mutter/cogl/cogl-onscreen-private.h
Neil Roberts 534e535a28 Use the Wayland embedded linked list implementation instead of BSD's
This removes cogl-queue.h and adds a copy of Wayland's embedded list
implementation. The advantage of the Wayland model is that it is much
simpler and so it is easier to follow. It also doesn't require
defining a typedef for every list type.

The downside is that there is only one list type which is a
doubly-linked list where the head has a pointer to both the beginning
and the end. The BSD implementation has many more combinations some of
which we were taking advantage of to reduce the size of critical
structs where we didn't need a pointer to the end of the list.

The corresponding changes to uses of cogl-queue.h are:

• COGL_STAILQ_* was used for onscreen the list of events and dirty
  notifications. This makes the size of the CoglContext grow by one
  pointer.

• COGL_TAILQ_* was used for fences.

• COGL_LIST_* for CoglClosures. In this case the list head now has an
  extra pointer which means CoglOnscreen will grow by the size of
  three pointers, but this doesn't seem like a particularly important
  struct to optimise for size anyway.

• COGL_LIST_* was used for the list of foreign GLES2 offscreens.

• COGL_TAILQ_* was used for the list of sub stacks in a
  CoglMemoryStack.

• COGL_LIST_* was used to track the list of layers that haven't had
  code generated yet while generating a fragment shader for a
  pipeline.

• COGL_LIST_* was used to track the pipeline hierarchy in CoglNode.

The last part is a bit more controversial because it increases the
size of CoglPipeline and CoglPipelineLayer by one pointer in order to
have the redundant tail pointer for the list head. Normally we try to
be very careful about the size of the CoglPipeline struct. Because
CoglPipeline is slice-allocated, this effectively ends up adding two
pointers to the size because GSlice rounds up to the size of two
pointers.

Reviewed-by: Robert Bragg <robert@linux.intel.com>

(cherry picked from commit 13abf613b15f571ba1fcf6d2eb831ffc6fa31324)

Conflicts:
	cogl/cogl-context-private.h
	cogl/cogl-context.c
	cogl/driver/gl/cogl-pipeline-fragend-glsl.c
	doc/reference/cogl-2.0-experimental/Makefile.am
2013-06-13 13:45:47 +01:00

116 lines
2.7 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2011,2013 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-onscreen.h"
#include "cogl-framebuffer-private.h"
#include "cogl-closure-list-private.h"
#include "cogl-list.h"
#include <glib.h>
#ifdef COGL_HAS_WIN32_SUPPORT
#include <windows.h>
#endif
typedef struct _CoglOnscreenEvent
{
CoglList link;
CoglOnscreen *onscreen;
CoglFrameInfo *info;
CoglFrameEvent type;
} CoglOnscreenEvent;
typedef struct _CoglOnscreenQueuedDirty
{
CoglList link;
CoglOnscreen *onscreen;
CoglOnscreenDirtyInfo info;
} CoglOnscreenQueuedDirty;
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
#ifdef COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT
struct wl_surface *foreign_surface;
#endif
CoglBool swap_throttled;
CoglList frame_closures;
CoglBool resizable;
CoglList resize_closures;
CoglList dirty_closures;
int64_t frame_counter;
int64_t swap_frame_counter; /* frame counter at last all to
* cogl_onscreen_swap_region() or
* cogl_onscreen_swap_buffers() */
GQueue pending_frame_infos;
void *winsys;
};
CoglOnscreen *
_cogl_onscreen_new (void);
void
_cogl_framebuffer_winsys_update_size (CoglFramebuffer *framebuffer,
int width, int height);
void
_cogl_onscreen_notify_frame_sync (CoglOnscreen *onscreen, CoglFrameInfo *info);
void
_cogl_onscreen_notify_complete (CoglOnscreen *onscreen, CoglFrameInfo *info);
void
_cogl_onscreen_notify_resize (CoglOnscreen *onscreen);
void
_cogl_onscreen_queue_dirty (CoglOnscreen *onscreen,
const CoglOnscreenDirtyInfo *info);
void
_cogl_onscreen_queue_full_dirty (CoglOnscreen *onscreen);
#endif /* __COGL_ONSCREEN_PRIVATE_H */