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-rw-r--r--examples/circle.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/examples/circle.c b/examples/circle.c
new file mode 100644
index 0000000..40ad800
--- /dev/null
+++ b/examples/circle.c
@@ -0,0 +1,32 @@
+#define FBGL_IMPLEMENTATION
+#include "fbgl.h"
+
+int main(void)
+{
+ fbgl_t buffer;
+ if (fbgl_init("/dev/fb0", &buffer) == -1) {
+ fprintf(stdout, "Error: could not open framebuffer device\n");
+ return -1;
+ }
+
+ fbgl_point_t circ_center = { 960, 540 };
+
+ fbgl_set_bg(&buffer, 0x00FF0000);
+ uint32_t i = 0;
+ while (true) {
+ circ_center.x = 960 + 200 * cos(i * M_PI / 180);
+ circ_center.y = 540 + 200 * sin(i * M_PI / 180);
+
+ fbgl_draw_circle_outline(circ_center.x - 240,
+ circ_center.y - 240, 40, 0xFFFFFF,
+ &buffer);
+ i = (i + 1) % 360;
+ fbgl_draw_circle_filled(480, 540, 40, 0xFFFFFF, &buffer);
+ usleep(10000);
+ }
+
+ while (1) {
+ }
+
+ return 0;
+}