s_crwa.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 SpuClearReverbWorkArea(int mode)
{
    int ck_1;
    unsigned int m;
    unsigned int n;
    u32 t;
    int ck_2;
    void (*bk)(void);
 
    bk = 0;
    ck_1 = 0;
    if ( (unsigned int)mode >= SPU_REV_MODE_MAX )
        return -1;
    if ( mode )
    {
        m = 8 * _spu_rev_workareasize[mode];
        n = (SpuGetReverbEndAddr() - m) >> 1;
    }
    else
    {
        m = 32;
        n = 2097120;
    }
    printf("### addr = %u  size = %u\n", n, m);
    t = _spu_transMode;
    if ( _spu_transMode == 1 )
    {
        _spu_transMode = 0;
        ck_1 = 1;
    }
    ck_2 = 1;
    if ( _spu_transferCallback )
    {
        bk = _spu_transferCallback;
        _spu_transferCallback = 0;
    }
    while ( ck_2 )
    {
        int m_tmp;
 
        m_tmp = 1024;
        if ( m < 0x401 )
        {
            m_tmp = m;
            ck_2 = 0;
        }
        gDMADeliverEvent = 0;
        _spu_t(2, n);
        _spu_t(1);
        _spu_t(3, _spu_zerobuf, m_tmp);
        while ( !gDMADeliverEvent )
            ;
        gDMADeliverEvent = 0;
        m -= 1024;
        n += 512;
    }
    if ( ck_1 )
        _spu_transMode = t;
    if ( bk )
    {
        _spu_transferCallback = bk;
    }
    return 0;
}