glsl: Recognize GLSL ES 1.00 keywords.

4 files changed, 287 insertions, 281 deletions

diff --git a/src/glsl/glsl_lexer.cpp b/src/glsl/glsl_lexer.cpp
index 873df609d3..7661bbe982 100644
--- a/src/glsl/glsl_lexer.cpp
+++ b/src/glsl/glsl_lexer.cpp
@@ -54,6 +54,7 @@ typedef int flex_int32_t;
 typedef unsigned char flex_uint8_t; 
 typedef unsigned short int flex_uint16_t;
 typedef unsigned int flex_uint32_t;
+#endif /* ! C99 */
 
 /* Limits of integral types. */
 #ifndef INT8_MIN
@@ -84,8 +85,6 @@ typedef unsigned int flex_uint32_t;
 #define UINT32_MAX             (4294967295U)
 #endif
 
-#endif /* ! C99 */
-
 #endif /* ! FLEXINT_H */
 
 #ifdef __cplusplus
@@ -159,15 +158,7 @@ typedef void* yyscan_t;
 
 /* Size of default input buffer. */
 #ifndef YY_BUF_SIZE
-#ifdef __ia64__
-/* On IA-64, the buffer size is 16k, not 8k.
- * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case.
- * Ditto for the __ia64__ case accordingly.
- */
-#define YY_BUF_SIZE 32768
-#else
 #define YY_BUF_SIZE 16384
-#endif /* __ia64__ */
 #endif
 
 /* The state buf must be large enough to hold one state per character in the main buffer.
@@ -974,6 +965,16 @@ static yyconst flex_int16_t yy_chk[1145] =
       }								 \
    } while (0)
 
+/* Handle reserved words in GLSL ES (version 100) */
+#define TOKEN_OR_IDENTIFIER_ES(version, token)			\
+   do {								\
+      if (yyextra->es_shader) {					\
+	return token;						\
+      } else {							\
+	TOKEN_OR_IDENTIFIER(version, token);			\
+      }								\
+   } while (0)
+
 #define RESERVED_WORD(version, token)					\
    do {									\
       if (yyextra->language_version >= version) {			\
@@ -985,7 +986,7 @@ static yyconst flex_int16_t yy_chk[1145] =
       }									\
    } while (0)
 
-#line 989 "glsl_lexer.cpp"
+#line 990 "glsl_lexer.cpp"
 
 #define INITIAL 0
 #define PP 1
@@ -1112,12 +1113,7 @@ static int input (yyscan_t yyscanner );
 
 /* Amount of stuff to slurp up with each read. */
 #ifndef YY_READ_BUF_SIZE
-#ifdef __ia64__
-/* On IA-64, the buffer size is 16k, not 8k */
-#define YY_READ_BUF_SIZE 16384
-#else
 #define YY_READ_BUF_SIZE 8192
-#endif /* __ia64__ */
 #endif
 
 /* Copy whatever the last rule matched to the standard output. */
@@ -1125,7 +1121,7 @@ static int input (yyscan_t yyscanner );
 /* This used to be an fputs(), but since the string might contain NUL's,
  * we now use fwrite().
  */
-#define ECHO do { if (fwrite( yytext, yyleng, 1, yyout )) {} } while (0)
+#define ECHO fwrite( yytext, yyleng, 1, yyout )
 #endif
 
 /* Gets input and stuffs it into "buf".  number of characters read, or YY_NULL,
@@ -1136,7 +1132,7 @@ static int input (yyscan_t yyscanner );
 	if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \
 		{ \
 		int c = '*'; \
-		size_t n; \
+		int n; \
 		for ( n = 0; n < max_size && \
 			     (c = getc( yyin )) != EOF && c != '\n'; ++n ) \
 			buf[n] = (char) c; \
@@ -1224,10 +1220,10 @@ YY_DECL
 	register int yy_act;
     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
 
-#line 76 "glsl_lexer.lpp"
+#line 86 "glsl_lexer.lpp"
 
 
-#line 1231 "glsl_lexer.cpp"
+#line 1227 "glsl_lexer.cpp"
 
     yylval = yylval_param;
 
@@ -1313,7 +1309,7 @@ do_action:	/* This label is used only to access EOF actions. */
 
 case 1:
 YY_RULE_SETUP
-#line 78 "glsl_lexer.lpp"
+#line 88 "glsl_lexer.lpp"
 ;
 	YY_BREAK
 /* Preprocessor tokens. */ 
@@ -1322,17 +1318,17 @@ case 2:
 yyg->yy_c_buf_p = yy_cp -= 1;
 YY_DO_BEFORE_ACTION; /* set up yytext again */
 YY_RULE_SETUP
-#line 81 "glsl_lexer.lpp"
+#line 91 "glsl_lexer.lpp"
 ;
 	YY_BREAK
 case 3:
 YY_RULE_SETUP
-#line 82 "glsl_lexer.lpp"
+#line 92 "glsl_lexer.lpp"
 { BEGIN PP; return VERSION; }
 	YY_BREAK
 case 4:
 YY_RULE_SETUP
-#line 83 "glsl_lexer.lpp"
+#line 93 "glsl_lexer.lpp"
 { BEGIN PP; return EXTENSION; }
 	YY_BREAK
 case 5:
@@ -1340,7 +1336,7 @@ case 5:
 yyg->yy_c_buf_p = yy_cp -= 1;
 YY_DO_BEFORE_ACTION; /* set up yytext again */
 YY_RULE_SETUP
-#line 84 "glsl_lexer.lpp"
+#line 94 "glsl_lexer.lpp"
 {
 				   /* Eat characters until the first digit is
 				    * encountered
@@ -1362,7 +1358,7 @@ case 6:
 yyg->yy_c_buf_p = yy_cp -= 1;
 YY_DO_BEFORE_ACTION; /* set up yytext again */
 YY_RULE_SETUP
-#line 99 "glsl_lexer.lpp"
+#line 109 "glsl_lexer.lpp"
 {
 				   /* Eat characters until the first digit is
 				    * encountered
@@ -1380,7 +1376,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 7:
 YY_RULE_SETUP
-#line 113 "glsl_lexer.lpp"
+#line 123 "glsl_lexer.lpp"
 {
 				  BEGIN PP;
 				  return PRAGMA_DEBUG_ON;
@@ -1388,7 +1384,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 8:
 YY_RULE_SETUP
-#line 117 "glsl_lexer.lpp"
+#line 127 "glsl_lexer.lpp"
 {
 				  BEGIN PP;
 				  return PRAGMA_DEBUG_OFF;
@@ -1396,7 +1392,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 9:
 YY_RULE_SETUP
-#line 121 "glsl_lexer.lpp"
+#line 131 "glsl_lexer.lpp"
 {
 				  BEGIN PP;
 				  return PRAGMA_OPTIMIZE_ON;
@@ -1404,7 +1400,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 10:
 YY_RULE_SETUP
-#line 125 "glsl_lexer.lpp"
+#line 135 "glsl_lexer.lpp"
 {
 				  BEGIN PP;
 				  return PRAGMA_OPTIMIZE_OFF;
@@ -1412,38 +1408,38 @@ YY_RULE_SETUP
 	YY_BREAK
 case 11:
 YY_RULE_SETUP
-#line 129 "glsl_lexer.lpp"
+#line 139 "glsl_lexer.lpp"
 { BEGIN PRAGMA; }
 	YY_BREAK
 case 12:
 /* rule 12 can match eol */
 YY_RULE_SETUP
-#line 131 "glsl_lexer.lpp"
+#line 141 "glsl_lexer.lpp"
 { BEGIN 0; yylineno++; yycolumn = 0; }
 	YY_BREAK
 case 13:
 YY_RULE_SETUP
-#line 132 "glsl_lexer.lpp"
+#line 142 "glsl_lexer.lpp"
 { }
 	YY_BREAK
 case 14:
 YY_RULE_SETUP
-#line 134 "glsl_lexer.lpp"
+#line 144 "glsl_lexer.lpp"
 { }
 	YY_BREAK
 case 15:
 YY_RULE_SETUP
-#line 135 "glsl_lexer.lpp"
+#line 145 "glsl_lexer.lpp"
 { }
 	YY_BREAK
 case 16:
 YY_RULE_SETUP
-#line 136 "glsl_lexer.lpp"
+#line 146 "glsl_lexer.lpp"
 return COLON;
 	YY_BREAK
 case 17:
 YY_RULE_SETUP
-#line 137 "glsl_lexer.lpp"
+#line 147 "glsl_lexer.lpp"
 {
 				   yylval->identifier = strdup(yytext);
 				   return IDENTIFIER;
@@ -1451,7 +1447,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 18:
 YY_RULE_SETUP
-#line 141 "glsl_lexer.lpp"
+#line 151 "glsl_lexer.lpp"
 {
 				    yylval->n = strtol(yytext, NULL, 10);
 				    return INTCONSTANT;
@@ -1460,283 +1456,283 @@ YY_RULE_SETUP
 case 19:
 /* rule 19 can match eol */
 YY_RULE_SETUP
-#line 145 "glsl_lexer.lpp"
+#line 155 "glsl_lexer.lpp"
 { BEGIN 0; yylineno++; yycolumn = 0; return EOL; }
 	YY_BREAK
 case 20:
 /* rule 20 can match eol */
 YY_RULE_SETUP
-#line 147 "glsl_lexer.lpp"
+#line 157 "glsl_lexer.lpp"
 { yylineno++; yycolumn = 0; }
 	YY_BREAK
 case 21:
 YY_RULE_SETUP
-#line 149 "glsl_lexer.lpp"
+#line 159 "glsl_lexer.lpp"
 return ATTRIBUTE;
 	YY_BREAK
 case 22:
 YY_RULE_SETUP
-#line 150 "glsl_lexer.lpp"
+#line 160 "glsl_lexer.lpp"
 return CONST_TOK;
 	YY_BREAK
 case 23:
 YY_RULE_SETUP
-#line 151 "glsl_lexer.lpp"
+#line 161 "glsl_lexer.lpp"
 return BOOL_TOK;
 	YY_BREAK
 case 24:
 YY_RULE_SETUP
-#line 152 "glsl_lexer.lpp"
+#line 162 "glsl_lexer.lpp"
 return FLOAT_TOK;
 	YY_BREAK
 case 25:
 YY_RULE_SETUP
-#line 153 "glsl_lexer.lpp"
+#line 163 "glsl_lexer.lpp"
 return INT_TOK;
 	YY_BREAK
 case 26:
 YY_RULE_SETUP
-#line 155 "glsl_lexer.lpp"
+#line 165 "glsl_lexer.lpp"
 return BREAK;
 	YY_BREAK
 case 27:
 YY_RULE_SETUP
-#line 156 "glsl_lexer.lpp"
+#line 166 "glsl_lexer.lpp"
 return CONTINUE;
 	YY_BREAK
 case 28:
 YY_RULE_SETUP
-#line 157 "glsl_lexer.lpp"
+#line 167 "glsl_lexer.lpp"
 return DO;
 	YY_BREAK
 case 29:
 YY_RULE_SETUP
-#line 158 "glsl_lexer.lpp"
+#line 168 "glsl_lexer.lpp"
 return WHILE;
 	YY_BREAK
 case 30:
 YY_RULE_SETUP
-#line 159 "glsl_lexer.lpp"
+#line 169 "glsl_lexer.lpp"
 return ELSE;
 	YY_BREAK
 case 31:
 YY_RULE_SETUP
-#line 160 "glsl_lexer.lpp"
+#line 170 "glsl_lexer.lpp"
 return FOR;
 	YY_BREAK
 case 32:
 YY_RULE_SETUP
-#line 161 "glsl_lexer.lpp"
+#line 171 "glsl_lexer.lpp"
 return IF;
 	YY_BREAK
 case 33:
 YY_RULE_SETUP
-#line 162 "glsl_lexer.lpp"
+#line 172 "glsl_lexer.lpp"
 return DISCARD;
 	YY_BREAK
 case 34:
 YY_RULE_SETUP
-#line 163 "glsl_lexer.lpp"
+#line 173 "glsl_lexer.lpp"
 return RETURN;
 	YY_BREAK
 case 35:
 YY_RULE_SETUP
-#line 165 "glsl_lexer.lpp"
+#line 175 "glsl_lexer.lpp"
 return BVEC2;
 	YY_BREAK
 case 36:
 YY_RULE_SETUP
-#line 166 "glsl_lexer.lpp"
+#line 176 "glsl_lexer.lpp"
 return BVEC3;
 	YY_BREAK
 case 37:
 YY_RULE_SETUP
-#line 167 "glsl_lexer.lpp"
+#line 177 "glsl_lexer.lpp"
 return BVEC4;
 	YY_BREAK
 case 38:
 YY_RULE_SETUP
-#line 168 "glsl_lexer.lpp"
+#line 178 "glsl_lexer.lpp"
 return IVEC2;
 	YY_BREAK
 case 39:
 YY_RULE_SETUP
-#line 169 "glsl_lexer.lpp"
+#line 179 "glsl_lexer.lpp"
 return IVEC3;
 	YY_BREAK
 case 40:
 YY_RULE_SETUP
-#line 170 "glsl_lexer.lpp"
+#line 180 "glsl_lexer.lpp"
 return IVEC4;
 	YY_BREAK
 case 41:
 YY_RULE_SETUP
-#line 171 "glsl_lexer.lpp"
+#line 181 "glsl_lexer.lpp"
 return VEC2;
 	YY_BREAK
 case 42:
 YY_RULE_SETUP
-#line 172 "glsl_lexer.lpp"
+#line 182 "glsl_lexer.lpp"
 return VEC3;
 	YY_BREAK
 case 43:
 YY_RULE_SETUP
-#line 173 "glsl_lexer.lpp"
+#line 183 "glsl_lexer.lpp"
 return VEC4;
 	YY_BREAK
 case 44:
 YY_RULE_SETUP
-#line 174 "glsl_lexer.lpp"
+#line 184 "glsl_lexer.lpp"
 return MAT2X2;
 	YY_BREAK
 case 45:
 YY_RULE_SETUP
-#line 175 "glsl_lexer.lpp"
+#line 185 "glsl_lexer.lpp"
 return MAT3X3;
 	YY_BREAK
 case 46:
 YY_RULE_SETUP
-#line 176 "glsl_lexer.lpp"
+#line 186 "glsl_lexer.lpp"
 return MAT4X4;
 	YY_BREAK
 case 47:
 YY_RULE_SETUP
-#line 177 "glsl_lexer.lpp"
+#line 187 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(120, MAT2X2);
 	YY_BREAK
 case 48:
 YY_RULE_SETUP
-#line 178 "glsl_lexer.lpp"
+#line 188 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(120, MAT2X3);
 	YY_BREAK
 case 49:
 YY_RULE_SETUP
-#line 179 "glsl_lexer.lpp"
+#line 189 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(120, MAT2X4);
 	YY_BREAK
 case 50:
 YY_RULE_SETUP
-#line 180 "glsl_lexer.lpp"
+#line 190 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(120, MAT3X2);
 	YY_BREAK
 case 51:
 YY_RULE_SETUP
-#line 181 "glsl_lexer.lpp"
+#line 191 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(120, MAT3X3);
 	YY_BREAK
 case 52:
 YY_RULE_SETUP
-#line 182 "glsl_lexer.lpp"
+#line 192 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(120, MAT3X4);
 	YY_BREAK
 case 53:
 YY_RULE_SETUP
-#line 183 "glsl_lexer.lpp"
+#line 193 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(120, MAT4X2);
 	YY_BREAK
 case 54:
 YY_RULE_SETUP
-#line 184 "glsl_lexer.lpp"
+#line 194 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(120, MAT4X3);
 	YY_BREAK
 case 55:
 YY_RULE_SETUP
-#line 185 "glsl_lexer.lpp"
+#line 195 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(120, MAT4X4);
 	YY_BREAK
 case 56:
 YY_RULE_SETUP
-#line 187 "glsl_lexer.lpp"
+#line 197 "glsl_lexer.lpp"
 return IN_TOK;
 	YY_BREAK
 case 57:
 YY_RULE_SETUP
-#line 188 "glsl_lexer.lpp"
+#line 198 "glsl_lexer.lpp"
 return OUT_TOK;
 	YY_BREAK
 case 58:
 YY_RULE_SETUP
-#line 189 "glsl_lexer.lpp"
+#line 199 "glsl_lexer.lpp"
 return INOUT_TOK;
 	YY_BREAK
 case 59:
 YY_RULE_SETUP
-#line 190 "glsl_lexer.lpp"
+#line 200 "glsl_lexer.lpp"
 return UNIFORM;
 	YY_BREAK
 case 60:
 YY_RULE_SETUP
-#line 191 "glsl_lexer.lpp"
+#line 201 "glsl_lexer.lpp"
 return VARYING;
 	YY_BREAK
 case 61:
 YY_RULE_SETUP
-#line 192 "glsl_lexer.lpp"
+#line 202 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(120, CENTROID);
 	YY_BREAK
 case 62:
 YY_RULE_SETUP
-#line 193 "glsl_lexer.lpp"
-TOKEN_OR_IDENTIFIER(120, INVARIANT);
+#line 203 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER_ES(120, INVARIANT);
 	YY_BREAK
 case 63:
 YY_RULE_SETUP
-#line 195 "glsl_lexer.lpp"
-TOKEN_OR_IDENTIFIER(130, FLAT);
+#line 205 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER_ES(130, FLAT);
 	YY_BREAK
 case 64:
 YY_RULE_SETUP
-#line 196 "glsl_lexer.lpp"
+#line 206 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, SMOOTH);
 	YY_BREAK
 case 65:
 YY_RULE_SETUP
-#line 197 "glsl_lexer.lpp"
+#line 207 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, NOPERSPECTIVE);
 	YY_BREAK
 case 66:
 YY_RULE_SETUP
-#line 199 "glsl_lexer.lpp"
+#line 209 "glsl_lexer.lpp"
 return SAMPLER1D;
 	YY_BREAK
 case 67:
 YY_RULE_SETUP
-#line 200 "glsl_lexer.lpp"
+#line 210 "glsl_lexer.lpp"
 return SAMPLER2D;
 	YY_BREAK
 case 68:
 YY_RULE_SETUP
-#line 201 "glsl_lexer.lpp"
+#line 211 "glsl_lexer.lpp"
 return SAMPLER3D;
 	YY_BREAK
 case 69:
 YY_RULE_SETUP
-#line 202 "glsl_lexer.lpp"
+#line 212 "glsl_lexer.lpp"
 return SAMPLERCUBE;
 	YY_BREAK
 case 70:
 YY_RULE_SETUP
-#line 203 "glsl_lexer.lpp"
+#line 213 "glsl_lexer.lpp"
 return SAMPLER1DSHADOW;
 	YY_BREAK
 case 71:
 YY_RULE_SETUP
-#line 204 "glsl_lexer.lpp"
+#line 214 "glsl_lexer.lpp"
 return SAMPLER2DSHADOW;
 	YY_BREAK
 case 72:
 YY_RULE_SETUP
-#line 206 "glsl_lexer.lpp"
+#line 216 "glsl_lexer.lpp"
 return STRUCT;
 	YY_BREAK
 case 73:
 YY_RULE_SETUP
-#line 207 "glsl_lexer.lpp"
+#line 217 "glsl_lexer.lpp"
 return VOID_TOK;
 	YY_BREAK
 case 74:
 YY_RULE_SETUP
-#line 209 "glsl_lexer.lpp"
+#line 219 "glsl_lexer.lpp"
 {
 		  if ((yyextra->language_version >= 140)
 		      || (yyextra->ARB_fragment_coord_conventions_enable)){
@@ -1749,102 +1745,102 @@ YY_RULE_SETUP
 	YY_BREAK
 case 75:
 YY_RULE_SETUP
-#line 219 "glsl_lexer.lpp"
+#line 229 "glsl_lexer.lpp"
 return INC_OP;
 	YY_BREAK
 case 76:
 YY_RULE_SETUP
-#line 220 "glsl_lexer.lpp"
+#line 230 "glsl_lexer.lpp"
 return DEC_OP;
 	YY_BREAK
 case 77:
 YY_RULE_SETUP
-#line 221 "glsl_lexer.lpp"
+#line 231 "glsl_lexer.lpp"
 return LE_OP;
 	YY_BREAK
 case 78:
 YY_RULE_SETUP
-#line 222 "glsl_lexer.lpp"
+#line 232 "glsl_lexer.lpp"
 return GE_OP;
 	YY_BREAK
 case 79:
 YY_RULE_SETUP
-#line 223 "glsl_lexer.lpp"
+#line 233 "glsl_lexer.lpp"
 return EQ_OP;
 	YY_BREAK
 case 80:
 YY_RULE_SETUP
-#line 224 "glsl_lexer.lpp"
+#line 234 "glsl_lexer.lpp"
 return NE_OP;
 	YY_BREAK
 case 81:
 YY_RULE_SETUP
-#line 225 "glsl_lexer.lpp"
+#line 235 "glsl_lexer.lpp"
 return AND_OP;
 	YY_BREAK
 case 82:
 YY_RULE_SETUP
-#line 226 "glsl_lexer.lpp"
+#line 236 "glsl_lexer.lpp"
 return OR_OP;
 	YY_BREAK
 case 83:
 YY_RULE_SETUP
-#line 227 "glsl_lexer.lpp"
+#line 237 "glsl_lexer.lpp"
 return XOR_OP;
 	YY_BREAK
 case 84:
 YY_RULE_SETUP
-#line 229 "glsl_lexer.lpp"
+#line 239 "glsl_lexer.lpp"
 return MUL_ASSIGN;
 	YY_BREAK
 case 85:
 YY_RULE_SETUP
-#line 230 "glsl_lexer.lpp"
+#line 240 "glsl_lexer.lpp"
 return DIV_ASSIGN;
 	YY_BREAK
 case 86:
 YY_RULE_SETUP
-#line 231 "glsl_lexer.lpp"
+#line 241 "glsl_lexer.lpp"
 return ADD_ASSIGN;
 	YY_BREAK
 case 87:
 YY_RULE_SETUP
-#line 232 "glsl_lexer.lpp"
+#line 242 "glsl_lexer.lpp"
 return MOD_ASSIGN;
 	YY_BREAK
 case 88:
 YY_RULE_SETUP
-#line 233 "glsl_lexer.lpp"
+#line 243 "glsl_lexer.lpp"
 return LEFT_ASSIGN;
 	YY_BREAK
 case 89:
 YY_RULE_SETUP
-#line 234 "glsl_lexer.lpp"
+#line 244 "glsl_lexer.lpp"
 return RIGHT_ASSIGN;
 	YY_BREAK
 case 90:
 YY_RULE_SETUP
-#line 235 "glsl_lexer.lpp"
+#line 245 "glsl_lexer.lpp"
 return AND_ASSIGN;
 	YY_BREAK
 case 91:
 YY_RULE_SETUP
-#line 236 "glsl_lexer.lpp"
+#line 246 "glsl_lexer.lpp"
 return XOR_ASSIGN;
 	YY_BREAK
 case 92:
 YY_RULE_SETUP
-#line 237 "glsl_lexer.lpp"
+#line 247 "glsl_lexer.lpp"
 return OR_ASSIGN;
 	YY_BREAK
 case 93:
 YY_RULE_SETUP
-#line 238 "glsl_lexer.lpp"
+#line 248 "glsl_lexer.lpp"
 return SUB_ASSIGN;
 	YY_BREAK
 case 94:
 YY_RULE_SETUP
-#line 240 "glsl_lexer.lpp"
+#line 250 "glsl_lexer.lpp"
 {
 			    yylval->n = strtol(yytext, NULL, 10);
 			    return INTCONSTANT;
@@ -1852,7 +1848,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 95:
 YY_RULE_SETUP
-#line 244 "glsl_lexer.lpp"
+#line 254 "glsl_lexer.lpp"
 {
 			    yylval->n = strtol(yytext + 2, NULL, 16);
 			    return INTCONSTANT;
@@ -1860,7 +1856,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 96:
 YY_RULE_SETUP
-#line 248 "glsl_lexer.lpp"
+#line 258 "glsl_lexer.lpp"
 {
 			    yylval->n = strtol(yytext, NULL, 8);
 			    return INTCONSTANT;
@@ -1868,7 +1864,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 97:
 YY_RULE_SETUP
-#line 253 "glsl_lexer.lpp"
+#line 263 "glsl_lexer.lpp"
 {
 			    yylval->real = strtod(yytext, NULL);
 			    return FLOATCONSTANT;
@@ -1876,7 +1872,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 98:
 YY_RULE_SETUP
-#line 257 "glsl_lexer.lpp"
+#line 267 "glsl_lexer.lpp"
 {
 			    yylval->real = strtod(yytext, NULL);
 			    return FLOATCONSTANT;
@@ -1884,7 +1880,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 99:
 YY_RULE_SETUP
-#line 261 "glsl_lexer.lpp"
+#line 271 "glsl_lexer.lpp"
 {
 			    yylval->real = strtod(yytext, NULL);
 			    return FLOATCONSTANT;
@@ -1892,7 +1888,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 100:
 YY_RULE_SETUP
-#line 265 "glsl_lexer.lpp"
+#line 275 "glsl_lexer.lpp"
 {
 			    yylval->real = strtod(yytext, NULL);
 			    return FLOATCONSTANT;
@@ -1900,7 +1896,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 101:
 YY_RULE_SETUP
-#line 269 "glsl_lexer.lpp"
+#line 279 "glsl_lexer.lpp"
 {
 			    yylval->real = strtod(yytext, NULL);
 			    return FLOATCONSTANT;
@@ -1908,7 +1904,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 102:
 YY_RULE_SETUP
-#line 274 "glsl_lexer.lpp"
+#line 284 "glsl_lexer.lpp"
 {
 			    yylval->n = 1;
 			    return BOOLCONSTANT;
@@ -1916,7 +1912,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 103:
 YY_RULE_SETUP
-#line 278 "glsl_lexer.lpp"
+#line 288 "glsl_lexer.lpp"
 {
 			    yylval->n = 0;
 			    return BOOLCONSTANT;
@@ -1925,394 +1921,394 @@ YY_RULE_SETUP
 /* Reserved words in GLSL 1.10. */
 case 104:
 YY_RULE_SETUP
-#line 285 "glsl_lexer.lpp"
+#line 295 "glsl_lexer.lpp"
 RESERVED_WORD(999, ASM);
 	YY_BREAK
 case 105:
 YY_RULE_SETUP
-#line 286 "glsl_lexer.lpp"
+#line 296 "glsl_lexer.lpp"
 RESERVED_WORD(999, CLASS);
 	YY_BREAK
 case 106:
 YY_RULE_SETUP
-#line 287 "glsl_lexer.lpp"
+#line 297 "glsl_lexer.lpp"
 RESERVED_WORD(999, UNION);
 	YY_BREAK
 case 107:
 YY_RULE_SETUP
-#line 288 "glsl_lexer.lpp"
+#line 298 "glsl_lexer.lpp"
 RESERVED_WORD(999, ENUM);
 	YY_BREAK
 case 108:
 YY_RULE_SETUP
-#line 289 "glsl_lexer.lpp"
+#line 299 "glsl_lexer.lpp"
 RESERVED_WORD(999, TYPEDEF);
 	YY_BREAK
 case 109:
 YY_RULE_SETUP
-#line 290 "glsl_lexer.lpp"
+#line 300 "glsl_lexer.lpp"
 RESERVED_WORD(999, TEMPLATE);
 	YY_BREAK
 case 110:
 YY_RULE_SETUP
-#line 291 "glsl_lexer.lpp"
+#line 301 "glsl_lexer.lpp"
 RESERVED_WORD(999, THIS);
 	YY_BREAK
 case 111:
 YY_RULE_SETUP
-#line 292 "glsl_lexer.lpp"
+#line 302 "glsl_lexer.lpp"
 RESERVED_WORD(999, PACKED_TOK);
 	YY_BREAK
 case 112:
 YY_RULE_SETUP
-#line 293 "glsl_lexer.lpp"
+#line 303 "glsl_lexer.lpp"
 RESERVED_WORD(999, GOTO);
 	YY_BREAK
 case 113:
 YY_RULE_SETUP
-#line 294 "glsl_lexer.lpp"
+#line 304 "glsl_lexer.lpp"
 RESERVED_WORD(130, SWITCH);
 	YY_BREAK
 case 114:
 YY_RULE_SETUP
-#line 295 "glsl_lexer.lpp"
+#line 305 "glsl_lexer.lpp"
 RESERVED_WORD(130, DEFAULT);
 	YY_BREAK
 case 115:
 YY_RULE_SETUP
-#line 296 "glsl_lexer.lpp"
+#line 306 "glsl_lexer.lpp"
 RESERVED_WORD(999, INLINE_TOK);
 	YY_BREAK
 case 116:
 YY_RULE_SETUP
-#line 297 "glsl_lexer.lpp"
+#line 307 "glsl_lexer.lpp"
 RESERVED_WORD(999, NOINLINE);
 	YY_BREAK
 case 117:
 YY_RULE_SETUP
-#line 298 "glsl_lexer.lpp"
+#line 308 "glsl_lexer.lpp"
 RESERVED_WORD(999, VOLATILE);
 	YY_BREAK
 case 118:
 YY_RULE_SETUP
-#line 299 "glsl_lexer.lpp"
+#line 309 "glsl_lexer.lpp"
 RESERVED_WORD(999, PUBLIC_TOK);
 	YY_BREAK
 case 119:
 YY_RULE_SETUP
-#line 300 "glsl_lexer.lpp"
+#line 310 "glsl_lexer.lpp"
 RESERVED_WORD(999, STATIC);
 	YY_BREAK
 case 120:
 YY_RULE_SETUP
-#line 301 "glsl_lexer.lpp"
+#line 311 "glsl_lexer.lpp"
 RESERVED_WORD(999, EXTERN);
 	YY_BREAK
 case 121:
 YY_RULE_SETUP
-#line 302 "glsl_lexer.lpp"
+#line 312 "glsl_lexer.lpp"
 RESERVED_WORD(999, EXTERNAL);
 	YY_BREAK
 case 122:
 YY_RULE_SETUP
-#line 303 "glsl_lexer.lpp"
+#line 313 "glsl_lexer.lpp"
 RESERVED_WORD(999, INTERFACE);
 	YY_BREAK
 case 123:
 YY_RULE_SETUP
-#line 304 "glsl_lexer.lpp"
+#line 314 "glsl_lexer.lpp"
 RESERVED_WORD(999, LONG_TOK);
 	YY_BREAK
 case 124:
 YY_RULE_SETUP
-#line 305 "glsl_lexer.lpp"
+#line 315 "glsl_lexer.lpp"
 RESERVED_WORD(999, SHORT_TOK);
 	YY_BREAK
 case 125:
 YY_RULE_SETUP
-#line 306 "glsl_lexer.lpp"
+#line 316 "glsl_lexer.lpp"
 RESERVED_WORD(999, DOUBLE_TOK);
 	YY_BREAK
 case 126:
 YY_RULE_SETUP
-#line 307 "glsl_lexer.lpp"
+#line 317 "glsl_lexer.lpp"
 RESERVED_WORD(999, HALF);
 	YY_BREAK
 case 127:
 YY_RULE_SETUP
-#line 308 "glsl_lexer.lpp"
+#line 318 "glsl_lexer.lpp"
 RESERVED_WORD(999, FIXED_TOK);
 	YY_BREAK
 case 128:
 YY_RULE_SETUP
-#line 309 "glsl_lexer.lpp"
+#line 319 "glsl_lexer.lpp"
 RESERVED_WORD(999, UNSIGNED);
 	YY_BREAK
 case 129:
 YY_RULE_SETUP
-#line 310 "glsl_lexer.lpp"
+#line 320 "glsl_lexer.lpp"
 RESERVED_WORD(999, INPUT_TOK);
 	YY_BREAK
 case 130:
 YY_RULE_SETUP
-#line 311 "glsl_lexer.lpp"
+#line 321 "glsl_lexer.lpp"
 RESERVED_WORD(999, OUTPUT);
 	YY_BREAK
 case 131:
 YY_RULE_SETUP
-#line 312 "glsl_lexer.lpp"
+#line 322 "glsl_lexer.lpp"
 RESERVED_WORD(999, HVEC2);
 	YY_BREAK
 case 132:
 YY_RULE_SETUP
-#line 313 "glsl_lexer.lpp"
+#line 323 "glsl_lexer.lpp"
 RESERVED_WORD(999, HVEC3);
 	YY_BREAK
 case 133:
 YY_RULE_SETUP
-#line 314 "glsl_lexer.lpp"
+#line 324 "glsl_lexer.lpp"
 RESERVED_WORD(999, HVEC4);
 	YY_BREAK
 case 134:
 YY_RULE_SETUP
-#line 315 "glsl_lexer.lpp"
+#line 325 "glsl_lexer.lpp"
 RESERVED_WORD(999, DVEC2);
 	YY_BREAK
 case 135:
 YY_RULE_SETUP
-#line 316 "glsl_lexer.lpp"
+#line 326 "glsl_lexer.lpp"
 RESERVED_WORD(999, DVEC3);
 	YY_BREAK
 case 136:
 YY_RULE_SETUP
-#line 317 "glsl_lexer.lpp"
+#line 327 "glsl_lexer.lpp"
 RESERVED_WORD(999, DVEC4);
 	YY_BREAK
 case 137:
 YY_RULE_SETUP
-#line 318 "glsl_lexer.lpp"
+#line 328 "glsl_lexer.lpp"
 RESERVED_WORD(999, FVEC2);
 	YY_BREAK
 case 138:
 YY_RULE_SETUP
-#line 319 "glsl_lexer.lpp"
+#line 329 "glsl_lexer.lpp"
 RESERVED_WORD(999, FVEC3);
 	YY_BREAK
 case 139:
 YY_RULE_SETUP
-#line 320 "glsl_lexer.lpp"
+#line 330 "glsl_lexer.lpp"
 RESERVED_WORD(999, FVEC4);
 	YY_BREAK
 case 140:
 YY_RULE_SETUP
-#line 321 "glsl_lexer.lpp"
+#line 331 "glsl_lexer.lpp"
 return SAMPLER2DRECT;
 	YY_BREAK
 case 141:
 YY_RULE_SETUP
-#line 322 "glsl_lexer.lpp"
+#line 332 "glsl_lexer.lpp"
 RESERVED_WORD(999, SAMPLER3DRECT);
 	YY_BREAK
 case 142:
 YY_RULE_SETUP
-#line 323 "glsl_lexer.lpp"
+#line 333 "glsl_lexer.lpp"
 return SAMPLER2DRECTSHADOW;
 	YY_BREAK
 case 143:
 YY_RULE_SETUP
-#line 324 "glsl_lexer.lpp"
+#line 334 "glsl_lexer.lpp"
 RESERVED_WORD(999, SIZEOF);
 	YY_BREAK
 case 144:
 YY_RULE_SETUP
-#line 325 "glsl_lexer.lpp"
+#line 335 "glsl_lexer.lpp"
 RESERVED_WORD(999, CAST);
 	YY_BREAK
 case 145:
 YY_RULE_SETUP
-#line 326 "glsl_lexer.lpp"
+#line 336 "glsl_lexer.lpp"
 RESERVED_WORD(999, NAMESPACE);
 	YY_BREAK
 case 146:
 YY_RULE_SETUP
-#line 327 "glsl_lexer.lpp"
+#line 337 "glsl_lexer.lpp"
 RESERVED_WORD(999, USING);
 	YY_BREAK
 /* Additional reserved words in GLSL 1.20. */
 case 147:
 YY_RULE_SETUP
-#line 330 "glsl_lexer.lpp"
-TOKEN_OR_IDENTIFIER(120, LOWP);
+#line 340 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER_ES(120, LOWP);
 	YY_BREAK
 case 148:
 YY_RULE_SETUP
-#line 331 "glsl_lexer.lpp"
-TOKEN_OR_IDENTIFIER(120, MEDIUMP);
+#line 341 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER_ES(120, MEDIUMP);
 	YY_BREAK
 case 149:
 YY_RULE_SETUP
-#line 332 "glsl_lexer.lpp"
-TOKEN_OR_IDENTIFIER(120, HIGHP);
+#line 342 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER_ES(120, HIGHP);
 	YY_BREAK
 case 150:
 YY_RULE_SETUP
-#line 333 "glsl_lexer.lpp"
-TOKEN_OR_IDENTIFIER(120, PRECISION);
+#line 343 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER_ES(120, PRECISION);
 	YY_BREAK
 /* Additional reserved words in GLSL 1.30. */
 case 151:
 YY_RULE_SETUP
-#line 336 "glsl_lexer.lpp"
+#line 346 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, COMMON);
 	YY_BREAK
 case 152:
 YY_RULE_SETUP
-#line 337 "glsl_lexer.lpp"
+#line 347 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, PARTITION);
 	YY_BREAK
 case 153:
 YY_RULE_SETUP
-#line 338 "glsl_lexer.lpp"
+#line 348 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, ACTIVE);
 	YY_BREAK
 case 154:
 YY_RULE_SETUP
-#line 339 "glsl_lexer.lpp"
-TOKEN_OR_IDENTIFIER(130, SUPERP);
+#line 349 "glsl_lexer.lpp"
+TOKEN_OR_IDENTIFIER_ES(130, SUPERP);
 	YY_BREAK
 case 155:
 YY_RULE_SETUP
-#line 340 "glsl_lexer.lpp"
+#line 350 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, SAMPLERBUFFER);
 	YY_BREAK
 case 156:
 YY_RULE_SETUP
-#line 341 "glsl_lexer.lpp"
+#line 351 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, FILTER);
 	YY_BREAK
 case 157:
 YY_RULE_SETUP
-#line 342 "glsl_lexer.lpp"
+#line 352 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, IMAGE1D);
 	YY_BREAK
 case 158:
 YY_RULE_SETUP
-#line 343 "glsl_lexer.lpp"
+#line 353 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, IMAGE2D);
 	YY_BREAK
 case 159:
 YY_RULE_SETUP
-#line 344 "glsl_lexer.lpp"
+#line 354 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, IMAGE3D);
 	YY_BREAK
 case 160:
 YY_RULE_SETUP
-#line 345 "glsl_lexer.lpp"
+#line 355 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, IMAGECUBE);
 	YY_BREAK
 case 161:
 YY_RULE_SETUP
-#line 346 "glsl_lexer.lpp"
+#line 356 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, IIMAGE1D);
 	YY_BREAK
 case 162:
 YY_RULE_SETUP
-#line 347 "glsl_lexer.lpp"
+#line 357 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, IIMAGE2D);
 	YY_BREAK
 case 163:
 YY_RULE_SETUP
-#line 348 "glsl_lexer.lpp"
+#line 358 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, IIMAGE3D);
 	YY_BREAK
 case 164:
 YY_RULE_SETUP
-#line 349 "glsl_lexer.lpp"
+#line 359 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, IIMAGECUBE);
 	YY_BREAK
 case 165:
 YY_RULE_SETUP
-#line 350 "glsl_lexer.lpp"
+#line 360 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, UIMAGE1D);
 	YY_BREAK
 case 166:
 YY_RULE_SETUP
-#line 351 "glsl_lexer.lpp"
+#line 361 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, UIMAGE2D);
 	YY_BREAK
 case 167:
 YY_RULE_SETUP
-#line 352 "glsl_lexer.lpp"
+#line 362 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, UIMAGE3D);
 	YY_BREAK
 case 168:
 YY_RULE_SETUP
-#line 353 "glsl_lexer.lpp"
+#line 363 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, UIMAGECUBE);
 	YY_BREAK
 case 169:
 YY_RULE_SETUP
-#line 354 "glsl_lexer.lpp"
+#line 364 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, IMAGE1DARRAY);
 	YY_BREAK
 case 170:
 YY_RULE_SETUP
-#line 355 "glsl_lexer.lpp"
+#line 365 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, IMAGE2DARRAY);
 	YY_BREAK
 case 171:
 YY_RULE_SETUP
-#line 356 "glsl_lexer.lpp"
+#line 366 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, IIMAGE1DARRAY);
 	YY_BREAK
 case 172:
 YY_RULE_SETUP
-#line 357 "glsl_lexer.lpp"
+#line 367 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, IIMAGE2DARRAY);
 	YY_BREAK
 case 173:
 YY_RULE_SETUP
-#line 358 "glsl_lexer.lpp"
+#line 368 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, UIMAGE1DARRAY);
 	YY_BREAK
 case 174:
 YY_RULE_SETUP
-#line 359 "glsl_lexer.lpp"
+#line 369 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, UIMAGE2DARRAY);
 	YY_BREAK
 case 175:
 YY_RULE_SETUP
-#line 360 "glsl_lexer.lpp"
+#line 370 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, IMAGE1DSHADOW);
 	YY_BREAK
 case 176:
 YY_RULE_SETUP
-#line 361 "glsl_lexer.lpp"
+#line 371 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, IMAGE2DSHADOW);
 	YY_BREAK
 case 177:
 YY_RULE_SETUP
-#line 362 "glsl_lexer.lpp"
+#line 372 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, IMAGEBUFFER);
 	YY_BREAK
 case 178:
 YY_RULE_SETUP
-#line 363 "glsl_lexer.lpp"
+#line 373 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, IIMAGEBUFFER);
 	YY_BREAK
 case 179:
 YY_RULE_SETUP
-#line 364 "glsl_lexer.lpp"
+#line 374 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, UIMAGEBUFFER);
 	YY_BREAK
 case 180:
 YY_RULE_SETUP
-#line 365 "glsl_lexer.lpp"
+#line 375 "glsl_lexer.lpp"
 TOKEN_OR_IDENTIFIER(130, ROW_MAJOR);
 	YY_BREAK
 case 181:
 YY_RULE_SETUP
-#line 367 "glsl_lexer.lpp"
+#line 377 "glsl_lexer.lpp"
 {
 			    struct _mesa_glsl_parse_state *state = yyextra;
 			    void *ctx = state;	
@@ -2322,15 +2318,15 @@ YY_RULE_SETUP
 	YY_BREAK
 case 182:
 YY_RULE_SETUP
-#line 374 "glsl_lexer.lpp"
+#line 384 "glsl_lexer.lpp"
 { return yytext[0]; }
 	YY_BREAK
 case 183:
 YY_RULE_SETUP
-#line 376 "glsl_lexer.lpp"
+#line 386 "glsl_lexer.lpp"
 ECHO;
 	YY_BREAK
-#line 2334 "glsl_lexer.cpp"
+#line 2330 "glsl_lexer.cpp"
 case YY_STATE_EOF(INITIAL):
 case YY_STATE_EOF(PP):
 case YY_STATE_EOF(PRAGMA):
@@ -3066,8 +3062,8 @@ YY_BUFFER_STATE _mesa_glsl__scan_string (yyconst char * yystr , yyscan_t yyscann
 
 /** Setup the input buffer state to scan the given bytes. The next call to _mesa_glsl_lex() will
  * scan from a @e copy of @a bytes.
- * @param yybytes the byte buffer to scan
- * @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes.
+ * @param bytes the byte buffer to scan
+ * @param len the number of bytes in the buffer pointed to by @a bytes.
  * @param yyscanner The scanner object.
  * @return the newly allocated buffer state object.
  */
@@ -3473,7 +3469,7 @@ void _mesa_glsl_free (void * ptr , yyscan_t yyscanner)
 
 #define YYTABLES_NAME "yytables"
 
-#line 376 "glsl_lexer.lpp"
+#line 386 "glsl_lexer.lpp"
 
 
 
diff --git a/src/glsl/glsl_lexer.lpp b/src/glsl/glsl_lexer.lpp
index 1de1fb4cf7..ed3cb251a1 100644
--- a/src/glsl/glsl_lexer.lpp
+++ b/src/glsl/glsl_lexer.lpp
@@ -46,6 +46,16 @@
       }								 \
    } while (0)
 
+/* Handle reserved words in GLSL ES (version 100) */
+#define TOKEN_OR_IDENTIFIER_ES(version, token)			\
+   do {								\
+      if (yyextra->es_shader) {					\
+	return token;						\
+      } else {							\
+	TOKEN_OR_IDENTIFIER(version, token);			\
+      }								\
+   } while (0)
+
 #define RESERVED_WORD(version, token)					\
    do {									\
       if (yyextra->language_version >= version) {			\
@@ -190,9 +200,9 @@ inout		return INOUT_TOK;
 uniform		return UNIFORM;
 varying		return VARYING;
 centroid	TOKEN_OR_IDENTIFIER(120, CENTROID);
-invariant	TOKEN_OR_IDENTIFIER(120, INVARIANT);
+invariant	TOKEN_OR_IDENTIFIER_ES(120, INVARIANT);
 
-flat		TOKEN_OR_IDENTIFIER(130, FLAT);
+flat		TOKEN_OR_IDENTIFIER_ES(130, FLAT);
 smooth		TOKEN_OR_IDENTIFIER(130, SMOOTH);
 noperspective	TOKEN_OR_IDENTIFIER(130, NOPERSPECTIVE);
 
@@ -327,16 +337,16 @@ namespace	RESERVED_WORD(999, NAMESPACE);
 using		RESERVED_WORD(999, USING);
 
     /* Additional reserved words in GLSL 1.20. */
-lowp		TOKEN_OR_IDENTIFIER(120, LOWP);
-mediump		TOKEN_OR_IDENTIFIER(120, MEDIUMP);
-highp		TOKEN_OR_IDENTIFIER(120, HIGHP);
-precision	TOKEN_OR_IDENTIFIER(120, PRECISION);
+lowp		TOKEN_OR_IDENTIFIER_ES(120, LOWP);
+mediump		TOKEN_OR_IDENTIFIER_ES(120, MEDIUMP);
+highp		TOKEN_OR_IDENTIFIER_ES(120, HIGHP);
+precision	TOKEN_OR_IDENTIFIER_ES(120, PRECISION);
 
     /* Additional reserved words in GLSL 1.30. */
 common		TOKEN_OR_IDENTIFIER(130, COMMON);
 partition	TOKEN_OR_IDENTIFIER(130, PARTITION);
 active		TOKEN_OR_IDENTIFIER(130, ACTIVE);
-superp		TOKEN_OR_IDENTIFIER(130, SUPERP);
+superp		TOKEN_OR_IDENTIFIER_ES(130, SUPERP);
 samplerBuffer	TOKEN_OR_IDENTIFIER(130, SAMPLERBUFFER);
 filter		TOKEN_OR_IDENTIFIER(130, FILTER);
 image1D		TOKEN_OR_IDENTIFIER(130, IMAGE1D);
diff --git a/src/glsl/glsl_parser.cpp b/src/glsl/glsl_parser.cpp
index 8eae6b4210..301c221892 100644
--- a/src/glsl/glsl_parser.cpp
+++ b/src/glsl/glsl_parser.cpp
@@ -4529,16 +4529,16 @@ yyreduce:
 /* Line 1464 of yacc.c  */
 #line 1152 "glsl_parser.ypp"
     {
-			   if (state->language_version < 130)
-			      _mesa_glsl_error(& (yylsp[(1) - (1)]), state,
-					       "precision qualifier forbidden "
-					       "in GLSL %d.%d (1.30 or later "
-					       "required)\n",
-					       state->language_version / 100,
-					       state->language_version % 100);
+		     if (!state->es_shader && state->language_version < 130)
+			_mesa_glsl_error(& (yylsp[(1) - (1)]), state,
+				         "precision qualifier forbidden "
+					 "in GLSL %d.%d (1.30 or later "
+					 "required)\n",
+					 state->language_version / 100,
+					 state->language_version % 100);
 
-			   (yyval.n) = ast_precision_high;
-			;}
+		     (yyval.n) = ast_precision_high;
+		  ;}
     break;
 
   case 217:
@@ -4546,16 +4546,16 @@ yyreduce:
 /* Line 1464 of yacc.c  */
 #line 1163 "glsl_parser.ypp"
     {
-			   if (state->language_version < 130)
-			      _mesa_glsl_error(& (yylsp[(1) - (1)]), state,
-					       "precision qualifier forbidden "
-					       "in GLSL %d.%d (1.30 or later "
-					       "required)\n",
-					       state->language_version / 100,
-					       state->language_version % 100);
+		     if (!state->es_shader && state->language_version < 130)
+			_mesa_glsl_error(& (yylsp[(1) - (1)]), state,
+					 "precision qualifier forbidden "
+					 "in GLSL %d.%d (1.30 or later "
+					 "required)\n",
+					 state->language_version / 100,
+					 state->language_version % 100);
 
-			   (yyval.n) = ast_precision_medium;
-			;}
+		     (yyval.n) = ast_precision_medium;
+		  ;}
     break;
 
   case 218:
@@ -4563,16 +4563,16 @@ yyreduce:
 /* Line 1464 of yacc.c  */
 #line 1174 "glsl_parser.ypp"
     {
-			   if (state->language_version < 130)
-			      _mesa_glsl_error(& (yylsp[(1) - (1)]), state,
-					       "precision qualifier forbidden "
-					       "in GLSL %d.%d (1.30 or later "
-					       "required)\n",
-					       state->language_version / 100,
-					       state->language_version % 100);
+		     if (!state->es_shader && state->language_version < 130)
+			_mesa_glsl_error(& (yylsp[(1) - (1)]), state,
+					 "precision qualifier forbidden "
+					 "in GLSL %d.%d (1.30 or later "
+					 "required)\n",
+					 state->language_version / 100,
+					 state->language_version % 100);
 
-			   (yyval.n) = ast_precision_low;
-			;}
+		     (yyval.n) = ast_precision_low;
+		  ;}
     break;
 
   case 219:
diff --git a/src/glsl/glsl_parser.ypp b/src/glsl/glsl_parser.ypp
index 594e445930..0df1e480ce 100644
--- a/src/glsl/glsl_parser.ypp
+++ b/src/glsl/glsl_parser.ypp
@@ -1149,39 +1149,39 @@ basic_type_specifier_nonarray:
 	;
 
 precision_qualifier:
-	HIGHP		{
-			   if (state->language_version < 130)
-			      _mesa_glsl_error(& @1, state,
-					       "precision qualifier forbidden "
-					       "in GLSL %d.%d (1.30 or later "
-					       "required)\n",
-					       state->language_version / 100,
-					       state->language_version % 100);
-
-			   $$ = ast_precision_high;
-			}
-	| MEDIUMP	{
-			   if (state->language_version < 130)
-			      _mesa_glsl_error(& @1, state,
-					       "precision qualifier forbidden "
-					       "in GLSL %d.%d (1.30 or later "
-					       "required)\n",
-					       state->language_version / 100,
-					       state->language_version % 100);
-
-			   $$ = ast_precision_medium;
-			}
-	| LOWP		{
-			   if (state->language_version < 130)
-			      _mesa_glsl_error(& @1, state,
-					       "precision qualifier forbidden "
-					       "in GLSL %d.%d (1.30 or later "
-					       "required)\n",
-					       state->language_version / 100,
-					       state->language_version % 100);
-
-			   $$ = ast_precision_low;
-			}
+	HIGHP	  {
+		     if (!state->es_shader && state->language_version < 130)
+			_mesa_glsl_error(& @1, state,
+				         "precision qualifier forbidden "
+					 "in GLSL %d.%d (1.30 or later "
+					 "required)\n",
+					 state->language_version / 100,
+					 state->language_version % 100);
+
+		     $$ = ast_precision_high;
+		  }
+	| MEDIUMP {
+		     if (!state->es_shader && state->language_version < 130)
+			_mesa_glsl_error(& @1, state,
+					 "precision qualifier forbidden "
+					 "in GLSL %d.%d (1.30 or later "
+					 "required)\n",
+					 state->language_version / 100,
+					 state->language_version % 100);
+
+		     $$ = ast_precision_medium;
+		  }
+	| LOWP	  {
+		     if (!state->es_shader && state->language_version < 130)
+			_mesa_glsl_error(& @1, state,
+					 "precision qualifier forbidden "
+					 "in GLSL %d.%d (1.30 or later "
+					 "required)\n",
+					 state->language_version / 100,
+					 state->language_version % 100);
+
+		     $$ = ast_precision_low;
+		  }
 	;
 
 struct_specifier: