mirror of
https://github.com/unidoc/unipdf.git
synced 2025-05-01 22:17:29 +08:00
e85616cec2
* Prepared skeleton and basic component implementations for the jbig2 encoding. * Added Bitset. Implemented Bitmap. * Decoder with old Arithmetic Decoder * Partly working arithmetic * Working arithmetic decoder. * MMR patched. * rebuild to apache. * Working generic * Decoded full document * Decoded AnnexH document * Minor issues fixed. * Update README.md * Fixed generic region errors. Added benchmark. Added bitmap unpadder. Added Bitmap toImage method. * Fixed endofpage error * Added integration test. * Decoded all test files without errors. Implemented JBIG2Global. * Merged with v3 version * Fixed the EOF in the globals issue * Fixed the JBIG2 ChocolateData Decode * JBIG2 Added license information * Minor fix in jbig2 encoding. * Applied the logging convention * Cleaned unnecessary imports * Go modules clear unused imports * checked out the README.md * Moved trace to Debug. Fixed the build integrate tag in the document_decode_test.go * Applied UniPDF Developer Guide. Fixed lint issues. * Cleared documentation, fixed style issues. * Added jbig2 doc.go files. Applied unipdf guide style. * Minor code style changes. * Minor naming and style issues fixes. * Minor naming changes. Style issues fixed. * Review r11 fixes. * Integrate jbig2 tests with build system * Added jbig2 integration test golden files. * Minor jbig2 integration test fix * Removed jbig2 integration image assertions * Fixed jbig2 rowstride issue. Implemented jbig2 bit writer * Changed golden files logic. Fixes r13 issues.
116 lines
5.0 KiB
Go
116 lines
5.0 KiB
Go
/*
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* This file is subject to the terms and conditions defined in
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* file 'LICENSE.md', which is part of this source code package.
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*/
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package segments
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// Type defines the jbig2 segment type - see 7.3.
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type Type int
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// Enumerate segment type definitions.
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const (
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TSymbolDictionary Type = 0
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TIntermediateTextRegion Type = 4
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TImmediateTextRegion Type = 6
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TImmediateLosslessTextRegion Type = 7
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TPatternDictionary Type = 16
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TIntermediateHalftoneRegion Type = 20
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TImmediateHalftoneRegion Type = 22
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TImmediateLosslessHalftoneRegion Type = 23
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TIntermediateGenericRegion Type = 36
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TImmediateGenericRegion Type = 38
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TImmediateLosslessGenericRegion Type = 39
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TIntermediateGenericRefinementRegion Type = 40
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TImmediateGenericRefinementRegion Type = 42
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TImmediateLosslessGenericRefinementRegion Type = 43
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TPageInformation Type = 48
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TEndOfPage Type = 49
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TEndOfStrip Type = 50
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TEndOfFile Type = 51
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TProfiles Type = 52
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TTables Type = 53
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TExtension Type = 62
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TBitmap Type = 70
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)
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// String implements Stringer interface.
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func (k Type) String() string {
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switch k {
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case TSymbolDictionary:
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return "Symbol Dictionary"
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case TIntermediateTextRegion:
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return "Intermediate Text Region"
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case TImmediateTextRegion:
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return "Immediate Text Region"
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case TImmediateLosslessTextRegion:
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return "Immediate Lossless Text Region"
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case TPatternDictionary:
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return "Pattern Dictionary"
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case TIntermediateHalftoneRegion:
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return "Intermediate Halftone Region"
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case TImmediateHalftoneRegion:
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return "Immediate Halftone Region"
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case TImmediateLosslessHalftoneRegion:
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return "Immediate Lossless Halftone Region"
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case TIntermediateGenericRegion:
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return "Intermediate Generic Region"
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case TImmediateGenericRegion:
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return "Immediate Generic Region"
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case TImmediateLosslessGenericRegion:
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return "Immediate Lossless Generic Region"
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case TIntermediateGenericRefinementRegion:
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return "Intermediate Generic Refinement Region"
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case TImmediateGenericRefinementRegion:
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return "Immediate Generic Refinement Region"
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case TImmediateLosslessGenericRefinementRegion:
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return "Immediate Lossless Generic Refinement Region"
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case TPageInformation:
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return "Page Information"
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case TEndOfPage:
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return "End Of Page"
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case TEndOfStrip:
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return "End Of Strip"
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case TEndOfFile:
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return "End Of File"
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case TProfiles:
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return "Profiles"
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case TTables:
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return "Tables"
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case TExtension:
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return "Extension"
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case TBitmap:
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return "Bitmap"
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}
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return "Invalid Segment Kind"
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}
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// set the segment type number to it's creator function.
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var (
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emptySegment Segmenter
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kindMap = map[Type]func() Segmenter{
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TSymbolDictionary: func() Segmenter { return &SymbolDictionary{} },
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TIntermediateTextRegion: func() Segmenter { return &TextRegion{} },
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TImmediateTextRegion: func() Segmenter { return &TextRegion{} },
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TImmediateLosslessTextRegion: func() Segmenter { return &TextRegion{} },
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TPatternDictionary: func() Segmenter { return &PatternDictionary{} },
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TIntermediateHalftoneRegion: func() Segmenter { return &HalftoneRegion{} },
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TImmediateHalftoneRegion: func() Segmenter { return &HalftoneRegion{} },
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TImmediateLosslessHalftoneRegion: func() Segmenter { return &HalftoneRegion{} },
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TIntermediateGenericRegion: func() Segmenter { return &GenericRegion{} },
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TImmediateGenericRegion: func() Segmenter { return &GenericRegion{} },
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TImmediateLosslessGenericRegion: func() Segmenter { return &GenericRegion{} },
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TIntermediateGenericRefinementRegion: func() Segmenter { return &GenericRefinementRegion{} },
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TImmediateGenericRefinementRegion: func() Segmenter { return &GenericRefinementRegion{} },
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TImmediateLosslessGenericRefinementRegion: func() Segmenter { return &GenericRefinementRegion{} },
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TPageInformation: func() Segmenter { return &PageInformationSegment{} },
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TEndOfPage: func() Segmenter { return emptySegment },
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TEndOfStrip: func() Segmenter { return &EndOfStripe{} },
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TEndOfFile: func() Segmenter { return emptySegment },
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TProfiles: func() Segmenter { return emptySegment },
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TTables: func() Segmenter { return &TableSegment{} },
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TExtension: func() Segmenter { return emptySegment },
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TBitmap: func() Segmenter { return emptySegment },
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}
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)
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