问题描述
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我对这种结构还很陌生，而我从中学习的书对我来说却很不直观。我对代码进行了三遍检查，但是我无法弄清为什么无法弹出图像。背景为白色，并且HUD在其中，但不会显示多维数据集。当我尝试用彩色使它相同时。
#include <windows.h>
#include <windowsx.h>
#include <d3d9.h>
#include <d3dx9.h>
#include <d3dx9core.h>
#pragma comment (lib,\"d3d9.lib\")
#pragma comment (lib,\"d3dx9.lib\")
LPDIRECT3D9 d3d;
LPDIRECT3DDEVICE9 d3ddev;
//LPDIRECT3DTEXTURE9 quadTexture;
LPD3DXFONT m_font;
D3DCOLOR fontColor;
LPDIRECT3DVERTEXBUFFER9 v_buffer = NULL;
LPDIRECT3DINDEXBUFFER9 i_buffer = NULL;
struct ColorVertex{
D3DXVECTOR3 pos;
ColorVertex(FLOAT X,FLOAT Y,FLOAT Z):pos(X,Y,Z){}
static IDirect3DVertexDeclaration9* Decl;
};
IDirect3DVertexDeclaration9* ColorVertex::Decl = 0;
void initD3D(HWND hWnd);
void render_frame(void);
void cleanD3D(void);
void setVertices(void);
LRESULT CALLBACK WindowProc(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam);
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow){
#define SCREEN_WIDTH GetSystemMetrics(SM_CXSCREEN)
#define SCREEN_HEIGHT GetSystemMetrics(SM_CYSCREEN)
HWND hWnd;
WNDCLASSEX wc;
ZeroMemory(&wc,sizeof(WNDCLASSEX));
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = WindowProc;
wc.hInstance = hInstance;
wc.hCursor = LoadCursor(NULL,IDC_ARROW);
wc.lpszClassName = L\"WindowClass\";
RegisterClassEx(&wc);
hWnd = CreateWindowEx(NULL,L\"WindowClass\",L\"v2\",WS_EX_TOPMOST | WS_POPUP,SCREEN_WIDTH,SCREEN_HEIGHT,NULL,hInstance,NULL);
ShowWindow(hWnd,nCmdShow);
initD3D(hWnd);
setVertices();
D3DXCreateFont( d3ddev,20,FW_BOLD,FALSE,DEFAULT_CHARSET,OUT_DEFAULT_PRECIS,DEFAULT_QUALITY,DEFAULT_PITCH | FF_DONTCARE,TEXT(\"Arial\"),&m_font );
D3DVERTEXELEMENT9 Elements[] = {
{0,D3DDECLTYPE_FLOAT3,D3DDECLMETHOD_DEFAULT,D3DDECLUSAGE_POSITION,0},D3DDECL_END()
};
d3ddev->CreateVertexDeclaration(Elements,&ColorVertex::Decl);
MSG msg;
while(TRUE){
while(PeekMessage(&msg,PM_REMOVE)){
TranslateMessage(&msg);
DispatchMessage(&msg);
}
if(msg.message == WM_QUIT) break;
render_frame();
}
cleanD3D();
return msg.wParam;
}
LRESULT CALLBACK WindowProc(HWND hWnd,LPARAM lParam){
switch(message){
case WM_DESTROY:{
PostQuitMessage(0);
return 0;
}break;
}
return DefWindowProc (hWnd,message,wParam,lParam);
}
void initD3D(HWND hWnd){
d3d = Direct3DCreate9(D3D_SDK_VERSION);
D3DPRESENT_PARAMETERS d3dpp;
ZeroMemory(&d3dpp,sizeof(d3dpp));
d3dpp.Windowed = FALSE;
d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
d3dpp.hDeviceWindow = hWnd;
d3dpp.BackBufferFormat = D3DFMT_X8R8G8B8;
d3dpp.BackBufferWidth = SCREEN_WIDTH;
d3dpp.BackBufferHeight = SCREEN_HEIGHT;
d3d->CreateDevice(D3DADAPTER_DEFAULT,D3DDEVTYPE_HAL,hWnd,D3DCREATE_SOFTWARE_VERTEXPROCESSING,&d3dpp,&d3ddev);
d3ddev->SetRenderState(D3DRS_ZENABLE,TRUE);
d3ddev->SetRenderState(D3DRS_CULLMODE,D3DCULL_NONE);
d3ddev->SetRenderState(D3DRS_FILLMODE,D3DFILL_WIREFRAME);
}
void setVertices(void){
d3ddev->CreateVertexBuffer(8*sizeof(ColorVertex),D3DPOOL_MANAGED,&v_buffer,NULL);
ColorVertex* cube = 0;
v_buffer->Lock(0,(void**)&cube,0);
cube[0] = ColorVertex(-1.0f,-1.0f,-1.0f);
cube[1] = ColorVertex(-1.0f,1.0f,-1.0f);
cube[2] = ColorVertex( 1.0f,-1.0f);
cube[3] = ColorVertex( 1.0f,-1.0f);
cube[4] = ColorVertex(-1.0f,1.0f);
cube[5] = ColorVertex(-1.0f,1.0f);
cube[6] = ColorVertex( 1.0f,1.0f);
cube[7] = ColorVertex( 1.0f,1.0f);
v_buffer->Unlock();
d3ddev->CreateIndexBuffer(12*3*sizeof(WORD),D3DFMT_INDEX16,&i_buffer,NULL);
WORD* k = 0;
i_buffer->Lock(0,(void**)&k,0);
k[0] = 0; k[1] = 1; k[2] = 2;
k[3] = 0; k[4] = 2; k[5] = 3;
// Back face.
k[6] = 4; k[7] = 6; k[8] = 5;
k[9] = 4; k[10] = 7; k[11] = 6;
// Left face.
k[12] = 4; k[13] = 5; k[14] = 1;
k[15] = 4; k[16] = 1; k[17] = 0;
// Right face.
k[18] = 3; k[19] = 2; k[20] = 6;
k[21] = 3; k[22] = 6; k[23] = 7;
// Top face.
k[24] = 1; k[25] = 5; k[26] = 6;
k[27] = 1; k[28] = 6; k[29] = 2;
// Bottom face.
k[30] = 4; k[31] = 0; k[32] = 3;
k[33] = 4; k[34] = 3; k[35] = 7;
i_buffer->Unlock();
}
void render_frame(void){
d3ddev->Clear(0,D3DCLEAR_TARGET,D3DCOLOR_XRGB(255,255,255),0);
d3ddev->BeginScene();
d3ddev->SetStreamSource(0,v_buffer,sizeof(ColorVertex));
d3ddev->SetIndices(i_buffer);
D3DXMATRIX matView;
D3DXMatrixLookAtLH(&matView,&D3DXVECTOR3 (0.0f,5.0f,-5.0f),// the camera position
&D3DXVECTOR3 (0.0f,0.0f,0.0f),// the look-at position
&D3DXVECTOR3 (0.0f,0.0f));// the up direction
d3ddev->SetTransform(D3DTS_VIEW,&matView);
D3DXMATRIX matProjection;
D3DXMatrixPerspectiveFovLH(&matProjection,D3DXToRadian(90),(FLOAT)SCREEN_WIDTH / (FLOAT)SCREEN_HEIGHT,// the near view-plane
5000.0f);// the far view-plane
d3ddev->SetVertexDeclaration(ColorVertex::Decl);
d3ddev->DrawIndexedPrimitive(D3DPT_TRIANGLELIST,8,12);
fontColor = D3DCOLOR_ARGB(255,255);
RECT rct;
rct.left=10;
rct.right=SCREEN_WIDTH-10;
rct.top=10;
rct.bottom=rct.top+20;
//WCHAR lookAtPos [32000];
//swprintf_s(lookAtPos,32000,L\"X=%f,Z=%f,Y=%f\",camDirX,camDirZ,camDirY);
m_font->DrawText(NULL,L\"Hello World\",-1,&rct,fontColor );
d3ddev->EndScene();
d3ddev->Present(NULL,NULL);
}
void cleanD3D(void){
d3ddev->Release();
d3d->Release();
i_buffer->Release();
v_buffer->Release();
ColorVertex::Decl->Release();
}
解决方法
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