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test: add circular access in TensorBase::assign (AIV-802) #258

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test: add circular access in TensorBase::assign (AIV-802) #258

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3 changes: 2 additions & 1 deletion esp-dl/dl/tensor/include/dl_tensor_base.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -147,10 +147,11 @@ class TensorBase {
* @brief Assign tensor to this tensor
*
* @param tensor
* @param start_position The starting index in src_data from which to begin copying data.
*
* @return ture if assign successfully, otherwise false.
*/
bool assign(TensorBase *tensor);
bool assign(TensorBase *tensor, int start_position = 0);

/**
* @brief Assign data to this tensor
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18 changes: 15 additions & 3 deletions esp-dl/dl/tensor/src/dl_tensor_base.cpp
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Expand Up @@ -167,7 +167,7 @@ TensorBase::TensorBase(
this->caps = caps;
}

bool TensorBase::assign(TensorBase *tensor)
bool TensorBase::assign(TensorBase *tensor, int start_position)
{
if (tensor == nullptr || this->get_size() != tensor->get_size()) {
return false;
Expand All @@ -181,9 +181,21 @@ bool TensorBase::assign(TensorBase *tensor)

if (this->dtype == DATA_TYPE_INT8) {
int8_t *data = (int8_t *)this->data;
for (int i = 0; i < this->get_size(); i++) {
data[i] = quantize<int8_t>(src_data[i], inv_scale);
int data_size = this->get_size();
// Ensure start_position is within valid range [0, data_size)
if (start_position < 0 || start_position >= data_size)
return false;

int i = 0;
// Copy from start_position to end of src_data
for (int j = start_position; j < data_size; i++, j++) {
data[i] = quantize<int8_t>(src_data[j], inv_scale);
}
// Wrap around and copy from start of src_data to start_position - 1
for (int j = 0; j < start_position; ++i, ++j) {
data[i] = quantize<int8_t>(src_data[j], inv_scale);
}

} else if (this->dtype == DATA_TYPE_INT16) {
int16_t *data = (int16_t *)this->data;
for (int i = 0; i < this->get_size(); i++) {
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