- add eepromdata.h

[moodlight.git] / ledframing.c

/* $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;
}