summaryrefslogtreecommitdiffstats
path: root/media/omx-plugin/include/ics/utils/Vector.h
blob: e30071d16d0ba9079342af5596cac2a5bbd2c5d2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
/*
 * Copyright (C) 2005 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef ANDROID_VECTOR_H
#define ANDROID_VECTOR_H

#include <new>
#include <stdint.h>
#include <sys/types.h>

#include <cutils/log.h>

#include <utils/VectorImpl.h>
#include <utils/TypeHelpers.h>

// ---------------------------------------------------------------------------

namespace android {

template <typename TYPE>
class SortedVector;

/*!
 * The main templated vector class ensuring type safety
 * while making use of VectorImpl.
 * This is the class users want to use.
 */

template <class TYPE>
class Vector : private VectorImpl
{
public:
            typedef TYPE    value_type;

    /*!
     * Constructors and destructors
     */

                            Vector();
                            Vector(const Vector<TYPE>& rhs);
    explicit                Vector(const SortedVector<TYPE>& rhs);
    virtual                 ~Vector();

    /*! copy operator */
            const Vector<TYPE>&     operator = (const Vector<TYPE>& rhs) const;
            Vector<TYPE>&           operator = (const Vector<TYPE>& rhs);

            const Vector<TYPE>&     operator = (const SortedVector<TYPE>& rhs) const;
            Vector<TYPE>&           operator = (const SortedVector<TYPE>& rhs);

            /*
     * empty the vector
     */

    inline  void            clear()             { VectorImpl::clear(); }

    /*!
     * vector stats
     */

    //! returns number of items in the vector
    inline  size_t          size() const                { return VectorImpl::size(); }
    //! returns whether or not the vector is empty
    inline  bool            isEmpty() const             { return VectorImpl::isEmpty(); }
    //! returns how many items can be stored without reallocating the backing store
    inline  size_t          capacity() const            { return VectorImpl::capacity(); }
    //! sets the capacity. capacity can never be reduced less than size()
    inline  ssize_t         setCapacity(size_t size)    { return VectorImpl::setCapacity(size); }

    /*!
     * set the size of the vector. items are appended with the default
     * constructor, or removed from the end as needed.
     */
    inline  ssize_t         resize(size_t size)         { return VectorImpl::resize(size); }

    /*!
     * C-style array access
     */

    //! read-only C-style access
    inline  const TYPE*     array() const;
    //! read-write C-style access
            TYPE*           editArray();

    /*!
     * accessors
     */

    //! read-only access to an item at a given index
    inline  const TYPE&     operator [] (size_t index) const;
    //! alternate name for operator []
    inline  const TYPE&     itemAt(size_t index) const;
    //! stack-usage of the vector. returns the top of the stack (last element)
            const TYPE&     top() const;

    /*!
     * modifying the array
     */

    //! copy-on write support, grants write access to an item
            TYPE&           editItemAt(size_t index);
    //! grants right access to the top of the stack (last element)
            TYPE&           editTop();

            /*!
             * append/insert another vector
             */

    //! insert another vector at a given index
            ssize_t         insertVectorAt(const Vector<TYPE>& vector, size_t index);

    //! append another vector at the end of this one
            ssize_t         appendVector(const Vector<TYPE>& vector);


    //! insert an array at a given index
            ssize_t         insertArrayAt(const TYPE* array, size_t index, size_t length);

    //! append an array at the end of this vector
            ssize_t         appendArray(const TYPE* array, size_t length);

            /*!
             * add/insert/replace items
             */

    //! insert one or several items initialized with their default constructor
    inline  ssize_t         insertAt(size_t index, size_t numItems = 1);
    //! insert one or several items initialized from a prototype item
            ssize_t         insertAt(const TYPE& prototype_item, size_t index, size_t numItems = 1);
    //! pop the top of the stack (removes the last element). No-op if the stack's empty
    inline  void            pop();
    //! pushes an item initialized with its default constructor
    inline  void            push();
    //! pushes an item on the top of the stack
            void            push(const TYPE& item);
    //! same as push() but returns the index the item was added at (or an error)
    inline  ssize_t         add();
    //! same as push() but returns the index the item was added at (or an error)
            ssize_t         add(const TYPE& item);
    //! replace an item with a new one initialized with its default constructor
    inline  ssize_t         replaceAt(size_t index);
    //! replace an item with a new one
            ssize_t         replaceAt(const TYPE& item, size_t index);

    /*!
     * remove items
     */

    //! remove several items
    inline  ssize_t         removeItemsAt(size_t index, size_t count = 1);
    //! remove one item
    inline  ssize_t         removeAt(size_t index)  { return removeItemsAt(index); }

    /*!
     * sort (stable) the array
     */

     typedef int (*compar_t)(const TYPE* lhs, const TYPE* rhs);
     typedef int (*compar_r_t)(const TYPE* lhs, const TYPE* rhs, void* state);

     inline status_t        sort(compar_t cmp);
     inline status_t        sort(compar_r_t cmp, void* state);

     // for debugging only
     inline size_t getItemSize() const { return itemSize(); }


     /*
      * these inlines add some level of compatibility with STL. eventually
      * we should probably turn things around.
      */
     typedef TYPE* iterator;
     typedef TYPE const* const_iterator;

     inline iterator begin() { return editArray(); }
     inline iterator end()   { return editArray() + size(); }
     inline const_iterator begin() const { return array(); }
     inline const_iterator end() const   { return array() + size(); }
     inline void reserve(size_t n) { setCapacity(n); }
     inline bool empty() const{ return isEmpty(); }
     inline void push_back(const TYPE& item)  { insertAt(item, size(), 1); }
     inline void push_front(const TYPE& item) { insertAt(item, 0, 1); }
     inline iterator erase(iterator pos) {
         ssize_t index = removeItemsAt(pos-array());
         return begin() + index;
     }

protected:
    virtual void    do_construct(void* storage, size_t num) const;
    virtual void    do_destroy(void* storage, size_t num) const;
    virtual void    do_copy(void* dest, const void* from, size_t num) const;
    virtual void    do_splat(void* dest, const void* item, size_t num) const;
    virtual void    do_move_forward(void* dest, const void* from, size_t num) const;
    virtual void    do_move_backward(void* dest, const void* from, size_t num) const;
};

// Vector<T> can be trivially moved using memcpy() because moving does not
// require any change to the underlying SharedBuffer contents or reference count.
template<typename T> struct trait_trivial_move<Vector<T> > { enum { value = true }; };

// ---------------------------------------------------------------------------
// No user serviceable parts from here...
// ---------------------------------------------------------------------------

template<class TYPE> inline
Vector<TYPE>::Vector()
    : VectorImpl(sizeof(TYPE),
                ((traits<TYPE>::has_trivial_ctor   ? HAS_TRIVIAL_CTOR   : 0)
                |(traits<TYPE>::has_trivial_dtor   ? HAS_TRIVIAL_DTOR   : 0)
                |(traits<TYPE>::has_trivial_copy   ? HAS_TRIVIAL_COPY   : 0))
                )
{
}

template<class TYPE> inline
Vector<TYPE>::Vector(const Vector<TYPE>& rhs)
    : VectorImpl(rhs) {
}

template<class TYPE> inline
Vector<TYPE>::Vector(const SortedVector<TYPE>& rhs)
    : VectorImpl(static_cast<const VectorImpl&>(rhs)) {
}

template<class TYPE> inline
Vector<TYPE>::~Vector() {
    finish_vector();
}

template<class TYPE> inline
Vector<TYPE>& Vector<TYPE>::operator = (const Vector<TYPE>& rhs) {
    VectorImpl::operator = (rhs);
    return *this;
}

template<class TYPE> inline
const Vector<TYPE>& Vector<TYPE>::operator = (const Vector<TYPE>& rhs) const {
    VectorImpl::operator = (static_cast<const VectorImpl&>(rhs));
    return *this;
}

template<class TYPE> inline
Vector<TYPE>& Vector<TYPE>::operator = (const SortedVector<TYPE>& rhs) {
    VectorImpl::operator = (static_cast<const VectorImpl&>(rhs));
    return *this;
}

template<class TYPE> inline
const Vector<TYPE>& Vector<TYPE>::operator = (const SortedVector<TYPE>& rhs) const {
    VectorImpl::operator = (rhs);
    return *this;
}

template<class TYPE> inline
const TYPE* Vector<TYPE>::array() const {
    return static_cast<const TYPE *>(arrayImpl());
}

template<class TYPE> inline
TYPE* Vector<TYPE>::editArray() {
    return static_cast<TYPE *>(editArrayImpl());
}


template<class TYPE> inline
const TYPE& Vector<TYPE>::operator[](size_t index) const {
    LOG_FATAL_IF(index>=size(),
            "%s: index=%u out of range (%u)", __PRETTY_FUNCTION__,
            int(index), int(size()));
    return *(array() + index);
}

template<class TYPE> inline
const TYPE& Vector<TYPE>::itemAt(size_t index) const {
    return operator[](index);
}

template<class TYPE> inline
const TYPE& Vector<TYPE>::top() const {
    return *(array() + size() - 1);
}

template<class TYPE> inline
TYPE& Vector<TYPE>::editItemAt(size_t index) {
    return *( static_cast<TYPE *>(editItemLocation(index)) );
}

template<class TYPE> inline
TYPE& Vector<TYPE>::editTop() {
    return *( static_cast<TYPE *>(editItemLocation(size()-1)) );
}

template<class TYPE> inline
ssize_t Vector<TYPE>::insertVectorAt(const Vector<TYPE>& vector, size_t index) {
    return VectorImpl::insertVectorAt(reinterpret_cast<const VectorImpl&>(vector), index);
}

template<class TYPE> inline
ssize_t Vector<TYPE>::appendVector(const Vector<TYPE>& vector) {
    return VectorImpl::appendVector(reinterpret_cast<const VectorImpl&>(vector));
}

template<class TYPE> inline
ssize_t Vector<TYPE>::insertArrayAt(const TYPE* array, size_t index, size_t length) {
    return VectorImpl::insertArrayAt(array, index, length);
}

template<class TYPE> inline
ssize_t Vector<TYPE>::appendArray(const TYPE* array, size_t length) {
    return VectorImpl::appendArray(array, length);
}

template<class TYPE> inline
ssize_t Vector<TYPE>::insertAt(const TYPE& item, size_t index, size_t numItems) {
    return VectorImpl::insertAt(&item, index, numItems);
}

template<class TYPE> inline
void Vector<TYPE>::push(const TYPE& item) {
    return VectorImpl::push(&item);
}

template<class TYPE> inline
ssize_t Vector<TYPE>::add(const TYPE& item) {
    return VectorImpl::add(&item);
}

template<class TYPE> inline
ssize_t Vector<TYPE>::replaceAt(const TYPE& item, size_t index) {
    return VectorImpl::replaceAt(&item, index);
}

template<class TYPE> inline
ssize_t Vector<TYPE>::insertAt(size_t index, size_t numItems) {
    return VectorImpl::insertAt(index, numItems);
}

template<class TYPE> inline
void Vector<TYPE>::pop() {
    VectorImpl::pop();
}

template<class TYPE> inline
void Vector<TYPE>::push() {
    VectorImpl::push();
}

template<class TYPE> inline
ssize_t Vector<TYPE>::add() {
    return VectorImpl::add();
}

template<class TYPE> inline
ssize_t Vector<TYPE>::replaceAt(size_t index) {
    return VectorImpl::replaceAt(index);
}

template<class TYPE> inline
ssize_t Vector<TYPE>::removeItemsAt(size_t index, size_t count) {
    return VectorImpl::removeItemsAt(index, count);
}

template<class TYPE> inline
status_t Vector<TYPE>::sort(Vector<TYPE>::compar_t cmp) {
    return VectorImpl::sort((VectorImpl::compar_t)cmp);
}

template<class TYPE> inline
status_t Vector<TYPE>::sort(Vector<TYPE>::compar_r_t cmp, void* state) {
    return VectorImpl::sort((VectorImpl::compar_r_t)cmp, state);
}

// ---------------------------------------------------------------------------

template<class TYPE>
void Vector<TYPE>::do_construct(void* storage, size_t num) const {
    construct_type( reinterpret_cast<TYPE*>(storage), num );
}

template<class TYPE>
void Vector<TYPE>::do_destroy(void* storage, size_t num) const {
    destroy_type( reinterpret_cast<TYPE*>(storage), num );
}

template<class TYPE>
void Vector<TYPE>::do_copy(void* dest, const void* from, size_t num) const {
    copy_type( reinterpret_cast<TYPE*>(dest), reinterpret_cast<const TYPE*>(from), num );
}

template<class TYPE>
void Vector<TYPE>::do_splat(void* dest, const void* item, size_t num) const {
    splat_type( reinterpret_cast<TYPE*>(dest), reinterpret_cast<const TYPE*>(item), num );
}

template<class TYPE>
void Vector<TYPE>::do_move_forward(void* dest, const void* from, size_t num) const {
    move_forward_type( reinterpret_cast<TYPE*>(dest), reinterpret_cast<const TYPE*>(from), num );
}

template<class TYPE>
void Vector<TYPE>::do_move_backward(void* dest, const void* from, size_t num) const {
    move_backward_type( reinterpret_cast<TYPE*>(dest), reinterpret_cast<const TYPE*>(from), num );
}

}; // namespace android


// ---------------------------------------------------------------------------

#endif // ANDROID_VECTOR_H