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<h1>setpbm.c</h1> </div>
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<div class="fragment"><pre class="fragment"><span class="preprocessor">#include "common.h"</span>
<span class="comment">/* For isspace() */</span>
<span class="preprocessor">#include <ctype.h></span>
<span class="keyword">static</span> <span class="keywordtype">void</span> usage (<span class="keywordtype">void</span>)
{
fprintf(stderr, <span class="stringliteral">"usage: setpbm [ -D debuglvl ] <path>\n"</span>);
exit(1);
}
<span class="keyword">static</span> <span class="keywordtype">void</span> skip_whitespaces (FILE *f) {
<span class="keywordtype">int</span> c;
<span class="keywordflow">while</span> (!feof (f)) {
c = fgetc (f);
<span class="keywordflow">if</span> (!isspace (c)) {
<span class="keywordflow">if</span> (c == <span class="charliteral">'#'</span>) { <span class="comment">// Skip comment</span>
<span class="keywordflow">while</span> (!feof (f) && (c = fgetc (f)) != <span class="charliteral">'\n'</span>)
;
}
<span class="keywordflow">else</span> {
ungetc (c, f);
<span class="keywordflow">break</span>;
}
}
}
}
<span class="keyword">static</span> <span class="keywordtype">int</span> verify_pbm (FILE *f, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y) {
u_int16_t magic;
<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> width, height;
<span class="keywordtype">int</span> c;
<span class="keywordflow">if</span> (fread (&magic, 1, 2, f) < 2) {
<span class="keywordflow">return</span> -1;
}
<span class="keywordflow">if</span> (magic != 0x3450) {
<span class="keywordflow">return</span> -1;
}
skip_whitespaces(f);
width = 0;
fscanf (f, <span class="stringliteral">"%u"</span>, &width);
<span class="keywordflow">if</span> (width != x) {
<span class="keywordflow">return</span> -1;
}
skip_whitespaces (f);
fscanf (f, <span class="stringliteral">"%u"</span>, &height);
<span class="keywordflow">if</span> (height != y) {
<span class="keywordflow">return</span> -1;
}
c = fgetc (f);
<span class="keywordflow">if</span> (!isspace (c)) {
<span class="keywordflow">return</span> -1;
}
<span class="keywordflow">return</span> 0;
}
<span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> **argv)
{
<a name="_a0"></a><a class="code" href="structnjb__struct.html">njb_t</a> njbs[<a name="a1"></a><a class="code" href="libnjb_8h.html#a46e41076f44166b6446e3fdae6db62a9">NJB_MAX_DEVICES</a>], *njb;
<span class="keywordtype">int</span> n, opt, debug;
<span class="keyword">extern</span> <span class="keywordtype">int</span> optind;
<span class="keyword">extern</span> <span class="keywordtype">char</span> *optarg;
<span class="keywordtype">char</span> *path;
<span class="keywordtype">int</span> x, y, bytes;
debug = 0;
<span class="keywordflow">while</span> ( (opt = getopt(argc, argv, <span class="stringliteral">"D:"</span>)) != -1 ) {
<span class="keywordflow">switch</span> (opt) {
<span class="keywordflow">case</span> <span class="charliteral">'D'</span>:
debug= atoi(optarg);
<span class="keywordflow">break</span>;
<span class="keywordflow">default</span>:
usage();
}
}
argc -= optind;
argv += optind;
<span class="keywordflow">if</span> ( argc != 1 ) usage();
<span class="keywordflow">if</span> ( debug ) <a name="a2"></a><a class="code" href="group__internals.html#gaa5ff48cc89e320bc1c1d89efd2613d77">NJB_Set_Debug</a>(debug);
path= argv[0];
printf(<span class="stringliteral">"Uploading image:\n"</span>);
printf(<span class="stringliteral">"Filename: %s\n"</span>, path);
<span class="keywordflow">if</span> (<a name="a3"></a><a class="code" href="group__basic.html#ga199efd7711a70ae5d63f4052c2e492d3">NJB_Discover</a>(njbs, 0, &n) == -1) {
fprintf(stderr, <span class="stringliteral">"could not locate any jukeboxes\n"</span>);
<span class="keywordflow">return</span> 1;
}
<span class="keywordflow">if</span> ( n == 0 ) {
fprintf(stderr, <span class="stringliteral">"no NJB devices found\n"</span>);
<span class="keywordflow">return</span> 0;
}
njb = njbs;
<span class="keywordflow">if</span> ( <a name="a4"></a><a class="code" href="group__basic.html#gaa631536b597d8f8cb73eeb47eff6640a">NJB_Open</a>(njb) == -1 ) {
<a name="a5"></a><a class="code" href="group__internals.html#gae9b849a9a883fe1fd697278bd8d49585">NJB_Error_Dump</a>(njb,stderr);
<span class="keywordflow">return</span> 1;
}
<a name="a6"></a><a class="code" href="group__basic.html#ga023eb258743b5961ec1b85cbd62a55cb">NJB_Capture</a>(njb);
<span class="comment">/* Get the bitmap dimensions */</span>
<span class="keywordflow">if</span> ( <a name="a7"></a><a class="code" href="group__basic.html#ga0e4e3d0cfec6d9cc16c5b64eb89299b3">NJB_Get_Bitmap_Dimensions</a>(njb, &x, &y, &bytes) == -1 ) {
printf(<span class="stringliteral">"This device does not support setting the bitmap."</span>);
<a class="code" href="group__internals.html#gae9b849a9a883fe1fd697278bd8d49585">NJB_Error_Dump</a>(njb, stderr);
} <span class="keywordflow">else</span> {
FILE *f;
<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> data[1088];
<span class="keywordflow">if</span> ( (f = fopen(path, <span class="stringliteral">"rb"</span>)) == NULL) {
printf(<span class="stringliteral">"Could not open bitmap file.\n"</span>);
exit(-1);
}
<span class="keywordflow">if</span> (verify_pbm(f, x, y) == -1) {
printf(<span class="stringliteral">"Bad bitmap dimensions or bad file.\n"</span>);
fclose (f);
exit(-1);
}
<span class="keywordflow">if</span> ( fread (data, 1, 1088, f) < 1088 ) {
printf(<span class="stringliteral">"Could not read in bitmap file.\n"</span>);
fclose (f);
exit(-1);
}
fclose (f);
<span class="keywordflow">if</span> ( <a name="a8"></a><a class="code" href="group__basic.html#gae5871d21d0a4c8e0c9984ffcd47c01ca">NJB_Set_Bitmap</a>(njb, data) == -1 ) {
<a class="code" href="group__internals.html#gae9b849a9a883fe1fd697278bd8d49585">NJB_Error_Dump</a>(njb, stderr);
}
}
<a name="a9"></a><a class="code" href="group__basic.html#ga69d4034384f1bd033ed2c9ba7a9b32d4">NJB_Release</a>(njb);
<a name="a10"></a><a class="code" href="group__basic.html#ga13a9c926c430f38f3a6535ecaaf3e9b9">NJB_Close</a> (njb);
<span class="keywordflow">return</span> 0;
}
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