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100 lines
3.6 KiB
Plaintext
100 lines
3.6 KiB
Plaintext
.\" $Id: TIFFstrip.3tiff,v 1.2 2005/11/02 11:07:18 dron Exp $
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.\"
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.\" Copyright (c) 1992-1997 Sam Leffler
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.\" Copyright (c) 1992-1997 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 TIFFSTRIP 3TIFF "October 15, 1995" "libtiff"
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.SH NAME
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TIFFDefaultStripSize, TIFFStripSize, TIFFVStripSize, TIFFRawStripSize,
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TIFFComputeStrip, TIFFNumberOfStrips \- strip-related utility routines
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.SH SYNOPSIS
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.B "#include <tiffio.h>"
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.sp
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.BI "uint32 TIFFDefaultStripSize(TIFF *" tif ", uint32 " estimate ")"
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.br
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.BI "tsize_t TIFFStripSize(TIFF *" tif ")"
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.br
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.BI "tsize_t TIFFVStripSize(TIFF *" tif ", uint32 " nrows ")"
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.br
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.BI "tsize_t TIFFRawStripSize(TIFF *" tif ", tstrip_t " strip ")"
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.br
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.BI "tstrip_t TIFFComputeStrip(TIFF *" tif ", uint32 " row ", tsample_t " sample ")"
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.br
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.BI "tstrip_t TIFFNumberOfStrips(TIFF *" tif ")"
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.SH DESCRIPTION
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.I TIFFDefaultStripSize
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returns the number of rows for a reasonable-sized strip according to the
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current settings of the
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.IR ImageWidth ,
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.IR BitsPerSample ,
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.IR SamplesPerPixel ,
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tags and any compression-specific requirements. If the
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.I estimate
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parameter, if non-zero, then it is taken as an estimate of the desired strip
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size and adjusted according to any compression-specific requirements. The
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value returned by this function is typically used to define the
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.I RowsPerStrip
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tag. In lieu of any unusual requirements
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.I TIFFDefaultStripSize
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tries to create strips that have approximately
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8 kilobytes of uncompressed data.
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.PP
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.IR TIFFStripSize
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returns the equivalent size for a strip of data as it would be returned in a
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call to
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.IR TIFFReadEncodedStrip
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or as it would be expected in a call to
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.IR TIFFWriteEncodedStrip .
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.PP
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.I TIFFVStripSize
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returns the number of bytes in a strip with
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.I nrows
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rows of data.
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.PP
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.I TIFFRawStripSize
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returns the number of bytes in a raw strip (i.e. not decoded).
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.PP
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.IR TIFFComputeStrip
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returns the strip that contains the specified coordinates. A valid strip is
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always returned; out-of-range coordinate values are clamped to the bounds of
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the image. The
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.I row
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parameter is always used in calculating a strip. The
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.I sample
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parameter is used only if data are organized in separate planes (\c
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.IR PlanarConfiguration =2).
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.PP
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.IR TIFFNumberOfStrips
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returns the number of strips in the image.
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.SH DIAGNOSTICS
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None.
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.SH "SEE ALSO"
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.BR TIFFReadEncodedStrip (3TIFF),
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.BR TIFFReadRawStrip (3TIFF),
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.BR TIFFWriteEncodedStrip (3TIFF),
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.BR TIFFWriteRawStrip (3TIFF),
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.BR libtiff (3TIFF),
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.PP
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Libtiff library home page:
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.BR http://www.remotesensing.org/libtiff/
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