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-rw-r--r--src/3rdparty/angle/src/compiler/preprocessor/cpp.c1118
1 files changed, 1118 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/compiler/preprocessor/cpp.c b/src/3rdparty/angle/src/compiler/preprocessor/cpp.c
new file mode 100644
index 0000000000..8a1076b9df
--- /dev/null
+++ b/src/3rdparty/angle/src/compiler/preprocessor/cpp.c
@@ -0,0 +1,1118 @@
+/****************************************************************************\
+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 "common/angleutils.h"
+#include "compiler/preprocessor/slglobals.h"
+
+#if defined(_MSC_VER)
+#pragma warning(disable: 4054)
+#pragma warning(disable: 4152)
+#pragma warning(disable: 4706)
+#endif
+
+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
+
+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 ((isalnum(*f) || *f == '_') && t < buffer + sizeof(buffer) - 1)
+ *t++ = toupper(*f++);
+ *t = 0;
+
+ PredefineIntMacro("GL_ES", 1);
+ PredefineIntMacro("GL_FRAGMENT_PRECISION_HIGH", 1);
+
+ 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), macros->pool);
+ while (token != '\n') {
+ if (token == '\\') {
+ CPPErrorToInfoLog("The line continuation character (\\) is not part of the OpenGL ES Shading Language");
+ return token;
+ } else if (token <= 0) { // EOF or error
+ CPPErrorToInfoLog("unexpected end of input in #define preprocessor directive - expected a newline");
+ return 0;
+ }
+ 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) {
+ if (token != '#') {
+ while (token != '\n') {
+ token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
+ if (token <= 0) { // EOF or error
+ CPPErrorToInfoLog("unexpected end of input in #else preprocessor directive - expected a newline");
+ return 0;
+ }
+ }
+ 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++;
+ if (cpp->ifdepth > MAX_IF_NESTING) {
+ CPPErrorToInfoLog("max #if nesting depth exceeded");
+ cpp->CompileError = 1;
+ return 0;
+ }
+ // sanity check elsetracker
+ if (cpp->elsetracker < 0 || cpp->elsetracker >= MAX_IF_NESTING) {
+ CPPErrorToInfoLog("mismatched #if/#endif statements");
+ cpp->CompileError = 1;
+ return 0;
+ }
+ cpp->elsedepth[cpp->elsetracker] = 0;
+ }
+ else if (atom == endifAtom) {
+ if(--depth<0){
+ if (cpp->elsetracker)
+ --cpp->elsetracker;
+ if (cpp->ifdepth)
+ --cpp->ifdepth;
+ break;
+ }
+ --cpp->elsetracker;
+ --cpp->ifdepth;
+ }
+ else if (((int)(matchelse) != 0)&& depth==0) {
+ if (atom == elseAtom ) {
+ token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
+ if (token != '\n') {
+ CPPWarningToInfoLog("unexpected tokens following #else preprocessor directive - expected a newline");
+ while (token != '\n') {
+ token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
+ if (token <= 0) { // EOF or error
+ CPPErrorToInfoLog("unexpected end of input following #else preprocessor directive - expected a newline");
+ return 0;
+ }
+ }
+ }
+ 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 0;
+ }
+ };
+ 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);
+
+ if (binop[i].op == op_div || binop[i].op == op_mod)
+ {
+ if (*res == 0)
+ {
+ CPPErrorToInfoLog("preprocessor divide or modulo by zero");
+ *err = 1;
+ return token;
+ }
+ }
+
+ *res = binop[i].op(val, *res);
+ }
+ return token;
+error:
+ CPPErrorToInfoLog("incorrect preprocessor directive");
+ *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;
+
+ if (!cpp->ifdepth++)
+ ifloc = *cpp->tokenLoc;
+ if(cpp->ifdepth > MAX_IF_NESTING){
+ CPPErrorToInfoLog("max #if nesting depth exceeded");
+ cpp->CompileError = 1;
+ return 0;
+ }
+ cpp->elsetracker++;
+ // sanity check elsetracker
+ if (cpp->elsetracker < 0 || cpp->elsetracker >= MAX_IF_NESTING) {
+ CPPErrorToInfoLog("mismatched #if/#endif statements");
+ cpp->CompileError = 1;
+ return 0;
+ }
+ cpp->elsedepth[cpp->elsetracker] = 0;
+
+ token = eval(token, MIN_PREC, &res, &err, yylvalpp);
+ if (token != '\n') {
+ CPPWarningToInfoLog("unexpected tokens following #if preprocessor directive - expected a newline");
+ while (token != '\n') {
+ token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
+ if (token <= 0) { // EOF or error
+ CPPErrorToInfoLog("unexpected end of input in #if preprocessor directive - expected a newline");
+ return 0;
+ }
+ }
+ }
+ 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");
+ cpp->CompileError = 1;
+ return 0;
+ }
+ cpp->elsetracker++;
+ // sanity check elsetracker
+ if (cpp->elsetracker < 0 || cpp->elsetracker >= MAX_IF_NESTING) {
+ CPPErrorToInfoLog("mismatched #if/#endif statements");
+ cpp->CompileError = 1;
+ return 0;
+ }
+ cpp->elsedepth[cpp->elsetracker] = 0;
+
+ if (token != CPP_IDENTIFIER) {
+ defined ? CPPErrorToInfoLog("ifdef"):CPPErrorToInfoLog("ifndef");
+ } else {
+ Symbol *s = LookUpSymbol(macros, name);
+ token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
+ if (token != '\n') {
+ CPPWarningToInfoLog("unexpected tokens following #ifdef preprocessor directive - expected a newline");
+ while (token != '\n') {
+ token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
+ if (token <= 0) { // EOF or error
+ CPPErrorToInfoLog("unexpected end of input in #ifdef preprocessor directive - expected a newline");
+ return 0;
+ }
+ }
+ }
+ 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 <= 0){
+ CPPErrorToInfoLog("unexpected end of input in #error preprocessor directive - expected a newline");
+ return 0;
+ }else 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)
+{
+ char SrcStrName[2];
+ char** allTokens;
+ int tokenCount = 0;
+ int maxTokenCount = 10;
+ const char* SrcStr;
+ int i;
+
+ int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
+
+ if (token=='\n') {
+ DecLineNumber();
+ CPPErrorToInfoLog("#pragma");
+ IncLineNumber();
+ return token;
+ }
+
+ allTokens = (char**)malloc(sizeof(char*) * maxTokenCount);
+
+ while (token != '\n') {
+ if (tokenCount >= maxTokenCount) {
+ maxTokenCount *= 2;
+ allTokens = (char**)realloc((char**)allTokens, sizeof(char*) * maxTokenCount);
+ }
+ switch (token) {
+ case CPP_IDENTIFIER:
+ SrcStr = GetAtomString(atable, yylvalpp->sc_ident);
+ allTokens[tokenCount] = (char*)malloc(strlen(SrcStr) + 1);
+ strcpy(allTokens[tokenCount++], SrcStr);
+ break;
+ case CPP_INTCONSTANT:
+ SrcStr = yylvalpp->symbol_name;
+ allTokens[tokenCount] = (char*)malloc(strlen(SrcStr) + 1);
+ strcpy(allTokens[tokenCount++], SrcStr);
+ break;
+ case CPP_FLOATCONSTANT:
+ SrcStr = yylvalpp->symbol_name;
+ allTokens[tokenCount] = (char*)malloc(strlen(SrcStr) + 1);
+ strcpy(allTokens[tokenCount++], SrcStr);
+ break;
+ case -1:
+ // EOF
+ CPPShInfoLogMsg("#pragma directive must end with a newline");
+ goto freeMemoryAndReturnToken;
+ default:
+ SrcStrName[0] = token;
+ SrcStrName[1] = '\0';
+ allTokens[tokenCount] = (char*)malloc(2);
+ strcpy(allTokens[tokenCount++], SrcStrName);
+ }
+ token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
+ }
+
+ HandlePragma((const char**)allTokens, tokenCount);
+
+freeMemoryAndReturnToken:
+ for (i = 0; i < tokenCount; ++i) {
+ free (allTokens[i]);
+ }
+ free (allTokens);
+
+ return token;
+} // CPPpragma
+
+#define ESSL_VERSION_NUMBER 100
+#define ESSL_VERSION_STRING "100"
+
+static int CPPversion(yystypepp * yylvalpp)
+{
+
+ int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
+
+ if (cpp->pastFirstStatement == 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 != ESSL_VERSION_NUMBER)
+ CPPShInfoLogMsg("Version number not supported by ESSL");
+
+ 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[MAX_SYMBOL_NAME_LEN + 1];
+
+ if(token=='\n'){
+ DecLineNumber();
+ CPPShInfoLogMsg("extension name not specified");
+ IncLineNumber();
+ return token;
+ }
+
+ if (token != CPP_IDENTIFIER)
+ CPPErrorToInfoLog("#extension");
+
+ strncpy(extensionName, GetAtomString(atable, yylvalpp->sc_ident), MAX_SYMBOL_NAME_LEN);
+ extensionName[MAX_SYMBOL_NAME_LEN] = '\0';
+
+ 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;
+
+ 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;
+ return 0;
+ }
+ token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
+ if (token != '\n') {
+ CPPWarningToInfoLog("unexpected tokens following #else preprocessor directive - expected a newline");
+ while (token != '\n') {
+ token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
+ if (token <= 0) { // EOF or error
+ CPPErrorToInfoLog("unexpected end of input in #ifdef preprocessor directive - expected a newline");
+ return 0;
+ }
+ }
+ }
+ token = CPPelse(0, yylvalpp);
+ }else{
+ CPPErrorToInfoLog("#else after a #else");
+ cpp->ifdepth = 0;
+ cpp->elsetracker = 0;
+ cpp->pastFirstStatement = 1;
+ cpp->CompileError = 1;
+ return 0;
+ }
+ } else if (yylvalpp->sc_ident == elifAtom) {
+ if (!cpp->ifdepth){
+ CPPErrorToInfoLog("#elif mismatch");
+ cpp->CompileError=1;
+ return 0;
+ }
+ // this token is really a dont care, but we still need to eat the tokens
+ token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
+ while (token != '\n') {
+ token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
+ if (token <= 0) { // EOF or error
+ CPPErrorToInfoLog("unexpect tokens following #elif preprocessor directive - expected a newline");
+ cpp->CompileError = 1;
+ return 0;
+ }
+ }
+ token = CPPelse(0, yylvalpp);
+ } else if (yylvalpp->sc_ident == endifAtom) {
+ if (!cpp->ifdepth){
+ CPPErrorToInfoLog("#endif mismatch");
+ cpp->CompileError=1;
+ return 0;
+ }
+ else
+ --cpp->ifdepth;
+
+ if (cpp->elsetracker)
+ --cpp->elsetracker;
+
+ } 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);
+ } 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->pastFirstStatement = 1;
+
+ return token;
+} // readCPPline
+
+void FreeMacro(MacroSymbol *s) {
+ DeleteTokenStream(s->body);
+}
+
+void PredefineIntMacro(const char *name, int value) {
+ SourceLoc location = {0, 0};
+ Symbol *symbol = NULL;
+ MacroSymbol macro = {0, NULL, NULL, 0, 0};
+ yystypepp val = {0, 0.0, 0, {0}};
+ int atom = 0;
+
+ macro.body = NewTokenStream(name, macros->pool);
+ val.sc_int = value;
+ snprintf(val.symbol_name, MAX_SYMBOL_NAME_LEN+1, "%d", value);
+ RecordToken(macro.body, CPP_INTCONSTANT, &val);
+ atom = LookUpAddString(atable, name);
+ symbol = AddSymbol(&location, macros, atom, MACRO_S);
+ symbol->details.mac = macro;
+}
+
+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", 0);
+ 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();
+ snprintf(yylvalpp->symbol_name, MAX_SYMBOL_NAME_LEN+1, "%d", yylvalpp->sc_int);
+ UngetToken(CPP_INTCONSTANT, yylvalpp);
+ return 1;
+ }
+ if (atom == __FILE__Atom) {
+ yylvalpp->sc_int = GetStringNumber();
+ snprintf(yylvalpp->symbol_name, MAX_SYMBOL_NAME_LEN+1, "%d", yylvalpp->sc_int);
+ UngetToken(CPP_INTCONSTANT, yylvalpp);
+ return 1;
+ }
+ if (atom == __VERSION__Atom) {
+ strcpy(yylvalpp->symbol_name,ESSL_VERSION_STRING);
+ 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", 0);
+ 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)
+{
+ // sanity check to make sure elsetracker is in a valid range
+ if (cpp->elsetracker < 0 || cpp->elsetracker >= MAX_IF_NESTING) {
+ return 0;
+ }
+
+ if (cpp->elsedepth[cpp->elsetracker] == 0) {
+ cpp->elsedepth[cpp->elsetracker] = 1;
+ return 1;
+ }
+ return 0;
+}
+
+