mutter/src/wayland/meta-wayland-dma-buf.h
Michel Dänzer d43150573e wayland/dma-buf: Add meta_wayland_dma_buf_create_source
Creates a GSource which will call the specified dispatch callback when
all dma-buf file descriptors for the buffer have become readable.

v2:
* Hold a reference to the buffer in the source, to prevent the buffer
  from getting destroyed before the source.
v3:
* Do not use check callback, handle everything in dispatch callback.
  (Dor Askayo)
v4: (Georges Basile Stavracas Neto)
* Define and use MetaWaylandDmaBufSource & MetaWaylandDmaBufSourceDispatch
  types.
* Fix meta_wayland_dma_buf_source_dispatch &
  meta_wayland_dma_buf_source_funcs formatting.
* Use gpointer instead of void*.
* Rename meta_wayland_dma_buf_get_source to
  meta_wayland_dma_buf_create_source. (Carlos Garnacho)
v5:
* Explicitly handle NULL return value. (Jonas Ådahl)
v6:
* Fix style issue per check-style.py.
v7:
* Fix code style harder. (Jonas Ådahl)

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 09:40:38 +01:00

73 lines
2.8 KiB
C

/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2016 Red Hat Inc.
* Copyright (C) 2017 Intel Corporation
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* Written by:
* Jonas Ådahl <jadahl@gmail.com>
* Daniel Stone <daniels@collabora.com>
*/
#ifndef META_WAYLAND_DMA_BUF_H
#define META_WAYLAND_DMA_BUF_H
#include <glib.h>
#include <glib-object.h>
#include "cogl/cogl.h"
#include "wayland/meta-wayland-types.h"
#define META_TYPE_WAYLAND_DMA_BUF_BUFFER (meta_wayland_dma_buf_buffer_get_type ())
G_DECLARE_FINAL_TYPE (MetaWaylandDmaBufBuffer, meta_wayland_dma_buf_buffer,
META, WAYLAND_DMA_BUF_BUFFER, GObject);
#define META_TYPE_WAYLAND_DMA_BUF_MANAGER (meta_wayland_dma_buf_manager_get_type ())
G_DECLARE_FINAL_TYPE (MetaWaylandDmaBufManager, meta_wayland_dma_buf_manager,
META, WAYLAND_DMA_BUF_MANAGER, GObject)
typedef struct _MetaWaylandDmaBufBuffer MetaWaylandDmaBufBuffer;
MetaWaylandDmaBufManager * meta_wayland_dma_buf_manager_new (MetaWaylandCompositor *compositor,
GError **error);
gboolean
meta_wayland_dma_buf_buffer_attach (MetaWaylandBuffer *buffer,
CoglTexture **texture,
GError **error);
MetaWaylandDmaBufBuffer *
meta_wayland_dma_buf_fds_for_wayland_buffer (MetaWaylandBuffer *buffer);
MetaWaylandDmaBufBuffer *
meta_wayland_dma_buf_from_buffer (MetaWaylandBuffer *buffer);
typedef void (*MetaWaylandDmaBufSourceDispatch) (MetaWaylandBuffer *buffer,
gpointer user_data);
GSource *
meta_wayland_dma_buf_create_source (MetaWaylandBuffer *buffer,
MetaWaylandDmaBufSourceDispatch dispatch,
gpointer user_data);
CoglScanout *
meta_wayland_dma_buf_try_acquire_scanout (MetaWaylandDmaBufBuffer *dma_buf,
CoglOnscreen *onscreen);
#endif /* META_WAYLAND_DMA_BUF_H */