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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
2016-04-11Fix integer issues leading to out of bounds access in fx_ge_text.cpp.ochang
- Using |-skew| to get positive index, which doesn't work when skew is INT_MIN - Incorrect logic when determining when to use |-skew| as an index. R=tsepez@chromium.org,weili@chromium.org BUG=chromium:601362 Review URL: https://codereview.chromium.org/1875673004
2016-04-11Remove IFX_AdditionalFontMgr and IFX_FontMgrDelegate.dsinclair
Neither are implemented. Removed. BUG=pdfium:468 Review URL: https://codereview.chromium.org/1872463002
2016-04-08Make converstion explicit from CFX_ByteString to uint8_t*tsepez
BUG= Review URL: https://codereview.chromium.org/1868293002
2016-04-08Rename both As{Byte,Wide}StringC() helpers to AsStringC().tsepez
The naming is redundant given the base type, and will stand in the way of consolidating Byte and Wide code. BUG= Review URL: https://codereview.chromium.org/1862123003
2016-04-06Make wide strings use StringData templatetsepez
Shuffled the order of methods in fx_basic_wstring.cpp to match those in fx_basic_bstring.cpp. The way to review this patch is to diff those two files against each other. They are beginning to converge. Re-ordered some parameters in Concat() so that the string comes before its length. It feels wrong otherwise. Review URL: https://codereview.chromium.org/1846793002
2016-04-06Remove IFX_FontEnumeratordsinclair
Interface is never implemented. BUG=pdfium:468 Review URL: https://codereview.chromium.org/1864893003
2016-04-06Move include/fxcodec to fxcodec/includedsinclair
Review URL: https://codereview.chromium.org/1864153002
2016-04-06Move core/include/fxge to core/fxge/include.dsinclair
This CL is a straight move of the fxge includes into core/fxge/include. Review URL: https://codereview.chromium.org/1868533002
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
2016-04-05Rename GetCStr and GetPtr to match CFX_ByteString.dsinclair
This CL updates CFX_ByteStringC to use the more common c_str and raw_str instead of GetCStr and GetPtr. Review URL: https://codereview.chromium.org/1857713003
2016-04-04Make down-conversion explicit from CFX_ByteString to CFX_ByteStringC.tsepez
Having this happen implicitly can be dangerous because the lifetime has to be considered; we should have caught the "red bots" in https://codereview.chromium.org/1847333004/#ps60001 at compile time. Review URL: https://codereview.chromium.org/1853233002
2016-04-04flip sense of alpha maskscaryclark
One bit bitmaps may be black and white or may be alpha masks. Treat alpha masks as transparent/opaque instead of black/white. R=dsinclair@chromium.org Review URL: https://codereview.chromium.org/1858613003
2016-04-04Support the device font cachecaryclark
Reuse the Skia typeface on sucessive text draw calls. This reduces the SKP size by 100x for some documents. Note that this does not use a smart pointer for the Skia typeface object. The downside of doing so is that it requires all clients that include fx_font.h to also have access to Skia. In this specific case, it is preferable to have a forward declared class to isolate Skia from the rest of PDFium. R=dsinclair,tsepez@chromium.org Review URL: https://codereview.chromium.org/1837113004
2016-03-31Re-enable all the windows warnings except 4267weili
The code is changed or had been changed to no longer generate these warnings. It is safe to re-enabled these warnings. In this code change, we fixed some code which generates warnings 4018 (signed/unsigned mismatch) and 4146 (unary minus operator applied to unsigned type, result still unsigned). Warning 4333 (right shift by too large amount, data loss) and 4345 (an object of POD type constructed with an initializer of the form () will be default-initialized) are no longer generated. The same setting is applied and verified for GN build as well. BUG=pdfium:29 Review URL: https://codereview.chromium.org/1849443003
2016-03-29Code change to avoid signed/unsigned mismatch warnings.Wei Li
This makes pdfium code on Linux and Mac sign-compare warning free. The warning flag will be re-enabled after checking on windows clang build. BUG=pdfium:29 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1841643002 .
2016-03-28Cleanup one mac headerWei Li
Remove unimplemented/unused class, and other cleanup R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1834063002 .
2016-03-28Reduce signed/unsigned comparison warningsWei Li
The warnings generated by Clang. This is part 1 for some simple cases. BUG=pdfium:29 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1840483003 .
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
2016-03-25Cleanup some extern method declarations.dsinclair
This CL removes _FPDFAPI_GetInternalFontData which is not implemented, FWL_PostMessageToMainRoop which has no body and the PostMessage which was the only caller. FWL_ShowCaret is moved to the only place where it's used. BUG=pdfium:112 Review URL: https://codereview.chromium.org/1827343003
2016-03-24Added bounds checking to GetNameFromTT to handle corrupt files.Tom Sepez
Patch by forshaw. This patch adds bounds checking to the names buffer passed to GetNameFromTT. There are observed crashes in this function where data is read outside of the bounds allocated and passed to GetNameFromTT. There's no reason that this function should ever try and read outside of the allocated bounds. BUG=583037 TBR=forshaw@chromium.org patch from issue 1829013002 at patchset 40001 (http://crrev.com/1829013002#ps40001) Review URL: https://codereview.chromium.org/1830243003 .
2016-03-24Remove strange integral constants for "true", "false", "%PDF".Tom Sepez
Compilers have good inline memcmp nowadays, so we don't have to resort to old tricks. Remove FXDWORD_FROM_LSBFIRST and FXDWORD_FROM_MSBFIRST while we're at it. MSBFIRST was technically wrong due to promotion to int. R=dsinclair@chromium.org Review URL: https://codereview.chromium.org/1834553002 .
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 .
2016-03-23Move core/include/fxcrt to core/fxcrt/include.Dan Sinclair
This CL moves the fxcrt code into the core/fxcrt directory. The only exception was fx_bidi.h which was moved into core/fxcrt as it is not used outside of core/. R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1825953002 .
2016-03-22Re-enable MSVC warning 4702Wei Li
BUG=pdfium:29 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1821423002 .
2016-03-21Remove FX_WORD in favor of uint16_t.Tom Sepez
It isn't buying us anthing, and it looks strange in a struct when other uint types are already present. R=dsinclair@chromium.org Review URL: https://codereview.chromium.org/1821043003 .
2016-03-21Remove unused FXDIB_PALETTE_ optionsTom Sepez
The only one that is ever used is FXDIB_PALETTE_loc, so remove the option entirely. In turn, this allows deleting about 2KB of unused constant tables. R=ochang@chromium.org Review URL: https://codereview.chromium.org/1809943007 .
2016-03-21Re-enable several MSVC warningsWei Li
Re-enable the following warnings: 4245: signed/unsigned conversion mismatch; 4310: cast may truncate data; 4389: operator on signed/unsigned mismatch; 4701: use potentially uninitialized local variable; 4706: assignment within conditional expression Clean up the code to avoid those warnings. BUG=pdfium:29 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1801383002 .
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 .
2016-03-15Remove -Wno-inconsistent-missing-override for clang-cl builds.Oliver Chang
Fix warnings in win32_int.h R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1809473002 .
2016-03-15core/include/fdpfapi cleanup Part I.Dan Sinclair
This Cl moves a bunch of the files from core/include/fpdfapi to their correct location outside the core/include tree. R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1805603002 .
2016-03-15Modify xfa code to avoid c4800 warningsWei Li
BUG=pdfium:29 R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1800793002 .
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 .
2016-03-14Add missing DEPS files; enable checkdeps.Dan Sinclair
This CL adds the needed DEPS files to make checkdeps pass correctly. The checkdeps PRESUBMIT method has been copied from Chromium and is enabled on CL upload. R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1801923002 .
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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