/src/gdal/frmts/gtiff/gtiffbitmapband.cpp
Line | Count | Source |
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 | | #include "gdal_priv.h" |
18 | | |
19 | | /************************************************************************/ |
20 | | /* GTiffBitmapBand() */ |
21 | | /************************************************************************/ |
22 | | |
23 | | GTiffBitmapBand::GTiffBitmapBand(GTiffDataset *poDSIn, int nBandIn) |
24 | 127k | : GTiffOddBitsBand(poDSIn, nBandIn) |
25 | | |
26 | 127k | { |
27 | 127k | eDataType = GDT_UInt8; |
28 | | |
29 | 127k | if (poDSIn->m_poColorTable != nullptr) |
30 | 3.24k | { |
31 | 3.24k | m_poColorTable = poDSIn->m_poColorTable->Clone(); |
32 | 3.24k | } |
33 | 124k | else |
34 | 124k | { |
35 | | #ifdef ESRI_BUILD |
36 | | m_poColorTable = nullptr; |
37 | | #else |
38 | 124k | const GDALColorEntry oWhite = {255, 255, 255, 255}; |
39 | 124k | const GDALColorEntry oBlack = {0, 0, 0, 255}; |
40 | | |
41 | 124k | m_poColorTable = new GDALColorTable(); |
42 | | |
43 | 124k | if (poDSIn->m_nPhotometric == PHOTOMETRIC_MINISWHITE) |
44 | 0 | { |
45 | 0 | m_poColorTable->SetColorEntry(0, &oWhite); |
46 | 0 | m_poColorTable->SetColorEntry(1, &oBlack); |
47 | 0 | } |
48 | 124k | else |
49 | 124k | { |
50 | 124k | m_poColorTable->SetColorEntry(0, &oBlack); |
51 | 124k | m_poColorTable->SetColorEntry(1, &oWhite); |
52 | 124k | } |
53 | 124k | #endif // not defined ESRI_BUILD. |
54 | 124k | } |
55 | 127k | } |
56 | | |
57 | | /************************************************************************/ |
58 | | /* ~GTiffBitmapBand() */ |
59 | | /************************************************************************/ |
60 | | |
61 | | GTiffBitmapBand::~GTiffBitmapBand() |
62 | | |
63 | 127k | { |
64 | 127k | delete m_poColorTable; |
65 | 127k | } |
66 | | |
67 | | /************************************************************************/ |
68 | | /* GetColorInterpretation() */ |
69 | | /************************************************************************/ |
70 | | |
71 | | GDALColorInterp GTiffBitmapBand::GetColorInterpretation() |
72 | | |
73 | 51.6k | { |
74 | 51.6k | if (m_poGDS->m_bPromoteTo8Bits) |
75 | 0 | return GCI_Undefined; |
76 | | |
77 | 51.6k | return GCI_PaletteIndex; |
78 | 51.6k | } |
79 | | |
80 | | /************************************************************************/ |
81 | | /* SetColorInterpretation() */ |
82 | | /************************************************************************/ |
83 | | |
84 | | CPLErr GTiffBitmapBand::SetColorInterpretation(GDALColorInterp eInterp) |
85 | 0 | { |
86 | 0 | if (eInterp != GetColorInterpretation()) |
87 | 0 | { |
88 | 0 | CPLDebug( |
89 | 0 | "GTiff", |
90 | 0 | "Setting color interpration on GTiffBitmap band is not supported"); |
91 | 0 | } |
92 | 0 | return CE_None; |
93 | 0 | } |
94 | | |
95 | | /************************************************************************/ |
96 | | /* GetColorTable() */ |
97 | | /************************************************************************/ |
98 | | |
99 | | GDALColorTable *GTiffBitmapBand::GetColorTable() |
100 | | |
101 | 44.3k | { |
102 | 44.3k | if (m_poGDS->m_bPromoteTo8Bits) |
103 | 0 | return nullptr; |
104 | | |
105 | 44.3k | return m_poColorTable; |
106 | 44.3k | } |