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update: enhance basic ranges build

master
Dnomd343 1 year ago
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d163791aa0
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bad13867cd
2 changed files with 117 additions and 245 deletions
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  1. 284
      src/core/all_cases/basic_ranges.cc
  2. 78
      src/core/all_cases/basic_ranges.h

284
src/core/all_cases/basic_ranges.cc
View File

@ -1,157 +1,64 @@
#include <iostream>
#include <vector>
#include <list>
#include <vector>
#include <algorithm>
#include "basic_ranges.h"
static uint32_t range_reverse(uint32_t bin) noexcept {
// bin = ((bin << 16) & 0xFFFF0000) | ((bin >> 16) & 0x0000FFFF);
// bin = ((bin << 8) & 0xFF00FF00) | ((bin >> 8) & 0x00FF00FF);
bin = __builtin_bswap32(bin);
bin = ((bin << 4) & 0xF0F0F0F0) | ((bin >> 4) & 0x0F0F0F0F);
return ((bin << 2) & 0xCCCCCCCC) | ((bin >> 2) & 0x33333333);
}
void build(std::vector<uint32_t> &result, int n1, int n2, int n3, int n4) {
#include "basic_ranges.h"
std::vector<int> demo;
demo.reserve(n1 + n2 + n3 + n4);
#include <iostream>
int move_num = 32 - (n1 + n2 + n3 + n4) * 2;
typedef uint32_t Range;
typedef std::vector<Range> Ranges;
typedef std::vector<Range>::iterator RangeIter;
typedef std::tuple<int, int, int, int> RangeType;
demo.insert(demo.end(), n1, 0b00);
demo.insert(demo.end(), n2, 0b01);
demo.insert(demo.end(), n3, 0b10);
demo.insert(demo.end(), n4, 0b11);
static const auto RangeTypeNum = 204;
// for (int i = 0; i < n1; ++i) {
// demo.emplace_back(0b00);
// }
// for (int i = 0; i < n2; ++i) {
// demo.emplace_back(0b01);
// }
// for (int i = 0; i < n3; ++i) {
// demo.emplace_back(0b10);
// }
// for (int i = 0; i < n4; ++i) {
// demo.emplace_back(0b11);
// }
static const uint32_t BASIC_RANGES_NUM = 7311921;
// for (auto x : demo) {
// std::cout << x << " ";
// }
// std::cout << std::endl;
class BasicRanges {
public:
static void build_ranges();
do {
static const Ranges& fetch();
uint32_t tmp = 0;
for (auto x : demo) {
tmp <<= 2;
tmp |= x;
}
tmp <<= move_num;
// volatile auto r = tmp;
result.emplace_back(tmp);
private:
static Ranges data_;
} while (next_permutation(demo.begin(), demo.end()));
}
template <class T>
void sort(T begin, T end, T kk) {
std::vector<uint32_t> tmp;
tmp.reserve(end - begin);
auto k1 = begin;
auto k2 = kk;
while (1 == 1) {
if (*k1 < *k2) {
tmp.emplace_back(*k1);
++k1;
if (k1 == kk) {
tmp.insert(tmp.end(), k2, end);
break;
}
} else {
tmp.emplace_back(*k2);
++k2;
if (k2 == end) {
tmp.insert(tmp.end(), k1, kk);
break;
}
}
}
static void spawn_ranges(int, int, int, int);
};
auto p = begin;
for (auto x : tmp) {
*p = x;
++p;
}
Ranges BasicRanges::data_;
static Range range_reverse(Range bin) noexcept {
#if defined(__GNUC__) || defined(__clang__)
bin = __builtin_bswap32(bin);
// TODO: using `std::byteswap` (c++23)
#else
// FIXME: `_byteswap_ulong` under MSVC
bin = ((bin << 16) & 0xFFFF0000) | ((bin >> 16) & 0x0000FFFF);
bin = ((bin << 8) & 0xFF00FF00) | ((bin >> 8) & 0x00FF00FF);
#endif
bin = ((bin << 4) & 0xF0F0F0F0) | ((bin >> 4) & 0x0F0F0F0F);
return ((bin << 2) & 0xCCCCCCCC) | ((bin >> 2) & 0x33333333);
}
template<class ITER_T>
void sort_v2(ITER_T begin, ITER_T end, ITER_T mid) {
std::vector<uint32_t> tmp {begin, mid};
auto k1 = tmp.begin();
auto k2 = mid;
auto target = begin;
while (1 == 1) {
// std::cout << *k1 << " vs " << *k2 << std::endl;
if (*k1 < *k2) {
*target = *k1;
++target;
// tmp.emplace_back(*k1);
++k1;
if (k1 == tmp.end()) {
// memcpy(&*target, &*k2, end - k2);
// tmp.insert(tmp.end(), k2, end);
break;
}
} else {
*target = *k2;
++target;
// tmp.emplace_back(*k2);
++k2;
if (k2 == end) {
// std::cout << "get it" << std::endl;
// std::cout << "size = " << (tmp.end() - k1) << std::endl;
// std::cout << (target - begin)
memcpy(&*target, &*k1, (tmp.end() - k1) * 4);
// tmp.insert(tmp.end(), k1, kk);
break;
}
}
}
//
// auto p = begin;
// for (auto x : tmp) {
// *p = x;
// ++p;
// }
consteval static std::array<RangeType, RangeTypeNum> basic_types() {
std::array<RangeType, RangeTypeNum> data;
for (int i = 0, n = 0; n <= 7; ++n) // number of 1x2 and 2x1 block -> 0 ~ 7
for (int n_2x1 = 0; n_2x1 <= n; ++n_2x1) // number of 2x1 block -> 0 ~ n
for (int n_1x1 = 0; n_1x1 <= (14 - n * 2); ++n_1x1) // number of 1x1 block -> 0 ~ (14 - 2n)
data[i++] = {16 - n * 2 - n_1x1, n - n_2x1, n_2x1, n_1x1};
return data;
}
template<class ITER_T>
void sort_v3(ITER_T begin, ITER_T end, ITER_T mid) {
std::vector<uint32_t> tmp = {begin, mid};
static void combine_sort(RangeIter begin, RangeIter mid, RangeIter end) {
Ranges tmp = {begin, mid};
auto p = tmp.begin();
for (;;) {
if (*p < *mid) {
*(begin++) = *(p++);
if (p == tmp.end()) {
if (p == tmp.end())
return;
}
} else {
*(begin++) = *(mid++);
if (mid == end) {
@ -162,88 +69,53 @@ void sort_v3(ITER_T begin, ITER_T end, ITER_T mid) {
}
}
void demo() {
// std::vector<uint32_t> demo = {1, 2, 5, 9, 11, 3, 6, 7};
// auto kk = demo.begin() + 5;
// for (auto p = demo.begin(); p < kk; ++p) {
// std::cout << *p << std::endl;
// }
// sort_v3(demo.begin(), demo.end(), kk);
//
// for (auto x : demo) {
// std::cout << x << std::endl;
// }
// return;
// uint32_t tmp = 0x5129B263; // 0xC98E6845
//
// for (uint64_t i = 0; i < 0xFFFFFFFF; ++i) {
// volatile auto r = range_reverse(tmp);
// }
// printf("%08X\n", tmp);
std::vector<uint32_t> result;
result.reserve(7311921);
// build(result, 4, 2, 1, 6);
std::list<decltype(result.begin())> pp;
pp.emplace_back(result.begin());
for (int n = 0; n <= 7; ++n) // number of 1x2 and 2x1 block -> 0 ~ 7
for (int n_2x1 = 0; n_2x1 <= n; ++n_2x1) // number of 2x1 block -> 0 ~ n
for (int n_1x1 = 0; n_1x1 <= (14 - n * 2); ++n_1x1) { // number of 1x1 block -> 0 ~ (14 - 2n)
build(result, 16 - n * 2 - n_1x1, n - n_2x1, n_2x1, n_1x1);
pp.emplace_back(result.end());
}
void BasicRanges::spawn_ranges(int n1, int n2, int n3, int n4) {
std::vector<int> series;
auto n = n1 + n2 + n3 + n4;
auto offset = (16 - n) << 1;
series.insert(series.end(), n1, 0b00);
series.insert(series.end(), n2, 0b01);
series.insert(series.end(), n3, 0b10);
series.insert(series.end(), n4, 0b11);
// std::stable_sort(result.begin(), result.end());
// return;
do {
uint32_t range = 0;
for (auto x : series)
(range <<= 2) |= x;
data_.emplace_back(range << offset);
} while (next_permutation(series.begin(), series.end()));
}
// sort(result.begin() + 363149, result.begin() + 459674, result.begin() + 408194);
void BasicRanges::build_ranges() {
data_.reserve(BASIC_RANGES_NUM);
std::list<RangeIter> flags {data_.begin()};
while (1 == 1) {
auto begin = pp.begin();
while (1 == 1) {
auto mid = begin;
++mid;
if (mid == pp.end()) {
break;
}
auto end = mid;
++end;
if (end == pp.end()) {
break;
}
// std::cout << (*begin - result.begin()) << " " << (*mid - result.begin()) << " " << (*end - result.begin()) << std::endl;
sort_v3(*begin, *end, *mid);
++begin;
++begin;
pp.erase(mid);
}
if (pp.size() == 2) {
break;
}
for (auto &t : basic_types()) {
spawn_ranges(std::get<0>(t), std::get<1>(t), std::get<2>(t), std::get<3>(t));
flags.emplace_back(data_.end());
}
do {
std::list<RangeIter>::iterator begin = flags.begin(), mid, end;
while (++(mid = begin) != flags.end() && ++(end = mid) != flags.end()) {
combine_sort(*begin, *mid, *end);
flags.erase(mid);
begin = end;
}
} while (flags.size() > 2);
// std::sort(result.begin(), result.end());
// std::stable_sort(result.begin(), result.end());
for (auto &x : result) {
for (auto &x : data_) {
x = range_reverse(x);
}
}
for (auto x : result) {
printf("%08X\n", x);
}
const Ranges& BasicRanges::fetch() {
return data_;
}
// for (uint32_t i = 0; i < 0xFF; ++i) {
// build(result, 4, 2, 1, 6);
// }
void demo() {
BasicRanges::build_ranges();
for (auto x : BasicRanges::fetch()) {
printf("%08X\n", x);
}
}

78
src/core/all_cases/basic_ranges.h
View File

@ -37,44 +37,44 @@ namespace klotski {
/// basic ranges count
const uint32_t BASIC_RANGES_SIZE = 7311921;
class BasicRanges {
public:
/// Three basic states, one-way transition.
/// {NOT_INIT} -> {BUILDING} -> {AVAILABLE}
enum Status {
NOT_INIT,
BUILDING,
AVAILABLE,
};
typedef std::vector<uint32_t> basic_ranges_t;
/// Trigger the build process, from `NOT_INIT` to `BUILDING`.
static void build();
/// Get current status of BasicRanges.
static Status status() noexcept;
/// Blocking access to constructed data.
static const basic_ranges_t& fetch();
private:
static bool available_;
static std::mutex building_;
static basic_ranges_t data_;
static void build_data();
public:
/// The number of types of blocks.
struct generate_t {
int n1; // number of `00` -> space
int n2; // number of `01` -> 1x2 block
int n3; // number of `10` -> 2x1 block
int n4; // number of `11` -> 1x1 block
};
/// Generate all basic-ranges of the specified type.
static void generate(basic_ranges_t &release, generate_t info);
};
// class BasicRanges {
// public:
// /// Three basic states, one-way transition.
// /// {NOT_INIT} -> {BUILDING} -> {AVAILABLE}
// enum Status {
// NOT_INIT,
// BUILDING,
// AVAILABLE,
// };
// typedef std::vector<uint32_t> basic_ranges_t;
//
// /// Trigger the build process, from `NOT_INIT` to `BUILDING`.
// static void build();
//
// /// Get current status of BasicRanges.
// static Status status() noexcept;
//
// /// Blocking access to constructed data.
// static const basic_ranges_t& fetch();
//
// private:
// static bool available_;
// static std::mutex building_;
// static basic_ranges_t data_;
//
// static void build_data();
//
// public:
// /// The number of types of blocks.
// struct generate_t {
// int n1; // number of `00` -> space
// int n2; // number of `01` -> 1x2 block
// int n3; // number of `10` -> 2x1 block
// int n4; // number of `11` -> 1x1 block
// };
//
// /// Generate all basic-ranges of the specified type.
// static void generate(basic_ranges_t &release, generate_t info);
// };
} // namespace klotski

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