| // |
| // Copyright 2018 The ANGLE Project Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // |
| // vk_utils: |
| // Helper functions for the Vulkan Caps. |
| // |
| |
| #include "libANGLE/renderer/vulkan/vk_caps_utils.h" |
| |
| #include <type_traits> |
| |
| #include "common/utilities.h" |
| #include "libANGLE/Caps.h" |
| #include "libANGLE/formatutils.h" |
| #include "libANGLE/renderer/vulkan/DisplayVk.h" |
| #include "libANGLE/renderer/vulkan/RendererVk.h" |
| #include "vk_format_utils.h" |
| |
| namespace |
| { |
| constexpr unsigned int kComponentsPerVector = 4; |
| } // anonymous namespace |
| |
| namespace rx |
| { |
| |
| GLint LimitToInt(const uint32_t physicalDeviceValue) |
| { |
| return std::min(physicalDeviceValue, |
| static_cast<uint32_t>(std::numeric_limits<int32_t>::max())); |
| } |
| |
| void RendererVk::ensureCapsInitialized() const |
| { |
| if (mCapsInitialized) |
| return; |
| mCapsInitialized = true; |
| |
| ASSERT(mCurrentQueueFamilyIndex < mQueueFamilyProperties.size()); |
| const VkQueueFamilyProperties &queueFamilyProperties = |
| mQueueFamilyProperties[mCurrentQueueFamilyIndex]; |
| const VkPhysicalDeviceLimits &limitsVk = mPhysicalDeviceProperties.limits; |
| |
| mNativeExtensions.setTextureExtensionSupport(mNativeTextureCaps); |
| |
| // Vulkan technically only supports the LDR profile but driver all appear to support the HDR |
| // profile as well. http://anglebug.com/1185#c8 |
| mNativeExtensions.textureCompressionASTCHDRKHR = mNativeExtensions.textureCompressionASTCLDRKHR; |
| |
| // Enable this for simple buffer readback testing, but some functionality is missing. |
| // TODO(jmadill): Support full mapBufferRange extension. |
| mNativeExtensions.mapBuffer = true; |
| mNativeExtensions.mapBufferRange = true; |
| mNativeExtensions.textureStorage = true; |
| mNativeExtensions.drawBuffers = true; |
| mNativeExtensions.fragDepth = true; |
| mNativeExtensions.framebufferBlit = true; |
| mNativeExtensions.framebufferMultisample = true; |
| mNativeExtensions.copyTexture = true; |
| mNativeExtensions.copyCompressedTexture = true; |
| mNativeExtensions.debugMarker = true; |
| mNativeExtensions.robustness = true; |
| mNativeExtensions.textureBorderClamp = false; // not implemented yet |
| mNativeExtensions.translatedShaderSource = true; |
| mNativeExtensions.discardFramebuffer = true; |
| |
| // Enable EXT_texture_type_2_10_10_10_REV |
| mNativeExtensions.textureFormat2101010REV = true; |
| |
| // Enable ANGLE_base_vertex_base_instance |
| mNativeExtensions.baseVertexBaseInstance = true; |
| |
| // Enable OES/EXT_draw_elements_base_vertex |
| mNativeExtensions.drawElementsBaseVertexOES = true; |
| mNativeExtensions.drawElementsBaseVertexEXT = true; |
| |
| // Enable EXT_blend_minmax |
| mNativeExtensions.blendMinMax = true; |
| |
| mNativeExtensions.eglImage = true; |
| mNativeExtensions.eglImageExternal = true; |
| mNativeExtensions.eglImageExternalEssl3 = true; |
| |
| mNativeExtensions.memoryObject = true; |
| mNativeExtensions.memoryObjectFd = getFeatures().supportsExternalMemoryFd.enabled; |
| |
| mNativeExtensions.semaphore = true; |
| mNativeExtensions.semaphoreFd = getFeatures().supportsExternalSemaphoreFd.enabled; |
| |
| mNativeExtensions.vertexHalfFloat = true; |
| |
| // Enabled in HW if VK_EXT_vertex_attribute_divisor available, otherwise emulated |
| mNativeExtensions.instancedArraysANGLE = true; |
| mNativeExtensions.instancedArraysEXT = true; |
| |
| // Only expose robust buffer access if the physical device supports it. |
| mNativeExtensions.robustBufferAccessBehavior = |
| (mPhysicalDeviceFeatures.robustBufferAccess == VK_TRUE); |
| |
| mNativeExtensions.eglSync = true; |
| |
| mNativeExtensions.vertexAttribType1010102 = true; |
| |
| // We use secondary command buffers almost everywhere and they require a feature to be |
| // able to execute in the presence of queries. As a result, we won't support queries |
| // unless that feature is available. |
| mNativeExtensions.occlusionQueryBoolean = |
| vk::CommandBuffer::SupportsQueries(mPhysicalDeviceFeatures); |
| |
| // From the Vulkan specs: |
| // > The number of valid bits in a timestamp value is determined by the |
| // > VkQueueFamilyProperties::timestampValidBits property of the queue on which the timestamp is |
| // > written. Timestamps are supported on any queue which reports a non-zero value for |
| // > timestampValidBits via vkGetPhysicalDeviceQueueFamilyProperties. |
| mNativeExtensions.disjointTimerQuery = queueFamilyProperties.timestampValidBits > 0; |
| mNativeExtensions.queryCounterBitsTimeElapsed = queueFamilyProperties.timestampValidBits; |
| mNativeExtensions.queryCounterBitsTimestamp = queueFamilyProperties.timestampValidBits; |
| |
| mNativeExtensions.textureFilterAnisotropic = |
| mPhysicalDeviceFeatures.samplerAnisotropy && limitsVk.maxSamplerAnisotropy > 1.0f; |
| mNativeExtensions.maxTextureAnisotropy = |
| mNativeExtensions.textureFilterAnisotropic ? limitsVk.maxSamplerAnisotropy : 0.0f; |
| |
| // Vulkan natively supports non power-of-two textures |
| mNativeExtensions.textureNPOT = true; |
| |
| mNativeExtensions.texture3DOES = true; |
| |
| // Vulkan natively supports standard derivatives |
| mNativeExtensions.standardDerivatives = true; |
| |
| // Vulkan natively supports 32-bit indices, entry in kIndexTypeMap |
| mNativeExtensions.elementIndexUint = true; |
| |
| mNativeExtensions.fboRenderMipmap = true; |
| |
| // We support getting image data for Textures and Renderbuffers. |
| mNativeExtensions.getImageANGLE = true; |
| |
| // https://vulkan.lunarg.com/doc/view/1.0.30.0/linux/vkspec.chunked/ch31s02.html |
| mNativeCaps.maxElementIndex = std::numeric_limits<GLuint>::max() - 1; |
| mNativeCaps.max3DTextureSize = LimitToInt(limitsVk.maxImageDimension3D); |
| mNativeCaps.max2DTextureSize = |
| std::min(limitsVk.maxFramebufferWidth, limitsVk.maxImageDimension2D); |
| mNativeCaps.maxArrayTextureLayers = LimitToInt(limitsVk.maxImageArrayLayers); |
| mNativeCaps.maxLODBias = limitsVk.maxSamplerLodBias; |
| mNativeCaps.maxCubeMapTextureSize = LimitToInt(limitsVk.maxImageDimensionCube); |
| mNativeCaps.maxRenderbufferSize = |
| std::min({limitsVk.maxImageDimension2D, limitsVk.maxFramebufferWidth, |
| limitsVk.maxFramebufferHeight}); |
| mNativeCaps.minAliasedPointSize = std::max(1.0f, limitsVk.pointSizeRange[0]); |
| mNativeCaps.maxAliasedPointSize = limitsVk.pointSizeRange[1]; |
| |
| mNativeCaps.minAliasedLineWidth = 1.0f; |
| mNativeCaps.maxAliasedLineWidth = 1.0f; |
| |
| mNativeCaps.maxDrawBuffers = |
| std::min(limitsVk.maxColorAttachments, limitsVk.maxFragmentOutputAttachments); |
| mNativeCaps.maxFramebufferWidth = LimitToInt(limitsVk.maxFramebufferWidth); |
| mNativeCaps.maxFramebufferHeight = LimitToInt(limitsVk.maxFramebufferHeight); |
| mNativeCaps.maxColorAttachments = LimitToInt(limitsVk.maxColorAttachments); |
| mNativeCaps.maxViewportWidth = LimitToInt(limitsVk.maxViewportDimensions[0]); |
| mNativeCaps.maxViewportHeight = LimitToInt(limitsVk.maxViewportDimensions[1]); |
| mNativeCaps.maxSampleMaskWords = LimitToInt(limitsVk.maxSampleMaskWords); |
| mNativeCaps.maxColorTextureSamples = limitsVk.sampledImageColorSampleCounts; |
| mNativeCaps.maxDepthTextureSamples = limitsVk.sampledImageDepthSampleCounts; |
| mNativeCaps.maxIntegerSamples = limitsVk.sampledImageIntegerSampleCounts; |
| |
| mNativeCaps.maxVertexAttributes = LimitToInt(limitsVk.maxVertexInputAttributes); |
| mNativeCaps.maxVertexAttribBindings = LimitToInt(limitsVk.maxVertexInputBindings); |
| // Offset and stride are stored as uint16_t in PackedAttribDesc. |
| mNativeCaps.maxVertexAttribRelativeOffset = |
| std::min(static_cast<uint32_t>(std::numeric_limits<uint16_t>::max()), |
| limitsVk.maxVertexInputAttributeOffset); |
| mNativeCaps.maxVertexAttribStride = |
| std::min(static_cast<uint32_t>(std::numeric_limits<uint16_t>::max()), |
| limitsVk.maxVertexInputBindingStride); |
| |
| mNativeCaps.maxElementsIndices = std::numeric_limits<GLint>::max(); |
| mNativeCaps.maxElementsVertices = std::numeric_limits<GLint>::max(); |
| |
| // Looks like all floats are IEEE according to the docs here: |
| // https://www.khronos.org/registry/vulkan/specs/1.0-wsi_extensions/html/vkspec.html#spirvenv-precision-operation |
| mNativeCaps.vertexHighpFloat.setIEEEFloat(); |
| mNativeCaps.vertexMediumpFloat.setIEEEFloat(); |
| mNativeCaps.vertexLowpFloat.setIEEEFloat(); |
| mNativeCaps.fragmentHighpFloat.setIEEEFloat(); |
| mNativeCaps.fragmentMediumpFloat.setIEEEFloat(); |
| mNativeCaps.fragmentLowpFloat.setIEEEFloat(); |
| |
| // Can't find documentation on the int precision in Vulkan. |
| mNativeCaps.vertexHighpInt.setTwosComplementInt(32); |
| mNativeCaps.vertexMediumpInt.setTwosComplementInt(32); |
| mNativeCaps.vertexLowpInt.setTwosComplementInt(32); |
| mNativeCaps.fragmentHighpInt.setTwosComplementInt(32); |
| mNativeCaps.fragmentMediumpInt.setTwosComplementInt(32); |
| mNativeCaps.fragmentLowpInt.setTwosComplementInt(32); |
| |
| // Compute shader limits. |
| mNativeCaps.maxComputeWorkGroupCount[0] = LimitToInt(limitsVk.maxComputeWorkGroupCount[0]); |
| mNativeCaps.maxComputeWorkGroupCount[1] = LimitToInt(limitsVk.maxComputeWorkGroupCount[1]); |
| mNativeCaps.maxComputeWorkGroupCount[2] = LimitToInt(limitsVk.maxComputeWorkGroupCount[2]); |
| mNativeCaps.maxComputeWorkGroupSize[0] = LimitToInt(limitsVk.maxComputeWorkGroupSize[0]); |
| mNativeCaps.maxComputeWorkGroupSize[1] = LimitToInt(limitsVk.maxComputeWorkGroupSize[1]); |
| mNativeCaps.maxComputeWorkGroupSize[2] = LimitToInt(limitsVk.maxComputeWorkGroupSize[2]); |
| mNativeCaps.maxComputeWorkGroupInvocations = |
| LimitToInt(limitsVk.maxComputeWorkGroupInvocations); |
| mNativeCaps.maxComputeSharedMemorySize = LimitToInt(limitsVk.maxComputeSharedMemorySize); |
| |
| // TODO(lucferron): This is something we'll need to implement custom in the back-end. |
| // Vulkan doesn't do any waiting for you, our back-end code is going to manage sync objects, |
| // and we'll have to check that we've exceeded the max wait timeout. Also, this is ES 3.0 so |
| // we'll defer the implementation until we tackle the next version. |
| // mNativeCaps.maxServerWaitTimeout |
| |
| GLuint maxUniformBlockSize = limitsVk.maxUniformBufferRange; |
| |
| // Clamp the maxUniformBlockSize to 64KB (majority of devices support up to this size |
| // currently), on AMD the maxUniformBufferRange is near uint32_t max. |
| maxUniformBlockSize = std::min(0x10000u, maxUniformBlockSize); |
| |
| const GLuint maxUniformVectors = maxUniformBlockSize / (sizeof(GLfloat) * kComponentsPerVector); |
| const GLuint maxUniformComponents = maxUniformVectors * kComponentsPerVector; |
| |
| // Uniforms are implemented using a uniform buffer, so the max number of uniforms we can |
| // support is the max buffer range divided by the size of a single uniform (4X float). |
| mNativeCaps.maxVertexUniformVectors = maxUniformVectors; |
| mNativeCaps.maxFragmentUniformVectors = maxUniformVectors; |
| mNativeCaps.maxFragmentInputComponents = maxUniformComponents; |
| for (gl::ShaderType shaderType : gl::AllShaderTypes()) |
| { |
| mNativeCaps.maxShaderUniformComponents[shaderType] = maxUniformComponents; |
| } |
| mNativeCaps.maxUniformLocations = maxUniformVectors; |
| |
| // Every stage has 1 reserved uniform buffer for the default uniforms, and 1 for the driver |
| // uniforms. |
| constexpr uint32_t kTotalReservedPerStageUniformBuffers = |
| kReservedDriverUniformBindingCount + kReservedPerStageDefaultUniformBindingCount; |
| constexpr uint32_t kTotalReservedUniformBuffers = |
| kReservedDriverUniformBindingCount + kReservedDefaultUniformBindingCount; |
| |
| const int32_t maxPerStageUniformBuffers = LimitToInt( |
| limitsVk.maxPerStageDescriptorUniformBuffers - kTotalReservedPerStageUniformBuffers); |
| const int32_t maxCombinedUniformBuffers = |
| LimitToInt(limitsVk.maxDescriptorSetUniformBuffers - kTotalReservedUniformBuffers); |
| for (gl::ShaderType shaderType : gl::AllShaderTypes()) |
| { |
| mNativeCaps.maxShaderUniformBlocks[shaderType] = maxPerStageUniformBuffers; |
| } |
| mNativeCaps.maxCombinedUniformBlocks = maxCombinedUniformBuffers; |
| |
| mNativeCaps.maxUniformBufferBindings = maxCombinedUniformBuffers; |
| mNativeCaps.maxUniformBlockSize = maxUniformBlockSize; |
| mNativeCaps.uniformBufferOffsetAlignment = |
| static_cast<GLint>(limitsVk.minUniformBufferOffsetAlignment); |
| |
| // Note that Vulkan currently implements textures as combined image+samplers, so the limit is |
| // the minimum of supported samplers and sampled images. |
| const uint32_t maxPerStageTextures = std::min(limitsVk.maxPerStageDescriptorSamplers, |
| limitsVk.maxPerStageDescriptorSampledImages); |
| const uint32_t maxCombinedTextures = |
| std::min(limitsVk.maxDescriptorSetSamplers, limitsVk.maxDescriptorSetSampledImages); |
| for (gl::ShaderType shaderType : gl::AllShaderTypes()) |
| { |
| mNativeCaps.maxShaderTextureImageUnits[shaderType] = LimitToInt(maxPerStageTextures); |
| } |
| mNativeCaps.maxCombinedTextureImageUnits = LimitToInt(maxCombinedTextures); |
| |
| uint32_t maxPerStageStorageBuffers = limitsVk.maxPerStageDescriptorStorageBuffers; |
| uint32_t maxVertexStageStorageBuffers = maxPerStageStorageBuffers; |
| uint32_t maxCombinedStorageBuffers = limitsVk.maxDescriptorSetStorageBuffers; |
| |
| // A number of storage buffer slots are used in the vertex shader to emulate transform feedback. |
| // Note that Vulkan requires maxPerStageDescriptorStorageBuffers to be at least 4 (i.e. the same |
| // as gl::IMPLEMENTATION_MAX_TRANSFORM_FEEDBACK_BUFFERS). |
| // TODO(syoussefi): This should be conditioned to transform feedback extension not being |
| // present. http://anglebug.com/3206. |
| // TODO(syoussefi): If geometry shader is supported, emulation will be done at that stage, and |
| // so the reserved storage buffers should be accounted in that stage. http://anglebug.com/3606 |
| static_assert( |
| gl::IMPLEMENTATION_MAX_TRANSFORM_FEEDBACK_BUFFERS == 4, |
| "Limit to ES2.0 if supported SSBO count < supporting transform feedback buffer count"); |
| if (mPhysicalDeviceFeatures.vertexPipelineStoresAndAtomics) |
| { |
| ASSERT(maxVertexStageStorageBuffers >= gl::IMPLEMENTATION_MAX_TRANSFORM_FEEDBACK_BUFFERS); |
| maxVertexStageStorageBuffers -= gl::IMPLEMENTATION_MAX_TRANSFORM_FEEDBACK_BUFFERS; |
| maxCombinedStorageBuffers -= gl::IMPLEMENTATION_MAX_TRANSFORM_FEEDBACK_BUFFERS; |
| |
| // Cap the per-stage limit of the other stages to the combined limit, in case the combined |
| // limit is now lower than that. |
| maxPerStageStorageBuffers = std::min(maxPerStageStorageBuffers, maxCombinedStorageBuffers); |
| } |
| |
| // Reserve up to IMPLEMENTATION_MAX_ATOMIC_COUNTER_BUFFERS storage buffers in the fragment and |
| // compute stages for atomic counters. This is only possible if the number of per-stage storage |
| // buffers is greater than 4, which is the required GLES minimum for compute. |
| // |
| // For each stage, we'll either not support atomic counter buffers, or support exactly |
| // IMPLEMENTATION_MAX_ATOMIC_COUNTER_BUFFERS. This is due to restrictions in the shader |
| // translator where we can't know how many atomic counter buffers we would really need after |
| // linking so we can't create a packed buffer array. |
| // |
| // For the vertex stage, we could support atomic counters without storage buffers, but that's |
| // likely not very useful, so we use the same limit (4 + MAX_ATOMIC_COUNTER_BUFFERS) for the |
| // vertex stage to determine if we would want to add support for atomic counter buffers. |
| constexpr uint32_t kMinimumStorageBuffersForAtomicCounterBufferSupport = |
| gl::limits::kMinimumComputeStorageBuffers + gl::IMPLEMENTATION_MAX_ATOMIC_COUNTER_BUFFERS; |
| uint32_t maxVertexStageAtomicCounterBuffers = 0; |
| uint32_t maxPerStageAtomicCounterBuffers = 0; |
| uint32_t maxCombinedAtomicCounterBuffers = 0; |
| |
| if (maxPerStageStorageBuffers >= kMinimumStorageBuffersForAtomicCounterBufferSupport) |
| { |
| maxPerStageAtomicCounterBuffers = gl::IMPLEMENTATION_MAX_ATOMIC_COUNTER_BUFFERS; |
| maxCombinedAtomicCounterBuffers = gl::IMPLEMENTATION_MAX_ATOMIC_COUNTER_BUFFERS; |
| } |
| |
| if (maxVertexStageStorageBuffers >= kMinimumStorageBuffersForAtomicCounterBufferSupport) |
| { |
| maxVertexStageAtomicCounterBuffers = gl::IMPLEMENTATION_MAX_ATOMIC_COUNTER_BUFFERS; |
| } |
| |
| maxVertexStageStorageBuffers -= maxVertexStageAtomicCounterBuffers; |
| maxPerStageStorageBuffers -= maxPerStageAtomicCounterBuffers; |
| maxCombinedStorageBuffers -= maxCombinedAtomicCounterBuffers; |
| |
| mNativeCaps.maxShaderStorageBlocks[gl::ShaderType::Vertex] = |
| mPhysicalDeviceFeatures.vertexPipelineStoresAndAtomics |
| ? LimitToInt(maxVertexStageStorageBuffers) |
| : 0; |
| mNativeCaps.maxShaderStorageBlocks[gl::ShaderType::Fragment] = |
| mPhysicalDeviceFeatures.fragmentStoresAndAtomics ? LimitToInt(maxPerStageStorageBuffers) |
| : 0; |
| mNativeCaps.maxShaderStorageBlocks[gl::ShaderType::Compute] = |
| LimitToInt(maxPerStageStorageBuffers); |
| mNativeCaps.maxCombinedShaderStorageBlocks = LimitToInt(maxCombinedStorageBuffers); |
| |
| mNativeCaps.maxShaderStorageBufferBindings = LimitToInt(maxCombinedStorageBuffers); |
| mNativeCaps.maxShaderStorageBlockSize = limitsVk.maxStorageBufferRange; |
| mNativeCaps.shaderStorageBufferOffsetAlignment = |
| LimitToInt(static_cast<uint32_t>(limitsVk.minStorageBufferOffsetAlignment)); |
| |
| mNativeCaps.maxShaderAtomicCounterBuffers[gl::ShaderType::Vertex] = |
| mPhysicalDeviceFeatures.vertexPipelineStoresAndAtomics |
| ? LimitToInt(maxVertexStageAtomicCounterBuffers) |
| : 0; |
| mNativeCaps.maxShaderAtomicCounterBuffers[gl::ShaderType::Fragment] = |
| mPhysicalDeviceFeatures.fragmentStoresAndAtomics |
| ? LimitToInt(maxPerStageAtomicCounterBuffers) |
| : 0; |
| mNativeCaps.maxShaderAtomicCounterBuffers[gl::ShaderType::Compute] = |
| LimitToInt(maxPerStageAtomicCounterBuffers); |
| mNativeCaps.maxCombinedAtomicCounterBuffers = LimitToInt(maxCombinedAtomicCounterBuffers); |
| |
| mNativeCaps.maxAtomicCounterBufferBindings = LimitToInt(maxCombinedAtomicCounterBuffers); |
| // Emulated as storage buffers, atomic counter buffers have the same size limit. However, the |
| // limit is a signed integer and values above int max will end up as a negative size. |
| mNativeCaps.maxAtomicCounterBufferSize = LimitToInt(limitsVk.maxStorageBufferRange); |
| |
| // There is no particular limit to how many atomic counters there can be, other than the size of |
| // a storage buffer. We nevertheless limit this to something sane (4096 arbitrarily). |
| const int32_t maxAtomicCounters = |
| std::min<int32_t>(4096, limitsVk.maxStorageBufferRange / sizeof(uint32_t)); |
| for (gl::ShaderType shaderType : gl::AllShaderTypes()) |
| { |
| mNativeCaps.maxShaderAtomicCounters[shaderType] = maxAtomicCounters; |
| } |
| mNativeCaps.maxCombinedAtomicCounters = maxAtomicCounters; |
| |
| // GL Images correspond to Vulkan Storage Images. |
| const int32_t maxPerStageImages = LimitToInt(limitsVk.maxPerStageDescriptorStorageImages); |
| const int32_t maxCombinedImages = LimitToInt(limitsVk.maxDescriptorSetStorageImages); |
| for (gl::ShaderType shaderType : gl::AllShaderTypes()) |
| { |
| mNativeCaps.maxShaderImageUniforms[shaderType] = maxPerStageImages; |
| } |
| mNativeCaps.maxCombinedImageUniforms = maxCombinedImages; |
| mNativeCaps.maxImageUnits = maxCombinedImages; |
| |
| mNativeCaps.minProgramTexelOffset = limitsVk.minTexelOffset; |
| mNativeCaps.maxProgramTexelOffset = limitsVk.maxTexelOffset; |
| mNativeCaps.minProgramTextureGatherOffset = limitsVk.minTexelGatherOffset; |
| mNativeCaps.maxProgramTextureGatherOffset = limitsVk.maxTexelGatherOffset; |
| |
| // There is no additional limit to the combined number of components. We can have up to a |
| // maximum number of uniform buffers, each having the maximum number of components. Note that |
| // this limit includes both components in and out of uniform buffers. |
| const uint32_t maxCombinedUniformComponents = |
| (maxPerStageUniformBuffers + kReservedPerStageDefaultUniformBindingCount) * |
| maxUniformComponents; |
| for (gl::ShaderType shaderType : gl::AllShaderTypes()) |
| { |
| mNativeCaps.maxCombinedShaderUniformComponents[shaderType] = maxCombinedUniformComponents; |
| } |
| |
| // Total number of resources available to the user are as many as Vulkan allows minus everything |
| // that ANGLE uses internally. That is, one dynamic uniform buffer used per stage for default |
| // uniforms and a single dynamic uniform buffer for driver uniforms. Additionally, Vulkan uses |
| // up to IMPLEMENTATION_MAX_TRANSFORM_FEEDBACK_BUFFERS + 1 buffers for transform feedback (Note: |
| // +1 is for the "counter" buffer of transform feedback, which will be necessary for transform |
| // feedback extension and ES3.2 transform feedback emulation, but is not yet present). |
| constexpr uint32_t kReservedPerStageUniformBufferCount = 1; |
| constexpr uint32_t kReservedPerStageBindingCount = |
| kReservedDriverUniformBindingCount + kReservedPerStageUniformBufferCount + |
| gl::IMPLEMENTATION_MAX_TRANSFORM_FEEDBACK_BUFFERS + 1; |
| |
| // Note: maxPerStageResources is required to be at least the sum of per stage UBOs, SSBOs etc |
| // which total a minimum of 44 resources, so no underflow is possible here. Limit the total |
| // number of resources reported by Vulkan to 2 billion though to avoid seeing negative numbers |
| // in applications that take the value as signed int (including dEQP). |
| const uint32_t maxPerStageResources = limitsVk.maxPerStageResources; |
| mNativeCaps.maxCombinedShaderOutputResources = |
| LimitToInt(maxPerStageResources - kReservedPerStageBindingCount); |
| |
| // The max vertex output components should not include gl_Position. |
| // The gles2.0 section 2.10 states that "gl_Position is not a varying variable and does |
| // not count against this limit.", but the Vulkan spec has no such mention in its Built-in |
| // vars section. It is implicit that we need to actually reserve it for Vulkan in that case. |
| // |
| // Note: AMD has a weird behavior when we edge toward the maximum number of varyings and can |
| // often crash. Reserving an additional varying just for them bringing the total to 2. |
| constexpr GLint kReservedVaryingCount = 2; |
| mNativeCaps.maxVaryingVectors = |
| LimitToInt((limitsVk.maxVertexOutputComponents / 4) - kReservedVaryingCount); |
| mNativeCaps.maxVertexOutputComponents = |
| LimitToInt(static_cast<uint32_t>(mNativeCaps.maxVaryingVectors * 4)); |
| |
| mNativeCaps.maxTransformFeedbackInterleavedComponents = |
| gl::IMPLEMENTATION_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS; |
| mNativeCaps.maxTransformFeedbackSeparateAttributes = |
| gl::IMPLEMENTATION_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS; |
| mNativeCaps.maxTransformFeedbackSeparateComponents = |
| gl::IMPLEMENTATION_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS; |
| |
| mNativeCaps.minProgramTexelOffset = limitsVk.minTexelOffset; |
| mNativeCaps.maxProgramTexelOffset = LimitToInt(limitsVk.maxTexelOffset); |
| |
| const uint32_t sampleCounts = limitsVk.framebufferColorSampleCounts & |
| limitsVk.framebufferDepthSampleCounts & |
| limitsVk.framebufferStencilSampleCounts; |
| |
| mNativeCaps.maxSamples = LimitToInt(vk_gl::GetMaxSampleCount(sampleCounts)); |
| mNativeCaps.maxFramebufferSamples = mNativeCaps.maxSamples; |
| |
| mNativeCaps.subPixelBits = limitsVk.subPixelPrecisionBits; |
| |
| // Enable Program Binary extension. |
| mNativeExtensions.getProgramBinary = true; |
| mNativeCaps.programBinaryFormats.push_back(GL_PROGRAM_BINARY_ANGLE); |
| |
| // Enable GL_NV_pixel_buffer_object extension. |
| mNativeExtensions.pixelBufferObject = true; |
| |
| // Geometry shader is optional. |
| if (mPhysicalDeviceFeatures.geometryShader) |
| { |
| // TODO : Remove below comment when http://anglebug.com/3571 will be completed |
| // mNativeExtensions.geometryShader = true; |
| mNativeCaps.maxFramebufferLayers = LimitToInt(limitsVk.maxFramebufferLayers); |
| mNativeCaps.layerProvokingVertex = GL_LAST_VERTEX_CONVENTION_EXT; |
| |
| mNativeCaps.maxGeometryInputComponents = LimitToInt(limitsVk.maxGeometryInputComponents); |
| mNativeCaps.maxGeometryOutputComponents = LimitToInt(limitsVk.maxGeometryOutputComponents); |
| mNativeCaps.maxGeometryOutputVertices = LimitToInt(limitsVk.maxGeometryOutputVertices); |
| mNativeCaps.maxGeometryTotalOutputComponents = |
| LimitToInt(limitsVk.maxGeometryTotalOutputComponents); |
| mNativeCaps.maxShaderStorageBlocks[gl::ShaderType::Geometry] = |
| mNativeCaps.maxCombinedShaderOutputResources; |
| mNativeCaps.maxShaderAtomicCounterBuffers[gl::ShaderType::Geometry] = |
| maxCombinedAtomicCounterBuffers; |
| mNativeCaps.maxGeometryShaderInvocations = |
| LimitToInt(limitsVk.maxGeometryShaderInvocations); |
| } |
| } |
| |
| namespace egl_vk |
| { |
| |
| namespace |
| { |
| |
| EGLint ComputeMaximumPBufferPixels(const VkPhysicalDeviceProperties &physicalDeviceProperties) |
| { |
| // EGLints are signed 32-bit integers, it's fairly easy to overflow them, especially since |
| // Vulkan's minimum guaranteed VkImageFormatProperties::maxResourceSize is 2^31 bytes. |
| constexpr uint64_t kMaxValueForEGLint = |
| static_cast<uint64_t>(std::numeric_limits<EGLint>::max()); |
| |
| // TODO(geofflang): Compute the maximum size of a pbuffer by using the maxResourceSize result |
| // from vkGetPhysicalDeviceImageFormatProperties for both the color and depth stencil format and |
| // the exact image creation parameters that would be used to create the pbuffer. Because it is |
| // always safe to return out-of-memory errors on pbuffer allocation, it's fine to simply return |
| // the number of pixels in a max width by max height pbuffer for now. http://anglebug.com/2622 |
| |
| // Storing the result of squaring a 32-bit unsigned int in a 64-bit unsigned int is safe. |
| static_assert(std::is_same<decltype(physicalDeviceProperties.limits.maxImageDimension2D), |
| uint32_t>::value, |
| "physicalDeviceProperties.limits.maxImageDimension2D expected to be a uint32_t."); |
| const uint64_t maxDimensionsSquared = |
| static_cast<uint64_t>(physicalDeviceProperties.limits.maxImageDimension2D) * |
| static_cast<uint64_t>(physicalDeviceProperties.limits.maxImageDimension2D); |
| |
| return static_cast<EGLint>(std::min(maxDimensionsSquared, kMaxValueForEGLint)); |
| } |
| |
| // Generates a basic config for a combination of color format, depth stencil format and sample |
| // count. |
| egl::Config GenerateDefaultConfig(const RendererVk *renderer, |
| const gl::InternalFormat &colorFormat, |
| const gl::InternalFormat &depthStencilFormat, |
| EGLint sampleCount) |
| { |
| const VkPhysicalDeviceProperties &physicalDeviceProperties = |
| renderer->getPhysicalDeviceProperties(); |
| gl::Version maxSupportedESVersion = renderer->getMaxSupportedESVersion(); |
| |
| EGLint es2Support = (maxSupportedESVersion.major >= 2 ? EGL_OPENGL_ES2_BIT : 0); |
| EGLint es3Support = (maxSupportedESVersion.major >= 3 ? EGL_OPENGL_ES3_BIT : 0); |
| |
| egl::Config config; |
| |
| config.renderTargetFormat = colorFormat.internalFormat; |
| config.depthStencilFormat = depthStencilFormat.internalFormat; |
| config.bufferSize = colorFormat.pixelBytes * 8; |
| config.redSize = colorFormat.redBits; |
| config.greenSize = colorFormat.greenBits; |
| config.blueSize = colorFormat.blueBits; |
| config.alphaSize = colorFormat.alphaBits; |
| config.alphaMaskSize = 0; |
| config.bindToTextureRGB = colorFormat.format == GL_RGB; |
| config.bindToTextureRGBA = colorFormat.format == GL_RGBA || colorFormat.format == GL_BGRA_EXT; |
| config.colorBufferType = EGL_RGB_BUFFER; |
| config.configCaveat = EGL_NONE; |
| config.conformant = es2Support | es3Support; |
| config.depthSize = depthStencilFormat.depthBits; |
| config.stencilSize = depthStencilFormat.stencilBits; |
| config.level = 0; |
| config.matchNativePixmap = EGL_NONE; |
| config.maxPBufferWidth = physicalDeviceProperties.limits.maxImageDimension2D; |
| config.maxPBufferHeight = physicalDeviceProperties.limits.maxImageDimension2D; |
| config.maxPBufferPixels = ComputeMaximumPBufferPixels(physicalDeviceProperties); |
| config.maxSwapInterval = 1; |
| config.minSwapInterval = 0; |
| config.nativeRenderable = EGL_TRUE; |
| config.nativeVisualID = 0; |
| config.nativeVisualType = EGL_NONE; |
| config.renderableType = es2Support | es3Support; |
| config.sampleBuffers = (sampleCount > 0) ? 1 : 0; |
| config.samples = sampleCount; |
| config.surfaceType = EGL_WINDOW_BIT | EGL_PBUFFER_BIT; |
| // Vulkan surfaces use a different origin than OpenGL, always prefer to be flipped vertically if |
| // possible. |
| config.optimalOrientation = EGL_SURFACE_ORIENTATION_INVERT_Y_ANGLE; |
| config.transparentType = EGL_NONE; |
| config.transparentRedValue = 0; |
| config.transparentGreenValue = 0; |
| config.transparentBlueValue = 0; |
| config.colorComponentType = |
| gl_egl::GLComponentTypeToEGLColorComponentType(colorFormat.componentType); |
| |
| return config; |
| } |
| |
| } // anonymous namespace |
| |
| egl::ConfigSet GenerateConfigs(const GLenum *colorFormats, |
| size_t colorFormatsCount, |
| const GLenum *depthStencilFormats, |
| size_t depthStencilFormatCount, |
| DisplayVk *display) |
| { |
| ASSERT(colorFormatsCount > 0); |
| ASSERT(display != nullptr); |
| |
| gl::SupportedSampleSet colorSampleCounts; |
| gl::SupportedSampleSet depthStencilSampleCounts; |
| gl::SupportedSampleSet sampleCounts; |
| |
| const VkPhysicalDeviceLimits &limits = |
| display->getRenderer()->getPhysicalDeviceProperties().limits; |
| const uint32_t depthStencilSampleCountsLimit = |
| limits.framebufferDepthSampleCounts & limits.framebufferStencilSampleCounts; |
| |
| vk_gl::AddSampleCounts(limits.framebufferColorSampleCounts, &colorSampleCounts); |
| vk_gl::AddSampleCounts(depthStencilSampleCountsLimit, &depthStencilSampleCounts); |
| |
| // Always support 0 samples |
| colorSampleCounts.insert(0); |
| depthStencilSampleCounts.insert(0); |
| |
| std::set_intersection(colorSampleCounts.begin(), colorSampleCounts.end(), |
| depthStencilSampleCounts.begin(), depthStencilSampleCounts.end(), |
| std::inserter(sampleCounts, sampleCounts.begin())); |
| |
| egl::ConfigSet configSet; |
| |
| for (size_t colorFormatIdx = 0; colorFormatIdx < colorFormatsCount; colorFormatIdx++) |
| { |
| const gl::InternalFormat &colorFormatInfo = |
| gl::GetSizedInternalFormatInfo(colorFormats[colorFormatIdx]); |
| ASSERT(colorFormatInfo.sized); |
| |
| for (size_t depthStencilFormatIdx = 0; depthStencilFormatIdx < depthStencilFormatCount; |
| depthStencilFormatIdx++) |
| { |
| const gl::InternalFormat &depthStencilFormatInfo = |
| gl::GetSizedInternalFormatInfo(depthStencilFormats[depthStencilFormatIdx]); |
| ASSERT(depthStencilFormats[depthStencilFormatIdx] == GL_NONE || |
| depthStencilFormatInfo.sized); |
| |
| const gl::SupportedSampleSet *configSampleCounts = &sampleCounts; |
| // If there is no depth/stencil buffer, use the color samples set. |
| if (depthStencilFormats[depthStencilFormatIdx] == GL_NONE) |
| { |
| configSampleCounts = &colorSampleCounts; |
| } |
| // If there is no color buffer, use the depth/stencil samples set. |
| else if (colorFormats[colorFormatIdx] == GL_NONE) |
| { |
| configSampleCounts = &depthStencilSampleCounts; |
| } |
| |
| for (EGLint sampleCount : *configSampleCounts) |
| { |
| egl::Config config = GenerateDefaultConfig(display->getRenderer(), colorFormatInfo, |
| depthStencilFormatInfo, sampleCount); |
| if (display->checkConfigSupport(&config)) |
| { |
| configSet.add(config); |
| } |
| } |
| } |
| } |
| |
| return configSet; |
| } |
| |
| } // namespace egl_vk |
| |
| } // namespace rx |
