pipeline_vulkan.hpp

// Copyright Take Vos 2019-2022.
// 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 "draw_context.hpp"
#include <vulkan/vulkan.hpp>
#include <string>
#include <vector>
 
namespace hi::inline v1 {
class gfx_device_vulkan;
 
class pipeline_vulkan : public pipeline {
public:
    vk::Pipeline intrinsic;
 
    pipeline_vulkan(gfx_surface const &surface);
    ~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;
 
    gfx_device_vulkan &vulkan_device() const noexcept;
 
    virtual void draw_in_command_buffer(vk::CommandBuffer commandBuffer, draw_context const &context);
 
    void build_for_new_device();
    void teardown_for_device_lost();
    void build_for_new_swapchain(vk::RenderPass renderPass, uint32_t renderSubpass, vk::Extent2D extent);
    void teardown_for_swapchain_lost();
 
protected:
    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 build_vertex_buffers(){};
    virtual void teardown_vertex_buffers(){};
    virtual void build_descriptor_sets();
    virtual void teardown_descriptor_sets();
    virtual void build_pipeline(vk::RenderPass renderPass, uint32_t renderSubpass, vk::Extent2D extent);
    virtual void teardown_pipeline();
};
 
} // namespace hi::inline v1