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/* ScummVM - Scumm Interpreter
* Copyright (C) 2003-2005 Andreas 'Sprawl' Karlsson - Original EPOC port, ESDL
* Copyright (C) 2003-2005 Lars 'AnotherGuest' Persson - Original EPOC port, Audio System
* Copyright (C) 2005 Jurgen 'SumthinWicked' Braam - EPOC/CVS maintainer
* Copyright (C) 2005-2006 The ScummVM project
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*/
#ifndef SYMBIAN_PORTDEFS_H
#define SYMBIAN_PORTDEFS_H
#include <assert.h>
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <e32def.h>
#include <e32std.h>
#include <math.h>
#define DISABLE_SCALERS // we only need 1x
#define DISABLE_HQ_SCALERS
#if defined(USE_TREMOR) && !defined(USE_VORBIS)
#define USE_VORBIS // make sure this one is defined together with USE_TREMOR!
#endif
// hack in some tricks to work around not having these fcns for Symbian
// and we _really_ don't wanna link with any other windows LIBC library!
#if defined(__GCC32__)
#define snprintf(buf,len,args...) sprintf(buf,args)
#define vsnprintf(buf,len,format,valist) vsprintf(buf,format,valist)
// taken from public domain http://www.opensource.apple.com/darwinsource/WWDC2004/gcc_legacy-939/gcc/floatlib.c
#define SIGNBIT 0x80000000
#define HIDDEN (1 << 23)
#define EXCESSD 1022
#define EXPD(fp) (((fp.l.upper) >> 20) & 0x7FF)
#define SIGND(fp) ((fp.l.upper) & SIGNBIT)
#define HIDDEND_LL ((long long)1 << 52)
#define MANTD_LL(fp) ((fp.ll & (HIDDEND_LL-1)) | HIDDEND_LL)
union double_long {
double d;
struct {
long upper;
unsigned long lower;
} l;
long long ll;
};
/* convert double float to double int (dfdi) */
long long inline
scumm_fixdfdi (double a1) { // __fixdfdi (double a1)
register union double_long dl1;
register int exp;
register long long l;
dl1.d = a1;
if (!dl1.l.upper && !dl1.l.lower)
return (0);
exp = EXPD (dl1) - EXCESSD - 64;
l = MANTD_LL(dl1);
if (exp > 0) {
l = (long long)1<<63;
if (!SIGND(dl1))
l--;
return l;
}
/* shift down until exp = 0 or l = 0 */
if (exp < 0 && exp > -64 && l)
l >>= -exp;
else
return (0);
return (SIGND (dl1) ? -l : l);
}
/* okay, okay: I admit it: I absolutely have _NO_ idea why __fixdfdi does not get linked in by gcc from libgcc.a
because I know it's in there: I checked with `ar x _fixdfdi.o libgcc.a` and the symbol is in there, so I'm lost
and had to fix it this way. I tried all gcc and ld options I could find: no hope :( If someone can enlighten me:
feel free to let me know at sumthinwicked@users.sf.net! Much obliged.
PS1. I think for __fixunsdfdi they have made a circumvention by having to add STATICLIBRARY EGCC.LIB
PS2. http://gcc.gnu.org/ml/gcc-bugs/2004-01/msg01596.html might have found out the same problem there
*/
#elif defined (__WINS__) // WINS
// let's just blatantly ignore this for now and just get it to work :P but does n't work from the debug function
int inline scumm_snprintf (char *str, unsigned long /*n*/, char const *fmt, ...) {
va_list args;
va_start(args, fmt);
vsprintf(str, fmt, args);
va_end(args);
return strlen(str);
}
int inline scumm_vsnprintf (char *str, unsigned long /*n*/, char const *fmt, va_list valist) {
vsprintf(str, fmt, valist);
return strlen(str);
}
#define snprintf scumm_snprintf
#define vsnprintf scumm_vsnprintf
void* symbian_malloc (size_t _size);
#define malloc symbian_malloc
#else // GCCE and the rest
#define snprintf(buf,len,args...) sprintf(buf,args)
#define vsnprintf(buf,len,format,valist) vsprintf(buf,format,valist)
#endif
// somehow nobody has this function...
#define hypot(a, b) sqrt((a)*(a) + (b)*(b))
// Symbian bsearch implementation is flawed
void inline *scumm_bsearch(const void *key, const void *base, size_t nmemb, size_t size, int (*compar)(const void *, const void *)) {
size_t i;
for (i=0; i < nmemb; i++)
if (compar(key, (void *)((size_t)base + size * i)) == 0)
return (void *)((size_t)base + size * i);
return NULL;
}
#define bsearch scumm_bsearch
// we cannot include SymbianOS.h everywhere, but this works too (functions code is in SymbianOS.cpp)
namespace Symbian {
extern void FatalError(const char *msg);
extern char* GetExecutablePath();
}
#endif
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