/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  | 0  |     _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  | 0  |     _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  |