DirectX 12 wrapper classes to simplify.

wrapper_classes.h

class CSampler : public D3D12_STATIC_SAMPLER_DESC
{
public:
	CSampler(int shaderRegister, D3D12_FILTER samplerFilter, D3D12_TEXTURE_ADDRESS_MODE wrap)
	{
		Filter = samplerFilter;
		AddressU = wrap;
		AddressV = wrap;
		AddressW = D3D12_TEXTURE_ADDRESS_MODE_CLAMP;
		MipLODBias = 0;
		MaxAnisotropy = 1;
		ComparisonFunc = D3D12_COMPARISON_FUNC_NEVER;
		BorderColor = D3D12_STATIC_BORDER_COLOR_TRANSPARENT_BLACK;
		MinLOD = 0;
		MaxLOD = D3D12_FLOAT32_MAX;
		ShaderRegister = shaderRegister;
		RegisterSpace = 0;
		ShaderVisibility = D3D12_SHADER_VISIBILITY_PIXEL;
	}
};

class CDescriptorCBV : public D3D12_DESCRIPTOR_RANGE {
public:
	CDescriptorCBV(int shaderRegister) {
		RangeType = D3D12_DESCRIPTOR_RANGE_TYPE_CBV;
		NumDescriptors = 1;
		BaseShaderRegister = shaderRegister;
		RegisterSpace = 0;
		OffsetInDescriptorsFromTableStart = D3D12_DESCRIPTOR_RANGE_OFFSET_APPEND;
	}
};

class CDescriptorSRV : public D3D12_DESCRIPTOR_RANGE {
public:
	CDescriptorSRV(int shaderRegister) {
		RangeType = D3D12_DESCRIPTOR_RANGE_TYPE_SRV;
		NumDescriptors = 1;
		BaseShaderRegister = shaderRegister;
		RegisterSpace = 0;
		OffsetInDescriptorsFromTableStart = D3D12_DESCRIPTOR_RANGE_OFFSET_APPEND;
	}
};