shithub: rott

ref: d7f038fe0566c8239ec0b2ca1e56686476e82e09
dir: /src/audiolib/platform.h/

#ifndef _INCLUDE_PLATFORM_H_
#define _INCLUDE_PLATFORM_H_

/* this file originally from buildengine */
#ifdef BUILDENGINE

#if (defined PLATFORM_WIN32)
#include "win32_compat.h"
#elif (defined PLATFORM_UNIX)
#include "unix_compat.h"
#else
#error Define your platform!
#endif

#if (!defined __EXPORT__)
#define __EXPORT__
#endif

#if ((defined PLATFORM_SUPPORTS_SDL) && (!defined PLATFORM_TIMER_HZ))
#define PLATFORM_TIMER_HZ 100
#endif

#if (!defined PLATFORM_TIMER_HZ)
#error You need to define PLATFORM_TIMER_HZ for your platform.
#endif

#if (defined __WATCOMC__)
#define snprintf _snprintf
#endif

#endif

static unsigned short _swap16(unsigned short D)
{
#if PLATFORM_MACOSX
    register unsigned short returnValue;
    __asm__ volatile("lhbrx %0,0,%1"
        : "=r" (returnValue)
        : "r" (&D)
    );
    return returnValue;
#else
    return((D<<8)|(D>>8));
#endif
}

static unsigned int _swap32(unsigned int D)
{
#if PLATFORM_MACOSX
    register unsigned int returnValue;
    __asm__ volatile("lwbrx %0,0,%1"
        : "=r" (returnValue)
        : "r" (&D)
    );
    return returnValue;
#else
    return((D<<24)|((D<<8)&0x00FF0000)|((D>>8)&0x0000FF00)|(D>>24));
#endif
}

#if PLATFORM_MACOSX
#define PLATFORM_BIGENDIAN 1
#define BUILDSWAP_INTEL16(x) _swap16(x)
#define BUILDSWAP_INTEL32(x) _swap32(x)
#else
#define PLATFORM_LITTLEENDIAN 1
#define BUILDSWAP_INTEL16(x) (x)
#define BUILDSWAP_INTEL32(x) (x)
#endif

#endif  /* !defined _INCLUDE_PLATFORM_H_ */

/* end of platform.h ... */