--- /dev/null
+#cmakedefine _LARGEFILE_SOURCE
+#cmakedefine _LARGEFILE64_SOURCE
+#cmakedefine _LARGE_FILES
+#cmakedefine _FILE_OFFSET_BITS
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, char **argv)
+{
+ /* Cause a compile-time error if off_t is smaller than 64 bits,
+ * and make sure we have ftello / fseeko.
+ */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+ int off_t_is_large[ (LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1 ];
+ FILE *fp = fopen(argv[0],"r");
+ off_t offset = ftello( fp );
+
+ fseeko( fp, offset, SEEK_CUR );
+ fclose(fp);
+ return 0;
+}
+
--- /dev/null
+# - Define macro to check large file support
+#
+# OPJ_TEST_LARGE_FILES(VARIABLE)
+#
+# VARIABLE will be set to true if off_t is 64 bits, and fseeko/ftello present.
+# This macro will also set defines necessary enable large file support, for instance
+# _LARGE_FILES
+# _LARGEFILE_SOURCE
+# _FILE_OFFSET_BITS 64
+# HAVE_FSEEKO
+#
+# However, it is YOUR job to make sure these defines are set in a CMakedefine so they
+# end up in a config.h file that is included in your source if necessary!
+
+MACRO(OPJ_TEST_LARGE_FILES VARIABLE)
+ IF(NOT DEFINED ${VARIABLE})
+
+ # On most platforms it is probably overkill to first test the flags for 64-bit off_t,
+ # and then separately fseeko. However, in the future we might have 128-bit filesystems
+ # (ZFS), so it might be dangerous to indiscriminately set e.g. _FILE_OFFSET_BITS=64.
+
+ MESSAGE(STATUS "Checking for 64-bit off_t")
+
+ # First check without any special flags
+ TRY_COMPILE(FILE64_OK "${PROJECT_BINARY_DIR}"
+ "${PROJECT_SOURCE_DIR}/CMake/TestFileOffsetBits.c")
+ if(FILE64_OK)
+ MESSAGE(STATUS "Checking for 64-bit off_t - present")
+ endif(FILE64_OK)
+
+ if(NOT FILE64_OK)
+ # Test with _FILE_OFFSET_BITS=64
+ TRY_COMPILE(FILE64_OK "${PROJECT_BINARY_DIR}"
+ "${PROJECT_SOURCE_DIR}/CMake/TestFileOffsetBits.c"
+ COMPILE_DEFINITIONS "-D_FILE_OFFSET_BITS=64" )
+ if(FILE64_OK)
+ MESSAGE(STATUS "Checking for 64-bit off_t - present with _FILE_OFFSET_BITS=64")
+ set(_FILE_OFFSET_BITS 64)
+ endif(FILE64_OK)
+ endif(NOT FILE64_OK)
+
+ if(NOT FILE64_OK)
+ # Test with _LARGE_FILES
+ TRY_COMPILE(FILE64_OK "${PROJECT_BINARY_DIR}"
+ "${PROJECT_SOURCE_DIR}/CMake/TestFileOffsetBits.c"
+ COMPILE_DEFINITIONS "-D_LARGE_FILES" )
+ if(FILE64_OK)
+ MESSAGE(STATUS "Checking for 64-bit off_t - present with _LARGE_FILES")
+ set(_LARGE_FILES 1)
+ endif(FILE64_OK)
+ endif(NOT FILE64_OK)
+
+ if(NOT FILE64_OK)
+ # Test with _LARGEFILE_SOURCE
+ TRY_COMPILE(FILE64_OK "${PROJECT_BINARY_DIR}"
+ "${PROJECT_SOURCE_DIR}/CMake/TestFileOffsetBits.c"
+ COMPILE_DEFINITIONS "-D_LARGEFILE_SOURCE" )
+ if(FILE64_OK)
+ MESSAGE(STATUS "Checking for 64-bit off_t - present with _LARGEFILE_SOURCE")
+ set(_LARGEFILE_SOURCE 1)
+ endif(FILE64_OK)
+ endif(NOT FILE64_OK)
+
+ if(NOT FILE64_OK)
+ # now check for Windows stuff
+ TRY_COMPILE(FILE64_OK "${PROJECT_BINARY_DIR}"
+ "${PROJECT_SOURCE_DIR}/CMake/TestWindowsFSeek.c")
+ if(FILE64_OK)
+ MESSAGE(STATUS "Checking for 64-bit off_t - present with _fseeki64")
+ set(HAVE__FSEEKI64 1)
+ endif(FILE64_OK)
+ endif(NOT FILE64_OK)
+
+ if(NOT FILE64_OK)
+ MESSAGE(STATUS "Checking for 64-bit off_t - not present")
+ else(NOT FILE64_OK)
+
+ # Set the flags we might have determined to be required above
+ configure_file("${PROJECT_SOURCE_DIR}/CMake/TestLargeFiles.c.cmake.in"
+ "${PROJECT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/TestLargeFiles.c")
+
+ MESSAGE(STATUS "Checking for fseeko/ftello")
+ # Test if ftello/fseeko are available
+ TRY_COMPILE(FSEEKO_COMPILE_OK "${PROJECT_BINARY_DIR}"
+ "${PROJECT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/TestLargeFiles.c")
+ if(FSEEKO_COMPILE_OK)
+ MESSAGE(STATUS "Checking for fseeko/ftello - present")
+ endif(FSEEKO_COMPILE_OK)
+
+ if(NOT FSEEKO_COMPILE_OK)
+ # glibc 2.2 neds _LARGEFILE_SOURCE for fseeko (but not 64-bit off_t...)
+ TRY_COMPILE(FSEEKO_COMPILE_OK "${PROJECT_BINARY_DIR}"
+ "${PROJECT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/TestLargeFiles.c"
+ COMPILE_DEFINITIONS "-D_LARGEFILE_SOURCE" )
+ if(FSEEKO_COMPILE_OK)
+ MESSAGE(STATUS "Checking for fseeko/ftello - present with _LARGEFILE_SOURCE")
+ set(_LARGEFILE_SOURCE 1)
+ endif(FSEEKO_COMPILE_OK)
+ endif(NOT FSEEKO_COMPILE_OK)
+
+ endif(NOT FILE64_OK)
+
+ if(FSEEKO_COMPILE_OK)
+ SET(${VARIABLE} 1 CACHE INTERNAL "Result of test for large file support" FORCE)
+ set(HAVE_FSEEKO 1)
+ else(FSEEKO_COMPILE_OK)
+ if (HAVE__FSEEKI64)
+ SET(${VARIABLE} 1 CACHE INTERNAL "Result of test for large file support" FORCE)
+ SET(HAVE__FSEEKI64 1 CACHE INTERNAL "Windows 64-bit fseek" FORCE)
+ else (HAVE__FSEEKI64)
+ MESSAGE(STATUS "Checking for fseeko/ftello - not found")
+ SET(${VARIABLE} 0 CACHE INTERNAL "Result of test for large file support" FORCE)
+ endif (HAVE__FSEEKI64)
+ endif(FSEEKO_COMPILE_OK)
+
+ ENDIF(NOT DEFINED ${VARIABLE})
+ENDMACRO(OPJ_TEST_LARGE_FILES VARIABLE)
+
+
+
#ifndef OPJ_INCLUDES_H
#define OPJ_INCLUDES_H
+/*
+ * This must be included before any system headers,
+ * since they can react to macro defined there
+ */
+#include "opj_config.h"
+
/*
==========================================================
Standard includes used by the library
#include <ctype.h>
#include <assert.h>
+/*
+ Use fseeko() and ftello() if they are available since they use
+ 'off_t' rather than 'long'. It is wrong to use fseeko() and
+ ftello() only on systems with special LFS support since some systems
+ (e.g. FreeBSD) support a 64-bit off_t by default.
+*/
+#if defined(HAVE_FSEEKO)
+# define fseek fseeko
+# define ftell ftello
+#endif
+
+
+#if defined(MSWINDOWS) && !defined(Windows95) && !defined(__BORLANDC__) && \
+ !(defined(_MSC_VER) && _MSC_VER < 1400) && \
+ !(defined(__MINGW32__) && __MSVCRT_VERSION__ < 0x800)
+ /*
+ Windows '95 and Borland C do not support _lseeki64
+ Visual Studio does not support _fseeki64 and _ftelli64 until the 2005 release.
+ Without these interfaces, files over 2GB in size are not supported for Windows.
+ */
+# define OPJ_FSEEK(stream,offset,whence) _fseeki64(stream,/* __int64 */ offset,whence)
+# define OPJ_FSTAT(fildes,stat_buff) _fstati64(fildes,/* struct _stati64 */ stat_buff)
+# define OPJ_FTELL(stream) /* __int64 */ _ftelli64(stream)
+# define OPJ_STAT_STRUCT_T struct _stati64
+# define OPJ_STAT(path,stat_buff) _stati64(path,/* struct _stati64 */ stat_buff)
+#else
+# define OPJ_FSEEK(stream,offset,whence) fseek(stream,offset,whence)
+# define OPJ_FSTAT(fildes,stat_buff) fstat(fildes,stat_buff)
+# define OPJ_FTELL(stream) ftell(stream)
+# define OPJ_STAT_STRUCT_T struct stat
+# define OPJ_STAT(path,stat_buff) stat(path,stat_buff)
+#endif
+
+
/*
==========================================================
OpenJPEG interface