渲染之前記得g_pd3dDevice->SetIndices(g_pIB);
而且要用g_pd3dDevice->DrawIndexedPrimitive來渲染索引緩沖區
??1
#include?
<
D3DX9.h
>
??2
#include?
<
string
>
??3
typedef?std::
string
?String;
??4
#define
?SAFE_RELEASE(o)?{if(o){o->Release();o?=?0;}}
??5
??6
??7
LPDIRECT3D9?g_pD3D?
=
?
0
;????????????????
//
?D3D?Driver
??8
LPDIRECT3DDEVICE9?g_pd3dDevice?
=
?
0
;????
//
?D3D?設備
??9
D3DCAPS9?g_Caps?
=
?
{(D3DDEVTYPE)
0
}
;????
//
?D3D?的帽子
?10
LPDIRECT3DVERTEXBUFFER9?g_pVB?
=
?
0
;????
//
?頂點緩沖區
?11
LPDIRECT3DINDEXBUFFER9?g_pIB?
=
?
0
;????
//
?索引緩沖區
?12
?13
//
?頂點定義
?14
#define
?D3DFVF_CUSTOMVERTEX?(D3DFVF_XYZRHW?|?D3DFVF_DIFFUSE)
?15
struct
?CUSTOMVERTEX
?16
{
?17
 ????D3DXVECTOR4?position;
?18
????D3DCOLOR?color;
?19
 }
;
?20
?21
//
?錯誤記錄
?22
void
?D3DErr(String?strMsg)
?23
{
?24
????MessageBox(
0
?,?strMsg.c_str()?,?
"
錯誤
"
?,?MB_OK);
?25
}
?26
?27
//
?初始化頂點緩沖區
?28
HRESULT?InitVB()
?29
{
?30
????
//
?創建頂點緩沖區
?31
????
if
(FAILED(g_pd3dDevice
->
CreateVertexBuffer(
4
?
*
?
sizeof
(CUSTOMVERTEX)?,?
0
?,?D3DFVF_CUSTOMVERTEX?,?D3DPOOL_DEFAULT?,?
&
g_pVB?,?
0
)))
?32
????????
return
?E_FAIL;
?33
?34
????CUSTOMVERTEX?
*
pVertecies;
?35
????
//
?鎖定緩沖區
?36
????
if
(SUCCEEDED(g_pVB
->
Lock(
0
?,?
4
?
*
?
sizeof
(CUSTOMVERTEX)?,?(
void
**
)
&
pVertecies?,?
0
)))
?37
 ????
{
?38
????????pVertecies[
0
].position?
=
?D3DXVECTOR4(
50
?,?
50
?,?
0.5
?,?
1
);
?39
????????pVertecies[
1
].position?
=
?D3DXVECTOR4(
250
?,?
250
?,?
0.5
?,?
1
);
?40
????????pVertecies[
2
].position?
=
?D3DXVECTOR4(
50
?,?
250
?,?
0.5
?,?
1
);
?41
????????pVertecies[
3
].position?
=
?D3DXVECTOR4(
250
?,?
50
?,?
0.5
?,?
1
);
?42
????????
?43
?44
????????pVertecies[
0
].color?
=
?D3DCOLOR_XRGB(
255
?,?
0
?,?
0
);
?45
????????pVertecies[
1
].color?
=
?D3DCOLOR_XRGB(
0
?,?
255
?,?
0
);
?46
????????pVertecies[
2
].color?
=
?D3DCOLOR_XRGB(
0
?,?
0
?,?
255
);
?47
????????pVertecies[
3
].color?
=
?D3DCOLOR_XRGB(
255
?,?
255
?,?
255
);
?48
?49
????????g_pVB
->
Unlock();
?50
 ????}
?51
????
else
?52
????
{
?53
????????
return
?E_FAIL;
?54
????}
?55
????
return
?S_OK;
?56
}
?57
?58
?59
//
?初始化索引緩沖區
?60
HRESULT?InitIB()
?61
{
?62
????
//
?創建頂點緩沖區
?63
????
if
(FAILED(g_pd3dDevice
->
CreateIndexBuffer(
6
?
*
?
sizeof
(WORD)?,?
0
?,?D3DFMT_INDEX16?,?D3DPOOL_DEFAULT?,?
&
g_pIB?,?
0
)))
?64
????????
return
?E_FAIL;
?65
?66
????WORD?
*
pIndices;
?67
????
//
?鎖定緩沖區
?68
????
if
(SUCCEEDED(g_pIB
->
Lock(
0
?,?
6
?
*
?
sizeof
(WORD)?,?(
void
**
)
&
pIndices?,?
0
)))
?69
????
{
?70
????????pIndices[
0
]?
=
?
0
;
?71
????????pIndices[
1
]?
=
?
1
;
?72
????????pIndices[
2
]?
=
?
2
;
?73
????????pIndices[
3
]?
=
?
0
;
?74
????????pIndices[
4
]?
=
?
3
;
?75
????????pIndices[
5
]?
=
?
1
;
?76
????????g_pIB
->
Unlock();
?77
????}
?78
????
else
?79
????
{
?80
????????
return
?E_FAIL;
?81
????}
?82
????
return
?S_OK;
?83
}
?84
?85
//
?渲染場景
?86
void
?Render()
?87
{
?88
????
if
(g_pd3dDevice)
?89
????
{
?90
????????
//
?清空場景
?91
????????g_pd3dDevice
->
Clear(
0
?,?
0
?,?D3DCLEAR_TARGET?,?D3DCOLOR_XRGB(
0
?,?
0
?,?
255
)?,?
1
?,?
0
);
?92
????????
//
?開始渲染
?93
????????
if
(SUCCEEDED(g_pd3dDevice
->
BeginScene()))
?94
????????
{
?95
????????????g_pd3dDevice
->
SetStreamSource(
0
?,?g_pVB?,?
0
?,?
sizeof
(CUSTOMVERTEX));
?96
????????????g_pd3dDevice
->
SetIndices(g_pIB);
?97
????????????g_pd3dDevice
->
SetFVF(D3DFVF_CUSTOMVERTEX);
?98
????????????g_pd3dDevice
->
DrawIndexedPrimitive(D3DPT_TRIANGLELIST?,?
0
?,?
0
?,?
4
?,?
0
?,?
2
);
?99
????????????g_pd3dDevice
->
EndScene();
100
????????}
101
????????
//
?顯示
102
????????g_pd3dDevice
->
Present(
0
?,?
0
?,?
0
?,?
0
);
103
????}
104
}
105
106
//
?初始化?D3D?設備
107
HRESULT?InitD3D(HWND?hWnd)
108
{
109
????
//
?創建?D3D?Driver
110
????
if
(NULL?
==
?(g_pD3D?
=
?Direct3DCreate9(D3D_SDK_VERSION)))
111
????
{
112
????????D3DErr(
"
無法創建Direct3D9設備
"
);
113
????????
return
?E_FAIL;
114
????}
115
????
//
?獲取當前顯示模式
116
????D3DDISPLAYMODE?d3ddm;
117
????
if
(FAILED(g_pD3D
->
GetAdapterDisplayMode(D3DADAPTER_DEFAULT?,?
&
d3ddm)))
118
????
{
119
????????D3DErr(
"
無法獲取D3D顯示器模式
"
);
120
????????
return
?E_FAIL;
121
????}
122
123
????
//
?獲取窗口的大小
124
????RECT?rect;
125
????GetClientRect(hWnd?,?
&
rect);
126
127
????
//
?填充參數
128
????D3DPRESENT_PARAMETERS?d3dpp;
129
????memset(
&
d3dpp?,?
0
?,?
sizeof
(d3dpp));
130
????d3dpp.BackBufferFormat?
=
?d3ddm.Format;
131
????d3dpp.BackBufferWidth?
=
?rect.right?
-
?rect.left;
132
????d3dpp.BackBufferHeight?
=
?rect.bottom?
-
?rect.top;
133
????d3dpp.SwapEffect?
=
?D3DSWAPEFFECT_DISCARD;
134
????d3dpp.Windowed?
=
?
true
;
135
136
????
//
?獲取帽子
137
????
if
(FAILED(g_pD3D
->
GetDeviceCaps(D3DADAPTER_DEFAULT?,?D3DDEVTYPE_HAL?,?
&
g_Caps)))
138
????
{
139
????????D3DErr(
"
獲取D3D?帽子時發生錯誤
"
);
140
????????
return
?E_FAIL;
141
????}
142
143
????
//
?創建D3D設備
144
????
if
(FAILED(g_pD3D
->
CreateDevice(D3DADAPTER_DEFAULT
145
????????,?D3DDEVTYPE_HAL
146
????????,?hWnd
147
????????
//
?檢查是否支持硬件頂點處理
148
????????,?g_Caps.DevCaps?
&
?D3DDEVCAPS_HWTRANSFORMANDLIGHT?
?
?D3DCREATE_HARDWARE_VERTEXPROCESSING?:?D3DCREATE_SOFTWARE_VERTEXPROCESSING
149
????????,?
&
d3dpp
150
????????,?
&
g_pd3dDevice
151
????????)
152
????????))
153
????
{
154
????????D3DErr(
"
創建D3D設備時發生錯誤
"
);
155
????????
return
?E_FAIL;
156
????}
157
158
????
//
?創建頂點緩沖區
159
????
if
(FAILED(InitVB()))
160
????????
return
?E_FAIL;
161
????
//
?創建索引緩沖區
162
????
if
(FAILED(InitIB()))
163
????????
return
?E_FAIL;
164
????
return
?S_OK;
165
}
166
167
//
?清空所有占用的資源
168
void
?CleanUp()
169
{
170
????SAFE_RELEASE(g_pIB);
171
????SAFE_RELEASE(g_pVB);
172
????SAFE_RELEASE(g_pd3dDevice);
173
????SAFE_RELEASE(g_pD3D);
174
}
175
176
177
//
?消息處理
178
LRESULT?WINAPI?MsgProc(HWND?hWnd?,?UINT?message?,?WPARAM?wParam?,?LPARAM?lParam)
179
{
180
????
switch
(message)
181
????
{
182
????
case
?WM_DESTROY:
183
????????CleanUp();
184
????????PostQuitMessage(
0
);
185
????????
break
;
186
????}
187
????
return
?::DefWindowProc(hWnd,?message?,?wParam?,?lParam);
188
}
189
190
//
?Windows?入口
191
int
?WINAPI?WinMain(IN?HINSTANCE?hInstance,?IN?HINSTANCE?hPrevInstance,?IN?LPSTR?lpCmdLine,?IN?
int
?nShowCmd?)
192
{
193
????WNDCLASS?wndClass;
194
????memset(
&
wndClass?,?
0
?,?
sizeof
(wndClass));
195
????wndClass.hInstance?
=
?hInstance;
196
????wndClass.lpszClassName?
=
?
"
Tutorial02
"
;
197
????wndClass.lpfnWndProc?
=
?MsgProc;
198
????RegisterClass(
&
wndClass);
199
200
????
//
?創建窗口
201
????HWND?hWnd?
=
?CreateWindow(
"
Tutorial02
"
?,?
"
Tutorial02?Index?Buffer
"
?
202
????????,?WS_OVERLAPPEDWINDOW?,?
0
?,?
0
?,?
512
?,
512
?,?GetDesktopWindow()
203
????????,?
0
?,?wndClass.hInstance?,?
0
);
204
????
//
?顯示窗口
205
????ShowWindow(hWnd?,?SW_SHOWDEFAULT);
206
????UpdateWindow(hWnd);
207
208
????
//
?初始化?D3D?設備
209
????
if
(SUCCEEDED(InitD3D(hWnd)))
210
????
{
211
????????
//
?消息處理循環
212
????????MSG?msg;
213
????????memset(
&
msg?,?
0
?,?
sizeof
(msg));
214
????????
while
(msg.message?
!=
?WM_QUIT)
215
????????
{
216
????????????
if
(PeekMessage(
&
msg?,?
0
?,?
0
?,?
0
?,?PM_REMOVE))
217
????????????
{
218
????????????????TranslateMessage(
&
msg);
219
????????????????DispatchMessage(
&
msg);
220
????????????}
221
????????????
else
222
????????????
{
223
????????????????Render();
224
????????????}
225
????????}
226
????}
227
????
//
?清空場景
228
????CleanUp();
229
230
????UnregisterClass(
"
Tutorial02
"
?,?wndClass.hInstance);
231
232
????
return
?
0
;
233
}
|