1 /*M///////////////////////////////////////////////////////////////////////////////////////
2 //
3 // IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
4 //
5 // By downloading, copying, installing or using the software you agree to this license.
6 // If you do not agree to this license, do not download, install,
7 // copy or use the software.
8 //
9 //
10 // Intel License Agreement
11 // For Open Source Computer Vision Library
12 //
13 // Copyright (C) 2000, Intel Corporation, all rights reserved.
14 // Third party copyrights are property of their respective owners.
15 //
16 // Redistribution and use in source and binary forms, with or without modification,
17 // are permitted provided that the following conditions are met:
18 //
19 // * Redistribution's of source code must retain the above copyright notice,
20 // this list of conditions and the following disclaimer.
21 //
22 // * Redistribution's in binary form must reproduce the above copyright notice,
23 // this list of conditions and the following disclaimer in the documentation
24 // and/or other materials provided with the distribution.
25 //
26 // * The name of Intel Corporation may not be used to endorse or promote products
27 // derived from this software without specific prior written permission.
28 //
29 // This software is provided by the copyright holders and contributors "as is" and
30 // any express or implied warranties, including, but not limited to, the implied
31 // warranties of merchantability and fitness for a particular purpose are disclaimed.
32 // In no event shall the Intel Corporation or contributors be liable for any direct,
33 // indirect, incidental, special, exemplary, or consequential damages
34 // (including, but not limited to, procurement of substitute goods or services;
35 // loss of use, data, or profits; or business interruption) however caused
36 // and on any theory of liability, whether in contract, strict liability,
37 // or tort (including negligence or otherwise) arising in any way out of
38 // the use of this software, even if advised of the possibility of such damage.
39 //
40 //M*/
41
42 #ifndef _UTILS_H_
43 #define _UTILS_H_
44
45 struct PaletteEntry
46 {
47 unsigned char b, g, r, a;
48 };
49
50 #define WRITE_PIX( ptr, clr ) \
51 (((uchar*)(ptr))[0] = (clr).b, \
52 ((uchar*)(ptr))[1] = (clr).g, \
53 ((uchar*)(ptr))[2] = (clr).r)
54
55 #define descale(x,n) (((x) + (1 << ((n)-1))) >> (n))
56 #define saturate(x) (uchar)(((x) & ~255) == 0 ? (x) : ~((x)>>31))
57
58 void icvCvt_BGR2Gray_8u_C3C1R( const uchar* bgr, int bgr_step,
59 uchar* gray, int gray_step,
60 CvSize size, int swap_rb=0 );
61 void icvCvt_BGRA2Gray_8u_C4C1R( const uchar* bgra, int bgra_step,
62 uchar* gray, int gray_step,
63 CvSize size, int swap_rb=0 );
64 void icvCvt_BGRA2Gray_16u_CnC1R( const ushort* bgra, int bgra_step,
65 ushort* gray, int gray_step,
66 CvSize size, int ncn, int swap_rb=0 );
67
68 void icvCvt_Gray2BGR_8u_C1C3R( const uchar* gray, int gray_step,
69 uchar* bgr, int bgr_step, CvSize size );
70 void icvCvt_Gray2BGR_16u_C1C3R( const ushort* gray, int gray_step,
71 ushort* bgr, int bgr_step, CvSize size );
72
73 void icvCvt_BGRA2BGR_8u_C4C3R( const uchar* bgra, int bgra_step,
74 uchar* bgr, int bgr_step,
75 CvSize size, int swap_rb=0 );
76 void icvCvt_BGRA2BGR_16u_C4C3R( const ushort* bgra, int bgra_step,
77 ushort* bgr, int bgr_step,
78 CvSize size, int _swap_rb );
79
80 void icvCvt_BGR2RGB_8u_C3R( const uchar* bgr, int bgr_step,
81 uchar* rgb, int rgb_step, CvSize size );
82 #define icvCvt_RGB2BGR_8u_C3R icvCvt_BGR2RGB_8u_C3R
83 void icvCvt_BGR2RGB_16u_C3R( const ushort* bgr, int bgr_step,
84 ushort* rgb, int rgb_step, CvSize size );
85 #define icvCvt_RGB2BGR_16u_C3R icvCvt_BGR2RGB_16u_C3R
86
87 void icvCvt_BGRA2RGBA_8u_C4R( const uchar* bgra, int bgra_step,
88 uchar* rgba, int rgba_step, CvSize size );
89 #define icvCvt_RGBA2BGRA_8u_C4R icvCvt_BGRA2RGBA_8u_C4R
90
91 void icvCvt_BGRA2RGBA_16u_C4R( const ushort* bgra, int bgra_step,
92 ushort* rgba, int rgba_step, CvSize size );
93 #define icvCvt_RGBA2BGRA_16u_C4R icvCvt_BGRA2RGBA_16u_C4R
94
95 void icvCvt_BGR5552Gray_8u_C2C1R( const uchar* bgr555, int bgr555_step,
96 uchar* gray, int gray_step, CvSize size );
97 void icvCvt_BGR5652Gray_8u_C2C1R( const uchar* bgr565, int bgr565_step,
98 uchar* gray, int gray_step, CvSize size );
99 void icvCvt_BGR5552BGR_8u_C2C3R( const uchar* bgr555, int bgr555_step,
100 uchar* bgr, int bgr_step, CvSize size );
101 void icvCvt_BGR5652BGR_8u_C2C3R( const uchar* bgr565, int bgr565_step,
102 uchar* bgr, int bgr_step, CvSize size );
103 void icvCvt_CMYK2BGR_8u_C4C3R( const uchar* cmyk, int cmyk_step,
104 uchar* bgr, int bgr_step, CvSize size );
105 void icvCvt_CMYK2Gray_8u_C4C1R( const uchar* ycck, int ycck_step,
106 uchar* gray, int gray_step, CvSize size );
107
108 void FillGrayPalette( PaletteEntry* palette, int bpp, bool negative = false );
109 bool IsColorPalette( PaletteEntry* palette, int bpp );
110 void CvtPaletteToGray( const PaletteEntry* palette, uchar* grayPalette, int entries );
111 uchar* FillUniColor( uchar* data, uchar*& line_end, int step, int width3,
112 int& y, int height, int count3, PaletteEntry clr );
113 uchar* FillUniGray( uchar* data, uchar*& line_end, int step, int width3,
114 int& y, int height, int count3, uchar clr );
115
116 uchar* FillColorRow8( uchar* data, uchar* indices, int len, PaletteEntry* palette );
117 uchar* FillGrayRow8( uchar* data, uchar* indices, int len, uchar* palette );
118 uchar* FillColorRow4( uchar* data, uchar* indices, int len, PaletteEntry* palette );
119 uchar* FillGrayRow4( uchar* data, uchar* indices, int len, uchar* palette );
120 uchar* FillColorRow1( uchar* data, uchar* indices, int len, PaletteEntry* palette );
121 uchar* FillGrayRow1( uchar* data, uchar* indices, int len, uchar* palette );
122
isBigEndian(void)123 CV_INLINE bool isBigEndian( void )
124 {
125 return (((const int*)"\0\x1\x2\x3\x4\x5\x6\x7")[0] & 255) != 0;
126 }
127
128 #endif/*_UTILS_H_*/
129