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<h1>pldirectfbbmp.h</h1><div class="fragment"><pre>00001 <span class="comment">/*</span>
00002 <span class="comment">/--------------------------------------------------------------------</span>
00003 <span class="comment">|</span>
00004 <span class="comment">| $Id: pldirectfbbmp_8h-source.html,v 1.4 2004/09/15 15:26:29 uzadow Exp $</span>
00005 <span class="comment">|</span>
00006 <span class="comment">| Copyright (c) 1996-2003 Ulrich von Zadow</span>
00007 <span class="comment">|</span>
00008 <span class="comment">\--------------------------------------------------------------------</span>
00009 <span class="comment">*/</span>
00010
00011 <span class="preprocessor">#ifndef INCL_PLDIRECTFBBMP</span>
00012 <span class="preprocessor"></span><span class="preprocessor">#define INCL_PLDIRECTFBBMP</span>
00013 <span class="preprocessor"></span>
00014 <span class="preprocessor">#ifndef INCL_PLBITMAP</span>
00015 <span class="preprocessor"></span><span class="preprocessor">#include "plbitmap.h"</span>
00016 <span class="preprocessor">#endif</span>
00017 <span class="preprocessor"></span>
00018 <span class="preprocessor">#include <directfb.h></span>
00019 <span class="comment"></span>
00020 <span class="comment">//! Manipulates bitmaps stored as DirectFB surfaces.</span>
00021 <span class="comment">//! 8, 24 and 32 bpp (pixel formats DSPF_ARGB, DSPF_RGB32, DSPF_RGB24, DSPF_A8).</span>
00022 <span class="comment">//! The surfaces used are system memory surfaces. </span>
<a name="l00023"></a><a class="code" href="classPLDirectFBBmp.html">00023</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="classPLDirectFBBmp.html">PLDirectFBBmp</a> : <span class="keyword">public</span> <a class="code" href="classPLBmp.html">PLBmp</a>
00024 {
00025
00026 <span class="keyword">public</span>:<span class="comment"></span>
00027 <span class="comment"> //! Sets a pointer to the main DirectFB interface. This needs to be done </span>
00028 <span class="comment"> //! before any PLDirectFBBmps get allocated.</span>
00029 <span class="comment"></span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classPLDirectFBBmp.html#e0">SetDirectFB</a>
00030 ( IDirectFB * pDirectFB
00031 );
00032 <span class="comment"></span>
00033 <span class="comment"> //! Creates an empty bitmap object.</span>
00034 <span class="comment"> //! The Create() function allocates a DirectFB system memory surface for this bitmap.</span>
00035 <span class="comment"> //! Note that only system memory surfaces are supported at the moment.</span>
00036 <span class="comment"></span> <a class="code" href="classPLDirectFBBmp.html">PLDirectFBBmp</a>
00037 ();
00038 <span class="comment"></span>
00039 <span class="comment"> //! Destroys the bitmap.</span>
00040 <span class="comment"></span> <span class="keyword">virtual</span> ~<a class="code" href="classPLDirectFBBmp.html">PLDirectFBBmp</a>
00041 ();
00042 <span class="comment"></span>
00043 <span class="comment"> //! Copy constructor</span>
00044 <span class="comment"></span> <a class="code" href="classPLDirectFBBmp.html">PLDirectFBBmp</a>
00045 ( <span class="keyword">const</span> <a class="code" href="classPLBmp.html">PLBmp</a> &Orig
00046 );
00047 <span class="comment"></span>
00048 <span class="comment"> //! Copy constructor</span>
00049 <span class="comment"></span> <a class="code" href="classPLDirectFBBmp.html">PLDirectFBBmp</a>
00050 ( <span class="keyword">const</span> <a class="code" href="classPLDirectFBBmp.html">PLDirectFBBmp</a> &Orig
00051 );
00052
00053 <span class="keyword">virtual</span> <span class="keywordtype">void</span> CreateFromSurface
00054 ( IDirectFBSurface * pSurface,
00055 <span class="keywordtype">bool</span> bOwnsSurface
00056 );
00057
00058 <span class="preprocessor">#ifdef _DEBUG</span>
00059 <span class="preprocessor"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> AssertValid
00060 () <span class="keyword">const</span>; <span class="comment">// Tests internal object state</span>
00061 <span class="preprocessor">#endif</span>
00062 <span class="preprocessor"></span><span class="comment"></span>
00063 <span class="comment"> //! Assignment operator.</span>
00064 <span class="comment"></span> <a class="code" href="classPLDirectFBBmp.html">PLDirectFBBmp</a> &<span class="keyword">operator</span>=
00065 ( <span class="keyword">const</span> <a class="code" href="classPLBmp.html">PLBmp</a> &Orig
00066 );
00067 <span class="comment"></span>
00068 <span class="comment"> //! Assignment operator.</span>
00069 <span class="comment"></span> <a class="code" href="classPLDirectFBBmp.html">PLDirectFBBmp</a> &<span class="keyword">operator</span>=
00070 ( <span class="keyword">const</span> <a class="code" href="classPLDirectFBBmp.html">PLDirectFBBmp</a> &Orig
00071 );
00072
00073 <span class="comment">// PLDirectFBBmp information</span>
00074 <span class="comment"></span>
00075 <span class="comment"> //! Returns a pointer to the internal DirectFB surface. The surface is still</span>
00076 <span class="comment"> //! owned by the bitmap object.</span>
00077 <span class="comment"> //! Using this pointer, you can bring DirectFB and paintlib data out of sync</span>
00078 <span class="comment"> //! easily. Handle with care.</span>
00079 <span class="comment"></span> IDirectFBSurface * <a class="code" href="classPLDirectFBBmp.html#a7">GetSurface</a>
00080 ();
00081 <span class="comment"></span>
00082 <span class="comment"> //! Returns the amount of memory used by the object.</span>
00083 <span class="comment"></span> <span class="keywordtype">long</span> <a class="code" href="classPLDirectFBBmp.html#a8">GetMemUsed</a>
00084 ();
00085 <span class="comment"></span>
00086 <span class="comment"> //! Returns number of bytes used per line.</span>
00087 <span class="comment"></span> <span class="keywordtype">long</span> <a class="code" href="classPLDirectFBBmp.html#a9">GetBytesPerLine</a>
00088 ();
00089
00090 <span class="comment">// Static functions</span>
00091 <span class="comment"></span>
00092 <span class="comment"> //! Returns memory needed by a bitmap with the specified attributes.</span>
00093 <span class="comment"></span> <span class="keyword">static</span> <span class="keywordtype">long</span> <a class="code" href="classPLDirectFBBmp.html#e1">GetMemNeeded</a>
00094 ( PLLONG width,
00095 PLLONG height,
00096 PLWORD BitsPerPixel
00097 );
00098 <span class="comment"></span>
00099 <span class="comment"> //! Returns memory needed by bitmap bits.</span>
00100 <span class="comment"></span> <span class="keyword">static</span> <span class="keywordtype">long</span> <a class="code" href="classPLDirectFBBmp.html#e2">GetBitsMemNeeded</a>
00101 ( PLLONG width,
00102 PLLONG height,
00103 PLWORD BitsPerPixel
00104 );
00105
00106
00107 <span class="keyword">protected</span>:
00108 <span class="comment">// Local functions</span>
00109
00110 <span class="comment">// Create a new bitmap with uninitialized bits. Assumes no memory</span>
00111 <span class="comment">// is allocated yet.</span>
00112 <span class="keyword">virtual</span> <span class="keywordtype">void</span> internalCreate
00113 ( PLLONG Width,
00114 PLLONG Height,
00115 PLWORD BitsPerPixel,
00116 <span class="keywordtype">bool</span> bAlphaChannel,
00117 <span class="keywordtype">bool</span> bIsGreyscale
00118 );
00119
00120 <span class="comment">// Deletes memory allocated by member variables.</span>
00121 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classPLDirectFBBmp.html#b1">freeMembers</a>
00122 ();
00123
00124 <span class="comment">// Initializes internal table of line addresses.</span>
00125 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classPLDirectFBBmp.html#b2">initLineArray</a>
00126 ();
00127
00128 <span class="keyword">private</span>:
00129 <span class="keyword">static</span> IDirectFB * s_pDirectFB;
00130 IDirectFBSurface * m_pSurface; <span class="comment">// Pointer to the bits.</span>
00131 <span class="keywordtype">bool</span> m_bOwnsSurface;
00132 };
00133
00134 <span class="comment">// Note that _both_ these copy constructors are needed. If only the</span>
00135 <span class="comment">// second one is there, MSVC 6.0 generates a default copy</span>
00136 <span class="comment">// constructor anyway :-(.</span>
00137 <span class="keyword">inline</span> <a class="code" href="classPLDirectFBBmp.html#a0">PLDirectFBBmp::PLDirectFBBmp</a>
<a name="l00138"></a><a class="code" href="classPLDirectFBBmp.html#a3">00138</a> ( <span class="keyword">const</span> <a class="code" href="classPLDirectFBBmp.html">PLDirectFBBmp</a> &Orig
00139 )
00140 : <a class="code" href="classPLBmp.html">PLBmp</a> ()
00141 {
00142 internalCopy (Orig);
00143 }
00144
00145 <span class="keyword">inline</span> <a class="code" href="classPLDirectFBBmp.html#a0">PLDirectFBBmp::PLDirectFBBmp</a>
<a name="l00146"></a><a class="code" href="classPLDirectFBBmp.html#a2">00146</a> ( <span class="keyword">const</span> <a class="code" href="classPLBmp.html">PLBmp</a> &Orig
00147 )
00148 : <a class="code" href="classPLBmp.html">PLBmp</a> ()
00149 {
00150 internalCopy (Orig);
00151 }
00152
00153 <span class="keyword">inline</span> <a class="code" href="classPLDirectFBBmp.html">PLDirectFBBmp</a> & PLDirectFBBmp::operator=
<a name="l00154"></a><a class="code" href="classPLDirectFBBmp.html#a5">00154</a> ( <span class="keyword">const</span> <a class="code" href="classPLBmp.html">PLBmp</a> &Orig
00155 )
00156 {
00157 <a class="code" href="classPLBmp.html#a2">PLBmp::operator=</a>(Orig);
00158 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
00159 }
00160
00161 <span class="keyword">inline</span> <a class="code" href="classPLDirectFBBmp.html">PLDirectFBBmp</a> & PLDirectFBBmp::operator=
<a name="l00162"></a><a class="code" href="classPLDirectFBBmp.html#a6">00162</a> ( <span class="keyword">const</span> <a class="code" href="classPLDirectFBBmp.html">PLDirectFBBmp</a> &Orig
00163 )
00164 {
00165 <a class="code" href="classPLBmp.html#a2">PLBmp::operator=</a>(Orig);
00166 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
00167 }
00168
00169
00170 <span class="preprocessor">#endif</span>
00171 <span class="preprocessor"></span><span class="comment">/*</span>
00172 <span class="comment">/--------------------------------------------------------------------</span>
00173 <span class="comment">|</span>
00174 <span class="comment">| $Log: pldirectfbbmp_8h-source.html,v $
00174 <span class="comment">| Revision 1.4 2004/09/15 15:26:29 uzadow
00174 <span class="comment">| Linux compatibility changes, doc update.
00174 <span class="comment">|</span>
00175 <span class="comment">| Revision 1.4 2004/06/12 14:52:46 uzadow</span>
00176 <span class="comment">| Added CreateFromSurface function.</span>
00177 <span class="comment">|</span>
00178 <span class="comment">| Revision 1.3 2004/06/06 12:56:38 uzadow</span>
00179 <span class="comment">| Doxygenified documentation.</span>
00180 <span class="comment">|</span>
00181 <span class="comment">| Revision 1.2 2004/04/16 20:14:41 uzadow</span>
00182 <span class="comment">| Changes to make cdoc work.</span>
00183 <span class="comment">|</span>
00184 <span class="comment">| Revision 1.1 2003/07/27 13:50:48 uzadow</span>
00185 <span class="comment">| Added support for DirectFB surfaces.</span>
00186 <span class="comment">|</span>
00187 <span class="comment">|</span>
00188 <span class="comment">|</span>
00189 <span class="comment">\--------------------------------------------------------------------</span>
00190 <span class="comment">*/</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Sep 13 16:16:40 2004 for paintlib by
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