Enhance the existing but unused display scaling (hidpi/retina) support
to work independently in x and y direction, and adjust the scaling
factors accordingly when dot-for-dot is off and xres != yres.
Increase GIMP_DISPLAY_RENDER_MAX_SCALE from 2.0 to 4.0 and adjust the
rendering chunk size dynamically so we never render chunks that do
not fit into the GimpDisplayXfer buffers.
This removes the obsolete check which makes the tool fail from
gimp_display_shell_set_mask(). Also change the foreground select tool
and the display mask from using GimpChannel to GeglBuffer, because
that's what it needs, simply buffers. Most changed files simply newly
include <gegl.h> because a GeglBuffer appeared in two headers.
- stroke around the drawn area to work around the impossibility of
tiling antialiased stuff.
- don't use the display xfer stuff because if we overdraw we must
not have anything in the source pattern outside the drawn region
Recent Cairo uses SHM transports when available, and exposes the ability
for its users to manage images shared between it and the display.
This allows us to eliminate copies, and if the architecture supports it
even to upload directly into GPU addressable memory without any copies
(all in normal system memory so we suffer no performance penalty when
applying the filters). The caveat is that we need to be aware of the
synchronize requirements, the cairo_surface_flush and
cairo_surface_mark_dirty, around access to the transport image. To
reduce the frequency of these barriers, we can subdivide the transport
image into small chunks as to satisfy individual updates and delay the
synchronisation barrier until we are forced to reuse earlier pixels.
Note this bumps the required Cairo version to 1.12, and please be aware
that the XSHM transport requires bug fixes from cairo.git (will be
1.12.12)
v2: After further reflections with Mitch, we realized we can share the
transport surface between all canvases by attaching it to the common
screen.
v3: Fix a couple of typos in insert_node() introduced when switching
variables names.
v4: Encapsulating within an image surface rather than a subsurface was
hiding the backing SHM segment from cairo, causing it to allocate
further SHM resources to stream the upload. We should be able to use a
sub-surface here, but it is more convenient to wrap the pixels in an
image surface for rendering the filters (and conveniently masking the
callee flushes from invalidating our parent transport surface).
Cc: Michael Natterer <mitch@gimp.org>
And along with it a lot of stuff like the drawable preview cache, the
gegl tile manager backend, temporary gimp_gegl_buffer_foo() stuff, and
the remaining bits of performance.
The projection is in an evil semi-ported state which makes it work
ok-ish for stuff like layer moving, but absolutely unbearable for
painting, there is also an off-by-one rendering glitch at some zoom
levels.
Create and use Cairo-compatible API for display filters. Also
includes logic changes to the display filters to deal with cairo's
ARGB32 pre-multiplied buffer format.
Instead of passing GimpChannelType as mask color to
gimp_display_shell_set_mask(), change that function to accept a
GimpRGB color.
Adapt GimpForegroundSelectTool, the only user of the display mask
feature, to this change.
Instead of blending the scaled image data onto the checkerboard and
then painting this image to the screen, render the image data into
an ARGB cairo image surface. Then paint a checkerboard on the canvas
and the image on top of it.
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
2008-10-09 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
2008-08-10 Martin Nordholts <martinn@svn.gnome.org>
* app/display/gimpdisplayshell-draw.[ch]
* app/display/gimpdisplayshell-render.[ch]
* app/display/gimpdisplayshell-transform.[ch]
* app/display/gimpdisplayshell-appearance.[ch]: Sprinkle as many
const qualifiers we can without any implementation changes.
svn path=/trunk/; revision=26477
2008-08-10 Martin Nordholts <martinn@svn.gnome.org>
* app/display/gimpdisplayshell-scroll.[ch]: gimp_display_shell_ ->
gimp_display_shell_scroll_ for functions that are scroll
related. Also did some other minor renamings.
* app/display/gimpnavigationeditor.c
* app/display/gimpdisplayshell-draw.c
* app/display/gimpdisplayshell-scale.c
* app/display/gimpdisplayshell-render.c
* app/display/gimpdisplayshell-transform.c
* app/display/gimpdisplayshell-callbacks.c: Adapt to the name
changes.
svn path=/trunk/; revision=26476
2008-07-12 Martin Nordholts <martinn@svn.gnome.org>
* app/display/gimpdisplayshell.c: Kill disp_[xy]offset! We now
keep store that information by using negative values in
offset_[xy].
* app/display/gimpdisplayshell-scroll.[ch]
(gimp_display_shell_scroll_clamp_offsets)
(gimp_display_shell_get_scaled_image_viewport_offset): Adjust
accordingly to preserve current behaviour.
(gimp_display_shell_get_disp_offset): New function to get the old
disp_[xy]offset based on the new offset_[xy].
(gimp_display_shell_get_render_start_offset): New function to get
th old offset_[xy] based on the new offset_[xy].
* app/display/gimpdisplayshell-draw.c
* app/display/gimpdisplayshell-scale.c
* app/display/gimpdisplayshell-render.c: Get rid of
disp_[xy]offset and use
gimp_display_shell_get_render_start_offset() and
gimp_display_shell_get_disp_offset() instead.
svn path=/trunk/; revision=26146
Michael Natterer