It is accomplished ...

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10 a95241bf-73f2-0310-859d-f6bbb57e9c96
2002-07-09 12:24:59 +00:00
commit 52a3801208
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+/*****************************************************************************/
+// StreamingGameSound.h
+//
+// This is "a class for all kinds of streaming (data not known beforehand)
+// game sounds."
+//
+//
+// Copyright (c) 2001 OpenBeOS Project
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+// and/or sell copies of the Software, and to permit persons to whom the 
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included 
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+/*****************************************************************************/
+
+#ifndef GAME_KIT_STREAMING_GAME_SOUND
+#define GAME_KIT_STREAMING_GAME_SOUND
+
+#include <SupportDefs.h>
+#include <GameSound.h>
+#include <Locker.h>
+
+class BStreamingGameSound : public BGameSound
+{
+public:
+	BStreamingGameSound( size_t inBufferFrameCount,
+		const gs_audio_format* pFormat, size_t inBufferCount = 2,
+		BGameSoundDevice* pDevice = NULL );
+
+	virtual ~BStreamingGameSound();
+
+	virtual	BGameSound* Clone() const;
+
+	virtual	status_t SetStreamHook( 
+		void (*hook)( void* pInCookie, void* pInBuffer, size_t inByteCount, BStreamingGameSound* pMe ),
+		void* pCookie );
+		
+	// The default is to call stream hook, if any.
+	virtual	void FillBuffer( void * inBuffer, size_t inByteCount );
+
+	virtual	status_t SetAttributes( gs_attribute* inAttributes,
+		size_t inAttributeCount );
+
+	virtual	status_t Perform( int32 selector, void* pData );
+
+protected:
+	BStreamingGameSound( BGameSoundDevice* pDevice );
+	
+	// Will allocate handle and call Init().
+	virtual	status_t SetParameters( size_t inBufferFrameCount,
+		const gs_audio_format* pFormat, size_t inBufferCount );
+
+	bool Lock();
+	void Unlock();
+
+private:
+
+	BLocker _m_lock;
+
+	static void stream_callback( void* pCookie, gs_id handle, 
+		void* pBuffer, int32 offset, int32 size, size_t bufSize );
+
+	// Leave these declarations private unless you plan on actually 
+	// implementing and using them.
+	BStreamingGameSound();
+	BStreamingGameSound( const BStreamingGameSound& );
+	BStreamingGameSound& operator=( const BStreamingGameSound& );
+};
+
+#endif // GAME_KIT_STREAMING_GAME_SOUND