Diff: movie.h

Revision:

2:3935d2ed40cd

Child:

3:9376bf1f1bbd

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/movie.h	Wed Aug 20 05:24:38 2014 +0000
@@ -0,0 +1,74 @@
+#ifndef MOVIE_H
+#define MOVIE_H
+#include "mbed.h"
+#include "sbDriver.h"
+
+    /** movie class
+    * Used to send multiple frames of data to the Shiftbrite display.
+    *
+    * It does not inherit anything but does use a reference to a shiftBriteDisplay object.
+    * EXAMPLE:
+    * @code
+        #include "mbed.h"
+        #include "sbDriver.h"
+        #include "movie.h"
+        //6 leds example. Format it suitably for easy reading
+        unsigned short int aMovie[] = {
+        // LED1      LED2      LED3      LED4      LED5      LED6 
+        1023,0,0,    0,0,0,    0,0,0,    0,0,0,    0,0,0,    0,0,0,     //Frame 0
+            0,0,0, 1023,0,0,    0,0,0,    0,0,0,    0,0,0,    0,0,0,     //Frame 1
+            0,0,0,    0,0,0,    1023,0,0, 0,0,0,    0,0,0,    0,0,0,     //Frame 2
+            0,0,0,    0,0,0,    0,0,0,    1023,0,0, 0,0,0,    0,0,0,     //Frame 3
+            0,0,0,    0,0,0,    0,0,0,    0,0,0,    1023,0,0, 0,0,0,     //Frame 4
+            0,0,0,    0,0,0,    0,0,0,    0,0,0,    0,0,0,    1023,0,0,  //Frame 5
+            0,0,0,    0,0,0,    0,0,0,    0,0,0,    1023,0,0, 0,0,0,     //Frame 6
+            0,0,0,    0,0,0,    0,0,0,    1023,0,0, 0,0,0,    0,0,0,     //Frame 7
+            0,0,0,    0,0,0,    1023,0,0, 0,0,0,    0,0,0,    0,0,0,     //Frame 8
+            0,0,0, 1023,0,0,    0,0,0,    0,0,0,    0,0,0,    0,0,0      //Frame 9
+        /A simple 'cylon' scanner 'movie'    
+        };
+    
+        Serial PC(PTA2, PTA1);//
+
+        //Instanced of DigitalOut for control SB signals
+        DigitalOut latch(PTC16);//010=latch
+        DigitalOut enable(PTA13);//0= enabled
+        DigitalOut reset(PTC12);
+        //Instance of the SPI contoller for SB data
+        SPI spi(PTD2,NC,PTD1);//PDT2 = MOSI=DATA. PDT1=CLK
+
+
+        int main() {
+    
+            //Instanciate a ticker object to handle framerate updates for the SB display    
+            Ticker t;
+
+            //Instanciate a string of 6 sb modules and tell the driver object where the control/data pins are
+            shiftBriteDisplay sbDisplay(&PC,latch, enable, reset, spi,6);
+
+            movie myMovie(aMovie,sbDisplay,sizeof(aMovie));
+            myMovie.setRepeat(1);
+            t.attach(&myMovie,&movie::play,0.05);//Beware, if you go too fast here the MBED will crash
+
+            while(1){
+            }
+        }
+        @codeend
+    */
+
+class movie{
+    unsigned long int movieSize; //how many BYTES are in the movie array
+    //NB, this is NOT the number of frames. frame Tot = ((movieSize/sizeof(unsigned short int))/frameSize)/3
+    unsigned short int frameSize; //how many leds are in a display
+    unsigned long int currentFrame; // which frame are we displaying now
+    unsigned char f_repeat; // repeat when end is reached
+    unsigned short int * movie_p;//This is where the movie data is stored
+    shiftBriteDisplay r_display;//reference to the display
+public:
+    //movie(unsigned short int * movie_p, shiftBriteDisplay &display); // constructor - frameCount=how many frames in the movie
+    movie(unsigned short int * movie_p, shiftBriteDisplay &display, unsigned int movieSize);
+    //This must dynamically allocte 
+    void play();//cycles through all known frames, one frame each time it is called
+    void setRepeat(unsigned char r){f_repeat = r;};//repeat from the start or keep on showing the final frame of the movie
+};
+#endif
\ No newline at end of file