<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"> <title>libnjb: setpbm.c</title> <link href="tabs.css" rel="stylesheet" type="text/css"> <link href="doxygen.css" rel="stylesheet" type="text/css"> </head><body> <!-- Generated by Doxygen 1.5.9 --> <div class="navigation" id="top"> <div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li><a href="files.html"><span>Files</span></a></li> <li><a href="dirs.html"><span>Directories</span></a></li> <li><a href="examples.html"><span>Examples</span></a></li> </ul> </div> </div> <div class="contents"> <h1>setpbm.c</h1><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#46e41076f44166b6446e3fdae6db62a9">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#ga5ff48cc89e320bc1c1d89efd2613d77">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#g199efd7711a70ae5d63f4052c2e492d3">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#ga631536b597d8f8cb73eeb47eff6640a">NJB_Open</a>(njb) == -1 ) { <a name="a5"></a><a class="code" href="group__internals.html#ge9b849a9a883fe1fd697278bd8d49585">NJB_Error_Dump</a>(njb,stderr); <span class="keywordflow">return</span> 1; } <a name="a6"></a><a class="code" href="group__basic.html#g023eb258743b5961ec1b85cbd62a55cb">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#g0e4e3d0cfec6d9cc16c5b64eb89299b3">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#ge9b849a9a883fe1fd697278bd8d49585">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#ge5871d21d0a4c8e0c9984ffcd47c01ca">NJB_Set_Bitmap</a>(njb, data) == -1 ) { <a class="code" href="group__internals.html#ge9b849a9a883fe1fd697278bd8d49585">NJB_Error_Dump</a>(njb, stderr); } } <a name="a9"></a><a class="code" href="group__basic.html#g69d4034384f1bd033ed2c9ba7a9b32d4">NJB_Release</a>(njb); <a name="a10"></a><a class="code" href="group__basic.html#g13a9c926c430f38f3a6535ecaaf3e9b9">NJB_Close</a> (njb); <span class="keywordflow">return</span> 0; } </pre></div> </div> <hr size="1"><address style="text-align: right;"><small>Generated on Sun Jul 26 17:17:26 2009 for libnjb by <a href="http://www.doxygen.org/index.html"> <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.9 </small></address> </body> </html>