Arithmetic coding is a feature of the JPEG standard. Although libjpeg
had always implemented arithmetic coding, it was compiled out by default
due to patents.
Those patents have now expired.
libjpeg 8 now enables arithmetic coding by default. Distributions which
use libjpeg < 8 can also support arithmetic coding by using the
appropriate CFLAGS to enable it. libjpeg-turbo 1.3.1 also has support
for arithmetic coding and is in popular shipping distributions.
Software such as jpegtran can losslessly convert Huffman compressed
images to arithmetic coding and vice versa. The lossy behavior of JPEG
does not happen at this (bit coding) layer of the format.
This initial patch provides a checkbox (disabled by default) to create
files which use arithmetic coding. It also has a tooltip warning that
such files may not be compatible with older decoders.
and keep GIMP_ICON_TYPE_STOCK_ID as a deprecated alias. Change all
plug-ins accordingly and increase the pluginrc file version number so
it gets regenerated with "icon-name" instead of "stock-id".
as .tif with jpeg compression
make unsensitive the JPEG radio button when the image
is indexed, similarly to Fax Group 3/4 compression
enabled only for monochrome images
move the file creation/truncation after checking for
invalid requests and return a GError in case of error
Add a utility function to wrap PDB compat nodes in gimp:cast-format
ops, so we can use ops that are now implemented in linear RGB for
plug-in compat procedures, which are all supposed to work on gamma
corrected RGB.
GIMP_ADD_foo_MASK -> GIMP_ADD_MASK_foo
GIMP_foo_MODE -> GIMP_BLEND_foo
GIMP_foo_CLONE -> GIMP_CLONE_foo
GIMP_foo -> GIMP_DODGE_BURN_TYPE_foo
GIMP_foo -> GIMP_TRANSFER_foo
Add compat values for the old names and compat code to script-fu
and pygimp.
The file does not need the includes, but including libgimp from a C++
file makes sure the build fails if something forbidden gets added to
any public libgimp header, such as a struct member named "private".
Add an "ip" parameter as *first* argument to the
plug-in-script-fu-server procedure. This is an incompatible change
with the intent to make any old-style calls to the procedure
fail. Also reorder the GUI to have the IP in the first line.
save_image(): remove bogus "- 1" from the calculation of the height of
the row of tiles to save. Fixes garbage saved to the last line of all
PIX files.
save_image(): use the chosen export format's bpp, not the drawable's.
Fixed exporting of > 8 bit images.
Also make the plug-in export indexed images directly (without
requiring export conversion).
If the passed dialog is a GimpColorProfileChooserDialog, handle its
"response" signal automatically and also destroy it when the combo box
is destroyed (before we leaked all dialogs). Remove the same callback
from all places using GimpColorProfileComboBox.
and improve gimp_color_profile_combo_box_set_active() to get the
profile's label from the ICC file if no label was provided. Simplifies
all its callers and removes code duplication.
Instead of adding multiple #else ... #endif branches for missing lcms
types, do the fallback at the end if no lcms type could be determined
for the layer's pixel format.
- fall back to float for missing half float
- implement double and fallback to RGBA float for missing RGBA double
- fall back to float for everything else potentially missing
which returns a string meant to label the profile in the GUI, it's
either the profile's description, its model, or "(unnamed profile)" as
a fallback. Use the function instead of duplicating that logic
inconsistently and imcompletely all over the place.
- verify that GimpColorConfig.rgb_profile actually is an RGB profile.
- on failure, don't assoociate the rgb_profile filename with the
built-in sRGB profile.
and remove the RGB check from all callers of lcms_image_get_profile(),
the function now returns an RGB profile or NULL. This implicitly stop
checking that 'icc-profile' actually contains an RGB profile.
Ed J