From c0b89ac5bfb90835ef01573267020e42d4fe070c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Sun, 23 Aug 2015 12:17:05 +0200 Subject: Imported Upstream version 1.8.0 --- tiff/libtiff/tif_stream.cxx | 295 -------------------------------------------- 1 file changed, 295 deletions(-) delete mode 100644 tiff/libtiff/tif_stream.cxx (limited to 'tiff/libtiff/tif_stream.cxx') diff --git a/tiff/libtiff/tif_stream.cxx b/tiff/libtiff/tif_stream.cxx deleted file mode 100644 index 2a2351b..0000000 --- a/tiff/libtiff/tif_stream.cxx +++ /dev/null @@ -1,295 +0,0 @@ -/* $Id: tif_stream.cxx,v 1.6.2.1 2009-01-01 00:10:43 bfriesen Exp $ */ - -/* - * Copyright (c) 1988-1996 Sam Leffler - * Copyright (c) 1991-1996 Silicon Graphics, Inc. - * - * Permission to use, copy, modify, distribute, and sell this software and - * its documentation for any purpose is hereby granted without fee, provided - * that (i) the above copyright notices and this permission notice appear in - * all copies of the software and related documentation, and (ii) the names of - * Sam Leffler and Silicon Graphics may not be used in any advertising or - * publicity relating to the software without the specific, prior written - * permission of Sam Leffler and Silicon Graphics. - * - * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, - * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY - * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. - * - * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR - * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, - * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF - * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE - * OF THIS SOFTWARE. - */ - -/* - * TIFF Library UNIX-specific Routines. - */ -#include "tiffiop.h" -#include - -#ifndef __VMS -using namespace std; -#endif - -class tiffis_data -{ - public: - - istream *myIS; - long myStreamStartPos; -}; - -class tiffos_data -{ - public: - - ostream *myOS; - long myStreamStartPos; -}; - -static tsize_t -_tiffosReadProc(thandle_t, tdata_t, tsize_t) -{ - return 0; -} - -static tsize_t -_tiffisReadProc(thandle_t fd, tdata_t buf, tsize_t size) -{ - tiffis_data *data = (tiffis_data *)fd; - - data->myIS->read((char *)buf, (int)size); - - return data->myIS->gcount(); -} - -static tsize_t -_tiffosWriteProc(thandle_t fd, tdata_t buf, tsize_t size) -{ - tiffos_data *data = (tiffos_data *)fd; - ostream *os = data->myOS; - int pos = os->tellp(); - - os->write((const char *)buf, size); - - return ((int)os->tellp()) - pos; -} - -static tsize_t -_tiffisWriteProc(thandle_t, tdata_t, tsize_t) -{ - return 0; -} - -static toff_t -_tiffosSeekProc(thandle_t fd, toff_t off, int whence) -{ - tiffos_data *data = (tiffos_data *)fd; - ostream *os = data->myOS; - - // if the stream has already failed, don't do anything - if( os->fail() ) - return os->tellp(); - - switch(whence) { - case SEEK_SET: - os->seekp(data->myStreamStartPos + off, ios::beg); - break; - case SEEK_CUR: - os->seekp(off, ios::cur); - break; - case SEEK_END: - os->seekp(off, ios::end); - break; - } - - // Attempt to workaround problems with seeking past the end of the - // stream. ofstream doesn't have a problem with this but - // ostrstream/ostringstream does. In that situation, add intermediate - // '\0' characters. - if( os->fail() ) { -#ifdef __VMS - int old_state; -#else - ios::iostate old_state; -#endif - toff_t origin=0; - - old_state = os->rdstate(); - // reset the fail bit or else tellp() won't work below - os->clear(os->rdstate() & ~ios::failbit); - switch( whence ) { - case SEEK_SET: - origin = data->myStreamStartPos; - break; - case SEEK_CUR: - origin = os->tellp(); - break; - case SEEK_END: - os->seekp(0, ios::end); - origin = os->tellp(); - break; - } - // restore original stream state - os->clear(old_state); - - // only do something if desired seek position is valid - if( origin + off > data->myStreamStartPos ) { - toff_t num_fill; - - // clear the fail bit - os->clear(os->rdstate() & ~ios::failbit); - - // extend the stream to the expected size - os->seekp(0, ios::end); - num_fill = origin + off - (toff_t)os->tellp(); - for( toff_t i = 0; i < num_fill; i++ ) - os->put('\0'); - - // retry the seek - os->seekp(origin + off, ios::beg); - } - } - - return os->tellp(); -} - -static toff_t -_tiffisSeekProc(thandle_t fd, toff_t off, int whence) -{ - tiffis_data *data = (tiffis_data *)fd; - - switch(whence) { - case SEEK_SET: - data->myIS->seekg(data->myStreamStartPos + off, ios::beg); - break; - case SEEK_CUR: - data->myIS->seekg(off, ios::cur); - break; - case SEEK_END: - data->myIS->seekg(off, ios::end); - break; - } - - return ((long)data->myIS->tellg()) - data->myStreamStartPos; -} - -static toff_t -_tiffosSizeProc(thandle_t fd) -{ - tiffos_data *data = (tiffos_data *)fd; - ostream *os = data->myOS; - toff_t pos = os->tellp(); - toff_t len; - - os->seekp(0, ios::end); - len = os->tellp(); - os->seekp(pos); - - return len; -} - -static toff_t -_tiffisSizeProc(thandle_t fd) -{ - tiffis_data *data = (tiffis_data *)fd; - int pos = data->myIS->tellg(); - int len; - - data->myIS->seekg(0, ios::end); - len = data->myIS->tellg(); - data->myIS->seekg(pos); - - return len; -} - -static int -_tiffosCloseProc(thandle_t fd) -{ - // Our stream was not allocated by us, so it shouldn't be closed by us. - delete (tiffos_data *)fd; - return 0; -} - -static int -_tiffisCloseProc(thandle_t fd) -{ - // Our stream was not allocated by us, so it shouldn't be closed by us. - delete (tiffis_data *)fd; - return 0; -} - -static int -_tiffDummyMapProc(thandle_t , tdata_t* , toff_t* ) -{ - return (0); -} - -static void -_tiffDummyUnmapProc(thandle_t , tdata_t , toff_t ) -{ -} - -/* - * Open a TIFF file descriptor for read/writing. - */ -static TIFF* -_tiffStreamOpen(const char* name, const char* mode, void *fd) -{ - TIFF* tif; - - if( strchr(mode, 'w') ) { - tiffos_data *data = new tiffos_data; - data->myOS = (ostream *)fd; - data->myStreamStartPos = data->myOS->tellp(); - - // Open for writing. - tif = TIFFClientOpen(name, mode, - (thandle_t) data, - _tiffosReadProc, _tiffosWriteProc, - _tiffosSeekProc, _tiffosCloseProc, - _tiffosSizeProc, - _tiffDummyMapProc, _tiffDummyUnmapProc); - } else { - tiffis_data *data = new tiffis_data; - data->myIS = (istream *)fd; - data->myStreamStartPos = data->myIS->tellg(); - // Open for reading. - tif = TIFFClientOpen(name, mode, - (thandle_t) data, - _tiffisReadProc, _tiffisWriteProc, - _tiffisSeekProc, _tiffisCloseProc, - _tiffisSizeProc, - _tiffDummyMapProc, _tiffDummyUnmapProc); - } - - return (tif); -} - -TIFF* -TIFFStreamOpen(const char* name, ostream *os) -{ - // If os is either a ostrstream or ostringstream, and has no data - // written to it yet, then tellp() will return -1 which will break us. - // We workaround this by writing out a dummy character and - // then seek back to the beginning. - if( !os->fail() && (int)os->tellp() < 0 ) { - *os << '\0'; - os->seekp(0); - } - - // NB: We don't support mapped files with streams so add 'm' - return _tiffStreamOpen(name, "wm", os); -} - -TIFF* -TIFFStreamOpen(const char* name, istream *is) -{ - // NB: We don't support mapped files with streams so add 'm' - return _tiffStreamOpen(name, "rm", is); -} - -/* vim: set ts=8 sts=8 sw=8 noet: */ -- cgit v1.2.3