Commit Graph

4095 Commits

Author SHA1 Message Date
Neil Roberts
77a486caf2 cogl-context: Don't enable point sprites on GLES2
On GLES2 there's no builtin mechanism to replace texture coordinates
with point sprite coordinates so calling glEnable(GL_POINT_SPRITE)
isn't valid. Instead the point sprite coords are implemented by using
a special builtin varying variable in GLSL.
2011-01-13 14:26:03 +00:00
Robert Bragg
88a085fdd8 pipeline: differentiate texture target and data state
There are several places where we need to compare the texture state of a
pipeline and sometimes we need to take into consideration if the
underlying texture has changed but other times we may only care to know
if the texture target has changed.

For example the fragends typically generate programs that they want to
share with all pipelines with equivalent fragment processing state, and
in this case when comparing pipelines we only care about the texture
targets since changes to the underlying texture won't affect the
programs generated.

Prior to this we had tried to handle this by passing around some special
flags to various functions that evaluate pipeline state to say when we
do/don't care about the texture data, but this wasn't working in all
cases and was more awkward to manage than the new approach.

Now we simply have two state bits:
COGL_PIPELINE_LAYER_STATE_TEXTURE_TARGET and
COGL_PIPELINE_LAYER_STATE_TEXTURE_DATA and CoglPipelineLayer has an
additional target member. Since all the appropriate code takes masks of
these state bits to determine what to evaluate we don't need any extra
magic flags.
2011-01-13 12:23:33 +00:00
Robert Bragg
8ab68d26a5 pipeline: optimize state init if changing property
When notifying that a pipeline property is going to change, then at
times a pipeline will take over being the authority of the corresponding
state group. Some state groups can contain multiple properties and so to
maintain the integrity of all of the properties we have to initialize
all the property values in the new authority. For state groups with only
one property we don't have to initialize anything during the
pre_change_notify() because we can assume the value will be initialized
as part of the change being notified.

This patch optimizes how we handle this initialization of state groups
in a couple of ways; firstly we no longer do anything to initialize
state-groups with only one property, secondly we no longer use
_cogl_pipeline_copy_differences - (we have a new
_cogl_pipeline_init_multi_property_sparse_state() func) so we can avoid
lots calls to handle_automatic_blend_enable() which is sometimes seen
high in sysprof profiles.
2011-01-13 12:23:33 +00:00
Neil Roberts
3c9f72abbf cogl-atlas-texture: Don't disable atlas if can't read texture data
Previously atlasing would be disabled if the GL driver does not
support reading back texture data. This meant that atlasing would not
happen on GLES. However we also require that the driver support FBOs
and the texture data is only read back as a fallback if the FBO
fails. Therefore the atlas should be ok on GLES 2 which has FBO
support in core.
2011-01-13 11:50:09 +00:00
Robert Bragg
676df42c6f pipeline: don't skip flush if skip_gl_color flag differs
We try and bail out of flushing pipeline state asap if we can see the
pipeline has already been flushed and hasn't changed but we weren't
checking to see if the skip_gl_color flag is the same as when it was
last flush too and so we'd sometimes bail out without updating the
glColor correctly.
2011-01-11 14:30:02 +00:00
Neil Roberts
38e527a3cf cogl-vertex-attribute: Optionally avoid applying the legacy state
When an item is added to the journal the current pipeline immediately
gets the legacy state applied to it and the modified pipeline is
logged instead of the original. However the actual drawing from the
journal is done using the vertex attribute API which was also applying
the legacy state. This meant that the legacy state used would be a
combination of the state set when the journal entry was added as well
as the state set when the journal is flushed. To fix this there is now
an extra CoglDrawFlag to avoid applying the legacy state when setting
up the GL state for the vertex attributes. The journal uses this flag
when flushing.
2011-01-11 14:06:09 +00:00
Bastian Winkler
f4fc7284eb script-parser: Also honor properties of type GType
The script parser should also handle GType properties.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2513
2011-01-11 12:37:53 +00:00
Damien Lespiau
f2080f099e shader: Don't notify properties when finalizing shaders
clutter_shader_finalize() was calling clutter_shader_release() which in
turn notifies "compiled". GObject was complaining that we were trying to
_ref() an object that was in _finalize().

 #0  g_log (log_domain=0x3e15c4 "GLib-GObject", log_level=G_LOG_LEVEL_CRITICAL,
     format=0x76c938 "%s: assertion `%s' failed") at gmessages.h:97
 #1  0x0070777d in g_return_if_fail_warning (
     log_domain=0x3e15c4 "GLib-GObject",
     pretty_function=0x3e37a4 "g_object_ref",
     expression=0x3e2a00 "object->ref_count > 0") at gmessages.c:586
 #2  0x003b862b in g_object_ref (_object=0x8567af0) at gobject.c:2615
 #3  0x003bd238 in g_object_notify_by_pspec (object=0x8567af0, pspec=0x87ea2f0)
     at gobject.c:1075
 #4  0x00b6500b in clutter_shader_release (shader=0x8567af0)
     at ./clutter-shader.c:612
 #5  0x00b659b9 in clutter_shader_finalize (object=0x8567af0)
     at ./clutter-shader.c:107

Then, let's split release in two, with an _internal() version that does
not notify "compiled" and use it from dispose (as the object is still
usable after a call to release_internal().

http://bugzilla.clutter-project.org/show_bug.cgi?id=2512
2011-01-11 11:20:16 +00:00
Tomeu Vizoso
3625adb9d8 ClutterListModel: Implement get_n_rows for improved performance
The default implementation in ClutterModel iterates through all
the elements.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2511
2011-01-10 21:22:22 +00:00
Adel Gadllah
850f956d4e ClutterAlignConstraint: Keep pixel aligment
We have to round the values here otherwise we might end up with
misaligned actors.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2508
2011-01-10 18:45:22 +00:00
Neil Roberts
d648de7d14 cogl-journal: Avoid enabling blending if possible
The vertex attribute API assumes that if there is a color array
enabled then we can't determine if the colors are opaque so we have to
enable blending. The journal always uses a color array to avoid
switching color state between rectangles. Since the journal switched
to using vertex attributes this means we effectively always enable
blending from the journal. To fix this there is now a new flag for
_cogl_draw_vertex_attributes to specify that the color array is known
to only contain opaque colors which causes the draw function not to
copy the pipeline. If the pipeline has blending disabled then the
journal passes this flag.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2481
2011-01-10 17:11:42 +00:00
Neil Roberts
159cd6ddc0 cogl-vertex-attribute: Add flags to _cogl_draw_vertex_attributes_array
There is an internal version of cogl_draw_vertex_attributes_array
which previously just bypassed the framebuffer flushing, journal
flushing and pipeline validation so that it could be used to draw the
journal. This patch generalises the function so that it takes a set of
flags to specify which parts to flush. The public version of the
function now just calls the internal version with the flags set to
0. The '_real' version of the function has now been merged into the
internal version of the function because it was only called in one
place. This simplifies the code somewhat. The common code which
flushed the various state has been moved to a separate function. The
indexed versions of the functions have had a similar treatment.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2481
2011-01-10 17:11:41 +00:00
Neil Roberts
0201e5fa97 cogl: Don't assume that CoglBitmaps are allocated to height*rowstride
Cogl no longer has any code that assumes the buffer in a CoglBitmap is
allocated to the full size of height*rowstride. We should comment that
this is the case so that we remember to keep it that way. This is
important for cogl_texture_new_from_data because the application may
have created the data from a sub-region of a larger image and in that
case it's not safe to read the full rowstride of the last row when the
sub region contains the last row of the larger image.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2491
2011-01-10 16:55:01 +00:00
Neil Roberts
e1cbef23f5 cogl-texture-driver-gles: Don't copy the bitmap if alignment matches
When uploading data for GLES we need to deal with cases where the
rowstride is too large to be described only by GL_UNPACK_ALIGNMENT
because there is no GL_UNPACK_ROW_LENGTH. Previously for the
sub-region uploading code it would always copy the bitmap and for the
code to upload the whole image it would copy the bitmap unless the
rowstride == bpp*width. Neither paths took into account that we don't
need to copy if the rowstride is just an alignment of bpp*width. This
moves the bitmap copying code to a separate function that is used by
both upload methods. It only copies the bitmap if the rowstride is not
just an alignment of bpp*width.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2491
2011-01-10 16:55:00 +00:00
Neil Roberts
b3058c097d cogl-util: Add an internal wrapper for the ffs function
The ffs function is defined in C99 so if we want to use it in Cogl we
need to provide a fallback for MSVC. This adds a configure check for
the function and then a fallback using a while loop if it is not
available.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2491
2011-01-10 16:55:00 +00:00
Neil Roberts
91c1602306 cogl-texture: Don't use the source rowstride if we have to copy bitmap
If we have to copy the bitmap to do the premultiplication then we were
previously using the rowstride of the source image as the rowstride
for the new image. This is wasteful if the source image is a subregion
of a larger image which would make it use a large rowstride. If we
have to copy the data anyway we might as well compact it to the
smallest rowstride. This also prevents the copy from reading past the
end of the last row of pixels.

An internal function called _cogl_bitmap_copy has been added to do the
copy. It creates a new bitmap with the smallest possible rowstride
rounded up the nearest multiple of 4 bytes. There may be other places
in Cogl that are currently assuming we can read height*rowstride of
the source buffer so they may want to take advantage of this function
too.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2491
2011-01-10 16:54:58 +00:00
Neil Roberts
c6fbc8c567 cogl-vertex-attribute: Fix the name of the cogl_normal_in attribute
The builtin vertex attribute for the normals was incorrectly checked
for as 'cogl_normal' however it is defined as cogl_normal_in in the
shader boilerplate and for the name generated by CoglVertexBuffer.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2499
2011-01-10 14:29:25 +00:00
Emmanuele Bassi
2c36b81996 container: Do not use Actor as prerequisite
The prerequisite for ClutterContainer in 1.x is GObject, and we cannot
restrict the prerequisites without an ABI break.
2011-01-10 14:03:35 +00:00
nobled
6bb81a542f egl: Fix build for --with-flavour=opengl-egl-xlib
Make sure the EGL backend doesn't forget to include desktop OpenGL headers.
2011-01-06 17:16:51 +00:00
nobled
530bc2aa70 egl: Don't use obsolete API
Fixes a GCC "implicit declaration of function" warning when compiling.
2011-01-06 16:40:58 +00:00
Kristian Høgsberg
8c23766da8 x11: Create the list of all devices correctly
Linked lists are tricky.
2011-01-06 14:28:41 +00:00
Emmanuele Bassi
2fe20ff3c5 osx: Implement the set_accept_focus() vfunc
Like the x11 and win32 backends, the quartz backend should allow setting
the key focus when showing the stage window.
2010-12-30 12:47:00 +00:00
Emmanuele Bassi
9d6a33d0c8 win32: Implement the set_accept_focus() vfunc
Implement the ClutterStageWindow::set_accept_focus() virtual function in
the win32 backend.

If accept_focus is set to be TRUE then we call SetforegroundWindow()
after calling ShowWindow(). This is similar to what GDK does when
dealing with the same situation.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2500
2010-12-30 12:47:00 +00:00
Emmanuele Bassi
497f39e2f4 x11: Implement the set_accept_focus() vfunc
Actually set the InputHint flag and set the input field of the WM_SPEC
hints depending on the value of the accept-focus bitfield.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2500
2010-12-30 12:47:00 +00:00
Emmanuele Bassi
bbede9fef5 stage: Add :accept-focus property and accessors
Allow the developer to set whether the Stage should receive key focus
when mapped. The implementation is fully backend-dependent. The default
value is TRUE because that's what we've been expecting so far.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2500
2010-12-30 12:44:13 +00:00
Emmanuele Bassi
e1cd6f49b2 stage-window: Add set_accept_focus() vfunc
Allow Stage implementations to set whether or not they want to accept
key focus when being shown.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2500
2010-12-30 12:44:13 +00:00
Johan Bilien
601b958ab1 Fixed a crash when destroying the actor of a LEAVE event
When processing a LEAVE event, one might destroy the actor, so the weak
reference device->actor would be NULL.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2502

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-12-30 12:27:26 +00:00
Johan Bilien
c95cc8d477 Only reset the relayout_pending flag when actually doing a relayout
If an actor is (unfortunately) queuing a relayout in relayout, you would
end up with (ClutterActor*)stage->needs_allocation set to TRUE and
stage->relayout_pending set to TRUE. But if then in the same cycle, an
actor calls clutter_actor_get_allocation_box, that will trigger another
(recursive) _clutter_stage_maybe_relayout, which will wrongly reset the
relayout pending to FALSE, while not actually performing a new relayout
because of the re-entrancy protection.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2503
2010-12-30 11:48:51 +00:00
Emmanuele Bassi
b6558c5a18 docs: Fixes for the Cogl API reference 2010-12-22 09:52:35 +00:00
Emmanuele Bassi
605e8d6fb5 text: Only paint cursor if we have key focus
If a Text actor does not have key focus then there's no point in showing
the cursor at all.
2010-12-21 10:50:24 +00:00
Emmanuele Bassi
491bbc226e constraints: Remove signal handlers on dispose
Same as commit 2fa8b3a3ab but done for
AlignConstraint and SnapConstraint as well.
2010-12-18 13:24:54 +00:00
Emmanuele Bassi
2fa8b3a3ab bind-constraint: Remove handlers in dispose
We should remove the signal handlers on the source actor when a
BindConstraint is disposed, to avoid dangling pointers and wrong
invocations.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2493
2010-12-18 13:16:23 +00:00
Emmanuele Bassi
6c244c0549 geometry: Avoid sign issues when interpolating
Width and height in ClutterGeometry are unsigned, and this might lead to
overflow and wrap around issues.
2010-12-17 13:53:28 +00:00
Alexandre Quessy
c3313726f0 Fixed a typo in a doc string
http://bugzilla.clutter-project.org/show_bug.cgi?id=2485
2010-12-17 13:37:05 +00:00
Emmanuele Bassi
c444447cd3 timeline: Rename the reverse property to auto-reverse
Other frameworks expose the same functionality as "auto-reverse",
probably to match the cassette tape player. It actually makes sense
for Clutter to follow suit.
2010-12-17 12:07:52 +00:00
Neil Roberts
faaff03730 clutter-stage: Don't always set the projection and viewport matrix
The stage has a dirty flag to record whenever the viewport and
projection matrices need to be flushed. However after flushing these
the flags were never cleared so it would always redundantly update the
state.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2480
2010-12-14 13:12:29 +00:00
Neil Roberts
f595433942 cogl-pipeline-fragend-arbfp: Generate ARBfp if user vertex shader
The ARBfp fragend was bypassing generating a shader if the pipeline
contains a user program. However it shouldn't do this if the pipeline
only contains a vertex shader. This was breaking
test-cogl-just-vertex-shader.
2010-12-14 13:12:28 +00:00
Emmanuele Bassi
52442414d9 cally: Allow memory management for actions
Adding an action should allow passing a user data pointer, and have a
notification action that gets called when removing the action. This
allows introspection and language bindings to attach custom data to the
action - for instance, the real callable object that should be invoked.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2479
2010-12-14 10:07:32 +00:00
Mike Owens
def14e80cb ClutterText: Only grab keyboard focus if keyboard-interactive.
Previously, ClutterText took keyboard focus on mouse-down, regardless
if it were editable or selectable.  Now it checks these properties,
and behaves like other actors if it can't do anything useful with
the focus.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2462
2010-12-14 09:36:28 +00:00
Neil Roberts
7b985f034f Allow multiple CoglAtlases for textures
Previously Cogl would only ever use one atlas for textures and if it
reached the maximum texture size then all other new textures would get
their own GL texture. This patch makes it so that we create as many
atlases as needed. This should avoid breaking up some batches and it
will be particularly good if we switch to always using multi-texturing
with a default shader that selects between multiple atlases using a
vertex attribute.

Whenever a new atlas is created it is stored in a GSList on the
context. A weak weference is taken on the atlas using
cogl_object_set_user_data so that it can be removed from the list when
the atlas is destroyed. The atlas textures themselves take a reference
to the atlas and this is the only thing that keeps the atlas
alive. This means that once the atlas becomes empty it will
automatically be destroyed.

All of the COGL_NOTEs pertaining to atlases are now prefixed with the
atlas pointer to make it clearer which atlas is changing.
2010-12-13 18:59:41 +00:00
Neil Roberts
d01a707623 cogl-atlas: Convert to be a CoglObject subclass
To implement multiple atlases it will be useful to have ref-counting
on the CoglAtlas so it makes sense to convert it to be a CoglObject.
2010-12-13 18:59:41 +00:00
Neil Roberts
d1ddca4eee cogl-shader-boilerplate: Add the 3D texture extension on GLES2
To use the 3D texture extension on GLES2 it has to be enabled with the
following line in GLSL:

#extension GL_OES_texture_3D : enable
2010-12-13 17:29:14 +00:00
Neil Roberts
bdeb555ae1 cogl2-path: Don't flush the enable flags
All of the drawing needed in _cogl_add_path_to_stencil_buffer is done
with the vertex attribute API so there should be no need to flush the
enable flags to enable the vertex array. This was causing problems on
GLES2 where the vertex array isn't available.
2010-12-13 17:29:14 +00:00
Neil Roberts
7dc4b3c894 Remove the GLES2 wrapper
The GLES2 wrapper is no longer needed because the shader generation is
done within the GLSL fragend and vertend and any functions that are
different for GLES2 are now guarded by #ifdefs.
2010-12-13 17:29:14 +00:00
Neil Roberts
1999bee5d2 cogl-pipeline: Use enums for the layer combine values
Once the GLES2 wrapper is removed then we won't have the GLenums
needed for setting up the layer combine state. This adds Cogl enums
instead which have the same values as the corresponding GLenums. The
enums are:

CoglPipelineCombineFunc
CoglPipelineCombineSource
 and
CoglPipelineCombineOp
2010-12-13 17:29:14 +00:00
Neil Roberts
271acaaae5 cogl: upload matrices with uniforms on GLES2
Once the GLES2 wrapper is removed we won't be able to upload the
matrices with the fixed function API any more. The fixed function API
gives a global state for setting the matrix but if a custom shader
uniform is used for the matrices then the state is per
program. _cogl_matrix_stack_flush_to_gl is called in a few places and
it is assumed the current pipeline doesn't need to be flushed before
it is called. To allow these semantics to continue to work, on GLES2
the matrix flush now just stores a reference to the matrix stack in
the CoglContext. A pre_paint virtual is added to the progend which is
called whenever a pipeline is flushed, even if the same pipeline was
flushed already. This gives the GLSL progend a chance to upload the
matrices to the uniforms. The combined modelview/projection matrix is
only calculated if it is used. The generated programs end up never
using the modelview or projection matrix so it usually only has to
upload the combined matrix. When a matrix stack is flushed a reference
is taked to it by the pipeline progend and the age is stored so that
if the same state is used with the same program again then we don't
need to reupload the uniform.
2010-12-13 17:29:13 +00:00
Neil Roberts
67847260bc cogl-matrix-stack: Add _cogl_matrix_stack_has_identity_flag
This adds an internal function to quickly determine whether the top of
the matrix stack is known to be the identity matrix.
2010-12-13 17:28:52 +00:00
Neil Roberts
016005591d cogl-matrix-stack: Convert to be a CoglObject
We will want to use ref-counting on the CoglMatrixStack so it might as
well be a CoglObject.
2010-12-13 17:28:29 +00:00
Robert Bragg
58a2261387 matrix-stack: Make header style consistent
Cogl doesn't follow the Clutter/GTK+ columnized function prototype style
so this updates cogl-matrix-stack.h to match the other Cogl headers.
2010-12-13 17:28:29 +00:00
Robert Bragg
4976d22940 matrix-stack: Adds a stack age counter
Sometimes it would be useful if we could efficiently track when a matrix
stack has been modified. For example on GLES2 we have to upload the
modelview as a uniform to our glsl programs but because the modelview
state is part of the framebuffer state it becomes a bit more tricky to
know when to re-sync the value of the uniform with the framebuffer
state. This adds an "age" counter to CoglMatrixStack which is
incremented for any operation that effectively modifies the top of the
stack so now we can save the age of the stack inside the pipeline
whenever we update modelview uniform and later compare that with the
stack to determine if it has changed.
2010-12-13 17:28:29 +00:00