//d3dUtility.h
#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;
}
}
}
#endif // __d3dUtilityH__
//d3dUtility.cpp
#include "d3dUtility.h"
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 = "Direct3D9App";
if( !RegisterClass(&wc) )
{
::MessageBox(0, "RegisterClass() - FAILED", 0, 0);
return false;
}
HWND hwnd = 0;
hwnd = ::CreateWindow("Direct3D9App", "Direct3D9App",
WS_EX_TOPMOST,
0, 0, width, height,
0 /*parent hwnd*/, 0 /* menu */, hInstance, 0 /*extra*/);
if( !hwnd )
{
::MessageBox(0, "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, "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, "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;
}
//cube.cpp
#include "d3dUtility.h"
//
// Globals
//
IDirect3DDevice9* Device = 0;
const int Width = 640;
const int Height = 480;
IDirect3DVertexBuffer9* VB = 0;
IDirect3DIndexBuffer9* IB = 0;
//
// Classes and Structures
//
struct Vertex
{
Vertex(){}
Vertex(float x, float y, float z)
{
_x = x; _y = y; _z = z;
}
float _x, _y, _z;
static const DWORD FVF;
};
const DWORD Vertex::FVF = D3DFVF_XYZ;
//
// Framework Functions
//
bool Setup()
{
//
// Create vertex and index buffers.
//
Device->CreateVertexBuffer(
8 * sizeof(Vertex),
D3DUSAGE_WRITEONLY,
Vertex::FVF,
D3DPOOL_MANAGED,
&VB,
0);
Device->CreateIndexBuffer(
36 * sizeof(WORD),
D3DUSAGE_WRITEONLY,
D3DFMT_INDEX16,
D3DPOOL_MANAGED,
&IB,
0);
//
// Fill the buffers with the cube data.
//
// define unique vertices:
Vertex* vertices;
VB->Lock(0, 0, (void**)&vertices, 0);
// vertices of a unit cube
vertices[0] = Vertex(-1.0f, -1.0f, -1.0f);
vertices[1] = Vertex(-1.0f, 1.0f, -1.0f);
vertices[2] = Vertex( 1.0f, 1.0f, -1.0f);
vertices[3] = Vertex( 1.0f, -1.0f, -1.0f);
vertices[4] = Vertex(-1.0f, -1.0f, 1.0f);
vertices[5] = Vertex(-1.0f, 1.0f, 1.0f);
vertices[6] = Vertex( 1.0f, 1.0f, 1.0f);
vertices[7] = Vertex( 1.0f, -1.0f, 1.0f);
VB->Unlock();
// define the triangles of the cube:
WORD* indices = 0;
IB->Lock(0, 0, (void**)&indices, 0);
// front side
indices[0] = 0; indices[1] = 1; indices[2] = 2;
indices[3] = 0; indices[4] = 2; indices[5] = 3;
// back side
indices[6] = 4; indices[7] = 6; indices[8] = 5;
indices[9] = 4; indices[10] = 7; indices[11] = 6;
// left side
indices[12] = 4; indices[13] = 5; indices[14] = 1;
indices[15] = 4; indices[16] = 1; indices[17] = 0;
// right side
indices[18] = 3; indices[19] = 2; indices[20] = 6;
indices[21] = 3; indices[22] = 6; indices[23] = 7;
// top
indices[24] = 1; indices[25] = 5; indices[26] = 6;
indices[27] = 1; indices[28] = 6; indices[29] = 2;
// bottom
indices[30] = 4; indices[31] = 0; indices[32] = 3;
indices[33] = 4; indices[34] = 3; indices[35] = 7;
IB->Unlock();
//
// Position and aim the camera.
//
D3DXVECTOR3 position(0.0f, 0.0f, -5.0f);
D3DXVECTOR3 target(0.0f, 0.0f, 0.0f);
D3DXVECTOR3 up(0.0f, 1.0f, 0.0f);
D3DXMATRIX V;
D3DXMatrixLookAtLH(&V, &position, &target, &up);
Device->SetTransform(D3DTS_VIEW, &V);
//
// Set the projection matrix.
//
D3DXMATRIX proj;
D3DXMatrixPerspectiveFovLH(
&proj,
D3DX_PI * 0.5f, // 90 - degree
(float)Width / (float)Height,
1.0f,
1000.0f);
Device->SetTransform(D3DTS_PROJECTION, &proj);
//
// Switch to wireframe mode.
//
Device->SetRenderState(D3DRS_FILLMODE, D3DFILL_WIREFRAME);
return true;
}
void Cleanup()
{
d3d::Release<IDirect3DVertexBuffer9*>(VB);
d3d::Release<IDirect3DIndexBuffer9*>(IB);
}
bool Display(float timeDelta)
{
if( Device )
{
//
// spin the cube:
//
D3DXMATRIX Rx, Ry;
// rotate 45 degrees on x-axis
D3DXMatrixRotationX(&Rx, 3.14f / 4.0f);
// incremement y-rotation angle each frame
static float y = 0.0f;
D3DXMatrixRotationY(&Ry, y);
y += timeDelta;
// reset angle to zero when angle reaches 2*PI
if( y >= 6.28f )
y = 0.0f;
// combine x- and y-axis rotation transformations.
D3DXMATRIX p = Rx * Ry;
Device->SetTransform(D3DTS_WORLD, &p);
//
// draw the scene:
//
Device->Clear(0, 0, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, 0xffffffff, 1.0f, 0);
Device->BeginScene();
Device->SetStreamSource(0, VB, 0, sizeof(Vertex));
Device->SetIndices(IB);
Device->SetFVF(Vertex::FVF);
// Draw cube.
Device->DrawIndexedPrimitive(D3DPT_TRIANGLELIST, 0, 0, 8, 0, 12);
Device->EndScene();
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,
Width, Height, true, D3DDEVTYPE_HAL, &Device))
{
::MessageBox(0, "InitD3D() - FAILED", 0, 0);
return 0;
}
if(!Setup())
{
::MessageBox(0, "Setup() - FAILED", 0, 0);
return 0;
}
d3d::EnterMsgLoop( Display );
Cleanup();
Device->Release();
return 0;
}
