resize method

void resize(int width, int height)

Reallocates the target at a new size. Consumers pick up the new textures on the next render; the next update check re-renders regardless of policy so the target is never displayed stale-sized.

Implementation

void resize(int width, int height) {
  assert(width > 0 && height > 0, 'RenderTexture size must be positive');
  final newSize = ui.Size(width.toDouble(), height.toDouble());
  if (newSize == _size) {
    return;
  }
  _size = newSize;
  // The Surface ring detects the size change on next acquire; force a
  // re-render so manual/interval targets don't keep a stale-sized image.
  _updateRequested = true;
}