ui/gl/gl_image_dxgi_swap_chain.h

// Copyright 2019 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.

#ifndef UI_GL_GL_IMAGE_DXGI_SWAP_CHAIN_H_
#define UI_GL_GL_IMAGE_DXGI_SWAP_CHAIN_H_

#include <windows.h>
#include <d3d11.h>
#include <dxgi1_2.h>
#include <wrl/client.h>

#include "ui/gfx/buffer_types.h"
#include "ui/gl/gl_bindings.h"
#include "ui/gl/gl_export.h"
#include "ui/gl/gl_image.h"

namespace gl {

class GL_EXPORT GLImageDXGISwapChain : public gl::GLImage {
 public:
  GLImageDXGISwapChain(const gfx::Size& size,
                       gfx::BufferFormat buffer_format,
                       Microsoft::WRL::ComPtr<ID3D11Texture2D> texture,
                       Microsoft::WRL::ComPtr<IDXGISwapChain1> swap_chain);

  // GLImage implementation
  BindOrCopy ShouldBindOrCopy() override;
  // Destroys surface(if present), and binds image to new pixel buffer surface.
  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;
  void Flush() override;
  unsigned GetInternalFormat() override;
  gfx::Size GetSize() override;
  Type GetType() const override;
  void OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd,
                    uint64_t process_tracing_id,
                    const std::string& dump_name) override;
  bool ScheduleOverlayPlane(gfx::AcceleratedWidget widget,
                            int z_order,
                            gfx::OverlayTransform transform,
                            const gfx::Rect& bounds_rect,
                            const gfx::RectF& crop_rect,
                            bool enable_blend,
                            std::unique_ptr<gfx::GpuFence> gpu_fence) override;

  Microsoft::WRL::ComPtr<ID3D11Texture2D> texture() { return texture_; }

 protected:
  ~GLImageDXGISwapChain() override;

 private:
  void DestroySurface();

  const gfx::Size size_;
  const gfx::BufferFormat buffer_format_;
  EGLSurface surface_ = nullptr;
  Microsoft::WRL::ComPtr<ID3D11Texture2D> texture_;
  // Required by Direct composition surface to pass swap chain handle to OS.
  Microsoft::WRL::ComPtr<IDXGISwapChain1> swap_chain_;
  const EGLDisplay display_;
  const EGLConfig config_;
  DISALLOW_COPY_AND_ASSIGN(GLImageDXGISwapChain);
};

}  // namespace gl

#endif  // UI_GL_GL_IMAGE_DXGI_SWAP_CHAIN_H_