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ui/console: new dmabuf.h and dmabuf.c for QemuDmaBuf struct and helpers

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New header and source files are added for containing QemuDmaBuf struct
definition and newly introduced helpers for creating/freeing the struct
and accessing its data.

v10: Change the license type for both dmabuf.h and dmabuf.c from MIT to
     GPL to be in line with QEMU's default license

v11: -- Added new helpers, qemu_dmabuf_close for closing dmabuf->fd,
        qemu_dmabuf_dup_fd for duplicating dmabuf->fd
        (Daniel P. Berrangé <berrange@redhat.com>)

     -- Let qemu_dmabuf_fee to call qemu_dmabuf_close before freeing
        the struct to make sure fd is closed.
        (Daniel P. Berrangé <berrange@redhat.com>)

v12: Not closing fd in qemu_dmabuf_free because there are cases fd
     should still be available even after the struct is destroyed
     (e.g. virtio-gpu: res->dmabuf_fd).

Suggested-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Cc: Philippe Mathieu-Daudé <philmd@linaro.org>
Cc: Daniel P. Berrangé <berrange@redhat.com>
Cc: Vivek Kasireddy <vivek.kasireddy@intel.com>
Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
Message-Id: <20240508175403.3399895-3-dongwon.kim@intel.com>
This commit is contained in:
Dongwon Kim 2024-05-08 10:53:59 -07:00 • committed by Marc-André Lureau
parent e4e62514e3
commit 6e6ae491da
4 changed files with 278 additions and 19 deletions
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66
include/ui/dmabuf.h Normal file
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/*
* SPDX-License-Identifier: GPL-2.0-or-later
*
* QemuDmaBuf struct and helpers used for accessing its data
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef DMABUF_H
#define DMABUF_H
typedef struct QemuDmaBuf {
int fd;
uint32_t width;
uint32_t height;
uint32_t stride;
uint32_t fourcc;
uint64_t modifier;
uint32_t texture;
uint32_t x;
uint32_t y;
uint32_t backing_width;
uint32_t backing_height;
bool y0_top;
void *sync;
int fence_fd;
bool allow_fences;
bool draw_submitted;
} QemuDmaBuf;
QemuDmaBuf *qemu_dmabuf_new(uint32_t width, uint32_t height,
uint32_t stride, uint32_t x,
uint32_t y, uint32_t backing_width,
uint32_t backing_height, uint32_t fourcc,
uint64_t modifier, int dmabuf_fd,
bool allow_fences, bool y0_top);
void qemu_dmabuf_free(QemuDmaBuf *dmabuf);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(QemuDmaBuf, qemu_dmabuf_free);
int qemu_dmabuf_get_fd(QemuDmaBuf *dmabuf);
int qemu_dmabuf_dup_fd(QemuDmaBuf *dmabuf);
void qemu_dmabuf_close(QemuDmaBuf *dmabuf);
uint32_t qemu_dmabuf_get_width(QemuDmaBuf *dmabuf);
uint32_t qemu_dmabuf_get_height(QemuDmaBuf *dmabuf);
uint32_t qemu_dmabuf_get_stride(QemuDmaBuf *dmabuf);
uint32_t qemu_dmabuf_get_fourcc(QemuDmaBuf *dmabuf);
uint64_t qemu_dmabuf_get_modifier(QemuDmaBuf *dmabuf);
uint32_t qemu_dmabuf_get_texture(QemuDmaBuf *dmabuf);
uint32_t qemu_dmabuf_get_x(QemuDmaBuf *dmabuf);
uint32_t qemu_dmabuf_get_y(QemuDmaBuf *dmabuf);
uint32_t qemu_dmabuf_get_backing_width(QemuDmaBuf *dmabuf);
uint32_t qemu_dmabuf_get_backing_height(QemuDmaBuf *dmabuf);
bool qemu_dmabuf_get_y0_top(QemuDmaBuf *dmabuf);
void *qemu_dmabuf_get_sync(QemuDmaBuf *dmabuf);
int32_t qemu_dmabuf_get_fence_fd(QemuDmaBuf *dmabuf);
bool qemu_dmabuf_get_allow_fences(QemuDmaBuf *dmabuf);
bool qemu_dmabuf_get_draw_submitted(QemuDmaBuf *dmabuf);
void qemu_dmabuf_set_texture(QemuDmaBuf *dmabuf, uint32_t texture);
void qemu_dmabuf_set_fence_fd(QemuDmaBuf *dmabuf, int32_t fence_fd);
void qemu_dmabuf_set_sync(QemuDmaBuf *dmabuf, void *sync);
void qemu_dmabuf_set_draw_submitted(QemuDmaBuf *dmabuf, bool draw_submitted);
void qemu_dmabuf_set_fd(QemuDmaBuf *dmabuf, int32_t fd);
#endif