GIMP was doing evil hacks lying to GEGL about it's pixels being in a linear
color space when they are not. This causes incorrect rendering, makes gaussian
blur misbehave etc.
The legacy projection modes should be implemented using the same 2.2 gamma
formats that are correct to specify for sRGB data. (for proper color
management in higher bitdepths; icc backend babl formats should be used.)
For the old image modes correct babl formats are:
R'G'B'A u8 - 8 bit RGB with 2.2 gamma (sRGB) with linear alpha component
R'G'B' u8 - 8 bit RGB with 2.2 gamma (sRGB)
Y'A u8 - 8 bit Grayscale with 2.2 gamma with linear alpha component
Y' u8 - 8 bit Grayscale with 2.2 gamma
Y u8 - 8 bit linear data, used for masks/channels
A u8 - 8 bit linear alpha
-----------------------------------------------
RGBA float - 32bit floating point linear light RGB
RaGaBaA float - 32bit floating point linear light RGB, premultiplied alpha
to be used for processing that needs to scale by the alpha,
(blurs, resampling etc)
R'G'B'A float - 32bit floating point sRGB with gamma, to be used where
the result depends on being closer to perceptual when
processing, can be used a cheaper alternative to CIE Lab
based modes.
-----------------------------------------------
The legacy layer modes should use the formats with gamma 2.2 only for loading
and rendering legacy XCF files correctly, in the brave new world compositing
should most likely be done in linear light with "RGBA float" and even better
"RaGaBaA float" like GEGL does for porter duff and other compositing modes.
The ability to chose the legacy layer modes should probably be hidden from the
user unless an old .xcf has been opened.
During development, the GEGL code such have as much exposure to users testing
the development release. There is still the option to switch it off if GEGL is
not adhering to expectations.
Needed because a group layer's projection can have a different type
than its image, at least at some pathologic moment during image type
conversion. But even if it didn't, it's cleaner this way anyway.
* app/core/gimpprojectable.[ch]: add the new vfunc plus public API.
* app/core/gimpprojection.c: use it instead of using the type of the
image returned by gimp_projectable_get_image(). The get_image()
function is now unused in the projection and only needs to stay
because the projection is also a GimpPickable.
* app/core/gimpgrouplayer.c: implement GimpProjectable::get_image_type().
When the projectable's size or image type changes, stop the idle
renderer and remove all queued update area because everything needs to
be re-rendered anyway. Also honor the projectable's offset when
invalidating the entire projection after clearing the pyramid.
The only purpose of this change is to avoid having the "update"
signal twice on GimpGroupLayer (from GimpDrawable and from
GimpProjectable). Switch back to normal g_signal_connect()
in the projection.
Add/Subtract the projectable's offset whenever we go from coordinates
from our public interface (which are always image coordinates) and
coordinates in out internal tile pyramid (wihch always starts at 0,0).
The Gegl projection still needs an offset node that is missing.
Also, connect to the projectable's "update" signal using
g_signal_connect_closure_by_id() instead of simply g_signal_connect(),
so we really connect to the signal of the GimpProjectable interface
and not to the "update" signal of GimpDrawable (which is a conflict
that will happen on group layers).
(gimp_projection_validate_tile): fix stupid braino that made the
recently added optimization loop infinitely on images with a width
that is a multiple of TILE_WIDTH.
2009-01-17 Michael Natterer <mitch@gimp.org>
* all files with a GPL header and all COPYING files:
Change licence to GPLv3 (and to LGPLv3 for libgimp).
Cleaned up some copyright headers and regenerated the parsers in
the ImageMap plugin.
svn path=/trunk/; revision=27913
2008-12-08 Sven Neumann <sven@gimp.org>
* app/core/gimpchannel.c
* app/core/gimpdrawable-operation.c
* app/core/gimpdrawablestack.c
* app/core/gimpimage.c
* app/core/gimpimagemap.c
* app/core/gimplayer.c
* app/core/gimpprojection.c: gegl_node_add_child() and
gegl_node_remove_child() are public API in GEGL now.
svn path=/trunk/; revision=27770
2008-11-10 Michael Natterer <mitch@gimp.org>
* app/core/gimpprojection.[ch]
* app/core/gimpprojection-construct.c: add code that keeps the
gegl processor around across calls, but destroy it anyway until
gegl_processor_set_rectangle() is fixed.
svn path=/trunk/; revision=27607
2008-11-05 Michael Natterer <mitch@gimp.org>
This should remove any image or viewable dependency from the
projection (apart from the projectable's get_image() method, but
that one is not supposed to return the projection's model but
rather the image the projection is part of).
* app/core/gimpprojectable.[ch]: add vfunc get_size() which
completes the API needed for GEGL projection.
Add vfuncs get_layers(), get_channels(), get_components() and
get_colormap() which are needed for the legacy projection code.
* app/core/gimpimage.c: implement the new methods.
* app/core/gimpprojection.c
* app/core/gimpprojection-construct.c: use them and remove all
calls to image and viewable API.
svn path=/trunk/; revision=27558
2008-11-05 Michael Natterer <mitch@gimp.org>
* app/core/gimpprojectable.[ch]: add signal "structure-changed"
and API to emit it.
* app/core/gimpimage.c: emit it when the image emits
"mode-changed" and "size-changed".
* app/core/gimpprojection.c: connect to the new signal instead of
"mode-changed" and "size-changed" to get rid of one more image
dependency.
svn path=/trunk/; revision=27556
2008-11-04 Michael Natterer <mitch@gimp.org>
* app/core/gimpprojectable.[ch]: add vitrual function
invalidate_preview().
* app/core/gimpimage.c: implement it and redirect to
gimp_viewable_invalidate_preview().
* app/core/gimpprojection.c: call the new API instead of
gimp_viewable_invalidate_preview(). Some cleanup in the disabled
cow-projection code.
svn path=/trunk/; revision=27553
2008-11-04 Michael Natterer <mitch@gimp.org>
Unfinished first step to make the projection independent of
GimpImage, also one step closer to layer grouping.
* app/core/Makefile.am
* app/core/core-types.h
* app/core/gimpprojectable.[ch]: add new interface which abstracts
something that can have a projection attached to it. Has "update"
and "flush" signals and get_graph() and get_image()
vfuncs. get_image() is temporary until the hack is finishes.
* app/core/gimpimage.[ch]: implement GimpProjectableInterface,
remove "update" and "flush" signals and made get_graph() a private
implementation of the interface method. Moved interface method
implementations after virtual function implementations.
* app/core/gimpprojection.[ch]: change member "image" to
"projectable" and use the projectable API as often as
possible. Still some implicit dependencies on the projectable
being an image left but it's getting close.
* app/core/gimpprojection-construct.c: same here.
svn path=/trunk/; revision=27552
2008-11-04 Sven Neumann <sven@sven>
* app/base/tile-pyramid.[ch] (tile_pyramid_new):
* app/core/gimpprojection.c
(gimp_projection_get_tiles_at_level):
reverted last change as the code in tile-pyramid does care about
the pixel format and it should continue to reject types that it
cannot handle.
svn path=/trunk/; revision=27545
2008-11-04 Michael Natterer <mitch@gimp.org>
* app/base/tile-pyramid.[ch] (tile_pyramid_new): changed "type"
parameter into "bytes" because tile managers don't care about
the pixel format of their tiles. Reordered parameters to match
tile_manager_new().
* app/core/gimpprojection.c (gimp_projection_get_tiles_at_level):
pass the bytes instead of the image type.
svn path=/trunk/; revision=27544
* app/gegl/gimpoperation*.c: Prefix the GIMP GEGL operations with
"gimp:" instead of "gimp-" so we follow the GEGL prefix style and
better serialize to XML.
* app/tools/gimp*tool.c
* app/core/gimpdrawable-*.c
* app/core/gimpdrawable.c
* app/core/gimpimagemap.c
* app/core/gimpprojection.c: Changed accordingly.
svn path=/trunk/; revision=27512
2008-10-10 Michael Natterer <mitch@gimp.org>
Bug 554983 – Layers Projection using GEGL
First projection using GEGL, wheeeee. Disabled by default because
it doesn't work with floating selection (and will not, FS
refactoring is in the queue).
* app/core/gimpimage.[ch]: add gimp_image_get_graph() which
returns a GeglNode representing the image's projection.
(gimp_image_add_layer_node)
(gimp_image_remove_layer_node): new utility functions to add and
remove layer nodes to/from the graph.
(gimp_image_add_layer)
(gimp_image_remove_layer)
(gimp_image_position_layer): call them to keep the graph up to date.
* app/core/gimpdrawable.c (gimp_drawable_real_update): invalidate
the source node.
* app/core/gimpprojection.[ch]: keep a projection graph around and
add gimp_projection_get_sink_node() which returns the node that
writes to the projection tiles.
* app/core/gimpprojection-construct.c: add
gimp_projection_construct_gegl() which is a few-liner that uses a
GeglProcessor to run the projection graph.
(gimp_projection_construct): call the new function (disabled by
default).
svn path=/trunk/; revision=27207
2008-10-09 Michael Natterer <mitch@gimp.org>
Add GEGL_CFLAGS and #includes as if gimpdrawable.h and gimpimage.h
had a GEGL dependency (they will have in the next commit, but I
wanted to keep the commit separate).
* app/dialogs/Makefile.am
* app/file/Makefile.am
* app/gui/Makefile.am
* app/menus/Makefile.am
* app/paint/Makefile.am
* app/plug-in/Makefile.am
* app/text/Makefile.am
* app/vectors/Makefile.am
* app/widgets/Makefile.am
* app/xcf/Makefile.am: add GEGL_CFLAGS.
* app/actions/*.c
* app/core/*.c
* app/dialogs/*.c
* app/display/*.c
* app/file/*.c
* app/gui/*.c
* app/menus/*.c
* app/paint/*.c
* app/pdb/gimppdb-utils.c
* app/pdb/gimpprocedure.c
* app/plug-in/*.c
* app/text/*.c
* app/tools/*.c
* app/vectors/*.c
* app/widgets/*.c
* app/xcf/*.c: add <gegl.h> or replace <glib-object.h> by <gegl.h>
to all files which include a drawable subclass or gimpimage.h
* tools/pdbgen/app.pl: include <gegl.h> instead of <glib-object.h>
in all generated files.
* app/pdb/*-cmds.c: regenerated.
* data/images/gimp-splash.png: the goat is still sleeping.
By Aurore Derriennic.
svn path=/trunk/; revision=27202
2008-08-12 Sven Neumann <sven@gimp.org>
* app/core/gimpprojection.c (gimp_projection_paint_area): moved
function calls out of CLAMP macros.
svn path=/trunk/; revision=26520
2008-01-22 Sven Neumann <sven@gimp.org>
* app/core/gimpprojection.c (gimp_projection_idle_render_init):
decreased the priority of the projection idle renderer to 150,
halfway between G_PRIORITY_HIGH_IDLE and
G_PRIORITY_DEFAULT_IDLE.
Fixes bug #511214.
svn path=/trunk/; revision=24680
2007-12-13 Sven Neumann <sven@gimp.org>
Speed up our display rendering code paths by keeping data with
pre-multiplied alpha where possible. The projection tile-manager
at 100 % zoom is not affected. So we can still always get the
non-pre-multiplied pixel data.
* app/core/gimpprojection.[ch]: removed
gimp_projection_get_opacity(), the projection is always opaque.
* app/base/tile-pyramid.[ch]: use pre-multiplied alpha for the
upper levels of the pyramid. This speeds up validation of the
upper levels significantly.
* app/base/temp-buf.[ch]: added temp_buf_demultiply().
* app/core/gimpimage-preview.c: demultiply the preview temp-buf
obtained from the projection's tile tyramid.
* app/display/gimpdisplayshell-draw.c
* app/display/gimpdisplayshell-render.c: added code to deal with
pre-multiplied data. In fact all data returned by
render_image_tile_fault() is now pre-multiplied so that
render_image_rgb_a() and render_image_gray_a() don't need to use
the large lookup tables from gimprender.[ch] any longer.
svn path=/trunk/; revision=24352
2007-11-29 Sven Neumann <sven@gimp.org>
* app/core/gimpprojection.c (gimp_projection_idle_render_init):
raise the priority of the idle renderer to
G_PRIORITY_DEFAULT_IDLE.
Should fix bug #499150.
svn path=/trunk/; revision=24241
2007-08-02 Michael Natterer <mitch@gimp.org>
Make sure image thumbnails that are saved or given to plugins are
constructed synchronously. Fixes bug #461703.
* app/core/gimpprojection.c (gimp_projection_pickable_flush):
invalidate the preview after constructing the projection.
* app/core/gimpimagefile.c (gimp_imagefile_save_thumb)
* tools/pdbgen/pdb/image.pdb (image_thumbnail): call
gimp_pickable_flush() on the projection so is constructed now, not
later.
* app/pdb/image_cmds.c: regenerated.
svn path=/trunk/; revision=23105
2007-06-26 Michael Natterer <mitch@gimp.org>
Invalidate the image preview after the projection is
completely constructed. Fixes bug #449141.
* app/core/gimpmarshal.list: add VOID:BOOLEAN
* app/core/gimpimage.[ch]: add boolean parameter
invalidate_preview to the "flush" signal.
* app/core/gimpprojection.[ch]: add boolean member
invalidate_preview to the GimpProjection struct. Set it to TRUE if
it was TRUE in the image's "flush" signal. When the projection is
completely constructed after a flush, invalidate the image's
preview.
* app/display/gimpdisplay-handlers.c
* app/widgets/gimpitemtreeview.c
* app/widgets/gimpimagedock.c
* app/widgets/gimpimageeditor.c: changed callback signatures
accordingly.
svn path=/trunk/; revision=22840
