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* Merged again all export functions into cucul/export.c. They're all the 

same and they're very short (50-100 lines).
tags/v0.99.beta14
Sam Hocevar sam 19 years ago
parent
c5b827a44e
commit
66e06a687c
10 changed files with 678 additions and 850 deletions
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  1. +1
    -6
      cucul/Makefile.am
  2. +0
    -85
      cucul/cucul.c
  3. +0
    -9
      cucul/cucul_internals.h
  4. +677
    -0
      cucul/export.c
  5. +0
    -103
      cucul/export_ansi.c
  6. +0
    -83
      cucul/export_bitmap.c
  7. +0
    -190
      cucul/export_html.c
  8. +0
    -107
      cucul/export_irc.c
  9. +0
    -138
      cucul/export_ps.c
  10. +0
    -129
      cucul/export_svg.c

+ 1
- 6
cucul/Makefile.am View File

@@ -27,12 +27,7 @@ libcucul_la_SOURCES = \
font.c \ font.c \
font_mono9.h \ font_mono9.h \
font_monobold12.h \ font_monobold12.h \
export_irc.c \
export_ansi.c \
export_html.c \
export_ps.c \
export_svg.c \
export_bitmap.c \
export.c \
$(NULL) $(NULL)
libcucul_la_LDFLAGS = -no-undefined libcucul_la_LDFLAGS = -no-undefined
libcucul_la_LIBADD = @CUCUL_LIBS@ libcucul_la_LIBADD = @CUCUL_LIBS@


+ 0
- 85
cucul/cucul.c View File

@@ -247,91 +247,6 @@ int cucul_rand(int min, int max)
return min + (int)((1.0*(max-min+1)) * rand() / (RAND_MAX+1.0)); return min + (int)((1.0*(max-min+1)) * rand() / (RAND_MAX+1.0));
} }


/** \brief Export a canvas into a foreign format.
*
* This function exports a libcucul canvas into various foreign formats such
* as ANSI art, HTML, IRC colours, etc. One should use cucul_get_buffer_data()
* and cucul_get_buffer_size() to access the buffer contents. The allocated
* data is valid until cucul_free_buffer() is called.
*
* Valid values for \e format are:
*
* \li \e "ansi": export ANSI art (CP437 charset with ANSI colour codes).
*
* \li \e "html": export an HTML page with CSS information.
*
* \li \e "html3": export an HTML table that should be compatible with
* most navigators, including textmode ones.
*
* \li \e "irc": export UTF-8 text with mIRC colour codes.
*
* \li \e "ps": export a PostScript document.
*
* \li \e "svg": export an SVG vector image.
*
* \li \e "tga": export a TGA image.
*
* \param qq A libcucul canvas
* \param format A string describing the requested output format.
*/
cucul_buffer_t * cucul_create_export(cucul_t *qq, char const *format)
{
cucul_buffer_t *ex;

ex = malloc(sizeof(cucul_buffer_t));
ex->size = 0;
ex->data = NULL;

if(!strcasecmp("ansi", format))
_cucul_get_ansi(qq, ex);
else if(!strcasecmp("html", format))
_cucul_get_html(qq, ex);
else if(!strcasecmp("html3", format))
_cucul_get_html3(qq, ex);
else if(!strcasecmp("irc", format))
_cucul_get_irc(qq, ex);
else if(!strcasecmp("ps", format))
_cucul_get_ps(qq, ex);
else if(!strcasecmp("svg", format))
_cucul_get_svg(qq, ex);
else if(!strcasecmp("tga", format))
_cucul_get_tga(qq, ex);

if(ex->size == 0)
{
free(ex);
return NULL;
}

return ex;
}

/** \brief Get available export formats
*
* Return a list of available export formats. The list is a NULL-terminated
* array of strings, interleaving a string containing the internal value for
* the export format, to be used with \e cucul_create_export(), and a string
* containing the natural language description for that export format.
*
* \return An array of strings.
*/
char const * const * cucul_get_export_list(void)
{
static char const * const list[] =
{
"ansi", "ANSI",
"html", "HTML",
"html3", "backwards-compatible HTML",
"irc", "IRC with mIRC colours",
"ps", "PostScript document",
"svg", "SVG vector image",
"tga", "TGA image",
NULL, NULL
};

return list;
}

/** \brief Get the buffer size. /** \brief Get the buffer size.
* *
* This function returns the length (in bytes) of the memory area stored * This function returns the length (in bytes) of the memory area stored


+ 0
- 9
cucul/cucul_internals.h View File

@@ -71,13 +71,4 @@ uint32_t _cucul_argb32_to_rgb24fg(uint32_t);
uint32_t _cucul_argb32_to_rgb24bg(uint32_t); uint32_t _cucul_argb32_to_rgb24bg(uint32_t);
void _cucul_argb32_to_argb4(uint32_t, uint8_t[8]); void _cucul_argb32_to_argb4(uint32_t, uint8_t[8]);


/* Export functions */
extern void _cucul_get_ansi(cucul_t *, cucul_buffer_t *);
extern void _cucul_get_html(cucul_t *, cucul_buffer_t *);
extern void _cucul_get_html3(cucul_t *, cucul_buffer_t *);
extern void _cucul_get_irc(cucul_t *, cucul_buffer_t *);
extern void _cucul_get_ps(cucul_t *, cucul_buffer_t *);
extern void _cucul_get_svg(cucul_t *, cucul_buffer_t *);
extern void _cucul_get_tga(cucul_t *, cucul_buffer_t *);

#endif /* __CUCUL_INTERNALS_H__ */ #endif /* __CUCUL_INTERNALS_H__ */

+ 677
- 0
cucul/export.c View File

@@ -0,0 +1,677 @@
/*
* libcucul Canvas for ultrafast compositing of Unicode letters
* Copyright (c) 2002-2006 Sam Hocevar <sam@zoy.org>
* 2006 Jean-Yves Lamoureux <jylam@lnxscene.org>
* All Rights Reserved
*
* $Id$
*
* This library 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.
*/

/*
* This file contains various export functions
*/

#include "config.h"

#if !defined(__KERNEL__)
# include <stdlib.h>
# include <stdio.h>
# include <string.h>
#endif

#include "cucul.h"
#include "cucul_internals.h"

static void export_ansi(cucul_t *, cucul_buffer_t *);
static void export_html(cucul_t *, cucul_buffer_t *);
static void export_html3(cucul_t *, cucul_buffer_t *);
static void export_irc(cucul_t *, cucul_buffer_t *);
static void export_ps(cucul_t *, cucul_buffer_t *);
static void export_svg(cucul_t *, cucul_buffer_t *);
static void export_tga(cucul_t *, cucul_buffer_t *);

/** \brief Export a canvas into a foreign format.
*
* This function exports a libcucul canvas into various foreign formats such
* as ANSI art, HTML, IRC colours, etc. One should use cucul_get_buffer_data()
* and cucul_get_buffer_size() to access the buffer contents. The allocated
* data is valid until cucul_free_buffer() is called.
*
* Valid values for \e format are:
*
* \li \e "ansi": export ANSI art (CP437 charset with ANSI colour codes).
*
* \li \e "html": export an HTML page with CSS information.
*
* \li \e "html3": export an HTML table that should be compatible with
* most navigators, including textmode ones.
*
* \li \e "irc": export UTF-8 text with mIRC colour codes.
*
* \li \e "ps": export a PostScript document.
*
* \li \e "svg": export an SVG vector image.
*
* \li \e "tga": export a TGA image.
*
* \param qq A libcucul canvas
* \param format A string describing the requested output format.
*/
cucul_buffer_t * cucul_create_export(cucul_t *qq, char const *format)
{
cucul_buffer_t *ex;

ex = malloc(sizeof(cucul_buffer_t));
ex->size = 0;
ex->data = NULL;

if(!strcasecmp("ansi", format))
export_ansi(qq, ex);
else if(!strcasecmp("html", format))
export_html(qq, ex);
else if(!strcasecmp("html3", format))
export_html3(qq, ex);
else if(!strcasecmp("irc", format))
export_irc(qq, ex);
else if(!strcasecmp("ps", format))
export_ps(qq, ex);
else if(!strcasecmp("svg", format))
export_svg(qq, ex);
else if(!strcasecmp("tga", format))
export_tga(qq, ex);

if(ex->size == 0)
{
free(ex);
return NULL;
}

return ex;
}

/** \brief Get available export formats
*
* Return a list of available export formats. The list is a NULL-terminated
* array of strings, interleaving a string containing the internal value for
* the export format, to be used with \e cucul_create_export(), and a string
* containing the natural language description for that export format.
*
* \return An array of strings.
*/
char const * const * cucul_get_export_list(void)
{
static char const * const list[] =
{
"ansi", "ANSI",
"html", "HTML",
"html3", "backwards-compatible HTML",
"irc", "IRC with mIRC colours",
"ps", "PostScript document",
"svg", "SVG vector image",
"tga", "TGA image",
NULL, NULL
};

return list;
}

/*
* XXX: the following functions are local.
*/

/* Generate ANSI representation of current canvas. */
static void export_ansi(cucul_t *qq, cucul_buffer_t *ex)
{
static int const palette[] =
{
0, 4, 2, 6, 1, 5, 3, 7,
8, 12, 10, 14, 9, 13, 11, 15
};

char *cur;
unsigned int x, y;

/* 23 bytes assumed for max length per pixel ('\e[5;1;3x;4y;9x;10ym' plus
* 4 max bytes for a UTF-8 character).
* Add height*9 to that (zeroes color at the end and jump to next line) */
ex->size = (qq->height * 9) + (qq->width * qq->height * 23);
ex->data = malloc(ex->size);

cur = ex->data;

for(y = 0; y < qq->height; y++)
{
uint32_t *lineattr = qq->attr + y * qq->width;
uint32_t *linechar = qq->chars + y * qq->width;

uint8_t prevfg = -1;
uint8_t prevbg = -1;

for(x = 0; x < qq->width; x++)
{
uint8_t fg = palette[_cucul_argb32_to_ansi4fg(lineattr[x])];
uint8_t bg = palette[_cucul_argb32_to_ansi4bg(lineattr[x])];
uint32_t c = linechar[x];

if(fg != prevfg || bg != prevbg)
{
cur += sprintf(cur, "\033[0;");

if(fg < 8)
if(bg < 8)
cur += sprintf(cur, "3%d;4%dm", fg, bg);
else
cur += sprintf(cur, "5;3%d;4%d;10%dm",
fg, bg - 8, bg - 8);
else
if(bg < 8)
cur += sprintf(cur, "1;3%d;4%d;9%dm",
fg - 8, bg, fg - 8);
else
cur += sprintf(cur, "5;1;3%d;4%d;9%d;10%dm",
fg - 8, bg - 8, fg - 8, bg - 8);
}

*cur++ = c & 0x7f;

prevfg = fg;
prevbg = bg;
}

cur += sprintf(cur, "\033[0m\r\n");
}

/* Crop to really used size */
ex->size = (uintptr_t)(cur - ex->data);
ex->data = realloc(ex->data, ex->size);
}

/* Generate HTML representation of current canvas. */
static void export_html(cucul_t *qq, cucul_buffer_t *ex)
{
static int const palette[] =
{
0x000, 0x008, 0x080, 0x088, 0x800, 0x808, 0x880, 0x888,
0x444, 0x44f, 0x4f4, 0x4ff, 0xf44, 0xf4f, 0xff4, 0xfff,
};
char *cur;
unsigned int x, y, len;

/* The CSS palette: roughly 13000 bytes
* A line: 7 chars for "<br />\n"
* A glyph: 18 chars for "<span class='bxx'>"
* up to 9 chars for "&#xxxxxx;", far less for pure ASCII
* 7 chars for "</span>" */
ex->size = 13000 + qq->height * (7 + qq->width * (18 + 9 + 7));
ex->data = malloc(ex->size);

cur = ex->data;

/* HTML header */
cur += sprintf(cur, "<html>\n<head>\n<title>Generated by libcaca %s</title>\n", VERSION);

/* CSS */
cur += sprintf(cur, "<style>\n");
cur += sprintf(cur, ".caca { font-family: monospace, fixed; font-weight: bold; }");
for(x = 0; x < 0x100; x++)
{
cur += sprintf(cur, ".b%02x { color:#%03x; background-color:#%03x; }\n",
x, palette[x & 0xf ], palette[x >> 4]);
}
cur += sprintf(cur, "</style>\n</head>\n<body>\n");

cur += sprintf(cur, "<div cellpadding='0' cellspacing='0' style='%s'>\n",
"font-family: monospace, fixed; font-weight: bold;");

for(y = 0; y < qq->height; y++)
{
uint32_t *lineattr = qq->attr + y * qq->width;
uint32_t *linechar = qq->chars + y * qq->width;

for(x = 0; x < qq->width; x += len)
{
cur += sprintf(cur, "<span class='b%02x'>",
_cucul_argb32_to_ansi8(lineattr[x]));

for(len = 0;
x + len < qq->width && lineattr[x + len] == lineattr[x];
len++)
{
if(linechar[x + len] <= 0x00000020)
cur += sprintf(cur, "&nbsp;");
else if(linechar[x + len] < 0x00000080)
cur += sprintf(cur, "%c", linechar[x + len]);
else
cur += sprintf(cur, "&#%i;", linechar[x + len]);
}
cur += sprintf(cur, "</span>");
}
/* New line */
cur += sprintf(cur, "<br />\n");
}

cur += sprintf(cur, "</div></body></html>\n");

/* Crop to really used size */
ex->size = strlen(ex->data) + 1;
ex->data = realloc(ex->data, ex->size);
}

/* Export an HTML3 document. This function is way bigger than export_html(),
* but permits viewing in old browsers (or limited ones such as links). It
* will not work under gecko (mozilla rendering engine) unless you set a
* correct header. */
static void export_html3(cucul_t *qq, cucul_buffer_t *ex)
{
static int const palette[] =
{
0x000000, 0x000088, 0x008800, 0x008888,
0x880000, 0x880088, 0x888800, 0x888888,
0x444444, 0x4444ff, 0x44ff44, 0x44ffff,
0xff4444, 0xff44ff, 0xffff44, 0xffffff,
};

char *cur;
unsigned int x, y, len;

/* The CSS palette: roughly 13000 bytes
* A line: 10 chars for "<tr></tr>\n"
* A glyph: 40 chars for "<td bgcolor=#xxxxxx><font color=#xxxxxx>"
* up to 9 chars for "&#xxxxxx;", far less for pure ASCII
* 12 chars for "</font></td>" */
ex->size = 13000 + qq->height * (10 + qq->width * (40 + 9 + 12));
ex->data = malloc(ex->size);

cur = ex->data;

/* Table */
cur += sprintf(cur, "<table cols='%d' cellpadding='0' cellspacing='0'>\n",
qq->height);

for(y = 0; y < qq->height; y++)
{
uint32_t *lineattr = qq->attr + y * qq->width;
uint32_t *linechar = qq->chars + y * qq->width;

cur += sprintf(cur, "<tr>");

for(x = 0; x < qq->width; x += len)
{
unsigned int i;

/* Use colspan option to factorize cells with same attributes
* (see below) */
len = 1;
while(x + len < qq->width && lineattr[x + len] == lineattr[x])
len++;

cur += sprintf(cur, "<td bgcolor=#%06x",
palette[_cucul_argb32_to_ansi4bg(lineattr[x])]);

if(len > 1)
cur += sprintf(cur, " colspan=%d", len);

cur += sprintf(cur, "><font color=#%06x>",
palette[_cucul_argb32_to_ansi4fg(lineattr[x])]);

for(i = 0; i < len; i++)
{
if(linechar[x + i] <= 0x00000020)
cur += sprintf(cur, "&nbsp;");
else if(linechar[x + i] < 0x00000080)
cur += sprintf(cur, "%c", linechar[x + i]);
else
cur += sprintf(cur, "&#%i;", linechar[x + i]);
}

cur += sprintf(cur, "</font></td>");
}
cur += sprintf(cur, "</tr>\n");
}

/* Footer */
cur += sprintf(cur, "</table>\n");

/* Crop to really used size */
ex->size = (uintptr_t)(cur - ex->data);
ex->data = realloc(ex->data, ex->size);
}

/* Export a text file with IRC colours */
static void export_irc(cucul_t *qq, cucul_buffer_t *ex)
{
static int const palette[] =
{
1, 2, 3, 10, 5, 6, 7, 15, /* Dark */
14, 12, 9, 11, 4, 13, 8, 0, /* Light */
};

char *cur;
unsigned int x, y;

/* 11 bytes assumed for max length per pixel. Worst case scenario:
* ^Cxx,yy 6 bytes
* ^B^B 2 bytes
* c 1 byte
* \r\n 2 bytes
* In real life, the average bytes per pixel value will be around 5.
*/

ex->size = 2 + (qq->width * qq->height * 11);
ex->data = malloc(ex->size);

cur = ex->data;

for(y = 0; y < qq->height; y++)
{
uint32_t *lineattr = qq->attr + y * qq->width;
uint32_t *linechar = qq->chars + y * qq->width;

uint8_t prevfg = -1;
uint8_t prevbg = -1;

for(x = 0; x < qq->width; x++)
{
uint8_t fg = palette[_cucul_argb32_to_ansi4fg(lineattr[x])];
uint8_t bg = palette[_cucul_argb32_to_ansi4bg(lineattr[x])];
uint32_t c = linechar[x];

if(bg == prevbg)
{
if(fg == prevfg)
; /* Same fg/bg, do nothing */
else if(c == (uint32_t)' ')
fg = prevfg; /* Hackety hack */
else
{
cur += sprintf(cur, "\x03%d", fg);
if(c >= (uint32_t)'0' && c <= (uint32_t)'9')
cur += sprintf(cur, "\x02\x02");
}
}
else
{
if(fg == prevfg)
cur += sprintf(cur, "\x03,%d", bg);
else
cur += sprintf(cur, "\x03%d,%d", fg, bg);

if(c >= (uint32_t)'0' && c <= (uint32_t)'9')
cur += sprintf(cur, "\x02\x02");
}
*cur++ = c & 0x7f;
prevfg = fg;
prevbg = bg;
}
*cur++ = '\r';
*cur++ = '\n';
}

/* Crop to really used size */
ex->size = (uintptr_t)(cur - ex->data);
ex->data = realloc(ex->data, ex->size);
}

/* Export a PostScript document. */
static void export_ps(cucul_t *qq, cucul_buffer_t *ex)
{
static char const *ps_header =
"%!\n"
"%% libcaca PDF export\n"
"%%LanguageLevel: 2\n"
"%%Pages: 1\n"
"%%DocumentData: Clean7Bit\n"
"/csquare {\n"
" newpath\n"
" 0 0 moveto\n"
" 0 1 rlineto\n"
" 1 0 rlineto\n"
" 0 -1 rlineto\n"
" closepath\n"
" setrgbcolor\n"
" fill\n"
"} def\n"
"/S {\n"
" Show\n"
"} bind def\n"
"/Courier-Bold findfont\n"
"8 scalefont\n"
"setfont\n"
"gsave\n"
"6 10 scale\n";

char *cur;
unsigned int x, y;

/* 200 is arbitrary but should be ok */
ex->size = strlen(ps_header) + (qq->width * qq->height * 200);
ex->data = malloc(ex->size);

cur = ex->data;

/* Header */
cur += sprintf(cur, "%s", ps_header);

/* Background, drawn using csquare macro defined in header */
for(y = qq->height; y--; )
{
uint32_t *lineattr = qq->attr + y * qq->width;

for(x = 0; x < qq->width; x++)
{
uint8_t argb[8];
_cucul_argb32_to_argb4(*lineattr++, argb);
cur += sprintf(cur, "1 0 translate\n %f %f %f csquare\n",
(float)argb[1] * (1.0 / 0xf),
(float)argb[2] * (1.0 / 0xf),
(float)argb[3] * (1.0 / 0xf));
}

/* Return to beginning of the line, and jump to the next one */
cur += sprintf(cur, "-%d 1 translate\n", qq->width);
}

cur += sprintf(cur, "grestore\n"); /* Restore transformation matrix */

for(y = qq->height; y--; )
{
uint32_t *lineattr = qq->attr + (qq->height - y - 1) * qq->width;
uint32_t *linechar = qq->chars + (qq->height - y - 1) * qq->width;

for(x = 0; x < qq->width; x++)
{
uint8_t argb[8];
uint32_t c = *linechar++;

_cucul_argb32_to_argb4(*lineattr++, argb);

cur += sprintf(cur, "newpath\n");
cur += sprintf(cur, "%d %d moveto\n", (x + 1) * 6, y * 10 + 2);
cur += sprintf(cur, "%f %f %f setrgbcolor\n",
(float)argb[5] * (1.0 / 0xf),
(float)argb[6] * (1.0 / 0xf),
(float)argb[7] * (1.0 / 0xf));

if(c < 0x00000020)
cur += sprintf(cur, "(?) show\n");
else if(c >= 0x00000080)
cur += sprintf(cur, "(?) show\n");
else switch((uint8_t)(c & 0x7f))
{
case '\\':
case '(':
case ')':
cur += sprintf(cur, "(\\%c) show\n", c);
break;
default:
cur += sprintf(cur, "(%c) show\n", c);
break;
}
}
}

cur += sprintf(cur, "showpage\n");

/* Crop to really used size */
ex->size = (uintptr_t)(cur - ex->data);
ex->data = realloc(ex->data, ex->size);
}

/* Export an SVG vector image */
static void export_svg(cucul_t *qq, cucul_buffer_t *ex)
{
static char const svg_header[] =
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
"<svg width=\"%d\" height=\"%d\" viewBox=\"0 0 %d %d\""
" xmlns=\"http://www.w3.org/2000/svg\""
" xmlns:xlink=\"http://www.w3.org/1999/xlink\""
" xml:space=\"preserve\" version=\"1.1\" baseProfile=\"full\">\n";

char *cur;
unsigned int x, y;

/* 200 is arbitrary but should be ok */
ex->size = strlen(svg_header) + (qq->width * qq->height * 200);
ex->data = malloc(ex->size);

cur = ex->data;

/* Header */
cur += sprintf(cur, svg_header, qq->width * 6, qq->height * 10,
qq->width * 6, qq->height * 10);

cur += sprintf(cur, " <g id=\"mainlayer\" font-size=\"12\">\n");

/* Background */
for(y = 0; y < qq->height; y++)
{
uint32_t *lineattr = qq->attr + y * qq->width;

for(x = 0; x < qq->width; x++)
{
cur += sprintf(cur, "<rect style=\"fill:#%.03x\" x=\"%d\" y=\"%d\""
" width=\"6\" height=\"10\"/>\n",
_cucul_argb32_to_rgb12bg(*lineattr++),
x * 6, y * 10);
}
}

/* Text */
for(y = 0; y < qq->height; y++)
{
uint32_t *lineattr = qq->attr + y * qq->width;
uint32_t *linechar = qq->chars + y * qq->width;

for(x = 0; x < qq->width; x++)
{
uint32_t c = *linechar++;

cur += sprintf(cur, "<text style=\"fill:#%.03x\" "
"x=\"%d\" y=\"%d\">",
_cucul_argb32_to_rgb12fg(*lineattr++),
x * 6, (y * 10) + 10);
if(c < 0x00000020)
cur += sprintf(cur, "?");
else if(c > 0x0000007f)
{
static const uint8_t mark[7] =
{
0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC
};

char buf[10], *parser;
int bytes = (c < 0x800) ? 2 : (c < 0x10000) ? 3 : 4;

buf[bytes] = '\0';
parser = buf + bytes;

switch(bytes)
{
case 4: *--parser = (c | 0x80) & 0xbf; c >>= 6;
case 3: *--parser = (c | 0x80) & 0xbf; c >>= 6;
case 2: *--parser = (c | 0x80) & 0xbf; c >>= 6;
}
*--parser = c | mark[bytes];

cur += sprintf(cur, "%s", buf);
}
else switch((uint8_t)c)
{
case '>': cur += sprintf(cur, "&gt;"); break;
case '<': cur += sprintf(cur, "&lt;"); break;
case '&': cur += sprintf(cur, "&amp;"); break;
default: cur += sprintf(cur, "%c", c); break;
}
cur += sprintf(cur, "</text>\n");
}
}

cur += sprintf(cur, " </g>\n");
cur += sprintf(cur, "</svg>\n");

/* Crop to really used size */
ex->size = (uintptr_t)(cur - ex->data);
ex->data = realloc(ex->data, ex->size);
}

/* Export a TGA image */
static void export_tga(cucul_t *qq, cucul_buffer_t *ex)
{
char const * const * fonts;
char * cur;
cucul_font_t *f;
unsigned int i, w, h;

fonts = cucul_get_font_list();
if(!fonts[0])
return;

f = cucul_load_font(fonts[0], 0);

w = cucul_get_width(qq) * cucul_get_font_width(f);
h = cucul_get_height(qq) * cucul_get_font_height(f);

ex->size = w * h * 4 + 18; /* 32 bpp + 18 bytes for the header */
ex->data = malloc(ex->size);

cur = ex->data;

/* ID Length */
cur += sprintf(cur, "%c", 0);
/* Color Map Type: no colormap */
cur += sprintf(cur, "%c", 0);
/* Image Type: uncompressed truecolor */
cur += sprintf(cur, "%c", 2);
/* Color Map Specification: no color map */
memset(cur, 0, 5); cur += 5;

/* Image Specification */
cur += sprintf(cur, "%c%c", 0, 0); /* X Origin */
cur += sprintf(cur, "%c%c", 0, 0); /* Y Origin */
cur += sprintf(cur, "%c%c", w & 0xff, w >> 8); /* Width */
cur += sprintf(cur, "%c%c", h & 0xff, h >> 8); /* Height */
cur += sprintf(cur, "%c", 32); /* Pixel Depth */
cur += sprintf(cur, "%c", 40); /* Image Descriptor */

/* Image ID: no ID */
/* Color Map Data: no colormap */

/* Image Data */
cucul_render_canvas(qq, f, cur, w, h, 4 * w);

/* Swap bytes. What a waste of time. */
for(i = 0; i < w * h * 4; i += 4)
{
char w;
w = cur[i]; cur[i] = cur[i + 3]; cur[i + 3] = w;
w = cur[i + 1]; cur[i + 1] = cur[i + 2]; cur[i + 2] = w;
}

cucul_free_font(f);
}


+ 0
- 103
cucul/export_ansi.c View File

@@ -1,103 +0,0 @@
/*
* libcucul Canvas for ultrafast compositing of Unicode letters
* Copyright (c) 2002-2006 Sam Hocevar <sam@zoy.org>
* 2006 Jean-Yves Lamoureux <jylam@lnxscene.org>
* All Rights Reserved
*
* $Id$
*
* This library 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.
*/

/*
* This file contains export functions for ANSI
*/

#include "config.h"

#if !defined(__KERNEL__)
# include <stdlib.h>
# include <stdio.h>
# include <string.h>
#endif

#include "cucul.h"
#include "cucul_internals.h"

/** \brief Generate ANSI representation of current image.
*
* This function generates and returns an ANSI representation of
* the current image.
* \param trailing if 0, raw ANSI will be generated. Otherwise, you'll be
* able to cut/paste the result to a function like printf
* \return buffer containing generated ANSI codes as a big string
*/
void _cucul_get_ansi(cucul_t *qq, cucul_buffer_t *ex)
{
static int const palette[] =
{
0, 4, 2, 6, 1, 5, 3, 7,
8, 12, 10, 14, 9, 13, 11, 15
};

char *cur;
unsigned int x, y;

/* 23 bytes assumed for max length per pixel ('\e[5;1;3x;4y;9x;10ym' plus
* 4 max bytes for a UTF-8 character).
* Add height*9 to that (zeroes color at the end and jump to next line) */
ex->size = (qq->height * 9) + (qq->width * qq->height * 23);
ex->data = malloc(ex->size);

cur = ex->data;

for(y = 0; y < qq->height; y++)
{
uint32_t *lineattr = qq->attr + y * qq->width;
uint32_t *linechar = qq->chars + y * qq->width;

uint8_t prevfg = -1;
uint8_t prevbg = -1;

for(x = 0; x < qq->width; x++)
{
uint8_t fg = palette[_cucul_argb32_to_ansi4fg(lineattr[x])];
uint8_t bg = palette[_cucul_argb32_to_ansi4bg(lineattr[x])];
uint32_t c = linechar[x];

if(fg != prevfg || bg != prevbg)
{
cur += sprintf(cur, "\033[0;");

if(fg < 8)
if(bg < 8)
cur += sprintf(cur, "3%d;4%dm", fg, bg);
else
cur += sprintf(cur, "5;3%d;4%d;10%dm",
fg, bg - 8, bg - 8);
else
if(bg < 8)
cur += sprintf(cur, "1;3%d;4%d;9%dm",
fg - 8, bg, fg - 8);
else
cur += sprintf(cur, "5;1;3%d;4%d;9%d;10%dm",
fg - 8, bg - 8, fg - 8, bg - 8);
}

*cur++ = c & 0x7f;

prevfg = fg;
prevbg = bg;
}

cur += sprintf(cur, "\033[0m\r\n");
}

/* Crop to really used size */
ex->size = (uintptr_t)(cur - ex->data);
ex->data = realloc(ex->data, ex->size);
}


+ 0
- 83
cucul/export_bitmap.c View File

@@ -1,83 +0,0 @@
/*
* libcucul Canvas for ultrafast compositing of Unicode letters
* Copyright (c) 2002-2006 Sam Hocevar <sam@zoy.org>
* All Rights Reserved
*
* $Id$
*
* This library 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.
*/

/*
* This file contains export functions for bitmap formats
*/

#include "config.h"

#if !defined(__KERNEL__)
# include <stdlib.h>
# include <stdio.h>
# include <string.h>
#endif

#include "cucul.h"
#include "cucul_internals.h"

void _cucul_get_tga(cucul_t *qq, cucul_buffer_t *ex)
{
char const * const * fonts;
char * cur;
cucul_font_t *f;
unsigned int i, w, h;

fonts = cucul_get_font_list();
if(!fonts[0])
return;

f = cucul_load_font(fonts[0], 0);

w = cucul_get_width(qq) * cucul_get_font_width(f);
h = cucul_get_height(qq) * cucul_get_font_height(f);

ex->size = w * h * 4 + 18;
ex->data = malloc(ex->size);

cur = ex->data;

/* ID Length */
cur += sprintf(cur, "%c", 0);
/* Color Map Type: no colormap */
cur += sprintf(cur, "%c", 0);
/* Image Type: uncompressed truecolor */
cur += sprintf(cur, "%c", 2);
/* Color Map Specification: no color map */
memset(cur, 0, 5); cur += 5;

/* Image Specification */
cur += sprintf(cur, "%c%c", 0, 0); /* X Origin */
cur += sprintf(cur, "%c%c", 0, 0); /* Y Origin */
cur += sprintf(cur, "%c%c", w & 0xff, w >> 8); /* Width */
cur += sprintf(cur, "%c%c", h & 0xff, h >> 8); /* Height */
cur += sprintf(cur, "%c", 32); /* Pixel Depth */
cur += sprintf(cur, "%c", 40); /* Image Descriptor */

/* Image ID: no ID */
/* Color Map Data: no colormap */

/* Image Data */
cucul_render_canvas(qq, f, cur, w, h, 4 * w);

/* Swap bytes. What a waste of time. */
for(i = 0; i < w * h * 4; i += 4)
{
char w;
w = cur[i]; cur[i] = cur[i + 3]; cur[i + 3] = w;
w = cur[i + 1]; cur[i + 1] = cur[i + 2]; cur[i + 2] = w;
}

cucul_free_font(f);
}


+ 0
- 190
cucul/export_html.c View File

@@ -1,190 +0,0 @@
/*
* libcucul Canvas for ultrafast compositing of Unicode letters
* Copyright (c) 2002-2006 Sam Hocevar <sam@zoy.org>
* 2006 Jean-Yves Lamoureux <jylam@lnxscene.org>
* All Rights Reserved
*
* $Id$
*
* This library 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.
*/

/*
* This file contains export functions for HTML and HTML3
*/

#include "config.h"

#if !defined(__KERNEL__)
# include <stdlib.h>
# include <stdio.h>
# include <string.h>
#endif

#include "cucul.h"
#include "cucul_internals.h"

/** \brief Generate HTML representation of current image.
*
* This function generates and returns the HTML representation of
* the current image.
*/
void _cucul_get_html(cucul_t *qq, cucul_buffer_t *ex)
{
static int const palette[] =
{
0x000, 0x008, 0x080, 0x088, 0x800, 0x808, 0x880, 0x888,
0x444, 0x44f, 0x4f4, 0x4ff, 0xf44, 0xf4f, 0xff4, 0xfff,
};
char *cur;
unsigned int x, y, len;

/* The CSS palette: roughly 13000 bytes
* A line: 7 chars for "<br />\n"
* A glyph: 18 chars for "<span class='bxx'>"
* up to 9 chars for "&#xxxxxx;", far less for pure ASCII
* 7 chars for "</span>" */
ex->size = 13000 + qq->height * (7 + qq->width * (18 + 9 + 7));
ex->data = malloc(ex->size);

cur = ex->data;

/* HTML header */
cur += sprintf(cur, "<html>\n<head>\n<title>Generated by libcaca %s</title>\n", VERSION);

/* CSS */
cur += sprintf(cur, "<style>\n");
cur += sprintf(cur, ".caca { font-family: monospace, fixed; font-weight: bold; }");
for(x = 0; x < 0x100; x++)
{
cur += sprintf(cur, ".b%02x { color:#%03x; background-color:#%03x; }\n",
x, palette[x & 0xf ], palette[x >> 4]);
}
cur += sprintf(cur, "</style>\n</head>\n<body>\n");

cur += sprintf(cur, "<div cellpadding='0' cellspacing='0' style='%s'>\n",
"font-family: monospace, fixed; font-weight: bold;");

for(y = 0; y < qq->height; y++)
{
uint32_t *lineattr = qq->attr + y * qq->width;
uint32_t *linechar = qq->chars + y * qq->width;

for(x = 0; x < qq->width; x += len)
{
cur += sprintf(cur, "<span class='b%02x'>",
_cucul_argb32_to_ansi8(lineattr[x]));

for(len = 0;
x + len < qq->width && lineattr[x + len] == lineattr[x];
len++)
{
if(linechar[x + len] <= 0x00000020)
cur += sprintf(cur, "&nbsp;");
else if(linechar[x + len] < 0x00000080)
cur += sprintf(cur, "%c", linechar[x + len]);
else
cur += sprintf(cur, "&#%i;", linechar[x + len]);
}
cur += sprintf(cur, "</span>");
}
/* New line */
cur += sprintf(cur, "<br />\n");
}

cur += sprintf(cur, "</div></body></html>\n");

/* Crop to really used size */
ex->size = strlen(ex->data) + 1;
ex->data = realloc(ex->data, ex->size);
}


/** \brief Generate HTML3 representation of current image.
*
* This function generates and returns the HTML3 representation of
* the current image. It is way bigger than cucul_get_html(), but
* permits viewing in old browsers (or limited ones such as links)
* Won't work under gecko (mozilla rendering engine) unless you set
* a correct header.
*/
void _cucul_get_html3(cucul_t *qq, cucul_buffer_t *ex)
{
static int const palette[] =
{
0x000000, 0x000088, 0x008800, 0x008888,
0x880000, 0x880088, 0x888800, 0x888888,
0x444444, 0x4444ff, 0x44ff44, 0x44ffff,
0xff4444, 0xff44ff, 0xffff44, 0xffffff,
};

char *cur;
unsigned int x, y, len;

/* The CSS palette: roughly 13000 bytes
* A line: 10 chars for "<tr></tr>\n"
* A glyph: 40 chars for "<td bgcolor=#xxxxxx><font color=#xxxxxx>"
* up to 9 chars for "&#xxxxxx;", far less for pure ASCII
* 12 chars for "</font></td>" */
ex->size = 13000 + qq->height * (10 + qq->width * (40 + 9 + 12));
ex->data = malloc(ex->size);

cur = ex->data;

/* Table */
cur += sprintf(cur, "<table cols='%d' cellpadding='0' cellspacing='0'>\n",
qq->height);

for(y = 0; y < qq->height; y++)
{
uint32_t *lineattr = qq->attr + y * qq->width;
uint32_t *linechar = qq->chars + y * qq->width;

cur += sprintf(cur, "<tr>");

for(x = 0; x < qq->width; x += len)
{
unsigned int i;

/* Use colspan option to factorize cells with same attributes
* (see below) */
len = 1;
while(x + len < qq->width && lineattr[x + len] == lineattr[x])
len++;

cur += sprintf(cur, "<td bgcolor=#%06x",
palette[_cucul_argb32_to_ansi4bg(lineattr[x])]);

if(len > 1)
cur += sprintf(cur, " colspan=%d", len);

cur += sprintf(cur, "><font color=#%06x>",
palette[_cucul_argb32_to_ansi4fg(lineattr[x])]);

for(i = 0; i < len; i++)
{
if(linechar[x + i] <= 0x00000020)
cur += sprintf(cur, "&nbsp;");
else if(linechar[x + i] < 0x00000080)
cur += sprintf(cur, "%c", linechar[x + i]);
else
cur += sprintf(cur, "&#%i;", linechar[x + i]);
}

cur += sprintf(cur, "</font></td>");
}
cur += sprintf(cur, "</tr>\n");
}

/* Footer */
cur += sprintf(cur, "</table>\n");

/* Crop to really used size */
ex->size = (uintptr_t)(cur - ex->data);
ex->data = realloc(ex->data, ex->size);
}



+ 0
- 107
cucul/export_irc.c View File

@@ -1,107 +0,0 @@
/*
* libcucul Canvas for ultrafast compositing of Unicode letters
* Copyright (c) 2002-2006 Sam Hocevar <sam@zoy.org>
* 2006 Jean-Yves Lamoureux <jylam@lnxscene.org>
* All Rights Reserved
*
* $Id$
*
* This library 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.
*/

/*
* This file contains export functions for IRC
*/

#include "config.h"

#if !defined(__KERNEL__)
# include <stdlib.h>
# include <stdio.h>
# include <string.h>
#endif

#include "cucul.h"
#include "cucul_internals.h"

/** \brief Generate IRC representation of current image.
*
* This function generates and returns an IRC representation of
* the current image.
*/
void _cucul_get_irc(cucul_t *qq, cucul_buffer_t *ex)
{
static int const palette[] =
{
1, 2, 3, 10, 5, 6, 7, 15, /* Dark */
14, 12, 9, 11, 4, 13, 8, 0, /* Light */
};

char *cur;
unsigned int x, y;

/* 11 bytes assumed for max length per pixel. Worst case scenario:
* ^Cxx,yy 6 bytes
* ^B^B 2 bytes
* c 1 byte
* \r\n 2 bytes
* In real life, the average bytes per pixel value will be around 5.
*/

ex->size = 2 + (qq->width * qq->height * 11);
ex->data = malloc(ex->size);

cur = ex->data;

for(y = 0; y < qq->height; y++)
{
uint32_t *lineattr = qq->attr + y * qq->width;
uint32_t *linechar = qq->chars + y * qq->width;

uint8_t prevfg = -1;
uint8_t prevbg = -1;

for(x = 0; x < qq->width; x++)
{
uint8_t fg = palette[_cucul_argb32_to_ansi4fg(lineattr[x])];
uint8_t bg = palette[_cucul_argb32_to_ansi4bg(lineattr[x])];
uint32_t c = linechar[x];

if(bg == prevbg)
{
if(fg == prevfg)
; /* Same fg/bg, do nothing */
else if(c == (uint32_t)' ')
fg = prevfg; /* Hackety hack */
else
{
cur += sprintf(cur, "\x03%d", fg);
if(c >= (uint32_t)'0' && c <= (uint32_t)'9')
cur += sprintf(cur, "\x02\x02");
}
}
else
{
if(fg == prevfg)
cur += sprintf(cur, "\x03,%d", bg);
else
cur += sprintf(cur, "\x03%d,%d", fg, bg);

if(c >= (uint32_t)'0' && c <= (uint32_t)'9')
cur += sprintf(cur, "\x02\x02");
}
*cur++ = c & 0x7f;
prevfg = fg;
prevbg = bg;
}
*cur++ = '\r';
*cur++ = '\n';
}

/* Crop to really used size */
ex->size = (uintptr_t)(cur - ex->data);
ex->data = realloc(ex->data, ex->size);
}

+ 0
- 138
cucul/export_ps.c View File

@@ -1,138 +0,0 @@
/*
* libcucul Canvas for ultrafast compositing of Unicode letters
* Copyright (c) 2002-2006 Sam Hocevar <sam@zoy.org>
* 2006 Jean-Yves Lamoureux <jylam@lnxscene.org>
* All Rights Reserved
*
* $Id$
*
* This library 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.
*/

/*
* This file contains export functions for Postscript files
*/

#include "config.h"

#if !defined(__KERNEL__)
# include <stdlib.h>
# include <stdio.h>
# include <string.h>
#endif

#include "cucul.h"
#include "cucul_internals.h"

static char const *ps_header =
"%!\n"
"%% libcaca PDF export\n"
"%%LanguageLevel: 2\n"
"%%Pages: 1\n"
"%%DocumentData: Clean7Bit\n"
"/csquare {\n"
" newpath\n"
" 0 0 moveto\n"
" 0 1 rlineto\n"
" 1 0 rlineto\n"
" 0 -1 rlineto\n"
" closepath\n"
" setrgbcolor\n"
" fill\n"
"} def\n"
"/S {\n"
" Show\n"
"} bind def\n"
"/Courier-Bold findfont\n"
"8 scalefont\n"
"setfont\n"
"gsave\n"
"6 10 scale\n";

/** \brief Generate Postscript representation of current image.
*
* This function generates and returns a Postscript representation of
* the current image.
*/
void _cucul_get_ps(cucul_t *qq, cucul_buffer_t *ex)
{
char *cur;
unsigned int x, y;

/* 200 is arbitrary but should be ok */
ex->size = strlen(ps_header) + (qq->width * qq->height * 200);
ex->data = malloc(ex->size);

cur = ex->data;

/* Header */
cur += sprintf(cur, "%s", ps_header);

/* Background, drawn using csquare macro defined in header */
for(y = qq->height; y--; )
{
uint32_t *lineattr = qq->attr + y * qq->width;

for(x = 0; x < qq->width; x++)
{
uint8_t argb[8];
_cucul_argb32_to_argb4(*lineattr++, argb);
cur += sprintf(cur, "1 0 translate\n %f %f %f csquare\n",
(float)argb[1] * (1.0 / 0xf),
(float)argb[2] * (1.0 / 0xf),
(float)argb[3] * (1.0 / 0xf));
}

/* Return to beginning of the line, and jump to the next one */
cur += sprintf(cur, "-%d 1 translate\n", qq->width);
}

cur += sprintf(cur, "grestore\n"); /* Restore transformation matrix */

for(y = qq->height; y--; )
{
uint32_t *lineattr = qq->attr + (qq->height - y - 1) * qq->width;
uint32_t *linechar = qq->chars + (qq->height - y - 1) * qq->width;

for(x = 0; x < qq->width; x++)
{
uint8_t argb[8];
uint32_t c = *linechar++;

_cucul_argb32_to_argb4(*lineattr++, argb);

cur += sprintf(cur, "newpath\n");
cur += sprintf(cur, "%d %d moveto\n", (x + 1) * 6, y * 10 + 2);
cur += sprintf(cur, "%f %f %f setrgbcolor\n",
(float)argb[5] * (1.0 / 0xf),
(float)argb[6] * (1.0 / 0xf),
(float)argb[7] * (1.0 / 0xf));

if(c < 0x00000020)
cur += sprintf(cur, "(?) show\n");
else if(c >= 0x00000080)
cur += sprintf(cur, "(?) show\n");
else switch((uint8_t)(c & 0x7f))
{
case '\\':
case '(':
case ')':
cur += sprintf(cur, "(\\%c) show\n", c);
break;
default:
cur += sprintf(cur, "(%c) show\n", c);
break;
}
}
}

cur += sprintf(cur, "showpage\n");

/* Crop to really used size */
ex->size = (uintptr_t)(cur - ex->data);
ex->data = realloc(ex->data, ex->size);
}


+ 0
- 129
cucul/export_svg.c View File

@@ -1,129 +0,0 @@
/*
* libcucul Canvas for ultrafast compositing of Unicode letters
* Copyright (c) 2002-2006 Sam Hocevar <sam@zoy.org>
* 2006 Jean-Yves Lamoureux <jylam@lnxscene.org>
* All Rights Reserved
*
* $Id$
*
* This library 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.
*/

/*
* This file contains export functions for SVG (Scalable Vector Graphics files
*/

#include "config.h"

#if !defined(__KERNEL__)
# include <stdlib.h>
# include <stdio.h>
# include <string.h>
#endif

#include "cucul.h"
#include "cucul_internals.h"

static char const svg_header[] =
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
"<svg width=\"%d\" height=\"%d\" viewBox=\"0 0 %d %d\""
" xmlns=\"http://www.w3.org/2000/svg\""
" xmlns:xlink=\"http://www.w3.org/1999/xlink\""
" xml:space=\"preserve\" version=\"1.1\" baseProfile=\"full\">\n";

/*
* This function generates and returns an SVG representation of
* the current image.
*/
void _cucul_get_svg(cucul_t *qq, cucul_buffer_t *ex)
{
char *cur;
unsigned int x, y;

/* 200 is arbitrary but should be ok */
ex->size = strlen(svg_header) + (qq->width * qq->height * 200);
ex->data = malloc(ex->size);

cur = ex->data;

/* Header */
cur += sprintf(cur, svg_header, qq->width * 6, qq->height * 10,
qq->width * 6, qq->height * 10);

cur += sprintf(cur, " <g id=\"mainlayer\" font-size=\"12\">\n");

/* Background */
for(y = 0; y < qq->height; y++)
{
uint32_t *lineattr = qq->attr + y * qq->width;

for(x = 0; x < qq->width; x++)
{
cur += sprintf(cur, "<rect style=\"fill:#%.03x\" x=\"%d\" y=\"%d\""
" width=\"6\" height=\"10\"/>\n",
_cucul_argb32_to_rgb12bg(*lineattr++),
x * 6, y * 10);
}
}

/* Text */
for(y = 0; y < qq->height; y++)
{
uint32_t *lineattr = qq->attr + y * qq->width;
uint32_t *linechar = qq->chars + y * qq->width;

for(x = 0; x < qq->width; x++)
{
uint32_t c = *linechar++;

cur += sprintf(cur, "<text style=\"fill:#%.03x\" "
"x=\"%d\" y=\"%d\">",
_cucul_argb32_to_rgb12fg(*lineattr++),
x * 6, (y * 10) + 10);
if(c < 0x00000020)
cur += sprintf(cur, "?");
else if(c > 0x0000007f)
{
static const uint8_t mark[7] =
{
0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC
};

char buf[10], *parser;
int bytes = (c < 0x800) ? 2 : (c < 0x10000) ? 3 : 4;

buf[bytes] = '\0';
parser = buf + bytes;

switch(bytes)
{
case 4: *--parser = (c | 0x80) & 0xbf; c >>= 6;
case 3: *--parser = (c | 0x80) & 0xbf; c >>= 6;
case 2: *--parser = (c | 0x80) & 0xbf; c >>= 6;
}
*--parser = c | mark[bytes];

cur += sprintf(cur, "%s", buf);
}
else switch((uint8_t)c)
{
case '>': cur += sprintf(cur, "&gt;"); break;
case '<': cur += sprintf(cur, "&lt;"); break;
case '&': cur += sprintf(cur, "&amp;"); break;
default: cur += sprintf(cur, "%c", c); break;
}
cur += sprintf(cur, "</text>\n");
}
}

cur += sprintf(cur, " </g>\n");
cur += sprintf(cur, "</svg>\n");

/* Crop to really used size */
ex->size = (uintptr_t)(cur - ex->data);
ex->data = realloc(ex->data, ex->size);
}


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