// Migrate state data for all devices from a previous set of buffers to the current set of buffers.
// Copies all state from their old locations to their new locations and bakes the new offsets into
// the control hierarchies of the given devices.
// NOTE: oldDeviceIndices is only required if devices have been removed; otherwise it can be null.
public void MigrateAll(InputDevice[] devices, uint[] newStateBlockOffsets, InputStateBuffers oldBuffers, int[] oldDeviceIndices)
{
// If we have old data, perform migration.
// Note that the enabled update types don't need to match between the old set of buffers
// and the new set of buffers.
if (oldBuffers.totalSize > 0)
{
MigrateDoubleBuffer(m_DynamicUpdateBuffers, devices, newStateBlockOffsets, oldBuffers.m_DynamicUpdateBuffers,
oldDeviceIndices);
MigrateDoubleBuffer(m_FixedUpdateBuffers, devices, newStateBlockOffsets, oldBuffers.m_FixedUpdateBuffers,
oldDeviceIndices);
#if UNITY_EDITOR
MigrateDoubleBuffer(m_EditorUpdateBuffers, devices, newStateBlockOffsets, oldBuffers.m_EditorUpdateBuffers,
oldDeviceIndices);
#endif
MigrateSingleBuffer(defaultStateBuffer, devices, newStateBlockOffsets, oldBuffers.defaultStateBuffer);
MigrateSingleBuffer(noiseBitmaskBuffer, devices, newStateBlockOffsets, oldBuffers.noiseBitmaskBuffer);
}
// Assign state blocks.
for (var i = 0; i < devices.Length; ++i)
{
var newOffset = newStateBlockOffsets[i];
var device = devices[i];
var oldOffset = device.m_StateBlock.byteOffset;
if (oldOffset == InputStateBlock.kInvalidOffset)
{
device.m_StateBlock.byteOffset = 0;
if (newOffset != 0)
{
device.BakeOffsetIntoStateBlockRecursive(newOffset);
}
}
else
{
var delta = newOffset - oldOffset;
if (delta != 0)
{
device.BakeOffsetIntoStateBlockRecursive(delta);
}
}
}
}
// Switch the current set of buffers used by the system.
public static void SwitchTo(InputStateBuffers buffers, InputUpdateType update)
{
s_CurrentBuffers = buffers.GetDoubleBuffersFor(update);
}