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Diffstat (limited to 'backends/epoc/src/portdefs.h')
| -rw-r--r-- | backends/epoc/src/portdefs.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/backends/epoc/src/portdefs.h b/backends/epoc/src/portdefs.h new file mode 100644 index 0000000000..faf55f98d9 --- /dev/null +++ b/backends/epoc/src/portdefs.h @@ -0,0 +1,143 @@ +/* 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 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. + * + * $Header$ + */ + +#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> + +// the place in Symbian FS where scummvm.ini & std***.txt are saved +#define SYMBIAN32_DOC_DIR "C:\\documents\\ScummVM\\" // includes final \\! +#define DISABLE_SCALERS // we only need 1x + +#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! +#ifdef __GCC32__ + + #define snprintf(buf,len,args...) sprintf(buf,args) + #define vsnprintf snprintf + + // 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 + */ + +#else // 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); + } + + #define snprintf scumm_snprintf + #define vsnprintf scumm_snprintf + +#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 + +// make sure SymbianFatalError() @ SymbianOS.cpp is known in error() @ engine.cpp +extern void SymbianFatalError(const char *msg) ; + + |