Imager

Changes for version 0.39

For latest versions check the Imager-devel pages: http://www.eecs.umich.edu/~addi/perl/Imager/devel/

Changes for version 0.39

A few scattered mymalloc/free fixes
io_buffer implemented as a source for io layer and XS and perl OO code added.
Test for iolayer t/t07iolayer.t implemented.
Fixed known memory leaks.
gif screen was wasn't being calculated correctly

Changes for version 0.39

split Imager::Font into a base, *::Type1 and *::Truetype
writing faxable tiff now allows 2 and 4 channel images
virtual image interface - 8-bit/sample images
paletted images
16-bit/sample images
masked images
writing non-8bit images to raw
writing '' '' to tiff
i_convert support for high-bit images and paletted images
i_copy for high-bit and paletted images
tests for rubthru
rubthru can now rub a 2 channel image over a 1 or 3 channel image
rubthru for high-bit images
i_readgif_multi functions, which return all the frames from a GIF file, along with a bunch of meta-information as tag
OO interface to tags
OO interface read_multi() to read multi-image files (just GIF so far)
documentation for the multi-image GIF reading and tags
rotate() method with rotate by steps of 90 degrees (and docs)
fixed a bug in i_img_pal_new_low()
added gaussian to the filters list
documented the individual filters
fixed the right-hand side of bounding boxes for TT fonts where the last character overlaps the advance width (eg. italic fonts)
added rotation by exact amounts in degrees or radians, implemented using the matrix idea from Addi. The procedural matrix transformer is exposed, but still needs testing (as XS) and needs an OO interface, hopefully with some helper tools, like the preset interface with ->convert().
MY::postamble() in Makefile.PL included a broken rule (Makefile.PL 1.13.2.5)
support for GDI fonts under Win32
made that work for cygwin too (needs the w32api package)
freetype1 support under Win32
t1lib support under Win32
fixed a minor bug in font.c (invalid font files caused a SEGV)
checked cygwin for both t1lib and freetype1
freetype 2 support
exposed the matrix_transform() function to the OO interface
added Imager::Matrix2d convenience class
support for setting the resolution when writing to PNG
retrieve physical resolution to tags when reading from PNG
found an XS bug in the interface to i_tags_add()
fixed handling of writing text to a channel with freetype2 (sometimes the edge of a character would damage the edge of the previous character)
some utf8 support for freetype2
some vertical layout support for freetype2
named parameters for specifying colors, with quite a few options.
glyph size issues for freetyp2
minor problem in handling of canon option
low-level bmp writing (moving it to laptop)
Windows BMP reading and writing
added OO interfaces for the mosaic, bumpmap, postlevels and watermark filters
added t/t61filters.t to test the filters
fixed some problems in jpeg handling from the exp_represent merge
fixed buffer flushing for wiol jpeg code
added some tests that will hopefully catch it in the future
added the OO interfaces to the mosaic, bumpmap, postlevels and watermark filters, and documented them
fixed a sample size conversion problem in i_gpixf_d() etc.
added simple color representation conversion functions (used in i_fountain().)
added the fountain filter:
- creates gradients similar to paint software
- 90% support for GIMP gradient files
- OO interface and documentation
- Imager::Fountain for building/loading fill definitions
- named value translation for filters
added a generic fill mechanism
- created versions of i_box() and i_arc() that can fill using generic fills
- solid generic fills (with alpha blending if asked for)
- hatched generic fills (with some options)
- fountain generic fills
- sample code to generate an examples page
improved the scale* hatches a bit
add the flood_fill() method (using the existing i_flood_fill)
implement i_flood_cfill() based on i_flood_fill, and add general fills to the flood_fill() method
generalize the combine parameter to get different ways of combining the fill with the target
the tt driver (freetype 1) didn't handle the first character hanging off the left of the character cell
the tt driver produces some artifacts when characters overlapped
error handling for writing jpeg images
writing paletted images to GIF now uses the image palette if it's small enough
$img->arc() now calls i_circle_aa() if a complete circle is being drawn in a plain color
image based fills
unsharp mask
make i_conv() clamp the bottom end of the samples range too (makes it useful for sharpening)
adjust ascender/descender values for FT1.x to avoid losing descenders (specifically the bottom of "g" in ImUgly.ttf or arial.ttf at 14pixels)
added tga.c to read targa images
added i_bumpmap_complex to do more accurate bumpmapping
added an image type with doubles as samples
change i_copy() and i_sametype() to handle double/sample images
added basic POD to trans2.c
transform2 now uses the error interface
myrealloc() is implemented for malloc debug mode
now buffer chains are freed when destructor for Imager::IO is called
adjusted the Lanczos window width for the scaling code and added code to normalize the filter generated to preserve intensity scaling.
constant edge extension for scaling operations
better error checking of automatic fill conversions
fix some range checking for the fountain fill segment type