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mutter-performance-source/cogl/cogl-onscreen-private.h
Robert Bragg df51574116 onscreen: Adds support for resizable windows
This adds api to be able to request that the window system allows a
given onscreen framebuffer to be resizable, and api to add and remove
resize handlers to be called whenever the framebuffer does actually
change size.

The new functions are:
  cogl_onscreen_{get,set}_resizable()
  cogl_onscreen_{add,remove}_resize_handler()

The examples cogl-hello and cogl-x11-foreign have been updated to use
the new api. To smoke test how Cogl updates the viewport automatically
in response to window resizes the cogl-hello test doesn't explicitly
respond to resize events by setting the viewport and cogl-x11-foreign
responds by setting a viewport that is offset by a quarter of the
window's width/height and half the width and height of the window.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit a1a8cc00bfa2cecaf1007aec5f3dd95dc07b1786)
2012-08-06 18:51:32 +01:00

99 lines
2.3 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2011 Intel Corporation.
*
* 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/>.
*
*
*/
#ifndef __COGL_ONSCREEN_PRIVATE_H
#define __COGL_ONSCREEN_PRIVATE_H
#include "cogl-framebuffer-private.h"
#include "cogl-queue.h"
#include <glib.h>
#ifdef COGL_HAS_WIN32_SUPPORT
#include <windows.h>
#endif
typedef struct _CoglSwapBuffersNotifyEntry CoglSwapBuffersNotifyEntry;
COGL_TAILQ_HEAD (CoglSwapBuffersNotifyList, CoglSwapBuffersNotifyEntry);
struct _CoglSwapBuffersNotifyEntry
{
COGL_TAILQ_ENTRY (CoglSwapBuffersNotifyEntry) list_node;
CoglSwapBuffersNotify callback;
void *user_data;
unsigned int id;
};
typedef struct _CoglResizeNotifyEntry CoglResizeNotifyEntry;
COGL_TAILQ_HEAD (CoglResizeNotifyList, CoglResizeNotifyEntry);
struct _CoglResizeNotifyEntry
{
COGL_TAILQ_ENTRY (CoglResizeNotifyEntry) list_node;
CoglOnscreenResizeCallback callback;
void *user_data;
unsigned int id;
};
struct _CoglOnscreen
{
CoglFramebuffer _parent;
#ifdef COGL_HAS_X11_SUPPORT
uint32_t foreign_xid;
CoglOnscreenX11MaskCallback foreign_update_mask_callback;
void *foreign_update_mask_data;
#endif
#ifdef COGL_HAS_WIN32_SUPPORT
HWND foreign_hwnd;
#endif
CoglBool swap_throttled;
CoglSwapBuffersNotifyList swap_callbacks;
CoglBool resizable;
CoglResizeNotifyList resize_callbacks;
void *winsys;
};
CoglOnscreen *
_cogl_onscreen_new (void);
void
_cogl_framebuffer_winsys_update_size (CoglFramebuffer *framebuffer,
int width, int height);
void
_cogl_onscreen_notify_swap_buffers (CoglOnscreen *onscreen);
void
_cogl_onscreen_notify_resize (CoglOnscreen *onscreen);
#endif /* __COGL_ONSCREEN_PRIVATE_H */