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Grigou

DX11 Create texture array problem

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Hello,

 

I am working on a C++ application using DirectX 11.

I'm trying to create a texture array but I can't get the CreateTexture2D() function to work.

 

First i'm loading multiple PNG files using :

D3DX11_IMAGE_LOAD_INFO loadInfo;
ZeroMemory(&loadInfo, sizeof(loadInfo));
loadInfo.Width  = D3DX11_FROM_FILE;
loadInfo.Height = D3DX11_FROM_FILE;
loadInfo.Depth  = D3DX11_FROM_FILE;
loadInfo.FirstMipLevel = 0;
loadInfo.MipLevels = D3DX11_FROM_FILE;
loadInfo.Usage = D3D11_USAGE_STAGING;
loadInfo.BindFlags = 0;
loadInfo.CpuAccessFlags = D3D11_CPU_ACCESS_WRITE | D3D11_CPU_ACCESS_READ;
loadInfo.MiscFlags = 0;
loadInfo.Format = DXGI_FORMAT_FROM_FILE;
loadInfo.Filter = D3DX11_FILTER_NONE;
loadInfo.MipFilter = D3DX11_FILTER_LINEAR;
loadInfo.pSrcInfo  = 0;

HRESULT hrat = D3DX11CreateTextureFromFileA(_pDevice, _fileName.c_str(), &loadInfo, NULL, reinterpret_cast<ID3D11Resource **>(&_pArrayTex), NULL);

It works just fine.

Then I put all those textures in a vector and pass it to a function to create the texture array using :

D3D11_TEXTURE2D_DESC texDesc;
ID3D11Texture2D * pTex = texList[0];
pTex->GetDesc(&texDesc);

D3D11_TEXTURE2D_DESC texArrayDesc;
ZeroMemory(&texArrayDesc, sizeof(texArrayDesc));
texArrayDesc.Width              = texDesc.Width;
texArrayDesc.Height             = texDesc.Height;
texArrayDesc.MipLevels          = texDesc.MipLevels;
texArrayDesc.ArraySize          = texList.size();
texArrayDesc.Format             = texDesc.Format;
texArrayDesc.SampleDesc.Count   = 1;
texArrayDesc.SampleDesc.Quality = 0;
texArrayDesc.Usage              = D3D11_USAGE_DEFAULT;
texArrayDesc.BindFlags          = D3D11_BIND_SHADER_RESOURCE;
texArrayDesc.CPUAccessFlags     = 0;
texArrayDesc.MiscFlags          = 0;

ID3D11Texture2D * texArray = NULL;
HRESULT hrct = _pDevice->CreateTexture2D(&texArrayDesc, NULL, &texArray);

And this is where it goes wrong, when I try to run my App, I get :

 

Exception non gérée à 0x000ea133 dans CoreEngine.exe : 0xC0000005: Violation d'accès lors de la lecture de l'emplacement 0x00000000.

 

It seems like the function is trying to read from pInitialData, but I don't understand why.

I just want to create an empty texture array, the resource will be written later using UpdateSubresource().

 

Any advice would be nice!

 

Thanks.

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