exo: advertise supported formats to linux_dmabuf clients

components/exo/wayland/server.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/exo/wayland/server.h"
 
 #include <alpha-compositing-unstable-v1-server-protocol.h>
 #include <gaming-input-unstable-v1-server-protocol.h>
 #include <gaming-input-unstable-v2-server-protocol.h>
 #include <grp.h>
@@ skipping 65 matching lines @@
 #include "ui/gfx/buffer_format_util.h"
 #include "ui/gfx/buffer_types.h"
 #include "ui/views/widget/widget.h"
 #include "ui/views/widget/widget_observer.h"
 #include "ui/wm/core/coordinate_conversion.h"
 
 #if defined(USE_OZONE)
 #include <drm_fourcc.h>
 #include <linux-dmabuf-unstable-v1-server-protocol.h>
 #include <wayland-drm-server-protocol.h>
+
+#include "gpu/command_buffer/client/gpu_memory_buffer_manager.h"
+#include "ui/aura/env.h"
+#include "ui/ozone/platform/drm/common/drm_util.h"
 #endif
 
 #if BUILDFLAG(USE_XKBCOMMON)
 #include <xkbcommon/xkbcommon.h>
 #include "ui/events/keycodes/scoped_xkb.h"  // nogncheck
 #endif
 
 DECLARE_UI_CLASS_PROPERTY_TYPE(wl_resource*);
 
 namespace exo {
@@ skipping 659 matching lines @@
 void bind_linux_dmabuf(wl_client* client,
                        void* data,
                        uint32_t version,
                        uint32_t id) {
   wl_resource* resource =
       wl_resource_create(client, &zwp_linux_dmabuf_v1_interface, 1, id);
 
   wl_resource_set_implementation(resource, &linux_dmabuf_implementation, data,
                                  nullptr);
 
+#if defined(USE_OZONE)
+  gfx::GpuMemoryBufferAttribVector attrs = aura::Env::GetInstance()
+                                               ->context_factory()
+                                               ->GetGpuMemoryBufferManager()
+                                               ->GetGpuMemoryBufferAttribs();
+
+  for (const auto attrib : attrs)
+    zwp_linux_dmabuf_v1_send_format(
+        resource, ui::GetFourCCFormatFromBufferFormat(attrib.format));
+#else
   for (const auto& supported_format : dmabuf_supported_formats)
     zwp_linux_dmabuf_v1_send_format(resource, supported_format.dmabuf_format);
+#endif
 }
 
 #endif
 
 ////////////////////////////////////////////////////////////////////////////////
 // wl_subsurface_interface:
 
 void subsurface_destroy(wl_client* client, wl_resource* resource) {
   wl_resource_destroy(resource);
 }
@@ skipping 3149 matching lines @@
   DCHECK(event_loop);
   wl_event_loop_dispatch(event_loop, timeout.InMilliseconds());
 }
 
 void Server::Flush() {
   wl_display_flush_clients(wl_display_.get());
 }
 
 }  // namespace wayland
 }  // namespace exo