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Built-in symbol tables now lazily evaluated, and driven by per version, per profile input. Got all ES 100 and ES 300 built-in symbols correct.

Browse Source 
This includes
 - doing prescan of shader to know version/profile before parsing it
 - putting precision qualifiers on built-in ES symbols
 - getting most built-in state correct for core/compatibility/missing profile
 - adding gl_VertexID and gl_InstanceID, among other ES 300 built-in symbols
 - adding the ES 300 gl_Max/Min constants
 - accepting shaders that contain nothing but whitespace without generating an error


git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20627 e7fa87d3-cd2b-0410-9028-fcbf551c1848
This commit is contained in:
John Kessenich 2013-02-17 06:01:50 +00:00
parent fb5f7eadfa
commit bd0747d6f0
16 changed files with 843 additions and 491 deletions
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8
StandAlone/StandAlone.cpp
View File

@ -1,5 +1,7 @@
//
//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
//Copyright (C) 2013 LunarG, Inc.
//
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
@ -99,6 +101,12 @@ void GenerateResources(TBuiltInResource& resources)
resources.maxTextureImageUnits = 32;
resources.maxFragmentUniformComponents = 4096;
resources.maxDrawBuffers = 32;
resources.maxVertexUniformVectors = 128;
resources.maxVaryingVectors = 8;
resources.maxFragmentUniformVectors = 16;
resources.maxVertexOutputVectors = 16;
resources.minProgramTexelOffset = -8;
resources.maxProgramTexelOffset = 7;
}
int C_DECL main(int argc, char* argv[])

12
Test/comment.frag Normal file
View File

@ -0,0 +1,12 @@
//
/* anotehn t* ontuh * / tnoahnt /* oo */
/* multi line...
ao */
/* no escape \
oanot */
// escape nothing \o oeu
// escape newline \
still in a comment

2
Test/pointCoord.frag
View File

@ -1,4 +1,4 @@
precision mediump float;
precision highp float;
uniform sampler2D sampler;

3
Test/testlist
View File

@ -18,4 +18,5 @@ cppNest.vert
cppComplexExpr.vert
pointCoord.frag
array.frag
array100.frag
array100.frag
comment.frag

6
glslang/Include/BaseTypes.h
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@ -86,6 +86,10 @@ enum TStorageQualifier {
EvqInOut,
EvqConstReadOnly,
// built-ins read by vertex shader
EvqVertexId,
EvqInstanceId,
// built-ins written by vertex shader
EvqPosition,
EvqPointSize,
@ -119,6 +123,8 @@ __inline const char* getStorageQualifierString(TStorageQualifier q)
case EvqIn: return "in"; break;
case EvqOut: return "out"; break;
case EvqInOut: return "inout"; break;
case EvqVertexId: return "gl_VertexId"; break;
case EvqInstanceId: return "gl_InstanceId"; break;
case EvqPosition: return "gl_Position"; break;
case EvqPointSize: return "gl_PointSize"; break;
case EvqClipVertex: return "gl_ClipVertex"; break;

2
glslang/Include/PoolAlloc.h
View File

@ -257,7 +257,7 @@ struct TThreadGlobalPools
TPoolAllocator* globalPoolAllocator;
};
void SetGlobalPoolAllocatorPtr(TPoolAllocator* poolAllocator);
void SetGlobalPoolAllocatorPtr(TPoolAllocator& poolAllocator);
//
// This STL compatible allocator is intended to be used as the allocator

8
glslang/Include/ResourceLimits.h
View File

@ -1,5 +1,7 @@
//
//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
//Copyright (C) 2013 LunarG, Inc.
//
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
@ -48,5 +50,11 @@ struct TBuiltInResource {
int maxTextureImageUnits;
int maxFragmentUniformComponents;
int maxDrawBuffers;
int maxVertexUniformVectors;
int maxVaryingVectors;
int maxFragmentUniformVectors;
int maxVertexOutputVectors;
int minProgramTexelOffset;
int maxProgramTexelOffset;
};
#endif // _RESOURCE_LIMITS_INCLUDED_

9
glslang/Include/Types.h
View File

@ -155,6 +155,15 @@ public:
qualifier.storage = q;
qualifier.precision = EpqNone;
}
TType(TBasicType t, TStorageQualifier q, TPrecisionQualifier p, int vs = 1, int mc = 0, int mr = 0) :
type(t), vectorSize(vs), matrixCols(mc), matrixRows(mr), arraySizes(0),
structure(0), structureSize(0), maxArraySize(0), arrayInformationType(0),
fieldName(0), mangled(0), typeName(0)
{
qualifier.storage = q;
qualifier.precision = p;
assert(p >= 0 && p <= EpqHigh);
}
explicit TType(const TPublicType &p) :
type(p.type), vectorSize(p.vectorSize), matrixCols(p.matrixCols), matrixRows(p.matrixRows), arraySizes(p.arraySizes),
structure(0), structureSize(0), maxArraySize(0), arrayInformationType(0), fieldName(0), mangled(0), typeName(0)

619
glslang/MachineIndependent/Initialize.cpp
View File

@ -36,14 +36,16 @@
//
// Create strings that declare built-in definitions, add built-ins that
// cannot be expressed in the files, and establish mappings between
// cannot be expressed in the files, and establish mappings between
// built-in functions and operators.
//
#include "../Include/intermediate.h"
#include "Initialize.h"
void TBuiltIns::initialize()
const int FirstProfileVersion = 150;
void TBuiltIns::initialize(int version, EProfile profile)
{
//
// Initialize all the built-in strings for parsing.
@ -467,7 +469,7 @@ void TBuiltIns::initialize()
s.append(TString("vec4 texture3D(sampler3D sampler, vec3 coord, float bias);"));
s.append(TString("vec4 texture3DProj(sampler3D sampler, vec4 coord, float bias);"));
s.append(TString("vec4 textureCube(samplerCube sampler, vec3 coord, float bias);"));
s.append(TString("vec4 shadow1D(sampler1DShadow sampler, vec3 coord, float bias);"));
s.append(TString("vec4 shadow2D(sampler2DShadow sampler, vec3 coord, float bias);"));
s.append(TString("vec4 shadow1DProj(sampler1DShadow sampler, vec4 coord, float bias);"));
@ -498,185 +500,208 @@ void TBuiltIns::initialize()
//============================================================================
TString& s = StandardUniforms;
//
// OpenGL'uniform' state. Page numbers are in reference to version
// 1.4 of the OpenGL specification.
//
//
// Matrix state. p. 31, 32, 37, 39, 40.
//
s.append(TString("uniform mat4 gl_ModelViewMatrix;"));
s.append(TString("uniform mat4 gl_ProjectionMatrix;"));
s.append(TString("uniform mat4 gl_ModelViewProjectionMatrix;"));
//
// Derived matrix state that provides inverse and transposed versions
// of the matrices above.
//
s.append(TString("uniform mat3 gl_NormalMatrix;"));
s.append(TString("uniform mat4 gl_ModelViewMatrixInverse;"));
s.append(TString("uniform mat4 gl_ProjectionMatrixInverse;"));
s.append(TString("uniform mat4 gl_ModelViewProjectionMatrixInverse;"));
s.append(TString("uniform mat4 gl_ModelViewMatrixTranspose;"));
s.append(TString("uniform mat4 gl_ProjectionMatrixTranspose;"));
s.append(TString("uniform mat4 gl_ModelViewProjectionMatrixTranspose;"));
s.append(TString("uniform mat4 gl_ModelViewMatrixInverseTranspose;"));
s.append(TString("uniform mat4 gl_ProjectionMatrixInverseTranspose;"));
s.append(TString("uniform mat4 gl_ModelViewProjectionMatrixInverseTranspose;"));
//
// Normal scaling p. 39.
//
s.append(TString("uniform float gl_NormalScale;"));
//
// Depth range in window coordinates, p. 33
//
s.append(TString("struct gl_DepthRangeParameters {"));
s.append(TString(" float near;")); // n
s.append(TString(" float far;")); // f
s.append(TString(" float diff;")); // f - n
if (profile == EEsProfile) {
s.append(TString(" highp float near;")); // n
s.append(TString(" highp float far;")); // f
s.append(TString(" highp float diff;")); // f - n
} else {
s.append(TString(" float near;")); // n
s.append(TString(" float far;")); // f
s.append(TString(" float diff;")); // f - n
}
s.append(TString("};"));
s.append(TString("uniform gl_DepthRangeParameters gl_DepthRange;"));
if (profile != EEsProfile && (version < FirstProfileVersion || profile == ECompatibilityProfile)) {
//
// Matrix state. p. 31, 32, 37, 39, 40.
//
s.append(TString("uniform mat4 gl_ModelViewMatrix;"));
s.append(TString("uniform mat4 gl_ProjectionMatrix;"));
s.append(TString("uniform mat4 gl_ModelViewProjectionMatrix;"));
//
// Point Size, p. 66, 67.
//
s.append(TString("struct gl_PointParameters {"));
s.append(TString(" float size;"));
s.append(TString(" float sizeMin;"));
s.append(TString(" float sizeMax;"));
s.append(TString(" float fadeThresholdSize;"));
s.append(TString(" float distanceConstantAttenuation;"));
s.append(TString(" float distanceLinearAttenuation;"));
s.append(TString(" float distanceQuadraticAttenuation;"));
s.append(TString("};"));
s.append(TString("uniform gl_PointParameters gl_Point;"));
//
// Derived matrix state that provides inverse and transposed versions
// of the matrices above.
//
s.append(TString("uniform mat3 gl_NormalMatrix;"));
//
// Material State p. 50, 55.
//
s.append(TString("struct gl_MaterialParameters {"));
s.append(TString(" vec4 emission;")); // Ecm
s.append(TString(" vec4 ambient;")); // Acm
s.append(TString(" vec4 diffuse;")); // Dcm
s.append(TString(" vec4 specular;")); // Scm
s.append(TString(" float shininess;")); // Srm
s.append(TString("};"));
s.append(TString("uniform gl_MaterialParameters gl_FrontMaterial;"));
s.append(TString("uniform gl_MaterialParameters gl_BackMaterial;"));
s.append(TString("uniform mat4 gl_ModelViewMatrixInverse;"));
s.append(TString("uniform mat4 gl_ProjectionMatrixInverse;"));
s.append(TString("uniform mat4 gl_ModelViewProjectionMatrixInverse;"));
//
// Light State p 50, 53, 55.
//
s.append(TString("uniform mat4 gl_ModelViewMatrixTranspose;"));
s.append(TString("uniform mat4 gl_ProjectionMatrixTranspose;"));
s.append(TString("uniform mat4 gl_ModelViewProjectionMatrixTranspose;"));
s.append(TString("struct gl_LightSourceParameters {"));
s.append(TString(" vec4 ambient;")); // Acli
s.append(TString(" vec4 diffuse;")); // Dcli
s.append(TString(" vec4 specular;")); // Scli
s.append(TString(" vec4 position;")); // Ppli
s.append(TString(" vec4 halfVector;")); // Derived: Hi
s.append(TString(" vec3 spotDirection;")); // Sdli
s.append(TString(" float spotExponent;")); // Srli
s.append(TString(" float spotCutoff;")); // Crli
// (range: [0.0,90.0], 180.0)
s.append(TString(" float spotCosCutoff;")); // Derived: cos(Crli)
// (range: [1.0,0.0],-1.0)
s.append(TString(" float constantAttenuation;")); // K0
s.append(TString(" float linearAttenuation;")); // K1
s.append(TString(" float quadraticAttenuation;"));// K2
s.append(TString("};"));
s.append(TString("uniform mat4 gl_ModelViewMatrixInverseTranspose;"));
s.append(TString("uniform mat4 gl_ProjectionMatrixInverseTranspose;"));
s.append(TString("uniform mat4 gl_ModelViewProjectionMatrixInverseTranspose;"));
//
// Normal scaling p. 39.
//
s.append(TString("uniform float gl_NormalScale;"));
//
// Point Size, p. 66, 67.
//
s.append(TString("struct gl_PointParameters {"));
s.append(TString(" float size;"));
s.append(TString(" float sizeMin;"));
s.append(TString(" float sizeMax;"));
s.append(TString(" float fadeThresholdSize;"));
s.append(TString(" float distanceConstantAttenuation;"));
s.append(TString(" float distanceLinearAttenuation;"));
s.append(TString(" float distanceQuadraticAttenuation;"));
s.append(TString("};"));
s.append(TString("uniform gl_PointParameters gl_Point;"));
//
// Material State p. 50, 55.
//
s.append(TString("struct gl_MaterialParameters {"));
s.append(TString(" vec4 emission;")); // Ecm
s.append(TString(" vec4 ambient;")); // Acm
s.append(TString(" vec4 diffuse;")); // Dcm
s.append(TString(" vec4 specular;")); // Scm
s.append(TString(" float shininess;")); // Srm
s.append(TString("};"));
s.append(TString("uniform gl_MaterialParameters gl_FrontMaterial;"));
s.append(TString("uniform gl_MaterialParameters gl_BackMaterial;"));
//
// Light State p 50, 53, 55.
//
s.append(TString("struct gl_LightSourceParameters {"));
s.append(TString(" vec4 ambient;")); // Acli
s.append(TString(" vec4 diffuse;")); // Dcli
s.append(TString(" vec4 specular;")); // Scli
s.append(TString(" vec4 position;")); // Ppli
s.append(TString(" vec4 halfVector;")); // Derived: Hi
s.append(TString(" vec3 spotDirection;")); // Sdli
s.append(TString(" float spotExponent;")); // Srli
s.append(TString(" float spotCutoff;")); // Crli
// (range: [0.0,90.0], 180.0)
s.append(TString(" float spotCosCutoff;")); // Derived: cos(Crli)
// (range: [1.0,0.0],-1.0)
s.append(TString(" float constantAttenuation;")); // K0
s.append(TString(" float linearAttenuation;")); // K1
s.append(TString(" float quadraticAttenuation;"));// K2
s.append(TString("};"));
s.append(TString("struct gl_LightModelParameters {"));
s.append(TString(" vec4 ambient;")); // Acs
s.append(TString("};"));
s.append(TString("struct gl_LightModelParameters {"));
s.append(TString(" vec4 ambient;")); // Acs
s.append(TString("};"));
s.append(TString("uniform gl_LightModelParameters gl_LightModel;"));
s.append(TString("uniform gl_LightModelParameters gl_LightModel;"));
//
// Derived state from products of light and material.
//
//
// Derived state from products of light and material.
//
s.append(TString("struct gl_LightModelProducts {"));
s.append(TString(" vec4 sceneColor;")); // Derived. Ecm + Acm * Acs
s.append(TString("};"));
s.append(TString("struct gl_LightModelProducts {"));
s.append(TString(" vec4 sceneColor;")); // Derived. Ecm + Acm * Acs
s.append(TString("};"));
s.append(TString("uniform gl_LightModelProducts gl_FrontLightModelProduct;"));
s.append(TString("uniform gl_LightModelProducts gl_BackLightModelProduct;"));
s.append(TString("uniform gl_LightModelProducts gl_FrontLightModelProduct;"));
s.append(TString("uniform gl_LightModelProducts gl_BackLightModelProduct;"));
s.append(TString("struct gl_LightProducts {"));
s.append(TString(" vec4 ambient;")); // Acm * Acli
s.append(TString(" vec4 diffuse;")); // Dcm * Dcli
s.append(TString(" vec4 specular;")); // Scm * Scli
s.append(TString("};"));
s.append(TString("struct gl_LightProducts {"));
s.append(TString(" vec4 ambient;")); // Acm * Acli
s.append(TString(" vec4 diffuse;")); // Dcm * Dcli
s.append(TString(" vec4 specular;")); // Scm * Scli
s.append(TString("};"));
//
// Fog p. 161
//
s.append(TString("struct gl_FogParameters {"));
s.append(TString(" vec4 color;"));
s.append(TString(" float density;"));
s.append(TString(" float start;"));
s.append(TString(" float end;"));
s.append(TString(" float scale;")); // 1 / (gl_FogEnd - gl_FogStart)
s.append(TString("};"));
//
// Fog p. 161
//
s.append(TString("struct gl_FogParameters {"));
s.append(TString(" vec4 color;"));
s.append(TString(" float density;"));
s.append(TString(" float start;"));
s.append(TString(" float end;"));
s.append(TString(" float scale;")); // 1 / (gl_FogEnd - gl_FogStart)
s.append(TString("};"));
s.append(TString("uniform gl_FogParameters gl_Fog;"));
s.append(TString("uniform gl_FogParameters gl_Fog;"));
}
s.append(TString("\n"));
}
{
//============================================================================
//
// Vertex attributes, p. 19.
//
//============================================================================
//============================================================================
//
// Vertex attributes, p. 19.
//
//============================================================================
if (profile != EEsProfile) {
TString& s = StandardVertexAttributes;
s.append(TString("attribute vec4 gl_Color;"));
s.append(TString("attribute vec4 gl_SecondaryColor;"));
s.append(TString("attribute vec3 gl_Normal;"));
s.append(TString("attribute vec4 gl_Vertex;"));
s.append(TString("attribute vec4 gl_MultiTexCoord0;"));
s.append(TString("attribute vec4 gl_MultiTexCoord1;"));
s.append(TString("attribute vec4 gl_MultiTexCoord2;"));
s.append(TString("attribute vec4 gl_MultiTexCoord3;"));
s.append(TString("attribute vec4 gl_MultiTexCoord4;"));
s.append(TString("attribute vec4 gl_MultiTexCoord5;"));
s.append(TString("attribute vec4 gl_MultiTexCoord6;"));
s.append(TString("attribute vec4 gl_MultiTexCoord7;"));
s.append(TString("attribute float gl_FogCoord;"));
if (version < 130) {
s.append(TString("attribute vec4 gl_Color;"));
s.append(TString("attribute vec4 gl_SecondaryColor;"));
s.append(TString("attribute vec3 gl_Normal;"));
s.append(TString("attribute vec4 gl_Vertex;"));
s.append(TString("attribute vec4 gl_MultiTexCoord0;"));
s.append(TString("attribute vec4 gl_MultiTexCoord1;"));
s.append(TString("attribute vec4 gl_MultiTexCoord2;"));
s.append(TString("attribute vec4 gl_MultiTexCoord3;"));
s.append(TString("attribute vec4 gl_MultiTexCoord4;"));
s.append(TString("attribute vec4 gl_MultiTexCoord5;"));
s.append(TString("attribute vec4 gl_MultiTexCoord6;"));
s.append(TString("attribute vec4 gl_MultiTexCoord7;"));
s.append(TString("attribute float gl_FogCoord;"));
} else if (version < FirstProfileVersion || profile == ECompatibilityProfile) {
s.append(TString("in vec4 gl_Color;"));
s.append(TString("in vec4 gl_SecondaryColor;"));
s.append(TString("in vec3 gl_Normal;"));
s.append(TString("in vec4 gl_Vertex;"));
s.append(TString("in vec4 gl_MultiTexCoord0;"));
s.append(TString("in vec4 gl_MultiTexCoord1;"));
s.append(TString("in vec4 gl_MultiTexCoord2;"));
s.append(TString("in vec4 gl_MultiTexCoord3;"));
s.append(TString("in vec4 gl_MultiTexCoord4;"));
s.append(TString("in vec4 gl_MultiTexCoord5;"));
s.append(TString("in vec4 gl_MultiTexCoord6;"));
s.append(TString("in vec4 gl_MultiTexCoord7;"));
s.append(TString("in float gl_FogCoord;"));
}
s.append(TString("\n"));
}
{
//============================================================================
//
// Define the output varying interface from the vertex shader.
//
//============================================================================
//============================================================================
//
// Define the output varying interface from the vertex shader.
//
//============================================================================
if (profile != EEsProfile) {
TString& s = StandardVertexVaryings;
s.append(TString("varying vec4 gl_FrontColor;"));
s.append(TString("varying vec4 gl_BackColor;"));
s.append(TString("varying vec4 gl_FrontSecondaryColor;"));
s.append(TString("varying vec4 gl_BackSecondaryColor;"));
s.append(TString("varying vec4 gl_TexCoord[];"));
s.append(TString("varying float gl_FogFragCoord;"));
if (version < 130) {
s.append(TString("varying vec4 gl_FrontColor;"));
s.append(TString("varying vec4 gl_BackColor;"));
s.append(TString("varying vec4 gl_FrontSecondaryColor;"));
s.append(TString("varying vec4 gl_BackSecondaryColor;"));
s.append(TString("varying vec4 gl_TexCoord[];"));
s.append(TString("varying float gl_FogFragCoord;"));
} else if (version < FirstProfileVersion || profile == ECompatibilityProfile) {
s.append(TString("out vec4 gl_FrontColor;"));
s.append(TString("out vec4 gl_BackColor;"));
s.append(TString("out vec4 gl_FrontSecondaryColor;"));
s.append(TString("out vec4 gl_BackSecondaryColor;"));
s.append(TString("out vec4 gl_TexCoord[];"));
s.append(TString("out float gl_FogFragCoord;"));
}
s.append(TString("\n"));
}
@ -687,14 +712,22 @@ void TBuiltIns::initialize()
//
//============================================================================
TString& s = StandardFragmentVaryings;
if (profile != EEsProfile) {
TString& s = StandardFragmentVaryings;
if (version < 130) {
s.append(TString("varying vec4 gl_Color;"));
s.append(TString("varying vec4 gl_SecondaryColor;"));
s.append(TString("varying vec4 gl_TexCoord[];"));
s.append(TString("varying float gl_FogFragCoord;"));
} else if (version < FirstProfileVersion || profile == ECompatibilityProfile) {
s.append(TString("in vec4 gl_Color;"));
s.append(TString("in vec4 gl_SecondaryColor;"));
s.append(TString("in vec4 gl_TexCoord[];"));
s.append(TString("in float gl_FogFragCoord;"));
}
s.append(TString("varying vec4 gl_Color;"));
s.append(TString("varying vec4 gl_SecondaryColor;"));
s.append(TString("varying vec4 gl_TexCoord[];"));
s.append(TString("varying float gl_FogFragCoord;"));
s.append(TString("\n"));
s.append(TString("\n"));
}
}
builtInStrings[EShLangFragment].push_back(BuiltInFunctions.c_str());
@ -710,12 +743,12 @@ void TBuiltIns::initialize()
}
void TBuiltIns::initialize(const TBuiltInResource &resources)
void TBuiltIns::initialize(const TBuiltInResource &resources, int version, EProfile profile, EShLanguage language)
{
//
// Initialize the context-dependent (resource-dependent) built-in strings for parsing.
//
TString StandardUniforms;
TString StandardUniforms;
{
//============================================================================
@ -725,97 +758,137 @@ void TBuiltIns::initialize(const TBuiltInResource &resources)
//============================================================================
TString& s = StandardUniforms;
const int maxSize = 80;
char builtInConstant[maxSize];
//
// Implementation dependent constants. The example values below
// are the minimum values allowed for these maximums.
//
const int maxSize = 80;
char builtInConstant[maxSize];
snprintf(builtInConstant, maxSize, "const int gl_MaxLights = %d;", resources.maxLights); // GL 1.0
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxClipPlanes = %d;", resources.maxClipPlanes); // GL 1.0
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxTextureUnits = %d;", resources.maxTextureUnits); // GL 1.2
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxTextureCoords = %d;", resources.maxTextureCoords); // ARB_fragment_program
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxVertexAttribs = %d;", resources.maxVertexAttribs); // ARB_vertex_shader
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxVertexUniformComponents = %d;", resources.maxVertexUniformComponents); // ARB_vertex_shader
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxVaryingFloats = %d;", resources.maxVaryingFloats); // ARB_vertex_shader
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxVertexTextureImageUnits = %d;", resources.maxVertexTextureImageUnits); // ARB_vertex_shader
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxCombinedTextureImageUnits = %d;", resources.maxCombinedTextureImageUnits); // ARB_vertex_shader
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxTextureImageUnits = %d;", resources.maxTextureImageUnits); // ARB_fragment_shader
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxFragmentUniformComponents = %d;", resources.maxFragmentUniformComponents); // ARB_fragment_shader
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxDrawBuffers = %d;", resources.maxDrawBuffers); // proposed ARB_draw_buffers
s.append(TString(builtInConstant));
//
// OpenGL'uniform' state. Page numbers are in reference to version
// 1.4 of the OpenGL specification.
//
if (profile == EEsProfile) {
snprintf(builtInConstant, maxSize, "const mediump int gl_MaxVertexAttribs = %d;", resources.maxVertexAttribs);
s.append(TString(builtInConstant));
//
// Matrix state. p. 31, 32, 37, 39, 40.
//
s.append(TString("uniform mat4 gl_TextureMatrix[gl_MaxTextureCoords];"));
snprintf(builtInConstant, maxSize, "const mediump int gl_MaxVertexUniformVectors = %d;", resources.maxVertexUniformVectors);
s.append(TString(builtInConstant));
//
// Derived matrix state that provides inverse and transposed versions
// of the matrices above.
//
s.append(TString("uniform mat4 gl_TextureMatrixInverse[gl_MaxTextureCoords];"));
snprintf(builtInConstant, maxSize, "const mediump int gl_MaxVertexTextureImageUnits = %d;", resources.maxVertexTextureImageUnits);
s.append(TString(builtInConstant));
s.append(TString("uniform mat4 gl_TextureMatrixTranspose[gl_MaxTextureCoords];"));
snprintf(builtInConstant, maxSize, "const mediump int gl_MaxCombinedTextureImageUnits = %d;", resources.maxCombinedTextureImageUnits);
s.append(TString(builtInConstant));
s.append(TString("uniform mat4 gl_TextureMatrixInverseTranspose[gl_MaxTextureCoords];"));
snprintf(builtInConstant, maxSize, "const mediump int gl_MaxTextureImageUnits = %d;", resources.maxTextureImageUnits);
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const mediump int gl_MaxFragmentUniformVectors = %d;", resources.maxFragmentUniformVectors);
s.append(TString(builtInConstant));
//
// Clip planes p. 42.
//
s.append(TString("uniform vec4 gl_ClipPlane[gl_MaxClipPlanes];"));
snprintf(builtInConstant, maxSize, "const mediump int gl_MaxDrawBuffers = %d;", resources.maxDrawBuffers);
s.append(TString(builtInConstant));
//
// Light State p 50, 53, 55.
//
s.append(TString("uniform gl_LightSourceParameters gl_LightSource[gl_MaxLights];"));
if (version == 100) {
snprintf(builtInConstant, maxSize, "const mediump int gl_MaxVaryingVectors = %d;", resources.maxVaryingVectors);
s.append(TString(builtInConstant));
} else {
snprintf(builtInConstant, maxSize, "const mediump int gl_MaxVertexOutputVectors = %d;", resources.maxVertexOutputVectors);
s.append(TString(builtInConstant));
//
// Derived state from products of light.
//
s.append(TString("uniform gl_LightProducts gl_FrontLightProduct[gl_MaxLights];"));
s.append(TString("uniform gl_LightProducts gl_BackLightProduct[gl_MaxLights];"));
snprintf(builtInConstant, maxSize, "const mediump int gl_MinProgramTexelOffset = %d;", resources.minProgramTexelOffset);
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const mediump int gl_MaxProgramTexelOffset = %d;", resources.maxProgramTexelOffset);
s.append(TString(builtInConstant));
}
} else {
snprintf(builtInConstant, maxSize, "const int gl_MaxVertexAttribs = %d;", resources.maxVertexAttribs);
s.append(TString(builtInConstant));
//
// Textureg Environment and Generation, p. 152, p. 40-42.
//
s.append(TString("uniform vec4 gl_TextureEnvColor[gl_MaxTextureImageUnits];"));
s.append(TString("uniform vec4 gl_EyePlaneS[gl_MaxTextureCoords];"));
s.append(TString("uniform vec4 gl_EyePlaneT[gl_MaxTextureCoords];"));
s.append(TString("uniform vec4 gl_EyePlaneR[gl_MaxTextureCoords];"));
s.append(TString("uniform vec4 gl_EyePlaneQ[gl_MaxTextureCoords];"));
s.append(TString("uniform vec4 gl_ObjectPlaneS[gl_MaxTextureCoords];"));
s.append(TString("uniform vec4 gl_ObjectPlaneT[gl_MaxTextureCoords];"));
s.append(TString("uniform vec4 gl_ObjectPlaneR[gl_MaxTextureCoords];"));
s.append(TString("uniform vec4 gl_ObjectPlaneQ[gl_MaxTextureCoords];"));
snprintf(builtInConstant, maxSize, "const int gl_MaxVertexTextureImageUnits = %d;", resources.maxVertexTextureImageUnits);
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxCombinedTextureImageUnits = %d;", resources.maxCombinedTextureImageUnits);
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxTextureImageUnits = %d;", resources.maxTextureImageUnits);
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxDrawBuffers = %d;", resources.maxDrawBuffers);
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxLights = %d;", resources.maxLights);
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxClipPlanes = %d;", resources.maxClipPlanes);
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxTextureUnits = %d;", resources.maxTextureUnits);
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxTextureCoords = %d;", resources.maxTextureCoords);
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxVertexUniformComponents = %d;", resources.maxVertexUniformComponents);
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxVaryingFloats = %d;", resources.maxVaryingFloats);
s.append(TString(builtInConstant));
snprintf(builtInConstant, maxSize, "const int gl_MaxFragmentUniformComponents = %d;", resources.maxFragmentUniformComponents);
s.append(TString(builtInConstant));
if (version < FirstProfileVersion || profile == ECompatibilityProfile) {
//
// OpenGL'uniform' state. Page numbers are in reference to version
// 1.4 of the OpenGL specification.
//
//
// Matrix state. p. 31, 32, 37, 39, 40.
//
s.append(TString("uniform mat4 gl_TextureMatrix[gl_MaxTextureCoords];"));
//
// Derived matrix state that provides inverse and transposed versions
// of the matrices above.
//
s.append(TString("uniform mat4 gl_TextureMatrixInverse[gl_MaxTextureCoords];"));
s.append(TString("uniform mat4 gl_TextureMatrixTranspose[gl_MaxTextureCoords];"));
s.append(TString("uniform mat4 gl_TextureMatrixInverseTranspose[gl_MaxTextureCoords];"));
//
// Clip planes p. 42.
//
s.append(TString("uniform vec4 gl_ClipPlane[gl_MaxClipPlanes];"));
//
// Light State p 50, 53, 55.
//
s.append(TString("uniform gl_LightSourceParameters gl_LightSource[gl_MaxLights];"));
//
// Derived state from products of light.
//
s.append(TString("uniform gl_LightProducts gl_FrontLightProduct[gl_MaxLights];"));
s.append(TString("uniform gl_LightProducts gl_BackLightProduct[gl_MaxLights];"));
//
// Textureg Environment and Generation, p. 152, p. 40-42.
//
s.append(TString("uniform vec4 gl_TextureEnvColor[gl_MaxTextureImageUnits];"));
s.append(TString("uniform vec4 gl_EyePlaneS[gl_MaxTextureCoords];"));
s.append(TString("uniform vec4 gl_EyePlaneT[gl_MaxTextureCoords];"));
s.append(TString("uniform vec4 gl_EyePlaneR[gl_MaxTextureCoords];"));
s.append(TString("uniform vec4 gl_EyePlaneQ[gl_MaxTextureCoords];"));
s.append(TString("uniform vec4 gl_ObjectPlaneS[gl_MaxTextureCoords];"));
s.append(TString("uniform vec4 gl_ObjectPlaneT[gl_MaxTextureCoords];"));
s.append(TString("uniform vec4 gl_ObjectPlaneR[gl_MaxTextureCoords];"));
s.append(TString("uniform vec4 gl_ObjectPlaneQ[gl_MaxTextureCoords];"));
}
}
s.append(TString("\n"));
}
@ -824,28 +897,57 @@ void TBuiltIns::initialize(const TBuiltInResource &resources)
builtInStrings[EShLangVertex].push_back(StandardUniforms);
}
void IdentifyBuiltIns(EShLanguage language, TSymbolTable& symbolTable)
void IdentifyBuiltIns(int version, EProfile profile, EShLanguage language, TSymbolTable& symbolTable)
{
TPrecisionQualifier pq;
//
// First, insert some special built-in variables that are not in
// the built-in header files.
// First, insert some special built-in variables that are not in
// the built-in text strings.
//
switch(language) {
case EShLangFragment:
symbolTable.insert(*new TVariable(NewPoolTString("gl_FrontFacing"), TType(EbtBool, EvqFace, 1)));
symbolTable.insert(*new TVariable(NewPoolTString("gl_FragCoord"), TType(EbtFloat, EvqFragCoord, 4)));
symbolTable.insert(*new TVariable(NewPoolTString("gl_PointCoord"), TType(EbtFloat, EvqPointCoord, 2)));
symbolTable.insert(*new TVariable(NewPoolTString("gl_FrontFacing"), TType(EbtBool, EvqFace, 1)));
symbolTable.insert(*new TVariable(NewPoolTString("gl_FragColor"), TType(EbtFloat, EvqFragColor, 4)));
symbolTable.insert(*new TVariable(NewPoolTString("gl_FragDepth"), TType(EbtFloat, EvqFragDepth, 1)));
if (profile == EEsProfile)
pq = version == 100 ? EpqMedium : EpqHigh;
else
pq = EpqNone;
symbolTable.insert(*new TVariable(NewPoolTString("gl_FragCoord"), TType(EbtFloat, EvqFragCoord, pq, 4)));
if (profile == EEsProfile || version >= 120) {
pq = profile == EEsProfile ? EpqMedium : EpqNone;
symbolTable.insert(*new TVariable(NewPoolTString("gl_PointCoord"), TType(EbtFloat, EvqPointCoord, pq, 2)));
}
if (version < FirstProfileVersion || profile == ECompatibilityProfile) {
pq = profile == EEsProfile ? EpqMedium : EpqNone;
symbolTable.insert(*new TVariable(NewPoolTString("gl_FragColor"), TType(EbtFloat, EvqFragColor, pq, 4)));
}
if (profile != EEsProfile || version > 100) {
pq = profile == EEsProfile ? EpqHigh : EpqNone;
symbolTable.insert(*new TVariable(NewPoolTString("gl_FragDepth"), TType(EbtFloat, EvqFragDepth, pq, 1)));
}
break;
case EShLangVertex:
symbolTable.insert(*new TVariable(NewPoolTString("gl_Position"), TType(EbtFloat, EvqPosition, 4)));
symbolTable.insert(*new TVariable(NewPoolTString("gl_PointSize"), TType(EbtFloat, EvqPointSize, 1)));
symbolTable.insert(*new TVariable(NewPoolTString("gl_ClipVertex"), TType(EbtFloat, EvqClipVertex, 4)));
pq = profile == EEsProfile ? EpqHigh : EpqNone;
symbolTable.insert(*new TVariable(NewPoolTString("gl_Position"), TType(EbtFloat, EvqPosition, pq, 4)));
pq = profile == EEsProfile ? (version > 100 ? EpqHigh : EpqMedium) : EpqNone;
symbolTable.insert(*new TVariable(NewPoolTString("gl_PointSize"), TType(EbtFloat, EvqPointSize, pq, 1)));
if (profile != EEsProfile)
symbolTable.insert(*new TVariable(NewPoolTString("gl_ClipVertex"), TType(EbtFloat, EvqClipVertex, 4)));
if (version >= 130) {
pq = profile == EEsProfile ? EpqHigh : EpqNone;
symbolTable.insert(*new TVariable(NewPoolTString("gl_VertexID"), TType(EbtInt, EvqVertexId, pq, 1)));
if (version >= 140)
symbolTable.insert(*new TVariable(NewPoolTString("gl_InstanceID"), TType(EbtInt, EvqInstanceId, pq, 1)));
}
break;
case EShLangTessControl:
case EShLangTessEvaluation:
case EShLangGeometry:
@ -870,7 +972,7 @@ void IdentifyBuiltIns(EShLanguage language, TSymbolTable& symbolTable)
symbolTable.relateToOperator("greaterThan", EOpGreaterThan);
symbolTable.relateToOperator("lessThanEqual", EOpLessThanEqual);
symbolTable.relateToOperator("greaterThanEqual", EOpGreaterThanEqual);
symbolTable.relateToOperator("radians", EOpRadians);
symbolTable.relateToOperator("degrees", EOpDegrees);
symbolTable.relateToOperator("sin", EOpSin);
@ -908,7 +1010,7 @@ void IdentifyBuiltIns(EShLanguage language, TSymbolTable& symbolTable)
symbolTable.relateToOperator("faceforward", EOpFaceForward);
symbolTable.relateToOperator("reflect", EOpReflect);
symbolTable.relateToOperator("refract", EOpRefract);
symbolTable.relateToOperator("any", EOpAny);
symbolTable.relateToOperator("all", EOpAll);
@ -916,10 +1018,10 @@ void IdentifyBuiltIns(EShLanguage language, TSymbolTable& symbolTable)
case EShLangVertex:
break;
case EShLangFragment:
symbolTable.relateToOperator("dFdx", EOpDPdx);
symbolTable.relateToOperator("dFdy", EOpDPdy);
symbolTable.relateToOperator("dFdx", EOpDPdx);
symbolTable.relateToOperator("dFdy", EOpDPdy);
symbolTable.relateToOperator("fwidth", EOpFwidth);
break;
@ -928,16 +1030,17 @@ void IdentifyBuiltIns(EShLanguage language, TSymbolTable& symbolTable)
}
}
void IdentifyBuiltIns(EShLanguage language, TSymbolTable& symbolTable, const TBuiltInResource &resources)
void IdentifyBuiltIns(int version, EProfile profile, EShLanguage language, TSymbolTable& symbolTable, const TBuiltInResource &resources)
{
//
// First, insert some special built-in variables that are not in
// the built-in header files.
// Set resource-specific built-ins not yet handled.
//
switch(language) {
case EShLangFragment: {
// Set up gl_FragData. The array size.
case EShLangFragment:
// Set up gl_FragData based on current array size.
if (version < FirstProfileVersion || profile == ECompatibilityProfile) {
TPrecisionQualifier pq = profile == EEsProfile ? EpqMedium : EpqNone;
TType fragData(EbtFloat, EvqFragColor, 4);
TArraySizes arraySizes = NewPoolTArraySizes();
arraySizes->push_back(resources.maxDrawBuffers);

13
glslang/MachineIndependent/Initialize.h
View File

@ -1,5 +1,7 @@
//
//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
//Copyright (C) 2013 LunarG, Inc.
//
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
@ -39,23 +41,22 @@
#include "../Include/Common.h"
#include "../Include/ShHandle.h"
#include "SymbolTable.h"
#include "Versions.h"
typedef TVector<TString> TBuiltInStrings;
class TBuiltIns {
public:
POOL_ALLOCATOR_NEW_DELETE(GlobalPoolAllocator)
void initialize();
void initialize(const TBuiltInResource& resources);
void initialize(int version, EProfile);
void initialize(const TBuiltInResource& resources, int version, EProfile, EShLanguage);
TBuiltInStrings* getBuiltInStrings() { return builtInStrings; }
protected:
TBuiltInStrings builtInStrings[EShLangCount];
};
void IdentifyBuiltIns(EShLanguage, TSymbolTable&);
void IdentifyBuiltIns(EShLanguage, TSymbolTable&, const TBuiltInResource &resources);
bool GenerateBuiltInSymbolTable(const TBuiltInResource* resources, TInfoSink&, TSymbolTable*, EShLanguage language = EShLangCount);
bool InitializeSymbolTable(TBuiltInStrings* BuiltInStrings, EShLanguage language, TInfoSink& infoSink, const TBuiltInResource *resources, TSymbolTable*);
void IdentifyBuiltIns(int version, EProfile profile, EShLanguage, TSymbolTable&);
void IdentifyBuiltIns(int version, EProfile profile, EShLanguage, TSymbolTable&, const TBuiltInResource &resources);
extern "C" int InitPreprocessor(void);
extern "C" int FinalizePreprocessor(void);

123
glslang/MachineIndependent/ParseHelper.cpp
View File

@ -38,95 +38,43 @@
#include "Include/InitializeParseContext.h"
#include "osinclude.h"
#include <stdarg.h>
TParseContext::TParseContext(TSymbolTable& symt, TIntermediate& interm, int v, EProfile p, EShLanguage L, TInfoSink& is) :
intermediate(interm), symbolTable(symt), infoSink(is), language(L), treeRoot(0),
recoveredFromError(false), numErrors(0), lexAfterType(false), loopNestingLevel(0),
switchNestingLevel(0), inTypeParen(false),
version(v), profile(p), futureCompatibility(false),
contextPragma(true, false)
{
for (int type = 0; type < EbtNumTypes; ++type)
defaultPrecision[type] = EpqNone;
if (profile == EEsProfile) {
switch (language) {
case EShLangVertex:
defaultPrecision[EbtInt] = EpqHigh;
defaultPrecision[EbtFloat] = EpqHigh;
defaultPrecision[EbtSampler2D] = EpqLow;
defaultPrecision[EbtSamplerCube] = EpqLow;
break;
case EShLangFragment:
defaultPrecision[EbtInt] = EpqMedium;
defaultPrecision[EbtSampler2D] = EpqLow;
defaultPrecision[EbtSamplerCube] = EpqLow;
// TODO: give error when using float in frag shader without default precision
break;
default:
error(1, "INTERNAL ERROR", "unexpected language", "");
}
}
}
///////////////////////////////////////////////////////////////////////
//
// Sub- vector and matrix fields
//
////////////////////////////////////////////////////////////////////////
TParseContext::TParseContext(TSymbolTable& symt, TIntermediate& interm, EShLanguage L, TInfoSink& is, int defaultVersion) :
intermediate(interm), symbolTable(symt), infoSink(is), language(L), treeRoot(0),
recoveredFromError(false), numErrors(0), lexAfterType(false), loopNestingLevel(0),
switchNestingLevel(0), inTypeParen(false),
futureCompatibility(false),
contextPragma(true, false)
{
// Default precisions for version 110, to be overridden for
// other versions/profiles/stage combinations
for (int type = 0; type < EbtNumTypes; ++type)
defaultPrecision[type] = EpqNone;
setVersion(defaultVersion);
setProfile(ENoProfile);
}
void TParseContext::setVersion(int newVersion)
{
version = newVersion;
if (version == 100 || version == 300) {
if (language == EShLangVertex) {
defaultPrecision[EbtInt] = EpqHigh;
defaultPrecision[EbtFloat] = EpqHigh;
defaultPrecision[EbtSampler2D] = EpqLow;
defaultPrecision[EbtSamplerCube] = EpqLow;
}
if (language == EShLangFragment) {
defaultPrecision[EbtInt] = EpqMedium;
defaultPrecision[EbtSampler2D] = EpqLow;
defaultPrecision[EbtSamplerCube] = EpqLow;
// TODO: give error when using float in frag shader without default precision
}
} else {
for (int type = 0; type < EbtNumTypes; ++type)
defaultPrecision[type] = EpqNone;
}
}
// Important assumption: SetVersion() is called before SetProfile(), and is always called
// if there is a version, sending in a ENoProfile if there is no profile given.
void TParseContext::setProfile(EProfile newProfile)
{
const int FirstProfileVersion = 150;
if (newProfile == ENoProfile) {
if (version == 300) {
error(1, "version 300 requires specifying the 'es' profile", "#version", "");
profile = EEsProfile;
} else if (version == 100)
profile = EEsProfile;
else if (version >= FirstProfileVersion)
profile = ECoreProfile;
else
profile = ENoProfile;
} else {
// a profile was provided...
if (version < 150) {
error(1, "versions before 150 do not allow a profile token", "#version", "");
if (version == 100)
profile = EEsProfile;
else
profile = ENoProfile;
} else if (version == 300) {
if (newProfile != EEsProfile)
error(1, "only version 300 supports the es profile", "#version", "");
profile = EEsProfile;
} else {
if (newProfile == EEsProfile) {
error(1, "only version 300 supports the es profile", "#version", "");
if (version >= FirstProfileVersion)
profile = ECoreProfile;
else
profile = ENoProfile;
} else {
// typical desktop case... e.g., "#version 410 core"
profile = newProfile;
}
}
}
}
//
// Look at a '.' field selector string and change it into offsets
// for a vector.
@ -380,6 +328,8 @@ bool TParseContext::lValueErrorCheck(int line, const char* op, TIntermTyped* nod
case EvqAttribute: message = "can't modify an attribute"; break;
case EvqUniform: message = "can't modify a uniform"; break;
case EvqVaryingIn: message = "can't modify a varying"; break;
case EvqInstanceId: message = "can't modify gl_InstanceID"; break;
case EvqVertexId: message = "can't modify gl_VertexID"; break;
case EvqFace: message = "can't modify gl_FrontFace"; break;
case EvqFragCoord: message = "can't modify gl_FragCoord"; break;
case EvqPointCoord: message = "can't modify gl_PointCoord"; break;
@ -767,9 +717,10 @@ bool TParseContext::insertBuiltInArrayAtGlobalLevel()
{
TString *name = NewPoolTString("gl_TexCoord");
TSymbol* symbol = symbolTable.find(*name);
if (!symbol) {
error(0, "INTERNAL ERROR finding symbol", name->c_str(), "");
return true;
if (! symbol) {
// assume it was not added due to version/profile
return false;
}
TVariable* variable = symbol->getAsVariable();

7
glslang/MachineIndependent/ParseHelper.h
View File

@ -67,9 +67,9 @@ struct TPragma {
// they can be passed to the parser without needing a global.
//
struct TParseContext {
TParseContext(TSymbolTable& symt, TIntermediate& interm, EShLanguage L, TInfoSink& is, int defaultVersion);
TParseContext(TSymbolTable&, TIntermediate&, int version, EProfile, EShLanguage, TInfoSink&);
TIntermediate& intermediate; // to hold and build a parse tree
TSymbolTable& symbolTable; // symbol table that goes with the language currently being parsed
TSymbolTable& symbolTable; // symbol table that goes with the current language, version, and profile
TInfoSink& infoSink;
EShLanguage language; // vertex or fragment language
TIntermNode* treeRoot; // root of parse tree being created
@ -92,9 +92,6 @@ struct TParseContext {
TString HashErrMsg;
bool AfterEOF;
void setVersion(int);
void setProfile(EProfile);
void initializeExtensionBehavior();
void C_DECL error(TSourceLoc, const char *szReason, const char *szToken,

9
glslang/MachineIndependent/PoolAlloc.cpp
View File

@ -52,8 +52,7 @@ void InitializeGlobalPools()
threadData->globalPoolAllocator = globalPoolAllocator;
OS_SetTLSValue(PoolIndex, threadData);
globalPoolAllocator->push();
OS_SetTLSValue(PoolIndex, threadData);
}
void FreeGlobalPools()
@ -90,11 +89,11 @@ TPoolAllocator& GetGlobalPoolAllocator()
return *threadData->globalPoolAllocator;
}
void SetGlobalPoolAllocatorPtr(TPoolAllocator* poolAllocator)
void SetGlobalPoolAllocatorPtr(TPoolAllocator& poolAllocator)
{
TThreadGlobalPools* threadData = static_cast<TThreadGlobalPools*>(OS_GetTLSValue(PoolIndex));
threadData->globalPoolAllocator = poolAllocator;
threadData->globalPoolAllocator = &poolAllocator;
}
//
@ -143,6 +142,8 @@ TPoolAllocator::TPoolAllocator(bool g, int growthIncrement, int allocationAlignm
if (headerSkip < sizeof(tHeader)) {
headerSkip = (sizeof(tHeader) + alignmentMask) & ~alignmentMask;
}
push();
}
TPoolAllocator::~TPoolAllocator()

481
glslang/MachineIndependent/ShaderLang.cpp
View File

@ -1,5 +1,7 @@
//
//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
//Copyright (C) 2013 LunarG, Inc.
//
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
@ -35,7 +37,10 @@
//
// Implement the top-level of interface to the compiler/linker,
// as defined in ShaderLang.h
// This is the platform independent interface between an OGL driver
// and the shading language compiler/linker.
//
#include "SymbolTable.h"
#include "ParseHelper.h"
@ -45,61 +50,355 @@
#define SH_EXPORTING
#include "../Public/ShaderLang.h"
#include "Initialize.h"
namespace { // anonymous namespace for file-local functions and symbols
int MapVersionToIndex(int version)
{
switch(version) {
case 100: return 0;
case 110: return 1;
case 120: return 2;
case 130: return 3;
case 140: return 4;
case 150: return 5;
case 300: return 6;
case 330: return 7;
case 400: return 8;
case 410: return 9;
case 420: return 10;
case 430: return 11;
default: // |
return 0; // |
} // |
} // V
const int VersionCount = 12;
//
// A symbol table for each language. Each has a different
// set of built-ins, and we want to preserve that from
// A symbol table per version per profile per language. This will be sparsely
// populated, so they will only only be generated as needed.
//
// Each has a different set of built-ins, and we want to preserve that from
// compile to compile.
//
TSymbolTable SymbolTables[EShLangCount];
// TODO: thread safety: ensure the built-in symbol table levels are reado only.
TSymbolTable* SharedSymbolTables[VersionCount][EProfileCount][EShLangCount] = {};
TPoolAllocator* PerProcessGPA = 0;
//
// This is the platform independent interface between an OGL driver
// and the shading language compiler/linker.
//
bool InitializeSymbolTable(TBuiltInStrings* BuiltInStrings, int version, EProfile profile, EShLanguage language, TInfoSink& infoSink,
const TBuiltInResource* resources, TSymbolTable* symbolTables)
{
TIntermediate intermediate(infoSink);
TSymbolTable* symbolTable;
if (resources)
symbolTable = symbolTables;
else
symbolTable = &symbolTables[language];
TParseContext parseContext(*symbolTable, intermediate, version, profile, language, infoSink);
GlobalParseContext = &parseContext;
assert(symbolTable->isEmpty() || symbolTable->atSharedBuiltInLevel());
//
// Parse the built-ins. This should only happen once per
// language symbol table when no 'resources' are passed in.
//
// Push the symbol table to give it an initial scope. This
// push should not have a corresponding pop, so that built-ins
// are preserved, and the test for an empty table fails.
//
symbolTable->push();
//Initialize the Preprocessor
int ret = InitPreprocessor();
if (ret) {
infoSink.info.message(EPrefixInternalError, "Unable to intialize the Preprocessor");
return false;
}
ResetFlex();
for (TBuiltInStrings::iterator i = BuiltInStrings[parseContext.language].begin();
i != BuiltInStrings[parseContext.language].end(); ++i) {
const char* builtInShaders[1];
int builtInLengths[1];
builtInShaders[0] = (*i).c_str();
builtInLengths[0] = (int) (*i).size();
if (PaParseStrings(const_cast<char**>(builtInShaders), builtInLengths, 1, parseContext) != 0) {
infoSink.info.message(EPrefixInternalError, "Unable to parse built-ins");
return false;
}
}
FinalizePreprocessor();
if (resources) {
IdentifyBuiltIns(version, profile, parseContext.language, *symbolTable, *resources);
} else {
IdentifyBuiltIns(version, profile, parseContext.language, *symbolTable);
}
return true;
}
bool GenerateBuiltInSymbolTable(TInfoSink& infoSink, TSymbolTable* symbolTables, int version, EProfile profile)
{
TBuiltIns builtIns;
builtIns.initialize(version, profile);
InitializeSymbolTable(builtIns.getBuiltInStrings(), version, profile, EShLangVertex, infoSink, 0, symbolTables);
InitializeSymbolTable(builtIns.getBuiltInStrings(), version, profile, EShLangFragment, infoSink, 0, symbolTables);
return true;
}
bool AddContextSpecificSymbols(const TBuiltInResource* resources, TInfoSink& infoSink, TSymbolTable* symbolTables, int version, EProfile profile, EShLanguage language)
{
TBuiltIns builtIns;
builtIns.initialize(*resources, version, profile, language);
InitializeSymbolTable(builtIns.getBuiltInStrings(), version, profile, language, infoSink, resources, symbolTables);
return true;
}
//
// Driver must call this first, once, before doing any other
// compiler/linker operations.
//
int ShInitialize()
void SetupBuiltinSymbolTable(int version, EProfile profile)
{
TInfoSink infoSink;
bool ret = true;
if (!InitProcess())
return 0;
// This function is for lazy setup. See if already done.
int versionIndex = MapVersionToIndex(version);
if (SharedSymbolTables[versionIndex][profile][EShLangVertex])
return;
// This method should be called once per process. If its called by multiple threads, then
// we need to have thread synchronization code around the initialization of per process
// global pool allocator
if (!PerProcessGPA) {
TPoolAllocator *builtInPoolAllocator = new TPoolAllocator(true);
builtInPoolAllocator->push();
TPoolAllocator* gPoolAllocator = &GlobalPoolAllocator;
SetGlobalPoolAllocatorPtr(builtInPoolAllocator);
TPoolAllocator& savedGPA = GetGlobalPoolAllocator();
TPoolAllocator *builtInPoolAllocator = new TPoolAllocator(true);
SetGlobalPoolAllocatorPtr(*builtInPoolAllocator);
TSymbolTable symTables[EShLangCount];
GenerateBuiltInSymbolTable(0, infoSink, symTables);
TSymbolTable symTables[EShLangCount];
GenerateBuiltInSymbolTable(infoSink, symTables, version, profile);
PerProcessGPA = new TPoolAllocator(true);
PerProcessGPA->push();
SetGlobalPoolAllocatorPtr(PerProcessGPA);
SetGlobalPoolAllocatorPtr(*PerProcessGPA);
SymbolTables[EShLangVertex].copyTable(symTables[EShLangVertex]);
SymbolTables[EShLangFragment].copyTable(symTables[EShLangFragment]);
SharedSymbolTables[versionIndex][profile][EShLangVertex] = new TSymbolTable;
SharedSymbolTables[versionIndex][profile][EShLangVertex]->copyTable(symTables[EShLangVertex]);
SharedSymbolTables[versionIndex][profile][EShLangFragment] = new TSymbolTable;
SharedSymbolTables[versionIndex][profile][EShLangFragment]->copyTable(symTables[EShLangFragment]);
symTables[EShLangVertex].pop(0);
symTables[EShLangFragment].pop(0);
SetGlobalPoolAllocatorPtr(gPoolAllocator);
builtInPoolAllocator->popAll();
delete builtInPoolAllocator;
symTables[EShLangVertex].pop(0);
symTables[EShLangFragment].pop(0);
SetGlobalPoolAllocatorPtr(savedGPA);
}
builtInPoolAllocator->popAll();
delete builtInPoolAllocator;
// returns true if something whas consumed
bool ConsumeWhitespaceComment(const char*& s)
{
const char* startPoint = s;
// first, skip white space
while (*s == ' ' || *s == '\t' || *s == '\n' || *s == '\r') {
++s;
}
return ret ? 1 : 0;
// then, check for a comment
if (*s == '/') {
if (*(s+1) == '/') {
s += 2;
do {
while (*s && *s != '\\' && *s != '\n')
++s;
if (*s == '\n' || *s == 0) {
if (*s == '\n') {
++s;
if (*s == '\r')
++s;
} // else it's 0, end of string
// we reached the end of the comment
break;
} else {
// it's a '\', so we need to keep going, after skipping what's escaped
++s;
if (*s == '\n') {
++s;
if (*s == '\r')
++s;
} else {
// skip the escaped character
if (*s)
++s;
}
}
} while (true);
} else if (*(s+1) == '*') {
s += 2;
do {
while (*s && *s != '*')
++s;
if (*s == '*') {
++s;
if (*s == '/') {
++s;
break;
} // else not end of comment, keep going
} else // end of string
break;
} while (true);
} // else it's not a comment
} // else it's not a comment
return startPoint != s;
}
void ScanVersion(const char* const shaderStrings[], int numStrings, int& version, EProfile& profile)
{
// This function doesn't have to get all the semantics correct,
// just find the #version if there is a correct one present.
// The CPP will have the responsibility of getting all the semantics right.
version = 0; // means not found
profile = ENoProfile;
const char* s = &shaderStrings[0][0];
// TODO: ES error check: #version must be on first line
while (ConsumeWhitespaceComment(s))
;
// #
if (*s != '#')
return;
++s;
// whitespace
while (*s == ' ' || *s == '\t') {
++s;
}
// version
if (strncmp(s, "version", 7) != 0)
return;
// whitespace
s += 7;
while (*s == ' ' || *s == '\t') {
++s;
}
// version number
while (*s >= '0' && *s <= '9') {
version = 10 * version + (*s - '0');
++s;
}
if (version == 0)
return;
// whitespace
while (*s == ' ' || *s == '\t') {
++s;
}
// profile
const char* end = s;
while (*end != ' ' && *end != '\t' && *end != '\n') {
if (*end == 0)
return;
++end;
}
int profileLength = end - s;
if (profileLength == 2 && strncmp(s, "es", profileLength) == 0)
profile = EEsProfile;
else if (profileLength == 4 && strncmp(s, "core", profileLength) == 0)
profile = ECoreProfile;
else if (profileLength == 13 && strncmp(s, "compatibility", profileLength) == 0)
profile = ECompatibilityProfile;
}
bool DeduceProfile(TInfoSink& infoSink, int version, EProfile& profile)
{
const int FirstProfileVersion = 150;
if (profile == ENoProfile) {
if (version == 300) {
infoSink.info.message(EPrefixError, "#version: version 300 requires specifying the 'es' profile");
profile = EEsProfile;
return false;
} else if (version == 100)
profile = EEsProfile;
else if (version >= FirstProfileVersion)
profile = ECoreProfile;
else
profile = ENoProfile;
} else {
// a profile was provided...
if (version < 150) {
infoSink.info.message(EPrefixError, "#version: versions before 150 do not allow a profile token");
if (version == 100)
profile = EEsProfile;
else
profile = ENoProfile;
return false;
} else if (version == 300) {
if (profile != EEsProfile) {
infoSink.info.message(EPrefixError, "#version: version 300 supports only the es profile");
return false;
}
profile = EEsProfile;
} else {
if (profile == EEsProfile) {
infoSink.info.message(EPrefixError, "#version: only version 300 supports the es profile");
if (version >= FirstProfileVersion)
profile = ECoreProfile;
else
profile = ENoProfile;
return false;
}
// else: typical desktop case... e.g., "#version 410 core"
}
}
return true;
}
}; // end anonymous namespace for local functions
int ShInitialize()
{
if (! InitProcess())
return 0;
// TODO: Thread safety:
// This method should be called once per process. If it's called by multiple threads, then
// we need to have thread synchronization code around the initialization of per process
// global pool allocator
if (! PerProcessGPA) {
PerProcessGPA = new TPoolAllocator(true);
}
return true;
}
//
@ -156,88 +455,17 @@ void ShDestruct(ShHandle handle)
// Cleanup symbol tables
//
int __fastcall ShFinalize()
{
if (PerProcessGPA) {
PerProcessGPA->popAll();
delete PerProcessGPA;
}
return 1;
}
bool GenerateBuiltInSymbolTable(const TBuiltInResource* resources, TInfoSink& infoSink, TSymbolTable* symbolTables, EShLanguage language)
{
TBuiltIns builtIns;
if (resources) {
builtIns.initialize(*resources);
InitializeSymbolTable(builtIns.getBuiltInStrings(), language, infoSink, resources, symbolTables);
} else {
builtIns.initialize();
InitializeSymbolTable(builtIns.getBuiltInStrings(), EShLangVertex, infoSink, resources, symbolTables);
InitializeSymbolTable(builtIns.getBuiltInStrings(), EShLangFragment, infoSink, resources, symbolTables);
}
for (int version = 0; version < VersionCount; ++version)
for (int p = 0; p < EProfileCount; ++p)
for (int lang = 0; lang < EShLangCount; ++lang)
delete SharedSymbolTables[version][p][lang];
return true;
}
bool InitializeSymbolTable(TBuiltInStrings* BuiltInStrings, EShLanguage language, TInfoSink& infoSink, const TBuiltInResource* resources, TSymbolTable* symbolTables)
{
TIntermediate intermediate(infoSink);
TSymbolTable* symbolTable;
if (resources)
symbolTable = symbolTables;
else
symbolTable = &symbolTables[language];
TParseContext parseContext(*symbolTable, intermediate, language, infoSink, 110);
GlobalParseContext = &parseContext;
assert(symbolTable->isEmpty() || symbolTable->atSharedBuiltInLevel());
//
// Parse the built-ins. This should only happen once per
// language symbol table when no 'resources' are passed in.
//
// Push the symbol table to give it an initial scope. This
// push should not have a corresponding pop, so that built-ins
// are preserved, and the test for an empty table fails.
//
symbolTable->push();
//Initialize the Preprocessor
int ret = InitPreprocessor();
if (ret) {
infoSink.info.message(EPrefixInternalError, "Unable to intialize the Preprocessor");
return false;
if (PerProcessGPA) {
PerProcessGPA->popAll();
delete PerProcessGPA;
}
ResetFlex();
for (TBuiltInStrings::iterator i = BuiltInStrings[parseContext.language].begin();
i != BuiltInStrings[parseContext.language].end(); ++i) {
const char* builtInShaders[1];
int builtInLengths[1];
builtInShaders[0] = (*i).c_str();
builtInLengths[0] = (int) (*i).size();
if (PaParseStrings(const_cast<char**>(builtInShaders), builtInLengths, 1, parseContext) != 0) {
infoSink.info.message(EPrefixInternalError, "Unable to parse built-ins");
return false;
}
}
FinalizePreprocessor();
if (resources) {
IdentifyBuiltIns(parseContext.language, *symbolTable, *resources);
} else {
IdentifyBuiltIns(parseContext.language, *symbolTable);
}
return true;
return 1;
}
//
@ -262,12 +490,11 @@ int ShCompile(
if (handle == 0)
return 0;
TShHandleBase* base = reinterpret_cast<TShHandleBase*>(handle);
TCompiler* compiler = base->getAsCompiler();
if (compiler == 0)
return 0;
GlobalPoolAllocator.push();
compiler->infoSink.info.erase();
compiler->infoSink.debug.erase();
@ -275,14 +502,29 @@ int ShCompile(
if (numStrings == 0)
return 1;
int version;
EProfile profile;
ScanVersion(shaderStrings, numStrings, version, profile);
if (version == 0)
version = defaultVersion;
bool goodProfile = DeduceProfile(compiler->infoSink, version, profile);
TIntermediate intermediate(compiler->infoSink);
TSymbolTable symbolTable(SymbolTables[compiler->getLanguage()]);
SetupBuiltinSymbolTable(version, profile);
TSymbolTable symbolTable(*SharedSymbolTables[MapVersionToIndex(version)]
[profile]
[compiler->getLanguage()]);
// Add built-in symbols that are potentially context dependent;
// they get popped again further down.
GenerateBuiltInSymbolTable(resources, compiler->infoSink, &symbolTable, compiler->getLanguage());
AddContextSpecificSymbols(resources, compiler->infoSink, &symbolTable, version, profile, compiler->getLanguage());
TParseContext parseContext(symbolTable, intermediate, version, profile, compiler->getLanguage(), compiler->infoSink);
if (! goodProfile)
parseContext.error(1, "incorrect", "#version", "");
TParseContext parseContext(symbolTable, intermediate, compiler->getLanguage(), compiler->infoSink, defaultVersion);
parseContext.initializeExtensionBehavior();
GlobalParseContext = &parseContext;
@ -298,7 +540,7 @@ int ShCompile(
bool success = true;
symbolTable.push();
if (!symbolTable.atGlobalLevel())
if (! symbolTable.atGlobalLevel())
parseContext.infoSink.info.message(EPrefixInternalError, "Wrong symbol table level");
if (parseContext.insertBuiltInArrayAtGlobalLevel())
@ -326,7 +568,7 @@ int ShCompile(
success = false;
}
}
} else if (!success) {
} else if (! success) {
parseContext.infoSink.info.prefix(EPrefixError);
parseContext.infoSink.info << parseContext.numErrors << " compilation errors. No code generated.\n\n";
success = false;
@ -579,4 +821,3 @@ int ShGetUniformLocation(const ShHandle handle, const char* name)
return uniformMap->getLocation(name);
}

30
glslang/MachineIndependent/glslang.l
View File

@ -479,14 +479,14 @@ int PaParseStrings(char* argv[], int strLen[], int argc, TParseContext& parseCon
return 1;
for (int i = 0; i < argc; ++i) {
if (!argv[i]) {
if (! argv[i]) {
parseContextLocal.error(0, "Null shader source string", "", "");
parseContextLocal.recover();
return 1;
}
}
if (!strLen) {
if (! strLen) {
argv0len = (int) strlen(argv[0]);
strLen = &argv0len;
}
@ -499,7 +499,16 @@ int PaParseStrings(char* argv[], int strLen[], int argc, TParseContext& parseCon
cpp->notAVersionToken = 0;
yylineno = 1;
if (*cpp->PaStrLen >= 0) {
// TODO: CPP: a shader containing nothing but white space and comments is valid, even though it has no parse tokens
int len = 0;
while (argv[0][len] == ' ' ||
argv[0][len] == '\t' ||
argv[0][len] == '\n' ||
argv[0][len] == '\r')
if (++len >= strLen[0])
return 0;
if (*cpp->PaStrLen > 0) {
int ret;
#ifdef _WIN32
ret = yyparse(parseContextLocal);
@ -510,8 +519,7 @@ int PaParseStrings(char* argv[], int strLen[], int argc, TParseContext& parseCon
return 1;
else
return 0;
}
else
} else
return 0;
}
@ -838,14 +846,18 @@ void ResetTString(void)
void SetVersion(int version)
{
TParseContext& pc = *((TParseContext *)cpp->pC);
pc.setVersion(version);
// called by the CPP, but this functionality is currently
// taken over by ScanVersion() before parsing starts
// CPP should still report errors in semantics
}
void SetProfile(EProfile profile)
{
TParseContext& pc = *((TParseContext *)cpp->pC);
pc.setProfile(profile);
// called by the CPP, but this functionality is currently
// taken over by ScanVersion() before parsing starts
// CPP should still report errors in semantics
}
TBehavior GetBehavior(const char* behavior)

2
glslang/MachineIndependent/preprocessor/cpp.c
View File

@ -78,6 +78,8 @@ NVIDIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// cpp.c
//
// TODO: CPP handle escaped newlines in a // style comment, correctly done in ConsumeWhitespaceComment()
#define _CRT_SECURE_NO_WARNINGS
#include <stdarg.h>