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<hr><h1>async_texture_manager.cpp</h1><a href="async__texture__manager_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 
00028 <font class="preprocessor">#include "<a class="code" href="async__texture__manager_8h.html">3d/async_texture_manager.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="async__file__manager__3d_8h.html">3d/async_file_manager_3d.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="mesh__base__instance_8h.html">3d/mesh_base_instance.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="driver_8h.html">3d/driver.h</a>"</font>
00032 
00033 
00034 <font class="keyword">using</font>   <font class="keyword">namespace </font>std;
00035 <font class="keyword">using</font>   <font class="keyword">namespace </font>NLMISC;
00036 
00037 <font class="keyword">namespace </font>NL3D 
00038 {
00039 
00040 <font class="comment">// ***************************************************************************</font>
<a name="l00041"></a><a class="code" href="async__texture__manager_8cpp.html#a0">00041</a> <font class="preprocessor">#define NL3D_ATM_MIN_DISTANCE           1.0f</font>
00042 <font class="preprocessor"></font>
00043 <font class="comment">// ***************************************************************************</font>
<a name="l00044"></a><a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureEntry.html#a0">00044</a> CAsyncTextureManager::CTextureEntry::CTextureEntry()
00045 {
00046         <a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureBase.html#n0">IsTextureEntry</a>= <font class="keyword">true</font>;
00047 
00048         <a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureEntry.html#m1">Loaded</a>= <font class="keyword">false</font>;
00049         <a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureEntry.html#m2">UpLoaded</a>= <font class="keyword">false</font>;
00050         <a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureEntry.html#m3">CanHaveLOD</a>= <font class="keyword">false</font>;
00051         <a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureEntry.html#m4">BuildFromHLSManager</a>= <font class="keyword">false</font>;
00052         <a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureEntry.html#m5">HLSManagerTextId</a>= -1;
00053         <a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureEntry.html#m6">BaseSize</a>= 0;
00054         <a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureEntry.html#m9">TotalTextureSizeAsked</a>= 0;
00055 }
00056 
00057 
00058 <font class="comment">// ***************************************************************************</font>
<a name="l00059"></a><a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureEntry.html#a1">00059</a> <font class="keywordtype">void</font>            CAsyncTextureManager::CTextureEntry::createCoarseBitmap()
00060 {
00061         <font class="comment">// the texture must exist.</font>
00062         <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureBase.html#m0">Texture</a>);
00063         <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureBase.html#m0">Texture</a>-&gt;getSize()&gt;0);
00064 
00065         <font class="comment">// copy the bitmap.</font>
00066         <a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureEntry.html#m11">CoarseBitmap</a>= *<a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureBase.html#m0">Texture</a>;
00067         <font class="comment">// remove all mipmaps, and convert to DXTC1 (if possible, ie if was DXTC5 or DXTC3 as example)</font>
00068         <a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureEntry.html#m11">CoarseBitmap</a>.<a class="code" href="classNLMISC_1_1CBitmap.html#a12">releaseMipMaps</a>();
00069         <font class="comment">// TODODO: consersion to DXTC1</font>
00070         <a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureEntry.html#m11">CoarseBitmap</a>.<a class="code" href="classNLMISC_1_1CBitmap.html#a4">convertToType</a>(CBitmap::DXTC1);
00071 }
00072 
00073 
00074 <font class="comment">// ***************************************************************************</font>
<a name="l00075"></a><a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureLod.html#a0">00075</a> CAsyncTextureManager::CTextureLod::CTextureLod()
00076 {
00077         <a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureBase.html#n0">IsTextureEntry</a>= <font class="keyword">false</font>;
00078 
00079         <a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureLod.html#m0">TextureEntry</a>= NULL;
00080         <a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureLod.html#m1">Weight</a>= 0;
00081         <a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureLod.html#m2">Level</a>= 0;
00082         <a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureLod.html#m3">Loaded</a>= <font class="keyword">false</font>;
00083         <a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureLod.html#m4">UpLoaded</a>= <font class="keyword">false</font>;
00084         <a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureLod.html#m5">ExtraSize</a>= 0;
00085 }
00086 
00087 
00088 <font class="comment">// ***************************************************************************</font>
<a name="l00089"></a><a class="code" href="classNL3D_1_1CAsyncTextureManager.html#a1">00089</a> CAsyncTextureManager::~CAsyncTextureManager()
00090 {
00091         <font class="comment">// For all remaining textures, delete them.</font>
00092         <font class="keywordflow">for</font>(uint i=0;i&lt;<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>.size();i++)
00093         {
00094                 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>[i])
00095                         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#c0">deleteTexture</a>(i);
00096         }
00097 
00098         <font class="comment">// there must be no waitting textures, nor map, nor current upload texture</font>
00099         <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o10">_WaitingTextures</a>.empty() &amp;&amp; <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o9">_TextureEntryMap</a>.empty() &amp;&amp; <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o11">_CurrentUploadTexture</a>==NULL 
00100                 &amp;&amp; <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o14">_CurrentTextureLodLoaded</a>==NULL);
00101 }
00102 
00103 <font class="comment">// ***************************************************************************</font>
<a name="l00104"></a><a class="code" href="classNL3D_1_1CAsyncTextureManager.html#a0">00104</a> CAsyncTextureManager::CAsyncTextureManager()
00105 {
00106         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o0">_BaseLodLevel</a>= 3;
00107         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o1">_MaxLodLevel</a>= 1;
00108         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o2">_MaxUploadPerFrame</a>= 65536;
00109         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o3">_MaxHLSColoringPerFrame</a>= 20*1024;
00110         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o11">_CurrentUploadTexture</a>= NULL;
00111         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o4">_MaxTotalTextureSize</a>= 10*1024*1024;
00112         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o5">_TotalTextureSizeAsked</a>= 0;
00113         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o6">_LastTextureSizeGot</a>= 0;
00114 
00115         <font class="comment">// Do not share this texture, to force uploading of the lods.</font>
00116         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o14">_CurrentTextureLodLoaded</a>= NULL;
00117 }
00118 
00119 
00120 <font class="comment">// ***************************************************************************</font>
<a name="l00121"></a><a class="code" href="classNL3D_1_1CAsyncTextureManager.html#a2">00121</a> <font class="keywordtype">void</font>                    CAsyncTextureManager::setupLod(uint baseLevel, uint maxLevel)
00122 {
00123         <a class="code" href="debug_8h.html#a6">nlassert</a>(baseLevel&gt;=maxLevel);
00124         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o0">_BaseLodLevel</a>= baseLevel;
00125         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o1">_MaxLodLevel</a>= maxLevel;
00126 }
00127 
00128 
00129 <font class="comment">// ***************************************************************************</font>
<a name="l00130"></a><a class="code" href="classNL3D_1_1CAsyncTextureManager.html#a3">00130</a> <font class="keywordtype">void</font>                    CAsyncTextureManager::setupMaxUploadPerFrame(uint maxup)
00131 {
00132         <font class="keywordflow">if</font>(maxup&gt;0)
00133                 <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o2">_MaxUploadPerFrame</a>= maxup;
00134 }
00135 
00136 <font class="comment">// ***************************************************************************</font>
<a name="l00137"></a><a class="code" href="classNL3D_1_1CAsyncTextureManager.html#a4">00137</a> <font class="keywordtype">void</font>                    CAsyncTextureManager::setupMaxHLSColoringPerFrame(uint maxCol)
00138 {
00139         <font class="keywordflow">if</font>(maxCol&gt;0)
00140                 <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o3">_MaxHLSColoringPerFrame</a>= maxCol;
00141 }
00142 
00143 <font class="comment">// ***************************************************************************</font>
<a name="l00144"></a><a class="code" href="classNL3D_1_1CAsyncTextureManager.html#a5">00144</a> <font class="keywordtype">void</font>                    CAsyncTextureManager::setupMaxTotalTextureSize(uint maxText)
00145 {
00146         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o4">_MaxTotalTextureSize</a>= maxText;
00147 }
00148 
00149 
00150 <font class="comment">// ***************************************************************************</font>
00151 uint                    CAsyncTextureManager::addTextureRef(<font class="keyword">const</font> string &amp;textNameNotLwr, CMeshBaseInstance *instance)
00152 {
00153         uint    ret;
00154 
00155         <font class="comment">// strlwr name</font>
00156         string  textName= textNameNotLwr;
00157         strlwr(textName);
00158 
00159         <font class="comment">// find the texture in map</font>
00160         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#u1">ItTextureEntryMap</a>       it;
00161         it= <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o9">_TextureEntryMap</a>.find(textName);
00162 
00163         <font class="comment">// not found, create.</font>
00164         <font class="keywordflow">if</font>(it==<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o9">_TextureEntryMap</a>.end())
00165         {
00166                 <font class="comment">// search a free id.</font>
00167                 uint    i= <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>.size();
00168                 <font class="keywordflow">if</font>(!<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o8">_FreeTextureIds</a>.empty())
00169                 {
00170                         i= <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o8">_FreeTextureIds</a>.back();
00171                         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o8">_FreeTextureIds</a>.pop_back();
00172                 }
00173                 <font class="comment">// resize if needed.</font>
00174                 <font class="keywordflow">if</font>(i&gt;=<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>.size())
00175                 {
00176                         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>.push_back(NULL);
00177                         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o8">_FreeTextureIds</a>.reserve(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>.capacity());
00178                 }
00179 
00180                 <font class="comment">// alloc new.</font>
00181                 CTextureEntry   *text= <font class="keyword">new</font> CTextureEntry();
00182                 <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>[i]= text;
00183                 text-&gt;Texture= <font class="keyword">new</font> CTextureFile;
00184                 <font class="comment">// Do not allow degradation.</font>
00185                 text-&gt;Texture-&gt;setAllowDegradation(<font class="keyword">false</font>);
00186 
00187                 <font class="comment">// add to map.</font>
00188                 it= <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o9">_TextureEntryMap</a>.insert(make_pair(textName, i)).first;
00189                 <font class="comment">// bkup the it for deletion</font>
00190                 text-&gt;ItMap= it;
00191 
00192                 <font class="comment">// Start Color or Async loading.</font>
00193                 text-&gt;Texture-&gt;setFileName(textName);
00194                 <font class="comment">// First try with the HLSManager</font>
00195                 sint    colorTextId= <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#m0">HLSManager</a>.findTexture(textName);
00196                 <font class="comment">// If found</font>
00197                 <font class="keywordflow">if</font>(colorTextId!=-1)
00198                 {
00199                         <font class="comment">// Mark the texture as Loaded, and ready to colorize (done in update()).</font>
00200                         text-&gt;Loaded= <font class="keyword">true</font>;
00201                         text-&gt;BuildFromHLSManager= <font class="keyword">true</font>;
00202                         text-&gt;HLSManagerTextId= colorTextId;
00203                 }
00204                 <font class="comment">// else must async load it.</font>
00205                 <font class="keywordflow">else</font>
00206                 {
00207                         <font class="comment">// start to load a small DDS version if possible</font>
00208                         text-&gt;Texture-&gt;setMipMapSkipAtLoad(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o0">_BaseLodLevel</a>);
00209                         <font class="comment">// load it async.</font>
00210                         CAsyncFileManager3D::getInstance().loadTexture(text-&gt;Texture, &amp;text-&gt;Loaded);
00211                 }
00212                 <font class="comment">// Add to a list so we can check each frame if it has ended.</font>
00213                 <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o10">_WaitingTextures</a>.push_back(i);
00214         }
00215 
00216         <font class="comment">// get the id of the text entry.</font>
00217         ret= it-&gt;second;
00218 
00219         <font class="comment">// add this instance to the list of ones which use this texture.</font>
00220         CTextureEntry   *text= <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>[ret];
00221         text-&gt;Instances.push_back(instance);
00222 
00223         <font class="comment">// if the texture is not yet ready, must increment the instance refCount.</font>
00224         <font class="keywordflow">if</font>(!text-&gt;UpLoaded)
00225                 instance-&gt;_AsyncTextureToLoadRefCount++;
00226 
00227         <font class="keywordflow">return</font> ret;
00228 }
00229 
00230 
00231 <font class="comment">// ***************************************************************************</font>
<a name="l00232"></a><a class="code" href="classNL3D_1_1CAsyncTextureManager.html#c0">00232</a> <font class="keywordtype">void</font>                    CAsyncTextureManager::deleteTexture(uint <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>)
00233 {
00234         CTextureEntry   *text= <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>[<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>];
00235 
00236 
00237         <font class="comment">// **** Stop AsyncLoading/UpLoading of main texture.</font>
00238 
00239         <font class="comment">// stop async loading if not ended</font>
00240         <font class="keywordflow">if</font>(!text-&gt;Loaded)
00241         {
00242                 CAsyncFileManager3D::getInstance().cancelLoadTexture(text-&gt;Texture);
00243         }
00244 
00245         <font class="comment">// remove map entry</font>
00246         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o9">_TextureEntryMap</a>.erase(text-&gt;ItMap);
00247 
00248         <font class="comment">// remove in list of waiting textures</font>
00249         vector&lt;uint&gt;::iterator  itWait= find(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o10">_WaitingTextures</a>.begin(),<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o10">_WaitingTextures</a>.end(), <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>);
00250         <font class="keywordflow">if</font>(itWait!=<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o10">_WaitingTextures</a>.end())
00251                 <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o10">_WaitingTextures</a>.erase(itWait);
00252 
00253         <font class="comment">// If it was the currently uploaded one, abort</font>
00254         <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o11">_CurrentUploadTexture</a>==text)
00255         {
00256                 <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o11">_CurrentUploadTexture</a>= NULL;
00257         }
00258 
00259         <font class="comment">// If not uploaded.</font>
00260         <font class="keywordflow">if</font>(!text-&gt;UpLoaded)
00261         {
00262                 <font class="comment">// For all its remainding instances, dec refcount</font>
00263                 <font class="keywordflow">for</font>(uint i=0;i&lt;text-&gt;Instances.size();i++)
00264                 {
00265                         text-&gt;Instances[i]-&gt;_AsyncTextureToLoadRefCount--;
00266                 }
00267         }
00268 
00269         <font class="comment">// remove from bench</font>
00270         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o5">_TotalTextureSizeAsked</a>-= text-&gt;TotalTextureSizeAsked;
00271 
00272 
00273         <font class="comment">// **** Stop AsyncLoading/UpLoading of HDLod 's texture.</font>
00274 
00275         <font class="comment">// Check if must stop TextureLod loading/uploading.</font>
00276         CTextureLod             *textLod= &amp;text-&gt;HDLod;
00277         <font class="keywordflow">if</font>(textLod==<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o14">_CurrentTextureLodLoaded</a>)
00278         {
00279                 <font class="comment">// stop the async loading if not ended.</font>
00280                 <font class="keywordflow">if</font>(!textLod-&gt;Loaded)
00281                 {
00282                         CAsyncFileManager3D::getInstance().cancelLoadTexture(textLod-&gt;Texture);
00283                 }
00284                 <font class="comment">// stop uploading if was me</font>
00285                 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o11">_CurrentUploadTexture</a>==textLod)
00286                 {
00287                         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o11">_CurrentUploadTexture</a>= NULL;
00288                 }
00289                 <font class="comment">// stop loading me.</font>
00290                 <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o14">_CurrentTextureLodLoaded</a>= NULL;
00291         }
00292 
00293         <font class="comment">// At last delete texture entry.</font>
00294         <font class="keyword">delete</font> text;
00295         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>[<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>]= NULL;
00296         <font class="comment">// add a new free id.</font>
00297         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o8">_FreeTextureIds</a>.push_back(<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>);
00298 }
00299 
00300 
00301 <font class="comment">// ***************************************************************************</font>
<a name="l00302"></a><a class="code" href="classNL3D_1_1CAsyncTextureManager.html#a7">00302</a> <font class="keywordtype">void</font>                    CAsyncTextureManager::releaseTexture(uint <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>, CMeshBaseInstance *instance)
00303 {
00304         <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>&lt;<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>.size());
00305         <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>[<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>]);
00306 
00307         <font class="comment">// find an instance in this texture an remove it.</font>
00308         CTextureEntry   *text= <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>[<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>];
00309         uint                    instSize= text-&gt;Instances.size();
00310         <font class="keywordflow">for</font>(uint i=0;i&lt;instSize;i++)
00311         {
00312                 <font class="keywordflow">if</font>(text-&gt;Instances[i]== instance)
00313                 {
00314                         <font class="comment">// Must first release the refCount if the texture is not uploaded</font>
00315                         <font class="keywordflow">if</font>(!text-&gt;UpLoaded)
00316                                 text-&gt;Instances[i]-&gt;_AsyncTextureToLoadRefCount--;
00317                         <font class="comment">// remove it by swapping with last texture</font>
00318                         text-&gt;Instances[i]= text-&gt;Instances[instSize-1];
00319                         text-&gt;Instances.pop_back();
00320                         <font class="comment">// must stop: remove only the first occurence of instance.</font>
00321                         <font class="keywordflow">break</font>;
00322                 }
00323         }
00324 
00325         <font class="comment">// if no more instance occurence, the texture is no more used =&gt; release it.</font>
00326         <font class="keywordflow">if</font>(text-&gt;Instances.empty())
00327         {
00328                 <font class="comment">// do all the good stuff</font>
00329                 <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#c0">deleteTexture</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>);
00330         }
00331 }
00332 
00333 <font class="comment">// ***************************************************************************</font>
<a name="l00334"></a><a class="code" href="classNL3D_1_1CAsyncTextureManager.html#a8">00334</a> <font class="keywordtype">bool</font>                    CAsyncTextureManager::isTextureUpLoaded(uint <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>)<font class="keyword"> const</font>
00335 <font class="keyword"></font>{
00336         <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>&lt;<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>.size());
00337         <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>[<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>]);
00338         <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>[<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>]-&gt;UpLoaded;
00339 }
00340 
00341 
00342 <font class="comment">// ***************************************************************************</font>
<a name="l00343"></a><a class="code" href="classNL3D_1_1CAsyncTextureManager.html#a9">00343</a> <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CBitmap.html">NLMISC::CBitmap</a>   *CAsyncTextureManager::getCoarseBitmap(uint <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>)<font class="keyword"> const</font>
00344 <font class="keyword"></font>{
00345         <font class="keywordflow">if</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>&gt;=<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>.size())
00346                 <font class="keywordflow">return</font> NULL;
00347         CTextureEntry   *textEntry= <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>[<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>];
00348         <font class="keywordflow">if</font>(!textEntry)
00349                 <font class="keywordflow">return</font> NULL;
00350 
00351         <font class="comment">// if the textEntry not uploaded, return NULL</font>
00352         <font class="keywordflow">if</font>(!textEntry-&gt;UpLoaded)
00353                 <font class="keywordflow">return</font> NULL;
00354 
00355         <font class="comment">// ok return the CoarseBitmap</font>
00356         <font class="keywordflow">return</font> &amp;textEntry-&gt;CoarseBitmap;
00357 }
00358 
00359 
00360 <font class="comment">// ***************************************************************************</font>
<a name="l00361"></a><a class="code" href="classNL3D_1_1CAsyncTextureManager.html#a10">00361</a> <font class="keywordtype">void</font>                    CAsyncTextureManager::update(IDriver *pDriver)
00362 {
00363         uint    nTotalUploaded = 0;
00364         uint    nTotalColored = 0;
00365 
00366         <font class="comment">// if no texture to upload, get the next one</font>
00367         <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o11">_CurrentUploadTexture</a>==NULL)
00368                 <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#c1">getNextTextureToUpLoad</a>(nTotalColored, pDriver);
00369 
00370         <font class="comment">// while some texture to upload</font>
00371         <font class="keywordflow">while</font>(_CurrentUploadTexture)
00372         {
00373                 ITexture        *pText= <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o11">_CurrentUploadTexture</a>-&gt;<a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureBase.html#m0">Texture</a>;
00374                 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#c2">uploadTexturePart</a>(pText, pDriver, nTotalUploaded))
00375                 {
00376                         <font class="comment">// Stuff for TextureEntry</font>
00377                         <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o11">_CurrentUploadTexture</a>-&gt;<a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureBase.html#a0">isTextureEntry</a>())
00378                         {
00379                                 uint    i;
00380                                 CTextureEntry   *textEntry= static_cast&lt;CTextureEntry*&gt;(_CurrentUploadTexture);
00381                                 <font class="comment">// If we are here, the texture is finally entirely uploaded. Compile it!</font>
00382                                 textEntry-&gt;UpLoaded= <font class="keyword">true</font>;
00383                                 <font class="comment">// Can Have lod if texture is DXTC and have mipMaps! Also disalbe if system disable it</font>
00384                                 textEntry-&gt;CanHaveLOD= <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#f0">validDXTCMipMap</a>(pText) &amp;&amp; <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o0">_BaseLodLevel</a>&gt;<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o1">_MaxLodLevel</a>;
00385                                 <font class="comment">// compute the size it takes in VRAM</font>
00386                                 uint    baseMipMapSize= pText-&gt;getSize(0)*CBitmap::bitPerPixels[pText-&gt;getPixelFormat()]/8;
00387                                 <font class="comment">// full size with mipmap</font>
00388                                 textEntry-&gt;BaseSize= (uint)(baseMipMapSize*1.33f);
00389                                 <font class="comment">// UpLoaded !! =&gt; signal all instances.</font>
00390                                 <font class="keywordflow">for</font>(i=0;i&lt;textEntry-&gt;Instances.size();i++)
00391                                 {
00392                                         textEntry-&gt;Instances[i]-&gt;_AsyncTextureToLoadRefCount--;
00393                                 }
00394 
00395                                 <font class="comment">// Create the coarse bitmap with the text (NB: still in memory here)</font>
00396                                 textEntry-&gt;createCoarseBitmap();
00397 
00398                                 <font class="comment">// If CanHaveLOD, create now the lods entries.</font>
00399                                 <font class="keywordflow">if</font>(textEntry-&gt;CanHaveLOD)
00400                                 {
00401                                         <font class="comment">/* Allow only the MaxLod to be loaded async</font>
00402 <font class="comment">                                                This is supposed to be faster since a fseek is much longer than a texture Read.</font>
00403 <font class="comment">                                                Then it is more intelligent to read only One texture (the High Def), than to try to</font>
00404 <font class="comment">                                                read intermediate ones (512, 256, 128) because this made 3 more fseek.</font>
00405 <font class="comment">                                        */</font>
00406                                         <font class="comment">// create only the MaxLod possible entry</font>
00407                                         CTextureLod             &amp;textLod= textEntry-&gt;HDLod;
00408                                         <font class="comment">// fill textLod</font>
00409                                         textLod.TextureEntry= textEntry;
00410                                         textLod.Level= <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o1">_MaxLodLevel</a>;
00411                                         <font class="comment">// extra size of the lod only (important for LoadBalacing in updateTextureLodSystem())</font>
00412                                         textLod.ExtraSize= textEntry-&gt;BaseSize*(1&lt;&lt;(2*(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o0">_BaseLodLevel</a>-<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o1">_MaxLodLevel</a>))) - textEntry-&gt;BaseSize;
00413                                         <font class="comment">// not yet loaded/upLoaded</font>
00414                                         textLod.Loaded= <font class="keyword">false</font>;
00415                                         textLod.UpLoaded= <font class="keyword">false</font>;
00416                                 }
00417 
00418                                 <font class="comment">// compute texture size for bench</font>
00419                                 textEntry-&gt;TotalTextureSizeAsked= textEntry-&gt;BaseSize + textEntry-&gt;HDLod.ExtraSize;
00420 
00421                                 <font class="comment">// Add texture size to global texture size</font>
00422                                 <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o5">_TotalTextureSizeAsked</a>+= textEntry-&gt;TotalTextureSizeAsked;
00423                         }
00424                         <font class="comment">// else, stuff for textureLod.</font>
00425                         <font class="keywordflow">else</font>
00426                         {
00427                                 CTextureLod             *textLod= static_cast&lt;CTextureLod*&gt;(_CurrentUploadTexture);
00428                                 <font class="comment">// Swap the uploaded Driver Handle with the Main texture.</font>
00429                                 pDriver-&gt;swapTextureHandle(*textLod-&gt;Texture, *textLod-&gt;TextureEntry-&gt;Texture);
00430                                 <font class="comment">// Flag the Lod.</font>
00431                                 textLod-&gt;UpLoaded= <font class="keyword">true</font>;
00432                                 <font class="comment">// Ok, ended to completly load this textureLod.</font>
00433                                 <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o14">_CurrentTextureLodLoaded</a>= NULL;
00434                         }
00435 
00436                         <font class="comment">// finally uploaded in VRAM, can release the RAM texture memory</font>
00437                         pText-&gt;release();
00438 
00439                         <font class="comment">// if not break because can't upload all parts, get next texture to upload</font>
00440                         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o11">_CurrentUploadTexture</a>= NULL;
00441                         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#c1">getNextTextureToUpLoad</a>(nTotalColored, pDriver);
00442                 }
00443                 <font class="keywordflow">else</font>
00444                         <font class="comment">// Fail to upload all, abort.</font>
00445                         <font class="keywordflow">return</font>;
00446         }
00447 }
00448 
00449 
00450 <font class="comment">// ***************************************************************************</font>
<a name="l00451"></a><a class="code" href="classNL3D_1_1CAsyncTextureManager.html#c2">00451</a> <font class="keywordtype">bool</font>                    CAsyncTextureManager::uploadTexturePart(ITexture *pText, IDriver *pDriver, uint &amp;nTotalUploaded)
00452 {
00453         uint            nMipMap;
00454         nMipMap = pText-&gt;getMipMapCount();
00455 
00456 
00457         <font class="comment">// If this is the start of uploading, setup the texture in driver.</font>
00458         <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o12">_CurrentUploadTextureMipMap</a>==0 &amp;&amp; <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o13">_CurrentUploadTextureLine</a>==0)
00459         {
00460                 <font class="comment">// If the texture is not a valid DXTC with mipmap</font>
00461                 <font class="keywordflow">if</font>(!<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#f0">validDXTCMipMap</a>(pText))
00462                 {
00463                         <font class="comment">/* For now, prefer do nothing, because this may be an error (texture not found)</font>
00464 <font class="comment">                                and the texture may not be used at all, so don't take VRAM for nothing.</font>
00465 <font class="comment">                                =&gt; if the texture is used, it will be loaded synchronously by the caller later in the process</font>
00466 <font class="comment">                                =&gt; frame freeze.</font>
00467 <font class="comment">                        */</font>
00468                         <font class="comment">/*</font>
00469 <font class="comment">                        // upload All now.</font>
00470 <font class="comment">                        // MipMap generation and compression may be done here =&gt; Maybe Big Freeze.</font>
00471 <font class="comment">                        // approximate*2 instead of *1.33 for mipmaps.</font>
00472 <font class="comment">                        uint    nWeight = pText-&gt;getSize (0) * 2;</font>
00473 <font class="comment">                        nWeight= (nWeight*CBitmap::bitPerPixels[pText-&gt;getPixelFormat()])/8;</font>
00474 <font class="comment">                        nTotalUploaded+= nWeight;</font>
00475 <font class="comment">                        pDriver-&gt;setupTexture(*pText);</font>
00476 <font class="comment">                        return true;*/</font>
00477                         <font class="keywordflow">return</font> <font class="keyword">true</font>;
00478                 }
00479                 <font class="keywordflow">else</font>
00480                 {
00481                         <font class="comment">// Create the texture only and do not upload anything</font>
00482                         <font class="keywordtype">bool</font> isRel = pText-&gt;getReleasable ();
00483                         pText-&gt;setReleasable (<font class="keyword">false</font>);
00484                         <font class="keywordtype">bool</font> isAllUploaded = <font class="keyword">false</font>;
00485                         <font class="comment">/* Even if the shared texture is still referenced and so still exist in driver, we MUST recreate with good size</font>
00486 <font class="comment">                                the texture. This is important for Texture Memory Load Balancing</font>
00487 <font class="comment">                                (this may means that is used elsewhere than in the CAsyncTextureManager)</font>
00488 <font class="comment">                                Hence: bMustRecreateSharedTexture==true</font>
00489 <font class="comment">                        */</font>
00490                         pDriver-&gt;setupTextureEx (*pText, <font class="keyword">false</font>, isAllUploaded, <font class="keyword">true</font>);
00491                         pText-&gt;setReleasable (isRel);
00492                         <font class="comment">// if the texture is already uploaded, abort partial uploading.</font>
00493                         <font class="keywordflow">if</font> (isAllUploaded)
00494                                 <font class="keywordflow">return</font> <font class="keyword">true</font>;
00495                 }
00496         }
00497 
00498 
00499         <font class="comment">// try to upload all mipmap</font>
00500         <font class="keywordflow">for</font>(; <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o12">_CurrentUploadTextureMipMap</a>&lt;nMipMap; <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o12">_CurrentUploadTextureMipMap</a>++)
00501         {
00502                 CRect zeRect;
00503                 uint nMM= <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o12">_CurrentUploadTextureMipMap</a>;
00504 
00505                 <font class="comment">// What is left to upload ?</font>
00506                 uint    nWeight = pText-&gt;getSize (nMM) - <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o13">_CurrentUploadTextureLine</a>*pText-&gt;getWidth(nMM);
00507                 nWeight= (nWeight*CBitmap::bitPerPixels[pText-&gt;getPixelFormat()])/8;
00508 
00509                 <font class="keywordflow">if</font> ((nTotalUploaded  + nWeight) &gt; <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o2">_MaxUploadPerFrame</a>)
00510                 {
00511                         <font class="comment">// We cannot upload the whole mipmap -&gt; we have to cut it</font>
00512                         uint nSizeToUpload = <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o2">_MaxUploadPerFrame</a> - nTotalUploaded ;
00513                         uint nLineWeight = (pText-&gt;getWidth(nMM)*CBitmap::bitPerPixels[pText-&gt;getPixelFormat()])/8;
00514                         uint nNbLineToUpload = nSizeToUpload / nLineWeight;
00515                         <font class="comment">// Upload 4 line by 4 line, and upload at leat one 4*line.</font>
00516                         nNbLineToUpload = nNbLineToUpload / 4;
00517                         nNbLineToUpload= max(nNbLineToUpload, 1U);
00518                         nNbLineToUpload *= 4;
00519                         <font class="comment">// comput rect to upload</font>
00520                         uint32 nNewLine = <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o13">_CurrentUploadTextureLine</a> + nNbLineToUpload;
00521                         nNewLine= <a class="code" href="bit__set_8cpp.html#a0">min</a>(nNewLine, pText-&gt;getHeight(nMM));
00522                         zeRect.set (0, <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o13">_CurrentUploadTextureLine</a>, pText-&gt;getWidth(nMM), nNewLine);
00523                         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o13">_CurrentUploadTextureLine</a> = nNewLine;
00524                         <font class="comment">// if fill all the mipmap, must go to next</font>
00525                         <font class="keywordflow">if</font> (<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o13">_CurrentUploadTextureLine</a> == pText-&gt;getHeight(nMM))
00526                         {
00527                                 <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o13">_CurrentUploadTextureLine</a> = 0;
00528                                 <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o12">_CurrentUploadTextureMipMap</a>++;
00529                         }
00530                 }
00531                 <font class="keywordflow">else</font>
00532                 {
00533                         <font class="comment">// We can upload the whole mipmap (or the whole rest of the mipmap)</font>
00534                         zeRect.set (0, <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o13">_CurrentUploadTextureLine</a>, pText-&gt;getWidth(nMM), pText-&gt;getHeight(nMM));
00535                         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o13">_CurrentUploadTextureLine</a>= 0;
00536                 }
00537 
00538                 <font class="comment">// upload the texture </font>
00539                 pDriver-&gt;uploadTexture (*pText, zeRect, (uint8)nMM);
00540 
00541                 nTotalUploaded += nWeight;
00542                 <font class="comment">// If outpass max allocated upload, abort.</font>
00543                 <font class="keywordflow">if</font> (nTotalUploaded &gt; <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o2">_MaxUploadPerFrame</a>)
00544                         <font class="keywordflow">return</font> <font class="keyword">false</font>;
00545         }
00546 
00547         <font class="keywordflow">return</font> <font class="keyword">true</font>;
00548 }
00549 
00550 
00551 <font class="comment">// ***************************************************************************</font>
<a name="l00552"></a><a class="code" href="classNL3D_1_1CAsyncTextureManager.html#c1">00552</a> <font class="keywordtype">void</font>                    CAsyncTextureManager::getNextTextureToUpLoad(uint &amp;nTotalColored, IDriver *pDriver)
00553 {
00554         <font class="comment">// Reset texture uploading</font>
00555         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o11">_CurrentUploadTexture</a>= NULL;
00556         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o12">_CurrentUploadTextureMipMap</a>= 0;
00557         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o13">_CurrentUploadTextureLine</a>= 0;
00558 
00559         <font class="comment">// Search in WaitingTextures if one has ended async loading</font>
00560         vector&lt;uint&gt;::iterator  it;
00561         <font class="keywordflow">for</font>(it=<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o10">_WaitingTextures</a>.begin();it!=<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o10">_WaitingTextures</a>.end();it++)
00562         {
00563                 CTextureEntry   *text= <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>[*it];
00564                 <font class="comment">// If Async loading done.</font>
00565                 <font class="keywordflow">if</font>(text-&gt;Loaded)
00566                 {
00567                         <font class="comment">// Is it a "texture to color" with HLSManager? yes=&gt; color it now.</font>
00568                         <font class="keywordflow">if</font>(text-&gt;BuildFromHLSManager)
00569                         {
00570                                 <font class="comment">// If not beyond the max coloring texture</font>
00571                                 <font class="keywordflow">if</font>(nTotalColored&lt;<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o3">_MaxHLSColoringPerFrame</a>)
00572                                 {
00573                                         <font class="comment">// Build the texture directly in the TextureFile.</font>
00574                                         <a class="code" href="debug_8h.html#a9">nlverify</a>(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#m0">HLSManager</a>.buildTexture(text-&gt;HLSManagerTextId, *text-&gt;Texture));
00575                                         <font class="comment">// Must validate the textureFile generation. NB: little weird since this is not really a textureFile.</font>
00576                                         <font class="comment">// But it is the easier way to do it.</font>
00577                                         text-&gt;Texture-&gt;validateGenerateFlag();
00578                                         <font class="comment">// compute the texture size (approx). NB: DXTC5 means 1 pixel==1 byte.</font>
00579                                         uint    size= (uint)(text-&gt;Texture-&gt;getSize(0)*1.33);
00580                                         <font class="comment">// Add it to the num of colorised texture done in current update().</font>
00581                                         nTotalColored+= size;
00582                                 }
00583                                 <font class="comment">// Else must quit and don't update any more texture this frame (_CurrentUploadTexture==NULL)</font>
00584                                 <font class="keywordflow">else</font>
00585                                         <font class="keywordflow">return</font>;
00586                         }
00587 
00588                         <font class="comment">// upload this one</font>
00589                         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o11">_CurrentUploadTexture</a>= text;
00590                         <font class="comment">// remove it from list of waiting textures</font>
00591                         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o10">_WaitingTextures</a>.erase(it);
00592                         <font class="comment">// found =&gt; end.</font>
00593                         <font class="keywordflow">return</font>;
00594                 }
00595         }
00596 
00597         <font class="comment">// If here, and if no more waiting textures, update the Lod system.</font>
00598         <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o10">_WaitingTextures</a>.empty())
00599         {
00600                 <font class="comment">// if end to load the current lod.</font>
00601                 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o14">_CurrentTextureLodLoaded</a> &amp;&amp; <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o14">_CurrentTextureLodLoaded</a>-&gt;<a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureLod.html#m3">Loaded</a>)
00602                 {
00603                         <font class="comment">// upload this one</font>
00604                         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o11">_CurrentUploadTexture</a>= <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o14">_CurrentTextureLodLoaded</a>;
00605                         <font class="keywordflow">return</font>;
00606                 }
00607 
00608                 <font class="comment">// if no Lod texture currently loading, try to load/unload one</font>
00609                 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o14">_CurrentTextureLodLoaded</a> == NULL)
00610                 {
00611                         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#c3">updateTextureLodSystem</a>(pDriver);
00612                 }
00613         }
00614 }
00615 
00616 
00617 <font class="comment">// ***************************************************************************</font>
<a name="l00618"></a><a class="code" href="classNL3D_1_1CAsyncTextureManager.html#f0">00618</a> <font class="keywordtype">bool</font>                    CAsyncTextureManager::validDXTCMipMap(ITexture *pText)
00619 {
00620         <font class="keywordflow">return</font> pText-&gt;getMipMapCount()&gt;1 &amp;&amp; (
00621                 pText-&gt;getPixelFormat() == CBitmap::DXTC1 ||
00622                 pText-&gt;getPixelFormat() == CBitmap::DXTC1Alpha ||
00623                 pText-&gt;getPixelFormat() == CBitmap::DXTC3 ||
00624                 pText-&gt;getPixelFormat() == CBitmap::DXTC5 );
00625 }
00626 
00627 
00628 <font class="comment">// ***************************************************************************</font>
<a name="l00629"></a><a class="code" href="classNL3D_1_1CAsyncTextureManager.html#c3">00629</a> <font class="keywordtype">void</font>                    CAsyncTextureManager::updateTextureLodSystem(IDriver *pDriver)
00630 {
00631         sint    i;
00632 
00633         <font class="comment">// the array to sort</font>
00634         <font class="keyword">static</font>  vector&lt;CTextureLod*&gt;    lodArray;
00635         lodArray.clear();
00636         uint    reserveSize= 0;
00637 
00638         <font class="comment">// for each texture entry compute min distance of use</font>
00639         <font class="comment">//=============</font>
00640         uint    currentBaseSize= 0;
00641         <font class="keywordflow">for</font>(i=0;i&lt;(sint)<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>.size();i++)
00642         {
00643                 <font class="keywordflow">if</font>(!<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>[i])
00644                         <font class="keywordflow">continue</font>;
00645                 CTextureEntry   &amp;text= *<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>[i];
00646                 <font class="comment">// do it only for Lodable textures</font>
00647                 <font class="keywordflow">if</font>(text.CanHaveLOD)
00648                 {
00649                         text.MinDistance= FLT_MAX;
00650                         <font class="comment">// for all instances.</font>
00651                         <font class="keywordflow">for</font>(uint j=0;j&lt;text.Instances.size();j++)
00652                         {
00653                                 <font class="keywordtype">float</font>   instDist= text.Instances[j]-&gt;getAsyncTextureDistance();
00654                                 text.MinDistance= <a class="code" href="bit__set_8cpp.html#a0">min</a>(text.MinDistance, instDist);
00655                         }
00656 
00657                         <font class="comment">// avoid /0</font>
00658                         text.MinDistance= max(<a class="code" href="async__texture__manager_8cpp.html#a0">NL3D_ATM_MIN_DISTANCE</a>, text.MinDistance);
00659 
00660                         <font class="comment">// how many textLods to add</font>
00661                         reserveSize++;
00662 
00663                         <font class="comment">// the minimum mem size the system take with base lod.</font>
00664                         currentBaseSize+= text.BaseSize;
00665                 }
00666         }
00667         <font class="comment">// reserve space</font>
00668         lodArray.reserve(reserveSize);
00669 
00670 
00671         <font class="comment">// for each texture lod compute weight, and append</font>
00672         <font class="comment">//=============</font>
00673         <font class="keywordflow">for</font>(i=0;i&lt;(sint)<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>.size();i++)
00674         {
00675                 <font class="keywordflow">if</font>(!<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>[i])
00676                         <font class="keywordflow">continue</font>;
00677                 CTextureEntry   &amp;text= *<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o7">_TextureEntries</a>[i];
00678                 <font class="comment">// do it only for Lodable textures</font>
00679                 <font class="keywordflow">if</font>(text.CanHaveLOD)
00680                 {
00681                         <font class="comment">// This Weight is actually a screen Pixel Ratio! (divide by distance)</font>
00682                         CTextureLod     *textLod= &amp;text.HDLod;
00683                         textLod-&gt;Weight= (1&lt;&lt;textLod-&gt;Level) / text.MinDistance;
00684                         <font class="comment">// add to array</font>
00685                         lodArray.push_back(textLod);
00686                 }
00687         }
00688 
00689 
00690         <font class="comment">// sort</font>
00691         <font class="comment">//=============</font>
00692         CPredTextLod    pred;
00693         sort(lodArray.begin(), lodArray.end(), pred);
00694 
00695 
00696         <font class="comment">// Compute lod to load/unload</font>
00697         <font class="comment">//=============</font>
00698         <font class="comment">// Compute Pivot, ie what lods have to be loaded, and what lods do not</font>
00699         uint    pivot= 0;
00700         uint    currentWantedSize= currentBaseSize;
00701         uint    currentLoadedSize= currentBaseSize;
00702         <font class="keywordflow">for</font>(i=lodArray.size()-1;i&gt;=0;i--)
00703         {
00704                 uint    lodSize= lodArray[i]-&gt;ExtraSize;
00705                 currentWantedSize+= lodSize;
00706                 <font class="keywordflow">if</font>(lodArray[i]-&gt;UpLoaded)
00707                         currentLoadedSize+= lodSize;
00708                 <font class="comment">// if &gt; max allowed, stop the pivot here. NB: the pivot is included in the "must load them" part.</font>
00709                 <font class="keywordflow">if</font>(currentWantedSize &gt; <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o4">_MaxTotalTextureSize</a>)
00710                 {
00711                         pivot= i;
00712                         <font class="keywordflow">break</font>;
00713                 }
00714         }
00715         <font class="comment">// continue to count currentLoadedSize</font>
00716         <font class="keywordflow">for</font>(;i&gt;=0;i--)
00717         {
00718                 <font class="keywordflow">if</font>(lodArray[i]-&gt;UpLoaded)
00719                         currentLoadedSize+= lodArray[i]-&gt;ExtraSize;
00720         }
00721         <font class="comment">// save bench.</font>
00722         <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o6">_LastTextureSizeGot</a>= currentLoadedSize;
00723 
00724 
00725         <font class="comment">// if the loadedSize is inferior to the wanted size, we can load a new LOD</font>
00726         CTextureLod             *textLod= NULL;
00727         <font class="keywordtype">bool</font>                    unload;
00728         <font class="keywordflow">if</font>(currentLoadedSize&lt;currentWantedSize)
00729         {
00730                 unload= <font class="keyword">false</font>;
00731                 <font class="comment">// search from end of the list to pivot (included), the first LOD (ie the most important) to load.</font>
00732                 <font class="keywordflow">for</font>(i=lodArray.size()-1;i&gt;=(sint)pivot;i--)
00733                 {
00734                         <font class="keywordflow">if</font>(!lodArray[i]-&gt;UpLoaded)
00735                         {
00736                                 textLod= lodArray[i];
00737                                 <font class="keywordflow">break</font>;
00738                         }
00739                 }
00740                 <font class="comment">// One must have been found, since currentLoadedSize&lt;currentWantedSize</font>
00741                 <a class="code" href="debug_8h.html#a6">nlassert</a>(textLod);
00742         }
00743         <font class="keywordflow">else</font>
00744         {
00745                 unload= <font class="keyword">true</font>;
00746                 <font class="comment">// search from start to pivot (exclued), the first LOD (ie the less important) to unload.</font>
00747                 <font class="keywordflow">for</font>(i=0;i&lt;(sint)pivot;i++)
00748                 {
00749                         <font class="keywordflow">if</font>(lodArray[i]-&gt;UpLoaded)
00750                         {
00751                                 textLod= lodArray[i];
00752                                 <font class="keywordflow">break</font>;
00753                         }
00754                 }
00755                 <font class="comment">// it is possible that not found here. It means that All is Ok!!</font>
00756                 <font class="keywordflow">if</font>(textLod==NULL)
00757                         <font class="comment">// no-op.</font>
00758                         <font class="keywordflow">return</font>;
00759         }
00760 
00761 
00762         <font class="comment">// load/unload</font>
00763         <font class="comment">//=============</font>
00764         <font class="keywordflow">if</font>(!unload)
00765         {
00766                 <font class="comment">// create a new TextureFile, with no sharing system.</font>
00767                 <a class="code" href="debug_8h.html#a6">nlassert</a>(textLod-&gt;Texture==NULL);
00768                 textLod-&gt;Texture= <font class="keyword">new</font> CTextureFile;
00769                 <font class="comment">// Do not allow degradation.</font>
00770                 textLod-&gt;Texture-&gt;setAllowDegradation(<font class="keyword">false</font>);
00771                 textLod-&gt;Texture-&gt;enableSharing(<font class="keyword">false</font>);
00772                 textLod-&gt;Texture-&gt;setFileName(textLod-&gt;TextureEntry-&gt;Texture-&gt;getFileName());
00773                 textLod-&gt;Texture-&gt;setMipMapSkipAtLoad(textLod-&gt;Level);
00774                 <font class="comment">// setup async loading</font>
00775                 <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o14">_CurrentTextureLodLoaded</a>= textLod;
00776                 <font class="comment">// load it async.</font>
00777                 CAsyncFileManager3D::getInstance().loadTexture(textLod-&gt;Texture, &amp;textLod-&gt;Loaded);
00778         }
00779         <font class="keywordflow">else</font>
00780         {
00781                 <font class="comment">// Swap now the lod.</font>
00782                 <a class="code" href="debug_8h.html#a6">nlassert</a>(textLod-&gt;Texture!=NULL);
00783                 <font class="comment">// Swap the uploaded Driver Handle with the Main texture (ot get the Ugly one)</font>
00784                 pDriver-&gt;swapTextureHandle(*textLod-&gt;Texture, *textLod-&gt;TextureEntry-&gt;Texture);
00785                 <font class="comment">// Flag the Lod.</font>
00786                 textLod-&gt;UpLoaded= <font class="keyword">false</font>;
00787                 textLod-&gt;Loaded= <font class="keyword">false</font>;
00788                 <font class="comment">// Release completly the texture in driver. (SmartPtr delete)</font>
00789                 textLod-&gt;Texture= NULL;
00790         }
00791 
00792 }
00793 
00794 
00795 
00796 } <font class="comment">// NL3D</font>
</pre></div>

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