Commit Graph

144 Commits

Author SHA1 Message Date
Neil Roberts
461bff1867 fragend-arbfp: Move the pipeline cache to a separate file
The pipeline cache is now handled in CoglPipelineCache instead of
directly in the ARBfp fragend. The flags needed to hash a pipeline
should be exactly the same for the ARBfp and GLSL fragends so it's
convenient to share the code. The hash table now stores the actual
pipeline as the value instead of the private data so that the two
fragends can attach their data to it. That way it's possible to use
the same pipeline key with ancestors that are using different
fragends.

The hash table is created with g_hash_table_new_full to set a
destructor for the key and value and there is a destructor for
CoglPipelineCache that gets called when the CoglContext is
destroyed. That way we no longer leak the pipelines and shader state
when the context is desroyed.
2011-07-13 12:30:07 +01:00
Robert Bragg
d7bbc44235 dist: Make sure to dist cogl-winsys-egl-feature-functions.h
cogl-winsys-egl-feature-functions.h wasn't being listed as source and so
it wasn't ending up in dist tarballs.

Signed-off-by: Neil Roberts <neil@linux.intel.com>
2011-07-11 15:40:02 +01:00
Neil Roberts
b2e735ff7f Dynamically load the GL or GLES library
The GL or GLES library is now dynamically loaded by the CoglRenderer
so that it can choose between GL, GLES1 and GLES2 at runtime. The
library is loaded by the renderer because it needs to be done before
calling eglInitialize. There is a new environment variable called
COGL_DRIVER to choose between gl, gles1 or gles2.

The #ifdefs for HAVE_COGL_GL, HAVE_COGL_GLES and HAVE_COGL_GLES2 have
been changed so that they don't assume the ifdefs are mutually
exclusive. They haven't been removed entirely so that it's possible to
compile the GLES backends without the the enums from the GL headers.

When using GLX the winsys additionally dynamically loads libGL because
that also contains the GLX API. It can't be linked in directly because
that would probably conflict with the GLES API if the EGL is
selected. When compiling with EGL support the library links directly
to libEGL because it doesn't contain any GL API so it shouldn't have
any conflicts.

When building for WGL or OSX Cogl still directly links against the GL
API so there is a #define in config.h so that Cogl won't try to dlopen
the library.

Cogl-pango previously had a #ifdef to detect when the GL backend is
used so that it can sneakily pass GL_QUADS to
cogl_vertex_buffer_draw. This is now changed so that it queries the
CoglContext for the backend. However to get this to work Cogl now
needs to export the _cogl_context_get_default symbol and cogl-pango
needs some extra -I flags to so that it can include
cogl-context-private.h
2011-07-11 12:57:38 +01:00
Neil Roberts
59f746d281 cogl-context: Remove the driver private data
Since the GL function pointers have move to the root of CoglContext,
the driver specific data for GLES became empty and the GL data had
only one varible which apparently nothing was using. It's therefore
convenient to remove the private driver data to make it easier to have
a build of Cogl which enables both GL and GLES support. If we ever
need driver private data later we might want to use
cogl_object_set_user_data instead.
2011-07-08 15:35:50 +01:00
Neil Roberts
dae02a99a5 Move all of the GL function pointers directly to CoglContext
Instead of storing all of the feature function pointers in the driver
specific data of the CoglContext they are now all stored directly in
CoglContext. There is a single header containing the description of
the functions which gets included by cogl-context.h. There is a single
function in cogl-feature-private.c to check for all of these
functions.

The name of the function pointer variables have been changed from
ctx->drv.pf_glWhatever to just ctx->glWhatever.

The feature flags that get set when an extension is available are now
separated from the table of extensions. This is necessary because
different extensions can mean different things on GLES and GL. For
example, having access to glMapBuffer implies read and write support
on GL but only write support on GLES. The flags are instead set in the
driver specific init function by checking whether the function
pointers were successfully resolved.

_cogl_feature_check has been changed to assume the feature is
supported if any of the listed extensions are available instead of
requiring all of them. This makes it more convenient to specify
alternate names for the extension. Nothing else had previously listed
more than one name for an extension so this shouldn't cause any
problems.
2011-07-07 02:05:42 +01:00
Robert Bragg
8bfde524f8 matrix: Flatten cogl-matrix-mesa.[ch] into cogl-matrix.[ch]
It has been overly cumbersome to work with the matrix code ever since we
pulled in the mesa code because we initially kept the mesa and the
original cogl code separate. We have made several updates to the mesa
code since integrating, and the coding style has changed a lot compared
to the original mesa code, so there's little point in keeping the two
files separate any longer.

Signed-off-by: Neil Roberts <neil@linux.intel.com>
2011-07-04 15:31:50 +01:00
Neil Roberts
17c9cb8d49 Add the code from FreeBSD for their linked-list/queue implementation
This directly copies in the header from the FreeBSD kernel for their
linked-list implementation. A later patch will modify it but this
patch is here so we can have a clear patch to show what the
changes are.

Using the list implementation from this header is beneficial as
opposed to using GList because it's possible to embed the list
pointers directly into another struct. This saves a separate
allocation and it also makes it possible to remove an item from the
list without having to iterate the entire list to find its list
node. The header provides four different list types: single and
doubley linked lists and each of them can either have a header with
pointers to the beginning and end or just to the beginning. Glib
effectively only provides single and doubley linked lists with a
pointer to the beginning or a doubley-linked list with a pointer to
both (GQueue).

https://bugzilla.gnome.org/show_bug.cgi?id=652514
2011-07-01 17:52:55 +01:00
Robert Bragg
5dff6f6aa1 renderer: split win32 api out into separate header
This adds a cogl-win32-renderer.h for the win32 specific cogl-renderer
API instead of having #ifdef guards in cogl-renderer.h

Signed-off-by: Neil Roberts <neil@linux.intel.com>
2011-06-30 14:34:46 +01:00
Robert Bragg
cd6e1d183d Updates wayland symbol names to be consistent
This updates the public wayland symbols to follow the pattern
cogl_wayland_blah instead of cogl_blah_wayland.

Signed-off-by: Neil Roberts <neil@linux.intel.com>
2011-06-30 14:34:46 +01:00
Robert Bragg
89562dda73 work towards consistent platform file/symbol naming
we've got into a bit of a mess with how we name platform specific
symbols and files, so this is a first pass at trying to tidy that up.

All platform specific symbols should be named like
cogl_<platform>_symbol_name and similarly files should be named like
cogl-<platform>-filename.c

This patch tackles the X11 specific renderer/display APIs as a start.

Signed-off-by: Neil Roberts <neil@linux.intel.com>
2011-06-30 14:34:33 +01:00
Robert Bragg
3b64a439f0 replace public native_event APIs with typesafe APIs
This adds Xlib and Win32 typesafe replacements for
cogl_renderer_handle_native_event, cogl_renderer_add_native_filter,
cogl_renderer_remove_native_filter. The old functions are kept as an
implementation detail so we can share code.

Signed-off-by: Neil Roberts <neil@linux.intel.com>
2011-06-30 14:33:13 +01:00
Robert Bragg
57d76e315f Fixes for make distcheck 2011-06-14 17:09:55 +01:00
Robert Bragg
800f5e6d6e profile: Adds a --enable-profile option
This adds a --enable-profile option which enables uprof based profiling.
It was also necessary to fixup a CLUTTER_ENABLE_PROFILING #ifdef in
cogl-context.c to renamed COGL_ENABLE_PROFILING instead. By default Cogl
doesn't output uprof reports directly, instead it assumes a higher level
toolkit will output a report. If you want a report from Cogl you can
export COGL_PROFILE_OUTPUT_REPORT=1 before running your app.

The latest version of uprof can be fetched from:
git://github.com/rib/UProf.git
2011-06-14 17:09:55 +01:00
Robert Bragg
3729bf2769 Make it clearer that the 2.0 API is experimental
This explicitly renames the cogl-2.0 reference manual to
cogl-2.0-experimental and renames the cogl-2.0 pkg-config file to
cogl-2.0-experimental.pc. Hopefully this should avoid
miss-understandings.
2011-06-14 17:09:55 +01:00
Robert Bragg
bbfe8b8ec4 gir: pass dep cflags to gobject introspection scanner
The gobject introspection scanner was failing to find EGL headers so we
now pass the COGL_DEP_CFLAGS to Cogl_1_0_gir_CFLAGS.
2011-06-01 20:44:43 +01:00
Robert Bragg
60b25615fd Add _cogl_egl_texture_2d_new_from_image API
This adds an internal texture_2d constructor that can wrap an EGLImage
as a CoglTexture2D. The plan is to utilize this for texture-from-pixmap
support with EGL as well as creating textures from wayland buffers.
2011-06-01 20:44:42 +01:00
Robert Bragg
b380fed23d Make stub winsys into a proper winsys backend
Instead of the stub winsys being a special case set of #ifdef'd code
used when COGL_HAS_FULL_WINSYS wasn't defined, the stub winsys now
implements a CoglWinsysVtable like all other winsys backends (it's just
that everything is a NOP). This way we can get rid of the
COGL_HAS_FULL_WINSYS define and also the stub winsys can be runtime
selected whereas before it was incompatible with all other winsys
backends.
2011-06-01 20:44:41 +01:00
Robert Bragg
ee7cc9e788 Make CoglTexture2D public as experimental API
This exposes a CoglTexture2D typedef and adds the following experimental
API:
    cogl_is_texture_2d
    cogl_texture_2d_new_with_size
    cogl_texture_2d_new_from_data
    cogl_texture_2d_new_from_foreign

Since this is experimental API you need to define
COGL_ENABLE_EXPERIMENTAL_API before including cogl.h.

Note: With these new entrypoints we now expect a CoglContext pointer to
be passed in, instead of assuming there is a default context. The aim is
that for Cogl 2.0 we won't have a default context so this is a step in
that direction.
2011-06-01 20:44:41 +01:00
Robert Bragg
5a9b92a4a5 Revert "Initial build of a Quartz winsys stub"
This reverts commit b2e41f1bfa.

We are backing out the quartz specific stub winsys since we can simply
use the generic stub winsys on quartz until we develop a standalone
winsys. Since we plan on removing all special cases for the stub winsys
by handling with a winsys vtable like all the others it's better if we
don't introduce a quartz specific stub.
2011-06-01 20:21:59 +01:00
Emmanuele Bassi
b2e41f1bfa Initial build of a Quartz winsys stub 2011-05-24 23:08:59 +01:00
Damien Lespiau
f436582114 android: Add support for an EGL/Android winsys
The native window type of the EGL/Android winsys is ANativeWinow*. The
Android NDK gives you a pointer to this ANativeWindow and you just need
to configure that window using the EGLConfig you are choosing when
creating the context.

This means you have to know the ANativeWindow* window before creating
the context. This is solved here by just having a global variable you
can set with cogl_android_set_native_window() before creating the
context. This is a bit ugly though, and it conceptually belongs to the
OnScreen creation to know which ANativeWindow* to use. This would need a
"lazy context creation" mechanism, waiting for the user to create the
OnScreen to initialize the GL context.
2011-05-17 15:24:54 +01:00
Robert Bragg
07c0b9f89f Add CoglDepthState API
Instead of simply extending the cogl_pipeline_ namespace to add api for
controlling the depth testing state we now break the api out. This adds
a CoglDepthState type that can be stack allocated. The members of the
structure are private but we have the following API to setup the state:

    cogl_depth_state_init
    cogl_depth_state_set_test_enabled
    cogl_depth_state_get_test_enabled
    cogl_depth_state_set_test_function
    cogl_depth_state_get_test_function
    cogl_depth_state_set_writing_enabled
    cogl_depth_state_get_writing_enabled
    cogl_depth_state_set_range
    cogl_depth_state_get_range

This removes the following experimental API which is now superseded:

    cogl_material_set_depth_test_enabled
    cogl_material_get_depth_test_enabled
    cogl_material_set_depth_test_function
    cogl_material_get_depth_test_function
    cogl_material_set_depth_writing_enabled
    cogl_material_get_depth_writing_enabled
    cogl_material_set_depth_range
    cogl_material_get_depth_range

Once a CoglDepthState structure is setup it can be set on a pipeline
using cogl_pipeline_set_depth_state().
2011-05-16 18:36:44 +01:00
Neil Roberts
a466dc272b Don't include cogl-pango.h when scanning introspection data
cogl/cogl-pango.h can't be included unless the include directory for
Pango is given in the compiler flags. In an application, it is
expected that if they are using this header then they would pull in
cogl-pango-1.0.pc which would provide this. However when building Cogl
itself we might be building without Pango support so the Makefile
can't rely on PANGO_CFLAGS. This was breaking building the
introspection data because cogl-pango.h was listed as one of the files
to scan but it can't be included.
2011-05-16 15:41:25 +01:00
Robert Bragg
bf7653ac93 Rename CoglIndexArray to CoglIndexBuffer
This is part of a broader cleanup of some of the experimental Cogl API.
One of the reasons for this particular rename is to switch away from
using the term "Array" which implies a regular, indexable layout which
isn't the case. We also want to strongly imply a relationship between
CoglBuffers and CoglIndexBuffers and be consistent with the
CoglAttributeBuffer and CoglPixelBuffer APIs.
2011-05-16 14:31:31 +01:00
Robert Bragg
c328e0608f Rename CoglPixelArray to CoglPixelBuffer
This is part of a broader cleanup of some of the experimental Cogl API.
One of the reasons for this particular rename is to switch away from
using the term "Array" which implies a regular, indexable layout which
isn't the case. We also want to strongly imply a relationship between
CoglBuffers and CoglPixelBuffers and be consistent with the
CoglAttributeBuffer and CoglIndexBuffer APIs.
2011-05-16 14:31:31 +01:00
Robert Bragg
ce7c06dc03 Rename CoglVertexArray to CoglAttributeBuffer
This is part of a broader cleanup of some of the experimental Cogl API.
One of the reasons for this particular rename is to switch away from
using the term "Array" which implies a regular, indexable layout which
isn't the case. We also want to have a strongly implied relationship
between CoglAttributes and CoglAttributeBuffers.
2011-05-16 14:31:31 +01:00
Robert Bragg
df1915d957 math: Adds an experimental euler API
This adds an experimental CoglEuler data type and the following new
functions:

    cogl_euler_init
    cogl_euler_init_from_matrix
    cogl_euler_init_from_quaternion
    cogl_euler_equal
    cogl_euler_copy
    cogl_euler_free
    cogl_quaternion_init_from_euler

Since this is experimental API you need to define
COGL_ENABLE_EXPERIMENTAL_API before including cogl.h
2011-05-16 14:12:42 +01:00
Robert Bragg
d1434d1c33 math: Adds an experimental quaternion API
This adds an experimental quaternion utility API. It's not yet fully
documented but it's complete enough that people can start to experiment
with using it. It adds the following functions:

    cogl_quaternion_init_identity
    cogl_quaternion_init
    cogl_quaternion_init_from_angle_vector
    cogl_quaternion_init_from_array
    cogl_quaternion_init_from_x_rotation
    cogl_quaternion_init_from_y_rotation
    cogl_quaternion_init_from_z_rotation
    cogl_quaternion_equal
    cogl_quaternion_copy
    cogl_quaternion_free
    cogl_quaternion_get_rotation_angle
    cogl_quaternion_get_rotation_axis
    cogl_quaternion_normalize
    cogl_quaternion_dot_product
    cogl_quaternion_invert
    cogl_quaternion_multiply
    cogl_quaternion_pow
    cogl_quaternion_slerp
    cogl_quaternion_nlerp
    cogl_quaternion_squad
    cogl_get_static_identity_quaternion
    cogl_get_static_zero_quaternion

Since it's experimental API you'll need to define
COGL_ENABLE_EXPERIMENTAL_API before including cogl.h.
2011-05-16 14:11:47 +01:00
Robert Bragg
b316241612 deprecate #include <cogl/cogl-pango.h>
cogl-pango is conceptually a separate library so it doesn't seem
appropriate to bundle the headers with all the other cogl headers. Also
in-tree the headers live in a cogl-pango directory so if we want
examples that can include cogl-pango consistently when built in or out
of tree using the convention #include <cogl-pango/cogl-pango.h> makes
that easy.

This adds a compatibility cogl/cogl-pango.h header that's will redirect
to cogl-pango/cogl-pango.h with a warning, or result in an error if
COGL_ENABLE_EXPERIMENTAL_2_0_API is defined.
2011-05-16 13:28:17 +01:00
Neil Roberts
6788c80342 Add a WGL winsys
This adds a full winsys to handle WGL and Win32.
2011-05-10 17:58:41 +01:00
Robert Bragg
e8b83f2880 Adds wayland support to the cogl EGL winsys
Wayland now supports integration via standard eglSurfaces which makes it
possible to share more code with other EGL platforms. (though at some
point cogl-winsys-egl.c really needs to gain a more formal
CoglEGLPlatform abstraction so we can rein back on the amount of #ifdefs
we have.)
2011-05-10 16:36:40 +01:00
Damien Lespiau
62b7ea5972 build: Fix make distcheck
Some header files were split but never included in the list of source
files and thus not distributed.
2011-05-06 17:13:42 +01:00
Emmanuele Bassi
48c9157e97 build: Compile the introspection data
The compilation step for the introspection data was missing.
2011-05-06 16:53:43 +01:00
Robert Bragg
8b4ee0964b Remove all the options for building cogl standalone
This removes all the remnants from being able to build Cogl standalone
while it was part of the Clutter repository. Now that Cogl has been
split out then standalone builds are the only option.
2011-05-06 12:36:39 +01:00
Robert Bragg
6f2193545e consistently refer to cogl-pango as "cogl-pango"
This renames the pango directory to cogl-pango and it renames the
installed library to libcogl-pango instead of libcoglpango.
2011-05-06 12:12:08 +01:00
Robert Bragg
3a4d0a735b Export some private symbols from libcogl for coglpango
Ideally we wouldn't have any private symbols exported, but for now there
are some APIs that coglpango needs access to that aren't public so we
have ensure they are exported. The aim is to get rid of this need at
some point.
2011-05-05 20:34:54 +01:00
Robert Bragg
195cfa7814 cogl/Makefile.am: pass EXTRA_LDFLAGS for linking
When building on windows for example we need to ensure we pass
-no-undefined to the linker. Although we were substituting a
COGL_EXTRA_LDFLAGS variable from our configure.ac we forgot to
reference that when linking cogl.
2011-05-05 15:05:41 +01:00
Robert Bragg
b3a7ee5930 cogl: remove OSX/WIN32 specific bits in favour of a stub winsys
Until Cogl gains native win32/OSX support this remove the osx and win32
winsys files and instead we'll just rely on the stub-winsys.c to handle
these platforms. Since the only thing the platform specific files were
providing anyway was a get_proc_address function; it was trivial to
simply update the clutter backend code to handle this directly for now.
2011-05-05 15:05:41 +01:00
Robert Bragg
7037812ae6 EGL: Updates GDL platform support
The GDL API is used for example on intel ce4100 (aka Sodaville) based
systems as a way to allocate memory that can be composited using the
platforms overlay hardware. This updates the Cogl EGL winsys and the
support in Clutter so we can continue to support these platforms.
2011-05-05 14:46:02 +01:00
Robert Bragg
d5d11f1878 Moves all EGL code down from Clutter to Cogl
As was recently done for the GLX window system code, this commit moves
the EGL window system code down from the Clutter backend code into a
Cogl winsys.

Note: currently the cogl/configure.ac is hard coded to only build the GLX
winsys so currently this is only available when building Cogl as part
of Clutter.
2011-05-05 14:46:01 +01:00
Robert Bragg
8399f5e61c remove references to unused DRM_SURFACELESS EGL platform
The "DRM_SURFACELESS" EGL platform was invented when we were adding the
wayland backend to Clutter but in the end we added a dedicated backend
instead of extending the EGL backend so actually the platform name isn't
used.
2011-05-05 14:46:01 +01:00
Neil Roberts
4a7762d6d7 cogl-context: Store winsys features in an array of unsigned ints
Previously the mask of available winsys features was stored in a
CoglBitmask. That isn't the ideal type to use for this because it is
intended for a growable array of bits so it can allocate extra memory
if there are more than 31 flags set. For the winsys feature flags the
highest used bit is known at compile time so it makes sense to
allocate a fixed array instead. This is conceptually similar to the
CoglDebugFlags which are stored in an array of integers with macros to
test a bit in the array. This moves the macros used for CoglDebugFlags
to cogl-flags.h and makes them more generic so they can be shared with
CoglContext.
2011-04-20 18:20:10 +01:00
Robert Bragg
1928f7ec0e backend: remove untested fruity backend
This backend hasn't been used for years now and so because it is
untested code and almost certainly doesn't work any more it would be a
burdon to continue trying to maintain it. Considering that we are now
looking at moving OpenGL window system integration code down from
Clutter backends into Cogl that will be easier if we don't have to
consider this backend.
2011-04-11 17:54:36 +01:00
Robert Bragg
efb570fdae Adds the ability to build Cogl standalone
This adds an autogen.sh, configure.ac and build/autotool files etc under
clutter/cogl and makes some corresponding Makefile.am changes that make
it possible to build and install Cogl as a standalone library.

Some notable things about this are:
A standalone installation of Cogl installs 3 pkg-config files;
cogl-1.0.pc, cogl-gl-1.0.pc and cogl-2.0.pc. The second is only for
compatibility with what clutter installed though I'm not sure that
anything uses it so maybe we could remove it. cogl-1.0.pc is what
Clutter would use if it were updated to build against a standalone cogl
library. cogl-2.0.pc is what you would use if you were writing a
standalone Cogl application.

A standalone installation results in two libraries currently, libcogl.so
and libcogl-pango.so. Notably we don't include a major number in the
sonames because libcogl supports two major API versions; 1.x as used by
Clutter and the experimental 2.x API for standalone applications.
Parallel installation of later versions e.g. 3.x and beyond will be
supportable either with new sonames or if we can maintain ABI then we'll
continue to share libcogl.so.

The headers are similarly not installed into a directory with a major
version number since the same headers are shared to export the 1.x and
2.x APIs (The only difference is that cogl-2.0.pc ensures that
-DCOGL_ENABLE_EXPERIMENTAL_2_0_API is used). Parallel installation of
later versions is not precluded though since we can either continue
sharing or later add a major version suffix.
2011-04-11 17:54:36 +01:00
Robert Bragg
d40cdfa3e1 Moves all GLX code down from Clutter to Cogl
This migrates all the GLX window system code down from the Clutter
backend code into a Cogl winsys. Moving OpenGL window system binding
code down from Clutter into Cogl is the biggest blocker to having Cogl
become a standalone 3D graphics library, so this is an important step in
that direction.
2011-04-11 17:54:36 +01:00
Robert Bragg
bcd97f35ea Adds renderer,display,onscreen-template and swap-chain stubs
As part of the process of splitting Cogl out as a standalone graphics
API we need to introduce some API concepts that will allow us to
initialize a new CoglContext when Clutter isn't there to handle that for
us...

The new objects roughly in the order that they are (optionally) involved
in constructing a context are: CoglRenderer, CoglOnscreenTemplate,
CoglSwapChain and CoglDisplay.

Conceptually a CoglRenderer represents a means for rendering.  Cogl
supports rendering via OpenGL or OpenGL ES 1/2.0 and those APIs are
accessed through a number of different windowing APIs such as GLX, EGL,
SDL or WGL and more. Potentially in the future Cogl could render using
D3D or even by using libdrm and directly banging the hardware. All these
choices are wrapped up in the configuration of a CoglRenderer.

Conceptually a CoglDisplay represents a display pipeline for a renderer.
Although Cogl doesn't aim to provide a detailed abstraction of display
hardware, on some platforms we can give control over multiple display
planes (On TV platforms for instance video content may be on one plane
and 3D would be on another so a CoglDisplay lets you select the plane
up-front.)

Another aspect of CoglDisplay is that it lets us negotiate a display
pipeline that best supports the type of CoglOnscreen framebuffers we are
planning to create. For instance if you want transparent CoglOnscreen
framebuffers then we have to be sure the display pipeline wont discard
the alpha component of your framebuffers. Or if you want to use
double/tripple buffering that requires support from the display
pipeline.

CoglOnscreenTemplate and CoglSwapChain are how we describe our default
CoglOnscreen framebuffer configuration which can affect the
configuration of the display pipeline.

The default/simple way we expect most CoglContexts to be constructed
will be via something like:

 if (!cogl_context_new (NULL, &error))
   g_error ("Failed to construct a CoglContext: %s", error->message);

Where that NULL is for an optional "display" parameter and NULL says to
Cogl "please just try to do something sensible".

If you want some more control though you can manually construct a
CoglDisplay something like:

 display = cogl_display_new (NULL, NULL);
 cogl_gdl_display_set_plane (display, plane);
 if (!cogl_display_setup (display, &error))
   g_error ("Failed to setup a CoglDisplay: %s", error->message);

And in a similar fashion to cogl_context_new() you can optionally pass
a NULL "renderer" and/or a NULL "onscreen template" so Cogl will try to
just do something sensible.

If you need to change the CoglOnscreen defaults you can provide a
template something like:
  chain = cogl_swap_chain_new ();
  cogl_swap_chain_set_has_alpha (chain, TRUE);
  cogl_swap_chain_set_length (chain, 3);

  onscreen_template = cogl_onscreen_template_new (chain);
  cogl_onscreen_template_set_pixel_format (onscreen_template,
                                           COGL_PIXEL_FORMAT_RGB565);

  display = cogl_display_new (NULL, onscreen_template);
  if (!cogl_display_setup (display, &error))
    g_error ("Failed to setup a CoglDisplay: %s", error->message);
2011-04-11 17:54:35 +01:00
Robert Bragg
e80a2b9b2f rename winsys files to be more consistent
This tries to make the naming style of files under cogl/winsys/
consistent with other cogl source files. In particular private header
files didn't have a '-private' infix.
2011-04-11 17:54:35 +01:00
Robert Bragg
9f19244971 Add temporary cogl-clutter.h to aid splitting out Cogl
This gives us a way to clearly track the internal Cogl API that Clutter
depends on. The aim is to split Cogl out from Clutter into a standalone
3D graphics API and eventually we want to get rid of any private
interfaces for Clutter so its useful to have a handle on that task.
Actually it's not as bad as I was expecting though.
2011-04-11 17:54:35 +01:00
Robert Bragg
c415818537 cogl: consolidate _create_context_driver + _features_init
This moves the functionality of _cogl_create_context_driver from
driver/{gl,gles}/cogl-context-driver-{gl,gles}.c into
driver/{gl,gles}/cogl-{gl,gles}.c as a static function called
initialize_context_driver.

cogl-context-driver-{gl,gles}.[ch] have now been removed.
2011-04-11 15:26:25 +01:00
Robert Bragg
e9b1ca0165 cogl: Adds experimental cogl_context_new() API
This adds a new experimental function (you need to define
COGL_ENABLE_EXPERIMENTAL_API to access it) which takes us towards being
able to have a standalone Cogl API. This is really a minor aesthetic
change for now since all the GL context creation code still lives in
Clutter but it's a step forward none the less.

Since our current designs introduce a CoglDisplay object as something
that would be passed to the context constructor this provides a stub
cogl-display.h with CoglDisplay typedef.

_cogl_context_get_default() which Clutter uses to access the Cogl
context has been modified to use cogl_context_new() to initialize
the default context.

There is one rather nasty hack used in this patch which is that the
implementation of cogl_context_new() has to forcibly make the allocated
context become the default context because currently all the code in
Cogl assumes it can access the context using _COGL_GET_CONTEXT including
code used to initialize the context.
2011-04-11 15:26:20 +01:00