LosaDev source snapshot 2019

etc/Library/BVL/source/BandiVideoSound_DS.h

@@ -0,0 +1,89 @@
+////////////////////////////////////////////////////////////////////////////////////////////////////
+/// 
+/// BandiVideoLibrary 2.1
+/// 
+/// Copyright(C) 2008-2011 BandiSoft.com All rights reserved.
+///
+/// Visit http://www.bandisoft.com for more information.
+/// 
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+#pragma once
+
+#define DIRECTSOUND_VERSION 0x0800
+
+#include <dsound.h>
+#include "bandivid.h"
+
+
+class CBandiVideoSound_DS : public IBandiVideoSound
+{
+public:
+	static const UINT MAX_BUFFER_TIME	= 200;	// ms
+	static const UINT MIN_BUFFER_TIME	= 20;	// ms
+
+	static const UINT PLAY_SAMPLE_BLOCK = 1000;
+	static const UINT PLAY_SAMPLE_BLOCK_LEN = PLAY_SAMPLE_BLOCK*4;
+
+	CBandiVideoSound_DS();
+	virtual ~CBandiVideoSound_DS();
+
+	// IUnknown
+	STDMETHODIMP QueryInterface(REFIID riid, void **ppv) { return E_NOTIMPL; };
+	STDMETHODIMP_(ULONG) AddRef();
+	STDMETHODIMP_(ULONG) Release();
+
+	// IBandiVideoSound
+	HRESULT		Open(INT channels, INT samplerate, IBandiVideoSoundCB *callback);
+	void		Close();
+	HRESULT		Start();
+	HRESULT		Stop();
+	HRESULT		Pause(BOOL pause);
+	HRESULT		GetTime(INT64 &time);
+	HRESULT		SetVolume(INT volume);
+
+protected:
+	static unsigned WINAPI InitialThreadProc(LPVOID param)
+	{
+		CBandiVideoSound_DS *p = (CBandiVideoSound_DS*)param;
+		return p->ThreadProc();		
+	};
+	UINT	ThreadProc();
+	HRESULT	PlayDS();
+	DWORD	GetFreeBufferSize();
+
+	LONG				m_ref_count;
+
+	HWND				m_hwnd;				// Window Handle
+	HINSTANCE			m_hinst;			// Instance Handle
+	LPDIRECTSOUND8		m_ds;				// DirectSound Interface
+	LPDIRECTSOUNDBUFFER	m_dsb_primary;		// Primary buffer Interface
+	LPDIRECTSOUNDBUFFER m_dsb_secondary;	// DirectSound secondary sound buffer
+
+	UINT				m_channels;			// Number of Channnel
+	UINT				m_samplerate;		// Sample rate;
+
+	INT					m_outbuf_size_max;	
+	INT					m_outbuf_size_min;
+	
+	UINT				m_last_write_pos;	// Last write offset (in BYTE)
+	
+	INT					m_inbuf_samples;	// Number of samples in the buffer
+	INT					m_total_samples;	// Total number of written samples
+
+	LONGLONG			m_cur_play_time;	// 100nsec
+
+	CRITICAL_SECTION	m_crit_sec;
+	BOOL				m_crit_sec_inited;
+	
+	HANDLE				m_hevent;
+	HANDLE				m_hthread;
+	UINT				m_thread_id;
+
+	BOOL				m_playing;
+
+	BYTE				m_sample_block[PLAY_SAMPLE_BLOCK_LEN];
+	UINT				m_sample_block_size;
+
+	IBandiVideoSoundCB*	m_callback;
+};