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2017-02-16Change FXTEXT_CHARPOS to use CFX_PointFDan Sinclair
This CL updates the Origin x,y coordinates in FXTEXT_CHARPOS to be an CFX_PointF. Change-Id: I67281db2cb82687e12490145f7c99aee908e5fa8 Reviewed-on: https://pdfium-review.googlesource.com/2718 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2017-02-14Revert "Convert Origins to points"Dan Sinclair
This reverts commit da83d3a5cc09c4056310b3cf299dbbccd5c70d11. Reason for revert: Reverting chain to see if fixes Chrome roll. Original change's description: > Convert Origins to points > > This CL converts various OriginX, OriginY pairs into CFX_PointF objects. > > Change-Id: I9141f7fc713c710b2014d4fdcdec7dc93501f844 > Reviewed-on: https://pdfium-review.googlesource.com/2575 > Commit-Queue: dsinclair <dsinclair@chromium.org> > Reviewed-by: Nicolás Peña <npm@chromium.org> > TBR=tsepez@chromium.org,dsinclair@chromium.org,npm@chromium.org,pdfium-reviews@googlegroups.com NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG= Change-Id: I949fb4ec712e2587e7d0ef0191c34db198b61dcc Reviewed-on: https://pdfium-review.googlesource.com/2696 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
2017-02-13Convert Origins to pointsDan Sinclair
This CL converts various OriginX, OriginY pairs into CFX_PointF objects. Change-Id: I9141f7fc713c710b2014d4fdcdec7dc93501f844 Reviewed-on: https://pdfium-review.googlesource.com/2575 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
2016-12-12fix linux buildcaryclark
Found when adding pdf_use_skia_paths canary to skia status R=dsinclair@chromium.org, borenet@google.com BUG=skia:5849 Review-Url: https://codereview.chromium.org/2569003002
2016-12-06re-enable skia cachingchromium/2944caryclark
This permits consecutive path drawing or text drawing to combine if their graphics state matches. This speeds up rendering considerably when PDFium draws in many small parts. It also allows discarding changes to the clip state that have no effect from draw to draw. All corpus tests draw equivalently with caching enabled or disabled. Change the member order in CPDF_PageRenderContext so the device is flushed before the referencing annotation is deleted. Add more printf style debugging for test draws. R=dsinclair@chromium.org Review-Url: https://codereview.chromium.org/2546803003
2016-11-22handle antialiased rendering as premultipliedcaryclark
Transparencies and bitmap patterns need to be unpremultiplied after Skia renders them so that PDFium can use its own compositing. Also added some linear (i.e. axial) gradient support, although its unclear if any of the test corpus uses this feature. R=dsinclair@chromium.org Review-Url: https://codereview.chromium.org/2520073003
2016-11-21Fixup lint flags.Dan Sinclair
The -build/include setting was masking out build/include_what_you_use. This CL restores them, fixes any build errors, and adds NOLINT as needed. As well, the runtime/explicit and runtime/printf flags are aslo enabled and NOLINT'd. lint cleanups Change-Id: Ib013b3eb29c8d0e48cad74c5df9028684130719f Reviewed-on: https://pdfium-review.googlesource.com/2030 Reviewed-by: Tom Sepez <tsepez@chromium.org>
2016-11-21use skia textcaryclark
This adds text to the _SUPPORT_SKIA_PATHS_ variant. The output of the test corpus has more differences, but no feature changes or dropouts that I can see. The text is a bit lighter. Bungeman thinks this is because of our support of SRGB color, although the fonts also look different so maybe there's more to the story. The output looks compatible with the variations I see in Adobe Reader and Firefox on the same platform. There's probably more text tuning to do. Additionally, this turns off the caching feature for this variation. Caching can't work because the drawing alternates between Skia and PDFium's native blits, so any state caching won't know about changes and drawing performed by the other. R=dsinclair@chromium.org, bungeman@chromium.org Review-Url: https://codereview.chromium.org/2520483002
2016-11-17fix corpus testscaryclark
All corpus tests draw reasonably well. There are pixel differences, but no missing features or large scale errors. This was verified by running run_corpus_tests.py on skiapaths and agg build dirs, then running the skdiff tool to generate a report of the pixel difference. For example, after running $ ninja -C out/skia skdiff $ ./out/skia/skdiff /repo/pdfium/out/agg/gen/pdfium/testing/corpus/ /repo/pdfium/out/skiapaths/gen/pdfium/testing/corpus/ ~/aggskiadiffs view the report in a browser at ~/aggskiadiffs/index.html R=dsinclair@chromium.org BUG=skia:5973 Review-Url: https://codereview.chromium.org/2504863003
2016-11-16Create a subset of skia support for paths onlycaryclark
This is a continuation of https://codereview.chromium.org/2346483006/ This removes the need for agg, without providing full Skia support. It doesn't work yet, but it does compile and run for simple PDFs. R=dsinclair@google.com Committed: https://pdfium.googlesource.com/pdfium/+/5d223298b26c9b2b6284cba9a51521d3873b6e58 Review-Url: https://codereview.chromium.org/2491693002
2016-11-15Revert of Create a subset of skia support for paths only (patchset #10 ↵dsinclair
id:180001 of https://codereview.chromium.org/2491693002/ ) Reason for revert: Breaking the chrome roll. https://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_compile_dbg_ng/builds/306015/steps/generate_build_files%20%28with%20patch%29/logs/stdio Original issue's description: > Create a subset of skia support for paths only > > This is a continuation of https://codereview.chromium.org/2346483006/ > > This removes the need for agg, without providing > full Skia support. > > It doesn't work yet, but it does compile and run > for simple PDFs. > > R=dsinclair@google.com > > Committed: https://pdfium.googlesource.com/pdfium/+/5d223298b26c9b2b6284cba9a51521d3873b6e58 TBR=dsinclair@google.com,caryclark@google.com # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true Review-Url: https://codereview.chromium.org/2503883003
2016-11-15Create a subset of skia support for paths onlycaryclark
This is a continuation of https://codereview.chromium.org/2346483006/ This removes the need for agg, without providing full Skia support. It doesn't work yet, but it does compile and run for simple PDFs. R=dsinclair@google.com Review-Url: https://codereview.chromium.org/2491693002
2016-11-02Remove FX_BOOL from coretsepez
Review-Url: https://codereview.chromium.org/2477443002
2016-09-29Move core/fxge/include to core/fxgedsinclair
BUG=pdfium:611 Review-Url: https://codereview.chromium.org/2377393002
2016-09-20Refactor CFX_FontCache to have only one in GE Module.art-snake
After this CL: only one global CFX_FontCache used. Any cached items from it, are released, when they are not being used. This is restore part of reverted CL: Original CL: https://codereview.chromium.org/2158023002 Revert reason: BUG=647612 Fix bug CL: https://codereview.chromium.org/2350193003 Review-Url: https://codereview.chromium.org/2350243002
2016-09-19Revert of Pdfium: Fix fonts leaking on ClosePage. (patchset #10 id:180001 of ↵dsinclair
https://codereview.chromium.org/2158023002/ ) Reason for revert: Causes heap-use-after-free. See crbug.com/647612. Original issue's description: > Fix memory leaking on ClosePage. > CFX_FontCache refactoring: > after this CL: Only one global CFX_FontCache used. Any cached items from it, are released, when its are not used. > > BUG=79367,48791 > > The fonts was not cleared after unloading pages. > > Test pdf: > > http://www.nasa.gov/pdf/750614main_NASA_FY_2014_Budget_Estimates-508.pdf > > For this file, we have ~5 fonts per page, which equal ~1 Mb per page. > In this PDF we have 670 pages, as result after slow scrolling(reading) full document we have ~600 Mb fonts data in memory. > > memory usage of PDF Plugin: > before this CL: ~660 Mb > after this CL: ~100 Mb > > Committed: https://pdfium.googlesource.com/pdfium/+/cde5101eb15b24519e89fa500fe37038bc8e2201 TBR=tsepez@chromium.org,brucedawson@chromium.org,npm@chromium.org,art-snake@yandex-team.ru # Not skipping CQ checks because original CL landed more than 1 days ago. BUG=79367,48791 Review-Url: https://codereview.chromium.org/2350763002
2016-09-15Fix memory leaking on ClosePage.chromium/2862art-snake
CFX_FontCache refactoring: after this CL: Only one global CFX_FontCache used. Any cached items from it, are released, when its are not used. BUG=79367,48791 The fonts was not cleared after unloading pages. Test pdf: http://www.nasa.gov/pdf/750614main_NASA_FY_2014_Budget_Estimates-508.pdf For this file, we have ~5 fonts per page, which equal ~1 Mb per page. In this PDF we have 670 pages, as result after slow scrolling(reading) full document we have ~600 Mb fonts data in memory. memory usage of PDF Plugin: before this CL: ~660 Mb after this CL: ~100 Mb Review-Url: https://codereview.chromium.org/2158023002
2016-08-17Split fx_font into multiple files, part 1.npm
Moved classes CFX_FontCache and CFX_AutoFontCache into a separate file. Review-Url: https://codereview.chromium.org/2246223002
2016-08-15add native draw bitmap with alpha maskcaryclark
PDFs draw bitmaps with alpha by supplying an image alpha mask along side the image color data. The alpha mask may not be the same scale as the image data. Skia doesn't have a direct mapping for this draw call, but can come close by using the internal SkCompositeShader class. This scales the alpha mask to match the size of the image data, then puts both in the composite shader to draw. There are more things to do: - Allow Alpha8 or Gray8 to draw scaled to a matching device (blit doesn't work today) Temporary code marked with a TODO implements this functionality. - Refactor PDFium to allow SkComposeShader's components to take a matrix. The latter goal will defer drawing so that PDFium doesn't resize the mask, discarding resolution, before Skia has a chance to record it. Additionally fix drawing text with a negative font size. R=reed@google.com,dsinclair@chromium.org,herb@chromium.org Review-Url: https://codereview.chromium.org/2182763002
2016-08-10Move CFX_RenderDevice, CFX_FxgeDevice, and CFX_GraphStateData into their own ↵npm
files. This is the third CL to separate fx_ge into classes, one per file. All fx_ge.h includes had to be replaced with new includes The method definitions for CFX_FxgeDevice were not moved to a single file. These methods are defined in two folders different from fxge/ge, so they were left untouched for now. Review-Url: https://codereview.chromium.org/2223213002
2016-08-08Move CFX_ClipRgn and CFX_PathData into their own files.npm
This is the second CL in an attempt to split up the classes in fxge/include/fx_ge.h into their own files. CFX_ClipRgn is moved to core/fxge/ge because it is only used in core/fxge. The header for CFX_PathData is left in core/fxge/include since it is used elsewhere. Review-Url: https://codereview.chromium.org/2216853004
2016-07-06copy graphics state fullycaryclark
The dash parameters where not copied; the copy could point at random data and cause corpus tests to hang when testing Skia. PDFium measures text directly by calling FreeType. Turn off hinting altogether in Skia so that drawn text matches the metrics that PDFium measures. Premultiply bits retrieved from images, and check to see that the device bits are always premultiplied. Look for null graphics state and matrices. R=thestig@chromium.org,dsinclair@chromium.org BUG=pdfium:532 Review-Url: https://codereview.chromium.org/2120353004
2016-06-29fix skia unit testscaryclark
Add checks to pass unit tests. R=thestig@chromium.org,dsinclair@chromium.org BUG=pdfium:525, pdfium:526, pdfium:527, pdfium:528, pdfium:529 Review-Url: https://codereview.chromium.org/2111553003
2016-06-29add local caching for skia drawscaryclark
PDFium assumes the lowest common denominator and draws many strings and paths that can be accumulated. Defer canvas->restore() calls until required because the clip changed. Defer text and path draws as long as subsequent calls concatenate additional data. Include debugging switch to allow disabling cache at compile-time while bugs are shaken out. Review-Url: https://codereview.chromium.org/2064753002
2016-06-21Move ifx_renderdevicedriver to a separate file to shareweili
Move ifx_renderdevicedriver class to its own file to share with multiple devices to reduce code duplication. Review-Url: https://codereview.chromium.org/2078783002
2016-06-20Fix clang_use_chrome_plugin for Mac and Skia buildsweili
These changes are specific to Mac and Skia builds. They are needed for these builds to compile with clang_use_chrome_plugin. BUG=pdfium:469 Review-Url: https://codereview.chromium.org/2081523002
2016-06-13Remove default arguments from IFX_RenderDeviceDriver.thestig
Review-Url: https://codereview.chromium.org/2059883004
2016-06-07Get rid of NULLs in core/thestig
Review-Url: https://codereview.chromium.org/2032613003
2016-06-02The PDFium source in core/fxge/dib implements a bit-blitting backend.caryclark
This code has several disadvantages over a more modern graphics engine: - no SIMD support - no GPU support - limited quality Further, calling this code locks in the perceived resolution, so that the output cannot be scaled without additional loss. By directing all bitmap drawing through CFX_SkiaDeviceDriver::StartDIBits, Skia can handle all appropriate bitmap optimizations. To that end, SetDIBits and StretchDIBits now call StartDIBits. Other changes: Skia's bitmaps are premultiplied. PDF contains bitmaps that are unpremultiplied. PDFium appears to use premultiplied bitmaps sometimes, and unpremultiplied bitmaps elsewhere. Add a debug check for unpremultiplied bits in Skia's driver, and add a utility to premultiply PDFium's bitmaps' bits. PDFium supports a 24 bit RGB bitmap padded to a 32 bit word. Set the high byte so that Skia can treat this as an ARGB bitmap. Defer the application of the alpha value to the draw call rather than calling MultiplyAlpha where possible. Allow the destination bitmap to be alpha 8 or argb 32. Review-Url: https://codereview.chromium.org/2025043002
2016-05-26Remove default arguments from CFX_FxgeDevice.thestig
Remove unused dithering code. Review-Url: https://codereview.chromium.org/2010813003
2016-05-26Remove default argument from RestoreState() methods.thestig
Review-Url: https://codereview.chromium.org/2009803003
2016-04-12flesh out gradient shaderscaryclark
Using these webpages as guides http://www.globelegislators.org/pdfjs/test/pdfs/alphatrans.pdf http://www.antennahouse.com/antenna1/wp-content/uploads/2015/07/background-image-gradient-1.pdf flesh out the gradient shaders to include the PostScript Type 0 sampling function and to include radial gradients. This CL makes rendering these pages agree with Adobe Reader output. Some of these examples use an Extend array to clip the gradient. Skia does not currently support this natively, so construct the clip manually for now. Other PDF pages may construct gradients using alternate mechanisms -- this code will continue to be refactored as those come to light. In particular, this CL sets up the clip and matrix differently for axial gradients and radial gradients -- while it makes sense to do it one way only, I prefer to defer until I have more examples to work with. R=dsinclair@chromium.org,tsepez@chromium.org Review URL: https://codereview.chromium.org/1870463002
2016-04-06remove agg from skia drivercaryclark
Copy code from the agg driver so that the Skia driver is no longer dependent on it. The copied code doesn't in turn call agg; it was in the agg driver for convenience. Much of the copied code will eventually be replaced by native Skia code, so there's not much point in rewriting it to make it more efficient or maintainable. R=dsinclair@chromium.org,tsepez@chromium.org Review URL: https://codereview.chromium.org/1865883002
2016-03-25Remove FX_DWORD from core/ and delete definitionchromium/2695chromium/2694chromium/2693chromium/2692tsepez
Review URL: https://codereview.chromium.org/1832173003
2016-03-25support gradients and stroke+fillcaryclark
To draw paths that are stroked and filled with a pair of colors, reduce the fill by the width of the stroke. This is implemented with path ops subtracting the resolved stroke shape from the fill shape. This permits rendering the result without requiring an offscreen bitmap. The implementation for stroke+fill requires a new entry into the graphics engine, so a bit was added to device caps for that. Extract the gradient information out of the axial gradient function descriptions, and when possible, use Skia to draw the linear gradient directly. This requires making the function descriptions non-opaque, and adding a bit to device caps for another entry into the graphics engine. BUG= Review URL: https://codereview.chromium.org/1828283002
2016-03-24fix windows build; add blend modesCary Clark
Use FreeType instead of Direct Write on Windows. Since PDFium currently uses the graphics engine to draw but not to measure, the graphics engine needs to always use FreeType to get consistent metrics. Add a translation from PDF's blend modes to Skia's xfer modes. Turn on subpixel positioning for text to get more precise glyph placement. Pass the alpha through to get proper bitmap transparency. Address earlier nits. R=dsinclair@chromium.org, tsepez@chromium.org, dsinclair Review URL: https://codereview.chromium.org/1812263002 .
2016-03-17fix paths and remove dead codeCary Clark
More Skia driver cleanup. Fix the GN build for Skia. Remove unused functions from header. Remove agg setup that is not required. Change path construction to use the SkCanvas matrix to position the path rather than converting the points directly. Draw stroked paths using Skia rather than generated the filled path. Pin the minimum stroke width to 1 px in device space to mimic PDF's stroke dropout control. Factor out flipped and non-flipped matrices. Add some debugging code. Set the bitmap filter quality to high. This helps a lot with 1 bit sources. R=dsinclair@chromium.org, dsinclair, tsepez Review URL: https://codereview.chromium.org/1806843002 .
2016-03-16Enable building pdf_use_skia in the standalone build.Dan Sinclair
This CL adds the necessary pieces so you can add pdf_use_skia=1 to GYP_DEFINES and do a standalone build. R=caryclark@google.com Review URL: https://codereview.chromium.org/1812563002 .
2016-03-14Add bitmaps and skp output to Skia portCary Clark
This is a first-cut at supporting bitmaps. Also added a --skp option to pdfium_test to generate a Skia picture file. The picture file can be loaded in Skia's SampleApp, debugger, or skiaserver to examine the generated picture. (This also includes fixes suggested in the prior Skia CL. My apologies for fat-fingers abandoning that one.) R=dsinclair@chromium.org, tsepez@chromium.org, dsinclair Review URL: https://codereview.chromium.org/1776313002 .
2016-03-14Move core/src/ up to core/.Dan Sinclair
This CL moves the core/src/ files up to core/ and fixes up the include guards, includes and build files. R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1800523005 .
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