Commit Graph

64 Commits

Author SHA1 Message Date
Robert Bragg
e9a45c7744 Merge branch 'cogl-material'
Conflicts:

	clutter/cogl/gl/cogl-texture.c
	clutter/cogl/gles/cogl-primitives.c

* cogl-material:
 clutter-{clone-,}texture weren't updating their material opacity.
 Updates GLES1 support for CoglMaterial
 Normalizes gl vs gles code in preperation for synching material changes
 Removes cogl_blend_func and cogl_alpha_func
 Fully integrates CoglMaterial throughout the rest of Cogl
 [cogl-material] Restore the GL_TEXTURE_ENV_MODE after material_rectangle
 [cogl-material] Make the user_tex_coords parameter of _rectangle const
 [test-cogl-material] Remove return value from material_rectangle_paint
 Add cogl-material.h and cogl-matrix.h to libclutterinclude_HEADERS
 [cogl-material] improvements for cogl_material_rectangle
 [cogl-material] Adds a cogl_material_set_color function
 [cogl-material] Some improvements for how we sync CoglMaterial state with OpenGL
 [cogl-material] Converts clutter-texture/clutter-clone-texture to the material API
 [doc] Hooks up cogl-material reference documentation
 Updates previous GLES multi-texturing code to use CoglMaterial
 Adds a CoglMaterial abstraction, which includes support for multi-texturing
 [doc] Hooks up cogl-matrix reference documentation
 Adds CoglMatrix utility code
 [tests] Adds an interactive unit test for multi-texturing
 [multi-texturing] This adds a new cogl_multi_texture API for GL,GLES1 + GLES2
2009-01-27 15:19:34 +00:00
Robert Bragg
9266e110de Removes test-simple from tests/interactive/Makefile.am
The addition was accidental
2009-01-27 15:17:16 +00:00
Robert Bragg
5985eef44c Fully integrates CoglMaterial throughout the rest of Cogl
This glues CoglMaterial in as the fundamental way that Cogl describes how to
fill in geometry.

It adds cogl_set_source (), which is used to set the material which will be
used by all subsequent drawing functions

It adds cogl_set_source_texture as a convenience for setting up a default
material with a single texture layer, and cogl_set_source_color is now also
a convenience for setting up a material with a solid fill.

"drawing functions" include, cogl_rectangle, cogl_texture_rectangle,
cogl_texture_multiple_rectangles, cogl_texture_polygon (though the
cogl_texture_* funcs have been renamed; see below for details),
cogl_path_fill/stroke and cogl_vertex_buffer_draw*.

cogl_texture_rectangle, cogl_texture_multiple_rectangles and
cogl_texture_polygon no longer take a texture handle; instead the current
source material is referenced. The functions have also been renamed to:
cogl_rectangle_with_texture_coords, cogl_rectangles_with_texture_coords
and cogl_polygon respectivly.

Most code that previously did:
  cogl_texture_rectangle (tex_handle, x, y,...);
needs to be changed to now do:
  cogl_set_source_texture (tex_handle);
  cogl_rectangle_with_texture_coords (x, y,....);

In the less likely case where you were blending your source texture with a color
like:
  cogl_set_source_color4ub (r,g,b,a); /* where r,g,b,a isn't just white */
  cogl_texture_rectangle (tex_handle, x, y,...);
you will need your own material to do that:
  mat = cogl_material_new ();
  cogl_material_set_color4ub (r,g,b,a);
  cogl_material_set_layer (mat, 0, tex_handle));
  cogl_set_source_material (mat);

Code that uses the texture coordinates, 0, 0, 1, 1 don't need to use
cog_rectangle_with_texure_coords since these are the coordinates that
cogl_rectangle will use.

For cogl_texture_polygon; as well as dropping the texture handle, the
n_vertices and vertices arguments were transposed for consistency. So
code previously written as:
  cogl_texture_polygon (tex_handle, 3, verts, TRUE);
need to be written as:
  cogl_set_source_texture (tex_handle);
  cogl_polygon (verts, 3, TRUE);

All of the unit tests have been updated to now use the material API and
test-cogl-material has been renamed to test-cogl-multitexture since any
textured quad is now technically a test of CoglMaterial but this test
specifically creates a material with multiple texture layers.

Note: The GLES backend has not been updated yet; that will be done in a
following commit.
2009-01-27 14:26:39 +00:00
Neil Roberts
8e437e838f Simplify test-cogl-primitives
This removes a lot of code from test-cogl-primitives to make it easier
to follow. The TestCoglBox custom actor has gone and instead a blank
ClutterGroup is created with a paint signal handler.

Instead of rendering constantly and updating when a GTimer elapses a
second, a ClutterTimeline is used with 1 fps and a new redraw is
queued every frame.

The custom main loop is replaced with a regular call to clutter_main.
This fixes the close button of the stage window so you can quit
without having to press Ctrl+C.
2009-01-23 23:55:44 +00:00
Neil Roberts
343b0ed67e [test-cogl-primitives] Remove trailing whitespace 2009-01-23 23:41:26 +00:00
Robert Bragg
3d07e34cc5 Merge commit 'origin/master' into cogl-material
Conflicts:

	clutter/clutter-texture.c
	clutter/cogl/cogl-texture.h
	clutter/cogl/cogl.h.in
	clutter/cogl/common/Makefile.am
	clutter/cogl/gl/Makefile.am
	clutter/cogl/gles/Makefile.am
	clutter/cogl/gles/cogl-gles2-wrapper.c
	clutter/cogl/gles/cogl-gles2-wrapper.h
2009-01-23 15:23:49 +00:00
Emmanuele Bassi
915d9ec7ca Split maintainer-flags from the compiler flags
The maintainer compiler flags we use trigger warnings and errors
in the autogenerated code that gtk-doc creates to scan the header
and source files. Since we cannot control that, and we must run
a distcheck with both --enable-gtk-doc and --enable-maintainer-flags
turned on, we need to use less-strict compiler flags when inside
the doc/reference subdirectories.

The way to do this is to split the maintainer compiler flags into
their own Makefile variable, called MAINTAINER_CFLAGS. The we
can use $(MAINTAINER_CFLAGS) in the INCLUDES or _CFLAGS sections
of each part of the source directories we wish to check with the
anal retentiveness suited for maintainers.
2009-01-23 13:09:51 +00:00
Emmanuele Bassi
20973bd29f Fix compiler warnings
The maintainer-flags option discovered the usual amount of
collisions and compiler warnings we have to fix in order to
get distcheck to pass.
2009-01-23 13:08:46 +00:00
Emmanuele Bassi
792ffa1538 Merge branch 'float-alpha-value'
* float-alpha-value:
  [script] Parse easing modes by name
  [docs] Update the easing modes documentation
  [animation] Implement new easing functions
  [animation] Move the alpha value to floating point
2009-01-23 12:10:50 +00:00
Emmanuele Bassi
07689865fe [tests] Update the tests calling cogl_texture_new_*
The tests calling any of the cogl_texture_new_* family of functions
must be updated to the new constructor syntax.
2009-01-21 10:14:29 +00:00
Robert Bragg
3014d4ff8a Merge branch 'cogl-float'
Okey; to summarise the changes...

We have converted Clutter and Cogl over to using floating point internally
instead of 16.16 fixed, but we have maintained the cogl-fixed API as a
utility to applications in case they want to implement their own optimizations.

The Clutter API has not changed (though ClutterFixed and ClutterUnit are now
internally floats) but all Cogl entry points have been changed to accept floats
now instead of CoglFixed.

To summarise the rationale...

There have been a number of issues with using fixed point though out Clutter
and Cogl including: lack of precision, lack of range, excessive format
conversion (GPUs tend to work nativly with IEEE floats) and maintainability.
One of the main arguments for fixed point - performance - hasn't shown
itself to be serious in practice so far since we seem to be more limited
by GPU performance and making improvements regarding how we submit data to
OpenGL[ES]/the GPU has had a more significant impact.

Ref: The recent multiple rectangle queuing changes + the
cogl-texture-agressive-batching branch which show significant performance
gains, and that recent tests on the ipodtouch (ARM + MBX) also showed no
loss of performance running with floats.

So finally; please forgive the inevitable fallout, this is a far reaching
change. There are still a few known issues with the fixed to float
conversion but enough works for all our conformance tests to pass, and the
remaining issues hopefully wont be too tricky to solve. For reference two
tags will be available either side of this change: "cogl-fixed-end" and
"cogl-float-start"
2009-01-20 18:47:50 +00:00
Emmanuele Bassi
ac1a0d568e [script] Parse easing modes by name
The easing modes for a ClutterAlpha can either be parsed by using
the enumeration "nickname" (the shorthand form of the enumeration
value) or by using the common naming policy used in other
animation frameworks, like:

        easeInCubic
        easeOutElastic
        easeInOutBounce
2009-01-20 18:24:58 +00:00
Emmanuele Bassi
ec3b1a7b90 [animation] Implement new easing functions
Instead of using our own homegrown alpha functions, we should
use the easing functions also shared by other animation frameworks,
like jQuery and Tween, in the interests of code portability.

The easing functions have been defined by Robert Penner and
are divided into three categories:

        In    Out     InOut

Each category has a particular curve:

        Quadratic
        Cubic
        Quartic
        Quintic
        Sinusoidal
        Exponential
        Circular

In addition, there are "physical" curves:

        Elastic
        Back (overshooting cubic)
        Bounce (exponentially decaying parabolic)

Finally, the Linear curve is also provided as a reference.

The functions are private, and are meant to be used only
through their logical id as provided by the AnimationMode
enumeration.

The tests should be updated as well to match the new
easing functions.
2009-01-20 17:57:30 +00:00
Emmanuele Bassi
7d7372af43 [animation] Move the alpha value to floating point
The current Alpha value is an unsigned integer that can be used
implicitly as a fixed point value. This makes writing an alpha
function overshooting below and above the current range basically
impossible without complicating an already complex code, and
creating weird corner cases.

For this reason, the Alpha value should be defined as a floating
point normalized value, spanning a range between 0.0 and 1.0; in
order to allow overshooting, the valid range is extended one unit
below and one unit above, thus making it -1.0 .. 2.0.

This commit updates the various users of the ClutterAlpha API
and the tests cases.

This commit also removes all the current alpha functions exposed
in the public API.
2009-01-20 16:42:49 +00:00
Robert Bragg
a2cf7e4a19 [Automatic fixed-to-float.sh change] Applies a number fixed to float patches
To deal with all the corner cases that couldn't be scripted a number of patches
were written for the remaining 10% of the effort.

Note: again no API changes were made in Clutter, only in Cogl.
2009-01-20 16:20:54 +00:00
Robert Bragg
e82f656590 [Automatic fixed-to-float.sh change] Applies all scripted changes
This is the result of running a number of sed and perl scripts over the code to
do 90% of the work in converting from 16.16 fixed to single precision floating
point.

Note: A pristine cogl-fixed.c has been maintained as a standalone utility API
      so that applications may still take advantage of fixed point if they
      desire for certain optimisations where lower precision may be acceptable.

Note: no API changes were made in Clutter, only in Cogl.

Overview of changes:
- Within clutter/* all usage of the COGL_FIXED_ macros have been changed to use
the CLUTTER_FIXED_ macros.

- Within cogl/* all usage of the COGL_FIXED_ macros have been completly stripped
and expanded into code that works with single precision floats instead.

- Uses of cogl_fixed_* have been replaced with single precision math.h
alternatives.

- Uses of COGL_ANGLE_* and cogl_angle_* have been replaced so we use a float for
angles and math.h replacements.
2009-01-20 16:20:54 +00:00
Emmanuele Bassi
74213e0ee3 [alpha] Allow registering alpha functions
In order to unify alpha functions and animation modes in ClutterAlpha
we should be able to register alpha functions and get a logical id
for them; the logical id will then be available to be used by
clutter_alpha_set_mode().

The registration requires API changes in ClutterAlpha constructors
and methods. It also provides the chance to shift ClutterAlpha
towards the use of animations modes only, and to alpha functions
as a convenience API for language bindings alone.
2009-01-16 14:37:35 +00:00
Emmanuele Bassi
41386a5f72 Remove the Effects API
The Effects API and all related symbols have been superceded by
the newly added Animation API and clutter_actor_animate().

This commit removes the Effects implementation, the documentation
and the interactive test/example code.
2009-01-14 16:56:21 +00:00
Robert Bragg
3e9e5a11da [test-depth] cast width to gint when calculating -width/2
It was a fluke that this worked out due to how clutter_actor_set_depth
internally converts the incorrect integer result to fixed point.
2009-01-14 15:25:27 +00:00
Robert Bragg
f1b15efcdc [tests] Adds a flowery clutter_cairo_texture unit test
This is simply a copy of flowers.c from the old clutter-cairo repo
2009-01-14 15:25:27 +00:00
Emmanuele Bassi
a074106ded Merge branch 'animation-improvements'
* animation-improvements:
  [docs] Add ClutterAnimatable to the API reference
  Add license notice to ClutterAnimation files
  [docs] Update the ClutterAnimation section
  [animation] Extend ClutterAnimation support to all objects
  [animation] Use ClutterAnimatable inside Animation
  [animation] Add ClutterAnimatable
  [animation] Allow registering custom progress function
  [animation] Interval::compute_value should return a boolean
  Animate ClutterColor properties
2009-01-14 15:00:44 +00:00
Emmanuele Bassi
c83d955af3 Fix compilation warning
Declare the width and height variables as unsigned ints, in order
to match the required arguments for clutter_actor_get_size().
2009-01-14 14:34:35 +00:00
Robert Bragg
616c082a7c Merge commit 'origin/master' into cogl-material
Conflicts:

	clutter/clutter-texture.c
	clutter/cogl/cogl-texture.h
	clutter/cogl/gles/cogl-context.c
	clutter/cogl/gles/cogl-context.h
2009-01-13 13:37:38 +00:00
Emmanuele Bassi
e9ee7f049d Fix last improper usage of ClutterUnits
ClutterUnits should not be used interchangeably as, or with
ClutterFixed values. ClutterUnits should also not be assumed
to be integers.

This commit fixes the last few improper usages of ClutterUnit
values, and adds a CLUTTER_UNITS_FORMAT macro for safely printing
ClutterUnit values with printf().
2009-01-08 16:00:47 +00:00
Robert Bragg
e4b1859077 [test-clip] Use gint for hand_{width,height} when calulating -hand_* /2
It was a fluke that this worked out due to how the incorrect integer
result gets converted by CLUTTER_INT_TO_FIXED.
2009-01-08 11:38:31 +00:00
Robert Bragg
cc8cd8392f [test-depth] Use a gint for width, not guint, when calculating -width/2
It was a fluke that this worked out due to how clutter_actor_set_depth
internally converts the incorrect integer result to fixed point.
2009-01-08 11:03:23 +00:00
Emmanuele Bassi
5913bcf7e3 [tests] Update the ClutterText interactive test
Remove the unused functions and if the test fails to load the
text from a file, show the error inside the text actor itself.
2009-01-07 15:54:08 +00:00
Emmanuele Bassi
c297d1ccf1 [tests] Make test-scale use ClutterText
The ClutterLabel actor has been superceded by ClutterText.

This is merge fall-out from the text-actor branch.
2009-01-07 12:17:09 +00:00
Emmanuele Bassi
796294fd4e [tests] Remove test-opacity interactive test
Merge fall-out from the text-actor branch. The test-opacity test
was moved to the conformance test suite.
2009-01-07 12:17:02 +00:00
Emmanuele Bassi
c54bd99097 Merge the ClutterText actor
Merge branch 'text-actor'

* text-actor: (108 commits)
  Re-align ClutterText header file
  [text] Fix cursor sizing
  Comments and whitespace fixes to ClutterText
  [docs] Add newly added :single-line-mode accessors
  Update the ignore file
  [tests] Add text field interactive test
  [text] Add single-line-mode to ClutterText
  [text] Fix the deletion actions
  [text] Use cached length when possible
  [tests] Add unit for the ClutterText:password-char property
  [docs] Update the Text section
  [text] Coalesce text visibility and password character
  Allow localizations to change the text direction
  Clean up the update_pango_context() function
  Pass the PangoContext, not the MainContext
  Revert the logic of the PangoContext check
  Remove the binding pool entry from the list
  Remove BindingPool::list_actions()
  Add ClutterActor::create_pango_context()
  Rename the PangoContext creation functions
  ...
2009-01-07 12:06:33 +00:00
Emmanuele Bassi
71c03df967 [tests] Add text field interactive test
The test-text-field is a test/example that shows how to use the
ClutterText as a text input field in single line mode.
2009-01-07 00:27:50 +00:00
Neil Roberts
b3b7312f33 [test-cogl-material] Remove return value from material_rectangle_paint
The paint signal has no return value so it isn't needed. This fixes
a compiler warning.
2009-01-06 16:01:23 +00:00
Emmanuele Bassi
854cf5d499 Animate ClutterColor properties
We can animate a ClutterColor-based property between an interval
of two colors by simply applying the factor to each color component.
2009-01-06 12:53:30 +00:00
Emmanuele Bassi
fd2d78918b Merge branch 'units-rework'
* units-rework:
  [texture] Do not mix fixed point and units values
  [tests] Fix the actor detection
  [units] Do not use fixed point and units interchangeably
2009-01-05 11:11:10 +00:00
Robert Bragg
377f114046 [cogl-material] improvements for cogl_material_rectangle
The API has been changed to take an explicit length for the number of
texture coordinates passed, and it's now documented that if there are
more layers to the current material than the number of texture coords
passed, then default coordinates will be generated for the other
layers.

cogl_material_rectangle should now handle the case where a single
sliced texture is supplied as a material layer by falling back to
cogl_texture_rectangle. We are nearly at the point that
cogl_texture_rectangle could be deprecated. A few issues remain
though, such as not considering waste in cogl_material_rectangle.
2008-12-24 01:35:33 +00:00
Robert Bragg
40b0bb4e95 Adds a CoglMaterial abstraction, which includes support for multi-texturing
My previous work to provide muti-texturing support has been extended into
a CoglMaterial abstraction that adds control over the texture combine
functions (controlling how multiple texture layers are blended together),
the gl blend function (used for blending the final primitive with the
framebuffer), the alpha function (used to discard fragments based on
their alpha channel), describing attributes such as a diffuse, ambient and
specular color (for use with the standard OpenGL lighting model), and
per layer rotations. (utilizing the new CoglMatrix utility API)

For now the only way this abstraction is exposed is via a new
cogl_material_rectangle function, that is similar to cogl_texture_rectangle
but doesn't take a texture handle (the source material is pulled from
the context), and the array of texture coordinates is extended to be able
to supply coordinates for each layer.

Note: this function doesn't support sliced textures; supporting sliced
textures is a non trivial problem, considering the ability to rotate layers.
Note: cogl_material_rectangle, has quite a few workarounds, for a number of
other limitations within Cogl a.t.m.
Note: The GLES1/2 multi-texturing support has yet to be updated to use
the material abstraction.
2008-12-22 16:35:52 +00:00
Robert Bragg
fc7a86fd0d [tests] Adds an interactive unit test for multi-texturing
This simply gives an example of blending a red o-hand logo with an alpha mask
and a changing light map.
2008-12-22 16:35:51 +00:00
Robert Bragg
c700d4c9a1 [tests] Ensures that test-viewport.c is built
test-viewport.c wasn't listed correctly in the UNIT_TESTS variable
(it was missing the .c extension, and so it wasn't being built.)
2008-12-21 14:07:35 +00:00
Emmanuele Bassi
f6e9a701e4 [tests] Fix the actor detection
The test-unproject interactive test assumed that only the rectangle was
on the stage. As it turns out, labels can be picked as well.
2008-12-19 13:03:53 +00:00
Neil Roberts
9cd92fc540 [test-scale] Add a label showing the gravity
A label is now displayed under the rectangle showing the current
gravity. The text for the gravity is taken from the GEnumClass. This
makes it easier to verify that the test is working correctly.
2008-12-18 17:40:36 +00:00
Neil Roberts
c68cf3564e [test-paint-wrapper] Use a separate paint guard for each actor
Since commit c7c5cf9b ClutterCloneTexture causes an extra paint of the
source actor during the paint run of the cloned texture if the source
is not yet visible. When the stage is first shown it is redrawn
immediatly before it is mapped which means get_paint_visibility will
fail on the source actor so the inner paint will be run. The paint
guards were a global variable so they didn't cope with a second actor
being painted.

The breakage didn't occur until commit d510a4b0 because
get_paint_visibility was also broken.
2008-12-15 16:33:45 +00:00
Emmanuele Bassi
5c14044e52 Update the interactive tests to ClutterText
Instead of using ClutterLabel, use ClutterText to display some
text where needed.
2008-12-11 13:48:01 +00:00
Emmanuele Bassi
24a6163688 Do not compile the opacity and entry interactive tests
The test-opacity interactive test is superceded by the equivalent
units inside the conformance test suite.

The test-entry interactive test is superceded by the test-text one.
2008-12-11 13:45:22 +00:00
Emmanuele Bassi
ec4c15f8e7 Comment out the mapping API
The test-text interactive test for ClutterText should not use
the mapping API, since ClutterText does not have it anymore.
2008-12-11 12:07:20 +00:00
Emmanuele Bassi
64af7bafe3 Move test-threads to ClutterText
The test-threads interactive test is a good candidate for the
switch from ClutterLabel to ClutterText to verify that the
behaviour of the two classes is the same.
2008-12-11 11:37:46 +00:00
Emmanuele Bassi
5ac16652df Update the ClutterText interactive test
Use ClutterText's own API instead of relying on the Label's API.

ClutterText is not meant to be a subclass of ClutterLabel.
2008-12-11 11:18:05 +00:00
Emmanuele Bassi
a98720ae19 Initial import of the Text actor from Tidy
The TidyText actor is meant as a replacement for both ClutterLabel
and ClutterText.

Any text-displaying and editing actor should derive from ClutterText
and implement the various visual cues to differentiate the editable
from the non-editable state. Those visual cues usually belong to
a high-level toolkit, especially if themeing is involved.
2008-12-11 11:12:48 +00:00
Emmanuele Bassi
8a537b6299 2008-12-08 Emmanuele Bassi <ebassi@linux.intel.com>
* clutter/Makefile.am:
	* clutter/clutter.h: Add ClutterBindingPool to the build.

	* clutter/clutter-binding-pool.c:
	* clutter/clutter-binding-pool.h: Add ClutterBindingPool, a data
	structure meant to hold (key symbol, modifiers) pairs and associate
	them to a closure. The ClutterBindingPool can be used to install
	key bindings for actors and then execute closures inside the
	key-press-event signal handlers, removing the need for big
	switch() or if() blocks for each key.

	* clutter/clutter-event.c: Consistently use "key symbol" instead
	of "key value".

	* clutter/clutter-event.h: Add more modifier masks.

	* clutter/clutter-marshal.list:

	* tests/conform/Makefile.am:
	* tests/conform/test-binding-pool.c:
	* tests/conform/test-conform-main.c: Add ClutterBindingPool
	conformance test.

	* tests/interactive/Makefile.am:
	* tests/interactive/test-binding-pool.c: Add interactive test (and
	example code) for the ClutterBindingPool usage.
2008-12-08 13:57:10 +00:00
Neil Roberts
1a63414966 Bug 1252 - Merge ClutterBehaviourPath and ClutterBehaviourBspline
* clutter/clutter-path.h:
	* clutter/clutter-path.c: Implementation of new ClutterPath object
	to represent a path combining straight line and bezier curve
	elements.

	* clutter/clutter.h: Include clutter-path.h and remove
	clutter-behaviour-bspline.h

	* tests/interactive/test-threads.c (test_threads_main):
	* tests/interactive/test-script.c:
	* tests/interactive/test-behave.c (test_behave_main): Use new path
	API

	* clutter/clutter-effect.c: Use the new ClutterBehaviourPath API.

	* clutter/clutter-bezier.h:
	* clutter/clutter-bezier.c: Moved bezier curve handling code out
	from clutter-behaviour-bspline.c to a separate file.

	* clutter/clutter-behaviour-path.h:
	* clutter/clutter-behaviour-path.c: Reimplemented to work with a
	ClutterPath

	* clutter/clutter-behaviour-bspline.h:
	* clutter/clutter-behaviour-bspline.c: Removed

	* clutter/Makefile.am: Add clutter-path and clutter-bezier, remove
	clutter-behaviour-bspline.

	* tests/conform/test-path.c: New automatic test for ClutterPath
	consistency

	* tests/conform/test-conform-main.c (main): Add test_path

	* tests/conform/Makefile.am (test_conformance_SOURCES): Add
	test-path.c

	* clutter/clutter-sections.txt: Add ClutterPath docs

	* clutter/clutter.types:
	* clutter/clutter-docs.xml:
	* doc/reference/clutter/clutter-animation-tutorial.xml: Remove
	mention of ClutterBehaviourBspline

	* clutter/clutter-marshal.list: Add VOID:UINT
2008-12-05 13:13:37 +00:00
Neil Roberts
89e7552ca3 Bug 1172 - Disjoint paths and clip to path
* clutter/cogl/cogl-path.h:
	* clutter/cogl/common/cogl-primitives.c:
	* clutter/cogl/common/cogl-primitives.h:
	* clutter/cogl/gl/cogl-primitives.c:
	* clutter/cogl/gles/cogl-primitives.c: Changed the semantics of
	cogl_path_move_to. Previously this always started a new path but
	now it instead starts a new disjoint sub path. The path isn't
	cleared until you call either cogl_path_stroke, cogl_path_fill or
	cogl_path_new. There are also cogl_path_stroke_preserve and
	cogl_path_fill_preserve functions.

	* clutter/cogl/gl/cogl-context.c:
	* clutter/cogl/gl/cogl-context.h:
	* clutter/cogl/gles/cogl-context.c:
	* clutter/cogl/gles/cogl-context.h: Convert the path nodes array
	to a GArray.

	* clutter/cogl/gl/cogl-texture.c:
	* clutter/cogl/gles/cogl-texture.c: Call cogl_clip_ensure

	* clutter/cogl/common/cogl-clip-stack.c:
	* clutter/cogl/common/cogl-clip-stack.h: Simplified the clip
	stack code quite a bit to make it more maintainable.  Previously
	whenever you added a new clip it would go through a separate route
	to immediately intersect with the current clip and when you
	removed it again it would immediately rebuild the entire clip. Now
	when you add or remove a clip it doesn't do anything immediately
	but just sets a dirty flag instead.

	* clutter/cogl/gl/cogl.c:
	* clutter/cogl/gles/cogl.c: Taken away the code to intersect
	stencil clips when there is exactly one stencil bit. It won't work
	with path clips and I don't know of any platform that doesn't have
	eight or zero stencil bits. It needs at least three bits to
	intersect a path with an existing clip. cogl_features_init now
	just decides you don't have a stencil buffer at all if you have
	less than three bits.

	* clutter/cogl/cogl.h.in: New functions and documentation.

	* tests/interactive/test-clip.c: Replaced with a different test
	that lets you add and remove clips. The three different mouse
	buttons add clips in different shapes. This makes it easier to
	test multiple levels of clipping.

	* tests/interactive/test-cogl-primitives.c: Use
	cogl_path_stroke_preserve when using the same path again.

	* doc/reference/cogl/cogl-sections.txt: Document the new
	functions.
2008-12-04 13:45:09 +00:00