1/* 2 * Copyright 2005 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#ifndef ANDROID_PIXELFLINGER_SORTED_VECTOR_H 18#define ANDROID_PIXELFLINGER_SORTED_VECTOR_H 19 20#include <assert.h> 21#include <stdint.h> 22#include <sys/types.h> 23 24#include "Vector.h" 25#include "VectorImpl.h" 26#include "TypeHelpers.h" 27 28// --------------------------------------------------------------------------- 29 30namespace android { 31namespace tinyutils { 32 33template <class TYPE> 34class SortedVector : private SortedVectorImpl 35{ 36public: 37 typedef TYPE value_type; 38 39 /*! 40 * Constructors and destructors 41 */ 42 43 SortedVector(); 44 SortedVector(const SortedVector<TYPE>& rhs); 45 virtual ~SortedVector(); 46 47 /*! copy operator */ 48 const SortedVector<TYPE>& operator = (const SortedVector<TYPE>& rhs) const; 49 SortedVector<TYPE>& operator = (const SortedVector<TYPE>& rhs); 50 51 /* 52 * empty the vector 53 */ 54 55 inline void clear() { VectorImpl::clear(); } 56 57 /*! 58 * vector stats 59 */ 60 61 //! returns number of items in the vector 62 inline size_t size() const { return VectorImpl::size(); } 63 //! returns wether or not the vector is empty 64 inline bool isEmpty() const { return VectorImpl::isEmpty(); } 65 //! returns how many items can be stored without reallocating the backing store 66 inline size_t capacity() const { return VectorImpl::capacity(); } 67 //! setst the capacity. capacity can never be reduced less than size() 68 inline ssize_t setCapacity(size_t size) { return VectorImpl::setCapacity(size); } 69 70 /*! 71 * C-style array access 72 */ 73 74 //! read-only C-style access 75 inline const TYPE* array() const; 76 77 //! read-write C-style access. BE VERY CAREFUL when modifying the array 78 //! you ust keep it sorted! You usually don't use this function. 79 TYPE* editArray(); 80 81 //! finds the index of an item 82 ssize_t indexOf(const TYPE& item) const; 83 84 //! finds where this item should be inserted 85 size_t orderOf(const TYPE& item) const; 86 87 88 /*! 89 * accessors 90 */ 91 92 //! read-only access to an item at a given index 93 inline const TYPE& operator [] (size_t index) const; 94 //! alternate name for operator [] 95 inline const TYPE& itemAt(size_t index) const; 96 //! stack-usage of the vector. returns the top of the stack (last element) 97 const TYPE& top() const; 98 //! same as operator [], but allows to access the vector backward (from the end) with a negative index 99 const TYPE& mirrorItemAt(ssize_t index) const; 100 101 /*! 102 * modifing the array 103 */ 104 105 //! add an item in the right place (and replace the one that is there) 106 ssize_t add(const TYPE& item); 107 108 //! editItemAt() MUST NOT change the order of this item 109 TYPE& editItemAt(size_t index) { 110 return *( static_cast<TYPE *>(VectorImpl::editItemLocation(index)) ); 111 } 112 113 //! merges a vector into this one 114 ssize_t merge(const Vector<TYPE>& vector); 115 ssize_t merge(const SortedVector<TYPE>& vector); 116 117 //! removes an item 118 ssize_t remove(const TYPE&); 119 120 //! remove several items 121 inline ssize_t removeItemsAt(size_t index, size_t count = 1); 122 //! remove one item 123 inline ssize_t removeAt(size_t index) { return removeItemsAt(index); } 124 125protected: 126 virtual void do_construct(void* storage, size_t num) const; 127 virtual void do_destroy(void* storage, size_t num) const; 128 virtual void do_copy(void* dest, const void* from, size_t num) const; 129 virtual void do_splat(void* dest, const void* item, size_t num) const; 130 virtual void do_move_forward(void* dest, const void* from, size_t num) const; 131 virtual void do_move_backward(void* dest, const void* from, size_t num) const; 132 virtual int do_compare(const void* lhs, const void* rhs) const; 133}; 134 135 136// --------------------------------------------------------------------------- 137// No user serviceable parts from here... 138// --------------------------------------------------------------------------- 139 140template<class TYPE> inline 141SortedVector<TYPE>::SortedVector() 142 : SortedVectorImpl(sizeof(TYPE), 143 ((traits<TYPE>::has_trivial_ctor ? HAS_TRIVIAL_CTOR : 0) 144 |(traits<TYPE>::has_trivial_dtor ? HAS_TRIVIAL_DTOR : 0) 145 |(traits<TYPE>::has_trivial_copy ? HAS_TRIVIAL_COPY : 0) 146 |(traits<TYPE>::has_trivial_assign ? HAS_TRIVIAL_ASSIGN : 0)) 147 ) 148{ 149} 150 151template<class TYPE> inline 152SortedVector<TYPE>::SortedVector(const SortedVector<TYPE>& rhs) 153 : SortedVectorImpl(rhs) { 154} 155 156template<class TYPE> inline 157SortedVector<TYPE>::~SortedVector() { 158 finish_vector(); 159} 160 161template<class TYPE> inline 162SortedVector<TYPE>& SortedVector<TYPE>::operator = (const SortedVector<TYPE>& rhs) { 163 SortedVectorImpl::operator = (rhs); 164 return *this; 165} 166 167template<class TYPE> inline 168const SortedVector<TYPE>& SortedVector<TYPE>::operator = (const SortedVector<TYPE>& rhs) const { 169 SortedVectorImpl::operator = (rhs); 170 return *this; 171} 172 173template<class TYPE> inline 174const TYPE* SortedVector<TYPE>::array() const { 175 return static_cast<const TYPE *>(arrayImpl()); 176} 177 178template<class TYPE> inline 179TYPE* SortedVector<TYPE>::editArray() { 180 return static_cast<TYPE *>(editArrayImpl()); 181} 182 183 184template<class TYPE> inline 185const TYPE& SortedVector<TYPE>::operator[](size_t index) const { 186 assert( index<size() ); 187 return *(array() + index); 188} 189 190template<class TYPE> inline 191const TYPE& SortedVector<TYPE>::itemAt(size_t index) const { 192 return operator[](index); 193} 194 195template<class TYPE> inline 196const TYPE& SortedVector<TYPE>::mirrorItemAt(ssize_t index) const { 197 assert( (index>0 ? index : -index)<size() ); 198 return *(array() + ((index<0) ? (size()-index) : index)); 199} 200 201template<class TYPE> inline 202const TYPE& SortedVector<TYPE>::top() const { 203 return *(array() + size() - 1); 204} 205 206template<class TYPE> inline 207ssize_t SortedVector<TYPE>::add(const TYPE& item) { 208 return SortedVectorImpl::add(&item); 209} 210 211template<class TYPE> inline 212ssize_t SortedVector<TYPE>::indexOf(const TYPE& item) const { 213 return SortedVectorImpl::indexOf(&item); 214} 215 216template<class TYPE> inline 217size_t SortedVector<TYPE>::orderOf(const TYPE& item) const { 218 return SortedVectorImpl::orderOf(&item); 219} 220 221template<class TYPE> inline 222ssize_t SortedVector<TYPE>::merge(const Vector<TYPE>& vector) { 223 return SortedVectorImpl::merge(reinterpret_cast<const VectorImpl&>(vector)); 224} 225 226template<class TYPE> inline 227ssize_t SortedVector<TYPE>::merge(const SortedVector<TYPE>& vector) { 228 return SortedVectorImpl::merge(reinterpret_cast<const SortedVectorImpl&>(vector)); 229} 230 231template<class TYPE> inline 232ssize_t SortedVector<TYPE>::remove(const TYPE& item) { 233 return SortedVectorImpl::remove(&item); 234} 235 236template<class TYPE> inline 237ssize_t SortedVector<TYPE>::removeItemsAt(size_t index, size_t count) { 238 return VectorImpl::removeItemsAt(index, count); 239} 240 241// --------------------------------------------------------------------------- 242 243template<class TYPE> 244void SortedVector<TYPE>::do_construct(void* storage, size_t num) const { 245 construct_type( reinterpret_cast<TYPE*>(storage), num ); 246} 247 248template<class TYPE> 249void SortedVector<TYPE>::do_destroy(void* storage, size_t num) const { 250 destroy_type( reinterpret_cast<TYPE*>(storage), num ); 251} 252 253template<class TYPE> 254void SortedVector<TYPE>::do_copy(void* dest, const void* from, size_t num) const { 255 copy_type( reinterpret_cast<TYPE*>(dest), reinterpret_cast<const TYPE*>(from), num ); 256} 257 258template<class TYPE> 259void SortedVector<TYPE>::do_splat(void* dest, const void* item, size_t num) const { 260 splat_type( reinterpret_cast<TYPE*>(dest), reinterpret_cast<const TYPE*>(item), num ); 261} 262 263template<class TYPE> 264void SortedVector<TYPE>::do_move_forward(void* dest, const void* from, size_t num) const { 265 move_forward_type( reinterpret_cast<TYPE*>(dest), reinterpret_cast<const TYPE*>(from), num ); 266} 267 268template<class TYPE> 269void SortedVector<TYPE>::do_move_backward(void* dest, const void* from, size_t num) const { 270 move_backward_type( reinterpret_cast<TYPE*>(dest), reinterpret_cast<const TYPE*>(from), num ); 271} 272 273template<class TYPE> 274int SortedVector<TYPE>::do_compare(const void* lhs, const void* rhs) const { 275 return compare_type( *reinterpret_cast<const TYPE*>(lhs), *reinterpret_cast<const TYPE*>(rhs) ); 276} 277 278} // namespace tinyutils 279} // namespace android 280 281 282// --------------------------------------------------------------------------- 283 284#endif // ANDROID_PIXELFLINGER_SORTED_VECTOR_H 285