Direct3D DrawIndexedPrimitive失败

姚小白 2016-08-20 10:06:38

想在一个Dll中调用Direct3D,代码如下：

初始化：



if(m_D3D == NULL)

	{

		m_D3D.Attach(Direct3DCreate9(D3D9b_SDK_VERSION));

	}



	WNDCLASSEX wc={sizeof(WNDCLASSEX),CS_CLASSDC,MsgProc,0,0,GetModuleHandle(NULL),NULL,NULL,NULL,NULL,L"D3D",NULL};  

	RegisterClassEx(&wc);  

	m_window = CreateWindowA("D3D","sphere turtorial",WS_OVERLAPPEDWINDOW,100,100,400,400,GetDesktopWindow(),NULL,wc.hInstance,NULL);



	if( m_D3DDev == NULL )

	{

		 CreateDevice();

	}



	InitD3D(m_D3DDev);

CreateDevice()



HRESULT hr;

	m_D3DDev = NULL;

	D3DDISPLAYMODE dm;



	hr = m_D3D->GetAdapterDisplayMode( D3DADAPTER_DEFAULT, &dm);

	

	ZeroMemory(&pp, sizeof(pp));

	pp.Windowed = TRUE;

	pp.hDeviceWindow = m_window;

	pp.SwapEffect = D3DSWAPEFFECT_COPY;

	pp.BackBufferFormat = dm.Format;



	FAIL_RET( m_D3D->CreateDevice(  D3DADAPTER_DEFAULT,

		D3DDEVTYPE_HAL,

		m_window,

		D3DCREATE_SOFTWARE_VERTEXPROCESSING | 

		D3DCREATE_MULTITHREADED,

		&pp,

		&m_D3DDev) );



	m_renderTarget = NULL; 

	return m_D3DDev->GetRenderTarget( 0, & m_renderTarget );

Init3D（）由于篇幅太长，不复制了，就是建立了一个顶点缓存和索引缓存，用来画球体。这在另外一个MFC程序中都是正确的。但是在这个DLL中，我获取到纹理资源后（纹理是正确的）：



	FAIL_RET( m_D3DDev->SetTexture( 0, pRenderTexture));

	FAIL_RET(hr = m_D3DDev->SetTextureStageState(0, D3DTSS_ALPHAOP, D3DTOP_MODULATE));

	FAIL_RET(hr = m_D3DDev->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE));

	FAIL_RET(hr = m_D3DDev->SetTextureStageState(0, D3DTSS_ALPHAARG2, D3DTA_DIFFUSE));

	FAIL_RET(hr = m_D3DDev->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE));



	FAIL_RET( m_D3DDev->SetStreamSource(0, g_pVB, 0, sizeof(CUSTOMVERTEXSPHERE)  ) );            //set next source ( NEW )

	FAIL_RET( m_D3DDev->SetFVF( D3DFVF_CUSTOM ) );

	FAIL_RET( m_D3DDev->SetIndices(g_pIB));  

	

	FAIL_RET(hr = m_D3DDev->DrawIndexedPrimitive(D3DPT_TRIANGLESTRIP,0,0,(g_segments+1)*(1+g_rings),0,2*(g_segments)*g_rings+g_segments-2+g_rings));

	FAIL_RET( m_D3DDev->SetTexture( 0, NULL));



	FAIL_RET( m_D3DDev->EndScene());

在DrawIndexedPrimitive时程序崩溃，显示：
0x07FDB3D5 (igdumdim32.dll) (graphstudionext.exe 中)处有未经处理的异常: 0xC0000005: 读取位置 0x00000028 时发生访问冲突。

是否和初始化IDirect3DDevice9时的窗口有关？因为和MFC对比也就窗口不一样了，MFC中使用的是PictureControl的句柄。其他流程都一样

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