/*
 * Copyright 2005, Jérôme Duval. All rights reserved.
 * Distributed under the terms of the MIT License.
 *
 * Inspired by SoundCapture from Be newsletter (Media Kit Basics: 
 *      Consumers and Producers)
 */

#ifndef VUVIEW_H
#define VUVIEW_H

#include <Bitmap.h>
#include <View.h>


class VUView : public BView
{
public:
        VUView(BRect rect, uint32 resizeFlags);
        ~VUView();
        void AttachedToWindow();
        void DetachedFromWindow();
        void Draw(BRect updateRect);
        void ComputeLevels(const void* data, size_t size, uint32 format);
                        
private:
        void _Run();
        void _Quit();
        static int32 _RenderLaunch(void *data);
        void _RenderLoop();
        template<typename T> T _ComputeNextLevel(const void *data, 
                size_t size, uint32 format, int32 channel);
        
        thread_id fThreadId;
        BBitmap *fBitmap;
        BView *fBitmapView;
        bool fQuitting;
        int32 fLevelCount;
        int32 *fCurrentLevels;
        int32 fChannels;
};

#endif  /* VUVIEW_H */