Imager release history. Older releases can be found in Changes.old
-Imager 0.84
+ - eliminate the old IIM_new(), IIM_DESTROY() names from Imager's
+ internals, those names only matter for the XS interface.
+
+ - improve error reporting when PERL_INITIALIZE_IMAGER_CALLBACKS finds
+ the API level compiled into a loadable module such as
+ Imager::File::GIF doesn't match that of Imager. Previously it
+ could be difficult to determine exactly which module was failing to
+ load.
+ https://rt.cpan.org/Ticket/Display.html?id=77173
+
+ - The size of rotated images is no longer rounded up so aggressively.
+ Added rounding to the linear interpolation done for rotate() and
+ matrix_transform() for 1 and 3 channel 8-bit images.
+ Adjusted the two tranlate matrices used to build the final rotation
+ matrix to use the distance between the outlier pixels rather than
+ the pixel dimensions (ie. dimension-1).
+ With all of this the output of rotate(degrees => 270) on an 8-bit
+ image exactly matches the output of rotate(right => 270).
+ https://rt.cpan.org/Ticket/Display.html?id=77063
+
+Imager 0.90 - 30 Apr 2012
+===========
+
+Bug fixes:
+
+ - Imager::Test::is_imaged() attempted to process an "epsilon"
+ parameter but the prototype didn't allow for the extra parameter.
+ Corrected the prototype.
+
+ - when downconverting samples (eg. from floating point to 8 bit)
+ Imager now rounds the sample value rather than attempting to
+ allocate input values over output values equally. The old
+ behaviour had the probably surprising effect of converting a
+ floating point 2.1/255.0 into an 8-bit 3 rather than the expected
+ 2.
+ This may result in slightly different 8 or 16-bit output images.
+
+ - BI_BITFIELD BMP images were handled incorrectly, both in
+ incorrectly calculating the space required for the masks and in
+ processing the image data itself.
+ https://rt.cpan.org/Ticket/Display.html?id=76736
+
+ - some odd width BMP BI_RLE4 images use run lengths that run one off
+ the edge of the image. Imager now allows this, discarding the
+ extra column.
+
+ - odd length RLE4 runs in BMP images were decoded incorrectly.
+
+ - pkg-config could sometimes return a library that was in a directory
+ EU::MM / $Config{libpth} doesn't know about, but the compiler did.
+ If no -L is included in the pkg-config library information check if
+ EU::MM can find the library, and if not, search our configured
+ directories and insert that into the library flags.
+ https://rt.cpan.org/Ticket/Display.html?id=75869
+
+ - Imager::Probe can now probe for libraries with dependent libraries,
+ common for static linking, eg. libpng requires libz.
+ https://rt.cpan.org/Ticket/Display.html?id=74043
+
+ - libpng 1.5 specific probes were looking for libpng 1.4 filenames.
+
+ - added alternative probe configurations that try to link libz, to
+ handle a statically linked libpng.
+ https://rt.cpan.org/Ticket/Display.html?id=74043
+
+ - if a probe includes testcode, Imager::Probe now checks that code as
+ part of the process of checking each configuration rather than as a
+ post test of the found configuration. This allows alternate
+ configurations to be checked if a matching but non-working
+ configuration is found.
+ https://rt.cpan.org/Ticket/Display.html?id=74043
+
+Other changes:
+
+ - when reading or writing images via callbacks, the default callbacks
+ now push an error message indicating that a required callback was
+ called but not supplied.
+ https://rt.cpan.org/Ticket/Display.html?id=76782
+
+ - clarify which callbacks are required for reading and writing TIFF
+ images.
+
+ - improve logging for creation of callback I/O layers.
+
+ - a little more documentation for Imager::Probe.
+
+ - the i_get_file_background() and i_get_file_backgroundf() APIs now
+ return int to indicate whether the i_background tag was found.
+
+ - PNG rework
+ - improve error reporting
+ - add png_interlace, png_bits tags
+ - read paletted images as paletted images, including transparency
+ - read 1 bit greyscale images as a type suitable for other file
+ handlers to write as bilevel
+ - read 16 bit/sample PNG as 16-bit/sample Imager images
+ - write "bilevel" paletted images as 1 bit grayscale images
+ - write paletted images as paletted images
+ - write 16-bit (or higher)/sample images as 16-bit/sample PNG
+ images
+ - improved metadata support
+ https://rt.cpan.org/Ticket/Display.html?id=29268
+
+Imager 0.89 - 18 Mar 2012
+===========
+
+Bug fixes:
+
+ - getpixel(..., type => "float") and the API i_gpixf() have been
+ broken on paletted images since they were implemented.
+ https://rt.cpan.org/Ticket/Display.html?id=75258
+
+Other changes:
+
+ - links in the METHOD INDEX now point at the method documentation
+ rather than the heading you can find them under.
+ https://rt.cpan.org/Ticket/Display.html?id=71495
+
+ - Imager (and the bundled dynamic modules) no longer fallback to
+ using DynaLoader if loading via XSLoader fails.
+ For the bundled modules this could hide useful error messages.
+ https://rt.cpan.org/Ticket/Display.html?id=75560
+
+ - IM_DEBUG_MALLOC mymalloc() no longer sn?printfs() a string to a
+ buffer in the array of allocations, but just stores the filename
+ pointer and line number.
+ https://rt.cpan.org/Ticket/Display.html?id=70388
+
+Imager 0.88 - 22 Feb 2012
+===========
+
+ - describe how to build libgif etc on OS X in such a way as to be
+ compatible with a fat binary perl (such as the system perl), in
+ README.
+ https://rt.cpan.org/Ticket/Display.html?id=73371
+
+ - update the change notes for 0.77_01 to indicate that libungif
+ support was removed.
+
+ - add some other imaging modules to SEE ALSO
+ https://rt.cpan.org/Ticket/Display.html?id=73906
+
+ - note that the generator of the apparently non-DFSG-free postscript
+ in MMOne.pfb is a Debian package.
+
+ - setsamples() is now a true complement to getsamples() - it can
+ write 8-bit or floating point samples from a scalar or array
+ reference. This adds i_psamp() and i_psampf() to the C level API.
+
+ - the XS interfaces to i_gsamp(), i_gsampf() and i_gsamp_bits() have
+ changed to make better use of the typemap, but these aren't part of
+ the perl level API anyway. There were no changes to the C level
+ interfaces to these functions.
+
+ - getpixel() and setpixel() now accept a mix of scalar and array
+ references for the x and y parameters, and unequal array lengths is
+ no longer an error.
+ https://rt.cpan.org/Ticket/Display.html?id=73697
+
+Bug fixes:
+
+ - correctly calculate the size of a rotated image
+ https://rt.cpan.org/Ticket/Display.html?id=69261
+
+ - fix incorrect rounding of color values for matrix_transform() and
+ rotate().
+ https://rt.cpan.org/Ticket/Display.html?id=69261
+
+ - Win32 text output is now done in normal combine mode, the alpha
+ component of the color is now significant.
+ https://rt.cpan.org/Ticket/Display.html?id=70014
+
+ - remove long unused gif case from read()
+ https://rt.cpan.org/Ticket/Display.html?id=69244 (partial)
+
+ - the getsamples() target parameter was being treated as a hashref
+ when it's meant to be an array reference.
+ https://rt.cpan.org/Ticket/Display.html?id=74882
+
+ - getpixel() and setpixel() now returns an empty list when invalid
+ parameters are supplied.
+ Invalid values for type now result in an error for getpixel().
+ https://rt.cpan.org/Ticket/Display.html?id=73697
+
+Imager 0.87 - 03 Jan 2012
+===========
+
+ - document the return value of the filter() method.
+ https://rt.cpan.org/Ticket/Display.html?id=72369
+
+ - document i_gsamp_bits() and i_psamp_bits().
+ https://rt.cpan.org/Ticket/Display.html?id=68815
+
+ - properly increment the Imager::Matrix2d $VERSION.
+
+ - actually include the Imager::Test tests in the dist
+
+ - correctly read and write 256x256 pixel ICO files
+ https://rt.cpan.org/Ticket/Display.html?id=69599
+
+ - make the error message from read() or read_multi() when they can't
+ identify the file type match reality.
+ https://rt.cpan.org/Ticket/Display.html?id=72475
+
+ - read() now uses $FORMATGUESS if it can't determine the file type
+ based on the file header, to match read_multi().
+
+ - re-work and add tests for def_guess_type(). def_guess_type() no
+ longer returns any random file extension as the file type.
+
+ - add gray4, gray16 and gray as presets for make_colors.
+ https://rt.cpan.org/Ticket/Display.html?id=67911
+
+ - add make_palette() method that produces a palette from one or more
+ images.
+
+ - fix the Imager dependency for the separately distributed font
+ drivers.
+ https://rt.cpan.org/Ticket/Display.html?id=72643
+
+ - fix i_render_color() to properly draw in "normal" mode - ie. when
+ writing to a 1 or 3 channel image the second or fourth channel of
+ the source color was being ignored, it is now significant.
+ https://rt.cpan.org/Ticket/Display.html?id=71564
+
+Imager 0.86 - 31 Oct 2011
+===========
+
+ - improve error reporting for W32 tests
+
+Imager 0.85_02 - 24 Oct 2011
+==============
+
+Bug fixes:
+
+ - eliminate unused i_gif_opts type (clean-up)
+ https://rt.cpan.org/Ticket/Display.html?id=69245
+
+ - fix combine=0 fill color anti-aliasing on the double/sample path
+ https://rt.cpan.org/Ticket/Display.html?id=71309
+
+ - make default text color non-transparent
+ https://rt.cpan.org/Ticket/Display.html?id=71469
+
+ - apply the last of the Debian unforwarded spelling fixes
+ https://rt.cpan.org/Ticket/Display.html?id=70656
+
+ - the log() method used its message parameter as a C level format
+ string.
+ https://rt.cpan.org/Ticket/Display.html?id=71653
+
+ - provide our own STRLEN typemap entry for older perls.
+ https://rt.cpan.org/Ticket/Display.html?id=71641
+
+ - add extra ppport.h configuration to support older perls.
+
+ - depend on Scalar::Util, since we use it and older perls don't have
+ it.
+
+ - add overloaded eq to Imager::Matrix2d, since older perls don't seem
+ to synthesize it from overloaded "".
+
+ - use T1_StrError() for error messages on modern libt1
+ https://rt.cpan.org/Ticket/Display.html?id=69879
+
+ - actually load the font rather than just adding it to the catalog on
+ creation.
+
+ - Imager::Font->new now produces better error messages for the T1
+ engine.
+
+ - the font has_chars() method now returns perl's true and false
+ values in list context rather than integers, which should be more
+ efficient.
+ https://rt.cpan.org/Ticket/Display.html?id=69158
+
+ - the btm data structure used by the flood_fill code is now
+ initialized more efficiently.
+ https://rt.cpan.org/Ticket/Display.html?id=68994
+
+ - updated the Thanks list in README
+ https://rt.cpan.org/Ticket/Display.html?id=71607
+
+ - check there's at least one coefficient for the convolution filter
+ https://rt.cpan.org/Ticket/Display.html?id=68993
+
+ - make the APIRef synopsis ordering consistent, older versions of
+ perl could order it differently.
+ https://rt.cpan.org/Ticket/Display.html?id=71675
+
+ - we rely on Config.pm's d_vsnprintf as to whether we use
+ vsnprintf/snprintf, which is defined in the Win32 Config.pm even
+ though it only has _ prefixed versions of these. Define our own
+ prefixed names on Win32.
+ https://rt.cpan.org/Ticket/Display.html?id=71642
+
+ - fix library detection with MSVC
+
+ - search a few more library directories, so EU::MM doesn't discard
+ them. Hopefully fixes:
+ https://rt.cpan.org/Ticket/Display.html?id=71643
+
+Imager 0.85_01 - 10 Oct 2011
+==============
+
+ - add simple tests for the Imager::Test test_image generators
+
+ - io_glue I/O buffering re-work:
+
+ - reorganize io_glue to do it's own buffering by default
+
+ - the unbuffered functions are available as i_io_raw_read() (or
+ raw_read() from perl) etc but are not recommended for typical
+ use.
+
+ - use the new i_io_peekn() when checking for file magic to avoid
+ seek, allowing Imager to detect the file type and read the file
+ from an unseekable stream (for formats that don't use random
+ access)
+
+ - added several new I/O layer API functions.
+
+ - fix the TGA performance problem, most noticably on Win32
+ https://rt.cpan.org/Ticket/Display.html?id=70037
+
+ - TIFF now uses wrapper functions of the correct types to avoid casts
+ https://rt.cpan.org/Ticket/Display.html?id=69912
+
+ - the callback IO object did its own buffering, controlled by the
+ maxbuffer parameter supplied to the read() and write() methods.
+ This buffering has been removed, to avoid redundancy with the
+ common io_glue buffering. This also avoids a bug in that code
+ which could rarely pass a zero length to the read callback and
+ then panic about the result.
+
+ - the callback IO object now tests the result of calling the close
+ callback, which should return true for success.
+
+ - the PNM reader did its own buffering. This buffering has been
+ removed to avoid redundancy with the common io_glue buffering.
+
+ - previously the read handlers for fd and callback I/O layers would
+ call the underlying interface (POSIX read or your supplied callback)
+ until it filled the buffer. It now only makes one call.
+
+ - added public constructors for I/O layer objects (see Imager::IO)
+
+ - all core file handlers now use the i_io_foo() wrappers to gain
+ access to buffered I/O rather than calling the I/O layer
+ callbacks directly.
+
+ - all core file handlers now check for error on close.
+
+ - Backward compatibility: if you hava custom file handlers, you can
+ use i_io_write() etc since they're available as macros in older
+ versions of Imager.
+
+ - eliminate the final remnants of io_glue_commit_types().
+
+ - bump IMAGER_API_VERSION, since the above may break assumptions.
+
+ - removed the long unused i_gen_reader() and i_gen_writer() utility
+ functions.
+
+Imager 0.85 - 29 Aug 2011
+===========
+
+The main changes in the release versus 0.84 are:
+
+ - on 64-bit systems, 64-bit types are consistently used for image
+ dimensions and co-ordinated, and for memory block sizes.
+
+ - handle IFD loops in TIFF files correctly. Previously this would
+ lead to an infinite loop.
+
+Bug fixes:
+
+ - fix the link in the getheight() entry in the method index
+
+Imager 0.84_02 - 22 Aug 2011
+==============
+
+Development release, this will become 0.85 if CPAN testers is
+favourable.
+
+Bug fixes:
+
+ - the image file limits set by set_file_limits() weren't being
+ checked when reading TIFF files.
+ https://rt.cpan.org/Ticket/Display.html?id=69915
+
+ - Provide more information about file format module load errors on a
+ failed image file read() or write().
+ https://rt.cpan.org/Ticket/Display.html?id=69194
+
+ - use TIFFReadDirectory() instead of TIFFSetDirectory() to iterate
+ through TIFF images, since it checks for IFD loops.
+ https://rt.cpan.org/Ticket/Display.html?id=69914
+
+ - don't leak memory when out of range palette indexes are supplied to
+ setscanline().
+ https://rt.cpan.org/Ticket/Display.html?id=69242
+
+ - require a later version of CPAN::Meta to ensure JSON::PP and
+ CPAN::Meta::YAML are available.
+ https://rt.cpan.org/Ticket/Display.html?id=69008
+
+ - hoist the per-line calculations for the flines implementations, and
+ modernize the tests a bit.
+ https://rt.cpan.org/Ticket/Display.html?id=70126
+
+ - detect snprintf()/vsnprintf() (cheat by using Config.pm) and use
+ them when available.
+ https://rt.cpan.org/Ticket/Display.html?id=69147
+
+ - if t1lib failed to reinitialize it would be left as marked
+ initialized.
+ https://rt.cpan.org/Ticket/Display.html?id=69877
+
+ - update the bundled (and still modified) Devel::CheckLib
+ https://rt.cpan.org/Ticket/Display.html?id=69170
+
+Imager 0.84_01 - 8 Aug 2011
+==============
+
+Development release as a sanity check for the types re-work.
+
+Massive types re-work:
+
+ - the type used internally for pixel co-ordinates and image sizes is
+ now 64-bit on 64-bit platforms (at least sane ones).
+
+ - size_t is now used consistently for memory block sizes.
+
+ - since this changes the binary interface, the Imager API version has
+ been incremented. Any module that uses the API will need to be
+ rebuilt. In most cases that will be enough, but calls to any APIs
+ that take a pointer to image sizes may need source changes.
+
+ - you should be able to create very large images on 64-bit systems,
+ if you have enough memory. Successfully created a 32768 x 49192 x
+ 3 channel image, filled with a tiled image and scaled it. The
+ unscaled image was also successfully saved to a JPEG.
+
+ - check the image size before attempting to write BMP, GIF, JPEG,
+ PNG, SGI, TGA, TIFF images.
+
+ - correctly handle reading TGA images over 32767 pixels wide or tall.
+
+Incidental changes:
+
+ - the gif_left and gif_top tags are now clamped to non-negative
+ values when writing a GIF image.
+
+ - removed dead callback read/write code
+
+The default maximum memory size when reading files is now 1G.
+
+Imager 0.84 - 20 Jun 2011
===========
- Imager no longer inherits from Exporter (unless you're running an
old, old perl.
+ - Imager can now write progressive JPEGs (it could always read them).
+ https://rt.cpan.org/Ticket/Display.html?id=68691
+
Bug fixes:
- re-work, document and test Imager's logging facility.
- test and add error reporting to to_*() family methods
+ - add to_rgb_double() method.
+ https://rt.cpan.org/Ticket/Display.html?id=65101
+
+ - Imager no longer exports anything by default
+ https://rt.cpan.org/Ticket/Display.html?id=65228
+
+ - convert colors to grayscale if the supplied (or generated) palette
+ contains only grays when performing error diffusion color
+ translation.
+ https://rt.cpan.org/Ticket/Display.html?id=68508
+
+ - writing a paletted image to GIF wouldn't always use the colors
+ supplied (or generated, eg. via make_colors => "mono"), which was
+ confusing at best.
+ https://rt.cpan.org/Ticket/Display.html?id=67912
+
+ - replace (imager|tony)@imager.perl.org in the doc, since I don't
+ plan to continue receiving mail at that address.
+ https://rt.cpan.org/Ticket/Display.html?id=68591
+
Imager 0.83 - 21 May 2011
===========
preparation for separate distribution.
https://rt.cpan.org/Ticket/Display.html?id=49616 (partial)
+ Note: this removed support for libungif from Imager.
+
- optimize filled box drawing (color, not fill)
Bug fixes:
projects / imager.git / blobdiff