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* compute split conic endpoints exactlyGravatar caryclark2015-07-28
| | | | | | | | | | | | | | The divide by w can generate slightly erroneous results even for t == 0 or t == 1. The error in turn defeats detecting a point in common for a pair of curves that travel in opposite directions. Instead, special case endpoints when the t is 0 or 1. TBR=reed@google.com BUG=514118 Review URL: https://codereview.chromium.org/1259513004
* fix path ops fuzz busterGravatar caryclark2015-07-23
| | | | | | | | | | | | Mark collapsed segments as done and remove collapsed segment references from the coincidence array. Also add test names to global debugging. R=fmalita@chromium.org BUG=512592 Review URL: https://codereview.chromium.org/1250293002
* fix pathops battle testGravatar caryclark2015-07-07
| | | | | | | | | | The intermediate subtraction threw away bits causing the subsequent cross product to fail. Defer the bit truncation until after the vector is computed. TBR=reed@google.com Review URL: https://codereview.chromium.org/1226933003
* Remove SkThread.h, include SkMutex.h or SkAtomics.h as appropriate.Gravatar mtklein2015-07-07
| | | | | | | | | | | | | | SkThread.h doesn't do anything anymore execept include those two, and thankfully, it doesn't seem to be mentioned outside Skia. No public API changes. TBR=reed@google.com BUG=skia: Committed: https://skia.googlesource.com/skia/+/c50acf2321d7a934c80d754e9cbe936dfb8eb4cc Review URL: https://codereview.chromium.org/1215393002
* When three or more edges are coincident, the logic needsGravatar caryclark2015-07-06
| | | | | | | | | | | | | | | | to compute the overlapping ranges and combine the winding into a single destination. This computes coincidence more rigorously, fixing the edge cases exposed by this bug. Also, add the ability to debug and dump pathop structures from the coincident context. TBR=reed@google.com BUG=skia:3651 Review URL: https://codereview.chromium.org/1182493015
* Revert of Remove SkThread.h, include SkMutex.h or SkAtomics.h as ↵Gravatar jvanverth2015-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | appropriate. (patchset #4 id:60001 of https://codereview.chromium.org/1215393002/) Reason for revert: Breaking the roll. E.g. on android_chromium_gn_compile_dbg: FAILED: /b/build/goma/gomacc ../../third_party/android_tools/ndk/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-g++ -MMD -MF obj/skia/ext/libskia.SkMemory_new_handler.o.d -DV8_DEPRECATION_WARNINGS -DCLD_VERSION=1 -DENABLE_NOTIFICATIONS -DENABLE_BROWSER_CDMS -DENABLE_PRINTING=1 -DENABLE_BASIC_PRINTING=1 -DDONT_EMBED_BUILD_METADATA -DUSE_OPENSSL=1 -DUSE_OPENSSL_CERTS=1 -DNO_TCMALLOC -DDISABLE_NACL -DENABLE_CONFIGURATION_POLICY -DENABLE_SUPERVISED_USERS=1 -DENABLE_AUTOFILL_DIALOG=1 -DUSE_PROPRIETARY_CODECS -DV8_USE_EXTERNAL_STARTUP_DATA -DVIDEO_HOLE=1 -DMOBILE_SAFE_BROWSING -DSAFE_BROWSING_SERVICE -DCHROMIUM_BUILD -D_FILE_OFFSET_BITS=64 -DANDROID -DHAVE_SYS_UIO_H -DCOMPONENT_BUILD -D__GNU_SOURCE=1 -D_DEBUG -DDYNAMIC_ANNOTATIONS_ENABLED=1 -DWTF_USE_DYNAMIC_ANNOTATIONS=1 -DSKIA_IMPLEMENTATION=1 -DSK_ARM_HAS_OPTIONAL_NEON -DSK_GAMMA_APPLY_TO_A8 -DSK_GAMMA_EXPONENT=1.4 -DSK_GAMMA_CONTRAST=0.0 -DSK_DEFAULT_FONT_CACHE_LIMIT=1048576 -DSK_IGNORE_LINEONLY_AA_CONVEX_PATH_OPTS -DSKIA_DLL -DGR_GL_IGNORE_ES3_MSAA=0 -DSK_SUPPORT_GPU=1 -DSK_BUILD_FOR_ANDROID -DUSE_CHROMIUM_SKIA -DXML_STATIC -I../.. -Igen -I../../third_party/skia/include/private -I../../third_party/skia/src/core -I../../third_party/skia/src/image -I../../third_party/skia/src/opts -I../../third_party/skia/src/pdf -I../../third_party/skia/src/ports -I../../third_party/skia/src/sfnt -I../../third_party/skia/src/utils -I../../third_party/skia/src/lazy -I../../skia/config -I../../skia/ext -I../../third_party/skia/include/c -I../../third_party/skia/include/config -I../../third_party/skia/include/core -I../../third_party/skia/include/effects -I../../third_party/skia/include/images -I../../third_party/skia/include/lazy -I../../third_party/skia/include/pathops -I../../third_party/skia/include/pdf -I../../third_party/skia/include/pipe -I../../third_party/skia/include/ports -I../../third_party/skia/include/utils -I../../third_party/skia/include/gpu -I../../third_party/skia/src/gpu -I../../third_party/zlib -I../../third_party/expat/files/lib -I../../third_party/freetype-android/include -I../../third_party/freetype-android/src/include -I../../third_party/android_tools/ndk/sources/android/cpufeatures -fno-strict-aliasing -march=armv7-a -mfloat-abi=softfp -mtune=generic-armv7-a -mthumb -mthumb-interwork -fno-tree-sra -fno-caller-saves -funwind-tables -fPIC -pipe -ffunction-sections -funwind-tables -fno-short-enums -finline-limit=64 -mfpu=vfpv3-d16 -isystem../../third_party/android_tools/ndk/sources/cxx-stl/llvm-libc++/libcxx/include -isystem../../third_party/android_tools/ndk/sources/cxx-stl/llvm-libc++abi/libcxxabi/include -isystem../../third_party/android_tools/ndk/sources/android/support/include -fvisibility=hidden --sysroot=/b/build/slave/android_chromium_gn/build/src/third_party/android_tools/ndk/platforms/android-16/arch-arm -Os -fdata-sections -ffunction-sections -fomit-frame-pointer -g1 -Wno-format -Wendif-labels -Werror -Wno-missing-field-initializers -Wno-unused-parameter -Wno-psabi -Wno-extra -Wno-ignored-qualifiers -Wno-type-limits -Wno-unused-local-typedefs -fno-threadsafe-statics -fvisibility-inlines-hidden -std=gnu++11 -fno-rtti -fno-exceptions -Wno-deprecated -Wno-narrowing -Wno-literal-suffix -Wno-error=c++0x-compat -Wno-non-virtual-dtor -Wno-sign-promo -c ../../skia/ext/SkMemory_new_handler.cpp -o obj/skia/ext/libskia.SkMemory_new_handler.o ../../skia/ext/SkMemory_new_handler.cpp:12:52: fatal error: third_party/skia/include/core/SkThread.h: No such file or directory #include "third_party/skia/include/core/SkThread.h" Original issue's description: > Remove SkThread.h, include SkMutex.h or SkAtomics.h as appropriate. > > SkThread.h doesn't do anything anymore execept include those two, > and thankfully, it doesn't seem to be mentioned outside Skia. > > No public API changes. > TBR=reed@google.com > > BUG=skia: > > Committed: https://skia.googlesource.com/skia/+/c50acf2321d7a934c80d754e9cbe936dfb8eb4cc TBR=mtklein@chromium.org NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=skia: Review URL: https://codereview.chromium.org/1214603003
* Remove SkThread.h, include SkMutex.h or SkAtomics.h as appropriate.Gravatar mtklein2015-07-01
| | | | | | | | | | | | SkThread.h doesn't do anything anymore execept include those two, and thankfully, it doesn't seem to be mentioned outside Skia. No public API changes. TBR=reed@google.com BUG=skia: Review URL: https://codereview.chromium.org/1215393002
* don't fix winding for empty pathsGravatar caryclark2015-06-29
| | | | | | | | | | | | | | | | | | | A path can be non-empty but become empty when it is simplified. For instance, a path with the same rectangle, twice, with opposite windings. No contours are created for empty paths, so don't try to fix their winding direction. Additionally, check for a NULL coincidence since the OpBuilder assumes that no concidence edges can be present after the paths are simplified. This code should not get called, but it's worth the future-proofing to check. R=fmalita@chromium.org BUG=502792 Review URL: https://codereview.chromium.org/1218863005
* initialize firstDirGravatar caryclark2015-06-17
| | | | | | | | | | Good catch by Florin; the variable was indeed uninitialized in the complex followed by concave case. R=fmalita@google.com BUG=skia:3953 Review URL: https://codereview.chromium.org/1187273005
* SkPath::Direction serves two masters:Gravatar reed2015-06-10
| | | | | | | | | | | | | - input param to addFoo (e.g. addRect), where only CW or CCW are valid) - output param from computing functions, that sometimes return kUnknown This CL's intent is to split these into distinct enums/features: - Direction (public) loses kUnknown, and is only used for input - FirstDirection (private) is used for computing the first direction we see when analyzing a contour BUG=skia: Review URL: https://codereview.chromium.org/1176953002
* fix builder winding againGravatar caryclark2015-05-18
| | | | | | | | | | Record the nesting level when finding the edge winding contribution so that inner edges can be reversed as needed. R=fmalita@chromium.org BUG=skia:3838 Review URL: https://codereview.chromium.org/1140383002
* The path ops builder code needs to determine the winding of each contour ↵Gravatar caryclark2015-05-18
| | | | | | | | | | | | | | added, and reverse windings if the contours are nested in other contours. Cheap (one contour) paths can be evaluated and reversed as needed with a minimum of checking, but multi-contour paths invoke the regular path ops machinery to determine who is contained by whom. More tests need to be added to verify that all corner cases are considered, but this fixes the cases in the bug thus far. R=fmalita@chromium.org TBR=reed@google.com BUG=skia:3838 Review URL: https://codereview.chromium.org/1129193006
* fix path op builderGravatar caryclark2015-05-14
| | | | | | | | | | | | | | | The rewrite of path ops caused the inner contour direction to be reversed. This exposed an existing bug in path ops builder, namely that the implicit winding of the internal sum path could hide inner contours if they ended up in the wrong direction. Setting the sum path's fill type to even-odd ensures that the inner contours aren't discarded. R=fmalita@chromium.org BUG=skia:3838 Review URL: https://codereview.chromium.org/1126193004
* look for deleted pts when detecting line/curve coincident edgesGravatar caryclark2015-05-14
| | | | | | | TBR=reed@google.com BUG=skia:3651 Review URL: https://codereview.chromium.org/1129863007
* deal more consistently with unsortable edgesGravatar caryclark2015-05-13
| | | | | | | | | | | | | Improve line/curve coincident detection and resolution. This fixed the remaining simple failures. When an edge is unsortable, use the ray intersection to determine the angles' winding. Deal with degenerate segments. TBR=reed@google.com BUG=skia:3588,skia:3762 Review URL: https://codereview.chromium.org/1140813002
* Path ops formerly found the topmost unprocessed edge and determined its ↵Gravatar caryclark2015-05-11
| | | | | | | | | | | | | | | angle sort order to initialize the winding. This never worked correctly with cubics and was flaky with paths consisting mostly of vertical edges. This replacement shoots axis-aligned rays through all intersecting edges to find the outermost one either horizontally or vertically. The resulting code is smaller and twice as fast. To support this, most of the horizontal / vertical intersection code was rewritten and standardized, and old code supporting the top-directed winding was deleted. Contours were pointed to by an SkTDArray. Instead, put them in a linked list, and designate the list head with its own class to ensure that methods that take lists of contours start at the top. This change removed a large percentage of memory allocations used by path ops. TBR=reed@google.com BUG=skia:3588 Review URL: https://codereview.chromium.org/1111333002
* use pathops utils to improve precision of cubic chopping in scan converterGravatar reed2015-04-30
| | | | | | BUG=skia: Review URL: https://codereview.chromium.org/1113963002
* minor fixes to cubics code and overall alignment of how bounds and tops are ↵Gravatar caryclark2015-04-29
| | | | | | | | | | | | computed for all curve types All but 17 extended tests work. A helper function is privately added to SkPath.h to permit a test to modify a given point in a path. BUG=skia:3588 Review URL: https://codereview.chromium.org/1107353004
* fix valgrindGravatar caryclark2015-04-27
| | | | | | | TBR=mtklein@google.com BUG=skia: Review URL: https://codereview.chromium.org/1102273003
* fix multiple intersection logicGravatar caryclark2015-04-24
| | | | | | | | | | | When three or more curves intersect at the same point, ensure that each curve records the intersections of the others. This fixes a number of cubic tests. TBR=reed@google.com BUG=skia:3588 Review URL: https://codereview.chromium.org/1105943002
* working on initial winding for cubicsGravatar caryclark2015-04-23
| | | | | | | | | | | Path ops works well for all tests except for cubics. Isolate failures caused by cubics, and do a better job of computing the initial winding for cubics. TBR=reed@google.com BUG=skia:3588 Review URL: https://codereview.chromium.org/1096923003
* fix valgrind uninitialized var errorGravatar caryclark2015-04-21
| | | | | | R=mtklein@google.com Review URL: https://codereview.chromium.org/1097293002
* Now, path ops natively intersect conics, quads, and cubics in any ↵Gravatar caryclark2015-04-20
| | | | | | | | | | | combination. There are still a class of cubic tests that fail and a handful of undiagnosed failures from skps and fuzz tests, but things are much better overall. Extended tests (150M+) run to completion in release in about 6 minutes; the standard test suite exceeds 100K and finishes in a few seconds on desktops. TBR=reed BUG=skia:3588 Review URL: https://codereview.chromium.org/1037953004
* fix valgrind uninitialized issueGravatar caryclark2015-04-13
| | | | | | | R=mtklein@google.com BUG=skia:3654 Review URL: https://codereview.chromium.org/1082753002
* fix valgrind bugGravatar caryclark2015-04-06
| | | | | | | R=mtklein BUG=skia:3654 Review URL: https://codereview.chromium.org/1064663003
* add legacy pathop enums; fix uninitialized warningGravatar caryclark2015-03-26
| | | | | | | | | | R=reed@google.com BUG=skia:3588 NOTREECHECKS=true NOTRY=true NOPRESUBMIT=true Review URL: https://codereview.chromium.org/1034073004
* cumulative pathops patchGravatar caryclark2015-03-26
| | | | | | | | | | | | | | | | | | | | | Replace the implicit curve intersection with a geometric curve intersection. The implicit intersection proved mathematically unstable and took a long time to zero in on an answer. Use pointers instead of indices to refer to parts of curves. Indices required awkward renumbering. Unify t and point values so that small intervals can be eliminated in one pass. Break cubics up front to eliminate loops and cusps. Make the Simplify and Op code more regular and eliminate arbitrary differences. Add a builder that takes an array of paths and operators. Delete unused code. BUG=skia:3588 R=reed@google.com Review URL: https://codereview.chromium.org/1037573004
* Revert of pathops version two (patchset #16 id:150001 of ↵Gravatar reed2015-03-24
| | | | | | | | | | | | | | | | | | | | | | | | | https://codereview.chromium.org/1002693002/) Reason for revert: ASAN investigation Original issue's description: > pathops version two > > R=reed@google.com > > marked 'no commit' to attempt to get trybots to run > > TBR=reed@google.com > > Committed: https://skia.googlesource.com/skia/+/ccec0f958ffc71a9986d236bc2eb335cb2111119 TBR=caryclark@google.com NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true Review URL: https://codereview.chromium.org/1029993002
* Revert of fix destructor order to fix build (patchset #1 id:1 of ↵Gravatar caryclark2015-03-24
| | | | | | | | | | | | | | | | | | | | | https://codereview.chromium.org/1033703002/) Reason for revert: working on asan fix Original issue's description: > fix destructor order to fix build > > TBR=reed > > Committed: https://skia.googlesource.com/skia/+/c207f9b2e8d6fb5386197fa8a8d258d2c4603418 TBR=reed@android.com NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true Review URL: https://codereview.chromium.org/1033803002
* fix destructor order to fix buildGravatar caryclark2015-03-24
| | | | | | TBR=reed Review URL: https://codereview.chromium.org/1033703002
* pathops version twoGravatar caryclark2015-03-24
| | | | | | | | | | R=reed@google.com marked 'no commit' to attempt to get trybots to run TBR=reed@google.com Review URL: https://codereview.chromium.org/1002693002
* new files for pathops geometric intersectionGravatar caryclark2015-01-16
| | | | | | | | | | There's no gyp references to these new files, so this should only have the effect of reducing the size of the commit that turns this code on. TBR= Review URL: https://codereview.chromium.org/853223002
* fixes for conicsGravatar reed2015-01-06
| | | | | | | | | | - use std tolerance in edgebuilder, since the path has not been scaled-up to its super-sample size (that happens in the builder methods. - off-by-1 fix for pathops when using the output of the conicquadder BUG=skia: Review URL: https://codereview.chromium.org/837023002
* Revert of use conics for ovals and roundrects (patchset #1 id:1 of ↵Gravatar reed2015-01-06
| | | | | | | | | | | | | | | | | | | | | | | | https://codereview.chromium.org/817283005/) Reason for revert: need fix in edgebuilder+aa Original issue's description: > use conics for ovals and roundrects > > adapted from https://codereview.chromium.org/831313002/ > > BUG=skia: > TBR= > > Committed: https://skia.googlesource.com/skia/+/2bf1c4d58b84c73c6421edcb25e3afb4971da200 TBR=reed@chromium.org NOTREECHECKS=true NOTRY=true BUG=skia: Review URL: https://codereview.chromium.org/840573002
* use conics for ovals and roundrectsGravatar reed2015-01-05
| | | | | | | | | adapted from https://codereview.chromium.org/831313002/ BUG=skia: TBR= Review URL: https://codereview.chromium.org/817283005
* These tests stress pathops by describing the union of circle-like paths that ↵Gravatar caryclark2014-11-13
| | | | | | | | | | | | | | | | | | | have tiny line segments embedded and double back to create near-coincident conditions. The fixes include - detect when finding the active top loops between two possible answers - preflight chasing winding to ensure answer is consistent - binary search more often when quadratic intersection fails - add more failure paths when an intersect is missed While this fixes the chrome bug, reenabling path ops in svg should be deferred until additional fixes are landed. TBR= BUG=421132 Committed: https://skia.googlesource.com/skia/+/6f726addf3178b01949bb389ef83cf14a1d7b6b2 Review URL: https://codereview.chromium.org/633393002
* Revert of harden pathops for pathological test (patchset #19 id:410001 of ↵Gravatar hcm2014-10-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://codereview.chromium.org/633393002/) Reason for revert: Compile errors on bots Original issue's description: > These tests stress pathops by describing the union of circle-like paths that have tiny line segments embedded and double back to create near-coincident conditions. > > The fixes include > - detect when finding the active top loops between two possible answers > - preflight chasing winding to ensure answer is consistent > - binary search more often when quadratic intersection fails > - add more failure paths when an intersect is missed > > While this fixes the chrome bug, reenabling path ops in svg should be deferred until additional fixes are landed. > > TBR= > BUG=421132 > > Committed: https://skia.googlesource.com/skia/+/6f726addf3178b01949bb389ef83cf14a1d7b6b2 TBR=caryclark@google.com NOTREECHECKS=true NOTRY=true BUG=421132 Review URL: https://codereview.chromium.org/686843002
* These tests stress pathops by describing the union of circle-like paths that ↵Gravatar caryclark2014-10-28
| | | | | | | | | | | | | | | | | have tiny line segments embedded and double back to create near-coincident conditions. The fixes include - detect when finding the active top loops between two possible answers - preflight chasing winding to ensure answer is consistent - binary search more often when quadratic intersection fails - add more failure paths when an intersect is missed While this fixes the chrome bug, reenabling path ops in svg should be deferred until additional fixes are landed. TBR= BUG=421132 Review URL: https://codereview.chromium.org/633393002
* abort op early if path isn't parseableGravatar caryclark2014-10-03
| | | | | | | TBR= BUG=419649 Review URL: https://codereview.chromium.org/623943002
* fail on extremely large coincident curvesGravatar caryclark2014-09-29
| | | | | | | | | TBR= BUG=418381 Author: caryclark@google.com Review URL: https://codereview.chromium.org/607913007
* fail early if coincidence can't be resolvedGravatar caryclark2014-09-19
| | | | | | | | | | | | Bail out if a very large value causes coincidence resolution to fail. TBR= BUG=415866 Author: caryclark@google.com Review URL: https://codereview.chromium.org/585913002
* fix battlefield website by disallowing very small coordinatesGravatar caryclark2014-09-18
| | | | | | | | | | | also add and remove comments to document other attempts to fix this that had drawbacks R=fmalita@chromium.org BUG=414409 Author: caryclark@google.com Review URL: https://codereview.chromium.org/575553003
* fail when coincidence is too far apartGravatar caryclark2014-09-08
| | | | | | | | | TBR= BUG=410552 Author: caryclark@google.com Review URL: https://codereview.chromium.org/556433002
* add const to arrays of member functionsGravatar caryclark2014-08-25
| | | | | | | | | | | | | running 'size ./out/Release/libskia_core.a' revealed a couple of places where path ops chose poorly and declared arrays of member functions to be unnecessarily writable. R=reed@android.com TBR=reed Author: caryclark@google.com Review URL: https://codereview.chromium.org/461363003
* copy points in array that may stretchGravatar caryclark2014-08-20
| | | | | | | | | | | | | | | | | | Description: Potential SkOpSegment::addT() use-after-free The 'pt' arg can be a reference to a point stored in the local fTs TDArray => appending may cause a realloc and leave the reference pointing to deallocated mem. Copy the points from the stretchy array before adding them. R=fmalita@google.com, fmalita@chromium.org, fmalita BUG=405417 Author: caryclark@google.com Review URL: https://codereview.chromium.org/489853002
* fix pathops skp-derived bugs; add more failing testsGravatar caryclark2014-08-12
| | | | | | | | TBR= Author: caryclark@google.com Review URL: https://codereview.chromium.org/463883002
* relax quadratic binary search testGravatar caryclark2014-08-12
| | | | | | | | | | | | | | | | Extreme implicit quartic equations solve to roots that are different enough that they appear to have failed. In this case, fall back on binary searching to find an intersection. Relax the condition when this happens; don't give up just because the computed implicit root points aren't remotely the same. TBR=reed BUG=skia:2808 Author: caryclark@google.com Review URL: https://codereview.chromium.org/456383003
* update pathops core and testsGravatar caryclark2014-07-18
| | | | | | | | | | split out skpclip (the test of 1M pictures) into its own project TBR=reed Author: caryclark@google.com Review URL: https://codereview.chromium.org/400033002
* add pathops tight bounds; conform path ops' gyp to unit testsGravatar caryclark2014-06-24
| | | | | | | | | | | | | | | | | | Implement path tight bounds using path ops machinery. This is not as efficient as it could be; for instance, internally, it creates a path ops structure more suited to intersection. If this shows up as a performance bottleneck, it could be improved. Fix path ops gyp files, which have fallen out of sync with other tests. R=mtklein@google.com, bsalomon@google.com TBR=mtklein BUG=skia:1712 Author: caryclark@google.com Review URL: https://codereview.chromium.org/348343002
* Add some missing header include guardsGravatar george2014-06-20
| | | | | | | | | BUG=skia: R=reed@google.com, bsalomon@google.com, tfarina@chromium.org Author: george@mozilla.com Review URL: https://codereview.chromium.org/325843002
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