Matrix.cpp revision 9066cfe9886ac131c34d59ed0e2d287b0e3c0087 
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// This file was generated from the C++ include file: SkMatrix.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 "SkMatrix.h"
28#include "SkTemplates.h"
29
30namespace android {
31
32class SkMatrixGlue {
33public:
34
35    static void finalizer(JNIEnv* env, jobject clazz, SkMatrix* obj) {
36        delete obj;
37    }
38
39    static SkMatrix* create(JNIEnv* env, jobject clazz, const SkMatrix* src) {
40        SkMatrix* obj = new SkMatrix();
41        if (src)
42            *obj = *src;
43        else
44            obj->reset();
45        return obj;
46    }
47
48    static jboolean isIdentity(JNIEnv* env, jobject clazz, SkMatrix* obj) {
49        return obj->isIdentity();
50    }
51
52    static jboolean rectStaysRect(JNIEnv* env, jobject clazz, SkMatrix* obj) {
53        return obj->rectStaysRect();
54    }
55
56    static void reset(JNIEnv* env, jobject clazz, SkMatrix* obj) {
57        obj->reset();
58    }
59
60    static void set(JNIEnv* env, jobject clazz, SkMatrix* obj, SkMatrix* other) {
61        *obj = *other;
62    }
63
64    static void setTranslate(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat dx, jfloat dy) {
65        SkScalar dx_ = SkFloatToScalar(dx);
66        SkScalar dy_ = SkFloatToScalar(dy);
67        obj->setTranslate(dx_, dy_);
68    }
69
70    static void setScale__FFFF(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat sx, jfloat sy, jfloat px, jfloat py) {
71        SkScalar sx_ = SkFloatToScalar(sx);
72        SkScalar sy_ = SkFloatToScalar(sy);
73        SkScalar px_ = SkFloatToScalar(px);
74        SkScalar py_ = SkFloatToScalar(py);
75        obj->setScale(sx_, sy_, px_, py_);
76    }
77
78    static void setScale__FF(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat sx, jfloat sy) {
79        SkScalar sx_ = SkFloatToScalar(sx);
80        SkScalar sy_ = SkFloatToScalar(sy);
81        obj->setScale(sx_, sy_);
82    }
83
84    static void setRotate__FFF(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat degrees, jfloat px, jfloat py) {
85        SkScalar degrees_ = SkFloatToScalar(degrees);
86        SkScalar px_ = SkFloatToScalar(px);
87        SkScalar py_ = SkFloatToScalar(py);
88        obj->setRotate(degrees_, px_, py_);
89    }
90
91    static void setRotate__F(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat degrees) {
92        SkScalar degrees_ = SkFloatToScalar(degrees);
93        obj->setRotate(degrees_);
94    }
95
96    static void setSinCos__FFFF(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat sinValue, jfloat cosValue, jfloat px, jfloat py) {
97        SkScalar sinValue_ = SkFloatToScalar(sinValue);
98        SkScalar cosValue_ = SkFloatToScalar(cosValue);
99        SkScalar px_ = SkFloatToScalar(px);
100        SkScalar py_ = SkFloatToScalar(py);
101        obj->setSinCos(sinValue_, cosValue_, px_, py_);
102    }
103
104    static void setSinCos__FF(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat sinValue, jfloat cosValue) {
105        SkScalar sinValue_ = SkFloatToScalar(sinValue);
106        SkScalar cosValue_ = SkFloatToScalar(cosValue);
107        obj->setSinCos(sinValue_, cosValue_);
108    }
109
110    static void setSkew__FFFF(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat kx, jfloat ky, jfloat px, jfloat py) {
111        SkScalar kx_ = SkFloatToScalar(kx);
112        SkScalar ky_ = SkFloatToScalar(ky);
113        SkScalar px_ = SkFloatToScalar(px);
114        SkScalar py_ = SkFloatToScalar(py);
115        obj->setSkew(kx_, ky_, px_, py_);
116    }
117
118    static void setSkew__FF(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat kx, jfloat ky) {
119        SkScalar kx_ = SkFloatToScalar(kx);
120        SkScalar ky_ = SkFloatToScalar(ky);
121        obj->setSkew(kx_, ky_);
122    }
123
124    static jboolean setConcat(JNIEnv* env, jobject clazz, SkMatrix* obj, SkMatrix* a, SkMatrix* b) {
125        return obj->setConcat(*a, *b);
126    }
127
128    static jboolean preTranslate(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat dx, jfloat dy) {
129        SkScalar dx_ = SkFloatToScalar(dx);
130        SkScalar dy_ = SkFloatToScalar(dy);
131        return obj->preTranslate(dx_, dy_);
132    }
133
134    static jboolean preScale__FFFF(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat sx, jfloat sy, jfloat px, jfloat py) {
135        SkScalar sx_ = SkFloatToScalar(sx);
136        SkScalar sy_ = SkFloatToScalar(sy);
137        SkScalar px_ = SkFloatToScalar(px);
138        SkScalar py_ = SkFloatToScalar(py);
139        return obj->preScale(sx_, sy_, px_, py_);
140    }
141
142    static jboolean preScale__FF(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat sx, jfloat sy) {
143        SkScalar sx_ = SkFloatToScalar(sx);
144        SkScalar sy_ = SkFloatToScalar(sy);
145        return obj->preScale(sx_, sy_);
146    }
147
148    static jboolean preRotate__FFF(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat degrees, jfloat px, jfloat py) {
149        SkScalar degrees_ = SkFloatToScalar(degrees);
150        SkScalar px_ = SkFloatToScalar(px);
151        SkScalar py_ = SkFloatToScalar(py);
152        return obj->preRotate(degrees_, px_, py_);
153    }
154
155    static jboolean preRotate__F(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat degrees) {
156        SkScalar degrees_ = SkFloatToScalar(degrees);
157        return obj->preRotate(degrees_);
158    }
159
160    static jboolean preSkew__FFFF(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat kx, jfloat ky, jfloat px, jfloat py) {
161        SkScalar kx_ = SkFloatToScalar(kx);
162        SkScalar ky_ = SkFloatToScalar(ky);
163        SkScalar px_ = SkFloatToScalar(px);
164        SkScalar py_ = SkFloatToScalar(py);
165        return obj->preSkew(kx_, ky_, px_, py_);
166    }
167
168    static jboolean preSkew__FF(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat kx, jfloat ky) {
169        SkScalar kx_ = SkFloatToScalar(kx);
170        SkScalar ky_ = SkFloatToScalar(ky);
171        return obj->preSkew(kx_, ky_);
172    }
173
174    static jboolean preConcat(JNIEnv* env, jobject clazz, SkMatrix* obj, SkMatrix* other) {
175        return obj->preConcat(*other);
176    }
177
178    static jboolean postTranslate(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat dx, jfloat dy) {
179        SkScalar dx_ = SkFloatToScalar(dx);
180        SkScalar dy_ = SkFloatToScalar(dy);
181        return obj->postTranslate(dx_, dy_);
182    }
183
184    static jboolean postScale__FFFF(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat sx, jfloat sy, jfloat px, jfloat py) {
185        SkScalar sx_ = SkFloatToScalar(sx);
186        SkScalar sy_ = SkFloatToScalar(sy);
187        SkScalar px_ = SkFloatToScalar(px);
188        SkScalar py_ = SkFloatToScalar(py);
189        return obj->postScale(sx_, sy_, px_, py_);
190    }
191
192    static jboolean postScale__FF(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat sx, jfloat sy) {
193        SkScalar sx_ = SkFloatToScalar(sx);
194        SkScalar sy_ = SkFloatToScalar(sy);
195        return obj->postScale(sx_, sy_);
196    }
197
198    static jboolean postRotate__FFF(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat degrees, jfloat px, jfloat py) {
199        SkScalar degrees_ = SkFloatToScalar(degrees);
200        SkScalar px_ = SkFloatToScalar(px);
201        SkScalar py_ = SkFloatToScalar(py);
202        return obj->postRotate(degrees_, px_, py_);
203    }
204
205    static jboolean postRotate__F(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat degrees) {
206        SkScalar degrees_ = SkFloatToScalar(degrees);
207        return obj->postRotate(degrees_);
208    }
209
210    static jboolean postSkew__FFFF(JNIEnv* env, jobject clazz, SkMatrix* obj, jfloat kx, jfloat ky, jfloat px, jfloat py) {
211        SkScalar kx_ = SkFloatToScalar(kx);
212        SkScalar ky_ = SkFloatToScalar(ky);
213        SkScalar px_ = SkFloatToScalar(px);
214        SkScalar py_ = SkFloatToScalar(py);
215        return obj->postSkew(kx_, ky_, px_, py_);
216    }
217
218    static jboolean postSkew__FF(JNIEnv* env, jobject clazz, SkMatrix* matrix, jfloat kx, jfloat ky) {
219        SkScalar kx_ = SkFloatToScalar(kx);
220        SkScalar ky_ = SkFloatToScalar(ky);
221        return matrix->postSkew(kx_, ky_);
222    }
223
224    static jboolean postConcat(JNIEnv* env, jobject clazz, SkMatrix* matrix, SkMatrix* other) {
225        return matrix->postConcat(*other);
226    }
227
228    static jboolean setRectToRect(JNIEnv* env, jobject clazz, SkMatrix* matrix, jobject src, jobject dst, SkMatrix::ScaleToFit stf) {
229        SkRect src_;
230        GraphicsJNI::jrectf_to_rect(env, src, &src_);
231        SkRect dst_;
232        GraphicsJNI::jrectf_to_rect(env, dst, &dst_);
233        return matrix->setRectToRect(src_, dst_, stf);
234    }
235
236    static jboolean setPolyToPoly(JNIEnv* env, jobject clazz, SkMatrix* matrix,
237                                  jfloatArray jsrc, int srcIndex,
238                                  jfloatArray jdst, int dstIndex, int ptCount) {
239        SkASSERT(srcIndex >= 0);
240        SkASSERT(dstIndex >= 0);
241        SkASSERT((unsigned)ptCount <= 4);
242
243        AutoJavaFloatArray autoSrc(env, jsrc, srcIndex + (ptCount << 1));
244        AutoJavaFloatArray autoDst(env, jdst, dstIndex + (ptCount << 1));
245        float* src = autoSrc.ptr() + srcIndex;
246        float* dst = autoDst.ptr() + dstIndex;
247
248#ifdef SK_SCALAR_IS_FIXED
249        SkPoint srcPt[4], dstPt[4];
250        for (int i = 0; i < ptCount; i++) {
251            int x = i << 1;
252            int y = x + 1;
253            srcPt[i].set(SkFloatToScalar(src[x]), SkFloatToScalar(src[y]));
254            dstPt[i].set(SkFloatToScalar(dst[x]), SkFloatToScalar(dst[y]));
255        }
256        return matrix->setPolyToPoly(srcPt, dstPt, ptCount);
257#else
258        return matrix->setPolyToPoly((const SkPoint*)src, (const SkPoint*)dst,
259                                     ptCount);
260#endif
261    }
262
263    static jboolean invert(JNIEnv* env, jobject clazz, SkMatrix* matrix, SkMatrix* inverse) {
264        return matrix->invert(inverse);
265    }
266
267    static void mapPoints(JNIEnv* env, jobject clazz, SkMatrix* matrix,
268                              jfloatArray dst, int dstIndex,
269                              jfloatArray src, int srcIndex,
270                              int ptCount, bool isPts) {
271        SkASSERT(ptCount >= 0);
272        AutoJavaFloatArray autoSrc(env, src, srcIndex + (ptCount << 1));
273        AutoJavaFloatArray autoDst(env, dst, dstIndex + (ptCount << 1));
274        float* srcArray = autoSrc.ptr() + srcIndex;
275        float* dstArray = autoDst.ptr() + dstIndex;
276
277#ifdef SK_SCALAR_IS_FIXED
278        // we allocate twice the count, 1 set for src, 1 for dst
279        SkAutoSTMalloc<32, SkPoint> storage(ptCount * 2);
280        SkPoint* pts = storage.get();
281        SkPoint* srcPt = pts;
282        SkPoint* dstPt = pts + ptCount;
283
284        int i;
285        for (i = 0; i < ptCount; i++) {
286            srcPt[i].set(SkFloatToScalar(srcArray[i << 1]),
287                         SkFloatToScalar(srcArray[(i << 1) + 1]));
288        }
289
290        if (isPts)
291            matrix->mapPoints(dstPt, srcPt, ptCount);
292        else
293            matrix->mapVectors(dstPt, srcPt, ptCount);
294
295        for (i = 0; i < ptCount; i++) {
296            dstArray[i << 1]  = SkScalarToFloat(dstPt[i].fX);
297            dstArray[(i << 1) + 1]  = SkScalarToFloat(dstPt[i].fY);
298        }
299#else
300        if (isPts)
301            matrix->mapPoints((SkPoint*)dstArray, (const SkPoint*)srcArray,
302                              ptCount);
303        else
304            matrix->mapVectors((SkVector*)dstArray, (const SkVector*)srcArray,
305                               ptCount);
306#endif
307    }
308
309    static jboolean mapRect__RectFRectF(JNIEnv* env, jobject clazz, SkMatrix* matrix, jobjectArray dst, jobject src) {
310        SkRect dst_, src_;
311        GraphicsJNI::jrectf_to_rect(env, src, &src_);
312        jboolean rectStaysRect = matrix->mapRect(&dst_, src_);
313        GraphicsJNI::rect_to_jrectf(dst_, env, dst);
314        return rectStaysRect;
315    }
316
317    static jfloat mapRadius(JNIEnv* env, jobject clazz, SkMatrix* matrix, jfloat radius) {
318        return SkScalarToFloat(matrix->mapRadius(SkFloatToScalar(radius)));
319    }
320
321    static void getValues(JNIEnv* env, jobject clazz, SkMatrix* matrix, jfloatArray values) {
322        AutoJavaFloatArray autoValues(env, values, 9);
323        float* dst = autoValues.ptr();
324
325#ifdef SK_SCALAR_IS_FIXED
326        for (int i = 0; i < 6; i++) {
327            dst[i] = SkFixedToFloat(matrix->get(i));
328        }
329        for (int j = 6; j < 9; j++) {
330            dst[j] = SkFractToFloat(matrix->get(j));
331        }
332#else
333        for (int i = 0; i < 9; i++) {
334            dst[i] = matrix->get(i);
335        }
336#endif
337    }
338
339    static void setValues(JNIEnv* env, jobject clazz, SkMatrix* matrix, jfloatArray values) {
340        AutoJavaFloatArray autoValues(env, values, 9);
341        const float* src = autoValues.ptr();
342
343#ifdef SK_SCALAR_IS_FIXED
344        for (int i = 0; i < 6; i++) {
345            matrix->set(i, SkFloatToFixed(src[i]));
346        }
347        for (int j = 6; j < 9; j++) {
348            matrix->set(j, SkFloatToFract(src[j]));
349        }
350#else
351        for (int i = 0; i < 9; i++) {
352            matrix->set(i, src[i]);
353        }
354#endif
355    }
356
357    static jboolean equals(JNIEnv* env, jobject clazz, const SkMatrix* a, const SkMatrix* b) {
358        return *a == *b;
359    }
360 };
361
362static JNINativeMethod methods[] = {
363    {"finalizer", "(I)V", (void*) SkMatrixGlue::finalizer},
364    {"native_create","(I)I", (void*) SkMatrixGlue::create},
365    {"native_isIdentity","(I)Z", (void*) SkMatrixGlue::isIdentity},
366    {"native_rectStaysRect","(I)Z", (void*) SkMatrixGlue::rectStaysRect},
367    {"native_reset","(I)V", (void*) SkMatrixGlue::reset},
368    {"native_set","(II)V", (void*) SkMatrixGlue::set},
369    {"native_setTranslate","(IFF)V", (void*) SkMatrixGlue::setTranslate},
370    {"native_setScale","(IFFFF)V", (void*) SkMatrixGlue::setScale__FFFF},
371    {"native_setScale","(IFF)V", (void*) SkMatrixGlue::setScale__FF},
372    {"native_setRotate","(IFFF)V", (void*) SkMatrixGlue::setRotate__FFF},
373    {"native_setRotate","(IF)V", (void*) SkMatrixGlue::setRotate__F},
374    {"native_setSinCos","(IFFFF)V", (void*) SkMatrixGlue::setSinCos__FFFF},
375    {"native_setSinCos","(IFF)V", (void*) SkMatrixGlue::setSinCos__FF},
376    {"native_setSkew","(IFFFF)V", (void*) SkMatrixGlue::setSkew__FFFF},
377    {"native_setSkew","(IFF)V", (void*) SkMatrixGlue::setSkew__FF},
378    {"native_setConcat","(III)Z", (void*) SkMatrixGlue::setConcat},
379    {"native_preTranslate","(IFF)Z", (void*) SkMatrixGlue::preTranslate},
380    {"native_preScale","(IFFFF)Z", (void*) SkMatrixGlue::preScale__FFFF},
381    {"native_preScale","(IFF)Z", (void*) SkMatrixGlue::preScale__FF},
382    {"native_preRotate","(IFFF)Z", (void*) SkMatrixGlue::preRotate__FFF},
383    {"native_preRotate","(IF)Z", (void*) SkMatrixGlue::preRotate__F},
384    {"native_preSkew","(IFFFF)Z", (void*) SkMatrixGlue::preSkew__FFFF},
385    {"native_preSkew","(IFF)Z", (void*) SkMatrixGlue::preSkew__FF},
386    {"native_preConcat","(II)Z", (void*) SkMatrixGlue::preConcat},
387    {"native_postTranslate","(IFF)Z", (void*) SkMatrixGlue::postTranslate},
388    {"native_postScale","(IFFFF)Z", (void*) SkMatrixGlue::postScale__FFFF},
389    {"native_postScale","(IFF)Z", (void*) SkMatrixGlue::postScale__FF},
390    {"native_postRotate","(IFFF)Z", (void*) SkMatrixGlue::postRotate__FFF},
391    {"native_postRotate","(IF)Z", (void*) SkMatrixGlue::postRotate__F},
392    {"native_postSkew","(IFFFF)Z", (void*) SkMatrixGlue::postSkew__FFFF},
393    {"native_postSkew","(IFF)Z", (void*) SkMatrixGlue::postSkew__FF},
394    {"native_postConcat","(II)Z", (void*) SkMatrixGlue::postConcat},
395    {"native_setRectToRect","(ILandroid/graphics/RectF;Landroid/graphics/RectF;I)Z", (void*) SkMatrixGlue::setRectToRect},
396    {"native_setPolyToPoly","(I[FI[FII)Z", (void*) SkMatrixGlue::setPolyToPoly},
397    {"native_invert","(II)Z", (void*) SkMatrixGlue::invert},
398    {"native_mapPoints","(I[FI[FIIZ)V", (void*) SkMatrixGlue::mapPoints},
399    {"native_mapRect","(ILandroid/graphics/RectF;Landroid/graphics/RectF;)Z", (void*) SkMatrixGlue::mapRect__RectFRectF},
400    {"native_mapRadius","(IF)F", (void*) SkMatrixGlue::mapRadius},
401    {"native_getValues","(I[F)V", (void*) SkMatrixGlue::getValues},
402    {"native_setValues","(I[F)V", (void*) SkMatrixGlue::setValues},
403    {"native_equals", "(II)Z", (void*) SkMatrixGlue::equals}
404};
405
406int register_android_graphics_Matrix(JNIEnv* env) {
407    int result = AndroidRuntime::registerNativeMethods(env, "android/graphics/Matrix", methods,
408        sizeof(methods) / sizeof(methods[0]));
409    return result;
410}
411
412}
413