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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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20
include/ui/console.h
View file

@ -7,6 +7,7 @@
#include "qapi/qapi-types-ui.h"
#include "ui/input.h"
#include "ui/surface.h"
#include "ui/dmabuf.h"
#define TYPE_QEMU_CONSOLE "qemu-console"
OBJECT_DECLARE_TYPE(QemuConsole, QemuConsoleClass, QEMU_CONSOLE)
@ -185,25 +186,6 @@ struct QEMUGLParams {
int minor_ver;
};
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;
enum display_scanout {
SCANOUT_NONE,
SCANOUT_SURFACE,