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Side by Side Diff: src/core/SkStroke.cpp

Issue 1152623005: another double square (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 5 years, 6 months ago
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1 /* 1 /*
2 * Copyright 2008 The Android Open Source Project 2 * Copyright 2008 The Android Open Source Project
3 * 3 *
4 * Use of this source code is governed by a BSD-style license that can be 4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file. 5 * found in the LICENSE file.
6 */ 6 */
7 7
8 #include "SkStrokerPriv.h" 8 #include "SkStrokerPriv.h"
9 #include "SkGeometry.h" 9 #include "SkGeometry.h"
10 #include "SkPath.h" 10 #include "SkPath.h"
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900 return false; 900 return false;
901 } 901 }
902 SkScalar dot = smaller.dot(larger); 902 SkScalar dot = smaller.dot(larger);
903 return dot > 0; 903 return dot > 0;
904 } 904 }
905 905
906 SkPathStroker::ResultType SkPathStroker::strokeCloseEnough(const SkPoint stroke[ 3], 906 SkPathStroker::ResultType SkPathStroker::strokeCloseEnough(const SkPoint stroke[ 3],
907 const SkPoint ray[2], SkQuadConstruct* quadPts STROKER_DEBUG_PARAMS(int depth)) const { 907 const SkPoint ray[2], SkQuadConstruct* quadPts STROKER_DEBUG_PARAMS(int depth)) const {
908 SkPoint strokeMid = SkEvalQuadAt(stroke, SK_ScalarHalf); 908 SkPoint strokeMid = SkEvalQuadAt(stroke, SK_ScalarHalf);
909 // measure the distance from the curve to the quad-stroke midpoint, compare to radius 909 // measure the distance from the curve to the quad-stroke midpoint, compare to radius
910 if (points_within_dist(ray[0], strokeMid, fInvResScaleSquared)) { // if the difference is small 910 if (points_within_dist(ray[0], strokeMid, fInvResScale)) { // if the differ ence is small
911 if (sharp_angle(quadPts->fQuad)) { 911 if (sharp_angle(quadPts->fQuad)) {
912 return STROKER_RESULT(kSplit_ResultType, depth, quadPts, 912 return STROKER_RESULT(kSplit_ResultType, depth, quadPts,
913 "sharp_angle (1) =%g,%g, %g,%g, %g,%g", 913 "sharp_angle (1) =%g,%g, %g,%g, %g,%g",
914 quadPts->fQuad[0].fX, quadPts->fQuad[0].fY, 914 quadPts->fQuad[0].fX, quadPts->fQuad[0].fY,
915 quadPts->fQuad[1].fX, quadPts->fQuad[1].fY, 915 quadPts->fQuad[1].fX, quadPts->fQuad[1].fY,
916 quadPts->fQuad[2].fX, quadPts->fQuad[2].fY); 916 quadPts->fQuad[2].fX, quadPts->fQuad[2].fY);
917 } 917 }
918 return STROKER_RESULT(kQuad_ResultType, depth, quadPts, 918 return STROKER_RESULT(kQuad_ResultType, depth, quadPts,
919 "points_within_dist(ray[0]=%g,%g, strokeMid=%g,%g, fInvResScaleS quared=%g)", 919 "points_within_dist(ray[0]=%g,%g, strokeMid=%g,%g, fInvResScale= %g)",
920 ray[0].fX, ray[0].fY, strokeMid.fX, strokeMid.fY, fInvResScaleSq uared); 920 ray[0].fX, ray[0].fY, strokeMid.fX, strokeMid.fY, fInvResScale);
921 } 921 }
922 // measure the distance to quad's bounds (quick reject) 922 // measure the distance to quad's bounds (quick reject)
923 // an alternative : look for point in triangle 923 // an alternative : look for point in triangle
924 if (!ptInQuadBounds(stroke, ray[0])) { // if far, subdivide 924 if (!ptInQuadBounds(stroke, ray[0])) { // if far, subdivide
925 return STROKER_RESULT(kSplit_ResultType, depth, quadPts, 925 return STROKER_RESULT(kSplit_ResultType, depth, quadPts,
926 "!pt_in_quad_bounds(stroke=(%g,%g %g,%g %g,%g), ray[0]=%g,%g)", 926 "!pt_in_quad_bounds(stroke=(%g,%g %g,%g %g,%g), ray[0]=%g,%g)",
927 stroke[0].fX, stroke[0].fY, stroke[1].fX, stroke[1].fY, stroke[2 ].fX, stroke[2].fY, 927 stroke[0].fX, stroke[0].fY, stroke[1].fX, stroke[1].fY, stroke[2 ].fX, stroke[2].fY,
928 ray[0].fX, ray[0].fY); 928 ray[0].fX, ray[0].fY);
929 } 929 }
930 // measure the curve ray distance to the quad-stroke 930 // measure the curve ray distance to the quad-stroke
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1450 default: 1450 default:
1451 break; 1451 break;
1452 } 1452 }
1453 1453
1454 if (fWidth < SkMinScalar(rw, rh) && !fDoFill) { 1454 if (fWidth < SkMinScalar(rw, rh) && !fDoFill) {
1455 r = rect; 1455 r = rect;
1456 r.inset(radius, radius); 1456 r.inset(radius, radius);
1457 dst->addRect(r, reverse_direction(dir)); 1457 dst->addRect(r, reverse_direction(dir));
1458 } 1458 }
1459 } 1459 }
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