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<hr><h1>texture_file.cpp</h1><a href="texture__file_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="std3d_8h.html">std3d.h</a>"</font>
00027 
00028 <font class="preprocessor">#include "<a class="code" href="texture__file_8h.html">3d/texture_file.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="file_8h.html">nel/misc/file.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="path_8h.html">nel/misc/path.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="debug_8h.html">nel/misc/debug.h</a>"</font>
00032 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
00033 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
00034 
00035 
00036 <font class="keyword">namespace </font>NL3D
00037 {
00038 
00039 
<a name="l00041"></a><a class="code" href="classNL3D_1_1CTextureFile.html#d0">00041</a> <font class="keywordtype">void</font> CTextureFile::buildBitmapFromFile(<a class="code" href="classNLMISC_1_1CBitmap.html">NLMISC::CBitmap</a> &amp;dest, <font class="keyword">const</font> std::string &amp;fileName, <font class="keywordtype">bool</font> asyncload, uint8 mipMapSkip)
00042 {
00043         <a class="code" href="classNLMISC_1_1CIFile.html">NLMISC::CIFile</a> f;
00044         <font class="comment">//nldebug(_FileName.c_str());</font>
00045         <font class="keywordflow">try</font>
00046         {
00047                 string <a class="code" href="cf__lexical_8cpp.html#a95">file</a> = CPath::lookup(fileName);
00048                 f.<a class="code" href="classNLMISC_1_1CIFile.html#a6">setAsyncLoading</a> (asyncload);
00049                 f.<a class="code" href="classNLMISC_1_1CIFile.html#a4">setCacheFileOnOpen</a> (asyncload);
00050 
00051                 <font class="comment">// if mipmap skip, must not cache, because don't have to load all!!</font>
00052                 <font class="keywordflow">if</font>(asyncload &amp;&amp; mipMapSkip&gt;0)
00053                 {
00054                         f.<a class="code" href="classNLMISC_1_1CIFile.html#a4">setCacheFileOnOpen</a> (<font class="keyword">false</font>);
00055                         f.<a class="code" href="classNLMISC_1_1CIFile.html#a5">allowBNPCacheFileOnOpen</a>(<font class="keyword">false</font>);
00056                 }
00057 
00058                 <font class="comment">// Load bitmap.</font>
00059                 <font class="keywordflow">if</font> (f.<a class="code" href="classNLMISC_1_1CIFile.html#a3">open</a>(<a class="code" href="cf__lexical_8cpp.html#a95">file</a>))
00060                 {
00061                         <font class="comment">// skip DDS mipmap if wanted</font>
00062                         dest.<a class="code" href="classNLMISC_1_1CBitmap.html#a2">load</a> (f, mipMapSkip);
00063                 }
00064                 <font class="keywordflow">else</font> <font class="keywordflow">throw</font> EPathNotFound(fileName);
00065 
00066                 <font class="comment">// *** Need usercolor computing ?</font>
00067 
00068                 <font class="comment">// Texture not compressed ?</font>
00069                 <font class="keywordflow">if</font> (dest.<a class="code" href="classNLMISC_1_1CBitmap.html#m0">PixelFormat</a> == <a class="code" href="classNLMISC_1_1CBitmap.html#s11s0">RGBA</a>)
00070                 {
00071                         <font class="comment">// Make a filename</font>
00072                         string path = CFile::getFilename(fileName);
00073                         string ext = strrchr (fileName.c_str(), <font class="charliteral">'.'</font>);
00074                         path.resize (path.size () - ext.size());
00075                         path += <font class="stringliteral">"_usercolor"</font> + ext;
00076 
00077                         <font class="comment">// Loopup the texture</font>
00078                         string file2 = CPath::lookup( path, <font class="keyword">false</font>, <font class="keyword">false</font>);
00079                         <font class="keywordflow">if</font> (!file2.empty())
00080                         {
00081                                 <font class="comment">// The file2 exist, load and compute it</font>
00082                                 <a class="code" href="classNLMISC_1_1CBitmap.html#a0">CBitmap</a> bitmap;
00083                                 bitmap.loadGrayscaleAsAlpha (<font class="keyword">true</font>);
00084 
00085                                 <font class="comment">// Open and read the file2</font>
00086                                 <a class="code" href="classNLMISC_1_1CIFile.html">NLMISC::CIFile</a> f2;
00087                                 f2.<a class="code" href="classNLMISC_1_1CIFile.html#a6">setAsyncLoading</a> (asyncload);
00088                                 f2.<a class="code" href="classNLMISC_1_1CIFile.html#a4">setCacheFileOnOpen</a> (asyncload); <font class="comment">// Same as async loading</font>
00089                                 <font class="keywordflow">if</font> (f2.<a class="code" href="classNLMISC_1_1CIFile.html#a3">open</a>(file2))
00090                                 {
00091                                         bitmap.load(f2);
00092                                 }
00093                                 <font class="keywordflow">else</font> <font class="keywordflow">throw</font> EPathNotFound(file2);
00094 
00095                                 <font class="comment">// Texture are the same size ?</font>
00096                                 <font class="keywordflow">if</font> ((dest.<a class="code" href="classNLMISC_1_1CBitmap.html#a6">getWidth</a>() == bitmap.getWidth()) &amp;&amp; (dest.<a class="code" href="classNLMISC_1_1CBitmap.html#a7">getHeight</a>() == bitmap.getHeight()))
00097                                 {
00098                                         <font class="comment">// Convert in Alpha</font>
00099                                         <font class="keywordflow">if</font> (bitmap.convertToType (CBitmap::Alpha))
00100                                         {
00101                                                 <font class="comment">// Compute it</font>
00102                                                 uint8 *userColor = (uint8 *)&amp;(bitmap.getPixels ()[0]);
00103                                                 CRGBA *color = (CRGBA *)&amp;(dest.<a class="code" href="classNLMISC_1_1CBitmap.html#z277_0">getPixels</a> ()[0]);
00104 
00105                                                 <font class="comment">// For each pixel</font>
00106                                                 uint pixelCount = dest.<a class="code" href="classNLMISC_1_1CBitmap.html#a6">getWidth</a>()*dest.<a class="code" href="classNLMISC_1_1CBitmap.html#a7">getHeight</a>();
00107                                                 uint pixel;
00108                                                 <font class="keywordflow">for</font> (pixel = 0; pixel&lt;pixelCount; pixel++)
00109                                                 {
00110                                                         <font class="keywordflow">if</font> (userColor[pixel]==0) 
00111                                                         {
00112                                                                 <font class="comment">// New code: use new restrictions from IDriver.</font>
00113                                                                 <font class="keywordtype">float</font>   Rt, Gt, Bt, At;
00114                                                                 <font class="keywordtype">float</font>   Lt;
00115                                                                 <font class="keywordtype">float</font>   Rtm, Gtm, Btm, Atm;
00116 
00117                                                                 <font class="comment">// read 0-1 RGB pixel.</font>
00118                                                                 Rt= (float)color[pixel].R/255;
00119                                                                 Gt= (float)color[pixel].G/255;
00120                                                                 Bt= (float)color[pixel].B/255;
00121                                                                 Lt= Rt*0.3f + Gt*0.56f + Bt*0.14f;
00122 
00123                                                                 <font class="comment">// take Alpha from userColor src.</font>
00124                                                                 At= (float)userColor[pixel]/255;
00125                                                                 Atm= 1-Lt*(1-At);
00126 
00127                                                                 <font class="comment">// If normal case.</font>
00128                                                                 <font class="keywordflow">if</font>(Atm&gt;0)
00129                                                                 {
00130                                                                         Rtm= Rt*At / Atm;
00131                                                                         Gtm= Gt*At / Atm;
00132                                                                         Btm= Bt*At / Atm;
00133                                                                 }
00134                                                                 <font class="comment">// Else special case: At==0, and Lt==1.</font>
00135                                                                 <font class="keywordflow">else</font>
00136                                                                 {
00137                                                                         Rtm= Gtm= Btm= 0;
00138                                                                 }
00139 
00140                                                                 <font class="comment">// copy to buffer.</font>
00141                                                                 sint    <a class="code" href="driver__opengl__extension__def_8h.html#a385">r</a>,g,b,a;
00142                                                                 <a class="code" href="driver__opengl__extension__def_8h.html#a385">r</a>= (sint)(Rtm*255+0.5f);
00143                                                                 g= (sint)(Gtm*255+0.5f);
00144                                                                 b= (sint)(Btm*255+0.5f);
00145                                                                 a= (sint)(Atm*255+0.5f);
00146                                                                 <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a385">r</a>, 0,255);
00147                                                                 <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(g, 0,255);
00148                                                                 <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(b, 0,255);
00149                                                                 <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(a, 0,255);
00150                                                                 color[pixel].R = (uint8)<a class="code" href="driver__opengl__extension__def_8h.html#a385">r</a>;
00151                                                                 color[pixel].G = (uint8)g;
00152                                                                 color[pixel].B = (uint8)b;
00153                                                                 color[pixel].A = (uint8)a;
00154                                                         }
00155                                                 }
00156                                         }
00157                                         <font class="keywordflow">else</font>
00158                                         {
00159                                                 <a class="code" href="debug_8h.html#a1">nlinfo</a> (<font class="stringliteral">"Can't convert the usercolor texture %s in alpha mode"</font>, file2.c_str());
00160                                         }
00161                                 }
00162                                 <font class="keywordflow">else</font>
00163                                 {
00164                                         <font class="comment">// Error</font>
00165                                         <a class="code" href="debug_8h.html#a1">nlinfo</a> (<font class="stringliteral">"User color texture is not the same size than the texture. (Tex : %s, Usercolor : %s)"</font>, <a class="code" href="cf__lexical_8cpp.html#a95">file</a>.c_str(), file2.c_str());
00166                                 }
00167                         }
00168                 }
00169         }
00170         <font class="keywordflow">catch</font>(EPathNotFound &amp;e)
00171         {
00172                 <font class="comment">// Not found...</font>
00173                 dest.<a class="code" href="classNLMISC_1_1CBitmap.html#a3">makeDummy</a>();
00174                 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"Missing textureFile: %s (%s)"</font>, fileName.c_str(), e.what());
00175         }
00176 }
00177 
00178 
00179 <font class="comment">/*==================================================================*\</font>
00180 <font class="comment">                                                        CTEXTUREFILE</font>
00181 <font class="comment">\*==================================================================*/</font>
00182 
00183 <font class="comment">/*------------------------------------------------------------------*\</font>
00184 <font class="comment">                                                        doGenerate()</font>
00185 <font class="comment">\*------------------------------------------------------------------*/</font>
<a name="l00186"></a><a class="code" href="classNL3D_1_1CTextureFile.html#a11">00186</a> <font class="keywordtype">void</font> CTextureFile::doGenerate()
00187 {
00188         <a class="code" href="classNL3D_1_1CTextureFile.html#d0">buildBitmapFromFile</a>(*<font class="keyword">this</font>, <a class="code" href="classNL3D_1_1CTextureFile.html#o0">_FileName</a>, <a class="code" href="classNL3D_1_1CTextureFile.html#o2">_AsyncLoading</a>, <a class="code" href="classNL3D_1_1CTextureFile.html#o4">_MipMapSkipAtLoad</a>);
00189 }
00190 
00191 <font class="comment">// ***************************************************************************</font>
<a name="l00192"></a><a class="code" href="classNL3D_1_1CTextureFile.html#a12">00192</a> <font class="keywordtype">void</font> CTextureFile::setAsyncLoading (<font class="keywordtype">bool</font> isAsync)
00193 {
00194         <a class="code" href="classNL3D_1_1CTextureFile.html#o2">_AsyncLoading</a> = isAsync;
00195 }
00196 
00197 
00198 <font class="comment">// ***************************************************************************</font>
<a name="l00199"></a><a class="code" href="classNL3D_1_1CTextureFile.html#a13">00199</a> <font class="keywordtype">void</font>    CTextureFile::serial(<a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &amp;f) <font class="keywordflow">throw</font>(NLMISC::EStream)
00200 {
00201         <font class="comment">/*</font>
00202 <font class="comment">        Version 1:</font>
00203 <font class="comment">                - AllowDegradation.</font>
00204 <font class="comment">        Version 0:</font>
00205 <font class="comment">                - base version.</font>
00206 <font class="comment">        */</font>
00207         sint    ver= f.serialVersion(1);
00208 
00209         <font class="comment">// serial the base part of ITexture.</font>
00210         ITexture::serial(f);
00211 
00212         f.serial(_FileName);
00213         <font class="keywordflow">if</font>(ver&gt;=1)
00214                 f.serial(_AllowDegradation);
00215         <font class="keywordflow">else</font> <font class="keywordflow">if</font>(f.isReading())
00216                 _AllowDegradation= <font class="keyword">true</font>;
00217 
00218         <font class="keywordflow">if</font>(f.isReading())
00219                 touch();
00220 }
00221 
00222 
00223 <font class="comment">// ***************************************************************************</font>
<a name="l00224"></a><a class="code" href="classNL3D_1_1CTextureFile.html#a7">00224</a> <font class="keywordtype">void</font>    CTextureFile::setAllowDegradation(<font class="keywordtype">bool</font> allow)
00225 {
00226         <a class="code" href="classNL3D_1_1CTextureFile.html#o1">_AllowDegradation</a>= allow;
00227 }
00228 
00229 <font class="comment">// ***************************************************************************</font>
<a name="l00230"></a><a class="code" href="classNL3D_1_1CTextureFile.html#a1">00230</a> CTextureFile::CTextureFile(<font class="keyword">const</font> CTextureFile &amp;other) : ITexture(other)
00231 {
00232         <a class="code" href="classNL3D_1_1CTextureFile.html#c0">dupInfo</a>(other);
00233 }
00234 
00235 <font class="comment">// ***************************************************************************</font>
<a name="l00236"></a><a class="code" href="classNL3D_1_1CTextureFile.html#a2">00236</a> CTextureFile &amp;CTextureFile::operator = (<font class="keyword">const</font> CTextureFile &amp;other)
00237 {
00238         <font class="comment">// copy base infos</font>
00239         (<a class="code" href="classNL3D_1_1ITexture.html#z825_0">ITexture</a> &amp;) *<font class="keyword">this</font> = (<a class="code" href="classNL3D_1_1ITexture.html#z825_0">ITexture</a> &amp;) other;
00240         <a class="code" href="classNL3D_1_1CTextureFile.html#c0">dupInfo</a>(other);
00241         <font class="keywordflow">return</font> *<font class="keyword">this</font>;
00242 }
00243 
00244 <font class="comment">// ***************************************************************************</font>
<a name="l00245"></a><a class="code" href="classNL3D_1_1CTextureFile.html#c0">00245</a> <font class="keywordtype">void</font> CTextureFile::dupInfo(<font class="keyword">const</font> CTextureFile &amp;other)
00246 {
00247         <a class="code" href="classNL3D_1_1CTextureFile.html#o0">_FileName</a>         = other._FileName;
00248         <a class="code" href="classNL3D_1_1CTextureFile.html#o2">_AsyncLoading</a>     =     other._AsyncLoading;
00249         <a class="code" href="classNL3D_1_1CTextureFile.html#o1">_AllowDegradation</a> = other._AllowDegradation;
00250         <a class="code" href="classNL3D_1_1CTextureFile.html#o3">_SupportSharing</a>   = other._SupportSharing;
00251         <a class="code" href="classNL3D_1_1CTextureFile.html#o4">_MipMapSkipAtLoad</a> = other._MipMapSkipAtLoad; 
00252 }
00253 
00254 
00255 <font class="comment">// ***************************************************************************</font>
<a name="l00256"></a><a class="code" href="classNL3D_1_1CTextureFile.html#a10">00256</a> <font class="keywordtype">void</font>                    CTextureFile::enableSharing(<font class="keywordtype">bool</font> enable)
00257 {
00258         <a class="code" href="classNL3D_1_1CTextureFile.html#o3">_SupportSharing</a> = enable;
00259 }
00260 
00261 <font class="comment">// ***************************************************************************</font>
<a name="l00262"></a><a class="code" href="classNL3D_1_1CTextureFile.html#a15">00262</a> <font class="keywordtype">void</font>                    CTextureFile::setMipMapSkipAtLoad(uint8 <a class="code" href="driver__opengl__extension__def_8h.html#a387">level</a>)
00263 {
00264         <a class="code" href="classNL3D_1_1CTextureFile.html#o4">_MipMapSkipAtLoad</a>= <a class="code" href="driver__opengl__extension__def_8h.html#a387">level</a>;
00265 }
00266 
00267 <font class="comment">// ***************************************************************************</font>
<a name="l00268"></a><a class="code" href="classNL3D_1_1CTextureFile.html#a9">00268</a> std::string             CTextureFile::getShareName()<font class="keyword"> const</font>
00269 <font class="keyword"></font>{
00270         string  ret= <a class="code" href="classNL3D_1_1CTextureFile.html#o0">_FileName</a>;
00271         strlwr(ret);
00272         <font class="keywordflow">return</font> ret;
00273 }
00274 
00275 
00276 } <font class="comment">// NL3D</font>
</pre></div>

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