1 /* libs/android_runtime/android/graphics/Matrix.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 #include "jni.h"
19 #include "GraphicsJNI.h"
20 #include <core_jni_helpers.h>
21
22 #include "SkMatrix.h"
23 #include "SkTemplates.h"
24
25 #include "Matrix.h"
26
27 #include <Caches.h>
28
29 namespace android {
30
31 class SkMatrixGlue {
32 public:
33
finalizer(JNIEnv * env,jobject clazz,jlong objHandle)34 static void finalizer(JNIEnv* env, jobject clazz, jlong objHandle) {
35 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
36 delete obj;
37 }
38
create(JNIEnv * env,jobject clazz,jlong srcHandle)39 static jlong create(JNIEnv* env, jobject clazz, jlong srcHandle) {
40 const SkMatrix* src = reinterpret_cast<SkMatrix*>(srcHandle);
41 SkMatrix* obj = new SkMatrix();
42 if (src)
43 *obj = *src;
44 else
45 obj->reset();
46 return reinterpret_cast<jlong>(obj);
47 }
48
isIdentity(JNIEnv * env,jobject clazz,jlong objHandle)49 static jboolean isIdentity(JNIEnv* env, jobject clazz, jlong objHandle) {
50 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
51 return obj->isIdentity() ? JNI_TRUE : JNI_FALSE;
52 }
53
isAffine(JNIEnv * env,jobject clazz,jlong objHandle)54 static jboolean isAffine(JNIEnv* env, jobject clazz, jlong objHandle) {
55 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
56 return obj->asAffine(NULL) ? JNI_TRUE : JNI_FALSE;
57 }
58
rectStaysRect(JNIEnv * env,jobject clazz,jlong objHandle)59 static jboolean rectStaysRect(JNIEnv* env, jobject clazz, jlong objHandle) {
60 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
61 return obj->rectStaysRect() ? JNI_TRUE : JNI_FALSE;
62 }
63
reset(JNIEnv * env,jobject clazz,jlong objHandle)64 static void reset(JNIEnv* env, jobject clazz, jlong objHandle) {
65 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
66 obj->reset();
67 }
set(JNIEnv * env,jobject clazz,jlong objHandle,jlong otherHandle)68 static void set(JNIEnv* env, jobject clazz, jlong objHandle, jlong otherHandle) {
69 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
70 SkMatrix* other = reinterpret_cast<SkMatrix*>(otherHandle);
71 *obj = *other;
72 }
setTranslate(JNIEnv * env,jobject clazz,jlong objHandle,jfloat dx,jfloat dy)73 static void setTranslate(JNIEnv* env, jobject clazz, jlong objHandle, jfloat dx, jfloat dy) {
74 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
75 obj->setTranslate(dx, dy);
76 }
setScale__FFFF(JNIEnv * env,jobject clazz,jlong objHandle,jfloat sx,jfloat sy,jfloat px,jfloat py)77 static void setScale__FFFF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat sx, jfloat sy, jfloat px, jfloat py) {
78 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
79 obj->setScale(sx, sy, px, py);
80 }
setScale__FF(JNIEnv * env,jobject clazz,jlong objHandle,jfloat sx,jfloat sy)81 static void setScale__FF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat sx, jfloat sy) {
82 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
83 obj->setScale(sx, sy);
84 }
setRotate__FFF(JNIEnv * env,jobject clazz,jlong objHandle,jfloat degrees,jfloat px,jfloat py)85 static void setRotate__FFF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat degrees, jfloat px, jfloat py) {
86 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
87 obj->setRotate(degrees, px, py);
88 }
setRotate__F(JNIEnv * env,jobject clazz,jlong objHandle,jfloat degrees)89 static void setRotate__F(JNIEnv* env, jobject clazz, jlong objHandle, jfloat degrees) {
90 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
91 obj->setRotate(degrees);
92 }
setSinCos__FFFF(JNIEnv * env,jobject clazz,jlong objHandle,jfloat sinValue,jfloat cosValue,jfloat px,jfloat py)93 static void setSinCos__FFFF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat sinValue, jfloat cosValue, jfloat px, jfloat py) {
94 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
95 obj->setSinCos(sinValue, cosValue, px, py);
96 }
setSinCos__FF(JNIEnv * env,jobject clazz,jlong objHandle,jfloat sinValue,jfloat cosValue)97 static void setSinCos__FF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat sinValue, jfloat cosValue) {
98 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
99 obj->setSinCos(sinValue, cosValue);
100 }
setSkew__FFFF(JNIEnv * env,jobject clazz,jlong objHandle,jfloat kx,jfloat ky,jfloat px,jfloat py)101 static void setSkew__FFFF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat kx, jfloat ky, jfloat px, jfloat py) {
102 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
103 obj->setSkew(kx, ky, px, py);
104 }
setSkew__FF(JNIEnv * env,jobject clazz,jlong objHandle,jfloat kx,jfloat ky)105 static void setSkew__FF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat kx, jfloat ky) {
106 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
107 obj->setSkew(kx, ky);
108 }
setConcat(JNIEnv * env,jobject clazz,jlong objHandle,jlong aHandle,jlong bHandle)109 static void setConcat(JNIEnv* env, jobject clazz, jlong objHandle, jlong aHandle, jlong bHandle) {
110 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
111 SkMatrix* a = reinterpret_cast<SkMatrix*>(aHandle);
112 SkMatrix* b = reinterpret_cast<SkMatrix*>(bHandle);
113 obj->setConcat(*a, *b);
114 }
115
preTranslate(JNIEnv * env,jobject clazz,jlong objHandle,jfloat dx,jfloat dy)116 static void preTranslate(JNIEnv* env, jobject clazz, jlong objHandle, jfloat dx, jfloat dy) {
117 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
118 obj->preTranslate(dx, dy);
119 }
120
preScale__FFFF(JNIEnv * env,jobject clazz,jlong objHandle,jfloat sx,jfloat sy,jfloat px,jfloat py)121 static void preScale__FFFF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat sx, jfloat sy, jfloat px, jfloat py) {
122 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
123 obj->preScale(sx, sy, px, py);
124 }
125
preScale__FF(JNIEnv * env,jobject clazz,jlong objHandle,jfloat sx,jfloat sy)126 static void preScale__FF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat sx, jfloat sy) {
127 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
128 obj->preScale(sx, sy);
129 }
130
preRotate__FFF(JNIEnv * env,jobject clazz,jlong objHandle,jfloat degrees,jfloat px,jfloat py)131 static void preRotate__FFF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat degrees, jfloat px, jfloat py) {
132 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
133 obj->preRotate(degrees, px, py);
134 }
135
preRotate__F(JNIEnv * env,jobject clazz,jlong objHandle,jfloat degrees)136 static void preRotate__F(JNIEnv* env, jobject clazz, jlong objHandle, jfloat degrees) {
137 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
138 obj->preRotate(degrees);
139 }
140
preSkew__FFFF(JNIEnv * env,jobject clazz,jlong objHandle,jfloat kx,jfloat ky,jfloat px,jfloat py)141 static void preSkew__FFFF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat kx, jfloat ky, jfloat px, jfloat py) {
142 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
143 obj->preSkew(kx, ky, px, py);
144 }
145
preSkew__FF(JNIEnv * env,jobject clazz,jlong objHandle,jfloat kx,jfloat ky)146 static void preSkew__FF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat kx, jfloat ky) {
147 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
148 obj->preSkew(kx, ky);
149 }
150
preConcat(JNIEnv * env,jobject clazz,jlong objHandle,jlong otherHandle)151 static void preConcat(JNIEnv* env, jobject clazz, jlong objHandle, jlong otherHandle) {
152 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
153 SkMatrix* other = reinterpret_cast<SkMatrix*>(otherHandle);
154 obj->preConcat(*other);
155 }
156
postTranslate(JNIEnv * env,jobject clazz,jlong objHandle,jfloat dx,jfloat dy)157 static void postTranslate(JNIEnv* env, jobject clazz, jlong objHandle, jfloat dx, jfloat dy) {
158 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
159 obj->postTranslate(dx, dy);
160 }
161
postScale__FFFF(JNIEnv * env,jobject clazz,jlong objHandle,jfloat sx,jfloat sy,jfloat px,jfloat py)162 static void postScale__FFFF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat sx, jfloat sy, jfloat px, jfloat py) {
163 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
164 obj->postScale(sx, sy, px, py);
165 }
166
postScale__FF(JNIEnv * env,jobject clazz,jlong objHandle,jfloat sx,jfloat sy)167 static void postScale__FF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat sx, jfloat sy) {
168 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
169 obj->postScale(sx, sy);
170 }
171
postRotate__FFF(JNIEnv * env,jobject clazz,jlong objHandle,jfloat degrees,jfloat px,jfloat py)172 static void postRotate__FFF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat degrees, jfloat px, jfloat py) {
173 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
174 obj->postRotate(degrees, px, py);
175 }
176
postRotate__F(JNIEnv * env,jobject clazz,jlong objHandle,jfloat degrees)177 static void postRotate__F(JNIEnv* env, jobject clazz, jlong objHandle, jfloat degrees) {
178 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
179 obj->postRotate(degrees);
180 }
181
postSkew__FFFF(JNIEnv * env,jobject clazz,jlong objHandle,jfloat kx,jfloat ky,jfloat px,jfloat py)182 static void postSkew__FFFF(JNIEnv* env, jobject clazz, jlong objHandle, jfloat kx, jfloat ky, jfloat px, jfloat py) {
183 SkMatrix* obj = reinterpret_cast<SkMatrix*>(objHandle);
184 obj->postSkew(kx, ky, px, py);
185 }
186
postSkew__FF(JNIEnv * env,jobject clazz,jlong matrixHandle,jfloat kx,jfloat ky)187 static void postSkew__FF(JNIEnv* env, jobject clazz, jlong matrixHandle, jfloat kx, jfloat ky) {
188 SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
189 matrix->postSkew(kx, ky);
190 }
191
postConcat(JNIEnv * env,jobject clazz,jlong matrixHandle,jlong otherHandle)192 static void postConcat(JNIEnv* env, jobject clazz, jlong matrixHandle, jlong otherHandle) {
193 SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
194 SkMatrix* other = reinterpret_cast<SkMatrix*>(otherHandle);
195 matrix->postConcat(*other);
196 }
197
setRectToRect(JNIEnv * env,jobject clazz,jlong matrixHandle,jobject src,jobject dst,jint stfHandle)198 static jboolean setRectToRect(JNIEnv* env, jobject clazz, jlong matrixHandle, jobject src, jobject dst, jint stfHandle) {
199 SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
200 SkMatrix::ScaleToFit stf = static_cast<SkMatrix::ScaleToFit>(stfHandle);
201 SkRect src_;
202 GraphicsJNI::jrectf_to_rect(env, src, &src_);
203 SkRect dst_;
204 GraphicsJNI::jrectf_to_rect(env, dst, &dst_);
205 return matrix->setRectToRect(src_, dst_, stf) ? JNI_TRUE : JNI_FALSE;
206 }
207
setPolyToPoly(JNIEnv * env,jobject clazz,jlong matrixHandle,jfloatArray jsrc,jint srcIndex,jfloatArray jdst,jint dstIndex,jint ptCount)208 static jboolean setPolyToPoly(JNIEnv* env, jobject clazz, jlong matrixHandle,
209 jfloatArray jsrc, jint srcIndex,
210 jfloatArray jdst, jint dstIndex, jint ptCount) {
211 SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
212 SkASSERT(srcIndex >= 0);
213 SkASSERT(dstIndex >= 0);
214 SkASSERT((unsigned)ptCount <= 4);
215
216 AutoJavaFloatArray autoSrc(env, jsrc, srcIndex + (ptCount << 1), kRO_JNIAccess);
217 AutoJavaFloatArray autoDst(env, jdst, dstIndex + (ptCount << 1), kRW_JNIAccess);
218 float* src = autoSrc.ptr() + srcIndex;
219 float* dst = autoDst.ptr() + dstIndex;
220 bool result;
221
222 #ifdef SK_SCALAR_IS_FLOAT
223 result = matrix->setPolyToPoly((const SkPoint*)src, (const SkPoint*)dst,
224 ptCount);
225 #else
226 SkASSERT(false);
227 #endif
228 return result ? JNI_TRUE : JNI_FALSE;
229 }
230
invert(JNIEnv * env,jobject clazz,jlong matrixHandle,jlong inverseHandle)231 static jboolean invert(JNIEnv* env, jobject clazz, jlong matrixHandle, jlong inverseHandle) {
232 SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
233 SkMatrix* inverse = reinterpret_cast<SkMatrix*>(inverseHandle);
234 return matrix->invert(inverse);
235 }
236
mapPoints(JNIEnv * env,jobject clazz,jlong matrixHandle,jfloatArray dst,jint dstIndex,jfloatArray src,jint srcIndex,jint ptCount,jboolean isPts)237 static void mapPoints(JNIEnv* env, jobject clazz, jlong matrixHandle,
238 jfloatArray dst, jint dstIndex,
239 jfloatArray src, jint srcIndex,
240 jint ptCount, jboolean isPts) {
241 SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
242 SkASSERT(ptCount >= 0);
243 AutoJavaFloatArray autoSrc(env, src, srcIndex + (ptCount << 1), kRO_JNIAccess);
244 AutoJavaFloatArray autoDst(env, dst, dstIndex + (ptCount << 1), kRW_JNIAccess);
245 float* srcArray = autoSrc.ptr() + srcIndex;
246 float* dstArray = autoDst.ptr() + dstIndex;
247 #ifdef SK_SCALAR_IS_FLOAT
248 if (isPts)
249 matrix->mapPoints((SkPoint*)dstArray, (const SkPoint*)srcArray,
250 ptCount);
251 else
252 matrix->mapVectors((SkVector*)dstArray, (const SkVector*)srcArray,
253 ptCount);
254 #else
255 SkASSERT(false);
256 #endif
257 }
258
mapRect__RectFRectF(JNIEnv * env,jobject clazz,jlong matrixHandle,jobjectArray dst,jobject src)259 static jboolean mapRect__RectFRectF(JNIEnv* env, jobject clazz, jlong matrixHandle, jobjectArray dst, jobject src) {
260 SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
261 SkRect dst_, src_;
262 GraphicsJNI::jrectf_to_rect(env, src, &src_);
263 jboolean rectStaysRect = matrix->mapRect(&dst_, src_);
264 GraphicsJNI::rect_to_jrectf(dst_, env, dst);
265 return rectStaysRect ? JNI_TRUE : JNI_FALSE;
266 }
267
mapRadius(JNIEnv * env,jobject clazz,jlong matrixHandle,jfloat radius)268 static jfloat mapRadius(JNIEnv* env, jobject clazz, jlong matrixHandle, jfloat radius) {
269 SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
270 float result;
271 result = SkScalarToFloat(matrix->mapRadius(radius));
272 return static_cast<jfloat>(result);
273 }
getValues(JNIEnv * env,jobject clazz,jlong matrixHandle,jfloatArray values)274 static void getValues(JNIEnv* env, jobject clazz, jlong matrixHandle, jfloatArray values) {
275 SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
276 AutoJavaFloatArray autoValues(env, values, 9, kRW_JNIAccess);
277 float* dst = autoValues.ptr();
278 #ifdef SK_SCALAR_IS_FLOAT
279 for (int i = 0; i < 9; i++) {
280 dst[i] = matrix->get(i);
281 }
282 #else
283 SkASSERT(false);
284 #endif
285 }
286
setValues(JNIEnv * env,jobject clazz,jlong matrixHandle,jfloatArray values)287 static void setValues(JNIEnv* env, jobject clazz, jlong matrixHandle, jfloatArray values) {
288 SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixHandle);
289 AutoJavaFloatArray autoValues(env, values, 9, kRO_JNIAccess);
290 const float* src = autoValues.ptr();
291
292 #ifdef SK_SCALAR_IS_FLOAT
293 for (int i = 0; i < 9; i++) {
294 matrix->set(i, src[i]);
295 }
296 #else
297 SkASSERT(false);
298 #endif
299 }
300
equals(JNIEnv * env,jobject clazz,jlong aHandle,jlong bHandle)301 static jboolean equals(JNIEnv* env, jobject clazz, jlong aHandle, jlong bHandle) {
302 const SkMatrix* a = reinterpret_cast<SkMatrix*>(aHandle);
303 const SkMatrix* b = reinterpret_cast<SkMatrix*>(bHandle);
304 return *a == *b;
305 }
306 };
307
308 static JNINativeMethod methods[] = {
309 {"finalizer", "(J)V", (void*) SkMatrixGlue::finalizer},
310 {"native_create","(J)J", (void*) SkMatrixGlue::create},
311
312 {"native_isIdentity","!(J)Z", (void*) SkMatrixGlue::isIdentity},
313 {"native_isAffine","!(J)Z", (void*) SkMatrixGlue::isAffine},
314 {"native_rectStaysRect","!(J)Z", (void*) SkMatrixGlue::rectStaysRect},
315 {"native_reset","!(J)V", (void*) SkMatrixGlue::reset},
316 {"native_set","!(JJ)V", (void*) SkMatrixGlue::set},
317 {"native_setTranslate","!(JFF)V", (void*) SkMatrixGlue::setTranslate},
318 {"native_setScale","!(JFFFF)V", (void*) SkMatrixGlue::setScale__FFFF},
319 {"native_setScale","!(JFF)V", (void*) SkMatrixGlue::setScale__FF},
320 {"native_setRotate","!(JFFF)V", (void*) SkMatrixGlue::setRotate__FFF},
321 {"native_setRotate","!(JF)V", (void*) SkMatrixGlue::setRotate__F},
322 {"native_setSinCos","!(JFFFF)V", (void*) SkMatrixGlue::setSinCos__FFFF},
323 {"native_setSinCos","!(JFF)V", (void*) SkMatrixGlue::setSinCos__FF},
324 {"native_setSkew","!(JFFFF)V", (void*) SkMatrixGlue::setSkew__FFFF},
325 {"native_setSkew","!(JFF)V", (void*) SkMatrixGlue::setSkew__FF},
326 {"native_setConcat","!(JJJ)V", (void*) SkMatrixGlue::setConcat},
327 {"native_preTranslate","!(JFF)V", (void*) SkMatrixGlue::preTranslate},
328 {"native_preScale","!(JFFFF)V", (void*) SkMatrixGlue::preScale__FFFF},
329 {"native_preScale","!(JFF)V", (void*) SkMatrixGlue::preScale__FF},
330 {"native_preRotate","!(JFFF)V", (void*) SkMatrixGlue::preRotate__FFF},
331 {"native_preRotate","!(JF)V", (void*) SkMatrixGlue::preRotate__F},
332 {"native_preSkew","!(JFFFF)V", (void*) SkMatrixGlue::preSkew__FFFF},
333 {"native_preSkew","!(JFF)V", (void*) SkMatrixGlue::preSkew__FF},
334 {"native_preConcat","!(JJ)V", (void*) SkMatrixGlue::preConcat},
335 {"native_postTranslate","!(JFF)V", (void*) SkMatrixGlue::postTranslate},
336 {"native_postScale","!(JFFFF)V", (void*) SkMatrixGlue::postScale__FFFF},
337 {"native_postScale","!(JFF)V", (void*) SkMatrixGlue::postScale__FF},
338 {"native_postRotate","!(JFFF)V", (void*) SkMatrixGlue::postRotate__FFF},
339 {"native_postRotate","!(JF)V", (void*) SkMatrixGlue::postRotate__F},
340 {"native_postSkew","!(JFFFF)V", (void*) SkMatrixGlue::postSkew__FFFF},
341 {"native_postSkew","!(JFF)V", (void*) SkMatrixGlue::postSkew__FF},
342 {"native_postConcat","!(JJ)V", (void*) SkMatrixGlue::postConcat},
343 {"native_setRectToRect","!(JLandroid/graphics/RectF;Landroid/graphics/RectF;I)Z", (void*) SkMatrixGlue::setRectToRect},
344 {"native_setPolyToPoly","!(J[FI[FII)Z", (void*) SkMatrixGlue::setPolyToPoly},
345 {"native_invert","!(JJ)Z", (void*) SkMatrixGlue::invert},
346 {"native_mapPoints","!(J[FI[FIIZ)V", (void*) SkMatrixGlue::mapPoints},
347 {"native_mapRect","!(JLandroid/graphics/RectF;Landroid/graphics/RectF;)Z", (void*) SkMatrixGlue::mapRect__RectFRectF},
348 {"native_mapRadius","!(JF)F", (void*) SkMatrixGlue::mapRadius},
349 {"native_getValues","!(J[F)V", (void*) SkMatrixGlue::getValues},
350 {"native_setValues","!(J[F)V", (void*) SkMatrixGlue::setValues},
351 {"native_equals", "!(JJ)Z", (void*) SkMatrixGlue::equals}
352 };
353
354 static jfieldID sNativeInstanceField;
355
register_android_graphics_Matrix(JNIEnv * env)356 int register_android_graphics_Matrix(JNIEnv* env) {
357 int result = RegisterMethodsOrDie(env, "android/graphics/Matrix", methods, NELEM(methods));
358
359 jclass clazz = FindClassOrDie(env, "android/graphics/Matrix");
360 sNativeInstanceField = GetFieldIDOrDie(env, clazz, "native_instance", "J");
361
362 return result;
363 }
364
android_graphics_Matrix_getSkMatrix(JNIEnv * env,jobject matrixObj)365 SkMatrix* android_graphics_Matrix_getSkMatrix(JNIEnv* env, jobject matrixObj) {
366 return reinterpret_cast<SkMatrix*>(env->GetLongField(matrixObj, sNativeInstanceField));
367 }
368
369 }
370