snd_adpcm.h

#ifndef NW4R_SND_ADPCM_H
#define NW4R_SND_ADPCM_H
 
/*******************************************************************************
 * headers
 */
 
#include <types.h>
 
#include <revolution/AX/AXVPB.h> // AXPBADPCM
 
/*******************************************************************************
 * types
 */
 
namespace nw4r { namespace snd { // namespace detail
// {
    // Why are these just the AX types
 
    // [R89JEL]:/bin/RVL/Debug/mainD.elf:.debug::0x291b3
    struct AdpcmParam // AXPBADPCM
    {
        u16 coef[8 * 2];    // size 0x20, offset 0x00
        u16 gain;           // size 0x02, offset 0x20
        u16 pred_scale;     // size 0x02, offset 0x22
        u16 yn1;            // size 0x02, offset 0x24
        u16 yn2;            // size 0x02, offset 0x26
    }; // size 0x28
namespace detail
{
    // [R89JEL]:/bin/RVL/Debug/mainD.elf:.debug::0x29290
    struct AdpcmLoopParam // AXPBADPCMLOOP
    {
        u16 loop_pred_scale;    // size 0x02, offset 0x00
        u16 loop_yn1;           // size 0x02, offset 0x02
        u16 loop_yn2;           // size 0x02, offset 0x04
    }; // size 0x06
}
}} // namespace nw4r::snd // ::detail
 
/*******************************************************************************
 * classes and functions
 */
 
namespace nw4r { namespace snd { namespace detail
{
    s16 DecodeDspAdpcm(AXPBADPCM *adpcm, byte_t bits);
}}} // namespace nw4r::snd::detail
 
#endif // NW4R_SND_ADPCM_H