Function PyInit

trinity/Resources/TriTextureRes_Blue.cpp:17–73

#if BLUE_WITH_PYTHON
static PyObject* PyInit( PyObject* self, PyObject* args )
{
	TriTextureRes* pThis = BluePythonCast<TriTextureRes*>( self );


	if( PyTuple_Size( args ) >= 4 )
	{
		// Option 1: constructor that makes a new, undefined-contents TriTextureRes of a given
		// size, presumably to use locking or UpdateSubResource later on.
		unsigned width = 0, height = 0, mipCount = 0, format = 0, usage = USAGE_CPU_READ;

		if( !PyArg_ParseTuple( args, "iiii|i", &width, &height, &mipCount, &format, &usage ) )
		{
			PyErr_SetString( PyExc_RuntimeError, "Excpected width, height, mipCount, format, optional usage" );
			return nullptr;
		}

		if( width && height && mipCount && format )
		{
			USE_MAIN_THREAD_RENDER_CONTEXT();
			pThis->Create( width,
						   height,
						   mipCount,
						   static_cast<PixelFormat>( format ),
						   static_cast<BufferUsageFlags>( usage ),
						   renderContext );
		}
		Py_RETURN_NONE;
	}

	if( PyTuple_Size( args ) == 1 )
	{
		// Option 2: a live view of a (readable) renderTarget
		PyObject* pySurface = NULL;

		if( !PyArg_ParseTuple( args, "|O", &pySurface ) )
		{
			PyErr_SetString( PyExc_RuntimeError, "Excpected Tr2RenderTarget" );
			return nullptr;
		}

		if( pySurface )
		{
			Tr2RenderTarget* renderTarget = nullptr;
			if( BluePythonCast<Tr2RenderTarget*>( pySurface ) && BlueExtractArgument( pySurface, renderTarget, 0 ) )
			{
				pThis->SetTextureFromRT( renderTarget );
				Py_RETURN_NONE;
			}
		}
		Py_RETURN_NONE;
	}

	// Option 3: empty constructor, do nothing.

	Py_RETURN_NONE;
}