%{ /* * Copyright © 2008, 2009 Intel Corporation * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #include #include #include "util/strtod.h" #include "ast.h" #include "glsl_parser_extras.h" #include "glsl_parser.h" static int classify_identifier(struct _mesa_glsl_parse_state *, const char *, unsigned name_len, YYSTYPE *output); #ifdef _MSC_VER #define YY_NO_UNISTD_H #endif #define YY_NO_INPUT #define YY_USER_ACTION \ do { \ yylloc->first_column = yycolumn + 1; \ yylloc->first_line = yylloc->last_line = yylineno + 1; \ yycolumn += yyleng; \ yylloc->last_column = yycolumn + 1; \ } while(0); #define YY_USER_INIT yylineno = 0; yycolumn = 0; yylloc->source = 0; /* A macro for handling reserved words and keywords across language versions. * * Certain words start out as identifiers, become reserved words in * later language revisions, and finally become language keywords. * This may happen at different times in desktop GLSL and GLSL ES. * * For example, consider the following lexer rule: * samplerBuffer KEYWORD(130, 0, 140, 0, SAMPLERBUFFER) * * This means that "samplerBuffer" will be treated as: * - a keyword (SAMPLERBUFFER token) ...in GLSL >= 1.40 * - a reserved word - error ...in GLSL >= 1.30 * - an identifier ...in GLSL < 1.30 or GLSL ES */ #define KEYWORD(reserved_glsl, reserved_glsl_es, \ allowed_glsl, allowed_glsl_es, token) \ KEYWORD_WITH_ALT(reserved_glsl, reserved_glsl_es, \ allowed_glsl, allowed_glsl_es, false, token) /** * Like the KEYWORD macro, but the word is also treated as a keyword * if the given boolean expression is true. */ #define KEYWORD_WITH_ALT(reserved_glsl, reserved_glsl_es, \ allowed_glsl, allowed_glsl_es, \ alt_expr, token) \ do { \ if (yyextra->is_version(allowed_glsl, allowed_glsl_es) \ || (alt_expr)) { \ return token; \ } else if (yyextra->is_version(reserved_glsl, \ reserved_glsl_es)) { \ _mesa_glsl_error(yylloc, yyextra, \ "illegal use of reserved word `%s'", yytext); \ return ERROR_TOK; \ } else { \ return classify_identifier(yyextra, yytext, yyleng, yylval); \ } \ } while (0) /** * Like KEYWORD_WITH_ALT, but used for built-in GLSL types */ #define TYPE_WITH_ALT(reserved_glsl, reserved_glsl_es, \ allowed_glsl, allowed_glsl_es, \ alt_expr, gtype) \ do { \ if (yyextra->is_version(allowed_glsl, allowed_glsl_es) \ || (alt_expr)) { \ yylval->type = gtype; \ return BASIC_TYPE_TOK; \ } else if (yyextra->is_version(reserved_glsl, \ reserved_glsl_es)) { \ _mesa_glsl_error(yylloc, yyextra, \ "illegal use of reserved word `%s'", yytext); \ return ERROR_TOK; \ } else { \ return classify_identifier(yyextra, yytext, yyleng, yylval); \ } \ } while (0) #define TYPE(reserved_glsl, reserved_glsl_es, \ allowed_glsl, allowed_glsl_es, \ gtype) \ TYPE_WITH_ALT(reserved_glsl, reserved_glsl_es, \ allowed_glsl, allowed_glsl_es, \ false, gtype) /** * A macro for handling keywords that have been present in GLSL since * its origin, but were changed into reserved words in GLSL 3.00 ES. */ #define DEPRECATED_ES_KEYWORD(token) \ do { \ if (yyextra->is_version(0, 300)) { \ _mesa_glsl_error(yylloc, yyextra, \ "illegal use of reserved word `%s'", yytext); \ return ERROR_TOK; \ } else { \ return token; \ } \ } while (0) /** * Like DEPRECATED_ES_KEYWORD, but for types */ #define DEPRECATED_ES_TYPE_WITH_ALT(alt_expr, gtype) \ do { \ if (yyextra->is_version(0, 300)) { \ _mesa_glsl_error(yylloc, yyextra, \ "illegal use of reserved word `%s'", yytext); \ return ERROR_TOK; \ } else if (alt_expr) { \ yylval->type = gtype; \ return BASIC_TYPE_TOK; \ } else { \ return classify_identifier(yyextra, yytext, yyleng, yylval); \ } \ } while (0) #define DEPRECATED_ES_TYPE(gtype) \ DEPRECATED_ES_TYPE_WITH_ALT(true, gtype) static int literal_integer(char *text, int len, struct _mesa_glsl_parse_state *state, YYSTYPE *lval, YYLTYPE *lloc, int base) { bool is_uint = (text[len - 1] == 'u' || text[len - 1] == 'U'); bool is_long = (text[len - 1] == 'l' || text[len - 1] == 'L'); const char *digits = text; if (is_long) is_uint = (text[len - 2] == 'u' && text[len - 1] == 'l') || (text[len - 2] == 'U' && text[len - 1] == 'L'); /* Skip "0x" */ if (base == 16) digits += 2; unsigned long long value = strtoull(digits, NULL, base); if (is_long) lval->n64 = (int64_t)value; else lval->n = (int)value; if (is_long && !is_uint && base == 10 && value > (uint64_t)LLONG_MAX + 1) { /* Tries to catch unintentionally providing a negative value. */ _mesa_glsl_warning(lloc, state, "signed literal value `%s' is interpreted as %lld", text, lval->n64); } else if (!is_long && value > UINT_MAX) { /* Note that signed 0xffffffff is valid, not out of range! */ if (state->is_version(130, 300)) { _mesa_glsl_error(lloc, state, "literal value `%s' out of range", text); } else { _mesa_glsl_warning(lloc, state, "literal value `%s' out of range", text); } } else if (base == 10 && !is_uint && (unsigned)value > (unsigned)INT_MAX + 1) { /* Tries to catch unintentionally providing a negative value. * Note that -2147483648 is parsed as -(2147483648), so we don't * want to warn for INT_MAX. */ _mesa_glsl_warning(lloc, state, "signed literal value `%s' is interpreted as %d", text, lval->n); } if (is_long) return is_uint ? UINT64CONSTANT : INT64CONSTANT; else return is_uint ? UINTCONSTANT : INTCONSTANT; } #define LITERAL_INTEGER(base) \ literal_integer(yytext, yyleng, yyextra, yylval, yylloc, base) %} %option bison-bridge bison-locations reentrant noyywrap %option nounput noyy_top_state %option never-interactive %option prefix="_mesa_glsl_lexer_" %option extra-type="struct _mesa_glsl_parse_state *" %option warn nodefault /* Note: When adding any start conditions to this list, you must also * update the "Internal compiler error" catch-all rule near the end of * this file. */ %x PP PRAGMA DEC_INT [1-9][0-9]* HEX_INT 0[xX][0-9a-fA-F]+ OCT_INT 0[0-7]* INT ({DEC_INT}|{HEX_INT}|{OCT_INT}) SPC [ \t]* SPCP [ \t]+ HASH ^{SPC}#{SPC} %% [ \r\t]+ ; /* Preprocessor tokens. */ ^[ \t]*#[ \t]*$ ; ^[ \t]*#[ \t]*version { BEGIN PP; return VERSION_TOK; } ^[ \t]*#[ \t]*extension { BEGIN PP; return EXTENSION; } {HASH}line{SPCP}{INT}{SPCP}{INT}{SPC}$ { /* Eat characters until the first digit is * encountered */ char *ptr = yytext; while (!isdigit(*ptr)) ptr++; /* Subtract one from the line number because * yylineno is zero-based instead of * one-based. */ yylineno = strtol(ptr, &ptr, 0) - 1; /* From GLSL 3.30 and GLSL ES on, after processing the * line directive (including its new-line), the implementation * will behave as if it is compiling at the line number passed * as argument. It was line number + 1 in older specifications. */ if (yyextra->is_version(330, 100)) yylineno--; yylloc->source = strtol(ptr, NULL, 0); } {HASH}line{SPCP}{INT}{SPC}$ { /* Eat characters until the first digit is * encountered */ char *ptr = yytext; while (!isdigit(*ptr)) ptr++; /* Subtract one from the line number because * yylineno is zero-based instead of * one-based. */ yylineno = strtol(ptr, &ptr, 0) - 1; /* From GLSL 3.30 and GLSL ES on, after processing the * line directive (including its new-line), the implementation * will behave as if it is compiling at the line number passed * as argument. It was line number + 1 in older specifications. */ if (yyextra->is_version(330, 100)) yylineno--; } ^{SPC}#{SPC}pragma{SPCP}debug{SPC}\({SPC}on{SPC}\) { BEGIN PP; return PRAGMA_DEBUG_ON; } ^{SPC}#{SPC}pragma{SPCP}debug{SPC}\({SPC}off{SPC}\) { BEGIN PP; return PRAGMA_DEBUG_OFF; } ^{SPC}#{SPC}pragma{SPCP}optimize{SPC}\({SPC}on{SPC}\) { BEGIN PP; return PRAGMA_OPTIMIZE_ON; } ^{SPC}#{SPC}pragma{SPCP}optimize{SPC}\({SPC}off{SPC}\) { BEGIN PP; return PRAGMA_OPTIMIZE_OFF; } ^{SPC}#{SPC}pragma{SPCP}STDGL{SPCP}invariant{SPC}\({SPC}all{SPC}\) { BEGIN PP; return PRAGMA_INVARIANT_ALL; } ^{SPC}#{SPC}pragma{SPCP} { BEGIN PRAGMA; } \n { BEGIN 0; yylineno++; yycolumn = 0; } . { } \/\/[^\n]* { } [ \t\r]* { } : return COLON; [_a-zA-Z][_a-zA-Z0-9]* { /* We're not doing linear_strdup here, to avoid an implicit call * on strlen() for the length of the string, as this is already * found by flex and stored in yyleng */ void *mem_ctx = yyextra->linalloc; char *id = (char *) linear_alloc_child(mem_ctx, yyleng + 1); memcpy(id, yytext, yyleng + 1); yylval->identifier = id; return IDENTIFIER; } [1-9][0-9]* { yylval->n = strtol(yytext, NULL, 10); return INTCONSTANT; } 0 { yylval->n = 0; return INTCONSTANT; } \n { BEGIN 0; yylineno++; yycolumn = 0; return EOL; } . { return yytext[0]; } \n { yylineno++; yycolumn = 0; } attribute DEPRECATED_ES_KEYWORD(ATTRIBUTE); const return CONST_TOK; bool { yylval->type = glsl_type::bool_type; return BASIC_TYPE_TOK; } float { yylval->type = glsl_type::float_type; return BASIC_TYPE_TOK; } int { yylval->type = glsl_type::int_type; return BASIC_TYPE_TOK; } uint TYPE(130, 300, 130, 300, glsl_type::uint_type); break return BREAK; continue return CONTINUE; do return DO; while return WHILE; else return ELSE; for return FOR; if return IF; discard return DISCARD; return return RETURN; bvec2 { yylval->type = glsl_type::bvec2_type; return BASIC_TYPE_TOK; } bvec3 { yylval->type = glsl_type::bvec3_type; return BASIC_TYPE_TOK; } bvec4 { yylval->type = glsl_type::bvec4_type; return BASIC_TYPE_TOK; } ivec2 { yylval->type = glsl_type::ivec2_type; return BASIC_TYPE_TOK; } ivec3 { yylval->type = glsl_type::ivec3_type; return BASIC_TYPE_TOK; } ivec4 { yylval->type = glsl_type::ivec4_type; return BASIC_TYPE_TOK; } uvec2 TYPE(130, 300, 130, 300, glsl_type::uvec2_type); uvec3 TYPE(130, 300, 130, 300, glsl_type::uvec3_type); uvec4 TYPE(130, 300, 130, 300, glsl_type::uvec4_type); vec2 { yylval->type = glsl_type::vec2_type; return BASIC_TYPE_TOK; } vec3 { yylval->type = glsl_type::vec3_type; return BASIC_TYPE_TOK; } vec4 { yylval->type = glsl_type::vec4_type; return BASIC_TYPE_TOK; } mat2 { yylval->type = glsl_type::mat2_type; return BASIC_TYPE_TOK; } mat3 { yylval->type = glsl_type::mat3_type; return BASIC_TYPE_TOK; } mat4 { yylval->type = glsl_type::mat4_type; return BASIC_TYPE_TOK; } mat2x2 TYPE(120, 300, 120, 300, glsl_type::mat2_type); mat2x3 TYPE(120, 300, 120, 300, glsl_type::mat2x3_type); mat2x4 TYPE(120, 300, 120, 300, glsl_type::mat2x4_type); mat3x2 TYPE(120, 300, 120, 300, glsl_type::mat3x2_type); mat3x3 TYPE(120, 300, 120, 300, glsl_type::mat3_type); mat3x4 TYPE(120, 300, 120, 300, glsl_type::mat3x4_type); mat4x2 TYPE(120, 300, 120, 300, glsl_type::mat4x2_type); mat4x3 TYPE(120, 300, 120, 300, glsl_type::mat4x3_type); mat4x4 TYPE(120, 300, 120, 300, glsl_type::mat4_type); in return IN_TOK; out return OUT_TOK; inout return INOUT_TOK; uniform return UNIFORM; buffer KEYWORD_WITH_ALT(0, 0, 430, 310, yyextra->ARB_shader_storage_buffer_object_enable, BUFFER); varying DEPRECATED_ES_KEYWORD(VARYING); centroid KEYWORD(120, 300, 120, 300, CENTROID); invariant KEYWORD(120, 100, 120, 100, INVARIANT); flat KEYWORD(130, 100, 130, 300, FLAT); smooth KEYWORD(130, 300, 130, 300, SMOOTH); noperspective KEYWORD(130, 300, 130, 0, NOPERSPECTIVE); patch KEYWORD_WITH_ALT(0, 300, 400, 320, yyextra->has_tessellation_shader(), PATCH); sampler1D DEPRECATED_ES_TYPE(glsl_type::sampler1D_type); sampler2D { yylval->type = glsl_type::sampler2D_type; return BASIC_TYPE_TOK; } sampler3D { yylval->type = glsl_type::sampler3D_type; return BASIC_TYPE_TOK; } samplerCube { yylval->type = glsl_type::samplerCube_type; return BASIC_TYPE_TOK; } sampler1DArray TYPE(130, 300, 130, 0, glsl_type::sampler1DArray_type); sampler2DArray TYPE(130, 300, 130, 300, glsl_type::sampler2DArray_type); sampler1DShadow DEPRECATED_ES_TYPE(glsl_type::sampler1DShadow_type); sampler2DShadow { yylval->type = glsl_type::sampler2DShadow_type; return BASIC_TYPE_TOK; } samplerCubeShadow TYPE(130, 300, 130, 300, glsl_type::samplerCubeShadow_type); sampler1DArrayShadow TYPE(130, 300, 130, 0, glsl_type::sampler1DArrayShadow_type); sampler2DArrayShadow TYPE(130, 300, 130, 300, glsl_type::sampler2DArrayShadow_type); isampler1D TYPE(130, 300, 130, 0, glsl_type::isampler1D_type); isampler2D TYPE(130, 300, 130, 300, glsl_type::isampler2D_type); isampler3D TYPE(130, 300, 130, 300, glsl_type::isampler3D_type); isamplerCube TYPE(130, 300, 130, 300, glsl_type::isamplerCube_type); isampler1DArray TYPE(130, 300, 130, 0, glsl_type::isampler1DArray_type); isampler2DArray TYPE(130, 300, 130, 300, glsl_type::isampler2DArray_type); usampler1D TYPE(130, 300, 130, 0, glsl_type::usampler1D_type); usampler2D TYPE(130, 300, 130, 300, glsl_type::usampler2D_type); usampler3D TYPE(130, 300, 130, 300, glsl_type::usampler3D_type); usamplerCube TYPE(130, 300, 130, 300, glsl_type::usamplerCube_type); usampler1DArray TYPE(130, 300, 130, 0, glsl_type::usampler1DArray_type); usampler2DArray TYPE(130, 300, 130, 300, glsl_type::usampler2DArray_type); /* additional keywords in ARB_texture_multisample, included in GLSL 1.50 */ /* these are reserved but not defined in GLSL 3.00 */ /* [iu]sampler2DMS are defined in GLSL ES 3.10 */ sampler2DMS TYPE_WITH_ALT(150, 300, 150, 310, yyextra->ARB_texture_multisample_enable, glsl_type::sampler2DMS_type); isampler2DMS TYPE_WITH_ALT(150, 300, 150, 310, yyextra->ARB_texture_multisample_enable, glsl_type::isampler2DMS_type); usampler2DMS TYPE_WITH_ALT(150, 300, 150, 310, yyextra->ARB_texture_multisample_enable, glsl_type::usampler2DMS_type); sampler2DMSArray TYPE_WITH_ALT(150, 300, 150, 320, yyextra->ARB_texture_multisample_enable || yyextra->OES_texture_storage_multisample_2d_array_enable, glsl_type::sampler2DMSArray_type); isampler2DMSArray TYPE_WITH_ALT(150, 300, 150, 320, yyextra->ARB_texture_multisample_enable || yyextra->OES_texture_storage_multisample_2d_array_enable, glsl_type::isampler2DMSArray_type); usampler2DMSArray TYPE_WITH_ALT(150, 300, 150, 320, yyextra->ARB_texture_multisample_enable || yyextra->OES_texture_storage_multisample_2d_array_enable, glsl_type::usampler2DMSArray_type); /* keywords available with ARB_texture_cube_map_array_enable extension on desktop GLSL */ samplerCubeArray TYPE_WITH_ALT(400, 310, 400, 320, yyextra->ARB_texture_cube_map_array_enable || yyextra->OES_texture_cube_map_array_enable || yyextra->EXT_texture_cube_map_array_enable, glsl_type::samplerCubeArray_type); isamplerCubeArray TYPE_WITH_ALT(400, 310, 400, 320, yyextra->ARB_texture_cube_map_array_enable || yyextra->OES_texture_cube_map_array_enable || yyextra->EXT_texture_cube_map_array_enable, glsl_type::isamplerCubeArray_type); usamplerCubeArray TYPE_WITH_ALT(400, 310, 400, 320, yyextra->ARB_texture_cube_map_array_enable || yyextra->OES_texture_cube_map_array_enable || yyextra->EXT_texture_cube_map_array_enable, glsl_type::usamplerCubeArray_type); samplerCubeArrayShadow TYPE_WITH_ALT(400, 310, 400, 320, yyextra->ARB_texture_cube_map_array_enable || yyextra->OES_texture_cube_map_array_enable || yyextra->EXT_texture_cube_map_array_enable, glsl_type::samplerCubeArrayShadow_type); samplerExternalOES { if (yyextra->OES_EGL_image_external_enable || yyextra->OES_EGL_image_external_essl3_enable) { yylval->type = glsl_type::samplerExternalOES_type; return BASIC_TYPE_TOK; } else return IDENTIFIER; } /* keywords available with ARB_gpu_shader5 */ precise KEYWORD_WITH_ALT(400, 310, 400, 320, yyextra->ARB_gpu_shader5_enable || yyextra->EXT_gpu_shader5_enable || yyextra->OES_gpu_shader5_enable, PRECISE); /* keywords available with ARB_shader_image_load_store */ image1D TYPE_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, glsl_type::image1D_type); image2D TYPE_WITH_ALT(130, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable, glsl_type::image2D_type); image3D TYPE_WITH_ALT(130, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable, glsl_type::image3D_type); image2DRect TYPE_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, glsl_type::image2DRect_type); imageCube TYPE_WITH_ALT(130, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable, glsl_type::imageCube_type); imageBuffer TYPE_WITH_ALT(130, 300, 420, 320, yyextra->ARB_shader_image_load_store_enable || yyextra->EXT_texture_buffer_enable || yyextra->OES_texture_buffer_enable, glsl_type::imageBuffer_type); image1DArray TYPE_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, glsl_type::image1DArray_type); image2DArray TYPE_WITH_ALT(130, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable, glsl_type::image2DArray_type); imageCubeArray TYPE_WITH_ALT(130, 300, 420, 320, yyextra->ARB_shader_image_load_store_enable || yyextra->OES_texture_cube_map_array_enable || yyextra->EXT_texture_cube_map_array_enable, glsl_type::imageCubeArray_type); image2DMS TYPE_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, glsl_type::image2DMS_type); image2DMSArray TYPE_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, glsl_type::image2DMSArray_type); iimage1D TYPE_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, glsl_type::iimage1D_type); iimage2D TYPE_WITH_ALT(130, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable, glsl_type::iimage2D_type); iimage3D TYPE_WITH_ALT(130, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable, glsl_type::iimage3D_type); iimage2DRect TYPE_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, glsl_type::iimage2DRect_type); iimageCube TYPE_WITH_ALT(130, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable, glsl_type::iimageCube_type); iimageBuffer TYPE_WITH_ALT(130, 300, 420, 320, yyextra->ARB_shader_image_load_store_enable || yyextra->EXT_texture_buffer_enable || yyextra->OES_texture_buffer_enable, glsl_type::iimageBuffer_type); iimage1DArray TYPE_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, glsl_type::iimage1DArray_type); iimage2DArray TYPE_WITH_ALT(130, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable, glsl_type::iimage2DArray_type); iimageCubeArray TYPE_WITH_ALT(130, 300, 420, 320, yyextra->ARB_shader_image_load_store_enable || yyextra->OES_texture_cube_map_array_enable || yyextra->EXT_texture_cube_map_array_enable, glsl_type::iimageCubeArray_type); iimage2DMS TYPE_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, glsl_type::iimage2DMS_type); iimage2DMSArray TYPE_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, glsl_type::iimage2DMSArray_type); uimage1D TYPE_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, glsl_type::uimage1D_type); uimage2D TYPE_WITH_ALT(130, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable, glsl_type::uimage2D_type); uimage3D TYPE_WITH_ALT(130, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable, glsl_type::uimage3D_type); uimage2DRect TYPE_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, glsl_type::uimage2DRect_type); uimageCube TYPE_WITH_ALT(130, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable, glsl_type::uimageCube_type); uimageBuffer TYPE_WITH_ALT(130, 300, 420, 320, yyextra->ARB_shader_image_load_store_enable || yyextra->EXT_texture_buffer_enable || yyextra->OES_texture_buffer_enable, glsl_type::uimageBuffer_type); uimage1DArray TYPE_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, glsl_type::uimage1DArray_type); uimage2DArray TYPE_WITH_ALT(130, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable, glsl_type::uimage2DArray_type); uimageCubeArray TYPE_WITH_ALT(130, 300, 420, 320, yyextra->ARB_shader_image_load_store_enable || yyextra->OES_texture_cube_map_array_enable || yyextra->EXT_texture_cube_map_array_enable, glsl_type::uimageCubeArray_type); uimage2DMS TYPE_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, glsl_type::uimage2DMS_type); uimage2DMSArray TYPE_WITH_ALT(130, 300, 420, 0, yyextra->ARB_shader_image_load_store_enable, glsl_type::uimage2DMSArray_type); image1DShadow KEYWORD(130, 300, 0, 0, IMAGE1DSHADOW); image2DShadow KEYWORD(130, 300, 0, 0, IMAGE2DSHADOW); image1DArrayShadow KEYWORD(130, 300, 0, 0, IMAGE1DARRAYSHADOW); image2DArrayShadow KEYWORD(130, 300, 0, 0, IMAGE2DARRAYSHADOW); coherent KEYWORD_WITH_ALT(420, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable || yyextra->ARB_shader_storage_buffer_object_enable, COHERENT); volatile KEYWORD_WITH_ALT(110, 100, 420, 310, yyextra->ARB_shader_image_load_store_enable || yyextra->ARB_shader_storage_buffer_object_enable, VOLATILE); restrict KEYWORD_WITH_ALT(420, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable || yyextra->ARB_shader_storage_buffer_object_enable, RESTRICT); readonly KEYWORD_WITH_ALT(420, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable || yyextra->ARB_shader_storage_buffer_object_enable, READONLY); writeonly KEYWORD_WITH_ALT(420, 300, 420, 310, yyextra->ARB_shader_image_load_store_enable || yyextra->ARB_shader_storage_buffer_object_enable, WRITEONLY); atomic_uint TYPE_WITH_ALT(420, 300, 420, 310, yyextra->ARB_shader_atomic_counters_enable, glsl_type::atomic_uint_type); shared KEYWORD_WITH_ALT(430, 310, 430, 310, yyextra->ARB_compute_shader_enable, SHARED); struct return STRUCT; void return VOID_TOK; layout { if ((yyextra->is_version(140, 300)) || yyextra->ARB_bindless_texture_enable || yyextra->KHR_blend_equation_advanced_enable || yyextra->AMD_conservative_depth_enable || yyextra->ARB_conservative_depth_enable || yyextra->ARB_explicit_attrib_location_enable || yyextra->ARB_explicit_uniform_location_enable || yyextra->has_separate_shader_objects() || yyextra->ARB_uniform_buffer_object_enable || yyextra->ARB_fragment_coord_conventions_enable || yyextra->ARB_shading_language_420pack_enable || yyextra->ARB_compute_shader_enable || yyextra->ARB_tessellation_shader_enable) { return LAYOUT_TOK; } else { return classify_identifier(yyextra, yytext, yyleng, yylval); } } \+\+ return INC_OP; -- return DEC_OP; \<= return LE_OP; >= return GE_OP; == return EQ_OP; != return NE_OP; && return AND_OP; \|\| return OR_OP; "^^" return XOR_OP; "<<" return LEFT_OP; ">>" return RIGHT_OP; \*= return MUL_ASSIGN; \/= return DIV_ASSIGN; \+= return ADD_ASSIGN; \%= return MOD_ASSIGN; \<\<= return LEFT_ASSIGN; >>= return RIGHT_ASSIGN; &= return AND_ASSIGN; "^=" return XOR_ASSIGN; \|= return OR_ASSIGN; -= return SUB_ASSIGN; [1-9][0-9]*([uU]|[lL]|ul|UL)? { return LITERAL_INTEGER(10); } 0[xX][0-9a-fA-F]+([uU]|[lL]|ul|UL)? { return LITERAL_INTEGER(16); } 0[0-7]*([uU]|[lL]|ul|UL)? { return LITERAL_INTEGER(8); } [0-9]+\.[0-9]+([eE][+-]?[0-9]+)?[fF]? | \.[0-9]+([eE][+-]?[0-9]+)?[fF]? | [0-9]+\.([eE][+-]?[0-9]+)?[fF]? | [0-9]+[eE][+-]?[0-9]+[fF]? { struct _mesa_glsl_parse_state *state = yyextra; char suffix = yytext[strlen(yytext) - 1]; if (!state->is_version(120, 300) && (suffix == 'f' || suffix == 'F')) { _mesa_glsl_warning(yylloc, state, "Float suffixes are invalid in GLSL 1.10"); } yylval->real = _mesa_strtof(yytext, NULL); return FLOATCONSTANT; } [0-9]+\.[0-9]+([eE][+-]?[0-9]+)?(lf|LF) | \.[0-9]+([eE][+-]?[0-9]+)?(lf|LF) | [0-9]+\.([eE][+-]?[0-9]+)?(lf|LF) | [0-9]+[eE][+-]?[0-9]+(lf|LF) { if (!yyextra->is_version(400, 0) && !yyextra->ARB_gpu_shader_fp64_enable) return ERROR_TOK; yylval->dreal = _mesa_strtod(yytext, NULL); return DOUBLECONSTANT; } true { yylval->n = 1; return BOOLCONSTANT; } false { yylval->n = 0; return BOOLCONSTANT; } /* Reserved words in GLSL 1.10. */ asm KEYWORD(110, 100, 0, 0, ASM); class KEYWORD(110, 100, 0, 0, CLASS); union KEYWORD(110, 100, 0, 0, UNION); enum KEYWORD(110, 100, 0, 0, ENUM); typedef KEYWORD(110, 100, 0, 0, TYPEDEF); template KEYWORD(110, 100, 0, 0, TEMPLATE); this KEYWORD(110, 100, 0, 0, THIS); packed KEYWORD_WITH_ALT(110, 100, 140, 300, yyextra->ARB_uniform_buffer_object_enable, PACKED_TOK); goto KEYWORD(110, 100, 0, 0, GOTO); switch KEYWORD(110, 100, 130, 300, SWITCH); default KEYWORD(110, 100, 130, 300, DEFAULT); inline KEYWORD(110, 100, 0, 0, INLINE_TOK); noinline KEYWORD(110, 100, 0, 0, NOINLINE); public KEYWORD(110, 100, 0, 0, PUBLIC_TOK); static KEYWORD(110, 100, 0, 0, STATIC); extern KEYWORD(110, 100, 0, 0, EXTERN); external KEYWORD(110, 100, 0, 0, EXTERNAL); interface KEYWORD(110, 100, 0, 0, INTERFACE); long KEYWORD(110, 100, 0, 0, LONG_TOK); short KEYWORD(110, 100, 0, 0, SHORT_TOK); double TYPE_WITH_ALT(130, 300, 130, 300, yyextra->ARB_gpu_shader_fp64_enable, glsl_type::double_type); half KEYWORD(110, 100, 0, 0, HALF); fixed KEYWORD(110, 100, 0, 0, FIXED_TOK); unsigned KEYWORD(110, 100, 0, 0, UNSIGNED); input KEYWORD(110, 100, 0, 0, INPUT_TOK); output KEYWORD(110, 100, 0, 0, OUTPUT); hvec2 KEYWORD(110, 100, 0, 0, HVEC2); hvec3 KEYWORD(110, 100, 0, 0, HVEC3); hvec4 KEYWORD(110, 100, 0, 0, HVEC4); dvec2 TYPE_WITH_ALT(110, 100, 400, 0, yyextra->ARB_gpu_shader_fp64_enable, glsl_type::dvec2_type); dvec3 TYPE_WITH_ALT(110, 100, 400, 0, yyextra->ARB_gpu_shader_fp64_enable, glsl_type::dvec3_type); dvec4 TYPE_WITH_ALT(110, 100, 400, 0, yyextra->ARB_gpu_shader_fp64_enable, glsl_type::dvec4_type); dmat2 TYPE_WITH_ALT(110, 100, 400, 0, yyextra->ARB_gpu_shader_fp64_enable, glsl_type::dmat2_type); dmat3 TYPE_WITH_ALT(110, 100, 400, 0, yyextra->ARB_gpu_shader_fp64_enable, glsl_type::dmat3_type); dmat4 TYPE_WITH_ALT(110, 100, 400, 0, yyextra->ARB_gpu_shader_fp64_enable, glsl_type::dmat4_type); dmat2x2 TYPE_WITH_ALT(110, 100, 400, 0, yyextra->ARB_gpu_shader_fp64_enable, glsl_type::dmat2_type); dmat2x3 TYPE_WITH_ALT(110, 100, 400, 0, yyextra->ARB_gpu_shader_fp64_enable, glsl_type::dmat2x3_type); dmat2x4 TYPE_WITH_ALT(110, 100, 400, 0, yyextra->ARB_gpu_shader_fp64_enable, glsl_type::dmat2x4_type); dmat3x2 TYPE_WITH_ALT(110, 100, 400, 0, yyextra->ARB_gpu_shader_fp64_enable, glsl_type::dmat3x2_type); dmat3x3 TYPE_WITH_ALT(110, 100, 400, 0, yyextra->ARB_gpu_shader_fp64_enable, glsl_type::dmat3_type); dmat3x4 TYPE_WITH_ALT(110, 100, 400, 0, yyextra->ARB_gpu_shader_fp64_enable, glsl_type::dmat3x4_type); dmat4x2 TYPE_WITH_ALT(110, 100, 400, 0, yyextra->ARB_gpu_shader_fp64_enable, glsl_type::dmat4x2_type); dmat4x3 TYPE_WITH_ALT(110, 100, 400, 0, yyextra->ARB_gpu_shader_fp64_enable, glsl_type::dmat4x3_type); dmat4x4 TYPE_WITH_ALT(110, 100, 400, 0, yyextra->ARB_gpu_shader_fp64_enable, glsl_type::dmat4_type); fvec2 KEYWORD(110, 100, 0, 0, FVEC2); fvec3 KEYWORD(110, 100, 0, 0, FVEC3); fvec4 KEYWORD(110, 100, 0, 0, FVEC4); sampler2DRect DEPRECATED_ES_TYPE_WITH_ALT(yyextra->ARB_texture_rectangle_enable, glsl_type::sampler2DRect_type); sampler3DRect KEYWORD(110, 100, 0, 0, SAMPLER3DRECT); sampler2DRectShadow DEPRECATED_ES_TYPE_WITH_ALT(yyextra->ARB_texture_rectangle_enable, glsl_type::sampler2DRectShadow_type); sizeof KEYWORD(110, 100, 0, 0, SIZEOF); cast KEYWORD(110, 100, 0, 0, CAST); namespace KEYWORD(110, 100, 0, 0, NAMESPACE); using KEYWORD(110, 100, 0, 0, USING); /* Additional reserved words in GLSL 1.20. */ lowp KEYWORD(120, 100, 130, 100, LOWP); mediump KEYWORD(120, 100, 130, 100, MEDIUMP); highp KEYWORD(120, 100, 130, 100, HIGHP); precision KEYWORD(120, 100, 130, 100, PRECISION); /* Additional reserved words in GLSL 1.30. */ case KEYWORD(130, 300, 130, 300, CASE); common KEYWORD(130, 300, 0, 0, COMMON); partition KEYWORD(130, 300, 0, 0, PARTITION); active KEYWORD(130, 300, 0, 0, ACTIVE); superp KEYWORD(130, 100, 0, 0, SUPERP); samplerBuffer TYPE_WITH_ALT(130, 300, 140, 320, yyextra->EXT_texture_buffer_enable || yyextra->OES_texture_buffer_enable, glsl_type::samplerBuffer_type); filter KEYWORD(130, 300, 0, 0, FILTER); row_major KEYWORD_WITH_ALT(130, 0, 140, 0, yyextra->ARB_uniform_buffer_object_enable && !yyextra->es_shader, ROW_MAJOR); /* Additional reserved words in GLSL 1.40 */ isampler2DRect TYPE(140, 300, 140, 0, glsl_type::isampler2DRect_type); usampler2DRect TYPE(140, 300, 140, 0, glsl_type::usampler2DRect_type); isamplerBuffer TYPE_WITH_ALT(140, 300, 140, 320, yyextra->EXT_texture_buffer_enable || yyextra->OES_texture_buffer_enable, glsl_type::isamplerBuffer_type); usamplerBuffer TYPE_WITH_ALT(140, 300, 140, 320, yyextra->EXT_texture_buffer_enable || yyextra->OES_texture_buffer_enable, glsl_type::usamplerBuffer_type); /* Additional reserved words in GLSL ES 3.00 */ resource KEYWORD(420, 300, 0, 0, RESOURCE); sample KEYWORD_WITH_ALT(400, 300, 400, 320, yyextra->ARB_gpu_shader5_enable || yyextra->OES_shader_multisample_interpolation_enable, SAMPLE); subroutine KEYWORD_WITH_ALT(400, 300, 400, 0, yyextra->ARB_shader_subroutine_enable, SUBROUTINE); /* Additional words for ARB_gpu_shader_int64 */ int64_t TYPE_WITH_ALT(0, 0, 0, 0, yyextra->ARB_gpu_shader_int64_enable, glsl_type::int64_t_type); i64vec2 TYPE_WITH_ALT(0, 0, 0, 0, yyextra->ARB_gpu_shader_int64_enable, glsl_type::i64vec2_type); i64vec3 TYPE_WITH_ALT(0, 0, 0, 0, yyextra->ARB_gpu_shader_int64_enable, glsl_type::i64vec3_type); i64vec4 TYPE_WITH_ALT(0, 0, 0, 0, yyextra->ARB_gpu_shader_int64_enable, glsl_type::i64vec4_type); uint64_t TYPE_WITH_ALT(0, 0, 0, 0, yyextra->ARB_gpu_shader_int64_enable, glsl_type::uint64_t_type); u64vec2 TYPE_WITH_ALT(0, 0, 0, 0, yyextra->ARB_gpu_shader_int64_enable, glsl_type::u64vec2_type); u64vec3 TYPE_WITH_ALT(0, 0, 0, 0, yyextra->ARB_gpu_shader_int64_enable, glsl_type::u64vec3_type); u64vec4 TYPE_WITH_ALT(0, 0, 0, 0, yyextra->ARB_gpu_shader_int64_enable, glsl_type::u64vec4_type); [_a-zA-Z][_a-zA-Z0-9]* { struct _mesa_glsl_parse_state *state = yyextra; if (state->es_shader && yyleng > 1024) { _mesa_glsl_error(yylloc, state, "Identifier `%s' exceeds 1024 characters", yytext); } return classify_identifier(state, yytext, yyleng, yylval); } \. { struct _mesa_glsl_parse_state *state = yyextra; state->is_field = true; return DOT_TOK; } . { return yytext[0]; } %% int classify_identifier(struct _mesa_glsl_parse_state *state, const char *name, unsigned name_len, YYSTYPE *output) { /* We're not doing linear_strdup here, to avoid an implicit call on * strlen() for the length of the string, as this is already found by flex * and stored in yyleng */ char *id = (char *) linear_alloc_child(state->linalloc, name_len + 1); memcpy(id, name, name_len + 1); output->identifier = id; if (state->is_field) { state->is_field = false; return FIELD_SELECTION; } if (state->symbols->get_variable(name) || state->symbols->get_function(name)) return IDENTIFIER; else if (state->symbols->get_type(name)) return TYPE_IDENTIFIER; else return NEW_IDENTIFIER; } void _mesa_glsl_lexer_ctor(struct _mesa_glsl_parse_state *state, const char *string) { yylex_init_extra(state, & state->scanner); yy_scan_string(string, state->scanner); } void _mesa_glsl_lexer_dtor(struct _mesa_glsl_parse_state *state) { yylex_destroy(state->scanner); }