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This CL changes CJBig2_Context return methods as follows:
* Internal methods return JBig2_Result instead of int.
* Public methods return a bool (for success/failure) instead of int.
In a followup, several of the enum class values may be merged together
since they are not all needed.
Change-Id: Ifdab83b8037262370cd7c4a80e94aa94d59aa589
Reviewed-on: https://pdfium-review.googlesource.com/32310
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
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Instead of having const methods that return non-const pointers.
BUG=pdfium:234
Change-Id: I61495543f67229500dfcf2248e93468e9a9b23cf
Reviewed-on: https://pdfium-review.googlesource.com/32183
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
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Instead of having const methods that return non-const pointers.
BUG=pdfium:234
Change-Id: I598e9b4f267f702e2e71001cfe3aa3c9e9d8c12f
Reviewed-on: https://pdfium-review.googlesource.com/32182
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
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The owned copy needs to be modified, so it should be non-const. Whereas
the unowned copy can be const.
Add a GetClonedDict() method for accessing the modifiable dictionary.
Change-Id: Ia7f6bcc5f917864cd1bbc7b5000a86f6e433ae9a
Reviewed-on: https://pdfium-review.googlesource.com/32181
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Currently all of the GIF related code is being built when support for
the codec is disabled, it just isn't being utilized. Depending on the
settings being used, this unneeded code may or may not get stripped
during linking.
This CL explicitly turns off building the GIF codec code if support
for GIF is turned off.
This also catches a few missed cases from previous CLs.
BUG=pdfium:1080
Change-Id: Ie7fe2d894d2ae2f8f36ae05e0ff256f2ce6ef8d4
Reviewed-on: https://pdfium-review.googlesource.com/32330
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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Currently all of the PNG related code is being built when support for
the codec is disabled, it just isn't being utilized. Depending on the
settings being used, this unneeded code may or may not get stripped
during linking.
This CL explicitly turns off building the PNG codec code if support
for PNG is turned off.
BUG=pdfium:1080
Change-Id: I9c5247145fcadbcb1bd2243aa83350304ba421ff
Reviewed-on: https://pdfium-review.googlesource.com/32270
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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They are mostly CPDF_Object* and derived classes, but others that should
be are marked const as well.
Change-Id: Ib3344d7d8db90940df8edc97c0dd6c59da080541
Reviewed-on: https://pdfium-review.googlesource.com/32180
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
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BUG=pdfium:1049
Change-Id: I3a589fe51f2e584dc130ba31faa144d4494a1b08
Reviewed-on: https://pdfium-review.googlesource.com/32179
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Fix some nits in the code in the process.
Change-Id: I660b3bf547823a11bc291ed2dd1ec19a76b24b5b
Reviewed-on: https://pdfium-review.googlesource.com/32178
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Instead of allocating an N-pixel array to store some temporary values,
just use a single integer.
BUG=chromium:840728
Change-Id: I7a0ff83d814eff127033f25020a7c398db3c2062
Reviewed-on: https://pdfium-review.googlesource.com/32290
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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Currently all of the TIFF related code is being built when support for
the codec is disabled, it just isn't being utilized. Depending on the
settings being used, this unneeded code may or may not get stripped
during linking.
This CL explicitly turns off building the TIFF codec code if support
for TIFF is turned off. It also fixes cases in the code base where tif
was being used instead of tiff.
BUG=pdfium:1080
Change-Id: If6aaa8af5160fdd5b261e63bab7d5984196efcc9
Reviewed-on: https://pdfium-review.googlesource.com/32193
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
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Bug: pdfium:873
Change-Id: I12ae5b8776f5a73c4be81bed53ada05c94d46882
Reviewed-on: https://pdfium-review.googlesource.com/32190
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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Work up the short call stack and mark FPDF_PAGERANGE as an opaque const
pointer. Also fix CPDF_ViewerPreferences::GenericName() to return an
optional string.
Change-Id: I2356d38888fcff8d4da37dd3efc17b284ff90485
Reviewed-on: https://pdfium-review.googlesource.com/32174
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Tested by running safetynet_compare.py on this patch vs master. The
results were 0 regressions and 0 improvements. The two remaining usages
cannot be replaced because they would cause a regression.
Bug: pdfium:177
Change-Id: I43eddf4ffaac2eb063f2004d6606bc3cd6e627ac
Reviewed-on: https://pdfium-review.googlesource.com/32159
Reviewed-by: dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
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No code actually checks to see if it is set.
Change-Id: I37631713d568f116df1c0495ffd7d7d64ddce69a
Reviewed-on: https://pdfium-review.googlesource.com/32186
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Add constants/transparency.h. The header lists constants from chapter 7
of the PDF spec.
BUG=pdfium:1049
Change-Id: I66bd6fceb24807eec9c308e2e47cec3f2f836ffb
Reviewed-on: https://pdfium-review.googlesource.com/32177
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Move the predictor code into the CCodec_FlatePredictorScanlineDecoder
sub-class.
Change-Id: I5a56ba5e051cf55e8fdd039bd38089684ed257be
Reviewed-on: https://pdfium-review.googlesource.com/31272
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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- Move code into a GenerateSpace() function.
- Break apart some font size conversions.
Change-Id: I4d5ea112fc004a31ac38b7c19ff77fcbfe764d38
Reviewed-on: https://pdfium-review.googlesource.com/32157
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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This CL modifies the formcalc transpiler to create less CFX_WideTextBuf
classes as we convert to JavaScript. This can take some pathalogical
formcal from 20sec to convert to .5sec.
Bug: chromium:834575
Change-Id: I428883297bbc3a6a325a4ab0ad51834f2f02ab82
Reviewed-on: https://pdfium-review.googlesource.com/32154
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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Use it in more places there.
Change-Id: I477670a5946ec9033ad5f2bef0fbcddb52682066
Reviewed-on: https://pdfium-review.googlesource.com/31271
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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Avoids a conflict should we wish to have the document actually
track pages, with a GetPage() that returns CPDF_Page.
Do the same thing to CPDF_DataAvail along the way.
Add some missing consts as well.
Change-Id: I2cb2213cc4c0649662fceab80407ee4a3f4cf30e
Reviewed-on: https://pdfium-review.googlesource.com/32158
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Change-Id: Id9288d504f063759f69632ab59b0a21569ff76d8
Reviewed-on: https://pdfium-review.googlesource.com/32113
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Change-Id: Id31b9f6ac33971c47cdb378ff7f9ca7d33f899b9
Reviewed-on: https://pdfium-review.googlesource.com/32112
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Also initialize members in the header.
Change-Id: Id814c4c5042c9d4989fa92b78f68c17f4949f09d
Reviewed-on: https://pdfium-review.googlesource.com/32111
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Change-Id: I3fe99ecb17d37f893ce5d0d59219c82ee31fe7ea
Reviewed-on: https://pdfium-review.googlesource.com/32110
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Avoids scrolling past this noise when looking at document code.
No functional changes.
Change-Id: I4684a8cf4d8894c699cd1c980bc5fc41b2179ad1
Reviewed-on: https://pdfium-review.googlesource.com/32156
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Change-Id: I9d87cefc18a3a468e1bec797bc7711194f6444c7
Reviewed-on: https://pdfium-review.googlesource.com/32155
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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Change-Id: I959d687d7d46fa61e1fe097b0b876ad02d2b123c
Reviewed-on: https://pdfium-review.googlesource.com/32153
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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Also move static private members into the .cpp file.
Change-Id: Idbbdc7c78ac4199968888466caa20c58a5653dfd
Reviewed-on: https://pdfium-review.googlesource.com/32151
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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Change-Id: I667a3cd696d44692fa3d73bdee7c2f48d3039255
Reviewed-on: https://pdfium-review.googlesource.com/32152
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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This existing code has the potential for an integer overflow in it.
When overflow occurs in this function scaling may partially succeed.
This is due to how out of range values are being clamped, which
implicitly swallows the overflow.
This CL changes the calculation to be performed in a 64-bit space and
then attempts to down cast it back to 32-bit space at the end. Because
there are multiple steps it is possible for an intermediate value to
cause an overflow in 32 bit space, but the final value to be valid. If
the downcast is not possible then the stretch operation is failed.
An existing test case has been updated, since it encoded an incorrect
result.
BUG=chromium:839245
Change-Id: I637cc1e2d6c6c2d5394599104f76352c20ead021
Reviewed-on: https://pdfium-review.googlesource.com/32056
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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This CL moves several of the member variables to
CFX_XMLParser::DoSyntaxParse as they are only used in that method. The
names of the members have been updated to make their usage clearer.
Change-Id: I460f2bad0181ece278752bd8d93d6bf63dc6d70a
Reviewed-on: https://pdfium-review.googlesource.com/32050
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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Skip a lot of work that will all fail anyway.
BUG=chromium:838347
Change-Id: Iba45120e436b5547e106feb27dadea92cc948258
Reviewed-on: https://pdfium-review.googlesource.com/32053
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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The current implementation of the GIF codec does not handle the file
cursor moving backwards correctly. Specifically the input buffer that
the data is being read into is not invalidated, so if the entirity of
the buffer hasn't been consumed, a chunk of it will be moved to the
front before reading in more data, which is just
incorrect. Additionally, depending on the specific series of
operations, it is possible that the buffer was allocated for more
space then had been read into it and the uninitialized portion at the
end is being copied to the beginning.
The file cursor may move backwards when dealing with an animated gif
or other image with multiple frames, since all of the control data is
read in on load, and future calls specify what frame to fetch. The
code has been changed to treat the input buffer as invalid when moving
the cursor to a frame location, which will bypass any of the
problematic unused saving behaviour. A call to std::min has been added
to prevent allocation of an input buffer larger then the file size.
Additionally this CL refactors GifReadMoreData to be clearer about
what calculations are occuring, since the existing code reuses a
number of vaguely named variables, making it difficult to follow.
BUG=chromium:839348, chromium:839361
Change-Id: I2865658187bdf30bcad13ef4cac4f51a8966db11
Reviewed-on: https://pdfium-review.googlesource.com/32054
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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Rather than messing with actual inheritence, add type-checking wrappers
and just blatantly cast to incomplete types. Along the way, this points
out places where we would downcast without checking, which I fix.
Change-Id: Ieb303eb46ad8522dfe082454f1f10f247ffd52d5
Reviewed-on: https://pdfium-review.googlesource.com/32030
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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In turn, add CPDF_Document::Extension::GetPDFDoc() so that we can
use the abstract return type in more places.
Mark an internal-only cpdfxfa_context method as private while we're
at it.
Change-Id: I08e64f4b9438bf2f731c3a37cf2a41152bbbd8fa
Reviewed-on: https://pdfium-review.googlesource.com/31916
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Small oversight. Gets type safety.
Change-Id: I669c2c990fdf9013f4bc4835738132ed76e734b8
Reviewed-on: https://pdfium-review.googlesource.com/31991
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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BUG=pdfium:1007
Change-Id: Ib8aecf2e4833f22a4288f6e1381edc11d114c865
Reviewed-on: https://pdfium-review.googlesource.com/31952
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
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This CL moves the switch from CFX_XMLParse::Parse into
CFX_XMLParser::DoSyntaxParse. This means all the work to build the tree
is now done in one place instead of spread between the two methods.
Change-Id: Ie9c6cd67795c3fcbd3e305187a06cd727d386a7c
Reviewed-on: https://pdfium-review.googlesource.com/31950
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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This CL renames ParseTextChar to ProcessTextChar to make the usage
clearer. The method does not do any parsing, it just decides if the char
is part of an entity or not.
Change-Id: I9b70a82a421b02e2352cd07bd88b1e581d8578b7
Reviewed-on: https://pdfium-review.googlesource.com/31930
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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This CL adds a CFX_XMLDocument to act as the XML node container. All
nodes are now owned by the document and the document is returned by the
CFX_XMLParser.
Classes which parse XML files now store the document instead of the root
node.
BUG: chromium:835636
Change-Id: I1e07d6115cf14714911d6fd4c3fa920c94fd5faf
Reviewed-on: https://pdfium-review.googlesource.com/31313
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
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BUG=chromium:837972
Change-Id: I6cfa28bff38870419e4b1e2bced427cfcbf843cd
Reviewed-on: https://pdfium-review.googlesource.com/31912
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
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Another virtual API at the CPDF layer, to avoid a compile time
ifdef XFA.
Change-Id: Ia95c4d3b3d3b773aaf45c49ebcadff6b16ca18c6
Reviewed-on: https://pdfium-review.googlesource.com/31910
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
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Replaces one compile-time #ifdef XFA with a dynamic check and
a call through a virtual API that prevents the CPDF code from
knowing anything about the XFA code.
Change-Id: If0ff9b6918b908b3eac824fe1d525c6d4f7316e7
Reviewed-on: https://pdfium-review.googlesource.com/31890
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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This is an obstacle to introducing dummy CPDF_Pages to underly all
CPDFXFA_Pages, since we would then have a parserless CPDF_Page, whose
parse could never succeed or fail. The m_ParseState would never change,
and if the caller dutifully recalls us until that changes, we hang.
Small separate CL since it might impact non-XFA cases unexpectedly.
Change-Id: I002064e5d4caa44935f50bde0f3b00e3b8cb0bfe
Reviewed-on: https://pdfium-review.googlesource.com/31850
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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- Refer to the string in CFX_BidiString by const-ref.
- Remove useless CharAt() method.
- Turn a member variable into a local variable.
Change-Id: I30f221b7350150c839a793129789d8ea7cc1f331
Reviewed-on: https://pdfium-review.googlesource.com/31670
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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Greatly minimize the impact between going back and forth from
XFA being on/off, so that XFA case is just an extension beyond
the non-XFA data structures we've shipped for years, instead of
being a complete replacement of them.
Change-Id: I6c98206e0ec99ea443547a4931eba912b1764d54
Reviewed-on: https://pdfium-review.googlesource.com/31690
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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Similar tp CPDF_Document::Extension, this is a base type for fpdfsdk/
to use to improve layering.
While we're at it, make pages point to documents to prove they don't
outlive them.
Another small step towards not passing XFA objects across FPDF.
Change-Id: Idcee9da3a18c06331fa56f3d6c188e4ce27d34f2
Reviewed-on: https://pdfium-review.googlesource.com/31631
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
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This CL fixes issues with handling XML instructions in CXFA_DocumentParser.
Unittests were added to verify the behaviour.
Change-Id: Iff8d51d0e6d411419473c9b2c32c700d4bbf86f5
Reviewed-on: https://pdfium-review.googlesource.com/31810
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
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This CL fixes several issues in the CFX_XML class and
adds unit tests.
Change-Id: I05270690de8f3c45dceb866e17ef899ae6d23389
Reviewed-on: https://pdfium-review.googlesource.com/31753
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
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