1 files changed, 71 insertions, 0 deletions
diff --git a/src/cpu/kernels/genproposals/generic/neon/impl.cpp b/src/cpu/kernels/genproposals/generic/neon/impl.cpp
new file mode 100644
index 0000000000..8cb76f3afb
--- /dev/null
+++ b/src/cpu/kernels/genproposals/generic/neon/impl.cpp
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2019-2023 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "src/cpu/kernels/genproposals/generic/neon/impl.h"
+namespace arm_compute
+{
+class ITensor;
+class Window;
+namespace cpu
+{
+void compute_all_anchors_qasymm16(const ITensor     *anchors,
+                                  ITensor           *all_anchors,
+                                  ComputeAnchorsInfo anchors_info,
+                                  const Window      &window)
+{
+    Iterator all_anchors_it(all_anchors, window);
+    Iterator anchors_it(all_anchors, window);
+
+    const size_t num_anchors = anchors->info()->dimension(1);
+    const float  stride      = 1.f / anchors_info.spatial_scale();
+    const size_t feat_width  = anchors_info.feat_width();
+
+    const UniformQuantizationInfo qinfo = anchors->info()->quantization_info().uniform();
+
+    execute_window_loop(
+        window,
+        [&](const Coordinates &id)
+        {
+            const size_t anchor_offset = id.y() % num_anchors;
+
+            const auto out_anchor_ptr = reinterpret_cast<int16_t *>(all_anchors_it.ptr());
+            const auto anchor_ptr = reinterpret_cast<int16_t *>(anchors->ptr_to_element(Coordinates(0, anchor_offset)));
+
+            const size_t shift_idy = id.y() / num_anchors;
+            const float  shiftx    = (shift_idy % feat_width) * stride;
+            const float  shifty    = (shift_idy / feat_width) * stride;
+
+            const float new_anchor_x1 = dequantize_qsymm16(*anchor_ptr, qinfo.scale) + shiftx;
+            const float new_anchor_y1 = dequantize_qsymm16(*(1 + anchor_ptr), qinfo.scale) + shifty;
+            const float new_anchor_x2 = dequantize_qsymm16(*(2 + anchor_ptr), qinfo.scale) + shiftx;
+            const float new_anchor_y2 = dequantize_qsymm16(*(3 + anchor_ptr), qinfo.scale) + shifty;
+
+            *out_anchor_ptr       = quantize_qsymm16(new_anchor_x1, qinfo.scale);
+            *(out_anchor_ptr + 1) = quantize_qsymm16(new_anchor_y1, qinfo.scale);
+            *(out_anchor_ptr + 2) = quantize_qsymm16(new_anchor_x2, qinfo.scale);
+            *(out_anchor_ptr + 3) = quantize_qsymm16(new_anchor_y2, qinfo.scale);
+        },
+        all_anchors_it);
+}
+} // namespace cpu
+} // namespace arm_compute