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268 Commits

Author SHA1 Message Date
Nicholas Nethercote
9576047f0d Add ToUnicodeMap class. 2014-08-07 20:05:24 -07:00
Yury Delendik
2b87ff9286 Merge pull request #5008 from nnethercote/better-QueueOpt 
Make QueueOptimizer easier to read.
 2014-08-05 16:59:26 -05:00
Jonas Jenwald
87038e44cd Add strict equalities in src/core/evaluator.js 2014-08-01 18:40:10 +02:00
Nicholas Nethercote
b86daed29d Make CMap.map quasi-private. 
This makes it easier for the representation to be improved.
 2014-07-30 06:26:35 -07:00
Jonas Jenwald
2485f11829 Fix loading of PDF files with invalid or missing Type3 characters (issue 5039) 2014-07-24 15:03:22 +02:00
Nicholas Nethercote
a483c80fc3 Make QueueOptimizer easier to read. 
QueueOptimizer is really hard to read. Enough so that it's blocking my
efforts to streamline the representation used for operator lists.

This patch improves its readability in the following ways.

- More descriptive variable names make the sequence checking much clearer,
  as do additional comments.

- The addState() functions now return the index of the first op past the
  sequence, instead of setting context.currentOperation to the last op of
  the sequence.

- The loop in optimize() is clearer.

- The array modification in the fourth addState() function is much clearer
  -- we're just removing trios of ops.

- All four |addState| functions are now more consistent with each other.

I used some debug printfs to find documents where these optimizations are
used and then checked that the number of optimized ops was the same before
and after my changes.
 2014-07-03 19:16:31 -07:00
Jonas Jenwald
04975acceb Prevent CMapFactory.create from failing by passing the necessary parameters from PartialEvaluator_readToUnicode (issue 5010) 2014-06-27 00:46:16 +02:00
Yury Delendik
6d5a04149b Merge pull request #4993 from pramodhkp/rectelmnt 
Combine re element into constructPath
 2014-06-24 09:27:21 -05:00
pramodhkp
8407d28c9e Combine re element into constructPath 2014-06-25 00:27:42 +05:30
Fabian Lange
60f67c3961 Restructured EvaluatorPreprocessor_read to be more natural. 2014-06-23 23:35:25 +02:00
Nicholas Nethercote
081866a184 Use null instead of [] for ops with no args. 
This reduces peak RSS on one test file from ~600 to ~560 MiB.
 2014-06-22 16:03:48 -07:00
Yury Delendik
b557b87fc9 Merge pull request #4972 from nnethercote/preprocessor-read 
Avoid allocating return object in EvaluatorPreprocessor_read().
 2014-06-18 22:00:31 -05:00
Nicholas Nethercote
17170af3c7 Avoid allocating return object in EvaluatorPreprocessor_read(). 
This function can be called 100s of 1000s or even millions of times, and the
allocated return object accounts for 10% of all GC thing allocations for some
documents. It's easy to avoid, which reduces stress on the garbage collector,
and this patch does that.
 2014-06-18 16:41:29 -07:00
Nicholas Nethercote
bce7601480 Build up textChunk.str more efficiently. 
PartialEvaluator.getTextContent() builds up textChunk strings 1 char at a time,
creating many 100s of 1000s of intermediate strings along the way. This patch
make it instead push chars to an array and then join them at the end, as we
have done in numerous other places.
 2014-06-18 07:48:22 -07:00
Yury Delendik
5a2e511cbd Merge pull request #4955 from timvandermeij/rename-concatenate 
Renames concatenateToArray to appendToArray
 2014-06-17 08:21:47 -05:00
Yury Delendik
0cd28ebfa3 Telemetry for used stream and font types 2014-06-16 16:41:04 -05:00
Tim van der Meij
9c072a5d4b Renames concatenateToArray to appendToArray 2014-06-16 22:10:10 +02:00
Nicholas Nethercote
7923eb7edb Fix mishandling of incomplete, inverted masks. 2014-06-13 06:14:52 -07:00
Jonas Jenwald
c0250e16e3 Return ErrorFont in loadFont when the fontRef is undefined 2014-06-12 12:46:39 +02:00
Jonas Jenwald
7802a7ab97 Handle cases where the fontName contains non-alphanumeric characters (issue 4909) 2014-06-10 17:25:49 +02:00
Yury Delendik
b2d8e73d54 Merge pull request #4895 from p01/Small_optimizations_1 
Small optimizations 1
 2014-06-10 10:09:12 -05:00
p01
6731de6829 Minor refactoring of EvaluatorPreprocessor_read 2014-06-10 12:37:40 +02:00
p01
d4a01f6034 evaluator.js minor optimizations 2014-06-10 12:37:37 +02:00
Fabian Lange
532d7246ea add object id to streams to prevent infinite loops. 
fixes http://bugzil.la/1020858
 2014-06-10 11:29:25 +02:00
Yury Delendik
844bc644fb Merge pull request #4861 from timvandermeij/xobject 
Fixes unhandled XObject subtype PS error
 2014-05-29 08:40:57 -05:00
Jonas Jenwald
7e6cdc74af Merge pull request #4832 from yurydelendik/showtext 
Refactors showText: split type3, remove showSpacedText
 2014-05-29 12:58:09 +02:00
Tim van der Meij
e128bdc397 Fixes unhandled XObject subtype PS error 2014-05-29 11:53:13 +02:00
Yury Delendik
542c9c4c7a Moves ColorSpace logic into evaluator 2014-05-23 14:11:47 -05:00
Yury Delendik
d53dc2e7d6 Refactors showText: split type3, remove showSpacedText 2014-05-23 13:36:54 -05:00
Yury Delendik
e5a0d89da9 Refactors loadFont for translateFont be async; fixes type3 dup data 2014-05-19 16:27:54 -05:00
Yury Delendik
88aa396aca Terminate getOperationList and getTextContent every 20 ms 2014-05-19 16:19:54 -05:00
Yury Delendik
d8eb8b1de1 Adds Promise to the getOperatorList 2014-05-19 16:19:54 -05:00
Christian Krebs
3e7bcaa892 Handle nested post script arguments in the preprocessor 
Fix for issue #4785
 2014-05-15 19:49:43 +02:00
Jonas Jenwald
b907e15a90 Build paths for glyph accents when drawing text as curves 2014-05-14 00:04:44 +02:00
Jonas Jenwald
44cd0f4a76 Merge pull request #4752 from yurydelendik/refmsghdlr 
Refactors MessageHandler.send to remove callbacks
 2014-05-13 22:47:04 +02:00
Yury Delendik
a26d28a393 Merge pull request #4683 from yurydelendik/grouppath 
Groups path commands into single operation
 2014-05-08 22:16:58 -05:00
Yury Delendik
2008f74185 Refactors MessageHandler.send to remove callbacks 2014-05-07 18:15:25 -05:00
Tim van der Meij
3ddc534920 Tiny updates 2014-05-01 21:05:32 +02:00
Yury Delendik
63d5aae3f6 Groups path commands into single command 2014-04-30 09:09:04 -05:00
Yury Delendik
a468f7215d Fixes spacing in the text layer builder 2014-04-16 11:14:57 -05:00
Rob Wu
2e97c0d085 Remove some unused variables from src/ 
Only obviously useless, local variables have been removed.
 2014-04-15 17:10:23 +02:00
Yury Delendik
f954cde8f4 Merge pull request #4581 from Snuffleupagus/issue-4575 
Check that images have valid dimensions (issue 4575)
 2014-04-14 15:23:44 -05:00
Yury Delendik
eb8924a79f Merge pull request #4613 from yurydelendik/buildImagePromise 
Refactors buildImage to use Promise; don't draw bad images
 2014-04-14 15:23:06 -05:00
Yury Delendik
a00f854848 Refactors buildImage to use Promise; don't draw bad images 2014-04-14 15:22:35 -05:00
Joshua T Kalis
5828b2c687 Refactor - remove redundant function and all references 
The function `assertWllFormed` was doing nothing different than `assert` which is
available in the same namespace. Removing it will lighten the filesize - albeit
very slightly - and reduce complexity.
 2014-04-13 16:18:07 -04:00
Tim van der Meij
f463f96f35 Resolving new lint issues 2014-04-11 00:41:18 +02:00
Tim van der Meij
df91acf239 Fixes lint warning W004 in src/core 2014-04-11 00:41:08 +02:00
Brendan Dahl
5bd8a83c9b Build the text layer geometry on the worker. 2014-04-09 16:44:07 -07:00
Brendan Dahl
a6e5f31ca1 Merge pull request #4423 from chriskr/font-aliases 
Treat fonts with the same font descriptor and encoding as aliases
 2014-04-09 10:26:09 -07:00
Jonas Jenwald
3a9b5b3951 Check that images have valid dimensions (issue 4575) 2014-04-09 13:04:27 +02:00
Jonas Jenwald
811f1b1d05 Workaround for cases where FontName in the FontDescriptor differs from BaseFont in the Font (bug 847420) 2014-04-09 11:29:33 +02:00
Christian Krebs
79f34b183c Treat fonts with the same font descriptor, encoding and unicode map as aliases 
Different fonts can point to the same font descriptor
(see https://github.com/mozilla/pdf.js/issues/4339 for details). With this
commit such fonts are treated as aliases if they have also the same encoding
and the same toUnicode map. The according info is stored on the font descriptor.
This change must also ensure that aliases use always the same font name
because translated fonts can get cleared depending on the CLEANUP_TIMEOUT setting.
 2014-04-08 20:45:21 +02:00
Yury Delendik
31f081ae17 Doesn't traverse cyclic references in Dict.getAll; reduces empty-Dict garbage 2014-03-26 09:07:38 -05:00
Tim van der Meij
c6a06c0f16 Making src/core/evaluator.js adhere to the style guide 2014-03-22 19:15:51 +01:00
Yury Delendik
878a123e47 Merge pull request #4478 from nnethercote/plain-fnArray 
Use a vanilla array for fnArray
 2014-03-20 10:30:29 -05:00
Yury Delendik
1801fb2c37 Merge pull request #4474 from chriskr/draw-image-subpixel-support 
Introduce paintSolidColorImageMask command to handle 1x1 solid image
 2014-03-19 14:31:15 -05:00
Christian Krebs
fc9edfcf76 Introduce paintSolidColorImageMask command to handle 1x1 solid image masks 
See https://github.com/mozilla/pdf.js/issues/4436 for details
 2014-03-19 13:27:59 +01:00
Nicholas Nethercote
292b96a0bf Make fnArray always be a plain array. 
This makes the code much simpler, and the extra memory use is tiny -- a vanilla
1000 element array is only 4000 bytes larger than a Uint32Array of the same
size.
 2014-03-17 17:48:53 -07:00
Nicholas Nethercote
42d175efd4 Fix some indenting within OperatorList. 2014-03-17 17:11:40 -07:00
Brendan Dahl
1802ffffb8 Merge pull request #4447 from nnethercote/object-reduction 
Allocate fewer objects
 2014-03-17 12:50:23 -07:00
Yury Delendik
69efd9cb96 CMaps binary packing 2014-03-14 16:46:35 -05:00
Nicholas Nethercote
3759c11f42 Avoid more allocations in bidi(). 2014-03-13 22:15:09 -07:00
Yury Delendik
1aaeec8020 Heuristic to optimize chunking 2014-03-13 11:01:34 -05:00
Yury Delendik
257898b359 Caching inlined mask images 2014-03-13 11:01:34 -05:00
Yury Delendik
f48f57e30a Caches last parsed resource image, recornizes image repeats 2014-03-13 11:00:10 -05:00
Yury Delendik
2c23be369b Optimizing pdf when text printed char-by-char 2014-03-13 11:00:10 -05:00
Yury Delendik
dbb3d17d8f Refactors optimization list 2014-03-13 11:00:10 -05:00
Yury Delendik
1c0e1cc591 Merge pull request #4444 from nnethercote/min-length 
Estimate the size of decoded streams in advance.
 2014-03-13 10:58:31 -05:00
Yury Delendik
03bedaa316 Merge branch 'master' of github.com:mozilla/pdf.js into issue-4370 2014-03-13 10:38:11 -05:00
Jonas Jenwald
b0824e1626 Prevent circular reference when checking for blend modes (issue 4370) 2014-03-13 10:36:49 -05:00
Yury Delendik
7963f22545 Merge pull request #4259 from brendandahl/built-in-cmaps-squash 
Adds built in CMaps and unifies the glyph mapping.
 2014-03-13 10:27:48 -05:00
Nicholas Nethercote
b3024db677 Estimate the size of decoded streams in advance. 
When decoding a stream, the decode buffer is often grown multiple times, its
byte size increasing like so: 512, 1024, 2048, etc. This patch estimates the
minimum size in advance (using the length of the encoded stream), often
allowing the smaller sizes to be skipped. It also renames numerous |length|
variables as |maybeLength| to make it clear that they can be |null|.

I measured this change on eight documents. This change reduces the cumulative
size of decode buffer allocations by 0--32%, with 10--20% being typical. This
reduces peak RSS by 10 or 20 MiB for several of them.
 2014-03-13 02:06:58 -07:00
Brendan Dahl
57e896d29e Merge pull request #4406 from nnethercote/fix-and-transfer-masks 
Improve image mask handling again
 2014-03-10 16:26:22 -07:00
Nicholas Nethercote
00c1cff405 Transfer image masks when when possible, instead of copying. 2014-03-08 04:25:00 -08:00
Samuel Chantaraud
076b3433b4 Improved annotations' display/behavior. 
Added an "InteractiveAnnotation" class to homogenize the annotations' structure (highlighting) and user interactions (for now, used for text and link annotations).

Text annotations:
The appearance (AP) has priority over the icon (Name).
The popup extends horizontally (up to a limit) as well as vertically.
Reduced the title's font size.
The annotation's color (C) is used to color the popup's background.
On top of the mouseover show/hide behavior, a click on the icon will lock the annotation open (for mobile purposes). It can be closed with another click on either the icon or the popup.

An annotation printing is conditioned by its "print" bit
Unsupported annotations are not displayed at all.
 2014-03-07 10:48:42 -04:00
Yury Delendik
9a918572dd Merge pull request #4336 from nnethercote/rgb24 
Special-case 24-bit RGB image-handling
 2014-03-02 19:53:42 -06:00
Yury Delendik
ad4eb9a21d Merge pull request #4354 from nnethercote/Name-cache 
Use a cache to minimize the number of Name objects.
 2014-03-02 18:44:29 -06:00
Mitar
2c82e720b8 Updated to current latest stable version of jshint. 2014-03-01 13:31:25 -08:00
Brendan Dahl
a77efa0587 Remove unused calculation from bad merge. 2014-02-28 09:58:07 -08:00
Nicholas Nethercote
fdb7c218da Use a cache to minimize the number of Name objects. 2014-02-27 20:41:03 -08:00
Nicholas Nethercote
42cbb5b440 Introduce ImageKind constants. 2014-02-25 15:18:04 -08:00
Nicholas Nethercote
f62c1c469f Special-case 24-bit RGB image-handling. 2014-02-25 15:14:04 -08:00
Nicholas Nethercote
d4e8b41639 Remove some unnecessary local variables. 2014-02-24 18:25:59 -08:00
Brendan Dahl
b5b94a4af3 Use built in CMaps and unify the glyph mapping. 2014-02-11 10:27:09 -08:00
Brendan Dahl
cda181f061 Merge pull request #4187 from Rob--W/issue-4183 
Use forEach instead of for-in (was: Replace [] with {} in core/cmap)
 2014-01-29 10:54:49 -08:00
Yury Delendik
c5a804c43a Merge pull request #4181 from nnethercote/compact-images 
Reduce memory consumption of simple black and white images.
 2014-01-28 15:53:46 -08:00
Nicholas Nethercote
a966909754 Reduce memory consumption of simple black and white images. 2014-01-28 14:36:47 -08:00
Yury Delendik
bf432a37bb Refactors shared/pattern.js into core/ and display/ 2014-01-25 12:18:22 -06:00
Rob Wu
2779bab03e Use [].forEach instead of for-..-in in evaluator 
To prevent errors whenever the array's prototype is extended.
 (cmap is an array)
 2014-01-25 18:04:33 +01:00
Tim van der Meij
3c6ac0dad5 Merge pull request #4161 from yurydelendik/smask 
SMask emulation
 2014-01-23 11:49:19 -08:00
Yury Delendik
4054b0c385 SMask emulation 2014-01-23 11:13:32 -06:00
Brendan Dahl
f18e3e9e0f Merge pull request #4144 from yurydelendik/api-doc 
Misc fixes for the API docs
 2014-01-21 11:31:16 -08:00
Jonas Jenwald
575bdd8863 Fix loading of fonts with invalid encoding name entry (bug 859204 and 878112) 2014-01-21 02:03:28 +01:00
Yury Delendik
96fff4cc74 Refactors getTextContent return value 2014-01-17 13:26:00 -06:00
Yury Delendik
09f8f951c8 Extracts evaluator preprocessor and refactor text extraction 2014-01-17 07:16:52 -06:00
Brendan Dahl
455265474a Merge pull request #4093 from yurydelendik/issue4068 
Fixes fips regression from #4068
 2014-01-16 13:45:10 -08:00
Brendan Dahl
ff66c23e6e Merge pull request #4089 from yurydelendik/issue3725 
Takes ascent/descent in account in the text layer
 2014-01-16 13:12:04 -08:00
Nicholas Nethercote
3f533a1cb0 Use a more compact typed array to pass the image mask from the worker to the main thread. 2014-01-13 20:09:05 -06:00
Yury Delendik
96eaa15578 Fixes fips regression from #4068 2014-01-08 16:33:22 -06:00
Yury Delendik
0131101275 Takes ascent/descent in account in the text layer 2014-01-08 13:50:52 -06:00
Brendan Dahl
bac4133f21 Merge pull request #4068 from yurydelendik/bug864847 
Adjusts heuristic for disabling Symbol encoding
 2014-01-08 10:48:18 -08:00
Yury Delendik
5bf3e44e30 Introduces LegacyPromise; polyfills DOM Promise 2014-01-03 18:17:05 -06:00
Brendan Dahl
2228343f77 Only trigger warning bar on certain unsupported features. 2014-01-03 09:34:13 -08:00
Yury Delendik
5973d40afe Adjusts heuristic for disabling Symbol encoding 2014-01-02 18:44:11 -06:00
Jonas Jenwald
b1c5ef9ccc Fix loading of fonts that are not referenced by an object identifier 2013-12-17 00:19:31 +01:00
Brendan Dahl
a4f329aa38 Combine if/else block with switch for getOperatorList. 2013-11-18 16:50:58 -08:00
Brendan Dahl
29ee96cc67 Merge pull request #3927 from Snuffleupagus/issue-3925 
Prevent updating the current transformation matrix when the stateStack is empty
 2013-11-18 14:04:56 -08:00
Brendan Dahl
3132c9e7e9 Merge pull request #3911 from yurydelendik/mem-redux2 
Cleaning up fonts when viewer is idle for some time
 2013-11-18 13:01:23 -08:00
Yury Delendik
e712c4136a Cleaning up fonts when viewer is idle for some time 2013-11-18 13:01:54 -06:00
Jonas Jenwald
564ae6e4f7 Prevent updating the current transformation matrix when the stateStack is empty 2013-11-17 01:54:14 +01:00
Yury Delendik
4ce6cb8b0f Uses postMessage transfers 2013-11-14 15:21:42 -08:00
Brendan Dahl
f4942b11f8 Reduce the memory usage of the operator list. 2013-11-13 11:43:38 -08:00
Yury Delendik
104d89856d Renames Symbol encoding name. 2013-10-31 10:33:23 -05:00
Brendan Dahl
f32e65b19f Read multi-byte character codes based on codespace ranges. 2013-09-25 10:32:04 -07:00
Srishti
3808d02a53 implementing transform matrix to getTextContent 2013-09-20 06:37:08 +05:30
Brendan Dahl
60586e3101 Ensure there's data to build path. 2013-08-22 12:55:43 -07:00
Brendan Dahl
bb2529de03 Move the creation of canvas path fonts to the worker. 2013-08-19 16:33:20 -07:00
Brendan Dahl
5ecce4996b Split files into worker and main thread pieces. 2013-08-12 10:48:06 -07:00