d0944b8fbd
This adds a callback that can be registered with cogl_onscreen_add_dirty_callback which will get called whenever the window system determines that the contents of the window is dirty and needs to be redrawn. Under the two X-based winsys's, this is reported off the back of the Expose events, under SDL it is reported from SDL_VIDEOEXPOSE or SDL_WINDOWEVENT_EXPOSED and under Windows from the WM_PAINT messages. The Wayland winsys doesn't really have the concept of dirtying the buffer but in order to allow applications to work the same way on all platforms it will emit the event when the surface is first shown and whenever it is resized. There is a private feature flag to specify whether dirty events are supported. If the winsys does not set this then Cogl will simulate dirty events by emitting one when the window is first allocated and when it is resized. The only winsys's that don't set this flag are things like KMS or the EGL null winsys where there is no windowing system and showing and hiding the onscreen doesn't really make any sense. In that case Cogl can assume the buffer will only become dirty once when it is first allocated. Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 85c5a9ba419b2247bd768284c79ee69164a0c098) Conflicts: cogl/cogl-private.h
123 lines
3 KiB
C
123 lines
3 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) 2011,2013 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 <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#ifndef __COGL_ONSCREEN_PRIVATE_H
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#define __COGL_ONSCREEN_PRIVATE_H
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#include "cogl-onscreen.h"
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#include "cogl-framebuffer-private.h"
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#include "cogl-queue.h"
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#include "cogl-closure-list-private.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
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typedef struct _CoglOnscreenEvent CoglOnscreenEvent;
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COGL_TAILQ_HEAD (CoglOnscreenEventList, CoglOnscreenEvent);
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struct _CoglOnscreenEvent
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{
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COGL_TAILQ_ENTRY (CoglOnscreenEvent) list_node;
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CoglOnscreen *onscreen;
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CoglFrameInfo *info;
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CoglFrameEvent type;
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};
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typedef struct _CoglOnscreenQueuedDirty CoglOnscreenQueuedDirty;
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COGL_TAILQ_HEAD (CoglOnscreenQueuedDirtyList, CoglOnscreenQueuedDirty);
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struct _CoglOnscreenQueuedDirty
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{
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COGL_TAILQ_ENTRY (CoglOnscreenQueuedDirty) list_node;
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CoglOnscreen *onscreen;
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CoglOnscreenDirtyInfo info;
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};
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struct _CoglOnscreen
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{
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CoglFramebuffer _parent;
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#ifdef COGL_HAS_X11_SUPPORT
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uint32_t foreign_xid;
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CoglOnscreenX11MaskCallback foreign_update_mask_callback;
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void *foreign_update_mask_data;
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#endif
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#ifdef COGL_HAS_WIN32_SUPPORT
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HWND foreign_hwnd;
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#endif
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#ifdef COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT
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struct wl_surface *foreign_surface;
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#endif
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CoglBool swap_throttled;
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CoglClosureList frame_closures;
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CoglBool resizable;
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CoglClosureList resize_closures;
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CoglClosureList dirty_closures;
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int64_t frame_counter;
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int64_t swap_frame_counter; /* frame counter at last all to
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* cogl_onscreen_swap_region() or
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* cogl_onscreen_swap_buffers() */
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GQueue pending_frame_infos;
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void *winsys;
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};
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CoglOnscreen *
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_cogl_onscreen_new (void);
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void
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_cogl_framebuffer_winsys_update_size (CoglFramebuffer *framebuffer,
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int width, int height);
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void
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_cogl_onscreen_notify_frame_sync (CoglOnscreen *onscreen, CoglFrameInfo *info);
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void
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_cogl_onscreen_notify_complete (CoglOnscreen *onscreen, CoglFrameInfo *info);
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void
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_cogl_onscreen_notify_resize (CoglOnscreen *onscreen);
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void
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_cogl_onscreen_queue_dirty (CoglOnscreen *onscreen,
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const CoglOnscreenDirtyInfo *info);
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void
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_cogl_onscreen_queue_full_dirty (CoglOnscreen *onscreen);
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#endif /* __COGL_ONSCREEN_PRIVATE_H */
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