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ui/dmabuf: extend QemuDmaBuf to support multi-plane

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mesa/radeonsi is going to support explicit modifier which
may export a multi-plane texture. For example, texture with
DCC enabled (a compressed format) has two planes, one with
compressed data, the other with meta data for compression.

v2:
  * change API qemu_dmabuf_get_fd/offset/stride to
    qemu_dmabuf_get_fds/offsets/strides.
  * change API qemu_dmabuf_dup_fd to qemu_dmabuf_dup_fds.
  * add an extra arg to these API for the length of the
    array.

Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
[ Fix style ]
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-ID: <20250327025848.46962-2-yuq825@gmail.com>
This commit is contained in:
Qiang Yu 2025-03-27 10:58:43 +08:00 • committed by Marc-André Lureau
parent 5134cf9b5d
commit bb5101aadc
8 changed files with 90 additions and 49 deletions
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4
ui/spice-display.c
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@ -1075,10 +1075,10 @@ static void qemu_spice_gl_update(DisplayChangeListener *dcl,
stride, fourcc, false);
}
} else {
stride = qemu_dmabuf_get_stride(dmabuf);
stride = qemu_dmabuf_get_strides(dmabuf, NULL)[0];
fourcc = qemu_dmabuf_get_fourcc(dmabuf);
y_0_top = qemu_dmabuf_get_y0_top(dmabuf);
fd = qemu_dmabuf_dup_fd(dmabuf);
qemu_dmabuf_dup_fds(dmabuf, &fd, 1);
trace_qemu_spice_gl_forward_dmabuf(ssd->qxl.id, width, height);
/* note: spice server will close the fd, so hand over a dup */