#include <windows.h>
#include <d3dx9.h>
#pragma comment(lib,"d3d9.lib")
//----------------------------------------------------------------------------
//定义为全屏模式
//----------------------------------------------------------------------------
//#define FULLSCREEN
//-----------------------------------------------------------------------------
//全局变量声明
//-----------------------------------------------------------------------------
static const int WIDTH = 800;
static const int HEIGHT = 600;
LPDIRECT3D9 g_pD3D = NULL;
LPDIRECT3DDEVICE9 g_pd3dDevice = NULL;
//-----------------------------------------------------------------------------
//函数声明
//-----------------------------------------------------------------------------
HWND InitHWND(HINSTANCE,int,int,int,int,char*);
HRESULT InitD3D(HWND);
void Cleanup();
void Render();
LRESULT WINAPI MsgProc(HWND,UINT,WPARAM,LPARAM);
//----------------------------------------------------------------------------
//初始化窗口
//----------------------------------------------------------------------------
HWND InitHWND(HINSTANCE hInst,int l,int t,int w,int h,char*title)
{
//注册窗口类型
WNDCLASSEX wc = { sizeof(WNDCLASSEX), CS_CLASSDC, MsgProc, 0L, 0L,
hInst, NULL, NULL, NULL, NULL,"Lesson1", NULL };
RegisterClassEx( &wc );
//创建程序窗口
HWND hWnd = CreateWindow( "Lesson1", title, WS_OVERLAPPEDWINDOW, l, t, w, h,
NULL, NULL, wc.hInstance, NULL );
return hWnd;
}
//-----------------------------------------------------------------------------
//初始化D3d
//-----------------------------------------------------------------------------
HRESULT InitD3D(HWND hwnd)
{
//创建D3D
g_pD3D=Direct3DCreate9(D3D_SDK_VERSION);
if(g_pD3D==NULL)return E_FAIL;
//设置D3D参数，以创建D3D设备
D3DPRESENT_PARAMETERS d3dpp;
ZeroMemory(&d3dpp,sizeof(d3dpp));
d3dpp.hDeviceWindow = hwnd;
d3dpp.BackBufferCount = 1;
d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
#ifdef FULLSCREEN
d3dpp.Windowed = false;
d3dpp.BackBufferHeight = HEIGHT;
d3dpp.BackBufferWidth = WIDTH;
d3dpp.BackBufferFormat = D3DFMT_R5G6B5;
#else
d3dpp.Windowed = true;
d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;
#endif//FULLSCREEN
//创建D3D设备
if(FAILED(g_pD3D->CreateDevice(D3DADAPTER_DEFAULT,D3DDEVTYPE_HAL,hwnd,D3DCREATE_SOFTWARE_VERTEXPROCESSING,
&d3dpp,&g_pd3dDevice)))
{
return E_FAIL;
}
return S_OK;
}
//-----------------------------------------------------------------------------
//清除操作，释放的时候，按顺序释放
//-----------------------------------------------------------------------------
void Cleanup()
{
if(g_pd3dDevice!=NULL)
{
g_pd3dDevice->Release();
g_pd3dDevice=NULL;
}
if(g_pD3D!=NULL)
{
g_pD3D->Release();
g_pD3D=NULL;
}
}
//-----------------------------------------------------------------------------
//渲染过程
//-----------------------------------------------------------------------------
void Render()
{
if(g_pd3dDevice==NULL)return;
//用蓝色清除离屏缓冲区
g_pd3dDevice->Clear(0,NULL,D3DCLEAR_TARGET,D3DCOLOR_XRGB(0,0,255),1.0f,0);
//开始渲染
if(SUCCEEDED(g_pd3dDevice->BeginScene()))
{
g_pd3dDevice->EndScene();
}
//翻转离屏缓冲区
g_pd3dDevice->Present(NULL,NULL,NULL,NULL);
}
//-----------------------------------------------------------------------------
//窗口过程处理函数
//-----------------------------------------------------------------------------
LRESULT WINAPI MsgProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam )
{
switch( msg )
{
case WM_DESTROY:
Cleanup();
PostQuitMessage( 0 );
return 0;
case WM_PAINT:
Render();
ValidateRect( hWnd, NULL );
return 0;
}
return DefWindowProc( hWnd, msg, wParam, lParam );
}
int WINAPI WinMain(HINSTANCE hInst,HINSTANCE,LPSTR,int)
{
HWND hWnd=InitHWND(hInst,0,0,WIDTH,HEIGHT,"第一课");
//初始化D3D
if( SUCCEEDED( InitD3D( hWnd ) ) )
{
//显示窗口
ShowWindow( hWnd, SW_SHOWDEFAULT );
UpdateWindow( hWnd );
//进入消息循环
MSG msg;
while( GetMessage( &msg, NULL, 0, 0 ) )
{
TranslateMessage( &msg );
DispatchMessage( &msg );
}
}
return 0;
}
