projects / wxWidgets.git / blame
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|---|---|---|
| 8414a40c | 1 | <!-- Creator : groff version 1.18.1 --> |
| 80ed523f | 2 | <!-- CreationDate: Sat Feb 24 18:37:17 2007 --> |
| 8414a40c VZ |
3 | <html> |
| 4 | <head> | |
| 5 | <meta name="generator" content="groff -Thtml, see www.gnu.org"> | |
| 6 | <meta name="Content-Style" content="text/css"> | |
| 7 | <title>TIFFReadTile</title> | |
| 8 | </head> | |
| 9 | <body> | |
| 10 | ||
| 11 | <h1 align=center>TIFFReadTile</h1> | |
| 12 | <a href="#NAME">NAME</a><br> | |
| 13 | <a href="#SYNOPSIS">SYNOPSIS</a><br> | |
| 14 | <a href="#DESCRIPTION">DESCRIPTION</a><br> | |
| 15 | <a href="#NOTES">NOTES</a><br> | |
| 16 | <a href="#RETURN VALUES">RETURN VALUES</a><br> | |
| 17 | <a href="#DIAGNOSTICS">DIAGNOSTICS</a><br> | |
| 18 | <a href="#SEE ALSO">SEE ALSO</a><br> | |
| 19 | ||
| 20 | <hr> | |
| 21 | <a name="NAME"></a> | |
| 22 | <h2>NAME</h2> | |
| 23 | <!-- INDENTATION --> | |
| 24 | <table width="100%" border=0 rules="none" frame="void" | |
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| 26 | <tr valign="top" align="left"> | |
| 27 | <td width="8%"></td> | |
| 28 | <td width="91%"> | |
| 29 | <p>TIFFReadTile − read and decode a tile of data from | |
| 30 | an open <small>TIFF</small> file</p> | |
| 31 | </td> | |
| 32 | </table> | |
| 33 | <a name="SYNOPSIS"></a> | |
| 34 | <h2>SYNOPSIS</h2> | |
| 35 | <!-- INDENTATION --> | |
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| 40 | <td width="91%"> | |
| 41 | <p><b>#include <tiffio.h></b></p> | |
| 42 | <!-- INDENTATION --> | |
| 43 | <p><b>tsize_t TIFFReadTile(TIFF *</b><i>tif</i><b>, | |
| 44 | tdata_t</b> <i>buf</i><b>, uint32</b> <i>x</i><b>, | |
| 45 | uint32</b> <i>y</i><b>, uint32</b> <i>z</i><b>, | |
| 46 | tsample_t</b> <i>sample</i><b>)</b></p> | |
| 47 | </td> | |
| 48 | </table> | |
| 49 | <a name="DESCRIPTION"></a> | |
| 50 | <h2>DESCRIPTION</h2> | |
| 51 | <!-- INDENTATION --> | |
| 52 | <table width="100%" border=0 rules="none" frame="void" | |
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| 56 | <td width="91%"> | |
| 57 | <p>Return the data for the tile <i>containing</i> the | |
| 58 | specified coordinates. The data placed in <i>buf</i> are | |
| 59 | returned decompressed and, typically, in the native byte- | |
| 60 | and bit-ordering, but are otherwise packed (see further | |
| 61 | below). The buffer must be large enough to hold an entire | |
| 62 | tile of data. Applications should call the routine | |
| 63 | <i>TIFFTileSize</i> to find out the size (in bytes) of a | |
| 64 | tile buffer. The <i>x</i> and <i>y</i> parameters are always | |
| 65 | used by <i>TIFFReadTile</i>. The <i>z</i> parameter is used | |
| 66 | if the image is deeper than 1 slice | |
| 67 | (<i>ImageDepth</i>>1). The <i>sample</i> parameter is | |
| 68 | used only if data are organized in separate planes | |
| 69 | (<i>PlanarConfiguration</i>=2).</p> | |
| 70 | </td> | |
| 71 | </table> | |
| 72 | <a name="NOTES"></a> | |
| 73 | <h2>NOTES</h2> | |
| 74 | <!-- INDENTATION --> | |
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| 78 | <td width="8%"></td> | |
| 79 | <td width="91%"> | |
| 80 | <p>The library attempts to hide bit- and byte-ordering | |
| 81 | differences between the image and the native machine by | |
| 82 | converting data to the native machine order. Bit reversal is | |
| 83 | done if the <i>FillOrder</i> tag is opposite to the native | |
| 84 | machine bit order. 16- and 32-bit samples are automatically | |
| 85 | byte-swapped if the file was written with a byte order | |
| 86 | opposite to the native machine byte order,</p> | |
| 87 | </td> | |
| 88 | </table> | |
| 89 | <a name="RETURN VALUES"></a> | |
| 90 | <h2>RETURN VALUES</h2> | |
| 91 | <!-- INDENTATION --> | |
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| 93 | cols="2" cellspacing="0" cellpadding="0"> | |
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| 95 | <td width="8%"></td> | |
| 96 | <td width="91%"> | |
| 97 | <p><i>TIFFReadTile</i> returns −1 if it detects an | |
| 98 | error; otherwise the number of bytes in the decoded tile is | |
| 99 | returned.</p> | |
| 100 | </td> | |
| 101 | </table> | |
| 102 | <a name="DIAGNOSTICS"></a> | |
| 103 | <h2>DIAGNOSTICS</h2> | |
| 104 | <!-- INDENTATION --> | |
| 105 | <table width="100%" border=0 rules="none" frame="void" | |
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| 108 | <td width="8%"></td> | |
| 109 | <td width="91%"> | |
| 110 | <p>All error messages are directed to the | |
| 111 | <b>TIFFError</b>(3TIFF) routine.</p> | |
| 112 | </td> | |
| 113 | </table> | |
| 114 | <a name="SEE ALSO"></a> | |
| 115 | <h2>SEE ALSO</h2> | |
| 116 | <!-- INDENTATION --> | |
| 117 | <table width="100%" border=0 rules="none" frame="void" | |
| 118 | cols="2" cellspacing="0" cellpadding="0"> | |
| 119 | <tr valign="top" align="left"> | |
| 120 | <td width="8%"></td> | |
| 121 | <td width="91%"> | |
| 122 | <p><b>TIFFCheckTile</b>(3TIFF), | |
| 123 | <b>TIFFComputeTile</b>(3TIFF), <b>TIFFOpen</b>(3TIFF), | |
| 124 | <b>TIFFReadEncodedTile</b>(3TIFF), | |
| 125 | <b>TIFFReadRawTile</b>(3TIFF), <b>libtiff</b>(3TIFF)</p> | |
| 126 | <!-- INDENTATION --> | |
| 127 | <p>Libtiff library home page: | |
| 128 | <b>http://www.remotesensing.org/libtiff/</b></p> | |
| 129 | </td> | |
| 130 | </table> | |
| 131 | <hr> | |
| 132 | </body> | |
| 133 | </html> |