Adding upstream version 2.10.22.upstream/2.10.22 upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-27 16:23:22 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-27 16:23:22 +0000
commit: e42129241681dde7adae7d20697e7b421682fbb4 (patch)
tree: af1fe815a5e639e68e59fabd8395ec69458b3e5e /devel-docs/libgimpmath/html/libgimpmath-GimpMath.html
parent: Initial commit. (diff)
download: gimp-e42129241681dde7adae7d20697e7b421682fbb4.tar.xz
gimp-e42129241681dde7adae7d20697e7b421682fbb4.zip
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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+<title>GimpMath: GIMP Math Library Reference Manual</title>
+<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot">
+<link rel="home" href="index.html" title="GIMP Math Library Reference Manual">
+<link rel="up" href="pt01.html" title="Part I. GIMP Math Library">
+<link rel="prev" href="pt01.html" title="Part I. GIMP Math Library">
+<link rel="next" href="libgimpmath-GimpMatrix.html" title="GimpMatrix">
+<meta name="generator" content="GTK-Doc V1.32 (XML mode)">
+<link rel="stylesheet" href="style.css" type="text/css">
+</head>
+<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
+<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle">
+<td width="100%" align="left" class="shortcuts">
+<a href="#" class="shortcut">Top</a><span id="nav_description">  <span class="dim">|</span> 
+                  <a href="#libgimpmath-GimpMath.description" class="shortcut">Description</a></span>
+</td>
+<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
+<td><a accesskey="u" href="pt01.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
+<td><a accesskey="p" href="pt01.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td>
+<td><a accesskey="n" href="libgimpmath-GimpMatrix.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td>
+</tr></table>
+<div class="refentry">
+<a name="libgimpmath-GimpMath"></a><div class="titlepage"></div>
+<div class="refnamediv"><table width="100%"><tr>
+<td valign="top">
+<h2><span class="refentrytitle"><a name="libgimpmath-GimpMath.top_of_page"></a>GimpMath</span></h2>
+<p>GimpMath — Mathematical definitions and macros.</p>
+</td>
+<td class="gallery_image" valign="top" align="right"></td>
+</tr></table></div>
+<div class="refsect1">
+<a name="libgimpmath-GimpMath.functions"></a><h2>Functions</h2>
+<div class="informaltable"><table class="informaltable" width="100%" border="0">
+<colgroup>
+<col width="150px" class="functions_proto_type">
+<col class="functions_proto_name">
+</colgroup>
+<tbody>
+<tr>
+<td class="define_keyword">#define</td>
+<td class="function_name">
+<a class="link" href="libgimpmath-GimpMath.html#RINT:CAPS" title="RINT()">RINT</a><span class="c_punctuation">()</span>
+</td>
+</tr>
+<tr>
+<td class="define_keyword">#define</td>
+<td class="function_name">
+<a class="link" href="libgimpmath-GimpMath.html#ROUND:CAPS" title="ROUND()">ROUND</a><span class="c_punctuation">()</span>
+</td>
+</tr>
+<tr>
+<td class="define_keyword">#define</td>
+<td class="function_name">
+<a class="link" href="libgimpmath-GimpMath.html#SIGNED-ROUND:CAPS" title="SIGNED_ROUND()">SIGNED_ROUND</a><span class="c_punctuation">()</span>
+</td>
+</tr>
+<tr>
+<td class="define_keyword">#define</td>
+<td class="function_name">
+<a class="link" href="libgimpmath-GimpMath.html#SQR:CAPS" title="SQR()">SQR</a><span class="c_punctuation">()</span>
+</td>
+</tr>
+<tr>
+<td class="define_keyword">#define</td>
+<td class="function_name">
+<a class="link" href="libgimpmath-GimpMath.html#MAX255:CAPS" title="MAX255()">MAX255</a><span class="c_punctuation">()</span>
+</td>
+</tr>
+<tr>
+<td class="define_keyword">#define</td>
+<td class="function_name">
+<a class="link" href="libgimpmath-GimpMath.html#CLAMP0255:CAPS" title="CLAMP0255()">CLAMP0255</a><span class="c_punctuation">()</span>
+</td>
+</tr>
+<tr>
+<td class="define_keyword">#define</td>
+<td class="function_name">
+<a class="link" href="libgimpmath-GimpMath.html#SAFE-CLAMP:CAPS" title="SAFE_CLAMP()">SAFE_CLAMP</a><span class="c_punctuation">()</span>
+</td>
+</tr>
+<tr>
+<td class="define_keyword">#define</td>
+<td class="function_name">
+<a class="link" href="libgimpmath-GimpMath.html#gimp-deg-to-rad" title="gimp_deg_to_rad()">gimp_deg_to_rad</a><span class="c_punctuation">()</span>
+</td>
+</tr>
+<tr>
+<td class="define_keyword">#define</td>
+<td class="function_name">
+<a class="link" href="libgimpmath-GimpMath.html#gimp-rad-to-deg" title="gimp_rad_to_deg()">gimp_rad_to_deg</a><span class="c_punctuation">()</span>
+</td>
+</tr>
+</tbody>
+</table></div>
+</div>
+<div class="refsect1">
+<a name="libgimpmath-GimpMath.description"></a><h2>Description</h2>
+<p>Mathematical definitions and macros for use both by the GIMP
+application and plug-ins. These macros should be used rather than
+the ones from &lt;math.h&gt; for enhanced portability.</p>
+</div>
+<div class="refsect1">
+<a name="libgimpmath-GimpMath.functions_details"></a><h2>Functions</h2>
+<div class="refsect2">
+<a name="RINT:CAPS"></a><h3>RINT()</h3>
+<pre class="programlisting">#define RINT(x) rint(x)
+</pre>
+<p>This macro rounds its argument <em class="parameter"><code>x</code></em>
+ to an integer value in floating
+point format. Use <a class="link" href="libgimpmath-GimpMath.html#RINT:CAPS" title="RINT()"><code class="function">RINT()</code></a> instead of <code class="function">rint()</code>.</p>
+<div class="refsect3">
+<a name="RINT.parameters"></a><h4>Parameters</h4>
+<div class="informaltable"><table class="informaltable" width="100%" border="0">
+<colgroup>
+<col width="150px" class="parameters_name">
+<col class="parameters_description">
+<col width="200px" class="parameters_annotations">
+</colgroup>
+<tbody><tr>
+<td class="parameter_name"><p>x</p></td>
+<td class="parameter_description"><p>the value to be rounded</p></td>
+<td class="parameter_annotations"> </td>
+</tr></tbody>
+</table></div>
+</div>
+</div>
+<hr>
+<div class="refsect2">
+<a name="ROUND:CAPS"></a><h3>ROUND()</h3>
+<pre class="programlisting">#define ROUND(x) ((int) ((x) + 0.5))
+</pre>
+<p>This macro rounds its positive argument <em class="parameter"><code>x</code></em>
+ to the nearest integer.</p>
+<div class="refsect3">
+<a name="ROUND.parameters"></a><h4>Parameters</h4>
+<div class="informaltable"><table class="informaltable" width="100%" border="0">
+<colgroup>
+<col width="150px" class="parameters_name">
+<col class="parameters_description">
+<col width="200px" class="parameters_annotations">
+</colgroup>
+<tbody><tr>
+<td class="parameter_name"><p>x</p></td>
+<td class="parameter_description"><p>the value to be rounded.</p></td>
+<td class="parameter_annotations"> </td>
+</tr></tbody>
+</table></div>
+</div>
+</div>
+<hr>
+<div class="refsect2">
+<a name="SIGNED-ROUND:CAPS"></a><h3>SIGNED_ROUND()</h3>
+<pre class="programlisting">#define SIGNED_ROUND(x) ((int) RINT (x))
+</pre>
+<p>This macro rounds its argument <em class="parameter"><code>x</code></em>
+ to the nearest integer.</p>
+<div class="refsect3">
+<a name="SIGNED-ROUND.parameters"></a><h4>Parameters</h4>
+<div class="informaltable"><table class="informaltable" width="100%" border="0">
+<colgroup>
+<col width="150px" class="parameters_name">
+<col class="parameters_description">
+<col width="200px" class="parameters_annotations">
+</colgroup>
+<tbody><tr>
+<td class="parameter_name"><p>x</p></td>
+<td class="parameter_description"><p>the value to be rounded.</p></td>
+<td class="parameter_annotations"> </td>
+</tr></tbody>
+</table></div>
+</div>
+</div>
+<hr>
+<div class="refsect2">
+<a name="SQR:CAPS"></a><h3>SQR()</h3>
+<pre class="programlisting">#define SQR(x) ((x) * (x))
+</pre>
+<p>This macro squares its argument <em class="parameter"><code>x</code></em>
+.</p>
+<div class="refsect3">
+<a name="SQR.parameters"></a><h4>Parameters</h4>
+<div class="informaltable"><table class="informaltable" width="100%" border="0">
+<colgroup>
+<col width="150px" class="parameters_name">
+<col class="parameters_description">
+<col width="200px" class="parameters_annotations">
+</colgroup>
+<tbody><tr>
+<td class="parameter_name"><p>x</p></td>
+<td class="parameter_description"><p>the value to be squared.</p></td>
+<td class="parameter_annotations"> </td>
+</tr></tbody>
+</table></div>
+</div>
+</div>
+<hr>
+<div class="refsect2">
+<a name="MAX255:CAPS"></a><h3>MAX255()</h3>
+<pre class="programlisting">#define MAX255(a)  ((a) | (((a) &amp; 256) - (((a) &amp; 256) &gt;&gt; 8)))
+</pre>
+<p>This macro limits it argument <em class="parameter"><code>a</code></em>
+, an (0-511) int, to 255.</p>
+<div class="refsect3">
+<a name="MAX255.parameters"></a><h4>Parameters</h4>
+<div class="informaltable"><table class="informaltable" width="100%" border="0">
+<colgroup>
+<col width="150px" class="parameters_name">
+<col class="parameters_description">
+<col width="200px" class="parameters_annotations">
+</colgroup>
+<tbody><tr>
+<td class="parameter_name"><p>a</p></td>
+<td class="parameter_description"><p>the value to be limited.</p></td>
+<td class="parameter_annotations"> </td>
+</tr></tbody>
+</table></div>
+</div>
+</div>
+<hr>
+<div class="refsect2">
+<a name="CLAMP0255:CAPS"></a><h3>CLAMP0255()</h3>
+<pre class="programlisting">#define CLAMP0255(a)  CLAMP(a,0,255)
+</pre>
+<p>This macro clamps its argument <em class="parameter"><code>a</code></em>
+, an int32-range int, between 0
+and 255 inclusive.</p>
+<div class="refsect3">
+<a name="CLAMP0255.parameters"></a><h4>Parameters</h4>
+<div class="informaltable"><table class="informaltable" width="100%" border="0">
+<colgroup>
+<col width="150px" class="parameters_name">
+<col class="parameters_description">
+<col width="200px" class="parameters_annotations">
+</colgroup>
+<tbody><tr>
+<td class="parameter_name"><p>a</p></td>
+<td class="parameter_description"><p>the value to be clamped.</p></td>
+<td class="parameter_annotations"> </td>
+</tr></tbody>
+</table></div>
+</div>
+</div>
+<hr>
+<div class="refsect2">
+<a name="SAFE-CLAMP:CAPS"></a><h3>SAFE_CLAMP()</h3>
+<pre class="programlisting">#define SAFE_CLAMP(x, low, high)  ((x) &gt; (low) ? (x) &lt; (high) ? (x) : (high) : (low))
+</pre>
+<p>Ensures that <em class="parameter"><code>x</code></em>
+ is between the limits set by <em class="parameter"><code>low</code></em>
+ and <em class="parameter"><code>high</code></em>
+,
+even if <em class="parameter"><code>x</code></em>
+ is NaN. If <em class="parameter"><code>low</code></em>
+ is greater than <em class="parameter"><code>high</code></em>
+, or if either
+of them is NaN, the result is undefined.</p>
+<div class="refsect3">
+<a name="SAFE-CLAMP.parameters"></a><h4>Parameters</h4>
+<div class="informaltable"><table class="informaltable" width="100%" border="0">
+<colgroup>
+<col width="150px" class="parameters_name">
+<col class="parameters_description">
+<col width="200px" class="parameters_annotations">
+</colgroup>
+<tbody>
+<tr>
+<td class="parameter_name"><p>x</p></td>
+<td class="parameter_description"><p>the value to be limited.</p></td>
+<td class="parameter_annotations"> </td>
+</tr>
+<tr>
+<td class="parameter_name"><p>low</p></td>
+<td class="parameter_description"><p>the lower limit.</p></td>
+<td class="parameter_annotations"> </td>
+</tr>
+<tr>
+<td class="parameter_name"><p>high</p></td>
+<td class="parameter_description"><p>the upper limit.</p></td>
+<td class="parameter_annotations"> </td>
+</tr>
+</tbody>
+</table></div>
+</div>
+<p class="since">Since: <a class="link" href="api-index-2-10.html#api-index-2.10">2.10</a></p>
+</div>
+<hr>
+<div class="refsect2">
+<a name="gimp-deg-to-rad"></a><h3>gimp_deg_to_rad()</h3>
+<pre class="programlisting">#define gimp_deg_to_rad(angle) ((angle) * (2.0 * G_PI) / 360.0)
+</pre>
+<p>This macro converts its argument <em class="parameter"><code>angle</code></em>
+ from degree to radian.</p>
+<div class="refsect3">
+<a name="gimp-deg-to-rad.parameters"></a><h4>Parameters</h4>
+<div class="informaltable"><table class="informaltable" width="100%" border="0">
+<colgroup>
+<col width="150px" class="parameters_name">
+<col class="parameters_description">
+<col width="200px" class="parameters_annotations">
+</colgroup>
+<tbody><tr>
+<td class="parameter_name"><p>angle</p></td>
+<td class="parameter_description"><p>the angle to be converted.</p></td>
+<td class="parameter_annotations"> </td>
+</tr></tbody>
+</table></div>
+</div>
+</div>
+<hr>
+<div class="refsect2">
+<a name="gimp-rad-to-deg"></a><h3>gimp_rad_to_deg()</h3>
+<pre class="programlisting">#define gimp_rad_to_deg(angle) ((angle) * 360.0 / (2.0 * G_PI))
+</pre>
+<p>This macro converts its argument <em class="parameter"><code>angle</code></em>
+ from radian to degree.</p>
+<div class="refsect3">
+<a name="gimp-rad-to-deg.parameters"></a><h4>Parameters</h4>
+<div class="informaltable"><table class="informaltable" width="100%" border="0">
+<colgroup>
+<col width="150px" class="parameters_name">
+<col class="parameters_description">
+<col width="200px" class="parameters_annotations">
+</colgroup>
+<tbody><tr>
+<td class="parameter_name"><p>angle</p></td>
+<td class="parameter_description"><p>the angle to be converted.</p></td>
+<td class="parameter_annotations"> </td>
+</tr></tbody>
+</table></div>
+</div>
+</div>
+</div>
+</div>
+<div class="footer">
+<hr>Generated by GTK-Doc V1.32</div>
+</body>
+</html>
+\ No newline at end of file
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-27 16:23:22 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-27 16:23:22 +0000
commit	e42129241681dde7adae7d20697e7b421682fbb4 (patch)
tree	af1fe815a5e639e68e59fabd8395ec69458b3e5e /devel-docs/libgimpmath/html/libgimpmath-GimpMath.html
parent	Initial commit. (diff)
download	gimp-e42129241681dde7adae7d20697e7b421682fbb4.tar.xz gimp-e42129241681dde7adae7d20697e7b421682fbb4.zip