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SbImage.h
1 #ifndef COIN_SBIMAGE_H
2 #define COIN_SBIMAGE_H
3
4 /**************************************************************************\
5 *
6 * This file is part of the Coin 3D visualization library.
7 * Copyright (C) by Kongsberg Oil & Gas Technologies.
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * ("GPL") version 2 as published by the Free Software Foundation.
12 * See the file LICENSE.GPL at the root directory of this source
13 * distribution for additional information about the GNU GPL.
14 *
15 * For using Coin with software that can not be combined with the GNU
16 * GPL, and for taking advantage of the additional benefits of our
17 * support services, please contact Kongsberg Oil & Gas Technologies
18 * about acquiring a Coin Professional Edition License.
19 *
20 * See http://www.coin3d.org/ for more information.
21 *
22 * Kongsberg Oil & Gas Technologies, Bygdoy Alle 5, 0257 Oslo, NORWAY.
23 * http://www.sim.no/ sales@sim.no coin-support@coin3d.org
24 *
25 \**************************************************************************/
26
27 #include <Inventor/SbVec2s.h>
28 #include <Inventor/SbVec3s.h>
29 #include <Inventor/SbString.h>
30 #include <stddef.h> // for NULL
31
32 class SbImage;
33
34 typedef SbBool SbImageScheduleReadCB(const SbString &, SbImage *, void *);
35 typedef SbBool SbImageReadImageCB(const SbString &, SbImage *, void *);
36
37 class COIN_DLL_API SbImage {
38 public:
39 SbImage(void);
40 SbImage(const unsigned char * bytes,
41 const SbVec2s & size, const int bytesperpixel);
42 SbImage(const unsigned char * bytes,
43 const SbVec3s & size, const int bytesperpixel);
44 ~SbImage();
45
46 void setValue(const SbVec2s & size, const int bytesperpixel,
47 const unsigned char * bytes);
48 void setValue(const SbVec3s & size, const int bytesperpixel,
49 const unsigned char * bytes);
50 void setValuePtr(const SbVec2s & size, const int bytesperpixel,
51 const unsigned char * bytes);
52 void setValuePtr(const SbVec3s & size, const int bytesperpixel,
53 const unsigned char * bytes);
54 unsigned char * getValue(SbVec2s & size, int & bytesperpixel) const;
55 unsigned char * getValue(SbVec3s & size, int & bytesperpixel) const;
56 SbVec3s getSize(void) const;
57
58 SbBool readFile(const SbString & filename,
59 const SbString * const * searchdirectories = NULL,
60 const int numdirectories = 0);
61
62 int operator==(const SbImage & image) const;
63 int operator!=(const SbImage & image) const {
64 return ! operator == (image);
65 }
66 SbImage & operator=(const SbImage & image);
67
68 static void addReadImageCB(SbImageReadImageCB * cb, void * closure);
69 static void removeReadImageCB(SbImageReadImageCB * cb, void * closure);
70
71 static SbString searchForFile(const SbString & basename,
72 const SbString * const * dirlist,
73 const int numdirs);
74
75 SbBool hasData(void) const;
76
77 private:
78
79 class SbImageP * pimpl;
80
81 public:
82
83 // methods for delaying image loading until it is actually needed.
84 void readLock(void) const;
85 void readUnlock(void) const;
86
87 SbBool scheduleReadFile(SbImageScheduleReadCB * cb,
88 void * closure,
89 const SbString & filename,
90 const SbString * const * searchdirectories = NULL,
91 const int numdirectories = 0);
92 };
93
94 #endif // !COIN_SBIMAGE_H

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