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<hr><h1>rgba.cpp</h1><a href="rgba_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 
00007 <font class="comment">/* Copyright, 2000 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025 
00026 <font class="preprocessor">#include "<a class="code" href="stdmisc_8h.html">stdmisc.h</a>"</font>
00027 
00028 <font class="preprocessor">#include "<a class="code" href="rgba_8h.html">nel/misc/rgba.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="stream_8h.html">nel/misc/stream.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="system__info_8h.html">nel/misc/system_info.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="common_8h.html">nel/misc/common.h</a>"</font>
00032 
00033 
00034 <font class="keyword">namespace </font>NLMISC {
00035 
00036 
00037 <font class="comment">//#define DISABLE_MMX_OPTIM</font>
00038 
00039 <font class="comment">// ***************************************************************************</font>
00040 <font class="comment">// ***************************************************************************</font>
00041 <font class="comment">// CRGBA</font>
00042 <font class="comment">// ***************************************************************************</font>
00043 <font class="comment">// ***************************************************************************</font>
00044 
00045 <font class="comment">// predifined colors</font>
00046 
00048     <font class="keyword">const</font> CRGBA CRGBA::Black(0, 0, 0) ;
00049         <font class="keyword">const</font> CRGBA CRGBA::Red(255, 0, 0) ;
00050         <font class="keyword">const</font> CRGBA CRGBA::Green(0, 255, 0) ;
00051         <font class="keyword">const</font> CRGBA CRGBA::Yellow(255, 255, 0) ;
00052         <font class="keyword">const</font> CRGBA CRGBA::Blue(0, 0, 255) ;
00053         <font class="keyword">const</font> CRGBA CRGBA::Magenta(255, 0, 255) ;
00054         <font class="keyword">const</font> CRGBA CRGBA::Cyan(0, 255, 255) ;
00055         <font class="keyword">const</font> CRGBA CRGBA::White(255, 255, 255) ;
00056 
00057 <font class="comment">// ***************************************************************************</font>
<a name="l00058"></a><a class="code" href="classNLMISC_1_1CRGBA.html#a6">00058</a> <font class="keywordtype">void</font> CRGBA::serial(<font class="keyword">class</font> <a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &amp;f)
00059 {
00060         f.serial (<a class="code" href="classNLMISC_1_1CRGBA.html#m0">R</a>);
00061         f.serial (<a class="code" href="classNLMISC_1_1CRGBA.html#m1">G</a>);
00062         f.serial (<a class="code" href="classNLMISC_1_1CRGBA.html#m2">B</a>);
00063         f.serial (<a class="code" href="classNLMISC_1_1CRGBA.html#m3">A</a>);
00064 }
00065 <font class="comment">// ***************************************************************************</font>
<a name="l00066"></a><a class="code" href="classNLMISC_1_1CRGBA.html#a10">00066</a> <font class="keywordtype">void</font> CRGBA::set(uint8 <a class="code" href="driver__opengl__extension__def_8h.html#a385">r</a>, uint8 g, uint8 b, uint8 a)
00067 {
00068         <a class="code" href="classNLMISC_1_1CRGBA.html#m0">R</a> = <a class="code" href="driver__opengl__extension__def_8h.html#a385">r</a>;
00069         <a class="code" href="classNLMISC_1_1CRGBA.html#m1">G</a> = g;
00070         <a class="code" href="classNLMISC_1_1CRGBA.html#m2">B</a> = b;
00071         <a class="code" href="classNLMISC_1_1CRGBA.html#m3">A</a> = a;
00072 }
00073 
00074 <font class="preprocessor">#ifdef  NL_OS_WINDOWS</font>
00075 <font class="preprocessor"></font><font class="preprocessor">        #pragma warning(disable : 4731) </font><font class="comment">/* frame pointer register 'ebp' modified by inline assembly code */</font>
00076 <font class="preprocessor">#endif</font>
00077 <font class="preprocessor"></font>
00078 <font class="comment">// ***************************************************************************</font>
<a name="l00079"></a><a class="code" href="classNLMISC_1_1CRGBA.html#z322_0">00079</a> <font class="keywordtype">void</font> CRGBA::addColors(CRGBA *dest, <font class="keyword">const</font> CRGBA *src1, <font class="keyword">const</font> CRGBA *src2, uint numColors, uint srcStride, uint destStride, uint dup)
00080 {
00081         <font class="keywordflow">if</font> (numColors == 0) <font class="keywordflow">return</font>;
00082 <font class="preprocessor">        #if     defined(NL_OS_WINDOWS) &amp;&amp; !defined(DISABLE_MMX_OPTIM)</font>
00083 <font class="preprocessor"></font>        <font class="keywordflow">if</font> (!CSystemInfo::hasMMX())
00084 <font class="preprocessor">        #endif</font>
00085 <font class="preprocessor"></font>        {   <font class="comment">// unoptimized version</font>
00086                 <font class="keywordflow">if</font> (dup == 1)
00087                 {
00088                         <font class="keywordflow">while</font> (numColors--)
00089                         {
00090                                 dest-&gt;add(*src1, *src2);
00091                                 dest = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride);
00092                                 src1 = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) src1 + srcStride);
00093                                 src2 = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) src2 + srcStride);
00094                         }
00095                 }
00096                 <font class="keywordflow">else</font>
00097                 {
00098                         <font class="keywordflow">if</font> (dup == 4) <font class="comment">// optimisation for the 4 case</font>
00099                         {
00100                                 <font class="keywordflow">while</font> (numColors--)
00101                                 {
00102                                         dest-&gt;add(*src1, *src2);
00103                                         * (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride) = *dest;
00104                                         dest = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride);
00105                                         * (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride) = *dest;
00106                                         dest = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride);
00107                                         * (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride) = *dest;
00108                                         dest = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + (destStride &lt;&lt; 1));
00109 
00110                                         src1 = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) src1 + srcStride);                                                                                                  
00111                                         src2 = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) src2 + srcStride);
00112                                 }
00113                         }
00114                         <font class="keywordflow">else</font>
00115                         {
00116                                 <font class="keywordflow">while</font> (numColors--)
00117                                 {
00118                                         dest-&gt;add(*src1, *src2);
00119 
00120                                         uint k = dup - 1;
00121                                         <font class="keywordflow">do</font>
00122                                         {
00123                                                 * (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride) = *dest;
00124                                                 dest = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride);
00125                                         }
00126                                         <font class="keywordflow">while</font> (--k);
00127                                         
00128                                         dest = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride);
00129                                         src1 = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) src1 + srcStride);                                                                                                  
00130                                         src2 = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) src2 + srcStride);
00131                                 }
00132                         }
00133                 }
00134         }
00135 <font class="preprocessor">        #if     defined(NL_OS_WINDOWS) &amp;&amp; !defined(DISABLE_MMX_OPTIM)</font>
00136 <font class="preprocessor"></font>        <font class="keywordflow">else</font> <font class="comment">// optimized mmx version</font>
00137         {       
00139                 <font class="keywordflow">if</font> (dup == 1)
00140                 {
00141                         __asm
00142                         {
00143                                                 push        ebp                                         
00144                                                 mov                     edi, dest
00145                                                 mov                     esi, src1
00146                                                 mov                     ebx, src2
00147                                                 <a class="code" href="classNLMISC_1_1CRGBA.html#a16">sub</a>                     ebx, esi  ; <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a> to source 2
00148                                                 mov                     ecx, numColors
00149                                                 mov         edx, destStride
00150                                                 mov         ebp, srcStride
00151                                                 <a class="code" href="classNLMISC_1_1CRGBA.html#a16">sub</a>         edi, edx
00152                                 myLoop:                                                                                         
00153                                                 movd        mm0, [esi]
00154                                                 <a class="code" href="classNLMISC_1_1CRGBA.html#a15">add</a>         edi, edx
00155                                                 movd        mm1, [esi + ebx]
00156                                                 paddusb     mm0, mm1
00157                                                 movd        [edi], mm0
00158                                                 <a class="code" href="classNLMISC_1_1CRGBA.html#a15">add</a>         esi, ebp                                            
00159                                                 dec                     ecx
00160                                                 jne         myLoop                      
00161                                                 pop                     ebp
00162                                                 emms
00163                         }
00164                 }
00165                 <font class="keywordflow">else</font>
00166                 {
00167                         <font class="keywordflow">if</font> (dup == 4)
00168                         {
00169                                 __asm
00170                                 {
00171                                                         push        ebp
00172                                                         mov                     edi, dest
00173                                                         mov                     esi, src1
00174                                                         mov                     ebx, src2
00175                                                         <a class="code" href="classNLMISC_1_1CRGBA.html#a16">sub</a>                     ebx, esi  ; <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a> to source 2
00176                                                         mov                     ecx, numColors
00177                                                         mov         edx, destStride
00178                                                         mov         ebp, srcStride
00179                                         myLoop4:                                                        
00180                                                         movd        mm0, [esi]                                                  
00181                                                         movd        mm1, [esi + ebx]
00182                                                         paddusb     mm0, mm1
00183                                                         movd        eax, mm0
00184                                                         
00185                                                         mov         [edi], eax                  
00186                                                         mov         [edi + edx], eax
00187                                                         mov         [edi + 2 * edx], eax
00188                                                         lea         edi, [edi + edx * 2]
00189                                                         mov         [edi + edx], eax
00190                                                         lea         edi, [edi + edx * 2]                                                
00191                                                         <a class="code" href="classNLMISC_1_1CRGBA.html#a15">add</a>         esi, ebp
00192 
00193                                                         dec         ecx
00194                                                         jne         myLoop4                                     
00195                                                         pop                     ebp
00196                                                         emms
00197                                 }
00198                         }
00199                         <font class="keywordflow">else</font>
00200                         {
00201                                 __asm
00202                                 {
00203                                                         push        ebp
00204                                                         mov                     edi, dest
00205                                                         mov                     esi, src1
00206                                                         mov                     ebx, src2
00207                                                         <a class="code" href="classNLMISC_1_1CRGBA.html#a16">sub</a>                     ebx, esi  ; <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a> to source 2
00208                                                         mov                     ecx, numColors
00209                                                         mov         edx, destStride
00210                                                         mov         eax, dup
00211                                                         mov         ebp, srcStride
00212                                                         push        eax
00213                                         myLoopN:                                                                                                
00214                                                         movd        mm0, [esi]                                                  
00215                                                         movd        mm1, [esi + ebx]
00216                                                         push        ecx
00217                                                         paddusb     mm0, mm1
00218                                                         mov         ecx, 4[esp]
00219                                                         movd        eax, mm0
00220                                         dupLoopN:
00221                                                         mov         [edi], eax
00222                                                         dec         ecx
00223                                                         lea         edi, [edi + edx]
00224                                                         jne                 dupLoopN
00225                                                         pop         ecx                 ; get back the loop counter                                                     
00226                                                         <a class="code" href="classNLMISC_1_1CRGBA.html#a15">add</a>         esi, ebp 
00227                                                         dec         ecx
00228                                                         jne         myLoopN                                     
00229                                                         pop eax
00230                                                         pop     ebp
00231                                                         emms
00232                                 }
00233                         }
00234                 }
00235         }
00236 <font class="preprocessor">        #endif</font>
00237 <font class="preprocessor"></font>}
00238 <font class="comment">// ***************************************************************************</font>
<a name="l00239"></a><a class="code" href="classNLMISC_1_1CRGBA.html#z322_1">00239</a> <font class="keywordtype">void</font> CRGBA::modulateColors(CRGBA *dest, <font class="keyword">const</font> CRGBA *src1, <font class="keyword">const</font> CRGBA *src2, uint numColors, uint srcStride, uint destStride, uint dup)
00240 {
00241 <font class="preprocessor">        #if     defined(NL_OS_WINDOWS) &amp;&amp; !defined(DISABLE_MMX_OPTIM)</font>
00242 <font class="preprocessor"></font>        <font class="keywordflow">if</font> (!CSystemInfo::hasMMX())
00243 <font class="preprocessor">        #endif</font>
00244 <font class="preprocessor"></font>        {   <font class="comment">// unoptimized version</font>
00245                 <font class="keywordflow">if</font> (dup == 1)
00246                 {
00247                         <font class="keywordflow">while</font> (numColors--)
00248                         {
00249                                 dest-&gt;modulateFromColor(*src1, *src2);
00250                                 dest = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride);
00251                                 src1 = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) src1 + srcStride);
00252                                 src2 = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) src2 + srcStride);
00253                         }
00254                 }
00255                 <font class="keywordflow">else</font>
00256                 {
00257                         <font class="keywordflow">if</font> (dup == 4) <font class="comment">// optimisation for the 4 case</font>
00258                         {
00259                                 <font class="keywordflow">while</font> (numColors--)
00260                                 {
00261                                         dest-&gt;modulateFromColor(*src1, *src2);
00262                                         * (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride) = *dest;
00263                                         dest = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride);
00264                                         * (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride) = *dest;
00265                                         dest = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride);
00266                                         * (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride) = *dest;
00267                                         dest = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + (destStride &lt;&lt; 1));
00268 
00269                                         src1 = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) src1 + srcStride);                                                                                                  
00270                                         src2 = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) src2 + srcStride);
00271                                 }
00272                         }
00273                         <font class="keywordflow">else</font>
00274                         {
00275                                 <font class="keywordflow">while</font> (numColors--)
00276                                 {
00277                                         dest-&gt;modulateFromColor(*src1, *src2);
00278 
00279                                         uint k = dup - 1;
00280                                         <font class="keywordflow">do</font>
00281                                         {
00282                                                 * (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride) = *dest;
00283                                                 dest = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride);
00284                                         }
00285                                         <font class="keywordflow">while</font> (--k);
00286                                         
00287                                         dest = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride);
00288                                         src1 = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) src1 + srcStride);                                                                                                  
00289                                         src2 = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) src2 + srcStride);
00290                                 }
00291                         }
00292                 }
00293         }
00294 <font class="preprocessor">        #if     defined(NL_OS_WINDOWS) &amp;&amp; !defined(DISABLE_MMX_OPTIM)</font>
00295 <font class="preprocessor"></font>        <font class="keywordflow">else</font> <font class="comment">// optimized mmx version</font>
00296         {       
00297                 uint64 blank = 0;
00299                 <font class="keywordflow">if</font> (dup == 1)
00300                 {                       __asm
00301                         {
00302                                                 push        ebp
00303                                                 movq         mm2, blank
00304                                                 mov                     edi, dest
00305                                                 mov                     esi, src1
00306                                                 mov                     ebx, src2
00307                                                 <a class="code" href="classNLMISC_1_1CRGBA.html#a16">sub</a>                     ebx, esi  ; <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a> to source 2
00308                                                 mov                     ecx, numColors
00309                                                 mov         edx, destStride
00310                                                 mov         ebp, srcStride
00311                                 myLoop:                                                                                         
00312                                                 movd                    mm0, [esi]                                                                                              
00313                                                 movd                    mm1, [esi + ebx]
00314                                                 punpcklbw       mm0, mm2
00315                                                 punpcklbw       mm1, mm2                                                
00316                                                 pmullw          mm0, mm1
00317                                                 psrlw       mm0, 8
00318                                                 packuswb    mm0, mm0
00319                                                 movd        [edi], mm0                                          
00320                                                 <a class="code" href="classNLMISC_1_1CRGBA.html#a15">add</a>         edi, edx
00321                                                 <a class="code" href="classNLMISC_1_1CRGBA.html#a15">add</a>         esi, ebp 
00322 
00323                                                 dec         ecx
00324                                                 jne         myLoop                              
00325                                                 pop                     ebp
00326                                                 emms
00327                         }
00328                 }
00329                 <font class="keywordflow">else</font>
00330                 {
00331                         <font class="keywordflow">if</font> (dup == 4)                   
00332                         {
00333                                 
00334                                 __asm
00335                                 {
00336                                                         push        ebp
00337                                                         movq        mm2, blank
00338                                                         mov                     edi, dest
00339                                                         mov                     esi, src1
00340                                                         mov                     ebx, src2
00341                                                         <a class="code" href="classNLMISC_1_1CRGBA.html#a16">sub</a>                     ebx, esi  ; <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a> to source 2
00342                                                         mov                     ecx, numColors
00343                                                         mov         edx, destStride
00344                                                         mov         ebp, srcStride
00345                                         myLoop4:
00346                                                         movd            mm0, [esi]                                                                                              
00347                                                         movd            mm1, [esi + ebx]
00348                                                         punpcklbw       mm0, mm2
00349                                                         punpcklbw       mm1, mm2                                                
00350                                                         pmullw          mm0, mm1
00351                                                         psrlw       mm0, 8
00352                                                         packuswb    mm0, mm0
00353                                                         movd        eax, mm0
00354                                                         ; duplicate the result 4 times
00355                                                         mov         [edi], eax                  
00356                                                         mov         [edi + edx], eax
00357                                                         mov         [edi + 2 * edx], eax
00358                                                         lea         edi, [edi +  2 * edx]
00359                                                         mov         [edi + edx], eax
00360                                                         lea         edi, [edi + 2 * edx]
00361                                                         <a class="code" href="classNLMISC_1_1CRGBA.html#a15">add</a>         esi, ebp 
00362                                                         dec         ecx
00363                                                         jne         myLoop4                             
00364                                                         pop                     ebp
00365                                                         emms
00366                                 }
00367                         }
00368                         <font class="keywordflow">else</font>
00369                         {
00370                                 __asm
00371                                 {
00372                                                         push        ebp
00373                                                         mov                     edi, dest
00374                                                         mov                     esi, src1
00375                                                         mov                     ebx, src2
00376                                                         <a class="code" href="classNLMISC_1_1CRGBA.html#a16">sub</a>                     ebx, esi  ; <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a> to source 2
00377                                                         mov                     ecx, numColors
00378                                                         mov         edx, destStride
00379                                                         mov         eax, dup
00380                                                         mov         ebp, srcStride
00381                                                         push        eax
00382                                         myLoopN:
00383                                                         movd            mm0, [esi]                                                                                              
00384                                                         movd            mm1, [esi + ebx]
00385                                                         punpcklbw       mm0, mm2
00386                                                         punpcklbw       mm1, mm2                                                
00387                                                         pmullw          mm0, mm1
00388                                                         push        ecx
00389                                                         psrlw       mm0, 8
00390                                                         mov         ecx, 4[esp] 
00391                                                         packuswb    mm0, mm0
00392                                                         movd        eax, mm0
00393                                         dupLoopN:
00394                                                         mov         [edi], eax
00395                                                         dec         ecx
00396                                                         lea         edi, [edi + edx]
00397                                                         jne                 dupLoopN
00398                                                         pop         ecx                 ; get back the loop counter
00399                                                         <a class="code" href="classNLMISC_1_1CRGBA.html#a15">add</a>         esi, ebp
00400                                                         dec         ecx
00401                                                         jne         myLoopN                                     
00402                                                         pop eax
00403                                                         pop                     ebp
00404                                                         emms
00405                                 }
00406                         }
00407                 }
00408         }
00409 <font class="preprocessor">        #endif</font>
00410 <font class="preprocessor"></font>}
00411 <font class="comment">// ***************************************************************************</font>
<a name="l00412"></a><a class="code" href="classNLMISC_1_1CRGBA.html#z322_2">00412</a> <font class="keywordtype">void</font> CRGBA::subtractColors(CRGBA *dest, <font class="keyword">const</font> CRGBA *src1, <font class="keyword">const</font> CRGBA *src2, uint numColors, uint srcStride, uint destStride, uint dup)
00413 {
00414         <font class="keywordflow">if</font> (numColors == 0) <font class="keywordflow">return</font>;
00415 <font class="preprocessor">        #if     defined(NL_OS_WINDOWS) &amp;&amp; !defined(DISABLE_MMX_OPTIM)</font>
00416 <font class="preprocessor"></font>        <font class="keywordflow">if</font> (!CSystemInfo::hasMMX())
00417 <font class="preprocessor">        #endif</font>
00418 <font class="preprocessor"></font>        {   <font class="comment">// unoptimized version</font>
00419                 <font class="keywordflow">if</font> (dup == 1)
00420                 {
00421                         <font class="keywordflow">while</font> (numColors--)
00422                         {
00423                                 dest-&gt;sub(*src1, *src2);
00424                                 dest = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride);
00425                                 src1 = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) src1 + srcStride);
00426                                 src2 = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) src2 + srcStride);
00427                         }
00428                 }
00429                 <font class="keywordflow">else</font>
00430                 {
00431                         <font class="keywordflow">if</font> (dup == 4) <font class="comment">// optimisation for the 4 case</font>
00432                         {
00433                                 <font class="keywordflow">while</font> (numColors--)
00434                                 {
00435                                         dest-&gt;sub(*src1, *src2);
00436                                         * (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride) = *dest;
00437                                         dest = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride);
00438                                         * (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride) = *dest;
00439                                         dest = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride);
00440                                         * (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride) = *dest;
00441                                         dest = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + (destStride &lt;&lt; 1));
00442 
00443                                         src1 = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) src1 + srcStride);                                                                                                  
00444                                         src2 = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) src2 + srcStride);
00445                                 }
00446                         }
00447                         <font class="keywordflow">else</font>
00448                         {
00449                                 <font class="keywordflow">while</font> (numColors--)
00450                                 {
00451                                         dest-&gt;sub(*src1, *src2);
00452 
00453                                         uint k = dup - 1;
00454                                         <font class="keywordflow">do</font>
00455                                         {
00456                                                 * (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride) = *dest;
00457                                                 dest = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride);
00458                                         }
00459                                         <font class="keywordflow">while</font> (--k);
00460                                         
00461                                         dest = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) dest + destStride);
00462                                         src1 = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) src1 + srcStride);                                                                                                  
00463                                         src2 = (<a class="code" href="classNLMISC_1_1CRGBA.html#a0">CRGBA</a> *) ((uint8 *) src2 + srcStride);
00464                                 }
00465                         }
00466                 }
00467         }
00468 <font class="preprocessor">        #if     defined(NL_OS_WINDOWS) &amp;&amp; !defined(DISABLE_MMX_OPTIM)</font>
00469 <font class="preprocessor"></font>        <font class="keywordflow">else</font> <font class="comment">// optimized mmx version</font>
00470         {       
00472                 <font class="keywordflow">if</font> (dup == 1)
00473                 {
00474                         __asm
00475                         {
00476                                                 push        ebp                                         
00477                                                 mov                     edi, dest
00478                                                 mov                     esi, src1
00479                                                 mov                     ebx, src2
00480                                                 <a class="code" href="classNLMISC_1_1CRGBA.html#a16">sub</a>                     ebx, esi  ; <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a> to source 2
00481                                                 mov                     ecx, numColors
00482                                                 mov         edx, destStride
00483                                                 mov         ebp, srcStride
00484                                                 <a class="code" href="classNLMISC_1_1CRGBA.html#a16">sub</a>         edi, edx
00485                                 myLoop:                                                                                         
00486                                                 movd        mm0, [esi]
00487                                                 <a class="code" href="classNLMISC_1_1CRGBA.html#a15">add</a>         edi, edx
00488                                                 movd        mm1, [esi + ebx]
00489                                                 psubusb     mm0, mm1
00490                                                 movd        [edi], mm0
00491                                                 <a class="code" href="classNLMISC_1_1CRGBA.html#a15">add</a>         esi, ebp                                            
00492                                                 dec                     ecx
00493                                                 jne         myLoop                      
00494                                                 pop                     ebp
00495                                                 emms
00496                         }
00497                 }
00498                 <font class="keywordflow">else</font>
00499                 {
00500                         <font class="keywordflow">if</font> (dup == 4)
00501                         {
00502                                 __asm
00503                                 {
00504                                                         push        ebp
00505                                                         mov                     edi, dest
00506                                                         mov                     esi, src1
00507                                                         mov                     ebx, src2
00508                                                         <a class="code" href="classNLMISC_1_1CRGBA.html#a16">sub</a>                     ebx, esi  ; <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a> to source 2
00509                                                         mov                     ecx, numColors
00510                                                         mov         edx, destStride
00511                                                         mov         ebp, srcStride
00512                                         myLoop4:                                                        
00513                                                         movd        mm0, [esi]                                                  
00514                                                         movd        mm1, [esi + ebx]
00515                                                         psubusb     mm0, mm1
00516                                                         movd        eax, mm0
00517                                                         
00518                                                         mov         [edi], eax                  
00519                                                         mov         [edi + edx], eax
00520                                                         mov         [edi + 2 * edx], eax
00521                                                         lea         edi, [edi + edx * 2]
00522                                                         mov         [edi + edx], eax
00523                                                         lea         edi, [edi + edx * 2]                                                
00524                                                         <a class="code" href="classNLMISC_1_1CRGBA.html#a15">add</a>         esi, ebp
00525 
00526                                                         dec         ecx
00527                                                         jne         myLoop4
00528                                                         pop                     ebp
00529                                                         emms
00530                                 }
00531                         }
00532                         <font class="keywordflow">else</font>
00533                         {
00534                                 __asm
00535                                 {
00536                                                         push        ebp
00537                                                         mov                     edi, dest
00538                                                         mov                     esi, src1
00539                                                         mov                     ebx, src2
00540                                                         <a class="code" href="classNLMISC_1_1CRGBA.html#a16">sub</a>                     ebx, esi  ; <a class="code" href="driver__opengl__extension__def_8h.html#a378">offset</a> to source 2
00541                                                         mov                     ecx, numColors
00542                                                         mov         edx, destStride
00543                                                         mov         eax, dup
00544                                                         mov         ebp, srcStride
00545                                                         push        eax
00546                                         myLoopN:                                                                                                
00547                                                         movd        mm0, [esi]                                                  
00548                                                         movd        mm1, [esi + ebx]
00549                                                         push        ecx
00550                                                         psubusb     mm0, mm1
00551                                                         mov         ecx, 4[esp]
00552                                                         movd        eax, mm0
00553                                         dupLoopN:
00554                                                         mov         [edi], eax
00555                                                         dec         ecx
00556                                                         lea         edi, [edi + edx]
00557                                                         jne                 dupLoopN
00558                                                         pop         ecx                 ; get back the loop counter                                                     
00559                                                         <a class="code" href="classNLMISC_1_1CRGBA.html#a15">add</a>         esi, ebp 
00560                                                         dec         ecx
00561                                                         jne         myLoopN                                     
00562                                                         pop eax
00563                                                         pop     ebp
00564                                                         emms
00565                                 }
00566                         }
00567                 }
00568         }
00569 <font class="preprocessor">        #endif</font>
00570 <font class="preprocessor"></font>}
00571 
00572 <font class="comment">// ***************************************************************************</font>
00573 <font class="comment">// ***************************************************************************</font>
00574 <font class="comment">// CBGRA</font>
00575 <font class="comment">// ***************************************************************************</font>
00576 <font class="comment">// ***************************************************************************</font>
00577 
00578 
00579 <font class="comment">// ***************************************************************************</font>
<a name="l00580"></a><a class="code" href="classNLMISC_1_1CBGRA.html#a7">00580</a> <font class="keywordtype">void</font> CBGRA::serial(<font class="keyword">class</font> <a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &amp;f)
00581 {
00582         f.serial (<a class="code" href="classNLMISC_1_1CBGRA.html#m2">B</a>);
00583         f.serial (<a class="code" href="classNLMISC_1_1CBGRA.html#m1">G</a>);
00584         f.serial (<a class="code" href="classNLMISC_1_1CBGRA.html#m0">R</a>);
00585         f.serial (<a class="code" href="classNLMISC_1_1CBGRA.html#m3">A</a>);
00586 }
00587 <font class="comment">// ***************************************************************************</font>
<a name="l00588"></a><a class="code" href="classNLMISC_1_1CBGRA.html#a9">00588</a> <font class="keywordtype">void</font> CBGRA::set(uint8 <a class="code" href="driver__opengl__extension__def_8h.html#a385">r</a>, uint8 g, uint8 b, uint8 a)
00589 {
00590         <a class="code" href="classNLMISC_1_1CBGRA.html#m0">R</a> = <a class="code" href="driver__opengl__extension__def_8h.html#a385">r</a>;
00591         <a class="code" href="classNLMISC_1_1CBGRA.html#m1">G</a> = g;
00592         <a class="code" href="classNLMISC_1_1CBGRA.html#m2">B</a> = b;
00593         <a class="code" href="classNLMISC_1_1CBGRA.html#m3">A</a> = a;
00594 }
00595 <font class="comment">// ***************************************************************************</font>
<a name="l00596"></a><a class="code" href="classNLMISC_1_1CBGRA.html#a8">00596</a> <font class="keywordtype">void</font> CBGRA::blendFromui(CBGRA &amp;c0, CBGRA &amp;c1, uint coef) <font class="comment">// coef must be in [0,256]</font>
00597 {
00598         <font class="keywordtype">int</font>     a1 = coef;
00599         <font class="keywordtype">int</font>     a2 = 256-a1;
00600         R = (c0.R*a2 + c1.R*a1) &gt;&gt;8;
00601         G = (c0.G*a2 + c1.G*a1) &gt;&gt;8;
00602         B = (c0.B*a2 + c1.B*a1) &gt;&gt;8;
00603         A = (c0.A*a2 + c1.A*a1) &gt;&gt;8;
00604 }
00605 
00606 
00607 <font class="comment">// ***************************************************************************</font>
<a name="l00608"></a><a class="code" href="classNLMISC_1_1CRGBA.html#z323_0">00608</a> <font class="keywordtype">bool</font> CRGBA::convertToHLS(<font class="keywordtype">float</font> &amp;h, <font class="keywordtype">float</font> &amp;<a class="code" href="namespaceNLAISCRIPT.html#a20">l</a>, <font class="keywordtype">float</font> &amp;<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>)<font class="keyword"> const</font>
00609 <font class="keyword"></font>{
00610         <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a385">r</a> = <a class="code" href="classNLMISC_1_1CRGBA.html#m0">R</a> / 255.f;
00611         <font class="keywordtype">float</font> g = <a class="code" href="classNLMISC_1_1CRGBA.html#m1">G</a> / 255.f;
00612         <font class="keywordtype">float</font> b = <a class="code" href="classNLMISC_1_1CRGBA.html#m2">B</a> / 255.f;
00613 
00614         <font class="keywordtype">float</font> maxV = <a class="code" href="namespaceNLMISC.html#a219">NLMISC::maxof</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a385">r</a>, g, b);
00615         <font class="keywordtype">float</font> minV = <a class="code" href="namespaceNLMISC.html#a216">NLMISC::minof</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a385">r</a>, g, b);
00616 
00618         <a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> = 0.5f * (maxV + minV);
00619 
00621         <font class="keywordflow">if</font> (minV == maxV)  <font class="comment">// all composants are equals -&gt; achromatique</font>
00622         {
00623                 <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a> = 0;          
00624                 <font class="keywordflow">return</font> <font class="keyword">true</font>;
00625         }
00626         <font class="keywordtype">float</font> diff = maxV - minV;
00628         <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>  = <a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> &gt; 0.5f                                   ?   <font class="comment">/*are we in the top of the double-hexcone ? */</font>
00629                 diff / (2.f - maxV - minV)  :
00630                 diff / (maxV + minV);
00631 
00632         <font class="comment">// Get hue</font>
00633 
00634         <font class="keywordflow">if</font> (maxV == <a class="code" href="driver__opengl__extension__def_8h.html#a385">r</a>)
00635         {
00636                 h = (g - b) / diff;
00637         }
00638         <font class="keywordflow">else</font> <font class="keywordflow">if</font> (maxV == g)
00639         {
00640                 h = 2.f + (b - <a class="code" href="driver__opengl__extension__def_8h.html#a385">r</a>) / diff;
00641         }
00642         <font class="keywordflow">else</font>
00643         {
00644                 h = 4.f + (<a class="code" href="driver__opengl__extension__def_8h.html#a385">r</a> - g) / diff;
00645         }
00646                  
00647         h *= 60.f; <font class="comment">// scale to [0..360]</font>
00648 
00649         <font class="keywordflow">if</font> (h &lt; 0.f) h += 360.f;
00650         
00651         <font class="keywordflow">return</font> <font class="keyword">false</font>;
00652 }
00653 
00654 
00655 <font class="comment">// ***************************************************************************</font>
00657 <font class="comment">static float HLSValue(float h, float v1, float v2)</font>
00658 {
00659         <font class="comment">/* get hue in the [0, 360] interval */</font>
00660         <font class="comment">// h -= 360.f * ::floorf(h / 360.f);</font>
00661 
00662         <font class="keywordflow">if</font> (h &gt; 360.f) h -= 360.f;
00663         <font class="keywordflow">else</font> <font class="keywordflow">if</font> (h &lt; 0) h += 360.f;
00664 
00665         <font class="keywordflow">if</font> (h &lt; 60.f)
00666         {
00667                 <font class="keywordflow">return</font> v1 + (v2 - v1) * h / 60.f;
00668         }
00669         <font class="keywordflow">else</font> <font class="keywordflow">if</font> (h &lt; 180.f)
00670         {
00671                 <font class="keywordflow">return</font> v2;
00672         }
00673         <font class="keywordflow">else</font> <font class="keywordflow">if</font> (h &lt; 240.f)
00674         {
00675                 <font class="keywordflow">return</font> v1 + (v2 - v1) * (240.f - h) / 60.f;
00676         }
00677         <font class="keywordflow">else</font>
00678         {
00679                 <font class="keywordflow">return</font> v1;
00680         }                
00681 }
00682 
00683 
00684 <font class="comment">// ***************************************************************************</font>
<a name="l00685"></a><a class="code" href="classNLMISC_1_1CRGBA.html#z323_1">00685</a> <font class="keywordtype">void</font> CRGBA::buildFromHLS(<font class="keywordtype">float</font> h, <font class="keywordtype">float</font> <a class="code" href="namespaceNLAISCRIPT.html#a20">l</a>, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>)
00686 {
00687         <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(<a class="code" href="namespaceNLAISCRIPT.html#a20">l</a>, 0, 1);
00688         <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, 0, 1);
00689 
00690         <font class="keywordtype">float</font> v2 = (<a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> &lt;= 0.5f) ? (<a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> * (1 + <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>)) : (<a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> + <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a> - <a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> * <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>);
00691         <font class="keywordtype">float</font> v1 = 2.f * <a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> - v2;
00692 
00693         <font class="keywordflow">if</font> (<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a> == 0) <font class="comment">// achromatic ?</font>
00694         {
00695                 <a class="code" href="classNLMISC_1_1CRGBA.html#m0">R</a> = <a class="code" href="classNLMISC_1_1CRGBA.html#m1">G</a> = <a class="code" href="classNLMISC_1_1CRGBA.html#m2">B</a> = (uint8) (255.f * <a class="code" href="namespaceNLAISCRIPT.html#a20">l</a>);
00696         }
00697         <font class="keywordflow">else</font> <font class="comment">// chromatic case</font>
00698         {
00699                 <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>;
00700                 <font class="comment">//</font>
00701                 <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a> = <a class="code" href="namespaceNLMISC.html#a313">HLSValue</a>(h + 120.f, v1, v2);
00702                 <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>, 0.f, 1.f);
00703                 <a class="code" href="classNLMISC_1_1CRGBA.html#m0">R</a> = (uint8) (255.f * <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>);
00704                 <font class="comment">//</font>
00705                 <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a> = <a class="code" href="namespaceNLMISC.html#a313">HLSValue</a>(h, v1, v2);
00706                 <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>, 0.f, 1.f);
00707                 <a class="code" href="classNLMISC_1_1CRGBA.html#m1">G</a> = (uint8) (255.f * <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>);
00708                 <font class="comment">//</font>
00709                 <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a> = <a class="code" href="namespaceNLMISC.html#a313">HLSValue</a>(h - 120.f, v1, v2);
00710                 <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>, 0.f, 1.f);
00711                 <a class="code" href="classNLMISC_1_1CRGBA.html#m2">B</a> = (uint8) (255.f * <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>);        
00712         }
00713 }
00714 
00715 
00716 <font class="comment">// ***************************************************************************</font>
00717 <font class="comment">// ***************************************************************************</font>
00718 <font class="comment">// CRGBAF</font>
00719 <font class="comment">// ***************************************************************************</font>
00720 <font class="comment">// ***************************************************************************</font>
00721 
00722 
00723 <font class="comment">// ***************************************************************************</font>
00724 <font class="keywordtype">void</font> CRGBAF::serial(<font class="keyword">class</font> <a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &amp;f)
00725 {
00726         f.serial (<a class="code" href="classNLMISC_1_1CRGBA.html#m0">R</a>);
00727         f.serial (<a class="code" href="classNLMISC_1_1CRGBA.html#m1">G</a>);
00728         f.serial (<a class="code" href="classNLMISC_1_1CRGBA.html#m2">B</a>);
00729         f.serial (<a class="code" href="classNLMISC_1_1CRGBA.html#m3">A</a>);
00730 }
00731 <font class="comment">// ***************************************************************************</font>
<a name="l00732"></a><a class="code" href="classNLMISC_1_1CRGBAF.html#a0">00732</a> <font class="keywordtype">void</font> CRGBAF::set(<font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a385">r</a>, <font class="keywordtype">float</font> g, <font class="keywordtype">float</font> b, <font class="keywordtype">float</font> a)
00733 {
00734         <a class="code" href="classNLMISC_1_1CRGBAF.html#m0">R</a> = <a class="code" href="driver__opengl__extension__def_8h.html#a385">r</a>;
00735         <a class="code" href="classNLMISC_1_1CRGBAF.html#m1">G</a> = g;
00736         <a class="code" href="classNLMISC_1_1CRGBAF.html#m2">B</a> = b;
00737         <a class="code" href="classNLMISC_1_1CRGBAF.html#m3">A</a> = a;
00738 }
00739 
00740 
00741 
00742 
00743 
00744 } <font class="comment">// NLMISC</font>
</pre></div>

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