diff options
Diffstat (limited to 'Resource/Init/pdf_ops.ps')
| -rw-r--r-- | Resource/Init/pdf_ops.ps | 204 |
1 files changed, 90 insertions, 114 deletions
diff --git a/Resource/Init/pdf_ops.ps b/Resource/Init/pdf_ops.ps index d594035c..eb2168a5 100644 --- a/Resource/Init/pdf_ops.ps +++ b/Resource/Init/pdf_ops.ps @@ -279,8 +279,8 @@ currentdict /gput_always_allow .undef /DeviceCMYK { [0 0 0 1] cvx } bind executeonly /CIEBasedA { 0 } bind executeonly /CIEBasedABC { [0 0 0] cvx } bind executeonly - /CalGray { pop /DeviceGray 0 } bind executeonly - /CalRGB { pop /DeviceRGB [0 0 0] cvx } bind executeonly + /CalGray { 0 } bind executeonly + /CalRGB { [0 0 0] cvx } bind executeonly /Lab {[0 0 0] cvx } bind executeonly /ICCBased { [ 1 index 1 oget /N get { 0 } repeat ] cvx } bind executeonly /Separation { 1 } bind executeonly @@ -701,7 +701,7 @@ end % NB: setup_trans is defined as either setupOPtrans (for devices that can support % overprint, or as setupSMtrans which pushes a group for SMask. % Also see 'teardown_trans' that pops the group and resets the changed values. -/setupOPtrans % <fillop|strokeop> setup_trans +/setupOPtrans % [ pathbbox ] <fillop|strokeop> setup_trans { % Check OP and BM in case we need to push a group //OPsaveDstack begin //Dpush exec % push the current OPsaveDstack values into 'previous' @@ -719,41 +719,34 @@ end } ifelse .currentSMask //null ne or { % push a group for OP or SMask mark /Subtype /Group /Isolated .currentSMask //null ne .dicttomark - 1 index /stroke eq { - % BBox needs to include line width / line join expansion. - gsave strokepath pathbbox grestore - } { - pathbbox % fill/eofill cases - } ifelse + 2 index aload pop % pathbbox .begintransparencygroup % After group pushed, set opacityalpha, shapealpha and blendmode /saveOA .currentopacityalpha def /saveSA .currentshapealpha def 1 .setopacityalpha 1 .setshapealpha /GroupPushed //true def - } if + } { + /GroupPushed //false def + } ifelse % we may change to CompatibleOverprint even if we didn't push a group. ChangeBM { /saveBM .currentblendmode def /CompatibleOverprint .setblendmode } if pop % fillop/strokeop + pop % pathbbox array end % OPsaveDstack } bind executeonly def % Also see 'teardown_trans' that pops the group and resets the changed values. -/setupSMtrans % <fillop|strokeop> setup_trans +/setupSMtrans % [ pathbbox ] <fillop|strokeop> setup_trans { //OPsaveDstack begin //Dpush exec % push the current OPsaveDstack values into 'previous' .currentSMask //null ne 1 index /image ne and % only push for SMask if not from image { mark /Subtype /Group /Isolated //true .dicttomark - exch /stroke eq { - % BBox needs to include line width / line join expansion. - gsave strokepath pathbbox grestore - } { - pathbbox % fill/eofill cases - } ifelse + 2 index aload pop % pathbbox .begintransparencygroup % After group pushed, set opacityalpha, shapealpha and blendmode /saveOA .currentopacityalpha def @@ -762,9 +755,10 @@ end /GroupPushed //true def } { /GroupPushed //false def - pop % fillop/strokeop } ifelse end % OPsaveDstack + pop % fillop/strokeop + pop % pathbbox array } bind executeonly def % If a transparency group was pushed, pop it, and reset the settings. @@ -791,9 +785,23 @@ currentdict dup /Dpush .undef /Dpop .undef /fsexec % <fillop|strokeop> fsexec - { PDFusingtransparency { - dup setup_trans - cvx exec - teardown_trans + dup /stroke eq 1 index /.fillstroke eq or 1 index /.eofillstroke eq or { + % BBox needs to include line width / line join expansion. + % strokepath will return empty path (no currentpoint) if nothing is stroked + { gsave strokepath pathbbox } stopped grestore { + % If we get an error, just emit an empty box + 0 0 0 0 + } if + } { + % If we get an error, just emit an empty box + { pathbbox } stopped { 0 0 0 0 } if + } ifelse + % pathbbox valid -- proceed with drawing + 4 array astore % pathbbox + 1 index + setup_trans + cvx exec + teardown_trans } { cvx exec } ifelse @@ -924,23 +932,7 @@ currentdict dup /Dpush .undef /Dpop .undef /B { OFFlevels length 0 eq { - PDFusingtransparency { - % knockout trans group around the filled and stroked object - mark - /Isolated //true /Knockout //true - .dicttomark - % strokepath will return empty path (no currentpoint) if nothing is stroked - gsave { strokepath pathbbox } stopped grestore not { - 1 .setopacityalpha - .begintransparencygroup - gsave setfillstate fill grestore - setstrokestate .swapcolors /stroke fsexec .swapcolors - .endtransparencygroup - } { newpath pop } ifelse - } { - gsave setfillstate fill grestore - setstrokestate .swapcolors /stroke fsexec .swapcolors - } ifelse + setstrokestate setfillstate /.fillstroke fsexec } { newpath } ifelse @@ -950,23 +942,7 @@ currentdict dup /Dpush .undef /Dpop .undef /B* { OFFlevels length 0 eq { - PDFusingtransparency { - % knockout trans group around the filled and stroked object - mark - /Isolated //true /Knockout //true - .dicttomark - % strokepath will return empty path (no currentpoint) if nothing is stroked - gsave { strokepath pathbbox } stopped grestore not { - 1 .setopacityalpha - .begintransparencygroup - gsave setfillstate eofill grestore - setstrokestate .swapcolors /stroke fsexec .swapcolors - .endtransparencygroup - } { newpath pop } ifelse - } { - gsave setfillstate eofill grestore - setstrokestate .swapcolors /stroke fsexec .swapcolors - } ifelse + setstrokestate setfillstate /.eofillstroke fsexec } { newpath } ifelse @@ -982,49 +958,14 @@ currentdict dup /Dpush .undef /Dpop .undef /f* { OFFlevels length 0 eq { gsave setfillstate eofill grestore } if n } bind executeonly def /B { OFFlevels length 0 eq { - PDFusingtransparency { - % knockout trans group around the filled and stroked object - mark - /Isolated //true /Knockout //true - .dicttomark - % strokepath will return empty path (no currentpoint) if nothing is stroked - gsave {strokepath pathbbox } stopped grestore not - { - 1 .setopacityalpha - .begintransparencygroup - gsave setfillstate fill grestore - setstrokestate .swapcolors /stroke fsexec .swapcolors - .endtransparencygroup - } { - newpath pop - } ifelse - } { - gsave setfillstate fill grestore - setstrokestate .swapcolors /stroke fsexec .swapcolors - } ifelse + .fillstroke } if n } bind executeonly def /b { closepath B } bind executeonly def /B* { OFFlevels length 0 eq { - PDFusingtransparency { - % knockout trans group around the filled and stroked object - mark - /Isolated //true /Knockout //true - .dicttomark - % strokepath will return empty path (no currentpoint) if nothing is stroked - gsave {strokepath pathbbox} stopped grestore not { - 1 .setopacityalpha - .begintransparencygroup - gsave setfillstate eofill grestore - setstrokestate .swapcolors /stroke fsexec .swapcolors - .endtransparencygroup - } { newpath pop } ifelse - } { - gsave setfillstate eofill grestore - setstrokestate .swapcolors /stroke fsexec .swapcolors - } ifelse + .eofillstroke } if n } bind executeonly def @@ -1219,9 +1160,19 @@ end readonly def } bind executeonly def +/clip_if_required { + .currenttextrenderingmode 4 ge + {currentpoint} //.internalstopped exec + {//false} + {pop pop //true} + ifelse and + { .currentfilladjust2 0 dup .setfilladjust2 clip .setfilladjust2} if + newpath +} bind def + /ET_NO_TXT_KO { currentdict /TextSaveMatrix known { - .currenttextrenderingmode 4 ge { .currentfilladjust2 0 dup .setfilladjust2 clip .setfilladjust2 newpath} if + //clip_if_required exec TextSaveMatrix setmatrix currentdict /TextSaveMatrix undef @@ -1244,6 +1195,8 @@ end readonly def } if } bind executeonly def +currentdict /clip_if_required .undef + /ET { //ET_NO_TXT_KO exec % Group push occurred in pdf14_text_begin. @@ -1642,8 +1595,19 @@ end readonly def % If current path is not known to be valid, use the clip path /TextTransSetup { % showarg path_valid TextTransSetup showarg % showarg path_valid false TextTransSetup showarg + gsave % NB: if 'show' is used, then we use the clippath, but a smaller bbox is preferred - not dup { gsave clippath } if //null setup_trans { grestore } if + { + % path was (probably) valid (CTM may not be invertable) + % Since TR mode may include stroking, expand for stroke + % If we get an error, just emit an empty box + { strokepath pathbbox } stopped { 0 0 0 0 } if + } { + clippath pathbbox stopped { 0 0 0 0 } if + } ifelse + grestore + 4 array astore //null + setup_trans } bind executeonly def /TextTransTeardown { @@ -1678,25 +1642,35 @@ end readonly def % operations when the CTM is singular. % Work around this here. { - matrix currentmatrix dup dup - dup 0 get 0 eq 1 index 1 get 0 eq and { - dup dup 2 get 0 eq { 0 }{ 1 } ifelse 1 put - } if - dup 2 get 0 eq 1 index 3 get 0 eq and { - dup dup 1 get 0 eq { 3 }{ 2 } ifelse 1 put - } if - setmatrix - currentpoint - % don't worry about transparency for invisible text - 4 index settextfillstate show % Tr was set to graphic state. - moveto - setmatrix - % now set the currentpoint using the original matrix - gsave - setmatrix - //false charpath currentpoint newpath - grestore - moveto + matrix currentmatrix + % Previously we tested specifically for a scale factor of 0, + % but bug #701875 has a CTM which is minute, but not zero. If + % we try to use that at anything except low resolution FreeType + % ends up trying to deal with glyph metrics where one dimension is 0 + % and it throws an error. So instead of looking for zero, we'll look + % for a really tiny CTM. + % We also used to patch up the CTM, and still use it, but frankly + % this is too much trouble. If the CTM is tiny then the displacement + % due to drawing the text will also be tiny. Negligible in fact. + % So if its that small then lets just ignore it. + dup 0 get abs 0.00001 lt 1 index 1 get 0.00001 abs lt and not { + dup 2 get abs 0.00001 lt 1 index 3 get abs 0.00001 lt and not { + pop + currentpoint + % don't worry about transparency for invisible text + 2 index settextfillstate show % Tr was set to graphic state. + moveto + % now set the currentpoint using the original matrix + gsave + //false charpath currentpoint newpath + grestore + moveto + } { + pop pop + }ifelse + } { + pop pop + }ifelse } } { { //false charpath textrenderingprocs .currenttextrenderingmode get exec } @@ -1919,7 +1893,9 @@ end readonly def 1 .setopacityalpha % While text will always have a currentpoint, strokepath seems to mess with it. % we get the currentpoint, then use moveto to restore it for pathbbox - gsave currentpoint strokepath moveto pathbbox grestore + { gsave currentpoint strokepath moveto pathbbox } stopped grestore { + /tB cvx /undefinedresult signalerror + } if .begintransparencygroup gsave tf grestore tS .endtransparencygroup |