David Gonzalez Martin be2de1d672 Render a texture
2024-11-10 08:48:46 -06:00

1984 lines
62 KiB
C++

//
// Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
// Copyright (C) 2013 LunarG, Inc.
// Copyright (C) 2017 ARM Limited.
// Copyright (C) 2020 Google, Inc.
// Modifications Copyright (C) 2020 Advanced Micro Devices, Inc. All rights reserved.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
//
// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
//
// GLSL scanning, leveraging the scanning done by the preprocessor.
//
#include <cstring>
#include <unordered_map>
#include <unordered_set>
#include "../Include/Types.h"
#include "SymbolTable.h"
#include "ParseHelper.h"
#include "attribute.h"
#include "glslang_tab.cpp.h"
#include "ScanContext.h"
#include "Scan.h"
// preprocessor includes
#include "preprocessor/PpContext.h"
#include "preprocessor/PpTokens.h"
// Required to avoid missing prototype warnings for some compilers
int yylex(YYSTYPE*, glslang::TParseContext&);
namespace glslang {
// read past any white space
void TInputScanner::consumeWhiteSpace(bool& foundNonSpaceTab)
{
int c = peek(); // don't accidentally consume anything other than whitespace
while (c == ' ' || c == '\t' || c == '\r' || c == '\n') {
if (c == '\r' || c == '\n')
foundNonSpaceTab = true;
get();
c = peek();
}
}
// return true if a comment was actually consumed
bool TInputScanner::consumeComment()
{
if (peek() != '/')
return false;
get(); // consume the '/'
int c = peek();
if (c == '/') {
// a '//' style comment
get(); // consume the second '/'
c = get();
do {
while (c != EndOfInput && c != '\\' && c != '\r' && c != '\n')
c = get();
if (c == EndOfInput || c == '\r' || c == '\n') {
while (c == '\r' || c == '\n')
c = get();
// we reached the end of the comment
break;
} else {
// it's a '\', so we need to keep going, after skipping what's escaped
// read the skipped character
c = get();
// if it's a two-character newline, skip both characters
if (c == '\r' && peek() == '\n')
get();
c = get();
}
} while (true);
// put back the last non-comment character
if (c != EndOfInput)
unget();
return true;
} else if (c == '*') {
// a '/*' style comment
get(); // consume the '*'
c = get();
do {
while (c != EndOfInput && c != '*')
c = get();
if (c == '*') {
c = get();
if (c == '/')
break; // end of comment
// not end of comment
} else // end of input
break;
} while (true);
return true;
} else {
// it's not a comment, put the '/' back
unget();
return false;
}
}
// skip whitespace, then skip a comment, rinse, repeat
void TInputScanner::consumeWhitespaceComment(bool& foundNonSpaceTab)
{
do {
consumeWhiteSpace(foundNonSpaceTab);
// if not starting a comment now, then done
int c = peek();
if (c != '/' || c == EndOfInput)
return;
// skip potential comment
foundNonSpaceTab = true;
if (! consumeComment())
return;
} while (true);
}
// Returns true if there was non-white space (e.g., a comment, newline) before the #version
// or no #version was found; otherwise, returns false. There is no error case, it always
// succeeds, but will leave version == 0 if no #version was found.
//
// Sets notFirstToken based on whether tokens (beyond white space and comments)
// appeared before the #version.
//
// N.B. does not attempt to leave input in any particular known state. The assumption
// is that scanning will start anew, following the rules for the chosen version/profile,
// and with a corresponding parsing context.
//
bool TInputScanner::scanVersion(int& version, EProfile& profile, bool& notFirstToken)
{
// This function doesn't have to get all the semantics correct,
// just find the #version if there is a correct one present.
// The preprocessor will have the responsibility of getting all the semantics right.
bool versionNotFirst = false; // means not first WRT comments and white space, nothing more
notFirstToken = false; // means not first WRT to real tokens
version = 0; // means not found
profile = ENoProfile;
bool foundNonSpaceTab = false;
bool lookingInMiddle = false;
int c;
do {
if (lookingInMiddle) {
notFirstToken = true;
// make forward progress by finishing off the current line plus extra new lines
if (peek() != '\n' && peek() != '\r') {
do {
c = get();
} while (c != EndOfInput && c != '\n' && c != '\r');
}
while (peek() == '\n' || peek() == '\r')
get();
if (peek() == EndOfInput)
return true;
}
lookingInMiddle = true;
// Nominal start, skipping the desktop allowed comments and white space, but tracking if
// something else was found for ES:
consumeWhitespaceComment(foundNonSpaceTab);
if (foundNonSpaceTab)
versionNotFirst = true;
// "#"
if (get() != '#') {
versionNotFirst = true;
continue;
}
// whitespace
do {
c = get();
} while (c == ' ' || c == '\t');
// "version"
if ( c != 'v' ||
get() != 'e' ||
get() != 'r' ||
get() != 's' ||
get() != 'i' ||
get() != 'o' ||
get() != 'n') {
versionNotFirst = true;
continue;
}
// whitespace
do {
c = get();
} while (c == ' ' || c == '\t');
// version number
while (c >= '0' && c <= '9') {
version = 10 * version + (c - '0');
c = get();
}
if (version == 0) {
versionNotFirst = true;
continue;
}
// whitespace
while (c == ' ' || c == '\t')
c = get();
// profile
const int maxProfileLength = 13; // not including any 0
char profileString[maxProfileLength];
int profileLength;
for (profileLength = 0; profileLength < maxProfileLength; ++profileLength) {
if (c == EndOfInput || c == ' ' || c == '\t' || c == '\n' || c == '\r')
break;
profileString[profileLength] = (char)c;
c = get();
}
if (c != EndOfInput && c != ' ' && c != '\t' && c != '\n' && c != '\r') {
versionNotFirst = true;
continue;
}
if (profileLength == 2 && strncmp(profileString, "es", profileLength) == 0)
profile = EEsProfile;
else if (profileLength == 4 && strncmp(profileString, "core", profileLength) == 0)
profile = ECoreProfile;
else if (profileLength == 13 && strncmp(profileString, "compatibility", profileLength) == 0)
profile = ECompatibilityProfile;
return versionNotFirst;
} while (true);
}
// Fill this in when doing glslang-level scanning, to hand back to the parser.
class TParserToken {
public:
explicit TParserToken(YYSTYPE& b) : sType(b) { }
YYSTYPE& sType;
protected:
TParserToken(TParserToken&);
TParserToken& operator=(TParserToken&);
};
} // end namespace glslang
// This is the function the glslang parser (i.e., bison) calls to get its next token
int yylex(YYSTYPE* glslangTokenDesc, glslang::TParseContext& parseContext)
{
glslang::TParserToken token(*glslangTokenDesc);
return parseContext.getScanContext()->tokenize(parseContext.getPpContext(), token);
}
namespace {
struct str_eq
{
bool operator()(const char* lhs, const char* rhs) const
{
return strcmp(lhs, rhs) == 0;
}
};
struct str_hash
{
size_t operator()(const char* str) const
{
// djb2
unsigned long hash = 5381;
int c;
while ((c = *str++) != 0)
hash = ((hash << 5) + hash) + c;
return hash;
}
};
// A single global usable by all threads, by all versions, by all languages.
const std::unordered_map<const char*, int, str_hash, str_eq> KeywordMap {
{"const",CONST},
{"uniform",UNIFORM},
{"tileImageEXT",TILEIMAGEEXT},
{"buffer",BUFFER},
{"in",IN},
{"out",OUT},
{"smooth",SMOOTH},
{"flat",FLAT},
{"centroid",CENTROID},
{"invariant",INVARIANT},
{"packed",PACKED},
{"resource",RESOURCE},
{"inout",INOUT},
{"struct",STRUCT},
{"break",BREAK},
{"continue",CONTINUE},
{"do",DO},
{"for",FOR},
{"while",WHILE},
{"switch",SWITCH},
{"case",CASE},
{"default",DEFAULT},
{"if",IF},
{"else",ELSE},
{"discard",DISCARD},
{"terminateInvocation",TERMINATE_INVOCATION},
{"terminateRayEXT",TERMINATE_RAY},
{"ignoreIntersectionEXT",IGNORE_INTERSECTION},
{"return",RETURN},
{"void",VOID},
{"bool",BOOL},
{"float",FLOAT},
{"int",INT},
{"bvec2",BVEC2},
{"bvec3",BVEC3},
{"bvec4",BVEC4},
{"vec2",VEC2},
{"vec3",VEC3},
{"vec4",VEC4},
{"ivec2",IVEC2},
{"ivec3",IVEC3},
{"ivec4",IVEC4},
{"mat2",MAT2},
{"mat3",MAT3},
{"mat4",MAT4},
{"true",BOOLCONSTANT},
{"false",BOOLCONSTANT},
{"layout",LAYOUT},
{"shared",SHARED},
{"highp",HIGH_PRECISION},
{"mediump",MEDIUM_PRECISION},
{"lowp",LOW_PRECISION},
{"superp",SUPERP},
{"precision",PRECISION},
{"mat2x2",MAT2X2},
{"mat2x3",MAT2X3},
{"mat2x4",MAT2X4},
{"mat3x2",MAT3X2},
{"mat3x3",MAT3X3},
{"mat3x4",MAT3X4},
{"mat4x2",MAT4X2},
{"mat4x3",MAT4X3},
{"mat4x4",MAT4X4},
{"uint",UINT},
{"uvec2",UVEC2},
{"uvec3",UVEC3},
{"uvec4",UVEC4},
{"nonuniformEXT",NONUNIFORM},
{"demote",DEMOTE},
{"attribute",ATTRIBUTE},
{"varying",VARYING},
{"noperspective",NOPERSPECTIVE},
{"coherent",COHERENT},
{"devicecoherent",DEVICECOHERENT},
{"queuefamilycoherent",QUEUEFAMILYCOHERENT},
{"workgroupcoherent",WORKGROUPCOHERENT},
{"subgroupcoherent",SUBGROUPCOHERENT},
{"shadercallcoherent",SHADERCALLCOHERENT},
{"nonprivate",NONPRIVATE},
{"restrict",RESTRICT},
{"readonly",READONLY},
{"writeonly",WRITEONLY},
{"atomic_uint",ATOMIC_UINT},
{"volatile",VOLATILE},
{"patch",PATCH},
{"sample",SAMPLE},
{"subroutine",SUBROUTINE},
{"dmat2",DMAT2},
{"dmat3",DMAT3},
{"dmat4",DMAT4},
{"dmat2x2",DMAT2X2},
{"dmat2x3",DMAT2X3},
{"dmat2x4",DMAT2X4},
{"dmat3x2",DMAT3X2},
{"dmat3x3",DMAT3X3},
{"dmat3x4",DMAT3X4},
{"dmat4x2",DMAT4X2},
{"dmat4x3",DMAT4X3},
{"dmat4x4",DMAT4X4},
{"image1D",IMAGE1D},
{"iimage1D",IIMAGE1D},
{"uimage1D",UIMAGE1D},
{"image2D",IMAGE2D},
{"iimage2D",IIMAGE2D},
{"uimage2D",UIMAGE2D},
{"image3D",IMAGE3D},
{"iimage3D",IIMAGE3D},
{"uimage3D",UIMAGE3D},
{"image2DRect",IMAGE2DRECT},
{"iimage2DRect",IIMAGE2DRECT},
{"uimage2DRect",UIMAGE2DRECT},
{"imageCube",IMAGECUBE},
{"iimageCube",IIMAGECUBE},
{"uimageCube",UIMAGECUBE},
{"imageBuffer",IMAGEBUFFER},
{"iimageBuffer",IIMAGEBUFFER},
{"uimageBuffer",UIMAGEBUFFER},
{"image1DArray",IMAGE1DARRAY},
{"iimage1DArray",IIMAGE1DARRAY},
{"uimage1DArray",UIMAGE1DARRAY},
{"image2DArray",IMAGE2DARRAY},
{"iimage2DArray",IIMAGE2DARRAY},
{"uimage2DArray",UIMAGE2DARRAY},
{"imageCubeArray",IMAGECUBEARRAY},
{"iimageCubeArray",IIMAGECUBEARRAY},
{"uimageCubeArray",UIMAGECUBEARRAY},
{"image2DMS",IMAGE2DMS},
{"iimage2DMS",IIMAGE2DMS},
{"uimage2DMS",UIMAGE2DMS},
{"image2DMSArray",IMAGE2DMSARRAY},
{"iimage2DMSArray",IIMAGE2DMSARRAY},
{"uimage2DMSArray",UIMAGE2DMSARRAY},
{"i64image1D",I64IMAGE1D},
{"u64image1D",U64IMAGE1D},
{"i64image2D",I64IMAGE2D},
{"u64image2D",U64IMAGE2D},
{"i64image3D",I64IMAGE3D},
{"u64image3D",U64IMAGE3D},
{"i64image2DRect",I64IMAGE2DRECT},
{"u64image2DRect",U64IMAGE2DRECT},
{"i64imageCube",I64IMAGECUBE},
{"u64imageCube",U64IMAGECUBE},
{"i64imageBuffer",I64IMAGEBUFFER},
{"u64imageBuffer",U64IMAGEBUFFER},
{"i64image1DArray",I64IMAGE1DARRAY},
{"u64image1DArray",U64IMAGE1DARRAY},
{"i64image2DArray",I64IMAGE2DARRAY},
{"u64image2DArray",U64IMAGE2DARRAY},
{"i64imageCubeArray",I64IMAGECUBEARRAY},
{"u64imageCubeArray",U64IMAGECUBEARRAY},
{"i64image2DMS",I64IMAGE2DMS},
{"u64image2DMS",U64IMAGE2DMS},
{"i64image2DMSArray",I64IMAGE2DMSARRAY},
{"u64image2DMSArray",U64IMAGE2DMSARRAY},
{"double",DOUBLE},
{"dvec2",DVEC2},
{"dvec3",DVEC3},
{"dvec4",DVEC4},
{"int64_t",INT64_T},
{"uint64_t",UINT64_T},
{"i64vec2",I64VEC2},
{"i64vec3",I64VEC3},
{"i64vec4",I64VEC4},
{"u64vec2",U64VEC2},
{"u64vec3",U64VEC3},
{"u64vec4",U64VEC4},
// GL_EXT_shader_explicit_arithmetic_types
{"int8_t",INT8_T},
{"i8vec2",I8VEC2},
{"i8vec3",I8VEC3},
{"i8vec4",I8VEC4},
{"uint8_t",UINT8_T},
{"u8vec2",U8VEC2},
{"u8vec3",U8VEC3},
{"u8vec4",U8VEC4},
{"int16_t",INT16_T},
{"i16vec2",I16VEC2},
{"i16vec3",I16VEC3},
{"i16vec4",I16VEC4},
{"uint16_t",UINT16_T},
{"u16vec2",U16VEC2},
{"u16vec3",U16VEC3},
{"u16vec4",U16VEC4},
{"int32_t",INT32_T},
{"i32vec2",I32VEC2},
{"i32vec3",I32VEC3},
{"i32vec4",I32VEC4},
{"uint32_t",UINT32_T},
{"u32vec2",U32VEC2},
{"u32vec3",U32VEC3},
{"u32vec4",U32VEC4},
{"float16_t",FLOAT16_T},
{"f16vec2",F16VEC2},
{"f16vec3",F16VEC3},
{"f16vec4",F16VEC4},
{"f16mat2",F16MAT2},
{"f16mat3",F16MAT3},
{"f16mat4",F16MAT4},
{"f16mat2x2",F16MAT2X2},
{"f16mat2x3",F16MAT2X3},
{"f16mat2x4",F16MAT2X4},
{"f16mat3x2",F16MAT3X2},
{"f16mat3x3",F16MAT3X3},
{"f16mat3x4",F16MAT3X4},
{"f16mat4x2",F16MAT4X2},
{"f16mat4x3",F16MAT4X3},
{"f16mat4x4",F16MAT4X4},
{"float32_t",FLOAT32_T},
{"f32vec2",F32VEC2},
{"f32vec3",F32VEC3},
{"f32vec4",F32VEC4},
{"f32mat2",F32MAT2},
{"f32mat3",F32MAT3},
{"f32mat4",F32MAT4},
{"f32mat2x2",F32MAT2X2},
{"f32mat2x3",F32MAT2X3},
{"f32mat2x4",F32MAT2X4},
{"f32mat3x2",F32MAT3X2},
{"f32mat3x3",F32MAT3X3},
{"f32mat3x4",F32MAT3X4},
{"f32mat4x2",F32MAT4X2},
{"f32mat4x3",F32MAT4X3},
{"f32mat4x4",F32MAT4X4},
{"float64_t",FLOAT64_T},
{"f64vec2",F64VEC2},
{"f64vec3",F64VEC3},
{"f64vec4",F64VEC4},
{"f64mat2",F64MAT2},
{"f64mat3",F64MAT3},
{"f64mat4",F64MAT4},
{"f64mat2x2",F64MAT2X2},
{"f64mat2x3",F64MAT2X3},
{"f64mat2x4",F64MAT2X4},
{"f64mat3x2",F64MAT3X2},
{"f64mat3x3",F64MAT3X3},
{"f64mat3x4",F64MAT3X4},
{"f64mat4x2",F64MAT4X2},
{"f64mat4x3",F64MAT4X3},
{"f64mat4x4",F64MAT4X4},
// GL_EXT_spirv_intrinsics
{"spirv_instruction",SPIRV_INSTRUCTION},
{"spirv_execution_mode",SPIRV_EXECUTION_MODE},
{"spirv_execution_mode_id",SPIRV_EXECUTION_MODE_ID},
{"spirv_decorate",SPIRV_DECORATE},
{"spirv_decorate_id",SPIRV_DECORATE_ID},
{"spirv_decorate_string",SPIRV_DECORATE_STRING},
{"spirv_type",SPIRV_TYPE},
{"spirv_storage_class",SPIRV_STORAGE_CLASS},
{"spirv_by_reference",SPIRV_BY_REFERENCE},
{"spirv_literal",SPIRV_LITERAL},
{"sampler2D",SAMPLER2D},
{"samplerCube",SAMPLERCUBE},
{"samplerCubeShadow",SAMPLERCUBESHADOW},
{"sampler2DArray",SAMPLER2DARRAY},
{"sampler2DArrayShadow",SAMPLER2DARRAYSHADOW},
{"isampler2D",ISAMPLER2D},
{"isampler3D",ISAMPLER3D},
{"isamplerCube",ISAMPLERCUBE},
{"isampler2DArray",ISAMPLER2DARRAY},
{"usampler2D",USAMPLER2D},
{"usampler3D",USAMPLER3D},
{"usamplerCube",USAMPLERCUBE},
{"usampler2DArray",USAMPLER2DARRAY},
{"sampler3D",SAMPLER3D},
{"sampler2DShadow",SAMPLER2DSHADOW},
{"texture2D",TEXTURE2D},
{"textureCube",TEXTURECUBE},
{"texture2DArray",TEXTURE2DARRAY},
{"itexture2D",ITEXTURE2D},
{"itexture3D",ITEXTURE3D},
{"itextureCube",ITEXTURECUBE},
{"itexture2DArray",ITEXTURE2DARRAY},
{"utexture2D",UTEXTURE2D},
{"utexture3D",UTEXTURE3D},
{"utextureCube",UTEXTURECUBE},
{"utexture2DArray",UTEXTURE2DARRAY},
{"texture3D",TEXTURE3D},
{"sampler",SAMPLER},
{"samplerShadow",SAMPLERSHADOW},
{"textureCubeArray",TEXTURECUBEARRAY},
{"itextureCubeArray",ITEXTURECUBEARRAY},
{"utextureCubeArray",UTEXTURECUBEARRAY},
{"samplerCubeArray",SAMPLERCUBEARRAY},
{"samplerCubeArrayShadow",SAMPLERCUBEARRAYSHADOW},
{"isamplerCubeArray",ISAMPLERCUBEARRAY},
{"usamplerCubeArray",USAMPLERCUBEARRAY},
{"sampler1DArrayShadow",SAMPLER1DARRAYSHADOW},
{"isampler1DArray",ISAMPLER1DARRAY},
{"usampler1D",USAMPLER1D},
{"isampler1D",ISAMPLER1D},
{"usampler1DArray",USAMPLER1DARRAY},
{"samplerBuffer",SAMPLERBUFFER},
{"isampler2DRect",ISAMPLER2DRECT},
{"usampler2DRect",USAMPLER2DRECT},
{"isamplerBuffer",ISAMPLERBUFFER},
{"usamplerBuffer",USAMPLERBUFFER},
{"sampler2DMS",SAMPLER2DMS},
{"isampler2DMS",ISAMPLER2DMS},
{"usampler2DMS",USAMPLER2DMS},
{"sampler2DMSArray",SAMPLER2DMSARRAY},
{"isampler2DMSArray",ISAMPLER2DMSARRAY},
{"usampler2DMSArray",USAMPLER2DMSARRAY},
{"sampler1D",SAMPLER1D},
{"sampler1DShadow",SAMPLER1DSHADOW},
{"sampler2DRect",SAMPLER2DRECT},
{"sampler2DRectShadow",SAMPLER2DRECTSHADOW},
{"sampler1DArray",SAMPLER1DARRAY},
{"samplerExternalOES", SAMPLEREXTERNALOES}, // GL_OES_EGL_image_external
{"__samplerExternal2DY2YEXT", SAMPLEREXTERNAL2DY2YEXT}, // GL_EXT_YUV_target
{"itexture1DArray",ITEXTURE1DARRAY},
{"utexture1D",UTEXTURE1D},
{"itexture1D",ITEXTURE1D},
{"utexture1DArray",UTEXTURE1DARRAY},
{"textureBuffer",TEXTUREBUFFER},
{"itexture2DRect",ITEXTURE2DRECT},
{"utexture2DRect",UTEXTURE2DRECT},
{"itextureBuffer",ITEXTUREBUFFER},
{"utextureBuffer",UTEXTUREBUFFER},
{"texture2DMS",TEXTURE2DMS},
{"itexture2DMS",ITEXTURE2DMS},
{"utexture2DMS",UTEXTURE2DMS},
{"texture2DMSArray",TEXTURE2DMSARRAY},
{"itexture2DMSArray",ITEXTURE2DMSARRAY},
{"utexture2DMSArray",UTEXTURE2DMSARRAY},
{"texture1D",TEXTURE1D},
{"texture2DRect",TEXTURE2DRECT},
{"texture1DArray",TEXTURE1DARRAY},
{"attachmentEXT",ATTACHMENTEXT},
{"iattachmentEXT",IATTACHMENTEXT},
{"uattachmentEXT",UATTACHMENTEXT},
{"subpassInput",SUBPASSINPUT},
{"subpassInputMS",SUBPASSINPUTMS},
{"isubpassInput",ISUBPASSINPUT},
{"isubpassInputMS",ISUBPASSINPUTMS},
{"usubpassInput",USUBPASSINPUT},
{"usubpassInputMS",USUBPASSINPUTMS},
{"f16sampler1D",F16SAMPLER1D},
{"f16sampler2D",F16SAMPLER2D},
{"f16sampler3D",F16SAMPLER3D},
{"f16sampler2DRect",F16SAMPLER2DRECT},
{"f16samplerCube",F16SAMPLERCUBE},
{"f16sampler1DArray",F16SAMPLER1DARRAY},
{"f16sampler2DArray",F16SAMPLER2DARRAY},
{"f16samplerCubeArray",F16SAMPLERCUBEARRAY},
{"f16samplerBuffer",F16SAMPLERBUFFER},
{"f16sampler2DMS",F16SAMPLER2DMS},
{"f16sampler2DMSArray",F16SAMPLER2DMSARRAY},
{"f16sampler1DShadow",F16SAMPLER1DSHADOW},
{"f16sampler2DShadow",F16SAMPLER2DSHADOW},
{"f16sampler2DRectShadow",F16SAMPLER2DRECTSHADOW},
{"f16samplerCubeShadow",F16SAMPLERCUBESHADOW},
{"f16sampler1DArrayShadow",F16SAMPLER1DARRAYSHADOW},
{"f16sampler2DArrayShadow",F16SAMPLER2DARRAYSHADOW},
{"f16samplerCubeArrayShadow",F16SAMPLERCUBEARRAYSHADOW},
{"f16image1D",F16IMAGE1D},
{"f16image2D",F16IMAGE2D},
{"f16image3D",F16IMAGE3D},
{"f16image2DRect",F16IMAGE2DRECT},
{"f16imageCube",F16IMAGECUBE},
{"f16image1DArray",F16IMAGE1DARRAY},
{"f16image2DArray",F16IMAGE2DARRAY},
{"f16imageCubeArray",F16IMAGECUBEARRAY},
{"f16imageBuffer",F16IMAGEBUFFER},
{"f16image2DMS",F16IMAGE2DMS},
{"f16image2DMSArray",F16IMAGE2DMSARRAY},
{"f16texture1D",F16TEXTURE1D},
{"f16texture2D",F16TEXTURE2D},
{"f16texture3D",F16TEXTURE3D},
{"f16texture2DRect",F16TEXTURE2DRECT},
{"f16textureCube",F16TEXTURECUBE},
{"f16texture1DArray",F16TEXTURE1DARRAY},
{"f16texture2DArray",F16TEXTURE2DARRAY},
{"f16textureCubeArray",F16TEXTURECUBEARRAY},
{"f16textureBuffer",F16TEXTUREBUFFER},
{"f16texture2DMS",F16TEXTURE2DMS},
{"f16texture2DMSArray",F16TEXTURE2DMSARRAY},
{"f16subpassInput",F16SUBPASSINPUT},
{"f16subpassInputMS",F16SUBPASSINPUTMS},
{"__explicitInterpAMD",EXPLICITINTERPAMD},
{"pervertexNV",PERVERTEXNV},
{"pervertexEXT",PERVERTEXEXT},
{"precise",PRECISE},
{"rayPayloadNV",PAYLOADNV},
{"rayPayloadEXT",PAYLOADEXT},
{"rayPayloadInNV",PAYLOADINNV},
{"rayPayloadInEXT",PAYLOADINEXT},
{"hitAttributeNV",HITATTRNV},
{"hitAttributeEXT",HITATTREXT},
{"callableDataNV",CALLDATANV},
{"callableDataEXT",CALLDATAEXT},
{"callableDataInNV",CALLDATAINNV},
{"callableDataInEXT",CALLDATAINEXT},
{"accelerationStructureNV",ACCSTRUCTNV},
{"accelerationStructureEXT",ACCSTRUCTEXT},
{"rayQueryEXT",RAYQUERYEXT},
{"perprimitiveNV",PERPRIMITIVENV},
{"perviewNV",PERVIEWNV},
{"taskNV",PERTASKNV},
{"perprimitiveEXT",PERPRIMITIVEEXT},
{"taskPayloadSharedEXT",TASKPAYLOADWORKGROUPEXT},
{"fcoopmatNV",FCOOPMATNV},
{"icoopmatNV",ICOOPMATNV},
{"ucoopmatNV",UCOOPMATNV},
{"coopmat",COOPMAT},
{"hitObjectNV",HITOBJECTNV},
{"hitObjectAttributeNV",HITOBJECTATTRNV},
};
const std::unordered_set<const char*, str_hash, str_eq> ReservedSet {
"common",
"partition",
"active",
"asm",
"class",
"union",
"enum",
"typedef",
"template",
"this",
"goto",
"inline",
"noinline",
"public",
"static",
"extern",
"external",
"interface",
"long",
"short",
"half",
"fixed",
"unsigned",
"input",
"output",
"hvec2",
"hvec3",
"hvec4",
"fvec2",
"fvec3",
"fvec4",
"sampler3DRect",
"filter",
"sizeof",
"cast",
"namespace",
"using",
};
}
namespace glslang {
// Called by yylex to get the next token.
// Returning 0 implies end of input.
int TScanContext::tokenize(TPpContext* pp, TParserToken& token)
{
do {
parserToken = &token;
TPpToken ppToken;
int token = pp->tokenize(ppToken);
if (token == EndOfInput)
return 0;
tokenText = ppToken.name;
loc = ppToken.loc;
parserToken->sType.lex.loc = loc;
switch (token) {
case ';': afterType = false; afterBuffer = false; return SEMICOLON;
case ',': afterType = false; return COMMA;
case ':': return COLON;
case '=': afterType = false; return EQUAL;
case '(': afterType = false; return LEFT_PAREN;
case ')': afterType = false; return RIGHT_PAREN;
case '.': field = true; return DOT;
case '!': return BANG;
case '-': return DASH;
case '~': return TILDE;
case '+': return PLUS;
case '*': return STAR;
case '/': return SLASH;
case '%': return PERCENT;
case '<': return LEFT_ANGLE;
case '>': return RIGHT_ANGLE;
case '|': return VERTICAL_BAR;
case '^': return CARET;
case '&': return AMPERSAND;
case '?': return QUESTION;
case '[': return LEFT_BRACKET;
case ']': return RIGHT_BRACKET;
case '{': afterStruct = false; afterBuffer = false; return LEFT_BRACE;
case '}': return RIGHT_BRACE;
case '\\':
parseContext.error(loc, "illegal use of escape character", "\\", "");
break;
case PPAtomAddAssign: return ADD_ASSIGN;
case PPAtomSubAssign: return SUB_ASSIGN;
case PPAtomMulAssign: return MUL_ASSIGN;
case PPAtomDivAssign: return DIV_ASSIGN;
case PPAtomModAssign: return MOD_ASSIGN;
case PpAtomRight: return RIGHT_OP;
case PpAtomLeft: return LEFT_OP;
case PpAtomRightAssign: return RIGHT_ASSIGN;
case PpAtomLeftAssign: return LEFT_ASSIGN;
case PpAtomAndAssign: return AND_ASSIGN;
case PpAtomOrAssign: return OR_ASSIGN;
case PpAtomXorAssign: return XOR_ASSIGN;
case PpAtomAnd: return AND_OP;
case PpAtomOr: return OR_OP;
case PpAtomXor: return XOR_OP;
case PpAtomEQ: return EQ_OP;
case PpAtomGE: return GE_OP;
case PpAtomNE: return NE_OP;
case PpAtomLE: return LE_OP;
case PpAtomDecrement: return DEC_OP;
case PpAtomIncrement: return INC_OP;
case PpAtomColonColon:
parseContext.error(loc, "not supported", "::", "");
break;
case PpAtomConstString: parserToken->sType.lex.string = NewPoolTString(tokenText); return STRING_LITERAL;
case PpAtomConstInt: parserToken->sType.lex.i = ppToken.ival; return INTCONSTANT;
case PpAtomConstUint: parserToken->sType.lex.i = ppToken.ival; return UINTCONSTANT;
case PpAtomConstFloat: parserToken->sType.lex.d = ppToken.dval; return FLOATCONSTANT;
case PpAtomConstInt16: parserToken->sType.lex.i = ppToken.ival; return INT16CONSTANT;
case PpAtomConstUint16: parserToken->sType.lex.i = ppToken.ival; return UINT16CONSTANT;
case PpAtomConstInt64: parserToken->sType.lex.i64 = ppToken.i64val; return INT64CONSTANT;
case PpAtomConstUint64: parserToken->sType.lex.i64 = ppToken.i64val; return UINT64CONSTANT;
case PpAtomConstDouble: parserToken->sType.lex.d = ppToken.dval; return DOUBLECONSTANT;
case PpAtomConstFloat16: parserToken->sType.lex.d = ppToken.dval; return FLOAT16CONSTANT;
case PpAtomIdentifier:
{
int token = tokenizeIdentifier();
field = false;
return token;
}
case EndOfInput: return 0;
default:
char buf[2];
buf[0] = (char)token;
buf[1] = 0;
parseContext.error(loc, "unexpected token", buf, "");
break;
}
} while (true);
}
int TScanContext::tokenizeIdentifier()
{
if (ReservedSet.find(tokenText) != ReservedSet.end())
return reservedWord();
auto it = KeywordMap.find(tokenText);
if (it == KeywordMap.end()) {
// Should have an identifier of some sort
return identifierOrType();
}
keyword = it->second;
switch (keyword) {
case CONST:
case UNIFORM:
case TILEIMAGEEXT:
case IN:
case OUT:
case INOUT:
case BREAK:
case CONTINUE:
case DO:
case FOR:
case WHILE:
case IF:
case ELSE:
case DISCARD:
case RETURN:
case CASE:
return keyword;
case TERMINATE_INVOCATION:
if (!parseContext.extensionTurnedOn(E_GL_EXT_terminate_invocation))
return identifierOrType();
return keyword;
case TERMINATE_RAY:
case IGNORE_INTERSECTION:
if (!parseContext.extensionTurnedOn(E_GL_EXT_ray_tracing))
return identifierOrType();
return keyword;
case BUFFER:
afterBuffer = true;
if ((parseContext.isEsProfile() && parseContext.version < 310) ||
(!parseContext.isEsProfile() && (parseContext.version < 430 &&
!parseContext.extensionTurnedOn(E_GL_ARB_shader_storage_buffer_object))))
return identifierOrType();
return keyword;
case STRUCT:
afterStruct = true;
return keyword;
case SWITCH:
case DEFAULT:
if ((parseContext.isEsProfile() && parseContext.version < 300) ||
(!parseContext.isEsProfile() && parseContext.version < 130))
reservedWord();
return keyword;
case VOID:
case BOOL:
case FLOAT:
case INT:
case BVEC2:
case BVEC3:
case BVEC4:
case VEC2:
case VEC3:
case VEC4:
case IVEC2:
case IVEC3:
case IVEC4:
case MAT2:
case MAT3:
case MAT4:
case SAMPLER2D:
case SAMPLERCUBE:
afterType = true;
return keyword;
case BOOLCONSTANT:
if (strcmp("true", tokenText) == 0)
parserToken->sType.lex.b = true;
else
parserToken->sType.lex.b = false;
return keyword;
case SMOOTH:
if ((parseContext.isEsProfile() && parseContext.version < 300) ||
(!parseContext.isEsProfile() && parseContext.version < 130))
return identifierOrType();
return keyword;
case FLAT:
if (parseContext.isEsProfile() && parseContext.version < 300)
reservedWord();
else if (!parseContext.isEsProfile() && parseContext.version < 130)
return identifierOrType();
return keyword;
case CENTROID:
if (parseContext.version < 120)
return identifierOrType();
return keyword;
case INVARIANT:
if (!parseContext.isEsProfile() && parseContext.version < 120)
return identifierOrType();
return keyword;
case PACKED:
if ((parseContext.isEsProfile() && parseContext.version < 300) ||
(!parseContext.isEsProfile() && parseContext.version < 140))
return reservedWord();
return identifierOrType();
case RESOURCE:
{
bool reserved = (parseContext.isEsProfile() && parseContext.version >= 300) ||
(!parseContext.isEsProfile() && parseContext.version >= 420);
return identifierOrReserved(reserved);
}
case SUPERP:
{
bool reserved = parseContext.isEsProfile() || parseContext.version >= 130;
return identifierOrReserved(reserved);
}
case NOPERSPECTIVE:
if (parseContext.extensionTurnedOn(E_GL_NV_shader_noperspective_interpolation))
return keyword;
return es30ReservedFromGLSL(130);
case NONUNIFORM:
if (parseContext.extensionTurnedOn(E_GL_EXT_nonuniform_qualifier))
return keyword;
else
return identifierOrType();
case ATTRIBUTE:
case VARYING:
if (parseContext.isEsProfile() && parseContext.version >= 300)
reservedWord();
return keyword;
case PAYLOADNV:
case PAYLOADINNV:
case HITATTRNV:
case CALLDATANV:
case CALLDATAINNV:
case ACCSTRUCTNV:
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_NV_ray_tracing))
return keyword;
return identifierOrType();
case ACCSTRUCTEXT:
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_EXT_ray_tracing) ||
parseContext.extensionTurnedOn(E_GL_EXT_ray_query) ||
parseContext.extensionTurnedOn(E_GL_NV_displacement_micromap))
return keyword;
return identifierOrType();
case PAYLOADEXT:
case PAYLOADINEXT:
case HITATTREXT:
case CALLDATAEXT:
case CALLDATAINEXT:
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_EXT_ray_tracing) ||
parseContext.extensionTurnedOn(E_GL_EXT_ray_query))
return keyword;
return identifierOrType();
case RAYQUERYEXT:
if (parseContext.symbolTable.atBuiltInLevel() ||
(!parseContext.isEsProfile() && parseContext.version >= 460
&& parseContext.extensionTurnedOn(E_GL_EXT_ray_query)))
return keyword;
return identifierOrType();
case ATOMIC_UINT:
if ((parseContext.isEsProfile() && parseContext.version >= 310) ||
parseContext.extensionTurnedOn(E_GL_ARB_shader_atomic_counters))
return keyword;
return es30ReservedFromGLSL(420);
case COHERENT:
case DEVICECOHERENT:
case QUEUEFAMILYCOHERENT:
case WORKGROUPCOHERENT:
case SUBGROUPCOHERENT:
case SHADERCALLCOHERENT:
case NONPRIVATE:
case RESTRICT:
case READONLY:
case WRITEONLY:
if (parseContext.isEsProfile() && parseContext.version >= 310)
return keyword;
return es30ReservedFromGLSL(parseContext.extensionTurnedOn(E_GL_ARB_shader_image_load_store) ? 130 : 420);
case VOLATILE:
if (parseContext.isEsProfile() && parseContext.version >= 310)
return keyword;
if (! parseContext.symbolTable.atBuiltInLevel() && (parseContext.isEsProfile() ||
(parseContext.version < 420 && ! parseContext.extensionTurnedOn(E_GL_ARB_shader_image_load_store))))
reservedWord();
return keyword;
case PATCH:
if (parseContext.symbolTable.atBuiltInLevel() ||
(parseContext.isEsProfile() &&
(parseContext.version >= 320 ||
parseContext.extensionsTurnedOn(Num_AEP_tessellation_shader, AEP_tessellation_shader))) ||
(!parseContext.isEsProfile() && parseContext.extensionTurnedOn(E_GL_ARB_tessellation_shader)))
return keyword;
return es30ReservedFromGLSL(400);
case SAMPLE:
if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
parseContext.extensionsTurnedOn(1, &E_GL_OES_shader_multisample_interpolation))
return keyword;
return es30ReservedFromGLSL(400);
case SUBROUTINE:
return es30ReservedFromGLSL(400);
case SHARED:
if ((parseContext.isEsProfile() && parseContext.version < 300) ||
(!parseContext.isEsProfile() && parseContext.version < 140))
return identifierOrType();
return keyword;
case LAYOUT:
{
const int numLayoutExts = 2;
const char* layoutExts[numLayoutExts] = { E_GL_ARB_shading_language_420pack,
E_GL_ARB_explicit_attrib_location };
if ((parseContext.isEsProfile() && parseContext.version < 300) ||
(!parseContext.isEsProfile() && parseContext.version < 140 &&
! parseContext.extensionsTurnedOn(numLayoutExts, layoutExts)))
return identifierOrType();
return keyword;
}
case HIGH_PRECISION:
case MEDIUM_PRECISION:
case LOW_PRECISION:
case PRECISION:
return precisionKeyword();
case MAT2X2:
case MAT2X3:
case MAT2X4:
case MAT3X2:
case MAT3X3:
case MAT3X4:
case MAT4X2:
case MAT4X3:
case MAT4X4:
return matNxM();
case DMAT2:
case DMAT3:
case DMAT4:
case DMAT2X2:
case DMAT2X3:
case DMAT2X4:
case DMAT3X2:
case DMAT3X3:
case DMAT3X4:
case DMAT4X2:
case DMAT4X3:
case DMAT4X4:
return dMat();
case IMAGE1D:
case IIMAGE1D:
case UIMAGE1D:
case IMAGE1DARRAY:
case IIMAGE1DARRAY:
case UIMAGE1DARRAY:
case IMAGE2DRECT:
case IIMAGE2DRECT:
case UIMAGE2DRECT:
afterType = true;
return firstGenerationImage(false);
case I64IMAGE1D:
case U64IMAGE1D:
case I64IMAGE1DARRAY:
case U64IMAGE1DARRAY:
case I64IMAGE2DRECT:
case U64IMAGE2DRECT:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_image_int64)) {
return firstGenerationImage(false);
}
return identifierOrType();
case IMAGEBUFFER:
case IIMAGEBUFFER:
case UIMAGEBUFFER:
afterType = true;
if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
parseContext.extensionsTurnedOn(Num_AEP_texture_buffer, AEP_texture_buffer))
return keyword;
return firstGenerationImage(false);
case I64IMAGEBUFFER:
case U64IMAGEBUFFER:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_image_int64)) {
if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
parseContext.extensionsTurnedOn(Num_AEP_texture_buffer, AEP_texture_buffer))
return keyword;
return firstGenerationImage(false);
}
return identifierOrType();
case IMAGE2D:
case IIMAGE2D:
case UIMAGE2D:
case IMAGE3D:
case IIMAGE3D:
case UIMAGE3D:
case IMAGECUBE:
case IIMAGECUBE:
case UIMAGECUBE:
case IMAGE2DARRAY:
case IIMAGE2DARRAY:
case UIMAGE2DARRAY:
afterType = true;
return firstGenerationImage(true);
case I64IMAGE2D:
case U64IMAGE2D:
case I64IMAGE3D:
case U64IMAGE3D:
case I64IMAGECUBE:
case U64IMAGECUBE:
case I64IMAGE2DARRAY:
case U64IMAGE2DARRAY:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_image_int64))
return firstGenerationImage(true);
return identifierOrType();
case IMAGECUBEARRAY:
case IIMAGECUBEARRAY:
case UIMAGECUBEARRAY:
afterType = true;
if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
parseContext.extensionsTurnedOn(Num_AEP_texture_cube_map_array, AEP_texture_cube_map_array))
return keyword;
return secondGenerationImage();
case I64IMAGECUBEARRAY:
case U64IMAGECUBEARRAY:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_image_int64)) {
if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
parseContext.extensionsTurnedOn(Num_AEP_texture_cube_map_array, AEP_texture_cube_map_array))
return keyword;
return secondGenerationImage();
}
return identifierOrType();
case IMAGE2DMS:
case IIMAGE2DMS:
case UIMAGE2DMS:
case IMAGE2DMSARRAY:
case IIMAGE2DMSARRAY:
case UIMAGE2DMSARRAY:
afterType = true;
return secondGenerationImage();
case I64IMAGE2DMS:
case U64IMAGE2DMS:
case I64IMAGE2DMSARRAY:
case U64IMAGE2DMSARRAY:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_image_int64)) {
return secondGenerationImage();
}
return identifierOrType();
case DOUBLE:
case DVEC2:
case DVEC3:
case DVEC4:
afterType = true;
if (parseContext.isEsProfile() || parseContext.version < 150 ||
(!parseContext.symbolTable.atBuiltInLevel() &&
(parseContext.version < 400 && !parseContext.extensionTurnedOn(E_GL_ARB_gpu_shader_fp64) &&
(parseContext.version < 410 && !parseContext.extensionTurnedOn(E_GL_ARB_vertex_attrib_64bit)))))
reservedWord();
return keyword;
case INT64_T:
case UINT64_T:
case I64VEC2:
case I64VEC3:
case I64VEC4:
case U64VEC2:
case U64VEC3:
case U64VEC4:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_ARB_gpu_shader_int64) ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_int64))
return keyword;
return identifierOrType();
case INT8_T:
case UINT8_T:
case I8VEC2:
case I8VEC3:
case I8VEC4:
case U8VEC2:
case U8VEC3:
case U8VEC4:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_8bit_storage) ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_int8))
return keyword;
return identifierOrType();
case INT16_T:
case UINT16_T:
case I16VEC2:
case I16VEC3:
case I16VEC4:
case U16VEC2:
case U16VEC3:
case U16VEC4:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_int16) ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_16bit_storage) ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_int16))
return keyword;
return identifierOrType();
case INT32_T:
case UINT32_T:
case I32VEC2:
case I32VEC3:
case I32VEC4:
case U32VEC2:
case U32VEC3:
case U32VEC4:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_int32))
return keyword;
return identifierOrType();
case FLOAT32_T:
case F32VEC2:
case F32VEC3:
case F32VEC4:
case F32MAT2:
case F32MAT3:
case F32MAT4:
case F32MAT2X2:
case F32MAT2X3:
case F32MAT2X4:
case F32MAT3X2:
case F32MAT3X3:
case F32MAT3X4:
case F32MAT4X2:
case F32MAT4X3:
case F32MAT4X4:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_float32))
return keyword;
return identifierOrType();
case FLOAT64_T:
case F64VEC2:
case F64VEC3:
case F64VEC4:
case F64MAT2:
case F64MAT3:
case F64MAT4:
case F64MAT2X2:
case F64MAT2X3:
case F64MAT2X4:
case F64MAT3X2:
case F64MAT3X3:
case F64MAT3X4:
case F64MAT4X2:
case F64MAT4X3:
case F64MAT4X4:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_float64))
return keyword;
return identifierOrType();
case FLOAT16_T:
case F16VEC2:
case F16VEC3:
case F16VEC4:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_half_float) ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_16bit_storage) ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_float16))
return keyword;
return identifierOrType();
case F16MAT2:
case F16MAT3:
case F16MAT4:
case F16MAT2X2:
case F16MAT2X3:
case F16MAT2X4:
case F16MAT3X2:
case F16MAT3X3:
case F16MAT3X4:
case F16MAT4X2:
case F16MAT4X3:
case F16MAT4X4:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_half_float) ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types) ||
parseContext.extensionTurnedOn(E_GL_EXT_shader_explicit_arithmetic_types_float16))
return keyword;
return identifierOrType();
case SAMPLERCUBEARRAY:
case SAMPLERCUBEARRAYSHADOW:
case ISAMPLERCUBEARRAY:
case USAMPLERCUBEARRAY:
afterType = true;
if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
parseContext.extensionsTurnedOn(Num_AEP_texture_cube_map_array, AEP_texture_cube_map_array))
return keyword;
if (parseContext.isEsProfile() || (parseContext.version < 400 && ! parseContext.extensionTurnedOn(E_GL_ARB_texture_cube_map_array)))
reservedWord();
return keyword;
case TEXTURECUBEARRAY:
case ITEXTURECUBEARRAY:
case UTEXTURECUBEARRAY:
if (parseContext.spvVersion.vulkan > 0)
return keyword;
else
return identifierOrType();
case UINT:
case UVEC2:
case UVEC3:
case UVEC4:
case SAMPLERCUBESHADOW:
case SAMPLER2DARRAY:
case SAMPLER2DARRAYSHADOW:
case ISAMPLER2D:
case ISAMPLER3D:
case ISAMPLERCUBE:
case ISAMPLER2DARRAY:
case USAMPLER2D:
case USAMPLER3D:
case USAMPLERCUBE:
case USAMPLER2DARRAY:
afterType = true;
if (keyword == SAMPLER2DARRAY || keyword == SAMPLER2DARRAYSHADOW) {
if (!parseContext.isEsProfile() &&
(parseContext.extensionTurnedOn(E_GL_EXT_texture_array) || parseContext.symbolTable.atBuiltInLevel())) {
return keyword;
}
}
return nonreservedKeyword(300, 130);
case SAMPLER3D:
afterType = true;
if (parseContext.isEsProfile() && parseContext.version < 300) {
if (!parseContext.extensionTurnedOn(E_GL_OES_texture_3D))
reservedWord();
}
return keyword;
case SAMPLER2DSHADOW:
afterType = true;
if (parseContext.isEsProfile() && parseContext.version < 300) {
if (!parseContext.extensionTurnedOn(E_GL_EXT_shadow_samplers))
reservedWord();
}
return keyword;
case TEXTURE2D:
case TEXTURECUBE:
case TEXTURE2DARRAY:
case ITEXTURE2D:
case ITEXTURE3D:
case ITEXTURECUBE:
case ITEXTURE2DARRAY:
case UTEXTURE2D:
case UTEXTURE3D:
case UTEXTURECUBE:
case UTEXTURE2DARRAY:
case TEXTURE3D:
case SAMPLER:
case SAMPLERSHADOW:
if (parseContext.spvVersion.vulkan > 0)
return keyword;
else
return identifierOrType();
case ISAMPLER1D:
case ISAMPLER1DARRAY:
case SAMPLER1DARRAYSHADOW:
case USAMPLER1D:
case USAMPLER1DARRAY:
afterType = true;
if (keyword == SAMPLER1DARRAYSHADOW) {
if (!parseContext.isEsProfile() &&
(parseContext.extensionTurnedOn(E_GL_EXT_texture_array) || parseContext.symbolTable.atBuiltInLevel())) {
return keyword;
}
}
return es30ReservedFromGLSL(130);
case ISAMPLER2DRECT:
case USAMPLER2DRECT:
afterType = true;
return es30ReservedFromGLSL(140);
case SAMPLERBUFFER:
afterType = true;
if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
parseContext.extensionsTurnedOn(Num_AEP_texture_buffer, AEP_texture_buffer))
return keyword;
return es30ReservedFromGLSL(130);
case ISAMPLERBUFFER:
case USAMPLERBUFFER:
afterType = true;
if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
parseContext.extensionsTurnedOn(Num_AEP_texture_buffer, AEP_texture_buffer))
return keyword;
return es30ReservedFromGLSL(140);
case SAMPLER2DMS:
case ISAMPLER2DMS:
case USAMPLER2DMS:
afterType = true;
if (parseContext.isEsProfile() && parseContext.version >= 310)
return keyword;
if (!parseContext.isEsProfile() && (parseContext.version > 140 ||
(parseContext.version == 140 && parseContext.extensionsTurnedOn(1, &E_GL_ARB_texture_multisample))))
return keyword;
return es30ReservedFromGLSL(150);
case SAMPLER2DMSARRAY:
case ISAMPLER2DMSARRAY:
case USAMPLER2DMSARRAY:
afterType = true;
if ((parseContext.isEsProfile() && parseContext.version >= 320) ||
parseContext.extensionsTurnedOn(1, &E_GL_OES_texture_storage_multisample_2d_array))
return keyword;
if (!parseContext.isEsProfile() && (parseContext.version > 140 ||
(parseContext.version == 140 && parseContext.extensionsTurnedOn(1, &E_GL_ARB_texture_multisample))))
return keyword;
return es30ReservedFromGLSL(150);
case SAMPLER1D:
case SAMPLER1DSHADOW:
afterType = true;
if (parseContext.isEsProfile())
reservedWord();
return keyword;
case SAMPLER2DRECT:
case SAMPLER2DRECTSHADOW:
afterType = true;
if (parseContext.isEsProfile())
reservedWord();
else if (parseContext.version < 140 && ! parseContext.symbolTable.atBuiltInLevel() && ! parseContext.extensionTurnedOn(E_GL_ARB_texture_rectangle)) {
if (parseContext.relaxedErrors())
parseContext.requireExtensions(loc, 1, &E_GL_ARB_texture_rectangle, "texture-rectangle sampler keyword");
else
reservedWord();
}
return keyword;
case SAMPLER1DARRAY:
afterType = true;
if (parseContext.isEsProfile() && parseContext.version == 300)
reservedWord();
else if ((parseContext.isEsProfile() && parseContext.version < 300) ||
((!parseContext.isEsProfile() && parseContext.version < 130) &&
!parseContext.symbolTable.atBuiltInLevel() &&
!parseContext.extensionTurnedOn(E_GL_EXT_texture_array)))
return identifierOrType();
return keyword;
case SAMPLEREXTERNALOES:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_OES_EGL_image_external) ||
parseContext.extensionTurnedOn(E_GL_OES_EGL_image_external_essl3))
return keyword;
return identifierOrType();
case SAMPLEREXTERNAL2DY2YEXT:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_EXT_YUV_target))
return keyword;
return identifierOrType();
case ITEXTURE1DARRAY:
case UTEXTURE1D:
case ITEXTURE1D:
case UTEXTURE1DARRAY:
case TEXTUREBUFFER:
case ITEXTURE2DRECT:
case UTEXTURE2DRECT:
case ITEXTUREBUFFER:
case UTEXTUREBUFFER:
case TEXTURE2DMS:
case ITEXTURE2DMS:
case UTEXTURE2DMS:
case TEXTURE2DMSARRAY:
case ITEXTURE2DMSARRAY:
case UTEXTURE2DMSARRAY:
case TEXTURE1D:
case TEXTURE2DRECT:
case TEXTURE1DARRAY:
if (parseContext.spvVersion.vulkan > 0)
return keyword;
else
return identifierOrType();
case SUBPASSINPUT:
case SUBPASSINPUTMS:
case ISUBPASSINPUT:
case ISUBPASSINPUTMS:
case USUBPASSINPUT:
case USUBPASSINPUTMS:
case ATTACHMENTEXT:
case IATTACHMENTEXT:
case UATTACHMENTEXT:
if (parseContext.spvVersion.vulkan > 0)
return keyword;
else
return identifierOrType();
case F16SAMPLER1D:
case F16SAMPLER2D:
case F16SAMPLER3D:
case F16SAMPLER2DRECT:
case F16SAMPLERCUBE:
case F16SAMPLER1DARRAY:
case F16SAMPLER2DARRAY:
case F16SAMPLERCUBEARRAY:
case F16SAMPLERBUFFER:
case F16SAMPLER2DMS:
case F16SAMPLER2DMSARRAY:
case F16SAMPLER1DSHADOW:
case F16SAMPLER2DSHADOW:
case F16SAMPLER1DARRAYSHADOW:
case F16SAMPLER2DARRAYSHADOW:
case F16SAMPLER2DRECTSHADOW:
case F16SAMPLERCUBESHADOW:
case F16SAMPLERCUBEARRAYSHADOW:
case F16IMAGE1D:
case F16IMAGE2D:
case F16IMAGE3D:
case F16IMAGE2DRECT:
case F16IMAGECUBE:
case F16IMAGE1DARRAY:
case F16IMAGE2DARRAY:
case F16IMAGECUBEARRAY:
case F16IMAGEBUFFER:
case F16IMAGE2DMS:
case F16IMAGE2DMSARRAY:
case F16TEXTURE1D:
case F16TEXTURE2D:
case F16TEXTURE3D:
case F16TEXTURE2DRECT:
case F16TEXTURECUBE:
case F16TEXTURE1DARRAY:
case F16TEXTURE2DARRAY:
case F16TEXTURECUBEARRAY:
case F16TEXTUREBUFFER:
case F16TEXTURE2DMS:
case F16TEXTURE2DMSARRAY:
case F16SUBPASSINPUT:
case F16SUBPASSINPUTMS:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_AMD_gpu_shader_half_float_fetch))
return keyword;
return identifierOrType();
case EXPLICITINTERPAMD:
if (parseContext.extensionTurnedOn(E_GL_AMD_shader_explicit_vertex_parameter))
return keyword;
return identifierOrType();
case PERVERTEXNV:
if ((!parseContext.isEsProfile() && parseContext.version >= 450) ||
parseContext.extensionTurnedOn(E_GL_NV_fragment_shader_barycentric))
return keyword;
return identifierOrType();
case PERVERTEXEXT:
if ((!parseContext.isEsProfile() && parseContext.version >= 450) ||
parseContext.extensionTurnedOn(E_GL_EXT_fragment_shader_barycentric))
return keyword;
return identifierOrType();
case PRECISE:
if ((parseContext.isEsProfile() &&
(parseContext.version >= 320 || parseContext.extensionsTurnedOn(Num_AEP_gpu_shader5, AEP_gpu_shader5))) ||
(!parseContext.isEsProfile() && parseContext.version >= 400))
return keyword;
if (parseContext.isEsProfile() && parseContext.version == 310) {
reservedWord();
return keyword;
}
return identifierOrType();
case PERPRIMITIVENV:
case PERVIEWNV:
case PERTASKNV:
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_NV_mesh_shader))
return keyword;
return identifierOrType();
case PERPRIMITIVEEXT:
case TASKPAYLOADWORKGROUPEXT:
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_EXT_mesh_shader))
return keyword;
return identifierOrType();
case FCOOPMATNV:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_NV_cooperative_matrix))
return keyword;
return identifierOrType();
case UCOOPMATNV:
case ICOOPMATNV:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_NV_integer_cooperative_matrix))
return keyword;
return identifierOrType();
case COOPMAT:
afterType = true;
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_KHR_cooperative_matrix))
return keyword;
return identifierOrType();
case DEMOTE:
if (parseContext.extensionTurnedOn(E_GL_EXT_demote_to_helper_invocation))
return keyword;
else
return identifierOrType();
case SPIRV_INSTRUCTION:
case SPIRV_EXECUTION_MODE:
case SPIRV_EXECUTION_MODE_ID:
case SPIRV_DECORATE:
case SPIRV_DECORATE_ID:
case SPIRV_DECORATE_STRING:
case SPIRV_TYPE:
case SPIRV_STORAGE_CLASS:
case SPIRV_BY_REFERENCE:
case SPIRV_LITERAL:
if (parseContext.symbolTable.atBuiltInLevel() ||
parseContext.extensionTurnedOn(E_GL_EXT_spirv_intrinsics))
return keyword;
return identifierOrType();
case HITOBJECTNV:
if (parseContext.symbolTable.atBuiltInLevel() ||
(!parseContext.isEsProfile() && parseContext.version >= 460
&& parseContext.extensionTurnedOn(E_GL_NV_shader_invocation_reorder)))
return keyword;
return identifierOrType();
case HITOBJECTATTRNV:
if (parseContext.symbolTable.atBuiltInLevel() ||
(!parseContext.isEsProfile() && parseContext.version >= 460
&& parseContext.extensionTurnedOn(E_GL_NV_shader_invocation_reorder)))
return keyword;
return identifierOrType();
default:
parseContext.infoSink.info.message(EPrefixInternalError, "Unknown glslang keyword", loc);
return 0;
}
}
int TScanContext::identifierOrType()
{
parserToken->sType.lex.string = NewPoolTString(tokenText);
if (field)
return IDENTIFIER;
parserToken->sType.lex.symbol = parseContext.symbolTable.find(*parserToken->sType.lex.string);
if ((afterType == false && afterStruct == false) && parserToken->sType.lex.symbol != nullptr) {
if (const TVariable* variable = parserToken->sType.lex.symbol->getAsVariable()) {
if (variable->isUserType() &&
// treat redeclaration of forward-declared buffer/uniform reference as an identifier
!(variable->getType().isReference() && afterBuffer)) {
afterType = true;
return TYPE_NAME;
}
}
}
return IDENTIFIER;
}
// Give an error for use of a reserved symbol.
// However, allow built-in declarations to use reserved words, to allow
// extension support before the extension is enabled.
int TScanContext::reservedWord()
{
if (! parseContext.symbolTable.atBuiltInLevel())
parseContext.error(loc, "Reserved word.", tokenText, "", "");
return 0;
}
int TScanContext::identifierOrReserved(bool reserved)
{
if (reserved) {
reservedWord();
return 0;
}
if (parseContext.isForwardCompatible())
parseContext.warn(loc, "using future reserved keyword", tokenText, "");
return identifierOrType();
}
// For keywords that suddenly showed up on non-ES (not previously reserved)
// but then got reserved by ES 3.0.
int TScanContext::es30ReservedFromGLSL(int version)
{
if (parseContext.symbolTable.atBuiltInLevel())
return keyword;
if ((parseContext.isEsProfile() && parseContext.version < 300) ||
(!parseContext.isEsProfile() && parseContext.version < version)) {
if (parseContext.isForwardCompatible())
parseContext.warn(loc, "future reserved word in ES 300 and keyword in GLSL", tokenText, "");
return identifierOrType();
} else if (parseContext.isEsProfile() && parseContext.version >= 300)
reservedWord();
return keyword;
}
// For a keyword that was never reserved, until it suddenly
// showed up, both in an es version and a non-ES version.
int TScanContext::nonreservedKeyword(int esVersion, int nonEsVersion)
{
if ((parseContext.isEsProfile() && parseContext.version < esVersion) ||
(!parseContext.isEsProfile() && parseContext.version < nonEsVersion)) {
if (parseContext.isForwardCompatible())
parseContext.warn(loc, "using future keyword", tokenText, "");
return identifierOrType();
}
return keyword;
}
int TScanContext::precisionKeyword()
{
if (parseContext.isEsProfile() || parseContext.version >= 130)
return keyword;
if (parseContext.isForwardCompatible())
parseContext.warn(loc, "using ES precision qualifier keyword", tokenText, "");
return identifierOrType();
}
int TScanContext::matNxM()
{
afterType = true;
if (parseContext.version > 110)
return keyword;
if (parseContext.isForwardCompatible())
parseContext.warn(loc, "using future non-square matrix type keyword", tokenText, "");
return identifierOrType();
}
int TScanContext::dMat()
{
afterType = true;
if (parseContext.isEsProfile() && parseContext.version >= 300) {
reservedWord();
return keyword;
}
if (!parseContext.isEsProfile() && (parseContext.version >= 400 ||
parseContext.symbolTable.atBuiltInLevel() ||
(parseContext.version >= 150 && parseContext.extensionTurnedOn(E_GL_ARB_gpu_shader_fp64)) ||
(parseContext.version >= 150 && parseContext.extensionTurnedOn(E_GL_ARB_vertex_attrib_64bit)
&& parseContext.language == EShLangVertex)))
return keyword;
if (parseContext.isForwardCompatible())
parseContext.warn(loc, "using future type keyword", tokenText, "");
return identifierOrType();
}
int TScanContext::firstGenerationImage(bool inEs310)
{
if (parseContext.symbolTable.atBuiltInLevel() ||
(!parseContext.isEsProfile() && (parseContext.version >= 420 ||
parseContext.extensionTurnedOn(E_GL_ARB_shader_image_load_store))) ||
(inEs310 && parseContext.isEsProfile() && parseContext.version >= 310))
return keyword;
if ((parseContext.isEsProfile() && parseContext.version >= 300) ||
(!parseContext.isEsProfile() && parseContext.version >= 130)) {
reservedWord();
return keyword;
}
if (parseContext.isForwardCompatible())
parseContext.warn(loc, "using future type keyword", tokenText, "");
return identifierOrType();
}
int TScanContext::secondGenerationImage()
{
if (parseContext.isEsProfile() && parseContext.version >= 310) {
reservedWord();
return keyword;
}
if (parseContext.symbolTable.atBuiltInLevel() ||
(!parseContext.isEsProfile() &&
(parseContext.version >= 420 || parseContext.extensionTurnedOn(E_GL_ARB_shader_image_load_store))))
return keyword;
if (parseContext.isForwardCompatible())
parseContext.warn(loc, "using future type keyword", tokenText, "");
return identifierOrType();
}
} // end namespace glslang