cef/tests/cefclient/browser/osr_render_handler_win_d3d11.h

// Copyright 2018 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that
// can be found in the LICENSE file.

#ifndef CEF_TESTS_CEFCLIENT_BROWSER_OSR_RENDER_HANDLER_WIN_D3D11_H_
#define CEF_TESTS_CEFCLIENT_BROWSER_OSR_RENDER_HANDLER_WIN_D3D11_H_
#pragma once

#include "tests/cefclient/browser/osr_d3d11_win.h"
#include "tests/cefclient/browser/osr_render_handler_win.h"
#include "tests/cefclient/browser/osr_renderer_settings.h"

namespace client {

class BrowserLayer : public d3d11::Layer {
 public:
  explicit BrowserLayer(const std::shared_ptr<d3d11::Device>& device);

  void render(const std::shared_ptr<d3d11::Context>& ctx) override;

  void on_paint(void* share_handle);

  // After calling on_paint() we can query the texture size.
  std::pair<uint32_t, uint32_t> texture_size() const;

 private:
  std::shared_ptr<d3d11::FrameBuffer> frame_buffer_;

  DISALLOW_COPY_AND_ASSIGN(BrowserLayer);
};

class PopupLayer : public BrowserLayer {
 public:
  explicit PopupLayer(const std::shared_ptr<d3d11::Device>& device);

  void set_bounds(const CefRect& bounds);

  bool contains(int x, int y) const { return bounds_.Contains(x, y); }
  int xoffset() const { return original_bounds_.x - bounds_.x; }
  int yoffset() const { return original_bounds_.y - bounds_.y; }

 private:
  CefRect original_bounds_;
  CefRect bounds_;

  DISALLOW_COPY_AND_ASSIGN(PopupLayer);
};

class OsrRenderHandlerWinD3D11 : public OsrRenderHandlerWin {
 public:
  OsrRenderHandlerWinD3D11(const OsrRendererSettings& settings, HWND hwnd);

  // Must be called immediately after object creation.
  // May fail if D3D11 cannot be initialized.
  bool Initialize(CefRefPtr<CefBrowser> browser, int width, int height);

  void SetSpin(float spinX, float spinY) override;
  void IncrementSpin(float spinDX, float spinDY) override;
  bool IsOverPopupWidget(int x, int y) const override;
  int GetPopupXOffset() const override;
  int GetPopupYOffset() const override;
  void OnPopupShow(CefRefPtr<CefBrowser> browser, bool show) override;
  void OnPopupSize(CefRefPtr<CefBrowser> browser, const CefRect& rect) override;
  void OnPaint(CefRefPtr<CefBrowser> browser,
               CefRenderHandler::PaintElementType type,
               const CefRenderHandler::RectList& dirtyRects,
               const void* buffer,
               int width,
               int height) override;
  void OnAcceleratedPaint(CefRefPtr<CefBrowser> browser,
                          CefRenderHandler::PaintElementType type,
                          const CefRenderHandler::RectList& dirtyRects,
                          const CefAcceleratedPaintInfo& info) override;

 private:
  void Render() override;

  uint64_t start_time_ = 0;
  std::shared_ptr<d3d11::Device> device_;
  std::shared_ptr<d3d11::SwapChain> swap_chain_;
  std::shared_ptr<d3d11::Composition> composition_;
  std::shared_ptr<BrowserLayer> browser_layer_;
  std::shared_ptr<PopupLayer> popup_layer_;

  DISALLOW_COPY_AND_ASSIGN(OsrRenderHandlerWinD3D11);
};

}  // namespace client

#endif  // CEF_TESTS_CEFCLIENT_BROWSER_OSR_RENDER_HANDLER_WIN_D3D11_H_