mirror of
https://github.com/unidoc/unipdf.git
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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.
103 lines
2.8 KiB
Go
103 lines
2.8 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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import (
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/unidoc/unipdf/v3/common"
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"github.com/unidoc/unipdf/v3/internal/jbig2/bitmap"
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"github.com/unidoc/unipdf/v3/internal/jbig2/reader"
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)
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// TestDecodeGenericRegion tests the decode process of the jbig2 Generic Region.
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func TestDecodeGenericRegion(t *testing.T) {
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if testing.Verbose() {
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common.SetLogger(common.NewConsoleLogger(common.LogLevelDebug))
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}
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t.Run("AnnexH", func(t *testing.T) {
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t.Run("S-12th", func(t *testing.T) {
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data := []byte{
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// header
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0x00, 0x00, 0x00, 0x0B, 0x27, 0x00, 0x02, 0x00, 0x00, 0x00, 0x23,
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// data
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0x00, 0x00, 0x00, 0x36, 0x00, 0x00, 0x00, 0x2C, 0x00, 0x00, 0x00, 0x04,
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0x00, 0x00, 0x00, 0x0B, 0x00, 0x08, 0x03, 0xFF, 0xFD, 0xFF, 0x02, 0xFE,
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0xFE, 0xFE, 0x04, 0xEE, 0xED, 0x87, 0xFB, 0xCB, 0x2B, 0xFF, 0xAC,
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}
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r := reader.New(data)
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d := &document{}
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h, err := NewHeader(d, r, 0, OSequential)
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require.NoError(t, err)
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assert.Equal(t, uint32(11), h.SegmentNumber)
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assert.Equal(t, uint64(35), h.SegmentDataLength)
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assert.Equal(t, 2, h.PageAssociation)
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sg, err := h.GetSegmentData()
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require.NoError(t, err)
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s, ok := sg.(*GenericRegion)
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require.True(t, ok)
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assert.Equal(t, 44, s.RegionSegment.BitmapHeight)
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assert.Equal(t, 54, s.RegionSegment.BitmapWidth)
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assert.Equal(t, bitmap.CmbOpOr, s.RegionSegment.CombinaionOperator)
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assert.Equal(t, true, s.IsTPGDon)
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assert.Equal(t, byte(0), s.GBTemplate)
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bm, err := s.GetRegionBitmap()
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require.NoError(t, err)
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t.Log(bm.String())
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})
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t.Run("S-5th", func(t *testing.T) {
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data := []byte{
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// Header
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0x00, 0x00, 0x00, 0x04, 0x27, 0x00, 0x01, 0x00, 0x00, 0x00, 0x2C,
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// Data part
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0x00, 0x00, 0x00, 0x36, 0x00, 0x00, 0x00, 0x2C, 0x00, 0x00, 0x00,
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0x04, 0x00, 0x00, 0x00, 0x0B, 0x00, 0x01, 0x26, 0xA0, 0x71, 0xCE,
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0xA7, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF8, 0xF0,
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}
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r := reader.New(data)
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d := &document{}
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h, err := NewHeader(d, r, 0, OSequential)
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require.NoError(t, err)
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assert.Equal(t, uint32(4), h.SegmentNumber)
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assert.Equal(t, uint64(44), h.SegmentDataLength)
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assert.Equal(t, 1, h.PageAssociation)
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gs, err := h.GetSegmentData()
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require.NoError(t, err)
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s, ok := gs.(*GenericRegion)
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require.True(t, ok)
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assert.Equal(t, 44, s.RegionSegment.BitmapHeight)
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assert.Equal(t, 54, s.RegionSegment.BitmapWidth)
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assert.Equal(t, bitmap.CmbOpOr, s.RegionSegment.CombinaionOperator)
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assert.Equal(t, true, s.IsMMREncoded)
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b, err := s.GetRegionBitmap()
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require.NoError(t, err)
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t.Log(b.String())
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})
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})
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}
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