ui/dmabuf: extend QemuDmaBuf to support multi-plane

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>

1 files changed, 5 insertions, 5 deletions

diff --git a/ui/dbus-listener.c b/ui/dbus-listener.c
index 51244c9240..65373d519c 100644
--- a/ui/dbus-listener.c
+++ b/ui/dbus-listener.c
@@ -299,7 +299,7 @@ static void dbus_scanout_dmabuf(DisplayChangeListener *dcl,
     uint64_t modifier;
     bool y0_top;
 
-    fd = qemu_dmabuf_get_fd(dmabuf);
+    fd = qemu_dmabuf_get_fds(dmabuf, NULL)[0];
     fd_list = g_unix_fd_list_new();
     if (g_unix_fd_list_append(fd_list, fd, &err) != 0) {
         error_report("Failed to setup dmabuf fdlist: %s", err->message);
@@ -310,7 +310,7 @@ static void dbus_scanout_dmabuf(DisplayChangeListener *dcl,
 
     width = qemu_dmabuf_get_width(dmabuf);
     height = qemu_dmabuf_get_height(dmabuf);
-    stride = qemu_dmabuf_get_stride(dmabuf);
+    stride = qemu_dmabuf_get_strides(dmabuf, NULL)[0];
     fourcc = qemu_dmabuf_get_fourcc(dmabuf);
     modifier = qemu_dmabuf_get_modifier(dmabuf);
     y0_top = qemu_dmabuf_get_y0_top(dmabuf);
@@ -505,7 +505,7 @@ static void dbus_scanout_texture(DisplayChangeListener *dcl,
 #ifdef CONFIG_GBM
     g_autoptr(QemuDmaBuf) dmabuf = NULL;
     int fd;
-    uint32_t stride, fourcc;
+    uint32_t offset = 0, stride, fourcc;
     uint64_t modifier;
 
     assert(tex_id);
@@ -515,8 +515,8 @@ static void dbus_scanout_texture(DisplayChangeListener *dcl,
         error_report("%s: failed to get fd for texture", __func__);
         return;
     }
-    dmabuf = qemu_dmabuf_new(w, h, stride, x, y, backing_width,
-                             backing_height, fourcc, modifier, fd,
+    dmabuf = qemu_dmabuf_new(w, h, &offset, &stride, x, y, backing_width,
+                             backing_height, fourcc, modifier, &fd, 1,
                              false, backing_y_0_top);
 
     dbus_scanout_dmabuf(dcl, dmabuf);