| 1297ecfd1d1efaeee41153e491b160228ba4345a |
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24-Feb-2015 |
caryclark <caryclark@google.com> |
flip stroke to chrome compatible define
Review URL: https://codereview.chromium.org/932723003
/external/skia/src/core/SkStroke.h
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| 04e4d08556750ff6be4576a4cd4925964c63376f |
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20-Feb-2015 |
caryclark <caryclark@google.com> |
This uses quad approximations of the outer and inner paths describing a stroke. Cubics and conics' thick strokes are approximated with quads as well.
The approximation uses a similar error term as the fill scan converter to determine the number of quads to use.
This also updates SampleApp QuadStroker test with conics, ovals, and stroked text.
Review URL: https://codereview.chromium.org/932113002
/external/skia/src/core/SkStroke.h
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| 05d9044de4f1c6e791df66a425638752daac4c6b |
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12-Feb-2015 |
reed <reed@google.com> |
optional res-scale parameter to getFillPath
BUG=skia:
NOTREECHECKS=True
TBR=
Review URL: https://codereview.chromium.org/911053005
/external/skia/src/core/SkStroke.h
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| feff7d2d7719f52c7ea52db156003e609002bf04 |
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09-Oct-2014 |
caryclark <caryclark@google.com> |
Draw more accurate thick-stroked Beziers (disabled)
Draw thick-stroked Beziers by computing the outset quadratic, measuring the error, and subdividing until the error is within a predetermined limit.
To try this CL out, change src/core/SkStroke.h:18 to
#define QUAD_STROKE_APPROXIMATION 1
or from the command line: CPPFLAGS="-D QUAD_STROKE_APPROXIMATION=1" ./gyp_skia
Here's what's in this CL:
bench/BezierBench.cpp : a microbench for examining where the time is going
gm/beziers.cpp : random Beziers with various thicknesses
gm/smallarc.cpp : a distillation of bug skia:2769
samplecode/SampleRotateCircles.cpp : controls added for error, limit, width
src/core/SkStroke.cpp : the new stroke implementation (disabled)
tests/StrokerTest.cpp : a stroke torture test that checks normal and extreme values
The new stroke algorithm has a tweakable parameter:
stroker.setError(1); (SkStrokeRec.cpp:112)
The stroke error is the allowable gap between the midpoint of the stroke quadratic and the center Bezier. As the projection from the quadratic approaches the endpoints, the error is decreased proportionally so that it is always inside the quadratic curve.
An overview of how this works:
- For a given T range of a Bezier, compute the perpendiculars and find the points outset and inset for some radius.
- Construct tangents for the quadratic stroke.
- If the tangent don't intersect between them (may happen with cubics), subdivide.
- If the quadratic stroke end points are close (again, may happen with cubics), draw a line between them.
- Compute the quadratic formed by the intersecting tangents.
- If the midpoint of the quadratic is close to the midpoint of the Bezier perpendicular, return the quadratic.
- If the end of the stroke at the Bezier midpoint doesn't intersect the quad's bounds, subdivide.
- Find where the Bezier midpoint ray intersects the quadratic.
- If the intersection is too close to the quad's endpoints, subdivide.
- If the error is large proportional to the intersection's distance to the quad's endpoints, subdivide.
BUG=skia:723,skia:2769
Review URL: https://codereview.chromium.org/558163005
/external/skia/src/core/SkStroke.h
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| e16efc1882ab34a0bb3ae361a2d37f840044cf87 |
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26-Jan-2013 |
skia.committer@gmail.com <skia.committer@gmail.com@2bbb7eff-a529-9590-31e7-b0007b416f81> |
Sanitizing source files in Skia_Periodic_House_Keeping
git-svn-id: http://skia.googlecode.com/svn/trunk@7406 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/core/SkStroke.h
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| 5f74cf8c49701f514b69dc6f1a8b5c0ffd78af0a |
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17-Dec-2012 |
sugoi@google.com <sugoi@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> |
Follow up on the previous patch :
- Moved the SkStrokeRec class in its own file
- Replaced SkStroke by SkStrokeRec in Ganesh
- Moved path stroking to the Ganesh level in some cases (everytime it isn't required to do it directly in SkGpuDevice). PathEffect and MaskFilter still require path stroking at the SkGpuDevice for now.
- Renamed static functions in SkPath with proper names
* No functionality shold have changed with this patch. This is a step towards enabling Ganesh Path Renderers to decide whether or not to stroke the path rather than always receiving the stroked path as an input argument.
BUG=chromium:135111
TEST=Try path rendering tests from the gm
Review URL: https://codereview.appspot.com/6946072
git-svn-id: http://skia.googlecode.com/svn/trunk@6861 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/core/SkStroke.h
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| 12b4e27ae1a29460e91a59f38122483e1faec697 |
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06-Dec-2012 |
sugoi@google.com <sugoi@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> |
As part of preliminary groundwork for a chromium fix, this changelist is deprecating GrPathFill so that SkPath::FillType is used everywhere in order to remove some code duplication between Skia and Ganesh.
BUG=chromium:135111
TEST=Try path rendering tests from the gm
Review URL: https://codereview.appspot.com/6875058
git-svn-id: http://skia.googlecode.com/svn/trunk@6693 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/core/SkStroke.h
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| 04fdaa1afed8687a3b15226ddebcb798c94ddac5 |
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21-Nov-2012 |
reed@google.com <reed@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> |
use direction from isRect in strokeRect, and only stroke if it is closed
Review URL: https://codereview.appspot.com/6846086
git-svn-id: http://skia.googlecode.com/svn/trunk@6528 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/core/SkStroke.h
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| 603dbedf293839e6707e2d4dfdd3949b06f9762c |
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20-Nov-2012 |
reed@google.com <reed@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> |
add specialty strokeRect() to SkStroke, which can return much cleaner results
Review URL: https://codereview.appspot.com/6843093
git-svn-id: http://skia.googlecode.com/svn/trunk@6510 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/core/SkStroke.h
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| 58b8d4a7a861604474f77875e0236da271cac81c |
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03-May-2012 |
epoger@google.com <epoger@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> |
recreate http://codereview.appspot.com/6131051/ in svn instead of git
Review URL: https://codereview.appspot.com/6181044
git-svn-id: http://skia.googlecode.com/svn/trunk@3829 2bbb7eff-a529-9590-31e7-b0007b416f81
/external/skia/src/core/SkStroke.h
|