* app/Makefile.am: build color_cmds, lut_funcs, and pixel_processor
* app/app_procs.c: feedback in the splash screen when loading
parasites.
* app/boundary.c: Optimized find_empty_segs.
* app/brightness_contrast.[ch]
* app/levels.[ch]
* app/posterize.[ch]:
moved pdb and lut calculation code. These files now contain only
GUI functions.
* app/channel.c: Optimized channel_bounds (fewer compares, better
use of registers). Use color_region instead of channel_*_segment
in channel_combine_rect. Optimized channel_combine_ellipse by
skipping pixels inside of the ellipse. Use
pixel_region_process_parallel in channel_combine_mask. Use a
GimpLut in channel_invert, and channel_sharpen.
* app/invert.c
* app/equalize.c: moved the lut functions to lut_funcs.c
* app/gimpdrawable.c, app/gimpdrawableP.h
* app/gimpimage.c, app/gimpimageP.h: removed unused gimpmatrix
variables/includes.
* app/gimplut.[ch]: added new function gimp_lut_process_inline
that operates on a single PixelRegion.
* app/gimpparasite.[ch]: new functions to save/load parasiterc
* app/parasitelist.[ch]: new functions to save/load ParasiteLists
in/from files.
* libgimp/parasite.[ch]: new functions to load/save parasites.
* app/internal_procs.c: get some procs from new location in
color_cmds.h.
* app/pixel_region.[ch]: moved pixel_regions_process_parallel
related functions to a new file.
* app/color_cmds.[ch]: new files for PDB
definitions/implementations of color correction functions.
* app/lut_funcs.[ch]: new files to hold lut creation functions.
* app/pixel_processor.[ch]: new files that contain the
pixel_regions_process_parallel routines. Added some new
capabilities that are currently unused.
* app/gimplut.[ch]: new source files that implement pixel Look Up
Table functions.
* app/Makefile.am: build gimplut.[ch]
* app/brightness_contrast.c
* app/curves.c
* app/invert.c
* app/levels.c
* app/posterize.c: Use the new lut functions. Use
pixel_region_process_parallel in the PDB versions of these routines.
* libgimp/parasite.h
* libgimp/parasite.c: new functions parasite_name and
parasite_compare.
* app/gimpdrawable.c:
* app/gimpdrawable.h: new function
gimp_drawable_get_color_at(...) returns the RGBA[color index]
value at a specified position in the drawable. Don't set the dirty
bit on the image if a new parasite is the same as the old.
* app/gimpimage.c
* app/gimpimage.h new function
gimp_image_get_color_at(...) returns the RGBA[color index]
value at a specified position in the drawable. Don't set the dirty
bit on the image if a new parasite is the same as the old.
* app/by_color_select.c
* app/color_picker.c: use the new gimp_*_get_color_at
functions instead of messing with the tiles.
* app/layer.c: fixed a minor warning.
* app/commands.c:
don't scale the image if the new size == the old size
* app/channel.c: optimized channel_bounds by only checking the
pixels in a tile if it is not already entirely within the
currently computed bounds.