DirectX入门之快速开发框架

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//////////////////////////////////////////////////////////////////////////////////////////////////
//
// File: d3dUtility.h
//
// Author: Frank Luna (C) All Rights Reserved
//
// System: AMD Athlon 1800+ XP, 512 DDR, Geforce 3, Windows XP, MSVC++ 7.0
//
// Desc: Provides utility functions for simplifying common tasks.
//
//////////////////////////////////////////////////////////////////////////////////////////////////

#ifndef __d3dUtilityH__
#define __d3dUtilityH__

#include <d3dx9.h>
#include <string>

namespace d3d
{
bool InitD3D(
HINSTANCE hInstance,       // [in] Application instance.
int width, int height,     // [in] Backbuffer dimensions.
bool windowed,             // [in] Windowed (true)or full screen (false).
D3DDEVTYPE deviceType,     // [in] HAL or REF
IDirect3DDevice9** device);// [out]The created device.

int EnterMsgLoop(
bool(*ptr_display)(float timeDelta));

LRESULT CALLBACK WndProc(
HWND hwnd,
UINT msg,
WPARAM wParam,
LPARAM lParam);

template<class T> void Release(T t)
{
if (t)
{
t->Release();
t = 0;
}
}

template<class T> void Delete(T t)
{
if (t)
{
delete t;
t = 0;
}
}

const D3DXCOLOR      WHITE(D3DCOLOR_XRGB(255, 255, 255));
const D3DXCOLOR      BLACK(D3DCOLOR_XRGB(0, 0, 0));
const D3DXCOLOR        RED(D3DCOLOR_XRGB(255, 0, 0));
const D3DXCOLOR      GREEN(D3DCOLOR_XRGB(0, 255, 0));
const D3DXCOLOR       BLUE(D3DCOLOR_XRGB(0, 0, 255));
const D3DXCOLOR     YELLOW(D3DCOLOR_XRGB(255, 255, 0));
const D3DXCOLOR       CYAN(D3DCOLOR_XRGB(0, 255, 255));
const D3DXCOLOR    MAGENTA(D3DCOLOR_XRGB(255, 0, 255));

//
// Lights
//

D3DLIGHT9 InitDirectionalLight(D3DXVECTOR3* direction, D3DXCOLOR* color);
D3DLIGHT9 InitPointLight(D3DXVECTOR3* position, D3DXCOLOR* color);
D3DLIGHT9 InitSpotLight(D3DXVECTOR3* position, D3DXVECTOR3* direction, D3DXCOLOR* color);

//
// Materials
//

D3DMATERIAL9 InitMtrl(D3DXCOLOR a, D3DXCOLOR d, D3DXCOLOR s, D3DXCOLOR e, float p);

const D3DMATERIAL9 WHITE_MTRL = InitMtrl(WHITE, WHITE, WHITE, BLACK, 2.0f);
const D3DMATERIAL9 RED_MTRL = InitMtrl(RED, RED, RED, BLACK, 2.0f);
const D3DMATERIAL9 GREEN_MTRL = InitMtrl(GREEN, GREEN, GREEN, BLACK, 2.0f);
const D3DMATERIAL9 BLUE_MTRL = InitMtrl(BLUE, BLUE, BLUE, BLACK, 2.0f);
const D3DMATERIAL9 YELLOW_MTRL = InitMtrl(YELLOW, YELLOW, YELLOW, BLACK, 2.0f);
}

#endif // __d3dUtilityH__

#include "stdafx.h"
#include "d3dtool.h"
#include<timeapi.h>
#pragma comment(lib, "winmm.lib")
#pragma comment(lib, "d3d9.lib")
#pragma comment(lib, "d3dx9.lib")
#pragma comment(lib, "dinput8.lib")
#pragma comment(lib, "dxguid.lib")
//////////////////////////////////////////////////////////////////////////////////////////////////
//
// File: d3dUtility.cpp
//
// Author: Frank Luna (C) All Rights Reserved
//
// System: AMD Athlon 1800+ XP, 512 DDR, Geforce 3, Windows XP, MSVC++ 7.0
//
// Desc: Provides utility functions for simplifying common tasks.
//
//////////////////////////////////////////////////////////////////////////////////////////////////

bool d3d::InitD3D(
HINSTANCE hInstance,
int width, int height,
bool windowed,
D3DDEVTYPE deviceType,
IDirect3DDevice9** device)
{
//
// Create the main application window.
//

WNDCLASS wc;

wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = (WNDPROC)d3d::WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(0, IDI_APPLICATION);
wc.hCursor = LoadCursor(0, IDC_ARROW);
wc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
wc.lpszMenuName = 0;
wc.lpszClassName = L"Direct3D9App";

if (!RegisterClass(&wc))
{
::MessageBox(0, L"RegisterClass() - FAILED", 0, 0);
return false;
}

HWND hwnd = 0;
hwnd = ::CreateWindow(L"Direct3D9App",L"Direct3D9App",
WS_EX_TOPMOST,
0, 0, width, height,
0 /*parent hwnd*/, 0 /* menu */, hInstance, 0 /*extra*/);

if (!hwnd)
{
::MessageBox(0, L"CreateWindow() - FAILED", 0, 0);
return false;
}

::ShowWindow(hwnd, SW_SHOW);
::UpdateWindow(hwnd);

//
// Init D3D:
//

HRESULT hr = 0;

// Step 1: Create the IDirect3D9 object.

IDirect3D9* d3d9 = 0;
d3d9 = Direct3DCreate9(D3D_SDK_VERSION);

if (!d3d9)
{
::MessageBox(0, L"Direct3DCreate9() - FAILED", 0, 0);
return false;
}

// Step 2: Check for hardware vp.

D3DCAPS9 caps;
d3d9->GetDeviceCaps(D3DADAPTER_DEFAULT, deviceType, &caps);

int vp = 0;
if (caps.DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT)
vp = D3DCREATE_HARDWARE_VERTEXPROCESSING;
else
vp = D3DCREATE_SOFTWARE_VERTEXPROCESSING;

// Step 3: Fill out the D3DPRESENT_PARAMETERS structure.

D3DPRESENT_PARAMETERS d3dpp;
d3dpp.BackBufferWidth = width;
d3dpp.BackBufferHeight = height;
d3dpp.BackBufferFormat = D3DFMT_A8R8G8B8;
d3dpp.BackBufferCount = 1;
d3dpp.MultiSampleType = D3DMULTISAMPLE_NONE;
d3dpp.MultiSampleQuality = 0;
d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
d3dpp.hDeviceWindow = hwnd;
d3dpp.Windowed = windowed;
d3dpp.EnableAutoDepthStencil = true;
d3dpp.AutoDepthStencilFormat = D3DFMT_D24S8;
d3dpp.Flags = 0;
d3dpp.FullScreen_RefreshRateInHz = D3DPRESENT_RATE_DEFAULT;
d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;

// Step 4: Create the device.

hr = d3d9->CreateDevice(
D3DADAPTER_DEFAULT, // primary adapter
deviceType,         // device type
hwnd,               // window associated with device
vp,                 // vertex processing
&d3dpp,             // present parameters
device);            // return created device

if (FAILED(hr))
{
// try again using a 16-bit depth buffer
d3dpp.AutoDepthStencilFormat = D3DFMT_D16;

hr = d3d9->CreateDevice(
D3DADAPTER_DEFAULT,
deviceType,
hwnd,
vp,
&d3dpp,
device);

if (FAILED(hr))
{
d3d9->Release(); // done with d3d9 object
::MessageBox(0, L"CreateDevice() - FAILED", 0, 0);
return false;
}
}

d3d9->Release(); // done with d3d9 object

return true;
}

int d3d::EnterMsgLoop(bool(*ptr_display)(float timeDelta))
{
MSG msg;
::ZeroMemory(&msg, sizeof(MSG));

static float lastTime = (float)timeGetTime();

while (msg.message != WM_QUIT)
{
if (::PeekMessage(&msg, 0, 0, 0, PM_REMOVE))
{
::TranslateMessage(&msg);
::DispatchMessage(&msg);
}
else
{
float currTime = (float)timeGetTime();
float timeDelta = (currTime - lastTime)*0.001f;

ptr_display(timeDelta);

lastTime = currTime;
}
}
return msg.wParam;
}

D3DLIGHT9 d3d::InitDirectionalLight(D3DXVECTOR3* direction, D3DXCOLOR* color)
{
D3DLIGHT9 light;
::ZeroMemory(&light, sizeof(light));

light.Type = D3DLIGHT_DIRECTIONAL;
light.Ambient = *color * 0.4f;
light.Diffuse = *color;
light.Specular = *color * 0.6f;
light.Direction = *direction;

return light;
}

D3DLIGHT9 d3d::InitPointLight(D3DXVECTOR3* position, D3DXCOLOR* color)
{
D3DLIGHT9 light;
::ZeroMemory(&light, sizeof(light));

light.Type = D3DLIGHT_POINT;
light.Ambient = *color * 0.4f;
light.Diffuse = *color;
light.Specular = *color * 0.6f;
light.Position = *position;
light.Range = 1000.0f;
light.Falloff = 1.0f;
light.Attenuation0 = 1.0f;
light.Attenuation1 = 0.0f;
light.Attenuation2 = 0.0f;

return light;
}

D3DLIGHT9 d3d::InitSpotLight(D3DXVECTOR3* position, D3DXVECTOR3* direction, D3DXCOLOR* color)
{
D3DLIGHT9 light;
::ZeroMemory(&light, sizeof(light));

light.Type = D3DLIGHT_SPOT;
light.Ambient = *color * 0.4f;
light.Diffuse = *color;
light.Specular = *color * 0.6f;
light.Position = *position;
light.Direction = *direction;
light.Range = 1000.0f;
light.Falloff = 1.0f;
light.Attenuation0 = 1.0f;
light.Attenuation1 = 0.0f;
light.Attenuation2 = 0.0f;
light.Theta = 0.5f;
light.Phi = 0.7f;

return light;
}

D3DMATERIAL9 d3d::InitMtrl(D3DXCOLOR a, D3DXCOLOR d, D3DXCOLOR s, D3DXCOLOR e, float p)
{
D3DMATERIAL9 mtrl;
mtrl.Ambient = a;
mtrl.Diffuse = d;
mtrl.Specular = s;
mtrl.Emissive = e;
mtrl.Power = p;
return mtrl;
}

//win32_directx.cpp: 定义应用程序的入口点。
//

#include "stdafx.h"
#include "win32_directx.h"
#include<d3d9.h>
#include<timeapi.h>
#include"d3dtool.h"
#include "targetver.h"

#pragma comment(lib, "winmm.lib")
#pragma comment(lib, "d3d9.lib")
#pragma comment(lib, "d3dx9.lib")
#pragma comment(lib, "dinput8.lib")
#pragma comment(lib, "dxguid.lib")
//////////////////////////////////////////////////////////////////////////////////////////////////
//
// File: d3dinit.cpp
//
// Author: Frank Luna (C) All Rights Reserved
//
// System: AMD Athlon 1800+ XP, 512 DDR, Geforce 3, Windows XP, MSVC++ 7.0
//
// Desc: Demonstrates how to initialize Direct3D, how to use the book's framework
//       functions, and how to clear the screen to black.  Note that the Direct3D
//       initialization code is in the d3dUtility.h/.cpp files.
//
//////////////////////////////////////////////////////////////////////////////////////////////////

//
// Globals
//

IDirect3DDevice9* Device = 0;

//
// Framework Functions
//

bool Setup()
{
// Nothing to setup in this sample.

return true;
}

void Cleanup()
{
// Nothing to cleanup in this sample.
}

bool Display(float timeDelta)
{
if (Device) // Only use Device methods if we have a valid device.
{
// Instruct the device to set each pixel on the back buffer black -
// D3DCLEAR_TARGET: 0x00000000 (black) - and to set each pixel on
// the depth buffer to a value of 1.0 - D3DCLEAR_ZBUFFER: 1.0f.
Device->Clear(0, 0, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, 0x00000000, 1.0f, 0);

// Swap the back and front buffers.
Device->Present(0, 0, 0, 0);
}
return true;
}

//
// WndProc
//
LRESULT CALLBACK d3d::WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch (msg)
{
case WM_DESTROY:
::PostQuitMessage(0);
break;

case WM_KEYDOWN:
if (wParam == VK_ESCAPE)
::DestroyWindow(hwnd);
break;
}
return ::DefWindowProc(hwnd, msg, wParam, lParam);
}

//
// WinMain
//
int WINAPI WinMain(HINSTANCE hinstance,
HINSTANCE prevInstance,
PSTR cmdLine,
int showCmd)
{
if (!d3d::InitD3D(hinstance,
640, 480, true, D3DDEVTYPE_HAL, &Device))
{
::MessageBox(0, L"InitD3D() - FAILED", 0, 0);
return 0;
}

if (!Setup())
{
::MessageBox(0, L"Setup() - FAILED", 0, 0);
return 0;
}

d3d::EnterMsgLoop(Display);

Cleanup();

Device->Release();

return 0;
}