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#pragma once
/*
* Copyright (C) 2005-2008 Team XBMC
* http://www.xbmc.org
*
* This Program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This Program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with XBMC; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#include "GUIControl.h"
#include "cores/IAudioCallback.h"
#include <list>
// forward definitions
class CVisualisation;
#define AUDIO_BUFFER_SIZE 512 // MUST BE A POWER OF 2!!!
#define MAX_AUDIO_BUFFERS 16
class CAudioBuffer
{
public:
CAudioBuffer(int iSize);
virtual ~CAudioBuffer();
const short* Get() const;
void Set(const unsigned char* psBuffer, int iSize, int iBitsPerSample);
private:
CAudioBuffer();
short* m_pBuffer;
int m_iLen;
};
class CGUIVisualisationControl :
public CGUIControl, public IAudioCallback
{
public:
CGUIVisualisationControl(int parentID, int controlID, float posX, float posY, float width, float height);
CGUIVisualisationControl(const CGUIVisualisationControl &from);
virtual ~CGUIVisualisationControl(void);
virtual CGUIVisualisationControl *Clone() const { return new CGUIVisualisationControl(*this); };
virtual void Render();
virtual void UpdateVisibility(const CGUIListItem *item = NULL);
virtual void FreeResources();
virtual void SetInvalid();
virtual void OnInitialize(int iChannels, int iSamplesPerSec, int iBitsPerSample);
virtual void OnAudioData(const unsigned char* pAudioData, int iAudioDataLength);
virtual bool OnAction(const CAction &action);
virtual bool OnMessage(CGUIMessage& message);
virtual bool CanFocus() const;
virtual bool CanFocusFromPoint(const CPoint &point) const;
CVisualisation *GetVisualisation();
private:
void FreeVisualisation();
void LoadVisualisation();
void CreateBuffers();
void ClearBuffers();
bool UpdateTrack();
CStdString m_currentVis;
CVisualisation* m_pVisualisation;
int m_iChannels;
int m_iSamplesPerSec;
int m_iBitsPerSample;
std::list<CAudioBuffer*> m_vecBuffers;
int m_iNumBuffers; // Number of Audio buffers
bool m_bWantsFreq;
float m_fFreq[2*AUDIO_BUFFER_SIZE]; // Frequency data
bool m_bCalculate_Freq; // True if the vis wants freq data
bool m_bInitialized;
CStdString m_AlbumThumb;
};
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