vm_no2.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 "libsnd2_internal.h"
 
void vmNoiseOn2(u8 vc, u16 voll, u16 volr, u16 arg3, u16 arg4)
{
    int vc_mask_tmp1;
    int vc_mask_tmp2;
    u16 okon1_tmp;
    u16 okon2_tmp;
    libsnd2_spu_voice_t *voice_struct;
 
    (void)arg3;
    (void)arg4;
 
    voice_struct = &_svm_voice[vc];
    _svm_sreg_buf[vc].m_vol_left = voll;
    _svm_sreg_buf[vc].m_vol_right = volr;
    _svm_sreg_dirty[vc] |= 3;
    if ( vc >= 0x10u )
    {
        vc_mask_tmp1 = 0;
        vc_mask_tmp2 = 1 << (vc - 16);
    }
    else
    {
        vc_mask_tmp1 = 1 << vc;
        vc_mask_tmp2 = 0;
    }
    voice_struct->m_pitch = 10;
    voice_struct->m_unk1d = 2;
    okon1_tmp = _svm_okon1;
    okon2_tmp = _svm_okon2;
    voice_struct->m_unk02 = 0;
    _svm_okon1 = okon1_tmp | vc_mask_tmp1;
    _svm_okon2 = okon2_tmp | vc_mask_tmp2;
    _svm_okof1 &= ~(okon1_tmp | vc_mask_tmp1);
    _svm_okof2 &= ~(okon2_tmp | vc_mask_tmp2);
    SpuSetNoiseVoice(SPU_ON, ((u8)vc_mask_tmp2 << 16) | (u16)vc_mask_tmp1);
}