s_svsra.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"
 
static void __attribute__((optimize("no-unroll-loops"))) _spu_wait_SpuSetVoiceSRAttr(void)
{
    int i;
    int v1;
 
    v1 = 1;
    for ( i = 0; i < 2; i += 1 )
    {
        v1 *= 13;
        __asm__ __volatile__("" : "+g"(v1) : :);
    }
}
 
void SpuSetVoiceSRAttr(int v_num, u16 sr, int sr_mode)
{
    s16 v3;
    int v4;
 
    v4 = 8 * v_num;
    switch ( sr_mode )
    {
        case SPU_VOICE_LINEARIncN:
            v3 = 0;
            break;
        case SPU_VOICE_EXPIncN:
            v3 = 512;
            break;
        case SPU_VOICE_EXPDec:
            v3 = 768;
            break;
        default:
            v3 = 256;
            break;
    }
    _spu_RXX[512 * _spu_core + 4 + v4] = (_spu_RXX[512 * _spu_core + 4 + v4] & 0x3F) | ((sr | (u16)v3) << 6);
    _spu_wait_SpuSetVoiceSRAttr();
}