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 +1,58 @@
+//
+//  Python.cpp
+//  MNNConverter
+//
+//  Created by MNN on 2019/01/31.
+//  Copyright © 2018, Alibaba Group Holding Limited
+//
+
+#include <string.h>
+#include "OpConverter.hpp"
+using namespace std;
+
+class Python : public OpConverter {
+public:
+    virtual void run(MNN::OpT* dstOp, const caffe::LayerParameter& parameters, const caffe::LayerParameter& weight);
+    virtual MNN::OpType opType() {
+        return MNN::OpType_Proposal;
+    }
+    virtual MNN::OpParameter type() {
+        return MNN::OpParameter_Proposal;
+    }
+};
+
+void Python::run(MNN::OpT* dstOp, const caffe::LayerParameter& parameters, const caffe::LayerParameter& weight) {
+    auto proposal = new MNN::ProposalT;
+    auto Par      = parameters.python_param();
+    if (!Par.has_param_str()) {
+        proposal->featStride = 16;
+    } else {
+        const string& StrideStr = Par.param_str();
+        const string numb       = StrideStr.substr(StrideStr.find(':') + 1);
+        proposal->featStride    = (int)atof(numb.c_str());
+    }
+    proposal->baseSize         = 8;
+    proposal->preNmsTopN       = 300;
+    proposal->afterNmsTopN     = 32;
+    proposal->nmsThreshold     = 0.7f;
+    proposal->minSize          = 3;
+    proposal->ratios           = std::unique_ptr<MNN::BlobT>(new MNN::BlobT);
+    proposal->ratios->dataType = MNN::DataType_DT_FLOAT;
+    proposal->ratios->float32s.resize(3);
+    proposal->ratios->float32s[0] = 0.5f;
+    proposal->ratios->float32s[1] = 1.0f;
+    proposal->ratios->float32s[2] = 2.0f;
+    proposal->ratios->dims.push_back(3);
+
+    proposal->scales           = std::unique_ptr<MNN::BlobT>(new MNN::BlobT);
+    proposal->scales->dataType = MNN::DataType_DT_FLOAT;
+    proposal->scales->float32s.resize(3);
+    proposal->scales->float32s[0] = 8.0f;
+    proposal->scales->float32s[1] = 16.0f;
+    proposal->scales->float32s[2] = 32.0f;
+    proposal->scales->dims.push_back(3);
+
+    dstOp->main.value = proposal;
+}
+
+static OpConverterRegister<Python> a("Python");