75 lines
3.1 KiB
Plaintext
75 lines
3.1 KiB
Plaintext
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.\" $Id: TIFFbuffer.3tiff,v 1.1 2004-11-11 14:39:16 dron Exp $
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.\"
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.\" Copyright (c) 1995 Sam Leffler
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.\" Copyright (c) 1995 Silicon Graphics, Inc.
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.\"
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.\" Permission to use, copy, modify, distribute, and sell this software and
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.\" its documentation for any purpose is hereby granted without fee, provided
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.\" that (i) the above copyright notices and this permission notice appear in
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.\" all copies of the software and related documentation, and (ii) the names of
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.\" Sam Leffler and Silicon Graphics may not be used in any advertising or
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.\" publicity relating to the software without the specific, prior written
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.\" permission of Sam Leffler and Silicon Graphics.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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.\"
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.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
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.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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.\" OF THIS SOFTWARE.
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.\"
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.if n .po 0
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.TH TIFFBUFFER 3TIFF "October 15, 1995" "libtiff"
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.SH NAME
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TIFFReadBufferSetup, TIFFWriteBufferSetup \- I/O buffering control routines
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.SH SYNOPSIS
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.nf
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.B "#include <tiffio.h>"
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.sp
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.BI "int TIFFReadBufferSetup(TIFF *" tif ", tdata_t " buffer ", tsize_t " size ");"
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.BI "int TIFFWriteBufferSetup(TIFF *" tif ", tdata_t " buffer ", tsize_t " size ");"
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.fi
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.SH DESCRIPTION
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The following routines are provided for client-control of the I/O buffers used
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by the library. Applications need never use these routines; they are provided
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only for ``intelligent clients'' that wish to optimize memory usage and/or
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eliminate potential copy operations that can occur when working with images
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that have data stored without compression.
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.PP
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.I TIFFReadBufferSetup
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sets up the data buffer used to read raw (encoded) data from a file. If the
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specified pointer is
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.SM NULL
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(zero), then a buffer of the appropriate size is allocated. Otherwise the
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caller must guarantee that the buffer is large enough to hold any individual
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strip of raw data.
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.I TIFFReadBufferSetup
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returns a non-zero value if the setup was successful and zero otherwise.
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.PP
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.I TIFFWriteBufferSetup
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sets up the data buffer used to write raw (encoded) data to a file. If the
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specified
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.I size
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is \-1 then the buffer size is selected to hold a complete tile or strip, or
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at least 8 kilobytes, whichever is greater. If the specified
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.I buffer
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is
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.SM NULL
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(zero), then a buffer of the appropriate size is dynamically allocated.
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.I TIFFWriteBufferSetup
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returns a non-zero value if the setup was successful and zero otherwise.
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.SH DIAGNOSTICS
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.BR "%s: No space for data buffer at scanline %ld" .
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.I TIFFReadBufferSetup
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was unable to dynamically allocate space for a data buffer.
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.PP
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.BR "%s: No space for output buffer" .
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.I TIFFWriteBufferSetup
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was unable to dynamically allocate space for a data buffer.
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.SH "SEE ALSO"
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.IR libtiff (3TIFF)
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