mirror of
https://github.com/dolphin-emu/dolphin.git
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9eea60ca69
. Performance boost (Completely non-blocking between Sound thread and CPU thread, in the meantime keeping them thread safe) . Both 32KHz & 48KHz sound can be handled properly now (But up-sampling is still not implemented, and I don't think any game requires it.) . Strategy adjustment When your PC is *NOT* capable to run the game at 100%: >> DSound Could yield more fluent sound than OpenAL sometimes, but you will lose the sync between video & audio (since audio is played before video to guarantee fluency) >> OpenAL Ensures video & audio are always sync'ed, but sound could be intermittent(to let slow video catch up) . Changed default frame limit to: Auto (Somehow this can dramatically decrease the chance of wiimote desync in game NSMB) git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4724 8ced0084-cf51-0410-be5f-012b33b47a6e
93 lines
2.1 KiB
C++
93 lines
2.1 KiB
C++
// Copyright (C) 2003 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#ifndef _DSOUNDSTREAM_H_
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#define _DSOUNDSTREAM_H_
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#include "SoundStream.h"
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#include "Thread.h"
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#ifdef _WIN32
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#include <mmsystem.h>
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#include <dsound.h>
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#define BUFSIZE (1024 * 8 * 4)
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#endif
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class DSound : public SoundStream
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{
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#ifdef _WIN32
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Common::Thread *thread;
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Common::CriticalSection soundCriticalSection;
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Common::Event soundSyncEvent;
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void *hWnd;
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IDirectSound8* ds;
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IDirectSoundBuffer* dsBuffer;
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int bufferSize; //i bytes
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int m_volume;
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// playback position
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int currentPos;
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int lastPos;
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short realtimeBuffer[BUFSIZE / sizeof(short)];
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inline int FIX128(int x)
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{
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return x & (~127);
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}
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inline int ModBufferSize(int x)
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{
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return (x + bufferSize) % bufferSize;
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}
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bool CreateBuffer();
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bool WriteDataToBuffer(DWORD dwOffset, char* soundData, DWORD dwSoundBytes);
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public:
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DSound(CMixer *mixer, void *hWnd = NULL)
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: SoundStream(mixer)
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, bufferSize(0)
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, currentPos(0)
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, lastPos(0)
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, dsBuffer(0)
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, ds(0)
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{}
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virtual ~DSound() {}
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virtual bool Start();
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virtual void SoundLoop();
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virtual void SetVolume(int volume);
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virtual void Stop();
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virtual void Clear(bool mute);
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static bool isValid() { return true; }
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virtual bool usesMixer() const { return true; }
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virtual void Update();
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#else
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public:
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DSound(CMixer *mixer, void *hWnd = NULL)
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: SoundStream(mixer)
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{}
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#endif
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};
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#endif //_DSOUNDSTREAM_H_
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