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7<title>MapTexture2DResource</title>
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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/Resource/Overview.html">Resource</a>::MapTexture2DResource</CODE> Member Function</h1>
11<h2>Syntax</h2>
12    <div class="section">
13      <pre class="definition">
14static <a href="../../../../nnResult/Overview.html">nnResult</a> MapTexture2DResource(
15     Texture2DResource * texture2DResource,
16     <a href="../../../../nn_types/s32.html">s32</a> mipLevelIndex,
17     <a href="../../../../nn/gd/CTR/Resource/MapUsage.html">MapUsage</a> usage,
18     void ** data
19);
20</pre>
21    </div>
22<h2>Parameters</h2>
23    <div class="section">
24      <table class="arguments">
25        <thead>
26          <tr>
27            <td width="15" />
28<th>Name</th>
29<td>Description</td>
30          </tr>
31        </thead>
32        <tr>
33<td>in</td>
34<th>texture2DResource</th>
35<td>Specifies the pointer to the 2D texture resource for the data pointer being obtained.</td>
36        </tr>
37        <tr>
38<td>in</td>
39<th>mipLevelIndex</th>
40<td>Specifies the pointer to the mipmap level index for the data pointer being obtained. If -1 is specified, the last mipmap level is used.</td>
41        </tr>
42        <tr>
43<td>in</td>
44<th>usage</th>
45<td>Specifies how the resource is to be used.</td>
46        </tr>
47        <tr>
48<td>out</td>
49<th><CODE>data</CODE></th>
50<td>Specifies the address for storing the pointer to the obtained data.</td>
51        </tr> </table>
52    </div>
53<h2>Return Values</h2>
54<div class="section">Returns the result of the operation. <br />
55      <table class="arguments">
56        <thead>
57          <tr>
58<th>Value</th>
59<td>Description</td>
60          </tr>
61        </thead>
62        <tr>
63<th><CODE>Result::IsSuccess</CODE></th>
64<td>Process was successful.</td>
65        </tr>
66        <tr>
67<th><CODE>ResultNullParameter</CODE></th>
68<td><CODE>NULL </CODE>was specified for either <B>texture2DResource </B>or <B>data</B>.</td>
69        </tr>
70        <tr>
71<th><CODE>ResultInvalidMemoryRegion</CODE></th>
72<td>Either the resource memory type or the usage method is invalid. It might be that an attempt was made by <CODE>MAP_WRITE_ONLY</CODE> or <CODE>MAP_READ_WRITE</CODE> to get a memory region that was allocated to VRAM.</td>
73        </tr>
74        <tr>
75<th><CODE>ResultInvalidTextureMipLevelIndex</CODE></th>
76<td><CODE>mipLevelIndex</CODE> is invalid.</td>
77        </tr>
78        <tr>
79<th>ResultResourceAlreadyMapped</th>
80<td>The resource has already been mapped.</td>
81        </tr>
82      </table> </div>
83<h2>Description</h2>
84    <div class="section">
85<p>Obtains a data pointer for the specified resource.</p><p>User applications can directly edit only the memory region allocated for <span>Memory::FCRAM</span>. You must check that all 3D commands have executed using this function to prevent memory to be acquired from being modified by CPU execution.</p><!-- write here --></div>
86<h2>Revision History</h2>
87    <div class="section">
88      <dl class="history">
89        <dt>2011/02/17</dt>
90<dd>Initial version.<br />
91        </dd>
92      </dl>
93    </div>
94  <hr><p>CONFIDENTIAL</p></body>
95</html>