led framing support (not called yet). Originally by sijuhamm, but heavily

[moodlight.git] / ledframing.c

diff --git a/ledframing.c b/ledframing.c
new file mode 100644 (file)
index 0000000..132c74e
--- /dev/null
+++ b/ledframing.c
@@ -0,0 +1,74 @@
+/* $Id: ledframing.c,v 1.1 2010/07/10 09:28:52 simimeie Exp $
+ * Functions for led "animations"
+ */
+
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <string.h>
+#include "ledframing.h"
+#include "ledpwm.h"
+#include "console.h"
+
+static uint8_t framesused;
+static uint8_t currentframe;
+static struct frame framebuffer[MAX_FRAMES];
+
+void ledframing_init() {
+  framesused = currentframe = 0;
+}
+
+uint8_t addframe_frame(struct frame fr) {
+  if ((framesused + 1) >= MAX_FRAMES) { /* Out of memory */
+    return 0;
+  }
+  if (fr.action > MAX_ACTION) { /* Invalid / unknown action */
+    return 0;
+  }
+  
+  framebuffer[framesused] = fr;
+  framesused++;
+  
+  return 1;
+}
+
+uint8_t addframe_fade(uint16_t duration, uint8_t red, uint8_t green, uint8_t blue) {
+  if ((framesused + 1) >= MAX_FRAMES) { /* Out of memory */
+    return 0;
+  }
+  
+  framebuffer[framesused].action = ACTION_FADE;
+  framebuffer[framesused].duration = duration;
+  framebuffer[framesused].rgb.re = red;
+  framebuffer[framesused].rgb.gr = green;
+  framebuffer[framesused].rgb.bl = blue;
+  framesused++;
+  
+  return 1;
+}
+
+uint8_t addframe_strobe(uint16_t duration, uint16_t onticks, uint16_t offticks) {
+  if ((framesused + 1) >= MAX_FRAMES) { /* Out of memory */
+    return 0;
+  }
+  
+  framebuffer[framesused].action = ACTION_STROBE;
+  framebuffer[framesused].duration = duration;
+  framebuffer[framesused].strobe.onticks = onticks;
+  framebuffer[framesused].strobe.offticks = offticks;
+  framesused++;
+  
+  return 1;
+}
+
+struct frame * getnextframe(void) {
+  if (currentframe < framesused) {
+    currentframe++;
+    return &framebuffer[currentframe - 1];
+  }
+  /* No frames left */
+  return NULL;
+}
+
+void resetframes() {
+  framesused = currentframe = 0;
+}