* Added the caca2tlf tool, which converts a libcaca font into a TOIlet font
using a naive pixel-to-glyphs algorithm. I will improve it later.
This commit is contained in:
Sam Hocevar
sam
parent
dadd049ca3
commit
eb711671a2
4 changed files with 164 additions and 3 deletions
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@ -1,5 +1,5 @@
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SUBDIRS = src fonts
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SUBDIRS = src tools fonts
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DIST_SUBDIRS = $(SUBDIRS)
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EXTRA_DIST = bootstrap
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@ -51,10 +51,10 @@ if test "${ac_cv_have_tiocgwinsz}" = "yes"; then
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fi
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CUCUL="no"
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PKG_CHECK_MODULES(cucul, cucul >= 0.99.beta6,
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PKG_CHECK_MODULES(cucul, cucul >= 0.99.beta9,
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[CUCUL="yes"],
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[AC_MSG_RESULT(no)
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AC_MSG_ERROR([you need libcucul version 0.99.beta6 or later])])
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AC_MSG_ERROR([you need libcucul version 0.99.beta9 or later])])
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AC_CACHE_CHECK([for build date],
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[ac_build_date],
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@ -74,6 +74,7 @@ CFLAGS="${CFLAGS} -Wall -Wpointer-arith -Wcast-align -Wcast-qual -Wstrict-protot
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AC_OUTPUT([
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Makefile
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src/Makefile
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tools/Makefile
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fonts/Makefile
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])
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8
tools/Makefile.am
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8
tools/Makefile.am
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@ -0,0 +1,8 @@
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# $Id: Makefile.am 929 2006-10-20 16:19:41Z sam $
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noinst_PROGRAMS = caca2tlf
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caca2tlf_SOURCES = caca2tlf.c
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caca2tlf_CFLAGS = `pkg-config --cflags cucul`
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caca2tlf_LDFLAGS = `pkg-config --libs cucul`
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152
tools/caca2tlf.c
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152
tools/caca2tlf.c
Normal file
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@ -0,0 +1,152 @@
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/*
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* caca2tlf Create a TOIlet font from a libcaca font
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* Copyright (c) 2006 Sam Hocevar <sam@zoy.org>
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* All Rights Reserved
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*
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* $Id$
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the Do What The Fuck You Want To
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* Public License, Version 2, as published by Sam Hocevar. See
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* http://sam.zoy.org/wtfpl/COPYING for more details.
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*/
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/*
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* This is the main program entry point.
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*/
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#include "config.h"
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#if defined(HAVE_INTTYPES_H)
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# include <inttypes.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <cucul.h>
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static void list_fonts(void);
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static void add_char(unsigned int);
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cucul_font_t *f;
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cucul_canvas_t *out, *onechar;
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unsigned long int const *blocks;
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uint8_t * image;
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unsigned int width, height;
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int main(int argc, char *argv[])
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{
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unsigned int b, i;
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if(argc < 2)
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{
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fprintf(stderr, "Wrong argument count. Usage: caca2tlf <font>\n");
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list_fonts();
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return -1;
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}
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f = cucul_load_font(argv[1], 0);
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if(!f)
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{
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fprintf(stderr, "Font \"%s\" not found.\n", argv[1]);
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list_fonts();
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return -2;
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}
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width = cucul_get_font_width(f);
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height = cucul_get_font_height(f);
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blocks = cucul_get_font_blocks(f);
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onechar = cucul_create_canvas(1, 1); /* FIXME: support double width */
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cucul_set_color_ansi(onechar, CUCUL_WHITE, CUCUL_BLACK);
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out = cucul_create_canvas(width + 2, height);
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image = malloc(4 * width * height);
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printf("tlf2a$ %u %u %u 0 3 0 0 0\n", height, height - 1, width + 2);
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printf("================================================================================\n");
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printf(" This font was automatically generated by caca2tlf\n");
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printf("================================================================================\n");
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for(i = 32; i < 127; i++)
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add_char(i);
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add_char(196);
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add_char(214);
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add_char(220);
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add_char(228);
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add_char(246);
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add_char(252);
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add_char(223);
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for(b = 0, i = 0; blocks[i + 1]; i += 2)
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{
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int j, n = (int)(blocks[i + 1] - blocks[i]);
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for(j = 0; j < n; j++)
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{
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char buf[7];
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unsigned int len;
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unsigned long int ch = blocks[i] + j;
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if(ch < 0x80)
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continue;
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len = cucul_utf32_to_utf8(buf, ch);
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buf[len] = '\0';
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printf("0x%.04lX %s\n", ch, buf);
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add_char(ch);
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}
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}
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cucul_free_canvas(out);
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cucul_free_canvas(onechar);
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free(image);
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cucul_free_font(f);
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return 0;
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}
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static void list_fonts(void)
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{
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char const * const * fonts;
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unsigned int i;
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fprintf(stderr, "Available fonts:\n");
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fonts = cucul_get_font_list();
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for(i = 0; fonts[i]; i++)
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fprintf(stderr, " \"%s\"\n", fonts[i]);
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}
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static void add_char(unsigned int ch)
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{
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cucul_buffer_t *buf;
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unsigned int x, y;
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cucul_putchar(onechar, 0, 0, ch);
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cucul_render_canvas(onechar, f, image, width, height, 4 * width);
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for(y = 0; y < height; y++)
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for(x = 0; x < width; x++)
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{
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uint8_t c = image[4 * (x + y * width) + 2];
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if(c >= 0xa0)
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cucul_putstr(out, x, y, "█");
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else if(c >= 0x80)
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cucul_putstr(out, x, y, "▓");
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else if(c >= 0x40)
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cucul_putstr(out, x, y, "▒");
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else if(c >= 0x20)
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cucul_putstr(out, x, y, "░");
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else
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cucul_putchar(out, x, y, ' ');
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}
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cucul_draw_line(out, width, 0, width, height - 1, "@");
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cucul_putchar(out, width + 1, height - 1, '@');
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buf = cucul_export_canvas(out, "utf8");
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fwrite(cucul_get_buffer_data(buf), cucul_get_buffer_size(buf), 1, stdout);
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cucul_free_buffer(buf);
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}
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