在D3D环境下进行2D图形绘制。

在D3D环境下进行2D图形绘制。

D3DImage类：这个类是是用来载入图片，绘制图片。

//-----------------------------------------------------------------------------
// 文件: D3DImage.h
// 描述: D3DImage类的头文件，定义变量，函数。
//-----------------------------------------------------------------------------
#pragma once
#include <d3dx9.h>
#pragma comment (lib, "d3d9.lib")
#pragma comment (lib, "d3dx9.lib")
class D3DImage
{
public:
    D3DImage(void);
    D3DImage(LPDIRECT3DDEVICE9 _pd3dDevice);
public:
    ~D3DImage(void);
public:
    HRESULT setVertex();
    VOID drawImage(INT _mode, FLOAT _parameter, FLOAT _parameter2=0);
    VOID setPosition(FLOAT _x, FLOAT _y);
    VOID setCenter(FLOAT _x, FLOAT _y);
    VOID setZoom(FLOAT _zoomX, FLOAT _zoomY);
    VOID setRotation(FLOAT _rotation);
    VOID move(FLOAT _x, FLOAT _y);
    VOID loadImage(LPCTSTR  _pSrcFile);
private:
    VOID drawImageIndex(INT _index);
    VOID drawImageAnime(INT _delay);
    VOID drawImageRotation( FLOAT _rotation, INT _index);
private:
    LPDIRECT3DDEVICE9       m_pd3dDevice;           // D3D设备，用于渲染
    LPDIRECT3DVERTEXBUFFER9 m_pVB;                  // 顶点缓冲
    LPDIRECT3DTEXTURE9 *    m_pTexture;             // 纹理指针数组
    FLOAT                   m_fX, m_fY;             // 图片坐标
    FLOAT                   m_fWidth;               // 图片宽度
    FLOAT                   m_fHeight;              // 图片高度
    FLOAT                   m_fZoomX;               // 图片X轴方向缩放比率
    FLOAT                   m_fZoomY;               // 图片Y轴方向缩放比率
    FLOAT *                 m_fRotation;            // 图片旋转角度
    INT                     m_iMaxIndex;            // 最大帧数
    INT                     m_iCurrentIndex;        // 当前帧数
    INT                     m_iDelay;               // 延迟变量
    FLOAT *                 m_fRotationTemp;        // 图片旋转角度临时指针
    LPDIRECT3DTEXTURE9 *    m_pTextureTemp;         // 纹理指针数组临时指针
    //自定义定点结构体
    struct CUSTOMVERTEX
    {
        FLOAT x, y, z;          // 3D坐标
        DWORD color;            // 顶点颜色
        FLOAT u, v;             // 顶点纹理
    };
    // 自定义FVF
#define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ|D3DFVF_DIFFUSE|D3DFVF_TEX1)
};

//----------------------------------------------------------------------------- // 文件: D3DImage.h // 描述: D3DImage类的头文件，定义变量，函数。 //----------------------------------------------------------------------------- #pragma once #include <d3dx9.h> #pragma comment (lib, "d3d9.lib") #pragma comment (lib, "d3dx9.lib") class D3DImage { public: D3DImage(void); D3DImage(LPDIRECT3DDEVICE9 _pd3dDevice); public: ~D3DImage(void); public: HRESULT setVertex(); VOID drawImage(INT _mode, FLOAT _parameter, FLOAT _parameter2=0); VOID setPosition(FLOAT _x, FLOAT _y); VOID setCenter(FLOAT _x, FLOAT _y); VOID setZoom(FLOAT _zoomX, FLOAT _zoomY); VOID setRotation(FLOAT _rotation); VOID move(FLOAT _x, FLOAT _y); VOID loadImage(LPCTSTR _pSrcFile); private: VOID drawImageIndex(INT _index); VOID drawImageAnime(INT _delay); VOID drawImageRotation( FLOAT _rotation, INT _index); private: LPDIRECT3DDEVICE9 m_pd3dDevice; // D3D设备，用于渲染 LPDIRECT3DVERTEXBUFFER9 m_pVB; // 顶点缓冲 LPDIRECT3DTEXTURE9 * m_pTexture; // 纹理指针数组 FLOAT m_fX, m_fY; // 图片坐标 FLOAT m_fWidth; // 图片宽度 FLOAT m_fHeight; // 图片高度 FLOAT m_fZoomX; // 图片X轴方向缩放比率 FLOAT m_fZoomY; // 图片Y轴方向缩放比率 FLOAT * m_fRotation; // 图片旋转角度 INT m_iMaxIndex; // 最大帧数 INT m_iCurrentIndex; // 当前帧数 INT m_iDelay; // 延迟变量 FLOAT * m_fRotationTemp; // 图片旋转角度临时指针 LPDIRECT3DTEXTURE9 * m_pTextureTemp; // 纹理指针数组临时指针 //自定义定点结构体 struct CUSTOMVERTEX { FLOAT x, y, z; // 3D坐标 DWORD color; // 顶点颜色 FLOAT u, v; // 顶点纹理 }; // 自定义FVF #define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ|D3DFVF_DIFFUSE|D3DFVF_TEX1) }; 

//-----------------------------------------------------------------------------
// 文件: D3DImage.cpp
// 描述: 实现2D图片的绘制。可以缩放，移动，旋转图片。可实现基本动画。
//-----------------------------------------------------------------------------
#include "D3DImage.h"
D3DImage::D3DImage(void)
{
}
//-----------------------------------------------------------------------------
// 名称: D3DImage()
// 描述: 自定义构造函数
//-----------------------------------------------------------------------------
D3DImage::D3DImage(LPDIRECT3DDEVICE9 _pd3dDevice)
{
    // 变量赋值、初始化
    m_pd3dDevice = _pd3dDevice;
    m_iMaxIndex = 0;
    m_iCurrentIndex = 0;
    m_iDelay = 0;
    m_fRotation = new FLOAT[m_iMaxIndex+1];
    m_pTexture = new LPDIRECT3DTEXTURE9[m_iMaxIndex+1];
    ZeroMemory(m_fRotation,(m_iMaxIndex+1)*sizeof(FLOAT));
    // 设置顶点
    setVertex();
}
D3DImage::~D3DImage(void)
{
}
//-----------------------------------------------------------------------------
// 名称: loadImgae()
// 描述: 载入图片
//-----------------------------------------------------------------------------
VOID D3DImage::loadImage(LPCTSTR  _pSrcFile)
{
    // 自动扩展纹理数组
    m_pTextureTemp = new LPDIRECT3DTEXTURE9[m_iMaxIndex+2];
    m_fRotationTemp = new FLOAT[m_iMaxIndex+2];
    ZeroMemory(m_fRotationTemp,(m_iMaxIndex+2)*sizeof(FLOAT));
    memcpy(m_pTextureTemp,m_pTexture, (m_iMaxIndex+1)*sizeof(LPDIRECT3DTEXTURE9));
    memcpy(m_fRotationTemp,m_fRotation, (m_iMaxIndex+1)*sizeof(FLOAT));

    delete m_pTexture;
    delete m_fRotation;
    m_pTexture = m_pTextureTemp;
    m_fRotation = m_fRotationTemp;
    // 获得图片基本信息
    D3DXIMAGE_INFO imageInfo;
    D3DXGetImageInfoFromFile(_pSrcFile, &imageInfo);
    // 载入图片
    D3DXCreateTextureFromFileEx(
        m_pd3dDevice,
        _pSrcFile,
        imageInfo.Width,
        imageInfo.Height,
        imageInfo.MipLevels,
        D3DUSAGE_RENDERTARGET,
        D3DFMT_A8R8G8B8,
        D3DPOOL_DEFAULT,
        D3DX_FILTER_NONE,
        D3DX_DEFAULT,
        0,
        NULL,
        NULL,
        &m_pTexture[m_iMaxIndex]);
    // 设置图片信息
    m_fWidth = imageInfo.Width;
    m_fHeight = imageInfo.Height;
    m_fX = m_fWidth/2;                      // 默认X坐标为宽度的一半
    m_fY = m_fHeight/2;                     // 默认Y坐标为高度的一半
    m_fZoomX = 1.0f;                        // 默认X1倍缩放
    m_fZoomY = 1.0f;                        // 默认Y1倍缩放
    // 索引上限加一
    m_iMaxIndex++;
}
//-----------------------------------------------------------------------------
// 名称: setPosition()
// 描述: 设置图片位置
//-----------------------------------------------------------------------------
VOID D3DImage::setPosition(FLOAT _x, FLOAT _y)
{
    m_fX = _x+m_fWidth/2*m_fZoomX;
    m_fY = _y+m_fHeight/2*m_fZoomY;
    setVertex();
}
//-----------------------------------------------------------------------------
// 名称: setCenter()
// 描述: 设置图片位置
//-----------------------------------------------------------------------------
VOID D3DImage::setCenter(FLOAT _x, FLOAT _y)
{
    m_fX = _x;
    m_fY = _y;
    setVertex();
}
//-----------------------------------------------------------------------------
// 名称: move()
// 描述: 移动图片位置
//-----------------------------------------------------------------------------
VOID D3DImage::move(FLOAT _x, FLOAT _y)
{
    m_fX += _x;
    m_fY += _y;
    setVertex();
}
//-----------------------------------------------------------------------------
// 名称: setZoom()
// 描述: 设置图片缩放
//-----------------------------------------------------------------------------
VOID D3DImage::setZoom(FLOAT _zoomX,FLOAT _zoomY)
{
    m_fZoomX = _zoomX;
    m_fZoomY = _zoomY;
    setVertex();
}
//-----------------------------------------------------------------------------
// 名称: setRotation()
// 描述: 设置图片旋转
//-----------------------------------------------------------------------------
VOID D3DImage::setRotation(FLOAT _rotation)
{
    _rotation = _rotation * D3DX_PI /180;
    D3DXMATRIX matRotate;
    D3DXMatrixIdentity(&matRotate);
    FLOAT _fCosR = cosf(_rotation);
    FLOAT _fSinR = sinf(_rotation);
    FLOAT _fCenterX = 0.5f;
    FLOAT _fCenterY = 0.5f;
    matRotate._11 = _fCosR;
    matRotate._12 = _fSinR;
    matRotate._21 = -_fSinR;
    matRotate._22 = _fCosR;
    matRotate._31 = _fCenterX + (-_fCenterY * _fCosR)-(-_fCenterX * _fSinR);
    matRotate._32 = _fCenterY + (-_fCenterY * _fSinR)+(-_fCenterX * _fCosR);
    m_pd3dDevice->SetTransform(D3DTS_TEXTURE0, &matRotate);
}
//-----------------------------------------------------------------------------
// 名称: setVertex()
// 描述: 设置图片位置
//-----------------------------------------------------------------------------
HRESULT D3DImage::setVertex()
{
    // 自定义顶点缓冲数组
    CUSTOMVERTEX Vertices[] =
    {
        //{m_fX-m_fWidth/2*m_fZoomX, m_fY-m_fHeight/2*m_fZoomY, 0.0f, 0xffffffff, (0       -0.5f)/m_fWidth, (0        -0.5f)/m_fHeight},        //0
        //{m_fX+m_fWidth/2*m_fZoomX, m_fY-m_fHeight/2*m_fZoomY, 0.0f, 0xffffffff, (m_fWidth-0.5f)/m_fWidth, (0        -0.5f)/m_fHeight},        //1
        //{m_fX+m_fWidth/2*m_fZoomX, m_fY+m_fHeight/2*m_fZoomY, 0.0f, 0xffffffff, (m_fWidth-0.5f)/m_fWidth, (m_fHeight-0.5f)/m_fHeight},        //2
        //{m_fX-m_fWidth/2*m_fZoomX, m_fY-m_fHeight/2*m_fZoomY, 0.0f, 0xffffffff, (0       -0.5f)/m_fWidth, (0        -0.5f)/m_fHeight},        //0
        //{m_fX+m_fWidth/2*m_fZoomX, m_fY+m_fHeight/2*m_fZoomY, 0.0f, 0xffffffff, (m_fWidth-0.5f)/m_fWidth, (m_fHeight-0.5f)/m_fHeight},        //2
        //{m_fX-m_fWidth/2*m_fZoomX, m_fY+m_fHeight/2*m_fZoomY, 0.0f, 0xffffffff, (0       -0.5f)/m_fWidth, (m_fHeight-0.5f)/m_fHeight},        //3
        {m_fX-m_fWidth/2*m_fZoomX, m_fY-m_fHeight/2*m_fZoomY, 0.0f, 0xffffffff, 0.0f, 0.0f},        //0
        {m_fX+m_fWidth/2*m_fZoomX, m_fY-m_fHeight/2*m_fZoomY, 0.0f, 0xffffffff, 1.0f, 0.0f},        //1
        {m_fX+m_fWidth/2*m_fZoomX, m_fY+m_fHeight/2*m_fZoomY, 0.0f, 0xffffffff, 1.0f, 1.0f},        //2
        {m_fX-m_fWidth/2*m_fZoomX, m_fY-m_fHeight/2*m_fZoomY, 0.0f, 0xffffffff, 0.0f, 0.0f},        //0
        {m_fX+m_fWidth/2*m_fZoomX, m_fY+m_fHeight/2*m_fZoomY, 0.0f, 0xffffffff, 1.0f, 1.0f},        //2
        {m_fX-m_fWidth/2*m_fZoomX, m_fY+m_fHeight/2*m_fZoomY, 0.0f, 0xffffffff, 0.0f, 1.0f},        //3
    };
    // 创建定点缓冲
    if( FAILED( m_pd3dDevice->CreateVertexBuffer( sizeof( Vertices ),
        0, D3DFVF_CUSTOMVERTEX,
        D3DPOOL_DEFAULT, &m_pVB, NULL ) ) )
    {
        return E_FAIL;
    }
    // 填充定点缓冲
    VOID* pVertices;
    if( FAILED( m_pVB->Lock( 0, sizeof( Vertices ), ( void** )&pVertices, 0 ) ) )
        return E_FAIL;
    memcpy( pVertices, Vertices, sizeof( Vertices ) );
    m_pVB->Unlock();
    return S_OK;
}
//-----------------------------------------------------------------------------
// 名称: drawImage()
// 描述: 绘制图片
//-----------------------------------------------------------------------------
VOID D3DImage::drawImage(INT _mode, FLOAT _parameter, FLOAT _parameter2)
{
    switch(_mode)
    {
    case 0:
        drawImageIndex(_parameter);
        break;
    case 1:
        drawImageAnime(_parameter);
        break;
    case 2:
        drawImageRotation(_parameter, _parameter2);
        break;
    }
}
//-----------------------------------------------------------------------------
// 名称: drawImageIndex()
// 描述: 绘制单一帧图片
//-----------------------------------------------------------------------------
VOID D3DImage::drawImageIndex(INT _index)
{
    if( SUCCEEDED( m_pd3dDevice->BeginScene() ) )
    {
        // 绘制
        m_pd3dDevice->SetStreamSource( 0, m_pVB, 0, sizeof( CUSTOMVERTEX ) );
        m_pd3dDevice->SetFVF( D3DFVF_CUSTOMVERTEX );
        // 设置贴图
        m_pd3dDevice->SetTexture(0,m_pTexture[_index]);
        // 绘制矩形
        m_pd3dDevice->DrawPrimitive( D3DPT_TRIANGLELIST, 0, 2);
        // 结束
        m_pd3dDevice->EndScene();
    }
}
//-----------------------------------------------------------------------------
// 名称: drawImageAnime()
// 描述: 绘制切帧动画
//-----------------------------------------------------------------------------
VOID D3DImage::drawImageAnime(INT _delay)
{
    if (m_iDelay < _delay)
        m_iDelay++;
    else
    {
        if (m_iCurrentIndex < m_iMaxIndex-1)
        {
            m_iCurrentIndex++;
        }
        else
        {
            m_iCurrentIndex = 0;
        }
        m_iDelay = 0;
    }
    if( SUCCEEDED( m_pd3dDevice->BeginScene() ) )
    {
        // 绘制
        m_pd3dDevice->SetStreamSource( 0, m_pVB, 0, sizeof( CUSTOMVERTEX ) );
        m_pd3dDevice->SetFVF( D3DFVF_CUSTOMVERTEX );
        // 设置贴图
        m_pd3dDevice->SetTexture(0,m_pTexture[m_iCurrentIndex]);
        // 绘制矩形
        m_pd3dDevice->DrawPrimitive( D3DPT_TRIANGLELIST, 0, 2);
        // 结束
        m_pd3dDevice->EndScene();
    }
}
//-----------------------------------------------------------------------------
// 名称: drawImageRotation()
// 描述: 绘制旋转动画
//-----------------------------------------------------------------------------
VOID D3DImage::drawImageRotation(FLOAT _rotation, INT _index)
{
    if (m_fRotation[_index] < 360)
    {
        m_fRotation[_index] += _rotation;
    }
    else
    {
        m_fRotation[_index] = m_fRotation[_index] - 360;
    }
    if( SUCCEEDED( m_pd3dDevice->BeginScene() ) )
    {
        // 绘制
        m_pd3dDevice->SetStreamSource( 0, m_pVB, 0, sizeof( CUSTOMVERTEX ) );
        m_pd3dDevice->SetFVF( D3DFVF_CUSTOMVERTEX );
        // 设置贴图
        m_pd3dDevice->SetTexture(0,m_pTexture[_index]);

        // 旋转贴图
        setRotation(m_fRotation[_index]);
        // 绘制矩形
        m_pd3dDevice->DrawPrimitive( D3DPT_TRIANGLELIST, 0, 2);
        // 恢复贴图旋转
        setRotation(0);
        // 结束
        m_pd3dDevice->EndScene();
    }
}