Commit Graph

3482 Commits

Author SHA1 Message Date
Emmanuele Bassi
a3c69dc27c cally: Add introspection generation
Toolkits and applications not written in C might still need access to
the Cally API to write accessibility extensions based on it for their
own native elements.
2010-07-07 15:57:43 +01:00
Emmanuele Bassi
608a5a8ae6 x11: Clean up NET_WM_STATE modifiers
Use a separate function to avoid code duplication.
2010-07-07 14:52:19 +01:00
Emmanuele Bassi
eca398f113 x11: Do not swallow XSettings events
We might want pieces higher in the stack (like Mx) to handle XSettings
events as well, and swallowing them by removing them from the events
queue would make it impossible.
2010-07-07 14:52:19 +01:00
Alejandro Piñeiro
a2f8ce175f cally: Improving cally doc
* Add documentation for all undocumented symbols
  * Add an overview section
2010-07-07 15:48:08 +02:00
Alejandro Piñeiro
c931e11e3d cally: Cleaning CallyText
* Removing superfluous g_return_if_fail
  * Removing unused ClutterText::text-changed callback
2010-07-07 15:48:00 +02:00
Alejandro Piñeiro
137790bec9 cally: Refactoring "window:create" and "window:destroy" emission code
Previously "window:create" and "window:destroy" were emitted on
CallyUtil. Although it works, and CallyUtil already have callbacks to
stage_added/removed signals, I think that it is more tidy/clear to do
that on CallyRoot:

  * CallyRoot already has code to manage ClutterStage addition/removal

  * In fact, we can see CallyRoot as the object exposing the a11y
    information from ClutterStageManager, so it fits better here.

  * CallyUtil callbacks these signals are related to key event
    listeners (key snooper simulation). One of the main CallyUtil
    responsabilities is managing event (connecting, emitting), so I
    would prefer to not start to add/mix more functionalities here.

Ideally it would be better to emit all CallyStage methods from
CallyStage, but it is clear that "create" and "destroy" are more easy
to emit from a external object
2010-07-07 15:47:56 +02:00
Alejandro Piñeiro
ffd1f12560 cally: Use proper backend information on CallyActor
It uses HAVE_CLUTTER_GLX to check the current backend in use for
some accessibility related methods.

Fixes CB#2071
2010-07-07 15:47:45 +02:00
Alejandro Piñeiro
d45499f88b cally: Check HAVE_CONFIG_H on cally-util.c 2010-07-07 15:46:34 +02:00
Robert Bragg
1dd174add3 framebuffer: Replace CoglHandle with CoglFramebuffer *
One more object converted to stop using CoglHandle re:a8c8cbee513
2010-07-07 14:41:54 +01:00
Robert Bragg
9b9e764dc1 material: route fogging state through CoglMaterial
Previously cogl_set_fog would cause a flush of the Cogl journal and
would directly bang the GL state machine to setup fogging. As part of
the ongoing effort to track most state in CoglMaterial to support
renderlists this now adds an indirection so that cogl_set_fog now just
updates ctx->legacy_fog_state. The fogging state then gets enabled as a
legacy override similar to how the old depth testing API is handled.
2010-07-07 14:12:15 +01:00
Robert Bragg
279e68d8d9 osx: explicitly request depth and stencil buffer bits
This is a blind patch because I don't know enough about the osx backend
and the osx backend probably doesn't even work these days anyway but
since people have filed bugs specifically on OSX that imply they don't
have a depth or stencil buffer this tries to fix that.

Maybe someone will eventually pick up the osx backend again and verify
if this helps.

http://bugzilla.clutter-project.org/show_bug.cgi?id=1394
2010-07-07 14:09:32 +01:00
Robert Bragg
2e0d2cf055 cogl-buffer: Move malloc fallback logic into CoglBuffer
Since we'll want to share the fallback logic with CoglVertexArray this
moves the malloc based fallback (for when OpenGL doesn't support vertex
or pixel buffer objects) into cogl-buffer.c.
2010-07-07 14:08:11 +01:00
Robert Bragg
2353aa56ea cogl-buffer: consider it an error to free a mapped buffer
Explicitly warn if we detect that a CoglBuffer is being freed while it
is still mapped. Previously we silently unmapped the buffer, but it's
not something we want to encourage.
2010-07-07 14:08:11 +01:00
Robert Bragg
429d7cf696 cogl-buffer: Track the last used bind target in CoglBuffer
This makes CoglBuffer track the last used bind target as a private
property. This is later used when binding a buffer to map instead of
always using the PIXEL_UNPACK target.

This also adds some additional sanity checks that code doesn't try to
nest binds to the same target or bind a buffer to multiple targets at
the same time.
2010-07-07 14:08:11 +01:00
Robert Bragg
3570852b02 cogl: expose the semantic differences of gl/gles2 npot textures
This adds three new feature flags COGL_FEATURE_TEXTURE_NPOT_BASIC,
COGL_FEATURE_TEXTURE_NPOT_MIPMAP and COGL_FEATURE_TEXTURE_NPOT_REPEAT
that can tell you if your hardware supports non power of two textures,
npot textures + mipmaps and npot textures + wrap modes other than
CLAMP_TO_EDGE.

The pre-existing COGL_FEATURE_TEXTURE_NPOT feature implies all of the
above.

By default GLES 2 core supports npot textures but mipmaps and repeat
modes can only be used with power of two textures. This patch also makes
GLES check for the GL_OES_texture_npot extension to determine if mipmaps
and repeating are supported with npot textures.
2010-07-07 13:26:41 +01:00
Neil Roberts
ced7915ea1 cogl-vertex-buffer: Fix the #define for glDisableVertexAttribArray
glDisableVertexAttribArray was defined to glEnableVertexAttribArray so
it would probably cause crashes if it was ever used. Presumably
nothing is using these yet because the generic attributes are not yet
tied to shader attributes in a predictable way.
2010-07-06 16:08:44 +01:00
Øyvind Kolås
290038ee68 animator: fix removal of multiple keys
When removing keys, sometimes a couple of keys would be remaining.
2010-07-06 14:14:34 +01:00
Øyvind Kolås
ec05230b97 state: added clutter_state_key_get_property_type
A function to retrieve the type of the value stored in a key, the
equivalent already exists for ClutterAnimator.
2010-07-06 14:14:34 +01:00
Øyvind Kolås
6d1f697bc4 state: automatically remove unused states
When there is no further keys with a state as the target state, remove
the state (and all transitions that used this state as a target)
2010-07-06 14:14:34 +01:00
Alexandros Frantzis
140f76abf4 build: Exclude built sources from the dist
http://bugzilla.clutter-project.org/show_bug.cgi?id=2169

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-07-06 13:24:00 +01:00
Robert Bragg
739240095f debug: Adds a COGL_DEBUG=disable-pbos debug option
For testing purposes, either to identify bugs in Cogl or the driver or
simulate lack of PBO support COGL_DEBUG=disable-pbos can be used to
fallback to malloc instead.
2010-07-06 12:09:01 +01:00
Robert Bragg
b4b98358e1 pango-render: set CLAMP_TO_EDGE wrap mode on glyph_material
The pango renderer was causing lots of override materials to be allocated
because the vertex_buffer API converts AUTOMATIC mode into REPEAT for
backwards compatibility. By explicitly setting the wrap mode to
CLAMP_TO_EDGE when creating the glyph_material then the vertex_buffer
API will leave it untouched.
2010-07-06 12:07:29 +01:00
Robert Bragg
82ba7220af pixel-array: Allow passing of hints to cogl_buffer_map
This allows you to tell Cogl that you are planning to replace all the
buffer's data once it is mapped with cogl_buffer_map. This means if the
buffer is currently being accessed by the GPU then the driver doesn't
have to stall and wait for it to finish before it can access it from the
CPU and can instead potentially allocate a new buffer with undefined
data and map that.
2010-07-06 12:07:28 +01:00
Emmanuele Bassi
a63eb10855 docs: Fix Cally documentation 2010-07-05 16:45:43 +01:00
Emmanuele Bassi
09c6553f0d cally: Clean up the headers
Make Cally follow the single-include header file policy of Clutter and
Cogl; this means making cally.h the single include header, and requires
a new cally-main.h file for the functions defined by cally.h.

Also:

  • clean up the licensing notice and remove the FSF address;

  • document the object structures (instance and class);

  • G_GNUC_CONST-ify the get_type() functions;

  • reduce the padding for CallyActor sub-classes;

  • reduce the amount of headers included.
2010-07-05 16:45:43 +01:00
Alejandro Piñeiro
8f8e88b692 Initialize accessibility support on clutter_init
Initialize the accessibility support calling cally_accessibility_init

Take into account that this is required to at least be sure that
CallyUtil class is available.

It also modifies cally_accessibility_module_init in order to return
if the initialization was fine (and the name, removing the module word).

It also removes the gnome accessibility hooks, as it is not anymore
module code.

Solves CB#2098
2010-07-05 16:45:43 +01:00
Alejandro Piñeiro
774541d71e Rename some methods and includes to avoid -Wshadow warnings
http://bugzilla.clutter-project.org/show_bug.cgi?id=2097
2010-07-05 16:45:43 +01:00
Alejandro Piñeiro
72da871c0a Cally initialization code
This commit includes a method to init the a11y support. Two main purposes:

 * Register the different Atk factories.
 * Ensure that there are a AtkUtil implementation class available.

Part of CB#2097
2010-07-05 16:45:43 +01:00
Alejandro Piñeiro
c0f753d108 Add Cally
The Clutter Accessibility Library is an implementation of the ATK,
the Accessibility Toolkit, which exposes Clutter actors to accessibility
tools. This allows not only writing accessible user interfaces, but also
allows testing and verification frameworks based on A11Y technologies to
inspect and test a Clutter scene graph.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2097

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-07-05 16:45:43 +01:00
Robert Bragg
3e03ba1e7e cogl-object: cogl_is_XYZ prototype should take void *
This changes the cogl_is_XYZ function prototypes generated when using
the COGL_OBJECT_DEFINE macro to take a void * argument instead of a
CoglHandle argument.
2010-07-05 15:47:02 +01:00
Robert Bragg
8a5aed36fe pixel-array: Only allow allocation of arrays with a 2D size
This removes cogl_pixel_array_new which just took a size in bytes.

Without the image size and pixel format then the driver often doesn't
have enough information to allocate optimal GPU memory that can be
textured from directly. This is because GPUs often have ways to
spatially alter the layout of a texture to improve cache access patterns
which may require special alignment and padding dependant in the images
width, height and bpp.

Although currently we are limited by OpenGL because it doesn't let us
pass on the width and height when allocating a PBO, the hope is that we
can define a better extension at some point.
2010-07-05 15:20:04 +01:00
Robert Bragg
cfef390d87 pixel-array: rename new_from_size to new_with_size
It is more in keeping with other coding conventions in Cogl to use new
"with" size instead of new "from" size.
2010-07-05 15:20:04 +01:00
Robert Bragg
8ae0478850 cogl-buffer-private.h: cleanup up the coding style
This file was following the Clutter coding style of arranging prototypes
into columns which Cogl doesn't copy.
2010-07-05 15:20:04 +01:00
Robert Bragg
54f4a3a752 rename CoglPixelBuffer to CoglPixelArray
This renames CoglPixelBuffer to CoglPixelArray to be consistent with the
new CoglVertexArray API.
2010-07-05 15:20:04 +01:00
Robert Bragg
57341dbb60 cogl-buffer: make the COGL_BUFFER_USAGE_HINT private
The usage hint should be implied by the CoglBuffer subclass type so the
public getter and setter APIs for manually changing the usage hint of a
CoglBuffer have now been removed.
2010-07-05 15:20:04 +01:00
Robert Bragg
7820842262 cogl-buffer: Handle subclass registration like cogl-texture
Instead of having to extend cogl_is_buffer with new buffer types
manually this now adds a new COGL_BUFFER_DEFINE macro to be used instead
of COGL_OBJECT_DEFINE for CoglBuffer subclasses. This macro will
automatically register the new type with ctx->buffer_types which will
iterated by cogl_is_buffer. This is the same coding pattern used for
CoglTexture.
2010-07-05 15:20:03 +01:00
Robert Bragg
90931e261f pixel-buffer: Replace CoglHandle with CoglPixelBuffer *
One more file converted to stop using CoglHandle re:a8c8cbee513
2010-07-05 15:20:03 +01:00
Robert Bragg
baacf2e707 cogl-material: Adds debug api to dump sparse material graph
This adds a _cogl_debug_dump_materials_dot_file function that can be
used to dump all the descendants of the default material to a file using
the dot format which can then be converted to an image to visualize.
2010-07-05 15:04:46 +01:00
Robert Bragg
f3b75541c7 cogl-vertex-buffer.h: #include <cogl/cogl-defines.h>
cogl-vertex-buffer.h was assuming that the platforms GL headers had
already been included but that shouldn't have to be the case.
2010-07-05 14:54:21 +01:00
Robert Bragg
ed23207083 cogl-object-private.h: #include glib.h and cogl-types.h
cogl-object-private.h was only working in places that had already
included glib.h and cogl-types.h
2010-07-05 14:51:28 +01:00
Robert Bragg
cf8e88768f material: don't keep extra ref on copy-on-write materials
In _cogl_material_pre_change_notify if a material with descendants is
modified then we create a new material that is a copy of the one being
modified and reparent those descendants to the new material.

This patch ensures we drop the reference we get from cogl_material_copy
since we can rely on the descendants to keep the new material alive.
2010-07-05 14:51:05 +01:00
Robert Bragg
70925a3194 build: Fix GLES builds since the material backend split
The commit to split the fragment processing backends out from
cogl-material.c (3e1323a636) broke the GLES 1 and 2 builds the
fix was to guard the code in each backend according to the
COGL_MATERIAL_BACKEND_XYZ defines which are setup in
cogl-material-private.h.
2010-07-05 14:50:47 +01:00
Øyvind Kolås
38941372bf state: rename property "target-state" to "state"
This reduces the amount of typing, and should provide for more readable
code for most uses of ClutterState.
2010-07-02 17:41:33 +01:00
Neil Roberts
25509e6a7b Convert the ASCII art documentation in cogl-vertex-buffer to PNGs
The documentation for cogl_vertex_buffer_indices_get_for_quads was
using ugly ASCII art to draw the diagrams. These have now been
replaced with PNG figures.
2010-07-02 17:29:34 +01:00
Neil Roberts
86500cd3d5 Add CoglMaterialWrapMode to the Cogl docs and fix docs for the getters
CoglMaterialWrapMode was missing from the cogl-sections.txt file so it
wasn't getting displayed. There were also no documented return values
from the getters.
2010-07-02 17:29:34 +01:00
Emmanuele Bassi
9338df438c align-constraint: Offset the position after the alignment factor
Instead of aligning (pos + size), align on size alone, and then offset
by pos.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2168
2010-07-02 11:38:22 +01:00
Neil Roberts
884df17536 Fix building the tesselator code for GLES
The tesselator code uses some defines that it expects to be in the GL
headers such as GLAPI and GLAPIENTRY. These are used to mark the entry
points as exportable on each platform. We don't really want the
tesselator code to use these but we also don't want to modify the C
files so instead they are #defined to be empty in the stub glu.h. That
header is only included internally when building the tesselator/ files
so it shouldn't affect the rest of Cogl.

GLES also doesn't have a GLdouble type so we just #define this to be a
regular double.
2010-07-01 20:39:57 +01:00
Neil Roberts
b74c722670 cogl-material: Don't doubly ref the parent in cogl_material_copy
cogl_material_copy was taking a reference on the original texture when
making a copy. However it then calls _cogl_material_set_parent on the
material which also takes a reference on the parent. The second
reference is cleaned up whenever _cogl_material_unparent is called and
this is also called by _cogl_material_free. However, it seems that
nothing was cleaning up the first reference. I think the reference is
entirely unnecessary so this patch removes it.
2010-07-01 15:32:08 +01:00
Emmanuele Bassi
daf19205e0 align-constraint: Follow the position of the source
The AlignConstraint update is using only the width/height of the source,
but it should also take into account the position.

Also, instead of using the ::notify signal, it should follow the
BindConstraint, and switch to the ::allocation-changed signal, since
it's less expensive (one emission instead of four notifications, one for
each property we use).
2010-07-01 14:11:58 +01:00
Robert Bragg
b625d94362 cogl: don't include cogl-vector.h twice in cogl.h
cogl-vector.h should only be included by cogl.h when
COGL_ENABLE_EXPERIMENTAL_API is defined. This removes the unguarded
duplicate include.
2010-07-01 12:23:10 +01:00
Robert Bragg
534472a0d4 cogl: declare experimental symbols consistently
We had several different ways of exposing experimental API, in one case
the symbols had no special suffix, in two other ways the symbols were
given an _EXP suffix but in different ways.

This makes all experimental API have an _EXP suffix which is handled
using #defines in the header so the prototypes in the .c and .h files
don't have the suffix.

The documented reason for the suffix is so that anyone watching Cogl for
ABI changes who sees symbols disappear will hopefully understand what's
going on.
2010-06-30 18:51:31 +01:00
Neil Roberts
698743d454 cogl/tesselator: Update to the latest code from GLU
This grabs the latest code for libtess from git Mesa. This is mostly
so that we can get the following commit which fixes a lot of compiler
warnings in Clutter:

commit 75acb896c6da758d03e86f8725d6ca0cb2c6ad82
Author: Neil Roberts <neil@linux.intel.com>
Date:   Wed Jun 30 12:41:11 2010 +0100

    glu: Fix some compiler warnings in libtess
    
    When compiled with the more aggressive compiler warnings such as
    -Wshadow and -Wempty-body the libtess code gives a lot more
    warnings. This fixes the following issues:
    
    * The 'Swap' macro tries to combine multiple statements into one and
      then consume the trailing semicolon by using if(1){/*...*/}else.
      This gives warnings because the else part ends up with an empty
      statement. It also seems a bit dangerous because if the semicolon
      were missed then it would still be valid syntax but it would just
      ignore the following statement. This patch replaces it with the more
      common idiom do { /*...*/ } while(0).
    
    * 'free' was being used as a local variable name but this shadows the
      global function. This has been renamed to 'free_handle'
    
    * TRUE and FALSE were being unconditionally defined. Although this
      isn't currently a problem it seems better to guard them with #ifndef
      because it's quite common for them to be defined in other headers.
    
    https://bugs.freedesktop.org/show_bug.cgi?id=28845
2010-06-30 16:35:33 +01:00
Emmanuele Bassi
4ed4e86e75 docs: Various fixes for gtk-doc 2010-06-30 15:51:12 +01:00
Emmanuele Bassi
005a99f346 backend: Move one-off free in finalize()
Instead of using dispose().
2010-06-30 15:51:12 +01:00
Emmanuele Bassi
7ca340fade docs: Avoid warnings from the g-ir-scanner
The scanner has some issues when parsing valid gtk-doc annotations; we
should make its (and, in return, ours) life easier.

We still get warnings for code declared in <programlisting> sections,
unfortunately.
2010-06-30 15:51:12 +01:00
Robert Bragg
e32c6c1235 material: Replace CoglHandle with CoglMaterial *
As part of the ongoing effort to remove CoglHandle from the API this
switches the cogl_material API to use a strongly typed CoglMaterial
pointer instead of CoglHandle.
2010-06-30 15:04:18 +01:00
Robert Bragg
3e1323a636 material: Split the fragment processing backends out
This splits the fragment processing backends (glsl, arbfp and fixed) out
from cogl-material.c into their own cogl-material-{glsl,arbfp,fixed}.c
files in an effort to help and keep cogl-material.c maintainable.
2010-06-30 15:04:10 +01:00
Robert Bragg
411438f309 material: remove a duplicate gtk-doc "Since: 1.4"
The cogl_material_get_depth_writing_enabled documentation had two
"Since: 1.4" annotations which was confusing the gobject introspection
scanner.
2010-06-30 14:31:46 +01:00
Robert Bragg
f4e825b81d backend: fix double free of priv->font_name
If the backend was disposed then priv->font_name would be freed but not
set to NULL and so if clutter_backend_get_font_name was then called it
would double free priv->font_name.
2010-06-30 14:30:35 +01:00
Emmanuele Bassi
286f307c10 docs: Various fixes 2010-06-30 11:32:15 +01:00
Neil Roberts
3a1456f34e cogl-path: Allow changing the fill rule
This adds two new API calls- cogl_path_set_fill_rule and
cogl_path_get_fill_rule. This allows modifying the fill rule of the
current path. In addition to the previous default fill rule of
'even-odd' it now supports the 'non-zero' rule. The fill rule is a
property of the path (not the Cogl context) so creating a new path or
preserving a path with cogl_path_get_handle affects the fill rule.
2010-06-29 20:37:14 +01:00
Neil Roberts
95317b9623 cogl-debug: Remove the force-scanline-paths option
The scanline path rasterizer has been removed because the paths can be
drawn with the tesselator instead. The option therefore no longer does
anything.
2010-06-29 20:37:13 +01:00
Neil Roberts
0cdbe7e098 cogl-path: Use the GLU tesselator to draw paths
Instead of drawing paths using the stencil buffer trick, it now
tesselates the path into triangles using the GLU tesselator and
renders them directly. A vbo is created with one vertex for each node
on the path. The tesselator is used to generate a series of indices
into the vbo as triangles. The tesselator's output of strips and fans
is converted into GL_TRIANGLES so that it can be rendered with a
single draw call (but the vertices are still shared via the
indices). The vbo is stored with the path so that if the application
uses retained paths then Cogl won't have to tessellate again.

The vertices also have texture coordinates associated with them so
that it can replicate the old behaviour of drawing a material with a
texture by fitting the texture to the bounding box of the path and
then clipping it. However if the texture contains waste or is sliced
then the vertex buffer code will refuse to draw it. In this case it
will revert back to drawing the path into the stencil buffer and then
drawing the material as a clipped quad.

The VBO is used even when setting up the stencil buffer for clipping
to a path because the tessellated geometry may cover less area.

The old scanline rasterizer has been removed because the tesselator
should work equally well on drivers with no stencil buffer.
2010-06-29 20:37:13 +01:00
Neil Roberts
fae4d60106 cogl: Pull in the code for GLU tesselator from Mesa/SGI
This copies the files for the GLU tesselator from Mesa. The Mesa code
is based on the original SGI code and is released under a BSD license.

The memalloc.h header has been replaced with one that forces the code
to use g_malloc and friends. The rest of the files are not altered
from the original so it should be possible to later upgrade the files
by simply overwriting them.

There is a tesselator.h header which is expected to be included by
rest of Cogl to use the tesselator. This contains a trimmed down
version of glu.h that only includes parts that pertain to the
tesselator. There is also a stub glu.h in the GL directory which is
just provided so that the tesselator code can include <GL/gl.h>
without depending on the system header. It just redirects to
tesselator.h
2010-06-29 20:37:13 +01:00
Chris Lord
8801c947d5 event: Typos in event code could cause crashes
A typo in clutter-event.c meant that the wrong struct location could be
used for the input device of key events. Also, a typo in the X11 event
code meant that key-presses would come from the pointer device (releases
would still come from the keyboard device).
2010-06-29 15:42:59 +01:00
Emmanuele Bassi
32ad63efef bind-constraint: Add width and height binding
Allow using the BindConstraint to bind width and height of a source
actor.

Also, add a test for the BindConstraint showing all types of usages
for this constraint class.
2010-06-28 18:06:23 +01:00
Neil Roberts
b3ffe602a2 cogl: Add const to some pointer arguments
Some of the arguments to the material and path functions were taking a
pointer to a CoglColor or an array of floats that was not intended to
be written to but were not marked with const.
2010-06-28 15:25:19 +01:00
Emmanuele Bassi
a20def9df6 text: Use the ::settings-changed signal
Instead of the ::font-changed one.
2010-06-28 10:43:13 +01:00
Emmanuele Bassi
c81ef75942 x11: Add XSETTINGS watcher
If we want to be able to get live notification of system settings
changes, we need watch the window that the XSETTINGS client conjures
up for us.
2010-06-28 10:32:54 +01:00
Emmanuele Bassi
31fc8e9664 text: Document and annotate :font-name for NULL values
Update the documentation of :font-name, to make it clear that by setting
it to NULL the Text actor will use the default font.

Also, set the annotation for the @font_name argument of the setter to be
allow-none, and allow passing NULL through bindings.
2010-06-26 23:05:36 +01:00
Emmanuele Bassi
809211588d text: Update actors using the default font
If a ClutterText actor is using the default font from the backend then
we should track font name changes and update it accordingly. This only
applies to ClutterText actors with the :font-name property unset or
explicitly set to NULL.
2010-06-26 15:49:15 +01:00
Emmanuele Bassi
26fb096095 settings: Emit Backend::font-changed
When the :font-name property changes, to maintain the invariant.
2010-06-26 13:51:06 +01:00
Emmanuele Bassi
2e4e321dad Detail the font-name value in the font settings debug note 2010-06-25 11:44:53 +01:00
Neil Roberts
527ad961ab clutter-event-win32: Emit multiple events for WM_MOUSEWHEEL Messages
It's possible that a single WM_MOUSEWHEEL event can arrive with a
scroll amount greater than WHEEL_DELTA. Previously it would accumulate
these amounts but it would still only emit a single event per
message. For example, if a message arrived that is worth two
WHEEL_DELTAs then it would emit one event and leave scroll_pos as
+WHEEL_DELTA. If the wheel is then scrolled in the opposite direction
then wheel delta would end up as zero and the scroll event would get
lost.

This patch fixes it so that it always emits enough events to put
scroll_pos back to less than WHEEL_DELTA.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2135
2010-06-25 11:29:07 +01:00
Neil Roberts
2c8d73f047 clutter-event-win32: Directly enqueue events in message_translate
Previously the window procedure for the stage window would always
create a ClutterEvent struct for every message and then pass that on
to message_translate to fill in the details. message_translate could
return FALSE to abandon the event. Instead of this, message_translate
now creates and queues the event itself whenever it sees a message
that could translate to an event. The function now returns void. This
has a number of advantages:

* It saves redundantly allocating events for messages that Clutter
  doesn't care about.

* A single message can now easily be translated into multiple events.

* There were some messages that were handled and did not fill in the
  event struct but did not cause the function to return FALSE. I think
  this would end up with a CLUTTER_NOTHING event being emitted.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2135
2010-06-25 11:29:07 +01:00
Øyvind Kolås
b4607f7a37 state: avoid g_str_equal if a string might be NULL 2010-06-25 02:06:31 +01:00
Emmanuele Bassi
a950388bc6 actor: Top-levels should always report a 255 opacity
The paint opacity should always assume a fully opaque top-level at the
end, otherwise the scene would be rendered fully transparent.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2050
2010-06-24 17:26:01 +01:00
Emmanuele Bassi
42df1a150b actor: Ignore the NOP paint at 0 opacity for top-levels
A top-level actor could still have 0 opacity (e.g. a Stage with the
:use-alpha property set to TRUE), but we want its children to still
be painted.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2050
2010-06-24 17:26:01 +01:00
Robert Bragg
1b15397120 material: Avoid possibly reading invalid memory
in _cogl_material_prune_empty_layer_difference we sometimes unref the
given layer before dereferencing it to get a pointer to its parent. This
defers the unref until after we have fetched the parent pointer.
2010-06-24 17:05:26 +01:00
Øyvind Kolås
1ad7eb969c state: added more documentation 2010-06-24 16:52:48 +01:00
Øyvind Kolås
2a29cd2aee state: removed special handling of state named "default"
The "default" state used for unspecified source transitions is NULL.
Small update and some other fixes to documentation.
2010-06-24 15:49:01 +01:00
Alejandro Piñeiro
d37dee8258 Improve clutter_text_get_chars doc
Explicitly explain that end_pos is not included with the resulting
string

http://bugzilla.clutter-project.org/show_bug.cgi?id=2081
2010-06-24 14:25:11 +01:00
Elliot Smith
213cd30ceb docs: Fix example code in BindingPool
The code sample in the gtk-doc annotations for ClutterBindingPool shows
the arguments in the wrong order.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2133

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-06-24 11:23:50 +01:00
Neil Roberts
d17ea2c021 cogl: Remove cogl-defines.h.in from the driver make files
Commit 7fae8ac051 changed cogl-defines.h.in so there is only a
single copy in clutter/cogl/ instead of one for each driver. However
the old files were still mentioned in the EXTRA_DIST of the
Makefile.am so make distcheck was failing.
2010-06-23 17:44:09 +01:00
Chris Lord
97e39228c5 cogl-path: Disable texture coord arrays before drawing
It was possible that the texture co-ord arrays were left enabled during
stroking, which could possibly cause a crash.
2010-06-23 16:07:00 +01:00
Neil Roberts
8512423f22 clutter-animation: Fix for using fixed:: from clutter_actor_animatev
When using clutter_actor_animatev it would set a boolean whenever a
property begins with "fixed::". However it would never clear the
variable so it would end up marking all subsequent properties as
fixed.

http://bugzilla.openedhand.com/show_bug.cgi?id=2180

http://bugzilla.clutter-project.org/show_bug.cgi?id=2149
2010-06-23 15:55:46 +01:00
Robert Bragg
f423d794cc texture-pixmap-x11: don't assume anything about the GLXFBConfig type
A pedantic change to get_fbconfig_for_depth() so that we don't need to
make any assumptions about the GLXFBConfig typedef or what values
we can overload to indicate an invalid config.

get_fbconfig_for_depth() now simply returns FALSE if it fails to find a
config.
2010-06-22 16:53:59 +01:00
Emmanuele Bassi
62c08b4a09 drag-action: Disable picking during drag
While dragging we don't need to perform picking to determine the actor
underneath the pointer, for two reasons:

  • we use a capture on the stage to determine the motion delta.
  • we know the actor underneath the pointer because that's the
    actor we are dragging around.

This change should make dragging actors in complex scenes a bit faster.
2010-06-22 16:12:53 +01:00
Emmanuele Bassi
d89270d7c1 Silence another compiler warning 2010-06-22 14:43:36 +01:00
Neil Roberts
db47e90829 cogl-texture-pixmap-x11: Use NULL instead of None for invalid GLXFBConfig
GLXFBConfigs are opaque pointers not XIDs so it doesn't make sense to
return None from get_fbconfig_for_depth. Instead it now returns NULL.
2010-06-22 14:19:59 +01:00
Emmanuele Bassi
b2c87eaddf Silence some compiler warnings 2010-06-22 13:48:53 +01:00
Emmanuele Bassi
3734408962 Use -Bsymbolic-functions
The -Bsymbolic-functions linker flag allows to avoid intra-library
PLT jumps on ELF platforms. It is similar to the aliasing hack in
GLib and GTK+, but definitely less messy.

The configure script should look for the flags, in order to support
platforms/linkers that do not have it.
2010-06-22 13:32:11 +01:00
Neil Roberts
5d860a9978 clutter-{glx,x11}-texture-pixmap: Use CoglTexturePixmapX11
The pixmap handling of both of the texture pixmap actors in Clutter is
now removed and instead it just creates a CoglTexturePixmapX11. Both
actors are now equivalent so there is no need to choose between the
two.
2010-06-22 12:22:48 +01:00
Neil Roberts
a197baa533 Add a CoglTexturePixmapX11 texture backend
This is a publicly exposed texture backend to create a texture which
contains the contents of an X11 pixmap. The API is currently marked as
experimental.

The backend internally holds a handle to another texture. All of the
backend virtuals simply redirect to the internal texture.

The texture can optionally be automatically updated if the
automatic_updates parameter is TRUE. If set then Cogl will listen for
damage events on the pixmap and update the texture accordingly.
Alternatively a damage object can be created externally and passed
down to Cogl.

The updates can be performed with XGetImage, XShmGetImage or the
GLX_EXT_texture_pixmap extension. If the TFP extension is used it will
optionally try to create a rectangle texture if the driver does not
support NPOTs or it is forced through the
COGL_PIXMAP_TEXTURE_RECTANGLE or CLUTTER_PIXMAP_TEXTURE_RECTANGLE
environment variables.

If the GLXFBConfig does not support mipmapping then it will fallback
to using X{Shm,}GetImage. It keeps a separate texture around for this
so that it can later start using the TFP texture again if the texture
is later drawn with mipmaps disabled.
2010-06-22 12:22:48 +01:00
Neil Roberts
6ca13e54d8 Add -DCOGL_ENABLE_EXPERIMENTAL_API to Makefiles for Cogl and x11/glx
Cogl and Clutter should be able to use the experimental API so this
adds the required define to the CPPFLAGS in the Makefiles.
2010-06-22 12:22:47 +01:00
Neil Roberts
7fae8ac051 cogl-defines.h: Add a COGL_HAS_X11 define
This will be defined in cogl-defines.h whenever Cogl is built using a
winsys that supports X11. This implies CoglTexturePixmapX11 will be
available.

To make this work the two separate cogl-defines.h.in files have been
merged into one. The configure script now makes a @COGL_DEFINES@
substitution variable which contains the #define lines to put in
rather than directly having them in the seperate files.
2010-06-22 12:22:47 +01:00
Neil Roberts
a01b094630 cogl: Add _cogl_xlib_{,un}trap_errors
This is similar to clutter_x11_{,un}trap_errors except that it stores
the previous trap state in a caller-allocated struct so that it can be
re-entrant.

Make _cogl_xlib_trap_errors re-entrant

(this will be squashed into an earlier commit)
2010-06-22 12:22:47 +01:00
Neil Roberts
3abe26b913 cogl-texture: Avoid premult conversion if the dst format has no alpha
The _cogl_texture_needs_premult_conversion function was already
checking whether the source format had an alpha channel before
returning TRUE, but it also doesn't make sense to do the premult
conversion if the destination format has no alpha. This patch adds
that check in too.
2010-06-22 12:22:47 +01:00
Neil Roberts
279ad7b7e5 cogl: Add the infrastructure for checking for winsys extensions
This adds the framework needed to check for winsys specific extensions
(such as GLX extensions) using a similar mechanism to the
cogl-feature-functions header. There is a separate
cogl-winsys-feature-functions header which will contain macros to list
the extensions and functions. cogl_create_context_winsys now calls
_cogl_feature_check for each of these functions. _cogl_feature_check
has had to be changed to accept the driver prefix as the first
parameter so that it can prepend "GLX" rather than "GL" in this case.
2010-06-22 12:22:43 +01:00
Neil Roberts
9cdcc155f3 Pass all Xlib events through Cogl
The Clutter X11 backend now passes all events through
_cogl_xlib_handle_event. This function can now internally be hooked
with _cogl_xlib_add_filter. These are added to a list of callbacks
which are all called in turn by _cogl_xlib_handle_event. This is
intended to be used internally in Cogl by any parts that need to see
Xlib events.

Cogl now also has an internally exposed function to set a pointer to
the Xlib display. This is stored in a global variable. The Clutter X11
backend sets this.

_cogl_xlib_handle_event and _cogl_xlib_set_display can be removed once
Cogl gains a proper window system abstraction.
2010-06-22 12:20:59 +01:00
Neil Roberts
811bbba075 cogl: Add a struct for winsys-specific data to CoglContext
This creates a separate struct to store the fields of the context that
are specific to the winsys. This is all stored in one file but ideally
this could work more like the CoglContextDriver struct and have a
different header for each winsys.
2010-06-22 11:47:33 +01:00
Neil Roberts
3a3d55cd88 cogl: Add an internal CoglTextureRectangle backend
This adds an internal rectangle texture backend which is mostly based
on the CoglTexture2D backend. It will throw assert failures if any
operations are attempted that rectangle textures don't support, such
as mipmapping or hardware repeating.
2010-06-22 11:47:33 +01:00
Neil Roberts
fd3a3e93bf cogl-texture: Replace the ensure_mipmaps virtual with pre_paint
Instead of the ensure_mipmaps virtual that is only called whenever the
texture is about to be rendered with a min filter that needs the
mipmap, there is now a pre_paint virtual that is always called when
the texture is about to be painted in any way. It has a flags
parameter which is used to specify whether the mipmap will be needed.

This is useful for CoglTexturePixmapX11 because it needs to do stuff
before painting that is unrelated to mipmapping.
2010-06-22 11:47:33 +01:00
Neil Roberts
87240cd764 cogl-texture: List texture subclass types rather than hardcoding them
Instead of having a hardcoded series of if-statements in
cogl_is_texture to determine which types should appear as texture
subclasses, they are now stored in a GSList attached to the Cogl
context. The list is amended to using a new cogl_texture_register_type
function. There is a convenience macro called COGL_TEXTURE_DEFINE
which uses COGL_HANDLE_DEFINE_WITH_CODE to register the texture type
when the _get_type() function is first called.
2010-06-22 11:47:33 +01:00
Neil Roberts
5ea8c5bd12 Add COGL_{OBJECT,HANDLE}_DEFINE_WITH_CODE
This macro is similar to COGL_HANDLE_DEFINE_WITH_CODE except that it
allows a snippet of code to be inserted into the _get_type()
function. This is similar to how G_DEFINE_TYPE_WITH_CODE
works. COGL_HANDLE_DEFINE is now just a wrapper around
COGL_HANDLE_DEFINE_WITH_CODE.
2010-06-22 11:47:33 +01:00
Neil Roberts
97225a96a6 Add _cogl_texture_2d_externally_modified
_cogl_texture_2d_externally_modified is a function specific to the
CoglTexture2D texture backend that should be called whenever the
contents of the texture are modified without the backend knowing about
it. It simply marks the mipmap tree as invalid.
2010-06-22 11:47:32 +01:00
Neil Roberts
7e149c5ca9 cogl: Fix the include path in driver/*/Makefile.am
The include path for the winsys and driver folder was given relative
to $(srcdir) so it would end up relative to the driver folder which is
wrong. It is now specified as $(srcdir)/../../winsys to get the right
location. The driver folder is removed because it is actually just
$(srcdir) and that is already included.
2010-06-22 11:47:32 +01:00
Robert Bragg
60cad4bf0b gles2: don't disable clip planes for GLES2
GLES2 doesn't provide user clip planes (you would have to use a vertex +
fragment shader to achieve the same kind of result) so we make sure not
to call glEnable/Disable with any of the GL_CLIP_PLANE0..3 defines.

http://bugzilla.o-hand.com/show_bug.cgi?id=2177
2010-06-22 11:35:22 +01:00
Robert Bragg
00bb189e71 material: fix a typo in _cogl_material_journal_unref
The function had a line like:

CoglMaterial *material =
    material = _cogl_material_pointer_from_handle (material_handle);

where the duplicate "material =" wasn't intended, so this patch removes
it.
2010-06-22 11:21:09 +01:00
Emmanuele Bassi
8a9890e138 json: Backport JSON_NODE_HOLDS macros
Unbreak the compilation with the internal copy of json-glib.
2010-06-22 07:58:49 +01:00
Emmanuele Bassi
1eb7f57582 x11: Use the _clutter symbols for xsettings_* API
Instead of using the bare xsettings_* API; this maintains consistency.
2010-06-21 18:56:16 +01:00
Emmanuele Bassi
f3adc600fc backend: Undeprecated clutter_backend_get_resolution()
Since the Settings:font-dpi property is exposed as 1024 * real_dpi in
order to make the setting as neutral as possible (and allow XSETTINGS
to use it natively) we need a simple API returning the DPI using a
floating point value.
2010-06-21 18:26:38 +01:00
Emmanuele Bassi
19de6d9e5d Deprecate the Backend settings
The Settings instance is the preferred way of accessing the settings.
2010-06-21 17:58:26 +01:00
Emmanuele Bassi
e95a0c194f Remove default settings from backends
The defaults are set in the Settings instance.
2010-06-21 17:57:57 +01:00
Emmanuele Bassi
cd8548fd6f docs: Add Settings to the API reference
And document properties.
2010-06-21 17:57:11 +01:00
Emmanuele Bassi
b470d6930d settings: freeze notification on XSETTINGS notify 2010-06-21 16:10:49 +01:00
Emmanuele Bassi
98c3c84c00 x11: Add the XSETTINGS machinery
Use the XSETTINGS machinery to get notification from foreign
environments about settings that might interest Clutter itself - namely:
the default font name, the font DPI, and the Xft font options that can
be mapped on cairo_font_options_t.
2010-06-21 15:55:36 +01:00
Emmanuele Bassi
437dcad86a settings: Migrate Backend settings to a new object
Instead of storing settings inside the Backend instance we should use a
separate public object.
2010-06-21 15:55:36 +01:00
Robert Bragg
d45ac12628 egl: Consolidates eglx and eglnative into one "egl" winsys
This remove quite a lot of redundant code by consolidating the eglx and
eglnative window system backends.
2010-06-18 17:38:41 +01:00
Robert Bragg
46bed23302 tslib: Add USE_TSLIB conditional for clutter-event-tslib.c
This adds an automake USE_TSLIB condition to decide when we should
compile clutter-event-tslib.c. This is in preparation for consolidating
the eglx and eglnative backends.
2010-06-18 17:38:40 +01:00
Robert Bragg
5b6800bf63 egl: rename clutter-event-egl.c -> clutter-event-tslib.c
clutter-event-egl had nothing to do with EGL, it's code for opening
tslib devices and creating a GSource for touch screen events. It just
happens that this only ever gets used with the eglnative backend.
2010-06-18 17:38:40 +01:00
Robert Bragg
ad9006e561 clutter event egl: fixes lots of compiler warnings
The way the #ifdef HAVE_TSLIB guards were spread around it meant there
were lots of warnings about unused variables when building without
tslib.
2010-06-18 17:38:40 +01:00
Robert Bragg
cd82b704e9 egl: support creating OpenGL contexts
Right before we create the EGL context, we check if we were built with
OpenGL or OpenGLES support and it was OpenGL then we call eglBindAPI
(EGL_OPENGL_API); This also explicitly requests a EGL_RENDERABLE_TYPE
supporting the EGL_OPENGL_BIT.

This will let us add a new ./configure flavour that combines OpenGL and
EGL instead of OpenGL and GLX.
2010-06-18 17:38:40 +01:00
Robert Bragg
a84ecf3919 egl: Unify the eglx and eglnative backends
Without actually consolidating the two backends this patch brings their
code within a cats whisker of each other in preparation for
consolidation.
2010-06-18 17:38:40 +01:00
Robert Bragg
bf9d5f3949 build: distinguish CLUTTER_WINSYS and CLUTTER_SONAME_INFIX
This adds a separate variable name "CLUTTER_SONAME_INFIX" to define the
infix for the clutter library that gets linked. Currently the WINSYS
corresponds to the directory we enter when building to compile the
window system and input support, but it is desirable to be able to
define multiple flavours that use the same WINSYS but should result in
different library names.

For example we are planning to combine the eglx and eglnative window
systems into one "egl" winsys but we will need to preserve the current
library names for the eglx and eglnative flavours.
2010-06-18 17:38:40 +01:00
Neil Roberts
e2dcd7e852 clutter-stage: Use g_array_free instead of g_array_unref
g_array_unref was only added in GLib 2.22 so we should really update
the requirements in the configure script if we want to use that
function. However the array doesn't appear to have any extra reference
taken on it anywhere so it should be safe to use g_array_free instead.
2010-06-18 16:03:07 +01:00
Neil Roberts
5a73e20a15 cogl-context: Use the function pointer for glActiveUnit
Under WGL, any functions that were defined after GL 1.1 are not
directly exported in the DLL so we need to reference them via the
function pointers. A new call to glActiveUnit was missed in
cogl-context.c
2010-06-18 15:34:48 +01:00
Neil Roberts
9cc9033347 cogl-material: Don't use the symbol 'near'
The window headers contain the line

 #define near

so it's not possible to use the symbol 'near' in code that's portable
to Windows. This replaces it with 'near_val'.

I think the define is meant to improve compatibility with code written
for Windows 3.1 where near would be a keyword to make it a smaller
pointer size.
2010-06-18 15:34:48 +01:00
Emmanuele Bassi
0411ba7d32 actor: Parse actions, constraints and effects members
ClutterActor should allow attaching actions, constraints and effects
just like it allows behaviours, e.g.:

  {
    ...
    "constraints" : [
      {
        "type" : "ClutterAlignConstraint",
        "source" : "stage",
        "align-axis" : "x-axis",
        "factor" : 0.5
      },
      {
        "type" : "ClutterAlignConstraint",
        "source" : "stage",
        "align-axis" : "y-axis",
        "factor" : 0.5
      }
    ],
    ...
  }

or:

  {
    ...
    "actions" : [
      {
        "type" : "ClutterDragAction",
        "signals" : [
          { "name" : "drag-end", "handler" : "on_drag_end" }
        ]
      }
    ],
    ...
  }

In order to do so, we use the Scriptable interface implementation and
add three new custom properties accepting an array; then we parse each
member of the array as a new object.
2010-06-17 17:35:00 +01:00
Emmanuele Bassi
a75c02a5d6 constraints: Allow Align and Bind sources to be NULL
Since constructing AlignConstraint and BindConstraint instances could be
deferred (think ClutterScript) we need to make their :source properties
setters accept NULL. This does not break the constraints because they
need to handle that condition in case they actor to which they are
applied is destroyed and somebody is holding a reference on them anyway.
2010-06-17 17:33:10 +01:00
Emmanuele Bassi
a4dbcf0c32 script-parser: Expose extracting the id from a node
The get_id_from_node() internal function should be exposed inside
Clutter (as a private function) because it can be useful to other
custom parsing code. The code is pretty trivial, but it would be
pointless to re-implement it.
2010-06-17 16:41:44 +01:00
Emmanuele Bassi
c85d535a09 actor: Disable the layout cycle warning with debug disabled
If Clutter has been configured with --enable-debug set to 'no' then we
hide most of the warnings.
2010-06-17 12:32:24 +01:00
Emmanuele Bassi
77c63e0237 bind-constraint: Add accessor methods
ClutterBindConstraint should have accessor methods for its properties,
to allow direct manipulation instead of going through GObject's API.
2010-06-17 12:02:28 +01:00
Øyvind Kolås
52d2e7d25d state: add a duration property
Adding a duration property to ClutterState allows the json parsing
to parse the default transition duration with the generic code paths.
2010-06-16 17:45:46 +01:00
Øyvind Kolås
351b6c0543 state: avoid walking off empty list
When removing the last key in a list, the last part of the for statement
could cause dereferencing (NULL)->next and thus segfaulting.
2010-06-16 17:45:13 +01:00
Øyvind Kolås
35c6179a8e animator: avoid walking off empty list
When removing the last key in a list, the last part of the for statement
could cause dereferencing (NULL)->next and thus segfaulting.
2010-06-16 17:45:13 +01:00
Emmanuele Bassi
698cce8276 shader-effect: Add a size check
Similar to the one in commit 2a354d9650
that went into clutter_value_set_shader_*. We end up in the same
situation, but it's better to fail from within ClutterShaderEffect.
2010-06-16 17:17:27 +01:00
Richard Hughes
2a354d9650 shader-types: Check the size of the values
Emit a critical error if the user tries to send more data than
the static shader GValues can hold.

This fixes the random memory corruption you get when specifying
size > 4.

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-06-16 17:14:57 +01:00
Emmanuele Bassi
2d99f77e3b cairo-texture: Disable :sync-size
The :sync-size property of ClutterTexture should be set to FALSE by
default by ClutterCairoTexture. The preferred size of the
ClutterCairoTexture is already the size of the internal Cairo surface,
and we override the preferred width/height getters to that effect.

The :sync-size property is also responsible of changing the size of
the Texture actor when changing the texture handle - but since we
encourage that to happen during the CairoTexture allocation, we get a
queue_relayout() invocation (and a warning) when we change the size
of the Cairo image surface.

Since GObject doesn't make it easy to override the default value of the
:sync-size property in sub-classes, we should simply call the setter
function during the ClutterCairoTexture instance initialization.

We should also change one of the interactive tests using a CairoTexture
to rebuild the contents of the actor in response to an allocation.
2010-06-16 13:58:41 +01:00
Emmanuele Bassi
72fa820dbd cairo-texture: Clean up style 2010-06-16 12:53:02 +01:00
Emmanuele Bassi
859d1f0792 align-constraint: Publish the properties accessors
The accessor methods for the AlignConstraint properties should be
public.
2010-06-16 12:47:56 +01:00
Richard Hughes
72f8bb454a build: Fix a compiler warning when using make dist
Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-06-16 10:43:55 +01:00
Robert Bragg
56315d92bd stage-glx: Never promote clipped redraws to full redraws.
When clipped redraws were first supported in Clutter a heuristic was
added to promote tall clipped redraws into full redraws due to a concern
that using glXCopySubBuffer for tall rectangles would block the GPU for
too long waiting for the vtrace to be in a suitable position so that
tearing isn't seen. We've so far been unable to measure any impact from
this blocking even with full height windows so we are removing the
arbitrary threshold of 300px that was originally "plucked out of thin
air".

http://bugzilla.o-hand.com/show_bug.cgi?id=2136
2010-06-16 01:04:35 +01:00
Emmanuele Bassi
7164da7467 Set the initial value of a variable
Fixes a compiler warning.
2010-06-15 16:42:30 +01:00
Robert Bragg
e312f7ee4a material: Adds arbfp compile counter
This adds a uprof counter to track how many ARBfp programs get compiled
by an application.
2010-06-15 15:26:28 +01:00
Robert Bragg
305721d0e8 material: Support sparse ARBfp program generation
We don't need to generate a new ARBfp program for every material created
if we can find an ancestor whos state will result in the same program
being generated.

The more code we can have adopt the coding pattern of deriving their
materials from other similar materials using cogl_material_copy() the
more likely this metric will be good enough on its own to minimize the
set of arbfp programs necessary to support a given application.
2010-06-15 15:26:28 +01:00
Robert Bragg
2fe58f5000 material: free any layer cache in material_set_parent
Previously in _cogl_material_pre_change_notify we manually freed the
layer caches of a material if we caused a reparent, but it makes more
sense to have _cogl_material_set_parent do this directly instead.
2010-06-15 15:26:28 +01:00
Robert Bragg
dc0cb79598 Adds an internal weak material mechanism
This adds a _cogl_material_weak_copy() function that can be used to
create materials that don't count as strong dependants on their parents.
This means the parent can be modified without worrying about how it will
affect weak materials. The material age of the parent can potentially be
queried to determine if a weak material might need to be re-created.
2010-06-15 15:26:28 +01:00
Robert Bragg
b5bd76cde1 material: Adds a simple material age getter
When we add support for weak materials it's expected that Clutter will
want to attach them as private data to other materials and it needs a
mechanism to determine when a weak material should be re-created because
its parent has changed somehow.

This adds the concept of a material age (internal only currently) which
increments whenever a material is modified. Clutter can then save the
age of the material which its weak materials are derived from and later
determine when the weak material may be invalid.
2010-06-15 15:26:28 +01:00
Robert Bragg
634bcb34f9 primitives: we were memsetting the wrong wrap mode overrides pointer
In _cogl_texture_quad_multiple_primitives we weren't memsetting the
CoglMaterialWrapModeOverrides structure we were memsetting
&state.wrap_mode_overrides where state.wrap_mode_overrides is just a
pointer that might potentially later point to the
CoglMaterialWrapModeOverrides structure.
2010-06-15 15:26:28 +01:00
Robert Bragg
2d6925f243 material: generalize how we compare simple material properties
In _cogl_material_equal we were repeating the same code pattern to
compare several of the state groups so this just adds
simple_property_equal function that's now used instead.
2010-06-15 15:26:28 +01:00
Robert Bragg
c434f1fc48 material: Make CoglMaterial responsible for depth state
This redirects the legacy depth testing APIs through CoglMaterial and
adds a new experimental cogl_material_ API for handling the depth
testing state.

This adds the following new functions:
cogl_material_set_depth_test_enabled
cogl_material_get_depth_test_enabled
cogl_material_set_depth_writing_enabled
cogl_material_get_depth_writing_enabled
cogl_material_set_depth_test_function
cogl_material_get_depth_test_function
cogl_material_set_depth_range
cogl_material_get_depth_range

As with other experimental Cogl API you need to define
COGL_ENABLE_EXPERIMENTAL_API to access them and their stability isn't
yet guaranteed.
2010-06-15 15:26:28 +01:00
Robert Bragg
ff4d3e048b cogl docs: Improve documentation for cogl_ortho
cogl_ortho is one of those APIs whos style was, for better or worse,
copied from OpenGL and for some inexplicable reason the near and far
arguments are inconsistent with the left, right, top, bottom arguments
because they don't take z coordinates they take a "distance" which
should be negative for a plane behind the viewer.

This updates the documentation to explain this.
2010-06-15 15:26:28 +01:00
Robert Bragg
e8275538e5 primitives: no longer assume _get_layers list remains valid
The internal CoglMaterialLayer pointers associated with a material may
change whenever layer properties are modified so it's no longer ok to
assume that a list of layers returned by cogl_material_get_layers
remains valid if the layers have been changed.
2010-06-15 15:26:28 +01:00
Robert Bragg
487c0b1ae9 material: Adds simple breadcrumb debugging mechanism
Since it can sometimes be awkward to figure out where a particular
material came from when debugging, this adds a breadcrumb mechanism that
lets you associate a const string with a material that may give a clue
about its origin.
2010-06-15 15:26:27 +01:00
Robert Bragg
ad0aab939d material: remove override options from _cogl_material_equal
As a follow on to using cogl_material_copy instead of flush options this
patch now removes the ability to pass flush options to
_cogl_material_equal which is the final reference to the
CoglMaterialFlushOptions mechanism.
2010-06-15 15:26:27 +01:00
Robert Bragg
02b7f51e80 cogl: remove _cogl_material_flush_gl_state flush options
Since cogl_material_copy should now be cheap to use we can simplify
how we handle fallbacks and wrap mode overrides etc by simply copying
the original material and making our override changes on the new
material. This avoids the need for a sideband state structure that has
been growing in size and makes flushing material state more complex.

Note the plan is to eventually use weak materials for these override
materials and attach these as private data to the original materials so
we aren't making so many one-shot materials.
2010-06-15 15:26:27 +01:00
Robert Bragg
365605cf42 CoglMaterial: Implements sparse materials design
This is a complete overhaul of the data structures used to manage
CoglMaterial state.

We have these requirements that were aiming to meet:
(Note: the references to "renderlists" correspond to the effort to
support scenegraph level shuffling of Clutter actor primitives so we can
minimize GPU state changes)

Sparse State:
We wanted a design that allows sparse descriptions of state so it scales
well as we make CoglMaterial responsible for more and more state. It
needs to scale well in terms of memory usage and the cost of operations
we need to apply to materials such as comparing, copying and flushing
their state. I.e. we would rather have these things scale by the number
of real changes a material represents not by how much overall state
CoglMaterial becomes responsible for.

Cheap Copies:
As we add support for renderlists in Clutter we will need to be able to
get an immutable handle for a given material's current state so that we
can retain a record of a primitive with its associated material without
worrying that changes to the original material will invalidate that
record.

No more flush override options:
We want to get rid of the flush overrides mechanism we currently use to
deal with texture fallbacks, wrap mode changes and to handle the use of
highlevel CoglTextures that need to be resolved into lowlevel textures
before flushing the material state.

The flush options structure has been expanding in size and the structure
is logged with every journal entry so it is not an approach that scales
well at all. It also makes flushing material state that much more
complex.

Weak Materials:
Again for renderlists we need a way to create materials derived from
other materials but without the strict requirement that modifications to
the original material wont affect the derived ("weak") material. The
only requirement is that its possible to later check if the original
material has been changed.

A summary of the new design:

A CoglMaterial now basically represents a diff against its parent.
Each material has a single parent and a mask of state that it changes.

Each group of state (such as the blending state) has an "authority"
which is found by walking up from a given material through its ancestors
checking the difference mask until a match for that group is found.

There is only one root node to the graph of all materials, which is the
default material first created when Cogl is being initialized.

All the groups of state are divided into two types, such that
infrequently changed state belongs in a separate "BigState" structure
that is only allocated and attached to a material when necessary.

CoglMaterialLayers are another sparse structure. Like CoglMaterials they
represent a diff against their parent and all the layers are part of
another graph with the "default_layer_0" layer being the root node that
Cogl creates during initialization.

Copying a material is now basically just a case of slice allocating a
CoglMaterial, setting the parent to be the source being copied and
zeroing the mask of changes.

Flush overrides should now be handled by simply relying on the cheapness
of copying a material and making changes to it. (This will be done in a
follow on commit)

Weak material support will be added in a follow on commit.
2010-06-15 15:26:27 +01:00
Robert Bragg
5f9c7d3657 material: fix #ifdef guard around use of _TEXTURE_RECTANGLE
We were incorrectly guarding the use of GL_TEXTURE_RECTANGLE_ARB with
ifdef ARB_texture_rectangle instead of ifdef GL_ARB_texture_rectangle
which broke test-cogl-texture-rectangle.
2010-06-15 15:26:27 +01:00
Robert Bragg
a1035389c0 blend-strings: removes the AUTO_COMPOSITE function enum
This was mistakenly added some time ago because at some point when we
were discussing how to handle premultiplied alpha in Clutter/Cogl we
were considering having a magic "just do the right thing" option which
was later abandoned.
2010-06-15 15:26:27 +01:00
Robert Bragg
249ad97c8f cogl-color: add cogl_color_init_from_xyz funcs
This is to try and improve API consistency. Simple cogl structures that
don't derive from CoglObject and which can be allocated on the stack,
such as CoglColor and CoglMatrix should all have  "_init" or
"_init_from" functions to initialize all the structure members. (As
opposed to a cogl_xyz_new() function for CoglObjects). CoglColor
previously used the naming scheme "_set_from" for these initializers but
"_set" is typically reserved for setting individual properties of a
structure/object.

This adds three _init functions:
cogl_color_init_from_4ub
cogl_color_init_from_4f
cogl_color_init_from_4fv

The _set_from functions are now deprecated but only with a gtk-doc
annotation for now. This is because the cogl_color_set_from API is quite
widely used already and so were giving a grace period before enabling a
GCC deprecated warning just because otherwise the MX maintainers will
complain to me that I've made their build logs look messy.
2010-06-15 15:26:27 +01:00
Robert Bragg
500baa4157 cogl-color: add private _cogl_color_get_rgba_4ubv API
The journal logs colors as 4bytes into a vertex array and since we are
planning to make CoglMaterial track its color using a CoglColor instead
of a byte array this convenience will be useful for re-implementing
_cogl_material_get_colorubv.
2010-06-15 15:26:27 +01:00
Johan Bilien
272cf6d943 build: Do not include built sources in the distribution
allows to run make distcheck without first running make

http://bugzilla.openedhand.com/show_bug.cgi?id=2171

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-06-15 15:05:47 +01:00
Øyvind Kolås
2cee8b648e state: consistently use clutter_state_get_state where possible
The previous commit reimplemented logic for creating states, this - and
other parts of the code should be using clutter_state_get_state.
2010-06-14 17:29:34 +01:00
Øyvind Kolås
d5c93f6d55 state: make null source state encounterd in json treated as wildcard
To be properly useful the state machine needs to be able to specify the
default transitions to a target state with no specified source state.
2010-06-14 15:49:20 +01:00
Emmanuele Bassi
b8b10ef4db docs: Clarify the scope of Text:single-line-mode
Only editable text actors can be in single-line mode.
2010-06-14 14:05:49 +01:00
Neil Roberts
38da6b4a0e clutter-text: Round the layout width to nearest integer not down
When converting the floating point allocation width to an integer
multiple of PANGO_SCALE to give to the PangoLayout it can sometimes
end up slightly short of the allocated size due to rounding
errors. This can cause some of the lines to be wrapped differently
when a non-integer-aligned position is used (such as when animating
text). It works better to round the number to the nearest integer by
adding 0.5 instead of letting the default float cast truncate it
downwards.

http://bugzilla.openedhand.com/show_bug.cgi?id=2170
2010-06-14 12:00:26 +01:00
Emmanuele Bassi
f97d16cd2d drag-action: Remove the press event button
Both ::drag-begin and ::drag-end have a "button" argument - even though
we assume internally, and externally, that dragging can only be the
result of a primary button operation.
2010-06-12 17:45:54 +01:00
Emmanuele Bassi
b8b2a51d44 Merge branch 'wip/deform-effect'
* wip/deform-effect:
  docs: Add DeformEffect and PageTurnEffect to the API reference
  effect: Add PageTurnEffect
  effect: Add DeformEffect
  offscreen-effect: Traslate the modelview with the offsets
  docs: Fix Effect subclassing section
2010-06-11 18:12:54 +01:00
Emmanuele Bassi
b2c905ff50 Hide the marshallers
The marshallers we use for the signals are declared in a private header,
and it stands to reason that they should also be hidden in the shared
object by using the common '_' prefix. We are also using some direct
g_cclosure_marshal_* symbol from GLib, instead of consistently use the
clutter_marshal_* symbol.
2010-06-11 16:09:36 +01:00
Neil Roberts
ded9322a7a cogl/winsys/cogl-eglx: Use the right egl header on 1.1
Commit b0cc98fdce introduced a #include for the egl header in
cogl-eglx.c The header name is different under GLES 1.1 so it broke
compilation.
2010-06-11 16:06:31 +01:00
Neil Roberts
64e6cf69d7 cogl-program: Add cogl_program_uniform_1i to GLES
The GLES 1.1 backend was missing a stub for cogl_program_uniform_1i.
2010-06-11 16:06:31 +01:00
Neil Roberts
181b46933a cogl-gles2: Prefix internal GLES 2 wrapper symbols with _
Some internal symbols used for the GLES 2 wrapper were accidentally
being exported. This prepends an underscore to them so they won't
appear in the shared library.
2010-06-11 16:06:31 +01:00
Emmanuele Bassi
e00ed20805 click-action: Use clutter_actor_contains()
Instead of an internal copy.
2010-06-11 15:23:46 +01:00
Dan Winship
f3f3b56742 actor: add clutter_actor_contains()
It is often useful to determine if one actor is an ancestor of
another. Add a method to do that.

http://bugzilla.openedhand.com/show_bug.cgi?id=2162

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-06-11 15:19:45 +01:00
Emmanuele Bassi
d816acd834 shader-effect: Allow creating vertex shaders
By default, ShaderEffect creates a fragment shader; in order to be able
to deprecate ClutterShader we need a way for ShaderEffect sub-classes to
create a vertex shader if needed - By using a write-only, constructor
only property.

ClutterShader has, internally, a ClutterShaderType enumeration that can
be used exactly for this. We just need to expose it and create a GObject
property for ClutterShaderEffect.
2010-06-11 14:47:48 +01:00
Neil Roberts
0f41948c82 cogl-clip-stack: Always use the scissor when clipping
Whenever a path or a rectangle is added to the clip stack it now also
stores a screen space bounding box in the entry. Then when the clip
stack is flushed the bounding box is first used to set up the
scissor. That way when we eventually come to use the stencil buffer
the clear will be affected by the scissor so we don't have to clear
the entire buffer.
2010-06-10 21:52:55 +01:00
Neil Roberts
e74387f36f cogl-path: Export _cogl_path_get_bounds
_cogl_path_get_bounds is no longer static and is exported in
cogl-path-private.h so that it can be used in the clip stack code. The
old version of the function returned x/y and width/height. However
this was mostly used to call cogl_rectangle which takes x1/y1
x2/y2. The function has been changed to just directly return the
second form because it is more useful. Anywhere that was previously
using the function now just directly looks at path->path_nodes_min and
path->path_nodes_max instead.
2010-06-10 21:52:54 +01:00
Neil Roberts
0bc16c90ad cogl-clip-state: Export transform_point internally to Cogl
The transform_point function takes a modelview matrix, projection
matrix and a viewport and performs all three transformations on a
point to give a Cogl window coordinate. This is useful in a number of
places in Cogl so this patch moves it to cogl.c and adds it to
cogl-internal.h
2010-06-10 21:52:49 +01:00
Sunil Sadasivan
67812d6649 cogl_texture_get_data() copies using wrong width size.
For sliced 2D textures, _cogl_texture_2d_sliced_get_data() uses the
bitmap width, instead of the rowstride, when memcpy()ing into the
dest buffer.

Signed-off-by: Robert Bragg <robert@linux.intel.com>
2010-06-10 20:58:22 +01:00
Damien Lespiau
e562ac20df cogl-color: Provide setters for all the channels
We only had getters for the red, green, blue and alpha channels of a
color. This meant that, if you wanted to change, say, the alpha
component of a color, one would need to query the red, green and blue
channels and use set_from_4ub() or set_from_4f().

Instead of this, just provide some setters for CoglColor, using the same
naming scheme than the existing getters.
2010-06-10 20:02:01 +01:00
Damien Lespiau
55be1a23c3 cogl-color: Add cogl_color_unpremultiply()
For some operations on pre-multiplied colors (say, replace the alpha
value), you need to unpremultiply the color.

This patch provides the counterpart to cogl_color_premultiply().
2010-06-10 20:01:48 +01:00
Emmanuele Bassi
396914176f cogl: Initialize the framebuffer bits on state flush
The place where we actually change the framebuffer is
_cogl_framebuffer_flush_state(), so if we changed to a new frame buffer
we need to initialize the color bits there.

http://bugzilla.openedhand.com/show_bug.cgi?id=2094
2010-06-10 19:55:18 +01:00
Emmanuele Bassi
15881e0f24 cogl-framebuffer: Use the FBO extension for color sizes
OpenGL 3.0 deprecated querying of the GL_{RED,GREEN,BLUE}_BITS
constants, and the FBO extension provides a mechanism to query for the
color buffer sizes which *should* work even with the default
framebuffer. Unfortunately, this doesn't seem to hold for Mesa - so we
just use this for the offscreen CoglFramebuffer type, and we fall back
to glGetIntegerv() for the onscreen one.

http://bugzilla.openedhand.com/show_bug.cgi?id=2094
2010-06-10 19:53:39 +01:00
Emmanuele Bassi
3daafd4711 cogl: Hide cogl_framebuffer_get_*_bits()
These accessors should be private, for the time being.

http://bugzilla.openedhand.com/show_bug.cgi?id=2094
2010-06-10 19:06:37 +01:00
Emmanuele Bassi
44f300b3a2 effect: Add PageTurnEffect
A simple deformation effect that simulates a page curl.

Ported from MxDeformPageTurn inside the Mx toolkit, written by
Chris Lord.
2010-06-10 18:40:29 +01:00
Emmanuele Bassi
c2081a076c effect: Add DeformEffect
DeformEffect is an abstract class that should be used to write effects
that change the geometry of an actor before submitting it to the GPU.

Just like the ShaderEffect class, DeformEffect renders the actor to
which it has been applied into an FBO; then it creates a mesh and stores
it inside a VBO. Sub-classes can control vertex attributes like
position, texel coordinates and the color.
2010-06-10 18:40:29 +01:00
Emmanuele Bassi
fa381cc361 offscreen-effect: Traslate the modelview with the offsets
Instead of using the stage offsets when painting we can simply traslate
the current modelview. This allows sub-classes to fully override the
paint_target() virtual function without chaining up.
2010-06-10 18:40:24 +01:00
Emmanuele Bassi
8d22fea31c docs: Fix Effect subclassing section
It still mentions the long since removed "prepare" function.
2010-06-10 17:34:48 +01:00
Neil Roberts
dc09fca264 cogl-material: Fix the function which sets the enable blend flag
This function had two problems. Firstly it would clear the enable
blend flag before calling pre_change_notify so that if blending was
previously enabled the journal would end up being flushed while the
flag was still cleared. Secondly it would call the pre change notify
whenever blending is needed regardless of whether it was already
needed previously.

This was causing problems in test-depth.
2010-06-09 17:26:15 +01:00
Robert Bragg
b1f7d2fea8 material: Avoid redundant glBindTexture calls
This adds a _cogl_bind_gl_texture_transient function that should be used
instead of glBindTexture so we can have a consistent cache of the
textures bound to each texture unit so we can avoid some redundant
binding.
2010-06-09 17:26:15 +01:00
Robert Bragg
ce6e80315e material: Adds backend abstraction for fragment processing
As part of an effort to improve the architecture of CoglMaterial
internally this overhauls how we flush layer state to OpenGL by adding a
formal backend abstraction for fragment processing and further
formalizing the CoglTextureUnit abstraction.

There are three backends: "glsl", "arbfp" and "fixed". The fixed backend
uses the OpenGL fixed function APIs to setup the fragment processing,
the arbfp backend uses code generation to handle fragment processing
using an ARBfp program, and the GLSL backend is currently only there as
a formality to handle user programs associated with a material. (i.e.
the glsl backend doesn't yet support code generation)

The GLSL backend has highest precedence, then arbfp and finally the
fixed. If a backend can't support some particular CoglMaterial feature
then it will fallback to the next backend.

This adds three new COGL_DEBUG options:
* "disable-texturing" as expected should disable all texturing
* "disable-arbfp" always make the arbfp backend fallback
* "disable-glsl" always make the glsl backend fallback
* "show-source" show code generated by the arbfp/glsl backends
2010-06-09 17:15:59 +01:00
Neil Roberts
8cee3c8670 cogl-atlas-texture: Flush the journal before starting blit not after
_cogl_atlas_texture_blit_begin binds a texture to use as the
destination and it expects it to stay bound until
_cogl_atlas_texture_end_blit is called. However there was a call to
_cogl_journal_flush directly after setting up the blit state which
could cause the wrong texture to be bound. This just moves the flush
to before the call to _cogl_atlas_texture_blit_begin.

This was breaking test-cogl-sub-texture.
2010-06-09 15:22:05 +01:00
Robert Bragg
413e631f48 atlas: fix some journal flushing issues
1) Always flush when migrating textures out of an atlas because although
it's true that the original texture data will remain valid in the
original texture we can't assume that journal entries have resolved the
GL texture that will be used. This is only true if a layer0_override has
been used.

2) Don't flush at the point of creating a new atlas simply flush
immediately before reorganizing an atlas. This means we are now assuming
that we will never see recursion due to atlas textures being modified
during a journal flush. This means it's the responsibility of the
primitives code to _ensure_mipmaps for example not the responsibility of
_cogl_material_flush_gl_state.
2010-06-09 15:19:31 +01:00
Robert Bragg
d407bb520f primitives: make sure to update texture storage before drawing
We want to make sure that the material state flushing code will never
result in changes to the texture storage for that material. So for
example mipmaps need to be ensured by the primitives code.

Changes to the texture storage will invalidate the texture coordinates
in the journal and we want to avoid a recursion of journal flushing.
2010-06-09 15:19:31 +01:00
Robert Bragg
2f8d4fc180 matrix: add cogl_matrix_equal API
This adds a way to compare two CoglMatrix structures to see if they
represent the same transformations. memcmp can't be used because a
CoglMatrix contains private flags and padding.
2010-06-09 15:19:31 +01:00
Damien Lespiau
9815d75ebd cogl-material: Use fragment programs instead of texture env combiners
THIS IS A WORK IN PROGRESS

Mesa is building a big shader when using ARB_texture_env_combine. The
idea is to bypass that computation, do it ourselves and cache the
compiled program in a CoglMaterial.

For now that feature can be enabled by setting the COGL_PIPELINE
environment variable to "arbfp". COGL_SHOW_FP_SOURCE can be set to a non
empty string to dump the fragment program source too.

TODO:
  * fog (really easy, using OPTION)
  * support tex env combiner operands, DOT3, ADD_SIGNED, INTERPOLATE
    combine modes (need refactoring the generation of temporary
    variables) (not too hard)
  * alpha testing for GLES 2.0?
2010-06-09 15:19:30 +01:00
Damien Lespiau
df44c2e9e4 cogl: Introduce private feature flags and check for ARB_fp
The Cogl context has now a feature_flags_private enum that will allow us
to query and use OpenGL features without exposing them in the public
API.

The ARB_fragment_program extension is the first user of those flags.
Looking for this extension only happens in the gl driver as the gles
drivers will not expose them.

One can use _cogl_features_available_private() to check for the
availability of such private features.

While at it, reindent cogl-internal.h as described in CODING_STYLE.
2010-06-09 15:19:30 +01:00
Emmanuele Bassi
91a359c44e Always have a valid font map
Every time we request a CoglPangoFontMap, either internally or
externally, we should have one available.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2010-06-09 11:55:19 +01:00
Johan Bilien
5929468599 Create the pango context in clutter_set_font_flags
if it wasn't already. Allows honoring CLUTTER_FONT_MIPMAPPING.

http://bugzilla.openedhand.com/show_bug.cgi?id=2161

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
2010-06-09 11:14:58 +01:00