Commit Graph

4100 Commits

Author SHA1 Message Date
Emmanuele Bassi
e86db85cd2 color: Support the CSS hsl() notation
Since we support the rgb() and rgba() notations we might as well also
support the hsl() one.
2010-11-22 15:02:47 +00:00
Emmanuele Bassi
ab6da347f6 color: Support CSS color definitions
The CSS Color Module 3, available at:

  http://www.w3.org/TR/css3-color/

allows defining colors as:

  rgb ( r, g, b )
  rgba ( r, g, b, a)

along with the usual hexadecimal and named notations.

The r, g, and b channels can be:

  • integers between 0 and 255
  • percentages, between 0% and 100%

The alpha channel, if included using the rgba() modifier, can be a
floating point value between 0.0 and 1.0.

The ClutterColor parser should support this notation.
2010-11-22 14:38:44 +00:00
Emmanuele Bassi
b674fcf3bb build: Add missing cogl-shader-boilerplate.h 2010-11-20 10:47:22 +00:00
Emmanuele Bassi
be3040fd2b build: Add a missing file 2010-11-19 18:30:06 +00:00
Emmanuele Bassi
e30b7b2d5a build: Don't reference non-existing files 2010-11-19 18:15:49 +00:00
Emmanuele Bassi
d39277d0cf actor: Reset the last paint box on unmap
This allows hiding + moving + showing an actor without repainting the
wrong area.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2395
2010-11-19 14:49:00 +00:00
Owen W. Taylor
346d3e40a3 Free state at the end of a journal flush
At the end of flushing the journal, we need to free the vertex
attributes and vertex array.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2423
2010-11-19 13:27:30 +00:00
Owen W. Taylor
1299672b5a Actually free buffer objects
With the refactoring to centralize code into CoglBuffer,
_cogl_buffer_fini() was never actually implemented, so all GL
vertex and index buffer objects were leaked.

The duplicate call to glDeleteBuffers() in CoglPixelArray is
removed (it wasn't paying attention to whether the buffer had been
allocated as a PBO or not.)

http://bugzilla.clutter-project.org/show_bug.cgi?id=2423
2010-11-19 13:27:30 +00:00
Robert Bragg
a5c30398df egl: Adds support for clipped redraws
This adds egl backend support for handling clipped redraws. This uses
the EGL_NOK_swap_region extension to enable the EGL backend to present a
subregion from the back buffer to the front so we don't always have to
redraw the entire stage for small updates.
2010-11-19 13:27:30 +00:00
Robert Bragg
a4d3208eb5 debug: Adds a COGL_DEBUG=wireframe option
This adds a COGL_DEBUG=wireframe option to visualize the underlying
geometry of the primitives being drawn via Cogl. This works for triangle
list, triangle fan, triangle strip and quad (internal only) primitives.
It also works for indexed vertex arrays.
2010-11-19 13:27:30 +00:00
Robert Bragg
78ac92f8e5 vertex-buffer: don't unref NULL object
In cogl_vertex_buffer_indices_get_for_quads() we sometimes have to
extend the length of an existing array, but when we came to unref the
previous array we didn't first check that it wasn't simply NULL.
2010-11-19 13:27:30 +00:00
Robert Bragg
f473c213fc vertex-array: Adds data arg for _vertex_array_new()
This adds an optional data argument for cogl_vertex_array_new() since it
seems that mostly every case where we use this API we follow up with a
cogl_buffer_set_data() matching the size of the new array. This
simplifies all those cases and whenever we want to delay uploading of
data then NULL can simply be passed.
2010-11-19 13:27:30 +00:00
Robert Bragg
804dd5d5fc indices: Makes cogl_indices_get_array public
This makes the previously internal only _cogl_indices_get_array API
public as cogl_indices_get_array (Though marked as experimental)
2010-11-19 13:27:30 +00:00
Robert Bragg
dfc671da59 build: cogl-clip-state.h depends on cogl-clip-stack.h
This adds a #include "cogl-clip-stack.h" to cogl-clip-state.h which
depends on the CoglClipStack typedef.
2010-11-19 13:27:30 +00:00
Robert Bragg
6f68bb3656 debug: disable-culling was disabling clipped redraws
there was a typo and the disable-culling option was actually disabling
clipped redraws.
2010-11-19 12:55:55 +00:00
Emmanuele Bassi
694632ce95 build: Re-arrange headers
Try to minimize the included headers, especially in clutter-actor.h.
2010-11-18 18:23:49 +00:00
Emmanuele Bassi
63cef64d17 docs: Fix some wrong function/signal/property names 2010-11-18 15:21:16 +00:00
Emmanuele Bassi
a35708eb74 Deprecate ClutterBehaviour and sub-classes
The Behaviour class and its implementations have been replaced by the
new animation framework API and by the constraints for layout-related
animations.

Currently, we need to make tests build, so we undef DISABLE_DEPRECATED
in specific test cases while they get ported.
2010-11-18 15:21:16 +00:00
Emmanuele Bassi
71a838815f timeline: Add :reverse property
The :reverse property removes the pattern of connecting to the
::completed signal of a Timeline to change the direction.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2408
2010-11-18 15:18:19 +00:00
Emmanuele Bassi
1ce47bb562 docs: Remove unnecessary '#'
The hash is confusing gtk-doc.
2010-11-18 15:04:33 +00:00
Emmanuele Bassi
a94ea93bde paint-volume: Do not take a reference on the actor
The paint volume structure is cached in the Actor it references, and
this causes a reference cycle.

The paint volume is going to be used when painting, so the actor must
still be valid - otherwise Clutter will bail out far before than
accessing the actor pointer in ClutterPaintVolume.

Otherwise, we could have used dispose() to check for a valid actor and
remove a reference if the actor field is !NULL; it feels less clean,
though, since we're effectively managing an extra reference on
ourselves.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2431
2010-11-18 11:11:03 +00:00
Emmanuele Bassi
0371ba3976 actor: Group bitfields together 2010-11-18 11:10:59 +00:00
Emmanuele Bassi
8f60d5a3a2 Start using the monotonic API in GLib ≥ 2.27
Starting from the 2.27 cycle, GLib is exposing a monotonic clock with
microseconds granularity throughout the time-based API. We can start
using it, given that the old, non-monotonic version is going to be
deprecated by the same cycle.
2010-11-17 16:19:10 +00:00
Emmanuele Bassi
68d7a5e847 Move away from GTimeVal
GLib 2.28 will deprecate GTimeVal and related API in favour of
standardizing on microseconds granularity for all time-based API.

Clutter should switch too.

All of the current users of GTimeVal convert to milliseconds when
doing time operations, and use GTimeVal only as storage. This can
effectively be replaced by a gint64.

The Master Clock uses a microsecond resolution, except when interacting
with the main loop itself, since the main loop has a millisecond
resolution - at least until Ryan Lortie manages to switch that too to
microseconds on Linux.

The clutter_timeline_do_tick() function was erroneously not privatized,
but it was still assumed to be private; we should just remove it from
the public symbols.
2010-11-17 16:19:10 +00:00
Emmanuele Bassi
8b047d0bc9 docs: Move the constraints example picture about the source code 2010-11-17 12:49:10 +00:00
Emmanuele Bassi
e5da5b0907 shaders: Fix the usage of the Cogl GLSL variables 2010-11-17 12:47:46 +00:00
Emmanuele Bassi
f96113705d docs: Fix closing tag 2010-11-17 12:14:02 +00:00
Emmanuele Bassi
a731682ac3 actor: Simple show/hide optimizations
Showing a visible (and hiding an invisible) actor is far less cheap than
it should be.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2422
2010-11-17 08:32:55 +00:00
Emmanuele Bassi
a32f781144 docs: Break down the constraints example 2010-11-17 08:32:54 +00:00
Emmanuele Bassi
2950cb3e78 docs: Fix Since tags for PaintVolume-related API 2010-11-15 16:02:15 +00:00
Emmanuele Bassi
b7fa13a52f docs: Add introductory section on Constraints
Use the snap-constraint code for the example code and screenshot.
2010-11-15 16:00:49 +00:00
Emmanuele Bassi
3c15c0c9bb Add SnapConstraint
A SnapConstraint is a constraint that "snaps" the edges of two actors
together.
2010-11-15 16:00:49 +00:00
Emmanuele Bassi
b3f5a6e2ba actor: Do not queue relayouts on actors being destroyed
Simple optimization is simple.
2010-11-15 16:00:48 +00:00
Emmanuele Bassi
0523d6db08 actor: Add a get_debug_name() private Actor method
For internal usage, writing:

  clutter_actor_get_name (actor) != NULL
    ? clutter_actor_get_name (actor)
    : G_OBJECT_TYPE_NAME (actor)

is overly verbose and does two type checks. A simple, internal method
for getting the same result without type checks would be much more
appreciated.
2010-11-15 16:00:48 +00:00
Emmanuele Bassi
5f9df7e3a0 Fix compilation warning by using the correct type 2010-11-15 15:36:41 +00:00
Emmanuele Bassi
e80035331b Use the right string in the font settings debug blurb 2010-11-14 23:06:53 +00:00
Emmanuele Bassi
e6bc65b5c3 text: Do not segfault with NULL :font-name
Make sure that we have a fall back in place for the default font name
string, and use g_strcmp0 to protect ourselves from NULL strings.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2417
2010-11-14 23:06:48 +00:00
Owen W. Taylor
9249bd8411 xsettings: don't use the xsettings watch function functionality
The "watch" function functionality in xsettings-client.c is designed
for setups like GDK where filters are per-window. If we are going
to pass all events to _clutter_xsettings_client_process_event()
anyways, we can just pass in NULL for watch.

This avoids a nasty infinite loop where an event would get processed
triggering removing a filter and adding a new filter, which would
immediately run and remove a filter and add another and so on
ad-infinitum.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2415
2010-11-14 14:50:25 +00:00
Lucas Rocha
03a713e18e click-action: don't use pointer grabs
The same behavior can be achieved by capturing events on stage while
button is pressed. This fixes a problem when using click and drag
actions on the same actor as there no grabs involved.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2409
2010-11-11 23:18:20 +00:00
Emmanuele Bassi
dfdd591414 Merge branch 'wip/static-colors'
* wip/static-colors:
  Move tests to static colors where possible
  color: Add named, global colors
2010-11-11 17:53:42 +00:00
Neil Roberts
1bcf15e1b8 cogl-texture: Remove the gl_handle from CoglTextureSliceCallback
There's no longer any need to use the GL handle in the callback for
_cogl_texture_foreach_sub_texture_in_region because it can now work in
terms of primitive cogl textures so it has now been removed. This
would be helpful if we ever want to make the foreach function public
so that apps could implement their own primitives using sliced
textures.
2010-11-11 16:25:13 +00:00
Neil Roberts
49898d43dd cogl-pipeline: Use layer overrides as CoglHandles instead of GLuint
Since d5634e37 the sliced texture backend now works in terms of
CoglTexture2Ds so there's no need to have special casing for
overriding the texture of a pipeline layer with a GL handle. Instead
we can just use cogl_pipeline_set_layer_texture with the
CoglHandle. The special _cogl_pipeline_set_layer_gl_texture_slice
function has now been removed and parts of the code for comparing
materials have been simplified.
2010-11-11 16:25:13 +00:00
Neil Roberts
1447ceb0de CoglTexture2DSliced: Pass slice tex to callback in foreach_sub_texture
The cogl_texture_foreach_sub_texture_in_region virtual for the sliced
texture backend was previously passing the CoglHandle of the sliced
texture to the callback. Since d5634e37 the slice texture backend now
works in terms of 2D textures so it's possible to pass the underlying
slice texture as a handle too. This makes all of the foreach callbacks
consistent in that they pass a CoglHandle of the primitive texture
type that matches the GL handle.
2010-11-11 16:25:13 +00:00
Robert Bragg
fb9d3a8350 path 2.0: update path API for experimental 2.0 API
When COGL_ENABLE_EXPERIMENTAL_2_0_API is defined cogl.h will now include
cogl2-path.h which changes cogl_path_new() so it can directly return a
CoglPath pointer; it no longer exposes a prototype for
cogl_{get,set}_path and all the remaining cogl_path_ functions now take
an explicit path as their first argument.

The idea is that we want to encourage developers to retain path objects
for as long as possible so they can take advantage of us uploading the
path geometry to the GPU. Currently although it is possible to start a
new path and query the current path, it is not convenient.

The other thing is that we want to get Cogl to the point where nothing
depends on a global, current context variable. This will allow us to one
day define a sensible threading model if/when that is ever desired.
2010-11-11 13:17:26 +00:00
Robert Bragg
b993195dc8 cogl: Adds COGL_ENABLE_EXPERIMENTAL_2_0_API define
For now this new define is simply an alias for
COGL_ENABLE_EXPERIMENTAL_API but the intention is that we will also use
it to start experimenting with changes that need to break the existing
Cogl API in incompatible ways.
2010-11-11 13:17:26 +00:00
Emmanuele Bassi
985518c601 color: Add named, global colors
Since EGA colors are apparently all the rage in other toolkits, Clutter
should not be left out. On top of the usual CGA/EGA palette the static
colors also include the Tango Icon palette, which at least is more
pleasant to the eye.

Static colors are accessed through an enumeration by using
clutter_color_get_static(), or using the short-hand pre-processor
macros.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2066
2010-11-11 13:14:23 +00:00
Robert Bragg
5f30835eae cogl-shader: Prepend boilerplate for portable shaders
We now prepend a set of defines to any given GLSL shader so that we can
define builtin uniforms/attributes within the "cogl" namespace that we
can use to provide compatibility across a range of the earlier versions
of GLSL.

This updates test-cogl-shader-glsl.c and test-shader.c so they no longer
needs to special case GLES vs GL when splicing together its shaders as
well as the blur, colorize and desaturate effects.

To get a feel for the new, portable uniform/attribute names here are the
defines for OpenGL vertex shaders:

 #define cogl_position_in gl_Vertex
 #define cogl_color_in gl_Color
 #define cogl_tex_coord_in  gl_MultiTexCoord0
 #define cogl_tex_coord0_in gl_MultiTexCoord0
 #define cogl_tex_coord1_in gl_MultiTexCoord1
 #define cogl_tex_coord2_in gl_MultiTexCoord2
 #define cogl_tex_coord3_in gl_MultiTexCoord3
 #define cogl_tex_coord4_in gl_MultiTexCoord4
 #define cogl_tex_coord5_in gl_MultiTexCoord5
 #define cogl_tex_coord6_in gl_MultiTexCoord6
 #define cogl_tex_coord7_in gl_MultiTexCoord7
 #define cogl_normal_in gl_Normal

 #define cogl_position_out gl_Position
 #define cogl_point_size_out gl_PointSize
 #define cogl_color_out gl_FrontColor
 #define cogl_tex_coord_out gl_TexCoord

 #define cogl_modelview_matrix gl_ModelViewMatrix
 #define cogl_modelview_projection_matrix gl_ModelViewProjectionMatrix
 #define cogl_projection_matrix gl_ProjectionMatrix
 #define cogl_texture_matrix gl_TextureMatrix

And for fragment shaders we have:

 #define cogl_color_in gl_Color
 #define cogl_tex_coord_in gl_TexCoord

 #define cogl_color_out gl_FragColor
 #define cogl_depth_out gl_FragDepth

 #define cogl_front_facing gl_FrontFacing
2010-11-10 14:24:52 +00:00
Tomeu Vizoso
373140c830 Discard the current pick buffer...
if we are asked to pick with a different mode.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2385
2010-11-08 16:45:15 +00:00
Emmanuele Bassi
4909ecc71e gtk-doc: Fixes for the API references 2010-11-08 16:01:19 +00:00
Emmanuele Bassi
993d3b3fe1 timeout-pool: Deprecate the structure too
Don't leave it lying around, since nothing can use it anyway.
2010-11-08 15:52:17 +00:00
Emmanuele Bassi
26a70707ab path-constraint: Add a ::node-reached signal
Emit a signal whenever a node in the path has been reached.
2010-11-07 21:35:40 +00:00
Emmanuele Bassi
ef7f729c68 build: Re-instate profile builds
The profiling support was broken - probably during the restructuring of
the build environment, but I'm too lazy to bisect that.

The fix is trivial, and everything works as it should.
2010-11-07 15:27:17 +00:00
Emmanuele Bassi
38912ee4d9 Deprecate ClutterFrameSource
The FrameSource API hasn't been used internally since 1.0; since it's
not part of the paint clock, it is of limited use.
2010-11-06 20:11:16 +00:00
Emmanuele Bassi
9ac2f5cba5 Deprecate ClutterTimeoutPool
Timelines have stopped using the pool since 1.0; there is no real reason
to expose it as part of the active API.
2010-11-06 20:11:16 +00:00
Emmanuele Bassi
a432d9973d Remove a compiler warning 2010-11-06 18:12:41 +00:00
Maxim Ermilov
6ec9c3247c CoglContext: correct initialization order
http://bugzilla.clutter-project.org/show_bug.cgi?id=2401
2010-11-06 18:06:19 +00:00
Neil Roberts
cc63c7dd8f cogl-texture-2d-sliced: Fix the foreach callback for waste textures
When converting the virtual coordinates of the underlying texture for
a slice to virtual coordinates for the whole texture it was using the
size and offset of the intersection as the size of the child
texture. This would be incorrect if the texture contains waste or the
texture coordinates are not the default. Instead the sliced foreach
function now passes the CoglSpan to the callback instead of the
intersection.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2398
2010-11-05 18:45:31 +00:00
Neil Roberts
8112bfc49f Replace the disable-npots tool with a COGL_DEBUG option
Previously in the tests/tools directory we build a disable-npots
library which was used as an LD_PRELOAD to trick Cogl in to thinking
there is no NPOT texture extension. This is a little awkward to use so
it seems much simpler to just define a COGL_DEBUG option to disable
npot textures.
2010-11-05 18:45:31 +00:00
Robert Bragg
632412c9c8 actor: Check "paint" handlers in _get_paint_volume
Instead of waiting until clutter_actor_paint to check if there are any
handlers connected to the "paint" signal, we now do the check whenever
the paint-volume is requested in _actor_get_paint_volume_mutable().

Previously we checked in clutter_actor_paint(), but at that time we may
already be using a stage clip that could be derived from an invalid
paint-volume. We used to try and handle that by queuing a follow up,
unclipped, redraw but anyway there was an additional problem with the
previous approach because the checking wasn't enough to always catch
invalid volumes involved in culling (considering that containers may
derive their volume from children that haven't yet been painted)

By moving the check to _get_paint_volume time not only do we now
correctly check children in cases where a container derives its volume
from its children's volumes but we no longer need to queue follow up
redraws to cover up artefacts.

Since we now never queue follow up redraws, this in turn means we should
no longer clobber redraws queued with an explicit clip which was
something affecting gnome-shell since it connects a handler to the paint
signal of the stage.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2388
2010-11-05 17:22:05 +00:00
Robert Bragg
844b578128 matrix-stack: use GArray instead of GSList for stack
In some micro-benchmarks testing journal throughput the list
manipulation jumps pretty high in the profile. This replaces the GSList
usage with a GArray instead which is effectively a grow only allocation
that means we avoid ongoing allocations while manipulating the stack
mid-scene.
2010-11-04 18:35:16 +00:00
Robert Bragg
a6000533dc pipeline: Avoid costly checking of lighting properties
During _cogl_pipeline_needs_blending_enabled we were always checking the
current lighting properties (ambient,diffuse,specular,emission) which
had a notable impact during micro-benchmarks that exercise journal
throughput of simple colored rectangles. This #if 0's the offending code
considering that Cogl doesn't actually support lighting currently and
when it actually does then we will be able to optimize this by avoiding
the checks when lighting is disabled.
2010-11-04 18:22:41 +00:00
Robert Bragg
eaee5dd604 cogl: add separate material for blended source_colors
When using cogl_set_source_color4ub there is a notable difference
between colors that require blending and those that dont. When trying to
modify the color of pipeline referenced by the journal we don't force a
flush of the journal unless the color change will also change the
blending state. By using two separate pipeline objects for handing
opaque or transparent colors we can avoid ever flushing the journal when
repeatedly using cogl_set_source_color and jumping between opaque and
transparent colors.
2010-11-04 18:22:40 +00:00
Robert Bragg
d05ce7cd26 texture_quad_multiple_primitives: rework wrap mode overrides
This reworks _cogl_texture_quad_multiple_primitives so instead of using
the CoglPipelineWrapModeOverrides mechanism to force the clamp to edge
repeat mode we now derive an override pipeline using cogl_pipeline_copy
instead. This avoids a relatively large, unconditional, memset.
2010-11-04 18:22:40 +00:00
Robert Bragg
7bbe207b65 _multitexture_quad_single_primitive: avoid wrap overrides
This avoids using the wrap mode overrides mechanism to implement
_cogl_multitexture_quad_single_primitive which requires memsetting a
fairly large array. This updates it to use cogl_pipeline_foreach_layer()
and we now derive an override_material to handle changes to the wrap
modes instead of using the CoglPipelineWrapModeOverrides.
2010-11-04 18:22:39 +00:00
Neil Roberts
e73b67e59b cogl-path: Don't bother filling the path if less than 3 nodes
Previously there was a check to avoid filling the path if there are
zero nodes. However the tesselator also won't generate any triangles
if there are less than 3 nodes so we might as well bail out in that
case too. If we don't emit any triangles then we would end up trying
to create an empty VBO. Although I don't think this should necessarily
be a problem, this seems to cause Mesa to segfault in version 7.8.1
when calling glBufferSubData (although not in
master). test-cogl-primitives tries to fill a path with only two
points so it's convenient to be able to avoid the crash in this case.
2010-11-04 18:10:09 +00:00
Neil Roberts
25b48585d3 cogl-journal: Log the clip state in the journal
When adding a new entry to the journal a reference is now taken on the
current clip stack. Modifying the current clip state no longer causes
a journal flush. The journal flushing code now has an extra stage to
compare the clip state of each entry. The comparison can simply be
done by comparing the pointers. Although different clip states will
still end up with multiple draw calls this at leasts allows a scene
comprising of multiple different clips to be upload with one vbo. It
also lays the groundwork to do certain tricks when drawing clipped
rectangles such as modifying the geometry instead of setting a clip
state.
2010-11-04 18:10:09 +00:00
Neil Roberts
4d5dc42dad cogl-framebuffer: Add a flag to skip flushing the clip state
This adds a flag to avoid flushing the clip state when flushing the
framebuffer state. This will be used by the journal to manage its own
clip state flushing.
2010-11-04 18:10:09 +00:00
Neil Roberts
c5d909d063 cogl: Don't flush the journal when flushing clip state
Flushing the clip state no longer does anything that would cause the
journal to flush. The clip state is only flushed when flushing the
framebuffer state and in all cases this ends up flushing the journal
in one way or another anyway. Avoiding flushing the journal will make
it easier to log the clip state in the journal.

Previously when trying to set up a rectangle clip that can't be
scissored or when using a path clip the code would use cogl_rectangle
as part of the process to fill the stencil buffer. This is now changed
to use a new internal _cogl_rectangle_immediate function which
directly uses the vertex array API to draw a triangle strip without
affecting the journal. This should be just as efficient as the
previous journalled code because these places would end up flushing
the journal immediately before and after submitting the single
rectangle anyway and flushing the journal always creates a new vbo so
it would effectively do the same thing.

Similarly there is also a new internal _cogl_clear function that does
not flush the journal.
2010-11-04 18:10:08 +00:00
Neil Roberts
a39b292d90 cogl-path: Use the vertex array API instead of CoglVertexBuffer
The new vertex array is now implemented in terms of the
CoglVertexBuffer anyway so it should be slightly faster to use a
vertex array directly.
2010-11-04 18:09:42 +00:00
Neil Roberts
60de7939ee cogl: Move the clip stack dirtiness to the context rather than the FB
Previously we tracked whether the clip stack needs flushing as part of
the CoglClipState which is part of the CoglFramebuffer state. This is
a bit odd because most of the clipping state (such as the clip planes
and the scissor) are part of the GL context's state rather than the
framebuffer. We were marking the clip state on the framebuffer dirty
every time we change the framebuffer anyway so it seems to make more
sense to have the dirtiness be part of the global context.

Instead of a just a single boolean to record whether the state needs
flushing, the CoglContext now holds a reference to the clip stack that
was flushed. That way we can flush arbitrary stack states and if it
happens to be the same as the state already flushed then Cogl will do
nothing. This will be useful if we log the clip stack in the journal
because then we will need to flush unrelated clip stack states for
each batch.
2010-11-04 18:08:27 +00:00
Neil Roberts
57574f3995 cogl-clip-stack: Don't allocate a separate struct for CoglClipStack
Instead of having a separate CoglHandle for CoglClipStack the code is
now expected to directly hold a pointer to the top entry on the
stack. The empty stack is then the NULL pointer. This saves an
allocation when we want to copy the stack because we can just take a
reference on a stack entry. The idea is that this will make it
possible to store the clip stack in the journal without any extra
allocations.

The _cogl_get_clip_stack and set functions now take a CoglClipStack
pointer instead of a handle so it would no longer make sense to make
them public. However I think the only reason we would have wanted that
in the first place would be to save the clip state between switching
FBOs and that is no longer necessary.
2010-11-04 18:08:27 +00:00
Neil Roberts
314e980a3b cogl: Don't flush the framebuffer state for the internal draw
CoglVertexAttribute has an internal draw function that is used by the
CoglJournal to avoid the call to cogl_journal_flush which would
otherwise end up recursively flushing the journal forever. The
enable_gl_state function called by this was previously also calling
_cogl_flush_framebuffer_state. However the journal code tries to
handle this function specially by calling it with a flag to disable
flushing the modelview matrix. This is useful because the journal
handles flushing the modelview itself. Without this patch the journal
state ends up getting flushed twice. This isn't a particularly big
problem currently because the matrix stack has caching to recognise
when it would push the same state twice and bails out. However if we
later want to use the framebuffer flush flags to override a particular
state of the framebuffer (such as the clip state) then we need to make
sure the flush isn't called twice.
2010-11-04 18:08:27 +00:00
Neil Roberts
738a669fc2 cogl-buffer: Use void* instead of guint8* for map and set_data
Unless the CoglBuffer is being used for texture data then it's
relatively unlikely that the data will contain an array of bytes. For
example if it's used as a vertex array then it's more likely to be
floats or some vertex struct. In that case it's much more convenient
if set_data and map use void* pointers so that we can avoid a cast.
2010-11-04 18:04:03 +00:00
Neil Roberts
390bdd2a27 cogl-primitive: Fix the texture attribute offsets
The offsets for the texture coordinate attributes in the convenience
constructors were all wrong.
2010-11-04 17:59:33 +00:00
Neil Roberts
17aaaac336 cogl-primitive: Fix a typo in new_with_attributes_array
A typo in the g_return_val_if_fail was causing it to segfault.
2010-11-04 17:59:33 +00:00
Neil Roberts
b6eaab812b cogl-primitive: Add the missing cogl_primitive_new_p2 function
There was a struct defined for CoglP2Vertex but there was no
constructor function to use it.
2010-11-04 17:59:28 +00:00
Neil Roberts
1935855cdd cogl-primitive: Fix the ref-counting for the convenience constuctors
The convenience constructors for the builtin vertex structs were
creating the primitive and then immediately destroying it and
returning the pointer. I think the intention was to unref the
attributes instead. This adds an internal wrapper around the
new_with_attributes_array constructor which unrefs the attributes
instead of the primitive. The convenience constructors now use that.
2010-11-04 17:57:09 +00:00
Robert Bragg
3c35b95a84 primitive: fix prototypes and start adding docs
This fixes the prototypes for the cogl_primitive_new_xyz functions and
also adds documentation with examples for each one.
2010-11-04 17:57:05 +00:00
Neil Roberts
00397a313c cogl-gles2-wrapper: Fix a reference to the old name for CoglPipeline
The GLES2 wrapper was referring to COGL_MATERIAL_PROGRAM_TYPE_GLSL but
this has since been renamed to COGL_PIPELINE_PROGRAM_TYPE_GLSL so the
GLES2 backend wouldn't compile.
2010-11-04 14:56:44 +00:00
Robert Bragg
5abdbd5f7a gles2: disable vbos until while we rework backend
The gles2 wrapper functions don't understand about the CoglBuffer API so
they don't support attributes stored in a CoglVertexArray. Instead of
teaching the backend about buffers we are going to wait until we have
overhauled the GLES 2 backend. We are currently making progress
consolidating the GLES 2 backend with a new GLSL backend for
CoglMaterial. This will hugely simplify the GLES 2 support and share
code with the OpenGL backend. In the end it's hoped that this problem
will simply go away so it doesn't make much sense to solve it with the
current design.
2010-11-03 18:09:23 +00:00
Robert Bragg
8034dc87d4 cogl: rename CoglMaterial -> CoglPipeline
This applies an API naming change that's been deliberated over for a
while now which is to rename CoglMaterial to CoglPipeline.

For now the new pipeline API is marked as experimental and public
headers continue to talk about materials not pipelines. The CoglMaterial
API is now maintained in terms of the cogl_pipeline API internally.
Currently this API is targeting Cogl 2.0 so we will have time to
integrate it properly with other upcoming Cogl 2.0 work.

The basic reasons for the rename are:
- That the term "material" implies to many people that they are
  constrained to fragment processing; perhaps as some kind of high-level
  texture abstraction.
    - In Clutter they get exposed by ClutterTexture actors which may be
      re-inforcing this misconception.
- When comparing how other frameworks use the term material, a material
  sometimes describes a multi-pass fragment processing technique which
  isn't the case in Cogl.
- In code, "CoglPipeline" will hopefully be a much more self documenting
  summary of what these objects represent; a full GPU pipeline
  configuration including, for example, vertex processing, fragment
  processing and blending.
- When considering the API documentation story, at some point we need a
  document introducing developers to how the "GPU pipeline" works so it
  should become intuitive that CoglPipeline maps back to that
  description of the GPU pipeline.
- This is consistent in terminology and concept to OpenGL 4's new
  pipeline object which is a container for program objects.

Note: The cogl-material.[ch] files have been renamed to
cogl-material-compat.[ch] because otherwise git doesn't seem to treat
the change as a moving the old cogl-material.c->cogl-pipeline.c and so
we loose all our git-blame history.
2010-11-03 18:09:23 +00:00
Robert Bragg
959af183b1 pango: Use CoglMaterial type for materials
Instead of using the CoglHandle type for material variables this updates
the pango code to use CoglMaterial * instead. CoglHandle is the old
typename which is being phased out of the API.
2010-11-03 18:09:23 +00:00
Robert Bragg
7ee99aaa83 pango: push/pop source instead of trashing users source
The pango-display-list code was calling cogl_set_source in numerous
places and it didn't appear to be saving the users source to restore
later. This could result in the user inadvertantly drawing a primitive
with one of these internally managed materials instead of one that they
chose. To rectify this the code now uses cogl_{push,pop}_source to save
and restore the users source.
2010-11-03 18:09:22 +00:00
Robert Bragg
4e69c73085 primitives: implements cogl_polygon on vertex_attributes
This updates the implementation of cogl_polygon so it sits on the new
CoglVertexArray and CoglVertexAttribute apis. This lets us minimize the
number of different drawing paths we have to maintain in Cogl.

Since the sliced texture support for cogl_polygon has been broken for a
long time now and no one has complained this patch also greatly
simplifies the code by not doing any special material validation so
cogl_polygon will be restricted in the same way as
cogl_draw_vertex_attributes. (i.e. sliced textures not supported).
2010-11-03 18:09:22 +00:00
Robert Bragg
f9d9b1b157 journal: port to the vertex_attributes API
Instead of using raw OpenGL in the journal we now use the vertex
attributes API instead. This is part of an ongoing effort to reduce the
number of drawing paths we maintain in Cogl.
2010-11-03 18:09:22 +00:00
Robert Bragg
f82b32cb3b vertex-buffer: use cogl_get_rectangle_indices
The functionality of cogl_vertex_buffer_indices_get_for_quads is now
provided by cogl_get_rectangle_indices so this reworks the former to now
work in terms of the latter so we don't have duplicated logic.
2010-11-03 18:09:22 +00:00
Robert Bragg
670ea32dbd vertex-buffer: port to CoglVertexAttributes + CoglPrimitive
As part of an ongoing effort to reduce the number of draw paths we have
in Cogl this re-works CoglVertexBuffer to use the CoglVertexAttribute
and CoglPrimitive APIs instead of using raw GL.
2010-11-03 18:09:15 +00:00
Robert Bragg
69b1f756d1 primitive: adds immutable ref/unref mechanism
This adds a way to mark that a primitive is in use so that modifications
will generate a warning. The plan is to use this mechanism when batching
primitives in the journal to warn users that mid-scene modifications of
primitives is not allowed.
2010-11-03 18:04:31 +00:00
Robert Bragg
2d58d3f1b6 primitive: Adds convenience constructors
This adds convenience primitive constructors named like:
  cogl_primitive_new_p3 or
  cogl_primitive_new_p3c4 or
  cogl_primitive_new_p3t2c4
where the letters correspond to the interleved vertex attributes layouts
such as CoglP3Vertex which is a struct with 3 float x,y,z members for
the [p]osition, or CoglP3T2C4Vertex which is a struct with 3 float x,y,z
members for the [p]osition, 2 float s,t members for the [t]exture
coordinates and 4 unsigned byte r,g,b,a members for the [c]olor.

The hope is that people will find these convenient enough to replace
cogl_polygon.
2010-11-03 18:04:31 +00:00
Robert Bragg
0cd077dc7e cogl: Adds experimental CoglPrimitive API
A CoglPrimitive is a retainable object for drawing a single primitive,
such as a triangle strip, fan or list.

CoglPrimitives build on CoglVertexAttributes and CoglIndices which
themselves build on CoglVertexArrays and CoglIndexArrays respectively.

A CoglPrimitive encapsulates enough information such that it can be
retained in a queue (e.g. the Cogl Journal, or renderlists in the
future) and drawn at some later time.
2010-11-03 18:04:31 +00:00
Robert Bragg
dd63078bd3 cogl: Adds experimental CoglVertexAttribute API
A CoglVertexAttribute defines a single attribute contained in a
CoglVertexArray. I.e. a CoglVertexArray is simply a buffer of N bytes
intended for containing a collection of attributes (position, color,
normals etc) and a CoglVertexAttribute defines one such attribute by
specifying its start offset in the array, its type, the number of
components and the stride etc.
2010-11-03 18:04:26 +00:00
Robert Bragg
3d14fbc308 cogl: Adds experimental CoglIndices API
CoglIndices define a range of indices inside a CoglIndexArray. I.e. a
CoglIndexArray is simply a buffer of N bytes and you can then
instantiate multiple CoglIndices collections that define a sub-region of
a CoglIndexArray by specifying a start offset and an index data type.
2010-11-03 18:04:00 +00:00
Robert Bragg
8ca80e47c4 cogl: Adds experimental CoglVertexArray type
This adds a new CoglVertexArray object which is a subclass of CoglBuffer
used to hold vertex attributes. A later commit will add a
CoglVertexAttribute API which will be used to describe the attributes
inside a CoglVertexArray.
2010-11-03 18:04:00 +00:00
Robert Bragg
3aba41e202 cogl: Adds experimental CoglIndexArray type
A CoglIndexArray is a subclass of CoglBuffer and will be used to hold
vertex indices. A later commit will add a CoglIndices API which will
allow describing a range of indices inside a CoglIndexArray.
2010-11-03 18:04:00 +00:00
Robert Bragg
eac167df1c buffer: adds immutable ref/unref mechanism
This adds an internal mechanism to mark that a buffer is in-use so that
a warning can be generated if the user attempts to modify the buffer.

The plans is for the journal to use this mechanism so that we can warn
users about mid-scene modifications of buffers.
2010-11-03 18:03:55 +00:00
Robert Bragg
efa11f8a8f buffer: make _bind() return base pointer
We now make _cogl_buffer_bind return a base pointer for the bound buffer
which can be used with OpenGL. The pointer will be NULL for GPU based
buffers or may point to an malloc'd buffer. Since OpenGL expects an
offset instead of a pointer when dealing with buffer objects this means
we can handle fallback malloc buffers and GPU buffers in a consistent
way.
2010-11-03 17:28:45 +00:00
Robert Bragg
35ddc5407e material: Bail out faster if re-flushing unchanged material
This allows _cogl_material_flush_gl_state to bail out faster if
repeatedly asked to flush the same material and we can see the material
hasn't changed.

Since we can rely on the material age incrementing when any material
property changes or any associated layer property changes then we can
track the age of the material after flushing so it can be compared with
the age of the material if it is subsequently re-flushed. If the age is
the same we only have to re-assert the texture object state.
2010-11-03 17:28:45 +00:00
Robert Bragg
bbf27e6b28 material-node: track if node owns reference on parent
MaterialNodes are used for the sparse graph of material state and layer
state. In the case of materials there is the idea of weak materials that
don't take a reference on their parent and in that case we need to be
careful not to unref our parent during
_cogl_material_node_unparent_real. This adds a has_parent_reference
member to the CoglMaterialNode struct so we now know when to skip the
unref.
2010-11-03 17:28:45 +00:00
Robert Bragg
e5202d6a0d cogl-object: correctly free user_data_array in _unref
If there is private data associated with a CoglObject then there may be
a user_data_array that needs to be freed. The code was mistakenly
freeing the array inside the loop that was actually iterating over the
user data array notifying the objects destruction instead of waiting
until all the data entries had been destroyed.
2010-11-03 17:28:45 +00:00
Owen W. Taylor
0b4b1ca1ca Don't leave stale invalidated queued redraws around
Once an actor had _clutter_stage_queue_redraw_entry_invalidate()
called on it once, then priv->queue_redraw_entry would point to
an entry with entry->actor NULL. _clutter_stage_queue_actor_redraw()
doesn't handle this case and no further redraws would be queued.

To fix this, NULL out priv->queue_redraw_entry() and then make sure
we free the invalidated entry in
_clutter_stage_maybe_finish_queue_redraws() just as we do for
still valid entries.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2389
2010-11-03 15:43:55 +00:00
Neil Roberts
02a3670e88 win32: Fix a couple of build warnings
* clutter-backend-win32 had an unused variable

* clutter-event-win32 was using the abs function without including
  stdlib.h
2010-11-01 15:21:04 +00:00
Neil Roberts
f13f545aa9 clutter-backend-win32: Use g_object_unref on the stage manager
Previously when trying to destroy all of the stages in the backend
dispose function it would poke directly in the ClutterStageManager
struct to get the list. In 8613013ab0 the defintion of
ClutterStageManager moved to a different header which isn't included
by the Win32 backend so it wouldn't compile. In that commit the X11
backend was changed to unref the stage manager instead of poking in
the internals so we should do the same for the win32 backend.
2010-11-01 15:14:07 +00:00
Damien Lespiau
907490d795 clone: Remove checks in set_source_internal()
One of the ideas behind _internal() functions is to be able to have a
version of the original one without checks (among other things). As
these functions are either static or private to the library, we control
the arguments given to it, and thus no need for checking them again
here.
2010-11-01 12:16:53 +00:00
Damien Lespiau
a318fe5ca5 texture: Warn when the file loaded from a ClutterScript can't be found
Telling the user about files not found when loading a ClutterScript with
ClutterTextures in it is very useful and can save a few minutes (or
hours) of frustation because it "does not work".
2010-11-01 11:43:35 +00:00
Neil Roberts
2ee0e40848 Merge cogl-program-{gl,gles}.c into one cogl-program.c
This merges the two implementations of CoglProgram for the GLES2 and
GL backends into one. The implementation is more like the GLES2
version which would track the uniform values and delay sending them to
GL. CoglProgram is now effectively just a GList of CoglShaders along
with an array of stored uniform values. CoglProgram never actually
creates a GL program, instead this is left up to the GLSL material
backend. This is necessary on GLES2 where we may need to relink the
user's program with different generated shaders depending on the other
emulated fixed function state. It will also be necessary in the future
GLSL backends for regular OpenGL. The GLSL and ARBfp material backends
are now the ones that create and link the GL program from the list of
shaders. The linked program is attached to the private material state
so that it can be reused if the CoglProgram is used again with the
same material. This does mean the program will get relinked if the
shader is used with multiple materials. This will be particularly bad
if the legacy cogl_program_use function is used because that
effectively always makes one-shot materials. This problem will
hopefully be alleviated if we make a hash table with a cache of
generated programs. The cogl program would then need to become part of
the hash lookup.

Each CoglProgram now has an age counter which is incremented every
time a shader is added. This is used by the material backends to
detect when we need to create a new GL program for the user program.

The internal _cogl_use_program function now takes a GL program handle
rather than a CoglProgram. It no longer needs any special differences
for GLES2. The GLES2 wrapper function now also uses this function to
bind its generated shaders.

The ARBfp shaders no longer store a copy of the program source but
instead just directly create a program object when cogl_shader_source
is called. This avoids having to reupload the source if the same
shader is used in multiple materials.

There are currently a few gross hacks to get the GLES2 backend to work
with this. The problem is that the GLSL material backend is now
generating a complete GL program but the GLES2 wrapper still needs to
add its fixed function emulation shaders if the program doesn't
provide either a vertex or fragment shader. There is a new function in
the GLES2 wrapper called _cogl_gles2_use_program which replaces the
previous cogl_program_use implementation. It extracts the GL shaders
from the GL program object and creates a new GL program containing all
of the shaders plus its fixed function emulation. This new program is
returned to the GLSL material backend so that it can still flush the
custom uniforms using it. The user_program is attached to the GLES2
settings struct as before but its stored using a GL program handle
rather than a CoglProgram pointer. This hack will go away once the
GLSL material backend replaces the GLES2 wrapper by generating the
code itself.

Under Mesa this currently generates some GL errors when glClear is
called in test-cogl-shader-glsl. I think this is due to a bug in Mesa
however. When the user program on the material is changed the GLSL
backend gets notified and deletes the GL program that it linked from
the user shaders. The program will still be bound in GL
however. Leaving a deleted shader bound exposes a bug in Mesa's
glClear implementation. More details are here:

https://bugs.freedesktop.org/show_bug.cgi?id=31194
2010-10-28 19:51:42 +01:00
Neil Roberts
65d7a113ee cogl: Use separate materials for set_source_color and texture
Previously cogl_set_source_color and cogl_set_source_texture modified
a single global material. If an application then mixes using
cogl_set_source_color and texture then the material will constantly
need a new ARBfp program because the numbers of layers alternates
between 0 and 1. This patch just adds a second global material that is
only used for cogl_set_source_texture. I think it would still end up
flushing the journal if cogl_set_source_texture is used with multiple
different textures but at least it should avoid a recompile unless the
texture target also changes. It might be nice to somehow attach a
material to the CoglTexture for use with cogl_set_source_texture but
it would be difficult to implement this without creating a circular
reference.
2010-10-27 15:07:03 +01:00
Robert Bragg
89cedc7800 Move IndicesType and VerticesMode typedefs to cogl-types.h
This moves the CoglIndicesType and CoglVerticesMode typedefs from
cogl-vertex-buffer.h to cogl-types.h so they can be shared with the
anticipated cogl vertex attribute API.
2010-10-26 17:25:33 +01:00
Robert Bragg
e3bf83eab5 buffer: BufferBindTarget + BufferUsageHint enum renaming
This renames the BufferBindTarget + BufferUsageHint enums to match the
anticipated new APIs for "index arrays" and "vertex arrays" as opposed
to using the terms "vertices" or "indices".
2010-10-26 17:25:27 +01:00
Robert Bragg
9efe7ca5bc buffer: warn if (offset + size) > buffer->size
previously we would silently bail out if the given offset + data size
would overflow the buffer size. Now we use g_return_val_if_fail so we
get a warning if we hit this case.
2010-10-26 16:40:54 +01:00
Robert Bragg
b2963b4eef pixel-array: Remove some benign variables
There were some completely unused static global variables declared in
cogl-pixel-array.c which this patch removes.
2010-10-26 16:16:50 +01:00
Robert Bragg
902c18ad87 pixel-array: Remove flags member and flag macros
There are no flags associated with pixel-arrays so we don't need the
flags member or flag macros.
2010-10-26 16:16:40 +01:00
Robert Bragg
1c8b355bbb buffer: Add a store_created bit field member
This adds a store_created bit field to CoglBuffer so we know if the
underlying buffer has been allocated yet. Previously the code was trying
to do something really wrong by accidentally using the
COGL_PIXEL_ARRAY_FLAG_IS_SET macro (note "PIXEL_ARRAY") and what is more
odd was the declaration of a CoglPixelArray *pixel_array in
cogl-buffer.c which the buffer was being cast too before calling using
the macro. Probably this was the fall-out of some previous code
re-factoring.
2010-10-26 16:16:29 +01:00
Robert Bragg
d5188c26b6 buffer: remove flag macros
All the macros get used for are to |= (a new flag bit), &= ~(a flag bit)
or use the & operator to test if a flag bit is set. I haven't found the
code more readable with these macros, but several times now I've felt
the need to double check if these macros do anything else behind the
hood or I've forgotten what flags are available so I've had to go to the
macro definition to see what the full enum names are for the flags (the
macros use symbol concatenation) so I can search for the definition of
all the flags. It turns out they are defined next to the macro so you
don't have to search far, but without the macro that wouldn't have been
necessary.

The more common use of the _IS_SET macro is actually more concise
expanded and imho since it doesn't hide anything in a separate header
file the code is more readable without the macro.
2010-10-26 13:21:11 +01:00
Robert Bragg
bc3a26d035 material: Adds _cogl_material_get_layer_texture
This is a counter part for _cogl_material_layer_get_texture which takes
a layer index instead of a direct CoglMaterialLayer pointer. The aim is
to phase out code that directly iterates the internal layer pointers of
a material since the layer pointers can change if any property of any
layer is changed making direct layer pointers very fragile.
2010-10-26 13:06:54 +01:00
Robert Bragg
0288ba3911 material: add internal layer filter getters
This adds internal _cogl_material_get_layer_filters and
_cogl_material_get_layer_{min,mag}_filter functions which can be used to
query the filters associated with a layer using a layer_index, as
opposed to a layer pointer. Accessing layer pointers is considered
deprecated so we need to provide layer_index based replacements.
2010-10-26 13:04:05 +01:00
Robert Bragg
6fd26630ba material: Adds missing get_layer_wrap_mode_xyz prototypes
This adds missing getter function prototypes for
cogl_material_get_layer_wrap_mode_{s,t,p}
2010-10-26 13:02:23 +01:00
Robert Bragg
32ae904d81 vertex-buffer: remove the unstrided CBO type
When we come to submitting the users given attributes we sort them into
different types of buffers. Previously we had three types; strided,
unstrided and multi-pack. Really though unstrided was just a limited
form of multi-pack buffer and didn't imply any hind of special
optimization so this patch consolidates some code by reducing to just
two types; strided and multi-pack.
2010-10-26 12:38:15 +01:00
Robert Bragg
94e0619785 material: Adds _cogl_material_pre_paint_for_layer
This is a counter part for _cogl_material_layer_pre_paint which takes a
layer index instead of a direct CoglMaterialLayer pointer. The aim is to
phase out code that directly iterates the internal layer pointers of a
material since the layer pointers can change if any property of any
layer is changed making direct layer pointers very fragile.
2010-10-26 12:17:27 +01:00
Robert Bragg
701a693661 cogl: Adds {push,pop,get}_source functions
This exposes the idea of a stack of source materials instead of just
having a single current material. This allows the writing of orthogonal
code that can change the current source material and restore it to its
previous state. It also allows the implementation of new composite
primitives that may want to validate the current source material and
possibly make override changes in a derived material.
2010-10-26 12:08:20 +01:00
Emmanuele Bassi
bf6c635e9d Merge branch 'private-cleanup'
* private-cleanup:
  Add copyright notices
  Clean up clutter-private.h/6
  Clean up clutter-private.h/5
  Clean up clutter-private.h/4
  Clean up clutter-private.h/3
  Clean up clutter-private.h/2
  Clean up clutter-private.h/1
2010-10-25 23:44:53 +01:00
Chris Lord
cb7d2943ea state: Correct the documentation
Correct the argument order and replace all occurrences of
clutter_state_change() with the appropriate clutter_state_set_state() or
clutter_state_warp_to_state().
2010-10-25 17:21:20 +01:00
Chris Lord
bfc1583d76 state: Fix warping to the current state during transitions
If you warp to a state, it should be immediately set. Check if the
animation is in progress when warping to a state and don't short-circuit
in the already-set check if we're not animating.
2010-10-25 17:21:20 +01:00
Chris Lord
35c35de55c state: Handle setting keys for the current target state
Add special behaviour when you set the key of the current target state:
- If the state is transitioning, add/modify the interval so that the new
  key transitions from the current time (taking into account pre-delay) to
  its target final property
- If the state is set but has already finished animating/was warped to,
  set the property immediately
2010-10-25 17:21:20 +01:00
Chris Lord
73dcbedc80 state: Fix crasher when removing the last key of a transitioning state
If ClutterState is in the middle of a transition and you remove all the
keys from the target state, the target state will be destroyed without
stopping the animation/unsetting the target state. This caused an invalid
memory access.
2010-10-25 17:21:20 +01:00
Chris Lord
5700b34b9c state: Allow setting a NULL state
Allow setting a %NULL state. This has the effect of unsetting the current
state and stopping all animation. This allows you to, for example, start
a state transition, set the state to NULL, alter the state transition
and then resume it again, by just setting it.
2010-10-25 17:21:20 +01:00
Emmanuele Bassi
ef6b46d826 Merge branch 'wip/path-constraint'
* wip/path-constraint:
  docs: Add PathConstraint
  tests: Add a PathConstraint interactive test
  Add ClutterPathConstraint
  actor-box: Add setters for origin and size
2010-10-25 17:09:46 +01:00
Emmanuele Bassi
f6ab7eccd9 docs: Add PathConstraint 2010-10-25 16:09:40 +01:00
Emmanuele Bassi
6b2cbb9908 Add ClutterPathConstraint
ClutterPathConstraint is a simple Constraint implementation that
modifies the allocation of the Actor to which is has been applied using
a progress value and a ClutterPath.
2010-10-25 15:46:04 +01:00
Emmanuele Bassi
3f6ec0ba5a actor-box: Add setters for origin and size 2010-10-25 15:45:35 +01:00
Neil Roberts
6da18b6e4f win32: Fix clutter_win32_disable_event_retrieval
There was previously a flag that gets set when this function was
called but nothing checked it so the function effectively did
nothing. Also the flag was a member of the backend struct but this
can't be used because the function should be called before
clutter_init so the backend is not ready yet. This patch makes the
event disabling work more like the X11 backend and set a global
variable instead.
2010-10-25 13:19:18 +01:00
Ole André Vadla Ravnås
e6099cdd4b win32: Use _clutter_actor_rerealize() like X11 backend does
http://bugzilla.clutter-project.org/show_bug.cgi?id=1654
2010-10-25 13:19:18 +01:00
Neil Roberts
e66c679e84 win32: Add a public clutter_win32_handle_event function
This function handles a single windows message. The idea is that it
could be used by clutter-gtk to forward on events from a
GdkEventFilter. The function replaces the old message_translate()
function. That function didn't translate the event anymore anyway and
instead it could generate multiple events so
clutter_win32_handle_event seems like a more appropriate name. The
function returns TRUE or FALSE depending on whether the event was
completely handled instead of setting call_window_proc.
2010-10-25 13:19:17 +01:00
Neil Roberts
52744c0d9d clutter-stage: Set the Cogl framebuffer size after allocating
When handling an allocation on the stage, Clutter uses the oppurtunity
to inform Cogl of the new size of the framebuffer so that it can
handle the viewport correctly. It queries the size of the window
implementation using a backend virtual function. However it was doing
this before letting the backend handle the allocation so on Win32 it
would end up using the previous framebuffer size. This wasn't
affecting the X11 backend because in that case the resizes are
asynchronous so setting the stage size causes one allocation which
ends up sending a window size request. Eventually a ConfigureNotify is
received which causes the size of the stage to be set again and
another allocation is fired meaning the framebuffer size will be set
again this time with the correct size. In Win32 the resizes are
synchronous so we don't have this second allocation.
2010-10-25 13:19:17 +01:00
Neil Roberts
cc7977988c cogl-context-winsys: Avoid zero-length arrays
When compiling for non-glx platforms the winsys feature data array
ends up empty. Empty arrays cause problems for MSVC so this patch adds
a stub entry so that the array always has at least one entry.

Based on a patch by Ole André Vadla Ravnås
2010-10-25 13:18:25 +01:00
Neil Roberts
f1752ff3ba Avoid mixing declarations and code
Mixing declarations and code causes problems for MSVC as it is a C99
feature so we should try to avoid it.
2010-10-25 13:18:25 +01:00
Neil Roberts
8e3674dcc1 Avoid variable length arrays in clutter-backend-x11
There was an array whose length was define by a static const int
variable. GCC seems to consider this a variable-length array so it
will cause warnings now that -Wvla is enabled. We might as well make
this constant a #define instead to avoid the warning.
2010-10-25 13:18:25 +01:00
Giovanni Campagna
164af55a6e Avoid warnings on ClutterClone with a NULL source
clutter_clone_apply_transform should check the source before calling
methods on it, else criticals will be emitted.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2381
2010-10-25 12:36:00 +01:00
Ole André Vadla Ravnås
276acf5854 binding-pool: Use the correct marshaller 2010-10-25 00:39:13 +01:00
Ole André Vadla Ravnås
c792431538 interval: Remember to chain up to parent in finalize() 2010-10-25 00:31:36 +01:00
Neil Roberts
d5634e37a2 cogl-texture-2d-sliced: Use the other backends for the slices
Instead of directly manipulating GL textures itself,
CoglTexture2DSliced now works in terms of CoglHandles. It creates the
texture slices using cogl_texture_new_with_size which should always
end up creating a CoglTexture2D because the size should fit. This
allows us to avoid replicating some code such as the first pixel
mipmap tracking and it better enforces the separation that each
texture backend is the only place that contains code dealing with each
texture target.
2010-10-22 12:19:04 +01:00
Neil Roberts
61f2f1c024 Support foreign textures in the texture-2d and rectangle backends
This adds two new internal functions to create a foreign texture for
the texture 2d and rectangle backends. cogl_texture_new_from_foreign
will now use one of these backends directly if there is no waste
instead of always using the sliced texture backend.
2010-10-22 12:19:02 +01:00
Emmanuele Bassi
cf46c8197e Add copyright notices 2010-10-21 13:13:00 +01:00
Emmanuele Bassi
46c597a1f6 Clean up clutter-private.h/6
Move all Actor private API to a separate file.
2010-10-21 12:22:17 +01:00
Emmanuele Bassi
cf3a29f224 Clean up clutter-private.h/5
Move PaintVolume private API to a separate header.
2010-10-21 12:22:17 +01:00
Emmanuele Bassi
43edfc9400 Clean up clutter-private.h/4
Move the private Backend API to a separate header.

This also allows us to finally move the class vtable and instance
structure to a separate file and plug the visibility hole that left
the Backend class bare for everyone to poke into.
2010-10-21 12:22:17 +01:00
Emmanuele Bassi
8613013ab0 Clean up clutter-private.h/3
Move Stage private API to a separate header.
2010-10-21 11:33:26 +01:00
Emmanuele Bassi
999c063784 Clean up clutter-private.h/2
Move StageManager private API to a different header.
2010-10-21 11:30:19 +01:00
Emmanuele Bassi
c1771d152e Clean up clutter-private.h/1
Move DeviceManager/InputDevice private API to a different header.
2010-10-21 10:54:14 +01:00
Emmanuele Bassi
68156c24c1 build: Remove unused Makefile.am
We switched to a non-recursive layout, hence we don't need Makefile.am
in the osx/ and fruity/ sub-directories.
2010-10-19 17:48:15 +01:00
Emmanuele Bassi
dd2f55c6f6 x11: Protect XComposite API calls
Since we allow compiling Clutter without the XComposite extension
available, we need to protect the calls to the XComposite API with
the guards provided by the configure script.
2010-10-19 10:43:50 +01:00
Emmanuele Bassi
21eb49098a script: Fix the memory management
Currently, the memory management in ClutterScript is overly complicated.
The basic design tenet should be:

  - ClutterScript owns a reference on every object it creates

This allows the Script instance to reliably handle the lifetime of the
instances from creation to disposal.

In case of unmerge, the Script instance should destroy any Actor
instance, except for the Stage, and release the reference it owns. The
Stage is special because it's really owned by Clutter itself, and it
should be destroyed explicitly.

When disposing the Script itself, it should just release the reference;
any parented actor, or any InitiallyUnowned instance, will then be
managed by the parent object, as they should, while every GObject
instance will go away, as documented.

This commit is based on a patch by:

  Henrik Hedberg <hhedberg@innologies.fi>

http://bugzilla.clutter-project.org/show_bug.cgi?id=2316
2010-10-19 01:42:19 +01:00
Emmanuele Bassi
20a359cc53 debug: Do not use '&' in the messages
Use ':' as a separator between G_STRLOC and the debug message, like we
do for warnings.
2010-10-19 01:42:19 +01:00
Emmanuele Bassi
78d4073f8e Remove unused variables 2010-10-19 01:42:19 +01:00
Damien Lespiau
32270730bd build: Fix EGL/CEX100 build with GLES2
Some headers files have been renamed or removed and the gles(2) did not
compile anymore, fix that.
2010-10-18 16:08:47 +01:00
Emmanuele Bassi
0f613ea134 cairo-texture: Allow overriding the surface creation
By using a new signal, ::create-surface (width, height), it should be
possible for third party code and sub-classes to override the default
surface creation code in CairoSurface.

This commit takes a bit of the patch from:

  http://bugzilla.clutter-project.org/show_bug.cgi?id=1878

which cleans up CairoTexture; the idea, mutuated from that bug, is that
the CairoTexture actor checks whether the surface it has it's an image
one, and in that case it uses a Cogl texture as the backing store. In
case the surface is not an image one we assume that the surface itself
has some way of updating the GL state and flush the surface.
2010-10-18 11:26:45 +01:00
Emmanuele Bassi
050e775da2 Move more classes to install_properties() 2010-10-18 11:26:45 +01:00
Emmanuele Bassi
8429aa8d75 Remove unnecessary GLib version checks
We now depend on a newer version of GLib than those checks tested for.
2010-10-18 11:26:45 +01:00
Emmanuele Bassi
7dd09e2186 Use G_DEFINE_BOXED_TYPE for all boxed types
We actually need a couple more macros for registering GValue
transformation functions. Those should be added to upstream
GLib.
2010-10-18 11:26:45 +01:00
Emmanuele Bassi
09a830d294 Remove conditional wrappers for property installation/notification
For the time being, just keep the #define's.
2010-10-18 11:26:45 +01:00
Emmanuele Bassi
9caf11f2d8 Use G_DEFINE_INTERFACE
GObject provides us with a nice, safe macro for defining interface
types.
2010-10-18 11:26:44 +01:00
Emmanuele Bassi
2b4ee9ab54 actor: Add more checks to the redraw queue 2010-10-15 16:05:44 +01:00
Emmanuele Bassi
56c89bd86b osx: Fix glib.h include path
The fix for removing glib/gmain.h introduced the wrong path for glib.h.
2010-10-15 12:40:43 +01:00
Roland Peffer
d842619755 osx: Add button mask to the modifier state translation
The modifier state translation is missing the CLUTTER_BUTTON*_MASK.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2365

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-10-14 18:23:02 +01:00
Kristian Høgsberg
134ce072e7 The amazing lazy-copy-back-repaint-page-flip
Always use pageflipping, but avoid full repaint by copying back dirty
regions from front to back.  Additionally, we dealy copying back until
we're ready to paint the new frame, so we can avoid copying areas that
will be repainted anyway.

This is the least amount of copying per frame we can get away with at all
and at the same time we don't have to worry about stalling the GPU on
synchronized blits since we always pageflip.
2010-10-14 16:23:05 +01:00
Kristian Høgsberg
cb5582c4ab Add wayland backend
This adds a clutter backend for running under the wayland window system.
Initial cogl framebuffer integration by Robert Bragg.
2010-10-14 16:23:05 +01:00
Kristian Høgsberg
a7cf98ebfc Initialize color masks lazily
When we don't use a window system drawable, we can't query the color
masks at context initialization time.  Do it lazily so we're sure to have
a current context with a valid framebuffer.
2010-10-14 16:23:05 +01:00
Robert Bragg
f456116c18 When unparenting an actor, remove queued redraws for all descendants
We need to make sure that redraws queued for actors on a stage are for
actors actually in the stage. So in clutter_actor_unparent() descend
through the children and remove redraws. Just removing the actor itself
isn't good enough since an entire hierarchy can be removed from the
stage without breaking it up into individual actors.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2359

This is based on an original patch from Owen Taylor who debugged the
root cause of this bug; thanks.
2010-10-14 16:19:55 +01:00
Robert Bragg
07f2dba7e2 stage: handle unclipped redraw following clipped
In the case that an unclipped redraw of an actor is queued after a
clipped we should update any existing ClutterStageQueueRedrawEntry
so entry->has_clip = FALSE and free the previous clip.
2010-10-14 15:29:33 +01:00
Emmanuele Bassi
e6418a9dec constraints: Remove unused variable 2010-10-12 15:44:57 +01:00
Emmanuele Bassi
4e724aed46 bind-constraint: Use ::queue-relayout
Instead of using the allocation-changed signal, use the queue-relayout
signal on the source to queue a relayout on the actor to which the
BindConstraint has been attached to.

The ::allocation-changed signal is not always enough, given that a
BindConstraint can use the position as well as the size of an actor to
drive the allocation of another; in this regard, it's much similar
to a ClutterClone, which requires a notification on every change, even
potential, and not just real ones, given the short-circuiting done
inside ClutterActor.
2010-10-12 14:09:47 +01:00
Emmanuele Bassi
5c82b2551c constraints: Do not check for :enabled
ClutterActor will do it for us.
2010-10-12 14:09:17 +01:00
Emmanuele Bassi
3f27afde24 actor: Use an explicit check for NULL
Follow the coding style, and don't use the implicit C boolean
equivalence for NULL pointers.
2010-10-12 14:08:07 +01:00
Emmanuele Bassi
3b72fdb20c actor: Queue a relayout when adding/removing constraints
Constraints change the way an actor is allocated; this warrants a
relayout.
2010-10-12 14:07:27 +01:00
Emmanuele Bassi
91a9a355c3 actor: Check CluterActorMeta:enabled
Instead of delegating the check for the ActorMeta:enabled property to
the sub-classes of ClutterActorMeta, ClutterActor can do the check prior
to using the ClutterActorMeta instances.
2010-10-12 14:07:17 +01:00
Emmanuele Bassi
3f6b82c9c9 actor: Add debugging note for allocation changes 2010-10-12 14:04:05 +01:00
Emmanuele Bassi
89a389cd2b actor-box: Split out ActorBox into its own file
clutter-actor.c is getting way too large, so splitting it up wherever
possible makes sense.
2010-10-11 15:57:22 +01:00
Emmanuele Bassi
7a54bdc65d vertex: Register progress function
This allows animating properties storing a ClutterVertex.
2010-10-11 15:52:50 +01:00
Emmanuele Bassi
4931802fee geometry: Register a progress function
This allows animating properties storing a ClutterGeometry.
2010-10-11 15:44:09 +01:00
Emmanuele Bassi
a5fc90d4d9 actor-box: Register a progress function
So that we can animate properties storing ClutterActorBox.
2010-10-11 15:39:19 +01:00
Emmanuele Bassi
2f21c851ea script: Fix annotation for get_object()'s return value 2010-10-11 15:39:19 +01:00
Emmanuele Bassi
dcf2662616 interval: Remove special casing for ClutterColor
ClutterColor registers a progress function on type initialization, so we
don't need to special case it any more.
2010-10-11 15:39:19 +01:00
Emmanuele Bassi
d5376bf317 color: Add Color.interpolate() method
The interpolate() method does what it says on the tin: it interpolates
between two colors using the given factor.

ClutterColor uses it to register a progress function for Intervals.
2010-10-11 15:39:19 +01:00
Neil Roberts
7e112472b5 cogl-texture-2d-sliced: Use the smallest possible waste
When picking a size for the last slice in a texture, Cogl would always
pick the biggest power of two size that doesn't create too much
waste and is less than or equal to the previous slice size. However
this can end up creating a texture that is bigger than needed if there
is a smaller power of two.

For example, if the maximum waste is 127 (the current default) and we
try to create a texture that is 257 pixels wide it will decide that
the next power of two (512) is too much waste (255) so it will create
the first slice at 256 pixels wide. Then we only have 1 pixel left to
allocate but Cogl would pick the next smaller size that has a small
enough waste which is 128. But of course 1 is already a power of two
so that's redundantly oversized by 127.

This patch fixes it so that whenever it finds a size that would be big
enough, instead of using exactly that it picks the next power of two
up from the size we need to fill.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2355
2010-10-11 14:40:04 +01:00
Emmanuele Bassi
1f106b35a9 Whitespace alignment fixes 2010-10-11 13:52:09 +01:00
Emmanuele Bassi
68d656c61b paint-volume: Add arguments checks
In some cases we access the arguments in public functions without, or
prior to checking the arguments.
2010-10-11 13:51:12 +01:00
Owen W. Taylor
8089af3c1b ClutterClone: Handle clone_source == NULL for get_paint_volume()
It's valid to have a ClutterClone without a clone source; in this
case the paint volume is empty.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2360
2010-10-11 13:43:39 +01:00
Emmanuele Bassi
e005892534 clone: Remove unnecessary G_UNLIKELY macros
A Clone:source property might be NULL, and we should not penalize
performance when we can just bail out early, because that would kind of
defeat the point.
2010-10-11 13:32:26 +01:00
Emmanuele Bassi
f8af2da4c8 osx: Compilation fixes
Replace deprecated symbols with the correct ones.
2010-10-10 09:31:55 +01:00
Emmanuele Bassi
981fed1f63 box-layout: Plug a memory leak
Similar to commit 4724be167f for
TableLayout.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2358
2010-10-08 13:29:49 +01:00
Neil Roberts
4724be167f Plug a memory leak in clutter-table-layout
Whenever the allocation is changed on a child of a ClutterTableLayout
and animations are not in effect then it would store a copy of the
allocation in the child meta data. However it was not freeing the old
copy of the allocation so it would end up with a small leak.

Instead of just changing it to free the old value this patch makes it
store the allocation inline in the meta data struct because it seems
that the size of an actor box is already quite small compared to the
size of the meta data struct so it is probably not worth having a
separate allocation for it. To detect the case when there has not yet
been an allocation a separate boolean is used instead of storing NULL.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2358
2010-10-08 12:11:39 +01:00
Damien Lespiau
155bde2465 texture: Fix the typos in the blurbs and make them not end with '.'
All the nifty things you discover when translating strings not exposed
to anyone. First the clutter-wide record of the number of typos in one
string. Second, ClutterTexture happened to have the only property blurbs
ending with a '.', remove them.
2010-10-05 08:39:40 +01:00
Damien Lespiau
2d56ed637c text: Rename the nick of the position property "Cursor Position"
the "position" property of ClutterText is really the position of the
cursor. Rename the nick accordingly not to confuse it with the position
of the actor itself and be consistent with all the other cursor-related
properties.
2010-10-05 08:25:06 +01:00
Damien Lespiau
a13182c740 cogl: Use Cogl (not COGL) consistently
If I remember correctly, Robert wants to name Cogl, Cogl (not COGL) so
start by having a consistent naming in the code.
2010-10-05 08:03:19 +01:00
Damien Lespiau
24577a0538 bin-layer: Fix the property blurbs
The descriptions for the 'y-align' and 'x-align' properties talk about a
layer and a layer manager. It seems that these properties are the
alignement factors relative to the BinLayout, so document them
accordingly.
2010-10-05 07:50:52 +01:00
Damien Lespiau
9ae1729f37 box-layout: Fix missing spaces in the blurbs of vertical and homogeneous 2010-10-04 18:52:57 +01:00
Damien Lespiau
9258f9bebb deform-effect: Fix Horiontal/Horizontal typo 2010-10-04 17:21:15 +01:00
Emmanuele Bassi
6af0ee2cbe cogl-x11: Trap glXDestroyPixmap()
There are ordering issues in the pixmap destruction with current and
past X11 server, Mesa and dri2. Under some circumstances, an X pixmap
might be destroyed with the GLX pixmap still referencing it, and thus
the X server will decide to destroy the GLX pixmap as well; then, when
Cogl tries to destroy the GLX pixmap, it gets BadDrawable errors.

Clutter 1.2 used to trap + sync all calls to glXDestroyPixmap(), but
then we assumed that the ordering issue had been solved. So, we're back
to square 1.

I left a Big Fat Comment™ right above the glXDestroyPixmap() call
referencing the bug and the reasoning behind the trap, so that we don't
go and remove it in the future without checking that the issue has been
in fact solved.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2324
2010-10-04 14:26:23 +01:00
Alejandro Piñeiro
f5aeabadd5 Fixing cally.pc.in and moving include headers to previous directory
After commit 8dd8fbdb some errors appear if you try work directly
against cally:

 * cally.pc.in removed some elements. After install clutter, doing
   pkg-config --cflags cally-1.0
   fails due missing winsys

 * cally headers were moved from clutter-1.0/cally to
   clutter-1.0/clutter/cally.  Applications using it (yes I know,
   nobody is officially using it) would require to:
    * Change their include.
    * Add directly a dependency to cally, in order to use the cally.pc
      file with the correct directory include.

Note: Take into account that accessibility support still works (ie:
clutter_get_accessibility_enabled). This bug only prevents
applications to work directly against cally (ie: create a CallyActor
subclass)

http://bugzilla.clutter-project.org/show_bug.cgi?id=2353

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-10-04 13:05:02 +01:00
Emmanuele Bassi
d3b6dd5ec7 effect: Fix up the class ABI
Landing the paint-box branch accidentally added two slots to the
ClutterEffectClass vtable, plus the get_paint_volume() function
pointer. This is an ABI break from 1.4.
2010-10-04 11:30:32 +01:00
Emmanuele Bassi
e1a1050a39 actor-box: Constify arguments for union
The input arguments for clutter_actor_box_union() should be constified,
since they will not be modified by the function.
2010-10-04 11:27:16 +01:00
Emmanuele Bassi
45b6d7d47a docs: Fix the annotations of ActorClass 2010-10-04 11:26:46 +01:00
Emmanuele Bassi
bdb24701f0 build: Add -xobjective-c to the fruity backend section
Like we do for the Quartz backend, we should turn on the -xobjective-c
compiler flag for the Fruity backend.

This does not mean that the backend actually works.
2010-10-04 10:52:36 +01:00
Emmanuele Bassi
0cf2f50ba6 build: Remove redundant EXTRA_DISTs
The files for the backend that we conditionally compile are
automatically added to the dist process by automake.
2010-10-04 09:09:13 +01:00
Emmanuele Bassi
a29623e838 build: Unconditionally add GLES2 shaders to EXTRA_DIST 2010-10-04 08:57:29 +01:00
Emmanuele Bassi
939333b4f2 build: Dist every backend file
All backend files should be present in the tarball generated by `make
dist`, to allow building Clutter on different platforms.
2010-10-03 16:10:44 +01:00
Emmanuele Bassi
6df136ae7c container: Do not emit a signal in the class handler
Yes, I am that stupid.
2010-10-03 15:28:14 +01:00
Emmanuele Bassi
e8d3ab4fd3 introspection: Skip Script.connect_signals_full()
It's meant to be used by language bindings, not by applications.
2010-10-03 15:16:41 +01:00
Emmanuele Bassi
19b93a94ae container: Fix the marshaller for ::child-notify
The marshaller was defined as OBJECT,OBJECT,PARAM but the signal
definition used only two arguments. Since the signal never worked
and we never got any report about it, nobody could be possibly
using the ::child-notify signal.
2010-10-03 15:12:01 +01:00
Emmanuele Bassi
7ac84cf7a3 container: Add child_notify() wrapper
The child_notify() virtual function on ClutterContainer does not have a
wrapper for implementations to call.
2010-09-30 14:58:23 +01:00
Emmanuele Bassi
fc344fb93a container: Implement ::child-notify
Since we added child properties to the Container interface we made a
guarantee that the ::child-notify signal would be emitted whenever a
property was set using clutter_container_child_set*().

We were lying.

The child_notify virtual function was not implemented, and the signal
was never emitted.

We also used a G_LIKELY() macro while checking for non-NULL on a
function pointer that was by default set to NULL, thus making the
setting of child properties far less efficient than needed.
2010-09-30 13:11:05 +01:00
Emmanuele Bassi
18ff73c244 build: Add more metadata to the introspection files 2010-09-30 12:43:10 +01:00
Emmanuele Bassi
fde6efc690 build: Make Cally.gir depend on Cogl.gir
Since Cally's introspection data depends on it.
2010-09-30 12:31:28 +01:00
Colin Walters
077a5b4c34 introspection: Update to changed variables for header file names
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-09-30 12:10:02 +01:00
Ray Strode
32d647ddd1 actor: sync entry has_clip member to clip state
The clutter stage has a list of entries of actors waiting to be redrawn.
Each entry has a "clip" ClutterPaintVolume member which represents which
how much of the actor needs to get redrawn.  It's possible for there to
be no clip associated with the entry.  In this case, the clip member is
invalid, the has_clip member should be set to false.

This commit fixes a bug where the has_clip member was not being
initially, explicitly set to false for new entries, and not being
explicitly set to false in the event the clip associated with the entry
is freed.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2350

Signed-off-by: Robert Bragg <robert@linux.intel.com>
2010-09-30 11:54:07 +01:00
Robert Bragg
fba6335291 actor: don't ignore clip for clipped redraws
In all the changes made recently to how we handle redraws and adding
support for paint-volumes we stopped looking at explicit clip regions
passed to _clutter_actor_queue_redraw_with_clip.

In _clutter_actor_finish_queue_redraw we had started always trying to
clip the redraw to the paint-volume of the actor, but forgot to consider
that the user may have already determined the clip region for us!

Now we first check if the given clip != NUll and if so we don't need to
calculate the paint-volume of the actor.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2349
2010-09-30 11:44:12 +01:00
Robert Bragg
18e3273fb1 x11-tfp: Implement get_paint_volume virtual
One of the later changes made on the paint volume branch before merging
with master was to make paint volumes opt in only since we couldn't make
any safe assumptions about how custom actors may constrain their
painting. We added very conservative implementations for the existing
Clutter actors - including for ClutterTexture which
ClutterX11TexturePixmap is a sub-class of - but we were conservative to
the extent of explicitly checking the GType of the actor so we would
avoid making any assumptions about sub-classes. The upshot was that we
neglected to implement the get_paint_volume vfunc for
ClutterX11TexturePixmap.

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

http://bugzilla.clutter-project.org/show_bug.cgi?id=2349
2010-09-30 11:44:12 +01:00
Robert Bragg
83eb5ab88c material: tweak dot file debug code
When using the debug function _cogl_debug_dump_materials_dot_file to
write a dot file representing the sparse graph of material state we now
only show a link between materials and layers when the material directly
owns that layer reference (i.e. just those referenced in
material->layer_differences) This makes it possible to see when
ancestors of a material are being deferred too for layer state.

For example when looking at the graph if you see that a material has an
n_layers of 3 but there is only a link to 2 layers, then you know you
need to look at it's ancestors to find the last layer.
2010-09-30 11:44:12 +01:00
Neil Roberts
d8a9026b84 win32: Fix the CLUTTER_* keysym macros
In 4ee05f8e21 the namespace for the clutter keysym macros were
changed to CLUTTER_KEY_* but the win32 events backend was still
referring to the old names.
2010-09-30 10:59:40 +01:00
Emmanuele Bassi
f753b0c4a1 Wrap g_object_class_install_properties()
GObject ≥ 2.26.0 added a nice convenience call for installing properties
from an array of GParamSpec. Since we're already storing all GParamSpec
in an array in order to use them with g_object_notify_by_pspec(), this
turns out nicely for us.

Since we do not depend on GLib 2.26 (yet), we need to provide a simple
private wrapper that implements the fall back to the default
g_object_class_install_property() call.

ClutterDragAction has been converted as a proof of concept.
2010-09-30 10:33:24 +01:00
Emmanuele Bassi
f090c3ea49 stage: Add more checks on the stage window retrieval
During destruction, the StageWindow implementation associated to a Stage
might be NULL. We need to add more checks for a) the IN_DESTRUCTION flag
being set and b) the StageWindow pointer being NULL. Otherwise, we will
get warnings during the destruction of the Stage.
2010-09-30 10:27:10 +01:00
Neil Roberts
a278a1f940 cogl-texture-2d-sliced: Don't create the slice textures twice
Both of the cogl_texture_2d_sliced_new functions called the
slices_create function which creates the underlying GL
textures. However this was also called by init_base so the textures
would end up being created twice. This would make it leak the GL
textures and the arrays which point to them.
2010-09-29 16:14:34 +01:00
Emmanuele Bassi
66b0c1969c Remove the internal copy of JSON-GLib
The internal copy of JSON-GLib was meant to go away right after the 1.0
release, given that JSON-GLib was still young and relatively unknown.

Nowadays, many projects started depending on this little library, and
distributions ship it and keep it up to date.

Keeping a copy of JSON-GLib means keeping it up to date; unfortunately,
this would also imply updating the code not just for the API but for the
internal implementations.

Starting with the 1.2 release, Clutter preferably dependend on the
system copy; with the 1.4 release we stopped falling back automatically.
The 1.6 cycle finally removes the internal copy and requires a copy of
JSON-GLib installed on the target system in order to compile Clutter.
2010-09-29 15:57:28 +01:00
Emmanuele Bassi
e36cc40a49 Merge branch 'wip/non-recursive'
* wip/non-recursive:
  build: Start moving to a non-recursive layout
2010-09-29 15:55:58 +01:00
Robert Bragg
42f6364cac actor: don't dirty pick buffer in _real_queue_redraw
Since re-working how redraws are queued it is no longer necessary to
dirty the pick buffer in _clutter_actor_real_queue_redraw since this
should now reliably be handled in _clutter_stage_queue_actor_redraw.
2010-09-29 15:13:01 +01:00
Robert Bragg
51fca9d968 actor: Adds private _clutter_actor_traverse API
This adds two internal functions relating to explicit traversal of the
scenegraph:
_clutter_actor_foreach_child
_clutter_actor_traverse

_clutter_actor_foreach_child just iterates the immediate children of an
actor, and with a new ClutterForeachCallback type it allows the
callbacks to break iteration early.

_clutter_actor_traverse traverses the given actor and all of its
decendants. Again traversal can be stopped early if a callback returns
FALSE.

The first intended use for _clutter_actor_traverse is to maintain a
cache pointer to the stage for all actors. In this case we will need to
update the pointer for all descendants of an actor when an actor is
reparented in any way.
2010-09-29 15:13:01 +01:00
Robert Bragg
9a1abbc713 actor: Adds private _clutter_actor_get_n_children
This adds a private getter to query the number of children an actor has.
One use planned for this API is to avoid calling get_paint_volume on
such actors. (It's not clear what the best semantics for
get_paint_volume are for actors with children, so we are considering
leaving the semantics undefined for the initial clutter 1.4 release)
2010-09-29 15:13:01 +01:00
Robert Bragg
239d83f952 actor: explicitly track children in clutter-actor.c
We now explicitly track the list of children each actor has in a private
GList. This gives us a reliable way to know how many children an actor
has - even for composite actors that don't implement the container
interface. This also will allow us to directly traverse the scenegraph
in a more generalized fashion. Previously the scenegraph was
more-or-less represented implicitly according the implementation of
paint methods.
2010-09-29 15:13:01 +01:00
Robert Bragg
b3edd3e922 debug: fix blue outlines for paint-volumes debug opt
When using the CLUTTER_PAINT=paint-volumes debug option we try and show
when a paint volume couldn't be determined by drawing a blue outline of
the allocation instead. There was a typo though and instead we were
drawing an outline the size of the stage instead of for the given actor.
This fixes that and removes a FIXME comment relating to the blue outline
that is now implemented.
2010-09-29 15:13:00 +01:00
Robert Bragg
1a8d577168 clone: Implement get_paint_volume virtual
To allow Clutter to queue clipped redraws when a clone actor changes we
need to be able to report a paint volume for clone actors. This patch
makes ClutterClones query the paint volume of their source actor and
masquerade it as their own volume.
2010-09-29 15:13:00 +01:00
Robert Bragg
f6ba69f82d Revert "actor: don't immediately queue redraw when queuing relayout"
This reverts commit ca44c6a7d8abe9f2c548bee817559ea8adaa7a80.

In reality there are probably lots of actors that depend on the exact
semantics as they are documented so this change isn't really acceptable.
For example when the font changes in ClutterText we only queue a
relayout, and since it's possible that the font will have the same size
and the actor won't get a new allocation it wouldn't otherwise queue a
redraw.

Since queue_redraw requests now get deferred until just before a paint
run it is actually no longer a problem to queue the redraw here.
2010-09-29 15:13:00 +01:00
Robert Bragg
3b789490d2 actor: defer queue-redraw signaling
Instead of immediately, recursively emitting the "queue-redraw" signal
when clutter_actor_queue_redraw is called we now defer this process
until all stage updates are complete. This allows us to aggregate
repeated _queue_redraw requests for the same actor avoiding redundant
paint volume transformations. By deferring we also increase the
likelihood that the actor will have a valid paint volume since it will
have an up to date allocation; this in turn means we will more often be
able to automatically queue clipped redraws which can have a big impact
on performance.

Here's an outline of the actor queue redraw mechanism:

The process starts in clutter_actor_queue_redraw or
_clutter_actor_queue_redraw_with_clip.

These functions queue an entry in a list associated with the stage which
is a list of actors that queued a redraw while updating the timelines,
performing layouting and processing other mainloop sources before the
next paint starts.

We aim to minimize the processing done at this point because there is a
good chance other events will happen while updating the scenegraph that
would invalidate any expensive work we might otherwise try to do here.
For example we don't try and resolve the screen space bounding box of an
actor at this stage so as to minimize how much of the screen redraw
because it's possible something else will happen which will force a full
redraw anyway.

When all updates are complete and we come to paint the stage (see
_clutter_stage_do_update) then we iterate this list and actually emit
the "queue-redraw" signals for each of the listed actors which will
bubble up to the stage for each actor and at that point we will
transform the actors paint volume into screen coordinates to determine
the clip region for what needs to be redrawn in the next paint.

Note: actors are allowed to queue a redraw in reseponse to a
queue-redraw signal so we repeat the processing of the list until it
remains empty. An example of when this happens is for Clone actors or
clutter_texture_new_from_actor actors which need to queue a redraw if
their source queues a redraw.
2010-09-29 15:13:00 +01:00
Robert Bragg
7d8effd5e2 paint_volume: add private api to change reference actor
For Clone actors we will need a way to report the volume of the source
actor as the volume of the clone actor. To make this work though we need
to be able to replace the reference to the source actor with a reference
to the clone actor instead. This adds a private
_clutter_paint_volume_set_reference_actor function to do that.
2010-09-29 15:13:00 +01:00
Robert Bragg
2d895816be paint_volume: Adds _clutter_paint_volume_set_from_volume
This adds a way to initialize a paint volume from another source paint
volume. This lets us for instance pass the contents of one paint volume
back through the out param of a get_paint_volume implementation.
2010-09-29 15:13:00 +01:00
Robert Bragg
bfacca3011 actor: don't queue_redraw actors not descended from stage
This makes clutter_actor_queue_redraw simply bail out early if the actor
isn't a descendant of a ClutterStage since the request isn't meaningful
and it avoids a crash when trying to queue a clipped redraw against the
stage to clear the actors old location.
2010-09-29 15:13:00 +01:00
Emmanuele Bassi
b77d9a6d2c paint-volume: Add convenience function for using an allocation
Classes overriding ClutterActor::get_paint_volume() that wish to use
their allocation as the paint volume should have an idiomatic way of
doing so.
2010-09-29 15:13:00 +01:00
Emmanuele Bassi
5640a65046 text: Update get_paint_volume() implementation
In commit 9818eee4646e49e99beb5a43f1dafcbdcca41f94 I forgot to update
ClutterText as well as the other actors.
2010-09-29 15:13:00 +01:00
Emmanuele Bassi
16f7ee13f2 Move default paint volume computation into a function
This should reduce the amount of copy and paste for actor sub-classes
that use the default paint volume from the allocation.
2010-09-29 15:13:00 +01:00
Robert Bragg
fd41024d29 paint_volume: assert non-NULL pv in _volume_copy
Instead of carefully checking if the user passes NULL to
clutter_paint_volume_copy we now simply use g_return_val_if_fail.
2010-09-29 15:13:00 +01:00
Robert Bragg
3040b140bc paint_volume: Splits out clutter_paint_volume code
This splits out all the clutter_paint_volume code from clutter-actor.c
into clutter-paint-volume.c. Since clutter-actor.c and
clutter-paint-volume.c both needed the functionality of
_fully_transform_vertices, this function has now been moved to
clutter-utils.c as _clutter_util_fully_transform_vertices.
2010-09-29 15:13:00 +01:00
Robert Bragg
72eeb8e809 actor: make default get_paint_volume more conservative
There are too many examples where the default assumption that an actor
paints inside its allocation isn't true, so we now return FALSE in the
base implementation instead. This means that by default we are saying
"we don't know the paint volume of the actor", so developers need to
implement the get_paint_volume virtual to take advantage of culling and
clipped redraws with their actors.

This patch provides very conservative get_paint_volume implementations
for ClutterTexture, ClutterCairoTexture, ClutterRectangle and
ClutterText which all explicitly check the actor's object type to avoid
making any assumptions about subclasses.
2010-09-29 15:12:59 +01:00
Robert Bragg
d9a7f1b03b actor: don't always check needs_allocation for clipped redraw
We were always explicitly checking priv->needs_allocation in
_clutter_actor_queue_redraw_with_clip, but we only need to do that if
the CLUTTER_REDRAW_CLIPPED_TO_ALLOCATION flag is used.
2010-09-29 15:12:59 +01:00
Robert Bragg
072595a1bf actor: new actors should start with an empty paint box
This initializes priv->last_paint_box with a degenerate box, so a newly
allocated actor added to the scenegraph and made visible only needs to
trigger a redraw of its initial position. If we don't have a valid
last_paint_box though we would instead trigger a full stage redraw.
2010-09-29 15:12:59 +01:00
Robert Bragg
c2ea35b5ca actor: when culling/clipped redraws disable ignore paint box
To make comparing the performance with culling/clipped redraws
enabled/disabled fairer we now avoid querying the paint box when they
are disabled, so that results should reflect how the cost of
transforming paint volumes into screen space etc gets offset against the
benefit of culling.
2010-09-29 15:12:59 +01:00
Robert Bragg
5d1600d603 stage: only update viewport when allocation changes
In clutter_stage_allocate at the end we were always querying the latest
allocation set and using the geometry to assert the viewport and then
kicking a full redraw. These only need to be done when the allocation
really changes, so we now read the previous allocation at the start of
the function and compare at the end. This was stopping clipped redraws
from being used in a lot of cases.
2010-09-29 15:12:59 +01:00
Robert Bragg
1e7f22db3b glx: queue full redraws for the first 2 frames
To consider that we've see a number of drivers that can struggle to get
going and may produce a bad first frame we now force the first 2 frames
to be full redraws. This became a serious issue after we started using
clipped redraws more aggressively because we assumed that after the
first frame the full framebuffer was valid and we only redraw the
content that changes. With buggy drivers though, applications would be
left with junk covering a lot of the stage until some event triggered a
full redraw.
2010-09-29 15:12:59 +01:00
Robert Bragg
771348b369 x11: minimize nasty artefacts when resizing windows
This is a workaround for a race condition when resizing windows while
there are in-flight glXCopySubBuffer blits happening.

The problem stems from the fact that rectangles for the blits are
described relative to the bottom left of the window and because we can't
guarantee control over the X window gravity used when resizing so the
gravity is typically NorthWest not SouthWest.

This means if you grow a window vertically the server will make sure to
place the old contents of the window at the top-left/north-west of your
new larger window, but that may happen asynchronous to GLX preparing to
do a blit specified relative to the bottom-left/south-west of the window
(based on the old smaller window geometry).

When the GLX issued blit finally happens relative to the new bottom of
your window, the destination will have shifted relative to the top-left
where all the pixels you care about are so it will result in a nasty
artefact making resizing look very ugly!

We can't currently fix this completely, in-part because the window
manager tends to trample any gravity we might set.  This workaround
instead simply disables blits for a while if we are notified of any
resizes happening so if the user is resizing a window via the window
manager then they may see an artefact for one frame but then we will
fallback to redrawing the full stage until the cooling off period is
over.
2010-09-29 15:12:59 +01:00
Robert Bragg
012e4ab153 x11: Queue clipped redraws for Expose events
Instead of triggering a full stage redraw for Expose events we use the
geometry of the exposed region given in the event to queue a clipped
redraw of the stage.
2010-09-29 15:12:59 +01:00
Robert Bragg
105451d1be cogl: removes unused _cogl_setup_viewport
Clutter has now taken responsibility for managing its viewport,
projection matrix and view transform as part of ClutterStage so
_cogl_setup_viewport is no longer used by anything, and since it's quite
an obscure API anyway it's we've taken the opportunity to remove the
function.
2010-09-29 15:12:59 +01:00
Robert Bragg
95ff71d01c stage: Sometimes really force a full redraw
Since clutter_actor_queue_redraw now automatically clips redraws
according to the paint volume of the actor we have to be careful to
ensure we really force a full redraw when the stage is allocated a new
size or the stage viewport changes.
2010-09-29 15:12:59 +01:00
Robert Bragg
2235e70585 actor: don't immediately queue redraw when queuing relayout
We have bent the originally documented semantics a bit so now where we
say "Queueing a new layout automatically queues a redraw as well" it
might be clearer to say "Queuing a new layout implicitly queues a redraw
as well if anything in the layout changes".

This should be close enough to the original semantics to not cause any
problems.

Without this change then we we fail to take advantage of clipped redraws
in a lot of cases because queuing a redraw with priv->needs_allocation
== TRUE will automatically be promoted to a full stage redraw since it's
not possible to determine a valid paint-volume.

Also queuing a redraw here will end up registering a redundant clipped
redraw for the current location, doing quite a lot of redundant
transforms, and then later when re-allocated during layouting another
queue redraw would happen with the correct paint-volume.
2010-09-29 15:12:58 +01:00