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James Gregory 2013-12-30 15:11:04 +11:00
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<meta name="vspubdate" content="07/01/97" />
<meta name="vscategory" content="Web and Software Development: Game Development,Web and Software Development: Graphics and Multimedia Development" />
<title>Michael Abrash's Graphics Programming Black Book Special Edition: Be It Resolved: 360x480</title><!-- HEADER -->
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<!--ISBN=1576101746//-->
<!--TITLE=Michael Abrash's Graphics Programming Black Book Special Edition//-->
<!--AUTHOR=Michael Abrash//-->
<!--PUBLISHER=The Coriolis Group, Inc.//-->
<title>Michael Abrash's Graphics Programming Black Book Special Edition: Be It Resolved: 360x480</title>
<meta name="chapter" content="32" />
<meta name="pages" content="620-622" />
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<p>Once all that&rsquo;s done, the VGA is in 360x480 mode, awaiting our every high-resolution 256-color graphics whim.</p>
<h4 align="left"><a id="Heading8"></a>Accessing Display Memory in 360x480 256-Color Mode</h4>
<h4 align="left" id="Heading8">Accessing Display Memory in 360x480 256-Color Mode</h4>
<p>Setting up for 360x480 256-color mode proved to be quite a task. Is drawing in this mode going to be as difficult?</p>
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<p>That&rsquo;s really all there is to drawing in 360x480 256-color mode. From a programming perspective, this mode is no more complicated than 320x400 256-color mode once the mode set is completed, and should be capable of good performance given some clever coding. It&rsquo;s not particular straightforward to implement bitblt, block move, or fast line-drawing code for any of the extended 256-color modes, but it can be done&mdash;and it&rsquo;s worth the trouble. Even the small taste we&rsquo;ve gotten of the capabilities of these modes shows that they put the traditional CGA, EGA, and generally even VGA modes to shame.</p>
<p><a id="Fig1"><!-- </A><A HREF="javascript:displayWindow('images/32-01.jpg',406,181 )"> --><img src="images/32-01.jpg" /><br />
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<BR><A HREF="javascript:displayWindow('images/32-01.jpg',406,181)"> --><b>Figure 32.1</b></a>&nbsp;&nbsp;<i>Pixel organization in 360x480 256-color mode.</i></p>
<p><a id="Fig1"><img src="images/32-01.jpg" /><br />
<b>Figure 32.1</b></a>&nbsp;&nbsp;<i>Pixel organization in 360x480 256-color mode.</i></p>
<p>There&rsquo;s more and better to come, though; in later chapters, we&rsquo;ll return to high-resolution 256-color programming in a big way, by exploring the tremendous potential of these modes for real time 2-D and 3-D animation.</p>
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<div align="center">
Graphics Programming Black Book &copy; 2001 Michael Abrash
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