diff options
Diffstat (limited to 'src/3rdparty/angle/src/compiler/translator/UtilsHLSL.cpp')
| -rw-r--r-- | src/3rdparty/angle/src/compiler/translator/UtilsHLSL.cpp | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/compiler/translator/UtilsHLSL.cpp b/src/3rdparty/angle/src/compiler/translator/UtilsHLSL.cpp new file mode 100644 index 0000000000..de0c36ca65 --- /dev/null +++ b/src/3rdparty/angle/src/compiler/translator/UtilsHLSL.cpp @@ -0,0 +1,243 @@ +// +// Copyright (c) 2014 The ANGLE Project Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. +// +// UtilsHLSL.cpp: +// Utility methods for GLSL to HLSL translation. +// + +#include "compiler/translator/UtilsHLSL.h" +#include "compiler/translator/StructureHLSL.h" +#include "compiler/translator/SymbolTable.h" + +namespace sh +{ + +TString SamplerString(const TType &type) +{ + if (IsShadowSampler(type.getBasicType())) + { + return "SamplerComparisonState"; + } + else + { + return "SamplerState"; + } +} + +TString TextureString(const TType &type) +{ + switch (type.getBasicType()) + { + case EbtSampler2D: return "Texture2D"; + case EbtSamplerCube: return "TextureCube"; + case EbtSamplerExternalOES: return "Texture2D"; + case EbtSampler2DArray: return "Texture2DArray"; + case EbtSampler3D: return "Texture3D"; + case EbtISampler2D: return "Texture2D<int4>"; + case EbtISampler3D: return "Texture3D<int4>"; + case EbtISamplerCube: return "Texture2DArray<int4>"; + case EbtISampler2DArray: return "Texture2DArray<int4>"; + case EbtUSampler2D: return "Texture2D<uint4>"; + case EbtUSampler3D: return "Texture3D<uint4>"; + case EbtUSamplerCube: return "Texture2DArray<uint4>"; + case EbtUSampler2DArray: return "Texture2DArray<uint4>"; + case EbtSampler2DShadow: return "Texture2D"; + case EbtSamplerCubeShadow: return "TextureCube"; + case EbtSampler2DArrayShadow: return "Texture2DArray"; + default: UNREACHABLE(); + } + + return "<unknown texture type>"; +} + +TString DecorateUniform(const TString &string, const TType &type) +{ + if (type.getBasicType() == EbtSamplerExternalOES) + { + return "ex_" + string; + } + + return Decorate(string); +} + +TString DecorateField(const TString &string, const TStructure &structure) +{ + if (structure.name().compare(0, 3, "gl_") != 0) + { + return Decorate(string); + } + + return string; +} + +TString DecoratePrivate(const TString &privateText) +{ + return "dx_" + privateText; +} + +TString Decorate(const TString &string) +{ + if (string.compare(0, 3, "gl_") != 0) + { + return "_" + string; + } + + return string; +} + +TString TypeString(const TType &type) +{ + const TStructure* structure = type.getStruct(); + if (structure) + { + const TString& typeName = structure->name(); + if (typeName != "") + { + return StructNameString(*structure); + } + else // Nameless structure, define in place + { + return StructureHLSL::defineNameless(*structure); + } + } + else if (type.isMatrix()) + { + int cols = type.getCols(); + int rows = type.getRows(); + return "float" + str(cols) + "x" + str(rows); + } + else + { + switch (type.getBasicType()) + { + case EbtFloat: + switch (type.getNominalSize()) + { + case 1: return "float"; + case 2: return "float2"; + case 3: return "float3"; + case 4: return "float4"; + } + case EbtInt: + switch (type.getNominalSize()) + { + case 1: return "int"; + case 2: return "int2"; + case 3: return "int3"; + case 4: return "int4"; + } + case EbtUInt: + switch (type.getNominalSize()) + { + case 1: return "uint"; + case 2: return "uint2"; + case 3: return "uint3"; + case 4: return "uint4"; + } + case EbtBool: + switch (type.getNominalSize()) + { + case 1: return "bool"; + case 2: return "bool2"; + case 3: return "bool3"; + case 4: return "bool4"; + } + case EbtVoid: + return "void"; + case EbtSampler2D: + case EbtISampler2D: + case EbtUSampler2D: + case EbtSampler2DArray: + case EbtISampler2DArray: + case EbtUSampler2DArray: + return "sampler2D"; + case EbtSamplerCube: + case EbtISamplerCube: + case EbtUSamplerCube: + return "samplerCUBE"; + case EbtSamplerExternalOES: + return "sampler2D"; + default: + break; + } + } + + UNREACHABLE(); + return "<unknown type>"; +} + +TString StructNameString(const TStructure &structure) +{ + if (structure.name().empty()) + { + return ""; + } + + return "ss" + str(structure.uniqueId()) + "_" + structure.name(); +} + +TString QualifiedStructNameString(const TStructure &structure, bool useHLSLRowMajorPacking, + bool useStd140Packing) +{ + if (structure.name() == "") + { + return ""; + } + + TString prefix = ""; + + // Structs packed with row-major matrices in HLSL are prefixed with "rm" + // GLSL column-major maps to HLSL row-major, and the converse is true + + if (useStd140Packing) + { + prefix += "std_"; + } + + if (useHLSLRowMajorPacking) + { + prefix += "rm_"; + } + + return prefix + StructNameString(structure); +} + +TString InterpolationString(TQualifier qualifier) +{ + switch (qualifier) + { + case EvqVaryingIn: return ""; + case EvqFragmentIn: return ""; + case EvqInvariantVaryingIn: return ""; + case EvqSmoothIn: return "linear"; + case EvqFlatIn: return "nointerpolation"; + case EvqCentroidIn: return "centroid"; + case EvqVaryingOut: return ""; + case EvqVertexOut: return ""; + case EvqInvariantVaryingOut: return ""; + case EvqSmoothOut: return "linear"; + case EvqFlatOut: return "nointerpolation"; + case EvqCentroidOut: return "centroid"; + default: UNREACHABLE(); + } + + return ""; +} + +TString QualifierString(TQualifier qualifier) +{ + switch (qualifier) + { + case EvqIn: return "in"; + case EvqOut: return "inout"; // 'out' results in an HLSL error if not all fields are written, for GLSL it's undefined + case EvqInOut: return "inout"; + case EvqConstReadOnly: return "const"; + default: UNREACHABLE(); + } + + return ""; +} + +} |