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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>->getSize()>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<<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() && <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o9">_TextureEntryMap</a>.empty() && <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o11">_CurrentUploadTexture</a>==NULL
00100 && <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>=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>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>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 &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>=<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->Texture= <font class="keyword">new</font> CTextureFile;
00184 <font class="comment">// Do not allow degradation.</font>
00185 text->Texture->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->ItMap= it;
00191
00192 <font class="comment">// Start Color or Async loading.</font>
00193 text->Texture->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->Loaded= <font class="keyword">true</font>;
00201 text->BuildFromHLSManager= <font class="keyword">true</font>;
00202 text->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->Texture->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->Texture, &text->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->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->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->UpLoaded)
00225 instance->_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->Loaded)
00241 {
00242 CAsyncFileManager3D::getInstance().cancelLoadTexture(text->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->ItMap);
00247
00248 <font class="comment">// remove in list of waiting textures</font>
00249 vector<uint>::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->UpLoaded)
00261 {
00262 <font class="comment">// For all its remainding instances, dec refcount</font>
00263 <font class="keywordflow">for</font>(uint i=0;i<text->Instances.size();i++)
00264 {
00265 text->Instances[i]->_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->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= &text->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->Loaded)
00281 {
00282 CAsyncFileManager3D::getInstance().cancelLoadTexture(textLod->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><<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->Instances.size();
00310 <font class="keywordflow">for</font>(uint i=0;i<instSize;i++)
00311 {
00312 <font class="keywordflow">if</font>(text->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->UpLoaded)
00316 text->Instances[i]->_AsyncTextureToLoadRefCount--;
00317 <font class="comment">// remove it by swapping with last texture</font>
00318 text->Instances[i]= text->Instances[instSize-1];
00319 text->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 => release it.</font>
00326 <font class="keywordflow">if</font>(text->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><<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>]->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>>=<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->UpLoaded)
00353 <font class="keywordflow">return</font> NULL;
00354
00355 <font class="comment">// ok return the CoarseBitmap</font>
00356 <font class="keywordflow">return</font> &textEntry->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>-><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>-><a class="code" href="classNL3D_1_1CAsyncTextureManager_1_1CTextureBase.html#a0">isTextureEntry</a>())
00378 {
00379 uint i;
00380 CTextureEntry *textEntry= static_cast<CTextureEntry*>(_CurrentUploadTexture);
00381 <font class="comment">// If we are here, the texture is finally entirely uploaded. Compile it!</font>
00382 textEntry->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->CanHaveLOD= <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#f0">validDXTCMipMap</a>(pText) && <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o0">_BaseLodLevel</a>><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->getSize(0)*CBitmap::bitPerPixels[pText->getPixelFormat()]/8;
00387 <font class="comment">// full size with mipmap</font>
00388 textEntry->BaseSize= (uint)(baseMipMapSize*1.33f);
00389 <font class="comment">// UpLoaded !! => signal all instances.</font>
00390 <font class="keywordflow">for</font>(i=0;i<textEntry->Instances.size();i++)
00391 {
00392 textEntry->Instances[i]->_AsyncTextureToLoadRefCount--;
00393 }
00394
00395 <font class="comment">// Create the coarse bitmap with the text (NB: still in memory here)</font>
00396 textEntry->createCoarseBitmap();
00397
00398 <font class="comment">// If CanHaveLOD, create now the lods entries.</font>
00399 <font class="keywordflow">if</font>(textEntry->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 &textLod= textEntry->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->BaseSize*(1<<(2*(<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o0">_BaseLodLevel</a>-<a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o1">_MaxLodLevel</a>))) - textEntry->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->TotalTextureSizeAsked= textEntry->BaseSize + textEntry->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->TotalTextureSizeAsked;
00423 }
00424 <font class="comment">// else, stuff for textureLod.</font>
00425 <font class="keywordflow">else</font>
00426 {
00427 CTextureLod *textLod= static_cast<CTextureLod*>(_CurrentUploadTexture);
00428 <font class="comment">// Swap the uploaded Driver Handle with the Main texture.</font>
00429 pDriver->swapTextureHandle(*textLod->Texture, *textLod->TextureEntry->Texture);
00430 <font class="comment">// Flag the Lod.</font>
00431 textLod->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->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 &nTotalUploaded)
00452 {
00453 uint nMipMap;
00454 nMipMap = pText->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 && <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"> => if the texture is used, it will be loaded synchronously by the caller later in the process</font>
00466 <font class="comment"> => 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 => Maybe Big Freeze.</font>
00471 <font class="comment"> // approximate*2 instead of *1.33 for mipmaps.</font>
00472 <font class="comment"> uint nWeight = pText->getSize (0) * 2;</font>
00473 <font class="comment"> nWeight= (nWeight*CBitmap::bitPerPixels[pText->getPixelFormat()])/8;</font>
00474 <font class="comment"> nTotalUploaded+= nWeight;</font>
00475 <font class="comment"> pDriver->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->getReleasable ();
00483 pText->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->setupTextureEx (*pText, <font class="keyword">false</font>, isAllUploaded, <font class="keyword">true</font>);
00491 pText->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><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->getSize (nMM) - <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o13">_CurrentUploadTextureLine</a>*pText->getWidth(nMM);
00507 nWeight= (nWeight*CBitmap::bitPerPixels[pText->getPixelFormat()])/8;
00508
00509 <font class="keywordflow">if</font> ((nTotalUploaded + nWeight) > <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o2">_MaxUploadPerFrame</a>)
00510 {
00511 <font class="comment">// We cannot upload the whole mipmap -> 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->getWidth(nMM)*CBitmap::bitPerPixels[pText->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->getHeight(nMM));
00522 zeRect.set (0, <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o13">_CurrentUploadTextureLine</a>, pText->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->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->getWidth(nMM), pText->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->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 > <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 &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<uint>::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->Loaded)
00566 {
00567 <font class="comment">// Is it a "texture to color" with HLSManager? yes=> color it now.</font>
00568 <font class="keywordflow">if</font>(text->BuildFromHLSManager)
00569 {
00570 <font class="comment">// If not beyond the max coloring texture</font>
00571 <font class="keywordflow">if</font>(nTotalColored<<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->HLSManagerTextId, *text->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->Texture->validateGenerateFlag();
00578 <font class="comment">// compute the texture size (approx). NB: DXTC5 means 1 pixel==1 byte.</font>
00579 uint size= (uint)(text->Texture->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 => 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> && <a class="code" href="classNL3D_1_1CAsyncTextureManager.html#o14">_CurrentTextureLodLoaded</a>-><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->getMipMapCount()>1 && (
00621 pText->getPixelFormat() == CBitmap::DXTC1 ||
00622 pText->getPixelFormat() == CBitmap::DXTC1Alpha ||
00623 pText->getPixelFormat() == CBitmap::DXTC3 ||
00624 pText->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<CTextureLod*> 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<(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 &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<text.Instances.size();j++)
00652 {
00653 <font class="keywordtype">float</font> instDist= text.Instances[j]->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<(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 &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= &text.HDLod;
00683 textLod->Weight= (1<<textLod->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>=0;i--)
00703 {
00704 uint lodSize= lodArray[i]->ExtraSize;
00705 currentWantedSize+= lodSize;
00706 <font class="keywordflow">if</font>(lodArray[i]->UpLoaded)
00707 currentLoadedSize+= lodSize;
00708 <font class="comment">// if > 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 > <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>=0;i--)
00717 {
00718 <font class="keywordflow">if</font>(lodArray[i]->UpLoaded)
00719 currentLoadedSize+= lodArray[i]->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<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>=(sint)pivot;i--)
00733 {
00734 <font class="keywordflow">if</font>(!lodArray[i]->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<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<(sint)pivot;i++)
00748 {
00749 <font class="keywordflow">if</font>(lodArray[i]->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->Texture==NULL);
00768 textLod->Texture= <font class="keyword">new</font> CTextureFile;
00769 <font class="comment">// Do not allow degradation.</font>
00770 textLod->Texture->setAllowDegradation(<font class="keyword">false</font>);
00771 textLod->Texture->enableSharing(<font class="keyword">false</font>);
00772 textLod->Texture->setFileName(textLod->TextureEntry->Texture->getFileName());
00773 textLod->Texture->setMipMapSkipAtLoad(textLod->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->Texture, &textLod->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->Texture!=NULL);
00783 <font class="comment">// Swap the uploaded Driver Handle with the Main texture (ot get the Ugly one)</font>
00784 pDriver->swapTextureHandle(*textLod->Texture, *textLod->TextureEntry->Texture);
00785 <font class="comment">// Flag the Lod.</font>
00786 textLod->UpLoaded= <font class="keyword">false</font>;
00787 textLod->Loaded= <font class="keyword">false</font>;
00788 <font class="comment">// Release completly the texture in driver. (SmartPtr delete)</font>
00789 textLod->Texture= NULL;
00790 }
00791
00792 }
00793
00794
00795
00796 } <font class="comment">// NL3D</font>
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