From be35b0ed7cb6fbf9010142aab97854c467b14c5c Mon Sep 17 00:00:00 2001 From: Anthony Barbier Date: Tue, 11 Jul 2017 18:13:08 +0100 Subject: COMPMID-443: Collapse higher dimensions for activation layer Change-Id: I5943235aff1bb6440e3ab08e818d53aa5d94143a Reviewed-on: http://mpd-gerrit.cambridge.arm.com/80349 Tested-by: Kaizen Reviewed-by: Georgios Pinitas --- arm_compute/core/Window.inl | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'arm_compute/core/Window.inl') diff --git a/arm_compute/core/Window.inl b/arm_compute/core/Window.inl index 75428a145b..c33613fcea 100644 --- a/arm_compute/core/Window.inl +++ b/arm_compute/core/Window.inl @@ -43,6 +43,35 @@ inline void Window::set(const size_t dimension, const Window::Dimension &dim) _dims[dimension] = dim; } +inline Window Window::collapse_if_possible(const Window &full_window, size_t first) const +{ + bool is_collapsable = false; + Window collapsed; + for(size_t d = 0; d < Coordinates::num_max_dimensions; ++d) + { + if(is_collapsable) + { + collapsed.set(first, Window::Dimension(collapsed[first].end() * _dims[d].start(), collapsed[first].end() * _dims[d].end())); + } + else + { + collapsed.set(d, _dims[d]); + } + + if(is_collapsable || d == first) // Try to start collapsing from this dimension + { + // The _dims's dimension must match the full _dims dimension to be collapsable: + is_collapsable = _dims[d].start() == 0 && _dims[d].start() == full_window[d].start() + && full_window[d].end() == _dims[d].end(); + } + else + { + is_collapsable = false; + } + } + return collapsed; +} + inline void Window::shift(const size_t dimension, const int shift_value) { ARM_COMPUTE_ERROR_ON(dimension >= Coordinates::num_max_dimensions); -- cgit v1.2.1