Searched refs:tangent (Results 1 - 21 of 21) sorted by relevance

/external/skia/tests/
H A DPathMeasureTest.cpp115 SkVector tangent; local
116 REPORTER_ASSERT(reporter, meas.getPosTan(SK_ScalarHalf, &position, &tangent));
122 REPORTER_ASSERT(reporter, tangent.fX == -SK_Scalar1);
123 REPORTER_ASSERT(reporter, tangent.fY == 0);
141 REPORTER_ASSERT(reporter, meas.getPosTan(SK_ScalarHalf, &position, &tangent));
147 REPORTER_ASSERT(reporter, tangent.fX == SK_Scalar1);
148 REPORTER_ASSERT(reporter, tangent.fY == 0);
149 REPORTER_ASSERT(reporter, meas.getPosTan(2.5f, &position, &tangent));
154 REPORTER_ASSERT(reporter, tangent.fX == 0);
155 REPORTER_ASSERT(reporter, tangent
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/external/vulkan-validation-layers/libs/glm/gtx/
H A Dhanded_coordinate_space.hpp57 detail::tvec3<T, P> const & tangent,
65 detail::tvec3<T, P> const & tangent,
/external/skia/src/effects/
H A DSkDashPathEffect.cpp203 SkVector tangent = pts[1] - pts[0]; local
204 if (tangent.isZero()) {
208 tangent.scale(SkScalarInvert(length));
212 if (SkScalarNearlyEqual(SK_Scalar1, tangent.fX) ||
213 SkScalarNearlyEqual(-SK_Scalar1, tangent.fX)) {
215 } else if (SkScalarNearlyEqual(SK_Scalar1, tangent.fY) ||
216 SkScalarNearlyEqual(-SK_Scalar1, tangent.fY)) {
283 SkScalar x = pts[0].fX + tangent.fX * SkScalarHalf(clampedInitialDashLength);
284 SkScalar y = pts[0].fY + tangent.fY * SkScalarHalf(clampedInitialDashLength);
316 SkScalar x = pts[0].fX + tangent
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H A DSk1DPathEffect.cpp79 SkVector tangent; local
84 if (!meas.getPosTan(dist + sx, &pos, &tangent)) {
92 matrix.setSinCos(tangent.fY, tangent.fX, 0, 0);
H A DSkDiscretePathEffect.cpp27 static void Perterb(SkPoint* p, const SkVector& tangent, SkScalar scale) { argument
28 SkVector normal = tangent;
/external/mesa3d/src/gallium/state_trackers/vega/
H A Dbezier.h74 float *tangent);
H A Dbezier.c621 float *tangent)
623 tangent[0] = bez->x1;
624 tangent[1] = bez->y1;
625 tangent[2] = bez->x2;
626 tangent[3] = bez->y2;
628 if (null_line(tangent)) {
629 tangent[0] = bez->x1;
630 tangent[1] = bez->y1;
631 tangent[2] = bez->x3;
632 tangent[
620 bezier_start_tangent(const struct bezier *bez, float *tangent) argument
[all...]
H A Dstroker.c963 VGfloat tangent[4]; local
966 bezier_start_tangent(&bezier, tangent);
967 line_translate(tangent,
975 create_joins(stroker, prev[0], prev[1], tangent,
980 start_tangent[0] = tangent[0];
981 start_tangent[1] = tangent[1];
982 start_tangent[2] = tangent[2];
983 start_tangent[3] = tangent[3];
986 create_joins(stroker, prev[0], prev[1], tangent,
/external/skia/src/core/
H A DSkPathMeasure.cpp436 SkScalar t, SkPoint* pos, SkVector* tangent) {
443 if (tangent) {
444 tangent->setNormalize(pts[1].fX - pts[0].fX, pts[1].fY - pts[0].fY);
448 SkEvalQuadAt(pts, t, pos, tangent);
449 if (tangent) {
450 tangent->normalize();
454 SkConic(pts[0], pts[2], pts[3], pts[1].fX).evalAt(t, pos, tangent);
455 if (tangent) {
456 tangent->normalize();
460 SkEvalCubicAt(pts, t, pos, tangent, nullpt
[all...]
H A DSkScan_Hairline.cpp421 /* Extend the points in the direction of the starting or ending tangent by 1/2 unit to
423 the control point, use the next control point to create a tangent. If the curve
434 SkVector tangent;
436 tangent = *first - *++ctrl;
437 } while (tangent.isZero() && --controls > 0);
438 if (tangent.isZero()) {
439 tangent.set(1, 0);
442 tangent.normalize();
445 first->fX += tangent.fX * capOutset;
446 first->fY += tangent
[all...]
H A DSkGeometry.cpp101 void SkEvalQuadAt(const SkPoint src[3], SkScalar t, SkPoint* pt, SkVector* tangent) { argument
108 if (tangent) {
109 *tangent = SkEvalQuadTangentAt(src, t);
119 // zero tangent vector when t is 0 or 1, and the control point is equal
120 // to the end point. In this case, use the quad end points to compute the tangent.
311 SkVector* tangent, SkVector* curvature) {
318 if (tangent) {
319 // The derivative equation returns a zero tangent vector when t is 0 or 1, and the
321 // next control point or the end points to compute the tangent.
324 *tangent
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H A DSkStroke.cpp81 SkPoint fTangentStart; // a point tangent to fQuad[0]
82 SkPoint fTangentEnd; // a point tangent to fQuad[2]
207 SkPoint* tangent) const;
212 SkPoint* tangent) const;
220 SkPoint* tangent) const;
231 void setRayPts(const SkPoint& tPt, SkVector* dxy, SkPoint* onPt, SkPoint* tangent) const;
758 // compute the perpendicular point and its tangent.
760 SkPoint* tangent) const {
772 if (tangent) {
773 tangent
[all...]
H A DSkDevice.cpp325 SkVector tangent; local
331 if (!meas.getPosTan(sx, &pos, &tangent)) {
333 tangent.set(0, 0);
341 matrix.setSinCos(tangent.fY, tangent.fX);
346 dst[i].set(pos.fX - tangent.fY * sy, pos.fY + tangent.fX * sy);
H A DSkGeometry.h41 void SkEvalQuadAt(const SkPoint src[3], SkScalar t, SkPoint* pt, SkVector* tangent = nullptr);
211 * Given a t-value [0...1] return its position and/or tangent.
213 * If tangent is not null, return its tangent at the t-value. NOTE the
214 * tangent value's length is arbitrary, and only its direction should
217 void evalAt(SkScalar t, SkPoint* pos, SkVector* tangent = nullptr) const;
H A DSkPath.cpp1476 // need to know our prev pt so we can construct tangent vectors
3079 SkVector tangent; local
3080 SkEvalCubicAt(c, t, nullptr, &tangent, nullptr);
3081 tangents->push(tangent);
3245 const SkVector& tangent = tangents[last]; local
3246 if (SkScalarNearlyZero(tangent.lengthSqd())) {
3251 if (SkScalarNearlyZero(test.cross(tangent))
3252 && SkScalarSignAsInt(tangent.fX * test.fX) <= 0
3253 && SkScalarSignAsInt(tangent.fY * test.fY) <= 0) {
/external/skia/gm/
H A Dstrokes.cpp249 SkVector tangent = pts[1] - pts[2]; local
250 tangent.normalize();
254 pts2[0].fX += tangent.fX * capOutset;
255 pts2[0].fY += tangent.fY * capOutset;
256 pts2[1].fX += tangent.fX * capOutset;
257 pts2[1].fY += tangent.fY * capOutset;
258 pts2[2].fX += -tangent.fX * capOutset;
259 pts2[2].fY += -tangent.fY * capOutset;
/external/skia/include/core/
H A DSkPathMeasure.h43 the corresponding position and tangent.
45 position and tangent are unchanged.
48 SkVector* tangent);
/external/eigen/Eigen/src/Core/
H A DGlobalFunctions.h62 EIGEN_ARRAY_DECLARE_GLOBAL_UNARY(tan,scalar_tan_op,tangent,\sa ArrayBase::tan)
63 EIGEN_ARRAY_DECLARE_GLOBAL_UNARY(atan,scalar_atan_op,arc-tangent,\sa ArrayBase::atan)
68 EIGEN_ARRAY_DECLARE_GLOBAL_UNARY(tanh,scalar_tanh_op,hyperbolic tangent,\sa ArrayBase::tanh)
/external/skia/samplecode/
H A DSampleAAGeometry.cpp1117 SkVector tangent = SkEvalQuadTangentAt(pts, t);
1118 tangent.setLength(fWidthControl.fValLo * 2);
1120 maxPt.fX + tangent.fY, maxPt.fY - tangent.fX, fSkeletonPaint);
1162 SkVector tangent;
1163 SkEvalCubicAt(pts, tMax[tIndex], &maxPt, &tangent, NULL);
1164 tangent.setLength(fWidthControl.fValLo * 2);
1166 maxPt.fX + tangent.fY, maxPt.fY - tangent.fX, fSkeletonPaint);
/external/swiftshader/src/Shader/
H A DShaderCore.cpp400 Float4 tangent(RValue<Float4> x, bool pp) function in namespace:sw
1523 dst.x = tangent(src.x, pp);
1524 dst.y = tangent(src.y, pp);
1525 dst.z = tangent(src.z, pp);
1526 dst.w = tangent(src.w, pp);
H A DShaderCore.hpp100 Float4 tangent(RValue<Float4> x, bool pp = false);

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