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#pragma once
#include "common.hpp"
namespace saw {
/**
* Generic wrapper class which stores data on the sycl side.
* Most of the times this will be a root object.
*/
template<typename Sch, uint64_t Dim, typename Encode>
class data<schema::Array<Sch, Dim>, encode::Sycl<Encode>> {
public:
using Schema = schema::Array<Sch,Dim>;
private:
// cl::sycl::buffer<data<Sch, encode::Native>> data_;
using sycl_usm_allocator = acpp::sycl::usm_allocator<data<Sch,Encode>, acpp::sycl::usm::alloc::shared>;
sycl_usm_allocator sycl_alloc_;
data<schema::FixedArray<schema::UInt64, Dim>, Encode> dims_;
data<schema::UInt64, Encode> size_;
std::vector<data<Sch,Encode>, sycl_usm_allocator> data_;
uint64_t get_full_size() const {
uint64_t s = 1;
for(uint64_t iter = 0; iter < Dim; ++iter){
auto& dim_iter = dims_.at(data<schema::UInt64>{iter});
s *= dim_iter.get();
}
return s;
}
public:
data(acpp::sycl::queue& q__):
sycl_alloc_{q__},
dims_{},
size_{0u},
data_{0u,sycl_alloc_}
{
for(uint64_t iter = 0; iter < Dim; ++iter){
dims_.at({iter}) = 0u;
}
}
data(const data<schema::FixedArray<schema::UInt64, Dim>, Encode>& dims__, acpp::sycl::queue& q__):
sycl_alloc_{q__},
dims_{dims__},
size_{get_full_size()},
data_{size_,sycl_alloc_}
{}
auto* get_internal_data() {
if(data_.empty()){
return nullptr;
}
return &(data_[0u]);
}
const auto& get_internal_size() const {
return size_;
}
data<schema::UInt64, Encode> size() const {
return size_;
}
data<schema::FixedArray<schema::UInt64, Dim>, Encode> dims() const {
return dims_;
}
constexpr data<Sch, Encode>& at(const data<schema::FixedArray<schema::UInt64, Dim>, Encode>& i){
return data_.at(this->get_flat_index(i));
}
constexpr const data<Sch, Encode>& at(const data<schema::FixedArray<schema::UInt64, Dim>, Encode>& i)const{
return data_.at(this->get_flat_index(i));
}
data<schema::UInt64,Encode> internal_flat_index(const data<schema::FixedArray<schema::UInt64, Dim>, Encode>& i) const {
return {this->get_flat_index(i)};
}
private:
template<typename U>
uint64_t get_flat_index(const U& i) const {
static_assert(
std::is_same_v<U,data<schema::FixedArray<schema::UInt64,Dim>, Encode>> or
std::is_same_v<U,std::array<uint64_t,Dim>>,
"Unsupported type"
);
assert(data_.size() == get_full_size());
uint64_t s = 0;
uint64_t stride = 1;
for(uint64_t iter = 0; iter < Dim; ++iter){
uint64_t ind = [](auto val) -> uint64_t {
using V = std::decay_t<decltype(val)>;
if constexpr (std::is_same_v<V,data<schema::UInt64>>){
return val.get();
}else if constexpr (std::is_same_v<V, uint64_t>){
return val;
}else{
static_assert(always_false<V>, "Cases exhausted");
}
}(i.at(iter));
assert(ind < dims_.at({iter}).get() );
s += ind * stride;
stride *= dims_.at(iter).get();
}
return s;
}
};
}
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