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发表于 2006-2-10 09:11:00
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显示全部楼层
Re:DirectX SDK(2006年2月)--发布
//--------------------------------------------------------------------------------------
// File: Tutorial01.cpp
//
// This application demonstrates creating a Direct3D 10 device
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//--------------------------------------------------------------------------------------
#include <windows.h>
#include <d3d10.h>
#include <d3dx10.h>
#include "resource.h"
//--------------------------------------------------------------------------------------
// Global Variables
//--------------------------------------------------------------------------------------
HINSTANCE g_hInst = NULL;
HWND g_hWnd = NULL;
ID3D10Device* g_pd3dDevice = NULL;
IDXGISwapChain* g_pSwapChain = NULL;
ID3D10RenderTargetView* g_pRenderTargetView = NULL;
//--------------------------------------------------------------------------------------
// Forward declarations
//--------------------------------------------------------------------------------------
HRESULT InitWindow( HINSTANCE hInstance, int nCmdShow );
HRESULT InitDevice();
void CleanupDevice();
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
void Render();
//--------------------------------------------------------------------------------------
// Entry point to the program. Initializes everything and goes into a message processing
// loop. Idle time is used to render the scene.
//--------------------------------------------------------------------------------------
int WINAPI wWinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLine, int nCmdShow )
{
if( FAILED( InitWindow( hInstance, nCmdShow ) ) )
return 0;
if( FAILED( InitDevice() ) )
{
CleanupDevice();
return 0;
}
// Main message loop
MSG msg = {0};
while( WM_QUIT != msg.message )
{
if( PeekMessage( &msg, NULL, 0, 0, PM_REMOVE ) )
{
TranslateMessage( &msg );
DispatchMessage( &msg );
}
else
{
Render();
}
}
CleanupDevice();
return (int) msg.wParam;
}
//--------------------------------------------------------------------------------------
// Register class and create window
//--------------------------------------------------------------------------------------
HRESULT InitWindow( HINSTANCE hInstance, int nCmdShow )
{
// Register class
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = LoadIcon(hInstance, (LPCTSTR)IDI_TUTORIAL1);
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = NULL;
wcex.lpszClassName = L"TutorialWindowClass";
wcex.hIconSm = LoadIcon(wcex.hInstance, (LPCTSTR)IDI_TUTORIAL1);
if( !RegisterClassEx(&wcex) )
return E_FAIL;
// Create window
g_hInst = hInstance;
RECT rc = { 0, 0, 640, 480 };
AdjustWindowRect( &rc, WS_OVERLAPPEDWINDOW, FALSE );
g_hWnd = CreateWindow( L"TutorialWindowClass", L"Direct3D 10 Tutorial 1: Direct3D 10 Basics", WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT, rc.right - rc.left, rc.bottom - rc.top, NULL, NULL, hInstance, NULL);
if( !g_hWnd )
return E_FAIL;
ShowWindow( g_hWnd, nCmdShow );
return S_OK;
}
//--------------------------------------------------------------------------------------
// Called every time the application receives a message
//--------------------------------------------------------------------------------------
LRESULT CALLBACK WndProc( HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam )
{
PAINTSTRUCT ps;
HDC hdc;
switch (message)
{
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
EndPaint(hWnd, &ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
//--------------------------------------------------------------------------------------
// Create Direct3D device and swap chain
//--------------------------------------------------------------------------------------
HRESULT InitDevice()
{
HRESULT hr;
DXGI_SWAP_CHAIN_DESC sd;
ZeroMemory( &sd, sizeof(sd) );
sd.BackBufferCount = 1;
sd.BackBufferDesc.Width = 640;
sd.BackBufferDesc.Height = 480;
sd.BackBufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
sd.BackBufferDesc.RefreshRate.Numerator = 60;
sd.BackBufferDesc.RefreshRate.Denominator = 1;
sd.BackBufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
sd.OutputWindow = g_hWnd;
sd.SampleDesc.Count = 1;
sd.SampleDesc.Quality = 0;
sd.Windowed = TRUE;
hr = D3D10CreateDeviceAndSwapChain( NULL, D3D10_DRIVER_TYPE_REFERENCE,
NULL, 0, D3D10_SDK_VERSION, &sd,
&g_pSwapChain, &g_pd3dDevice );
if( FAILED(hr) )
return hr;
// Create a render target view
ID3D10Texture2D *pBackBuffer;
hr = g_pSwapChain->GetBackBuffer( 0, __uuidof( ID3D10Texture2D ), (LPVOID*)&pBackBuffer );
if( FAILED(hr) )
return hr;
hr = g_pd3dDevice->CreateRenderTargetView( pBackBuffer, NULL, &g_pRenderTargetView );
pBackBuffer->Release();
if( FAILED(hr) )
return hr;
g_pd3dDevice->OMSetRenderTargets( 1, &g_pRenderTargetView, NULL );
// Setup the viewport
D3D10_VIEWPORT vp;
vp.Width = 640.0f;
vp.Height = 480.0f;
vp.MinDepth = 0.0f;
vp.MaxDepth = 1.0f;
vp.TopLeftX = 0.0f;
vp.TopLeftY = 0.0f;
g_pd3dDevice->RSSetViewports( 1, &vp );
return S_OK;
}
//--------------------------------------------------------------------------------------
// Render the frame
//--------------------------------------------------------------------------------------
void Render()
{
// Just clear the backbuffer
float ClearColor[4] = { 0.0f, 0.125f, 0.3f, 1.0f }; //red,green,blue,alpha
g_pd3dDevice->ClearRenderTargetView( g_pRenderTargetView, ClearColor );
g_pSwapChain-> resent( NULL, NULL, NULL, 0, 0, 0 );
}
//--------------------------------------------------------------------------------------
// Clean up the objects we've created
//--------------------------------------------------------------------------------------
void CleanupDevice()
{
if( g_pRenderTargetView ) g_pRenderTargetView->Release();
if( g_pSwapChain ) g_pSwapChain->Release();
if( g_pd3dDevice ) g_pd3dDevice->Release();
}
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