<!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<HTML>
<HEAD>
	<TITLE>nevrax.org : docs</TITLE>
	<LINK REL=stylesheet TYPE="text/css" HREF="/inc/css/nevrax.css">
	<link href="doxygen.css" rel="stylesheet" type="text/css">
</HEAD>
<BODY MARGINHEIGHT="0" MARGINWIDTH="0">

<!-- uplinks -->
<TABLE CELLSPACING=0 CELLPADDING=0  BORDER=0>
 <TR>
        <TD WIDTH=16><IMG  SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="16" BORDER=0 ALT=""></TD>
        <TD WIDTH=140 BGCOLOR=#dddddd><IMG  SRC="/inc/img/pixel.gif" WIDTH="140" HEIGHT="16" BORDER=0 ALT=""></TD>
        <TD WIDTH=16><IMG  SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="16" BORDER=0 ALT=""></TD>
        <TD><IMG width=6 height=14 SRC="/inc/img/reddots.gif" ALT="#" VSPACE=2 HSPACE=2 BORDER=0 ></TD><TD VALIGN=middle>&nbsp;<A CLASS=uplinks HREF='/'><b>Home</B></FONT></A>&nbsp;&nbsp;&nbsp;</TD>
        <TD><IMG  width=6 height=14  SRC="/inc/img/reddots.gif" ALT="#" VSPACE=2 HSPACE=2 BORDER=0 ></TD><TD VALIGN=middle>&nbsp;<A CLASS=uplinks HREF='/'><b>nevrax.com</B></FONT></A>&nbsp;&nbsp;&nbsp;</TD>
 </TR>
</TABLE> 

<!-- banner Nevrax -->
<TABLE CELLSPACING=0 CELLPADDING=0  BORDER=0 WIDTH=100%>
 <TR><TD  BGCOLOR="#000000" BACKGROUND="/inc/img/black_banner.jpg"><A HREF=""><IMG  SRC="/inc/img/nevrax.gif" WIDTH="170" HEIGHT="45" BORDER=0 ALT="Nevrax" ></A></TD></TR>
</TABLE>

<!-- main table -->
<TABLE CELLSPACING=0 CELLPADDING=0  BORDER=0 height=100%>
 <TR>
	<TD WIDTH=16><IMG  SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="10" BORDER=0 ALT=""></TD>
	<TD WIDTH=140   BGCOLOR=#dddddd VALIGN=TOP ALIGN=middle><IMG  SRC="/inc/img/pixel.gif" WIDTH="140" HEIGHT="10" BORDER=0 ALT="">

		<!------ Begin Box ------>
		<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 BGCOLOR=black><TR><TD><TABLE border=0  cellspacing=2 cellpadding=0 width=120><tr><TD ALIGN=middle bgcolor=black>
		<FONT COLOR=white FACE="sans-serif"><B>Nevrax.org</B></FONT></TD></TR><tr><td  colspan=2 bgcolor=#FFFFFF>
		<TABLE cellspacing=0 cellpadding=1 border=0>
			<tr><td ALIGN=middle><a  class='linkbox' href="/news/" TITLE="Rubrique news"><img width=13 height=15  hspace=5 border=0 src=/inc/img/picto-news.gif ALT=#></A></td><td><a  class='linkbox' href="/news/" TITLE="News">News</a></td></tr>
			<tr><td ALIGN=middle><a  class='linkbox' href="/mail/" TITLE="Rubrique mail"><img width=15 height=11  hspace=5 border=0 src=/inc/img/picto-mail.gif ALT=#></A></td><td><a  class='linkbox' href="/mail/" TITLE="Mailing list archive">Mailing-list</a></td></tr>
			<tr><td ALIGN=middle><a  class='linkbox' href="/docs/" TITLE="Rubrique docs"><img width=14 height=16  hspace=5 border=0 src=/inc/img/picto-docs.gif ALT=#></A></td><td><a  class='linkbox' href="/docs/" TITLE="Documentation">Documentation</a></td></tr>
			<tr><td ALIGN=middle><a  class='linkbox' href="/cvs/" TITLE="Rubrique cvs"><img width=13 height=17  hspace=5 border=0 src=/inc/img/picto-cvs.gif ALT=#></A></td><td><a  class='linkbox' href="/cvs/" TITLE="CVS Web">CVS</a></td></tr>
			<tr><td ALIGN=middle><a  class='linkbox' href="/bugs/" TITLE="Rubrique bugs"><img width=20 height=16  hspace=5 border=0 src=/inc/img/picto-bugs.gif ALT=#></A></td><td><a  class='linkbox' href="/bugs/" TITLE="Bugtracking">Bugs</a></td></tr>
			<tr><td ALIGN=middle><a  class='linkbox' href="/GPL.php3" TITLE="Rubrique license"><img  width=18 height=12   hspace=5 border=0 src=/inc/img/picto-gpl.gif ALT=#></A></td><td><a  class='linkbox' href="/GPL.php3" TITLE="License">License</a></td></tr>
		</TABLE>
		</TD></TR></TABLE></TD></TR></TABLE>
		<!------ End Box  ------>

	</TD>
	<TD WIDTH=15><IMG  SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="16" BORDER=0 ALT=""></TD>
	<TD ALIGN=left valign=top><IMG  SRC="/inc/img/pixel.gif" WIDTH="140" HEIGHT="10" BORDER=0 ALT="">

<!-- title -->
<TABLE  background="/inc/img/redline.gif" CELLSPACING=0 CELLPADDING=0  BORDER=0 width=100%><tr><td>
<A HREF="/docs/"><img src="/inc/img/t_docs.gif" ALT="Docs" HEIGHT=20 BORDER=0></A>
</td><td><IMG  SRC="/inc/img/pixel.gif" WIDTH="1" HEIGHT="1" BORDER=0 ALT="">
</td></tr></table>
&nbsp;

<!-- block -->
<TABLE  bgcolor="#dddddd" CELLSPACING=0 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>&nbsp;</td>
</tr></table>
<!-- Generated by Doxygen 1.2.14 -->
<center>
<a class="qindex" href="index.html">Main Page</a> &nbsp; <a class="qindex" href="namespaces.html">Namespace List</a> &nbsp; <a class="qindex" href="hierarchy.html">Class Hierarchy</a> &nbsp; <a class="qindex" href="classes.html">Alphabetical List</a> &nbsp; <a class="qindex" href="annotated.html">Compound List</a> &nbsp; <a class="qindex" href="files.html">File List</a> &nbsp; <a class="qindex" href="namespacemembers.html">Namespace Members</a> &nbsp; <a class="qindex" href="functions.html">Compound Members</a> &nbsp; <a class="qindex" href="globals.html">File Members</a> &nbsp; <a class="qindex" href="pages.html">Related Pages</a> &nbsp; <a class="qindexRef" doxygen="_cgi:/cgi-bin/nel-search.cgi" href="/cgi-bin/nel-search.cgi">Search</a> &nbsp; </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&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>

<!-- footer -->
<BR><FONT Size=+5>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; </FONT>
</TD>
<TD WIDTH=15><IMG  SRC=/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD>
</TR>
</TABLE>
</BODY>
</HTML>