glsl: Rework lexer keyword handling in preparation for GLSL 3.00 ES.
This patch expands the lexer KEYWORD macro to take two additional
arguments: the GLSL ES versions in which the given keyword was first
reserved, and supported, respectively. This will allow us to
trivially add support for GLSL 3.00 ES keywords, even though the set
of GLSL 3.00 ES keywords is neither a subset or a superset of the
keywords corresponding to any desktop GLSL version.
The new KEYWORD macro makes use of the
_mesa_glsl_parse_state::is_version() function, so it accepts 0 as
meaning "unsupported" (rather than 999, which we used previously).
Note that a few keywords ("packed" and "row_major") are supported
*either* when GLSL 1.40 is in use or when ARB_uniform_buffer_obj
support is enabled. Previously, we handled these by cleverly taking
advantage of the fact that the KEYWORD macro didn't parenthesize its
arguments in the usual way. Now they are handled more
straightforwardly, with a new macro, KEYWORD_WITH_ALT.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Carl Worth <cworth@cworth.org>
This commit is contained in:
Paul Berry
Ian Romanick
parent
0d9bba6e43
commit
948e5dda67
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@ -48,20 +48,34 @@ static int classify_identifier(struct _mesa_glsl_parse_state *, const char *);
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*
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* Certain words start out as identifiers, become reserved words in
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* later language revisions, and finally become language keywords.
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* This may happen at different times in desktop GLSL and GLSL ES.
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*
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* For example, consider the following lexer rule:
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* samplerBuffer KEYWORD(130, 140, SAMPLERBUFFER)
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* samplerBuffer KEYWORD(130, 0, 140, 0, SAMPLERBUFFER)
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*
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* This means that "samplerBuffer" will be treated as:
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* - a keyword (SAMPLERBUFFER token) ...in GLSL >= 1.40
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* - a reserved word - error ...in GLSL >= 1.30
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* - an identifier ...in GLSL < 1.30
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* - an identifier ...in GLSL < 1.30 or GLSL ES
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*/
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#define KEYWORD(reserved_version, allowed_version, token) \
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#define KEYWORD(reserved_glsl, reserved_glsl_es, \
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allowed_glsl, allowed_glsl_es, token) \
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KEYWORD_WITH_ALT(reserved_glsl, reserved_glsl_es, \
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allowed_glsl, allowed_glsl_es, false, token)
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/**
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* Like the KEYWORD macro, but the word is also treated as a keyword
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* if the given boolean expression is true.
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*/
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#define KEYWORD_WITH_ALT(reserved_glsl, reserved_glsl_es, \
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allowed_glsl, allowed_glsl_es, \
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alt_expr, token) \
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do { \
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if (yyextra->language_version >= allowed_version) { \
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if (yyextra->is_version(allowed_glsl, allowed_glsl_es) \
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|| alt_expr) { \
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return token; \
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} else if (yyextra->language_version >= reserved_version) { \
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} else if (yyextra->is_version(reserved_glsl, \
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reserved_glsl_es)) { \
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_mesa_glsl_error(yylloc, yyextra, \
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"Illegal use of reserved word `%s'", yytext); \
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return ERROR_TOK; \
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@ -71,16 +85,6 @@ static int classify_identifier(struct _mesa_glsl_parse_state *, const char *);
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} \
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} while (0)
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/* The ES macro can be used in KEYWORD checks:
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*
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* word KEYWORD(110 || ES, 400, TOKEN)
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* ...means the word is reserved in GLSL ES 1.00, while
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*
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* word KEYWORD(110, 130 || ES, TOKEN)
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* ...means the word is a legal keyword in GLSL ES 1.00.
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*/
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#define ES yyextra->es_shader
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static int
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literal_integer(char *text, int len, struct _mesa_glsl_parse_state *state,
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YYSTYPE *lval, YYLTYPE *lloc, int base)
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@ -224,7 +228,7 @@ const return CONST_TOK;
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bool return BOOL_TOK;
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float return FLOAT_TOK;
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int return INT_TOK;
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uint KEYWORD(130, 130, UINT_TOK);
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uint KEYWORD(130, 0, 130, 0, UINT_TOK);
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break return BREAK;
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continue return CONTINUE;
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@ -242,59 +246,59 @@ bvec4 return BVEC4;
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ivec2 return IVEC2;
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ivec3 return IVEC3;
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ivec4 return IVEC4;
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uvec2 KEYWORD(130, 130, UVEC2);
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uvec3 KEYWORD(130, 130, UVEC3);
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uvec4 KEYWORD(130, 130, UVEC4);
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uvec2 KEYWORD(130, 0, 130, 0, UVEC2);
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uvec3 KEYWORD(130, 0, 130, 0, UVEC3);
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uvec4 KEYWORD(130, 0, 130, 0, UVEC4);
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vec2 return VEC2;
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vec3 return VEC3;
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vec4 return VEC4;
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mat2 return MAT2X2;
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mat3 return MAT3X3;
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mat4 return MAT4X4;
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mat2x2 KEYWORD(120, 120, MAT2X2);
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mat2x3 KEYWORD(120, 120, MAT2X3);
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mat2x4 KEYWORD(120, 120, MAT2X4);
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mat3x2 KEYWORD(120, 120, MAT3X2);
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mat3x3 KEYWORD(120, 120, MAT3X3);
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mat3x4 KEYWORD(120, 120, MAT3X4);
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mat4x2 KEYWORD(120, 120, MAT4X2);
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mat4x3 KEYWORD(120, 120, MAT4X3);
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mat4x4 KEYWORD(120, 120, MAT4X4);
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mat2x2 KEYWORD(120, 0, 120, 0, MAT2X2);
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mat2x3 KEYWORD(120, 0, 120, 0, MAT2X3);
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mat2x4 KEYWORD(120, 0, 120, 0, MAT2X4);
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mat3x2 KEYWORD(120, 0, 120, 0, MAT3X2);
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mat3x3 KEYWORD(120, 0, 120, 0, MAT3X3);
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mat3x4 KEYWORD(120, 0, 120, 0, MAT3X4);
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mat4x2 KEYWORD(120, 0, 120, 0, MAT4X2);
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mat4x3 KEYWORD(120, 0, 120, 0, MAT4X3);
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mat4x4 KEYWORD(120, 0, 120, 0, MAT4X4);
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in return IN_TOK;
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out return OUT_TOK;
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inout return INOUT_TOK;
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uniform return UNIFORM;
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varying return VARYING;
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centroid KEYWORD(120, 120, CENTROID);
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invariant KEYWORD(120 || ES, 120 || ES, INVARIANT);
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flat KEYWORD(130 || ES, 130, FLAT);
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smooth KEYWORD(130, 130, SMOOTH);
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noperspective KEYWORD(130, 130, NOPERSPECTIVE);
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centroid KEYWORD(120, 0, 120, 0, CENTROID);
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invariant KEYWORD(120, 100, 120, 100, INVARIANT);
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flat KEYWORD(130, 100, 130, 0, FLAT);
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smooth KEYWORD(130, 0, 130, 0, SMOOTH);
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noperspective KEYWORD(130, 0, 130, 0, NOPERSPECTIVE);
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sampler1D return SAMPLER1D;
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sampler2D return SAMPLER2D;
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sampler3D return SAMPLER3D;
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samplerCube return SAMPLERCUBE;
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sampler1DArray KEYWORD(130, 130, SAMPLER1DARRAY);
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sampler2DArray KEYWORD(130, 130, SAMPLER2DARRAY);
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sampler1DArray KEYWORD(130, 0, 130, 0, SAMPLER1DARRAY);
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sampler2DArray KEYWORD(130, 0, 130, 0, SAMPLER2DARRAY);
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sampler1DShadow return SAMPLER1DSHADOW;
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sampler2DShadow return SAMPLER2DSHADOW;
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samplerCubeShadow KEYWORD(130, 130, SAMPLERCUBESHADOW);
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sampler1DArrayShadow KEYWORD(130, 130, SAMPLER1DARRAYSHADOW);
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sampler2DArrayShadow KEYWORD(130, 130, SAMPLER2DARRAYSHADOW);
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isampler1D KEYWORD(130, 130, ISAMPLER1D);
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isampler2D KEYWORD(130, 130, ISAMPLER2D);
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isampler3D KEYWORD(130, 130, ISAMPLER3D);
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isamplerCube KEYWORD(130, 130, ISAMPLERCUBE);
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isampler1DArray KEYWORD(130, 130, ISAMPLER1DARRAY);
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isampler2DArray KEYWORD(130, 130, ISAMPLER2DARRAY);
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usampler1D KEYWORD(130, 130, USAMPLER1D);
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usampler2D KEYWORD(130, 130, USAMPLER2D);
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usampler3D KEYWORD(130, 130, USAMPLER3D);
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usamplerCube KEYWORD(130, 130, USAMPLERCUBE);
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usampler1DArray KEYWORD(130, 130, USAMPLER1DARRAY);
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usampler2DArray KEYWORD(130, 130, USAMPLER2DARRAY);
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samplerCubeShadow KEYWORD(130, 0, 130, 0, SAMPLERCUBESHADOW);
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sampler1DArrayShadow KEYWORD(130, 0, 130, 0, SAMPLER1DARRAYSHADOW);
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sampler2DArrayShadow KEYWORD(130, 0, 130, 0, SAMPLER2DARRAYSHADOW);
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isampler1D KEYWORD(130, 0, 130, 0, ISAMPLER1D);
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isampler2D KEYWORD(130, 0, 130, 0, ISAMPLER2D);
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isampler3D KEYWORD(130, 0, 130, 0, ISAMPLER3D);
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isamplerCube KEYWORD(130, 0, 130, 0, ISAMPLERCUBE);
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isampler1DArray KEYWORD(130, 0, 130, 0, ISAMPLER1DARRAY);
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isampler2DArray KEYWORD(130, 0, 130, 0, ISAMPLER2DARRAY);
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usampler1D KEYWORD(130, 0, 130, 0, USAMPLER1D);
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usampler2D KEYWORD(130, 0, 130, 0, USAMPLER2D);
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usampler3D KEYWORD(130, 0, 130, 0, USAMPLER3D);
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usamplerCube KEYWORD(130, 0, 130, 0, USAMPLERCUBE);
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usampler1DArray KEYWORD(130, 0, 130, 0, USAMPLER1DARRAY);
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usampler2DArray KEYWORD(130, 0, 130, 0, USAMPLER2DARRAY);
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samplerCubeArray {
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if (yyextra->ARB_texture_cube_map_array_enable)
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@ -411,96 +415,96 @@ false {
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/* Reserved words in GLSL 1.10. */
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asm KEYWORD(110 || ES, 999, ASM);
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class KEYWORD(110 || ES, 999, CLASS);
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union KEYWORD(110 || ES, 999, UNION);
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enum KEYWORD(110 || ES, 999, ENUM);
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typedef KEYWORD(110 || ES, 999, TYPEDEF);
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template KEYWORD(110 || ES, 999, TEMPLATE);
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this KEYWORD(110 || ES, 999, THIS);
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packed KEYWORD(110 || ES, 140 || yyextra->ARB_uniform_buffer_object_enable, PACKED_TOK);
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goto KEYWORD(110 || ES, 999, GOTO);
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switch KEYWORD(110 || ES, 130, SWITCH);
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default KEYWORD(110 || ES, 130, DEFAULT);
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inline KEYWORD(110 || ES, 999, INLINE_TOK);
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noinline KEYWORD(110 || ES, 999, NOINLINE);
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volatile KEYWORD(110 || ES, 999, VOLATILE);
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public KEYWORD(110 || ES, 999, PUBLIC_TOK);
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static KEYWORD(110 || ES, 999, STATIC);
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extern KEYWORD(110 || ES, 999, EXTERN);
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external KEYWORD(110 || ES, 999, EXTERNAL);
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interface KEYWORD(110 || ES, 999, INTERFACE);
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long KEYWORD(110 || ES, 999, LONG_TOK);
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short KEYWORD(110 || ES, 999, SHORT_TOK);
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double KEYWORD(110 || ES, 400, DOUBLE_TOK);
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half KEYWORD(110 || ES, 999, HALF);
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fixed KEYWORD(110 || ES, 999, FIXED_TOK);
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unsigned KEYWORD(110 || ES, 999, UNSIGNED);
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input KEYWORD(110 || ES, 999, INPUT_TOK);
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output KEYWORD(110 || ES, 999, OUTPUT);
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hvec2 KEYWORD(110 || ES, 999, HVEC2);
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hvec3 KEYWORD(110 || ES, 999, HVEC3);
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hvec4 KEYWORD(110 || ES, 999, HVEC4);
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dvec2 KEYWORD(110 || ES, 400, DVEC2);
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dvec3 KEYWORD(110 || ES, 400, DVEC3);
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dvec4 KEYWORD(110 || ES, 400, DVEC4);
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fvec2 KEYWORD(110 || ES, 999, FVEC2);
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fvec3 KEYWORD(110 || ES, 999, FVEC3);
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fvec4 KEYWORD(110 || ES, 999, FVEC4);
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asm KEYWORD(110, 100, 0, 0, ASM);
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class KEYWORD(110, 100, 0, 0, CLASS);
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union KEYWORD(110, 100, 0, 0, UNION);
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enum KEYWORD(110, 100, 0, 0, ENUM);
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typedef KEYWORD(110, 100, 0, 0, TYPEDEF);
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template KEYWORD(110, 100, 0, 0, TEMPLATE);
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this KEYWORD(110, 100, 0, 0, THIS);
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packed KEYWORD_WITH_ALT(110, 100, 140, 0, yyextra->ARB_uniform_buffer_object_enable, PACKED_TOK);
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goto KEYWORD(110, 100, 0, 0, GOTO);
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switch KEYWORD(110, 100, 130, 0, SWITCH);
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default KEYWORD(110, 100, 130, 0, DEFAULT);
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inline KEYWORD(110, 100, 0, 0, INLINE_TOK);
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noinline KEYWORD(110, 100, 0, 0, NOINLINE);
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volatile KEYWORD(110, 100, 0, 0, VOLATILE);
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public KEYWORD(110, 100, 0, 0, PUBLIC_TOK);
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static KEYWORD(110, 100, 0, 0, STATIC);
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extern KEYWORD(110, 100, 0, 0, EXTERN);
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external KEYWORD(110, 100, 0, 0, EXTERNAL);
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interface KEYWORD(110, 100, 0, 0, INTERFACE);
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long KEYWORD(110, 100, 0, 0, LONG_TOK);
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short KEYWORD(110, 100, 0, 0, SHORT_TOK);
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double KEYWORD(110, 100, 400, 0, DOUBLE_TOK);
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half KEYWORD(110, 100, 0, 0, HALF);
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fixed KEYWORD(110, 100, 0, 0, FIXED_TOK);
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unsigned KEYWORD(110, 100, 0, 0, UNSIGNED);
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input KEYWORD(110, 100, 0, 0, INPUT_TOK);
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output KEYWORD(110, 100, 0, 0, OUTPUT);
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hvec2 KEYWORD(110, 100, 0, 0, HVEC2);
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hvec3 KEYWORD(110, 100, 0, 0, HVEC3);
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hvec4 KEYWORD(110, 100, 0, 0, HVEC4);
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dvec2 KEYWORD(110, 100, 400, 0, DVEC2);
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dvec3 KEYWORD(110, 100, 400, 0, DVEC3);
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dvec4 KEYWORD(110, 100, 400, 0, DVEC4);
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fvec2 KEYWORD(110, 100, 0, 0, FVEC2);
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fvec3 KEYWORD(110, 100, 0, 0, FVEC3);
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fvec4 KEYWORD(110, 100, 0, 0, FVEC4);
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sampler2DRect return SAMPLER2DRECT;
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sampler3DRect KEYWORD(110 || ES, 999, SAMPLER3DRECT);
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sampler3DRect KEYWORD(110, 100, 0, 0, SAMPLER3DRECT);
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sampler2DRectShadow return SAMPLER2DRECTSHADOW;
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sizeof KEYWORD(110 || ES, 999, SIZEOF);
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cast KEYWORD(110 || ES, 999, CAST);
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namespace KEYWORD(110 || ES, 999, NAMESPACE);
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using KEYWORD(110 || ES, 999, USING);
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sizeof KEYWORD(110, 100, 0, 0, SIZEOF);
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cast KEYWORD(110, 100, 0, 0, CAST);
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namespace KEYWORD(110, 100, 0, 0, NAMESPACE);
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using KEYWORD(110, 100, 0, 0, USING);
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/* Additional reserved words in GLSL 1.20. */
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lowp KEYWORD(120, 130 || ES, LOWP);
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mediump KEYWORD(120, 130 || ES, MEDIUMP);
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highp KEYWORD(120, 130 || ES, HIGHP);
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precision KEYWORD(120, 130 || ES, PRECISION);
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lowp KEYWORD(120, 100, 130, 100, LOWP);
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mediump KEYWORD(120, 100, 130, 100, MEDIUMP);
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highp KEYWORD(120, 100, 130, 100, HIGHP);
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precision KEYWORD(120, 100, 130, 100, PRECISION);
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/* Additional reserved words in GLSL 1.30. */
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case KEYWORD(130, 130, CASE);
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common KEYWORD(130, 999, COMMON);
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partition KEYWORD(130, 999, PARTITION);
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active KEYWORD(130, 999, ACTIVE);
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superp KEYWORD(130 || ES, 999, SUPERP);
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samplerBuffer KEYWORD(130, 140, SAMPLERBUFFER);
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filter KEYWORD(130, 999, FILTER);
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image1D KEYWORD(130, 999, IMAGE1D);
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image2D KEYWORD(130, 999, IMAGE2D);
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image3D KEYWORD(130, 999, IMAGE3D);
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imageCube KEYWORD(130, 999, IMAGECUBE);
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iimage1D KEYWORD(130, 999, IIMAGE1D);
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iimage2D KEYWORD(130, 999, IIMAGE2D);
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iimage3D KEYWORD(130, 999, IIMAGE3D);
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iimageCube KEYWORD(130, 999, IIMAGECUBE);
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uimage1D KEYWORD(130, 999, UIMAGE1D);
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uimage2D KEYWORD(130, 999, UIMAGE2D);
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uimage3D KEYWORD(130, 999, UIMAGE3D);
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uimageCube KEYWORD(130, 999, UIMAGECUBE);
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image1DArray KEYWORD(130, 999, IMAGE1DARRAY);
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image2DArray KEYWORD(130, 999, IMAGE2DARRAY);
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iimage1DArray KEYWORD(130, 999, IIMAGE1DARRAY);
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iimage2DArray KEYWORD(130, 999, IIMAGE2DARRAY);
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uimage1DArray KEYWORD(130, 999, UIMAGE1DARRAY);
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uimage2DArray KEYWORD(130, 999, UIMAGE2DARRAY);
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image1DShadow KEYWORD(130, 999, IMAGE1DSHADOW);
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image2DShadow KEYWORD(130, 999, IMAGE2DSHADOW);
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image1DArrayShadow KEYWORD(130, 999, IMAGE1DARRAYSHADOW);
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image2DArrayShadow KEYWORD(130, 999, IMAGE2DARRAYSHADOW);
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imageBuffer KEYWORD(130, 999, IMAGEBUFFER);
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iimageBuffer KEYWORD(130, 999, IIMAGEBUFFER);
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uimageBuffer KEYWORD(130, 999, UIMAGEBUFFER);
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row_major KEYWORD(130, 140 || yyextra->ARB_uniform_buffer_object_enable, ROW_MAJOR);
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case KEYWORD(130, 0, 130, 0, CASE);
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common KEYWORD(130, 0, 0, 0, COMMON);
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partition KEYWORD(130, 0, 0, 0, PARTITION);
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active KEYWORD(130, 0, 0, 0, ACTIVE);
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superp KEYWORD(130, 100, 0, 0, SUPERP);
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samplerBuffer KEYWORD(130, 0, 140, 0, SAMPLERBUFFER);
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filter KEYWORD(130, 0, 0, 0, FILTER);
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image1D KEYWORD(130, 0, 0, 0, IMAGE1D);
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image2D KEYWORD(130, 0, 0, 0, IMAGE2D);
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image3D KEYWORD(130, 0, 0, 0, IMAGE3D);
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imageCube KEYWORD(130, 0, 0, 0, IMAGECUBE);
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iimage1D KEYWORD(130, 0, 0, 0, IIMAGE1D);
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iimage2D KEYWORD(130, 0, 0, 0, IIMAGE2D);
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iimage3D KEYWORD(130, 0, 0, 0, IIMAGE3D);
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iimageCube KEYWORD(130, 0, 0, 0, IIMAGECUBE);
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uimage1D KEYWORD(130, 0, 0, 0, UIMAGE1D);
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uimage2D KEYWORD(130, 0, 0, 0, UIMAGE2D);
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uimage3D KEYWORD(130, 0, 0, 0, UIMAGE3D);
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uimageCube KEYWORD(130, 0, 0, 0, UIMAGECUBE);
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image1DArray KEYWORD(130, 0, 0, 0, IMAGE1DARRAY);
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image2DArray KEYWORD(130, 0, 0, 0, IMAGE2DARRAY);
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iimage1DArray KEYWORD(130, 0, 0, 0, IIMAGE1DARRAY);
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iimage2DArray KEYWORD(130, 0, 0, 0, IIMAGE2DARRAY);
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uimage1DArray KEYWORD(130, 0, 0, 0, UIMAGE1DARRAY);
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uimage2DArray KEYWORD(130, 0, 0, 0, UIMAGE2DARRAY);
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image1DShadow KEYWORD(130, 0, 0, 0, IMAGE1DSHADOW);
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image2DShadow KEYWORD(130, 0, 0, 0, IMAGE2DSHADOW);
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image1DArrayShadow KEYWORD(130, 0, 0, 0, IMAGE1DARRAYSHADOW);
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image2DArrayShadow KEYWORD(130, 0, 0, 0, IMAGE2DARRAYSHADOW);
|
||||
imageBuffer KEYWORD(130, 0, 0, 0, IMAGEBUFFER);
|
||||
iimageBuffer KEYWORD(130, 0, 0, 0, IIMAGEBUFFER);
|
||||
uimageBuffer KEYWORD(130, 0, 0, 0, UIMAGEBUFFER);
|
||||
row_major KEYWORD_WITH_ALT(130, 0, 140, 0, yyextra->ARB_uniform_buffer_object_enable, ROW_MAJOR);
|
||||
|
||||
/* Additional reserved words in GLSL 1.40 */
|
||||
isampler2DRect KEYWORD(140, 140, ISAMPLER2DRECT);
|
||||
usampler2DRect KEYWORD(140, 140, USAMPLER2DRECT);
|
||||
isamplerBuffer KEYWORD(140, 140, ISAMPLERBUFFER);
|
||||
usamplerBuffer KEYWORD(140, 140, USAMPLERBUFFER);
|
||||
isampler2DRect KEYWORD(140, 0, 140, 0, ISAMPLER2DRECT);
|
||||
usampler2DRect KEYWORD(140, 0, 140, 0, USAMPLER2DRECT);
|
||||
isamplerBuffer KEYWORD(140, 0, 140, 0, ISAMPLERBUFFER);
|
||||
usamplerBuffer KEYWORD(140, 0, 140, 0, USAMPLERBUFFER);
|
||||
|
||||
[_a-zA-Z][_a-zA-Z0-9]* {
|
||||
struct _mesa_glsl_parse_state *state = yyextra;
|
||||
|
|
|
|||
Loading…
Reference in New Issue