Commit Graph

3057 Commits

Author SHA1 Message Date
Robert Bragg
ef9ea9e237 [cogl-primitives] Split the journal out from cogl-primitives.c
The Journal can be considered a standalone component, so even though
it's currently only used to log quads, it seems better to split it
out into its own file.
2009-10-16 18:58:52 +01:00
Robert Bragg
8790306629 [test-backface-culling] Check that inverted tex coords don't affect culling
The additional check draws another front facing rectangle but this time with
the texture coords flipped on the x axis.  The code that handles sliced
textures in cogl-primitives.c makes some suspicious changes to the geometry
when the texture coords are inverted.
2009-10-16 18:58:52 +01:00
Robert Bragg
2f628b1a8a [cogl-spans] split out cogl-spans code from cogl-texture-2d-sliced
When we implement atlas textures we will probably want to use the spans API
to handle texture repeating so it doesn't make sense to leave the code in
cogl-texture-2d-sliced.c.  Since it's a standalone set of data structures
and algorithms it also seems reasonable to split out from cogl-texture.
2009-10-16 18:58:52 +01:00
Vladimir Nadvornik
568d684187 [cogl-texture] Split CoglTexture into an abstract class + CoglTexture2dSliced
cogl-texture-2d-sliced provides an implementation of CoglTexture and this
seperation lays the foundation for potentially supporting atlas textures,
pixmap textures (as in GLX_EXT_texture_from_pixmap) and fast-path
GL_TEXTURE_{1D,2D,3D,RECTANGLE} textures in a maintainable fashion.
2009-10-16 18:58:51 +01:00
Robert Bragg
9da26fc1ca [cogl-texture] Seal CoglTexture internals from cogl-primitives.c
cogl-primitives.c was previously digging right into CoglTextures so it could
manually iterate the texture slices for texturing quads and polygons and
because we were missing some state getters we were lazily just poking into
the structures directly.

This adds some extra state getter functions, and adds a higher level
_cogl_texture_foreach_slice () API that hopefully simplifies the way in
which sliced textures may be used to render primitives.  This lets you
specify a rectangle in "virtual" texture coords and it will call a given
callback for each slice that intersects that rectangle giving the virtual
coords of the current slice and corresponding "real" texture coordinates for
the underlying gl texture.

At the same time a noteable bug in how we previously iterated sliced
textures was fixed, whereby we weren't correctly handling inverted texture
coordinates.  E.g.  with the previous code if you supplied texture coords of
tx1=100,ty1=0,tx2=0,ty2=100 (inverted along y axis) that would result in a
back-facing quad, which could be discarded if using back-face culling.
2009-10-16 18:58:51 +01:00
Robert Bragg
52cecd50ec [docs] switch gl_handle+gl_target docs for cogl_texture_new_from_foreign
The descriptions for gl_handle and gl_target were inverted.

Thanks to Young-Ho Cha for spotting that.

Signed-off-by: Robert Bragg <robert@linux.intel.com>
2009-10-16 18:58:51 +01:00
Robert Bragg
95a869dab1 [cogl] move clutter/pango to clutter/cogl/pango
As part of the re-organisation of Cogl; move clutter/pango to be part of the
cogl sub-project.
2009-10-16 18:58:51 +01:00
Robert Bragg
43efab46bc Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys
As part of an incremental process to have Cogl be a standalone project we
want to re-consider how we organise the Cogl source code.

Currently this is the structure I'm aiming for:
cogl/
    cogl/
	<put common source here>
	winsys/
	   cogl-glx.c
	   cogl-wgl.c
	driver/
	    gl/
	    gles/
	os/ ?
    utils/
	cogl-fixed
	cogl-matrix-stack?
        cogl-journal?
        cogl-primitives?
    pango/

The new winsys component is a starting point for migrating window system
code (i.e.  x11,glx,wgl,osx,egl etc) from Clutter to Cogl.

The utils/ and pango/ directories aren't added by this commit, but they are
noted because I plan to add them soon.

Overview of the planned structure:

* The winsys/ API is the API that binds OpenGL to a specific window system,
  be that X11 or win32 etc.  Example are glx, wgl and egl. Much of the logic
  under clutter/{glx,osx,win32 etc} should migrate here.

* Note there is also the idea of a winsys-base that may represent a window
  system for which there are multiple winsys APIs.  An example of this is
  x11, since glx and egl may both be used with x11.  (currently only Clutter
  has the idea of a winsys-base)

* The driver/ represents a specific varient of OpenGL. Currently we have "gl"
  representing OpenGL 1.4-2.1 (mostly fixed function) and "gles" representing
  GLES 1.1 (fixed funciton) and 2.0 (fully shader based)

* Everything under cogl/ should fundamentally be supporting access to the
  GPU.  Essentially Cogl's most basic requirement is to provide a nice GPU
  Graphics API and drawing a line between this and the utility functionality
  we add to support Clutter should help keep this lean and maintainable.

* Code under utils/ as suggested builds on cogl/ adding more convenient
  APIs or mechanism to optimize special cases. Broadly speaking you can
  compare cogl/ to OpenGL and utils/ to GLU.

* clutter/pango will be moved to clutter/cogl/pango

How some of the internal configure.ac/pkg-config terminology has changed:
backendextra -> CLUTTER_WINSYS_BASE # e.g. "x11"
backendextralib -> CLUTTER_WINSYS_BASE_LIB # e.g. "x11/libclutter-x11.la"
clutterbackend -> {CLUTTER,COGL}_WINSYS # e.g. "glx"
CLUTTER_FLAVOUR -> {CLUTTER,COGL}_WINSYS
clutterbackendlib -> CLUTTER_WINSYS_LIB
CLUTTER_COGL -> COGL_DRIVER # e.g. "gl"

Note: The CLUTTER_FLAVOUR and CLUTTER_COGL defines are kept for apps

As the first thing to take advantage of the new winsys component in Cogl;
cogl_get_proc_address() has been moved from cogl/{gl,gles}/cogl.c into
cogl/common/cogl.c and this common implementation first trys
_cogl_winsys_get_proc_address() but if that fails then it falls back to
gmodule.
2009-10-16 18:58:50 +01:00
Robert Bragg
2eea83de75 Make the CoglContext structure a bit more maintainable
This moves most of cogl-context.{c.h} to cogl/common with some driver
specific members now living in a CoglContextDriver struct.  Driver specific
context initialization and typedefs now live in
cogl/{gl,gles}/cogl-context-driver.{c,h}

Driver specific members can be found under ctx->drv.stuff
2009-10-16 18:58:49 +01:00
Robert Bragg
157eb437ba Improve cogl-texture maintainability by moving 90% into cogl/common
This splits the limited components that differed between
cogl/{gl,gles}/cogl-texture.c into new {gl,gles}/cogl-texture-driver.c files
and the rest that can now be shared into cogl/common/cogl-texture.c
2009-10-16 18:58:49 +01:00
Robert Bragg
fe01ec6323 [stage-egl] support fallbacks in clutter_stage_egl_realize
Most of clutter_stage_egl_realize was renamed to
_clutter_stage_egl_try_realize which now takes a cookie indicating which
fallback number should tried next.  clutter_stage_egl_realize now keeps
trying to realize with successive fallback numbers until it succeeds or runs
out of fallbacks.

The only fallback supported for now is for hardware with no stencil buffer
support.
2009-10-16 18:58:49 +01:00
Robert Bragg
3187e19642 [x11 backend] remove data duplicated between backends and stages
Make backends the canonical point of reference for the xdisplay, the xscreen
number, the x root window and the xvisinfo for creating foreign stages.
2009-10-16 18:58:48 +01:00
Robert Bragg
63414ab233 [glx backend] white space fixes
Simply removes lots of trailing white spaces
2009-10-16 18:58:48 +01:00
Robert Bragg
45a668bef8 [glx backend] use FBConfigs instead of Visuals for GL context creation
This replaces calls to the old (glx 1.2) functions glXChooseVisual,
glXCreateContext, glXMakeCurrent with the 1.3+ fbconfig varients
glXChooseFBConfig, glXCreateNewContext, glXMakeContextCurrent.
2009-10-16 18:58:48 +01:00
Robert Bragg
15d7a86621 [backends] Remove the idea of offscreen stages from all backends
The only backend that tried to implement offscreen stages was the GLX backend
and even this has apparently be broken for some time without anyone noticing.

The property still remains and since the property already clearly states that
it may not work I don't expect anyone to notice.

This simplifies quite a bit of the GLX code which is very desireable from the
POV that we want to start migrating window system code down to Cogl and the
simpler the code is the more straight forward this work will be.

In the future when Cogl has a nicely designed API for framebuffer objects then
re-implementing offscreen stages cleanly for *all* backends should be quite
straightforward.
2009-10-16 18:58:47 +01:00
Robert Bragg
35f11d863c [build] more Makefile.am.{enums,marshal} fixes for out of tree builds
for the marshal files $(srcdir) was getting prefixed twice since my last
commit (2cc88f1140) since it was already being prefixed including
Makefile.am.  The problem with prefixing it in the includer file though is
that the Make variable substitutions like :.list=.h mean we end up
generating into the $(srcdir).  This removes the prefix added in
clutter/Makefile.am

We were also missing a $(srcdir) prefix when setting EXTRA_DIST
2009-10-16 18:46:44 +01:00
Emmanuele Bassi
f1acc91f37 Simple coding style fix for commit c5551184 2009-10-16 15:57:21 +01:00
Emmanuele Bassi
a9d2c0f690 Merge branch 'bug-1846'
* bug-1846:
  Fix warning message in the ParamSpec validation
2009-10-16 15:55:05 +01:00
Emmanuele Bassi
b5adbf89b8 Merge branch 'bug-1845'
* bug-1845:
  Add a warning when ClutterInterval can't compute progress
2009-10-16 15:55:04 +01:00
Damien Lespiau
70c8128457 Fix warning message in the ParamSpec validation
When validating a new GValue against the ClutterParamSpecUnits, we issue
a warning when the units do not match with both the new value and the
unit we expect to have. Unfortunately we were printing the unit of the
new value twice and not the unit of the ParamSpec.

http://bugzilla.openedhand.com/show_bug.cgi?id=1846
2009-10-16 15:54:24 +01:00
Damien Lespiau
c5551184b0 Add a warning when ClutterInterval can't compute progress
This is really useful when trying to animate GTypes that haven't
registered any progress function. Instead of silently not working it
will warn the developer.

http://bugzilla.openedhand.com/show_bug.cgi?id=1845
2009-10-16 15:53:46 +01:00
Damien Lespiau
ee9f8c3bdf Add ClutterInterval integration
To be able to animate CLUTTER_TYPE_UNITS properties we need to register
the GType and its progress function against the ClutterInterval code.

The two ClutterUnits defining the interval can use different units, the
resulting unit will always be in pixels, so calculating a progress
between 10px and 4cm is valid.

http://bugzilla.openedhand.com/show_bug.cgi?id=1844
2009-10-16 15:52:40 +01:00
Emmanuele Bassi
83b4ec7a12 units: Cache the pixels value inside Units
When computing the pixels value of a ClutterUnits value we should
be caching the value to avoid recomputing for every call of
clutter_units_to_pixels(). We already have a flag telling us to
return the cached value, but we miss the mechanism to evict the
cache whenever the Backend settings affecting the conversion, that
is default font and resolution, change.

In order to implement the eviction we can use a "serial"; the
Backend will have an internal serial field which we retrieve and
put inside the ClutterUnits structure (we split one of the two
64 bit padding fields into two 32 bit fields to maintain ABI); every
time we call clutter_units_to_pixels() we compare the units serial
with that of the Backend; if they match and pixels_set is set to
TRUE then we just return the stored pixels value. If the serials
do not match then we unset the pixels_set flag and recompute the
pixels value.

We can verify this by adding a simple test unit checking that
by changing the resolution of ClutterBackend we get different
pixel values for 1 em.

http://bugzilla.openedhand.com/show_bug.cgi?id=1843
2009-10-16 15:25:37 +01:00
Emmanuele Bassi
2ff31dfbaa text: Notify :position when it changes
The :position property is not notified when changed.

http://bugzilla.openedhand.com/show_bug.cgi?id=1830
2009-10-16 14:24:07 +01:00
Emmanuele Bassi
bc424fb56c [text] NULL-ify strings to avoid double-frees 2009-10-16 12:45:38 +01:00
Emmanuele Bassi
6f43f4b805 [text] Do not apply unset preedit attributes
The pre-edit attributes are optional and thus should only be applied
if they have been set to avoid assertion failures.
2009-10-16 12:45:38 +01:00
Emmanuele Bassi
2883728387 [text] Add pre-edit string to ClutterText
Input Methods require to be able to set a "pre-edit string", that is
a string that it's just displayed into the Text actor without being
committed to the actor's buffer. The string might require custom Pango
attributes, and an update of the cursor position.
2009-10-16 12:45:29 +01:00
Robert Bragg
2cc88f1140 [build] fix Makefile.am.{enums,marshal} to support out of tree builds
Out of tree builds were broken in commit 46b736f42e since we didn't
explicitly use $(srcdir) to find the input files for glib-mkenums and
glib-genmarshal.
2009-10-15 19:53:56 +01:00
Emmanuele Bassi
4f2bfc003a build: Clean up main Makefile.am 2009-10-14 09:07:11 +01:00
Emmanuele Bassi
46b736f42e build: Move marshallers and enum types rules out
The rules to create signal marshallers and enumeration GTypes are
usually copied and pasted all over different projects, though they
are pretty generic and, given a little bit of parametrization, can
be put in separate Makefile.am files and included whenever needed.
2009-10-14 09:07:11 +01:00
Emmanuele Bassi
0e33c10048 docs: Allow XInclude fallback for the annotation glossary 2009-10-14 09:07:11 +01:00
Emmanuele Bassi
a99f693c85 docs: Make StageManager a public class
The StageManager API is useful to track the stages of an application.
It will also be useful when we land the modules API.
2009-10-14 09:07:11 +01:00
Emmanuele Bassi
c3d056533c stage/manager: Set :default-stage as read-only
The StageManager:default-stage property should be read-only, since
the default stage is owned by Clutter itself.
2009-10-14 09:07:11 +01:00
Emmanuele Bassi
74eaa29413 stage/manager: Deprecate set_default_stage()
The set_default_stage() method of StageManager should not be used
by application code; technically, nothing in Clutter uses it, and
StageManager's API is not considered public anyway.
2009-10-14 09:07:11 +01:00
Damien Lespiau
a7ff5385a5 [actor] Unset the IN_DESTRUCTION flag when leaving ::destroy()
The IN_DESTRUCTION flag is set around the unrealization and disposal of
the actor in clutter_actor_destroy() but is never unset (it's set twice
instead).

Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
2009-10-12 17:40:46 +01:00
Emmanuele Bassi
3bbc96e17e text: Make the :text property not set the :use-markup one
Currently, setting the :text property has the side-effect of
setting the :use-markup property to FALSE. This prevents
constructing a Text actor, or setting its properties, like:

  g_object_set (text,
                "use-markup", TRUE,
                "text", some_string,
                NULL);

as the ordering becomes important. Unfortunately, the ordering
of the properties cannot be enforced with ClutterScript or
with language bindings.

The documentation of the clutter_text_set_text() method should
be expanded to properly specify that the set_text() method will
change the :use-markup property to FALSE as a side effect.
2009-10-07 21:55:54 +01:00
Emmanuele Bassi
1f207c00d9 docs: Add the "clipping" section to the COGL API reference
All the clip-related API in COGL is missing from the API reference
because the cogl-clipping section is not included inside the main
index file.
2009-10-07 17:41:54 +01:00
Damien Lespiau
80b3a8d328 [units] Ensure we don't have ponies
The documentation states we should not parse ponies. Even with those
with exclamation marks.

Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
2009-10-07 17:10:51 +01:00
Damien Lespiau
19c6879960 [path] Add GValue transform functions from and to G_TYPE_STRING
Transform functions allow the use of g_value_transform() to cast
GValues. It's very handy to have casts to and from G_TYPE_STRING as it
allows generic serialization and parsing of GTypes.

Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
2009-10-07 16:06:26 +01:00
Damien Lespiau
8605073edb [units] Add support for centimeters
The only tricky part of the patch is to remember that 1cm is 10mm.

Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
2009-10-07 16:06:26 +01:00
Damien Lespiau
96859959bd [units] Be more strict in the grammar we are parsing
Current parsing of units has a number of shortcomings:
  * a number followed by trailing space (without any unit specified) was
    not recognized,
  * "5 emeralds" was parsed as 5em,
  * the way we parse the digits after the separator makes us lose
    precision for no good reason (5.0 is parsed as 5.00010014...f which
    makes g_assert_cmpfloat() fail)

Let's define a stricter grammar we can recognize and try to do so. The
description is in EBNF form, removing the optional <> which is a pain
when having to write DocBook, and using '' for the terminal symbols.

Last step, add more ClutterUnits unit test to get a better coverage of
the grammar we want to parse.

Reviewed-by: Emmanuele Bassi <ebassi@linux.intel.com>
2009-10-07 16:06:26 +01:00
Emmanuele Bassi
4d481e03f3 color: Measure the string just once when parsing
Instead of measuring the color hexadecimal string for each case, just
measure it once and then use a switch() to go to the right case.
2009-10-07 13:00:57 +01:00
Thomas Wood
c7d50083ec [color] allow alpha to be omitted when converting to color from string
Parse #rgb and #rrggbb in addition to forms with the alpha channel
specified. This allows conversion of colour strings from documents such as
CSS where the alpha channel is not specified when using '#' notation.

This patch also adds the relevant conformance test.
2009-10-07 12:56:01 +01:00
Neil Roberts
13ac1fe75b [clutter-id-pool] Also warn if the ID refers to a deleted actor
We should also warn if the glReadPixels happens to generate an ID that
is within the range of the ID array but no longer points to an
existing actor.
2009-10-07 12:53:19 +01:00
Neil Roberts
a4ff4d37a4 [clutter-id-pool] Fix the check for out-of-range IDs
If id == the length of the array then it is also invalid and could
cause a crash.
2009-10-07 12:53:19 +01:00
Thomas Wood
142f886518 Revert "[color] allow alpha to omitted when converting from strings"
This reverts commit eb8daac4b0.

The original commit was incorrect and pushed accidentally.
2009-10-07 12:15:26 +01:00
Thomas Wood
bdf7499207 [color] add a note to the documentation to specify the values of the alpha
The alpha channel is fully opaque at 255 and fully transparent at 0.
2009-10-07 11:40:41 +01:00
Thomas Wood
eb8daac4b0 [color] allow alpha to omitted when converting from strings
Parse #rgb and #rrggbb in addition to forms with the alpha channel
specified. This allows conversion of colour strings from documents such as
CSS where the alpha channel is not specified when using '#' notation.
2009-10-07 11:38:08 +01:00
Damien Lespiau
9e03d92316 [path] MOVE_TO and LINE_TO only use a pair of coordinates
The documentation of ClutterPathNode had a small typo and stated that
they use 2 pairs of coordinates.
2009-10-06 10:43:41 +01:00
Robert Bragg
dd8e4dcd62 [debug] Guard the use of gdk_pixbuf for pick debugging by #ifdef USE_GDKPIXBUF
gdk is an optional clutter dependency, so the pick buffer debugging option
needs some guards so we don't break, for example, the OSX builds.  This also
adds a comment for the bit fiddling done on the pick colors used to ensure
the pick colors are more distinguished while debugging.  (we swap the
nibbles of each color component so that pick buffers don't just look black.)
2009-10-05 17:35:46 +01:00