s_gks.c

/*
# _____     ___ ____     ___ ____
#  ____|   |    ____|   |        | |____|
# |     ___|   |____ ___|    ____| |    \    PS2DEV Open Source Project.
#-----------------------------------------------------------------------
# Copyright ps2dev - http://www.ps2dev.org
# Licenced under Academic Free License version 2.0
# Review ps2sdk README & LICENSE files for further details.
*/
 
#include "libspu2_internal.h"
 
int SpuGetKeyStatus(unsigned int voice_bit)
{
    int v1;
    int v2;
 
    v1 = -1;
    for ( v2 = 0; v2 < 24; v2 += 1 )
    {
        if ( (voice_bit & (1 << v2)) != 0 )
        {
            v1 = v2;
            break;
        }
    }
    if ( v1 == -1 )
    {
        return -1;
    }
    if ( (_spu_keystat[_spu_core] & (1 << v1)) != 0 )
    {
        if ( _spu_RXX[512 * _spu_core + 5 + 8 * v1] != 0 )
        {
            return SPU_ON;
        }
        else
        {
            return SPU_ON_ENV_OFF;
        }
    }
    else
    {
        if ( _spu_RXX[512 * _spu_core + 5 + 8 * v1] != 0 )
        {
            return SPU_OFF_ENV_ON;
        }
        else
        {
            return SPU_OFF;
        }
    }
}