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@0:d1e4929f6956, 2014-10-03 (annotated)
- Committer:
- embeddedartists
- Date:
- Fri Oct 03 13:37:30 2014 +0000
- Revision:
- 0:d1e4929f6956
First version
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
embeddedartists | 0:d1e4929f6956 | 1 | |
embeddedartists | 0:d1e4929f6956 | 2 | #ifndef WAVEDEMO_H |
embeddedartists | 0:d1e4929f6956 | 3 | #define WAVEDEMO_H |
embeddedartists | 0:d1e4929f6956 | 4 | |
embeddedartists | 0:d1e4929f6956 | 5 | #include "Graphics.h" |
embeddedartists | 0:d1e4929f6956 | 6 | #include "GFXFb.h" |
embeddedartists | 0:d1e4929f6956 | 7 | |
embeddedartists | 0:d1e4929f6956 | 8 | #include "EaLcdBoardGPIO.h" |
embeddedartists | 0:d1e4929f6956 | 9 | |
embeddedartists | 0:d1e4929f6956 | 10 | class WaveDemo { |
embeddedartists | 0:d1e4929f6956 | 11 | public: |
embeddedartists | 0:d1e4929f6956 | 12 | |
embeddedartists | 0:d1e4929f6956 | 13 | /** Set the address of the frame buffer to use. |
embeddedartists | 0:d1e4929f6956 | 14 | * |
embeddedartists | 0:d1e4929f6956 | 15 | * It is the content of the frame buffer that is shown on the |
embeddedartists | 0:d1e4929f6956 | 16 | * display. All the drawing on the frame buffer can be done |
embeddedartists | 0:d1e4929f6956 | 17 | * 'offline' and whenever it should be shown this function |
embeddedartists | 0:d1e4929f6956 | 18 | * can be called with the address of the offline frame buffer. |
embeddedartists | 0:d1e4929f6956 | 19 | * |
embeddedartists | 0:d1e4929f6956 | 20 | * @param pFrameBuf Pointer to the frame buffer, which must be |
embeddedartists | 0:d1e4929f6956 | 21 | * 3 times as big as the frame size (for tripple |
embeddedartists | 0:d1e4929f6956 | 22 | * buffering). |
embeddedartists | 0:d1e4929f6956 | 23 | * dispWidth The width of the display (in pixels). |
embeddedartists | 0:d1e4929f6956 | 24 | * dispHeight The height of the display (in pixels). |
embeddedartists | 0:d1e4929f6956 | 25 | * loops Number of loops in the demo code. |
embeddedartists | 0:d1e4929f6956 | 26 | * delayMs Delay in milliseconds between schreen updates. |
embeddedartists | 0:d1e4929f6956 | 27 | * |
embeddedartists | 0:d1e4929f6956 | 28 | * @returns |
embeddedartists | 0:d1e4929f6956 | 29 | * none |
embeddedartists | 0:d1e4929f6956 | 30 | */ |
embeddedartists | 0:d1e4929f6956 | 31 | WaveDemo(uint8_t *pFrameBuf, uint16_t dispWidth, uint16_t dispHeight); |
embeddedartists | 0:d1e4929f6956 | 32 | |
embeddedartists | 0:d1e4929f6956 | 33 | void run(EaLcdBoardGPIO& lcdBoard, uint32_t loops, uint32_t delayMs); |
embeddedartists | 0:d1e4929f6956 | 34 | |
embeddedartists | 0:d1e4929f6956 | 35 | private: |
embeddedartists | 0:d1e4929f6956 | 36 | |
embeddedartists | 0:d1e4929f6956 | 37 | enum Constants { |
embeddedartists | 0:d1e4929f6956 | 38 | N = 1024, // Number of dots |
embeddedartists | 0:d1e4929f6956 | 39 | SCALE = 8192, |
embeddedartists | 0:d1e4929f6956 | 40 | INCREMENT = 512, // INCREMENT = SCALE / sqrt(N) * 2 |
embeddedartists | 0:d1e4929f6956 | 41 | SPEED = 5 |
embeddedartists | 0:d1e4929f6956 | 42 | }; |
embeddedartists | 0:d1e4929f6956 | 43 | |
embeddedartists | 0:d1e4929f6956 | 44 | int32_t windowX; |
embeddedartists | 0:d1e4929f6956 | 45 | int32_t windowY; |
embeddedartists | 0:d1e4929f6956 | 46 | uint16_t *pFrmBuf; |
embeddedartists | 0:d1e4929f6956 | 47 | uint16_t *pFrmBuf1; |
embeddedartists | 0:d1e4929f6956 | 48 | uint16_t *pFrmBuf2; |
embeddedartists | 0:d1e4929f6956 | 49 | uint16_t *pFrmBuf3; |
embeddedartists | 0:d1e4929f6956 | 50 | |
embeddedartists | 0:d1e4929f6956 | 51 | Graphics graphics; |
embeddedartists | 0:d1e4929f6956 | 52 | |
embeddedartists | 0:d1e4929f6956 | 53 | int16_t sine[SCALE]; |
embeddedartists | 0:d1e4929f6956 | 54 | int16_t cosi[SCALE]; |
embeddedartists | 0:d1e4929f6956 | 55 | |
embeddedartists | 0:d1e4929f6956 | 56 | uint16_t fastsqrt(uint32_t n) const; |
embeddedartists | 0:d1e4929f6956 | 57 | void matrix(int16_t xyz[3][N], uint8_t rgb[3][N]); |
embeddedartists | 0:d1e4929f6956 | 58 | void rotate(int16_t xyz[3][N], uint8_t rgb[3][N], uint16_t angleX, uint16_t angleY, uint16_t angleZ); |
embeddedartists | 0:d1e4929f6956 | 59 | void draw(int16_t xyz[3][N], uint8_t rgb[3][N]); |
embeddedartists | 0:d1e4929f6956 | 60 | }; |
embeddedartists | 0:d1e4929f6956 | 61 | |
embeddedartists | 0:d1e4929f6956 | 62 | #endif /* WAVEDEMO_H */ |
embeddedartists | 0:d1e4929f6956 | 63 |