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14<h1 align="left">MI_ReadUncompRL* <IMG src="../../image/NTR.gif" align="middle"><IMG src="../../image/TWL.gif" align="middle"></h1>
15<h2>Syntax</h2>
16
17<dl>
18  <dd>
19  <PRE><CODE>#include &lt;nitro/mi/uncomp_stream.h&gt;</CODE><BR>
20  <BR>
21<CODE>s32 MI_ReadUncompRL8(  <A href="MIUncompContextRL.html">MIUncompContextRL</A> *context,
22                          const u8* data,
23                          u32 len );</CODE><br>
24<CODE>s32 MI_ReadUncompRL16( <A href="MIUncompContextRL.html">MIUncompContextRL</A> *context,
25                          const u8* data,
26u32 len );</CODE></PRE>
27  </dd>
28</dl>
29<h2>Arguments</h2>
30<TABLE border="1" width="100%">
31  <TBODY>
32    <TR>
33<TD width="13%"><SPAN class="argument">context</SPAN></TD>
34<TD width="87%">Pointer to the context structure for uncompression of RL-compressed data.</TD>
35    </TR>
36    <TR>
37<TD width="13%"><SPAN class="argument">data</SPAN></TD>
38<TD width="87%">Pointer to a portion of the data to be uncompressed.</TD>
39    </TR>
40    <TR>
41<TD><SPAN class="argument">len</SPAN></TD>
42<TD>Size of the data provided in the second argument.</TD>
43    </TR>
44  </TBODY>
45</TABLE>
46
47<h2>Return Values</h2>
48<p>Returns the number of remaining bytes of data being uncompressed. If all of the data is finished being uncompressed, the function returns 0.</p>
49
50<H2>Description</H2>
51<P>Performs streaming uncompression of run-length compressed data, doing just the data size given, and copying it to the buffer specified by the <A href="MI_InitUncompContextRL.html"><CODE>MI_InitUncompContextRL</CODE></A> function. This function is slow compared to the <a href="MI_UncompressRL.html"><code>MI_UncompressRL*</code></a> function, which uncompresses all the data at once.</P>
52<P>The <code>MI_ReadUncompRL8</code> function writes in units of 8 bits. On NITRO, you cannot decompress directly to VRAM. On TWL, this is possible, but it is quite slow.<BR><BR> The <code>MI_ReadUncompRL16</code> function writes in units of 16 bits. On both NITRO and TWL, you can also decompress directly to VRAM. However, the process is slower compared to normal memory.</P>
53<h2>Internal Operation</h2>
54<P>Processing takes place only on the CPU, without the use of a system call or DMA.</P>
55<h2>See Also</h2>
56<p><A href="MI_UncompressRL.html"><CODE>MI_UncompressRL*</CODE></A><BR> <A href="MI_InitUncompContextRL.html"><CODE>MI_InitUncompContextRL</CODE></A><BR> <A href="MIUncompContextRL.html"><CODE>MIUncompContextRL</CODE></A><BR> <A href="MI_ReadUncompLZ.html"><CODE>MI_ReadUncompLZ*</CODE></A><BR> <A href="MI_ReadUncompHuffman.html"><CODE>MI_ReadUncompHuffman</CODE></A><BR> <A href="MI_CompressRL.html"><CODE>MI_CompressRL</CODE></A></p>
57
58<H2>Revision History</H2>
59<P>
602008/12/05 Added description related to TWL.<br /> 2004/11/30 Initial version.</P>
61<hr><p>CONFIDENTIAL</p></body>
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