PictureDemo.h

00001 
00002 #ifndef PICTUREDEMO_H
00003 #define PICTUREDEMO_H
00004 
00005 #include "EaLcdBoardGPIO.h"
00006 
00007 class PictureDemo {
00008 public:
00009 
00010     
00011     /** Set the address of the frame buffer to use.
00012      *
00013      *  It is the content of the frame buffer that is shown on the
00014      *  display. All the drawing on the frame buffer can be done
00015      *  'offline' and whenever it should be shown this function
00016      *  can be called with the address of the offline frame buffer.
00017      *
00018      *  @param pFrameBuf  Pointer to the frame buffer, which must be
00019      *                    3 times as big as the frame size (for tripple
00020      *                    buffering).
00021      *         dispWidth  The width of the display (in pixels).
00022      *         dispHeight The height of the display (in pixels).
00023      *         loops      Number of loops in the demo code.
00024      *         delayMs    Delay in milliseconds between schreen updates.
00025      *
00026      *  @returns
00027      *       none
00028      */
00029     PictureDemo(uint8_t *pFrameBuf, uint16_t dispWidth, uint16_t dispHeight);
00030     
00031     void run(EaLcdBoardGPIO& lcdBoard, int image, uint32_t delayMs);
00032 
00033 private:
00034     int32_t windowX;
00035     int32_t windowY;
00036     uint16_t *pFrmBuf;
00037     uint16_t *pFrmBuf1;
00038     uint16_t *pFrmBuf2;
00039     uint16_t *pFrmBuf3;
00040     
00041     void drawCentered(const unsigned char* pData, int size, uint32_t delayMs);
00042 };
00043 
00044 #endif /* PICTUREDEMO_H */
00045