usbloadergx/source/SoundOperations/BufferCircle.hpp

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/***************************************************************************
* Copyright (C) 2010
* by Dimok
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any
* damages arising from the use of this software.
*
* Permission is granted to anyone to use this software for any
* purpose, including commercial applications, and to alter it and
* redistribute it freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you
* must not claim that you wrote the original software. If you use
* this software in a product, an acknowledgment in the product
* documentation would be appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and
* must not be misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*
* for WiiXplorer 2010
***************************************************************************/
#ifndef BUFFER_CIRCLE_HPP_
#define BUFFER_CIRCLE_HPP_
#include <vector>
#include <gctypes.h>
class BufferCircle
{
public:
//!> Constructor
BufferCircle();
//!> Destructor
~BufferCircle();
//!> Set circle size
void Resize(int size);
//!> Get the circle size
int Size() { return SoundBuffer.size(); };
//!> Set/resize the buffer size
void SetBufferBlockSize(int size);
//!> Remove a buffer
void RemoveBuffer(int pos);
//!> Set all buffers clear
void ClearBuffer();
//!> Free all buffers
void FreeBuffer();
//!> Switch to next buffer
void LoadNext();
//!> Get the current buffer
u8 * GetBuffer() { if(!Valid(which)) return 0; return SoundBuffer[which]; };
//!> Get a buffer at a position
u8 * GetBuffer(int pos) { if(!Valid(pos)) return NULL; else return SoundBuffer[pos]; };
//!> Get next buffer
u8 * GetNextBuffer() { if(Size() <= 0) return 0; else return SoundBuffer[(which+1) % Size()]; };
//!> Get previous buffer
u8 * GetLastBuffer() { if(Size() <= 0) return 0; else return SoundBuffer[(which+Size()-1) % Size()]; };
//!> Get current buffer size
u32 GetBufferSize() { if(!Valid(which)) return 0; else return BufferSize[which]; };
//!> Get buffer size at position
u32 GetBufferSize(int pos) { if(!Valid(pos)) return 0; else return BufferSize[pos]; };
//!> Get previous buffer size
u32 GetLastBufferSize() { if(Size() <= 0) return 0; else return BufferSize[(which+Size()-1) % Size()]; };
//!> Is current buffer ready
bool IsBufferReady() { if(!Valid(which)) return false; else return BufferReady[which]; };
//!> Is a buffer at a position ready
bool IsBufferReady(int pos) { if(!Valid(pos)) return false; else return BufferReady[pos]; };
//!> Is next buffer ready
bool IsNextBufferReady() { if(Size() <= 0) return false; else return BufferReady[(which+1) % Size()]; };
//!> Is last buffer ready
bool IsLastBufferReady() { if(Size() <= 0) return false; else return BufferReady[(which+Size()-1) % Size()]; };
//!> Set a buffer at a position to a ready state
void SetBufferReady(int pos, bool st);
//!> Set the buffersize at a position
void SetBufferSize(int pos, int size);
//!> Get the current position in the circle
u16 Which() { return which; };
protected:
//!> Check if the position is a valid position in the vector
bool Valid(int pos) { return !(pos < 0 || pos >= Size()); };
u16 which;
u32 BufferBlockSize;
std::vector<u8 *> SoundBuffer;
std::vector<u32> BufferSize;
std::vector<bool> BufferReady;
};
#endif