5548 lines
162 KiB
C++
5548 lines
162 KiB
C++
/*
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* Copyright 2016-2020 Robert Konrad
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "spirv_hlsl.hpp"
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#include "GLSL.std.450.h"
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#include <algorithm>
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#include <assert.h>
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using namespace spv;
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using namespace SPIRV_CROSS_NAMESPACE;
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using namespace std;
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enum class ImageFormatNormalizedState
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{
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None = 0,
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Unorm = 1,
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Snorm = 2
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};
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static ImageFormatNormalizedState image_format_to_normalized_state(ImageFormat fmt)
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{
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switch (fmt)
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{
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case ImageFormatR8:
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case ImageFormatR16:
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case ImageFormatRg8:
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case ImageFormatRg16:
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case ImageFormatRgba8:
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case ImageFormatRgba16:
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case ImageFormatRgb10A2:
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return ImageFormatNormalizedState::Unorm;
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case ImageFormatR8Snorm:
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case ImageFormatR16Snorm:
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case ImageFormatRg8Snorm:
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case ImageFormatRg16Snorm:
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case ImageFormatRgba8Snorm:
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case ImageFormatRgba16Snorm:
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return ImageFormatNormalizedState::Snorm;
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default:
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break;
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}
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return ImageFormatNormalizedState::None;
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}
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static unsigned image_format_to_components(ImageFormat fmt)
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{
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switch (fmt)
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{
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case ImageFormatR8:
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case ImageFormatR16:
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case ImageFormatR8Snorm:
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case ImageFormatR16Snorm:
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case ImageFormatR16f:
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case ImageFormatR32f:
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case ImageFormatR8i:
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case ImageFormatR16i:
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case ImageFormatR32i:
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case ImageFormatR8ui:
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case ImageFormatR16ui:
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case ImageFormatR32ui:
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return 1;
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case ImageFormatRg8:
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case ImageFormatRg16:
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case ImageFormatRg8Snorm:
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case ImageFormatRg16Snorm:
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case ImageFormatRg16f:
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case ImageFormatRg32f:
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case ImageFormatRg8i:
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case ImageFormatRg16i:
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case ImageFormatRg32i:
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case ImageFormatRg8ui:
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case ImageFormatRg16ui:
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case ImageFormatRg32ui:
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return 2;
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case ImageFormatR11fG11fB10f:
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return 3;
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case ImageFormatRgba8:
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case ImageFormatRgba16:
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case ImageFormatRgb10A2:
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case ImageFormatRgba8Snorm:
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case ImageFormatRgba16Snorm:
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case ImageFormatRgba16f:
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case ImageFormatRgba32f:
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case ImageFormatRgba8i:
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case ImageFormatRgba16i:
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case ImageFormatRgba32i:
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case ImageFormatRgba8ui:
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case ImageFormatRgba16ui:
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case ImageFormatRgba32ui:
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case ImageFormatRgb10a2ui:
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return 4;
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case ImageFormatUnknown:
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return 4; // Assume 4.
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default:
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SPIRV_CROSS_THROW("Unrecognized typed image format.");
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}
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}
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static string image_format_to_type(ImageFormat fmt, SPIRType::BaseType basetype)
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{
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switch (fmt)
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{
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case ImageFormatR8:
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case ImageFormatR16:
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if (basetype != SPIRType::Float)
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SPIRV_CROSS_THROW("Mismatch in image type and base type of image.");
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return "unorm float";
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case ImageFormatRg8:
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case ImageFormatRg16:
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if (basetype != SPIRType::Float)
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SPIRV_CROSS_THROW("Mismatch in image type and base type of image.");
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return "unorm float2";
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case ImageFormatRgba8:
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case ImageFormatRgba16:
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if (basetype != SPIRType::Float)
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SPIRV_CROSS_THROW("Mismatch in image type and base type of image.");
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return "unorm float4";
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case ImageFormatRgb10A2:
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if (basetype != SPIRType::Float)
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SPIRV_CROSS_THROW("Mismatch in image type and base type of image.");
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return "unorm float4";
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case ImageFormatR8Snorm:
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case ImageFormatR16Snorm:
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if (basetype != SPIRType::Float)
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SPIRV_CROSS_THROW("Mismatch in image type and base type of image.");
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return "snorm float";
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case ImageFormatRg8Snorm:
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case ImageFormatRg16Snorm:
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if (basetype != SPIRType::Float)
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SPIRV_CROSS_THROW("Mismatch in image type and base type of image.");
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return "snorm float2";
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case ImageFormatRgba8Snorm:
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case ImageFormatRgba16Snorm:
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if (basetype != SPIRType::Float)
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SPIRV_CROSS_THROW("Mismatch in image type and base type of image.");
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return "snorm float4";
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case ImageFormatR16f:
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case ImageFormatR32f:
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if (basetype != SPIRType::Float)
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SPIRV_CROSS_THROW("Mismatch in image type and base type of image.");
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return "float";
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case ImageFormatRg16f:
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case ImageFormatRg32f:
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if (basetype != SPIRType::Float)
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SPIRV_CROSS_THROW("Mismatch in image type and base type of image.");
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return "float2";
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case ImageFormatRgba16f:
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case ImageFormatRgba32f:
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if (basetype != SPIRType::Float)
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SPIRV_CROSS_THROW("Mismatch in image type and base type of image.");
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return "float4";
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case ImageFormatR11fG11fB10f:
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if (basetype != SPIRType::Float)
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SPIRV_CROSS_THROW("Mismatch in image type and base type of image.");
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return "float3";
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case ImageFormatR8i:
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case ImageFormatR16i:
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case ImageFormatR32i:
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if (basetype != SPIRType::Int)
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SPIRV_CROSS_THROW("Mismatch in image type and base type of image.");
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return "int";
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case ImageFormatRg8i:
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case ImageFormatRg16i:
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case ImageFormatRg32i:
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if (basetype != SPIRType::Int)
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SPIRV_CROSS_THROW("Mismatch in image type and base type of image.");
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return "int2";
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case ImageFormatRgba8i:
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case ImageFormatRgba16i:
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case ImageFormatRgba32i:
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if (basetype != SPIRType::Int)
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SPIRV_CROSS_THROW("Mismatch in image type and base type of image.");
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return "int4";
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case ImageFormatR8ui:
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case ImageFormatR16ui:
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case ImageFormatR32ui:
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if (basetype != SPIRType::UInt)
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SPIRV_CROSS_THROW("Mismatch in image type and base type of image.");
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return "uint";
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case ImageFormatRg8ui:
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case ImageFormatRg16ui:
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case ImageFormatRg32ui:
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if (basetype != SPIRType::UInt)
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SPIRV_CROSS_THROW("Mismatch in image type and base type of image.");
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return "uint2";
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case ImageFormatRgba8ui:
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case ImageFormatRgba16ui:
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case ImageFormatRgba32ui:
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if (basetype != SPIRType::UInt)
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SPIRV_CROSS_THROW("Mismatch in image type and base type of image.");
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return "uint4";
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case ImageFormatRgb10a2ui:
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if (basetype != SPIRType::UInt)
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SPIRV_CROSS_THROW("Mismatch in image type and base type of image.");
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return "uint4";
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case ImageFormatUnknown:
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switch (basetype)
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{
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case SPIRType::Float:
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return "float4";
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case SPIRType::Int:
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return "int4";
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case SPIRType::UInt:
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return "uint4";
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default:
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SPIRV_CROSS_THROW("Unsupported base type for image.");
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}
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default:
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SPIRV_CROSS_THROW("Unrecognized typed image format.");
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}
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}
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string CompilerHLSL::image_type_hlsl_modern(const SPIRType &type, uint32_t id)
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{
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auto &imagetype = get<SPIRType>(type.image.type);
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const char *dim = nullptr;
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bool typed_load = false;
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uint32_t components = 4;
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bool force_image_srv = hlsl_options.nonwritable_uav_texture_as_srv && has_decoration(id, DecorationNonWritable);
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switch (type.image.dim)
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{
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case Dim1D:
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typed_load = type.image.sampled == 2;
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dim = "1D";
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break;
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case Dim2D:
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typed_load = type.image.sampled == 2;
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dim = "2D";
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break;
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case Dim3D:
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typed_load = type.image.sampled == 2;
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dim = "3D";
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break;
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case DimCube:
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if (type.image.sampled == 2)
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SPIRV_CROSS_THROW("RWTextureCube does not exist in HLSL.");
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dim = "Cube";
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break;
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case DimRect:
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SPIRV_CROSS_THROW("Rectangle texture support is not yet implemented for HLSL."); // TODO
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case DimBuffer:
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if (type.image.sampled == 1)
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return join("Buffer<", type_to_glsl(imagetype), components, ">");
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else if (type.image.sampled == 2)
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{
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if (interlocked_resources.count(id))
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return join("RasterizerOrderedBuffer<", image_format_to_type(type.image.format, imagetype.basetype),
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">");
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typed_load = !force_image_srv && type.image.sampled == 2;
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const char *rw = force_image_srv ? "" : "RW";
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return join(rw, "Buffer<",
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typed_load ? image_format_to_type(type.image.format, imagetype.basetype) :
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join(type_to_glsl(imagetype), components),
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">");
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}
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else
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SPIRV_CROSS_THROW("Sampler buffers must be either sampled or unsampled. Cannot deduce in runtime.");
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case DimSubpassData:
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dim = "2D";
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typed_load = false;
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break;
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default:
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SPIRV_CROSS_THROW("Invalid dimension.");
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}
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const char *arrayed = type.image.arrayed ? "Array" : "";
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const char *ms = type.image.ms ? "MS" : "";
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const char *rw = typed_load && !force_image_srv ? "RW" : "";
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if (force_image_srv)
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typed_load = false;
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if (typed_load && interlocked_resources.count(id))
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rw = "RasterizerOrdered";
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return join(rw, "Texture", dim, ms, arrayed, "<",
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typed_load ? image_format_to_type(type.image.format, imagetype.basetype) :
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join(type_to_glsl(imagetype), components),
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">");
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}
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string CompilerHLSL::image_type_hlsl_legacy(const SPIRType &type, uint32_t id)
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{
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auto &imagetype = get<SPIRType>(type.image.type);
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string res;
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switch (imagetype.basetype)
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{
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case SPIRType::Int:
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res = "i";
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break;
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case SPIRType::UInt:
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res = "u";
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break;
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default:
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break;
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}
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if (type.basetype == SPIRType::Image && type.image.dim == DimSubpassData)
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return res + "subpassInput" + (type.image.ms ? "MS" : "");
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// If we're emulating subpassInput with samplers, force sampler2D
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// so we don't have to specify format.
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if (type.basetype == SPIRType::Image && type.image.dim != DimSubpassData)
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{
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// Sampler buffers are always declared as samplerBuffer even though they might be separate images in the SPIR-V.
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if (type.image.dim == DimBuffer && type.image.sampled == 1)
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res += "sampler";
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else
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res += type.image.sampled == 2 ? "image" : "texture";
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}
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else
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res += "sampler";
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switch (type.image.dim)
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{
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case Dim1D:
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res += "1D";
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break;
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case Dim2D:
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res += "2D";
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break;
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case Dim3D:
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res += "3D";
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break;
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case DimCube:
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res += "CUBE";
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break;
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case DimBuffer:
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res += "Buffer";
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break;
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case DimSubpassData:
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res += "2D";
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break;
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default:
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SPIRV_CROSS_THROW("Only 1D, 2D, 3D, Buffer, InputTarget and Cube textures supported.");
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}
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if (type.image.ms)
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res += "MS";
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if (type.image.arrayed)
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res += "Array";
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if (image_is_comparison(type, id))
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res += "Shadow";
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return res;
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}
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string CompilerHLSL::image_type_hlsl(const SPIRType &type, uint32_t id)
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{
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if (hlsl_options.shader_model <= 30)
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return image_type_hlsl_legacy(type, id);
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else
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return image_type_hlsl_modern(type, id);
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}
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// The optional id parameter indicates the object whose type we are trying
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// to find the description for. It is optional. Most type descriptions do not
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// depend on a specific object's use of that type.
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string CompilerHLSL::type_to_glsl(const SPIRType &type, uint32_t id)
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{
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// Ignore the pointer type since GLSL doesn't have pointers.
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switch (type.basetype)
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{
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case SPIRType::Struct:
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// Need OpName lookup here to get a "sensible" name for a struct.
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if (backend.explicit_struct_type)
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return join("struct ", to_name(type.self));
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else
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return to_name(type.self);
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case SPIRType::Image:
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case SPIRType::SampledImage:
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return image_type_hlsl(type, id);
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case SPIRType::Sampler:
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return comparison_ids.count(id) ? "SamplerComparisonState" : "SamplerState";
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case SPIRType::Void:
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return "void";
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default:
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break;
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}
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if (type.vecsize == 1 && type.columns == 1) // Scalar builtin
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{
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switch (type.basetype)
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{
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case SPIRType::Boolean:
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return "bool";
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case SPIRType::Int:
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return backend.basic_int_type;
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case SPIRType::UInt:
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return backend.basic_uint_type;
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case SPIRType::AtomicCounter:
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return "atomic_uint";
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case SPIRType::Half:
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return "min16float";
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case SPIRType::Float:
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return "float";
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case SPIRType::Double:
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return "double";
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case SPIRType::Int64:
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if (hlsl_options.shader_model < 60)
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SPIRV_CROSS_THROW("64-bit integers only supported in SM 6.0.");
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return "int64_t";
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case SPIRType::UInt64:
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if (hlsl_options.shader_model < 60)
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SPIRV_CROSS_THROW("64-bit integers only supported in SM 6.0.");
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return "uint64_t";
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default:
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return "???";
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}
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}
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else if (type.vecsize > 1 && type.columns == 1) // Vector builtin
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{
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switch (type.basetype)
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{
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case SPIRType::Boolean:
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return join("bool", type.vecsize);
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case SPIRType::Int:
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return join("int", type.vecsize);
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case SPIRType::UInt:
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return join("uint", type.vecsize);
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case SPIRType::Half:
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return join("min16float", type.vecsize);
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case SPIRType::Float:
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return join("float", type.vecsize);
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case SPIRType::Double:
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return join("double", type.vecsize);
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case SPIRType::Int64:
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return join("i64vec", type.vecsize);
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case SPIRType::UInt64:
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return join("u64vec", type.vecsize);
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default:
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return "???";
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}
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}
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else
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{
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switch (type.basetype)
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{
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case SPIRType::Boolean:
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return join("bool", type.columns, "x", type.vecsize);
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case SPIRType::Int:
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return join("int", type.columns, "x", type.vecsize);
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case SPIRType::UInt:
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return join("uint", type.columns, "x", type.vecsize);
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case SPIRType::Half:
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return join("min16float", type.columns, "x", type.vecsize);
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case SPIRType::Float:
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return join("float", type.columns, "x", type.vecsize);
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case SPIRType::Double:
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return join("double", type.columns, "x", type.vecsize);
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// Matrix types not supported for int64/uint64.
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default:
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return "???";
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}
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}
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}
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void CompilerHLSL::emit_header()
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{
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for (auto &header : header_lines)
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statement(header);
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if (header_lines.size() > 0)
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{
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statement("");
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}
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}
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void CompilerHLSL::emit_interface_block_globally(const SPIRVariable &var)
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{
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add_resource_name(var.self);
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|
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// The global copies of I/O variables should not contain interpolation qualifiers.
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// These are emitted inside the interface structs.
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auto &flags = ir.meta[var.self].decoration.decoration_flags;
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auto old_flags = flags;
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flags.reset();
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statement("static ", variable_decl(var), ";");
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flags = old_flags;
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}
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const char *CompilerHLSL::to_storage_qualifiers_glsl(const SPIRVariable &var)
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{
|
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// Input and output variables are handled specially in HLSL backend.
|
|
// The variables are declared as global, private variables, and do not need any qualifiers.
|
|
if (var.storage == StorageClassUniformConstant || var.storage == StorageClassUniform ||
|
|
var.storage == StorageClassPushConstant)
|
|
{
|
|
return "uniform ";
|
|
}
|
|
|
|
return "";
|
|
}
|
|
|
|
void CompilerHLSL::emit_builtin_outputs_in_struct()
|
|
{
|
|
auto &execution = get_entry_point();
|
|
|
|
bool legacy = hlsl_options.shader_model <= 30;
|
|
active_output_builtins.for_each_bit([&](uint32_t i) {
|
|
const char *type = nullptr;
|
|
const char *semantic = nullptr;
|
|
auto builtin = static_cast<BuiltIn>(i);
|
|
switch (builtin)
|
|
{
|
|
case BuiltInPosition:
|
|
type = "float4";
|
|
semantic = legacy ? "POSITION" : "SV_Position";
|
|
break;
|
|
|
|
case BuiltInFragDepth:
|
|
type = "float";
|
|
if (legacy)
|
|
{
|
|
semantic = "DEPTH";
|
|
}
|
|
else
|
|
{
|
|
if (hlsl_options.shader_model >= 50 && execution.flags.get(ExecutionModeDepthGreater))
|
|
semantic = "SV_DepthGreaterEqual";
|
|
else if (hlsl_options.shader_model >= 50 && execution.flags.get(ExecutionModeDepthLess))
|
|
semantic = "SV_DepthLessEqual";
|
|
else
|
|
semantic = "SV_Depth";
|
|
}
|
|
break;
|
|
|
|
case BuiltInClipDistance:
|
|
// HLSL is a bit weird here, use SV_ClipDistance0, SV_ClipDistance1 and so on with vectors.
|
|
for (uint32_t clip = 0; clip < clip_distance_count; clip += 4)
|
|
{
|
|
uint32_t to_declare = clip_distance_count - clip;
|
|
if (to_declare > 4)
|
|
to_declare = 4;
|
|
|
|
uint32_t semantic_index = clip / 4;
|
|
|
|
static const char *types[] = { "float", "float2", "float3", "float4" };
|
|
statement(types[to_declare - 1], " ", builtin_to_glsl(builtin, StorageClassOutput), semantic_index,
|
|
" : SV_ClipDistance", semantic_index, ";");
|
|
}
|
|
break;
|
|
|
|
case BuiltInCullDistance:
|
|
// HLSL is a bit weird here, use SV_CullDistance0, SV_CullDistance1 and so on with vectors.
|
|
for (uint32_t cull = 0; cull < cull_distance_count; cull += 4)
|
|
{
|
|
uint32_t to_declare = cull_distance_count - cull;
|
|
if (to_declare > 4)
|
|
to_declare = 4;
|
|
|
|
uint32_t semantic_index = cull / 4;
|
|
|
|
static const char *types[] = { "float", "float2", "float3", "float4" };
|
|
statement(types[to_declare - 1], " ", builtin_to_glsl(builtin, StorageClassOutput), semantic_index,
|
|
" : SV_CullDistance", semantic_index, ";");
|
|
}
|
|
break;
|
|
|
|
case BuiltInPointSize:
|
|
// If point_size_compat is enabled, just ignore PointSize.
|
|
// PointSize does not exist in HLSL, but some code bases might want to be able to use these shaders,
|
|
// even if it means working around the missing feature.
|
|
if (hlsl_options.point_size_compat)
|
|
break;
|
|
else
|
|
SPIRV_CROSS_THROW("Unsupported builtin in HLSL.");
|
|
|
|
default:
|
|
SPIRV_CROSS_THROW("Unsupported builtin in HLSL.");
|
|
break;
|
|
}
|
|
|
|
if (type && semantic)
|
|
statement(type, " ", builtin_to_glsl(builtin, StorageClassOutput), " : ", semantic, ";");
|
|
});
|
|
}
|
|
|
|
void CompilerHLSL::emit_builtin_inputs_in_struct()
|
|
{
|
|
bool legacy = hlsl_options.shader_model <= 30;
|
|
active_input_builtins.for_each_bit([&](uint32_t i) {
|
|
const char *type = nullptr;
|
|
const char *semantic = nullptr;
|
|
auto builtin = static_cast<BuiltIn>(i);
|
|
switch (builtin)
|
|
{
|
|
case BuiltInFragCoord:
|
|
type = "float4";
|
|
semantic = legacy ? "VPOS" : "SV_Position";
|
|
break;
|
|
|
|
case BuiltInVertexId:
|
|
case BuiltInVertexIndex:
|
|
if (legacy)
|
|
SPIRV_CROSS_THROW("Vertex index not supported in SM 3.0 or lower.");
|
|
type = "uint";
|
|
semantic = "SV_VertexID";
|
|
break;
|
|
|
|
case BuiltInInstanceId:
|
|
case BuiltInInstanceIndex:
|
|
if (legacy)
|
|
SPIRV_CROSS_THROW("Instance index not supported in SM 3.0 or lower.");
|
|
type = "uint";
|
|
semantic = "SV_InstanceID";
|
|
break;
|
|
|
|
case BuiltInSampleId:
|
|
if (legacy)
|
|
SPIRV_CROSS_THROW("Sample ID not supported in SM 3.0 or lower.");
|
|
type = "uint";
|
|
semantic = "SV_SampleIndex";
|
|
break;
|
|
|
|
case BuiltInGlobalInvocationId:
|
|
type = "uint3";
|
|
semantic = "SV_DispatchThreadID";
|
|
break;
|
|
|
|
case BuiltInLocalInvocationId:
|
|
type = "uint3";
|
|
semantic = "SV_GroupThreadID";
|
|
break;
|
|
|
|
case BuiltInLocalInvocationIndex:
|
|
type = "uint";
|
|
semantic = "SV_GroupIndex";
|
|
break;
|
|
|
|
case BuiltInWorkgroupId:
|
|
type = "uint3";
|
|
semantic = "SV_GroupID";
|
|
break;
|
|
|
|
case BuiltInFrontFacing:
|
|
type = "bool";
|
|
semantic = "SV_IsFrontFace";
|
|
break;
|
|
|
|
case BuiltInNumWorkgroups:
|
|
case BuiltInSubgroupSize:
|
|
case BuiltInSubgroupLocalInvocationId:
|
|
case BuiltInSubgroupEqMask:
|
|
case BuiltInSubgroupLtMask:
|
|
case BuiltInSubgroupLeMask:
|
|
case BuiltInSubgroupGtMask:
|
|
case BuiltInSubgroupGeMask:
|
|
// Handled specially.
|
|
break;
|
|
|
|
case BuiltInClipDistance:
|
|
// HLSL is a bit weird here, use SV_ClipDistance0, SV_ClipDistance1 and so on with vectors.
|
|
for (uint32_t clip = 0; clip < clip_distance_count; clip += 4)
|
|
{
|
|
uint32_t to_declare = clip_distance_count - clip;
|
|
if (to_declare > 4)
|
|
to_declare = 4;
|
|
|
|
uint32_t semantic_index = clip / 4;
|
|
|
|
static const char *types[] = { "float", "float2", "float3", "float4" };
|
|
statement(types[to_declare - 1], " ", builtin_to_glsl(builtin, StorageClassInput), semantic_index,
|
|
" : SV_ClipDistance", semantic_index, ";");
|
|
}
|
|
break;
|
|
|
|
case BuiltInCullDistance:
|
|
// HLSL is a bit weird here, use SV_CullDistance0, SV_CullDistance1 and so on with vectors.
|
|
for (uint32_t cull = 0; cull < cull_distance_count; cull += 4)
|
|
{
|
|
uint32_t to_declare = cull_distance_count - cull;
|
|
if (to_declare > 4)
|
|
to_declare = 4;
|
|
|
|
uint32_t semantic_index = cull / 4;
|
|
|
|
static const char *types[] = { "float", "float2", "float3", "float4" };
|
|
statement(types[to_declare - 1], " ", builtin_to_glsl(builtin, StorageClassInput), semantic_index,
|
|
" : SV_CullDistance", semantic_index, ";");
|
|
}
|
|
break;
|
|
|
|
case BuiltInPointCoord:
|
|
// PointCoord is not supported, but provide a way to just ignore that, similar to PointSize.
|
|
if (hlsl_options.point_coord_compat)
|
|
break;
|
|
else
|
|
SPIRV_CROSS_THROW("Unsupported builtin in HLSL.");
|
|
|
|
default:
|
|
SPIRV_CROSS_THROW("Unsupported builtin in HLSL.");
|
|
break;
|
|
}
|
|
|
|
if (type && semantic)
|
|
statement(type, " ", builtin_to_glsl(builtin, StorageClassInput), " : ", semantic, ";");
|
|
});
|
|
}
|
|
|
|
uint32_t CompilerHLSL::type_to_consumed_locations(const SPIRType &type) const
|
|
{
|
|
// TODO: Need to verify correctness.
|
|
uint32_t elements = 0;
|
|
|
|
if (type.basetype == SPIRType::Struct)
|
|
{
|
|
for (uint32_t i = 0; i < uint32_t(type.member_types.size()); i++)
|
|
elements += type_to_consumed_locations(get<SPIRType>(type.member_types[i]));
|
|
}
|
|
else
|
|
{
|
|
uint32_t array_multiplier = 1;
|
|
for (uint32_t i = 0; i < uint32_t(type.array.size()); i++)
|
|
{
|
|
if (type.array_size_literal[i])
|
|
array_multiplier *= type.array[i];
|
|
else
|
|
array_multiplier *= get<SPIRConstant>(type.array[i]).scalar();
|
|
}
|
|
elements += array_multiplier * type.columns;
|
|
}
|
|
return elements;
|
|
}
|
|
|
|
string CompilerHLSL::to_interpolation_qualifiers(const Bitset &flags)
|
|
{
|
|
string res;
|
|
//if (flags & (1ull << DecorationSmooth))
|
|
// res += "linear ";
|
|
if (flags.get(DecorationFlat))
|
|
res += "nointerpolation ";
|
|
if (flags.get(DecorationNoPerspective))
|
|
res += "noperspective ";
|
|
if (flags.get(DecorationCentroid))
|
|
res += "centroid ";
|
|
if (flags.get(DecorationPatch))
|
|
res += "patch "; // Seems to be different in actual HLSL.
|
|
if (flags.get(DecorationSample))
|
|
res += "sample ";
|
|
if (flags.get(DecorationInvariant))
|
|
res += "invariant "; // Not supported?
|
|
|
|
return res;
|
|
}
|
|
|
|
std::string CompilerHLSL::to_semantic(uint32_t location, ExecutionModel em, StorageClass sc)
|
|
{
|
|
if (em == ExecutionModelVertex && sc == StorageClassInput)
|
|
{
|
|
// We have a vertex attribute - we should look at remapping it if the user provided
|
|
// vertex attribute hints.
|
|
for (auto &attribute : remap_vertex_attributes)
|
|
if (attribute.location == location)
|
|
return attribute.semantic;
|
|
}
|
|
|
|
// Not a vertex attribute, or no remap_vertex_attributes entry.
|
|
return join("TEXCOORD", location);
|
|
}
|
|
|
|
void CompilerHLSL::emit_io_block(const SPIRVariable &var)
|
|
{
|
|
auto &execution = get_entry_point();
|
|
|
|
auto &type = get<SPIRType>(var.basetype);
|
|
add_resource_name(type.self);
|
|
|
|
statement("struct ", to_name(type.self));
|
|
begin_scope();
|
|
type.member_name_cache.clear();
|
|
|
|
uint32_t base_location = get_decoration(var.self, DecorationLocation);
|
|
|
|
for (uint32_t i = 0; i < uint32_t(type.member_types.size()); i++)
|
|
{
|
|
string semantic;
|
|
if (has_member_decoration(type.self, i, DecorationLocation))
|
|
{
|
|
uint32_t location = get_member_decoration(type.self, i, DecorationLocation);
|
|
semantic = join(" : ", to_semantic(location, execution.model, var.storage));
|
|
}
|
|
else
|
|
{
|
|
// If the block itself has a location, but not its members, use the implicit location.
|
|
// There could be a conflict if the block members partially specialize the locations.
|
|
// It is unclear how SPIR-V deals with this. Assume this does not happen for now.
|
|
uint32_t location = base_location + i;
|
|
semantic = join(" : ", to_semantic(location, execution.model, var.storage));
|
|
}
|
|
|
|
add_member_name(type, i);
|
|
|
|
auto &membertype = get<SPIRType>(type.member_types[i]);
|
|
statement(to_interpolation_qualifiers(get_member_decoration_bitset(type.self, i)),
|
|
variable_decl(membertype, to_member_name(type, i)), semantic, ";");
|
|
}
|
|
|
|
end_scope_decl();
|
|
statement("");
|
|
|
|
statement("static ", variable_decl(var), ";");
|
|
statement("");
|
|
}
|
|
|
|
void CompilerHLSL::emit_interface_block_in_struct(const SPIRVariable &var, unordered_set<uint32_t> &active_locations)
|
|
{
|
|
auto &execution = get_entry_point();
|
|
auto type = get<SPIRType>(var.basetype);
|
|
|
|
string binding;
|
|
bool use_location_number = true;
|
|
bool legacy = hlsl_options.shader_model <= 30;
|
|
if (execution.model == ExecutionModelFragment && var.storage == StorageClassOutput)
|
|
{
|
|
// Dual-source blending is achieved in HLSL by emitting to SV_Target0 and 1.
|
|
uint32_t index = get_decoration(var.self, DecorationIndex);
|
|
uint32_t location = get_decoration(var.self, DecorationLocation);
|
|
|
|
if (index != 0 && location != 0)
|
|
SPIRV_CROSS_THROW("Dual-source blending is only supported on MRT #0 in HLSL.");
|
|
|
|
binding = join(legacy ? "COLOR" : "SV_Target", location + index);
|
|
use_location_number = false;
|
|
if (legacy) // COLOR must be a four-component vector on legacy shader model targets (HLSL ERR_COLOR_4COMP)
|
|
type.vecsize = 4;
|
|
}
|
|
|
|
const auto get_vacant_location = [&]() -> uint32_t {
|
|
for (uint32_t i = 0; i < 64; i++)
|
|
if (!active_locations.count(i))
|
|
return i;
|
|
SPIRV_CROSS_THROW("All locations from 0 to 63 are exhausted.");
|
|
};
|
|
|
|
bool need_matrix_unroll = var.storage == StorageClassInput && execution.model == ExecutionModelVertex;
|
|
|
|
auto &m = ir.meta[var.self].decoration;
|
|
auto name = to_name(var.self);
|
|
if (use_location_number)
|
|
{
|
|
uint32_t location_number;
|
|
|
|
// If an explicit location exists, use it with TEXCOORD[N] semantic.
|
|
// Otherwise, pick a vacant location.
|
|
if (m.decoration_flags.get(DecorationLocation))
|
|
location_number = m.location;
|
|
else
|
|
location_number = get_vacant_location();
|
|
|
|
// Allow semantic remap if specified.
|
|
auto semantic = to_semantic(location_number, execution.model, var.storage);
|
|
|
|
if (need_matrix_unroll && type.columns > 1)
|
|
{
|
|
if (!type.array.empty())
|
|
SPIRV_CROSS_THROW("Arrays of matrices used as input/output. This is not supported.");
|
|
|
|
// Unroll matrices.
|
|
for (uint32_t i = 0; i < type.columns; i++)
|
|
{
|
|
SPIRType newtype = type;
|
|
newtype.columns = 1;
|
|
statement(to_interpolation_qualifiers(get_decoration_bitset(var.self)),
|
|
variable_decl(newtype, join(name, "_", i)), " : ", semantic, "_", i, ";");
|
|
active_locations.insert(location_number++);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
statement(to_interpolation_qualifiers(get_decoration_bitset(var.self)), variable_decl(type, name), " : ",
|
|
semantic, ";");
|
|
|
|
// Structs and arrays should consume more locations.
|
|
uint32_t consumed_locations = type_to_consumed_locations(type);
|
|
for (uint32_t i = 0; i < consumed_locations; i++)
|
|
active_locations.insert(location_number + i);
|
|
}
|
|
}
|
|
else
|
|
statement(variable_decl(type, name), " : ", binding, ";");
|
|
}
|
|
|
|
std::string CompilerHLSL::builtin_to_glsl(spv::BuiltIn builtin, spv::StorageClass storage)
|
|
{
|
|
switch (builtin)
|
|
{
|
|
case BuiltInVertexId:
|
|
return "gl_VertexID";
|
|
case BuiltInInstanceId:
|
|
return "gl_InstanceID";
|
|
case BuiltInNumWorkgroups:
|
|
{
|
|
if (!num_workgroups_builtin)
|
|
SPIRV_CROSS_THROW("NumWorkgroups builtin is used, but remap_num_workgroups_builtin() was not called. "
|
|
"Cannot emit code for this builtin.");
|
|
|
|
auto &var = get<SPIRVariable>(num_workgroups_builtin);
|
|
auto &type = get<SPIRType>(var.basetype);
|
|
return sanitize_underscores(join(to_name(num_workgroups_builtin), "_", get_member_name(type.self, 0)));
|
|
}
|
|
case BuiltInPointCoord:
|
|
// Crude hack, but there is no real alternative. This path is only enabled if point_coord_compat is set.
|
|
return "float2(0.5f, 0.5f)";
|
|
case BuiltInSubgroupLocalInvocationId:
|
|
return "WaveGetLaneIndex()";
|
|
case BuiltInSubgroupSize:
|
|
return "WaveGetLaneCount()";
|
|
|
|
default:
|
|
return CompilerGLSL::builtin_to_glsl(builtin, storage);
|
|
}
|
|
}
|
|
|
|
void CompilerHLSL::emit_builtin_variables()
|
|
{
|
|
Bitset builtins = active_input_builtins;
|
|
builtins.merge_or(active_output_builtins);
|
|
|
|
bool need_base_vertex_info = false;
|
|
|
|
// Emit global variables for the interface variables which are statically used by the shader.
|
|
builtins.for_each_bit([&](uint32_t i) {
|
|
const char *type = nullptr;
|
|
auto builtin = static_cast<BuiltIn>(i);
|
|
uint32_t array_size = 0;
|
|
|
|
switch (builtin)
|
|
{
|
|
case BuiltInFragCoord:
|
|
case BuiltInPosition:
|
|
type = "float4";
|
|
break;
|
|
|
|
case BuiltInFragDepth:
|
|
type = "float";
|
|
break;
|
|
|
|
case BuiltInVertexId:
|
|
case BuiltInVertexIndex:
|
|
case BuiltInInstanceIndex:
|
|
type = "int";
|
|
if (hlsl_options.support_nonzero_base_vertex_base_instance)
|
|
need_base_vertex_info = true;
|
|
break;
|
|
|
|
case BuiltInInstanceId:
|
|
case BuiltInSampleId:
|
|
type = "int";
|
|
break;
|
|
|
|
case BuiltInPointSize:
|
|
if (hlsl_options.point_size_compat)
|
|
{
|
|
// Just emit the global variable, it will be ignored.
|
|
type = "float";
|
|
break;
|
|
}
|
|
else
|
|
SPIRV_CROSS_THROW(join("Unsupported builtin in HLSL: ", unsigned(builtin)));
|
|
|
|
case BuiltInGlobalInvocationId:
|
|
case BuiltInLocalInvocationId:
|
|
case BuiltInWorkgroupId:
|
|
type = "uint3";
|
|
break;
|
|
|
|
case BuiltInLocalInvocationIndex:
|
|
type = "uint";
|
|
break;
|
|
|
|
case BuiltInFrontFacing:
|
|
type = "bool";
|
|
break;
|
|
|
|
case BuiltInNumWorkgroups:
|
|
case BuiltInPointCoord:
|
|
// Handled specially.
|
|
break;
|
|
|
|
case BuiltInSubgroupLocalInvocationId:
|
|
case BuiltInSubgroupSize:
|
|
if (hlsl_options.shader_model < 60)
|
|
SPIRV_CROSS_THROW("Need SM 6.0 for Wave ops.");
|
|
break;
|
|
|
|
case BuiltInSubgroupEqMask:
|
|
case BuiltInSubgroupLtMask:
|
|
case BuiltInSubgroupLeMask:
|
|
case BuiltInSubgroupGtMask:
|
|
case BuiltInSubgroupGeMask:
|
|
if (hlsl_options.shader_model < 60)
|
|
SPIRV_CROSS_THROW("Need SM 6.0 for Wave ops.");
|
|
type = "uint4";
|
|
break;
|
|
|
|
case BuiltInClipDistance:
|
|
array_size = clip_distance_count;
|
|
type = "float";
|
|
break;
|
|
|
|
case BuiltInCullDistance:
|
|
array_size = cull_distance_count;
|
|
type = "float";
|
|
break;
|
|
|
|
default:
|
|
SPIRV_CROSS_THROW(join("Unsupported builtin in HLSL: ", unsigned(builtin)));
|
|
}
|
|
|
|
StorageClass storage = active_input_builtins.get(i) ? StorageClassInput : StorageClassOutput;
|
|
// FIXME: SampleMask can be both in and out with sample builtin,
|
|
// need to distinguish that when we add support for that.
|
|
|
|
if (type)
|
|
{
|
|
if (array_size)
|
|
statement("static ", type, " ", builtin_to_glsl(builtin, storage), "[", array_size, "];");
|
|
else
|
|
statement("static ", type, " ", builtin_to_glsl(builtin, storage), ";");
|
|
}
|
|
});
|
|
|
|
if (need_base_vertex_info)
|
|
{
|
|
statement("cbuffer SPIRV_Cross_VertexInfo");
|
|
begin_scope();
|
|
statement("int SPIRV_Cross_BaseVertex;");
|
|
statement("int SPIRV_Cross_BaseInstance;");
|
|
end_scope_decl();
|
|
statement("");
|
|
}
|
|
}
|
|
|
|
void CompilerHLSL::emit_composite_constants()
|
|
{
|
|
// HLSL cannot declare structs or arrays inline, so we must move them out to
|
|
// global constants directly.
|
|
bool emitted = false;
|
|
|
|
ir.for_each_typed_id<SPIRConstant>([&](uint32_t, SPIRConstant &c) {
|
|
if (c.specialization)
|
|
return;
|
|
|
|
auto &type = this->get<SPIRType>(c.constant_type);
|
|
if (type.basetype == SPIRType::Struct || !type.array.empty())
|
|
{
|
|
auto name = to_name(c.self);
|
|
statement("static const ", variable_decl(type, name), " = ", constant_expression(c), ";");
|
|
emitted = true;
|
|
}
|
|
});
|
|
|
|
if (emitted)
|
|
statement("");
|
|
}
|
|
|
|
void CompilerHLSL::emit_specialization_constants_and_structs()
|
|
{
|
|
bool emitted = false;
|
|
SpecializationConstant wg_x, wg_y, wg_z;
|
|
ID workgroup_size_id = get_work_group_size_specialization_constants(wg_x, wg_y, wg_z);
|
|
|
|
auto loop_lock = ir.create_loop_hard_lock();
|
|
for (auto &id_ : ir.ids_for_constant_or_type)
|
|
{
|
|
auto &id = ir.ids[id_];
|
|
|
|
if (id.get_type() == TypeConstant)
|
|
{
|
|
auto &c = id.get<SPIRConstant>();
|
|
|
|
if (c.self == workgroup_size_id)
|
|
{
|
|
statement("static const uint3 gl_WorkGroupSize = ",
|
|
constant_expression(get<SPIRConstant>(workgroup_size_id)), ";");
|
|
emitted = true;
|
|
}
|
|
else if (c.specialization)
|
|
{
|
|
auto &type = get<SPIRType>(c.constant_type);
|
|
auto name = to_name(c.self);
|
|
|
|
// HLSL does not support specialization constants, so fallback to macros.
|
|
c.specialization_constant_macro_name =
|
|
constant_value_macro_name(get_decoration(c.self, DecorationSpecId));
|
|
|
|
statement("#ifndef ", c.specialization_constant_macro_name);
|
|
statement("#define ", c.specialization_constant_macro_name, " ", constant_expression(c));
|
|
statement("#endif");
|
|
statement("static const ", variable_decl(type, name), " = ", c.specialization_constant_macro_name, ";");
|
|
emitted = true;
|
|
}
|
|
}
|
|
else if (id.get_type() == TypeConstantOp)
|
|
{
|
|
auto &c = id.get<SPIRConstantOp>();
|
|
auto &type = get<SPIRType>(c.basetype);
|
|
auto name = to_name(c.self);
|
|
statement("static const ", variable_decl(type, name), " = ", constant_op_expression(c), ";");
|
|
emitted = true;
|
|
}
|
|
else if (id.get_type() == TypeType)
|
|
{
|
|
auto &type = id.get<SPIRType>();
|
|
if (type.basetype == SPIRType::Struct && type.array.empty() && !type.pointer &&
|
|
(!ir.meta[type.self].decoration.decoration_flags.get(DecorationBlock) &&
|
|
!ir.meta[type.self].decoration.decoration_flags.get(DecorationBufferBlock)))
|
|
{
|
|
if (emitted)
|
|
statement("");
|
|
emitted = false;
|
|
|
|
emit_struct(type);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (emitted)
|
|
statement("");
|
|
}
|
|
|
|
void CompilerHLSL::replace_illegal_names()
|
|
{
|
|
static const unordered_set<string> keywords = {
|
|
// Additional HLSL specific keywords.
|
|
"line", "linear", "matrix", "point", "row_major", "sampler",
|
|
};
|
|
|
|
CompilerGLSL::replace_illegal_names(keywords);
|
|
CompilerGLSL::replace_illegal_names();
|
|
}
|
|
|
|
void CompilerHLSL::declare_undefined_values()
|
|
{
|
|
bool emitted = false;
|
|
ir.for_each_typed_id<SPIRUndef>([&](uint32_t, const SPIRUndef &undef) {
|
|
string initializer;
|
|
if (options.force_zero_initialized_variables && type_can_zero_initialize(this->get<SPIRType>(undef.basetype)))
|
|
initializer = join(" = ", to_zero_initialized_expression(undef.basetype));
|
|
|
|
statement("static ", variable_decl(this->get<SPIRType>(undef.basetype), to_name(undef.self), undef.self),
|
|
initializer, ";");
|
|
emitted = true;
|
|
});
|
|
|
|
if (emitted)
|
|
statement("");
|
|
}
|
|
|
|
void CompilerHLSL::emit_resources()
|
|
{
|
|
auto &execution = get_entry_point();
|
|
|
|
replace_illegal_names();
|
|
|
|
emit_specialization_constants_and_structs();
|
|
emit_composite_constants();
|
|
|
|
bool emitted = false;
|
|
|
|
// Output UBOs and SSBOs
|
|
ir.for_each_typed_id<SPIRVariable>([&](uint32_t, SPIRVariable &var) {
|
|
auto &type = this->get<SPIRType>(var.basetype);
|
|
|
|
bool is_block_storage = type.storage == StorageClassStorageBuffer || type.storage == StorageClassUniform;
|
|
bool has_block_flags = ir.meta[type.self].decoration.decoration_flags.get(DecorationBlock) ||
|
|
ir.meta[type.self].decoration.decoration_flags.get(DecorationBufferBlock);
|
|
|
|
if (var.storage != StorageClassFunction && type.pointer && is_block_storage && !is_hidden_variable(var) &&
|
|
has_block_flags)
|
|
{
|
|
emit_buffer_block(var);
|
|
emitted = true;
|
|
}
|
|
});
|
|
|
|
// Output push constant blocks
|
|
ir.for_each_typed_id<SPIRVariable>([&](uint32_t, SPIRVariable &var) {
|
|
auto &type = this->get<SPIRType>(var.basetype);
|
|
if (var.storage != StorageClassFunction && type.pointer && type.storage == StorageClassPushConstant &&
|
|
!is_hidden_variable(var))
|
|
{
|
|
emit_push_constant_block(var);
|
|
emitted = true;
|
|
}
|
|
});
|
|
|
|
if (execution.model == ExecutionModelVertex && hlsl_options.shader_model <= 30)
|
|
{
|
|
statement("uniform float4 gl_HalfPixel;");
|
|
emitted = true;
|
|
}
|
|
|
|
bool skip_separate_image_sampler = !combined_image_samplers.empty() || hlsl_options.shader_model <= 30;
|
|
|
|
// Output Uniform Constants (values, samplers, images, etc).
|
|
ir.for_each_typed_id<SPIRVariable>([&](uint32_t, SPIRVariable &var) {
|
|
auto &type = this->get<SPIRType>(var.basetype);
|
|
|
|
// If we're remapping separate samplers and images, only emit the combined samplers.
|
|
if (skip_separate_image_sampler)
|
|
{
|
|
// Sampler buffers are always used without a sampler, and they will also work in regular D3D.
|
|
bool sampler_buffer = type.basetype == SPIRType::Image && type.image.dim == DimBuffer;
|
|
bool separate_image = type.basetype == SPIRType::Image && type.image.sampled == 1;
|
|
bool separate_sampler = type.basetype == SPIRType::Sampler;
|
|
if (!sampler_buffer && (separate_image || separate_sampler))
|
|
return;
|
|
}
|
|
|
|
if (var.storage != StorageClassFunction && !is_builtin_variable(var) && !var.remapped_variable &&
|
|
type.pointer && (type.storage == StorageClassUniformConstant || type.storage == StorageClassAtomicCounter))
|
|
{
|
|
emit_uniform(var);
|
|
emitted = true;
|
|
}
|
|
});
|
|
|
|
if (emitted)
|
|
statement("");
|
|
emitted = false;
|
|
|
|
// Emit builtin input and output variables here.
|
|
emit_builtin_variables();
|
|
|
|
ir.for_each_typed_id<SPIRVariable>([&](uint32_t, SPIRVariable &var) {
|
|
auto &type = this->get<SPIRType>(var.basetype);
|
|
bool block = ir.meta[type.self].decoration.decoration_flags.get(DecorationBlock);
|
|
|
|
// Do not emit I/O blocks here.
|
|
// I/O blocks can be arrayed, so we must deal with them separately to support geometry shaders
|
|
// and tessellation down the line.
|
|
if (!block && var.storage != StorageClassFunction && !var.remapped_variable && type.pointer &&
|
|
(var.storage == StorageClassInput || var.storage == StorageClassOutput) && !is_builtin_variable(var) &&
|
|
interface_variable_exists_in_entry_point(var.self))
|
|
{
|
|
// Only emit non-builtins which are not blocks here. Builtin variables are handled separately.
|
|
emit_interface_block_globally(var);
|
|
emitted = true;
|
|
}
|
|
});
|
|
|
|
if (emitted)
|
|
statement("");
|
|
emitted = false;
|
|
|
|
require_input = false;
|
|
require_output = false;
|
|
unordered_set<uint32_t> active_inputs;
|
|
unordered_set<uint32_t> active_outputs;
|
|
SmallVector<SPIRVariable *> input_variables;
|
|
SmallVector<SPIRVariable *> output_variables;
|
|
ir.for_each_typed_id<SPIRVariable>([&](uint32_t, SPIRVariable &var) {
|
|
auto &type = this->get<SPIRType>(var.basetype);
|
|
bool block = ir.meta[type.self].decoration.decoration_flags.get(DecorationBlock);
|
|
|
|
if (var.storage != StorageClassInput && var.storage != StorageClassOutput)
|
|
return;
|
|
|
|
// Do not emit I/O blocks here.
|
|
// I/O blocks can be arrayed, so we must deal with them separately to support geometry shaders
|
|
// and tessellation down the line.
|
|
if (!block && !var.remapped_variable && type.pointer && !is_builtin_variable(var) &&
|
|
interface_variable_exists_in_entry_point(var.self))
|
|
{
|
|
if (var.storage == StorageClassInput)
|
|
input_variables.push_back(&var);
|
|
else
|
|
output_variables.push_back(&var);
|
|
}
|
|
|
|
// Reserve input and output locations for block variables as necessary.
|
|
if (block && !is_builtin_variable(var) && interface_variable_exists_in_entry_point(var.self))
|
|
{
|
|
auto &active = var.storage == StorageClassInput ? active_inputs : active_outputs;
|
|
for (uint32_t i = 0; i < uint32_t(type.member_types.size()); i++)
|
|
{
|
|
if (has_member_decoration(type.self, i, DecorationLocation))
|
|
{
|
|
uint32_t location = get_member_decoration(type.self, i, DecorationLocation);
|
|
active.insert(location);
|
|
}
|
|
}
|
|
|
|
// Emit the block struct and a global variable here.
|
|
emit_io_block(var);
|
|
}
|
|
});
|
|
|
|
const auto variable_compare = [&](const SPIRVariable *a, const SPIRVariable *b) -> bool {
|
|
// Sort input and output variables based on, from more robust to less robust:
|
|
// - Location
|
|
// - Variable has a location
|
|
// - Name comparison
|
|
// - Variable has a name
|
|
// - Fallback: ID
|
|
bool has_location_a = has_decoration(a->self, DecorationLocation);
|
|
bool has_location_b = has_decoration(b->self, DecorationLocation);
|
|
|
|
if (has_location_a && has_location_b)
|
|
{
|
|
return get_decoration(a->self, DecorationLocation) < get_decoration(b->self, DecorationLocation);
|
|
}
|
|
else if (has_location_a && !has_location_b)
|
|
return true;
|
|
else if (!has_location_a && has_location_b)
|
|
return false;
|
|
|
|
const auto &name1 = to_name(a->self);
|
|
const auto &name2 = to_name(b->self);
|
|
|
|
if (name1.empty() && name2.empty())
|
|
return a->self < b->self;
|
|
else if (name1.empty())
|
|
return true;
|
|
else if (name2.empty())
|
|
return false;
|
|
|
|
return name1.compare(name2) < 0;
|
|
};
|
|
|
|
auto input_builtins = active_input_builtins;
|
|
input_builtins.clear(BuiltInNumWorkgroups);
|
|
input_builtins.clear(BuiltInPointCoord);
|
|
input_builtins.clear(BuiltInSubgroupSize);
|
|
input_builtins.clear(BuiltInSubgroupLocalInvocationId);
|
|
input_builtins.clear(BuiltInSubgroupEqMask);
|
|
input_builtins.clear(BuiltInSubgroupLtMask);
|
|
input_builtins.clear(BuiltInSubgroupLeMask);
|
|
input_builtins.clear(BuiltInSubgroupGtMask);
|
|
input_builtins.clear(BuiltInSubgroupGeMask);
|
|
|
|
if (!input_variables.empty() || !input_builtins.empty())
|
|
{
|
|
require_input = true;
|
|
statement("struct SPIRV_Cross_Input");
|
|
|
|
begin_scope();
|
|
sort(input_variables.begin(), input_variables.end(), variable_compare);
|
|
for (auto var : input_variables)
|
|
emit_interface_block_in_struct(*var, active_inputs);
|
|
emit_builtin_inputs_in_struct();
|
|
end_scope_decl();
|
|
statement("");
|
|
}
|
|
|
|
if (!output_variables.empty() || !active_output_builtins.empty())
|
|
{
|
|
require_output = true;
|
|
statement("struct SPIRV_Cross_Output");
|
|
|
|
begin_scope();
|
|
// FIXME: Use locations properly if they exist.
|
|
sort(output_variables.begin(), output_variables.end(), variable_compare);
|
|
for (auto var : output_variables)
|
|
emit_interface_block_in_struct(*var, active_outputs);
|
|
emit_builtin_outputs_in_struct();
|
|
end_scope_decl();
|
|
statement("");
|
|
}
|
|
|
|
// Global variables.
|
|
for (auto global : global_variables)
|
|
{
|
|
auto &var = get<SPIRVariable>(global);
|
|
if (var.storage != StorageClassOutput)
|
|
{
|
|
if (!variable_is_lut(var))
|
|
{
|
|
add_resource_name(var.self);
|
|
|
|
const char *storage = nullptr;
|
|
switch (var.storage)
|
|
{
|
|
case StorageClassWorkgroup:
|
|
storage = "groupshared";
|
|
break;
|
|
|
|
default:
|
|
storage = "static";
|
|
break;
|
|
}
|
|
|
|
string initializer;
|
|
if (options.force_zero_initialized_variables && var.storage == StorageClassPrivate &&
|
|
!var.initializer && !var.static_expression && type_can_zero_initialize(get_variable_data_type(var)))
|
|
{
|
|
initializer = join(" = ", to_zero_initialized_expression(get_variable_data_type_id(var)));
|
|
}
|
|
statement(storage, " ", variable_decl(var), initializer, ";");
|
|
|
|
emitted = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (emitted)
|
|
statement("");
|
|
|
|
declare_undefined_values();
|
|
|
|
if (requires_op_fmod)
|
|
{
|
|
static const char *types[] = {
|
|
"float",
|
|
"float2",
|
|
"float3",
|
|
"float4",
|
|
};
|
|
|
|
for (auto &type : types)
|
|
{
|
|
statement(type, " mod(", type, " x, ", type, " y)");
|
|
begin_scope();
|
|
statement("return x - y * floor(x / y);");
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
}
|
|
|
|
emit_texture_size_variants(required_texture_size_variants.srv, "4", false, "");
|
|
for (uint32_t norm = 0; norm < 3; norm++)
|
|
{
|
|
for (uint32_t comp = 0; comp < 4; comp++)
|
|
{
|
|
static const char *qualifiers[] = { "", "unorm ", "snorm " };
|
|
static const char *vecsizes[] = { "", "2", "3", "4" };
|
|
emit_texture_size_variants(required_texture_size_variants.uav[norm][comp], vecsizes[comp], true, qualifiers[norm]);
|
|
}
|
|
}
|
|
|
|
if (requires_fp16_packing)
|
|
{
|
|
// HLSL does not pack into a single word sadly :(
|
|
statement("uint SPIRV_Cross_packHalf2x16(float2 value)");
|
|
begin_scope();
|
|
statement("uint2 Packed = f32tof16(value);");
|
|
statement("return Packed.x | (Packed.y << 16);");
|
|
end_scope();
|
|
statement("");
|
|
|
|
statement("float2 SPIRV_Cross_unpackHalf2x16(uint value)");
|
|
begin_scope();
|
|
statement("return f16tof32(uint2(value & 0xffff, value >> 16));");
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
|
|
if (requires_uint2_packing)
|
|
{
|
|
statement("uint64_t SPIRV_Cross_packUint2x32(uint2 value)");
|
|
begin_scope();
|
|
statement("return (uint64_t(value.y) << 32) | uint64_t(value.x);");
|
|
end_scope();
|
|
statement("");
|
|
|
|
statement("uint2 SPIRV_Cross_unpackUint2x32(uint64_t value)");
|
|
begin_scope();
|
|
statement("uint2 Unpacked;");
|
|
statement("Unpacked.x = uint(value & 0xffffffff);");
|
|
statement("Unpacked.y = uint(value >> 32);");
|
|
statement("return Unpacked;");
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
|
|
if (requires_explicit_fp16_packing)
|
|
{
|
|
// HLSL does not pack into a single word sadly :(
|
|
statement("uint SPIRV_Cross_packFloat2x16(min16float2 value)");
|
|
begin_scope();
|
|
statement("uint2 Packed = f32tof16(value);");
|
|
statement("return Packed.x | (Packed.y << 16);");
|
|
end_scope();
|
|
statement("");
|
|
|
|
statement("min16float2 SPIRV_Cross_unpackFloat2x16(uint value)");
|
|
begin_scope();
|
|
statement("return min16float2(f16tof32(uint2(value & 0xffff, value >> 16)));");
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
|
|
// HLSL does not seem to have builtins for these operation, so roll them by hand ...
|
|
if (requires_unorm8_packing)
|
|
{
|
|
statement("uint SPIRV_Cross_packUnorm4x8(float4 value)");
|
|
begin_scope();
|
|
statement("uint4 Packed = uint4(round(saturate(value) * 255.0));");
|
|
statement("return Packed.x | (Packed.y << 8) | (Packed.z << 16) | (Packed.w << 24);");
|
|
end_scope();
|
|
statement("");
|
|
|
|
statement("float4 SPIRV_Cross_unpackUnorm4x8(uint value)");
|
|
begin_scope();
|
|
statement("uint4 Packed = uint4(value & 0xff, (value >> 8) & 0xff, (value >> 16) & 0xff, value >> 24);");
|
|
statement("return float4(Packed) / 255.0;");
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
|
|
if (requires_snorm8_packing)
|
|
{
|
|
statement("uint SPIRV_Cross_packSnorm4x8(float4 value)");
|
|
begin_scope();
|
|
statement("int4 Packed = int4(round(clamp(value, -1.0, 1.0) * 127.0)) & 0xff;");
|
|
statement("return uint(Packed.x | (Packed.y << 8) | (Packed.z << 16) | (Packed.w << 24));");
|
|
end_scope();
|
|
statement("");
|
|
|
|
statement("float4 SPIRV_Cross_unpackSnorm4x8(uint value)");
|
|
begin_scope();
|
|
statement("int SignedValue = int(value);");
|
|
statement("int4 Packed = int4(SignedValue << 24, SignedValue << 16, SignedValue << 8, SignedValue) >> 24;");
|
|
statement("return clamp(float4(Packed) / 127.0, -1.0, 1.0);");
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
|
|
if (requires_unorm16_packing)
|
|
{
|
|
statement("uint SPIRV_Cross_packUnorm2x16(float2 value)");
|
|
begin_scope();
|
|
statement("uint2 Packed = uint2(round(saturate(value) * 65535.0));");
|
|
statement("return Packed.x | (Packed.y << 16);");
|
|
end_scope();
|
|
statement("");
|
|
|
|
statement("float2 SPIRV_Cross_unpackUnorm2x16(uint value)");
|
|
begin_scope();
|
|
statement("uint2 Packed = uint2(value & 0xffff, value >> 16);");
|
|
statement("return float2(Packed) / 65535.0;");
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
|
|
if (requires_snorm16_packing)
|
|
{
|
|
statement("uint SPIRV_Cross_packSnorm2x16(float2 value)");
|
|
begin_scope();
|
|
statement("int2 Packed = int2(round(clamp(value, -1.0, 1.0) * 32767.0)) & 0xffff;");
|
|
statement("return uint(Packed.x | (Packed.y << 16));");
|
|
end_scope();
|
|
statement("");
|
|
|
|
statement("float2 SPIRV_Cross_unpackSnorm2x16(uint value)");
|
|
begin_scope();
|
|
statement("int SignedValue = int(value);");
|
|
statement("int2 Packed = int2(SignedValue << 16, SignedValue) >> 16;");
|
|
statement("return clamp(float2(Packed) / 32767.0, -1.0, 1.0);");
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
|
|
if (requires_bitfield_insert)
|
|
{
|
|
static const char *types[] = { "uint", "uint2", "uint3", "uint4" };
|
|
for (auto &type : types)
|
|
{
|
|
statement(type, " SPIRV_Cross_bitfieldInsert(", type, " Base, ", type, " Insert, uint Offset, uint Count)");
|
|
begin_scope();
|
|
statement("uint Mask = Count == 32 ? 0xffffffff : (((1u << Count) - 1) << (Offset & 31));");
|
|
statement("return (Base & ~Mask) | ((Insert << Offset) & Mask);");
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
}
|
|
|
|
if (requires_bitfield_extract)
|
|
{
|
|
static const char *unsigned_types[] = { "uint", "uint2", "uint3", "uint4" };
|
|
for (auto &type : unsigned_types)
|
|
{
|
|
statement(type, " SPIRV_Cross_bitfieldUExtract(", type, " Base, uint Offset, uint Count)");
|
|
begin_scope();
|
|
statement("uint Mask = Count == 32 ? 0xffffffff : ((1 << Count) - 1);");
|
|
statement("return (Base >> Offset) & Mask;");
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
|
|
// In this overload, we will have to do sign-extension, which we will emulate by shifting up and down.
|
|
static const char *signed_types[] = { "int", "int2", "int3", "int4" };
|
|
for (auto &type : signed_types)
|
|
{
|
|
statement(type, " SPIRV_Cross_bitfieldSExtract(", type, " Base, int Offset, int Count)");
|
|
begin_scope();
|
|
statement("int Mask = Count == 32 ? -1 : ((1 << Count) - 1);");
|
|
statement(type, " Masked = (Base >> Offset) & Mask;");
|
|
statement("int ExtendShift = (32 - Count) & 31;");
|
|
statement("return (Masked << ExtendShift) >> ExtendShift;");
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
}
|
|
|
|
if (requires_inverse_2x2)
|
|
{
|
|
statement("// Returns the inverse of a matrix, by using the algorithm of calculating the classical");
|
|
statement("// adjoint and dividing by the determinant. The contents of the matrix are changed.");
|
|
statement("float2x2 SPIRV_Cross_Inverse(float2x2 m)");
|
|
begin_scope();
|
|
statement("float2x2 adj; // The adjoint matrix (inverse after dividing by determinant)");
|
|
statement_no_indent("");
|
|
statement("// Create the transpose of the cofactors, as the classical adjoint of the matrix.");
|
|
statement("adj[0][0] = m[1][1];");
|
|
statement("adj[0][1] = -m[0][1];");
|
|
statement_no_indent("");
|
|
statement("adj[1][0] = -m[1][0];");
|
|
statement("adj[1][1] = m[0][0];");
|
|
statement_no_indent("");
|
|
statement("// Calculate the determinant as a combination of the cofactors of the first row.");
|
|
statement("float det = (adj[0][0] * m[0][0]) + (adj[0][1] * m[1][0]);");
|
|
statement_no_indent("");
|
|
statement("// Divide the classical adjoint matrix by the determinant.");
|
|
statement("// If determinant is zero, matrix is not invertable, so leave it unchanged.");
|
|
statement("return (det != 0.0f) ? (adj * (1.0f / det)) : m;");
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
|
|
if (requires_inverse_3x3)
|
|
{
|
|
statement("// Returns the determinant of a 2x2 matrix.");
|
|
statement("float SPIRV_Cross_Det2x2(float a1, float a2, float b1, float b2)");
|
|
begin_scope();
|
|
statement("return a1 * b2 - b1 * a2;");
|
|
end_scope();
|
|
statement_no_indent("");
|
|
statement("// Returns the inverse of a matrix, by using the algorithm of calculating the classical");
|
|
statement("// adjoint and dividing by the determinant. The contents of the matrix are changed.");
|
|
statement("float3x3 SPIRV_Cross_Inverse(float3x3 m)");
|
|
begin_scope();
|
|
statement("float3x3 adj; // The adjoint matrix (inverse after dividing by determinant)");
|
|
statement_no_indent("");
|
|
statement("// Create the transpose of the cofactors, as the classical adjoint of the matrix.");
|
|
statement("adj[0][0] = SPIRV_Cross_Det2x2(m[1][1], m[1][2], m[2][1], m[2][2]);");
|
|
statement("adj[0][1] = -SPIRV_Cross_Det2x2(m[0][1], m[0][2], m[2][1], m[2][2]);");
|
|
statement("adj[0][2] = SPIRV_Cross_Det2x2(m[0][1], m[0][2], m[1][1], m[1][2]);");
|
|
statement_no_indent("");
|
|
statement("adj[1][0] = -SPIRV_Cross_Det2x2(m[1][0], m[1][2], m[2][0], m[2][2]);");
|
|
statement("adj[1][1] = SPIRV_Cross_Det2x2(m[0][0], m[0][2], m[2][0], m[2][2]);");
|
|
statement("adj[1][2] = -SPIRV_Cross_Det2x2(m[0][0], m[0][2], m[1][0], m[1][2]);");
|
|
statement_no_indent("");
|
|
statement("adj[2][0] = SPIRV_Cross_Det2x2(m[1][0], m[1][1], m[2][0], m[2][1]);");
|
|
statement("adj[2][1] = -SPIRV_Cross_Det2x2(m[0][0], m[0][1], m[2][0], m[2][1]);");
|
|
statement("adj[2][2] = SPIRV_Cross_Det2x2(m[0][0], m[0][1], m[1][0], m[1][1]);");
|
|
statement_no_indent("");
|
|
statement("// Calculate the determinant as a combination of the cofactors of the first row.");
|
|
statement("float det = (adj[0][0] * m[0][0]) + (adj[0][1] * m[1][0]) + (adj[0][2] * m[2][0]);");
|
|
statement_no_indent("");
|
|
statement("// Divide the classical adjoint matrix by the determinant.");
|
|
statement("// If determinant is zero, matrix is not invertable, so leave it unchanged.");
|
|
statement("return (det != 0.0f) ? (adj * (1.0f / det)) : m;");
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
|
|
if (requires_inverse_4x4)
|
|
{
|
|
if (!requires_inverse_3x3)
|
|
{
|
|
statement("// Returns the determinant of a 2x2 matrix.");
|
|
statement("float SPIRV_Cross_Det2x2(float a1, float a2, float b1, float b2)");
|
|
begin_scope();
|
|
statement("return a1 * b2 - b1 * a2;");
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
|
|
statement("// Returns the determinant of a 3x3 matrix.");
|
|
statement("float SPIRV_Cross_Det3x3(float a1, float a2, float a3, float b1, float b2, float b3, float c1, "
|
|
"float c2, float c3)");
|
|
begin_scope();
|
|
statement("return a1 * SPIRV_Cross_Det2x2(b2, b3, c2, c3) - b1 * SPIRV_Cross_Det2x2(a2, a3, c2, c3) + c1 * "
|
|
"SPIRV_Cross_Det2x2(a2, a3, "
|
|
"b2, b3);");
|
|
end_scope();
|
|
statement_no_indent("");
|
|
statement("// Returns the inverse of a matrix, by using the algorithm of calculating the classical");
|
|
statement("// adjoint and dividing by the determinant. The contents of the matrix are changed.");
|
|
statement("float4x4 SPIRV_Cross_Inverse(float4x4 m)");
|
|
begin_scope();
|
|
statement("float4x4 adj; // The adjoint matrix (inverse after dividing by determinant)");
|
|
statement_no_indent("");
|
|
statement("// Create the transpose of the cofactors, as the classical adjoint of the matrix.");
|
|
statement(
|
|
"adj[0][0] = SPIRV_Cross_Det3x3(m[1][1], m[1][2], m[1][3], m[2][1], m[2][2], m[2][3], m[3][1], m[3][2], "
|
|
"m[3][3]);");
|
|
statement(
|
|
"adj[0][1] = -SPIRV_Cross_Det3x3(m[0][1], m[0][2], m[0][3], m[2][1], m[2][2], m[2][3], m[3][1], m[3][2], "
|
|
"m[3][3]);");
|
|
statement(
|
|
"adj[0][2] = SPIRV_Cross_Det3x3(m[0][1], m[0][2], m[0][3], m[1][1], m[1][2], m[1][3], m[3][1], m[3][2], "
|
|
"m[3][3]);");
|
|
statement(
|
|
"adj[0][3] = -SPIRV_Cross_Det3x3(m[0][1], m[0][2], m[0][3], m[1][1], m[1][2], m[1][3], m[2][1], m[2][2], "
|
|
"m[2][3]);");
|
|
statement_no_indent("");
|
|
statement(
|
|
"adj[1][0] = -SPIRV_Cross_Det3x3(m[1][0], m[1][2], m[1][3], m[2][0], m[2][2], m[2][3], m[3][0], m[3][2], "
|
|
"m[3][3]);");
|
|
statement(
|
|
"adj[1][1] = SPIRV_Cross_Det3x3(m[0][0], m[0][2], m[0][3], m[2][0], m[2][2], m[2][3], m[3][0], m[3][2], "
|
|
"m[3][3]);");
|
|
statement(
|
|
"adj[1][2] = -SPIRV_Cross_Det3x3(m[0][0], m[0][2], m[0][3], m[1][0], m[1][2], m[1][3], m[3][0], m[3][2], "
|
|
"m[3][3]);");
|
|
statement(
|
|
"adj[1][3] = SPIRV_Cross_Det3x3(m[0][0], m[0][2], m[0][3], m[1][0], m[1][2], m[1][3], m[2][0], m[2][2], "
|
|
"m[2][3]);");
|
|
statement_no_indent("");
|
|
statement(
|
|
"adj[2][0] = SPIRV_Cross_Det3x3(m[1][0], m[1][1], m[1][3], m[2][0], m[2][1], m[2][3], m[3][0], m[3][1], "
|
|
"m[3][3]);");
|
|
statement(
|
|
"adj[2][1] = -SPIRV_Cross_Det3x3(m[0][0], m[0][1], m[0][3], m[2][0], m[2][1], m[2][3], m[3][0], m[3][1], "
|
|
"m[3][3]);");
|
|
statement(
|
|
"adj[2][2] = SPIRV_Cross_Det3x3(m[0][0], m[0][1], m[0][3], m[1][0], m[1][1], m[1][3], m[3][0], m[3][1], "
|
|
"m[3][3]);");
|
|
statement(
|
|
"adj[2][3] = -SPIRV_Cross_Det3x3(m[0][0], m[0][1], m[0][3], m[1][0], m[1][1], m[1][3], m[2][0], m[2][1], "
|
|
"m[2][3]);");
|
|
statement_no_indent("");
|
|
statement(
|
|
"adj[3][0] = -SPIRV_Cross_Det3x3(m[1][0], m[1][1], m[1][2], m[2][0], m[2][1], m[2][2], m[3][0], m[3][1], "
|
|
"m[3][2]);");
|
|
statement(
|
|
"adj[3][1] = SPIRV_Cross_Det3x3(m[0][0], m[0][1], m[0][2], m[2][0], m[2][1], m[2][2], m[3][0], m[3][1], "
|
|
"m[3][2]);");
|
|
statement(
|
|
"adj[3][2] = -SPIRV_Cross_Det3x3(m[0][0], m[0][1], m[0][2], m[1][0], m[1][1], m[1][2], m[3][0], m[3][1], "
|
|
"m[3][2]);");
|
|
statement(
|
|
"adj[3][3] = SPIRV_Cross_Det3x3(m[0][0], m[0][1], m[0][2], m[1][0], m[1][1], m[1][2], m[2][0], m[2][1], "
|
|
"m[2][2]);");
|
|
statement_no_indent("");
|
|
statement("// Calculate the determinant as a combination of the cofactors of the first row.");
|
|
statement("float det = (adj[0][0] * m[0][0]) + (adj[0][1] * m[1][0]) + (adj[0][2] * m[2][0]) + (adj[0][3] "
|
|
"* m[3][0]);");
|
|
statement_no_indent("");
|
|
statement("// Divide the classical adjoint matrix by the determinant.");
|
|
statement("// If determinant is zero, matrix is not invertable, so leave it unchanged.");
|
|
statement("return (det != 0.0f) ? (adj * (1.0f / det)) : m;");
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
|
|
if (requires_scalar_reflect)
|
|
{
|
|
// FP16/FP64? No templates in HLSL.
|
|
statement("float SPIRV_Cross_Reflect(float i, float n)");
|
|
begin_scope();
|
|
statement("return i - 2.0 * dot(n, i) * n;");
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
|
|
if (requires_scalar_refract)
|
|
{
|
|
// FP16/FP64? No templates in HLSL.
|
|
statement("float SPIRV_Cross_Refract(float i, float n, float eta)");
|
|
begin_scope();
|
|
statement("float NoI = n * i;");
|
|
statement("float NoI2 = NoI * NoI;");
|
|
statement("float k = 1.0 - eta * eta * (1.0 - NoI2);");
|
|
statement("if (k < 0.0)");
|
|
begin_scope();
|
|
statement("return 0.0;");
|
|
end_scope();
|
|
statement("else");
|
|
begin_scope();
|
|
statement("return eta * i - (eta * NoI + sqrt(k)) * n;");
|
|
end_scope();
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
|
|
if (requires_scalar_faceforward)
|
|
{
|
|
// FP16/FP64? No templates in HLSL.
|
|
statement("float SPIRV_Cross_FaceForward(float n, float i, float nref)");
|
|
begin_scope();
|
|
statement("return i * nref < 0.0 ? n : -n;");
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
}
|
|
|
|
void CompilerHLSL::emit_texture_size_variants(uint64_t variant_mask, const char *vecsize_qualifier, bool uav, const char *type_qualifier)
|
|
{
|
|
if (variant_mask == 0)
|
|
return;
|
|
|
|
static const char *types[QueryTypeCount] = { "float", "int", "uint" };
|
|
static const char *dims[QueryDimCount] = { "Texture1D", "Texture1DArray", "Texture2D", "Texture2DArray",
|
|
"Texture3D", "Buffer", "TextureCube", "TextureCubeArray",
|
|
"Texture2DMS", "Texture2DMSArray" };
|
|
|
|
static const bool has_lod[QueryDimCount] = { true, true, true, true, true, false, true, true, false, false };
|
|
|
|
static const char *ret_types[QueryDimCount] = {
|
|
"uint", "uint2", "uint2", "uint3", "uint3", "uint", "uint2", "uint3", "uint2", "uint3",
|
|
};
|
|
|
|
static const uint32_t return_arguments[QueryDimCount] = {
|
|
1, 2, 2, 3, 3, 1, 2, 3, 2, 3,
|
|
};
|
|
|
|
for (uint32_t index = 0; index < QueryDimCount; index++)
|
|
{
|
|
for (uint32_t type_index = 0; type_index < QueryTypeCount; type_index++)
|
|
{
|
|
uint32_t bit = 16 * type_index + index;
|
|
uint64_t mask = 1ull << bit;
|
|
|
|
if ((variant_mask & mask) == 0)
|
|
continue;
|
|
|
|
statement(ret_types[index], " SPIRV_Cross_", (uav ? "image" : "texture"), "Size(", (uav ? "RW" : ""),
|
|
dims[index], "<", type_qualifier, types[type_index], vecsize_qualifier,
|
|
"> Tex, ", (uav ? "" : "uint Level, "), "out uint Param)");
|
|
begin_scope();
|
|
statement(ret_types[index], " ret;");
|
|
switch (return_arguments[index])
|
|
{
|
|
case 1:
|
|
if (has_lod[index] && !uav)
|
|
statement("Tex.GetDimensions(Level, ret.x, Param);");
|
|
else
|
|
{
|
|
statement("Tex.GetDimensions(ret.x);");
|
|
statement("Param = 0u;");
|
|
}
|
|
break;
|
|
case 2:
|
|
if (has_lod[index] && !uav)
|
|
statement("Tex.GetDimensions(Level, ret.x, ret.y, Param);");
|
|
else if (!uav)
|
|
statement("Tex.GetDimensions(ret.x, ret.y, Param);");
|
|
else
|
|
{
|
|
statement("Tex.GetDimensions(ret.x, ret.y);");
|
|
statement("Param = 0u;");
|
|
}
|
|
break;
|
|
case 3:
|
|
if (has_lod[index] && !uav)
|
|
statement("Tex.GetDimensions(Level, ret.x, ret.y, ret.z, Param);");
|
|
else if (!uav)
|
|
statement("Tex.GetDimensions(ret.x, ret.y, ret.z, Param);");
|
|
else
|
|
{
|
|
statement("Tex.GetDimensions(ret.x, ret.y, ret.z);");
|
|
statement("Param = 0u;");
|
|
}
|
|
break;
|
|
}
|
|
|
|
statement("return ret;");
|
|
end_scope();
|
|
statement("");
|
|
}
|
|
}
|
|
}
|
|
|
|
string CompilerHLSL::layout_for_member(const SPIRType &type, uint32_t index)
|
|
{
|
|
auto &flags = get_member_decoration_bitset(type.self, index);
|
|
|
|
// HLSL can emit row_major or column_major decoration in any struct.
|
|
// Do not try to merge combined decorations for children like in GLSL.
|
|
|
|
// Flip the convention. HLSL is a bit odd in that the memory layout is column major ... but the language API is "row-major".
|
|
// The way to deal with this is to multiply everything in inverse order, and reverse the memory layout.
|
|
if (flags.get(DecorationColMajor))
|
|
return "row_major ";
|
|
else if (flags.get(DecorationRowMajor))
|
|
return "column_major ";
|
|
|
|
return "";
|
|
}
|
|
|
|
void CompilerHLSL::emit_struct_member(const SPIRType &type, uint32_t member_type_id, uint32_t index,
|
|
const string &qualifier, uint32_t base_offset)
|
|
{
|
|
auto &membertype = get<SPIRType>(member_type_id);
|
|
|
|
Bitset memberflags;
|
|
auto &memb = ir.meta[type.self].members;
|
|
if (index < memb.size())
|
|
memberflags = memb[index].decoration_flags;
|
|
|
|
string qualifiers;
|
|
bool is_block = ir.meta[type.self].decoration.decoration_flags.get(DecorationBlock) ||
|
|
ir.meta[type.self].decoration.decoration_flags.get(DecorationBufferBlock);
|
|
|
|
if (is_block)
|
|
qualifiers = to_interpolation_qualifiers(memberflags);
|
|
|
|
string packing_offset;
|
|
bool is_push_constant = type.storage == StorageClassPushConstant;
|
|
|
|
if ((has_extended_decoration(type.self, SPIRVCrossDecorationExplicitOffset) || is_push_constant) &&
|
|
has_member_decoration(type.self, index, DecorationOffset))
|
|
{
|
|
uint32_t offset = memb[index].offset - base_offset;
|
|
if (offset & 3)
|
|
SPIRV_CROSS_THROW("Cannot pack on tighter bounds than 4 bytes in HLSL.");
|
|
|
|
static const char *packing_swizzle[] = { "", ".y", ".z", ".w" };
|
|
packing_offset = join(" : packoffset(c", offset / 16, packing_swizzle[(offset & 15) >> 2], ")");
|
|
}
|
|
|
|
statement(layout_for_member(type, index), qualifiers, qualifier,
|
|
variable_decl(membertype, to_member_name(type, index)), packing_offset, ";");
|
|
}
|
|
|
|
void CompilerHLSL::emit_buffer_block(const SPIRVariable &var)
|
|
{
|
|
auto &type = get<SPIRType>(var.basetype);
|
|
|
|
bool is_uav = var.storage == StorageClassStorageBuffer || has_decoration(type.self, DecorationBufferBlock);
|
|
|
|
if (is_uav)
|
|
{
|
|
Bitset flags = ir.get_buffer_block_flags(var);
|
|
bool is_readonly = flags.get(DecorationNonWritable) && !hlsl_options.force_storage_buffer_as_uav;
|
|
bool is_coherent = flags.get(DecorationCoherent) && !is_readonly;
|
|
bool is_interlocked = interlocked_resources.count(var.self) > 0;
|
|
const char *type_name = "ByteAddressBuffer ";
|
|
if (!is_readonly)
|
|
type_name = is_interlocked ? "RasterizerOrderedByteAddressBuffer " : "RWByteAddressBuffer ";
|
|
add_resource_name(var.self);
|
|
statement(is_coherent ? "globallycoherent " : "", type_name, to_name(var.self), type_to_array_glsl(type),
|
|
to_resource_binding(var), ";");
|
|
}
|
|
else
|
|
{
|
|
if (type.array.empty())
|
|
{
|
|
// Flatten the top-level struct so we can use packoffset,
|
|
// this restriction is similar to GLSL where layout(offset) is not possible on sub-structs.
|
|
flattened_structs.insert(var.self);
|
|
|
|
// Prefer the block name if possible.
|
|
auto buffer_name = to_name(type.self, false);
|
|
if (ir.meta[type.self].decoration.alias.empty() ||
|
|
resource_names.find(buffer_name) != end(resource_names) ||
|
|
block_names.find(buffer_name) != end(block_names))
|
|
{
|
|
buffer_name = get_block_fallback_name(var.self);
|
|
}
|
|
|
|
add_variable(block_names, resource_names, buffer_name);
|
|
|
|
// If for some reason buffer_name is an illegal name, make a final fallback to a workaround name.
|
|
// This cannot conflict with anything else, so we're safe now.
|
|
if (buffer_name.empty())
|
|
buffer_name = join("_", get<SPIRType>(var.basetype).self, "_", var.self);
|
|
|
|
uint32_t failed_index = 0;
|
|
if (buffer_is_packing_standard(type, BufferPackingHLSLCbufferPackOffset, &failed_index))
|
|
set_extended_decoration(type.self, SPIRVCrossDecorationExplicitOffset);
|
|
else
|
|
{
|
|
SPIRV_CROSS_THROW(join("cbuffer ID ", var.self, " (name: ", buffer_name, "), member index ",
|
|
failed_index, " (name: ", to_member_name(type, failed_index),
|
|
") cannot be expressed with either HLSL packing layout or packoffset."));
|
|
}
|
|
|
|
block_names.insert(buffer_name);
|
|
|
|
// Save for post-reflection later.
|
|
declared_block_names[var.self] = buffer_name;
|
|
|
|
type.member_name_cache.clear();
|
|
// var.self can be used as a backup name for the block name,
|
|
// so we need to make sure we don't disturb the name here on a recompile.
|
|
// It will need to be reset if we have to recompile.
|
|
preserve_alias_on_reset(var.self);
|
|
add_resource_name(var.self);
|
|
statement("cbuffer ", buffer_name, to_resource_binding(var));
|
|
begin_scope();
|
|
|
|
uint32_t i = 0;
|
|
for (auto &member : type.member_types)
|
|
{
|
|
add_member_name(type, i);
|
|
auto backup_name = get_member_name(type.self, i);
|
|
auto member_name = to_member_name(type, i);
|
|
set_member_name(type.self, i, sanitize_underscores(join(to_name(var.self), "_", member_name)));
|
|
emit_struct_member(type, member, i, "");
|
|
set_member_name(type.self, i, backup_name);
|
|
i++;
|
|
}
|
|
|
|
end_scope_decl();
|
|
statement("");
|
|
}
|
|
else
|
|
{
|
|
if (hlsl_options.shader_model < 51)
|
|
SPIRV_CROSS_THROW(
|
|
"Need ConstantBuffer<T> to use arrays of UBOs, but this is only supported in SM 5.1.");
|
|
|
|
add_resource_name(type.self);
|
|
add_resource_name(var.self);
|
|
|
|
// ConstantBuffer<T> does not support packoffset, so it is unuseable unless everything aligns as we expect.
|
|
uint32_t failed_index = 0;
|
|
if (!buffer_is_packing_standard(type, BufferPackingHLSLCbuffer, &failed_index))
|
|
{
|
|
SPIRV_CROSS_THROW(join("HLSL ConstantBuffer<T> ID ", var.self, " (name: ", to_name(type.self),
|
|
"), member index ", failed_index, " (name: ", to_member_name(type, failed_index),
|
|
") cannot be expressed with normal HLSL packing rules."));
|
|
}
|
|
|
|
emit_struct(get<SPIRType>(type.self));
|
|
statement("ConstantBuffer<", to_name(type.self), "> ", to_name(var.self), type_to_array_glsl(type),
|
|
to_resource_binding(var), ";");
|
|
}
|
|
}
|
|
}
|
|
|
|
void CompilerHLSL::emit_push_constant_block(const SPIRVariable &var)
|
|
{
|
|
if (root_constants_layout.empty())
|
|
{
|
|
emit_buffer_block(var);
|
|
}
|
|
else
|
|
{
|
|
for (const auto &layout : root_constants_layout)
|
|
{
|
|
auto &type = get<SPIRType>(var.basetype);
|
|
|
|
uint32_t failed_index = 0;
|
|
if (buffer_is_packing_standard(type, BufferPackingHLSLCbufferPackOffset, &failed_index, layout.start,
|
|
layout.end))
|
|
set_extended_decoration(type.self, SPIRVCrossDecorationExplicitOffset);
|
|
else
|
|
{
|
|
SPIRV_CROSS_THROW(join("Root constant cbuffer ID ", var.self, " (name: ", to_name(type.self), ")",
|
|
", member index ", failed_index, " (name: ", to_member_name(type, failed_index),
|
|
") cannot be expressed with either HLSL packing layout or packoffset."));
|
|
}
|
|
|
|
flattened_structs.insert(var.self);
|
|
type.member_name_cache.clear();
|
|
add_resource_name(var.self);
|
|
auto &memb = ir.meta[type.self].members;
|
|
|
|
statement("cbuffer SPIRV_CROSS_RootConstant_", to_name(var.self),
|
|
to_resource_register(HLSL_BINDING_AUTO_PUSH_CONSTANT_BIT, 'b', layout.binding, layout.space));
|
|
begin_scope();
|
|
|
|
// Index of the next field in the generated root constant constant buffer
|
|
auto constant_index = 0u;
|
|
|
|
// Iterate over all member of the push constant and check which of the fields
|
|
// fit into the given root constant layout.
|
|
for (auto i = 0u; i < memb.size(); i++)
|
|
{
|
|
const auto offset = memb[i].offset;
|
|
if (layout.start <= offset && offset < layout.end)
|
|
{
|
|
const auto &member = type.member_types[i];
|
|
|
|
add_member_name(type, constant_index);
|
|
auto backup_name = get_member_name(type.self, i);
|
|
auto member_name = to_member_name(type, i);
|
|
set_member_name(type.self, constant_index,
|
|
sanitize_underscores(join(to_name(var.self), "_", member_name)));
|
|
emit_struct_member(type, member, i, "", layout.start);
|
|
set_member_name(type.self, constant_index, backup_name);
|
|
|
|
constant_index++;
|
|
}
|
|
}
|
|
|
|
end_scope_decl();
|
|
}
|
|
}
|
|
}
|
|
|
|
string CompilerHLSL::to_sampler_expression(uint32_t id)
|
|
{
|
|
auto expr = join("_", to_expression(id));
|
|
auto index = expr.find_first_of('[');
|
|
if (index == string::npos)
|
|
{
|
|
return expr + "_sampler";
|
|
}
|
|
else
|
|
{
|
|
// We have an expression like _ident[array], so we cannot tack on _sampler, insert it inside the string instead.
|
|
return expr.insert(index, "_sampler");
|
|
}
|
|
}
|
|
|
|
void CompilerHLSL::emit_sampled_image_op(uint32_t result_type, uint32_t result_id, uint32_t image_id, uint32_t samp_id)
|
|
{
|
|
if (hlsl_options.shader_model >= 40 && combined_image_samplers.empty())
|
|
{
|
|
set<SPIRCombinedImageSampler>(result_id, result_type, image_id, samp_id);
|
|
}
|
|
else
|
|
{
|
|
// Make sure to suppress usage tracking. It is illegal to create temporaries of opaque types.
|
|
emit_op(result_type, result_id, to_combined_image_sampler(image_id, samp_id), true, true);
|
|
}
|
|
}
|
|
|
|
string CompilerHLSL::to_func_call_arg(const SPIRFunction::Parameter &arg, uint32_t id)
|
|
{
|
|
string arg_str = CompilerGLSL::to_func_call_arg(arg, id);
|
|
|
|
if (hlsl_options.shader_model <= 30)
|
|
return arg_str;
|
|
|
|
// Manufacture automatic sampler arg if the arg is a SampledImage texture and we're in modern HLSL.
|
|
auto &type = expression_type(id);
|
|
|
|
// We don't have to consider combined image samplers here via OpSampledImage because
|
|
// those variables cannot be passed as arguments to functions.
|
|
// Only global SampledImage variables may be used as arguments.
|
|
if (type.basetype == SPIRType::SampledImage && type.image.dim != DimBuffer)
|
|
arg_str += ", " + to_sampler_expression(id);
|
|
|
|
return arg_str;
|
|
}
|
|
|
|
void CompilerHLSL::emit_function_prototype(SPIRFunction &func, const Bitset &return_flags)
|
|
{
|
|
if (func.self != ir.default_entry_point)
|
|
add_function_overload(func);
|
|
|
|
auto &execution = get_entry_point();
|
|
// Avoid shadow declarations.
|
|
local_variable_names = resource_names;
|
|
|
|
string decl;
|
|
|
|
auto &type = get<SPIRType>(func.return_type);
|
|
if (type.array.empty())
|
|
{
|
|
decl += flags_to_qualifiers_glsl(type, return_flags);
|
|
decl += type_to_glsl(type);
|
|
decl += " ";
|
|
}
|
|
else
|
|
{
|
|
// We cannot return arrays in HLSL, so "return" through an out variable.
|
|
decl = "void ";
|
|
}
|
|
|
|
if (func.self == ir.default_entry_point)
|
|
{
|
|
if (execution.model == ExecutionModelVertex)
|
|
decl += "vert_main";
|
|
else if (execution.model == ExecutionModelFragment)
|
|
decl += "frag_main";
|
|
else if (execution.model == ExecutionModelGLCompute)
|
|
decl += "comp_main";
|
|
else
|
|
SPIRV_CROSS_THROW("Unsupported execution model.");
|
|
processing_entry_point = true;
|
|
}
|
|
else
|
|
decl += to_name(func.self);
|
|
|
|
decl += "(";
|
|
SmallVector<string> arglist;
|
|
|
|
if (!type.array.empty())
|
|
{
|
|
// Fake array returns by writing to an out array instead.
|
|
string out_argument;
|
|
out_argument += "out ";
|
|
out_argument += type_to_glsl(type);
|
|
out_argument += " ";
|
|
out_argument += "SPIRV_Cross_return_value";
|
|
out_argument += type_to_array_glsl(type);
|
|
arglist.push_back(move(out_argument));
|
|
}
|
|
|
|
for (auto &arg : func.arguments)
|
|
{
|
|
// Do not pass in separate images or samplers if we're remapping
|
|
// to combined image samplers.
|
|
if (skip_argument(arg.id))
|
|
continue;
|
|
|
|
// Might change the variable name if it already exists in this function.
|
|
// SPIRV OpName doesn't have any semantic effect, so it's valid for an implementation
|
|
// to use same name for variables.
|
|
// Since we want to make the GLSL debuggable and somewhat sane, use fallback names for variables which are duplicates.
|
|
add_local_variable_name(arg.id);
|
|
|
|
arglist.push_back(argument_decl(arg));
|
|
|
|
// Flatten a combined sampler to two separate arguments in modern HLSL.
|
|
auto &arg_type = get<SPIRType>(arg.type);
|
|
if (hlsl_options.shader_model > 30 && arg_type.basetype == SPIRType::SampledImage &&
|
|
arg_type.image.dim != DimBuffer)
|
|
{
|
|
// Manufacture automatic sampler arg for SampledImage texture
|
|
arglist.push_back(join(image_is_comparison(arg_type, arg.id) ? "SamplerComparisonState " : "SamplerState ",
|
|
to_sampler_expression(arg.id), type_to_array_glsl(arg_type)));
|
|
}
|
|
|
|
// Hold a pointer to the parameter so we can invalidate the readonly field if needed.
|
|
auto *var = maybe_get<SPIRVariable>(arg.id);
|
|
if (var)
|
|
var->parameter = &arg;
|
|
}
|
|
|
|
for (auto &arg : func.shadow_arguments)
|
|
{
|
|
// Might change the variable name if it already exists in this function.
|
|
// SPIRV OpName doesn't have any semantic effect, so it's valid for an implementation
|
|
// to use same name for variables.
|
|
// Since we want to make the GLSL debuggable and somewhat sane, use fallback names for variables which are duplicates.
|
|
add_local_variable_name(arg.id);
|
|
|
|
arglist.push_back(argument_decl(arg));
|
|
|
|
// Hold a pointer to the parameter so we can invalidate the readonly field if needed.
|
|
auto *var = maybe_get<SPIRVariable>(arg.id);
|
|
if (var)
|
|
var->parameter = &arg;
|
|
}
|
|
|
|
decl += merge(arglist);
|
|
decl += ")";
|
|
statement(decl);
|
|
}
|
|
|
|
void CompilerHLSL::emit_hlsl_entry_point()
|
|
{
|
|
SmallVector<string> arguments;
|
|
|
|
if (require_input)
|
|
arguments.push_back("SPIRV_Cross_Input stage_input");
|
|
|
|
// Add I/O blocks as separate arguments with appropriate storage qualifier.
|
|
ir.for_each_typed_id<SPIRVariable>([&](uint32_t, SPIRVariable &var) {
|
|
auto &type = this->get<SPIRType>(var.basetype);
|
|
bool block = ir.meta[type.self].decoration.decoration_flags.get(DecorationBlock);
|
|
|
|
if (var.storage != StorageClassInput && var.storage != StorageClassOutput)
|
|
return;
|
|
|
|
if (block && !is_builtin_variable(var) && interface_variable_exists_in_entry_point(var.self))
|
|
{
|
|
if (var.storage == StorageClassInput)
|
|
{
|
|
arguments.push_back(join("in ", variable_decl(type, join("stage_input", to_name(var.self)))));
|
|
}
|
|
else if (var.storage == StorageClassOutput)
|
|
{
|
|
arguments.push_back(join("out ", variable_decl(type, join("stage_output", to_name(var.self)))));
|
|
}
|
|
}
|
|
});
|
|
|
|
auto &execution = get_entry_point();
|
|
|
|
switch (execution.model)
|
|
{
|
|
case ExecutionModelGLCompute:
|
|
{
|
|
SpecializationConstant wg_x, wg_y, wg_z;
|
|
get_work_group_size_specialization_constants(wg_x, wg_y, wg_z);
|
|
|
|
uint32_t x = execution.workgroup_size.x;
|
|
uint32_t y = execution.workgroup_size.y;
|
|
uint32_t z = execution.workgroup_size.z;
|
|
|
|
auto x_expr = wg_x.id ? get<SPIRConstant>(wg_x.id).specialization_constant_macro_name : to_string(x);
|
|
auto y_expr = wg_y.id ? get<SPIRConstant>(wg_y.id).specialization_constant_macro_name : to_string(y);
|
|
auto z_expr = wg_z.id ? get<SPIRConstant>(wg_z.id).specialization_constant_macro_name : to_string(z);
|
|
|
|
statement("[numthreads(", x_expr, ", ", y_expr, ", ", z_expr, ")]");
|
|
break;
|
|
}
|
|
case ExecutionModelFragment:
|
|
if (execution.flags.get(ExecutionModeEarlyFragmentTests))
|
|
statement("[earlydepthstencil]");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
statement(require_output ? "SPIRV_Cross_Output " : "void ", "main(", merge(arguments), ")");
|
|
begin_scope();
|
|
bool legacy = hlsl_options.shader_model <= 30;
|
|
|
|
// Copy builtins from entry point arguments to globals.
|
|
active_input_builtins.for_each_bit([&](uint32_t i) {
|
|
auto builtin = builtin_to_glsl(static_cast<BuiltIn>(i), StorageClassInput);
|
|
switch (static_cast<BuiltIn>(i))
|
|
{
|
|
case BuiltInFragCoord:
|
|
// VPOS in D3D9 is sampled at integer locations, apply half-pixel offset to be consistent.
|
|
// TODO: Do we need an option here? Any reason why a D3D9 shader would be used
|
|
// on a D3D10+ system with a different rasterization config?
|
|
if (legacy)
|
|
statement(builtin, " = stage_input.", builtin, " + float4(0.5f, 0.5f, 0.0f, 0.0f);");
|
|
else
|
|
statement(builtin, " = stage_input.", builtin, ";");
|
|
break;
|
|
|
|
case BuiltInVertexId:
|
|
case BuiltInVertexIndex:
|
|
case BuiltInInstanceIndex:
|
|
// D3D semantics are uint, but shader wants int.
|
|
if (hlsl_options.support_nonzero_base_vertex_base_instance)
|
|
{
|
|
if (static_cast<BuiltIn>(i) == BuiltInInstanceIndex)
|
|
statement(builtin, " = int(stage_input.", builtin, ") + SPIRV_Cross_BaseInstance;");
|
|
else
|
|
statement(builtin, " = int(stage_input.", builtin, ") + SPIRV_Cross_BaseVertex;");
|
|
}
|
|
else
|
|
statement(builtin, " = int(stage_input.", builtin, ");");
|
|
break;
|
|
|
|
case BuiltInInstanceId:
|
|
// D3D semantics are uint, but shader wants int.
|
|
statement(builtin, " = int(stage_input.", builtin, ");");
|
|
break;
|
|
|
|
case BuiltInNumWorkgroups:
|
|
case BuiltInPointCoord:
|
|
case BuiltInSubgroupSize:
|
|
case BuiltInSubgroupLocalInvocationId:
|
|
break;
|
|
|
|
case BuiltInSubgroupEqMask:
|
|
// Emulate these ...
|
|
// No 64-bit in HLSL, so have to do it in 32-bit and unroll.
|
|
statement("gl_SubgroupEqMask = 1u << (WaveGetLaneIndex() - uint4(0, 32, 64, 96));");
|
|
statement("if (WaveGetLaneIndex() >= 32) gl_SubgroupEqMask.x = 0;");
|
|
statement("if (WaveGetLaneIndex() >= 64 || WaveGetLaneIndex() < 32) gl_SubgroupEqMask.y = 0;");
|
|
statement("if (WaveGetLaneIndex() >= 96 || WaveGetLaneIndex() < 64) gl_SubgroupEqMask.z = 0;");
|
|
statement("if (WaveGetLaneIndex() < 96) gl_SubgroupEqMask.w = 0;");
|
|
break;
|
|
|
|
case BuiltInSubgroupGeMask:
|
|
// Emulate these ...
|
|
// No 64-bit in HLSL, so have to do it in 32-bit and unroll.
|
|
statement("gl_SubgroupGeMask = ~((1u << (WaveGetLaneIndex() - uint4(0, 32, 64, 96))) - 1u);");
|
|
statement("if (WaveGetLaneIndex() >= 32) gl_SubgroupGeMask.x = 0u;");
|
|
statement("if (WaveGetLaneIndex() >= 64) gl_SubgroupGeMask.y = 0u;");
|
|
statement("if (WaveGetLaneIndex() >= 96) gl_SubgroupGeMask.z = 0u;");
|
|
statement("if (WaveGetLaneIndex() < 32) gl_SubgroupGeMask.y = ~0u;");
|
|
statement("if (WaveGetLaneIndex() < 64) gl_SubgroupGeMask.z = ~0u;");
|
|
statement("if (WaveGetLaneIndex() < 96) gl_SubgroupGeMask.w = ~0u;");
|
|
break;
|
|
|
|
case BuiltInSubgroupGtMask:
|
|
// Emulate these ...
|
|
// No 64-bit in HLSL, so have to do it in 32-bit and unroll.
|
|
statement("uint gt_lane_index = WaveGetLaneIndex() + 1;");
|
|
statement("gl_SubgroupGtMask = ~((1u << (gt_lane_index - uint4(0, 32, 64, 96))) - 1u);");
|
|
statement("if (gt_lane_index >= 32) gl_SubgroupGtMask.x = 0u;");
|
|
statement("if (gt_lane_index >= 64) gl_SubgroupGtMask.y = 0u;");
|
|
statement("if (gt_lane_index >= 96) gl_SubgroupGtMask.z = 0u;");
|
|
statement("if (gt_lane_index >= 128) gl_SubgroupGtMask.w = 0u;");
|
|
statement("if (gt_lane_index < 32) gl_SubgroupGtMask.y = ~0u;");
|
|
statement("if (gt_lane_index < 64) gl_SubgroupGtMask.z = ~0u;");
|
|
statement("if (gt_lane_index < 96) gl_SubgroupGtMask.w = ~0u;");
|
|
break;
|
|
|
|
case BuiltInSubgroupLeMask:
|
|
// Emulate these ...
|
|
// No 64-bit in HLSL, so have to do it in 32-bit and unroll.
|
|
statement("uint le_lane_index = WaveGetLaneIndex() + 1;");
|
|
statement("gl_SubgroupLeMask = (1u << (le_lane_index - uint4(0, 32, 64, 96))) - 1u;");
|
|
statement("if (le_lane_index >= 32) gl_SubgroupLeMask.x = ~0u;");
|
|
statement("if (le_lane_index >= 64) gl_SubgroupLeMask.y = ~0u;");
|
|
statement("if (le_lane_index >= 96) gl_SubgroupLeMask.z = ~0u;");
|
|
statement("if (le_lane_index >= 128) gl_SubgroupLeMask.w = ~0u;");
|
|
statement("if (le_lane_index < 32) gl_SubgroupLeMask.y = 0u;");
|
|
statement("if (le_lane_index < 64) gl_SubgroupLeMask.z = 0u;");
|
|
statement("if (le_lane_index < 96) gl_SubgroupLeMask.w = 0u;");
|
|
break;
|
|
|
|
case BuiltInSubgroupLtMask:
|
|
// Emulate these ...
|
|
// No 64-bit in HLSL, so have to do it in 32-bit and unroll.
|
|
statement("gl_SubgroupLtMask = (1u << (WaveGetLaneIndex() - uint4(0, 32, 64, 96))) - 1u;");
|
|
statement("if (WaveGetLaneIndex() >= 32) gl_SubgroupLtMask.x = ~0u;");
|
|
statement("if (WaveGetLaneIndex() >= 64) gl_SubgroupLtMask.y = ~0u;");
|
|
statement("if (WaveGetLaneIndex() >= 96) gl_SubgroupLtMask.z = ~0u;");
|
|
statement("if (WaveGetLaneIndex() < 32) gl_SubgroupLtMask.y = 0u;");
|
|
statement("if (WaveGetLaneIndex() < 64) gl_SubgroupLtMask.z = 0u;");
|
|
statement("if (WaveGetLaneIndex() < 96) gl_SubgroupLtMask.w = 0u;");
|
|
break;
|
|
|
|
case BuiltInClipDistance:
|
|
for (uint32_t clip = 0; clip < clip_distance_count; clip++)
|
|
statement("gl_ClipDistance[", clip, "] = stage_input.gl_ClipDistance", clip / 4, ".", "xyzw"[clip & 3],
|
|
";");
|
|
break;
|
|
|
|
case BuiltInCullDistance:
|
|
for (uint32_t cull = 0; cull < cull_distance_count; cull++)
|
|
statement("gl_CullDistance[", cull, "] = stage_input.gl_CullDistance", cull / 4, ".", "xyzw"[cull & 3],
|
|
";");
|
|
break;
|
|
|
|
default:
|
|
statement(builtin, " = stage_input.", builtin, ";");
|
|
break;
|
|
}
|
|
});
|
|
|
|
// Copy from stage input struct to globals.
|
|
ir.for_each_typed_id<SPIRVariable>([&](uint32_t, SPIRVariable &var) {
|
|
auto &type = this->get<SPIRType>(var.basetype);
|
|
bool block = ir.meta[type.self].decoration.decoration_flags.get(DecorationBlock);
|
|
|
|
if (var.storage != StorageClassInput)
|
|
return;
|
|
|
|
bool need_matrix_unroll = var.storage == StorageClassInput && execution.model == ExecutionModelVertex;
|
|
|
|
if (!block && !var.remapped_variable && type.pointer && !is_builtin_variable(var) &&
|
|
interface_variable_exists_in_entry_point(var.self))
|
|
{
|
|
auto name = to_name(var.self);
|
|
auto &mtype = this->get<SPIRType>(var.basetype);
|
|
if (need_matrix_unroll && mtype.columns > 1)
|
|
{
|
|
// Unroll matrices.
|
|
for (uint32_t col = 0; col < mtype.columns; col++)
|
|
statement(name, "[", col, "] = stage_input.", name, "_", col, ";");
|
|
}
|
|
else
|
|
{
|
|
statement(name, " = stage_input.", name, ";");
|
|
}
|
|
}
|
|
|
|
// I/O blocks don't use the common stage input/output struct, but separate outputs.
|
|
if (block && !is_builtin_variable(var) && interface_variable_exists_in_entry_point(var.self))
|
|
{
|
|
auto name = to_name(var.self);
|
|
statement(name, " = stage_input", name, ";");
|
|
}
|
|
});
|
|
|
|
// Run the shader.
|
|
if (execution.model == ExecutionModelVertex)
|
|
statement("vert_main();");
|
|
else if (execution.model == ExecutionModelFragment)
|
|
statement("frag_main();");
|
|
else if (execution.model == ExecutionModelGLCompute)
|
|
statement("comp_main();");
|
|
else
|
|
SPIRV_CROSS_THROW("Unsupported shader stage.");
|
|
|
|
// Copy block outputs.
|
|
ir.for_each_typed_id<SPIRVariable>([&](uint32_t, SPIRVariable &var) {
|
|
auto &type = this->get<SPIRType>(var.basetype);
|
|
bool block = ir.meta[type.self].decoration.decoration_flags.get(DecorationBlock);
|
|
|
|
if (var.storage != StorageClassOutput)
|
|
return;
|
|
|
|
// I/O blocks don't use the common stage input/output struct, but separate outputs.
|
|
if (block && !is_builtin_variable(var) && interface_variable_exists_in_entry_point(var.self))
|
|
{
|
|
auto name = to_name(var.self);
|
|
statement("stage_output", name, " = ", name, ";");
|
|
}
|
|
});
|
|
|
|
// Copy stage outputs.
|
|
if (require_output)
|
|
{
|
|
statement("SPIRV_Cross_Output stage_output;");
|
|
|
|
// Copy builtins from globals to return struct.
|
|
active_output_builtins.for_each_bit([&](uint32_t i) {
|
|
// PointSize doesn't exist in HLSL.
|
|
if (i == BuiltInPointSize)
|
|
return;
|
|
|
|
switch (static_cast<BuiltIn>(i))
|
|
{
|
|
case BuiltInClipDistance:
|
|
for (uint32_t clip = 0; clip < clip_distance_count; clip++)
|
|
statement("stage_output.gl_ClipDistance", clip / 4, ".", "xyzw"[clip & 3], " = gl_ClipDistance[",
|
|
clip, "];");
|
|
break;
|
|
|
|
case BuiltInCullDistance:
|
|
for (uint32_t cull = 0; cull < cull_distance_count; cull++)
|
|
statement("stage_output.gl_CullDistance", cull / 4, ".", "xyzw"[cull & 3], " = gl_CullDistance[",
|
|
cull, "];");
|
|
break;
|
|
|
|
default:
|
|
{
|
|
auto builtin_expr = builtin_to_glsl(static_cast<BuiltIn>(i), StorageClassOutput);
|
|
statement("stage_output.", builtin_expr, " = ", builtin_expr, ";");
|
|
break;
|
|
}
|
|
}
|
|
});
|
|
|
|
ir.for_each_typed_id<SPIRVariable>([&](uint32_t, SPIRVariable &var) {
|
|
auto &type = this->get<SPIRType>(var.basetype);
|
|
bool block = ir.meta[type.self].decoration.decoration_flags.get(DecorationBlock);
|
|
|
|
if (var.storage != StorageClassOutput)
|
|
return;
|
|
|
|
if (!block && var.storage != StorageClassFunction && !var.remapped_variable && type.pointer &&
|
|
!is_builtin_variable(var) && interface_variable_exists_in_entry_point(var.self))
|
|
{
|
|
auto name = to_name(var.self);
|
|
|
|
if (legacy && execution.model == ExecutionModelFragment)
|
|
{
|
|
string output_filler;
|
|
for (uint32_t size = type.vecsize; size < 4; ++size)
|
|
output_filler += ", 0.0";
|
|
|
|
statement("stage_output.", name, " = float4(", name, output_filler, ");");
|
|
}
|
|
else
|
|
{
|
|
statement("stage_output.", name, " = ", name, ";");
|
|
}
|
|
}
|
|
});
|
|
|
|
statement("return stage_output;");
|
|
}
|
|
|
|
end_scope();
|
|
}
|
|
|
|
void CompilerHLSL::emit_fixup()
|
|
{
|
|
if (get_entry_point().model == ExecutionModelVertex)
|
|
{
|
|
// Do various mangling on the gl_Position.
|
|
if (hlsl_options.shader_model <= 30)
|
|
{
|
|
statement("gl_Position.x = gl_Position.x - gl_HalfPixel.x * "
|
|
"gl_Position.w;");
|
|
statement("gl_Position.y = gl_Position.y + gl_HalfPixel.y * "
|
|
"gl_Position.w;");
|
|
}
|
|
|
|
if (options.vertex.flip_vert_y)
|
|
statement("gl_Position.y = -gl_Position.y;");
|
|
if (options.vertex.fixup_clipspace)
|
|
statement("gl_Position.z = (gl_Position.z + gl_Position.w) * 0.5;");
|
|
}
|
|
}
|
|
|
|
void CompilerHLSL::emit_texture_op(const Instruction &i)
|
|
{
|
|
auto *ops = stream(i);
|
|
auto op = static_cast<Op>(i.op);
|
|
uint32_t length = i.length;
|
|
|
|
SmallVector<uint32_t> inherited_expressions;
|
|
|
|
uint32_t result_type = ops[0];
|
|
uint32_t id = ops[1];
|
|
VariableID img = ops[2];
|
|
uint32_t coord = ops[3];
|
|
uint32_t dref = 0;
|
|
uint32_t comp = 0;
|
|
bool gather = false;
|
|
bool proj = false;
|
|
const uint32_t *opt = nullptr;
|
|
auto *combined_image = maybe_get<SPIRCombinedImageSampler>(img);
|
|
auto img_expr = to_expression(combined_image ? combined_image->image : img);
|
|
|
|
inherited_expressions.push_back(coord);
|
|
|
|
// Make sure non-uniform decoration is back-propagated to where it needs to be.
|
|
if (has_decoration(img, DecorationNonUniformEXT))
|
|
propagate_nonuniform_qualifier(img);
|
|
|
|
switch (op)
|
|
{
|
|
case OpImageSampleDrefImplicitLod:
|
|
case OpImageSampleDrefExplicitLod:
|
|
dref = ops[4];
|
|
opt = &ops[5];
|
|
length -= 5;
|
|
break;
|
|
|
|
case OpImageSampleProjDrefImplicitLod:
|
|
case OpImageSampleProjDrefExplicitLod:
|
|
dref = ops[4];
|
|
proj = true;
|
|
opt = &ops[5];
|
|
length -= 5;
|
|
break;
|
|
|
|
case OpImageDrefGather:
|
|
dref = ops[4];
|
|
opt = &ops[5];
|
|
gather = true;
|
|
length -= 5;
|
|
break;
|
|
|
|
case OpImageGather:
|
|
comp = ops[4];
|
|
opt = &ops[5];
|
|
gather = true;
|
|
length -= 5;
|
|
break;
|
|
|
|
case OpImageSampleProjImplicitLod:
|
|
case OpImageSampleProjExplicitLod:
|
|
opt = &ops[4];
|
|
length -= 4;
|
|
proj = true;
|
|
break;
|
|
|
|
case OpImageQueryLod:
|
|
opt = &ops[4];
|
|
length -= 4;
|
|
break;
|
|
|
|
default:
|
|
opt = &ops[4];
|
|
length -= 4;
|
|
break;
|
|
}
|
|
|
|
auto &imgtype = expression_type(img);
|
|
uint32_t coord_components = 0;
|
|
switch (imgtype.image.dim)
|
|
{
|
|
case spv::Dim1D:
|
|
coord_components = 1;
|
|
break;
|
|
case spv::Dim2D:
|
|
coord_components = 2;
|
|
break;
|
|
case spv::Dim3D:
|
|
coord_components = 3;
|
|
break;
|
|
case spv::DimCube:
|
|
coord_components = 3;
|
|
break;
|
|
case spv::DimBuffer:
|
|
coord_components = 1;
|
|
break;
|
|
default:
|
|
coord_components = 2;
|
|
break;
|
|
}
|
|
|
|
if (dref)
|
|
inherited_expressions.push_back(dref);
|
|
|
|
if (imgtype.image.arrayed)
|
|
coord_components++;
|
|
|
|
uint32_t bias = 0;
|
|
uint32_t lod = 0;
|
|
uint32_t grad_x = 0;
|
|
uint32_t grad_y = 0;
|
|
uint32_t coffset = 0;
|
|
uint32_t offset = 0;
|
|
uint32_t coffsets = 0;
|
|
uint32_t sample = 0;
|
|
uint32_t minlod = 0;
|
|
uint32_t flags = 0;
|
|
|
|
if (length)
|
|
{
|
|
flags = opt[0];
|
|
opt++;
|
|
length--;
|
|
}
|
|
|
|
auto test = [&](uint32_t &v, uint32_t flag) {
|
|
if (length && (flags & flag))
|
|
{
|
|
v = *opt++;
|
|
inherited_expressions.push_back(v);
|
|
length--;
|
|
}
|
|
};
|
|
|
|
test(bias, ImageOperandsBiasMask);
|
|
test(lod, ImageOperandsLodMask);
|
|
test(grad_x, ImageOperandsGradMask);
|
|
test(grad_y, ImageOperandsGradMask);
|
|
test(coffset, ImageOperandsConstOffsetMask);
|
|
test(offset, ImageOperandsOffsetMask);
|
|
test(coffsets, ImageOperandsConstOffsetsMask);
|
|
test(sample, ImageOperandsSampleMask);
|
|
test(minlod, ImageOperandsMinLodMask);
|
|
|
|
string expr;
|
|
string texop;
|
|
|
|
if (minlod != 0)
|
|
SPIRV_CROSS_THROW("MinLod texture operand not supported in HLSL.");
|
|
|
|
if (op == OpImageFetch)
|
|
{
|
|
if (hlsl_options.shader_model < 40)
|
|
{
|
|
SPIRV_CROSS_THROW("texelFetch is not supported in HLSL shader model 2/3.");
|
|
}
|
|
texop += img_expr;
|
|
texop += ".Load";
|
|
}
|
|
else if (op == OpImageQueryLod)
|
|
{
|
|
texop += img_expr;
|
|
texop += ".CalculateLevelOfDetail";
|
|
}
|
|
else
|
|
{
|
|
auto &imgformat = get<SPIRType>(imgtype.image.type);
|
|
if (imgformat.basetype != SPIRType::Float)
|
|
{
|
|
SPIRV_CROSS_THROW("Sampling non-float textures is not supported in HLSL.");
|
|
}
|
|
|
|
if (hlsl_options.shader_model >= 40)
|
|
{
|
|
texop += img_expr;
|
|
|
|
if (image_is_comparison(imgtype, img))
|
|
{
|
|
if (gather)
|
|
{
|
|
SPIRV_CROSS_THROW("GatherCmp does not exist in HLSL.");
|
|
}
|
|
else if (lod || grad_x || grad_y)
|
|
{
|
|
// Assume we want a fixed level, and the only thing we can get in HLSL is SampleCmpLevelZero.
|
|
texop += ".SampleCmpLevelZero";
|
|
}
|
|
else
|
|
texop += ".SampleCmp";
|
|
}
|
|
else if (gather)
|
|
{
|
|
uint32_t comp_num = get<SPIRConstant>(comp).scalar();
|
|
if (hlsl_options.shader_model >= 50)
|
|
{
|
|
switch (comp_num)
|
|
{
|
|
case 0:
|
|
texop += ".GatherRed";
|
|
break;
|
|
case 1:
|
|
texop += ".GatherGreen";
|
|
break;
|
|
case 2:
|
|
texop += ".GatherBlue";
|
|
break;
|
|
case 3:
|
|
texop += ".GatherAlpha";
|
|
break;
|
|
default:
|
|
SPIRV_CROSS_THROW("Invalid component.");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (comp_num == 0)
|
|
texop += ".Gather";
|
|
else
|
|
SPIRV_CROSS_THROW("HLSL shader model 4 can only gather from the red component.");
|
|
}
|
|
}
|
|
else if (bias)
|
|
texop += ".SampleBias";
|
|
else if (grad_x || grad_y)
|
|
texop += ".SampleGrad";
|
|
else if (lod)
|
|
texop += ".SampleLevel";
|
|
else
|
|
texop += ".Sample";
|
|
}
|
|
else
|
|
{
|
|
switch (imgtype.image.dim)
|
|
{
|
|
case Dim1D:
|
|
texop += "tex1D";
|
|
break;
|
|
case Dim2D:
|
|
texop += "tex2D";
|
|
break;
|
|
case Dim3D:
|
|
texop += "tex3D";
|
|
break;
|
|
case DimCube:
|
|
texop += "texCUBE";
|
|
break;
|
|
case DimRect:
|
|
case DimBuffer:
|
|
case DimSubpassData:
|
|
SPIRV_CROSS_THROW("Buffer texture support is not yet implemented for HLSL"); // TODO
|
|
default:
|
|
SPIRV_CROSS_THROW("Invalid dimension.");
|
|
}
|
|
|
|
if (gather)
|
|
SPIRV_CROSS_THROW("textureGather is not supported in HLSL shader model 2/3.");
|
|
if (offset || coffset)
|
|
SPIRV_CROSS_THROW("textureOffset is not supported in HLSL shader model 2/3.");
|
|
if (proj)
|
|
texop += "proj";
|
|
if (grad_x || grad_y)
|
|
texop += "grad";
|
|
if (lod)
|
|
texop += "lod";
|
|
if (bias)
|
|
texop += "bias";
|
|
}
|
|
}
|
|
|
|
expr += texop;
|
|
expr += "(";
|
|
if (hlsl_options.shader_model < 40)
|
|
{
|
|
if (combined_image)
|
|
SPIRV_CROSS_THROW("Separate images/samplers are not supported in HLSL shader model 2/3.");
|
|
expr += to_expression(img);
|
|
}
|
|
else if (op != OpImageFetch)
|
|
{
|
|
string sampler_expr;
|
|
if (combined_image)
|
|
sampler_expr = to_expression(combined_image->sampler);
|
|
else
|
|
sampler_expr = to_sampler_expression(img);
|
|
expr += sampler_expr;
|
|
}
|
|
|
|
auto swizzle = [](uint32_t comps, uint32_t in_comps) -> const char * {
|
|
if (comps == in_comps)
|
|
return "";
|
|
|
|
switch (comps)
|
|
{
|
|
case 1:
|
|
return ".x";
|
|
case 2:
|
|
return ".xy";
|
|
case 3:
|
|
return ".xyz";
|
|
default:
|
|
return "";
|
|
}
|
|
};
|
|
|
|
bool forward = should_forward(coord);
|
|
|
|
// The IR can give us more components than we need, so chop them off as needed.
|
|
string coord_expr;
|
|
auto &coord_type = expression_type(coord);
|
|
if (coord_components != coord_type.vecsize)
|
|
coord_expr = to_enclosed_expression(coord) + swizzle(coord_components, expression_type(coord).vecsize);
|
|
else
|
|
coord_expr = to_expression(coord);
|
|
|
|
if (proj && hlsl_options.shader_model >= 40) // Legacy HLSL has "proj" operations which do this for us.
|
|
coord_expr = coord_expr + " / " + to_extract_component_expression(coord, coord_components);
|
|
|
|
if (hlsl_options.shader_model < 40 && lod)
|
|
{
|
|
string coord_filler;
|
|
for (uint32_t size = coord_components; size < 3; ++size)
|
|
{
|
|
coord_filler += ", 0.0";
|
|
}
|
|
coord_expr = "float4(" + coord_expr + coord_filler + ", " + to_expression(lod) + ")";
|
|
}
|
|
|
|
if (hlsl_options.shader_model < 40 && bias)
|
|
{
|
|
string coord_filler;
|
|
for (uint32_t size = coord_components; size < 3; ++size)
|
|
{
|
|
coord_filler += ", 0.0";
|
|
}
|
|
coord_expr = "float4(" + coord_expr + coord_filler + ", " + to_expression(bias) + ")";
|
|
}
|
|
|
|
if (op == OpImageFetch)
|
|
{
|
|
if (imgtype.image.dim != DimBuffer && !imgtype.image.ms)
|
|
coord_expr =
|
|
join("int", coord_components + 1, "(", coord_expr, ", ", lod ? to_expression(lod) : string("0"), ")");
|
|
}
|
|
else
|
|
expr += ", ";
|
|
expr += coord_expr;
|
|
|
|
if (dref)
|
|
{
|
|
if (hlsl_options.shader_model < 40)
|
|
SPIRV_CROSS_THROW("Legacy HLSL does not support comparison sampling.");
|
|
|
|
forward = forward && should_forward(dref);
|
|
expr += ", ";
|
|
|
|
if (proj)
|
|
expr += to_enclosed_expression(dref) + " / " + to_extract_component_expression(coord, coord_components);
|
|
else
|
|
expr += to_expression(dref);
|
|
}
|
|
|
|
if (!dref && (grad_x || grad_y))
|
|
{
|
|
forward = forward && should_forward(grad_x);
|
|
forward = forward && should_forward(grad_y);
|
|
expr += ", ";
|
|
expr += to_expression(grad_x);
|
|
expr += ", ";
|
|
expr += to_expression(grad_y);
|
|
}
|
|
|
|
if (!dref && lod && hlsl_options.shader_model >= 40 && op != OpImageFetch)
|
|
{
|
|
forward = forward && should_forward(lod);
|
|
expr += ", ";
|
|
expr += to_expression(lod);
|
|
}
|
|
|
|
if (!dref && bias && hlsl_options.shader_model >= 40)
|
|
{
|
|
forward = forward && should_forward(bias);
|
|
expr += ", ";
|
|
expr += to_expression(bias);
|
|
}
|
|
|
|
if (coffset)
|
|
{
|
|
forward = forward && should_forward(coffset);
|
|
expr += ", ";
|
|
expr += to_expression(coffset);
|
|
}
|
|
else if (offset)
|
|
{
|
|
forward = forward && should_forward(offset);
|
|
expr += ", ";
|
|
expr += to_expression(offset);
|
|
}
|
|
|
|
if (sample)
|
|
{
|
|
expr += ", ";
|
|
expr += to_expression(sample);
|
|
}
|
|
|
|
expr += ")";
|
|
|
|
if (op == OpImageQueryLod)
|
|
{
|
|
// This is rather awkward.
|
|
// textureQueryLod returns two values, the "accessed level",
|
|
// as well as the actual LOD lambda.
|
|
// As far as I can tell, there is no way to get the .x component
|
|
// according to GLSL spec, and it depends on the sampler itself.
|
|
// Just assume X == Y, so we will need to splat the result to a float2.
|
|
statement("float _", id, "_tmp = ", expr, ";");
|
|
statement("float2 _", id, " = _", id, "_tmp.xx;");
|
|
set<SPIRExpression>(id, join("_", id), result_type, true);
|
|
}
|
|
else
|
|
{
|
|
emit_op(result_type, id, expr, forward, false);
|
|
}
|
|
|
|
for (auto &inherit : inherited_expressions)
|
|
inherit_expression_dependencies(id, inherit);
|
|
|
|
switch (op)
|
|
{
|
|
case OpImageSampleDrefImplicitLod:
|
|
case OpImageSampleImplicitLod:
|
|
case OpImageSampleProjImplicitLod:
|
|
case OpImageSampleProjDrefImplicitLod:
|
|
register_control_dependent_expression(id);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
string CompilerHLSL::to_resource_binding(const SPIRVariable &var)
|
|
{
|
|
const auto &type = get<SPIRType>(var.basetype);
|
|
|
|
// We can remap push constant blocks, even if they don't have any binding decoration.
|
|
if (type.storage != StorageClassPushConstant && !has_decoration(var.self, DecorationBinding))
|
|
return "";
|
|
|
|
char space = '\0';
|
|
|
|
HLSLBindingFlagBits resource_flags = HLSL_BINDING_AUTO_NONE_BIT;
|
|
|
|
switch (type.basetype)
|
|
{
|
|
case SPIRType::SampledImage:
|
|
space = 't'; // SRV
|
|
resource_flags = HLSL_BINDING_AUTO_SRV_BIT;
|
|
break;
|
|
|
|
case SPIRType::Image:
|
|
if (type.image.sampled == 2 && type.image.dim != DimSubpassData)
|
|
{
|
|
if (has_decoration(var.self, DecorationNonWritable) && hlsl_options.nonwritable_uav_texture_as_srv)
|
|
{
|
|
space = 't'; // SRV
|
|
resource_flags = HLSL_BINDING_AUTO_SRV_BIT;
|
|
}
|
|
else
|
|
{
|
|
space = 'u'; // UAV
|
|
resource_flags = HLSL_BINDING_AUTO_UAV_BIT;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
space = 't'; // SRV
|
|
resource_flags = HLSL_BINDING_AUTO_SRV_BIT;
|
|
}
|
|
break;
|
|
|
|
case SPIRType::Sampler:
|
|
space = 's';
|
|
resource_flags = HLSL_BINDING_AUTO_SAMPLER_BIT;
|
|
break;
|
|
|
|
case SPIRType::Struct:
|
|
{
|
|
auto storage = type.storage;
|
|
if (storage == StorageClassUniform)
|
|
{
|
|
if (has_decoration(type.self, DecorationBufferBlock))
|
|
{
|
|
Bitset flags = ir.get_buffer_block_flags(var);
|
|
bool is_readonly = flags.get(DecorationNonWritable) && !hlsl_options.force_storage_buffer_as_uav;
|
|
space = is_readonly ? 't' : 'u'; // UAV
|
|
resource_flags = is_readonly ? HLSL_BINDING_AUTO_SRV_BIT : HLSL_BINDING_AUTO_UAV_BIT;
|
|
}
|
|
else if (has_decoration(type.self, DecorationBlock))
|
|
{
|
|
space = 'b'; // Constant buffers
|
|
resource_flags = HLSL_BINDING_AUTO_CBV_BIT;
|
|
}
|
|
}
|
|
else if (storage == StorageClassPushConstant)
|
|
{
|
|
space = 'b'; // Constant buffers
|
|
resource_flags = HLSL_BINDING_AUTO_PUSH_CONSTANT_BIT;
|
|
}
|
|
else if (storage == StorageClassStorageBuffer)
|
|
{
|
|
// UAV or SRV depending on readonly flag.
|
|
Bitset flags = ir.get_buffer_block_flags(var);
|
|
bool is_readonly = flags.get(DecorationNonWritable) && !hlsl_options.force_storage_buffer_as_uav;
|
|
space = is_readonly ? 't' : 'u';
|
|
resource_flags = is_readonly ? HLSL_BINDING_AUTO_SRV_BIT : HLSL_BINDING_AUTO_UAV_BIT;
|
|
}
|
|
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (!space)
|
|
return "";
|
|
|
|
uint32_t desc_set =
|
|
resource_flags == HLSL_BINDING_AUTO_PUSH_CONSTANT_BIT ? ResourceBindingPushConstantDescriptorSet : 0u;
|
|
uint32_t binding = resource_flags == HLSL_BINDING_AUTO_PUSH_CONSTANT_BIT ? ResourceBindingPushConstantBinding : 0u;
|
|
|
|
if (has_decoration(var.self, DecorationBinding))
|
|
binding = get_decoration(var.self, DecorationBinding);
|
|
if (has_decoration(var.self, DecorationDescriptorSet))
|
|
desc_set = get_decoration(var.self, DecorationDescriptorSet);
|
|
|
|
return to_resource_register(resource_flags, space, binding, desc_set);
|
|
}
|
|
|
|
string CompilerHLSL::to_resource_binding_sampler(const SPIRVariable &var)
|
|
{
|
|
// For combined image samplers.
|
|
if (!has_decoration(var.self, DecorationBinding))
|
|
return "";
|
|
|
|
return to_resource_register(HLSL_BINDING_AUTO_SAMPLER_BIT, 's', get_decoration(var.self, DecorationBinding),
|
|
get_decoration(var.self, DecorationDescriptorSet));
|
|
}
|
|
|
|
void CompilerHLSL::remap_hlsl_resource_binding(HLSLBindingFlagBits type, uint32_t &desc_set, uint32_t &binding)
|
|
{
|
|
auto itr = resource_bindings.find({ get_execution_model(), desc_set, binding });
|
|
if (itr != end(resource_bindings))
|
|
{
|
|
auto &remap = itr->second;
|
|
remap.second = true;
|
|
|
|
switch (type)
|
|
{
|
|
case HLSL_BINDING_AUTO_PUSH_CONSTANT_BIT:
|
|
case HLSL_BINDING_AUTO_CBV_BIT:
|
|
desc_set = remap.first.cbv.register_space;
|
|
binding = remap.first.cbv.register_binding;
|
|
break;
|
|
|
|
case HLSL_BINDING_AUTO_SRV_BIT:
|
|
desc_set = remap.first.srv.register_space;
|
|
binding = remap.first.srv.register_binding;
|
|
break;
|
|
|
|
case HLSL_BINDING_AUTO_SAMPLER_BIT:
|
|
desc_set = remap.first.sampler.register_space;
|
|
binding = remap.first.sampler.register_binding;
|
|
break;
|
|
|
|
case HLSL_BINDING_AUTO_UAV_BIT:
|
|
desc_set = remap.first.uav.register_space;
|
|
binding = remap.first.uav.register_binding;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
string CompilerHLSL::to_resource_register(HLSLBindingFlagBits flag, char space, uint32_t binding, uint32_t space_set)
|
|
{
|
|
if ((flag & resource_binding_flags) == 0)
|
|
{
|
|
remap_hlsl_resource_binding(flag, space_set, binding);
|
|
|
|
// The push constant block did not have a binding, and there were no remap for it,
|
|
// so, declare without register binding.
|
|
if (flag == HLSL_BINDING_AUTO_PUSH_CONSTANT_BIT && space_set == ResourceBindingPushConstantDescriptorSet)
|
|
return "";
|
|
|
|
if (hlsl_options.shader_model >= 51)
|
|
return join(" : register(", space, binding, ", space", space_set, ")");
|
|
else
|
|
return join(" : register(", space, binding, ")");
|
|
}
|
|
else
|
|
return "";
|
|
}
|
|
|
|
void CompilerHLSL::emit_modern_uniform(const SPIRVariable &var)
|
|
{
|
|
auto &type = get<SPIRType>(var.basetype);
|
|
switch (type.basetype)
|
|
{
|
|
case SPIRType::SampledImage:
|
|
case SPIRType::Image:
|
|
{
|
|
bool is_coherent = false;
|
|
if (type.basetype == SPIRType::Image && type.image.sampled == 2)
|
|
is_coherent = has_decoration(var.self, DecorationCoherent);
|
|
|
|
statement(is_coherent ? "globallycoherent " : "", image_type_hlsl_modern(type, var.self), " ",
|
|
to_name(var.self), type_to_array_glsl(type), to_resource_binding(var), ";");
|
|
|
|
if (type.basetype == SPIRType::SampledImage && type.image.dim != DimBuffer)
|
|
{
|
|
// For combined image samplers, also emit a combined image sampler.
|
|
if (image_is_comparison(type, var.self))
|
|
statement("SamplerComparisonState ", to_sampler_expression(var.self), type_to_array_glsl(type),
|
|
to_resource_binding_sampler(var), ";");
|
|
else
|
|
statement("SamplerState ", to_sampler_expression(var.self), type_to_array_glsl(type),
|
|
to_resource_binding_sampler(var), ";");
|
|
}
|
|
break;
|
|
}
|
|
|
|
case SPIRType::Sampler:
|
|
if (comparison_ids.count(var.self))
|
|
statement("SamplerComparisonState ", to_name(var.self), type_to_array_glsl(type), to_resource_binding(var),
|
|
";");
|
|
else
|
|
statement("SamplerState ", to_name(var.self), type_to_array_glsl(type), to_resource_binding(var), ";");
|
|
break;
|
|
|
|
default:
|
|
statement(variable_decl(var), to_resource_binding(var), ";");
|
|
break;
|
|
}
|
|
}
|
|
|
|
void CompilerHLSL::emit_legacy_uniform(const SPIRVariable &var)
|
|
{
|
|
auto &type = get<SPIRType>(var.basetype);
|
|
switch (type.basetype)
|
|
{
|
|
case SPIRType::Sampler:
|
|
case SPIRType::Image:
|
|
SPIRV_CROSS_THROW("Separate image and samplers not supported in legacy HLSL.");
|
|
|
|
default:
|
|
statement(variable_decl(var), ";");
|
|
break;
|
|
}
|
|
}
|
|
|
|
void CompilerHLSL::emit_uniform(const SPIRVariable &var)
|
|
{
|
|
add_resource_name(var.self);
|
|
if (hlsl_options.shader_model >= 40)
|
|
emit_modern_uniform(var);
|
|
else
|
|
emit_legacy_uniform(var);
|
|
}
|
|
|
|
bool CompilerHLSL::emit_complex_bitcast(uint32_t, uint32_t, uint32_t)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
string CompilerHLSL::bitcast_glsl_op(const SPIRType &out_type, const SPIRType &in_type)
|
|
{
|
|
if (out_type.basetype == SPIRType::UInt && in_type.basetype == SPIRType::Int)
|
|
return type_to_glsl(out_type);
|
|
else if (out_type.basetype == SPIRType::UInt64 && in_type.basetype == SPIRType::Int64)
|
|
return type_to_glsl(out_type);
|
|
else if (out_type.basetype == SPIRType::UInt && in_type.basetype == SPIRType::Float)
|
|
return "asuint";
|
|
else if (out_type.basetype == SPIRType::Int && in_type.basetype == SPIRType::UInt)
|
|
return type_to_glsl(out_type);
|
|
else if (out_type.basetype == SPIRType::Int64 && in_type.basetype == SPIRType::UInt64)
|
|
return type_to_glsl(out_type);
|
|
else if (out_type.basetype == SPIRType::Int && in_type.basetype == SPIRType::Float)
|
|
return "asint";
|
|
else if (out_type.basetype == SPIRType::Float && in_type.basetype == SPIRType::UInt)
|
|
return "asfloat";
|
|
else if (out_type.basetype == SPIRType::Float && in_type.basetype == SPIRType::Int)
|
|
return "asfloat";
|
|
else if (out_type.basetype == SPIRType::Int64 && in_type.basetype == SPIRType::Double)
|
|
SPIRV_CROSS_THROW("Double to Int64 is not supported in HLSL.");
|
|
else if (out_type.basetype == SPIRType::UInt64 && in_type.basetype == SPIRType::Double)
|
|
SPIRV_CROSS_THROW("Double to UInt64 is not supported in HLSL.");
|
|
else if (out_type.basetype == SPIRType::Double && in_type.basetype == SPIRType::Int64)
|
|
return "asdouble";
|
|
else if (out_type.basetype == SPIRType::Double && in_type.basetype == SPIRType::UInt64)
|
|
return "asdouble";
|
|
else if (out_type.basetype == SPIRType::Half && in_type.basetype == SPIRType::UInt && in_type.vecsize == 1)
|
|
{
|
|
if (!requires_explicit_fp16_packing)
|
|
{
|
|
requires_explicit_fp16_packing = true;
|
|
force_recompile();
|
|
}
|
|
return "SPIRV_Cross_unpackFloat2x16";
|
|
}
|
|
else if (out_type.basetype == SPIRType::UInt && in_type.basetype == SPIRType::Half && in_type.vecsize == 2)
|
|
{
|
|
if (!requires_explicit_fp16_packing)
|
|
{
|
|
requires_explicit_fp16_packing = true;
|
|
force_recompile();
|
|
}
|
|
return "SPIRV_Cross_packFloat2x16";
|
|
}
|
|
else
|
|
return "";
|
|
}
|
|
|
|
void CompilerHLSL::emit_glsl_op(uint32_t result_type, uint32_t id, uint32_t eop, const uint32_t *args, uint32_t count)
|
|
{
|
|
auto op = static_cast<GLSLstd450>(eop);
|
|
|
|
// If we need to do implicit bitcasts, make sure we do it with the correct type.
|
|
uint32_t integer_width = get_integer_width_for_glsl_instruction(op, args, count);
|
|
auto int_type = to_signed_basetype(integer_width);
|
|
auto uint_type = to_unsigned_basetype(integer_width);
|
|
|
|
switch (op)
|
|
{
|
|
case GLSLstd450InverseSqrt:
|
|
emit_unary_func_op(result_type, id, args[0], "rsqrt");
|
|
break;
|
|
|
|
case GLSLstd450Fract:
|
|
emit_unary_func_op(result_type, id, args[0], "frac");
|
|
break;
|
|
|
|
case GLSLstd450RoundEven:
|
|
SPIRV_CROSS_THROW("roundEven is not supported on HLSL.");
|
|
|
|
case GLSLstd450Acosh:
|
|
case GLSLstd450Asinh:
|
|
case GLSLstd450Atanh:
|
|
SPIRV_CROSS_THROW("Inverse hyperbolics are not supported on HLSL.");
|
|
|
|
case GLSLstd450FMix:
|
|
case GLSLstd450IMix:
|
|
emit_trinary_func_op(result_type, id, args[0], args[1], args[2], "lerp");
|
|
break;
|
|
|
|
case GLSLstd450Atan2:
|
|
emit_binary_func_op(result_type, id, args[0], args[1], "atan2");
|
|
break;
|
|
|
|
case GLSLstd450Fma:
|
|
emit_trinary_func_op(result_type, id, args[0], args[1], args[2], "mad");
|
|
break;
|
|
|
|
case GLSLstd450InterpolateAtCentroid:
|
|
emit_unary_func_op(result_type, id, args[0], "EvaluateAttributeAtCentroid");
|
|
break;
|
|
case GLSLstd450InterpolateAtSample:
|
|
emit_binary_func_op(result_type, id, args[0], args[1], "EvaluateAttributeAtSample");
|
|
break;
|
|
case GLSLstd450InterpolateAtOffset:
|
|
emit_binary_func_op(result_type, id, args[0], args[1], "EvaluateAttributeSnapped");
|
|
break;
|
|
|
|
case GLSLstd450PackHalf2x16:
|
|
if (!requires_fp16_packing)
|
|
{
|
|
requires_fp16_packing = true;
|
|
force_recompile();
|
|
}
|
|
emit_unary_func_op(result_type, id, args[0], "SPIRV_Cross_packHalf2x16");
|
|
break;
|
|
|
|
case GLSLstd450UnpackHalf2x16:
|
|
if (!requires_fp16_packing)
|
|
{
|
|
requires_fp16_packing = true;
|
|
force_recompile();
|
|
}
|
|
emit_unary_func_op(result_type, id, args[0], "SPIRV_Cross_unpackHalf2x16");
|
|
break;
|
|
|
|
case GLSLstd450PackSnorm4x8:
|
|
if (!requires_snorm8_packing)
|
|
{
|
|
requires_snorm8_packing = true;
|
|
force_recompile();
|
|
}
|
|
emit_unary_func_op(result_type, id, args[0], "SPIRV_Cross_packSnorm4x8");
|
|
break;
|
|
|
|
case GLSLstd450UnpackSnorm4x8:
|
|
if (!requires_snorm8_packing)
|
|
{
|
|
requires_snorm8_packing = true;
|
|
force_recompile();
|
|
}
|
|
emit_unary_func_op(result_type, id, args[0], "SPIRV_Cross_unpackSnorm4x8");
|
|
break;
|
|
|
|
case GLSLstd450PackUnorm4x8:
|
|
if (!requires_unorm8_packing)
|
|
{
|
|
requires_unorm8_packing = true;
|
|
force_recompile();
|
|
}
|
|
emit_unary_func_op(result_type, id, args[0], "SPIRV_Cross_packUnorm4x8");
|
|
break;
|
|
|
|
case GLSLstd450UnpackUnorm4x8:
|
|
if (!requires_unorm8_packing)
|
|
{
|
|
requires_unorm8_packing = true;
|
|
force_recompile();
|
|
}
|
|
emit_unary_func_op(result_type, id, args[0], "SPIRV_Cross_unpackUnorm4x8");
|
|
break;
|
|
|
|
case GLSLstd450PackSnorm2x16:
|
|
if (!requires_snorm16_packing)
|
|
{
|
|
requires_snorm16_packing = true;
|
|
force_recompile();
|
|
}
|
|
emit_unary_func_op(result_type, id, args[0], "SPIRV_Cross_packSnorm2x16");
|
|
break;
|
|
|
|
case GLSLstd450UnpackSnorm2x16:
|
|
if (!requires_snorm16_packing)
|
|
{
|
|
requires_snorm16_packing = true;
|
|
force_recompile();
|
|
}
|
|
emit_unary_func_op(result_type, id, args[0], "SPIRV_Cross_unpackSnorm2x16");
|
|
break;
|
|
|
|
case GLSLstd450PackUnorm2x16:
|
|
if (!requires_unorm16_packing)
|
|
{
|
|
requires_unorm16_packing = true;
|
|
force_recompile();
|
|
}
|
|
emit_unary_func_op(result_type, id, args[0], "SPIRV_Cross_packUnorm2x16");
|
|
break;
|
|
|
|
case GLSLstd450UnpackUnorm2x16:
|
|
if (!requires_unorm16_packing)
|
|
{
|
|
requires_unorm16_packing = true;
|
|
force_recompile();
|
|
}
|
|
emit_unary_func_op(result_type, id, args[0], "SPIRV_Cross_unpackUnorm2x16");
|
|
break;
|
|
|
|
case GLSLstd450PackDouble2x32:
|
|
case GLSLstd450UnpackDouble2x32:
|
|
SPIRV_CROSS_THROW("packDouble2x32/unpackDouble2x32 not supported in HLSL.");
|
|
|
|
case GLSLstd450FindILsb:
|
|
{
|
|
auto basetype = expression_type(args[0]).basetype;
|
|
emit_unary_func_op_cast(result_type, id, args[0], "firstbitlow", basetype, basetype);
|
|
break;
|
|
}
|
|
|
|
case GLSLstd450FindSMsb:
|
|
emit_unary_func_op_cast(result_type, id, args[0], "firstbithigh", int_type, int_type);
|
|
break;
|
|
|
|
case GLSLstd450FindUMsb:
|
|
emit_unary_func_op_cast(result_type, id, args[0], "firstbithigh", uint_type, uint_type);
|
|
break;
|
|
|
|
case GLSLstd450MatrixInverse:
|
|
{
|
|
auto &type = get<SPIRType>(result_type);
|
|
if (type.vecsize == 2 && type.columns == 2)
|
|
{
|
|
if (!requires_inverse_2x2)
|
|
{
|
|
requires_inverse_2x2 = true;
|
|
force_recompile();
|
|
}
|
|
}
|
|
else if (type.vecsize == 3 && type.columns == 3)
|
|
{
|
|
if (!requires_inverse_3x3)
|
|
{
|
|
requires_inverse_3x3 = true;
|
|
force_recompile();
|
|
}
|
|
}
|
|
else if (type.vecsize == 4 && type.columns == 4)
|
|
{
|
|
if (!requires_inverse_4x4)
|
|
{
|
|
requires_inverse_4x4 = true;
|
|
force_recompile();
|
|
}
|
|
}
|
|
emit_unary_func_op(result_type, id, args[0], "SPIRV_Cross_Inverse");
|
|
break;
|
|
}
|
|
|
|
case GLSLstd450Normalize:
|
|
// HLSL does not support scalar versions here.
|
|
if (expression_type(args[0]).vecsize == 1)
|
|
{
|
|
// Returns -1 or 1 for valid input, sign() does the job.
|
|
emit_unary_func_op(result_type, id, args[0], "sign");
|
|
}
|
|
else
|
|
CompilerGLSL::emit_glsl_op(result_type, id, eop, args, count);
|
|
break;
|
|
|
|
case GLSLstd450Reflect:
|
|
if (get<SPIRType>(result_type).vecsize == 1)
|
|
{
|
|
if (!requires_scalar_reflect)
|
|
{
|
|
requires_scalar_reflect = true;
|
|
force_recompile();
|
|
}
|
|
emit_binary_func_op(result_type, id, args[0], args[1], "SPIRV_Cross_Reflect");
|
|
}
|
|
else
|
|
CompilerGLSL::emit_glsl_op(result_type, id, eop, args, count);
|
|
break;
|
|
|
|
case GLSLstd450Refract:
|
|
if (get<SPIRType>(result_type).vecsize == 1)
|
|
{
|
|
if (!requires_scalar_refract)
|
|
{
|
|
requires_scalar_refract = true;
|
|
force_recompile();
|
|
}
|
|
emit_trinary_func_op(result_type, id, args[0], args[1], args[2], "SPIRV_Cross_Refract");
|
|
}
|
|
else
|
|
CompilerGLSL::emit_glsl_op(result_type, id, eop, args, count);
|
|
break;
|
|
|
|
case GLSLstd450FaceForward:
|
|
if (get<SPIRType>(result_type).vecsize == 1)
|
|
{
|
|
if (!requires_scalar_faceforward)
|
|
{
|
|
requires_scalar_faceforward = true;
|
|
force_recompile();
|
|
}
|
|
emit_trinary_func_op(result_type, id, args[0], args[1], args[2], "SPIRV_Cross_FaceForward");
|
|
}
|
|
else
|
|
CompilerGLSL::emit_glsl_op(result_type, id, eop, args, count);
|
|
break;
|
|
|
|
default:
|
|
CompilerGLSL::emit_glsl_op(result_type, id, eop, args, count);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void CompilerHLSL::read_access_chain_array(const string &lhs, const SPIRAccessChain &chain)
|
|
{
|
|
auto &type = get<SPIRType>(chain.basetype);
|
|
|
|
// Need to use a reserved identifier here since it might shadow an identifier in the access chain input or other loops.
|
|
auto ident = get_unique_identifier();
|
|
|
|
statement("[unroll]");
|
|
statement("for (int ", ident, " = 0; ", ident, " < ", to_array_size(type, uint32_t(type.array.size() - 1)), "; ",
|
|
ident, "++)");
|
|
begin_scope();
|
|
auto subchain = chain;
|
|
subchain.dynamic_index = join(ident, " * ", chain.array_stride, " + ", chain.dynamic_index);
|
|
subchain.basetype = type.parent_type;
|
|
if (!get<SPIRType>(subchain.basetype).array.empty())
|
|
subchain.array_stride = get_decoration(subchain.basetype, DecorationArrayStride);
|
|
read_access_chain(nullptr, join(lhs, "[", ident, "]"), subchain);
|
|
end_scope();
|
|
}
|
|
|
|
void CompilerHLSL::read_access_chain_struct(const string &lhs, const SPIRAccessChain &chain)
|
|
{
|
|
auto &type = get<SPIRType>(chain.basetype);
|
|
auto subchain = chain;
|
|
uint32_t member_count = uint32_t(type.member_types.size());
|
|
|
|
for (uint32_t i = 0; i < member_count; i++)
|
|
{
|
|
uint32_t offset = type_struct_member_offset(type, i);
|
|
subchain.static_index = chain.static_index + offset;
|
|
subchain.basetype = type.member_types[i];
|
|
|
|
subchain.matrix_stride = 0;
|
|
subchain.array_stride = 0;
|
|
subchain.row_major_matrix = false;
|
|
|
|
auto &member_type = get<SPIRType>(subchain.basetype);
|
|
if (member_type.columns > 1)
|
|
{
|
|
subchain.matrix_stride = type_struct_member_matrix_stride(type, i);
|
|
subchain.row_major_matrix = has_member_decoration(type.self, i, DecorationRowMajor);
|
|
}
|
|
|
|
if (!member_type.array.empty())
|
|
subchain.array_stride = type_struct_member_array_stride(type, i);
|
|
|
|
read_access_chain(nullptr, join(lhs, ".", to_member_name(type, i)), subchain);
|
|
}
|
|
}
|
|
|
|
void CompilerHLSL::read_access_chain(string *expr, const string &lhs, const SPIRAccessChain &chain)
|
|
{
|
|
auto &type = get<SPIRType>(chain.basetype);
|
|
|
|
SPIRType target_type;
|
|
target_type.basetype = SPIRType::UInt;
|
|
target_type.vecsize = type.vecsize;
|
|
target_type.columns = type.columns;
|
|
|
|
if (!type.array.empty())
|
|
{
|
|
read_access_chain_array(lhs, chain);
|
|
return;
|
|
}
|
|
else if (type.basetype == SPIRType::Struct)
|
|
{
|
|
read_access_chain_struct(lhs, chain);
|
|
return;
|
|
}
|
|
else if (type.width != 32)
|
|
SPIRV_CROSS_THROW("Reading types other than 32-bit from ByteAddressBuffer not yet supported.");
|
|
|
|
string load_expr;
|
|
|
|
// Load a vector or scalar.
|
|
if (type.columns == 1 && !chain.row_major_matrix)
|
|
{
|
|
const char *load_op = nullptr;
|
|
switch (type.vecsize)
|
|
{
|
|
case 1:
|
|
load_op = "Load";
|
|
break;
|
|
case 2:
|
|
load_op = "Load2";
|
|
break;
|
|
case 3:
|
|
load_op = "Load3";
|
|
break;
|
|
case 4:
|
|
load_op = "Load4";
|
|
break;
|
|
default:
|
|
SPIRV_CROSS_THROW("Unknown vector size.");
|
|
}
|
|
|
|
load_expr = join(chain.base, ".", load_op, "(", chain.dynamic_index, chain.static_index, ")");
|
|
}
|
|
else if (type.columns == 1)
|
|
{
|
|
// Strided load since we are loading a column from a row-major matrix.
|
|
if (type.vecsize > 1)
|
|
{
|
|
load_expr = type_to_glsl(target_type);
|
|
load_expr += "(";
|
|
}
|
|
|
|
for (uint32_t r = 0; r < type.vecsize; r++)
|
|
{
|
|
load_expr +=
|
|
join(chain.base, ".Load(", chain.dynamic_index, chain.static_index + r * chain.matrix_stride, ")");
|
|
if (r + 1 < type.vecsize)
|
|
load_expr += ", ";
|
|
}
|
|
|
|
if (type.vecsize > 1)
|
|
load_expr += ")";
|
|
}
|
|
else if (!chain.row_major_matrix)
|
|
{
|
|
// Load a matrix, column-major, the easy case.
|
|
const char *load_op = nullptr;
|
|
switch (type.vecsize)
|
|
{
|
|
case 1:
|
|
load_op = "Load";
|
|
break;
|
|
case 2:
|
|
load_op = "Load2";
|
|
break;
|
|
case 3:
|
|
load_op = "Load3";
|
|
break;
|
|
case 4:
|
|
load_op = "Load4";
|
|
break;
|
|
default:
|
|
SPIRV_CROSS_THROW("Unknown vector size.");
|
|
}
|
|
|
|
// Note, this loading style in HLSL is *actually* row-major, but we always treat matrices as transposed in this backend,
|
|
// so row-major is technically column-major ...
|
|
load_expr = type_to_glsl(target_type);
|
|
load_expr += "(";
|
|
for (uint32_t c = 0; c < type.columns; c++)
|
|
{
|
|
load_expr += join(chain.base, ".", load_op, "(", chain.dynamic_index,
|
|
chain.static_index + c * chain.matrix_stride, ")");
|
|
if (c + 1 < type.columns)
|
|
load_expr += ", ";
|
|
}
|
|
load_expr += ")";
|
|
}
|
|
else
|
|
{
|
|
// Pick out elements one by one ... Hopefully compilers are smart enough to recognize this pattern
|
|
// considering HLSL is "row-major decl", but "column-major" memory layout (basically implicit transpose model, ugh) ...
|
|
|
|
load_expr = type_to_glsl(target_type);
|
|
load_expr += "(";
|
|
for (uint32_t c = 0; c < type.columns; c++)
|
|
{
|
|
for (uint32_t r = 0; r < type.vecsize; r++)
|
|
{
|
|
load_expr += join(chain.base, ".Load(", chain.dynamic_index,
|
|
chain.static_index + c * (type.width / 8) + r * chain.matrix_stride, ")");
|
|
|
|
if ((r + 1 < type.vecsize) || (c + 1 < type.columns))
|
|
load_expr += ", ";
|
|
}
|
|
}
|
|
load_expr += ")";
|
|
}
|
|
|
|
auto bitcast_op = bitcast_glsl_op(type, target_type);
|
|
if (!bitcast_op.empty())
|
|
load_expr = join(bitcast_op, "(", load_expr, ")");
|
|
|
|
if (lhs.empty())
|
|
{
|
|
assert(expr);
|
|
*expr = move(load_expr);
|
|
}
|
|
else
|
|
statement(lhs, " = ", load_expr, ";");
|
|
}
|
|
|
|
void CompilerHLSL::emit_load(const Instruction &instruction)
|
|
{
|
|
auto ops = stream(instruction);
|
|
|
|
auto *chain = maybe_get<SPIRAccessChain>(ops[2]);
|
|
if (chain)
|
|
{
|
|
uint32_t result_type = ops[0];
|
|
uint32_t id = ops[1];
|
|
uint32_t ptr = ops[2];
|
|
|
|
if (has_decoration(ptr, DecorationNonUniformEXT))
|
|
propagate_nonuniform_qualifier(ptr);
|
|
|
|
auto &type = get<SPIRType>(result_type);
|
|
bool composite_load = !type.array.empty() || type.basetype == SPIRType::Struct;
|
|
|
|
if (composite_load)
|
|
{
|
|
// We cannot make this work in one single expression as we might have nested structures and arrays,
|
|
// so unroll the load to an uninitialized temporary.
|
|
emit_uninitialized_temporary_expression(result_type, id);
|
|
read_access_chain(nullptr, to_expression(id), *chain);
|
|
track_expression_read(chain->self);
|
|
}
|
|
else
|
|
{
|
|
string load_expr;
|
|
read_access_chain(&load_expr, "", *chain);
|
|
|
|
bool forward = should_forward(ptr) && forced_temporaries.find(id) == end(forced_temporaries);
|
|
|
|
// If we are forwarding this load,
|
|
// don't register the read to access chain here, defer that to when we actually use the expression,
|
|
// using the add_implied_read_expression mechanism.
|
|
if (!forward)
|
|
track_expression_read(chain->self);
|
|
|
|
// Do not forward complex load sequences like matrices, structs and arrays.
|
|
if (type.columns > 1)
|
|
forward = false;
|
|
|
|
auto &e = emit_op(result_type, id, load_expr, forward, true);
|
|
e.need_transpose = false;
|
|
register_read(id, ptr, forward);
|
|
inherit_expression_dependencies(id, ptr);
|
|
if (forward)
|
|
add_implied_read_expression(e, chain->self);
|
|
}
|
|
}
|
|
else
|
|
CompilerGLSL::emit_instruction(instruction);
|
|
}
|
|
|
|
void CompilerHLSL::write_access_chain_array(const SPIRAccessChain &chain, uint32_t value,
|
|
const SmallVector<uint32_t> &composite_chain)
|
|
{
|
|
auto &type = get<SPIRType>(chain.basetype);
|
|
|
|
// Need to use a reserved identifier here since it might shadow an identifier in the access chain input or other loops.
|
|
auto ident = get_unique_identifier();
|
|
|
|
uint32_t id = ir.increase_bound_by(2);
|
|
uint32_t int_type_id = id + 1;
|
|
SPIRType int_type;
|
|
int_type.basetype = SPIRType::Int;
|
|
int_type.width = 32;
|
|
set<SPIRType>(int_type_id, int_type);
|
|
set<SPIRExpression>(id, ident, int_type_id, true);
|
|
set_name(id, ident);
|
|
suppressed_usage_tracking.insert(id);
|
|
|
|
statement("[unroll]");
|
|
statement("for (int ", ident, " = 0; ", ident, " < ", to_array_size(type, uint32_t(type.array.size() - 1)), "; ",
|
|
ident, "++)");
|
|
begin_scope();
|
|
auto subchain = chain;
|
|
subchain.dynamic_index = join(ident, " * ", chain.array_stride, " + ", chain.dynamic_index);
|
|
subchain.basetype = type.parent_type;
|
|
|
|
// Forcefully allow us to use an ID here by setting MSB.
|
|
auto subcomposite_chain = composite_chain;
|
|
subcomposite_chain.push_back(0x80000000u | id);
|
|
|
|
if (!get<SPIRType>(subchain.basetype).array.empty())
|
|
subchain.array_stride = get_decoration(subchain.basetype, DecorationArrayStride);
|
|
|
|
write_access_chain(subchain, value, subcomposite_chain);
|
|
end_scope();
|
|
}
|
|
|
|
void CompilerHLSL::write_access_chain_struct(const SPIRAccessChain &chain, uint32_t value,
|
|
const SmallVector<uint32_t> &composite_chain)
|
|
{
|
|
auto &type = get<SPIRType>(chain.basetype);
|
|
uint32_t member_count = uint32_t(type.member_types.size());
|
|
auto subchain = chain;
|
|
|
|
auto subcomposite_chain = composite_chain;
|
|
subcomposite_chain.push_back(0);
|
|
|
|
for (uint32_t i = 0; i < member_count; i++)
|
|
{
|
|
uint32_t offset = type_struct_member_offset(type, i);
|
|
subchain.static_index = chain.static_index + offset;
|
|
subchain.basetype = type.member_types[i];
|
|
|
|
subchain.matrix_stride = 0;
|
|
subchain.array_stride = 0;
|
|
subchain.row_major_matrix = false;
|
|
|
|
auto &member_type = get<SPIRType>(subchain.basetype);
|
|
if (member_type.columns > 1)
|
|
{
|
|
subchain.matrix_stride = type_struct_member_matrix_stride(type, i);
|
|
subchain.row_major_matrix = has_member_decoration(type.self, i, DecorationRowMajor);
|
|
}
|
|
|
|
if (!member_type.array.empty())
|
|
subchain.array_stride = type_struct_member_array_stride(type, i);
|
|
|
|
subcomposite_chain.back() = i;
|
|
write_access_chain(subchain, value, subcomposite_chain);
|
|
}
|
|
}
|
|
|
|
string CompilerHLSL::write_access_chain_value(uint32_t value, const SmallVector<uint32_t> &composite_chain,
|
|
bool enclose)
|
|
{
|
|
string ret;
|
|
if (composite_chain.empty())
|
|
ret = to_expression(value);
|
|
else
|
|
{
|
|
AccessChainMeta meta;
|
|
ret = access_chain_internal(value, composite_chain.data(), uint32_t(composite_chain.size()),
|
|
ACCESS_CHAIN_INDEX_IS_LITERAL_BIT | ACCESS_CHAIN_LITERAL_MSB_FORCE_ID, &meta);
|
|
}
|
|
|
|
if (enclose)
|
|
ret = enclose_expression(ret);
|
|
return ret;
|
|
}
|
|
|
|
void CompilerHLSL::write_access_chain(const SPIRAccessChain &chain, uint32_t value,
|
|
const SmallVector<uint32_t> &composite_chain)
|
|
{
|
|
auto &type = get<SPIRType>(chain.basetype);
|
|
|
|
// Make sure we trigger a read of the constituents in the access chain.
|
|
track_expression_read(chain.self);
|
|
|
|
if (has_decoration(chain.self, DecorationNonUniformEXT))
|
|
propagate_nonuniform_qualifier(chain.self);
|
|
|
|
SPIRType target_type;
|
|
target_type.basetype = SPIRType::UInt;
|
|
target_type.vecsize = type.vecsize;
|
|
target_type.columns = type.columns;
|
|
|
|
if (!type.array.empty())
|
|
{
|
|
write_access_chain_array(chain, value, composite_chain);
|
|
register_write(chain.self);
|
|
return;
|
|
}
|
|
else if (type.basetype == SPIRType::Struct)
|
|
{
|
|
write_access_chain_struct(chain, value, composite_chain);
|
|
register_write(chain.self);
|
|
return;
|
|
}
|
|
else if (type.width != 32)
|
|
SPIRV_CROSS_THROW("Writing types other than 32-bit to RWByteAddressBuffer not yet supported.");
|
|
|
|
if (type.columns == 1 && !chain.row_major_matrix)
|
|
{
|
|
const char *store_op = nullptr;
|
|
switch (type.vecsize)
|
|
{
|
|
case 1:
|
|
store_op = "Store";
|
|
break;
|
|
case 2:
|
|
store_op = "Store2";
|
|
break;
|
|
case 3:
|
|
store_op = "Store3";
|
|
break;
|
|
case 4:
|
|
store_op = "Store4";
|
|
break;
|
|
default:
|
|
SPIRV_CROSS_THROW("Unknown vector size.");
|
|
}
|
|
|
|
auto store_expr = write_access_chain_value(value, composite_chain, false);
|
|
auto bitcast_op = bitcast_glsl_op(target_type, type);
|
|
if (!bitcast_op.empty())
|
|
store_expr = join(bitcast_op, "(", store_expr, ")");
|
|
statement(chain.base, ".", store_op, "(", chain.dynamic_index, chain.static_index, ", ", store_expr, ");");
|
|
}
|
|
else if (type.columns == 1)
|
|
{
|
|
// Strided store.
|
|
for (uint32_t r = 0; r < type.vecsize; r++)
|
|
{
|
|
auto store_expr = write_access_chain_value(value, composite_chain, true);
|
|
if (type.vecsize > 1)
|
|
{
|
|
store_expr += ".";
|
|
store_expr += index_to_swizzle(r);
|
|
}
|
|
remove_duplicate_swizzle(store_expr);
|
|
|
|
auto bitcast_op = bitcast_glsl_op(target_type, type);
|
|
if (!bitcast_op.empty())
|
|
store_expr = join(bitcast_op, "(", store_expr, ")");
|
|
statement(chain.base, ".Store(", chain.dynamic_index, chain.static_index + chain.matrix_stride * r, ", ",
|
|
store_expr, ");");
|
|
}
|
|
}
|
|
else if (!chain.row_major_matrix)
|
|
{
|
|
const char *store_op = nullptr;
|
|
switch (type.vecsize)
|
|
{
|
|
case 1:
|
|
store_op = "Store";
|
|
break;
|
|
case 2:
|
|
store_op = "Store2";
|
|
break;
|
|
case 3:
|
|
store_op = "Store3";
|
|
break;
|
|
case 4:
|
|
store_op = "Store4";
|
|
break;
|
|
default:
|
|
SPIRV_CROSS_THROW("Unknown vector size.");
|
|
}
|
|
|
|
for (uint32_t c = 0; c < type.columns; c++)
|
|
{
|
|
auto store_expr = join(write_access_chain_value(value, composite_chain, true), "[", c, "]");
|
|
auto bitcast_op = bitcast_glsl_op(target_type, type);
|
|
if (!bitcast_op.empty())
|
|
store_expr = join(bitcast_op, "(", store_expr, ")");
|
|
statement(chain.base, ".", store_op, "(", chain.dynamic_index, chain.static_index + c * chain.matrix_stride,
|
|
", ", store_expr, ");");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (uint32_t r = 0; r < type.vecsize; r++)
|
|
{
|
|
for (uint32_t c = 0; c < type.columns; c++)
|
|
{
|
|
auto store_expr =
|
|
join(write_access_chain_value(value, composite_chain, true), "[", c, "].", index_to_swizzle(r));
|
|
remove_duplicate_swizzle(store_expr);
|
|
auto bitcast_op = bitcast_glsl_op(target_type, type);
|
|
if (!bitcast_op.empty())
|
|
store_expr = join(bitcast_op, "(", store_expr, ")");
|
|
statement(chain.base, ".Store(", chain.dynamic_index,
|
|
chain.static_index + c * (type.width / 8) + r * chain.matrix_stride, ", ", store_expr, ");");
|
|
}
|
|
}
|
|
}
|
|
|
|
register_write(chain.self);
|
|
}
|
|
|
|
void CompilerHLSL::emit_store(const Instruction &instruction)
|
|
{
|
|
auto ops = stream(instruction);
|
|
auto *chain = maybe_get<SPIRAccessChain>(ops[0]);
|
|
if (chain)
|
|
write_access_chain(*chain, ops[1], {});
|
|
else
|
|
CompilerGLSL::emit_instruction(instruction);
|
|
}
|
|
|
|
void CompilerHLSL::emit_access_chain(const Instruction &instruction)
|
|
{
|
|
auto ops = stream(instruction);
|
|
uint32_t length = instruction.length;
|
|
|
|
bool need_byte_access_chain = false;
|
|
auto &type = expression_type(ops[2]);
|
|
const auto *chain = maybe_get<SPIRAccessChain>(ops[2]);
|
|
|
|
if (chain)
|
|
{
|
|
// Keep tacking on an existing access chain.
|
|
need_byte_access_chain = true;
|
|
}
|
|
else if (type.storage == StorageClassStorageBuffer || has_decoration(type.self, DecorationBufferBlock))
|
|
{
|
|
// If we are starting to poke into an SSBO, we are dealing with ByteAddressBuffers, and we need
|
|
// to emit SPIRAccessChain rather than a plain SPIRExpression.
|
|
uint32_t chain_arguments = length - 3;
|
|
if (chain_arguments > type.array.size())
|
|
need_byte_access_chain = true;
|
|
}
|
|
|
|
if (need_byte_access_chain)
|
|
{
|
|
// If we have a chain variable, we are already inside the SSBO, and any array type will refer to arrays within a block,
|
|
// and not array of SSBO.
|
|
uint32_t to_plain_buffer_length = chain ? 0u : static_cast<uint32_t>(type.array.size());
|
|
|
|
auto *backing_variable = maybe_get_backing_variable(ops[2]);
|
|
|
|
string base;
|
|
if (to_plain_buffer_length != 0)
|
|
base = access_chain(ops[2], &ops[3], to_plain_buffer_length, get<SPIRType>(ops[0]));
|
|
else if (chain)
|
|
base = chain->base;
|
|
else
|
|
base = to_expression(ops[2]);
|
|
|
|
// Start traversing type hierarchy at the proper non-pointer types.
|
|
auto *basetype = &get_pointee_type(type);
|
|
|
|
// Traverse the type hierarchy down to the actual buffer types.
|
|
for (uint32_t i = 0; i < to_plain_buffer_length; i++)
|
|
{
|
|
assert(basetype->parent_type);
|
|
basetype = &get<SPIRType>(basetype->parent_type);
|
|
}
|
|
|
|
uint32_t matrix_stride = 0;
|
|
uint32_t array_stride = 0;
|
|
bool row_major_matrix = false;
|
|
|
|
// Inherit matrix information.
|
|
if (chain)
|
|
{
|
|
matrix_stride = chain->matrix_stride;
|
|
row_major_matrix = chain->row_major_matrix;
|
|
array_stride = chain->array_stride;
|
|
}
|
|
|
|
auto offsets = flattened_access_chain_offset(*basetype, &ops[3 + to_plain_buffer_length],
|
|
length - 3 - to_plain_buffer_length, 0, 1, &row_major_matrix,
|
|
&matrix_stride, &array_stride);
|
|
|
|
auto &e = set<SPIRAccessChain>(ops[1], ops[0], type.storage, base, offsets.first, offsets.second);
|
|
e.row_major_matrix = row_major_matrix;
|
|
e.matrix_stride = matrix_stride;
|
|
e.array_stride = array_stride;
|
|
e.immutable = should_forward(ops[2]);
|
|
e.loaded_from = backing_variable ? backing_variable->self : ID(0);
|
|
|
|
if (chain)
|
|
{
|
|
e.dynamic_index += chain->dynamic_index;
|
|
e.static_index += chain->static_index;
|
|
}
|
|
|
|
for (uint32_t i = 2; i < length; i++)
|
|
{
|
|
inherit_expression_dependencies(ops[1], ops[i]);
|
|
add_implied_read_expression(e, ops[i]);
|
|
}
|
|
|
|
if (has_decoration(ops[1], DecorationNonUniformEXT))
|
|
propagate_nonuniform_qualifier(ops[1]);
|
|
}
|
|
else
|
|
{
|
|
CompilerGLSL::emit_instruction(instruction);
|
|
}
|
|
}
|
|
|
|
void CompilerHLSL::emit_atomic(const uint32_t *ops, uint32_t length, spv::Op op)
|
|
{
|
|
const char *atomic_op = nullptr;
|
|
|
|
string value_expr;
|
|
if (op != OpAtomicIDecrement && op != OpAtomicIIncrement && op != OpAtomicLoad && op != OpAtomicStore)
|
|
value_expr = to_expression(ops[op == OpAtomicCompareExchange ? 6 : 5]);
|
|
|
|
bool is_atomic_store = false;
|
|
|
|
switch (op)
|
|
{
|
|
case OpAtomicIIncrement:
|
|
atomic_op = "InterlockedAdd";
|
|
value_expr = "1";
|
|
break;
|
|
|
|
case OpAtomicIDecrement:
|
|
atomic_op = "InterlockedAdd";
|
|
value_expr = "-1";
|
|
break;
|
|
|
|
case OpAtomicLoad:
|
|
atomic_op = "InterlockedAdd";
|
|
value_expr = "0";
|
|
break;
|
|
|
|
case OpAtomicISub:
|
|
atomic_op = "InterlockedAdd";
|
|
value_expr = join("-", enclose_expression(value_expr));
|
|
break;
|
|
|
|
case OpAtomicSMin:
|
|
case OpAtomicUMin:
|
|
atomic_op = "InterlockedMin";
|
|
break;
|
|
|
|
case OpAtomicSMax:
|
|
case OpAtomicUMax:
|
|
atomic_op = "InterlockedMax";
|
|
break;
|
|
|
|
case OpAtomicAnd:
|
|
atomic_op = "InterlockedAnd";
|
|
break;
|
|
|
|
case OpAtomicOr:
|
|
atomic_op = "InterlockedOr";
|
|
break;
|
|
|
|
case OpAtomicXor:
|
|
atomic_op = "InterlockedXor";
|
|
break;
|
|
|
|
case OpAtomicIAdd:
|
|
atomic_op = "InterlockedAdd";
|
|
break;
|
|
|
|
case OpAtomicExchange:
|
|
atomic_op = "InterlockedExchange";
|
|
break;
|
|
|
|
case OpAtomicStore:
|
|
atomic_op = "InterlockedExchange";
|
|
is_atomic_store = true;
|
|
break;
|
|
|
|
case OpAtomicCompareExchange:
|
|
if (length < 8)
|
|
SPIRV_CROSS_THROW("Not enough data for opcode.");
|
|
atomic_op = "InterlockedCompareExchange";
|
|
value_expr = join(to_expression(ops[7]), ", ", value_expr);
|
|
break;
|
|
|
|
default:
|
|
SPIRV_CROSS_THROW("Unknown atomic opcode.");
|
|
}
|
|
|
|
if (is_atomic_store)
|
|
{
|
|
auto &data_type = expression_type(ops[0]);
|
|
auto *chain = maybe_get<SPIRAccessChain>(ops[0]);
|
|
|
|
auto &tmp_id = extra_sub_expressions[ops[0]];
|
|
if (!tmp_id)
|
|
{
|
|
tmp_id = ir.increase_bound_by(1);
|
|
emit_uninitialized_temporary_expression(get_pointee_type(data_type).self, tmp_id);
|
|
}
|
|
|
|
if (data_type.storage == StorageClassImage || !chain)
|
|
{
|
|
statement(atomic_op, "(", to_expression(ops[0]), ", ", to_expression(ops[3]), ", ", to_expression(tmp_id), ");");
|
|
}
|
|
else
|
|
{
|
|
// RWByteAddress buffer is always uint in its underlying type.
|
|
statement(chain->base, ".", atomic_op, "(", chain->dynamic_index, chain->static_index, ", ", to_expression(ops[3]),
|
|
", ", to_expression(tmp_id), ");");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
uint32_t result_type = ops[0];
|
|
uint32_t id = ops[1];
|
|
forced_temporaries.insert(ops[1]);
|
|
|
|
auto &type = get<SPIRType>(result_type);
|
|
statement(variable_decl(type, to_name(id)), ";");
|
|
|
|
auto &data_type = expression_type(ops[2]);
|
|
auto *chain = maybe_get<SPIRAccessChain>(ops[2]);
|
|
SPIRType::BaseType expr_type;
|
|
if (data_type.storage == StorageClassImage || !chain)
|
|
{
|
|
statement(atomic_op, "(", to_expression(ops[2]), ", ", value_expr, ", ", to_name(id), ");");
|
|
expr_type = data_type.basetype;
|
|
}
|
|
else
|
|
{
|
|
// RWByteAddress buffer is always uint in its underlying type.
|
|
expr_type = SPIRType::UInt;
|
|
statement(chain->base, ".", atomic_op, "(", chain->dynamic_index, chain->static_index, ", ", value_expr,
|
|
", ", to_name(id), ");");
|
|
}
|
|
|
|
auto expr = bitcast_expression(type, expr_type, to_name(id));
|
|
set<SPIRExpression>(id, expr, result_type, true);
|
|
}
|
|
flush_all_atomic_capable_variables();
|
|
}
|
|
|
|
void CompilerHLSL::emit_subgroup_op(const Instruction &i)
|
|
{
|
|
if (hlsl_options.shader_model < 60)
|
|
SPIRV_CROSS_THROW("Wave ops requires SM 6.0 or higher.");
|
|
|
|
const uint32_t *ops = stream(i);
|
|
auto op = static_cast<Op>(i.op);
|
|
|
|
uint32_t result_type = ops[0];
|
|
uint32_t id = ops[1];
|
|
|
|
auto scope = static_cast<Scope>(get<SPIRConstant>(ops[2]).scalar());
|
|
if (scope != ScopeSubgroup)
|
|
SPIRV_CROSS_THROW("Only subgroup scope is supported.");
|
|
|
|
const auto make_inclusive_Sum = [&](const string &expr) -> string {
|
|
return join(expr, " + ", to_expression(ops[4]));
|
|
};
|
|
|
|
const auto make_inclusive_Product = [&](const string &expr) -> string {
|
|
return join(expr, " * ", to_expression(ops[4]));
|
|
};
|
|
|
|
// If we need to do implicit bitcasts, make sure we do it with the correct type.
|
|
uint32_t integer_width = get_integer_width_for_instruction(i);
|
|
auto int_type = to_signed_basetype(integer_width);
|
|
auto uint_type = to_unsigned_basetype(integer_width);
|
|
|
|
#define make_inclusive_BitAnd(expr) ""
|
|
#define make_inclusive_BitOr(expr) ""
|
|
#define make_inclusive_BitXor(expr) ""
|
|
#define make_inclusive_Min(expr) ""
|
|
#define make_inclusive_Max(expr) ""
|
|
|
|
switch (op)
|
|
{
|
|
case OpGroupNonUniformElect:
|
|
emit_op(result_type, id, "WaveIsFirstLane()", true);
|
|
break;
|
|
|
|
case OpGroupNonUniformBroadcast:
|
|
emit_binary_func_op(result_type, id, ops[3], ops[4], "WaveReadLaneAt");
|
|
break;
|
|
|
|
case OpGroupNonUniformBroadcastFirst:
|
|
emit_unary_func_op(result_type, id, ops[3], "WaveReadLaneFirst");
|
|
break;
|
|
|
|
case OpGroupNonUniformBallot:
|
|
emit_unary_func_op(result_type, id, ops[3], "WaveActiveBallot");
|
|
break;
|
|
|
|
case OpGroupNonUniformInverseBallot:
|
|
SPIRV_CROSS_THROW("Cannot trivially implement InverseBallot in HLSL.");
|
|
break;
|
|
|
|
case OpGroupNonUniformBallotBitExtract:
|
|
SPIRV_CROSS_THROW("Cannot trivially implement BallotBitExtract in HLSL.");
|
|
break;
|
|
|
|
case OpGroupNonUniformBallotFindLSB:
|
|
SPIRV_CROSS_THROW("Cannot trivially implement BallotFindLSB in HLSL.");
|
|
break;
|
|
|
|
case OpGroupNonUniformBallotFindMSB:
|
|
SPIRV_CROSS_THROW("Cannot trivially implement BallotFindMSB in HLSL.");
|
|
break;
|
|
|
|
case OpGroupNonUniformBallotBitCount:
|
|
{
|
|
auto operation = static_cast<GroupOperation>(ops[3]);
|
|
if (operation == GroupOperationReduce)
|
|
{
|
|
bool forward = should_forward(ops[4]);
|
|
auto left = join("countbits(", to_enclosed_expression(ops[4]), ".x) + countbits(",
|
|
to_enclosed_expression(ops[4]), ".y)");
|
|
auto right = join("countbits(", to_enclosed_expression(ops[4]), ".z) + countbits(",
|
|
to_enclosed_expression(ops[4]), ".w)");
|
|
emit_op(result_type, id, join(left, " + ", right), forward);
|
|
inherit_expression_dependencies(id, ops[4]);
|
|
}
|
|
else if (operation == GroupOperationInclusiveScan)
|
|
SPIRV_CROSS_THROW("Cannot trivially implement BallotBitCount Inclusive Scan in HLSL.");
|
|
else if (operation == GroupOperationExclusiveScan)
|
|
SPIRV_CROSS_THROW("Cannot trivially implement BallotBitCount Exclusive Scan in HLSL.");
|
|
else
|
|
SPIRV_CROSS_THROW("Invalid BitCount operation.");
|
|
break;
|
|
}
|
|
|
|
case OpGroupNonUniformShuffle:
|
|
SPIRV_CROSS_THROW("Cannot trivially implement Shuffle in HLSL.");
|
|
case OpGroupNonUniformShuffleXor:
|
|
SPIRV_CROSS_THROW("Cannot trivially implement ShuffleXor in HLSL.");
|
|
case OpGroupNonUniformShuffleUp:
|
|
SPIRV_CROSS_THROW("Cannot trivially implement ShuffleUp in HLSL.");
|
|
case OpGroupNonUniformShuffleDown:
|
|
SPIRV_CROSS_THROW("Cannot trivially implement ShuffleDown in HLSL.");
|
|
|
|
case OpGroupNonUniformAll:
|
|
emit_unary_func_op(result_type, id, ops[3], "WaveActiveAllTrue");
|
|
break;
|
|
|
|
case OpGroupNonUniformAny:
|
|
emit_unary_func_op(result_type, id, ops[3], "WaveActiveAnyTrue");
|
|
break;
|
|
|
|
case OpGroupNonUniformAllEqual:
|
|
{
|
|
auto &type = get<SPIRType>(result_type);
|
|
emit_unary_func_op(result_type, id, ops[3],
|
|
type.basetype == SPIRType::Boolean ? "WaveActiveAllEqualBool" : "WaveActiveAllEqual");
|
|
break;
|
|
}
|
|
|
|
// clang-format off
|
|
#define HLSL_GROUP_OP(op, hlsl_op, supports_scan) \
|
|
case OpGroupNonUniform##op: \
|
|
{ \
|
|
auto operation = static_cast<GroupOperation>(ops[3]); \
|
|
if (operation == GroupOperationReduce) \
|
|
emit_unary_func_op(result_type, id, ops[4], "WaveActive" #hlsl_op); \
|
|
else if (operation == GroupOperationInclusiveScan && supports_scan) \
|
|
{ \
|
|
bool forward = should_forward(ops[4]); \
|
|
emit_op(result_type, id, make_inclusive_##hlsl_op (join("WavePrefix" #hlsl_op, "(", to_expression(ops[4]), ")")), forward); \
|
|
inherit_expression_dependencies(id, ops[4]); \
|
|
} \
|
|
else if (operation == GroupOperationExclusiveScan && supports_scan) \
|
|
emit_unary_func_op(result_type, id, ops[4], "WavePrefix" #hlsl_op); \
|
|
else if (operation == GroupOperationClusteredReduce) \
|
|
SPIRV_CROSS_THROW("Cannot trivially implement ClusteredReduce in HLSL."); \
|
|
else \
|
|
SPIRV_CROSS_THROW("Invalid group operation."); \
|
|
break; \
|
|
}
|
|
|
|
#define HLSL_GROUP_OP_CAST(op, hlsl_op, type) \
|
|
case OpGroupNonUniform##op: \
|
|
{ \
|
|
auto operation = static_cast<GroupOperation>(ops[3]); \
|
|
if (operation == GroupOperationReduce) \
|
|
emit_unary_func_op_cast(result_type, id, ops[4], "WaveActive" #hlsl_op, type, type); \
|
|
else \
|
|
SPIRV_CROSS_THROW("Invalid group operation."); \
|
|
break; \
|
|
}
|
|
|
|
HLSL_GROUP_OP(FAdd, Sum, true)
|
|
HLSL_GROUP_OP(FMul, Product, true)
|
|
HLSL_GROUP_OP(FMin, Min, false)
|
|
HLSL_GROUP_OP(FMax, Max, false)
|
|
HLSL_GROUP_OP(IAdd, Sum, true)
|
|
HLSL_GROUP_OP(IMul, Product, true)
|
|
HLSL_GROUP_OP_CAST(SMin, Min, int_type)
|
|
HLSL_GROUP_OP_CAST(SMax, Max, int_type)
|
|
HLSL_GROUP_OP_CAST(UMin, Min, uint_type)
|
|
HLSL_GROUP_OP_CAST(UMax, Max, uint_type)
|
|
HLSL_GROUP_OP(BitwiseAnd, BitAnd, false)
|
|
HLSL_GROUP_OP(BitwiseOr, BitOr, false)
|
|
HLSL_GROUP_OP(BitwiseXor, BitXor, false)
|
|
|
|
#undef HLSL_GROUP_OP
|
|
#undef HLSL_GROUP_OP_CAST
|
|
// clang-format on
|
|
|
|
case OpGroupNonUniformQuadSwap:
|
|
{
|
|
uint32_t direction = get<SPIRConstant>(ops[4]).scalar();
|
|
if (direction == 0)
|
|
emit_unary_func_op(result_type, id, ops[3], "QuadReadAcrossX");
|
|
else if (direction == 1)
|
|
emit_unary_func_op(result_type, id, ops[3], "QuadReadAcrossY");
|
|
else if (direction == 2)
|
|
emit_unary_func_op(result_type, id, ops[3], "QuadReadAcrossDiagonal");
|
|
else
|
|
SPIRV_CROSS_THROW("Invalid quad swap direction.");
|
|
break;
|
|
}
|
|
|
|
case OpGroupNonUniformQuadBroadcast:
|
|
{
|
|
emit_binary_func_op(result_type, id, ops[3], ops[4], "QuadReadLaneAt");
|
|
break;
|
|
}
|
|
|
|
default:
|
|
SPIRV_CROSS_THROW("Invalid opcode for subgroup.");
|
|
}
|
|
|
|
register_control_dependent_expression(id);
|
|
}
|
|
|
|
void CompilerHLSL::emit_instruction(const Instruction &instruction)
|
|
{
|
|
auto ops = stream(instruction);
|
|
auto opcode = static_cast<Op>(instruction.op);
|
|
|
|
#define HLSL_BOP(op) emit_binary_op(ops[0], ops[1], ops[2], ops[3], #op)
|
|
#define HLSL_BOP_CAST(op, type) \
|
|
emit_binary_op_cast(ops[0], ops[1], ops[2], ops[3], #op, type, opcode_is_sign_invariant(opcode))
|
|
#define HLSL_UOP(op) emit_unary_op(ops[0], ops[1], ops[2], #op)
|
|
#define HLSL_QFOP(op) emit_quaternary_func_op(ops[0], ops[1], ops[2], ops[3], ops[4], ops[5], #op)
|
|
#define HLSL_TFOP(op) emit_trinary_func_op(ops[0], ops[1], ops[2], ops[3], ops[4], #op)
|
|
#define HLSL_BFOP(op) emit_binary_func_op(ops[0], ops[1], ops[2], ops[3], #op)
|
|
#define HLSL_BFOP_CAST(op, type) \
|
|
emit_binary_func_op_cast(ops[0], ops[1], ops[2], ops[3], #op, type, opcode_is_sign_invariant(opcode))
|
|
#define HLSL_BFOP(op) emit_binary_func_op(ops[0], ops[1], ops[2], ops[3], #op)
|
|
#define HLSL_UFOP(op) emit_unary_func_op(ops[0], ops[1], ops[2], #op)
|
|
|
|
// If we need to do implicit bitcasts, make sure we do it with the correct type.
|
|
uint32_t integer_width = get_integer_width_for_instruction(instruction);
|
|
auto int_type = to_signed_basetype(integer_width);
|
|
auto uint_type = to_unsigned_basetype(integer_width);
|
|
|
|
switch (opcode)
|
|
{
|
|
case OpAccessChain:
|
|
case OpInBoundsAccessChain:
|
|
{
|
|
emit_access_chain(instruction);
|
|
break;
|
|
}
|
|
case OpBitcast:
|
|
{
|
|
auto bitcast_type = get_bitcast_type(ops[0], ops[2]);
|
|
if (bitcast_type == CompilerHLSL::TypeNormal)
|
|
CompilerGLSL::emit_instruction(instruction);
|
|
else
|
|
{
|
|
if (!requires_uint2_packing)
|
|
{
|
|
requires_uint2_packing = true;
|
|
force_recompile();
|
|
}
|
|
|
|
if (bitcast_type == CompilerHLSL::TypePackUint2x32)
|
|
emit_unary_func_op(ops[0], ops[1], ops[2], "SPIRV_Cross_packUint2x32");
|
|
else
|
|
emit_unary_func_op(ops[0], ops[1], ops[2], "SPIRV_Cross_unpackUint2x32");
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case OpStore:
|
|
{
|
|
emit_store(instruction);
|
|
break;
|
|
}
|
|
|
|
case OpLoad:
|
|
{
|
|
emit_load(instruction);
|
|
break;
|
|
}
|
|
|
|
case OpMatrixTimesVector:
|
|
{
|
|
// Matrices are kept in a transposed state all the time, flip multiplication order always.
|
|
emit_binary_func_op(ops[0], ops[1], ops[3], ops[2], "mul");
|
|
break;
|
|
}
|
|
|
|
case OpVectorTimesMatrix:
|
|
{
|
|
// Matrices are kept in a transposed state all the time, flip multiplication order always.
|
|
emit_binary_func_op(ops[0], ops[1], ops[3], ops[2], "mul");
|
|
break;
|
|
}
|
|
|
|
case OpMatrixTimesMatrix:
|
|
{
|
|
// Matrices are kept in a transposed state all the time, flip multiplication order always.
|
|
emit_binary_func_op(ops[0], ops[1], ops[3], ops[2], "mul");
|
|
break;
|
|
}
|
|
|
|
case OpOuterProduct:
|
|
{
|
|
uint32_t result_type = ops[0];
|
|
uint32_t id = ops[1];
|
|
uint32_t a = ops[2];
|
|
uint32_t b = ops[3];
|
|
|
|
auto &type = get<SPIRType>(result_type);
|
|
string expr = type_to_glsl_constructor(type);
|
|
expr += "(";
|
|
for (uint32_t col = 0; col < type.columns; col++)
|
|
{
|
|
expr += to_enclosed_expression(a);
|
|
expr += " * ";
|
|
expr += to_extract_component_expression(b, col);
|
|
if (col + 1 < type.columns)
|
|
expr += ", ";
|
|
}
|
|
expr += ")";
|
|
emit_op(result_type, id, expr, should_forward(a) && should_forward(b));
|
|
inherit_expression_dependencies(id, a);
|
|
inherit_expression_dependencies(id, b);
|
|
break;
|
|
}
|
|
|
|
case OpFMod:
|
|
{
|
|
if (!requires_op_fmod)
|
|
{
|
|
requires_op_fmod = true;
|
|
force_recompile();
|
|
}
|
|
CompilerGLSL::emit_instruction(instruction);
|
|
break;
|
|
}
|
|
|
|
case OpFRem:
|
|
emit_binary_func_op(ops[0], ops[1], ops[2], ops[3], "fmod");
|
|
break;
|
|
|
|
case OpImage:
|
|
{
|
|
uint32_t result_type = ops[0];
|
|
uint32_t id = ops[1];
|
|
auto *combined = maybe_get<SPIRCombinedImageSampler>(ops[2]);
|
|
|
|
if (combined)
|
|
{
|
|
auto &e = emit_op(result_type, id, to_expression(combined->image), true, true);
|
|
auto *var = maybe_get_backing_variable(combined->image);
|
|
if (var)
|
|
e.loaded_from = var->self;
|
|
}
|
|
else
|
|
{
|
|
auto &e = emit_op(result_type, id, to_expression(ops[2]), true, true);
|
|
auto *var = maybe_get_backing_variable(ops[2]);
|
|
if (var)
|
|
e.loaded_from = var->self;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case OpDPdx:
|
|
HLSL_UFOP(ddx);
|
|
register_control_dependent_expression(ops[1]);
|
|
break;
|
|
|
|
case OpDPdy:
|
|
HLSL_UFOP(ddy);
|
|
register_control_dependent_expression(ops[1]);
|
|
break;
|
|
|
|
case OpDPdxFine:
|
|
HLSL_UFOP(ddx_fine);
|
|
register_control_dependent_expression(ops[1]);
|
|
break;
|
|
|
|
case OpDPdyFine:
|
|
HLSL_UFOP(ddy_fine);
|
|
register_control_dependent_expression(ops[1]);
|
|
break;
|
|
|
|
case OpDPdxCoarse:
|
|
HLSL_UFOP(ddx_coarse);
|
|
register_control_dependent_expression(ops[1]);
|
|
break;
|
|
|
|
case OpDPdyCoarse:
|
|
HLSL_UFOP(ddy_coarse);
|
|
register_control_dependent_expression(ops[1]);
|
|
break;
|
|
|
|
case OpFwidth:
|
|
case OpFwidthCoarse:
|
|
case OpFwidthFine:
|
|
HLSL_UFOP(fwidth);
|
|
register_control_dependent_expression(ops[1]);
|
|
break;
|
|
|
|
case OpLogicalNot:
|
|
{
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
auto &type = get<SPIRType>(result_type);
|
|
|
|
if (type.vecsize > 1)
|
|
emit_unrolled_unary_op(result_type, id, ops[2], "!");
|
|
else
|
|
HLSL_UOP(!);
|
|
break;
|
|
}
|
|
|
|
case OpIEqual:
|
|
{
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
|
|
if (expression_type(ops[2]).vecsize > 1)
|
|
emit_unrolled_binary_op(result_type, id, ops[2], ops[3], "==", false, SPIRType::Unknown);
|
|
else
|
|
HLSL_BOP_CAST(==, int_type);
|
|
break;
|
|
}
|
|
|
|
case OpLogicalEqual:
|
|
case OpFOrdEqual:
|
|
case OpFUnordEqual:
|
|
{
|
|
// HLSL != operator is unordered.
|
|
// https://docs.microsoft.com/en-us/windows/win32/direct3d10/d3d10-graphics-programming-guide-resources-float-rules.
|
|
// isnan() is apparently implemented as x != x as well.
|
|
// We cannot implement UnordEqual as !(OrdNotEqual), as HLSL cannot express OrdNotEqual.
|
|
// HACK: FUnordEqual will be implemented as FOrdEqual.
|
|
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
|
|
if (expression_type(ops[2]).vecsize > 1)
|
|
emit_unrolled_binary_op(result_type, id, ops[2], ops[3], "==", false, SPIRType::Unknown);
|
|
else
|
|
HLSL_BOP(==);
|
|
break;
|
|
}
|
|
|
|
case OpINotEqual:
|
|
{
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
|
|
if (expression_type(ops[2]).vecsize > 1)
|
|
emit_unrolled_binary_op(result_type, id, ops[2], ops[3], "!=", false, SPIRType::Unknown);
|
|
else
|
|
HLSL_BOP_CAST(!=, int_type);
|
|
break;
|
|
}
|
|
|
|
case OpLogicalNotEqual:
|
|
case OpFOrdNotEqual:
|
|
case OpFUnordNotEqual:
|
|
{
|
|
// HLSL != operator is unordered.
|
|
// https://docs.microsoft.com/en-us/windows/win32/direct3d10/d3d10-graphics-programming-guide-resources-float-rules.
|
|
// isnan() is apparently implemented as x != x as well.
|
|
|
|
// FIXME: FOrdNotEqual cannot be implemented in a crisp and simple way here.
|
|
// We would need to do something like not(UnordEqual), but that cannot be expressed either.
|
|
// Adding a lot of NaN checks would be a breaking change from perspective of performance.
|
|
// SPIR-V will generally use isnan() checks when this even matters.
|
|
// HACK: FOrdNotEqual will be implemented as FUnordEqual.
|
|
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
|
|
if (expression_type(ops[2]).vecsize > 1)
|
|
emit_unrolled_binary_op(result_type, id, ops[2], ops[3], "!=", false, SPIRType::Unknown);
|
|
else
|
|
HLSL_BOP(!=);
|
|
break;
|
|
}
|
|
|
|
case OpUGreaterThan:
|
|
case OpSGreaterThan:
|
|
{
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
auto type = opcode == OpUGreaterThan ? uint_type : int_type;
|
|
|
|
if (expression_type(ops[2]).vecsize > 1)
|
|
emit_unrolled_binary_op(result_type, id, ops[2], ops[3], ">", false, type);
|
|
else
|
|
HLSL_BOP_CAST(>, type);
|
|
break;
|
|
}
|
|
|
|
case OpFOrdGreaterThan:
|
|
{
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
|
|
if (expression_type(ops[2]).vecsize > 1)
|
|
emit_unrolled_binary_op(result_type, id, ops[2], ops[3], ">", false, SPIRType::Unknown);
|
|
else
|
|
HLSL_BOP(>);
|
|
break;
|
|
}
|
|
|
|
case OpFUnordGreaterThan:
|
|
{
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
|
|
if (expression_type(ops[2]).vecsize > 1)
|
|
emit_unrolled_binary_op(result_type, id, ops[2], ops[3], "<=", true, SPIRType::Unknown);
|
|
else
|
|
CompilerGLSL::emit_instruction(instruction);
|
|
break;
|
|
}
|
|
|
|
case OpUGreaterThanEqual:
|
|
case OpSGreaterThanEqual:
|
|
{
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
|
|
auto type = opcode == OpUGreaterThanEqual ? uint_type : int_type;
|
|
if (expression_type(ops[2]).vecsize > 1)
|
|
emit_unrolled_binary_op(result_type, id, ops[2], ops[3], ">=", false, type);
|
|
else
|
|
HLSL_BOP_CAST(>=, type);
|
|
break;
|
|
}
|
|
|
|
case OpFOrdGreaterThanEqual:
|
|
{
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
|
|
if (expression_type(ops[2]).vecsize > 1)
|
|
emit_unrolled_binary_op(result_type, id, ops[2], ops[3], ">=", false, SPIRType::Unknown);
|
|
else
|
|
HLSL_BOP(>=);
|
|
break;
|
|
}
|
|
|
|
case OpFUnordGreaterThanEqual:
|
|
{
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
|
|
if (expression_type(ops[2]).vecsize > 1)
|
|
emit_unrolled_binary_op(result_type, id, ops[2], ops[3], "<", true, SPIRType::Unknown);
|
|
else
|
|
CompilerGLSL::emit_instruction(instruction);
|
|
break;
|
|
}
|
|
|
|
case OpULessThan:
|
|
case OpSLessThan:
|
|
{
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
|
|
auto type = opcode == OpULessThan ? uint_type : int_type;
|
|
if (expression_type(ops[2]).vecsize > 1)
|
|
emit_unrolled_binary_op(result_type, id, ops[2], ops[3], "<", false, type);
|
|
else
|
|
HLSL_BOP_CAST(<, type);
|
|
break;
|
|
}
|
|
|
|
case OpFOrdLessThan:
|
|
{
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
|
|
if (expression_type(ops[2]).vecsize > 1)
|
|
emit_unrolled_binary_op(result_type, id, ops[2], ops[3], "<", false, SPIRType::Unknown);
|
|
else
|
|
HLSL_BOP(<);
|
|
break;
|
|
}
|
|
|
|
case OpFUnordLessThan:
|
|
{
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
|
|
if (expression_type(ops[2]).vecsize > 1)
|
|
emit_unrolled_binary_op(result_type, id, ops[2], ops[3], ">=", true, SPIRType::Unknown);
|
|
else
|
|
CompilerGLSL::emit_instruction(instruction);
|
|
break;
|
|
}
|
|
|
|
case OpULessThanEqual:
|
|
case OpSLessThanEqual:
|
|
{
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
|
|
auto type = opcode == OpULessThanEqual ? uint_type : int_type;
|
|
if (expression_type(ops[2]).vecsize > 1)
|
|
emit_unrolled_binary_op(result_type, id, ops[2], ops[3], "<=", false, type);
|
|
else
|
|
HLSL_BOP_CAST(<=, type);
|
|
break;
|
|
}
|
|
|
|
case OpFOrdLessThanEqual:
|
|
{
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
|
|
if (expression_type(ops[2]).vecsize > 1)
|
|
emit_unrolled_binary_op(result_type, id, ops[2], ops[3], "<=", false, SPIRType::Unknown);
|
|
else
|
|
HLSL_BOP(<=);
|
|
break;
|
|
}
|
|
|
|
case OpFUnordLessThanEqual:
|
|
{
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
|
|
if (expression_type(ops[2]).vecsize > 1)
|
|
emit_unrolled_binary_op(result_type, id, ops[2], ops[3], ">", true, SPIRType::Unknown);
|
|
else
|
|
CompilerGLSL::emit_instruction(instruction);
|
|
break;
|
|
}
|
|
|
|
case OpImageQueryLod:
|
|
emit_texture_op(instruction);
|
|
break;
|
|
|
|
case OpImageQuerySizeLod:
|
|
{
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
|
|
require_texture_query_variant(ops[2]);
|
|
auto dummy_samples_levels = join(get_fallback_name(id), "_dummy_parameter");
|
|
statement("uint ", dummy_samples_levels, ";");
|
|
|
|
auto expr = join("SPIRV_Cross_textureSize(", to_expression(ops[2]), ", ",
|
|
bitcast_expression(SPIRType::UInt, ops[3]), ", ", dummy_samples_levels, ")");
|
|
|
|
auto &restype = get<SPIRType>(ops[0]);
|
|
expr = bitcast_expression(restype, SPIRType::UInt, expr);
|
|
emit_op(result_type, id, expr, true);
|
|
break;
|
|
}
|
|
|
|
case OpImageQuerySize:
|
|
{
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
|
|
require_texture_query_variant(ops[2]);
|
|
bool uav = expression_type(ops[2]).image.sampled == 2;
|
|
|
|
if (const auto *var = maybe_get_backing_variable(ops[2]))
|
|
if (hlsl_options.nonwritable_uav_texture_as_srv && has_decoration(var->self, DecorationNonWritable))
|
|
uav = false;
|
|
|
|
auto dummy_samples_levels = join(get_fallback_name(id), "_dummy_parameter");
|
|
statement("uint ", dummy_samples_levels, ";");
|
|
|
|
string expr;
|
|
if (uav)
|
|
expr = join("SPIRV_Cross_imageSize(", to_expression(ops[2]), ", ", dummy_samples_levels, ")");
|
|
else
|
|
expr = join("SPIRV_Cross_textureSize(", to_expression(ops[2]), ", 0u, ", dummy_samples_levels, ")");
|
|
|
|
auto &restype = get<SPIRType>(ops[0]);
|
|
expr = bitcast_expression(restype, SPIRType::UInt, expr);
|
|
emit_op(result_type, id, expr, true);
|
|
break;
|
|
}
|
|
|
|
case OpImageQuerySamples:
|
|
case OpImageQueryLevels:
|
|
{
|
|
auto result_type = ops[0];
|
|
auto id = ops[1];
|
|
|
|
require_texture_query_variant(ops[2]);
|
|
bool uav = expression_type(ops[2]).image.sampled == 2;
|
|
if (opcode == OpImageQueryLevels && uav)
|
|
SPIRV_CROSS_THROW("Cannot query levels for UAV images.");
|
|
|
|
if (const auto *var = maybe_get_backing_variable(ops[2]))
|
|
if (hlsl_options.nonwritable_uav_texture_as_srv && has_decoration(var->self, DecorationNonWritable))
|
|
uav = false;
|
|
|
|
// Keep it simple and do not emit special variants to make this look nicer ...
|
|
// This stuff is barely, if ever, used.
|
|
forced_temporaries.insert(id);
|
|
auto &type = get<SPIRType>(result_type);
|
|
statement(variable_decl(type, to_name(id)), ";");
|
|
|
|
if (uav)
|
|
statement("SPIRV_Cross_imageSize(", to_expression(ops[2]), ", ", to_name(id), ");");
|
|
else
|
|
statement("SPIRV_Cross_textureSize(", to_expression(ops[2]), ", 0u, ", to_name(id), ");");
|
|
|
|
auto &restype = get<SPIRType>(ops[0]);
|
|
auto expr = bitcast_expression(restype, SPIRType::UInt, to_name(id));
|
|
set<SPIRExpression>(id, expr, result_type, true);
|
|
break;
|
|
}
|
|
|
|
case OpImageRead:
|
|
{
|
|
uint32_t result_type = ops[0];
|
|
uint32_t id = ops[1];
|
|
auto *var = maybe_get_backing_variable(ops[2]);
|
|
auto &type = expression_type(ops[2]);
|
|
bool subpass_data = type.image.dim == DimSubpassData;
|
|
bool pure = false;
|
|
|
|
string imgexpr;
|
|
|
|
if (subpass_data)
|
|
{
|
|
if (hlsl_options.shader_model < 40)
|
|
SPIRV_CROSS_THROW("Subpass loads are not supported in HLSL shader model 2/3.");
|
|
|
|
// Similar to GLSL, implement subpass loads using texelFetch.
|
|
if (type.image.ms)
|
|
{
|
|
uint32_t operands = ops[4];
|
|
if (operands != ImageOperandsSampleMask || instruction.length != 6)
|
|
SPIRV_CROSS_THROW("Multisampled image used in OpImageRead, but unexpected operand mask was used.");
|
|
uint32_t sample = ops[5];
|
|
imgexpr = join(to_expression(ops[2]), ".Load(int2(gl_FragCoord.xy), ", to_expression(sample), ")");
|
|
}
|
|
else
|
|
imgexpr = join(to_expression(ops[2]), ".Load(int3(int2(gl_FragCoord.xy), 0))");
|
|
|
|
pure = true;
|
|
}
|
|
else
|
|
{
|
|
imgexpr = join(to_expression(ops[2]), "[", to_expression(ops[3]), "]");
|
|
// The underlying image type in HLSL depends on the image format, unlike GLSL, where all images are "vec4",
|
|
// except that the underlying type changes how the data is interpreted.
|
|
|
|
bool force_srv =
|
|
hlsl_options.nonwritable_uav_texture_as_srv && var && has_decoration(var->self, DecorationNonWritable);
|
|
pure = force_srv;
|
|
|
|
if (var && !subpass_data && !force_srv)
|
|
imgexpr = remap_swizzle(get<SPIRType>(result_type),
|
|
image_format_to_components(get<SPIRType>(var->basetype).image.format), imgexpr);
|
|
}
|
|
|
|
if (var && var->forwardable)
|
|
{
|
|
bool forward = forced_temporaries.find(id) == end(forced_temporaries);
|
|
auto &e = emit_op(result_type, id, imgexpr, forward);
|
|
|
|
if (!pure)
|
|
{
|
|
e.loaded_from = var->self;
|
|
if (forward)
|
|
var->dependees.push_back(id);
|
|
}
|
|
}
|
|
else
|
|
emit_op(result_type, id, imgexpr, false);
|
|
|
|
inherit_expression_dependencies(id, ops[2]);
|
|
if (type.image.ms)
|
|
inherit_expression_dependencies(id, ops[5]);
|
|
break;
|
|
}
|
|
|
|
case OpImageWrite:
|
|
{
|
|
auto *var = maybe_get_backing_variable(ops[0]);
|
|
|
|
// The underlying image type in HLSL depends on the image format, unlike GLSL, where all images are "vec4",
|
|
// except that the underlying type changes how the data is interpreted.
|
|
auto value_expr = to_expression(ops[2]);
|
|
if (var)
|
|
{
|
|
auto &type = get<SPIRType>(var->basetype);
|
|
auto narrowed_type = get<SPIRType>(type.image.type);
|
|
narrowed_type.vecsize = image_format_to_components(type.image.format);
|
|
value_expr = remap_swizzle(narrowed_type, expression_type(ops[2]).vecsize, value_expr);
|
|
}
|
|
|
|
statement(to_expression(ops[0]), "[", to_expression(ops[1]), "] = ", value_expr, ";");
|
|
if (var && variable_storage_is_aliased(*var))
|
|
flush_all_aliased_variables();
|
|
break;
|
|
}
|
|
|
|
case OpImageTexelPointer:
|
|
{
|
|
uint32_t result_type = ops[0];
|
|
uint32_t id = ops[1];
|
|
|
|
auto expr = to_expression(ops[2]);
|
|
if (has_decoration(id, DecorationNonUniformEXT) || has_decoration(ops[2], DecorationNonUniformEXT))
|
|
convert_non_uniform_expression(expression_type(ops[2]), expr);
|
|
expr += join("[", to_expression(ops[3]), "]");
|
|
|
|
auto &e = set<SPIRExpression>(id, expr, result_type, true);
|
|
|
|
// When using the pointer, we need to know which variable it is actually loaded from.
|
|
auto *var = maybe_get_backing_variable(ops[2]);
|
|
e.loaded_from = var ? var->self : ID(0);
|
|
inherit_expression_dependencies(id, ops[3]);
|
|
break;
|
|
}
|
|
|
|
case OpAtomicCompareExchange:
|
|
case OpAtomicExchange:
|
|
case OpAtomicISub:
|
|
case OpAtomicSMin:
|
|
case OpAtomicUMin:
|
|
case OpAtomicSMax:
|
|
case OpAtomicUMax:
|
|
case OpAtomicAnd:
|
|
case OpAtomicOr:
|
|
case OpAtomicXor:
|
|
case OpAtomicIAdd:
|
|
case OpAtomicIIncrement:
|
|
case OpAtomicIDecrement:
|
|
case OpAtomicLoad:
|
|
case OpAtomicStore:
|
|
{
|
|
emit_atomic(ops, instruction.length, opcode);
|
|
break;
|
|
}
|
|
|
|
case OpControlBarrier:
|
|
case OpMemoryBarrier:
|
|
{
|
|
uint32_t memory;
|
|
uint32_t semantics;
|
|
|
|
if (opcode == OpMemoryBarrier)
|
|
{
|
|
memory = get<SPIRConstant>(ops[0]).scalar();
|
|
semantics = get<SPIRConstant>(ops[1]).scalar();
|
|
}
|
|
else
|
|
{
|
|
memory = get<SPIRConstant>(ops[1]).scalar();
|
|
semantics = get<SPIRConstant>(ops[2]).scalar();
|
|
}
|
|
|
|
if (memory == ScopeSubgroup)
|
|
{
|
|
// No Wave-barriers in HLSL.
|
|
break;
|
|
}
|
|
|
|
// We only care about these flags, acquire/release and friends are not relevant to GLSL.
|
|
semantics = mask_relevant_memory_semantics(semantics);
|
|
|
|
if (opcode == OpMemoryBarrier)
|
|
{
|
|
// If we are a memory barrier, and the next instruction is a control barrier, check if that memory barrier
|
|
// does what we need, so we avoid redundant barriers.
|
|
const Instruction *next = get_next_instruction_in_block(instruction);
|
|
if (next && next->op == OpControlBarrier)
|
|
{
|
|
auto *next_ops = stream(*next);
|
|
uint32_t next_memory = get<SPIRConstant>(next_ops[1]).scalar();
|
|
uint32_t next_semantics = get<SPIRConstant>(next_ops[2]).scalar();
|
|
next_semantics = mask_relevant_memory_semantics(next_semantics);
|
|
|
|
// There is no "just execution barrier" in HLSL.
|
|
// If there are no memory semantics for next instruction, we will imply group shared memory is synced.
|
|
if (next_semantics == 0)
|
|
next_semantics = MemorySemanticsWorkgroupMemoryMask;
|
|
|
|
bool memory_scope_covered = false;
|
|
if (next_memory == memory)
|
|
memory_scope_covered = true;
|
|
else if (next_semantics == MemorySemanticsWorkgroupMemoryMask)
|
|
{
|
|
// If we only care about workgroup memory, either Device or Workgroup scope is fine,
|
|
// scope does not have to match.
|
|
if ((next_memory == ScopeDevice || next_memory == ScopeWorkgroup) &&
|
|
(memory == ScopeDevice || memory == ScopeWorkgroup))
|
|
{
|
|
memory_scope_covered = true;
|
|
}
|
|
}
|
|
else if (memory == ScopeWorkgroup && next_memory == ScopeDevice)
|
|
{
|
|
// The control barrier has device scope, but the memory barrier just has workgroup scope.
|
|
memory_scope_covered = true;
|
|
}
|
|
|
|
// If we have the same memory scope, and all memory types are covered, we're good.
|
|
if (memory_scope_covered && (semantics & next_semantics) == semantics)
|
|
break;
|
|
}
|
|
}
|
|
|
|
// We are synchronizing some memory or syncing execution,
|
|
// so we cannot forward any loads beyond the memory barrier.
|
|
if (semantics || opcode == OpControlBarrier)
|
|
{
|
|
assert(current_emitting_block);
|
|
flush_control_dependent_expressions(current_emitting_block->self);
|
|
flush_all_active_variables();
|
|
}
|
|
|
|
if (opcode == OpControlBarrier)
|
|
{
|
|
// We cannot emit just execution barrier, for no memory semantics pick the cheapest option.
|
|
if (semantics == MemorySemanticsWorkgroupMemoryMask || semantics == 0)
|
|
statement("GroupMemoryBarrierWithGroupSync();");
|
|
else if (semantics != 0 && (semantics & MemorySemanticsWorkgroupMemoryMask) == 0)
|
|
statement("DeviceMemoryBarrierWithGroupSync();");
|
|
else
|
|
statement("AllMemoryBarrierWithGroupSync();");
|
|
}
|
|
else
|
|
{
|
|
if (semantics == MemorySemanticsWorkgroupMemoryMask)
|
|
statement("GroupMemoryBarrier();");
|
|
else if (semantics != 0 && (semantics & MemorySemanticsWorkgroupMemoryMask) == 0)
|
|
statement("DeviceMemoryBarrier();");
|
|
else
|
|
statement("AllMemoryBarrier();");
|
|
}
|
|
break;
|
|
}
|
|
|
|
case OpBitFieldInsert:
|
|
{
|
|
if (!requires_bitfield_insert)
|
|
{
|
|
requires_bitfield_insert = true;
|
|
force_recompile();
|
|
}
|
|
|
|
auto expr = join("SPIRV_Cross_bitfieldInsert(", to_expression(ops[2]), ", ", to_expression(ops[3]), ", ",
|
|
to_expression(ops[4]), ", ", to_expression(ops[5]), ")");
|
|
|
|
bool forward =
|
|
should_forward(ops[2]) && should_forward(ops[3]) && should_forward(ops[4]) && should_forward(ops[5]);
|
|
|
|
auto &restype = get<SPIRType>(ops[0]);
|
|
expr = bitcast_expression(restype, SPIRType::UInt, expr);
|
|
emit_op(ops[0], ops[1], expr, forward);
|
|
break;
|
|
}
|
|
|
|
case OpBitFieldSExtract:
|
|
case OpBitFieldUExtract:
|
|
{
|
|
if (!requires_bitfield_extract)
|
|
{
|
|
requires_bitfield_extract = true;
|
|
force_recompile();
|
|
}
|
|
|
|
if (opcode == OpBitFieldSExtract)
|
|
HLSL_TFOP(SPIRV_Cross_bitfieldSExtract);
|
|
else
|
|
HLSL_TFOP(SPIRV_Cross_bitfieldUExtract);
|
|
break;
|
|
}
|
|
|
|
case OpBitCount:
|
|
{
|
|
auto basetype = expression_type(ops[2]).basetype;
|
|
emit_unary_func_op_cast(ops[0], ops[1], ops[2], "countbits", basetype, basetype);
|
|
break;
|
|
}
|
|
|
|
case OpBitReverse:
|
|
HLSL_UFOP(reversebits);
|
|
break;
|
|
|
|
case OpArrayLength:
|
|
{
|
|
auto *var = maybe_get<SPIRVariable>(ops[2]);
|
|
if (!var)
|
|
SPIRV_CROSS_THROW("Array length must point directly to an SSBO block.");
|
|
|
|
auto &type = get<SPIRType>(var->basetype);
|
|
if (!has_decoration(type.self, DecorationBlock) && !has_decoration(type.self, DecorationBufferBlock))
|
|
SPIRV_CROSS_THROW("Array length expression must point to a block type.");
|
|
|
|
// This must be 32-bit uint, so we're good to go.
|
|
emit_uninitialized_temporary_expression(ops[0], ops[1]);
|
|
statement(to_expression(ops[2]), ".GetDimensions(", to_expression(ops[1]), ");");
|
|
uint32_t offset = type_struct_member_offset(type, ops[3]);
|
|
uint32_t stride = type_struct_member_array_stride(type, ops[3]);
|
|
statement(to_expression(ops[1]), " = (", to_expression(ops[1]), " - ", offset, ") / ", stride, ";");
|
|
break;
|
|
}
|
|
|
|
case OpIsHelperInvocationEXT:
|
|
SPIRV_CROSS_THROW("helperInvocationEXT() is not supported in HLSL.");
|
|
|
|
case OpBeginInvocationInterlockEXT:
|
|
case OpEndInvocationInterlockEXT:
|
|
if (hlsl_options.shader_model < 51)
|
|
SPIRV_CROSS_THROW("Rasterizer order views require Shader Model 5.1.");
|
|
break; // Nothing to do in the body
|
|
|
|
default:
|
|
CompilerGLSL::emit_instruction(instruction);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void CompilerHLSL::require_texture_query_variant(uint32_t var_id)
|
|
{
|
|
if (const auto *var = maybe_get_backing_variable(var_id))
|
|
var_id = var->self;
|
|
|
|
auto &type = expression_type(var_id);
|
|
bool uav = type.image.sampled == 2;
|
|
if (hlsl_options.nonwritable_uav_texture_as_srv && has_decoration(var_id, DecorationNonWritable))
|
|
uav = false;
|
|
|
|
uint32_t bit = 0;
|
|
switch (type.image.dim)
|
|
{
|
|
case Dim1D:
|
|
bit = type.image.arrayed ? Query1DArray : Query1D;
|
|
break;
|
|
|
|
case Dim2D:
|
|
if (type.image.ms)
|
|
bit = type.image.arrayed ? Query2DMSArray : Query2DMS;
|
|
else
|
|
bit = type.image.arrayed ? Query2DArray : Query2D;
|
|
break;
|
|
|
|
case Dim3D:
|
|
bit = Query3D;
|
|
break;
|
|
|
|
case DimCube:
|
|
bit = type.image.arrayed ? QueryCubeArray : QueryCube;
|
|
break;
|
|
|
|
case DimBuffer:
|
|
bit = QueryBuffer;
|
|
break;
|
|
|
|
default:
|
|
SPIRV_CROSS_THROW("Unsupported query type.");
|
|
}
|
|
|
|
switch (get<SPIRType>(type.image.type).basetype)
|
|
{
|
|
case SPIRType::Float:
|
|
bit += QueryTypeFloat;
|
|
break;
|
|
|
|
case SPIRType::Int:
|
|
bit += QueryTypeInt;
|
|
break;
|
|
|
|
case SPIRType::UInt:
|
|
bit += QueryTypeUInt;
|
|
break;
|
|
|
|
default:
|
|
SPIRV_CROSS_THROW("Unsupported query type.");
|
|
}
|
|
|
|
auto norm_state = image_format_to_normalized_state(type.image.format);
|
|
auto &variant = uav ? required_texture_size_variants.uav[uint32_t(norm_state)][image_format_to_components(type.image.format) - 1] :
|
|
required_texture_size_variants.srv;
|
|
|
|
uint64_t mask = 1ull << bit;
|
|
if ((variant & mask) == 0)
|
|
{
|
|
force_recompile();
|
|
variant |= mask;
|
|
}
|
|
}
|
|
|
|
void CompilerHLSL::set_root_constant_layouts(std::vector<RootConstants> layout)
|
|
{
|
|
root_constants_layout = move(layout);
|
|
}
|
|
|
|
void CompilerHLSL::add_vertex_attribute_remap(const HLSLVertexAttributeRemap &vertex_attributes)
|
|
{
|
|
remap_vertex_attributes.push_back(vertex_attributes);
|
|
}
|
|
|
|
VariableID CompilerHLSL::remap_num_workgroups_builtin()
|
|
{
|
|
update_active_builtins();
|
|
|
|
if (!active_input_builtins.get(BuiltInNumWorkgroups))
|
|
return 0;
|
|
|
|
// Create a new, fake UBO.
|
|
uint32_t offset = ir.increase_bound_by(4);
|
|
|
|
uint32_t uint_type_id = offset;
|
|
uint32_t block_type_id = offset + 1;
|
|
uint32_t block_pointer_type_id = offset + 2;
|
|
uint32_t variable_id = offset + 3;
|
|
|
|
SPIRType uint_type;
|
|
uint_type.basetype = SPIRType::UInt;
|
|
uint_type.width = 32;
|
|
uint_type.vecsize = 3;
|
|
uint_type.columns = 1;
|
|
set<SPIRType>(uint_type_id, uint_type);
|
|
|
|
SPIRType block_type;
|
|
block_type.basetype = SPIRType::Struct;
|
|
block_type.member_types.push_back(uint_type_id);
|
|
set<SPIRType>(block_type_id, block_type);
|
|
set_decoration(block_type_id, DecorationBlock);
|
|
set_member_name(block_type_id, 0, "count");
|
|
set_member_decoration(block_type_id, 0, DecorationOffset, 0);
|
|
|
|
SPIRType block_pointer_type = block_type;
|
|
block_pointer_type.pointer = true;
|
|
block_pointer_type.storage = StorageClassUniform;
|
|
block_pointer_type.parent_type = block_type_id;
|
|
auto &ptr_type = set<SPIRType>(block_pointer_type_id, block_pointer_type);
|
|
|
|
// Preserve self.
|
|
ptr_type.self = block_type_id;
|
|
|
|
set<SPIRVariable>(variable_id, block_pointer_type_id, StorageClassUniform);
|
|
ir.meta[variable_id].decoration.alias = "SPIRV_Cross_NumWorkgroups";
|
|
|
|
num_workgroups_builtin = variable_id;
|
|
return variable_id;
|
|
}
|
|
|
|
void CompilerHLSL::set_resource_binding_flags(HLSLBindingFlags flags)
|
|
{
|
|
resource_binding_flags = flags;
|
|
}
|
|
|
|
void CompilerHLSL::validate_shader_model()
|
|
{
|
|
// Check for nonuniform qualifier.
|
|
// Instead of looping over all decorations to find this, just look at capabilities.
|
|
for (auto &cap : ir.declared_capabilities)
|
|
{
|
|
switch (cap)
|
|
{
|
|
case CapabilityShaderNonUniformEXT:
|
|
case CapabilityRuntimeDescriptorArrayEXT:
|
|
if (hlsl_options.shader_model < 51)
|
|
SPIRV_CROSS_THROW(
|
|
"Shader model 5.1 or higher is required to use bindless resources or NonUniformResourceIndex.");
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (ir.addressing_model != AddressingModelLogical)
|
|
SPIRV_CROSS_THROW("Only Logical addressing model can be used with HLSL.");
|
|
}
|
|
|
|
string CompilerHLSL::compile()
|
|
{
|
|
// Do not deal with ES-isms like precision, older extensions and such.
|
|
options.es = false;
|
|
options.version = 450;
|
|
options.vulkan_semantics = true;
|
|
backend.float_literal_suffix = true;
|
|
backend.double_literal_suffix = false;
|
|
backend.long_long_literal_suffix = true;
|
|
backend.uint32_t_literal_suffix = true;
|
|
backend.int16_t_literal_suffix = "";
|
|
backend.uint16_t_literal_suffix = "u";
|
|
backend.basic_int_type = "int";
|
|
backend.basic_uint_type = "uint";
|
|
backend.demote_literal = "discard";
|
|
backend.boolean_mix_function = "";
|
|
backend.swizzle_is_function = false;
|
|
backend.shared_is_implied = true;
|
|
backend.unsized_array_supported = true;
|
|
backend.explicit_struct_type = false;
|
|
backend.use_initializer_list = true;
|
|
backend.use_constructor_splatting = false;
|
|
backend.can_swizzle_scalar = true;
|
|
backend.can_declare_struct_inline = false;
|
|
backend.can_declare_arrays_inline = false;
|
|
backend.can_return_array = false;
|
|
backend.nonuniform_qualifier = "NonUniformResourceIndex";
|
|
backend.support_case_fallthrough = false;
|
|
|
|
fixup_type_alias();
|
|
reorder_type_alias();
|
|
build_function_control_flow_graphs_and_analyze();
|
|
validate_shader_model();
|
|
update_active_builtins();
|
|
analyze_image_and_sampler_usage();
|
|
analyze_interlocked_resource_usage();
|
|
|
|
// Subpass input needs SV_Position.
|
|
if (need_subpass_input)
|
|
active_input_builtins.set(BuiltInFragCoord);
|
|
|
|
uint32_t pass_count = 0;
|
|
do
|
|
{
|
|
if (pass_count >= 3)
|
|
SPIRV_CROSS_THROW("Over 3 compilation loops detected. Must be a bug!");
|
|
|
|
reset();
|
|
|
|
// Move constructor for this type is broken on GCC 4.9 ...
|
|
buffer.reset();
|
|
|
|
emit_header();
|
|
emit_resources();
|
|
|
|
emit_function(get<SPIRFunction>(ir.default_entry_point), Bitset());
|
|
emit_hlsl_entry_point();
|
|
|
|
pass_count++;
|
|
} while (is_forcing_recompilation());
|
|
|
|
// Entry point in HLSL is always main() for the time being.
|
|
get_entry_point().name = "main";
|
|
|
|
return buffer.str();
|
|
}
|
|
|
|
void CompilerHLSL::emit_block_hints(const SPIRBlock &block)
|
|
{
|
|
switch (block.hint)
|
|
{
|
|
case SPIRBlock::HintFlatten:
|
|
statement("[flatten]");
|
|
break;
|
|
case SPIRBlock::HintDontFlatten:
|
|
statement("[branch]");
|
|
break;
|
|
case SPIRBlock::HintUnroll:
|
|
statement("[unroll]");
|
|
break;
|
|
case SPIRBlock::HintDontUnroll:
|
|
statement("[loop]");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
string CompilerHLSL::get_unique_identifier()
|
|
{
|
|
return join("_", unique_identifier_count++, "ident");
|
|
}
|
|
|
|
void CompilerHLSL::add_hlsl_resource_binding(const HLSLResourceBinding &binding)
|
|
{
|
|
StageSetBinding tuple = { binding.stage, binding.desc_set, binding.binding };
|
|
resource_bindings[tuple] = { binding, false };
|
|
}
|
|
|
|
bool CompilerHLSL::is_hlsl_resource_binding_used(ExecutionModel model, uint32_t desc_set, uint32_t binding) const
|
|
{
|
|
StageSetBinding tuple = { model, desc_set, binding };
|
|
auto itr = resource_bindings.find(tuple);
|
|
return itr != end(resource_bindings) && itr->second.second;
|
|
}
|
|
|
|
CompilerHLSL::BitcastType CompilerHLSL::get_bitcast_type(uint32_t result_type, uint32_t op0)
|
|
{
|
|
auto &rslt_type = get<SPIRType>(result_type);
|
|
auto &expr_type = expression_type(op0);
|
|
|
|
if (rslt_type.basetype == SPIRType::BaseType::UInt64 && expr_type.basetype == SPIRType::BaseType::UInt &&
|
|
expr_type.vecsize == 2)
|
|
return BitcastType::TypePackUint2x32;
|
|
else if (rslt_type.basetype == SPIRType::BaseType::UInt && rslt_type.vecsize == 2 &&
|
|
expr_type.basetype == SPIRType::BaseType::UInt64)
|
|
return BitcastType::TypeUnpackUint64;
|
|
|
|
return BitcastType::TypeNormal;
|
|
}
|