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* Split main.c into main.c/render.c/filters.c.

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This commit is contained in:
Sam Hocevar 2006-09-23 19:54:20 +00:00 committed by sam
parent 669808400e
commit 05204d2b7a
6 changed files with 248 additions and 180 deletions
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2
src/Makefile.am
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@ -1,7 +1,7 @@
bin_PROGRAMS = toilet
toilet_SOURCES = main.c
toilet_SOURCES = main.c render.c render.h filters.c filter.h
toilet_CFLAGS = `pkg-config --cflags cucul`
toilet_LDFLAGS = `pkg-config --libs cucul` @GETOPT_LIBS@

122
src/filters.c Normal file
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@ -0,0 +1,122 @@
/*
* TOIlet The Other Implementation’s letters
* Copyright (c) 2006 Sam Hocevar <sam@zoy.org>
* All Rights Reserved
*
* $Id$
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the Do What The Fuck You Want To
* Public License, Version 2, as published by Sam Hocevar. See
* http://sam.zoy.org/wtfpl/COPYING for more details.
*/
#include "config.h"
#if defined(HAVE_INTTYPES_H)
# include <inttypes.h>
#endif
#include <cucul.h>
#include "filters.h"
void filter_autocrop(cucul_canvas_t *cv)
{
unsigned int x, y, w, h;
unsigned int xmin, xmax, ymin, ymax;
xmin = w = cucul_get_canvas_width(cv);
xmax = 0;
ymin = h = cucul_get_canvas_height(cv);
ymax = 0;
for(y = 0; y < h; y++)
for(x = 0; x < w; x++)
{
unsigned long int ch = cucul_getchar(cv, x, y);
if(ch != (unsigned char)' ')
{
if(x < xmin)
xmin = x;
if(x > xmax)
xmax = x;
if(y < ymin)
ymin = y;
if(y > ymax)
ymax = y;
}
}
cucul_set_canvas_boundaries(cv, xmin, ymin,
xmax - xmin + 1, ymax - ymin + 1);
}
void filter_metal(cucul_canvas_t *cv)
{
static struct
{
char ch[6];
unsigned char fg, bg;
}
const palette[] =
{
{ " ", CUCUL_COLOR_LIGHTBLUE, CUCUL_COLOR_LIGHTBLUE },
{ "░", CUCUL_COLOR_BLUE, CUCUL_COLOR_LIGHTBLUE },
{ "▒", CUCUL_COLOR_BLUE, CUCUL_COLOR_LIGHTBLUE },
{ "░", CUCUL_COLOR_LIGHTBLUE, CUCUL_COLOR_BLUE },
{ " ", CUCUL_COLOR_BLUE, CUCUL_COLOR_BLUE },
{ " ", CUCUL_COLOR_LIGHTGRAY, CUCUL_COLOR_LIGHTGRAY },
{ "░", CUCUL_COLOR_DARKGRAY, CUCUL_COLOR_LIGHTGRAY },
{ "▒", CUCUL_COLOR_DARKGRAY, CUCUL_COLOR_LIGHTGRAY },
{ "░", CUCUL_COLOR_LIGHTGRAY, CUCUL_COLOR_DARKGRAY },
{ " ", CUCUL_COLOR_DARKGRAY, CUCUL_COLOR_DARKGRAY },
};
unsigned int x, y, w, h;
w = cucul_get_canvas_width(cv);
h = cucul_get_canvas_height(cv);
for(y = 0; y < h; y++)
for(x = 0; x < w; x++)
{
int i;
if(cucul_getchar(cv, x, y) == (unsigned char)' ')
continue;
i = y * 10 / h;
cucul_set_color(cv, palette[i].fg, palette[i].bg);
cucul_putstr(cv, x, y, palette[i].ch);
}
}
void filter_gay(cucul_canvas_t *cv)
{
static unsigned char const rainbow[] =
{
CUCUL_COLOR_LIGHTMAGENTA,
CUCUL_COLOR_LIGHTRED,
CUCUL_COLOR_YELLOW,
CUCUL_COLOR_LIGHTGREEN,
CUCUL_COLOR_LIGHTCYAN,
CUCUL_COLOR_LIGHTBLUE,
};
unsigned int x, y, w, h;
w = cucul_get_canvas_width(cv);
h = cucul_get_canvas_height(cv);
for(y = 0; y < h; y++)
for(x = 0; x < w; x++)
{
unsigned long int ch = cucul_getchar(cv, x, y);
if(ch != (unsigned char)' ')
{
cucul_set_color(cv, rainbow[(x / 2 + y) % 6],
CUCUL_COLOR_TRANSPARENT);
cucul_putchar(cv, x, y, ch);
}
}
}

17
src/filters.h Normal file
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@ -0,0 +1,17 @@
/*
* TOIlet The Other Implementation’s letters
* Copyright (c) 2006 Sam Hocevar <sam@zoy.org>
* All Rights Reserved
*
* $Id$
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the Do What The Fuck You Want To
* Public License, Version 2, as published by Sam Hocevar. See
* http://sam.zoy.org/wtfpl/COPYING for more details.
*/
extern void filter_autocrop(cucul_canvas_t *);
extern void filter_metal(cucul_canvas_t *);
extern void filter_gay(cucul_canvas_t *);

183
src/main.c
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@ -22,18 +22,10 @@
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <cucul.h>
#include "cucul.h"
#include "caca.h"
/* String to canvas transformations */
static cucul_canvas_t *cuculize_big(uint32_t const *, unsigned int);
static cucul_canvas_t *cuculize_tiny(uint32_t const *, unsigned int);
/* Canvas special effects */
static void filter_autocrop(cucul_canvas_t *);
static void filter_metal(cucul_canvas_t *);
static void filter_gay(cucul_canvas_t *);
#include "render.h"
#include "filters.h"
int main(int argc, char *argv[])
{
@ -153,7 +145,7 @@ int main(int argc, char *argv[])
}
/* Do gay stuff with our string (léopard) */
cv = cuculize_big(string, length);
cv = render_big(string, length);
filter_autocrop(cv);
if(flag_metal)
filter_metal(cv);
@ -171,170 +163,3 @@ int main(int argc, char *argv[])
return 0;
}
static cucul_canvas_t *cuculize_big(uint32_t const *string,
unsigned int length)
{
cucul_canvas_t *cv;
cucul_font_t *f;
char const * const * fonts;
unsigned char *buf;
unsigned int w, h, x, y, miny, maxy;
cv = cucul_create_canvas(length, 1);
for(x = 0; x < length; x++)
cucul_putchar(cv, x, 0, string[x]);
fonts = cucul_get_font_list();
f = cucul_load_font(fonts[0], 0);
/* Create our bitmap buffer (32-bit ARGB) */
w = cucul_get_canvas_width(cv) * cucul_get_font_width(f);
h = cucul_get_canvas_height(cv) * cucul_get_font_height(f);
buf = malloc(4 * w * h);
/* Render the canvas onto our image buffer */
cucul_render_canvas(cv, f, buf, w, h, 4 * w);
/* Free our canvas, and allocate a bigger one */
cucul_free_font(f);
cucul_free_canvas(cv);
cv = cucul_create_canvas(w, h);
/* Render the image buffer on the canvas */
cucul_set_color(cv, CUCUL_COLOR_WHITE, CUCUL_COLOR_TRANSPARENT);
cucul_clear_canvas(cv);
miny = h; maxy = 0;
for(y = 0; y < h; y++)
for(x = 0; x < w; x++)
{
unsigned char c = buf[4 * (x + y * w) + 2];
if(c >= 0xa0)
cucul_putstr(cv, x, y, "█");
else if(c >= 0x80)
cucul_putstr(cv, x, y, "▓");
else if(c >= 0x40)
cucul_putstr(cv, x, y, "▒");
else if(c >= 0x20)
cucul_putstr(cv, x, y, "░");
}
free(buf);
return cv;
}
static cucul_canvas_t *cuculize_tiny(uint32_t const *string,
unsigned int length)
{
unsigned int x;
cucul_canvas_t *cv = cucul_create_canvas(length, 1);
for(x = 0; x < length; x++)
cucul_putchar(cv, x, 0, string[x]);
return cv;
}
static void filter_autocrop(cucul_canvas_t *cv)
{
unsigned int x, y, w, h;
unsigned int xmin, xmax, ymin, ymax;
xmin = w = cucul_get_canvas_width(cv);
xmax = 0;
ymin = h = cucul_get_canvas_height(cv);
ymax = 0;
for(y = 0; y < h; y++)
for(x = 0; x < w; x++)
{
unsigned long int ch = cucul_getchar(cv, x, y);
if(ch != (unsigned char)' ')
{
if(x < xmin)
xmin = x;
if(x > xmax)
xmax = x;
if(y < ymin)
ymin = y;
if(y > ymax)
ymax = y;
}
}
cucul_set_canvas_boundaries(cv, xmin, ymin,
xmax - xmin + 1, ymax - ymin + 1);
}
static void filter_metal(cucul_canvas_t *cv)
{
static struct
{
char ch[6];
unsigned char fg, bg;
}
const palette[] =
{
{ " ", CUCUL_COLOR_LIGHTBLUE, CUCUL_COLOR_LIGHTBLUE },
{ "░", CUCUL_COLOR_BLUE, CUCUL_COLOR_LIGHTBLUE },
{ "▒", CUCUL_COLOR_BLUE, CUCUL_COLOR_LIGHTBLUE },
{ "░", CUCUL_COLOR_LIGHTBLUE, CUCUL_COLOR_BLUE },
{ " ", CUCUL_COLOR_BLUE, CUCUL_COLOR_BLUE },
{ " ", CUCUL_COLOR_LIGHTGRAY, CUCUL_COLOR_LIGHTGRAY },
{ "░", CUCUL_COLOR_DARKGRAY, CUCUL_COLOR_LIGHTGRAY },
{ "▒", CUCUL_COLOR_DARKGRAY, CUCUL_COLOR_LIGHTGRAY },
{ "░", CUCUL_COLOR_LIGHTGRAY, CUCUL_COLOR_DARKGRAY },
{ " ", CUCUL_COLOR_DARKGRAY, CUCUL_COLOR_DARKGRAY },
};
unsigned int x, y, w, h;
w = cucul_get_canvas_width(cv);
h = cucul_get_canvas_height(cv);
for(y = 0; y < h; y++)
for(x = 0; x < w; x++)
{
int i;
if(cucul_getchar(cv, x, y) == (unsigned char)' ')
continue;
i = y * 10 / h;
cucul_set_color(cv, palette[i].fg, palette[i].bg);
cucul_putstr(cv, x, y, palette[i].ch);
}
}
static void filter_gay(cucul_canvas_t *cv)
{
static unsigned char const rainbow[] =
{
CUCUL_COLOR_LIGHTMAGENTA,
CUCUL_COLOR_LIGHTRED,
CUCUL_COLOR_YELLOW,
CUCUL_COLOR_LIGHTGREEN,
CUCUL_COLOR_LIGHTCYAN,
CUCUL_COLOR_LIGHTBLUE,
};
unsigned int x, y, w, h;
w = cucul_get_canvas_width(cv);
h = cucul_get_canvas_height(cv);
for(y = 0; y < h; y++)
for(x = 0; x < w; x++)
{
unsigned long int ch = cucul_getchar(cv, x, y);
if(ch != (unsigned char)' ')
{
cucul_set_color(cv, rainbow[(x / 2 + y) % 6],
CUCUL_COLOR_TRANSPARENT);
cucul_putchar(cv, x, y, ch);
}
}
}

88
src/render.c Normal file
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@ -0,0 +1,88 @@
/*
* TOIlet The Other Implementation’s letters
* Copyright (c) 2006 Sam Hocevar <sam@zoy.org>
* All Rights Reserved
*
* $Id$
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the Do What The Fuck You Want To
* Public License, Version 2, as published by Sam Hocevar. See
* http://sam.zoy.org/wtfpl/COPYING for more details.
*/
#include "config.h"
#if defined(HAVE_INTTYPES_H)
# include <inttypes.h>
#endif
#include <stdlib.h>
#include <cucul.h>
#include "render.h"
cucul_canvas_t *render_big(uint32_t const *string, unsigned int length)
{
cucul_canvas_t *cv;
cucul_font_t *f;
char const * const * fonts;
unsigned char *buf;
unsigned int w, h, x, y, miny, maxy;
cv = cucul_create_canvas(length, 1);
for(x = 0; x < length; x++)
cucul_putchar(cv, x, 0, string[x]);
fonts = cucul_get_font_list();
f = cucul_load_font(fonts[0], 0);
/* Create our bitmap buffer (32-bit ARGB) */
w = cucul_get_canvas_width(cv) * cucul_get_font_width(f);
h = cucul_get_canvas_height(cv) * cucul_get_font_height(f);
buf = malloc(4 * w * h);
/* Render the canvas onto our image buffer */
cucul_render_canvas(cv, f, buf, w, h, 4 * w);
/* Free our canvas, and allocate a bigger one */
cucul_free_font(f);
cucul_free_canvas(cv);
cv = cucul_create_canvas(w, h);
/* Render the image buffer on the canvas */
cucul_set_color(cv, CUCUL_COLOR_WHITE, CUCUL_COLOR_TRANSPARENT);
cucul_clear_canvas(cv);
miny = h; maxy = 0;
for(y = 0; y < h; y++)
for(x = 0; x < w; x++)
{
unsigned char c = buf[4 * (x + y * w) + 2];
if(c >= 0xa0)
cucul_putstr(cv, x, y, "█");
else if(c >= 0x80)
cucul_putstr(cv, x, y, "▓");
else if(c >= 0x40)
cucul_putstr(cv, x, y, "▒");
else if(c >= 0x20)
cucul_putstr(cv, x, y, "░");
}
free(buf);
return cv;
}
cucul_canvas_t *render_tiny(uint32_t const *string, unsigned int length)
{
unsigned int x;
cucul_canvas_t *cv = cucul_create_canvas(length, 1);
for(x = 0; x < length; x++)
cucul_putchar(cv, x, 0, string[x]);
return cv;
}

16
src/render.h Normal file
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@ -0,0 +1,16 @@
/*
* TOIlet The Other Implementation’s letters
* Copyright (c) 2006 Sam Hocevar <sam@zoy.org>
* All Rights Reserved
*
* $Id$
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the Do What The Fuck You Want To
* Public License, Version 2, as published by Sam Hocevar. See
* http://sam.zoy.org/wtfpl/COPYING for more details.
*/
extern cucul_canvas_t *render_big(uint32_t const *, unsigned int);
extern cucul_canvas_t *render_tiny(uint32_t const *, unsigned int);