Allow presenting DXGI share handles as overlays.

ui/gl/gl_image_dxgi.h

 // Copyright 2017 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.
 
 #include <d3d11.h>
 
 #include "base/win/scoped_comptr.h"
+#include "base/win/scoped_handle.h"
 #include "ui/gl/gl_export.h"
 #include "ui/gl/gl_image.h"
 
 typedef void* EGLStreamKHR;
 
 namespace gl {
 
-class GL_EXPORT GLImageDXGI : public GLImage {
+class GL_EXPORT GLImageDXGIBase : public GLImage {
  public:
-  GLImageDXGI(const gfx::Size& size, EGLStreamKHR stream);
+  GLImageDXGIBase(const gfx::Size& size);
 
   // Safe downcast. Returns nullptr on failure.
-  static GLImageDXGI* FromGLImage(GLImage* image);
+  static GLImageDXGIBase* FromGLImage(GLImage* image);
 
   // GLImage implementation.
   gfx::Size GetSize() override;
   unsigned GetInternalFormat() override;
   bool BindTexImage(unsigned target) override;
   void ReleaseTexImage(unsigned target) override;
   bool CopyTexImage(unsigned target) override;
   bool CopyTexSubImage(unsigned target,
                        const gfx::Point& offset,
                        const gfx::Rect& rect) override;
   bool ScheduleOverlayPlane(gfx::AcceleratedWidget widget,
                             int z_order,
                             gfx::OverlayTransform transform,
                             const gfx::Rect& bounds_rect,
                             const gfx::RectF& crop_rect) override;
   void Flush() override;
   void OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd,
                     uint64_t process_tracing_id,
                     const std::string& dump_name) override;
   Type GetType() const override;
 
+  base::win::ScopedComPtr<ID3D11Texture2D> texture() { return texture_; }
+  size_t level() const { return level_; }
+  base::win::ScopedComPtr<IDXGIKeyedMutex> keyed_mutex() {
+    return keyed_mutex_;
+  }
+
+ protected:
+  ~GLImageDXGIBase() override;
+
+  gfx::Size size_;
+
+  base::win::ScopedComPtr<ID3D11Texture2D> texture_;
+  base::win::ScopedComPtr<IDXGIKeyedMutex> keyed_mutex_;
+  size_t level_ = 0;
+};
+
+class GL_EXPORT GLImageDXGI : public GLImageDXGIBase {
+ public:
+  GLImageDXGI(const gfx::Size& size, EGLStreamKHR stream);
+
+  // GLImage implementation.
+  bool BindTexImage(unsigned target) override;
+
   void SetTexture(const base::win::ScopedComPtr<ID3D11Texture2D>& texture,
                   size_t level);
 
-  base::win::ScopedComPtr<ID3D11Texture2D> texture() { return texture_; }
-  size_t level() const { return level_; }
-
  protected:
   ~GLImageDXGI() override;
 
-  gfx::Size size_;
-
   EGLStreamKHR stream_;
-
-  base::win::ScopedComPtr<ID3D11Texture2D> texture_;
-  size_t level_ = 0;
 };
 
 // This copies to a new texture on bind.
 class GL_EXPORT CopyingGLImageDXGI : public GLImageDXGI {
  public:
   CopyingGLImageDXGI(const base::win::ScopedComPtr<ID3D11Device>& d3d11_device,
                      const gfx::Size& size,
                      EGLStreamKHR stream);
 
   bool Initialize();
@@ skipping 12 matching lines @@
   bool copied_ = false;
 
   base::win::ScopedComPtr<ID3D11VideoDevice> video_device_;
   base::win::ScopedComPtr<ID3D11VideoContext> video_context_;
   base::win::ScopedComPtr<ID3D11VideoProcessor> d3d11_processor_;
   base::win::ScopedComPtr<ID3D11VideoProcessorEnumerator> enumerator_;
   base::win::ScopedComPtr<ID3D11Device> d3d11_device_;
   base::win::ScopedComPtr<ID3D11Texture2D> decoder_copy_texture_;
   base::win::ScopedComPtr<ID3D11VideoProcessorOutputView> output_view_;
 };
+
+class GL_EXPORT GLImageDXGIHandle : public GLImageDXGIBase {
+ public:
+  GLImageDXGIHandle(const gfx::Size& size,
+                    base::win::ScopedHandle handle,
+                    uint32_t level);
+
+  bool Initialize();
+
+ protected:
+  ~GLImageDXGIHandle() override;
+
+  base::win::ScopedHandle handle_;
+};
 }