forked from AuroraMiddleware/gtk
430b6f8fb1
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().
121 lines
5.6 KiB
C
121 lines
5.6 KiB
C
/* GDK - The GIMP Drawing Kit
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*
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* gdkglcontext-x11.h: Private X11 specific OpenGL wrappers
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*
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* Copyright © 2014 Emmanuele Bassi
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __GDK_X11_GL_CONTEXT__
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#define __GDK_X11_GL_CONTEXT__
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#include "gdkx11glcontext.h"
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#include <X11/X.h>
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#include <X11/Xlib.h>
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#ifdef HAVE_XDAMAGE
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#include <X11/extensions/Xdamage.h>
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#endif
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#include <epoxy/gl.h>
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#include <epoxy/glx.h>
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#include "gdkglcontextprivate.h"
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#include "gdkdisplay-x11.h"
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#include "gdksurface.h"
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#include "gdkinternals.h"
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G_BEGIN_DECLS
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#define GDK_X11_GL_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_X11_GL_CONTEXT, GdkX11GLContextClass))
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#define GDK_X11_GL_CONTEXT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_X11_GL_CONTEXT, GdkX11GLContextClass))
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#define GDK_X11_IS_GL_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_X11_GL_CONTEXT))
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struct _GdkX11GLContext
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{
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GdkGLContext parent_instance;
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guint do_frame_sync : 1;
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guint is_attached : 1;
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};
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struct _GdkX11GLContextClass
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{
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GdkGLContextClass parent_class;
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void (* bind_for_frame_fence) (GdkX11GLContext *self);
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};
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gboolean gdk_x11_display_init_gl_backend (GdkX11Display *self,
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Visual **out_visual,
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int *out_depth,
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GError **error);
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GdkGLContext * gdk_x11_surface_create_gl_context (GdkSurface *window,
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gboolean attached,
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GdkGLContext *share,
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GError **error);
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gboolean gdk_x11_display_make_gl_context_current (GdkDisplay *display,
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GdkGLContext *context);
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/* GLX */
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#define GDK_TYPE_X11_GL_CONTEXT_GLX (gdk_x11_gl_context_glx_get_type())
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#define GDK_X11_GL_CONTEXT_GLX(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GDK_TYPE_X11_GL_CONTEXT_GLX, GdkX11GLContextGLX))
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#define GDK_IS_X11_GL_CONTEXT_GLX(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GDK_TYPE_X11_GL_CONTEXT_GLX))
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typedef struct _GdkX11GLContextGLX GdkX11GLContextGLX;
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gboolean gdk_x11_display_init_glx (GdkX11Display *display_x11,
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Visual **out_visual,
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int *out_depth,
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GError **error);
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void gdk_x11_surface_destroy_glx_drawable (GdkX11Surface *self);
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GType gdk_x11_gl_context_glx_get_type (void) G_GNUC_CONST;
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GdkX11GLContext * gdk_x11_gl_context_glx_new (GdkSurface *surface,
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gboolean attached,
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GdkGLContext *share,
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GError **error);
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gboolean gdk_x11_gl_context_glx_make_current (GdkDisplay *display,
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GdkGLContext *context);
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/* EGL */
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#define GDK_TYPE_X11_GL_CONTEXT_EGL (gdk_x11_gl_context_egl_get_type())
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#define GDK_X11_GL_CONTEXT_EGL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GDK_TYPE_X11_GL_CONTEXT_EGL, GdkX11GLContextEGL))
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#define GDK_IS_X11_GL_CONTEXT_EGL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GDK_TYPE_X11_GL_CONTEXT_EGL))
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typedef struct _GdkX11GLContextEGL GdkX11GLContextEGL;
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gboolean gdk_x11_display_init_egl (GdkX11Display *display_x11,
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gboolean force,
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Visual **out_visual,
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int *out_depth,
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GError **error);
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void gdk_x11_surface_destroy_egl_surface (GdkX11Surface *self);
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GType gdk_x11_gl_context_egl_get_type (void) G_GNUC_CONST;
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GdkX11GLContext * gdk_x11_gl_context_egl_new (GdkSurface *surface,
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gboolean attached,
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GdkGLContext *share,
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GError **error);
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gboolean gdk_x11_gl_context_egl_make_current (GdkDisplay *display,
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GdkGLContext *context);
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G_END_DECLS
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#endif /* __GDK_X11_GL_CONTEXT__ */
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