags, extensionFlags); | |
| } | |
| void GrVkCaps::init(const GrContextOptions& contextOptions, const GrVkInterface* vkInterface, | |
| VkPhysicalDevice physDev, uint32_t featureFlags, uint32_t extensionFlags) { | |
| VkPhysicalDeviceProperties properties; | |
| GR_VK_CALL(vkInterface, GetPhysicalDeviceProperties(physDev, &properties)); | |
| VkPhysicalDeviceMemoryProperties memoryProperties; | |
| GR_VK_CALL(vkInterface, GetPhysicalDeviceMemoryProperties(physDev, &memoryProperties)); | |
| this->initGrCaps(properties, memoryProperties, featureFlags); | |
| this->initGLSLCaps(properties, featureFlags); | |
| this->initConfigTable(vkInterface, physDev); | |
| this->initStencilFormat(vkInterface, physDev); | |
| if (SkToBool(extensionFlags & kNV_glsl_shader_GrVkExtensionFlag)) { | |
| // Currently disabling this feature since it does not play well with validation layers which | |
| // expect a SPIR-V shader | |
| // fCanUseGLSLForShaderModule = true; | |
| } | |
| this->applyOptionsOverrides(contextOptions); | |
| GrGLSLCaps* glslCaps = static_cast<GrGLSLCaps*>(fShaderCaps.get()); | |
| glslCaps->applyOptionsOverrides(contextOptions); | |
| } | |
| int get_max_sample_count(VkSampleCountFlags flags) { | |
| SkASSERT(flags & VK_SAMPLE_COUNT_1_BIT); | |
| if (!(flags & VK_SAMPLE_COUNT_2_BIT)) { | |
| return 0; | |
| } | |
| if (!(flags & VK_SAMPLE_COUNT_4_BIT)) { | |
| return 2; | |
| } | |
| if (!(flags & VK_SAMPLE_COUNT_8_BIT)) { | |
| return 4; | |
| } | |
| if (!(flags & VK_SAMPLE_COUNT_16_BIT)) { | |
| return 8; | |
| } | |
| if (!(flags & VK_SAMPLE_COUNT_32_BIT)) { | |
| return 16; | |
| } | |
| if (!(flags & VK_SAMPLE_COUNT_64_BIT)) { | |
| return 32; | |
| } | |
| return 64; | |
| } | |
| void GrVkCaps::initSampleCount(const VkPhysicalDeviceProperties& properties) { | |
| VkSampleCountFlags colorSamples = properties.limits.framebufferColorSampleCounts; | |
| VkSampleCountFlags stencilSamples = properties.limits.framebufferStencilSampleCounts; | |
| fMaxColorSampleCount = get_max_sample_count(colorSamples); | |
| fMaxStencilSampleCount = get_max_sample_count(stencilSamples); | |
| } | |
| void GrVkCaps::initGrCaps(const VkPhysicalDeviceProperties& properties, | |
| const VkPhysicalDeviceMemoryProperties& memoryProperties, | |
| uint32_t featureFlags) { | |
| fMaxVertexAttributes = properties.limits.maxVertexInputAttributes; | |
| // We could actually query and get a max size for each config, however maxImageDimension2D will | |
| // give the minimum max size across all configs. So for simplicity we will use that for now. | |
| fMaxRenderTargetSize = properties.limits.maxImageDimension2D; | |
| fMaxTextureSize = properties.limits.maxImageDimension2D; | |
| this->initSampleCount(properties); | |
| // Assuming since we will always map in the end to upload the data we might as well just map | |
| // from the get go. There is no hard data to suggest this is faster or slower. | |
| fBufferMapThreshold = 0; | |
| fMapBufferFlags = kCanMap_MapFlag | kSubset_MapFlag; | |
| fStencilWrapOpsSupport = true; | |
| fOversizedStencilSupport = true; | |
| fSampleShadingSupport = SkToBool(featureFlags & kSampleRateShading_GrVkFeatureFlag); | |
| } | |
| void GrVkCaps::initGLSLCaps(const VkPhysicalDeviceProperties& properties, | |
| uint32_t featureFlags) { | |
| GrGLSLCaps* glslCaps = static_cast<GrGLSLCaps*>(fShaderCaps.get()); | |
| glslCaps->fVersionDeclString = "#version 330\n"; | |
| // fConfigOutputSwizzle will default to RGBA so we only need to set it for alpha only config. | |
| for (int i = 0; i < kGrPixelConfigCnt; ++i) { | |
| GrPixelConfig config = static_cast<GrPixelConfig>(i); | |
| if (GrPixelConfigIsAlphaOnly(config)) { | |
| glslCaps->fConfigTextureSwizzle[i] = GrSwizzle::RRRR(); | |
| glslCaps->fConfigOutputSwizzle[i] = GrSwizzle::AAAA(); | |
| } else { | |
| if (kRGBA_4444_GrPixelConfig == config) { | |
| // The vulkan spec does not require R4G4B4A4 to be supported for texturing so we | |
| // store the data in a B4G4R4A4 texture and then swizzle it when doing texture reads | |
| // or writing to outputs. Since we're not actually changing the data at all, the | |
| // only extra work is the swizzle in the shader for all operations. | |
| glslCaps->fConfigTextureSwizzle[i] = GrSwizzle::BGRA(); | |
| glslCaps->fConfigOutputSwizzle[i] = GrSwizzle::BGRA(); | |
| } else { | |
| glslCaps->fConfigTextureSwizzle[i] = GrSwizzle::RGBA(); | |
| } | |
| } | |
| } | |
| // Vulkan is based off ES 3.0 so the following should all be supported | |
| glslCaps->fUsesPrecisionModifiers = true; | |
| glslCaps->fFlatInterpolationSupport = true; | |
| // GrShaderCaps | |
| glslCaps->fShaderDerivativeSupport = true; | |
| glslCaps->fGeometryShaderSupport = SkToBool(featureFlags & kGeometryShader_GrVkFeatureFlag); | |
| glslCaps->fDualSourceBlendingSupport = SkToBool(featureFlags & kDualSrcBlend_GrVkFeatureFlag); | |
| glslCaps->fIntegerSupport = true; | |
| // Assume the minimum precisions mandated by the SPIR-V spec. | |
| glslCaps->fShaderPrecisionVaries = true; | |
| for (int s = 0; s < kGrShaderTypeCount; ++s) { | |
| auto& highp = glslCaps->fFloatPrecisions[s][kHigh_GrSLPrecision]; | |
| highp.fLogRangeLow = highp.fLogRangeHigh = 127; | |
| highp.fBits = 23; | |
| auto& mediump = glslCaps->fFloatPrecisions[s][kMedium_GrSLPrecision]; | |
| mediump.fLogRangeLow = mediump.fLogRangeHigh = 14; | |
| mediump.fBits = 10; | |
| glslCaps->fFloatPrecisions[s][kLow_GrSLPrecision] = mediump; | |
| } | |
| glslCaps->initSamplerPrecisionTable(); | |
| glslCaps->fMaxVertexSamplers = | |
| glslCaps->fMaxGeometrySamplers = | |
| glslCaps->fMaxFragmentSamplers = SkTMin(properties.limits.maxPerStageDescriptorSampledImages, | |
| properties.limits.maxPerStageDescriptorSamplers); | |
| glslCaps->fMaxCombinedSamplers = SkTMin(properties.limits.maxDescriptorSetSampledImages, | |
| properties.limits.maxDescriptorSetSamplers); | |
| } | |
| bool stencil_format_supported(const GrVkInterface* interface, | |
| VkPhysicalDevice physDev, | |
| VkFormat format) { | |
| VkFormatProperties props; | |
| memset(&props, 0, sizeof(VkFormatProperties)); | |
| GR_VK_CALL(interface, GetPhysicalDeviceFormatProperties(physDev, format, &props)); | |
| return SkToBool(VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT & props.optimalTilingFeatures); | |
| } | |
| void GrVkCaps::initStencilFormat(const GrVkInterface* interface, VkPhysicalDevice physDev) { | |
| // List of legal stencil formats (though perhaps not supported on | |
| // the particular gpu/driver) from most preferred to least. We are guaranteed to have either | |
| // VK_FORMAT_D24_UNORM_S8_UINT or VK_FORMAT_D32_SFLOAT_S8_UINT. VK_FORMAT_D32_SFLOAT_S8_UINT | |
| // can optionally have 24 unused bits at the end so we assume the total bits is 64. | |
| static const StencilFormat | |
| // internal Format stencil bits total bits packed? | |
| gS8 = { VK_FORMAT_S8_UINT, 8, 8, false }, | |
| gD24S8 = { VK_FORMAT_D24_UNORM_S8_UINT, 8, 32, true }, | |
| gD32S8 = { VK_FORMAT_D32_SFLOAT_S8_UINT, 8, 64, true }; | |
| if (stencil_format_supported(interface, physDev, VK_FORMAT_S8_UINT)) { | |
| fPreferedStencilFormat = gS8; | |
| } else if (stencil_format_supported(interface, physDev, VK_FORMAT_D24_UNORM_S8_UINT)) { | |
| fPreferedStencilFormat = gD24S8; | |
| } else { | |
| SkASSERT(stencil_format_supported(interface, physDev, VK_FORMAT_D32_SFLOAT_S8_UINT)); | |
| fPreferedStencilFormat = gD32S8; | |
| } | |
| } | |
| void GrVkCaps::initConfigTable(const GrVkInterface* interface, VkPhysicalDevice physDev) { | |
| for (int i = 0; i < kGrPixelConfigCnt; ++i) { | |
| VkFormat format; | |
| if (GrPixelConfigToVkFormat(static_cast<GrPixelConfig>(i), &format)) { | |
| fConfigTable[i].init(interface, physDev, format); | |
| } | |
| } | |
| } | |
| void GrVkCaps::ConfigInfo::InitConfigFlags(VkFormatFeatureFlags vkFlags, uint16_t* flags) { | |
| if (SkToBool(VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT & vkFlags) && | |
| SkToBool(VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT & vkFlags)) { | |
| *flags = *flags | kTextureable_Flag; | |
| } | |
| if (SkToBool(VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BLEND_BIT & vkFlags)) { | |
| *flags = *flags | kRenderable_Flag; | |
| } | |
| if (SkToBool(VK_FORMAT_FEATURE_BLIT_SRC_BIT & vkFlags)) { | |
| *flags = *flags | kBlitSrc_Flag; | |
| } | |
| if (SkToBool(VK_FORMAT_FEATURE_BLIT_DST_BIT & vkFlags)) { | |
| *flags = *flags | kBlitDst_Flag; | |
| } | |
| } | |
| void GrVkCaps::ConfigInfo::init(const GrVkInterface* interface, | |
| VkPhysicalDevice physDev, | |
| VkFormat format) { | |
| VkFormatProperties props; | |
| memset(&props, 0, sizeof(VkFormatProperties)); | |
| GR_VK_CALL(interface, GetPhysicalDeviceFormatProperties(physDev, format, &props)); | |
| InitConfigFlags(props.linearTilingFeatures, &fLinearFlags); | |
| InitConfigFlags(props.optimalTilingFeatures, &fOptimalFlags); | |
| } |