Commit Graph

24 Commits

Author SHA1 Message Date
Robert Bragg
e1b8e9445d Maintain the Cogl assumption that the modelview matrix is normally current
_cogl_add_path_to_stencil_buffer and _cogl_add_stencil_clip were leaving
the projection matrix current when calling cogl_rectangle which was
upsetting _cogl_current_matrix_state_flush.
2009-03-12 18:55:41 +00:00
Havoc Pennington
11349b6c74 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
Robert Bragg
c4b4500059 Changes cogl_rectangle to take x1, y1, x2, y2 args not x1, y1, width, height
This makes it consistent with cogl_rectangle_with_{multi,}texture_coords.
Notably the reason cogl_rectangle_with_{multi,}texture_coords wasn't changed
instead is that the former approach lets you describe back facing rectangles.
(though technically you could pass negative width/height values to achieve
 this; it doesn't seem as neat.)
2009-01-28 17:20:15 +00:00
Robert Bragg
323eaf3fb3 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
9abf44eac3 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
e9a9acd28d 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
Neil Roberts
33fe4518b0 Fix the Cogl primitives for the GLES backend
The Cogl primitives broke for GLES 1.1 and 2 after the cogl-float
branch merge.

CoglPathNode was still being declared as GLfixed for the GLES backend
but it was being filled with float values so they were all ending up
as numbers < 1.

glDrawArrays was being called with GL_FIXED so this has been changed
to GL_FLOAT.

The scanline rasterizer had a leftover hardcoded ClutterFixed constant
to add a small amount to the height of each line.

struct _CoglFloatVec2 has been removed because it is no longer used
anywhere.
2009-01-24 00:26:51 +00:00
Robert Bragg
4e60f2f5b0 [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
3336359abb [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
10d7cf3273 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
71a0be6fff 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
7c69ca2997 Bug 918 - Group doesn't clip if it's children are clipped
* clutter/cogl/common/cogl-clip-stack.h: 
	* clutter/cogl/common/cogl-clip-stack.c: Added functions to
	maintain a stack of clipping rectangles.

	* clutter/cogl/gles/cogl.c: 
	* clutter/cogl/gl/cogl.c: The cogl_clip_set and unset functions
	have moved into cogl-clip-stack.c which calls back to cogl.c to
	set the actual rectangles. Multiple clip rectangles are combined
	by merging the stencil buffers.

	* clutter/cogl/gles/cogl-primitives.c (_cogl_path_fill_nodes): 
	* clutter/cogl/gl/cogl-primitives.c (_cogl_path_fill_nodes): Merge
	the stencil buffer with the contents of the clipping stack after
	drawing the path.

	* clutter/cogl/gles/cogl-context.h (CoglContext): 
	* clutter/cogl/gl/cogl-context.h (CoglContext): Store the number
	of available stencil bits.

	* clutter/cogl/common/Makefile.am
	(libclutter_cogl_common_la_SOURCES): Added cogl-clip-stack.c
2008-06-23 14:57:36 +00:00
Emmanuele Bassi
76b5a93afa 2008-06-23 Emmanuele Bassi <ebassi@openedhand.com>
Bug 982 - __COGL_GET_CONTEXT MS compiler issue (Haakon Sporsheim)

	* clutter/cogl/common/cogl-handle.h:
	* clutter/cogl/common/cogl-primitives.c: Remove C99-isms.

	* clutter/cogl/gl/cogl-fbo.c:
	* clutter/cogl/gl/cogl-primitives.c:
	* clutter/cogl/gl/cogl-texture.c:
	* clutter/cogl/gl/cogl.c: Ditto as above.

	* clutter/cogl/gles/cogl-fbo.c:
	* clutter/cogl/gles/cogl-primitives.c:
	* clutter/cogl/gles/cogl-texture.c: Ditto as above.
2008-06-23 11:01:30 +00:00
Neil Roberts
559495caf7 * clutter/cogl/gles/cogl-gles2-wrapper.h (CoglGles2Wrapper): Added
uniforms for alpha testing.

	* clutter/cogl/gles/cogl-gles2-wrapper.c
	(cogl_gles2_wrapper_init): Get the uniforms for alpha testing
	settings.
	(cogl_wrap_glEnable, cogl_wrap_glDisable): Enable/disable alpha
	testing.
	(cogl_wrap_glAlphaFunc): Filled in the wrapper.

	* clutter/cogl/gles/cogl-fixed-fragment-shader.glsl: Added alpha
	testing.

	* clutter/cogl/gles/cogl-gles2-wrapper.h:
	* clutter/cogl/gles/cogl-gles2-wrapper.c
	(cogl_wrap_glGetIntegerv): Added a wrapper for glGetIntegerv so
	that it can report zero clip planes.

	* clutter/cogl/gles/cogl.c:
	* clutter/cogl/gles/cogl-texture.c: Use the wrapped version of
	glGetIntegerv

	* clutter/cogl/gles/cogl-primitives.c (_cogl_path_fill_nodes): Use
	_cogl_features_available to check for the stencil buffer instead
	of an #ifdef. The stencil buffer is available in the default
	profile for the GLES 2 simulator.
2008-05-29 13:29:04 +00:00
Neil Roberts
f177aedcff GLES 2 backend
* clutter/eglx/clutter-stage-egl.h:
	* clutter/eglx/clutter-egl-headers.h:
	* clutter/eglx/clutter-backend-egl.h:
	* clutter/eglx/Makefile.am: Include the GLES and EGL headers via
	clutter-egl-headers.h so that the right version can be used
	depending on whether the GLES 2 wrapper is being used.

	* configure.ac: Added an automake conditional for whether the GLES
	2 wrapper should be used.

	* clutter/eglx/clutter-stage-egl.c (clutter_stage_egl_realize):
	Remove the call to glGetIntegerv to get the max texture size. It
	was being called before the GL context was bound so it didn't work
	anyway and it was causing trouble for the GLES 2 simulator.

	* clutter/cogl/gles/stringify.sh: Shell script to convert the
	shaders into a C string.

	* clutter/cogl/gles/cogl-gles2-wrapper.h:
	* clutter/cogl/gles/cogl-gles2-wrapper.c: Wrappers for most of the
	missing GL functions in GLES 2.

	* clutter/cogl/gles/cogl-fixed-fragment-shader.glsl:
	* clutter/cogl/gles/cogl-fixed-vertex-shader.glsl: New shaders for
	GLES 2

	* clutter/cogl/gles/cogl-defines.h.in: Use the @CLUTTER_GL_HEADER@
	macro instead of always using the GLES 1 header.

	* clutter/cogl/gles/cogl-context.h (CoglContext): Include a field
	for the state of the GLES 2 wrapper.

	* clutter/cogl/gles/cogl-texture.c:
	* clutter/cogl/gles/cogl-primitives.c:
	* clutter/cogl/gles/cogl.c: Use wrapped versions of the GL
	functions where neccessary.

	* clutter/cogl/gles/Makefile.am: Add sources for the GLES 2
	wrapper and an extra build step to put the GLSL files into a C
	string whenever the files change.
2008-05-27 17:42:50 +00:00
Øyvind Kolås
073870dbbf * clutter/cogl/gl/cogl-primitives.c:
* clutter/cogl/gles/cogl-primitives.c: 
* clutter/cogl/common/cogl-primitives.c: moved declaration of
gegl_rectangle and gegl_rectanglex here to satisfy linking
requirements when building the fruity backend.
2008-05-05 12:01:19 +00:00
Øyvind Kolås
f2b44899f9 * 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
Øyvind Kolås
bbe138298c * clutter/cogl/gles/cogl-primitives.c: (_cogl_path_fill_nodes): draw
the rasterized scanlines as an array of triangles.
2008-05-01 11:27:58 +00:00
Øyvind Kolås
0b7cab090c * clutter/cogl/gles/cogl-primitives.c: (_cogl_path_fill_nodes):
keep track of direction we are drawing in and make sure we leave
two intersection points when we have changed direction.
2008-04-30 21:48:47 +00:00
Øyvind Kolås
97b3499c52 * clutter/cogl/gles/cogl-primitives.c: (_cogl_path_fill_nodes):
scanline rasterizer fallback for GLES without working stencil
buffer (would benefit from optimization/smarter choice of
datastructures).
2008-04-30 16:57:21 +00:00
Øyvind Kolås
96f679a18b * clutter/cogl/common/Makefile.am:
* clutter/cogl/common/cogl-primitives.c:
* clutter/cogl/common/cogl-primitives.h:
* clutter/cogl/gl/Makefile.am:
* clutter/cogl/gl/cogl-primitives.c:
* clutter/cogl/gl/cogl-primitives.h:
* clutter/cogl/gles/Makefile.am:
* clutter/cogl/gles/cogl-primitives.c:
* clutter/cogl/gles/cogl-primitives.h: moved duplicated code to the
common directory.
2008-04-30 15:05:17 +00:00
Øyvind Kolås
6a4cdd6e49 * 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
Øyvind Kolås
2b7ff6fed0 * 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
Neil Roberts
eff57a1cb0 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