diff options
Diffstat (limited to 'source/blender/imbuf/intern/dynlibtiff.c')
-rw-r--r-- | source/blender/imbuf/intern/dynlibtiff.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/source/blender/imbuf/intern/dynlibtiff.c b/source/blender/imbuf/intern/dynlibtiff.c new file mode 100644 index 00000000000..aed73d29fcb --- /dev/null +++ b/source/blender/imbuf/intern/dynlibtiff.c @@ -0,0 +1,191 @@ +/** + * Dynamically loaded libtiff support. + * + * This file is automatically generated by the gen_dynlibtiff.py script. + * + * ***** BEGIN GPL/BL DUAL LICENSE BLOCK ***** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. The Blender + * Foundation also sells licenses for use in proprietary software under + * the Blender License. See http://www.blender.org/BL/ for information + * about this. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * Contributor(s): Jonathan Merritt. + * + * ***** END GPL/BL DUAL LICENSE BLOCK ***** + */ + +/** + * To use the dynamic libtiff support, you must initialize the library using: + * libtiff_init() + * This attempts to load libtiff dynamically at runtime. G.have_libtiff will + * be set to indicate whether or not libtiff is available. If libtiff is + * not available, Blender can proceed with no ill effects, provided that + * it does not attempt to use any of the libtiff_ functions. When you're + * finished, close the library with: + * libtiff_exit() + * These functions are both declared in IMB_imbuf.h + * + * The functions provided by dyn_libtiff.h are the same as those in the + * normal static / shared libtiff, except that they are prefixed by the + * string "libtiff_" to indicate that they belong to a dynamically-loaded + * version. + */ +#include "dynlibtiff.h" + +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include "IMB_imbuf.h" +#include "BKE_global.h" +#include "PIL_dynlib.h" + + +/********************* + * LOCAL DEFINITIONS * + *********************/ +PILdynlib *libtiff = NULL; +void libtiff_loadlibtiff(); +void* libtiff_findsymbol(char*); +int libtiff_load_symbols(); + + +/************************** + * LIBRARY INITIALIZATION * + **************************/ + +void libtiff_loadlibtiff() +{ + char filename[1024]; + libtiff = NULL; + + /* Try to find libtiff in a couple of standard places */ + libtiff = PIL_dynlib_open("libtiff.so"); + if (libtiff != NULL) return; + libtiff = PIL_dynlib_open("libtiff.dll"); + if (libtiff != NULL) return; + libtiff = PIL_dynlib_open("/usr/lib/libtiff.so"); + if (libtiff != NULL) return; + /* OSX has version specific library */ + libtiff = PIL_dynlib_open("/usr/lib/libtiff.so.3"); + if (libtiff != NULL) return; + libtiff = PIL_dynlib_open("/usr/local/lib/libtiff.so"); + if (libtiff != NULL) return; + /* For solaris */ + libtiff = PIL_dynlib_open("/usr/openwin/lib/libtiff.so"); + if (libtiff != NULL) return; + snprintf(filename, 1023, "%s", getenv("BF_TIFF_LIB")); + libtiff = PIL_dynlib_open(filename); + if (libtiff != NULL) return; +} + +void *libtiff_findsymbol(char *name) +{ + void *symbol = NULL; + assert(libtiff != NULL); + symbol = PIL_dynlib_find_symbol(libtiff, name); + if (symbol == NULL) { + printf("libtiff_findsymbol: error %s\n", + PIL_dynlib_get_error_as_string(libtiff)); + libtiff = NULL; + G.have_libtiff = (0); + return NULL; + } + return symbol; +} + +void libtiff_init() +{ + if (libtiff != NULL) { + printf("libtiff_init: Attempted to load libtiff twice!\n"); + return; + } + libtiff_loadlibtiff(); + G.have_libtiff = ((libtiff != NULL) && (libtiff_load_symbols())); +} + +void libtiff_exit() +{ + if (libtiff != NULL) { + PIL_dynlib_close(libtiff); + libtiff = NULL; + } +} + + +int libtiff_load_symbols() +{ + /* Attempt to load TIFFClientOpen */ + libtiff_TIFFClientOpen = libtiff_findsymbol("TIFFClientOpen"); + if (libtiff_TIFFClientOpen == NULL) { + return (0); + } + /* Attempt to load TIFFClose */ + libtiff_TIFFClose = libtiff_findsymbol("TIFFClose"); + if (libtiff_TIFFClose == NULL) { + return (0); + } + /* Attempt to load TIFFGetField */ + libtiff_TIFFGetField = libtiff_findsymbol("TIFFGetField"); + if (libtiff_TIFFGetField == NULL) { + return (0); + } + /* Attempt to load TIFFOpen */ + libtiff_TIFFOpen = libtiff_findsymbol("TIFFOpen"); + if (libtiff_TIFFOpen == NULL) { + return (0); + } + /* Attempt to load TIFFReadRGBAImage */ + libtiff_TIFFReadRGBAImage = libtiff_findsymbol("TIFFReadRGBAImage"); + if (libtiff_TIFFReadRGBAImage == NULL) { + return (0); + } + /* Attempt to load TIFFSetField */ + libtiff_TIFFSetField = libtiff_findsymbol("TIFFSetField"); + if (libtiff_TIFFSetField == NULL) { + return (0); + } + /* Attempt to load TIFFWriteEncodedStrip */ + libtiff_TIFFWriteEncodedStrip = libtiff_findsymbol("TIFFWriteEncodedStrip"); + if (libtiff_TIFFWriteEncodedStrip == NULL) { + return (0); + } + /* Attempt to load _TIFFfree */ + libtiff__TIFFfree = libtiff_findsymbol("_TIFFfree"); + if (libtiff__TIFFfree == NULL) { + return (0); + } + /* Attempt to load _TIFFmalloc */ + libtiff__TIFFmalloc = libtiff_findsymbol("_TIFFmalloc"); + if (libtiff__TIFFmalloc == NULL) { + return (0); + } + return (1); +} + + +/******************* + * SYMBOL POINTERS * + *******************/ + +TIFF* (*libtiff_TIFFClientOpen)(const char*, const char*, thandle_t, TIFFReadWriteProc, TIFFReadWriteProc, TIFFSeekProc, TIFFCloseProc, TIFFSizeProc, TIFFMapFileProc, TIFFUnmapFileProc) = NULL; +void (*libtiff_TIFFClose)(TIFF*) = NULL; +int (*libtiff_TIFFGetField)(TIFF*, ttag_t, ...) = NULL; +TIFF* (*libtiff_TIFFOpen)(const char*, const char*) = NULL; +int (*libtiff_TIFFReadRGBAImage)(TIFF*, uint32, uint32, uint32*, int) = NULL; +int (*libtiff_TIFFSetField)(TIFF*, ttag_t, ...) = NULL; +tsize_t (*libtiff_TIFFWriteEncodedStrip)(TIFF*, tstrip_t, tdata_t, tsize_t) = NULL; +void (*libtiff__TIFFfree)(tdata_t) = NULL; +tdata_t (*libtiff__TIFFmalloc)(tsize_t) = NULL; |