Commit Graph

50 Commits

Author SHA1 Message Date
Owen W. Taylor
c3448314d5 Default to a blend function that expects premultiplied colors
Many operations, like mixing two textures together or alpha-blending
onto a destination with alpha, are done most logically if texture data
is in premultiplied form. We also have many sources of premultiplied
texture data, like X pixmaps, FBOs, cairo surfaces. Rather than trying
to work with two different types of texture data, simplify things by
always premultiplying texture data before uploading to GL.

Because the default blend function is changed to accommodate this,
uses of pure-color CoglMaterial need to be adapted to add
premultiplication.

gl/cogl-texture.c gles/cogl-texture.c: Always premultiply
  non-premultiplied texture data before uploading to GL.

cogl-material.c cogl-material.h: Switch the default blend functions
  to ONE, ONE_MINUS_SRC_ALPHA so they work correctly with premultiplied
  data.

cogl.c: Make cogl_set_source_color() premultiply the color.

cogl.h.in color-material.h: Add some documentation about
  premultiplication and its interaction with color values.

cogl-pango-render.c clutter-texture.c tests/interactive/test-cogl-offscreen.c:
  Use premultiplied colors.

http://bugzilla.openedhand.com/show_bug.cgi?id=1406

Signed-off-by: Robert Bragg <robert@linux.intel.com>
2009-06-11 14:17:52 +01:00
Emmanuele Bassi
3248bb1b75 [cogl] Generate enumeration GTypes
COGL is starting to have more enumerations than I can handle
by hand. Let's use glib-mkenums and be done with it.
2009-05-29 12:31:47 +01:00
Emmanuele Bassi
7b75f93db1 [docs] Fixes for the API reference
* Add unused symbols

* Document and sync argument names with their gtk-doc counterpart

* Add missing descriptions
2009-05-28 17:18:13 +01:00
Emmanuele Bassi
7252c14197 [cogl] Make cogl_setup_viewport() a private function
The setup_viewport() function should only be used by Clutter and
not by application code.

It can be emulated by changing the Stage size and perspective and
requeueing a redraw after calling clutter_stage_ensure_viewport().
2009-05-28 14:14:50 +01:00
Robert Bragg
605243d952 [cogl] renamed cogl_enable_* to cogl_set_*_enabled + added getters
cogl_enable_depth_test and cogl_enable_backface_culling have been renamed
and now have corresponding getters, the new functions are:
  cogl_set_depth_test_enabled
  cogl_get_depth_test_enabled
  cogl_set_backface_culling_enabled
  cogl_get_backface_culling_enabled
2009-05-28 02:43:36 +01:00
Robert Bragg
96188bab62 [cogl matrix] Support ortho and perspective projections.
This adds cogl_matrix api for multiplying matrices either by a perspective
or ortho projective transform.  The internal matrix stack and current-matrix
APIs also have corresponding support added.

New public API:
cogl_matrix_perspective
cogl_matrix_ortho
cogl_ortho
cogl_set_modelview_matrix
cogl_set_projection_matrix
2009-05-28 02:43:35 +01:00
Robert Bragg
12c8ff8606 [cogl] Remove cogl_{create,destroy}_context from the public API
cogl_create_context is dealt with internally when _cogl_get_default context
is called, and cogl_destroy_context is currently never called.

It might be nicer later to get an object back when creating a context so
Cogl can support multiple contexts, so these functions are being removed
from the API until we get a chance to address context management properly.

For now cogl_destroy_context is still exported as _cogl_destroy_context so
Clutter could at least install a library deinit handler to call it.
2009-05-28 02:43:35 +01:00
Robert Bragg
68214fe4b8 [cogl] Remove cogl_flush_gl_state from the API
This is being removed before we release Clutter 1.0 since the implementation
wasn't complete, and so we assume no one is using this yet.  Util we have
someone with a good usecase, we can't pretend to support breaking out into
raw OpenGL.
2009-05-28 02:43:34 +01:00
Neil Roberts
f13c3ee309 Make backface culling work with vertex buffers
Backface culling is enabled as part of cogl_enable so the different
rendering functions in Cogl need to explicitly opt-in to have backface
culling enabled. Cogl vertex buffers should allow backface culling so
they should check whether it is enabled and then set the appropriate
cogl_enable flag.
2009-05-21 14:57:07 +01:00
Robert Bragg
e80fcbc298 [cogl-clip-stack] Support pushing rectangles onto the stack using window coords
Previously clipping could only be specified in object coordinates, now
rectangles can also be pushed in window coordinates.

Internally rectangles pushed this way are intersected and then clipped using
scissoring.  We also transparently try to convert rectangles pushed in
object coordinates into window coordinates as we anticipate the scissoring
path will be faster then the clip planes and undoubtably it will be faster
than using the stencil buffer.
2009-05-12 15:44:33 +01:00
Robert Bragg
a5cdfdfd87 [cogl-offscreen] Cleans up the cogl offscreen API and adds documentation
There were several functions I believe no one is currently using that were
only implemented in the GL backend (cogl_offscreen_blit_region and
cogl_offscreen_blit) that have simply been removed so we have a chance to
think about design later with a real use case.

There was one nonsense function (cogl_offscreen_new_multisample) that
sounded exciting but in all cases it just returned COGL_INVALID_HANDLE
(though at least for GL it checked for multisampling support first!?)
it has also been removed.

The MASK draw buffer type has been removed. If we want to expose color
masking later then I think it at least would be nicer to have the mask be a
property that can be set on any draw buffer.

The cogl_draw_buffer and cogl_{push,pop}_draw_buffer function prototypes
have been moved up into cogl.h since they are for managing global Cogl state
and not for modifying or creating the actual offscreen buffers.

This also documents the API so for example desiphering the semantics of
cogl_offscreen_new_to_texture() should be a bit easier now.
2009-05-02 04:12:26 +01:00
Robert Bragg
d5fc61102f [cogl] Only expose CoglBitmap as a CoglHandle
It was inconsistent that we exposed the CoglBitmap struct instead of an
opaque CoglHandle.
2009-05-02 04:12:26 +01:00
Robert Bragg
f85377372c [cogl] Updates all file headers and removes lots of trailing white space
Adds missing notices, and ensures all the notices are consistent. The Cogl
blurb also now reads:

 * Cogl
 *
 * An object oriented GL/GLES Abstraction/Utility Layer
2009-05-02 04:12:25 +01:00
Robert Bragg
741c4bb5e9 [cogl] Adds a bitfield argument to cogl_clear for specifying which buffers to clear
Redundant clearing of depth and stencil buffers every render can be very
expensive, so cogl now gives control over which auxiliary buffers are
cleared.

Note: For now clutter continues to clear the color, depth and stencil buffer
each paint.
2009-05-02 04:12:12 +01:00
Havoc Pennington
08932584b5 Virtualize GL matrix operations and use a client-side matrix when GL is indirect
This is useful because sometimes we need to get the current matrix, which
is too expensive when indirect rendering.

In addition, this virtualization makes it easier to clean up the API in
the future.
2009-03-12 18:32:45 +00:00
Emmanuele Bassi
9911033505 [cogl-fixed] Implement the CoglFixed fundamental GType
The type machinery for CoglFixed should be implemented by COGL
itself, now that COGL exports the GType of its types.

This allows moving most of what ClutterFixed did directly to
CoglFixed where it belongs.
2009-03-10 12:38:03 +00:00
Emmanuele Bassi
605dfb8fd0 Add runtime debug messages for COGL
Clutter is able to show debug messages written using the CLUTTER_NOTE()
macro at runtime, either by using an environment variable:

  CLUTTER_DEBUG=...

or by using a command line switch:

  --clutter-debug=...
  --clutter-no-debug=...

Both are parsed during the initialization process by using the
GOption API.

COGL would benefit from having the same support.

In order to do this, we need a cogl_get_option_group() function in
COGL that sets up a GOptionGroup for COGL and adds a pre-parse hook
that will check the COGL_DEBUG environment variable. The OptionGroup
will also install two command line switches:

  --cogl-debug
  --cogl-no-debug

With the same semantics of the Clutter ones.

During Clutter initialization, the COGL option group will be attached
to the GOptionContext used to parse the command line options passed
to a Clutter application.

Every debug message written using:

  COGL_NOTE (SECTION, "message format", arguments);

Will then be printed only if SECTION was enabled at runtime.

This whole machinery, like the equivalent one in Clutter, depends on
a compile time switch, COGL_ENABLE_DEBUG, which is enabled at the same
time as CLUTTER_ENABLE_DEBUG. Having two different symbols allows
greater granularity.
2009-02-23 13:00:52 +00:00
Robert Bragg
34e53736ed [Cogl] the cogl_get_*_matrix functions now work with CoglMatrix types
Since the CoglMatrix type was added for supporting texture matrices recently
it made sense to be consistent accross the Cogl API and use the Cogl type
over the GL style GLfloat m[16] arrays.
2009-02-23 10:49:35 +00:00
Robert Bragg
03018f0c2a [Cogl] Renames cogl_paint_init to cogl_clear and adds a cogl_disable_fog function
cogl_paint_init was a bit too miscellaneous; it mainly cleared the color, depth
and stencil buffers but arbitrarily it also disabled fogging and lighting.

It no longer disables lighting, since we know Cogl never enables lighting and
disabling of fog is now handled with a seperate function.

Since I noticed cogl_set_fog was taking a density argument documented as
"Ignored" I've also added a mode argument to cogl_set_fog which exposes the
exponential fog modes which can make use of the density.
2009-02-18 16:00:52 +00:00
Robert Bragg
2b5a72dde5 [Cogl] cogl_clip_{set*,unset} renamed to cogl_clip_{push*,pop}
This is so they self document the stacking semantics of the cogl clip API
2009-02-18 16:00:51 +00:00
Robert Bragg
b4f9c8204d [docs] Various gtk-doc updates for Cogl
This hides a number of internal structs and enums from the docs, and moves
some functions to more appropriate sections as well as misc description
updates (mostly for the vertex buffer api)
2009-02-09 14:33:14 +00:00
Robert Bragg
fa55c096d8 [Cogl] Renames cogl_fog_set to cogl_set_fog for consistency
More things follow the <object>_set_<property> convention.
2009-02-09 14:15:06 +00:00
Robert Bragg
70d7d16f13 Support scaling on the z axis with cogl_scale
This simply adds a z argument to cogl_scale and updates clutter-actor.c
to pass 1.0 for the z scale.
2009-01-27 15:20:13 +00:00
Robert Bragg
427fff032e Removes cogl_blend_func and cogl_alpha_func
The GL blend function and alpha function are now controlled by the material
code, and even internally Cogl should now be using the material API when
it needs control of these.
2009-01-27 14:26:49 +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
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
Robert Bragg
e338245827 Renames the mesh api to the "vertex buffer api".
This better reflects the fact that the api manages sets of vertex attributes,
and the attributes really have no implied form. It is only when you use the
attributes to draw that they become mesh like; when you specify how they should
be interpreted, e.g. as triangle lists or fans etc. This rename frees up the
term "mesh", which can later be applied to a concept slightly more fitting.
E.g. at some point it would be nice to have a higher level abstraction that
sits on top of cogl vertex buffers that adds the concept of faces. (Somthing
like Blender's mesh objects.) There have also been some discussions over
particle engines, and these can be defined in terms of emitter faces; so some
other kind of mesh abstraction might be usefull here.
2009-01-20 22:29:35 +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
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
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
Emmanuele Bassi
c823bf9c83 2008-11-12 Emmanuele Bassi <ebassi@linux.intel.com>
* clutter/cogl/cogl-color.h:
	* clutter/cogl/cogl-path.h:
	* clutter/cogl/cogl-types.h:
	* clutter/cogl/common/cogl-color.c: Deprecated cogl_color()
	in favour of cogl_set_source_color() and friends; store the
	CoglColor components as unsigned bytes instead of fixed point
	normalized values; add functions for allocating, copying and
	freeing CoglColor, for use of language bindings.

	* clutter/cogl/cogl.h.in:
	* clutter/cogl/cogl-deprecated.h: Added cogl-deprecated.h,
	an header file containing the deprecation symbols similar
	to clutter-deprecated.h.

	* clutter/cogl/gl/Makefile.am:
	* clutter/cogl/gl/cogl-texture.c:
	* clutter/cogl/gl/cogl.c:
	* clutter/cogl/gles/Makefile.am:
	* clutter/cogl/gles/cogl-texture.c:
	* clutter/cogl/gles/cogl.c: Update the GL and GLES implementations
	of COGL after the CoglColor changes.

	* clutter/clutter-actor.c:
	* clutter/clutter-clone-texture.c:
	* clutter/clutter-entry.c:
	* clutter/clutter-label.c:
	* clutter/clutter-rectangle.c:
	* clutter/clutter-texture.c: Do not use CoglColor whenever it
	is possible, and use cogl_set_source_color4ub() instead.

	* clutter/pango/cogl-pango-render.c: Ditto as above.

	* doc/reference/clutter/subclassing-ClutterActor.xml:
	* doc/reference/cogl/cogl-sections.txt: Update the documentation.

	* tests/interactive/test-cogl-offscreen.c:
	* tests/interactive/test-cogl-primitives.c:
	* tests/interactive/test-cogl-tex-convert.c:
	* tests/interactive/test-cogl-tex-foreign.c:
	* tests/interactive/test-cogl-tex-getset.c:
	* tests/interactive/test-cogl-tex-polygon.c:
	* tests/interactive/test-cogl-tex-tile.c:
	* tests/interactive/test-paint-wrapper.c: Drop the usage of
	CoglColor whenever it is possible.
2008-11-12 13:57:58 +00:00
Robert Bragg
16897e0729 Bug 1164 - Implements the proposed Mesh API
* clutter/cogl/cogl-mesh.h
	* clutter/cogl/cogl-types.h
	* clutter/cogl/cogl.h.in
	* clutter/cogl/common/Makefile.am
	* clutter/cogl/common/cogl-mesh-private.h
	* clutter/cogl/common/cogl-mesh.c
	* clutter/cogl/gl/cogl-context.c
	* clutter/cogl/gl/cogl-context.h
	* clutter/cogl/gl/cogl-defines.h.in
	* clutter/cogl/gl/cogl.c
	* clutter/cogl/gles/cogl-context.c
	* clutter/cogl/gles/cogl-context.h
	* doc/reference/cogl/cogl-docs.sgml
	* doc/reference/cogl/cogl-sections.txt:
	The Mesh API provides a means for submitting an extensible number of
	per vertex attributes to OpenGL in a way that doesn't require format
	conversions and so that the data can be mapped into the GPU (in vertex
	buffer objects) for - hopefully - fast re-use.

	There are a number of things we can potentially use this API for, but
	right now this just provides a foundation to build on. Please read
	the extensive list of TODO items in cogl-mesh.c for examples.

	Please refer to the cogl-mesh section in the reference manual for
	documentation of the API.

	* tests/conform/Makefile.am
	* tests/conform/test-conform-main.c
	* tests/conform/test-mesh-contiguous.c
	* tests/conform/test-mesh-interleved.c
	* tests/conform/test-mesh-mutability.c:
	Privides basic coverage testing for the mesh API.
2008-11-10 18:53:14 +00:00
Emmanuele Bassi
90f4b1d492 2008-10-30 Emmanuele Bassi <ebassi@linux.intel.com>
Bug 1219 - Clean up cogl.h

	* clutter/cogl/cogl.h.in:
	* clutter/cogl/cogl-offscreen.h:
	* clutter/cogl/cogl-path.h:
	* clutter/cogl/cogl-shader.h:
	* clutter/cogl/cogl-texture.h:
	* clutter/cogl/cogl-types.h: Split up the massive cogl.h file
	into sub-header for each section of the API.

	* clutter/cogl/gl/*:
	* clutter/cogl/gles/*: Update the GL and GLES implementations
	of COGL to cope with the new header structure.

	* doc/reference/cogl/Makefile.am: Fix symbol retrieval.
2008-10-30 17:25:00 +00:00
Emmanuele Bassi
a32eca26b6 2008-10-30 Emmanuele Bassi <ebassi@linux.intel.com>
Bug 1212 - Allow only a single include file for Clutter

	* clutter/*.h: Only allow including clutter.h in third
	party code.

	* clutter/cogl/cogl-color.h:
	* clutter/cogl/cogl-fixed.h:
	* clutter/cogl/cogl.h.in: Only allow including cogl.h in
	third party code.

	* clutter/cogl/common/Makefile.am:
	* clutter/cogl/gl/Makefile.am:
	* clutter/cogl/gles/Makefile.am:
	* clutter/eglnative/Makefile.am:
	* clutter/eglx/Makefile.am:
	* clutter/fruity/Makefile.am:
	* clutter/glx/Makefile.am:
	* clutter/glx/clutter-glx.h:
	* clutter/osx/Makefile.am:
	* clutter/pango/Makefile.am:
	* clutter/sdl/Makefile.am:
	* clutter/win32/Makefile.am:
	* clutter/x11/Makefile.am: Fix build environment.

	* clutter/x11/clutter-x11-texture-pixmap.h:
	* clutter/x11/clutter-x11.h: Fix inclusion rules.

	* tests/test-pixmap.c: Fix inclusion of GdkPixbuf header.

	* README: Update release notes.
2008-10-30 17:04:34 +00:00
Emmanuele Bassi
36e30239af 2008-10-30 Emmanuele Bassi <ebassi@linux.intel.com>
Bug 1211 - Drop ClutterFeatureFlags usage from COGL

	* clutter/cogl/cogl.h.in:
	* clutter/cogl/gl/cogl.c:
	* clutter/cogl/gles/cogl.c: Do not use ClutterFeatureFlags
	when CoglFeatureFlags will do. This removes the last usage
	of Clutter API inside COGL.
2008-10-30 16:52:56 +00:00
Emmanuele Bassi
a547cdbc4d 2008-10-30 Emmanuele Bassi <ebassi@linux.intel.com>
Bug 1210 - Add CoglColor API

	* clutter/cogl/cogl-color.h:
	* clutter/cogl/cogl.h.in:
	* clutter/cogl/common/Makefile.am:
	* clutter/cogl/common/cogl-color.c:
	* clutter/cogl/gl/Makefile.am:
	* clutter/cogl/gl/cogl.c:
	* clutter/cogl/gles/Makefile.am:
	* clutter/cogl/gles/cogl-texture.c:
	* clutter/cogl/gles/cogl.c: Add a new color-type, to be used by
	COGL. CoglColor is optimized to allow the minimum amount of
	conversions possible for both GL and GLES implementations.

	* clutter/clutter-actor.c:
	* clutter/clutter-clone-texture.c:
	* clutter/clutter-entry.c:
	* clutter/clutter-main.c:
	* clutter/clutter-rectangle.c:
	* clutter/clutter-stage.c:
	* clutter/clutter-texture.c: Use CoglColor when needed.

	* clutter/pango/pangoclutter-render.c: Use CoglColor when needed.

	* doc/reference/cogl/cogl-docs.sgml:
	* doc/reference/cogl/cogl-sections.txt: Update the documentation.

	* tests/test-cogl-offscreen.c:
	* tests/test-cogl-primitives.c:
	* tests/test-cogl-tex-convert.c:
	* tests/test-cogl-tex-foreign.c:
	* tests/test-cogl-tex-getset.c:
	* tests/test-cogl-tex-polygon.c:
	* tests/test-cogl-tex-tile.c:
	* tests/test-paint-wrapper.c: Update the tests.

	* README: Update release notes.
2008-10-30 16:50:07 +00:00
Emmanuele Bassi
911b395c8a 2008-10-30 Emmanuele Bassi <ebassi@linux.intel.com>
Bug 1209 - Move fixed point API in COGL

	* clutter/cogl/cogl-fixed.h:
	* clutter/cogl/cogl.h.in:
	* clutter/cogl/common/Makefile.am:
	* clutter/cogl/common/cogl-fixed.c: Add fixed point API, modelled
	after the ClutterFixed. The CoglFixed API supercedes the ClutterFixed
	one and avoids the dependency of COGL on Clutter's own API.

	* clutter/cogl/common/cogl-clip-stack.c:
	* clutter/cogl/common/cogl-primitives.c:
	* clutter/cogl/common/cogl-primitives.h: Update internal usage of
	ClutterFixed to CoglFixed.

	* clutter/cogl/gl/Makefile.am:
	* clutter/cogl/gl/cogl-primitives.c:
	* clutter/cogl/gl/cogl-texture.c:
	* clutter/cogl/gl/cogl.c: Ditto, in the GL implementation of the
	COGL API.

	* clutter/cogl/gles/Makefile.am:
	* clutter/cogl/gles/cogl-fbo.c:
	* clutter/cogl/gles/cogl-gles2-wrapper.c:
	* clutter/cogl/gles/cogl-primitives.c:
	* clutter/cogl/gles/cogl-texture.c:
	* clutter/cogl/gles/cogl.c: Ditto, in the GLES implementation of
	the COGL API.

	* clutter/pango/pangoclutter-glyph-cache.c:
	* clutter/pango/pangoclutter-glyph-cache.h: Ditto, in the Pango
	renderer glyphs cache.

	* clutter/clutter-fixed.c:
	* clutter/clutter-fixed.h: ClutterFixed and related API becomes
	a simple transition API for bindings and public Clutter API.

	* clutter/clutter-actor.c:
	* clutter/clutter-alpha.c:
	* clutter/clutter-backend.c:
	* clutter/clutter-behaviour-depth.c:
	* clutter/clutter-behaviour-ellipse.c:
	* clutter/clutter-behaviour-path.c:
	* clutter/clutter-behaviour-rotate.c:
	* clutter/clutter-behaviour-scale.c:
	* clutter/clutter-clone-texture.c:
	* clutter/clutter-color.c:
	* clutter/clutter-entry.c:
	* clutter/clutter-stage.c:
	* clutter/clutter-texture.c:
	* clutter/clutter-timeline.c:
	* clutter/clutter-units.h: Move from the internal usage of
	ClutterFixed to CoglFixed.

	* doc/reference/clutter/clutter-sections.txt:
	* doc/reference/cogl/cogl-docs.sgml:
	* doc/reference/cogl/cogl-sections.txt: Update the documentation.

	* tests/test-cogl-tex-tile.c:
	* tests/test-project.c: Fix tests after the API change

	* README: Add release notes.
2008-10-30 16:37:55 +00:00
Neil Roberts
82d43ffe64 Bug 1189 - Backface culling
* clutter/cogl/gl/cogl-texture.c (cogl_texture_polygon)
	(_cogl_texture_quad_sw, _cogl_texture_quad_hw):
	* clutter/cogl/gles/cogl-texture.c (cogl_texture_polygon)
	(_cogl_texture_quad_sw, _cogl_texture_quad_hw): Enable backface
	culling in GL if it is requested.

	* clutter/cogl/gles/cogl-texture.c (_cogl_texture_quad_sw)
	(_cogl_texture_quad_hw):
	* clutter/cogl/gl/cogl-texture.c (_cogl_texture_quad_sw)
	(_cogl_texture_quad_hw): Reorder the
	vertices so that they are counter-clockwise.

	* clutter/cogl/gles/cogl-context.h (CoglContext): 
	* clutter/cogl/gl/cogl-context.h (CoglContext): Added a flag to
	store whether backface culling is currently enabled.

	* clutter/cogl/gles/cogl.c (cogl_enable_backface_culling): 
	* clutter/cogl/gl/cogl.c (cogl_enable_backface_culling): New
	function

	* doc/reference/cogl/cogl-sections.txt: Add
	cogl_enable_backface_culling
2008-10-27 14:36:52 +00:00
Neil Roberts
db4c5e2829 Bug 945 - Clipping+fbo cloning bugs
* clutter/cogl/gl/cogl.c: 
	* clutter/cogl/gles/cogl.c: 
	* clutter/cogl/cogl.h.in: Add cogl_clip_stack_save,
	cogl_clip_stack_restore, cogl_viewport and cogl_frustum.

	* clutter/cogl/gl/cogl-fbo.h: 
	* clutter/cogl/gl/cogl-fbo.c: Try to attach a stencil buffer when
	creating an FBO.

	* clutter/cogl/common/cogl-clip-stack.c: Add functions to save and
	restore the whole state of the stack.

	* clutter/clutter-texture.c (clutter_texture_paint): When
	rendering the FBO source, setup a temporary asymmetric perspective
	projection matrix to render it as it would appear on screen.

	* clutter/clutter-private.h: 
	* clutter/clutter-actor.c
	(_clutter_actor_apply_modelview_transform_recursive): No longer
	static and exported in clutter-private.h
2008-08-01 12:23:57 +00:00
Emmanuele Bassi
a4c4e3464d 2008-06-12 Emmanuele Bassi <ebassi@openedhand.com>
* doc/reference/cogl/Makefile.am: Ignore cogl/gl and cogl/gles
	when building the documentation.

	* clutter/cogl/cogl.h.in: Add sections in the header file.
2008-06-12 17:21:16 +00:00
Ivan Leben
ef084cfa95 * clutter/cogl/cogl.h.in:
* clutter/cogl/gl(es)/cogl-texture.h:
	* clutter/cogl/gl(es)/cogl-texture.c:
	cogl_texture_new_* functions take a gboolean auto_mipmap argument.
	If TRUE automatic mipmap generation is enabled during the process
	of slice texture object creation.
	(cogl_texture_new_from_foreign:) now allows mipmap min filter
	flags.

	* clutter/clutter-texture.c:
	* clutter/glx/clutter-glx-texture-pixmap.c:
	* tests/test-cogl-offscreen.c:
	* tests/test-cogl-tex-tile.c:
	* tests/test-cogl-tex-convert.c:
	* tests/test-cogl-tex-polygon.c:
	* tests/test-cogl-tex-getset.c:
	Pass FALSE for auto_mipmap to cogl_texture_new_*.

	* clutter/pango/pangoclutter-render.c:
	(tc_get:) Pass TRUE to cogl_texture_new_with_size and use mipmap
	min filter for nicer glyphs at small scales. As a result test-text
	has gone all beautiful now.
2008-05-07 16:12:54 +00:00
Øyvind Kolås
0e6ad06db4 * clutter/cogl/cogl.h.in: api review touch ups.
* clutter/cogl/common/cogl-primitives.c: api review touch ups.
* clutter/cogl/gl/cogl-primitives.c: (cogl_path_fill),
(cogl_path_stroke): indentation.
* clutter/cogl/gles/cogl-primitives.c:
(_cogl_path_fill_nodes): free allocated resources.
* tests/test-cogl-primitives.c: updated to new API, added rotation to
test to show that cogl renders paths correct under perspective
distortion.
2008-05-05 10:25:11 +00:00
Neil Roberts
19058afe82 Removed COGLhandle and changed shader and program functions to be
wrapped in reference-counted CoglHandles instead.

	* clutter/cogl/gl/cogl-shader.c: 
	* clutter/cogl/gl/cogl-shader.h: 
	* clutter/cogl/gl/cogl-program.c: 
	* clutter/cogl/gl/cogl-program.h: 
	New files to hold the shader and program functions.

	* clutter/cogl/gl/cogl.c: Removed shader and program functions.

	* clutter/cogl/common/cogl-handle.h: New header to define
	COGL_HANDLE_DEFINE which helps build functions to create
	reference-counted handles. This reduces the amount of duplicated
	code.

	* clutter/cogl/gl/cogl-texture.c: 
	* clutter/cogl/gles/cogl-texture.c: 
	* clutter/cogl/gl/cogl-fbo.c: Converted to use COGL_HANDLE_DEFINE
	from cogl-handle.h to avoid duplicating some of the common code.

	* clutter/cogl/gles/cogl-defines.h.in: 
	* clutter/cogl/gl/cogl-defines.h.in: Removed COGLhandle

	* clutter/cogl/gl/cogl-context.h: Added handle arrays for programs
	and shaders.

	* clutter/cogl/gl/cogl-context.c (cogl_create_context): Added
	initialisers for shader_handles and program_handles.
	(cogl_destroy_context): Added calls to g_array_free for all handle
	arrays.

	* clutter/cogl/gl/Makefile.am (libclutter_cogl_la_SOURCES): Added
	cogl-{program,shader}.{c,h}

	* clutter/cogl/common/Makefile.am
	(libclutter_cogl_common_la_SOURCES): Added cogl-handle.h

	* clutter/cogl/gles/cogl.c:
	* clutter/cogl/cogl.h.in: Programs and shaders are now wrapped in
	CoglHandles instead of COGLhandles. cogl_program_destroy and
	cogl_shader_destroy is now replaced with cogl_program_unref and
	cogl_shader_unref. cogl_program_ref and cogl_shader_ref are also
	added.

	* clutter/clutter-shader.c: Converted to use CoglHandles for the
	programs and shaders instead of COGLhandles.

	* cogl/cogl-sections.txt: Added cogl_shader_ref,
	cogl_shader_unref, cogl_is_shader, cogl_program_ref,
	cogl_program_unref, cogl_is_program and cogl_is_offscreen.
2008-04-29 16:10:37 +00:00
Øyvind Kolås
83e2861614 * clutter/cogl/cogl.h.in: renaming of API's in cogl to make the
primitives and path API a bit smaller and more resembling cairo.
* clutter/cogl/gl/cogl-primitives.c:
* clutter/cogl/gles/cogl-primitives.c:
* clutter/cogl/gles/cogl.c:
* clutter/clutter-actor.c:
* clutter/clutter-rectangle.c:
* tests/test-cogl-offscreen.c:
* tests/test-cogl-primitives.c:
* tests/test-cogl-tex-convert.c:
* tests/test-cogl-tex-foreign.c:
* tests/test-cogl-tex-getset.c:
* tests/test-cogl-tex-tile.c: updated according to changes in cogl.
2008-04-29 15:41:34 +00:00
Neil Roberts
18826f3b04 * clutter/cogl/cogl.h.in (COGL_A_BIT): Added the missing comma after
COGL_PIXEL_FORMAT_G_8
2008-04-28 16:03:06 +00:00
Øyvind Kolås
35e0ae7fa9 * clutter/cogl/cogl.h.in: reindented. 2008-04-28 15:36:11 +00:00
Øyvind Kolås
de5f1e78fb * clutter/cogl/cogl.h.in: moved the documentation of the cogl
primitives to the main public header.
* clutter/cogl/gl/cogl-primitives.c: from here ..
* clutter/cogl/gles/cogl-primitives.c: .. _and_ here.
2008-04-28 14:18:29 +00:00
Øyvind Kolås
aae4c7d0f6 * clutter/cogl/cogl.h.in: added documentation. 2008-04-28 14:00:46 +00:00
Neil Roberts
6409b1adeb Merged clutter-ivan branch into trunk.
svn merge \
 https://svn.o-hand.com/repos/clutter/trunk/clutter@2509 \
 https://svn.o-hand.com/repos/clutter/branches/clutter-ivan@HEAD
2008-04-25 13:37:36 +00:00