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<h1>plddrawbmp.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: plddrawbmp_8h-source.html,v 1.1 2004/07/28 15:15:28 uzadow Exp $</span>
00005 <span class="comment">| Bitmap class using a directdraw surface.</span>
00006 <span class="comment">|</span>
00007 <span class="comment">| Copyright (c) 1996-2002 Ulrich von Zadow</span>
00008 <span class="comment">|</span>
00009 <span class="comment">\--------------------------------------------------------------------</span>
00010 <span class="comment">*/</span>
00011
00012 <span class="preprocessor">#ifndef INCL_DDRAWBMP</span>
00013 <span class="preprocessor"></span><span class="preprocessor">#define INCL_DDRAWBMP</span>
00014 <span class="preprocessor"></span>
00015 <span class="preprocessor">#include "plbitmap.h"</span>
00016
00017 <span class="preprocessor">#include <ddraw.h></span>
00018 <span class="comment"></span>
00019 <span class="comment">//! </span>
00020 <span class="comment"></span><span class="keyword">class </span>PLDDrawBmp : <span class="keyword">public</span> <a class="code" href="classPLBmp.html">PLBmp</a>
00021 {
00022
00023 <span class="keyword">public</span>:<span class="comment"></span>
00024 <span class="comment"> //! Creates an empty bitmap.</span>
00025 <span class="comment"></span> PLDDrawBmp
00026 ( IDirectDraw * pDDraw
00027 );
00028 <span class="comment"></span>
00029 <span class="comment"> //! Destroys the bitmap.</span>
00030 <span class="comment"></span> <span class="keyword">virtual</span> ~PLDDrawBmp
00031 ();
00032
00033 <span class="preprocessor">#ifdef _DEBUG</span>
00034 <span class="preprocessor"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> AssertValid
00035 () <span class="keyword">const</span>; <span class="comment">// Tests internal object state</span>
00036 <span class="preprocessor">#endif</span>
00037 <span class="preprocessor"></span>
00038 <span class="comment">// PLDDrawBmp information</span>
00039 <span class="comment"></span>
00040 <span class="comment"> //! Returns the amount of memory used by the object.</span>
00041 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">long</span> GetMemUsed
00042 ();
00043 <span class="comment"></span>
00044 <span class="comment"> //! Returns number of bytes used per line.</span>
00045 <span class="comment"></span> <span class="keywordtype">long</span> GetBytesPerLine
00046 ();
00047 <span class="comment"></span>
00048 <span class="comment"> //! Returns the size of the bitmap in pixels</span>
00049 <span class="comment"></span> SIZE GetSize
00050 ();
00051 <span class="comment"></span>
00052 <span class="comment"> //! Draws the bitmap.</span>
00053 <span class="comment"></span><span class="comment">// virtual void Blt</span>
00054 <span class="comment">// ();</span>
00055 <span class="comment"></span>
00056 <span class="comment"> //! Locks the DirectDraw surface and fills the line array. GetLineArray() </span>
00057 <span class="comment"> //! returns NULL if the surface isn't locked.</span>
00058 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> Lock
00059 ( <span class="keywordtype">bool</span> bReadable,
00060 <span class="keywordtype">bool</span> bWriteable
00061 );
00062 <span class="comment"></span>
00063 <span class="comment"> //! Unlocks the DirectDraw surface.</span>
00064 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> Unlock
00065 ();
00066 <span class="comment"></span>
00067 <span class="comment"> //! Gets a pointer to the directdraw surface used.</span>
00068 <span class="comment"></span> IDirectDrawSurface * GetSurface
00069 ();
00070
00071 <span class="keyword">protected</span>:
00072
00073 <span class="comment">// Protected callbacks</span>
00074 <span class="comment"></span>
00075 <span class="comment"> //! Create a new empty DIB. Bits are uninitialized.</span>
00076 <span class="comment"> //! Assumes that no memory is allocated before the call.</span>
00077 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classPLBmp.html#b0">internalCreate</a>
00078 ( LONG Width,
00079 LONG Height,
00080 WORD BitsPerPixel,
00081 <span class="keywordtype">bool</span> bAlphaChannel,
00082 <span class="keywordtype">bool</span> bIsGreyscale
00083 );
00084 <span class="comment"></span>
00085 <span class="comment"> //! Deletes memory allocated by member variables.</span>
00086 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> freeMembers
00087 ();
00088 <span class="comment"></span>
00089 <span class="comment"> //! Initializes internal table of line addresses.</span>
00090 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> initLineArray
00091 ();
00092
00093 <span class="comment">// Set color table pointer & pointer to bits</span>
00094 <span class="keyword">virtual</span> <span class="keywordtype">void</span> initPointers
00095 ();
00096
00097 <span class="keyword">private</span>:
00098
00099 <span class="comment">// Member variables.</span>
00100 IDirectDrawSurface * m_pSurface;
00101 DDSURFACEDESC * m_pDDSurfaceDesc;
00102 IDirectDraw * m_pDDraw;
00103 };
00104
00105 <span class="preprocessor">#endif</span>
00106 <span class="preprocessor"></span><span class="comment">/*</span>
00107 <span class="comment">/--------------------------------------------------------------------</span>
00108 <span class="comment">|</span>
00109 <span class="comment">| $Log: plddrawbmp_8h-source.html,v $
00109 <span class="comment">| Revision 1.1 2004/07/28 15:15:28 uzadow
00109 <span class="comment">| Added missing documentation files.
00109 <span class="comment">|</span>
00110 <span class="comment">| Revision 1.3 2002/08/04 20:08:01 uzadow</span>
00111 <span class="comment">| Added PLBmpInfo class, ability to extract metainformation from images without loading the whole image and proper greyscale support.</span>
00112 <span class="comment">|</span>
00113 <span class="comment">| Revision 1.2 2002/03/31 13:36:42 uzadow</span>
00114 <span class="comment">| Updated copyright.</span>
00115 <span class="comment">|</span>
00116 <span class="comment">| Revision 1.1 2001/09/16 19:03:23 uzadow</span>
00117 <span class="comment">| Added global name prefix PL, changed most filenames.</span>
00118 <span class="comment">|</span>
00119 <span class="comment">| Revision 1.1 2000/08/13 12:11:43 Administrator</span>
00120 <span class="comment">| Added experimental DirectDraw-Support</span>
00121 <span class="comment">|</span>
00122 <span class="comment">|</span>
00123 <span class="comment">\--------------------------------------------------------------------</span>
00124 <span class="comment">*/</span>
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