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<h1>/home/paul/dev/cegui/release_tmp/release_tmp/src/loaders/SILLYJPGImageContext.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/***********************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"> filename: SILLYJPGImageContext.cpp</span>
<a name="l00003"></a>00003 <span class="comment"> created: 11 Jun 2006</span>
<a name="l00004"></a>00004 <span class="comment"> author: Olivier Delannoy </span>
<a name="l00005"></a>00005 <span class="comment"></span>
<a name="l00006"></a>00006 <span class="comment"> purpose: Definition of the JPGImageContext class methods </span>
<a name="l00007"></a>00007 <span class="comment">*************************************************************************/</span>
<a name="l00008"></a>00008 <span class="comment">/***************************************************************************</span>
<a name="l00009"></a>00009 <span class="comment"> * Copyright (C) 2004 - 2006 Paul D Turner & The CEGUI Development Team</span>
<a name="l00010"></a>00010 <span class="comment"> *</span>
<a name="l00011"></a>00011 <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining</span>
<a name="l00012"></a>00012 <span class="comment"> * a copy of this software and associated documentation files (the</span>
<a name="l00013"></a>00013 <span class="comment"> * "Software"), to deal in the Software without restriction, including</span>
<a name="l00014"></a>00014 <span class="comment"> * without limitation the rights to use, copy, modify, merge, publish,</span>
<a name="l00015"></a>00015 <span class="comment"> * distribute, sublicense, and/or sell copies of the Software, and to</span>
<a name="l00016"></a>00016 <span class="comment"> * permit persons to whom the Software is furnished to do so, subject to</span>
<a name="l00017"></a>00017 <span class="comment"> * the following conditions:</span>
<a name="l00018"></a>00018 <span class="comment"> *</span>
<a name="l00019"></a>00019 <span class="comment"> * The above copyright notice and this permission notice shall be</span>
<a name="l00020"></a>00020 <span class="comment"> * included in all copies or substantial portions of the Software.</span>
<a name="l00021"></a>00021 <span class="comment"> *</span>
<a name="l00022"></a>00022 <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,</span>
<a name="l00023"></a>00023 <span class="comment"> * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF</span>
<a name="l00024"></a>00024 <span class="comment"> * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.</span>
<a name="l00025"></a>00025 <span class="comment"> * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR</span>
<a name="l00026"></a>00026 <span class="comment"> * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,</span>
<a name="l00027"></a>00027 <span class="comment"> * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR</span>
<a name="l00028"></a>00028 <span class="comment"> * OTHER DEALINGS IN THE SOFTWARE.</span>
<a name="l00029"></a>00029 <span class="comment"> ***************************************************************************/</span>
<a name="l00030"></a>00030 <span class="preprocessor">#ifdef HAVE_CONFIG_H</span>
<a name="l00031"></a>00031 <span class="preprocessor"></span><span class="preprocessor">#include <config.h></span>
<a name="l00032"></a>00032 <span class="preprocessor">#endif</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include "loaders/SILLYJPGImageContext.h"</span>
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="preprocessor">#ifndef SILLY_OPT_INLINE</span>
<a name="l00037"></a>00037 <span class="preprocessor"></span><span class="preprocessor">#define inline </span>
<a name="l00038"></a>00038 <span class="preprocessor"></span><span class="preprocessor">#include "loaders/SILLYJPGImageContext.icpp"</span>
<a name="l00039"></a>00039 <span class="preprocessor">#undef inline</span>
<a name="l00040"></a>00040 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span>
<a name="l00042"></a>00042 <span class="preprocessor">#include <jpeglib.h></span>
<a name="l00043"></a>00043
<a name="l00044"></a>00044 <span class="comment">// Start section of namespace SILLY</span>
<a name="l00045"></a><a class="code" href="a00168.html">00045</a> <span class="keyword">namespace </span>SILLY
<a name="l00046"></a>00046 {
<a name="l00047"></a>00047
<a name="l00048"></a>00048
<a name="l00049"></a><a class="code" href="a00168.html#b7cca27f99ef4d2e719a8b59cfdb49d1">00049</a> <span class="keywordtype">void</span> <a class="code" href="a00168.html#b7cca27f99ef4d2e719a8b59cfdb49d1">JPG_init_source</a>(j_decompress_ptr cinfo)
<a name="l00050"></a>00050 {
<a name="l00051"></a>00051 <span class="comment">// Nothing to do </span>
<a name="l00052"></a>00052 }
<a name="l00053"></a>00053
<a name="l00054"></a><a class="code" href="a00168.html#0bd0b70fe3e307a364eb135188da61f8">00054</a> <span class="keywordtype">boolean</span> <a class="code" href="a00168.html#0bd0b70fe3e307a364eb135188da61f8">JPG_fill_input_buffer</a>(j_decompress_ptr cinfo)
<a name="l00055"></a>00055 {
<a name="l00056"></a>00056 <a class="code" href="a00119.html">JPGImageContext</a>* jpg = reinterpret_cast<JPGImageContext*>(cinfo->client_data);
<a name="l00057"></a>00057 cinfo->src->next_input_byte = jpg-><a class="code" href="a00119.html#8b95f1174253c5044bf2c5cf17c33e47">d_source</a>-><a class="code" href="a00113.html#6934c681732d2bd45de2488da4cfcc18">getDataPtr</a>();
<a name="l00058"></a>00058 cinfo->src->bytes_in_buffer = jpg-><a class="code" href="a00119.html#8b95f1174253c5044bf2c5cf17c33e47">d_source</a>-><a class="code" href="a00113.html#4dad7813125c98765472a1229c8e619b">getSize</a>();
<a name="l00059"></a>00059 <span class="keywordflow">return</span> TRUE;
<a name="l00060"></a>00060 }
<a name="l00061"></a>00061
<a name="l00062"></a><a class="code" href="a00168.html#6afc68622540224cd6257bddec679966">00062</a> <span class="keywordtype">void</span> <a class="code" href="a00168.html#6afc68622540224cd6257bddec679966">JPG_skip_input_data</a>(j_decompress_ptr cinfo, <span class="keywordtype">long</span> num_bytes)
<a name="l00063"></a>00063 {
<a name="l00064"></a>00064 <span class="keywordflow">if</span> (num_bytes > 0)
<a name="l00065"></a>00065 {
<a name="l00066"></a>00066 cinfo->src->next_input_byte += (size_t)num_bytes;
<a name="l00067"></a>00067 cinfo->src->bytes_in_buffer -= (size_t)num_bytes;
<a name="l00068"></a>00068 }
<a name="l00069"></a>00069 }
<a name="l00070"></a>00070
<a name="l00071"></a><a class="code" href="a00168.html#f47634e7bbe786f9aa3831c74e1fd96f">00071</a> <span class="keywordtype">void</span> <a class="code" href="a00168.html#f47634e7bbe786f9aa3831c74e1fd96f">JPG_term_source</a>(j_decompress_ptr cinfo)
<a name="l00072"></a>00072 {
<a name="l00073"></a>00073 <span class="comment">// Nothing to do </span>
<a name="l00074"></a>00074 }
<a name="l00075"></a>00075
<a name="l00076"></a><a class="code" href="a00168.html#1bed08221a30ecdd18c0178b9f48cf5a">00076</a> <span class="keywordtype">void</span> <a class="code" href="a00168.html#1bed08221a30ecdd18c0178b9f48cf5a">JPG_error_exit</a>(j_common_ptr cinfo)
<a name="l00077"></a>00077 {
<a name="l00078"></a>00078 <a class="code" href="a00119.html">JPGImageContext</a>* jpg = reinterpret_cast<JPGImageContext*>(cinfo->client_data);
<a name="l00079"></a>00079 <span class="comment">// TODO </span>
<a name="l00080"></a>00080 longjmp(jpg-><a class="code" href="a00119.html#cf7d5f4595d2b61f0a5d3dedba18b8ec">setjmp_buffer</a>, 1);
<a name="l00081"></a>00081
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083
<a name="l00084"></a><a class="code" href="a00168.html#efc259fdaa30bcfbae87b80529d6cc67">00084</a> <span class="keywordtype">void</span> <a class="code" href="a00168.html#efc259fdaa30bcfbae87b80529d6cc67">JPG_emit_message</a>(j_common_ptr cinfo, <span class="keywordtype">int</span> msg_level)
<a name="l00085"></a>00085 {
<a name="l00086"></a>00086 <span class="comment">// Ignore </span>
<a name="l00087"></a>00087 }
<a name="l00088"></a>00088
<a name="l00089"></a>00089
<a name="l00090"></a><a class="code" href="a00119.html#c8806125ac2bbdc2b807c56d44a8bec5">00090</a> <a class="code" href="a00119.html#c8806125ac2bbdc2b807c56d44a8bec5">JPGImageContext::JPGImageContext</a>()
<a name="l00091"></a>00091 : <a class="code" href="a00116.html">ImageContext</a>(0, 0)
<a name="l00092"></a>00092 {
<a name="l00093"></a>00093 <a class="code" href="a00119.html#8a51e28491abb4b2ca9b395ccd71cfe5">src_mgr</a>.bytes_in_buffer = 0;
<a name="l00094"></a>00094 <a class="code" href="a00119.html#8a51e28491abb4b2ca9b395ccd71cfe5">src_mgr</a>.next_input_byte = 0;
<a name="l00095"></a>00095 <a class="code" href="a00119.html#8a51e28491abb4b2ca9b395ccd71cfe5">src_mgr</a>.init_source = <a class="code" href="a00168.html#b7cca27f99ef4d2e719a8b59cfdb49d1">JPG_init_source</a>;
<a name="l00096"></a>00096 <a class="code" href="a00119.html#8a51e28491abb4b2ca9b395ccd71cfe5">src_mgr</a>.fill_input_buffer = <a class="code" href="a00168.html#0bd0b70fe3e307a364eb135188da61f8">JPG_fill_input_buffer</a>;
<a name="l00097"></a>00097 <a class="code" href="a00119.html#8a51e28491abb4b2ca9b395ccd71cfe5">src_mgr</a>.skip_input_data = <a class="code" href="a00168.html#6afc68622540224cd6257bddec679966">JPG_skip_input_data</a>;
<a name="l00098"></a>00098 <a class="code" href="a00119.html#8a51e28491abb4b2ca9b395ccd71cfe5">src_mgr</a>.resync_to_restart = jpeg_resync_to_restart;
<a name="l00099"></a>00099 <a class="code" href="a00119.html#8a51e28491abb4b2ca9b395ccd71cfe5">src_mgr</a>.term_source = <a class="code" href="a00168.html#f47634e7bbe786f9aa3831c74e1fd96f">JPG_term_source</a>;
<a name="l00100"></a>00100 jpeg_create_decompress(&<a class="code" href="a00119.html#687e7db69d3f2fbee914af8f319d1a1f">cinfo</a>);
<a name="l00101"></a>00101 <a class="code" href="a00119.html#687e7db69d3f2fbee914af8f319d1a1f">cinfo</a>.src = &<a class="code" href="a00119.html#8a51e28491abb4b2ca9b395ccd71cfe5">src_mgr</a>;
<a name="l00102"></a>00102 <a class="code" href="a00119.html#687e7db69d3f2fbee914af8f319d1a1f">cinfo</a>.client_data = <span class="keyword">this</span>;
<a name="l00103"></a>00103 <a class="code" href="a00119.html#687e7db69d3f2fbee914af8f319d1a1f">cinfo</a>.err = jpeg_std_error(&<a class="code" href="a00119.html#17a02840312a5c24cee38af1a5aa1369">d_error_mgr</a>);
<a name="l00104"></a>00104 <a class="code" href="a00119.html#17a02840312a5c24cee38af1a5aa1369">d_error_mgr</a>.error_exit = <a class="code" href="a00168.html#1bed08221a30ecdd18c0178b9f48cf5a">JPG_error_exit</a>;
<a name="l00105"></a>00105
<a name="l00106"></a>00106 }
<a name="l00107"></a>00107
<a name="l00108"></a>00108
<a name="l00109"></a><a class="code" href="a00119.html#4b709ad5cb108f51d843893388804a7e">00109</a> <a class="code" href="a00119.html#4b709ad5cb108f51d843893388804a7e">JPGImageContext::~JPGImageContext</a>()
<a name="l00110"></a>00110 {
<a name="l00111"></a>00111 jpeg_destroy_decompress(&<a class="code" href="a00119.html#687e7db69d3f2fbee914af8f319d1a1f">cinfo</a>);
<a name="l00112"></a>00112 }
<a name="l00113"></a>00113
<a name="l00114"></a>00114
<a name="l00115"></a><a class="code" href="a00119.html#1933030eb30a6d5c198a768d8e4fef86">00115</a> <span class="keywordtype">void</span> <a class="code" href="a00119.html#1933030eb30a6d5c198a768d8e4fef86">JPGImageContext::setImageSize</a>()
<a name="l00116"></a>00116 {
<a name="l00117"></a>00117 <a class="code" href="a00116.html#22b02fe8123a5dbe6bb55bd1b8dbd488">setWidth</a>(<a class="code" href="a00119.html#687e7db69d3f2fbee914af8f319d1a1f">cinfo</a>.output_width);
<a name="l00118"></a>00118 <a class="code" href="a00116.html#8bc8c024faf6383c341736e66ee7ad8d">setHeight</a>(<a class="code" href="a00119.html#687e7db69d3f2fbee914af8f319d1a1f">cinfo</a>.output_height);
<a name="l00119"></a>00119 }
<a name="l00120"></a>00120
<a name="l00121"></a>00121 } <span class="comment">// End section of namespace SILLY </span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Sun Nov 5 14:38:42 2006 for Simple Image Loading LibrarY by
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