Program Listing for File buffer_format.h

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#pragma once

#include <dxgi.h>

#include "common/common.h"

struct VertexBufferElement
{
    enum Type
    {
        FloatFloatFloatFloat = DXGI_FORMAT_R32G32B32A32_FLOAT,
        FloatFloatFloat = DXGI_FORMAT_R32G32B32_FLOAT,
        FloatFloat = DXGI_FORMAT_R32G32_FLOAT,
        ByteByteByteByte = DXGI_FORMAT_R8G8B8A8_UNORM,
        UInt = DXGI_FORMAT_R32_UINT,
        IntIntIntInt = DXGI_FORMAT_R32G32B32A32_SINT,
    };

    Type m_Type;
    LPCSTR m_Name;
    D3D11_INPUT_CLASSIFICATION m_Class;
    int m_Slot;
    bool m_ResetOffset;
    UINT m_RendersPerInstance;

    static unsigned int GetSize(Type type)
    {
        switch (type)
        {
        case FloatFloatFloatFloat:
            return sizeof(float) * 4;
        case FloatFloatFloat:
            return sizeof(float) * 3;
        case FloatFloat:
            return sizeof(float) * 2;
        case ByteByteByteByte:
            return sizeof(char) * 4;
        case IntIntIntInt:
            return sizeof(int) * 4;
        case UInt:
            return sizeof(unsigned int);
        default:
            ERR("Unknown size found");
            return 0;
        }
    }
};

class BufferFormat
{
    Vector<VertexBufferElement> m_Elements;

public:
    BufferFormat() = default;

    void push(VertexBufferElement::Type type, LPCSTR name, D3D11_INPUT_CLASSIFICATION elementClass, int slot, bool resetOffset, UINT rendersPerInstance) { m_Elements.push_back(VertexBufferElement { type, name, elementClass, slot, resetOffset, rendersPerInstance }); }

    const Vector<VertexBufferElement>& getElements() const { return m_Elements; }
};