ozone: Allocate scanout buffers according to KMS modifiers.

ui/ozone/platform/drm/gpu/gbm_buffer.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_DRM_GPU_GBM_BUFFER_H_
 #define UI_OZONE_PLATFORM_DRM_GPU_GBM_BUFFER_H_
 
 #include <vector>
 
 #include "base/files/scoped_file.h"
 #include "base/macros.h"
 #include "ui/gfx/buffer_types.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/ozone/platform/drm/gpu/gbm_buffer_base.h"
 #include "ui/ozone/public/native_pixmap.h"
 
 struct gbm_bo;
 
 namespace ui {
 
 class GbmDevice;
 class GbmSurfaceFactory;
 
 class GbmBuffer : public GbmBufferBase {
  public:
   static scoped_refptr<GbmBuffer> CreateBuffer(
       const scoped_refptr<GbmDevice>& gbm,
       uint32_t format,
       const gfx::Size& size,
-      uint32_t usage);
+      uint32_t flags);
+  static scoped_refptr<GbmBuffer> CreateBufferWithModifiers(
+      const scoped_refptr<GbmDevice>& gbm,
+      uint32_t format,
+      const gfx::Size& size,
+      uint32_t flags,
+      const std::vector<uint64_t>& modifiers);
   static scoped_refptr<GbmBuffer> CreateBufferFromFds(
       const scoped_refptr<GbmDevice>& gbm,
       uint32_t format,
       const gfx::Size& size,
       std::vector<base::ScopedFD>&& fds,
       const std::vector<gfx::NativePixmapPlane>& planes);
   uint32_t GetFormat() const { return format_; }
   uint32_t GetFlags() const { return flags_; }
   bool AreFdsValid() const;
   size_t GetFdCount() const;
   int GetFd(size_t plane) const;
   int GetStride(size_t plane) const;
   int GetOffset(size_t plane) const;
   size_t GetSize(size_t plane) const;
   uint64_t GetFormatModifier(size_t plane) const;
   gfx::Size GetSize() const override;
 
  private:
   GbmBuffer(const scoped_refptr<GbmDevice>& gbm,
             gbm_bo* bo,
             uint32_t format,
             uint32_t flags,
+            uint64_t modifier,
+            uint32_t addfb_flags,
             std::vector<base::ScopedFD>&& fds,
             const gfx::Size& size,
             const std::vector<gfx::NativePixmapPlane>&& planes);
   ~GbmBuffer() override;
 
+  static scoped_refptr<GbmBuffer> CreateBufferForBO(
+      const scoped_refptr<GbmDevice>& gbm,
+      gbm_bo* bo,
+      uint32_t format,
+      const gfx::Size& size,
+      uint32_t flags,
+      uint64_t modifiers,
+      uint32_t addfb_flags);
+
   uint32_t format_;
   uint32_t flags_;
   std::vector<base::ScopedFD> fds_;
   gfx::Size size_;
 
   std::vector<gfx::NativePixmapPlane> planes_;
 
   DISALLOW_COPY_AND_ASSIGN(GbmBuffer);
 };
 
@@ skipping 36 matching lines @@
   // this Pixmap. This holds the processed buffer.
   scoped_refptr<GbmPixmap> processed_pixmap_;
   ProcessingCallback processing_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(GbmPixmap);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_DRM_GPU_GBM_BUFFER_H_