initial commit

FIRMWARE/tty_graphics_demo.c

@@ -0,0 +1,38 @@
+#include "tty_graphics.h"
+#include <math.h>
+
+#ifdef __linux__
+#include <stdlib.h>
+#include <unistd.h>
+#endif
+
+// Size of the screen
+// Replace with your own variables or values
+#define graphics_width  80
+#define graphics_height 40
+
+int frame = 0;
+float f = 0.0;
+
+void do_pixel(int i, int j, float* R, float* G, float* B) {
+    float x = (float)i;
+    float y = (float)j;
+    *R = 0.5f*(sin(x*0.1+f)+1.0);
+    *G = 0.5f*(sin(y*0.1+2.0*f)+1.0);
+    *B = 0.5f*(sin((x+y)*0.05-3.0*f)+1.0);
+}
+
+int main() {
+    tty_graphics_init();   
+    for(;;) {
+	tty_graphics_fscan(graphics_width, graphics_height, do_pixel);
+	f += 0.1;
+        ++frame;
+        tty_graphics_reset_colors();
+        printf("frame = %d\n",frame);
+#ifdef __linux__       
+        usleep(40000);
+#endif       
+    }
+    return 0;
+}