metaforce/Runtime/Audio/CStaticAudioPlayer.hpp

88 lines
2.5 KiB
C++

#pragma once
#include "CAudioSys.hpp"
#include "RetroTypes.hpp"
#include "g721.h"
#include "boo/audiodev/IAudioVoice.hpp"
#include "boo/audiodev/IAudioVoiceEngine.hpp"
namespace urde
{
class IDvdRequest;
class CStaticAudioPlayer
{
std::string x0_path;
u32 x10_rsfRem = -1;
u32 x14_rsfLength;
u32 x18_curSamp = 0;
u32 x1c_loopStartSamp;
u32 x20_loopEndSamp;
//u32 x24_ = 0;
//std::unique_ptr<u8[]> x28_dmaLeft;
//std::unique_ptr<u8[]> x30_dmaRight;
std::vector<std::shared_ptr<IDvdRequest>> x38_dvdRequests;
std::vector<std::unique_ptr<u8[]>> x48_buffers;
g72x_state x58_leftState;
g72x_state x8c_rightState;
std::experimental::optional<g72x_state> m_leftStateLoop;
std::experimental::optional<g72x_state> m_rightStateLoop;
u32 xc0_volume = 32768; // Out of 32768
static int16_t SampClamp(int32_t val)
{
if (val < -32768) val = -32768;
else if (val > 32767) val = 32767;
return val;
}
struct AudioVoiceCallback : boo::IAudioVoiceCallback
{
CStaticAudioPlayer& m_parent;
void preSupplyAudio(boo::IAudioVoice&, double) {}
size_t supplyAudio(boo::IAudioVoice& voice, size_t frames, int16_t* data)
{
if (m_parent.IsReady())
{
m_parent.x38_dvdRequests.clear();
m_parent.Decode(data, frames);
}
else
memset(data, 0, 4 * frames);
return frames;
}
AudioVoiceCallback(CStaticAudioPlayer& p) : m_parent(p) {}
} m_voiceCallback;
boo::ObjToken<boo::IAudioVoice> m_voice;
public:
CStaticAudioPlayer(boo::IAudioVoiceEngine& engine, std::string_view path,
int loopStart, int loopEnd);
CStaticAudioPlayer(std::string_view path,
int loopStart, int loopEnd)
: CStaticAudioPlayer(*CAudioSys::GetVoiceEngine(), path, loopStart, loopEnd) {}
bool IsReady();
void DecodeMonoAndMix(s16* bufOut, u32 numSamples,
u32 cur, u32 loopEndCur, u32 loopStartCur,
int vol, g72x_state& state,
std::experimental::optional<g72x_state>& loopState) const;
void Decode(s16* bufOut, u32 numSamples);
void SetVolume(float vol)
{
xc0_volume = zeus::clamp(0.f, vol, 1.f) * 32768.f;
}
void StartMixing()
{
m_voice->start();
}
void StopMixing()
{
m_voice->stop();
}
};
}