mirror of
https://github.com/dolphin-emu/dolphin
synced 2024-11-04 20:43:44 -05:00
77 lines
1.8 KiB
C++
77 lines
1.8 KiB
C++
// Copyright 2008 Dolphin Emulator Project
|
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
|
|
#pragma once
|
|
|
|
#include <thread>
|
|
|
|
#include "AudioCommon/SoundStream.h"
|
|
#include "Common/Event.h"
|
|
#include "Core/Core.h"
|
|
#include "Core/HW/AudioInterface.h"
|
|
#include "Core/HW/SystemTimers.h"
|
|
|
|
#ifdef _WIN32
|
|
#include <al.h>
|
|
#include <alc.h>
|
|
#include <alext.h>
|
|
|
|
// OpenAL requires a minimum of two buffers, three or more recommended
|
|
#define OAL_BUFFERS 3
|
|
#define OAL_MAX_FRAMES 4096
|
|
#define STEREO_CHANNELS 2
|
|
#define SURROUND_CHANNELS 6 // number of channels in surround mode
|
|
#define SIZE_SHORT 2
|
|
#define SIZE_INT32 4
|
|
#define SIZE_FLOAT 4 // size of a float in bytes
|
|
#define FRAME_STEREO_SHORT STEREO_CHANNELS* SIZE_SHORT
|
|
#define FRAME_SURROUND_FLOAT SURROUND_CHANNELS* SIZE_FLOAT
|
|
#define FRAME_SURROUND_SHORT SURROUND_CHANNELS* SIZE_SHORT
|
|
#define FRAME_SURROUND_INT32 SURROUND_CHANNELS* SIZE_INT32
|
|
#endif // _WIN32
|
|
|
|
// From AL_EXT_float32
|
|
#ifndef AL_FORMAT_STEREO_FLOAT32
|
|
#define AL_FORMAT_STEREO_FLOAT32 0x10011
|
|
#endif
|
|
|
|
// From AL_EXT_MCFORMATS
|
|
#ifndef AL_FORMAT_51CHN16
|
|
#define AL_FORMAT_51CHN16 0x120B
|
|
#endif
|
|
#ifndef AL_FORMAT_51CHN32
|
|
#define AL_FORMAT_51CHN32 0x120C
|
|
#endif
|
|
|
|
// Only X-Fi on Windows supports the alext AL_FORMAT_STEREO32 alext for now,
|
|
// but it is not documented or in "OpenAL/include/al.h".
|
|
#ifndef AL_FORMAT_STEREO32
|
|
#define AL_FORMAT_STEREO32 0x1203
|
|
#endif
|
|
|
|
class OpenALStream final : public SoundStream
|
|
{
|
|
#ifdef _WIN32
|
|
public:
|
|
OpenALStream() = default;
|
|
~OpenALStream() override;
|
|
bool Init() override;
|
|
void SetVolume(int volume) override;
|
|
bool SetRunning(bool running) override;
|
|
|
|
static bool IsValid();
|
|
|
|
private:
|
|
void SoundLoop();
|
|
|
|
std::thread m_thread;
|
|
Common::Flag m_run_thread;
|
|
|
|
std::vector<short> m_realtime_buffer;
|
|
std::array<ALuint, OAL_BUFFERS> m_buffers{};
|
|
ALuint m_source = 0;
|
|
ALfloat m_volume = 1;
|
|
|
|
#endif // _WIN32
|
|
};
|