Add GLImageDXGI

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 "third_party/khronos/EGL/egl.h"
+#include "third_party/khronos/EGL/eglext.h"
+#include "ui/gl/gl_export.h"
+#include "ui/gl/gl_image.h"
+
+namespace gl {
+
+class GL_EXPORT GLImageDXGI : public GLImage {
+ public:
+  GLImageDXGI(const gfx::Size& size, EGLStreamKHR stream);
+
+  // Safe downcast. Returns nullptr on failure.
+  static GLImageDXGI* 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;
+
+  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;
+
+ private:
+  gfx::Size size_;
+
+  EGLStreamKHR stream_;
+
+  base::win::ScopedComPtr<ID3D11Texture2D> texture_;
+  size_t level_ = 0;
+};
+}