Manual Reference Pages - TIFFREADBUFFERSETUP (3)
TIFFReadBufferSetup, TIFFWriteBufferSetup - I/O buffering control routines
int TIFFReadBufferSetup(TIFF *tif, tdata_t buffer, tsize_t size);
int TIFFWriteBufferSetup(TIFF *tif, tdata_t buffer, tsize_t size);
The following routines are provided for client-control of the I/O buffers used
by the library. Applications need never use these routines; they are provided
only for intelligent clients that wish to optimize memory usage and/or
eliminate potential copy operations that can occur when working with images
that have data stored without compression.
TIFFReadBufferSetup sets up the data buffer used to read raw (encoded) data from a file. If the
specified pointer is
NULL (zero), then a buffer of the appropriate size is allocated. Otherwise the
caller must guarantee that the buffer is large enough to hold any individual
strip of raw data.
TIFFReadBufferSetup returns a non-zero value if the setup was successful and zero otherwise.
TIFFWriteBufferSetup sets up the data buffer used to write raw (encoded) data to a file. If the
size is -1 then the buffer size is selected to hold a complete tile or strip, or
at least 8 kilobytes, whichever is greater. If the specified
NULL (zero), then a buffer of the appropriate size is dynamically allocated.
TIFFWriteBufferSetup returns a non-zero value if the setup was successful and zero otherwise.
%s: No space for data buffer at scanline %ld.
TIFFReadBufferSetup was unable to dynamically allocate space for a data buffer.
%s: No space for output buffer.
TIFFWriteBufferSetup was unable to dynamically allocate space for a data buffer.
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