gtk2/gdk/wayland/gdkglcontext-wayland.h
Benjamin Otte 430b6f8fb1 gdk: Add GdkDisplay::init_gl vfunc
The vfunc is called to initialize GL and it returns a "base" context
that GDK then uses as the context all others are shared with. So the GL
context share tree now looks like:

+ context from init_gl
  - context1
  - context2
  ...

So this is a flat tree now, the complexity is gone.

The only caveat is that backends now need to create a GL context when
initializing GL so some refactoring was needed.

Two new functions have been added:

* gdk_display_prepare_gl()
  This is public API and can be used to ensure that GL has been
  initialized or if not, retrieve an error to display (or debug-print).
* gdk_display_get_gl_context()
  This is a private function to retrieve the base context from
  init_gl(). It replaces gdk_surface_get_shared_data_context().
2021-07-22 16:23:56 +02:00

59 lines
2.0 KiB
C

/* GDK - The GIMP Drawing Kit
*
* gdkglcontext-wayland.h: Private Wayland specific OpenGL wrappers
*
* Copyright © 2014 Emmanuele Bassi
* Copyright © 2014 Red Hat, Int
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __GDK_WAYLAND_GL_CONTEXT__
#define __GDK_WAYLAND_GL_CONTEXT__
#include "gdkglcontextprivate.h"
#include "gdkdisplayprivate.h"
#include "gdksurface.h"
#include "gdkinternals.h"
#include <epoxy/egl.h>
G_BEGIN_DECLS
struct _GdkWaylandGLContext
{
GdkGLContext parent_instance;
EGLContext egl_context;
gboolean is_attached;
};
struct _GdkWaylandGLContextClass
{
GdkGLContextClass parent_class;
};
GdkGLContext * gdk_wayland_display_init_gl (GdkDisplay *display,
GError **error);
GdkGLContext * gdk_wayland_surface_create_gl_context (GdkSurface *surface,
gboolean attach,
GdkGLContext *share,
GError **error);
gboolean gdk_wayland_display_make_gl_context_current (GdkDisplay *display,
GdkGLContext *context);
G_END_DECLS
#endif /* __GDK_WAYLAND_GL_CONTEXT__ */