bd0747d6f0
This includes - doing prescan of shader to know version/profile before parsing it - putting precision qualifiers on built-in ES symbols - getting most built-in state correct for core/compatibility/missing profile - adding gl_VertexID and gl_InstanceID, among other ES 300 built-in symbols - adding the ES 300 gl_Max/Min constants - accepting shaders that contain nothing but whitespace without generating an error git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@20627 e7fa87d3-cd2b-0410-9028-fcbf551c1848
1069 lines
35 KiB
C
1069 lines
35 KiB
C
//
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//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
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//All rights reserved.
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//
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//Redistribution and use in source and binary forms, with or without
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//modification, are permitted provided that the following conditions
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//are met:
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//
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// Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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//
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// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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//POSSIBILITY OF SUCH DAMAGE.
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//
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/****************************************************************************\
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Copyright (c) 2002, NVIDIA Corporation.
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NVIDIA Corporation("NVIDIA") supplies this software to you in
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consideration of your agreement to the following terms, and your use,
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installation, modification or redistribution of this NVIDIA software
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constitutes acceptance of these terms. If you do not agree with these
|
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terms, please do not use, install, modify or redistribute this NVIDIA
|
|
software.
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In consideration of your agreement to abide by the following terms, and
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subject to these terms, NVIDIA grants you a personal, non-exclusive
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|
license, under NVIDIA's copyrights in this original NVIDIA software (the
|
|
"NVIDIA Software"), to use, reproduce, modify and redistribute the
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|
NVIDIA Software, with or without modifications, in source and/or binary
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|
forms; provided that if you redistribute the NVIDIA Software, you must
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|
retain the copyright notice of NVIDIA, this notice and the following
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|
text and disclaimers in all such redistributions of the NVIDIA Software.
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|
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
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|
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.
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|
|
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THE NVIDIA SOFTWARE IS BEING PROVIDED ON AN "AS IS" BASIS, WITHOUT
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|
WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED,
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INCLUDING WITHOUT LIMITATION, WARRANTIES OR CONDITIONS OF TITLE,
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|
NON-INFRINGEMENT, MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
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ITS USE AND OPERATION EITHER ALONE OR IN COMBINATION WITH OTHER
|
|
PRODUCTS.
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|
|
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IN NO EVENT SHALL NVIDIA BE LIABLE FOR ANY SPECIAL, INDIRECT,
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|
INCIDENTAL, EXEMPLARY, CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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|
TO, LOST PROFITS; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
|
USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) OR ARISING IN ANY WAY
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|
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
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|
NVIDIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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|
\****************************************************************************/
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//
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// cpp.c
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//
|
|
|
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// TODO: CPP handle escaped newlines in a // style comment, correctly done in ConsumeWhitespaceComment()
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|
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#define _CRT_SECURE_NO_WARNINGS
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#include <stdarg.h>
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|
#include <stdio.h>
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|
#include <stdlib.h>
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|
#include <string.h>
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|
#include <ctype.h>
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|
|
#include "slglobals.h"
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|
|
static int CPPif(yystypepp * yylvalpp);
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|
|
|
/* Don't use memory.c's replacements, as we clean up properly here */
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#undef malloc
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|
#undef free
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|
|
static int bindAtom = 0;
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|
static int constAtom = 0;
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|
static int defaultAtom = 0;
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|
static int defineAtom = 0;
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|
static int definedAtom = 0;
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|
static int elseAtom = 0;
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|
static int elifAtom = 0;
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|
static int endifAtom = 0;
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|
static int ifAtom = 0;
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|
static int ifdefAtom = 0;
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|
static int ifndefAtom = 0;
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|
static int includeAtom = 0;
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|
static int lineAtom = 0;
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|
static int pragmaAtom = 0;
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|
static int texunitAtom = 0;
|
|
static int undefAtom = 0;
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|
static int errorAtom = 0;
|
|
static int __LINE__Atom = 0;
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|
static int __FILE__Atom = 0;
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|
static int __VERSION__Atom = 0;
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|
static int versionAtom = 0;
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|
static int coreAtom = 0;
|
|
static int compatibilityAtom = 0;
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|
static int esAtom = 0;
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|
static int extensionAtom = 0;
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|
|
|
static Scope *macros = 0;
|
|
#define MAX_MACRO_ARGS 64
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|
#define MAX_IF_NESTING 64
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|
|
|
static SourceLoc ifloc; /* outermost #if */
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|
|
|
int InitCPP(void)
|
|
{
|
|
char buffer[64], *t;
|
|
const char *f;
|
|
// Add various atoms needed by the CPP line scanner:
|
|
bindAtom = LookUpAddString(atable, "bind");
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|
constAtom = LookUpAddString(atable, "const");
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|
defaultAtom = LookUpAddString(atable, "default");
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|
defineAtom = LookUpAddString(atable, "define");
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|
definedAtom = LookUpAddString(atable, "defined");
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|
elifAtom = LookUpAddString(atable, "elif");
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|
elseAtom = LookUpAddString(atable, "else");
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|
endifAtom = LookUpAddString(atable, "endif");
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ifAtom = LookUpAddString(atable, "if");
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ifdefAtom = LookUpAddString(atable, "ifdef");
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ifndefAtom = LookUpAddString(atable, "ifndef");
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includeAtom = LookUpAddString(atable, "include");
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lineAtom = LookUpAddString(atable, "line");
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pragmaAtom = LookUpAddString(atable, "pragma");
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texunitAtom = LookUpAddString(atable, "texunit");
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undefAtom = LookUpAddString(atable, "undef");
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|
errorAtom = LookUpAddString(atable, "error");
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__LINE__Atom = LookUpAddString(atable, "__LINE__");
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|
__FILE__Atom = LookUpAddString(atable, "__FILE__");
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|
__VERSION__Atom = LookUpAddString(atable, "__VERSION__");
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|
versionAtom = LookUpAddString(atable, "version");
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|
coreAtom = LookUpAddString(atable, "core");
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|
compatibilityAtom = LookUpAddString(atable, "compatibility");
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|
esAtom = LookUpAddString(atable, "es");
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|
extensionAtom = LookUpAddString(atable, "extension");
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|
macros = NewScopeInPool(mem_CreatePool(0, 0));
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strcpy(buffer, "PROFILE_");
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t = buffer + strlen(buffer);
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|
f = cpp->options.profileString;
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|
while ((isalnum(*f) || *f == '_') && t < buffer + sizeof(buffer) - 1)
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*t++ = toupper(*f++);
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*t = 0;
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return 1;
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|
} // InitCPP
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|
|
int FreeCPP(void)
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|
{
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|
if (macros)
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|
{
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|
mem_FreePool(macros->pool);
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|
macros = 0;
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|
}
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|
|
|
return 1;
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|
}
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|
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int FinalCPP(void)
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|
{
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|
if (cpp->ifdepth)
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|
CPPErrorToInfoLog("#if mismatch");
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|
return 1;
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|
}
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|
|
|
static int CPPdefine(yystypepp * yylvalpp)
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|
{
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|
int token, name, args[MAX_MACRO_ARGS], argc;
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|
const char *message;
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|
MacroSymbol mac;
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|
Symbol *symb;
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SourceLoc dummyLoc;
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memset(&mac, 0, sizeof(mac));
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token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
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if (token != CPP_IDENTIFIER) {
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CPPErrorToInfoLog("#define");
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|
return token;
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|
}
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name = yylvalpp->sc_ident;
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|
token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
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|
if (token == '(' && !yylvalpp->sc_int) {
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|
// gather arguments
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|
argc = 0;
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do {
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token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
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if (argc == 0 && token == ')') break;
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if (token != CPP_IDENTIFIER) {
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CPPErrorToInfoLog("#define");
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return token;
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}
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if (argc < MAX_MACRO_ARGS)
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args[argc++] = yylvalpp->sc_ident;
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token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
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} while (token == ',');
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if (token != ')') {
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CPPErrorToInfoLog("#define");
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return token;
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|
}
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mac.argc = argc;
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mac.args = (int*)mem_Alloc(macros->pool, argc * sizeof(int));
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memcpy(mac.args, args, argc * sizeof(int));
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token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
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}
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mac.body = NewTokenStream(GetAtomString(atable, name), macros->pool);
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while (token != '\n') {
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|
while (token == '\\') {
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token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
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|
if (token == '\n')
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token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
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else
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RecordToken(mac.body, '\\', yylvalpp);
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|
}
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RecordToken(mac.body, token, yylvalpp);
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token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
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};
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|
symb = LookUpSymbol(macros, name);
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|
if (symb) {
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if (!symb->details.mac.undef) {
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// already defined -- need to make sure they are identical
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if (symb->details.mac.argc != mac.argc) goto error;
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for (argc=0; argc < mac.argc; argc++)
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if (symb->details.mac.args[argc] != mac.args[argc])
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goto error;
|
|
RewindTokenStream(symb->details.mac.body);
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|
RewindTokenStream(mac.body);
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|
do {
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int old_lval, old_token;
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|
old_token = ReadToken(symb->details.mac.body, yylvalpp);
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|
old_lval = yylvalpp->sc_int;
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|
token = ReadToken(mac.body, yylvalpp);
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|
if (token != old_token || yylvalpp->sc_int != old_lval) {
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|
error:
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|
StoreStr("Macro Redefined");
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|
StoreStr(GetStringOfAtom(atable,name));
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|
message=GetStrfromTStr();
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|
DecLineNumber();
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|
CPPShInfoLogMsg(message);
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|
IncLineNumber();
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|
ResetTString();
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|
break; }
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|
} while (token > 0);
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|
}
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|
//FreeMacro(&symb->details.mac);
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|
} else {
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|
dummyLoc.file = 0;
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|
dummyLoc.line = 0;
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|
symb = AddSymbol(&dummyLoc, macros, name, MACRO_S);
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|
}
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|
symb->details.mac = mac;
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|
return '\n';
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|
} // CPPdefine
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|
|
|
static int CPPundef(yystypepp * yylvalpp)
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|
{
|
|
int token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
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|
Symbol *symb;
|
|
if(token == '\n'){
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|
CPPErrorToInfoLog("#undef");
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|
return token;
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|
}
|
|
if (token != CPP_IDENTIFIER)
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|
goto error;
|
|
symb = LookUpSymbol(macros, yylvalpp->sc_ident);
|
|
if (symb) {
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|
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 a #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;
|
|
int 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);
|
|
|
|
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) {
|
|
cpp->elsedepth[cpp->elsetracker] = 0;
|
|
--cpp->elsetracker;
|
|
if (depth == 0) {
|
|
// found the #endif we are looking for
|
|
if (cpp->ifdepth)
|
|
--cpp->ifdepth;
|
|
break;
|
|
}
|
|
--depth;
|
|
--cpp->ifdepth;
|
|
} else if (matchelse && depth == 0) {
|
|
if (atom == elseAtom ) {
|
|
// found the #else we are looking for
|
|
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);
|
|
}
|
|
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->elsedepth[cpp->elsetracker] = 0;
|
|
--cpp->elsetracker;
|
|
}
|
|
|
|
return CPPif(yylvalpp);
|
|
}
|
|
} else if((atom == elseAtom) && (!ChkCorrectElseNesting())) {
|
|
CPPErrorToInfoLog("#else after a #else");
|
|
cpp->CompileError = 1;
|
|
}
|
|
}; // end while
|
|
|
|
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 Tbinops {
|
|
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 tunops {
|
|
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("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;
|
|
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') {
|
|
CPPWarningToInfoLog("unexpected tokens following the preprocessor directive - expected a newline");
|
|
while (token != '\n')
|
|
token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
|
|
}
|
|
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);
|
|
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 (((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)
|
|
{
|
|
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");
|
|
return token;
|
|
default:
|
|
SrcStrName[0] = token;
|
|
SrcStrName[1] = '\0';
|
|
allTokens[tokenCount] = (char*)malloc(2);
|
|
strcpy(allTokens[tokenCount++], SrcStrName);
|
|
}
|
|
token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
|
|
}
|
|
|
|
cpp->currentInput->ungetch(cpp->currentInput, token, yylvalpp);
|
|
HandlePragma((const char**)allTokens, tokenCount);
|
|
token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
|
|
|
|
for (i = 0; i < tokenCount; ++i) {
|
|
free (allTokens[i]);
|
|
}
|
|
free (allTokens);
|
|
|
|
return token;
|
|
} // CPPpragma
|
|
|
|
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);
|
|
|
|
SetVersion(yylvalpp->sc_int);
|
|
|
|
token = cpp->currentInput->scan(cpp->currentInput, yylvalpp);
|
|
|
|
if (token == '\n') {
|
|
SetProfile(ENoProfile);
|
|
return token;
|
|
}
|
|
else {
|
|
if (yylvalpp->sc_ident == coreAtom)
|
|
SetProfile(ECoreProfile);
|
|
else if (yylvalpp->sc_ident == compatibilityAtom)
|
|
SetProfile(ECompatibilityProfile);
|
|
else if (yylvalpp->sc_ident == esAtom)
|
|
SetProfile(EEsProfile);
|
|
else
|
|
CPPErrorToInfoLog("#version profile name");
|
|
|
|
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 = 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);
|
|
}
|
|
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;
|
|
}
|
|
// 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);
|
|
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 = (InputSrc*)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(InputSrc *inInput, yystypepp * yylvalpp) {
|
|
MacroInputSrc* in = (MacroInputSrc*)inInput;
|
|
|
|
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 = (MacroInputSrc*)malloc(sizeof(*in));
|
|
memset(in, 0, sizeof(*in));
|
|
in->base.scan = 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 = (TokenStream**)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)
|
|
{
|
|
if (cpp->elsedepth[cpp->elsetracker] == 0) {
|
|
cpp->elsedepth[cpp->elsetracker] = 1;
|
|
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|