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<title>NeL: NL3D::CTileLumel class Reference</title>
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<h1>NL3D::CTileLumel Class Reference</h1><code>#include <<a class="el" href="a06547.html">tile_lumel.h</a>></code>
<p>
<hr><a name="_details"></a><h2>Detailed Description</h2>
This class describe an uncompressed lumel for tiles.<p>
<dl compact><dt><b>Author:</b></dt><dd>Cyril Corvazier <p>
Nevrax France </dd></dl>
<dl compact><dt><b>Date:</b></dt><dd>2000 </dd></dl>
<p>
<p>
Definition at line <a class="el" href="a06547.html#l00047">47</a> of file <a class="el" href="a06547.html">tile_lumel.h</a>.<table border=0 cellpadding=0 cellspacing=0>
<tr><td></td></tr>
<tr><td colspan=2><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="a03528.html#NL3D_1_1CTileLumela0">createCompressed</a> (<a class="el" href="a04558.html#a7">uint8</a> interpolated, <a class="el" href="a04558.html#a7">uint8</a> _4bits)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="a03528.html#NL3D_1_1CTileLumela1">createUncompressed</a> (<a class="el" href="a04558.html#a7">uint8</a> interpolated, <a class="el" href="a04558.html#a7">uint8</a> shaded)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>bool </td><td class="memItemRight" valign=bottom><a class="el" href="a03528.html#NL3D_1_1CTileLumela2">isShadowed</a> () const </td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="a03528.html#NL3D_1_1CTileLumela3">pack</a> (<a class="el" href="a03529.html">CStreamBit</a> &stream) const </td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="a03528.html#NL3D_1_1CTileLumela4">unpack</a> (<a class="el" href="a03529.html">CStreamBit</a> &stream, <a class="el" href="a04558.html#a7">uint8</a> interpolated)</td></tr>
<tr><td colspan=2><br><h2>Static Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="a03528.html#NL3D_1_1CTileLumele0">skip</a> (<a class="el" href="a03529.html">CStreamBit</a> &stream)</td></tr>
<tr><td colspan=2><br><h2>Data Fields</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top><a class="el" href="a04558.html#a7">uint8</a> </td><td class="memItemRight" valign=bottom><a class="el" href="a03528.html#NL3D_1_1CTileLumelo0">Shaded</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">The shading value [0-255]. Always valid. <a href="#NL3D_1_1CTileLumelo0"></a><br><br></td></tr>
<tr><td colspan=2><br><h2>Private Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top><a class="el" href="a04558.html#a7">uint8</a> </td><td class="memItemRight" valign=bottom><a class="el" href="a03528.html#NL3D_1_1CTileLumelr0">_ShadowValue</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">The shadow 4 bits value [0-15]. 0xff means no shadows. <a href="#NL3D_1_1CTileLumelr0"></a><br><br></td></tr>
</table>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="NL3D_1_1CTileLumela0" doxytag="NL3D::CTileLumel::createCompressed" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> void NL3D::CTileLumel::createCompressed </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="a04558.html#a7">uint8</a> </td>
<td class="mdname" nowrap> <em>interpolated</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap><a class="el" href="a04558.html#a7">uint8</a> </td>
<td class="mdname" nowrap> <em>_4bits</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"><code> [inline]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Create a tileLumel with precompressed data.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign=top><em>interpolated</em> </td><td>is the bilinear interpolated value at this lumel. </td></tr>
<tr><td valign=top><em>_4bits</em> </td><td>is the 4 bits compressed shadow.</td></tr>
</table>
</dl>
<p>
Definition at line <a class="el" href="a06547.html#l00204">204</a> of file <a class="el" href="a06547.html">tile_lumel.h</a>.
<p>
References <a class="el" href="a06547.html#l00127">_ShadowValue</a>, <a class="el" href="a06547.html#l00124">Shaded</a>, <a class="el" href="a05981.html#l00105">uint</a>, and <a class="el" href="a05981.html#l00096">uint8</a>.
<p>
Referenced by <a class="el" href="a06547.html#l00218">unpack()</a>.
<p>
<div class="fragment"><pre>00205 {
00206 <span class="comment">// Shadow value</span>
00207 <a class="code" href="a03528.html#NL3D_1_1CTileLumelr0">_ShadowValue</a>=_4bits;
00208
00209 <span class="comment">// Shading</span>
00210 <a class="code" href="a04558.html#a15">uint</a> temp=(((<a class="code" href="a04558.html#a15">uint</a>)interpolated*((<a class="code" href="a04558.html#a15">uint</a>)<a class="code" href="a03528.html#NL3D_1_1CTileLumelr0">_ShadowValue</a>))>>3)+4;
00211 <span class="keywordflow">if</span> (temp>255)
00212 temp=255;
00213
00214 <a class="code" href="a03528.html#NL3D_1_1CTileLumelo0">Shaded</a>=(<a class="code" href="a04558.html#a7">uint8</a>)temp;
00215 }
</pre></div> </td>
</tr>
</table>
<a class="anchor" name="NL3D_1_1CTileLumela1" doxytag="NL3D::CTileLumel::createUncompressed" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> void NL3D::CTileLumel::createUncompressed </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="a04558.html#a7">uint8</a> </td>
<td class="mdname" nowrap> <em>interpolated</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap><a class="el" href="a04558.html#a7">uint8</a> </td>
<td class="mdname" nowrap> <em>shaded</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Create a tileLumel from uncompressed data.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign=top><em>interpolated</em> </td><td>is the bilinear interpolated value at this lumel. </td></tr>
<tr><td valign=top><em>shaded</em> </td><td>is the reel shading value at this lumel.</td></tr>
</table>
</dl>
<p>
Definition at line <a class="el" href="a06546.html#l00037">37</a> of file <a class="el" href="a06546.html">tile_lumel.cpp</a>.
<p>
References <a class="el" href="a06547.html#l00127">_ShadowValue</a>, <a class="el" href="a05587.html#l00115">NLMISC::clamp()</a>, <a class="el" href="a06547.html#l00124">Shaded</a>, <a class="el" href="a05981.html#l00104">sint</a>, <a class="el" href="a05981.html#l00105">uint</a>, and <a class="el" href="a05981.html#l00096">uint8</a>.
<p>
<div class="fragment"><pre>00038 {
00039 <span class="comment">// Shading </span>
00040 <a class="code" href="a03528.html#NL3D_1_1CTileLumelo0">Shaded</a>=shaded;
00041
00042 <span class="comment">// Same color ?</span>
00043 <span class="keywordflow">if</span> (interpolated!=shaded)
00044 {
00045 <span class="comment">// Compute compressed value</span>
00046 <a class="code" href="a04558.html#a14">sint</a> temp=((shaded<<3)/(<a class="code" href="a04558.html#a14">sint</a>)(interpolated?interpolated:1));
00047 <a class="code" href="a05378.html#a374">clamp</a> (temp, 0, 15);
00048
00049 <span class="comment">// After decompression</span>
00050 <a class="code" href="a04558.html#a15">uint</a> decompressed=(((<a class="code" href="a04558.html#a15">uint</a>)interpolated*((<a class="code" href="a04558.html#a15">uint</a>)temp))>>3)+4;
00051 <span class="keywordflow">if</span> (decompressed>255)
00052 decompressed=255;
00053
00054 <span class="comment">// Need to compress ?</span>
00055 <span class="keywordflow">if</span> (abs((<a class="code" href="a04558.html#a14">sint</a>)shaded-(<a class="code" href="a04558.html#a14">sint</a>)decompressed)>=abs((<a class="code" href="a04558.html#a14">sint</a>)shaded-(<a class="code" href="a04558.html#a14">sint</a>)interpolated))
00056 {
00057 <span class="comment">// Shadow not present</span>
00058 <a class="code" href="a03528.html#NL3D_1_1CTileLumelr0">_ShadowValue</a>=0xff;
00059 }
00060 <span class="keywordflow">else</span>
00061 {
00062 <span class="comment">// Shadow</span>
00063 <a class="code" href="a03528.html#NL3D_1_1CTileLumelr0">_ShadowValue</a>=temp;
00064 }
00065 }
00066 <span class="keywordflow">else</span>
00067 {
00068 <span class="comment">// Shadow not present</span>
00069 <a class="code" href="a03528.html#NL3D_1_1CTileLumelr0">_ShadowValue</a>=0xff;
00070 }
00071 }
</pre></div> </td>
</tr>
</table>
<a class="anchor" name="NL3D_1_1CTileLumela2" doxytag="NL3D::CTileLumel::isShadowed" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> bool NL3D::CTileLumel::isShadowed </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const<code> [inline]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Is shadow are present? return true if this lumel is shadowed, else false.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign=top><em>stream</em> </td><td>is the bit stream used to pack the lumel.</td></tr>
</table>
</dl>
<p>
Definition at line <a class="el" href="a06547.html#l00117">117</a> of file <a class="el" href="a06547.html">tile_lumel.h</a>.
<p>
References <a class="el" href="a06547.html#l00127">_ShadowValue</a>.
<p>
Referenced by <a class="el" href="a06546.html#l00074">pack()</a>.
<p>
<div class="fragment"><pre>00118 {
00119 <span class="keywordflow">return</span> (<a class="code" href="a03528.html#NL3D_1_1CTileLumelr0">_ShadowValue</a>!=0xff);
00120 }
</pre></div> </td>
</tr>
</table>
<a class="anchor" name="NL3D_1_1CTileLumela3" doxytag="NL3D::CTileLumel::pack" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> void NL3D::CTileLumel::pack </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="a03529.html">CStreamBit</a> & </td>
<td class="mdname1" valign="top" nowrap> <em>stream</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const</td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Pack the lumel from a bit stream.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign=top><em>stream</em> </td><td>is the bit stream used to pack the lumel.</td></tr>
</table>
</dl>
<p>
Definition at line <a class="el" href="a06546.html#l00074">74</a> of file <a class="el" href="a06546.html">tile_lumel.cpp</a>.
<p>
References <a class="el" href="a06547.html#l00127">_ShadowValue</a>, <a class="el" href="a06547.html#l00117">isShadowed()</a>, <a class="el" href="a06547.html#l00152">NL3D::CTileLumel::CStreamBit::pushBack4bits()</a>, and <a class="el" href="a06547.html#l00139">NL3D::CTileLumel::CStreamBit::pushBackBool()</a>.
<p>
<div class="fragment"><pre>00075 {
00076 <span class="comment">// There is shadow here ?</span>
00077 <span class="keywordflow">if</span> (<a class="code" href="a03528.html#NL3D_1_1CTileLumela2">isShadowed</a> ())
00078 {
00079 <span class="comment">// Put a true</span>
00080 stream.pushBackBool(<span class="keyword">true</span>);
00081
00082 <span class="comment">// Read the shadow value</span>
00083 stream.pushBack4bits(_ShadowValue);
00084 }
00085 <span class="keywordflow">else</span>
00086 <span class="comment">// Put a false</span>
00087 stream.pushBackBool(<span class="keyword">false</span>);
00088 }
</pre></div> </td>
</tr>
</table>
<a class="anchor" name="NL3D_1_1CTileLumele0" doxytag="NL3D::CTileLumel::skip" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> void NL3D::CTileLumel::skip </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="a03529.html">CStreamBit</a> & </td>
<td class="mdname1" valign="top" nowrap> <em>stream</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [inline, static]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Skip the lumel from a bit stream.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign=top><em>stream</em> </td><td>is the bit stream used to skip the lumel.</td></tr>
</table>
</dl>
<p>
Definition at line <a class="el" href="a06547.html#l00240">240</a> of file <a class="el" href="a06547.html">tile_lumel.h</a>.
<p>
References <a class="el" href="a06547.html#l00186">NL3D::CTileLumel::CStreamBit::popBack4bits()</a>, and <a class="el" href="a06547.html#l00174">NL3D::CTileLumel::CStreamBit::popBackBool()</a>.
<p>
<div class="fragment"><pre>00241 {
00242 <span class="comment">// There is shadow here ?</span>
00243 <span class="keywordflow">if</span> (stream.popBackBool())
00244 {
00245 <span class="comment">// Read the shadow value</span>
00246 stream.popBack4bits();
00247 }
00248 }
</pre></div> </td>
</tr>
</table>
<a class="anchor" name="NL3D_1_1CTileLumela4" doxytag="NL3D::CTileLumel::unpack" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> void NL3D::CTileLumel::unpack </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="a03529.html">CStreamBit</a> & </td>
<td class="mdname" nowrap> <em>stream</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap><a class="el" href="a04558.html#a7">uint8</a> </td>
<td class="mdname" nowrap> <em>interpolated</em></td>
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<td class="md">) </td>
<td class="md" colspan="2"><code> [inline]</code></td>
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<p>
Unpack the lumel from a bit stream.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign=top><em>interpolated</em> </td><td>is the bilinear interpolated value at this lumel. </td></tr>
<tr><td valign=top><em>stream</em> </td><td>is the bit stream used to unpack the lumel.</td></tr>
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</dl>
<p>
Definition at line <a class="el" href="a06547.html#l00218">218</a> of file <a class="el" href="a06547.html">tile_lumel.h</a>.
<p>
References <a class="el" href="a06547.html#l00127">_ShadowValue</a>, <a class="el" href="a06547.html#l00204">createCompressed()</a>, <a class="el" href="a06547.html#l00186">NL3D::CTileLumel::CStreamBit::popBack4bits()</a>, <a class="el" href="a06547.html#l00174">NL3D::CTileLumel::CStreamBit::popBackBool()</a>, <a class="el" href="a06547.html#l00124">Shaded</a>, <a class="el" href="a05981.html#l00096">uint8</a>, and <a class="el" href="a05646.html#l01132">value</a>.
<p>
<div class="fragment"><pre>00219 {
00220 <span class="comment">// There is shadow here ?</span>
00221 <span class="keywordflow">if</span> (stream.popBackBool())
00222 {
00223 <span class="comment">// Read the shadow value</span>
00224 <a class="code" href="a04558.html#a7">uint8</a> <a class="code" href="a04223.html#a658">value</a>=stream.popBack4bits();
00225
00226 <span class="comment">// Unpack it</span>
00227 <a class="code" href="a03528.html#NL3D_1_1CTileLumela0">createCompressed</a> (interpolated, value);
00228 }
00229 <span class="keywordflow">else</span>
00230 {
00231 <span class="comment">// Put a default shading</span>
00232 <a class="code" href="a03528.html#NL3D_1_1CTileLumelo0">Shaded</a>=interpolated;
00233
00234 <span class="comment">// Shadow not present</span>
00235 <a class="code" href="a03528.html#NL3D_1_1CTileLumelr0">_ShadowValue</a>=0xff;
00236 }
00237 }
</pre></div> </td>
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<hr><h2>Field Documentation</h2>
<a class="anchor" name="NL3D_1_1CTileLumelr0" doxytag="NL3D::CTileLumel::_ShadowValue" ></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="a04558.html#a7">uint8</a> <a class="el" href="a03528.html#NL3D_1_1CTileLumelr0">NL3D::CTileLumel::_ShadowValue</a><code> [private]</code>
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<p>
The shadow 4 bits value [0-15]. 0xff means no shadows.
<p>
<p>
Definition at line <a class="el" href="a06547.html#l00127">127</a> of file <a class="el" href="a06547.html">tile_lumel.h</a>.
<p>
Referenced by <a class="el" href="a06547.html#l00204">createCompressed()</a>, <a class="el" href="a06546.html#l00037">createUncompressed()</a>, <a class="el" href="a06547.html#l00117">isShadowed()</a>, <a class="el" href="a06546.html#l00074">pack()</a>, and <a class="el" href="a06547.html#l00218">unpack()</a>. </td>
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<a class="anchor" name="NL3D_1_1CTileLumelo0" doxytag="NL3D::CTileLumel::Shaded" ></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="a04558.html#a7">uint8</a> <a class="el" href="a03528.html#NL3D_1_1CTileLumelo0">NL3D::CTileLumel::Shaded</a>
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</td>
<td>
<p>
The shading value [0-255]. Always valid.
<p>
<p>
Definition at line <a class="el" href="a06547.html#l00124">124</a> of file <a class="el" href="a06547.html">tile_lumel.h</a>.
<p>
Referenced by <a class="el" href="a06547.html#l00204">createCompressed()</a>, <a class="el" href="a06546.html#l00037">createUncompressed()</a>, and <a class="el" href="a06547.html#l00218">unpack()</a>. </td>
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</table>
<hr>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="a06547.html">tile_lumel.h</a><li><a class="el" href="a06546.html">tile_lumel.cpp</a></ul>
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