Commit Graph

53 Commits

Author SHA1 Message Date
Emmanuele Bassi
a09bbffd92 Implement multi-backend support
The Clutter backend split is opaque enough that should allow us to just
build all possible backends inside the same shared object, and select
the wanted backend at initialization time.

This requires some work in the build system, as well as the
initialization code, to remove duplicate functions that might cause
conflicts at build and link time. We also need to defer all the checks
of the internal state of the platform-specific API to run-time type
checks.
2011-11-03 13:45:19 +00:00
Robert Bragg
223e14811c Removes Cogl from the repository
Cogl has now been split out into a standalone project with a separate
repository at git://git.gnome.org/cogl. From now on the Clutter build
will now simply look for a cogl-1.0 pkg-config file to find a suitable
Cogl library to link against at build time.
2011-05-06 15:44:08 +01:00
Robert Bragg
70767f08dc Adds a --with-system-cogl config option for Clutter
This makes it possible to build Clutter against a standalone build of
Cogl instead of having the Clutter build traverse into the clutter/cogl
subdirectory.
2011-04-11 17:54:36 +01:00
Robert Bragg
19b8622983 Optimize culling by doing culling in eye-coordinates
This implements a variation of frustum culling whereby we convert screen
space clip rectangles into eye space mini-frustums so that we don't have
to repeatedly transform actor paint-volumes all the way into screen
coordinates to perform culling, we just have to apply the modelview
transform and then determine each points distance from the planes that
make up the clip frustum.

By avoiding the projective transform, perspective divide and viewport
scale for each point culled this makes culling much cheaper.
2011-03-07 13:26:20 +00:00
Emmanuele Bassi
f99d2336f0 x11: Remove unused variables 2011-02-19 16:47:20 +00:00
Adel Gadllah
0c070cdf91 ClutterX11TexturePixmap: Fix doc comment
The wrong signal name was used probably a copy & paste
mistake, fix that.
2011-01-17 12:21:22 +00:00
Owen W. Taylor
9df6f0c524 ClutterX11TexturePixmap: Optimize ConfigureEvent handling
ClutterX11TexturePixmap watches for configure events to tell when it
needs to name a new pixmap for the window. However, ConfigureEvents
occur on moves in addition to resizes, and doing round trips and
naming new pixmaps every time a window is moved is a real performance
killer.

Add clutter_x11_texture_pixmap_sync_window_internal() that takes the
size/position of the window as arguments rather than always calling
XGetWindowAttributes. This allows us to bypass all work other than
notifying the window-x/window-y properties when we get a ConfigurEvent
for a move.

The last received width/height is saved to allow us to also omit
XGetWindowAttributes on MapNotify events.

The public clutter_x11_texture_pixmap_sync_window() becomes a bit less
efficient since we no longer combine the roundtrips for
XGetWindowAttributes() and XCompositeNameWindowPixmap(), but it appears
to have no callers in current publicly available code.

Several FIXME's are added for areas where there are still weird things
going on in the code or improvements could be made.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2356
2010-11-24 16:19:21 +00:00
Emmanuele Bassi
46c597a1f6 Clean up clutter-private.h/6
Move all Actor private API to a separate file.
2010-10-21 12:22:17 +01:00
Emmanuele Bassi
cf3a29f224 Clean up clutter-private.h/5
Move PaintVolume private API to a separate header.
2010-10-21 12:22:17 +01:00
Emmanuele Bassi
dd2f55c6f6 x11: Protect XComposite API calls
Since we allow compiling Clutter without the XComposite extension
available, we need to protect the calls to the XComposite API with
the guards provided by the configure script.
2010-10-19 10:43:50 +01:00
Robert Bragg
18e3273fb1 x11-tfp: Implement get_paint_volume virtual
One of the later changes made on the paint volume branch before merging
with master was to make paint volumes opt in only since we couldn't make
any safe assumptions about how custom actors may constrain their
painting. We added very conservative implementations for the existing
Clutter actors - including for ClutterTexture which
ClutterX11TexturePixmap is a sub-class of - but we were conservative to
the extent of explicitly checking the GType of the actor so we would
avoid making any assumptions about sub-classes. The upshot was that we
neglected to implement the get_paint_volume vfunc for
ClutterX11TexturePixmap.

This patch provides an implementation that simply reports the actor's
allocation as its paint volume. Also unlike for other core actors it
doesn't explicitly check the GType so we are assuming that all existing
sub-classes of ClutterX11TexturePixmap constrain their drawing to the
actor's transformed allocation. If anyone does want to draw outside the
allocation in future sub-classes, then they should also provide an
updated get_paint_volume implementation.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2349
2010-09-30 11:44:12 +01:00
Robert Bragg
1ea7145efc Queue clipped redraws work in terms of paint volumes
There is an internal _clutter_actor_queue_redraw_with_clip API that gets
used for texture-from-pixmap to minimize what we redraw in response to
Damage events. It was previously working in terms of a ClutterActorBox
but it has now been changed so an actor can queue a redraw of volume
instead.

The plan is that clutter_actor_queue_redraw will start to transparently
use _clutter_actor_queue_redraw_with_clip when it can determine a paint
volume for the actor.
2010-09-29 15:12:57 +01:00
Robert Bragg
bcf20955d3 ClutterX11TexturePixmap: Fix unbalanced error trapping
I think this is what commit 2cf1405506 intended to do since it
specifically mentioned cleaning up the trap in
clutter_x11_texture_pixmap_set_pixmap, but although it moved the untrap
to only be done in the case where Pixmap != None it left the position of
the trap itself unchanged. This meant the error trapping wouldn't be
balanced if pixmap == None since the untrap wouldn't be done. We now
only trap and untrap around the XGetGeometry call done when pixmap !=
None.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2303
2010-09-09 11:18:53 +01:00
Emmanuele Bassi
f8bd45dbce x11-texture-pixmap: Do not go through g_object_get()
The pixmap width and height are stored in our own private data
structure; going through g_object_get() is pointless overhead.
2010-09-08 17:39:04 +01:00
Owen W. Taylor
2cf1405506 Clean up CoglTexturePixmapX11 first
With currently distributed versions of Mesa, calling XFreePixmap()
before glxDestroyPixmap() will cause an X error from DRI. So, we
need to make sure that we get rid of the CoglTexturePixmapX11 before
we XFreePixmap().

clutter_x11_texture_pixmap_dispose(): Call
 clutter_x11_texture_pixmap_set_pixmap() instead of using XFreePixmap
 directly so that we leverage the text-clearing hack and destroy
 things in the right order.

clutter_x11_texture_pixmap_set_pixmap(): Don't do a pointless roundtrip
 and trap a pointless error when setting pixmap to None.

clutter_x11_texture_pixmap_set_pixmap(): Free damage resources when
 we are setting Pixmap to None.

clutter_x11_texture_pixmap_set_window(): When setting a new window
 or setting the window to None, immedediately  call
 cluter_x11_texture_pixmap_set_pixmap(). This means that set_window(None)
 immediately will free any referenced resources related to the window.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2303
2010-09-08 17:24:49 +01:00
Emmanuele Bassi
ac6256ae60 docs: Add @Title to the X11TexturePixmap gtk-doc section 2010-08-28 21:17:23 +01:00
Emmanuele Bassi
8538e1bf58 x11: Clean up TexturePixmap header and private data structure
Align the header file and use bitfields instead of booleans.
2010-07-21 15:14:36 +01:00
Emmanuele Bassi
fd27ca7398 Mark property strings for translation
Both the nick and the blurb fields should be translatable, for UI
builders and other introspection-based tools.
2010-07-15 14:07:07 +01:00
Neil Roberts
5d860a9978 clutter-{glx,x11}-texture-pixmap: Use CoglTexturePixmapX11
The pixmap handling of both of the texture pixmap actors in Clutter is
now removed and instead it just creates a CoglTexturePixmapX11. Both
actors are now equivalent so there is no need to choose between the
two.
2010-06-22 12:22:48 +01:00
Emmanuele Bassi
b2c905ff50 Hide the marshallers
The marshallers we use for the signals are declared in a private header,
and it stands to reason that they should also be hidden in the shared
object by using the common '_' prefix. We are also using some direct
g_cclosure_marshal_* symbol from GLib, instead of consistently use the
clutter_marshal_* symbol.
2010-06-11 16:09:36 +01:00
Damien Lespiau
52a78a7220 analysis: FALSE/0 used in pointer context
While this is totally fine (0 in the pointer context will be converted
in the right internal NULL representation, which could be a value with
some bits to 1), I believe it's clearer to use NULL in the pointer
context.

It seems that, in most case, it's more an overlook than a deliberate
choice to use FALSE/0 as NULL, eg. copying a _COGL_GET_CONTEXT (ctx, 0)
or a g_return_val_if_fail (cond, 0) from a function returning a
gboolean.
2010-06-01 12:08:18 +01:00
Owen W. Taylor
6fcc8c5bce x11: Use has_allocation() in TfP actor
ClutterX11TexturePixmap calls get_allocation_box() when queueing a
clipped redraw. If the allocation is not valid, and if we queue a
lot of redraws in response to a series of damage events, the net
result is that we spend all our time in a re-layout. We can
short-circuit this by checking if the actor has a valid allocation, and
if not, just queue a redraw - the actor will be allocated by the time it
is going to be painted.

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-03-26 00:46:43 +00:00
Emmanuele Bassi
169ce1508b x11-texture-pixmap: Move signal handler override
The signal handling override for the ::queue-damage-redraw should be
done in the class initialization function, not in the instance one.
2010-03-03 17:46:53 +00:00
Robert Bragg
c0d5af5de5 Adds initial clipped redraw support to Clutter
A new (internal only currently) API, _clutter_actor_queue_clipped_redraw
can be used to queue a redraw along with a clip rectangle in actor
coordinates. This clip rectangle propagates up to the stage and clutter
backend which may optionally use the information to optimize stage
redraws. The GLX backend in particular may scissor the next redraw to
the clip rectangle and use GLX_MESA_copy_sub_buffer to present the stage
subregion.

The intention is that any actors that can naturally determine the bounds
of updates should queue clipped redraws to reduce the cost of updating
small regions of the screen.

Notes:
» If GLX_MESA_copy_sub_buffer isn't available then the GLX backend
  ignores any clip rectangles.

» queuing multiple clipped redraws will result in the bounding box of
  each clip rectangle being used.

» If a clipped redraw has a height > 300 pixels then it's promoted into
  a full stage redraw, so that the GPU doesn't end up blocking too long
  waiting for the vsync to reach the optimal position to avoid tearing.

  » Note: no empirical data was used to come up with this threshold so
    we may need to tune this.

» Currently only ClutterX11TexturePixmap makes use of this new API. This
  is done via a new "queue-damage-redraw" signal that is emitted when
  the pixmap is updated. The default handler queues a clipped redraw
  with the assumption that the pixmap is being painted as a rectangle
  covering the actors transformed allocation. If you subclass
  ClutterX11TexturePixmap and change how it's painted you now also
  need to override the signal handler and queue your own redraw.

  Technically this is a semantic break, but it's assumed that no one
  is currently doing this.

This still leaves a few unsolved issues with regards to optimizing sub
stage redraws that need to be addressed in further work so this can only
be considered a stepping stone a this point:

» Because we have no reliable way to determine if the painting of any
  given actor is being modified any optimizations implemented using
  _clutter_actor_queue_redraw_with_clip must be overridable by a
  subclass, and technically must be opt-in for existing classes to avoid
  a change in semantics. E.g. consider that a user connects to the paint
  signal for ClutterTexture and paints a circle instead of a rectangle.
  In this case any original logic to queue clipped redraws would be
  incorrect.

» Currently only the implementation of an actor has enough information
  with which to queue clipped redraws. E.g. It is not possible for
  generic code in clutter-actor.c to queue a clipped redraw when hiding
  an actor because actors have no way to report a "paint box". (remember
  actors can draw outside their allocation and actors with depth may
  also be projected outside of their allocation)

  » The current plan is to add a actor_class->get_paint_cuboid()
    virtual so actors can report a bounding cube for everything they
    would draw in their current state and use that to queue clipped
    redraws against the stage by projecting the paint cube into stage
    coordinates.

» Our heuristics for promoting clipped redraws into full redraws to
  avoid blocking the GPU while we wait for the vsync need improving:

  » vsync issues aren't relevant for redirected/composited applications
    so they should use different heuristics. In this case we instead
    need to trade off the cost of blitting when using glXCopySubBuffer
    vs promoting to a full redraw and flipping instead.
2010-03-02 17:19:11 +00:00
Emmanuele Bassi
74a27bbb1c docs: Documentation fixes
Let's see if we can get a 100% coverage for Clutter too.
2010-03-02 11:12:32 +00:00
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
64c1294cc2 x11 tfp: Plug a leak
Destroy the dummy XImage we create even on success.

http://bugzilla.openedhand.com/show_bug.cgi?id=1918

Based on a patch by: Carlos Martín Nieto <carlos@cmartin.tk>

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-01-05 14:22:35 +00:00
Neil Roberts
7a011af974 docs: Fix the 'Since' annotation for some functions
The 'Since' annotation needs to have a colon after it or gtk-doc won't
pick it up.
2009-11-19 11:51:21 +00:00
Owen W. Taylor
894fe4ba93 Always create the Damage object for ClutterX11TexturePixmap auto updates
If clutter_x11_texture_set_window() was called after
clutter_x11_texture_pixmap_set_automatic(), then the Damage object would
not be properly created so updates to the window were ignored.

Refactor creation of the damage object to a separate function, and
call it from clutter_x11_texture_set_window() and clutter_x11_texture_set_pixmap()
as appropriate. Addition and removal of the filter function is made
conditional on priv->damage to make free_damage_resources() cleanly
idempotent.

See: http://bugzilla.gnome.org/show_bug.cgi?id=587189 for the original
bug report.

http://bugzilla.openedhand.com/show_bug.cgi?id=1710

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2009-07-27 10:49:38 +01:00
Owen W. Taylor
795e005566 Fix handling of not-visible texture pixmaps
If we have an not-visible texture pixmap, we need to:

 - Still update it if it is realized, since it won't be
   updated when shown. And it might be also be cloned.

 - Queue a redraw if even if not visible, since it
   it might be cloned.

http://bugzilla.openedhand.com/show_bug.cgi?id=1647

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2009-06-15 11:29:37 +01:00
Owen W. Taylor
4dcd5f6134 Use correct texture format for pixmap textures and FBO's
RGBA data in X pixmaps and in FBOs is already premultiplied; use
the right format when creating cogl textures.

http://bugzilla.openedhand.com/show_bug.cgi?id=1406

Signed-off-by: Robert Bragg <robert@linux.intel.com>
2009-06-11 14:17:51 +01:00
Owen W. Taylor
d28c9e5db1 Remove unnecessary setting of CLUTTER_ACTOR_REALIZED flag
An implementaton of realize() never needs to set the
CLUTTER_ACTOR_REALIZED flag, though it can unset the flag if
things fail unexpectedly. (Previously, stage backend implementations
had to do this since clutter_actor_realize() wasn't used; this
is no longer the case.)

http://bugzilla.openedhand.com/show_bug.cgi?id=1634

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2009-06-08 11:07:33 +01:00
Robert Bragg
1d2ac51ea3 [x11-texture-pixmap] Fixes a reported lockup due to an undesireable X server grab
A lockup was reported by fargoilas on #clutter and removing the server grab in
clutter_x11_texture_pixmap_sync_window fixed the problem.

We were doing an x server grab to guarantee that if the XGetWindowAttributes
request reported that our redirected window was viewable then we would also
be able to get a valid pixmap name.  (the composite protocol says it's an
error to request a name for a window if it's not viewable) Without the grab
there would be a race condition.

Instead we now handle error conditions gracefully.
2009-04-22 13:43:53 +01:00
Emmanuele Bassi
7d8da0e830 [docs] Remove unused arguments
The documentation for some X11TexturePixmap method does not reflect
the actual API.
2009-03-18 17:07:50 +00:00
Tomas Frydrych
e8ef5153b1 Fix clutter_x11_texture_pixmap_get/set_property() following change of PROP_WINDOW type.
PROP_WINDOW is now gulong, so we need to use appropriate GValue accessors.
2009-02-02 07:37:08 +00:00
Owen W. Taylor
b716d32000 Fix properties that have X11 types to be 'long'
While X11 Pixmap and Window types only have 32-bits of data, they
are actually 'unsigned long'. Change the "window" and "pixmap"
property of ClutterX11TexturePixmaps to be ulong.

This fixes 64-bit bugs where ClutterGLXTexturePixmap passed a
reference to Pixmap to g_object_get("pixmap", &pixmap, ...);

http://bugzilla.openedhand.com/show_bug.cgi?id=1405

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2009-01-16 23:44:32 +00:00
Matthew Allum
c7c5cf9bd4 2008-11-07 Matthew Allum <mallum@linux.intel.com>
* clutter/clutter-actor.c:
        * clutter/clutter-actor.h:
        * clutter/clutter-clone-texture.c:
        * clutter/clutter-private.h:
        * clutter/clutter-texture.c:
        * clutter/x11/clutter-x11-texture-pixmap.c:

        Attempt to lower overhead of updating TFP's (particularly mipmaped).
        Compresses mipmap updates only for visible TFPs.
        Avoiding updates for non visible TFP's whilst keeping visible
        clones working ok.
2008-11-07 16:31:56 +00:00
Tomas Frydrych
8be7e29a6b 2008-09-16 Tomas Frydrych <tf@linux.intel.com>
* clutter/glx/clutter-glx-texture-pixmap.c:
	    * clutter/x11/clutter-x11-texture-pixmap.c:
	    TFP resyncing on MapNotify/ConfigureNotify (bug  1020; patch by
	    Andy Wingo <wingo@pobox.com>).
2008-09-16 11:50:38 +00:00
Matthew Allum
d5369aa9bf 2008-07-13 Matthew Allum <mallum@openedhand.com>
* clutter/x11/clutter-x11-texture-pixmap.c:
        Call XSync in unredirect X error trap (Thanks to Andy Wingo)
2008-07-13 22:54:19 +00:00
Matthew Allum
0a1ad0342e 2008-07-07 Matthew Allum <mallum@openedhand.com>
Bug 1016 - Changing window-redirect-automatic property after
                   creating ClutterX11TexturePixmap doesn't work.

        * clutter/x11/clutter-x11-texture-pixmap.c:
        (clutter_x11_texture_pixmap_set_window):
        Sync up redirection prop correctly (Jason Tackaberry)
2008-07-07 22:28:13 +00:00
Matthew Allum
5beb8b7779 2008-06-30 Matthew Allum <mallum@openedhand.com>
Bug 1008 - tfp still a bit borked

        * clutter/x11/clutter-x11-texture-pixmap.c:
        Fix from Andy Wingo for sync_window borkage
2008-06-30 22:00:49 +00:00
Matthew Allum
7d59aa3da0 2008-06-30 Matthew Allum <mallum@openedhand.com>
Bug 1007 - Fix TFP fallback mechanism

        * clutter/glx/clutter-glx-texture-pixmap.c:
        * clutter/x11/clutter-x11-texture-pixmap.c:
        Add some extra safety to glx pixmap creations and tidy up some notes.
        Patch from Gwenole Beauchesne.
2008-06-30 16:06:36 +00:00
Matthew Allum
ac02680447 2008-06-30 Matthew Allum <mallum@openedhand.com>
Bug 997 - automatic updates not working for named TFP pixmaps,
                  at least in x11

        * clutter/glx/clutter-glx-texture-pixmap.c:
        * clutter/glx/clutter-glx-texture-pixmap.h:
        * clutter/x11/clutter-backend-x11.c:
        * clutter/x11/clutter-x11-texture-pixmap.c:
        * clutter/x11/clutter-x11-texture-pixmap.h:
        * clutter/x11/clutter-x11.h:
        * configure.ac:
        * tests/test-pixmap.c:
        Rework Andy Wingos patch a little adding more safety for now also
        handling redirect Windows (as well as pixmaps)
2008-06-30 14:36:49 +00:00
Emmanuele Bassi
8f013e1b22 Update svn:ignore property 2008-06-10 16:49:39 +00:00
Matthew Allum
437fa9239f 2008-06-03 Matthew Allum <mallum@openedhand.com>
* clutter/glx/clutter-glx-texture-pixmap.c:
        Dont always fallback to x11 (slow) updates for a single
        failed pixmap.
        Minor cleanups.
        * clutter/x11/clutter-x11-texture-pixmap.c:
        Move shm allocation to only area updates.
2008-06-03 16:25:17 +00:00
Matthew Allum
f360f81f22 2008-05-12 Matthew Allum <mallum@openedhand.com>
* clutter/x11/clutter-x11-texture-pixmap.c:
        * configure.ac:
        * tests/Makefile.am:
        Remove the XComposite dep from Clutter itself, just use
        in test-pixmap (if available)
2008-05-12 16:22:16 +00:00
Matthew Allum
0782e7d635 2008-05-06 Matthew Allum <mallum@openedhand.com>
* clutter/glx/clutter-glx-texture-pixmap.c:
        * clutter/x11/clutter-x11-texture-pixmap.c:
        More cleanups, safety additions.
2008-05-06 19:57:05 +00:00
Robert Bragg
108bbe7474 2008-04-30 Robert Bragg <bob@openedhand.com>
* clutter/clutter/x11/clutter-x11-texture-pixmap.c:
	In _update_area_real with depth=16 we weren't setting up the alpha
	channel.
2008-04-30 14:58:25 +00:00
Matthew Allum
ca3074f772 2008-04-29 Matthew Allum <mallum@openedhand.com>
* clutter/glx/Makefile.am:
        * clutter/glx/clutter-glx-texture-pixmap.c:
        * clutter/glx/clutter-glx-texture-pixmap.h:
        * clutter/x11/Makefile.am:
        * clutter/x11/clutter-x11-texture-pixmap.c:
        * tests/test-pixmap.c:
        Commit newer x11 texture pixmap stuff (optionally using SHM).
        Also seemingly still broken overhauled glx-texture-pixmap
        (code by Robert and myself)

* configure.ac:
        Minor formatting change.
2008-04-29 16:30:47 +00:00
Robert Bragg
c90df4d4a0 2008-04-29 Robert Bragg <bob@o-hand.com>
* clutter/x11/clutter-x11-texture-pixmap.c:
	In clutter_x11_texture_pixmap_set_pixmap, dont assume that the actor
	size should be changed to match the size of the pixmap.
2008-04-29 13:51:25 +00:00