Commit Graph

1028 Commits

Author SHA1 Message Date
Emmanuele Bassi
e950d2feec docs: Add annotation glossary to the Cogl API reference
It's the only way to let gtk-doc know that we're using annotations in
the comments.
2010-09-03 16:52:06 +01:00
Emmanuele Bassi
b12f688415 docs: Fixes for gtk-doc 2010-09-03 16:12:24 +01:00
Emmanuele Bassi
08eb738c93 build: Use Makefile.introspection
Whenever possible, instead of writing our own rules for generating GIR
files and typelibs.
2010-09-03 11:38:22 +01:00
Colin Walters
d4d899fa27 introspection: Build fixes
This patch merges in substantial work from
Emmanuele Bassi <ebassi@linux.intel.com>

* Use new introspection --include-uninstalled API since we don't want
  to try to find the clutter-1.0.pc file before it's installed.
* Use --pkg-export for Clutter-1.0.gir, since we want the .gir file to
  contain the associated pkg-config file.
* Drop the use of --pkg for dependencies; those come from the associated
  .gir files.  (Actually, --pkg is almost never needed)
* Add --quiet

http://bugzilla.clutter-project.org/show_bug.cgi?id=2292
2010-09-03 11:38:22 +01:00
Damien Lespiau
7e158c6bc5 cex100: Add a Clutter EGL backend for CE3100/CE4100 SoCs
Intel CE3100 and CE4100 SoCs are designed for TVs. They have separate
framebuffers that are blended together by a piece of hardware to make
the final output. The library that allows you to initialize and
configure those planes is called GDL. A EGL GDL winsys can then be
use with those planes as NativeWindowType to select which plane to use.

This patch adds a new ClutterBackendCex100 backend that can be
selected at compile time with the new --with-flavour=cex100 option.
2010-09-03 11:13:35 +01:00
Damien Lespiau
7367188ab5 egl: Fix compilation for EGL native
Some minor fixes here and there: missing include, wrongly placed #endif,
unused variable warning fixes, missing #ifdef.

Make ClutterStageEGL a subclass of either ClutterStageX11 or GObject
depending if you compile with X11 support (EGLX) or not (native).
2010-09-03 11:13:35 +01:00
Emmanuele Bassi
a77e14c969 docs: Pass -DCOGL_ENABLE_EXPERIMENTAL_API when scanning 2010-08-28 21:21:08 +01:00
Emmanuele Bassi
bed0876749 Merge remote branch 'elliot/cookbook-textures-crossfade'
* elliot/cookbook-textures-crossfade:
  cookbook: Use GdkPixbuf instead of getting data from a texture
  cookbook: Added a recipe for cross-fading between two images
  cookbook: Modified COGL example for consistency
  cookbook: Added video of two texture cross-fade
  cookbook: Removed unused constant
  cookbook: Renamed front/back to top/bottom in cross-fade example
  cookbook: Don't need to set keep-aspect-ratio for simple example
  cookbook: Modified ordering of statements in cross-fade example
  cookbook: Added a longer slideshow example
  cookbook: Made code examples more consistent
  cookbook: Added example code for texture cross-fading
  Post-release version bump to 1.3.13
  Release Clutter 1.3.12 (developers snapshot)

Conflicts:
	doc/cookbook/examples/Makefile.am
2010-08-20 15:24:42 +01:00
Robert Bragg
90f633dd8d material: Implements weak materials
Weak materials are ones that don't take a reference on their parent and
they are associated with a callback that notifies when the material is
destroyed, because its parent was freed or modified.

More details can be found at:
http://wiki.clutter-project.org/wiki/CoglDesign/CoglMaterial

For now the concept is internal only but the plan is to make this public
at some point once we have tested the design internally.
2010-08-13 16:23:19 +01:00
Emmanuele Bassi
65c2caea65 Merge remote branch 'elliot/cookbook-events-mouse-scroll'
* elliot/cookbook-events-mouse-scroll:
  cookbook: Cleaning up grammar and wording in mouse scroll recipe
  cookbook: Added more explanation about setting y coord on scrollable
  cookbook: Mentioned the animation in the sample code
  cookbook: Included video of the scroll example running
  cookbook: Made stage slightly smaller for scroll event example
  cookbook: Added video showing scrollable actor
  cookbook: Added walk through of code example for mouse scroll
  cookbook: Fixed link to example in mouse scroll recipe
  cookbook: Simplified full scroll example
  cookbook: Improved wording and formatting in mouse scroll intro.
  cookbook: Handle all possible mouse scroll directions
  cookbook: Build mouse scroll example with cookbook
  cookbook: Cleaned up redundant comments in code example
  cookbook: Added xmlns for XInclude to events docbook file
  cookbook: Added basic mouse scroll recipe
2010-08-12 18:29:08 +01:00
Robert Bragg
63fd426b4b cogl-shader: get_info_log should always use strdup
In the case where there is no error log for arbfp we were returning a
"" string literal. The other paths were using g_strdup to return a
string that could be freed with g_free. This makes the arbfp path return
g_strdup ("") instead.
2010-08-12 16:50:47 +01:00
Robert Bragg
a0247f294d cogl-shader: correctly #ifdef guard an if else block
There are quite a few if {} else {} blocks for dealing with arbfp else
glsl and the first block is guarded with #ifdef HAVE_COGL_GL. In this
case though the #endif was before the else so it wouldn't compile for
gles.
2010-08-12 16:50:47 +01:00
Robert Bragg
13e7260868 material-glsl: #include "cogl-shader-private.h"
We need to include cogl-shader-private.h to have the
COGL_SHADER_TYPE_GLSL define. When building for opengl this wasn't
noticed probably because some other header indirectly includes this
file. It was a problem when building for gles2 though.
2010-08-12 16:50:47 +01:00
Robert Bragg
8d80a88e14 cogl-program: Adds use_uniform_xyz methods
Instead of exposing an API that provides an OpenGL state machine style
where you first have to bind the program to the context using
cogl_program_use() followed by updating uniforms using
cogl_program_uniform_xyz we now have uniform setter methods that take an
explicit CoglHandle for the program.

This deprecates cogl_program_use and all the cogl_program_uniform
variants and provides the following replacements:
    cogl_program_set_uniform_1i
    cogl_program_set_uniform_1f
    cogl_program_set_uniform_int
    cogl_program_set_uniform_float
    cogl_program_set_uniform_matrix
2010-08-12 16:50:46 +01:00
Damien Lespiau
64b5308d7f introspection: Use the --quiet flag conditionally
--quiet has been added to g-ir-scanner in the 0.9.1 cycle. We really
want to be able to compile clutter with 0.6.14 to be able to reuse
gir files that are distributed in current distributions.

Use the INTROSPECTION_SCANNER_ARGS (previously unused) variable to
convey --quiet when necessary.

Fixes: http://bugzilla.clutter-project.org/show_bug.cgi?id=2265
2010-08-12 16:43:07 +01:00
Neil Roberts
717cb2c47f cogl-atlas: Verify that the chosen initial size is supported
CoglAtlas chooses a fairly large default initial size of either
512x512 or 1024x1024 depending on the texture format. There is a
chance that this size will not be supported on some platforms which
would be catastrophic for the glyph cache because it would mean that
it would always fail to put any glyphs in the cache so text wouldn't
work. To fix this the atlas code now checks whether the chosen initial
size is supported by the texture driver and if not it will get halved
until it is supported.
2010-08-12 11:57:00 +01:00
Neil Roberts
b4240cba29 cogl-atlas: Use _cogl_texture_driver_size_supported
Previously when creating a new rectangle map it would try increasingly
larger texture sizes until GL_MAX_TEXTURE_SIZE is reached. This is bad
because it queries state which should really be owned by the texture
driver. Also GL_MAX_TEXTURE_SIZE is often a conservative estimate so
larger texture sizes can be used if the proxy texture is queried
instead.
2010-08-12 11:57:00 +01:00
Neil Roberts
1e72ba4932 cogl-rectangle-map: Record largest gap rather than the remaining space
Previously each node in the rectangle map tree would store the total
remaining space in all of its children to use as an optimization when
adding nodes. With this it could skip an entire branch of the tree if
it knew there could never be enough space for the new node in the
branch. This modifies that slightly to instead store the largest
single gap. This allows it to skip a branch earlier because often
there would be a lot of small gaps which would add up to enough a
space for the new rectangle, but the space can't be used unless it is
in a single node.

The rectangle map still needs to keep track of the total remaining
space for the whole map for the debugging output so this has been
added back in to the CoglRectangleMap struct. There is a separate
debugging function to verify this value.
2010-08-12 11:57:00 +01:00
Neil Roberts
0aaea4a93a cogl-atlas: Try the next size when there would be less than 6% waste
Previously when the atlas needs to be migrated it would start by
trying with the same size as the existing atlas if there is enough
space for the new texture. However even if the atlas is completely
sorted there will always be some amount of waste so when the atlas
needs to grow it would usually end up redundantly trying the same size
when it is very unlikely to fit. This patch changes it so that there
must be at least 6% waste available after the new texture is added
otherwise it will start with the next atlas size.
2010-08-12 11:57:00 +01:00
Neil Roberts
c6b6f619a9 cogl-atlas: Add some more debugging notes
This adds some debugging notes which report when the atlas is trying
various sizes.
2010-08-12 11:57:00 +01:00
Neil Roberts
74b6484812 cogl-rectangle-map: Use a GArray for the stack
When iterating over the rectangle map a stack is used to implement a
recursive algorithm. Previously this was slice allocating a linked
list. Now it uses a GArray which is retained with the rectangle map to
avoid frequent allocations which is a little bit faster.
2010-08-12 11:56:59 +01:00
Neil Roberts
9a62c069aa cogl-rectangle-map: Store the remaining space per node
Previously the remaining space was managed as part of the
CoglRectangleMap struct. Now it is stored per node so that at any
point in the hierarchy we can quickly determine how much space is
remaining in all of the node's children. That way when adding a
rectangle we can miss out entire branches more quickly if we know that
there is no way the new rectangle would fit in that branch.

This also adds a function to recursively verify the cached state in
the nodes such as the remaining space and the number of
rectangles. This function is only called when the dump-atlas-image
debug flag is set because it is potentially quite slow.
2010-08-12 11:56:59 +01:00
Neil Roberts
92b712f6e4 cogl-atlas: Increase the default minimum texture size
When initially creating a texture it would start with a minimum size
of 256x256. This increases the size so that it would try to match 1MB
of memory.
2010-08-12 11:56:59 +01:00
Neil Roberts
8123330061 cogl-pango: Use a CoglAtlas to maintain the glyph cache
The glyph cache is now stored in a CoglAtlas structure instead of the
custom atlasing code. This has the advantage that it can share code
with the main texture atlas and that it supports reorganizing the
atlas when it becomes full. Unlike the texture atlas, the glyph cache
can use multiple atlases which would be neccessary if the maximum
texture size is reached and we need to create a second
texture. Whenever a display list is created it now has to register a
callback with the glyph cache so that the display list can be
recreated whenever any of the atlases are reorganized. This is needed
because the display list directly stores texture coordinates within
the atlas texture and they would become invalid when the texture is
moved.

The ensure_glyphs_for_layout now works in two steps. First it reserves
space in the atlas for all of the glyphs. The atlas is created with
the DISABLE_MIGRATION flag so that it won't actually copy any textures
if any rearranging is needed. Whenever the position is updated for a
glyph then it is marked as dirty. After space for all of the glyphs
has been reserved it will iterate over all dirty glyphs and redraw
them using Cairo. The rendered glyph is then stored in the texture
with a sub texture update.

The glyphs need to all be set at the right location before starting to
create the display list because the display list stores the texture
coordinates of the glyph. If any of the glyphs were moved around then
the parts of the display list that was created already would become
invalid. To make this work, ensure_glyphs_for_layout is now always
called before rendering a layout or a layout line.
2010-08-12 11:56:59 +01:00
Neil Roberts
bbac324356 cogl-atlas: Support multiple formats and clearing the texture
_cogl_atlas_new now has two extra parameters to specify the format of
the textures it creates as well as a set of flags to modify the
behavious of the atlas. One of the flags causes the new textures to be
cleared and the other causes migration to avoid actually copying the
textures. This is needed to use CoglAtlas from the pango glyph cache
because it needs to use COGL_PIXEL_A_8 and to clear the textures as it
does not fill in the gaps between glyphs. It needs to avoid copying
the textures so that it can work on GL implementations without FBO
support.
2010-08-12 11:56:59 +01:00
Neil Roberts
b2f2e69264 cogl-atlas-texture: Split out the atlas data structure
Instead of storing a pointer to the CoglRectangleMap and a handle to
the atlas texture in the context, there is a now a separate data
structure called a CoglAtlas to manage these two. The context just
contains a pointer to this. The code to reorganise the atlas has been
moved from cogl-atlas-texture.c to cogl-atlas.c
2010-08-12 11:56:59 +01:00
Neil Roberts
cb114f43ab cogl: Add an internal utility to maintain a list of callback functions
This adds an internal CoglCallbackList type which is just a GSList of
of function pointers along with a data pointer to form a
closure. There are functions to add and remove items and to invoke the
list of functions. This could be used in a number of places in Cogl.
2010-08-12 11:54:42 +01:00
Neil Roberts
bc20010582 cogl-atlas: Rename to CoglRectangleMap
This simply renames CoglAtlas to CoglRectangleMap without making any
functional changes. The old 'CoglAtlas' is just a data structure for
managing unused areas of a rectangle and it doesn't neccessarily have
to be used for an atlas so it wasn't a very good name.
2010-08-12 11:54:42 +01:00
Neil Roberts
bb17fd70e2 cogl-material: Compare whether textures are equal by their GL handle
Textures within a layer were compared for equality by comparing their
texture handle. However this means that sub textures and atlas
textures which may be internally using the same GL handle would not be
batched together. Instead it now tries to determine the underlying GL
handle using either the slice override or _cogl_texture_get_gl_texture
and then compares those.
2010-08-12 11:36:18 +01:00
Neil Roberts
b7807d9995 cogl-atlas-texture: Accept formats with different component orders
When filtering on allowed formats for atlas textures, it now masks out
the BGR and AFIRST bits in addition to the premult bit. That way it
will accept RGB and RGBA formats in any component order.

In theory it could also accept luminance and alpha-only textures but I
haven't added this because presumably if the application has requested
these formats then it has some reason not to use a full RGB or RGBA
texture and we should respect that.
2010-08-12 10:03:52 +01:00
Emmanuele Bassi
4be7310fb1 build: Make the introspection generation quiet (again) 2010-08-12 09:03:58 +01:00
Emmanuele Bassi
8b8dd92be3 Merge branch 'wip/table-layout'
* wip/table-layout:
  Add ClutterTableLayout, a layout showing children in rows and columns
  box-layout: Use allocate_align_fill()
  bin-layout: Migrate to allocate_align_fill()
  actor: Add allocate_align_fill()
  test-flow-layout: Use BindConstraints
2010-08-11 11:32:44 +01:00
Owen W. Taylor
d8e521af0a Always bind a new texture to unit 1 when necessary
The special handling for texture unit 1 caught the case where unit
1 was changed for transient purposes, but didn't properly handle
the case where the actual non-transient texture was different between
two materials with no transient binding in between.

If the actual texture has changed when flushing, mark unit 1 as dirty
and needing a rebind.

http://bugzilla.clutter-project.org/show_bug.cgi?id=2261
2010-08-09 22:02:03 +01:00
Emmanuele Bassi
242afd96eb Silence a compiler warning 2010-08-09 19:38:23 +01:00
Emmanuele Bassi
786e292671 Merge remote branch 'elliot/cookbook-layouts-introduction'
* elliot/cookbook-layouts-introduction:
  cookbook: Added layout introduction and "stacking actors" recipe
  cookbook: Added layouts.xml to the list of XML files
  cookbook: Added layouts section and introduction
2010-08-09 17:44:42 +01:00
Robert Bragg
65196a4a9b cogl: Allow setting ARBfp source on a CoglShader
This makes CoglProgram/Shader automatically detect when the user has
given an ARBfp program by checking for "!!ARBfp1.0" at the beginning of
the user's source.

ARBfp local parameters can be set with cogl_program_uniform_float
assuming you pass a @size of 4 (all ARBfp program.local parameters
are vectors of 4 floats).

This doesn't expose ARBfp environment parameters or double precision
local parameters.
2010-08-09 17:27:02 +01:00
Robert Bragg
11045c724c cogl: Adds a COGL_FEATURE_SHADERS_ARBFP feature flag
This adds a public feature flag for ARBfp so developers can determine if
the cogl API supports ARBfp or not.
2010-08-09 17:27:02 +01:00
Robert Bragg
b025a4a020 material: Add cogl_material_{get,set}_user_program
Previously we had an internal only _cogl_material_set_user_program to
redirect legacy usage of cogl_program_use() through CoglMaterial. This
instead makes the API public because until we implement our planned
"snippet" framework we need a stop-gap solution for using shaders in
Cogl.

The plan is to also support ARBfp with the cogl_program/shader API so
this API will also allow clutter-gst to stop using direct OpenGL calls
that conflict with Cogl's state tracking.
2010-08-09 17:26:57 +01:00
Robert Bragg
937fc0dbec material: chain up in layer_pre_change_notify
A change to a layer is also going to be a change to its owning material
so we have to chain up in _cogl_material_layer_pre_change_notify and
call _cogl_material_pre_change_notify. Previously we were only
considering if the owning material was referenced in the journal but
that ignores that it might also have dependants. We no longer need to
flush the journal directly in layer_pre_change_notify.
2010-08-09 17:12:26 +01:00
Robert Bragg
b493b30257 material: unlink old layer from owner when replacing
In _cogl_material_layer_pre_change_notify when we see that a layer has
dependants and it can't be modified directly then we allocate a new
layer. In this case we also have to link the new layer to its required
owner. If the immutable layer we copied had the same owner though we
weren't unlinking that old layer.
2010-08-09 17:12:26 +01:00
Robert Bragg
021265e634 material: fix initialization of sparse properties
In _cogl_material_pre_change_notify we need to identify if it's a sparse
property being changed and if so initialize the state group if the given
material isn't currently the authority for it.

Previously we were unconditionally calling
_cogl_material_initialize_state which would e.g. NULL the layer
differences list of a material each time a layer change was notified.

It would also call _cogl_material_initialize_state for non-sparse
properties which should always be valid at this point so the function
has been renamed to _cogl_material_initialize_sparse_state to make this
clearer with a corresponding g_return_if_fail check.
2010-08-09 17:12:26 +01:00
Robert Bragg
02ce77dc08 material: fix copying of material layer differences
This fixes how we copy layer differences in
_cogl_material_copy_layer_differences.

We were making a redundant g_list_copy of the src differences and then
iterating the src list calling _cogl_material_add_layer_difference for
each entry which would double the list length, but the initial copy
directly referenced the original layers which wasn't correct.

Also we were initializing dest->n_layers before copying the layer
differences but the act of copying the differences will re-initialize
n_layers to 0 when adding the first layer_difference since it will
trigger a layer_pre_change_notify and since the dest material isn't yet
a STATE_LAYERS authority the state group is initialized before allowing
the change.
2010-08-09 17:12:26 +01:00
Robert Bragg
a75a7fadab material: don't dereference layer->texture directly
In _cogl_material_texture_storage_change_notify we were potentially
dereferencing layer->texture without checking first that it is the
authority of texture state. We now use
_cogl_material_layer_get_texture() instead.
2010-08-09 17:12:26 +01:00
Robert Bragg
8caaf5a8b2 material: Improve the dot file debugging code
This improve the dot file output available when calling
_cogl_debug_dump_materials_dot_file. The material graph now directly
points into the layer graph and the layers now show the texture unit
index.
2010-08-09 17:12:25 +01:00
Neil Roberts
abea3d7ead cogl-material: Unref the texture when reverting authority
When the texture is set on a layer so that it is back to the parent's
texture it would clear the texture change flag but it wouldn't unref
the texture. The free function for a material layer does not unref the
texture if the change flag is cleared so the texture would end up
leaking. This happens for ClutterTexture because it disposes the
texture by setting layer 0 of the material to COGL_INVALID_HANDLE
which ends up the same as the default material.
2010-08-06 17:09:54 +01:00
Robert Bragg
eda852e78c material: only deference layer->texture for authority
In _cogl_material_layer_pre_paint we were mistakenly dereferencing the
layer->texture member for the passed layer instead of dereferencing the
texture state authority which was causing crashes in some cases.
2010-08-06 14:16:35 +01:00
Emmanuele Bassi
3aca146215 Merge remote branch 'elliot/cookbook-animations-rotating'
* elliot/cookbook-animations-rotating:
  cookbook: Added recipe for animated rotation of an actor
  cookbook: Add explanation about including code samples
  cookbook: Make filename used in video example consistent
  cookbook: Add example code for animated rotation
2010-08-03 15:44:46 +01:00
Robert Bragg
99ae7b15f5 cogl-program: gles2: bind programs lazily as for GL
This makes the gles2 cogl_program_use consistent with the GL version by
not binding the program immediately and instead leaving it to
cogl-material.c to bind the program when actually drawing something.
2010-08-03 15:00:07 +01:00
Robert Bragg
650df3f2eb gles2: Have CoglProgram track uniforms per program
Previously custom uniforms were tracked in _CoglGles2Wrapper but as part
of a process to consolidate the gl/gles2 shader code it seems to make
sense for this state to be tracked in the CoglProgram object instead.

http://bugzilla.o-hand.com/show_bug.cgi?id=2179
2010-08-03 15:00:04 +01:00
Robert Bragg
7705469d2b cogl-shader: unifies the driver/{gl,gles} shader files
The per driver implementations of cogl-shader.c had become almost
identical we now have a single cogl/cogl-shader.c instead.
2010-08-03 12:41:37 +01:00