ozone: Import multi-planar GBMs.

ui/ozone/platform/drm/gpu/gbm_buffer.cc

Index: ui/ozone/platform/drm/gpu/gbm_buffer.cc
diff --git a/ui/ozone/platform/drm/gpu/gbm_buffer.cc b/ui/ozone/platform/drm/gpu/gbm_buffer.cc
index 5d4643411a6e5f0f9de70d737a2c51c0dc209e44..dff2d96b234c136d4bca99760c71942f79a5c67c 100644
--- a/ui/ozone/platform/drm/gpu/gbm_buffer.cc
+++ b/ui/ozone/platform/drm/gpu/gbm_buffer.cc
@@ -184,23 +184,27 @@ scoped_refptr<GbmBuffer> GbmBuffer::CreateBufferFromFds(
   DCHECK_EQ(planes[0].offset, 0);
 
   // Try to use scanout if supported.
-  bool try_scanout =
-      gbm_device_is_format_supported(
-          gbm->device(), format, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING) &&
-      (planes.size() == 1);
+  bool try_scanout = gbm_device_is_format_supported(
+      gbm->device(), format, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
 
   gbm_bo* bo = nullptr;
   if (try_scanout) {
-    struct gbm_import_fd_data fd_data;
-    fd_data.fd = fds[0].get();
+    struct gbm_import_fd_planar_data fd_data;
     fd_data.width = size.width();
     fd_data.height = size.height();
-    fd_data.stride = planes[0].stride;
     fd_data.format = format;
 
+    DCHECK_LE(planes.size(), 3u);
+    for (size_t i = 0; i < planes.size(); ++i) {
+      fd_data.fds[i] = fds[i < fds.size() ? i : 0].get();
+      fd_data.strides[i] = planes[i].stride;
+      fd_data.offsets[i] = planes[i].offset;
+      fd_data.format_modifiers[i] = planes[i].modifier;
+    }
+
     // The fd passed to gbm_bo_import is not ref-counted and need to be
     // kept open for the lifetime of the buffer.
-    bo = gbm_bo_import(gbm->device(), GBM_BO_IMPORT_FD, &fd_data,
+    bo = gbm_bo_import(gbm->device(), GBM_BO_IMPORT_FD_PLANAR, &fd_data,
                        GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
     if (!bo) {
       LOG(ERROR) << "nullptr returned from gbm_bo_import";