chore: import upstream snapshot with attribution

2026-07-13 13:33:03 +08:00
commit 5b57521aa1
8226 changed files with 3425766 additions and 0 deletions
@@ -0,0 +1,43 @@
+//
+//  ShapeProposal.cpp
+//  MNN
+//
+//  Created by MNN on 2019/01/10.
+//  Copyright © 2018, Alibaba Group Holding Limited
+//
+
+#include "shape/SizeComputer.hpp"
+#include "core/Macro.h"
+
+namespace MNN {
+
+// Size Computer
+class ProposalComputer : public SizeComputer {
+    virtual bool onComputeSize(const MNN::Op *op, const std::vector<Tensor *> &inputs,
+                               const std::vector<Tensor *> &outputs) const override {
+        MNN_ASSERT(3 == inputs.size());
+        MNN_ASSERT(1 <= outputs.size() && outputs.size() <= 2);
+
+        auto proposal        = op->main_as_Proposal();
+        auto &output         = outputs[0]->buffer();
+        output.dim[3].extent = 1;
+        output.dim[2].extent = 1;
+        output.dim[1].extent = 5;
+        output.dim[0].extent = proposal->afterNmsTopN() * inputs[0]->buffer().dim[0].extent;
+
+        if (outputs.size() > 1) {
+            auto &roi         = outputs[1]->buffer();
+            roi.dim[3].extent = 1;
+            roi.dim[2].extent = 1;
+            roi.dim[1].extent = 1;
+            roi.dim[0].extent = proposal->afterNmsTopN() * inputs[0]->buffer().dim[0].extent;
+        }
+        output.type = halide_type_of<float>();
+        TensorUtils::getDescribe(outputs[0])->dimensionFormat = TensorUtils::getDescribe(inputs[0])->dimensionFormat;
+
+        return true;
+    }
+};
+
+REGISTER_SHAPE(ProposalComputer, OpType_Proposal);
+} // namespace MNN