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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> &dest, <font class="keyword">const</font> std::string &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 && mipMapSkip>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()) && (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 *)&(bitmap.getPixels ()[0]);
00103 CRGBA *color = (CRGBA *)&(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<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>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 &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> &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>=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 &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 &CTextureFile::operator = (<font class="keyword">const</font> CTextureFile &other)
00237 {
00238 <font class="comment">// copy base infos</font>
00239 (<a class="code" href="classNL3D_1_1ITexture.html#z825_0">ITexture</a> &) *<font class="keyword">this</font> = (<a class="code" href="classNL3D_1_1ITexture.html#z825_0">ITexture</a> &) 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 &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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