hinit.c

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/* libfb initialization for xbox */

#include "../fb.h"

#ifdef ENABLE_MT
static CRITICAL_SECTION __fb_global_mutex;
static CRITICAL_SECTION __fb_string_mutex;
FBCALL void fb_Lock( void )      { EnterCriticalSection( &__fb_global_mutex ); }
FBCALL void fb_Unlock( void )    { LeaveCriticalSection( &__fb_global_mutex ); }
FBCALL void fb_StrLock( void )   { EnterCriticalSection( &__fb_string_mutex ); }
FBCALL void fb_StrUnlock( void ) { LeaveCriticalSection( &__fb_string_mutex ); }
#endif

void fb_hInit( void )
{
        unsigned int control_word;

        /* Get FPU control word */
        __asm__ __volatile__( "fstcw %0" : "=m" (control_word) : );
        /* Set 64-bit and round to nearest */
        control_word = (control_word & 0xF0FF) | 0x300;
        /* Write back FPU control word */
        __asm__ __volatile__( "fldcw %0" : : "m" (control_word) );


#ifdef ENABLE_MT
        /* !!!FIXME!!! replace with xbox/openxdk equivalents */
        InitializeCriticalSection(&__fb_global_mutex);
        InitializeCriticalSection(&__fb_string_mutex);
#endif
}

void fb_hEnd( int unused )
{
#ifdef ENABLE_MT
        DeleteCriticalSection(&__fb_global_mutex);
        DeleteCriticalSection(&__fb_string_mutex);
#endif
}