forked from 0ad/0ad
Tweak OGRE preprocessor to fit in our code, and fix bug with #define inside #ifdef.
This was SVN commit r9122.
This commit is contained in:
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d1241cd6e9
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@ -1,3 +1,9 @@
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/*
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* This source file originally came from OGRE v1.7.2 - http://www.ogre3d.org/
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* with some tweaks as part of 0 A.D.
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* All changes are released under the original license, as follows:
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*/
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/*
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-----------------------------------------------------------------------------
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This source file is part of OGRE
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@ -26,22 +32,15 @@ THE SOFTWARE.
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-----------------------------------------------------------------------------
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*/
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#include "OgreGLSLPreprocessor.h"
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#include "OgreLogManager.h"
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#include "precompiled.h"
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#include <ctype.h>
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#include <stdio.h>
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#include <assert.h>
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#include "Preprocessor.h"
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namespace Ogre {
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#include "ps/CLogger.h"
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// Limit max number of macro arguments to this
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#define MAX_MACRO_ARGS 16
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#if OGRE_PLATFORM == OGRE_PLATFORM_WIN32 && !defined( __MINGW32__ )
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#define snprintf _snprintf
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#endif
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//---------------------------------------------------------------------------//
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/// Return closest power of two not smaller than given number
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@ -110,10 +109,12 @@ bool CPreprocessor::Token::GetValue (long &oValue) const
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long base = 10;
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if (String [i] == '0')
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{
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if (Length > i + 1 && String [i + 1] == 'x')
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base = 16, i += 2;
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else
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base = 8;
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}
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for (; i < Length; i++)
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{
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@ -229,13 +230,11 @@ static void DefaultError (void *iData, int iLine, const char *iError,
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const char *iToken, size_t iTokenLen)
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{
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(void)iData;
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char line [1000];
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if (iToken)
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snprintf (line, sizeof (line), "line %d: %s: `%.*s'\n",
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LOGERROR(L"Preprocessor error: line %d: %hs: '%.*hs'\n",
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iLine, iError, int (iTokenLen), iToken);
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else
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snprintf (line, sizeof (line), "line %d: %s\n", iLine, iError);
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LogManager::getSingleton ().logMessage (line);
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LOGERROR(L"Preprocessor error: line %d: %hs\n", iLine, iError);
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}
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//---------------------------------------------------------------------------//
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@ -427,7 +426,7 @@ CPreprocessor::Token CPreprocessor::ExpandMacro (const Token &iToken)
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if (t.String)
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{
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// Returned token should never be allocated on heap
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assert (t.Allocated == 0);
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debug_assert (t.Allocated == 0);
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Source = t.String;
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Line -= t.CountNL ();
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}
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@ -490,6 +489,7 @@ CPreprocessor::Token CPreprocessor::GetExpression (
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// Handle unary operators here
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if (oResult.Type == Token::TK_PUNCTUATION && oResult.Length == 1)
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{
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if (strchr ("+-!~", oResult.String [0]))
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{
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char uop = oResult.String [0];
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@ -520,11 +520,12 @@ CPreprocessor::Token CPreprocessor::GetExpression (
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return Token (Token::TK_ERROR);
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}
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assert (op.Type == Token::TK_PUNCTUATION &&
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op.Length == 1 &&
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op.String [0] == ')');
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debug_assert (op.Type == Token::TK_PUNCTUATION &&
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op.Length == 1 &&
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op.String [0] == ')');
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op = GetToken (true);
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}
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}
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while (op.Type == Token::TK_WHITESPACE ||
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op.Type == Token::TK_NEWLINE ||
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@ -743,6 +744,7 @@ CPreprocessor::Token CPreprocessor::GetArgument (Token &oArg, bool iExpand)
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oArg.Type == Token::TK_LINECONT);
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if (!iExpand)
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{
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if (oArg.Type == Token::TK_EOS)
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return oArg;
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else if (oArg.Type == Token::TK_PUNCTUATION &&
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@ -758,6 +760,7 @@ CPreprocessor::Token CPreprocessor::GetArgument (Token &oArg, bool iExpand)
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Error (Line, "Unexpected token", &oArg);
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return Token (Token::TK_ERROR);
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}
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}
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uint len = oArg.Length;
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while (true)
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@ -877,6 +880,10 @@ bool CPreprocessor::HandleDefine (Token &iBody, int iLine)
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return false;
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}
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bool output_enabled = ((EnableOutput & (EnableOutput + 1)) == 0);
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if (!output_enabled)
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return true;
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Macro *m = new Macro (t);
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m->Body = iBody;
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t = cpp.GetArguments (m->NumArgs, m->Args, false);
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@ -897,7 +904,7 @@ bool CPreprocessor::HandleDefine (Token &iBody, int iLine)
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default:
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t.Type = Token::TK_TEXT;
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assert (t.String + t.Length == cpp.Source);
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debug_assert (t.String + t.Length == cpp.Source);
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t.Length = cpp.SourceEnd - t.String;
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break;
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}
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@ -1160,6 +1167,16 @@ void CPreprocessor::Define (const char *iMacroName, size_t iMacroNameLen,
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MacroList = m;
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}
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void CPreprocessor::Define (const char *iMacroName, const char *iMacroValue)
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{
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Define (iMacroName, strlen(iMacroName), iMacroValue, strlen(iMacroValue));
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}
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void CPreprocessor::Define (const char *iMacroName, long iMacroValue)
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{
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Define (iMacroName, strlen(iMacroName), iMacroValue);
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}
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bool CPreprocessor::Undef (const char *iMacroName, size_t iMacroNameLen)
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{
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Macro **cur = &MacroList;
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@ -1287,5 +1304,3 @@ char *CPreprocessor::Parse (const char *iSource, size_t iLength, size_t &oLength
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retval.Allocated = 0;
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return retval.Buffer;
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}
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} // namespace Ogre
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@ -1,3 +1,9 @@
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/*
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* This source file originally came from OGRE v1.7.2 - http://www.ogre3d.org/
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* with some tweaks as part of 0 A.D.
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* All changes are released under the original license, as follows:
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*/
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/**
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-----------------------------------------------------------------------------
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This source file is part of OGRE
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@ -26,13 +32,8 @@ THE SOFTWARE.
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-----------------------------------------------------------------------------
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*/
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#ifndef __OGRE_CPREPROCESSOR_H__
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#define __OGRE_CPREPROCESSOR_H__
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#include <string.h>
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#include <stdlib.h>
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namespace Ogre {
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#ifndef INCLUDED_CPREPROCESSOR
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#define INCLUDED_CPREPROCESSOR
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/**
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* This is a simplistic C/C++-like preprocessor.
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@ -454,6 +455,24 @@ public:
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*/
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void Define (const char *iMacroName, size_t iMacroNameLen, long iMacroValue);
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/**
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* Define a macro without parameters.
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* @param iMacroName
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* The name of the defined macro
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* @param iMacroValue
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* The value of the defined macro
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*/
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void Define (const char *iMacroName, const char *iMacroValue);
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/**
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* Define a numerical macro.
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* @param iMacroName
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* The name of the defined macro
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* @param iMacroValue
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* The value of the defined macro
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*/
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void Define (const char *iMacroName, long iMacroValue);
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/**
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* Undefine a macro.
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* @param iMacroName
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@ -519,6 +538,4 @@ public:
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void *ErrorData;
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};
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} // namespace Ogre
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#endif // __OGRE_CPREPROCESSOR_H__
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#endif // INCLUDED_CPREPROCESSOR
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