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7<title>nngxSetProfilingParameter</title>
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10<h1><CODE>nngxSetProfilingParameter</CODE> Function</h1>
11<h2>Syntax</h2>
12    <div class="section">
13      <pre class="definition">
14NNGX_APICALL void NNGX_APIENTRY nngxSetProfilingParameter(
15     GLenum pname,
16     GLuint param
17);
18</pre>
19    </div>
20<h2>Arguments</h2>
21    <div class="section">
22      <table class="arguments">
23        <thead>
24          <tr>
25            <td width="15" />
26<th>Name</th>
27<td>Description</td>
28          </tr>
29        </thead>
30        <tr>
31<td>in</td>
32<th><CODE>pname</CODE></th>
33<td>Parameter for the profiling functionality. </td>
34        </tr>
35        <tr>
36<td>in</td>
37<th><CODE>param</CODE></th>
38<td>Value to set.</td>
39        </tr> </table>
40    </div>
41<h2>Return Values</h2>
42<div class="section">No values are returned. </div>
43<h2>Description</h2>
44    <div class="section">
45<p>Sets a parameter for the profiling features.</p><p>
46Operation is undefined when starting the profiling features (busy counters) before setting the parameters. Be sure to configure the parameters with appropriate values before starting the profiling features.
47            </p><p>
48The following table lists the parameter names and values that can be specified in <CODE>pname</CODE>.
49</p><p><TABLE><TR><TH><CODE>NN_GX_PROFILING_BUSY_SAMPLING_TIME</CODE></TH><TD>
50Specifies the amount of time per sample of the busy counter in clock ticks. Specify a 16-bit value other than <CODE>0</CODE> in <CODE>param</CODE>.<br />If <CODE>0</CODE> is specified for NN_GX_PROFILING_BUSY_SAMPLING_COUNT, it does not affect operations. (If some 16-bit value other than <CODE>0</CODE> is specified, the behavior is the same no matter what is set.)
51</TD></TR><TR><TH><CODE>NN_GX_PROFILING_BUSY_SAMPLING_TIME_MICRO_SECOND</CODE></TH><TD>
52Set to the same value as <CODE>NN_GX_PROFILING_BUSY_SAMPLING_TIME</CODE> in microseconds. You can set to a value between 1 and 244.<br />(The value set here is converted internally to clock cycles for a 268-MHz operation clock and set to the hardware. The value converted to clock cycles must fit within 16 bits.)
53</TD></TR><TR><TH><CODE>NN_GX_PROFILING_BUSY_SAMPLING_TIME_NANO_SECOND</CODE></TH><TD>
54Set to the same value as <CODE>NN_GX_PROFILING_BUSY_SAMPLING_TIME</CODE> in nanoseconds. You can set to a value between 1 and 244537.<br />(The value set here is converted internally to clock cycles for a 268-MHz operation clock and set to the hardware. The value converted to clock cycles must fit within 16 bits.)
55</TD></TR><TR><TH><CODE>NN_GX_PROFILING_BUSY_SAMPLING_COUNT</CODE></TH><TD>
56Specifies the number of samples of the busy counter. Specify a 16-bit value other than <CODE>0</CODE> in <CODE>param</CODE>. If <CODE>0</CODE> is specified, once sampling starts, it continues until <a href="../nn_gx/nngxStopProfiling.html">nngxStopProfiling</a> is called.
57                    </TD></TR></TABLE></p><p>
58This function generates the following errors.
59<TABLE><TR><TH><CODE>GL_ERROR_80A5_DMP</CODE></TH><TD>
60An invalid value was specified for the <span class="argument">pname</span> parameter.
61</TD></TR><TR><TH><CODE>GL_ERROR_80A6_DMP</CODE></TH><TD>
62An invalid value was specified for the <span class="argument">param</span> parameter.
63                        </TD></TR></TABLE></p></div>
64<h2>Revision History</h2>
65    <div class="section">
66      <dl class="history">
67        <dt>2012/02/03</dt>
68<dd>Added more comments for various parameters.<br />
69        </dd>
70        <dt>2011/08/24</dt>
71<dd>Added explanations about <CODE>NN_GX_PROFILING_BUSY_SAMPLING_TIME_MICRO_SECOND</CODE>, <CODE>NN_GX_PROFILING_BUSY_SAMPLING_TIME_NANO_SECOND</CODE>.<br />
72        </dd>
73        <dt>2011/07/28</dt>
74<dd>Initial version.<br />
75        </dd>
76      </dl>
77    </div>
78  <hr><p>CONFIDENTIAL</p></body>
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