History log of /external/skia/src/pathops/SkPathOpsQuad.cpp
Revision Date Author Comments (<<< Hide modified files) (Show modified files >>>)
4431e7757cfcb8cfa99535eed0e9f156dabf95c2 14-Apr-2014 commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Mike R: please sanity check SkPostConfig.h
Mike K: please sanity check Test.cpp and skia_test.cpp

Feel free to look at the rest, but I don't expect any in depth review of path ops innards.

Path Ops first iteration used QuickSort to order segments radiating from an intersection to compute the winding rule.

This revision uses a circular sort instead. Breaking out the circular sort into its own long-lived structure (SkOpAngle) allows doing less work and provides a home for caching additional sorting data.

The circle sort is more stable than the former sort, has a robust ordering and fewer exceptions. It finds unsortable ordering less often. It is less reliant on the initial curve tangent, using convex hulls instead whenever it can.

Additional debug validation makes sure that the computed structures are self-consistent. A new visualization tool helps verify that the angle ordering is correct.

The 70+M tests pass with this change on Windows, Mac, Linux 32 and Linux 64 in debug and release.

R=mtklein@google.com, reed@google.com

Author: caryclark@google.com

Review URL: https://codereview.chromium.org/131103009

git-svn-id: http://skia.googlecode.com/svn/trunk@14183 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkPathOpsQuad.cpp
7eaa53d8f7e48fd17d02b5e3bd91f90e9c1899ef 02-Oct-2013 caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> path ops work in progress

make more skps work

remove edit files

BUG=

Review URL: https://codereview.chromium.org/23542056

git-svn-id: http://skia.googlecode.com/svn/trunk@11570 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkPathOpsQuad.cpp
570863f2e22b8ea7d7c504bd15e4f766af097df2 16-Sep-2013 caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> path ops work in progress

path ops work in progress

BUG=

Review URL: https://codereview.chromium.org/21359002

git-svn-id: http://skia.googlecode.com/svn/trunk@11291 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkPathOpsQuad.cpp
4fdbb229649caf74e5c1b55a1823926df903af34 23-Jul-2013 caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> turn off debugging printfs

fix pathops issues 1417, 1418

be more rigorous about pulling intersections of lines to end points
rewrite cubic/line and quad/line intersections to share style

BUG=

Review URL: https://codereview.chromium.org/19543005

git-svn-id: http://skia.googlecode.com/svn/trunk@10270 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkPathOpsQuad.cpp
fa2aeee27af27f2934ee52a9732148f66481fb03 15-Jul-2013 caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> path ops near exact

Modify line intersections to first
- match exact ends
- compute intersections
- match near ends
where the exact ends are preferred, then near matches, then
computed matches. This pulls matches towards existing end points
when possible, and keeps intersection distances consistent with
different line/line line/quad and line/cubic computations.

BUG=

Review URL: https://codereview.chromium.org/19183003

git-svn-id: http://skia.googlecode.com/svn/trunk@10073 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkPathOpsQuad.cpp
8f6ef4010f6835c5ce9ede180e50a6a58512a81e 05-Jun-2013 skia.committer@gmail.com <skia.committer@gmail.com@2bbb7eff-a529-9590-31e7-b0007b416f81> Sanitizing source files in Housekeeper-Nightly

git-svn-id: http://skia.googlecode.com/svn/trunk@9440 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkPathOpsQuad.cpp
cffbcc3b9665f2c928544b6fc6b8a0e22a4210fb 04-Jun-2013 caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> path ops -- rewrite angle sort

This is a major change resulting from a minor
tweak. In the old code, the intersection point
of two curves was shared between them, but the
intersection points and end points of sorted edges was
computed directly from the intersection T value.

In this CL, both intersection points and sorted points
are the same, and intermediate control points are computed
to preserve their slope.

The sort itself has been completely rewritten to be more
robust and remove 'magic' checks, conditions that empirically
worked but couldn't be rationalized.

This CL was triggered by errors generated computing the clips
of SKP files. At this point, all 73M standard tests work and
at least the first troublesome SKPs work.

Review URL: https://codereview.chromium.org/15338003

git-svn-id: http://skia.googlecode.com/svn/trunk@9432 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkPathOpsQuad.cpp
3b97af5add04489d57c7926ba6dc6f0013daf40f 23-Apr-2013 caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> path ops -- use standard max, min, double-is-nan

fix a comment or two as well
Review URL: https://codereview.chromium.org/13934009

git-svn-id: http://skia.googlecode.com/svn/trunk@8822 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkPathOpsQuad.cpp
07393cab57ce74a4aae89a31fae9aaa9780fc19d 08-Apr-2013 caryclark@google.com <caryclark@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> Add base types for path ops

Paths contain lines, quads, and cubics, which are
collectively curves.

To work with path intersections, intermediary curves
are constructed. For now, those intermediates use
doubles to guarantee sufficient precision.

The DVector, DPoint, DLine, DQuad, and DCubic
structs encapsulate these intermediate curves.

The DRect and DTriangle structs are created to
describe intersectable areas of interest.

The Bounds struct inherits from SkRect to create
a SkScalar-based rectangle that intersects shared
edges.

This also includes common math equalities and
debugging that the remainder of path ops builds on,
as well as a temporary top-level interface in
include/pathops/SkPathOps.h.
Review URL: https://codereview.chromium.org/12827020

git-svn-id: http://skia.googlecode.com/svn/trunk@8551 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/pathops/SkPathOpsQuad.cpp