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1 <!-- Creator : groff version 1.18.1 --> |
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2 <!-- CreationDate: Mon Mar 13 18:03:08 2006 --> |
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4 <head> |
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5 <meta name="generator" content="groff -Thtml, see www.gnu.org"> |
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6 <meta name="Content-Style" content="text/css"> |
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7 <title>TIFFBUFFER</title> |
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8 </head> |
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9 <body> |
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10 |
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11 <h1 align=center>TIFFBUFFER</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="#DIAGNOSTICS">DIAGNOSTICS</a><br> |
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16 <a href="#SEE ALSO">SEE ALSO</a><br> |
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17 |
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18 <hr> |
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19 <a name="NAME"></a> |
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20 <h2>NAME</h2> |
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25 <td width="8%"></td> |
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26 <td width="91%"> |
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27 <p>TIFFReadBufferSetup, TIFFWriteBufferSetup − I/O |
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28 buffering control routines</p> |
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29 </td> |
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30 </table> |
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31 <a name="SYNOPSIS"></a> |
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32 <h2>SYNOPSIS</h2> |
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39 <pre><b>#include <tiffio.h> |
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40 |
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41 int TIFFReadBufferSetup(TIFF *</b><i>tif</i><b>, tdata_t</b> <i>buffer</i><b>, tsize_t</b> <i>size</i><b>); |
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42 int TIFFWriteBufferSetup(TIFF *</b><i>tif</i><b>, tdata_t</b> <i>buffer</i><b>, tsize_t</b> <i>size</i><b>); |
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43 </b></pre> |
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44 </td> |
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45 </table> |
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46 <a name="DESCRIPTION"></a> |
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47 <h2>DESCRIPTION</h2> |
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48 <!-- INDENTATION --> |
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55 <p>The following routines are provided for client-control of |
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56 the I/O buffers used by the library. Applications need never |
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57 use these routines; they are provided only for |
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58 ‘‘intelligent clients’’ that wish to |
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59 optimize memory usage and/or eliminate potential copy |
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60 operations that can occur when working with images that have |
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61 data stored without compression.</p> |
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62 <!-- INDENTATION --> |
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63 <p><i>TIFFReadBufferSetup</i> sets up the data buffer used |
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64 to read raw (encoded) data from a file. If the specified |
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65 pointer is <small>NULL</small> (zero), then a buffer of the |
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66 appropriate size is allocated. Otherwise the caller must |
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67 guarantee that the buffer is large enough to hold any |
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68 individual strip of raw data. <i>TIFFReadBufferSetup</i> |
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69 returns a non-zero value if the setup was successful and |
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70 zero otherwise.</p> |
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71 <!-- INDENTATION --> |
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72 <p><i>TIFFWriteBufferSetup</i> sets up the data buffer used |
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73 to write raw (encoded) data to a file. If the specified |
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74 <i>size</i> is −1 then the buffer size is selected to |
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75 hold a complete tile or strip, or at least 8 kilobytes, |
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76 whichever is greater. If the specified <i>buffer</i> is |
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77 <small>NULL</small> (zero), then a buffer of the appropriate |
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78 size is dynamically allocated. <i>TIFFWriteBufferSetup</i> |
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79 returns a non-zero value if the setup was successful and |
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80 zero otherwise.</p> |
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81 </td> |
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82 </table> |
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83 <a name="DIAGNOSTICS"></a> |
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84 <h2>DIAGNOSTICS</h2> |
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85 <!-- INDENTATION --> |
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89 <td width="8%"></td> |
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90 <td width="91%"> |
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91 <p><b>%s: No space for data buffer at scanline %ld</b>. |
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92 <i>TIFFReadBufferSetup</i> was unable to dynamically |
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93 allocate space for a data buffer.</p> |
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94 <!-- INDENTATION --> |
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95 <p><b>%s: No space for output buffer</b>. |
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96 <i>TIFFWriteBufferSetup</i> was unable to dynamically |
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97 allocate space for a data buffer.</p> |
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98 </td> |
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99 </table> |
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100 <a name="SEE ALSO"></a> |
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101 <h2>SEE ALSO</h2> |
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106 <td width="8%"></td> |
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107 <td width="91%"> |
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108 <p><b>libtiff</b>(3TIFF)</p> |
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109 <!-- INDENTATION --> |
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110 <p>Libtiff library home page: |
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111 <b>http://www.remotesensing.org/libtiff/</b></p> |
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112 </td> |
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113 </table> |
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114 <hr> |
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115 </body> |
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116 </html> |