Error compiling 4.1.0 source code with mingw-w64: 'D3D11_TEXTURE2D_DESC' was not declared in this scope

[huihut]

System information (version)

• OpenCV => 4.1.0
• Operating System / Platform => Windows 10 64bit
• Compiler => mingw-w64 8.1.0-posix-seh-rt_v6-rev0

Detailed description

When I compiled the 4.1.0 version with mingw-w64, there was an error

E:\opencv-4.1.0\opencv-4.1.0\modules\core\src\directx.cpp:1035:5: error: 'D3D11_TEXTURE2D_DESC' was not declared in this scope
     D3D11_TEXTURE2D_DESC desc = { 0 };
     ^~~~~~~~~~~~~~~~~~~~

I can solve it like this

cmake -DWITH_OPENCL_D3D11_NV=OFF

But I don't know if this is the right solution, and whether this will affect the compiled dll.

[Mainvooid]

D3D11_TEXTURE2D_DESC is declared in d3d11.h. If you don't need interoperability between D3D11 and OpenCL, you can turn off compile options, as you did.

[alalek]

Need to ensure that HAVE_OPENCL_D3D11_NV become disabled if HAVE_DIRECTX=OFF.

Main problem here is that DirectX checks are performed after OpenCL checks.

[huihut]

OK, I configured

• WITH_OPENCL=ON
• WITH_OPENCL_D3D11_NV=OFF
• WITH_DIRECTX=ON

It can be successfully compiled.

If there is no problem, I close this issue.

[alalek]

@huihut Could you check this patch: #14294 ? (with default CMake parameters)

[huihut]

@alalek Well, this can be successfully compiled without modifying the default WITH_OPENCL_D3D11_NV.