src/ui/ozone/platform/dri/dri_surface_factory.h

   1 // Copyright 2014 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_PLATFORM_DRI_DRI_SURFACE_FACTORY_H_
   6 #define UI_OZONE_PLATFORM_DRI_DRI_SURFACE_FACTORY_H_
   7
   8 #include <map>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #include "third_party/skia/include/core/SkBitmap.h"
  12 #include "ui/ozone/platform/dri/hardware_cursor_delegate.h"
  13 #include "ui/ozone/public/surface_factory_ozone.h"
  14
  15 namespace ui {
  16
  17 class DriBuffer;
  18 class DriWrapper;
  19 class ScreenManager;
  20 class SurfaceOzoneCanvas;
  21
  22 // SurfaceFactoryOzone implementation on top of DRM/KMS using dumb buffers.
  23 // This implementation is used in conjunction with the software rendering
  24 // path.
  25 class DriSurfaceFactory : public ui::SurfaceFactoryOzone,
  26                           public HardwareCursorDelegate {
  27  public:
  28   static const gfx::AcceleratedWidget kDefaultWidgetHandle;
  29
  30   DriSurfaceFactory(DriWrapper* drm, ScreenManager* screen_manager);
  31   virtual ~DriSurfaceFactory();
  32
  33   // Describes the state of the hardware after initialization.
  34   enum HardwareState {
  35     UNINITIALIZED,
  36     INITIALIZED,
  37     FAILED,
  38   };
  39
  40   // Open the display device.
  41   virtual HardwareState InitializeHardware();
  42
  43   // Close the display device.
  44   virtual void ShutdownHardware();
  45
  46   virtual scoped_ptr<ui::SurfaceOzoneCanvas> CreateCanvasForWidget(
  47       gfx::AcceleratedWidget w) OVERRIDE;
  48   virtual bool LoadEGLGLES2Bindings(
  49       AddGLLibraryCallback add_gl_library,
  50       SetGLGetProcAddressProcCallback set_gl_get_proc_address) OVERRIDE;
  51
  52   // Create a new window/surface/widget identifier.
  53   gfx::AcceleratedWidget GetAcceleratedWidget();
  54
  55   // Determine dimensions of a widget.
  56   gfx::Size GetWidgetSize(gfx::AcceleratedWidget w);
  57
  58   // HardwareCursorDelegate:
  59   virtual void SetHardwareCursor(gfx::AcceleratedWidget window,
  60                                  const SkBitmap& image,
  61                                  const gfx::Point& location) OVERRIDE;
  62   virtual void MoveHardwareCursor(gfx::AcceleratedWidget window,
  63                                   const gfx::Point& location) OVERRIDE;
  64
  65  protected:
  66   // Draw the last set cursor & update the cursor plane.
  67   void ResetCursor(gfx::AcceleratedWidget w);
  68
  69   DriWrapper* drm_;  // Not owned.
  70   ScreenManager* screen_manager_;  // Not owned.
  71   HardwareState state_;
  72
  73   // Active outputs.
  74   int allocated_widgets_;
  75
  76   scoped_refptr<DriBuffer> cursor_buffers_[2];
  77   int cursor_frontbuffer_;
  78
  79   SkBitmap cursor_bitmap_;
  80   gfx::Point cursor_location_;
  81
  82   DISALLOW_COPY_AND_ASSIGN(DriSurfaceFactory);
  83 };
  84
  85 }  // namespace ui
  86
  87 #endif  // UI_OZONE_PLATFORM_DRI_DRI_SURFACE_FACTORY_H_