98 lines
6.4 KiB
HTML
98 lines
6.4 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<html>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Mu - apps/raytracing/color.mu</title>
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<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
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* { font-size:12pt; font-size: 1em; }
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.Delimiter { color: #c000c0; }
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.muFunction { color: #af5f00; text-decoration: underline; }
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.Constant { color: #008787; }
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<a href='https://github.com/akkartik/mu/blob/master/apps/raytracing/color.mu'>https://github.com/akkartik/mu/blob/master/apps/raytracing/color.mu</a>
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<pre id='vimCodeElement'>
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<span id="L1" class="LineNr"> 1 </span><span class="PreProc">type</span> rgb <span class="Delimiter">{</span>
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<span id="L2" class="LineNr"> 2 </span> <span class="muComment"># components normalized to within [0.0, 1.0]</span>
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<span id="L3" class="LineNr"> 3 </span> r: float
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<span id="L4" class="LineNr"> 4 </span> g: float
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<span id="L5" class="LineNr"> 5 </span> b: float
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<span id="L6" class="LineNr"> 6 </span><span class="Delimiter">}</span>
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<span id="L7" class="LineNr"> 7 </span>
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<span id="L8" class="LineNr"> 8 </span><span class="muComment"># print translating to [0, 256)</span>
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<span id="L9" class="LineNr"> 9 </span><span class="PreProc">fn</span> <span class="muFunction">print-rgb</span> <a href='../../405screen.mu.html#L9'>screen</a>: (addr <a href='../../405screen.mu.html#L9'>screen</a>), _c: (addr rgb) <span class="Delimiter">{</span>
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<span id="L10" class="LineNr">10 </span> <span class="PreProc">var</span> c/<span class="Constant">esi</span>: (addr rgb) <span class="SpecialChar"><-</span> copy _c
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<span id="L11" class="LineNr">11 </span> <span class="PreProc">var</span> xn: float
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<span id="L12" class="LineNr">12 </span> <span class="PreProc">var</span> xn-addr/<span class="Constant">ecx</span>: (addr float) <span class="SpecialChar"><-</span> address xn
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<span id="L13" class="LineNr">13 </span> <a href='../../408float.mu.html#L3'>fill-in-rational</a> xn-addr, <span class="Constant">0x3e7ff</span>, <span class="Constant">0x3e8</span> <span class="muComment"># 255999 / 1000</span>
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<span id="L14" class="LineNr">14 </span> <span class="muComment"># print 255.999 * c->r</span>
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<span id="L15" class="LineNr">15 </span> <span class="PreProc">var</span> result/<span class="Constant">xmm0</span>: float <span class="SpecialChar"><-</span> copy xn
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<span id="L16" class="LineNr">16 </span> <span class="PreProc">var</span> src-addr/<span class="Constant">eax</span>: (addr float) <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> c, r
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<span id="L17" class="LineNr">17 </span> result <span class="SpecialChar"><-</span> multiply *src-addr
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<span id="L18" class="LineNr">18 </span> <span class="PreProc">var</span> result-int/<span class="Constant">edx</span>: int <span class="SpecialChar"><-</span> truncate result
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<span id="L19" class="LineNr">19 </span> <a href='../../405screen.mu.html#L480'>print-int32-decimal</a> <a href='../../405screen.mu.html#L9'>screen</a>, result-int
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<span id="L20" class="LineNr">20 </span> <a href='../../405screen.mu.html#L169'>print-string</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">" "</span>
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<span id="L21" class="LineNr">21 </span> <span class="muComment"># print 255.999 * c->g</span>
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<span id="L22" class="LineNr">22 </span> src-addr <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> c, g
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<span id="L23" class="LineNr">23 </span> result <span class="SpecialChar"><-</span> copy xn
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<span id="L24" class="LineNr">24 </span> result <span class="SpecialChar"><-</span> multiply *src-addr
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<span id="L25" class="LineNr">25 </span> result-int <span class="SpecialChar"><-</span> truncate result
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<span id="L26" class="LineNr">26 </span> <a href='../../405screen.mu.html#L480'>print-int32-decimal</a> <a href='../../405screen.mu.html#L9'>screen</a>, result-int
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<span id="L27" class="LineNr">27 </span> <a href='../../405screen.mu.html#L169'>print-string</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">" "</span>
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<span id="L28" class="LineNr">28 </span> <span class="muComment"># print 255.999 * c->b</span>
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<span id="L29" class="LineNr">29 </span> src-addr <span class="SpecialChar"><-</span> <a href='../../131table.subx.html#L26'>get</a> c, b
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<span id="L30" class="LineNr">30 </span> result <span class="SpecialChar"><-</span> copy xn
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<span id="L31" class="LineNr">31 </span> result <span class="SpecialChar"><-</span> multiply *src-addr
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<span id="L32" class="LineNr">32 </span> result-int <span class="SpecialChar"><-</span> truncate result
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<span id="L33" class="LineNr">33 </span> <a href='../../405screen.mu.html#L480'>print-int32-decimal</a> <a href='../../405screen.mu.html#L9'>screen</a>, result-int
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<span id="L34" class="LineNr">34 </span> <a href='../../405screen.mu.html#L169'>print-string</a> <a href='../../405screen.mu.html#L9'>screen</a>, <span class="Constant">"\n"</span>
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<span id="L35" class="LineNr">35 </span><span class="Delimiter">}</span>
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</pre>
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</body>
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</html>
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