mmdeploy/csrc/apis/python/common.cpp

114 lines
3.0 KiB
C++

// Copyright (c) OpenMMLab. All rights reserved.
#include "common.h"
namespace mmdeploy {
std::map<std::string, void (*)(py::module&)>& gPythonBindings() {
static std::map<std::string, void (*)(py::module&)> v;
return v;
}
mm_mat_t GetMat(const PyImage& img) {
auto info = img.request();
if (info.ndim != 3) {
fprintf(stderr, "info.ndim = %d\n", (int)info.ndim);
throw std::runtime_error("continuous uint8 HWC array expected");
}
auto channels = (int)info.shape[2];
mm_mat_t mat{};
if (channels == 1) {
mat.format = MM_GRAYSCALE;
} else if (channels == 3) {
mat.format = MM_BGR;
} else {
throw std::runtime_error("images of 1 or 3 channels are supported");
}
mat.height = (int)info.shape[0];
mat.width = (int)info.shape[1];
mat.channel = channels;
mat.type = MM_INT8;
mat.data = (uint8_t*)info.ptr;
return mat;
}
#if 0
py::object ConvertToPyObject(const Value& value) {
switch (value.type()) {
case ValueType::kNull:
return py::none();
case ValueType::kBool:
return py::bool_(value.get<bool>());
case ValueType::kInt:
return py::int_(value.get<int64_t>());
case ValueType::kUInt:
return py::int_(value.get<uint64_t>());
case ValueType::kFloat:
return py::float_(value.get<double>());
case ValueType::kString:
return py::str(value.get<std::string>());
case ValueType::kArray: {
py::list list;
for (const auto& x : value) {
list.append(ConvertToPyObject(x));
}
return list;
}
case ValueType::kObject: {
py::dict dict;
for (auto it = value.begin(); it != value.end(); ++it) {
dict[it.key().c_str()] = ConvertToPyObject(*it);
}
return dict;
}
case ValueType::kAny:
return py::str("<any>");
default:
return py::str("<unknown>");
}
}
Value ConvertToValue(const py::object& obj) {
if (py::isinstance<py::none>(obj)) {
return nullptr;
} else if (py::isinstance<py::bool_>(obj)) {
return obj.cast<bool>();
} else if (py::isinstance<py::int_>(obj)) {
return obj.cast<int>();
} else if (py::isinstance<py::float_>(obj)) {
return obj.cast<double>();
} else if (py::isinstance<py::str>(obj)) {
return obj.cast<std::string>();
} else if (py::isinstance<py::list>(obj)) {
py::list src(obj);
Value::Array dst;
dst.reserve(src.size());
for (const auto& item : src) {
dst.push_back(ConvertToValue(py::reinterpret_borrow<py::object>(item)));
}
return dst;
} else if (py::isinstance<py::dict>(obj)) {
py::dict src(obj);
Value::Object dst;
for (const auto& item : src) {
dst.insert({item.first.cast<std::string>(),
ConvertToValue(py::reinterpret_borrow<py::object>(item.second))});
}
return dst;
} else {
MMDEPLOY_ERROR("unsupported Python object type: {}", obj.get_type().cast<std::string>());
return nullptr;
}
}
#endif
} // namespace mmdeploy
PYBIND11_MODULE(mmdeploy_python, m) {
for (const auto& [_, f] : mmdeploy::gPythonBindings()) {
f(m);
}
}