miniball

/*
 * Copyright (c) 2017 Erik Bosman <erik@minemu.org>
 *
 * Permission  is  hereby  granted,  free  of  charge,  to  any  person
 * obtaining  a copy  of  this  software  and  associated documentation
 * files (the "Software"),  to deal in the Software without restriction,
 * including  without  limitation  the  rights  to  use,  copy,  modify,
 * merge, publish, distribute, sublicense, and/or sell copies of the
 * Software,  and to permit persons to whom the Software is furnished to
 * do so, subject to the following conditions:
 *
 * The  above  copyright  notice  and this  permission  notice  shall be
 * included  in  all  copies  or  substantial portions  of the Software.
 *
 * THE SOFTWARE  IS  PROVIDED  "AS IS", WITHOUT WARRANTY  OF ANY KIND,
 * EXPRESS OR IMPLIED,  INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY,  FITNESS  FOR  A  PARTICULAR  PURPOSE  AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM,  DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT,  TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN
 * CONNECTION  WITH THE SOFTWARE  OR THE USE  OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * (http://opensource.org/licenses/mit-license.html)
 */

#include <avr/pgmspace.h>
#include <avr/sleep.h>
#include <util/delay_basic.h>


#include "tiny2812.h"


const uint8_t wave[256] PROGMEM =
{
0, 0, 0, 1, 2, 3, 5, 7, 9, 12, 15, 18, 21, 25, 28, 33, 37, 41, 46, 51, 56, 61, 67, 72, 78, 84, 90, 96, 102, 108, 115, 121, 127, 133, 139, 146, 152, 158, 164, 170, 176, 182, 187, 193, 198, 203, 208, 213, 217, 221, 226, 229, 233, 236, 239, 242, 245, 247, 249, 251, 252, 253, 254, 254, 255, 254, 254, 253, 252, 251, 249, 247, 245, 242, 239, 236, 233, 229, 226, 221, 217, 213, 208, 203, 198, 193, 187, 182, 176, 170, 164, 158, 152, 146, 139, 133, 127, 121, 115, 108, 102, 96, 90, 84, 78, 72, 67, 61, 56, 51, 46, 41, 37, 33, 28, 25, 21, 18, 15, 12, 9, 7, 5, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};


static int8_t r,g,b;


void next_frame(void)
{
	uint8_t i, j, c;

	j=0;
	r+=3; g+=3; b+=3;
	for (i=0; i<25; i++)
	{ 
		c = g&0x7f;
		frame[j++] = pgm_read_byte_near(wave+c);
		c = r&0x7f;
		frame[j++] = pgm_read_byte_near(wave+c);
		c = b&0x7f;
		frame[j++] = pgm_read_byte_near(wave+c);
	}
}

void main(void)
{
	r=0,g=0x55,b=0xaa;
	_delay_loop_2(MS_TIMEOUT); /* 1 ms, seems to prevent timer from not working sometimes... brownout(?, seems unlikely) time clock init(?)  */
	init();
	run();
}