ShaderStorageBuffer.hpp

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#ifndef GALAXY_GRAPHICS_GL_SHADERSTORAGEBUFFER_HPP_
#define GALAXY_GRAPHICS_GL_SHADERSTORAGEBUFFER_HPP_
 
#include <glad/glad.h>
 
namespace galaxy
{
    class ShaderStorageBuffer final
    {
    public:
        ShaderStorageBuffer(const int index);
 
        ShaderStorageBuffer(ShaderStorageBuffer&&) noexcept;
 
        ShaderStorageBuffer& operator=(ShaderStorageBuffer&&) noexcept;
 
        ~ShaderStorageBuffer();
 
        template<typename Object>
        void buffer(const unsigned int count, Object* data);
 
        template<typename Object>
        void sub_buffer(const unsigned int offset, const unsigned int count, Object* data);
 
        void bind() const;
 
        void unbind() const;
 
        void clear() const;
 
        void destroy();
 
        [[nodiscard]]
        unsigned int id() const noexcept;
 
    private:
        ShaderStorageBuffer() = delete;
 
        ShaderStorageBuffer(const ShaderStorageBuffer&) = delete;
 
        ShaderStorageBuffer& operator=(const ShaderStorageBuffer&) = delete;
 
    private:
        unsigned int m_id;
 
        int m_index;
    };
 
    template<typename Object>
    inline void ShaderStorageBuffer::buffer(const unsigned int count, Object* data)
    {
        clear();
 
        constexpr auto size = sizeof(Object);
        glNamedBufferData(m_id, count * size, (void*)data, GL_DYNAMIC_DRAW);
    }
 
    template<typename Object>
    inline void ShaderStorageBuffer::sub_buffer(const unsigned int offset, const unsigned int count, Object* data)
    {
        constexpr auto size = sizeof(Object);
        glNamedBufferSubData(m_id, offset, count * size, (void*)data);
    }
} // namespace galaxy
 
#endif