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2 <!-- CreationDate: Mon Mar 13 18:03:09 2006 --> |
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7 <title>TIFFReadEncodedStrip</title> |
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10 |
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11 <h1 align=center>TIFFReadEncodedStrip</h1> |
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12 <a href="#NAME">NAME</a><br> |
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13 <a href="#SYNOPSIS">SYNOPSIS</a><br> |
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14 <a href="#DESCRIPTION">DESCRIPTION</a><br> |
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15 <a href="#NOTES">NOTES</a><br> |
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16 <a href="#RETURN VALUES">RETURN VALUES</a><br> |
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17 <a href="#DIAGNOSTICS">DIAGNOSTICS</a><br> |
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18 <a href="#SEE ALSO">SEE ALSO</a><br> |
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19 |
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21 <a name="NAME"></a> |
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22 <h2>NAME</h2> |
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29 <p><big>TIFFReadEncodedStrip − read and decode a strip |
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30 of data from an open</big> TIFF <big>file</big></p> |
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31 </td> |
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32 </table> |
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33 <a name="SYNOPSIS"></a> |
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34 <h2>SYNOPSIS</h2> |
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41 <p><big><b>#include <tiffio.h></b></big></p> |
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43 <p><big><b>tsize_t TIFFReadEncodedStrip(TIFF |
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44 *</b><i>tif</i><b>, tstrip_t</b> <i>strip</i><b>, |
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45 tdata_t</b> <i>buf</i><b>, tsize_t</b> |
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46 <i>size</i><b>)</b></big></p> |
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47 </td> |
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48 </table> |
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49 <a name="DESCRIPTION"></a> |
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50 <h2>DESCRIPTION</h2> |
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57 <p><big>Read the specified strip of data and place up to |
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58 <i>size</i> bytes of decompressed information in the (user |
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59 supplied) data buffer.</big></p> |
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60 </td> |
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61 </table> |
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62 <a name="NOTES"></a> |
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63 <h2>NOTES</h2> |
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70 <p><big>The value of <i>strip</i> is a ‘‘raw |
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71 strip number.’’ That is, the caller must take |
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72 into account whether or not the data are organized in |
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73 separate planes (<i>PlanarConfiguration</i>=2). To read a |
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74 full strip of data the data buffer should typically be at |
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75 least as large as the number returned by |
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76 <b>TIFFStripSize</b>(3TIFF). If the -1 passed in <i>size</i> |
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77 parameter, the whole strip will be read. You should be sure |
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78 you have enough space allocated for the buffer.</big></p> |
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79 <!-- INDENTATION --> |
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80 <p><big>The library attempts to hide bit- and byte-ordering |
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81 differences between the image and the native machine by |
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82 converting data to the native machine order. Bit reversal is |
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83 done if the <i>FillOrder</i> tag is opposite to the native |
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84 machine bit order. 16- and 32-bit samples are automatically |
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85 byte-swapped if the file was written with a byte order |
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86 opposite to the native machine byte order,</big></p> |
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87 </td> |
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88 </table> |
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89 <a name="RETURN VALUES"></a> |
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90 <h2>RETURN VALUES</h2> |
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97 <p><big>The actual number of bytes of data that were placed |
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98 in <i>buf</i> is returned; <i>TIFFReadEncodedStrip</i> |
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99 returns −1 if an error was encountered.</big></p> |
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100 </td> |
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101 </table> |
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102 <a name="DIAGNOSTICS"></a> |
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103 <h2>DIAGNOSTICS</h2> |
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110 <p><big>All error messages are directed to the |
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111 <b>TIFFError</b>(3TIFF) routine.</big></p> |
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112 </td> |
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113 </table> |
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114 <a name="SEE ALSO"></a> |
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115 <h2>SEE ALSO</h2> |
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120 <td width="8%"></td> |
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121 <td width="91%"> |
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122 <p><big><b>TIFFOpen</b>(3TIFF), |
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123 <b>TIFFReadRawStrip</b>(3TIFF), |
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124 <b>TIFFReadScanline</b>(3TIFF), |
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125 <b>libtiff</b>(3TIFF)</big></p> |
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126 <!-- INDENTATION --> |
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127 <p><big>Libtiff library home page: |
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128 <b>http://www.remotesensing.org/libtiff/</b></big></p> |
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129 </td> |
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130 </table> |
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131 <hr> |
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133 </html> |