clutter-x11.h declares clutter_x11_set_display twice, which means code using
clutter doesn't compile cleanly with -Wredundant-decls.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
When processing a motion event, we need to spin the event loop two extra
times to ensure that any enter/leave events that might have been synthesized
are pumped through (otherwise they end up being pushed down the queue and
never processed).
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>
Since Clutter changed to using a layout scheme the handling_configure
flag no longer works because the allocate method is not invoked
immediately during the call to set_size from the ConfigureNotify
handler. However it is also no longer neccessary because the resizes
are effectively batched up until a relayout is run so it won't cause
an infinite loop of resize and notify events anyway.
Continuation of the fix in commit 00a3c69868.
Instead of using a separate flag for the resize process, just
delay the setting of the CLUTTER_ACTOR_SYNC_MATRICES flag on the
stage to the point when we receive a ConfigureNotify event from
X11.
This commit will break the stage embedding into other toolkits.
There is a race condition when we resize a stage before showing
it on X11.
The race goes like this:
- clutter_init() creates the default stage and realize it, which
will cause a 640x480 Window to be created
- call set_size(800, 600) on the stage will cause the Window to be
resized to 800x600
- call show() on the stage for the first time will cause COGL
to set up an 800 by 600 GL viewport
- the Window will be mapped, which will cause X to notify the
window manager that the Window should be resized to 800x600
- the window manager will approve the resize
- X resizes the drawable to 800x600
To fix the race, we need to defer COGL from setting up the viewport
until we receive a ConfigureNotify event and the X server has resized
the Drawable.
In order to defer the call to cogl_setup_viewport() we add a new
private flag, CLUTTER_STAGE_IN_RESIZE; the flag is checked whenever
we need to change the viewport size along with the SYNC_MATRICES
private flag. Thus, cogl_setup_viewport() will be called only if
SYNC_MATRICES is set and IN_RESIZE is not set.
Clutter has a set of command line options that are added to every
application by means of clutter_init() or by obtaining the Clutter
GOptionGroup and using g_option_context_parse(). Thus, every Clutter
application will automatically have an --help command line switch
showing the list of options and their description.
At the moment, Clutter does not enable localization of the help,
thus making it less than useful on non-English locales.
This patch enables the machinery to create a localization file and
load it when initializing Clutter, by means of the GLib macros and
locale.h API we already use.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
Instead of returning CLUTTER_X11_FILTER_CONTINUE always from
clutter_x11_handle_event() return CLUTTER_X11_FILTER_REMOVE if
the event was on a stage and translated to a ClutterEvent.
Signed-off-by: Emmanuele Bassi <ebassi@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.
Bug 1200 - Crash with invalid DISPLAY
* clutter/clutter-main.c: Use the ClutterBackend wrapper API
instead of directly checking the class structure.
* clutter/glx/clutter-backend-glx.c: Return the correct value
in case of failure.
* clutter/x11/clutter-backend-x11.c: Bail out if XOpenDisplay()
failed.
* clutter/clutter-main.c:
* clutter/clutter-main.h:
* clutter/clutter-private.h:
* clutter/x11/clutter-backend-x11.c:
(clutter_get_option_group_without_init):
Function to obtain clutter option group without opening display
(for use with foreign display and gtk_clutter_init). Bug 1033.
Stripped trailing whitespace.
* clutter/x11/clutter-backend-x11.c: Properly document the
usage of clutter_x11_set_display().
* clutter/x11/clutter-x11.h: clutter_x11_set_display() is
public API and should be declared in the header we install.
* 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>).
* 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.
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.
Bug 1000 - clutter-x11 should define gtypes for its enumerations
* clutter/x11/Makefile.am:
* clutter/x11/clutter-event-x11.c:
* clutter/x11/clutter-x11-enum-types.c.in:
* clutter/x11/clutter-x11-enum-types.h.in:
* clutter/x11/clutter-x11.h: Add the GTypes for the X11-specific
enumerations, so that they can be used by the bindings. (Andy
Wingo)
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)
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.
* clutter/clutter-backend.h:
* clutter/clutter-backend.c:
(clutter_backend_get_display_size): Add a function for getting the
display size out of the backend.
* clutter/clutter-stage.c:
(clutter_stage_allocate): When allocating on a backend with a
static stage, we simply ignore the passed box and override it with
the size of the display.
* clutter/eglnative/clutter-backend-egl.c:
(clutter_backend_egl_get_display_size),
(clutter_backend_egl_class_init): Implement get_display_size() by
returning the size of the EGL surface.
* clutter/fruity/clutter-backend-fruity.c:
(clutter_backend_egl_get_display_size),
(clutter_backend_egl_class_init): Ditto as above.
* clutter/x11/clutter-backend-x11.c:
(clutter_backend_x11_get_display_size),
(clutter_backend_x11_class_init): Implement get_display_size() by
returning the DisplayWidth and DisplayHeight of the current
screen.
* clutter/x11/clutter-event-x11.c (event_translate): Set the
event type explicitly in the union members as well for the
key events, like we do for all the other events.
Bug #815 - Split up request, allocation, and paint box
* clutter/clutter-actor.[ch]: Rework the size allocation,
request and paint area. Now ::request_coords() is called
::allocate(), and ::query_coords() has been split into
::get_preferred_width() and ::get_preferred_height(). See
the documentation and the layout test on how to implement
a container and layout manager with the new API. (#915,
based on a patch by Havoc Pennington, Lucas Rocha and Johan
Bilien)
* clutter/clutter-clone-texture.c: Port CloneTexture to
the new size negotiation API; it just means forwarding
the requests to the parent texture.
* clutter/clutter-deprecated.h: Add deprecated and replaced
API.
* clutter/clutter-entry.c: Port Entry to the new size
negotiation API.
* clutter/clutter-group.c: Port Group to the new size
negotiation API; the semantics of the Group actor do not
change.
* clutter/clutter-label.c: Port Label to the new size
negotiation API, and vastly simplify the code.
* clutter/clutter-main.[ch]: Add API for executing a
relayout when needed.
* clutter/clutter-private.h: Add new Stage private API.
* clutter/clutter-rectangle.c: Update the get_abs_opacity()
call to get_paint_opacity().
* clutter/clutter-stage.c:
(clutter_stage_get_preferred_width),
(clutter_stage_get_preferred_height),
(clutter_stage_allocate),
(clutter_stage_class_init): Port Stage to the new size
negotiation API.
* clutter/clutter-texture.c: Port Texture to the new size
negotiation API.
* clutter/clutter-types.h: Add ClutterRequestMode enumeration.
* clutter/x11/clutter-stage-x11.c: Port the X11 stage
implementation to the new size negotiation API.
* tests/Makefile.am: Add the layout manager test case.
* tests/test-opacity.c: Update.
* tests/test-project.c: Update.
* tests/test-layout.c: Test case for a layout manager implemented
using the new size negotiation API; the layout manager handles
both transformed and untransformed children.
Bug #950 - AltGr not handled
* clutter/osx/clutter-event-osx.c: (clutter_event_osx_translate):
* clutter/x11/clutter-event-x11.c: (translate_key_event):
* tests/test-events.c: (fill_keybuf), (input_cb):
Apply patch from Tommi Komulainen, fill the unicode_value attribute of
the ClutterKeyEvent struct. Also use XKeycodeToKeysym, as suggested in
bug #950, comment #2
* 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.
* clutter/glx/Makefile.am:
* clutter/x11/Makefile.am:
Install glx and x11 specific includes into clutter/glx and
clutter/x11 so that header files that include glx/*.h or x11/*.h
when installed.
* clutter/x11/clutter-backend-x11.c:
* clutter/clutter-event.h:
* clutter/clutter-feature.h:
* clutter/clutter-fixed.c:
* clutter/clutter-model.h: Fix documentation.
* clutter/eglnative/clutter-backend-egl.[ch]:
* clutter/eglnative/clutter-event-egl.c: Add the same solution
used for the SDL backend in order to get the time of an event.
This should fix the motion event throttling and the click count
on button press.
* tests/test-pixmap.c (create_pixmap), (main): Fix preprocessor
directives.
* clutter/x11/clutter-event-x11.c (event_translate): Remove the
cheap Expose event compression, as it seems to play games when a
composite manager is running. It's also not really needed, as
the redraw queue will avoid redraws too close to each other
anyway.
* clutter/x11/clutter-stage-x11.c:
(clutter_stage_x11_show), (clutter_stage_x11_hide): Do not chain
up just to set the flags. This fixes a critical warning coming
from ClutterActor::hide() default implementation.
* 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)
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.
* 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.
Work related to #873;
* clutter/glx/clutter-backend-glx.c:
* clutter/glx/clutter-backend-glx.h:
* clutter/x11/clutter-x11-texture-pixmap.c:
* clutter/x11/clutter-x11-texture-pixmap.h:
General cleanup of texture pixmap code, adding;
- Pixmap dimentions and depth now auto probed, read only props.
- More X safety traps
- Add support for optionally tracking damage and automatically
updating texture.
* clutter/glx/clutter-glx-texture-pixmap.c:
* clutter/glx/clutter-glx-texture-pixmap.h:
General cleanup and some safety additions. Needs more work so
'proper' subclass - dependent on new COGL.
* clutter/x11/clutter-backend-x11.c: (clutter_x11_remove_filter):
Invert g_return_if check.
* configure.ac:
Pull in XComposite and XDamage (at least for now)
* tests/Makefile.am:
* tests/test-pixmap.c:
Add a modified test from Johan for above.
* clutter/x11/clutter-backend-x11.c (clutter_backend_x11_dispose):
Call g_slist_foreach instead of iterating over the stage_manager
list manually when deleting stages. Otherwise the 'next' pointer
of the list node can get corrupted when the actor removes itself
from the list.
* clutter/clutter-stage.c (clutter_stage_dispose): Call
clutter_actor_unrealize in the dispose handler. This fixes
problems where the dispose handler for the ClutterStageWrapper
can't deselect the GL context until the stage is unrealized.
* 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.
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().
Applied patch from bug #810.
* clutter/x11/clutter-event-x11.c (event_translate): Set a flag
when resizing the stage from a ConfigureNotify event.
* clutter/x11/clutter-stage-x11.c
(clutter_stage_x11_request_coords): Don't try to resize the window
again if the flag is set.
(clutter_stage_x11_init): Added initialiser for the flag.
* clutter/x11/clutter-stage-x11.h (struct _ClutterStageX11): Added
the flag.
* clutter/glx/clutter-backend-glx.c:
(clutter_backend_glx_get_features): Assert if we don't have a
GL context here or if it's not matched to a drawable. Asserting
might seem too drastic, but if we don't have a valid GL context
here then Clutter will segfault anyway, and I'll take an assert()
over a hard to read, deep in GLX guts backtrace any day (and
twice on a monday).
* clutter/x11/clutter-backend-x11.c:
(clutter_backend_x11_get_features): No need for a variable here.
* clutter/x11/clutter-backend-x11.h:
* clutter/x11/clutter-event-x11.c:
* clutter/x11/clutter-x11.h:
(clutter_x11_handle_event):
(clutter_x11_disable_event_retrieval):
Functions to allow to hook into external XEvent retrieval (for
example when using clutter with gtk); NB: this API is tentative.
* clutter/x11/clutter-event-x11.c (event_translate): Ignore
PropertyNotify events if they don't match our window.
* clutter/x11/clutter-stage-x11.c:
(clutter_stage_x11_request_coords): Chain up to the parent's
request coords.
* clutter/x11/clutter-event-x11.c (event_translate): Ignore
ConfigureNotify events if we are painting on a foreign window.
* clutter/x11/clutter-stage-x11.c:
(clutter_stage_x11_request_coords): Reliquish control of the
window size, if we are painting on a foreign window. This fixes
the GtkClutterEmbed widget.
* clutter/x11/clutter-x11.h:
* clutter/x11/clutter-backend-x11.c:
(clutter_x11_set_display):
Function to set X display connection prior to calling
clutter_init(); stripped loads of trailing space.
* clutter/clutter-feature.h:
* clutter/clutter-texture.c:
* clutter/clutter-texture.h:
* clutter/cogl/cogl.h:
* clutter/cogl/gl/cogl.c:
* clutter/cogl/gles/cogl.c:
* tests/Makefile.am:
* tests/test.fbo.c:
Add initial support for FBO's in Clutter (OpenGL only so far).
See new clutter_texture_new_from_actor()
Initial implementation, needs work.
* clutter/x11/clutter-stage-x11.c:
(clutter_stage_x11_set_cursor_visible):
Fall back to again not relying on xfixes to hide cursor. *sigh*
* clutter/clutter-deprecated.h:
Add clutter_group_find_child_by_id
* Makefile.am: Use variables, instead of substitutions.
* clutter/clutter-private.h:
* clutter/clutter-main.h: Make clutter_do_event() public again,
as we need it in clutter-gtk.
* configure.ac:
* clutter/x11/Makefile.am:
* clutter/x11/clutter-x11.pc.in: Add a clutter-x11 pkg-config
file for clutter-gtk, as it depends on the X11 backend API, as
implemented by the GLX and EGLX backends.
* clutter/x11/clutter-event-x11.c (event_translate): Do not
propagate DestroyNotify events if the stage doesn't own the
window.
* tests/test-scale.c (main): Set values different from the default.
* clutter/clutter-actor.c:
(clutter_actor_real_show),
(clutter_actor_real_hide): Do not set the MAPPED flag on the actor
if it is a top-level one (like ClutterStage); the backends are
responsible for setting that flag, as it might be the result of an
asynchronous operation (e.g. on X11).
* clutter/eglnative/clutter-stage-egl.c:
(clutter_stage_egl_show),
(clutter_stage_egl_hide): Set/unset the CLUTTER_ACTOR_MAPPED flag
on show and hide respectively.
* clutter/osx/clutter-stage-osx.c:
(clutter_stage_osx_show),
(clutter_stage_osx_hide): Ditto as above.
* clutter/sdl/clutter-stage-sdl.c:
(clutter_stage_sdl_show),
(clutter_stage_sdl_hide): Ditto as above, plus chain up to the
parent class show/hide virtual functions.
* clutter/x11/clutter-event-x11.c (event_translate): Use the MapNotify
and UnmapNotify events to call the X11 stage map/unmap functions.
* clutter/x11/clutter-stage-x11.[ch]:
(clutter_stage_x11_set_fullscreen): Set the fullscreen_on_map flag
with the fullscreen value.
(clutter_stage_x11_map), (clutter_stage_x11_unmap): Set the MAPPED
flag on the stage actor and redraw; also, if the fullscreen_on_map
flag was set, call clutter_stage_fullscreen() as well. (#648)
* tests/Makefile.am:
* tests/test-fullscreen.c: Add a fullscreen test case for checking
whether fullscreen works on every backend/platform.
* clutter/clutter-actor.c (clutter_actor_destroy): Bail out
if clutter_actor_destroy() was called on the stage: the stage
is not for the user to destroy.
* clutter/x11/clutter-backend-x11.c:
* clutter/eglnative/clutter-backend-egl.c:
* clutter/sdl/clutter-backend-sdl.c:
* clutter/osx/clutter-backend-osx.c: Unset the top-level private
flag on the stage when disposing it, so the backends can safely
call clutter_actor_destroy().
* clutter/clutter-private.h: Tweak the private flags accessors,
to avoid the typecheck.
* clutter/Makefile.am:
* clutter/eglx/Makefile.am:
* clutter/eglx/clutter-backend-egl.c:
* clutter/eglx/clutter-backend-egl.h:
* clutter/eglx/clutter-eglx.h:
* clutter/eglx/clutter-event-egl.c:
* clutter/eglx/clutter-stage-egl.c:
* clutter/eglx/clutter-stage-egl.h:
* clutter/glx/Makefile.am:
* clutter/glx/clutter-backend-glx.c:
* clutter/glx/clutter-backend-glx.h:
* clutter/glx/clutter-event-glx.c:
* clutter/glx/clutter-glx.h:
* clutter/glx/clutter-stage-glx.c:
* clutter/glx/clutter-stage-glx.h:
* clutter/x11/Makefile.am:
* clutter/x11/clutter-backend-x11-private.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-stage-x11.h:
* clutter/x11/clutter-x11.h:
Create a new X11 backend class of which EGL and GLX 'real' backends
then subclass. Effectively shares all X11 code between both backends
avoids code duplication and brings many missing features to EGL X
backend. Requires some cleanup and testing. (#518)
* clutter/cogl/gles/cogl.c: (cogl_color):
Add define to use color4ub only if configure finds it.
If not fall back to old code.
* configure.ac:
Drop support for vincent checks.
Drop sdles backend.
Specifically check for color4ub call.
