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authorneodarz <neodarz@neodarz.net>2018-08-11 20:21:34 +0200
committerneodarz <neodarz@neodarz.net>2018-08-11 20:21:34 +0200
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tree2568e71a7ccc44ec23b8bb3f0ff97fb6bf2ed709 /docs/doxygen/nel/Pic_BMP_c-source.html
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+<hr><h1>Pic_BMP.c</h1><a href="Pic_BMP_c.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <font class="preprocessor">#include &lt;stdio.h&gt;</font>
+00002 <font class="preprocessor">#include &lt;stdlib.h&gt;</font>
+00003 <font class="preprocessor">#include &lt;string.h&gt;</font>
+00004
+00005 <font class="preprocessor">#include "<a class="code" href="pic_private_h.html">pic_private.h</a>"</font>
+00006 <font class="preprocessor">#include "<a class="code" href="pic_h.html">pic.h</a>"</font>
+00007
+00008 <font class="comment">// ----------------------------------------------------------------------------------------------------------------------------------</font>
+00009
+00010 <font class="preprocessor">#pragma pack(1)
+</font><a name="l00011"></a><a class="code" href="class_BMP_HEADER.html">00011</a> <font class="preprocessor"></font><font class="keyword">typedef</font> <font class="keyword">struct </font><a class="code" href="class_BMP_HEADER.html">BMP_HEADER</a>
+00012 {
+<a name="l00013"></a><a class="code" href="class_BMP_HEADER.html#m0">00013</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">short</font> bfType;
+<a name="l00014"></a><a class="code" href="class_BMP_HEADER.html#m1">00014</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> bfSize;
+<a name="l00015"></a><a class="code" href="class_BMP_HEADER.html#m2">00015</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">short</font> Res1;
+<a name="l00016"></a><a class="code" href="class_BMP_HEADER.html#m3">00016</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">short</font> Res2;
+<a name="l00017"></a><a class="code" href="class_BMP_HEADER.html#m4">00017</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> bfOffBits;
+<a name="l00018"></a><a class="code" href="class_BMP_HEADER.html#m5">00018</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> biSize;
+<a name="l00019"></a><a class="code" href="class_BMP_HEADER.html#m6">00019</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> biWidth;
+<a name="l00020"></a><a class="code" href="class_BMP_HEADER.html#m7">00020</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> biHeight;
+<a name="l00021"></a><a class="code" href="class_BMP_HEADER.html#m8">00021</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">short</font> biPlanes;
+<a name="l00022"></a><a class="code" href="class_BMP_HEADER.html#m9">00022</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">short</font> biBitCount;
+<a name="l00023"></a><a class="code" href="class_BMP_HEADER.html#m10">00023</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> biCompression;
+<a name="l00024"></a><a class="code" href="class_BMP_HEADER.html#m11">00024</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> biSizeImage;
+<a name="l00025"></a><a class="code" href="class_BMP_HEADER.html#m12">00025</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> biXPelsPerMeter;
+<a name="l00026"></a><a class="code" href="class_BMP_HEADER.html#m13">00026</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> biYPelsPerMeter;
+<a name="l00027"></a><a class="code" href="class_BMP_HEADER.html#m14">00027</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> biClrUsed;
+<a name="l00028"></a><a class="code" href="class_BMP_HEADER.html#m15">00028</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> biClrImportant;
+00029 } <a class="code" href="class_BMP_HEADER.html">BMP_HEADER</a>;
+00030 <font class="preprocessor">#pragma pack()
+</font>00031 <font class="preprocessor"></font>
+00032 <font class="comment">// ----------------------------------------------------------------------------------------------------------------------------------</font>
+00033
+<a name="l00034"></a><a class="code" href="Pic_BMP_c.html#a1">00034</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> <a class="code" href="Pic_BMP_c.html#a1">Pic_BMP_Write</a>( <font class="keywordtype">unsigned</font> <font class="keywordtype">char</font> *FileName,
+00035 <font class="keywordtype">unsigned</font> <font class="keywordtype">char</font> *pPal,<font class="keywordtype">unsigned</font> <font class="keywordtype">char</font> *pDatas,
+00036 <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> w, <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> h, <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> d)<font class="keyword">
+</font>00037 <font class="keyword">
+</font>00038 <font class="keyword"></font>{
+00039 FILE *file;
+00040 <a class="code" href="class_BMP_HEADER.html">BMP_HEADER</a> bmph;
+00041 <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> slsize;
+00042 <font class="keywordtype">unsigned</font> <font class="keywordtype">char</font> *scanline;
+00043 <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> i;
+00044 <font class="keywordtype">long</font> x,y,rest;
+00045 <font class="keywordtype">unsigned</font> <font class="keywordtype">char</font> r,g,b;
+00046
+00047 file=fopen(FileName,<font class="stringliteral">"wb"</font>);
+00048 <font class="keywordflow">if</font> (!file)
+00049 {
+00050 <font class="keywordflow">return</font>(0);
+00051 }
+00052 memset(&amp;bmph,0,<font class="keyword">sizeof</font>(<a class="code" href="class_BMP_HEADER.html">BMP_HEADER</a>));
+00053 bmph.bfType=19778;
+00054 bmph.bfSize=<font class="keyword">sizeof</font>(<a class="code" href="class_BMP_HEADER.html">BMP_HEADER</a>);
+00055 bmph.bfSize+=w*h*d/8;
+00056 <font class="keywordflow">if</font> (pPal)
+00057 {
+00058 bmph.bfSize+=(256*4);
+00059 }
+00060 bmph.bfOffBits=<font class="keyword">sizeof</font>(<a class="code" href="class_BMP_HEADER.html">BMP_HEADER</a>);
+00061 <font class="keywordflow">if</font> (pPal)
+00062 {
+00063 bmph.bfOffBits+=(256*4);
+00064 }
+00065 bmph.biSize=40;<font class="comment">//sizeof(BMP_HEADER);</font>
+00066 bmph.biWidth=w;
+00067 bmph.biHeight=h;
+00068 bmph.biPlanes=1;
+00069 bmph.biBitCount=(<font class="keywordtype">unsigned</font> <font class="keywordtype">short</font>)d;
+00070 bmph.biCompression=0;
+00071 bmph.biSizeImage=w*h*d/8;
+00072
+00073 fwrite(&amp;bmph,1,<font class="keyword">sizeof</font>(<a class="code" href="class_BMP_HEADER.html">BMP_HEADER</a>),file);
+00074 <font class="keywordflow">if</font> (pPal)
+00075 {
+00076 <font class="keywordflow">for</font>(i=0 ; i&lt;256 ; i++)
+00077 {
+00078 fwrite(&amp;pPal[i*3+0],1,1,file);
+00079 fwrite(&amp;pPal[i*3+1],1,1,file);
+00080 fwrite(&amp;pPal[i*3+2],1,1,file);
+00081 fwrite(&amp;pPal[i*3+2],1,1,file);
+00082 }
+00083 }
+00084 slsize=w*d/8;
+00085 scanline=<a class="code" href="pic_private_h.html#a4">Pic_calloc</a>(1,slsize);
+00086 <font class="keywordflow">if</font> (!scanline)
+00087 {
+00088 <a class="code" href="pic_private_h.html#a7">Pic_SetError</a>(<font class="stringliteral">"BMP_Write, not enough memory for scanline"</font>);
+00089 <font class="keywordflow">return</font>(0);
+00090 }
+00091 <font class="keywordflow">for</font>(rest=0 ; ((w*d/8)+rest)%4!=0 ; rest++);
+00092 <font class="keywordflow">for</font>(y=0 ; y&lt;(<font class="keywordtype">long</font>)h ; y++)
+00093 {
+00094 memcpy(scanline,&amp;pDatas[(h-y-1)*slsize],slsize);
+00095 <font class="keywordflow">if</font> (d==24)
+00096 {
+00097 <font class="keywordflow">for</font>(x=0 ; x&lt;(<font class="keywordtype">long</font>)w ; x++)
+00098 {
+00099 b=scanline[x*3+0];
+00100 g=scanline[x*3+1];
+00101 r=scanline[x*3+2];
+00102 scanline[x*3+0]=b;
+00103 scanline[x*3+1]=g;
+00104 scanline[x*3+2]=r;
+00105 }
+00106 }
+00107 fwrite(scanline,1,slsize,file);
+00108 <font class="keywordflow">if</font> (rest)
+00109 {
+00110 fwrite(scanline,1,rest,file);
+00111 }
+00112 }
+00113 <a class="code" href="pic_private_h.html#a5">Pic_free</a>(scanline);
+00114 fclose(file);
+00115 <font class="keywordflow">return</font>(1);
+00116 }
+00117
+00118 <font class="comment">// ----------------------------------------------------------------------------------------------------------------------------------</font>
+00119
+<a name="l00120"></a><a class="code" href="Pic_BMP_c.html#a2">00120</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> <a class="code" href="Pic_BMP_c.html#a2">Pic_BMP_Read</a>( <font class="keywordtype">unsigned</font> <font class="keywordtype">char</font> *FileName,
+00121 <font class="keywordtype">unsigned</font> <font class="keywordtype">char</font> **ppPal, <font class="keywordtype">unsigned</font> <font class="keywordtype">char</font> **ppDatas,
+00122 <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> *pWidth, <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> *pHeight,
+00123 <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> *pDepth)<font class="keyword">
+</font>00124 <font class="keyword"></font>{
+00125 FILE *file;
+00126 <a class="code" href="class_BMP_HEADER.html">BMP_HEADER</a> bmph;
+00127 <font class="keywordtype">unsigned</font> <font class="keywordtype">char</font> *pPal;
+00128 <font class="keywordtype">unsigned</font> <font class="keywordtype">char</font> *pDatas;
+00129 <font class="keywordtype">unsigned</font> <font class="keywordtype">char</font> *scanline;
+00130 <font class="keywordtype">long</font> w,h,d;
+00131 <font class="keywordtype">long</font> i,x,y,rest;
+00132 <font class="keywordtype">unsigned</font> <font class="keywordtype">char</font> r,g,b;
+00133 <font class="keywordtype">unsigned</font> <font class="keywordtype">char</font> pad[4];
+00134
+00135 pPal=NULL;
+00136 pDatas=NULL;
+00137 file=fopen(FileName,<font class="stringliteral">"rb"</font>);
+00138 <font class="keywordflow">if</font> (!file)
+00139 {
+00140 <a class="code" href="pic_private_h.html#a7">Pic_SetError</a>(<font class="stringliteral">"BMP_Read, unable to open %s"</font>,FileName);
+00141 <font class="keywordflow">return</font>(0);
+00142 }
+00143 fread(&amp;bmph,1,<font class="keyword">sizeof</font>(<a class="code" href="class_BMP_HEADER.html">BMP_HEADER</a>),file);
+00144 *pWidth=w=bmph.biWidth;
+00145 *pHeight=h=bmph.biHeight;
+00146 *pDepth=d=bmph.biBitCount;
+00147 <font class="keywordflow">if</font> (d!=8 &amp;&amp; d!=24)
+00148 {
+00149 <a class="code" href="pic_private_h.html#a7">Pic_SetError</a>(<font class="stringliteral">"BMP_Read, number of bits per pixel unsupported"</font>);
+00150 <font class="keywordflow">return</font>(0);
+00151 }
+00152 <font class="keywordflow">if</font> (*pDepth==8)
+00153 {
+00154 pPal=<a class="code" href="pic_private_h.html#a4">Pic_calloc</a>(1,256*3);
+00155 <font class="keywordflow">if</font> (!pPal)
+00156 {
+00157 <a class="code" href="pic_private_h.html#a7">Pic_SetError</a>(<font class="stringliteral">"BMP_Read, not enough memory for palette"</font>);
+00158 <font class="keywordflow">return</font>(0);
+00159 }
+00160 <font class="keywordflow">for</font>(i=0 ; i&lt;256 ; i++)
+00161 {
+00162 fread(&amp;pPal[i*3+2],1,1,file);
+00163 fread(&amp;pPal[i*3+1],1,1,file);
+00164 fread(&amp;pPal[i*3+0],1,1,file);
+00165 fread(&amp;pad[0],1,1,file);
+00166 }
+00167 }
+00168 pDatas=<a class="code" href="pic_private_h.html#a4">Pic_calloc</a>(1,w*h*d/8);
+00169 <font class="keywordflow">if</font> (!pDatas)
+00170 {
+00171 <font class="keywordflow">if</font> (pPal)
+00172 {
+00173 <a class="code" href="pic_private_h.html#a5">Pic_free</a>(pPal);
+00174 }
+00175 <a class="code" href="pic_private_h.html#a7">Pic_SetError</a>(<font class="stringliteral">"BMP_Read, not enough memory for datas"</font>);
+00176 <font class="keywordflow">return</font>(0);
+00177 }
+00178 scanline=<a class="code" href="pic_private_h.html#a4">Pic_calloc</a>(1,w*h*d/8);
+00179 <font class="keywordflow">if</font> (!scanline)
+00180 {
+00181 <font class="keywordflow">if</font> (pPal)
+00182 {
+00183 <a class="code" href="pic_private_h.html#a5">Pic_free</a>(pPal);
+00184 }
+00185 <a class="code" href="pic_private_h.html#a5">Pic_free</a>(pDatas);
+00186 <a class="code" href="pic_private_h.html#a7">Pic_SetError</a>(<font class="stringliteral">"BMP_Read, not enough memory for scanline"</font>);
+00187 <font class="keywordflow">return</font>(0);
+00188 }
+00189 <font class="keywordflow">for</font>(rest=0 ; (w+rest)%4!=0 ; rest++);
+00190 <font class="keywordflow">for</font>(y=0 ; y&lt;h ; y++)
+00191 {
+00192 fread(scanline,w,d/8,file);
+00193 <font class="keywordflow">if</font> (d==24)
+00194 {
+00195 <font class="keywordflow">for</font>(x=0 ; x&lt;w ; x++)
+00196 {
+00197 r=scanline[x*3+0];
+00198 g=scanline[x*3+1];
+00199 b=scanline[x*3+2];
+00200 scanline[x*3+0]=b;
+00201 scanline[x*3+1]=g;
+00202 scanline[x*3+2]=r;
+00203 }
+00204 }
+00205 memcpy(&amp;pDatas[(h-y-1)*w*d/8],scanline,w*d/8);
+00206 fread(pad,rest,d/8,file);
+00207 }
+00208 fclose(file);
+00209 <a class="code" href="pic_private_h.html#a5">Pic_free</a>(scanline);
+00210 *ppPal=pPal;
+00211 *ppDatas=pDatas;
+00212 <font class="keywordflow">return</font>(1);
+00213 }
+00214
+00215 <font class="comment">// ----------------------------------------------------------------------------------------------------------------------------------</font>
+</div></pre>
+
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