IndexBuffer::IndexBuffer(const ObjectFactory& factory, const void* data, size_t byteCount)
{
if (byteCount!=0) {
D3D11_BUFFER_DESC desc;
desc.ByteWidth = (UINT)byteCount;
desc.Usage = D3D11_USAGE_IMMUTABLE;
desc.BindFlags = D3D11_BIND_INDEX_BUFFER;
desc.CPUAccessFlags = 0;
desc.MiscFlags = 0;
desc.StructureByteStride = 0;
D3D11_SUBRESOURCE_DATA subresData;
subresData.pSysMem = data;
subresData.SysMemPitch = subresData.SysMemSlicePitch = 0;
_underlying = factory.CreateBuffer(&desc, &subresData);
}
}
ConstantBuffer::ConstantBuffer(
const ObjectFactory& factory,
const void* data, size_t byteCount, bool immutable)
{
if (byteCount!=0) {
D3D11_BUFFER_DESC desc;
desc.ByteWidth = (UINT)byteCount;
if (data && immutable) {
desc.Usage = D3D11_USAGE_IMMUTABLE;
desc.CPUAccessFlags = 0;
} else {
desc.Usage = D3D11_USAGE_DYNAMIC;
desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
}
desc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
desc.MiscFlags = 0;
desc.StructureByteStride = 0;
D3D11_SUBRESOURCE_DATA subresData;
subresData.pSysMem = data;
subresData.SysMemPitch = subresData.SysMemSlicePitch = 0;
_underlying = factory.CreateBuffer(&desc, data?(&subresData):nullptr);
}
}