mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
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412b0c7b49
These helpers are obtained from the wlroots project at https://gitlab.freedesktop.org/wlroots/wlroots/
62 lines
2.4 KiB
C
62 lines
2.4 KiB
C
// Copyright (c) 2023 The wlroots contributors
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of
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// this software and associated documentation files (the "Software"), to deal in
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// the Software without restriction, including without limitation the rights to
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// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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// of the Software, and to permit persons to whom the Software is furnished to do
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// so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//
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// Obtained from https://gitlab.freedesktop.org/wlroots/wlroots/
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/* SPDX-FileCopyrightText: Copyright © 2023 The wlroots contributors */
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/* SPDX-License-Identifier: MIT */
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#ifndef RENDER_DMABUF_H
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#define RENDER_DMABUF_H
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#include <stdbool.h>
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#include <stdint.h>
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#include "spa/support/log.h"
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// Copied from <linux/dma-buf.h> to avoid #ifdef soup
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#define DMA_BUF_SYNC_READ (1 << 0)
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#define DMA_BUF_SYNC_WRITE (2 << 0)
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#define DMA_BUF_SYNC_RW (DMA_BUF_SYNC_READ | DMA_BUF_SYNC_WRITE)
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/**
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* Check whether DMA-BUF import/export from/to sync_file is available.
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*
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* If this function returns true, dmabuf_import_sync_file() is supported.
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*/
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bool dmabuf_check_sync_file_import_export(struct spa_log *log);
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/**
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* Import a sync_file into a DMA-BUF with DMA_BUF_IOCTL_IMPORT_SYNC_FILE.
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*
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* This can be used to make explicit sync interoperate with implicit sync.
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*/
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bool dmabuf_import_sync_file(struct spa_log *log, int dmabuf_fd, uint32_t flags, int sync_file_fd);
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/**
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* Export a sync_file from a DMA-BUF with DMA_BUF_IOCTL_EXPORT_SYNC_FILE.
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*
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* The sync_file FD is returned on success, -1 is returned on error.
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*
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* This can be used to make explicit sync interoperate with implicit sync.
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*/
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int dmabuf_export_sync_file(struct spa_log *log, int dmabuf_fd, uint32_t flags);
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#endif
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