Google Git
Sign in
skia / third_party / poppler / refs/tags/poppler-0.5.4 / . / poppler / PSOutputDev.cc
blob: 8e47678cdbd8ea23ae27fa183017c775468b47aa [file] [log] [blame]
//========================================================================
//
// PSOutputDev.cc
//
// Copyright 1996-2003 Glyph & Cog, LLC
//
//========================================================================
#include <config.h>
#ifdef USE_GCC_PRAGMAS
#pragma implementation
#endif
#include <stdio.h>
#include <stddef.h>
#include <stdarg.h>
#include <signal.h>
#include <math.h>
#include "goo/GooString.h"
#include "goo/GooList.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"
#include "Annot.h"
#include "PSOutputDev.h"
#include "UGooString.h"
#ifdef MACOS
// needed for setting type/creator of MacOS files
#include "ICSupport.h"
#endif
//------------------------------------------------------------------------
// 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 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 {",
" 3 1 roll 2 array astore",
" /setpagedevice where {",
" pop 3 dict begin",
" /PageSize exch def",
" /ImagingBBox null def",
" /Policies 1 dict dup begin /PageSize 3 def end def",
" { /Duplex true def } if",
" currentdict end setpagedevice",
" } {",
" pop pop",
" } ifelse",
"} def",
"~1sn",
"/pdfOpNames [",
" /pdfFill /pdfStroke /pdfLastFill /pdfLastStroke",
" /pdfTextMat /pdfFontSize /pdfCharSpacing /pdfTextRender",
" /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",
"~123sn",
" /pdfLastFill false def",
" /pdfLastStroke false def",
" /pdfTextMat [1 0 0 1 0 0] def",
" /pdfFontSize 0 def",
" /pdfCharSpacing 0 def",
" /pdfTextRender 0 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",
"~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",
"~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",
"} 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",
"% 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",
"/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",
"/cshow where {",
" pop",
" /cshow2 {",
" dup {",
" pop pop",
" 1 string dup 0 3 index put 3 index exec",
" } exch cshow",
" pop pop",
" } def",
"}{",
" /cshow2 {",
" currentfont /FontType get 0 eq {",
" 0 2 2 index length 1 sub {",
" 2 copy get exch 1 add 2 index exch get",
" 2 copy exch 256 mul add",
" 2 string dup 0 6 5 roll put dup 1 5 4 roll put",
" 3 index exec",
" } for",
" } {",
" dup {",
" 1 string dup 0 3 index put 3 index exec",
" } forall",
" } ifelse",
" pop pop",
" } def",
"} ifelse",
"/awcp {", // awidthcharpath
" exch {",
" false charpath",
" 5 index 5 index rmoveto",
" 6 index eq { 7 index 7 index rmoveto } if",
" } exch cshow2",
" 6 {pop} repeat",
"} def",
"/Tj {",
" fCol", // because stringwidth has to draw Type 3 chars
" 1 index stringwidth pdfTextMat idtransform pop",
" sub 1 index length dup 0 ne { div } { pop pop 0 } ifelse",
" pdfWordSpacing pdfHorizScaling mul 0 pdfTextMat dtransform 32",
" 4 3 roll pdfCharSpacing pdfHorizScaling mul add 0",
" pdfTextMat dtransform",
" 6 5 roll Tj1",
"} def",
"/Tj16 {",
" fCol", // because stringwidth has to draw Type 3 chars
" 2 index stringwidth pdfTextMat idtransform pop",
" sub exch div",
" pdfWordSpacing pdfHorizScaling mul 0 pdfTextMat dtransform 32",
" 4 3 roll pdfCharSpacing pdfHorizScaling mul add 0",
" pdfTextMat dtransform",
" 6 5 roll Tj1",
"} def",
"/Tj16V {",
" fCol", // because stringwidth has to draw Type 3 chars
" 2 index stringwidth pdfTextMat idtransform exch pop",
" sub exch div",
" 0 pdfWordSpacing pdfTextMat dtransform 32",
" 4 3 roll pdfCharSpacing add 0 exch",
" pdfTextMat dtransform",
" 6 5 roll Tj1",
"} def",
"/Tj1 {",
" 0 pdfTextRise pdfTextMat dtransform rmoveto",
" currentpoint 8 2 roll",
" pdfTextRender 1 and 0 eq {",
" 6 copy awidthshow",
" } if",
" pdfTextRender 3 and dup 1 eq exch 2 eq or {",
" 7 index 7 index moveto",
" 6 copy",
" currentfont /FontType get 3 eq { fCol } { sCol } ifelse",
" false awcp currentpoint stroke moveto",
" } if",
" pdfTextRender 4 and 0 ne {",
" 8 6 roll moveto",
" false awcp",
" /pdfTextClipPath [ pdfTextClipPath aload pop",
" {/moveto cvx}",
" {/lineto cvx}",
" {/curveto cvx}",
" {/closepath cvx}",
" pathforall ] def",
" currentpoint newpath moveto",
" } {",
" 8 {pop} repeat",
" } ifelse",
" 0 pdfTextRise neg pdfTextMat dtransform rmoveto",
"} def",
"/TJm { pdfFontSize 0.001 mul mul neg 0",
" pdfTextMat dtransform rmoveto } def",
"/TJmV { pdfFontSize 0.001 mul mul neg 0 exch",
" pdfTextMat dtransform rmoveto } def",
"/Tclip { pdfTextClipPath cvx exec clip newpath",
" /pdfTextClipPath [] def } def",
"~1ns",
"% Level 1 image operators",
"~1n",
"/pdfIm1 {",
" /pdfImBuf1 4 index string def",
" { currentfile pdfImBuf1 readhexstring 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",
"~1ns",
"/pdfImM1 {",
" fCol /pdfImBuf1 4 index 7 add 8 idiv string def",
" { currentfile pdfImBuf1 readhexstring pop } imagemask",
"} def",
"/pdfImM1a {",
" { 2 copy get exch 1 add exch } imagemask",
" pop pop",
"} def",
"~23sn",
"% Level 2 image operators",
"/pdfImBuf 100 string def",
"/pdfIm {",
" image",
" { currentfile pdfImBuf readline",
" not { pop exit } if",
" (%-EOD-) eq { exit } if } loop",
"} 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",
" { currentfile pdfImBuf readline",
" not { pop exit } if",
" (%-EOD-) eq { exit } if } loop",
"} def",
"~23sn",
"/pdfImM {",
" fCol imagemask",
" { currentfile pdfImBuf readline",
" not { pop exit } if",
" (%-EOD-) eq { exit } if } loop",
"} 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",
"~23n",
"% 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",
" funcCol sc",
" 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 axialCol sc",
" 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 axialCol sc",
" 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",
" 0 360 arc h f*",
" } ifelse",
"} def",
"~123sn",
"end",
NULL
};
static 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",
NULL
};
//------------------------------------------------------------------------
// Fonts
//------------------------------------------------------------------------
struct PSSubstFont {
char *psName; // PostScript name
double mWidth; // width of 'm' character
};
static char *psFonts[] = {
"Courier",
"Courier-Bold",
"Courier-Oblique",
"Courier-BoldOblique",
"Helvetica",
"Helvetica-Bold",
"Helvetica-Oblique",
"Helvetica-BoldOblique",
"Symbol",
"Times-Roman",
"Times-Bold",
"Times-Italic",
"Times-BoldItalic",
"ZapfDingbats",
NULL
};
static PSSubstFont psSubstFonts[] = {
{"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},
{"Courier", 0.600},
{"Courier-Oblique", 0.600},
{"Courier-Bold", 0.600},
{"Courier-BoldOblique", 0.600}
};
// 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();
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 = NULL;
}
PSOutCustomColor::~PSOutCustomColor() {
delete name;
}
//------------------------------------------------------------------------
// DeviceNRecoder
//------------------------------------------------------------------------
class DeviceNRecoder: public FilterStream {
public:
DeviceNRecoder(Stream *strA, int widthA, int heightA,
GfxImageColorMap *colorMapA);
virtual ~DeviceNRecoder();
virtual StreamKind getKind() { return strWeird; }
virtual void reset();
virtual int getChar()
{ return (bufIdx >= bufSize && !fillBuf()) ? EOF : buf[bufIdx++]; }
virtual int lookChar()
{ return (bufIdx >= bufSize && !fillBuf()) ? EOF : buf[bufIdx]; }
virtual GooString *getPSFilter(int psLevel, char *indent) { return NULL; }
virtual GBool isBinary(GBool last = gTrue) { return gTrue; }
virtual GBool isEncoder() { return gTrue; }
private:
GBool 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 = NULL;
pixelIdx = 0;
bufIdx = gfxColorMaxComps;
bufSize = ((GfxDeviceNColorSpace *)colorMap->getColorSpace())->
getAlt()->getNComps();
func = ((GfxDeviceNColorSpace *)colorMap->getColorSpace())->
getTintTransformFunc();
}
DeviceNRecoder::~DeviceNRecoder() {
if (imgStr) {
delete imgStr;
}
}
void DeviceNRecoder::reset() {
imgStr = new ImageStream(str, width, colorMap->getNumPixelComps(),
colorMap->getBits());
imgStr->reset();
}
GBool DeviceNRecoder::fillBuf() {
Guchar pixBuf[gfxColorMaxComps];
GfxColor color;
double x[gfxColorMaxComps], y[gfxColorMaxComps];
int i;
if (pixelIdx >= width * height) {
return gFalse;
}
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 gTrue;
}
//------------------------------------------------------------------------
// PSOutputDev
//------------------------------------------------------------------------
extern "C" {
typedef void (*SignalFunc)(int);
}
static void outputToFile(void *stream, char *data, int len) {
fwrite(data, 1, len, (FILE *)stream);
}
PSOutputDev::PSOutputDev(const char *fileName, XRef *xrefA, Catalog *catalog,
int firstPage, int lastPage, PSOutMode modeA,
int paperWidthA, int paperHeightA, GBool duplexA,
int imgLLXA, int imgLLYA, int imgURXA, int imgURYA,
GBool manualCtrlA) {
FILE *f;
PSFileType fileTypeA;
underlayCbk = NULL;
underlayCbkData = NULL;
overlayCbk = NULL;
overlayCbkData = NULL;
fontIDs = NULL;
fontFileIDs = NULL;
fontFileNames = NULL;
font16Enc = NULL;
xobjStack = NULL;
embFontList = NULL;
customColors = NULL;
haveTextClip = gFalse;
t3String = NULL;
// 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(-1, "Couldn't run print command '%s'", fileName);
ok = gFalse;
return;
}
#else
error(-1, "Print commands are not supported ('%s')", fileName);
ok = gFalse;
return;
#endif
} else {
fileTypeA = psFile;
if (!(f = fopen(fileName, "w"))) {
error(-1, "Couldn't open PostScript file '%s'", fileName);
ok = gFalse;
return;
}
}
init(outputToFile, f, fileTypeA,
xrefA, catalog, firstPage, lastPage, modeA,
imgLLXA, imgLLYA, imgURXA, imgURYA, manualCtrlA,
paperWidthA, paperHeightA, duplexA);
}
PSOutputDev::PSOutputDev(PSOutputFunc outputFuncA, void *outputStreamA,
XRef *xrefA, Catalog *catalog,
int firstPage, int lastPage, PSOutMode modeA,
int paperWidthA, int paperHeightA, GBool duplexA,
int imgLLXA, int imgLLYA, int imgURXA, int imgURYA,
GBool manualCtrlA) {
underlayCbk = NULL;
underlayCbkData = NULL;
overlayCbk = NULL;
overlayCbkData = NULL;
fontIDs = NULL;
fontFileIDs = NULL;
fontFileNames = NULL;
font16Enc = NULL;
xobjStack = NULL;
embFontList = NULL;
customColors = NULL;
haveTextClip = gFalse;
t3String = NULL;
init(outputFuncA, outputStreamA, psGeneric,
xrefA, catalog, firstPage, lastPage, modeA,
imgLLXA, imgLLYA, imgURXA, imgURYA, manualCtrlA,
paperWidthA, paperHeightA, duplexA);
}
void PSOutputDev::init(PSOutputFunc outputFuncA, void *outputStreamA,
PSFileType fileTypeA, XRef *xrefA, Catalog *catalog,
int firstPage, int lastPage, PSOutMode modeA,
int imgLLXA, int imgLLYA, int imgURXA, int imgURYA,
GBool manualCtrlA, int paperWidthA, int paperHeightA,
GBool duplexA) {
Page *page;
PDFRectangle *box;
// initialize
ok = gTrue;
outputFunc = outputFuncA;
outputStream = outputStreamA;
fileType = fileTypeA;
xref = xrefA;
level = globalParams->getPSLevel();
mode = modeA;
paperWidth = paperWidthA;
paperHeight = paperHeightA;
imgLLX = imgLLXA;
imgLLY = imgLLYA;
imgURX = imgURXA;
imgURY = imgURYA;
if (paperWidth < 0 || paperHeight < 0) {
// this check is needed in case the document has zero pages
if (firstPage > 0 && firstPage <= catalog->getNumPages()) {
page = catalog->getPage(firstPage);
paperWidth = (int)ceil(page->getMediaWidth());
paperHeight = (int)ceil(page->getMediaHeight());
} else {
paperWidth = 1;
paperHeight = 1;
}
}
if (imgLLX == 0 && imgURX == 0 && imgLLY == 0 && imgURY == 0) {
globalParams->getPSImageableArea(&imgLLX, &imgLLY, &imgURX, &imgURY);
if (imgURX <= 0 || imgURY <= 0) {
imgLLX = imgLLY = 0;
imgURX = paperWidth;
imgURY = paperHeight;
}
}
manualCtrl = manualCtrlA;
if (mode == psModeForm) {
lastPage = firstPage;
}
processColors = 0;
inType3Char = gFalse;
#if OPI_SUPPORT
// initialize OPI nesting levels
opi13Nest = 0;
opi20Nest = 0;
#endif
tx0 = ty0 = 0;
xScale0 = yScale0 = 0;
rotate0 = -1;
clipLLX0 = clipLLY0 = 0;
clipURX0 = clipURY0 = -1;
// initialize fontIDs, fontFileIDs, and fontFileNames lists
fontIDSize = 64;
fontIDLen = 0;
fontIDs = (Ref *)gmallocn(fontIDSize, sizeof(Ref));
fontFileIDSize = 64;
fontFileIDLen = 0;
fontFileIDs = (Ref *)gmallocn(fontFileIDSize, sizeof(Ref));
fontFileNameSize = 64;
fontFileNameLen = 0;
fontFileNames = (GooString **)gmallocn(fontFileNameSize, sizeof(GooString *));
psFileNames = (GooString **)gmallocn(fontFileNameSize, sizeof(GooString *));
nextTrueTypeNum = 0;
font16EncLen = 0;
font16EncSize = 0;
xobjStack = new GooList();
numSaves = 0;
numTilingPatterns = 0;
nextFunc = 0;
// initialize embedded font resource comment list
embFontList = new GooString();
if (!manualCtrl) {
// this check is needed in case the document has zero pages
if (firstPage > 0 && firstPage <= catalog->getNumPages()) {
writeHeader(firstPage, lastPage,
catalog->getPage(firstPage)->getMediaBox(),
catalog->getPage(firstPage)->getCropBox(),
catalog->getPage(firstPage)->getRotate());
} else {
box = new PDFRectangle(0, 0, 1, 1);
writeHeader(firstPage, lastPage, box, box, 0);
delete box;
}
if (mode != psModeForm) {
writePS("%%BeginProlog\n");
}
writeXpdfProcset();
if (mode != psModeForm) {
writePS("%%EndProlog\n");
writePS("%%BeginSetup\n");
}
writeDocSetup(catalog, firstPage, lastPage, duplexA);
if (mode != psModeForm) {
writePS("%%EndSetup\n");
}
}
// initialize sequential page number
seqPage = 1;
}
PSOutputDev::~PSOutputDev() {
PSOutCustomColor *cc;
int i;
if (ok) {
if (!manualCtrl) {
writePS("%%Trailer\n");
writeTrailer();
if (mode != psModeForm) {
writePS("%%EOF\n");
}
}
if (fileType == psFile) {
#ifdef MACOS
ICS_MapRefNumAndAssign((short)((FILE *)outputStream)->handle);
#endif
fclose((FILE *)outputStream);
}
#ifdef HAVE_POPEN
else if (fileType == psPipe) {
pclose((FILE *)outputStream);
#ifndef WIN32
signal(SIGPIPE, (SignalFunc)SIG_DFL);
#endif
}
#endif
}
if (embFontList) {
delete embFontList;
}
if (fontIDs) {
gfree(fontIDs);
}
if (fontFileIDs) {
gfree(fontFileIDs);
}
if (fontFileNames) {
for (i = 0; i < fontFileNameLen; ++i) {
delete fontFileNames[i];
}
gfree(fontFileNames);
}
if (psFileNames) {
for (i = 0; i < fontFileNameLen; ++i) {
if (psFileNames[i])
delete psFileNames[i];
}
gfree(psFileNames);
}
if (font16Enc) {
for (i = 0; i < font16EncLen; ++i) {
delete font16Enc[i].enc;
}
gfree(font16Enc);
}
if (xobjStack) {
delete xobjStack;
}
while (customColors) {
cc = customColors;
customColors = cc->next;
delete cc;
}
}
void PSOutputDev::writeHeader(int firstPage, int lastPage,
PDFRectangle *mediaBox, PDFRectangle *cropBox,
int pageRotate) {
double x1, y1, x2, y2;
switch (mode) {
case psModePS:
writePS("%!PS-Adobe-3.0\n");
writePSFmt("%%%%Creator: xpdf/pdftops %s\n", xpdfVersion);
writePSFmt("%%%%LanguageLevel: %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");
writePSFmt("%%%%DocumentMedia: plain %d %d 0 () ()\n",
paperWidth, paperHeight);
writePSFmt("%%%%BoundingBox: 0 0 %d %d\n", paperWidth, paperHeight);
writePSFmt("%%%%Pages: %d\n", lastPage - firstPage + 1);
writePS("%%EndComments\n");
writePS("%%BeginDefaults\n");
writePS("%%PageMedia: plain\n");
writePS("%%EndDefaults\n");
break;
case psModeEPS:
writePS("%!PS-Adobe-3.0 EPSF-3.0\n");
writePSFmt("%%%%Creator: xpdf/pdftops %s\n", xpdfVersion);
writePSFmt("%%%%LanguageLevel: %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");
}
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: %d %d %d %d\n",
(int)floor(x1), (int)floor(y1), (int)ceil(x2), (int)ceil(y2));
if (floor(x1) != ceil(x1) || floor(y1) != ceil(y1) ||
floor(x2) != ceil(x2) || floor(y2) != ceil(y2)) {
writePSFmt("%%%%HiResBoundingBox: %g %g %g %g\n", x1, y1, x2, y2);
}
writePS("%%DocumentSuppliedResources: (atend)\n");
writePS("%%EndComments\n");
break;
case psModeForm:
writePS("%!PS-Adobe-3.0 Resource-Form\n");
writePSFmt("%%%%Creator: xpdf/pdftops %s\n", xpdfVersion);
writePSFmt("%%%%LanguageLevel: %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");
writePS("%%EndComments\n");
writePS("32 dict dup begin\n");
writePSFmt("/BBox [%d %d %d %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() {
GBool lev1, lev2, lev3, sep, nonSep;
char **p;
char *q;
writePSFmt("%%%%BeginResource: procset xpdf %s 0\n", xpdfVersion);
lev1 = lev2 = lev3 = sep = nonSep = gTrue;
for (p = prolog; *p; ++p) {
if ((*p)[0] == '~') {
lev1 = lev2 = lev3 = sep = nonSep = gFalse;
for (q = *p + 1; *q; ++q) {
switch (*q) {
case '1': lev1 = gTrue; break;
case '2': lev2 = gTrue; break;
case '3': lev3 = gTrue; break;
case 's': sep = gTrue; break;
case 'n': nonSep = gTrue; break;
}
}
} else if ((level == psLevel1 && lev1 && nonSep) ||
(level == psLevel1Sep && lev1 && sep) ||
(level == psLevel2 && lev2 && nonSep) ||
(level == psLevel2Sep && lev2 && sep) ||
(level == psLevel3 && lev3 && nonSep) ||
(level == psLevel3Sep && lev3 && sep)) {
writePSFmt("%s\n", *p);
}
}
writePS("%%EndResource\n");
if (level >= psLevel3) {
for (p = cmapProlog; *p; ++p) {
writePSFmt("%s\n", *p);
}
}
}
void PSOutputDev::writeDocSetup(Catalog *catalog,
int firstPage, int lastPage,
GBool duplexA) {
Page *page;
Dict *resDict;
Annots *annots;
Object obj1, obj2;
int pg, i;
if (mode == psModeForm) {
// swap the form and xpdf dicts
writePS("xpdf end begin dup begin\n");
} else {
writePS("xpdf begin\n");
}
for (pg = firstPage; pg <= lastPage; ++pg) {
page = catalog->getPage(pg);
if ((resDict = page->getResourceDict())) {
setupResources(resDict);
}
annots = new Annots(xref, catalog, page->getAnnots(&obj1));
obj1.free();
for (i = 0; i < annots->getNumAnnots(); ++i) {
if (annots->getAnnot(i)->getAppearance(&obj1)->isStream()) {
obj1.streamGetDict()->lookup("Resources", &obj2);
if (obj2.isDict()) {
setupResources(obj2.getDict());
}
obj2.free();
}
obj1.free();
}
delete annots;
}
if (mode != psModeForm) {
if (mode != psModeEPS && !manualCtrl) {
writePSFmt("%d %d %s pdfSetup\n",
paperWidth, paperHeight, duplexA ? "true" : "false");
}
#if OPI_SUPPORT
if (globalParams->getPSOPI()) {
writePS("/opiMatrix matrix currentmatrix def\n");
}
#endif
}
}
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->getCString());
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) {
writePSFmt(" (%s)", cc->name->getCString());
}
writePS("\n");
writePS("%%CMYKCustomColor:\n");
for (cc = customColors; cc; cc = cc->next) {
writePSFmt("%%%%+ %g %g %g %g (%s)\n",
cc->c, cc->m, cc->y, cc->k, cc->name->getCString());
}
}
}
}
void PSOutputDev::setupResources(Dict *resDict) {
Object xObjDict, xObjRef, xObj, patDict, patRef, pat, resObj;
Ref ref0, ref1;
GBool skip;
int i, j;
setupFonts(resDict);
setupImages(resDict);
//----- recursively scan XObjects
resDict->lookup("XObject", &xObjDict);
if (xObjDict.isDict()) {
for (i = 0; i < xObjDict.dictGetLength(); ++i) {
// avoid infinite recursion on XObjects
skip = gFalse;
if ((xObjDict.dictGetValNF(i, &xObjRef)->isRef())) {
ref0 = xObjRef.getRef();
for (j = 0; j < xobjStack->getLength(); ++j) {
ref1 = *(Ref *)xobjStack->get(j);
if (ref1.num == ref0.num && ref1.gen == ref0.gen) {
skip = gTrue;
break;
}
}
if (!skip) {
xobjStack->append(&ref0);
}
}
if (!skip) {
// process the XObject's resource dictionary
xObjDict.dictGetVal(i, &xObj);
if (xObj.isStream()) {
xObj.streamGetDict()->lookup("Resources", &resObj);
if (resObj.isDict()) {
setupResources(resObj.getDict());
}
resObj.free();
}
xObj.free();
}
if (xObjRef.isRef() && !skip) {
xobjStack->del(xobjStack->getLength() - 1);
}
xObjRef.free();
}
}
xObjDict.free();
//----- recursively scan Patterns
resDict->lookup("Pattern", &patDict);
if (patDict.isDict()) {
inType3Char = gTrue;
for (i = 0; i < patDict.dictGetLength(); ++i) {
// avoid infinite recursion on Patterns
skip = gFalse;
if ((patDict.dictGetValNF(i, &patRef)->isRef())) {
ref0 = patRef.getRef();
for (j = 0; j < xobjStack->getLength(); ++j) {
ref1 = *(Ref *)xobjStack->get(j);
if (ref1.num == ref0.num && ref1.gen == ref0.gen) {
skip = gTrue;
break;
}
}
if (!skip) {
xobjStack->append(&ref0);
}
}
if (!skip) {
// process the Pattern's resource dictionary
patDict.dictGetVal(i, &pat);
if (pat.isStream()) {
pat.streamGetDict()->lookup("Resources", &resObj);
if (resObj.isDict()) {
setupResources(resObj.getDict());
}
resObj.free();
}
pat.free();
}
if (patRef.isRef() && !skip) {
xobjStack->del(xobjStack->getLength() - 1);
}
patRef.free();
}
inType3Char = gFalse;
}
patDict.free();
}
void PSOutputDev::setupFonts(Dict *resDict) {
Object obj1, obj2;
Ref r;
GfxFontDict *gfxFontDict;
GfxFont *font;
int i;
gfxFontDict = NULL;
resDict->lookupNF("Font", &obj1);
if (obj1.isRef()) {
obj1.fetch(xref, &obj2);
if (obj2.isDict()) {
r = obj1.getRef();
gfxFontDict = new GfxFontDict(xref, &r, obj2.getDict());
}
obj2.free();
} else if (obj1.isDict()) {
gfxFontDict = new GfxFontDict(xref, NULL, obj1.getDict());
}
if (gfxFontDict) {
for (i = 0; i < gfxFontDict->getNumFonts(); ++i) {
if ((font = gfxFontDict->getFont(i))) {
setupFont(font, resDict);
}
}
delete gfxFontDict;
}
obj1.free();
}
void PSOutputDev::setupFont(GfxFont *font, Dict *parentResDict) {
Ref fontFileID;
GooString *name;
PSFontParam *fontParam;
GooString *psName;
char type3Name[64], buf[16];
GBool subst;
UnicodeMap *uMap;
char *charName;
double xs, ys;
int code;
double w1, w2;
double *fm;
int i, j;
DisplayFontParam *dfp;
// check if font is already set up
for (i = 0; i < fontIDLen; ++i) {
if (fontIDs[i].num == font->getID()->num &&
fontIDs[i].gen == font->getID()->gen) {
return;
}
}
// add entry to fontIDs list
if (fontIDLen >= fontIDSize) {
fontIDSize += 64;
fontIDs = (Ref *)greallocn(fontIDs, fontIDSize, sizeof(Ref));
}
fontIDs[fontIDLen++] = *font->getID();
xs = ys = 1;
subst = gFalse;
// check for resident 8-bit font
if (font->getName() &&
(fontParam = globalParams->getPSFont(font->getName()))) {
psName = new GooString(fontParam->psFontName->getCString());
// check for embedded Type 1 font
} else if (globalParams->getPSEmbedType1() &&
font->getType() == fontType1 &&
font->getEmbeddedFontID(&fontFileID)) {
psName = filterPSName(font->getEmbeddedFontName());
setupEmbeddedType1Font(&fontFileID, psName);
// check for embedded Type 1C font
} else if (globalParams->getPSEmbedType1() &&
font->getType() == fontType1C &&
font->getEmbeddedFontID(&fontFileID)) {
psName = filterPSName(font->getEmbeddedFontName());
setupEmbeddedType1CFont(font, &fontFileID, psName);
// check for external Type 1 font file
} else if (globalParams->getPSEmbedType1() &&
font->getType() == fontType1 &&
font->getExtFontFile()) {
// this assumes that the PS font name matches the PDF font name
psName = font->getName()->copy();
setupExternalType1Font(font->getExtFontFile(), psName);
// check for embedded TrueType font
} else if (globalParams->getPSEmbedTrueType() &&
font->getType() == fontTrueType &&
font->getEmbeddedFontID(&fontFileID)) {
psName = filterPSName(font->getEmbeddedFontName());
setupEmbeddedTrueTypeFont(font, &fontFileID, psName);
// check for external TrueType font file
} else if (globalParams->getPSEmbedTrueType() &&
font->getType() == fontTrueType &&
font->getExtFontFile()) {
psName = setupExternalTrueTypeFont(font);
// check for embedded CID PostScript font
} else if (globalParams->getPSEmbedCIDPostScript() &&
font->getType() == fontCIDType0C &&
font->getEmbeddedFontID(&fontFileID)) {
psName = filterPSName(font->getEmbeddedFontName());
setupEmbeddedCIDType0Font(font, &fontFileID, psName);
// check for embedded CID TrueType font
} else if (globalParams->getPSEmbedCIDTrueType() &&
font->getType() == fontCIDType2 &&
font->getEmbeddedFontID(&fontFileID)) {
psName = filterPSName(font->getEmbeddedFontName());
setupEmbeddedCIDTrueTypeFont(font, &fontFileID, psName, gTrue);
} else if (font->getType() == fontType3) {
sprintf(type3Name, "T3_%d_%d",
font->getID()->num, font->getID()->gen);
psName = new GooString(type3Name);
setupType3Font(font, psName, parentResDict);
// check for external CID TrueType font file
} else if (globalParams->getPSEmbedCIDTrueType() &&
font->getType() == fontCIDType2 &&
font->getExtFontFile()) {
psName = setupExternalCIDTrueTypeFont(font, font->getExtFontFile());
// do 8-bit font substitution
} else if (!font->isCIDFont()) {
subst = gTrue;
name = font->getName();
psName = NULL;
if (name) {
for (i = 0; psFonts[i]; ++i) {
if (name->cmp(psFonts[i]) == 0) {
psName = new GooString(psFonts[i]);
break;
}
}
}
if (!psName) {
if (font->isFixedWidth()) {
i = 8;
} else if (font->isSerif()) {
i = 4;
} else {
i = 0;
}
if (font->isBold()) {
i += 2;
}
if (font->isItalic()) {
i += 1;
}
psName = new GooString(psSubstFonts[i].psName);
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 = psSubstFonts[i].mWidth;
xs = w1 / w2;
if (xs < 0.1) {
xs = 1;
}
if (font->getType() == fontType3) {
// This is a hack which makes it possible to substitute for some
// Type 3 fonts. The problem is that it's impossible to know what
// the base coordinate system used in the font is without actually
// rendering the font.
ys = xs;
fm = font->getFontMatrix();
if (fm[0] != 0) {
ys *= fm[3] / fm[0];
}
} else {
ys = 1;
}
}
// do 16-bit font substitution
} else if ((fontParam = globalParams->
getPSFont16(font->getName(),
((GfxCIDFont *)font)->getCollection(),
font->getWMode()))) {
subst = gTrue;
psName = fontParam->psFontName->copy();
if (font16EncLen >= font16EncSize) {
font16EncSize += 16;
font16Enc = (PSFont16Enc *)greallocn(font16Enc,
font16EncSize, sizeof(PSFont16Enc));
}
font16Enc[font16EncLen].fontID = *font->getID();
font16Enc[font16EncLen].enc = fontParam->encoding->copy();
if ((uMap = globalParams->getUnicodeMap(font16Enc[font16EncLen].enc))) {
uMap->decRefCnt();
++font16EncLen;
} else {
error(-1, "Couldn't find Unicode map for 16-bit font encoding '%s'",
font16Enc[font16EncLen].enc->getCString());
}
// try the display font for embedding
} else if (globalParams->getPSEmbedCIDTrueType() &&
((GfxCIDFont *)font)->getCollection() &&
(dfp = globalParams->
getDisplayFont(font)) &&
dfp->kind == displayFontTT) {
psName = setupExternalCIDTrueTypeFont(font, dfp->tt.fileName, dfp->tt.faceIndex);
// give up - can't do anything with this font
} else {
error(-1, "Couldn't find a font to substitute for '%s' ('%s' character collection)",
font->getName() ? font->getName()->getCString() : "(unnamed)",
((GfxCIDFont *)font)->getCollection()
? ((GfxCIDFont *)font)->getCollection()->getCString()
: "(unknown)");
return;
}
// generate PostScript code to set up the font
if (font->isCIDFont()) {
if (level == psLevel3 || level == psLevel3Sep) {
writePSFmt("/F%d_%d /%s %d pdfMakeFont16L3\n",
font->getID()->num, font->getID()->gen, psName->getCString(),
font->getWMode());
} else {
writePSFmt("/F%d_%d /%s %d pdfMakeFont16\n",
font->getID()->num, font->getID()->gen, psName->getCString(),
font->getWMode());
}
} else {
writePSFmt("/F%d_%d /%s %g %g\n",
font->getID()->num, font->getID()->gen, psName->getCString(),
xs, ys);
for (i = 0; i < 256; i += 8) {
writePSFmt((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);
// this is a kludge for broken PDF files that encode char 32
// as .notdef
if (i+j == 32 && charName && !strcmp(charName, ".notdef")) {
charName = "space";
}
}
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 char hexChar[17] = "0123456789abcdef";
Object refObj, strObj, obj1, obj2, obj3;
Dict *dict;
int length1, length2, length3;
int c;
int start[4];
GBool binMode;
int i;
// check if font is already embedded
for (i = 0; i < fontFileIDLen; ++i) {
if (fontFileIDs[i].num == id->num &&
fontFileIDs[i].gen == id->gen)
return;
}
// add entry to fontFileIDs list
if (fontFileIDLen >= fontFileIDSize) {
fontFileIDSize += 64;
fontFileIDs = (Ref *)greallocn(fontFileIDs, fontFileIDSize, sizeof(Ref));
}
fontFileIDs[fontFileIDLen++] = *id;
// get the font stream and info
refObj.initRef(id->num, id->gen);
refObj.fetch(xref, &strObj);
refObj.free();
if (!strObj.isStream()) {
error(-1, "Embedded font file object is not a stream");
goto err1;
}
if (!(dict = strObj.streamGetDict())) {
error(-1, "Embedded font stream is missing its dictionary");
goto err1;
}
dict->lookup("Length1", &obj1);
dict->lookup("Length2", &obj2);
dict->lookup("Length3", &obj3);
if (!obj1.isInt() || !obj2.isInt() || !obj3.isInt()) {
error(-1, "Missing length fields in embedded font stream dictionary");
obj1.free();
obj2.free();
obj3.free();
goto err1;
}
length1 = obj1.getInt();
length2 = obj2.getInt();
length3 = obj3.getInt();
obj1.free();
obj2.free();
obj3.free();
// beginning comment
writePSFmt("%%%%BeginResource: font %s\n", psName->getCString());
embFontList->append("%%+ font ");
embFontList->append(psName->getCString());
embFontList->append("\n");
// copy ASCII portion of font
strObj.streamReset();
for (i = 0; i < length1 && (c = strObj.streamGetChar()) != EOF; ++i) {
writePSChar(c);
}
// figure out if encrypted portion is binary or ASCII
binMode = gFalse;
for (i = 0; i < 4; ++i) {
start[i] = strObj.streamGetChar();
if (start[i] == EOF) {
error(-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 = gTrue;
}
// convert binary data to ASCII
if (binMode) {
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);
}
}
// write padding and "cleartomark"
for (i = 0; i < 8; ++i) {
writePS("00000000000000000000000000000000"
"00000000000000000000000000000000\n");
}
writePS("cleartomark\n");
// ending comment
writePS("%%EndResource\n");
err1:
strObj.streamClose();
strObj.free();
}
//~ This doesn't handle .pfb files or binary eexec data (which only
//~ happens in pfb files?).
void PSOutputDev::setupExternalType1Font(GooString *fileName, GooString *psName) {
FILE *fontFile;
int c;
int i;
// check if font is already embedded
for (i = 0; i < fontFileNameLen; ++i) {
if (!fontFileNames[i]->cmp(fileName)) {
return;
}
}
// add entry to fontFileNames list
if (fontFileNameLen >= fontFileNameSize) {
fontFileNameSize += 64;
fontFileNames = (GooString **)greallocn(fontFileNames,
fontFileNameSize, sizeof(GooString *));
psFileNames = (GooString **)greallocn(psFileNames,
fontFileNameSize, sizeof(GooString *));
}
fontFileNames[fontFileNameLen] = fileName->copy();
psFileNames[fontFileNameLen] = psName->copy();
fontFileNameLen++;
// beginning comment
writePSFmt("%%%%BeginResource: font %s\n", psName->getCString());
embFontList->append("%%+ font ");
embFontList->append(psName->getCString());
embFontList->append("\n");
// copy the font file
if (!(fontFile = fopen(fileName->getCString(), "rb"))) {
error(-1, "Couldn't open external font file");
return;
}
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 < fontFileIDLen; ++i) {
if (fontFileIDs[i].num == id->num &&
fontFileIDs[i].gen == id->gen)
return;
}
// add entry to fontFileIDs list
if (fontFileIDLen >= fontFileIDSize) {
fontFileIDSize += 64;
fontFileIDs = (Ref *)greallocn(fontFileIDs, fontFileIDSize, sizeof(Ref));
}
fontFileIDs[fontFileIDLen++] = *id;
// beginning comment
writePSFmt("%%%%BeginResource: font %s\n", psName->getCString());
embFontList->append("%%+ font ");
embFontList->append(psName->getCString());
embFontList->append("\n");
// convert it to a Type 1 font
fontBuf = font->readEmbFontFile(xref, &fontLen);
if ((ffT1C = FoFiType1C::make(fontBuf, fontLen))) {
ffT1C->convertToType1(NULL, gTrue, outputFunc, outputStream);
delete ffT1C;
}
gfree(fontBuf);
// ending comment
writePS("%%EndResource\n");
}
void PSOutputDev::setupEmbeddedTrueTypeFont(GfxFont *font, Ref *id,
GooString *psName) {
char unique[32];
char *fontBuf;
int fontLen;
FoFiTrueType *ffTT;
Gushort *codeToGID;
int i;
// check if font is already embedded
for (i = 0; i < fontFileIDLen; ++i) {
if (fontFileIDs[i].num == id->num &&
fontFileIDs[i].gen == id->gen) {
sprintf(unique, "_%d", nextTrueTypeNum++);
psName->append(unique);
break;
}
}
// add entry to fontFileIDs list
if (i == fontFileIDLen) {
if (fontFileIDLen >= fontFileIDSize) {
fontFileIDSize += 64;
fontFileIDs = (Ref *)greallocn(fontFileIDs, fontFileIDSize, sizeof(Ref));
}
fontFileIDs[fontFileIDLen++] = *id;
}
// beginning comment
writePSFmt("%%%%BeginResource: font %s\n", psName->getCString());
embFontList->append("%%+ font ");
embFontList->append(psName->getCString());
embFontList->append("\n");
// convert it to a Type 42 font
fontBuf = font->readEmbFontFile(xref, &fontLen);
if ((ffTT = FoFiTrueType::make(fontBuf, fontLen))) {
codeToGID = ((Gfx8BitFont *)font)->getCodeToGIDMap(ffTT);
ffTT->convertToType42(psName->getCString(),
((Gfx8BitFont *)font)->getHasEncoding()
? ((Gfx8BitFont *)font)->getEncoding()
: (char **)NULL,
codeToGID, outputFunc, outputStream);
gfree(codeToGID);
delete ffTT;
}
gfree(fontBuf);
// ending comment
writePS("%%EndResource\n");
}
GooString *PSOutputDev::setupExternalTrueTypeFont(GfxFont *font) {
GooString *fileName;
char *fontBuf;
int fontLen;
FoFiTrueType *ffTT;
Gushort *codeToGID;
GooString *psName;
int i;
// check if font is already embedded
fileName = font->getExtFontFile();
for (i = 0; i < fontFileNameLen; ++i) {
if (!fontFileNames[i]->cmp(fileName)) {
return psFileNames[i]->copy();
}
}
psName = filterPSName(font->getName());
// add entry to fontFileNames list
if (i == fontFileNameLen) {
if (fontFileNameLen >= fontFileNameSize) {
fontFileNameSize += 64;
fontFileNames =
(GooString **)greallocn(fontFileNames,
fontFileNameSize, sizeof(GooString *));
psFileNames =
(GooString **)greallocn(psFileNames,
fontFileNameSize, sizeof(GooString *));
}
}
fontFileNames[fontFileNameLen] = fileName->copy();
psFileNames[fontFileNameLen] = psName->copy();
fontFileNameLen++;
// beginning comment
writePSFmt("%%%%BeginResource: font %s\n", psName->getCString());
embFontList->append("%%+ font ");
embFontList->append(psName->getCString());
embFontList->append("\n");
// convert it to a Type 42 font
fontBuf = font->readExtFontFile(&fontLen);
if ((ffTT = FoFiTrueType::make(fontBuf, fontLen))) {
codeToGID = ((Gfx8BitFont *)font)->getCodeToGIDMap(ffTT);
ffTT->convertToType42(psName->getCString(),
((Gfx8BitFont *)font)->getHasEncoding()
? ((Gfx8BitFont *)font)->getEncoding()
: (char **)NULL,
codeToGID, outputFunc, outputStream);
delete ffTT;
}
gfree(fontBuf);
// ending comment
writePS("%%EndResource\n");
return psName;
}
GooString *PSOutputDev::setupExternalCIDTrueTypeFont(GfxFont *font, GooString *fileName, int faceIndex) {
// char *fontBuf;
// int fontLen;
FoFiTrueType *ffTT;
Gushort *codeToGID;
GooString *psName;
int i;
GooString *myFileName;
myFileName = fileName->copy();
if (faceIndex > 0) {
char tmp[32];
sprintf(tmp, ",%d", faceIndex);
myFileName->append(tmp);
}
// check if font is already embedded
for (i = 0; i < fontFileNameLen; ++i) {
if (!fontFileNames[i]->cmp(myFileName)) {
delete myFileName;
return psFileNames[i]->copy();
}
}
psName = filterPSName(font->getName());
// add entry to fontFileNames list
if (i == fontFileNameLen) {
if (fontFileNameLen >= fontFileNameSize) {
fontFileNameSize += 64;
fontFileNames =
(GooString **)grealloc(fontFileNames,
fontFileNameSize * sizeof(GooString *));
psFileNames =
(GooString **)grealloc(psFileNames,
fontFileNameSize * sizeof(GooString *));
}
}
fontFileNames[fontFileNameLen] = myFileName;
psFileNames[fontFileNameLen] = psName->copy();
fontFileNameLen++;
// beginning comment
writePSFmt("%%%%BeginResource: font %s\n", psName->getCString());
embFontList->append("%%+ font ");
embFontList->append(psName->getCString());
embFontList->append("\n");
// convert it to a CID type2 font
if ((ffTT = FoFiTrueType::load(fileName->getCString(), faceIndex))) {
int n = ((GfxCIDFont *)font)->getCIDToGIDLen();
if (n) {
codeToGID = (Gushort *)gmalloc(n * sizeof(Gushort));
memcpy(codeToGID, ((GfxCIDFont *)font)->getCIDToGID(), n * sizeof(Gushort));
} else {
codeToGID = ((GfxCIDFont *)font)->getCodeToGIDMap(ffTT, &n);
}
if (globalParams->getPSLevel() >= psLevel3) {
// Level 3: use a CID font
ffTT->convertToCIDType2(psName->getCString(),
codeToGID, n, gTrue,
outputFunc, outputStream);
} else {
// otherwise: use a non-CID composite font
ffTT->convertToType0(psName->getCString(),
codeToGID, n, gTrue,
outputFunc, outputStream);
}
gfree(codeToGID);
delete ffTT;
}
// ending comment
writePS("%%EndResource\n");
return psName;
}
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 < fontFileIDLen; ++i) {
if (fontFileIDs[i].num == id->num &&
fontFileIDs[i].gen == id->gen)
return;
}
// add entry to fontFileIDs list
if (fontFileIDLen >= fontFileIDSize) {
fontFileIDSize += 64;
fontFileIDs = (Ref *)greallocn(fontFileIDs, fontFileIDSize, sizeof(Ref));
}
fontFileIDs[fontFileIDLen++] = *id;
// beginning comment
writePSFmt("%%%%BeginResource: font %s\n", psName->getCString());
embFontList->append("%%+ font ");
embFontList->append(psName->getCString());
embFontList->append("\n");
// convert it to a Type 0 font
fontBuf = font->readEmbFontFile(xref, &fontLen);
if ((ffT1C = FoFiType1C::make(fontBuf, fontLen))) {
if (globalParams->getPSLevel() >= psLevel3) {
// Level 3: use a CID font
ffT1C->convertToCIDType0(psName->getCString(), outputFunc, outputStream);
} else {
// otherwise: use a non-CID composite font
ffT1C->convertToType0(psName->getCString(), outputFunc, outputStream);
}
delete ffT1C;
}
gfree(fontBuf);
// ending comment
writePS("%%EndResource\n");
}
void PSOutputDev::setupEmbeddedCIDTrueTypeFont(GfxFont *font, Ref *id,
GooString *psName,
GBool needVerticalMetrics) {
char unique[32];
char *fontBuf;
int fontLen;
FoFiTrueType *ffTT;
int i;
// check if font is already embedded
for (i = 0; i < fontFileIDLen; ++i) {
if (fontFileIDs[i].num == id->num &&
fontFileIDs[i].gen == id->gen) {
sprintf(unique, "_%d", nextTrueTypeNum++);
psName->append(unique);
break;
}
}
// add entry to fontFileIDs list
if (fontFileIDLen >= fontFileIDSize) {
fontFileIDSize += 64;
fontFileIDs = (Ref *)greallocn(fontFileIDs, fontFileIDSize, sizeof(Ref));
}
fontFileIDs[fontFileIDLen++] = *id;
// beginning comment
writePSFmt("%%%%BeginResource: font %s\n", psName->getCString());
embFontList->append("%%+ font ");
embFontList->append(psName->getCString());
embFontList->append("\n");
// convert it to a Type 0 font
fontBuf = font->readEmbFontFile(xref, &fontLen);
if ((ffTT = FoFiTrueType::make(fontBuf, fontLen))) {
if (globalParams->getPSLevel() >= psLevel3) {
// Level 3: use a CID font
ffTT->convertToCIDType2(psName->getCString(),
((GfxCIDFont *)font)->getCIDToGID(),
((GfxCIDFont *)font)->getCIDToGIDLen(),
needVerticalMetrics,
outputFunc, outputStream);
} else {
// otherwise: use a non-CID composite font
ffTT->convertToType0(psName->getCString(),
((GfxCIDFont *)font)->getCIDToGID(),
((GfxCIDFont *)font)->getCIDToGIDLen(),
needVerticalMetrics,
outputFunc, outputStream);
}
delete ffTT;
}
gfree(fontBuf);
// ending comment
writePS("%%EndResource\n");
}
void PSOutputDev::setupType3Font(GfxFont *font, GooString *psName,
Dict *parentResDict) {
Dict *resDict;
Dict *charProcs;
Object charProc;
Gfx *gfx;
PDFRectangle box;
double *m;
char buf[256];
int i;
// set up resources used by font
if ((resDict = ((Gfx8BitFont *)font)->getResources())) {
inType3Char = gTrue;
setupResources(resDict);
inType3Char = gFalse;
} else {
resDict = parentResDict;
}
// beginning comment
writePSFmt("%%%%BeginResource: font %s\n", psName->getCString());
embFontList->append("%%+ font ");
embFontList->append(psName->getCString());
embFontList->append("\n");
// font dictionary
writePS("8 dict begin\n");
writePS("/FontType 3 def\n");
m = font->getFontMatrix();
writePSFmt("/FontMatrix [%g %g %g %g %g %g] def\n",
m[0], m[1], m[2], m[3], m[4], m[5]);
m = font->getFontBBox();
writePSFmt("/FontBBox [%g %g %g %g] 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 %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(xref, this, resDict, &box, NULL);
inType3Char = gTrue;
t3Cacheable = gFalse;
for (i = 0; i < charProcs->getLength(); ++i) {
writePS("/");
char *aux = charProcs->getKey(i)->getCString();
writePSName(aux);
delete[] aux;
writePS(" {\n");
gfx->display(charProcs->getVal(i, &charProc));
charProc.free();
if (t3String) {
if (t3Cacheable) {
sprintf(buf, "%g %g %g %g %g %g setcachedevice\n",
t3WX, t3WY, t3LLX, t3LLY, t3URX, t3URY);
} else {
sprintf(buf, "%g %g setcharwidth\n", t3WX, t3WY);
}
(*outputFunc)(outputStream, buf, strlen(buf));
(*outputFunc)(outputStream, t3String->getCString(),
t3String->getLength());
delete t3String;
t3String = NULL;
}
(*outputFunc)(outputStream, "Q\n", 2);
writePS("} def\n");
}
inType3Char = gFalse;
delete gfx;
writePS("end\n");
}
writePS("currentdict end\n");
writePSFmt("/%s exch definefont pop\n", psName->getCString());
// ending comment
writePS("%%EndResource\n");
}
void PSOutputDev::setupImages(Dict *resDict) {
Object xObjDict, xObj, xObjRef, subtypeObj;
int i;
if (!(mode == psModeForm || inType3Char)) {
return;
}
//----- recursively scan XObjects
resDict->lookup("XObject", &xObjDict);
if (xObjDict.isDict()) {
for (i = 0; i < xObjDict.dictGetLength(); ++i) {
xObjDict.dictGetValNF(i, &xObjRef);
xObjDict.dictGetVal(i, &xObj);
if (xObj.isStream()) {
xObj.streamGetDict()->lookup("Subtype", &subtypeObj);
if (subtypeObj.isName("Image")) {
if (xObjRef.isRef()) {
setupImage(xObjRef.getRef(), xObj.getStream());
} else {
error(-1, "Image in resource dict is not an indirect reference");
}
}
subtypeObj.free();
}
xObj.free();
xObjRef.free();
}
}
xObjDict.free();
}
void PSOutputDev::setupImage(Ref id, Stream *str) {
GBool useASCIIHex;
int c;
int size, line, col, i;
// construct an encoder stream
useASCIIHex = level == psLevel1 || level == psLevel1Sep ||
globalParams->getPSASCIIHex();
if (useASCIIHex) {
str = new ASCIIHexEncoder(str);
} else {
str = new ASCII85Encoder(str);
}
// compute image data size
str->reset();
col = size = 0;
do {
do {
c = str->getChar();
} while (c == '\n' || c == '\r');
if (c == (useASCIIHex ? '>' : '~') || c == EOF) {
break;
}
if (c == 'z') {
++col;
} else {
++col;
for (i = 1; i <= (useASCIIHex ? 1 : 4); ++i) {
do {
c = str->getChar();
} while (c == '\n' || c == '\r');
if (c == (useASCIIHex ? '>' : '~') || c == EOF) {
break;
}
++col;
}
}
if (col > 225) {
++size;
col = 0;
}
} while (c != (useASCIIHex ? '>' : '~') && c != EOF);
++size;
writePSFmt("%d array dup /ImData_%d_%d exch def\n", size, id.num, id.gen);
str->close();
// write the data into the array
str->reset();
line = col = 0;
writePS((char *)(useASCIIHex ? "dup 0 <" : "dup 0 <~"));
do {
do {
c = str->getChar();
} while (c == '\n' || c == '\r');
if (c == (useASCIIHex ? '>' : '~') || c == EOF) {
break;
}
if (c == 'z') {
writePSChar(c);
++col;
} else {
writePSChar(c);
++col;
for (i = 1; i <= (useASCIIHex ? 1 : 4); ++i) {
do {
c = str->getChar();
} while (c == '\n' || c == '\r');
if (c == (useASCIIHex ? '>' : '~') || c == EOF) {
break;
}
writePSChar(c);
++col;
}
}
// each line is: "dup nnnnn <~...data...~> put<eol>"
// so max data length = 255 - 20 = 235
// chunks are 1 or 4 bytes each, so we have to stop at 232
// but make it 225 just to be safe
if (col > 225) {
writePS((char *)(useASCIIHex ? "> put\n" : "~> put\n"));
++line;
writePSFmt((char *)(useASCIIHex ? "dup %d <" : "dup %d <~"), line);
col = 0;
}
} while (c != (useASCIIHex ? '>' : '~') && c != EOF);
writePS((char *)(useASCIIHex ? "> put\n" : "~> put\n"));
writePS("pop\n");
str->close();
delete str;
}
void PSOutputDev::startPage(int pageNum, GfxState *state) {
int x1, y1, x2, y2, width, height;
int imgWidth, imgHeight, imgWidth2, imgHeight2;
GBool landscape;
if (mode == psModePS) {
writePSFmt("%%%%Page: %d %d\n", pageNum, seqPage);
writePS("%%BeginPageSetup\n");
}
// underlays
if (underlayCbk) {
(*underlayCbk)(this, underlayCbkData);
}
if (overlayCbk) {
saveState(NULL);
}
switch (mode) {
case psModePS:
// rotate, translate, and scale page
imgWidth = imgURX - imgLLX;
imgHeight = imgURY - imgLLY;
x1 = (int)floor(state->getX1());
y1 = (int)floor(state->getY1());
x2 = (int)ceil(state->getX2());
y2 = (int)ceil(state->getY2());
width = x2 - x1;
height = y2 - y1;
tx = ty = 0;
// rotation and portrait/landscape mode
if (rotate0 >= 0) {
rotate = (360 - rotate0) % 360;
landscape = gFalse;
} else {
rotate = (360 - state->getRotate()) % 360;
if (rotate == 0 || rotate == 180) {
if (width > height && width > imgWidth) {
rotate += 90;
landscape = gTrue;
} else {
landscape = gFalse;
}
} else { // rotate == 90 || rotate == 270
if (height > width && height > imgWidth) {
rotate = 270 - rotate;
landscape = gTrue;
} else {
landscape = gFalse;
}
}
}
writePSFmt("%%%%PageOrientation: %s\n",
landscape ? "Landscape" : "Portrait");
writePS("pdfStartPage\n");
if (rotate == 0) {
imgWidth2 = imgWidth;
imgHeight2 = imgHeight;
} else if (rotate == 90) {
writePS("90 rotate\n");
ty = -imgWidth;
imgWidth2 = imgHeight;
imgHeight2 = imgWidth;
} else if (rotate == 180) {
writePS("180 rotate\n");
imgWidth2 = imgWidth;
imgHeight2 = imgHeight;
tx = -imgWidth;
ty = -imgHeight;
} else { // rotate == 270
writePS("270 rotate\n");
tx = -imgHeight;
imgWidth2 = imgHeight;
imgHeight2 = imgWidth;
}
// shrink or expand
if (xScale0 > 0 && yScale0 > 0) {
xScale = xScale0;
yScale = yScale0;
} else if ((globalParams->getPSShrinkLarger() &&
(width > imgWidth2 || height > imgHeight2)) ||
(globalParams->getPSExpandSmaller() &&
(width < imgWidth2 && height < imgHeight2))) {
xScale = (double)imgWidth2 / (double)width;
yScale = (double)imgHeight2 / (double)height;
if (yScale < xScale) {
xScale = yScale;
} else {
yScale = xScale;
}
} else {
xScale = yScale = 1;
}
// deal with odd bounding boxes or clipping
if (clipLLX0 < clipURX0 && clipLLY0 < clipURY0) {
tx -= xScale * clipLLX0;
ty -= yScale * clipLLY0;
} else {
tx -= xScale * x1;
ty -= yScale * y1;
}
// center
if (globalParams->getPSCenter()) {
if (clipLLX0 < clipURX0 && clipLLY0 < clipURY0) {
tx += (imgWidth2 - xScale * (clipURX0 - clipLLX0)) / 2;
ty += (imgHeight2 - yScale * (clipURY0 - clipLLY0)) / 2;
} else {
tx += (imgWidth2 - xScale * width) / 2;
ty += (imgHeight2 - yScale * height) / 2;
}
}
tx += rotate == 0 ? imgLLX + tx0 : imgLLY + ty0;
ty += rotate == 0 ? imgLLY + ty0 : -(imgLLX + tx0);
if (tx != 0 || ty != 0) {
writePSFmt("%g %g translate\n", tx, ty);
}
if (xScale != 1 || yScale != 1) {
writePSFmt("%0.4f %0.4f scale\n", xScale, xScale);
}
if (clipLLX0 < clipURX0 && clipLLY0 < clipURY0) {
writePSFmt("%g %g %g %g re W\n",
clipLLX0, clipLLY0, clipURX0 - clipLLX0, clipURY0 - clipLLY0);
} else {
writePSFmt("%d %d %d %d re W\n", x1, y1, x2 - x1, y2 - y1);
}
writePS("%%EndPageSetup\n");
++seqPage;
break;
case psModeEPS:
writePS("pdfStartPage\n");
tx = ty = 0;
rotate = (360 - state->getRotate()) % 360;
if (rotate == 0) {
} else if (rotate == 90) {
writePS("90 rotate\n");
tx = -epsX1;
ty = -epsY2;
} else if (rotate == 180) {
writePS("180 rotate\n");
tx = -(epsX1 + epsX2);
ty = -(epsY1 + epsY2);
} else { // rotate == 270
writePS("270 rotate\n");
tx = -epsX2;
ty = -epsY1;
}
if (tx != 0 || ty != 0) {
writePSFmt("%g %g translate\n", tx, ty);
}
xScale = yScale = 1;
break;
case psModeForm:
writePS("/PaintProc {\n");
writePS("begin xpdf begin\n");
writePS("pdfStartPage\n");
tx = ty = 0;
xScale = yScale = 1;
rotate = 0;
break;
}
}
void PSOutputDev::endPage() {
if (overlayCbk) {
restoreState(NULL);
(*overlayCbk)(this, overlayCbkData);
}
if (mode == psModeForm) {
writePS("pdfEndPage\n");
writePS("end end\n");
writePS("} def\n");
writePS("end end\n");
} else {
if (!manualCtrl) {
writePS("showpage\n");
}
writePS("%%PageTrailer\n");
writePageTrailer();
}
}
void PSOutputDev::saveState(GfxState *state) {
writePS("q\n");
++numSaves;
}
void PSOutputDev::restoreState(GfxState *state) {
writePS("Q\n");
--numSaves;
}
void PSOutputDev::updateCTM(GfxState *state, double m11, double m12,
double m21, double m22, double m31, double m32) {
writePSFmt("[%g %g %g %g %g %g] cm\n", m11, m12, m21, m22, m31, m32);
}
void PSOutputDev::updateLineDash(GfxState *state) {
double *dash;
double start;
int length, i;
state->getLineDash(&dash, &length, &start);
writePS("[");
for (i = 0; i < length; ++i) {
writePSFmt("%g%s",
dash[i] == 0 ? 1 : dash[i],
(i == length-1) ? "" : " ");
}
writePSFmt("] %g d\n", start);
}
void PSOutputDev::updateFlatness(GfxState *state) {
writePSFmt("%d i\n", state->getFlatness());
}
void PSOutputDev::updateLineJoin(GfxState *state) {
writePSFmt("%d j\n", state->getLineJoin());
}
void PSOutputDev::updateLineCap(GfxState *state) {
writePSFmt("%d J\n", state->getLineCap());
}
void PSOutputDev::updateMiterLimit(GfxState *state) {
writePSFmt("%g M\n", state->getMiterLimit());
}
void PSOutputDev::updateLineWidth(GfxState *state) {
writePSFmt("%g w\n", state->getLineWidth());
}
void PSOutputDev::updateFillColorSpace(GfxState *state) {
switch (level) {
case psLevel1:
case psLevel1Sep:
break;
case psLevel2:
case psLevel3:
if (state->getFillColorSpace()->getMode() != csPattern) {
dumpColorSpaceL2(state->getFillColorSpace(), gTrue, gFalse);
writePS(" cs\n");
}
break;
case psLevel2Sep:
case psLevel3Sep:
break;
}
}
void PSOutputDev::updateStrokeColorSpace(GfxState *state) {
switch (level) {
case psLevel1:
case psLevel1Sep:
break;
case psLevel2:
case psLevel3:
if (state->getStrokeColorSpace()->getMode() != csPattern) {
dumpColorSpaceL2(state->getStrokeColorSpace(), gTrue, gFalse);
writePS(" CS\n");
}
break;
case psLevel2Sep:
case psLevel3Sep:
break;
}
}
void PSOutputDev::updateFillColor(GfxState *state) {
GfxColor color;
GfxColor *colorPtr;
GfxGray gray;
GfxCMYK cmyk;
GfxSeparationColorSpace *sepCS;
double c, m, y, k;
int i;
switch (level) {
case psLevel1:
state->getFillGray(&gray);
writePSFmt("%g g\n", colToDbl(gray));
break;
case psLevel1Sep:
state->getFillCMYK(&cmyk);
c = colToDbl(cmyk.c);
m = colToDbl(cmyk.m);
y = colToDbl(cmyk.y);
k = colToDbl(cmyk.k);
writePSFmt("%g %g %g %g k\n", c, m, y, k);
addProcessColor(c, m, y, k);
break;
case psLevel2:
case psLevel3:
if (state->getFillColorSpace()->getMode() != csPattern) {
colorPtr = state->getFillColor();
writePS("[");
for (i = 0; i < state->getFillColorSpace()->getNComps(); ++i) {
if (i > 0) {
writePS(" ");
}
writePSFmt("%g", colToDbl(colorPtr->c[i]));
}
writePS("] sc\n");
}
break;
case psLevel2Sep:
case psLevel3Sep:
if (state->getFillColorSpace()->getMode() == csSeparation) {
sepCS = (GfxSeparationColorSpace *)state->getFillColorSpace();
color.c[0] = gfxColorComp1;
sepCS->getCMYK(&color, &cmyk);
writePSFmt("%g %g %g %g %g (%s) ck\n",
colToDbl(state->getFillColor()->c[0]),
colToDbl(cmyk.c), colToDbl(cmyk.m),
colToDbl(cmyk.y), colToDbl(cmyk.k),
sepCS->getName()->getCString());
addCustomColor(sepCS);
} else {
state->getFillCMYK(&cmyk);
c = colToDbl(cmyk.c);
m = colToDbl(cmyk.m);
y = colToDbl(cmyk.y);
k = colToDbl(cmyk.k);
writePSFmt("%g %g %g %g k\n", c, m, y, k);
addProcessColor(c, m, y, k);
}
break;
}
t3Cacheable = gFalse;
}
void PSOutputDev::updateStrokeColor(GfxState *state) {
GfxColor color;
GfxColor *colorPtr;
GfxGray gray;
GfxCMYK cmyk;
GfxSeparationColorSpace *sepCS;
double c, m, y, k;
int i;
switch (level) {
case psLevel1:
state->getStrokeGray(&gray);
writePSFmt("%g G\n", colToDbl(gray));
break;
case psLevel1Sep:
state->getStrokeCMYK(&cmyk);
c = colToDbl(cmyk.c);
m = colToDbl(cmyk.m);
y = colToDbl(cmyk.y);
k = colToDbl(cmyk.k);
writePSFmt("%g %g %g %g K\n", c, m, y, k);
addProcessColor(c, m, y, k);
break;
case psLevel2:
case psLevel3:
if (state->getStrokeColorSpace()->getMode() != csPattern) {
colorPtr = state->getStrokeColor();
writePS("[");
for (i = 0; i < state->getStrokeColorSpace()->getNComps(); ++i) {
if (i > 0) {
writePS(" ");
}
writePSFmt("%g", colToDbl(colorPtr->c[i]));
}
writePS("] SC\n");
}
break;
case psLevel2Sep:
case psLevel3Sep:
if (state->getStrokeColorSpace()->getMode() == csSeparation) {
sepCS = (GfxSeparationColorSpace *)state->getStrokeColorSpace();
color.c[0] = gfxColorComp1;
sepCS->getCMYK(&color, &cmyk);
writePSFmt("%g %g %g %g %g (%s) CK\n",
colToDbl(state->getStrokeColor()->c[0]),
colToDbl(cmyk.c), colToDbl(cmyk.m),
colToDbl(cmyk.y), colToDbl(cmyk.k),
sepCS->getName()->getCString());
addCustomColor(sepCS);
} else {
state->getStrokeCMYK(&cmyk);
c = colToDbl(cmyk.c);
m = colToDbl(cmyk.m);
y = colToDbl(cmyk.y);
k = colToDbl(cmyk.k);
writePSFmt("%g %g %g %g K\n", c, m, y, k);
addProcessColor(c, m, y, k);
}
break;
}
t3Cacheable = gFalse;
}
void PSOutputDev::addProcessColor(double c, double m, double y, double k) {
if (c > 0) {
processColors |= psProcessCyan;
}
if (m > 0) {
processColors |= psProcessMagenta;
}
if (y > 0) {
processColors |= psProcessYellow;
}
if (k > 0) {
processColors |= psProcessBlack;
}
}
void PSOutputDev::addCustomColor(GfxSeparationColorSpace *sepCS) {
PSOutCustomColor *cc;
GfxColor color;
GfxCMYK cmyk;
for (cc = customColors; cc; cc = cc->next) {
if (!cc->name->cmp(sepCS->getName())) {
return;
}
}
color.c[0] = gfxColorComp1;
sepCS->getCMYK(&color, &cmyk);
cc = new PSOutCustomColor(colToDbl(cmyk.c), colToDbl(cmyk.m),
colToDbl(cmyk.y), colToDbl(cmyk.k),
sepCS->getName()->copy());
cc->next = customColors;
customColors = cc;
}
void PSOutputDev::updateFillOverprint(GfxState *state) {
if (level >= psLevel2) {
writePSFmt("%s op\n", state->getFillOverprint() ? "true" : "false");
}
}
void PSOutputDev::updateStrokeOverprint(GfxState *state) {
if (level >= psLevel2) {
writePSFmt("%s OP\n", state->getStrokeOverprint() ? "true" : "false");
}
}
void PSOutputDev::updateFont(GfxState *state) {
if (state->getFont()) {
writePSFmt("/F%d_%d %g Tf\n",
state->getFont()->getID()->num, state->getFont()->getID()->gen,
fabs(state->getFontSize()) < 0.00001 ? 0.00001
: state->getFontSize());
}
}
void PSOutputDev::updateTextMat(GfxState *state) {
double *mat;
mat = state->getTextMat();
if (fabs(mat[0] * mat[3] - mat[1] * mat[2]) < 0.00001) {
// avoid a singular (or close-to-singular) matrix
writePSFmt("[0.00001 0 0 0.00001 %g %g] Tm\n", mat[4], mat[5]);
} else {
writePSFmt("[%g %g %g %g %g %g] Tm\n",
mat[0], mat[1], mat[2], mat[3], mat[4], mat[5]);
}
}
void PSOutputDev::updateCharSpace(GfxState *state) {
writePSFmt("%g Tc\n", state->getCharSpace());
}
void PSOutputDev::updateRender(GfxState *state) {
int rm;
rm = state->getRender();
writePSFmt("%d Tr\n", rm);
rm &= 3;
if (rm != 0 && rm != 3) {
t3Cacheable = gFalse;
}
}
void PSOutputDev::updateRise(GfxState *state) {
writePSFmt("%g Ts\n", state->getRise());
}
void PSOutputDev::updateWordSpace(GfxState *state) {
writePSFmt("%g Tw\n", state->getWordSpace());
}
void PSOutputDev::updateHorizScaling(GfxState *state) {
double h;
h = state->getHorizScaling();
if (fabs(h) < 0.01) {
h = 0.01;
}
writePSFmt("%g Tz\n", h);
}
void PSOutputDev::updateTextPos(GfxState *state) {
writePSFmt("%g %g Td\n", state->getLineX(), state->getLineY());
}
void PSOutputDev::updateTextShift(GfxState *state, double shift) {
if (state->getFont()->getWMode()) {
writePSFmt("%g TJmV\n", shift);
} else {
writePSFmt("%g TJm\n", shift);
}
}
void PSOutputDev::stroke(GfxState *state) {
doPath(state->getPath());
if (t3String) {
// if we're construct a cacheable Type 3 glyph, we need to do
// everything in the fill color
writePS("Sf\n");
} else {
writePS("S\n");
}
}
void PSOutputDev::fill(GfxState *state) {
doPath(state->getPath());
writePS("f\n");
}
void PSOutputDev::eoFill(GfxState *state) {
doPath(state->getPath());
writePS("f*\n");
}
void PSOutputDev::tilingPatternFill(GfxState *state, Object *str,
int paintType, Dict *resDict,
double *mat, double *bbox,
int x0, int y0, int x1, int y1,
double xStep, double yStep) {
PDFRectangle box;
Gfx *gfx;
// define a Type 3 font
writePS("8 dict begin\n");
writePS("/FontType 3 def\n");
writePS("/FontMatrix [1 0 0 1 0 0] def\n");
writePSFmt("/FontBBox [%g %g %g %g] def\n",
bbox[0], bbox[1], bbox[2], bbox[3]);
writePS("/Encoding 256 array def\n");
writePS(" 0 1 255 { Encoding exch /.notdef put } for\n");
writePS(" Encoding 120 /x put\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");
writePS("/CharProcs 1 dict def\n");
writePS("CharProcs begin\n");
box.x1 = bbox[0];
box.y1 = bbox[1];
box.x2 = bbox[2];
box.y2 = bbox[3];
gfx = new Gfx(xref, this, resDict, &box, NULL);
writePS("/x {\n");
if (paintType == 2) {
writePSFmt("%g 0 %g %g %g %g setcachedevice\n",
xStep, bbox[0], bbox[1], bbox[2], bbox[3]);
} else {
writePSFmt("%g 0 setcharwidth\n", xStep);
}
inType3Char = gTrue;
++numTilingPatterns;
gfx->display(str);
--numTilingPatterns;
inType3Char = gFalse;
writePS("} def\n");
delete gfx;
writePS("end\n");
writePS("currentdict end\n");
writePSFmt("/xpdfTile%d exch definefont pop\n", numTilingPatterns);
// draw the tiles
writePSFmt("/xpdfTile%d findfont setfont\n", numTilingPatterns);
writePSFmt("gsave [%g %g %g %g %g %g] concat\n",
mat[0], mat[1], mat[2], mat[3], mat[4], mat[5]);
writePSFmt("%d 1 %d { %g exch %g mul m %d 1 %d { pop (x) show } for } for\n",
y0, y1 - 1, x0 * xStep, yStep, x0, x1 - 1);
writePS("grestore\n");
}
void PSOutputDev::functionShadedFill(GfxState *state,
GfxFunctionShading *shading) {
double x0, y0, x1, y1;
double *mat;
int i;
shading->getDomain(&x0, &y0, &x1, &y1);
mat = shading->getMatrix();
writePSFmt("/mat [%g %g %g %g %g %g] def\n",
mat[0], mat[1], mat[2], mat[3], mat[4], mat[5]);
writePSFmt("/n %d def\n", shading->getColorSpace()->getNComps());
if (shading->getNFuncs() == 1) {
writePS("/func ");
cvtFunction(shading->getFunc(0));
writePS("def\n");
} else {
writePS("/func {\n");
for (i = 0; i < shading->getNFuncs(); ++i) {
if (i < shading->getNFuncs() - 1) {
writePS("2 copy\n");
}
cvtFunction(shading->getFunc(i));
writePS("exec\n");
if (i < shading->getNFuncs() - 1) {
writePS("3 1 roll\n");
}
}
writePS("} def\n");
}
writePSFmt("%g %g %g %g 0 funcSH\n", x0, y0, x1, y1);
}
void PSOutputDev::axialShadedFill(GfxState *state, GfxAxialShading *shading) {
double xMin, yMin, xMax, yMax;
double x0, y0, x1, y1, dx, dy, mul;
double tMin, tMax, t, t0, t1;
int i;
// get the clip region bbox
state->getUserClipBBox(&xMin, &yMin, &xMax, &yMax);
// compute min and max t values, based on the four corners of the
// clip region bbox
shading->getCoords(&x0, &y0, &x1, &y1);
dx = x1 - x0;
dy = y1 - y0;
mul = 1 / (dx * dx + dy * dy);
tMin = tMax = ((xMin - x0) * dx + (yMin - y0) * dy) * mul;
t = ((xMin - x0) * dx + (yMax - y0) * dy) * mul;
if (t < tMin) {
tMin = t;
} else if (t > tMax) {
tMax = t;
}
t = ((xMax - x0) * dx + (yMin - y0) * dy) * mul;
if (t < tMin) {
tMin = t;
} else if (t > tMax) {
tMax = t;
}
t = ((xMax - x0) * dx + (yMax - y0) * dy) * mul;
if (t < tMin) {
tMin = t;
} else if (t > tMax) {
tMax = t;
}
if (tMin < 0 && !shading->getExtend0()) {
tMin = 0;
}
if (tMax > 1 && !shading->getExtend1()) {
tMax = 1;
}
// get the function domain
t0 = shading->getDomain0();
t1 = shading->getDomain1();
// generate the PS code
writePSFmt("/t0 %g def\n", t0);
writePSFmt("/t1 %g def\n", t1);
writePSFmt("/dt %g def\n", t1 - t0);
writePSFmt("/x0 %g def\n", x0);
writePSFmt("/y0 %g def\n", y0);
writePSFmt("/dx %g def\n", x1 - x0);
writePSFmt("/x1 %g def\n", x1);
writePSFmt("/y1 %g def\n", y1);
writePSFmt("/dy %g def\n", y1 - y0);
writePSFmt("/xMin %g def\n", xMin);
writePSFmt("/yMin %g def\n", yMin);
writePSFmt("/xMax %g def\n", xMax);
writePSFmt("/yMax %g def\n", yMax);
writePSFmt("/n %d def\n", shading->getColorSpace()->getNComps());
if (shading->getNFuncs() == 1) {
writePS("/func ");
cvtFunction(shading->getFunc(0));
writePS("def\n");
} else {
writePS("/func {\n");
for (i = 0; i < shading->getNFuncs(); ++i) {
if (i < shading->getNFuncs() - 1) {
writePS("dup\n");
}
cvtFunction(shading->getFunc(i));
writePS("exec\n");
if (i < shading->getNFuncs() - 1) {
writePS("exch\n");
}
}
writePS("} def\n");
}
writePSFmt("%g %g 0 axialSH\n", tMin, tMax);
}
void PSOutputDev::radialShadedFill(GfxState *state,
GfxRadialShading *shading) {
double x0, y0, r0, x1, y1, r1, t0, t1, sMin, sMax;
double xMin, yMin, xMax, yMax;
double d0, d1;
int i;
// get the shading info
shading->getCoords(&x0, &y0, &r0, &x1, &y1, &r1);
t0 = shading->getDomain0();
t1 = shading->getDomain1();
// compute the (possibly extended) s range
sMin = 0;
sMax = 1;
if (shading->getExtend0()) {
if (r0 < r1) {
// extend the smaller end
sMin = -r0 / (r1 - r0);
} else {
// extend the larger end
state->getUserClipBBox(&xMin, &yMin, &xMax, &yMax);
d0 = (x0 - xMin) * (x0 - xMin);
d1 = (x0 - xMax) * (x0 - xMax);
sMin = d0 > d1 ? d0 : d1;
d0 = (y0 - yMin) * (y0 - yMin);
d1 = (y0 - yMax) * (y0 - yMax);
sMin += d0 > d1 ? d0 : d1;
sMin = (sqrt(sMin) - r0) / (r1 - r0);
if (sMin > 0) {
sMin = 0;
} else if (sMin < -20) {
// sanity check
sMin = -20;
}
}
}
if (shading->getExtend1()) {
if (r1 < r0) {
// extend the smaller end
sMax = -r0 / (r1 - r0);
} else if (r1 > r0) {
// extend the larger end
state->getUserClipBBox(&xMin, &yMin, &xMax, &yMax);
d0 = (x1 - xMin) * (x1 - xMin);
d1 = (x1 - xMax) * (x1 - xMax);
sMax = d0 > d1 ? d0 : d1;
d0 = (y1 - yMin) * (y1 - yMin);
d1 = (y1 - yMax) * (y1 - yMax);
sMax += d0 > d1 ? d0 : d1;
sMax = (sqrt(sMax) - r0) / (r1 - r0);
if (sMax < 1) {
sMax = 1;
} else if (sMax > 20) {
// sanity check
sMax = 20;
}
}
}
// generate the PS code
writePSFmt("/x0 %g def\n", x0);
writePSFmt("/x1 %g def\n", x1);
writePSFmt("/dx %g def\n", x1 - x0);
writePSFmt("/y0 %g def\n", y0);
writePSFmt("/y1 %g def\n", y1);
writePSFmt("/dy %g def\n", y1 - y0);
writePSFmt("/r0 %g def\n", r0);
writePSFmt("/r1 %g def\n", r1);
writePSFmt("/dr %g def\n", r1 - r0);
writePSFmt("/t0 %g def\n", t0);
writePSFmt("/t1 %g def\n", t1);
writePSFmt("/dt %g def\n", t1 - t0);
writePSFmt("/n %d def\n", shading->getColorSpace()->getNComps());
if (shading->getNFuncs() == 1) {
writePS("/func ");
cvtFunction(shading->getFunc(0));
writePS("def\n");
} else {
writePS("/func {\n");
for (i = 0; i < shading->getNFuncs(); ++i) {
if (i < shading->getNFuncs() - 1) {
writePS("dup\n");
}
cvtFunction(shading->getFunc(i));
writePS("exec\n");
if (i < shading->getNFuncs() - 1) {
writePS("exch\n");
}
}
writePS("} def\n");
}
writePSFmt("%g %g 0 radialSH\n", sMin, sMax);
}
void PSOutputDev::clip(GfxState *state) {
doPath(state->getPath());
writePS("W\n");
}
void PSOutputDev::eoClip(GfxState *state) {
doPath(state->getPath());
writePS("W*\n");
}
void PSOutputDev::doPath(GfxPath *path) {
GfxSubpath *subpath;
double x0, y0, x1, y1, x2, y2, x3, y3, x4, y4;
int n, m, i, j;
n = path->getNumSubpaths();
if (n == 1 && path->getSubpath(0)->getNumPoints() == 5) {
subpath = path->getSubpath(0);
x0 = subpath->getX(0);
y0 = subpath->getY(0);
x4 = subpath->getX(4);
y4 = subpath->getY(4);
if (x4 == x0 && y4 == y0) {
x1 = subpath->getX(1);
y1 = subpath->getY(1);
x2 = subpath->getX(2);
y2 = subpath->getY(2);
x3 = subpath->getX(3);
y3 = subpath->getY(3);
if (x0 == x1 && x2 == x3 && y0 == y3 && y1 == y2) {
writePSFmt("%g %g %g %g re\n",
x0 < x2 ? x0 : x2, y0 < y1 ? y0 : y1,
fabs(x2 - x0), fabs(y1 - y0));
return;
} else if (x0 == x3 && x1 == x2 && y0 == y1 && y2 == y3) {
writePSFmt("%g %g %g %g re\n",
x0 < x1 ? x0 : x1, y0 < y2 ? y0 : y2,
fabs(x1 - x0), fabs(y2 - y0));
return;
}
}
}
for (i = 0; i < n; ++i) {
subpath = path->getSubpath(i);
m = subpath->getNumPoints();
writePSFmt("%g %g m\n", subpath->getX(0), subpath->getY(0));
j = 1;
while (j < m) {
if (subpath->getCurve(j)) {
writePSFmt("%g %g %g %g %g %g c\n", subpath->getX(j), subpath->getY(j),
subpath->getX(j+1), subpath->getY(j+1),
subpath->getX(j+2), subpath->getY(j+2));
j += 3;
} else {
writePSFmt("%g %g l\n", subpath->getX(j), subpath->getY(j));
++j;
}
}
if (subpath->isClosed()) {
writePS("h\n");
}
}
}
void PSOutputDev::drawString(GfxState *state, GooString *s) {
GfxFont *font;
int wMode;
GooString *s2;
double dx, dy, dx2, dy2, originX, originY;
char *p;
UnicodeMap *uMap;
CharCode code;
Unicode u[8];
char buf[8];
int len, nChars, uLen, n, m, i, j;
// check for invisible text -- this is used by Acrobat Capture
if (state->getRender() == 3) {
return;
}
// ignore empty strings
if (s->getLength() == 0) {
return;
}
// get the font
if (!(font = state->getFont())) {
return;
}
wMode = font->getWMode();
// check for a subtitute 16-bit font
uMap = NULL;
if (font->isCIDFont()) {
for (i = 0; i < font16EncLen; ++i) {
if (font->getID()->num == font16Enc[i].fontID.num &&
font->getID()->gen == font16Enc[i].fontID.gen) {
uMap = globalParams->getUnicodeMap(font16Enc[i].enc);
break;
}
}
}
// compute width of chars in string, ignoring char spacing and word
// spacing -- the Tj operator will adjust for the metrics of the
// font that's actually used
dx = dy = 0;
nChars = 0;
p = s->getCString();
len = s->getLength();
if (font->isCIDFont()) {
s2 = new GooString();
} else {
s2 = s;
}
while (len > 0) {
n = font->getNextChar(p, len, &code,
u, (int)(sizeof(u) / sizeof(Unicode)), &uLen,
&dx2, &dy2, &originX, &originY);
if (font->isCIDFont()) {
if (uMap) {
for (i = 0; i < uLen; ++i) {
m = uMap->mapUnicode(u[i], buf, (int)sizeof(buf));
for (j = 0; j < m; ++j) {
s2->append(buf[j]);
}
}
//~ this really needs to get the number of chars in the target
//~ encoding - which may be more than the number of Unicode
//~ chars
nChars += uLen;
} else {
s2->append((char)((code >> 8) & 0xff));
s2->append((char)(code & 0xff));
++nChars;
}
}
dx += dx2;
dy += dy2;
p += n;
len -= n;
}
dx *= state->getFontSize() * state->getHorizScaling();
dy *= state->getFontSize();
if (uMap) {
uMap->decRefCnt();
}
if (s2->getLength() > 0) {
writePSString(s2);
if (font->isCIDFont()) {
if (wMode) {
writePSFmt(" %d %g Tj16V\n", nChars, dy);
} else {
writePSFmt(" %d %g Tj16\n", nChars, dx);
}
} else {
writePSFmt(" %g Tj\n", dx);
}
}
if (font->isCIDFont()) {
delete s2;
}
if (state->getRender() & 4) {
haveTextClip = gTrue;
}
}
void PSOutputDev::endTextObject(GfxState *state) {
if (haveTextClip) {
writePS("Tclip\n");
haveTextClip = gFalse;
}
}
void PSOutputDev::drawImageMask(GfxState *state, Object *ref, Stream *str,
int width, int height, GBool invert,
GBool inlineImg) {
int len;
len = height * ((width + 7) / 8);
if (level == psLevel1 || level == psLevel1Sep) {
doImageL1(ref, NULL, invert, inlineImg, str, width, height, len);
} else {
doImageL2(ref, NULL, invert, inlineImg, str, width, height, len,
NULL, NULL, 0, 0, gFalse);
}
}
void PSOutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
int width, int height, GfxImageColorMap *colorMap,
int *maskColors, GBool inlineImg) {
int len;
len = height * ((width * colorMap->getNumPixelComps() *
colorMap->getBits() + 7) / 8);
switch (level) {
case psLevel1:
doImageL1(ref, colorMap, gFalse, inlineImg, str, width, height, len);
break;
case psLevel1Sep:
//~ handle indexed, separation, ... color spaces
doImageL1Sep(colorMap, gFalse, inlineImg, str, width, height, len);
break;
case psLevel2:
case psLevel2Sep:
case psLevel3:
case psLevel3Sep:
doImageL2(ref, colorMap, gFalse, inlineImg, str,
width, height, len, maskColors, NULL, 0, 0, gFalse);
break;
}
t3Cacheable = gFalse;
}
void PSOutputDev::drawMaskedImage(GfxState *state, Object *ref, Stream *str,
int width, int height,
GfxImageColorMap *colorMap,
Stream *maskStr,
int maskWidth, int maskHeight,
GBool maskInvert) {
int len;
len = height * ((width * colorMap->getNumPixelComps() *
colorMap->getBits() + 7) / 8);
switch (level) {
case psLevel1:
doImageL1(ref, colorMap, gFalse, gFalse, str, width, height, len);
break;
case psLevel1Sep:
//~ handle indexed, separation, ... color spaces
doImageL1Sep(colorMap, gFalse, gFalse, str, width, height, len);
break;
case psLevel2:
case psLevel2Sep:
case psLevel3:
case psLevel3Sep:
doImageL2(ref, colorMap, gFalse, gFalse, str, width, height, len,
NULL, maskStr, maskWidth, maskHeight, maskInvert);
break;
}
t3Cacheable = gFalse;
}
void PSOutputDev::doImageL1(Object *ref, GfxImageColorMap *colorMap,
GBool invert, GBool inlineImg,
Stream *str, int width, int height, int len) {
ImageStream *imgStr;
Guchar pixBuf[gfxColorMaxComps];
GfxGray gray;
int col, x, y, c, i;
if (inType3Char && !colorMap) {
if (inlineImg) {
// create an array
str = new FixedLengthEncoder(str, len);
str = new ASCIIHexEncoder(str);
str->reset();
col = 0;
writePS("[<");
do {
do {
c = str->getChar();
} while (c == '\n' || c == '\r');
if (c == '>' || c == EOF) {
break;
}
writePSChar(c);
++col;
// each line is: "<...data...><eol>"
// so max data length = 255 - 4 = 251
// but make it 240 just to be safe
// chunks are 2 bytes each, so we need to stop on an even col number
if (col == 240) {
writePS(">\n<");
col = 0;
}
} while (c != '>' && c != EOF);
writePS(">]\n");
writePS("0\n");
str->close();
delete str;
} else {
// set up to use the array already created by setupImages()
writePSFmt("ImData_%d_%d 0\n", ref->getRefNum(), ref->getRefGen());
}
}
// image/imagemask command
if (inType3Char && !colorMap) {
writePSFmt("%d %d %s [%d 0 0 %d 0 %d] pdfImM1a\n",
width, height, invert ? "true" : "false",
width, -height, height);
} else if (colorMap) {
writePSFmt("%d %d 8 [%d 0 0 %d 0 %d] pdfIm1\n",
width, height,
width, -height, height);
} else {
writePSFmt("%d %d %s [%d 0 0 %d 0 %d] pdfImM1\n",
width, height, invert ? "true" : "false",
width, -height, height);
}
// image data
if (!(inType3Char && !colorMap)) {
if (colorMap) {
// set up to process the data stream
imgStr = new ImageStream(str, width, colorMap->getNumPixelComps(),
colorMap->getBits());
imgStr->reset();
// process the data stream
i = 0;
for (y = 0; y < height; ++y) {
// write the line
for (x = 0; x < width; ++x) {
imgStr->getPixel(pixBuf);
colorMap->getGray(pixBuf, &gray);
writePSFmt("%02x", colToByte(gray));
if (++i == 32) {
writePSChar('\n');
i = 0;
}
}
}
if (i != 0) {
writePSChar('\n');
}
delete imgStr;
// imagemask
} else {
str->reset();
i = 0;
for (y = 0; y < height; ++y) {
for (x = 0; x < width; x += 8) {
writePSFmt("%02x", str->getChar() & 0xff);
if (++i == 32) {
writePSChar('\n');
i = 0;
}
}
}
if (i != 0) {
writePSChar('\n');
}
str->close();
}
}
}
void PSOutputDev::doImageL1Sep(GfxImageColorMap *colorMap,
GBool invert, GBool inlineImg,
Stream *str, int width, int height, int len) {
ImageStream *imgStr;
Guchar *lineBuf;
Guchar pixBuf[gfxColorMaxComps];
GfxCMYK cmyk;
int x, y, i, comp;
// width, height, matrix, bits per component
writePSFmt("%d %d 8 [%d 0 0 %d 0 %d] pdfIm1Sep\n",
width, height,
width, -height, height);
// allocate a line buffer
lineBuf = (Guchar *)gmalloc(4 * width);
// set up to process the data stream
imgStr = new ImageStream(str, width, colorMap->getNumPixelComps(),
colorMap->getBits());
imgStr->reset();
// process the data stream
i = 0;
for (y = 0; y < height; ++y) {
// read the line
for (x = 0; x < width; ++x) {
imgStr->getPixel(pixBuf);
colorMap->getCMYK(pixBuf, &cmyk);
lineBuf[4*x+0] = colToByte(cmyk.c);
lineBuf[4*x+1] = colToByte(cmyk.m);
lineBuf[4*x+2] = colToByte(cmyk.y);
lineBuf[4*x+3] = colToByte(cmyk.k);
addProcessColor(colToDbl(cmyk.c), colToDbl(cmyk.m),
colToDbl(cmyk.y), colToDbl(cmyk.k));
}
// write one line of each color component
for (comp = 0; comp < 4; ++comp) {
for (x = 0; x < width; ++x) {
writePSFmt("%02x", lineBuf[4*x + comp]);
if (++i == 32) {
writePSChar('\n');
i = 0;
}
}
}
}
if (i != 0) {
writePSChar('\n');
}
delete imgStr;
gfree(lineBuf);
}
void PSOutputDev::doImageL2(Object *ref, GfxImageColorMap *colorMap,
GBool invert, GBool inlineImg,
Stream *str, int width, int height, int len,
int *maskColors, Stream *maskStr,
int maskWidth, int maskHeight, GBool maskInvert) {
ImageStream *imgStr;
Guchar *line, *pix;
GooString *s;
int n, numComps;
GBool useRLE, useASCII, useASCIIHex, useCompressed;
GfxSeparationColorSpace *sepCS;
GfxColor color;
GfxCMYK cmyk;
int c;
int col, i, x, x0, y, y0, maskXor;
// color key masking
if (maskColors && colorMap && !inlineImg) {
// can't read the stream twice for inline images -- but masking
// isn't allowed with inline images anyway
writePS("[\n");
numComps = colorMap->getNumPixelComps();
imgStr = new ImageStream(str, width, numComps, colorMap->getBits());
imgStr->reset();
for (y = 0, y0 = 0; y < height; ++y) {
if (!(line = imgStr->getLine())) {
break;
}
for (x = 0, x0 = 0, pix = line; x < width; ++x, pix += numComps) {
for (i = 0; i < numComps; ++i) {
if (pix[i] < maskColors[2*i] ||
pix[i] > maskColors[2*i+1]) {
break;
}
}
if (i == numComps) {
if (y0 < y) {
writePSFmt("0 %d %d %d\n", height - y, width, y - y0);
}
if (x0 < x) {
writePSFmt("%d %d %d 1\n", x0, height - y - 1, x - x0);
}
x0 = x + 1;
y0 = y + 1;
}
}
if (x0 > 0 && x0 < width) {
writePSFmt("%d %d %d 1\n", x0, height - y - 1, width - x0);
}
}
if (y0 < height) {
writePSFmt("0 0 %d %d\n", width, height - y0);
}
delete imgStr;
str->close();
writePSFmt("] %d %d pdfImClip\n", width, height);
// explicit masking
} else if (maskStr) {
writePS("[\n");
imgStr = new ImageStream(maskStr, maskWidth, 1, 1);
imgStr->reset();
maskXor = maskInvert ? 1 : 0;
for (y = 0, y0 = 0; y < maskHeight; ++y) {
if (!(line = imgStr->getLine())) {
break;
}
for (x = 0, x0 = 0, pix = line; x < maskWidth; ++x, ++pix) {
if (*pix ^ maskXor) {
if (y0 < y) {
writePSFmt("0 %d %d %d\n", maskHeight - y, maskWidth, y - y0);
}
if (x0 < x) {
writePSFmt("%d %d %d 1\n", x0, maskHeight - y - 1, x - x0);
}
x0 = x + 1;
y0 = y + 1;
}
}
if (x0 > 0 && x0 < maskWidth) {
writePSFmt("%d %d %d 1\n", x0, maskHeight - y - 1, maskWidth - x0);
}
}
if (y0 < maskHeight) {
writePSFmt("0 0 %d %d\n", maskWidth, maskHeight - y0);
}
delete imgStr;
maskStr->close();
writePSFmt("] %d %d pdfImClip\n", maskWidth, maskHeight);
}
// color space
if (colorMap) {
dumpColorSpaceL2(colorMap->getColorSpace(), gFalse, gTrue);
writePS(" setcolorspace\n");
}
useASCIIHex = globalParams->getPSASCIIHex();
// set up the image data
if (mode == psModeForm || inType3Char) {
if (inlineImg) {
// create an array
str = new FixedLengthEncoder(str, len);
if (useASCIIHex) {
str = new ASCIIHexEncoder(str);
} else {
str = new ASCII85Encoder(str);
}
str->reset();
col = 0;
writePS((char *)(useASCIIHex ? "[<" : "[<~"));
do {
do {
c = str->getChar();
} while (c == '\n' || c == '\r');
if (c == (useASCIIHex ? '>' : '~') || c == EOF) {
break;
}
if (c == 'z') {
writePSChar(c);
++col;
} else {
writePSChar(c);
++col;
for (i = 1; i <= (useASCIIHex ? 1 : 4); ++i) {
do {
c = str->getChar();
} while (c == '\n' || c == '\r');
if (c == (useASCIIHex ? '>' : '~') || c == EOF) {
break;
}
writePSChar(c);
++col;
}
}
// each line is: "<~...data...~><eol>"
// so max data length = 255 - 6 = 249
// chunks are 1 or 5 bytes each, so we have to stop at 245
// but make it 240 just to be safe
if (col > 240) {
writePS((char *)(useASCIIHex ? ">\n<" : "~>\n<~"));
col = 0;
}
} while (c != (useASCIIHex ? '>' : '~') && c != EOF);
writePS((char *)(useASCIIHex ? ">]\n" : "~>]\n"));
writePS("0\n");
str->close();
delete str;
} else {
// set up to use the array already created by setupImages()
writePSFmt("ImData_%d_%d 0\n", ref->getRefNum(), ref->getRefGen());
}
}
// image dictionary
writePS("<<\n /ImageType 1\n");
// width, height, matrix, bits per component
writePSFmt(" /Width %d\n", width);
writePSFmt(" /Height %d\n", height);
writePSFmt(" /ImageMatrix [%d 0 0 %d 0 %d]\n", width, -height, height);
if (colorMap && colorMap->getColorSpace()->getMode() == csDeviceN) {
writePSFmt(" /BitsPerComponent 8\n");
} else {
writePSFmt(" /BitsPerComponent %d\n",
colorMap ? colorMap->getBits() : 1);
}
// decode
if (colorMap) {
writePS(" /Decode [");
if ((level == psLevel2Sep || level == psLevel3Sep) &&
colorMap->getColorSpace()->getMode() == csSeparation) {
// this matches up with the code in the pdfImSep operator
n = (1 << colorMap->getBits()) - 1;
writePSFmt("%g %g", colorMap->getDecodeLow(0) * n,
colorMap->getDecodeHigh(0) * n);
} else if (colorMap->getColorSpace()->getMode() == csDeviceN) {
numComps = ((GfxDeviceNColorSpace *)colorMap->getColorSpace())->
getAlt()->getNComps();
for (i = 0; i < numComps; ++i) {
if (i > 0) {
writePS(" ");
}
writePS("0 1");
}
} else {
numComps = colorMap->getNumPixelComps();
for (i = 0; i < numComps; ++i) {
if (i > 0) {
writePS(" ");
}
writePSFmt("%g %g", colorMap->getDecodeLow(i),
colorMap->getDecodeHigh(i));
}
}
writePS("]\n");
} else {
writePSFmt(" /Decode [%d %d]\n", invert ? 1 : 0, invert ? 0 : 1);
}
if (mode == psModeForm || inType3Char) {
// data source
writePS(" /DataSource { 2 copy get exch 1 add exch }\n");
// end of image dictionary
writePSFmt(">>\n%s\n", colorMap ? "image" : "imagemask");
// get rid of the array and index
writePS("pop pop\n");
} else {
// data source
writePS(" /DataSource currentfile\n");
s = str->getPSFilter(level < psLevel2 ? 1 : level < psLevel3 ? 2 : 3,
" ");
if ((colorMap && colorMap->getColorSpace()->getMode() == csDeviceN) ||
inlineImg || !s) {
useRLE = gTrue;
useASCII = gTrue;
useCompressed = gFalse;
} else {
useRLE = gFalse;
useASCII = str->isBinary();
useCompressed = gTrue;
}
if (useASCII) {
writePSFmt(" /ASCII%sDecode filter\n",
useASCIIHex ? "Hex" : "85");
}
if (useRLE) {
writePS(" /RunLengthDecode filter\n");
}
if (useCompressed) {
writePS(s->getCString());
}
if (s) {
delete s;
}
// cut off inline image streams at appropriate length
if (inlineImg) {
str = new FixedLengthEncoder(str, len);
} else if (useCompressed) {
str = str->getBaseStream();
}
// recode DeviceN data
if (colorMap && colorMap->getColorSpace()->getMode() == csDeviceN) {
str = new DeviceNRecoder(str, width, height, colorMap);
}
// add RunLengthEncode and ASCIIHex/85 encode filters
if (useRLE) {
str = new RunLengthEncoder(str);
}
if (useASCII) {
if (useASCIIHex) {
str = new ASCIIHexEncoder(str);
} else {
str = new ASCII85Encoder(str);
}
}
// end of image dictionary
writePS(">>\n");
#if OPI_SUPPORT
if (opi13Nest) {
if (inlineImg) {
// this can't happen -- OPI dictionaries are in XObjects
error(-1, "Internal: OPI in inline image");
n = 0;
} else {
// need to read the stream to count characters -- the length
// is data-dependent (because of ASCII and RLE filters)
str->reset();
n = 0;
while ((c = str->getChar()) != EOF) {
++n;
}
str->close();
}
// +6/7 for "pdfIm\n" / "pdfImM\n"
// +8 for newline + trailer
n += colorMap ? 14 : 15;
writePSFmt("%%%%BeginData: %d Hex Bytes\n", n);
}
#endif
if ((level == psLevel2Sep || level == psLevel3Sep) && colorMap &&
colorMap->getColorSpace()->getMode() == csSeparation) {
color.c[0] = gfxColorComp1;
sepCS = (GfxSeparationColorSpace *)colorMap->getColorSpace();
sepCS->getCMYK(&color, &cmyk);
writePSFmt("%g %g %g %g (%s) pdfImSep\n",
colToDbl(cmyk.c), colToDbl(cmyk.m),
colToDbl(cmyk.y), colToDbl(cmyk.k),
sepCS->getName()->getCString());
} else {
writePSFmt("%s\n", colorMap ? "pdfIm" : "pdfImM");
}
// copy the stream data
str->reset();
while ((c = str->getChar()) != EOF) {
writePSChar(c);
}
str->close();
// add newline and trailer to the end
writePSChar('\n');
writePS("%-EOD-\n");
#if OPI_SUPPORT
if (opi13Nest) {
writePS("%%EndData\n");
}
#endif
// delete encoders
if (useRLE || useASCII || inlineImg) {
delete str;
}
}
if ((maskColors && colorMap && !inlineImg) || maskStr) {
writePS("pdfImClipEnd\n");
}
}
void PSOutputDev::dumpColorSpaceL2(GfxColorSpace *colorSpace,
GBool genXform, GBool updateColors) {
GfxCalGrayColorSpace *calGrayCS;
GfxCalRGBColorSpace *calRGBCS;
GfxLabColorSpace *labCS;
GfxIndexedColorSpace *indexedCS;
GfxSeparationColorSpace *separationCS;
GfxDeviceNColorSpace *deviceNCS;
GfxColorSpace *baseCS;
Guchar *lookup, *p;
double x[gfxColorMaxComps], y[gfxColorMaxComps];
GfxColor color;
GfxCMYK cmyk;
Function *func;
int n, numComps, numAltComps;
int byte;
int i, j, k;
switch (colorSpace->getMode()) {
case csDeviceGray:
writePS("/DeviceGray");
if (genXform) {
writePS(" {}");
}
if (updateColors) {
processColors |= psProcessBlack;
}
break;
case csCalGray:
calGrayCS = (GfxCalGrayColorSpace *)colorSpace;
writePS("[/CIEBasedA <<\n");
writePSFmt(" /DecodeA {%g exp} bind\n", calGrayCS->getGamma());
writePSFmt(" /MatrixA [%g %g %g]\n",
calGrayCS->getWhiteX(), calGrayCS->getWhiteY(),
calGrayCS->getWhiteZ());
writePSFmt(" /WhitePoint [%g %g %g]\n",
calGrayCS->getWhiteX(), calGrayCS->getWhiteY(),
calGrayCS->getWhiteZ());
writePSFmt(" /BlackPoint [%g %g %g]\n",
calGrayCS->getBlackX(), calGrayCS->getBlackY(),
calGrayCS->getBlackZ());
writePS(">>]");
if (genXform) {
writePS(" {}");
}
if (updateColors) {
processColors |= psProcessBlack;
}
break;
case csDeviceRGB:
writePS("/DeviceRGB");
if (genXform) {
writePS(" {}");
}
if (updateColors) {
processColors |= psProcessCMYK;
}
break;
case csCalRGB:
calRGBCS = (GfxCalRGBColorSpace *)colorSpace;
writePS("[/CIEBasedABC <<\n");
writePSFmt(" /DecodeABC [{%g exp} bind {%g exp} bind {%g exp} bind]\n",
calRGBCS->getGammaR(), calRGBCS->getGammaG(),
calRGBCS->getGammaB());
writePSFmt(" /MatrixABC [%g %g %g %g %g %g %g %g %g]\n",
calRGBCS->getMatrix()[0], calRGBCS->getMatrix()[1],
calRGBCS->getMatrix()[2], calRGBCS->getMatrix()[3],
calRGBCS->getMatrix()[4], calRGBCS->getMatrix()[5],
calRGBCS->getMatrix()[6], calRGBCS->getMatrix()[7],
calRGBCS->getMatrix()[8]);
writePSFmt(" /WhitePoint [%g %g %g]\n",
calRGBCS->getWhiteX(), calRGBCS->getWhiteY(),
calRGBCS->getWhiteZ());
writePSFmt(" /BlackPoint [%g %g %g]\n",
calRGBCS->getBlackX(), calRGBCS->getBlackY(),
calRGBCS->getBlackZ());
writePS(">>]");
if (genXform) {
writePS(" {}");
}
if (updateColors) {
processColors |= psProcessCMYK;
}
break;
case csDeviceCMYK:
writePS("/DeviceCMYK");
if (genXform) {
writePS(" {}");
}
if (updateColors) {
processColors |= psProcessCMYK;
}
break;
case csLab:
labCS = (GfxLabColorSpace *)colorSpace;
writePS("[/CIEBasedABC <<\n");
writePSFmt(" /RangeABC [0 100 %g %g %g %g]\n",
labCS->getAMin(), labCS->getAMax(),
labCS->getBMin(), labCS->getBMax());
writePS(" /DecodeABC [{16 add 116 div} bind {500 div} bind {200 div} bind]\n");
writePS(" /MatrixABC [1 1 1 1 0 0 0 0 -1]\n");
writePS(" /DecodeLMN\n");
writePS(" [{dup 6 29 div ge {dup dup mul mul}\n");
writePSFmt(" {4 29 div sub 108 841 div mul } ifelse %g mul} bind\n",
labCS->getWhiteX());
writePS(" {dup 6 29 div ge {dup dup mul mul}\n");
writePSFmt(" {4 29 div sub 108 841 div mul } ifelse %g mul} bind\n",
labCS->getWhiteY());
writePS(" {dup 6 29 div ge {dup dup mul mul}\n");
writePSFmt(" {4 29 div sub 108 841 div mul } ifelse %g mul} bind]\n",
labCS->getWhiteZ());
writePSFmt(" /WhitePoint [%g %g %g]\n",
labCS->getWhiteX(), labCS->getWhiteY(), labCS->getWhiteZ());
writePSFmt(" /BlackPoint [%g %g %g]\n",
labCS->getBlackX(), labCS->getBlackY(), labCS->getBlackZ());
writePS(">>]");
if (genXform) {
writePS(" {}");
}
if (updateColors) {
processColors |= psProcessCMYK;
}
break;
case csICCBased:
// there is no transform function to the alternate color space, so
// we can use it directly
dumpColorSpaceL2(((GfxICCBasedColorSpace *)colorSpace)->getAlt(),
genXform, updateColors);
break;
case csIndexed:
indexedCS = (GfxIndexedColorSpace *)colorSpace;
baseCS = indexedCS->getBase();
writePS("[/Indexed ");
dumpColorSpaceL2(baseCS, gFalse, gFalse);
n = indexedCS->getIndexHigh();
numComps = baseCS->getNComps();
lookup = indexedCS->getLookup();
writePSFmt(" %d <\n", n);
if (baseCS->getMode() == csDeviceN) {
func = ((GfxDeviceNColorSpace *)baseCS)->getTintTransformFunc();
numAltComps = ((GfxDeviceNColorSpace *)baseCS)->getAlt()->getNComps();
p = lookup;
for (i = 0; i <= n; i += 8) {
writePS(" ");
for (j = i; j < i+8 && j <= n; ++j) {
for (k = 0; k < numComps; ++k) {
x[k] = *p++ / 255.0;
}
func->transform(x, y);
for (k = 0; k < numAltComps; ++k) {
byte = (int)(y[k] * 255 + 0.5);
if (byte < 0) {
byte = 0;
} else if (byte > 255) {
byte = 255;
}
writePSFmt("%02x", byte);
}
if (updateColors) {
color.c[0] = dblToCol(j);
indexedCS->getCMYK(&color, &cmyk);
addProcessColor(colToDbl(cmyk.c), colToDbl(cmyk.m),
colToDbl(cmyk.y), colToDbl(cmyk.k));
}
}
writePS("\n");
}
} else {
for (i = 0; i <= n; i += 8) {
writePS(" ");
for (j = i; j < i+8 && j <= n; ++j) {
for (k = 0; k < numComps; ++k) {
writePSFmt("%02x", lookup[j * numComps + k]);
}
if (updateColors) {
color.c[0] = dblToCol(j);
indexedCS->getCMYK(&color, &cmyk);
addProcessColor(colToDbl(cmyk.c), colToDbl(cmyk.m),
colToDbl(cmyk.y), colToDbl(cmyk.k));
}
}
writePS("\n");
}
}
writePS(">]");
if (genXform) {
writePS(" {}");
}
break;
case csSeparation:
separationCS = (GfxSeparationColorSpace *)colorSpace;
writePS("[/Separation /");
writePSName(separationCS->getName()->getCString());
writePS(" ");
dumpColorSpaceL2(separationCS->getAlt(), gFalse, gFalse);
writePS("\n");
cvtFunction(separationCS->getFunc());
writePS("]");
if (genXform) {
writePS(" {}");
}
if (updateColors) {
addCustomColor(separationCS);
}
break;
case csDeviceN:
// DeviceN color spaces are a Level 3 PostScript feature.
deviceNCS = (GfxDeviceNColorSpace *)colorSpace;
dumpColorSpaceL2(deviceNCS->getAlt(), gFalse, updateColors);
if (genXform) {
writePS(" ");
cvtFunction(deviceNCS->getTintTransformFunc());
}
break;
case csPattern:
//~ unimplemented
break;
}
}
#if OPI_SUPPORT
void PSOutputDev::opiBegin(GfxState *state, Dict *opiDict) {
Object dict;
if (globalParams->getPSOPI()) {
opiDict->lookup("2.0", &dict);
if (dict.isDict()) {
opiBegin20(state, dict.getDict());
dict.free();
} else {
dict.free();
opiDict->lookup("1.3", &dict);
if (dict.isDict()) {
opiBegin13(state, dict.getDict());
}
dict.free();
}
}
}
void PSOutputDev::opiBegin20(GfxState *state, Dict *dict) {
Object obj1, obj2, obj3, obj4;
double width, height, left, right, top, bottom;
int w, h;
int i;
writePS("%%BeginOPI: 2.0\n");
writePS("%%Distilled\n");
dict->lookup("F", &obj1);
if (getFileSpec(&obj1, &obj2)) {
writePSFmt("%%%%ImageFileName: %s\n",
obj2.getString()->getCString());
obj2.free();
}
obj1.free();
dict->lookup("MainImage", &obj1);
if (obj1.isString()) {
writePSFmt("%%%%MainImage: %s\n", obj1.getString()->getCString());
}
obj1.free();
//~ ignoring 'Tags' entry
//~ need to use writePSString() and deal with >255-char lines
dict->lookup("Size", &obj1);
if (obj1.isArray() && obj1.arrayGetLength() == 2) {
obj1.arrayGet(0, &obj2);
width = obj2.getNum();
obj2.free();
obj1.arrayGet(1, &obj2);
height = obj2.getNum();
obj2.free();
writePSFmt("%%%%ImageDimensions: %g %g\n", width, height);
}
obj1.free();
dict->lookup("CropRect", &obj1);
if (obj1.isArray() && obj1.arrayGetLength() == 4) {
obj1.arrayGet(0, &obj2);
left = obj2.getNum();
obj2.free();
obj1.arrayGet(1, &obj2);
top = obj2.getNum();
obj2.free();
obj1.arrayGet(2, &obj2);
right = obj2.getNum();
obj2.free();
obj1.arrayGet(3, &obj2);
bottom = obj2.getNum();
obj2.free();
writePSFmt("%%%%ImageCropRect: %g %g %g %g\n", left, top, right, bottom);
}
obj1.free();
dict->lookup("Overprint", &obj1);
if (obj1.isBool()) {
writePSFmt("%%%%ImageOverprint: %s\n", obj1.getBool() ? "true" : "false");
}
obj1.free();
dict->lookup("Inks", &obj1);
if (obj1.isName()) {
writePSFmt("%%%%ImageInks: %s\n", obj1.getName());
} else if (obj1.isArray() && obj1.arrayGetLength() >= 1) {
obj1.arrayGet(0, &obj2);
if (obj2.isName()) {
writePSFmt("%%%%ImageInks: %s %d",
obj2.getName(), (obj1.arrayGetLength() - 1) / 2);
for (i = 1; i+1 < obj1.arrayGetLength(); i += 2) {
obj1.arrayGet(i, &obj3);
obj1.arrayGet(i+1, &obj4);
if (obj3.isString() && obj4.isNum()) {
writePS(" ");
writePSString(obj3.getString());
writePSFmt(" %g", obj4.getNum());
}
obj3.free();
obj4.free();
}
writePS("\n");
}
obj2.free();
}
obj1.free();
writePS("gsave\n");
writePS("%%BeginIncludedImage\n");
dict->lookup("IncludedImageDimensions", &obj1);
if (obj1.isArray() && obj1.arrayGetLength() == 2) {
obj1.arrayGet(0, &obj2);
w = obj2.getInt();
obj2.free();
obj1.arrayGet(1, &obj2);
h = obj2.getInt();
obj2.free();
writePSFmt("%%%%IncludedImageDimensions: %d %d\n", w, h);
}
obj1.free();
dict->lookup("IncludedImageQuality", &obj1);
if (obj1.isNum()) {
writePSFmt("%%%%IncludedImageQuality: %g\n", obj1.getNum());
}
obj1.free();
++opi20Nest;
}
void PSOutputDev::opiBegin13(GfxState *state, Dict *dict) {
Object obj1, obj2;
int left, right, top, bottom, samples, bits, width, height;
double c, m, y, k;
double llx, lly, ulx, uly, urx, ury, lrx, lry;
double tllx, tlly, tulx, tuly, turx, tury, tlrx, tlry;
double horiz, vert;
int i, j;
writePS("save\n");
writePS("/opiMatrix2 matrix currentmatrix def\n");
writePS("opiMatrix setmatrix\n");
dict->lookup("F", &obj1);
if (getFileSpec(&obj1, &obj2)) {
writePSFmt("%%ALDImageFileName: %s\n",
obj2.getString()->getCString());
obj2.free();
}
obj1.free();
dict->lookup("CropRect", &obj1);
if (obj1.isArray() && obj1.arrayGetLength() == 4) {
obj1.arrayGet(0, &obj2);
left = obj2.getInt();
obj2.free();
obj1.arrayGet(1, &obj2);
top = obj2.getInt();
obj2.free();
obj1.arrayGet(2, &obj2);
right = obj2.getInt();
obj2.free();
obj1.arrayGet(3, &obj2);
bottom = obj2.getInt();
obj2.free();
writePSFmt("%%ALDImageCropRect: %d %d %d %d\n", left, top, right, bottom);
}
obj1.free();
dict->lookup("Color", &obj1);
if (obj1.isArray() && obj1.arrayGetLength() == 5) {
obj1.arrayGet(0, &obj2);
c = obj2.getNum();
obj2.free();
obj1.arrayGet(1, &obj2);
m = obj2.getNum();
obj2.free();
obj1.arrayGet(2, &obj2);
y = obj2.getNum();
obj2.free();
obj1.arrayGet(3, &obj2);
k = obj2.getNum();
obj2.free();
obj1.arrayGet(4, &obj2);
if (obj2.isString()) {
writePSFmt("%%ALDImageColor: %g %g %g %g ", c, m, y, k);
writePSString(obj2.getString());
writePS("\n");
}
obj2.free();
}
obj1.free();
dict->lookup("ColorType", &obj1);
if (obj1.isName()) {
writePSFmt("%%ALDImageColorType: %s\n", obj1.getName());
}
obj1.free();
//~ ignores 'Comments' entry
//~ need to handle multiple lines
dict->lookup("CropFixed", &obj1);
if (obj1.isArray()) {
obj1.arrayGet(0, &obj2);
ulx = obj2.getNum();
obj2.free();
obj1.arrayGet(1, &obj2);
uly = obj2.getNum();
obj2.free();
obj1.arrayGet(2, &obj2);
lrx = obj2.getNum();
obj2.free();
obj1.arrayGet(3, &obj2);
lry = obj2.getNum();
obj2.free();
writePSFmt("%%ALDImageCropFixed: %g %g %g %g\n", ulx, uly, lrx, lry);
}
obj1.free();
dict->lookup("GrayMap", &obj1);
if (obj1.isArray()) {
writePS("%ALDImageGrayMap:");
for (i = 0; i < obj1.arrayGetLength(); i += 16) {
if (i > 0) {
writePS("\n%%+");
}
for (j = 0; j < 16 && i+j < obj1.arrayGetLength(); ++j) {
obj1.arrayGet(i+j, &obj2);
writePSFmt(" %d", obj2.getInt());
obj2.free();
}
}
writePS("\n");
}
obj1.free();
dict->lookup("ID", &obj1);
if (obj1.isString()) {
writePSFmt("%%ALDImageID: %s\n", obj1.getString()->getCString());
}
obj1.free();
dict->lookup("ImageType", &obj1);
if (obj1.isArray() && obj1.arrayGetLength() == 2) {
obj1.arrayGet(0, &obj2);
samples = obj2.getInt();
obj2.free();
obj1.arrayGet(1, &obj2);
bits = obj2.getInt();
obj2.free();
writePSFmt("%%ALDImageType: %d %d\n", samples, bits);
}
obj1.free();
dict->lookup("Overprint", &obj1);
if (obj1.isBool()) {
writePSFmt("%%ALDImageOverprint: %s\n", obj1.getBool() ? "true" : "false");
}
obj1.free();
dict->lookup("Position", &obj1);
if (obj1.isArray() && obj1.arrayGetLength() == 8) {
obj1.arrayGet(0, &obj2);
llx = obj2.getNum();
obj2.free();
obj1.arrayGet(1, &obj2);
lly = obj2.getNum();
obj2.free();
obj1.arrayGet(2, &obj2);
ulx = obj2.getNum();
obj2.free();
obj1.arrayGet(3, &obj2);
uly = obj2.getNum();
obj2.free();
obj1.arrayGet(4, &obj2);
urx = obj2.getNum();
obj2.free();
obj1.arrayGet(5, &obj2);
ury = obj2.getNum();
obj2.free();
obj1.arrayGet(6, &obj2);
lrx = obj2.getNum();
obj2.free();
obj1.arrayGet(7, &obj2);
lry = obj2.getNum();
obj2.free();
opiTransform(state, llx, lly, &tllx, &tlly);
opiTransform(state, ulx, uly, &tulx, &tuly);
opiTransform(state, urx, ury, &turx, &tury);
opiTransform(state, lrx, lry, &tlrx, &tlry);
writePSFmt("%%ALDImagePosition: %g %g %g %g %g %g %g %g\n",
tllx, tlly, tulx, tuly, turx, tury, tlrx, tlry);
obj2.free();
}
obj1.free();
dict->lookup("Resolution", &obj1);
if (obj1.isArray() && obj1.arrayGetLength() == 2) {
obj1.arrayGet(0, &obj2);
horiz = obj2.getNum();
obj2.free();
obj1.arrayGet(1, &obj2);
vert = obj2.getNum();
obj2.free();
writePSFmt("%%ALDImageResoution: %g %g\n", horiz, vert);
obj2.free();
}
obj1.free();
dict->lookup("Size", &obj1);
if (obj1.isArray() && obj1.arrayGetLength() == 2) {
obj1.arrayGet(0, &obj2);
width = obj2.getInt();
obj2.free();
obj1.arrayGet(1, &obj2);
height = obj2.getInt();
obj2.free();
writePSFmt("%%ALDImageDimensions: %d %d\n", width, height);
}
obj1.free();
//~ ignoring 'Tags' entry
//~ need to use writePSString() and deal with >255-char lines
dict->lookup("Tint", &obj1);
if (obj1.isNum()) {
writePSFmt("%%ALDImageTint: %g\n", obj1.getNum());
}
obj1.free();
dict->lookup("Transparency", &obj1);
if (obj1.isBool()) {
writePSFmt("%%ALDImageTransparency: %s\n", obj1.getBool() ? "true" : "false");
}
obj1.free();
writePS("%%BeginObject: image\n");
writePS("opiMatrix2 setmatrix\n");
++opi13Nest;
}
// Convert PDF user space coordinates to PostScript default user space
// coordinates. This has to account for both the PDF CTM and the
// PSOutputDev page-fitting transform.
void PSOutputDev::opiTransform(GfxState *state, double x0, double y0,
double *x1, double *y1) {
double t;
state->transform(x0, y0, x1, y1);
*x1 += tx;
*y1 += ty;
if (rotate == 90) {
t = *x1;
*x1 = -*y1;
*y1 = t;
} else if (rotate == 180) {
*x1 = -*x1;
*y1 = -*y1;
} else if (rotate == 270) {
t = *x1;
*x1 = *y1;
*y1 = -t;
}
*x1 *= xScale;
*y1 *= yScale;
}
void PSOutputDev::opiEnd(GfxState *state, Dict *opiDict) {
Object dict;
if (globalParams->getPSOPI()) {
opiDict->lookup("2.0", &dict);
if (dict.isDict()) {
writePS("%%EndIncludedImage\n");
writePS("%%EndOPI\n");
writePS("grestore\n");
--opi20Nest;
dict.free();
} else {
dict.free();
opiDict->lookup("1.3", &dict);
if (dict.isDict()) {
writePS("%%EndObject\n");
writePS("restore\n");
--opi13Nest;
}
dict.free();
}
}
}
GBool PSOutputDev::getFileSpec(Object *fileSpec, Object *fileName) {
if (fileSpec->isString()) {
fileSpec->copy(fileName);
return gTrue;
}
if (fileSpec->isDict()) {
fileSpec->dictLookup("DOS", fileName);
if (fileName->isString()) {
return gTrue;
}
fileName->free();
fileSpec->dictLookup("Mac", fileName);
if (fileName->isString()) {
return gTrue;
}
fileName->free();
fileSpec->dictLookup("Unix", fileName);
if (fileName->isString()) {
return gTrue;
}
fileName->free();
fileSpec->dictLookup("F", fileName);
if (fileName->isString()) {
return gTrue;
}
fileName->free();
}
return gFalse;
}
#endif // OPI_SUPPORT
void PSOutputDev::type3D0(GfxState *state, double wx, double wy) {
writePSFmt("%g %g setcharwidth\n", wx, wy);
writePS("q\n");
}
void PSOutputDev::type3D1(GfxState *state, double wx, double wy,
double llx, double lly, double urx, double ury) {
t3WX = wx;
t3WY = wy;
t3LLX = llx;
t3LLY = lly;
t3URX = urx;
t3URY = ury;
t3String = new GooString();
writePS("q\n");
t3Cacheable = gTrue;
}
void PSOutputDev::psXObject(Stream *psStream, Stream *level1Stream) {
Stream *str;
int c;
if ((level == psLevel1 || level == psLevel1Sep) && level1Stream) {
str = level1Stream;
} else {
str = psStream;
}
str->reset();
while ((c = str->getChar()) != EOF) {
writePSChar(c);
}
str->close();
}
//~ can nextFunc be reset to 0 -- maybe at the start of each page?
//~ or maybe at the start of each color space / pattern?
void PSOutputDev::cvtFunction(Function *func) {
SampledFunction *func0;
ExponentialFunction *func2;
StitchingFunction *func3;
PostScriptFunction *func4;
int thisFunc, m, n, nSamples, i, j, k;
switch (func->getType()) {
case -1: // identity
writePS("{}\n");
break;
case 0: // sampled
func0 = (SampledFunction *)func;
thisFunc = nextFunc++;
m = func0->getInputSize();
n = func0->getOutputSize();
nSamples = n;
for (i = 0; i < m; ++i) {
nSamples *= func0->getSampleSize(i);
}
writePSFmt("/xpdfSamples%d [\n", thisFunc);
for (i = 0; i < nSamples; ++i) {
writePSFmt("%g\n", func0->getSamples()[i]);
}
writePS("] def\n");
writePSFmt("{ %d array %d array %d 2 roll\n", 2*m, m, m+2);
// [e01] [efrac] x0 x1 ... xm-1
for (i = m-1; i >= 0; --i) {
// [e01] [efrac] x0 x1 ... xi
writePSFmt("%g sub %g mul %g add\n",
func0->getDomainMin(i),
(func0->getEncodeMax(i) - func0->getEncodeMin(i)) /
(func0->getDomainMax(i) - func0->getDomainMin(i)),
func0->getEncodeMin(i));
// [e01] [efrac] x0 x1 ... xi-1 xi'
writePSFmt("dup 0 lt { pop 0 } { dup %d gt { pop %d } if } ifelse\n",
func0->getSampleSize(i) - 1, func0->getSampleSize(i) - 1);
// [e01] [efrac] x0 x1 ... xi-1 xi'
writePS("dup floor cvi exch dup ceiling cvi exch 2 index sub\n");
// [e01] [efrac] x0 x1 ... xi-1 floor(xi') ceiling(xi') xi'-floor(xi')
writePSFmt("%d index %d 3 2 roll put\n", i+3, i);
// [e01] [efrac] x0 x1 ... xi-1 floor(xi') ceiling(xi')
writePSFmt("%d index %d 3 2 roll put\n", i+3, 2*i+1);
// [e01] [efrac] x0 x1 ... xi-1 floor(xi')
writePSFmt("%d index %d 3 2 roll put\n", i+2, 2*i);
// [e01] [efrac] x0 x1 ... xi-1
}
// [e01] [efrac]
for (i = 0; i < n; ++i) {
// [e01] [efrac] y(0) ... y(i-1)
for (j = 0; j < (1<<m); ++j) {
// [e01] [efrac] y(0) ... y(i-1) s(0) s(1) ... s(j-1)
writePSFmt("xpdfSamples%d\n", thisFunc);
k = m - 1;
writePSFmt("%d index %d get\n", i+j+2, 2 * k + ((j >> k) & 1));
for (k = m - 2; k >= 0; --k) {
writePSFmt("%d mul %d index %d get add\n",
func0->getSampleSize(k),
i + j + 3,
2 * k + ((j >> k) & 1));
}
if (n > 1) {
writePSFmt("%d mul %d add ", n, i);
}
writePS("get\n");
}
// [e01] [efrac] y(0) ... y(i-1) s(0) s(1) ... s(2^m-1)
for (j = 0; j < m; ++j) {
// [e01] [efrac] y(0) ... y(i-1) s(0) s(1) ... s(2^(m-j)-1)
for (k = 0; k < (1 << (m - j)); k += 2) {
// [e01] [efrac] y(0) ... y(i-1) <k/2 s' values> <2^(m-j)-k s values>
writePSFmt("%d index %d get dup\n", i + k/2 + (1 << (m-j)) - k, j);
writePS("3 2 roll mul exch 1 exch sub 3 2 roll mul add\n");
writePSFmt("%d 1 roll\n", k/2 + (1 << m-j) - k - 1);
}
// [e01] [efrac] s'(0) s'(1) ... s(2^(m-j-1)-1)
}
// [e01] [efrac] y(0) ... y(i-1) s
writePSFmt("%g mul %g add\n",
func0->getDecodeMax(i) - func0->getDecodeMin(i),
func0->getDecodeMin(i));
writePSFmt("dup %g lt { pop %g } { dup %g gt { pop %g } if } ifelse\n",
func0->getRangeMin(i), func0->getRangeMin(i),
func0->getRangeMax(i), func0->getRangeMax(i));
// [e01] [efrac] y(0) ... y(i-1) y(i)
}
// [e01] [efrac] y(0) ... y(n-1)
writePSFmt("%d %d roll pop pop }\n", n+2, n);
break;
case 2: // exponential
func2 = (ExponentialFunction *)func;
n = func2->getOutputSize();
writePSFmt("{ dup %g lt { pop %g } { dup %g gt { pop %g } if } ifelse\n",
func2->getDomainMin(0), func2->getDomainMin(0),
func2->getDomainMax(0), func2->getDomainMax(0));
// x
for (i = 0; i < n; ++i) {
// x y(0) .. y(i-1)
writePSFmt("%d index %g exp %g mul %g add\n",
i, func2->getE(), func2->getC1()[i] - func2->getC0()[i],
func2->getC0()[i]);
if (func2->getHasRange()) {
writePSFmt("dup %g lt { pop %g } { dup %g gt { pop %g } if } ifelse\n",
func2->getRangeMin(i), func2->getRangeMin(i),
func2->getRangeMax(i), func2->getRangeMax(i));
}
}
// x y(0) .. y(n-1)
writePSFmt("%d %d roll pop }\n", n+1, n);
break;
case 3: // stitching
func3 = (StitchingFunction *)func;
thisFunc = nextFunc++;
for (i = 0; i < func3->getNumFuncs(); ++i) {
cvtFunction(func3->getFunc(i));
writePSFmt("/xpdfFunc%d_%d exch def\n", thisFunc, i);
}
writePSFmt("{ dup %g lt { pop %g } { dup %g gt { pop %g } if } ifelse\n",
func3->getDomainMin(0), func3->getDomainMin(0),
func3->getDomainMax(0), func3->getDomainMax(0));
for (i = 0; i < func3->getNumFuncs() - 1; ++i) {
writePSFmt("dup %g lt { %g sub %g mul %g add xpdfFunc%d_%d } {\n",
func3->getBounds()[i+1],
func3->getBounds()[i],
(func3->getEncode()[2*i+1] - func3->getEncode()[2*i]) /
(func3->getBounds()[i+1] - func3->getBounds()[i]),
func3->getEncode()[2*i],
thisFunc, i);
}
writePSFmt("%g sub %g mul %g add xpdfFunc%d_%d\n",
func3->getBounds()[i],
(func3->getEncode()[2*i+1] - func3->getEncode()[2*i]) /
(func3->getBounds()[i+1] - func3->getBounds()[i]),
func3->getEncode()[2*i],
thisFunc, i);
for (i = 0; i < func3->getNumFuncs() - 1; ++i) {
writePS("} ifelse\n");
}
writePS("}\n");
break;
case 4: // PostScript
func4 = (PostScriptFunction *)func;
writePS(func4->getCodeString()->getCString());
writePS("\n");
break;
}
}
void PSOutputDev::writePSChar(char c) {
if (t3String) {
t3String->append(c);
} else {
(*outputFunc)(outputStream, &c, 1);
}
}
void PSOutputDev::writePS(char *s) {
if (t3String) {
t3String->append(s);
} else {
(*outputFunc)(outputStream, s, strlen(s));
}
}
void PSOutputDev::writePSFmt(const char *fmt, ...) {
va_list args;
char buf[512];
va_start(args, fmt);
vsprintf(buf, fmt, args);
va_end(args);
if (t3String) {
t3String->append(buf);
} else {
(*outputFunc)(outputStream, buf, strlen(buf));
}
}
void PSOutputDev::writePSString(GooString *s) {
Guchar *p;
int n, line;
char buf[8];
writePSChar('(');
line = 1;
for (p = (Guchar *)s->getCString(), n = s->getLength(); n; ++p, --n) {
if (line >= 64) {
writePSChar('\\');
writePSChar('\n');
line = 0;
}
if (*p == '(' || *p == ')' || *p == '\\') {
writePSChar('\\');
writePSChar((char)*p);
line += 2;
} else if (*p < 0x20 || *p >= 0x80) {
sprintf(buf, "\\%03o", *p);
writePS(buf);
line += 4;
} else {
writePSChar((char)*p);
++line;
}
}
writePSChar(')');
}
void PSOutputDev::writePSName(char *s) {
char *p;
char c;
p = s;
while ((c = *p++)) {
if (c <= (char)0x20 || c >= (char)0x7f ||
c == '(' || c == ')' || c == '<' || c == '>' ||
c == '[' || c == ']' || c == '{' || c == '}' ||
c == '/' || c == '%') {
writePSFmt("#%02x", c & 0xff);
} else {
writePSChar(c);
}
}
}
GooString *PSOutputDev::filterPSName(GooString *name) {
GooString *name2;
char buf[8];
int i;
char c;
name2 = new GooString();
// ghostscript chokes on names that begin with out-of-limits
// numbers, e.g., 1e4foo is handled correctly (as a name), but
// 1e999foo generates a limitcheck error
c = name->getChar(0);
if (c >= '0' && c <= '9') {
name2->append('f');
}
for (i = 0; i < name->getLength(); ++i) {
c = name->getChar(i);
if (c <= (char)0x20 || c >= (char)0x7f ||
c == '(' || c == ')' || c == '<' || c == '>' ||
c == '[' || c == ']' || c == '{' || c == '}' ||
c == '/' || c == '%') {
sprintf(buf, "#%02x", c & 0xff);
name2->append(buf);
} else {
name2->append(c);
}
}
return name2;
}