pipeline_vulkan.hpp

// Copyright Take Vos 2019-2020.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt)
 
#pragma once
 
#include "pipeline.hpp"
#include <vulkan/vulkan.hpp>
#include <string>
#include <vector>
 
namespace tt {
class gui_device_vulkan;
 
class pipeline_vulkan : public pipeline {
public:
    vk::Pipeline intrinsic;
 
    pipeline_vulkan(gui_window const &window);
    ~pipeline_vulkan();
 
    pipeline_vulkan(const pipeline_vulkan &) = delete;
    pipeline_vulkan &operator=(const pipeline_vulkan &) = delete;
    pipeline_vulkan(pipeline_vulkan &&) = delete;
    pipeline_vulkan &operator=(pipeline_vulkan &&) = delete;
 
    gui_device_vulkan &vulkan_device() const noexcept;
 
    virtual void drawInCommandBuffer(vk::CommandBuffer commandBuffer);
 
    void buildForNewDevice();
    void teardownForDeviceLost();
    void buildForNewSurface();
    void teardownForSurfaceLost();
    void buildForNewSwapchain(vk::RenderPass renderPass, uint32_t renderSubpass, vk::Extent2D extent);
    void teardownForSwapchainLost();
    void teardownForWindowLost();
 
protected:
    bool buffersInitialized = false;
    vk::DescriptorSet descriptorSet;
    ssize_t descriptorSetVersion = 0;
    vk::Extent2D extent;
    vk::DescriptorSetLayout descriptorSetLayout;
    vk::PipelineLayout pipelineLayout;
    vk::DescriptorPool descriptorPool;
 
    virtual std::vector<vk::PipelineShaderStageCreateInfo> createShaderStages() const = 0;
    virtual std::vector<vk::DescriptorSetLayoutBinding> createDescriptorSetLayoutBindings() const = 0;
    virtual std::vector<vk::WriteDescriptorSet> createWriteDescriptorSet() const = 0;
    virtual ssize_t getDescriptorSetVersion() const = 0;
    virtual std::vector<vk::PushConstantRange> createPushConstantRanges() const { return {}; }
    virtual vk::VertexInputBindingDescription createVertexInputBindingDescription() const { return{}; }
    virtual std::vector<vk::VertexInputAttributeDescription> createVertexInputAttributeDescriptions() const { return {}; }
 
    virtual vk::PipelineDepthStencilStateCreateInfo getPipelineDepthStencilStateCreateInfo() const;
    virtual std::vector<vk::PipelineColorBlendAttachmentState> getPipelineColorBlendAttachmentStates() const;
 
    virtual void buildvertexBuffers() {};
    virtual void teardownvertexBuffers() {};
    virtual void buildDescriptorSets();
    virtual void teardownDescriptorSets();
    virtual void buildPipeline(vk::RenderPass renderPass, uint32_t renderSubpass, vk::Extent2D extent);
    virtual void teardownPipeline();
};
 
}