* float-alpha-value:
[script] Parse easing modes by name
[docs] Update the easing modes documentation
[animation] Implement new easing functions
[animation] Move the alpha value to floating point
The current Alpha value is an unsigned integer that can be used
implicitly as a fixed point value. This makes writing an alpha
function overshooting below and above the current range basically
impossible without complicating an already complex code, and
creating weird corner cases.
For this reason, the Alpha value should be defined as a floating
point normalized value, spanning a range between 0.0 and 1.0; in
order to allow overshooting, the valid range is extended one unit
below and one unit above, thus making it -1.0 .. 2.0.
This commit updates the various users of the ClutterAlpha API
and the tests cases.
This commit also removes all the current alpha functions exposed
in the public API.
To deal with all the corner cases that couldn't be scripted a number of patches
were written for the remaining 10% of the effort.
Note: again no API changes were made in Clutter, only in Cogl.
This is the result of running a number of sed and perl scripts over the code to
do 90% of the work in converting from 16.16 fixed to single precision floating
point.
Note: A pristine cogl-fixed.c has been maintained as a standalone utility API
so that applications may still take advantage of fixed point if they
desire for certain optimisations where lower precision may be acceptable.
Note: no API changes were made in Clutter, only in Cogl.
Overview of changes:
- Within clutter/* all usage of the COGL_FIXED_ macros have been changed to use
the CLUTTER_FIXED_ macros.
- Within cogl/* all usage of the COGL_FIXED_ macros have been completly stripped
and expanded into code that works with single precision floats instead.
- Uses of cogl_fixed_* have been replaced with single precision math.h
alternatives.
- Uses of COGL_ANGLE_* and cogl_angle_* have been replaced so we use a float for
angles and math.h replacements.
* clutter/clutter-behaviour-ellipse.c (actor_apply_knot_foreach):
Don't set the depth if there is no x or y tilt. That way it can
still be used in conjunction with ClutterBehaviourDepth. Thanks to
Tonny Tzeng.
* clutter/clutter-behaviour-ellipse.c:
(clutter_behaviour_ellipse_applied): Do not reset the depth
of the actors to which the Ellipse behaviour has been applied
to, unless the behaviour is going to update it because it has
a tilt on the X or Y axis.
Bug 1209 - Move fixed point API in COGL
* clutter/cogl/cogl-fixed.h:
* clutter/cogl/cogl.h.in:
* clutter/cogl/common/Makefile.am:
* clutter/cogl/common/cogl-fixed.c: Add fixed point API, modelled
after the ClutterFixed. The CoglFixed API supercedes the ClutterFixed
one and avoids the dependency of COGL on Clutter's own API.
* clutter/cogl/common/cogl-clip-stack.c:
* clutter/cogl/common/cogl-primitives.c:
* clutter/cogl/common/cogl-primitives.h: Update internal usage of
ClutterFixed to CoglFixed.
* clutter/cogl/gl/Makefile.am:
* clutter/cogl/gl/cogl-primitives.c:
* clutter/cogl/gl/cogl-texture.c:
* clutter/cogl/gl/cogl.c: Ditto, in the GL implementation of the
COGL API.
* clutter/cogl/gles/Makefile.am:
* clutter/cogl/gles/cogl-fbo.c:
* clutter/cogl/gles/cogl-gles2-wrapper.c:
* clutter/cogl/gles/cogl-primitives.c:
* clutter/cogl/gles/cogl-texture.c:
* clutter/cogl/gles/cogl.c: Ditto, in the GLES implementation of
the COGL API.
* clutter/pango/pangoclutter-glyph-cache.c:
* clutter/pango/pangoclutter-glyph-cache.h: Ditto, in the Pango
renderer glyphs cache.
* clutter/clutter-fixed.c:
* clutter/clutter-fixed.h: ClutterFixed and related API becomes
a simple transition API for bindings and public Clutter API.
* clutter/clutter-actor.c:
* clutter/clutter-alpha.c:
* clutter/clutter-backend.c:
* clutter/clutter-behaviour-depth.c:
* clutter/clutter-behaviour-ellipse.c:
* clutter/clutter-behaviour-path.c:
* clutter/clutter-behaviour-rotate.c:
* clutter/clutter-behaviour-scale.c:
* clutter/clutter-clone-texture.c:
* clutter/clutter-color.c:
* clutter/clutter-entry.c:
* clutter/clutter-stage.c:
* clutter/clutter-texture.c:
* clutter/clutter-timeline.c:
* clutter/clutter-units.h: Move from the internal usage of
ClutterFixed to CoglFixed.
* doc/reference/clutter/clutter-sections.txt:
* doc/reference/cogl/cogl-docs.sgml:
* doc/reference/cogl/cogl-sections.txt: Update the documentation.
* tests/test-cogl-tex-tile.c:
* tests/test-project.c: Fix tests after the API change
* README: Add release notes.
* clutter/clutter-behaviour-ellipse.c:
(clutter_behaviour_ellipse_get_angle_tilt),
(clutter_behaviour_ellipse_get_angle_tiltx),
(clutter_behaviour_ellipse_set_tilt): Fix a double conversion
that was messing up the returned results. (#665)
* clutter/clutter-actor.c: Document the values for full
transparency and full opacity in the set_opacity()
method. (#662)
* clutter/clutter-behaviour-ellipse.c: Improve consistency
in the apidoc.
* clutter/clutter-behaviour-ellipse.c:
* clutter/clutter-behaviour-ellipse.h:
(clutter_behaviour_ellipse_get_angle_startx):
(clutter_behaviour_ellipse_set_angle_startx):
(clutter_behaviour_ellipse_get_angle_endx):
(clutter_behaviour_ellipse_set_angle_endx):
(clutter_behaviour_ellipse_get_angle_tiltx):
(clutter_behaviour_ellipse_set_angle_tiltx):
Changed to take and return angles in degrees represented as
ClutterFixed.
* clutter/clutter-behaviour-ellipse.c:
(clutter_behaviour_ellipse_get_angle_tilt): Avoid recursion
by fixing a typo.
(clutter_behaviour_ellipse_get_angle_begin),
(clutter_behaviour_ellipse_get_angle_end): Correct the angles
here too.
2007-08-03 Emmanuele Bassi <ebassi@openedhand.com>
* clutter/clutter-actor.[ch]: Use GInitiallyUnowned
as the parent structure in the ClutterActor structure
definition; somehow, this has escaped everyone attention
in one year and a half. Luckily, GInitiallyUnowned is
as big as GObject.
(clutter_actor_get_abs_position_units),
(clutter_actor_get_abs_position): Check parameters.
* clutter/clutter-texture.h: Unmangle the flags enum
type declaration, so that dumb parsers like h2defs.py
are not fooled.
* clutter/clutter-behaviour-ellipse.[ch]:
* clutter/clutter-effect.c: Fix some documentation
issues and make gtk-doc happy.
* clutter/clutter-behaviour-ellipse.c: Remove pointer indirections;
add sanity checks on the public entry points; make all the public
properties floating point (where needed) andconvert them to fixed
point internally. (Partial fix for #389)
* clutter/clutter-behaviour-ellipse.c:
Remove uneeded knot signal
* clutter/clutter-behaviour-path.c:
Fix so knot signal is emitted only when a knot is reached.
* clutter/clutter-effect.c:
* clutter/clutter-effect.h:
Add a scale effect.
* configure.ac:
* doc/manual/Makefile.am:
* doc/manual/clutter-manual.xml.in:
* doc/manual/manual.xsl:
* doc/manual/style.css:
Add various bits for application developers manual.
