can not create share texture in unigine?

[shichao]

i want to use share texture with a mutex lock,

so i use the device created in unigine,

and create a texture with MiscFlags is D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX.

so it return E_INVALIDARG.

but i use D3D11_RESOURCE_MISC_SHARED is ok.

and i found in the \engine\framework\direct3d11\D3D11RenderContext.cpp .

the device is created after this functions called

CreateDXGIFactory  ->  DXGIFactory->EnumAdapters  -> D3D11CreateDevice .

use this device to create a D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX texture is also return E_INVALIDARG.

how should i do to create this texture in unigine?

	IDXGIFactory * DXGIFactory;
	IDXGIAdapter * Adapter;
	if ((CreateDXGIFactory(__uuidof(IDXGIFactory), (void**)(&DXGIFactory))))
		return 0;
	if ((DXGIFactory->EnumAdapters(0, &Adapter)))
		return 0;
	if ((D3D11CreateDevice(Adapter, Adapter ? D3D_DRIVER_TYPE_UNKNOWN : D3D_DRIVER_TYPE_HARDWARE,
		NULL, 0, NULL, 0, D3D11_SDK_VERSION, &g_pd3dDevice, NULL, &g_pImmediateContext)))
		return 0;

	ID3D11Texture2D* pd3d11Texture2DShared = nullptr;
	HRESULT hhh;
	ID3D11Device* pd3d11Device = g_pd3dDevice;
	D3D11_TEXTURE2D_DESC sharedTextureDesc;
	ZeroMemory(&sharedTextureDesc, sizeof(sharedTextureDesc));
	sharedTextureDesc.Width = 1920;
	sharedTextureDesc.Height = 1080;
	sharedTextureDesc.MipLevels = 1;
	sharedTextureDesc.ArraySize = 1;
	sharedTextureDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
	sharedTextureDesc.SampleDesc.Count = 1;
	sharedTextureDesc.Usage = D3D11_USAGE_DEFAULT;
	sharedTextureDesc.BindFlags = D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET;
	sharedTextureDesc.MiscFlags = D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX;
	hhh = pd3d11Device->CreateTexture2D(&sharedTextureDesc, NULL, &pd3d11Texture2DShared);

 

 

[silent]

shichao

It seems that's D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX is fully supported under Windows 8+ and DirectX 11.1. We do support only DirectX 11.0 features due to compatibility issues (and especially between DX / GL methods).

Right now you can try to use Texture::fromD3D11Texture2D() method to convert such texture to the engine internal format (for example, if you need to use this texture in shader).

Thanks!

[shichao]

Thanks!