Documentation
Fixes problems:
- Local GC in a multi-context system caused a crash. Also updates
all the internal type names in zcontext.c by adding a _t suffix if
necessary. (doc/News.htm [1.54]: 2000/07/10 23:56:55 lpd)
- With some high-level drivers, changing the OutputFile after
opening the device could cause a crash. After the fix, doing this works
properly if no pages have actually been written out, but causes a rangecheck
error if any pages have been written. (This is required to maintain internal
consistency.) (doc/News.htm [1.55]: 2000/07/12 14:02:03 lpd)
- The documented limit on the length of a file name was incorrect.
(doc/Language.htm [1.9]: 2000/08/03 06:45:25 lpd)
Increments the version number, in preparation for the next fileset.
(doc/News.htm [1.52]: 2000/07/06 02:45:06 lpd)
Adds a finish_copydevice device procedure, for cleaning up after copying the
bits of a device prototype or instance. For safety, the default
implementation only allows copying the prototype, not instances. This is a
NON-BACKWARD-COMPATIBLE change; however, using copydevice on a device
instance never worked reliably, so it should not have been used this way
before. (doc/Drivers.htm [1.4], doc/News.htm [1.53]: 2000/07/06 04:13:24
lpd)
Updates the references to the Computer Modern Fontmap on CTAN.
(doc/Fonts.htm [1.5], doc/New-user.htm [1.8]: 2000/07/09 23:29:25 lpd)
Updates a couple of release procedures. (doc/Release.htm [1.15]: 2000/07/10
19:32:59 lpd)
Adds documentation and a script for preparing GNU releases from Aladdin
releases. (doc/Release.htm [1.16]: 2000/07/17 17:10:57 lpd)
Clarifies that device parameters set with -d or -s can be changed
subsequently. (doc/Use.htm [1.8]: 2000/07/17 20:13:03 lpd)
Adds a project for making Ghostscript work as a Netscape browser plug-in.
(doc/Projects.htm [1.13]: 2000/07/19 22:50:18 lpd)
Removes the SVG driver from the list of projects, since there is a group
close to completing one (referenced from the Ghostscript home page on the
Web). (doc/Projects.htm [1.14]: 2000/07/20 14:49:52 lpd)
Directs users to the Ghostscript home page on the Web for information about
third-party drivers. (doc/New-user.htm [1.9]: 2000/07/20 14:50:34 lpd)
Adds a partially implemented driver that just produces a trace of its
drawing calls. This driver also serves as a minimal example of how to
implement the high-level driver operations. (doc/Drivers.htm [1.5]:
2000/07/29 04:00:00 lpd)
Updates dates and version #s for the 6.23 fileset. (doc/Bug-info.htm [1.4],
doc/Changes.htm [1.15], doc/Drivers.htm [1.6], doc/Fonts.htm [1.6],
doc/History5.htm [1.3], doc/Htmstyle.htm [1.4], doc/Install.htm [1.5],
doc/Language.htm [1.10], doc/New-user.htm [1.10], doc/News.htm [1.56],
doc/Projects.htm [1.15], doc/Ps2pdf.htm [1.15], doc/Release.htm [1.17],
doc/Use.htm [1.9], man/ps2ps.1 [1.6]: 2000/08/07 17:48:09 lpd)
Procedures
Fixes problems:
- $(GLGEN)/md5.h wasn't deleted after compilation. (lib.mak [1.26]:
2000/07/09 23:19:59 lpd)
- TrueType font loading now requires the Adobe glyph list, but this
dependency was missing from the makefile. (int.mak [1.26]: 2000/07/19
08:11:15 lpd)
- During compilation, GLSRCDIR was searched before GLGENDIR. (We're
very surprised that this didn't cause detectable trouble before.)
(lib.mak [1.27]: 2000/07/19 14:32:00 lpd)
- The dependency on gsparamx.$(OBJ) was incorrectly attached to
pdfwrite.dev rather than psdf.dev. (devs.mak [1.30]: 2000/08/03 17:42:52
lpd)
- 'pre' didn't work with dates in August or September (Tcl doesn't
accept 08 and 09 as valid numbers). (toolbin/pre [1.5]: 2000/08/07 17:35:27
lpd)
Increments the version number, in preparation for the next fileset.
(version.mak [1.17]: 2000/07/06 02:45:06 lpd)
Adds some user-contributed comments about using the Canon BJ200 driver with
the BJ300. (contrib.mak [1.18]: 2000/07/11 15:33:19 lpd)
Updates the (user-contributed) all-architecture build script to work around
a detail in the SGI IRIX C library header files. (all-arch.mak [1.4]:
2000/07/15 19:23:45 lpd)
Adds documentation and a script for preparing GNU releases from Aladdin
releases. (toolbin/makegnu.tcl [1.1]: 2000/07/17 17:10:57 lpd)
Adds a partially implemented driver that just produces a trace of its
drawing calls. This driver also serves as a minimal example of how to
implement the high-level driver operations. (lib.mak [1.28]: 2000/07/29
04:00:00 lpd)
Changes 'gsmake' to report line number rather than character position for
errors and warnings. (toolbin/gsmake.tcl [1.3]: 2000/08/07 17:22:27 lpd)
Updates dates and version #s for the 6.23 fileset. (version.mak [1.18]:
2000/08/07 17:48:10 lpd)
Adds some missing dependencies. (int.mak [1.27], lib.mak [1.29]: 2000/08/07
17:52:22 lpd)
Utilities
Fixes problems:
- An invalid file name or pattern passed to filenameforall would
(incorrectly) return an empty string rather than not returning any file
names at all. (gp_vms.c [1.3]: 2000/07/09 21:09:51 lpd)
- Some DOS/Windows script files didn't use 'call', so they would
terminate execution prematurely if called from another script file.
(lib/ps2pdf.bat [1.5], lib/ps2pdf12.bat [1.4], lib/ps2pdf13.bat [1.4],
lib/ps2pdfxx.bat [1.8]: 2000/07/24 15:12:21 lpd)
Drivers
Implements finish_copydevice for X windows, to allow copying instances as
well as the prototype. (gdevx.c [1.4], gdevx.h [1.3], gdevxini.c [1.7]:
2000/07/06 05:29:46 lpd)
Adds some user-contributed comments about using the Canon BJ200 driver with
the BJ300. (gdevbj10.c [1.2]: 2000/07/11 15:33:19 lpd)
PDF writer
Fixes problems:
- M_2PI was predefined on some systems. (gdevpdfg.c [1.6]:
2000/07/09 23:11:31 lpd)
- The word and character spacing values were not tracked correctly
when mixing text and graphics, sometimes producing horizontally misplaced
text. (gdevpdf.c [1.18], gdevpdfg.c [1.7], gdevpdfu.c [1.10],
gdevpdfx.h [1.19]: 2000/07/11 14:33:54 lpd)
- 'show'ing an empty string could cause the next string to be
positioned incorrectly. (gdevpdft.c [1.14]: 2000/07/27 14:18:11 lpd)
Updates font embedding code to handle CIDFontType 2 fonts. NOT TESTED.
(gdevpdfe.c [1.3]: 2000/07/27 04:18:13 lpd)
Adds glyphs_used to FontDescriptors and pfd to std_fonts in the device
structure. WORK IN PROGRESS. (gdevpdf.c [1.19], gdevpdff.c [1.7],
gdevpdff.h [1.3], gdevpdfx.h [1.20]: 2000/07/27 04:19:24 lpd)
Interpreter (PDF)
Fixes problems:
- If a badly-constructed PDF file referenced one of the 12 base
alphabetic fonts explicitly as a TrueType font (e.g., /BaseFont
/TimesNewRoman /Subtype /TrueType) without embedding it, the substituted
Type 1 font had the wrong Encoding. (lib/pdf_font.ps [1.10]: 2000/07/10
13:18:28 lpd)
- Piped input beginning with a % caused an ioerror. (bug introduced
in 6.22) (lib/pdf_main.ps [1.10]: 2000/07/14 05:30:19 lpd)
- As a result of some recent changes to fix other problems, setting
certain text state parameters (Tf, Ts, Tz) outside of text mode (BT/ET)
caused an error. (lib/pdf_ops.ps [1.6]: 2000/07/19 15:57:54 lpd)
- Setting a singular text matrix (e.g., 0 0 0 0 Tm) caused
an error. (lib/pdf_ops.ps [1.7]: 2000/08/04 16:08:05 lpd)
Interpreter
Fixes problems:
- Removes the '?' procedure, which was defined solely for the
convenience of users who don't read the documentation and which interfered
with the operation of some code produced by the Adobe PS5 Windows driver.
(lib/gs_init.ps [1.18]: 2000/07/09 22:34:30 lpd)
- A constant 1 should have been 1L, causing a warning on systems
where sizeof(long) > sizeof(int). (zarith.c [1.3]: 2000/07/09 23:10:58 lpd)
- The workaround for attempting to set a 4-element PageSize value in
a page device sometimes caused an error. (bug introduced in 6.21)
(lib/gs_setpd.ps [1.4]: 2000/07/10 12:48:54 lpd)
- Redefining setcolorspace could cause an infinite recursion.
(lib/gs_lev2.ps [1.5]: 2000/07/10 13:35:24 lpd)
- Local GC in a multi-context system caused a crash. Also updates
all the internal type names in zcontext.c by adding a _t suffix if
necessary. (zcontext.c [1.4]: 2000/07/10 23:56:55 lpd)
- A garbage collection occurring within a save could cause a memory
access error. (bug introduced in 6.22) (zcontext.c [1.5]: 2000/07/14
05:28:56 lpd)
- Piped input beginning with a % caused an ioerror. (bug introduced
in 6.22) (zfileio.c [1.8]: 2000/07/14 05:30:19 lpd)
- A garbage collection occurring while scanning a binary token
sequence could cause a syntaxerror or corrupted data. (iscan.c [1.3]:
2000/07/18 15:39:02 lpd)
- (correction) An interruption (including a callout for a
procedure-based stream), not a garbage collection, while scanning a binary
token sequence could cause a syntaxerror or corrupted data. (iscan.c [1.4]:
2000/07/18 15:41:55 lpd)
- When loading a TrueType font, invalid glyph numbers in the 'post'
table (which appear in some Adobe-created PDF files) caused an error instead
of being ignored; a test was backwards, causing some embedded TrueType fonts
in PDF files to produce a rangecheck error. (lib/gs_ttf.ps [1.6]: 2000/07/19
08:12:41 lpd)
- When NOPROMPT was set, no flush or flushpage occurred at the end
of a page. (fix from an anonymous user on SourceForge)
(lib/gs_init.ps [1.19]: 2000/07/20 01:40:50 lpd)
- Type 1 or Type 2 fonts with invalid LanguageGroup values < 0
caused an error. (Such fonts are invalid, but some real fonts have garbage
LanguageGroup values, and Adobe software doesn't give an error.)
(zfont1.c [1.6]: 2000/07/24 18:08:38 lpd)
- Errors while executing gs_init.ps and other PostScript
initialization files were sometimes ignored, leading to mysterious error
messages later. (imainarg.c [1.3]: 2000/08/03 06:43:17 lpd)
- Showing text with a singular matrix (scaling matrix x CTM) could
leave extraneous values on the operand stack. (zchar1.c [1.4]: 2000/08/04
16:09:30 lpd)
Increments the version number, in preparation for the next fileset.
(lib/gs_init.ps [1.15]: 2000/07/06 02:45:06 lpd)
Redefines [gs_]copydevice in terms of a new gs_copydevice2/.copydevice2,
which adds a Boolean keep_open argument that requests (but does not
guarantee) that a copy of an open device remain open.
(lib/gs_init.ps [1.16], zdevice.c [1.2]: 2000/07/06 03:26:13 lpd)
Adds a finish_copydevice device procedure, for cleaning up after copying the
bits of a device prototype or instance. For safety, the default
implementation only allows copying the prototype, not instances. This is a
NON-BACKWARD-COMPATIBLE change; however, using copydevice on a device
instance never worked reliably, so it should not have been used this way
before. (lib/gs_init.ps [1.17]: 2000/07/06 04:13:24 lpd)
Adds the ability to load CIDFont resources from CFF OpenType font files.
(lib/gs_cff.ps [1.6], lib/gs_cidfn.ps [1.16]: 2000/07/29 05:58:28 lpd)
Ensures that errordict has at least one empty entry, for the sake of some
astonishingly bad PostScript code that tests for this and has a bug in the
case where it isn't true. (lib/gs_init.ps [1.20]: 2000/08/04 04:29:45 lpd)
Library
Fixes problems:
- Some coordinate computations for Type 1 fonts could lose far too
much precision if _fixed_shift was reduced. (gscoord.c [1.2],
gxmatrix.h [1.2]: 2000/07/11 09:25:46 lpd)
- If the current color space was DeviceRGB, gs_currentgray returned
the wrong value. (bug introduced in 6.22) (gscolor.c [1.3]: 2000/07/11
14:00:09 lpd)
- With some high-level drivers, changing the OutputFile after
opening the device could cause a crash. After the fix, doing this works
properly if no pages have actually been written out, but causes a rangecheck
error if any pages have been written. (This is required to maintain internal
consistency.) (gdevvec.c [1.4]: 2000/07/12 14:02:04 lpd)
- A file had accidentally acquired an incorrect license notice.
(gscoord.c [1.4]: 2000/07/13 02:02:09 lpd)
- Type 2 fonts that used the 'hflex' operator could produce
distorted characters (e.g., slanted bottoms). (gstype2.c [1.4]: 2000/07/13
02:09:21 lpd)
- The use of macros within procedure argument lists confused
ansi2knr. (gximage3.c [1.5], gximage3.h [1.3]: 2000/07/19 14:30:45 lpd)
- Freeing a locking allocator could cause infinite recursion.
(gsmemlok.c [1.2]: 2000/07/19 21:32:12 lpd)
- "Accurate curves" was a no-op for certain cases of horizontal or
vertical tangents. (gxpcopy.c [1.2]: 2000/08/05 01:04:28 lpd)
Increments the version number, in preparation for the next fileset.
(gscdef.c [1.5]: 2000/07/06 02:45:06 lpd)
Redefines [gs_]copydevice in terms of a new gs_copydevice2/.copydevice2,
which adds a Boolean keep_open argument that requests (but does not
guarantee) that a copy of an open device remain open. (gsdevice.c [1.5],
gsdevice.h [1.2]: 2000/07/06 03:26:13 lpd)
Adds a finish_copydevice device procedure, for cleaning up after copying the
bits of a device prototype or instance. For safety, the default
implementation only allows copying the prototype, not instances. This is a
NON-BACKWARD-COMPATIBLE change; however, using copydevice on a device
instance never worked reliably, so it should not have been used this way
before. (gdevbbox.c [1.2], gdevdflt.c [1.2], gdevht.c [1.2],
gdevmem.h [1.2], gdevnfwd.c [1.2], gdevprn.h [1.5], gdevrops.c [1.2],
gsdevice.c [1.6], gxacpath.c [1.2], gxclip.c [1.2], gxclip2.c [1.2],
gxclipm.c [1.2], gxclist.c [1.2], gxdevcli.h [1.2], gxdevice.h [1.3],
gxpcmap.c [1.2]: 2000/07/06 04:13:24 lpd)
Adds a little more tracing output for images. (gxidata.c [1.3]: 2000/07/09
21:04:25 lpd)
Adds _simple_final structure type definition macros. (gsstruct.h [1.3]:
2000/07/10 15:43:30 lpd)
Removes a structure member no longer needed after a recent fix.
(gscoord.c [1.3], gxmatrix.h [1.3]: 2000/07/12 04:49:43 lpd)
Adds the ability to write subsetted CIDFontType 2 (TrueType-based) fonts.
(gdevpsf.h [1.6], gdevpsft.c [1.2], gdevpsfu.c [1.3], gxfcid.h [1.5]:
2000/07/21 01:09:16 lpd)
Adds a partially implemented driver that just produces a trace of its
drawing calls. This driver also serves as a minimal example of how to
implement the high-level driver operations. (gdevtrac.c [1.1]: 2000/07/29
04:00:00 lpd)
Improves the smoothness of ShadingType 4 - 7 gradient fills.
(gxshade4.c [1.2], gxshade6.c [1.2]: 2000/08/03 20:47:48 lpd)
Updates dates and version #s for the 6.23 fileset. (gscdef.c [1.6]:
2000/08/07 17:48:10 lpd)