diff options
Diffstat (limited to 'src/3rdparty/angle/src/compiler/OutputHLSL.cpp')
-rw-r--r-- | src/3rdparty/angle/src/compiler/OutputHLSL.cpp | 2664 |
1 files changed, 2664 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/compiler/OutputHLSL.cpp b/src/3rdparty/angle/src/compiler/OutputHLSL.cpp new file mode 100644 index 0000000000..a430695744 --- /dev/null +++ b/src/3rdparty/angle/src/compiler/OutputHLSL.cpp @@ -0,0 +1,2664 @@ +// +// Copyright (c) 2002-2012 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. +// + +#include "compiler/OutputHLSL.h" + +#include "common/angleutils.h" +#include "compiler/debug.h" +#include "compiler/InfoSink.h" +#include "compiler/UnfoldShortCircuit.h" +#include "compiler/SearchSymbol.h" +#include "compiler/DetectDiscontinuity.h" + +#include <stdio.h> +#include <algorithm> + +namespace sh +{ +// Integer to TString conversion +TString str(int i) +{ + char buffer[20]; + snprintf(buffer, sizeof(buffer), "%d", i); + return buffer; +} + +OutputHLSL::OutputHLSL(TParseContext &context) : TIntermTraverser(true, true, true), mContext(context) +{ + mUnfoldShortCircuit = new UnfoldShortCircuit(context, this); + mInsideFunction = false; + + mUsesTexture2D = false; + mUsesTexture2D_bias = false; + mUsesTexture2DProj = false; + mUsesTexture2DProj_bias = false; + mUsesTexture2DProjLod = false; + mUsesTexture2DLod = false; + mUsesTextureCube = false; + mUsesTextureCube_bias = false; + mUsesTextureCubeLod = false; + mUsesTexture2DLod0 = false; + mUsesTexture2DLod0_bias = false; + mUsesTexture2DProjLod0 = false; + mUsesTexture2DProjLod0_bias = false; + mUsesTextureCubeLod0 = false; + mUsesTextureCubeLod0_bias = false; + mUsesDepthRange = false; + mUsesFragCoord = false; + mUsesPointCoord = false; + mUsesFrontFacing = false; + mUsesPointSize = false; + mUsesXor = false; + mUsesMod1 = false; + mUsesMod2v = false; + mUsesMod2f = false; + mUsesMod3v = false; + mUsesMod3f = false; + mUsesMod4v = false; + mUsesMod4f = false; + mUsesFaceforward1 = false; + mUsesFaceforward2 = false; + mUsesFaceforward3 = false; + mUsesFaceforward4 = false; + mUsesEqualMat2 = false; + mUsesEqualMat3 = false; + mUsesEqualMat4 = false; + mUsesEqualVec2 = false; + mUsesEqualVec3 = false; + mUsesEqualVec4 = false; + mUsesEqualIVec2 = false; + mUsesEqualIVec3 = false; + mUsesEqualIVec4 = false; + mUsesEqualBVec2 = false; + mUsesEqualBVec3 = false; + mUsesEqualBVec4 = false; + mUsesAtan2_1 = false; + mUsesAtan2_2 = false; + mUsesAtan2_3 = false; + mUsesAtan2_4 = false; + + mScopeDepth = 0; + + mUniqueIndex = 0; + + mContainsLoopDiscontinuity = false; + mOutputLod0Function = false; + mInsideDiscontinuousLoop = false; + + mExcessiveLoopIndex = NULL; +} + +OutputHLSL::~OutputHLSL() +{ + delete mUnfoldShortCircuit; +} + +void OutputHLSL::output() +{ + mContainsLoopDiscontinuity = containsLoopDiscontinuity(mContext.treeRoot); + + mContext.treeRoot->traverse(this); // Output the body first to determine what has to go in the header + header(); + + mContext.infoSink().obj << mHeader.c_str(); + mContext.infoSink().obj << mBody.c_str(); +} + +TInfoSinkBase &OutputHLSL::getBodyStream() +{ + return mBody; +} + +int OutputHLSL::vectorSize(const TType &type) const +{ + int elementSize = type.isMatrix() ? type.getNominalSize() : 1; + int arraySize = type.isArray() ? type.getArraySize() : 1; + + return elementSize * arraySize; +} + +void OutputHLSL::header() +{ + ShShaderType shaderType = mContext.shaderType; + TInfoSinkBase &out = mHeader; + + for (StructDeclarations::iterator structDeclaration = mStructDeclarations.begin(); structDeclaration != mStructDeclarations.end(); structDeclaration++) + { + out << *structDeclaration; + } + + for (Constructors::iterator constructor = mConstructors.begin(); constructor != mConstructors.end(); constructor++) + { + out << *constructor; + } + + if (shaderType == SH_FRAGMENT_SHADER) + { + TString uniforms; + TString varyings; + + TSymbolTableLevel *symbols = mContext.symbolTable.getGlobalLevel(); + int semanticIndex = 0; + + for (TSymbolTableLevel::const_iterator namedSymbol = symbols->begin(); namedSymbol != symbols->end(); namedSymbol++) + { + const TSymbol *symbol = (*namedSymbol).second; + const TString &name = symbol->getName(); + + if (symbol->isVariable()) + { + const TVariable *variable = static_cast<const TVariable*>(symbol); + const TType &type = variable->getType(); + TQualifier qualifier = type.getQualifier(); + + if (qualifier == EvqUniform) + { + if (mReferencedUniforms.find(name.c_str()) != mReferencedUniforms.end()) + { + uniforms += "uniform " + typeString(type) + " " + decorateUniform(name, type) + arrayString(type) + ";\n"; + } + } + else if (qualifier == EvqVaryingIn || qualifier == EvqInvariantVaryingIn) + { + if (mReferencedVaryings.find(name.c_str()) != mReferencedVaryings.end()) + { + // Program linking depends on this exact format + varyings += "static " + typeString(type) + " " + decorate(name) + arrayString(type) + " = " + initializer(type) + ";\n"; + + semanticIndex += type.isArray() ? type.getArraySize() : 1; + } + } + else if (qualifier == EvqGlobal || qualifier == EvqTemporary) + { + // Globals are declared and intialized as an aggregate node + } + else if (qualifier == EvqConst) + { + // Constants are repeated as literals where used + } + else UNREACHABLE(); + } + } + + out << "// Varyings\n"; + out << varyings; + out << "\n" + "static float4 gl_Color[1] = {float4(0, 0, 0, 0)};\n"; + + if (mUsesFragCoord) + { + out << "static float4 gl_FragCoord = float4(0, 0, 0, 0);\n"; + } + + if (mUsesPointCoord) + { + out << "static float2 gl_PointCoord = float2(0.5, 0.5);\n"; + } + + if (mUsesFrontFacing) + { + out << "static bool gl_FrontFacing = false;\n"; + } + + out << "\n"; + + if (mUsesFragCoord) + { + out << "uniform float4 dx_Coord;\n" + "uniform float2 dx_Depth;\n"; + } + + if (mUsesFrontFacing) + { + out << "uniform bool dx_PointsOrLines;\n" + "uniform bool dx_FrontCCW;\n"; + } + + out << "\n"; + out << uniforms; + out << "\n"; + + if (mUsesTexture2D) + { + out << "float4 gl_texture2D(sampler2D s, float2 t)\n" + "{\n" + " return tex2D(s, t);\n" + "}\n" + "\n"; + } + + if (mUsesTexture2D_bias) + { + out << "float4 gl_texture2D(sampler2D s, float2 t, float bias)\n" + "{\n" + " return tex2Dbias(s, float4(t.x, t.y, 0, bias));\n" + "}\n" + "\n"; + } + + if (mUsesTexture2DProj) + { + out << "float4 gl_texture2DProj(sampler2D s, float3 t)\n" + "{\n" + " return tex2Dproj(s, float4(t.x, t.y, 0, t.z));\n" + "}\n" + "\n" + "float4 gl_texture2DProj(sampler2D s, float4 t)\n" + "{\n" + " return tex2Dproj(s, t);\n" + "}\n" + "\n"; + } + + if (mUsesTexture2DProj_bias) + { + out << "float4 gl_texture2DProj(sampler2D s, float3 t, float bias)\n" + "{\n" + " return tex2Dbias(s, float4(t.x / t.z, t.y / t.z, 0, bias));\n" + "}\n" + "\n" + "float4 gl_texture2DProj(sampler2D s, float4 t, float bias)\n" + "{\n" + " return tex2Dbias(s, float4(t.x / t.w, t.y / t.w, 0, bias));\n" + "}\n" + "\n"; + } + + if (mUsesTextureCube) + { + out << "float4 gl_textureCube(samplerCUBE s, float3 t)\n" + "{\n" + " return texCUBE(s, t);\n" + "}\n" + "\n"; + } + + if (mUsesTextureCube_bias) + { + out << "float4 gl_textureCube(samplerCUBE s, float3 t, float bias)\n" + "{\n" + " return texCUBEbias(s, float4(t.x, t.y, t.z, bias));\n" + "}\n" + "\n"; + } + + // These *Lod0 intrinsics are not available in GL fragment shaders. + // They are used to sample using discontinuous texture coordinates. + if (mUsesTexture2DLod0) + { + out << "float4 gl_texture2DLod0(sampler2D s, float2 t)\n" + "{\n" + " return tex2Dlod(s, float4(t.x, t.y, 0, 0));\n" + "}\n" + "\n"; + } + + if (mUsesTexture2DLod0_bias) + { + out << "float4 gl_texture2DLod0(sampler2D s, float2 t, float bias)\n" + "{\n" + " return tex2Dlod(s, float4(t.x, t.y, 0, 0));\n" + "}\n" + "\n"; + } + + if (mUsesTexture2DProjLod0) + { + out << "float4 gl_texture2DProjLod0(sampler2D s, float3 t)\n" + "{\n" + " return tex2Dlod(s, float4(t.x / t.z, t.y / t.z, 0, 0));\n" + "}\n" + "\n" + "float4 gl_texture2DProjLod(sampler2D s, float4 t)\n" + "{\n" + " return tex2Dlod(s, float4(t.x / t.w, t.y / t.w, 0, 0));\n" + "}\n" + "\n"; + } + + if (mUsesTexture2DProjLod0_bias) + { + out << "float4 gl_texture2DProjLod0_bias(sampler2D s, float3 t, float bias)\n" + "{\n" + " return tex2Dlod(s, float4(t.x / t.z, t.y / t.z, 0, 0));\n" + "}\n" + "\n" + "float4 gl_texture2DProjLod_bias(sampler2D s, float4 t, float bias)\n" + "{\n" + " return tex2Dlod(s, float4(t.x / t.w, t.y / t.w, 0, 0));\n" + "}\n" + "\n"; + } + + if (mUsesTextureCubeLod0) + { + out << "float4 gl_textureCubeLod0(samplerCUBE s, float3 t)\n" + "{\n" + " return texCUBElod(s, float4(t.x, t.y, t.z, 0));\n" + "}\n" + "\n"; + } + + if (mUsesTextureCubeLod0_bias) + { + out << "float4 gl_textureCubeLod0(samplerCUBE s, float3 t, float bias)\n" + "{\n" + " return texCUBElod(s, float4(t.x, t.y, t.z, 0));\n" + "}\n" + "\n"; + } + } + else // Vertex shader + { + TString uniforms; + TString attributes; + TString varyings; + + TSymbolTableLevel *symbols = mContext.symbolTable.getGlobalLevel(); + + for (TSymbolTableLevel::const_iterator namedSymbol = symbols->begin(); namedSymbol != symbols->end(); namedSymbol++) + { + const TSymbol *symbol = (*namedSymbol).second; + const TString &name = symbol->getName(); + + if (symbol->isVariable()) + { + const TVariable *variable = static_cast<const TVariable*>(symbol); + const TType &type = variable->getType(); + TQualifier qualifier = type.getQualifier(); + + if (qualifier == EvqUniform) + { + if (mReferencedUniforms.find(name.c_str()) != mReferencedUniforms.end()) + { + uniforms += "uniform " + typeString(type) + " " + decorateUniform(name, type) + arrayString(type) + ";\n"; + } + } + else if (qualifier == EvqAttribute) + { + if (mReferencedAttributes.find(name.c_str()) != mReferencedAttributes.end()) + { + attributes += "static " + typeString(type) + " " + decorate(name) + arrayString(type) + " = " + initializer(type) + ";\n"; + } + } + else if (qualifier == EvqVaryingOut || qualifier == EvqInvariantVaryingOut) + { + if (mReferencedVaryings.find(name.c_str()) != mReferencedVaryings.end()) + { + // Program linking depends on this exact format + varyings += "static " + typeString(type) + " " + decorate(name) + arrayString(type) + " = " + initializer(type) + ";\n"; + } + } + else if (qualifier == EvqGlobal || qualifier == EvqTemporary) + { + // Globals are declared and intialized as an aggregate node + } + else if (qualifier == EvqConst) + { + // Constants are repeated as literals where used + } + else UNREACHABLE(); + } + } + + out << "// Attributes\n"; + out << attributes; + out << "\n" + "static float4 gl_Position = float4(0, 0, 0, 0);\n"; + + if (mUsesPointSize) + { + out << "static float gl_PointSize = float(1);\n"; + } + + out << "\n" + "// Varyings\n"; + out << varyings; + out << "\n" + "uniform float2 dx_HalfPixelSize;\n" + "\n"; + out << uniforms; + out << "\n"; + + if (mUsesTexture2D) + { + out << "float4 gl_texture2D(sampler2D s, float2 t)\n" + "{\n" + " return tex2Dlod(s, float4(t.x, t.y, 0, 0));\n" + "}\n" + "\n"; + } + + if (mUsesTexture2DLod) + { + out << "float4 gl_texture2DLod(sampler2D s, float2 t, float lod)\n" + "{\n" + " return tex2Dlod(s, float4(t.x, t.y, 0, lod));\n" + "}\n" + "\n"; + } + + if (mUsesTexture2DProj) + { + out << "float4 gl_texture2DProj(sampler2D s, float3 t)\n" + "{\n" + " return tex2Dlod(s, float4(t.x / t.z, t.y / t.z, 0, 0));\n" + "}\n" + "\n" + "float4 gl_texture2DProj(sampler2D s, float4 t)\n" + "{\n" + " return tex2Dlod(s, float4(t.x / t.w, t.y / t.w, 0, 0));\n" + "}\n" + "\n"; + } + + if (mUsesTexture2DProjLod) + { + out << "float4 gl_texture2DProjLod(sampler2D s, float3 t, float lod)\n" + "{\n" + " return tex2Dlod(s, float4(t.x / t.z, t.y / t.z, 0, lod));\n" + "}\n" + "\n" + "float4 gl_texture2DProjLod(sampler2D s, float4 t, float lod)\n" + "{\n" + " return tex2Dlod(s, float4(t.x / t.w, t.y / t.w, 0, lod));\n" + "}\n" + "\n"; + } + + if (mUsesTextureCube) + { + out << "float4 gl_textureCube(samplerCUBE s, float3 t)\n" + "{\n" + " return texCUBElod(s, float4(t.x, t.y, t.z, 0));\n" + "}\n" + "\n"; + } + + if (mUsesTextureCubeLod) + { + out << "float4 gl_textureCubeLod(samplerCUBE s, float3 t, float lod)\n" + "{\n" + " return texCUBElod(s, float4(t.x, t.y, t.z, lod));\n" + "}\n" + "\n"; + } + } + + if (mUsesFragCoord) + { + out << "#define GL_USES_FRAG_COORD\n"; + } + + if (mUsesPointCoord) + { + out << "#define GL_USES_POINT_COORD\n"; + } + + if (mUsesFrontFacing) + { + out << "#define GL_USES_FRONT_FACING\n"; + } + + if (mUsesPointSize) + { + out << "#define GL_USES_POINT_SIZE\n"; + } + + if (mUsesDepthRange) + { + out << "struct gl_DepthRangeParameters\n" + "{\n" + " float near;\n" + " float far;\n" + " float diff;\n" + "};\n" + "\n" + "uniform float3 dx_DepthRange;" + "static gl_DepthRangeParameters gl_DepthRange = {dx_DepthRange.x, dx_DepthRange.y, dx_DepthRange.z};\n" + "\n"; + } + + if (mUsesXor) + { + out << "bool xor(bool p, bool q)\n" + "{\n" + " return (p || q) && !(p && q);\n" + "}\n" + "\n"; + } + + if (mUsesMod1) + { + out << "float mod(float x, float y)\n" + "{\n" + " return x - y * floor(x / y);\n" + "}\n" + "\n"; + } + + if (mUsesMod2v) + { + out << "float2 mod(float2 x, float2 y)\n" + "{\n" + " return x - y * floor(x / y);\n" + "}\n" + "\n"; + } + + if (mUsesMod2f) + { + out << "float2 mod(float2 x, float y)\n" + "{\n" + " return x - y * floor(x / y);\n" + "}\n" + "\n"; + } + + if (mUsesMod3v) + { + out << "float3 mod(float3 x, float3 y)\n" + "{\n" + " return x - y * floor(x / y);\n" + "}\n" + "\n"; + } + + if (mUsesMod3f) + { + out << "float3 mod(float3 x, float y)\n" + "{\n" + " return x - y * floor(x / y);\n" + "}\n" + "\n"; + } + + if (mUsesMod4v) + { + out << "float4 mod(float4 x, float4 y)\n" + "{\n" + " return x - y * floor(x / y);\n" + "}\n" + "\n"; + } + + if (mUsesMod4f) + { + out << "float4 mod(float4 x, float y)\n" + "{\n" + " return x - y * floor(x / y);\n" + "}\n" + "\n"; + } + + if (mUsesFaceforward1) + { + out << "float faceforward(float N, float I, float Nref)\n" + "{\n" + " if(dot(Nref, I) >= 0)\n" + " {\n" + " return -N;\n" + " }\n" + " else\n" + " {\n" + " return N;\n" + " }\n" + "}\n" + "\n"; + } + + if (mUsesFaceforward2) + { + out << "float2 faceforward(float2 N, float2 I, float2 Nref)\n" + "{\n" + " if(dot(Nref, I) >= 0)\n" + " {\n" + " return -N;\n" + " }\n" + " else\n" + " {\n" + " return N;\n" + " }\n" + "}\n" + "\n"; + } + + if (mUsesFaceforward3) + { + out << "float3 faceforward(float3 N, float3 I, float3 Nref)\n" + "{\n" + " if(dot(Nref, I) >= 0)\n" + " {\n" + " return -N;\n" + " }\n" + " else\n" + " {\n" + " return N;\n" + " }\n" + "}\n" + "\n"; + } + + if (mUsesFaceforward4) + { + out << "float4 faceforward(float4 N, float4 I, float4 Nref)\n" + "{\n" + " if(dot(Nref, I) >= 0)\n" + " {\n" + " return -N;\n" + " }\n" + " else\n" + " {\n" + " return N;\n" + " }\n" + "}\n" + "\n"; + } + + if (mUsesEqualMat2) + { + out << "bool equal(float2x2 m, float2x2 n)\n" + "{\n" + " return m[0][0] == n[0][0] && m[0][1] == n[0][1] &&\n" + " m[1][0] == n[1][0] && m[1][1] == n[1][1];\n" + "}\n"; + } + + if (mUsesEqualMat3) + { + out << "bool equal(float3x3 m, float3x3 n)\n" + "{\n" + " return m[0][0] == n[0][0] && m[0][1] == n[0][1] && m[0][2] == n[0][2] &&\n" + " m[1][0] == n[1][0] && m[1][1] == n[1][1] && m[1][2] == n[1][2] &&\n" + " m[2][0] == n[2][0] && m[2][1] == n[2][1] && m[2][2] == n[2][2];\n" + "}\n"; + } + + if (mUsesEqualMat4) + { + out << "bool equal(float4x4 m, float4x4 n)\n" + "{\n" + " return m[0][0] == n[0][0] && m[0][1] == n[0][1] && m[0][2] == n[0][2] && m[0][3] == n[0][3] &&\n" + " m[1][0] == n[1][0] && m[1][1] == n[1][1] && m[1][2] == n[1][2] && m[1][3] == n[1][3] &&\n" + " m[2][0] == n[2][0] && m[2][1] == n[2][1] && m[2][2] == n[2][2] && m[2][3] == n[2][3] &&\n" + " m[3][0] == n[3][0] && m[3][1] == n[3][1] && m[3][2] == n[3][2] && m[3][3] == n[3][3];\n" + "}\n"; + } + + if (mUsesEqualVec2) + { + out << "bool equal(float2 v, float2 u)\n" + "{\n" + " return v.x == u.x && v.y == u.y;\n" + "}\n"; + } + + if (mUsesEqualVec3) + { + out << "bool equal(float3 v, float3 u)\n" + "{\n" + " return v.x == u.x && v.y == u.y && v.z == u.z;\n" + "}\n"; + } + + if (mUsesEqualVec4) + { + out << "bool equal(float4 v, float4 u)\n" + "{\n" + " return v.x == u.x && v.y == u.y && v.z == u.z && v.w == u.w;\n" + "}\n"; + } + + if (mUsesEqualIVec2) + { + out << "bool equal(int2 v, int2 u)\n" + "{\n" + " return v.x == u.x && v.y == u.y;\n" + "}\n"; + } + + if (mUsesEqualIVec3) + { + out << "bool equal(int3 v, int3 u)\n" + "{\n" + " return v.x == u.x && v.y == u.y && v.z == u.z;\n" + "}\n"; + } + + if (mUsesEqualIVec4) + { + out << "bool equal(int4 v, int4 u)\n" + "{\n" + " return v.x == u.x && v.y == u.y && v.z == u.z && v.w == u.w;\n" + "}\n"; + } + + if (mUsesEqualBVec2) + { + out << "bool equal(bool2 v, bool2 u)\n" + "{\n" + " return v.x == u.x && v.y == u.y;\n" + "}\n"; + } + + if (mUsesEqualBVec3) + { + out << "bool equal(bool3 v, bool3 u)\n" + "{\n" + " return v.x == u.x && v.y == u.y && v.z == u.z;\n" + "}\n"; + } + + if (mUsesEqualBVec4) + { + out << "bool equal(bool4 v, bool4 u)\n" + "{\n" + " return v.x == u.x && v.y == u.y && v.z == u.z && v.w == u.w;\n" + "}\n"; + } + + if (mUsesAtan2_1) + { + out << "float atanyx(float y, float x)\n" + "{\n" + " if(x == 0 && y == 0) x = 1;\n" // Avoid producing a NaN + " return atan2(y, x);\n" + "}\n"; + } + + if (mUsesAtan2_2) + { + out << "float2 atanyx(float2 y, float2 x)\n" + "{\n" + " if(x[0] == 0 && y[0] == 0) x[0] = 1;\n" + " if(x[1] == 0 && y[1] == 0) x[1] = 1;\n" + " return float2(atan2(y[0], x[0]), atan2(y[1], x[1]));\n" + "}\n"; + } + + if (mUsesAtan2_3) + { + out << "float3 atanyx(float3 y, float3 x)\n" + "{\n" + " if(x[0] == 0 && y[0] == 0) x[0] = 1;\n" + " if(x[1] == 0 && y[1] == 0) x[1] = 1;\n" + " if(x[2] == 0 && y[2] == 0) x[2] = 1;\n" + " return float3(atan2(y[0], x[0]), atan2(y[1], x[1]), atan2(y[2], x[2]));\n" + "}\n"; + } + + if (mUsesAtan2_4) + { + out << "float4 atanyx(float4 y, float4 x)\n" + "{\n" + " if(x[0] == 0 && y[0] == 0) x[0] = 1;\n" + " if(x[1] == 0 && y[1] == 0) x[1] = 1;\n" + " if(x[2] == 0 && y[2] == 0) x[2] = 1;\n" + " if(x[3] == 0 && y[3] == 0) x[3] = 1;\n" + " return float4(atan2(y[0], x[0]), atan2(y[1], x[1]), atan2(y[2], x[2]), atan2(y[3], x[3]));\n" + "}\n"; + } +} + +void OutputHLSL::visitSymbol(TIntermSymbol *node) +{ + TInfoSinkBase &out = mBody; + + TString name = node->getSymbol(); + + if (name == "gl_FragColor") + { + out << "gl_Color[0]"; + } + else if (name == "gl_FragData") + { + out << "gl_Color"; + } + else if (name == "gl_DepthRange") + { + mUsesDepthRange = true; + out << name; + } + else if (name == "gl_FragCoord") + { + mUsesFragCoord = true; + out << name; + } + else if (name == "gl_PointCoord") + { + mUsesPointCoord = true; + out << name; + } + else if (name == "gl_FrontFacing") + { + mUsesFrontFacing = true; + out << name; + } + else if (name == "gl_PointSize") + { + mUsesPointSize = true; + out << name; + } + else + { + TQualifier qualifier = node->getQualifier(); + + if (qualifier == EvqUniform) + { + mReferencedUniforms.insert(name.c_str()); + out << decorateUniform(name, node->getType()); + } + else if (qualifier == EvqAttribute) + { + mReferencedAttributes.insert(name.c_str()); + out << decorate(name); + } + else if (qualifier == EvqVaryingOut || qualifier == EvqInvariantVaryingOut || qualifier == EvqVaryingIn || qualifier == EvqInvariantVaryingIn) + { + mReferencedVaryings.insert(name.c_str()); + out << decorate(name); + } + else + { + out << decorate(name); + } + } +} + +bool OutputHLSL::visitBinary(Visit visit, TIntermBinary *node) +{ + TInfoSinkBase &out = mBody; + + switch (node->getOp()) + { + case EOpAssign: outputTriplet(visit, "(", " = ", ")"); break; + case EOpInitialize: + if (visit == PreVisit) + { + // GLSL allows to write things like "float x = x;" where a new variable x is defined + // and the value of an existing variable x is assigned. HLSL uses C semantics (the + // new variable is created before the assignment is evaluated), so we need to convert + // this to "float t = x, x = t;". + + TIntermSymbol *symbolNode = node->getLeft()->getAsSymbolNode(); + TIntermTyped *expression = node->getRight(); + + sh::SearchSymbol searchSymbol(symbolNode->getSymbol()); + expression->traverse(&searchSymbol); + bool sameSymbol = searchSymbol.foundMatch(); + + if (sameSymbol) + { + // Type already printed + out << "t" + str(mUniqueIndex) + " = "; + expression->traverse(this); + out << ", "; + symbolNode->traverse(this); + out << " = t" + str(mUniqueIndex); + + mUniqueIndex++; + return false; + } + } + else if (visit == InVisit) + { + out << " = "; + } + break; + case EOpAddAssign: outputTriplet(visit, "(", " += ", ")"); break; + case EOpSubAssign: outputTriplet(visit, "(", " -= ", ")"); break; + case EOpMulAssign: outputTriplet(visit, "(", " *= ", ")"); break; + case EOpVectorTimesScalarAssign: outputTriplet(visit, "(", " *= ", ")"); break; + case EOpMatrixTimesScalarAssign: outputTriplet(visit, "(", " *= ", ")"); break; + case EOpVectorTimesMatrixAssign: + if (visit == PreVisit) + { + out << "("; + } + else if (visit == InVisit) + { + out << " = mul("; + node->getLeft()->traverse(this); + out << ", transpose("; + } + else + { + out << ")))"; + } + break; + case EOpMatrixTimesMatrixAssign: + if (visit == PreVisit) + { + out << "("; + } + else if (visit == InVisit) + { + out << " = mul("; + node->getLeft()->traverse(this); + out << ", "; + } + else + { + out << "))"; + } + break; + case EOpDivAssign: outputTriplet(visit, "(", " /= ", ")"); break; + case EOpIndexDirect: outputTriplet(visit, "", "[", "]"); break; + case EOpIndexIndirect: outputTriplet(visit, "", "[", "]"); break; + case EOpIndexDirectStruct: + if (visit == InVisit) + { + out << "." + decorateField(node->getType().getFieldName(), node->getLeft()->getType()); + + return false; + } + break; + case EOpVectorSwizzle: + if (visit == InVisit) + { + out << "."; + + TIntermAggregate *swizzle = node->getRight()->getAsAggregate(); + + if (swizzle) + { + TIntermSequence &sequence = swizzle->getSequence(); + + for (TIntermSequence::iterator sit = sequence.begin(); sit != sequence.end(); sit++) + { + TIntermConstantUnion *element = (*sit)->getAsConstantUnion(); + + if (element) + { + int i = element->getUnionArrayPointer()[0].getIConst(); + + switch (i) + { + case 0: out << "x"; break; + case 1: out << "y"; break; + case 2: out << "z"; break; + case 3: out << "w"; break; + default: UNREACHABLE(); + } + } + else UNREACHABLE(); + } + } + else UNREACHABLE(); + + return false; // Fully processed + } + break; + case EOpAdd: outputTriplet(visit, "(", " + ", ")"); break; + case EOpSub: outputTriplet(visit, "(", " - ", ")"); break; + case EOpMul: outputTriplet(visit, "(", " * ", ")"); break; + case EOpDiv: outputTriplet(visit, "(", " / ", ")"); break; + case EOpEqual: + case EOpNotEqual: + if (node->getLeft()->isScalar()) + { + if (node->getOp() == EOpEqual) + { + outputTriplet(visit, "(", " == ", ")"); + } + else + { + outputTriplet(visit, "(", " != ", ")"); + } + } + else if (node->getLeft()->getBasicType() == EbtStruct) + { + if (node->getOp() == EOpEqual) + { + out << "("; + } + else + { + out << "!("; + } + + const TTypeList *fields = node->getLeft()->getType().getStruct(); + + for (size_t i = 0; i < fields->size(); i++) + { + const TType *fieldType = (*fields)[i].type; + + node->getLeft()->traverse(this); + out << "." + decorateField(fieldType->getFieldName(), node->getLeft()->getType()) + " == "; + node->getRight()->traverse(this); + out << "." + decorateField(fieldType->getFieldName(), node->getLeft()->getType()); + + if (i < fields->size() - 1) + { + out << " && "; + } + } + + out << ")"; + + return false; + } + else + { + if (node->getLeft()->isMatrix()) + { + switch (node->getLeft()->getNominalSize()) + { + case 2: mUsesEqualMat2 = true; break; + case 3: mUsesEqualMat3 = true; break; + case 4: mUsesEqualMat4 = true; break; + default: UNREACHABLE(); + } + } + else if (node->getLeft()->isVector()) + { + switch (node->getLeft()->getBasicType()) + { + case EbtFloat: + switch (node->getLeft()->getNominalSize()) + { + case 2: mUsesEqualVec2 = true; break; + case 3: mUsesEqualVec3 = true; break; + case 4: mUsesEqualVec4 = true; break; + default: UNREACHABLE(); + } + break; + case EbtInt: + switch (node->getLeft()->getNominalSize()) + { + case 2: mUsesEqualIVec2 = true; break; + case 3: mUsesEqualIVec3 = true; break; + case 4: mUsesEqualIVec4 = true; break; + default: UNREACHABLE(); + } + break; + case EbtBool: + switch (node->getLeft()->getNominalSize()) + { + case 2: mUsesEqualBVec2 = true; break; + case 3: mUsesEqualBVec3 = true; break; + case 4: mUsesEqualBVec4 = true; break; + default: UNREACHABLE(); + } + break; + default: UNREACHABLE(); + } + } + else UNREACHABLE(); + + if (node->getOp() == EOpEqual) + { + outputTriplet(visit, "equal(", ", ", ")"); + } + else + { + outputTriplet(visit, "!equal(", ", ", ")"); + } + } + break; + case EOpLessThan: outputTriplet(visit, "(", " < ", ")"); break; + case EOpGreaterThan: outputTriplet(visit, "(", " > ", ")"); break; + case EOpLessThanEqual: outputTriplet(visit, "(", " <= ", ")"); break; + case EOpGreaterThanEqual: outputTriplet(visit, "(", " >= ", ")"); break; + case EOpVectorTimesScalar: outputTriplet(visit, "(", " * ", ")"); break; + case EOpMatrixTimesScalar: outputTriplet(visit, "(", " * ", ")"); break; + case EOpVectorTimesMatrix: outputTriplet(visit, "mul(", ", transpose(", "))"); break; + case EOpMatrixTimesVector: outputTriplet(visit, "mul(transpose(", "), ", ")"); break; + case EOpMatrixTimesMatrix: outputTriplet(visit, "transpose(mul(transpose(", "), transpose(", ")))"); break; + case EOpLogicalOr: + out << "s" << mUnfoldShortCircuit->getNextTemporaryIndex(); + return false; + case EOpLogicalXor: + mUsesXor = true; + outputTriplet(visit, "xor(", ", ", ")"); + break; + case EOpLogicalAnd: + out << "s" << mUnfoldShortCircuit->getNextTemporaryIndex(); + return false; + default: UNREACHABLE(); + } + + return true; +} + +bool OutputHLSL::visitUnary(Visit visit, TIntermUnary *node) +{ + switch (node->getOp()) + { + case EOpNegative: outputTriplet(visit, "(-", "", ")"); break; + case EOpVectorLogicalNot: outputTriplet(visit, "(!", "", ")"); break; + case EOpLogicalNot: outputTriplet(visit, "(!", "", ")"); break; + case EOpPostIncrement: outputTriplet(visit, "(", "", "++)"); break; + case EOpPostDecrement: outputTriplet(visit, "(", "", "--)"); break; + case EOpPreIncrement: outputTriplet(visit, "(++", "", ")"); break; + case EOpPreDecrement: outputTriplet(visit, "(--", "", ")"); break; + case EOpConvIntToBool: + case EOpConvFloatToBool: + switch (node->getOperand()->getType().getNominalSize()) + { + case 1: outputTriplet(visit, "bool(", "", ")"); break; + case 2: outputTriplet(visit, "bool2(", "", ")"); break; + case 3: outputTriplet(visit, "bool3(", "", ")"); break; + case 4: outputTriplet(visit, "bool4(", "", ")"); break; + default: UNREACHABLE(); + } + break; + case EOpConvBoolToFloat: + case EOpConvIntToFloat: + switch (node->getOperand()->getType().getNominalSize()) + { + case 1: outputTriplet(visit, "float(", "", ")"); break; + case 2: outputTriplet(visit, "float2(", "", ")"); break; + case 3: outputTriplet(visit, "float3(", "", ")"); break; + case 4: outputTriplet(visit, "float4(", "", ")"); break; + default: UNREACHABLE(); + } + break; + case EOpConvFloatToInt: + case EOpConvBoolToInt: + switch (node->getOperand()->getType().getNominalSize()) + { + case 1: outputTriplet(visit, "int(", "", ")"); break; + case 2: outputTriplet(visit, "int2(", "", ")"); break; + case 3: outputTriplet(visit, "int3(", "", ")"); break; + case 4: outputTriplet(visit, "int4(", "", ")"); break; + default: UNREACHABLE(); + } + break; + case EOpRadians: outputTriplet(visit, "radians(", "", ")"); break; + case EOpDegrees: outputTriplet(visit, "degrees(", "", ")"); break; + case EOpSin: outputTriplet(visit, "sin(", "", ")"); break; + case EOpCos: outputTriplet(visit, "cos(", "", ")"); break; + case EOpTan: outputTriplet(visit, "tan(", "", ")"); break; + case EOpAsin: outputTriplet(visit, "asin(", "", ")"); break; + case EOpAcos: outputTriplet(visit, "acos(", "", ")"); break; + case EOpAtan: outputTriplet(visit, "atan(", "", ")"); break; + case EOpExp: outputTriplet(visit, "exp(", "", ")"); break; + case EOpLog: outputTriplet(visit, "log(", "", ")"); break; + case EOpExp2: outputTriplet(visit, "exp2(", "", ")"); break; + case EOpLog2: outputTriplet(visit, "log2(", "", ")"); break; + case EOpSqrt: outputTriplet(visit, "sqrt(", "", ")"); break; + case EOpInverseSqrt: outputTriplet(visit, "rsqrt(", "", ")"); break; + case EOpAbs: outputTriplet(visit, "abs(", "", ")"); break; + case EOpSign: outputTriplet(visit, "sign(", "", ")"); break; + case EOpFloor: outputTriplet(visit, "floor(", "", ")"); break; + case EOpCeil: outputTriplet(visit, "ceil(", "", ")"); break; + case EOpFract: outputTriplet(visit, "frac(", "", ")"); break; + case EOpLength: outputTriplet(visit, "length(", "", ")"); break; + case EOpNormalize: outputTriplet(visit, "normalize(", "", ")"); break; + case EOpDFdx: + if(mInsideDiscontinuousLoop || mOutputLod0Function) + { + outputTriplet(visit, "(", "", ", 0.0)"); + } + else + { + outputTriplet(visit, "ddx(", "", ")"); + } + break; + case EOpDFdy: + if(mInsideDiscontinuousLoop || mOutputLod0Function) + { + outputTriplet(visit, "(", "", ", 0.0)"); + } + else + { + outputTriplet(visit, "ddy(", "", ")"); + } + break; + case EOpFwidth: + if(mInsideDiscontinuousLoop || mOutputLod0Function) + { + outputTriplet(visit, "(", "", ", 0.0)"); + } + else + { + outputTriplet(visit, "fwidth(", "", ")"); + } + break; + case EOpAny: outputTriplet(visit, "any(", "", ")"); break; + case EOpAll: outputTriplet(visit, "all(", "", ")"); break; + default: UNREACHABLE(); + } + + return true; +} + +bool OutputHLSL::visitAggregate(Visit visit, TIntermAggregate *node) +{ + TInfoSinkBase &out = mBody; + + switch (node->getOp()) + { + case EOpSequence: + { + if (mInsideFunction) + { + outputLineDirective(node->getLine()); + out << "{\n"; + + mScopeDepth++; + + if (mScopeBracket.size() < mScopeDepth) + { + mScopeBracket.push_back(0); // New scope level + } + else + { + mScopeBracket[mScopeDepth - 1]++; // New scope at existing level + } + } + + for (TIntermSequence::iterator sit = node->getSequence().begin(); sit != node->getSequence().end(); sit++) + { + outputLineDirective((*sit)->getLine()); + + traverseStatements(*sit); + + out << ";\n"; + } + + if (mInsideFunction) + { + outputLineDirective(node->getEndLine()); + out << "}\n"; + + mScopeDepth--; + } + + return false; + } + case EOpDeclaration: + if (visit == PreVisit) + { + TIntermSequence &sequence = node->getSequence(); + TIntermTyped *variable = sequence[0]->getAsTyped(); + bool visit = true; + + if (variable && (variable->getQualifier() == EvqTemporary || variable->getQualifier() == EvqGlobal)) + { + if (variable->getType().getStruct()) + { + addConstructor(variable->getType(), scopedStruct(variable->getType().getTypeName()), NULL); + } + + if (!variable->getAsSymbolNode() || variable->getAsSymbolNode()->getSymbol() != "") // Variable declaration + { + if (!mInsideFunction) + { + out << "static "; + } + + out << typeString(variable->getType()) + " "; + + for (TIntermSequence::iterator sit = sequence.begin(); sit != sequence.end(); sit++) + { + TIntermSymbol *symbol = (*sit)->getAsSymbolNode(); + + if (symbol) + { + symbol->traverse(this); + out << arrayString(symbol->getType()); + out << " = " + initializer(variable->getType()); + } + else + { + (*sit)->traverse(this); + } + + if (visit && this->inVisit) + { + if (*sit != sequence.back()) + { + visit = this->visitAggregate(InVisit, node); + } + } + } + + if (visit && this->postVisit) + { + this->visitAggregate(PostVisit, node); + } + } + else if (variable->getAsSymbolNode() && variable->getAsSymbolNode()->getSymbol() == "") // Type (struct) declaration + { + // Already added to constructor map + } + else UNREACHABLE(); + } + + return false; + } + else if (visit == InVisit) + { + out << ", "; + } + break; + case EOpPrototype: + if (visit == PreVisit) + { + out << typeString(node->getType()) << " " << decorate(node->getName()) << (mOutputLod0Function ? "Lod0(" : "("); + + TIntermSequence &arguments = node->getSequence(); + + for (unsigned int i = 0; i < arguments.size(); i++) + { + TIntermSymbol *symbol = arguments[i]->getAsSymbolNode(); + + if (symbol) + { + out << argumentString(symbol); + + if (i < arguments.size() - 1) + { + out << ", "; + } + } + else UNREACHABLE(); + } + + out << ");\n"; + + // Also prototype the Lod0 variant if needed + if (mContainsLoopDiscontinuity && !mOutputLod0Function) + { + mOutputLod0Function = true; + node->traverse(this); + mOutputLod0Function = false; + } + + return false; + } + break; + case EOpComma: outputTriplet(visit, "(", ", ", ")"); break; + case EOpFunction: + { + TString name = TFunction::unmangleName(node->getName()); + + out << typeString(node->getType()) << " "; + + if (name == "main") + { + out << "gl_main("; + } + else + { + out << decorate(name) << (mOutputLod0Function ? "Lod0(" : "("); + } + + TIntermSequence &sequence = node->getSequence(); + TIntermSequence &arguments = sequence[0]->getAsAggregate()->getSequence(); + + for (unsigned int i = 0; i < arguments.size(); i++) + { + TIntermSymbol *symbol = arguments[i]->getAsSymbolNode(); + + if (symbol) + { + if (symbol->getType().getStruct()) + { + addConstructor(symbol->getType(), scopedStruct(symbol->getType().getTypeName()), NULL); + } + + out << argumentString(symbol); + + if (i < arguments.size() - 1) + { + out << ", "; + } + } + else UNREACHABLE(); + } + + out << ")\n" + "{\n"; + + if (sequence.size() > 1) + { + mInsideFunction = true; + sequence[1]->traverse(this); + mInsideFunction = false; + } + + out << "}\n"; + + if (mContainsLoopDiscontinuity && !mOutputLod0Function) + { + if (name != "main") + { + mOutputLod0Function = true; + node->traverse(this); + mOutputLod0Function = false; + } + } + + return false; + } + break; + case EOpFunctionCall: + { + if (visit == PreVisit) + { + TString name = TFunction::unmangleName(node->getName()); + bool lod0 = mInsideDiscontinuousLoop || mOutputLod0Function; + + if (node->isUserDefined()) + { + out << decorate(name) << (lod0 ? "Lod0(" : "("); + } + else + { + if (name == "texture2D") + { + if (!lod0) + { + if (node->getSequence().size() == 2) + { + mUsesTexture2D = true; + } + else if (node->getSequence().size() == 3) + { + mUsesTexture2D_bias = true; + } + else UNREACHABLE(); + + out << "gl_texture2D("; + } + else + { + if (node->getSequence().size() == 2) + { + mUsesTexture2DLod0 = true; + } + else if (node->getSequence().size() == 3) + { + mUsesTexture2DLod0_bias = true; + } + else UNREACHABLE(); + + out << "gl_texture2DLod0("; + } + } + else if (name == "texture2DProj") + { + if (!lod0) + { + if (node->getSequence().size() == 2) + { + mUsesTexture2DProj = true; + } + else if (node->getSequence().size() == 3) + { + mUsesTexture2DProj_bias = true; + } + else UNREACHABLE(); + + out << "gl_texture2DProj("; + } + else + { + if (node->getSequence().size() == 2) + { + mUsesTexture2DProjLod0 = true; + } + else if (node->getSequence().size() == 3) + { + mUsesTexture2DProjLod0_bias = true; + } + else UNREACHABLE(); + + out << "gl_texture2DProjLod0("; + } + } + else if (name == "textureCube") + { + if (!lod0) + { + if (node->getSequence().size() == 2) + { + mUsesTextureCube = true; + } + else if (node->getSequence().size() == 3) + { + mUsesTextureCube_bias = true; + } + else UNREACHABLE(); + + out << "gl_textureCube("; + } + else + { + if (node->getSequence().size() == 2) + { + mUsesTextureCubeLod0 = true; + } + else if (node->getSequence().size() == 3) + { + mUsesTextureCubeLod0_bias = true; + } + else UNREACHABLE(); + + out << "gl_textureCubeLod0("; + } + } + else if (name == "texture2DLod") + { + if (node->getSequence().size() == 3) + { + mUsesTexture2DLod = true; + } + else UNREACHABLE(); + + out << "gl_texture2DLod("; + } + else if (name == "texture2DProjLod") + { + if (node->getSequence().size() == 3) + { + mUsesTexture2DProjLod = true; + } + else UNREACHABLE(); + + out << "gl_texture2DProjLod("; + } + else if (name == "textureCubeLod") + { + if (node->getSequence().size() == 3) + { + mUsesTextureCubeLod = true; + } + else UNREACHABLE(); + + out << "gl_textureCubeLod("; + } + else UNREACHABLE(); + } + } + else if (visit == InVisit) + { + out << ", "; + } + else + { + out << ")"; + } + } + break; + case EOpParameters: outputTriplet(visit, "(", ", ", ")\n{\n"); break; + case EOpConstructFloat: + addConstructor(node->getType(), "vec1", &node->getSequence()); + outputTriplet(visit, "vec1(", "", ")"); + break; + case EOpConstructVec2: + addConstructor(node->getType(), "vec2", &node->getSequence()); + outputTriplet(visit, "vec2(", ", ", ")"); + break; + case EOpConstructVec3: + addConstructor(node->getType(), "vec3", &node->getSequence()); + outputTriplet(visit, "vec3(", ", ", ")"); + break; + case EOpConstructVec4: + addConstructor(node->getType(), "vec4", &node->getSequence()); + outputTriplet(visit, "vec4(", ", ", ")"); + break; + case EOpConstructBool: + addConstructor(node->getType(), "bvec1", &node->getSequence()); + outputTriplet(visit, "bvec1(", "", ")"); + break; + case EOpConstructBVec2: + addConstructor(node->getType(), "bvec2", &node->getSequence()); + outputTriplet(visit, "bvec2(", ", ", ")"); + break; + case EOpConstructBVec3: + addConstructor(node->getType(), "bvec3", &node->getSequence()); + outputTriplet(visit, "bvec3(", ", ", ")"); + break; + case EOpConstructBVec4: + addConstructor(node->getType(), "bvec4", &node->getSequence()); + outputTriplet(visit, "bvec4(", ", ", ")"); + break; + case EOpConstructInt: + addConstructor(node->getType(), "ivec1", &node->getSequence()); + outputTriplet(visit, "ivec1(", "", ")"); + break; + case EOpConstructIVec2: + addConstructor(node->getType(), "ivec2", &node->getSequence()); + outputTriplet(visit, "ivec2(", ", ", ")"); + break; + case EOpConstructIVec3: + addConstructor(node->getType(), "ivec3", &node->getSequence()); + outputTriplet(visit, "ivec3(", ", ", ")"); + break; + case EOpConstructIVec4: + addConstructor(node->getType(), "ivec4", &node->getSequence()); + outputTriplet(visit, "ivec4(", ", ", ")"); + break; + case EOpConstructMat2: + addConstructor(node->getType(), "mat2", &node->getSequence()); + outputTriplet(visit, "mat2(", ", ", ")"); + break; + case EOpConstructMat3: + addConstructor(node->getType(), "mat3", &node->getSequence()); + outputTriplet(visit, "mat3(", ", ", ")"); + break; + case EOpConstructMat4: + addConstructor(node->getType(), "mat4", &node->getSequence()); + outputTriplet(visit, "mat4(", ", ", ")"); + break; + case EOpConstructStruct: + addConstructor(node->getType(), scopedStruct(node->getType().getTypeName()), &node->getSequence()); + outputTriplet(visit, structLookup(node->getType().getTypeName()) + "_ctor(", ", ", ")"); + break; + case EOpLessThan: outputTriplet(visit, "(", " < ", ")"); break; + case EOpGreaterThan: outputTriplet(visit, "(", " > ", ")"); break; + case EOpLessThanEqual: outputTriplet(visit, "(", " <= ", ")"); break; + case EOpGreaterThanEqual: outputTriplet(visit, "(", " >= ", ")"); break; + case EOpVectorEqual: outputTriplet(visit, "(", " == ", ")"); break; + case EOpVectorNotEqual: outputTriplet(visit, "(", " != ", ")"); break; + case EOpMod: + { + // We need to look at the number of components in both arguments + switch (node->getSequence()[0]->getAsTyped()->getNominalSize() * 10 + + node->getSequence()[1]->getAsTyped()->getNominalSize()) + { + case 11: mUsesMod1 = true; break; + case 22: mUsesMod2v = true; break; + case 21: mUsesMod2f = true; break; + case 33: mUsesMod3v = true; break; + case 31: mUsesMod3f = true; break; + case 44: mUsesMod4v = true; break; + case 41: mUsesMod4f = true; break; + default: UNREACHABLE(); + } + + outputTriplet(visit, "mod(", ", ", ")"); + } + break; + case EOpPow: outputTriplet(visit, "pow(", ", ", ")"); break; + case EOpAtan: + ASSERT(node->getSequence().size() == 2); // atan(x) is a unary operator + switch (node->getSequence()[0]->getAsTyped()->getNominalSize()) + { + case 1: mUsesAtan2_1 = true; break; + case 2: mUsesAtan2_2 = true; break; + case 3: mUsesAtan2_3 = true; break; + case 4: mUsesAtan2_4 = true; break; + default: UNREACHABLE(); + } + outputTriplet(visit, "atanyx(", ", ", ")"); + break; + case EOpMin: outputTriplet(visit, "min(", ", ", ")"); break; + case EOpMax: outputTriplet(visit, "max(", ", ", ")"); break; + case EOpClamp: outputTriplet(visit, "clamp(", ", ", ")"); break; + case EOpMix: outputTriplet(visit, "lerp(", ", ", ")"); break; + case EOpStep: outputTriplet(visit, "step(", ", ", ")"); break; + case EOpSmoothStep: outputTriplet(visit, "smoothstep(", ", ", ")"); break; + case EOpDistance: outputTriplet(visit, "distance(", ", ", ")"); break; + case EOpDot: outputTriplet(visit, "dot(", ", ", ")"); break; + case EOpCross: outputTriplet(visit, "cross(", ", ", ")"); break; + case EOpFaceForward: + { + switch (node->getSequence()[0]->getAsTyped()->getNominalSize()) // Number of components in the first argument + { + case 1: mUsesFaceforward1 = true; break; + case 2: mUsesFaceforward2 = true; break; + case 3: mUsesFaceforward3 = true; break; + case 4: mUsesFaceforward4 = true; break; + default: UNREACHABLE(); + } + + outputTriplet(visit, "faceforward(", ", ", ")"); + } + break; + case EOpReflect: outputTriplet(visit, "reflect(", ", ", ")"); break; + case EOpRefract: outputTriplet(visit, "refract(", ", ", ")"); break; + case EOpMul: outputTriplet(visit, "(", " * ", ")"); break; + default: UNREACHABLE(); + } + + return true; +} + +bool OutputHLSL::visitSelection(Visit visit, TIntermSelection *node) +{ + TInfoSinkBase &out = mBody; + + if (node->usesTernaryOperator()) + { + out << "s" << mUnfoldShortCircuit->getNextTemporaryIndex(); + } + else // if/else statement + { + mUnfoldShortCircuit->traverse(node->getCondition()); + + out << "if("; + + node->getCondition()->traverse(this); + + out << ")\n"; + + outputLineDirective(node->getLine()); + out << "{\n"; + + if (node->getTrueBlock()) + { + traverseStatements(node->getTrueBlock()); + } + + outputLineDirective(node->getLine()); + out << ";\n}\n"; + + if (node->getFalseBlock()) + { + out << "else\n"; + + outputLineDirective(node->getFalseBlock()->getLine()); + out << "{\n"; + + outputLineDirective(node->getFalseBlock()->getLine()); + traverseStatements(node->getFalseBlock()); + + outputLineDirective(node->getFalseBlock()->getLine()); + out << ";\n}\n"; + } + } + + return false; +} + +void OutputHLSL::visitConstantUnion(TIntermConstantUnion *node) +{ + writeConstantUnion(node->getType(), node->getUnionArrayPointer()); +} + +bool OutputHLSL::visitLoop(Visit visit, TIntermLoop *node) +{ + bool wasDiscontinuous = mInsideDiscontinuousLoop; + + if (!mInsideDiscontinuousLoop) + { + mInsideDiscontinuousLoop = containsLoopDiscontinuity(node); + } + + if (handleExcessiveLoop(node)) + { + return false; + } + + TInfoSinkBase &out = mBody; + + if (node->getType() == ELoopDoWhile) + { + out << "{do\n"; + + outputLineDirective(node->getLine()); + out << "{\n"; + } + else + { + out << "{for("; + + if (node->getInit()) + { + node->getInit()->traverse(this); + } + + out << "; "; + + if (node->getCondition()) + { + node->getCondition()->traverse(this); + } + + out << "; "; + + if (node->getExpression()) + { + node->getExpression()->traverse(this); + } + + out << ")\n"; + + outputLineDirective(node->getLine()); + out << "{\n"; + } + + if (node->getBody()) + { + traverseStatements(node->getBody()); + } + + outputLineDirective(node->getLine()); + out << ";}\n"; + + if (node->getType() == ELoopDoWhile) + { + outputLineDirective(node->getCondition()->getLine()); + out << "while(\n"; + + node->getCondition()->traverse(this); + + out << ");"; + } + + out << "}\n"; + + mInsideDiscontinuousLoop = wasDiscontinuous; + + return false; +} + +bool OutputHLSL::visitBranch(Visit visit, TIntermBranch *node) +{ + TInfoSinkBase &out = mBody; + + switch (node->getFlowOp()) + { + case EOpKill: outputTriplet(visit, "discard;\n", "", ""); break; + case EOpBreak: + if (visit == PreVisit) + { + if (mExcessiveLoopIndex) + { + out << "{Break"; + mExcessiveLoopIndex->traverse(this); + out << " = true; break;}\n"; + } + else + { + out << "break;\n"; + } + } + break; + case EOpContinue: outputTriplet(visit, "continue;\n", "", ""); break; + case EOpReturn: + if (visit == PreVisit) + { + if (node->getExpression()) + { + out << "return "; + } + else + { + out << "return;\n"; + } + } + else if (visit == PostVisit) + { + if (node->getExpression()) + { + out << ";\n"; + } + } + break; + default: UNREACHABLE(); + } + + return true; +} + +void OutputHLSL::traverseStatements(TIntermNode *node) +{ + if (isSingleStatement(node)) + { + mUnfoldShortCircuit->traverse(node); + } + + node->traverse(this); +} + +bool OutputHLSL::isSingleStatement(TIntermNode *node) +{ + TIntermAggregate *aggregate = node->getAsAggregate(); + + if (aggregate) + { + if (aggregate->getOp() == EOpSequence) + { + return false; + } + else + { + for (TIntermSequence::iterator sit = aggregate->getSequence().begin(); sit != aggregate->getSequence().end(); sit++) + { + if (!isSingleStatement(*sit)) + { + return false; + } + } + + return true; + } + } + + return true; +} + +// Handle loops with more than 254 iterations (unsupported by D3D9) by splitting them +// (The D3D documentation says 255 iterations, but the compiler complains at anything more than 254). +bool OutputHLSL::handleExcessiveLoop(TIntermLoop *node) +{ + const int MAX_LOOP_ITERATIONS = 254; + TInfoSinkBase &out = mBody; + + // Parse loops of the form: + // for(int index = initial; index [comparator] limit; index += increment) + TIntermSymbol *index = NULL; + TOperator comparator = EOpNull; + int initial = 0; + int limit = 0; + int increment = 0; + + // Parse index name and intial value + if (node->getInit()) + { + TIntermAggregate *init = node->getInit()->getAsAggregate(); + + if (init) + { + TIntermSequence &sequence = init->getSequence(); + TIntermTyped *variable = sequence[0]->getAsTyped(); + + if (variable && variable->getQualifier() == EvqTemporary) + { + TIntermBinary *assign = variable->getAsBinaryNode(); + + if (assign->getOp() == EOpInitialize) + { + TIntermSymbol *symbol = assign->getLeft()->getAsSymbolNode(); + TIntermConstantUnion *constant = assign->getRight()->getAsConstantUnion(); + + if (symbol && constant) + { + if (constant->getBasicType() == EbtInt && constant->getNominalSize() == 1) + { + index = symbol; + initial = constant->getUnionArrayPointer()[0].getIConst(); + } + } + } + } + } + } + + // Parse comparator and limit value + if (index != NULL && node->getCondition()) + { + TIntermBinary *test = node->getCondition()->getAsBinaryNode(); + + if (test && test->getLeft()->getAsSymbolNode()->getId() == index->getId()) + { + TIntermConstantUnion *constant = test->getRight()->getAsConstantUnion(); + + if (constant) + { + if (constant->getBasicType() == EbtInt && constant->getNominalSize() == 1) + { + comparator = test->getOp(); + limit = constant->getUnionArrayPointer()[0].getIConst(); + } + } + } + } + + // Parse increment + if (index != NULL && comparator != EOpNull && node->getExpression()) + { + TIntermBinary *binaryTerminal = node->getExpression()->getAsBinaryNode(); + TIntermUnary *unaryTerminal = node->getExpression()->getAsUnaryNode(); + + if (binaryTerminal) + { + TOperator op = binaryTerminal->getOp(); + TIntermConstantUnion *constant = binaryTerminal->getRight()->getAsConstantUnion(); + + if (constant) + { + if (constant->getBasicType() == EbtInt && constant->getNominalSize() == 1) + { + int value = constant->getUnionArrayPointer()[0].getIConst(); + + switch (op) + { + case EOpAddAssign: increment = value; break; + case EOpSubAssign: increment = -value; break; + default: UNIMPLEMENTED(); + } + } + } + } + else if (unaryTerminal) + { + TOperator op = unaryTerminal->getOp(); + + switch (op) + { + case EOpPostIncrement: increment = 1; break; + case EOpPostDecrement: increment = -1; break; + case EOpPreIncrement: increment = 1; break; + case EOpPreDecrement: increment = -1; break; + default: UNIMPLEMENTED(); + } + } + } + + if (index != NULL && comparator != EOpNull && increment != 0) + { + if (comparator == EOpLessThanEqual) + { + comparator = EOpLessThan; + limit += 1; + } + + if (comparator == EOpLessThan) + { + int iterations = (limit - initial) / increment; + + if (iterations <= MAX_LOOP_ITERATIONS) + { + return false; // Not an excessive loop + } + + TIntermSymbol *restoreIndex = mExcessiveLoopIndex; + mExcessiveLoopIndex = index; + + out << "{int "; + index->traverse(this); + out << ";\n" + "bool Break"; + index->traverse(this); + out << " = false;\n"; + + bool firstLoopFragment = true; + + while (iterations > 0) + { + int clampedLimit = initial + increment * std::min(MAX_LOOP_ITERATIONS, iterations); + + if (!firstLoopFragment) + { + out << "if(!Break"; + index->traverse(this); + out << ") {\n"; + } + + if (iterations <= MAX_LOOP_ITERATIONS) // Last loop fragment + { + mExcessiveLoopIndex = NULL; // Stops setting the Break flag + } + + // for(int index = initial; index < clampedLimit; index += increment) + + out << "for("; + index->traverse(this); + out << " = "; + out << initial; + + out << "; "; + index->traverse(this); + out << " < "; + out << clampedLimit; + + out << "; "; + index->traverse(this); + out << " += "; + out << increment; + out << ")\n"; + + outputLineDirective(node->getLine()); + out << "{\n"; + + if (node->getBody()) + { + node->getBody()->traverse(this); + } + + outputLineDirective(node->getLine()); + out << ";}\n"; + + if (!firstLoopFragment) + { + out << "}\n"; + } + + firstLoopFragment = false; + + initial += MAX_LOOP_ITERATIONS * increment; + iterations -= MAX_LOOP_ITERATIONS; + } + + out << "}"; + + mExcessiveLoopIndex = restoreIndex; + + return true; + } + else UNIMPLEMENTED(); + } + + return false; // Not handled as an excessive loop +} + +void OutputHLSL::outputTriplet(Visit visit, const TString &preString, const TString &inString, const TString &postString) +{ + TInfoSinkBase &out = mBody; + + if (visit == PreVisit) + { + out << preString; + } + else if (visit == InVisit) + { + out << inString; + } + else if (visit == PostVisit) + { + out << postString; + } +} + +void OutputHLSL::outputLineDirective(int line) +{ + if ((mContext.compileOptions & SH_LINE_DIRECTIVES) && (line > 0)) + { + mBody << "\n"; + mBody << "#line " << line; + + if (mContext.sourcePath) + { + mBody << " \"" << mContext.sourcePath << "\""; + } + + mBody << "\n"; + } +} + +TString OutputHLSL::argumentString(const TIntermSymbol *symbol) +{ + TQualifier qualifier = symbol->getQualifier(); + const TType &type = symbol->getType(); + TString name = symbol->getSymbol(); + + if (name.empty()) // HLSL demands named arguments, also for prototypes + { + name = "x" + str(mUniqueIndex++); + } + else + { + name = decorate(name); + } + + return qualifierString(qualifier) + " " + typeString(type) + " " + name + arrayString(type); +} + +TString OutputHLSL::qualifierString(TQualifier qualifier) +{ + switch(qualifier) + { + case EvqIn: return "in"; + case EvqOut: return "out"; + case EvqInOut: return "inout"; + case EvqConstReadOnly: return "const"; + default: UNREACHABLE(); + } + + return ""; +} + +TString OutputHLSL::typeString(const TType &type) +{ + if (type.getBasicType() == EbtStruct) + { + if (type.getTypeName() != "") + { + return structLookup(type.getTypeName()); + } + else // Nameless structure, define in place + { + const TTypeList &fields = *type.getStruct(); + + TString string = "struct\n" + "{\n"; + + for (unsigned int i = 0; i < fields.size(); i++) + { + const TType &field = *fields[i].type; + + string += " " + typeString(field) + " " + decorate(field.getFieldName()) + arrayString(field) + ";\n"; + } + + string += "} "; + + return string; + } + } + else if (type.isMatrix()) + { + switch (type.getNominalSize()) + { + case 2: return "float2x2"; + case 3: return "float3x3"; + case 4: return "float4x4"; + } + } + 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 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: + return "sampler2D"; + case EbtSamplerCube: + return "samplerCUBE"; + case EbtSamplerExternalOES: + return "sampler2D"; + default: + break; + } + } + + UNIMPLEMENTED(); // FIXME + return "<unknown type>"; +} + +TString OutputHLSL::arrayString(const TType &type) +{ + if (!type.isArray()) + { + return ""; + } + + return "[" + str(type.getArraySize()) + "]"; +} + +TString OutputHLSL::initializer(const TType &type) +{ + TString string; + + for (int component = 0; component < type.getObjectSize(); component++) + { + string += "0"; + + if (component < type.getObjectSize() - 1) + { + string += ", "; + } + } + + return "{" + string + "}"; +} + +void OutputHLSL::addConstructor(const TType &type, const TString &name, const TIntermSequence *parameters) +{ + if (name == "") + { + return; // Nameless structures don't have constructors + } + + if (type.getStruct() && mStructNames.find(decorate(name)) != mStructNames.end()) + { + return; // Already added + } + + TType ctorType = type; + ctorType.clearArrayness(); + ctorType.setPrecision(EbpHigh); + ctorType.setQualifier(EvqTemporary); + + TString ctorName = type.getStruct() ? decorate(name) : name; + + typedef std::vector<TType> ParameterArray; + ParameterArray ctorParameters; + + if (type.getStruct()) + { + mStructNames.insert(decorate(name)); + + TString structure; + structure += "struct " + decorate(name) + "\n" + "{\n"; + + const TTypeList &fields = *type.getStruct(); + + for (unsigned int i = 0; i < fields.size(); i++) + { + const TType &field = *fields[i].type; + + structure += " " + typeString(field) + " " + decorateField(field.getFieldName(), type) + arrayString(field) + ";\n"; + } + + structure += "};\n"; + + if (std::find(mStructDeclarations.begin(), mStructDeclarations.end(), structure) == mStructDeclarations.end()) + { + mStructDeclarations.push_back(structure); + } + + for (unsigned int i = 0; i < fields.size(); i++) + { + ctorParameters.push_back(*fields[i].type); + } + } + else if (parameters) + { + for (TIntermSequence::const_iterator parameter = parameters->begin(); parameter != parameters->end(); parameter++) + { + ctorParameters.push_back((*parameter)->getAsTyped()->getType()); + } + } + else UNREACHABLE(); + + TString constructor; + + if (ctorType.getStruct()) + { + constructor += ctorName + " " + ctorName + "_ctor("; + } + else // Built-in type + { + constructor += typeString(ctorType) + " " + ctorName + "("; + } + + for (unsigned int parameter = 0; parameter < ctorParameters.size(); parameter++) + { + const TType &type = ctorParameters[parameter]; + + constructor += typeString(type) + " x" + str(parameter) + arrayString(type); + + if (parameter < ctorParameters.size() - 1) + { + constructor += ", "; + } + } + + constructor += ")\n" + "{\n"; + + if (ctorType.getStruct()) + { + constructor += " " + ctorName + " structure = {"; + } + else + { + constructor += " return " + typeString(ctorType) + "("; + } + + if (ctorType.isMatrix() && ctorParameters.size() == 1) + { + int dim = ctorType.getNominalSize(); + const TType ¶meter = ctorParameters[0]; + + if (parameter.isScalar()) + { + for (int row = 0; row < dim; row++) + { + for (int col = 0; col < dim; col++) + { + constructor += TString((row == col) ? "x0" : "0.0"); + + if (row < dim - 1 || col < dim - 1) + { + constructor += ", "; + } + } + } + } + else if (parameter.isMatrix()) + { + for (int row = 0; row < dim; row++) + { + for (int col = 0; col < dim; col++) + { + if (row < parameter.getNominalSize() && col < parameter.getNominalSize()) + { + constructor += TString("x0") + "[" + str(row) + "]" + "[" + str(col) + "]"; + } + else + { + constructor += TString((row == col) ? "1.0" : "0.0"); + } + + if (row < dim - 1 || col < dim - 1) + { + constructor += ", "; + } + } + } + } + else UNREACHABLE(); + } + else + { + int remainingComponents = ctorType.getObjectSize(); + int parameterIndex = 0; + + while (remainingComponents > 0) + { + const TType ¶meter = ctorParameters[parameterIndex]; + bool moreParameters = parameterIndex < (int)ctorParameters.size() - 1; + + constructor += "x" + str(parameterIndex); + + if (parameter.isScalar()) + { + remainingComponents -= parameter.getObjectSize(); + } + else if (parameter.isVector()) + { + if (remainingComponents == parameter.getObjectSize() || moreParameters) + { + remainingComponents -= parameter.getObjectSize(); + } + else if (remainingComponents < parameter.getNominalSize()) + { + switch (remainingComponents) + { + case 1: constructor += ".x"; break; + case 2: constructor += ".xy"; break; + case 3: constructor += ".xyz"; break; + case 4: constructor += ".xyzw"; break; + default: UNREACHABLE(); + } + + remainingComponents = 0; + } + else UNREACHABLE(); + } + else if (parameter.isMatrix() || parameter.getStruct()) + { + ASSERT(remainingComponents == parameter.getObjectSize() || moreParameters); + + remainingComponents -= parameter.getObjectSize(); + } + else UNREACHABLE(); + + if (moreParameters) + { + parameterIndex++; + } + + if (remainingComponents) + { + constructor += ", "; + } + } + } + + if (ctorType.getStruct()) + { + constructor += "};\n" + " return structure;\n" + "}\n"; + } + else + { + constructor += ");\n" + "}\n"; + } + + mConstructors.insert(constructor); +} + +const ConstantUnion *OutputHLSL::writeConstantUnion(const TType &type, const ConstantUnion *constUnion) +{ + TInfoSinkBase &out = mBody; + + if (type.getBasicType() == EbtStruct) + { + out << structLookup(type.getTypeName()) + "_ctor("; + + const TTypeList *structure = type.getStruct(); + + for (size_t i = 0; i < structure->size(); i++) + { + const TType *fieldType = (*structure)[i].type; + + constUnion = writeConstantUnion(*fieldType, constUnion); + + if (i != structure->size() - 1) + { + out << ", "; + } + } + + out << ")"; + } + else + { + int size = type.getObjectSize(); + bool writeType = size > 1; + + if (writeType) + { + out << typeString(type) << "("; + } + + for (int i = 0; i < size; i++, constUnion++) + { + switch (constUnion->getType()) + { + case EbtFloat: out << constUnion->getFConst(); break; + case EbtInt: out << constUnion->getIConst(); break; + case EbtBool: out << constUnion->getBConst(); break; + default: UNREACHABLE(); + } + + if (i != size - 1) + { + out << ", "; + } + } + + if (writeType) + { + out << ")"; + } + } + + return constUnion; +} + +TString OutputHLSL::scopeString(unsigned int depthLimit) +{ + TString string; + + for (unsigned int i = 0; i < mScopeBracket.size() && i < depthLimit; i++) + { + string += "_" + str(i); + } + + return string; +} + +TString OutputHLSL::scopedStruct(const TString &typeName) +{ + if (typeName == "") + { + return typeName; + } + + return typeName + scopeString(mScopeDepth); +} + +TString OutputHLSL::structLookup(const TString &typeName) +{ + for (int depth = mScopeDepth; depth >= 0; depth--) + { + TString scopedName = decorate(typeName + scopeString(depth)); + + for (StructNames::iterator structName = mStructNames.begin(); structName != mStructNames.end(); structName++) + { + if (*structName == scopedName) + { + return scopedName; + } + } + } + + UNREACHABLE(); // Should have found a matching constructor + + return typeName; +} + +TString OutputHLSL::decorate(const TString &string) +{ + if (string.compare(0, 3, "gl_") != 0 && string.compare(0, 3, "dx_") != 0) + { + return "_" + string; + } + + return string; +} + +TString OutputHLSL::decorateUniform(const TString &string, const TType &type) +{ + if (type.isArray()) + { + return "ar_" + string; // Allows identifying arrays of size 1 + } + else if (type.getBasicType() == EbtSamplerExternalOES) + { + return "ex_" + string; + } + + return decorate(string); +} + +TString OutputHLSL::decorateField(const TString &string, const TType &structure) +{ + if (structure.getTypeName().compare(0, 3, "gl_") != 0) + { + return decorate(string); + } + + return string; +} +} |