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Issue 1416783002: Merge to M46: upgrade openjpeg to commit# cf352af (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@2490
Patch Set: Fix pdfium:168 since we are already half way there Created 5 years, 2 months ago
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1 /* 1 /*
2 * The copyright in this software is being made available under the 2-clauses 2 * The copyright in this software is being made available under the 2-clauses
3 * BSD License, included below. This software may be subject to other third 3 * BSD License, included below. This software may be subject to other third
4 * party and contributor rights, including patent rights, and no such rights 4 * party and contributor rights, including patent rights, and no such rights
5 * are granted under this license. 5 * are granted under this license.
6 * 6 *
7 * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium 7 * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
8 * Copyright (c) 2002-2014, Professor Benoit Macq 8 * Copyright (c) 2002-2014, Professor Benoit Macq
9 * Copyright (c) 2001-2003, David Janssens 9 * Copyright (c) 2001-2003, David Janssens
10 * Copyright (c) 2002-2003, Yannick Verschueren 10 * Copyright (c) 2002-2003, Yannick Verschueren
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47 */ 47 */
48 48
49 /** @defgroup DWT DWT - Implementation of a discrete wavelet transform */ 49 /** @defgroup DWT DWT - Implementation of a discrete wavelet transform */
50 /*@{*/ 50 /*@{*/
51 51
52 52
53 /** @name Exported functions */ 53 /** @name Exported functions */
54 /*@{*/ 54 /*@{*/
55 /* ----------------------------------------------------------------------- */ 55 /* ----------------------------------------------------------------------- */
56 /** 56 /**
57 Forward 5-3 wavelet tranform in 2-D. 57 Forward 5-3 wavelet transform in 2-D.
58 Apply a reversible DWT transform to a component of an image. 58 Apply a reversible DWT transform to a component of an image.
59 @param tilec Tile component information (current tile) 59 @param tilec Tile component information (current tile)
60 */ 60 */
61 OPJ_BOOL opj_dwt_encode(opj_tcd_tilecomp_t * tilec); 61 OPJ_BOOL opj_dwt_encode(opj_tcd_tilecomp_t * tilec);
62 62
63 /** 63 /**
64 Inverse 5-3 wavelet tranform in 2-D. 64 Inverse 5-3 wavelet transform in 2-D.
65 Apply a reversible inverse DWT transform to a component of an image. 65 Apply a reversible inverse DWT transform to a component of an image.
66 @param tilec Tile component information (current tile) 66 @param tilec Tile component information (current tile)
67 @param numres Number of resolution levels to decode 67 @param numres Number of resolution levels to decode
68 */ 68 */
69 OPJ_BOOL opj_dwt_decode(opj_tcd_tilecomp_t* tilec, OPJ_UINT32 numres); 69 OPJ_BOOL opj_dwt_decode(opj_tcd_tilecomp_t* tilec, OPJ_UINT32 numres);
70 70
71 /** 71 /**
72 Get the gain of a subband for the reversible 5-3 DWT. 72 Get the gain of a subband for the reversible 5-3 DWT.
73 @param orient Number that identifies the subband (0->LL, 1->HL, 2->LH, 3->HH) 73 @param orient Number that identifies the subband (0->LL, 1->HL, 2->LH, 3->HH)
74 @return Returns 0 if orient = 0, returns 1 if orient = 1 or 2, returns 2 otherwi se 74 @return Returns 0 if orient = 0, returns 1 if orient = 1 or 2, returns 2 otherwi se
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113 @param tccp Tile-component coding parameters 113 @param tccp Tile-component coding parameters
114 @param prec Precint analyzed 114 @param prec Precint analyzed
115 */ 115 */
116 void opj_dwt_calc_explicit_stepsizes(opj_tccp_t * tccp, OPJ_UINT32 prec); 116 void opj_dwt_calc_explicit_stepsizes(opj_tccp_t * tccp, OPJ_UINT32 prec);
117 /* ----------------------------------------------------------------------- */ 117 /* ----------------------------------------------------------------------- */
118 /*@}*/ 118 /*@}*/
119 119
120 /*@}*/ 120 /*@}*/
121 121
122 #endif /* __DWT_H */ 122 #endif /* __DWT_H */
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