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fix up loose ends
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1 changed files with 18 additions and 14 deletions
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@ -11,25 +11,29 @@
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</h1>
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<h2>
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<center>
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<h3>(preliminary - Jan 16, 2003)</h3>
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<h3>Tungsten Graphics, Inc.</h3>
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<h3>January 20, 2003<br>
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</h3>
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</center>
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</h2>
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<p><span style="font-style: italic;">[This is an incomplete,
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preliminary document. All information is subject to change. Please
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see Appendix A for a list of open issues.]<br>
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</span><br>
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<p> Copyright © 2002-2003 by Tungsten Graphics, Inc., Cedar Park,
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Texas. All Rights Reserved. <br>
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<br>
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Permission is granted to make and distribute verbatim copies of this
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document provided the copyright notice and this permission notice are
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preserved on all copies.<br>
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</p>
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<p> This document describes a subset of the OpenGL API implemented by
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<h1>1. Introduction</h1>
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This document describes a subset of the OpenGL API implemented by
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Tungsten Graphics, Inc. for embedded devices. Prior to reading
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this document the reader should be familiar with the OpenGL 1.2.1
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specification dated April 1, 1999 (available from <a
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href="http://www.opengl.org/developers/documentation/specs.html">http://www.opengl.org/developers/documentation/specs.html</a>.)
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Experience with OpenGL programming is highly advisable.<a
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href="http://www.opengl.org/developers/documentation/specs.html"><br>
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</a><br>
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Appendix A contains a list of issues of which some may not be resolved.<br>
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<br>
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</a></p>
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<h1>1. Introduction</h1>
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To summarize, the following major features of OpenGL are omitted from
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the subset:<br>
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<ul>
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@ -1001,12 +1005,12 @@ parameter must be GL_UNSIGNED_BYTE. Pixel component values are
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thus in the range 0 through 255.<br>
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<br>
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If <span style="font-style: italic;">format</span> is GL_INTESITY then
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the image has one byte per pixel which specifies the pixel's red,
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green, blue and alpha values.<span style="font-style: italic;"></span><br>
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the image has one byte per pixel which specifies the pixel's red, green,
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blue and alpha values.<span style="font-style: italic;"></span><br>
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<br>
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If <span style="font-style: italic;">format</span> is GL_RGB then the
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image has three bytes per pixel which specify the pixel's red, green
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and blue values (in that order). The alpha value defaults to 255.<br>
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image has three bytes per pixel which specify the pixel's red, green and
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blue values (in that order). The alpha value defaults to 255.<br>
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<br>
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If <span style="font-style: italic;">format</span> is GL_RGBA then the
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image has four bytes per pixel which specify the pixel's red, green,
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@ -1155,8 +1159,8 @@ The texture magnification filter is set with the <span
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style="font-weight: bold;">glTexParameteri </span><span
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style="font-style: italic;"></span><span style="font-weight: bold;"></span>command
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by setting <span style="font-style: italic;">target</span> to
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GL_TEXTURE_2D, setting <span style="font-style: italic;">pname</span>
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to GL_TEXTURE_MAG_FILTER and setting <span style="font-style: italic;">value</span>
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GL_TEXTURE_2D, setting <span style="font-style: italic;">pname</span> to
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GL_TEXTURE_MAG_FILTER and setting <span style="font-style: italic;">value</span>
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to GL_NEAREST or GL_LINEAR.<br>
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<br>
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GL_NEAREST samples the texel nearest the texture coordinate in the
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