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fix up loose ends

tags/embedded-1-20030120
Brian Paul 23 years ago
parent
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ec5b054b8f
1 changed files with 18 additions and 14 deletions
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      docs/subset.html

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docs/subset.html View File

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

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