60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
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/* Copyright (C) 2001-2019 Artifex Software, Inc.
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All Rights Reserved.
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This software is provided AS-IS with no warranty, either express or
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implied.
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This software is distributed under license and may not be copied,
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modified or distributed except as expressly authorized under the terms
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of the license contained in the file LICENSE in this distribution.
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Refer to licensing information at http://www.artifex.com or contact
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Artifex Software, Inc., 1305 Grant Avenue - Suite 200, Novato,
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CA 94945, U.S.A., +1(415)492-9861, for further information.
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*/
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/*
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jbig2dec
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*/
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#ifndef _JBIG2_HALFTONE_H
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#define _JBIG2_HALFTONE_H
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typedef struct {
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int n_patterns;
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Jbig2Image **patterns;
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int HPW, HPH;
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} Jbig2PatternDict;
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/* Table 24 */
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typedef struct {
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bool HDMMR;
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uint32_t HDPW;
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uint32_t HDPH;
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uint32_t GRAYMAX;
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int HDTEMPLATE;
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} Jbig2PatternDictParams;
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/* Table 33 */
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typedef struct {
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byte flags;
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uint32_t HGW;
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uint32_t HGH;
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int32_t HGX;
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int32_t HGY;
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uint16_t HRX;
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uint16_t HRY;
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bool HMMR;
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int HTEMPLATE;
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bool HENABLESKIP;
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Jbig2ComposeOp HCOMBOP;
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bool HDEFPIXEL;
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} Jbig2HalftoneRegionParams;
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void jbig2_hd_release(Jbig2Ctx *ctx, Jbig2PatternDict *dict);
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int jbig2_halftone_region(Jbig2Ctx *ctx, Jbig2Segment *segment, const byte *segment_data);
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int jbig2_pattern_dictionary(Jbig2Ctx *ctx, Jbig2Segment *segment, const byte *segment_data);
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#endif /* _JBIG2_HALFTONE_H */
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