s_srmt.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 SpuSetReverbModeType(int mode)
{
    unsigned int v1;
    int v2;
    vu16 *v4;
    int v5;
    vu16 *v6;
    libspu2_reverb_param_entry_t v7;
 
    v1 = mode;
    v2 = 0;
    if ( (mode & SPU_REV_MODE_CLEAR_WA) != 0 )
    {
        v1 = mode & ~SPU_REV_MODE_CLEAR_WA;
        v2 = 1;
    }
    if ( v1 >= SPU_REV_MODE_MAX )
    {
        return -1;
    }
    _spu_rev_attr.mode = v1;
    _spu_rev_offsetaddr = SpuGetReverbEndAddr() - (8 * _spu_rev_workareasize[v1] - 2);
    memcpy(&v7, &_spu_rev_param[v1], 0x44u);
    v7.flags = 0;
    switch ( v1 )
    {
        case SPU_REV_MODE_ECHO:
            _spu_rev_attr.feedback = 127;
            _spu_rev_attr.delay = 127;
            break;
        case SPU_REV_MODE_DELAY:
            _spu_rev_attr.feedback = 0;
            _spu_rev_attr.delay = 127;
            break;
        default:
            _spu_rev_attr.feedback = 0;
            _spu_rev_attr.delay = 0;
            break;
    }
    v4 = &_spu_RXX[512 * _spu_core];
    v5 = (v4[205] >> 7) & 1;
    if ( v5 )
        v4[205] &= ~0x80u;
    v6 = &_spu_RXX[20 * _spu_core];
    v6[946] = 0;
    v6[947] = 0;
    _spu_rev_attr.depth.left = 0;
    _spu_rev_attr.depth.right = 0;
    _spu_setReverbAttr(&v7);
    if ( v2 )
        SpuClearReverbWorkArea(v1);
    _spu_FsetRXX(368, _spu_rev_offsetaddr, 1);
    if ( v5 )
    {
        _spu_RXX[512 * _spu_core + 205] |= 0x80u;
    }
    return 0;
}