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* path ops work in progressGravatar caryclark@google.com2013-07-08
| | | | | | | | BUG= Review URL: https://codereview.chromium.org/18058007 git-svn-id: http://skia.googlecode.com/svn/trunk@9908 2bbb7eff-a529-9590-31e7-b0007b416f81
* path ops -- rewrite angle sortGravatar caryclark@google.com2013-06-04
| | | | | | | | | | | | | | | | | | | | | | | | 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
* path ops -- fix skp bugsGravatar caryclark@google.com2013-05-07
| | | | | | | | | This fixes a series of bugs discovered by running the small set of Skia skp files through pathops to flatten the clips. Review URL: https://codereview.chromium.org/14798004 git-svn-id: http://skia.googlecode.com/svn/trunk@9042 2bbb7eff-a529-9590-31e7-b0007b416f81
* path ops -- use standard max, min, double-is-nanGravatar caryclark@google.com2013-04-23
| | | | | | | 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
* path ops work in progressGravatar caryclark@google.com2013-04-15
| | | | | | | | | standardize tests use SK_ARRAY_COUNT everywhere debug why x87 differs from SIMD 64 various platform specific fixes git-svn-id: http://skia.googlecode.com/svn/trunk@8689 2bbb7eff-a529-9590-31e7-b0007b416f81
* Add base types for path opsGravatar caryclark@google.com2013-04-08
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