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virtualx-engine/thirdparty/basis_universal/transcoder/basisu_containers.h

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basis_universal: Update to upstream commit from Apr 16, 2021 BinomialLLC/basis_universal@ba1c3e40f1d434ebaf9a167b44e9b11d2bf0f765.
2021-05-07 17:00:41 +02:00
// basisu_containers.h
#pragma once
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <assert.h>
#include <algorithm>
#if defined(__linux__) && !defined(ANDROID)
// Only for malloc_usable_size() in basisu_containers_impl.h
#include <malloc.h>
#define HAS_MALLOC_USABLE_SIZE 1
#endif
Update basis universal to version 1.16.3. Enable basis universal uastc internal storage instead of etc1s for better quality.
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// Set to 1 to always check vector operator[], front(), and back() even in release.
#define BASISU_VECTOR_FORCE_CHECKING 0
// If 1, the vector container will not query the CRT to get the size of resized memory blocks.
#define BASISU_VECTOR_DETERMINISTIC 1
basis_universal: Update to upstream commit from Apr 16, 2021 BinomialLLC/basis_universal@ba1c3e40f1d434ebaf9a167b44e9b11d2bf0f765.
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#ifdef _MSC_VER
#define BASISU_FORCE_INLINE __forceinline
#else
#define BASISU_FORCE_INLINE inline
#endif
namespace basisu
{
enum { cInvalidIndex = -1 };
namespace helpers
{
inline bool is_power_of_2(uint32_t x) { return x && ((x & (x - 1U)) == 0U); }
inline bool is_power_of_2(uint64_t x) { return x && ((x & (x - 1U)) == 0U); }
template<class T> const T& minimum(const T& a, const T& b) { return (b < a) ? b : a; }
template<class T> const T& maximum(const T& a, const T& b) { return (a < b) ? b : a; }
inline uint32_t floor_log2i(uint32_t v)
{
uint32_t l = 0;
while (v > 1U)
{
v >>= 1;
l++;
}
return l;
}
inline uint32_t next_pow2(uint32_t val)
{
val--;
val |= val >> 16;
val |= val >> 8;
val |= val >> 4;
val |= val >> 2;
val |= val >> 1;
return val + 1;
}
inline uint64_t next_pow2(uint64_t val)
{
val--;
val |= val >> 32;
val |= val >> 16;
val |= val >> 8;
val |= val >> 4;
val |= val >> 2;
val |= val >> 1;
return val + 1;
}
} // namespace helpers
template <typename T>
inline T* construct(T* p)
{
return new (static_cast<void*>(p)) T;
}
template <typename T, typename U>
inline T* construct(T* p, const U& init)
{
return new (static_cast<void*>(p)) T(init);
}
template <typename T>
inline void construct_array(T* p, size_t n)
{
T* q = p + n;
for (; p != q; ++p)
new (static_cast<void*>(p)) T;
}
template <typename T, typename U>
inline void construct_array(T* p, size_t n, const U& init)
{
T* q = p + n;
for (; p != q; ++p)
new (static_cast<void*>(p)) T(init);
}
template <typename T>
inline void destruct(T* p)
{
(void)p;
p->~T();
}
template <typename T> inline void destruct_array(T* p, size_t n)
{
T* q = p + n;
for (; p != q; ++p)
p->~T();
}
template<typename T> struct int_traits { enum { cMin = INT32_MIN, cMax = INT32_MAX, cSigned = true }; };
template<> struct int_traits<int8_t> { enum { cMin = INT8_MIN, cMax = INT8_MAX, cSigned = true }; };
template<> struct int_traits<int16_t> { enum { cMin = INT16_MIN, cMax = INT16_MAX, cSigned = true }; };
template<> struct int_traits<int32_t> { enum { cMin = INT32_MIN, cMax = INT32_MAX, cSigned = true }; };
template<> struct int_traits<uint8_t> { enum { cMin = 0, cMax = UINT8_MAX, cSigned = false }; };
template<> struct int_traits<uint16_t> { enum { cMin = 0, cMax = UINT16_MAX, cSigned = false }; };
template<> struct int_traits<uint32_t> { enum { cMin = 0, cMax = UINT32_MAX, cSigned = false }; };
template<typename T>
struct scalar_type
{
enum { cFlag = false };
static inline void construct(T* p) { basisu::construct(p); }
static inline void construct(T* p, const T& init) { basisu::construct(p, init); }
static inline void construct_array(T* p, size_t n) { basisu::construct_array(p, n); }
static inline void destruct(T* p) { basisu::destruct(p); }
static inline void destruct_array(T* p, size_t n) { basisu::destruct_array(p, n); }
};
template<typename T> struct scalar_type<T*>
{
enum { cFlag = true };
static inline void construct(T** p) { memset(p, 0, sizeof(T*)); }
static inline void construct(T** p, T* init) { *p = init; }
static inline void construct_array(T** p, size_t n) { memset(p, 0, sizeof(T*) * n); }
static inline void destruct(T** p) { p; }
static inline void destruct_array(T** p, size_t n) { p, n; }
};
#define BASISU_DEFINE_BUILT_IN_TYPE(X) \
template<> struct scalar_type<X> { \
enum { cFlag = true }; \
static inline void construct(X* p) { memset(p, 0, sizeof(X)); } \
static inline void construct(X* p, const X& init) { memcpy(p, &init, sizeof(X)); } \
static inline void construct_array(X* p, size_t n) { memset(p, 0, sizeof(X) * n); } \
static inline void destruct(X* p) { p; } \
static inline void destruct_array(X* p, size_t n) { p, n; } };
BASISU_DEFINE_BUILT_IN_TYPE(bool)
BASISU_DEFINE_BUILT_IN_TYPE(char)
BASISU_DEFINE_BUILT_IN_TYPE(unsigned char)
BASISU_DEFINE_BUILT_IN_TYPE(short)
BASISU_DEFINE_BUILT_IN_TYPE(unsigned short)
BASISU_DEFINE_BUILT_IN_TYPE(int)
BASISU_DEFINE_BUILT_IN_TYPE(unsigned int)
BASISU_DEFINE_BUILT_IN_TYPE(long)
BASISU_DEFINE_BUILT_IN_TYPE(unsigned long)
#ifdef __GNUC__
BASISU_DEFINE_BUILT_IN_TYPE(long long)
BASISU_DEFINE_BUILT_IN_TYPE(unsigned long long)
#else
BASISU_DEFINE_BUILT_IN_TYPE(__int64)
BASISU_DEFINE_BUILT_IN_TYPE(unsigned __int64)
#endif
BASISU_DEFINE_BUILT_IN_TYPE(float)
BASISU_DEFINE_BUILT_IN_TYPE(double)
BASISU_DEFINE_BUILT_IN_TYPE(long double)
#undef BASISU_DEFINE_BUILT_IN_TYPE
template<typename T>
struct bitwise_movable { enum { cFlag = false }; };
#define BASISU_DEFINE_BITWISE_MOVABLE(Q) template<> struct bitwise_movable<Q> { enum { cFlag = true }; };
template<typename T>
struct bitwise_copyable { enum { cFlag = false }; };
#define BASISU_DEFINE_BITWISE_COPYABLE(Q) template<> struct bitwise_copyable<Q> { enum { cFlag = true }; };
#define BASISU_IS_POD(T) __is_pod(T)
#define BASISU_IS_SCALAR_TYPE(T) (scalar_type<T>::cFlag)
#if defined(__GNUC__) && __GNUC__<5
#define BASISU_IS_TRIVIALLY_COPYABLE(...) __has_trivial_copy(__VA_ARGS__)
#else
#define BASISU_IS_TRIVIALLY_COPYABLE(...) std::is_trivially_copyable<__VA_ARGS__>::value
#endif
// TODO: clean this up
#define BASISU_IS_BITWISE_COPYABLE(T) (BASISU_IS_SCALAR_TYPE(T) || BASISU_IS_POD(T) || BASISU_IS_TRIVIALLY_COPYABLE(T) || (bitwise_copyable<T>::cFlag))
#define BASISU_IS_BITWISE_COPYABLE_OR_MOVABLE(T) (BASISU_IS_BITWISE_COPYABLE(T) || (bitwise_movable<T>::cFlag))
#define BASISU_HAS_DESTRUCTOR(T) ((!scalar_type<T>::cFlag) && (!__is_pod(T)))
typedef char(&yes_t)[1];
typedef char(&no_t)[2];
template <class U> yes_t class_test(int U::*);
template <class U> no_t class_test(...);
template <class T> struct is_class
{
enum { value = (sizeof(class_test<T>(0)) == sizeof(yes_t)) };
};
template <typename T> struct is_pointer
{
enum { value = false };
};
template <typename T> struct is_pointer<T*>
{
enum { value = true };
};
struct empty_type { };
BASISU_DEFINE_BITWISE_COPYABLE(empty_type);
BASISU_DEFINE_BITWISE_MOVABLE(empty_type);
template<typename T> struct rel_ops
{
friend bool operator!=(const T& x, const T& y) { return (!(x == y)); }
friend bool operator> (const T& x, const T& y) { return (y < x); }
friend bool operator<=(const T& x, const T& y) { return (!(y < x)); }
friend bool operator>=(const T& x, const T& y) { return (!(x < y)); }
};
struct elemental_vector
{
void* m_p;
uint32_t m_size;
uint32_t m_capacity;
typedef void (*object_mover)(void* pDst, void* pSrc, uint32_t num);
bool increase_capacity(uint32_t min_new_capacity, bool grow_hint, uint32_t element_size, object_mover pRelocate, bool nofail);
};
template<typename T>
class vector : public rel_ops< vector<T> >
{
public:
typedef T* iterator;
typedef const T* const_iterator;
typedef T value_type;
typedef T& reference;
typedef const T& const_reference;
typedef T* pointer;
typedef const T* const_pointer;
inline vector() :
m_p(NULL),
m_size(0),
m_capacity(0)
{
}
inline vector(uint32_t n, const T& init) :
m_p(NULL),
m_size(0),
m_capacity(0)
{
increase_capacity(n, false);
construct_array(m_p, n, init);
m_size = n;
}
inline vector(const vector& other) :
m_p(NULL),
m_size(0),
m_capacity(0)
{
increase_capacity(other.m_size, false);
m_size = other.m_size;
if (BASISU_IS_BITWISE_COPYABLE(T))
Update basis universal to version 1.16.3. Enable basis universal uastc internal storage instead of etc1s for better quality.
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{
if ((m_p) && (other.m_p))
memcpy(m_p, other.m_p, m_size * sizeof(T));
}
basis_universal: Update to upstream commit from Apr 16, 2021 BinomialLLC/basis_universal@ba1c3e40f1d434ebaf9a167b44e9b11d2bf0f765.
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else
{
T* pDst = m_p;
const T* pSrc = other.m_p;
for (uint32_t i = m_size; i > 0; i--)
construct(pDst++, *pSrc++);
}
}
inline explicit vector(size_t size) :
m_p(NULL),
m_size(0),
m_capacity(0)
{
resize(size);
}
inline ~vector()
{
if (m_p)
{
scalar_type<T>::destruct_array(m_p, m_size);
free(m_p);
}
}
inline vector& operator= (const vector& other)
{
if (this == &other)
return *this;
if (m_capacity >= other.m_size)
resize(0);
else
{
clear();
increase_capacity(other.m_size, false);
}
if (BASISU_IS_BITWISE_COPYABLE(T))
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{
if ((m_p) && (other.m_p))
memcpy(m_p, other.m_p, other.m_size * sizeof(T));
}
basis_universal: Update to upstream commit from Apr 16, 2021 BinomialLLC/basis_universal@ba1c3e40f1d434ebaf9a167b44e9b11d2bf0f765.
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else
{
T* pDst = m_p;
const T* pSrc = other.m_p;
for (uint32_t i = other.m_size; i > 0; i--)
construct(pDst++, *pSrc++);
}
m_size = other.m_size;
return *this;
}
BASISU_FORCE_INLINE const T* begin() const { return m_p; }
BASISU_FORCE_INLINE T* begin() { return m_p; }
BASISU_FORCE_INLINE const T* end() const { return m_p + m_size; }
BASISU_FORCE_INLINE T* end() { return m_p + m_size; }
BASISU_FORCE_INLINE bool empty() const { return !m_size; }
BASISU_FORCE_INLINE uint32_t size() const { return m_size; }
BASISU_FORCE_INLINE uint32_t size_in_bytes() const { return m_size * sizeof(T); }
BASISU_FORCE_INLINE uint32_t capacity() const { return m_capacity; }
// operator[] will assert on out of range indices, but in final builds there is (and will never be) any range checking on this method.
//BASISU_FORCE_INLINE const T& operator[] (uint32_t i) const { assert(i < m_size); return m_p[i]; }
//BASISU_FORCE_INLINE T& operator[] (uint32_t i) { assert(i < m_size); return m_p[i]; }
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#if !BASISU_VECTOR_FORCE_CHECKING
basis_universal: Update to upstream commit from Apr 16, 2021 BinomialLLC/basis_universal@ba1c3e40f1d434ebaf9a167b44e9b11d2bf0f765.
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BASISU_FORCE_INLINE const T& operator[] (size_t i) const { assert(i < m_size); return m_p[i]; }
BASISU_FORCE_INLINE T& operator[] (size_t i) { assert(i < m_size); return m_p[i]; }
Update basis universal to version 1.16.3. Enable basis universal uastc internal storage instead of etc1s for better quality.
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#else
BASISU_FORCE_INLINE const T& operator[] (size_t i) const
{
if (i >= m_size)
{
fprintf(stderr, "operator[] invalid index: %u, max entries %u, type size %u\n", (uint32_t)i, m_size, (uint32_t)sizeof(T));
abort();
}
return m_p[i];
}
BASISU_FORCE_INLINE T& operator[] (size_t i)
{
if (i >= m_size)
{
fprintf(stderr, "operator[] invalid index: %u, max entries %u, type size %u\n", (uint32_t)i, m_size, (uint32_t)sizeof(T));
abort();
}
return m_p[i];
}
#endif
basis_universal: Update to upstream commit from Apr 16, 2021 BinomialLLC/basis_universal@ba1c3e40f1d434ebaf9a167b44e9b11d2bf0f765.
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// at() always includes range checking, even in final builds, unlike operator [].
// The first element is returned if the index is out of range.
BASISU_FORCE_INLINE const T& at(size_t i) const { assert(i < m_size); return (i >= m_size) ? m_p[0] : m_p[i]; }
BASISU_FORCE_INLINE T& at(size_t i) { assert(i < m_size); return (i >= m_size) ? m_p[0] : m_p[i]; }
Update basis universal to version 1.16.3. Enable basis universal uastc internal storage instead of etc1s for better quality.
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#if !BASISU_VECTOR_FORCE_CHECKING
basis_universal: Update to upstream commit from Apr 16, 2021 BinomialLLC/basis_universal@ba1c3e40f1d434ebaf9a167b44e9b11d2bf0f765.
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BASISU_FORCE_INLINE const T& front() const { assert(m_size); return m_p[0]; }
BASISU_FORCE_INLINE T& front() { assert(m_size); return m_p[0]; }
BASISU_FORCE_INLINE const T& back() const { assert(m_size); return m_p[m_size - 1]; }
BASISU_FORCE_INLINE T& back() { assert(m_size); return m_p[m_size - 1]; }
Update basis universal to version 1.16.3. Enable basis universal uastc internal storage instead of etc1s for better quality.
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#else
BASISU_FORCE_INLINE const T& front() const
{
if (!m_size)
{
fprintf(stderr, "front: vector is empty, type size %u\n", (uint32_t)sizeof(T));
abort();
}
return m_p[0];
}
BASISU_FORCE_INLINE T& front()
{
if (!m_size)
{
fprintf(stderr, "front: vector is empty, type size %u\n", (uint32_t)sizeof(T));
abort();
}
return m_p[0];
}
BASISU_FORCE_INLINE const T& back() const
{
if(!m_size)
{
fprintf(stderr, "back: vector is empty, type size %u\n", (uint32_t)sizeof(T));
abort();
}
return m_p[m_size - 1];
}
BASISU_FORCE_INLINE T& back()
{
if (!m_size)
{
fprintf(stderr, "back: vector is empty, type size %u\n", (uint32_t)sizeof(T));
abort();
}
return m_p[m_size - 1];
}
#endif
basis_universal: Update to upstream commit from Apr 16, 2021 BinomialLLC/basis_universal@ba1c3e40f1d434ebaf9a167b44e9b11d2bf0f765.
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BASISU_FORCE_INLINE const T* get_ptr() const { return m_p; }
BASISU_FORCE_INLINE T* get_ptr() { return m_p; }
BASISU_FORCE_INLINE const T* data() const { return m_p; }
BASISU_FORCE_INLINE T* data() { return m_p; }
// clear() sets the container to empty, then frees the allocated block.
inline void clear()
{
if (m_p)
{
scalar_type<T>::destruct_array(m_p, m_size);
free(m_p);
m_p = NULL;
m_size = 0;
m_capacity = 0;
}
}
inline void clear_no_destruction()
{
if (m_p)
{
free(m_p);
m_p = NULL;
m_size = 0;
m_capacity = 0;
}
}
inline void reserve(size_t new_capacity_size_t)
{
if (new_capacity_size_t > UINT32_MAX)
{
assert(0);
return;
}
uint32_t new_capacity = (uint32_t)new_capacity_size_t;
if (new_capacity > m_capacity)
increase_capacity(new_capacity, false);
else if (new_capacity < m_capacity)
{
// Must work around the lack of a "decrease_capacity()" method.
// This case is rare enough in practice that it's probably not worth implementing an optimized in-place resize.
vector tmp;
tmp.increase_capacity(helpers::maximum(m_size, new_capacity), false);
tmp = *this;
swap(tmp);
}
}
inline bool try_reserve(size_t new_capacity_size_t)
{
if (new_capacity_size_t > UINT32_MAX)
{
assert(0);
return false;
}
uint32_t new_capacity = (uint32_t)new_capacity_size_t;
if (new_capacity > m_capacity)
{
if (!increase_capacity(new_capacity, false))
return false;
}
else if (new_capacity < m_capacity)
{
// Must work around the lack of a "decrease_capacity()" method.
// This case is rare enough in practice that it's probably not worth implementing an optimized in-place resize.
vector tmp;
tmp.increase_capacity(helpers::maximum(m_size, new_capacity), false);
tmp = *this;
swap(tmp);
}
return true;
}
// resize(0) sets the container to empty, but does not free the allocated block.
inline void resize(size_t new_size_size_t, bool grow_hint = false)
{
if (new_size_size_t > UINT32_MAX)
{
assert(0);
return;
}
uint32_t new_size = (uint32_t)new_size_size_t;
if (m_size != new_size)
{
if (new_size < m_size)
scalar_type<T>::destruct_array(m_p + new_size, m_size - new_size);
else
{
if (new_size > m_capacity)
increase_capacity(new_size, (new_size == (m_size + 1)) || grow_hint);
scalar_type<T>::construct_array(m_p + m_size, new_size - m_size);
}
m_size = new_size;
}
}
inline bool try_resize(size_t new_size_size_t, bool grow_hint = false)
{
if (new_size_size_t > UINT32_MAX)
{
assert(0);
return false;
}
uint32_t new_size = (uint32_t)new_size_size_t;
if (m_size != new_size)
{
if (new_size < m_size)
scalar_type<T>::destruct_array(m_p + new_size, m_size - new_size);
else
{
if (new_size > m_capacity)
{
if (!increase_capacity(new_size, (new_size == (m_size + 1)) || grow_hint, true))
return false;
}
scalar_type<T>::construct_array(m_p + m_size, new_size - m_size);
}
m_size = new_size;
}
return true;
}
// If size >= capacity/2, reset() sets the container's size to 0 but doesn't free the allocated block (because the container may be similarly loaded in the future).
// Otherwise it blows away the allocated block. See http://www.codercorner.com/blog/?p=494
inline void reset()
{
if (m_size >= (m_capacity >> 1))
resize(0);
else
clear();
}
inline T* enlarge(uint32_t i)
{
uint32_t cur_size = m_size;
resize(cur_size + i, true);
return get_ptr() + cur_size;
}
inline T* try_enlarge(uint32_t i)
{
uint32_t cur_size = m_size;
if (!try_resize(cur_size + i, true))
return NULL;
return get_ptr() + cur_size;
}
BASISU_FORCE_INLINE void push_back(const T& obj)
{
assert(!m_p || (&obj < m_p) || (&obj >= (m_p + m_size)));
if (m_size >= m_capacity)
increase_capacity(m_size + 1, true);
scalar_type<T>::construct(m_p + m_size, obj);
m_size++;
}
inline bool try_push_back(const T& obj)
{
assert(!m_p || (&obj < m_p) || (&obj >= (m_p + m_size)));
if (m_size >= m_capacity)
{
if (!increase_capacity(m_size + 1, true, true))
return false;
}
scalar_type<T>::construct(m_p + m_size, obj);
m_size++;
return true;
}
inline void push_back_value(T obj)
{
if (m_size >= m_capacity)
increase_capacity(m_size + 1, true);
scalar_type<T>::construct(m_p + m_size, obj);
m_size++;
}
inline void pop_back()
{
assert(m_size);
if (m_size)
{
m_size--;
scalar_type<T>::destruct(&m_p[m_size]);
}
}
inline void insert(uint32_t index, const T* p, uint32_t n)
{
assert(index <= m_size);
if (!n)
return;
const uint32_t orig_size = m_size;
resize(m_size + n, true);
const uint32_t num_to_move = orig_size - index;
if (BASISU_IS_BITWISE_COPYABLE(T))
{
// This overwrites the destination object bits, but bitwise copyable means we don't need to worry about destruction.
memmove(m_p + index + n, m_p + index, sizeof(T) * num_to_move);
}
else
{
const T* pSrc = m_p + orig_size - 1;
T* pDst = const_cast<T*>(pSrc) + n;
for (uint32_t i = 0; i < num_to_move; i++)
{
assert((pDst - m_p) < (int)m_size);
*pDst-- = *pSrc--;
}
}
T* pDst = m_p + index;
if (BASISU_IS_BITWISE_COPYABLE(T))
{
// This copies in the new bits, overwriting the existing objects, which is OK for copyable types that don't need destruction.
memcpy(pDst, p, sizeof(T) * n);
}
else
{
for (uint32_t i = 0; i < n; i++)
{
assert((pDst - m_p) < (int)m_size);
*pDst++ = *p++;
}
}
}
inline void insert(T* p, const T& obj)
{
int64_t ofs = p - begin();
if ((ofs < 0) || (ofs > UINT32_MAX))
{
assert(0);
return;
}
insert((uint32_t)ofs, &obj, 1);
}
// push_front() isn't going to be very fast - it's only here for usability.
inline void push_front(const T& obj)
{
insert(0, &obj, 1);
}
vector& append(const vector& other)
{
if (other.m_size)
insert(m_size, &other[0], other.m_size);
return *this;
}
vector& append(const T* p, uint32_t n)
{
if (n)
insert(m_size, p, n);
return *this;
}
inline void erase(uint32_t start, uint32_t n)
{
assert((start + n) <= m_size);
if ((start + n) > m_size)
return;
if (!n)
return;
const uint32_t num_to_move = m_size - (start + n);
T* pDst = m_p + start;
const T* pSrc = m_p + start + n;
if (BASISU_IS_BITWISE_COPYABLE_OR_MOVABLE(T))
{
// This test is overly cautious.
if ((!BASISU_IS_BITWISE_COPYABLE(T)) || (BASISU_HAS_DESTRUCTOR(T)))
{
// Type has been marked explictly as bitwise movable, which means we can move them around but they may need to be destructed.
// First destroy the erased objects.
scalar_type<T>::destruct_array(pDst, n);
}
// Copy "down" the objects to preserve, filling in the empty slots.
memmove(pDst, pSrc, num_to_move * sizeof(T));
}
else
{
// Type is not bitwise copyable or movable.
// Move them down one at a time by using the equals operator, and destroying anything that's left over at the end.
T* pDst_end = pDst + num_to_move;
while (pDst != pDst_end)
*pDst++ = *pSrc++;
scalar_type<T>::destruct_array(pDst_end, n);
}
m_size -= n;
}
inline void erase(uint32_t index)
{
erase(index, 1);
}
inline void erase(T* p)
{
assert((p >= m_p) && (p < (m_p + m_size)));
erase(static_cast<uint32_t>(p - m_p));
}
inline void erase(T *pFirst, T *pEnd)
{
assert(pFirst <= pEnd);
assert(pFirst >= begin() && pFirst <= end());
assert(pEnd >= begin() && pEnd <= end());
int64_t ofs = pFirst - begin();
if ((ofs < 0) || (ofs > UINT32_MAX))
{
assert(0);
return;
}
int64_t n = pEnd - pFirst;
if ((n < 0) || (n > UINT32_MAX))
{
assert(0);
return;
}
erase((uint32_t)ofs, (uint32_t)n);
}
void erase_unordered(uint32_t index)
{
assert(index < m_size);
if ((index + 1) < m_size)
(*this)[index] = back();
pop_back();
}
inline bool operator== (const vector& rhs) const
{
if (m_size != rhs.m_size)
return false;
else if (m_size)
{
if (scalar_type<T>::cFlag)
return memcmp(m_p, rhs.m_p, sizeof(T) * m_size) == 0;
else
{
const T* pSrc = m_p;
const T* pDst = rhs.m_p;
for (uint32_t i = m_size; i; i--)
if (!(*pSrc++ == *pDst++))
return false;
}
}
return true;
}
inline bool operator< (const vector& rhs) const
{
const uint32_t min_size = helpers::minimum(m_size, rhs.m_size);
const T* pSrc = m_p;
const T* pSrc_end = m_p + min_size;
const T* pDst = rhs.m_p;
while ((pSrc < pSrc_end) && (*pSrc == *pDst))
{
pSrc++;
pDst++;
}
if (pSrc < pSrc_end)
return *pSrc < *pDst;
return m_size < rhs.m_size;
}
inline void swap(vector& other)
{
std::swap(m_p, other.m_p);
std::swap(m_size, other.m_size);
std::swap(m_capacity, other.m_capacity);
}
inline void sort()
{
std::sort(begin(), end());
}
inline void unique()
{
if (!empty())
{
sort();
resize(std::unique(begin(), end()) - begin());
}
}
inline void reverse()
{
uint32_t j = m_size >> 1;
for (uint32_t i = 0; i < j; i++)
std::swap(m_p[i], m_p[m_size - 1 - i]);
}
inline int find(const T& key) const
{
const T* p = m_p;
const T* p_end = m_p + m_size;
uint32_t index = 0;
while (p != p_end)
{
if (key == *p)
return index;
p++;
index++;
}
return cInvalidIndex;
}
inline int find_sorted(const T& key) const
{
if (m_size)
{
// Uniform binary search - Knuth Algorithm 6.2.1 U, unrolled twice.
int i = ((m_size + 1) >> 1) - 1;
int m = m_size;
for (; ; )
{
assert(i >= 0 && i < (int)m_size);
const T* pKey_i = m_p + i;
int cmp = key < *pKey_i;
#if defined(_DEBUG) || defined(DEBUG)
int cmp2 = *pKey_i < key;
assert((cmp != cmp2) || (key == *pKey_i));
#endif
if ((!cmp) && (key == *pKey_i)) return i;
m >>= 1;
if (!m) break;
cmp = -cmp;
i += (((m + 1) >> 1) ^ cmp) - cmp;
if (i < 0)
break;
assert(i >= 0 && i < (int)m_size);
pKey_i = m_p + i;
cmp = key < *pKey_i;
#if defined(_DEBUG) || defined(DEBUG)
cmp2 = *pKey_i < key;
assert((cmp != cmp2) || (key == *pKey_i));
#endif
if ((!cmp) && (key == *pKey_i)) return i;
m >>= 1;
if (!m) break;
cmp = -cmp;
i += (((m + 1) >> 1) ^ cmp) - cmp;
if (i < 0)
break;
}
}
return cInvalidIndex;
}
template<typename Q>
inline int find_sorted(const T& key, Q less_than) const
{
if (m_size)
{
// Uniform binary search - Knuth Algorithm 6.2.1 U, unrolled twice.
int i = ((m_size + 1) >> 1) - 1;
int m = m_size;
for (; ; )
{
assert(i >= 0 && i < (int)m_size);
const T* pKey_i = m_p + i;
int cmp = less_than(key, *pKey_i);
if ((!cmp) && (!less_than(*pKey_i, key))) return i;
m >>= 1;
if (!m) break;
cmp = -cmp;
i += (((m + 1) >> 1) ^ cmp) - cmp;
if (i < 0)
break;
assert(i >= 0 && i < (int)m_size);
pKey_i = m_p + i;
cmp = less_than(key, *pKey_i);
if ((!cmp) && (!less_than(*pKey_i, key))) return i;
m >>= 1;
if (!m) break;
cmp = -cmp;
i += (((m + 1) >> 1) ^ cmp) - cmp;
if (i < 0)
break;
}
}
return cInvalidIndex;
}
inline uint32_t count_occurences(const T& key) const
{
uint32_t c = 0;
const T* p = m_p;
const T* p_end = m_p + m_size;
while (p != p_end)
{
if (key == *p)
c++;
p++;
}
return c;
}
inline void set_all(const T& o)
{
if ((sizeof(T) == 1) && (scalar_type<T>::cFlag))
memset(m_p, *reinterpret_cast<const uint8_t*>(&o), m_size);
else
{
T* pDst = m_p;
T* pDst_end = pDst + m_size;
while (pDst != pDst_end)
*pDst++ = o;
}
}
// Caller assumes ownership of the heap block associated with the container. Container is cleared.
inline void* assume_ownership()
{
T* p = m_p;
m_p = NULL;
m_size = 0;
m_capacity = 0;
return p;
}
// Caller is granting ownership of the indicated heap block.
// Block must have size constructed elements, and have enough room for capacity elements.
Update basis universal to version 1.16.3. Enable basis universal uastc internal storage instead of etc1s for better quality.
2022-03-24 20:39:24 +01:00
// The block must have been allocated using malloc().
// Important: This method is used in Basis Universal. If you change how this container allocates memory, you'll need to change any users of this method.
basis_universal: Update to upstream commit from Apr 16, 2021 BinomialLLC/basis_universal@ba1c3e40f1d434ebaf9a167b44e9b11d2bf0f765.
2021-05-07 17:00:41 +02:00
inline bool grant_ownership(T* p, uint32_t size, uint32_t capacity)
{
// To to prevent the caller from obviously shooting themselves in the foot.
if (((p + capacity) > m_p) && (p < (m_p + m_capacity)))
{
// Can grant ownership of a block inside the container itself!
assert(0);
return false;
}
if (size > capacity)
{
assert(0);
return false;
}
if (!p)
{
if (capacity)
{
assert(0);
return false;
}
}
else if (!capacity)
{
assert(0);
return false;
}
clear();
m_p = p;
m_size = size;
m_capacity = capacity;
return true;
}
private:
T* m_p;
uint32_t m_size;
uint32_t m_capacity;
template<typename Q> struct is_vector { enum { cFlag = false }; };
template<typename Q> struct is_vector< vector<Q> > { enum { cFlag = true }; };
static void object_mover(void* pDst_void, void* pSrc_void, uint32_t num)
{
T* pSrc = static_cast<T*>(pSrc_void);
T* const pSrc_end = pSrc + num;
T* pDst = static_cast<T*>(pDst_void);
while (pSrc != pSrc_end)
{
// placement new
new (static_cast<void*>(pDst)) T(*pSrc);
pSrc->~T();
++pSrc;
++pDst;
}
}
inline bool increase_capacity(uint32_t min_new_capacity, bool grow_hint, bool nofail = false)
{
return reinterpret_cast<elemental_vector*>(this)->increase_capacity(
min_new_capacity, grow_hint, sizeof(T),
(BASISU_IS_BITWISE_COPYABLE_OR_MOVABLE(T) || (is_vector<T>::cFlag)) ? NULL : object_mover, nofail);
}
};
template<typename T> struct bitwise_movable< vector<T> > { enum { cFlag = true }; };
// Hash map
template <typename T>
struct hasher
{
inline size_t operator() (const T& key) const { return static_cast<size_t>(key); }
};
template <typename T>
struct equal_to
{
inline bool operator()(const T& a, const T& b) const { return a == b; }
};
// Important: The Hasher and Equals objects must be bitwise movable!
template<typename Key, typename Value = empty_type, typename Hasher = hasher<Key>, typename Equals = equal_to<Key> >
class hash_map
{
public:
class iterator;
class const_iterator;
private:
friend class iterator;
friend class const_iterator;
enum state
{
cStateInvalid = 0,
cStateValid = 1
};
enum
{
cMinHashSize = 4U
};
public:
typedef hash_map<Key, Value, Hasher, Equals> hash_map_type;
typedef std::pair<Key, Value> value_type;
typedef Key key_type;
typedef Value referent_type;
typedef Hasher hasher_type;
typedef Equals equals_type;
hash_map() :
m_hash_shift(32), m_num_valid(0), m_grow_threshold(0)
{
}
hash_map(const hash_map& other) :
m_values(other.m_values),
m_hash_shift(other.m_hash_shift),
m_hasher(other.m_hasher),
m_equals(other.m_equals),
m_num_valid(other.m_num_valid),
m_grow_threshold(other.m_grow_threshold)
{
}
hash_map& operator= (const hash_map& other)
{
if (this == &other)
return *this;
clear();
m_values = other.m_values;
m_hash_shift = other.m_hash_shift;
m_num_valid = other.m_num_valid;
m_grow_threshold = other.m_grow_threshold;
m_hasher = other.m_hasher;
m_equals = other.m_equals;
return *this;
}
inline ~hash_map()
{
clear();
}
const Equals& get_equals() const { return m_equals; }
Equals& get_equals() { return m_equals; }
void set_equals(const Equals& equals) { m_equals = equals; }
const Hasher& get_hasher() const { return m_hasher; }
Hasher& get_hasher() { return m_hasher; }
void set_hasher(const Hasher& hasher) { m_hasher = hasher; }
inline void clear()
{
if (!m_values.empty())
{
if (BASISU_HAS_DESTRUCTOR(Key) || BASISU_HAS_DESTRUCTOR(Value))
{
node* p = &get_node(0);
node* p_end = p + m_values.size();
uint32_t num_remaining = m_num_valid;
while (p != p_end)
{
if (p->state)
{
destruct_value_type(p);
num_remaining--;
if (!num_remaining)
break;
}
p++;
}
}
m_values.clear_no_destruction();
m_hash_shift = 32;
m_num_valid = 0;
m_grow_threshold = 0;
}
}
inline void reset()
{
if (!m_num_valid)
return;
if (BASISU_HAS_DESTRUCTOR(Key) || BASISU_HAS_DESTRUCTOR(Value))
{
node* p = &get_node(0);
node* p_end = p + m_values.size();
uint32_t num_remaining = m_num_valid;
while (p != p_end)
{
if (p->state)
{
destruct_value_type(p);
p->state = cStateInvalid;
num_remaining--;
if (!num_remaining)
break;
}
p++;
}
}
else if (sizeof(node) <= 32)
{
memset(&m_values[0], 0, m_values.size_in_bytes());
}
else
{
node* p = &get_node(0);
node* p_end = p + m_values.size();
uint32_t num_remaining = m_num_valid;
while (p != p_end)
{
if (p->state)
{
p->state = cStateInvalid;
num_remaining--;
if (!num_remaining)
break;
}
p++;
}
}
m_num_valid = 0;
}
inline uint32_t size()
{
return m_num_valid;
}
inline uint32_t get_table_size()
{
return m_values.size();
}
inline bool empty()
{
return !m_num_valid;
}
inline void reserve(uint32_t new_capacity)
{
uint64_t new_hash_size = helpers::maximum(1U, new_capacity);
new_hash_size = new_hash_size * 2ULL;
if (!helpers::is_power_of_2(new_hash_size))
new_hash_size = helpers::next_pow2(new_hash_size);
new_hash_size = helpers::maximum<uint64_t>(cMinHashSize, new_hash_size);
new_hash_size = helpers::minimum<uint64_t>(0x80000000UL, new_hash_size);
if (new_hash_size > m_values.size())
rehash((uint32_t)new_hash_size);
}
class iterator
{
friend class hash_map<Key, Value, Hasher, Equals>;
friend class hash_map<Key, Value, Hasher, Equals>::const_iterator;
public:
inline iterator() : m_pTable(NULL), m_index(0) { }
inline iterator(hash_map_type& table, uint32_t index) : m_pTable(&table), m_index(index) { }
inline iterator(const iterator& other) : m_pTable(other.m_pTable), m_index(other.m_index) { }
inline iterator& operator= (const iterator& other)
{
m_pTable = other.m_pTable;
m_index = other.m_index;
return *this;
}
// post-increment
inline iterator operator++(int)
{
iterator result(*this);
++*this;
return result;
}
// pre-increment
inline iterator& operator++()
{
probe();
return *this;
}
inline value_type& operator*() const { return *get_cur(); }
inline value_type* operator->() const { return get_cur(); }
inline bool operator == (const iterator& b) const { return (m_pTable == b.m_pTable) && (m_index == b.m_index); }
inline bool operator != (const iterator& b) const { return !(*this == b); }
inline bool operator == (const const_iterator& b) const { return (m_pTable == b.m_pTable) && (m_index == b.m_index); }
inline bool operator != (const const_iterator& b) const { return !(*this == b); }
private:
hash_map_type* m_pTable;
uint32_t m_index;
inline value_type* get_cur() const
{
assert(m_pTable && (m_index < m_pTable->m_values.size()));
assert(m_pTable->get_node_state(m_index) == cStateValid);
return &m_pTable->get_node(m_index);
}
inline void probe()
{
assert(m_pTable);
m_index = m_pTable->find_next(m_index);
}
};
class const_iterator
{
friend class hash_map<Key, Value, Hasher, Equals>;
friend class hash_map<Key, Value, Hasher, Equals>::iterator;
public:
inline const_iterator() : m_pTable(NULL), m_index(0) { }
inline const_iterator(const hash_map_type& table, uint32_t index) : m_pTable(&table), m_index(index) { }
inline const_iterator(const iterator& other) : m_pTable(other.m_pTable), m_index(other.m_index) { }
inline const_iterator(const const_iterator& other) : m_pTable(other.m_pTable), m_index(other.m_index) { }
inline const_iterator& operator= (const const_iterator& other)
{
m_pTable = other.m_pTable;
m_index = other.m_index;
return *this;
}
inline const_iterator& operator= (const iterator& other)
{
m_pTable = other.m_pTable;
m_index = other.m_index;
return *this;
}
// post-increment
inline const_iterator operator++(int)
{
const_iterator result(*this);
++*this;
return result;
}
// pre-increment
inline const_iterator& operator++()
{
probe();
return *this;
}
inline const value_type& operator*() const { return *get_cur(); }
inline const value_type* operator->() const { return get_cur(); }
inline bool operator == (const const_iterator& b) const { return (m_pTable == b.m_pTable) && (m_index == b.m_index); }
inline bool operator != (const const_iterator& b) const { return !(*this == b); }
inline bool operator == (const iterator& b) const { return (m_pTable == b.m_pTable) && (m_index == b.m_index); }
inline bool operator != (const iterator& b) const { return !(*this == b); }
private:
const hash_map_type* m_pTable;
uint32_t m_index;
inline const value_type* get_cur() const
{
assert(m_pTable && (m_index < m_pTable->m_values.size()));
assert(m_pTable->get_node_state(m_index) == cStateValid);
return &m_pTable->get_node(m_index);
}
inline void probe()
{
assert(m_pTable);
m_index = m_pTable->find_next(m_index);
}
};
inline const_iterator begin() const
{
if (!m_num_valid)
return end();
return const_iterator(*this, find_next(UINT32_MAX));
}
inline const_iterator end() const
{
return const_iterator(*this, m_values.size());
}
inline iterator begin()
{
if (!m_num_valid)
return end();
return iterator(*this, find_next(UINT32_MAX));
}
inline iterator end()
{
return iterator(*this, m_values.size());
}
// insert_result.first will always point to inserted key/value (or the already existing key/value).
// insert_resutt.second will be true if a new key/value was inserted, or false if the key already existed (in which case first will point to the already existing value).
typedef std::pair<iterator, bool> insert_result;
inline insert_result insert(const Key& k, const Value& v = Value())
{
insert_result result;
if (!insert_no_grow(result, k, v))
{
grow();
// This must succeed.
if (!insert_no_grow(result, k, v))
{
fprintf(stderr, "insert() failed");
abort();
}
}
return result;
}
inline insert_result insert(const value_type& v)
{
return insert(v.first, v.second);
}
inline const_iterator find(const Key& k) const
{
return const_iterator(*this, find_index(k));
}
inline iterator find(const Key& k)
{
return iterator(*this, find_index(k));
}
inline bool erase(const Key& k)
{
uint32_t i = find_index(k);
if (i >= m_values.size())
return false;
node* pDst = &get_node(i);
destruct_value_type(pDst);
pDst->state = cStateInvalid;
m_num_valid--;
for (; ; )
{
uint32_t r, j = i;
node* pSrc = pDst;
do
{
if (!i)
{
i = m_values.size() - 1;
pSrc = &get_node(i);
}
else
{
i--;
pSrc--;
}
if (!pSrc->state)
return true;
r = hash_key(pSrc->first);
} while ((i <= r && r < j) || (r < j && j < i) || (j < i && i <= r));
move_node(pDst, pSrc);
pDst = pSrc;
}
}
inline void swap(hash_map_type& other)
{
m_values.swap(other.m_values);
std::swap(m_hash_shift, other.m_hash_shift);
std::swap(m_num_valid, other.m_num_valid);
std::swap(m_grow_threshold, other.m_grow_threshold);
std::swap(m_hasher, other.m_hasher);
std::swap(m_equals, other.m_equals);
}
private:
struct node : public value_type
{
uint8_t state;
};
static inline void construct_value_type(value_type* pDst, const Key& k, const Value& v)
{
if (BASISU_IS_BITWISE_COPYABLE(Key))
memcpy(&pDst->first, &k, sizeof(Key));
else
scalar_type<Key>::construct(&pDst->first, k);
if (BASISU_IS_BITWISE_COPYABLE(Value))
memcpy(&pDst->second, &v, sizeof(Value));
else
scalar_type<Value>::construct(&pDst->second, v);
}
static inline void construct_value_type(value_type* pDst, const value_type* pSrc)
{
if ((BASISU_IS_BITWISE_COPYABLE(Key)) && (BASISU_IS_BITWISE_COPYABLE(Value)))
{
memcpy(pDst, pSrc, sizeof(value_type));
}
else
{
if (BASISU_IS_BITWISE_COPYABLE(Key))
memcpy(&pDst->first, &pSrc->first, sizeof(Key));
else
scalar_type<Key>::construct(&pDst->first, pSrc->first);
if (BASISU_IS_BITWISE_COPYABLE(Value))
memcpy(&pDst->second, &pSrc->second, sizeof(Value));
else
scalar_type<Value>::construct(&pDst->second, pSrc->second);
}
}
static inline void destruct_value_type(value_type* p)
{
scalar_type<Key>::destruct(&p->first);
scalar_type<Value>::destruct(&p->second);
}
// Moves *pSrc to *pDst efficiently.
// pDst should NOT be constructed on entry.
static inline void move_node(node* pDst, node* pSrc, bool update_src_state = true)
{
assert(!pDst->state);
if (BASISU_IS_BITWISE_COPYABLE_OR_MOVABLE(Key) && BASISU_IS_BITWISE_COPYABLE_OR_MOVABLE(Value))
{
memcpy(pDst, pSrc, sizeof(node));
}
else
{
if (BASISU_IS_BITWISE_COPYABLE_OR_MOVABLE(Key))
memcpy(&pDst->first, &pSrc->first, sizeof(Key));
else
{
scalar_type<Key>::construct(&pDst->first, pSrc->first);
scalar_type<Key>::destruct(&pSrc->first);
}
if (BASISU_IS_BITWISE_COPYABLE_OR_MOVABLE(Value))
memcpy(&pDst->second, &pSrc->second, sizeof(Value));
else
{
scalar_type<Value>::construct(&pDst->second, pSrc->second);
scalar_type<Value>::destruct(&pSrc->second);
}
pDst->state = cStateValid;
}
if (update_src_state)
pSrc->state = cStateInvalid;
}
struct raw_node
{
inline raw_node()
{
node* p = reinterpret_cast<node*>(this);
p->state = cStateInvalid;
}
inline ~raw_node()
{
node* p = reinterpret_cast<node*>(this);
if (p->state)
hash_map_type::destruct_value_type(p);
}
inline raw_node(const raw_node& other)
{
node* pDst = reinterpret_cast<node*>(this);
const node* pSrc = reinterpret_cast<const node*>(&other);
if (pSrc->state)
{
hash_map_type::construct_value_type(pDst, pSrc);
pDst->state = cStateValid;
}
else
pDst->state = cStateInvalid;
}
inline raw_node& operator= (const raw_node& rhs)
{
if (this == &rhs)
return *this;
node* pDst = reinterpret_cast<node*>(this);
const node* pSrc = reinterpret_cast<const node*>(&rhs);
if (pSrc->state)
{
if (pDst->state)
{
pDst->first = pSrc->first;
pDst->second = pSrc->second;
}
else
{
hash_map_type::construct_value_type(pDst, pSrc);
pDst->state = cStateValid;
}
}
else if (pDst->state)
{
hash_map_type::destruct_value_type(pDst);
pDst->state = cStateInvalid;
}
return *this;
}
uint8_t m_bits[sizeof(node)];
};
typedef basisu::vector<raw_node> node_vector;
node_vector m_values;
uint32_t m_hash_shift;
Hasher m_hasher;
Equals m_equals;
uint32_t m_num_valid;
uint32_t m_grow_threshold;
inline uint32_t hash_key(const Key& k) const
{
assert((1U << (32U - m_hash_shift)) == m_values.size());
uint32_t hash = static_cast<uint32_t>(m_hasher(k));
// Fibonacci hashing
hash = (2654435769U * hash) >> m_hash_shift;
assert(hash < m_values.size());
return hash;
}
inline const node& get_node(uint32_t index) const
{
return *reinterpret_cast<const node*>(&m_values[index]);
}
inline node& get_node(uint32_t index)
{
return *reinterpret_cast<node*>(&m_values[index]);
}
inline state get_node_state(uint32_t index) const
{
return static_cast<state>(get_node(index).state);
}
inline void set_node_state(uint32_t index, bool valid)
{
get_node(index).state = valid;
}
inline void grow()
{
uint64_t n = m_values.size() * 3ULL; // was * 2
if (!helpers::is_power_of_2(n))
n = helpers::next_pow2(n);
if (n > 0x80000000UL)
n = 0x80000000UL;
rehash(helpers::maximum<uint32_t>(cMinHashSize, (uint32_t)n));
}
inline void rehash(uint32_t new_hash_size)
{
assert(new_hash_size >= m_num_valid);
assert(helpers::is_power_of_2(new_hash_size));
if ((new_hash_size < m_num_valid) || (new_hash_size == m_values.size()))
return;
hash_map new_map;
new_map.m_values.resize(new_hash_size);
new_map.m_hash_shift = 32U - helpers::floor_log2i(new_hash_size);
assert(new_hash_size == (1U << (32U - new_map.m_hash_shift)));
new_map.m_grow_threshold = UINT_MAX;
node* pNode = reinterpret_cast<node*>(m_values.begin());
node* pNode_end = pNode + m_values.size();
while (pNode != pNode_end)
{
if (pNode->state)
{
new_map.move_into(pNode);
if (new_map.m_num_valid == m_num_valid)
break;
}
pNode++;
}
new_map.m_grow_threshold = (new_hash_size + 1U) >> 1U;
m_values.clear_no_destruction();
m_hash_shift = 32;
swap(new_map);
}
inline uint32_t find_next(uint32_t index) const
{
index++;
if (index >= m_values.size())
return index;
const node* pNode = &get_node(index);
for (; ; )
{
if (pNode->state)
break;
if (++index >= m_values.size())
break;
pNode++;
}
return index;
}
inline uint32_t find_index(const Key& k) const
{
if (m_num_valid)
{
uint32_t index = hash_key(k);
const node* pNode = &get_node(index);
if (pNode->state)
{
if (m_equals(pNode->first, k))
return index;
const uint32_t orig_index = index;
for (; ; )
{
if (!index)
{
index = m_values.size() - 1;
pNode = &get_node(index);
}
else
{
index--;
pNode--;
}
if (index == orig_index)
break;
if (!pNode->state)
break;
if (m_equals(pNode->first, k))
return index;
}
}
}
return m_values.size();
}
inline bool insert_no_grow(insert_result& result, const Key& k, const Value& v = Value())
{
if (!m_values.size())
return false;
uint32_t index = hash_key(k);
node* pNode = &get_node(index);
if (pNode->state)
{
if (m_equals(pNode->first, k))
{
result.first = iterator(*this, index);
result.second = false;
return true;
}
const uint32_t orig_index = index;
for (; ; )
{
if (!index)
{
index = m_values.size() - 1;
pNode = &get_node(index);
}
else
{
index--;
pNode--;
}
if (orig_index == index)
return false;
if (!pNode->state)
break;
if (m_equals(pNode->first, k))
{
result.first = iterator(*this, index);
result.second = false;
return true;
}
}
}
if (m_num_valid >= m_grow_threshold)
return false;
construct_value_type(pNode, k, v);
pNode->state = cStateValid;
m_num_valid++;
assert(m_num_valid <= m_values.size());
result.first = iterator(*this, index);
result.second = true;
return true;
}
inline void move_into(node* pNode)
{
uint32_t index = hash_key(pNode->first);
node* pDst_node = &get_node(index);
if (pDst_node->state)
{
const uint32_t orig_index = index;
for (; ; )
{
if (!index)
{
index = m_values.size() - 1;
pDst_node = &get_node(index);
}
else
{
index--;
pDst_node--;
}
if (index == orig_index)
{
assert(false);
return;
}
if (!pDst_node->state)
break;
}
}
move_node(pDst_node, pNode, false);
m_num_valid++;
}
};
template<typename Key, typename Value, typename Hasher, typename Equals>
struct bitwise_movable< hash_map<Key, Value, Hasher, Equals> > { enum { cFlag = true }; };
#if BASISU_HASHMAP_TEST
extern void hash_map_test();
#endif
} // namespace basisu
namespace std
{
template<typename T>
inline void swap(basisu::vector<T>& a, basisu::vector<T>& b)
{
a.swap(b);
}
template<typename Key, typename Value, typename Hasher, typename Equals>
inline void swap(basisu::hash_map<Key, Value, Hasher, Equals>& a, basisu::hash_map<Key, Value, Hasher, Equals>& b)
{
a.swap(b);
}
} // namespace std
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