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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>YR++: Blitters/Blitter/BlitTransLucent25AlphaZReadWrite.h Source File</title>
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<div class="navpath"><a class="el" href="dir_f65534ef8218155ebbbcdb4eded228d2.html">Blitters</a> » <a class="el" href="dir_10eefb4ece531a6f61eb0c4b25712be1.html">Blitter</a>
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<h1>BlitTransLucent25AlphaZReadWrite.h</h1><a href="_blit_trans_lucent25_alpha_z_read_write_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef BLITTRANSLUCENT25ALPHAZREADWRITE_H</span>
<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define BLITTRANSLUCENT25ALPHAZREADWRITE_H</span>
<a name="l00003"></a>00003 <span class="preprocessor"></span>
<a name="l00004"></a>00004 <span class="preprocessor">#include <<a class="code" href="_blitters_8h.html">Blitters.h</a>></span>
<a name="l00005"></a>00005
<a name="l00006"></a>00006 <span class="keyword">template</span> <<span class="keyword">typename</span> T>
<a name="l00007"></a><a class="code" href="class_blit_trans_lucent25_alpha_z_read_write.html">00007</a> <span class="keyword">class </span><a class="code" href="class_blit_trans_lucent25_alpha_z_read_write.html">BlitTransLucent25AlphaZReadWrite</a> : <span class="keyword">public</span> <a class="code" href="class_blitter.html">Blitter</a><T> {
<a name="l00008"></a>00008 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_blit_trans_lucent25_alpha_z_read_write.html#bae379334cb0d01daa748fd9121a5a04">Blit</a>
<a name="l00009"></a><a class="code" href="class_blit_trans_lucent25_alpha_z_read_write.html#bae379334cb0d01daa748fd9121a5a04">00009</a> (<span class="keywordtype">void</span> *dest, byte *src, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <a class="code" href="_y_r_p_p_core_8h.html#197942eefa7db30960ae396d68339b97">WORD</a> zMin, <a class="code" href="_y_r_p_p_core_8h.html#197942eefa7db30960ae396d68339b97">WORD</a> *zBuf, <a class="code" href="_y_r_p_p_core_8h.html#197942eefa7db30960ae396d68339b97">WORD</a> *aBuf, <a class="code" href="_y_r_p_p_core_8h.html#197942eefa7db30960ae396d68339b97">WORD</a> aLvl, <span class="keywordtype">int</span> warpOffset)
<a name="l00010"></a>00010 {
<a name="l00011"></a>00011 T *dst = reinterpret_cast < T * >(dest);
<a name="l00012"></a>00012 <span class="keywordtype">int</span> alphaLevel = min((261 * max(aLvl, 0)) >> 11, 254);
<a name="l00013"></a>00013 word *extra = this->ExtraData[alphaLevel << 9];
<a name="l00014"></a>00014 <span class="keywordflow">for</span> (; length > 0; --length, ++dst) {
<a name="l00015"></a>00015 <span class="keywordflow">if</span> (*zBuf > zMin) {
<a name="l00016"></a>00016 byte srcv = *src++;
<a name="l00017"></a>00017 <span class="keywordflow">if</span> (srcv) {
<a name="l00018"></a>00018 word tmpval = (this-><a class="code" href="class_blit_trans_lucent25_alpha_z_read_write.html#a0e0ddc1827997980b6f7880a4533c1e">Data</a>[srcv | extra[*aBuf]] >> 2) & this->AlphaData;
<a name="l00019"></a>00019 word dstval = (*dst >> 2) & this->AlphaData;
<a name="l00020"></a>00020 tmpval += 3 * dstval;
<a name="l00021"></a>00021 *dst = tmpval;
<a name="l00022"></a>00022 *zBuf = zMin;
<a name="l00023"></a>00023 }
<a name="l00024"></a>00024 }
<a name="l00025"></a>00025 ++dst;
<a name="l00026"></a>00026 <span class="keywordflow">if</span> (Drawing::ZBuffer->BufferEnd <= zBuf) {
<a name="l00027"></a>00027 zBuf -= Drawing::ZBuffer->BufferSize;
<a name="l00028"></a>00028 }
<a name="l00029"></a>00029 ++zBuf;
<a name="l00030"></a>00030 <span class="keywordflow">if</span> (Drawing::ABuffer->BufferEnd <= aBuf) {
<a name="l00031"></a>00031 aBuf -= Drawing::ABuffer->BufferSize;
<a name="l00032"></a>00032 }
<a name="l00033"></a>00033 ++aBuf;
<a name="l00034"></a>00034 }
<a name="l00035"></a>00035 }
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_blit_trans_lucent25_alpha_z_read_write.html#36680d336dd094b1b55e300202fb9c69">CallBlit0</a>
<a name="l00038"></a><a class="code" href="class_blit_trans_lucent25_alpha_z_read_write.html#36680d336dd094b1b55e300202fb9c69">00038</a> (<span class="keywordtype">void</span> *dest, byte *src, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <a class="code" href="_y_r_p_p_core_8h.html#197942eefa7db30960ae396d68339b97">WORD</a> zMin, <a class="code" href="_y_r_p_p_core_8h.html#197942eefa7db30960ae396d68339b97">WORD</a> *zBuf, <a class="code" href="_y_r_p_p_core_8h.html#197942eefa7db30960ae396d68339b97">WORD</a> *aBuf, <a class="code" href="_y_r_p_p_core_8h.html#197942eefa7db30960ae396d68339b97">WORD</a> aLvl, <a class="code" href="_y_r_p_p_core_8h.html#197942eefa7db30960ae396d68339b97">WORD</a> unknownArg, <a class="code" href="_y_r_p_p_core_8h.html#d342ac907eb044443153a22f964bf0af">DWORD</a> useless)
<a name="l00039"></a>00039 {
<a name="l00040"></a>00040 this-><a class="code" href="class_blit_trans_lucent25_alpha_z_read_write.html#bae379334cb0d01daa748fd9121a5a04">Blit</a>(dest, src, length, zMin, zBuf, aBuf, aLvl, 0);
<a name="l00041"></a>00041 }
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_blit_trans_lucent25_alpha_z_read_write.html#0ba88ed12aff0f1fe7310935c47cfeb0">CallBlit1</a>
<a name="l00044"></a><a class="code" href="class_blit_trans_lucent25_alpha_z_read_write.html#0ba88ed12aff0f1fe7310935c47cfeb0">00044</a> (<span class="keywordtype">void</span> *dest, byte *src, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <a class="code" href="_y_r_p_p_core_8h.html#197942eefa7db30960ae396d68339b97">WORD</a> zMin, <a class="code" href="_y_r_p_p_core_8h.html#197942eefa7db30960ae396d68339b97">WORD</a> *zBuf, <a class="code" href="_y_r_p_p_core_8h.html#197942eefa7db30960ae396d68339b97">WORD</a> *aBuf, <a class="code" href="_y_r_p_p_core_8h.html#197942eefa7db30960ae396d68339b97">WORD</a> aLvl)
<a name="l00045"></a>00045 {
<a name="l00046"></a>00046 this-><a class="code" href="class_blit_trans_lucent25_alpha_z_read_write.html#bae379334cb0d01daa748fd9121a5a04">Blit</a>(dest, src, length, zMin, zBuf, aBuf, aLvl, 0);
<a name="l00047"></a>00047 }
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_blit_trans_lucent25_alpha_z_read_write.html#45d36cd01c34397ffd400affbea0ed17">CallBlit2</a>
<a name="l00050"></a><a class="code" href="class_blit_trans_lucent25_alpha_z_read_write.html#45d36cd01c34397ffd400affbea0ed17">00050</a> (<span class="keywordtype">void</span> *dest, byte *src, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> length, <a class="code" href="_y_r_p_p_core_8h.html#197942eefa7db30960ae396d68339b97">WORD</a> zMin, <a class="code" href="_y_r_p_p_core_8h.html#197942eefa7db30960ae396d68339b97">WORD</a> *zBuf, <a class="code" href="_y_r_p_p_core_8h.html#197942eefa7db30960ae396d68339b97">WORD</a> *aBuf, <a class="code" href="_y_r_p_p_core_8h.html#197942eefa7db30960ae396d68339b97">WORD</a> aLvl, <a class="code" href="_y_r_p_p_core_8h.html#d342ac907eb044443153a22f964bf0af">DWORD</a> useless)
<a name="l00051"></a>00051 {
<a name="l00052"></a>00052 this-><a class="code" href="class_blit_trans_lucent25_alpha_z_read_write.html#bae379334cb0d01daa748fd9121a5a04">Blit</a>(dest, src, length, zMin, zBuf, aBuf, aLvl, 0);
<a name="l00053"></a>00053 }
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <span class="keyword">public</span>:
<a name="l00056"></a><a class="code" href="class_blit_trans_lucent25_alpha_z_read_write.html#a0e0ddc1827997980b6f7880a4533c1e">00056</a> T *<a class="code" href="class_blit_trans_lucent25_alpha_z_read_write.html#a0e0ddc1827997980b6f7880a4533c1e">Data</a>;
<a name="l00057"></a>00057 };
<a name="l00058"></a>00058
<a name="l00059"></a>00059 <span class="preprocessor">#endif</span>
</pre></div></div>
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