added the ability to sample texture 2d array in compute shader on d3d11 (#1520)

src/renderer_d3d11.cpp

@@ -3036,12 +3036,26 @@ namespace bgfx { namespace d3d11
 				switch (texture.m_type)
 				{
 				case TextureD3D11::Texture2D:
-					desc.ViewDimension = msaaSample
-						? D3D11_SRV_DIMENSION_TEXTURE2DMS
-						: D3D11_SRV_DIMENSION_TEXTURE2D
-						;
-					desc.Texture2D.MostDetailedMip = _mip;
-					desc.Texture2D.MipLevels       = 1;
+					if (1 < texture.m_depth)
+					{
+						desc.ViewDimension = msaaSample
+							? D3D11_SRV_DIMENSION_TEXTURE2DMSARRAY
+							: D3D11_SRV_DIMENSION_TEXTURE2DARRAY
+							;
+						desc.Texture2DArray.MostDetailedMip = _mip;
+						desc.Texture2DArray.MipLevels = 1;
+						desc.Texture2DArray.FirstArraySlice = 0;
+						desc.Texture2DArray.ArraySize = texture.m_depth;
+					}
+					else
+					{
+						desc.ViewDimension = msaaSample
+							? D3D11_SRV_DIMENSION_TEXTURE2DMS
+							: D3D11_SRV_DIMENSION_TEXTURE2D
+							;
+						desc.Texture2D.MostDetailedMip = _mip;
+						desc.Texture2D.MipLevels = 1;
+					}
 					break;
 
 				case TextureD3D11::TextureCube: