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<hr><h1>hls_color_texture.cpp</h1><a href="hls__color__texture_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <font class="comment">/* Copyright, 2000-2002 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="std3d_8h.html">std3d.h</a>"</font>
00027 <font class="preprocessor">#include "<a class="code" href="hls__color__texture_8h.html">3d/hls_color_texture.h</a>"</font>
00028 <font class="preprocessor">#include "<a class="code" href="fast__floor_8h.html">3d/fast_floor.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="fasthls__modifier_8h.html">3d/fasthls_modifier.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="stream_8h.html">nel/misc/stream.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="bitmap_8h.html">nel/misc/bitmap.h</a>"</font>
00032 <font class="preprocessor">#include "<a class="code" href="system__info_8h.html">nel/misc/system_info.h</a>"</font>
00033 <font class="preprocessor">#include "<a class="code" href="algo_8h.html">nel/misc/algo.h</a>"</font>
00034
00035
00036 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
00037 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
00038
00039 <font class="keyword">namespace </font>NL3D
00040 {
00041
00042
<a name="l00043"></a><a class="code" href="hls__color__texture_8cpp.html#a0">00043</a> <font class="preprocessor">#define BLOCK_NUM_PIXEL 16</font>
<a name="l00044"></a><a class="code" href="hls__color__texture_8cpp.html#a1">00044</a> <font class="preprocessor"></font><font class="preprocessor">#define BLOCK_DXTC_SIZE 16</font>
<a name="l00045"></a><a class="code" href="hls__color__texture_8cpp.html#a2">00045</a> <font class="preprocessor"></font><font class="preprocessor">#define BLOCK_ALPHA_SIZE 16</font>
00046 <font class="preprocessor"></font>
00047
00048 <font class="comment">// ***************************************************************************</font>
<a name="l00049"></a><a class="code" href="classNL3D_1_1CHLSColorDelta.html#a0">00049</a> <font class="keywordtype">void</font> CHLSColorDelta::serial(<a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &f)
00050 {
00051 f.<a class="code" href="classNLMISC_1_1IStream.html#a29">serialVersion</a>(0);
00052 f.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNL3D_1_1CHLSColorDelta.html#m0">DHue</a>, <a class="code" href="classNL3D_1_1CHLSColorDelta.html#m1">DLum</a>, <a class="code" href="classNL3D_1_1CHLSColorDelta.html#m2">DSat</a>);
00053 }
00054
00055
00056 <font class="comment">// ***************************************************************************</font>
<a name="l00057"></a><a class="code" href="structNL3D_1_1CHLSColorTexture_1_1CMask.html#a1">00057</a> <font class="keywordtype">void</font> CHLSColorTexture::CMask::serial(<a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &f)
00058 {
00059 f.<a class="code" href="classNLMISC_1_1IStream.html#a29">serialVersion</a>(0);
00060
00061 f.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="structNL3D_1_1CHLSColorTexture_1_1CMask.html#m0">FullBlockIndex</a>);
00062 f.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="structNL3D_1_1CHLSColorTexture_1_1CMask.html#m1">MixtBlockIndex</a>);
00063 f.<a class="code" href="classNLMISC_1_1IStream.html#a7">serialCont</a>(<a class="code" href="structNL3D_1_1CHLSColorTexture_1_1CMask.html#m2">Data</a>);
00064 }
00065
00066
00067 <font class="comment">// ***************************************************************************</font>
<a name="l00068"></a><a class="code" href="structNL3D_1_1CHLSColorTexture_1_1CMask.html#a0">00068</a> <font class="keywordtype">void</font> CHLSColorTexture::CMask::setBit(uint bitId)
00069 {
00070 uint8 &b= <a class="code" href="structNL3D_1_1CHLSColorTexture_1_1CMask.html#m2">Data</a>[bitId/8];
00071 b|= 1<<(bitId&7);
00072 }
00073
00074
00075 <font class="comment">// ***************************************************************************</font>
<a name="l00076"></a><a class="code" href="classNL3D_1_1CHLSColorTexture.html#a0">00076</a> CHLSColorTexture::CHLSColorTexture()
00077 {
00078 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#a1">reset</a>();
00079 }
00080
00081 <font class="comment">// ***************************************************************************</font>
<a name="l00082"></a><a class="code" href="classNL3D_1_1CHLSColorTexture.html#a1">00082</a> <font class="keywordtype">void</font> CHLSColorTexture::reset()
00083 {
00084 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o0">_Width</a>= 0;
00085 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o1">_Height</a>= 0;
00086 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o2">_NumMipMap</a>= 0;
00087 <a class="code" href="namespaceNLMISC.html#a222">contReset</a>(<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o4">_Texture</a>);
00088 <a class="code" href="namespaceNLMISC.html#a222">contReset</a>(<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o5">_Masks</a>);
00089 }
00090
00091 <font class="comment">// ***************************************************************************</font>
<a name="l00092"></a><a class="code" href="classNL3D_1_1CHLSColorTexture.html#a2">00092</a> <font class="keywordtype">void</font> CHLSColorTexture::setBitmap(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CBitmap.html">NLMISC::CBitmap</a> &bmp)
00093 {
00094 <a class="code" href="debug_8h.html#a6">nlassert</a>(bmp.<a class="code" href="classNLMISC_1_1CBitmap.html#a5">getPixelFormat</a>()==CBitmap::DXTC5);
00095 uint <a class="code" href="driver__opengl__extension__def_8h.html#a389">width</a>= bmp.<a class="code" href="classNLMISC_1_1CBitmap.html#a6">getWidth</a>();
00096 uint <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a>= bmp.<a class="code" href="classNLMISC_1_1CBitmap.html#a7">getHeight</a>();
00097 uint mmCount= bmp.<a class="code" href="classNLMISC_1_1CBitmap.html#a9">getMipMapCount</a>();
00098 <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a389">width</a>>=1 && <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a>>=1);
00099 <a class="code" href="debug_8h.html#a6">nlassert</a>(mmCount>1 || <a class="code" href="driver__opengl__extension__def_8h.html#a389">width</a>*<a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a>==1);
00100
00101 <font class="comment">// restart</font>
00102 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#a1">reset</a>();
00103
00104 <font class="comment">// resize.</font>
00105 uint m;
00106 uint pixelSize= 0;
00107 uint numTotalBlock= 0;
00108 <font class="keywordflow">for</font>(m=0;m<mmCount;m++)
00109 {
00110 pixelSize+= bmp.<a class="code" href="classNLMISC_1_1CBitmap.html#z277_0">getPixels</a>(m).size();
00111 uint mmWidth= bmp.<a class="code" href="classNLMISC_1_1CBitmap.html#a6">getWidth</a>(m);
00112 uint mmHeight= bmp.<a class="code" href="classNLMISC_1_1CBitmap.html#a7">getHeight</a>(m);
00113 uint wBlock= (mmWidth+3)/4;
00114 uint hBlock= (mmHeight+3)/4;
00115 numTotalBlock+= wBlock*hBlock;
00116 }
00117 <font class="comment">// add the info for the "Block to compress"</font>
00118 uint blockToCompressSize= 4*((numTotalBlock+31)/32);
00119 <font class="comment">// allocate good size, and reset to 0 => no block to re-compress.</font>
00120 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o4">_Texture</a>.resize(pixelSize+blockToCompressSize, 0);
00121
00122 <font class="comment">// fill texture</font>
00123 uint8 *ptr= &<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o4">_Texture</a>[0];
00124 <font class="keywordflow">for</font>(m=0;m<mmCount;m++)
00125 {
00126 uint mSize= bmp.<a class="code" href="classNLMISC_1_1CBitmap.html#z277_0">getPixels</a>(m).size();
00127 memcpy(ptr, &bmp.<a class="code" href="classNLMISC_1_1CBitmap.html#z277_0">getPixels</a>(m)[0], mSize);
00128 ptr+= mSize;
00129 }
00130
00131 <font class="comment">// header</font>
00132 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o3">_BlockToCompressIndex</a>= pixelSize;
00133 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o0">_Width</a>= <a class="code" href="driver__opengl__extension__def_8h.html#a389">width</a>;
00134 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o1">_Height</a>= <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a>;
00135 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o2">_NumMipMap</a>= mmCount;
00136 }
00137
00138
00139 <font class="comment">// ***************************************************************************</font>
<a name="l00140"></a><a class="code" href="hls__color__texture_8cpp.html#a3">00140</a> <font class="preprocessor">#define MASK_BLOCK_EMPTY 0</font>
<a name="l00141"></a><a class="code" href="hls__color__texture_8cpp.html#a4">00141</a> <font class="preprocessor"></font><font class="preprocessor">#define MASK_BLOCK_FULL 1</font>
<a name="l00142"></a><a class="code" href="hls__color__texture_8cpp.html#a5">00142</a> <font class="preprocessor"></font><font class="preprocessor">#define MASK_BLOCK_MIXT 2</font>
<a name="l00143"></a><a class="code" href="structNL3D_1_1CMaskInfo.html">00143</a> <font class="preprocessor"></font><font class="keyword">struct </font>CMaskInfo
00144 {
00145 <font class="comment">// list of block</font>
<a name="l00146"></a><a class="code" href="structNL3D_1_1CMaskInfo.html#m0">00146</a> uint <a class="code" href="structNL3D_1_1CMaskInfo.html#m0">WBlock</a>, <a class="code" href="structNL3D_1_1CMaskInfo.html#m1">HBlock</a>;
<a name="l00147"></a><a class="code" href="structNL3D_1_1CMaskInfo.html#m2">00147</a> uint <a class="code" href="structNL3D_1_1CMaskInfo.html#m2">NumBlock</a>;
<a name="l00148"></a><a class="code" href="structNL3D_1_1CMaskInfo.html#m3">00148</a> vector<uint8> <a class="code" href="structNL3D_1_1CMaskInfo.html#m3">Blocks</a>; <font class="comment">// 0 empty, 1. Full. 2. Mixt.</font>
00149 };
00150
00151 <font class="comment">// ***************************************************************************</font>
<a name="l00152"></a><a class="code" href="classNL3D_1_1CHLSColorTexture.html#a3">00152</a> <font class="keywordtype">void</font> CHLSColorTexture::addMask(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CBitmap.html">NLMISC::CBitmap</a> &bmpIn, uint threshold)
00153 {
00154 <font class="comment">// copy the bitmap and set RGBA/mipmaps.</font>
00155 CBitmap bmp= bmpIn;
00156 bmp.<a class="code" href="classNLMISC_1_1CBitmap.html#a4">convertToType</a>(CBitmap::RGBA);
00157 bmp.buildMipMaps();
00158
00159 <font class="comment">// verify widht...</font>
00160 <a class="code" href="debug_8h.html#a6">nlassert</a>(bmp.getWidth()== <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o0">_Width</a>);
00161 <a class="code" href="debug_8h.html#a6">nlassert</a>(bmp.getHeight()== <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o1">_Height</a>);
00162 <a class="code" href="debug_8h.html#a6">nlassert</a>(bmp.getMipMapCount()== <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o2">_NumMipMap</a>);
00163
00164 <font class="comment">// ***** build the information for all mipmaps</font>
00165 vector<CMaskInfo> masks;
00166 masks.resize(<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o2">_NumMipMap</a>);
00167 uint m;
00168 uint numMixtBlock= 0;
00169 uint numTotalBlock= 0;
00170 <font class="keywordflow">for</font>(m=0;m<<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o2">_NumMipMap</a>;m++)
00171 {
00172 CMaskInfo &mask= masks[m];
00173 uint mmWidth= bmp.getWidth(m);
00174 uint mmHeight= bmp.getHeight(m);
00175 mask.WBlock= (mmWidth+3)/4;
00176 mask.HBlock= (mmHeight+3)/4;
00177 mask.NumBlock= mask.WBlock*mask.HBlock;
00178 mask.Blocks.resize(mask.NumBlock);
00179
00180 numTotalBlock+= mask.NumBlock;
00181
00182 CRGBA *<a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>= (CRGBA*)(&bmp.getPixels(m)[0]);
00183
00184 <font class="keywordflow">for</font>(uint yB=0;yB<mask.HBlock;yB++)
00185 {
00186 <font class="keywordflow">for</font>(uint xB=0;xB<mask.WBlock;xB++)
00187 {
00188 uint accum= 0;
00189 uint <a class="code" href="driver__opengl__extension__def_8h.html#a367">w</a>= <a class="code" href="bit__set_8cpp.html#a0">min</a>(mmWidth, 4U);
00190 uint h= <a class="code" href="bit__set_8cpp.html#a0">min</a>(mmHeight, 4U);
00191 <font class="keywordflow">for</font>(uint <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>= 0;<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>< h;<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>++)
00192 {
00193 <font class="keywordflow">for</font>(uint <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>= 0;<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>< <a class="code" href="driver__opengl__extension__def_8h.html#a367">w</a>;<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>++)
00194 {
00195 uint yPix= yB*4+<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>;
00196 uint xPix= xB*4+<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>;
00197 <font class="comment">// read the color</font>
00198 uint8 alphaMask = <a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>[yPix*mmWidth+xPix].R;
00199 <font class="comment">// remove some dummy precision.</font>
00200 <font class="keywordflow">if</font>(alphaMask<threshold)
00201 alphaMask= 0;
00202 <font class="keywordflow">if</font>(alphaMask>255-threshold)
00203 alphaMask= 255;
00204 <font class="comment">// Add to the accum</font>
00205 accum+= alphaMask;
00206 }
00207 }
00208
00209 <font class="comment">// full black?</font>
00210 <font class="keywordflow">if</font>(accum==0)
00211 mask.Blocks[yB*mask.WBlock+xB]= <a class="code" href="hls__color__texture_8cpp.html#a3">MASK_BLOCK_EMPTY</a>;
00212 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(accum==<a class="code" href="driver__opengl__extension__def_8h.html#a367">w</a>*h*255)
00213 mask.Blocks[yB*mask.WBlock+xB]= <a class="code" href="hls__color__texture_8cpp.html#a4">MASK_BLOCK_FULL</a>;
00214 <font class="comment">// if not full white or full black, mixt block</font>
00215 <font class="keywordflow">else</font>
00216 {
00217 mask.Blocks[yB*mask.WBlock+xB]= <a class="code" href="hls__color__texture_8cpp.html#a5">MASK_BLOCK_MIXT</a>;
00218 numMixtBlock++;
00219 }
00220 }
00221 }
00222 }
00223
00224 <font class="comment">// ***** compress into CMask</font>
00225 CMask newMask;
00226 uint newMaskDataSize= 0;
00227
00228 <font class="comment">// add the mixt block data size (16*uint8 per block)</font>
00229 newMaskDataSize+= numMixtBlock*<a class="code" href="hls__color__texture_8cpp.html#a2">BLOCK_ALPHA_SIZE</a>;
00230 <font class="comment">// compute the bit size. NB: use uint32 to blocks bits. => data is aligned.</font>
00231 uint bitDataSize= 4*((numTotalBlock+31)/32);
00232 <font class="comment">// add fullBlock bits</font>
00233 newMask.FullBlockIndex= newMaskDataSize;
00234 newMaskDataSize+= bitDataSize;
00235 <font class="comment">// add mixtBlock bits</font>
00236 newMask.MixtBlockIndex= newMaskDataSize;
00237 newMaskDataSize+= bitDataSize;
00238
00239 <font class="comment">// allocate. Fill with 0 to initialize bits per default EMPTY value</font>
00240 newMask.Data.resize(newMaskDataSize, 0);
00241
00242 <font class="comment">// compress each mipMaps from bigger to smaller</font>
00243 uint bitId= 0;
00244 uint mixtBlockId= 0;
00245 <font class="keywordflow">for</font>(m=0;m<<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o2">_NumMipMap</a>;m++)
00246 {
00247 CMaskInfo &mask= masks[m];
00248
00249 <font class="comment">// ---- build the mixtBlock alpha Mask</font>
00250 <font class="keywordflow">for</font>(uint yB=0;yB<mask.HBlock;yB++)
00251 {
00252 <font class="keywordflow">for</font>(uint xB=0;xB<mask.WBlock;xB++)
00253 {
00254 uint <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>= yB*mask.WBlock+xB;
00255 <font class="comment">// if mixt block</font>
00256 <font class="keywordflow">if</font>(mask.Blocks[<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>]==<a class="code" href="hls__color__texture_8cpp.html#a5">MASK_BLOCK_MIXT</a>)
00257 {
00258 <a class="code" href="debug_8h.html#a6">nlassert</a>(mixtBlockId<numMixtBlock);
00259 <font class="comment">// Fill Alpha data.</font>
00260 uint8 *dst= &newMask.Data[mixtBlockId*<a class="code" href="hls__color__texture_8cpp.html#a2">BLOCK_ALPHA_SIZE</a>];
00261 uint mmWidth= bmp.getWidth(m);
00262 uint mmHeight= bmp.getHeight(m);
00263 <font class="comment">// point to the src alpha color</font>
00264 CRGBA *<a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>= (CRGBA*)(&bmp.getPixels(m)[0]);
00265 <a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>= <a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a> + yB*4*mmWidth + xB*4;
00266
00267 <font class="comment">// for the 4*4 pixels</font>
00268 uint <a class="code" href="driver__opengl__extension__def_8h.html#a367">w</a>= <a class="code" href="bit__set_8cpp.html#a0">min</a>(mmWidth, 4U);
00269 uint h= <a class="code" href="bit__set_8cpp.html#a0">min</a>(mmHeight, 4U);
00270 <font class="keywordflow">for</font>(uint <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>=0;<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a><h;<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>++)
00271 {
00272 <font class="keywordflow">for</font>(uint <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>=0;<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a><<a class="code" href="driver__opengl__extension__def_8h.html#a367">w</a>;<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>++)
00273 {
00274 dst[<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>*4+<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>]= <a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>[<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>*mmWidth+<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>].R;
00275 }
00276 }
00277
00278 <font class="comment">// inc</font>
00279 mixtBlockId++;
00280 }
00281 }
00282 }
00283
00284 <font class="comment">// ---- build the fullBlock and mixtBlocks bits.</font>
00285 <font class="keywordflow">for</font>(uint i=0; i<mask.NumBlock; i++)
00286 {
00287 <a class="code" href="debug_8h.html#a6">nlassert</a>(bitId<numTotalBlock);
00288
00289 <font class="comment">// fill bits</font>
00290 <font class="keywordflow">if</font>(mask.Blocks[i]==<a class="code" href="hls__color__texture_8cpp.html#a4">MASK_BLOCK_FULL</a>)
00291 newMask.setBit(newMask.FullBlockIndex*8 + bitId);
00292 <font class="keywordflow">else</font> <font class="keywordflow">if</font>(mask.Blocks[i]==<a class="code" href="hls__color__texture_8cpp.html#a5">MASK_BLOCK_MIXT</a>)
00293 newMask.setBit(newMask.MixtBlockIndex*8 + bitId);
00294
00295 <font class="comment">// inc</font>
00296 bitId++;
00297 }
00298 }
00299
00300 <font class="comment">// ***** Add the CMask</font>
00301 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o5">_Masks</a>.push_back(newMask);
00302
00303 <font class="comment">// Or the BlockToCompress info with the MixtBlocks bits.</font>
00304 <a class="code" href="debug_8h.html#a6">nlassert</a>(bitDataSize==<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o4">_Texture</a>.size()-<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o3">_BlockToCompressIndex</a>);
00305 <font class="keywordflow">for</font>(uint i=0;i<bitDataSize;i++)
00306 {
00307 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o4">_Texture</a>[<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o3">_BlockToCompressIndex</a>+i]|= newMask.Data[newMask.MixtBlockIndex+i];
00308 }
00309 }
00310
00311
00312 <font class="comment">// ***************************************************************************</font>
<a name="l00313"></a><a class="code" href="classNL3D_1_1CHLSColorTexture.html#a6">00313</a> <font class="keywordtype">void</font> CHLSColorTexture::serial(<a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &f)
00314 {
00315 f.<a class="code" href="classNLMISC_1_1IStream.html#a29">serialVersion</a>(0);
00316
00317 f.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o0">_Width</a>, <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o1">_Height</a>, <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o2">_NumMipMap</a>, <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o3">_BlockToCompressIndex</a>);
00318 f.<a class="code" href="classNLMISC_1_1IStream.html#a7">serialCont</a>(<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o4">_Texture</a>);
00319 f.<a class="code" href="classNLMISC_1_1IStream.html#a7">serialCont</a>(<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o5">_Masks</a>);
00320 }
00321
00322
00323 <font class="comment">// ***************************************************************************</font>
00324 <font class="keyword">static</font> <font class="keyword">inline</font> <font class="keywordtype">void</font> <a class="code" href="namespaceNL3D.html#a367">getBitPack</a>(uint32 *bitPtr, uint32 &bitMask)
00325 {
00326 <font class="preprocessor">#ifdef NL_LITTLE_ENDIAN</font>
00327 <font class="preprocessor"></font> bitMask= *bitPtr;
00328 <font class="preprocessor">#else</font>
00329 <font class="preprocessor"></font> bitMask = ((uint8*)bitPtr)[0];
00330 bitMask+= ((uint8*)bitPtr)[1]<<8;
00331 bitMask+= ((uint8*)bitPtr)[2]<<16;
00332 bitMask+= ((uint8*)bitPtr)[3]<<24;
00333 <font class="preprocessor">#endif</font>
00334 <font class="preprocessor"></font>}
00335
00336 <font class="comment">// ***************************************************************************</font>
<a name="l00337"></a><a class="code" href="classNL3D_1_1CHLSColorTexture.html#a5">00337</a> <font class="keywordtype">void</font> CHLSColorTexture::buildColorVersion(<font class="keyword">const</font> CHLSColorDelta *colDeltaList, <a class="code" href="classNLMISC_1_1CBitmap.html">NLMISC::CBitmap</a> &out)
00338 {
00339 <font class="comment">// static to avoid realloc</font>
00340 <font class="keyword">static</font> vector<uint8> dstTexture;
00341 <font class="keyword">static</font> vector<CRGBA> dstUnCompTexture;
00342 uint32 *bitPtr;
00343 uint8 *srcPtr;
00344 uint8 *dstPtr;
00345 CRGBA *dstUnCompPtr;
00346 uint32 bitMask;
00347
00348 <font class="comment">// **** prepare Data</font>
00349
00350 <font class="comment">// count number of DXTC5 block in _Texture.</font>
00351 uint numBlocks= <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o3">_BlockToCompressIndex</a>/<a class="code" href="hls__color__texture_8cpp.html#a1">BLOCK_DXTC_SIZE</a>;
00352
00353 <font class="comment">// create a tmp compressed block array, copy of Texture.</font>
00354 dstTexture.resize(numBlocks*<a class="code" href="hls__color__texture_8cpp.html#a1">BLOCK_DXTC_SIZE</a>);
00355 <font class="comment">// copy from texture (to have non colored version already copied, and also ALPHA ok)</font>
00356 memcpy(&dstTexture[0], &<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o4">_Texture</a>[0], dstTexture.size());
00357
00358 <font class="comment">// create a tmp uncompressed block array, which will receive coloring of mixt blocks</font>
00359 dstUnCompTexture.resize(numBlocks*<a class="code" href="hls__color__texture_8cpp.html#a0">BLOCK_NUM_PIXEL</a>);
00360
00361 <font class="comment">// For all blockToCompress, uncompress them in dstUnCompTexture, because they will blend with future mask coloring</font>
00362 uint n= numBlocks;
00363 bitPtr= (uint32*)(&<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o4">_Texture</a>[<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o3">_BlockToCompressIndex</a>]);
00364 dstUnCompPtr= &dstUnCompTexture[0];
00365 srcPtr= &<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o4">_Texture</a>[0];
00366 <font class="keywordflow">while</font>(n>0)
00367 {
00368 uint nBits= <a class="code" href="bit__set_8cpp.html#a0">min</a>(n, 32U);
00369 <a class="code" href="namespaceNL3D.html#a367">getBitPack</a>(bitPtr, bitMask);
00370 n-= nBits;
00371 bitPtr++;
00372 <font class="keywordflow">for</font>(;nBits>0;nBits--)
00373 {
00374 <font class="comment">// need to compress/uncompress ??</font>
00375 <font class="keywordflow">if</font>(bitMask&1)
00376 {
00377 <font class="comment">// uncompress this block. ignore alpha</font>
00378 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#f0">uncompressBlockRGB</a>(srcPtr, dstUnCompPtr);
00379 }
00380 bitMask>>=1;
00381 dstUnCompPtr+= <a class="code" href="hls__color__texture_8cpp.html#a0">BLOCK_NUM_PIXEL</a>;
00382 srcPtr+= <a class="code" href="hls__color__texture_8cpp.html#a1">BLOCK_DXTC_SIZE</a>;
00383 }
00384 }
00385
00386 <font class="comment">// **** build the color version for all masks.</font>
00387
00388 <font class="keywordflow">for</font>(uint maskId= 0; maskId<<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o5">_Masks</a>.size();maskId++)
00389 {
00390 CMask &mask= <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o5">_Masks</a>[maskId];
00391 <font class="comment">// unpack colDelta, and prepare for use with CFastHLSModifier.</font>
00392 uint8 dHue= colDeltaList[maskId].DHue;
00393 uint dLum= 0xFFFFFF00 + colDeltaList[maskId].DLum*2;
00394 uint dSat= 0xFFFFFF00 + colDeltaList[maskId].DSat*2;
00395
00396 <font class="comment">// get a ptr on alpha of mixt block.</font>
00397 uint8 *alphaMixtBlock= &mask.Data[0];
00398
00399
00400 <font class="comment">// ---- for all Fullblock ot this mask, color and store in dstTexture</font>
00401 <font class="comment">// start at full Block bits desc</font>
00402 bitPtr= (uint32*)(&mask.Data[mask.FullBlockIndex]);
00403 uint32 *bitCompPtr= (uint32*)(&<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o4">_Texture</a>[<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o3">_BlockToCompressIndex</a>]);
00404 srcPtr= &<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o4">_Texture</a>[0];
00405 dstPtr= &dstTexture[0];
00406 dstUnCompPtr= &dstUnCompTexture[0];
00407 n= numBlocks;
00408 <font class="comment">// run all blocks.</font>
00409 <font class="keywordflow">while</font>(n>0)
00410 {
00411 uint nBits= <a class="code" href="bit__set_8cpp.html#a0">min</a>(n, 32U);
00412 <font class="comment">// get Full block mask.</font>
00413 <a class="code" href="namespaceNL3D.html#a367">getBitPack</a>(bitPtr, bitMask);
00414 n-= nBits;
00415 bitPtr++;
00416 <font class="comment">// get Compress mask.</font>
00417 uint32 bitCompMask;
00418 <a class="code" href="namespaceNL3D.html#a367">getBitPack</a>(bitCompPtr, bitCompMask);
00419 bitCompPtr++;
00420 <font class="comment">// for all bits</font>
00421 <font class="keywordflow">for</font>(;nBits>0;nBits--)
00422 {
00423 <font class="comment">// need to colorize??</font>
00424 <font class="keywordflow">if</font>(bitMask&1)
00425 {
00426 <font class="comment">// colorize this block. ignore alpha</font>
00427 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#f3">colorizeDXTCBlockRGB</a>(srcPtr, dstPtr, dHue, dLum, dSat);
00428 <font class="comment">// If this block is "a block to recompress", then must uncompress it in dstUnCompPtr</font>
00429 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#f0">uncompressBlockRGB</a>(dstPtr, dstUnCompPtr);
00430 }
00431 bitMask>>=1;
00432 bitCompMask>>=1;
00433 srcPtr+= <a class="code" href="hls__color__texture_8cpp.html#a1">BLOCK_DXTC_SIZE</a>;
00434 dstPtr+= <a class="code" href="hls__color__texture_8cpp.html#a1">BLOCK_DXTC_SIZE</a>;
00435 dstUnCompPtr+= <a class="code" href="hls__color__texture_8cpp.html#a0">BLOCK_NUM_PIXEL</a>;
00436 }
00437 }
00438
00439 <font class="comment">// ---- for all mixtblock ot this mask, color, uncompress and blend in store in dstUnCompTexture</font>
00440 <font class="keyword">static</font> uint8 tmpColoredBlockDXTC[<a class="code" href="hls__color__texture_8cpp.html#a0">BLOCK_NUM_PIXEL</a>];
00441 <font class="keyword">static</font> CRGBA tmpColoredBlockRGBA[<a class="code" href="hls__color__texture_8cpp.html#a0">BLOCK_NUM_PIXEL</a>];
00442 <font class="comment">// start at mixt Block bits desc</font>
00443 bitPtr= (uint32*)(&mask.Data[mask.MixtBlockIndex]);
00444 srcPtr= &<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o4">_Texture</a>[0];
00445 dstUnCompPtr= &dstUnCompTexture[0];
00446 n= numBlocks;
00447 <font class="comment">// run all blocks.</font>
00448 <font class="keywordflow">while</font>(n>0)
00449 {
00450 uint nBits= <a class="code" href="bit__set_8cpp.html#a0">min</a>(n, 32U);
00451 <a class="code" href="namespaceNL3D.html#a367">getBitPack</a>(bitPtr, bitMask);
00452 n-= nBits;
00453 bitPtr++;
00454 <font class="keywordflow">for</font>(;nBits>0;nBits--)
00455 {
00456 <font class="comment">// need to colorize??</font>
00457 <font class="keywordflow">if</font>(bitMask&1)
00458 {
00459 <font class="comment">// colorize this block. store 2 colors in tmp</font>
00460 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#f3">colorizeDXTCBlockRGB</a>(srcPtr, tmpColoredBlockDXTC, dHue, dLum, dSat);
00461 <font class="comment">// copy RGB bits from src to tmp</font>
00462 ((uint32*)tmpColoredBlockDXTC)[3]= ((uint32*)srcPtr)[3];
00463
00464 <font class="comment">// uncompress the block.</font>
00465 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#f0">uncompressBlockRGB</a>(tmpColoredBlockDXTC, tmpColoredBlockRGBA);
00466
00467 <font class="comment">// blend tmpColoredBlockRGBA into dstUnCompPtr, according to alphaMixtBlock.</font>
00468 <font class="keywordflow">for</font>(uint i=0;i<16;i++)
00469 {
00470 dstUnCompPtr[i].blendFromuiRGBOnly(dstUnCompPtr[i], tmpColoredBlockRGBA[i], *alphaMixtBlock);
00471 <font class="comment">// next pixel</font>
00472 alphaMixtBlock++;
00473 }
00474 }
00475 bitMask>>=1;
00476 srcPtr+= <a class="code" href="hls__color__texture_8cpp.html#a1">BLOCK_DXTC_SIZE</a>;
00477 dstUnCompPtr+= <a class="code" href="hls__color__texture_8cpp.html#a0">BLOCK_NUM_PIXEL</a>;
00478 }
00479 }
00480
00481 }
00482
00483
00484 <font class="comment">// Since colorizeDXTCBlockRGB() use MMX, must end with emms.</font>
00485 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font>
00486 <font class="preprocessor"></font> <font class="keywordflow">if</font>(CSystemInfo::hasMMX())
00487 _asm emms;
00488 <font class="preprocessor">#endif</font>
00489 <font class="preprocessor"></font>
00490
00491 <font class="comment">// **** compress needed blocks</font>
00492 n= numBlocks;
00493 bitPtr= (uint32*)(&<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o4">_Texture</a>[<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o3">_BlockToCompressIndex</a>]);
00494 dstUnCompPtr= &dstUnCompTexture[0];
00495 dstPtr= &dstTexture[0];
00496 <font class="keywordflow">while</font>(n>0)
00497 {
00498 uint nBits= <a class="code" href="bit__set_8cpp.html#a0">min</a>(n, 32U);
00499 <a class="code" href="namespaceNL3D.html#a367">getBitPack</a>(bitPtr, bitMask);
00500 n-= nBits;
00501 bitPtr++;
00502 <font class="keywordflow">for</font>(;nBits>0;nBits--)
00503 {
00504 <font class="comment">// need to compress ??</font>
00505 <font class="keywordflow">if</font>(bitMask&1)
00506 {
00507 <font class="comment">// uncompress this block. ignore alpha</font>
00508 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#f1">compressBlockRGB</a>(dstUnCompPtr, dstPtr);
00509 }
00510 bitMask>>=1;
00511 dstUnCompPtr+= <a class="code" href="hls__color__texture_8cpp.html#a0">BLOCK_NUM_PIXEL</a>;
00512 dstPtr+= <a class="code" href="hls__color__texture_8cpp.html#a1">BLOCK_DXTC_SIZE</a>;
00513 }
00514 }
00515
00516 <font class="comment">// **** format bitmap out with dstTexture.</font>
00517 out.<a class="code" href="classNLMISC_1_1CBitmap.html#a13">reset</a>(CBitmap::DXTC5);
00518 out.<a class="code" href="classNLMISC_1_1CBitmap.html#a15">resize</a>(<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o0">_Width</a>, <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o1">_Height</a>, CBitmap::DXTC5);
00519
00520 <font class="comment">// create and fill all the mipMaps</font>
00521 uint <a class="code" href="driver__opengl__extension__def_8h.html#a367">w</a>= <a class="code" href="classNL3D_1_1CHLSColorTexture.html#o0">_Width</a>, h=<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o1">_Height</a>;
00522 dstPtr= &dstTexture[0];
00523 <font class="keywordflow">for</font>(uint m=0;m<<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o2">_NumMipMap</a>;m++)
00524 {
00525 <font class="comment">// allocate.</font>
00526 out.<a class="code" href="classNLMISC_1_1CBitmap.html#a16">resizeMipMap</a>(m, <a class="code" href="driver__opengl__extension__def_8h.html#a367">w</a>, h);
00527 <font class="comment">// get the size of this DXTC5 level.</font>
00528 uint size= out.<a class="code" href="classNLMISC_1_1CBitmap.html#z277_0">getPixels</a>(m).size();
00529 <font class="comment">// fill</font>
00530 memcpy(&out.<a class="code" href="classNLMISC_1_1CBitmap.html#z277_0">getPixels</a>(m)[0], dstPtr, size);
00531 <font class="comment">// next mipmap</font>
00532 dstPtr+= size;
00533 <a class="code" href="driver__opengl__extension__def_8h.html#a367">w</a>= (<a class="code" href="driver__opengl__extension__def_8h.html#a367">w</a>+1)/2;
00534 h= (h+1)/2;
00535 }
00536 <font class="comment">// verify all filled</font>
00537 <a class="code" href="debug_8h.html#a6">nlassert</a>( dstPtr== (&dstTexture[0] + dstTexture.size()) );
00538
00539 <font class="comment">// set the correct num of mipmap</font>
00540 out.<a class="code" href="classNLMISC_1_1CBitmap.html#a17">setMipMapCount</a>(<a class="code" href="classNL3D_1_1CHLSColorTexture.html#o2">_NumMipMap</a>);
00541 }
00542
00543
00544 <font class="comment">// ***************************************************************************</font>
<a name="l00545"></a><a class="code" href="classNL3D_1_1CHLSColorTexture.html#f3">00545</a> <font class="keywordtype">void</font> CHLSColorTexture::colorizeDXTCBlockRGB(<font class="keyword">const</font> uint8 *srcPtr, uint8 *dstPtr, uint8 dHue, uint dLum, uint dSat)
00546 {
00547 <font class="comment">// get modifier.</font>
00548 CFastHLSModifier &fastHLS= CFastHLSModifier::getInstance();
00549
00550 <font class="comment">// apply the color on the 2 DXTC colors</font>
00551 *(uint16*)(dstPtr+8 )= fastHLS.applyHLSMod(*(uint16*)(srcPtr+8 ) , dHue, dLum, dSat);
00552 *(uint16*)(dstPtr+10)= fastHLS.applyHLSMod(*(uint16*)(srcPtr+10) , dHue, dLum, dSat);
00553 }
00554
00555
00556 <font class="comment">// ***************************************************************************</font>
<a name="l00557"></a><a class="code" href="classNL3D_1_1CHLSColorTexture.html#f0">00557</a> <font class="keywordtype">void</font> CHLSColorTexture::uncompressBlockRGB(<font class="keyword">const</font> uint8* srcDXTC, CRGBA *dstRGBA)
00558 {
00559 CRGBA c[4];
00560
00561 uint16 color0;
00562 uint16 color1;
00563 uint32 bits;
00564 color0= *(uint16*)(srcDXTC+8);
00565 color1= *(uint16*)(srcDXTC+10);
00566 bits= *(uint32*)(srcDXTC+12);
00567
00568 c[0].set565(color0);
00569 c[1].set565(color1);
00570
00571 <font class="comment">// ignore color0>color1 for DXT3 and DXT5.</font>
00572 c[2].blendFromui(c[0],c[1],85);
00573 c[3].blendFromui(c[0],c[1],171);
00574
00575 <font class="comment">// bits to color (ignore alpha result)</font>
00576 <font class="keywordflow">for</font>(uint n= 16;n>0;n--)
00577 {
00578 *dstRGBA= c[bits&3];
00579 bits>>=2;
00580 dstRGBA++;
00581 }
00582 }
00583
00584
00585 <font class="comment">// ***************************************************************************</font>
<a name="l00586"></a><a class="code" href="classNL3D_1_1CHLSColorTexture.html#f2">00586</a> <font class="keywordtype">void</font> CHLSColorTexture::computeMinMax(sint *diffBlock, CVectorInt &<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>, sint mean[3], sint rgb0[3], sint rgb1[3])
00587 {
00588 <font class="comment">// compute the min and max distance along the axis v.</font>
00589 sint mind= INT_MAX;
00590 sint maxd= INT_MIN;
00591 sint *srcDiff= diffBlock;
00592 <font class="comment">// for the 16 pixels</font>
00593 <font class="keywordflow">for</font>(uint n=16;n>0;n--,srcDiff+=3)
00594 {
00595 sint R= srcDiff[0];
00596 sint G= srcDiff[1];
00597 sint B= srcDiff[2];
00598 sint d= R*<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.x + G*<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.y + B*<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.z;
00599 <font class="keywordflow">if</font>(d<mind)
00600 mind= d;
00601 <font class="keywordflow">if</font>(d>maxd)
00602 maxd= d;
00603 }
00604
00605 <font class="comment">// avoid overflow. here, Higher possible bit is 16+8+2 (add of 3 values=> *4) == 26</font>
00606 <font class="comment">// 26-12= 14. 14+16=30 => ok.</font>
00607 mind>>= 12;
00608 maxd>>= 12;
00609
00610 <font class="comment">// compute the 2 colors: rgb0 on the min, and rgb1 on the max</font>
00611 rgb0[0]= mean[0]+ (mind*<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.x>>20);
00612 rgb0[1]= mean[1]+ (mind*<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.y>>20);
00613 rgb0[2]= mean[2]+ (mind*<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.z>>20);
00614 rgb1[0]= mean[0]+ (maxd*<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.x>>20);
00615 rgb1[1]= mean[1]+ (maxd*<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.y>>20);
00616 rgb1[2]= mean[2]+ (maxd*<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.z>>20);
00617 <font class="comment">// clamp to 0..255</font>
00618 fastClamp8(rgb0[0]);
00619 fastClamp8(rgb0[1]);
00620 fastClamp8(rgb0[2]);
00621 fastClamp8(rgb1[0]);
00622 fastClamp8(rgb1[1]);
00623 fastClamp8(rgb1[2]);
00624 }
00625
00626
00627 <font class="comment">// ***************************************************************************</font>
<a name="l00628"></a><a class="code" href="classNL3D_1_1CHLSColorTexture.html#f1">00628</a> <font class="keywordtype">void</font> CHLSColorTexture::compressBlockRGB(CRGBA *srcRGBA, uint8* dstDXTC)
00629 {
00630 <font class="comment">// skip alpha part.</font>
00631 uint8 *dstBlock= dstDXTC+8;
00632
00633
00634 <font class="comment">// **** compute RGB0 and RGB1.</font>
00635 uint i,j,n;
00636
00637 <font class="comment">// compute the mean color of 16 pixels</font>
00638 sint mean[3];
00639 mean[0]= 0;
00640 mean[1]= 0;
00641 mean[2]= 0;
00642 CRGBA *<a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>= srcRGBA;
00643 <font class="keywordflow">for</font>(n=16;n>0;n--,<a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>++)
00644 {
00645 mean[0]+= <a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>->R;
00646 mean[1]+= <a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>->G;
00647 mean[2]+= <a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>->B;
00648 <font class="comment">// at same time, setup alpha to 0. Important for "compute bits" part (see MMX)!!</font>
00649 <a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>->A= 0;
00650 }
00651 mean[0]>>= 4;
00652 mean[1]>>= 4;
00653 mean[2]>>= 4;
00654
00655 <font class="comment">// compute col-mean</font>
00656 sint diffBlock[16*3];
00657 <a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>= srcRGBA;
00658 sint *srcDiff= diffBlock;
00659 <font class="keywordflow">for</font>(n=16;n>0;n--,<a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>++,srcDiff+=3)
00660 {
00661 srcDiff[0]= (sint)<a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>->R - mean[0];
00662 srcDiff[1]= (sint)<a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>->G - mean[1];
00663 srcDiff[2]= (sint)<a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>->B - mean[2];
00664 }
00665
00666
00667 <font class="comment">// compute the covariant matrix.</font>
00668 sint coMat[3][3];
00669 <font class="comment">// Apply std RGB factor (0.3, 0.56, 0.14) to choose the best Axis. This give far much best results.</font>
00670 sint rgbFact[3]= {77, 143, 36};
00671 <font class="keywordflow">for</font>(i=0;i<3;i++)
00672 {
00673 <font class="comment">// OPTIMIZE SINCE SYMETRIX MATRIX</font>
00674 <font class="keywordflow">for</font>(j=i;j<3;j++)
00675 {
00676 sint32 factor= 0;
00677 <font class="comment">// divide / 16 to avoid overflow sint32</font>
00678 uint colFactor= (rgbFact[i]*rgbFact[j]) >> 4;
00679 <font class="comment">// run all 16 pixels.</font>
00680 sint *srcDiff= diffBlock;
00681 <font class="keywordflow">for</font>(n=16;n>0;n--,srcDiff+=3)
00682 {
00683 factor+= srcDiff[i] * srcDiff[j] * colFactor;
00684 }
00685 coMat[i][j]= factor;
00686 }
00687 }
00688 <font class="comment">// Fill symetrix matrix</font>
00689 coMat[1][0]= coMat[0][1];
00690 coMat[2][0]= coMat[0][2];
00691 coMat[2][1]= coMat[1][2];
00692
00693
00694 <font class="comment">// take the bigger vector</font>
00695 sint maxSize= 0;
00696 uint axis= 0;
00697 <font class="keywordflow">for</font>(i=0;i<3;i++)
00698 {
00699 <font class="comment">// Use abs since sqr fails because all sint32 range may be used.</font>
00700 sint size= abs(coMat[i][0]) + abs(coMat[i][1]) + abs(coMat[i][2]);
00701 <font class="keywordflow">if</font>(size>maxSize)
00702 {
00703 maxSize= size;
00704 axis= i;
00705 }
00706 }
00707
00708 <font class="comment">// normalize this vector</font>
00709 CVector <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>;
00710 <font class="comment">// remove some rgb factor...</font>
00711 <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.x= (float)coMat[axis][0]/rgbFact[0];
00712 <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.y= (float)coMat[axis][1]/rgbFact[1];
00713 <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.z= (float)coMat[axis][2]/rgbFact[2];
00714 <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.normalize();
00715 <font class="comment">// set a Fixed 16:16.</font>
00716 CVectorInt vInt;
00717 <font class="comment">// don't bother if OptFastFloorBegin() has been called. 16:16 precision is sufficient.</font>
00718 vInt.x= <a class="code" href="namespaceNL3D.html#a362">OptFastFloor</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.x*65536);
00719 vInt.y= <a class="code" href="namespaceNL3D.html#a362">OptFastFloor</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.y*65536);
00720 vInt.z= <a class="code" href="namespaceNL3D.html#a362">OptFastFloor</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.z*65536);
00721
00722
00723 <font class="comment">// For all pixels, choose the 2 colors along the axis</font>
00724 sint rgb0[3];
00725 sint rgb1[3];
00726 <a class="code" href="classNL3D_1_1CHLSColorTexture.html#f2">computeMinMax</a>(diffBlock, vInt, mean, rgb0, rgb1);
00727
00728 <font class="comment">// Average to 16 bits. NB: correclty encode 0..255 to 0.31 or 0..63.</font>
00729 uint R,G,B;
00730 R= ((rgb0[0]*7967+32768)>>16);
00731 G= ((rgb0[1]*16191+32768)>>16);
00732 B= ((rgb0[2]*7967+32768)>>16);
00733 uint16 rgb016= (R<<11) + (G<<5) + (B);
00734 R= ((rgb1[0]*7967+32768)>>16);
00735 G= ((rgb1[1]*16191+32768)>>16);
00736 B= ((rgb1[2]*7967+32768)>>16);
00737 uint16 rgb116= (R<<11) + (G<<5) + (B);
00738 <font class="comment">// copy to block</font>
00739 ((uint16*)dstBlock)[0]= rgb016;
00740 ((uint16*)dstBlock)[1]= rgb116;
00741
00742
00743 <font class="comment">// **** compute bits</font>
00744 CRGBA c[4];
00745 c[0].set565(rgb016);
00746 c[1].set565(rgb116);
00747 c[2].blendFromui(c[0],c[1],85);
00748 c[3].blendFromui(c[0],c[1],171);
00749 <font class="comment">// it is important that c[] and src Alpha are set to 0, because of "pmaddwd" use in MMX code...</font>
00750 c[0].A= 0;
00751 c[1].A= 0;
00752 c[2].A= 0;
00753 c[3].A= 0;
00754 CRGBA *cPtr= c;
00755
00756 <font class="comment">// result.</font>
00757 uint32 bits= 0;
00758
00759 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font>
00760 <font class="preprocessor"></font> <font class="keywordflow">if</font>(CSystemInfo::hasMMX())
00761 {
00762 <font class="comment">// preapre mmx</font>
00763 uint64 blank= 0;
00764 __asm
00765 {
00766 movq mm7, blank
00767 }
00768
00769 <font class="comment">// for 16 pixels</font>
00770 <a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>= srcRGBA;
00771 <font class="keywordflow">for</font>(n=16;n>0;n--,<a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>++)
00772 {
00773 <font class="comment">/* // C Version (+ little asm).</font>
00774 <font class="comment"> uint minDist= 0xFFFFFFFF;</font>
00775 <font class="comment"> uint id= 0;</font>
00776 <font class="comment"> for(i=0;i<4;i++)</font>
00777 <font class="comment"> {</font>
00778 <font class="comment"> // applying factors such *23, *80, *6 gives better results, but slower (in MMX).</font>
00779 <font class="comment"> uint dist= sqr((sint)src->R-(sint)c[i].R);</font>
00780 <font class="comment"> dist+= sqr((sint)src->G-(sint)c[i].G);</font>
00781 <font class="comment"> dist+= sqr((sint)src->B-(sint)c[i].B);</font>
00782 <font class="comment"> if(dist<minDist)</font>
00783 <font class="comment"> {</font>
00784 <font class="comment"> minDist= dist;</font>
00785 <font class="comment"> id= i;</font>
00786 <font class="comment"> }</font>
00787 <font class="comment"> }</font>
00788 <font class="comment"> bits|=id;</font>
00789 <font class="comment"> __asm</font>
00790 <font class="comment"> {</font>
00791 <font class="comment"> mov eax, bits</font>
00792 <font class="comment"> ror eax, 2</font>
00793 <font class="comment"> mov bits, eax</font>
00794 <font class="comment"> }*/</font>
00795 __asm
00796 {
00797 mov esi, <a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>
00798 mov edi, cPtr
00799
00800 mov ecx, 4
00801 mov edx, 0xFFFFFFFF <font class="comment">// edx= minDist</font>
00802
00803 movd mm0, [esi]
00804 punpcklbw mm0, mm7
00805
00806 mov esi, 4 <font class="comment">// esi= id MinDist (inverted)</font>
00807
00808 <font class="comment">// compare 4 cases.</font>
00809 myLoop:
00810 movd mm1, [edi]
00811 punpcklbw mm1, mm7
00812 psubsw mm1, mm0
00813 pmaddwd mm1, mm1
00814 movd eax, mm1
00815 psrlq mm1, 32
00816 movd ebx, mm1
00817 add eax, ebx
00818
00819 <font class="comment">// take smaller of A and B. here: eax= A, edx= B</font>
00820 sub eax, edx <font class="comment">// eax= A-B</font>
00821 sbb ebx, ebx <font class="comment">// ebx= FF if A<B.</font>
00822 and eax, ebx <font class="comment">// eax= A-B if A<B</font>
00823 add edx, eax <font class="comment">// if A<B, edx= B+A-B= A, else, edx= B. => minimum</font>
00824 <font class="comment">// setup the "smaller" id. here esi= iB, ecx= iA</font>
00825 not ebx <font class="comment">// ebx= 0 if A<B, FF else</font>
00826 sub esi, ecx <font class="comment">// esi= iB-iA</font>
00827 and esi, ebx <font class="comment">// esi= 0 if A<B, iB-iA else</font>
00828 add esi, ecx <font class="comment">// esi= 0+iA= iA if A<B, else esi= iB-iA+iA= iB</font>
00829
00830 add edi, 4
00831 dec ecx
00832 jnz myLoop
00833
00834 <font class="comment">// reverse id</font>
00835 mov edx, 4
00836 mov eax, bits
00837 sub edx, esi
00838 <font class="comment">// and store into bits</font>
00839 or eax, edx
00840 ror eax, 2
00841 mov bits, eax
00842 }
00843 }
00844
00845
00846 <font class="comment">// end MMX block.</font>
00847 __asm emms;
00848 }
00849 <font class="keywordflow">else</font>
00850 <font class="preprocessor">#endif // NL_OS_WINDOWS</font>
00851 <font class="preprocessor"></font> {
00852 <a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>= srcRGBA;
00853 <font class="keywordflow">for</font>(n=16;n>0;n--,<a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>++)
00854 {
00855 <font class="comment">// C Version (+ little asm).</font>
00856 uint minDist= 0xFFFFFFFF;
00857 uint <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>= 0;
00858 <font class="keywordflow">for</font>(i=0;i<4;i++)
00859 {
00860 <font class="comment">// applying factors such *23, *80, *6 gives better results, but slower (in MMX).</font>
00861 uint dist= <a class="code" href="namespaceNLMISC.html#a214">sqr</a>((sint)<a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>->R-(sint)c[i].R);
00862 dist+= <a class="code" href="namespaceNLMISC.html#a214">sqr</a>((sint)<a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>->G-(sint)c[i].G);
00863 dist+= <a class="code" href="namespaceNLMISC.html#a214">sqr</a>((sint)<a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>->B-(sint)c[i].B);
00864 <font class="keywordflow">if</font>(dist<minDist)
00865 {
00866 minDist= dist;
00867 <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>= i;
00868 }
00869 }
00870 <font class="comment">// a ror is faster, but full C version</font>
00871 bits|= <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a><<30;
00872 <font class="comment">// don't do it for the last.</font>
00873 <font class="keywordflow">if</font>(n>1)
00874 bits>>=2;
00875 }
00876 }
00877
00878 <font class="comment">// copy</font>
00879 ((uint32*)dstBlock)[1]= bits;
00880 }
00881
00882
00883 } <font class="comment">// NL3D</font>
</pre></div>
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