indices.h

//##################################################################################################
//
// Copyright (c) 2024 Beijing Qiongqi Tech Co.,Ltd. All rights reserved. 
 
// This source code is confidential and proprietary to Beijing Qiongqi Tech Co.,Ltd(The Holder). 
// Any unauthorized use, copying, modification, or distribution of the code is strictly prohibited. 
// Any user shall obtain authorizaition from the Holder before modifying the source code. And the user shall not
// sublicense, sell, distribute, or transfer the source code, whether in original or modified form, to any third party
// without the prior written consent of the Holder.
 
// This copyright notice and permission grant shall be included in all copies or substantial portions of the source code.
 
// Author  Cumulia Illustrator
// Date    2024-05-01
// Version V1.0.0
//##################################################################################################
 
#pragma once
 
#include "../variant/typedarray.h"
#include "../object/object.h"
 
#include <memory>
 
namespace cil
{
    class Indices : public Object
    {
    protected:
        std::string m_className;
 
    public:
        enum class Mode
        {
            TRIANGLES,
            TRIANGLE_FAN,
            TRIANGLE_STRIP,
            LINES,
            LINE_LOOP,
            LINE_STRIP,
            POINTS
        };
 
        Mode mode; 
        int count; 
        int primCount;
 
        Indices(Indices::Mode mode,
            int count,
            int primCount);
 
        const std::string& className() const;
    };
 
    class ArrayIndices : public Indices
    {
    public:
        int first;
 
        ArrayIndices(Indices::Mode mode,
            int count,
            int first = 0,
            int primCount = 0);
    };
 
    class ElementIndices : public Indices
    {
    public:
        std::shared_ptr<ArrayBuffer> buffer;
        int offset;
 
        ElementIndices(Indices::Mode mode,
            const std::shared_ptr<ArrayBuffer>& buffer,
            int count,
            int offset = 0,
            int primCount = 0);
    };
}