/usr/share/gtk-doc/html/cogl-2.0-experimental/cogl-2.0-experimental-Sub-Textures.html is in libcogl-doc 1.10.2-7.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 | <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Sub Textures</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="index.html" title="Cogl 2.0 Reference Manual">
<link rel="up" href="cogl-meta-textures.html" title="Meta Textures">
<link rel="prev" href="cogl-2.0-experimental-High-Level-Meta-Textures.html" title="High Level Meta Textures">
<link rel="next" href="cogl-2.0-experimental-Sliced-Textures.html" title="Sliced Textures">
<meta name="generator" content="GTK-Doc V1.18 (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="2">
<tr valign="middle">
<td><a accesskey="p" href="cogl-2.0-experimental-High-Level-Meta-Textures.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td>
<td><a accesskey="u" href="cogl-meta-textures.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td>
<th width="100%" align="center">Cogl 2.0 Reference Manual</th>
<td><a accesskey="n" href="cogl-2.0-experimental-Sliced-Textures.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td>
</tr>
<tr><td colspan="5" class="shortcuts">
<a href="#cogl-2.0-experimental-Sub-Textures.synopsis" class="shortcut">Top</a>
|
<a href="#cogl-2.0-experimental-Sub-Textures.description" class="shortcut">Description</a>
</td></tr>
</table>
<div class="refentry">
<a name="cogl-2.0-experimental-Sub-Textures"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="cogl-2.0-experimental-Sub-Textures.top_of_page"></a>Sub Textures</span></h2>
<p>Sub Textures — Functions for creating and manipulating
sub-textures.</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="cogl-2.0-experimental-Sub-Textures.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis"> <a class="link" href="cogl-2.0-experimental-Sub-Textures.html#CoglSubTexture" title="CoglSubTexture">CoglSubTexture</a>;
#define <a class="link" href="cogl-2.0-experimental-Sub-Textures.html#cogl-sub-texture-new" title="cogl_sub_texture_new">cogl_sub_texture_new</a>
#define <a class="link" href="cogl-2.0-experimental-Sub-Textures.html#cogl-is-sub-texture" title="cogl_is_sub_texture">cogl_is_sub_texture</a>
</pre>
</div>
<div class="refsect1">
<a name="cogl-2.0-experimental-Sub-Textures.description"></a><h2>Description</h2>
<p>
These functions allow high-level textures to be created that
represent a sub-region of another texture. For example these
can be used to implement custom texture atlasing schemes.
</p>
</div>
<div class="refsect1">
<a name="cogl-2.0-experimental-Sub-Textures.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="CoglSubTexture"></a><h3>CoglSubTexture</h3>
<pre class="programlisting">typedef struct _CoglSubTexture CoglSubTexture;</pre>
</div>
<hr>
<div class="refsect2">
<a name="cogl-sub-texture-new"></a><h3>cogl_sub_texture_new</h3>
<pre class="programlisting">#define cogl_sub_texture_new cogl_sub_texture_new_EXP
</pre>
<p>
Creates a high-level <a class="link" href="cogl-2.0-experimental-Sub-Textures.html#CoglSubTexture" title="CoglSubTexture"><span class="type">CoglSubTexture</span></a> representing a sub-region of
any other <a class="link" href="cogl-2.0-experimental-The-Texture-Interface.html#CoglTexture" title="CoglTexture"><span class="type">CoglTexture</span></a>. The sub-region must strictly lye within the
bounds of the <em class="parameter"><code>parent_texture</code></em>. The returned texture implements the
<a class="link" href="cogl-2.0-experimental-High-Level-Meta-Textures.html#CoglMetaTexture" title="CoglMetaTexture"><span class="type">CoglMetaTexture</span></a> interface because it's not a low level texture
that hardware can understand natively.
</p>
<p>
</p>
<div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Note</h3>Remember: Unless you are using high level drawing APIs such
as <a class="link" href="cogl-2.0-experimental-Rectangles.html#cogl-rectangle" title="cogl_rectangle ()"><code class="function">cogl_rectangle()</code></a> or other APIs documented to understand the
<a class="link" href="cogl-2.0-experimental-High-Level-Meta-Textures.html#CoglMetaTexture" title="CoglMetaTexture"><span class="type">CoglMetaTexture</span></a> interface then you need to use the
<a class="link" href="cogl-2.0-experimental-High-Level-Meta-Textures.html#CoglMetaTexture" title="CoglMetaTexture"><span class="type">CoglMetaTexture</span></a> interface to resolve a <a class="link" href="cogl-2.0-experimental-Sub-Textures.html#CoglSubTexture" title="CoglSubTexture"><span class="type">CoglSubTexture</span></a> into a
low-level texture before drawing.</div>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td>
<td>A <span class="type">CoglContext</span> pointer</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>parent_texture</code></em> :</span></p></td>
<td>The full texture containing a sub-region you want
to make a <a class="link" href="cogl-2.0-experimental-Sub-Textures.html#CoglSubTexture" title="CoglSubTexture"><span class="type">CoglSubTexture</span></a> from.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>sub_x</code></em> :</span></p></td>
<td>The top-left x coordinate of the parent region to make
a texture from.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>sub_y</code></em> :</span></p></td>
<td>The top-left y coordinate of the parent region to make
a texture from.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>sub_width</code></em> :</span></p></td>
<td>The width of the parent region to make a texture from.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>sub_height</code></em> :</span></p></td>
<td>The height of the parent region to make a texture
from.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>A newly allocated <a class="link" href="cogl-2.0-experimental-Sub-Textures.html#CoglSubTexture" title="CoglSubTexture"><span class="type">CoglSubTexture</span></a> representing a
sub-region of <em class="parameter"><code>parent_texture</code></em>.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 1.10</p>
<p class="stability">Stability Level: Unstable</p>
</div>
<hr>
<div class="refsect2">
<a name="cogl-is-sub-texture"></a><h3>cogl_is_sub_texture</h3>
<pre class="programlisting">#define cogl_is_sub_texture cogl_is_sub_texture_EXP
</pre>
<p>
Checks whether <em class="parameter"><code>object</code></em> is a <a class="link" href="cogl-2.0-experimental-Sub-Textures.html#CoglSubTexture" title="CoglSubTexture"><span class="type">CoglSubTexture</span></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>object</code></em> :</span></p></td>
<td>a <a class="link" href="cogl-2.0-experimental-The-Object-Interface.html#CoglObject" title="CoglObject"><span class="type">CoglObject</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<code class="literal">TRUE</code> if the passed <em class="parameter"><code>object</code></em> represents a
<a class="link" href="cogl-2.0-experimental-Sub-Textures.html#CoglSubTexture" title="CoglSubTexture"><span class="type">CoglSubTexture</span></a> and <code class="literal">FALSE</code> otherwise.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 1.10</p>
<p class="stability">Stability Level: Unstable</p>
</div>
</div>
</div>
<div class="footer">
<hr>
Generated by GTK-Doc V1.18</div>
</body>
</html>
|