antorcha/fw/image.h

/*
 * fw/image.h - Image data (upload and conversion)
 *
 * Written 2012 by Werner Almesberger
 * Copyright 2012 Werner Almesberger
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */


#ifndef IMAGE_H
#define	IMAGE_H

#include <stdbool.h>
#include <stdint.h>

#include <avr/pgmspace.h>

#include "proto.h"


#define	MAX_LINES	80


struct line {
	uint8_t d;		/* port D0-D7 */
	uint8_t cb;		/* port C0-C5, B6-B7 */
};


extern const struct line *image;
extern const uint8_t image_secret[2*PAYLOAD] PROGMEM;

#endif /* !IMAGE_H */
fw/: move image data from sweep.[ch] to new image.[ch] 2012-06-20 13:45:04 +03:00			`/*`
			`* fw/image.h - Image data (upload and conversion)`
			`*`
			`* Written 2012 by Werner Almesberger`
			`* Copyright 2012 Werner Almesberger`
			`*`
			`* This program is free software; you can redistribute it and/or modify`
			`* it under the terms of the GNU General Public License as published by`
			`* the Free Software Foundation; either version 2 of the License, or`
			`* (at your option) any later version.`
			`*/`


			`#ifndef IMAGE_H`
			`#define IMAGE_H`

			`#include <stdbool.h>`
			`#include <stdint.h>`

fw/image.* (image_secret): make image_secret global, for future sharing 2012-06-27 08:30:39 +03:00			`#include <avr/pgmspace.h>`

			`#include "proto.h"`

fw/: move image data from sweep.[ch] to new image.[ch] 2012-06-20 13:45:04 +03:00
fw/: reduce image width from 100 to 80 square pixels To achieve square 100 pixels (1:6.25 image aspect ratio), very vigorous movement is needed. 80 pixels (still 1:5) are easier. Initial estimates suggested a usable range of 1:4-1:5, so this is still good. Note that we may want to change the aspect ratio of the pixels themselves in the future (for smoother letters), so the pixel count may go up again. 80 pixels correspond to 11 characters in a 7x5 font with 2 pixels separation between characters. We may want to go up to 82 pixels to allow a 12th character - or use a proportional font. 2012-06-24 03:57:18 +03:00			`#define MAX_LINES 80`
fw/: move image data from sweep.[ch] to new image.[ch] 2012-06-20 13:45:04 +03:00

			`struct line {`
			`uint8_t d; /* port D0-D7 */`
			`uint8_t cb; /* port C0-C5, B6-B7 */`
			`};`


fw/: add image data upload (completely untested) 2012-06-20 16:30:40 +03:00			`extern const struct line *image;`
fw/image.* (image_secret): make image_secret global, for future sharing 2012-06-27 08:30:39 +03:00			`extern const uint8_t image_secret[2*PAYLOAD] PROGMEM;`
fw/: move image data from sweep.[ch] to new image.[ch] 2012-06-20 13:45:04 +03:00
			`#endif /* !IMAGE_H */`