1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/angle/src/compiler/glslang.l Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,331 @@
1.4 +/*
1.5 +//
1.6 +// Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved.
1.7 +// Use of this source code is governed by a BSD-style license that can be
1.8 +// found in the LICENSE file.
1.9 +//
1.10 +
1.11 +This file contains the Lex specification for GLSL ES.
1.12 +Based on ANSI C grammar, Lex specification:
1.13 +http://www.lysator.liu.se/c/ANSI-C-grammar-l.html
1.14 +
1.15 +IF YOU MODIFY THIS FILE YOU ALSO NEED TO RUN generate_parser.sh,
1.16 +WHICH GENERATES THE GLSL ES LEXER (glslang_lex.cpp).
1.17 +*/
1.18 +
1.19 +%top{
1.20 +//
1.21 +// Copyright (c) 2012 The ANGLE Project Authors. All rights reserved.
1.22 +// Use of this source code is governed by a BSD-style license that can be
1.23 +// found in the LICENSE file.
1.24 +//
1.25 +
1.26 +// This file is auto-generated by generate_parser.sh. DO NOT EDIT!
1.27 +
1.28 +// Ignore errors in auto-generated code.
1.29 +#if defined(__GNUC__)
1.30 +#pragma GCC diagnostic ignored "-Wunused-function"
1.31 +#pragma GCC diagnostic ignored "-Wunused-variable"
1.32 +#pragma GCC diagnostic ignored "-Wswitch-enum"
1.33 +#elif defined(_MSC_VER)
1.34 +#pragma warning(disable: 4065)
1.35 +#pragma warning(disable: 4189)
1.36 +#pragma warning(disable: 4505)
1.37 +#pragma warning(disable: 4701)
1.38 +#endif
1.39 +}
1.40 +
1.41 +%{
1.42 +#include "compiler/glslang.h"
1.43 +#include "compiler/ParseHelper.h"
1.44 +#include "compiler/preprocessor/Token.h"
1.45 +#include "compiler/util.h"
1.46 +#include "glslang_tab.h"
1.47 +
1.48 +/* windows only pragma */
1.49 +#ifdef _MSC_VER
1.50 +#pragma warning(disable : 4102)
1.51 +#endif
1.52 +
1.53 +#define YY_USER_ACTION \
1.54 + yylloc->first_file = yylloc->last_file = yycolumn; \
1.55 + yylloc->first_line = yylloc->last_line = yylineno;
1.56 +
1.57 +#define YY_INPUT(buf, result, max_size) \
1.58 + result = string_input(buf, max_size, yyscanner);
1.59 +
1.60 +static yy_size_t string_input(char* buf, yy_size_t max_size, yyscan_t yyscanner);
1.61 +static int check_type(yyscan_t yyscanner);
1.62 +static int reserved_word(yyscan_t yyscanner);
1.63 +%}
1.64 +
1.65 +%option noyywrap nounput never-interactive
1.66 +%option yylineno reentrant bison-bridge bison-locations
1.67 +%option extra-type="TParseContext*"
1.68 +
1.69 +D [0-9]
1.70 +L [a-zA-Z_]
1.71 +H [a-fA-F0-9]
1.72 +E [Ee][+-]?{D}+
1.73 +O [0-7]
1.74 +
1.75 +%%
1.76 +
1.77 +"invariant" { return INVARIANT; }
1.78 +"highp" { return HIGH_PRECISION; }
1.79 +"mediump" { return MEDIUM_PRECISION; }
1.80 +"lowp" { return LOW_PRECISION; }
1.81 +"precision" { return PRECISION; }
1.82 +
1.83 +"attribute" { return ATTRIBUTE; }
1.84 +"const" { return CONST_QUAL; }
1.85 +"uniform" { return UNIFORM; }
1.86 +"varying" { return VARYING; }
1.87 +
1.88 +"break" { return BREAK; }
1.89 +"continue" { return CONTINUE; }
1.90 +"do" { return DO; }
1.91 +"for" { return FOR; }
1.92 +"while" { return WHILE; }
1.93 +
1.94 +"if" { return IF; }
1.95 +"else" { return ELSE; }
1.96 +
1.97 +"in" { return IN_QUAL; }
1.98 +"out" { return OUT_QUAL; }
1.99 +"inout" { return INOUT_QUAL; }
1.100 +
1.101 +"float" { return FLOAT_TYPE; }
1.102 +"int" { return INT_TYPE; }
1.103 +"void" { return VOID_TYPE; }
1.104 +"bool" { return BOOL_TYPE; }
1.105 +"true" { yylval->lex.b = true; return BOOLCONSTANT; }
1.106 +"false" { yylval->lex.b = false; return BOOLCONSTANT; }
1.107 +
1.108 +"discard" { return DISCARD; }
1.109 +"return" { return RETURN; }
1.110 +
1.111 +"mat2" { return MATRIX2; }
1.112 +"mat3" { return MATRIX3; }
1.113 +"mat4" { return MATRIX4; }
1.114 +
1.115 +"vec2" { return VEC2; }
1.116 +"vec3" { return VEC3; }
1.117 +"vec4" { return VEC4; }
1.118 +"ivec2" { return IVEC2; }
1.119 +"ivec3" { return IVEC3; }
1.120 +"ivec4" { return IVEC4; }
1.121 +"bvec2" { return BVEC2; }
1.122 +"bvec3" { return BVEC3; }
1.123 +"bvec4" { return BVEC4; }
1.124 +
1.125 +"sampler2D" { return SAMPLER2D; }
1.126 +"samplerCube" { return SAMPLERCUBE; }
1.127 +"samplerExternalOES" { return SAMPLER_EXTERNAL_OES; }
1.128 +"sampler2DRect" { return SAMPLER2DRECT; }
1.129 +
1.130 +"struct" { return STRUCT; }
1.131 +
1.132 +"asm" { return reserved_word(yyscanner); }
1.133 +
1.134 +"class" { return reserved_word(yyscanner); }
1.135 +"union" { return reserved_word(yyscanner); }
1.136 +"enum" { return reserved_word(yyscanner); }
1.137 +"typedef" { return reserved_word(yyscanner); }
1.138 +"template" { return reserved_word(yyscanner); }
1.139 +"this" { return reserved_word(yyscanner); }
1.140 +"packed" { return reserved_word(yyscanner); }
1.141 +
1.142 +"goto" { return reserved_word(yyscanner); }
1.143 +"switch" { return reserved_word(yyscanner); }
1.144 +"default" { return reserved_word(yyscanner); }
1.145 +
1.146 +"inline" { return reserved_word(yyscanner); }
1.147 +"noinline" { return reserved_word(yyscanner); }
1.148 +"volatile" { return reserved_word(yyscanner); }
1.149 +"public" { return reserved_word(yyscanner); }
1.150 +"static" { return reserved_word(yyscanner); }
1.151 +"extern" { return reserved_word(yyscanner); }
1.152 +"external" { return reserved_word(yyscanner); }
1.153 +"interface" { return reserved_word(yyscanner); }
1.154 +"flat" { return reserved_word(yyscanner); }
1.155 +
1.156 +"long" { return reserved_word(yyscanner); }
1.157 +"short" { return reserved_word(yyscanner); }
1.158 +"double" { return reserved_word(yyscanner); }
1.159 +"half" { return reserved_word(yyscanner); }
1.160 +"fixed" { return reserved_word(yyscanner); }
1.161 +"unsigned" { return reserved_word(yyscanner); }
1.162 +"superp" { return reserved_word(yyscanner); }
1.163 +
1.164 +"input" { return reserved_word(yyscanner); }
1.165 +"output" { return reserved_word(yyscanner); }
1.166 +
1.167 +"hvec2" { return reserved_word(yyscanner); }
1.168 +"hvec3" { return reserved_word(yyscanner); }
1.169 +"hvec4" { return reserved_word(yyscanner); }
1.170 +"dvec2" { return reserved_word(yyscanner); }
1.171 +"dvec3" { return reserved_word(yyscanner); }
1.172 +"dvec4" { return reserved_word(yyscanner); }
1.173 +"fvec2" { return reserved_word(yyscanner); }
1.174 +"fvec3" { return reserved_word(yyscanner); }
1.175 +"fvec4" { return reserved_word(yyscanner); }
1.176 +
1.177 +"sampler1D" { return reserved_word(yyscanner); }
1.178 +"sampler3D" { return reserved_word(yyscanner); }
1.179 +"sampler1DShadow" { return reserved_word(yyscanner); }
1.180 +"sampler2DShadow" { return reserved_word(yyscanner); }
1.181 +"sampler3DRect" { return reserved_word(yyscanner); }
1.182 +"sampler2DRectShadow" { return reserved_word(yyscanner); }
1.183 +
1.184 +"sizeof" { return reserved_word(yyscanner); }
1.185 +"cast" { return reserved_word(yyscanner); }
1.186 +
1.187 +"namespace" { return reserved_word(yyscanner); }
1.188 +"using" { return reserved_word(yyscanner); }
1.189 +
1.190 +{L}({L}|{D})* {
1.191 + yylval->lex.string = NewPoolTString(yytext);
1.192 + return check_type(yyscanner);
1.193 +}
1.194 +
1.195 +0[xX]{H}+ { yylval->lex.i = static_cast<int>(strtol(yytext, 0, 0)); return INTCONSTANT; }
1.196 +0{O}+ { yylval->lex.i = static_cast<int>(strtol(yytext, 0, 0)); return INTCONSTANT; }
1.197 +{D}+ { yylval->lex.i = static_cast<int>(strtol(yytext, 0, 0)); return INTCONSTANT; }
1.198 +
1.199 +{D}+{E} { yylval->lex.f = static_cast<float>(atof_dot(yytext)); return FLOATCONSTANT; }
1.200 +{D}+"."{D}*({E})? { yylval->lex.f = static_cast<float>(atof_dot(yytext)); return FLOATCONSTANT; }
1.201 +"."{D}+({E})? { yylval->lex.f = static_cast<float>(atof_dot(yytext)); return FLOATCONSTANT; }
1.202 +
1.203 +"+=" { return ADD_ASSIGN; }
1.204 +"-=" { return SUB_ASSIGN; }
1.205 +"*=" { return MUL_ASSIGN; }
1.206 +"/=" { return DIV_ASSIGN; }
1.207 +"%=" { return MOD_ASSIGN; }
1.208 +"<<=" { return LEFT_ASSIGN; }
1.209 +">>=" { return RIGHT_ASSIGN; }
1.210 +"&=" { return AND_ASSIGN; }
1.211 +"^=" { return XOR_ASSIGN; }
1.212 +"|=" { return OR_ASSIGN; }
1.213 +
1.214 +"++" { return INC_OP; }
1.215 +"--" { return DEC_OP; }
1.216 +"&&" { return AND_OP; }
1.217 +"||" { return OR_OP; }
1.218 +"^^" { return XOR_OP; }
1.219 +"<=" { return LE_OP; }
1.220 +">=" { return GE_OP; }
1.221 +"==" { return EQ_OP; }
1.222 +"!=" { return NE_OP; }
1.223 +"<<" { return LEFT_OP; }
1.224 +">>" { return RIGHT_OP; }
1.225 +";" { return SEMICOLON; }
1.226 +("{"|"<%") { return LEFT_BRACE; }
1.227 +("}"|"%>") { return RIGHT_BRACE; }
1.228 +"," { return COMMA; }
1.229 +":" { return COLON; }
1.230 +"=" { return EQUAL; }
1.231 +"(" { return LEFT_PAREN; }
1.232 +")" { return RIGHT_PAREN; }
1.233 +("["|"<:") { return LEFT_BRACKET; }
1.234 +("]"|":>") { return RIGHT_BRACKET; }
1.235 +"." { return DOT; }
1.236 +"!" { return BANG; }
1.237 +"-" { return DASH; }
1.238 +"~" { return TILDE; }
1.239 +"+" { return PLUS; }
1.240 +"*" { return STAR; }
1.241 +"/" { return SLASH; }
1.242 +"%" { return PERCENT; }
1.243 +"<" { return LEFT_ANGLE; }
1.244 +">" { return RIGHT_ANGLE; }
1.245 +"|" { return VERTICAL_BAR; }
1.246 +"^" { return CARET; }
1.247 +"&" { return AMPERSAND; }
1.248 +"?" { return QUESTION; }
1.249 +
1.250 +[ \t\v\n\f\r] { }
1.251 +<<EOF>> { yyterminate(); }
1.252 +. { assert(false); return 0; }
1.253 +
1.254 +%%
1.255 +
1.256 +yy_size_t string_input(char* buf, yy_size_t max_size, yyscan_t yyscanner) {
1.257 + pp::Token token;
1.258 + yyget_extra(yyscanner)->preprocessor.lex(&token);
1.259 + yy_size_t len = token.type == pp::Token::LAST ? 0 : token.text.size();
1.260 + if (len < max_size)
1.261 + memcpy(buf, token.text.c_str(), len);
1.262 + yyset_column(token.location.file, yyscanner);
1.263 + yyset_lineno(token.location.line, yyscanner);
1.264 +
1.265 + if (len >= max_size)
1.266 + YY_FATAL_ERROR("Input buffer overflow");
1.267 + else if (len > 0)
1.268 + buf[len++] = ' ';
1.269 + return len;
1.270 +}
1.271 +
1.272 +int check_type(yyscan_t yyscanner) {
1.273 + struct yyguts_t* yyg = (struct yyguts_t*) yyscanner;
1.274 +
1.275 + int token = IDENTIFIER;
1.276 + TSymbol* symbol = yyextra->symbolTable.find(yytext);
1.277 + if (symbol && symbol->isVariable()) {
1.278 + TVariable* variable = static_cast<TVariable*>(symbol);
1.279 + if (variable->isUserType())
1.280 + token = TYPE_NAME;
1.281 + }
1.282 + yylval->lex.symbol = symbol;
1.283 + return token;
1.284 +}
1.285 +
1.286 +int reserved_word(yyscan_t yyscanner) {
1.287 + struct yyguts_t* yyg = (struct yyguts_t*) yyscanner;
1.288 +
1.289 + yyextra->error(*yylloc, "Illegal use of reserved word", yytext, "");
1.290 + yyextra->recover();
1.291 + return 0;
1.292 +}
1.293 +
1.294 +int glslang_initialize(TParseContext* context) {
1.295 + yyscan_t scanner = NULL;
1.296 + if (yylex_init_extra(context, &scanner))
1.297 + return 1;
1.298 +
1.299 + context->scanner = scanner;
1.300 + return 0;
1.301 +}
1.302 +
1.303 +int glslang_finalize(TParseContext* context) {
1.304 + yyscan_t scanner = context->scanner;
1.305 + if (scanner == NULL) return 0;
1.306 +
1.307 + context->scanner = NULL;
1.308 + yylex_destroy(scanner);
1.309 +
1.310 + return 0;
1.311 +}
1.312 +
1.313 +int glslang_scan(size_t count, const char* const string[], const int length[],
1.314 + TParseContext* context) {
1.315 + yyrestart(NULL, context->scanner);
1.316 + yyset_column(0, context->scanner);
1.317 + yyset_lineno(1, context->scanner);
1.318 +
1.319 + // Initialize preprocessor.
1.320 + if (!context->preprocessor.init(count, string, length))
1.321 + return 1;
1.322 +
1.323 + // Define extension macros.
1.324 + const TExtensionBehavior& extBehavior = context->extensionBehavior();
1.325 + for (TExtensionBehavior::const_iterator iter = extBehavior.begin();
1.326 + iter != extBehavior.end(); ++iter) {
1.327 + context->preprocessor.predefineMacro(iter->first.c_str(), 1);
1.328 + }
1.329 + if (context->fragmentPrecisionHigh)
1.330 + context->preprocessor.predefineMacro("GL_FRAGMENT_PRECISION_HIGH", 1);
1.331 +
1.332 + return 0;
1.333 +}
1.334 +
