shell/gpu/gpu_surface_vulkan.h

// Copyright 2013 The Flutter 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 SHELL_GPU_GPU_SURFACE_VULKAN_H_
#define SHELL_GPU_GPU_SURFACE_VULKAN_H_

#include <memory>

#include "flutter/flow/surface.h"
#include "flutter/fml/macros.h"
#include "flutter/fml/memory/weak_ptr.h"
#include "flutter/shell/gpu/gpu_surface_vulkan_delegate.h"
#include "flutter/vulkan/vulkan_native_surface.h"
#include "flutter/vulkan/vulkan_window.h"
#include "include/core/SkRefCnt.h"

namespace flutter {

class GPUSurfaceVulkan : public Surface {
 public:
  //------------------------------------------------------------------------------
  /// @brief      Create a GPUSurfaceVulkan which implicitly creates its own
  ///             GrDirectContext for Skia.
  ///
  GPUSurfaceVulkan(GPUSurfaceVulkanDelegate* delegate,
                   std::unique_ptr<vulkan::VulkanNativeSurface> native_surface,
                   bool render_to_surface);

  //------------------------------------------------------------------------------
  /// @brief      Create a GPUSurfaceVulkan while letting it reuse an existing
  ///             GrDirectContext.
  ///
  GPUSurfaceVulkan(const sk_sp<GrDirectContext>& context,
                   GPUSurfaceVulkanDelegate* delegate,
                   std::unique_ptr<vulkan::VulkanNativeSurface> native_surface,
                   bool render_to_surface);

  ~GPUSurfaceVulkan() override;

  // |Surface|
  bool IsValid() override;

  // |Surface|
  std::unique_ptr<SurfaceFrame> AcquireFrame(const SkISize& size) override;

  // |Surface|
  SkMatrix GetRootTransformation() const override;

  // |Surface|
  GrDirectContext* GetContext() override;

 private:
  vulkan::VulkanWindow window_;
  const bool render_to_surface_;

  fml::WeakPtrFactory<GPUSurfaceVulkan> weak_factory_;

  FML_DISALLOW_COPY_AND_ASSIGN(GPUSurfaceVulkan);
};

}  // namespace flutter

#endif  // SHELL_GPU_GPU_SURFACE_VULKAN_H_