Diff: WaveDemo.h

Revision:

0:d1e4929f6956

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WaveDemo.h	Fri Oct 03 13:37:30 2014 +0000
@@ -0,0 +1,63 @@
+
+#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 */
+