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tensor.cpp
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#include "uTensor/core/tensor.hpp"
#include "uTensor/core/context.hpp"
#include "uTensor/core/uTensor_util.hpp"
namespace uTensor {
// Tensor::Tensor(const Tensor& that) {} // Cannot copy Tensors, must pass by
// reference
TensorInterface* Tensor::operator->() {
return reinterpret_cast<TensorInterface*>(_ptr);
}
const TensorInterface* Tensor::operator->() const {
return reinterpret_cast<const TensorInterface*>(_ptr);
}
TensorInterface* Tensor::operator*() {
return reinterpret_cast<TensorInterface*>(_ptr);
}
Tensor::~Tensor() { free(); }
void Tensor::free() {
void* ptr_t = _ptr; // unbind invalidates this handle so store a copy
if (_ptr) {
AllocatorInterface* alloc =
Context::get_default_context()->get_metadata_allocator();
if (alloc->is_bound(_ptr, this)) {
alloc->unbind(_ptr, this);
}
delete reinterpret_cast<TensorInterface*>(ptr_t);
alloc->deallocate(ptr_t);
}
_ptr = nullptr;
}
Tensor::Tensor() : Handle() {}
Tensor::Tensor(TensorInterface* ptr) : Handle((void*)ptr) {
// Context::get_default_context()->get_metadata_allocator()->bind(_ptr, this);
if (ptr != nullptr) {
bind(*this, *Context::get_default_context()->get_metadata_allocator());
}
}
Tensor& Tensor::operator=(TensorInterface* ptr) {
_ptr = (void*)ptr;
bind(*this, *Context::get_default_context()->get_metadata_allocator());
// Context::get_metadata_allocator()->bind(_ptr, this);
return *this;
}
Tensor::Tensor(Tensor&& that) {
_ptr = that._ptr;
AllocatorInterface* alloc =
Context::get_default_context()->get_metadata_allocator();
if (alloc->is_bound(_ptr, &that)) {
alloc->unbind(_ptr, &that);
alloc->bind(_ptr, this);
}
that._ptr = nullptr;
}
Tensor& Tensor::operator=(Tensor&& that) {
if (this != &that) {
_ptr = that._ptr;
AllocatorInterface* alloc =
Context::get_default_context()->get_metadata_allocator();
if (alloc->is_bound(_ptr, &that)) {
alloc->unbind(_ptr, &that);
alloc->bind(_ptr, this);
}
that._ptr = nullptr;
}
return *this;
}
// Add some bits to make the interface nicer to the user
// Force everything to be on the utensor allocator
void* Tensor::operator new(size_t sz) { // Have to delegate this size from
// tensors somehow + sizeof(Tensor)
void* p =
Context::get_default_context()->get_metadata_allocator()->allocate(sz);
return p;
}
void Tensor::operator delete(void* p) {
Context::get_default_context()->get_metadata_allocator()->deallocate(p);
}
// Interface
const IntegralValue Tensor::operator()(uint16_t i, uint16_t j, uint16_t k,
uint16_t l) const {
return reinterpret_cast<TensorInterface*>(_ptr)->operator()(i, j, k, l);
}
IntegralValue Tensor::operator()(uint16_t i, uint16_t j, uint16_t k,
uint16_t l) {
return reinterpret_cast<TensorInterface*>(_ptr)->operator()(i, j, k, l);
}
const IntegralValue Tensor::operator()(uint32_t linear_index) const {
return reinterpret_cast<TensorInterface*>(_ptr)->operator()(linear_index);
}
IntegralValue Tensor::operator()(uint32_t linear_index) {
return reinterpret_cast<TensorInterface*>(_ptr)->operator()(linear_index);
}
TensorShape& Tensor::get_shape() {
return reinterpret_cast<TensorInterface*>(_ptr)->get_shape();
}
const TensorShape& Tensor::get_shape() const {
return reinterpret_cast<TensorInterface*>(_ptr)->get_shape();
}
TensorInterface* TensorReference::operator*() {
return reinterpret_cast<TensorInterface*>(_ref->operator*());
}
// Add a couple of bits for GDB debugging since GDB doesnt support operator()
IntegralValue Tensor::gdb_read(uint16_t i) {
return reinterpret_cast<TensorInterface*>(_ptr)->operator()(i);
}
IntegralValue Tensor::gdb_read(uint16_t i, uint16_t j) {
return reinterpret_cast<TensorInterface*>(_ptr)->operator()(i, j);
}
IntegralValue Tensor::gdb_read(uint16_t i, uint16_t j, uint16_t k) {
return reinterpret_cast<TensorInterface*>(_ptr)->operator()(i, j, k);
}
IntegralValue Tensor::gdb_read(uint16_t i, uint16_t j, uint16_t k, uint16_t l) {
return reinterpret_cast<TensorInterface*>(_ptr)->operator()(i, j, k, l);
}
void print(const Tensor& t) {
const TensorShape& t_shape = t->get_shape();
if (t_shape.num_dims() > 2) {
uTensor_printf("printing > 2D tensors not supported\n");
return;
}
uTensor_printf("[\n");
for (int j = 0; j < t_shape[1]; j++) {
uTensor_printf("[ ");
for (int i = 0; i < t_shape[0]; i++) {
switch (t->get_type()) {
case u8:
uTensor_printf("%hhu", static_cast<uint8_t>(t(j, i)));
break;
case i8:
uTensor_printf("%hhd", static_cast<int8_t>(t(j, i)));
break;
case u16:
uTensor_printf("%hu", static_cast<uint16_t>(t(j, i)));
break;
case i16:
uTensor_printf("%hd", static_cast<int16_t>(t(j, i)));
break;
case u32:
uTensor_printf("%u", static_cast<uint32_t>(t(j, i)));
break;
case i32:
uTensor_printf("%d", static_cast<int32_t>(t(j, i)));
break;
case flt:
uTensor_printf("%f", static_cast<float>(t(j, i)));
break;
default:
uTensor_printf("Unknown data type");
return;
}
if (i != (t_shape[0] - 1)) {
uTensor_printf(", ");
} else {
uTensor_printf(" ");
}
}
uTensor_printf("]\n");
}
uTensor_printf("]\n");
}
SimpleNamedTensor::SimpleNamedTensor(const uTensor::string& name,
Tensor& tensor)
: name(&name), _tensor(&tensor) {}
SimpleNamedTensor::SimpleNamedTensor() : name(nullptr), _tensor(nullptr) {}
Tensor& SimpleNamedTensor::tensor() { return *_tensor; }
} // namespace uTensor