C_renderWindow.hpp

/*
 * Copyright 2024 Guillaume Guillet
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#ifndef _FGE_GRAPHIC_C_RENDERWINDOW_HPP_INCLUDED
#define _FGE_GRAPHIC_C_RENDERWINDOW_HPP_INCLUDED
 
/*
 * Original from : https://github.com/SFML/SFML
 * Copyright (C) 2007-2022 Laurent Gomila
 *
 * Altered/Modified by Guillaume Guillet
 */
 
#include "FastEngine/fge_extern.hpp"
#include "FastEngine/graphic/C_renderTarget.hpp"
#include "FastEngine/vulkan/C_descriptorSet.hpp"
#include "FastEngine/vulkan/C_descriptorSetLayout.hpp"
#include "FastEngine/vulkan/C_swapChain.hpp"
#include "FastEngine/vulkan/C_textureImage.hpp"
#include "FastEngine/vulkan/C_uniformBuffer.hpp"
#include <array>
#include <string>
 
#define FGE_RENDER_FPS_NOT_LIMITED std::numeric_limits<unsigned int>::max()
 
namespace fge
{
 
namespace vulkan
{
 
class Context;
class SurfaceWindow;
 
} // namespace vulkan
 
class FGE_API RenderWindow : public fge::RenderTarget
{
public:
    explicit RenderWindow(fge::vulkan::Context const& context, fge::vulkan::SurfaceWindow& surfaceWindow);
    ~RenderWindow() override;
 
    void destroy() final;
 
    [[nodiscard]] uint32_t prepareNextFrame(VkCommandBufferInheritanceInfo const* inheritanceInfo,
                                            uint64_t timeout_ns) override;
    void beginRenderPass(uint32_t imageIndex) override;
    void endRenderPass() override;
    void display(uint32_t imageIndex) override;
 
    [[nodiscard]] Vector2u getSize() const override;
 
    void setPresentMode(VkPresentModeKHR presentMode);
    [[nodiscard]] VkPresentModeKHR getPresentMode() const;
 
    void setTargetFrameRate(unsigned int frameRate);
    [[nodiscard]] unsigned int getTargetFrameRate() const;
 
    [[nodiscard]] VkExtent2D getExtent2D() const override;
    [[nodiscard]] fge::vulkan::CommandBuffer& getCommandBuffer() const override;
    [[nodiscard]] VkRenderPass getRenderPass() const override;
    [[nodiscard]] fge::vulkan::SurfaceWindow& getSurface() const;
 
    [[nodiscard]] VkCommandBufferInheritanceInfo getInheritanceInfo(uint32_t imageIndex) const;
 
    [[nodiscard]] uint32_t getCurrentFrame() const;
 
    void onResize();
 
private:
    void init();
 
    void recreateSwapChain();
 
    void createRenderPass();
    void createFramebuffers();
    void createSyncObjects();
 
    fge::vulkan::SurfaceWindow* g_surfaceWindow;
 
    fge::vulkan::SwapChain g_swapChain;
 
    VkRenderPass g_renderPass = VK_NULL_HANDLE;
 
    std::vector<VkFramebuffer> g_swapChainFramebuffers;
 
    mutable std::array<fge::vulkan::CommandBuffer, FGE_MAX_FRAMES_IN_FLIGHT> g_commandBuffers;
 
    std::array<VkSemaphore, FGE_MAX_FRAMES_IN_FLIGHT> g_imageAvailableSemaphores;
    std::array<VkSemaphore, FGE_MAX_FRAMES_IN_FLIGHT> g_renderFinishedSemaphores;
    std::array<VkFence, FGE_MAX_FRAMES_IN_FLIGHT> g_inFlightFences;
 
    uint32_t g_currentFrame = 0;
 
    VkPresentModeKHR g_presentMode = VK_PRESENT_MODE_FIFO_KHR;
    std::chrono::steady_clock::time_point g_lastFrameTime;
    unsigned int g_targetFrameRate = FGE_RENDER_FPS_NOT_LIMITED;
 
    bool g_framebufferResized = false;
    bool g_isCreated = false;
};
 
} // namespace fge
 
 
#endif // _FGE_GRAPHIC_C_RENDERWINDOW_HPP_INCLUDED