/src/freeimage-svn/FreeImage/trunk/Source/OpenEXR/IlmImf/ImfArray.h
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1 | | /////////////////////////////////////////////////////////////////////////// |
2 | | // |
3 | | // Copyright (c) 2002, Industrial Light & Magic, a division of Lucas |
4 | | // Digital Ltd. LLC |
5 | | // |
6 | | // All rights reserved. |
7 | | // |
8 | | // Redistribution and use in source and binary forms, with or without |
9 | | // modification, are permitted provided that the following conditions are |
10 | | // met: |
11 | | // * Redistributions of source code must retain the above copyright |
12 | | // notice, this list of conditions and the following disclaimer. |
13 | | // * Redistributions in binary form must reproduce the above |
14 | | // copyright notice, this list of conditions and the following disclaimer |
15 | | // in the documentation and/or other materials provided with the |
16 | | // distribution. |
17 | | // * Neither the name of Industrial Light & Magic nor the names of |
18 | | // its contributors may be used to endorse or promote products derived |
19 | | // from this software without specific prior written permission. |
20 | | // |
21 | | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
22 | | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
23 | | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
24 | | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
25 | | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
26 | | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
27 | | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
28 | | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
29 | | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
30 | | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
31 | | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
32 | | // |
33 | | /////////////////////////////////////////////////////////////////////////// |
34 | | |
35 | | |
36 | | |
37 | | #ifndef INCLUDED_IMF_ARRAY_H |
38 | | #define INCLUDED_IMF_ARRAY_H |
39 | | |
40 | | #include "ImfForward.h" |
41 | | |
42 | | //------------------------------------------------------------------------- |
43 | | // |
44 | | // class Array |
45 | | // class Array2D |
46 | | // |
47 | | // "Arrays of T" whose sizes are not known at compile time. |
48 | | // When an array goes out of scope, its elements are automatically |
49 | | // deleted. |
50 | | // |
51 | | // Usage example: |
52 | | // |
53 | | // struct C |
54 | | // { |
55 | | // C () {std::cout << "C::C (" << this << ")\n";}; |
56 | | // virtual ~C () {std::cout << "C::~C (" << this << ")\n";}; |
57 | | // }; |
58 | | // |
59 | | // int |
60 | | // main () |
61 | | // { |
62 | | // Array <C> a(3); |
63 | | // |
64 | | // C &b = a[1]; |
65 | | // const C &c = a[1]; |
66 | | // C *d = a + 2; |
67 | | // const C *e = a; |
68 | | // |
69 | | // return 0; |
70 | | // } |
71 | | // |
72 | | //------------------------------------------------------------------------- |
73 | | |
74 | | OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER |
75 | | |
76 | | template <class T> |
77 | | class Array |
78 | | { |
79 | | public: |
80 | | |
81 | | //----------------------------- |
82 | | // Constructors and destructors |
83 | | //----------------------------- |
84 | | |
85 | 0 | Array () {_data = 0; _size = 0;} Unexecuted instantiation: Imf_2_2::Array<char>::Array() Unexecuted instantiation: Imf_2_2::Array<unsigned int>::Array() Unexecuted instantiation: Imf_2_2::Array<bool>::Array() |
86 | 0 | Array (long size) {_data = new T[size]; _size = size;} |
87 | 0 | ~Array () {delete [] _data;} Unexecuted instantiation: Imf_2_2::Array<char>::~Array() Unexecuted instantiation: Imf_2_2::Array<unsigned int>::~Array() Unexecuted instantiation: Imf_2_2::Array<bool>::~Array() |
88 | | |
89 | | |
90 | | //----------------------------- |
91 | | // Access to the array elements |
92 | | //----------------------------- |
93 | | |
94 | 0 | operator T * () {return _data;} Unexecuted instantiation: Imf_2_2::Array<char>::operator char*() Unexecuted instantiation: Imf_2_2::Array<unsigned int>::operator unsigned int*() Unexecuted instantiation: Imf_2_2::Array<bool>::operator bool*() |
95 | 0 | operator const T * () const {return _data;} |
96 | | |
97 | | |
98 | | //------------------------------------------------------ |
99 | | // Resize and clear the array (the contents of the array |
100 | | // are not preserved across the resize operation). |
101 | | // |
102 | | // resizeEraseUnsafe() is more memory efficient than |
103 | | // resizeErase() because it deletes the old memory block |
104 | | // before allocating a new one, but if allocating the |
105 | | // new block throws an exception, resizeEraseUnsafe() |
106 | | // leaves the array in an unusable state. |
107 | | // |
108 | | //------------------------------------------------------ |
109 | | |
110 | | void resizeErase (long size); |
111 | | void resizeEraseUnsafe (long size); |
112 | | |
113 | | |
114 | | //------------------------------- |
115 | | // Return the size of this array. |
116 | | //------------------------------- |
117 | | |
118 | 0 | long size() const {return _size;} |
119 | | |
120 | | |
121 | | private: |
122 | | |
123 | | Array (const Array &); // Copying and assignment |
124 | | Array & operator = (const Array &); // are not implemented |
125 | | |
126 | | long _size; |
127 | | T * _data; |
128 | | }; |
129 | | |
130 | | |
131 | | template <class T> |
132 | | class Array2D |
133 | | { |
134 | | public: |
135 | | |
136 | | //----------------------------- |
137 | | // Constructors and destructors |
138 | | //----------------------------- |
139 | | |
140 | | Array2D (); // empty array, 0 by 0 elements |
141 | | Array2D (long sizeX, long sizeY); // sizeX by sizeY elements |
142 | | ~Array2D (); |
143 | | |
144 | | |
145 | | //----------------------------- |
146 | | // Access to the array elements |
147 | | //----------------------------- |
148 | | |
149 | | T * operator [] (long x); |
150 | | const T * operator [] (long x) const; |
151 | | |
152 | | |
153 | | //------------------------------------------------------ |
154 | | // Resize and clear the array (the contents of the array |
155 | | // are not preserved across the resize operation). |
156 | | // |
157 | | // resizeEraseUnsafe() is more memory efficient than |
158 | | // resizeErase() because it deletes the old memory block |
159 | | // before allocating a new one, but if allocating the |
160 | | // new block throws an exception, resizeEraseUnsafe() |
161 | | // leaves the array in an unusable state. |
162 | | // |
163 | | //------------------------------------------------------ |
164 | | |
165 | | void resizeErase (long sizeX, long sizeY); |
166 | | void resizeEraseUnsafe (long sizeX, long sizeY); |
167 | | |
168 | | |
169 | | //------------------------------- |
170 | | // Return the size of this array. |
171 | | //------------------------------- |
172 | | |
173 | | long height() const {return _sizeX;} |
174 | | long width() const {return _sizeY;} |
175 | | |
176 | | |
177 | | private: |
178 | | |
179 | | Array2D (const Array2D &); // Copying and assignment |
180 | | Array2D & operator = (const Array2D &); // are not implemented |
181 | | |
182 | | long _sizeX; |
183 | | long _sizeY; |
184 | | T * _data; |
185 | | }; |
186 | | |
187 | | |
188 | | //--------------- |
189 | | // Implementation |
190 | | //--------------- |
191 | | |
192 | | template <class T> |
193 | | inline void |
194 | | Array<T>::resizeErase (long size) |
195 | 0 | { |
196 | 0 | T *tmp = new T[size]; |
197 | 0 | delete [] _data; |
198 | 0 | _size = size; |
199 | 0 | _data = tmp; |
200 | 0 | } Unexecuted instantiation: Imf_2_2::Array<char>::resizeErase(long) Unexecuted instantiation: Imf_2_2::Array<unsigned int>::resizeErase(long) Unexecuted instantiation: Imf_2_2::Array<bool>::resizeErase(long) |
201 | | |
202 | | |
203 | | template <class T> |
204 | | inline void |
205 | | Array<T>::resizeEraseUnsafe (long size) |
206 | | { |
207 | | delete [] _data; |
208 | | _data = 0; |
209 | | _size = 0; |
210 | | _data = new T[size]; |
211 | | _size = size; |
212 | | } |
213 | | |
214 | | |
215 | | template <class T> |
216 | | inline |
217 | | Array2D<T>::Array2D (): |
218 | | _sizeX(0), _sizeY (0), _data (0) |
219 | 0 | { |
220 | | // emtpy |
221 | 0 | } |
222 | | |
223 | | |
224 | | template <class T> |
225 | | inline |
226 | | Array2D<T>::Array2D (long sizeX, long sizeY): |
227 | | _sizeX (sizeX), _sizeY (sizeY), _data (new T[sizeX * sizeY]) |
228 | 0 | { |
229 | | // emtpy |
230 | 0 | } |
231 | | |
232 | | |
233 | | template <class T> |
234 | | inline |
235 | | Array2D<T>::~Array2D () |
236 | 0 | { |
237 | 0 | delete [] _data; |
238 | 0 | } Unexecuted instantiation: Imf_2_2::Array2D<Imf_2_2::Rgba>::~Array2D() Unexecuted instantiation: Imf_2_2::Array2D<unsigned int>::~Array2D() |
239 | | |
240 | | |
241 | | template <class T> |
242 | | inline T * |
243 | | Array2D<T>::operator [] (long x) |
244 | 0 | { |
245 | 0 | return _data + x * _sizeY; |
246 | 0 | } Unexecuted instantiation: Imf_2_2::Array2D<Imf_2_2::Rgba>::operator[](long) Unexecuted instantiation: Imf_2_2::Array2D<unsigned int>::operator[](long) |
247 | | |
248 | | |
249 | | template <class T> |
250 | | inline const T * |
251 | | Array2D<T>::operator [] (long x) const |
252 | | { |
253 | | return _data + x * _sizeY; |
254 | | } |
255 | | |
256 | | |
257 | | template <class T> |
258 | | inline void |
259 | | Array2D<T>::resizeErase (long sizeX, long sizeY) |
260 | 0 | { |
261 | 0 | T *tmp = new T[sizeX * sizeY]; |
262 | 0 | delete [] _data; |
263 | 0 | _sizeX = sizeX; |
264 | 0 | _sizeY = sizeY; |
265 | 0 | _data = tmp; |
266 | 0 | } |
267 | | |
268 | | |
269 | | template <class T> |
270 | | inline void |
271 | | Array2D<T>::resizeEraseUnsafe (long sizeX, long sizeY) |
272 | | { |
273 | | delete [] _data; |
274 | | _data = 0; |
275 | | _sizeX = 0; |
276 | | _sizeY = 0; |
277 | | _data = new T[sizeX * sizeY]; |
278 | | _sizeX = sizeX; |
279 | | _sizeY = sizeY; |
280 | | } |
281 | | |
282 | | OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT |
283 | | |
284 | | |
285 | | #endif |