mirror of
https://github.com/ZDoom/gzdoom-gles.git
synced 2024-11-16 17:41:19 +00:00
a4f05f5741
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. # Conflicts: # src/CMakeLists.txt # Conflicts: # src/sound/mididevices/music_adlmidi_mididevice.cpp
127 lines
3.6 KiB
C++
127 lines
3.6 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/>.
|
|
*/
|
|
|
|
#ifndef ADLMIDI_BANKMAP_H
|
|
#define ADLMIDI_BANKMAP_H
|
|
|
|
#include <list>
|
|
#include <utility>
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
|
|
#include "adlmidi_ptr.hpp"
|
|
|
|
/**
|
|
* A simple hash map which accepts bank numbers as keys, can be reserved to a
|
|
* fixed size, offers O(1) search and insertion, has a hash function to
|
|
* optimize for the worst case, and has some good cache locality properties.
|
|
*/
|
|
template <class T>
|
|
class BasicBankMap
|
|
{
|
|
public:
|
|
typedef size_t key_type; /* the bank identifier */
|
|
typedef T mapped_type;
|
|
typedef std::pair<key_type, T> value_type;
|
|
|
|
BasicBankMap();
|
|
void reserve(size_t capacity);
|
|
|
|
size_t size() const
|
|
{ return m_size; }
|
|
size_t capacity() const
|
|
{ return m_capacity; }
|
|
bool empty() const
|
|
{ return m_size == 0; }
|
|
|
|
class iterator;
|
|
iterator begin() const;
|
|
iterator end() const;
|
|
|
|
struct do_not_expand_t {};
|
|
|
|
iterator find(key_type key);
|
|
void erase(iterator it);
|
|
std::pair<iterator, bool> insert(const value_type &value);
|
|
std::pair<iterator, bool> insert(const value_type &value, do_not_expand_t);
|
|
void clear();
|
|
|
|
T &operator[](key_type key);
|
|
|
|
private:
|
|
struct Slot;
|
|
enum { minimum_allocation = 4 };
|
|
enum
|
|
{
|
|
hash_bits = 8, /* worst case # of collisions: 128^2/2^hash_bits */
|
|
hash_buckets = 1 << hash_bits
|
|
};
|
|
|
|
public:
|
|
class iterator
|
|
{
|
|
public:
|
|
iterator();
|
|
value_type &operator*() const { return slot->value; }
|
|
value_type *operator->() const { return &slot->value; }
|
|
iterator &operator++();
|
|
bool operator==(const iterator &o) const;
|
|
bool operator!=(const iterator &o) const;
|
|
void to_ptrs(void *ptrs[3]);
|
|
static iterator from_ptrs(void *const ptrs[3]);
|
|
private:
|
|
Slot **buckets;
|
|
Slot *slot;
|
|
size_t index;
|
|
iterator(Slot **buckets, Slot *slot, size_t index);
|
|
#ifdef _MSC_VER
|
|
template<class _T>
|
|
friend class BasicBankMap;
|
|
#else
|
|
friend class BasicBankMap<T>;
|
|
#endif
|
|
};
|
|
|
|
private:
|
|
struct Slot {
|
|
Slot *next, *prev;
|
|
value_type value;
|
|
Slot() : next(NULL), prev(NULL) {}
|
|
};
|
|
AdlMIDI_SPtrArray<Slot *> m_buckets;
|
|
std::list< AdlMIDI_SPtrArray<Slot> > m_allocations;
|
|
Slot *m_freeslots;
|
|
size_t m_size;
|
|
size_t m_capacity;
|
|
static size_t hash(key_type key);
|
|
Slot *allocate_slot();
|
|
Slot *ensure_allocate_slot();
|
|
void free_slot(Slot *slot);
|
|
Slot *bucket_find(size_t index, key_type key);
|
|
void bucket_add(size_t index, Slot *slot);
|
|
void bucket_remove(size_t index, Slot *slot);
|
|
};
|
|
|
|
#include "adlmidi_bankmap.tcc"
|
|
|
|
#endif // ADLMIDI_BANKMAP_H
|