UniformBuffer.h

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// Copyright © 2008-2023 Pioneer Developers. See AUTHORS.txt for details
// Licensed under the terms of the GPL v3. See licenses/GPL-3.txt
 
#pragma once
 
#include "graphics/BufferCommon.h"
#include "graphics/Types.h"
 
namespace Graphics {
 
    class UniformBuffer : public Mappable {
    public:
        UniformBuffer(uint32_t size, BufferUsage usage) :
            Mappable(size),
            m_usage(usage)
        {}
        virtual ~UniformBuffer(){};
 
        template <typename T>
        ScopedMapping<T> Map(BufferMapMode mode)
        {
            return ScopedMapping<T>(reinterpret_cast<T *>(MapInternal(mode)), this);
        }
 
        virtual void Unmap() = 0;
 
        // copies the contents of the passed object into the buffer
        template <typename T>
        void BufferData(const T &obj)
        {
            return BufferData(sizeof(T), (void *)&obj);
        }
 
        // change the buffer data without mapping
        virtual void BufferData(const size_t, void *) = 0;
 
        BufferBinding<UniformBuffer> GetBufferBinding() { return { this, 0, m_size }; }
 
    protected:
        virtual void *MapInternal(BufferMapMode mode) = 0;
        BufferUsage m_usage;
    };
 
} // namespace Graphics