libvips/ChangeLog

25/1/08 started 7.14.0
- bump all version numbers for new stable
- better CMYK JPEG read (thanks Ole)
- add __str__ to VError in Python (thanks Ole)
- revert the dynamic wrapping for Python :-( next version!
- added VImage::convert2disc (thanks Ole)
- you can now set the jpeg quality factor for tiff pyramids (thanks Joe)
- you can now shrink jpegs during read, see "man im_jpeg2vips"
- added CMYK JPEG write
- optionally use GraphicsMagick (thanks Bob Friesenhahn)
- look for MAGICKCORE_HDRI_SUPPORT (thanks Marcel)
- set icc profiles in tiff pyramids explicitly (thanks Joe)
- add --without-cimg configure option
- add im_maxpos_subpel 
- make im_abs compile without liboil 
- add im_align_bands 
- fix type overflow in complex division 
- fix im_cross_phase and im_addgnoise (Tom)
- updated docs, C++ and python
- header no longer stops on error

12/12/07 started 7.13.3
- added "include <cstring>" to VImage.cc to help gcc 4.3
- started moving the python binding to dynamic wrapping
- added im_wrap(), im_wraptwo(), im_phasecor_fft(), im_cross_phase() (Tom)
- memleak plugged in im_save_string_setf()
- bugfix in and docs for im_gradcor() (Tom)
- use Glib macros to make im_msb work on big-endian platforms (Tom)
- use Glib macros to get rid of needless compile warnings (Tom)
- fix type overflow in im_c2ps/im_abs (Tom)

31/10/07 started 7.13.2
- build cimg on windows fixes
- various include cleanups, updated man pages
- break im_wbuffer() out to a separate API
- use im_wbuffer() to make im_vips2jpeg() compress in the background
- also im_vips2png(), im_vips2tiff(), im_vips2ppm()
- revised evaluation progress system
- new evalstart/evalend/preclose callbacks fix over/underflow reporting
- but the meaning of evalend has changed in a non-backwards-compatible way :(
  use preclose instead ito get the old behaviour
- added "--vips-progress" flag to turn on a simple eval progress tracker
- make im_spcor[12] static, im_spcor is wrapper (Tom)

28/9/07 started 7.13.1
- vips2dj can print RGB images
- oop, include <stdexcept> missing
- add protos for generate/iterate function args, fix warnings
- add cimg package, we now have C++ source inside VIPS, sigh
- added OUTPUT_DOUBLEVEC and OUTPUT_INTVEC, use for im_maxpos_vec() and friends

29/8/07 started 7.13.0
- we now have a trunk and the version is 7.13.x, woo!
- move manpages into a separate man/ dir ... speeds up builds a lot on windows
- don't install malkovich
- don't fail on unknown args for python (thanks Simon)

1/8/07 started 7.12.5
- im_embed() is more general ... x and y can be negative
- predicate.c is smaller and cleaner
- libsrcCC link improvement from Pablo
- support 32/64-bit ImageMagick as well (thanks Marcel)
- better im_magick2vips() for Q8 ImageMagick
- split repository to trunk/branches ready for a stable 7.12.x branch

27/7/07 started 7.12.4
- proto.h had vars called small, breaking on win32
- more python fixing, we now have working matricies too

17/7/07 started 7.12.3
- fix to VImage.i for gcc 4.2 (thanks Damir)
- eek, off by 1 for more than 1 band hists
- needed a slightly larger worst-case buffer in im__b64_encode()
- tiny cleanup for make_hI() prevents cond jump on ui in valgrind
- --disable-threads was broken again
- remove .svn dirs from dist
- now passes distcheck again

17/7/07 started 7.12.2
- added im_bandmean()
- added support for TIFFTAG_PREDICTOR (Andrey Kiselev)
- fix TIFFOpen() mode snafu (Andrey Kiselev)

11/5/07 started 7.12.1
- memory.c abort()s with DEBUG
- oops, im_bits_of_fmt() manpage was not being installed
- im_histcum() can do all image types
- updated NEWS
- added im_csv2vips_header() 
- command-line csv read was broken (thanks Tom)
- removed length limit on argument vectors (Tom)
- added IM_PREFIX, configure-time install prefix
- oop, turned off memory.c DEBUG
- fix some bogus gcc 4.1 warnings with im_open_local_array()
- better vips usage message
- oops, IM_ANY missing from im_demand_hint() manpage (thanks Shahid)
- just warn if plugins fail to load in im_init_world()
- expose Vargv and make refblock public rather than private so that 
  subclasses of VImage can add vips-style member operations (thanks Pablo)
- oops, im_initdesc() needed to have bbits set correctly (thanks Shahid)
- make VError derive from std::exception more officially
- woo, got exceptions working in SWIG
- soname version bumped to 12.x.x
- oops, added vector ops to Python
- check for overflow of int in return of strtol in dispatch system (Tom)
- add im_[di]mask_[xy]size to dispatch system (Tom)
- add im_gradcor(), im_grad_[xy] (Tom)

26/3/07 started 7.11.21
- ooo, added %include "std_except.i" & friends to VError.i, VImage.i
- im_init_world() is more lenient about recursive invocation
- im_gbandjoin() falls back to im_copy() for 1 input image
- race condition fixed in im_render.c (thanks Simon)
- bump for 7.12!!!

26/1/07 started 7.11.20
- another fix to im_region_image() (thanks Mikkel)
- tiny speed up to im_rect_includesrect()
- avoid recursive invocation in im_init_world() (thanks Christian)
- fix to extract_prefix (thanks Christian)
- buffer cache is now per thread
- combine buffer unref and ref in a single operation to reduce malloc/free
  cycles
- new internal API for passing regions between threads means we can remove
  buffer locks
- more buffer/region sanity checks, plus a memory barrier
- lock around error buffer changes
- im_vips2mask() was wrong for nx1 m-band images
- liboil back to "test"
- add buffer_cache_list to avoid GHashTable _insert()s
- oop, --vips-concurrency was broken
- renamed (in dispatch layer) im_and/or/eor_const -> im_and/or/eorimageconst 
  for consistency 
- C++ API wraps IMAGEVEC, DOUBLEVEC, INTVEC arguments
- oop, IMAGE % vector<double> was broken

21/12/06 started 7.11.19
- added im_linreg() (Tom)
- various C++ API polishes, plus a bugfix (Dennis Lubert)
- vips.spec split to devel and python too (Dennis Lubert)
- be more explicit about sizeof(magic)
- init magic to native order by default (thanks Dennis)
- Hist becomes im_history_get() 
- new history mechanism is faster, uses much less memory, and removes 
  duplicate lines
- added im_get_option_group()
- added official im_concurrency_set()/_get()()
- don't read bbits from vips files ... set ourselves from bandfmt
- oops add RGB16 and GREY16 to C++ header
- --list packages option to vips.c
- updated docs to 7.12
- oops, im_region_image() snafu was causing a lot of recomputation
- make im_mpercent() suck a little less
- EXIF save was a bit bOrked ... cause of mac crashes?
- im_histgr(), im_heq(), im_hist() all number bands from zero now
- fix stride in liboil calls
- set RGB16 on 16-bit RGB ICC export

29/11/06 started 7.11.18
- added im_buffer_t so regions can share calculated pixels: 2-3x speedup on 
  the benchmark
- im_region_local() -> im_region_buffer()
- im_sharpen() order change to help sharing
- im_invalidate() clears buffer caches
- add sentinel attributes
- add some missing im_demand_hint()s
- paint ops invalidate the output image
- fix nothread eval
- raise threads limit to 1024 (thanks Christian)
- manual redone
- vipsCC python init() hooks 
- add liboil dependency
- use liboil for im_abs(), im_add(), im_divide(), im_floor(), im_multiply(),
  im_subtract(), im_lintra(), im_avg(),im_deviate()
- quiet libtoolize test (thanks Tom)
- im_benchmarkn now regrows image each time
- strip meta from sample2.v ... saves a lot of mem (esp. Hist)
- added im_isscalar() (Tom)
- added IM_REGION_ADDR_TOPLEFT() (Tom)
- reduce size of im_rightshift_size.c to help compile (Tom)
- make im_stop_many(NULL) safe (Tom)

24/11/06 started 7.11.17
- better benchmark script makes graphing easier
- double-buffer image file writes
- reuse write threads
- clean up threadgroup / iterate / generate
- added im_benchmarkn to make it easier to make a CPU-bound op on large
  machines
- im_cache() failed for cpus > 1

1/11/06 started 7.11.16
- moved im__convert_saveable() into im_copy() (thanks Christian)
- missing gobject dependency (thanks Christian)
- --enable-threads was broken (thanks Christian)
- eval without theads was broken (thanks Christian)
- LIBADD libvips.la to libvipsCC.la (thanks Simon)
- benchmark.sh is now plain sh, not bash
- set ORIENTATION_TOPLEFT in im_vips2tiff (thanks Josef)
- oops, im_vips2csv() output separator was broken
- added im_benchmark2
- move XYZ2Lab LUT build outside the eval thread

30/10/06 started 7.11.15
- print leaked windows
- oops, race condition in im_window_unref()
- integrated im_region_window() into im_region_image(), tiny speed up

6/10/06 started 7.11.14
- ifthenelse and affine dhints revised
- buildlut no longer outputs x cods
- configure asks for glib >= 2.6 (we need GOption)
- configure uses AC_TOOL_CHECK to find tool names to help cross-compiling.
- better configure test for libexif
- add </libexif/ prefix if required
- test for glibtoolize during bootstrap to help OS X
- add --version to vips main prog
- don't set Type in im_scale, want to be able to scale hists, for example
- im_vips2mask() allows multiband hists as well
- im_vips2csv() lets you specify an output separator
- vips.c cleanups in arg handling
- removed python binding to C layer, too hard to get it working right
- leak test python test program
- added throw() decls to C++ to help SWIG
- no longer derive VError from std::exception, can't get it to work with SWIG
- added mmap window manager to share windows between regions ... big reduction
  in VM use for large workspaces and for SMP
- add im_spcor2 (with sliding window) (Tom)

15/9/06 started 7.11.12
- python vips wrapper hooks into init to start vips
- oop, python detect was broken again
- im_file_length() error return was wrong (thanks Christian)
- im_csv2vips() isnored last column if there was no trailing
  whitespace/quoting
- test for NULL filename/mode, common if you forget to check argc
  (thanks Bruno)
- im_break_token() returns NULL on trailing whitespace ... helps read_dmask
  work with trailing whitespace on matrix headers
- added im_buildlut(3)
- removed extra im_free() in im_copy() fallback in im_msb()
- added GValue input/output args
- various C++ binding improvements (thanks Dennis): namespace support, 
  VError inherits from std::exception, small fixups
- remove im_msb() warning on fallback to copy for uchar ... not very serious,
  happens a lot in nip2
- added <vips/vips> C++ include ... include in a namespace
- added im_benchmark / SMP benchmark script
- add im_maxpos_avg() and im_point_bilinear() (Tom)
- make im_region_free(NULL) safe (Tom)
- link in manpages for im_contrast_surface (Tom)

8/9/06 started 7.11.11
- add im_norm_dmask()
- removed old code for gradient and lindetect
- internal decls split from proto.h to help SWIG
- test for python and SWIG during configure
- added python dir for the binding
- python binding done!
- oops, --without-python was broken (thanks Tom)
- added python/test
- add im_lu_decomp() im_lu_solve(), rewrite NR type functions in terms of these (Tom)

23/6/06 started 7.11.10
- still more im_affine() rounding/clipping tweaks
- ignore "--" arguments to vips.c
- im_init_world() also sets g_*_prgname() and loads plugins
- add manpage for im_init_world() (oops)
- error_exit() prints prgname
- various cygwin fixes
- fix cache thread assert failure (thanks Joe)
- "header" now uses GOption, slightly different args, will loop over args
- fixed assert() overenthusiasm in im_prepare()
- im_csv2vips() now has separate whitespace / separator tables
- add im_rightshift_size() (Tom)
- add im_maxpos_vec(), im_minpos_vec() (Tom)
- add im_norm_dmask() (Tom)
- make im_free_[di]mask(NULL) safe (Tom)

23/6/06 started 7.11.9
- back on sourceforge CVS again
- require openexr 1.2.2 or greater 
- range check xy on im_insert*() for sanity
- VMask::invertlut decl removed (thanks Jean)
- added \"all\" option to vips.c

17/5/06 started 7.11.8
- debrokened openexr read
- added im_tile_cache()
- added tiled read to im_exr2vips()
- im_tiff2vips() now uses im_tile_cache() rather than its own cache ...
  faster in some cases, less RAM use in some cases, saves 200+ lines
- removed 'broken' read option from im_tiff2vips()
- read/write doubles with g_ascii_strtod() and friends where appropriate
- add a "thread" member to region to help sanity check region ownership
- saner threadgroup fixes a race problem on gcc 4.0.3 / amd64
- added im_vips2csv()
- im_open() now does CSV read/write too
- oops, broke vips main prog for function name in argv1 case

22/4/06 started 7.11.7
- split vips_png.c to im_vips2png.c and im_png2vips.c
- added OpenEXR dependency
- added im_exr2vips(), im_exr2vips_header()
- added im_isexr(), im_open() knows about OpenEXR
- added im_contrast_surface(), im_contrast_surface_raw() (Tom)
- added im_msb(), im_msb_band() (Tom)
- im_scale() sets Type on output
- added RGB16, GREY16 types
- im_*2vips() set these types if appropriate
- configure fixes for mac
- vips main prog uses GOption
- im_icc_* locks around calls to cmsDoTransform() to avoid corruption on SMP
  machines
- add im_prepare_many() (Tom)

10/3/06 started 7.11.6
- typo in manpage and header for im_rect_dup() (Tom)
- don't abort image load if XML read fails
- added im_video_test() ... test video source
- oops, lcms .pc finder was not working
- clipping problem in im_affine() fixed (thanks Clare)
- test for attr support in libmagick
- im_text() returns an error for empty string 
- im_falsecolour() scale reversed
- im_remosaic() could crash on bad mosaics
- configure changes to fix --without-magick, lcms and fftw (but sadly we now
  require .pc files for these libs)
- im_vips2jpeg() automatically converts to 1 or 3 band sRGB uchar for write
- also im_vips2png()
- added im_project()

20/2/06 started 7.11.5
- added im_csv2vips()
- commas in filename options can be escaped with a '\'
- raise tile buffer limit (thanks Ruven)
- im_spcor() and im_fastcor() have prettier borders
- im_fastcor() returns sum of squares of differences, not sum of abs of 
  differences

18/11/05 started 7.11.4
- small win32 fixes, thanks Juan
- added im_flood_blob_copy() ... a temporary hack
- much faster im_histplot()
- read RGBA palette-ized PNG images more robustly (thanks Tom)
- turn on -ms-bitfields automatically for mingw

26/9/05 started 7.11.3
- better error recovery for im_binfile() file too large
- all raw files now use mmap windows, so (eg.) ppm and analyze reads can go
  >2GB
- remove DISABLE_COMPAT ... you now have to define IM_ENABLE_DEPRECATED to get
  broken #defines
- fix to build without exif, thanks Chas
- use native win32 API for seek()/truncate() to work with large files
- use attribute to check printf-style args with gcc
- fix gcc4 warnings
- removed ebuild, since it's in gentoo now
- im_magick2vips() sets meta from attributes (good for dicom)
- im_magick2vips() writes many-frame images as tall thin VIPS images
- im_histcum() was broken for vertical histograms
- im_histnorm() is neater
- simpler and faster inner loop for im_conv() and im_convf() avoids gcc4 bug 
- appendc() was reading past the end of the buffer on MSB machines

13/6/05 started 7.11.2
- im_copy_set() was messed up in 7.11.1
- put into CVS, phew
- fixed a rounding bug in im_affine() ... should no longer get black edges on
  image resize
- if TIFF open fails in im_open(), try going through libmagick
- merge requires all bands == 0 for transparency (used to just check 1st
  band)
- 16 bit LAB TIFF read/write was wrong
- new GType for refstring makes it visible from im_header_map()
- jpeg loader attaches exif data (and human-readable meta fields)
- jpeg saver writes any exif data 
- meta not wiped by im_*incheck() in a "w" image
- meta keeps traverse order
- now require glib >= 2.4
- require libxml-2.0 for meta save and new history mechanism
- no more .desc files, history saved in XML after pixel data
- i/s/d meta fields saved there too
- added base64 encode/decode
- added blob header write
- added a save string type: types which define transforms to and from the
  save format get serialized
- GValue meta API now exposed, since we can serialise anything
- jpeg loader loads ICC profiles
- jpeg saver saves ICC profiles from the VIPS header
- src/header.c knows about meta system
- added im_analyze2vips(), im_grid(), im_raw2vips()
- extract/grid/replicate/zoom were not setting TRANSFORM flag
- better falsecolour LUT
- less stupid + more portable read/write of VIPS header
- better im_updatehist()
- jpeg load sets vips xres/yres from exif, if possible
- jpeg save sets exif xres/yres from vips, if possible
- icc_export and icc_transform  attach profiles and intents to output images
- added im_icc_import_embedded() to import with an embedded profile
- split vips_jpeg.c into two, it was getting too big
- added im_cp_descv(), im_cp_desc_array(), funcs use them
- removed im_append_Hist() from API
- fixed meta copy bug
- better history copy, removed nonsense about 1st line of Hist being special
- tiff read/write now reads/writes ICC profile from meta
- edvips rewritten to remove stupidness, and can now set xml
- header can now print xml extension block
- IM_ prefix for colour temp names

1/6/05 started 7.11
- added im_copy_morph()
- im_region_region() allows Bands and BandFmt to differ, provided
  sizeof( pel ) is the same ... makes im_copy_morph() work
- added im_meta*() functions (MW)
- im_header_*() rewritten for meta 
- added im_header_exists(), im_header_map()
- use pkg-config to find libpng and ImageMagick
- added im_lineset()
- added im_extract_areabands() (JF)
- added im_copy_from() (JF)

15/4/05 started 7.10.12
- im_ifthenelse just evals left/right for region all zero/all one
- also im_blend
- swap g_setenv() back to plain setenv() so we work with glib 2.2

9/4/05 JC started 7.10.11
- docs no longer have broken links
- fixed memleak in im_text()

8/4/05
- one bit tiff read was sometimes reading a byte too far in each scanline

14/1/05 started 7.10.9
- im_filename_split() will now usually work for filenames containing ':'
  characters
- added im_render_fade() for fancier nip2 image repaint
- added "ccittfax4" as a TIFF compression option
- fix all 64-bit compiler warnings
- "," allowed as column separator in mask read
- better at spotting singular matricies
- small im_render() tidies
- glib dependancy reduced to just 2.0, but untested ... helps people building
  on older systems who aren't interested in nip2
- removing leading spaces from IMAGEVEC arguments
- load non-interlaced PNGs more efficiently
- 1 point mosaic functions work on more image types
- better memory allocation debugging info
- local memory on regions can shrink as well as grow
- shut down threadgroups on render if no dirty tiles
- limit number of simultaneous renders
- higher mmap window threshold 
- allow max == -1 for unlimited render cache
- 'priority' marks non-suspendable renders
- im_embed() mode == 4 paints white pels
- im_tiff2vips() was broken with --disable-threads
- oops, im_errormsg() compat macros were GCC only
- larger default tile size and strip height
- tiff write sets PHOTOMETRIC_CIELAB for vips TYPE_LAB images ... so we can 
  write float LAB as well as float RGB (thanks Ruven)
- also 16 bit LAB TIFF write
- im_render() rewritten

20/11/04 started 7.10.8
- im_sharpen() is ~15% faster
- more quoting for MAGICK finder
- im_XYZ2Lab() uses a LUT rather than cbrt(), 5x faster
- --disable-threads removes gthread dependency completely (thanks Simon)
- intercept TIFF warnings as well as errors ... stops occasional libMagick
  exceptions
- add im_init_world() to im_init() as well to help backwards compat (thanks 
  Simon)
- im_icc_present() function description was broken, thanks Jay
- oops, libtool library versioning was wrong, thanks Jay
- can now make TIFF pyramids of any non-complex image type (was uchar and LAB
  only), thanks Ruven
- 1st order mosaic code now works for LABQ too
- build system changes to make "make distcheck" work
- RPM .spec files fixed up and updated by configure (thanks Simon)
- tiny cleanups for vdump
- use g_setenv()/g_getenv()
- tiny improvements to IM_FREE*()
- tiny VImage debug print fixes (thanks Jay)
- swap off_t for gint64 to fix LARGEFILE support on win32
- computation feedback now uses gint64 for number of pels, so we give feedback
  correctly on images with >2**31 pels
- other small fixes for >2**31 pels in an image

10/11/04 started 7.10.7
- im_histnD() was not checking BandFmt (thanks Kirk)
- improvements to threading system speed up non-vips output in some cases
- use cbrt(x) where we can ... 10x faster than pow(x,1.0/3) on win32
- typeo in im_text() when built without PANGOFT2 (thanks Stefan)

1/11/04 styarted 7.10.6
- tiny doc fixes
- scripts now only depend on 'vips' program
- im_open( "r" ) is now lazier ... for non-VIPS formats, we delay read until 
  the first ->generate()
- so im_open_header() now deprecated since im_open("r") is identical
- now looks for fftw3 as well as fftw2 ... slightly faster ffts

19/10/04 started 7.10.5
- fix to light_correct (thanks Jay)
- edvips knows about xoffset/yoffset
- better vips enum<->char conversions

4/10/04 started 7.10.4
- man page fixes (thanks Jay)
- removed last csh scripts (thanks Jay)
- scripts default VIPSHOME to $prefix (thanks Jay)
- doc build system tidies
- im_rank() edge padding was wrong
- im_vips2tiff() can now embed ICC profiles

22/9/04 started 7.10.3
- mildly better im_vips2tiff()
- *, -, +, /, % between two images now work for mixed number of bands
- im_free() was missing a man page
- revised documentation

1/9/04 started 7.10.2
- C++ .pc files were still set for 7.9, grr
- im_insertplace() didn't check compatibility of images (thanks Matt)

27/7/04 started 7.10.1
- set default stack size explicitly to help platforms with a very low default
- 16 bit RGB tiff read was broken (bug introduced in 7.9.5, thanks Haida)
- !pangoft2 was broken, thanks Kenneth
- win32 build fixes

12/7/04 renamed as 7.10.0
- added NOCACHE function flag ... stops nip memoising video & paint ops
- added im_extract_bands() ... takes out many bands from an image
- im_vips2tiff() scanline write speed up for area pipelines

10/6/04 started 7.9.6
- tiny polishing of im_ppm2vips()
- im_blend() can now work on labq
- boolean ops all work on float/complex images (by casting to int)
- im_maplut() was broken for 1 band image + many band lut + >8 bit output
- im_lintra_vec() now handles 1 band image and many band vector to make many
  band image
- oops, im_lintra_vec() was missing a man page
- im_measure() can work on labq
- im_lhisteq() uses new embed mode, _raw() version is one pixel smaller, sets
  Xoffset/Yoffset for new origin scheme
- generalised im_tone_build() to any image type to make im_tone_build_range()

20/5/04 started 7.9.5
- tiff output res can be a single number too 
- added im_text() to make a bitmap from a string with pango
- im_tiff2vips() does 16 bit RGBA
- im_binfile() was broken since 7.9.2 due to im_mapfile() change
- im_ppm2vips() now works for 16 bit images
- added im_copy_swap() ... copies, reversing byte order
- im_resize_linear() was broken for some images, thanks Javi

8/3/04 started 7.9.4
- oops, config.h include missing in a few places
- im_vips2tiff() can now write 1 bit images
- im__find_lr/tboverlap() now exported to nip
- better edge tile handling for tiff read/write (thanks Ruven)
- added extend-pixels-from-edge mode to im_embed()
- im_conv*(), im_rank(), im_stdif(), im_dilate(), im_erode() all use it to
  expand their input, so their output now has guess borders, not black borders
- im_fastcor() now does an im_embed( 1 ) on the output ... the zero borders
  were very annoying before, since you would usually be searching for the
  minimum point
- no change to im_spcor(), since you will usually be searching for the maximum
- better im_render() cache behaviour under heavy loads
- im_affine() revised 
	* clip, resample and transform is now pixel-perfect for all 
	  inputs (I hope) 
	* uses the new embed to make sure there are no black borders 
	  from edge interpolation
	* about 20 - 30% faster
- policy change: Xoffset and Yoffset are now set by all operations to record
  the position of the input origin in the output
- im_replicate() is much faster for some cases
- added tile and mirror flags to im_embed()
- added im_cache() convenience function
- better ETA for image calculation
- im_tiff2vips() now has a "broken" option so it can read tiled tiffs made
  with earlier versions of vips
- on convert float to int format, now does floor() not rint() ... more
  'mathematical'
- added im_rint()
- im_sharpen() now uses a gaussian mask
- im_convsep() more resistant to int overflow problems
- added im_make_xy(), avoids rounding problems with the old float-based thing
- im_profile() now makes vertical images for a vertical profile
- added im_vips2tiff() option to set the resolution in inches not cm (thanks
  Andrey)
- im_binfile() is now exported 

6/2/04 started 7.9.3
- added an im_init_world() to im_open(), to help old progs
- renamed VSemaphore as im_semaphore_t
- started using libtool library versioning
- now uses g_module_*() in place of dlopen()
- now uses pkg-config instead of vips-config (thanks Simon)
- fixes to vips.h for _ADDR() with DEBUG on (thanks Konrad)

10/12/03 started 7.9.2
- patches for freebsd, thanks Lev Serebryakov
- vips2dj knows about my colour laser printer
- added i18n support, glib/gmodule/gthread dependency
- im_error*() API revised to be more i18n friendly
- List type removed, now uses g_slist
- VBuf added, some more utility funcs pushed down from nip
- im_thread stuff removed, now uses g_thread
- im_lock stuff removed, now uses g_mutex
- im_semaphore_t renamed to VSemaphore, not sure this is a good idea
- build with --disable-threads to turn off threaded render 
- #include <vips/vips.h> now pulls in most of the public API, you shouldn't
  need other vips includes very often
- im_close() is better at cleaning up if there's an error
- inverse FFTs could fail for wider-than-high images with fftw
- better im_icc_transform error messages
- bug fix in im_render with large caches
- im_binfile() now has an offset parameter
- im_mapfile()/im_unmapfile() now work on IMAGE and record the length of the
  file they mapped ... this lets VIPS successfully unmap a file if it changes
  size while it's open

20/10/03 started 7.9.1
- threadgroups now have their own kill flag
- im_plotmask() now does anti-aliasing
- im_iterate() fix for operations on mmap window images (thanks Clare)
- im_writeline() stops on kill
- fix for im_fwfft() segv for wider-than-high real images (thanks Andrey)
- fix for im_fwfft() to work for non-square real images (thanks Andrey)
- can now read and write 32-bit IEEE float TIFF (Andrey Kiselev)
- clean-ups for colour.c (Andrey Kiselev)
- no longer lets you make an image with width|height|bands == 0 (thanks Joe)
- im_vips2tiff(), im_vips2*jpeg*(), im_vips2png(), im_vips2ppm() could
  sometimes fail for mmap window input images (thanks David)
- added IM_RECT_HCENTRE(), IM_RECT_VCENTRE() macros

20/8/03 JC
- started 7.9.0
- added im_rank_image() ... im_maxvalue() a special case of this
- im_subtract() goes up to int earlier for better value preserving, thanks
  Haida
- im_rank() much faster for large windows, correct result on all platforms 
  (dratted memcpy() was causing problems before)
- fixed problem with libMagick config if installed somewhere strange
- fixed problem with include order in library compile 
- added --without-magick configure option
- added im_render(), threaded background image paint
- added im_replicate(), replicate an image horizontally and vertically

31/5/03 JC
- started 7.8.11
- fixed a problem with relational operators and some combinations of input
  types (bug introduced in 7.8.9), thanks Haida
- vips-7.8 script overrides VIPSHOME environment variable
- better im_guess_prefix
- stupid light_correct script no longer uses /pics/tmp
- added batch_crop script

22/5/03 
- started 7.8.10
- the JPEG writer can embed ICC profiles in output images ... although I've
  yet to see it make any difference :-( test this carefully at some point
- fixed a possible coredumper in jpeg write
- jpeg read now spots truncated files
- im_invertlut() now makes an image, not a mask ... sorry :-( 
- im_histnD() makes an n-dimensional histogram from an n-band image
- im_col_pythagoras() patch
- IM_NUMBER() now returns int not size_t
- new win32 build system from Juan and friends, based on tmake
- sample project files for MSVC added, thanks Juan
- win32/ subdir now has the win32 build systems
- spec/ subdir now has the spec files for building RPMs
- dist now includes formatted documentation
- license change: VIPS is now LGPL, nip stays GPL ... this means proprietary
  programs can link against the vips library 
- had a report of a working VIPS build on a 64 bit system (!)
- im_log_dmask() now includes all of the negative lobe, thanks matt
- vips-7.8 start script now auto-relocates
- im_spcor_raw(), im_fastcor_raw() now exported

29/4/03
- started 7.8.9
- changes to build to help MSVC 
- oops, makedef.pl missed out function names with an initial cap, and
  error_exit()
- im_min() and im_max() gave random wrong results for >1 thread on >1 CPU
  machines (bug introduced in 7.7.20), thanks Joe
- vips.c no longer generates C++ wrappers for functions with no image argument
  (thanks Haida)
- im_invertlut() now wrapped by hand in VMask.cc
- C++ docs updated
- added im_open_header(), returns an IMAGE with just width/height/etc and no
  data
- ... so now "header" will print useful stuff even on truncated files
- tiff writer knows about alpha (thanks Jenny)

7/2/03 
- started 7.8.8
- build failed with lcms turned off
- im_spcor() could segv for 16bit images (thanks Joe)
- im_tiff2vips() read resolution expressed as pixels/cm incorrectly
- im_vips2tiff() tries not to write mad resolutions
- header and im_open file type tests reordered for slight speedup
- im_copy_set() had a broken dispatch function for xres/yres
- im_fwfft() exploits libfftw real -> complex transform if possible for a 2x
  speed-up (thanks Matt)
- im_invfftr() added for complex -> real inverse transform for 2x speed-up
  (thanks Matt)
- im_freqflt() now uses im_invfftr() for real result and speedup
- im_flipver() could segv on some inputs, thanks Clare
- relational operators now work on complex
- relational rewritten ... now fractionally slower, but 1/3 the size
- vips2dj -1:1 produced incorrect height
- better overlap-too-small detection in mosaicing code
- im_system() can have NULL output
- global balance ignores overlaps with only transparent pixels

3/1/03
- started 7.8.7
- worked in patch from Hans Breuer (thanks!)
	- png read/write with im_png2vips(), im_png2vips_header(), 
	  im_vips2png(), im_ispng()
	- im_errorstring() and im_col_displays() are now functions not externs
	  (helps DLLs)
	- many include fixes to help native win32 build
- added libMagick support, 78 file formats now loadable with
  im_magick2vips(), im_magick2vips_header() and im_ismagick(), w00t
- now installs vips.m4 to $prefix/share/aclocal
- added im_icc_export_depth() ... export to device space with a specified bit
  depth (8 or 16)
- vips.def now rebuilt with custom rule in libsrc/Makefile.am
- removed externs im_Type, im_BandFmt, im_Coding, im_Compression to simplify
  DLL build
- im_mmap() -> im__mmap(), since it's supposed to be an internal function
- new vips-7.8.x/proj directory holds unsupported sample makefiles and 
  config.h for building with the MSC toolchain 
- new scripts batch_image_convert and batch_rubber_sheet (thanks Joe)
- added the RPM .spec files to the main distribution
- InitializeMagic() now passed "" rather than NULL to avoid assert() problems 
  on some libMagic versions

2/12/02
- started 7.8.6
- now reads 8-bit RGBA tiff
- C++ build guide fixes (thanks fsicre)
- im_Type2char array text slightly messed up
- global_balance is safer for complex mixed mosaics
- removed im_lintra() fallback to im_copy() for scale == 1, offset == 0 ...
  too confusing
- im_tiff2vips() now reads 16-bit LAB
- added im_Lab2LabS() and im_LabS2Lab()

5/11/02
- started 7.8.5
- fix for mmap window of local region ... caused im_iterate() to break
  sometimes for large images, in turn occasionally breaking 
  im_max()/im_min()/etc. (thanks Joe)
- tiny speed up for im_rot90()/270()
- on install on win32, add .exe suffix for links
- vips.c knows to remove .exe suffix for linked commands
- added im_errormsg_system() ... decode win32 error codes too
- pagesize calcs for roving mmap windows were messed up on win32 (thanks Kirk)
- some TODO cleanups
- global balance broke horribly if you had filenames with spaces in (thanks
  Clare)

31/10/02
- started 7.8.4
- im_unmapfile() includes mixed up on mac os x
- libtool patched for mac os x
- vips.c sets numeric locale to "C"

27/10/02
- started 7.8.3
- configure fixes help mac os x
- im_guess_prefix() adds ".exe" suffix on w32 if not there
- changed im_measure() error messages to number bands from 1
- added func descriptor for im_read_dmask() to help nip, updated C++ API, docs

21/10/02 JC
- started 7.8.2
- tries rand() if random() is not available
- tries mktemp() if mkstemp() is not available
- turns off realpath() if not available
- added IM_DIR_SEP/IM_DIR_SEP_STR directory separator character/string
- added IM_PATH_SEP/IM_PATH_SEP_STR path separator character/string
- added im_path_is_absolute()
- vips.c knows to link to vips.exe on win32
- spot mingw* and set BINARY_OPEN
- open images in binary too (since we now read() the header)

10/10/02 JC
- im_lintra() and im_lintra_vec() were broken for complex images :-( thanks
  matt
- renamed im_and() as im_andimage(), im_eor() as im_eorimage() and im_or() as
  im_orimage() ... avoids breakage in the C++ layer
- added im_dE00_fromLab()
- limited release as vips-7.8.0

2/10/02
- renamed as vips-7.8, woohoo
- revised documentation

19/9/02 JC
- started sorting out VIPS #defines ... there are now a sensible set of new
  names (eg. NOCODING becomes IM_CODING_NONE, LAB becomes IM_TYPE_LAB)
- define IM_NO_VIPS7_COMPAT to turn off the old names
- added im_mmap()/im_munmap() layer for windows portability
- removed the contents of history.h .. obsolete
- added IM_IMAGE_ADDR() macro

10/9/02 JC
- handle errors from TIFF lib correctly
- configure fixes for cygwin
- CMYK TIFF write fixed
- configure fixes for mingw

5/9/02 JC
- im_cp_desc() now copies Xoffset/Yoffset

21/8/02 JC
- started 7.7.24
- reads CMYK TIFF
- reads dpi from TIFFs
- better float Xres/Yres

14/8/02 JC
- new header fields Xoffset and Yoffset ... used by functions to hint 
  the position of the origin in output images
- support added to c++ api and to header
- im__lrmerge(), im__tbmerge(), im__affine(), im_insert(),
  set Xoffset/Yoffset
- now uses <lcms.h>, not <lcms/lcms.h> for better suse w0rkage
- better configure for fftw (uses libdfftw name if libfftw not found)

8/8/02 JC
- large file support with mmap() windows ... had to change 
  im_prepare_inplace() to im_prepare_to()

  benchmark:

  - system

	hardware: 2 x 2.5GHz P4, 1GB RAM, 15k SCSI, ReiserFS
	os: suse 8 (kernel 2.4.18)
	compiler: gcc 2.95.3, -O2, threads turned on
	images: fred.v, fred2.v; both 4k by 4k LABPACK (64MB)
	images: jim.v, jim2.v; both 15k by 15k LABPACK (900MB)
	time: smallest real of 5 runs, system idle
	vips: 7.7.23, debug on in im_openin.c, window limit set with an
	  environment variable

  - benchmarks

	cpu-bound: im_sharpen fred.v fred3.v 11 1.5 20 50 1 2
	io-bound: im_insert fred.v fred2.v fred3.v 4000 0
	worst-case: im_rot90 fred.v fred3.v 

  - results

	desktop:

			no mmap windows		mmap windows
	
	cpu-bound	real    0m3.712s	real    0m3.970s
			user    0m6.010s	user    0m6.390s
			sys     0m0.900s 	sys     0m1.110s

	io-bound	real    0m1.813s	real    0m1.865s
			user    0m0.900s	user    0m0.990s
			sys     0m1.720s 	sys     0m1.520s

	worst-case	real    0m1.344s	real    0m3.039s
			user    0m1.270s	user    0m2.230s
			sys     0m0.850s	sys     0m3.050s

  not quite sure why sharpen is a little slower (4%?) ... IO speed is about
  the same though ... worst-case is having to constantly move windows about
  (500,000 page faults, vs 10,000 for no windows)

  again, with an image larger than RAM 

  			no mmap windows		mmap windows

	io-bound 	real    2m52.759s	real    2m11.172s
			user    0m14.940s	user    0m14.890s
			sys     0m29.940s	sys     0m26.560s

	worst-case	real    3m35.391s	real    3m50.760s
			user    0m19.850s	user    0m26.600s
			sys     0m12.650s 	sys     0m43.130s

  mmap windows actually slightly faster in this case ... plus they stress the
  OS less

31/7/02 JC
- added -lm for better lcms detect
- README notes for fftw on suse8
- im_profile() sets HISTOGRAM for output image
- im_copy()/im_copy_set() function descriptor no longer sets PTOP ... helps 
  avoid LUT problems
- im_subsample()/im_zoom() fall back to im_copy() for shrink/grow == 1
- im_lintra() falls back to im_copy() for scale == 1, offset == 0
- no longer use Type == LUT ... all just Type == HISTOGRAM now
- im_blend() was messed up for > 1 band images :(

16/7/02 JC
- started 7.7.23
- im_XYZ2sRGB() wasn't setting Type = sRGB
- im_icc_import() was broken for rgb
- im_header_string() had wrong return type in function database

13/7/02 JC
- added im_flood_blob() 
- added im_open_local_array() ... C API convenience function
- oop, im_flood() was missing a man page
- Type == FOURIER added to help visualisation
- released as 7.7.22

30/6/02 JC
- JPEG, TIFF and PPM import all now set sRGB Type for RGB import
- im_header_int(), im_header_double() and im_header_string() added to aid
  UIs
- now uses gettimeofday(), not time()
- for consistency with other trig functions, im_c2amph() now returns degrees 
  not radians (ouch)
- added im_c2rect() ... turn (amp, phase) to rectangular
- added im_sign() ... unit vector in direction of value
- better im_scaleps() ... old code was terrible
- rewritten im_rotquad() ... now partial
- im_icc_export()/_import() now do ABSOLUTE correctly
- added im_icc_ac2rc() ... converts absolute to relative colorimetry 

25/6/02 JC
- added im_copy_set(3) ... like im_copy(), but set informational header fields

20/6/02 JC
- added im_ceil(), im_floor()
- im_Lab2LabQ was not clipping a/b range correctly
- im_icc_export(), own ABSOLUTE mode
- released as 7.7.21

28/5/02 JC
- im_remainderconst_vec broken for float/double
- added Yxy colourspace

16/05/02 JC
- auug, libtool was all messed up ... redone all the autotools stuff 
- uses libtool convenience libraries to build vips in sections
- uses config subdir for temp files and .m4 things
- patched stupid suse config.guess
- vips2dj patched for better raw cmyk
- released as 7.7.20

12/5/02 JC
- im_vips2jpeg*() and im_vips2ppm() now both partial
- started updating the C++ guide
- had to change the location of the C++ headers :-( all C++ progs should now
  have:

	#include <vips/vipscpp.h>

  this is so things can work on systems which do not have case sensitive
  file systems
 
- changes for Mac OS X 
  * im_system() TRUE/FALSE removed
  * searches /*/[lib|include] to get fink libs for tiff and jpeg

30/4/02 JC
- several functions were missing IM_FN_PIO in their descriptor ... this was
  harmless for nip/ip/C, but broke the ref counting in the C++ layer 
- im_system() now defaults "/tmp" for temp files
- STRING input and output args were broken for C++ :-(
- threads exit more quickly on error
- im_min()/im_max() now partial (at last)
- im_remainderconst()/im_remainderconst_vec() added
- --with-dmalloc configure switch
- vips2dj does CMYK and mono too
- im_vips2tiff() allows any number of bands (but not the right way to
  write CMYK, see TODO)

26/4/02 JC
- old ICC profile reader removed
- little cms wrapped ... configure spots it, im_icc_transform() uses it to map
  between two images
- also im_icc_import() and im_icc_export() so you can see PCS images
- im_icc_present() to test for existence of lib
- README fixes

4/4/02 JC
- TODO changes
- oops, DEBUG left on in im_invertlut()

2/4/02 JC
- im_fwfft.c/im_invfft.c now use libfftw if available ... about 5x speed up
  and double precision
- added FIND_FFTW autoconf macro
- include/vips/proto.h changes

26/3/02 JC
- started 7.7.19

25/3/02 JC
- im_log_dmask() was broken (thanks matt)
- casts between VDMask and VIMask were broken (thanks matt)
- various error msgs improvements and tiny man page fixes

13/3/02 JC
- tb/lr merge first/last cache moved to per-call state for better sharing
- im_remosaic() bails out faster on error and makes better error messages

13/3/02 ruven
- im_vips2tiff() pyramids stop at tilesize, not 64x64

25/02/02 JC
- im_remosaic() is smarter, and works better with im_global_balance()
- im_affine() 2x faster

14/2/02 JC
- started 7.7.18
- vips.m4 and libsrc/Makefile.am fixes for IRIX

11/02/02 JC
- vips/thread.h and vips/threadgroup.h were missing extern "C" for C++ 
- VImage::write() now tracks dependencies, so you can write() to a partial
  safely ... although it's not a very useful thing to do (thanks Mike)
- new VImage::print() function for debugging
- added im_print()

22/01/02 JC
- started 7.7.17

15/01/02 JC
- im_rect_unionrect() and im_rect_intersectrect() safer for repeated args
- im_video_v4l() no longer perrror()s on ioctl fail for less spam

03/01/02 JC
- started 7.7.16
- im_version_string() really does return the date as well now

12/12/01 JC
- im_guess_prefix() extra smartness for relative path names
- VImage() no longer uses tmpnam() (thanks Paul)

11/12/01 JC
- renamed im_fexists() as im_existsf()

7/12/01 JC
- ppm man pages added (doh)

28/11/01 JC
- warnings on g++ 2.96 fixed

22/11/01 JC
- started 7.7.15
- im_video_v4l() failed to compile on non-linux platforms

7/11/01 JC
- im_remosaic() added
- im_*merge() are more intelligent about transparency in bizarre overlaps
- grr! putenv() semantics change on more recent clibs ... should be safer
  now

19/10/01 JC
- VDisplay( "display name" ) segved on unknown display :-( thanks mike

26/9/01 JC
- contrib tools get data files from share/vips/xxx area now
- im_vipshome() renamed as im_guess_prefix(), reworked for new package layout
- doc/ build sorted out
- ... but of course, docs still need updating for 7.8

20/9/01 JC
- fix to im_vipshome()
- ip2 renamed as nip
- split to library only ... separate ip and nip packages
- new VIPS_VERSION_* macros set from configure.in in vips/version.h.in
- vips.m4 VIPS finder
- reworked README, doc/README and TODO
- now installs to /usr/local/ by default
- fmask4th.c was including varargs.h ... d'oh
- include area reorganised: everything inside <vips/..> now ... hopefully the
  only user-visible change is that all plain C progs need to change:
  	
	#include <vips.h>

  to:

	#include <vips/vips.h>

  the C++ API should be unaltered

21/8/01 ruven
- im_setupout() was missing some #includes

20/8/01 JC
- started 7.7.14

15/8/01 JC
- added libxml dependency for ip2

27/7/01 JC
- im_conv(), im_convf(), im_convsep(), im_convsepf() now reject masks with 
  scale == 0

26/7/01 JC
- started 7.7.12

25/7/01 JC
- started 7.7.11
- oop, im_histeq() and im_tonemap() also missed
- better error messages from im_run_command()

23/7/01 JC
- started 7.7.10
- im_sharpen() failed due to change in im_band_extract() offset

20/7/01 JC
- started 7.7.9

4/7/01 JC
- im_open(,"w") open() delayed until im_setupout(), very slightly safer
- updated im_open() man page
- im_tiff2vips() now embeds index in filename ... and it's page number (from
  0), not subsample factor
- finally bit the bullet ... im_extract()/im_extract_band() now number from 
  zero (sorry!)
- and im_lrmosaic()/im_tbmosaic() bandno param too

29/6/01 JC
- im_region_free() now frees immediately

27/6/01 JC
- im_vips2tiff() man page updated for deflate, 2 years late

22/6/01 JC
- oops, limit wrong on im_rank()

21/6/01 JC
- better post_install for --prefix outside VIPS's tree
- -ltiff needs -lm in acinclude.m4 ... fixes configure on redhat 7.x

13/6/01 JC
- started 7.7.8

6/6/01 JC
- im_invertlut() added 

31/5/01 JC
- im_colour_temperature, im_XYZ2Lab_temp, im_Lab2XYZ_temp added
- ... colour temp stuff needs sorting out properly

25/5/01 JC
- added vips-config script, cf. gtk-config
- --without-threads option added
- did a bit of work on the C++ API docs

24/5/01 JC
- added im_tiff2vips_header(), im_jpeg2vips_header() and im_ppm2vips_header()
- header uses these to print fields quickly
- switched to config.h
- configure.in rewritten ... much nicer, fewer options, more automatic

17/5/01 JC
- im_matinv() didn't free stuff correctly on singular matrix

16/5/01 JC
- vips2dj now knows about 5000ps printers
- allow RW mode for non-native VIPS image files, for 8 bit images

2/5/01 JC
- started 7.7.7

1/5/01 JC
- im_addgnoise() did not work for >1 band images

23/4/01 JC
- configure options to remove support for JPEG and TIFF ... helpful for a no-
  dependencies build

20/4/01 JC
- im_(v)snprintf() added
- all sprintf()s removed

15/4/01 JC
- im_affine() had a rounding problem

11/4/01 JC
- tiny mosaicing bug fixed in im__lrcalcon
- started 7.7.6

21/3/01 JC
- new iblend code in im_tbmerge() was typo-d 
- mosaic1 was broken by affine too

20/3/01 JC
- im_image() failed for FMTUCHAR

12/3/01 JC
- started 7.7.5
- im_sharpen() uses seperable convolution for big speed up
- new "Print" menu

11/3/01 JC
- REALVEC renamed as DOUBLEVEC
- added IMAGEVEC
- added IM_INPUT_IMAGEVEC
- gbandjoin now has function description
- new function im_maxvalue()
- im_compass()/im_lindetect() reimplemented with im_conv()/im_maxvalue(), 
  about 15% faster, works for any type, partial
- im_gradient() reimplemented with im_conv()/im_abs()/im_add(), about 30%
  slower, works for any type, partial

10/3/01 JC
- new function, im_clip2fmt() converts between any image formats ...
  slightly faster than the old im_clip()
- legacy im_clip2us() etc. functions now just call this

9/3/01 JC
- im_conv() rewritten, simpler, about 10% faster
- im_convsep() rewritten, now does any non-complex type, partial, 20% faster
- new functions: im_convf(), im_convsepf() for DOUBLEMASK
- raw versions of each
- legacy convolvers (eg. im_convbi()) removed

8/3/01 JC
- new function im_blend()
- new function im_lab_morph()
- speed up to im_ifthenelse()
- speed up to im_*merge() (uses integer arithmetic for integer blends)

4/3/01 JC
- tiny speed ups to im_histgr() 
- speed ups to im_maplut() 

3/3/01 JC
- new functions: im_histnorm(), im_histcum()
- im_histeq() more general
- im_vipshome() --- better behaviour for relative paths

2/3/01 JC
- new video package
- im_video_v4l1() (video for linux) added
- configure.in switches to turn v4l1 on and off

1/3/01 JC
- new im_histspec() implementation ... more general, bugs removed

14/2/01 JC
- better vips2dj usage message

13/2/01 JC
- im_image_sanity() added, called in various places in iofuncs

9/2/01 JC
- added 'check' and 'name' class member stuff to ip from ip_gtk2
- new "Plot" menu
- new "Overlay" menu
- more stuff in _stdenv/_list ... curried forms of head/tail etc.

7/2/01 JC
- started 7.7.4
- vips2dj and vdump now use im_vipshome()

5/2/01 JC
- new im_vipshome() function
- min()/max() macros renamed as MIN()/MAX()
- new im_load_plugins() function
- vips.exe and ip now load $VIPSHOME/lib plugins at startup

2/2/01 JC
- mosaicing functions now have an extra max blend width parameter

30/1/01 JC
- fixed tbmerge no overlap detect

13/12/00 JC
- started 7.7.3

30/12/00 JC
- vips.h fixes for cygwin/wingdi conflict

27/11/00 JC
- added im_vips2ppm(), im_open() imports and exports it
- fixed nasty implicit output conversion problem for PIO dispatch() calls

21/11/00 JC
- added im_ppm2vips()

16/11/00 JC
- configure.in fixes ... jpeg found correctly now
- searches for libz as well

16/11/00 JC
- started 7.7.2

5/11/00 JC
- speed up to lab2labq

19/10/00 JC
- started 7.7.1

13/1/00 JC
- oops, im_open() was missing an 'else' in jpeg/tiff load

5/8/00 JC
- im_vips2tiff() now has mode string embedded in output filename
- im_vips2jpeg() now has qfac in output filename
- im_open() understands this

11/7/00 JC
- new im_image() function ... wraps a VIPS image around a memory buffer
- C++ layer changes:
	* now use #include <vips/Vips.h>
	* error renamed as VError
	* new VMask() constructors
	* new VImage() constructor
	* new VImage::data() access member
	* more operator equivalences: <, >, <=, >=, ==, !=, &, |, ^, %

17/6/00 JC
- more consts added to vips protos

10/5/00 JC
- minor configure.in changes to help solaris
- removed _TIFFmalloc() and _TIFFfree() calls

9/3/00 JC
- fixed rounding problem in generate grid

8/3/00 JC
- fixup to im_system() temp dir

7/3/00 JC
- added im_system()
- small tidies

1/3/00 JC
- better plugin test in configure.in

26/2/00 JC
- fixes to Makefile.am in ip/src* and configure.in, to help ip find the right
  gtk includes on systems with more than one gtk-xxx installed

21/2/00 JC
- now builds ip and ip_gtk2

16/2/00 JC
- configure.in fixes for xil and some TIFF/JPEG strangeness

15/2/00 JC
- im_global_balancef() was broken! d'oh
- note in README about enabling video cards

10/2/00 JC
- configure now searches for xil ... FIND_XIL macro
- im_zoom() spots integer overflow
- better shape set on region drag end in ip
- better zoom-too-far handling in ip

13/1/00 JC
- fixes to configure etc. to help cygwin
- jpeg is now searched for too ... FIND_JPEG macro

10/1/00 JC
- global_balance() now uses new affine() atuff

27/12/99 JC
- mosaic1 stuff now uses new affine() funcs

21/12/99 JC
- added Joe's docs
- im_LabS2LabQ() rounding on a/b slightly broken for a/b == 0

20/12/99 JC
- new function: im_affine()
- similarity*() now in terms of affine()
- tests for error return in reduce.c from maplut
- small clean-ups

15/12/99
- im_version() added, new iofuncs package for it
- ip did not call zero-input-arg vips functions 
- vips.c did not like zero-input-arg functions

6/12/99 JC
- Sobel filter was a bit broken

3/12/99 JC
- menu reorganisation
- generate gauss mask dialog

2/12/99 JC
- reworked text file IO, better error messages

1/12/99 JC
- reworked .iprc filename stuff, cleaner

30/11/99 JC
- better menu set switcher in calc preferences
- ip now thinks it's 7.7
- did a spellcheck on the ip guide

29/11/99 JC
- 7.7 started!
- srgb D65->D50 converter
- Negate added to arith
- find similar pixel value dialog
- find similar colour dialog
- paste into background dialog

19/11/99 JC
- adjust labq was mising
- shrink image defaulted to /2 not /1
- sharpdropshadow broken
- Rotate.* broken
- vips-7.6.3 release

18/11/99 JC
- ip didn't report space free on >2GB filesystems correctly
- ip did not link statically against libXpm on solaris7

17/11/99 JC
- im_histplot() failed for all 0's histogram
- new profile_image dialog
- man pages for im_sRGB2XYZ/im_XYZ2sRGB were broken
- new colourize image dialog
- new shrink image image dialog
- new expand image image dialog
- better doc Makefiles

16/11/99 JC
- more menu reorganising
- new image_to_mask/mask_to_image buttons
- new match_two_images dialog
- new measure_colour_chart dialog

15/11/99 JC
- new custom LABQ sharpen in Image menu
- configure support for SGI video (thanks Ruven)
- menu fiddling in ip
- new "resize canvas" menu item
- im_insert_noexpand() added, no docs tho'

11/11/99 JC
- new ip menu item: Image=>Adjust white/black/saturation of LabQ 
- fixed bug in decompose complex number
- browse-icons now ignores errors
- better error msg for "12 12" etc cases

10/11/99 JC
- open hi-res gives proper error msg if no file found
- made file-select boxes a bit more compact and clearer
- updated configure.in for vips-examples-7.6

9/11/99 JC
- new column start point moved
- vdump now defaults to subsample 1, portrait
- navigation boxes were broken
- no longer shrink-to-fit if loading as high res
- better positioning of zoom windows
- removed some old cruft

8/11/99 JC
- ooops, im_remainder() got lost somehow
- refguide converted to latex and updated 
- cppguide updated

5/11/99 JC
- libguide converted to latex and updated

4/11/99 JC
- ip guide now latex2htmls cleanly ... still needs updating tho'
- cpp/app guide latex2html redone

2/11/99 JC
- configure no longer adds -32 to IRIX builds for you
- some more stuff in README
- simple DEBUGM malloc tracking, made libsrc/iofuncs/memory.c
- changed im_malloc() to return void *
- removed duplicate im_malloc() proto from util.h
- changed all malloc/free to go through im_malloc()/im_free()

23/10/99 JC
- double-click on error image now pops a load browser and an error dialog
- add-new-column no longer scrolls to right edge of workspace
- better scroll-to-bottom on item add
- load ws twice does not cause 'already open' errors
- memorise directory button in fsb

18/10/99 JC
- new FIND_TIFF/FIND_MOTIF macros for acinclude.m4
- new ./configure switches, see ./configure --help
- enabled static libs

8/10/99
- broke action_proc_bop() into smaller functions, stops bad code gen on 
  gcc2.95.1 (and others, prolly)
- restored old Makefiles in doc/src/ipguide
- vips7.6 script renamed as vips-7.6

5/10/99
- replace image was broken
- some menu reorganisation
- 'reload all menus' button

4/10/99
- computed regions in ip were broken
- updated system.iprc defaults
- new menu item: adjust white/black points

2/10/99
- browse icons was broken
- greyscale 16-bit tiled tiff was broken
- extra mutex locks for TIFF*() in im_tiff2vips()

1/10/99
- some automake probs fixed
- squished two ip bugs

30/9/99
- fixed problem with pthreads, now works on suse6.2 as well
- new API stuff for threaded evaluation with im_threadgroup_t
- new public interface provide platform independent threads/locks/semaphores
- no error box if you zoom out too far now

26/9/99
- lr/tb merge blend was not quite right ... should be smoother now
- histplot broken for float images

24/9/99
- better mono->labq converter
- more portable ispoweroftwo detect for freq filter stuff

23/9/99
- better graphics expose handling

17/9/99
- >/< stuff in ip was a bit mixed up
- ink preview fixed for mono images
- help popup fixed

15/9/99
- linedetect and sobel filters for ip, thnx Kirk

14/9/99
- Find_histogram was broken
- im_profile() man pages was broken
- ooops, ip had old set of macros

10/9/99
- im_and/im_or/im_eor now work for any integer type

Summer hols: (2nd half August '99)
- initial heap block larger to avoid start gcs
- def slicer fixed
- larger max heap
- toolkits with initial '_' hidden by default
- custom recomb
- dialog.def removed
- ... other menu fixes
- generate grid menu
- im_remainder() added
- new cursor change code, hglass rotates during comp!
- dialog.c handles cursor changes better
- rubber band in paintbox displays
- mag widget stays on right!
- undo/redo single pixel paint ops
- heap size control from prefs
- cancel for reductions as well as for image calc
- browse stuff reworked, no more .icon.v files
- save stops you overwriting open .v files
- better animate_countdown() handling
- better resize behaviour for bars added to images
- better code generation, bug fixed in state tracking
- auto recover from crash