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mutter-performance-source/clutter/egl/clutter-backend-eglnative.c

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Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Copyright (C) 2010,2011 Intel Corporation.
* 2011 Giovanni Campagna <scampa.giovanni@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
* Authors:
* Matthew Allum
* Emmanuele Bassi
* Robert Bragg
* Neil Roberts
*/
#include "config.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include "clutter-backend-eglnative.h"
Implement multi-backend support The Clutter backend split is opaque enough that should allow us to just build all possible backends inside the same shared object, and select the wanted backend at initialization time. This requires some work in the build system, as well as the initialization code, to remove duplicate functions that might cause conflicts at build and link time. We also need to defer all the checks of the internal state of the platform-specific API to run-time type checks.
2011-09-21 17:05:03 +00:00
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
/* This is a Cogl based backend */
#include "cogl/clutter-stage-cogl.h"
#ifdef HAVE_EVDEV
#include "clutter-device-manager-evdev.h"
#endif
egl: First attempt at cleaning up the EGL native backend At least, let's make it compile when built along with the other backends. In reality, it still needs to be verified as working.
2011-10-03 11:25:53 +00:00
#ifdef HAVE_TSLIB
#include "clutter-event-tslib.h"
#endif
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
#include "clutter-debug.h"
#include "clutter-private.h"
#include "clutter-main.h"
#include "clutter-stage-private.h"
#ifdef COGL_HAS_EGL_SUPPORT
#include "clutter-egl.h"
#endif
egl: First attempt at cleaning up the EGL native backend At least, let's make it compile when built along with the other backends. In reality, it still needs to be verified as working.
2011-10-03 11:25:53 +00:00
Implement multi-backend support The Clutter backend split is opaque enough that should allow us to just build all possible backends inside the same shared object, and select the wanted backend at initialization time. This requires some work in the build system, as well as the initialization code, to remove duplicate functions that might cause conflicts at build and link time. We also need to defer all the checks of the internal state of the platform-specific API to run-time type checks.
2011-09-21 17:05:03 +00:00
#ifdef CLUTTER_EGL_BACKEND_CEX100
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
#include "clutter-cex100.h"
#endif
Implement multi-backend support The Clutter backend split is opaque enough that should allow us to just build all possible backends inside the same shared object, and select the wanted backend at initialization time. This requires some work in the build system, as well as the initialization code, to remove duplicate functions that might cause conflicts at build and link time. We also need to defer all the checks of the internal state of the platform-specific API to run-time type checks.
2011-09-21 17:05:03 +00:00
#ifdef CLUTTER_EGL_BACKEND_CEX100
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
static gdl_plane_id_t gdl_plane = GDL_PLANE_ID_UPP_C;
static guint gdl_n_buffers = CLUTTER_CEX100_TRIPLE_BUFFERING;
#endif
egl: First attempt at cleaning up the EGL native backend At least, let's make it compile when built along with the other backends. In reality, it still needs to be verified as working.
2011-10-03 11:25:53 +00:00
#define clutter_backend_egl_native_get_type _clutter_backend_egl_native_get_type
Implement multi-backend support The Clutter backend split is opaque enough that should allow us to just build all possible backends inside the same shared object, and select the wanted backend at initialization time. This requires some work in the build system, as well as the initialization code, to remove duplicate functions that might cause conflicts at build and link time. We also need to defer all the checks of the internal state of the platform-specific API to run-time type checks.
2011-09-21 17:05:03 +00:00
cogl/backend: Remove the ClutterBackendCogl class All the functionality that ClutterBackendCogl provided has been moved into ClutterBackend itself, so there is no need to have this class around in the source. Cogl-based backends can derive directly from ClutterBackend.
2011-11-04 16:52:44 +00:00
G_DEFINE_TYPE (ClutterBackendEglNative, clutter_backend_egl_native, CLUTTER_TYPE_BACKEND);
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
static ClutterDeviceManager *
clutter_backend_egl_native_get_device_manager (ClutterBackend *backend)
{
ClutterBackendEglNative *backend_egl_native = CLUTTER_BACKEND_EGL_NATIVE (backend);
if (G_UNLIKELY (backend_egl_native->device_manager == NULL))
{
#ifdef HAVE_EVDEV
backend_egl_native->device_manager =
g_object_new (CLUTTER_TYPE_DEVICE_MANAGER_EVDEV,
"backend", backend_egl_native,
NULL);
#endif
}
return backend_egl_native->device_manager;
}
static void
egl: First attempt at cleaning up the EGL native backend At least, let's make it compile when built along with the other backends. In reality, it still needs to be verified as working.
2011-10-03 11:25:53 +00:00
clutter_backend_egl_native_dispose (GObject *gobject)
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
{
ClutterBackendEglNative *backend_egl_native = CLUTTER_BACKEND_EGL_NATIVE (gobject);
if (backend_egl_native->event_timer != NULL)
{
g_timer_destroy (backend_egl_native->event_timer);
backend_egl_native->event_timer = NULL;
}
egl: First attempt at cleaning up the EGL native backend At least, let's make it compile when built along with the other backends. In reality, it still needs to be verified as working.
2011-10-03 11:25:53 +00:00
#ifdef HAVE_TSLIB
_clutter_events_tslib_uninit (CLUTTER_BACKEND (gobject));
#endif
#ifdef HAVE_EVDEV
_clutter_events_evdev_uninit (CLUTTER_BACKEND (gobject));
if (backend_egl_native->device_manager != NULL)
{
g_object_unref (backend_egl_native->device_manager);
backend_egl_native->device_manager = NULL;
}
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
#endif
egl: First attempt at cleaning up the EGL native backend At least, let's make it compile when built along with the other backends. In reality, it still needs to be verified as working.
2011-10-03 11:25:53 +00:00
G_OBJECT_CLASS (clutter_backend_egl_native_parent_class)->dispose (gobject);
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
}
static ClutterStageWindow *
clutter_backend_egl_native_create_stage (ClutterBackend *backend,
ClutterStage *wrapper,
GError **error)
{
ClutterBackendEglNative *backend_egl_native = CLUTTER_BACKEND_EGL_NATIVE (backend);
ClutterStageWindow *stage;
if (G_UNLIKELY (backend_egl_native->stage != NULL))
{
g_set_error (error, CLUTTER_INIT_ERROR,
CLUTTER_INIT_ERROR_BACKEND,
"The EglNative backend does not support multiple "
"onscreen windows");
return backend_egl_native->stage;
}
stage = g_object_new (CLUTTER_TYPE_STAGE_COGL,
"backend", backend,
"wrapper", wrapper,
NULL);
backend_egl_native->stage = stage;
return stage;
}
static gboolean
clutter_backend_egl_native_create_context (ClutterBackend *backend,
GError **error)
{
CoglSwapChain *swap_chain = NULL;
CoglOnscreenTemplate *onscreen_template = NULL;
if (backend->cogl_context != NULL)
return TRUE;
backend->cogl_renderer = cogl_renderer_new ();
if (!cogl_renderer_connect (backend->cogl_renderer, error))
goto error;
swap_chain = cogl_swap_chain_new ();
egl: First attempt at cleaning up the EGL native backend At least, let's make it compile when built along with the other backends. In reality, it still needs to be verified as working.
2011-10-03 11:25:53 +00:00
#if defined(CLUTTER_EGL_BACKEND_CEX100) && defined(COGL_HAS_GDL_SUPPORT)
cogl_swap_chain_set_length (swap_chain, gdl_n_buffers);
#endif
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
onscreen_template = cogl_onscreen_template_new (swap_chain);
cogl_object_unref (swap_chain);
/* XXX: I have some doubts that this is a good design.
* Conceptually should we be able to check an onscreen_template
* without more details about the CoglDisplay configuration?
*/
if (!cogl_renderer_check_onscreen_template (backend->cogl_renderer,
onscreen_template,
error))
goto error;
backend->cogl_display = cogl_display_new (backend->cogl_renderer,
onscreen_template);
egl: First attempt at cleaning up the EGL native backend At least, let's make it compile when built along with the other backends. In reality, it still needs to be verified as working.
2011-10-03 11:25:53 +00:00
#if defined(CLUTTER_EGL_BACKEND_CEX100) && defined(COGL_HAS_GDL_SUPPORT)
cogl_gdl_display_set_plane (backend->cogl_display, gdl_plane);
Implement multi-backend support The Clutter backend split is opaque enough that should allow us to just build all possible backends inside the same shared object, and select the wanted backend at initialization time. This requires some work in the build system, as well as the initialization code, to remove duplicate functions that might cause conflicts at build and link time. We also need to defer all the checks of the internal state of the platform-specific API to run-time type checks.
2011-09-21 17:05:03 +00:00
#endif /* CLUTTER_EGL_BACKEND_CEX100 */
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
cogl_object_unref (backend->cogl_renderer);
cogl_object_unref (onscreen_template);
if (!cogl_display_setup (backend->cogl_display, error))
goto error;
backend->cogl_context = cogl_context_new (backend->cogl_display, error);
if (backend->cogl_context == NULL)
goto error;
return TRUE;
error:
if (backend->cogl_display != NULL)
{
cogl_object_unref (backend->cogl_display);
backend->cogl_display = NULL;
}
if (onscreen_template != NULL)
cogl_object_unref (onscreen_template);
egl: First attempt at cleaning up the EGL native backend At least, let's make it compile when built along with the other backends. In reality, it still needs to be verified as working.
2011-10-03 11:25:53 +00:00
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
if (swap_chain != NULL)
cogl_object_unref (swap_chain);
if (backend->cogl_renderer != NULL)
{
cogl_object_unref (backend->cogl_renderer);
backend->cogl_renderer = NULL;
}
egl: First attempt at cleaning up the EGL native backend At least, let's make it compile when built along with the other backends. In reality, it still needs to be verified as working.
2011-10-03 11:25:53 +00:00
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
return FALSE;
}
static void
egl: First attempt at cleaning up the EGL native backend At least, let's make it compile when built along with the other backends. In reality, it still needs to be verified as working.
2011-10-03 11:25:53 +00:00
clutter_backend_egl_native_class_init (ClutterBackendEglNativeClass *klass)
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
ClutterBackendClass *backend_class = CLUTTER_BACKEND_CLASS (klass);
egl: First attempt at cleaning up the EGL native backend At least, let's make it compile when built along with the other backends. In reality, it still needs to be verified as working.
2011-10-03 11:25:53 +00:00
gobject_class->dispose = clutter_backend_egl_native_dispose;
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
backend_class->get_device_manager = clutter_backend_egl_native_get_device_manager;
egl: First attempt at cleaning up the EGL native backend At least, let's make it compile when built along with the other backends. In reality, it still needs to be verified as working.
2011-10-03 11:25:53 +00:00
backend_class->create_stage = clutter_backend_egl_native_create_stage;
backend_class->create_context = clutter_backend_egl_native_create_context;
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
}
static void
egl: First attempt at cleaning up the EGL native backend At least, let's make it compile when built along with the other backends. In reality, it still needs to be verified as working.
2011-10-03 11:25:53 +00:00
clutter_backend_egl_native_init (ClutterBackendEglNative *backend_egl_native)
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
{
backend_egl_native->event_timer = g_timer_new ();
}
egl: First attempt at cleaning up the EGL native backend At least, let's make it compile when built along with the other backends. In reality, it still needs to be verified as working.
2011-10-03 11:25:53 +00:00
#ifdef CLUTTER_EGL_BACKEND_CEX100
Implement multi-backend support The Clutter backend split is opaque enough that should allow us to just build all possible backends inside the same shared object, and select the wanted backend at initialization time. This requires some work in the build system, as well as the initialization code, to remove duplicate functions that might cause conflicts at build and link time. We also need to defer all the checks of the internal state of the platform-specific API to run-time type checks.
2011-09-21 17:05:03 +00:00
/**
* clutter_cex100_set_plane:
* @plane: FIXME
*
* FIXME
*
* Since:
*/
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
void
clutter_cex100_set_plane (gdl_plane_id_t plane)
{
g_return_if_fail (plane >= GDL_PLANE_ID_UPP_A && plane <= GDL_PLANE_ID_UPP_E);
gdl_plane = plane;
}
egl: First attempt at cleaning up the EGL native backend At least, let's make it compile when built along with the other backends. In reality, it still needs to be verified as working.
2011-10-03 11:25:53 +00:00
#endif
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
egl: First attempt at cleaning up the EGL native backend At least, let's make it compile when built along with the other backends. In reality, it still needs to be verified as working.
2011-10-03 11:25:53 +00:00
#ifdef CLUTTER_EGL_BACKEND_CEX100
Implement multi-backend support The Clutter backend split is opaque enough that should allow us to just build all possible backends inside the same shared object, and select the wanted backend at initialization time. This requires some work in the build system, as well as the initialization code, to remove duplicate functions that might cause conflicts at build and link time. We also need to defer all the checks of the internal state of the platform-specific API to run-time type checks.
2011-09-21 17:05:03 +00:00
/**
* clutter_cex100_set_plane:
* @mode: FIXME
*
* FIXME
*
* Since:
*/
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
void
clutter_cex100_set_buffering_mode (ClutterCex100BufferingMode mode)
{
g_return_if_fail (mode == CLUTTER_CEX100_DOUBLE_BUFFERING ||
mode == CLUTTER_CEX100_TRIPLE_BUFFERING);
gdl_n_buffers = mode;
egl: First attempt at cleaning up the EGL native backend At least, let's make it compile when built along with the other backends. In reality, it still needs to be verified as working.
2011-10-03 11:25:53 +00:00
}
#endif
/**
* clutter_eglx_display:
*
* Retrieves the EGL display used by Clutter.
*
* Return value: the EGL display, or 0
*
* Since: 0.6
*
* Deprecated: 1.6: Use clutter_egl_get_egl_display() instead.
*/
EGLDisplay
clutter_eglx_display (void)
{
return clutter_egl_get_egl_display ();
}
/**
* clutter_egl_display:
*
* Retrieves the EGL display used by Clutter.
*
* Return value: the EGL display used by Clutter, or 0
*
* Since: 0.6
*
* Deprecated: 1.6: Use clutter_egl_get_egl_display() instead.
*/
EGLDisplay
clutter_egl_display (void)
{
return clutter_egl_get_egl_display ();
}
/**
* clutter_egl_get_egl_display:
*
* Retrieves the EGL display used by Clutter, if it supports the
* EGL windowing system and if it is running using an EGL backend.
*
* Return value: the EGL display used by Clutter, or 0
*
* Since: 1.6
*/
EGLDisplay
clutter_egl_get_egl_display (void)
{
ClutterBackend *backend;
if (!_clutter_context_is_initialized ())
{
g_critical ("The Clutter backend has not been initialized yet");
return 0;
}
backend = clutter_get_default_backend ();
if (!CLUTTER_IS_BACKEND_EGL_NATIVE (backend))
{
g_critical ("The Clutter backend is not an EGL backend");
return 0;
}
#if COGL_HAS_EGL_SUPPORT
return cogl_egl_context_get_egl_display (backend->cogl_context);
#else
return 0;
Rework the interaction between the Cogl and GDK / X11 backends. Previously, the Cogl backend was at times a subclass of the X11 backend, and at times a standalone one. Now it is the other way round, with GDK and X11 backends providing the concrete classes, layered on top of the generic Cogl backend. A new EglNative backend was introduced for direct to framebuffer rendering. This greatly simplifies the API design (at the expense of some casts needed) and reduces the amount of #ifdefs, without duplicating code. https://bugzilla.gnome.org/show_bug.cgi?id=657434
2011-08-26 22:16:12 +00:00
#endif
Implement multi-backend support The Clutter backend split is opaque enough that should allow us to just build all possible backends inside the same shared object, and select the wanted backend at initialization time. This requires some work in the build system, as well as the initialization code, to remove duplicate functions that might cause conflicts at build and link time. We also need to defer all the checks of the internal state of the platform-specific API to run-time type checks.
2011-09-21 17:05:03 +00:00
}
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