Commit Graph

91 Commits

Author SHA1 Message Date
Robert Bragg
ad398d583b glx: Mark stage clip initialized even for NULL user clip
If a NULL clip is passed to clutter_stage_glx_add_redraw_clip then we
update the redraw clip to have width of 0, but we weren't setting
stage_glx->initialized_redraw_clip = TRUE. This could result in a full,
unclipped stage redraw being reduced to a clipped redraw.
2010-09-13 18:18:35 +01:00
Alexandros Frantzis
12e58c7813 Hide internal glx and egl(x) backend symbols.
The glx and egl(x) backends export some internal symbols. Hide these
symbols (using '_' prefix) to reduce ABI differentiation between the
glx and eglx flavours.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2267

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-08-23 11:49:07 +01:00
Emmanuele Bassi
1943b8e544 glx: Depend on libdrm
DRM is available on more platforms than Linux (e.g. kFreeBSD), but
Clutter currently FTBFS there because of not being an alternative to
the __linux__ code (where it should be HAVE_DRM).

Instead of copying the DRM data structures, we should use libdrm when
falling back to directly requesting to wait for the vblank.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2225

Based on a patch by: Emilio Pozuelo Monfort <pochu27@gmail.com>
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-08-09 11:29:03 +01:00
Emmanuele Bassi
609560b1cb glx: Unconditionally select X11/GLX events
Currently, we select input events and GLX events conditionally,
depending on whether the user has disabled event retrieval.

We should, instead, unconditionally select input events even with event
retrieval disabled because we need to guarantee that the Clutter
internal state is maintained when calling clutter_x11_handle_event()
without requiring applications or embedding toolkits to select events
themselves. If we did that, we'd have to document the events to be
selected, and also update applications and embedding toolkits each time
we added a new mask, or a new class of events - something that's clearly
not possible.

See:

  http://bugzilla.clutter-project.org/show_bug.cgi?id=998

for the rationale of why we did conditional selection. It is now clear
that a compositor should clear out the input region, since it cannot
assume a perfectly clean slate coming from us.

See:

  http://bugzilla.clutter-project.org/show_bug.cgi?id=2228

for an example of things that break if we do conditional event
selection on GLX events. In that specific case, the X11 server ≤ 1.8
always pushed GLX events on the queue, even without selecting them; this
has been fixed in the X11 server ≥ 1.9, which means that applications
like Mutter or toolkit integration libraries like Clutter-GTK would stop
working on recent Intel drivers providing the GLX_INTEL_swap_event
extension.

This change has been tested with Mutter and Clutter-GTK.
2010-08-03 16:11:52 +01:00
Nate Stedman
fff5558ad2 Fixes build with GLX on Mac OS X.
Moves preprocessor #ifdef __linux_ above else statement, avoiding the
lack of an else block if __linux__ is not defined.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2212

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-07-15 00:31:23 +01:00
Robert Bragg
56315d92bd stage-glx: Never promote clipped redraws to full redraws.
When clipped redraws were first supported in Clutter a heuristic was
added to promote tall clipped redraws into full redraws due to a concern
that using glXCopySubBuffer for tall rectangles would block the GPU for
too long waiting for the vtrace to be in a suitable position so that
tearing isn't seen. We've so far been unable to measure any impact from
this blocking even with full height windows so we are removing the
arbitrary threshold of 300px that was originally "plucked out of thin
air".

http://bugzilla.o-hand.com/show_bug.cgi?id=2136
2010-06-16 01:04:35 +01:00
Robert Bragg
30296a3307 backend-glx: Avoid vblank waits/glFinish calls when throttling blits
If we have the GLX_SGI_video_sync extension then it's possible to always
keep track for the video sync counter each time we call glXSwapBuffers
or do a sub stage blit. This then allows us to avoid waiting before
issuing a blit if we can see that the counter has already progressed.

Also since we expect that glXCopySubBuffer is synchronized to the vblank
we don't need to use glFinish () in conjunction with the vblank wait
since the vblank wait's only purpose is to add a delay.
2010-06-09 02:11:17 +01:00
Robert Bragg
f37de23dec backend-glx: Make sure to throttle sub region blits
Neither glXCopySubBuffer or glBlitFramebuffer are integrated with the
swap interval of a framebuffer so that means when we do partial stage
updates (as Mutter does in response to window damage) then the blits
aren't throttled which means applications that throw lots of damage
events at the compositor can effectively cause Clutter to run flat out
taking up all the system resources issuing more blits than can even be
seen.

This patch now makes sure we use the GLX_SGI_video_sync or a
DRM_VBLANK_RELATIVE ioctl to throttle blits to the vblank frequency as
we do when using glXSwapBuffers.
2010-06-09 02:10:08 +01:00
Adel Gadllah
630a2c5edc backend-glx: Provide copy_sub_buffer fallback
Currently glXCopySubBufferMESA is used for sub stage redraws, but in case
a driver does not support GLX_MESA_copy_sub_buffer we fall back to redrawing
the complete stage which isn't really optimal.

So instead to directly fallback to complete redraws try using GL_EXT_framebuffer_blit
to do the BACK to FRONT buffer copies.

http://bugzilla.openedhand.com/show_bug.cgi?id=2128
2010-06-09 02:10:08 +01:00
Owen W. Taylor
2fc8ecdb92 glx: Clean up the clip area conditions
Move the size check after the NULL check, add the clip height into the
check logic and fix up the comment.

http://bugzilla.openedhand.com/show_bug.cgi?id=2040

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-03-19 18:23:03 +00:00
Emmanuele Bassi
a39cef41b8 glx: Do not access stage_clip without checking it
The stage_clip parameter for add_redraw_clip() can be NULL, so we need
to check before accessing its members.
2010-03-19 11:41:12 +00:00
Owen W. Taylor
d21b7522f8 Fix errors in keeping track of the stage bounding rectangle
* Add new clutter_geometry_union(), because writing union intersection
  is harder than it looks. Fixes two problems with the inline code in
  clutter_stage_glx_add_redraw_clip().

  1) The ->x and ->y of were reassigned to before using them to
     compute the new width and height.
  2) since ClutterGeometry has unsigned width, x + width is unsigned,
     and comparison goes wrong if either rectangle has a negative
     x + width. (We fixed width for GdkRectangle to be signed for GTK+-2.0,
     this is a potent source of bugs.)

* Use in clutter_stage_glx_add_redraw_clip()

* Account for the case where the incoming rectangle is empty, and don't
  end up with the stage being entirely redrawn.

* Account for the case where the stage already has a degenerate
  width and don't end up with redrawing only the new rectangle and not
  the rest of the stage.

The better fix here for the second two problems is to stop using a 0
width to mean the entire stage, but this should work for now.

http://bugzilla.openedhand.com/show_bug.cgi?id=2040

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-03-19 10:29:53 +00:00
Emmanuele Bassi
54504b7ac4 glx: Remove unnecessary call to create_stage()
If we are in the stage realization sequence we already have a GLX
context set in the backend; there is no need to call create_backend().
2010-03-17 17:41:52 +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
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
Chris Lord
2fcb644e4f [stage] Fix some races to do with window resizing
When we resize, we relied on the stage's allocate to re-initialise the
GL viewport. Unfortunately, if we resized within Clutter, the new size
was cached before the window is actually resized, so glViewport wasn't
being called after resizing (some of the time, it's a race condition).

Change the way resizing works slightly so that we only resize when the
geometry size doesn't match our preferred size, and queue a relayout on
ConfigureNotify so the glViewport gets called.

Also change window creation slightly so that setting the size of a
window before it's realized works correctly.
2010-02-15 18:56:50 +00:00
Robert Bragg
5d702853b8 glx backend: Adds support for GLX_INTEL_swap_event
If your OpenGL driver supports GLX_INTEL_swap_event that means when
glXSwapBuffers is called it returns immediatly and an XEvent is sent when
the actual swap has finished.

Clutter can use the events that notify swap completion as a means to
throttle rendering in the master clock without blocking the CPU and so it
should help improve the performance of CPU bound applications.
2010-02-09 22:19:41 +00:00
Robert Bragg
848db1ee4c glx backend: when running with GLX 1.3 then create GLXWindows for stages
Some extensions only support GLX versions > 1.3 and may not support
old style X Windows as GLXDrawables, so we now create GLXWindows for
stages when possible.
2010-02-09 22:19:41 +00:00
Chris Lord
c82c94e620 [stage-x11] Set the default size differently
We want to set the default size without triggering the layout machinary,
so change the window creation process slightly so we start with a
640x480 window.
2010-02-07 19:17:43 +01:00
Emmanuele Bassi
6fbed66add Delay default stage creation
The default stage creation should be delayed as much as possible,
ideally at the end of the init() process.
2010-02-03 16:34:27 +00:00
Emmanuele Bassi
e6ca2d891a glx: Always request an ARGB visual
When requesting the GLXFBConfig for creating the GLX context, we should
always request one that links to an ARGB visual instead of a plain RGB
one.

By using an ARGB visual we allow the ClutterStage:use-alpha property to
work as intended when running Clutter under a compositing manager.

The default behaviour of requesting an ARGB visual can be disabled by
using the:

  CLUTTER_DISABLE_ARGB_VISUAL

Environment variable.
2009-12-01 16:25:54 +00:00
Robert Bragg
3187e19642 [x11 backend] remove data duplicated between backends and stages
Make backends the canonical point of reference for the xdisplay, the xscreen
number, the x root window and the xvisinfo for creating foreign stages.
2009-10-16 18:58:48 +01:00
Robert Bragg
15d7a86621 [backends] Remove the idea of offscreen stages from all backends
The only backend that tried to implement offscreen stages was the GLX backend
and even this has apparently be broken for some time without anyone noticing.

The property still remains and since the property already clearly states that
it may not work I don't expect anyone to notice.

This simplifies quite a bit of the GLX code which is very desireable from the
POV that we want to start migrating window system code down to Cogl and the
simpler the code is the more straight forward this work will be.

In the future when Cogl has a nicely designed API for framebuffer objects then
re-implementing offscreen stages cleanly for *all* backends should be quite
straightforward.
2009-10-16 18:58:47 +01:00
Emmanuele Bassi
6988744db7 [stage] Rework the Stage implementation class
Instead of using ClutterActor for the base class of the Stage
implementation we should extend the StageWindow interface with
the required bits (geometry, realization) and use a simple object
class.

This require a wee bit of changes across Backend, Stage and
StageWindow, even though it's mostly re-shuffling.

First of all, StageWindow should get new virtual functions:

  * geometry:
    - resize()
    - get_geometry()

  * realization
    - realize()
    - unrealize()

This covers all the bits that we use from ClutterActor currently
inside the stage implementations.

The ClutterBackend::create_stage() virtual function should create
a StageWindow, and not an Actor (it should always have been; the
fact that it returned an Actor was a leak of the black magic going
on underneath). Since we never guaranteed ABI compatibility for
the Backend class, this is not a problem.

Internally to ClutterStage we can finally drop the shenanigans of
setting/unsetting actor flags on the implementation: if the realization
succeeds, for instance, we set the REALIZED flag on the Stage and
we're done.

As an initial proof of concept, the X11 and GLX stage implementations
have been ported to the New World Order(tm) and show no regressions.
2009-09-08 10:52:58 +01:00
Matthew Allum
1aa8c89f2c [XInput] Get XInput working again.
Check for distros shipping out of sync header vs libXi,
call in g_type_init() in test-devices, fix ifdef so
XInput events get correctly selected.
2009-06-17 15:09:16 +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
Emmanuele Bassi
e4ff24bcff [x11] Rework map/unmap and resizing
The mapping and unmapping of the X11 stage implementation is
a bit bong. It's asynchronous, for starters, when it really
can avoid it by tracking the state internally.

The ordering of the map/unmap sequence is also broken with
respect to the resizing.

By tracking the state internally into StageX11 we can safely
remove the MapNotify and UnmapNotify X event handling.

In theory, we should use _NET_WM_STATE a lot more, and reuse
the X11 state flags for fullscreening as well.
2009-06-04 16:30:32 +01:00
Emmanuele Bassi
aa1246e891 [backend] Abstract the GL context creation
This is the another step into abstracting the backend operations
that are currently spread all across the board back into the
backend implementations where they belong.

The GL context creation, for instance, is demanded to the stage
realization which makes it a critical path for every operation
that is GL-context bound. This usually does not make any difference
since we realize the default stage, but at some point we might
start looking into avoiding the default stage realization in order
to make the Clutter startup faster.

It also makes the code maintainable because every part is self
contained and can be reworked with the minimum amount of pain.
2009-05-13 22:21:48 +01:00
Emmanuele Bassi
e59a19bd03 [x11] Abstract XVisualInfo creation
The XVisualInfo for GL is created when a stage is being realized.
When embedding Clutter inside another toolkit we might not want to
realize a stage to extract the XVisualInfo, then set the stage
window using a foreign X Window -- which will cause a re-realization.

Instead, we should abstract as much as possible into the X11 backend.

Unfortunately, the XVisualInfo for GL is requested using GLX API; for
this reason we have to create a ClutterBackendX11 method that we
override inside the ClutterBackendGLX implementation.

This also allows us to move a little bit of complexity from out of
the stage realization, which is currently a very delicate and hard
to debug section.
2009-05-13 21:49:45 +01:00
Emmanuele Bassi
0b7e459d48 Add more debugging notes 2009-05-11 12:45:33 +01:00
Emmanuele Bassi
9582fddb24 [x11] Do not needlessly check XVisualInfo
Since we are destroying any previously set VisualInfo we keep we know
for sure that stage->xvisinfo is going to be None; hence, no reason to
check this condition.
2009-05-11 12:45:33 +01:00
Havoc Pennington
125bded814 Enforce invariants on mapped, realized, visibility states
Bug 1138 - No trackable "mapped" state

* Add a VISIBLE flag tracking application programmer's
  expected showing-state for the actor, allowing us to
  always ensure we keep what the app wants while tracking
  internal implementation state separately.

* Make MAPPED reflect whether the actor will be painted;
  add notification on a ClutterActor::mapped property.
  Keep MAPPED state updated as the actor is shown,
  ancestors are shown, actor is reparented, etc.

* Require a stage and realized parents to realize; this means
  at realization time the correct window system and GL resources
  are known. But unparented actors can no longer be realized.

* Allow children to be unrealized even if parent is realized.
  Otherwise in effect either all actors or no actors are realized,
  i.e. it becomes a stage-global flag.

* Allow clutter_actor_realize() to "fail" if not inside a toplevel

* Rework clutter_actor_unrealize() so internally we have
  a flavor that does not mess with visibility flag

* Add _clutter_actor_rerealize() to encapsulate a somewhat
  tricky operation we were doing in a couple of places

* Do not realize/unrealize children in ClutterGroup,
  ClutterActor already does it

* Do not realize impl by hand in clutter_stage_show(),
  since showing impl already does that

* Do not unrealize in various dispose() methods, since
  ClutterActor dispose implementation already does it
  and chaining up is mandatory

* ClutterTexture uses COGL while unrealizable (before it's
  added to a stage). Previously this breakage was affecting
  ClutterActor because we had to allow realize outside
  a stage. Move the breakage to ClutterTexture, by making
  ClutterTexture just use COGL while not realized.

* Unrealize before we set parent to NULL in clutter_actor_unparent().
  This means unrealize() implementations can get to the stage.
  Because actors need the stage in order to detach from stage.

* Update clutter-actor-invariants.txt to reflect latest changes

* Remove explicit hide/unrealize from ClutterActor::dispose since
  unparent already forces those
  Instead just assert that unparent() occurred and did the right thing.

* Check whether parent implements unrealize before chaining up
  Needed because ClutterGroup no longer has to implement unrealize.

* Perform unrealize in the default handler for the signal.
  This allows non-containers that have children to work properly,
  and allows containers to override how it's done.

* Add map/unmap virtual methods and set MAPPED flag on self and
  children in there. This allows subclasses to hook map/unmap.
  These are not signals, because notify::mapped is better for
  anything it's legitimate for a non-subclass to do.

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2009-04-24 15:27:19 +01:00
Havoc Pennington
08932584b5 Virtualize GL matrix operations and use a client-side matrix when GL is indirect
This is useful because sometimes we need to get the current matrix, which
is too expensive when indirect rendering.

In addition, this virtualization makes it easier to clean up the API in
the future.
2009-03-12 18:32:45 +00:00
Neil Roberts
5d6a11e1bf Emit CLUTTER_LEAVE events when the pointer leaves the stage
Bug 1178 - No enter / leave events on actors when pointer leaves the
           stage window

The patch is mostly thanks to Johan Bilien with small modifications
based on suggestions by Owen Taylor.

The X11 backend now listens for enter and leave notifications. Leave
notifications get translated directly to a CLUTTER_LEAVE
event. Clutter can detect these special events because the source
actor is NULL in which case it sets the source actor to the last known
actor and then sets the last known actor to NULL.

Enter notifications just get translated to CLUTTER_MOTION events which
will cause Clutter to generate an enter event through the usual code
path.
2009-02-16 12:46:36 +00:00
Neil Roberts
6dac43ddeb Bug 1145 - Flicker on resize the window
* clutter/glx/clutter-stage-glx.c (clutter_stage_glx_realize):
	Don't set a backing pixel on the X window. Otherwise when the
	window resizes it will flicker when X paints the background
	immediatly before Clutter repaints the whole stage.
2008-09-17 13:25:50 +00:00
Matthew Allum
be160d971a 2008-07-01 Matthew Allum <mallum@openedhand.com>
* clutter/glx/clutter-stage-glx.c:
        * clutter/x11/clutter-backend-x11.c:
        * clutter/x11/clutter-backend-x11.h:
        * clutter/x11/clutter-event-x11.c:
        * clutter/x11/clutter-x11.h:
        * tests/test-devices.c:
        Disable use of XInput and add an explicit clutter_x11_enable_xinput
        to enable it.
        Also fix up the x11 pre-init calls to not need g_type_init.
2008-07-01 13:41:23 +00:00
Øyvind Kolås
5525d0cad7 Disable XInput handling for keyboard events, re-enabling key press and
release events when pointer is outside window as well as re-enabling
keyrepeat.
* clutter/glx/clutter-stage-glx.c: (clutter_stage_glx_realize): select
for KeyPressMask and KeyReleaseMask even with XInput enabled.
* clutter/x11/clutter-backend-x11.c: (_clutter_x11_register_xinput): 
Disabled the XInput keyboard code paths (comments and #if 0's)
* clutter/x11/clutter-event-x11.c: (event_translate): always handle
keyboard events without regard to XInput.
2008-06-30 14:01:03 +00:00
Matthew Allum
03d7fdacd6 2008-06-27 Matthew Allum <mallum@openedhand.com>
* clutter/cogl/gl/cogl.c:
        Temp workaround for 10.4 ATI card OSX folks, see #929
        (Tommi Komulainen)

        Bug 998 - clutter always captures X input events

* clutter/eglx/clutter-stage-egl.c:
        * clutter/glx/clutter-stage-glx.c:
When we disable X event retrival, dont still select for window
events.
2008-06-27 23:02:30 +00:00
Matthew Allum
b241481586 2008-06-23 Matthew Allum <mallum@openedhand.com>
* clutter/clutter-actor.c:
        * clutter/clutter-actor.h:
        * clutter/clutter-event.c:
        * clutter/clutter-event.h:
        * clutter/clutter-main.c:
        * clutter/clutter-main.h:
        * clutter/clutter-private.h:
        * clutter/eglx/clutter-stage-egl.c:
        * clutter/fruity/clutter-backend-fruity.c:
        * clutter/fruity/clutter-backend-fruity.h:
        * clutter/fruity/clutter-fruity.c:
        * clutter/glx/clutter-stage-glx.c:
        * clutter/x11/clutter-backend-x11.c:
        * clutter/x11/clutter-backend-x11.h:
        * clutter/x11/clutter-event-x11.c:
        * clutter/x11/clutter-stage-x11.h:
        * clutter/x11/clutter-x11.h:
        * configure.ac:
        * tests/Makefile.am:
        * tests/test-devices.c:
        Merge of 'xinput' branch giving initial basic support of
        multiple input devices.
2008-06-23 09:55:42 +00:00
Emmanuele Bassi
d141f781ec 2008-05-13 Emmanuele Bassi <ebassi@openedhand.com>
* clutter/glx/clutter-stage-glx.c:
	(clutter_stage_glx_unrealize): Move the shaders release from here...

	* clutter/glx/clutter-backend-glx.c:
	(clutter_backend_glx_dispose): ... to here. Shaders should be
	released when the GL context is being destroyed, and that only
	happens when the backend is being disposed, now that we support
	multiple stages.
2008-05-13 10:42:36 +00:00
Emmanuele Bassi
101a3cac4e 2008-05-12 Emmanuele Bassi <ebassi@openedhand.com>
Rework the stage wrapper/implementation relation: remove
	duplicated code and all the bookkeeping from the backends into
	ClutterStage whenever possible, to reduce the amount of	work a
	backend must do (and possibly get wrong). Thanks to Tommi
	Komulainen.

	* clutter/clutter-main.c:
	(clutter_init_with_args), (clutter_init): Realize the default
	stage after creation. The default stage is special, because we
	use it in the initialization sequence. This removes the burden
	from the backends and reduces the things a backend can get
	wrong.

	* clutter/clutter-stage.c:
	(clutter_stage_show): Make sure to realize the implementation if
	it hasn't been realized yet.

	(clutter_stage_realize): Set the REALIZED flag and call
	clutter_stage_ensure_current() if the implementation was
	successfully realized.

	(clutter_stage_unrealized): Call clutter_stage_ensure_current()
	on unrealize.

	* clutter/glx/clutter-backend-glx.c:
	(clutter_backend_glx_create_stage): Do not realize the stage anymore
	when creating it, and let the normal realization sequence take
	place.

	(clutter_backend_glx_ensure_context): Trap for X11 errors.

	* clutter/glx/clutter-stage-glx.c:
	(clutter_stage_glx_realize): Chain up to the X11 implementation
	so that we can set up the window state (title, cursor visibility)
	when we actually have a X window. Also, do not call
	clutter_stage_ensure_current(), and rely on the wrapper to do
	it for us. This means we can drop setting the REALIZED flag on
	the wrapper.

	(clutter_stage_glx_unrealize): Do not call
	clutter_stage_ensure_current() ourselves, and rely on the wrapper
	to do it for us.

	* clutter/x11/clutter-stage-x11.c:
	(set_wm_title),	(set_cursor_visible): Move the WM title and
	cursor visibility code inside their own functions.

	(clutter_stage_x11_realize): Set the window title and whether the
	cursor is visible or not after realizing the stage.

	(clutter_stage_x11_set_cursor_visible),
	(clutter_stage_x11_set_title): Call set_wm_title() and
	set_cursor_visible().

	(clutter_stage_x11_finalize): Free the title string.

	* clutter/x11/clutter-stage-x11.h: Save more of the stage state,
	so that we can set it even when the stage hasn't been realized
	yet.

	* clutter/eglnative/clutter-backend-egl.c:
	(clutter_backend_egl_create_stage):
	* clutter/eglnative/clutter-stage-egl.c:
	(clutter_stage_egl_unrealize),
	(clutter_stage_egl_realize): Update the eglnative backend.

	* clutter/eglx/clutter-backend-egl.c:
	(clutter_backend_egl_ensure_context),
	(clutter_backend_egl_create_stage):
	* clutter/eglx/clutter-stage-egl.c:
	(clutter_stage_egl_unrealize),
	(clutter_stage_egl_realize): Update the eglx backend.

	* clutter/sdl/clutter-backend-sdl.c:
	(clutter_backend_sdl_create_stage):
	* clutter/sdl/clutter-stage-sdl.c:
	(clutter_stage_sdl_realize): Update the sdl backend.

	* clutter/fruity/clutter-backend-fruity.c:
	(clutter_backend_fruity_create_stage):
	* clutter/sdl/clutter-stage-fruity.c:
	(clutter_stage_fruity_realize): Update the fruity backend.

	* tests/test-multistage.c (on_button_press): Bail out if
	clutter_stage_new() returns NULL.

	* HACKING.backends: Update backend writing documentation.
2008-05-12 15:26:37 +00:00
Emmanuele Bassi
6fa7aeef85 2008-05-12 Emmanuele Bassi <ebassi@openedhand.com>
* HACKING.backends: Update documentation.

	* clutter/glx/clutter-stage-glx.c:
	(clutter_stage_glx_realize): Avoid setting more flags than
	necessary.
2008-05-12 10:17:55 +00:00
Neil Roberts
6409b1adeb Merged clutter-ivan branch into trunk.
svn merge \
 https://svn.o-hand.com/repos/clutter/trunk/clutter@2509 \
 https://svn.o-hand.com/repos/clutter/branches/clutter-ivan@HEAD
2008-04-25 13:37:36 +00:00
Emmanuele Bassi
8867c1bae5 2008-04-11 Emmanuele Bassi <ebassi@openedhand.com>
* README: Add a note about the Shader API changes.

	* clutter/clutter-deprecated.h: Add deprecation symbols.

	* clutter/clutter-shader.[ch]: Rename the :bound read-only
	property to :compiled. Also rename clutter_shader_bind()
	and clutter_shader_is_bound() to clutter_shader_compil() and
	clutter_shader_is_compiled(), respectively.

	* clutter/glx/clutter-stage-glx.c:
	(clutter_stage_glx_unrealize): Update after
	clutter_shader_release_all() rename.

	* tests/test-shader.c (button_release_cb), (main): Update.
2008-04-11 12:00:50 +00:00
Emmanuele Bassi
7fd5d5d10d 2008-04-04 Emmanuele Bassi <ebassi@openedhand.com>
* clutter/clutter-backend.c: Add more debug messages

	* clutter/clutter-stage.h:
	* clutter/clutter-stage.c:
	(clutter_stage_is_default): Add a function to check if the
	stage is the default one.

	* clutter/glx/clutter-backend-glx.c:
	* clutter/glx/clutter-stage-glx.c:
	* clutter/x11/clutter-stage-x11.c: Keep the stage wrapper
	and implementation flags in sync, to ensure that the GL
	context is always set.
2008-04-04 17:26:26 +00:00
Emmanuele Bassi
f859135082 2008-04-04 Emmanuele Bassi <ebassi@openedhand.com>
Bug #864 - Allow instantiating and subclassing of ClutterStage

	* clutter/Makefile.am: Add clutter-stage-window.[ch]

	* clutter/clutter-stage-manager.c:
	(_clutter_stage_manager_remove_stage): Do not warn if removing
	a stage we don't manage, as we might be invoked multiple times
	during a ClutterState dispose sequence.

	* clutter/clutter-actor.c:
	* clutter/clutter-backend.[ch]:
	* clutter/clutter-main.c:
	* clutter/clutter-private.h:
	* clutter/clutter-stage.[ch]: Make ClutterStage a proxy actor,
	with a private actor implementing the ClutterStageWindow
	interface for handling the per-backend realization, painting
	and unrealization, plus all the windowing system abstraction.

	* clutter/x11/clutter-event-x11.c:
	* clutter/x11/clutter-stage-x11.[ch]: Port the X11 backend
	to the new backend and stage API and semantics.

	* clutter/glx/clutter-backend-glx.c:
	* clutter/glx/clutter-stage-glx.c: Port the GLX backend to
	the new backend and stage API and semantics.

	* clutter/eglx/clutter-backend-egl.[ch]:
	* clutter/eglx/clutter-stage-egl.[ch]: Port the EGLX backend
	to the new backend and stage API and semantics (untested).

	* tests/test-multistage.c (on_button_press): Rename
	clutter_stage_create_new() to clutter_stage_new().
2008-04-04 15:02:11 +00:00
Matthew Allum
c158a93a84 2008-04-01 Matthew Allum <mallum@openedhand.com>
* clutter/clutter-backend.c:
        * clutter/glx/clutter-backend-glx.c:
        * clutter/glx/clutter-stage-glx.c:
        Allow NULL to be passed to _clutter_backend_ensure_context
        which essentially clears GL context. This is hooked into stage
        unrealisation.  Isn't yet quite bulletproof.
        Fixes issues with gtk-embed crasher (thanks to Neil).
2008-04-01 14:04:46 +00:00
Matthew Allum
244eedb5bd 2008-03-31 Matthew Allum <mallum@openedhand.com>
* README:
        Add notes on new multistage feature.

        * clutter/clutter-stage-manager.c:
        Dont ref contained stages.

        * clutter/clutter-stage.c:
        Automatically remove stage from stage manager on finalisation.
        Cleans up warnings when a stage is destroyed.

        * clutter/clutter-backend.h:
        * clutter/glx/clutter-backend-glx.c:
        Minor formatting cleanups.

        * clutter/glx/clutter-stage-glx.c:
        * configure.ac:
        * clutter/clutter-version.h.in:
        Add a general CLUTTER_STAGE_TYPE define, should be useful for
        evntual stage subclassing and creating with g_object_new()
2008-03-31 17:15:02 +00:00
Matthew Allum
8847bcd195 2008-03-28 Matthew Allum <mallum@openedhand.com>
* clutter/Makefile.am:
        * clutter/clutter-actor.c:
        * clutter/clutter-actor.h:
        * clutter/clutter-backend.c:
        * clutter/clutter-backend.h:
        * clutter/clutter-debug.h:
        * clutter/clutter-event.c:
        * clutter/clutter-event.h:
        * clutter/clutter-feature.h:
        * clutter/clutter-group.h:
        * clutter/clutter-main.c:
        * clutter/clutter-main.h:
        * clutter/clutter-private.h:
        * clutter/clutter-stage.c:
        * clutter/clutter-stage.h:
        * clutter/clutter-stage-manager.c
        * clutter/clutter-stage-manager.h
        * clutter/clutter-types.h:
        * clutter/glx/clutter-backend-glx.c:
        * clutter/glx/clutter-backend-glx.h:
        * clutter/glx/clutter-stage-glx.c:
        * clutter/glx/clutter-stage-glx.h:
        * clutter/x11/clutter-backend-x11.c:
        * clutter/x11/clutter-backend-x11.h:
        * clutter/x11/clutter-event-x11.c:
        * clutter/x11/clutter-stage-x11.c:
        * clutter/x11/clutter-x11.h:
        * tests/Makefile.am:
        * tests/test-multistage.c:
        Initial commit of multi stage support (mostly a merge from the
        clutter-multistage branch).
        Note, this commit will break all backends except glx.
2008-03-28 22:50:55 +00:00
Robert Bradford
756d2223da 2008-01-31 Rob Bradford <rob@openedhand.com>
* clutter/glx/clutter-stage-glx.c:
	* clutter/glx/clutter-backend-glx.c:
	* clutter/glx/clutter-backend-glx.h:
	Fix formatting.
2008-01-31 23:10:30 +00:00