DirectX9 CreateDevice失败，出现D3DERR_NOTAVAILABLE

问题描述

dx9设备有初始化代码

  D3DDISPLAYMODE显示； 
 m_pD3D-> GetAdapterDisplayMode（D3DADAPTER_DEFAULT，& display）; 
 
 ZeroMemory（& m_d3dpp，sizeof（m_d3dpp））; 
 m_d3dpp.Windowed = false; 
 m_d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD; 
 m_d3dpp.BackBufferFormat = display.Format; 
 m_d3dpp.EnableAutoDepthStencil = false; 
 m_d3dpp.MultiSampleType = D3DMULTISAMPLE_NONE; 
 / * BackBufferHeight和BackBufferWidth也从其他位置设置* / 
 DWORD标志= D3DCREATE_FPU_PRESERVE | D3DCREATE_MULTITHREADED; 
 m_pD3D-> CreateDevice（D3DADAPTER_DEFAULT，m_Devtype，hWnd，标志，& m_d3dpp，& m_pd3dDevice）
  

事实是，这对m_Devtype = D3DDEVTYPE_HAL和m_Devtype = D3DDEVTYPE_REF都适用。

但是在某些特定计算机（winXP，sp3，最后安装的dx）上）CreateDevice对于D3DDEVTYPE_HAL返回D3DERR_INVALIDCALL，对于D3DDEVTYPE_REF返回D3DERR_NOTAVAILABLE。 m_pD3D 和 display 均有效。 display 结构的格式字段中包含rgb565。

似乎很重要： DX Caps Viewer未显示任何硬件适配器

看起来每个参数在CreateDevice中都正确，我希望它必须为引用设备返回D3D_OK，为什么不呢？

>

UPD1：现在我知道，这种不幸的XP在某些虚拟机上运行。我猜这就是为什么只有一个软件适配器的原因。

解决方案

您没有在CreateDevice函数中指定任何顶点处理方法。尝试将其设置为D3DCREATE_SOFTWARE_VERTEXPROCESSING，则必须设置一种顶点处理方法，这是DirectX SDK文档中的必填项。 ，
和D3DCREATE_SOFTWARE_VERTEXPROCESSING是互斥标志。
在
调用CreateDevice时，必须至少指定这些顶点处理标志之一。

There is initializing code for dx9 device

D3DDISPLAYMODE display;
m_pD3D->GetAdapterDisplayMode(D3DADAPTER_DEFAULT, &display);

ZeroMemory(&m_d3dpp, sizeof(m_d3dpp));
m_d3dpp.Windowed = false;
m_d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
m_d3dpp.BackBufferFormat = display.Format;
m_d3dpp.EnableAutoDepthStencil = false;
m_d3dpp.MultiSampleType = D3DMULTISAMPLE_NONE;
/*BackBufferHeight and BackBufferWidth also set from elsewhere*/
DWORD flags = D3DCREATE_FPU_PRESERVE|D3DCREATE_MULTITHREADED;
m_pD3D->CreateDevice(D3DADAPTER_DEFAULT, m_Devtype, hWnd, flags, &m_d3dpp, &m_pd3dDevice)

The fact is that this works well with both m_Devtype = D3DDEVTYPE_HAL and m_Devtype = D3DDEVTYPE_REF.

But on some particular computer (winXP, sp3, last dx installed) CreateDevice returns D3DERR_INVALIDCALL for D3DDEVTYPE_HAL and D3DERR_NOTAVAILABLE for D3DDEVTYPE_REF. m_pD3D and display are both valid. display struct has rgb565 in format field.

Seems to be important: "DX Caps Viewer" shows no hardware adapters and only one software, with format rgb565.

Looks like every parameter is right in CreateDevice and i expect that it must return D3D_OK for reference device, why not?

UPD1: Now i know, that this unlucky XP runs on some virtual machine. That's why there is just one software adapter, i guess.

解决方案

You didn't specify any vertex processing method in CreateDevice function. try set it as D3DCREATE_SOFTWARE_VERTEXPROCESSING, you must set one of the vertex process method, this is mandatory accroding to DirectX SDK document.

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