1//========================================================================
2//
3// OutputDev.cc
4//
5// Copyright 1996-2003 Glyph & Cog, LLC
6//
7//========================================================================
8
9//========================================================================
10//
11// Modified under the Poppler project - http://poppler.freedesktop.org
12//
13// All changes made under the Poppler project to this file are licensed
14// under GPL version 2 or later
15//
16// Copyright (C) 2005 Jonathan Blandford <jrb@redhat.com>
17// Copyright (C) 2006 Thorkild Stray <thorkild@ifi.uio.no>
18// Copyright (C) 2007, 2017 Adrian Johnson <ajohnson@redneon.com>
19// Copyright (C) 2009 Carlos Garcia Campos <carlosgc@gnome.org>
20// Copyright (C) 2009, 2012, 2013, 2018, 2019 Albert Astals Cid <aacid@kde.org>
21// Copyright (C) 2012 Thomas Freitag <Thomas.Freitag@alfa.de>
22// Copyright (C) 2018 Adam Reichold <adam.reichold@t-online.de>
23//
24// To see a description of the changes please see the Changelog file that
25// came with your tarball or type make ChangeLog if you are building from git
26//
27//========================================================================
28
29#include <config.h>
30
31#include <cstddef>
32#include "Object.h"
33#include "Stream.h"
34#include "GfxState.h"
35#include "OutputDev.h"
36
37//------------------------------------------------------------------------
38// OutputDev
39//------------------------------------------------------------------------
40
41OutputDev::OutputDev()
42#ifdef USE_CMS
43 : iccColorSpaceCache(5)
44#endif
45{
46}
47
48OutputDev::~OutputDev() = default;
49
50void OutputDev::setDefaultCTM(const double *ctm)
51{
52 int i;
53 double det;
54
55 for (i = 0; i < 6; ++i) {
56 defCTM[i] = ctm[i];
57 }
58 det = 1 / (defCTM[0] * defCTM[3] - defCTM[1] * defCTM[2]);
59 defICTM[0] = defCTM[3] * det;
60 defICTM[1] = -defCTM[1] * det;
61 defICTM[2] = -defCTM[2] * det;
62 defICTM[3] = defCTM[0] * det;
63 defICTM[4] = (defCTM[2] * defCTM[5] - defCTM[3] * defCTM[4]) * det;
64 defICTM[5] = (defCTM[1] * defCTM[4] - defCTM[0] * defCTM[5]) * det;
65}
66
67void OutputDev::cvtDevToUser(double dx, double dy, double *ux, double *uy)
68{
69 *ux = defICTM[0] * dx + defICTM[2] * dy + defICTM[4];
70 *uy = defICTM[1] * dx + defICTM[3] * dy + defICTM[5];
71}
72
73void OutputDev::cvtUserToDev(double ux, double uy, int *dx, int *dy)
74{
75 *dx = (int)(defCTM[0] * ux + defCTM[2] * uy + defCTM[4] + 0.5);
76 *dy = (int)(defCTM[1] * ux + defCTM[3] * uy + defCTM[5] + 0.5);
77}
78
79void OutputDev::updateAll(GfxState *state)
80{
81 updateLineDash(state);
82 updateFlatness(state);
83 updateLineJoin(state);
84 updateLineCap(state);
85 updateMiterLimit(state);
86 updateLineWidth(state);
87 updateStrokeAdjust(state);
88 updateFillColorSpace(state);
89 updateFillColor(state);
90 updateStrokeColorSpace(state);
91 updateStrokeColor(state);
92 updateBlendMode(state);
93 updateFillOpacity(state);
94 updateStrokeOpacity(state);
95 updateFillOverprint(state);
96 updateStrokeOverprint(state);
97 updateTransfer(state);
98 updateFont(state);
99}
100
101bool OutputDev::beginType3Char(GfxState *state, double x, double y, double dx, double dy, CharCode code, const Unicode *u, int uLen)
102{
103 return false;
104}
105
106void OutputDev::drawImageMask(GfxState *state, Object *ref, Stream *str, int width, int height, bool invert, bool interpolate, bool inlineImg)
107{
108 int i, j;
109
110 if (inlineImg) {
111 str->reset();
112 j = height * ((width + 7) / 8);
113 for (i = 0; i < j; ++i) {
114 str->getChar();
115 }
116 str->close();
117 }
118}
119
120void OutputDev::setSoftMaskFromImageMask(GfxState *state, Object *ref, Stream *str, int width, int height, bool invert, bool inlineImg, double *baseMatrix)
121{
122 drawImageMask(state, ref, str, width, height, invert, interpolate: false, inlineImg);
123}
124
125void OutputDev::unsetSoftMaskFromImageMask(GfxState *state, double *baseMatrix)
126{
127 return;
128}
129
130void OutputDev::drawImage(GfxState *state, Object *ref, Stream *str, int width, int height, GfxImageColorMap *colorMap, bool interpolate, const int *maskColors, bool inlineImg)
131{
132 int i, j;
133
134 if (inlineImg) {
135 str->reset();
136 j = height * ((width * colorMap->getNumPixelComps() * colorMap->getBits() + 7) / 8);
137 for (i = 0; i < j; ++i) {
138 str->getChar();
139 }
140 str->close();
141 }
142}
143
144void OutputDev::drawMaskedImage(GfxState *state, Object *ref, Stream *str, int width, int height, GfxImageColorMap *colorMap, bool interpolate, Stream *maskStr, int maskWidth, int maskHeight, bool maskInvert, bool maskInterpolate)
145{
146 drawImage(state, ref, str, width, height, colorMap, interpolate, maskColors: nullptr, inlineImg: false);
147}
148
149void OutputDev::drawSoftMaskedImage(GfxState *state, Object *ref, Stream *str, int width, int height, GfxImageColorMap *colorMap, bool interpolate, Stream *maskStr, int maskWidth, int maskHeight, GfxImageColorMap *maskColorMap,
150 bool maskInterpolate)
151{
152 drawImage(state, ref, str, width, height, colorMap, interpolate, maskColors: nullptr, inlineImg: false);
153}
154
155void OutputDev::endMarkedContent(GfxState *state) { }
156
157void OutputDev::beginMarkedContent(const char *name, Dict *properties) { }
158
159void OutputDev::markPoint(const char *name) { }
160
161void OutputDev::markPoint(const char *name, Dict *properties) { }
162
163#ifdef OPI_SUPPORT
164void OutputDev::opiBegin(GfxState *state, Dict *opiDict) { }
165
166void OutputDev::opiEnd(GfxState *state, Dict *opiDict) { }
167#endif
168
169void OutputDev::startProfile()
170{
171 profileHash = std::make_unique<std::unordered_map<std::string, ProfileData>>();
172}
173
174std::unique_ptr<std::unordered_map<std::string, ProfileData>> OutputDev::endProfile()
175{
176 return std::move(profileHash);
177}
178

source code of poppler/poppler/OutputDev.cc