11/04/2013:
- Several fixes to Kakadu.cc. To force resolution levels to be floor(x/2) rather than the default
ceil(x/2) to match how TIFF resolutions are created. Also modification to force 16 bit
JPEG2000 to unsigned output. And also fix to strip alpha channels from images.
14/03/2013:
- Fix to gamma conversion - thanks Chiara Marmo
- Update to greyscale conversion code
09/03/2013:
- Updated copyright message in header to new Free Software Foundation address.
08/03/2013:
- Added greyscale conversion support via new filter_greyscale transform function.
23/02/2013:
- Gamma correction fixed, minmax commands added, colormap commands added (Chiara Marmo)
30/01/2013:
- Fix to prevent crashing on malformed JPEG2000 files.
11/12/2012:
- Changed FLOAT enum type to FLOATINGPOINT to avoid VC++ compiler error.
- Implemented 16 and 32bit versions of interpolation functions.
10/12/2012:
- Cleanup to 32 bit code
- New command to set dynamically the min and max for 32 bit float
- Addition of rotation function for 90,180,270 degree rotations
- Fixes to autoconf
30/10/2012:
- Autoconf cleanup. Removed unneccesary autoconf files: should now use
autogen.sh script first before ./configure
18/10/2012:
- Fix to imageCache delete in FIF.cc - thanks to Michal Becak.
16/10/2012:
- Added support for TIFF 32 bit integer and float.
- Fixed 16 bit JPEG2000 support.
- Added 1 bit support for TIFF.
- Added gamma support via GAM command.
- Thanks to Chiara Marmo for initial implementation.
09/09/2012:
- TIFF metadata fixes.
25/08/2012:
- Windows compilation fixes by Michal Becak.
13/08/2012:
- Detect JPEG YCbCr encoding in TIFF and request conversion to RGB
by libtiff. Tile _TIFFmalloc() now only occurs in getTile().
16/07/2012:
- Added check to KakaduImage.cc to handle bilevel images.
- Clean up to use only floats and floorf() in Transforms.cc.
14/05/2012:
- Added bilinear interpolation option for CVT resizing. Added
INTERPOLATION parameter to Environment.h, which takes an integer.
0 for fastest nearest neighbour and 1 for bilinear (default).
Current bilinear implementation 2.5x slower than nearest neighbour.
- Additional fix to MAX_LAYERS code.
11/05/2012:
- Modified layer handling to decode all available layers if
MAX_LAYERS parameter is set to -1.
08/05/2012:
- Fix to Mac OSX and FreeBSD compilation of KakaduImage.cc.
07/05/2012:
- Fixed strip height calculation error in CVT.cc
01/05/2012:
- Modified memory handling in JPEGCompressor.cc to better handle
images where the compressed version may be bigger than the
original (for example at very high quality levels).
- Changes to CVT.cc to work with new JPEGCompressor code and removal
of chunked encoding header directive from CVT.cc.
- Fixed bug in CVT when specifying both WID and HEI.
- Fixed compiler warning in IIPResponse.cc.
- Added man page.
- Added missing definition of get_nprocs() function to Kakadu.cc
for Mac OSX and FreeBSD.
20/04/2012:
- Fixed memory overun error in filter_contrast in Transforms.cc.
18/04/2012:
- Major rewrite of CVT code to unify TIFF and JPEG2000 region
export. Region compositing now in TileManager->getRegion with
modified getRegion Kakadu function. Changes also to View class
and ColourTransforms code to enable greater modularity for
image processing to regions. ColourTransforms renamed to
Transforms.
Thanks to The National Library of Wales, who will be using
iipsrv & iipmooviewer to deliver their Historic Newspapers
in 2012.
21/03/2012:
- Fix to TPTImage.c to force RGB conversion for YCbCr compressed
JPEG TIFFs, which is now the default in VIPS. Thanks to John
Cupitt for spotting this.
17/03/2012:
- Changes to View.[h,cc] to make sure getRequestWidth and Height
return correctly rounded values.
12/03/2012:
- Added HTTP Status: 400 Bad Request to error messages.
28/01/2012:
- Fixes to KakaduImage.cc to properly catch exceptions during file
opening and a check for existence during codestream shutdown.
- Also added a check to updateTimeStamp to throw an exception if file
unreadable.
28/08/2011:
- Performance improvement to JPEG2000 16->8 bit downsampling. Now
using integer arithmetic rather than float.
24/08/2011:
- Updates to configure.in, FIF.cc and DeepZoom.cc to check for and
handle missing setenv, unsetenv and log2 functions. Fixes problem
on Solaris 10.
02/08/2011:
- Changed timegm function in FIF.cc to use more cross-platform POSIX
mktime function instead. Fixes compilation error on Solaris.
22/07/2011:
- Added 16bit and CIELAB support for JPEG2000.
- Other minor cleanups.
24/05/2011:
- Fix added to DeepZoom.cc as FreeBSD does not have the log2 function.
Thanks to Andrew Hankinson for spotting this.
23/05/2011:
- Another fix to ensure the max layers variable is correctly used in
Zoomify and DeepZoom output.
15/04/2011: Version 0.9.9 Released
15/04/2011:
- Fix to View.h to properly take into account max layers variable.
14/04/2011:
- Minor logging update to Zoomify.cc.
13/04/2011:
- Updated VC++ project files.
- Minor changes to logging in Main.cc.
- Updated autoconf files.
08/04/2011:
- Change to TileManager.cc to take into account whether a tile is padded
or not when applying a watermark.
06/04/2011:
- Changes to allow compilation on Windows with Visual C++ Express 2010.
New windows subfolder with missing time definitions and VC solution file.
Fixes also include definition of snprintf, log2 and S_ISREG, which are
all missing in Windows. Many thanks to Rob "Bubba" Hines for his help in
porting.
21/03/2011:
- Added extra NULL assignment to Task pointer after catch block to avoid
problems with uninitialized memory being deleted.
- Added SIGINT handler for Ctrl-C interruptions with strsignal() to
display a more meaningful message.
17/03/2011:
- Clean-up of signed/unsigned variables in IIPImage.h and KakaduImage.h.
15/03/2011:
- Added sanity check for requested resolutions and tiles in JTL.cc.
- Fixed problem with edge tiles and watermarking.
- Clean-up of error message in TPTImage.cc.
14/03/2011:
- Fixed problem with standalone mode. Can now bind to an FCGI socket by
running iipsrv on the command line with the argument --bind.
For example: ./iipsrv.fcgi --bind localhost:9000
- Fixed memory problem reported by valgrind with 16bit images.
Now simply use memcpy instead of re-assigning memory blocks. Changes to
JTL.cc, DeepZoom.cc and Zoomify.cc.
- Added extra buffer overhead during JPEG compression.
- Minor fixes to buffer copy code in Writer.h.
- Fixed memory leak in Memcached code - need to explicitly free returned
objects!
01/12/2010:
- Modified Main.cc to not check in Memcached if there has been a
If-Modified-Since parameter sent and to not store 304 or error replies.
Otherwise we risk to send 304 replies to requests from uncached browsers.
25/11/2010:
- Removed final CRLF from JTL, Zoomify and DeepZoom requests, which causes
problems with http pipelining in firefox.
24/11/2010:
- Added extra checks to both TPTImage and KakaduImage for whether the
requested resolution exists.
- Added ability to KakaduImage to downsize resolutions that were not generated
during encoding.
- Added decompressor.finish() to catch block as finish crashes if called after
thread environment shut down.
18/11/2010:
- Fixed problem when clipping when applying watermarks for both 8 and 16 bit images.
15/11/2010:
- Added memcached support via libmemcached. List of servers passed via
MEMCACHED_SERVERS environment variable. Length of time the cache
remains valid set by optional MEMCACHED_TIMEOUT environment variable
(default is 3600 seconds). Storage is at output level, rather than tile
level, so is complementary to internal tile cache.
Thanks to Moravian Library in Brno (Moravska zemska knihovna v Brne,
http://www.mzk.cz/) R&D grant MK00009494301 & Old Maps Online
(http://www.oldmapsonline.org/) from the Ministry of Culture
of the Czech Republic.
06/11/2010:
- Modification to Cache.h to use string::capacity() function instead of length()
to determine space used by string.
31/10/2010:
- Added simple watermarking support via Watermark class. New environment
variables added for the watermark image, the opacity and probability.
Changes mainly to the TileManager and Session class. Watermarking happens
transparently within the TileManager class for all tiles. Thanks to
Moravian Library in Brno (Moravska zemska knihovna v Brne, http://www.mzk.cz/)
R&D grant MK00009494301 & Old Maps Online (http://www.oldmapsonline.org/)
from the Ministry of Culture of the Czech Republic.
15/09/2010:
- Modified IIPImage.cc to enable handling of images with spectral band
indices with mixtures of 3 or 4 digits. For example, H1_pyr_000_090.tif
and H1_pyr_2500_090.tif.
05/03/2010:
- Another fix to JPEGCompressor.cc to fix a crash with very small
tiles with libjpeg-8.
23/02/2010:
- Modified JPEGCompressor.cc to fix compatibility problem with
libjpeg version 8. Simply removed jpeg_write_tables from
InitCompression function.
09/02/2010:
- Fixed memory leak in Zoomify.cc and DeepZoom.cc
11/01/2010:
- JPEG2000 support added via the Kakadu SDK. Added new class
KakaduImage derived from the IIPImage class. JPEG2000 support
added thanks to Moravian Library in Brno (Moravska zemska knihovna
v Brne, http://www.mzk.cz/) R&D grant MK00009494301 & Old Maps Online
(http://www.oldmapsonline.org/) from the Ministry of Culture of
the Czech Republic.
- Fix to string literal warnings in Writer.h
08/01/2010:
- Major changes to the HTTP headers sent by iipsrv. Added
HTTP Server id and Last-Modified timestamps to all server output.
Checks are now made for a If-Modified-Since response and a
304 Not Modified reponse returned if the timestamps match.
This should significantly improve server performance.
04/01/2010:
- Fixed bug in FIF.cc - the file system prefix was not being
initialized for each new image.
- Layers environment variable changed to MAX_LAYERS to represent
the maximum number of layers user is allowed to decode.
03/12/2009: Version 0.9.8 Released
02/12/2009:
- Adding missing include to IIPImage.cc for compilation with
gcc 4.4.1
01/12/2009:
- Added DeepZoom protocol support. Work carried out thanks to
Moravian Library in Brno (Moravska zemska knihovna v Brne,
http://www.mzk.cz/) R&D grant MK00009494301 & Old Maps Online
(http://www.oldmapsonline.org/) from the Ministry of Culture of
the Czech Republic.
29/11/2009:
- Added SPECTRA.cc class for returning spectral reflectance values
from multispectral images.
- Fix to IIPImage.cc to properly count the number of horizontal and
vertical angles (used for multispectral bands).
26/11/2009:
- Fix to View class to take resampling into account when limiting
the CVT output size to the maximum server setting.
17/11/2009:
- Update to Zoomify to fix way it calculates number of zoom levels.
05/11/2009:
- Updated the autoconf, aclocal, automake and libtool scripts to the
latest versions.
04/11/2009:
- Added FILESYSTEM_PREFIX environment variable to allow a fixed prefix to
be applied to all image paths. Embedded NULL bytes of the form %00 and
any "../" are also now stripped out of any path for security reasons.
(Thanks to Willem Hengeveld for suggesting this)
01/11/2009:
- Fixes to View.h and View.cc to set the requested size to the maximum
allowable if not WID or HEI is set for the CVT command. The correct
resolution to use for CVT is now calculated for views smaller than
the smallest available.
30/10/2009:
- Security fixes to Task.cc to make sure while loop is limited to the
expected number of arguments. (Thanks to Willem Hengeveld for pointing
this out).
19/08/2009:
- Minor updates to IIPImage.h and IIPImage.cc. FIF.cc also now tests
for upper/lowercase .tif and .tiff suffixes.
14/08/2009:
- Modification to View.cc and CVT.cc to calculate the appropriate
resolution as the smallest resolution with a dimension greater size
than the requested dimensions. The WID and HEI directives now
effectively give bounding dimensions.
11/08/2009:
- Added simple nearest neighbour resampling to CVT command to allow it to
resize to the exact dimensions and not just the nearest available pyramid
resolution.
- CVT Content-disposition tag now gives the image filename allowing the user
to save the image directly with this.
01/07/2009:
- Added quality layer parameter to images for future use with file formats
such as JPEG2000 that support this. This allows the decoding of several
quality layers via the LYR command. Modifications to the RawTile API
as well as IIPImage::getTile resulting in a series of changes to
CVT.cc, JTL.CC, TIL.cc, TPTImage.cc, View.h, Main.cc and Environment.h.
New startup configuration "LAYERS" to set the default number of layers.
Default is 1 otherwise.
22/06/2009:
- Changes to Zoomify.cc to take into account the fact that Zoomify expects
a fixed number of resolution levels.
15/04/2009:
- Added a flag for padded tiles into RawTile.h. TIFF's are padded out
to the tile size, but other formats may not be. Changes to TPTImage,
TileManager and CVT to handle this.
- Also changed the RawTile flag for memory managed tiles.
18/03/2009:
- Added modification timestamps to the IIPImage and Rawtile classes.
The TileManager now checks whether the tile is fresh and reloads it
if necessary.
11/03/2009:
- Several changes to JTL.cc and Cache.h to eliminate a memory leak. Also
replaced malloc/free in Rawtile with new/delete.
04/03/2009:
- Minor changes to IIPResponse.cc to elimate type warnings.
06/06/2008:
- Modifed the way the image dimensions are stored in the IIPImage class.
Rather than simply storing the max size, a vector of available dimensions
is saved making it easier to get the size for a given resolution.
05/06/2008:
- Added Zoomify support via the Zoomify=/path.tif request. Works with both
the official flash client and the Zoomify patched OpenLayers javascript
client. Work carried out thanks to R&D grant DC08P02OUK006 - Old Maps
Online (www.oldmapsonline.org) from Ministry of Culture of the Czech Republic.
09/08/2007:
- Added a Bits-per-channel OBJ request so that viewers can determine whether
to perform contrast adjustment server-side or client-side.
07/08/2007:
- Added CIELAB conversion and contrast handling to JTL so that it can handle
16 bit images.
12/06/2007:
- Updated URL decoding function in FIF.cc to C++ style and avoid a potential
buffer overflow.
- Changed Task::run arguments to be const std::string& instead of just std::string.
08/06/2007:
- Changed JTL headers to enable HTTP 1.1 compatible cache control.
13/12/2006: Version 0.9.7 Released
07/11/2006:
- Fixed the standalone mode, which is now activated by launching with
--standalone with an argument giving the socket port or path. For example,
localhost:8000 or /tmp/iipsrv.sock.
31/10/2006:
- Added hillshading Task class and function for simulated raking light
visualization using 3D surface normal data. This is used via the SHD
command in association with CVT, which takes 2 arguments: the horizontal
light source angle in degrees and the vertical angle from the horizontal
plane.
26/09/2006:
- Cleaned up the hash_map and pool_allocator stuff a little to use typedefs
instead of #ifdefs.
- Added the legacy JTLS command class for panoramic views.
22/09/2006:
- Added an FCGI stand-alone mode usable with lighttpd's spawn-fcgi command.
- Also changed the IIPImage cache to use a hash_map and pool_alloc memory.
19/09/2006:
- If we are using appropriate versions of g++, we now use the high
performance pool_alloc memory allocators for our cache containers.
Also, instead of a std::map, we use the hash_map extension which
offers better performance. Otherwise we default to std::map.
- Fixed problem in TileManager where uncompressed tiles in the cache
were not being cropped when converted to JPEG. The IIPImage tile_width
and tile_height fields now hold the base tile size and not the current
tile size.
18/092006:
- Added a "Last-Modified" and "ETag" header to the CVT HTTP response
to prevent double requests from being made by web browsers.
- Fixed bug in CVT where the tile size was being incorrectly set from
the IIPImage object and not the tile itself, which was a problem
when getting tiles from the cache.
15/09/2006:
- Changed the Cache keys to be simple strings rather than custom
objects. This has solved one of the crashing problems when tiles
are deleted from the cache.
29/08/2006:
- Added Writer class to shield the command implentations from any
FCGI specific functions.
28/08/2006:
- *Major* refactoring of the code. Each command is now called via its own
Task class (command pattern), with no processing done in Main.cc.
OBJ commands are in OBJ.cc and each output command (eg TIL,CVT etc)
now have their own classes.
- The xangle and yangle variables are now in the View class, which
was previously named the ImageTransform class.
25/08/2006:
- Cleaned up the option variable parsing in Main.cc. It is now mostly
done via an Environment class, which checks for defaults etc.
16/08/2006:
- Moved QLT limit checking from Main into JPEG class. Also now check
for empty strings.
08/08/2006:
- Changed the contrast adjustment code to limit the result to a max of
255.0 as this was creating problems with the windows build.
07/03/2006: Version 0.9.6 release.
13/02/2006:
- Fixed another problem on Mac OS X in TPTImage.cc. The number of
channels and bits per sample were giving strange values, so a
temporary uint16 variable is now used and cast from. It now works
perfectly on Mac :-)
09/02/2006:
- Changed the start_t and start_u types in Timer.h to long for
compatibility with Solaris and Mac OS X.
- Some code cleanups in the IIPResponse class.
23/01/2006:
- Added an extra timer for tile insertion - this is the slowest
cache operation. We should look to put this in a separate
thread at some point!
18/01/2006:
- Added support for ptif suffix images. These are in fact just
pyramidal TIFF images.
11/01/2006:
- More fixes to the TileManager class. Cache can now handle
multiple compression types for the same tile simultaneously.
24/12/2005:
- Major rewrite of the TileManager class. Now much more concise.
21/10/2005:
- Added a check in JPEGCompressor for the number of channels.
JPEG can handle only image with either 1 or 3 channels.
13/10/2005:
- Added a TileManager class to act as a higher level access to
the tile cache. It checks whether a JPEG compressed tile
already exists and if not decodes one from the source image.
It also crops any edge tiles to the correct size (required
for the new Vips TIFF format).
12/10/2005:
- Fixed a JTL problem with the new tiled TIFF format. The edge
tiles are now cropped before being sent out.
- Reworked JTL to just forward the request to JTLS rather than
duplicating the code there.
09/06/2005:
- Changed IIPImage.cc to use glob conditionally if glob has been
detected. This is needed for mingw compilation.
01/04/2005:
- Completed an LRU tile cache with the ability to set the max
cache size via the configuration variable MAX_IMAGE_CACHE_SIZE,
specified in MB.
22/03/2005:
- Added new Timer class to handle timing data to debug tile
access, command and total request times.
06/01/2005:
- Found problem in the CVT code when dealing with image sequences
of different numbers of channels. We have to reload the channel
information.
15/12/2004:
- CVT now works with the new standard compliant TIFF tile format
as used by vips-7.10 and later.
10/12/2004:
- CVT now works with 16 bit TIFF. The compression type reported
by TIL also switches from JPEG with 8 bit images to none with
16 bit.
08/12/2004:
- Added CNT contrast command support. Also added check to
TPTImage openImage() for whether our image is in fact
tiled or not, which can cause the server to crash.
07/12/2004:
- Added 16 bit support. Changes to RawTile - the data is now
a generic (void*) and there are now fields for channels per
sample and bits per channel. Changes also to TPTImage.cc,
Main.cc and JPEGCompressor.cc.
01/09/2004:
- Changed the LAB2sRGB code to allow a/b values from
+-127 as per the TIFF spec instead +-100.
- Also fixed a problem caused by signed/unsigned comparisons
in ImageTransform with requests for CVT sizes smaller than
the tile size.
26/08/2004:
- Added largefile support by simply adding a configure
directive that will add the appropriate defines.
05/07/2004:
- Fixed problem in JPEGCompressor.cc concerning the value of
a structure that we try to read after de-allocating memory.
Only seems to be a problem with MSVC++ compiler. (Thanks to
Chris Tuijn for spotting this).
11/05/2004: Version 0.9.5 release.
04/05/2004:
- Moved the colorspace check from TPTImage::getTile to
TPTImage::openImage so that a Colorspace request will always
have an associated colour space and not just after getTile
has been called. We assume for now that all the tiles of an
image are all of the same colour space.
21/05/2004:
- Removed no-cache pragma from CVT header. Also modified
max_CVT variable to limit the effective size and not the
total image size. ie a small RGN of a massive image can
still be sent OK. The resolution calculations have been
moved into ImageTransform and is now performed at the last
moment in the CVT section.
16/05/2004:
- Added MAX_CVT environment variable to limit width and height
requests of CVT commands. The default is set to 5000 pixels.
02/04/2004:
- Added SDS command support. This can be used for specifying
subimages or the horizontal/vertical angle in 3D sequence
images and will eventually replace the use of JTLS by the
client. Current usage is SDS=h,v where h and v are the
horizontal and vertical sequence angles.
01/04/2004:
- Fixed length given by the error response. We now count both
the code and the argument.
30/03/2004:
- Fixed TIL to only send the MIME type once before the tile
sequence.
- Added better error handling. The IIPResponse is now set
whenever we have a problem in Main.cc. Plus the catch
clause now checks for an error in IIPResponse and sends
this if available rather than the advertising banner.
29/03/2004:
- Changed the vertical and horizontal views syntax back to
old style.
- Fixed problem with the number of CRLF's after the MIME type:
Apache complains if there are not 2 sets of CRLF.
- Changed the IIPImage metadata map to use the string class
rather than char* - seems to fix a freeze problem.
06/03/2004:
- More fixes to RGN code. Moved the verification logic into
the ImageTransform class itself rather than having it in
Main.cc. Also fixed a crash resulting from the use of
inlining - a gcc bug perhaps? Anyway, now perfectly stable.
05/03/2004:
- Some minor fixes to the RGN code to prevent crashes from
images of less than 8 pixels in size.
04/03/2004:
- Finished implementation of RGN CVT modifier. Can now specify
a region to CVT rather than always having the whole image.
- Updated embedded XHTML advertising page.
- Some doxygen-related cleanups and documenting.
03/03/2004:
- Changed Horizontal-views and Vertical-views return syntax to
return the number of views also (request by Denis):
Vertical-views/<number views>:view1 view2 ...
eg. Vertical-views/3:0 90 180.
02/03/2004:
- Added automatic colour spaces conversion for CIELAB images
to sRGB in CVT mode.
14/12/2003:
- Added Content-disposition headers to the JTL,JTLS and CVT output.
10/11/2003:
- Added missing std:: prefixes to a few STL variables in IIPImage.h
and IIPResponse.h.
- Fixed the TIL command to return only the tiles within the
rectangle defined by the specified range rather than all of them.
25/10/2003:
- Fixed missing value in error message for non decodable tiles
in TPTImage.cc and erroneous extra CRLF in the Colorspace
reply.
22/10/2003:
- Changed the IIPImage class to give the horizontal and
vertical angles a default value of 0,90 for non-sequence
images.
11/10/2003:
- Removed the new allocator in getFileName() in IIPImage.cc to
a statically allocated buffer of size 1024.
04/10/2003:
- Generalised the metadata handling in Main to cope with any
available metadata.
- Changed the way Basic-info and Summary-info work to simply
add more objects to the request string rather than try to
handle it themselves. Nicely eliminates duplicate handler code
without introducing classes or external functions for each obj.
- Also fixed the server capability return code to follow the IIP
spec properly.
03/10/2003:
- Added tracking of image data to the IIPResponse class. In this
way, we can print an error if we have an uncomplete command
syntax. eg. a WID without a CVT. We should now never not have
some sort of response from the server.
- Also added Author, Subject etc metadata handling to IIPImage
and the necessary handlers to IIPResponse.
15/09/2003:
- Added doxygen compatible comments to the header files. The
generated documentation is in the doc subdirectory.
- Changed sprintf to snprintf in Main.cc for the vertical-views
handler; snprintf is already used everywhere else.
- Added IIPResponse class to handle message passing back to the
client from OBJ requests. This allows for better error and
mime header handling and eliminates having to use FCGX_Fprintf.
- Added SIGHUP handling to the other signals handled - we simply
exit and allow mod_fastcgi to restart us.
- Added support for IIP-opt-comm and IIP-opt-obj requests.
- Removed the deprecated Max-sequence and Vertical-views object
handlers.
12/09/2003: Version 0.9.4 release.
- Added content-type heading to error returns.
- Added default catch() clause to the end of the main try block.
11/09/2003:
- Added Base64 URL decoding for the image path argument supplied
to the FIF command.
- Cleanups to eliminate most GCC -Wall warnings.
10/09/2003:
- Changed tolower to ::tolower to fix compilation problem using
GCC 3x.
- Logging cleanup.
08/09/2003:
- Major cleanup up the JPEGCompressor class.
- Added bits per pixel to the IIPImage copy constructors.
- Used the new JPEG buffer-buffer functions to add support for the
CVT command (limited to JPEG output only).
07/09/2003:
- Modified the JPEGCompressor class to allow stream-based buffer
to buffer encoding via 3 new functions (init, compressstrip and
finish).
03/09/2003:
- Fixed bug in TPTImage.cc. Added TIFFGetField commands for tile_width
and tile_height so that they get reset to the correct value even if
we loop through the end of a row.
- Added a bits per pixel field to the IIPImage class.
02/09/2003:
- Fixed mis-placed jpeg_set_defaults in JPEGCompressor.cc.
Was being called after some individual values were set. This only
seemed affected the dct_method. Should compress faster now.
28/08/2003:
- Added WID and HEI command support.
25/08/2003:
- Autoconf cleanups. Now properly detect for JPEG and TIFF.
24/08/2003:
- Improvements to the configure script. Can now completely disable
the dynamic module loading code from even compiling.
- The FCGI development library is now included in the distribution
for convenience and is integrated into the top-level configure
system. It is only used if it is not found on the computer.
22/08/2003:
- Added extra variable to track the current vertical position as
well as the horizontal. Fixes bug when switching between vertical
angles on sequence zero.
- XHTMLified the advertising banner :-)
22/03/2003: Version 0.9.3 release.
- Reworked and cleaned up the TIL compression type and subtype data
stream prefix with reference to the FlashPix specification.
21/03/2003:
- All commands are converted to lower case to handle the java JAI
IIP implementation which does not properly follow the spec.
- Also fixed typo in the Colorspace OBJ reply.
15/03/2003:
- Modifications to the JPEGCompressor constructor to take only the
Q factor. Plus the environment variable JPEG_QUALITY can
set the default Q factor.
- Plus added an #undef HAVE_STDLIB_H to JPEGCompressor.h which was
interfering with libjpeg. No compiler warnings now even
with -pendantic set :-)
13/03/2003:
- Added extended colour space handling. The TIFF image now has its
colourspace extracted and a ColourSpace enum type now exists.
Greyscale, RGB and CIELAB are now handled, though the latter is not
in the official IIP spec.
10/03/2003:
- Changed RawTile copy constructor to use memcpy instead of looping
through an array: Big speed improvement :-)
08/03/2003:
- Added USR1 and TERM signal handling to main loop: We now have some
stats printed in the logfile on shutdown.
- Modified IIPImage to accept a filename pattern variable, so that
the "_pyr_" image sequence pattern can be user modified.
- Plus started work on a new tile cache system, but seems very slow,
so will mothball it till after the forthcoming release.
10/11/2002:
- Changes to some header files etc to make it compatible with gcc 3.2:
Mainly STL string specifiers, plus replacement of slist type
with std::list.
24/03/2002
- Changed error handling to follow IIP return code specification
for unsupported objects and commands. Should do this for
each individual exception also.
- Added runtime configuration variable for max image cache size.
18/03/2002: Version 0.9.2 release.
- Changes to JPEGCompressor.cc: Fixed bug when encoding very small
tiles. Sometimes the JPEG data is larger than the original
so we need to allocate some extra memory just in case.
- Also fixed the iip_empty_output_buffer( j_compress_ptr cinfo )
function. Now properly empties the buffer and returns TRUE.
- The Compress() routine now passes the entire image buffer array
into jpeg_write_scanlines rather than doing it row by
row. The row array is dynamically allocated and deleted
at the end.
- Added proper copy constructor to RawTile class to properly copy
data without leaving dangling pointers.
09/08/2001:
- Added time stamp.
- Some minor changes to the JPEG wrapper - a couple of ints
changed to size_t's and a conditional added just before
the memcopy code.
07/07/2001: Version 0.9.1 release.
- Added field for number of bands in Rawtile.h, so that we can now
view 1-band black and white as well as 3-band colour images
- Added missing JTL command handler for single non-sequential images
This does the same as JTLS command, but supplies 0 for sequence
and angle.
05/03/2001: Version 0.9 release.
- Bug fixes: moving IIPImage objects in the cache was resulting
in lost information.
- DSOImage memory bug. Modules should handle their own cleanup
in close_image, which is now called by the ~DSOImage
04/03/2001:
- Changed ModuleLoader to a DSOImage derived class of IIPImage.
- Use a STL map of image type to module path keywords instead
of trying to store caches of DSOImages.
- Clean up and rationalisation of IIPImage class and derived
classes.
01/03/2001:
- Added tokenizer class.
- Now checks for variables passed to fcgi at start up time
via --initial-env directive within Apache.
- Added basic ModuleLoader class for loading external image decoders.
- Fixes so that it no longer crashes even with null input query etc.
- Removed ifdef DEBUG stuff.
27/02/2001:
- Added Tile-size directive and related IIPImage::getTileWidth() etc.
- Allowing for various tile sizes to be used :)
- Improved logfile reporting.
