| Commit message (Collapse) | Author | Age | Files | Lines |
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Mismatched function prototype warnings, and one uninitialised variable.
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Turns out that both the 32 and 4 bit pam devices use the same init
function. Split them out to separate functions for simplicity.
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This seems to fix pbmraw, pamcmyk32 and pnmcmyk.
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This might cause some tiny rounding changes, but for the better.
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The device initialize function currently performs 2 jobs. Firstly,
it fills out the device_procs. Secondly, it performs any minimal
initialization required by the device (typically none).
At various points in the code we want to be able to copy procs
from one 'prototype' device to another, so we call initialize
for that. This populates the device procs, but does other work
that typically requires a 'derived device' structure rather
than a vanilla gx_device to work in.
Accordingly, we split the job into two; initialize_device_procs
(the first part) and initialize_device (the second part). The
initialize_device_procs function will set up the initialize_device
function pointer along with the rest if required.
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Move the initialize procedure out of the device procs table,
and into a bare function pointer at the start of the device proc.
Devices just initialise this, and the rest should fall into place.
This means changes to the device instantion macros (and all the uses
thereof), but makes the code nicer overall. In particular, this
removes the vestigial 'static_procs' structure.
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This produces lots of tiny rounding diffs.
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Discovered these when working on bug 701845 'devicen' device. Checking
uncovered a plethora of other places that used one of these functions
assuming success.
Also the gdev_prn_copy_scan_lines had places that assumed the return code
was a valid line_count, so if negative, could memset many lines in front of
an allocated buffer.
The code in a few of these usages is strange, and we don't have a way to
check them, so this may not match the original intent.
Also, while perusing all of these files, check devices for alloc's that
assume success and fix them (usually return gs_error_VMerror).
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(squash of commits from filesec branch)
Most of this commit is donkeywork conversions of calls from
FILE * -> gp_file *, fwrite -> gp_fwrite etc. Pretty much every
device is touched, along with the clist and parsing code.
The more interesting changes are within gp.h (where the actual
new API is defined), gpmisc.c (where the basic implementations
live), and the platform specific levels (gp_mswin.c, gp_unifs.c
etc where the platform specific implementations have been
tweaked/renamed).
File opening path validation
All file opening routines now call a central routine for
path validation.
This then consults new entries in gs_lib_ctx to see if validation
is enabled or not. If so, it validates the paths by seeing if
they match.
Simple C level functions for adding/removing/clearing paths, exposed
through the gsapi level.
Add 2 postscript operators for path control.
<name> <string> .addcontrolpath -
Add the given <string> (path) to the list of paths for
controlset <name>, where <name> can be:
/PermitFileReading
/PermitFileWriting
/PermitFileControl
(Anything else -> rangecheck)
- .activatepathcontrol -
Enable path control. At this point PS cannot make any
more changes, and all file access is checked.
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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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More problems with intermediate promotion to int, probably caused when
gx_color_index went from 32 to 64 bits.
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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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There are locations in the code where Coverity has complained about
code logic that resulted in passing of unintialized values that
could only occur if num_components < 0 . Since this should never
be the case, we will make it clear by setting num_components and
max_components to uchar. This will limit our support to 256 colors
by a device.
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We don't have an example file for this, but this was spotted
during investigations into Bug 693784.
We can overrun by 1 pixel for odd length rows. When we overrun
we read the lower 4 bits of a byte, and those may be undefined.
Simply make PACIFY_VALGRIND blank these bits before we start.
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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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