mirror of
https://github.com/ZDoom/gzdoom.git
synced 2024-11-11 07:12:02 +00:00
84cc7cbdd2
This is to improve compile times because the MSVC compiler tends to become slow with large lists of source files in a single project. This new project is still our stripped down copy of libadl, not the original, because that project contains a large amount of baggage we do not need.
283 lines
6.9 KiB
C++
283 lines
6.9 KiB
C++
/*
|
|
* libADLMIDI is a free MIDI to WAV conversion library with OPL3 emulation
|
|
*
|
|
* Original ADLMIDI code: Copyright (c) 2010-2014 Joel Yliluoma <bisqwit@iki.fi>
|
|
* ADLMIDI Library API: Copyright (c) 2015-2018 Vitaly Novichkov <admin@wohlnet.ru>
|
|
*
|
|
* Library is based on the ADLMIDI, a MIDI player for Linux and Windows with OPL3 emulation:
|
|
* http://iki.fi/bisqwit/source/adlmidi.html
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "adlmidi_bankmap.h"
|
|
#include <cassert>
|
|
|
|
template <class T>
|
|
inline BasicBankMap<T>::BasicBankMap()
|
|
: m_freeslots(NULL),
|
|
m_size(0),
|
|
m_capacity(0)
|
|
{
|
|
m_buckets.reset(new Slot *[hash_buckets]());
|
|
}
|
|
|
|
template <class T>
|
|
inline size_t BasicBankMap<T>::hash(key_type key)
|
|
{
|
|
// disregard the 0 high bit in LSB
|
|
key = key_type(key & 127) | key_type((key >> 8) << 7);
|
|
// take low part as hash value
|
|
return key & (hash_buckets - 1);
|
|
}
|
|
|
|
template <class T>
|
|
void BasicBankMap<T>::reserve(size_t capacity)
|
|
{
|
|
if(m_capacity >= capacity)
|
|
return;
|
|
|
|
size_t need = capacity - m_capacity;
|
|
const size_t minalloc = static_cast<size_t>(minimum_allocation);
|
|
need = (need < minalloc) ? minalloc : need;
|
|
|
|
AdlMIDI_SPtrArray<Slot> slotz;
|
|
slotz.reset(new Slot[need]);
|
|
m_allocations.push_back(slotz);
|
|
m_capacity += need;
|
|
|
|
for(size_t i = need; i-- > 0;)
|
|
free_slot(&slotz[i]);
|
|
}
|
|
|
|
template <class T>
|
|
typename BasicBankMap<T>::iterator
|
|
BasicBankMap<T>::begin() const
|
|
{
|
|
iterator it(m_buckets.get(), NULL, 0);
|
|
while(it.index < hash_buckets && !(it.slot = m_buckets[it.index]))
|
|
++it.index;
|
|
return it;
|
|
}
|
|
|
|
template <class T>
|
|
typename BasicBankMap<T>::iterator
|
|
BasicBankMap<T>::end() const
|
|
{
|
|
iterator it(m_buckets.get(), NULL, hash_buckets);
|
|
return it;
|
|
}
|
|
|
|
template <class T>
|
|
typename BasicBankMap<T>::iterator BasicBankMap<T>::find(key_type key)
|
|
{
|
|
size_t index = hash(key);
|
|
Slot *slot = bucket_find(index, key);
|
|
if(!slot)
|
|
return end();
|
|
return iterator(m_buckets.get(), slot, index);
|
|
}
|
|
|
|
template <class T>
|
|
void BasicBankMap<T>::erase(iterator it)
|
|
{
|
|
bucket_remove(it.index, it.slot);
|
|
free_slot(it.slot);
|
|
--m_size;
|
|
}
|
|
|
|
template <class T>
|
|
inline BasicBankMap<T>::iterator::iterator()
|
|
: buckets(NULL), slot(NULL), index(0)
|
|
{
|
|
}
|
|
|
|
template <class T>
|
|
inline BasicBankMap<T>::iterator::iterator(Slot **buckets, Slot *slot, size_t index)
|
|
: buckets(buckets), slot(slot), index(index)
|
|
{
|
|
}
|
|
|
|
template <class T>
|
|
typename BasicBankMap<T>::iterator &
|
|
BasicBankMap<T>::iterator::operator++()
|
|
{
|
|
if(slot->next)
|
|
slot = slot->next;
|
|
else {
|
|
Slot *slot = NULL;
|
|
++index;
|
|
while(index < hash_buckets && !(slot = buckets[index]))
|
|
++index;
|
|
this->slot = slot;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
template <class T>
|
|
bool BasicBankMap<T>::iterator::operator==(const iterator &o) const
|
|
{
|
|
return buckets == o.buckets && slot == o.slot && index == o.index;
|
|
}
|
|
|
|
template <class T>
|
|
inline bool BasicBankMap<T>::iterator::operator!=(const iterator &o) const
|
|
{
|
|
return !operator==(o);
|
|
}
|
|
|
|
template <class T>
|
|
void BasicBankMap<T>::iterator::to_ptrs(void *ptrs[3])
|
|
{
|
|
ptrs[0] = buckets;
|
|
ptrs[1] = slot;
|
|
ptrs[2] = (void *)index;
|
|
}
|
|
|
|
template <class T>
|
|
typename BasicBankMap<T>::iterator
|
|
BasicBankMap<T>::iterator::from_ptrs(void *const ptrs[3])
|
|
{
|
|
iterator it;
|
|
it.buckets = (Slot **)ptrs[0];
|
|
it.slot = (Slot *)ptrs[1];
|
|
it.index = (size_t)ptrs[2];
|
|
return it;
|
|
}
|
|
|
|
template <class T>
|
|
std::pair<typename BasicBankMap<T>::iterator, bool>
|
|
BasicBankMap<T>::insert(const value_type &value)
|
|
{
|
|
size_t index = hash(value.first);
|
|
Slot *slot = bucket_find(index, value.first);
|
|
if(slot)
|
|
return std::make_pair(iterator(m_buckets.get(), slot, index), false);
|
|
slot = allocate_slot();
|
|
if(!slot) {
|
|
reserve(m_capacity + minimum_allocation);
|
|
slot = ensure_allocate_slot();
|
|
}
|
|
slot->value = value;
|
|
bucket_add(index, slot);
|
|
++m_size;
|
|
return std::make_pair(iterator(m_buckets.get(), slot, index), true);
|
|
}
|
|
|
|
template <class T>
|
|
std::pair<typename BasicBankMap<T>::iterator, bool>
|
|
BasicBankMap<T>::insert(const value_type &value, do_not_expand_t)
|
|
{
|
|
size_t index = hash(value.first);
|
|
Slot *slot = bucket_find(index, value.first);
|
|
if(slot)
|
|
return std::make_pair(iterator(m_buckets.get(), slot, index), false);
|
|
slot = allocate_slot();
|
|
if(!slot)
|
|
return std::make_pair(end(), false);
|
|
slot->value = value;
|
|
bucket_add(index, slot);
|
|
++m_size;
|
|
return std::make_pair(iterator(m_buckets.get(), slot, index), true);
|
|
}
|
|
|
|
template <class T>
|
|
void BasicBankMap<T>::clear()
|
|
{
|
|
for(size_t i = 0; i < hash_buckets; ++i) {
|
|
Slot *slot = m_buckets[i];
|
|
while (Slot *cur = slot) {
|
|
slot = slot->next;
|
|
free_slot(cur);
|
|
}
|
|
m_buckets[i] = NULL;
|
|
}
|
|
m_size = 0;
|
|
}
|
|
|
|
template <class T>
|
|
inline T &BasicBankMap<T>::operator[](key_type key)
|
|
{
|
|
return insert(value_type(key, T())).first->second;
|
|
}
|
|
|
|
template <class T>
|
|
typename BasicBankMap<T>::Slot *
|
|
BasicBankMap<T>::allocate_slot()
|
|
{
|
|
Slot *slot = m_freeslots;
|
|
if(!slot)
|
|
return NULL;
|
|
Slot *next = slot->next;
|
|
if(next)
|
|
next->prev = NULL;
|
|
m_freeslots = next;
|
|
return slot;
|
|
}
|
|
|
|
template <class T>
|
|
inline typename BasicBankMap<T>::Slot *
|
|
BasicBankMap<T>::ensure_allocate_slot()
|
|
{
|
|
Slot *slot = allocate_slot();
|
|
assert(slot);
|
|
return slot;
|
|
}
|
|
|
|
template <class T>
|
|
void BasicBankMap<T>::free_slot(Slot *slot)
|
|
{
|
|
Slot *next = m_freeslots;
|
|
if(next)
|
|
next->prev = slot;
|
|
slot->prev = NULL;
|
|
slot->next = next;
|
|
m_freeslots = slot;
|
|
m_freeslots->value.second = T();
|
|
}
|
|
|
|
template <class T>
|
|
typename BasicBankMap<T>::Slot *
|
|
BasicBankMap<T>::bucket_find(size_t index, key_type key)
|
|
{
|
|
Slot *slot = m_buckets[index];
|
|
while(slot && slot->value.first != key)
|
|
slot = slot->next;
|
|
return slot;
|
|
}
|
|
|
|
template <class T>
|
|
void BasicBankMap<T>::bucket_add(size_t index, Slot *slot)
|
|
{
|
|
assert(slot);
|
|
Slot *next = m_buckets[index];
|
|
if(next)
|
|
next->prev = slot;
|
|
slot->next = next;
|
|
m_buckets[index] = slot;
|
|
}
|
|
|
|
template <class T>
|
|
void BasicBankMap<T>::bucket_remove(size_t index, Slot *slot)
|
|
{
|
|
assert(slot);
|
|
Slot *prev = slot->prev;
|
|
Slot *next = slot->next;
|
|
if(!prev)
|
|
m_buckets[index] = next;
|
|
else
|
|
prev->next = next;
|
|
if(next)
|
|
next->prev = prev;
|
|
}
|