www.pudn.com > Flirt.zip > ringbuffer.h

/* 
 Flirt, an SWF rendering library 
 Copyright (c) 2004-2006 Dave Hayden  
 All rights reserved. 
  
 http://www.opaque.net/flirt/ 
 
 This code is distributed under the two-clause BSD license. 
 Read the LICENSE file or visit the URL above for details 
*/ 
 
#include "flirt.h" 
 
struct ringBuffer 
{ 
	ddAudioSample* buffer; 
	int bufferLength; 
	 
	int readOffset; 
	int writeOffset; 
	int loopOffset; 
	int surplus; 
}; 
 
 
struct ringBuffer* 
newRingBuffer(int size); 
 
int 
ringBuffer_samplesRemaining(struct ringBuffer* ring); 
 
void 
ringBuffer_loop(struct ringBuffer* ring); 
 
void 
ringBuffer_setSurplus(struct ringBuffer* ring, int surplus); 
 
void 
ringBuffer_advanceWriteOffset(struct ringBuffer* ring, int count); 
 
ddAudioSample* 
ringBuffer_getWriteBuffer(struct ringBuffer* ring); 
 
void 
ringBuffer_writeSamplesToStream(struct ringBuffer* ring, unsigned char* stream, int samples);