diff options
Diffstat (limited to 'src/mesa/shader/slang/MachineIndependent/preprocessor/cpp.c')
-rwxr-xr-x | src/mesa/shader/slang/MachineIndependent/preprocessor/cpp.c | 1956 |
1 files changed, 978 insertions, 978 deletions
diff --git a/src/mesa/shader/slang/MachineIndependent/preprocessor/cpp.c b/src/mesa/shader/slang/MachineIndependent/preprocessor/cpp.c index 3787f5ac62..ade86c6a44 100755 --- a/src/mesa/shader/slang/MachineIndependent/preprocessor/cpp.c +++ b/src/mesa/shader/slang/MachineIndependent/preprocessor/cpp.c @@ -1,978 +1,978 @@ -//
-//Copyright (C) 2002-2004 3Dlabs Inc. Ltd.
-//All rights reserved.
-//
-//Redistribution and use in source and binary forms, with or without
-//modification, are permitted provided that the following conditions
-//are met:
-//
-// Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//
-// Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following
-// disclaimer in the documentation and/or other materials provided
-// with the distribution.
-//
-// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
-// contributors may be used to endorse or promote products derived
-// from this software without specific prior written permission.
-//
-//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-//POSSIBILITY OF SUCH DAMAGE.
-//
-/****************************************************************************\
-Copyright (c) 2002, NVIDIA Corporation.
-
-NVIDIA Corporation("NVIDIA") supplies this software to you in
-consideration of your agreement to the following terms, and your use,
-installation, modification or redistribution of this NVIDIA software
-constitutes acceptance of these terms. If you do not agree with these
-terms, please do not use, install, modify or redistribute this NVIDIA
-software.
-
-In consideration of your agreement to abide by the following terms, and
-subject to these terms, NVIDIA grants you a personal, non-exclusive
-license, under NVIDIA's copyrights in this original NVIDIA software (the
-"NVIDIA Software"), to use, reproduce, modify and redistribute the
-NVIDIA Software, with or without modifications, in source and/or binary
-forms; provided that if you redistribute the NVIDIA Software, you must
-retain the copyright notice of NVIDIA, this notice and the following
-text and disclaimers in all such redistributions of the NVIDIA Software.
-Neither the name, trademarks, service marks nor logos of NVIDIA
-Corporation may be used to endorse or promote products derived from the
-NVIDIA Software without specific prior written permission from NVIDIA.
-Except as expressly stated in this notice, no other rights or licenses
-express or implied, are granted by NVIDIA herein, including but not
-limited to any patent rights that may be infringed by your derivative
-works or by other works in which the NVIDIA Software may be
-incorporated. No hardware is licensed hereunder.
-
-THE NVIDIA SOFTWARE IS BEING PROVIDED ON AN "AS IS" BASIS, WITHOUT
-WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED,
-INCLUDING WITHOUT LIMITATION, WARRANTIES OR CONDITIONS OF TITLE,
-NON-INFRINGEMENT, MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
-ITS USE AND OPERATION EITHER ALONE OR IN COMBINATION WITH OTHER
-PRODUCTS.
-
-IN NO EVENT SHALL NVIDIA BE LIABLE FOR ANY SPECIAL, INDIRECT,
-INCIDENTAL, EXEMPLARY, CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
-TO, LOST PROFITS; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) OR ARISING IN ANY WAY
-OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF THE
-NVIDIA SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT,
-TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF
-NVIDIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-\****************************************************************************/
-//
-// cpp.c
-//
-
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-
-#include "slglobals.h"
-
-#include "slang_mesa.h"
-
-static int CPPif(yystypepp * yylvalpp);
-
-/* Don't use memory.c's replacements, as we clean up properly here */
-#undef malloc
-#undef free
-
-static int bindAtom = 0;
-static int constAtom = 0;
-static int defaultAtom = 0;
-static int defineAtom = 0;
-static int definedAtom = 0;
-static int elseAtom = 0;
-static int elifAtom = 0;
-static int endifAtom = 0;
-static int ifAtom = 0;
-static int ifdefAtom = 0;
-static int ifndefAtom = 0;
-static int includeAtom = 0;
-static int lineAtom = 0;
-static int pragmaAtom = 0;
-static int texunitAtom = 0;
-static int undefAtom = 0;
-static int errorAtom = 0;
-static int __LINE__Atom = 0;
-static int __FILE__Atom = 0;
-static int __VERSION__Atom = 0;
-static int versionAtom = 0;
-static int extensionAtom = 0;
-
-static Scope *macros = 0;
-#define MAX_MACRO_ARGS 64
-#define MAX_IF_NESTING 64
-
-static SourceLoc ifloc; /* outermost #if */
-
-int InitCPP(void)
-{
- char buffer[64], *t;
- const char *f;
- // Add various atoms needed by the CPP line scanner:
- bindAtom = LookUpAddString(atable, "bind");
- constAtom = LookUpAddString(atable, "const");
- defaultAtom = LookUpAddString(atable, "default");
- defineAtom = LookUpAddString(atable, "define");
- definedAtom = LookUpAddString(atable, "defined");
- elifAtom = LookUpAddString(atable, "elif");
- elseAtom = LookUpAddString(atable, "else");
- endifAtom = LookUpAddString(atable, "endif");
- ifAtom = LookUpAddString(atable, "if");
- ifdefAtom = LookUpAddString(atable, "ifdef");
- ifndefAtom = LookUpAddString(atable, "ifndef");
- includeAtom = LookUpAddString(atable, "include");
- lineAtom = LookUpAddString(atable, "line");
- pragmaAtom = LookUpAddString(atable, "pragma");
- texunitAtom = LookUpAddString(atable, "texunit");
- undefAtom = LookUpAddString(atable, "undef");
- errorAtom = LookUpAddString(atable, "error");
- __LINE__Atom = LookUpAddString(atable, "__LINE__");
- __FILE__Atom = LookUpAddString(atable, "__FILE__");
- __VERSION__Atom = LookUpAddString(atable, "__VERSION__");
- versionAtom = LookUpAddString(atable, "version");
- extensionAtom = LookUpAddString(atable, "extension");
- macros = NewScopeInPool(mem_CreatePool(0, 0));
- strcpy(buffer, "PROFILE_");
- t = buffer + strlen(buffer);
- f = cpp->options.profileString;
- while ((_mesa_isalnum(*f) || *f == '_') && t < buffer + sizeof(buffer) - 1)
- *t++ = toupper(*f++);
- *t = 0;
- return 1;
-} // InitCPP
-
-int FreeCPP(void)
-{
- if (macros)
- {
- mem_FreePool(macros->pool);
- macros = 0;
- }
-
- return 1;
-}
-
-int FinalCPP(void)
-{
- if (cpp->ifdepth)
- CPPErrorToInfoLog("#if mismatch");
- return 1;
-}
-
-static int CPPdefine(yystypepp * yylvalpp)
-{
- int token, name, args[MAX_MACRO_ARGS], argc;
- const char *message;
- MacroSymbol mac;
- Symbol *symb;
- SourceLoc dummyLoc;
- memset(&mac, 0, sizeof(mac));
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if (token != CPP_IDENTIFIER) {
- CPPErrorToInfoLog("#define");
- return token;
- }
- name = yylvalpp->sc_ident;
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if (token == '(' && !yylvalpp->sc_int) {
- // gather arguments
- argc = 0;
- do {
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if (argc == 0 && token == ')') break;
- if (token != CPP_IDENTIFIER) {
- CPPErrorToInfoLog("#define");
- return token;
- }
- if (argc < MAX_MACRO_ARGS)
- args[argc++] = yylvalpp->sc_ident;
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- } while (token == ',');
- if (token != ')') {
- CPPErrorToInfoLog("#define");
- return token;
- }
- mac.argc = argc;
- mac.args = mem_Alloc(macros->pool, argc * sizeof(int));
- memcpy(mac.args, args, argc * sizeof(int));
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- }
- mac.body = NewTokenStream(GetAtomString(atable, name));
- while (token != '\n') {
- while (token == '\\') {
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if (token == '\n')
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- else
- RecordToken(mac.body, '\\', yylvalpp);
- }
- RecordToken(mac.body, token, yylvalpp);
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- };
-
- symb = LookUpSymbol(macros, name);
- if (symb) {
- if (!symb->details.mac.undef) {
- // already defined -- need to make sure they are identical
- if (symb->details.mac.argc != mac.argc) goto error;
- for (argc=0; argc < mac.argc; argc++)
- if (symb->details.mac.args[argc] != mac.args[argc])
- goto error;
- RewindTokenStream(symb->details.mac.body);
- RewindTokenStream(mac.body);
- do {
- int old_lval, old_token;
- old_token = ReadToken(symb->details.mac.body, yylvalpp);
- old_lval = yylvalpp->sc_int;
- token = ReadToken(mac.body, yylvalpp);
- if (token != old_token || yylvalpp->sc_int != old_lval) {
- error:
- StoreStr("Macro Redefined");
- StoreStr(GetStringOfAtom(atable,name));
- message=GetStrfromTStr();
- DecLineNumber();
- CPPShInfoLogMsg(message);
- IncLineNumber();
- ResetTString();
- break; }
- } while (token > 0);
- }
- FreeMacro(&symb->details.mac);
- } else {
- dummyLoc.file = 0;
- dummyLoc.line = 0;
- symb = AddSymbol(&dummyLoc, macros, name, MACRO_S);
- }
- symb->details.mac = mac;
- return '\n';
-} // CPPdefine
-
-static int CPPundef(yystypepp * yylvalpp)
-{
- int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- Symbol *symb;
- if(token == '\n'){
- CPPErrorToInfoLog("#undef");
- return token;
- }
- if (token != CPP_IDENTIFIER)
- goto error;
- symb = LookUpSymbol(macros, yylvalpp->sc_ident);
- if (symb) {
- symb->details.mac.undef = 1;
- }
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if (token != '\n') {
- error:
- CPPErrorToInfoLog("#undef");
- }
- return token;
-} // CPPundef
-
-/* CPPelse -- skip forward to appropriate spot. This is actually used
-** to skip to and #endif after seeing an #else, AND to skip to a #else,
-** #elif, or #endif after a #if/#ifdef/#ifndef/#elif test was false
-*/
-
-static int CPPelse(int matchelse, yystypepp * yylvalpp)
-{
- int atom,depth=0;
- int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
-
- while (token > 0) {
- while (token != '\n')
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if ((token = cpp->currentInput->scan(cpp->currentInput, yylvalpp)) != '#')
- continue;
- if ((token = cpp->currentInput->scan(cpp->currentInput, yylvalpp)) != CPP_IDENTIFIER)
- continue;
- atom = yylvalpp->sc_ident;
- if (atom == ifAtom || atom == ifdefAtom || atom == ifndefAtom){
- depth++; cpp->ifdepth++; cpp->elsetracker++;
- }
- else if (atom == endifAtom) {
- if(--depth<=0){
- cpp->elsedepth[cpp->elsetracker]=0;
- --cpp->elsetracker;
- if (cpp->ifdepth)
- --cpp->ifdepth;
- break;
- }
- --cpp->elsetracker;
- --cpp->ifdepth;
- }
- else if (((int)(matchelse) != 0)&& depth==0) {
- if (atom == elseAtom ){
- break;
- }
- else if (atom == elifAtom) {
- /* we decrement cpp->ifdepth here, because CPPif will increment
- * it and we really want to leave it alone */
- if (cpp->ifdepth){
- --cpp->ifdepth;
- --cpp->elsetracker;
- }
- return CPPif(yylvalpp);
- }
- }
- else if((atom==elseAtom) && (!ChkCorrectElseNesting())){
- CPPErrorToInfoLog("#else after a #else");
- cpp->CompileError=1;
- }
- };
- return token;
-}
-
-enum eval_prec {
- MIN_PREC,
- COND, LOGOR, LOGAND, OR, XOR, AND, EQUAL, RELATION, SHIFT, ADD, MUL, UNARY,
- MAX_PREC
-};
-
-static int op_logor(int a, int b) { return a || b; }
-static int op_logand(int a, int b) { return a && b; }
-static int op_or(int a, int b) { return a | b; }
-static int op_xor(int a, int b) { return a ^ b; }
-static int op_and(int a, int b) { return a & b; }
-static int op_eq(int a, int b) { return a == b; }
-static int op_ne(int a, int b) { return a != b; }
-static int op_ge(int a, int b) { return a >= b; }
-static int op_le(int a, int b) { return a <= b; }
-static int op_gt(int a, int b) { return a > b; }
-static int op_lt(int a, int b) { return a < b; }
-static int op_shl(int a, int b) { return a << b; }
-static int op_shr(int a, int b) { return a >> b; }
-static int op_add(int a, int b) { return a + b; }
-static int op_sub(int a, int b) { return a - b; }
-static int op_mul(int a, int b) { return a * b; }
-static int op_div(int a, int b) { return a / b; }
-static int op_mod(int a, int b) { return a % b; }
-static int op_pos(int a) { return a; }
-static int op_neg(int a) { return -a; }
-static int op_cmpl(int a) { return ~a; }
-static int op_not(int a) { return !a; }
-
-struct {
- int token, prec, (*op)(int, int);
-} binop[] = {
- { CPP_OR_OP, LOGOR, op_logor },
- { CPP_AND_OP, LOGAND, op_logand },
- { '|', OR, op_or },
- { '^', XOR, op_xor },
- { '&', AND, op_and },
- { CPP_EQ_OP, EQUAL, op_eq },
- { CPP_NE_OP, EQUAL, op_ne },
- { '>', RELATION, op_gt },
- { CPP_GE_OP, RELATION, op_ge },
- { '<', RELATION, op_lt },
- { CPP_LE_OP, RELATION, op_le },
- { CPP_LEFT_OP, SHIFT, op_shl },
- { CPP_RIGHT_OP, SHIFT, op_shr },
- { '+', ADD, op_add },
- { '-', ADD, op_sub },
- { '*', MUL, op_mul },
- { '/', MUL, op_div },
- { '%', MUL, op_mod },
-};
-
-struct {
- int token, (*op)(int);
-} unop[] = {
- { '+', op_pos },
- { '-', op_neg },
- { '~', op_cmpl },
- { '!', op_not },
-};
-
-#define ALEN(A) (sizeof(A)/sizeof(A[0]))
-
-static int eval(int token, int prec, int *res, int *err, yystypepp * yylvalpp)
-{
- int i, val;
- Symbol *s;
- if (token == CPP_IDENTIFIER) {
- if (yylvalpp->sc_ident == definedAtom) {
- int needclose = 0;
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if (token == '(') {
- needclose = 1;
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- }
- if (token != CPP_IDENTIFIER)
- goto error;
- *res = (s = LookUpSymbol(macros, yylvalpp->sc_ident))
- ? !s->details.mac.undef : 0;
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if (needclose) {
- if (token != ')')
- goto error;
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- }
- } else if (MacroExpand(yylvalpp->sc_ident, yylvalpp)) {
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- return eval(token, prec, res, err, yylvalpp);
- } else {
- goto error;
- }
- } else if (token == CPP_INTCONSTANT) {
- *res = yylvalpp->sc_int;
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- } else if (token == '(') {
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- token = eval(token, MIN_PREC, res, err, yylvalpp);
- if (!*err) {
- if (token != ')')
- goto error;
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- }
- } else {
- for (i = ALEN(unop) - 1; i >= 0; i--) {
- if (unop[i].token == token)
- break;
- }
- if (i >= 0) {
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- token = eval(token, UNARY, res, err, yylvalpp);
- *res = unop[i].op(*res);
- } else {
- goto error;
- }
- }
- while (!*err) {
- if (token == ')' || token == '\n') break;
- for (i = ALEN(binop) - 1; i >= 0; i--) {
- if (binop[i].token == token)
- break;
- }
- if (i < 0 || binop[i].prec <= prec)
- break;
- val = *res;
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- token = eval(token, binop[i].prec, res, err, yylvalpp);
- *res = binop[i].op(val, *res);
- }
- return token;
-error:
- CPPErrorToInfoLog("#if");;
- *err = 1;
- *res = 0;
- return token;
-} // eval
-
-static int CPPif(yystypepp * yylvalpp) {
- int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- int res = 0, err = 0;
- cpp->elsetracker++;
- if (!cpp->ifdepth++)
- ifloc = *cpp->tokenLoc;
- if(cpp->ifdepth >MAX_IF_NESTING){
- CPPErrorToInfoLog("max #if nesting depth exceeded");
- return 0;
- }
- token = eval(token, MIN_PREC, &res, &err, yylvalpp);
- if (token != '\n') {
- CPPErrorToInfoLog("#if");
- } else if (!res && !err) {
- token = CPPelse(1, yylvalpp);
- }
- return token;
-} // CPPif
-
-static int CPPifdef(int defined, yystypepp * yylvalpp)
-{
- int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- int name = yylvalpp->sc_ident;
- if(++cpp->ifdepth >MAX_IF_NESTING){
- CPPErrorToInfoLog("max #if nesting depth exceeded");
- return 0;
- }
- cpp->elsetracker++;
- if (token != CPP_IDENTIFIER) {
- defined ? CPPErrorToInfoLog("ifdef"):CPPErrorToInfoLog("ifndef");
- } else {
- Symbol *s = LookUpSymbol(macros, name);
- if (((s && !s->details.mac.undef) ? 1 : 0) != defined)
- token = CPPelse(1, yylvalpp);
- }
- return token;
-} // CPPifdef
-
-static int CPPline(yystypepp * yylvalpp)
-{
- int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if(token=='\n'){
- DecLineNumber();
- CPPErrorToInfoLog("#line");
- IncLineNumber();
- return token;
- }
- else if (token == CPP_INTCONSTANT) {
- yylvalpp->sc_int=atoi(yylvalpp->symbol_name);
- SetLineNumber(yylvalpp->sc_int);
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
-
- if (token == CPP_INTCONSTANT) {
- yylvalpp->sc_int=atoi(yylvalpp->symbol_name);
- SetStringNumber(yylvalpp->sc_int);
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if(token!='\n')
- CPPErrorToInfoLog("#line");
- }
- else if (token == '\n'){
- return token;
- }
- else{
- CPPErrorToInfoLog("#line");
- }
- }
- else{
- CPPErrorToInfoLog("#line");
- }
- return token;
-}
-
-static int CPPerror(yystypepp * yylvalpp) {
-
- int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- const char *message;
-
- while (token != '\n') {
- if (token == CPP_FLOATCONSTANT || token == CPP_INTCONSTANT){
- StoreStr(yylvalpp->symbol_name);
- }else if(token == CPP_IDENTIFIER || token == CPP_STRCONSTANT){
- StoreStr(GetStringOfAtom(atable,yylvalpp->sc_ident));
- }else {
- StoreStr(GetStringOfAtom(atable,token));
- }
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- }
- DecLineNumber();
- //store this msg into the shader's information log..set the Compile Error flag!!!!
- message=GetStrfromTStr();
- CPPShInfoLogMsg(message);
- ResetTString();
- cpp->CompileError=1;
- IncLineNumber();
- return '\n';
-}//CPPerror
-
-static int CPPpragma(yystypepp * yylvalpp)
-{
- const char *SrcStr;
- const char *DestStr;
- int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
-
- if(token=='\n'){
- DecLineNumber();
- CPPErrorToInfoLog("#pragma");
- IncLineNumber();
- return token;
- }
- if (token != CPP_IDENTIFIER)goto error;
- SrcStr = GetAtomString(atable, yylvalpp->sc_ident);
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if (token == '(') {
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if (token != CPP_IDENTIFIER) goto error;
- DestStr = GetAtomString(atable, yylvalpp->sc_ident);
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if (token != ')') goto error;
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if(token!='\n')goto error;
- //make a call to CPP function MapStrings with SrcStr and DestStr.
- MapStrings(SrcStr,DestStr);
- }else{
-error:
- CPPErrorToInfoLog("#pragma");
- return token;
- }
-
- return token;
-} // CPPpragma
-
-#define GL2_VERSION_NUMBER 110
-
-static int CPPversion(yystypepp * yylvalpp)
-{
-
- int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
-
- if (cpp->notAVersionToken == 1)
- CPPShInfoLogMsg("#version must occur before any other statement in the program");
-
- if(token=='\n'){
- DecLineNumber();
- CPPErrorToInfoLog("#version");
- IncLineNumber();
- return token;
- }
- if (token != CPP_INTCONSTANT)
- CPPErrorToInfoLog("#version");
-
- yylvalpp->sc_int=atoi(yylvalpp->symbol_name);
- //SetVersionNumber(yylvalpp->sc_int);
-
- if (yylvalpp->sc_int != GL2_VERSION_NUMBER)
- CPPShInfoLogMsg("Version number not supported by GL2");
-
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
-
- if (token == '\n'){
- return token;
- }
- else{
- CPPErrorToInfoLog("#version");
- }
- return token;
-} // CPPversion
-
-static int CPPextension(yystypepp * yylvalpp)
-{
-
- int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- char extensionName[80];
-
- if(token=='\n'){
- DecLineNumber();
- CPPShInfoLogMsg("extension name not specified");
- IncLineNumber();
- return token;
- }
-
- if (token != CPP_IDENTIFIER)
- CPPErrorToInfoLog("#extension");
-
- strcpy(extensionName, GetAtomString(atable, yylvalpp->sc_ident));
-
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if (token != ':') {
- CPPShInfoLogMsg("':' missing after extension name");
- return token;
- }
-
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if (token != CPP_IDENTIFIER) {
- CPPShInfoLogMsg("behavior for extension not specified");
- return token;
- }
-
- updateExtensionBehavior(extensionName, GetAtomString(atable, yylvalpp->sc_ident));
-
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if (token == '\n'){
- return token;
- }
- else{
- CPPErrorToInfoLog("#extension");
- }
- return token;
-} // CPPextension
-
-int readCPPline(yystypepp * yylvalpp)
-{
- int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- const char *message;
- int isVersion = 0;
-
- if (token == CPP_IDENTIFIER) {
- if (yylvalpp->sc_ident == defineAtom) {
- token = CPPdefine(yylvalpp);
- } else if (yylvalpp->sc_ident == elseAtom) {
- if(ChkCorrectElseNesting()){
- if (!cpp->ifdepth ){
- CPPErrorToInfoLog("#else mismatch");
- cpp->CompileError=1;
- }
- token = CPPelse(0, yylvalpp);
- }else{
- CPPErrorToInfoLog("#else after a #else");
- cpp->ifdepth=0;
- cpp->notAVersionToken = 1;
- return 0;
- }
- } else if (yylvalpp->sc_ident == elifAtom) {
- if (!cpp->ifdepth){
- CPPErrorToInfoLog("#elif mismatch");
- cpp->CompileError=1;
- }
- token = CPPelse(0, yylvalpp);
- } else if (yylvalpp->sc_ident == endifAtom) {
- cpp->elsedepth[cpp->elsetracker]=0;
- --cpp->elsetracker;
- if (!cpp->ifdepth){
- CPPErrorToInfoLog("#endif mismatch");
- cpp->CompileError=1;
- }
- else
- --cpp->ifdepth;
- } else if (yylvalpp->sc_ident == ifAtom) {
- token = CPPif(yylvalpp);
- } else if (yylvalpp->sc_ident == ifdefAtom) {
- token = CPPifdef(1, yylvalpp);
- } else if (yylvalpp->sc_ident == ifndefAtom) {
- token = CPPifdef(0, yylvalpp);
- } else if (yylvalpp->sc_ident == lineAtom) {
- token = CPPline(yylvalpp);
- } else if (yylvalpp->sc_ident == pragmaAtom) {
- token = CPPpragma(yylvalpp);
- } else if (yylvalpp->sc_ident == undefAtom) {
- token = CPPundef(yylvalpp);
- } else if (yylvalpp->sc_ident == errorAtom) {
- token = CPPerror(yylvalpp);
- } else if (yylvalpp->sc_ident == versionAtom) {
- token = CPPversion(yylvalpp);
- isVersion = 1;
- } else if (yylvalpp->sc_ident == extensionAtom) {
- token = CPPextension(yylvalpp);
- } else {
- StoreStr("Invalid Directive");
- StoreStr(GetStringOfAtom(atable,yylvalpp->sc_ident));
- message=GetStrfromTStr();
- CPPShInfoLogMsg(message);
- ResetTString();
- }
- }
- while (token != '\n' && token != 0 && token != EOF) {
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- }
-
- cpp->notAVersionToken = !isVersion;
-
- return token;
-} // readCPPline
-
-void FreeMacro(MacroSymbol *s) {
- DeleteTokenStream(s->body);
-}
-
-static int eof_scan(InputSrc *in, yystypepp * yylvalpp) { return -1; }
-static void noop(InputSrc *in, int ch, yystypepp * yylvalpp) { }
-
-static void PushEofSrc() {
- InputSrc *in = malloc(sizeof(InputSrc));
- memset(in, 0, sizeof(InputSrc));
- in->scan = eof_scan;
- in->getch = eof_scan;
- in->ungetch = noop;
- in->prev = cpp->currentInput;
- cpp->currentInput = in;
-}
-
-static void PopEofSrc() {
- if (cpp->currentInput->scan == eof_scan) {
- InputSrc *in = cpp->currentInput;
- cpp->currentInput = in->prev;
- free(in);
- }
-}
-
-static TokenStream *PrescanMacroArg(TokenStream *a, yystypepp * yylvalpp) {
- int token;
- TokenStream *n;
- RewindTokenStream(a);
- do {
- token = ReadToken(a, yylvalpp);
- if (token == CPP_IDENTIFIER && LookUpSymbol(macros, yylvalpp->sc_ident))
- break;
- } while (token > 0);
- if (token <= 0) return a;
- n = NewTokenStream("macro arg");
- PushEofSrc();
- ReadFromTokenStream(a, 0, 0);
- while ((token = cpp->currentInput->scan(cpp->currentInput, yylvalpp)) > 0) {
- if (token == CPP_IDENTIFIER && MacroExpand(yylvalpp->sc_ident, yylvalpp))
- continue;
- RecordToken(n, token, yylvalpp);
- }
- PopEofSrc();
- DeleteTokenStream(a);
- return n;
-} // PrescanMacroArg
-
-typedef struct MacroInputSrc {
- InputSrc base;
- MacroSymbol *mac;
- TokenStream **args;
-} MacroInputSrc;
-
-/* macro_scan ---
-** return the next token for a macro expanion, handling macro args
-*/
-static int macro_scan(MacroInputSrc *in, yystypepp * yylvalpp) {
- int i;
- int token = ReadToken(in->mac->body, yylvalpp);
- if (token == CPP_IDENTIFIER) {
- for (i = in->mac->argc-1; i>=0; i--)
- if (in->mac->args[i] == yylvalpp->sc_ident) break;
- if (i >= 0) {
- ReadFromTokenStream(in->args[i], yylvalpp->sc_ident, 0);
- return cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- }
- }
- if (token > 0) return token;
- in->mac->busy = 0;
- cpp->currentInput = in->base.prev;
- if (in->args) {
- for (i=in->mac->argc-1; i>=0; i--)
- DeleteTokenStream(in->args[i]);
- free(in->args);
- }
- free(in);
- return cpp->currentInput->scan(cpp->currentInput, yylvalpp);
-} // macro_scan
-
-/* MacroExpand
-** check an identifier (atom) to see if it a macro that should be expanded.
-** If it is, push an InputSrc that will produce the appropriate expansion
-** and return TRUE. If not, return FALSE.
-*/
-
-int MacroExpand(int atom, yystypepp * yylvalpp)
-{
- Symbol *sym = LookUpSymbol(macros, atom);
- MacroInputSrc *in;
- int i,j, token, depth=0;
- const char *message;
- if (atom == __LINE__Atom) {
- yylvalpp->sc_int = GetLineNumber();
- sprintf(yylvalpp->symbol_name,"%d",yylvalpp->sc_int);
- UngetToken(CPP_INTCONSTANT, yylvalpp);
- return 1;
- }
- if (atom == __FILE__Atom) {
- yylvalpp->sc_int = GetStringNumber();
- sprintf(yylvalpp->symbol_name,"%d",yylvalpp->sc_int);
- UngetToken(CPP_INTCONSTANT, yylvalpp);
- return 1;
- }
- if (atom == __VERSION__Atom) {
- strcpy(yylvalpp->symbol_name,"100");
- yylvalpp->sc_int = atoi(yylvalpp->symbol_name);
- UngetToken(CPP_INTCONSTANT, yylvalpp);
- return 1;
- }
- if (!sym || sym->details.mac.undef) return 0;
- if (sym->details.mac.busy) return 0; // no recursive expansions
- in = malloc(sizeof(*in));
- memset(in, 0, sizeof(*in));
- in->base.scan = (void *)macro_scan;
- in->base.line = cpp->currentInput->line;
- in->base.name = cpp->currentInput->name;
- in->mac = &sym->details.mac;
- if (sym->details.mac.args) {
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if (token != '(') {
- UngetToken(token, yylvalpp);
- yylvalpp->sc_ident = atom;
- return 0;
- }
- in->args = malloc(in->mac->argc * sizeof(TokenStream *));
- for (i=0; i<in->mac->argc; i++)
- in->args[i] = NewTokenStream("macro arg");
- i=0;j=0;
- do{
- depth = 0;
- while(1) {
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if (token <= 0) {
- StoreStr("EOF in Macro ");
- StoreStr(GetStringOfAtom(atable,atom));
- message=GetStrfromTStr();
- CPPShInfoLogMsg(message);
- ResetTString();
- return 1;
- }
- if((in->mac->argc==0) && (token!=')')) break;
- if (depth == 0 && (token == ',' || token == ')')) break;
- if (token == '(') depth++;
- if (token == ')') depth--;
- RecordToken(in->args[i], token, yylvalpp);
- j=1;
- }
- if (token == ')') {
- if((in->mac->argc==1) &&j==0)
- break;
- i++;
- break;
- }
- i++;
- }while(i < in->mac->argc);
-
- if (i < in->mac->argc) {
- StoreStr("Too few args in Macro ");
- StoreStr(GetStringOfAtom(atable,atom));
- message=GetStrfromTStr();
- CPPShInfoLogMsg(message);
- ResetTString();
- } else if (token != ')') {
- depth=0;
- while (token >= 0 && (depth > 0 || token != ')')) {
- if (token == ')') depth--;
- token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
- if (token == '(') depth++;
- }
-
- if (token <= 0) {
- StoreStr("EOF in Macro ");
- StoreStr(GetStringOfAtom(atable,atom));
- message=GetStrfromTStr();
- CPPShInfoLogMsg(message);
- ResetTString();
- return 1;
- }
- StoreStr("Too many args in Macro ");
- StoreStr(GetStringOfAtom(atable,atom));
- message=GetStrfromTStr();
- CPPShInfoLogMsg(message);
- ResetTString();
- }
- for (i=0; i<in->mac->argc; i++) {
- in->args[i] = PrescanMacroArg(in->args[i], yylvalpp);
- }
- }
-#if 0
- printf(" <%s:%d>found macro %s\n", GetAtomString(atable, loc.file),
- loc.line, GetAtomString(atable, atom));
- for (i=0; i<in->mac->argc; i++) {
- printf("\targ %s = '", GetAtomString(atable, in->mac->args[i]));
- DumpTokenStream(stdout, in->args[i]);
- printf("'\n");
- }
-#endif
- /*retain the input source*/
- in->base.prev = cpp->currentInput;
- sym->details.mac.busy = 1;
- RewindTokenStream(sym->details.mac.body);
- cpp->currentInput = &in->base;
- return 1;
-} // MacroExpand
-
-int ChkCorrectElseNesting(void)
-{
- if(cpp->elsedepth[cpp->elsetracker]==0){
- cpp->elsedepth[cpp->elsetracker]=1;
- return 1;
- }
- return 0;
-}
-
-
+/* +//Copyright (C) 2002-2004 3Dlabs Inc. Ltd. +//All rights reserved. +// +//Redistribution and use in source and binary forms, with or without +//modification, are permitted provided that the following conditions +//are met: +// +// Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// +// Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following +// disclaimer in the documentation and/or other materials provided +// with the distribution. +// +// Neither the name of 3Dlabs Inc. Ltd. nor the names of its +// contributors may be used to endorse or promote products derived +// from this software without specific prior written permission. +// +//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE +//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +//POSSIBILITY OF SUCH DAMAGE. +*/ +/****************************************************************************\ +Copyright (c) 2002, NVIDIA Corporation. + +NVIDIA Corporation("NVIDIA") supplies this software to you in +consideration of your agreement to the following terms, and your use, +installation, modification or redistribution of this NVIDIA software +constitutes acceptance of these terms. If you do not agree with these +terms, please do not use, install, modify or redistribute this NVIDIA +software. + +In consideration of your agreement to abide by the following terms, and +subject to these terms, NVIDIA grants you a personal, non-exclusive +license, under NVIDIA's copyrights in this original NVIDIA software (the +"NVIDIA Software"), to use, reproduce, modify and redistribute the +NVIDIA Software, with or without modifications, in source and/or binary +forms; provided that if you redistribute the NVIDIA Software, you must +retain the copyright notice of NVIDIA, this notice and the following +text and disclaimers in all such redistributions of the NVIDIA Software. +Neither the name, trademarks, service marks nor logos of NVIDIA +Corporation may be used to endorse or promote products derived from the +NVIDIA Software without specific prior written permission from NVIDIA. +Except as expressly stated in this notice, no other rights or licenses +express or implied, are granted by NVIDIA herein, including but not +limited to any patent rights that may be infringed by your derivative +works or by other works in which the NVIDIA Software may be +incorporated. No hardware is licensed hereunder. + +THE NVIDIA SOFTWARE IS BEING PROVIDED ON AN "AS IS" BASIS, WITHOUT +WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED, +INCLUDING WITHOUT LIMITATION, WARRANTIES OR CONDITIONS OF TITLE, +NON-INFRINGEMENT, MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR +ITS USE AND OPERATION EITHER ALONE OR IN COMBINATION WITH OTHER +PRODUCTS. + +IN NO EVENT SHALL NVIDIA BE LIABLE FOR ANY SPECIAL, INDIRECT, +INCIDENTAL, EXEMPLARY, CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED +TO, LOST PROFITS; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) OR ARISING IN ANY WAY +OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF THE +NVIDIA SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, +TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF +NVIDIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +\****************************************************************************/ +/* +// cpp.c +*/ + +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <ctype.h> + +#include "slglobals.h" + +#include "slang_mesa.h" + +static int CPPif(yystypepp * yylvalpp); + +/* Don't use memory.c's replacements, as we clean up properly here */ +#undef malloc +#undef free + +static int bindAtom = 0; +static int constAtom = 0; +static int defaultAtom = 0; +static int defineAtom = 0; +static int definedAtom = 0; +static int elseAtom = 0; +static int elifAtom = 0; +static int endifAtom = 0; +static int ifAtom = 0; +static int ifdefAtom = 0; +static int ifndefAtom = 0; +static int includeAtom = 0; +static int lineAtom = 0; +static int pragmaAtom = 0; +static int texunitAtom = 0; +static int undefAtom = 0; +static int errorAtom = 0; +static int __LINE__Atom = 0; +static int __FILE__Atom = 0; +static int __VERSION__Atom = 0; +static int versionAtom = 0; +static int extensionAtom = 0; + +static Scope *macros = 0; +#define MAX_MACRO_ARGS 64 +#define MAX_IF_NESTING 64 + +static SourceLoc ifloc; /* outermost #if */ + +int InitCPP(void) +{ + char buffer[64], *t; + const char *f; + /* Add various atoms needed by the CPP line scanner: */ + bindAtom = LookUpAddString(atable, "bind"); + constAtom = LookUpAddString(atable, "const"); + defaultAtom = LookUpAddString(atable, "default"); + defineAtom = LookUpAddString(atable, "define"); + definedAtom = LookUpAddString(atable, "defined"); + elifAtom = LookUpAddString(atable, "elif"); + elseAtom = LookUpAddString(atable, "else"); + endifAtom = LookUpAddString(atable, "endif"); + ifAtom = LookUpAddString(atable, "if"); + ifdefAtom = LookUpAddString(atable, "ifdef"); + ifndefAtom = LookUpAddString(atable, "ifndef"); + includeAtom = LookUpAddString(atable, "include"); + lineAtom = LookUpAddString(atable, "line"); + pragmaAtom = LookUpAddString(atable, "pragma"); + texunitAtom = LookUpAddString(atable, "texunit"); + undefAtom = LookUpAddString(atable, "undef"); + errorAtom = LookUpAddString(atable, "error"); + __LINE__Atom = LookUpAddString(atable, "__LINE__"); + __FILE__Atom = LookUpAddString(atable, "__FILE__"); + __VERSION__Atom = LookUpAddString(atable, "__VERSION__"); + versionAtom = LookUpAddString(atable, "version"); + extensionAtom = LookUpAddString(atable, "extension"); + macros = NewScopeInPool(mem_CreatePool(0, 0)); + strcpy(buffer, "PROFILE_"); + t = buffer + strlen(buffer); + f = cpp->options.profileString; + while ((_mesa_isalnum(*f) || *f == '_') && t < buffer + sizeof(buffer) - 1) + *t++ = toupper(*f++); + *t = 0; + return 1; +} /* InitCPP */ + +int FreeCPP(void) +{ + if (macros) + { + mem_FreePool(macros->pool); + macros = 0; + } + + return 1; +} + +int FinalCPP(void) +{ + if (cpp->ifdepth) + CPPErrorToInfoLog("#if mismatch"); + return 1; +} + +static int CPPdefine(yystypepp * yylvalpp) +{ + int token, name, args[MAX_MACRO_ARGS], argc; + const char *message; + MacroSymbol mac; + Symbol *symb; + SourceLoc dummyLoc; + memset(&mac, 0, sizeof(mac)); + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if (token != CPP_IDENTIFIER) { + CPPErrorToInfoLog("#define"); + return token; + } + name = yylvalpp->sc_ident; + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if (token == '(' && !yylvalpp->sc_int) { + /* gather arguments */ + argc = 0; + do { + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if (argc == 0 && token == ')') break; + if (token != CPP_IDENTIFIER) { + CPPErrorToInfoLog("#define"); + return token; + } + if (argc < MAX_MACRO_ARGS) + args[argc++] = yylvalpp->sc_ident; + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + } while (token == ','); + if (token != ')') { + CPPErrorToInfoLog("#define"); + return token; + } + mac.argc = argc; + mac.args = mem_Alloc(macros->pool, argc * sizeof(int)); + memcpy(mac.args, args, argc * sizeof(int)); + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + } + mac.body = NewTokenStream(GetAtomString(atable, name)); + while (token != '\n') { + while (token == '\\') { + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if (token == '\n') + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + else + RecordToken(mac.body, '\\', yylvalpp); + } + RecordToken(mac.body, token, yylvalpp); + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + }; + + symb = LookUpSymbol(macros, name); + if (symb) { + if (!symb->details.mac.undef) { + /* already defined -- need to make sure they are identical */ + if (symb->details.mac.argc != mac.argc) goto error; + for (argc=0; argc < mac.argc; argc++) + if (symb->details.mac.args[argc] != mac.args[argc]) + goto error; + RewindTokenStream(symb->details.mac.body); + RewindTokenStream(mac.body); + do { + int old_lval, old_token; + old_token = ReadToken(symb->details.mac.body, yylvalpp); + old_lval = yylvalpp->sc_int; + token = ReadToken(mac.body, yylvalpp); + if (token != old_token || yylvalpp->sc_int != old_lval) { + error: + StoreStr("Macro Redefined"); + StoreStr(GetStringOfAtom(atable,name)); + message=GetStrfromTStr(); + DecLineNumber(); + CPPShInfoLogMsg(message); + IncLineNumber(); + ResetTString(); + break; } + } while (token > 0); + } + FreeMacro(&symb->details.mac); + } else { + dummyLoc.file = 0; + dummyLoc.line = 0; + symb = AddSymbol(&dummyLoc, macros, name, MACRO_S); + } + symb->details.mac = mac; + return '\n'; +} /* CPPdefine */ + +static int CPPundef(yystypepp * yylvalpp) +{ + int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + Symbol *symb; + if(token == '\n'){ + CPPErrorToInfoLog("#undef"); + return token; + } + if (token != CPP_IDENTIFIER) + goto error; + symb = LookUpSymbol(macros, yylvalpp->sc_ident); + if (symb) { + symb->details.mac.undef = 1; + } + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if (token != '\n') { + error: + CPPErrorToInfoLog("#undef"); + } + return token; +} /* CPPundef */ + +/* CPPelse -- skip forward to appropriate spot. This is actually used +** to skip to and #endif after seeing an #else, AND to skip to a #else, +** #elif, or #endif after a #if/#ifdef/#ifndef/#elif test was false +*/ + +static int CPPelse(int matchelse, yystypepp * yylvalpp) +{ + int atom,depth=0; + int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + + while (token > 0) { + while (token != '\n') + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if ((token = cpp->currentInput->scan(cpp->currentInput, yylvalpp)) != '#') + continue; + if ((token = cpp->currentInput->scan(cpp->currentInput, yylvalpp)) != CPP_IDENTIFIER) + continue; + atom = yylvalpp->sc_ident; + if (atom == ifAtom || atom == ifdefAtom || atom == ifndefAtom){ + depth++; cpp->ifdepth++; cpp->elsetracker++; + } + else if (atom == endifAtom) { + if(--depth<=0){ + cpp->elsedepth[cpp->elsetracker]=0; + --cpp->elsetracker; + if (cpp->ifdepth) + --cpp->ifdepth; + break; + } + --cpp->elsetracker; + --cpp->ifdepth; + } + else if (((int)(matchelse) != 0)&& depth==0) { + if (atom == elseAtom ){ + break; + } + else if (atom == elifAtom) { + /* we decrement cpp->ifdepth here, because CPPif will increment + * it and we really want to leave it alone */ + if (cpp->ifdepth){ + --cpp->ifdepth; + --cpp->elsetracker; + } + return CPPif(yylvalpp); + } + } + else if((atom==elseAtom) && (!ChkCorrectElseNesting())){ + CPPErrorToInfoLog("#else after a #else"); + cpp->CompileError=1; + } + }; + return token; +} + +enum eval_prec { + MIN_PREC, + COND, LOGOR, LOGAND, OR, XOR, AND, EQUAL, RELATION, SHIFT, ADD, MUL, UNARY, + MAX_PREC +}; + +static int op_logor(int a, int b) { return a || b; } +static int op_logand(int a, int b) { return a && b; } +static int op_or(int a, int b) { return a | b; } +static int op_xor(int a, int b) { return a ^ b; } +static int op_and(int a, int b) { return a & b; } +static int op_eq(int a, int b) { return a == b; } +static int op_ne(int a, int b) { return a != b; } +static int op_ge(int a, int b) { return a >= b; } +static int op_le(int a, int b) { return a <= b; } +static int op_gt(int a, int b) { return a > b; } +static int op_lt(int a, int b) { return a < b; } +static int op_shl(int a, int b) { return a << b; } +static int op_shr(int a, int b) { return a >> b; } +static int op_add(int a, int b) { return a + b; } +static int op_sub(int a, int b) { return a - b; } +static int op_mul(int a, int b) { return a * b; } +static int op_div(int a, int b) { return a / b; } +static int op_mod(int a, int b) { return a % b; } +static int op_pos(int a) { return a; } +static int op_neg(int a) { return -a; } +static int op_cmpl(int a) { return ~a; } +static int op_not(int a) { return !a; } + +struct { + int token, prec, (*op)(int, int); +} binop[] = { + { CPP_OR_OP, LOGOR, op_logor }, + { CPP_AND_OP, LOGAND, op_logand }, + { '|', OR, op_or }, + { '^', XOR, op_xor }, + { '&', AND, op_and }, + { CPP_EQ_OP, EQUAL, op_eq }, + { CPP_NE_OP, EQUAL, op_ne }, + { '>', RELATION, op_gt }, + { CPP_GE_OP, RELATION, op_ge }, + { '<', RELATION, op_lt }, + { CPP_LE_OP, RELATION, op_le }, + { CPP_LEFT_OP, SHIFT, op_shl }, + { CPP_RIGHT_OP, SHIFT, op_shr }, + { '+', ADD, op_add }, + { '-', ADD, op_sub }, + { '*', MUL, op_mul }, + { '/', MUL, op_div }, + { '%', MUL, op_mod }, +}; + +struct { + int token, (*op)(int); +} unop[] = { + { '+', op_pos }, + { '-', op_neg }, + { '~', op_cmpl }, + { '!', op_not }, +}; + +#define ALEN(A) (sizeof(A)/sizeof(A[0])) + +static int eval(int token, int prec, int *res, int *err, yystypepp * yylvalpp) +{ + int i, val; + Symbol *s; + if (token == CPP_IDENTIFIER) { + if (yylvalpp->sc_ident == definedAtom) { + int needclose = 0; + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if (token == '(') { + needclose = 1; + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + } + if (token != CPP_IDENTIFIER) + goto error; + *res = (s = LookUpSymbol(macros, yylvalpp->sc_ident)) + ? !s->details.mac.undef : 0; + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if (needclose) { + if (token != ')') + goto error; + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + } + } else if (MacroExpand(yylvalpp->sc_ident, yylvalpp)) { + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + return eval(token, prec, res, err, yylvalpp); + } else { + goto error; + } + } else if (token == CPP_INTCONSTANT) { + *res = yylvalpp->sc_int; + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + } else if (token == '(') { + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + token = eval(token, MIN_PREC, res, err, yylvalpp); + if (!*err) { + if (token != ')') + goto error; + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + } + } else { + for (i = ALEN(unop) - 1; i >= 0; i--) { + if (unop[i].token == token) + break; + } + if (i >= 0) { + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + token = eval(token, UNARY, res, err, yylvalpp); + *res = unop[i].op(*res); + } else { + goto error; + } + } + while (!*err) { + if (token == ')' || token == '\n') break; + for (i = ALEN(binop) - 1; i >= 0; i--) { + if (binop[i].token == token) + break; + } + if (i < 0 || binop[i].prec <= prec) + break; + val = *res; + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + token = eval(token, binop[i].prec, res, err, yylvalpp); + *res = binop[i].op(val, *res); + } + return token; +error: + CPPErrorToInfoLog("#if");; + *err = 1; + *res = 0; + return token; +} /* eval */ + +static int CPPif(yystypepp * yylvalpp) { + int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + int res = 0, err = 0; + cpp->elsetracker++; + if (!cpp->ifdepth++) + ifloc = *cpp->tokenLoc; + if(cpp->ifdepth >MAX_IF_NESTING){ + CPPErrorToInfoLog("max #if nesting depth exceeded"); + return 0; + } + token = eval(token, MIN_PREC, &res, &err, yylvalpp); + if (token != '\n') { + CPPErrorToInfoLog("#if"); + } else if (!res && !err) { + token = CPPelse(1, yylvalpp); + } + return token; +} /* CPPif */ + +static int CPPifdef(int defined, yystypepp * yylvalpp) +{ + int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + int name = yylvalpp->sc_ident; + if(++cpp->ifdepth >MAX_IF_NESTING){ + CPPErrorToInfoLog("max #if nesting depth exceeded"); + return 0; + } + cpp->elsetracker++; + if (token != CPP_IDENTIFIER) { + defined ? CPPErrorToInfoLog("ifdef"):CPPErrorToInfoLog("ifndef"); + } else { + Symbol *s = LookUpSymbol(macros, name); + if (((s && !s->details.mac.undef) ? 1 : 0) != defined) + token = CPPelse(1, yylvalpp); + } + return token; +} /* CPPifdef */ + +static int CPPline(yystypepp * yylvalpp) +{ + int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if(token=='\n'){ + DecLineNumber(); + CPPErrorToInfoLog("#line"); + IncLineNumber(); + return token; + } + else if (token == CPP_INTCONSTANT) { + yylvalpp->sc_int=atoi(yylvalpp->symbol_name); + SetLineNumber(yylvalpp->sc_int); + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + + if (token == CPP_INTCONSTANT) { + yylvalpp->sc_int=atoi(yylvalpp->symbol_name); + SetStringNumber(yylvalpp->sc_int); + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if(token!='\n') + CPPErrorToInfoLog("#line"); + } + else if (token == '\n'){ + return token; + } + else{ + CPPErrorToInfoLog("#line"); + } + } + else{ + CPPErrorToInfoLog("#line"); + } + return token; +} + +static int CPPerror(yystypepp * yylvalpp) { + + int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + const char *message; + + while (token != '\n') { + if (token == CPP_FLOATCONSTANT || token == CPP_INTCONSTANT){ + StoreStr(yylvalpp->symbol_name); + }else if(token == CPP_IDENTIFIER || token == CPP_STRCONSTANT){ + StoreStr(GetStringOfAtom(atable,yylvalpp->sc_ident)); + }else { + StoreStr(GetStringOfAtom(atable,token)); + } + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + } + DecLineNumber(); + /* store this msg into the shader's information log..set the Compile Error flag!!!! */ + message=GetStrfromTStr(); + CPPShInfoLogMsg(message); + ResetTString(); + cpp->CompileError=1; + IncLineNumber(); + return '\n'; +}/* CPPerror */ + +static int CPPpragma(yystypepp * yylvalpp) +{ + const char *SrcStr; + const char *DestStr; + int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + + if(token=='\n'){ + DecLineNumber(); + CPPErrorToInfoLog("#pragma"); + IncLineNumber(); + return token; + } + if (token != CPP_IDENTIFIER)goto error; + SrcStr = GetAtomString(atable, yylvalpp->sc_ident); + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if (token == '(') { + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if (token != CPP_IDENTIFIER) goto error; + DestStr = GetAtomString(atable, yylvalpp->sc_ident); + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if (token != ')') goto error; + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if(token!='\n')goto error; + /* make a call to CPP function MapStrings with SrcStr and DestStr. */ + MapStrings(SrcStr,DestStr); + }else{ +error: + CPPErrorToInfoLog("#pragma"); + return token; + } + + return token; +} /* CPPpragma */ + +#define GL2_VERSION_NUMBER 110 + +static int CPPversion(yystypepp * yylvalpp) +{ + + int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + + if (cpp->notAVersionToken == 1) + CPPShInfoLogMsg("#version must occur before any other statement in the program"); + + if(token=='\n'){ + DecLineNumber(); + CPPErrorToInfoLog("#version"); + IncLineNumber(); + return token; + } + if (token != CPP_INTCONSTANT) + CPPErrorToInfoLog("#version"); + + yylvalpp->sc_int=atoi(yylvalpp->symbol_name); + /* SetVersionNumber(yylvalpp->sc_int); */ + + if (yylvalpp->sc_int != GL2_VERSION_NUMBER) + CPPShInfoLogMsg("Version number not supported by GL2"); + + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + + if (token == '\n'){ + return token; + } + else{ + CPPErrorToInfoLog("#version"); + } + return token; +} /* CPPversion */ + +static int CPPextension(yystypepp * yylvalpp) +{ + + int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + char extensionName[80]; + + if(token=='\n'){ + DecLineNumber(); + CPPShInfoLogMsg("extension name not specified"); + IncLineNumber(); + return token; + } + + if (token != CPP_IDENTIFIER) + CPPErrorToInfoLog("#extension"); + + strcpy(extensionName, GetAtomString(atable, yylvalpp->sc_ident)); + + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if (token != ':') { + CPPShInfoLogMsg("':' missing after extension name"); + return token; + } + + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if (token != CPP_IDENTIFIER) { + CPPShInfoLogMsg("behavior for extension not specified"); + return token; + } + + updateExtensionBehavior(extensionName, GetAtomString(atable, yylvalpp->sc_ident)); + + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if (token == '\n'){ + return token; + } + else{ + CPPErrorToInfoLog("#extension"); + } + return token; +} /* CPPextension */ + +int readCPPline(yystypepp * yylvalpp) +{ + int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + const char *message; + int isVersion = 0; + + if (token == CPP_IDENTIFIER) { + if (yylvalpp->sc_ident == defineAtom) { + token = CPPdefine(yylvalpp); + } else if (yylvalpp->sc_ident == elseAtom) { + if(ChkCorrectElseNesting()){ + if (!cpp->ifdepth ){ + CPPErrorToInfoLog("#else mismatch"); + cpp->CompileError=1; + } + token = CPPelse(0, yylvalpp); + }else{ + CPPErrorToInfoLog("#else after a #else"); + cpp->ifdepth=0; + cpp->notAVersionToken = 1; + return 0; + } + } else if (yylvalpp->sc_ident == elifAtom) { + if (!cpp->ifdepth){ + CPPErrorToInfoLog("#elif mismatch"); + cpp->CompileError=1; + } + token = CPPelse(0, yylvalpp); + } else if (yylvalpp->sc_ident == endifAtom) { + cpp->elsedepth[cpp->elsetracker]=0; + --cpp->elsetracker; + if (!cpp->ifdepth){ + CPPErrorToInfoLog("#endif mismatch"); + cpp->CompileError=1; + } + else + --cpp->ifdepth; + } else if (yylvalpp->sc_ident == ifAtom) { + token = CPPif(yylvalpp); + } else if (yylvalpp->sc_ident == ifdefAtom) { + token = CPPifdef(1, yylvalpp); + } else if (yylvalpp->sc_ident == ifndefAtom) { + token = CPPifdef(0, yylvalpp); + } else if (yylvalpp->sc_ident == lineAtom) { + token = CPPline(yylvalpp); + } else if (yylvalpp->sc_ident == pragmaAtom) { + token = CPPpragma(yylvalpp); + } else if (yylvalpp->sc_ident == undefAtom) { + token = CPPundef(yylvalpp); + } else if (yylvalpp->sc_ident == errorAtom) { + token = CPPerror(yylvalpp); + } else if (yylvalpp->sc_ident == versionAtom) { + token = CPPversion(yylvalpp); + isVersion = 1; + } else if (yylvalpp->sc_ident == extensionAtom) { + token = CPPextension(yylvalpp); + } else { + StoreStr("Invalid Directive"); + StoreStr(GetStringOfAtom(atable,yylvalpp->sc_ident)); + message=GetStrfromTStr(); + CPPShInfoLogMsg(message); + ResetTString(); + } + } + while (token != '\n' && token != 0 && token != EOF) { + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + } + + cpp->notAVersionToken = !isVersion; + + return token; +} /* readCPPline */ + +void FreeMacro(MacroSymbol *s) { + DeleteTokenStream(s->body); +} + +static int eof_scan(InputSrc *in, yystypepp * yylvalpp) { return -1; } +static void noop(InputSrc *in, int ch, yystypepp * yylvalpp) { } + +static void PushEofSrc() { + InputSrc *in = malloc(sizeof(InputSrc)); + memset(in, 0, sizeof(InputSrc)); + in->scan = eof_scan; + in->getch = eof_scan; + in->ungetch = noop; + in->prev = cpp->currentInput; + cpp->currentInput = in; +} + +static void PopEofSrc() { + if (cpp->currentInput->scan == eof_scan) { + InputSrc *in = cpp->currentInput; + cpp->currentInput = in->prev; + free(in); + } +} + +static TokenStream *PrescanMacroArg(TokenStream *a, yystypepp * yylvalpp) { + int token; + TokenStream *n; + RewindTokenStream(a); + do { + token = ReadToken(a, yylvalpp); + if (token == CPP_IDENTIFIER && LookUpSymbol(macros, yylvalpp->sc_ident)) + break; + } while (token > 0); + if (token <= 0) return a; + n = NewTokenStream("macro arg"); + PushEofSrc(); + ReadFromTokenStream(a, 0, 0); + while ((token = cpp->currentInput->scan(cpp->currentInput, yylvalpp)) > 0) { + if (token == CPP_IDENTIFIER && MacroExpand(yylvalpp->sc_ident, yylvalpp)) + continue; + RecordToken(n, token, yylvalpp); + } + PopEofSrc(); + DeleteTokenStream(a); + return n; +} /* PrescanMacroArg */ + +typedef struct MacroInputSrc { + InputSrc base; + MacroSymbol *mac; + TokenStream **args; +} MacroInputSrc; + +/* macro_scan --- +** return the next token for a macro expanion, handling macro args +*/ +static int macro_scan(MacroInputSrc *in, yystypepp * yylvalpp) { + int i; + int token = ReadToken(in->mac->body, yylvalpp); + if (token == CPP_IDENTIFIER) { + for (i = in->mac->argc-1; i>=0; i--) + if (in->mac->args[i] == yylvalpp->sc_ident) break; + if (i >= 0) { + ReadFromTokenStream(in->args[i], yylvalpp->sc_ident, 0); + return cpp->currentInput->scan(cpp->currentInput, yylvalpp); + } + } + if (token > 0) return token; + in->mac->busy = 0; + cpp->currentInput = in->base.prev; + if (in->args) { + for (i=in->mac->argc-1; i>=0; i--) + DeleteTokenStream(in->args[i]); + free(in->args); + } + free(in); + return cpp->currentInput->scan(cpp->currentInput, yylvalpp); +} /* macro_scan */ + +/* MacroExpand +** check an identifier (atom) to see if it a macro that should be expanded. +** If it is, push an InputSrc that will produce the appropriate expansion +** and return TRUE. If not, return FALSE. +*/ + +int MacroExpand(int atom, yystypepp * yylvalpp) +{ + Symbol *sym = LookUpSymbol(macros, atom); + MacroInputSrc *in; + int i,j, token, depth=0; + const char *message; + if (atom == __LINE__Atom) { + yylvalpp->sc_int = GetLineNumber(); + sprintf(yylvalpp->symbol_name,"%d",yylvalpp->sc_int); + UngetToken(CPP_INTCONSTANT, yylvalpp); + return 1; + } + if (atom == __FILE__Atom) { + yylvalpp->sc_int = GetStringNumber(); + sprintf(yylvalpp->symbol_name,"%d",yylvalpp->sc_int); + UngetToken(CPP_INTCONSTANT, yylvalpp); + return 1; + } + if (atom == __VERSION__Atom) { + strcpy(yylvalpp->symbol_name,"100"); + yylvalpp->sc_int = atoi(yylvalpp->symbol_name); + UngetToken(CPP_INTCONSTANT, yylvalpp); + return 1; + } + if (!sym || sym->details.mac.undef) return 0; + if (sym->details.mac.busy) return 0; /* no recursive expansions */ + in = malloc(sizeof(*in)); + memset(in, 0, sizeof(*in)); + in->base.scan = (void *)macro_scan; + in->base.line = cpp->currentInput->line; + in->base.name = cpp->currentInput->name; + in->mac = &sym->details.mac; + if (sym->details.mac.args) { + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if (token != '(') { + UngetToken(token, yylvalpp); + yylvalpp->sc_ident = atom; + return 0; + } + in->args = malloc(in->mac->argc * sizeof(TokenStream *)); + for (i=0; i<in->mac->argc; i++) + in->args[i] = NewTokenStream("macro arg"); + i=0;j=0; + do{ + depth = 0; + while(1) { + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if (token <= 0) { + StoreStr("EOF in Macro "); + StoreStr(GetStringOfAtom(atable,atom)); + message=GetStrfromTStr(); + CPPShInfoLogMsg(message); + ResetTString(); + return 1; + } + if((in->mac->argc==0) && (token!=')')) break; + if (depth == 0 && (token == ',' || token == ')')) break; + if (token == '(') depth++; + if (token == ')') depth--; + RecordToken(in->args[i], token, yylvalpp); + j=1; + } + if (token == ')') { + if((in->mac->argc==1) &&j==0) + break; + i++; + break; + } + i++; + }while(i < in->mac->argc); + + if (i < in->mac->argc) { + StoreStr("Too few args in Macro "); + StoreStr(GetStringOfAtom(atable,atom)); + message=GetStrfromTStr(); + CPPShInfoLogMsg(message); + ResetTString(); + } else if (token != ')') { + depth=0; + while (token >= 0 && (depth > 0 || token != ')')) { + if (token == ')') depth--; + token = cpp->currentInput->scan(cpp->currentInput, yylvalpp); + if (token == '(') depth++; + } + + if (token <= 0) { + StoreStr("EOF in Macro "); + StoreStr(GetStringOfAtom(atable,atom)); + message=GetStrfromTStr(); + CPPShInfoLogMsg(message); + ResetTString(); + return 1; + } + StoreStr("Too many args in Macro "); + StoreStr(GetStringOfAtom(atable,atom)); + message=GetStrfromTStr(); + CPPShInfoLogMsg(message); + ResetTString(); + } + for (i=0; i<in->mac->argc; i++) { + in->args[i] = PrescanMacroArg(in->args[i], yylvalpp); + } + } +#if 0 + printf(" <%s:%d>found macro %s\n", GetAtomString(atable, loc.file), + loc.line, GetAtomString(atable, atom)); + for (i=0; i<in->mac->argc; i++) { + printf("\targ %s = '", GetAtomString(atable, in->mac->args[i])); + DumpTokenStream(stdout, in->args[i]); + printf("'\n"); + } +#endif + /*retain the input source*/ + in->base.prev = cpp->currentInput; + sym->details.mac.busy = 1; + RewindTokenStream(sym->details.mac.body); + cpp->currentInput = &in->base; + return 1; +} /* MacroExpand */ + +int ChkCorrectElseNesting(void) +{ + if(cpp->elsedepth[cpp->elsetracker]==0){ + cpp->elsedepth[cpp->elsetracker]=1; + return 1; + } + return 0; +} + + |