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259 Commits

Author SHA1 Message Date
p01
bd9419f1ef Micro optimization of ArithmeticDecoder_readBit 2014-03-13 17:38:12 +01:00
p01
2b6cb317db Optmized decodeRefinement, moving the prediction error outside the inner loop 
There is no need to slow down the inner loop with a test for ltp as it can only
change if prediction is true in which case it only changes in the outer loop.
 2014-03-13 17:38:12 +01:00
p01
840d9d40b6 Reuse the row Uint8Array in JBIG2's decodeBitmap 2014-03-13 17:38:11 +01:00
p01
b2b3836683 Process only once the offset and starting mask JBIG2's drawBitmap 2014-03-13 17:38:11 +01:00
p01
0bca56cbb2 Use changingTemplateX, Y and Bit in JBIG2's decodeBitmap 2014-03-13 17:38:01 +01:00
p01
e2a4328ff2 Optimized bounding box tests in JBIG2's decodeBitmap 2014-03-13 17:38:00 +01:00
p01
2a9fe573c0 Nest JBIG2 prediction if statements together 
ltp can only become truthy if predition is true.
 2014-03-13 17:37:59 +01:00
p01
02a5f9435a More bit friendly decodeIAID and decodeInteger 2014-03-13 17:37:55 +01:00
p01
e862c64bb8 JBIG2 20% faster SimpleSegmentVisitor_drawBitmap 
Moved the switch(combinationOperator) outside the width and height loops
Check bitmap[i][j] before applying the switch(combinationOperator)
 2014-03-13 17:37:53 +01:00
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
2778d75d2c Merge pull request #4437 from yurydelendik/issue4398 
Fixes corrupted by Aspose fonts
 2014-03-13 10:44:02 -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
Yury Delendik
5c20d17c87 Merge pull request #4431 from fkaelberer/ExtractArithmeticDecoder 
Extract arithmetic decoder to own file
 2014-03-13 08:19:11 -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
Ben Browitt
8b6aeee35c Follow JMPR op only if outside of FDEF and IF 2014-03-13 03:19:04 +02:00
Thorben Bochenek
baccf3d160 refactor src/core/pdf_manager.js: rename pdfModel to pdfDocument 
Rename pdfModel to pdfDocument to let the name closer resemble what the
variable actually holds
 2014-03-12 09:54:29 +01:00
Nicholas Nethercote
ea17749b93 Don't get bytes eagerly when creating FlateStream objects. 2014-03-11 16:03:15 -07:00
Nicholas Nethercote
d0253c8291 Don't get bytes eagerly when creating {Jpeg,Jpx,Jbig2}Stream objects. 
This avoids lots of unnecessary work when such streams are referred to via
fetch(), and so their bytes aren't subsequently read. This is a large
performance win on some files.
 2014-03-11 16:03:15 -07:00
Nicholas Nethercote
f12d588258 Add an ensureRange() call to ChunkedStream_makeSubStream(). 
By checking if the data is all present before making a substream, we avoid
cases where we parse part of a stream and then throw a MissingDataException
part-way through, which forces us to later re-read the stream -- possibly
multiple times. This is a sizeable performance win for some cases when file
loading is slow (e.g. over the web).
 2014-03-11 16:03:06 -07:00
Yury Delendik
7dbd088728 Fixes corrupted by Aspose fonts. 2014-03-11 14:16:27 -05:00
fkaelberer
2c8b776687 update comments 2014-03-11 09:14:59 +01:00
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
Brendan Dahl
72a9c7810b Merge pull request #4246 from pnml/hiresmask 
Support for the image mask in higher resolution than the image itself
 2014-03-10 10:34:49 -07:00
fkaelberer
7b5b5178ef Extract duplicate arithmetic decoder to own class 2014-03-10 16:56:00 +01:00
Jonas Jenwald
b05f05589b Merge pull request #4425 from timvandermeij/jpx-syntax 
Making src/core/jpx.js adhere to the style guide
 2014-03-10 15:28:05 +01:00
Tim van der Meij
d5fcfe14d2 Making src/core/jpx.js adhere to the style guide 2014-03-09 22:31:55 +01:00
Tim van der Meij
2712a5a45a Making src/core/jbig2.js adhere to the style guide 2014-03-09 13:03:45 +01:00
Jonas Jenwald
46487e3931 Merge pull request #4418 from timvandermeij/crypto-syntax 
Making src/core/crypto.js adhere to the style guide
 2014-03-09 12:34:44 +01:00
Jonas Jenwald
fe99743844 Merge pull request #4413 from timvandermeij/ps-parser-syntax 
Making src/core/ps_parser.js adhere to the style guide
 2014-03-09 11:39:28 +01:00
Tim van der Meij
3330f0417f Making src/core/crypto.js adhere to the style guide 2014-03-08 23:25:47 +01:00
Tim van der Meij
a615ccdd20 Making src/core/bidi.js adhere to the style guide 2014-03-08 21:49:53 +01:00
Tim van der Meij
2adcaf4f64 Making src/core/ps_parser.js adhere to the style guide 2014-03-08 20:45:25 +01:00
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
Nicholas Nethercote
cb5bb0cec7 Fix mask handling when some bytes are missing. 2014-03-06 21:11:21 -08:00
Tim van der Meij
3df8f89bd4 Fixes off-by-one error when finding missing endstream 2014-03-06 23:57:27 +01:00
Basil A. Zabairatsky
555d33ffc7 Support for the image mask in higher resolution than the image itself 2014-03-07 02:16:39 +06:00
Yury Delendik
1857ced63f Merge pull request #4397 from fkaelberer/FixJPXcolors 
Fix JPX colors
 2014-03-06 08:57:17 -06:00
fkaelberer
6755ea70b0 Fix infinite loop in DecodeStream_ensureBuffer() 2014-03-06 10:31:18 +01:00
fkaelberer
9457095c9c Fix JPX colors 2014-03-06 09:05:24 +01:00
Yury Delendik
ff5ccdeb07 Merge pull request #4383 from nnethercote/more-rgb24 
Use RGB_24BPP form for all images lacking alpha data.
 2014-03-05 07:03:16 -06:00
Yury Delendik
f04ebed579 Merge pull request #4366 from yurydelendik/max-fdefs 
Rejects invalid fpgm table when too many functions
 2014-03-05 06:16:44 -06:00
fkaelberer
eef5ed5c11 Optimizations for 1bpc images 2014-03-05 09:42:16 +01:00
Yury Delendik
f46942758f Merge pull request #4382 from nnethercote/off-by-one 
Avoid extra allocations in ensureBuffer() caused by an off-by-one error.
 2014-03-04 22:27:33 -06:00
Yury Delendik
32fe818af6 Merge pull request #4391 from nnethercote/rm-FakeStream 
Remove FakeStream.
 2014-03-04 21:36:44 -06:00
Yury Delendik
881c7f48f3 Merge pull request #4388 from timvandermeij/fix-corrupt-pdf-offset 
Start counting from actual beginning of PDF file
 2014-03-04 21:28:12 -06:00
Yury Delendik
d809901083 Merge pull request #4381 from nnethercote/transfer 
Transfer GRAYSCALE_1BPP and RGB_24BPP arrays when possible.
 2014-03-04 21:04:02 -06:00
Nicholas Nethercote
fe8b6b0950 Remove FakeStream. 2014-03-04 18:07:15 -08:00
Tim van der Meij
026c45e5d1 Start counting from actual beginning of PDF file 2014-03-04 22:16:54 +01:00
Nicholas Nethercote
a2fe30ff38 Use RGB_24BPP form for all images lacking alpha data. 2014-03-03 20:58:35 -08:00
Nicholas Nethercote
f30babde58 Transfer GRAYSCALE_1BPP and RGB_24BPP arrays when possible. 2014-03-03 18:17:17 -08:00
Nicholas Nethercote
64431a9909 Avoid extra allocations in ensureBuffer() caused by an off-by-one error. 2014-03-03 18:03:48 -08:00
Yury Delendik
6fbbcf5c93 Merge pull request #4362 from Snuffleupagus/bug-925985 
Add 'registered' and 'trademark' to mapPrivateUseChars (bug 925985)
 2014-03-03 09:02:32 -06:00
Nicholas Nethercote
6e4283fc45 Remove unneeded |oldtypes| variable from bidi.js. 2014-03-03 05:09:04 -08:00
Yury Delendik
ba95e0b07b Merge pull request #4353 from nnethercote/more-Array-joins 
Use Array.join() to build up strings in more places.
 2014-03-02 23:26:22 -06:00
Nicholas Nethercote
ab7568c0ff Use Array.join() to build up strings in more places. 2014-03-02 17:54:16 -08:00
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
Yury Delendik
adca8d4291 Rejects invalid fpgm table when too many functions 2014-03-02 15:40:48 -06:00
fkaelberer
583ca3b162 Fix parsing of JP2 images 2014-03-02 22:15:40 +01:00
Mitar
2c82e720b8 Updated to current latest stable version of jshint. 2014-03-01 13:31:25 -08:00
Jonas Jenwald
08687ee9f1 Add 'registered' and 'trademark' to mapPrivateUseChars (bug 925985) 2014-03-01 21:01:33 +01:00
Yury Delendik
a9caf97f85 Merge pull request #4348 from bthorben/refactor/obj.js/2 
Refactor XRef in obj.js
 2014-02-28 13:19:33 -06:00
Yury Delendik
b01301c7ba Merge pull request #4324 from fkaelberer/FasterJBIG2decoding 
Faster JBIG2 decoding
 2014-02-28 12:54:36 -06:00
Brendan Dahl
a77efa0587 Remove unused calculation from bad merge. 2014-02-28 09:58:07 -08:00
Thorben Bochenek
f2f713bf15 Refactor XRef in obj.js 
- remove unused "if (e instanceof Stream)" in XRef_fetch
- split XRef_fetch into XRef_fetchUncompressed and XRef_fetchCompressed
This explains the actual code flow better
- add line breaks after functions
- change the document to conform to current StyleGuide
 2014-02-28 14:00:54 +01:00
fkaelberer
abcc72a173 Faster JBIG2 decoding 2014-02-28 10:53:09 +01:00
Nicholas Nethercote
fdb7c218da Use a cache to minimize the number of Name objects. 2014-02-27 20:41:03 -08:00
Mathieu 'p01' Henri
135660c8ba Fill the initial JBIG2 buffer with 0xFF only if defaultPixelValue is set 
Per the TypedArray specification, ArrayBuffers are initialized with zeros.

http://www.khronos.org/registry/typedarray/specs/latest/#5
 2014-02-27 17:43:21 +01:00
Brendan Dahl
d0f87457d7 Merge pull request #4331 from nnethercote/cleanups 
Minor clean-ups
 2014-02-26 12:06:13 -08:00
Brendan Dahl
0af0c6c99d Merge pull request #4229 from Rob--W/crx-stream-progress 
Get progress bar for PDF streams in Chromium by passing the expected content length to the page
 2014-02-26 11:12:34 -08:00
Nicholas Nethercote
42cbb5b440 Introduce ImageKind constants. 2014-02-25 15:18:04 -08:00
Nicholas Nethercote
4e1f92a893 Clean up putBinaryImageData(). 2014-02-25 15:14:11 -08:00
Nicholas Nethercote
f62c1c469f Special-case 24-bit RGB image-handling. 2014-02-25 15:14:04 -08:00
Brendan Dahl
b187326022 Use default encoding for standard fonts without a file. 2014-02-25 11:28:17 -08:00
Nicholas Nethercote
d4e8b41639 Remove some unnecessary local variables. 2014-02-24 18:25:59 -08:00
Brendan Dahl
f7fea015a9 Remove isFixedPitch check for now. 2014-02-24 17:39:51 -08:00
Nicholas Nethercote
33dd1b0c3c Remove the unnecessary this.buf in CCITTFaxStream. 2014-02-24 16:45:18 -08:00
fkaelberer
5f8546c120 Faster JPX decoding 2014-02-24 18:43:12 +01:00
Yury Delendik
7e1c6a6aa3 Merge pull request #4306 from peerlibrary/warnings 
Info function does not interpolate strings
 2014-02-18 07:48:24 -06:00
Mitar
958a49d655 Info function does not interpolate strings. 2014-02-17 21:25:28 -08:00
Brendan Dahl
f1c73edac4 Fix symbol fonts with no file. 2014-02-11 13:37:12 -08:00
Brendan Dahl
b5b94a4af3 Use built in CMaps and unify the glyph mapping. 2014-02-11 10:27:09 -08:00
Rob Wu
2a19dc86e7 Do not switch to a range request for small PDFs 2014-02-09 23:03:52 +01:00
Ophir LOJKINE
4a66eccedc Rewrite Lexer_getNumber. 
Now, it computes the numbers with only basic arithmetic operations, without first creating a string and then calling parseFloat.
The new function doesn't behave exactly the same as the old one.
In particular, the old behaviour was that when there was a number immediatly followed by an 'E', the 'E' was consumed. Now it's not. It allows for "glued" numbers and operators.
Also, the new function is faster and consumes less memory.
 2014-02-01 21:46:09 +01:00
Brendan Dahl
54f6291cc9 Merge pull request #4207 from yurydelendik/function-split 
Basic function.js split
 2014-01-31 09:37:59 -08:00
Rob Wu
eaf7daf7db [CRX] Pass expected length of stream to viewer 
To get a progress bar for POST/FTP requests in Chromium.
 2014-01-30 23:03:15 +01:00
Brendan Dahl
1e4d35c3a0 Merge pull request #4192 from yurydelendik/shading-r 
Implements shading types 4-7
 2014-01-30 13:36:01 -08:00
Yury Delendik
acb33b3e7d Merge pull request #4213 from nnethercote/strings 
Create less garbage while parsing
 2014-01-30 04:41:53 -08:00
Nicholas Nethercote
164d7a6e15 Don't create a string when lexing all-digit integers. 2014-01-29 18:22:09 -08:00
Nicholas Nethercote
b64cca0bef When lexing numbers, look for digits first. 2014-01-29 18:20:53 -08:00
Nicholas Nethercote
c1ef7e4d63 Use Array.join instead of += to build up strings in the Lexer. 2014-01-29 18:19:58 -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