It's reasonably normal for a relayout of the stage to cause the stage
to be queued for drawing; for this reason we should do the relayout before
we clear stage->update_idle. (But want to clear update_idle() before actually
doing the redraw to handle the corner case where the draw queues another
redraw.)
Bug 1499 - clutter_actor_notify_if_geometry_changed causes sync
layout cycles
Whenever clutter_actor_set_{width,height,x,y,size...} is used, extra
synchronous size requests are triggered in
clutter_actor_notify_if_geometry_changed.
If the get_preferred_width() and get_preferred_height() implementations
are particularly costly (e.g. ClutterText) this will result in a performance
impact.
To avoid excessive allocation or requisition cycles we use the
cached values and flags. If we don't have an allocation, we assume
that we need to notify all the properties; if we don't have a size
requisition we notify only width and height; finally, if we do have
a valid allocation we notify only on the changed values.
_cogl_add_path_to_stencil_buffer and _cogl_add_stencil_clip were leaving
the projection matrix current when calling cogl_rectangle which was
upsetting _cogl_current_matrix_state_flush.
Adds glFrustum wrappers (GLES only accepts floats not doubles, and GLES2
needs to use our internal cogl_wrap_glFrustumf)
Adds GL_TEXTURE_MATRIX getter code in cogl_wrap_glGetFloatv
Adds a GL_TEXTURE_MATRIX define for GLES2
Its not intended that users should use these with any other matrix mode, and
internally we now have the _cogl_current_matrix API if we need to play with
other modes.
If we later add internal flags to CoglMatrix then this code wouldn't
initialize those flags. The ways it's now done adds a redundant copy, but
if that turns out to be something worth optimizing we can look again at
using a cast but adding another way for initializing internal flags.
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.
Only have load-data-async and load-async properties, both are construct
only and the latter adds the former load-size-async behavior on top of
load-data-async.
This commit yesterday:
89e3e3a4cc
[animation] Add vector variants for ::animate()
broke the "fixed::" attribute on properties in clutter_actor_animate(),
because the fixed:: part is still on the string when it checks to see if
it's a valid property the class knows about.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
As a convenience, if NULL is passed for the text argument of
clutter_text_set_text() (and for consistency,
clutter_text_set_markup()), treat that the same as "".
Bug 1480 - Clutter groups don't output their name when
CLUTTER_DEBUG=paint
This is a really useful thing to do debugging-wise - as you can see
istantly when (and if) clutter objects are being drawn - as often
there's quite a hierarchy of objects in groups.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
Add missing (out) annotations to the doc comments for ClutterActor methods
with multiple return values.
Fix the definition of clutter_actor_get_allocation_vertices() to be
consistent with the declaration and have verts[4] rather than verts[].x
http://bugzilla.openedhand.com/show_bug.cgi?id=1481
Bug 1501 - clutter_text_insert_text not working right with non-onebyte
character
In clutter_text_insert_text(), the position is expressed in characters, not
in bytes.
Actually, it turns out to be working on bytes, so when there are already
multi-byte character in the text buffer, insert text at the position after
the multi-byte character will not work right.
Also, the position is not updated after the insert work is done.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
Bug 1500 - [Patch] clutter_text crash with non one-byte utf8 text exceed
max_length
In clutter_text_set_text_internal(), when text length in character is greater
than max_length, and there are multi-byte character in it, then the new text
string buffer is not malloc()'ed with right length. This will cause the app to
crash with segmention fault.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
The fixed-point values are converted to integers, which obviously
messes up the conversion. Instead, they should be converted to
floating point values before normalizing to bytes for the assignment
to ClutterColor components.
$(builddir) isn't always defined in earlier versions of Automake
(although I can't track down exactly which version it appeared
in). According to the autoconf docs it is "rigorously equal to `.'" so
we might as well not use it.
The private CoglContext is created using g_malloc() and not
zeroed; this means we have to initialize the values we are
going to check, to avoid hitting garbage.
Thanks to Tommi Komulainen.
Commit a383929 added the $(srcdir) prefix to all of the source files
but some files are generated by the configure script and other make
rules so they actually live in $(builddir). Out-of-tree builds
therefore broke.
Bug 1438 - Implicit Animation API could use animatev variants
The clutter_actor_animate* family of functions use va_lists to
handle the property/value pairs for the final state of the
animation.
Language bindings have problems with variadic arguments functions,
and usually prefer vector-based API which allow a greater level
of control and conversion from native data types.
For each variadic arguments function in the clutter_actor_animate*
family there should be a vector-based version that takes:
- the number of property/value pairs
- a constant array of constant strings
- an array of GValues
Most of the internal implementation can be refactored from the
current one, thus both the var_args and the vector entry points
share a common implementation of the code; then, both versions
of the API are just loops over a list of arguments.
Based on a patch by: Robert Carr <carrr@rpi.edu>
Since the switch from fixed point to floating point, and the introduction
of CoglFixed, ClutterFixed has been typedef'd into a float. This makes
ClutterFixed the worst fixed point API ever.
Now that Clutter has been migrated to CoglFixed and gfloat whenever needed,
ClutterFixed can be safely removed.
The only thing that Clutter should still provide is ClutterParamSpecFixed,
for installing fixed point properties into GObject classes.
The ClutterFixed symbols have been entirely removed from the API.
A GValue containing a ClutterUnit should be transformable into a
GValue holding an integer, a floating point value or a fixed point
value.
This means adding more transformation functions when registering
the ClutterUnit GType.
The fog and perspective API is currently split in two parts:
- the floating point version, using values
- the fixed point version, using structures
The relative properties are using the structure types, since they
are meant to set multiple values at the same time. Instead of
using bare values, the whole API should be coalesced into two
simple calls using structures to match the GObject properties.
Thus:
clutter_stage_set_fog (ClutterStage*, const ClutterFog*)
clutter_stage_get_fog (ClutterStage*, ClutterFog*)
clutter_stage_set_perspective (ClutterStage*, const ClutterPerspective*)
clutter_stage_get_perspective (ClutterStage*, ClutterPerspective*)
Which supercedes the fixed point and floating point variants.
More importantly, both ClutterFog and ClutterPerspective should
using floating point values, since that's what get passed to
COGL anyway.
ClutterFog should also drop the "density" member, since ClutterStage
only allows linear fog; non-linear fog distribution can be achieved
using a signal handler and calling cogl_set_fog() directly; this keeps
the API compact yet extensible.
Finally, there is no ClutterStage:fog so it should be added.
The type machinery for CoglFixed should be implemented by COGL
itself, now that COGL exports the GType of its types.
This allows moving most of what ClutterFixed did directly to
CoglFixed where it belongs.
ClutterFixed as a type is going away, superceded by CoglFixed. The
fixed point entry points in the API should be ported to the
CoglFixed type so that they are useful again.
Since the conversion of a floating point value to a fixed point
value is already done in double precision we can safely expose
a macro that converts a double precision floating point value to
a CoglFixed one.
Grabs are an entirely evil way to override the whole event delivery
machinery that Clutter has in place.
A pointer grab can be effectively replaced by a much more reliable
::captured-event signal handler, for instance.
Sometimes, grabs are a necessary evil -- and that is why Clutter
exposes them in the API; that should not fool anyone into thinking
that they should be used unless strictly necessary.
When calling clutter_actor_animate() on an actor that is being
currently animated the default behaviour is to update the duration
of the animation; the easing mode; update all the common properties;
and finally add the new properties.
This:
clutter_actor_animate (actor, 500, CLUTTER_LINEAR,
"width", 100,
"height", 100,
NULL);
clutter_actor_animate (actor, 250, CLUTTER_EASE_IN_CUBIC,
"x", 100,
"y", 100,
"height", 200,
NULL);
Is logically equivalent to:
clutter_actor_animate (actor, 250, CLUTTER_EASE_IN_CUBIC,
"x", 100,
"y", 100,
"width", 100,
"height", 200,
NULL);
The documentation of the function should be slightly more verbose
in describing the default behaviour.
The generation of the GObject introspection data has broken
the distcheck phase.
The location of the header and source files should always be
depending on the $(top_srcdir) and $(srcdir) variables,
respectively; the special handling of the COGL API inside the
GIR generation should also take those two variables into
account.
COGL should ship its own pkg-config file, obviously still pointing
to Clutter's compiler flags and linking options, for COGL-specific
variables that might be queried at configure time.
For instance, it's easier (and less verbose) to do:
PKG_CHECK_EXISTS([cogl-gl-1.0],
[has_gl_backend=yes],
[has_gl_backend=no])
Than doing:
AC_MSG_CHECKING([for GL support in COGL])
cogl_backend=`$PKG_CONFIG --variable=cogl clutter-0.9`
if test x$cogl_backend = xgl; then
has_gl_backend=yes
AC_MSG_RESULT([found])
else
has_gl_backend=no
AC_MSG_RESULT([not found])
fi
ClutterShader contains a lot of duplication, as the vertex and fragment
shader code paths are mostly the same.
The code should be simplified by adding new internal functions that can
be called with a value from the already present ClutterShaderType
enumeration.
In the future it'll also be possible to deprecate the current split API
and expose the generic accessors instead.
The ClutterColor API has some inconsistencies:
- the string deserialization function does not match the rest of
the conversion function naming policy; the naming should be:
clutter_color_parse() -> clutter_color_from_string()
and the first parameter should be the ClutterColor that will
be set from the string, not the string itself (a GDK-ism).
- the fixed point API should not be exposed, especially in the
form of ClutterFixed values
- the non-fixed point HLS conversion functions do not make any
sense. The values returned should be:
hue := range [ 0, 360 ]
luminance := range [ 0, 1 ]
saturation := range [ 0, 1 ]
like the current fixed point API does. Returning a value in
the [ 0, 255 ] range is completely useless
- the clutter_color_equal() should be converted for its use inside
a GHashTable; a clutter_color_hash() should be added as well
- the second parameter of the clutter_color_shade() function should
be the shading factor, not the result (another GDK-ism). this way
the function call can be translated from this:
color.shade(out result, factor)
to the more natural:
color.shade(factor, out result)
This somewhat large commit fixes all these issues and updates the
internal users of the API.
The CoglPango code falls under the COGL "jurisdiction"; this means
that it cannot include Clutter headers unless strictly necessary.
The CoglPangoRenderer code was using the CLUTTER_NOTE() macro. Now
that COGL has it's own COGL_NOTE() similar macro, CoglPango should
use that and avoid including clutter-debug.h (which pulls in
clutter-private.h which in turn pulls in clutter-actor.h).
A new flag, COGL_DEBUG_PANGO, has been added to the COGL debug
flags.
Bug 1493 - GL ES does not work since Jan 9 in PowerVR SGX 535, Intel
The mapped flag needs to be set on the stage otherwise
clutter_actor_queue_redraw will never queue a redraw and never draw
anything.
In these two backends there is not really a way to hide the stage so
they both set the mapped flag immediatly when clutter_actor_show is
called.
Using glEnable() directly confuses COGL and can result in problems
like subsequent pick operations not working correctly. Get the
material for the ClutterTexture and call cogl_material_flush_gl_state()
instead.
http://bugzilla.openedhand.com/show_bug.cgi?id=1483
When event delivery is invoked by synthetic events through
clutter_do_event from inside an event handler clutter was silently
ignoring it, this warning will hopefully help resolving some issues.
In the future if we want to annotate matrices with internal flags, and add
caching of the inverse matrix then we need to ensure that all matrix
modifications are done by cogl_matrix API so we'd know when to dirty the
cache or update the flags.
This just adds documentation to that effect, and assuming the most likley
case where someone would try and directly write to matrix members would
probably be to load a constant matrix other than the identity matrix; I
renamed cogl_matrix_init_from_gl_matrix to cogl_matrix_init_from_array to
make it seem more general purpose.
The font options accessors in ClutterBackend only deal with const
cairo_font_options_t values, since:
- set_font_options() will copy the font options
- get_font_options() will return a pointer to the internal
font options
Not using const in these cases makes the API confusing and might lead
to erroneous calls to cairo_font_options_destroy().
gcc warns about casting a pointer to a guint because it is a different
size on 64-bit machines. However the pointer is only used as a hash so
it doesn't matter if we lose the most significant bits. The patch
makes it use GPOINTER_TO_UINT instead which first casts it to a gulong
and avoids the warning.
Instead of creating a separate thread for each texture load, the loads
are now queued in a thread pool which will use at most 3 textures at a
time. This avoids the potentially large overhead of creating and
destroying a thread for every image while still avoiding throttling
the CPU if a large number of textures are loaded at the same time.
If the load is cancelled the old code needed to join the thread which
effectively meant it had to wait for the load to finish. With this
model the threads are owned by the thread pool so there is no need to
wait for them to finish. Instead, each thread is given its own thread
data which we can use to mark the thread as aborted. Once the load is
finished the thread will check whether it is aborted before setting
the texture data. That way the ClutterTexture can just disown threads
that it needs to cancel.
The duration in ClutterMedia is currently expressed in integer multiples
of a second. This does not offer enough granularity for media playback
that has fractionary durations -- 2.3 seconds; 1 minute, 23.4 seconds;
1 hour, 23 minutes, 4.5 seconds; etc.
The duration value should be expressed in seconds with a sub-second
granularity; for this reason, a double should be used insted of an
unsigned integer.
The semantics haven't changed: the :duration property still exposes
seconds.
Bug 1474 - ClutterMedia interface
The GET_INTERFACE() macro is still using the old type name of
the ClutterMedia interface structure in the cast.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
Bug 1473 - CoglPixelFormat enum data must be declared static
When registering an enumeration GType, the GEnumValue or GFlagsValue
arrays must be declared static; otherwise, you get a segmentation
fault when calling the function again.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
Instead of using a fixed size array for storing the scenegraph sub-node
during event delivery we should use a GPtrArray. The benefits are:
- a smaller allocation
- no undocumented yet binding constraint on the scenegraph size
The environment variable to disable mipmapping should also be
a command line switch, and be handled like the rest of Clutter's
environment variables/command line switches.
The ClutterFixed type and symbols are now equivalent to the native
float type. In order to remove ambiguity and clean up the code, any
usage of ClutterFixed and relative macros has been removed.
Clutter is able to show debug messages written using the CLUTTER_NOTE()
macro at runtime, either by using an environment variable:
CLUTTER_DEBUG=...
or by using a command line switch:
--clutter-debug=...
--clutter-no-debug=...
Both are parsed during the initialization process by using the
GOption API.
COGL would benefit from having the same support.
In order to do this, we need a cogl_get_option_group() function in
COGL that sets up a GOptionGroup for COGL and adds a pre-parse hook
that will check the COGL_DEBUG environment variable. The OptionGroup
will also install two command line switches:
--cogl-debug
--cogl-no-debug
With the same semantics of the Clutter ones.
During Clutter initialization, the COGL option group will be attached
to the GOptionContext used to parse the command line options passed
to a Clutter application.
Every debug message written using:
COGL_NOTE (SECTION, "message format", arguments);
Will then be printed only if SECTION was enabled at runtime.
This whole machinery, like the equivalent one in Clutter, depends on
a compile time switch, COGL_ENABLE_DEBUG, which is enabled at the same
time as CLUTTER_ENABLE_DEBUG. Having two different symbols allows
greater granularity.
Mipmapped text is enabled by default in Clutter but it can cause
problems on some drivers so it is convenient to have an environment
variable to disable it for all apps.
An assert to verify there was no error when generating a buffer object
for the vertex buffer API was being hit when running the GLES1 conformance
tests.
Bug #1457 - Creating a new texture messes up the cogl material state
cache; reported by Neil Roberts
We still don't have caching of bound texture state so we always have to
re-bind the texture when flushing the GL state of any material layers.
Bug #1460 - Handling of flags in cogl_material_set_color
Cogl automatically enables/disables blending based on whether the source color
has an alhpa < 1.0, or if any textures with an alpha component are in use, but
it wasn't doing it quite right.
At the same time I removed some of the dirty flags which on second thought
are nothing more than micro-optimsations that only helped clutter the code.
thanks to Owen Taylor for reporting the bug
Since the CoglMatrix type was added for supporting texture matrices recently
it made sense to be consistent accross the Cogl API and use the Cogl type
over the GL style GLfloat m[16] arrays.
The INCLUDES directive should only contain pre-processor flags, since
we're passing it also to the introspection scanner.
Using AM_CFLAGS for compiler flags, like debug flags and maintainer
flags, is more indicated.
Bug 1442 - multistage, same-window resize events invalidate stage
When ensuring that the GL context is attached to the correct
ClutterStage we need to set the SYNC_MATRICES flag on the stage
itself. This is needed in case the size of the new stage does
not match the size of the old -- thus requiring a call to
glViewport() when the paint cycle starts.
cogl_wrap_glActiveTexture needs to call the GL version of
glActiveTexture otherwise the subsequent calls to glBindTexture will
all be using texture unit 0. This fixes test-cogl-multitexture.
Previously the texture unit settings were stored in growable GArrays
and every time a new texture unit was encountered it would expand the
arrays. However the array wasn't copied when stored in a
CoglGles2WrapperSettings struct so all settings had the same
array. This meant that it wouldn't detect that a different program is
needed if a texture unit is disabled or enabled.
The texture unit settings arrays are all now a fixed size and the
enabledness of each unit is stored in a bit mask. Therefore the
settings can just be copied around by assignment as before.
This puts a limit on the number of texture units accessible by Cogl
but I think it is worth it to make the code simpler and more
efficient. The material API already poses a limit on the number of
texture units it can use.
configure.ac: Check for gobject-introspection
build/introspection.m4: Include the file that defines the
GOBJECT_CHECK_INTROSPECTION m4 macro in case we want to disable
the introspection data generation.
clutter/json/Makefile.am: Build the .gir for "ClutterJson"
(json-glib as part of the Clutter library)
clutter/Makefile.am: Build the .gir for clutter, compile the
Clutter and ClutterJson girs into typelibs, and install them.
Also move GCC_FLAGS from $(INCLUDES) to $(AM_CFLAGS) since it includes
non-preprocessor flag like -Wall.
See also:
http://bugzilla.openedhand.com/show_bug.cgi?id=1450
Based on a patch by: Owen W. Taylor <otaylor@fishsoup.net>
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
Add annotations such as (transfer-none) (out) (element-type ClutterActor),
and so forth to the doc comments as appropriate.
The annotations added here are a combination of the annotations previously
in gir-repository for Clutter and annotations found in a review of all
return values with that were being parsed with a transfer of "full".
http://bugzilla.openedhand.com/show_bug.cgi?id=1452
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
Bug 1464 - clutter_timeline_list_markers should set n_markers=0 when
there are no markers
If no markers are registered and we bail out we should also set the
n_markers out parameter to 0 so that code checking the number of
markers will still work.
Bug 1465 - clutter_path_parse_description should check p==NULL
When accepting a stringified path description, ClutterPath methods
and the parser should not accept NULL or empty strings.
Bug 1463 - clutter_color_lighten(darken) unexpected because of
ClutterFixed=>float
These two functions contained ClutterFixed constants represented as
integers which are no longer valid since the cogl-float branch
merge. They are now converted to ClutterFixed from float constants
using CLUTTER_FLOAT_TO_FIXED (which is now a no-op).
Thanks to Zhang Wei for reporting.
This causes clutter to skip all the GL work of state changes and
texturing if the opacity was 0. This is done in ClutterTexture and not
ClutterActor to ensure that pre and post paint signals work correctly.
Other expensive actors should be doing the same thing.
The call to "cmp" to compare a built file with its current version
should use the -s (silent) command line switch. This avoids a ugly
message on the console when building Clutter the first time.
When setting the COGL texture handle for a ClutterTexture the
texture will be set as the first layer of the material used
by the ClutterTexture. The documentation should clarify this
point.
The :texture and :material properties of ClutterTexture use a
Clutter-provided GType shielding from CoglHandle. Since CoglHandle
now has a GType we can use COGL_TYPE_HANDLE instead.
This commit also removes the conditional compilation of the
:material property, as it makes little sense now that the
Materials API has landed.
COGL types should be registered inside the GType system, for
bindings and type checking inside properties and signals.
CoglHandle is a boxed type with a ref+unref semantics; slightly evil
from a bindings perspective (we cannot associate custom data to it),
but better than nothing.
The rest of the exposed types are enumerations or bitmasks.
The COGL_DEFINE_HANDLE macro generates a cogl_is_<type> function
as well, to check whether a CoglHandle opaque pointer is of type
<type>.
The handle for CoglMaterial does not export cogl_is_material() in
its installed header.
The rotation angle calculated in clutter_behaviour_rotate_alpha_notify
gets applied to each actor using clutter_behaviour_actors_foreach. The
angle is a ClutterFixed value. Before the cogl float branch merge it
was stuffed into a gpointer using GPOINTER_TO_UINT. The pointer was
then converted back to a uint and cast to a ClutterFixed which worked
out fine even for negative numbers.
After the cogl-float merge the angle is effectively a gfloat. This
gets cast to a uint and stored in a pointer and converted back to a
float via a uint at the other end. However this fails for negative
numbers because a uint -> float conversion can't take advantage of
overflow to preserve the sign so you end up with a large number.
It also had the side effect that it only rotated in whole degrees.
This commit fixes the problem by just passing the ClutterFixed value
inside a closure struct instead of trying to stuff it into a pointer.
Bug 1167 - clutter_effect_rotate improperly clamps negative angles
The rotation angle properties had a minimum value of 0.0 but the
rotation works fine with a negative value so the limitation is
unnecessary. This makes rotation using the ClutterAnimation API more
flexible because it was previously not possible to rotate
counter-clockwise from the 0.0 position.
When rendering a clone before this commit the clone's opacity was
combined with the opacity of the source but this is not usually the
desired effect. Instead the clone's opacity (combined with its
parents) should completely override the opacity of the source.
cogl_paint_init was a bit too miscellaneous; it mainly cleared the color, depth
and stencil buffers but arbitrarily it also disabled fogging and lighting.
It no longer disables lighting, since we know Cogl never enables lighting and
disabling of fog is now handled with a seperate function.
Since I noticed cogl_set_fog was taking a density argument documented as
"Ignored" I've also added a mode argument to cogl_set_fog which exposes the
exponential fog modes which can make use of the density.
Bug #1453 - Asynchronous texture loading can starve cpu.
Add a mutex that is held in the loader threads during the image
decoding. We were spawning and starting a thread for each asynchronously
loaded texture. This can cause cpu / memory starvation when many pixbuf
loaders allocate their temporary memory at the same time.
Also added -fno-strict-aliasing to MAINTAINER_CFLAGS in configure.ac
to avoid incorrect warnings caused by the static mutex code.
The clutter_get_current_event_time() function will return the event
timestamp coming from a Clutter event. Clutter might synthesize or
throttle events, so the function cannot be used when dealing with
backend-specific use cases.
The X11 backend is the only backend supported by Clutter that makes
use of timestamps, so it's altogether fitting that it should come
with a specific function to deal with the timestamps of the X events.
In generate_enter_leave_events it passes the device pointer from the
event to set_motion_last_actor but it was reading it directly from
event->motion.device. However the function is also used to process
button events so it would read from the wrong location in this case.
The device location in the union happened to be in the same place as
the click_count field of ClutterButtonEvent so it only mattered if the
click_count is non-zero. The X11 backend doesn't set this but
Clutter-GTK does so it was causing a crash.
Bug 1178 - No enter / leave events on actors when pointer leaves the
stage window
This patch causes the Win32 backend to emit CLUTTER_LEAVE events when
a WM_MOUSELEAVE event is received in the same way that f505536 does
for the X11 backend.
Windows will only send WM_MOUSELEAVE events if they are previously
requested using TrackMouseEvent so this needs to be called whenever
the mouse enters the window. There is no WM_MOUSELEAVE event but we
can detect when the mouse enters because we get a WM_MOUSEMOVE event.
All GL functions that are defined in a version later than 1.1 need to
be called through cogl_get_proc_address because the Windows GL DLL
does not export them to directly link against.
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.
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>
Moved clutter_stage_set_title() before call to clutter_actor_realize()
to ensure _NET_WM_NAME is set early enough for use by interested WM's,
Signed-off-by: Shane Bryan <shane.bryan@linux.intel.com>
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
The clutter_get_current_event_time() is a global function for
retrieving the timestamp of the current event being propagated
by Clutter. Such function avoids the need to propagate the
timestamp from within user code.
ClutterListModel has been added as a terminal class in case we
decided to change API or implementation.
Apparently, it's a lot more resilient than we expected -- or far
too few are using it and reporting bugs. Once common issue, though,
is that it cannot be subclassed, hence it's fairly limited in its
usage.
In the hope that more developers will start using it, here's a
patch that makes ListModel a fully subclassable object.
May whatever god you believe in have mercy on your eventual soul.
The main COGL header file is generated at configure time. If something
changes in the template, though, the file will not be regenerated.
Adding cogl.h to the BUILT_SOURCES list will allow the regeneration to
happen.
Key events can come from different input devices, so they need a
ClutterInputDevice member like the pointer-related events. This
field is reserved for future use.
To convert from a TextureQuality to a COGL filter enumeration
we need to perform two function calls. Since we need both filters
when calling cogl_texture_set_filters() we can safely consolidate
the two conversion functions into one. This also allows using a
shorter function name, thus reducing the lenght of the lines
involved and, more importantly preventing Emmanuele from crying.
This hides a number of internal structs and enums from the docs, and moves
some functions to more appropriate sections as well as misc description
updates (mostly for the vertex buffer api)
Fixes some blending issues when using color arrays since we were
conflicting with the cogl_enable state + fixes a texture layer
validation bug.
Adds a basic textured triangle to test-vertex-buffer-contiguous.
Otherwise if the dipose method is called twice the material will
already be destroyed when texture_free_gl_resources is called so it
will issue a warning about an invalid handle.
When the quad log contains multiple textures (such as when a sliced
texture is drawn) it dispatches the log with multiple calls to
flush_quad_batch and walks a pointer along the list of vertices.
However this pointer was being incremented by only one vertex so the
next quad would be drawn with three of the vertices from the last
quad.
The 'no_slice' property means the texture should never be sliced. We
want cogl to create a texture with any amount of waste so we pass
max_waste as -1. However this got broken in commit 168d55 so that the
meaning got negated (no_slice enabled slicing).
The current code that handles the invariant that the new parent
of an actor needing a layout should also be queued for relayout
is hitting the short-circuiting we do in the queue_relayout()
method.
In order to fix this we can forcibly set the actor to need a
width/height request and an allocation; then we queue a relayout
on the parent.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
The :alignment property is prone to generate confusion: developers
will set it thinking that the contents of a ClutterText will
automagically align themselves.
Instead of using the generic term :alignment, and following the
GTK+ convention, we should use a more specific term, conveying the
actual effect of the property: alignment of the lines with respect
to each other, and not to the overall allocated area.
See bug 1428:
http://bugzilla.openedhand.com/show_bug.cgi?id=1428
When setting the cogl texture, the ClutterTexture takes a reference to
the Cogl handle but the material takes an additional reference when it
is set as the layer. Nothing was unrefing the temporary reference so
the textures were being leaked.
The opacity of the source actor when painted from the clone should be
combined with the opacity of the clone as well as the clone's parents,
instead of just the parents.
The quad drawing code keeps track of the number of texture units that
have the tex coord array enabled so that in the next call it can
disabled any that are no longer enabled. However it was using 'i+1' as
the count but 'i' is already set to 'n_layers' from the previous for
loop.
Therefore it was disabling an extra texture unit. This doesn't
normally matter but it was causing GLES 2 to pointlessly realize an
extra unit.
- In cogl-material.h it directly sets the values of the
CoglMaterialLayerCombineFunc to some GL_* constants. However these
aren't defined in GLES 2 beacuse it has no fixed function texture
combining. Instead the CGL_* versions are now used. cogl-defines.h
now sets these to either the GL_* version if it is available,
otherwise it directly uses the number.
- Under GLES 2 cogl-material.c needs to access the CoglTexture struct
so it needs to include cogl-texture-private.h
- There are now #define's in cogl-gles2-wrapper.h to remap the GL
function names to the wrapper names. These are disabled in
cogl-gles2-wrapper.c by defining COGL_GLES2_WRAPPER_NO_REMAP.
- Added missing wrappers for glLoadMatrixf and glMaterialfv.
- Renamed the TexEnvf wrapper to TexEnvi because the latter is used
instead from the material API.
Cogl previously tried to cache the currently bound texture when
drawing through the material API to avoid excessive GL calls. However,
a few other places in Cogl and Clutter rebind the texture as well so
this can cause problems.
This was causing shaped windows to fail in Mutter because
ClutterGLXTexturePixmap was binding a different texture to update it
while the second texture unit was still active which meant the mask
texture would not be selected when the shaped window was drawn
subsequent times.
Ideally we would fix this by providing a wrapper around glBindTexture
which would affect the cached value. The cache would also have to be
cleared if a selected texture was deleted.
If the source of a ClutterClone does not have a parent actor the
clone will be unable to paint it because it's missing an allocation.
A simple way to fix it is to make the ClutterClone act like a
"foster parent": when it is allocated it will check if the source
actor has a parent and if not it will allocate the source with
its preferred size.
Final bit of integration between ClutterActor and Pango: a simple
method for creating a PangoLayout, pre-filled with text and ready
to be rendered using cogl_pango_render_layout().
This should make writing new Actors rendering custom text in their
paint() implementation easy and reliable.
ClutterText should merge the PangoAttributes set by using
clutter_text_set_attributes() with the attributes generated by
parsing Pango markup.
For this to work we must parse the markup and merge the attributes
we get out of pango_parse_markup() with the attributes set by
the user.
Setting the markup or the attributes on an editable text should
not work for the time being.
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).
This tries to make a number of files more comparable with the intention of
moving some code into cogl/common/
Files normalized:
cogl.c
cogl-context.c
cogl-context.h
cogl-texture.c
Someone not sure which cogl_color_set_from_* version is "best" may use
set_from_4d because taking doubles implies higher precision. Currently
it doesn't have any advantage.
This makes it consistent with cogl_rectangle_with_{multi,}texture_coords.
Notably the reason cogl_rectangle_with_{multi,}texture_coords wasn't changed
instead is that the former approach lets you describe back facing rectangles.
(though technically you could pass negative width/height values to achieve
this; it doesn't seem as neat.)
The code is #if 0 guarded, but when uncommented it outlines all drawn
rectangles with an un-blended red, green or blue border. This may e.g. help
with debugging texture slicing issues or blending issues, plus it looks quite
cool.
Bug 1349 - Using the anchor point to set the scale center is messy
The branch adds an extra center point for scaling which can be used
for example to set a scale about the center without affecting the
position of the actor.
The scale center can be specified as a unit offset from the origin or
as a gravity. If specified as a gravity it will be stored as a
fraction of the actor's size so that the position will track when the
actor changes size.
The anchor point and rotation centers have been modified so they can
be set with a gravity in the same way. However, only the Z rotation
exposes a property to set using a gravity because the other two
require a Z coordinate which doesn't make sense to interpret as a
fraction of the actor's width or height.
Conflicts:
clutter/clutter-actor.c
When drawing a texture with waste in _cogl_multitexture_unsliced_quad
it scales the texture coordinates so that the waste is not
included. However the formula was the wrong way around so it was
calculating as if the texture coordinates are ordered x1,x2,y1,y2 but
it is actually x1,y1,x2,y2.
When the texture is sliced it drops back to a fallback function and
passes it the texture coordinates from the rectangle. However if no
tex coords are given it would crash. Now it passes the default
0.0->1.0 tex coords instead.
If no texture coordinates are given then texture_unsliced_quad tries
to generate its own coordinates. However it also tries to read the
texture coordinates to check if they are in [0.0,1.0] range so it will
crash before it reaches that.
Instead of having a separate set of font options that override the
backend options when clutter_set_font_flags is called, it now just
directly sets the backend font options. So now the font flags are just
a convenience wrapper around the backend font options.
This also makes the ClutterText labels automatically update when the
font flags are changed because they will respond to the 'font-changed'
signal from the backend.
Whenever a ClutterText is created it now connects to the font-changed
signal. When it is emitted the layout cache is dirtied and a relayout
is queued. That way changes to the font options or resolution will
cause an immediate update to the labels in the scene.
* generic-actor-clone:
Remove CloneTexture from the API
[tests] Clean up the Clone interactive test
Rename ActorClone to Clone/2
Rename ActorClone to Clone/1
Improves the unit test to verify more awkward scaling and some corresponding fixes
Implements a generic ClutterActorClone that doesn't need fbos.
Conflicts:
clutter/cogl/gl/cogl-texture.c
clutter/cogl/gles/cogl-primitives.c
* cogl-material:
clutter-{clone-,}texture weren't updating their material opacity.
Updates GLES1 support for CoglMaterial
Normalizes gl vs gles code in preperation for synching material changes
Removes cogl_blend_func and cogl_alpha_func
Fully integrates CoglMaterial throughout the rest of Cogl
[cogl-material] Restore the GL_TEXTURE_ENV_MODE after material_rectangle
[cogl-material] Make the user_tex_coords parameter of _rectangle const
[test-cogl-material] Remove return value from material_rectangle_paint
Add cogl-material.h and cogl-matrix.h to libclutterinclude_HEADERS
[cogl-material] improvements for cogl_material_rectangle
[cogl-material] Adds a cogl_material_set_color function
[cogl-material] Some improvements for how we sync CoglMaterial state with OpenGL
[cogl-material] Converts clutter-texture/clutter-clone-texture to the material API
[doc] Hooks up cogl-material reference documentation
Updates previous GLES multi-texturing code to use CoglMaterial
Adds a CoglMaterial abstraction, which includes support for multi-texturing
[doc] Hooks up cogl-matrix reference documentation
Adds CoglMatrix utility code
[tests] Adds an interactive unit test for multi-texturing
[multi-texturing] This adds a new cogl_multi_texture API for GL,GLES1 + GLES2
ClutterClone supercedes ClutterCloneTexture, since it can clone
every kind of actor -- including composite ones.
This is another "brain surgery with a shotgun" kind of commit: it
removes CloneTexture and updates every test case using CloneTexture
to ClutterClone. The API fallout is minimal, luckily for us.
The hope is that this function makes it easier to extend the font
settings with more flags without having to add a function for every
setting.
A new flag for enabling hinting has been added. If set, this changes
the font options on the global PangoContext and any newly created
PangoContexts. The options are only set if the flag is changed from
the default so it won't override any detailed setting chosen by the
backend.
cogl_set_source_color4ub was previously used to set a transparent
white source color according to the actors opacity, but since
cogl_set_source_color now always implies you want a solid fill we
we use cogl_material_set_color4ub to achieve the same result.
This updates cogl/gles in line with the integration of CoglMaterial throughout
Cogl that has been done for cogl/gl.
Note: This is still buggy, but at least it builds again and test-actors works.
Some GLES2 specific changes were made, but these haven't been tested yet.
This changes all GLES code to use the OpenGL function names instead of
the cogl_wrap_* names. For GLES2 we now define the OpenGL name to point
to the wrapper, as opposed to defining the wrapper to point to the
OpenGL name for GLES1.
I've also done a quick pass through gl/cogl.c and gles/cogl.c to make
them more easily comparable. (most of the code is now identical)
The GL blend function and alpha function are now controlled by the material
code, and even internally Cogl should now be using the material API when
it needs control of these.
This glues CoglMaterial in as the fundamental way that Cogl describes how to
fill in geometry.
It adds cogl_set_source (), which is used to set the material which will be
used by all subsequent drawing functions
It adds cogl_set_source_texture as a convenience for setting up a default
material with a single texture layer, and cogl_set_source_color is now also
a convenience for setting up a material with a solid fill.
"drawing functions" include, cogl_rectangle, cogl_texture_rectangle,
cogl_texture_multiple_rectangles, cogl_texture_polygon (though the
cogl_texture_* funcs have been renamed; see below for details),
cogl_path_fill/stroke and cogl_vertex_buffer_draw*.
cogl_texture_rectangle, cogl_texture_multiple_rectangles and
cogl_texture_polygon no longer take a texture handle; instead the current
source material is referenced. The functions have also been renamed to:
cogl_rectangle_with_texture_coords, cogl_rectangles_with_texture_coords
and cogl_polygon respectivly.
Most code that previously did:
cogl_texture_rectangle (tex_handle, x, y,...);
needs to be changed to now do:
cogl_set_source_texture (tex_handle);
cogl_rectangle_with_texture_coords (x, y,....);
In the less likely case where you were blending your source texture with a color
like:
cogl_set_source_color4ub (r,g,b,a); /* where r,g,b,a isn't just white */
cogl_texture_rectangle (tex_handle, x, y,...);
you will need your own material to do that:
mat = cogl_material_new ();
cogl_material_set_color4ub (r,g,b,a);
cogl_material_set_layer (mat, 0, tex_handle));
cogl_set_source_material (mat);
Code that uses the texture coordinates, 0, 0, 1, 1 don't need to use
cog_rectangle_with_texure_coords since these are the coordinates that
cogl_rectangle will use.
For cogl_texture_polygon; as well as dropping the texture handle, the
n_vertices and vertices arguments were transposed for consistency. So
code previously written as:
cogl_texture_polygon (tex_handle, 3, verts, TRUE);
need to be written as:
cogl_set_source_texture (tex_handle);
cogl_polygon (verts, 3, TRUE);
All of the unit tests have been updated to now use the material API and
test-cogl-material has been renamed to test-cogl-multitexture since any
textured quad is now technically a test of CoglMaterial but this test
specifically creates a material with multiple texture layers.
Note: The GLES backend has not been updated yet; that will be done in a
following commit.
Step two: rename the object and its methods.
While we're at it, adhere more strictly to the coding style
practises; rename :clone-source to :source; add a setter method
for the :source property; take a reference on the source actor
to avoid it disappearing while we're still accessing it.
Like clutter_timeline_advance(), calling advance_to_marker() will
not emit ::new-frame for the frame where the marker is set on; it
will also not emit ::marker-reached for the marker we are advancing
the timeline to.
When calling clutter_timeline_advance(), a timeline will not emit
the ::new-frame signal for the frame we are advancing to, as this
would break the invariants of the timeline behaviour.
The documentation should make this clear.
The clutter_timeline_new() constructor is not checking the full
range of the passed :fps property. The ParamSpec of the property
and the setter method perform this check, so the ctor should as
well.
The "is-timeline-complete" condition is pretty long, spanning
four lines and four logical sub-conditions. It is possible to
neatly move it into an is_complete() function and make the
code more readable.
The long description of the ClutterTimeline class is very C
developer-oriented. Since many language bindings will refer to
the C API reference we should probably be more verbose and
language agnostic -- at least in the class description.
The methods documentation also requires a little pass to increase
the consistency of the terminology, the grammar and the syntax.
Finally, comments never killed anyone.
Since not every timeline will have markers it's unfair to make
all of them crete two empty hash tables (with a preallocated
fixed size).
This commit moves the responsibility of creating the hash tables
to the marker API itself, and adds the relative checks.
Since we are using milliseconds granularity to integrate timelines
with the GLib main loop, we cannot allow values of the :fps
property bigger than 1000. This means validating the fps value both
in the GParamSpec and the clutter_timeline_set_speed() accessor
function.
This should also fix floating point exceptions when trying to
perform "n_frames = milliseconds / (1000 / fps)".
See bug 1354:
http://bugzilla.openedhand.com/show_bug.cgi?id=1354
If a ClutterTexture does not sync size, it should be possible to
change the texture size without causing a relayout.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
There is some GL work and a repaint anytime the clip is set
or unset, so avoid that if it isn't really changed.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
The stage will usually be painted before the first ConfigureNotify
arrives so we need to set the SYNC_MATRICES flag to ensure that the
viewport will be correct for that paint. Unfortunately this means that
the viewport will be set again once the ConfigureNotify is received
but compared to rendering an initial invalid scene I think it is the
lesser of two evils.
When calling clutter_behaviour_apply() the new actor is prepended
to the list of actors to which a behaviour is applied; this breaks
the rest of methods working on the actors list, e.g.:
# adding actors
apply(actor_0);
apply(actor_1);
apply(actor_2);
# expected: [ actor_0, actor_1, actor_2 ]
[ actor_2, actor_1, actor_0 ] = get_actors();
# expected: actor_2
actor_0 = get_nth_actor(2);
This commit fixes the inconsistency in the returned values.
The Cogl primitives broke for GLES 1.1 and 2 after the cogl-float
branch merge.
CoglPathNode was still being declared as GLfixed for the GLES backend
but it was being filled with float values so they were all ending up
as numbers < 1.
glDrawArrays was being called with GL_FIXED so this has been changed
to GL_FLOAT.
The scanline rasterizer had a leftover hardcoded ClutterFixed constant
to add a small amount to the height of each line.
struct _CoglFloatVec2 has been removed because it is no longer used
anywhere.
The special check to invert the progress when the timeline direction
is backwards is not necessary because the actual frame number will be
decreasing in that case. Inverting just makes it progress forwards
again.
This is more apparent since the float-alpha-value branch merge because
the clutter_linear function directly returns the value from
get_progress. For example in test-depth, the animations loop instead
of oscillating back and forth.
The documentation has been updated to reflect the fact that the anchor
point will move when the actor changes size if it was specified using
a gravity value. The new functions for setting the scale center and z
rotation gravity are also documented.
Currently only the Z axis rotation center can be set using a gravity
but the other rotations also store their center as an AnchorCoord for
consistency. Specifying the center as a gravity makes less sense for
the other axes because the actors have no size along the Z axis.
The rotation angles are now stored as gdoubles and the fixed point *x
entry points have been removed.
The Z rotation can now be set with a gravity center using the
following new function:
void clutter_actor_set_z_rotation_from_gravity (ClutterActor *self,
gdouble angle,
ClutterGravity gravity);
This sets the center point from which the scaling will occur. This can
be used insetad of the anchor point to avoid moving the actor. Like
the anchor point, it can be specified as either a coordinate in units
or a gravity enum.
To set the center you can use two new variants of set_scale:
clutter_actor_set_scale_full (ClutterActor *self,
gdouble scale_x,
gdouble scale_y,
int center_x,
int center_y);
or
clutter_actor_set_scale_with_gravity (ClutterActor *self,
gdouble scale_x,
gdouble scale_y,
ClutterGravity gravity);
The ClutterFixed variants of the set_scale functions have been removed
and the scale value is now always stored as a double.
This makes it so when the anchor point is set using a gravity enum
then the anchor point moves when the actor changes size. A new
property is added for the anchor point gravity. If the anchor point is
set from gravity then the position in units can also be retreived with
the regular API.
A new union type is used to store the anchor point with helper
accessor functions. The hope is these can be reused for the scale and
rotation center points.
The clutter_stage_get_resolution() and fixed-point API are just
shorthands for:
clutter_backend_get_resolution (default_backend);
And as such do not fit at all in the ClutterStage class. The only
reason for their existence was the ClutterUnit conversion macros,
which have now been fixed to use the default backend through a
function call instead.
Thus, we can safely remove the stage entry points.
The maintainer compiler flags we use trigger warnings and errors
in the autogenerated code that gtk-doc creates to scan the header
and source files. Since we cannot control that, and we must run
a distcheck with both --enable-gtk-doc and --enable-maintainer-flags
turned on, we need to use less-strict compiler flags when inside
the doc/reference subdirectories.
The way to do this is to split the maintainer compiler flags into
their own Makefile variable, called MAINTAINER_CFLAGS. The we
can use $(MAINTAINER_CFLAGS) in the INCLUDES or _CFLAGS sections
of each part of the source directories we wish to check with the
anal retentiveness suited for maintainers.
* float-alpha-value:
[script] Parse easing modes by name
[docs] Update the easing modes documentation
[animation] Implement new easing functions
[animation] Move the alpha value to floating point
Since we allow overriding the paint() implementation through the
::paint signal to change the way an actor is being painted, we
should also allow overriding the pick() implementation using a
::pick signal.
The script converted calls to COGL_FIXED_MUL(x,y) to (x*y). However
this fails for cases like this:
COGL_FIXED_MUL(a + b, c)
which become
(a + b * c)
The meaning of this is of course different because multiplication has
a higher precedence than addition.
This was causing breakages in cogl_texture_quad_sw when the vertex
coordinates are not in increasing order. This was the case in
test-backface-culling when NPOTs are not available.
Improve clutter_sinx() by replacing the low precision CFX_SIN_STEP
with a multiply/divide pair. This reduces the maximum error from
1.8e-04 to 2.4e-05.
http://bugzilla.openedhand.com/show_bug.cgi?id=1314
Based on a patch by Owen W. Taylor <otaylor@fishsoup.net>
Since a pick is really a paint operation, we can safely get
the allocation box, instead of using get_width() and get_height().
This should help cutting down the function calls. If we were
feeling adventurous, we could even use the allocation directly
from the private data structure.
Based on a patch by Gwenole Beauchesne <gbeauchesne@splitted-desktop.org>
Compute the value of the camera distance as exactly half the xx
component of the projection matrix. The heuristically derived
value for 60 degrees was off by about 0.016%, causing noticeable
blurring, and other field of view angles which didn't have the
heuristic adjustment off by much more.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
If an actor is not set as visible, or if it is in a section of
the scenegraph that it's set as not visible (e.g. one of the
parents is not visible) then we should not queue a redraw for
it.
Patch based on code from Michael Boccara <michael@graphtech.co.il>
The intention behind ::queue-redraw is to be able to block the
default handler by attaching a callback and calling one of the
g_signal_stop_emission variants.
However this doesn't work, because ::queue-redraw has the
G_SIGNAL_RUN_FIRST flag instead of G_SIGNAL_RUN_LAST.
The GValue and GParamSpec integration of ClutterUnit was still
using the old, fixed-point based logic.
Storing ClutterUnits in a GValue should use floating point values,
and ClutterParamSpecUnit should follow suit.
Instead of recomputing the number of units needed to fit in
an em each time clutter_units_em() is called, we can store this
value into the default Backend along with the resolution and
font name. The value should also be updated each time the
resolution and font are changed, to keep it up to date.
The coordinates of each ButtonEvent are relative to the stage that
received the event, so we should document this in the structure
annotation.
It should also be mentioned that the coordinates can be transformed
into actor-relative coordinates by using transform_stage_point().
An em is a unit of measurement in typography, equal to the point
size of the current font.
It should be possible to convert a value expressed in em to
ClutterUnits by using the current font and the current DPI as
stored by the default backend.
The stage-with/height-percentage converters had been broken by
the multiple-stages support of Clutter 0.8. They are also made
useless by the fact that Units are now floating point values.
The millimeters and typographic points converters also depended
on the default stage, but they can be reworked to use the default
DPI coming from the default Backend instead.
Boolean arguments for functions are pretty evil and usually
lead to combinatorial explosion of parameters in case multiple
settings are added.
In the case of the COGL texture constructors we have a boolean
argument for enabling the auto-mipmapping; it is conceivable that
we might want to add more settings for a COGL texture without
breaking API or ABI compatibility, so the boolean argument should
become a bitmask.
The internals have not been changed: instead of checking for
a non-zero value, we check for a bitmask being set.
ClutterMedia was a rough cut at a simple media API; it needs some
re-evaluation before 1.0 in order to keep it simple to use, and
simple to implement.
- ClutterMedia:position
The position property accessors collide with the corresponding
ClutterActor methods, which make it impossible to bind them in
high-level languages:
video_texture.set_position()
video_texture.get_position()
In order to resolve the collision, we have to go through the
GObject properties API:
video_texture.set('position', value)
value = video_texture.get('position')
A :position in seconds is also a GStreamer-ism, and should rather
be converted to a :progress property, with a normalized value
between 0 and 1. the current position in seconds would then simply
be progress*duration. For non-seekable streams, 0.0 would always
be returned. This makes it easier to use the progress inside
animations, Timelines or ClutterPath instances.
- ClutterMedia:volume should be renamed to :audio-volume and normalized
as well, instead of being a floating point value between 0 and 100.
- ClutterMedia:buffer-percent should just be :buffer-fill and normalized
between 0.0 and 1.0
This better reflects the fact that the api manages sets of vertex attributes,
and the attributes really have no implied form. It is only when you use the
attributes to draw that they become mesh like; when you specify how they should
be interpreted, e.g. as triangle lists or fans etc. This rename frees up the
term "mesh", which can later be applied to a concept slightly more fitting.
E.g. at some point it would be nice to have a higher level abstraction that
sits on top of cogl vertex buffers that adds the concept of faces. (Somthing
like Blender's mesh objects.) There have also been some discussions over
particle engines, and these can be defined in terms of emitter faces; so some
other kind of mesh abstraction might be usefull here.
Okey; to summarise the changes...
We have converted Clutter and Cogl over to using floating point internally
instead of 16.16 fixed, but we have maintained the cogl-fixed API as a
utility to applications in case they want to implement their own optimizations.
The Clutter API has not changed (though ClutterFixed and ClutterUnit are now
internally floats) but all Cogl entry points have been changed to accept floats
now instead of CoglFixed.
To summarise the rationale...
There have been a number of issues with using fixed point though out Clutter
and Cogl including: lack of precision, lack of range, excessive format
conversion (GPUs tend to work nativly with IEEE floats) and maintainability.
One of the main arguments for fixed point - performance - hasn't shown
itself to be serious in practice so far since we seem to be more limited
by GPU performance and making improvements regarding how we submit data to
OpenGL[ES]/the GPU has had a more significant impact.
Ref: The recent multiple rectangle queuing changes + the
cogl-texture-agressive-batching branch which show significant performance
gains, and that recent tests on the ipodtouch (ARM + MBX) also showed no
loss of performance running with floats.
So finally; please forgive the inevitable fallout, this is a far reaching
change. There are still a few known issues with the fixed to float
conversion but enough works for all our conformance tests to pass, and the
remaining issues hopefully wont be too tricky to solve. For reference two
tags will be available either side of this change: "cogl-fixed-end" and
"cogl-float-start"
The easing modes for a ClutterAlpha can either be parsed by using
the enumeration "nickname" (the shorthand form of the enumeration
value) or by using the common naming policy used in other
animation frameworks, like:
easeInCubic
easeOutElastic
easeInOutBounce
The ClutterAlpha API reference page should also list the
easing modes Clutter provides by default, by showing the
curves used by each entry in the AnimationMode enumeration.
We can also remove the incomplete graph showing the old
alpha functions.
Instead of using our own homegrown alpha functions, we should
use the easing functions also shared by other animation frameworks,
like jQuery and Tween, in the interests of code portability.
The easing functions have been defined by Robert Penner and
are divided into three categories:
In Out InOut
Each category has a particular curve:
Quadratic
Cubic
Quartic
Quintic
Sinusoidal
Exponential
Circular
In addition, there are "physical" curves:
Elastic
Back (overshooting cubic)
Bounce (exponentially decaying parabolic)
Finally, the Linear curve is also provided as a reference.
The functions are private, and are meant to be used only
through their logical id as provided by the AnimationMode
enumeration.
The tests should be updated as well to match the new
easing functions.
The current Alpha value is an unsigned integer that can be used
implicitly as a fixed point value. This makes writing an alpha
function overshooting below and above the current range basically
impossible without complicating an already complex code, and
creating weird corner cases.
For this reason, the Alpha value should be defined as a floating
point normalized value, spanning a range between 0.0 and 1.0; in
order to allow overshooting, the valid range is extended one unit
below and one unit above, thus making it -1.0 .. 2.0.
This commit updates the various users of the ClutterAlpha API
and the tests cases.
This commit also removes all the current alpha functions exposed
in the public API.
To avoid clashing with all the scripted changes, clutter-fixed.h and
clutter-units.h were manually converted to internally use floats instead of
16.16 fixed numbers.
Note: again no API changes were made in Clutter.
To deal with all the corner cases that couldn't be scripted a number of patches
were written for the remaining 10% of the effort.
Note: again no API changes were made in Clutter, only in Cogl.
This is the result of running a number of sed and perl scripts over the code to
do 90% of the work in converting from 16.16 fixed to single precision floating
point.
Note: A pristine cogl-fixed.c has been maintained as a standalone utility API
so that applications may still take advantage of fixed point if they
desire for certain optimisations where lower precision may be acceptable.
Note: no API changes were made in Clutter, only in Cogl.
Overview of changes:
- Within clutter/* all usage of the COGL_FIXED_ macros have been changed to use
the CLUTTER_FIXED_ macros.
- Within cogl/* all usage of the COGL_FIXED_ macros have been completly stripped
and expanded into code that works with single precision floats instead.
- Uses of cogl_fixed_* have been replaced with single precision math.h
alternatives.
- Uses of COGL_ANGLE_* and cogl_angle_* have been replaced so we use a float for
angles and math.h replacements.
This simplifies the mucking about with the model-view matrix that was previously
done which improves its efficiency when scaling is necessary.
Notably: There should now be no performance advantage to using
ClutterCloneTexture as a special case clone actor since this method is just as
efficient.
The unit test was renamed to test-actor-clone.
Many use cases for clonning an actor don't require running a shader on the
resulting clone image and so requiring FBOs in these cases is overkill and
in-efficient as it requires kicking and synchronizing a render for each clone.
This approach basically just uses the paint function of another actor to
implement the painting for the clone actor with some fiddling of the model-
view matrix to scale according to the different allocation box sizes of
each of the actors.
A simple unit test called test-actors2 was added for testing.
It's more sensible to use 2^n-1 for a max tile-waste value rather
than 2^n, so change the value default from 64 to 63. Example:
191 and 192 will both be sliced to 128+64 rather than having
191=>128+64, 192=>256.
http://bugzilla.openedhand.com/show_bug.cgi?id=1402
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
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 the stage in the EGL native backend only has one size, and it
is determined at realization, we can simply set the SYNC_MATRICES
private flag and let _clutter_stage_maybe_setup_viewport() set up
the GL viewport at the first redraw.
Both clutter_alpha_new_with_func() and clutter_alpha_set_func()
will not register a global alpha function, so we need to update
the documentation to explicitly say so.
The animation mode parameters and properties are now slightly
anonymous unsigned longs, so we need to clarify in the documentation
that the user should either pass a ClutterAnimationMode value or
the result of registering an alpha function.
The animation mode symbolic id might come from the AnimationMode
enumeration or from the clutter_alpha_register_*() family of
functions. For this reason, we should use a gulong instead of
ClutterAnimationMode whenever we have an "animation mode" parameter
or property.
In order to unify alpha functions and animation modes in ClutterAlpha
we should be able to register alpha functions and get a logical id
for them; the logical id will then be available to be used by
clutter_alpha_set_mode().
The registration requires API changes in ClutterAlpha constructors
and methods. It also provides the chance to shift ClutterAlpha
towards the use of animations modes only, and to alpha functions
as a convenience API for language bindings alone.
It looks like the changes to cogl-gles2-wrapper.h were accidentally
committed to the actual file instead of the patch in commit
de27da0e. This commit moves the changes back into the patch so
cogl-gles2-wrapper.h is reverted back to master.
The patches have been updated to apply cleanly.
The patches for the g_warnings in clutter-actor.c have been removed
because master now uses CLUTTER_UNITS_FORMAT so they aren't
necessary. The clutter-units.h patch now sets CLUTTER_UNITS_FORMAT to
'f'.
The changes from the GL version of cogl-texture.c have been mirrored
in the GLES version. This adds the cogl_texture_new_from_bitmap
function and fixes the build errors.
If you try to use the CLUTTER_ACTOR_IS_* macros defined in ClutterActor
like this:
typedef struct { unsigned int reactive : 1; } foo_t;
foo_t f; f.reactive = CLUTTER_ACTOR_IS_REACTIVE (actor);
It will blow up because while the macros evaluate to 0 they can also
evaluate to non-zero values. Since most of the boolean flags in
Clutter and Clutter-based code are going to be stored like in the
example above, we should change the macros and let them evaluate
stricly either to 0 or to 1.
The Effects API and all related symbols have been superceded by
the newly added Animation API and clutter_actor_animate().
This commit removes the Effects implementation, the documentation
and the interactive test/example code.
The ::load-finished signal is emitted only when loading a texture
using clutter_texture_set_from_file(). Since this breaks user
expectations and consistency, we should also emit ::load-finished
when loading a texture from image data.
* async-textures:
Whitespace fixes in ClutterTexture
[async-loading] Do not force the texture size on async load
[async-loading] Update asynchronous image loading
Add API for extracting image size from a file
Update/clean and apply the async-texture patch from bug #1144
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.
* animation-improvements:
[docs] Add ClutterAnimatable to the API reference
Add license notice to ClutterAnimation files
[docs] Update the ClutterAnimation section
[animation] Extend ClutterAnimation support to all objects
[animation] Use ClutterAnimatable inside Animation
[animation] Add ClutterAnimatable
[animation] Allow registering custom progress function
[animation] Interval::compute_value should return a boolean
Animate ClutterColor properties
ClutterText already has code to try to preserve the x position when
moving up or down. A target x-position is stored and the cursor is
positioned at the nearest point to that in the appropriate line when
up or down is pressed. However the target position was never cleared
so it would always target the x-position of the cursor from the first
time you pressed up or down.
To fix this the patch clears the target position in set_position and
then sets it after the call in real_move_up/down. That way pressing
up or down sets the target position and any other movement will clear
it.
To get an index for the pixel position in the line
pango_layout_line_x_to_index is used. However when x is greater than
the length of the line then the index before the last grapheme is
returned which was causing it to jump to the penultimate
character. The patch makes it add on the trailing value so that it
will jump to the last character.
The old function ended up returning the length of the string when pos
was zero. This caused it to insert characters at the end when the
cursor was at the beginning of the string.
If an unbound control key is pressed (such as Ctrl+R) it would insert
a rectangle into the text.
Also zero is considered a valid unicode character by
g_unichar_validate so pressing a key such as shift would cause the
current selection to be deleted. The character isn't actually inserted
because insert_unichar disallows zeroes.
The GLES 2 wrapper needs to set up some state before each
draw. Previously this was acheived by wrapping glDrawArrays. Since the
multiple-texture-rectangle branch merge, glDrawElements is used
instead so we also need a wrapper for that.
It was also directly calling glBindTexture. GLES 2 uses a wrapper for
this function so that it can cope with GL_ALPHA format textures. The
format of the current texture needs to be stored as well as the target
and object number for this to work.
The BindingPool constructor should only check for duplicate pools
and then set the :name constructor-only property. If a BindingPool
is created without a name we also make a fuss about it.
It is also possible to simply dispose of a binding pool using
g_object_unref(), as long as it has been created by using
clutter_binding_pool_new() or directly with g_object_new(). Only
BindingPools attached to a class are not owned by the user.
ClutterBindingPool is already "problematic" in terms of memory
management for language bindings and gobject-introspection. It
also lacks a GType.
Turning ClutterBindingPool into a GBoxed would not make much
sense, since it does not adhere to the copy/free semantics. It
could be referenced/unreferenced, but in that case we can just
as well use GObject as a base class instead of reimplemeting
a ref-counted object and then boxing it.
ClutterBindingPool is obviously a terminal class, so we just
hide the instance and class structures.
The size of the texture as retrieved by the filename should
be set as the image size, not as the actor size, in order to
respect the :sync-size property.
When the asynchronous loading process terminates, we queue
a relayout so that the scene is updated.
Provide a main loop-based fallback to the asynchronous loading in
case the GLib threading support hasn't been enabled. This also
allows us to clean up the asynchronous loading machinery and have
it behave consistently across different scenarios.
Emit the ::load-finished even if the asynchronous loading from
disk was not enabled.
Finally, block clutter_texture_set_from_file() until we have an
image width and height, so that querying the texture actor size
after set_from_file() will still yield the correct result even
when asynchronous loading is set.
For the asynchronous loading we need a function call that parses
a file, given its path, and retrieves the image width and height.
This commit adds cogl_bitmap_get_size_from_file() to the CoglBitmap
API.
Add a ClutterStage::queue-redraw signal.
The purpose of this signal is to allow combining the Clutter redraw
idle with another redraw idle such as gtk's (or any other one really;
this is desirable anytime Clutter is not the only thing drawing to
a toplevel window).
To override the default, you would connect to ::queue-redraw and then
stop the signal emission.
By creating an ARGB texture for 24bpp pixmaps we were exposing an undefined
alpha channel to the blending and texture combine stages which resulted in
nasty artefacts. (This issue was seen on i945 + DRI2)
Since we only update the GL viewport when we receive a ConfigureNotify
event on X11, we also need a function to allow other toolkits to tell
a stage that the viewport should be updated.
This commit adds clutter_stage_ensure_viewport(), a function that simply
sets the private SYNC_MATRICES flag on the stage and then queues a
redraw.
This function should be called by libraries integrating Clutter with
other toolkits, like clutter-gtk or clutter-qt.
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.
Some of the read-write properties of ClutterText were missing
an implementation in clutter_text_get_property(), as well as
the :position and :selection-bound properties being wrongly
converted from fixed point to integer, passing through floating
point values.
ClutterUnits should not be used interchangeably as, or with
ClutterFixed values. ClutterUnits should also not be assumed
to be integers.
This commit fixes the last few improper usages of ClutterUnit
values, and adds a CLUTTER_UNITS_FORMAT macro for safely printing
ClutterUnit values with printf().
* animatable-iface:
[docs] Add ClutterAnimatable to the API reference
Add license notice to ClutterAnimation files
[animation] Use ClutterAnimatable inside Animation
[animation] Add ClutterAnimatable
Instead of limiting the use of ClutterAnimation to ClutterActor
instances, relax the constraint to include all GObject classes.
ClutterAnimation is not using actor-specific API, since it is
only using properties.
The only actor-based API is the clutter_actor_animate() family
of functions.
ClutterAnimation should check if the object is implementing the
Animatable interface, and if so delegate to it the computation
of the value along the interval initial and final value, depending
on the progress.
The ClutterAnimatable interface is meant to be used by GObject
classes to override the value computation for an animatable
property within the boundaries of an interval.
It is composed of a single virtual function, animate_property();
its implementation will receive the ClutterAnimation used to
animate the object; the property name; the initial and final
interval values; and the progress factor as retrieved by the
Alpha object bound to the Animation instance.
A ClutterInterval can change the way the progress is computed
by subclassing and overriding the ::compute_value() virtual function.
It should also be possible to register a custom progress function
in the same way it is possible to register a custom transformation
function between two GValues.
This commit adds an internal, global hash table that maintains a
GType <-> progress function association; each ClutterInterval
will check if there is a progress function registered for the
GType of the initial and final values of the interval and, if
it has been found, it will call it to compute the value of the
interval depending on the progress factor.
If the computation of the interval value depending on the progress
was not successful, ClutterInterval::compute_value() should return
this information to the caller.
Bug 1289 - Draw multiple glyphs at once
The multiple-texture-rectangle branch adds a new Cogl texture function
called cogl_texture_multiple_rectangles which is used to draw multiple
rectangles out of a texture using a single GL call. This is
significantly faster than drawing the rectangles with individual calls
on some platforms. The Pango renderer now uses this to speed up
rendering.
The conflicts are just due to the whitespace fixes in cb569a5.
Conflicts:
clutter/cogl/gl/cogl-context.c
clutter/cogl/gl/cogl-context.h
clutter/cogl/gl/cogl-texture.c
An editable ClutterText should not use pango_layout_set_markup(),
as the contents of the text actor will not match the text.
Only read-only text actors should parse the contents for Pango
markup.
If the Text actor is neither editable nor has its cursor set
to visible, then we should not be ensuring the cursor position.
This fixes a failure in the conformance test unit for the
layout cache.
Merge branch 'text-actor'
* text-actor: (108 commits)
Re-align ClutterText header file
[text] Fix cursor sizing
Comments and whitespace fixes to ClutterText
[docs] Add newly added :single-line-mode accessors
Update the ignore file
[tests] Add text field interactive test
[text] Add single-line-mode to ClutterText
[text] Fix the deletion actions
[text] Use cached length when possible
[tests] Add unit for the ClutterText:password-char property
[docs] Update the Text section
[text] Coalesce text visibility and password character
Allow localizations to change the text direction
Clean up the update_pango_context() function
Pass the PangoContext, not the MainContext
Revert the logic of the PangoContext check
Remove the binding pool entry from the list
Remove BindingPool::list_actions()
Add ClutterActor::create_pango_context()
Rename the PangoContext creation functions
...
The cursor should be slightly smaller than the height of the actor, to
allow for painting a border. Let's pad it by 1 pixel on the top and 1
on the bottom.
Also, we should use the cursor size everywhere and not use hardcoded
magic numbers.
Allow using ClutterText as a single line text field. This is useful for
text fields that accept just a single line of contents by default, and
respond to the Enter key press to execute some action.
The :single-line-mode property enables this behaviour inside ClutterText
by clipping and scrolling the contents of the PangoLayout if they do
not fit the allocated width of the Text actor.
When using the delete-prev action from the end of the text we end
up either missing the first glyph we have to delete or falling
through the last one in the text.
This commit fixes both issues.
Since clutter_text_set_text() measures the length of the text
each time, we should use the cached length instead of recomputing
the text length each time. This should save us some time when
dealing with long, multi-byte texts.
The rest of Cogl expects the texture mode to be GL_MODULATE so it
needs to be restored after calling cogl_material_rectangle. Otherwise
cogl_texture_rectangle will fail to blend with the Cogl color properly
and all of the labels will be black.
Using two properties to set a password entry can be construed as
both cumbersome and a gtk-ism. And rightly so on both counts.
The :text-visible property has also conflicting semantics with the
:cursor-visible one: while the latter hides the cursor, the former
changes the display of the contents of the Text actor. It is, thus,
not a matter of "visibility" but of "rendering".
Instead of setting the :text-visible and :invisible-char properties
to have a password text field, the Text actor should just have a
single :password-char property holding a Unicode character. If the
value of the :password-char is non-zero, the Text actor will use the
Unicode character to render the contents of the text entry.
This commit removes the following methods:
clutter_text_set_text_visible()
clutter_text_get_text_visible()
clutter_text_set_invisible_char()
clutter_text_get_invisible_char()
And the following properties:
ClutterText:text-visible
ClutterText:invisible-char
In favour of:
clutter_text_set_password_char()
clutter_text_get_password_char()
And:
ClutterText:password-char
Thus making obvious what use the property and accessor methods are
for and simplifying the process of creating a simple password text
field to:
text = clutter_text_new ();
clutter_text_set_password_char (CLUTTER_TEXT (text), '*');
The locale translators of Clutter are also the ones that should set
the default direction of the text in a Clutter user interface.
This commit adds a translatable string that defines the direction
of the text; the translation authors will change it to the correct
value and that will determine the default direction.
The default text direction can be overridden by using the
CLUTTER_TEXT_DIRECTION environment variable, or by using the
--clutter-text-direction command line switch. In any other case,
the locale will determine the text direction, as it should.
It was always reading one pixel lower than requested. If y was 0 then
it would try to read below the lowest line.
Thanks to Geoff Gustafson for spotting.
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>
When updating the PangoContext with the current options (font name,
options, resolution) pass the PangoContext instead of the Clutter
MainContext structure pointer.
When removing a binding entry from the binding pool we should not
only remove it from the hash table, but also from the linked list
we use to iterate over inside the block/unblock_action() pair.
The clutter_binding_pool_list_actions() was not implemented. The
utility of a call listing all the action names is also debatable:
all the functions related to the key bindings take the key symbol
and modifiers -- except the block_action() and unblock_action()
pair.
Sometimes an actor needs to set specific font rendering options on
the PangoContext without changing settings for every other text-rendering
actor.
In order to do this, we need a new public method to create a Pango
context object -- preset with all the default settings -- owned by the
developer and not shared with the rest of Clutter.
This new method is called clutter_actor_create_pango_context(); while
it does not strictly depend on a ClutterActor, it is a good idea to
have it inside the ClutterActor API to map the current get_pango_context()
method and in case we start storing screen-specific data to the Actor
itself during the 1.x API cycle.
The _clutter_context_create_pango_context() should create a new
context; the function returning the PangoContext stored inside the
MainContext structure should be named _get_pango_context() instead.
The following functions are fixed:
clutter_animation_set_actor
clutter_animation_set_timeline
clutter_animation_set_alpha
This is related to bug 1392 which discusses the problem for
behaviour_set_alpha.
Bug 1392 - behaviour_set_alpha set same alpha twice lead to warning
and destroy the input alpha
The following functions are fixed:
clutter_actor_set_shader
clutter_alpha_set_timeline
clutter_behaviour_set_alpha
clutter_clone_texture_set_parent_texture
They either now reference the new value before destroying the old
value, or just return immediately if the values are the same.
It previously attempted to set the mode on the alpha using
clutter_animation_set_mode_internal, but this was setting the mode on
priv->alpha. At that point in the code priv->alpha is always NULL.
clutter_animation_set_mode_internal now takes a parameter to specify
which alpha to modify.
As of now, a key binding installed into a BindingPool is always there
and cannot be changed.
This is problematic for sub-classes trying to override the callback
or the action for a given key binding.
This commit adds the ability to override the closure for an existing
key binding inside a binding pool -- assumed the caller knows the
key symbol and modifiers used to install the key binding in the first
place.
Otherwise the call to clutter_alpha_set_func sets the mode back to
CLUTTER_CUSTOM_MODE so clutter_alpha_get_mode won't get back the same
value that was set.
* units-rework:
[texture] Do not mix fixed point and units values
[tests] Fix the actor detection
[units] Do not use fixed point and units interchangeably
The API has been changed to take an explicit length for the number of
texture coordinates passed, and it's now documented that if there are
more layers to the current material than the number of texture coords
passed, then default coordinates will be generated for the other
layers.
cogl_material_rectangle should now handle the case where a single
sliced texture is supplied as a material layer by falling back to
cogl_texture_rectangle. We are nearly at the point that
cogl_texture_rectangle could be deprecated. A few issues remain
though, such as not considering waste in cogl_material_rectangle.
The other colors of a material; such as the ambient and diffuse color are
only relevent when we can enable lighting. This adds a basic unlit
color property.
Later cogl_set_source_color can be integrated to either modify the color
of the current source material, or maintain a special singlton CoglMaterial
that is modified by calls to cogl_set_source_color and implicitly made
current.
This flattens the three functions: cogl_material_flush_gl_material_state,
.._flush_gl_alpha_func and .._flush_gl_blend_func into one:
cogl_flush_material_gl_state which doesn't takes a material handle. (the handle
is instead taken from the context.)
This has allows us to avoid re-submitting some state to OpenGL when the
material has not been replaced.
Note: Avoiding redundant state changes for material layers isn't dealt with
in this patch.
This converts clutter-texture to use the new CoglMaterial API instead of
cogl_texture_rectangle.
This change does not add multi-texturing support to Clutter, it's more about
aiming to deprecate cogl_texture_rectangle, and moving everything over to the
cogl_set_source(material); cogl_draw_somthing(); coding pattern.
With this patch, the code can be built with/without CoglMaterial support so we
can do comparisons of the old/new code for a transient period. (look for the
USE_COGL_MATERIAL define)
Note: The FBO paths haven't currently been tested, so they may need some
tweaks.
Removed trailing white space from the following files:
- clutter-clone-texture.c
- clutter-texture.c
- clutter-texture.h
- cogl/cogl-texture.h
- cogl/gl/cogl-context.c
- cogl/gl/cogl-texture.c
- cogl/gl/cogl-context.h
The direction of the text depends on the locale, and it is the
basic setting needed to enable internationalization of user
interfaces.
This commit allows setting the direction of the PangoContext instance
used by Clutter by using the CLUTTER_TEXT_DIRECTION environment
variable, or by passing the --clutter-text-direction command line
argument. Valid values are:
ltr - for left-to-right locales
rtl - for right-to-left locales
The default is LTR.
Ideally, this should be a value set by the localization teams on the
PO file, but this step requires some build system surgery to allow
the translation of the Clutter strings.
When calling clutter_backend_get_font_name(), if no default font
name has previously been set, we just set the default and return
a pointer to it - like we do for the font options.
Instead of storing the default font name and size as a pre-processor
macro, use the newly added ClutterBackend API to retrieve the current
default font from the backend.
The default backend stores some of the global defaults, like the
font options, text resolution, double click settings. It should also
store the default font name, to allow various text-based actors to
share the same settings.
When the font name changes, the ::font-changed signal is emitted,
to allow actors to pick up the change.
When the ClutterBackend notifies of changes in the resolution or
font options, update the PangoContext stored by Clutter's main
context. This allows changing the backend font-related settings at
runtime.
The PangoContext should be stored once, and inside the main
Clutter context. Each actor for which clutter_actor_get_pango_context()
has been called will hold a reference on the Pango context as well.
This makes it possible to update the text rendering for Clutter
by using only public API.
Rendering text inside an actor is pretty much impossible without
using internal API to create the various pieces like the PangoContext
and the font map.
Each actor should have the ability to create a PangoContext, which
is the only object needed to generate layouts and change the various
Pango settings.
This commit adds a clutter_actor_get_pango_context() function that
creates a PangoContext inside the ClutterActor private data and allows
the creation of PangoLayouts when needed. If the actor already
has a PangoContext, the same instance is returned.
The PangoContext is created only on demand.
The ClutterBackend instance at the moment lacks the ability to
notify runtime changes of the font options and the resolution.
For this reason, this commit adds a ::resolution-changed and a
::font-changed signals to the Backend class.
The ::resolution-changed signal is emitted when set_resolution()
is called with a different DPI; ::font-changed is emitted when the
cairo_font_options_t* changes from the default.
test-cogl-material now runs on GLES 1 using the PVR GLES1 SDK (though since
only 2 texture units are supported the third rotating light map doesn't show)
Note: It currently doesn't build for GLES 2.0
My previous work to provide muti-texturing support has been extended into
a CoglMaterial abstraction that adds control over the texture combine
functions (controlling how multiple texture layers are blended together),
the gl blend function (used for blending the final primitive with the
framebuffer), the alpha function (used to discard fragments based on
their alpha channel), describing attributes such as a diffuse, ambient and
specular color (for use with the standard OpenGL lighting model), and
per layer rotations. (utilizing the new CoglMatrix utility API)
For now the only way this abstraction is exposed is via a new
cogl_material_rectangle function, that is similar to cogl_texture_rectangle
but doesn't take a texture handle (the source material is pulled from
the context), and the array of texture coordinates is extended to be able
to supply coordinates for each layer.
Note: this function doesn't support sliced textures; supporting sliced
textures is a non trivial problem, considering the ability to rotate layers.
Note: cogl_material_rectangle, has quite a few workarounds, for a number of
other limitations within Cogl a.t.m.
Note: The GLES1/2 multi-texturing support has yet to be updated to use
the material abstraction.
Multitexturing allows blending multiple layers of texture data when texturing
some geometry. A common use is for pre-baked light maps which can give nice
lighting effects relativly cheaply. Another is for dot-3 bump mapping, and
another is applying alpha channel masks.
The dot-3 bump mapping would be really nice one day, but currently cogl doesn't
support lighting so that's not dealt with in this patch.
notable limitations:
- It can only texture rectangles a.t.m - and like cogl_texture_rectangle there
is no support for rotated texturing.
- Sliced textures are not supported. I think I've figured out how to handle
layers with different slice sizes at least for rectangular geometry, but I'm
not sure how complex it becomes once rotations are possible and texturing
arbitrary cogl_polygons.
- Except for this new API, cogl still doesn't know about more than one texture
unit, and so has no way of caching any enables related to other units. So that
things don't break it's currently necessary to disable anything to do with
additional units as soon as we are done with them which isn't ideal.
- No clutter API yet.
This follows the convention of GtkLabel/GtkEntry in GTK+ and the old
ClutterEntry.
It makes it easier to use strlen/strcmp etc on the output, since we can
assume that it is always a string.
This commit also updates the test unit for ClutterText to verify that
the clutter_text_get_text() function also returns an empty string when
a ClutterText actor has been created.
The clutter-private.h header already includes cogl-pango.h with
the correct inclusion path, because the main context stores a
pointer to the font map.
There is no need for clutter-text.c to include cogl-pango.h
again since it already includes clutter-private.h.
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>
The cairo pkg-config is crafted such that #include <cairo.h> should be used.
If building with a private build of cairo installed to a custom prefix
<cairo/cairo.h> can cause an un-intended cairo header to be picked up during
compilation due to /usr/include being in the header search path.
Our beloved math.h exports, from bits/mathcalls.h, a bare "y1" symbol.
Apparently, it's unthinkable for code including <math.h> to also declare
arguments or variable named "y0", "y1" and "yn".
Anyway, the quick fix already used elsewhere in Clutter's codebase is
to rename the colliding variables "y_0", "y_1" and "y_n" - and
obviously everything similar to them as well, using the same pattern.
The name of the parameter in the header and the one in the gtk-doc
annotation on top of a function must match.
Unfortunately, there is an index() function declared inside strings.h
which makes gcc complain for the "index" argument as soon as we
enable the extra compiler flags we use when distchecking.
Hence, we need to rename "index" to "index_" in the header and in
the source files.
* cairo-texture:
[cairo-texture] Remove the construct only restriction on surface size
[cairo-texture] Silently discard 0x0 surfaces
Re-indent ClutterPath header
Add a test case for the new cairo path functions
Add clutter_path_to_cairo_path and clutter_path_add_cairo_path
Warn instead of returning in the IN_PAINT check
Small documentation fixes
Print a warning when creating a cairo_t while painting
Do not set the IN_PAINT flag inside the Stage paint
Set the IN_PAINT private flag
[docs] Add ClutterCairoTexture to the API reference
Add ClutterCairoTexture
Require Cairo as a Clutter dependency
Conflicts:
Fix merge conflict in clutter/clutter-path.h
It is possible to change the surface size after construction with
clutter_cairo_texture_set_surface_size so it doesn't seem right to
restrict changing the properties.
clutter_cairo_texture_resize_surface_internal is called in a handler
for the notify signal. It is called there rather than directly in the
set_property handler so that changing both properties in a single
g_object_set will only cause one resize. The constructed override is
no longer needed.
resize_surface_internal will now bail out if the size of the surface
is already the right size.
Like we did for ClutterActor in commit cdb78ec4, fix ClutterTexture
usage of CoglFixed and ClutterUnit values without conversion between
the two types.
Clutter units are, at the moment, implemented as a value in fixed point
notation using the same format as CoglFixed. This is, though, an
implementation detail. For this reason, units should not be treated as
CoglFixed values and should be converted to and from fixed point using
the provided macros.
This commit updates the usage of units and fixed point values in
ClutterActor and rationalises some of the transformation code that
heavily relied on the equivalency between them.
Some drivers (e.g. Nvidia) get upset if you try to create multiple glx pixmaps
for the same server side pixmap object, even though you might have unique
client side names, we now avoid hitting this problem by destroying the current
glx pixmap early within clutter_glx_texture_pixmap_create_glx_pixmap.
The calculation for cubic bezier curves had an extra multiplication by
3 which was causing the curve to go over 1.0 very quickly. This had
the affect of making test-animation appear to complete much before the
completed signal is emitted.
The patch makes it cast to double before subtracting the original
value from the target value. Otherwise if the target value is less
than the original value then the subtraction will overflow and the
factor will be multiplied by a very large number instead of the
desired interval.
The problem is demonstrable using the border-width property of
ClutterRectangle.
The current CairoTexture can be created with a surface size of 0
by 0 pixels, but a warning will be printed.
Worse, the surface can be resized to be 0 by 0 pixels without a
warning. The :surface-width and :surface-height properties accept
a minimum value of 0, and not check is performed on either the
constructor or set_surface_size() parameters to enforce the "greater
than zero" rule.
The correct and consistent behaviour is to allow a 0 by 0 pixels
surface size everywhere; inside surface_resize_internal(), the
current surface will be destroyed and if either :surface-width or
:surface-height are set to 0, the resizing terminates.
Attempting to create a Cairo context from a CairoTexture with
either :surface-width or :surface-height set to 0 will result in
a warning.
This allows:
- creating a CairoTexture with :surface-width or :surface-height
set to zero and delaying the surface resize at a later point;
- resizing the surface to 0 by 0 pixels to destroy the image
surface used internally;
- increase the consistency in the usage of CairoTexture.
After fixing the cursor position issues around the initial
glyph of the layout, the selection position needs fixing as
well.
The fix is similar: check if the position of the selection
is 0 and provide a fast path by setting the offset to 0.
The gdouble value represents an interval along the path from 0.0 to
1.0. This makes more sense than using an alpha value because paths are
not directly related to ClutterAlphas and the rest of the Clutter API
tends to expose gdouble arguments.
This is the port of the patch attached to bug 1266:
ClutterLabel support for pango_layout_set_height()
to the ClutterText actor. This patch adds support for the
pango_layout_set_height() function inside the layout creation
and caching, so that setting the height of a ClutterText will
make PangoLayout try to fill out the given height before
ellipsizing the contents of the ClutterText actor.
The original patch is from Havoc Pennington.
This commit ports the patch to ClutterText and applies a small
change to the height computation pointed out by Behdad Esfahbod
on GNOME's Bugzilla:
http://bugzilla.gnome.org/show_bug.cgi?id=560931
That the layout heights when doing a size request should be
set to be G_MAXINT instead of -1.
Unfortunately, the patch seems to break the conformance suite
when setting the ellipsization on the layout.
The clutter_text_set_selection() function is a convenience
method for setting the cursor position and the selection
boundary to a given position in a single call, with sanity
checks for the positions.
The clutter_text_get_selection() function was not checking the
passed argument, and was still accessing the contents of the
Text actor using clutter_text_get_text().
This commit also adds the last few gtk-doc annotations missing
from ClutterText.
Instead of repeating the same code for the ::activate signal
emission, use the clutter_text_activate() function inside the
'activate' key binding handler.
The clutter_text_activate() function will emit the ::activate
signal if the :activatable property is set.
This function is useful for subclasses or application code, for
example if we are going to use ::captured-event or ::key-press-event
signal handlers to intercept the Return key and emit the ::activate
signal ourselves.
Instead of installing the line-start and line-end key bindings
using the bare ClutterBindingPool API, we can use the internal
clutter_text_add_move_binding(), which automatically installs
the same key binding with the Shift modifier mask.
This allows selecting when pressing Shift+Home or Shift+End.
The selection behaviour is still incorrect around the zeroeth
position, with all the text after the first line being selected.
We can control the width of the cursor when painting by using
a simple property.
The magic -1 number passed to the setter method will reset the
cursor size to the default one of 2px.
The getter method will return an unsigned integer with the
current size.
Moving the text by a "page" depends on being able to define a
"page size" in terms of lines of text. Since we don't define
something similar to an Adjustment that allows us to handle this
behaviour, we should defer the paging implementation to a higher
level class based on ClutterText.
Another fix for the key navigation behaviour around the zeroeth
glyph in the layout.
This commit adds a fast path for for the zero index when the
cursor position is set as zero, in case we are using the line-start
or line-end key bindings, similarly to what we did in commit
be64cbcdc2 for the move-up and
move-down bindings.
The behaviour of ClutterText around the initial position is still
a little bit erratic.
This commit fixes the key navigation with Up and Down arrows around
the first line of text.
We loose precision with a direct conversion for PangoUnits to
pixels, so we should do the conversion as needed, inside the
callers of clutter_text_position_to_coords().
We don't allow changing the cursor geometry inside the ::cursor-event
signal handlers; for starters, it would make binding the signal a
huge mess, and it would also potentially break the whole actor.
The ClutterParamSpecFixed constructor is declared in the header
as taking ClutterFixed values, but the implementation takes
ClutterUnit values instead. This obviously works because fixed
and units are exactly the same type.
This commit fixes the wrong parameters.
Fix the CairoTexture description, and some of the comments inside
the code, especially with regards to the alpha channel unpremultiplication
that we have to perform each time we upload the image surface to
GL.
If you create a Cairo context in the middle of a paint run and then
you destroy it, the CairoTexture will have to upload the contents of
the image surface to the GL pipeline. This usually leads to slow
downs and general performance degradation.
ClutterCairoTexture will warn to the console if Clutter has been
compiled with the debug messages and if create() or create_region()
are called while an actor is in the middle of a paint.
Since the CLUTTER_ACTOR_IN_PAINT private flag is set as part
of the paint process by clutter_actor_paint(), there is no
need to set it inside the ClutterStage paint function.
When calling clutter_actor_paint() we should be setting the
CLUTTER_ACTOR_IN_PAINT private flag. This allows signalling
to each Actor subclass that we are effectively in the middle
of a paint sequence. Actor subclasses can check for this
private flag and act based on its presence - for instance to
avoid recursion, or to detect performance degradation cases.
Move the ClutterCairo actor from a separate library to an in-tree
actor.
ClutterCairoTexture is a simple texture subclass that allows you
to retrieve a Cairo context for a private image surface. When the
Cairo context is destroyed it will cause the image surface
contents to be uploaded to a GL texture.
The image surface used is not hardware accelerated.
If we create the PangoContext for ClutterText inside the class
initialization we might not have a Clutter main context yet.
Ideally, we should store the Pango context inside the main context
and create it on clutter_init(), but for now we can lazily create
the PangoContext when we initialize a ClutterText instance for the
first time.
For the time being, just don't include them or compile them; the
files will be removed from the repository as soon as all the
documentation annotations have been ported over to ClutterText.
We allow KeyEvents with a key symbol of '0' to fall through only
if they are marked as synthetic. Otherwise we discard them without
mercy.
Synthetic events are useful to test ClutterText behaviour; in fact,
we do use them inside the test suite exactly for that reason.
I understand we are not Pascal developers, and we don't have to
use cute and cuddly names like "i_am_an_integer_counter", but
a ClutterButtonEvent should be stored inside an "event" variable.
Using "bev" instead? Mmmh, not so much.
ClutterText should use the paint opacity for both text and
cursor.
ClutterLabel had the wrong behaviour, as it set the actor's
opacity using the text color's alpha channel, and ClutterEntry
completely disregarded the actor's opacity when painting the
cursor.
This commit harmonizes the ClutterText behaviour to always
use a composition of the actor's paint opacity and the text
and cursor alpha channel values, thus behaving more
consistently with the rest of Clutter.
When inserting text on a key press event we should also truncate
the selection.
We should not truncate the selection when inserting any Unicode
character, since changing the selection also changes the cursor
position - and one of the invariants we inherited from ClutterEntry
is that inserting characters programmatically does not change the
cursor position.
If a selection has been truncated inside a key binding handler,
we should just return and let the usual key event handler continue.
This fixes the case where we deleted a selection using the Delete
or the Backspace keys.
ClutterText should use the newly added ClutterBindingPool API to
handle key events, instead of its homegrown code.
This commit removes the action/mapping code and defers the entire
key binding matching to a ClutterBindingPool created inside the
Text class initialization function.
The clutter_text_get_chars() function returns a section of the
contents of the Text actor, delimited by a start and an end position.
This commit adds the implementation for that function and a test
unit that guarantees the offset-to-bytes computations are correct.
The :cursor-color-set property is a read-only property that
reflects whether the ClutterText actor is going to use the
color set inside the :cursor-color property when painting
the cursor.
We should re-use the offset_to_bytes() implementation from ClutterEntry
as it guaranteed some behaviour and sanity checks that we want to keep
inside ClutterText.
A ClutterText can be put in "password mode" by setting the
text as "invisible": every character inside the Text actor's
contents will be replaced when building the Pango layout with
a specific Unicode character.
The Unicode character is set to '*' by default, but the user
can be changed using the provided API.
ClutterText should have the same properties as ClutterLabel.
While at it, we can finally fix the disconnect between the wrap
and wrap-mode properties and its accessors, that we perpetuated
from GtkLabel.
The ClutterText:line-wrap property and ClutterText:line-wrap-mode
are mapped to the set_line_wrap(), get_line_wrap() and
set_line_wrap_mode(), get_line_wrap_mode() accessor functions
respectively. This should simplify bindings the Vala ones that
map a property into a method.
Bug 1003 - Add clutter_actor_take_key_focus()
The grab_key_focus() method is just a simple wrapper around
clutter_stage_take_key_focus() that removes the need to get
the ClutterStage of an actor in order to set the key focus.
Based on a patch by Xan López.
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
Signed-off-by: Øyvind Kolås <pippin@linux.intel.com>
ClutterText replaces ClutterLabel, so it should expose the same
kind of API - ideally with the minimal amount of changes, so that
the porting is trivial.
The TidyText actor is meant as a replacement for both ClutterLabel
and ClutterText.
Any text-displaying and editing actor should derive from ClutterText
and implement the various visual cues to differentiate the editable
from the non-editable state. Those visual cues usually belong to
a high-level toolkit, especially if themeing is involved.
When the apply_transform_to_point() and its relative variant
landed in Clutter 0.3, the initial approach was to modify the
passed vertex as an in-out parameter. This was later dropped
in favour of a more consistent out parameter.
Unfortunately, the implementation never changed: both methods
where modifying the passed vertex with the partial results of
the computations.
This commit copies the contents of the "point" ClutterVertex
argument inside a stack variable and, for good measure, constifies
the argument.
Thanks to Thomas Steinacher for catching this in Python.
* clutter/cogl/gl/cogl-defines.h.in:
* clutter/cogl/gl/cogl-context.h:
* clutter/cogl/common/cogl-mesh.c: Rename the glBufferDataSub
function to glBufferSubData. When calling glXGetProcAddress with
the former Mesa returns a stub dispatch function which will
segfault if you try to use it. With NVIDIA it returns NULL so
_cogl_features_init decides the card doesn't have VBO support.
* clutter/clutter-behaviour-ellipse.c (actor_apply_knot_foreach):
Don't set the depth if there is no x or y tilt. That way it can
still be used in conjunction with ClutterBehaviourDepth. Thanks to
Tonny Tzeng.
There's no point in clearing the index array because it is always the
same sequence of indices regardless of the vertices. Instead it is
just added to when there are more vertices than ever before.
* clutter/Makefile.am:
* clutter/clutter.h: Add ClutterBindingPool to the build.
* clutter/clutter-binding-pool.c:
* clutter/clutter-binding-pool.h: Add ClutterBindingPool, a data
structure meant to hold (key symbol, modifiers) pairs and associate
them to a closure. The ClutterBindingPool can be used to install
key bindings for actors and then execute closures inside the
key-press-event signal handlers, removing the need for big
switch() or if() blocks for each key.
* clutter/clutter-event.c: Consistently use "key symbol" instead
of "key value".
* clutter/clutter-event.h: Add more modifier masks.
* clutter/clutter-marshal.list:
* tests/conform/Makefile.am:
* tests/conform/test-binding-pool.c:
* tests/conform/test-conform-main.c: Add ClutterBindingPool
conformance test.
* tests/interactive/Makefile.am:
* tests/interactive/test-binding-pool.c: Add interactive test (and
example code) for the ClutterBindingPool usage.
Bug 1309 - clutter_timeline_new and clutter_timeline_set_speed
have two standard of the fps limitation
* clutter/clutter-timeline.c:
(clutter_timeline_class_init): Set the maximum value of the
:fps property to be G_MAXUINT. (Zhang Wei)
* clutter/clutter-path.h:
* clutter/clutter-path.c: Implementation of new ClutterPath object
to represent a path combining straight line and bezier curve
elements.
* clutter/clutter.h: Include clutter-path.h and remove
clutter-behaviour-bspline.h
* tests/interactive/test-threads.c (test_threads_main):
* tests/interactive/test-script.c:
* tests/interactive/test-behave.c (test_behave_main): Use new path
API
* clutter/clutter-effect.c: Use the new ClutterBehaviourPath API.
* clutter/clutter-bezier.h:
* clutter/clutter-bezier.c: Moved bezier curve handling code out
from clutter-behaviour-bspline.c to a separate file.
* clutter/clutter-behaviour-path.h:
* clutter/clutter-behaviour-path.c: Reimplemented to work with a
ClutterPath
* clutter/clutter-behaviour-bspline.h:
* clutter/clutter-behaviour-bspline.c: Removed
* clutter/Makefile.am: Add clutter-path and clutter-bezier, remove
clutter-behaviour-bspline.
* tests/conform/test-path.c: New automatic test for ClutterPath
consistency
* tests/conform/test-conform-main.c (main): Add test_path
* tests/conform/Makefile.am (test_conformance_SOURCES): Add
test-path.c
* clutter/clutter-sections.txt: Add ClutterPath docs
* clutter/clutter.types:
* clutter/clutter-docs.xml:
* doc/reference/clutter/clutter-animation-tutorial.xml: Remove
mention of ClutterBehaviourBspline
* clutter/clutter-marshal.list: Add VOID:UINT
* clutter/cogl/gl/cogl-texture.c (cogl_texture_new_from_foreign,
(_cogl_texture_quad_hw, cogl_texture_polygon),
(_cogl_texture_quad_sw): Support GL_ARB_texture_rectangle textures
* clutter/glx/clutter-glx-texture-pixmap.c: Use rectangle textures
when NPOTs are not available or it is forced by the
CLUTTER_PIXMAP_TEXTURE_RECTANGLE environment variable.
* clutter/cogl/gl/cogl.c (cogl_enable): Allow enabling
GL_TEXTURE_RECTANGLE_ARB.
* clutter/cogl/cogl-path.h:
* clutter/cogl/common/cogl-primitives.c:
* clutter/cogl/common/cogl-primitives.h:
* clutter/cogl/gl/cogl-primitives.c:
* clutter/cogl/gles/cogl-primitives.c: Changed the semantics of
cogl_path_move_to. Previously this always started a new path but
now it instead starts a new disjoint sub path. The path isn't
cleared until you call either cogl_path_stroke, cogl_path_fill or
cogl_path_new. There are also cogl_path_stroke_preserve and
cogl_path_fill_preserve functions.
* clutter/cogl/gl/cogl-context.c:
* clutter/cogl/gl/cogl-context.h:
* clutter/cogl/gles/cogl-context.c:
* clutter/cogl/gles/cogl-context.h: Convert the path nodes array
to a GArray.
* clutter/cogl/gl/cogl-texture.c:
* clutter/cogl/gles/cogl-texture.c: Call cogl_clip_ensure
* clutter/cogl/common/cogl-clip-stack.c:
* clutter/cogl/common/cogl-clip-stack.h: Simplified the clip
stack code quite a bit to make it more maintainable. Previously
whenever you added a new clip it would go through a separate route
to immediately intersect with the current clip and when you
removed it again it would immediately rebuild the entire clip. Now
when you add or remove a clip it doesn't do anything immediately
but just sets a dirty flag instead.
* clutter/cogl/gl/cogl.c:
* clutter/cogl/gles/cogl.c: Taken away the code to intersect
stencil clips when there is exactly one stencil bit. It won't work
with path clips and I don't know of any platform that doesn't have
eight or zero stencil bits. It needs at least three bits to
intersect a path with an existing clip. cogl_features_init now
just decides you don't have a stencil buffer at all if you have
less than three bits.
* clutter/cogl/cogl.h.in: New functions and documentation.
* tests/interactive/test-clip.c: Replaced with a different test
that lets you add and remove clips. The three different mouse
buttons add clips in different shapes. This makes it easier to
test multiple levels of clipping.
* tests/interactive/test-cogl-primitives.c: Use
cogl_path_stroke_preserve when using the same path again.
* doc/reference/cogl/cogl-sections.txt: Document the new
functions.
fallbacks are being used
* glx/clutter-glx-texture-pixmap.c:
clutter_glx_texture_pixmap_using_extension now checks to see if
priv->use_fallback is TRUE not just that the tfp extension is
available.
border artifacts
* clutter/cogl/gl/cogl-texture.c: Set the wrap mode of a texture
on demand
Instead of setting the wrap mode once per texture at creation, it
is now changed whenever the texture is drawn. The previous value
is cached so that it isn't changed if the value is the same.
This is used in _cogl_texture_quad_hw to only enable GL_REPEAT
mode when the coordinates are not in the range [0,1]. Otherwise it
can pull in pixels from the other edge when the texture is
rendered off-pixel.
Most cards don't actually support GL_QUADS and they are deprecated in
GL 3.0 so there is a chance it will perform faster with GL_TRIANGLES
even though it has to submit two extra vertices.
The glyphs are queued into an array of rectangles instead of being
drawn directly. Whenever a different texture is used or the sequence
is complete the array is flushed.
This is based on a patch from Owen Taylor.
This takes an array of sets of 8 floats to describe the rectangles. It
tries to send the geometry with a single glDrawArrays as far as
possible. cogl_texture_rectangle is now just a wrapper around
cogl_texture_multiple_rectangles.
cogl_texture_quad_hw and _sw now just add vertices to the vertex
array. The last texture used is stored and if a different texture is
encountered then flushes the vertices. cogl_texture_rectangle always
flushes the vertices after calling either of the functions.
the test for whether to use hardware tiling. Previously it assumed
that texture coordinates are in increasing order but this is not
the case since bug 1057 was fixed. The texture coordinates are now
sorted later. It also allowed negative coordinates which doesn't
make sense if the texture has waste.
timelines are more than 52 and continue to remove them
* clutter/clutter-score.c (traverse_children): Don't destroy the
entry in the handler for REMOVE_BY_ID. It will be removed again
anyway in the call to g_node_traverse. This was causing a
crash. Thanks to zhangwei for spotting.
`_glDrawRangeElements@24'
Resolve glDrawRangeElements with cogl_get_proc_address instead of
calling it directly because functions defined in GL > 1.1 are not
directly exported under Windows.
* clutter/cogl/common/cogl-mesh.c: Use the function pointer from
the context
* clutter/cogl/gl/cogl-context.c (cogl_create_context): Initialise
function pointer.
* clutter/cogl/gl/cogl-context.h (CoglContext): Add a function
pointer
* clutter/cogl/gl/cogl-defines.h.in: Add a typedef for the
function pointer.
* clutter/cogl/gl/cogl.c (_cogl_features_init): Resolve
glDrawRangeElements
fault in trunk and incorrect appearance in clutter-0.8
* clutter/clutter-score.c (start_children_entries): Check whether
the child timeline is actually attached at a marker before
comparing whether the marker's name matches the marker
reached. This fixes a crash that happens when a marker is reached
on a timeline that also has child timelines attached at the
end. Thanks to zhangwei for spotting.
* clutter/clutter-actor.c:
(clutter_actor_set_property): Add sanity checks for NULL
boxed values when setting the rotation center.
* tests/interactive/test-animation.c:
(on_button_press): Add an example on how to use the rotation
properties to animate an actor.
* tests/interactive/test-pixmap.c (create_pixmap): Use a format
string instead of passing the error message directly to g_error.
* tests/interactive/test-easing.c (test_easing_main)
(on_button_press):
* tests/interactive/test-animation.c (on_button_press): Use
unsigned variables for the results from clutter_actor_get_size
otherwise it complains about the pointer signedness being
different.
* clutter/clutter-script.c (clutter_script_add_search_paths): Use
G_GSIZE_FORMAT instead of %d for a gsize parameter otherwise it
gets upset on 64-bit.
differences and improve maintainability.
* clutter/cogl/gl/cogl-context.h:
Adds a CoglTextureGLVertex typedef + texture_vertices and
texture_vertices_size members to CoglContext for using vertex arrays
like GLES does
* clutter/cogl/gl/cogl-context.c:
Initializes texture_vertices + texture_vertices_size members
* clutter/cogl/gl/cogl-internal.h:
Adds COGL_ENABLE_COLOR_ARRAY
* clutter/cogl/gl/cogl.c:
Add COGL_ENABLE_COLOR_ARRAY support to cogl_enable
* clutter/cogl/gles/cogl-context.h:
Change the CoglTextureGLVertex to use GLfloat for the position
and texture coord attributes and GLubyte for the color.
* clutter/cogl/gles/cogl-texture-private.h:
Adds a wrap_mode member like GL has.
* clutter/cogl/gl/cogl-texture.c
* clutter/cogl/gles/cogl-texture.c:
Improves the comparability of the files, such that the remaining
differences, better reflect the fundamental differences needed
between GL and GLES. Notably GL no longer uses glBegin/glEnd for
submitting vertices, it uses vertex arrays like GLES and this gives
a small but measurable fps improvement for test-text.
* clutter/cogl/cogl-shader.h: Add a function for setting an
integer uniform, similar to cogl_program_uniform_1f().
* clutter/cogl/gl/cogl-program.c: Implement the GL version
of cogl_program_uniform_1i().
* clutter/cogl/gles/cogl-program.c: Implement the GLES version
of cogl_program_uniform_1i().
Bug 1049 - Clutter doesn't support most GLSL uniforms (patch
by Chris Lord and Neil Roberts)
* README: Update release notes.
* clutter/Makefile.am:
* clutter/clutter-shader-types.[ch]: Add GValue types for
shader values.
* clutter/clutter-actor.[ch]: Update the shader API to use
the newly added GValue support for GLSL shader uniform
setters.
* clutter/clutter-shader.[ch]: Add float and integer convenience
API for single value GLSL uniform setters.
* clutter/cogl/cogl-shader.h: Add new uniform setters.
* clutter/cogl/gl/cogl-context.c:
* clutter/cogl/gl/cogl-context.h:
* clutter/cogl/gl/cogl-defines.h.in:
* clutter/cogl/gl/cogl-program.c:
* clutter/cogl/gl/cogl.c: Update the GL implementation of COGL
to handle the GLSL uniform setters.
* clutter/cogl/gles/cogl-gles2-wrapper.c:
* clutter/cogl/gles/cogl-gles2-wrapper.h:
* clutter/cogl/gles/cogl-internal.h:
* clutter/cogl/gles/cogl-program.c: Update the GLES 2.0 implementation
of COGL to handle the GLSL uniform setters.
* doc/reference/clutter/clutter-sections.txt:
* doc/reference/cogl/cogl-sections.txt: Update the documentation.
* tests/interactive/test-fbo.c:
* tests/interactive/test-shader.c: Update the shader tests.
* clutter/clutter-alpha.h:
* clutter/clutter-alpha.c:
(clutter_alpha_set_mode): Use a lookup table to find the alpha
function given the animation mode.
(clutter_exp_in_func),
(clutter_exp_out_func),
(clutter_exp_in_out_func): Add new exponential functions.
* clutter/clutter-script.c: Update the lookup table with the
new animation modes; match "linear" to the ramp-inc alpha
function.
* clutter/clutter-types.h: Add new AnimationMode values.
* tests/interactive/test-easing.c: Update the easing functions
test.
Bug 1014 - Clutter Animation API Improvements
* clutter/Makefile.am:
* clutter/clutter.h: Update the build
* clutter/clutter-types.h: Add AnimationMode, an enumeration
for easing functions.
* clutter/clutter-alpha.[ch]: Add the :mode property to
control the function bound to an Alpha instance using an
enumeration value. Also add six new alpha functions:
- ease-in, ease-out, ease-in-out
- sine-in, sine-out, sine-in-out
* clutter/clutter-deprecated.h: Deprecate the #defines for
the alpha functions. They will be replaced by entries in the
ClutterAnimationMode.
* clutter/clutter-interval.[ch]: Add ClutterInterval, an
object for defining, validating and computing an interval
between two values.
* clutter/clutter-animation.[ch]: Add ClutterAnimation, an
object responsible for animation the properties of a single
actor along an interval of values. ClutterAnimation memory
management is automatic. A simple wrapper method for
ClutterActor is provided:
clutter_actor_animate()
which will create, or update, an animation for the passed
actor.
* clutter/clutter-debug.h:
* clutter/clutter-main.c: Add a new 'animation' debug note.
* clutter/clutter-script.c: Clean up the alpha functions
whitelist, and add the new functions.
* doc/reference/clutter/Makefile.am:
* doc/reference/clutter/clutter-sections.txt: Update the
API reference.
* doc/reference/clutter/clutter-animation.xml: Renamed to
doc/reference/clutter/clutter-animation-tutorial.xml to
avoid clashes with the ClutterAnimation section.
* doc/reference/clutter/clutter-docs.sgml: Renamed to
doc/reference/clutter/clutter-docs.xml, as it was an XML
file and not a SGML file.
* tests/Makefile.am:
* tests/interactive/Makefile.am:
* tests/interactive/test-animation.c:
* tests/interactive/test-easing.c: Add two tests for the
new simple animation API and the easing functions.
* tests/interactive/test-actors.c:
* tests/interactive/test-behave.c:
* tests/interactive/test-depth.c:
* tests/interactive/test-effects.c:
* tests/interactive/test-layout.c:
* tests/interactive/test-multistage.c:
* tests/interactive/test-paint-wrapper.c:
* tests/interactive/test-rotate.c:
* tests/interactive/test-scale.c:
* tests/interactive/test-texture-quality.c:
* tests/interactive/test-threads.c:
* tests/interactive/test-viewport.c: Update interactive tests
to the deprecations and new alpha API.
* clutter/clutter-entry.c:
* clutter/clutter-label.c:
* clutter/clutter-rectangle.c:
* clutter/clutter-script.c:
* clutter/clutter-stage.c: Use the ParamSpecColor and GValue
API for ClutterColor-based properties.
Bug 1265 - ClutterScore doesn't emit 'started' signal (Bastian
Winkler)
* clutter/clutter-score.c: Emit the ::started signal.
* tests/interactive/test-score.c: Check the emission of the
Score signals.
* clutter/cogl/gles/cogl-gles2-wrapper.c:
Initialise the 'tex' sampler uniform to 0. The GLSL spec
specifically says that you must initialize sampler uniforms. This
fixes texturing for GLES 2 when using the PowerVR simulator via
software Mesa.
* clutter/cogl/common/cogl-mesh.c:
Make sure we use the appropriate cogl_wrap_gl* funcs as appropriate
* clutter/cogl/gles/cogl-gles2-wrapper.c
* clutter/cogl/gles/cogl-gles2-wrapper.h:
In our glColorPointer wrapper we needed to mark our color attribute
as normalized.
* tests/conform/Makefile.am:
When creating unit test symlinks we use the -l gtester option to
list tests, but when using the PVR SDK the test binary also spews
out some extra info that caused lots of random symlinks to be
created. We now grep for lines starting with a '/'
* tests/conform/test-mesh-contiguous.c
* tests/conform/test-mesh-mutability.c:
Use cogl_set_source_color instead of directly calling glColor4ub
* clutter/clutter-behaviour-ellipse.c:
(clutter_behaviour_ellipse_applied): Do not reset the depth
of the actors to which the Ellipse behaviour has been applied
to, unless the behaviour is going to update it because it has
a tilt on the X or Y axis.
(clutter_actor_get_paint_visibility): Be sure to return exactly
TRUE or FALSE instead of zero or some non-zero value in these
functions that return a gboolean. Thanks to Kai Wei for spotting.
* clutter/cogl/cogl-color.h:
* clutter/cogl/cogl-path.h:
* clutter/cogl/cogl-types.h:
* clutter/cogl/common/cogl-color.c: Deprecated cogl_color()
in favour of cogl_set_source_color() and friends; store the
CoglColor components as unsigned bytes instead of fixed point
normalized values; add functions for allocating, copying and
freeing CoglColor, for use of language bindings.
* clutter/cogl/cogl.h.in:
* clutter/cogl/cogl-deprecated.h: Added cogl-deprecated.h,
an header file containing the deprecation symbols similar
to clutter-deprecated.h.
* clutter/cogl/gl/Makefile.am:
* clutter/cogl/gl/cogl-texture.c:
* clutter/cogl/gl/cogl.c:
* clutter/cogl/gles/Makefile.am:
* clutter/cogl/gles/cogl-texture.c:
* clutter/cogl/gles/cogl.c: Update the GL and GLES implementations
of COGL after the CoglColor changes.
* clutter/clutter-actor.c:
* clutter/clutter-clone-texture.c:
* clutter/clutter-entry.c:
* clutter/clutter-label.c:
* clutter/clutter-rectangle.c:
* clutter/clutter-texture.c: Do not use CoglColor whenever it
is possible, and use cogl_set_source_color4ub() instead.
* clutter/pango/cogl-pango-render.c: Ditto as above.
* doc/reference/clutter/subclassing-ClutterActor.xml:
* doc/reference/cogl/cogl-sections.txt: Update the documentation.
* tests/interactive/test-cogl-offscreen.c:
* tests/interactive/test-cogl-primitives.c:
* tests/interactive/test-cogl-tex-convert.c:
* tests/interactive/test-cogl-tex-foreign.c:
* tests/interactive/test-cogl-tex-getset.c:
* tests/interactive/test-cogl-tex-polygon.c:
* tests/interactive/test-cogl-tex-tile.c:
* tests/interactive/test-paint-wrapper.c: Drop the usage of
CoglColor whenever it is possible.
coordinates
* clutter/cogl/gl/cogl-texture.c: Instead of sorting the vertex
and texture coordinates passed to cogl_texture_rectangle, just
swap both sets whenever the texture coordinates are backward.
* clutter/cogl/gl/Makefile.am (libclutterinclude_HEADERS):
* clutter/cogl/common/Makefile.am
(libclutter_cogl_common_la_SOURCES): Move cogl-mesh.h into the
headers for libclutter so that it will get installed.
* tests/conform/test-mesh-mutability.c (on_paint):
* tests/conform/test-mesh-interleved.c (on_paint):
* tests/conform/test-mesh-contiguous.c (on_paint): Use g_usleep
instead of sleep
* tests/conform/test-mesh-mutability.c (queue_redraw):
* tests/conform/test-mesh-interleved.c (queue_redraw):
* tests/conform/test-mesh-contiguous.c (queue_redraw): Added
missing return statement
* clutter/cogl/cogl-mesh.h: Add a declaration for
cogl_mesh_submit
* clutter/cogl/common/cogl-mesh.c (cogl_mesh_submit): Move the
documentation to cogl-mesh.h to match the rest of the functions
* clutter/cogl/cogl-mesh.h
* clutter/cogl/cogl-types.h
* clutter/cogl/cogl.h.in
* clutter/cogl/common/Makefile.am
* clutter/cogl/common/cogl-mesh-private.h
* clutter/cogl/common/cogl-mesh.c
* clutter/cogl/gl/cogl-context.c
* clutter/cogl/gl/cogl-context.h
* clutter/cogl/gl/cogl-defines.h.in
* clutter/cogl/gl/cogl.c
* clutter/cogl/gles/cogl-context.c
* clutter/cogl/gles/cogl-context.h
* doc/reference/cogl/cogl-docs.sgml
* doc/reference/cogl/cogl-sections.txt:
The Mesh API provides a means for submitting an extensible number of
per vertex attributes to OpenGL in a way that doesn't require format
conversions and so that the data can be mapped into the GPU (in vertex
buffer objects) for - hopefully - fast re-use.
There are a number of things we can potentially use this API for, but
right now this just provides a foundation to build on. Please read
the extensive list of TODO items in cogl-mesh.c for examples.
Please refer to the cogl-mesh section in the reference manual for
documentation of the API.
* tests/conform/Makefile.am
* tests/conform/test-conform-main.c
* tests/conform/test-mesh-contiguous.c
* tests/conform/test-mesh-interleved.c
* tests/conform/test-mesh-mutability.c:
Privides basic coverage testing for the mesh API.
Bug 1238 - [PATCH] Pack bitfields in ClutterTexturePrivate
* clutter/clutter-texture.c:
Using 'guint my_field : 1' for booleans to save space only
makes sense if you group all such fields together. Fix
grouping for ClutterTexturePrivate. Thanks to Owen Taylor for
patch.
* 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.
* clutter/clutter-main.c (_clutter_id_to_color): When using fuzzy
picking to pick a color for an actor, it would previously set the
fuzzy bit and then all but the most significant of the remaining
unused bits. This meant that for 16-bit displays it would end up
with a strange pattern for the unused bits like 1011 which could
cause it to round up. Now it just sets all but the most
significant of all of the unused bits giving a pattern like
0111. Thanks to Guy Zadickario for the patch.
* clutter/cogl/common/cogl-fixed.c (cogl_fixed_sin)
(cogl_angle_sin, cogl_angle_tan, cogl_fixed_sqrt): Replaced uses
of 1 + ~x with just -x which is equivalent and easier to
understand.
64-bit multiplication macro instead of COGL_FIXED_FAST_DIV for
calculating xmax as was done previously. This fixes
test-perspective and other tests that had a gone a bit skewiff.
called on complete
* clutter/clutter-score.c (start_children_entries): Use the name
of the marker to start as the data parameter and only start child
timelines that have the same marker name. Previously the
ClutterScore would just start all child entries when a marker was
reached or the timeline completed regardless of whether they were
added with a marker or not. Thanks to Mihail Naydenov for
reporting the bug.
Bug 1231 - Build fails in gles flavour in revision 3442
* clutter/cogl/gles/cogl-context.h: Fix remaining use of
ClutterFixed over CoglFixed. (Michael Boccara)
* clutter/clutter-timeline.c (timeline_timeout_func): Move the
code for firing the new-frame and marker-reached signals into a
separate static function so that it can also be called when the
last frame is reached. Also fix an issue where the frame numbers
were changed in the wrong direction when detecting missed markers
in a reversed timeline. Based on a patch by Michael Boccara.
* tests/test-timeline.c: Now tries to automatically verify whether
the test worked by keeping track of all the signal emissions. The
timelines are run a second time with an extra timeout that causes
delays to simulate skipped frames.
* clutter/clutter-texture.c: (clutter_texture_set_filter_quality),
(clutter_texture_get_filter_quality):
Fix up some logic, typos.
* clutter/glx/clutter-glx-texture-pixmap.c:
Improve support for mipmaped TFP textures.
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.
Bug 1219 - Clean up cogl.h
* clutter/cogl/cogl.h.in:
* clutter/cogl/cogl-offscreen.h:
* clutter/cogl/cogl-path.h:
* clutter/cogl/cogl-shader.h:
* clutter/cogl/cogl-texture.h:
* clutter/cogl/cogl-types.h: Split up the massive cogl.h file
into sub-header for each section of the API.
* clutter/cogl/gl/*:
* clutter/cogl/gles/*: Update the GL and GLES implementations
of COGL to cope with the new header structure.
* doc/reference/cogl/Makefile.am: Fix symbol retrieval.
Bug 1211 - Drop ClutterFeatureFlags usage from COGL
* clutter/cogl/cogl.h.in:
* clutter/cogl/gl/cogl.c:
* clutter/cogl/gles/cogl.c: Do not use ClutterFeatureFlags
when CoglFeatureFlags will do. This removes the last usage
of Clutter API inside COGL.
Bug 1210 - Add CoglColor API
* clutter/cogl/cogl-color.h:
* clutter/cogl/cogl.h.in:
* clutter/cogl/common/Makefile.am:
* clutter/cogl/common/cogl-color.c:
* clutter/cogl/gl/Makefile.am:
* clutter/cogl/gl/cogl.c:
* clutter/cogl/gles/Makefile.am:
* clutter/cogl/gles/cogl-texture.c:
* clutter/cogl/gles/cogl.c: Add a new color-type, to be used by
COGL. CoglColor is optimized to allow the minimum amount of
conversions possible for both GL and GLES implementations.
* clutter/clutter-actor.c:
* clutter/clutter-clone-texture.c:
* clutter/clutter-entry.c:
* clutter/clutter-main.c:
* clutter/clutter-rectangle.c:
* clutter/clutter-stage.c:
* clutter/clutter-texture.c: Use CoglColor when needed.
* clutter/pango/pangoclutter-render.c: Use CoglColor when needed.
* doc/reference/cogl/cogl-docs.sgml:
* doc/reference/cogl/cogl-sections.txt: Update the documentation.
* tests/test-cogl-offscreen.c:
* tests/test-cogl-primitives.c:
* tests/test-cogl-tex-convert.c:
* tests/test-cogl-tex-foreign.c:
* tests/test-cogl-tex-getset.c:
* tests/test-cogl-tex-polygon.c:
* tests/test-cogl-tex-tile.c:
* tests/test-paint-wrapper.c: Update the tests.
* README: Update release notes.
Bug 1209 - Move fixed point API in COGL
* clutter/cogl/cogl-fixed.h:
* clutter/cogl/cogl.h.in:
* clutter/cogl/common/Makefile.am:
* clutter/cogl/common/cogl-fixed.c: Add fixed point API, modelled
after the ClutterFixed. The CoglFixed API supercedes the ClutterFixed
one and avoids the dependency of COGL on Clutter's own API.
* clutter/cogl/common/cogl-clip-stack.c:
* clutter/cogl/common/cogl-primitives.c:
* clutter/cogl/common/cogl-primitives.h: Update internal usage of
ClutterFixed to CoglFixed.
* clutter/cogl/gl/Makefile.am:
* clutter/cogl/gl/cogl-primitives.c:
* clutter/cogl/gl/cogl-texture.c:
* clutter/cogl/gl/cogl.c: Ditto, in the GL implementation of the
COGL API.
* clutter/cogl/gles/Makefile.am:
* clutter/cogl/gles/cogl-fbo.c:
* clutter/cogl/gles/cogl-gles2-wrapper.c:
* clutter/cogl/gles/cogl-primitives.c:
* clutter/cogl/gles/cogl-texture.c:
* clutter/cogl/gles/cogl.c: Ditto, in the GLES implementation of
the COGL API.
* clutter/pango/pangoclutter-glyph-cache.c:
* clutter/pango/pangoclutter-glyph-cache.h: Ditto, in the Pango
renderer glyphs cache.
* clutter/clutter-fixed.c:
* clutter/clutter-fixed.h: ClutterFixed and related API becomes
a simple transition API for bindings and public Clutter API.
* clutter/clutter-actor.c:
* clutter/clutter-alpha.c:
* clutter/clutter-backend.c:
* clutter/clutter-behaviour-depth.c:
* clutter/clutter-behaviour-ellipse.c:
* clutter/clutter-behaviour-path.c:
* clutter/clutter-behaviour-rotate.c:
* clutter/clutter-behaviour-scale.c:
* clutter/clutter-clone-texture.c:
* clutter/clutter-color.c:
* clutter/clutter-entry.c:
* clutter/clutter-stage.c:
* clutter/clutter-texture.c:
* clutter/clutter-timeline.c:
* clutter/clutter-units.h: Move from the internal usage of
ClutterFixed to CoglFixed.
* doc/reference/clutter/clutter-sections.txt:
* doc/reference/cogl/cogl-docs.sgml:
* doc/reference/cogl/cogl-sections.txt: Update the documentation.
* tests/test-cogl-tex-tile.c:
* tests/test-project.c: Fix tests after the API change
* README: Add release notes.
* clutter/cogl/gles/cogl-fbo.c: Copy the code from gl/cogl-fbo but
use the API calls directly instead of loading an extension because
it is part of the core in GLES 2.
* clutter/cogl/gles/cogl.c (_cogl_features_init): Report
COGL_FEATURE_OFFSCREEN.
* clutter/cogl/gles/cogl-fbo.h (CoglFbo): Add gl_stencil_handle.
* clutter/cogl/gles/cogl-context.h (CoglContext): Add
viewport_store
* tests/test-fbo.c (make_shader): Conditionally use the GLES 2
names of the shader variables
* clutter/clutter-main.c (_clutter_do_pick): After picking is
finished, restore the state of glEnable (GL_DITHER). Otherwise it
will cause the scene to look different after the first pick on low
depth displays. (Thanks to Michael Boccara for the patch)
* clutter/cogl/gl/cogl-texture.c (cogl_texture_polygon)
(_cogl_texture_quad_sw, _cogl_texture_quad_hw):
* clutter/cogl/gles/cogl-texture.c (cogl_texture_polygon)
(_cogl_texture_quad_sw, _cogl_texture_quad_hw): Enable backface
culling in GL if it is requested.
* clutter/cogl/gles/cogl-texture.c (_cogl_texture_quad_sw)
(_cogl_texture_quad_hw):
* clutter/cogl/gl/cogl-texture.c (_cogl_texture_quad_sw)
(_cogl_texture_quad_hw): Reorder the
vertices so that they are counter-clockwise.
* clutter/cogl/gles/cogl-context.h (CoglContext):
* clutter/cogl/gl/cogl-context.h (CoglContext): Added a flag to
store whether backface culling is currently enabled.
* clutter/cogl/gles/cogl.c (cogl_enable_backface_culling):
* clutter/cogl/gl/cogl.c (cogl_enable_backface_culling): New
function
* doc/reference/cogl/cogl-sections.txt: Add
cogl_enable_backface_culling
* clutter/cogl/gl/cogl-texture.c (_cogl_texture_upload_subregion_to_gl)
(_cogl_texture_upload_to_gl):
* clutter/cogl/gles/cogl-texture.c (_cogl_texture_upload_to_gl)
(_cogl_texture_upload_subregion_to_gl):
When uploading data to a sliced texture, fill the waste pixels
with copies of the edge of the real texture data. Otherwise the
value of the waste pixels are undefined so it will show artifacts
when the texture is scaled with GL_LINEAR and the pixels are
blended in.
values (SIGSEGV)
* clutter/cogl/gl/cogl-texture.c
(_cogl_texture_upload_subregion_to_gl): When iterating over the
slices, discard ones that don't intersect immediatly otherwise it
will call glTexSubImage2D with a negative width/height and then
move the source position incorrectly. Thanks to Gwenole
Beauchesne.
* clutter/clutter-behaviour-bspline.c: Changed the CBZ_T_POW3 and
CBZ_T_MUL functions so that they preserve more of the least
significant bits. This fixes some of the jaggy behaviour with
longer paths.
reviewed by: Emmanuele Bassi <ebassi@linux.intel.com>
* clutter/clutter-color.[ch]: Add GParamSpec and GValue integration
for ClutterColor. With ClutterParamSpecColor it is possible to define
color properties; with the GValue integration it's possible to
automatically transform strings into colors and vice versa.
(clutter_color_free): Allow NULL parameter to match other boxed
types destructors.
(clutter_color_new): Add a constructor for the ClutterColor boxed
type, mostly for bindings.
* clutter/clutter-container.[ch]: Add checks to the Container
interface invocation methods, to avoid crashing or corrupting
the stack when an actor does not implement every virtual
function of the Container interface vtable. GObject allows this
to happen so we must handle the case gracefully. This also means
that we can classify some virtual function as mandatory (as is
the case for ::add, ::remove and ::foreach) and some other
optional.
Handle dropped motion events when computing crossing events,
based on a patch from Gwenole Beauchesne.
* clutter/clutter-main.c: (clutter_event_get_device): internal static
utility function.
(clutter_do_event): generate enter/leave events for all pointer
events.
(generate_enter_leave_events): modified enter/leave events generator
to work for all pointer event types. Enter/leave events are now
delivered before the motion/button event that caused the crossing to
happen.
* clutter/clutter-event.c: (clutter_event_copy), (clutter_event_free):
removed reference counting logic that is not needed when the crossing
events are directly delivered.
Bug 1130 - CLUTTER_MOTION is not emitted when time goes backwards.
* clutter/clutter-main.c (clutter_do_event): Check for time
rollbacks inside the motion event throttling. (Pierce Liu)
Bug 1154 - clutter_timeout_pool_new() documentation doesn't say
how to free
* clutter/clutter-timeout-pool.c: Update the documentation to
note that you must use g_source_unref() to free the timeout
pool. (Murray Cumming)
Bug 1124 - Clutter causes an additional size request in each
allocation
* clutter/clutter-actor.c:
(clutter_actor_store_old_geometry): Store the allocation instead
of causing a new size-request cycle. (Johan Bilien)
Bug 1125 - Save an extra pango_layout_get_size in many cases
* clutter/clutter-label.c:
(clutter_label_create_layout_no_cache): Add a simple check
before calling pango_layout_get_size(). (Johan Bilien)
* clutter/clutter-alpha.c:
(clutter_alpha_get_alpha): Do not return the cached value but
just compute the current alpha value. The use case is pretty
much straightforward: stop a timeline, advance it, and retrieve
the alpha value before starting the timeline to adjust an
animation dependent on the alpha. Caching the alpha value is
not needed because the behaviours will always pass the alpha
value inside the ::alpha-notify virtual function anyway, so
there is no need for them to call clutter_alpha_get_alpha().
This change makes it also possible to reliably unit-test
ClutterAlpha.
(timeline_new_frame_cb): Call clutter_alpha_get_alpha().
* 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/clutter-main.c: Don't free the ClutterMainContext so
that the main loop can be restarted.
* clutter/eglx/clutter-backend-egl.c:
* clutter/eglnative/clutter-backend-egl.c: Register an atexit
handler which disposes the backend object so that we are still
guaranteed to call eglTerminate on GLES.
Bug 1033 - Manually parsing command line options prevents
initializing clutter
* clutter/clutter-main.c:
(post_parse_hook), (clutter_init_with_args),
(clutter_parse_args), (clutter_init): Move the initialization
of Clutter at the end of the post-parse hook of Clutter's
GOptionGroup. Clutter must be initialized at the end of the
argument parsing.
* clutter/clutter-main.c: Properly document the
clutter_get_option_group() function and the invariant that
after parsing Clutter's option group the library will be
initialized. (Thanks to Tomas Frydrych for pointing this
out)
* 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/cogl/gl/cogl-texture.c (cogl_texture_set_region):
* clutter/cogl/gles/cogl-texture.c (cogl_texture_set_region):
Don't attempt to upload any data if the width or height of the
subregion is zero. Thanks to Gwenole Beauchesne.
* clutter/cogl/gles/cogl.c (cogl_get_viewport): Use glGetIntegerv
instead of glGetFixedv to read the viewport because the latter
converts incorrectly on some hardware.
* clutter/clutter-stage.c (clutter_stage_read_pixels): Use
OpenGL's coordinate system for the arguments to glReadPixels (so
that y zero is the bottom of the window). Use clutter_redraw
instead of clutter_stage_paint to ensure the right GL context is
selected. Set some of the glPixelStore parameters that might have
been changed by Cogl.
* tests/test-stage-read-pixels.c: Replace with a different test
that gets a sub-region of the stage around the cursor.
* 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.
* clutter/clutter-actor.c
(clutter_actor_set_anchor_point_from_gravity)
(clutter_actor_move_anchor_point_from_gravity): Add documentation
to make it clear that the anchor point won't move when the actor
is resized.
window_style correction.
* clutter/win32/clutter-stage-win32.c (get_window_style): Remove
the WS_MAXIMIZEBOX style if the stage isn't resizable.
(clutter_stage_win32_set_user_resize): Queue a redraw of the
window frame when the user_resize property is changed.
* clutter/win32/clutter-event-win32.c (message_translate): Don't
update the size of the stage when handling WM_SIZE messages that
result from the stage being minimized. Thanks to Roman Yazmin.
* 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/clutter-main.c (_clutter_id_to_color): When choosing a
pick color, set all but the most significant of the unused
bits. This should make make it more likely that the GL
implementation will round down to the right value.
* tests/test-pick.c: Test case for picking. It creates 192 actors
at known positions and stores their gids. It then calls
clutter_stage_get_actor_at_pos with each position to check that
the right gid is returned.
* tests/Makefile.am (noinst_PROGRAMS): Add test-pick
* clutter/clutter-label.c: Bring back layout caching. This time it
will cache up to three different layouts. The width for which each
layout was generated is stored so that if the same width is
requested again it can use the cached version. If no cached
version is available it will try to replace the oldest
layout. 'Age' is determined by a counter which is incremented
every time a layout is created. The cache is cleared after any
property changes that might affect the layout.
(struct _ClutterLabelPrivate): Removed extents_width,
extents_height and context because they weren't used anywhere.
* tests/test-label-cache.c: Add a test which checks whether the
label is using a different layout when properties are
changed. Also compares the extents of the label's layout with an
independent layout and fails if they aren't the same.
* tests/Makefile.am (noinst_PROGRAMS): Add test-label-cache
* clutter/clutter-actor.c (clutter_actor_set_property): When
changing the anchor point properties, use set_anchor_pointu
instead of changing the value directly so that a redraw will be
queued.
(clutter_actor_set_anchor_pointu): Queue a redraw when the anchor
point is changed. Thanks to Johan Bilien.
Bug 1082 - Texture bitmap is destroyed in wrong way
* clutter/cogl/common/cogl-bitmap-pixbuf.c:
(_cogl_bitmap_from_file): Make a copy of the pixbuf data in
the internal image loader so that we can keep working under
the assumption that we are using the GLib memory allocation
and deallocation functions.
Bug 1099 - No ClutterScript API to get a list of IDs in a given file
* clutter/clutter-script.[ch]: Add clutter_script_list_objects(),
a function for retrieving all the objects built by a ClutterScript
instance. (Based on a patch by Noah Gibbs)
Bug 1090 - Label somtimes returns natural_width < min_width
* clutter/clutter-label.c:
(clutter_label_get_preferred_width): Check that the width of the
layout is always greater than 0. (Johan Bilien)
* doc/reference/clutter/subclassing-ClutterActor.xml: Update the
custom actor example since the Cogl API was changed to namespace
all of the path related functions in cogl_path_*. Thanks to Nati
Berkover.
* clutter/clutter-score.c: Add missing parameter in example of
calling clutter_score_start().
x-align property
* clutter/clutter-entry.c (clutter_entry_paint): When calculating
the position to draw the cursor at, take into account the
alignment of the text. Queue a redraw when the x-align property is
changed.
* clutter/win32/clutter-event-win32.c (message_translate): The
coordinates in a WM_MOUSEWEEL message are given relative to the
screen so they need to be converted to client coordinates before
use. Thanks to Roman Yazmin.
* clutter/clutter-child-meta.c:
(clutter_child_meta_set_property),
(clutter_child_meta_class_init): Make the :container and
:actor properties of ChildMeta construct-only, to allow
bindings to actually use ChildMeta without abusing the API.
* clutter/clutter-container.c (create_child_meta): Instead of
setting the members of the ChildMeta structure, use the
constructor properties.
* clutter/clutter-script-parser.c:
* clutter/clutter-script-private.h: Clean up the code; add a
conversion function for reading a ClutterColor out of a
JSON object or array definition.
* clutter/clutter-script.c: Clean up the code; document properly
how we translate from type name to type function.
* clutter/cogl/gl/cogl.c:
* clutter/cogl/gles/cogl.c:
* clutter/cogl/cogl.h.in: Add cogl_clip_stack_save,
cogl_clip_stack_restore, cogl_viewport and cogl_frustum.
* clutter/cogl/gl/cogl-fbo.h:
* clutter/cogl/gl/cogl-fbo.c: Try to attach a stencil buffer when
creating an FBO.
* clutter/cogl/common/cogl-clip-stack.c: Add functions to save and
restore the whole state of the stack.
* clutter/clutter-texture.c (clutter_texture_paint): When
rendering the FBO source, setup a temporary asymmetric perspective
projection matrix to render it as it would appear on screen.
* clutter/clutter-private.h:
* clutter/clutter-actor.c
(_clutter_actor_apply_modelview_transform_recursive): No longer
static and exported in clutter-private.h
* clutter/clutter-timeline.c: Calculate the 'duration' property
on-demand instead of storing it as a member variable. Notify
duration property changes whenever the fps or num_frames changes.
* clutter/clutter-score.c (clutter_score_is_playing): Check
whether priv->running_timelines is NULL before checking its
length.
(foreach_running_timeline): Remove the completed signal handler
when stopping the score. Otherwise the completed callback will get
called multiple times if the timeline is started later.
* clutter/clutter-stage.c (clutter_stage_dispose): Unrealize the
stage before removing the update idle handler. Otherwise
unrealizing causes another redraw to be queued and if the stage
object remains alive it will cause an assert and abort.
* clutter/clutter-fixed.h:
* clutter/clutter-units.h: Fix the upper and lower boundaries of
ClutterFixed and ClutterUnit types; G_MAXINT16 and G_MININT16
were not enough to describe those values.
* clutter/clutter-main.c:
Destroy the debugging timer when the context is freed.
* clutter/clutter-stage.c:
Free the stage title when the stage is finalized.
function is supposed to accept -1 to disable sorting. However it
checks for whether the column is >= the number of columns, but
clutter_model_get_n_columns() returns an unsigned int so the
column number also gets promoted to unsigned for the
comparison. Therefore -1 is always greater than the number of
columns so it wouldn't let you set it.
* clutter/clutter-rectangle.c:
* clutter/clutter-group.c:
* clutter/clutter-entry.c:
* clutter/clutter-clone-texture.c: Remove unnecessary calls to
cogl_{push,pop}_matrix. The matrix is preserved in
clutter_actor_paint whenever the actor's transformation is applied
so there should be no need to push the matrix in actor paint
implementations unless it does some additional transformations
itself.
* clutter/clutter-stage.c:
(clutter_stage_hide_cursor):
Fixed C&P bug that made it impossible to show cursor once hidden.
Stripped trailing whitespace.
Bug 1011 - Fix TFP fallback mechanism (take 2)
* clutter/glx/clutter-glx-texture-pixmap.c:
* tests/test-pixmap.c:
Slightly modified patch from Gwenole Beauchesne applied
to better handle both falling back to non accelerated tfp
and improvements to the test case.
Bug 1033 - Manually parsing command line options prevents
initializing clutter (Armin Burgmeier)
* clutter/clutter-main.c:
(post_parse_hook), (clutter_init_real): Set the is_initialized
flag inside the real initialization function.
new layout code
* clutter/clutter-texture.c (clutter_texture_new_from_actor): Now
parents the source actor if it doesn't already have a parent so
that it will get an allocation during layout.
* tests/test-fbo.c: One of the tests tries to ensure that the
ClutterTexture clone keeps the source actor alive by derefing
it. However as actors have a floating reference then test-fbo
doesn't have its own reference once the source is parented so
unrefing just steals the parent's reference and causes
badness. The test now claims the floating reference before cloning
the source so that it can safely be unref'd later.
(clutter_actor_get_abs_allocation_vertices): The initialization of
the local stage pointer got moved away in revision 3081 so it was
crashing if the function is called before the layout is run.
* clutter/clutter-label.c:
(clutter_label_create_layout_no_cache),
(clutter_label_create_layout): Split the layout creation in two
functions: one creating the layout, the other creating the layout
and hitting the glyphs cache. The first one is for the offscren
operations - like requesting the preferred size; the second one
is for paint and allocation.
(clutter_label_allocate): Try to aggressively cache the PangoLayout
between allocations - to avoid recreating it even when the label
just moved because of an animation. See bug #1010.
robust. There are situations though where the device seems to stop
generating any touch events until all fingers have been lifted and
a new interaction session is started.
Bug 1010 - ClutterLabel does not update the layout (Lee Jusung)
* clutter/clutter-actor.c:
(clutter_actor_queue_relayout): Remove some pointer dereferencing.
* clutter/clutter-label.c:
(clutter_label_allocate): Revert the change of r2883 and remove the
layout width cache and force a recreation of the layout every time
we receive an allocation.
This is now do-what-I-mean like clutter_actor_get_size so that if
the allocation box is available it will use that, otherwise it
will use the preferred size. clutter_actor_transform_vertices has
been converted to clutter_actor_transform_and_project_box so that
it can be used by both functions. Based on a patch by Emmanuele
Bassi.
(clutter_actor_get_abs_allocation_vertices)
(clutter_actor_get_allocation_vertices): These two functions now
force a relayout if the allocation box is not available.
* tests/test-fbo.c: Fixed the shader to use texture2D instead of
texture2DRect now that GL_EXT_texture_rectangle is no longer used.
Add a note to the clutter_stage_read_pixels doc that the alpha channel
isn't guaranteed to contain sensible data
* tests/test-stage-read-pixels.c: (update_snapshot):
Overwrite the alpha data when using clutter_stage_read_pixels; fixes
this test on non-nvidia drivers
* 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.
* clutter/clutter-event.c: (clutter_event_get_device_id): swap
arguments of g_return_val_if_fail around.
* clutter/clutter-event.h: added *device field to crossing events as
well.
* clutter/clutter-main.c: (emit_pointer_event): added a device
argument and check for per device grabs if this device is passed.
(clutter_do_event): pass the device if present for all pointer event
emissions.
(generate_enter_leave_events): copy the device from the motion events
when generating enter/leave events.
Correct documentation about accepted pixel formats
* tests/test-stage-read-pixels.c: (main):
Don't try to free a ClutterTexture after main, fixes segfault on quit
* clutter/clutter-behaviour-bspline.h:
* clutter/clutter-behaviour.h:
* clutter/clutter-event.h:
* clutter/clutter-texture.h: Add missing documentation and
change the copyright and licensing notice to use the FSF
website instead of its address. (#512)
* clutter/cogl/gl/cogl.c (set_clip_plane):
* clutter/clutter-alpha.c (sinc_func): Use G_PI instead of M_PI
because M_PI isn't defined in MSVC without a special
#define. Thanks to Haakon Sporsheim
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)
Bug 980 - cogl-bitmap-fallback.c compiler error/warning due to
cast issue (Haakon Sporsheim)
* clutter/cogl/common/cogl-bitmap-fallback.c:
(_cogl_unpremult_alpha_last),
(_cogl_unpremult_alpha_first): Cast to avoid a compiler warning
with MSC.
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/osx/clutter-osx.h (_clutter_event_osx_put)
* clutter/osx/clutter-event-osx.c (clutter_event_osx_translate,
NSEvent:clutterStage:)
* clutter/osx/clutter-stage-osx.c (EVENT_HANDLER): Since events are
delivered to ClutterGLView, pass the associated ClutterStage directly
to event translation. Avoids relying on being embedded in
ClutterGLWindow, which makes it easier to implement clutter-gtk.
* clutter/osx/clutter-event.osx.c (NSEvent:clutterKeyVal:): Add
comment, on OSX backend the Shift modifier is included in 'keyval'
making it identical to 'unicode_value' Instead of <Shift>a or
<Shift>3 you'd get <Shift>A and <Shift>#
* 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.
* clutter/pango/pangoclutter-render.c: Fixed so that instead
of trying to set the color in prepare_run it uses draw_glyphs
to draw groups of glyphs and requests the color for each part
from Pango.
* clutter/clutter-actor.c:
(clutter_actor_set_min_width),
(clutter_actor_set_min_height),
(clutter_actor_set_natural_width),
(clutter_actor_set_natural_height): Ignore any override of the
minimum and natural size of the stage on backends that only
support static stages.
* clutter/clutter-stage.c (clutter_stage_allocate): Use the
preferred size of the ClutterStage implementation instead of
the display size.
* clutter/clutter-backend.[ch]: Remove get_display_size() and
clutter_backend_get_display_size().
* clutter/eglnative/clutter-backend-egl.c:
* clutter/fruity/clutter-backend-fruity.c:
* clutter/osx/clutter-backend-osx.c:
* clutter/sdl/clutter-backend-sdl.c:
* clutter/win32/clutter-backend-win32.c:
* clutter/x11/clutter-backend-x11.c: Remove get_display_size()
implementations.
* clutter/glx/clutter-glx-texture-pixmap.c:
Move the gl extension probe into the regular object init() rather than
class_init. Should be a little safer.
* clutter/clutter-main.h: Make the priority constants public.
* clutter/clutter-stage.c: Use CLUTTER_PRIORITY_REDRAW.
* clutter/clutter-timeline.c: Use CLUTTER_PRIORITY_TIMELINE.
* clutter/clutter-actor.c:
(clutter_actor_set_min_width),
(clutter_actor_set_min_height),
(clutter_actor_set_natural_width),
(clutter_actor_set_natural_height): Add a comment explaining
the override in place for backends providing a fixed size
on a stage.
* clutter/clutter-actor.c:
(clutter_actor_set_min_width),
(clutter_actor_set_min_height),
(clutter_actor_set_natural_width),
(clutter_actor_set_natural_height): If setting the minimum
and natural width and height on a top-level actor, and on
a backend that provides only static stages, then override
the value and use the size of the display as returned by
the backend.
* clutter/eglnative/clutter-stage-egl.c:
(clutter_stage_egl_realize): Remove the setting of the
minimum and natural width and height.
* clutter/clutter-stage.c:
(clutter_stage_allocate): Minor optimization.
(clutter_stage_init): Do not set the minimum size of the
stage wrapper, and require that the backends set the size
themselves.
