/src/gdal/frmts/gtiff/gtiffbitmapband.cpp
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1 | | /****************************************************************************** |
2 | | * |
3 | | * Project: GeoTIFF Driver |
4 | | * Purpose: GDAL GeoTIFF support. |
5 | | * Author: Frank Warmerdam, warmerdam@pobox.com |
6 | | * |
7 | | ****************************************************************************** |
8 | | * Copyright (c) 1998, 2002, Frank Warmerdam <warmerdam@pobox.com> |
9 | | * Copyright (c) 2007-2015, Even Rouault <even dot rouault at spatialys dot com> |
10 | | * |
11 | | * SPDX-License-Identifier: MIT |
12 | | ****************************************************************************/ |
13 | | |
14 | | #include "gtiffbitmapband.h" |
15 | | #include "gtiffdataset.h" |
16 | | |
17 | | /************************************************************************/ |
18 | | /* GTiffBitmapBand() */ |
19 | | /************************************************************************/ |
20 | | |
21 | | GTiffBitmapBand::GTiffBitmapBand(GTiffDataset *poDSIn, int nBandIn) |
22 | 0 | : GTiffOddBitsBand(poDSIn, nBandIn) |
23 | | |
24 | 0 | { |
25 | 0 | eDataType = GDT_Byte; |
26 | |
|
27 | 0 | if (poDSIn->m_poColorTable != nullptr) |
28 | 0 | { |
29 | 0 | m_poColorTable = poDSIn->m_poColorTable->Clone(); |
30 | 0 | } |
31 | 0 | else |
32 | 0 | { |
33 | | #ifdef ESRI_BUILD |
34 | | m_poColorTable = nullptr; |
35 | | #else |
36 | 0 | const GDALColorEntry oWhite = {255, 255, 255, 255}; |
37 | 0 | const GDALColorEntry oBlack = {0, 0, 0, 255}; |
38 | |
|
39 | 0 | m_poColorTable = new GDALColorTable(); |
40 | |
|
41 | 0 | if (poDSIn->m_nPhotometric == PHOTOMETRIC_MINISWHITE) |
42 | 0 | { |
43 | 0 | m_poColorTable->SetColorEntry(0, &oWhite); |
44 | 0 | m_poColorTable->SetColorEntry(1, &oBlack); |
45 | 0 | } |
46 | 0 | else |
47 | 0 | { |
48 | 0 | m_poColorTable->SetColorEntry(0, &oBlack); |
49 | 0 | m_poColorTable->SetColorEntry(1, &oWhite); |
50 | 0 | } |
51 | 0 | #endif // not defined ESRI_BUILD. |
52 | 0 | } |
53 | 0 | } |
54 | | |
55 | | /************************************************************************/ |
56 | | /* ~GTiffBitmapBand() */ |
57 | | /************************************************************************/ |
58 | | |
59 | | GTiffBitmapBand::~GTiffBitmapBand() |
60 | | |
61 | 0 | { |
62 | 0 | delete m_poColorTable; |
63 | 0 | } |
64 | | |
65 | | /************************************************************************/ |
66 | | /* GetColorInterpretation() */ |
67 | | /************************************************************************/ |
68 | | |
69 | | GDALColorInterp GTiffBitmapBand::GetColorInterpretation() |
70 | | |
71 | 0 | { |
72 | 0 | if (m_poGDS->m_bPromoteTo8Bits) |
73 | 0 | return GCI_Undefined; |
74 | | |
75 | 0 | return GCI_PaletteIndex; |
76 | 0 | } |
77 | | |
78 | | /************************************************************************/ |
79 | | /* GetColorTable() */ |
80 | | /************************************************************************/ |
81 | | |
82 | | GDALColorTable *GTiffBitmapBand::GetColorTable() |
83 | | |
84 | 0 | { |
85 | 0 | if (m_poGDS->m_bPromoteTo8Bits) |
86 | 0 | return nullptr; |
87 | | |
88 | 0 | return m_poColorTable; |
89 | 0 | } |