The shm buffer format enum values were renamed and the explicitly
premultiplied format was dropped since it's now assumed if the buffer
has an alpha component then it's premultiplied.
Enclose the check inside a #ifdef CLUTTER_ENABLE_DEBUG ... #endif, so
that we can compile it out; also, use g_string_append() instead of the
g_string_append_printf() function, given that we're just concatenating
strings.
This function will call into the Wayland EGL platform API and resize the
surface that the window is using and update the internal dimensions for
framebuffer and viewport to reflect the change.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
The ::redraw virtual function was a throwback from olden times, and has
been thoroughly replaced by the equivalent vfunc on the StageWindow
interface. We can safely remove it, now, and simplify the flow of the
redraw code inside ClutterStage.
Semantic changes to Wayland means that we cannot rely on the compositor
setting a pointer buffer for us if set it to nil. The first part of fixing
this is to create an shm buffer containing the bytes for our cursor.
The best way to do this currently is to load the cursor from the well known
location where weston instals its cursor images. The code to implemente this
was derivedlifted from the Wayland backend in GTK+.
If the swap buffers notify mechanism is advertised then the crate
example will now register a callback for it and call g_poll with the
proper timeout from cogl_context_begin_idle instead of trying to
repaint continuously.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
Previously the swap event notification feature was only accessible as
a winsys feature using the semi-internal
cogl_clutter_winsys_has_feature. This just adds a feature ID for it so
it can also be accessed via cogl_has_feature.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
Currently, we're emitting the ClutterActor::destroy at the end of the
dispose implementation - right before we chain up to the parent
implementation.
The point of emission makes the ::destroy signal handlers able to just
use the actor pointer - as the actor state will have been mostly cleared
by the time application can run. This (undocumented) behaviour severely
limits the amount of things you can do inside a ::destroy signal
handler, thus making the ::destroy signal just a weird weak reference,
instead of a proper way to break application reference cycles.
Given that this change relaxes some of the conditions, this change
should be safe - obviously, if anything happens, we'll back it out; the
conformance and interactive tests confirm that, for common patterns of
usage, this change does not break existing code.
GLib has a nice, atomic object clearing function that allows us to drop
code looking like:
if (priv->object != NULL)
{
g_object_unref (priv->object);
priv->object = NULL;
}
from the ::dispose implementation.
Originally we decided to use #define tricks to rename all experimental
symbols so that they had an _EXP suffix so it would be a bit clearer for
those wanting to check for ABI changes that they shouldn't worry about
these experimental symbols.
We feel now though that the defines are a bit more hassle than they are
really worth, since they are one extra thing to remember when coding,
they make using gdb slightly more awkward since you have to use the real
symbol name to set breakpoints and we already have a mechanism for
declaring symbols as experimental via gtk-doc that can be used by anyone
wanting to check for ABI changes.
Instead of just using a script to remove all the #defines we are going
to go through them manually because we need to make sure the symbols
are marked as unstable via gtk-doc. This patch does a first batch of
define removals and in fact some of the symbols didn't have any
documentation at all so that needed to be added too.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
This workaround code has just been incrementally carried forward since
Cogl was integrated with Clutter but really we have no idea when this
code path was ever tested. Since the work around is from before the time
of the current Cogl developers we don't know anything about the
circumstances which led to this extreme workaround instead of pushing to
fix a driver.
It seems pretty likely we can push to fix any drm based drivers so
we're removing the workaround.
https://bugzilla.gnome.org/show_bug.cgi?id=667009
Reviewed-by: Neil Roberts <neil@linux.intel.com>
GCC will define __ARM_ARCH_4T__ when building with "-march=armv4t" so we
can check this to turn off the use of 'clz' instructions, which
otherwise would cause compile errors like "selected processor does not
support ARM mode `clz r3,r0'".
Signed-off-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Joshua Lock <josh@linux.intel.com>
Reviewed-by: Robert Bragg <robert@linux.intel.com>
Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
The aim is that it should be a requirement that all Cogl applications
hook their mainloops into Cogl so we should lead by examples. Most of
the examples now just call cogl_poll_get_info and then g_poll with a
zero timeout so that they can continue to constantly redraw.
The SDL example is a bit special because SDL makes it very difficult
to wait on either a timeout or any file descriptors. The SDL winsys is
documented not to require blocking on any file descriptors so we can
ignore that. It implements the timeout by adding an SDL timer which
pushes an event to the queue to wake up SDL_GetEvent.
The Cogland example was already using the glib main loop so that one
has been updated to add the CoglGLibSource to it.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
The GSource is created using cogl_glib_source_new which takes a
pointer to a CoglContext. The source calls cogl_poll_get_info() in its
prepare function and cogl_poll_dispatch() in its dispatch
function. The poll FDs on the source are updated according to what
Cogl reports.
The header is only included and the source only compiled if Cogl is
configured with GLib support.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
Previously we relied on the application to send all X events through
Cogl using cogl_xlib_renderer_handle_event. This breaks the
abstraction that an application shouldn't need to know what winsys
Cogl is using. Now that we have main loop integreation in Cogl, the
Xlib-based winsys's can report that Cogl needs to block on the file
descriptor of the X connection and it can manually handle the
events.
The event retrieval can be disabled by an application if it calls the
new cogl_xlib_renderer_set_event_retrieval_enabled() function. The
event retrieval will also automatically be disabled if the application
sets a foreign display.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
This adds two new functions:
void
cogl_poll_get_info (CoglContext *context,
CoglPollFD **poll_fds,
int *n_poll_fds,
gint64 *timeout);
void
cogl_poll_dispatch (CoglContext *context,
const CoglPollFD *poll_fds,
int n_poll_fds);
The application is expected to call the first function whenever it is
about to block to go idle, and the second function whenever it comes
out of idle. This gives Cogl winsys's the ability poll file
descriptors for events. For example when handing swap complete
notifications, it can report that it needs to block on a file
descriptor.
The two functions are backed by winsys virtual functions. There are
currently no implementations. The default handler for get_info just
reports no file descriptors and an infinite timeout.
Reviewed-by: Robert Bragg <robert@linux.intel.com>
This splits up cogl-ext-functions.h in to sets of prototypes that
can be included separately so that we can include just core
gles1 or gles2 functions without any extensions.
Since eglGetProcAddress can not be used to query core client APIs
and some implementations (notably on Android) can return a garbage
pointer instead of NULL this will allow us to explicitly check
when to use eglGetProcAddress and when to use dlsym().
Reviewed-by: Neil Roberts <neil@linux.intel.com>
If we need to realloc the uniforms overrides array for a pipeline to
insert a new override then we copy the old state into the new allocation
for the entries surrounding the inserted entry.
This patch fixes a mistake in how we copied the old entries that follow
the inserted entry since we were actually copying to begining of the new
allocation and potentially reading from beyond the extents of the old
allocation.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
This skips the pkg-config check for COGL_PANGO_DEPS if
--disable-cogl-pango was explicitly passed to ./configure.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
