Start plumbing drm atomic swap.

ui/ozone/platform/dri/hardware_display_plane.h

+// Copyright 2014 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.
+
+#ifndef UI_OZONE_PLATFORM_DRI_HARDWARE_DISPLAY_PLANE_H_
+#define UI_OZONE_PLATFORM_DRI_HARDWARE_DISPLAY_PLANE_H_
+
+#include <stddef.h>
+#include <stdint.h>
+#include <xf86drmMode.h>
+
+#include "base/basictypes.h"
+#include "ui/ozone/platform/dri/scoped_drm_types.h"
+
+namespace gfx {
+class Rect;
+}
+
+namespace ui {
+
+class DriWrapper;
+
+class HardwareDisplayPlane {
+ public:
+  HardwareDisplayPlane(DriWrapper* drm,
+                       drmModePropertySetPtr atomic_property_set,
+                       drmModePlanePtr plane);

[dnicoara, 2014/07/11 20:28:33]

nit: have it take a ScopedDrmPlanePtr instead. That'll make ownership transfer
very clear.

+
+  ~HardwareDisplayPlane();
+
+  bool Initialize();
+
+  bool SetPlaneData(uint32_t crtc_id,
+                    uint32_t framebuffer,
+                    const gfx::Rect& crtc_rect,
+                    const gfx::Rect& src_rect);
+
+ private:
+  struct Property {
+    Property();
+    bool Initialize(DriWrapper* drm,
+                    const char* name,
+                    const ScopedDrmObjectPropertyPtr& plane_properties);
+    uint32_t id_;
+  };
+  // Object containing the connection to the graphics device and wraps the API
+  // calls to control it.
+  DriWrapper* drm_;
+
+  // Not owned.
+  drmModePropertySetPtr property_set_;
+
+  ScopedDrmPlanePtr plane_;
+  uint32_t plane_id_;
+
+  Property crtc_prop_;
+  Property fb_prop_;
+  Property crtc_x_prop_;
+  Property crtc_y_prop_;
+  Property crtc_w_prop_;
+  Property crtc_h_prop_;
+  Property src_x_prop_;
+  Property src_y_prop_;
+  Property src_w_prop_;
+  Property src_h_prop_;
+
+  DISALLOW_COPY_AND_ASSIGN(HardwareDisplayPlane);
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PLATFORM_DRI_HARDWARE_DISPLAY_PLANE_H_