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<title>Camstream: CamStream API documentation</title>
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<h1>CodecImage.h</h1><a href="_codec_image_8h.html">Go to the documentation of this file.</a><pre class="fragment"><div>00001 <span class="preprocessor">#ifndef CODEC_IMAGE_HPP</span>
00002 <span class="preprocessor"></span><span class="preprocessor">#define CODEC_IMAGE_HPP</span>
00003 <span class="preprocessor"></span>
00004 <span class="preprocessor">#include &lt;stdio.h&gt;</span>
00005 <span class="preprocessor">#include &lt;stdlib.h&gt;</span>
00006 <span class="preprocessor">#include &lt;string.h&gt;</span>
00007 <span class="preprocessor">#include &lt;sys/types.h&gt;</span>
00008 
00009 <span class="preprocessor">#if defined(WIN32)</span>
00010 <span class="preprocessor"></span><span class="keyword">typedef</span> __int16 int16_t;
00011 <span class="preprocessor">#endif</span>
00012 <span class="preprocessor"></span>
<a name="l00013"></a><a class="code" href="class_c_codec_image.html">00013</a> <span class="keyword">class </span><a class="code" href="class_c_codec_image.html">CCodecImage</a>
00014 {
00015 <span class="keyword">private</span>:
00016 
00017 <span class="keyword">protected</span>:
<a name="l00018"></a><a class="code" href="struct_c_codec_image_1_1_image_data.html">00018</a>    <span class="keyword">struct </span><a class="code" href="struct_c_codec_image_1_1_image_data.html">ImageData</a>
00019    {
<a name="l00020"></a><a class="code" href="struct_c_codec_image_1_1_image_data.html#o0">00020</a>      <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="struct_c_codec_image_1_1_image_data.html#o0">Count</a>;
<a name="l00021"></a><a class="code" href="struct_c_codec_image_1_1_image_data.html#o1">00021</a>      <span class="keywordtype">int</span> <a class="code" href="struct_c_codec_image_1_1_image_data.html#o1">Width</a>, <a class="code" href="struct_c_codec_image_1_1_image_data.html#o2">Height</a>;
<a name="l00022"></a><a class="code" href="struct_c_codec_image_1_1_image_data.html#o3">00022</a>      <span class="keywordtype">int</span> <a class="code" href="struct_c_codec_image_1_1_image_data.html#o3">Pixels</a>;
<a name="l00023"></a><a class="code" href="struct_c_codec_image_1_1_image_data.html#o4">00023</a>      int16_t *<a class="code" href="struct_c_codec_image_1_1_image_data.html#o4">pImage</a>;
00024 
<a name="l00025"></a><a class="code" href="struct_c_codec_image_1_1_image_data.html#a0">00025</a>      <a class="code" href="struct_c_codec_image_1_1_image_data.html#a0">ImageData</a>()
00026      {
00027        <a class="code" href="struct_c_codec_image_1_1_image_data.html#o0">Count</a> = 1;
00028        <a class="code" href="struct_c_codec_image_1_1_image_data.html#o1">Width</a> = 0;
00029        <a class="code" href="struct_c_codec_image_1_1_image_data.html#o2">Height</a> = 0;
00030        <a class="code" href="struct_c_codec_image_1_1_image_data.html#o3">Pixels</a> = 0;
00031        <a class="code" href="struct_c_codec_image_1_1_image_data.html#o4">pImage</a> = 0;
00032      }
00033 
<a name="l00034"></a><a class="code" href="struct_c_codec_image_1_1_image_data.html#a1">00034</a>      <a class="code" href="struct_c_codec_image_1_1_image_data.html#a1">~ImageData</a>()
00035      {
00036        free(<a class="code" href="struct_c_codec_image_1_1_image_data.html#o4">pImage</a>);
00037        <a class="code" href="struct_c_codec_image_1_1_image_data.html#o4">pImage</a> = 0;
00038      }
00039 
<a name="l00040"></a><a class="code" href="struct_c_codec_image_1_1_image_data.html#a2">00040</a>      <span class="keywordtype">void</span> <a class="code" href="struct_c_codec_image_1_1_image_data.html#a2">Malloc</a>(<span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h)
00041      {
00042        <span class="keywordtype">void</span> *s;
00043 
00044        <span class="comment">// Only reallocate when size is different</span>
00045        <span class="keywordflow">if</span> (w == <a class="code" href="struct_c_codec_image_1_1_image_data.html#o1">Width</a> &amp;&amp; h == <a class="code" href="struct_c_codec_image_1_1_image_data.html#o2">Height</a> &amp;&amp; <a class="code" href="struct_c_codec_image_1_1_image_data.html#o4">pImage</a> != 0)
00046          <span class="keywordflow">return</span>;
00047        s = realloc(<a class="code" href="struct_c_codec_image_1_1_image_data.html#o4">pImage</a>, w * h * <span class="keyword">sizeof</span>(int16_t));
00048        <span class="keywordflow">if</span> (s == 0)
00049        {
00050          printf(<span class="stringliteral">"CCodecImage::ImageData::Malloc: no memory!\n"</span>);
00051          free(<a class="code" href="struct_c_codec_image_1_1_image_data.html#o4">pImage</a>);
00052          s = 0;
00053          <a class="code" href="struct_c_codec_image_1_1_image_data.html#o1">Width</a> = 0;
00054          <a class="code" href="struct_c_codec_image_1_1_image_data.html#o2">Height</a> = 0;
00055          <a class="code" href="struct_c_codec_image_1_1_image_data.html#o3">Pixels</a> = 0;
00056        }
00057        <span class="keywordflow">else</span>
00058        {
00059          <a class="code" href="struct_c_codec_image_1_1_image_data.html#o1">Width</a> = w;
00060          <a class="code" href="struct_c_codec_image_1_1_image_data.html#o2">Height</a> = h;
00061          <a class="code" href="struct_c_codec_image_1_1_image_data.html#o3">Pixels</a> = w * h;
00062          memset(s, 0, <a class="code" href="struct_c_codec_image_1_1_image_data.html#o3">Pixels</a> * <span class="keyword">sizeof</span>(int16_t));
00063        }
00064        <a class="code" href="struct_c_codec_image_1_1_image_data.html#o4">pImage</a> = (int16_t *)s;
00065      }
00066 
<a name="l00067"></a><a class="code" href="struct_c_codec_image_1_1_image_data.html#a3">00067</a>      <span class="keywordtype">void</span> <a class="code" href="struct_c_codec_image_1_1_image_data.html#a3">ref</a>()
00068      {
00069        <a class="code" href="struct_c_codec_image_1_1_image_data.html#o0">Count</a>++;
00070      }
<a name="l00071"></a><a class="code" href="struct_c_codec_image_1_1_image_data.html#a4">00071</a>      <span class="keywordtype">bool</span> <a class="code" href="struct_c_codec_image_1_1_image_data.html#a4">deref</a>()
00072      {
00073        <span class="keywordflow">return</span> !--<a class="code" href="struct_c_codec_image_1_1_image_data.html#o0">Count</a>;
00074      }
00075    } *m_pData;
00076 
00077    <span class="keyword">static</span> <span class="keywordtype">bool</span> SanityCheck(<span class="keyword">const</span> <a class="code" href="class_c_codec_image.html">CCodecImage</a> &amp;one, <span class="keyword">const</span> <a class="code" href="class_c_codec_image.html">CCodecImage</a> &amp;two);
00078    <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_c_codec_image.html#b0">detach</a>();
00079    <a class="code" href="class_c_codec_image.html">CCodecImage</a> <a class="code" href="class_c_codec_image.html#b1">copy</a>() const;
00080 
00081  public:
00082    <a class="code" href="class_c_codec_image.html">CCodecImage</a>();
00083    CCodecImage(const CCodecImage &amp;);
00084    CCodecImage(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height);
00085    virtual ~CCodecImage();
00086 
00087    <span class="keywordtype">int</span> Width() const;
00088    <span class="keywordtype">int</span> Height() const;
00089    virtual <span class="keywordtype">void</span> Resize(<span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h);
00090 
00091    <span class="keywordtype">void</span> Load(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, const <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *src);
00092    <span class="keywordtype">void</span> Store(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *dst);
00093 
00094    CCodecImage &amp;operator =(const CCodecImage &amp;src);
00095    CCodecImage &amp;operator -=(const CCodecImage &amp;sub);
00096    CCodecImage operator -(const CCodecImage &amp;sub) const;
00097 };
00098 
<a name="l00099"></a><a class="code" href="class_y_u_v_triplet.html">00099</a> template &lt;class Image&gt; class <a class="code" href="class_y_u_v_triplet.html">YUVTriplet</a>
00100 {
00101 <span class="keyword">private</span>:
00102 
00103 <span class="keyword">public</span>:
<a name="l00104"></a><a class="code" href="class_y_u_v_triplet.html#o0">00104</a>    Image Y;
<a name="l00105"></a><a class="code" href="class_y_u_v_triplet.html#o1">00105</a>    Image U;
<a name="l00106"></a><a class="code" href="class_y_u_v_triplet.html#o2">00106</a>    Image V;
00107 
00108    <a class="code" href="class_y_u_v_triplet.html">YUVTriplet&lt;Image&gt;</a>()
00109    {
00110       <span class="comment">/* Do exactly nothing */</span>
00111    }
00112 
00113    <a class="code" href="class_y_u_v_triplet.html">YUVTriplet&lt;Image&gt;</a>(<span class="keyword">const</span> YUVTriplet &lt;Image&gt; &amp;copy)
00114    {
00115      Y = copy.Y;
00116      U = copy.U;
00117      V = copy.V;
00118    }
00119 
<a name="l00120"></a><a class="code" href="class_y_u_v_triplet.html#a2">00120</a>    <a class="code" href="class_y_u_v_triplet.html">YUVTriplet&lt;Image&gt;</a> &amp;operator =(<span class="keyword">const</span> <a class="code" href="class_y_u_v_triplet.html">YUVTriplet&lt;Image&gt;</a> &amp;assign)
00121    {
00122       Y = assign.<a class="code" href="class_y_u_v_triplet.html#o0">Y</a>;
00123       U = assign.<a class="code" href="class_y_u_v_triplet.html#o1">U</a>;
00124       V = assign.<a class="code" href="class_y_u_v_triplet.html#o2">V</a>;
00125       <span class="keywordflow">return</span> *<span class="keyword">this</span>;
00126    }
00127 
<a name="l00128"></a><a class="code" href="class_y_u_v_triplet.html#a3">00128</a>    <span class="keywordtype">void</span> Resize(<span class="keywordtype">int</span> w, <span class="keywordtype">int</span> h)
00129    {
00130      Y.Resize(w, h);
00131      w &gt;&gt;= 1;
00132      h &gt;&gt;= 1;
00133      U.Resize(w, h);
00134      V.Resize(w, h);
00135    }
00136 
<a name="l00137"></a><a class="code" href="class_y_u_v_triplet.html#a4">00137</a>    <a class="code" href="class_y_u_v_triplet.html">YUVTriplet&lt;Image&gt;</a> operator -(<span class="keyword">const</span> <a class="code" href="class_y_u_v_triplet.html">YUVTriplet&lt;Image&gt;</a> &amp;sub)<span class="keyword"> const</span>
00138 <span class="keyword">   </span>{
00139       <a class="code" href="class_y_u_v_triplet.html">YUVTriplet&lt;Image&gt;</a> result;
00140 
00141       result.<a class="code" href="class_y_u_v_triplet.html#o0">Y</a> = Y - sub.<a class="code" href="class_y_u_v_triplet.html#o0">Y</a>;
00142       result.<a class="code" href="class_y_u_v_triplet.html#o1">U</a> = U - sub.<a class="code" href="class_y_u_v_triplet.html#o1">U</a>;
00143       result.<a class="code" href="class_y_u_v_triplet.html#o2">V</a> = V - sub.<a class="code" href="class_y_u_v_triplet.html#o2">V</a>;
00144       <span class="keywordflow">return</span> result;
00145    }
00146 };
00147 
00148 <span class="preprocessor">#endif</span>
</div></pre><hr size="1"><address style="align: right;"><small>Generated on Wed Dec 13 23:38:46 2006 for CamStream by
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