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Commit 309a1d98 by Nicolas Capens
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Add helper functions to the lexer to tokenize strings that have different…

Add helper functions to the lexer to tokenize strings that have different classifications in ES2 and ES3. Bug 19331817 Change-Id: I4e1c190e23aa63b03ef8f57930102d01e496f107 Reviewed-on: https://swiftshader-review.googlesource.com/2311Reviewed-by: 's avatarAlexis Hétu <sugoi@google.com> Reviewed-by: 's avatarNicolas Capens <capn@google.com> Tested-by: 's avatarNicolas Capens <capn@google.com>
parent a6a79ab0
Showing with 72 additions and 20 deletions
src/OpenGL/compiler/glslang.l
...@@ -54,6 +54,8 @@ WHICH GENERATES THE GLSL ES LEXER (glslang_lex.cpp). ...@@ -54,6 +54,8 @@ WHICH GENERATES THE GLSL ES LEXER (glslang_lex.cpp).
static int string_input(char* buf, int max_size, yyscan_t yyscanner); static int string_input(char* buf, int max_size, yyscan_t yyscanner);
static int check_type(yyscan_t yyscanner); static int check_type(yyscan_t yyscanner);
static int reserved_word(yyscan_t yyscanner); static int reserved_word(yyscan_t yyscanner);
static int ES2_reserved_ES3_keyword(TParseContext *context, int token);
static int ES2_keyword_ES3_reserved(TParseContext *context, int token);
%} %}
%option noyywrap nounput never-interactive %option noyywrap nounput never-interactive
...@@ -89,10 +91,10 @@ O [0-7] ...@@ -89,10 +91,10 @@ O [0-7]
"lowp" { return(LOW_PRECISION); } "lowp" { return(LOW_PRECISION); }
"precision" { return(PRECISION); } "precision" { return(PRECISION); }
"attribute" { if (context->shaderVersion < 300) return(ATTRIBUTE); return reserved_word(yyscanner); } "attribute" { return ES2_keyword_ES3_reserved(context, ATTRIBUTE); }
"const" { return(CONST_QUAL); } "const" { return(CONST_QUAL); }
"uniform" { return(UNIFORM); } "uniform" { return(UNIFORM); }
"varying" { if (context->shaderVersion < 300) return(VARYING); return reserved_word(yyscanner); } "varying" { return ES2_keyword_ES3_reserved(context, VARYING); }
"break" { return(BREAK); } "break" { return(BREAK); }
"continue" { return(CONTINUE); } "continue" { return(CONTINUE); }
...@@ -102,13 +104,13 @@ O [0-7] ...@@ -102,13 +104,13 @@ O [0-7]
"if" { return(IF); } "if" { return(IF); }
"else" { return(ELSE); } "else" { return(ELSE); }
"switch" { if (context->shaderVersion < 300) return reserved_word(yyscanner); return(SWITCH); } "switch" { return ES2_reserved_ES3_keyword(context, SWITCH); }
"case" { if (context->shaderVersion < 300) return reserved_word(yyscanner); return(CASE); } "case" { return ES2_reserved_ES3_keyword(context, CASE); }
"default" { if (context->shaderVersion < 300) return reserved_word(yyscanner); return(DEFAULT); } "default" { return ES2_reserved_ES3_keyword(context, DEFAULT); }
"centroid" { if (context->shaderVersion < 300) return reserved_word(yyscanner); return(CENTROID); } "centroid" { return ES2_reserved_ES3_keyword(context, CENTROID); }
"flat" { if (context->shaderVersion < 300) return reserved_word(yyscanner); return(FLAT); } "flat" { return ES2_reserved_ES3_keyword(context, FLAT); }
"smooth" { if (context->shaderVersion < 300) return reserved_word(yyscanner); return(SMOOTH); } "smooth" { return ES2_reserved_ES3_keyword(context, SMOOTH); }
"in" { return(IN_QUAL); } "in" { return(IN_QUAL); }
"out" { return(OUT_QUAL); } "out" { return(OUT_QUAL); }
...@@ -142,8 +144,8 @@ O [0-7] ...@@ -142,8 +144,8 @@ O [0-7]
"samplerCube" { context->lexAfterType = true; return SAMPLERCUBE; } "samplerCube" { context->lexAfterType = true; return SAMPLERCUBE; }
"samplerExternalOES" { context->lexAfterType = true; return SAMPLER_EXTERNAL_OES; } "samplerExternalOES" { context->lexAfterType = true; return SAMPLER_EXTERNAL_OES; }
"sampler3D" { context->lexAfterType = true; return SAMPLER3D; } "sampler3D" { context->lexAfterType = true; return SAMPLER3D; }
"sampler3DRect" { if (context->shaderVersion < 300) return reserved_word(yyscanner); context->lexAfterType = true; return SAMPLER3DRECT; } "sampler3DRect" { return ES2_reserved_ES3_keyword(context, SAMPLER3DRECT); }
"sampler2DShadow" { if (context->shaderVersion < 300) return reserved_word(yyscanner); context->lexAfterType = true; return SAMPLER2DSHADOW; } "sampler2DShadow" { return ES2_reserved_ES3_keyword(context, SAMPLER2DSHADOW); }
"struct" { context->lexAfterType = true; return(STRUCT); } "struct" { context->lexAfterType = true; return(STRUCT); }
...@@ -383,6 +385,30 @@ int reserved_word(yyscan_t yyscanner) { ...@@ -383,6 +385,30 @@ int reserved_word(yyscan_t yyscanner) {
return 0; return 0;
} }
int ES2_reserved_ES3_keyword(TParseContext *context, int token)
{
yyscan_t yyscanner = (yyscan_t) context->scanner;
if (context->shaderVersion < 300)
{
return reserved_word(yyscanner);
}
return token;
}
int ES2_keyword_ES3_reserved(TParseContext *context, int token)
{
yyscan_t yyscanner = (yyscan_t) context->scanner;
if (context->shaderVersion >= 300)
{
return reserved_word(yyscanner);
}
return token;
}
void yyerror(TParseContext* context, const char* reason) { void yyerror(TParseContext* context, const char* reason) {
struct yyguts_t* yyg = (struct yyguts_t*) context->scanner; struct yyguts_t* yyg = (struct yyguts_t*) context->scanner;
......
src/OpenGL/compiler/glslang_lex.cpp
...@@ -1003,6 +1003,8 @@ WHICH GENERATES THE GLSL ES LEXER (glslang_lex.cpp). ...@@ -1003,6 +1003,8 @@ WHICH GENERATES THE GLSL ES LEXER (glslang_lex.cpp).
static int string_input(char* buf, int max_size, yyscan_t yyscanner); static int string_input(char* buf, int max_size, yyscan_t yyscanner);
static int check_type(yyscan_t yyscanner); static int check_type(yyscan_t yyscanner);
static int reserved_word(yyscan_t yyscanner); static int reserved_word(yyscan_t yyscanner);
static int ES2_reserved_ES3_keyword(TParseContext *context, int token);
static int ES2_keyword_ES3_reserved(TParseContext *context, int token);
#define INITIAL 0 #define INITIAL 0
#define COMMENT 1 #define COMMENT 1
...@@ -1372,7 +1374,7 @@ YY_RULE_SETUP ...@@ -1372,7 +1374,7 @@ YY_RULE_SETUP
YY_BREAK YY_BREAK
case 11: case 11:
YY_RULE_SETUP YY_RULE_SETUP
{ if (context->shaderVersion < 300) return(ATTRIBUTE); return reserved_word(yyscanner); } { return ES2_keyword_ES3_reserved(context, ATTRIBUTE); }
YY_BREAK YY_BREAK
case 12: case 12:
YY_RULE_SETUP YY_RULE_SETUP
...@@ -1384,7 +1386,7 @@ YY_RULE_SETUP ...@@ -1384,7 +1386,7 @@ YY_RULE_SETUP
YY_BREAK YY_BREAK
case 14: case 14:
YY_RULE_SETUP YY_RULE_SETUP
{ if (context->shaderVersion < 300) return(VARYING); return reserved_word(yyscanner); } { return ES2_keyword_ES3_reserved(context, VARYING); }
YY_BREAK YY_BREAK
case 15: case 15:
YY_RULE_SETUP YY_RULE_SETUP
...@@ -1416,27 +1418,27 @@ YY_RULE_SETUP ...@@ -1416,27 +1418,27 @@ YY_RULE_SETUP
YY_BREAK YY_BREAK
case 22: case 22:
YY_RULE_SETUP YY_RULE_SETUP
{ if (context->shaderVersion < 300) return reserved_word(yyscanner); return(SWITCH); } { return ES2_reserved_ES3_keyword(context, SWITCH); }
YY_BREAK YY_BREAK
case 23: case 23:
YY_RULE_SETUP YY_RULE_SETUP
{ if (context->shaderVersion < 300) return reserved_word(yyscanner); return(CASE); } { return ES2_reserved_ES3_keyword(context, CASE); }
YY_BREAK YY_BREAK
case 24: case 24:
YY_RULE_SETUP YY_RULE_SETUP
{ if (context->shaderVersion < 300) return reserved_word(yyscanner); return(DEFAULT); } { return ES2_reserved_ES3_keyword(context, DEFAULT); }
YY_BREAK YY_BREAK
case 25: case 25:
YY_RULE_SETUP YY_RULE_SETUP
{ if (context->shaderVersion < 300) return reserved_word(yyscanner); return(CENTROID); } { return ES2_reserved_ES3_keyword(context, CENTROID); }
YY_BREAK YY_BREAK
case 26: case 26:
YY_RULE_SETUP YY_RULE_SETUP
{ if (context->shaderVersion < 300) return reserved_word(yyscanner); return(FLAT); } { return ES2_reserved_ES3_keyword(context, FLAT); }
YY_BREAK YY_BREAK
case 27: case 27:
YY_RULE_SETUP YY_RULE_SETUP
{ if (context->shaderVersion < 300) return reserved_word(yyscanner); return(SMOOTH); } { return ES2_reserved_ES3_keyword(context, SMOOTH); }
YY_BREAK YY_BREAK
case 28: case 28:
YY_RULE_SETUP YY_RULE_SETUP
...@@ -1548,11 +1550,11 @@ YY_RULE_SETUP ...@@ -1548,11 +1550,11 @@ YY_RULE_SETUP
YY_BREAK YY_BREAK
case 55: case 55:
YY_RULE_SETUP YY_RULE_SETUP
{ if (context->shaderVersion < 300) return reserved_word(yyscanner); context->lexAfterType = true; return SAMPLER3DRECT; } { return ES2_reserved_ES3_keyword(context, SAMPLER3DRECT); }
YY_BREAK YY_BREAK
case 56: case 56:
YY_RULE_SETUP YY_RULE_SETUP
{ if (context->shaderVersion < 300) return reserved_word(yyscanner); context->lexAfterType = true; return SAMPLER2DSHADOW; } { return ES2_reserved_ES3_keyword(context, SAMPLER2DSHADOW); }
YY_BREAK YY_BREAK
case 57: case 57:
YY_RULE_SETUP YY_RULE_SETUP
...@@ -3128,6 +3130,30 @@ int reserved_word(yyscan_t yyscanner) { ...@@ -3128,6 +3130,30 @@ int reserved_word(yyscan_t yyscanner) {
return 0; return 0;
} }
int ES2_reserved_ES3_keyword(TParseContext *context, int token)
{
yyscan_t yyscanner = (yyscan_t) context->scanner;
if (context->shaderVersion < 300)
{
return reserved_word(yyscanner);
}
return token;
}
int ES2_keyword_ES3_reserved(TParseContext *context, int token)
{
yyscan_t yyscanner = (yyscan_t) context->scanner;
if (context->shaderVersion >= 300)
{
return reserved_word(yyscanner);
}
return token;
}
void yyerror(TParseContext* context, const char* reason) { void yyerror(TParseContext* context, const char* reason) {
struct yyguts_t* yyg = (struct yyguts_t*) context->scanner; struct yyguts_t* yyg = (struct yyguts_t*) context->scanner;
......
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