1// This file is part of Eigen, a lightweight C++ template library
2// for linear algebra.
3//
4// Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr>
5// Copyright (C) 2006-2009 Benoit Jacob <jacob.benoit.1@gmail.com>
6// Copyright (C) 2010-2013 Hauke Heibel <hauke.heibel@gmail.com>
7//
8// This Source Code Form is subject to the terms of the Mozilla
9// Public License v. 2.0. If a copy of the MPL was not distributed
10// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
11
12#ifndef EIGEN_MATRIXSTORAGE_H
13#define EIGEN_MATRIXSTORAGE_H
14
15#ifdef EIGEN_DENSE_STORAGE_CTOR_PLUGIN
16 #define EIGEN_INTERNAL_DENSE_STORAGE_CTOR_PLUGIN(X) X; EIGEN_DENSE_STORAGE_CTOR_PLUGIN;
17#else
18 #define EIGEN_INTERNAL_DENSE_STORAGE_CTOR_PLUGIN(X)
19#endif
20
21namespace Eigen {
22
23namespace internal {
24
25struct constructor_without_unaligned_array_assert {};
26
27template<typename T, int Size>
28EIGEN_DEVICE_FUNC
29void check_static_allocation_size()
30{
31 // if EIGEN_STACK_ALLOCATION_LIMIT is defined to 0, then no limit
32 #if EIGEN_STACK_ALLOCATION_LIMIT
33 EIGEN_STATIC_ASSERT(Size * sizeof(T) <= EIGEN_STACK_ALLOCATION_LIMIT, OBJECT_ALLOCATED_ON_STACK_IS_TOO_BIG);
34 #endif
35}
36
37/** \internal
38 * Static array. If the MatrixOrArrayOptions require auto-alignment, the array will be automatically aligned:
39 * to 16 bytes boundary if the total size is a multiple of 16 bytes.
40 */
41template <typename T, int Size, int MatrixOrArrayOptions,
42 int Alignment = (MatrixOrArrayOptions&DontAlign) ? 0
43 : compute_default_alignment<T,Size>::value >
44struct plain_array
45{
46 T array[Size];
47
48 EIGEN_DEVICE_FUNC
49 plain_array()
50 {
51 check_static_allocation_size<T,Size>();
52 }
53
54 EIGEN_DEVICE_FUNC
55 plain_array(constructor_without_unaligned_array_assert)
56 {
57 check_static_allocation_size<T,Size>();
58 }
59};
60
61#if defined(EIGEN_DISABLE_UNALIGNED_ARRAY_ASSERT)
62 #define EIGEN_MAKE_UNALIGNED_ARRAY_ASSERT(sizemask)
63#elif EIGEN_GNUC_AT_LEAST(4,7)
64 // GCC 4.7 is too aggressive in its optimizations and remove the alignment test based on the fact the array is declared to be aligned.
65 // See this bug report: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53900
66 // Hiding the origin of the array pointer behind a function argument seems to do the trick even if the function is inlined:
67 template<typename PtrType>
68 EIGEN_ALWAYS_INLINE PtrType eigen_unaligned_array_assert_workaround_gcc47(PtrType array) { return array; }
69 #define EIGEN_MAKE_UNALIGNED_ARRAY_ASSERT(sizemask) \
70 eigen_assert((internal::UIntPtr(eigen_unaligned_array_assert_workaround_gcc47(array)) & (sizemask)) == 0 \
71 && "this assertion is explained here: " \
72 "http://eigen.tuxfamily.org/dox-devel/group__TopicUnalignedArrayAssert.html" \
73 " **** READ THIS WEB PAGE !!! ****");
74#else
75 #define EIGEN_MAKE_UNALIGNED_ARRAY_ASSERT(sizemask) \
76 eigen_assert((internal::UIntPtr(array) & (sizemask)) == 0 \
77 && "this assertion is explained here: " \
78 "http://eigen.tuxfamily.org/dox-devel/group__TopicUnalignedArrayAssert.html" \
79 " **** READ THIS WEB PAGE !!! ****");
80#endif
81
82template <typename T, int Size, int MatrixOrArrayOptions>
83struct plain_array<T, Size, MatrixOrArrayOptions, 8>
84{
85 EIGEN_ALIGN_TO_BOUNDARY(8) T array[Size];
86
87 EIGEN_DEVICE_FUNC
88 plain_array()
89 {
90 EIGEN_MAKE_UNALIGNED_ARRAY_ASSERT(7);
91 check_static_allocation_size<T,Size>();
92 }
93
94 EIGEN_DEVICE_FUNC
95 plain_array(constructor_without_unaligned_array_assert)
96 {
97 check_static_allocation_size<T,Size>();
98 }
99};
100
101template <typename T, int Size, int MatrixOrArrayOptions>
102struct plain_array<T, Size, MatrixOrArrayOptions, 16>
103{
104 EIGEN_ALIGN_TO_BOUNDARY(16) T array[Size];
105
106 EIGEN_DEVICE_FUNC
107 plain_array()
108 {
109 EIGEN_MAKE_UNALIGNED_ARRAY_ASSERT(15);
110 check_static_allocation_size<T,Size>();
111 }
112
113 EIGEN_DEVICE_FUNC
114 plain_array(constructor_without_unaligned_array_assert)
115 {
116 check_static_allocation_size<T,Size>();
117 }
118};
119
120template <typename T, int Size, int MatrixOrArrayOptions>
121struct plain_array<T, Size, MatrixOrArrayOptions, 32>
122{
123 EIGEN_ALIGN_TO_BOUNDARY(32) T array[Size];
124
125 EIGEN_DEVICE_FUNC
126 plain_array()
127 {
128 EIGEN_MAKE_UNALIGNED_ARRAY_ASSERT(31);
129 check_static_allocation_size<T,Size>();
130 }
131
132 EIGEN_DEVICE_FUNC
133 plain_array(constructor_without_unaligned_array_assert)
134 {
135 check_static_allocation_size<T,Size>();
136 }
137};
138
139template <typename T, int Size, int MatrixOrArrayOptions>
140struct plain_array<T, Size, MatrixOrArrayOptions, 64>
141{
142 EIGEN_ALIGN_TO_BOUNDARY(64) T array[Size];
143
144 EIGEN_DEVICE_FUNC
145 plain_array()
146 {
147 EIGEN_MAKE_UNALIGNED_ARRAY_ASSERT(63);
148 check_static_allocation_size<T,Size>();
149 }
150
151 EIGEN_DEVICE_FUNC
152 plain_array(constructor_without_unaligned_array_assert)
153 {
154 check_static_allocation_size<T,Size>();
155 }
156};
157
158template <typename T, int MatrixOrArrayOptions, int Alignment>
159struct plain_array<T, 0, MatrixOrArrayOptions, Alignment>
160{
161 T array[1];
162 EIGEN_DEVICE_FUNC plain_array() {}
163 EIGEN_DEVICE_FUNC plain_array(constructor_without_unaligned_array_assert) {}
164};
165
166struct plain_array_helper {
167 template<typename T, int Size, int MatrixOrArrayOptions, int Alignment>
168 EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
169 static void copy(const plain_array<T, Size, MatrixOrArrayOptions, Alignment>& src, const Eigen::Index size,
170 plain_array<T, Size, MatrixOrArrayOptions, Alignment>& dst) {
171 smart_copy(src.array, src.array + size, dst.array);
172 }
173
174 template<typename T, int Size, int MatrixOrArrayOptions, int Alignment>
175 EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE
176 static void swap(plain_array<T, Size, MatrixOrArrayOptions, Alignment>& a, const Eigen::Index a_size,
177 plain_array<T, Size, MatrixOrArrayOptions, Alignment>& b, const Eigen::Index b_size) {
178 if (a_size < b_size) {
179 std::swap_ranges(b.array, b.array + a_size, a.array);
180 smart_move(b.array + a_size, b.array + b_size, a.array + a_size);
181 } else if (a_size > b_size) {
182 std::swap_ranges(a.array, a.array + b_size, b.array);
183 smart_move(a.array + b_size, a.array + a_size, b.array + b_size);
184 } else {
185 std::swap_ranges(a.array, a.array + a_size, b.array);
186 }
187 }
188};
189
190} // end namespace internal
191
192/** \internal
193 *
194 * \class DenseStorage
195 * \ingroup Core_Module
196 *
197 * \brief Stores the data of a matrix
198 *
199 * This class stores the data of fixed-size, dynamic-size or mixed matrices
200 * in a way as compact as possible.
201 *
202 * \sa Matrix
203 */
204template<typename T, int Size, int _Rows, int _Cols, int _Options> class DenseStorage;
205
206// purely fixed-size matrix
207template<typename T, int Size, int _Rows, int _Cols, int _Options> class DenseStorage
208{
209 internal::plain_array<T,Size,_Options> m_data;
210 public:
211 EIGEN_DEVICE_FUNC DenseStorage() {
212 EIGEN_INTERNAL_DENSE_STORAGE_CTOR_PLUGIN(Index size = Size)
213 }
214 EIGEN_DEVICE_FUNC
215 explicit DenseStorage(internal::constructor_without_unaligned_array_assert)
216 : m_data(internal::constructor_without_unaligned_array_assert()) {}
217#if !EIGEN_HAS_CXX11 || defined(EIGEN_DENSE_STORAGE_CTOR_PLUGIN)
218 EIGEN_DEVICE_FUNC
219 DenseStorage(const DenseStorage& other) : m_data(other.m_data) {
220 EIGEN_INTERNAL_DENSE_STORAGE_CTOR_PLUGIN(Index size = Size)
221 }
222#else
223 EIGEN_DEVICE_FUNC DenseStorage(const DenseStorage&) = default;
224#endif
225#if !EIGEN_HAS_CXX11
226 EIGEN_DEVICE_FUNC
227 DenseStorage& operator=(const DenseStorage& other)
228 {
229 if (this != &other) m_data = other.m_data;
230 return *this;
231 }
232#else
233 EIGEN_DEVICE_FUNC DenseStorage& operator=(const DenseStorage&) = default;
234#endif
235#if EIGEN_HAS_RVALUE_REFERENCES
236#if !EIGEN_HAS_CXX11
237 EIGEN_DEVICE_FUNC DenseStorage(DenseStorage&& other) EIGEN_NOEXCEPT
238 : m_data(std::move(other.m_data))
239 {
240 }
241 EIGEN_DEVICE_FUNC DenseStorage& operator=(DenseStorage&& other) EIGEN_NOEXCEPT
242 {
243 if (this != &other)
244 m_data = std::move(other.m_data);
245 return *this;
246 }
247#else
248 EIGEN_DEVICE_FUNC DenseStorage(DenseStorage&&) = default;
249 EIGEN_DEVICE_FUNC DenseStorage& operator=(DenseStorage&&) = default;
250#endif
251#endif
252 EIGEN_DEVICE_FUNC DenseStorage(Index size, Index rows, Index cols) {
253 EIGEN_INTERNAL_DENSE_STORAGE_CTOR_PLUGIN({})
254 eigen_internal_assert(size==rows*cols && rows==_Rows && cols==_Cols);
255 EIGEN_UNUSED_VARIABLE(size);
256 EIGEN_UNUSED_VARIABLE(rows);
257 EIGEN_UNUSED_VARIABLE(cols);
258 }
259 EIGEN_DEVICE_FUNC void swap(DenseStorage& other) {
260 numext::swap(m_data, other.m_data);
261 }
262 EIGEN_DEVICE_FUNC static EIGEN_CONSTEXPR Index rows(void) EIGEN_NOEXCEPT {return _Rows;}
263 EIGEN_DEVICE_FUNC static EIGEN_CONSTEXPR Index cols(void) EIGEN_NOEXCEPT {return _Cols;}
264 EIGEN_DEVICE_FUNC void conservativeResize(Index,Index,Index) {}
265 EIGEN_DEVICE_FUNC void resize(Index,Index,Index) {}
266 EIGEN_DEVICE_FUNC const T *data() const { return m_data.array; }
267 EIGEN_DEVICE_FUNC T *data() { return m_data.array; }
268};
269
270// null matrix
271template<typename T, int _Rows, int _Cols, int _Options> class DenseStorage<T, 0, _Rows, _Cols, _Options>
272{
273 public:
274 EIGEN_DEVICE_FUNC DenseStorage() {}
275 EIGEN_DEVICE_FUNC explicit DenseStorage(internal::constructor_without_unaligned_array_assert) {}
276 EIGEN_DEVICE_FUNC DenseStorage(const DenseStorage&) {}
277 EIGEN_DEVICE_FUNC DenseStorage& operator=(const DenseStorage&) { return *this; }
278 EIGEN_DEVICE_FUNC DenseStorage(Index,Index,Index) {}
279 EIGEN_DEVICE_FUNC void swap(DenseStorage& ) {}
280 EIGEN_DEVICE_FUNC static EIGEN_CONSTEXPR Index rows(void) EIGEN_NOEXCEPT {return _Rows;}
281 EIGEN_DEVICE_FUNC static EIGEN_CONSTEXPR Index cols(void) EIGEN_NOEXCEPT {return _Cols;}
282 EIGEN_DEVICE_FUNC void conservativeResize(Index,Index,Index) {}
283 EIGEN_DEVICE_FUNC void resize(Index,Index,Index) {}
284 EIGEN_DEVICE_FUNC const T *data() const { return 0; }
285 EIGEN_DEVICE_FUNC T *data() { return 0; }
286};
287
288// more specializations for null matrices; these are necessary to resolve ambiguities
289template<typename T, int _Options> class DenseStorage<T, 0, Dynamic, Dynamic, _Options>
290: public DenseStorage<T, 0, 0, 0, _Options> { };
291
292template<typename T, int _Rows, int _Options> class DenseStorage<T, 0, _Rows, Dynamic, _Options>
293: public DenseStorage<T, 0, 0, 0, _Options> { };
294
295template<typename T, int _Cols, int _Options> class DenseStorage<T, 0, Dynamic, _Cols, _Options>
296: public DenseStorage<T, 0, 0, 0, _Options> { };
297
298// dynamic-size matrix with fixed-size storage
299template<typename T, int Size, int _Options> class DenseStorage<T, Size, Dynamic, Dynamic, _Options>
300{
301 internal::plain_array<T,Size,_Options> m_data;
302 Index m_rows;
303 Index m_cols;
304 public:
305 EIGEN_DEVICE_FUNC DenseStorage() : m_rows(0), m_cols(0) {}
306 EIGEN_DEVICE_FUNC explicit DenseStorage(internal::constructor_without_unaligned_array_assert)
307 : m_data(internal::constructor_without_unaligned_array_assert()), m_rows(0), m_cols(0) {}
308 EIGEN_DEVICE_FUNC DenseStorage(const DenseStorage& other)
309 : m_data(internal::constructor_without_unaligned_array_assert()), m_rows(other.m_rows), m_cols(other.m_cols)
310 {
311 internal::plain_array_helper::copy(other.m_data, m_rows * m_cols, m_data);
312 }
313 EIGEN_DEVICE_FUNC DenseStorage& operator=(const DenseStorage& other)
314 {
315 if (this != &other)
316 {
317 m_rows = other.m_rows;
318 m_cols = other.m_cols;
319 internal::plain_array_helper::copy(other.m_data, m_rows * m_cols, m_data);
320 }
321 return *this;
322 }
323 EIGEN_DEVICE_FUNC DenseStorage(Index, Index rows, Index cols) : m_rows(rows), m_cols(cols) {}
324 EIGEN_DEVICE_FUNC void swap(DenseStorage& other)
325 {
326 internal::plain_array_helper::swap(m_data, m_rows * m_cols, other.m_data, other.m_rows * other.m_cols);
327 numext::swap(a&: m_rows,b&: other.m_rows);
328 numext::swap(a&: m_cols,b&: other.m_cols);
329 }
330 EIGEN_DEVICE_FUNC Index rows() const {return m_rows;}
331 EIGEN_DEVICE_FUNC Index cols() const {return m_cols;}
332 EIGEN_DEVICE_FUNC void conservativeResize(Index, Index rows, Index cols) { m_rows = rows; m_cols = cols; }
333 EIGEN_DEVICE_FUNC void resize(Index, Index rows, Index cols) { m_rows = rows; m_cols = cols; }
334 EIGEN_DEVICE_FUNC const T *data() const { return m_data.array; }
335 EIGEN_DEVICE_FUNC T *data() { return m_data.array; }
336};
337
338// dynamic-size matrix with fixed-size storage and fixed width
339template<typename T, int Size, int _Cols, int _Options> class DenseStorage<T, Size, Dynamic, _Cols, _Options>
340{
341 internal::plain_array<T,Size,_Options> m_data;
342 Index m_rows;
343 public:
344 EIGEN_DEVICE_FUNC DenseStorage() : m_rows(0) {}
345 EIGEN_DEVICE_FUNC explicit DenseStorage(internal::constructor_without_unaligned_array_assert)
346 : m_data(internal::constructor_without_unaligned_array_assert()), m_rows(0) {}
347 EIGEN_DEVICE_FUNC DenseStorage(const DenseStorage& other)
348 : m_data(internal::constructor_without_unaligned_array_assert()), m_rows(other.m_rows)
349 {
350 internal::plain_array_helper::copy(other.m_data, m_rows * _Cols, m_data);
351 }
352
353 EIGEN_DEVICE_FUNC DenseStorage& operator=(const DenseStorage& other)
354 {
355 if (this != &other)
356 {
357 m_rows = other.m_rows;
358 internal::plain_array_helper::copy(other.m_data, m_rows * _Cols, m_data);
359 }
360 return *this;
361 }
362 EIGEN_DEVICE_FUNC DenseStorage(Index, Index rows, Index) : m_rows(rows) {}
363 EIGEN_DEVICE_FUNC void swap(DenseStorage& other)
364 {
365 internal::plain_array_helper::swap(m_data, m_rows * _Cols, other.m_data, other.m_rows * _Cols);
366 numext::swap(a&: m_rows, b&: other.m_rows);
367 }
368 EIGEN_DEVICE_FUNC Index rows(void) const EIGEN_NOEXCEPT {return m_rows;}
369 EIGEN_DEVICE_FUNC EIGEN_CONSTEXPR Index cols(void) const EIGEN_NOEXCEPT {return _Cols;}
370 EIGEN_DEVICE_FUNC void conservativeResize(Index, Index rows, Index) { m_rows = rows; }
371 EIGEN_DEVICE_FUNC void resize(Index, Index rows, Index) { m_rows = rows; }
372 EIGEN_DEVICE_FUNC const T *data() const { return m_data.array; }
373 EIGEN_DEVICE_FUNC T *data() { return m_data.array; }
374};
375
376// dynamic-size matrix with fixed-size storage and fixed height
377template<typename T, int Size, int _Rows, int _Options> class DenseStorage<T, Size, _Rows, Dynamic, _Options>
378{
379 internal::plain_array<T,Size,_Options> m_data;
380 Index m_cols;
381 public:
382 EIGEN_DEVICE_FUNC DenseStorage() : m_cols(0) {}
383 EIGEN_DEVICE_FUNC explicit DenseStorage(internal::constructor_without_unaligned_array_assert)
384 : m_data(internal::constructor_without_unaligned_array_assert()), m_cols(0) {}
385 EIGEN_DEVICE_FUNC DenseStorage(const DenseStorage& other)
386 : m_data(internal::constructor_without_unaligned_array_assert()), m_cols(other.m_cols)
387 {
388 internal::plain_array_helper::copy(other.m_data, _Rows * m_cols, m_data);
389 }
390 EIGEN_DEVICE_FUNC DenseStorage& operator=(const DenseStorage& other)
391 {
392 if (this != &other)
393 {
394 m_cols = other.m_cols;
395 internal::plain_array_helper::copy(other.m_data, _Rows * m_cols, m_data);
396 }
397 return *this;
398 }
399 EIGEN_DEVICE_FUNC DenseStorage(Index, Index, Index cols) : m_cols(cols) {}
400 EIGEN_DEVICE_FUNC void swap(DenseStorage& other) {
401 internal::plain_array_helper::swap(m_data, _Rows * m_cols, other.m_data, _Rows * other.m_cols);
402 numext::swap(a&: m_cols, b&: other.m_cols);
403 }
404 EIGEN_DEVICE_FUNC EIGEN_CONSTEXPR Index rows(void) const EIGEN_NOEXCEPT {return _Rows;}
405 EIGEN_DEVICE_FUNC Index cols(void) const EIGEN_NOEXCEPT {return m_cols;}
406 EIGEN_DEVICE_FUNC void conservativeResize(Index, Index, Index cols) { m_cols = cols; }
407 EIGEN_DEVICE_FUNC void resize(Index, Index, Index cols) { m_cols = cols; }
408 EIGEN_DEVICE_FUNC const T *data() const { return m_data.array; }
409 EIGEN_DEVICE_FUNC T *data() { return m_data.array; }
410};
411
412// purely dynamic matrix.
413template<typename T, int _Options> class DenseStorage<T, Dynamic, Dynamic, Dynamic, _Options>
414{
415 T *m_data;
416 Index m_rows;
417 Index m_cols;
418 public:
419 EIGEN_DEVICE_FUNC DenseStorage() : m_data(0), m_rows(0), m_cols(0) {}
420 EIGEN_DEVICE_FUNC explicit DenseStorage(internal::constructor_without_unaligned_array_assert)
421 : m_data(0), m_rows(0), m_cols(0) {}
422 EIGEN_DEVICE_FUNC DenseStorage(Index size, Index rows, Index cols)
423 : m_data(internal::conditional_aligned_new_auto<T,(_Options&DontAlign)==0>(size)), m_rows(rows), m_cols(cols)
424 {
425 EIGEN_INTERNAL_DENSE_STORAGE_CTOR_PLUGIN({})
426 eigen_internal_assert(size==rows*cols && rows>=0 && cols >=0);
427 }
428 EIGEN_DEVICE_FUNC DenseStorage(const DenseStorage& other)
429 : m_data(internal::conditional_aligned_new_auto<T,(_Options&DontAlign)==0>(other.m_rows*other.m_cols))
430 , m_rows(other.m_rows)
431 , m_cols(other.m_cols)
432 {
433 EIGEN_INTERNAL_DENSE_STORAGE_CTOR_PLUGIN(Index size = m_rows*m_cols)
434 internal::smart_copy(other.m_data, other.m_data+other.m_rows*other.m_cols, m_data);
435 }
436 EIGEN_DEVICE_FUNC DenseStorage& operator=(const DenseStorage& other)
437 {
438 if (this != &other)
439 {
440 DenseStorage tmp(other);
441 this->swap(other&: tmp);
442 }
443 return *this;
444 }
445#if EIGEN_HAS_RVALUE_REFERENCES
446 EIGEN_DEVICE_FUNC
447 DenseStorage(DenseStorage&& other) EIGEN_NOEXCEPT
448 : m_data(std::move(other.m_data))
449 , m_rows(std::move(other.m_rows))
450 , m_cols(std::move(other.m_cols))
451 {
452 other.m_data = nullptr;
453 other.m_rows = 0;
454 other.m_cols = 0;
455 }
456 EIGEN_DEVICE_FUNC
457 DenseStorage& operator=(DenseStorage&& other) EIGEN_NOEXCEPT
458 {
459 numext::swap(m_data, other.m_data);
460 numext::swap(a&: m_rows, b&: other.m_rows);
461 numext::swap(a&: m_cols, b&: other.m_cols);
462 return *this;
463 }
464#endif
465 EIGEN_DEVICE_FUNC ~DenseStorage() { internal::conditional_aligned_delete_auto<T,(_Options&DontAlign)==0>(m_data, m_rows*m_cols); }
466 EIGEN_DEVICE_FUNC void swap(DenseStorage& other)
467 {
468 numext::swap(m_data,other.m_data);
469 numext::swap(a&: m_rows,b&: other.m_rows);
470 numext::swap(a&: m_cols,b&: other.m_cols);
471 }
472 EIGEN_DEVICE_FUNC Index rows(void) const EIGEN_NOEXCEPT {return m_rows;}
473 EIGEN_DEVICE_FUNC Index cols(void) const EIGEN_NOEXCEPT {return m_cols;}
474 void conservativeResize(Index size, Index rows, Index cols)
475 {
476 m_data = internal::conditional_aligned_realloc_new_auto<T,(_Options&DontAlign)==0>(m_data, size, m_rows*m_cols);
477 m_rows = rows;
478 m_cols = cols;
479 }
480 EIGEN_DEVICE_FUNC void resize(Index size, Index rows, Index cols)
481 {
482 if(size != m_rows*m_cols)
483 {
484 internal::conditional_aligned_delete_auto<T,(_Options&DontAlign)==0>(m_data, m_rows*m_cols);
485 if (size>0) // >0 and not simply !=0 to let the compiler knows that size cannot be negative
486 m_data = internal::conditional_aligned_new_auto<T,(_Options&DontAlign)==0>(size);
487 else
488 m_data = 0;
489 EIGEN_INTERNAL_DENSE_STORAGE_CTOR_PLUGIN({})
490 }
491 m_rows = rows;
492 m_cols = cols;
493 }
494 EIGEN_DEVICE_FUNC const T *data() const { return m_data; }
495 EIGEN_DEVICE_FUNC T *data() { return m_data; }
496};
497
498// matrix with dynamic width and fixed height (so that matrix has dynamic size).
499template<typename T, int _Rows, int _Options> class DenseStorage<T, Dynamic, _Rows, Dynamic, _Options>
500{
501 T *m_data;
502 Index m_cols;
503 public:
504 EIGEN_DEVICE_FUNC DenseStorage() : m_data(0), m_cols(0) {}
505 explicit DenseStorage(internal::constructor_without_unaligned_array_assert) : m_data(0), m_cols(0) {}
506 EIGEN_DEVICE_FUNC DenseStorage(Index size, Index rows, Index cols) : m_data(internal::conditional_aligned_new_auto<T,(_Options&DontAlign)==0>(size)), m_cols(cols)
507 {
508 EIGEN_INTERNAL_DENSE_STORAGE_CTOR_PLUGIN({})
509 eigen_internal_assert(size==rows*cols && rows==_Rows && cols >=0);
510 EIGEN_UNUSED_VARIABLE(rows);
511 }
512 EIGEN_DEVICE_FUNC DenseStorage(const DenseStorage& other)
513 : m_data(internal::conditional_aligned_new_auto<T,(_Options&DontAlign)==0>(_Rows*other.m_cols))
514 , m_cols(other.m_cols)
515 {
516 EIGEN_INTERNAL_DENSE_STORAGE_CTOR_PLUGIN(Index size = m_cols*_Rows)
517 internal::smart_copy(other.m_data, other.m_data+_Rows*m_cols, m_data);
518 }
519 EIGEN_DEVICE_FUNC DenseStorage& operator=(const DenseStorage& other)
520 {
521 if (this != &other)
522 {
523 DenseStorage tmp(other);
524 this->swap(other&: tmp);
525 }
526 return *this;
527 }
528#if EIGEN_HAS_RVALUE_REFERENCES
529 EIGEN_DEVICE_FUNC
530 DenseStorage(DenseStorage&& other) EIGEN_NOEXCEPT
531 : m_data(std::move(other.m_data))
532 , m_cols(std::move(other.m_cols))
533 {
534 other.m_data = nullptr;
535 other.m_cols = 0;
536 }
537 EIGEN_DEVICE_FUNC
538 DenseStorage& operator=(DenseStorage&& other) EIGEN_NOEXCEPT
539 {
540 numext::swap(m_data, other.m_data);
541 numext::swap(a&: m_cols, b&: other.m_cols);
542 return *this;
543 }
544#endif
545 EIGEN_DEVICE_FUNC ~DenseStorage() { internal::conditional_aligned_delete_auto<T,(_Options&DontAlign)==0>(m_data, _Rows*m_cols); }
546 EIGEN_DEVICE_FUNC void swap(DenseStorage& other) {
547 numext::swap(m_data,other.m_data);
548 numext::swap(a&: m_cols,b&: other.m_cols);
549 }
550 EIGEN_DEVICE_FUNC static EIGEN_CONSTEXPR Index rows(void) EIGEN_NOEXCEPT {return _Rows;}
551 EIGEN_DEVICE_FUNC Index cols(void) const EIGEN_NOEXCEPT {return m_cols;}
552 EIGEN_DEVICE_FUNC void conservativeResize(Index size, Index, Index cols)
553 {
554 m_data = internal::conditional_aligned_realloc_new_auto<T,(_Options&DontAlign)==0>(m_data, size, _Rows*m_cols);
555 m_cols = cols;
556 }
557 EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE void resize(Index size, Index, Index cols)
558 {
559 if(size != _Rows*m_cols)
560 {
561 internal::conditional_aligned_delete_auto<T,(_Options&DontAlign)==0>(m_data, _Rows*m_cols);
562 if (size>0) // >0 and not simply !=0 to let the compiler knows that size cannot be negative
563 m_data = internal::conditional_aligned_new_auto<T,(_Options&DontAlign)==0>(size);
564 else
565 m_data = 0;
566 EIGEN_INTERNAL_DENSE_STORAGE_CTOR_PLUGIN({})
567 }
568 m_cols = cols;
569 }
570 EIGEN_DEVICE_FUNC const T *data() const { return m_data; }
571 EIGEN_DEVICE_FUNC T *data() { return m_data; }
572};
573
574// matrix with dynamic height and fixed width (so that matrix has dynamic size).
575template<typename T, int _Cols, int _Options> class DenseStorage<T, Dynamic, Dynamic, _Cols, _Options>
576{
577 T *m_data;
578 Index m_rows;
579 public:
580 EIGEN_DEVICE_FUNC DenseStorage() : m_data(0), m_rows(0) {}
581 explicit DenseStorage(internal::constructor_without_unaligned_array_assert) : m_data(0), m_rows(0) {}
582 EIGEN_DEVICE_FUNC DenseStorage(Index size, Index rows, Index cols) : m_data(internal::conditional_aligned_new_auto<T,(_Options&DontAlign)==0>(size)), m_rows(rows)
583 {
584 EIGEN_INTERNAL_DENSE_STORAGE_CTOR_PLUGIN({})
585 eigen_internal_assert(size==rows*cols && rows>=0 && cols == _Cols);
586 EIGEN_UNUSED_VARIABLE(cols);
587 }
588 EIGEN_DEVICE_FUNC DenseStorage(const DenseStorage& other)
589 : m_data(internal::conditional_aligned_new_auto<T,(_Options&DontAlign)==0>(other.m_rows*_Cols))
590 , m_rows(other.m_rows)
591 {
592 EIGEN_INTERNAL_DENSE_STORAGE_CTOR_PLUGIN(Index size = m_rows*_Cols)
593 internal::smart_copy(other.m_data, other.m_data+other.m_rows*_Cols, m_data);
594 }
595 EIGEN_DEVICE_FUNC DenseStorage& operator=(const DenseStorage& other)
596 {
597 if (this != &other)
598 {
599 DenseStorage tmp(other);
600 this->swap(other&: tmp);
601 }
602 return *this;
603 }
604#if EIGEN_HAS_RVALUE_REFERENCES
605 EIGEN_DEVICE_FUNC
606 DenseStorage(DenseStorage&& other) EIGEN_NOEXCEPT
607 : m_data(std::move(other.m_data))
608 , m_rows(std::move(other.m_rows))
609 {
610 other.m_data = nullptr;
611 other.m_rows = 0;
612 }
613 EIGEN_DEVICE_FUNC
614 DenseStorage& operator=(DenseStorage&& other) EIGEN_NOEXCEPT
615 {
616 numext::swap(m_data, other.m_data);
617 numext::swap(a&: m_rows, b&: other.m_rows);
618 return *this;
619 }
620#endif
621 EIGEN_DEVICE_FUNC ~DenseStorage() { internal::conditional_aligned_delete_auto<T,(_Options&DontAlign)==0>(m_data, _Cols*m_rows); }
622 EIGEN_DEVICE_FUNC void swap(DenseStorage& other) {
623 numext::swap(m_data,other.m_data);
624 numext::swap(a&: m_rows,b&: other.m_rows);
625 }
626 EIGEN_DEVICE_FUNC Index rows(void) const EIGEN_NOEXCEPT {return m_rows;}
627 EIGEN_DEVICE_FUNC static EIGEN_CONSTEXPR Index cols(void) {return _Cols;}
628 void conservativeResize(Index size, Index rows, Index)
629 {
630 m_data = internal::conditional_aligned_realloc_new_auto<T,(_Options&DontAlign)==0>(m_data, size, m_rows*_Cols);
631 m_rows = rows;
632 }
633 EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE void resize(Index size, Index rows, Index)
634 {
635 if(size != m_rows*_Cols)
636 {
637 internal::conditional_aligned_delete_auto<T,(_Options&DontAlign)==0>(m_data, _Cols*m_rows);
638 if (size>0) // >0 and not simply !=0 to let the compiler knows that size cannot be negative
639 m_data = internal::conditional_aligned_new_auto<T,(_Options&DontAlign)==0>(size);
640 else
641 m_data = 0;
642 EIGEN_INTERNAL_DENSE_STORAGE_CTOR_PLUGIN({})
643 }
644 m_rows = rows;
645 }
646 EIGEN_DEVICE_FUNC const T *data() const { return m_data; }
647 EIGEN_DEVICE_FUNC T *data() { return m_data; }
648};
649
650} // end namespace Eigen
651
652#endif // EIGEN_MATRIX_H
653

source code of qtmultimedia/src/3rdparty/eigen/Eigen/src/Core/DenseStorage.h