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For the stack based halftone, we want to set the reference counting data to
zeros/NULLs - in this case, it is later copied into an actually reference
counted, heap allocated object.
Equivalent to 6849cc4774817a2afa2e6f4d77c1aa63e432352f in pdf/
Coverity 375605: Init ref counting entry for gs_halftone
For the stack based halftone, we want to set the reference counting data to
zeros/NULLs - in this case, it is later copied into an actually reference
counted, heap allocated object.
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PostScript 'sethalftone' has an optional parameter "ObjectType" that allows
one of the three object specific types to be set: Vector, Image or Text.
Also add a new PostScript operator to set the current halftone (dev_ht,
set by sethalftone) as the device halftone to be used for an object type:
path, image and text.
For non-PostScript clients, the gs_halftone structure adds a 'objtype'
element (enum) that can be set prior to calling gs_sethalftone.
The gs_gstate_s dev_ht is now an array of HT_OBJTYPE_COUNT elements,
indexed by the gs_HT_objtype_t enum, with HT_OBJTYPE_DEFAULT (value 0)
used for prior sethalftone/setscreen/setcolorscreen operations.
NOTE: adding object types beyond the default+3 entries will require modification
of gx_select_dev_ht since it only uses 3 bits of the 'tag' to get the index
for the dev_ht[] array.
For code style, change to use != NULL instead of != 0 in most places that
this commit touched (but we may want a general cleanup of this everywhere).
TBD: Command line options for all PDL's will need a method to take a
halftone specification -- most likely a file that may be "PS-lite" syntax
and may be limited to a threshold array. Discussions are in progress.
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Run a release build on a linux machine to make arch.h etc. Then
run toolbin/headercompile.pl to test compiling each headerfile
by itself.
Resolve all the missing #includes, add missing repeated include
guards and copyright statements.
Also, update all the header dependencies in the makefiles.
It is possible that the object dependencies in the makefiles can be
simplified now, but that's a task for another day.
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Prevent numerous SEGV points by ensuring error codes are returned and
handled appropriately.
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Also update copyright dates.
Remove gs_cmdl.ps as we no longer use it, and remove its entry from
psfiles.htm.
Remove xfonts.htm as this feature (xfont support) is long, long gone.
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Change how gstate initialisation is done:
Previously we relied on the imager state being a subset of the gstate (thus
assigning an imager state to a graphics state over wrote to the entries
common to both, and didn't overwrite any already set graphics state specific
entries).
Making the imager and graphics states the same means that approach doesn't work,
so this changes it to initialise the entries individually.
Renames gsistate.c->gsgstate.c and gxistate.h->gxgstate.h
Cleanup and fix the gs_state gc stuff.
Uses different check for pre/post clist pdf14 device
Previously, the code used "is_gstate" in the imager/graphics state object
to determine if the code was being called pre or post clist (post clist would
only ever have had an imager_state so is_gstate = false).
With no imager state any more, that test would no longer work (and I am dubious
about whether it was really safe, anyway). Other places check for the presence
of a clist reader device in the pdf14 device structure - so use that here
too.
Adds initial (NULL) value for show_gstate pointer in gs_state.
Removes the now pointless macro for the contents of the graphics state
Changes function names that had "imager" to use "gstate"
Removes the redundant 'is_state' flag
Cleans up gs_(g)state_putdeviceparams():
Previously we had to similar routines: one took a graphics state, and used the
device from the graphics state, the other took an imager state and the device
as an explicit parameter.
With the removal of the imager state, "merge" those two functions
Replaces gs_state with gs_gstate
It makes for less confusion as it really is a g(raphics)state
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Squashed into one commit (see branch for details of the evolution of the
branch).
This brings gpcl6 and gxps into the Ghostscript build system, and a shared
set of graphics library object files for all the interpreters.
Also, brings the same configuration options to the pcl and xps products as we
have for Ghostscript.
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