1<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
2<html xml:lang="en-US" lang="en-US" xmlns="http://www.w3.org/1999/xhtml">
3  <head>
4    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
5    <meta http-equiv="Content-Style-Type" content="text/css" />
6    <link rel="stylesheet" href="../../../../css/manpage.css" type="text/css" />
7<title>GenerateMipMaps</title>
8  </head>
9  <body>
10<h1><CODE><a href="../../../../nn/Overview.html">nn</a>::<a href="../../../../nn/gd/Overview.html">gd</a>::<a href="../../../../nn/gd/CTR/Overview.html">CTR</a>::<a href="../../../../nn/gd/CTR/Memory/Overview.html">Memory</a>::GenerateMipMaps</CODE> Member Function</h1>
11<h2>Syntax</h2>
12    <div class="section">
13      <pre class="definition">
14static <a href="../../../../nnResult/Overview.html">nnResult</a> GenerateMipMaps(
15     const Texture2DResource * tex2DResource,
16     u32 mipLevelSourceIndex,
17     s32 mipLevelLastDestinationIndex
18);
19</pre>
20    </div>
21<h2>Arguments</h2>
22    <div class="section">
23      <table class="arguments">
24        <thead>
25          <tr>
26            <td width="15" />
27<th>Name</th>
28<td>Description</td>
29          </tr>
30        </thead>
31        <tr>
32<td>in</td>
33<th>tex2DResource</th>
34<td>Specifies the source <SPAN class="Argument">Texture2DResource</SPAN> resource. </td>
35        </tr>
36        <tr>
37<td>in</td>
38<th>mipLevelSourceIndex</th>
39<td>Specifies the index of the mipmap level of the source. </td>
40        </tr>
41        <tr>
42<td>in</td>
43<th>mipLevelLastDestinationIndex</th>
44<td>Specifies the index of the last mipmap level of the destination.  If <CODE>-1</CODE> is specified, the last mipmap level index is used. </td>
45        </tr> </table>
46    </div>
47<h2>Return Values</h2>
48<div class="section">Returns the result of the operation. <br />
49      <table class="arguments">
50        <thead>
51          <tr>
52<th>Value</th>
53<td>Description</td>
54          </tr>
55        </thead>
56        <tr>
57<th><CODE>Result::IsSuccess</CODE></th>
58<td>Process was successful.</td>
59        </tr>
60        <tr>
61<th>ResultNullParameter</th>
62<td>NULL was specified for the specified <SPAN class="Argument">Texture2DResource</SPAN> resource. </td>
63        </tr>
64        <tr>
65<th>ResultInvalidTextureMipLevelIndex</th>
66<td>The mipmap index is invalid. </td>
67        </tr>
68        <tr>
69<th>ResultInvalidTextureFormat</th>
70<td>The specified resource pixel format size is invalid. Specify a pixel format size of 32, 24, or 16. </td>
71        </tr>
72        <tr>
73<th>ResultInvalidTextureResolution</th>
74<td>The resolution of the smallest mipmap level is 32 bytes when the pixel format size of the specified format is 32-bit or 24-bit, but is 64 bytes when the pixel format size is 16-bit.</td>
75        </tr>
76      </table> </div>
77<h2>Description</h2>
78    <div class="section">
79<p>Creates a <SPAN class="Argument">Texture2DResource</SPAN> resource mipmap. </p><p>Pixel formats that can be specified: <br /><itemizedlist><listitem><para>NATIVE_FORMAT_RGBA_8888 <br /></para></listitem><listitem><para>NATIVE_FORMAT_RGB_888 <br /></para></listitem><listitem><para>NATIVE_FORMAT_RGBA_4444 <br /></para></listitem><listitem><para>NATIVE_FORMAT_RGBA_5551 <br /></para></listitem><listitem><para>NATIVE_FORMAT_RGB_565 <br /></para></listitem></itemizedlist> If the pixel format of the <CODE>Texture2DResource</CODE> resource is 24 or 32 bits, the data size for the mipmap level to be created is either larger than that or 32x32. If the pixel format of the <SPAN class="Argument">Texture2DResource</SPAN> resource is 16-bit, the data size for the mipmap level to be created is either larger than that or 64x64. A function with the same functionality as <CODE>nngxFilterBlockImage</CODE> is called internally. <br /> This function is added to the command list. See the Programming Guide for details.</p><!-- write here --></div>
80<h2>Revision History</h2>
81    <div class="section">
82      <dl class="history">
83        <dt>2011/02/17</dt>
84<dd>Initial version.<br />
85        </dd>
86      </dl>
87    </div>
88  <hr><p>CONFIDENTIAL</p></body>
89</html>
90