Google Git
Sign in
skia / third_party / poppler / 39a8b10181d77fff8846df2cff236a3105dd03a5 / . / poppler / PSOutputDev.cc
blob: 694d059eb6550cf48ec98b2cc46cc54e1d46a412 [file] [log] [blame]
//========================================================================
//
// PSOutputDev.cc
//
// Copyright 1996-2013 Glyph & Cog, LLC
//
//========================================================================
//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2005 Martin Kretzschmar <martink@gnome.org>
// Copyright (C) 2005, 2006 Kristian Høgsberg <krh@redhat.com>
// Copyright (C) 2006-2009, 2011-2013, 2015-2019 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2006 Jeff Muizelaar <jeff@infidigm.net>
// Copyright (C) 2007, 2008 Brad Hards <bradh@kde.org>
// Copyright (C) 2008, 2009 Koji Otani <sho@bbr.jp>
// Copyright (C) 2008, 2010 Hib Eris <hib@hiberis.nl>
// Copyright (C) 2009-2013 Thomas Freitag <Thomas.Freitag@alfa.de>
// Copyright (C) 2009 Till Kamppeter <till.kamppeter@gmail.com>
// Copyright (C) 2009 Carlos Garcia Campos <carlosgc@gnome.org>
// Copyright (C) 2009, 2011, 2012, 2014-2017 William Bader <williambader@hotmail.com>
// Copyright (C) 2009 Kovid Goyal <kovid@kovidgoyal.net>
// Copyright (C) 2009-2011, 2013-2015, 2017 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2012, 2014 Fabio D'Urso <fabiodurso@hotmail.it>
// Copyright (C) 2012 Lu Wang <coolwanglu@gmail.com>
// Copyright (C) 2014 Till Kamppeter <till.kamppeter@gmail.com>
// Copyright (C) 2015 Marek Kasik <mkasik@redhat.com>
// Copyright (C) 2016 Caolán McNamara <caolanm@redhat.com>
// Copyright (C) 2018 Klarälvdalens Datakonsult AB, a KDAB Group company, <info@kdab.com>. Work sponsored by the LiMux project of the city of Munich
// Copyright (C) 2018 Adam Reichold <adam.reichold@t-online.de>
// Copyright (C) 2018 Philipp Knechtges <philipp-dev@knechtges.com>
// Copyright (C) 2019 Christian Persch <chpe@src.gnome.org>
// Copyright (C) 2019 Oliver Sander <oliver.sander@tu-dresden.de>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================
#include <config.h>
#include <stdio.h>
#include <stddef.h>
#include <stdarg.h>
#include <signal.h>
#include <math.h>
#include <limits.h>
#include <algorithm>
#include <array>
#include "goo/GooString.h"
#include "poppler-config.h"
#include "GlobalParams.h"
#include "Object.h"
#include "Error.h"
#include "Function.h"
#include "Gfx.h"
#include "GfxState.h"
#include "GfxFont.h"
#include "UnicodeMap.h"
#include <fofi/FoFiType1C.h>
#include <fofi/FoFiTrueType.h>
#include "Catalog.h"
#include "Page.h"
#include "Stream.h"
#ifdef ENABLE_ZLIB
# include "FlateEncoder.h"
#endif
#ifdef ENABLE_ZLIB_UNCOMPRESS
# include "FlateStream.h"
#endif
#include "Annot.h"
#include "XRef.h"
#include "PreScanOutputDev.h"
#include "FileSpec.h"
#include "CharCodeToUnicode.h"
#ifdef HAVE_SPLASH
# include "splash/Splash.h"
# include "splash/SplashBitmap.h"
# include "SplashOutputDev.h"
#endif
#include "PSOutputDev.h"
#include "PDFDoc.h"
// the MSVC math.h doesn't define this
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
//------------------------------------------------------------------------
// Max size of a slice when rasterizing pages, in pixels.
#define rasterizationSliceSize 20000000
//------------------------------------------------------------------------
// PostScript prolog and setup
//------------------------------------------------------------------------
// The '~' escapes mark prolog code that is emitted only in certain
// levels:
//
// ~[123][sn]
// ^ ^----- s=psLevel*Sep, n=psLevel*
// +----- 1=psLevel1*, 2=psLevel2*, 3=psLevel3*
static const char *prolog[] = {
"/xpdf 75 dict def xpdf begin",
"% PDF special state",
"/pdfDictSize 15 def",
"~1sn",
"/pdfStates 64 array def",
" 0 1 63 {",
" pdfStates exch pdfDictSize dict",
" dup /pdfStateIdx 3 index put",
" put",
" } for",
"~123sn",
"/pdfSetup {",
" /setpagedevice where {",
" pop 2 dict begin",
" /Policies 1 dict dup begin /PageSize 6 def end def",
" { /Duplex true def } if",
" currentdict end setpagedevice",
" } {",
" pop",
" } ifelse",
"} def",
"/pdfSetupPaper {",
" % Change paper size, but only if different from previous paper size otherwise",
" % duplex fails. PLRM specifies a tolerance of 5 pts when matching paper size",
" % so we use the same when checking if the size changes.",
" /setpagedevice where {",
" pop currentpagedevice",
" /PageSize known {",
" 2 copy",
" currentpagedevice /PageSize get aload pop",
" exch 4 1 roll",
" sub abs 5 gt",
" 3 1 roll",
" sub abs 5 gt",
" or",
" } {",
" true",
" } ifelse",
" {",
" 2 array astore",
" 2 dict begin",
" /PageSize exch def",
" /ImagingBBox null def",
" currentdict end",
" setpagedevice",
" } {",
" pop pop",
" } ifelse",
" } {",
" pop",
" } ifelse",
"} def",
"~1sn",
"/pdfOpNames [",
" /pdfFill /pdfStroke /pdfLastFill /pdfLastStroke",
" /pdfTextMat /pdfFontSize /pdfCharSpacing /pdfTextRender /pdfPatternCS",
" /pdfTextRise /pdfWordSpacing /pdfHorizScaling /pdfTextClipPath",
"] def",
"~123sn",
"/pdfStartPage {",
"~1sn",
" pdfStates 0 get begin",
"~23sn",
" pdfDictSize dict begin",
"~23n",
" /pdfFillCS [] def",
" /pdfFillXform {} def",
" /pdfStrokeCS [] def",
" /pdfStrokeXform {} def",
"~1n",
" /pdfFill 0 def",
" /pdfStroke 0 def",
"~1s",
" /pdfFill [0 0 0 1] def",
" /pdfStroke [0 0 0 1] def",
"~23sn",
" /pdfFill [0] def",
" /pdfStroke [0] def",
" /pdfFillOP false def",
" /pdfStrokeOP false def",
"~3sn",
" /pdfOPM false def",
"~123sn",
" /pdfLastFill false def",
" /pdfLastStroke false def",
" /pdfTextMat [1 0 0 1 0 0] def",
" /pdfFontSize 0 def",
" /pdfCharSpacing 0 def",
" /pdfTextRender 0 def",
" /pdfPatternCS false def",
" /pdfTextRise 0 def",
" /pdfWordSpacing 0 def",
" /pdfHorizScaling 1 def",
" /pdfTextClipPath [] def",
"} def",
"/pdfEndPage { end } def",
"~23s",
"% separation convention operators",
"/findcmykcustomcolor where {",
" pop",
"}{",
" /findcmykcustomcolor { 5 array astore } def",
"} ifelse",
"/setcustomcolor where {",
" pop",
"}{",
" /setcustomcolor {",
" exch",
" [ exch /Separation exch dup 4 get exch /DeviceCMYK exch",
" 0 4 getinterval cvx",
" [ exch /dup load exch { mul exch dup } /forall load",
" /pop load dup ] cvx",
" ] setcolorspace setcolor",
" } def",
"} ifelse",
"/customcolorimage where {",
" pop",
"}{",
" /customcolorimage {",
" gsave",
" [ exch /Separation exch dup 4 get exch /DeviceCMYK exch",
" 0 4 getinterval",
" [ exch /dup load exch { mul exch dup } /forall load",
" /pop load dup ] cvx",
" ] setcolorspace",
" 10 dict begin",
" /ImageType 1 def",
" /DataSource exch def",
" /ImageMatrix exch def",
" /BitsPerComponent exch def",
" /Height exch def",
" /Width exch def",
" /Decode [1 0] def",
" currentdict end",
" image",
" grestore",
" } def",
"} ifelse",
"~123sn",
"% PDF color state",
"~1n",
"/g { dup /pdfFill exch def setgray",
" /pdfLastFill true def /pdfLastStroke false def } def",
"/G { dup /pdfStroke exch def setgray",
" /pdfLastStroke true def /pdfLastFill false def } def",
"/fCol {",
" pdfLastFill not {",
" pdfFill setgray",
" /pdfLastFill true def /pdfLastStroke false def",
" } if",
"} def",
"/sCol {",
" pdfLastStroke not {",
" pdfStroke setgray",
" /pdfLastStroke true def /pdfLastFill false def",
" } if",
"} def",
"~1s",
"/k { 4 copy 4 array astore /pdfFill exch def setcmykcolor",
" /pdfLastFill true def /pdfLastStroke false def } def",
"/K { 4 copy 4 array astore /pdfStroke exch def setcmykcolor",
" /pdfLastStroke true def /pdfLastFill false def } def",
"/fCol {",
" pdfLastFill not {",
" pdfFill aload pop setcmykcolor",
" /pdfLastFill true def /pdfLastStroke false def",
" } if",
"} def",
"/sCol {",
" pdfLastStroke not {",
" pdfStroke aload pop setcmykcolor",
" /pdfLastStroke true def /pdfLastFill false def",
" } if",
"} def",
"~3n",
"/opm { dup /pdfOPM exch def",
" /setoverprintmode where{pop setoverprintmode}{pop}ifelse } def",
"~23n",
"/cs { /pdfFillXform exch def dup /pdfFillCS exch def",
" setcolorspace } def",
"/CS { /pdfStrokeXform exch def dup /pdfStrokeCS exch def",
" setcolorspace } def",
"/sc { pdfLastFill not { pdfFillCS setcolorspace } if",
" dup /pdfFill exch def aload pop pdfFillXform setcolor",
" /pdfLastFill true def /pdfLastStroke false def } def",
"/SC { pdfLastStroke not { pdfStrokeCS setcolorspace } if",
" dup /pdfStroke exch def aload pop pdfStrokeXform setcolor",
" /pdfLastStroke true def /pdfLastFill false def } def",
"/op { /pdfFillOP exch def",
" pdfLastFill { pdfFillOP setoverprint } if } def",
"/OP { /pdfStrokeOP exch def",
" pdfLastStroke { pdfStrokeOP setoverprint } if } def",
"/fCol {",
" pdfLastFill not {",
" pdfFillCS setcolorspace",
" pdfFill aload pop pdfFillXform setcolor",
" pdfFillOP setoverprint",
" /pdfLastFill true def /pdfLastStroke false def",
" } if",
"} def",
"/sCol {",
" pdfLastStroke not {",
" pdfStrokeCS setcolorspace",
" pdfStroke aload pop pdfStrokeXform setcolor",
" pdfStrokeOP setoverprint",
" /pdfLastStroke true def /pdfLastFill false def",
" } if",
"} def",
"~3s",
"/opm { dup /pdfOPM exch def",
" /setoverprintmode where{pop setoverprintmode}{pop}ifelse } def",
"~23s",
"/k { 4 copy 4 array astore /pdfFill exch def setcmykcolor",
" /pdfLastFill true def /pdfLastStroke false def } def",
"/K { 4 copy 4 array astore /pdfStroke exch def setcmykcolor",
" /pdfLastStroke true def /pdfLastFill false def } def",
"/ck { 6 copy 6 array astore /pdfFill exch def",
" findcmykcustomcolor exch setcustomcolor",
" /pdfLastFill true def /pdfLastStroke false def } def",
"/CK { 6 copy 6 array astore /pdfStroke exch def",
" findcmykcustomcolor exch setcustomcolor",
" /pdfLastStroke true def /pdfLastFill false def } def",
"/op { /pdfFillOP exch def",
" pdfLastFill { pdfFillOP setoverprint } if } def",
"/OP { /pdfStrokeOP exch def",
" pdfLastStroke { pdfStrokeOP setoverprint } if } def",
"/fCol {",
" pdfLastFill not {",
" pdfFill aload length 4 eq {",
" setcmykcolor",
" }{",
" findcmykcustomcolor exch setcustomcolor",
" } ifelse",
" pdfFillOP setoverprint",
" /pdfLastFill true def /pdfLastStroke false def",
" } if",
"} def",
"/sCol {",
" pdfLastStroke not {",
" pdfStroke aload length 4 eq {",
" setcmykcolor",
" }{",
" findcmykcustomcolor exch setcustomcolor",
" } ifelse",
" pdfStrokeOP setoverprint",
" /pdfLastStroke true def /pdfLastFill false def",
" } if",
"} def",
"~123sn",
"% build a font",
"/pdfMakeFont {",
" 4 3 roll findfont",
" 4 2 roll matrix scale makefont",
" dup length dict begin",
" { 1 index /FID ne { def } { pop pop } ifelse } forall",
" /Encoding exch def",
" currentdict",
" end",
" definefont pop",
"} def",
"/pdfMakeFont16 {",
" exch findfont",
" dup length dict begin",
" { 1 index /FID ne { def } { pop pop } ifelse } forall",
" /WMode exch def",
" currentdict",
" end",
" definefont pop",
"} def",
"~3sn",
"/pdfMakeFont16L3 {",
" 1 index /CIDFont resourcestatus {",
" pop pop 1 index /CIDFont findresource /CIDFontType known",
" } {",
" false",
" } ifelse",
" {",
" 0 eq { /Identity-H } { /Identity-V } ifelse",
" exch 1 array astore composefont pop",
" } {",
" pdfMakeFont16",
" } ifelse",
"} def",
"~123sn",
"% graphics state operators",
"~1sn",
"/q {",
" gsave",
" pdfOpNames length 1 sub -1 0 { pdfOpNames exch get load } for",
" pdfStates pdfStateIdx 1 add get begin",
" pdfOpNames { exch def } forall",
"} def",
"/Q { end grestore } def",
"~23sn",
"/q { gsave pdfDictSize dict begin } def",
"/Q {",
" end grestore",
" /pdfLastFill where {",
" pop",
" pdfLastFill {",
" pdfFillOP setoverprint",
" } {",
" pdfStrokeOP setoverprint",
" } ifelse",
" } if",
"~3sn",
" /pdfOPM where {",
" pop",
" pdfOPM /setoverprintmode where{pop setoverprintmode}{pop}ifelse ",
" } if",
"~23sn",
"} def",
"~123sn",
"/cm { concat } def",
"/d { setdash } def",
"/i { setflat } def",
"/j { setlinejoin } def",
"/J { setlinecap } def",
"/M { setmiterlimit } def",
"/w { setlinewidth } def",
"% path segment operators",
"/m { moveto } def",
"/l { lineto } def",
"/c { curveto } def",
"/re { 4 2 roll moveto 1 index 0 rlineto 0 exch rlineto",
" neg 0 rlineto closepath } def",
"/h { closepath } def",
"% path painting operators",
"/S { sCol stroke } def",
"/Sf { fCol stroke } def",
"/f { fCol fill } def",
"/f* { fCol eofill } def",
"% clipping operators",
"/W { clip newpath } def",
"/W* { eoclip newpath } def",
"/Ws { strokepath clip newpath } def",
"% text state operators",
"/Tc { /pdfCharSpacing exch def } def",
"/Tf { dup /pdfFontSize exch def",
" dup pdfHorizScaling mul exch matrix scale",
" pdfTextMat matrix concatmatrix dup 4 0 put dup 5 0 put",
" exch findfont exch makefont setfont } def",
"/Tr { /pdfTextRender exch def } def",
"/Tp { /pdfPatternCS exch def } def",
"/Ts { /pdfTextRise exch def } def",
"/Tw { /pdfWordSpacing exch def } def",
"/Tz { /pdfHorizScaling exch def } def",
"% text positioning operators",
"/Td { pdfTextMat transform moveto } def",
"/Tm { /pdfTextMat exch def } def",
"% text string operators",
"/xyshow where {",
" pop",
" /xyshow2 {",
" dup length array",
" 0 2 2 index length 1 sub {",
" 2 index 1 index 2 copy get 3 1 roll 1 add get",
" pdfTextMat dtransform",
" 4 2 roll 2 copy 6 5 roll put 1 add 3 1 roll dup 4 2 roll put",
" } for",
" exch pop",
" xyshow",
" } def",
"}{",
" /xyshow2 {",
" currentfont /FontType get 0 eq {",
" 0 2 3 index length 1 sub {",
" currentpoint 4 index 3 index 2 getinterval show moveto",
" 2 copy get 2 index 3 2 roll 1 add get",
" pdfTextMat dtransform rmoveto",
" } for",
" } {",
" 0 1 3 index length 1 sub {",
" currentpoint 4 index 3 index 1 getinterval show moveto",
" 2 copy 2 mul get 2 index 3 2 roll 2 mul 1 add get",
" pdfTextMat dtransform rmoveto",
" } for",
" } ifelse",
" pop pop",
" } def",
"} ifelse",
"/cshow where {",
" pop",
" /xycp {", // xycharpath
" 0 3 2 roll",
" {",
" pop pop currentpoint 3 2 roll",
" 1 string dup 0 4 3 roll put false charpath moveto",
" 2 copy get 2 index 2 index 1 add get",
" pdfTextMat dtransform rmoveto",
" 2 add",
" } exch cshow",
" pop pop",
" } def",
"}{",
" /xycp {", // xycharpath
" currentfont /FontType get 0 eq {",
" 0 2 3 index length 1 sub {",
" currentpoint 4 index 3 index 2 getinterval false charpath moveto",
" 2 copy get 2 index 3 2 roll 1 add get",
" pdfTextMat dtransform rmoveto",
" } for",
" } {",
" 0 1 3 index length 1 sub {",
" currentpoint 4 index 3 index 1 getinterval false charpath moveto",
" 2 copy 2 mul get 2 index 3 2 roll 2 mul 1 add get",
" pdfTextMat dtransform rmoveto",
" } for",
" } ifelse",
" pop pop",
" } def",
"} ifelse",
"/Tj {",
" fCol", // because stringwidth has to draw Type 3 chars
" 0 pdfTextRise pdfTextMat dtransform rmoveto",
" currentpoint 4 2 roll",
" pdfTextRender 1 and 0 eq {",
" 2 copy xyshow2",
" } if",
" pdfTextRender 3 and dup 1 eq exch 2 eq or {",
" 3 index 3 index moveto",
" 2 copy",
" currentfont /FontType get 3 eq { fCol } { sCol } ifelse",
" xycp currentpoint stroke moveto",
" } if",
" pdfTextRender 4 and 0 ne {",
" 4 2 roll moveto xycp",
" /pdfTextClipPath [ pdfTextClipPath aload pop",
" {/moveto cvx}",
" {/lineto cvx}",
" {/curveto cvx}",
" {/closepath cvx}",
" pathforall ] def",
" currentpoint newpath moveto",
" } {",
" pop pop pop pop",
" } ifelse",
" 0 pdfTextRise neg pdfTextMat dtransform rmoveto",
"} def",
"/TJm { 0.001 mul pdfFontSize mul pdfHorizScaling mul neg 0",
" pdfTextMat dtransform rmoveto } def",
"/TJmV { 0.001 mul pdfFontSize mul neg 0 exch",
" pdfTextMat dtransform rmoveto } def",
"/Tclip { pdfTextClipPath cvx exec clip newpath",
" /pdfTextClipPath [] def } def",
"/Tclip* { pdfTextClipPath cvx exec eoclip newpath",
" /pdfTextClipPath [] def } def",
"~1ns",
"% Level 1 image operators",
"/pdfIm1 {",
" /pdfImBuf1 4 index string def",
" { currentfile pdfImBuf1 readhexstring pop } image",
"} def",
"/pdfIm1Bin {",
" /pdfImBuf1 4 index string def",
" { currentfile pdfImBuf1 readstring pop } image",
"} def",
"~1s",
"/pdfIm1Sep {",
" /pdfImBuf1 4 index string def",
" /pdfImBuf2 4 index string def",
" /pdfImBuf3 4 index string def",
" /pdfImBuf4 4 index string def",
" { currentfile pdfImBuf1 readhexstring pop }",
" { currentfile pdfImBuf2 readhexstring pop }",
" { currentfile pdfImBuf3 readhexstring pop }",
" { currentfile pdfImBuf4 readhexstring pop }",
" true 4 colorimage",
"} def",
"/pdfIm1SepBin {",
" /pdfImBuf1 4 index string def",
" /pdfImBuf2 4 index string def",
" /pdfImBuf3 4 index string def",
" /pdfImBuf4 4 index string def",
" { currentfile pdfImBuf1 readstring pop }",
" { currentfile pdfImBuf2 readstring pop }",
" { currentfile pdfImBuf3 readstring pop }",
" { currentfile pdfImBuf4 readstring pop }",
" true 4 colorimage",
"} def",
"~1ns",
"/pdfImM1 {",
" fCol /pdfImBuf1 4 index 7 add 8 idiv string def",
" { currentfile pdfImBuf1 readhexstring pop } imagemask",
"} def",
"/pdfImM1Bin {",
" fCol /pdfImBuf1 4 index 7 add 8 idiv string def",
" { currentfile pdfImBuf1 readstring pop } imagemask",
"} def",
"/pdfImStr {",
" 2 copy exch length lt {",
" 2 copy get exch 1 add exch",
" } {",
" ()",
" } ifelse",
"} def",
"/pdfImM1a {",
" { pdfImStr } imagemask",
" pop pop",
"} def",
"~23sn",
"% Level 2/3 image operators",
"/pdfImBuf 100 string def",
"/pdfImStr {",
" 2 copy exch length lt {",
" 2 copy get exch 1 add exch",
" } {",
" ()",
" } ifelse",
"} def",
"/skipEOD {",
" { currentfile pdfImBuf readline",
" not { pop exit } if",
" (%-EOD-) eq { exit } if } loop",
"} def",
"/pdfIm { image skipEOD } def",
"~3sn",
"/pdfMask {",
" /ReusableStreamDecode filter",
" skipEOD",
" /maskStream exch def",
"} def",
"/pdfMaskEnd { maskStream closefile } def",
"/pdfMaskInit {",
" /maskArray exch def",
" /maskIdx 0 def",
"} def",
"/pdfMaskSrc {",
" maskIdx maskArray length lt {",
" maskArray maskIdx get",
" /maskIdx maskIdx 1 add def",
" } {",
" ()",
" } ifelse",
"} def",
"~23s",
"/pdfImSep {",
" findcmykcustomcolor exch",
" dup /Width get /pdfImBuf1 exch string def",
" dup /Decode get aload pop 1 index sub /pdfImDecodeRange exch def",
" /pdfImDecodeLow exch def",
" begin Width Height BitsPerComponent ImageMatrix DataSource end",
" /pdfImData exch def",
" { pdfImData pdfImBuf1 readstring pop",
" 0 1 2 index length 1 sub {",
" 1 index exch 2 copy get",
" pdfImDecodeRange mul 255 div pdfImDecodeLow add round cvi",
" 255 exch sub put",
" } for }",
" 6 5 roll customcolorimage",
" skipEOD",
"} def",
"~23sn",
"/pdfImM { fCol imagemask skipEOD } def",
"~123sn",
"/pr { 2 index 2 index 3 2 roll putinterval 4 add } def",
"/pdfImClip {",
" gsave",
" 0 2 4 index length 1 sub {",
" dup 4 index exch 2 copy",
" get 5 index div put",
" 1 add 3 index exch 2 copy",
" get 3 index div put",
" } for",
" pop pop rectclip",
"} def",
"/pdfImClipEnd { grestore } def",
"~23sn",
"% shading operators",
"/colordelta {",
" false 0 1 3 index length 1 sub {",
" dup 4 index exch get 3 index 3 2 roll get sub abs 0.004 gt {",
" pop true",
" } if",
" } for",
" exch pop exch pop",
"} def",
"/funcCol { func n array astore } def",
"/funcSH {",
" dup 0 eq {",
" true",
" } {",
" dup 6 eq {",
" false",
" } {",
" 4 index 4 index funcCol dup",
" 6 index 4 index funcCol dup",
" 3 1 roll colordelta 3 1 roll",
" 5 index 5 index funcCol dup",
" 3 1 roll colordelta 3 1 roll",
" 6 index 8 index funcCol dup",
" 3 1 roll colordelta 3 1 roll",
" colordelta or or or",
" } ifelse",
" } ifelse",
" {",
" 1 add",
" 4 index 3 index add 0.5 mul exch 4 index 3 index add 0.5 mul exch",
" 6 index 6 index 4 index 4 index 4 index funcSH",
" 2 index 6 index 6 index 4 index 4 index funcSH",
" 6 index 2 index 4 index 6 index 4 index funcSH",
" 5 3 roll 3 2 roll funcSH pop pop",
" } {",
" pop 3 index 2 index add 0.5 mul 3 index 2 index add 0.5 mul",
"~23n",
" funcCol sc",
"~23s",
" funcCol aload pop k",
"~23sn",
" dup 4 index exch mat transform m",
" 3 index 3 index mat transform l",
" 1 index 3 index mat transform l",
" mat transform l pop pop h f*",
" } ifelse",
"} def",
"/axialCol {",
" dup 0 lt {",
" pop t0",
" } {",
" dup 1 gt {",
" pop t1",
" } {",
" dt mul t0 add",
" } ifelse",
" } ifelse",
" func n array astore",
"} def",
"/axialSH {",
" dup 0 eq {",
" true",
" } {",
" dup 8 eq {",
" false",
" } {",
" 2 index axialCol 2 index axialCol colordelta",
" } ifelse",
" } ifelse",
" {",
" 1 add 3 1 roll 2 copy add 0.5 mul",
" dup 4 3 roll exch 4 index axialSH",
" exch 3 2 roll axialSH",
" } {",
" pop 2 copy add 0.5 mul",
"~23n",
" axialCol sc",
"~23s",
" axialCol aload pop k",
"~23sn",
" exch dup dx mul x0 add exch dy mul y0 add",
" 3 2 roll dup dx mul x0 add exch dy mul y0 add",
" dx abs dy abs ge {",
" 2 copy yMin sub dy mul dx div add yMin m",
" yMax sub dy mul dx div add yMax l",
" 2 copy yMax sub dy mul dx div add yMax l",
" yMin sub dy mul dx div add yMin l",
" h f*",
" } {",
" exch 2 copy xMin sub dx mul dy div add xMin exch m",
" xMax sub dx mul dy div add xMax exch l",
" exch 2 copy xMax sub dx mul dy div add xMax exch l",
" xMin sub dx mul dy div add xMin exch l",
" h f*",
" } ifelse",
" } ifelse",
"} def",
"/radialCol {",
" dup t0 lt {",
" pop t0",
" } {",
" dup t1 gt {",
" pop t1",
" } if",
" } ifelse",
" func n array astore",
"} def",
"/radialSH {",
" dup 0 eq {",
" true",
" } {",
" dup 8 eq {",
" false",
" } {",
" 2 index dt mul t0 add radialCol",
" 2 index dt mul t0 add radialCol colordelta",
" } ifelse",
" } ifelse",
" {",
" 1 add 3 1 roll 2 copy add 0.5 mul",
" dup 4 3 roll exch 4 index radialSH",
" exch 3 2 roll radialSH",
" } {",
" pop 2 copy add 0.5 mul dt mul t0 add",
"~23n",
" radialCol sc",
"~23s",
" radialCol aload pop k",
"~23sn",
" encl {",
" exch dup dx mul x0 add exch dup dy mul y0 add exch dr mul r0 add",
" 0 360 arc h",
" dup dx mul x0 add exch dup dy mul y0 add exch dr mul r0 add",
" 360 0 arcn h f",
" } {",
" 2 copy",
" dup dx mul x0 add exch dup dy mul y0 add exch dr mul r0 add",
" a1 a2 arcn",
" dup dx mul x0 add exch dup dy mul y0 add exch dr mul r0 add",
" a2 a1 arcn h",
" dup dx mul x0 add exch dup dy mul y0 add exch dr mul r0 add",
" a1 a2 arc",
" dup dx mul x0 add exch dup dy mul y0 add exch dr mul r0 add",
" a2 a1 arc h f",
" } ifelse",
" } ifelse",
"} def",
"~123sn",
"end",
nullptr
};
static const char *cmapProlog[] = {
"/CIDInit /ProcSet findresource begin",
"10 dict begin",
" begincmap",
" /CMapType 1 def",
" /CMapName /Identity-H def",
" /CIDSystemInfo 3 dict dup begin",
" /Registry (Adobe) def",
" /Ordering (Identity) def",
" /Supplement 0 def",
" end def",
" 1 begincodespacerange",
" <0000> <ffff>",
" endcodespacerange",
" 0 usefont",
" 1 begincidrange",
" <0000> <ffff> 0",
" endcidrange",
" endcmap",
" currentdict CMapName exch /CMap defineresource pop",
"end",
"10 dict begin",
" begincmap",
" /CMapType 1 def",
" /CMapName /Identity-V def",
" /CIDSystemInfo 3 dict dup begin",
" /Registry (Adobe) def",
" /Ordering (Identity) def",
" /Supplement 0 def",
" end def",
" /WMode 1 def",
" 1 begincodespacerange",
" <0000> <ffff>",
" endcodespacerange",
" 0 usefont",
" 1 begincidrange",
" <0000> <ffff> 0",
" endcidrange",
" endcmap",
" currentdict CMapName exch /CMap defineresource pop",
"end",
"end",
nullptr
};
//------------------------------------------------------------------------
// Fonts
//------------------------------------------------------------------------
struct PSSubstFont {
const char *psName; // PostScript name
double mWidth; // width of 'm' character
};
// NB: must be in same order as base14SubstFonts in GfxFont.cc
static PSSubstFont psBase14SubstFonts[14] = {
{"Courier", 0.600},
{"Courier-Oblique", 0.600},
{"Courier-Bold", 0.600},
{"Courier-BoldOblique", 0.600},
{"Helvetica", 0.833},
{"Helvetica-Oblique", 0.833},
{"Helvetica-Bold", 0.889},
{"Helvetica-BoldOblique", 0.889},
{"Times-Roman", 0.788},
{"Times-Italic", 0.722},
{"Times-Bold", 0.833},
{"Times-BoldItalic", 0.778},
// the last two are never used for substitution
{"Symbol", 0},
{"ZapfDingbats", 0}
};
// Mapping from Type 1/1C font file to PS font name.
struct PST1FontName {
Ref fontFileID;
GooString *psName; // PostScript font name used for this
// embedded font file
};
// Info for 8-bit fonts
struct PSFont8Info {
Ref fontID;
int *codeToGID; // code-to-GID mapping for TrueType fonts
};
// Encoding info for substitute 16-bit font
struct PSFont16Enc {
Ref fontID;
GooString *enc;
};
//------------------------------------------------------------------------
// process colors
//------------------------------------------------------------------------
#define psProcessCyan 1
#define psProcessMagenta 2
#define psProcessYellow 4
#define psProcessBlack 8
#define psProcessCMYK 15
//------------------------------------------------------------------------
// PSOutCustomColor
//------------------------------------------------------------------------
class PSOutCustomColor {
public:
PSOutCustomColor(double cA, double mA,
double yA, double kA, GooString *nameA);
~PSOutCustomColor();
PSOutCustomColor(const PSOutCustomColor &) = delete;
PSOutCustomColor& operator=(const PSOutCustomColor &) = delete;
double c, m, y, k;
GooString *name;
PSOutCustomColor *next;
};
PSOutCustomColor::PSOutCustomColor(double cA, double mA,
double yA, double kA, GooString *nameA) {
c = cA;
m = mA;
y = yA;
k = kA;
name = nameA;
next = nullptr;
}
PSOutCustomColor::~PSOutCustomColor() {
delete name;
}
//------------------------------------------------------------------------
struct PSOutImgClipRect {
int x0, x1, y0, y1;
};
//------------------------------------------------------------------------
struct PSOutPaperSize {
PSOutPaperSize(GooString *nameA, int wA, int hA) { name = nameA; w = wA; h = hA; }
~PSOutPaperSize() { delete name; }
PSOutPaperSize(const PSOutPaperSize &) = delete;
PSOutPaperSize& operator=(const PSOutPaperSize &) = delete;
GooString *name;
int w, h;
};
//------------------------------------------------------------------------
// DeviceNRecoder
//------------------------------------------------------------------------
class DeviceNRecoder: public FilterStream {
public:
DeviceNRecoder(Stream *strA, int widthA, int heightA,
GfxImageColorMap *colorMapA);
~DeviceNRecoder();
StreamKind getKind() override { return strWeird; }
void reset() override;
int getChar() override
{ return (bufIdx >= bufSize && !fillBuf()) ? EOF : buf[bufIdx++]; }
int lookChar() override
{ return (bufIdx >= bufSize && !fillBuf()) ? EOF : buf[bufIdx]; }
GooString *getPSFilter(int psLevel, const char *indent) override { return nullptr; }
bool isBinary(bool last = true) override { return true; }
bool isEncoder() override { return true; }
private:
bool fillBuf();
int width, height;
GfxImageColorMap *colorMap;
Function *func;
ImageStream *imgStr;
int buf[gfxColorMaxComps];
int pixelIdx;
int bufIdx;
int bufSize;
};
DeviceNRecoder::DeviceNRecoder(Stream *strA, int widthA, int heightA,
GfxImageColorMap *colorMapA):
FilterStream(strA) {
width = widthA;
height = heightA;
colorMap = colorMapA;
imgStr = nullptr;
pixelIdx = 0;
bufIdx = gfxColorMaxComps;
bufSize = ((GfxDeviceNColorSpace *)colorMap->getColorSpace())->
getAlt()->getNComps();
func = ((GfxDeviceNColorSpace *)colorMap->getColorSpace())->
getTintTransformFunc();
}
DeviceNRecoder::~DeviceNRecoder() {
if (imgStr) {
delete imgStr;
}
if (str->isEncoder()) {
delete str;
}
}
void DeviceNRecoder::reset() {
imgStr = new ImageStream(str, width, colorMap->getNumPixelComps(),
colorMap->getBits());
imgStr->reset();
}
bool DeviceNRecoder::fillBuf() {
unsigned char pixBuf[gfxColorMaxComps];
GfxColor color;
double x[gfxColorMaxComps], y[gfxColorMaxComps];
int i;
if (pixelIdx >= width * height) {
return false;
}
imgStr->getPixel(pixBuf);
colorMap->getColor(pixBuf, &color);
for (i = 0;
i < ((GfxDeviceNColorSpace *)colorMap->getColorSpace())->getNComps();
++i) {
x[i] = colToDbl(color.c[i]);
}
func->transform(x, y);
for (i = 0; i < bufSize; ++i) {
buf[i] = (int)(y[i] * 255 + 0.5);
}
bufIdx = 0;
++pixelIdx;
return true;
}
//------------------------------------------------------------------------
// PSOutputDev
//------------------------------------------------------------------------
extern "C" {
typedef void (*SignalFunc)(int);
}
static void outputToFile(void *stream, const char *data, int len) {
fwrite(data, 1, len, (FILE *)stream);
}
PSOutputDev::PSOutputDev(const char *fileName, PDFDoc *docA,
char *psTitleA,
const std::vector<int> &pagesA, PSOutMode modeA,
int paperWidthA, int paperHeightA,
bool noCropA, bool duplexA,
int imgLLXA, int imgLLYA, int imgURXA, int imgURYA,
bool forceRasterizeA,
bool manualCtrlA,
PSOutCustomCodeCbk customCodeCbkA,
void *customCodeCbkDataA) {
FILE *f;
PSFileType fileTypeA;
underlayCbk = nullptr;
underlayCbkData = nullptr;
overlayCbk = nullptr;
overlayCbkData = nullptr;
customCodeCbk = customCodeCbkA;
customCodeCbkData = customCodeCbkDataA;
fontIDs = nullptr;
t1FontNames = nullptr;
font8Info = nullptr;
font16Enc = nullptr;
imgIDs = nullptr;
formIDs = nullptr;
paperSizes = nullptr;
embFontList = nullptr;
customColors = nullptr;
haveTextClip = false;
t3String = nullptr;
forceRasterize = forceRasterizeA;
psTitle = nullptr;
// open file or pipe
if (!strcmp(fileName, "-")) {
fileTypeA = psStdout;
f = stdout;
} else if (fileName[0] == '|') {
fileTypeA = psPipe;
#ifdef HAVE_POPEN
#ifndef _WIN32
signal(SIGPIPE, (SignalFunc)SIG_IGN);
#endif
if (!(f = popen(fileName + 1, "w"))) {
error(errIO, -1, "Couldn't run print command '{0:s}'", fileName);
ok = false;
return;
}
#else
error(errIO, -1, "Print commands are not supported ('{0:s}')", fileName);
ok = false;
return;
#endif
} else {
fileTypeA = psFile;
if (!(f = openFile(fileName, "w"))) {
error(errIO, -1, "Couldn't open PostScript file '{0:s}'", fileName);
ok = false;
return;
}
}
init(outputToFile, f, fileTypeA, psTitleA,
docA, pagesA, modeA,
imgLLXA, imgLLYA, imgURXA, imgURYA, manualCtrlA,
paperWidthA, paperHeightA, noCropA, duplexA);
}
PSOutputDev::PSOutputDev(PSOutputFunc outputFuncA, void *outputStreamA,
char *psTitleA,
PDFDoc *docA,
const std::vector<int> &pagesA, PSOutMode modeA,
int paperWidthA, int paperHeightA,
bool noCropA, bool duplexA,
int imgLLXA, int imgLLYA, int imgURXA, int imgURYA,
bool forceRasterizeA,
bool manualCtrlA,
PSOutCustomCodeCbk customCodeCbkA,
void *customCodeCbkDataA) {
underlayCbk = nullptr;
underlayCbkData = nullptr;
overlayCbk = nullptr;
overlayCbkData = nullptr;
customCodeCbk = customCodeCbkA;
customCodeCbkData = customCodeCbkDataA;
fontIDs = nullptr;
t1FontNames = nullptr;
font8Info = nullptr;
font16Enc = nullptr;
imgIDs = nullptr;
formIDs = nullptr;
paperSizes = nullptr;
embFontList = nullptr;
customColors = nullptr;
haveTextClip = false;
t3String = nullptr;
forceRasterize = forceRasterizeA;
psTitle = nullptr;
init(outputFuncA, outputStreamA, psGeneric, psTitleA,
docA, pagesA, modeA,
imgLLXA, imgLLYA, imgURXA, imgURYA, manualCtrlA,
paperWidthA, paperHeightA, noCropA, duplexA);
}
struct StandardMedia {
const char *name;
int width;
int height;
};
static const StandardMedia standardMedia[] =
{
{ "A0", 2384, 3371 },
{ "A1", 1685, 2384 },
{ "A2", 1190, 1684 },
{ "A3", 842, 1190 },
{ "A4", 595, 842 },
{ "A5", 420, 595 },
{ "B4", 729, 1032 },
{ "B5", 516, 729 },
{ "Letter", 612, 792 },
{ "Tabloid", 792, 1224 },
{ "Ledger", 1224, 792 },
{ "Legal", 612, 1008 },
{ "Statement", 396, 612 },
{ "Executive", 540, 720 },
{ "Folio", 612, 936 },
{ "Quarto", 610, 780 },
{ "10x14", 720, 1008 },
{ nullptr, 0, 0 }
};
/* PLRM specifies a tolerance of 5 points when matching page sizes */
static bool pageDimensionEqual(int a, int b) {
return (abs (a - b) < 5);
}
// Shared initialization of PSOutputDev members.
// Store the values but do not process them so the function that
// created the PSOutputDev can use the various setters to change defaults.
void PSOutputDev::init(PSOutputFunc outputFuncA, void *outputStreamA,
PSFileType fileTypeA, char *psTitleA, PDFDoc *docA,
const std::vector<int> &pagesA, PSOutMode modeA,
int imgLLXA, int imgLLYA, int imgURXA, int imgURYA,
bool manualCtrlA, int paperWidthA, int paperHeightA,
bool noCropA, bool duplexA) {
if (pagesA.empty()) {
ok = false;
return;
}
// initialize
postInitDone = false;
embedType1 = true;
embedTrueType = true;
embedCIDPostScript = true;
embedCIDTrueType = true;
fontPassthrough = false;
optimizeColorSpace = false;
passLevel1CustomColor = false;
preloadImagesForms = false;
generateOPI = false;
useASCIIHex = false;
useBinary = false;
enableLZW = true;
enableFlate = true;
rasterMono = false;
rasterResolution = 300;
uncompressPreloadedImages = false;
psCenter = true;
rasterAntialias = false;
displayText = true;
ok = true;
outputFunc = outputFuncA;
outputStream = outputStreamA;
fileType = fileTypeA;
psTitle = (psTitleA? strdup(psTitleA): nullptr);
doc = docA;
level = globalParams->getPSLevel();
pages = pagesA;
mode = modeA;
paperWidth = paperWidthA;
paperHeight = paperHeightA;
noCrop = noCropA;
duplex = duplexA;
imgLLX = imgLLXA;
imgLLY = imgLLYA;
imgURX = imgURXA;
imgURY = imgURYA;
manualCtrl = manualCtrlA;
xref = nullptr;
processColors = 0;
inType3Char = false;
inUncoloredPattern = false;
t3FillColorOnly = false;
#ifdef OPI_SUPPORT
// initialize OPI nesting levels
opi13Nest = 0;
opi20Nest = 0;
#endif
tx0 = ty0 = -1;
xScale0 = yScale0 = 0;
rotate0 = -1;
clipLLX0 = clipLLY0 = 0;
clipURX0 = clipURY0 = -1;
// initialize sequential page number
seqPage = 1;
}
// Complete the initialization after the function that created the PSOutputDev
// has had a chance to modify default values with the various setters.
void PSOutputDev::postInit()
{
Catalog *catalog;
PDFRectangle *box;
PSOutPaperSize *size;
int w, h, i;
if (postInitDone || !ok) {
return;
}
postInitDone = true;
xref = doc->getXRef();
catalog = doc->getCatalog();
if (paperWidth < 0 || paperHeight < 0) {
paperMatch = true;
} else {
paperMatch = false;
}
paperSizes = new std::vector<PSOutPaperSize*>();
for (size_t pgi = 0; pgi < pages.size(); ++pgi) {
const int pg = pages[pgi];
Page *page = catalog->getPage(pg);
if (page == nullptr)
paperMatch = false;
if (!paperMatch) {
w = paperWidth;
h = paperHeight;
if (w < 0 || h < 0) {
// Unable to obtain a paper size from the document and no page size
// specified. In this case use A4 as the page size to ensure the PS output is
// valid. This will only occur if the PDF is very broken.
w = 595;
h = 842;
}
} else if (noCrop) {
w = (int)ceil(page->getMediaWidth());
h = (int)ceil(page->getMediaHeight());
} else {
w = (int)ceil(page->getCropWidth());
h = (int)ceil(page->getCropHeight());
}
if (paperMatch) {
const int pageRotate = page->getRotate();
if (pageRotate == 90 || pageRotate == 270)
std::swap(w, h);
}
if (w > paperWidth)
paperWidth = w;
if (h > paperHeight)
paperHeight = h;
for (i = 0; i < (int)paperSizes->size(); ++i) {
size = (*paperSizes)[i];
if (pageDimensionEqual(w, size->w) && pageDimensionEqual(h, size->h))
break;
}
if (i == (int)paperSizes->size()) {
const StandardMedia *media = standardMedia;
GooString *name = nullptr;
while (media->name) {
if (pageDimensionEqual(w, media->width) && pageDimensionEqual(h, media->height)) {
name = new GooString(media->name);
w = media->width;
h = media->height;
break;
}
media++;
}
if (!name)
name = GooString::format("{0:d}x{1:d}mm", int(w*25.4/72), int(h*25.4/72));
paperSizes->push_back(new PSOutPaperSize(name, w, h));
}
pagePaperSize.insert(std::pair<int,int>(pg, i));
if (!paperMatch)
break; // we only need one entry when all pages are the same size
}
if (imgLLX == 0 && imgURX == 0 && imgLLY == 0 && imgURY == 0) {
imgLLX = imgLLY = 0;
imgURX = paperWidth;
imgURY = paperHeight;
}
std::vector<int> pageList;
if (mode == psModeForm) {
pageList.push_back(pages[0]);
} else {
pageList = pages;
}
// initialize fontIDs, fontFileIDs, and fontFileNames lists
fontIDSize = 64;
fontIDLen = 0;
fontIDs = (Ref *)gmallocn(fontIDSize, sizeof(Ref));
for (i = 0; i < 14; ++i) {
fontNames.emplace(psBase14SubstFonts[i].psName);
}
t1FontNameSize = 64;
t1FontNameLen = 0;
t1FontNames = (PST1FontName *)gmallocn(t1FontNameSize, sizeof(PST1FontName));
font8InfoLen = 0;
font8InfoSize = 0;
font16EncLen = 0;
font16EncSize = 0;
imgIDLen = 0;
imgIDSize = 0;
formIDLen = 0;
formIDSize = 0;
numSaves = 0;
numTilingPatterns = 0;
nextFunc = 0;
// initialize embedded font resource comment list
embFontList = new GooString();
if (!manualCtrl) {
Page *page;
// this check is needed in case the document has zero pages
if ((page = doc->getPage(pageList[0]))) {
writeHeader(pageList.size(),
page->getMediaBox(),
page->getCropBox(),
page->getRotate(),
psTitle);
} else {
error(errSyntaxError, -1, "Invalid page {0:d}", pageList[0]);
box = new PDFRectangle(0, 0, 1, 1);
writeHeader(pageList.size(), box, box, 0, psTitle);
delete box;
}
if (mode != psModeForm) {
writePS("%%BeginProlog\n");
}
writeXpdfProcset();
if (mode != psModeForm) {
writePS("%%EndProlog\n");
writePS("%%BeginSetup\n");
}
writeDocSetup(catalog, pageList, duplex);
if (mode != psModeForm) {
writePS("%%EndSetup\n");
}
}
}
PSOutputDev::~PSOutputDev() {
PSOutCustomColor *cc;
int i;
if (ok) {
if (!postInitDone) {
postInit();
}
if (!manualCtrl) {
writePS("%%Trailer\n");
writeTrailer();
if (mode != psModeForm) {
writePS("%%EOF\n");
}
}
if (fileType == psFile) {
fclose((FILE *)outputStream);
}
#ifdef HAVE_POPEN
else if (fileType == psPipe) {
pclose((FILE *)outputStream);
#ifndef _WIN32
signal(SIGPIPE, (SignalFunc)SIG_DFL);
#endif
}
#endif
}
if (paperSizes) {
for (auto entry : *paperSizes) {
delete entry;
}
delete paperSizes;
}
if (embFontList) {
delete embFontList;
}
if (fontIDs) {
gfree(fontIDs);
}
if (t1FontNames) {
for (i = 0; i < t1FontNameLen; ++i) {
delete t1FontNames[i].psName;
}
gfree(t1FontNames);
}
if (font8Info) {
for (i = 0; i < font8InfoLen; ++i) {
gfree(font8Info[i].codeToGID);
}
gfree(font8Info);
}
if (font16Enc) {
for (i = 0; i < font16EncLen; ++i) {
if (font16Enc[i].enc) {
delete font16Enc[i].enc;
}
}
gfree(font16Enc);
}
gfree(imgIDs);
gfree(formIDs);
while (customColors) {
cc = customColors;
customColors = cc->next;
delete cc;
}
gfree(psTitle);
}
void PSOutputDev::writeHeader(int nPages,
const PDFRectangle *mediaBox, const PDFRectangle *cropBox,
int pageRotate, const char *title) {
PSOutPaperSize *size;
double x1, y1, x2, y2;
switch (mode) {
case psModePS:
writePS("%!PS-Adobe-3.0\n");
break;
case psModeEPS:
writePS("%!PS-Adobe-3.0 EPSF-3.0\n");
break;
case psModeForm:
writePS("%!PS-Adobe-3.0 Resource-Form\n");
break;
}
writePSFmt("%Produced by poppler pdftops version: {0:s} (http://poppler.freedesktop.org)\n", PACKAGE_VERSION);
Object info = xref->getDocInfo();
if (info.isDict()) {
Object obj1 = info.dictLookup("Creator");
if (obj1.isString()) {
writePS("%%Creator: ");
writePSTextLine(obj1.getString());
}
}
if(title) {
char *sanitizedTitle = strdup(title);
for (unsigned int i = 0; i < strlen(sanitizedTitle); ++i) {
if (sanitizedTitle[i] == '\n' || sanitizedTitle[i] == '\r') {
sanitizedTitle[i] = ' ';
}
}
writePSFmt("%%Title: {0:s}\n", sanitizedTitle);
free(sanitizedTitle);
}
writePSFmt("%%LanguageLevel: {0:d}\n",
(level == psLevel1 || level == psLevel1Sep) ? 1 :
(level == psLevel2 || level == psLevel2Sep) ? 2 : 3);
if (level == psLevel1Sep || level == psLevel2Sep || level == psLevel3Sep) {
writePS("%%DocumentProcessColors: (atend)\n");
writePS("%%DocumentCustomColors: (atend)\n");
}
writePS("%%DocumentSuppliedResources: (atend)\n");
if ((level == psLevel1 || level == psLevel1Sep) && useBinary) {
writePS("%%DocumentData: Binary\n");
}
switch (mode) {
case psModePS:
for (std::size_t i = 0; i < paperSizes->size(); ++i) {
size = (*paperSizes)[i];
writePSFmt("%%{0:s} {1:t} {2:d} {3:d} 0 () ()\n",
i==0 ? "DocumentMedia:" : "+", size->name, size->w, size->h);
}
writePSFmt("%%BoundingBox: 0 0 {0:d} {1:d}\n", paperWidth, paperHeight);
writePSFmt("%%Pages: {0:d}\n", nPages);
writePS("%%EndComments\n");
if (!paperMatch) {
size = (*paperSizes)[0];
writePS("%%BeginDefaults\n");
writePSFmt("%%PageMedia: {0:t}\n", size->name);
writePS("%%EndDefaults\n");
}
break;
case psModeEPS:
epsX1 = cropBox->x1;
epsY1 = cropBox->y1;
epsX2 = cropBox->x2;
epsY2 = cropBox->y2;
if (pageRotate == 0 || pageRotate == 180) {
x1 = epsX1;
y1 = epsY1;
x2 = epsX2;
y2 = epsY2;
} else { // pageRotate == 90 || pageRotate == 270
x1 = 0;
y1 = 0;
x2 = epsY2 - epsY1;
y2 = epsX2 - epsX1;
}
writePSFmt("%%BoundingBox: {0:d} {1:d} {2:d} {3:d}\n",
(int)floor(x1), (int)floor(y1), (int)ceil(x2), (int)ceil(y2));
writePSFmt("%%HiResBoundingBox: {0:.6g} {1:.6g} {2:.6g} {3:.6g}\n",
x1, y1, x2, y2);
writePS("%%DocumentSuppliedResources: (atend)\n");
writePS("%%EndComments\n");
break;
case psModeForm:
writePS("%%EndComments\n");
writePS("32 dict dup begin\n");
writePSFmt("/BBox [{0:d} {1:d} {2:d} {3:d}] def\n",
(int)floor(mediaBox->x1), (int)floor(mediaBox->y1),
(int)ceil(mediaBox->x2), (int)ceil(mediaBox->y2));
writePS("/FormType 1 def\n");
writePS("/Matrix [1 0 0 1 0 0] def\n");
break;
}
}
void PSOutputDev::writeXpdfProcset() {
bool lev1, lev2, lev3, sep, nonSep;
const char **p;
const char *q;
writePSFmt("%%BeginResource: procset xpdf {0:s} 0\n", "3.00");
writePSFmt("%%Copyright: {0:s}\n", xpdfCopyright);
lev1 = lev2 = lev3 = sep = nonSep = true;
for (p = prolog; *p; ++p) {
if ((*p)[0] == '~') {
lev1 = lev2 = lev3 = sep = nonSep = false;
for (q = *p + 1; *q; ++q) {
switch (*q) {
case '1': lev1 = true; break;
case '2': lev2 = true; break;
case '3': lev3 = true; break;
case 's': sep = true; break;
case 'n': nonSep = true; break;
}
}
} else if ((level == psLevel1 && lev1 && nonSep) ||
(level == psLevel1Sep && lev1 && sep) ||
(level == psLevel1Sep && lev2 && sep && getPassLevel1CustomColor()) ||
(level == psLevel2 && lev2 && nonSep) ||
(level == psLevel2Sep && lev2 && sep) ||
(level == psLevel3 && lev3 && nonSep) ||
(level == psLevel3Sep && lev3 && sep)) {
writePSFmt("{0:s}\n", *p);
}
}
writePS("%%EndResource\n");
if (level >= psLevel3) {
for (p = cmapProlog; *p; ++p) {
writePSFmt("{0:s}\n", *p);
}
}
}
void PSOutputDev::writeDocSetup(Catalog *catalog,
const std::vector<int> &pageList,
bool duplexA) {
Page *page;
Dict *resDict;
Annots *annots;
Object *acroForm;
GooString *s;
if (mode == psModeForm) {
// swap the form and xpdf dicts
writePS("xpdf end begin dup begin\n");
} else {
writePS("xpdf begin\n");
}
for (size_t pgi = 0; pgi < pageList.size(); ++pgi) {
const int pg = pageList[pgi];
page = doc->getPage(pg);
if (!page) {
error(errSyntaxError, -1, "Failed writing resources for page {0:d}", pg);
continue;
}
if ((resDict = page->getResourceDict())) {
setupResources(resDict);
}
annots = page->getAnnots();
for (int i = 0; i < annots->getNumAnnots(); ++i) {
Object obj1 = annots->getAnnot(i)->getAppearanceResDict();
if (obj1.isDict()) {
setupResources(obj1.getDict());
}
}
}
if ((acroForm = catalog->getAcroForm()) && acroForm->isDict()) {
Object obj1 = acroForm->dictLookup("DR");
if (obj1.isDict()) {
setupResources(obj1.getDict());
}
obj1 = acroForm->dictLookup("Fields");
if (obj1.isArray()) {
for (int i = 0; i < obj1.arrayGetLength(); ++i) {
Object obj2 = obj1.arrayGet(i);
if (obj2.isDict()) {
Object obj3 = obj2.dictLookup("DR");
if (obj3.isDict()) {
setupResources(obj3.getDict());
}
}
}
}
}
if (mode != psModeForm) {
if (mode != psModeEPS && !manualCtrl) {
writePSFmt("{0:s} pdfSetup\n",
duplexA ? "true" : "false");
if (!paperMatch) {
writePSFmt("{0:d} {1:d} pdfSetupPaper\n", paperWidth, paperHeight);
}
}
#ifdef OPI_SUPPORT
if (generateOPI) {
writePS("/opiMatrix matrix currentmatrix def\n");
}
#endif
}
if (customCodeCbk) {
if ((s = (*customCodeCbk)(this, psOutCustomDocSetup, 0,
customCodeCbkData))) {
writePS(s->c_str());
delete s;
}
}
}
void PSOutputDev::writePageTrailer() {
if (mode != psModeForm) {
writePS("pdfEndPage\n");
}
}
void PSOutputDev::writeTrailer() {
PSOutCustomColor *cc;
if (mode == psModeForm) {
writePS("/Foo exch /Form defineresource pop\n");
} else {
writePS("end\n");
writePS("%%DocumentSuppliedResources:\n");
writePS(embFontList->c_str());
if (level == psLevel1Sep || level == psLevel2Sep ||
level == psLevel3Sep) {
writePS("%%DocumentProcessColors:");
if (processColors & psProcessCyan) {
writePS(" Cyan");
}
if (processColors & psProcessMagenta) {
writePS(" Magenta");
}
if (processColors & psProcessYellow) {
writePS(" Yellow");
}
if (processColors & psProcessBlack) {
writePS(" Black");
}
writePS("\n");
writePS("%%DocumentCustomColors:");
for (cc = customColors; cc; cc = cc->next) {
writePS(" ");
writePSString(cc->name->toStr());
}
writePS("\n");
writePS("%%CMYKCustomColor:\n");
for (cc = customColors; cc; cc = cc->next) {
writePSFmt("%%+ {0:.4g} {1:.4g} {2:.4g} {3:.4g} ",
cc->c, cc->m, cc->y, cc->k);
writePSString(cc->name->toStr());
writePS("\n");
}
}
}
}
void PSOutputDev::setupResources(Dict *resDict) {
bool skip;
setupFonts(resDict);
setupImages(resDict);
setupForms(resDict);
//----- recursively scan XObjects
Object xObjDict = resDict->lookup("XObject");
if (xObjDict.isDict()) {
for (int i = 0; i < xObjDict.dictGetLength(); ++i) {
// avoid infinite recursion on XObjects
skip = false;
const Object &xObjRef = xObjDict.dictGetValNF(i);
if (xObjRef.isRef()) {
Ref ref0 = xObjRef.getRef();
if (resourceIDs.find(ref0.num) != resourceIDs.end()) {
skip = true;
} else {
resourceIDs.insert(ref0.num);
}
}
if (!skip) {
// process the XObject's resource dictionary
Object xObj = xObjDict.dictGetVal(i);
if (xObj.isStream()) {
Object resObj = xObj.streamGetDict()->lookup("Resources");
if (resObj.isDict()) {
setupResources(resObj.getDict());
}
}
}
}
}
//----- recursively scan Patterns
Object patDict = resDict->lookup("Pattern");
if (patDict.isDict()) {
inType3Char = true;
for (int i = 0; i < patDict.dictGetLength(); ++i) {
// avoid infinite recursion on Patterns
skip = false;
const Object &patRef = patDict.dictGetValNF(i);
if (patRef.isRef()) {
Ref ref0 = patRef.getRef();
if (resourceIDs.find(ref0.num) != resourceIDs.end()) {
skip = true;
} else {
resourceIDs.insert(ref0.num);
}
}
if (!skip) {
// process the Pattern's resource dictionary
Object pat = patDict.dictGetVal(i);
if (pat.isStream()) {
Object resObj = pat.streamGetDict()->lookup("Resources");
if (resObj.isDict()) {
setupResources(resObj.getDict());
}
}
}
}
inType3Char = false;
}
}
void PSOutputDev::setupFonts(Dict *resDict) {
Ref r;
GfxFontDict *gfxFontDict;
GfxFont *font;
int i;
gfxFontDict = nullptr;
const Object &obj1 = resDict->lookupNF("Font");
if (obj1.isRef()) {
Object obj2 = obj1.fetch(xref);
if (obj2.isDict()) {
r = obj1.getRef();
gfxFontDict = new GfxFontDict(xref, &r, obj2.getDict());
}
} else if (obj1.isDict()) {
gfxFontDict = new GfxFontDict(xref, nullptr, obj1.getDict());
}
if (gfxFontDict) {
for (i = 0; i < gfxFontDict->getNumFonts(); ++i) {
if ((font = gfxFontDict->getFont(i))) {
setupFont(font, resDict);
}
}
delete gfxFontDict;
}
}
void PSOutputDev::setupFont(GfxFont *font, Dict *parentResDict) {
GfxFontLoc *fontLoc;
GooString *psName;
char buf[16];
bool subst;
UnicodeMap *uMap;
const char *charName;
double xs, ys;
int code;
double w1, w2;
int i, j;
// check if font is already set up
for (i = 0; i < fontIDLen; ++i) {
if (fontIDs[i] == *font->getID()) {
return;
}
}
// add entry to fontIDs list
if (fontIDLen >= fontIDSize) {
fontIDSize += 64;
fontIDs = (Ref *)greallocn(fontIDs, fontIDSize, sizeof(Ref));
}
fontIDs[fontIDLen++] = *font->getID();
psName = nullptr;
xs = ys = 1;
subst = false;
if (font->getType() == fontType3) {
psName = GooString::format("T3_{0:d}_{1:d}",
font->getID()->num, font->getID()->gen);
setupType3Font(font, psName, parentResDict);
} else {
fontLoc = font->locateFont(xref, this);
if (fontLoc != nullptr) {
switch (fontLoc->locType) {
case gfxFontLocEmbedded:
switch (fontLoc->fontType) {
case fontType1:
// this assumes that the PS font name matches the PDF font name
psName = font->getEmbeddedFontName() ? font->getEmbeddedFontName()->copy() : new GooString();
setupEmbeddedType1Font(&fontLoc->embFontID, psName);
break;
case fontType1C:
psName = makePSFontName(font, &fontLoc->embFontID);
setupEmbeddedType1CFont(font, &fontLoc->embFontID, psName);
break;
case fontType1COT:
psName = makePSFontName(font, &fontLoc->embFontID);
setupEmbeddedOpenTypeT1CFont(font, &fontLoc->embFontID, psName);
break;
case fontTrueType:
case fontTrueTypeOT:
psName = makePSFontName(font, font->getID());
setupEmbeddedTrueTypeFont(font, &fontLoc->embFontID, psName);
break;
case fontCIDType0C:
psName = makePSFontName(font, &fontLoc->embFontID);
setupEmbeddedCIDType0Font(font, &fontLoc->embFontID, psName);
break;
case fontCIDType2:
case fontCIDType2OT:
psName = makePSFontName(font, font->getID());
//~ should check to see if font actually uses vertical mode
setupEmbeddedCIDTrueTypeFont(font, &fontLoc->embFontID, psName, true);
break;
case fontCIDType0COT:
psName = makePSFontName(font, &fontLoc->embFontID);
setupEmbeddedOpenTypeCFFFont(font, &fontLoc->embFontID, psName);
break;
default:
break;
}
break;
case gfxFontLocExternal:
//~ add cases for external 16-bit fonts
switch (fontLoc->fontType) {
case fontType1:
if (font->getEmbeddedFontName()) {
// this assumes that the PS font name matches the PDF font name
psName = font->getEmbeddedFontName()->copy();
} else {
//~ this won't work -- the PS font name won't match
psName = makePSFontName(font, font->getID());
}
setupExternalType1Font(fontLoc->path, psName);
break;
case fontTrueType:
case fontTrueTypeOT:
psName = makePSFontName(font, font->getID());
setupExternalTrueTypeFont(font, fontLoc->path, psName);
break;
case fontCIDType2:
case fontCIDType2OT:
psName = makePSFontName(font, font->getID());
//~ should check to see if font actually uses vertical mode
setupExternalCIDTrueTypeFont(font, fontLoc->path, psName, true);
break;
default:
break;
}
break;
case gfxFontLocResident:
psName = fontLoc->path->copy();
break;
}
}
if (!psName) {
if (font->isCIDFont()) {
error(errSyntaxError, -1,
"Couldn't find a font to substitute for '{0:s}' ('{1:s}' character collection)",
font->getName() ? font->getName()->c_str()
: "(unnamed)",
((GfxCIDFont *)font)->getCollection()
? ((GfxCIDFont *)font)->getCollection()->c_str()
: "(unknown)");
if (font16EncLen >= font16EncSize) {
font16EncSize += 16;
font16Enc = (PSFont16Enc *)greallocn(font16Enc,
font16EncSize,
sizeof(PSFont16Enc));
}
font16Enc[font16EncLen].fontID = *font->getID();
font16Enc[font16EncLen].enc = nullptr;
++font16EncLen;
} else {
error(errSyntaxError, -1,
"Couldn't find a font to substitute for '{0:s}'",
font->getName() ? font->getName()->c_str()
: "(unnamed)");
}
delete fontLoc;
return;
}
// scale substituted 8-bit fonts
if (fontLoc->locType == gfxFontLocResident &&
fontLoc->substIdx >= 0) {
subst = true;
for (code = 0; code < 256; ++code) {
if ((charName = ((Gfx8BitFont *)font)->getCharName(code)) &&
charName[0] == 'm' && charName[1] == '\0') {
break;
}
}
if (code < 256) {
w1 = ((Gfx8BitFont *)font)->getWidth(code);
} else {
w1 = 0;
}
w2 = psBase14SubstFonts[fontLoc->substIdx].mWidth;
xs = w1 / w2;
if (xs < 0.1) {
xs = 1;
}
}
// handle encodings for substituted CID fonts
if (fontLoc->locType == gfxFontLocResident &&
fontLoc->fontType >= fontCIDType0) {
subst = true;
if (font16EncLen >= font16EncSize) {
font16EncSize += 16;
font16Enc = (PSFont16Enc *)greallocn(font16Enc,
font16EncSize,
sizeof(PSFont16Enc));
}
font16Enc[font16EncLen].fontID = *font->getID();
if ((uMap = globalParams->getUnicodeMap(fontLoc->encoding))) {
font16Enc[font16EncLen].enc = fontLoc->encoding->copy();
uMap->decRefCnt();
} else {
error(errSyntaxError, -1,
"Couldn't find Unicode map for 16-bit font encoding '{0:t}'",
fontLoc->encoding);
font16Enc[font16EncLen].enc = nullptr;
}
++font16EncLen;
}
delete fontLoc;
}
// generate PostScript code to set up the font
if (font->isCIDFont()) {
if (level == psLevel3 || level == psLevel3Sep) {
writePSFmt("/F{0:d}_{1:d} /{2:t} {3:d} pdfMakeFont16L3\n",
font->getID()->num, font->getID()->gen, psName,
font->getWMode());
} else {
writePSFmt("/F{0:d}_{1:d} /{2:t} {3:d} pdfMakeFont16\n",
font->getID()->num, font->getID()->gen, psName,
font->getWMode());
}
} else {
writePSFmt("/F{0:d}_{1:d} /{2:t} {3:.6g} {4:.6g}\n",
font->getID()->num, font->getID()->gen, psName, xs, ys);
for (i = 0; i < 256; i += 8) {
writePS((char *)((i == 0) ? "[ " : " "));
for (j = 0; j < 8; ++j) {
if (font->getType() == fontTrueType &&
!subst &&
!((Gfx8BitFont *)font)->getHasEncoding()) {
sprintf(buf, "c%02x", i+j);
charName = buf;
} else {
charName = ((Gfx8BitFont *)font)->getCharName(i+j);
}
writePS("/");
writePSName(charName ? charName : (char *)".notdef");
// the empty name is legal in PDF and PostScript, but PostScript
// uses a double-slash (//...) for "immediately evaluated names",
// so we need to add a space character here
if (charName && !charName[0]) {
writePS(" ");
}
}
writePS((i == 256-8) ? (char *)"]\n" : (char *)"\n");
}
writePS("pdfMakeFont\n");
}
delete psName;
}
void PSOutputDev::setupEmbeddedType1Font(Ref *id, GooString *psName) {
static const char hexChar[17] = "0123456789abcdef";
Dict *dict;
long length1, length2, length3;
int c, i;
int start[4];
bool binMode;
bool writePadding = true;
// check if font is already embedded
if (!fontNames.emplace(psName->toStr()).second) {
return;
}
// get the font stream and info
Object obj1, obj2, obj3;
Object refObj(*id);
Object strObj = refObj.fetch(xref);
if (!strObj.isStream()) {
error(errSyntaxError, -1, "Embedded font file object is not a stream");
goto err1;
}
if (!(dict = strObj.streamGetDict())) {
error(errSyntaxError, -1,
"Embedded font stream is missing its dictionary");
goto err1;
}
obj1 = dict->lookup("Length1");
obj2 = dict->lookup("Length2");
obj3 = dict->lookup("Length3");
if (!obj1.isInt() || !obj2.isInt() || !obj3.isInt()) {
error(errSyntaxError, -1,
"Missing length fields in embedded font stream dictionary");
goto err1;
}
length1 = obj1.getInt();
length2 = obj2.getInt();
length3 = obj3.getInt();
// beginning comment
writePSFmt("%%BeginResource: font {0:t}\n", psName);
embFontList->append("%%+ font ");
embFontList->append(psName->c_str());
embFontList->append("\n");
strObj.streamReset();
if (strObj.streamGetChar() == 0x80 &&
strObj.streamGetChar() == 1) {
// PFB format
length1 = strObj.streamGetChar() |
(strObj.streamGetChar() << 8) |
(strObj.streamGetChar() << 16) |
(strObj.streamGetChar() << 24);
} else {
strObj.streamReset();
}
// copy ASCII portion of font
for (i = 0; i < length1 && (c = strObj.streamGetChar()) != EOF; ++i) {
writePSChar(c);
}
// figure out if encrypted portion is binary or ASCII
binMode = false;
for (i = 0; i < 4; ++i) {
start[i] = strObj.streamGetChar();
if (start[i] == EOF) {
error(errSyntaxError, -1,
"Unexpected end of file in embedded font stream");
goto err1;
}
if (!((start[i] >= '0' && start[i] <= '9') ||
(start[i] >= 'A' && start[i] <= 'F') ||
(start[i] >= 'a' && start[i] <= 'f')))
binMode = true;
}
if (length2 == 0)
{
// length2 == 0 is an error
// trying to solve it by just piping all
// the stream data
error(errSyntaxWarning, -1, "Font has length2 as 0, trying to overcome the problem reading the stream until the end");
length2 = INT_MAX;
writePadding = false;
}
// convert binary data to ASCII
if (binMode) {
if (start[0] == 0x80 &&
start[1] == 2) {
length2 = start[2] |
(start[3] << 8) |
(strObj.streamGetChar() << 16) |
(strObj.streamGetChar() << 24);
i = 0;
} else {
for (i = 0; i < 4; ++i) {
writePSChar(hexChar[(start[i] >> 4) & 0x0f]);
writePSChar(hexChar[start[i] & 0x0f]);
}
}
#if 0 // this causes trouble for various PostScript printers
// if Length2 is incorrect (too small), font data gets chopped, so
// we take a few extra characters from the trailer just in case
length2 += length3 >= 8 ? 8 : length3;
#endif
while (i < length2) {
if ((c = strObj.streamGetChar()) == EOF) {
break;
}
writePSChar(hexChar[(c >> 4) & 0x0f]);
writePSChar(hexChar[c & 0x0f]);
if (++i % 32 == 0) {
writePSChar('\n');
}
}
if (i % 32 > 0) {
writePSChar('\n');
}
// already in ASCII format -- just copy it
} else {
for (i = 0; i < 4; ++i) {
writePSChar(start[i]);
}
for (i = 4; i < length2; ++i) {
if ((c = strObj.streamGetChar()) == EOF) {
break;
}
writePSChar(c);
}
}
if (writePadding)
{
if (length3 > 0) {
// write fixed-content portion
c = strObj.streamGetChar();
if (c == 0x80) {
c = strObj.streamGetChar();
if (c == 1) {
length3 = strObj.streamGetChar() |
(strObj.streamGetChar() << 8) |
(strObj.streamGetChar() << 16) |
(strObj.streamGetChar() << 24);
i = 0;
while (i < length3) {
if ((c = strObj.streamGetChar()) == EOF) {
break;
}
writePSChar(c);
++i;
}
}
} else {
if (c != EOF) {
writePSChar(c);
while ((c = strObj.streamGetChar()) != EOF) {
writePSChar(c);
}
}
}
} else {
// write padding and "cleartomark"
for (i = 0; i < 8; ++i) {
writePS("00000000000000000000000000000000"
"00000000000000000000000000000000\n");
}
writePS("cleartomark\n");
}
}
// ending comment
writePS("%%EndResource\n");
err1:
if (strObj.isStream())
strObj.streamClose();
}
void PSOutputDev::setupExternalType1Font(GooString *fileName, GooString *psName) {
static const char hexChar[17] = "0123456789abcdef";
FILE *fontFile;
int c;
if (!fontNames.emplace(psName->toStr()).second) {
return;
}
// beginning comment
writePSFmt("%%BeginResource: font {0:t}\n", psName);
embFontList->append("%%+ font ");
embFontList->append(psName->c_str());
embFontList->append("\n");
// copy the font file
if (!(fontFile = openFile(fileName->c_str(), "rb"))) {
error(errIO, -1, "Couldn't open external font file");
return;
}
c = fgetc(fontFile);
if (c == 0x80) {
// PFB file
ungetc(c, fontFile);
while (!feof(fontFile)) {
fgetc(fontFile); // skip start of segment byte (0x80)
int segType = fgetc(fontFile);
long segLen = fgetc(fontFile) |
(fgetc(fontFile) << 8) |
(fgetc(fontFile) << 16) |
(fgetc(fontFile) << 24);
if (feof(fontFile))
break;
if (segType == 1) {
// ASCII segment
for (long i = 0; i < segLen; i++) {
c = fgetc(fontFile);
if (c == EOF)
break;
writePSChar(c);
}
} else if (segType == 2) {
// binary segment
for (long i = 0; i < segLen; i++) {
c = fgetc(fontFile);
if (c == EOF)
break;
writePSChar(hexChar[(c >> 4) & 0x0f]);
writePSChar(hexChar[c & 0x0f]);
if (i % 36 == 35)
writePSChar('\n');
}
} else {
// end of file
break;
}
}
} else if (c != EOF) {
writePSChar(c);
while ((c = fgetc(fontFile)) != EOF)
writePSChar(c);
}
fclose(fontFile);
// ending comment
writePS("%%EndResource\n");
}
void PSOutputDev::setupEmbeddedType1CFont(GfxFont *font, Ref *id,
GooString *psName) {
char *fontBuf;
int fontLen;
FoFiType1C *ffT1C;
int i;
// check if font is already embedded
for (i = 0; i < t1FontNameLen; ++i) {
if (t1FontNames[i].fontFileID == *id) {
psName->clear();
psName->insert(0, t1FontNames[i].psName);
return;
}
}
if (t1FontNameLen == t1FontNameSize) {
t1FontNameSize *= 2;
t1FontNames = (PST1FontName *)greallocn(t1FontNames, t1FontNameSize,
sizeof(PST1FontName));
}
t1FontNames[t1FontNameLen].fontFileID = *id;
t1FontNames[t1FontNameLen].psName = psName->copy();
++t1FontNameLen;
// beginning comment
writePSFmt("%%BeginResource: font {0:t}\n", psName);
embFontList->append("%%+ font ");
embFontList->append(psName->c_str());
embFontList->append("\n");
// convert it to a Type 1 font
if ((fontBuf = font->readEmbFontFile(xref, &fontLen))) {
if ((ffT1C = FoFiType1C::make(fontBuf, fontLen))) {
ffT1C->convertToType1(psName->c_str(), nullptr, true,
outputFunc, outputStream);
delete ffT1C;
}
gfree(fontBuf);
}
// ending comment
writePS("%%EndResource\n");
}
void PSOutputDev::setupEmbeddedOpenTypeT1CFont(GfxFont *font, Ref *id,
GooString *psName) {
char *fontBuf;
int fontLen;
FoFiTrueType *ffTT;
int i;
// check if font is already embedded
for (i = 0; i < t1FontNameLen; ++i) {
if (t1FontNames[i].fontFileID == *id) {
psName->clear();
psName->insert(0, t1FontNames[i].psName);
return;
}
}
if (t1FontNameLen == t1FontNameSize) {
t1FontNameSize *= 2;
t1FontNames = (PST1FontName *)greallocn(t1FontNames, t1FontNameSize,
sizeof(PST1FontName));
}
t1FontNames[t1FontNameLen].fontFileID = *id;
t1FontNames[t1FontNameLen].psName = psName->copy();
++t1FontNameLen;
// beginning comment
writePSFmt("%%BeginResource: font {0:t}\n", psName);
embFontList->append("%%+ font ");
embFontList->append(psName->c_str());
embFontList->append("\n");
// convert it to a Type 1 font
if ((fontBuf = font->readEmbFontFile(xref, &fontLen))) {
if ((ffTT = FoFiTrueType::make(fontBuf, fontLen))) {
if (ffTT->isOpenTypeCFF()) {
ffTT->convertToType1(psName->c_str(), nullptr, true,
outputFunc, outputStream);
}
delete ffTT;
}
gfree(fontBuf);
}
// ending comment
writePS("%%EndResource\n");
}
void PSOutputDev::setupEmbeddedTrueTypeFont(GfxFont *font, Ref *id,
GooString *psName) {
char *fontBuf;
int fontLen;
FoFiTrueType *ffTT;
int *codeToGID;
// beginning comment
writePSFmt("%%BeginResource: font {0:t}\n", psName);
embFontList->append("%%+ font ");
embFontList->append(psName->c_str());
embFontList->append("\n");
// convert it to a Type 42 font
if ((fontBuf = font->readEmbFontFile(xref, &fontLen))) {
if ((ffTT = FoFiTrueType::make(fontBuf, fontLen))) {
codeToGID = ((Gfx8BitFont *)font)->getCodeToGIDMap(ffTT);
ffTT->convertToType42(psName->c_str(),
((Gfx8BitFont *)font)->getHasEncoding()
? ((Gfx8BitFont *)font)->getEncoding()
: nullptr,
codeToGID, outputFunc, outputStream);
if (codeToGID) {
if (font8InfoLen >= font8InfoSize) {
font8InfoSize += 16;
font8Info = (PSFont8Info *)greallocn(font8Info,
font8InfoSize,
sizeof(PSFont8Info));
}
font8Info[font8InfoLen].fontID = *font->getID();
font8Info[font8InfoLen].codeToGID = codeToGID;
++font8InfoLen;
}
delete ffTT;
}
gfree(fontBuf);
}
// ending comment
writePS("%%EndResource\n");
}
void PSOutputDev::setupExternalTrueTypeFont(GfxFont *font, GooString *fileName,
GooString *psName) {
FoFiTrueType *ffTT;
int *codeToGID;
// beginning comment
writePSFmt("%%BeginResource: font {0:t}\n", psName);
embFontList->append("%%+ font ");
embFontList->append(psName->c_str());
embFontList->append("\n");
// convert it to a Type 42 font
if ((ffTT = FoFiTrueType::load(fileName->c_str()))) {
codeToGID = ((Gfx8BitFont *)font)->getCodeToGIDMap(ffTT);
ffTT->convertToType42(psName->c_str(),
((Gfx8BitFont *)font)->getHasEncoding()
? ((Gfx8BitFont *)font)->getEncoding()
: nullptr,
codeToGID, outputFunc, outputStream);
if (codeToGID) {
if (font8InfoLen >= font8InfoSize) {
font8InfoSize += 16;
font8Info = (PSFont8Info *)greallocn(font8Info,
font8InfoSize,
sizeof(PSFont8Info));
}
font8Info[font8InfoLen].fontID = *font->getID();
font8Info[font8InfoLen].codeToGID = codeToGID;
++font8InfoLen;
}
delete ffTT;
}
// ending comment
writePS("%%EndResource\n");
}
void PSOutputDev::updateFontMaxValidGlyph(GfxFont *font, int maxValidGlyph) {
if (maxValidGlyph >= 0 && font->getName()) {
auto& fontMaxValidGlyph = perFontMaxValidGlyph[font->getName()->toStr()];
if (fontMaxValidGlyph < maxValidGlyph) {
fontMaxValidGlyph = maxValidGlyph;
}
}
}
void PSOutputDev::setupExternalCIDTrueTypeFont(GfxFont *font,
GooString *fileName,
GooString *psName,
bool needVerticalMetrics) {
FoFiTrueType *ffTT;
int *codeToGID;
int codeToGIDLen;
// beginning comment
writePSFmt("%%BeginResource: font {0:t}\n", psName);
embFontList->append("%%+ font ");
embFontList->append(psName->c_str());
embFontList->append("\n");
// convert it to a Type 0 font
//~ this should use fontNum to load the correct font
if ((ffTT = FoFiTrueType::load(fileName->c_str()))) {
// check for embedding permission
if (ffTT->getEmbeddingRights() >= 1) {
codeToGID = nullptr;
codeToGIDLen = 0;
if (((GfxCIDFont *)font)->getCIDToGID()) {
codeToGIDLen = ((GfxCIDFont *)font)->getCIDToGIDLen();
if (codeToGIDLen) {
codeToGID = (int *)gmallocn(codeToGIDLen, sizeof(int));
memcpy(codeToGID, ((GfxCIDFont *)font)->getCIDToGID(),
codeToGIDLen * sizeof(int));
}
} else {
codeToGID = ((GfxCIDFont *)font)->getCodeToGIDMap(ffTT, &codeToGIDLen);
}
if (ffTT->isOpenTypeCFF()) {
ffTT->convertToCIDType0(psName->c_str(),
codeToGID, codeToGIDLen,
outputFunc, outputStream);
} else if (globalParams->getPSLevel() >= psLevel3) {
// Level 3: use a CID font
ffTT->convertToCIDType2(psName->c_str(),
codeToGID, codeToGIDLen,
needVerticalMetrics,
outputFunc, outputStream);
} else {
// otherwise: use a non-CID composite font
int maxValidGlyph = -1;
ffTT->convertToType0(psName->c_str(),
codeToGID, codeToGIDLen,
needVerticalMetrics,
&maxValidGlyph,
outputFunc, outputStream);
updateFontMaxValidGlyph(font, maxValidGlyph);
}
gfree(codeToGID);
} else {
error(errSyntaxError, -1,
"TrueType font '{0:s}' does not allow embedding",
font->getName() ? font->getName()->c_str() : "(unnamed)");
}
delete ffTT;
}
// ending comment
writePS("%%EndResource\n");
}
void PSOutputDev::setupEmbeddedCIDType0Font(GfxFont *font, Ref *id,
GooString *psName) {
char *fontBuf;
int fontLen;
FoFiType1C *ffT1C;
int i;
// check if font is already embedded
for (i = 0; i < t1FontNameLen; ++i) {
if (t1FontNames[i].fontFileID == *id) {
psName->clear();
psName->insert(0, t1FontNames[i].psName);
return;
}
}
if (t1FontNameLen == t1FontNameSize) {
t1FontNameSize *= 2;
t1FontNames = (PST1FontName *)greallocn(t1FontNames, t1FontNameSize,
sizeof(PST1FontName));
}
t1FontNames[t1FontNameLen].fontFileID = *id;
t1FontNames[t1FontNameLen].psName = psName->copy();
++t1FontNameLen;
// beginning comment
writePSFmt("%%BeginResource: font {0:t}\n", psName);
embFontList->append("%%+ font ");
embFontList->append(psName->c_str());
embFontList->append("\n");
// convert it to a Type 0 font
if ((fontBuf = font->readEmbFontFile(xref, &fontLen))) {
if ((ffT1C = FoFiType1C::make(fontBuf, fontLen))) {
if (globalParams->getPSLevel() >= psLevel3) {
// Level 3: use a CID font
ffT1C->convertToCIDType0(psName->c_str(), nullptr, 0,
outputFunc, outputStream);
} else {
// otherwise: use a non-CID composite font
ffT1C->convertToType0(psName->c_str(), nullptr, 0,
outputFunc, outputStream);
}
delete ffT1C;
}
gfree(fontBuf);
}
// ending comment
writePS("%%EndResource\n");
}
void PSOutputDev::setupEmbeddedCIDTrueTypeFont(GfxFont *font, Ref *id,
GooString *psName,
bool needVerticalMetrics) {
char *fontBuf;
int fontLen;
FoFiTrueType *ffTT;
// beginning comment
writePSFmt("%%BeginResource: font {0:t}\n", psName);
embFontList->append("%%+ font ");
embFontList->append(psName->c_str());
embFontList->append("\n");
// convert it to a Type 0 font
if ((fontBuf = font->readEmbFontFile(xref, &fontLen))) {
if ((ffTT = FoFiTrueType::make(fontBuf, fontLen))) {
if (globalParams->getPSLevel() >= psLevel3) {
// Level 3: use a CID font
ffTT->convertToCIDType2(psName->c_str(),
((GfxCIDFont *)font)->getCIDToGID(),
((GfxCIDFont *)font)->getCIDToGIDLen(),
needVerticalMetrics,
outputFunc, outputStream);
} else {
// otherwise: use a non-CID composite font
int maxValidGlyph = -1;
ffTT->convertToType0(psName->c_str(),
((GfxCIDFont *)font)->getCIDToGID(),
((GfxCIDFont *)font)->getCIDToGIDLen(),
needVerticalMetrics,
&maxValidGlyph,
outputFunc, outputStream);
updateFontMaxValidGlyph(font, maxValidGlyph);
}
delete ffTT;
}
gfree(fontBuf);
}
// ending comment
writePS("%%EndResource\n");
}
void PSOutputDev::setupEmbeddedOpenTypeCFFFont(GfxFont *font, Ref *id,
GooString *psName) {
char *fontBuf;
int fontLen;
FoFiTrueType *ffTT;
int i;
// check if font is already embedded
for (i = 0; i < t1FontNameLen; ++i) {
if (t1FontNames[i].fontFileID == *id) {
psName->clear();
psName->insert(0, t1FontNames[i].psName);
return;
}
}
if (t1FontNameLen == t1FontNameSize) {
t1FontNameSize *= 2;
t1FontNames = (PST1FontName *)greallocn(t1FontNames, t1FontNameSize,
sizeof(PST1FontName));
}
t1FontNames[t1FontNameLen].fontFileID = *id;
t1FontNames[t1FontNameLen].psName = psName->copy();
++t1FontNameLen;
// beginning comment
writePSFmt("%%BeginResource: font {0:t}\n", psName);
embFontList->append("%%+ font ");
embFontList->append(psName->c_str());
embFontList->append("\n");
// convert it to a Type 0 font
if ((fontBuf = font->readEmbFontFile(xref, &fontLen))) {
if ((ffTT = FoFiTrueType::make(fontBuf, fontLen))) {
if (ffTT->isOpenTypeCFF()) {
if (globalParams->getPSLevel() >= psLevel3) {
// Level 3: use a CID font
ffTT->convertToCIDType0(psName->c_str(),
((GfxCIDFont *)font)->getCIDToGID(),
((GfxCIDFont *)font)->getCIDToGIDLen(),
outputFunc, outputStream);
} else {
// otherwise: use a non-CID composite font
ffTT->convertToType0(psName->c_str(),
((GfxCIDFont *)font)->getCIDToGID(),
((GfxCIDFont *)font)->getCIDToGIDLen(),
outputFunc, outputStream);
}
}
delete ffTT;
}
gfree(fontBuf);
}
// ending comment
writePS("%%EndResource\n");
}
void PSOutputDev::setupType3Font(GfxFont *font, GooString *psName,
Dict *parentResDict) {
Dict *resDict;
Dict *charProcs;
Gfx *gfx;
PDFRectangle box;
const double *m;
GooString *buf;
int i;
// set up resources used by font
if ((resDict = ((Gfx8BitFont *)font)->getResources())) {
inType3Char = true;
setupResources(resDict);
inType3Char = false;
} else {
resDict = parentResDict;
}
// beginning comment
writePSFmt("%%BeginResource: font {0:t}\n", psName);
embFontList->append("%%+ font ");
embFontList->append(psName->c_str());
embFontList->append("\n");
// font dictionary
writePS("8 dict begin\n");
writePS("/FontType 3 def\n");
m = font->getFontMatrix();
writePSFmt("/FontMatrix [{0:.6g} {1:.6g} {2:.6g} {3:.6g} {4:.6g} {5:.6g}] def\n",
m[0], m[1], m[2], m[3], m[4], m[5]);
m = font->getFontBBox();
writePSFmt("/FontBBox [{0:.6g} {1:.6g} {2:.6g} {3:.6g}] def\n",
m[0], m[1], m[2], m[3]);
writePS("/Encoding 256 array def\n");
writePS(" 0 1 255 { Encoding exch /.notdef put } for\n");
writePS("/BuildGlyph {\n");
writePS(" exch /CharProcs get exch\n");
writePS(" 2 copy known not { pop /.notdef } if\n");
writePS(" get exec\n");
writePS("} bind def\n");
writePS("/BuildChar {\n");
writePS(" 1 index /Encoding get exch get\n");
writePS(" 1 index /BuildGlyph get exec\n");
writePS("} bind def\n");
if ((charProcs = ((Gfx8BitFont *)font)->getCharProcs())) {
writePSFmt("/CharProcs {0:d} dict def\n", charProcs->getLength());
writePS("CharProcs begin\n");
box.x1 = m[0];
box.y1 = m[1];
box.x2 = m[2];
box.y2 = m[3];
gfx = new Gfx(doc, this, resDict, &box, nullptr);
inType3Char = true;
for (i = 0; i < charProcs->getLength(); ++i) {
t3FillColorOnly = false;
t3Cacheable = false;
t3NeedsRestore = false;
writePS("/");
writePSName(charProcs->getKey(i));
writePS(" {\n");
Object charProc = charProcs->getVal(i);
gfx->display(&charProc);
if (t3String) {
if (t3Cacheable) {
buf = GooString::format("{0:.6g} {1:.6g} {2:.6g} {3:.6g} {4:.6g} {5:.6g} setcachedevice\n",
t3WX, t3WY, t3LLX, t3LLY, t3URX, t3URY);
} else {
buf = GooString::format("{0:.6g} {1:.6g} setcharwidth\n", t3WX, t3WY);
}
(*outputFunc)(outputStream, buf->c_str(), buf->getLength());
delete buf;
(*outputFunc)(outputStream, t3String->c_str(),
t3String->getLength());
delete t3String;
t3String = nullptr;
}
if (t3NeedsRestore) {
(*outputFunc)(outputStream, "Q\n", 2);
}
writePS("} def\n");
}
inType3Char = false;
delete gfx;
writePS("end\n");
}
writePS("currentdict end\n");
writePSFmt("/{0:t} exch definefont pop\n", psName);
// ending comment
writePS("%%EndResource\n");
}
// Make a unique PS font name, based on the names given in the PDF
// font object, and an object ID (font file object for
GooString *PSOutputDev::makePSFontName(GfxFont *font, const Ref *id) {
GooString *psName;
const GooString *s;
if ((s = font->getEmbeddedFontName())) {
psName = filterPSName(s);
if (fontNames.emplace(psName->toStr()).second) {
return psName;
}
delete psName;
}
if ((s = font->getName())) {
psName = filterPSName(s);
if (fontNames.emplace(psName->toStr()).second) {
return psName;
}
delete psName;
}
psName = GooString::format("FF{0:d}_{1:d}", id->num, id->gen);
if ((s = font->getEmbeddedFontName())) {
s = filterPSName(s);
psName->append('_')->append(s);
delete s;
} else if ((s = font->getName())) {
s = filterPSName(s);
psName->append('_')->append(s);
delete s;
}
fontNames.emplace(psName->toStr());
return psName;
}
void PSOutputDev::setupImages(Dict *resDict) {
Ref imgID;
if (!(mode == psModeForm || inType3Char || preloadImagesForms)) {
return;
}
//----- recursively scan XObjects
Object xObjDict = resDict->lookup("XObject");
if (xObjDict.isDict()) {
for (int i = 0; i < xObjDict.dictGetLength(); ++i) {
const Object &xObjRef = xObjDict.dictGetValNF(i);
Object xObj = xObjDict.dictGetVal(i);
if (xObj.isStream()) {
Object subtypeObj = xObj.streamGetDict()->lookup("Subtype");
if (subtypeObj.isName("Image")) {
if (xObjRef.isRef()) {
imgID = xObjRef.getRef();
int j;
for (j = 0; j < imgIDLen; ++j) {
if (imgIDs[j] == imgID) {
break;
}
}
if (j == imgIDLen) {
if (imgIDLen >= imgIDSize) {
if (imgIDSize == 0) {
imgIDSize = 64;
} else {
imgIDSize *= 2;
}
imgIDs = (Ref *)greallocn(imgIDs, imgIDSize, sizeof(Ref));
}
imgIDs[imgIDLen++] = imgID;
setupImage(imgID, xObj.getStream(), false);
if (level >= psLevel3) {
Object maskObj = xObj.streamGetDict()->lookup("Mask");
if (maskObj.isStream()) {
setupImage(imgID, maskObj.getStream(), true);
}
}
}
} else {
error(errSyntaxError, -1,
"Image in resource dict is not an indirect reference");
}
}
}
}
}
}
void PSOutputDev::setupImage(Ref id, Stream *str, bool mask) {
bool useFlate, useLZW, useRLE, useCompressed, doUseASCIIHex;
GooString *s;
int c;
int size, line, col, i;
int outerSize, outer;
// filters
//~ this does not correctly handle the DeviceN color space
//~ -- need to use DeviceNRecoder
useFlate = useLZW = useRLE = false;
useCompressed = false;
doUseASCIIHex = false;
if (level < psLevel2) {
doUseASCIIHex = true;
} else {
if (uncompressPreloadedImages) {
/* nothing to do */;
} else {
s = str->getPSFilter(level < psLevel3 ? 2 : 3, "");
if (s) {
useCompressed = true;
delete s;
} else {
if (level >= psLevel3 && getEnableFlate()) {
useFlate = true;
} else if (getEnableLZW()) {
useLZW = true;
} else {
useRLE = true;
}
}
}
doUseASCIIHex = useASCIIHex;
}
if (useCompressed) {
str = str->getUndecodedStream();
}
#ifdef ENABLE_ZLIB
if (useFlate) {
str = new FlateEncoder(str);
} else
#endif
if (useLZW) {
str = new LZWEncoder(str);
} else if (useRLE) {
str = new RunLengthEncoder(str);
}
if (doUseASCIIHex) {
str = new ASCIIHexEncoder(str);
} else