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
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+//
+//  ShapeDetectionOutput.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 DetectionOutputComputer : 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());
+
+        // set dims
+        auto &output    = outputs[0]->buffer();
+        auto maxNumber = op->main_as_DetectionOutput()->keepTopK();
+
+        output.dim[0].extent = 1;
+        output.dim[1].extent = 1;
+        output.dim[2].extent = maxNumber;
+        output.dim[3].extent = 6; // maximum width
+        TensorUtils::getDescribe(outputs[0])->dimensionFormat = MNN_DATA_FORMAT_NC4HW4;
+        output.type = halide_type_of<float>();
+
+        return true;
+    }
+};
+
+REGISTER_SHAPE(DetectionOutputComputer, OpType_DetectionOutput);
+} // namespace MNN