xserver pixman mesa git update 4 nov 2011

1 files changed, 505 insertions, 457 deletions

diff --git a/mesalib/src/glsl/glsl_lexer.ll b/mesalib/src/glsl/glsl_lexer.ll
index 267ca0f1c..49f3bc82e 100644
--- a/mesalib/src/glsl/glsl_lexer.ll
+++ b/mesalib/src/glsl/glsl_lexer.ll
@@ -1,457 +1,505 @@
-%{

-/*

- * 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 <ctype.h>

-#include "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 *);

-

-#ifdef _MSC_VER

-#define YY_NO_UNISTD_H

-#endif

-

-#define YY_USER_ACTION						\

-   do {								\

-      yylloc->source = 0;					\

-      yylloc->first_column = yycolumn + 1;			\

-      yylloc->first_line = yylineno + 1;			\

-      yycolumn += yyleng;					\

-   } while(0);

-

-#define YY_USER_INIT yylineno = 0; yycolumn = 0;

-

-#define IS_UINT (yytext[yyleng - 1] == 'u' || yytext[yyleng - 1] == 'U')

-

-/* 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.

- *

- * For example, consider the following lexer rule:

- * samplerBuffer       KEYWORD(130, 140, 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

- */

-#define KEYWORD(reserved_version, allowed_version, token)		\

-   do {									\

-      if (yyextra->language_version >= allowed_version) {		\

-	 return token;							\

-      } else if (yyextra->language_version >= reserved_version) {	\

-	 _mesa_glsl_error(yylloc, yyextra,				\

-			  "Illegal use of reserved word `%s'", yytext);	\

-	 return ERROR_TOK;						\

-      } else {								\

-	 yylval->identifier = strdup(yytext);				\

-	 return classify_identifier(yyextra, yytext);			\

-      }									\

-   } while (0)

-

-/* The ES macro can be used in KEYWORD checks:

- *

- *    word      KEYWORD(110 || ES, 400, TOKEN)

- * ...means the word is reserved in GLSL ES 1.00, while

- *

- *    word      KEYWORD(110, 130 || ES, TOKEN)

- * ...means the word is a legal keyword in GLSL ES 1.00.

- */

-#define ES yyextra->es_shader

-%}

-

-%option bison-bridge bison-locations reentrant noyywrap

-%option nounput noyy_top_state

-%option never-interactive

-%option prefix="_mesa_glsl_"

-%option extra-type="struct _mesa_glsl_parse_state *"

-

-%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; }

-^[ \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;

-				   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;

-				}

-^{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; }

-

-<PRAGMA>\n			{ BEGIN 0; yylineno++; yycolumn = 0; }

-<PRAGMA>.			{ }

-

-<PP>\/\/[^\n]*			{ }

-<PP>[ \t\r]*			{ }

-<PP>:				return COLON;

-<PP>[_a-zA-Z][_a-zA-Z0-9]*	{

-				   yylval->identifier = strdup(yytext);

-				   return IDENTIFIER;

-				}

-<PP>[1-9][0-9]*			{

-				    yylval->n = strtol(yytext, NULL, 10);

-				    return INTCONSTANT;

-				}

-<PP>\n				{ BEGIN 0; yylineno++; yycolumn = 0; return EOL; }

-

-\n		{ yylineno++; yycolumn = 0; }

-

-attribute	return ATTRIBUTE;

-const		return CONST_TOK;

-bool		return BOOL_TOK;

-float		return FLOAT_TOK;

-int		return INT_TOK;

-uint		KEYWORD(130, 130, UINT_TOK);

-

-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		return BVEC2;

-bvec3		return BVEC3;

-bvec4		return BVEC4;

-ivec2		return IVEC2;

-ivec3		return IVEC3;

-ivec4		return IVEC4;

-uvec2		KEYWORD(130, 130, UVEC2);

-uvec3		KEYWORD(130, 130, UVEC3);

-uvec4		KEYWORD(130, 130, UVEC4);

-vec2		return VEC2;

-vec3		return VEC3;

-vec4		return VEC4;

-mat2		return MAT2X2;

-mat3		return MAT3X3;

-mat4		return MAT4X4;

-mat2x2		KEYWORD(120, 120, MAT2X2);

-mat2x3		KEYWORD(120, 120, MAT2X3);

-mat2x4		KEYWORD(120, 120, MAT2X4);

-mat3x2		KEYWORD(120, 120, MAT3X2);

-mat3x3		KEYWORD(120, 120, MAT3X3);

-mat3x4		KEYWORD(120, 120, MAT3X4);

-mat4x2		KEYWORD(120, 120, MAT4X2);

-mat4x3		KEYWORD(120, 120, MAT4X3);

-mat4x4		KEYWORD(120, 120, MAT4X4);

-

-in		return IN_TOK;

-out		return OUT_TOK;

-inout		return INOUT_TOK;

-uniform		return UNIFORM;

-varying		return VARYING;

-centroid	KEYWORD(120, 120, CENTROID);

-invariant	KEYWORD(120 || ES, 120 || ES, INVARIANT);

-flat		KEYWORD(130 || ES, 130, FLAT);

-smooth		KEYWORD(130, 130, SMOOTH);

-noperspective	KEYWORD(130, 130, NOPERSPECTIVE);

-

-sampler1D	return SAMPLER1D;

-sampler2D	return SAMPLER2D;

-sampler3D	return SAMPLER3D;

-samplerCube	return SAMPLERCUBE;

-sampler1DArray	KEYWORD(130, 130, SAMPLER1DARRAY);

-sampler2DArray	KEYWORD(130, 130, SAMPLER2DARRAY);

-sampler1DShadow	return SAMPLER1DSHADOW;

-sampler2DShadow	return SAMPLER2DSHADOW;

-samplerCubeShadow	KEYWORD(130, 130, SAMPLERCUBESHADOW);

-sampler1DArrayShadow	KEYWORD(130, 130, SAMPLER1DARRAYSHADOW);

-sampler2DArrayShadow	KEYWORD(130, 130, SAMPLER2DARRAYSHADOW);

-isampler1D		KEYWORD(130, 130, ISAMPLER1D);

-isampler2D		KEYWORD(130, 130, ISAMPLER2D);

-isampler3D		KEYWORD(130, 130, ISAMPLER3D);

-isamplerCube		KEYWORD(130, 130, ISAMPLERCUBE);

-isampler1DArray		KEYWORD(130, 130, ISAMPLER1DARRAY);

-isampler2DArray		KEYWORD(130, 130, ISAMPLER2DARRAY);

-usampler1D		KEYWORD(130, 130, USAMPLER1D);

-usampler2D		KEYWORD(130, 130, USAMPLER2D);

-usampler3D		KEYWORD(130, 130, USAMPLER3D);

-usamplerCube		KEYWORD(130, 130, USAMPLERCUBE);

-usampler1DArray		KEYWORD(130, 130, USAMPLER1DARRAY);

-usampler2DArray		KEYWORD(130, 130, USAMPLER2DARRAY);

-

-

-struct		return STRUCT;

-void		return VOID_TOK;

-

-layout		{

-		  if ((yyextra->language_version >= 140)

-		      || yyextra->AMD_conservative_depth_enable

-		      || yyextra->ARB_explicit_attrib_location_enable

-		      || yyextra->ARB_fragment_coord_conventions_enable) {

-		      return LAYOUT_TOK;

-		   } else {

-		      yylval->identifier = strdup(yytext);

-		      return IDENTIFIER;

-		   }

-		}

-

-\+\+		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]?	{

-			    yylval->n = strtol(yytext, NULL, 10);

-			    return IS_UINT ? UINTCONSTANT : INTCONSTANT;

-			}

-0[xX][0-9a-fA-F]+[uU]?	{

-			    yylval->n = strtol(yytext + 2, NULL, 16);

-			    return IS_UINT ? UINTCONSTANT : INTCONSTANT;

-			}

-0[0-7]*[uU]?		{

-			    yylval->n = strtol(yytext, NULL, 8);

-			    return IS_UINT ? UINTCONSTANT : INTCONSTANT;

-			}

-

-[0-9]+\.[0-9]+([eE][+-]?[0-9]+)?[fF]?	{

-			    yylval->real = glsl_strtod(yytext, NULL);

-			    return FLOATCONSTANT;

-			}

-\.[0-9]+([eE][+-]?[0-9]+)?[fF]?		{

-			    yylval->real = glsl_strtod(yytext, NULL);

-			    return FLOATCONSTANT;

-			}

-[0-9]+\.([eE][+-]?[0-9]+)?[fF]?		{

-			    yylval->real = glsl_strtod(yytext, NULL);

-			    return FLOATCONSTANT;

-			}

-[0-9]+[eE][+-]?[0-9]+[fF]?		{

-			    yylval->real = glsl_strtod(yytext, NULL);

-			    return FLOATCONSTANT;

-			}

-[0-9]+[fF]		{

-			    yylval->real = glsl_strtod(yytext, NULL);

-			    return FLOATCONSTANT;

-			}

-

-true			{

-			    yylval->n = 1;

-			    return BOOLCONSTANT;

-			}

-false			{

-			    yylval->n = 0;

-			    return BOOLCONSTANT;

-			}

-

-

-    /* Reserved words in GLSL 1.10. */

-asm		KEYWORD(110 || ES, 999, ASM);

-class		KEYWORD(110 || ES, 999, CLASS);

-union		KEYWORD(110 || ES, 999, UNION);

-enum		KEYWORD(110 || ES, 999, ENUM);

-typedef		KEYWORD(110 || ES, 999, TYPEDEF);

-template	KEYWORD(110 || ES, 999, TEMPLATE);

-this		KEYWORD(110 || ES, 999, THIS);

-packed		KEYWORD(110 || ES, 999, PACKED_TOK);

-goto		KEYWORD(110 || ES, 999, GOTO);

-switch		KEYWORD(110 || ES, 130, SWITCH);

-default		KEYWORD(110 || ES, 130, DEFAULT);

-inline		KEYWORD(110 || ES, 999, INLINE_TOK);

-noinline	KEYWORD(110 || ES, 999, NOINLINE);

-volatile	KEYWORD(110 || ES, 999, VOLATILE);

-public		KEYWORD(110 || ES, 999, PUBLIC_TOK);

-static		KEYWORD(110 || ES, 999, STATIC);

-extern		KEYWORD(110 || ES, 999, EXTERN);

-external	KEYWORD(110 || ES, 999, EXTERNAL);

-interface	KEYWORD(110 || ES, 999, INTERFACE);

-long		KEYWORD(110 || ES, 999, LONG_TOK);

-short		KEYWORD(110 || ES, 999, SHORT_TOK);

-double		KEYWORD(110 || ES, 400, DOUBLE_TOK);

-half		KEYWORD(110 || ES, 999, HALF);

-fixed		KEYWORD(110 || ES, 999, FIXED_TOK);

-unsigned	KEYWORD(110 || ES, 999, UNSIGNED);

-input		KEYWORD(110 || ES, 999, INPUT_TOK);

-output		KEYWORD(110 || ES, 999, OUTPUT);

-hvec2		KEYWORD(110 || ES, 999, HVEC2);

-hvec3		KEYWORD(110 || ES, 999, HVEC3);

-hvec4		KEYWORD(110 || ES, 999, HVEC4);

-dvec2		KEYWORD(110 || ES, 400, DVEC2);

-dvec3		KEYWORD(110 || ES, 400, DVEC3);

-dvec4		KEYWORD(110 || ES, 400, DVEC4);

-fvec2		KEYWORD(110 || ES, 999, FVEC2);

-fvec3		KEYWORD(110 || ES, 999, FVEC3);

-fvec4		KEYWORD(110 || ES, 999, FVEC4);

-sampler2DRect		return SAMPLER2DRECT;

-sampler3DRect		KEYWORD(110 || ES, 999, SAMPLER3DRECT);

-sampler2DRectShadow	return SAMPLER2DRECTSHADOW;

-sizeof		KEYWORD(110 || ES, 999, SIZEOF);

-cast		KEYWORD(110 || ES, 999, CAST);

-namespace	KEYWORD(110 || ES, 999, NAMESPACE);

-using		KEYWORD(110 || ES, 999, USING);

-

-    /* Additional reserved words in GLSL 1.20. */

-lowp		KEYWORD(120, 130 || ES, LOWP);

-mediump		KEYWORD(120, 130 || ES, MEDIUMP);

-highp		KEYWORD(120, 130 || ES, HIGHP);

-precision	KEYWORD(120, 130 || ES, PRECISION);

-

-    /* Additional reserved words in GLSL 1.30. */

-case		KEYWORD(130, 130, CASE);

-common		KEYWORD(130, 999, COMMON);

-partition	KEYWORD(130, 999, PARTITION);

-active		KEYWORD(130, 999, ACTIVE);

-superp		KEYWORD(130 || ES, 999, SUPERP);

-samplerBuffer	KEYWORD(130, 140, SAMPLERBUFFER);

-filter		KEYWORD(130, 999, FILTER);

-image1D		KEYWORD(130, 999, IMAGE1D);

-image2D		KEYWORD(130, 999, IMAGE2D);

-image3D		KEYWORD(130, 999, IMAGE3D);

-imageCube	KEYWORD(130, 999, IMAGECUBE);

-iimage1D	KEYWORD(130, 999, IIMAGE1D);

-iimage2D	KEYWORD(130, 999, IIMAGE2D);

-iimage3D	KEYWORD(130, 999, IIMAGE3D);

-iimageCube	KEYWORD(130, 999, IIMAGECUBE);

-uimage1D	KEYWORD(130, 999, UIMAGE1D);

-uimage2D	KEYWORD(130, 999, UIMAGE2D);

-uimage3D	KEYWORD(130, 999, UIMAGE3D);

-uimageCube	KEYWORD(130, 999, UIMAGECUBE);

-image1DArray	KEYWORD(130, 999, IMAGE1DARRAY);

-image2DArray	KEYWORD(130, 999, IMAGE2DARRAY);

-iimage1DArray	KEYWORD(130, 999, IIMAGE1DARRAY);

-iimage2DArray	KEYWORD(130, 999, IIMAGE2DARRAY);

-uimage1DArray	KEYWORD(130, 999, UIMAGE1DARRAY);

-uimage2DArray	KEYWORD(130, 999, UIMAGE2DARRAY);

-image1DShadow	KEYWORD(130, 999, IMAGE1DSHADOW);

-image2DShadow	KEYWORD(130, 999, IMAGE2DSHADOW);

-image1DArrayShadow KEYWORD(130, 999, IMAGE1DARRAYSHADOW);

-image2DArrayShadow KEYWORD(130, 999, IMAGE2DARRAYSHADOW);

-imageBuffer	KEYWORD(130, 999, IMAGEBUFFER);

-iimageBuffer	KEYWORD(130, 999, IIMAGEBUFFER);

-uimageBuffer	KEYWORD(130, 999, UIMAGEBUFFER);

-row_major	KEYWORD(130, 999, ROW_MAJOR);

-

-[_a-zA-Z][_a-zA-Z0-9]*	{

-			    struct _mesa_glsl_parse_state *state = yyextra;

-			    void *ctx = state;	

-			    yylval->identifier = ralloc_strdup(ctx, yytext);

-			    return classify_identifier(state, yytext);

-			}

-

-.			{ return yytext[0]; }

-

-%%

-

-int

-classify_identifier(struct _mesa_glsl_parse_state *state, const char *name)

-{

-   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);

-}

+%{
+/*
+ * 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 <ctype.h>
+#include <limits.h>
+#include "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 *);
+
+#ifdef _MSC_VER
+#define YY_NO_UNISTD_H
+#endif
+
+#define YY_USER_ACTION						\
+   do {								\
+      yylloc->source = 0;					\
+      yylloc->first_column = yycolumn + 1;			\
+      yylloc->first_line = yylineno + 1;			\
+      yycolumn += yyleng;					\
+   } while(0);
+
+#define YY_USER_INIT yylineno = 0; yycolumn = 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.
+ *
+ * For example, consider the following lexer rule:
+ * samplerBuffer       KEYWORD(130, 140, 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
+ */
+#define KEYWORD(reserved_version, allowed_version, token)		\
+   do {									\
+      if (yyextra->language_version >= allowed_version) {		\
+	 return token;							\
+      } else if (yyextra->language_version >= reserved_version) {	\
+	 _mesa_glsl_error(yylloc, yyextra,				\
+			  "Illegal use of reserved word `%s'", yytext);	\
+	 return ERROR_TOK;						\
+      } else {								\
+	 yylval->identifier = strdup(yytext);				\
+	 return classify_identifier(yyextra, yytext);			\
+      }									\
+   } while (0)
+
+/* The ES macro can be used in KEYWORD checks:
+ *
+ *    word      KEYWORD(110 || ES, 400, TOKEN)
+ * ...means the word is reserved in GLSL ES 1.00, while
+ *
+ *    word      KEYWORD(110, 130 || ES, TOKEN)
+ * ...means the word is a legal keyword in GLSL ES 1.00.
+ */
+#define ES yyextra->es_shader
+
+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');
+   const char *digits = text;
+
+   /* Skip "0x" */
+   if (base == 16)
+      digits += 2;
+
+#ifdef _MSC_VER
+   unsigned __int64 value = _strtoui64(digits, NULL, base);
+#else
+   unsigned long long value = strtoull(digits, NULL, base);
+#endif
+
+   lval->n = (int)value;
+
+   if (value > UINT_MAX) {
+      /* Note that signed 0xffffffff is valid, not out of range! */
+      if (state->language_version >= 130) {
+	 _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);
+   }
+   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_"
+%option extra-type="struct _mesa_glsl_parse_state *"
+
+%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; }
+^[ \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;
+				   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;
+				}
+^{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; }
+
+<PRAGMA>\n			{ BEGIN 0; yylineno++; yycolumn = 0; }
+<PRAGMA>.			{ }
+
+<PP>\/\/[^\n]*			{ }
+<PP>[ \t\r]*			{ }
+<PP>:				return COLON;
+<PP>[_a-zA-Z][_a-zA-Z0-9]*	{
+				   yylval->identifier = strdup(yytext);
+				   return IDENTIFIER;
+				}
+<PP>[1-9][0-9]*			{
+				    yylval->n = strtol(yytext, NULL, 10);
+				    return INTCONSTANT;
+				}
+<PP>\n				{ BEGIN 0; yylineno++; yycolumn = 0; return EOL; }
+
+\n		{ yylineno++; yycolumn = 0; }
+
+attribute	return ATTRIBUTE;
+const		return CONST_TOK;
+bool		return BOOL_TOK;
+float		return FLOAT_TOK;
+int		return INT_TOK;
+uint		KEYWORD(130, 130, UINT_TOK);
+
+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		return BVEC2;
+bvec3		return BVEC3;
+bvec4		return BVEC4;
+ivec2		return IVEC2;
+ivec3		return IVEC3;
+ivec4		return IVEC4;
+uvec2		KEYWORD(130, 130, UVEC2);
+uvec3		KEYWORD(130, 130, UVEC3);
+uvec4		KEYWORD(130, 130, UVEC4);
+vec2		return VEC2;
+vec3		return VEC3;
+vec4		return VEC4;
+mat2		return MAT2X2;
+mat3		return MAT3X3;
+mat4		return MAT4X4;
+mat2x2		KEYWORD(120, 120, MAT2X2);
+mat2x3		KEYWORD(120, 120, MAT2X3);
+mat2x4		KEYWORD(120, 120, MAT2X4);
+mat3x2		KEYWORD(120, 120, MAT3X2);
+mat3x3		KEYWORD(120, 120, MAT3X3);
+mat3x4		KEYWORD(120, 120, MAT3X4);
+mat4x2		KEYWORD(120, 120, MAT4X2);
+mat4x3		KEYWORD(120, 120, MAT4X3);
+mat4x4		KEYWORD(120, 120, MAT4X4);
+
+in		return IN_TOK;
+out		return OUT_TOK;
+inout		return INOUT_TOK;
+uniform		return UNIFORM;
+varying		return VARYING;
+centroid	KEYWORD(120, 120, CENTROID);
+invariant	KEYWORD(120 || ES, 120 || ES, INVARIANT);
+flat		KEYWORD(130 || ES, 130, FLAT);
+smooth		KEYWORD(130, 130, SMOOTH);
+noperspective	KEYWORD(130, 130, NOPERSPECTIVE);
+
+sampler1D	return SAMPLER1D;
+sampler2D	return SAMPLER2D;
+sampler3D	return SAMPLER3D;
+samplerCube	return SAMPLERCUBE;
+sampler1DArray	KEYWORD(130, 130, SAMPLER1DARRAY);
+sampler2DArray	KEYWORD(130, 130, SAMPLER2DARRAY);
+sampler1DShadow	return SAMPLER1DSHADOW;
+sampler2DShadow	return SAMPLER2DSHADOW;
+samplerCubeShadow	KEYWORD(130, 130, SAMPLERCUBESHADOW);
+sampler1DArrayShadow	KEYWORD(130, 130, SAMPLER1DARRAYSHADOW);
+sampler2DArrayShadow	KEYWORD(130, 130, SAMPLER2DARRAYSHADOW);
+isampler1D		KEYWORD(130, 130, ISAMPLER1D);
+isampler2D		KEYWORD(130, 130, ISAMPLER2D);
+isampler3D		KEYWORD(130, 130, ISAMPLER3D);
+isamplerCube		KEYWORD(130, 130, ISAMPLERCUBE);
+isampler1DArray		KEYWORD(130, 130, ISAMPLER1DARRAY);
+isampler2DArray		KEYWORD(130, 130, ISAMPLER2DARRAY);
+usampler1D		KEYWORD(130, 130, USAMPLER1D);
+usampler2D		KEYWORD(130, 130, USAMPLER2D);
+usampler3D		KEYWORD(130, 130, USAMPLER3D);
+usamplerCube		KEYWORD(130, 130, USAMPLERCUBE);
+usampler1DArray		KEYWORD(130, 130, USAMPLER1DARRAY);
+usampler2DArray		KEYWORD(130, 130, USAMPLER2DARRAY);
+
+samplerExternalOES	{
+			  if (yyextra->OES_EGL_image_external_enable)
+			     return SAMPLEREXTERNALOES;
+			  else
+			     return IDENTIFIER;
+			}
+
+
+struct		return STRUCT;
+void		return VOID_TOK;
+
+layout		{
+		  if ((yyextra->language_version >= 140)
+		      || yyextra->AMD_conservative_depth_enable
+		      || yyextra->ARB_explicit_attrib_location_enable
+		      || yyextra->ARB_fragment_coord_conventions_enable) {
+		      return LAYOUT_TOK;
+		   } else {
+		      yylval->identifier = strdup(yytext);
+		      return IDENTIFIER;
+		   }
+		}
+
+\+\+		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]?	{
+			    return LITERAL_INTEGER(10);
+			}
+0[xX][0-9a-fA-F]+[uU]?	{
+			    return LITERAL_INTEGER(16);
+			}
+0[0-7]*[uU]?		{
+			    return LITERAL_INTEGER(8);
+			}
+
+[0-9]+\.[0-9]+([eE][+-]?[0-9]+)?[fF]?	{
+			    yylval->real = glsl_strtod(yytext, NULL);
+			    return FLOATCONSTANT;
+			}
+\.[0-9]+([eE][+-]?[0-9]+)?[fF]?		{
+			    yylval->real = glsl_strtod(yytext, NULL);
+			    return FLOATCONSTANT;
+			}
+[0-9]+\.([eE][+-]?[0-9]+)?[fF]?		{
+			    yylval->real = glsl_strtod(yytext, NULL);
+			    return FLOATCONSTANT;
+			}
+[0-9]+[eE][+-]?[0-9]+[fF]?		{
+			    yylval->real = glsl_strtod(yytext, NULL);
+			    return FLOATCONSTANT;
+			}
+[0-9]+[fF]		{
+			    yylval->real = glsl_strtod(yytext, NULL);
+			    return FLOATCONSTANT;
+			}
+
+true			{
+			    yylval->n = 1;
+			    return BOOLCONSTANT;
+			}
+false			{
+			    yylval->n = 0;
+			    return BOOLCONSTANT;
+			}
+
+
+    /* Reserved words in GLSL 1.10. */
+asm		KEYWORD(110 || ES, 999, ASM);
+class		KEYWORD(110 || ES, 999, CLASS);
+union		KEYWORD(110 || ES, 999, UNION);
+enum		KEYWORD(110 || ES, 999, ENUM);
+typedef		KEYWORD(110 || ES, 999, TYPEDEF);
+template	KEYWORD(110 || ES, 999, TEMPLATE);
+this		KEYWORD(110 || ES, 999, THIS);
+packed		KEYWORD(110 || ES, 999, PACKED_TOK);
+goto		KEYWORD(110 || ES, 999, GOTO);
+switch		KEYWORD(110 || ES, 130, SWITCH);
+default		KEYWORD(110 || ES, 130, DEFAULT);
+inline		KEYWORD(110 || ES, 999, INLINE_TOK);
+noinline	KEYWORD(110 || ES, 999, NOINLINE);
+volatile	KEYWORD(110 || ES, 999, VOLATILE);
+public		KEYWORD(110 || ES, 999, PUBLIC_TOK);
+static		KEYWORD(110 || ES, 999, STATIC);
+extern		KEYWORD(110 || ES, 999, EXTERN);
+external	KEYWORD(110 || ES, 999, EXTERNAL);
+interface	KEYWORD(110 || ES, 999, INTERFACE);
+long		KEYWORD(110 || ES, 999, LONG_TOK);
+short		KEYWORD(110 || ES, 999, SHORT_TOK);
+double		KEYWORD(110 || ES, 400, DOUBLE_TOK);
+half		KEYWORD(110 || ES, 999, HALF);
+fixed		KEYWORD(110 || ES, 999, FIXED_TOK);
+unsigned	KEYWORD(110 || ES, 999, UNSIGNED);
+input		KEYWORD(110 || ES, 999, INPUT_TOK);
+output		KEYWORD(110 || ES, 999, OUTPUT);
+hvec2		KEYWORD(110 || ES, 999, HVEC2);
+hvec3		KEYWORD(110 || ES, 999, HVEC3);
+hvec4		KEYWORD(110 || ES, 999, HVEC4);
+dvec2		KEYWORD(110 || ES, 400, DVEC2);
+dvec3		KEYWORD(110 || ES, 400, DVEC3);
+dvec4		KEYWORD(110 || ES, 400, DVEC4);
+fvec2		KEYWORD(110 || ES, 999, FVEC2);
+fvec3		KEYWORD(110 || ES, 999, FVEC3);
+fvec4		KEYWORD(110 || ES, 999, FVEC4);
+sampler2DRect		return SAMPLER2DRECT;
+sampler3DRect		KEYWORD(110 || ES, 999, SAMPLER3DRECT);
+sampler2DRectShadow	return SAMPLER2DRECTSHADOW;
+sizeof		KEYWORD(110 || ES, 999, SIZEOF);
+cast		KEYWORD(110 || ES, 999, CAST);
+namespace	KEYWORD(110 || ES, 999, NAMESPACE);
+using		KEYWORD(110 || ES, 999, USING);
+
+    /* Additional reserved words in GLSL 1.20. */
+lowp		KEYWORD(120, 130 || ES, LOWP);
+mediump		KEYWORD(120, 130 || ES, MEDIUMP);
+highp		KEYWORD(120, 130 || ES, HIGHP);
+precision	KEYWORD(120, 130 || ES, PRECISION);
+
+    /* Additional reserved words in GLSL 1.30. */
+case		KEYWORD(130, 130, CASE);
+common		KEYWORD(130, 999, COMMON);
+partition	KEYWORD(130, 999, PARTITION);
+active		KEYWORD(130, 999, ACTIVE);
+superp		KEYWORD(130 || ES, 999, SUPERP);
+samplerBuffer	KEYWORD(130, 140, SAMPLERBUFFER);
+filter		KEYWORD(130, 999, FILTER);
+image1D		KEYWORD(130, 999, IMAGE1D);
+image2D		KEYWORD(130, 999, IMAGE2D);
+image3D		KEYWORD(130, 999, IMAGE3D);
+imageCube	KEYWORD(130, 999, IMAGECUBE);
+iimage1D	KEYWORD(130, 999, IIMAGE1D);
+iimage2D	KEYWORD(130, 999, IIMAGE2D);
+iimage3D	KEYWORD(130, 999, IIMAGE3D);
+iimageCube	KEYWORD(130, 999, IIMAGECUBE);
+uimage1D	KEYWORD(130, 999, UIMAGE1D);
+uimage2D	KEYWORD(130, 999, UIMAGE2D);
+uimage3D	KEYWORD(130, 999, UIMAGE3D);
+uimageCube	KEYWORD(130, 999, UIMAGECUBE);
+image1DArray	KEYWORD(130, 999, IMAGE1DARRAY);
+image2DArray	KEYWORD(130, 999, IMAGE2DARRAY);
+iimage1DArray	KEYWORD(130, 999, IIMAGE1DARRAY);
+iimage2DArray	KEYWORD(130, 999, IIMAGE2DARRAY);
+uimage1DArray	KEYWORD(130, 999, UIMAGE1DARRAY);
+uimage2DArray	KEYWORD(130, 999, UIMAGE2DARRAY);
+image1DShadow	KEYWORD(130, 999, IMAGE1DSHADOW);
+image2DShadow	KEYWORD(130, 999, IMAGE2DSHADOW);
+image1DArrayShadow KEYWORD(130, 999, IMAGE1DARRAYSHADOW);
+image2DArrayShadow KEYWORD(130, 999, IMAGE2DARRAYSHADOW);
+imageBuffer	KEYWORD(130, 999, IMAGEBUFFER);
+iimageBuffer	KEYWORD(130, 999, IIMAGEBUFFER);
+uimageBuffer	KEYWORD(130, 999, UIMAGEBUFFER);
+row_major	KEYWORD(130, 999, ROW_MAJOR);
+
+[_a-zA-Z][_a-zA-Z0-9]*	{
+			    struct _mesa_glsl_parse_state *state = yyextra;
+			    void *ctx = state;	
+			    yylval->identifier = ralloc_strdup(ctx, yytext);
+			    return classify_identifier(state, yytext);
+			}
+
+.			{ return yytext[0]; }
+
+%%
+
+int
+classify_identifier(struct _mesa_glsl_parse_state *state, const char *name)
+{
+   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);
+}