[18255] | 1 | /* Libart_LGPL - library of basic graphic primitives |
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| 2 | * Copyright (C) 1998, 1999 Raph Levien |
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| 3 | * |
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| 4 | * This library is free software; you can redistribute it and/or |
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| 5 | * modify it under the terms of the GNU Library General Public |
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| 6 | * License as published by the Free Software Foundation; either |
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| 7 | * version 2 of the License, or (at your option) any later version. |
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| 8 | * |
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| 9 | * This library is distributed in the hope that it will be useful, |
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| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | * Library General Public License for more details. |
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| 13 | * |
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| 14 | * You should have received a copy of the GNU Library General Public |
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| 15 | * License along with this library; if not, write to the |
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| 16 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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| 17 | * Boston, MA 02111-1307, USA. |
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| 18 | */ |
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| 19 | |
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| 20 | #include <stdio.h> |
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| 21 | #include <string.h> |
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| 22 | #include <math.h> |
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| 23 | #include "art_misc.h" |
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| 24 | #include "art_vpath.h" |
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| 25 | #include "art_svp.h" |
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| 26 | #include "art_svp_vpath.h" |
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| 27 | #include "art_gray_svp.h" |
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| 28 | #include "art_rgb_svp.h" |
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| 29 | #include "art_svp_vpath_stroke.h" |
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| 30 | #include "art_svp_ops.h" |
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| 31 | #include "art_affine.h" |
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| 32 | #include "art_rgb_affine.h" |
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| 33 | #include "art_rgb_bitmap_affine.h" |
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| 34 | #include "art_rgb_rgba_affine.h" |
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| 35 | #include "art_alphagamma.h" |
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| 36 | #include "art_svp_point.h" |
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| 37 | #include "art_vpath_dash.h" |
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| 38 | #include "art_render.h" |
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| 39 | #include "art_render_gradient.h" |
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| 40 | #include "art_render_svp.h" |
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| 41 | #include "art_svp_intersect.h" |
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| 42 | |
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| 43 | #ifdef DEAD_CODE |
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| 44 | static void |
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| 45 | test_affine (void) { |
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| 46 | double src[6]; |
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| 47 | double dst[6]; |
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| 48 | double src2[6]; |
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| 49 | char str[128]; |
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| 50 | int i; |
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| 51 | ArtPoint ps, pd, ptmp; |
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| 52 | |
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| 53 | for (i = 0; i < 6; i++) |
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| 54 | { |
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| 55 | src[i] = (rand () * 2.0 / RAND_MAX) - 1.0; |
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| 56 | src2[i] = (rand () * 2.0 / RAND_MAX) - 1.0; |
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| 57 | } |
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| 58 | #if 0 |
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| 59 | src[0] = 0.9999999; |
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| 60 | src[1] = -0.000001; |
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| 61 | src[2] = 0.000001; |
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| 62 | src[3] = 0.9999999; |
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| 63 | src[4] = 0; |
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| 64 | src[5] = 0; |
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| 65 | #if 1 |
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| 66 | src[0] = 0.98480775; |
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| 67 | src[1] = -0.17364818; |
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| 68 | src[2] = 0.17364818; |
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| 69 | src[3] = 0.98480775; |
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| 70 | #endif |
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| 71 | |
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| 72 | src2[0] = 0.98480775; |
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| 73 | src2[1] = -0.17364818; |
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| 74 | src2[2] = 0.17364818; |
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| 75 | src2[3] = 0.98480775; |
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| 76 | #endif |
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| 77 | |
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| 78 | |
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| 79 | ps.x = rand() * 100.0 / RAND_MAX; |
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| 80 | ps.y = rand() * 100.0 / RAND_MAX; |
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| 81 | |
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| 82 | art_affine_point (&pd, &ps, src); |
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| 83 | art_affine_invert (dst, src); |
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| 84 | art_affine_point (&ptmp, &pd, dst); |
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| 85 | art_affine_to_string (str, src); |
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| 86 | printf ("src = %s\n", str); |
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| 87 | art_affine_to_string (str, dst); |
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| 88 | printf ("dst = %s\n", str); |
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| 89 | printf ("point (%g, %g) -> (%g, %g) -> (%g, %g)\n", |
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| 90 | ps.x, ps.y, pd.x, pd.y, ptmp.x, ptmp.y); |
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| 91 | |
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| 92 | art_affine_point (&ptmp, &ps, src); |
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| 93 | art_affine_point (&pd, &ptmp, src2); |
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| 94 | art_affine_to_string (str, src2); |
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| 95 | printf ("src2 = %s\n", str); |
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| 96 | printf ("point (%g, %g) -> (%g, %g) -> (%g, %g)\n", |
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| 97 | ps.x, ps.y, ptmp.x, ptmp.y, pd.x, pd.y); |
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| 98 | art_affine_multiply (dst, src, src2); |
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| 99 | art_affine_to_string (str, dst); |
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| 100 | printf ("dst = %s\n", str); |
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| 101 | art_affine_point (&pd, &ps, dst); |
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| 102 | printf ("point (%g, %g) -> (%g, %g)\n", |
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| 103 | ps.x, ps.y, pd.x, pd.y); |
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| 104 | |
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| 105 | } |
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| 106 | #endif |
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| 107 | |
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| 108 | static ArtVpath * |
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| 109 | randstar (int n) |
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| 110 | { |
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| 111 | ArtVpath *vec; |
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| 112 | int i; |
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| 113 | double r, th; |
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| 114 | |
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| 115 | vec = art_new (ArtVpath, n + 2); |
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| 116 | for (i = 0; i < n; i++) |
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| 117 | { |
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| 118 | vec[i].code = i ? ART_LINETO : ART_MOVETO; |
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| 119 | r = rand () * (250.0 / RAND_MAX); |
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| 120 | #if 0 |
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| 121 | r = r + 0.9 * (250 - r); |
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| 122 | #endif |
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| 123 | th = i * 2 * M_PI / n; |
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| 124 | vec[i].x = 250 + r * cos (th); |
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| 125 | vec[i].y = 250 - r * sin (th); |
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| 126 | } |
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| 127 | vec[i].code = ART_LINETO; |
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| 128 | vec[i].x = vec[0].x; |
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| 129 | vec[i].y = vec[0].y; |
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| 130 | i++; |
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| 131 | vec[i].code = ART_END; |
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| 132 | vec[i].x = 0; |
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| 133 | vec[i].y = 0; |
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| 134 | return vec; |
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| 135 | } |
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| 136 | |
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| 137 | #define TILE_SIZE 512 |
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| 138 | #define NUM_ITERS 1 |
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| 139 | #define COLOR |
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| 140 | |
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| 141 | #ifdef COLOR |
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| 142 | #define BYTES_PP 3 |
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| 143 | #else |
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| 144 | #define BYTES_PP 1 |
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| 145 | #endif |
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| 146 | |
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| 147 | #ifndef nDEAD_CODE |
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| 148 | static void |
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| 149 | print_svp (ArtSVP *vp) |
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| 150 | { |
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| 151 | int i, j; |
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| 152 | |
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| 153 | for (i = 0; i < vp->n_segs; i++) |
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| 154 | { |
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| 155 | printf ("segment %d, dir = %s (%f, %f) - (%f, %f)\n", |
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| 156 | i, vp->segs[i].dir ? "down" : "up", |
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| 157 | vp->segs[i].bbox.x0, |
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| 158 | vp->segs[i].bbox.y0, |
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| 159 | vp->segs[i].bbox.x1, |
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| 160 | vp->segs[i].bbox.y1); |
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| 161 | for (j = 0; j < vp->segs[i].n_points; j++) |
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| 162 | printf (" (%g, %g)\n", |
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| 163 | vp->segs[i].points[j].x, |
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| 164 | vp->segs[i].points[j].y); |
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| 165 | } |
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| 166 | } |
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| 167 | #endif |
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| 168 | |
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| 169 | static void |
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| 170 | print_vpath (ArtVpath *vpath) |
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| 171 | { |
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| 172 | int i; |
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| 173 | |
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| 174 | for (i = 0; vpath[i].code != ART_END; i++) |
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| 175 | printf ("%g %g %s\n", |
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| 176 | vpath[i].x, vpath[i].y, |
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| 177 | vpath[i].code == ART_MOVETO_OPEN ? "moveto %open" : |
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| 178 | vpath[i].code == ART_MOVETO ? "moveto" : |
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| 179 | vpath[i].code == ART_LINETO ? "lineto" : |
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| 180 | "?"); |
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| 181 | |
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| 182 | printf ("stroke\n"); |
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| 183 | } |
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| 184 | |
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| 185 | static void |
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| 186 | make_testpat (void) |
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| 187 | { |
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| 188 | ArtVpath *vpath, *vpath2, *vpath3; |
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| 189 | ArtSVP *svp, *svp2; |
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| 190 | ArtSVP *svp3; |
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| 191 | art_u8 buf[512 * 512 * BYTES_PP]; |
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| 192 | int i, j; |
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| 193 | int iter; |
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| 194 | art_u8 colorimg[256][256][3]; |
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| 195 | art_u8 rgbaimg[256][256][4]; |
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| 196 | art_u8 bitimg[16][2]; |
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| 197 | int x, y; |
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| 198 | double affine[6]; |
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| 199 | double affine2[6]; |
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| 200 | double affine3[6]; |
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| 201 | ArtAlphaGamma *alphagamma; |
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| 202 | double dash_data[] = { 20 }; |
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| 203 | ArtVpathDash dash; |
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| 204 | |
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| 205 | dash.offset = 0; |
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| 206 | dash.n_dash = 1; |
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| 207 | dash.dash = dash_data; |
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| 208 | |
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| 209 | #ifdef TEST_AFFINE |
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| 210 | test_affine (); |
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| 211 | exit (0); |
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| 212 | #endif |
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| 213 | |
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| 214 | vpath = randstar (50); |
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| 215 | svp = art_svp_from_vpath (vpath); |
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| 216 | art_free (vpath); |
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| 217 | |
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| 218 | vpath2 = randstar (50); |
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| 219 | #if 1 |
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| 220 | vpath3 = art_vpath_dash (vpath2, &dash); |
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| 221 | art_free (vpath2); |
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| 222 | svp2 = art_svp_vpath_stroke (vpath3, |
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| 223 | ART_PATH_STROKE_JOIN_MITER, |
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| 224 | ART_PATH_STROKE_CAP_BUTT, |
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| 225 | 15, |
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| 226 | 4, |
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| 227 | 0.5); |
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| 228 | art_free (vpath3); |
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| 229 | #else |
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| 230 | svp2 = art_svp_from_vpath (vpath2); |
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| 231 | #endif |
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| 232 | |
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| 233 | #if 1 |
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| 234 | svp3 = art_svp_intersect (svp, svp2); |
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| 235 | #else |
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| 236 | svp3 = svp2; |
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| 237 | #endif |
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| 238 | |
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| 239 | #if 0 |
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| 240 | print_svp (svp); |
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| 241 | #endif |
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| 242 | |
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| 243 | for (y = 0; y < 256; y++) |
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| 244 | for (x = 0; x < 256; x++) |
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| 245 | { |
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| 246 | colorimg[y][x][0] = (x + y) >> 1; |
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| 247 | colorimg[y][x][1] = (x + (255 - y)) >> 1; |
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| 248 | colorimg[y][x][2] = ((255 - x) + y) >> 1; |
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| 249 | |
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| 250 | rgbaimg[y][x][0] = (x + y) >> 1; |
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| 251 | rgbaimg[y][x][1] = (x + (255 - y)) >> 1; |
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| 252 | rgbaimg[y][x][2] = ((255 - x) + y) >> 1; |
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| 253 | rgbaimg[y][x][3] = y; |
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| 254 | } |
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| 255 | |
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| 256 | for (y = 0; y < 16; y++) |
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| 257 | for (x = 0; x < 2; x++) |
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| 258 | bitimg[y][x] = (x << 4) | y; |
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| 259 | |
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| 260 | affine[0] = 0.5; |
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| 261 | affine[1] = .2; |
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| 262 | affine[2] = -.2; |
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| 263 | affine[3] = 0.5; |
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| 264 | affine[4] = 64; |
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| 265 | affine[5] = 64; |
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| 266 | |
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| 267 | affine2[0] = 1; |
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| 268 | affine2[1] = -.2; |
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| 269 | affine2[2] = .2; |
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| 270 | affine2[3] = 1; |
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| 271 | affine2[4] = 128; |
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| 272 | affine2[5] = 128; |
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| 273 | |
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| 274 | affine3[0] = 5; |
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| 275 | affine3[1] = -.2; |
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| 276 | affine3[2] = .2; |
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| 277 | affine3[3] = 5; |
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| 278 | affine3[4] = 384; |
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| 279 | affine3[5] = 32; |
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| 280 | |
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| 281 | #if 0 |
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| 282 | alphagamma = art_alphagamma_new (1.8); |
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| 283 | #else |
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| 284 | alphagamma = NULL; |
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| 285 | #endif |
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| 286 | |
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| 287 | #ifdef COLOR |
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| 288 | printf ("P6\n512 512\n255\n"); |
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| 289 | #else |
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| 290 | printf ("P5\n512 512\n255\n"); |
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| 291 | #endif |
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| 292 | for (iter = 0; iter < NUM_ITERS; iter++) |
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| 293 | for (j = 0; j < 512; j += TILE_SIZE) |
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| 294 | for (i = 0; i < 512; i += TILE_SIZE) |
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| 295 | { |
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| 296 | #ifdef COLOR |
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| 297 | art_rgb_svp_aa (svp, i, j, i + TILE_SIZE, j + TILE_SIZE, |
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| 298 | 0xffe0a0, 0x100040, |
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| 299 | buf + (j * 512 + i) * BYTES_PP, 512 * BYTES_PP, |
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| 300 | alphagamma); |
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| 301 | art_rgb_svp_alpha (svp2, i, j, i + TILE_SIZE, j + TILE_SIZE, |
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| 302 | 0xff000080, |
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| 303 | buf + (j * 512 + i) * BYTES_PP, 512 * BYTES_PP, |
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| 304 | alphagamma); |
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| 305 | art_rgb_svp_alpha (svp3, i, j, i + TILE_SIZE, j + TILE_SIZE, |
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| 306 | 0x00ff0080, |
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| 307 | buf + (j * 512 + i) * BYTES_PP, 512 * BYTES_PP, |
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| 308 | alphagamma); |
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| 309 | art_rgb_affine (buf + (j * 512 + i) * BYTES_PP, |
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| 310 | i, j, i + TILE_SIZE, j + TILE_SIZE, 512 * BYTES_PP, |
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| 311 | (art_u8 *)colorimg, 256, 256, 256 * 3, |
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| 312 | affine, |
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| 313 | ART_FILTER_NEAREST, alphagamma); |
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| 314 | art_rgb_rgba_affine (buf + (j * 512 + i) * BYTES_PP, |
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| 315 | i, j, i + TILE_SIZE, j + TILE_SIZE, |
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| 316 | 512 * BYTES_PP, |
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| 317 | (art_u8 *)rgbaimg, 256, 256, 256 * 4, |
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| 318 | affine2, |
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| 319 | ART_FILTER_NEAREST, alphagamma); |
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| 320 | art_rgb_bitmap_affine (buf + (j * 512 + i) * BYTES_PP, |
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| 321 | i, j, i + TILE_SIZE, j + TILE_SIZE, |
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| 322 | 512 * BYTES_PP, |
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| 323 | (art_u8 *)bitimg, 16, 16, 2, |
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| 324 | 0xffff00ff, |
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| 325 | affine3, |
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| 326 | ART_FILTER_NEAREST, alphagamma); |
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| 327 | #else |
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| 328 | art_gray_svp_aa (svp, i, j, i + TILE_SIZE, j + TILE_SIZE, |
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| 329 | buf + (j * 512 + i) * BYTES_PP, 512 * BYTES_PP); |
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| 330 | #endif |
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| 331 | } |
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| 332 | |
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| 333 | art_svp_free (svp2); |
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| 334 | art_svp_free (svp3); |
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| 335 | art_svp_free (svp); |
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| 336 | |
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| 337 | #if 1 |
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| 338 | fwrite (buf, 1, 512 * 512 * BYTES_PP, stdout); |
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| 339 | #endif |
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| 340 | } |
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| 341 | |
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| 342 | static void |
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| 343 | test_dist (void) |
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| 344 | { |
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| 345 | ArtVpath *vpath; |
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| 346 | ArtSVP *svp; |
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| 347 | art_u8 buf[512 * 512 * BYTES_PP]; |
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| 348 | int x, y; |
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| 349 | int ix; |
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| 350 | double dist; |
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| 351 | int wind; |
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| 352 | |
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| 353 | vpath = randstar (20); |
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| 354 | #ifdef NO_STROKE |
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| 355 | svp = art_svp_from_vpath (vpath); |
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| 356 | #else |
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| 357 | svp = art_svp_vpath_stroke (vpath, |
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| 358 | ART_PATH_STROKE_JOIN_MITER, |
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| 359 | ART_PATH_STROKE_CAP_BUTT, |
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| 360 | 15, |
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| 361 | 4, |
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| 362 | 0.5); |
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| 363 | #endif |
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| 364 | |
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| 365 | art_rgb_svp_aa (svp, 0, 0, 512, 512, |
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| 366 | 0xffe0a0, 0x100040, |
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| 367 | buf, 512 * BYTES_PP, |
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| 368 | NULL); |
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| 369 | |
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| 370 | ix = 0; |
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| 371 | for (y = 0; y < 512; y++) |
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| 372 | { |
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| 373 | for (x = 0; x < 512; x++) |
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| 374 | { |
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| 375 | wind = art_svp_point_wind (svp, x, y); |
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| 376 | buf[ix] = 204 - wind * 51; |
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| 377 | dist = art_svp_point_dist (svp, x, y); |
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| 378 | if (((x | y) & 0x3f) == 0) |
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| 379 | { |
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| 380 | fprintf (stderr, "%d,%d: %f\n", x, y, dist); |
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| 381 | } |
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| 382 | buf[ix + 1] = 255 - dist; |
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| 383 | ix += 3; |
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| 384 | } |
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| 385 | } |
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| 386 | |
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| 387 | printf ("P6\n512 512\n255\n"); |
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| 388 | fwrite (buf, 1, 512 * 512 * BYTES_PP, stdout); |
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| 389 | |
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| 390 | } |
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| 391 | |
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| 392 | static void |
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| 393 | test_dash (void) |
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| 394 | { |
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| 395 | ArtVpath *vpath, *vpath2; |
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| 396 | double dash_data[] = { 10, 4, 1, 4}; |
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| 397 | ArtVpathDash dash; |
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| 398 | |
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| 399 | dash.offset = 0; |
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| 400 | dash.n_dash = 3; |
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| 401 | dash.dash = dash_data; |
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| 402 | |
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| 403 | vpath = randstar (50); |
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| 404 | vpath2 = art_vpath_dash (vpath, &dash); |
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| 405 | printf ("%%!\n"); |
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| 406 | print_vpath (vpath2); |
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| 407 | printf ("showpage\n"); |
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| 408 | art_free (vpath); |
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| 409 | art_free (vpath2); |
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| 410 | } |
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| 411 | |
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| 412 | static void |
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| 413 | test_render_gradient (art_u8 *buf) |
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| 414 | { |
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| 415 | ArtGradientLinear gradient; |
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| 416 | ArtGradientStop stops[3] = { |
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| 417 | { 0.0, { 0x7fff, 0x0000, 0x0000, 0x7fff }}, |
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| 418 | { 0.5, { 0x0000, 0x0000, 0x0000, 0x1000 }}, |
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| 419 | { 1.0, { 0x0000, 0x7fff, 0x0000, 0x7fff }} |
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| 420 | }; |
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| 421 | ArtVpath *vpath; |
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| 422 | ArtSVP *svp; |
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| 423 | ArtRender *render; |
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| 424 | |
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| 425 | gradient.a = 0.003; |
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| 426 | gradient.b = -0.0015; |
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| 427 | gradient.c = 0.1; |
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| 428 | gradient.spread = ART_GRADIENT_PAD; |
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| 429 | gradient.n_stops = sizeof(stops) / sizeof(stops[0]); |
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| 430 | gradient.stops = stops; |
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| 431 | |
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| 432 | vpath = randstar (50); |
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| 433 | svp = art_svp_from_vpath (vpath); |
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| 434 | |
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| 435 | render = art_render_new (0, 0, 512, 512, buf, 512 * 3, 3, 8, ART_ALPHA_NONE, |
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| 436 | NULL); |
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| 437 | art_render_svp (render, svp); |
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| 438 | art_render_gradient_linear (render, &gradient, ART_FILTER_NEAREST); |
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| 439 | art_render_invoke (render); |
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| 440 | |
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| 441 | } |
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| 442 | |
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| 443 | static void |
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| 444 | test_render_rad_gradient (art_u8 *buf) |
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| 445 | { |
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| 446 | ArtGradientRadial gradient; |
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| 447 | ArtGradientStop stops[3] = { |
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| 448 | { 0.0, { 0xffff, 0x0000, 0x0000, 0xffff }}, |
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| 449 | { 0.5, { 0xe000, 0xe000, 0x0000, 0xe000 }}, |
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| 450 | { 1.0, { 0x0000, 0x0000, 0x0000, 0x0000 }} |
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| 451 | }; |
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| 452 | ArtVpath *vpath; |
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| 453 | ArtSVP *svp; |
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| 454 | ArtRender *render; |
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| 455 | |
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| 456 | gradient.affine[0] = 3.0 / 512; |
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| 457 | gradient.affine[1] = 0; |
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| 458 | gradient.affine[2] = 0; |
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| 459 | gradient.affine[3] = 3.0 / 512; |
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| 460 | gradient.affine[4] = -1.5; |
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| 461 | gradient.affine[5] = -1.5; |
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| 462 | gradient.fx = 0.9; |
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| 463 | gradient.fy = 0.1; |
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| 464 | |
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| 465 | gradient.n_stops = sizeof(stops) / sizeof(stops[0]); |
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| 466 | gradient.stops = stops; |
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| 467 | |
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| 468 | vpath = randstar (50); |
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| 469 | svp = art_svp_from_vpath (vpath); |
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| 470 | |
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| 471 | render = art_render_new (0, 0, 512, 512, buf, 512 * 3, 3, 8, ART_ALPHA_NONE, |
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| 472 | NULL); |
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| 473 | art_render_svp (render, svp); |
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| 474 | art_render_gradient_radial (render, &gradient, ART_FILTER_NEAREST); |
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| 475 | art_render_invoke (render); |
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| 476 | |
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| 477 | } |
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| 478 | |
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| 479 | static void |
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| 480 | test_gradient (void) |
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| 481 | { |
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| 482 | ArtVpath *vpath; |
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| 483 | ArtSVP *svp; |
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| 484 | art_u8 buf[512 * 512 * 3]; |
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| 485 | ArtRender *render; |
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| 486 | ArtPixMaxDepth color[3] = {0x0000, 0x0000, 0x8000 }; |
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| 487 | int i; |
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| 488 | const int n_iter = 1; |
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| 489 | |
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| 490 | vpath = randstar (50); |
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| 491 | svp = art_svp_from_vpath (vpath); |
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| 492 | |
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| 493 | for (i = 0; i < n_iter; i++) |
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| 494 | { |
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| 495 | #define USE_RENDER |
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| 496 | #ifdef USE_RENDER |
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| 497 | render = art_render_new (0, 0, 512, 512, buf, 512 * 3, 3, 8, ART_ALPHA_NONE, |
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| 498 | NULL); |
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| 499 | art_render_clear_rgb (render, 0xfff0c0); |
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| 500 | art_render_svp (render, svp); |
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| 501 | art_render_image_solid (render, color); |
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| 502 | art_render_invoke (render); |
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| 503 | #else |
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| 504 | art_rgb_svp_aa (svp, 0, 0, 512, 512, 0xfff0c0, 0x000080, |
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| 505 | buf, 512 * 3, NULL); |
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| 506 | #endif |
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| 507 | } |
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| 508 | |
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| 509 | #if 1 |
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| 510 | test_render_gradient (buf); |
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| 511 | #endif |
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| 512 | test_render_rad_gradient (buf); |
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| 513 | |
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| 514 | printf ("P6\n512 512\n255\n"); |
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| 515 | fwrite (buf, 1, 512 * 512 * 3, stdout); |
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| 516 | } |
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| 517 | |
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| 518 | static void |
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| 519 | output_svp_ppm (const ArtSVP *svp) |
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| 520 | { |
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| 521 | art_u8 buf[512 * 512 * 3]; |
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| 522 | art_rgb_svp_aa (svp, 0, 0, 512, 512, 0xfff0c0, 0x000080, |
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| 523 | buf, 512 * 3, NULL); |
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| 524 | printf ("P6\n512 512\n255\n"); |
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| 525 | fwrite (buf, 1, 512 * 512 * 3, stdout); |
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| 526 | } |
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| 527 | |
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| 528 | static void |
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| 529 | test_intersect (void) |
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| 530 | { |
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| 531 | ArtVpath vpath[] = { |
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| 532 | |
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| 533 | #if 0 |
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| 534 | /* two triangles */ |
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| 535 | { ART_MOVETO, 100, 100 }, |
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| 536 | { ART_LINETO, 300, 400 }, |
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| 537 | { ART_LINETO, 400, 200 }, |
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| 538 | { ART_LINETO, 100, 100 }, |
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| 539 | { ART_MOVETO, 110, 110 }, |
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| 540 | { ART_LINETO, 310, 410 }, |
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| 541 | { ART_LINETO, 410, 210 }, |
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| 542 | { ART_LINETO, 110, 110 }, |
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| 543 | #endif |
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| 544 | |
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| 545 | #if 0 |
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| 546 | /* a bowtie */ |
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| 547 | { ART_MOVETO, 100, 100 }, |
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| 548 | { ART_LINETO, 400, 400 }, |
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| 549 | { ART_LINETO, 400, 100 }, |
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| 550 | { ART_LINETO, 100, 400 }, |
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| 551 | { ART_LINETO, 100, 100 }, |
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| 552 | #endif |
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| 553 | |
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| 554 | #if 1 |
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| 555 | /* a square */ |
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| 556 | { ART_MOVETO, 100, 100 }, |
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| 557 | { ART_LINETO, 100, 400 }, |
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| 558 | { ART_LINETO, 400, 400 }, |
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| 559 | { ART_LINETO, 400, 100 }, |
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| 560 | { ART_LINETO, 100, 100 }, |
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| 561 | #endif |
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| 562 | |
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| 563 | #if 1 |
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| 564 | /* another square */ |
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| 565 | #define XOFF 10 |
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| 566 | #define YOFF 10 |
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| 567 | { ART_MOVETO, 100 + XOFF, 100 + YOFF }, |
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| 568 | { ART_LINETO, 100 + XOFF, 400 + YOFF }, |
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| 569 | { ART_LINETO, 400 + XOFF, 400 + YOFF }, |
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| 570 | { ART_LINETO, 400 + XOFF, 100 + YOFF }, |
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| 571 | { ART_LINETO, 100 + XOFF, 100 + YOFF }, |
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| 572 | #endif |
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| 573 | |
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| 574 | { ART_END, 0, 0} |
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| 575 | }; |
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| 576 | ArtSVP *svp, *svp2; |
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| 577 | ArtSvpWriter *swr; |
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| 578 | |
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| 579 | svp = art_svp_from_vpath (vpath); |
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| 580 | |
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| 581 | #define RUN_INTERSECT |
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| 582 | #ifdef RUN_INTERSECT |
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| 583 | swr = art_svp_writer_rewind_new (ART_WIND_RULE_ODDEVEN); |
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| 584 | art_svp_intersector (svp, swr); |
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| 585 | |
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| 586 | svp2 = art_svp_writer_rewind_reap (swr); |
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| 587 | #endif |
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| 588 | |
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| 589 | #if 0 |
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| 590 | output_svp_ppm (svp2); |
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| 591 | #else |
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| 592 | print_svp (svp2); |
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| 593 | #endif |
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| 594 | |
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| 595 | art_svp_free (svp); |
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| 596 | |
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| 597 | #ifdef RUN_INTERSECT |
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| 598 | art_svp_free (svp2); |
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| 599 | #endif |
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| 600 | } |
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| 601 | |
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| 602 | static void |
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| 603 | usage (void) |
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| 604 | { |
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| 605 | fprintf (stderr, "usage: testart <test>\n" |
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| 606 | " where <test> is one of:\n" |
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| 607 | " testpat -- make random star + gradients test pattern\n" |
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| 608 | " gradient -- test pattern for rendered gradients\n" |
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| 609 | " dash -- dash test (output is valid PostScript)\n" |
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| 610 | " dist -- distance test\n" |
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| 611 | " intersect -- softball test for intersector\n"); |
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| 612 | exit (1); |
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| 613 | } |
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| 614 | |
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| 615 | int |
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| 616 | main (int argc, char **argv) |
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| 617 | { |
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| 618 | if (argc < 2) |
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| 619 | usage (); |
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| 620 | |
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| 621 | if (!strcmp (argv[1], "testpat")) |
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| 622 | make_testpat (); |
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| 623 | else if (!strcmp (argv[1], "gradient")) |
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| 624 | test_gradient (); |
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| 625 | else if (!strcmp (argv[1], "dist")) |
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| 626 | test_dist (); |
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| 627 | else if (!strcmp (argv[1], "dash")) |
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| 628 | test_dash (); |
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| 629 | else if (!strcmp (argv[1], "intersect")) |
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| 630 | test_intersect (); |
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| 631 | else |
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| 632 | usage (); |
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| 633 | return 0; |
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| 634 | } |
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