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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>=<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>
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