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/* Libart_LGPL - library of basic graphic primitives
* Copyright (C) 1998 Raph Levien
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "art_config.h"
#include "art_misc.h"
#include "art_uta.h"
#include "art_vpath.h"
#include "art_uta_vpath.h"
#include "art_rect.h"
#include "art_rect_uta.h"
#include "art_uta_rect.h"
#undef LIBART_COMPILATION
#include "libart-features.h"
#define TEST_UTA
#define noTEST_UTA_SPEED
#define XOFF 50
#define YOFF 700
static void
print_uta_ps (ArtUta *uta)
{
int x, y;
int x0, y0, x1, y1;
int width = uta->width;
ArtUtaBbox ub;
for (y = 0; y < uta->height; y++)
for (x = 0; x < width; x++)
{
ub = uta->utiles[y * width + x];
if (ub != 0)
{
x0 = (uta->x0 + x) * ART_UTILE_SIZE + ART_UTA_BBOX_X0(ub);
x1 = (uta->x0 + x) * ART_UTILE_SIZE + ART_UTA_BBOX_X1(ub);
y0 = (uta->y0 + y) * ART_UTILE_SIZE + ART_UTA_BBOX_Y0(ub);
y1 = (uta->y0 + y) * ART_UTILE_SIZE + ART_UTA_BBOX_Y1(ub);
printf ("%% tile %d, %d: %d %d %d %d\n",
x, y,
ART_UTA_BBOX_X0(ub),
ART_UTA_BBOX_Y0(ub),
ART_UTA_BBOX_X1(ub),
ART_UTA_BBOX_Y1(ub));
printf ("%d %d moveto %d %d lineto %d %d lineto %d %d lineto closepath fill\n",
XOFF + x0, YOFF - y0, XOFF + x1, YOFF - y0,
XOFF + x1, YOFF - y1, XOFF + x0, YOFF - y1);
}
}
}
static void
print_rbuf_ps (int *rbuf, int width, int height)
{
int x, y;
for (y = 0; y < height; y++)
for (x = 0; x < width; x++)
if (1 && rbuf[y * width + x] != 0)
printf ("%d %d moveto (%d) show\n", x * ART_UTILE_SIZE, y * ART_UTILE_SIZE,
rbuf[y * width + x]);
}
#if 0
void
randline (ArtUta *uta, int *rbuf, int rbuf_rowstride)
{
double x0, y0, x1, y1;
x0 = rand () * (500.0 / RAND_MAX);
y0 = rand () * (500.0 / RAND_MAX);
x1 = rand () * (500.0 / RAND_MAX);
y1 = rand () * (500.0 / RAND_MAX);
printf ("%g %g moveto %g %g lineto stroke\n", x0, y0, x1, y1);
art_uta_add_line (uta, x0, y0, x1, y1, rbuf, rbuf_rowstride);
}
#endif
static void
print_ps_vpath (ArtVpath *vpath)
{
int i;
for (i = 0; vpath[i].code != ART_END; i++)
{
switch (vpath[i].code)
{
case ART_MOVETO:
printf ("%g %g moveto\n", XOFF + vpath[i].x, YOFF - vpath[i].y);
break;
case ART_LINETO:
printf ("%g %g lineto\n", XOFF + vpath[i].x, YOFF - vpath[i].y);
break;
default:
break;
}
}
printf ("stroke\n");
}
static ArtVpath *
randstar (int n)
{
ArtVpath *vec;
int i;
double r, th;
vec = art_new (ArtVpath, n + 2);
for (i = 0; i < n; i++)
{
vec[i].code = i ? ART_LINETO : ART_MOVETO;
r = rand () * (250.0 / RAND_MAX);
th = i * 2 * M_PI / n;
vec[i].x = 250 + r * cos (th);
vec[i].y = 250 - r * sin (th);
}
vec[i].code = ART_LINETO;
vec[i].x = vec[0].x;
vec[i].y = vec[0].y;
i++;
vec[i].code = ART_END;
vec[i].x = 0;
vec[i].y = 0;
return vec;
}
int
main (int argc, char **argv)
{
ArtUta *uta;
int i;
int *rbuf;
ArtVpath *vec;
ArtIRect *rects;
int n_rects;
if (argc == 2)
srand (atoi (argv[1]));
#ifdef TEST_UTA
printf ("%%!PS-Adobe\n");
printf ("%% libart version: %d.%d.%d\n",
libart_major_version, libart_minor_version, libart_micro_version);
printf ("/Helvetica findfont 12 scalefont setfont\n");
printf ("0.5 setlinewidth\n");
printf ("0.5 setgray\n");
for (i = 0; i < 500; i += ART_UTILE_SIZE)
{
printf ("%d %d moveto %d %d lineto stroke\n",
XOFF, YOFF - i, XOFF + 500, YOFF - i);
printf ("%d %d moveto %d %d lineto stroke\n",
XOFF + i, YOFF, XOFF + i, YOFF - 500);
}
printf ("/a {\n");
#if 1
vec = randstar (50);
print_ps_vpath (vec);
uta = art_uta_from_vpath (vec);
#ifdef TEST_UTA_RECT
{
ArtIRect bbox = {5, 5, 450, 450};
uta = art_uta_from_irect (&bbox);
}
#endif
rbuf = NULL;
#else
uta = art_uta_new_coords (0, 0, 500, 500);
rbuf = malloc (sizeof(int) * (500 >> ART_UTILE_SHIFT) * (500 >> ART_UTILE_SHIFT));
for (i = 0; i < 10; i++)
randline (uta, rbuf, 500 >> ART_UTILE_SHIFT);
#endif
printf ("} def 1 0.5 0.5 setrgbcolor\n");
print_uta_ps (uta);
printf ("0 0 0.5 setrgbcolor\n");
if (rbuf)
print_rbuf_ps (rbuf, 500 >> ART_UTILE_SHIFT, 500 >> ART_UTILE_SHIFT);
printf ("0 setgray a\n");
rects = art_rect_list_from_uta (uta, 256, 64, &n_rects);
printf ("%% %d rectangles:\n0 0 1 setrgbcolor\n", n_rects);
for (i = 0; i < n_rects; i++)
printf ("%d %d moveto %d %d lineto %d %d lineto %d %d lineto closepath stroke\n",
XOFF + rects[i].x0, YOFF - rects[i].y0,
XOFF + rects[i].x1, YOFF - rects[i].y0,
XOFF + rects[i].x1, YOFF - rects[i].y1,
XOFF + rects[i].x0, YOFF - rects[i].y1);
printf ("showpage\n");
#endif
#ifdef TEST_UTA_SPEED
for (i = 0; i < 1000; i++)
{
vec = randstar (50);
uta = art_uta_from_vpath (vec);
art_free (vec);
art_uta_free (uta);
}
#endif
return 0;
}
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