VulkanBuffer.h

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#pragma once
 
#include "Karma/Renderer/Buffer.h"
#include "vulkan/vulkan.h"
 
namespace Karma
{
    class FVulkanDevice;

    class KARMA_API VulkanVertexBuffer : public VertexBuffer
    {
    public:
        VulkanVertexBuffer(float* vertices, uint32_t size);

        virtual ~VulkanVertexBuffer();

        virtual void Bind() const override;

        virtual void UnBind() const override;

        virtual const BufferLayout& GetLayout() const override
        {
            return m_Layout;
        }

        virtual void SetLayout(const BufferLayout& layout) override
        {
            m_Layout = layout;
        }

        void CreateBuffer(VkDeviceSize size, VkBufferUsageFlags usage, VkMemoryPropertyFlags properties,
            VkBuffer& buffer, VkDeviceMemory& bufferMemory);

        void CopyBuffer(VkBuffer srcBuffer, VkBuffer dstBuffer, VkDeviceSize size);

        inline VkBuffer GetVertexBuffer() const { return m_VertexBuffer; }

        inline VkDeviceMemory GetVertexBufferMemory() const { return m_VertexBufferMemory; }

        inline size_t GetBufferSize() { return m_BufferSize; }
 
    private:
        VkDevice m_Device;
        BufferLayout m_Layout;
 
        VkBuffer m_VertexBuffer;
        VkDeviceMemory m_VertexBufferMemory;
 
        size_t m_BufferSize;
    };

    class KARMA_API VulkanIndexBuffer : public IndexBuffer
    {
    public:
        VulkanIndexBuffer(uint32_t* indices, uint32_t count);

        virtual ~VulkanIndexBuffer();

        virtual void Bind() const override;

        virtual void UnBind() const override;

        void CreateBuffer(VkDeviceSize size, VkBufferUsageFlags usage, VkMemoryPropertyFlags properties,
            VkBuffer& buffer, VkDeviceMemory& bufferMemory);

        void CopyBuffer(VkBuffer srcBuffer, VkBuffer dstBuffer, VkDeviceSize size);

        virtual uint32_t GetCount() const override { return m_Count; }

        inline VkBuffer GetIndexBuffer() const { return m_IndexBuffer; }

        inline VkDeviceMemory GetIndexBufferMemory() const { return m_IndexBufferMemory; }

        inline size_t GetBufferSize() { return m_BufferSize; }
 
    private:
        VkDevice m_Device;
        uint32_t m_Count;
 
        VkBuffer m_IndexBuffer;
        VkDeviceMemory m_IndexBufferMemory;
 
        size_t m_BufferSize;
    };

    struct KARMA_API VulkanUniformBuffer : public UniformBufferObject
    {
    public:
        VulkanUniformBuffer(std::vector<ShaderDataType> dataTypes, uint32_t bindingPointIndex);

        virtual ~VulkanUniformBuffer();

        void CreateBuffer(VkDeviceSize size, VkBufferUsageFlags usage, VkMemoryPropertyFlags properties,
            VkBuffer& buffer, VkDeviceMemory& bufferMemory);

        const std::vector<VkBuffer>& GetUniformBuffers() const { return m_UniformBuffers; }

        void ClearBuffer();

        void BufferCreation();
 
        virtual void UpdateCameraUniform() override;

        void UploadUniformBuffer(size_t frameIndex) override;
 
    private:
        VkDevice m_Device;
        std::vector<VkBuffer> m_UniformBuffers;
        std::vector<VkDeviceMemory> m_UniformBuffersMemory;
    };

    class KARMA_API VulkanImageBuffer : public ImageBuffer
    {
    public:
        VulkanImageBuffer(const char* filename);

        VulkanImageBuffer(FVulkanDevice* InDevice, const char* filename);

        virtual ~VulkanImageBuffer();

        void CreateBuffer(VkDeviceSize size, VkBufferUsageFlags usage, VkMemoryPropertyFlags properties,
            VkBuffer& buffer, VkDeviceMemory& bufferMemory);
 
        const inline VkBuffer& GetBuffer() const { return m_StagingBuffer; }
 
        // Getters
        int GetTextureWidth() const { return texWidth; }

        int GetTextureHeight() const { return texHeight; }

        int GetTextureChannels() const { return texChannels; }
 
    private:
        VkDevice m_Device;
        VkPhysicalDevice m_PhysicalDevice;
        VkBuffer m_StagingBuffer;
        VkDeviceMemory m_StagingBufferMemory;
 
        // Image props (properties)
        int texWidth;
        int texHeight;
        int texChannels;
    };
}