Commit Graph

19 Commits

Author SHA1 Message Date
Emmanuele Bassi
22ce4409b3 Add interpolation for matrices
Interpolating between two transformations expressed using a 3D matrix
can be achieved by decomposing the matrices into their transformations
and do a simple numeric interpolation between the initial and final
states, like we do for other data types.

Luckily for us, the CSS Transforms specification from the W3C provides
the decomposition algorithm, using the "unmatrix" code taken from the
book "Graphics Gems II, edited by Jim Arvo".

Once the matrices have been decomposed, we can simply interpolate the
transformations, and re-apply them onto the result matrix, using the
facilities that Clutter provides for interpolating between two known
GTypes.
2012-09-03 20:54:43 +01:00
Emmanuele Bassi
beb91d7676 interval: Add variadic arguments for initial/final setters
As a convenience for the C API.

Language bindings should already be using the GValue variants.

This commit also moves the custom progress functions out of the
clutter-interval.c, as they are meant to be generic interpolation
functions and not ClutterInterval-specific.
2012-03-15 17:01:12 +00:00
Emmanuele Bassi
2567049ce3 Fix missing/redundant declarations 2012-03-07 12:36:43 +00:00
Emmanuele Bassi
0ee7170dbb Move clutter-util.h into the deprecated section 2012-02-27 15:56:12 +00:00
Emmanuele Bassi
1776ac8ed5 Remove internal usage of ClutterGeometry in StageWindow
The ClutterGeometry type is a poor substitute of cairo_rectangle_int_t,
with unsigned integers for width and height to complicate matters.

Let's remove the internal usage of ClutterGeometry and switch to the
rectangle type from Cairo.

https://bugzilla.gnome.org/show_bug.cgi?id=656663
2011-09-26 12:05:55 +01:00
Emmanuele Bassi
2b81d90dd7 Eliminate G_CONST_RETURN
The G_CONST_RETURN define in GLib is, and has always been, a bit fuzzy.

We always used it to conform to the platform, at least for public-facing
API.

At first I assumed it has something to do with brain-damaged compilers
or with weird platforms where const was not really supported; sadly,
it's something much, much worse: it's a define that can be toggled at
compile-time to remove const from the signature of public API. This is a
truly terrifying feature that I assume was added in the past century,
and whose inception clearly had something to do with massive doses of
absynthe and opium — because any other explanation would make the
existence of such a feature even worse than assuming drugs had anything
to do with it.

Anyway, and pleasing the gods, this dubious feature is being
removed/deprecated in GLib; see bug:

  https://bugzilla.gnome.org/show_bug.cgi?id=644611

Before deprecation, though, we should just remove its usage from the
whole API. We should especially remove its usage from Cally's internals,
since there it never made sense in the first place.
2011-06-07 16:06:24 +01:00
Robert Bragg
9130dc1311 util: optimize _clutter_util_fully_transform_vertices
Instead of unconditionally combining the modelview and projection
matrices and then iterating each of the vertices to call
cogl_matrix_transform_point for each one in turn we now only combine the
matrices if there are more than 4 vertices (with less than 4 vertices
its less work to transform them separately) and we use the new
cogl_vertex_{transform,project}_points APIs which can hopefully
vectorize the transformations.

Finally the perspective divide and viewport scale is done in a separate
loop at the end and we don't do the spurious perspective divide and
viewport scale for the z component.
2011-03-07 13:26:20 +00:00
Robert Bragg
013b2433f0 viewport: consistently use floats for viewports
OpenGL < 4.0 only supports integer based viewports and internally we
have a mixture of code using floats and integers for viewports. This
patch switches all viewports throughout clutter and cogl to be
represented using floats considering that in the future we may want to
take advantage of floating point viewports with modern hardware/drivers.
2011-03-07 13:26:19 +00:00
Robert Bragg
3040b140bc paint_volume: Splits out clutter_paint_volume code
This splits out all the clutter_paint_volume code from clutter-actor.c
into clutter-paint-volume.c. Since clutter-actor.c and
clutter-paint-volume.c both needed the functionality of
_fully_transform_vertices, this function has now been moved to
clutter-utils.c as _clutter_util_fully_transform_vertices.
2010-09-29 15:13:00 +01:00
Emmanuele Bassi
8be43b5285 Add P_() macro for translating property strings
The P_() macro adds a context for the property nick and blurb. In order
to make xgettext recognize it, we need to drop glib-gettexize inside the
autogen.sh script and ship a modified Makefile.in.in with Clutter.
2010-07-15 12:09:01 +01:00
Emmanuele Bassi
79acb088e7 Remove mentions of the FSF address
Since using addresses that might change is something that finally
the FSF acknowledge as a plausible scenario (after changing address
twice), the license blurb in the source files should use the URI
for getting the license in case the library did not come with it.

Not that URIs cannot possibly change, but at least it's easier to
set up a redirection at the same place.

As a side note: this commit closes the oldes bug in Clutter's bug
report tool.

http://bugzilla.openedhand.com/show_bug.cgi?id=521
2010-03-01 12:56:10 +00:00
Emmanuele Bassi
e55966d675 Deprecate clutter_util_next_p2()
The next_p2() function should have never been publicly exposed by
Clutter.
2010-02-06 10:49:33 +00:00
Chris Lord
aa9e91e261 * clutter/clutter-texture.c: (texture_get_tile_pixbuf),
(clutter_texture_get_pixbuf):
        Fix copying textures to pixbufs for tiled textures and correct #ifndef
        typo

        * clutter/clutter-util.c:
        Amend documentation
2008-02-12 17:17:52 +00:00
Matthew Allum
244cacd14b 2007-01-23 Matthew Allum <mallum@openedhand.com>
* Makefile.am:
        * clutter.pc.in:
        * clutter/Makefile.am:
        * clutter/clutter-backend-glx.c:
        * clutter/clutter-backend-glx.h:
        * clutter/clutter-event.c:
        * clutter/clutter-feature.c:
        * clutter/clutter-group.c:
        * clutter/clutter-main.c:
        * clutter/clutter-main.h:
        * clutter/clutter-private.h:
        * clutter/clutter-stage-glx.c:
        * clutter/clutter-stage-glx.h:
        * clutter/clutter-stage.c:
        * clutter/clutter-stage.h:
        * clutter/clutter-util.c:
        * clutter/clutter-util.h:
        * clutter/pango/pangoclutter-render.c:
        * configure.ac:
        * examples/Makefile.am:
        Initial work in supporting different GL backends (ie. GLX/EGL/DirectFB etc).
        Currently just GLX supported and now mostly self contained.

        * TODO:
        Add a note about caching glenables
2007-01-23 20:29:11 +00:00
Emmanuele Bassi
734f808fbc 2006-11-15 Emmanuele Bassi <ebassi@openedhand.com>
* clutter/clutter-alpha.h:
	* clutter/clutter-alpha.c: Add a data parameter to
	the ClutterAlphaFunc; add a data+destroy parameter
	to clutter_alpha_set_func() and to clutter_alpha_new(),
	and turned the latter into clutter_alpha_new_full();
	add a simple, empty constructor clutter_alpha_new().

	These changes makes writing bindings a tad more easy,
	as bindings require passing their own functions in
	order to call the real alpha function.

	* clutter/clutter-behaviour.h: Clean up the header.

	* clutter/clutter-behaviours.[ch]:
	* clutter/clutter-behaviour-opacity.[ch]:
	* clutter/clutter-behaviour-path.[ch]:
	* clutter/clutter-behaviour-scale.[ch]: Split the
	ClutterBehaviourPath, ClutterBehaviourOpacity and
	ClutterBehaviourScale into their own files as they
	have been growing a bit. Fix ClutterBehaviourPath
	API.

	* clutter/clutter-media.h: Remove the commented
	"metadata_available" signal: gtk-doc chokes up on that.

	* clutter/clutter-timeline.h:
	* clutter/clutter-timeline.c: Remove the useless
	ClutterTimelineAlphaFunc signature; add missing accessor
	methods for the properties; clean up a bit.

	* clutter/clutter-util.h:
	* clutter/clutter-util.c: Remove unneeded function
	clutter_util_can_create_texture().

	* clutter/clutter-feature.h: Sync the name of
	clutter_feature_get_all() with the name declared
	in clutter-feature.h.

	* clutter/Makefile.am:
	* clutter/clutter.h: Update.

	* examples/behave.c: Update to the new ClutterAlpha
	constructor.

	* examples/super-oh.c: Use the right pointer and avoid
	the compiler making a fuss about it.
2006-11-15 23:37:53 +00:00
Iain Holmes
a695e2f06c More docustuff 2006-06-22 09:25:01 +00:00
Matthew Allum
c39b868aeb 2006-06-22 Matthew Allum <mallum@openedhand.com>
* clutter/clutter-actor.c:
        * clutter/clutter-clone-texture.c:
        * clutter/clutter-color.c:
        * clutter/clutter-event.c:
        * clutter/clutter-group.c:
        * clutter/clutter-label.c:
        * clutter/clutter-main.c:
        * clutter/clutter-media.c:
        * clutter/clutter-rectangle.c:
        * clutter/clutter-stage.c:
        * clutter/clutter-texture.c:
        * clutter/clutter-timeline.c:
        * clutter/clutter-util.c:
        * clutter/clutter-video-texture.c:
        * configure.ac:
        Documentation updates - add section headers.
2006-06-21 22:34:25 +00:00
Matthew Allum
13ce0e3709 2006-06-15 Matthew Allum <mallum@openedhand.com>
* clutter/clutter-stage.c:
        * clutter/clutter-stage.h:
        Add clutter_stage_set_xwindow_foreign() call
        * clutter/clutter-util.c:
        * clutter/clutter-util.h:
        Add some X error traps
        * examples/super-oh.c:
        Toy with us of new clutter_stage_set_xwindow_foreign() for
        optional screensaver functionality.
2006-06-15 22:04:19 +00:00
Matthew Allum
342ea125f1 Merge gobject-branch into trunk 2006-05-29 08:59:36 +00:00