ui/ozone/public/client_native_pixmap_factory.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_OZONE_PUBLIC_CLIENT_NATIVE_PIXMAP_FACTORY_H_
   6 #define UI_OZONE_PUBLIC_CLIENT_NATIVE_PIXMAP_FACTORY_H_
   7
   8 #include <vector>
   9
  10 #include "base/files/scoped_file.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "ui/gfx/buffer_types.h"
  13 #include "ui/ozone/ozone_export.h"
  14 #include "ui/ozone/public/client_native_pixmap.h"
  15
  16 namespace gfx {
  17 struct NativePixmapHandle;
  18 class Size;
  19 }
  20
  21 namespace ui {
  22
  23 // The Ozone interface allows external implementations to hook into Chromium to
  24 // provide a client pixmap for non-GPU processes.
  25 class OZONE_EXPORT ClientNativePixmapFactory {
  26  public:
  27   static ClientNativePixmapFactory* GetInstance();
  28   static void SetInstance(ClientNativePixmapFactory* instance);
  29
  30   static scoped_ptr<ClientNativePixmapFactory> Create();
  31
  32   virtual ~ClientNativePixmapFactory();
  33
  34   // Initialize with the given client native pixmap |device_fd|.
  35   virtual void Initialize(base::ScopedFD device_fd) = 0;
  36
  37   struct Configuration {
  38     gfx::BufferFormat format;
  39     gfx::BufferUsage usage;
  40   };
  41
  42   // Gets supported format/usage configurations.
  43   virtual std::vector<Configuration> GetSupportedConfigurations() const = 0;
  44
  45   // TODO(dshwang): implement it. crbug.com/475633
  46   // Import the native pixmap from |handle| to be used in non-GPU processes.
  47   // This function takes ownership of any file descriptors in |handle|.
  48   virtual scoped_ptr<ClientNativePixmap> ImportFromHandle(
  49       const gfx::NativePixmapHandle& handle,
  50       const gfx::Size& size,
  51       gfx::BufferUsage usage) = 0;
  52
  53  protected:
  54   ClientNativePixmapFactory();
  55
  56  private:
  57   DISALLOW_COPY_AND_ASSIGN(ClientNativePixmapFactory);
  58 };
  59
  60 }  // namespace ui
  61
  62 #endif  // UI_OZONE_PUBLIC_CLIENT_NATIVE_PIXMAP_FACTORY_H_