Path.cpp revision 7979388d4f7d5d9dbfcf7e1cc4709f8088c034ae 
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 <Caches.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::Caches::hasInstance()) {
43            android::uirenderer::Caches::getInstance().resourceCache.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, jobject oval, jfloat startAngle, jfloat sweepAngle, jboolean forceMoveTo) {
156        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
157        SkRect oval_;
158        GraphicsJNI::jrectf_to_rect(env, oval, &oval_);
159        obj->arcTo(oval_, startAngle, sweepAngle, forceMoveTo);
160    }
161
162    static void close(JNIEnv* env, jobject clazz, jlong objHandle) {
163        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
164        obj->close();
165    }
166
167    static void addRect(JNIEnv* env, jobject clazz, jlong objHandle,
168            jfloat left, jfloat top, jfloat right, jfloat bottom, jint dirHandle) {
169        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
170        SkPath::Direction dir = static_cast<SkPath::Direction>(dirHandle);
171        obj->addRect(left, top, right, bottom, dir);
172    }
173
174    static void addOval(JNIEnv* env, jobject clazz, jlong objHandle,
175            jfloat left, jfloat top, jfloat right, jfloat bottom, jint dirHandle) {
176        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
177        SkPath::Direction dir = static_cast<SkPath::Direction>(dirHandle);
178        SkRect oval = SkRect::MakeLTRB(left, top, right, bottom);
179        obj->addOval(oval, dir);
180    }
181
182    static void addCircle(JNIEnv* env, jobject clazz, jlong objHandle, jfloat x, jfloat y, jfloat radius, jint dirHandle) {
183        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
184        SkPath::Direction dir = static_cast<SkPath::Direction>(dirHandle);
185        obj->addCircle(x, y, radius, dir);
186    }
187
188    static void addArc(JNIEnv* env, jobject clazz, jlong objHandle, jobject oval, jfloat startAngle, jfloat sweepAngle) {
189        SkRect oval_;
190        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
191        GraphicsJNI::jrectf_to_rect(env, oval, &oval_);
192        obj->addArc(oval_, startAngle, sweepAngle);
193    }
194
195    static void addRoundRectXY(JNIEnv* env, jobject clazz, jlong objHandle, jobject jrect,
196            jfloat rx, jfloat ry, jint dirHandle) {
197        SkRect rect;
198        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
199        SkPath::Direction dir = static_cast<SkPath::Direction>(dirHandle);
200        GraphicsJNI::jrectf_to_rect(env, jrect, &rect);
201        obj->addRoundRect(rect, rx, ry, dir);
202    }
203
204    static void addRoundRect8(JNIEnv* env, jobject, jlong objHandle, jobject jrect,
205            jfloatArray array, jint dirHandle) {
206        SkRect rect;
207        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
208        SkPath::Direction dir = static_cast<SkPath::Direction>(dirHandle);
209        GraphicsJNI::jrectf_to_rect(env, jrect, &rect);
210        AutoJavaFloatArray  afa(env, array, 8);
211#ifdef SK_SCALAR_IS_FLOAT
212        const float* src = afa.ptr();
213#else
214        #error Need to convert float array to SkScalar array before calling the following function.
215#endif
216        obj->addRoundRect(rect, src, dir);
217    }
218
219    static void addPath__PathFF(JNIEnv* env, jobject clazz, jlong objHandle, jlong srcHandle, jfloat dx, jfloat dy) {
220        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
221        SkPath* src = reinterpret_cast<SkPath*>(srcHandle);
222        obj->addPath(*src, dx, dy);
223    }
224
225    static void addPath__Path(JNIEnv* env, jobject clazz, jlong objHandle, jlong srcHandle) {
226        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
227        SkPath* src = reinterpret_cast<SkPath*>(srcHandle);
228        obj->addPath(*src);
229    }
230
231    static void addPath__PathMatrix(JNIEnv* env, jobject clazz, jlong objHandle, jlong srcHandle, jlong matrixHandle) {
232        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
233        SkPath* src = reinterpret_cast<SkPath*>(srcHandle);
234        SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
235        obj->addPath(*src, *matrix);
236    }
237
238    static void offset__FFPath(JNIEnv* env, jobject clazz, jlong objHandle, jfloat dx, jfloat dy, jlong dstHandle) {
239        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
240        SkPath* dst = reinterpret_cast<SkPath*>(dstHandle);
241        obj->offset(dx, dy, dst);
242    }
243
244    static void offset__FF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat dx, jfloat dy) {
245        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
246        obj->offset(dx, dy);
247    }
248
249    static void setLastPoint(JNIEnv* env, jobject clazz, jlong objHandle, jfloat dx, jfloat dy) {
250        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
251        obj->setLastPt(dx, dy);
252    }
253
254    static void transform__MatrixPath(JNIEnv* env, jobject clazz, jlong objHandle, jlong matrixHandle, jlong dstHandle) {
255        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
256        SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
257        SkPath* dst = reinterpret_cast<SkPath*>(dstHandle);
258        obj->transform(*matrix, dst);
259    }
260
261    static void transform__Matrix(JNIEnv* env, jobject clazz, jlong objHandle, jlong matrixHandle) {
262        SkPath* obj = reinterpret_cast<SkPath*>(objHandle);
263        SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
264        obj->transform(*matrix);
265    }
266
267    static jboolean op(JNIEnv* env, jobject clazz, jlong p1Handle, jlong p2Handle, jint opHandle, jlong rHandle) {
268        SkPath* p1  = reinterpret_cast<SkPath*>(p1Handle);
269        SkPath* p2  = reinterpret_cast<SkPath*>(p2Handle);
270        SkPathOp op = static_cast<SkPathOp>(opHandle);
271        SkPath* r   = reinterpret_cast<SkPath*>(rHandle);
272        return Op(*p1, *p2, op, r);
273     }
274
275    typedef SkPoint (*bezierCalculation)(float t, const SkPoint* points);
276
277    static void addMove(std::vector<SkPoint>& segmentPoints, std::vector<float>& lengths,
278            const SkPoint& point) {
279        float length = 0;
280        if (!lengths.empty()) {
281            length = lengths.back();
282        }
283        segmentPoints.push_back(point);
284        lengths.push_back(length);
285    }
286
287    static void addLine(std::vector<SkPoint>& segmentPoints, std::vector<float>& lengths,
288            const SkPoint& toPoint) {
289        if (segmentPoints.empty()) {
290            segmentPoints.push_back(SkPoint::Make(0, 0));
291            lengths.push_back(0);
292        } else if (segmentPoints.back() == toPoint) {
293            return; // Empty line
294        }
295        float length = lengths.back() + SkPoint::Distance(segmentPoints.back(), toPoint);
296        segmentPoints.push_back(toPoint);
297        lengths.push_back(length);
298    }
299
300    static float cubicCoordinateCalculation(float t, float p0, float p1, float p2, float p3) {
301        float oneMinusT = 1 - t;
302        float oneMinusTSquared = oneMinusT * oneMinusT;
303        float oneMinusTCubed = oneMinusTSquared * oneMinusT;
304        float tSquared = t * t;
305        float tCubed = tSquared * t;
306        return (oneMinusTCubed * p0) + (3 * oneMinusTSquared * t * p1)
307                + (3 * oneMinusT * tSquared * p2) + (tCubed * p3);
308    }
309
310    static SkPoint cubicBezierCalculation(float t, const SkPoint* points) {
311        float x = cubicCoordinateCalculation(t, points[0].x(), points[1].x(),
312            points[2].x(), points[3].x());
313        float y = cubicCoordinateCalculation(t, points[0].y(), points[1].y(),
314            points[2].y(), points[3].y());
315        return SkPoint::Make(x, y);
316    }
317
318    static float quadraticCoordinateCalculation(float t, float p0, float p1, float p2) {
319        float oneMinusT = 1 - t;
320        return oneMinusT * ((oneMinusT * p0) + (t * p1)) + t * ((oneMinusT * p1) + (t * p2));
321    }
322
323    static SkPoint quadraticBezierCalculation(float t, const SkPoint* points) {
324        float x = quadraticCoordinateCalculation(t, points[0].x(), points[1].x(), points[2].x());
325        float y = quadraticCoordinateCalculation(t, points[0].y(), points[1].y(), points[2].y());
326        return SkPoint::Make(x, y);
327    }
328
329    // Subdivide a section of the Bezier curve, set the mid-point and the mid-t value.
330    // Returns true if further subdivision is necessary as defined by errorSquared.
331    static bool subdividePoints(const SkPoint* points, bezierCalculation bezierFunction,
332            float t0, const SkPoint &p0, float t1, const SkPoint &p1,
333            float& midT, SkPoint &midPoint, float errorSquared) {
334        midT = (t1 + t0) / 2;
335        float midX = (p1.x() + p0.x()) / 2;
336        float midY = (p1.y() + p0.y()) / 2;
337
338        midPoint = (*bezierFunction)(midT, points);
339        float xError = midPoint.x() - midX;
340        float yError = midPoint.y() - midY;
341        float midErrorSquared = (xError * xError) + (yError * yError);
342        return midErrorSquared > errorSquared;
343    }
344
345    // Divides Bezier curves until linear interpolation is very close to accurate, using
346    // errorSquared as a metric. Cubic Bezier curves can have an inflection point that improperly
347    // short-circuit subdivision. If you imagine an S shape, the top and bottom points being the
348    // starting and end points, linear interpolation would mark the center where the curve places
349    // the point. It is clearly not the case that we can linearly interpolate at that point.
350    // doubleCheckDivision forces a second examination between subdivisions to ensure that linear
351    // interpolation works.
352    static void addBezier(const SkPoint* points,
353            bezierCalculation bezierFunction, std::vector<SkPoint>& segmentPoints,
354            std::vector<float>& lengths, float errorSquared, bool doubleCheckDivision) {
355        typedef std::map<float, SkPoint> PointMap;
356        PointMap tToPoint;
357
358        tToPoint[0] = (*bezierFunction)(0, points);
359        tToPoint[1] = (*bezierFunction)(1, points);
360
361        PointMap::iterator iter = tToPoint.begin();
362        PointMap::iterator next = iter;
363        ++next;
364        while (next != tToPoint.end()) {
365            bool needsSubdivision = true;
366            SkPoint midPoint;
367            do {
368                float midT;
369                needsSubdivision = subdividePoints(points, bezierFunction, iter->first,
370                    iter->second, next->first, next->second, midT, midPoint, errorSquared);
371                if (!needsSubdivision && doubleCheckDivision) {
372                    SkPoint quarterPoint;
373                    float quarterT;
374                    needsSubdivision = subdividePoints(points, bezierFunction, iter->first,
375                        iter->second, midT, midPoint, quarterT, quarterPoint, errorSquared);
376                    if (needsSubdivision) {
377                        // Found an inflection point. No need to double-check.
378                        doubleCheckDivision = false;
379                    }
380                }
381                if (needsSubdivision) {
382                    next = tToPoint.insert(iter, PointMap::value_type(midT, midPoint));
383                }
384            } while (needsSubdivision);
385            iter = next;
386            next++;
387        }
388
389        // Now that each division can use linear interpolation with less than the allowed error
390        for (iter = tToPoint.begin(); iter != tToPoint.end(); ++iter) {
391            addLine(segmentPoints, lengths, iter->second);
392        }
393    }
394
395    static void createVerbSegments(SkPath::Verb verb, const SkPoint* points,
396        std::vector<SkPoint>& segmentPoints, std::vector<float>& lengths, float errorSquared) {
397        switch (verb) {
398            case SkPath::kMove_Verb:
399                addMove(segmentPoints, lengths, points[0]);
400                break;
401            case SkPath::kClose_Verb:
402                addLine(segmentPoints, lengths, points[0]);
403                break;
404            case SkPath::kLine_Verb:
405                addLine(segmentPoints, lengths, points[1]);
406                break;
407            case SkPath::kQuad_Verb:
408                addBezier(points, quadraticBezierCalculation, segmentPoints, lengths,
409                    errorSquared, false);
410                break;
411            case SkPath::kCubic_Verb:
412                addBezier(points, cubicBezierCalculation, segmentPoints, lengths,
413                    errorSquared, true);
414                break;
415            default:
416                // Leave element as NULL, Conic sections are not supported.
417                break;
418        }
419    }
420
421    // Returns a float[] with each point along the path represented by 3 floats
422    // * fractional length along the path that the point resides
423    // * x coordinate
424    // * y coordinate
425    // Note that more than one point may have the same length along the path in
426    // the case of a move.
427    // NULL can be returned if the Path is empty.
428    static jfloatArray approximate(JNIEnv* env, jclass, jlong pathHandle, float acceptableError)
429    {
430        SkPath* path = reinterpret_cast<SkPath*>(pathHandle);
431        SkASSERT(path);
432        SkPath::Iter pathIter(*path, false);
433        SkPath::Verb verb;
434        SkPoint points[4];
435        std::vector<SkPoint> segmentPoints;
436        std::vector<float> lengths;
437        float errorSquared = acceptableError * acceptableError;
438
439        while ((verb = pathIter.next(points)) != SkPath::kDone_Verb) {
440            createVerbSegments(verb, points, segmentPoints, lengths, errorSquared);
441        }
442
443        if (segmentPoints.empty()) {
444            return NULL;
445        }
446
447        size_t numPoints = segmentPoints.size();
448        size_t approximationArraySize = numPoints * 3;
449
450        float* approximation = new float[approximationArraySize];
451        float totalLength = lengths.back();
452
453        int approximationIndex = 0;
454        for (size_t i = 0; i < numPoints; i++) {
455            const SkPoint& point = segmentPoints[i];
456            approximation[approximationIndex++] = lengths[i] / totalLength;
457            approximation[approximationIndex++] = point.x();
458            approximation[approximationIndex++] = point.y();
459        }
460
461        jfloatArray result = env->NewFloatArray(approximationArraySize);
462        env->SetFloatArrayRegion(result, 0, approximationArraySize, approximation);
463        delete[] approximation;
464        return result;
465    }
466};
467
468static JNINativeMethod methods[] = {
469    {"finalizer", "(J)V", (void*) SkPathGlue::finalizer},
470    {"init1","()J", (void*) SkPathGlue::init1},
471    {"init2","(J)J", (void*) SkPathGlue::init2},
472    {"native_reset","(J)V", (void*) SkPathGlue::reset},
473    {"native_rewind","(J)V", (void*) SkPathGlue::rewind},
474    {"native_set","(JJ)V", (void*) SkPathGlue::assign},
475    {"native_isConvex","(J)Z", (void*) SkPathGlue::isConvex},
476    {"native_getFillType","(J)I", (void*) SkPathGlue::getFillType},
477    {"native_setFillType","(JI)V", (void*) SkPathGlue::setFillType},
478    {"native_isEmpty","(J)Z", (void*) SkPathGlue::isEmpty},
479    {"native_isRect","(JLandroid/graphics/RectF;)Z", (void*) SkPathGlue::isRect},
480    {"native_computeBounds","(JLandroid/graphics/RectF;)V", (void*) SkPathGlue::computeBounds},
481    {"native_incReserve","(JI)V", (void*) SkPathGlue::incReserve},
482    {"native_moveTo","(JFF)V", (void*) SkPathGlue::moveTo__FF},
483    {"native_rMoveTo","(JFF)V", (void*) SkPathGlue::rMoveTo},
484    {"native_lineTo","(JFF)V", (void*) SkPathGlue::lineTo__FF},
485    {"native_rLineTo","(JFF)V", (void*) SkPathGlue::rLineTo},
486    {"native_quadTo","(JFFFF)V", (void*) SkPathGlue::quadTo__FFFF},
487    {"native_rQuadTo","(JFFFF)V", (void*) SkPathGlue::rQuadTo},
488    {"native_cubicTo","(JFFFFFF)V", (void*) SkPathGlue::cubicTo__FFFFFF},
489    {"native_rCubicTo","(JFFFFFF)V", (void*) SkPathGlue::rCubicTo},
490    {"native_arcTo","(JLandroid/graphics/RectF;FFZ)V", (void*) SkPathGlue::arcTo},
491    {"native_close","(J)V", (void*) SkPathGlue::close},
492    {"native_addRect","(JFFFFI)V", (void*) SkPathGlue::addRect},
493    {"native_addOval","(JFFFFI)V", (void*) SkPathGlue::addOval},
494    {"native_addCircle","(JFFFI)V", (void*) SkPathGlue::addCircle},
495    {"native_addArc","(JLandroid/graphics/RectF;FF)V", (void*) SkPathGlue::addArc},
496    {"native_addRoundRect","(JLandroid/graphics/RectF;FFI)V", (void*) SkPathGlue::addRoundRectXY},
497    {"native_addRoundRect","(JLandroid/graphics/RectF;[FI)V", (void*) SkPathGlue::addRoundRect8},
498    {"native_addPath","(JJFF)V", (void*) SkPathGlue::addPath__PathFF},
499    {"native_addPath","(JJ)V", (void*) SkPathGlue::addPath__Path},
500    {"native_addPath","(JJJ)V", (void*) SkPathGlue::addPath__PathMatrix},
501    {"native_offset","(JFFJ)V", (void*) SkPathGlue::offset__FFPath},
502    {"native_offset","(JFF)V", (void*) SkPathGlue::offset__FF},
503    {"native_setLastPoint","(JFF)V", (void*) SkPathGlue::setLastPoint},
504    {"native_transform","(JJJ)V", (void*) SkPathGlue::transform__MatrixPath},
505    {"native_transform","(JJ)V", (void*) SkPathGlue::transform__Matrix},
506    {"native_op","(JJIJ)Z", (void*) SkPathGlue::op},
507    {"native_approximate", "(JF)[F", (void*) SkPathGlue::approximate},
508};
509
510int register_android_graphics_Path(JNIEnv* env) {
511    int result = AndroidRuntime::registerNativeMethods(env, "android/graphics/Path", methods,
512        sizeof(methods) / sizeof(methods[0]));
513    return result;
514}
515
516}
517