android_view_GLES20Canvas.cpp revision 6554943a1dd6854c0f4976900956e556767b49e1 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define LOG_TAG "OpenGLRenderer"
18
19#include <EGL/egl.h>
20
21#include "jni.h"
22#include "GraphicsJNI.h"
23#include <nativehelper/JNIHelp.h>
24
25#include <android_runtime/AndroidRuntime.h>
26#include <android_runtime/android_graphics_SurfaceTexture.h>
27#include <gui/SurfaceTexture.h>
28
29#include <androidfw/ResourceTypes.h>
30
31#include <private/hwui/DrawGlInfo.h>
32
33#include <cutils/properties.h>
34
35#include <SkBitmap.h>
36#include <SkCanvas.h>
37#include <SkMatrix.h>
38#include <SkPaint.h>
39#include <SkRegion.h>
40#include <SkScalerContext.h>
41#include <SkTemplates.h>
42#include <SkXfermode.h>
43
44#include <DisplayListRenderer.h>
45#include <LayerRenderer.h>
46#include <OpenGLRenderer.h>
47#include <SkiaShader.h>
48#include <SkiaColorFilter.h>
49#include <Rect.h>
50
51#include <TextLayout.h>
52#include <TextLayoutCache.h>
53
54namespace android {
55
56using namespace uirenderer;
57
58/**
59 * Note: OpenGLRenderer JNI layer is generated and compiled only on supported
60 *       devices. This means all the logic must be compiled only when the
61 *       preprocessor variable USE_OPENGL_RENDERER is defined.
62 */
63#ifdef USE_OPENGL_RENDERER
64
65///////////////////////////////////////////////////////////////////////////////
66// Defines
67///////////////////////////////////////////////////////////////////////////////
68
69// Debug
70#define DEBUG_RENDERER 0
71
72// Debug
73#if DEBUG_RENDERER
74    #define RENDERER_LOGD(...) ALOGD(__VA_ARGS__)
75#else
76    #define RENDERER_LOGD(...)
77#endif
78
79#define MODIFIER_SHADOW 1
80#define MODIFIER_SHADER 2
81#define MODIFIER_COLOR_FILTER 4
82
83// ----------------------------------------------------------------------------
84
85static struct {
86    jmethodID set;
87} gRectClassInfo;
88
89// ----------------------------------------------------------------------------
90// Misc
91// ----------------------------------------------------------------------------
92
93static jboolean android_view_GLES20Canvas_preserveBackBuffer(JNIEnv* env, jobject clazz) {
94    EGLDisplay display = eglGetCurrentDisplay();
95    EGLSurface surface = eglGetCurrentSurface(EGL_DRAW);
96
97    eglGetError();
98    eglSurfaceAttrib(display, surface, EGL_SWAP_BEHAVIOR, EGL_BUFFER_PRESERVED);
99
100    EGLint error = eglGetError();
101    if (error != EGL_SUCCESS) {
102        RENDERER_LOGD("Could not enable buffer preserved swap behavior (%x)", error);
103    }
104
105    return error == EGL_SUCCESS;
106}
107
108static jboolean android_view_GLES20Canvas_isBackBufferPreserved(JNIEnv* env, jobject clazz) {
109    EGLDisplay display = eglGetCurrentDisplay();
110    EGLSurface surface = eglGetCurrentSurface(EGL_DRAW);
111    EGLint value;
112
113    eglGetError();
114    eglQuerySurface(display, surface, EGL_SWAP_BEHAVIOR, &value);
115
116    EGLint error = eglGetError();
117    if (error != EGL_SUCCESS) {
118        RENDERER_LOGD("Could not query buffer preserved swap behavior (%x)", error);
119    }
120
121    return error == EGL_SUCCESS && value == EGL_BUFFER_PRESERVED;
122}
123
124static void android_view_GLES20Canvas_disableVsync(JNIEnv* env, jobject clazz) {
125    EGLDisplay display = eglGetCurrentDisplay();
126
127    eglGetError();
128    eglSwapInterval(display, 0);
129
130    EGLint error = eglGetError();
131    if (error != EGL_SUCCESS) {
132        RENDERER_LOGD("Could not disable v-sync (%x)", error);
133    }
134}
135
136static void android_view_GLES20Canvas_flushCaches(JNIEnv* env, jobject clazz,
137        Caches::FlushMode mode) {
138    if (Caches::hasInstance()) {
139        Caches::getInstance().flush(mode);
140    }
141}
142
143static void android_view_GLES20Canvas_initCaches(JNIEnv* env, jobject clazz) {
144    if (Caches::hasInstance()) {
145        Caches::getInstance().init();
146    }
147}
148
149static void android_view_GLES20Canvas_terminateCaches(JNIEnv* env, jobject clazz) {
150    if (Caches::hasInstance()) {
151        Caches::getInstance().terminate();
152    }
153}
154
155// ----------------------------------------------------------------------------
156// Constructors
157// ----------------------------------------------------------------------------
158
159static OpenGLRenderer* android_view_GLES20Canvas_createRenderer(JNIEnv* env, jobject clazz) {
160    RENDERER_LOGD("Create OpenGLRenderer");
161    return new OpenGLRenderer;
162}
163
164static void android_view_GLES20Canvas_destroyRenderer(JNIEnv* env, jobject clazz,
165        OpenGLRenderer* renderer) {
166    RENDERER_LOGD("Destroy OpenGLRenderer");
167    delete renderer;
168}
169
170// ----------------------------------------------------------------------------
171// Setup
172// ----------------------------------------------------------------------------
173
174static void android_view_GLES20Canvas_setViewport(JNIEnv* env, jobject clazz,
175        OpenGLRenderer* renderer, jint width, jint height) {
176    renderer->setViewport(width, height);
177}
178
179static void android_view_GLES20Canvas_prepare(JNIEnv* env, jobject clazz,
180        OpenGLRenderer* renderer, jboolean opaque) {
181    renderer->prepare(opaque);
182}
183
184static void android_view_GLES20Canvas_prepareDirty(JNIEnv* env, jobject clazz,
185        OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom,
186        jboolean opaque) {
187    renderer->prepareDirty(left, top, right, bottom, opaque);
188}
189
190static void android_view_GLES20Canvas_finish(JNIEnv* env, jobject clazz,
191        OpenGLRenderer* renderer) {
192    renderer->finish();
193}
194
195static jint android_view_GLES20Canvas_getStencilSize(JNIEnv* env, jobject clazz) {
196    return OpenGLRenderer::getStencilSize();
197}
198
199// ----------------------------------------------------------------------------
200// Functor
201// ----------------------------------------------------------------------------
202
203static jint android_view_GLES20Canvas_callDrawGLFunction(JNIEnv* env, jobject clazz,
204        OpenGLRenderer* renderer, Functor *functor) {
205    android::uirenderer::Rect dirty;
206    return renderer->callDrawGLFunction(functor, dirty);
207}
208
209static jint android_view_GLES20Canvas_getMaxTextureWidth(JNIEnv* env, jobject clazz) {
210    return Caches::getInstance().maxTextureSize;
211}
212
213static jint android_view_GLES20Canvas_getMaxTextureHeight(JNIEnv* env, jobject clazz) {
214    return Caches::getInstance().maxTextureSize;
215}
216
217// ----------------------------------------------------------------------------
218// State
219// ----------------------------------------------------------------------------
220
221static jint android_view_GLES20Canvas_save(JNIEnv* env, jobject clazz, OpenGLRenderer* renderer,
222        jint flags) {
223    return renderer->save(flags);
224}
225
226static jint android_view_GLES20Canvas_getSaveCount(JNIEnv* env, jobject clazz,
227        OpenGLRenderer* renderer) {
228    return renderer->getSaveCount();
229}
230
231static void android_view_GLES20Canvas_restore(JNIEnv* env, jobject clazz,
232        OpenGLRenderer* renderer) {
233    renderer->restore();
234}
235
236static void android_view_GLES20Canvas_restoreToCount(JNIEnv* env, jobject clazz,
237        OpenGLRenderer* renderer, jint saveCount) {
238    renderer->restoreToCount(saveCount);
239}
240
241// ----------------------------------------------------------------------------
242// Layers
243// ----------------------------------------------------------------------------
244
245static jint android_view_GLES20Canvas_saveLayer(JNIEnv* env, jobject clazz,
246        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
247        SkPaint* paint, jint saveFlags) {
248    return renderer->saveLayer(left, top, right, bottom, paint, saveFlags);
249}
250
251static jint android_view_GLES20Canvas_saveLayerClip(JNIEnv* env, jobject clazz,
252        OpenGLRenderer* renderer, SkPaint* paint, jint saveFlags) {
253    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
254    return renderer->saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom,
255            paint, saveFlags);
256}
257
258static jint android_view_GLES20Canvas_saveLayerAlpha(JNIEnv* env, jobject clazz,
259        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
260        jint alpha, jint saveFlags) {
261    return renderer->saveLayerAlpha(left, top, right, bottom, alpha, saveFlags);
262}
263
264static jint android_view_GLES20Canvas_saveLayerAlphaClip(JNIEnv* env, jobject clazz,
265        OpenGLRenderer* renderer, jint alpha, jint saveFlags) {
266    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
267    return renderer->saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom,
268            alpha, saveFlags);
269}
270
271// ----------------------------------------------------------------------------
272// Clipping
273// ----------------------------------------------------------------------------
274
275static bool android_view_GLES20Canvas_quickReject(JNIEnv* env, jobject clazz,
276        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
277        SkCanvas::EdgeType edge) {
278    return renderer->quickReject(left, top, right, bottom);
279}
280
281static bool android_view_GLES20Canvas_clipRectF(JNIEnv* env, jobject clazz,
282        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
283        SkRegion::Op op) {
284    return renderer->clipRect(left, top, right, bottom, op);
285}
286
287static bool android_view_GLES20Canvas_clipRect(JNIEnv* env, jobject clazz,
288        OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom,
289        SkRegion::Op op) {
290    return renderer->clipRect(float(left), float(top), float(right), float(bottom), op);
291}
292
293static bool android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject clazz,
294        OpenGLRenderer* renderer, jobject rect) {
295    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
296
297    env->CallVoidMethod(rect, gRectClassInfo.set,
298            int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
299
300    return !bounds.isEmpty();
301}
302
303// ----------------------------------------------------------------------------
304// Transforms
305// ----------------------------------------------------------------------------
306
307static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject clazz,
308        OpenGLRenderer* renderer, jfloat dx, jfloat dy) {
309    renderer->translate(dx, dy);
310}
311
312static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject clazz,
313        OpenGLRenderer* renderer, jfloat degrees) {
314    renderer->rotate(degrees);
315}
316
317static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject clazz,
318        OpenGLRenderer* renderer, jfloat sx, jfloat sy) {
319    renderer->scale(sx, sy);
320}
321
322static void android_view_GLES20Canvas_skew(JNIEnv* env, jobject clazz,
323        OpenGLRenderer* renderer, jfloat sx, jfloat sy) {
324    renderer->skew(sx, sy);
325}
326
327static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject clazz,
328        OpenGLRenderer* renderer, SkMatrix* matrix) {
329    renderer->setMatrix(matrix);
330}
331
332static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject clazz,
333        OpenGLRenderer* renderer, SkMatrix* matrix) {
334    renderer->getMatrix(matrix);
335}
336
337static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject clazz,
338        OpenGLRenderer* renderer, SkMatrix* matrix) {
339    renderer->concatMatrix(matrix);
340}
341
342// ----------------------------------------------------------------------------
343// Drawing
344// ----------------------------------------------------------------------------
345
346static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject clazz,
347        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, float left,
348        float top, SkPaint* paint) {
349    // This object allows the renderer to allocate a global JNI ref to the buffer object.
350    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
351
352    renderer->drawBitmap(bitmap, left, top, paint);
353}
354
355static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject clazz,
356        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer,
357        float srcLeft, float srcTop, float srcRight, float srcBottom,
358        float dstLeft, float dstTop, float dstRight, float dstBottom, SkPaint* paint) {
359    // This object allows the renderer to allocate a global JNI ref to the buffer object.
360    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
361
362    renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom,
363            dstLeft, dstTop, dstRight, dstBottom, paint);
364}
365
366static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject clazz,
367        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, SkMatrix* matrix,
368        SkPaint* paint) {
369    // This object allows the renderer to allocate a global JNI ref to the buffer object.
370    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
371
372    renderer->drawBitmap(bitmap, matrix, paint);
373}
374
375static void android_view_GLES20Canvas_drawBitmapMesh(JNIEnv* env, jobject clazz,
376        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer,
377        jint meshWidth, jint meshHeight, jfloatArray vertices, jint offset,
378        jintArray colors, jint colorOffset, SkPaint* paint) {
379    // This object allows the renderer to allocate a global JNI ref to the buffer object.
380    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
381
382    jfloat* verticesArray = vertices ? env->GetFloatArrayElements(vertices, NULL) + offset : NULL;
383    jint* colorsArray = colors ? env->GetIntArrayElements(colors, NULL) + colorOffset : NULL;
384
385    renderer->drawBitmapMesh(bitmap, meshWidth, meshHeight, verticesArray, colorsArray, paint);
386
387    if (vertices) env->ReleaseFloatArrayElements(vertices, verticesArray, 0);
388    if (colors) env->ReleaseIntArrayElements(colors, colorsArray, 0);
389}
390
391static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject clazz,
392        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, jbyteArray chunks,
393        float left, float top, float right, float bottom, SkPaint* paint) {
394    // This object allows the renderer to allocate a global JNI ref to the buffer object.
395    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
396
397    jbyte* storage = env->GetByteArrayElements(chunks, NULL);
398    Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(storage);
399    Res_png_9patch::deserialize(patch);
400
401    renderer->drawPatch(bitmap, &patch->xDivs[0], &patch->yDivs[0],
402            &patch->colors[0], patch->numXDivs, patch->numYDivs, patch->numColors,
403            left, top, right, bottom, paint);
404
405    env->ReleaseByteArrayElements(chunks, storage, 0);
406}
407
408static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject clazz,
409        OpenGLRenderer* renderer, jint color, SkXfermode::Mode mode) {
410    renderer->drawColor(color, mode);
411}
412
413static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject clazz,
414        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
415        SkPaint* paint) {
416    renderer->drawRect(left, top, right, bottom, paint);
417}
418
419static void android_view_GLES20Canvas_drawRoundRect(JNIEnv* env, jobject clazz,
420        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
421        jfloat rx, jfloat ry, SkPaint* paint) {
422    renderer->drawRoundRect(left, top, right, bottom, rx, ry, paint);
423}
424
425static void android_view_GLES20Canvas_drawCircle(JNIEnv* env, jobject clazz,
426        OpenGLRenderer* renderer, jfloat x, jfloat y, jfloat radius, SkPaint* paint) {
427    renderer->drawCircle(x, y, radius, paint);
428}
429
430static void android_view_GLES20Canvas_drawOval(JNIEnv* env, jobject clazz,
431        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
432        SkPaint* paint) {
433    renderer->drawOval(left, top, right, bottom, paint);
434}
435
436static void android_view_GLES20Canvas_drawArc(JNIEnv* env, jobject clazz,
437        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
438        jfloat startAngle, jfloat sweepAngle, jboolean useCenter, SkPaint* paint) {
439    renderer->drawArc(left, top, right, bottom, startAngle, sweepAngle, useCenter, paint);
440}
441
442static void android_view_GLES20Canvas_drawRects(JNIEnv* env, jobject clazz,
443        OpenGLRenderer* renderer, SkRegion* region, SkPaint* paint) {
444    SkRegion::Iterator it(*region);
445    while (!it.done()) {
446        const SkIRect& r = it.rect();
447        renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint);
448        it.next();
449    }
450}
451
452static void android_view_GLES20Canvas_drawPoints(JNIEnv* env, jobject clazz,
453        OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) {
454    jfloat* storage = env->GetFloatArrayElements(points, NULL);
455    renderer->drawPoints(storage + offset, count, paint);
456    env->ReleaseFloatArrayElements(points, storage, 0);
457}
458
459static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject clazz,
460        OpenGLRenderer* renderer, SkPath* path, SkPaint* paint) {
461    renderer->drawPath(path, paint);
462}
463
464static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject clazz,
465        OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) {
466    jfloat* storage = env->GetFloatArrayElements(points, NULL);
467    renderer->drawLines(storage + offset, count, paint);
468    env->ReleaseFloatArrayElements(points, storage, 0);
469}
470
471// ----------------------------------------------------------------------------
472// Shaders and color filters
473// ----------------------------------------------------------------------------
474
475static void android_view_GLES20Canvas_resetModifiers(JNIEnv* env, jobject clazz,
476        OpenGLRenderer* renderer, jint modifiers) {
477    if (modifiers & MODIFIER_SHADOW) renderer->resetShadow();
478    if (modifiers & MODIFIER_SHADER) renderer->resetShader();
479    if (modifiers & MODIFIER_COLOR_FILTER) renderer->resetColorFilter();
480}
481
482static void android_view_GLES20Canvas_setupShader(JNIEnv* env, jobject clazz,
483        OpenGLRenderer* renderer, SkiaShader* shader) {
484    renderer->setupShader(shader);
485}
486
487static void android_view_GLES20Canvas_setupColorFilter(JNIEnv* env, jobject clazz,
488        OpenGLRenderer* renderer, SkiaColorFilter* filter) {
489    renderer->setupColorFilter(filter);
490}
491
492static void android_view_GLES20Canvas_setupShadow(JNIEnv* env, jobject clazz,
493        OpenGLRenderer* renderer, jfloat radius, jfloat dx, jfloat dy, jint color) {
494    renderer->setupShadow(radius, dx, dy, color);
495}
496
497// ----------------------------------------------------------------------------
498// Draw filters
499// ----------------------------------------------------------------------------
500
501static void android_view_GLES20Canvas_setupPaintFilter(JNIEnv* env, jobject clazz,
502        OpenGLRenderer* renderer, jint clearBits, jint setBits) {
503    renderer->setupPaintFilter(clearBits, setBits);
504}
505
506static void android_view_GLES20Canvas_resetPaintFilter(JNIEnv* env, jobject clazz,
507        OpenGLRenderer* renderer) {
508    renderer->resetPaintFilter();
509}
510
511// ----------------------------------------------------------------------------
512// Text
513// ----------------------------------------------------------------------------
514
515static void renderText(OpenGLRenderer* renderer, const jchar* text, int count,
516        jfloat x, jfloat y, int flags, SkPaint* paint) {
517    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
518            text, 0, count, count, flags);
519    if (value == NULL) {
520        return;
521    }
522    const jchar* glyphs = value->getGlyphs();
523    size_t glyphsCount = value->getGlyphsCount();
524    int bytesCount = glyphsCount * sizeof(jchar);
525    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount, x, y, paint);
526}
527
528static void renderTextOnPath(OpenGLRenderer* renderer, const jchar* text, int count,
529        SkPath* path, jfloat hOffset, jfloat vOffset, int flags, SkPaint* paint) {
530    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
531            text, 0, count, count, flags);
532    if (value == NULL) {
533        return;
534    }
535    const jchar* glyphs = value->getGlyphs();
536    size_t glyphsCount = value->getGlyphsCount();
537    int bytesCount = glyphsCount * sizeof(jchar);
538    renderer->drawTextOnPath((const char*) glyphs, bytesCount, glyphsCount, path,
539            hOffset, vOffset, paint);
540}
541
542static void renderTextRun(OpenGLRenderer* renderer, const jchar* text,
543        jint start, jint count, jint contextCount, jfloat x, jfloat y,
544        int flags, SkPaint* paint) {
545    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
546            text, start, count, contextCount, flags);
547    if (value == NULL) {
548        return;
549    }
550    const jchar* glyphs = value->getGlyphs();
551    size_t glyphsCount = value->getGlyphsCount();
552    int bytesCount = glyphsCount * sizeof(jchar);
553    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount, x, y, paint);
554}
555
556static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject clazz,
557        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
558        jfloat x, jfloat y, jint flags, SkPaint* paint) {
559    jchar* textArray = env->GetCharArrayElements(text, NULL);
560    renderText(renderer, textArray + index, count, x, y, flags, paint);
561    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
562}
563
564static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject clazz,
565        OpenGLRenderer* renderer, jstring text, jint start, jint end,
566        jfloat x, jfloat y, jint flags, SkPaint* paint) {
567    const jchar* textArray = env->GetStringChars(text, NULL);
568    renderText(renderer, textArray + start, end - start, x, y, flags, paint);
569    env->ReleaseStringChars(text, textArray);
570}
571
572static void android_view_GLES20Canvas_drawTextArrayOnPath(JNIEnv* env, jobject clazz,
573        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
574        SkPath* path, jfloat hOffset, jfloat vOffset, jint flags, SkPaint* paint) {
575    jchar* textArray = env->GetCharArrayElements(text, NULL);
576    renderTextOnPath(renderer, textArray + index, count, path,
577            hOffset, vOffset, flags, paint);
578    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
579}
580
581static void android_view_GLES20Canvas_drawTextOnPath(JNIEnv* env, jobject clazz,
582        OpenGLRenderer* renderer, jstring text, jint start, jint end,
583        SkPath* path, jfloat hOffset, jfloat vOffset, jint flags, SkPaint* paint) {
584    const jchar* textArray = env->GetStringChars(text, NULL);
585    renderTextOnPath(renderer, textArray + start, end - start, path,
586            hOffset, vOffset, flags, paint);
587    env->ReleaseStringChars(text, textArray);
588}
589
590static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject clazz,
591        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
592        jint contextIndex, jint contextCount, jfloat x, jfloat y, jint dirFlags,
593        SkPaint* paint) {
594    jchar* textArray = env->GetCharArrayElements(text, NULL);
595    renderTextRun(renderer, textArray + contextIndex, index - contextIndex,
596            count, contextCount, x, y, dirFlags, paint);
597    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
598 }
599
600static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject clazz,
601        OpenGLRenderer* renderer, jstring text, jint start, jint end,
602        jint contextStart, int contextEnd, jfloat x, jfloat y, jint dirFlags,
603        SkPaint* paint) {
604    const jchar* textArray = env->GetStringChars(text, NULL);
605    jint count = end - start;
606    jint contextCount = contextEnd - contextStart;
607    renderTextRun(renderer, textArray + contextStart, start - contextStart,
608            count, contextCount, x, y, dirFlags, paint);
609    env->ReleaseStringChars(text, textArray);
610}
611
612static void renderPosText(OpenGLRenderer* renderer, const jchar* text, int count,
613        const jfloat* positions, jint dirFlags, SkPaint* paint) {
614    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
615            text, 0, count, count, dirFlags);
616    if (value == NULL) {
617        return;
618    }
619    const jchar* glyphs = value->getGlyphs();
620    size_t glyphsCount = value->getGlyphsCount();
621    if (count < int(glyphsCount)) glyphsCount = count;
622    int bytesCount = glyphsCount * sizeof(jchar);
623
624    renderer->drawPosText((const char*) glyphs, bytesCount, glyphsCount, positions, paint);
625}
626
627static void android_view_GLES20Canvas_drawPosTextArray(JNIEnv* env, jobject clazz,
628        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
629        jfloatArray pos, SkPaint* paint) {
630    jchar* textArray = env->GetCharArrayElements(text, NULL);
631    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
632
633    renderPosText(renderer, textArray + index, count, positions, kBidi_LTR, paint);
634
635    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
636    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
637}
638
639static void android_view_GLES20Canvas_drawPosText(JNIEnv* env, jobject clazz,
640        OpenGLRenderer* renderer, jstring text, jint start, jint end,
641        jfloatArray pos, SkPaint* paint) {
642    const jchar* textArray = env->GetStringChars(text, NULL);
643    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
644
645    renderPosText(renderer, textArray + start, end - start, positions, kBidi_LTR, paint);
646
647    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
648    env->ReleaseStringChars(text, textArray);
649}
650
651// ----------------------------------------------------------------------------
652// Display lists
653// ----------------------------------------------------------------------------
654
655static DisplayList* android_view_GLES20Canvas_getDisplayList(JNIEnv* env,
656        jobject clazz, DisplayListRenderer* renderer, DisplayList* displayList) {
657    return renderer->getDisplayList(displayList);
658}
659
660static jint android_view_GLES20Canvas_getDisplayListSize(JNIEnv* env,
661        jobject clazz, DisplayList* displayList) {
662    return displayList->getSize();
663}
664
665static void android_view_GLES20Canvas_setDisplayListName(JNIEnv* env,
666        jobject clazz, DisplayList* displayList, jstring name) {
667    if (name != NULL) {
668        const char* textArray = env->GetStringUTFChars(name, NULL);
669        displayList->setName(textArray);
670        env->ReleaseStringUTFChars(name, textArray);
671    }
672}
673
674static OpenGLRenderer* android_view_GLES20Canvas_createDisplayListRenderer(JNIEnv* env,
675        jobject clazz) {
676    return new DisplayListRenderer;
677}
678
679static void android_view_GLES20Canvas_resetDisplayListRenderer(JNIEnv* env,
680        jobject clazz, DisplayListRenderer* renderer) {
681    renderer->reset();
682}
683
684static void android_view_GLES20Canvas_destroyDisplayList(JNIEnv* env,
685        jobject clazz, DisplayList* displayList) {
686    DisplayList::destroyDisplayListDeferred(displayList);
687}
688
689static jint android_view_GLES20Canvas_drawDisplayList(JNIEnv* env,
690        jobject clazz, OpenGLRenderer* renderer, DisplayList* displayList,
691        jint width, jint height, jobject dirty, jint flags) {
692    android::uirenderer::Rect bounds;
693    status_t status = renderer->drawDisplayList(displayList, width, height, bounds, flags);
694    if (status != DrawGlInfo::kStatusDone && dirty != NULL) {
695        env->CallVoidMethod(dirty, gRectClassInfo.set,
696                int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
697    }
698    return status;
699}
700
701static void android_view_GLES20Canvas_outputDisplayList(JNIEnv* env,
702        jobject clazz, OpenGLRenderer* renderer, DisplayList* displayList) {
703    renderer->outputDisplayList(displayList);
704}
705
706// ----------------------------------------------------------------------------
707// Layers
708// ----------------------------------------------------------------------------
709
710static void android_view_GLES20Canvas_interrupt(JNIEnv* env, jobject clazz,
711        OpenGLRenderer* renderer) {
712    renderer->interrupt();
713}
714
715static void android_view_GLES20Canvas_resume(JNIEnv* env, jobject clazz,
716        OpenGLRenderer* renderer) {
717    renderer->resume();
718}
719
720static OpenGLRenderer* android_view_GLES20Canvas_createLayerRenderer(JNIEnv* env,
721        jobject clazz, Layer* layer) {
722    if (layer) {
723        return new LayerRenderer(layer);
724    }
725    return NULL;
726}
727
728static Layer* android_view_GLES20Canvas_createTextureLayer(JNIEnv* env, jobject clazz,
729        jboolean isOpaque, jintArray layerInfo) {
730    Layer* layer = LayerRenderer::createTextureLayer(isOpaque);
731
732    if (layer) {
733        jint* storage = env->GetIntArrayElements(layerInfo, NULL);
734        storage[0] = layer->getTexture();
735        env->ReleaseIntArrayElements(layerInfo, storage, 0);
736    }
737
738    return layer;
739}
740
741static Layer* android_view_GLES20Canvas_createLayer(JNIEnv* env, jobject clazz,
742        jint width, jint height, jboolean isOpaque, jintArray layerInfo) {
743    Layer* layer = LayerRenderer::createLayer(width, height, isOpaque);
744
745    if (layer) {
746        jint* storage = env->GetIntArrayElements(layerInfo, NULL);
747        storage[0] = layer->getWidth();
748        storage[1] = layer->getHeight();
749        env->ReleaseIntArrayElements(layerInfo, storage, 0);
750    }
751
752    return layer;
753}
754
755static void android_view_GLES20Canvas_resizeLayer(JNIEnv* env, jobject clazz,
756        Layer* layer, jint width, jint height, jintArray layerInfo) {
757    LayerRenderer::resizeLayer(layer, width, height);
758
759    jint* storage = env->GetIntArrayElements(layerInfo, NULL);
760    storage[0] = layer->getWidth();
761    storage[1] = layer->getHeight();
762    env->ReleaseIntArrayElements(layerInfo, storage, 0);
763}
764
765static void android_view_GLES20Canvas_updateTextureLayer(JNIEnv* env, jobject clazz,
766        Layer* layer, jint width, jint height, jboolean isOpaque, jobject surface) {
767    float transform[16];
768    sp<SurfaceTexture> surfaceTexture(SurfaceTexture_getSurfaceTexture(env, surface));
769
770    surfaceTexture->updateTexImage();
771    surfaceTexture->getTransformMatrix(transform);
772    GLenum renderTarget = surfaceTexture->getCurrentTextureTarget();
773
774    LayerRenderer::updateTextureLayer(layer, width, height, isOpaque, renderTarget, transform);
775}
776
777static void android_view_GLES20Canvas_updateRenderLayer(JNIEnv* env, jobject clazz,
778        Layer* layer, OpenGLRenderer* renderer, DisplayList* displayList,
779        jint left, jint top, jint right, jint bottom) {
780    layer->updateDeferred(renderer, displayList, left, top, right, bottom);
781}
782
783static void android_view_GLES20Canvas_setTextureLayerTransform(JNIEnv* env, jobject clazz,
784        Layer* layer, SkMatrix* matrix) {
785
786    layer->getTransform().load(*matrix);
787}
788
789static void android_view_GLES20Canvas_destroyLayer(JNIEnv* env, jobject clazz, Layer* layer) {
790    LayerRenderer::destroyLayer(layer);
791}
792
793static void android_view_GLES20Canvas_destroyLayerDeferred(JNIEnv* env,
794        jobject clazz, Layer* layer) {
795    LayerRenderer::destroyLayerDeferred(layer);
796}
797
798static void android_view_GLES20Canvas_flushLayer(JNIEnv* env, jobject clazz, Layer* layer) {
799    LayerRenderer::flushLayer(layer);
800}
801
802static void android_view_GLES20Canvas_drawLayer(JNIEnv* env, jobject clazz,
803        OpenGLRenderer* renderer, Layer* layer, jfloat x, jfloat y, SkPaint* paint) {
804    renderer->drawLayer(layer, x, y, paint);
805}
806
807static jboolean android_view_GLES20Canvas_copyLayer(JNIEnv* env, jobject clazz,
808        Layer* layer, SkBitmap* bitmap) {
809    return LayerRenderer::copyLayer(layer, bitmap);
810}
811
812#endif // USE_OPENGL_RENDERER
813
814// ----------------------------------------------------------------------------
815// Common
816// ----------------------------------------------------------------------------
817
818static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) {
819#ifdef USE_OPENGL_RENDERER
820    char prop[PROPERTY_VALUE_MAX];
821    if (property_get("ro.kernel.qemu", prop, NULL) == 0) {
822        // not in the emulator
823        return JNI_TRUE;
824    }
825    // In the emulator this property will be set to 1 when hardware GLES is
826    // enabled, 0 otherwise. On old emulator versions it will be undefined.
827    property_get("ro.kernel.qemu.gles", prop, "0");
828    return atoi(prop) == 1 ? JNI_TRUE : JNI_FALSE;
829#else
830    return JNI_FALSE;
831#endif
832}
833
834// ----------------------------------------------------------------------------
835// Logging
836// ----------------------------------------------------------------------------
837
838static void
839android_app_ActivityThread_dumpGraphics(JNIEnv* env, jobject clazz, jobject javaFileDescriptor) {
840#ifdef USE_OPENGL_RENDERER
841    int fd = jniGetFDFromFileDescriptor(env, javaFileDescriptor);
842    android::uirenderer::DisplayList::outputLogBuffer(fd);
843#endif // USE_OPENGL_RENDERER
844}
845
846// ----------------------------------------------------------------------------
847// JNI Glue
848// ----------------------------------------------------------------------------
849
850const char* const kClassPathName = "android/view/GLES20Canvas";
851
852static JNINativeMethod gMethods[] = {
853    { "nIsAvailable",       "()Z",             (void*) android_view_GLES20Canvas_isAvailable },
854
855#ifdef USE_OPENGL_RENDERER
856    { "nIsBackBufferPreserved", "()Z",         (void*) android_view_GLES20Canvas_isBackBufferPreserved },
857    { "nPreserveBackBuffer",    "()Z",         (void*) android_view_GLES20Canvas_preserveBackBuffer },
858    { "nDisableVsync",          "()V",         (void*) android_view_GLES20Canvas_disableVsync },
859    { "nFlushCaches",           "(I)V",        (void*) android_view_GLES20Canvas_flushCaches },
860    { "nInitCaches",            "()V",         (void*) android_view_GLES20Canvas_initCaches },
861    { "nTerminateCaches",       "()V",         (void*) android_view_GLES20Canvas_terminateCaches },
862
863    { "nCreateRenderer",    "()I",             (void*) android_view_GLES20Canvas_createRenderer },
864    { "nDestroyRenderer",   "(I)V",            (void*) android_view_GLES20Canvas_destroyRenderer },
865    { "nSetViewport",       "(III)V",          (void*) android_view_GLES20Canvas_setViewport },
866    { "nPrepare",           "(IZ)V",           (void*) android_view_GLES20Canvas_prepare },
867    { "nPrepareDirty",      "(IIIIIZ)V",       (void*) android_view_GLES20Canvas_prepareDirty },
868    { "nFinish",            "(I)V",            (void*) android_view_GLES20Canvas_finish },
869
870    { "nGetStencilSize",    "()I",             (void*) android_view_GLES20Canvas_getStencilSize },
871
872    { "nCallDrawGLFunction", "(II)I",
873            (void*) android_view_GLES20Canvas_callDrawGLFunction },
874
875    { "nSave",              "(II)I",           (void*) android_view_GLES20Canvas_save },
876    { "nRestore",           "(I)V",            (void*) android_view_GLES20Canvas_restore },
877    { "nRestoreToCount",    "(II)V",           (void*) android_view_GLES20Canvas_restoreToCount },
878    { "nGetSaveCount",      "(I)I",            (void*) android_view_GLES20Canvas_getSaveCount },
879
880    { "nSaveLayer",         "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayer },
881    { "nSaveLayer",         "(III)I",          (void*) android_view_GLES20Canvas_saveLayerClip },
882    { "nSaveLayerAlpha",    "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayerAlpha },
883    { "nSaveLayerAlpha",    "(III)I",          (void*) android_view_GLES20Canvas_saveLayerAlphaClip },
884
885    { "nQuickReject",       "(IFFFFI)Z",       (void*) android_view_GLES20Canvas_quickReject },
886    { "nClipRect",          "(IFFFFI)Z",       (void*) android_view_GLES20Canvas_clipRectF },
887    { "nClipRect",          "(IIIIII)Z",       (void*) android_view_GLES20Canvas_clipRect },
888
889    { "nTranslate",         "(IFF)V",          (void*) android_view_GLES20Canvas_translate },
890    { "nRotate",            "(IF)V",           (void*) android_view_GLES20Canvas_rotate },
891    { "nScale",             "(IFF)V",          (void*) android_view_GLES20Canvas_scale },
892    { "nSkew",              "(IFF)V",          (void*) android_view_GLES20Canvas_skew },
893
894    { "nSetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_setMatrix },
895    { "nGetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_getMatrix },
896    { "nConcatMatrix",      "(II)V",           (void*) android_view_GLES20Canvas_concatMatrix },
897
898    { "nDrawBitmap",        "(II[BFFI)V",      (void*) android_view_GLES20Canvas_drawBitmap },
899    { "nDrawBitmap",        "(II[BFFFFFFFFI)V",(void*) android_view_GLES20Canvas_drawBitmapRect },
900    { "nDrawBitmap",        "(II[BII)V",       (void*) android_view_GLES20Canvas_drawBitmapMatrix },
901
902    { "nDrawBitmapMesh",    "(II[BII[FI[III)V",(void*) android_view_GLES20Canvas_drawBitmapMesh },
903
904    { "nDrawPatch",         "(II[B[BFFFFI)V",  (void*) android_view_GLES20Canvas_drawPatch },
905
906    { "nDrawColor",         "(III)V",          (void*) android_view_GLES20Canvas_drawColor },
907    { "nDrawRect",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawRect },
908    { "nDrawRects",         "(III)V",          (void*) android_view_GLES20Canvas_drawRects },
909    { "nDrawRoundRect",     "(IFFFFFFI)V",     (void*) android_view_GLES20Canvas_drawRoundRect },
910    { "nDrawCircle",        "(IFFFI)V",        (void*) android_view_GLES20Canvas_drawCircle },
911    { "nDrawOval",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawOval },
912    { "nDrawArc",           "(IFFFFFFZI)V",    (void*) android_view_GLES20Canvas_drawArc },
913    { "nDrawPoints",        "(I[FIII)V",       (void*) android_view_GLES20Canvas_drawPoints },
914
915    { "nDrawPath",          "(III)V",          (void*) android_view_GLES20Canvas_drawPath },
916    { "nDrawLines",         "(I[FIII)V",       (void*) android_view_GLES20Canvas_drawLines },
917
918    { "nResetModifiers",    "(II)V",           (void*) android_view_GLES20Canvas_resetModifiers },
919    { "nSetupShader",       "(II)V",           (void*) android_view_GLES20Canvas_setupShader },
920    { "nSetupColorFilter",  "(II)V",           (void*) android_view_GLES20Canvas_setupColorFilter },
921    { "nSetupShadow",       "(IFFFI)V",        (void*) android_view_GLES20Canvas_setupShadow },
922
923    { "nSetupPaintFilter",  "(III)V",          (void*) android_view_GLES20Canvas_setupPaintFilter },
924    { "nResetPaintFilter",  "(I)V",            (void*) android_view_GLES20Canvas_resetPaintFilter },
925
926    { "nDrawText",          "(I[CIIFFII)V",    (void*) android_view_GLES20Canvas_drawTextArray },
927    { "nDrawText",          "(ILjava/lang/String;IIFFII)V",
928            (void*) android_view_GLES20Canvas_drawText },
929
930    { "nDrawTextOnPath",    "(I[CIIIFFII)V",   (void*) android_view_GLES20Canvas_drawTextArrayOnPath },
931    { "nDrawTextOnPath",    "(ILjava/lang/String;IIIFFII)V",
932            (void*) android_view_GLES20Canvas_drawTextOnPath },
933
934    { "nDrawTextRun",       "(I[CIIIIFFII)V",  (void*) android_view_GLES20Canvas_drawTextRunArray },
935    { "nDrawTextRun",       "(ILjava/lang/String;IIIIFFII)V",
936            (void*) android_view_GLES20Canvas_drawTextRun },
937
938    { "nDrawPosText",       "(I[CII[FI)V",     (void*) android_view_GLES20Canvas_drawPosTextArray },
939    { "nDrawPosText",       "(ILjava/lang/String;II[FI)V",
940            (void*) android_view_GLES20Canvas_drawPosText },
941
942    { "nGetClipBounds",     "(ILandroid/graphics/Rect;)Z",
943            (void*) android_view_GLES20Canvas_getClipBounds },
944
945    { "nGetDisplayList",         "(II)I",      (void*) android_view_GLES20Canvas_getDisplayList },
946    { "nDestroyDisplayList",     "(I)V",       (void*) android_view_GLES20Canvas_destroyDisplayList },
947    { "nGetDisplayListSize",     "(I)I",       (void*) android_view_GLES20Canvas_getDisplayListSize },
948    { "nSetDisplayListName",     "(ILjava/lang/String;)V",
949                                               (void*) android_view_GLES20Canvas_setDisplayListName },
950    { "nDrawDisplayList",        "(IIIILandroid/graphics/Rect;I)I",
951                                               (void*) android_view_GLES20Canvas_drawDisplayList },
952
953    { "nCreateDisplayListRenderer", "()I",     (void*) android_view_GLES20Canvas_createDisplayListRenderer },
954    { "nResetDisplayListRenderer",  "(I)V",    (void*) android_view_GLES20Canvas_resetDisplayListRenderer },
955
956    { "nOutputDisplayList",      "(II)V",      (void*) android_view_GLES20Canvas_outputDisplayList },
957    { "nInterrupt",              "(I)V",       (void*) android_view_GLES20Canvas_interrupt },
958    { "nResume",                 "(I)V",       (void*) android_view_GLES20Canvas_resume },
959
960    { "nCreateLayerRenderer",    "(I)I",       (void*) android_view_GLES20Canvas_createLayerRenderer },
961    { "nCreateLayer",            "(IIZ[I)I",   (void*) android_view_GLES20Canvas_createLayer },
962    { "nResizeLayer",            "(III[I)V" ,  (void*) android_view_GLES20Canvas_resizeLayer },
963    { "nCreateTextureLayer",     "(Z[I)I",     (void*) android_view_GLES20Canvas_createTextureLayer },
964    { "nUpdateTextureLayer",     "(IIIZLandroid/graphics/SurfaceTexture;)V",
965                                               (void*) android_view_GLES20Canvas_updateTextureLayer },
966    { "nUpdateRenderLayer",      "(IIIIIII)V", (void*) android_view_GLES20Canvas_updateRenderLayer },
967    { "nDestroyLayer",           "(I)V",       (void*) android_view_GLES20Canvas_destroyLayer },
968    { "nDestroyLayerDeferred",   "(I)V",       (void*) android_view_GLES20Canvas_destroyLayerDeferred },
969    { "nFlushLayer",             "(I)V",       (void*) android_view_GLES20Canvas_flushLayer },
970    { "nDrawLayer",              "(IIFFI)V",   (void*) android_view_GLES20Canvas_drawLayer },
971    { "nCopyLayer",              "(II)Z",      (void*) android_view_GLES20Canvas_copyLayer },
972
973    { "nSetTextureLayerTransform", "(II)V",    (void*) android_view_GLES20Canvas_setTextureLayerTransform },
974
975    { "nGetMaximumTextureWidth",  "()I",       (void*) android_view_GLES20Canvas_getMaxTextureWidth },
976    { "nGetMaximumTextureHeight", "()I",       (void*) android_view_GLES20Canvas_getMaxTextureHeight },
977
978#endif
979};
980
981static JNINativeMethod gActivityThreadMethods[] = {
982    { "dumpGraphicsInfo",        "(Ljava/io/FileDescriptor;)V",
983                                               (void*) android_app_ActivityThread_dumpGraphics }
984};
985
986
987#ifdef USE_OPENGL_RENDERER
988    #define FIND_CLASS(var, className) \
989            var = env->FindClass(className); \
990            LOG_FATAL_IF(! var, "Unable to find class " className);
991
992    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
993            var = env->GetMethodID(clazz, methodName, methodDescriptor); \
994            LOG_FATAL_IF(! var, "Unable to find method " methodName);
995#else
996    #define FIND_CLASS(var, className)
997    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor)
998#endif
999
1000int register_android_view_GLES20Canvas(JNIEnv* env) {
1001    jclass clazz;
1002    FIND_CLASS(clazz, "android/graphics/Rect");
1003    GET_METHOD_ID(gRectClassInfo.set, clazz, "set", "(IIII)V");
1004
1005    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
1006}
1007
1008const char* const kActivityThreadPathName = "android/app/ActivityThread";
1009
1010int register_android_app_ActivityThread(JNIEnv* env) {
1011    return AndroidRuntime::registerNativeMethods(env, kActivityThreadPathName,
1012            gActivityThreadMethods, NELEM(gActivityThreadMethods));
1013}
1014
1015};
1016