![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
Graphical demo for the LPC4088 Experiment Base Board with one of the Display Expansion Kits. This program displays a number of dots in a 3D-projected wave.
WaveDemo.h
- Committer:
- embeddedartists
- Date:
- 2014-10-03
- Revision:
- 0:d1e4929f6956
File content as of revision 0:d1e4929f6956:
#ifndef WAVEDEMO_H #define WAVEDEMO_H #include "Graphics.h" #include "GFXFb.h" #include "EaLcdBoardGPIO.h" class WaveDemo { public: /** Set the address of the frame buffer to use. * * It is the content of the frame buffer that is shown on the * display. All the drawing on the frame buffer can be done * 'offline' and whenever it should be shown this function * can be called with the address of the offline frame buffer. * * @param pFrameBuf Pointer to the frame buffer, which must be * 3 times as big as the frame size (for tripple * buffering). * dispWidth The width of the display (in pixels). * dispHeight The height of the display (in pixels). * loops Number of loops in the demo code. * delayMs Delay in milliseconds between schreen updates. * * @returns * none */ WaveDemo(uint8_t *pFrameBuf, uint16_t dispWidth, uint16_t dispHeight); void run(EaLcdBoardGPIO& lcdBoard, uint32_t loops, uint32_t delayMs); private: enum Constants { N = 1024, // Number of dots SCALE = 8192, INCREMENT = 512, // INCREMENT = SCALE / sqrt(N) * 2 SPEED = 5 }; int32_t windowX; int32_t windowY; uint16_t *pFrmBuf; uint16_t *pFrmBuf1; uint16_t *pFrmBuf2; uint16_t *pFrmBuf3; Graphics graphics; int16_t sine[SCALE]; int16_t cosi[SCALE]; uint16_t fastsqrt(uint32_t n) const; void matrix(int16_t xyz[3][N], uint8_t rgb[3][N]); void rotate(int16_t xyz[3][N], uint8_t rgb[3][N], uint16_t angleX, uint16_t angleY, uint16_t angleZ); void draw(int16_t xyz[3][N], uint8_t rgb[3][N]); }; #endif /* WAVEDEMO_H */