Commit Graph

66 Commits

Author SHA1 Message Date
Robert Bragg
a9b011f3ed [premultiplication] Be more conservative with what data gets premultiplied
We don't want to force texture data to be premultipled if the user
explicitly specifies a non premultiplied internal_format such as
COGL_PIXEL_FORMAT_RGBA_8888.  So now Cogl will only automatically
premultiply data when COGL_PIXEL_FORMAT_ANY is given for the
internal_format, or a premultiplied internal format such as
COGL_PIXEL_FORMAT_RGBA_8888_PRE is requested but non-premultiplied source
data is given.

This approach is consistent with OpenVG image formats which have already
influenced Cogl's pixel format semantics.
2009-06-11 14:17:53 +01:00
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
Neil Roberts
4b125d7fde [CoglTexture] Initialise tex->first_pixels to NULL in all constructors
Otherwise if there is an error before the slices are created it will
try to free the first_pixels array and crash.

It now also checks whether first_pixels has been created before using
it to update the mipmaps. This should only happen for
cogl_texture_new_from_foreign and doesn't matter if the FBO extension
is available. It would be better in this case to fetch the first pixel
using glGetTexImage as Owen mentioned in the last commit.
2009-06-09 11:13:11 +01:00
Owen W. Taylor
1d7a7bf1e6 Fix unitialized first_pixels for foreign textures
tex->first_pixels was never set for foreign textures, leading
to a crash when the texture object is freed.

As a quick fix, simply set to NULL. A more complete fix would
require remembering if we had ever seen the first pixel uploaded,
and if not, doing a glReadPixel to get it before triggering the
mipmap update.

http://bugzilla.openedhand.com/show_bug.cgi?id=1645

Signed-off-by: Neil Roberts <neil@linux.intel.com>
2009-06-09 10:54:54 +01:00
Neil Roberts
6efbb92c58 Update the GLES backend to have the layer filters in the material
This reflects the changes made in 54d8aadf1d for the GLES backend.
2009-06-04 22:12:33 +01:00
Robert Bragg
33994caa71 [cogl-material] Support string based blending and layer combine descriptions
Setting up layer combine functions and blend modes is very awkward to do
programatically.  This adds a parser for string based descriptions which are
more consise and readable.

E.g. a material layer combine function could now be given as:
  "RGBA = ADD (TEXTURE[A], PREVIOUS[RGB])"
or
  "RGB = REPLACE (PREVIOUS)"
  "A = MODULATE (PREVIOUS, TEXTURE)"

The simple syntax and grammar are only designed to expose standard fixed
function hardware, more advanced combining must be done with shaders.

This includes standalone documentation of blend strings covering the aspects
that are common to blending and texture combining, and adds documentation
with examples specific to the new cogl_material_set_blend() and
cogl_material_layer_set_combine() functions.

Note: The hope is to remove the now redundant bits of the material API
before 1.0
2009-05-28 02:43:28 +01:00
Emmanuele Bassi
71498a6376 [cogl] Remove max_waste argument from Texture ctors
The CoglTexture constructors expose the "max-waste" argument for
controlling the maximum amount of wasted areas for slicing or,
if set to -1, disables slicing.

Slicing is really relevant only for large images that are never
repeated, so it's a useful feature only in controlled use cases.
Specifying the amount of wasted area is, on the other hand, just
a way to mess up this feature; 99% the times, you either pull this
number out of thin air, hoping it's right, or you try to do the
right thing and you choose the wrong number anyway.

Instead, we can use the CoglTextureFlags to control whether the
texture should not be sliced (useful for Clutter-GST and for the
texture-from-pixmap actors) and provide a reasonable value for
enabling the slicing ourself. At some point, we might even
provide a way to change the default at compile time or at run time,
for particular platforms.

Since max_waste is gone, the :tile-waste property of ClutterTexture
becomes read-only, and it proxies the cogl_texture_get_max_waste()
function.

Inside Clutter, the only cases where the max_waste argument was
not set to -1 are in the Pango glyph cache (which is a POT texture
anyway) and inside the test cases where we want to force slicing;
for the latter we can create larger textures that will be bigger than
the threshold we set.

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
Signed-off-by: Robert Bragg <robert@linux.intel.com>
Signed-off-by: Neil Roberts <neil@linux.intel.com>
2009-05-23 19:35:19 +01:00
Emmanuele Bassi
df1a9b7a74 [cogl] Rework the debug messages
COGL has a debug message system like Clutter's own. In parallel,
it also uses a coupld of #defines. Spread around there are also
calls to printf() instead to the more correct g_log* wrappers.

This commit tries to unify and clean up the macros and the
debug message handling inside COGL to be more consistent.
2009-05-19 14:44:29 +01:00
Robert Bragg
36cfb60307 [cogl] Remove the COGL{enum,int,uint} typedefs
COGLenum, COGLint and COGLuint which were simply typedefs for GL{enum,int,uint}
have been removed from the API and replaced with specialised enum typedefs, int
and unsigned int. These were causing problems for generating bindings and also
considered poor style.

The cogl texture filter defines CGL_NEAREST and CGL_LINEAR etc are now replaced
by a namespaced typedef 'CoglTextureFilter' so they should be replaced with
COGL_TEXTURE_FILTER_NEAREST and COGL_TEXTURE_FILTER_LINEAR etc.

The shader type defines CGL_VERTEX_SHADER and CGL_FRAGMENT_SHADER are handled by
a CoglShaderType typedef and should be replaced with COGL_SHADER_TYPE_VERTEX and
COGL_SHADER_TYPE_FRAGMENT.

cogl_shader_get_parameteriv has been replaced by cogl_shader_get_type and
cogl_shader_is_compiled. More getters can be added later if desired.
2009-05-12 14:53:44 +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
c3d9f0bed4 [cogl-handle] Optimize how we define cogl handles
The cogl_is_* functions were showing up quite high on profiles due to
iterating through arrays of cogl handles.

This does away with all the handle arrays and implements a simple struct
inheritance scheme. All cogl objects now add a CoglHandleObject _parent;
member to their main structures. The base object includes 2 members a.t.m; a
ref_count, and a klass pointer. The klass in turn gives you a type and
virtual function for freeing objects of that type.

Each handle type has a _cogl_##handle_type##_get_type () function
automatically defined which returns a GQuark of the handle type, so now
implementing the cogl_is_* funcs is just a case of comparing with
obj->klass->type.

Another outcome of the re-work is that cogl_handle_{ref,unref} are also much
more efficient, and no longer need extending for each handle type added to
cogl. The cogl_##handle_type##_{ref,unref} functions are now deprecated and
are no longer used internally to Clutter or Cogl. Potentially we can remove
them completely before 1.0.
2009-04-02 11:58:43 +01:00
Robert Bragg
891ed53564 [cogl] Move rect and poly drawing code from cogl-texture.c to cogl-primitives.c
None of this code directly related to implementing CoglTextures, and the
code was needlessly duplicated between the GL and GLES backends. This moves
the cogl_rectangle* and cogl_polygon* code into common/cogl-primitives.c
makes which makes lot of sense since the two copies keep needlessly
diverging introducing or fixing bugs in one but not the other. For instance
I came accross one such bug regarding the enabling of texture units when
unifying the code.
2009-03-23 16:32:07 +00:00
Robert Bragg
b30bb575a1 [cogl_rectangles] A minor doc fix, and missing newline between functions
The gtk-doc had a copy and paste error, saying the float array should be 8
elements per rectangle instead of 4. There was also no newline in the gles
code before the new function.
2009-03-23 12:41:42 +00:00
Johan Bilien
13e5bd9e8b Allow using array of vertices even without textures
It's often nice to be able to draw a batch of vertices, even if these
have no texture coordinates. This add a cogl_rectangles, similar to
cogl_rectangles_with_texture_coords, only without.
2009-03-23 12:41:41 +00:00
Robert Bragg
ca3bfe2cea [cogl] Don't endlessly print the same warning regarding layer fallbacks
There are various constraints for when we can support multi-texturing and
when they can't be met we try and print a clear warning explaining why the
operation isn't supported, but we shouldn't endlessly repeat the warning for
every primitive of every frame. This patch fixes that.
2009-03-16 16:19:51 +00:00
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
Neil Roberts
9e10dc402f Call glActiveTexture and glClientActiveTexture through cogl_get_proc_address
All GL functions that are defined in a version later than 1.1 need to
be called through cogl_get_proc_address because the Windows GL DLL
does not export them to directly link against.
2009-02-16 12:46:36 +00:00
Neil Roberts
05c7e5a97c [cogl-texture] Fix offset to next quad when flushing the log
When the quad log contains multiple textures (such as when a sliced
texture is drawn) it dispatches the log with multiple calls to
flush_quad_batch and walks a pointer along the list of vertices.
However this pointer was being incremented by only one vertex so the
next quad would be drawn with three of the vertices from the last
quad.
2009-02-05 20:29:25 +00:00
Neil Roberts
49359407b0 [cogl-texture] Fix the count for the number of enabled arrays
The quad drawing code keeps track of the number of texture units that
have the tex coord array enabled so that in the next call it can
disabled any that are no longer enabled. However it was using 'i+1' as
the count but 'i' is already set to 'n_layers' from the previous for
loop.

Therefore it was disabling an extra texture unit. This doesn't
normally matter but it was causing GLES 2 to pointlessly realize an
extra unit.
2009-02-02 22:01:47 +00:00
Robert Bragg
6516dd3033 Another Cogl gl vs gles normalizaion pass
This tries to make a number of files more comparable with the intention of
moving some code into cogl/common/

Files normalized:
 cogl.c
 cogl-context.c
 cogl-context.h
 cogl-texture.c
2009-01-28 17:20:16 +00:00
Neil Roberts
d7c275f5e5 [cogl-texture] Fix order of tex coords when compensating for waste
When drawing a texture with waste in _cogl_multitexture_unsliced_quad
it scales the texture coordinates so that the waste is not
included. However the formula was the wrong way around so it was
calculating as if the texture coordinates are ordered x1,x2,y1,y2 but
it is actually x1,y1,x2,y2.
2009-01-28 12:57:06 +00:00
Neil Roberts
e72042648c [cogl-texture] Reset size of vertex log after drawing a polygon
Otherwise trying to render a rectangle after a polygon doesn't work
because it expects the array to be empty when it starts logging
vertices.
2009-01-28 12:24:11 +00:00
Neil Roberts
eda1d08f76 Fix rectangles_with_multitexture_coords for sliced without tex coords
When the texture is sliced it drops back to a fallback function and
passes it the texture coordinates from the rectangle. However if no
tex coords are given it would crash. Now it passes the default
0.0->1.0 tex coords instead.
2009-01-28 12:24:10 +00:00
Neil Roberts
7df1987652 Fix _cogl_texture_unsliced_quad when no texture coordinates are given
If no texture coordinates are given then texture_unsliced_quad tries
to generate its own coordinates. However it also tries to read the
texture coordinates to check if they are in [0.0,1.0] range so it will
crash before it reaches that.
2009-01-28 12:24:10 +00:00
Neil Roberts
2722909b76 Fix building GLES after _cogl_texture_handle_from_pointer got removed
Commit a688b1db removed the function and replaced it with a direct
cast. This was also being used in the GL ES so the build broke.
2009-01-28 10:56:47 +00:00
Robert Bragg
4a7fa6d0fa Updates GLES1 support for CoglMaterial
This updates cogl/gles in line with the integration of CoglMaterial throughout
Cogl that has been done for cogl/gl.

Note: This is still buggy, but at least it builds again and test-actors works.
Some GLES2 specific changes were made, but these haven't been tested yet.
2009-01-27 14:26:50 +00:00
Robert Bragg
60e81f0fda Normalizes gl vs gles code in preperation for synching material changes
This changes all GLES code to use the OpenGL function names instead of
the cogl_wrap_* names. For GLES2 we now define the OpenGL name to point
to the wrapper, as opposed to defining the wrapper to point to the
OpenGL name for GLES1.

I've also done a quick pass through gl/cogl.c and gles/cogl.c to make
them more easily comparable. (most of the code is now identical)
2009-01-27 14:26:50 +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
Neil Roberts
634cdeab1f Fix some failures from the fixed-to-float script in cogl-texture
The script converted calls to COGL_FIXED_MUL(x,y) to (x*y). However
this fails for cases like this:

 COGL_FIXED_MUL(a + b, c)

which become

 (a + b * c)

The meaning of this is of course different because multiplication has
a higher precedence than addition.

This was causing breakages in cogl_texture_quad_sw when the vertex
coordinates are not in increasing order. This was the case in
test-backface-culling when NPOTs are not available.
2009-01-22 17:44:24 +00:00
Emmanuele Bassi
c9739e6aef Change the COGL texture constructor to use flags
Boolean arguments for functions are pretty evil and usually
lead to combinatorial explosion of parameters in case multiple
settings are added.

In the case of the COGL texture constructors we have a boolean
argument for enabling the auto-mipmapping; it is conceivable that
we might want to add more settings for a COGL texture without
breaking API or ABI compatibility, so the boolean argument should
become a bitmask.

The internals have not been changed: instead of checking for
a non-zero value, we check for a bitmask being set.
2009-01-21 10:14:29 +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
Neil Roberts
9339334a43 Fix GLES backends after merging the async-textures branch
The changes from the GL version of cogl-texture.c have been mirrored
in the GLES version. This adds the cogl_texture_new_from_bitmap
function and fixes the build errors.
2009-01-15 18:09:54 +00:00
Neil Roberts
de114dead7 Fix GLES 2 after the multiple-texture-rectangle branch merge
The GLES 2 wrapper needs to set up some state before each
draw. Previously this was acheived by wrapping glDrawArrays. Since the
multiple-texture-rectangle branch merge, glDrawElements is used
instead so we also need a wrapper for that.

It was also directly calling glBindTexture. GLES 2 uses a wrapper for
this function so that it can cope with GL_ALPHA format textures. The
format of the current texture needs to be stored as well as the target
and object number for this to work.
2009-01-13 16:52:39 +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
Neil Roberts
606d34f2aa [cogl-material] Make the user_tex_coords parameter of _rectangle const
The array is only used for input so it should be const.
2009-01-06 16:09:55 +00:00
Robert Bragg
eb3b48e9ff Updates previous GLES multi-texturing code to use CoglMaterial
test-cogl-material now runs on GLES 1 using the PVR GLES1 SDK (though since
only 2 texture units are supported the third rotating light map doesn't show)

Note: It currently doesn't build for GLES 2.0
2008-12-22 16:35:52 +00:00
Robert Bragg
ea643ca0f8 [multi-texturing] This adds a new cogl_multi_texture API for GL,GLES1 + GLES2
Multitexturing allows blending multiple layers of texture data when texturing
some geometry. A common use is for pre-baked light maps which can give nice
lighting effects relativly cheaply. Another is for dot-3 bump mapping, and
another is applying alpha channel masks.

The dot-3 bump mapping would be really nice one day, but currently cogl doesn't
support lighting so that's not dealt with in this patch.

notable limitations:
- It can only texture rectangles a.t.m - and like cogl_texture_rectangle there
is no support for rotated texturing.
- Sliced textures are not supported. I think I've figured out how to handle
layers with different slice sizes at least for rectangular geometry, but I'm
not sure how complex it becomes once rotations are possible and texturing
arbitrary cogl_polygons.
- Except for this new API, cogl still doesn't know about more than one texture
unit, and so has no way of caching any enables related to other units. So that
things don't break it's currently necessary to disable anything to do with
additional units as soon as we are done with them which isn't ideal.
- No clutter API yet.
2008-12-22 16:35:51 +00:00
Neil Roberts
9537f8e4ae Use a single index array
There's no point in clearing the index array because it is always the
same sequence of indices regardless of the vertices. Instead it is
just added to when there are more vertices than ever before.
2008-12-09 18:03:29 +00:00
Neil Roberts
0bedd891fb Support cogl_texture_multiple_rectangles in GL ES backend 2008-12-09 15:10:33 +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
Robert Bragg
39aa5c27b5 A comparison of gl/cogl-texture.c and gles/cogl-texture.c, to reduce
differences and improve maintainability.

	* clutter/cogl/gl/cogl-context.h:
	Adds a CoglTextureGLVertex typedef + texture_vertices and
	texture_vertices_size members to CoglContext for using vertex arrays
	like GLES does

	* clutter/cogl/gl/cogl-context.c:
	Initializes texture_vertices + texture_vertices_size members

	* clutter/cogl/gl/cogl-internal.h:
	Adds COGL_ENABLE_COLOR_ARRAY

	* clutter/cogl/gl/cogl.c:
	Add COGL_ENABLE_COLOR_ARRAY support to cogl_enable

	* clutter/cogl/gles/cogl-context.h:
	Change the CoglTextureGLVertex to use GLfloat for the position
	and texture coord attributes and GLubyte for the color.

	* clutter/cogl/gles/cogl-texture-private.h:
	Adds a wrap_mode member like GL has.

	* clutter/cogl/gl/cogl-texture.c
	* clutter/cogl/gles/cogl-texture.c:
	Improves the comparability of the files, such that the remaining
	differences, better reflect the fundamental differences needed
	between GL and GLES. Notably GL no longer uses glBegin/glEnd for
	submitting vertices, it uses vertex arrays like GLES and this gives
	a small but measurable fps improvement for test-text.
2008-11-18 16:24:09 +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
Neil Roberts
0ff710d37b Bug 1057 - cogl_texture_rectangle doesn't support backward
coordinates

	* clutter/cogl/gl/cogl-texture.c: Instead of sorting the vertex
	and texture coordinates passed to cogl_texture_rectangle, just
	swap both sets whenever the texture coordinates are backward.
2008-11-12 13:03:09 +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
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