Polygons.h


// ===========================================================================
/// <summary>
/// Polygons.cpp
/// DirectXIntroduction
/// created by Mehrdad Soleimanimajd on 31.08.2019
/// </summary>
/// <created>ʆϒʅ, 31.08.2019</created>
/// <changed>ʆϒʅ, 05.07.2023</changed>
// ===========================================================================

#ifndef POLYGONS_H
#define POLYGONS_H


#include <d3d10_1.h>
#include <DirectXMath.h>
#include <string>

#include "ModelFormats.h"


// object models base class
template <class tType>
class Model
{
private:
    std::wstring entryPoint;
    bool dynamic; // true: dynamic usage + write access for CPU
protected:
    ID3D10Device1* device; // pointer to Direct3D device

    D3D10_BUFFER_DESC vertexBufferDesc;
    // 2D/3D models buffer containers, drawn by invoked shaders that are compiled into vertex/pixel shaders
    ID3D10Buffer* vertexBuffer; // models' vertex buffer

    D3D10_SUBRESOURCE_DATA subResourceDate; // to interface with the object model vertices as resources

    D3D10_BUFFER_DESC indexBufferDesc;
    ID3D10Buffer* indexBuffer; // models' index buffer
    // Note index buffers purposes: record the location of each vertex introduced in vertex buffer,
    // achieving much hider speed, and helps to cache the vertices data in faster locations of video memory.

    bool allocate (tType*, unsigned long*, unsigned long&); // object model resources allocation
public:
    Model (ID3D10Device1*, std::wstring, bool);
    ID3D10Buffer** const getVertexBuffer (void); // vertex buffer
    ID3D10Buffer* const getIndexBuffer (void); // index buffer
    void release (void); // release the object model
};
void O2DmodelClassLinker (void); // don't call this function: solution for linker error, when using templates.


class Triangles : public Model<Vertex>
{
private:
    Vertex verticesData [9]; // object model vertices dataobject model vertices data
    unsigned long verticesIndices [9]; // object model vertices dataobject model vertices indices
public:
    unsigned long verticesCount; // object model vertices dataobject model vertices count
    bool allocated; // true after successful resource allocation

    Triangles (ID3D10Device1*);
};


class Line : public Model<Vertex>
{
private:
    Vertex verticesData [2]; // object model vertices dataobject model vertices data
    unsigned long verticesIndex [2]; // object model vertices dataobject model vertices indices
public:
    unsigned long verticesCount; // object model vertices dataobject model vertices count
    bool allocated; // true after successful resource allocation

    D3D10_MAPPED_TEXTURE2D mappedRes; // updating the resource
    // note DirectX 11: D3D11_MAPPED_SUBRESOURCE

    Line (ID3D10Device1*);
    void update (void);
};


class TexturedTriangles : public Model<VertexT>
{
private:
    VertexT verticesData [6]; // object model vertices dataobject model vertices data
    unsigned long verticesIndex [6]; // object model vertices dataobject model vertices indices
public:
    unsigned long verticesCount; // object model vertices dataobject model vertices count
    bool allocated; // true after successful resource allocation

    TexturedTriangles (ID3D10Device1*);
};


class LightedTriangle : public Model<VertexL>
{
private:
    VertexL verticesData [3]; // object model vertices dataobject model vertices data
    unsigned long verticesIndex [3]; // object model vertices dataobject model vertices indices
public:
    unsigned long verticesCount; // object model vertices dataobject model vertices count
    bool allocated; // true after successful resource allocation

    LightedTriangle (ID3D10Device1*);
};


class Cube : public Model<VertexL>
{
private:
    VertexL* verticesData; // object model vertices dataobject model vertices data
    unsigned long* verticesIndex; // object model vertices dataobject model vertices indices
public:
    unsigned long verticesCount; // object model vertices dataobject model vertices count
    bool allocated; // true after successful resource allocation

    Cube (ID3D10Device1*);
};


#endif // !POLYGONS_H