diff options
Diffstat (limited to 'arm_compute/core/Helpers.inl')
| -rw-r--r-- | arm_compute/core/Helpers.inl | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arm_compute/core/Helpers.inl b/arm_compute/core/Helpers.inl index b359811328..3db8369f08 100644 --- a/arm_compute/core/Helpers.inl +++ b/arm_compute/core/Helpers.inl @@ -300,6 +300,39 @@ inline bool set_quantization_info_if_empty(ITensorInfo &info, QuantizationInfo q return false; } +inline ValidRegion calculate_valid_region_scale(const ITensorInfo &src_info, const TensorShape &dst_shape, InterpolationPolicy policy, BorderSize border_size, bool border_undefined) +{ + const auto wr = static_cast<float>(dst_shape[0]) / static_cast<float>(src_info.tensor_shape()[0]); + const auto hr = static_cast<float>(dst_shape[1]) / static_cast<float>(src_info.tensor_shape()[1]); + + ValidRegion valid_region{ Coordinates(), dst_shape, src_info.tensor_shape().num_dimensions() }; + + Coordinates &anchor = valid_region.anchor; + TensorShape &shape = valid_region.shape; + + anchor.set(0, (policy == InterpolationPolicy::BILINEAR + && border_undefined) ? + ((static_cast<int>(src_info.valid_region().anchor[0]) + border_size.left + 0.5f) * wr - 0.5f) : + ((static_cast<int>(src_info.valid_region().anchor[0]) + 0.5f) * wr - 0.5f)); + anchor.set(1, (policy == InterpolationPolicy::BILINEAR + && border_undefined) ? + ((static_cast<int>(src_info.valid_region().anchor[1]) + border_size.top + 0.5f) * hr - 0.5f) : + ((static_cast<int>(src_info.valid_region().anchor[1]) + 0.5f) * hr - 0.5f)); + float shape_out_x = (policy == InterpolationPolicy::BILINEAR + && border_undefined) ? + ((static_cast<int>(src_info.valid_region().anchor[0]) + static_cast<int>(src_info.valid_region().shape[0]) - 1) - 1 + 0.5f) * wr - 0.5f : + ((static_cast<int>(src_info.valid_region().anchor[0]) + static_cast<int>(src_info.valid_region().shape[0])) + 0.5f) * wr - 0.5f; + float shape_out_y = (policy == InterpolationPolicy::BILINEAR + && border_undefined) ? + ((static_cast<int>(src_info.valid_region().anchor[1]) + static_cast<int>(src_info.valid_region().shape[1]) - 1) - 1 + 0.5f) * hr - 0.5f : + ((static_cast<int>(src_info.valid_region().anchor[1]) + static_cast<int>(src_info.valid_region().shape[1])) + 0.5f) * hr - 0.5f; + + shape.set(0, shape_out_x - anchor[0]); + shape.set(1, shape_out_y - anchor[1]); + + return valid_region; +} + inline Coordinates index2coords(const TensorShape &shape, int index) { int num_elements = shape.total_size(); |