text: ﻿/*
   *  MIT License
   *
   *  Copyright (c) 2019-2020 Basile Combet, Philippe Yi
   *
   *  Permission is hereby granted, free of charge, to any person obtaining a copy
   *  of this software and associated documentation files (the "Software"), to deal
   *  in the Software without restriction, including without limitation the rights
   *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   *  copies of the Software, and to permit persons to whom the Software is
   *  furnished to do so, subject to the following conditions:
   *
   *  The above copyright notice and this permission notice shall be included in all
   *  copies or substantial portions of the Software.
   *
   *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   *  FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL THE
   *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   *  SOFTWARE.
   */
  
  #include "Rendering/RenderContext.hpp"
  #include "Rendering/Renderer.hpp"
  
  #include "Windowing/Window.hpp"
  
  #include "Vulkan/Core/VulkanSwapchain.hpp"
  
  USING_RUKEN_NAMESPACE
  
  #pragma region Constructor
  
  RenderContext::RenderContext(Renderer&  in_renderer,
                               Scheduler& in_scheduler,
                               Window&    in_window):
      m_swapchain {std::make_unique<VulkanSwapchain>(in_renderer.GetPhysicalDevice(), in_renderer.GetDevice(), in_window)}
  {
      for (RkUint32 i = 0; i < 2u; ++i)
          m_render_frames.emplace_back(in_renderer, in_scheduler);
  }
  
  #pragma endregion
  
  #pragma region Methods
  
  RkBool RenderContext::BeginFrame() noexcept
  {
      if (m_is_frame_active)
          return false;
  
      m_frame_index = m_frame_index + 1 % m_render_frames.size();
  
      auto& active_frame = m_render_frames[m_frame_index];
  
      if (!active_frame.Reset())
          return false;
  
      m_is_frame_active = true;
  
      return true;
  }
  
  RkVoid RenderContext::EndFrame() noexcept
  {
      if (!m_is_frame_active)
          return;
  
      if (m_swapchain->IsValid())
          m_swapchain->Present(m_render_frames[m_frame_index]);
  
      m_is_frame_active = false;
  }
  
  #pragma endregion