ui/ozone/public/surface_ozone_egl.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_PUBLIC_SURFACE_OZONE_EGL_H_
   6 #define UI_OZONE_PUBLIC_SURFACE_OZONE_EGL_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/callback.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "ui/gfx/overlay_transform.h"
  12 #include "ui/gfx/swap_result.h"
  13 #include "ui/ozone/ozone_base_export.h"
  14
  15 namespace gfx {
  16 class Size;
  17 class VSyncProvider;
  18 }
  19
  20 namespace ui {
  21 class NativePixmap;
  22
  23 typedef base::Callback<void(gfx::SwapResult)> SwapCompletionCallback;
  24
  25 // The platform-specific part of an EGL surface.
  26 //
  27 // This class owns any bits that the ozone implementation needs freed when
  28 // the EGL surface is destroyed.
  29 class OZONE_BASE_EXPORT SurfaceOzoneEGL {
  30  public:
  31   virtual ~SurfaceOzoneEGL() {}
  32
  33   // Returns the EGL native window for rendering onto this surface.
  34   // This can be used to to create a GLSurface.
  35   virtual intptr_t /* EGLNativeWindowType */ GetNativeWindow() = 0;
  36
  37   // Attempts to resize the EGL native window to match the viewport
  38   // size.
  39   virtual bool ResizeNativeWindow(const gfx::Size& viewport_size) = 0;
  40
  41   // Called after we swap buffers. This is usually a no-op but can
  42   // be used to present the new front buffer if the platform requires this.
  43   virtual bool OnSwapBuffers() = 0;
  44
  45   // Called after we swap buffers. This is usually a no-op but can
  46   // be used to present the new front buffer if the platform requires this.
  47   // The callback should be run on the calling thread
  48   // (i.e. same thread SwapBuffersAsync is called).
  49   virtual bool OnSwapBuffersAsync(const SwapCompletionCallback& callback) = 0;
  50
  51   // Returns a gfx::VsyncProvider for this surface. Note that this may be
  52   // called after we have entered the sandbox so if there are operations (e.g.
  53   // opening a file descriptor providing vsync events) that must be done
  54   // outside of the sandbox, they must have been completed in
  55   // InitializeHardware. Returns an empty scoped_ptr on error.
  56   virtual scoped_ptr<gfx::VSyncProvider> CreateVSyncProvider() = 0;
  57
  58   // Returns true if the surface is created on a UDL device.
  59   virtual bool IsUniversalDisplayLinkDevice();
  60 };
  61
  62 }  // namespace ui
  63
  64 #endif  // UI_OZONE_PUBLIC_SURFACE_OZONE_EGL_H_