android_view_GLES20Canvas.cpp revision 3b748a44c6bd2ea05fe16839caf73dbe50bd7ae9 
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 "jni.h"
20#include "GraphicsJNI.h"
21#include <nativehelper/JNIHelp.h>
22
23#include "android_view_GraphicBuffer.h"
24
25#include <android_runtime/AndroidRuntime.h>
26#include <android_runtime/android_graphics_SurfaceTexture.h>
27
28#include <androidfw/ResourceTypes.h>
29
30#include <gui/GLConsumer.h>
31
32#include <private/hwui/DrawGlInfo.h>
33
34#include <cutils/properties.h>
35
36#include <SkBitmap.h>
37#include <SkCanvas.h>
38#include <SkMatrix.h>
39#include <SkPaint.h>
40#include <SkRegion.h>
41#include <SkScalerContext.h>
42#include <SkTemplates.h>
43#include <SkXfermode.h>
44
45#include <DisplayList.h>
46#include <DisplayListRenderer.h>
47#include <LayerRenderer.h>
48#include <OpenGLRenderer.h>
49#include <SkiaShader.h>
50#include <SkiaColorFilter.h>
51#include <Stencil.h>
52#include <Rect.h>
53
54#include <TextLayout.h>
55#include <TextLayoutCache.h>
56
57namespace android {
58
59using namespace uirenderer;
60
61/**
62 * Note: OpenGLRenderer JNI layer is generated and compiled only on supported
63 *       devices. This means all the logic must be compiled only when the
64 *       preprocessor variable USE_OPENGL_RENDERER is defined.
65 */
66#ifdef USE_OPENGL_RENDERER
67
68// ----------------------------------------------------------------------------
69// Defines
70// ----------------------------------------------------------------------------
71
72// Debug
73#define DEBUG_RENDERER 0
74
75// Debug
76#if DEBUG_RENDERER
77    #define RENDERER_LOGD(...) ALOGD(__VA_ARGS__)
78#else
79    #define RENDERER_LOGD(...)
80#endif
81
82#define MODIFIER_SHADOW 1
83#define MODIFIER_SHADER 2
84#define MODIFIER_COLOR_FILTER 4
85
86// ----------------------------------------------------------------------------
87
88static struct {
89    jmethodID set;
90} gRectClassInfo;
91
92// ----------------------------------------------------------------------------
93// Caching
94// ----------------------------------------------------------------------------
95
96static void android_view_GLES20Canvas_flushCaches(JNIEnv* env, jobject clazz,
97        Caches::FlushMode mode) {
98    if (Caches::hasInstance()) {
99        Caches::getInstance().flush(mode);
100    }
101}
102
103static bool android_view_GLES20Canvas_initCaches(JNIEnv* env, jobject clazz) {
104    if (Caches::hasInstance()) {
105        return Caches::getInstance().init();
106    }
107    return false;
108}
109
110static void android_view_GLES20Canvas_terminateCaches(JNIEnv* env, jobject clazz) {
111    if (Caches::hasInstance()) {
112        Caches::getInstance().terminate();
113    }
114}
115
116// ----------------------------------------------------------------------------
117// Caching
118// ----------------------------------------------------------------------------
119
120static void android_view_GLES20Canvas_initAtlas(JNIEnv* env, jobject clazz,
121        jobject graphicBuffer, jintArray atlasMapArray, jint count) {
122
123    sp<GraphicBuffer> buffer = graphicBufferForJavaObject(env, graphicBuffer);
124    jint* atlasMap = env->GetIntArrayElements(atlasMapArray, NULL);
125
126    Caches::getInstance().assetAtlas.init(buffer, atlasMap, count);
127
128    env->ReleaseIntArrayElements(atlasMapArray, atlasMap, 0);
129}
130
131// ----------------------------------------------------------------------------
132// Constructors
133// ----------------------------------------------------------------------------
134
135static OpenGLRenderer* android_view_GLES20Canvas_createRenderer(JNIEnv* env, jobject clazz) {
136    RENDERER_LOGD("Create OpenGLRenderer");
137    OpenGLRenderer* renderer = new OpenGLRenderer();
138    renderer->initProperties();
139    return renderer;
140}
141
142static void android_view_GLES20Canvas_destroyRenderer(JNIEnv* env, jobject clazz,
143        OpenGLRenderer* renderer) {
144    RENDERER_LOGD("Destroy OpenGLRenderer");
145    delete renderer;
146}
147
148// ----------------------------------------------------------------------------
149// Setup
150// ----------------------------------------------------------------------------
151
152static void android_view_GLES20Canvas_setViewport(JNIEnv* env, jobject clazz,
153        OpenGLRenderer* renderer, jint width, jint height) {
154    renderer->setViewport(width, height);
155}
156
157static int android_view_GLES20Canvas_prepare(JNIEnv* env, jobject clazz,
158        OpenGLRenderer* renderer, jboolean opaque) {
159    return renderer->prepare(opaque);
160}
161
162static int android_view_GLES20Canvas_prepareDirty(JNIEnv* env, jobject clazz,
163        OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom,
164        jboolean opaque) {
165    return renderer->prepareDirty(left, top, right, bottom, opaque);
166}
167
168static void android_view_GLES20Canvas_finish(JNIEnv* env, jobject clazz,
169        OpenGLRenderer* renderer) {
170    renderer->finish();
171}
172
173static jint android_view_GLES20Canvas_getStencilSize(JNIEnv* env, jobject clazz) {
174    return Stencil::getStencilSize();
175}
176
177static void android_view_GLES20Canvas_setName(JNIEnv* env,
178        jobject clazz, OpenGLRenderer* renderer, jstring name) {
179    if (name != NULL) {
180        const char* textArray = env->GetStringUTFChars(name, NULL);
181        renderer->setName(textArray);
182        env->ReleaseStringUTFChars(name, textArray);
183    } else {
184        renderer->setName(NULL);
185    }
186}
187
188// ----------------------------------------------------------------------------
189// Functor
190// ----------------------------------------------------------------------------
191
192static jint android_view_GLES20Canvas_callDrawGLFunction(JNIEnv* env, jobject clazz,
193        OpenGLRenderer* renderer, Functor* functor) {
194    android::uirenderer::Rect dirty;
195    return renderer->callDrawGLFunction(functor, dirty);
196}
197
198static void android_view_GLES20Canvas_detachFunctor(JNIEnv* env,
199        jobject clazz, OpenGLRenderer* renderer, Functor* functor) {
200    renderer->detachFunctor(functor);
201}
202
203static void android_view_GLES20Canvas_attachFunctor(JNIEnv* env,
204        jobject clazz, OpenGLRenderer* renderer, Functor* functor) {
205    renderer->attachFunctor(functor);
206}
207
208static jint android_view_GLES20Canvas_invokeFunctors(JNIEnv* env,
209        jobject clazz, OpenGLRenderer* renderer, jobject dirty) {
210    android::uirenderer::Rect bounds;
211    status_t status = renderer->invokeFunctors(bounds);
212    if (status != DrawGlInfo::kStatusDone && dirty != NULL) {
213        env->CallVoidMethod(dirty, gRectClassInfo.set,
214                int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
215    }
216    return status;
217}
218
219// ----------------------------------------------------------------------------
220// Misc
221// ----------------------------------------------------------------------------
222
223static jint android_view_GLES20Canvas_getMaxTextureWidth(JNIEnv* env, jobject clazz) {
224    return Caches::getInstance().maxTextureSize;
225}
226
227static jint android_view_GLES20Canvas_getMaxTextureHeight(JNIEnv* env, jobject clazz) {
228    return Caches::getInstance().maxTextureSize;
229}
230
231// ----------------------------------------------------------------------------
232// State
233// ----------------------------------------------------------------------------
234
235static jint android_view_GLES20Canvas_save(JNIEnv* env, jobject clazz, OpenGLRenderer* renderer,
236        jint flags) {
237    return renderer->save(flags);
238}
239
240static jint android_view_GLES20Canvas_getSaveCount(JNIEnv* env, jobject clazz,
241        OpenGLRenderer* renderer) {
242    return renderer->getSaveCount();
243}
244
245static void android_view_GLES20Canvas_restore(JNIEnv* env, jobject clazz,
246        OpenGLRenderer* renderer) {
247    renderer->restore();
248}
249
250static void android_view_GLES20Canvas_restoreToCount(JNIEnv* env, jobject clazz,
251        OpenGLRenderer* renderer, jint saveCount) {
252    renderer->restoreToCount(saveCount);
253}
254
255// ----------------------------------------------------------------------------
256// Layers
257// ----------------------------------------------------------------------------
258
259static jint android_view_GLES20Canvas_saveLayer(JNIEnv* env, jobject clazz,
260        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
261        SkPaint* paint, jint saveFlags) {
262    return renderer->saveLayer(left, top, right, bottom, paint, saveFlags);
263}
264
265static jint android_view_GLES20Canvas_saveLayerClip(JNIEnv* env, jobject clazz,
266        OpenGLRenderer* renderer, SkPaint* paint, jint saveFlags) {
267    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
268    return renderer->saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom,
269            paint, saveFlags);
270}
271
272static jint android_view_GLES20Canvas_saveLayerAlpha(JNIEnv* env, jobject clazz,
273        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
274        jint alpha, jint saveFlags) {
275    return renderer->saveLayerAlpha(left, top, right, bottom, alpha, saveFlags);
276}
277
278static jint android_view_GLES20Canvas_saveLayerAlphaClip(JNIEnv* env, jobject clazz,
279        OpenGLRenderer* renderer, jint alpha, jint saveFlags) {
280    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
281    return renderer->saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom,
282            alpha, saveFlags);
283}
284
285// ----------------------------------------------------------------------------
286// Clipping
287// ----------------------------------------------------------------------------
288
289static bool android_view_GLES20Canvas_quickReject(JNIEnv* env, jobject clazz,
290        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom) {
291    return renderer->quickReject(left, top, right, bottom);
292}
293
294static bool android_view_GLES20Canvas_clipRectF(JNIEnv* env, jobject clazz,
295        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
296        SkRegion::Op op) {
297    return renderer->clipRect(left, top, right, bottom, op);
298}
299
300static bool android_view_GLES20Canvas_clipRect(JNIEnv* env, jobject clazz,
301        OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom,
302        SkRegion::Op op) {
303    return renderer->clipRect(float(left), float(top), float(right), float(bottom), op);
304}
305
306static bool android_view_GLES20Canvas_clipPath(JNIEnv* env, jobject clazz,
307        OpenGLRenderer* renderer, SkPath* path, SkRegion::Op op) {
308    return renderer->clipPath(path, op);
309}
310
311static bool android_view_GLES20Canvas_clipRegion(JNIEnv* env, jobject clazz,
312        OpenGLRenderer* renderer, SkRegion* region, SkRegion::Op op) {
313    return renderer->clipRegion(region, op);
314}
315
316static bool android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject clazz,
317        OpenGLRenderer* renderer, jobject rect) {
318    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
319
320    env->CallVoidMethod(rect, gRectClassInfo.set,
321            int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
322
323    return !bounds.isEmpty();
324}
325
326// ----------------------------------------------------------------------------
327// Transforms
328// ----------------------------------------------------------------------------
329
330static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject clazz,
331        OpenGLRenderer* renderer, jfloat dx, jfloat dy) {
332    renderer->translate(dx, dy);
333}
334
335static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject clazz,
336        OpenGLRenderer* renderer, jfloat degrees) {
337    renderer->rotate(degrees);
338}
339
340static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject clazz,
341        OpenGLRenderer* renderer, jfloat sx, jfloat sy) {
342    renderer->scale(sx, sy);
343}
344
345static void android_view_GLES20Canvas_skew(JNIEnv* env, jobject clazz,
346        OpenGLRenderer* renderer, jfloat sx, jfloat sy) {
347    renderer->skew(sx, sy);
348}
349
350static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject clazz,
351        OpenGLRenderer* renderer, SkMatrix* matrix) {
352    renderer->setMatrix(matrix);
353}
354
355static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject clazz,
356        OpenGLRenderer* renderer, SkMatrix* matrix) {
357    renderer->getMatrix(matrix);
358}
359
360static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject clazz,
361        OpenGLRenderer* renderer, SkMatrix* matrix) {
362    renderer->concatMatrix(matrix);
363}
364
365// ----------------------------------------------------------------------------
366// Drawing
367// ----------------------------------------------------------------------------
368
369static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject clazz,
370        OpenGLRenderer* renderer, SkBitmap* bitmap, jfloat left, jfloat top, SkPaint* paint) {
371    renderer->drawBitmap(bitmap, left, top, paint);
372}
373
374static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject clazz,
375        OpenGLRenderer* renderer, SkBitmap* bitmap,
376        float srcLeft, float srcTop, float srcRight, float srcBottom,
377        float dstLeft, float dstTop, float dstRight, float dstBottom, SkPaint* paint) {
378    renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom,
379            dstLeft, dstTop, dstRight, dstBottom, paint);
380}
381
382static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject clazz,
383        OpenGLRenderer* renderer, SkBitmap* bitmap, SkMatrix* matrix, SkPaint* paint) {
384    renderer->drawBitmap(bitmap, matrix, paint);
385}
386
387static void android_view_GLES20Canvas_drawBitmapData(JNIEnv* env, jobject clazz,
388        OpenGLRenderer* renderer, jintArray colors, jint offset, jint stride,
389        jfloat left, jfloat top, jint width, jint height, jboolean hasAlpha, SkPaint* paint) {
390    SkBitmap* bitmap = new SkBitmap;
391    bitmap->setConfig(hasAlpha ? SkBitmap::kARGB_8888_Config : SkBitmap::kRGB_565_Config,
392            width, height);
393
394    if (!bitmap->allocPixels()) {
395        delete bitmap;
396        return;
397    }
398
399    if (!GraphicsJNI::SetPixels(env, colors, offset, stride, 0, 0, width, height, *bitmap)) {
400        delete bitmap;
401        return;
402    }
403
404    renderer->drawBitmapData(bitmap, left, top, paint);
405
406    // If the renderer is a deferred renderer it will own the bitmap
407    if (!renderer->isDeferred()) {
408        delete bitmap;
409    }
410}
411
412static void android_view_GLES20Canvas_drawBitmapMesh(JNIEnv* env, jobject clazz,
413        OpenGLRenderer* renderer, SkBitmap* bitmap, jint meshWidth, jint meshHeight,
414         jfloatArray vertices, jint offset, jintArray colors, jint colorOffset, SkPaint* paint) {
415    jfloat* verticesArray = vertices ? env->GetFloatArrayElements(vertices, NULL) + offset : NULL;
416    jint* colorsArray = colors ? env->GetIntArrayElements(colors, NULL) + colorOffset : NULL;
417
418    renderer->drawBitmapMesh(bitmap, meshWidth, meshHeight, verticesArray, colorsArray, paint);
419
420    if (vertices) env->ReleaseFloatArrayElements(vertices, verticesArray, 0);
421    if (colors) env->ReleaseIntArrayElements(colors, colorsArray, 0);
422}
423
424static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject clazz,
425        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray chunks,
426        float left, float top, float right, float bottom, SkPaint* paint) {
427    jbyte* storage = env->GetByteArrayElements(chunks, NULL);
428    Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(storage);
429    Res_png_9patch::deserialize(patch);
430
431    renderer->drawPatch(bitmap, patch, left, top, right, bottom, paint);
432
433    env->ReleaseByteArrayElements(chunks, storage, 0);
434}
435
436static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject clazz,
437        OpenGLRenderer* renderer, jint color, SkXfermode::Mode mode) {
438    renderer->drawColor(color, mode);
439}
440
441static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject clazz,
442        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
443        SkPaint* paint) {
444    renderer->drawRect(left, top, right, bottom, paint);
445}
446
447static void android_view_GLES20Canvas_drawRoundRect(JNIEnv* env, jobject clazz,
448        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
449        jfloat rx, jfloat ry, SkPaint* paint) {
450    renderer->drawRoundRect(left, top, right, bottom, rx, ry, paint);
451}
452
453static void android_view_GLES20Canvas_drawCircle(JNIEnv* env, jobject clazz,
454        OpenGLRenderer* renderer, jfloat x, jfloat y, jfloat radius, SkPaint* paint) {
455    renderer->drawCircle(x, y, radius, paint);
456}
457
458static void android_view_GLES20Canvas_drawOval(JNIEnv* env, jobject clazz,
459        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
460        SkPaint* paint) {
461    renderer->drawOval(left, top, right, bottom, paint);
462}
463
464static void android_view_GLES20Canvas_drawArc(JNIEnv* env, jobject clazz,
465        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
466        jfloat startAngle, jfloat sweepAngle, jboolean useCenter, SkPaint* paint) {
467    renderer->drawArc(left, top, right, bottom, startAngle, sweepAngle, useCenter, paint);
468}
469
470static void android_view_GLES20Canvas_drawRegionAsRects(JNIEnv* env, jobject clazz,
471        OpenGLRenderer* renderer, SkRegion* region, SkPaint* paint) {
472    if (paint->getStyle() != SkPaint::kFill_Style ||
473            (paint->isAntiAlias() && !renderer->isCurrentTransformSimple())) {
474        SkRegion::Iterator it(*region);
475        while (!it.done()) {
476            const SkIRect& r = it.rect();
477            renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint);
478            it.next();
479        }
480    } else {
481        int count = 0;
482        Vector<float> rects;
483        SkRegion::Iterator it(*region);
484        while (!it.done()) {
485            const SkIRect& r = it.rect();
486            rects.push(r.fLeft);
487            rects.push(r.fTop);
488            rects.push(r.fRight);
489            rects.push(r.fBottom);
490            count += 4;
491            it.next();
492        }
493        renderer->drawRects(rects.array(), count, paint);
494    }
495}
496
497static void android_view_GLES20Canvas_drawRects(JNIEnv* env, jobject clazz,
498        OpenGLRenderer* renderer, jfloatArray rects, jint count, SkPaint* paint) {
499    jfloat* storage = env->GetFloatArrayElements(rects, NULL);
500    renderer->drawRects(storage, count, paint);
501    env->ReleaseFloatArrayElements(rects, storage, 0);
502}
503
504static void android_view_GLES20Canvas_drawPoints(JNIEnv* env, jobject clazz,
505        OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) {
506    jfloat* storage = env->GetFloatArrayElements(points, NULL);
507    renderer->drawPoints(storage + offset, count, paint);
508    env->ReleaseFloatArrayElements(points, storage, 0);
509}
510
511static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject clazz,
512        OpenGLRenderer* renderer, SkPath* path, SkPaint* paint) {
513    renderer->drawPath(path, paint);
514}
515
516static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject clazz,
517        OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) {
518    jfloat* storage = env->GetFloatArrayElements(points, NULL);
519    renderer->drawLines(storage + offset, count, paint);
520    env->ReleaseFloatArrayElements(points, storage, 0);
521}
522
523// ----------------------------------------------------------------------------
524// Shaders and color filters
525// ----------------------------------------------------------------------------
526
527static void android_view_GLES20Canvas_resetModifiers(JNIEnv* env, jobject clazz,
528        OpenGLRenderer* renderer, jint modifiers) {
529    if (modifiers & MODIFIER_SHADOW) renderer->resetShadow();
530    if (modifiers & MODIFIER_SHADER) renderer->resetShader();
531    if (modifiers & MODIFIER_COLOR_FILTER) renderer->resetColorFilter();
532}
533
534static void android_view_GLES20Canvas_setupShader(JNIEnv* env, jobject clazz,
535        OpenGLRenderer* renderer, SkiaShader* shader) {
536    renderer->setupShader(shader);
537}
538
539static void android_view_GLES20Canvas_setupColorFilter(JNIEnv* env, jobject clazz,
540        OpenGLRenderer* renderer, SkiaColorFilter* filter) {
541    renderer->setupColorFilter(filter);
542}
543
544static void android_view_GLES20Canvas_setupShadow(JNIEnv* env, jobject clazz,
545        OpenGLRenderer* renderer, jfloat radius, jfloat dx, jfloat dy, jint color) {
546    renderer->setupShadow(radius, dx, dy, color);
547}
548
549// ----------------------------------------------------------------------------
550// Draw filters
551// ----------------------------------------------------------------------------
552
553static void android_view_GLES20Canvas_setupPaintFilter(JNIEnv* env, jobject clazz,
554        OpenGLRenderer* renderer, jint clearBits, jint setBits) {
555    renderer->setupPaintFilter(clearBits, setBits);
556}
557
558static void android_view_GLES20Canvas_resetPaintFilter(JNIEnv* env, jobject clazz,
559        OpenGLRenderer* renderer) {
560    renderer->resetPaintFilter();
561}
562
563// ----------------------------------------------------------------------------
564// Text
565// ----------------------------------------------------------------------------
566
567static void renderText(OpenGLRenderer* renderer, const jchar* text, int count,
568        jfloat x, jfloat y, int flags, SkPaint* paint) {
569    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
570            text, 0, count, count, flags);
571    if (value == NULL) {
572        return;
573    }
574    const jchar* glyphs = value->getGlyphs();
575    size_t glyphsCount = value->getGlyphsCount();
576    jfloat totalAdvance = value->getTotalAdvance();
577    const float* positions = value->getPos();
578    int bytesCount = glyphsCount * sizeof(jchar);
579    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount, x, y,
580            positions, paint, totalAdvance);
581}
582
583static void renderTextOnPath(OpenGLRenderer* renderer, const jchar* text, int count,
584        SkPath* path, jfloat hOffset, jfloat vOffset, int flags, SkPaint* paint) {
585    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
586            text, 0, count, count, flags);
587    if (value == NULL) {
588        return;
589    }
590    const jchar* glyphs = value->getGlyphs();
591    size_t glyphsCount = value->getGlyphsCount();
592    int bytesCount = glyphsCount * sizeof(jchar);
593    renderer->drawTextOnPath((const char*) glyphs, bytesCount, glyphsCount, path,
594            hOffset, vOffset, paint);
595}
596
597static void renderTextRun(OpenGLRenderer* renderer, const jchar* text,
598        jint start, jint count, jint contextCount, jfloat x, jfloat y,
599        int flags, SkPaint* paint) {
600    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
601            text, start, count, contextCount, flags);
602    if (value == NULL) {
603        return;
604    }
605    const jchar* glyphs = value->getGlyphs();
606    size_t glyphsCount = value->getGlyphsCount();
607    jfloat totalAdvance = value->getTotalAdvance();
608    const float* positions = value->getPos();
609    int bytesCount = glyphsCount * sizeof(jchar);
610    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount, x, y,
611            positions, paint, totalAdvance);
612}
613
614static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject clazz,
615        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
616        jfloat x, jfloat y, jint flags, SkPaint* paint) {
617    jchar* textArray = env->GetCharArrayElements(text, NULL);
618    renderText(renderer, textArray + index, count, x, y, flags, paint);
619    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
620}
621
622static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject clazz,
623        OpenGLRenderer* renderer, jstring text, jint start, jint end,
624        jfloat x, jfloat y, jint flags, SkPaint* paint) {
625    const jchar* textArray = env->GetStringChars(text, NULL);
626    renderText(renderer, textArray + start, end - start, x, y, flags, paint);
627    env->ReleaseStringChars(text, textArray);
628}
629
630static void android_view_GLES20Canvas_drawTextArrayOnPath(JNIEnv* env, jobject clazz,
631        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
632        SkPath* path, jfloat hOffset, jfloat vOffset, jint flags, SkPaint* paint) {
633    jchar* textArray = env->GetCharArrayElements(text, NULL);
634    renderTextOnPath(renderer, textArray + index, count, path,
635            hOffset, vOffset, flags, paint);
636    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
637}
638
639static void android_view_GLES20Canvas_drawTextOnPath(JNIEnv* env, jobject clazz,
640        OpenGLRenderer* renderer, jstring text, jint start, jint end,
641        SkPath* path, jfloat hOffset, jfloat vOffset, jint flags, SkPaint* paint) {
642    const jchar* textArray = env->GetStringChars(text, NULL);
643    renderTextOnPath(renderer, textArray + start, end - start, path,
644            hOffset, vOffset, flags, paint);
645    env->ReleaseStringChars(text, textArray);
646}
647
648static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject clazz,
649        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
650        jint contextIndex, jint contextCount, jfloat x, jfloat y, jint dirFlags,
651        SkPaint* paint) {
652    jchar* textArray = env->GetCharArrayElements(text, NULL);
653    renderTextRun(renderer, textArray + contextIndex, index - contextIndex,
654            count, contextCount, x, y, dirFlags, paint);
655    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
656 }
657
658static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject clazz,
659        OpenGLRenderer* renderer, jstring text, jint start, jint end,
660        jint contextStart, int contextEnd, jfloat x, jfloat y, jint dirFlags,
661        SkPaint* paint) {
662    const jchar* textArray = env->GetStringChars(text, NULL);
663    jint count = end - start;
664    jint contextCount = contextEnd - contextStart;
665    renderTextRun(renderer, textArray + contextStart, start - contextStart,
666            count, contextCount, x, y, dirFlags, paint);
667    env->ReleaseStringChars(text, textArray);
668}
669
670static void renderPosText(OpenGLRenderer* renderer, const jchar* text, int count,
671        const jfloat* positions, jint dirFlags, SkPaint* paint) {
672    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
673            text, 0, count, count, dirFlags);
674    if (value == NULL) {
675        return;
676    }
677    const jchar* glyphs = value->getGlyphs();
678    size_t glyphsCount = value->getGlyphsCount();
679    if (count < int(glyphsCount)) glyphsCount = count;
680    int bytesCount = glyphsCount * sizeof(jchar);
681
682    renderer->drawPosText((const char*) glyphs, bytesCount, glyphsCount, positions, paint);
683}
684
685static void android_view_GLES20Canvas_drawPosTextArray(JNIEnv* env, jobject clazz,
686        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
687        jfloatArray pos, SkPaint* paint) {
688    jchar* textArray = env->GetCharArrayElements(text, NULL);
689    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
690
691    renderPosText(renderer, textArray + index, count, positions, kBidi_LTR, paint);
692
693    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
694    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
695}
696
697static void android_view_GLES20Canvas_drawPosText(JNIEnv* env, jobject clazz,
698        OpenGLRenderer* renderer, jstring text, jint start, jint end,
699        jfloatArray pos, SkPaint* paint) {
700    const jchar* textArray = env->GetStringChars(text, NULL);
701    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
702
703    renderPosText(renderer, textArray + start, end - start, positions, kBidi_LTR, paint);
704
705    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
706    env->ReleaseStringChars(text, textArray);
707}
708
709// ----------------------------------------------------------------------------
710// Display lists
711// ----------------------------------------------------------------------------
712
713static DisplayList* android_view_GLES20Canvas_getDisplayList(JNIEnv* env,
714        jobject clazz, DisplayListRenderer* renderer, DisplayList* displayList) {
715    return renderer->getDisplayList(displayList);
716}
717
718static OpenGLRenderer* android_view_GLES20Canvas_createDisplayListRenderer(JNIEnv* env,
719        jobject clazz) {
720    return new DisplayListRenderer;
721}
722
723static void android_view_GLES20Canvas_resetDisplayListRenderer(JNIEnv* env,
724        jobject clazz, DisplayListRenderer* renderer) {
725    renderer->reset();
726}
727
728static jint android_view_GLES20Canvas_drawDisplayList(JNIEnv* env,
729        jobject clazz, OpenGLRenderer* renderer, DisplayList* displayList,
730        jobject dirty, jint flags) {
731    android::uirenderer::Rect bounds;
732    status_t status = renderer->drawDisplayList(displayList, bounds, flags);
733    if (status != DrawGlInfo::kStatusDone && dirty != NULL) {
734        env->CallVoidMethod(dirty, gRectClassInfo.set,
735                int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
736    }
737    return status;
738}
739
740static void android_view_GLES20Canvas_outputDisplayList(JNIEnv* env,
741        jobject clazz, OpenGLRenderer* renderer, DisplayList* displayList) {
742    renderer->outputDisplayList(displayList);
743}
744
745// ----------------------------------------------------------------------------
746// Layers
747// ----------------------------------------------------------------------------
748
749static void android_view_GLES20Canvas_interrupt(JNIEnv* env, jobject clazz,
750        OpenGLRenderer* renderer) {
751    renderer->interrupt();
752}
753
754static void android_view_GLES20Canvas_resume(JNIEnv* env, jobject clazz,
755        OpenGLRenderer* renderer) {
756    renderer->resume();
757}
758
759static OpenGLRenderer* android_view_GLES20Canvas_createLayerRenderer(JNIEnv* env,
760        jobject clazz, Layer* layer) {
761    if (layer) {
762        OpenGLRenderer* renderer = new LayerRenderer(layer);
763        renderer->initProperties();
764        return renderer;
765    }
766    return NULL;
767}
768
769static Layer* android_view_GLES20Canvas_createTextureLayer(JNIEnv* env, jobject clazz,
770        jboolean isOpaque, jintArray layerInfo) {
771    Layer* layer = LayerRenderer::createTextureLayer(isOpaque);
772
773    if (layer) {
774        jint* storage = env->GetIntArrayElements(layerInfo, NULL);
775        storage[0] = layer->getTexture();
776        env->ReleaseIntArrayElements(layerInfo, storage, 0);
777    }
778
779    return layer;
780}
781
782static Layer* android_view_GLES20Canvas_createLayer(JNIEnv* env, jobject clazz,
783        jint width, jint height, jboolean isOpaque, jintArray layerInfo) {
784    Layer* layer = LayerRenderer::createLayer(width, height, isOpaque);
785
786    if (layer) {
787        jint* storage = env->GetIntArrayElements(layerInfo, NULL);
788        storage[0] = layer->getWidth();
789        storage[1] = layer->getHeight();
790        env->ReleaseIntArrayElements(layerInfo, storage, 0);
791    }
792
793    return layer;
794}
795
796static bool android_view_GLES20Canvas_resizeLayer(JNIEnv* env, jobject clazz,
797        Layer* layer, jint width, jint height, jintArray layerInfo) {
798    if (LayerRenderer::resizeLayer(layer, width, height)) {
799        jint* storage = env->GetIntArrayElements(layerInfo, NULL);
800        storage[0] = layer->getWidth();
801        storage[1] = layer->getHeight();
802        env->ReleaseIntArrayElements(layerInfo, storage, 0);
803        return true;
804    }
805    return false;
806}
807
808static void android_view_GLES20Canvas_setLayerPaint(JNIEnv* env, jobject clazz,
809        Layer* layer, SkPaint* paint) {
810    if (layer) {
811        layer->setPaint(paint);
812    }
813}
814
815static void android_view_GLES20Canvas_setLayerColorFilter(JNIEnv* env, jobject clazz,
816        Layer* layer, SkiaColorFilter* colorFilter) {
817    if (layer) {
818        layer->setColorFilter(colorFilter);
819    }
820}
821
822static void android_view_GLES20Canvas_setOpaqueLayer(JNIEnv* env, jobject clazz,
823        Layer* layer, jboolean isOpaque) {
824    if (layer) {
825        layer->setBlend(!isOpaque);
826    }
827}
828
829static void android_view_GLES20Canvas_updateTextureLayer(JNIEnv* env, jobject clazz,
830        Layer* layer, jint width, jint height, jboolean isOpaque, jobject surface) {
831    float transform[16];
832    sp<GLConsumer> surfaceTexture(SurfaceTexture_getSurfaceTexture(env, surface));
833
834    if (surfaceTexture->updateTexImage() == NO_ERROR) {
835        surfaceTexture->getTransformMatrix(transform);
836        GLenum renderTarget = surfaceTexture->getCurrentTextureTarget();
837
838        LayerRenderer::updateTextureLayer(layer, width, height, isOpaque, renderTarget, transform);
839    }
840}
841
842static void android_view_GLES20Canvas_updateRenderLayer(JNIEnv* env, jobject clazz,
843        Layer* layer, OpenGLRenderer* renderer, DisplayList* displayList,
844        jint left, jint top, jint right, jint bottom) {
845    layer->updateDeferred(renderer, displayList, left, top, right, bottom);
846}
847
848static void android_view_GLES20Canvas_clearLayerTexture(JNIEnv* env, jobject clazz,
849        Layer* layer) {
850    layer->clearTexture();
851}
852
853static void android_view_GLES20Canvas_setTextureLayerTransform(JNIEnv* env, jobject clazz,
854        Layer* layer, SkMatrix* matrix) {
855    layer->getTransform().load(*matrix);
856}
857
858static void android_view_GLES20Canvas_destroyLayer(JNIEnv* env, jobject clazz, Layer* layer) {
859    LayerRenderer::destroyLayer(layer);
860}
861
862static void android_view_GLES20Canvas_destroyLayerDeferred(JNIEnv* env,
863        jobject clazz, Layer* layer) {
864    LayerRenderer::destroyLayerDeferred(layer);
865}
866
867static void android_view_GLES20Canvas_drawLayer(JNIEnv* env, jobject clazz,
868        OpenGLRenderer* renderer, Layer* layer, jfloat x, jfloat y) {
869    renderer->drawLayer(layer, x, y);
870}
871
872static jboolean android_view_GLES20Canvas_copyLayer(JNIEnv* env, jobject clazz,
873        Layer* layer, SkBitmap* bitmap) {
874    return LayerRenderer::copyLayer(layer, bitmap);
875}
876
877static void android_view_GLES20Canvas_pushLayerUpdate(JNIEnv* env, jobject clazz,
878        OpenGLRenderer* renderer, Layer* layer) {
879    renderer->pushLayerUpdate(layer);
880}
881
882static void android_view_GLES20Canvas_clearLayerUpdates(JNIEnv* env, jobject clazz,
883        OpenGLRenderer* renderer) {
884    renderer->clearLayerUpdates();
885}
886
887#endif // USE_OPENGL_RENDERER
888
889// ----------------------------------------------------------------------------
890// Common
891// ----------------------------------------------------------------------------
892
893static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) {
894#ifdef USE_OPENGL_RENDERER
895    char prop[PROPERTY_VALUE_MAX];
896    if (property_get("ro.kernel.qemu", prop, NULL) == 0) {
897        // not in the emulator
898        return JNI_TRUE;
899    }
900    // In the emulator this property will be set to 1 when hardware GLES is
901    // enabled, 0 otherwise. On old emulator versions it will be undefined.
902    property_get("ro.kernel.qemu.gles", prop, "0");
903    return atoi(prop) == 1 ? JNI_TRUE : JNI_FALSE;
904#else
905    return JNI_FALSE;
906#endif
907}
908
909// ----------------------------------------------------------------------------
910// Logging
911// ----------------------------------------------------------------------------
912
913static void
914android_app_ActivityThread_dumpGraphics(JNIEnv* env, jobject clazz, jobject javaFileDescriptor) {
915#ifdef USE_OPENGL_RENDERER
916    int fd = jniGetFDFromFileDescriptor(env, javaFileDescriptor);
917    android::uirenderer::DisplayList::outputLogBuffer(fd);
918#endif // USE_OPENGL_RENDERER
919}
920
921// ----------------------------------------------------------------------------
922// JNI Glue
923// ----------------------------------------------------------------------------
924
925const char* const kClassPathName = "android/view/GLES20Canvas";
926
927static JNINativeMethod gMethods[] = {
928    { "nIsAvailable",       "()Z",             (void*) android_view_GLES20Canvas_isAvailable },
929
930#ifdef USE_OPENGL_RENDERER
931    { "nFlushCaches",       "(I)V",            (void*) android_view_GLES20Canvas_flushCaches },
932    { "nInitCaches",        "()Z",             (void*) android_view_GLES20Canvas_initCaches },
933    { "nTerminateCaches",   "()V",             (void*) android_view_GLES20Canvas_terminateCaches },
934
935    { "nInitAtlas",         "(Landroid/view/GraphicBuffer;[II)V",
936            (void*) android_view_GLES20Canvas_initAtlas },
937
938    { "nCreateRenderer",    "()I",             (void*) android_view_GLES20Canvas_createRenderer },
939    { "nDestroyRenderer",   "(I)V",            (void*) android_view_GLES20Canvas_destroyRenderer },
940    { "nSetViewport",       "(III)V",          (void*) android_view_GLES20Canvas_setViewport },
941    { "nPrepare",           "(IZ)I",           (void*) android_view_GLES20Canvas_prepare },
942    { "nPrepareDirty",      "(IIIIIZ)I",       (void*) android_view_GLES20Canvas_prepareDirty },
943    { "nFinish",            "(I)V",            (void*) android_view_GLES20Canvas_finish },
944    { "nSetName",           "(ILjava/lang/String;)V",
945            (void*) android_view_GLES20Canvas_setName },
946
947    { "nGetStencilSize",    "()I",             (void*) android_view_GLES20Canvas_getStencilSize },
948
949    { "nCallDrawGLFunction", "(II)I",          (void*) android_view_GLES20Canvas_callDrawGLFunction },
950    { "nDetachFunctor",      "(II)V",          (void*) android_view_GLES20Canvas_detachFunctor },
951    { "nAttachFunctor",      "(II)V",          (void*) android_view_GLES20Canvas_attachFunctor },
952    { "nInvokeFunctors",     "(ILandroid/graphics/Rect;)I",
953            (void*) android_view_GLES20Canvas_invokeFunctors },
954
955    { "nSave",              "(II)I",           (void*) android_view_GLES20Canvas_save },
956    { "nRestore",           "(I)V",            (void*) android_view_GLES20Canvas_restore },
957    { "nRestoreToCount",    "(II)V",           (void*) android_view_GLES20Canvas_restoreToCount },
958    { "nGetSaveCount",      "(I)I",            (void*) android_view_GLES20Canvas_getSaveCount },
959
960    { "nSaveLayer",         "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayer },
961    { "nSaveLayer",         "(III)I",          (void*) android_view_GLES20Canvas_saveLayerClip },
962    { "nSaveLayerAlpha",    "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayerAlpha },
963    { "nSaveLayerAlpha",    "(III)I",          (void*) android_view_GLES20Canvas_saveLayerAlphaClip },
964
965    { "nQuickReject",       "(IFFFF)Z",        (void*) android_view_GLES20Canvas_quickReject },
966    { "nClipRect",          "(IFFFFI)Z",       (void*) android_view_GLES20Canvas_clipRectF },
967    { "nClipRect",          "(IIIIII)Z",       (void*) android_view_GLES20Canvas_clipRect },
968    { "nClipPath",          "(III)Z",          (void*) android_view_GLES20Canvas_clipPath },
969    { "nClipRegion",        "(III)Z",          (void*) android_view_GLES20Canvas_clipRegion },
970
971    { "nTranslate",         "(IFF)V",          (void*) android_view_GLES20Canvas_translate },
972    { "nRotate",            "(IF)V",           (void*) android_view_GLES20Canvas_rotate },
973    { "nScale",             "(IFF)V",          (void*) android_view_GLES20Canvas_scale },
974    { "nSkew",              "(IFF)V",          (void*) android_view_GLES20Canvas_skew },
975
976    { "nSetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_setMatrix },
977    { "nGetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_getMatrix },
978    { "nConcatMatrix",      "(II)V",           (void*) android_view_GLES20Canvas_concatMatrix },
979
980    { "nDrawBitmap",        "(IIFFI)V",        (void*) android_view_GLES20Canvas_drawBitmap },
981    { "nDrawBitmap",        "(IIFFFFFFFFI)V",  (void*) android_view_GLES20Canvas_drawBitmapRect },
982    { "nDrawBitmap",        "(IIII)V",         (void*) android_view_GLES20Canvas_drawBitmapMatrix },
983    { "nDrawBitmap",        "(I[IIIFFIIZI)V",  (void*) android_view_GLES20Canvas_drawBitmapData },
984
985    { "nDrawBitmapMesh",    "(IIII[FI[III)V",  (void*) android_view_GLES20Canvas_drawBitmapMesh },
986
987    { "nDrawPatch",         "(II[BFFFFI)V",    (void*) android_view_GLES20Canvas_drawPatch },
988
989    { "nDrawColor",         "(III)V",          (void*) android_view_GLES20Canvas_drawColor },
990    { "nDrawRect",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawRect },
991    { "nDrawRects",         "(III)V",          (void*) android_view_GLES20Canvas_drawRegionAsRects },
992    { "nDrawRects",         "(I[FII)V",        (void*) android_view_GLES20Canvas_drawRects },
993    { "nDrawRoundRect",     "(IFFFFFFI)V",     (void*) android_view_GLES20Canvas_drawRoundRect },
994    { "nDrawCircle",        "(IFFFI)V",        (void*) android_view_GLES20Canvas_drawCircle },
995    { "nDrawOval",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawOval },
996    { "nDrawArc",           "(IFFFFFFZI)V",    (void*) android_view_GLES20Canvas_drawArc },
997    { "nDrawPoints",        "(I[FIII)V",       (void*) android_view_GLES20Canvas_drawPoints },
998
999    { "nDrawPath",          "(III)V",          (void*) android_view_GLES20Canvas_drawPath },
1000    { "nDrawLines",         "(I[FIII)V",       (void*) android_view_GLES20Canvas_drawLines },
1001
1002    { "nResetModifiers",    "(II)V",           (void*) android_view_GLES20Canvas_resetModifiers },
1003    { "nSetupShader",       "(II)V",           (void*) android_view_GLES20Canvas_setupShader },
1004    { "nSetupColorFilter",  "(II)V",           (void*) android_view_GLES20Canvas_setupColorFilter },
1005    { "nSetupShadow",       "(IFFFI)V",        (void*) android_view_GLES20Canvas_setupShadow },
1006
1007    { "nSetupPaintFilter",  "(III)V",          (void*) android_view_GLES20Canvas_setupPaintFilter },
1008    { "nResetPaintFilter",  "(I)V",            (void*) android_view_GLES20Canvas_resetPaintFilter },
1009
1010    { "nDrawText",          "(I[CIIFFII)V",    (void*) android_view_GLES20Canvas_drawTextArray },
1011    { "nDrawText",          "(ILjava/lang/String;IIFFII)V",
1012            (void*) android_view_GLES20Canvas_drawText },
1013
1014    { "nDrawTextOnPath",    "(I[CIIIFFII)V",   (void*) android_view_GLES20Canvas_drawTextArrayOnPath },
1015    { "nDrawTextOnPath",    "(ILjava/lang/String;IIIFFII)V",
1016            (void*) android_view_GLES20Canvas_drawTextOnPath },
1017
1018    { "nDrawTextRun",       "(I[CIIIIFFII)V",  (void*) android_view_GLES20Canvas_drawTextRunArray },
1019    { "nDrawTextRun",       "(ILjava/lang/String;IIIIFFII)V",
1020            (void*) android_view_GLES20Canvas_drawTextRun },
1021
1022    { "nDrawPosText",       "(I[CII[FI)V",     (void*) android_view_GLES20Canvas_drawPosTextArray },
1023    { "nDrawPosText",       "(ILjava/lang/String;II[FI)V",
1024            (void*) android_view_GLES20Canvas_drawPosText },
1025
1026    { "nGetClipBounds",     "(ILandroid/graphics/Rect;)Z",
1027            (void*) android_view_GLES20Canvas_getClipBounds },
1028
1029    { "nGetDisplayList",         "(II)I",      (void*) android_view_GLES20Canvas_getDisplayList },
1030    { "nOutputDisplayList",      "(II)V",      (void*) android_view_GLES20Canvas_outputDisplayList },
1031    { "nDrawDisplayList",        "(IILandroid/graphics/Rect;I)I",
1032            (void*) android_view_GLES20Canvas_drawDisplayList },
1033
1034    { "nCreateDisplayListRenderer", "()I",     (void*) android_view_GLES20Canvas_createDisplayListRenderer },
1035    { "nResetDisplayListRenderer",  "(I)V",    (void*) android_view_GLES20Canvas_resetDisplayListRenderer },
1036
1037    { "nInterrupt",              "(I)V",       (void*) android_view_GLES20Canvas_interrupt },
1038    { "nResume",                 "(I)V",       (void*) android_view_GLES20Canvas_resume },
1039
1040    { "nCreateLayerRenderer",    "(I)I",       (void*) android_view_GLES20Canvas_createLayerRenderer },
1041    { "nCreateLayer",            "(IIZ[I)I",   (void*) android_view_GLES20Canvas_createLayer },
1042    { "nResizeLayer",            "(III[I)Z" ,  (void*) android_view_GLES20Canvas_resizeLayer },
1043    { "nSetLayerPaint",          "(II)V",      (void*) android_view_GLES20Canvas_setLayerPaint },
1044    { "nSetLayerColorFilter",    "(II)V",      (void*) android_view_GLES20Canvas_setLayerColorFilter },
1045    { "nSetOpaqueLayer",         "(IZ)V",      (void*) android_view_GLES20Canvas_setOpaqueLayer },
1046    { "nCreateTextureLayer",     "(Z[I)I",     (void*) android_view_GLES20Canvas_createTextureLayer },
1047    { "nUpdateTextureLayer",     "(IIIZLandroid/graphics/SurfaceTexture;)V",
1048            (void*) android_view_GLES20Canvas_updateTextureLayer },
1049    { "nUpdateRenderLayer",      "(IIIIIII)V", (void*) android_view_GLES20Canvas_updateRenderLayer },
1050    { "nClearLayerTexture",      "(I)V",       (void*) android_view_GLES20Canvas_clearLayerTexture },
1051    { "nDestroyLayer",           "(I)V",       (void*) android_view_GLES20Canvas_destroyLayer },
1052    { "nDestroyLayerDeferred",   "(I)V",       (void*) android_view_GLES20Canvas_destroyLayerDeferred },
1053    { "nDrawLayer",              "(IIFF)V",    (void*) android_view_GLES20Canvas_drawLayer },
1054    { "nCopyLayer",              "(II)Z",      (void*) android_view_GLES20Canvas_copyLayer },
1055    { "nClearLayerUpdates",      "(I)V",       (void*) android_view_GLES20Canvas_clearLayerUpdates },
1056    { "nPushLayerUpdate",        "(II)V",      (void*) android_view_GLES20Canvas_pushLayerUpdate },
1057
1058    { "nSetTextureLayerTransform", "(II)V",    (void*) android_view_GLES20Canvas_setTextureLayerTransform },
1059
1060    { "nGetMaximumTextureWidth",  "()I",       (void*) android_view_GLES20Canvas_getMaxTextureWidth },
1061    { "nGetMaximumTextureHeight", "()I",       (void*) android_view_GLES20Canvas_getMaxTextureHeight },
1062
1063#endif
1064};
1065
1066static JNINativeMethod gActivityThreadMethods[] = {
1067    { "dumpGraphicsInfo",        "(Ljava/io/FileDescriptor;)V",
1068                                               (void*) android_app_ActivityThread_dumpGraphics }
1069};
1070
1071
1072#ifdef USE_OPENGL_RENDERER
1073    #define FIND_CLASS(var, className) \
1074            var = env->FindClass(className); \
1075            LOG_FATAL_IF(! var, "Unable to find class " className);
1076
1077    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
1078            var = env->GetMethodID(clazz, methodName, methodDescriptor); \
1079            LOG_FATAL_IF(! var, "Unable to find method " methodName);
1080#else
1081    #define FIND_CLASS(var, className)
1082    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor)
1083#endif
1084
1085int register_android_view_GLES20Canvas(JNIEnv* env) {
1086    jclass clazz;
1087    FIND_CLASS(clazz, "android/graphics/Rect");
1088    GET_METHOD_ID(gRectClassInfo.set, clazz, "set", "(IIII)V");
1089
1090    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
1091}
1092
1093const char* const kActivityThreadPathName = "android/app/ActivityThread";
1094
1095int register_android_app_ActivityThread(JNIEnv* env) {
1096    return AndroidRuntime::registerNativeMethods(env, kActivityThreadPathName,
1097            gActivityThreadMethods, NELEM(gActivityThreadMethods));
1098}
1099
1100};
1101