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update: apply new fast short codec

legacy
Dnomd343 3 years ago
parent
c530c3f65c
commit
8d82ee362c
8 changed files with 247 additions and 202 deletions
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  1. 38
      src/main.cc
  2. 185
      src/short_code/convert.cc
  3. 100
      src/short_code/data_loader.cc
  4. 2
      src/short_code/offset/all_cases_offset.h
  5. 2
      src/short_code/offset/basic_ranges_offset.h
  6. 2
      src/short_code/offset/range_prefix_offset.h
  7. 22
      src/short_code/short_code.h
  8. 96
      src/short_code/short_code_mark.h

38
src/main.cc
View File

@ -174,8 +174,15 @@ int main() {
// }
// }
// ShortCode::speed_up(ShortCode::FAST);
// AllCases::build();
ShortCode::speed_up(ShortCode::FAST);
AllCases::build();
std::vector<uint64_t> all_cases;
for (uint64_t head = 0; head < 16; ++head) {
for (const auto &range : BasicRanges::fetch()) {
all_cases.emplace_back(head << 32 | range);
}
}
// std::cout << "start benchmark" << std::endl;
auto start_time = clock();
@ -254,21 +261,24 @@ int main() {
// printf("%08X\n", range);
// }
AllCases::build();
for (auto head = 0; head < 16; ++head) {
uint64_t prefix = (uint64_t)head << 32;
for (const auto &range : AllCases::fetch()[head]) {
printf("%09lX\n", prefix | range);
}
}
// AllCases::build();
// for (auto head = 0; head < 16; ++head) {
// uint64_t prefix = (uint64_t)head << 32;
// for (const auto &range : AllCases::fetch()[head]) {
// printf("%09lX\n", prefix | range);
// }
// }
// for (uint32_t i = 0; i < 29334498; ++i) {
for (uint32_t i = 0; i < 29334498; ++i) {
// if (ShortCode::fast_encode(ShortCode::fast_decode(i)) != i) {
// std::cout << "error" << std::endl;
// }
// }
// ShortCode::fast_encode_legacy(i);
// ShortCode::fast_decode(i);
ShortCode::fast_encode(all_cases[i]);
}
// printf("%09lX\n", ShortCode::tiny_decode_demo(14323231));
// printf("%09lX\n", ShortCode::tiny_decode(14323231));
// std::cout << ShortCode::tiny_encode_demo(0x6EC0F8800) << std::endl;
// auto br = BasicRanges::fetch();
@ -302,8 +312,8 @@ int main() {
// printf("%09lX\n", ShortCode::fast_decode(14323231));
// std::cout << ShortCode::fast_encode(0x6EC0F8800) << std::endl;
std::cerr << (clock() - start_time) * 1000 / CLOCKS_PER_SEC << "ms" << std::endl;
// std::cerr << (clock() - start_time) * 1000000 / CLOCKS_PER_SEC << "us" << std::endl;
// std::cerr << (clock() - start_time) * 1000 / CLOCKS_PER_SEC << "ms" << std::endl;
std::cerr << (clock() - start_time) * 1000000 / CLOCKS_PER_SEC << "us" << std::endl;
// std::cout << "complete benchmark" << std::endl;
// pause();

185
src/short_code/convert.cc
View File

@ -1,67 +1,174 @@
#include <algorithm>
#include "common.h"
#include "short_code.h"
#include "basic_ranges.h"
#include "short_code_mark.h"
//#include "short_code_mark.h"
CommonCode ShortCode::to_common_code() const { // convert to common code
if (ShortCode::check_mode() == ShortCode::NORMAL) {
return CommonCode::unsafe_create(tiny_decode(code)); // using normal mode
return CommonCode::unsafe_create(tiny_decode(code)); // normal mode
}
return CommonCode::unsafe_create(all_cases_list[code]); // using fast mode
return CommonCode::unsafe_create(fast_decode(code)); // fast mode
}
ShortCode::ShortCode(const CommonCode &common_code) { // convert from common code
if (ShortCode::check_mode() == ShortCode::NORMAL) {
code = tiny_encode(common_code.unwrap()); // using normal mode
code = tiny_encode(common_code.unwrap()); // normal mode
} else {
code = all_cases_dict[common_code.unwrap()]; // using fast mode
code = fast_encode(common_code.unwrap()); // fast mode
}
}
/// ensure that input common code is valid
uint32_t ShortCode::tiny_encode(uint64_t common_code) { // common_code --low-memory--> short_code
uint32_t offset = 0;
uint32_t head = common_code >> 32; // common code head
uint32_t prefix = (common_code >> 24) & 0xFF; // common code range prefix
auto target = Common::range_reverse((uint32_t)common_code); // target range
#include "all_cases.h"
#include "all_cases_offset.h"
#include "basic_ranges_offset.h"
#include "range_prefix_offset.h"
for (int index = 0; index < BASIC_RANGES_INDEX[prefix]; ++index) { // traverse basic ranges
uint32_t range = BasicRanges::fetch()[index + BASIC_RANGES_OFFSET[prefix]];
if (range == target) {
break; // found target range
}
if (Common::check_case(head, range)) { // search for valid cases
++offset; // record sub offset
}
}
return ALL_CASES_OFFSET[head] + RANGE_PREFIX_OFFSET[head][prefix] + offset;
uint64_t ShortCode::fast_decode(uint32_t short_code) { // short code => common code
auto offset = std::upper_bound( // using binary search
ALL_CASES_OFFSET, ALL_CASES_OFFSET + 16, short_code
) - 1;
uint64_t head = offset - ALL_CASES_OFFSET; // head index
return (head << 32) | AllCases::fetch()[head][short_code - *offset]; // release common code
}
uint32_t ShortCode::fast_encode(uint64_t common_code) { // common code => short code
auto head = common_code >> 32; // head index
const auto &ranges = AllCases::fetch()[head]; // available ranges
auto offset = std::lower_bound(ranges.begin(), ranges.end(), (uint32_t)common_code) - ranges.begin();
return ALL_CASES_OFFSET[head] + offset; // release short code
}
/// ensure that input common code is valid
//uint32_t ShortCode::tiny_encode(uint64_t common_code) { // common_code --low-memory--> short_code
// uint32_t offset = 0;
// uint32_t head = common_code >> 32; // common code head
// uint32_t prefix = (common_code >> 24) & 0xFF; // common code range prefix
// auto target = Common::range_reverse((uint32_t)common_code); // target range
//
// for (int index = 0; index < BASIC_RANGES_INDEX[prefix]; ++index) { // traverse basic ranges
// uint32_t range = BasicRanges::fetch()[index + BASIC_RANGES_OFFSET[prefix]];
// if (range == target) {
// break; // found target range
// }
// if (Common::check_case(head, range)) { // search for valid cases
// ++offset; // record sub offset
// }
// }
// return ALL_CASES_OFFSET[head] + RANGE_PREFIX_OFFSET[head][prefix] + offset;
//}
/// ensure that input short code is valid
uint64_t ShortCode::tiny_decode(uint32_t short_code) { // short_code --low-memory--> common_code
uint32_t head = 0, prefix = 0;
for (; head < 16; ++head) {
if (short_code < ALL_CASES_INDEX[head]) { // match head
break;
}
short_code -= ALL_CASES_INDEX[head]; // short code approximate
//uint64_t ShortCode::tiny_decode(uint32_t short_code) { // short_code --low-memory--> common_code
// uint32_t head = 0, prefix = 0;
// for (; head < 16; ++head) {
// if (short_code < ALL_CASES_INDEX[head]) { // match head
// break;
// }
// short_code -= ALL_CASES_INDEX[head]; // short code approximate
// }
// for (; prefix < 256; ++prefix) {
// if (short_code < RANGE_PREFIX_INDEX[head][prefix]) { // match range prefix
// break;
// }
// short_code -= RANGE_PREFIX_INDEX[head][prefix]; // short code approximate
// }
//
// uint32_t range;
// for (int index = 0; index < BASIC_RANGES_INDEX[prefix]; ++index) { // traverse basic ranges
// range = BasicRanges::fetch()[index + BASIC_RANGES_OFFSET[prefix]];
// if (Common::check_case(head, range)) { // search for valid cases
// if (short_code == 0) {
// break; // found target range
// }
// --short_code; // short code approximate
// }
// }
// return (uint64_t)head << 32 | Common::range_reverse(range); // release common code
//}
// TODO: try to using 10-bits range prefix -> less static data
uint64_t ShortCode::tiny_decode(uint32_t short_code) {
/// match head index
auto offset = std::upper_bound( // binary search
ALL_CASES_OFFSET, ALL_CASES_OFFSET + 16, short_code
) - 1;
uint64_t head = offset - ALL_CASES_OFFSET; // head index
short_code -= *offset;
/// match range prefix
offset = std::upper_bound( // binary search
RANGE_PREFIX_OFFSET[head], RANGE_PREFIX_OFFSET[head] + 4096, short_code
) - 1;
uint32_t prefix = offset - RANGE_PREFIX_OFFSET[head]; // range prefix
short_code -= *offset;
/// search target range
const auto &basic_ranges = BasicRanges::fetch();
for (auto index = BASIC_RANGES_OFFSET[prefix]; index < basic_ranges.size(); ++index) {
uint32_t range = basic_ranges[index]; // traverse basic ranges
uint32_t broken = Common::check_range(head, basic_ranges[index]); // check and get broken address
auto range_rev = Common::range_reverse(basic_ranges[index]); // reversed range
if (broken) { // invalid case
auto delta = (uint32_t)1 << (32 - broken * 2); // this --delta--> next possible range
auto next_min = (range_rev & ~(delta - 1)) + delta;
while (Common::range_reverse(basic_ranges[++index]) < next_min); // located next range
--index;
} else {
if (!short_code--) { // short code approximate
/// found target range
return head << 32 | range_rev;
}
for (; prefix < 256; ++prefix) {
if (short_code < RANGE_PREFIX_INDEX[head][prefix]) { // match range prefix
break;
}
short_code -= RANGE_PREFIX_INDEX[head][prefix]; // short code approximate
}
uint32_t range;
for (int index = 0; index < BASIC_RANGES_INDEX[prefix]; ++index) { // traverse basic ranges
range = BasicRanges::fetch()[index + BASIC_RANGES_OFFSET[prefix]];
return 0; // never reach when input valid
}
uint32_t ShortCode::tiny_encode(uint64_t common_code) {
// printf("%09lX\n", common_code);
uint32_t head = common_code >> 32;
uint32_t prefix = (common_code >> 20) & 0xFFF;
// printf("head = %d\n", head);
// printf("prefix = %X\n", prefix);
uint32_t offset = 0;
auto target = Common::range_reverse((uint32_t)common_code); // target range
const auto &basic_ranges = BasicRanges::fetch();
for (auto index = BASIC_RANGES_OFFSET[prefix]; index < basic_ranges.size(); ++index) { // traverse basic ranges
uint32_t range = basic_ranges[index];
if (Common::check_case(head, range)) { // search for valid cases
if (short_code == 0) {
break; // found target range
if (range == target) { // found target range
return ALL_CASES_OFFSET[head] + RANGE_PREFIX_OFFSET[head][prefix] + offset;
}
--short_code; // short code approximate
++offset; // record sub offset
}
}
return (uint64_t)head << 32 | Common::range_reverse(range); // release common code
return 0;
}

100
src/short_code/data_loader.cc
View File

@ -16,6 +16,10 @@ void ShortCode::speed_up(ShortCode::Mode mode) {
}
if (mode == ShortCode::FAST) { // build fast mode data
build_mappings();
// TODO: confirm AllCases data available
AllCases::build();
} else if (mode == ShortCode::NORMAL && !normal_mode_available) { // build normal mode data
BasicRanges::build(); // blocking function
normal_mode_available = true;
@ -52,20 +56,11 @@ void ShortCode::build_mappings() { // build fast search mappings
map_building.unlock();
}
#include <algorithm>
uint64_t ShortCode::fast_decode(uint32_t short_code) {
auto offset = std::upper_bound(ALL_CASES_OFFSET, ALL_CASES_OFFSET + 16, short_code) - 1; // binary search
uint64_t head = offset - ALL_CASES_OFFSET; // head index
return (head << 32) | AllCases::fetch()[head][short_code - *offset]; // release common code
uint32_t ShortCode::fast_encode_legacy(uint64_t common_code) {
return all_cases_dict[common_code];
}
uint32_t ShortCode::fast_encode(uint64_t common_code) {
auto head = common_code >> 32; // head index
const auto &ranges = AllCases::fetch()[head]; // available ranges
auto offset = std::lower_bound(ranges.begin(), ranges.end(), (uint32_t)common_code) - ranges.begin();
return ALL_CASES_OFFSET[head] + offset; // release short code
}
#include <algorithm>
#include "basic_ranges_offset.h"
#include "range_prefix_offset.h"
@ -73,84 +68,3 @@ uint32_t ShortCode::fast_encode(uint64_t common_code) {
#include <iostream>
#include "common.h"
uint64_t ShortCode::tiny_decode_demo(uint32_t short_code) {
/// match head index
auto offset = std::upper_bound( // binary search
ALL_CASES_OFFSET, ALL_CASES_OFFSET + 16, short_code
) - 1;
uint64_t head = offset - ALL_CASES_OFFSET; // head index
short_code -= *offset;
/// match range prefix
offset = std::upper_bound( // binary search
RANGE_PREFIX_OFFSET_[head], RANGE_PREFIX_OFFSET_[head] + 4096, short_code
) - 1;
uint32_t prefix = offset - RANGE_PREFIX_OFFSET_[head]; // range prefix
short_code -= *offset;
/// search target range
const auto &basic_ranges = BasicRanges::fetch();
for (auto index = BASIC_RANGES_OFFSET_[prefix]; index < basic_ranges.size(); ++index) {
uint32_t range = basic_ranges[index]; // traverse basic ranges
uint32_t broken = Common::check_range(head, basic_ranges[index]); // check and get broken address
auto range_rev = Common::range_reverse(basic_ranges[index]); // reversed range
if (broken) { // invalid case
auto delta = (uint32_t)1 << (32 - broken * 2); // this --delta--> next possible range
auto next_min = (range_rev & ~(delta - 1)) + delta;
while (Common::range_reverse(basic_ranges[++index]) < next_min); // located next range
--index;
} else {
if (!short_code--) { // short code approximate
/// found target range
return head << 32 | range_rev;
}
}
}
return 0; // never reach when input valid
}
uint32_t ShortCode::tiny_encode_demo(uint64_t common_code) {
// printf("%09lX\n", common_code);
uint32_t head = common_code >> 32;
uint32_t prefix = (common_code >> 20) & 0xFFF;
// printf("head = %d\n", head);
// printf("prefix = %X\n", prefix);
uint32_t offset = 0;
auto target = Common::range_reverse((uint32_t)common_code); // target range
const auto &basic_ranges = BasicRanges::fetch();
for (auto index = BASIC_RANGES_OFFSET_[prefix]; index < basic_ranges.size(); ++index) { // traverse basic ranges
uint32_t range = basic_ranges[index];
if (Common::check_case(head, range)) { // search for valid cases
if (range == target) { // found target range
return ALL_CASES_OFFSET[head] + RANGE_PREFIX_OFFSET_[head][prefix] + offset;
}
++offset; // record sub offset
}
}
return 0;
}

2
src/short_code/offset/all_cases_offset.h
View File

@ -2,7 +2,7 @@
#include <cstdint>
const uint32_t ALL_CASES_OFFSET_[16] = {
const uint32_t ALL_CASES_OFFSET[16] = {
0, 2942906, 5203298, 8146204,
8146204, 10468254, 12345199, 14667249,
14667249, 16989299, 18866244, 21188294,

2
src/short_code/offset/basic_ranges_offset.h
View File

@ -2,7 +2,7 @@
#include <cstdint>
const uint32_t BASIC_RANGES_OFFSET_[4096] = {
const uint32_t BASIC_RANGES_OFFSET[4096] = {
0, 18272, 24960, 31648, 49920, 56608, 59056, 61504,
68192, 74880, 77328, 79776, 86464, 104736, 111424, 118112,
136384, 143072, 145520, 147968, 154656, 157104, 158000, 158896,

2
src/short_code/offset/range_prefix_offset.h
View File

@ -2,7 +2,7 @@
#include <cstdint>
const uint32_t RANGE_PREFIX_OFFSET_[16][4096] = {
const uint32_t RANGE_PREFIX_OFFSET[16][4096] = {
/// --------------------------------- 0x0 ---------------------------------
0, 9527, 12991, 16067, 25594, 29058, 30527, 31657,
35121, 38525, 39766, 41041, 44445, 53972, 57436, 60512,

22
src/short_code/short_code.h
View File

@ -21,6 +21,8 @@ public:
CommonCode to_common_code() const;
static bool check(uint32_t short_code);
// TODO: std::cout << ShortCode(...) << std::endl;
explicit ShortCode(uint32_t short_code);
explicit ShortCode(const CommonCode &common_code);
explicit ShortCode(const std::string &short_code_str);
@ -34,22 +36,34 @@ public:
speed_up(mode);
}
// TODO: mark as private after inner test
static uint64_t fast_decode(uint32_t short_code);
static uint32_t fast_encode(uint64_t common_code);
static uint64_t tiny_decode_demo(uint32_t short_code);
static uint32_t tiny_encode_demo(uint64_t common_code);
static uint64_t tiny_decode(uint32_t short_code);
static uint32_t tiny_encode(uint64_t common_code);
// TODO: ShortCode::create() / ShortCode::from_str(...) / ShortCode::from_common_code(...)
static uint32_t fast_encode_legacy(uint64_t common_code);
private:
uint32_t code;
static std::mutex map_building;
static bool fast_mode_available;
static bool normal_mode_available;
static const uint32_t SHORT_CODE_LIMIT = 29334498;
/// NOTE: using binary search instead of global vector and unordered_map
/// for some test, the new function only using < 170MB memory, while the legacy using > 1.5GB
/// but the legacy one is more easy and a little fast.
/// BTW, the new one init less than 1.2s, legacy one need about 15s
static std::vector<uint64_t> all_cases_list; // short_code -> common_code
static std::unordered_map<uint64_t, uint32_t> all_cases_dict; // common_code -> short_code
static void build_mappings();
static uint64_t tiny_decode(uint32_t short_code);
static uint32_t tiny_encode(uint64_t common_code);
// static uint64_t tiny_decode(uint32_t short_code);
// static uint32_t tiny_encode(uint64_t common_code);
};

96
src/short_code/short_code_mark.h
View File

@ -2,56 +2,56 @@
#include <cstdint>
const uint32_t ALL_CASES_INDEX[16] = {
2942906, 2260392, 2942906, 0,
2322050, 1876945, 2322050, 0,
2322050, 1876945, 2322050, 0,
2942906, 2260392, 2942906, 0,
};
//const uint32_t ALL_CASES_INDEX[16] = {
// 2942906, 2260392, 2942906, 0,
// 2322050, 1876945, 2322050, 0,
// 2322050, 1876945, 2322050, 0,
// 2942906, 2260392, 2942906, 0,
//};
const uint32_t ALL_CASES_OFFSET[16] = {
0, 2942906, 5203298, 8146204,
8146204, 10468254, 12345199, 14667249,
14667249, 16989299, 18866244, 21188294,
21188294, 24131200, 26391592, 29334498,
};
//const uint32_t ALL_CASES_OFFSET[16] = {
// 0, 2942906, 5203298, 8146204,
// 8146204, 10468254, 12345199, 14667249,
// 14667249, 16989299, 18866244, 21188294,
// 21188294, 24131200, 26391592, 29334498,
//};
const uint32_t BASIC_RANGES_INDEX[256] = {
136384, 49920, 49920, 136384, 49920, 18272, 18272, 49920,
49920, 18272, 18272, 49920, 136384, 49920, 49920, 136384,
49920, 18272, 18272, 49920, 18272, 6347, 6347, 17589,
18272, 6347, 6347, 17589, 49920, 17589, 17589, 48555,
49920, 18272, 18272, 49920, 18272, 6347, 6347, 17589,
18272, 6347, 6347, 17589, 49920, 17589, 17589, 48555,
136384, 49920, 49920, 136384, 49920, 17589, 17589, 48555,
49920, 17589, 17589, 48555, 136384, 48555, 48555, 133653,
49920, 18272, 18272, 49920, 18272, 6347, 6347, 17589,
18272, 6347, 6347, 17589, 49920, 17589, 17589, 48555,
18272, 6347, 6347, 17589, 6347, 1785, 1785, 5246,
6347, 1785, 1785, 5246, 17589, 5246, 5246, 15163,
18272, 6347, 6347, 17589, 6347, 1785, 1785, 5246,
6347, 1785, 1785, 5246, 17589, 5246, 5246, 15163,
49920, 17589, 17589, 48555, 17589, 5246, 5246, 15163,
17589, 5246, 5246, 15163, 48555, 15163, 15163, 43244,
49920, 18272, 18272, 49920, 18272, 6347, 6347, 17589,
18272, 6347, 6347, 17589, 49920, 17589, 17589, 48555,
18272, 6347, 6347, 17589, 6347, 1785, 1785, 5246,
6347, 1785, 1785, 5246, 17589, 5246, 5246, 15163,
18272, 6347, 6347, 17589, 6347, 1785, 1785, 5246,
6347, 1785, 1785, 5246, 17589, 5246, 5246, 15163,
49920, 17589, 17589, 48555, 17589, 5246, 5246, 15163,
17589, 5246, 5246, 15163, 48555, 15163, 15163, 43244,
136384, 49920, 49920, 136384, 49920, 17589, 17589, 48555,
49920, 17589, 17589, 48555, 136384, 48555, 48555, 133653,
49920, 17589, 17589, 48555, 17589, 5246, 5246, 15163,
17589, 5246, 5246, 15163, 48555, 15163, 15163, 43244,
49920, 17589, 17589, 48555, 17589, 5246, 5246, 15163,
17589, 5246, 5246, 15163, 48555, 15163, 15163, 43244,
136384, 48555, 48555, 133653, 48555, 15163, 15163, 43244,
48555, 15163, 15163, 43244, 133653, 43244, 43244, 122125,
};
//const uint32_t BASIC_RANGES_INDEX[256] = {
// 136384, 49920, 49920, 136384, 49920, 18272, 18272, 49920,
// 49920, 18272, 18272, 49920, 136384, 49920, 49920, 136384,
// 49920, 18272, 18272, 49920, 18272, 6347, 6347, 17589,
// 18272, 6347, 6347, 17589, 49920, 17589, 17589, 48555,
// 49920, 18272, 18272, 49920, 18272, 6347, 6347, 17589,
// 18272, 6347, 6347, 17589, 49920, 17589, 17589, 48555,
// 136384, 49920, 49920, 136384, 49920, 17589, 17589, 48555,
// 49920, 17589, 17589, 48555, 136384, 48555, 48555, 133653,
// 49920, 18272, 18272, 49920, 18272, 6347, 6347, 17589,
// 18272, 6347, 6347, 17589, 49920, 17589, 17589, 48555,
// 18272, 6347, 6347, 17589, 6347, 1785, 1785, 5246,
// 6347, 1785, 1785, 5246, 17589, 5246, 5246, 15163,
// 18272, 6347, 6347, 17589, 6347, 1785, 1785, 5246,
// 6347, 1785, 1785, 5246, 17589, 5246, 5246, 15163,
// 49920, 17589, 17589, 48555, 17589, 5246, 5246, 15163,
// 17589, 5246, 5246, 15163, 48555, 15163, 15163, 43244,
// 49920, 18272, 18272, 49920, 18272, 6347, 6347, 17589,
// 18272, 6347, 6347, 17589, 49920, 17589, 17589, 48555,
// 18272, 6347, 6347, 17589, 6347, 1785, 1785, 5246,
// 6347, 1785, 1785, 5246, 17589, 5246, 5246, 15163,
// 18272, 6347, 6347, 17589, 6347, 1785, 1785, 5246,
// 6347, 1785, 1785, 5246, 17589, 5246, 5246, 15163,
// 49920, 17589, 17589, 48555, 17589, 5246, 5246, 15163,
// 17589, 5246, 5246, 15163, 48555, 15163, 15163, 43244,
// 136384, 49920, 49920, 136384, 49920, 17589, 17589, 48555,
// 49920, 17589, 17589, 48555, 136384, 48555, 48555, 133653,
// 49920, 17589, 17589, 48555, 17589, 5246, 5246, 15163,
// 17589, 5246, 5246, 15163, 48555, 15163, 15163, 43244,
// 49920, 17589, 17589, 48555, 17589, 5246, 5246, 15163,
// 17589, 5246, 5246, 15163, 48555, 15163, 15163, 43244,
// 136384, 48555, 48555, 133653, 48555, 15163, 15163, 43244,
// 48555, 15163, 15163, 43244, 133653, 43244, 43244, 122125,
//};
const uint32_t BASIC_RANGES_OFFSET[256] = {
const uint32_t BASIC_RANGES_OFFSET_8bits[256] = {
0, 136384, 186304, 236224, 372608, 422528, 440800, 459072,
508992, 558912, 577184, 595456, 645376, 781760, 831680, 881600,
1017984, 1067904, 1086176, 1104448, 1154368, 1172640, 1178987, 1185334,
@ -633,7 +633,7 @@ const uint32_t RANGE_PREFIX_INDEX[16][256] = {
},
};
const uint32_t RANGE_PREFIX_OFFSET[16][256] = {
const uint32_t RANGE_PREFIX_OFFSET_8bits[16][256] = {
{
0, 70039, 70039, 95633, 165672, 191266, 200793, 210117,
235711, 258169, 258169, 267696, 290154, 360193, 360193, 385787,

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