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To support toolkits targeting wayland and using Cogl we allow toolkits to be responsible for connecting to a wayland display and asking Cogl to use the toolkit owned display and compositor object. Note: eventually the plan is that wayland will allow retrospective querying of objects so we won't need the foreign compositor API when Cogl can simply query it from the foreign display.
251 lines
8.4 KiB
C
251 lines
8.4 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2011 Intel Corporation.
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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 Lesser 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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*
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*
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* Authors:
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* Robert Bragg <robert@linux.intel.com>
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*/
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#ifndef __COGL_FRAMEBUFFER_H
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#define __COGL_FRAMEBUFFER_H
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#include <glib.h>
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#ifdef COGL_HAS_WIN32_SUPPORT
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#include <windows.h>
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#endif /* COGL_HAS_WIN32_SUPPORT */
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#if COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT
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#include <wayland-client.h>
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#endif /* COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT */
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G_BEGIN_DECLS
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#ifdef COGL_ENABLE_EXPERIMENTAL_API
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#define cogl_onscreen_new cogl_onscreen_new_EXP
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#define COGL_FRAMEBUFFER(X) ((CoglFramebuffer *)(X))
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#define cogl_framebuffer_allocate cogl_framebuffer_allocate_EXP
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gboolean
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cogl_framebuffer_allocate (CoglFramebuffer *framebuffer,
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GError **error);
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#define cogl_framebuffer_get_width cogl_framebuffer_get_width_EXP
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int
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cogl_framebuffer_get_width (CoglFramebuffer *framebuffer);
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#define cogl_framebuffer_get_height cogl_framebuffer_get_height_EXP
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int
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cogl_framebuffer_get_height (CoglFramebuffer *framebuffer);
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#define cogl_framebuffer_swap_buffers cogl_framebuffer_swap_buffers_EXP
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void
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cogl_framebuffer_swap_buffers (CoglFramebuffer *framebuffer);
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#define cogl_framebuffer_swap_region cogl_framebuffer_swap_region_EXP
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void
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cogl_framebuffer_swap_region (CoglFramebuffer *framebuffer,
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int *rectangles,
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int n_rectangles);
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typedef void (*CoglSwapBuffersNotify) (CoglFramebuffer *framebuffer,
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void *user_data);
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#define cogl_framebuffer_add_swap_buffers_callback \
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cogl_framebuffer_add_swap_buffers_callback_EXP
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unsigned int
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cogl_framebuffer_add_swap_buffers_callback (CoglFramebuffer *framebuffer,
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CoglSwapBuffersNotify callback,
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void *user_data);
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#define cogl_framebuffer_remove_swap_buffers_callback \
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cogl_framebuffer_remove_swap_buffers_callback_EXP
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void
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cogl_framebuffer_remove_swap_buffers_callback (CoglFramebuffer *framebuffer,
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unsigned int id);
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typedef struct _CoglOnscreen CoglOnscreen;
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#define COGL_ONSCREEN(X) ((CoglOnscreen *)(X))
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CoglOnscreen *
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cogl_onscreen_new (CoglContext *context, int width, int height);
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#ifdef COGL_HAS_X11
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typedef void (*CoglOnscreenX11MaskCallback) (CoglOnscreen *onscreen,
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guint32 event_mask,
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void *user_data);
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/**
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* cogl_onscreen_x11_set_foreign_window_xid:
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* @onscreen: The unallocated framebuffer to associated with an X
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* window.
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* @xid: The XID of an existing X window
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* @update: A callback that notifies of updates to what Cogl requires
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* to be in the core X protocol event mask.
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*
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* Ideally we would recommend that you let Cogl be responsible for
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* creating any X window required to back an onscreen framebuffer but
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* if you really need to target a window created manually this
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* function can be called before @onscreen has been allocated to set a
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* foreign XID for your existing X window.
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*
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* Since Cogl needs, for example, to track changes to the size of an X
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* window it requires that certain events be selected for via the core
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* X protocol. This requirement may also be changed asynchronously so
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* you must pass in an @update callback to inform you of Cogl's
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* required event mask.
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*
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* For example if you are using Xlib you could use this API roughly
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* as follows:
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* [{
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* static void
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* my_update_cogl_x11_event_mask (CoglOnscreen *onscreen,
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* guint32 event_mask,
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* void *user_data)
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* {
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* XSetWindowAttributes attrs;
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* MyData *data = user_data;
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* attrs.event_mask = event_mask | data->my_event_mask;
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* XChangeWindowAttributes (data->xdpy,
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* data->xwin,
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* CWEventMask,
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* &attrs);
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* }
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*
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* {
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* *snip*
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* cogl_onscreen_x11_set_foreign_window_xid (onscreen,
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* data->xwin,
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* my_update_cogl_x11_event_mask,
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* data);
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* *snip*
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* }
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* }]
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*
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* Since: 2.0
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* Stability: Unstable
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*/
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#define cogl_onscreen_x11_set_foreign_window_xid \
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cogl_onscreen_x11_set_foreign_window_xid_EXP
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void
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cogl_onscreen_x11_set_foreign_window_xid (CoglOnscreen *onscreen,
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guint32 xid,
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CoglOnscreenX11MaskCallback update,
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void *user_data);
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#define cogl_onscreen_x11_get_window_xid cogl_onscreen_x11_get_window_xid_EXP
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guint32
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cogl_onscreen_x11_get_window_xid (CoglOnscreen *onscreen);
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#define cogl_onscreen_x11_get_visual_xid cogl_onscreen_x11_get_visual_xid_EXP
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guint32
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cogl_onscreen_x11_get_visual_xid (CoglOnscreen *onscreen);
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#endif /* COGL_HAS_X11 */
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#ifdef COGL_HAS_WIN32_SUPPORT
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#define cogl_onscreen_win32_set_foreign_window \
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cogl_onscreen_win32_set_foreign_window_EXP
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void
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cogl_onscreen_win32_set_foreign_window (CoglOnscreen *onscreen,
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HWND hwnd);
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#define cogl_onscreen_win32_get_window cogl_onscreen_win32_get_window_EXP
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HWND
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cogl_onscreen_win32_get_window (CoglOnscreen *onscreen);
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#endif /* COGL_HAS_WIN32_SUPPORT */
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#if COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT
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struct wl_surface *
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cogl_wayland_onscreen_get_surface (CoglOnscreen *onscreen);
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#endif /* COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT */
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#define cogl_onscreen_set_swap_throttled cogl_onscreen_set_swap_throttled_EXP
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void
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cogl_onscreen_set_swap_throttled (CoglOnscreen *onscreen,
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gboolean throttled);
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/**
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* cogl_onscreen_show:
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* @onscreen: The onscreen framebuffer to make visible
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*
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* This requests to make @onscreen visible to the user.
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*
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* Actually the precise semantics of this function depend on the
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* window system currently in use, and if you don't have a
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* multi-windowining system this function may in-fact do nothing.
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*
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* This function will implicitly allocate the given @onscreen
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* framebuffer before showing it if it hasn't already been allocated.
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*
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* <note>Since Cogl doesn't explicitly track the visibility status of
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* onscreen framebuffers it wont try to avoid redundant window system
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* requests e.g. to show an already visible window. This also means
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* that it's acceptable to alternatively use native APIs to show and
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* hide windows without confusing Cogl.</note>
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*
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* Since: 2.0
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* Stability: Unstable
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*/
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#define cogl_onscreen_show cogl_onscreen_show_EXP
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void
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cogl_onscreen_show (CoglOnscreen *onscreen);
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/**
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* cogl_onscreen_hide:
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* @onscreen: The onscreen framebuffer to make invisible
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*
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* This requests to make @onscreen invisible to the user.
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*
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* Actually the precise semantics of this function depend on the
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* window system currently in use, and if you don't have a
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* multi-windowining system this function may in-fact do nothing.
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*
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* This function does not implicitly allocate the given @onscreen
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* framebuffer before hiding it.
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*
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* <note>Since Cogl doesn't explicitly track the visibility status of
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* onscreen framebuffers it wont try to avoid redundant window system
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* requests e.g. to show an already visible window. This also means
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* that it's acceptable to alternatively use native APIs to show and
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* hide windows without confusing Cogl.</note>
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*
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* Since: 2.0
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* Stability: Unstable
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*/
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#define cogl_onscreen_hide cogl_onscreen_hide_EXP
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void
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cogl_onscreen_hide (CoglOnscreen *onscreen);
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#define cogl_get_draw_framebuffer cogl_get_draw_framebuffer_EXP
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CoglFramebuffer *
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cogl_get_draw_framebuffer (void);
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#endif /* COGL_ENABLE_EXPERIMENTAL_API */
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G_END_DECLS
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#endif /* __COGL_FRAMEBUFFER_H */
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