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CELLPADDING=0 BORDER=0 width=100%><tr><td width=1% valign=middle><img width=6 height=14 hspace=2 vspace=2 src="/inc/img/reddots.gif"></TD> <TD><B>Documentation</B></TD> <TD ALIGN=RIGHT> </td> </tr></table> <!-- Generated by Doxygen 1.2.14 --> <center> <a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="namespaces.html">Namespace List</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="classes.html">Alphabetical List</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="namespacemembers.html">Namespace Members</a> <a class="qindex" href="functions.html">Compound Members</a> <a class="qindex" href="globals.html">File Members</a> <a class="qindex" href="pages.html">Related Pages</a> <a class="qindexRef" doxygen="_cgi:/cgi-bin/nel-search.cgi" href="/cgi-bin/nel-search.cgi">Search</a> </center> <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>=<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<(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>()>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*)&(*<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>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> <!-- footer --> <BR><FONT Size=+5> </FONT> </TD> <TD WIDTH=15><IMG SRC=/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD> </TR> </TABLE> </BODY> </HTML>