aboutsummaryrefslogtreecommitdiff
path: root/docs/doxygen/nel/vegetable__sort__block_8cpp-source.html
blob: 5b542285532f75421ec0d18af27e5a543c666e76 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
<!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>vegetable_sort_block.cpp</h1><a href="vegetable__sort__block_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 
00007 <font class="comment">/* Copyright, 2001 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="vegetable__sort__block_8h.html">3d/vegetable_sort_block.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="radix__sort_8h.html">3d/radix_sort.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="fast__floor_8h.html">3d/fast_floor.h</a>"</font>
00031 
00032 
00033 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
00034 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
00035 
00036 <font class="keyword">namespace </font>NL3D 
00037 {
00038 
00039 
00040 <font class="comment">// sort triangles with 2 mm of precision. It leaves 64 m with an uint16, which is really sufficient :)</font>
<a name="l00041"></a><a class="code" href="vegetable__sort__block_8cpp.html#a0">00041</a> <font class="preprocessor">#define NL3D_VEGETABLE_TRI_RADIX_KEY_PRECISION  512</font>
00042 <font class="preprocessor"></font>
00043 
00044 <font class="comment">// ***************************************************************************</font>
<a name="l00045"></a><a class="code" href="classNL3D_1_1CVegetableSortBlock.html#a0">00045</a> CVegetableSortBlock::CVegetableSortBlock()
00046 {
00047         <a class="code" href="classNL3D_1_1CVegetableSortBlock.html#o4">ZSortHardMode</a>= <font class="keyword">true</font>;
00048         <a class="code" href="classNL3D_1_1CVegetableSortBlock.html#z820_6">_NTriangles</a>= 0;
00049         <a class="code" href="classNL3D_1_1CVegetableSortBlock.html#z820_7">_NIndices</a>= 0;
00050         <a class="code" href="classNL3D_1_1CVegetableSortBlock.html#o1">_Dirty</a>= <font class="keyword">false</font>;
00051         <a class="code" href="classNL3D_1_1CVegetableSortBlock.html#o2">_UnderWater</a>= <font class="keyword">false</font>;
00052 }
00053 
00054 
00055 <font class="comment">// ***************************************************************************</font>
00056 <font class="comment">// the struct to sort a triangle.</font>
<a name="l00057"></a><a class="code" href="structNL3D_1_1CSortTri.html">00057</a> <font class="keyword">struct  </font>CSortTri
00058 {
00059         <font class="comment">// index of the triangle.</font>
<a name="l00060"></a><a class="code" href="structNL3D_1_1CSortTri.html#m0">00060</a>         <a class="code" href="types__nl_8h.html#a7">uint16</a>  <a class="code" href="structNL3D_1_1CSortTri.html#m0">TriIndex</a>;
00061 
00062         <font class="comment">// QSort only.</font>
00063         <font class="comment">// distance.</font>
<a name="l00064"></a><a class="code" href="structNL3D_1_1CSortTri.html#m1">00064</a>         <font class="keywordtype">float</font>   <a class="code" href="structNL3D_1_1CSortTri.html#m1">Dist</a>;
<a name="l00065"></a><a class="code" href="structNL3D_1_1CSortTri.html#a0">00065</a>         <font class="keywordtype">bool</font>    <a class="code" href="structNL3D_1_1CSortTri.html#a0">operator&lt;</a>(<font class="keyword">const</font> CSortTri &amp;o)<font class="keyword"> const</font>
00066 <font class="keyword">        </font>{
00067                 <font class="keywordflow">return</font> <a class="code" href="structNL3D_1_1CSortTri.html#m1">Dist</a>&gt;o.Dist;
00068         }
00069 };
00070 
00071 
00072 <font class="comment">// ***************************************************************************</font>
<a name="l00073"></a><a class="code" href="classNL3D_1_1CVegetableSortBlock.html#a2">00073</a> <font class="keywordtype">void</font>                    CVegetableSortBlock::updateSortBlock(CVegetableManager &amp;vegetManager)
00074 {
00075         <font class="comment">// if nothing to update (ie instance added/deleted do not impact me).</font>
00076         <font class="keywordflow">if</font>(!<a class="code" href="classNL3D_1_1CVegetableSortBlock.html#o1">_Dirty</a>)
00077         {
00078                 <font class="comment">// nothing to do.</font>
00079                 <font class="keywordflow">return</font>;
00080         }
00081         <font class="keywordflow">else</font>
00082         {
00083                 <font class="comment">// Ok clean me now.</font>
00084                 <a class="code" href="classNL3D_1_1CVegetableSortBlock.html#o1">_Dirty</a>= <font class="keyword">false</font>;
00085         }
00086 
00087 
00088         <font class="comment">// compute number of triangles.</font>
00089         <a class="code" href="classNL3D_1_1CVegetableSortBlock.html#z820_6">_NTriangles</a>= 0;
00090         CVegetableInstanceGroup         *ptrIg= <a class="code" href="classNL3D_1_1CVegetableSortBlock.html#o3">_InstanceGroupList</a>.begin();
00091         <font class="keywordflow">while</font>(ptrIg)
00092         {
00093                 <font class="comment">// add only zsort rdrPass triangles.</font>
00094                 <a class="code" href="classNL3D_1_1CVegetableSortBlock.html#z820_6">_NTriangles</a>+= ptrIg-&gt;_RdrPass[<a class="code" href="vegetable__def_8h.html#a5">NL3D_VEGETABLE_RDRPASS_UNLIT_2SIDED_ZSORT</a>].NTriangles;
00095 
00096                 <font class="comment">// next Ig in the SortBlock</font>
00097                 ptrIg= (CVegetableInstanceGroup*)(ptrIg-&gt;Next);
00098         }
00099         <font class="comment">// compute number of indices</font>
00100         <a class="code" href="classNL3D_1_1CVegetableSortBlock.html#z820_7">_NIndices</a>= <a class="code" href="classNL3D_1_1CVegetableSortBlock.html#z820_6">_NTriangles</a>*3;
00101 
00102 
00103         <font class="comment">// if no triangles, clear and go</font>
00104         <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CVegetableSortBlock.html#z820_6">_NTriangles</a> == 0)
00105         {
00106                 <font class="comment">// reset the array of indices.</font>
00107                 <a class="code" href="classNL3D_1_1CVegetableSortBlock.html#z820_4">_SortedTriangleArray</a>.<a class="code" href="classNLMISC_1_1CObjectVector.html#z290_0">clear</a>();
00108                 <font class="comment">// bye</font>
00109                 <font class="keywordflow">return</font>;
00110         }
00111         <font class="keywordflow">else</font>
00112         {
00113                 <font class="comment">// else, re-allocate the array</font>
00114                 <a class="code" href="classNL3D_1_1CVegetableSortBlock.html#z820_4">_SortedTriangleArray</a>.<a class="code" href="classNLMISC_1_1CObjectVector.html#z290_1">resize</a>(<a class="code" href="classNL3D_1_1CVegetableSortBlock.html#z820_7">_NIndices</a> * <a class="code" href="vegetable__def_8h.html#a10">NL3D_VEGETABLE_NUM_QUADRANT</a>);
00115         }
00116 
00117 
00118         <font class="comment">// resize an array for sorting.</font>
00119         <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CVegetableSortBlock.html#z820_6">_NTriangles</a> &lt; 65536);
00120         <font class="keyword">static</font>  std::vector&lt;CSortTri&gt;   triSort;
00121         <font class="keyword">static</font>  std::vector&lt;uint32&gt;             triIndices;
00122         triSort.clear();
00123         triSort.resize(<a class="code" href="classNL3D_1_1CVegetableSortBlock.html#z820_6">_NTriangles</a>);
00124         triIndices.resize(<a class="code" href="classNL3D_1_1CVegetableSortBlock.html#z820_7">_NIndices</a>);
00125 
00126 
00127         <font class="comment">// for all quadrants</font>
00128         <font class="keywordflow">for</font>(<a class="code" href="types__nl_8h.html#a13">uint</a> quadrant=0; quadrant&lt;<a class="code" href="vegetable__def_8h.html#a10">NL3D_VEGETABLE_NUM_QUADRANT</a>; quadrant++)
00129         {
00130                 <font class="comment">// fill triSort with all ig info.</font>
00131                 <font class="comment">//-------------</font>
00132                 CSortTri        *triPtr= &amp;triSort[0];
00133                 <a class="code" href="types__nl_8h.html#a9">uint32</a>          *triIdxPtr= &amp;triIndices[0];
00134                 <a class="code" href="types__nl_8h.html#a13">uint</a>            triId= 0;
00135                 <font class="comment">// for all igs in the sortBlock.</font>
00136                 ptrIg= <a class="code" href="classNL3D_1_1CVegetableSortBlock.html#o3">_InstanceGroupList</a>.begin();
00137                 <font class="keywordflow">while</font>(ptrIg)
00138                 {
00139                         CVegetableInstanceGroup::CVegetableRdrPass      &amp;vegetRdrPass= ptrIg-&gt;_RdrPass[<a class="code" href="vegetable__def_8h.html#a5">NL3D_VEGETABLE_RDRPASS_UNLIT_2SIDED_ZSORT</a>];
00140 
00141                         <font class="comment">// add only zsort rdrPass triangles.</font>
00142                         <font class="keywordflow">for</font>(<a class="code" href="types__nl_8h.html#a13">uint</a> i=0; i&lt;vegetRdrPass.NTriangles; i++, triPtr++, triId++)
00143                         {
00144                                 <font class="comment">// QSort.</font>
00145                                 triPtr-&gt;Dist = ptrIg-&gt;_TriangleQuadrantOrders[quadrant][i];
00146 
00147                                 <font class="comment">// copy tri info</font>
00148                                 triPtr-&gt;TriIndex= triId;
00149                                         
00150                                 <font class="comment">// fill the triangle indices.</font>
00151                                 *(triIdxPtr++)= vegetRdrPass.TriangleIndices[i*3 + 0];
00152                                 *(triIdxPtr++)= vegetRdrPass.TriangleIndices[i*3 + 1];
00153                                 *(triIdxPtr++)= vegetRdrPass.TriangleIndices[i*3 + 2];
00154                         }
00155 
00156                         <font class="comment">// next Ig in the SortBlock</font>
00157                         ptrIg= (CVegetableInstanceGroup*)(ptrIg-&gt;Next);
00158                 }
00159 
00160                 <font class="comment">// sort the array according to distance</font>
00161                 <font class="comment">//-------------</font>
00162                 <font class="comment">// QSort.</font>
00163                 sort(triSort.begin(), triSort.end());
00164 
00165 
00166                 <font class="comment">// Fill result.</font>
00167                 <font class="comment">//-------------</font>
00168                 <font class="comment">// init quadrant ptr.</font>
00169                 <a class="code" href="classNL3D_1_1CVegetableSortBlock.html#z820_5">_SortedTriangleIndices</a>[quadrant]= <a class="code" href="classNL3D_1_1CVegetableSortBlock.html#z820_4">_SortedTriangleArray</a>.<a class="code" href="classNLMISC_1_1CObjectVector.html#z291_2">getPtr</a>() + quadrant * <a class="code" href="classNL3D_1_1CVegetableSortBlock.html#z820_7">_NIndices</a>;
00170 
00171                 <font class="comment">// fill the indices.</font>
00172                 <a class="code" href="types__nl_8h.html#a9">uint32</a>  *pIdx= <a class="code" href="classNL3D_1_1CVegetableSortBlock.html#z820_5">_SortedTriangleIndices</a>[quadrant];
00173                 <font class="keywordflow">for</font>(<a class="code" href="types__nl_8h.html#a13">uint</a> i=0; i&lt;<a class="code" href="classNL3D_1_1CVegetableSortBlock.html#z820_6">_NTriangles</a>; i++)
00174                 {
00175                         <a class="code" href="types__nl_8h.html#a9">uint32</a>  idTriIdx= triSort[i].TriIndex * 3;
00176                         *(pIdx++)= triIndices[idTriIdx+0];
00177                         *(pIdx++)= triIndices[idTriIdx+1];
00178                         *(pIdx++)= triIndices[idTriIdx+2];
00179                 }
00180         }
00181 }
00182 
00183 
00184 
00185 
00186 } <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>