1/* libs/android_runtime/android/graphics/Path.cpp
2**
3** Copyright 2006, The Android Open Source Project
4**
5** Licensed under the Apache License, Version 2.0 (the "License");
6** you may not use this file except in compliance with the License.
7** You may obtain a copy of the License at
8**
9**     http://www.apache.org/licenses/LICENSE-2.0
10**
11** Unless required by applicable law or agreed to in writing, software
12** distributed under the License is distributed on an "AS IS" BASIS,
13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14** See the License for the specific language governing permissions and
15** limitations under the License.
16*/
17
18// This file was generated from the C++ include file: SkPath.h
19// Any changes made to this file will be discarded by the build.
20// To change this file, either edit the include, or device/tools/gluemaker/main.cpp,
21// or one of the auxilary file specifications in device/tools/gluemaker.
22
23#include "jni.h"
24#include "GraphicsJNI.h"
25#include <android_runtime/AndroidRuntime.h>
26
27#include "SkPath.h"
28#include "SkPathOps.h"
29
30#include <ResourceCache.h>
31#include <vector>
32#include <map>
33
34namespace android {
35
36class SkPathGlue {
37public:
38
39    static void finalizer(JNIEnv* env, jobject clazz, jlong objHandle) {
40        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
41#ifdef USE_OPENGL_RENDERER
42        if (android::uirenderer::ResourceCache::hasInstance()) {
43            android::uirenderer::ResourceCache::getInstance().destructor(obj);
44            return;
45        }
46#endif
47        delete obj;
48    }
49
50    static jlong init1(JNIEnv* env, jobject clazz) {
51        return reinterpret_cast<jlong>(new SkPath());
52    }
53
54    static jlong init2(JNIEnv* env, jobject clazz, jlong valHandle) {
55        SkPath* val = reinterpret_cast<SkPath*>(valHandle);
56        return reinterpret_cast<jlong>(new SkPath(*val));
57    }
58
59    static void reset(JNIEnv* env, jobject clazz, jlong objHandle) {
60        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
61        obj->reset();
62    }
63
64    static void rewind(JNIEnv* env, jobject clazz, jlong objHandle) {
65        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
66        obj->rewind();
67    }
68
69    static void assign(JNIEnv* env, jobject clazz, jlong dstHandle, jlong srcHandle) {
70        SkPath* dst = reinterpret_cast<SkPath*>(dstHandle);
71        const SkPath* src = reinterpret_cast<SkPath*>(srcHandle);
72        *dst = *src;
73    }
74
75    static jboolean isConvex(JNIEnv* env, jobject clazz, jlong objHandle) {
76        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
77        return obj->isConvex();
78    }
79
80    static jint getFillType(JNIEnv* env, jobject clazz, jlong objHandle) {
81        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
82        return obj->getFillType();
83    }
84
85    static void setFillType(JNIEnv* env, jobject clazz, jlong pathHandle, jint ftHandle) {
86        SkPath* path = reinterpret_cast<SkPath*>(pathHandle);
87        SkPath::FillType ft = static_cast<SkPath::FillType>(ftHandle);
88        path->setFillType(ft);
89    }
90
91    static jboolean isEmpty(JNIEnv* env, jobject clazz, jlong objHandle) {
92        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
93        return obj->isEmpty();
94    }
95
96    static jboolean isRect(JNIEnv* env, jobject clazz, jlong objHandle, jobject jrect) {
97        SkRect rect;
98        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
99        jboolean result = obj->isRect(&rect);
100        GraphicsJNI::rect_to_jrectf(rect, env, jrect);
101        return result;
102    }
103
104    static void computeBounds(JNIEnv* env, jobject clazz, jlong objHandle, jobject jbounds) {
105        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
106        const SkRect& bounds = obj->getBounds();
107        GraphicsJNI::rect_to_jrectf(bounds, env, jbounds);
108    }
109
110    static void incReserve(JNIEnv* env, jobject clazz, jlong objHandle, jint extraPtCount) {
111        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
112        obj->incReserve(extraPtCount);
113    }
114
115    static void moveTo__FF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat x, jfloat y) {
116        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
117        obj->moveTo(x, y);
118    }
119
120    static void rMoveTo(JNIEnv* env, jobject clazz, jlong objHandle, jfloat dx, jfloat dy) {
121        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
122        obj->rMoveTo(dx, dy);
123    }
124
125    static void lineTo__FF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat x, jfloat y) {
126        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
127        obj->lineTo(x, y);
128    }
129
130    static void rLineTo(JNIEnv* env, jobject clazz, jlong objHandle, jfloat dx, jfloat dy) {
131        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
132        obj->rLineTo(dx, dy);
133    }
134
135    static void quadTo__FFFF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat x1, jfloat y1, jfloat x2, jfloat y2) {
136        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
137        obj->quadTo(x1, y1, x2, y2);
138    }
139
140    static void rQuadTo(JNIEnv* env, jobject clazz, jlong objHandle, jfloat dx1, jfloat dy1, jfloat dx2, jfloat dy2) {
141        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
142        obj->rQuadTo(dx1, dy1, dx2, dy2);
143    }
144
145    static void cubicTo__FFFFFF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat x1, jfloat y1, jfloat x2, jfloat y2, jfloat x3, jfloat y3) {
146        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
147        obj->cubicTo(x1, y1, x2, y2, x3, y3);
148    }
149
150    static void rCubicTo(JNIEnv* env, jobject clazz, jlong objHandle, jfloat x1, jfloat y1, jfloat x2, jfloat y2, jfloat x3, jfloat y3) {
151        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
152        obj->rCubicTo(x1, y1, x2, y2, x3, y3);
153    }
154
155    static void arcTo(JNIEnv* env, jobject clazz, jlong objHandle, jfloat left, jfloat top,
156            jfloat right, jfloat bottom, jfloat startAngle, jfloat sweepAngle,
157            jboolean forceMoveTo) {
158        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
159        SkRect oval = SkRect::MakeLTRB(left, top, right, bottom);
160        obj->arcTo(oval, startAngle, sweepAngle, forceMoveTo);
161    }
162
163    static void close(JNIEnv* env, jobject clazz, jlong objHandle) {
164        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
165        obj->close();
166    }
167
168    static void addRect(JNIEnv* env, jobject clazz, jlong objHandle,
169            jfloat left, jfloat top, jfloat right, jfloat bottom, jint dirHandle) {
170        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
171        SkPath::Direction dir = static_cast<SkPath::Direction>(dirHandle);
172        obj->addRect(left, top, right, bottom, dir);
173    }
174
175    static void addOval(JNIEnv* env, jobject clazz, jlong objHandle,
176            jfloat left, jfloat top, jfloat right, jfloat bottom, jint dirHandle) {
177        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
178        SkPath::Direction dir = static_cast<SkPath::Direction>(dirHandle);
179        SkRect oval = SkRect::MakeLTRB(left, top, right, bottom);
180        obj->addOval(oval, dir);
181    }
182
183    static void addCircle(JNIEnv* env, jobject clazz, jlong objHandle, jfloat x, jfloat y, jfloat radius, jint dirHandle) {
184        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
185        SkPath::Direction dir = static_cast<SkPath::Direction>(dirHandle);
186        obj->addCircle(x, y, radius, dir);
187    }
188
189    static void addArc(JNIEnv* env, jobject clazz, jlong objHandle, jfloat left, jfloat top,
190            jfloat right, jfloat bottom, jfloat startAngle, jfloat sweepAngle) {
191        SkRect oval = SkRect::MakeLTRB(left, top, right, bottom);
192        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
193        obj->addArc(oval, startAngle, sweepAngle);
194    }
195
196    static void addRoundRectXY(JNIEnv* env, jobject clazz, jlong objHandle, jfloat left, jfloat top,
197            jfloat right, jfloat bottom, jfloat rx, jfloat ry, jint dirHandle) {
198        SkRect rect = SkRect::MakeLTRB(left, top, right, bottom);
199        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
200        SkPath::Direction dir = static_cast<SkPath::Direction>(dirHandle);
201        obj->addRoundRect(rect, rx, ry, dir);
202    }
203
204    static void addRoundRect8(JNIEnv* env, jobject, jlong objHandle, jfloat left, jfloat top,
205            jfloat right, jfloat bottom, jfloatArray array, jint dirHandle) {
206        SkRect rect = SkRect::MakeLTRB(left, top, right, bottom);
207        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
208        SkPath::Direction dir = static_cast<SkPath::Direction>(dirHandle);
209        AutoJavaFloatArray  afa(env, array, 8);
210#ifdef SK_SCALAR_IS_FLOAT
211        const float* src = afa.ptr();
212#else
213        #error Need to convert float array to SkScalar array before calling the following function.
214#endif
215        obj->addRoundRect(rect, src, dir);
216    }
217
218    static void addPath__PathFF(JNIEnv* env, jobject clazz, jlong objHandle, jlong srcHandle, jfloat dx, jfloat dy) {
219        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
220        SkPath* src = reinterpret_cast<SkPath*>(srcHandle);
221        obj->addPath(*src, dx, dy);
222    }
223
224    static void addPath__Path(JNIEnv* env, jobject clazz, jlong objHandle, jlong srcHandle) {
225        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
226        SkPath* src = reinterpret_cast<SkPath*>(srcHandle);
227        obj->addPath(*src);
228    }
229
230    static void addPath__PathMatrix(JNIEnv* env, jobject clazz, jlong objHandle, jlong srcHandle, jlong matrixHandle) {
231        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
232        SkPath* src = reinterpret_cast<SkPath*>(srcHandle);
233        SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
234        obj->addPath(*src, *matrix);
235    }
236
237    static void offset__FFPath(JNIEnv* env, jobject clazz, jlong objHandle, jfloat dx, jfloat dy, jlong dstHandle) {
238        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
239        SkPath* dst = reinterpret_cast<SkPath*>(dstHandle);
240        obj->offset(dx, dy, dst);
241    }
242
243    static void offset__FF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat dx, jfloat dy) {
244        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
245        obj->offset(dx, dy);
246    }
247
248    static void setLastPoint(JNIEnv* env, jobject clazz, jlong objHandle, jfloat dx, jfloat dy) {
249        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
250        obj->setLastPt(dx, dy);
251    }
252
253    static void transform__MatrixPath(JNIEnv* env, jobject clazz, jlong objHandle, jlong matrixHandle, jlong dstHandle) {
254        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
255        SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
256        SkPath* dst = reinterpret_cast<SkPath*>(dstHandle);
257        obj->transform(*matrix, dst);
258    }
259
260    static void transform__Matrix(JNIEnv* env, jobject clazz, jlong objHandle, jlong matrixHandle) {
261        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
262        SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
263        obj->transform(*matrix);
264    }
265
266    static jboolean op(JNIEnv* env, jobject clazz, jlong p1Handle, jlong p2Handle, jint opHandle, jlong rHandle) {
267        SkPath* p1  = reinterpret_cast<SkPath*>(p1Handle);
268        SkPath* p2  = reinterpret_cast<SkPath*>(p2Handle);
269        SkPathOp op = static_cast<SkPathOp>(opHandle);
270        SkPath* r   = reinterpret_cast<SkPath*>(rHandle);
271        return Op(*p1, *p2, op, r);
272     }
273
274    typedef SkPoint (*bezierCalculation)(float t, const SkPoint* points);
275
276    static void addMove(std::vector<SkPoint>& segmentPoints, std::vector<float>& lengths,
277            const SkPoint& point) {
278        float length = 0;
279        if (!lengths.empty()) {
280            length = lengths.back();
281        }
282        segmentPoints.push_back(point);
283        lengths.push_back(length);
284    }
285
286    static void addLine(std::vector<SkPoint>& segmentPoints, std::vector<float>& lengths,
287            const SkPoint& toPoint) {
288        if (segmentPoints.empty()) {
289            segmentPoints.push_back(SkPoint::Make(0, 0));
290            lengths.push_back(0);
291        } else if (segmentPoints.back() == toPoint) {
292            return; // Empty line
293        }
294        float length = lengths.back() + SkPoint::Distance(segmentPoints.back(), toPoint);
295        segmentPoints.push_back(toPoint);
296        lengths.push_back(length);
297    }
298
299    static float cubicCoordinateCalculation(float t, float p0, float p1, float p2, float p3) {
300        float oneMinusT = 1 - t;
301        float oneMinusTSquared = oneMinusT * oneMinusT;
302        float oneMinusTCubed = oneMinusTSquared * oneMinusT;
303        float tSquared = t * t;
304        float tCubed = tSquared * t;
305        return (oneMinusTCubed * p0) + (3 * oneMinusTSquared * t * p1)
306                + (3 * oneMinusT * tSquared * p2) + (tCubed * p3);
307    }
308
309    static SkPoint cubicBezierCalculation(float t, const SkPoint* points) {
310        float x = cubicCoordinateCalculation(t, points[0].x(), points[1].x(),
311            points[2].x(), points[3].x());
312        float y = cubicCoordinateCalculation(t, points[0].y(), points[1].y(),
313            points[2].y(), points[3].y());
314        return SkPoint::Make(x, y);
315    }
316
317    static float quadraticCoordinateCalculation(float t, float p0, float p1, float p2) {
318        float oneMinusT = 1 - t;
319        return oneMinusT * ((oneMinusT * p0) + (t * p1)) + t * ((oneMinusT * p1) + (t * p2));
320    }
321
322    static SkPoint quadraticBezierCalculation(float t, const SkPoint* points) {
323        float x = quadraticCoordinateCalculation(t, points[0].x(), points[1].x(), points[2].x());
324        float y = quadraticCoordinateCalculation(t, points[0].y(), points[1].y(), points[2].y());
325        return SkPoint::Make(x, y);
326    }
327
328    // Subdivide a section of the Bezier curve, set the mid-point and the mid-t value.
329    // Returns true if further subdivision is necessary as defined by errorSquared.
330    static bool subdividePoints(const SkPoint* points, bezierCalculation bezierFunction,
331            float t0, const SkPoint &p0, float t1, const SkPoint &p1,
332            float& midT, SkPoint &midPoint, float errorSquared) {
333        midT = (t1 + t0) / 2;
334        float midX = (p1.x() + p0.x()) / 2;
335        float midY = (p1.y() + p0.y()) / 2;
336
337        midPoint = (*bezierFunction)(midT, points);
338        float xError = midPoint.x() - midX;
339        float yError = midPoint.y() - midY;
340        float midErrorSquared = (xError * xError) + (yError * yError);
341        return midErrorSquared > errorSquared;
342    }
343
344    // Divides Bezier curves until linear interpolation is very close to accurate, using
345    // errorSquared as a metric. Cubic Bezier curves can have an inflection point that improperly
346    // short-circuit subdivision. If you imagine an S shape, the top and bottom points being the
347    // starting and end points, linear interpolation would mark the center where the curve places
348    // the point. It is clearly not the case that we can linearly interpolate at that point.
349    // doubleCheckDivision forces a second examination between subdivisions to ensure that linear
350    // interpolation works.
351    static void addBezier(const SkPoint* points,
352            bezierCalculation bezierFunction, std::vector<SkPoint>& segmentPoints,
353            std::vector<float>& lengths, float errorSquared, bool doubleCheckDivision) {
354        typedef std::map<float, SkPoint> PointMap;
355        PointMap tToPoint;
356
357        tToPoint[0] = (*bezierFunction)(0, points);
358        tToPoint[1] = (*bezierFunction)(1, points);
359
360        PointMap::iterator iter = tToPoint.begin();
361        PointMap::iterator next = iter;
362        ++next;
363        while (next != tToPoint.end()) {
364            bool needsSubdivision = true;
365            SkPoint midPoint;
366            do {
367                float midT;
368                needsSubdivision = subdividePoints(points, bezierFunction, iter->first,
369                    iter->second, next->first, next->second, midT, midPoint, errorSquared);
370                if (!needsSubdivision && doubleCheckDivision) {
371                    SkPoint quarterPoint;
372                    float quarterT;
373                    needsSubdivision = subdividePoints(points, bezierFunction, iter->first,
374                        iter->second, midT, midPoint, quarterT, quarterPoint, errorSquared);
375                    if (needsSubdivision) {
376                        // Found an inflection point. No need to double-check.
377                        doubleCheckDivision = false;
378                    }
379                }
380                if (needsSubdivision) {
381                    next = tToPoint.insert(iter, PointMap::value_type(midT, midPoint));
382                }
383            } while (needsSubdivision);
384            iter = next;
385            next++;
386        }
387
388        // Now that each division can use linear interpolation with less than the allowed error
389        for (iter = tToPoint.begin(); iter != tToPoint.end(); ++iter) {
390            addLine(segmentPoints, lengths, iter->second);
391        }
392    }
393
394    static void createVerbSegments(SkPath::Verb verb, const SkPoint* points,
395        std::vector<SkPoint>& segmentPoints, std::vector<float>& lengths, float errorSquared) {
396        switch (verb) {
397            case SkPath::kMove_Verb:
398                addMove(segmentPoints, lengths, points[0]);
399                break;
400            case SkPath::kClose_Verb:
401                addLine(segmentPoints, lengths, points[0]);
402                break;
403            case SkPath::kLine_Verb:
404                addLine(segmentPoints, lengths, points[1]);
405                break;
406            case SkPath::kQuad_Verb:
407                addBezier(points, quadraticBezierCalculation, segmentPoints, lengths,
408                    errorSquared, false);
409                break;
410            case SkPath::kCubic_Verb:
411                addBezier(points, cubicBezierCalculation, segmentPoints, lengths,
412                    errorSquared, true);
413                break;
414            default:
415                // Leave element as NULL, Conic sections are not supported.
416                break;
417        }
418    }
419
420    // Returns a float[] with each point along the path represented by 3 floats
421    // * fractional length along the path that the point resides
422    // * x coordinate
423    // * y coordinate
424    // Note that more than one point may have the same length along the path in
425    // the case of a move.
426    // NULL can be returned if the Path is empty.
427    static jfloatArray approximate(JNIEnv* env, jclass, jlong pathHandle, float acceptableError)
428    {
429        SkPath* path = reinterpret_cast<SkPath*>(pathHandle);
430        SkASSERT(path);
431        SkPath::Iter pathIter(*path, false);
432        SkPath::Verb verb;
433        SkPoint points[4];
434        std::vector<SkPoint> segmentPoints;
435        std::vector<float> lengths;
436        float errorSquared = acceptableError * acceptableError;
437
438        while ((verb = pathIter.next(points, false)) != SkPath::kDone_Verb) {
439            createVerbSegments(verb, points, segmentPoints, lengths, errorSquared);
440        }
441
442        if (segmentPoints.empty()) {
443            int numVerbs = path->countVerbs();
444            if (numVerbs == 1) {
445                addMove(segmentPoints, lengths, path->getPoint(0));
446            } else {
447                // Invalid or empty path. Fall back to point(0,0)
448                addMove(segmentPoints, lengths, SkPoint());
449            }
450        }
451
452        float totalLength = lengths.back();
453        if (totalLength == 0) {
454            // Lone Move instructions should still be able to animate at the same value.
455            segmentPoints.push_back(segmentPoints.back());
456            lengths.push_back(1);
457            totalLength = 1;
458        }
459
460        size_t numPoints = segmentPoints.size();
461        size_t approximationArraySize = numPoints * 3;
462
463        float* approximation = new float[approximationArraySize];
464
465        int approximationIndex = 0;
466        for (size_t i = 0; i < numPoints; i++) {
467            const SkPoint& point = segmentPoints[i];
468            approximation[approximationIndex++] = lengths[i] / totalLength;
469            approximation[approximationIndex++] = point.x();
470            approximation[approximationIndex++] = point.y();
471        }
472
473        jfloatArray result = env->NewFloatArray(approximationArraySize);
474        env->SetFloatArrayRegion(result, 0, approximationArraySize, approximation);
475        delete[] approximation;
476        return result;
477    }
478};
479
480static JNINativeMethod methods[] = {
481    {"finalizer", "(J)V", (void*) SkPathGlue::finalizer},
482    {"init1","()J", (void*) SkPathGlue::init1},
483    {"init2","(J)J", (void*) SkPathGlue::init2},
484    {"native_reset","(J)V", (void*) SkPathGlue::reset},
485    {"native_rewind","(J)V", (void*) SkPathGlue::rewind},
486    {"native_set","(JJ)V", (void*) SkPathGlue::assign},
487    {"native_isConvex","(J)Z", (void*) SkPathGlue::isConvex},
488    {"native_getFillType","(J)I", (void*) SkPathGlue::getFillType},
489    {"native_setFillType","(JI)V", (void*) SkPathGlue::setFillType},
490    {"native_isEmpty","(J)Z", (void*) SkPathGlue::isEmpty},
491    {"native_isRect","(JLandroid/graphics/RectF;)Z", (void*) SkPathGlue::isRect},
492    {"native_computeBounds","(JLandroid/graphics/RectF;)V", (void*) SkPathGlue::computeBounds},
493    {"native_incReserve","(JI)V", (void*) SkPathGlue::incReserve},
494    {"native_moveTo","(JFF)V", (void*) SkPathGlue::moveTo__FF},
495    {"native_rMoveTo","(JFF)V", (void*) SkPathGlue::rMoveTo},
496    {"native_lineTo","(JFF)V", (void*) SkPathGlue::lineTo__FF},
497    {"native_rLineTo","(JFF)V", (void*) SkPathGlue::rLineTo},
498    {"native_quadTo","(JFFFF)V", (void*) SkPathGlue::quadTo__FFFF},
499    {"native_rQuadTo","(JFFFF)V", (void*) SkPathGlue::rQuadTo},
500    {"native_cubicTo","(JFFFFFF)V", (void*) SkPathGlue::cubicTo__FFFFFF},
501    {"native_rCubicTo","(JFFFFFF)V", (void*) SkPathGlue::rCubicTo},
502    {"native_arcTo","(JFFFFFFZ)V", (void*) SkPathGlue::arcTo},
503    {"native_close","(J)V", (void*) SkPathGlue::close},
504    {"native_addRect","(JFFFFI)V", (void*) SkPathGlue::addRect},
505    {"native_addOval","(JFFFFI)V", (void*) SkPathGlue::addOval},
506    {"native_addCircle","(JFFFI)V", (void*) SkPathGlue::addCircle},
507    {"native_addArc","(JFFFFFF)V", (void*) SkPathGlue::addArc},
508    {"native_addRoundRect","(JFFFFFFI)V", (void*) SkPathGlue::addRoundRectXY},
509    {"native_addRoundRect","(JFFFF[FI)V", (void*) SkPathGlue::addRoundRect8},
510    {"native_addPath","(JJFF)V", (void*) SkPathGlue::addPath__PathFF},
511    {"native_addPath","(JJ)V", (void*) SkPathGlue::addPath__Path},
512    {"native_addPath","(JJJ)V", (void*) SkPathGlue::addPath__PathMatrix},
513    {"native_offset","(JFFJ)V", (void*) SkPathGlue::offset__FFPath},
514    {"native_offset","(JFF)V", (void*) SkPathGlue::offset__FF},
515    {"native_setLastPoint","(JFF)V", (void*) SkPathGlue::setLastPoint},
516    {"native_transform","(JJJ)V", (void*) SkPathGlue::transform__MatrixPath},
517    {"native_transform","(JJ)V", (void*) SkPathGlue::transform__Matrix},
518    {"native_op","(JJIJ)Z", (void*) SkPathGlue::op},
519    {"native_approximate", "(JF)[F", (void*) SkPathGlue::approximate},
520};
521
522int register_android_graphics_Path(JNIEnv* env) {
523    int result = AndroidRuntime::registerNativeMethods(env, "android/graphics/Path", methods,
524        sizeof(methods) / sizeof(methods[0]));
525    return result;
526}
527
528}
529