54 lines
1.6 KiB
C
54 lines
1.6 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_PAGE_H
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#define _JBIG2_PAGE_H
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/* the page structure handles decoded page
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results. it's allocated by a 'page info'
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segment and marked complete by an 'end of page'
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segment.
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*/
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typedef enum {
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JBIG2_PAGE_FREE,
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JBIG2_PAGE_NEW,
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JBIG2_PAGE_COMPLETE,
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JBIG2_PAGE_RETURNED,
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JBIG2_PAGE_RELEASED
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} Jbig2PageState;
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struct _Jbig2Page {
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Jbig2PageState state;
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uint32_t number;
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uint32_t height, width; /* in pixels */
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uint32_t x_resolution, y_resolution; /* in pixels per meter */
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uint16_t stripe_size;
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bool striped;
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uint32_t end_row;
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uint8_t flags;
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Jbig2Image *image;
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};
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int jbig2_page_info(Jbig2Ctx *ctx, Jbig2Segment *segment, const uint8_t *segment_data);
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int jbig2_end_of_stripe(Jbig2Ctx *ctx, Jbig2Segment *segment, const uint8_t *segment_data);
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int jbig2_end_of_page(Jbig2Ctx *ctx, Jbig2Segment *segment, const uint8_t *segment_data);
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int jbig2_page_add_result(Jbig2Ctx *ctx, Jbig2Page *page, Jbig2Image *src, uint32_t x, uint32_t y, Jbig2ComposeOp op);
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#endif /* _JBIG2_PAGE_H */
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