36 lines
1.0 KiB
C
36 lines
1.0 KiB
C
#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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// 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(void);
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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(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(int dmabuf_fd, uint32_t flags);
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#endif
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