1 /*====================================================================*
2 - Copyright (C) 2001 Leptonica. All rights reserved.
3 -
4 - Redistribution and use in source and binary forms, with or without
5 - modification, are permitted provided that the following conditions
6 - are met:
7 - 1. Redistributions of source code must retain the above copyright
8 - notice, this list of conditions and the following disclaimer.
9 - 2. Redistributions in binary form must reproduce the above
10 - copyright notice, this list of conditions and the following
11 - disclaimer in the documentation and/or other materials
12 - provided with the distribution.
13 -
14 - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
15 - ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
16 - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
17 - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY
18 - CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 - EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 - OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
23 - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
24 - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *====================================================================*/
26
27 /*
28 * pnmio_reg.c
29 *
30 * Tests read and write of both ascii and packed pnm, using
31 * pix with 1, 2, 4, 8 and 32 bpp.
32 */
33
34 #include "allheaders.h"
35
main(l_int32 argc,char ** argv)36 l_int32 main(l_int32 argc,
37 char **argv)
38 {
39 FILE *fp;
40 PIX *pix1, *pix2, *pix3, *pix4, *pix5;
41 L_REGPARAMS *rp;
42
43 if (regTestSetup(argc, argv, &rp))
44 return 1;
45
46 lept_rmdir("lept/pnm");
47 lept_mkdir("lept/pnm");
48
49 /* Test 1 bpp (pbm) read/write */
50 pix1 = pixRead("char.tif");
51 fp = lept_fopen("/tmp/lept/pnm/pix1.1.pnm", "wb");
52 pixWriteStreamAsciiPnm(fp, pix1);
53 lept_fclose(fp);
54 pix2 = pixRead("/tmp/lept/pnm/pix1.1.pnm");
55 pixWrite("/tmp/lept/pnm/pix2.1.pnm", pix2, IFF_PNM);
56 pix3 = pixRead("/tmp/lept/pnm/pix2.1.pnm");
57 regTestComparePix(rp, pix1, pix3); /* 0 */
58 /* write PAM */
59 fp = lept_fopen("/tmp/lept/pnm/pix3.1.pnm", "wb");
60 pixWriteStreamPam(fp, pix1);
61 lept_fclose(fp);
62 pix4 = pixRead("/tmp/lept/pnm/pix3.1.pnm");
63 regTestComparePix(rp, pix1, pix4); /* 1 */
64 pixDestroy(&pix1);
65 pixDestroy(&pix2);
66 pixDestroy(&pix3);
67 pixDestroy(&pix4);
68
69 /* Test 2, 4 and 8 bpp (pgm) read/write */
70 pix1 = pixRead("weasel8.png");
71 pix2 = pixThresholdTo2bpp(pix1, 4, 0);
72 fp = lept_fopen("/tmp/lept/pnm/pix2.2.pnm", "wb");
73 pixWriteStreamAsciiPnm(fp, pix2);
74 lept_fclose(fp);
75 pix3 = pixRead("/tmp/lept/pnm/pix2.2.pnm");
76 pixWrite("/tmp/lept/pnm/pix3.2.pnm", pix3, IFF_PNM);
77 pix4 = pixRead("/tmp/lept/pnm/pix3.2.pnm");
78 regTestComparePix(rp, pix2, pix4); /* 2 */
79 /* write PAM */
80 fp = lept_fopen("/tmp/lept/pnm/pix4.2.pnm", "wb");
81 pixWriteStreamPam(fp, pix2);
82 lept_fclose(fp);
83 pix5 = pixRead("/tmp/lept/pnm/pix4.2.pnm");
84 regTestComparePix(rp, pix2, pix5); /* 3 */
85 pixDestroy(&pix2);
86 pixDestroy(&pix3);
87 pixDestroy(&pix4);
88 pixDestroy(&pix5);
89
90 pix2 = pixThresholdTo4bpp(pix1, 16, 0);
91 fp = lept_fopen("/tmp/lept/pnm/pix2.4.pnm", "wb");
92 pixWriteStreamAsciiPnm(fp, pix2);
93 lept_fclose(fp);
94 pix3 = pixRead("/tmp/lept/pnm/pix2.4.pnm");
95 pixWrite("/tmp/lept/pnm/pix3.4.pnm", pix3, IFF_PNM);
96 pix4 = pixRead("/tmp/lept/pnm/pix3.4.pnm");
97 regTestComparePix(rp, pix2, pix4); /* 4 */
98 /* write PAM */
99 fp = lept_fopen("/tmp/lept/pnm/pix4.4.pnm", "wb");
100 pixWriteStreamPam(fp, pix2);
101 lept_fclose(fp);
102 pix5 = pixRead("/tmp/lept/pnm/pix4.4.pnm");
103 regTestComparePix(rp, pix2, pix5); /* 5 */
104 pixDestroy(&pix2);
105 pixDestroy(&pix3);
106 pixDestroy(&pix4);
107 pixDestroy(&pix5);
108
109 fp = lept_fopen("/tmp/lept/pnm/pix1.8.pnm", "wb");
110 pixWriteStreamAsciiPnm(fp, pix1);
111 lept_fclose(fp);
112 pix2 = pixRead("/tmp/lept/pnm/pix1.8.pnm");
113 pixWrite("/tmp/lept/pnm/pix2.8.pnm", pix2, IFF_PNM);
114 pix3 = pixRead("/tmp/lept/pnm/pix2.8.pnm");
115 regTestComparePix(rp, pix1, pix3); /* 6 */
116 /* write PAM */
117 fp = lept_fopen("/tmp/lept/pnm/pix3.8.pnm", "wb");
118 pixWriteStreamPam(fp, pix1);
119 lept_fclose(fp);
120 pix4 = pixRead("/tmp/lept/pnm/pix3.8.pnm");
121 regTestComparePix(rp, pix1, pix4); /* 7 */
122 pixDestroy(&pix1);
123 pixDestroy(&pix2);
124 pixDestroy(&pix3);
125 pixDestroy(&pix4);
126
127 /* Test ppm (24 bpp rgb) read/write */
128 pix1 = pixRead("marge.jpg");
129 fp = lept_fopen("/tmp/lept/pnm/pix1.24.pnm", "wb");
130 pixWriteStreamAsciiPnm(fp, pix1);
131 lept_fclose(fp);
132 pix2 = pixRead("/tmp/lept/pnm/pix1.24.pnm");
133 pixWrite("/tmp/lept/pnm/pix2.24.pnm", pix2, IFF_PNM);
134 pix3 = pixRead("/tmp/lept/pnm/pix2.24.pnm");
135 regTestComparePix(rp, pix1, pix3); /* 8 */
136 /* write PAM */
137 fp = lept_fopen("/tmp/lept/pnm/pix3.24.pnm", "wb");
138 pixWriteStreamPam(fp, pix1);
139 lept_fclose(fp);
140 pix4 = pixRead("/tmp/lept/pnm/pix3.24.pnm");
141 regTestComparePix(rp, pix1, pix4); /* 9 */
142 pixDestroy(&pix1);
143 pixDestroy(&pix2);
144 pixDestroy(&pix3);
145 pixDestroy(&pix4);
146
147 /* Test pam (32 bpp rgba) read/write */
148 pix1 = pixRead("test32-alpha.png");
149 fp = lept_fopen("/tmp/lept/pnm/pix1.32.pnm", "wb");
150 pixWriteStreamPam(fp, pix1);
151 lept_fclose(fp);
152 pix2 = pixRead("/tmp/lept/pnm/pix1.32.pnm");
153 pixWrite("/tmp/lept/pnm/pix2.32.pnm", pix2, IFF_PNM);
154 pix3 = pixRead("/tmp/lept/pnm/pix2.32.pnm");
155 regTestComparePix(rp, pix1, pix3); /* 10 */
156 pixDestroy(&pix1);
157 pixDestroy(&pix2);
158 pixDestroy(&pix3);
159
160 return regTestCleanup(rp);
161 }
162