Fixed some bugs when receiving large data.

common/app/app.c

@@ -3,7 +3,7 @@
 #include "system.h"
 #include "pixy.h"
 #include <stdio.h>
-
+#include <stdlib.h>
 
 bool pixy_connected = false;
 
@@ -113,10 +113,10 @@ int pixy_frame_test() {
                                       &videodata,        // pointer to mem address for returned frame
                                       END_IN_ARGS);
 
-
       if(return_value==0) {
             return_value = renderBA81(renderflags,xwidth,ywidth,size,videodata);
       } 
+
       return return_value;
 }
 
@@ -171,24 +171,41 @@ int renderBA81(uint8_t renderFlags, uint16_t width, uint16_t height, uint32_t fr
     // don't render top and bottom rows, and left and rightmost columns because of color
     // interpolation
     //uint32_t decodedimage[(width-2)*(height-2)];
-    uint16_t decodedimage[(width-2)*(height-2)];
-    
-    uint16_t* line = decodedimage;
-    for (y=1; y<height-1; y++)
-    {
-        //line = (unsigned int *)img.scanLine(y-1);
-        frame++;
-        for (x=1; x<width-1; x++, frame++)
-        {
-            interpolateBayer(width, x, y, frame, &r, &g, &b);
-            //*line++ = (0xff<<24) | (r<<16) | (g<<8) | (b<<0);
-            *line++ = RGB(r,g,b);
-        }
-        frame++;
-    }
-
-    tft_draw_bitmap_unscaled(0,0,width-2,height-2,decodedimage); 
+    uint16_t* decodedimage = malloc(sizeof(uint16_t)*(width-2)*(height-2));
    
+    if(decodedimage==NULL) { //not enough free space to decode image in memory
+        //decode & render image pixel by pixel
+	uint16_t* line = decodedimage;
+    	for (y=1; y<height-1; y++)
+        {
+                frame++;
+                for (x=1; x<width-1; x++, frame++)
+                {
+                    interpolateBayer(width, x, y, frame, &r, &g, &b);
+                    tft_draw_pixel(x-1,y-1,RGB(r,g,b));
+                }
+                frame++;
+         }
+    } else { //enough space  
+	    uint16_t* line = decodedimage;
+	    for (y=1; y<height-1; y++)
+	    {
+		//line = (unsigned int *)img.scanLine(y-1);
+		frame++;
+		for (x=1; x<width-1; x++, frame++)
+		{
+		    interpolateBayer(width, x, y, frame, &r, &g, &b);
+		    //*line++ = (0xff<<24) | (r<<16) | (g<<8) | (b<<0);
+		    *line++ = RGB(r,g,b);
+		}
+		frame++;
+	    }
+
+	    tft_draw_bitmap_unscaled(0,0,width-2,height-2,decodedimage); 
+	  
+	    free(decodedimage); 
+    }
+    
     return 0;
 }
 

common/lowlevel/ll_system.h

@@ -4,3 +4,4 @@
 bool ll_system_init();
 void ll_system_delay(uint32_t msec);
 void ll_system_process();
+void ll_system_toggle_led();

common/system/system.c

@@ -13,3 +13,7 @@ void system_delay(uint32_t msec) {
 void system_process() {
 	ll_system_process();
 }
+
+void system_toggle_led() {
+	ll_system_toggle_led();
+}

common/system/system.h

@@ -4,3 +4,4 @@
 bool system_init();
 void system_delay(uint32_t msec);
 void system_process();
+void system_toggle_led();