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<h1>plpixel32.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: plpixel32_8h-source.html,v 1.4 2004/09/15 15:26:32 uzadow Exp $</span>
00005 <span class="comment">|</span>
00006 <span class="comment">| Copyright (c) 1996-2002 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_PLPIXEL32</span>
00012 <span class="preprocessor"></span><span class="preprocessor">#define INCL_PLPIXEL32</span>
00013 <span class="preprocessor"></span>
00014 <span class="preprocessor">#include <math.h></span>
00015
00016 <span class="preprocessor">#include "plpixeldefs.h"</span>
00017 <span class="preprocessor">#include "<a class="code" href="plpaintlibdefs_8h.html">plpaintlibdefs.h</a>"</span>
00018 <span class="comment"></span>
00019 <span class="comment">//! 32 bit pixel class. A pixel in this class contains 8 bits each of</span>
00020 <span class="comment">//! red, green, blue and alpha. The order of the color components is</span>
00021 <span class="comment">//! OS-dependent and defined in config.h. This class is meant to be</span>
00022 <span class="comment">//! fast, so all methods are inlined.</span>
<a name="l00023"></a><a class="code" href="classPLPixel32.html">00023</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="classPLPixel32.html">PLPixel32</a>
00024 {
00025 <span class="keyword">public</span>:<span class="comment"></span>
00026 <span class="comment"> //!</span>
00027 <span class="comment"></span> <a class="code" href="classPLPixel32.html">PLPixel32</a> ();<span class="comment"></span>
00028 <span class="comment"> //!</span>
00029 <span class="comment"></span> <a class="code" href="classPLPixel32.html">PLPixel32</a> (PLBYTE r, PLBYTE g, PLBYTE b, PLBYTE a);<span class="comment"></span>
00030 <span class="comment"> //!</span>
00031 <span class="comment"></span> <a class="code" href="classPLPixel32.html">PLPixel32</a> (PLBYTE r, PLBYTE g, PLBYTE b);<span class="comment"></span>
00032 <span class="comment"> //!</span>
00033 <span class="comment"></span> <span class="keywordtype">void</span> Set (PLBYTE r, PLBYTE g, PLBYTE b, PLBYTE a);<span class="comment"></span>
00034 <span class="comment"> //!</span>
00035 <span class="comment"></span> <span class="keywordtype">void</span> Set (PLBYTE r, PLBYTE g, PLBYTE b);<span class="comment"></span>
00036 <span class="comment"> //!</span>
00037 <span class="comment"></span> <span class="keywordtype">void</span> SetR (PLBYTE r);<span class="comment"></span>
00038 <span class="comment"> //!</span>
00039 <span class="comment"></span> <span class="keywordtype">void</span> SetG (PLBYTE g);<span class="comment"></span>
00040 <span class="comment"> //!</span>
00041 <span class="comment"></span> <span class="keywordtype">void</span> SetB (PLBYTE b);<span class="comment"></span>
00042 <span class="comment"> //!</span>
00043 <span class="comment"></span> <span class="keywordtype">void</span> SetA (PLBYTE a);<span class="comment"></span>
00044 <span class="comment"> //!</span>
00045 <span class="comment"></span> PLBYTE GetR () <span class="keyword">const</span>;<span class="comment"></span>
00046 <span class="comment"> //!</span>
00047 <span class="comment"></span> PLBYTE GetG () <span class="keyword">const</span>;<span class="comment"></span>
00048 <span class="comment"> //!</span>
00049 <span class="comment"></span> PLBYTE GetB () <span class="keyword">const</span>;<span class="comment"></span>
00050 <span class="comment"> //!</span>
00051 <span class="comment"></span> PLBYTE GetA () <span class="keyword">const</span>;
00052 <span class="comment"></span>
00053 <span class="comment"> //!</span>
00054 <span class="comment"></span> <span class="keywordtype">bool</span> operator ==(<span class="keyword">const</span> <a class="code" href="classPLPixel32.html">PLPixel32</a> Pix) <span class="keyword">const</span>;
00055 <span class="comment"></span>
00056 <span class="comment"> //!</span>
00057 <span class="comment"></span> <span class="keywordtype">bool</span> operator !=(<span class="keyword">const</span> <a class="code" href="classPLPixel32.html">PLPixel32</a> Pix) <span class="keyword">const</span>;
00058 <span class="comment"></span>
00059 <span class="comment"> //! Simple and fast 'distance' between two pixels. Just adds the</span>
00060 <span class="comment"> //! distances between the color components and treats colors</span>
00061 <span class="comment"> //! equally.</span>
00062 <span class="comment"></span> <span class="keywordtype">int</span> <a class="code" href="classPLPixel32.html#a15">BoxDist</a> (<span class="keyword">const</span> <a class="code" href="classPLPixel32.html">PLPixel32</a> Pix) <span class="keyword">const</span>;
00063 <span class="comment"></span>
00064 <span class="comment"> //! Returns a weighed average between two pixels. Factor must be </span>
00065 <span class="comment"> //! between 0 and 256. Factor=256 means Pix1 is the result, Factor=0 </span>
00066 <span class="comment"> //! means Pix2 is the result.</span>
00067 <span class="comment"></span> <span class="keyword">static</span> <a class="code" href="classPLPixel32.html">PLPixel32</a> <a class="code" href="classPLPixel32.html#e0">Blend</a> (<span class="keywordtype">int</span> Factor, <span class="keyword">const</span> <a class="code" href="classPLPixel32.html">PLPixel32</a> Pix1,
00068 <span class="keyword">const</span> <a class="code" href="classPLPixel32.html">PLPixel32</a> Pix2);
00069
00070 <span class="keyword">private</span>:
00071 PLBYTE m_Data[4];
00072 };
00073
00074 <span class="keyword">inline</span> PLPixel32::PLPixel32()
00075 {
00076 }
00077
00078
00079 <span class="keyword">inline</span> PLPixel32::PLPixel32(PLBYTE r, PLBYTE g, PLBYTE b, PLBYTE a)
00080 {
00081 Set (r, g, b, a);
00082 }
00083
00084
00085 <span class="keyword">inline</span> PLPixel32::PLPixel32(PLBYTE r, PLBYTE g, PLBYTE b)
00086 {
00087 Set (r, g, b, 255);
00088 }
00089
00090
00091 <span class="keyword">inline</span> <span class="keywordtype">void</span> PLPixel32::Set(PLBYTE r, PLBYTE g, PLBYTE b, PLBYTE a)
00092 {
00093 m_Data[PL_RGBA_RED] = r;
00094 m_Data[PL_RGBA_GREEN] = g;
00095 m_Data[PL_RGBA_BLUE] = b;
00096 m_Data[PL_RGBA_ALPHA] = a;
00097 }
00098 <span class="comment"></span>
00099 <span class="comment">//!</span>
00100 <span class="comment"></span><span class="keyword">inline</span> <span class="keywordtype">void</span> PLPixel32::Set (PLBYTE r, PLBYTE g, PLBYTE b)
00101 {
00102 m_Data[PL_RGBA_RED] = r;
00103 m_Data[PL_RGBA_GREEN] = g;
00104 m_Data[PL_RGBA_BLUE] = b;
00105 }
00106
00107 <span class="keyword">inline</span> <span class="keywordtype">void</span> PLPixel32::SetR(PLBYTE r)
00108 {
00109 m_Data[PL_RGBA_RED] = r;
00110 }
00111
00112
00113 <span class="keyword">inline</span> <span class="keywordtype">void</span> PLPixel32::SetG(PLBYTE g)
00114 {
00115 m_Data[PL_RGBA_GREEN] = g;
00116 }
00117
00118
00119 <span class="keyword">inline</span> <span class="keywordtype">void</span> PLPixel32::SetB(PLBYTE b)
00120 {
00121 m_Data[PL_RGBA_BLUE] = b;
00122 }
00123
00124
00125 <span class="keyword">inline</span> <span class="keywordtype">void</span> PLPixel32::SetA(PLBYTE a)
00126 {
00127 m_Data[PL_RGBA_ALPHA] = a;
00128 }
00129
00130
00131 <span class="keyword">inline</span> PLBYTE PLPixel32::GetR()<span class="keyword"> const</span>
00132 <span class="keyword"></span>{
00133 <span class="keywordflow">return</span> m_Data[PL_RGBA_RED];
00134 }
00135
00136
00137 <span class="keyword">inline</span> PLBYTE PLPixel32::GetG()<span class="keyword"> const</span>
00138 <span class="keyword"></span>{
00139 <span class="keywordflow">return</span> m_Data[PL_RGBA_GREEN];
00140 }
00141
00142
00143 <span class="keyword">inline</span> PLBYTE PLPixel32::GetB()<span class="keyword"> const</span>
00144 <span class="keyword"></span>{
00145 <span class="keywordflow">return</span> m_Data[PL_RGBA_BLUE];
00146 }
00147
00148
00149 <span class="keyword">inline</span> PLBYTE PLPixel32::GetA()<span class="keyword"> const</span>
00150 <span class="keyword"></span>{
00151 <span class="keywordflow">return</span> m_Data[PL_RGBA_ALPHA];
00152 }
00153
<a name="l00154"></a><a class="code" href="classPLPixel32.html#a15">00154</a> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="classPLPixel32.html#a15">PLPixel32::BoxDist</a> (<span class="keyword">const</span> <a class="code" href="classPLPixel32.html">PLPixel32</a> Pix)<span class="keyword"> const</span>
00155 <span class="keyword"></span>{
00156 <span class="keywordflow">return</span> (abs ((<span class="keywordtype">int</span>)GetR()-Pix.<a class="code" href="classPLPixel32.html#a9">GetR</a>()) +
00157 abs ((<span class="keywordtype">int</span>)GetG()-Pix.<a class="code" href="classPLPixel32.html#a10">GetG</a>()) +
00158 abs ((<span class="keywordtype">int</span>)GetB()-Pix.<a class="code" href="classPLPixel32.html#a11">GetB</a>()));
00159 }
00160
<a name="l00161"></a><a class="code" href="classPLPixel32.html#e0">00161</a> <span class="keyword">inline</span> <a class="code" href="classPLPixel32.html">PLPixel32</a> <a class="code" href="classPLPixel32.html#e0">PLPixel32::Blend</a> (<span class="keywordtype">int</span> Factor, <span class="keyword">const</span> <a class="code" href="classPLPixel32.html">PLPixel32</a> Pix1, <span class="keyword">const</span> <a class="code" href="classPLPixel32.html">PLPixel32</a> Pix2)
00162 {
00163 PLASSERT (Factor >= 0 && Factor <= 256);
00164
00165 <span class="keywordflow">return</span> <a class="code" href="classPLPixel32.html">PLPixel32</a> ((Pix1.<a class="code" href="classPLPixel32.html#a9">GetR</a>()*Factor+Pix2.<a class="code" href="classPLPixel32.html#a9">GetR</a>()*(256-Factor))>>8,
00166 (Pix1.<a class="code" href="classPLPixel32.html#a10">GetG</a>()*Factor+Pix2.<a class="code" href="classPLPixel32.html#a10">GetG</a>()*(256-Factor))>>8,
00167 (Pix1.<a class="code" href="classPLPixel32.html#a11">GetB</a>()*Factor+Pix2.<a class="code" href="classPLPixel32.html#a11">GetB</a>()*(256-Factor))>>8,
00168 Pix1.<a class="code" href="classPLPixel32.html#a12">GetA</a>());
00169 }
00170
00171 <span class="keyword">inline</span> <span class="keywordtype">bool</span> PLPixel32::operator ==(<span class="keyword">const</span> <a class="code" href="classPLPixel32.html">PLPixel32</a> Pix)<span class="keyword"> const</span>
00172 <span class="keyword"></span>{
00173 <span class="keywordflow">return</span> (*(<span class="keyword">const</span> PLLONG *)<span class="keyword">this</span> == *(<span class="keyword">const</span> PLLONG*)&Pix);
00174 }
00175
00176 <span class="keyword">inline</span> <span class="keywordtype">bool</span> PLPixel32::operator !=(<span class="keyword">const</span> <a class="code" href="classPLPixel32.html">PLPixel32</a> Pix)<span class="keyword"> const</span>
00177 <span class="keyword"></span>{
00178 <span class="keywordflow">return</span> (!(*<span class="keyword">this</span> == Pix));
00179 }
00180
00181
00182 <span class="preprocessor">#endif</span>
00183 <span class="preprocessor"></span>
00184 <span class="comment">/*</span>
00185 <span class="comment">/--------------------------------------------------------------------</span>
00186 <span class="comment">|</span>
00187 <span class="comment">| $Log: plpixel32_8h-source.html,v $
00187 <span class="comment">| Revision 1.4 2004/09/15 15:26:32 uzadow
00187 <span class="comment">| Linux compatibility changes, doc update.
00187 <span class="comment">|</span>
00188 <span class="comment">| Revision 1.7 2002/08/04 20:08:01 uzadow</span>
00189 <span class="comment">| Added PLBmpInfo class, ability to extract metainformation from images without loading the whole image and proper greyscale support.</span>
00190 <span class="comment">|</span>
00191 <span class="comment">| Revision 1.6 2002/03/31 13:36:42 uzadow</span>
00192 <span class="comment">| Updated copyright.</span>
00193 <span class="comment">|</span>
00194 <span class="comment">| Revision 1.5 2001/10/21 17:12:40 uzadow</span>
00195 <span class="comment">| Added PSD decoder beta, removed BPPWanted from all decoders, added PLFilterPixel.</span>
00196 <span class="comment">|</span>
00197 <span class="comment">| Revision 1.4 2001/10/06 22:03:26 uzadow</span>
00198 <span class="comment">| Added PL prefix to basic data types.</span>
00199 <span class="comment">|</span>
00200 <span class="comment">| Revision 1.3 2001/09/28 19:50:56 uzadow</span>
00201 <span class="comment">| Added some 24 bpp stuff & other minor features.</span>
00202 <span class="comment">|</span>
00203 <span class="comment">| Revision 1.2 2001/09/24 14:13:18 uzadow</span>
00204 <span class="comment">| Added Blend, improved const-correctness.</span>
00205 <span class="comment">|</span>
00206 <span class="comment">| Revision 1.1 2001/09/16 19:03:22 uzadow</span>
00207 <span class="comment">| Added global name prefix PL, changed most filenames.</span>
00208 <span class="comment">|</span>
00209 <span class="comment">| Revision 1.3 2001/09/15 14:30:20 uzadow</span>
00210 <span class="comment">| Fixed PLPixel32 initialization bug.</span>
00211 <span class="comment">|</span>
00212 <span class="comment">| Revision 1.2 2001/09/13 20:45:35 uzadow</span>
00213 <span class="comment">| Added 8-bpp pixel class.</span>
00214 <span class="comment">|</span>
00215 <span class="comment">| Revision 1.1 2000/12/18 22:42:52 uzadow</span>
00216 <span class="comment">| Replaced RGBAPIXEL with PLPixel32.</span>
00217 <span class="comment">|</span>
00218 <span class="comment">|</span>
00219 <span class="comment">\--------------------------------------------------------------------</span>
00220 <span class="comment">*/</span>
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