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<meta name="generator" content="groff -Thtml, see www.gnu.org">
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<title>TIFFBUFFER</title>
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TIFFBUFFER
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NAME
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SYNOPSIS
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DESCRIPTION
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DIAGNOSTICS
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SEE ALSO
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NAME
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cols="2" cellspacing="0" cellpadding="0">
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TIFFReadBufferSetup, TIFFWriteBufferSetup − I/O
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buffering control routines
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SYNOPSIS
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cols="2" cellspacing="0" cellpadding="0">
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#include <tiffio.h>
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int TIFFReadBufferSetup(TIFF *tif, tdata_t buffer, tsize_t size);
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int TIFFWriteBufferSetup(TIFF *tif, tdata_t buffer, tsize_t size);
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DESCRIPTION
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cols="2" cellspacing="0" cellpadding="0">
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The following routines are provided for client-control of
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the I/O buffers used by the library. Applications need never
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use these routines; they are provided only for
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‘‘intelligent clients’’ that wish to
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optimize memory usage and/or eliminate potential copy
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operations that can occur when working with images that have
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data stored without compression.
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TIFFReadBufferSetup sets up the data buffer used
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to read raw (encoded) data from a file. If the specified
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pointer is <small>NULL</small> (zero), then a buffer of the
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appropriate size is allocated. Otherwise the caller must
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guarantee that the buffer is large enough to hold any
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individual strip of raw data. TIFFReadBufferSetup
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returns a non-zero value if the setup was successful and
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zero otherwise.
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TIFFWriteBufferSetup sets up the data buffer used
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to write raw (encoded) data to a file. If the specified
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size is −1 then the buffer size is selected to
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hold a complete tile or strip, or at least 8 kilobytes,
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whichever is greater. If the specified buffer is
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<small>NULL</small> (zero), then a buffer of the appropriate
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size is dynamically allocated. TIFFWriteBufferSetup
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returns a non-zero value if the setup was successful and
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zero otherwise.
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DIAGNOSTICS
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cols="2" cellspacing="0" cellpadding="0">
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%s: No space for data buffer at scanline %ld.
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TIFFReadBufferSetup was unable to dynamically
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allocate space for a data buffer.
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%s: No space for output buffer.
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TIFFWriteBufferSetup was unable to dynamically
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allocate space for a data buffer.
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SEE ALSO
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cols="2" cellspacing="0" cellpadding="0">
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libtiff(3TIFF)
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Libtiff library home page:
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http://www.simplesystems.org/libtiff/
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</body>
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</html>
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