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<hr><h1>texture_near.cpp</h1><a href="texture__near_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 
00007 <font class="comment">/* Copyright, 2000 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025 
00026 <font class="preprocessor">#include "<a class="code" href="std3d_8h.html">std3d.h</a>"</font>
00027 
00028 
00029 <font class="preprocessor">#include "<a class="code" href="texture__near_8h.html">3d/texture_near.h</a>"</font>
00030 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
00031 
00032 <font class="keyword">namespace </font>NL3D 
00033 {
00034 
00035 
00036 <font class="comment">// ***************************************************************************</font>
<a name="l00037"></a><a class="code" href="classNL3D_1_1CTextureNear.html#a0">00037</a> CTextureNear::CTextureNear(sint size)
00038 {
00039         <a class="code" href="debug_8h.html#a6">nlassert</a>(size&gt;=<a class="code" href="texture__near_8h.html#a0">NL_TILE_LIGHTMAP_SIZE</a>);
00040         <a class="code" href="debug_8h.html#a6">nlassert</a>(NLMISC::isPowerOf2(size));
00041 
00042         <font class="comment">// The near texture always reside in memory...</font>
00043         <font class="comment">// NB: this is simplier like that, and this is not a problem, since only 1 or 2 Mo are allocated :o)</font>
00044         <a class="code" href="classNL3D_1_1ITexture.html#a3">setReleasable</a>(<font class="keyword">false</font>);
00045         <font class="comment">// create the bitmap.</font>
00046         CBitmap::resize(size, size, CBitmap::RGBA);
00047         <font class="comment">// Format of texture, 32 bits and no mipmaps.</font>
00048         <a class="code" href="classNL3D_1_1ITexture.html#z826_4">setUploadFormat</a>(ITexture::RGBA8888);
00049         <a class="code" href="classNL3D_1_1ITexture.html#z826_6">setFilterMode</a>(ITexture::Linear, ITexture::LinearMipMapOff);
00050 
00051         <font class="comment">// Fill the array of free tiles.</font>
00052         uint    nbTilesByLine= size/<a class="code" href="texture__near_8h.html#a0">NL_TILE_LIGHTMAP_SIZE</a>;
00053         <a class="code" href="classNL3D_1_1CTextureNear.html#o0">_FreeTiles</a>.resize(nbTilesByLine*nbTilesByLine);
00054         <a class="code" href="classNL3D_1_1CTextureNear.html#o1">_AvailableTiles</a>.resize(nbTilesByLine*nbTilesByLine);
00055         <font class="keywordflow">for</font>(sint i=0;i&lt;(sint)<a class="code" href="classNL3D_1_1CTextureNear.html#o0">_FreeTiles</a>.size();i++)
00056         {
00057                 <font class="comment">// This tile is free!!</font>
00058                 <a class="code" href="classNL3D_1_1CTextureNear.html#o0">_FreeTiles</a>[i]=i;
00059                 <a class="code" href="classNL3D_1_1CTextureNear.html#o1">_AvailableTiles</a>[i]= <font class="keyword">true</font>;
00060         }
00061 
00062 }
00063 
00064 <font class="comment">// ***************************************************************************</font>
<a name="l00065"></a><a class="code" href="classNL3D_1_1CTextureNear.html#z830_0">00065</a> sint                    CTextureNear::getNbAvailableTiles()
00066 {
00067         <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CTextureNear.html#o0">_FreeTiles</a>.size();
00068 }
00069 <font class="comment">// ***************************************************************************</font>
<a name="l00070"></a><a class="code" href="classNL3D_1_1CTextureNear.html#z830_1">00070</a> uint                    CTextureNear::getTileAndFillRect(CRGBA  map[<a class="code" href="texture__near_8h.html#a0">NL_TILE_LIGHTMAP_SIZE</a>*<a class="code" href="texture__near_8h.html#a0">NL_TILE_LIGHTMAP_SIZE</a>])
00071 {
00072         <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CTextureNear.html#z830_0">getNbAvailableTiles</a>()&gt;0);
00073         uint    <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>= <a class="code" href="classNL3D_1_1CTextureNear.html#o0">_FreeTiles</a>.back();
00074         <font class="comment">// This tile is now more free.</font>
00075         <a class="code" href="classNL3D_1_1CTextureNear.html#o1">_AvailableTiles</a>[<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>]= <font class="keyword">false</font>;
00076         <a class="code" href="classNL3D_1_1CTextureNear.html#o0">_FreeTiles</a>.pop_back();
00077 
00078         <font class="comment">// Fill the texture</font>
00079         <a class="code" href="classNL3D_1_1CTextureNear.html#z830_2">refillRect</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>, map);
00080 
00081         <font class="keywordflow">return</font> <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>;
00082 }
00083 
00084 <font class="comment">// ***************************************************************************</font>
<a name="l00085"></a><a class="code" href="classNL3D_1_1CTextureNear.html#z830_2">00085</a> <font class="keywordtype">void</font>                    CTextureNear::refillRect(uint <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>, CRGBA  map[<a class="code" href="texture__near_8h.html#a0">NL_TILE_LIGHTMAP_SIZE</a>*<a class="code" href="texture__near_8h.html#a0">NL_TILE_LIGHTMAP_SIZE</a>])
00086 {
00087         uint    dstWidth= <a class="code" href="classNLMISC_1_1CBitmap.html#a6">getWidth</a>();
00088         <font class="comment">// Copy the map into the texture</font>
00089         uint    nbTilesByLine= dstWidth/<a class="code" href="texture__near_8h.html#a0">NL_TILE_LIGHTMAP_SIZE</a>;
00090         uint    <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>= <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>% nbTilesByLine;
00091         uint    <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>= <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>/ nbTilesByLine;
00092         <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>*= <a class="code" href="texture__near_8h.html#a0">NL_TILE_LIGHTMAP_SIZE</a>;
00093         <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>*= <a class="code" href="texture__near_8h.html#a0">NL_TILE_LIGHTMAP_SIZE</a>;
00094         CRGBA   *<a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>= map;
00095         CRGBA   *dst= (CRGBA*)&amp;(*<a class="code" href="classNLMISC_1_1CBitmap.html#z277_0">getPixels</a>().begin());
00096         dst+= <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>*dstWidth+<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>;
00097         <font class="keywordflow">for</font>(sint n= <a class="code" href="texture__near_8h.html#a0">NL_TILE_LIGHTMAP_SIZE</a>;n&gt;0;n--, <a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>+= <a class="code" href="texture__near_8h.html#a0">NL_TILE_LIGHTMAP_SIZE</a>, dst+= dstWidth)
00098         {
00099                 memcpy(dst, <a class="code" href="driver__opengl__extension__def_8h.html#a409">src</a>, <a class="code" href="texture__near_8h.html#a0">NL_TILE_LIGHTMAP_SIZE</a>*<font class="keyword">sizeof</font>(CRGBA));
00100         }
00101 
00102         <font class="comment">// Invalidate the rectangle.</font>
00103         ITexture::touchRect(CRect(<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a384">t</a>, <a class="code" href="texture__near_8h.html#a0">NL_TILE_LIGHTMAP_SIZE</a>, <a class="code" href="texture__near_8h.html#a0">NL_TILE_LIGHTMAP_SIZE</a>));
00104 }
00105 
00106 <font class="comment">// ***************************************************************************</font>
<a name="l00107"></a><a class="code" href="classNL3D_1_1CTextureNear.html#z830_3">00107</a> <font class="keywordtype">void</font>                    CTextureNear::releaseTile(uint <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>)
00108 {
00109         <a class="code" href="debug_8h.html#a6">nlassert</a>(!<a class="code" href="classNL3D_1_1CTextureNear.html#o1">_AvailableTiles</a>[<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>]);
00110         <font class="comment">// This tile is now free.</font>
00111         <a class="code" href="classNL3D_1_1CTextureNear.html#o1">_AvailableTiles</a>[<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>]= <font class="keyword">true</font>;
00112         <font class="comment">// insert this tile at the end of the free list.</font>
00113         <a class="code" href="classNL3D_1_1CTextureNear.html#o0">_FreeTiles</a>.push_back(<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>);
00114 }
00115 
00116 
00117 } <font class="comment">// NL3D</font>
</pre></div>

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