| // Copyright 2019 The SwiftShader Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "SpirvShader.hpp" |
| |
| #include "System/Types.hpp" |
| |
| #include "Vulkan/VkDescriptorSetLayout.hpp" |
| #include "Vulkan/VkPipelineLayout.hpp" |
| |
| #include <spirv/unified1/spirv.hpp> |
| |
| namespace { |
| |
| VkFormat SpirvFormatToVulkanFormat(spv::ImageFormat format) |
| { |
| switch(format) |
| { |
| case spv::ImageFormatRgba32f: return VK_FORMAT_R32G32B32A32_SFLOAT; |
| case spv::ImageFormatRgba32i: return VK_FORMAT_R32G32B32A32_SINT; |
| case spv::ImageFormatRgba32ui: return VK_FORMAT_R32G32B32A32_UINT; |
| case spv::ImageFormatR32f: return VK_FORMAT_R32_SFLOAT; |
| case spv::ImageFormatR32i: return VK_FORMAT_R32_SINT; |
| case spv::ImageFormatR32ui: return VK_FORMAT_R32_UINT; |
| case spv::ImageFormatRgba8: return VK_FORMAT_R8G8B8A8_UNORM; |
| case spv::ImageFormatRgba8Snorm: return VK_FORMAT_R8G8B8A8_SNORM; |
| case spv::ImageFormatRgba8i: return VK_FORMAT_R8G8B8A8_SINT; |
| case spv::ImageFormatRgba8ui: return VK_FORMAT_R8G8B8A8_UINT; |
| case spv::ImageFormatRgba16f: return VK_FORMAT_R16G16B16A16_SFLOAT; |
| case spv::ImageFormatRgba16i: return VK_FORMAT_R16G16B16A16_SINT; |
| case spv::ImageFormatRgba16ui: return VK_FORMAT_R16G16B16A16_UINT; |
| case spv::ImageFormatRg32f: return VK_FORMAT_R32G32_SFLOAT; |
| case spv::ImageFormatRg32i: return VK_FORMAT_R32G32_SINT; |
| case spv::ImageFormatRg32ui: return VK_FORMAT_R32G32_UINT; |
| case spv::ImageFormatRg16f: return VK_FORMAT_R16G16_SFLOAT; |
| case spv::ImageFormatRg16i: return VK_FORMAT_R16G16_SINT; |
| case spv::ImageFormatRg16ui: return VK_FORMAT_R16G16_UINT; |
| |
| default: |
| UNSUPPORTED("SPIR-V ImageFormat %u", format); |
| return VK_FORMAT_UNDEFINED; |
| } |
| } |
| |
| sw::SIMD::Float sRGBtoLinear(sw::SIMD::Float c) |
| { |
| sw::SIMD::Float lc = c * sw::SIMD::Float(1.0f / 12.92f); |
| sw::SIMD::Float ec = sw::power((c + sw::SIMD::Float(0.055f)) * sw::SIMD::Float(1.0f / 1.055f), sw::SIMD::Float(2.4f)); |
| |
| sw::SIMD::Int linear = CmpLT(c, sw::SIMD::Float(0.04045f)); |
| |
| return rr::As<sw::SIMD::Float>((linear & rr::As<sw::SIMD::Int>(lc)) | (~linear & rr::As<sw::SIMD::Int>(ec))); // TODO: IfThenElse() |
| } |
| |
| } // anonymous namespace |
| |
| namespace sw { |
| |
| SpirvShader::EmitResult SpirvShader::EmitImageSampleImplicitLod(Variant variant, InsnIterator insn, EmitState *state) const |
| { |
| return EmitImageSample({ variant, Implicit }, insn, state); |
| } |
| |
| SpirvShader::EmitResult SpirvShader::EmitImageGather(Variant variant, InsnIterator insn, EmitState *state) const |
| { |
| ImageInstruction instruction = { variant, Gather }; |
| instruction.gatherComponent = !instruction.isDref() ? getObject(insn.word(5)).constantValue[0] : 0; |
| |
| return EmitImageSample(instruction, insn, state); |
| } |
| |
| SpirvShader::EmitResult SpirvShader::EmitImageSampleExplicitLod(Variant variant, InsnIterator insn, EmitState *state) const |
| { |
| auto isDref = (variant == Dref) || (variant == ProjDref); |
| uint32_t imageOperands = static_cast<spv::ImageOperandsMask>(insn.word(isDref ? 6 : 5)); |
| imageOperands &= ~spv::ImageOperandsConstOffsetMask; // Dealt with later. |
| |
| if((imageOperands & spv::ImageOperandsLodMask) == imageOperands) |
| { |
| return EmitImageSample({ variant, Lod }, insn, state); |
| } |
| else if((imageOperands & spv::ImageOperandsGradMask) == imageOperands) |
| { |
| return EmitImageSample({ variant, Grad }, insn, state); |
| } |
| else |
| UNSUPPORTED("Image Operands %x", imageOperands); |
| |
| return EmitResult::Continue; |
| } |
| |
| SpirvShader::EmitResult SpirvShader::EmitImageFetch(InsnIterator insn, EmitState *state) const |
| { |
| return EmitImageSample({ None, Fetch }, insn, state); |
| } |
| |
| SpirvShader::EmitResult SpirvShader::EmitImageSample(ImageInstruction instruction, InsnIterator insn, EmitState *state) const |
| { |
| Type::ID resultTypeId = insn.word(1); |
| Object::ID resultId = insn.word(2); |
| Object::ID sampledImageId = insn.word(3); // For OpImageFetch this is just an Image, not a SampledImage. |
| Object::ID coordinateId = insn.word(4); |
| auto &resultType = getType(resultTypeId); |
| |
| auto &result = state->createIntermediate(resultId, resultType.sizeInComponents); |
| auto imageDescriptor = state->getPointer(sampledImageId).base; // vk::SampledImageDescriptor* |
| |
| // If using a separate sampler, look through the OpSampledImage instruction to find the sampler descriptor |
| auto &sampledImage = getObject(sampledImageId); |
| auto samplerDescriptor = (sampledImage.opcode() == spv::OpSampledImage) ? state->getPointer(sampledImage.definition.word(4)).base : imageDescriptor; |
| |
| auto coordinate = GenericValue(this, state, coordinateId); |
| auto &coordinateType = getType(coordinate.type); |
| |
| Pointer<Byte> sampler = samplerDescriptor + OFFSET(vk::SampledImageDescriptor, sampler); // vk::Sampler* |
| Pointer<Byte> texture = imageDescriptor + OFFSET(vk::SampledImageDescriptor, texture); // sw::Texture* |
| |
| // Above we assumed that if the SampledImage operand is not the result of an OpSampledImage, |
| // it must be a combined image sampler loaded straight from the descriptor set. For OpImageFetch |
| // it's just an Image operand, so there's no sampler descriptor data. |
| if(getType(sampledImage.type).opcode() != spv::OpTypeSampledImage) |
| { |
| sampler = Pointer<Byte>(nullptr); |
| } |
| |
| uint32_t imageOperands = spv::ImageOperandsMaskNone; |
| bool lodOrBias = false; |
| Object::ID lodOrBiasId = 0; |
| bool grad = false; |
| Object::ID gradDxId = 0; |
| Object::ID gradDyId = 0; |
| bool constOffset = false; |
| Object::ID offsetId = 0; |
| bool sample = false; |
| Object::ID sampleId = 0; |
| |
| uint32_t operand = (instruction.isDref() || instruction.samplerMethod == Gather) ? 6 : 5; |
| |
| if(insn.wordCount() > operand) |
| { |
| imageOperands = static_cast<spv::ImageOperandsMask>(insn.word(operand++)); |
| |
| if(imageOperands & spv::ImageOperandsBiasMask) |
| { |
| lodOrBias = true; |
| lodOrBiasId = insn.word(operand); |
| operand++; |
| imageOperands &= ~spv::ImageOperandsBiasMask; |
| |
| ASSERT(instruction.samplerMethod == Implicit); |
| instruction.samplerMethod = Bias; |
| } |
| |
| if(imageOperands & spv::ImageOperandsLodMask) |
| { |
| lodOrBias = true; |
| lodOrBiasId = insn.word(operand); |
| operand++; |
| imageOperands &= ~spv::ImageOperandsLodMask; |
| } |
| |
| if(imageOperands & spv::ImageOperandsGradMask) |
| { |
| ASSERT(!lodOrBias); // SPIR-V 1.3: "It is invalid to set both the Lod and Grad bits." Bias is for ImplicitLod, Grad for ExplicitLod. |
| grad = true; |
| gradDxId = insn.word(operand + 0); |
| gradDyId = insn.word(operand + 1); |
| operand += 2; |
| imageOperands &= ~spv::ImageOperandsGradMask; |
| } |
| |
| if(imageOperands & spv::ImageOperandsConstOffsetMask) |
| { |
| constOffset = true; |
| offsetId = insn.word(operand); |
| operand++; |
| imageOperands &= ~spv::ImageOperandsConstOffsetMask; |
| } |
| |
| if(imageOperands & spv::ImageOperandsSampleMask) |
| { |
| sample = true; |
| sampleId = insn.word(operand); |
| imageOperands &= ~spv::ImageOperandsSampleMask; |
| |
| ASSERT(instruction.samplerMethod == Fetch); |
| instruction.sample = true; |
| } |
| |
| if(imageOperands != 0) |
| { |
| UNSUPPORTED("Image operand %x", imageOperands); |
| } |
| } |
| |
| Array<SIMD::Float> in(16); // Maximum 16 input parameter components. |
| |
| uint32_t coordinates = coordinateType.sizeInComponents - instruction.isProj(); |
| instruction.coordinates = coordinates; |
| |
| uint32_t i = 0; |
| for(; i < coordinates; i++) |
| { |
| if(instruction.isProj()) |
| { |
| in[i] = coordinate.Float(i) / coordinate.Float(coordinates); // TODO(b/129523279): Optimize using reciprocal. |
| } |
| else |
| { |
| in[i] = coordinate.Float(i); |
| } |
| } |
| |
| if(instruction.isDref()) |
| { |
| auto drefValue = GenericValue(this, state, insn.word(5)); |
| |
| if(instruction.isProj()) |
| { |
| in[i] = drefValue.Float(0) / coordinate.Float(coordinates); // TODO(b/129523279): Optimize using reciprocal. |
| } |
| else |
| { |
| in[i] = drefValue.Float(0); |
| } |
| |
| i++; |
| } |
| |
| if(lodOrBias) |
| { |
| auto lodValue = GenericValue(this, state, lodOrBiasId); |
| in[i] = lodValue.Float(0); |
| i++; |
| } |
| else if(grad) |
| { |
| auto dxValue = GenericValue(this, state, gradDxId); |
| auto dyValue = GenericValue(this, state, gradDyId); |
| auto &dxyType = getType(dxValue.type); |
| ASSERT(dxyType.sizeInComponents == getType(dyValue.type).sizeInComponents); |
| |
| instruction.grad = dxyType.sizeInComponents; |
| |
| for(uint32_t j = 0; j < dxyType.sizeInComponents; j++, i++) |
| { |
| in[i] = dxValue.Float(j); |
| } |
| |
| for(uint32_t j = 0; j < dxyType.sizeInComponents; j++, i++) |
| { |
| in[i] = dyValue.Float(j); |
| } |
| } |
| else if(instruction.samplerMethod == Fetch) |
| { |
| // The instruction didn't provide a lod operand, but the sampler's Fetch |
| // function requires one to be present. If no lod is supplied, the default |
| // is zero. |
| in[i] = As<SIMD::Float>(SIMD::Int(0)); |
| i++; |
| } |
| |
| if(constOffset) |
| { |
| auto offsetValue = GenericValue(this, state, offsetId); |
| auto &offsetType = getType(offsetValue.type); |
| |
| instruction.offset = offsetType.sizeInComponents; |
| |
| for(uint32_t j = 0; j < offsetType.sizeInComponents; j++, i++) |
| { |
| in[i] = As<SIMD::Float>(offsetValue.Int(j)); // Integer values, but transfered as float. |
| } |
| } |
| |
| if(sample) |
| { |
| auto sampleValue = GenericValue(this, state, sampleId); |
| in[i] = As<SIMD::Float>(sampleValue.Int(0)); |
| } |
| |
| auto cacheIt = state->routine->samplerCache.find(resultId); |
| ASSERT(cacheIt != state->routine->samplerCache.end()); |
| auto &cache = cacheIt->second; |
| auto cacheHit = cache.imageDescriptor == imageDescriptor && cache.sampler == sampler; |
| |
| If(!cacheHit) |
| { |
| cache.function = Call(getImageSampler, instruction.parameters, imageDescriptor, sampler); |
| cache.imageDescriptor = imageDescriptor; |
| cache.sampler = sampler; |
| } |
| |
| Array<SIMD::Float> out(4); |
| Call<ImageSampler>(cache.function, texture, sampler, &in[0], &out[0], state->routine->constants); |
| |
| for(auto i = 0u; i < resultType.sizeInComponents; i++) { result.move(i, out[i]); } |
| |
| return EmitResult::Continue; |
| } |
| |
| SpirvShader::EmitResult SpirvShader::EmitImageQuerySizeLod(InsnIterator insn, EmitState *state) const |
| { |
| auto &resultTy = getType(Type::ID(insn.word(1))); |
| auto resultId = Object::ID(insn.word(2)); |
| auto imageId = Object::ID(insn.word(3)); |
| auto lodId = Object::ID(insn.word(4)); |
| |
| auto &dst = state->createIntermediate(resultId, resultTy.sizeInComponents); |
| GetImageDimensions(state, resultTy, imageId, lodId, dst); |
| |
| return EmitResult::Continue; |
| } |
| |
| SpirvShader::EmitResult SpirvShader::EmitImageQuerySize(InsnIterator insn, EmitState *state) const |
| { |
| auto &resultTy = getType(Type::ID(insn.word(1))); |
| auto resultId = Object::ID(insn.word(2)); |
| auto imageId = Object::ID(insn.word(3)); |
| auto lodId = Object::ID(0); |
| |
| auto &dst = state->createIntermediate(resultId, resultTy.sizeInComponents); |
| GetImageDimensions(state, resultTy, imageId, lodId, dst); |
| |
| return EmitResult::Continue; |
| } |
| |
| SpirvShader::EmitResult SpirvShader::EmitImageQueryLod(InsnIterator insn, EmitState *state) const |
| { |
| return EmitImageSample({ None, Query }, insn, state); |
| } |
| |
| void SpirvShader::GetImageDimensions(EmitState const *state, Type const &resultTy, Object::ID imageId, Object::ID lodId, Intermediate &dst) const |
| { |
| auto routine = state->routine; |
| auto &image = getObject(imageId); |
| auto &imageType = getType(image.type); |
| |
| ASSERT(imageType.definition.opcode() == spv::OpTypeImage); |
| bool isArrayed = imageType.definition.word(5) != 0; |
| bool isCubeMap = imageType.definition.word(3) == spv::DimCube; |
| |
| const DescriptorDecorations &d = descriptorDecorations.at(imageId); |
| auto setLayout = routine->pipelineLayout->getDescriptorSetLayout(d.DescriptorSet); |
| auto &bindingLayout = setLayout->getBindingLayout(d.Binding); |
| |
| Pointer<Byte> descriptor = state->getPointer(imageId).base; |
| |
| Pointer<Int> extent; |
| Int arrayLayers; |
| |
| switch(bindingLayout.descriptorType) |
| { |
| case VK_DESCRIPTOR_TYPE_STORAGE_IMAGE: |
| case VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER: |
| { |
| extent = descriptor + OFFSET(vk::StorageImageDescriptor, extent); // int[3]* |
| arrayLayers = *Pointer<Int>(descriptor + OFFSET(vk::StorageImageDescriptor, arrayLayers)); // uint32_t |
| break; |
| } |
| case VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER: |
| case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE: |
| case VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER: |
| { |
| extent = descriptor + OFFSET(vk::SampledImageDescriptor, extent); // int[3]* |
| arrayLayers = *Pointer<Int>(descriptor + OFFSET(vk::SampledImageDescriptor, arrayLayers)); // uint32_t |
| break; |
| } |
| default: |
| UNREACHABLE("Image descriptorType: %d", int(bindingLayout.descriptorType)); |
| } |
| |
| auto dimensions = resultTy.sizeInComponents - (isArrayed ? 1 : 0); |
| std::vector<Int> out; |
| if(lodId != 0) |
| { |
| auto lodVal = GenericValue(this, state, lodId); |
| ASSERT(getType(lodVal.type).sizeInComponents == 1); |
| auto lod = lodVal.Int(0); |
| auto one = SIMD::Int(1); |
| for(uint32_t i = 0; i < dimensions; i++) |
| { |
| dst.move(i, Max(SIMD::Int(extent[i]) >> lod, one)); |
| } |
| } |
| else |
| { |
| for(uint32_t i = 0; i < dimensions; i++) |
| { |
| dst.move(i, SIMD::Int(extent[i])); |
| } |
| } |
| |
| if(isArrayed) |
| { |
| auto numElements = isCubeMap ? (arrayLayers / 6) : RValue<Int>(arrayLayers); |
| dst.move(dimensions, SIMD::Int(numElements)); |
| } |
| } |
| |
| SpirvShader::EmitResult SpirvShader::EmitImageQueryLevels(InsnIterator insn, EmitState *state) const |
| { |
| auto &resultTy = getType(Type::ID(insn.word(1))); |
| ASSERT(resultTy.sizeInComponents == 1); |
| auto resultId = Object::ID(insn.word(2)); |
| auto imageId = Object::ID(insn.word(3)); |
| |
| const DescriptorDecorations &d = descriptorDecorations.at(imageId); |
| auto setLayout = state->routine->pipelineLayout->getDescriptorSetLayout(d.DescriptorSet); |
| auto &bindingLayout = setLayout->getBindingLayout(d.Binding); |
| |
| Pointer<Byte> descriptor = state->getPointer(imageId).base; |
| Int mipLevels = 0; |
| switch(bindingLayout.descriptorType) |
| { |
| case VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER: |
| case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE: |
| case VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER: |
| mipLevels = *Pointer<Int>(descriptor + OFFSET(vk::SampledImageDescriptor, mipLevels)); // uint32_t |
| break; |
| default: |
| UNREACHABLE("Image descriptorType: %d", int(bindingLayout.descriptorType)); |
| } |
| |
| auto &dst = state->createIntermediate(resultId, 1); |
| dst.move(0, SIMD::Int(mipLevels)); |
| |
| return EmitResult::Continue; |
| } |
| |
| SpirvShader::EmitResult SpirvShader::EmitImageQuerySamples(InsnIterator insn, EmitState *state) const |
| { |
| auto &resultTy = getType(Type::ID(insn.word(1))); |
| ASSERT(resultTy.sizeInComponents == 1); |
| auto resultId = Object::ID(insn.word(2)); |
| auto imageId = Object::ID(insn.word(3)); |
| auto imageTy = getType(getObject(imageId).type); |
| ASSERT(imageTy.definition.opcode() == spv::OpTypeImage); |
| ASSERT(imageTy.definition.word(3) == spv::Dim2D); |
| ASSERT(imageTy.definition.word(6 /* MS */) == 1); |
| |
| const DescriptorDecorations &d = descriptorDecorations.at(imageId); |
| auto setLayout = state->routine->pipelineLayout->getDescriptorSetLayout(d.DescriptorSet); |
| auto &bindingLayout = setLayout->getBindingLayout(d.Binding); |
| |
| Pointer<Byte> descriptor = state->getPointer(imageId).base; |
| Int sampleCount = 0; |
| switch(bindingLayout.descriptorType) |
| { |
| case VK_DESCRIPTOR_TYPE_STORAGE_IMAGE: |
| sampleCount = *Pointer<Int>(descriptor + OFFSET(vk::StorageImageDescriptor, sampleCount)); // uint32_t |
| break; |
| case VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER: |
| case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE: |
| case VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER: |
| sampleCount = *Pointer<Int>(descriptor + OFFSET(vk::SampledImageDescriptor, sampleCount)); // uint32_t |
| break; |
| default: |
| UNREACHABLE("Image descriptorType: %d", int(bindingLayout.descriptorType)); |
| } |
| |
| auto &dst = state->createIntermediate(resultId, 1); |
| dst.move(0, SIMD::Int(sampleCount)); |
| |
| return EmitResult::Continue; |
| } |
| |
| SIMD::Pointer SpirvShader::GetTexelAddress(EmitState const *state, SIMD::Pointer ptr, GenericValue const &coordinate, Type const &imageType, Pointer<Byte> descriptor, int texelSize, Object::ID sampleId, bool useStencilAspect) const |
| { |
| auto routine = state->routine; |
| bool isArrayed = imageType.definition.word(5) != 0; |
| auto dim = static_cast<spv::Dim>(imageType.definition.word(3)); |
| int dims = getType(coordinate.type).sizeInComponents - (isArrayed ? 1 : 0); |
| |
| SIMD::Int u = coordinate.Int(0); |
| SIMD::Int v = SIMD::Int(0); |
| |
| if(getType(coordinate.type).sizeInComponents > 1) |
| { |
| v = coordinate.Int(1); |
| } |
| |
| if(dim == spv::DimSubpassData) |
| { |
| u += routine->windowSpacePosition[0]; |
| v += routine->windowSpacePosition[1]; |
| } |
| |
| auto rowPitch = SIMD::Int(*Pointer<Int>(descriptor + (useStencilAspect |
| ? OFFSET(vk::StorageImageDescriptor, stencilRowPitchBytes) |
| : OFFSET(vk::StorageImageDescriptor, rowPitchBytes)))); |
| auto slicePitch = SIMD::Int( |
| *Pointer<Int>(descriptor + (useStencilAspect |
| ? OFFSET(vk::StorageImageDescriptor, stencilSlicePitchBytes) |
| : OFFSET(vk::StorageImageDescriptor, slicePitchBytes)))); |
| auto samplePitch = SIMD::Int( |
| *Pointer<Int>(descriptor + (useStencilAspect |
| ? OFFSET(vk::StorageImageDescriptor, stencilSamplePitchBytes) |
| : OFFSET(vk::StorageImageDescriptor, samplePitchBytes)))); |
| |
| ptr += u * SIMD::Int(texelSize); |
| if(dims > 1) |
| { |
| ptr += v * rowPitch; |
| } |
| if(dims > 2) |
| { |
| ptr += coordinate.Int(2) * slicePitch; |
| } |
| if(isArrayed) |
| { |
| ptr += coordinate.Int(dims) * slicePitch; |
| } |
| |
| if(dim == spv::DimSubpassData) |
| { |
| // Multiview input attachment access is to the layer corresponding to the current view |
| ptr += SIMD::Int(routine->viewID) * slicePitch; |
| } |
| |
| if(sampleId.value()) |
| { |
| GenericValue sample(this, state, sampleId); |
| ptr += sample.Int(0) * samplePitch; |
| } |
| |
| return ptr; |
| } |
| |
| SpirvShader::EmitResult SpirvShader::EmitImageRead(InsnIterator insn, EmitState *state) const |
| { |
| auto &resultType = getType(Type::ID(insn.word(1))); |
| auto imageId = Object::ID(insn.word(3)); |
| auto &image = getObject(imageId); |
| auto &imageType = getType(image.type); |
| Object::ID resultId = insn.word(2); |
| |
| Object::ID sampleId = 0; |
| |
| if(insn.wordCount() > 5) |
| { |
| int operand = 6; |
| auto imageOperands = insn.word(5); |
| if(imageOperands & spv::ImageOperandsSampleMask) |
| { |
| sampleId = insn.word(operand++); |
| imageOperands &= ~spv::ImageOperandsSampleMask; |
| } |
| |
| // Should be no remaining image operands. |
| ASSERT(!imageOperands); |
| } |
| |
| ASSERT(imageType.definition.opcode() == spv::OpTypeImage); |
| auto dim = static_cast<spv::Dim>(imageType.definition.word(3)); |
| |
| auto coordinate = GenericValue(this, state, insn.word(4)); |
| const DescriptorDecorations &d = descriptorDecorations.at(imageId); |
| |
| // For subpass data, format in the instruction is spv::ImageFormatUnknown. Get it from |
| // the renderpass data instead. In all other cases, we can use the format in the instruction. |
| auto vkFormat = (dim == spv::DimSubpassData) |
| ? inputAttachmentFormats[d.InputAttachmentIndex] |
| : SpirvFormatToVulkanFormat(static_cast<spv::ImageFormat>(imageType.definition.word(8))); |
| |
| // Depth+Stencil image attachments select aspect based on the Sampled Type of the |
| // OpTypeImage. If float, then we want the depth aspect. If int, we want the stencil aspect. |
| auto useStencilAspect = (vkFormat == VK_FORMAT_D32_SFLOAT_S8_UINT && |
| getType(imageType.definition.word(2)).opcode() == spv::OpTypeInt); |
| |
| if(useStencilAspect) |
| { |
| vkFormat = VK_FORMAT_S8_UINT; |
| } |
| |
| auto pointer = state->getPointer(imageId); |
| Pointer<Byte> binding = pointer.base; |
| Pointer<Byte> imageBase = *Pointer<Pointer<Byte>>(binding + (useStencilAspect |
| ? OFFSET(vk::StorageImageDescriptor, stencilPtr) |
| : OFFSET(vk::StorageImageDescriptor, ptr))); |
| |
| auto imageSizeInBytes = *Pointer<Int>(binding + OFFSET(vk::StorageImageDescriptor, sizeInBytes)); |
| |
| auto &dst = state->createIntermediate(resultId, resultType.sizeInComponents); |
| |
| auto texelSize = vk::Format(vkFormat).bytes(); |
| auto basePtr = SIMD::Pointer(imageBase, imageSizeInBytes); |
| auto texelPtr = GetTexelAddress(state, basePtr, coordinate, imageType, binding, texelSize, sampleId, useStencilAspect); |
| |
| // "The value returned by a read of an invalid texel is undefined, |
| // unless that read operation is from a buffer resource and the robustBufferAccess feature is enabled." |
| // TODO: Don't always assume a buffer resource. |
| auto robustness = OutOfBoundsBehavior::RobustBufferAccess; |
| |
| SIMD::Int packed[4]; |
| // Round up texel size: for formats smaller than 32 bits per texel, we will emit a bunch |
| // of (overlapping) 32b loads here, and each lane will pick out what it needs from the low bits. |
| // TODO: specialize for small formats? |
| for(auto i = 0; i < (texelSize + 3) / 4; i++) |
| { |
| packed[i] = texelPtr.Load<SIMD::Int>(robustness, state->activeLaneMask(), false, std::memory_order_relaxed, std::min(texelSize, 4)); |
| texelPtr += sizeof(float); |
| } |
| |
| // Format support requirements here come from two sources: |
| // - Minimum required set of formats for loads from storage images |
| // - Any format supported as a color or depth/stencil attachment, for input attachments |
| switch(vkFormat) |
| { |
| case VK_FORMAT_R32G32B32A32_SFLOAT: |
| case VK_FORMAT_R32G32B32A32_SINT: |
| case VK_FORMAT_R32G32B32A32_UINT: |
| dst.move(0, packed[0]); |
| dst.move(1, packed[1]); |
| dst.move(2, packed[2]); |
| dst.move(3, packed[3]); |
| break; |
| case VK_FORMAT_R32_SINT: |
| case VK_FORMAT_R32_UINT: |
| dst.move(0, packed[0]); |
| // Fill remaining channels with 0,0,1 (of the correct type) |
| dst.move(1, SIMD::Int(0)); |
| dst.move(2, SIMD::Int(0)); |
| dst.move(3, SIMD::Int(1)); |
| break; |
| case VK_FORMAT_R32_SFLOAT: |
| case VK_FORMAT_D32_SFLOAT: |
| case VK_FORMAT_D32_SFLOAT_S8_UINT: |
| dst.move(0, packed[0]); |
| // Fill remaining channels with 0,0,1 (of the correct type) |
| dst.move(1, SIMD::Float(0)); |
| dst.move(2, SIMD::Float(0)); |
| dst.move(3, SIMD::Float(1)); |
| break; |
| case VK_FORMAT_D16_UNORM: |
| dst.move(0, SIMD::Float(packed[0] & SIMD::Int(0xffff)) * SIMD::Float(1.0f / 65535.0f)); |
| dst.move(1, SIMD::Float(0)); |
| dst.move(2, SIMD::Float(0)); |
| dst.move(3, SIMD::Float(1)); |
| break; |
| case VK_FORMAT_R16G16B16A16_SINT: |
| dst.move(0, (packed[0] << 16) >> 16); |
| dst.move(1, (packed[0]) >> 16); |
| dst.move(2, (packed[1] << 16) >> 16); |
| dst.move(3, (packed[1]) >> 16); |
| break; |
| case VK_FORMAT_R16G16B16A16_UINT: |
| dst.move(0, packed[0] & SIMD::Int(0xffff)); |
| dst.move(1, (packed[0] >> 16) & SIMD::Int(0xffff)); |
| dst.move(2, packed[1] & SIMD::Int(0xffff)); |
| dst.move(3, (packed[1] >> 16) & SIMD::Int(0xffff)); |
| break; |
| case VK_FORMAT_R16G16B16A16_SFLOAT: |
| dst.move(0, halfToFloatBits(As<SIMD::UInt>(packed[0]) & SIMD::UInt(0x0000FFFF))); |
| dst.move(1, halfToFloatBits((As<SIMD::UInt>(packed[0]) & SIMD::UInt(0xFFFF0000)) >> 16)); |
| dst.move(2, halfToFloatBits(As<SIMD::UInt>(packed[1]) & SIMD::UInt(0x0000FFFF))); |
| dst.move(3, halfToFloatBits((As<SIMD::UInt>(packed[1]) & SIMD::UInt(0xFFFF0000)) >> 16)); |
| break; |
| case VK_FORMAT_R8G8B8A8_SNORM: |
| dst.move(0, Min(Max(SIMD::Float(((packed[0] << 24) & SIMD::Int(0xFF000000))) * SIMD::Float(1.0f / float(0x7f000000)), SIMD::Float(-1.0f)), SIMD::Float(1.0f))); |
| dst.move(1, Min(Max(SIMD::Float(((packed[0] << 16) & SIMD::Int(0xFF000000))) * SIMD::Float(1.0f / float(0x7f000000)), SIMD::Float(-1.0f)), SIMD::Float(1.0f))); |
| dst.move(2, Min(Max(SIMD::Float(((packed[0] << 8) & SIMD::Int(0xFF000000))) * SIMD::Float(1.0f / float(0x7f000000)), SIMD::Float(-1.0f)), SIMD::Float(1.0f))); |
| dst.move(3, Min(Max(SIMD::Float(((packed[0]) & SIMD::Int(0xFF000000))) * SIMD::Float(1.0f / float(0x7f000000)), SIMD::Float(-1.0f)), SIMD::Float(1.0f))); |
| break; |
| case VK_FORMAT_R8G8B8A8_UNORM: |
| case VK_FORMAT_A8B8G8R8_UNORM_PACK32: |
| dst.move(0, SIMD::Float((packed[0] & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f)); |
| dst.move(1, SIMD::Float(((packed[0] >> 8) & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f)); |
| dst.move(2, SIMD::Float(((packed[0] >> 16) & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f)); |
| dst.move(3, SIMD::Float(((packed[0] >> 24) & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f)); |
| break; |
| case VK_FORMAT_R8G8B8A8_SRGB: |
| case VK_FORMAT_A8B8G8R8_SRGB_PACK32: |
| dst.move(0, ::sRGBtoLinear(SIMD::Float((packed[0] & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f))); |
| dst.move(1, ::sRGBtoLinear(SIMD::Float(((packed[0] >> 8) & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f))); |
| dst.move(2, ::sRGBtoLinear(SIMD::Float(((packed[0] >> 16) & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f))); |
| dst.move(3, SIMD::Float(((packed[0] >> 24) & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f)); |
| break; |
| case VK_FORMAT_B8G8R8A8_UNORM: |
| dst.move(0, SIMD::Float(((packed[0] >> 16) & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f)); |
| dst.move(1, SIMD::Float(((packed[0] >> 8) & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f)); |
| dst.move(2, SIMD::Float((packed[0] & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f)); |
| dst.move(3, SIMD::Float(((packed[0] >> 24) & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f)); |
| break; |
| case VK_FORMAT_B8G8R8A8_SRGB: |
| dst.move(0, ::sRGBtoLinear(SIMD::Float(((packed[0] >> 16) & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f))); |
| dst.move(1, ::sRGBtoLinear(SIMD::Float(((packed[0] >> 8) & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f))); |
| dst.move(2, ::sRGBtoLinear(SIMD::Float((packed[0] & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f))); |
| dst.move(3, SIMD::Float(((packed[0] >> 24) & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f)); |
| break; |
| case VK_FORMAT_R8G8B8A8_UINT: |
| case VK_FORMAT_A8B8G8R8_UINT_PACK32: |
| dst.move(0, (As<SIMD::UInt>(packed[0]) & SIMD::UInt(0xFF))); |
| dst.move(1, ((As<SIMD::UInt>(packed[0]) >> 8) & SIMD::UInt(0xFF))); |
| dst.move(2, ((As<SIMD::UInt>(packed[0]) >> 16) & SIMD::UInt(0xFF))); |
| dst.move(3, ((As<SIMD::UInt>(packed[0]) >> 24) & SIMD::UInt(0xFF))); |
| break; |
| case VK_FORMAT_R8G8B8A8_SINT: |
| case VK_FORMAT_A8B8G8R8_SINT_PACK32: |
| dst.move(0, (packed[0] << 24) >> 24); |
| dst.move(1, (packed[0] << 16) >> 24); |
| dst.move(2, (packed[0] << 8) >> 24); |
| dst.move(3, (packed[0]) >> 24); |
| break; |
| case VK_FORMAT_R8_UNORM: |
| dst.move(0, SIMD::Float((packed[0] & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f)); |
| dst.move(1, SIMD::Float(0)); |
| dst.move(2, SIMD::Float(0)); |
| dst.move(3, SIMD::Float(1)); |
| break; |
| case VK_FORMAT_R8_UINT: |
| case VK_FORMAT_S8_UINT: |
| dst.move(0, (As<SIMD::UInt>(packed[0]) & SIMD::UInt(0xFF))); |
| dst.move(1, SIMD::UInt(0)); |
| dst.move(2, SIMD::UInt(0)); |
| dst.move(3, SIMD::UInt(1)); |
| break; |
| case VK_FORMAT_R8_SINT: |
| dst.move(0, (packed[0] << 24) >> 24); |
| dst.move(1, SIMD::Int(0)); |
| dst.move(2, SIMD::Int(0)); |
| dst.move(3, SIMD::Int(1)); |
| break; |
| case VK_FORMAT_R8G8_UNORM: |
| dst.move(0, SIMD::Float((packed[0] & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f)); |
| dst.move(1, SIMD::Float(((packed[0] >> 8) & SIMD::Int(0xFF))) * SIMD::Float(1.0f / 255.f)); |
| dst.move(2, SIMD::Float(0)); |
| dst.move(3, SIMD::Float(1)); |
| break; |
| case VK_FORMAT_R8G8_UINT: |
| dst.move(0, (As<SIMD::UInt>(packed[0]) & SIMD::UInt(0xFF))); |
| dst.move(1, ((As<SIMD::UInt>(packed[0]) >> 8) & SIMD::UInt(0xFF))); |
| dst.move(2, SIMD::UInt(0)); |
| dst.move(3, SIMD::UInt(1)); |
| break; |
| case VK_FORMAT_R8G8_SINT: |
| dst.move(0, (packed[0] << 24) >> 24); |
| dst.move(1, (packed[0] << 16) >> 24); |
| dst.move(2, SIMD::Int(0)); |
| dst.move(3, SIMD::Int(1)); |
| break; |
| case VK_FORMAT_R16_SFLOAT: |
| dst.move(0, halfToFloatBits(As<SIMD::UInt>(packed[0]) & SIMD::UInt(0x0000FFFF))); |
| dst.move(1, SIMD::Float(0)); |
| dst.move(2, SIMD::Float(0)); |
| dst.move(3, SIMD::Float(1)); |
| break; |
| case VK_FORMAT_R16_UINT: |
| dst.move(0, packed[0] & SIMD::Int(0xffff)); |
| dst.move(1, SIMD::UInt(0)); |
| dst.move(2, SIMD::UInt(0)); |
| dst.move(3, SIMD::UInt(1)); |
| break; |
| case VK_FORMAT_R16_SINT: |
| dst.move(0, (packed[0] << 16) >> 16); |
| dst.move(1, SIMD::Int(0)); |
| dst.move(2, SIMD::Int(0)); |
| dst.move(3, SIMD::Int(1)); |
| break; |
| case VK_FORMAT_R16G16_SFLOAT: |
| dst.move(0, halfToFloatBits(As<SIMD::UInt>(packed[0]) & SIMD::UInt(0x0000FFFF))); |
| dst.move(1, halfToFloatBits((As<SIMD::UInt>(packed[0]) & SIMD::UInt(0xFFFF0000)) >> 16)); |
| dst.move(2, SIMD::Float(0)); |
| dst.move(3, SIMD::Float(1)); |
| break; |
| case VK_FORMAT_R16G16_UINT: |
| dst.move(0, packed[0] & SIMD::Int(0xffff)); |
| dst.move(1, (packed[0] >> 16) & SIMD::Int(0xffff)); |
| dst.move(2, SIMD::UInt(0)); |
| dst.move(3, SIMD::UInt(1)); |
| break; |
| case VK_FORMAT_R16G16_SINT: |
| dst.move(0, (packed[0] << 16) >> 16); |
| dst.move(1, (packed[0]) >> 16); |
| dst.move(2, SIMD::Int(0)); |
| dst.move(3, SIMD::Int(1)); |
| break; |
| case VK_FORMAT_R32G32_SINT: |
| case VK_FORMAT_R32G32_UINT: |
| dst.move(0, packed[0]); |
| dst.move(1, packed[1]); |
| dst.move(2, SIMD::Int(0)); |
| dst.move(3, SIMD::Int(1)); |
| break; |
| case VK_FORMAT_R32G32_SFLOAT: |
| dst.move(0, packed[0]); |
| dst.move(1, packed[1]); |
| dst.move(2, SIMD::Float(0)); |
| dst.move(3, SIMD::Float(1)); |
| break; |
| case VK_FORMAT_A2B10G10R10_UINT_PACK32: |
| dst.move(0, (packed[0]) & SIMD::Int(0x3FF)); |
| dst.move(1, (packed[0] >> 10) & SIMD::Int(0x3FF)); |
| dst.move(2, (packed[0] >> 20) & SIMD::Int(0x3FF)); |
| dst.move(3, (packed[0] >> 30) & SIMD::Int(0x3)); |
| break; |
| case VK_FORMAT_A2R10G10B10_UINT_PACK32: |
| dst.move(2, (packed[0]) & SIMD::Int(0x3FF)); |
| dst.move(1, (packed[0] >> 10) & SIMD::Int(0x3FF)); |
| dst.move(0, (packed[0] >> 20) & SIMD::Int(0x3FF)); |
| dst.move(3, (packed[0] >> 30) & SIMD::Int(0x3)); |
| break; |
| case VK_FORMAT_A2B10G10R10_UNORM_PACK32: |
| dst.move(0, SIMD::Float((packed[0]) & SIMD::Int(0x3FF)) * SIMD::Float(1.0f / 0x3FF)); |
| dst.move(1, SIMD::Float((packed[0] >> 10) & SIMD::Int(0x3FF)) * SIMD::Float(1.0f / 0x3FF)); |
| dst.move(2, SIMD::Float((packed[0] >> 20) & SIMD::Int(0x3FF)) * SIMD::Float(1.0f / 0x3FF)); |
| dst.move(3, SIMD::Float((packed[0] >> 30) & SIMD::Int(0x3)) * SIMD::Float(1.0f / 0x3)); |
| break; |
| case VK_FORMAT_A2R10G10B10_UNORM_PACK32: |
| dst.move(2, SIMD::Float((packed[0]) & SIMD::Int(0x3FF)) * SIMD::Float(1.0f / 0x3FF)); |
| dst.move(1, SIMD::Float((packed[0] >> 10) & SIMD::Int(0x3FF)) * SIMD::Float(1.0f / 0x3FF)); |
| dst.move(0, SIMD::Float((packed[0] >> 20) & SIMD::Int(0x3FF)) * SIMD::Float(1.0f / 0x3FF)); |
| dst.move(3, SIMD::Float((packed[0] >> 30) & SIMD::Int(0x3)) * SIMD::Float(1.0f / 0x3)); |
| break; |
| case VK_FORMAT_R5G6B5_UNORM_PACK16: |
| dst.move(0, SIMD::Float((packed[0] >> 11) & SIMD::Int(0x1F)) * SIMD::Float(1.0f / 0x1F)); |
| dst.move(1, SIMD::Float((packed[0] >> 5) & SIMD::Int(0x3F)) * SIMD::Float(1.0f / 0x3F)); |
| dst.move(2, SIMD::Float((packed[0]) & SIMD::Int(0x1F)) * SIMD::Float(1.0f / 0x1F)); |
| dst.move(3, SIMD::Float(1)); |
| break; |
| case VK_FORMAT_A1R5G5B5_UNORM_PACK16: |
| dst.move(0, SIMD::Float((packed[0] >> 10) & SIMD::Int(0x1F)) * SIMD::Float(1.0f / 0x1F)); |
| dst.move(1, SIMD::Float((packed[0] >> 5) & SIMD::Int(0x1F)) * SIMD::Float(1.0f / 0x1F)); |
| dst.move(2, SIMD::Float((packed[0]) & SIMD::Int(0x1F)) * SIMD::Float(1.0f / 0x1F)); |
| dst.move(3, SIMD::Float((packed[0] >> 15) & SIMD::Int(0x1))); |
| break; |
| default: |
| UNSUPPORTED("VkFormat %d", int(vkFormat)); |
| break; |
| } |
| |
| return EmitResult::Continue; |
| } |
| |
| SpirvShader::EmitResult SpirvShader::EmitImageWrite(InsnIterator insn, EmitState *state) const |
| { |
| auto imageId = Object::ID(insn.word(1)); |
| auto &image = getObject(imageId); |
| auto &imageType = getType(image.type); |
| |
| ASSERT(imageType.definition.opcode() == spv::OpTypeImage); |
| |
| // TODO(b/131171141): Not handling any image operands yet. |
| ASSERT(insn.wordCount() == 4); |
| |
| auto coordinate = GenericValue(this, state, insn.word(2)); |
| auto texel = GenericValue(this, state, insn.word(3)); |
| |
| Pointer<Byte> binding = state->getPointer(imageId).base; |
| Pointer<Byte> imageBase = *Pointer<Pointer<Byte>>(binding + OFFSET(vk::StorageImageDescriptor, ptr)); |
| auto imageSizeInBytes = *Pointer<Int>(binding + OFFSET(vk::StorageImageDescriptor, sizeInBytes)); |
| |
| SIMD::Int packed[4]; |
| auto numPackedElements = 0u; |
| int texelSize = 0; |
| auto format = static_cast<spv::ImageFormat>(imageType.definition.word(8)); |
| switch(format) |
| { |
| case spv::ImageFormatRgba32f: |
| case spv::ImageFormatRgba32i: |
| case spv::ImageFormatRgba32ui: |
| texelSize = 16; |
| packed[0] = texel.Int(0); |
| packed[1] = texel.Int(1); |
| packed[2] = texel.Int(2); |
| packed[3] = texel.Int(3); |
| numPackedElements = 4; |
| break; |
| case spv::ImageFormatR32f: |
| case spv::ImageFormatR32i: |
| case spv::ImageFormatR32ui: |
| texelSize = 4; |
| packed[0] = texel.Int(0); |
| numPackedElements = 1; |
| break; |
| case spv::ImageFormatRgba8: |
| texelSize = 4; |
| packed[0] = (SIMD::UInt(Round(Min(Max(texel.Float(0), SIMD::Float(0.0f)), SIMD::Float(1.0f)) * SIMD::Float(255.0f)))) | |
| ((SIMD::UInt(Round(Min(Max(texel.Float(1), SIMD::Float(0.0f)), SIMD::Float(1.0f)) * SIMD::Float(255.0f)))) << 8) | |
| ((SIMD::UInt(Round(Min(Max(texel.Float(2), SIMD::Float(0.0f)), SIMD::Float(1.0f)) * SIMD::Float(255.0f)))) << 16) | |
| ((SIMD::UInt(Round(Min(Max(texel.Float(3), SIMD::Float(0.0f)), SIMD::Float(1.0f)) * SIMD::Float(255.0f)))) << 24); |
| numPackedElements = 1; |
| break; |
| case spv::ImageFormatRgba8Snorm: |
| texelSize = 4; |
| packed[0] = (SIMD::Int(Round(Min(Max(texel.Float(0), SIMD::Float(-1.0f)), SIMD::Float(1.0f)) * SIMD::Float(127.0f))) & |
| SIMD::Int(0xFF)) | |
| ((SIMD::Int(Round(Min(Max(texel.Float(1), SIMD::Float(-1.0f)), SIMD::Float(1.0f)) * SIMD::Float(127.0f))) & |
| SIMD::Int(0xFF)) |
| << 8) | |
| ((SIMD::Int(Round(Min(Max(texel.Float(2), SIMD::Float(-1.0f)), SIMD::Float(1.0f)) * SIMD::Float(127.0f))) & |
| SIMD::Int(0xFF)) |
| << 16) | |
| ((SIMD::Int(Round(Min(Max(texel.Float(3), SIMD::Float(-1.0f)), SIMD::Float(1.0f)) * SIMD::Float(127.0f))) & |
| SIMD::Int(0xFF)) |
| << 24); |
| numPackedElements = 1; |
| break; |
| case spv::ImageFormatRgba8i: |
| case spv::ImageFormatRgba8ui: |
| texelSize = 4; |
| packed[0] = (SIMD::UInt(texel.UInt(0) & SIMD::UInt(0xff))) | |
| (SIMD::UInt(texel.UInt(1) & SIMD::UInt(0xff)) << 8) | |
| (SIMD::UInt(texel.UInt(2) & SIMD::UInt(0xff)) << 16) | |
| (SIMD::UInt(texel.UInt(3) & SIMD::UInt(0xff)) << 24); |
| numPackedElements = 1; |
| break; |
| case spv::ImageFormatRgba16f: |
| texelSize = 8; |
| packed[0] = floatToHalfBits(texel.UInt(0), false) | floatToHalfBits(texel.UInt(1), true); |
| packed[1] = floatToHalfBits(texel.UInt(2), false) | floatToHalfBits(texel.UInt(3), true); |
| numPackedElements = 2; |
| break; |
| case spv::ImageFormatRgba16i: |
| case spv::ImageFormatRgba16ui: |
| texelSize = 8; |
| packed[0] = SIMD::UInt(texel.UInt(0) & SIMD::UInt(0xffff)) | (SIMD::UInt(texel.UInt(1) & SIMD::UInt(0xffff)) << 16); |
| packed[1] = SIMD::UInt(texel.UInt(2) & SIMD::UInt(0xffff)) | (SIMD::UInt(texel.UInt(3) & SIMD::UInt(0xffff)) << 16); |
| numPackedElements = 2; |
| break; |
| case spv::ImageFormatRg32f: |
| case spv::ImageFormatRg32i: |
| case spv::ImageFormatRg32ui: |
| texelSize = 8; |
| packed[0] = texel.Int(0); |
| packed[1] = texel.Int(1); |
| numPackedElements = 2; |
| break; |
| case spv::ImageFormatRg16f: |
| texelSize = 4; |
| packed[0] = floatToHalfBits(texel.UInt(0), false) | floatToHalfBits(texel.UInt(1), true); |
| numPackedElements = 1; |
| break; |
| case spv::ImageFormatRg16i: |
| case spv::ImageFormatRg16ui: |
| texelSize = 4; |
| packed[0] = SIMD::UInt(texel.UInt(0) & SIMD::UInt(0xffff)) | (SIMD::UInt(texel.UInt(1) & SIMD::UInt(0xffff)) << 16); |
| numPackedElements = 1; |
| break; |
| |
| case spv::ImageFormatR11fG11fB10f: |
| case spv::ImageFormatR16f: |
| case spv::ImageFormatRgba16: |
| case spv::ImageFormatRgb10A2: |
| case spv::ImageFormatRg16: |
| case spv::ImageFormatRg8: |
| case spv::ImageFormatR16: |
| case spv::ImageFormatR8: |
| case spv::ImageFormatRgba16Snorm: |
| case spv::ImageFormatRg16Snorm: |
| case spv::ImageFormatRg8Snorm: |
| case spv::ImageFormatR16Snorm: |
| case spv::ImageFormatR8Snorm: |
| case spv::ImageFormatRg8i: |
| case spv::ImageFormatR16i: |
| case spv::ImageFormatR8i: |
| case spv::ImageFormatRgb10a2ui: |
| case spv::ImageFormatRg8ui: |
| case spv::ImageFormatR16ui: |
| case spv::ImageFormatR8ui: |
| UNSUPPORTED("spv::ImageFormat %d", int(format)); |
| break; |
| |
| default: |
| UNREACHABLE("spv::ImageFormat %d", int(format)); |
| break; |
| } |
| |
| auto basePtr = SIMD::Pointer(imageBase, imageSizeInBytes); |
| auto texelPtr = GetTexelAddress(state, basePtr, coordinate, imageType, binding, texelSize, 0, false); |
| |
| // SPIR-V 1.4: "If the coordinates are outside the image, the memory location that is accessed is undefined." |
| auto robustness = OutOfBoundsBehavior::UndefinedValue; |
| |
| for(auto i = 0u; i < numPackedElements; i++) |
| { |
| texelPtr.Store(packed[i], robustness, state->activeLaneMask()); |
| texelPtr += sizeof(float); |
| } |
| |
| return EmitResult::Continue; |
| } |
| |
| SpirvShader::EmitResult SpirvShader::EmitImageTexelPointer(InsnIterator insn, EmitState *state) const |
| { |
| auto &resultType = getType(Type::ID(insn.word(1))); |
| auto imageId = Object::ID(insn.word(3)); |
| auto &image = getObject(imageId); |
| // Note: OpImageTexelPointer is unusual in that the image is passed by pointer. |
| // Look through to get the actual image type. |
| auto &imageType = getType(getType(image.type).element); |
| Object::ID resultId = insn.word(2); |
| |
| ASSERT(imageType.opcode() == spv::OpTypeImage); |
| ASSERT(resultType.storageClass == spv::StorageClassImage); |
| ASSERT(getType(resultType.element).opcode() == spv::OpTypeInt); |
| |
| auto coordinate = GenericValue(this, state, insn.word(4)); |
| |
| Pointer<Byte> binding = state->getPointer(imageId).base; |
| Pointer<Byte> imageBase = *Pointer<Pointer<Byte>>(binding + OFFSET(vk::StorageImageDescriptor, ptr)); |
| auto imageSizeInBytes = *Pointer<Int>(binding + OFFSET(vk::StorageImageDescriptor, sizeInBytes)); |
| |
| auto basePtr = SIMD::Pointer(imageBase, imageSizeInBytes); |
| auto ptr = GetTexelAddress(state, basePtr, coordinate, imageType, binding, sizeof(uint32_t), 0, false); |
| |
| state->createPointer(resultId, ptr); |
| |
| return EmitResult::Continue; |
| } |
| |
| SpirvShader::EmitResult SpirvShader::EmitSampledImageCombineOrSplit(InsnIterator insn, EmitState *state) const |
| { |
| // Propagate the image pointer in both cases. |
| // Consumers of OpSampledImage will look through to find the sampler pointer. |
| |
| Object::ID resultId = insn.word(2); |
| Object::ID imageId = insn.word(3); |
| |
| state->createPointer(resultId, state->getPointer(imageId)); |
| |
| return EmitResult::Continue; |
| } |
| |
| } // namespace sw |