Question

我有一个2d漫反射纹理加载到内存中，并希望从中创建一个dx11纹理。它不需要改变，所以我把它变成了不可变的。

DX11Texture::DX11Texture(ID3D11Device* device, const std::vector<uint8_t>& textureData, uint32_t textureWidth, uint32_t textureHeight, TextureType textureType, Logger& logger) :
        mTexture(nullptr), mTextureID(gNextTextureID++)
    {
        D3D11_TEXTURE2D_DESC textureDesc;
        ZeroMemory(&textureDesc, sizeof(D3D11_TEXTURE2D_DESC));
        textureDesc.Width = textureWidth;
        textureDesc.Height = textureHeight;
        textureDesc.MipLevels = 1;
        textureDesc.ArraySize = 1;
        textureDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
        textureDesc.SampleDesc.Count = 1;
        textureDesc.Usage = D3D11_USAGE_IMMUTABLE;
        textureDesc.BindFlags = D3D11_BIND_SHADER_RESOURCE;

        D3D11_SUBRESOURCE_DATA initData;
        ZeroMemory(&initData, sizeof(D3D11_SUBRESOURCE_DATA));
        initData.pSysMem = &textureData.at(0);

        DXCALL(device->CreateTexture2D(&textureDesc, &initData, &mTexture));     // throws E_INVALIDARG result
    }

我不明白为什么它会导致CreateTexture2D调用出错。例如，我有一个纹理128x128 R8B8G8A8纹理，它会导致糟糕的结果。有什么想法吗？

Answer 1

您可能还应设置SysMemPitch initData成员的值，如此处msdn: d3d11_subresource_data所述。另请注意，CreateTexture2D需要一个指向D3D11_SUBRESOURCE_DATA数组的指针（每个mip级别一个）。

漫反射纹理CreateTexture2D失败了吗？

1 个答案: