fca8fe0902
Dabs now go only into preview tiles of the shown level at every zoom, including a level 0 preview overlay that the compositor shows in place of the layer tile. The layer tiles are painted by the engine, and releasing a stroke commits history without waiting for them. Stroke opacity coverage is shared per tile across a stroke's flushes, each engine job only replays the dabs that touch its tile, and undo drops an open preview instead of painting it. Readers that need final pixels settle explicitly; the renderer no longer does. tp::Map::remove rehashed the whole table on every call, which made applying thousands of finished tiles quadratic; it now rehashes only when the table is mostly empty or full of deleted slots.
414 lines
No EOL
9.4 KiB
C++
414 lines
No EOL
9.4 KiB
C++
|
|
#pragma once
|
|
|
|
#include "Common.hpp"
|
|
#include "ContainersCommon.hpp"
|
|
|
|
namespace tp {
|
|
|
|
template <typename Key>
|
|
ualni DefaultHashFunc(SelectValueOrReference<Key> key) {
|
|
return hash(key);
|
|
}
|
|
|
|
template <
|
|
typename tKey,
|
|
typename tVal,
|
|
class tAllocator = DefaultAllocator,
|
|
ualni (*tHashFunc)(SelectValueOrReference<tKey>) = DefaultHashFunc<tKey>,
|
|
int tTableInitialSize = 4>
|
|
class Map {
|
|
|
|
enum {
|
|
MAP_PERTURB_SHIFT = 5,
|
|
MAP_MIN_SIZE = 4,
|
|
MAP_MAX_LOAD_PERCENTAGE = 66,
|
|
};
|
|
|
|
typedef SelectValueOrReference<tKey> KeyArg;
|
|
typedef SelectValueOrReference<tVal> ValArg;
|
|
|
|
public:
|
|
class Node {
|
|
friend Map;
|
|
Node(KeyArg aKey, ValArg aVal) :
|
|
key(aKey),
|
|
val(aVal) {}
|
|
|
|
public:
|
|
tKey key;
|
|
tVal val;
|
|
};
|
|
|
|
struct Idx {
|
|
alni idx = -1;
|
|
[[nodiscard]] bool isValid() const { return bool(*this); }
|
|
explicit operator bool() const { return idx != -1; }
|
|
};
|
|
|
|
private:
|
|
tAllocator mAlloc;
|
|
Node** mTable = nullptr;
|
|
ualni mNSlots = 0;
|
|
ualni mNDeleted = 0;
|
|
ualni mNEntries = 0;
|
|
|
|
private:
|
|
static constexpr halnf maxLoadFactor() { return halnf(MAP_MAX_LOAD_PERCENTAGE) / 100.f; }
|
|
|
|
inline Node** newTable(const ualni len) { return new (mAlloc.allocate(sizeof(Node*) * len)) Node*[len](); }
|
|
|
|
inline Node* newNode(KeyArg key, ValArg val) { return new (mAlloc.allocate(sizeof(Node))) Node(key, val); }
|
|
|
|
inline Node* newNodeNotConstructed() { return (Node*) mAlloc.allocate(sizeof(Node)); }
|
|
|
|
inline void deleteTable(Node** table) { mAlloc.deallocate(table); }
|
|
|
|
inline void deleteNode(Node* p) {
|
|
p->~Node();
|
|
mAlloc.deallocate(p);
|
|
}
|
|
|
|
void markDeletedSlot(ualni idx) const { mTable[idx] = (Node*) -1; }
|
|
|
|
static bool isDeletedNode(Node* node) { return node == (Node*) -1; }
|
|
|
|
void rehash() {
|
|
alni nSlotsOld = mNSlots;
|
|
Node** tableOld = mTable;
|
|
|
|
mNSlots = next2pow((uhalni) ((1.f / (maxLoadFactor())) * mNEntries + 1));
|
|
mTable = newTable(mNSlots);
|
|
mNEntries = 0;
|
|
mNDeleted = 0;
|
|
|
|
for (alni i = 0; i < nSlotsOld; i++) {
|
|
if (!tableOld[i] || isDeletedNode(tableOld[i])) {
|
|
continue;
|
|
}
|
|
|
|
alni idx = findSlotWrite(tableOld[i]->key);
|
|
mTable[idx] = tableOld[i];
|
|
mNEntries++;
|
|
}
|
|
|
|
deleteTable(tableOld);
|
|
}
|
|
|
|
alni findSlotRead(KeyArg key) const {
|
|
ualni const hashed_key = tHashFunc(key);
|
|
ualni const mask = mNSlots - 1;
|
|
ualni const shift = (hashed_key >> MAP_PERTURB_SHIFT) & ~1;
|
|
alni idx = hashed_key & mask;
|
|
NEXT:
|
|
if (isDeletedNode(mTable[idx])) {
|
|
goto SKIP;
|
|
}
|
|
if (!mTable[idx]) {
|
|
return -1;
|
|
}
|
|
if (mTable[idx]->key == key) {
|
|
return idx;
|
|
}
|
|
SKIP:
|
|
idx = ((5 * idx) + 1 + shift) & mask;
|
|
goto NEXT;
|
|
}
|
|
|
|
// compares keys only when collisions occur
|
|
alni findSlotReadExisting(KeyArg key) const {
|
|
ualni const hashed_key = tHashFunc(key);
|
|
ualni const mask = mNSlots - 1;
|
|
ualni const shift = (hashed_key >> MAP_PERTURB_SHIFT) & ~1;
|
|
alni idx = hashed_key & mask;
|
|
NEXT:
|
|
if (isDeletedNode(mTable[idx])) {
|
|
goto SKIP;
|
|
}
|
|
if (!mTable[idx]) {
|
|
return -1;
|
|
}
|
|
if (mTable[((5 * idx) + 1 + shift) & mask] == nullptr) {
|
|
return idx;
|
|
}
|
|
if (mTable[idx]->key == key) {
|
|
return idx;
|
|
}
|
|
SKIP:
|
|
idx = ((5 * idx) + 1 + shift) & mask;
|
|
goto NEXT;
|
|
}
|
|
|
|
ualni findSlotWrite(KeyArg key) const {
|
|
ualni const hashed_key = tHashFunc(key);
|
|
ualni const mask = mNSlots - 1;
|
|
ualni const shift = (hashed_key >> MAP_PERTURB_SHIFT) & ~1;
|
|
ualni idx = hashed_key & mask;
|
|
alni reusable = -1;
|
|
NEXT:
|
|
if (!mTable[idx]) {
|
|
return reusable >= 0 ? (ualni) reusable : idx;
|
|
}
|
|
if (isDeletedNode(mTable[idx])) {
|
|
if (reusable < 0) reusable = (alni) idx;
|
|
} else if (mTable[idx]->key == key) {
|
|
return idx;
|
|
}
|
|
idx = ((5 * idx) + 1 + shift) & mask;
|
|
goto NEXT;
|
|
}
|
|
|
|
void occupy(ualni idx) {
|
|
if (isDeletedNode(mTable[idx])) mNDeleted--;
|
|
mNEntries++;
|
|
}
|
|
|
|
[[nodiscard]] bool overloaded() const { return (halnf) (mNEntries + mNDeleted) / mNSlots > maxLoadFactor(); }
|
|
|
|
void put(Node* node) {
|
|
const ualni idx = findSlotWrite(node->key);
|
|
|
|
if (!mTable[idx] || isDeletedNode(mTable[idx])) {
|
|
occupy(idx);
|
|
}
|
|
|
|
mTable[idx] = node;
|
|
|
|
if (overloaded()) {
|
|
rehash();
|
|
}
|
|
}
|
|
|
|
public:
|
|
Map() {
|
|
mNSlots = next2pow(uhalni(tTableInitialSize - 1));
|
|
mTable = newTable(mNSlots);
|
|
}
|
|
|
|
Map(const Map& in) { this->operator=(in); }
|
|
|
|
Node** buff() const { return mTable; }
|
|
|
|
[[nodiscard]] ualni size() const { return mNEntries; }
|
|
|
|
[[nodiscard]] ualni slotsSize() const { return mNEntries; }
|
|
|
|
[[nodiscard]] const tAllocator& getAllocator() const { return mAlloc; }
|
|
|
|
void put(KeyArg key, ValArg val) {
|
|
const ualni idx = findSlotWrite(key);
|
|
if (!mTable[idx] || isDeletedNode(mTable[idx])) {
|
|
occupy(idx);
|
|
mTable[idx] = newNode(key, val);
|
|
} else {
|
|
mTable[idx]->val = val;
|
|
}
|
|
if (overloaded()) {
|
|
rehash();
|
|
}
|
|
}
|
|
|
|
// undefined behavior if item is not presents
|
|
tVal& get(KeyArg key) {
|
|
DEBUG_ASSERT(findSlotRead(key) != -1 && "Key Error")
|
|
return mTable[findSlotReadExisting(key)]->val;
|
|
}
|
|
|
|
const tVal& get(KeyArg key) const {
|
|
DEBUG_ASSERT(findSlotRead(key) != -1 && "Key Error")
|
|
return mTable[findSlotReadExisting(key)]->val;
|
|
}
|
|
|
|
[[nodiscard]] Idx presents(KeyArg key) const { return { findSlotRead(key) }; }
|
|
|
|
void remove(KeyArg key) {
|
|
DEBUG_ASSERT(findSlotRead(key) != -1 && "Key Error")
|
|
auto idx = findSlotReadExisting(key);
|
|
|
|
deleteNode(mTable[idx]);
|
|
|
|
markDeletedSlot(idx);
|
|
|
|
mNEntries--;
|
|
mNDeleted++;
|
|
const bool sparse = mNSlots > MAP_MIN_SIZE * 4 && (halnf) mNEntries < (halnf) mNSlots * maxLoadFactor() * 0.25f;
|
|
if (sparse || overloaded()) {
|
|
rehash();
|
|
}
|
|
}
|
|
|
|
const tVal& getSlotVal(ualni slot) const {
|
|
DEBUG_ASSERT(slot < mNSlots && (mTable[slot] && !isDeletedNode(mTable[slot])) && "Key Error")
|
|
return mTable[slot]->val;
|
|
}
|
|
|
|
tVal& operator[](KeyArg key) {
|
|
auto idx = presents(key);
|
|
if (idx.isValid()) return getSlotVal(idx);
|
|
put(key, {});
|
|
return get(key);
|
|
}
|
|
|
|
tVal& getSlotVal(ualni slot) {
|
|
DEBUG_ASSERT(slot < mNSlots && (mTable[slot] && !isDeletedNode(mTable[slot])) && "Key Error")
|
|
return mTable[slot]->val;
|
|
}
|
|
|
|
const tVal& getSlotVal(Idx slot) const {
|
|
DEBUG_ASSERT(slot.idx < mNSlots && (mTable[slot.idx] && !isDeletedNode(mTable[slot.idx])) && "Key Error")
|
|
return mTable[slot.idx]->val;
|
|
}
|
|
|
|
tVal& getSlotVal(Idx slot) {
|
|
DEBUG_ASSERT(slot.idx < mNSlots && (mTable[slot.idx] && !isDeletedNode(mTable[slot.idx])) && "Key Error")
|
|
return mTable[slot.idx]->val;
|
|
}
|
|
|
|
Map& operator=(const Map& in) {
|
|
if (this == &in) {
|
|
return *this;
|
|
}
|
|
|
|
for (ualni i = 0; i < mNSlots; i++) {
|
|
if (mTable[i] && !isDeletedNode(mTable[i])) {
|
|
deleteNode(mTable[i]);
|
|
}
|
|
}
|
|
mNEntries = 0;
|
|
mNDeleted = 0;
|
|
mNSlots = in.mNSlots;
|
|
deleteTable(mTable);
|
|
mTable = newTable(mNSlots);
|
|
for (alni i = 0; i < mNSlots; i++) {
|
|
if (in.mTable[i] && !isDeletedNode(in.mTable[i])) {
|
|
put(in.mTable[i]->key, in.mTable[i]->val);
|
|
}
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
[[nodiscard]] bool operator==(const Map& in) const {
|
|
if (this == &in) {
|
|
return true;
|
|
}
|
|
if (in.mNEntries != mNEntries) {
|
|
return false;
|
|
}
|
|
for (auto i : in) {
|
|
if (!presents(i->key) || get(i->key) != i->val) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void removeAll() {
|
|
for (ualni i = 0; i < mNSlots; i++) {
|
|
if (mTable[i] && !isDeletedNode(mTable[i])) {
|
|
deleteNode(mTable[i]);
|
|
}
|
|
}
|
|
deleteTable(mTable);
|
|
mTable = newTable(tTableInitialSize);
|
|
mNSlots = tTableInitialSize;
|
|
mNEntries = 0;
|
|
mNDeleted = 0;
|
|
}
|
|
|
|
[[nodiscard]] alni slotIdx(alni entry_idx_in) const {
|
|
alni entry_idx = -1;
|
|
for (alni slot_idx = 0; slot_idx < mNSlots; slot_idx++) {
|
|
if (mTable[slot_idx]) {
|
|
entry_idx++;
|
|
}
|
|
if (entry_idx == entry_idx_in) {
|
|
return slot_idx;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
Node* GetEntry(ualni idx) {
|
|
auto slot = slotIdx(idx);
|
|
DEBUG_ASSERT(slot != -1 && "Key error")
|
|
return mTable[slot];
|
|
}
|
|
|
|
const Node* GetEntry(ualni idx) const {
|
|
auto slot = slotIdx(idx);
|
|
DEBUG_ASSERT(slot != -1 && "Key error")
|
|
return mTable[slot];
|
|
}
|
|
|
|
public:
|
|
class Iterator {
|
|
const Map* map;
|
|
Node* mIter;
|
|
alni mSlot;
|
|
alni mEntry;
|
|
|
|
friend Map;
|
|
explicit Iterator(const Map* _map) {
|
|
mSlot = -1;
|
|
mEntry = -1;
|
|
map = _map;
|
|
this->operator++();
|
|
}
|
|
|
|
public:
|
|
Node* operator->() { return mIter; }
|
|
const Node* operator->() const { return mIter; }
|
|
const Iterator& operator*() const { return *this; }
|
|
|
|
bool operator!=(ualni idx) const { return mSlot != (alni) idx; }
|
|
|
|
void operator++() {
|
|
mSlot++;
|
|
while (mSlot < (alni) map->mNSlots && (map->isDeletedNode(map->mTable[mSlot]) || !map->mTable[mSlot])) {
|
|
mSlot++;
|
|
}
|
|
if (mSlot < (alni) map->mNSlots) {
|
|
mIter = map->mTable[mSlot];
|
|
mEntry++;
|
|
} else {
|
|
mIter = nullptr;
|
|
}
|
|
}
|
|
};
|
|
|
|
[[nodiscard]] Iterator begin() const { return Iterator(this); }
|
|
|
|
[[nodiscard]] ualni end() const { return mNSlots; }
|
|
|
|
template <class Archiver>
|
|
void archiveWrite(Archiver& ar) const {
|
|
ar << mNEntries;
|
|
for (auto item : *this) {
|
|
ar << item->val;
|
|
ar << item->key;
|
|
}
|
|
}
|
|
|
|
template <class Archiver>
|
|
void archiveRead(Archiver& ar) {
|
|
removeAll();
|
|
decltype(mNSlots) len;
|
|
ar >> len;
|
|
for (auto i = len; i; i--) {
|
|
auto node = newNodeNotConstructed();
|
|
ar >> node->val;
|
|
ar >> node->key;
|
|
put(node);
|
|
}
|
|
}
|
|
|
|
~Map() {
|
|
for (ualni i = 0; i < mNSlots; i++) {
|
|
if (mTable[i] && !isDeletedNode(mTable[i])) {
|
|
deleteNode(mTable[i]);
|
|
}
|
|
}
|
|
deleteTable(mTable);
|
|
}
|
|
};
|
|
} |