android_view_GLES20Canvas.cpp revision 78dd96d5af20f489f0e8b288617d57774ec284f7 
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
188static void android_view_GLES20Canvas_setCountOverdrawEnabled(JNIEnv* env, jobject clazz,
189        OpenGLRenderer* renderer, jboolean enabled) {
190    renderer->setCountOverdrawEnabled(enabled);
191}
192
193static jfloat android_view_GLES20Canvas_getOverdraw(JNIEnv* env, jobject clazz,
194        OpenGLRenderer* renderer) {
195    return renderer->getOverdraw();
196}
197
198// ----------------------------------------------------------------------------
199// Functor
200// ----------------------------------------------------------------------------
201
202static jint android_view_GLES20Canvas_callDrawGLFunction(JNIEnv* env, jobject clazz,
203        OpenGLRenderer* renderer, Functor* functor) {
204    android::uirenderer::Rect dirty;
205    return renderer->callDrawGLFunction(functor, dirty);
206}
207
208static void android_view_GLES20Canvas_detachFunctor(JNIEnv* env,
209        jobject clazz, OpenGLRenderer* renderer, Functor* functor) {
210    renderer->detachFunctor(functor);
211}
212
213static void android_view_GLES20Canvas_attachFunctor(JNIEnv* env,
214        jobject clazz, OpenGLRenderer* renderer, Functor* functor) {
215    renderer->attachFunctor(functor);
216}
217
218static jint android_view_GLES20Canvas_invokeFunctors(JNIEnv* env,
219        jobject clazz, OpenGLRenderer* renderer, jobject dirty) {
220    android::uirenderer::Rect bounds;
221    status_t status = renderer->invokeFunctors(bounds);
222    if (status != DrawGlInfo::kStatusDone && dirty != NULL) {
223        env->CallVoidMethod(dirty, gRectClassInfo.set,
224                int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
225    }
226    return status;
227}
228
229// ----------------------------------------------------------------------------
230// Misc
231// ----------------------------------------------------------------------------
232
233static jint android_view_GLES20Canvas_getMaxTextureWidth(JNIEnv* env, jobject clazz) {
234    return Caches::getInstance().maxTextureSize;
235}
236
237static jint android_view_GLES20Canvas_getMaxTextureHeight(JNIEnv* env, jobject clazz) {
238    return Caches::getInstance().maxTextureSize;
239}
240
241// ----------------------------------------------------------------------------
242// State
243// ----------------------------------------------------------------------------
244
245static jint android_view_GLES20Canvas_save(JNIEnv* env, jobject clazz, OpenGLRenderer* renderer,
246        jint flags) {
247    return renderer->save(flags);
248}
249
250static jint android_view_GLES20Canvas_getSaveCount(JNIEnv* env, jobject clazz,
251        OpenGLRenderer* renderer) {
252    return renderer->getSaveCount();
253}
254
255static void android_view_GLES20Canvas_restore(JNIEnv* env, jobject clazz,
256        OpenGLRenderer* renderer) {
257    renderer->restore();
258}
259
260static void android_view_GLES20Canvas_restoreToCount(JNIEnv* env, jobject clazz,
261        OpenGLRenderer* renderer, jint saveCount) {
262    renderer->restoreToCount(saveCount);
263}
264
265// ----------------------------------------------------------------------------
266// Layers
267// ----------------------------------------------------------------------------
268
269static jint android_view_GLES20Canvas_saveLayer(JNIEnv* env, jobject clazz,
270        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
271        SkPaint* paint, jint saveFlags) {
272    return renderer->saveLayer(left, top, right, bottom, paint, saveFlags);
273}
274
275static jint android_view_GLES20Canvas_saveLayerClip(JNIEnv* env, jobject clazz,
276        OpenGLRenderer* renderer, SkPaint* paint, jint saveFlags) {
277    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
278    return renderer->saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom,
279            paint, saveFlags);
280}
281
282static jint android_view_GLES20Canvas_saveLayerAlpha(JNIEnv* env, jobject clazz,
283        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
284        jint alpha, jint saveFlags) {
285    return renderer->saveLayerAlpha(left, top, right, bottom, alpha, saveFlags);
286}
287
288static jint android_view_GLES20Canvas_saveLayerAlphaClip(JNIEnv* env, jobject clazz,
289        OpenGLRenderer* renderer, jint alpha, jint saveFlags) {
290    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
291    return renderer->saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom,
292            alpha, saveFlags);
293}
294
295// ----------------------------------------------------------------------------
296// Clipping
297// ----------------------------------------------------------------------------
298
299static bool android_view_GLES20Canvas_quickReject(JNIEnv* env, jobject clazz,
300        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom) {
301    return renderer->quickReject(left, top, right, bottom);
302}
303
304static bool android_view_GLES20Canvas_clipRectF(JNIEnv* env, jobject clazz,
305        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
306        SkRegion::Op op) {
307    return renderer->clipRect(left, top, right, bottom, op);
308}
309
310static bool android_view_GLES20Canvas_clipRect(JNIEnv* env, jobject clazz,
311        OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom,
312        SkRegion::Op op) {
313    return renderer->clipRect(float(left), float(top), float(right), float(bottom), op);
314}
315
316static bool android_view_GLES20Canvas_clipPath(JNIEnv* env, jobject clazz,
317        OpenGLRenderer* renderer, SkPath* path, SkRegion::Op op) {
318    return renderer->clipPath(path, op);
319}
320
321static bool android_view_GLES20Canvas_clipRegion(JNIEnv* env, jobject clazz,
322        OpenGLRenderer* renderer, SkRegion* region, SkRegion::Op op) {
323    return renderer->clipRegion(region, op);
324}
325
326static bool android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject clazz,
327        OpenGLRenderer* renderer, jobject rect) {
328    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
329
330    env->CallVoidMethod(rect, gRectClassInfo.set,
331            int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
332
333    return !bounds.isEmpty();
334}
335
336// ----------------------------------------------------------------------------
337// Transforms
338// ----------------------------------------------------------------------------
339
340static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject clazz,
341        OpenGLRenderer* renderer, jfloat dx, jfloat dy) {
342    renderer->translate(dx, dy);
343}
344
345static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject clazz,
346        OpenGLRenderer* renderer, jfloat degrees) {
347    renderer->rotate(degrees);
348}
349
350static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject clazz,
351        OpenGLRenderer* renderer, jfloat sx, jfloat sy) {
352    renderer->scale(sx, sy);
353}
354
355static void android_view_GLES20Canvas_skew(JNIEnv* env, jobject clazz,
356        OpenGLRenderer* renderer, jfloat sx, jfloat sy) {
357    renderer->skew(sx, sy);
358}
359
360static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject clazz,
361        OpenGLRenderer* renderer, SkMatrix* matrix) {
362    renderer->setMatrix(matrix);
363}
364
365static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject clazz,
366        OpenGLRenderer* renderer, SkMatrix* matrix) {
367    renderer->getMatrix(matrix);
368}
369
370static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject clazz,
371        OpenGLRenderer* renderer, SkMatrix* matrix) {
372    renderer->concatMatrix(matrix);
373}
374
375// ----------------------------------------------------------------------------
376// Drawing
377// ----------------------------------------------------------------------------
378
379static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject clazz,
380        OpenGLRenderer* renderer, SkBitmap* bitmap, jfloat left, jfloat top, SkPaint* paint) {
381    renderer->drawBitmap(bitmap, left, top, paint);
382}
383
384static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject clazz,
385        OpenGLRenderer* renderer, SkBitmap* bitmap,
386        float srcLeft, float srcTop, float srcRight, float srcBottom,
387        float dstLeft, float dstTop, float dstRight, float dstBottom, SkPaint* paint) {
388    renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom,
389            dstLeft, dstTop, dstRight, dstBottom, paint);
390}
391
392static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject clazz,
393        OpenGLRenderer* renderer, SkBitmap* bitmap, SkMatrix* matrix, SkPaint* paint) {
394    renderer->drawBitmap(bitmap, matrix, paint);
395}
396
397static void android_view_GLES20Canvas_drawBitmapData(JNIEnv* env, jobject clazz,
398        OpenGLRenderer* renderer, jintArray colors, jint offset, jint stride,
399        jfloat left, jfloat top, jint width, jint height, jboolean hasAlpha, SkPaint* paint) {
400    SkBitmap* bitmap = new SkBitmap;
401    bitmap->setConfig(hasAlpha ? SkBitmap::kARGB_8888_Config : SkBitmap::kRGB_565_Config,
402            width, height);
403
404    if (!bitmap->allocPixels()) {
405        delete bitmap;
406        return;
407    }
408
409    if (!GraphicsJNI::SetPixels(env, colors, offset, stride, 0, 0, width, height, *bitmap)) {
410        delete bitmap;
411        return;
412    }
413
414    renderer->drawBitmapData(bitmap, left, top, paint);
415
416    // If the renderer is a deferred renderer it will own the bitmap
417    if (!renderer->isDeferred()) {
418        delete bitmap;
419    }
420}
421
422static void android_view_GLES20Canvas_drawBitmapMesh(JNIEnv* env, jobject clazz,
423        OpenGLRenderer* renderer, SkBitmap* bitmap, jint meshWidth, jint meshHeight,
424         jfloatArray vertices, jint offset, jintArray colors, jint colorOffset, SkPaint* paint) {
425    jfloat* verticesArray = vertices ? env->GetFloatArrayElements(vertices, NULL) + offset : NULL;
426    jint* colorsArray = colors ? env->GetIntArrayElements(colors, NULL) + colorOffset : NULL;
427
428    renderer->drawBitmapMesh(bitmap, meshWidth, meshHeight, verticesArray, colorsArray, paint);
429
430    if (vertices) env->ReleaseFloatArrayElements(vertices, verticesArray, 0);
431    if (colors) env->ReleaseIntArrayElements(colors, colorsArray, 0);
432}
433
434static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject clazz,
435        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray chunks,
436        float left, float top, float right, float bottom, SkPaint* paint) {
437    jbyte* storage = env->GetByteArrayElements(chunks, NULL);
438    Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(storage);
439    Res_png_9patch::deserialize(patch);
440
441    renderer->drawPatch(bitmap, patch, left, top, right, bottom, paint);
442
443    env->ReleaseByteArrayElements(chunks, storage, 0);
444}
445
446static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject clazz,
447        OpenGLRenderer* renderer, jint color, SkXfermode::Mode mode) {
448    renderer->drawColor(color, mode);
449}
450
451static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject clazz,
452        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
453        SkPaint* paint) {
454    renderer->drawRect(left, top, right, bottom, paint);
455}
456
457static void android_view_GLES20Canvas_drawRoundRect(JNIEnv* env, jobject clazz,
458        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
459        jfloat rx, jfloat ry, SkPaint* paint) {
460    renderer->drawRoundRect(left, top, right, bottom, rx, ry, paint);
461}
462
463static void android_view_GLES20Canvas_drawCircle(JNIEnv* env, jobject clazz,
464        OpenGLRenderer* renderer, jfloat x, jfloat y, jfloat radius, SkPaint* paint) {
465    renderer->drawCircle(x, y, radius, paint);
466}
467
468static void android_view_GLES20Canvas_drawOval(JNIEnv* env, jobject clazz,
469        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
470        SkPaint* paint) {
471    renderer->drawOval(left, top, right, bottom, paint);
472}
473
474static void android_view_GLES20Canvas_drawArc(JNIEnv* env, jobject clazz,
475        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
476        jfloat startAngle, jfloat sweepAngle, jboolean useCenter, SkPaint* paint) {
477    renderer->drawArc(left, top, right, bottom, startAngle, sweepAngle, useCenter, paint);
478}
479
480static void android_view_GLES20Canvas_drawRegionAsRects(JNIEnv* env, jobject clazz,
481        OpenGLRenderer* renderer, SkRegion* region, SkPaint* paint) {
482    if (paint->getStyle() != SkPaint::kFill_Style ||
483            (paint->isAntiAlias() && !renderer->isCurrentTransformSimple())) {
484        SkRegion::Iterator it(*region);
485        while (!it.done()) {
486            const SkIRect& r = it.rect();
487            renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint);
488            it.next();
489        }
490    } else {
491        int count = 0;
492        Vector<float> rects;
493        SkRegion::Iterator it(*region);
494        while (!it.done()) {
495            const SkIRect& r = it.rect();
496            rects.push(r.fLeft);
497            rects.push(r.fTop);
498            rects.push(r.fRight);
499            rects.push(r.fBottom);
500            count += 4;
501            it.next();
502        }
503        renderer->drawRects(rects.array(), count, paint);
504    }
505}
506
507static void android_view_GLES20Canvas_drawRects(JNIEnv* env, jobject clazz,
508        OpenGLRenderer* renderer, jfloatArray rects, jint count, SkPaint* paint) {
509    jfloat* storage = env->GetFloatArrayElements(rects, NULL);
510    renderer->drawRects(storage, count, paint);
511    env->ReleaseFloatArrayElements(rects, storage, 0);
512}
513
514static void android_view_GLES20Canvas_drawPoints(JNIEnv* env, jobject clazz,
515        OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) {
516    jfloat* storage = env->GetFloatArrayElements(points, NULL);
517    renderer->drawPoints(storage + offset, count, paint);
518    env->ReleaseFloatArrayElements(points, storage, 0);
519}
520
521static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject clazz,
522        OpenGLRenderer* renderer, SkPath* path, SkPaint* paint) {
523    renderer->drawPath(path, paint);
524}
525
526static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject clazz,
527        OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) {
528    jfloat* storage = env->GetFloatArrayElements(points, NULL);
529    renderer->drawLines(storage + offset, count, paint);
530    env->ReleaseFloatArrayElements(points, storage, 0);
531}
532
533// ----------------------------------------------------------------------------
534// Shaders and color filters
535// ----------------------------------------------------------------------------
536
537static void android_view_GLES20Canvas_resetModifiers(JNIEnv* env, jobject clazz,
538        OpenGLRenderer* renderer, jint modifiers) {
539    if (modifiers & MODIFIER_SHADOW) renderer->resetShadow();
540    if (modifiers & MODIFIER_SHADER) renderer->resetShader();
541    if (modifiers & MODIFIER_COLOR_FILTER) renderer->resetColorFilter();
542}
543
544static void android_view_GLES20Canvas_setupShader(JNIEnv* env, jobject clazz,
545        OpenGLRenderer* renderer, SkiaShader* shader) {
546    renderer->setupShader(shader);
547}
548
549static void android_view_GLES20Canvas_setupColorFilter(JNIEnv* env, jobject clazz,
550        OpenGLRenderer* renderer, SkiaColorFilter* filter) {
551    renderer->setupColorFilter(filter);
552}
553
554static void android_view_GLES20Canvas_setupShadow(JNIEnv* env, jobject clazz,
555        OpenGLRenderer* renderer, jfloat radius, jfloat dx, jfloat dy, jint color) {
556    renderer->setupShadow(radius, dx, dy, color);
557}
558
559// ----------------------------------------------------------------------------
560// Draw filters
561// ----------------------------------------------------------------------------
562
563static void android_view_GLES20Canvas_setupPaintFilter(JNIEnv* env, jobject clazz,
564        OpenGLRenderer* renderer, jint clearBits, jint setBits) {
565    renderer->setupPaintFilter(clearBits, setBits);
566}
567
568static void android_view_GLES20Canvas_resetPaintFilter(JNIEnv* env, jobject clazz,
569        OpenGLRenderer* renderer) {
570    renderer->resetPaintFilter();
571}
572
573// ----------------------------------------------------------------------------
574// Text
575// ----------------------------------------------------------------------------
576
577static void renderText(OpenGLRenderer* renderer, const jchar* text, int count,
578        jfloat x, jfloat y, int flags, SkPaint* paint) {
579    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
580            text, 0, count, count, flags);
581    if (value == NULL) {
582        return;
583    }
584    const jchar* glyphs = value->getGlyphs();
585    size_t glyphsCount = value->getGlyphsCount();
586    jfloat totalAdvance = value->getTotalAdvance();
587    const float* positions = value->getPos();
588    int bytesCount = glyphsCount * sizeof(jchar);
589    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount, x, y,
590            positions, paint, totalAdvance);
591}
592
593static void renderTextOnPath(OpenGLRenderer* renderer, const jchar* text, int count,
594        SkPath* path, jfloat hOffset, jfloat vOffset, int flags, SkPaint* paint) {
595    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
596            text, 0, count, count, flags);
597    if (value == NULL) {
598        return;
599    }
600    const jchar* glyphs = value->getGlyphs();
601    size_t glyphsCount = value->getGlyphsCount();
602    int bytesCount = glyphsCount * sizeof(jchar);
603    renderer->drawTextOnPath((const char*) glyphs, bytesCount, glyphsCount, path,
604            hOffset, vOffset, paint);
605}
606
607static void renderTextRun(OpenGLRenderer* renderer, const jchar* text,
608        jint start, jint count, jint contextCount, jfloat x, jfloat y,
609        int flags, SkPaint* paint) {
610    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
611            text, start, count, contextCount, flags);
612    if (value == NULL) {
613        return;
614    }
615    const jchar* glyphs = value->getGlyphs();
616    size_t glyphsCount = value->getGlyphsCount();
617    jfloat totalAdvance = value->getTotalAdvance();
618    const float* positions = value->getPos();
619    int bytesCount = glyphsCount * sizeof(jchar);
620    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount, x, y,
621            positions, paint, totalAdvance);
622}
623
624static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject clazz,
625        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
626        jfloat x, jfloat y, jint flags, SkPaint* paint) {
627    jchar* textArray = env->GetCharArrayElements(text, NULL);
628    renderText(renderer, textArray + index, count, x, y, flags, paint);
629    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
630}
631
632static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject clazz,
633        OpenGLRenderer* renderer, jstring text, jint start, jint end,
634        jfloat x, jfloat y, jint flags, SkPaint* paint) {
635    const jchar* textArray = env->GetStringChars(text, NULL);
636    renderText(renderer, textArray + start, end - start, x, y, flags, paint);
637    env->ReleaseStringChars(text, textArray);
638}
639
640static void android_view_GLES20Canvas_drawTextArrayOnPath(JNIEnv* env, jobject clazz,
641        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
642        SkPath* path, jfloat hOffset, jfloat vOffset, jint flags, SkPaint* paint) {
643    jchar* textArray = env->GetCharArrayElements(text, NULL);
644    renderTextOnPath(renderer, textArray + index, count, path,
645            hOffset, vOffset, flags, paint);
646    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
647}
648
649static void android_view_GLES20Canvas_drawTextOnPath(JNIEnv* env, jobject clazz,
650        OpenGLRenderer* renderer, jstring text, jint start, jint end,
651        SkPath* path, jfloat hOffset, jfloat vOffset, jint flags, SkPaint* paint) {
652    const jchar* textArray = env->GetStringChars(text, NULL);
653    renderTextOnPath(renderer, textArray + start, end - start, path,
654            hOffset, vOffset, flags, paint);
655    env->ReleaseStringChars(text, textArray);
656}
657
658static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject clazz,
659        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
660        jint contextIndex, jint contextCount, jfloat x, jfloat y, jint dirFlags,
661        SkPaint* paint) {
662    jchar* textArray = env->GetCharArrayElements(text, NULL);
663    renderTextRun(renderer, textArray + contextIndex, index - contextIndex,
664            count, contextCount, x, y, dirFlags, paint);
665    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
666 }
667
668static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject clazz,
669        OpenGLRenderer* renderer, jstring text, jint start, jint end,
670        jint contextStart, int contextEnd, jfloat x, jfloat y, jint dirFlags,
671        SkPaint* paint) {
672    const jchar* textArray = env->GetStringChars(text, NULL);
673    jint count = end - start;
674    jint contextCount = contextEnd - contextStart;
675    renderTextRun(renderer, textArray + contextStart, start - contextStart,
676            count, contextCount, x, y, dirFlags, paint);
677    env->ReleaseStringChars(text, textArray);
678}
679
680static void renderPosText(OpenGLRenderer* renderer, const jchar* text, int count,
681        const jfloat* positions, jint dirFlags, SkPaint* paint) {
682    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
683            text, 0, count, count, dirFlags);
684    if (value == NULL) {
685        return;
686    }
687    const jchar* glyphs = value->getGlyphs();
688    size_t glyphsCount = value->getGlyphsCount();
689    if (count < int(glyphsCount)) glyphsCount = count;
690    int bytesCount = glyphsCount * sizeof(jchar);
691
692    renderer->drawPosText((const char*) glyphs, bytesCount, glyphsCount, positions, paint);
693}
694
695static void android_view_GLES20Canvas_drawPosTextArray(JNIEnv* env, jobject clazz,
696        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
697        jfloatArray pos, SkPaint* paint) {
698    jchar* textArray = env->GetCharArrayElements(text, NULL);
699    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
700
701    renderPosText(renderer, textArray + index, count, positions, kBidi_LTR, paint);
702
703    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
704    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
705}
706
707static void android_view_GLES20Canvas_drawPosText(JNIEnv* env, jobject clazz,
708        OpenGLRenderer* renderer, jstring text, jint start, jint end,
709        jfloatArray pos, SkPaint* paint) {
710    const jchar* textArray = env->GetStringChars(text, NULL);
711    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
712
713    renderPosText(renderer, textArray + start, end - start, positions, kBidi_LTR, paint);
714
715    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
716    env->ReleaseStringChars(text, textArray);
717}
718
719// ----------------------------------------------------------------------------
720// Display lists
721// ----------------------------------------------------------------------------
722
723static DisplayList* android_view_GLES20Canvas_getDisplayList(JNIEnv* env,
724        jobject clazz, DisplayListRenderer* renderer, DisplayList* displayList) {
725    return renderer->getDisplayList(displayList);
726}
727
728static OpenGLRenderer* android_view_GLES20Canvas_createDisplayListRenderer(JNIEnv* env,
729        jobject clazz) {
730    return new DisplayListRenderer;
731}
732
733static void android_view_GLES20Canvas_resetDisplayListRenderer(JNIEnv* env,
734        jobject clazz, DisplayListRenderer* renderer) {
735    renderer->reset();
736}
737
738static jint android_view_GLES20Canvas_drawDisplayList(JNIEnv* env,
739        jobject clazz, OpenGLRenderer* renderer, DisplayList* displayList,
740        jobject dirty, jint flags) {
741    android::uirenderer::Rect bounds;
742    status_t status = renderer->drawDisplayList(displayList, bounds, flags);
743    if (status != DrawGlInfo::kStatusDone && dirty != NULL) {
744        env->CallVoidMethod(dirty, gRectClassInfo.set,
745                int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
746    }
747    return status;
748}
749
750static void android_view_GLES20Canvas_outputDisplayList(JNIEnv* env,
751        jobject clazz, OpenGLRenderer* renderer, DisplayList* displayList) {
752    renderer->outputDisplayList(displayList);
753}
754
755// ----------------------------------------------------------------------------
756// Layers
757// ----------------------------------------------------------------------------
758
759static void android_view_GLES20Canvas_interrupt(JNIEnv* env, jobject clazz,
760        OpenGLRenderer* renderer) {
761    renderer->interrupt();
762}
763
764static void android_view_GLES20Canvas_resume(JNIEnv* env, jobject clazz,
765        OpenGLRenderer* renderer) {
766    renderer->resume();
767}
768
769static OpenGLRenderer* android_view_GLES20Canvas_createLayerRenderer(JNIEnv* env,
770        jobject clazz, Layer* layer) {
771    if (layer) {
772        OpenGLRenderer* renderer = new LayerRenderer(layer);
773        renderer->initProperties();
774        return renderer;
775    }
776    return NULL;
777}
778
779static Layer* android_view_GLES20Canvas_createTextureLayer(JNIEnv* env, jobject clazz,
780        jboolean isOpaque, jintArray layerInfo) {
781    Layer* layer = LayerRenderer::createTextureLayer(isOpaque);
782
783    if (layer) {
784        jint* storage = env->GetIntArrayElements(layerInfo, NULL);
785        storage[0] = layer->getTexture();
786        env->ReleaseIntArrayElements(layerInfo, storage, 0);
787    }
788
789    return layer;
790}
791
792static Layer* android_view_GLES20Canvas_createLayer(JNIEnv* env, jobject clazz,
793        jint width, jint height, jboolean isOpaque, jintArray layerInfo) {
794    Layer* layer = LayerRenderer::createLayer(width, height, isOpaque);
795
796    if (layer) {
797        jint* storage = env->GetIntArrayElements(layerInfo, NULL);
798        storage[0] = layer->getWidth();
799        storage[1] = layer->getHeight();
800        env->ReleaseIntArrayElements(layerInfo, storage, 0);
801    }
802
803    return layer;
804}
805
806static bool android_view_GLES20Canvas_resizeLayer(JNIEnv* env, jobject clazz,
807        Layer* layer, jint width, jint height, jintArray layerInfo) {
808    if (LayerRenderer::resizeLayer(layer, width, height)) {
809        jint* storage = env->GetIntArrayElements(layerInfo, NULL);
810        storage[0] = layer->getWidth();
811        storage[1] = layer->getHeight();
812        env->ReleaseIntArrayElements(layerInfo, storage, 0);
813        return true;
814    }
815    return false;
816}
817
818static void android_view_GLES20Canvas_setLayerPaint(JNIEnv* env, jobject clazz,
819        Layer* layer, SkPaint* paint) {
820    if (layer) {
821        layer->setPaint(paint);
822    }
823}
824
825static void android_view_GLES20Canvas_setLayerColorFilter(JNIEnv* env, jobject clazz,
826        Layer* layer, SkiaColorFilter* colorFilter) {
827    if (layer) {
828        layer->setColorFilter(colorFilter);
829    }
830}
831
832static void android_view_GLES20Canvas_setOpaqueLayer(JNIEnv* env, jobject clazz,
833        Layer* layer, jboolean isOpaque) {
834    if (layer) {
835        layer->setBlend(!isOpaque);
836    }
837}
838
839static void android_view_GLES20Canvas_updateTextureLayer(JNIEnv* env, jobject clazz,
840        Layer* layer, jint width, jint height, jboolean isOpaque, jobject surface) {
841    float transform[16];
842    sp<GLConsumer> surfaceTexture(SurfaceTexture_getSurfaceTexture(env, surface));
843
844    if (surfaceTexture->updateTexImage() == NO_ERROR) {
845        surfaceTexture->getTransformMatrix(transform);
846        GLenum renderTarget = surfaceTexture->getCurrentTextureTarget();
847
848        LayerRenderer::updateTextureLayer(layer, width, height, isOpaque, renderTarget, transform);
849    }
850}
851
852static void android_view_GLES20Canvas_updateRenderLayer(JNIEnv* env, jobject clazz,
853        Layer* layer, OpenGLRenderer* renderer, DisplayList* displayList,
854        jint left, jint top, jint right, jint bottom) {
855    layer->updateDeferred(renderer, displayList, left, top, right, bottom);
856}
857
858static void android_view_GLES20Canvas_clearLayerTexture(JNIEnv* env, jobject clazz,
859        Layer* layer) {
860    layer->clearTexture();
861}
862
863static void android_view_GLES20Canvas_setTextureLayerTransform(JNIEnv* env, jobject clazz,
864        Layer* layer, SkMatrix* matrix) {
865    layer->getTransform().load(*matrix);
866}
867
868static void android_view_GLES20Canvas_destroyLayer(JNIEnv* env, jobject clazz, Layer* layer) {
869    LayerRenderer::destroyLayer(layer);
870}
871
872static void android_view_GLES20Canvas_destroyLayerDeferred(JNIEnv* env,
873        jobject clazz, Layer* layer) {
874    LayerRenderer::destroyLayerDeferred(layer);
875}
876
877static void android_view_GLES20Canvas_drawLayer(JNIEnv* env, jobject clazz,
878        OpenGLRenderer* renderer, Layer* layer, jfloat x, jfloat y) {
879    renderer->drawLayer(layer, x, y);
880}
881
882static jboolean android_view_GLES20Canvas_copyLayer(JNIEnv* env, jobject clazz,
883        Layer* layer, SkBitmap* bitmap) {
884    return LayerRenderer::copyLayer(layer, bitmap);
885}
886
887static void android_view_GLES20Canvas_pushLayerUpdate(JNIEnv* env, jobject clazz,
888        OpenGLRenderer* renderer, Layer* layer) {
889    renderer->pushLayerUpdate(layer);
890}
891
892static void android_view_GLES20Canvas_clearLayerUpdates(JNIEnv* env, jobject clazz,
893        OpenGLRenderer* renderer) {
894    renderer->clearLayerUpdates();
895}
896
897#endif // USE_OPENGL_RENDERER
898
899// ----------------------------------------------------------------------------
900// Common
901// ----------------------------------------------------------------------------
902
903static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) {
904#ifdef USE_OPENGL_RENDERER
905    char prop[PROPERTY_VALUE_MAX];
906    if (property_get("ro.kernel.qemu", prop, NULL) == 0) {
907        // not in the emulator
908        return JNI_TRUE;
909    }
910    // In the emulator this property will be set to 1 when hardware GLES is
911    // enabled, 0 otherwise. On old emulator versions it will be undefined.
912    property_get("ro.kernel.qemu.gles", prop, "0");
913    return atoi(prop) == 1 ? JNI_TRUE : JNI_FALSE;
914#else
915    return JNI_FALSE;
916#endif
917}
918
919// ----------------------------------------------------------------------------
920// Logging
921// ----------------------------------------------------------------------------
922
923static void
924android_app_ActivityThread_dumpGraphics(JNIEnv* env, jobject clazz, jobject javaFileDescriptor) {
925#ifdef USE_OPENGL_RENDERER
926    int fd = jniGetFDFromFileDescriptor(env, javaFileDescriptor);
927    android::uirenderer::DisplayList::outputLogBuffer(fd);
928#endif // USE_OPENGL_RENDERER
929}
930
931// ----------------------------------------------------------------------------
932// JNI Glue
933// ----------------------------------------------------------------------------
934
935const char* const kClassPathName = "android/view/GLES20Canvas";
936
937static JNINativeMethod gMethods[] = {
938    { "nIsAvailable",       "()Z",             (void*) android_view_GLES20Canvas_isAvailable },
939
940#ifdef USE_OPENGL_RENDERER
941    { "nFlushCaches",       "(I)V",            (void*) android_view_GLES20Canvas_flushCaches },
942    { "nInitCaches",        "()Z",             (void*) android_view_GLES20Canvas_initCaches },
943    { "nTerminateCaches",   "()V",             (void*) android_view_GLES20Canvas_terminateCaches },
944
945    { "nInitAtlas",         "(Landroid/view/GraphicBuffer;[II)V",
946            (void*) android_view_GLES20Canvas_initAtlas },
947
948    { "nCreateRenderer",    "()I",             (void*) android_view_GLES20Canvas_createRenderer },
949    { "nDestroyRenderer",   "(I)V",            (void*) android_view_GLES20Canvas_destroyRenderer },
950    { "nSetViewport",       "(III)V",          (void*) android_view_GLES20Canvas_setViewport },
951    { "nPrepare",           "(IZ)I",           (void*) android_view_GLES20Canvas_prepare },
952    { "nPrepareDirty",      "(IIIIIZ)I",       (void*) android_view_GLES20Canvas_prepareDirty },
953    { "nFinish",            "(I)V",            (void*) android_view_GLES20Canvas_finish },
954    { "nSetName",           "(ILjava/lang/String;)V",
955            (void*) android_view_GLES20Canvas_setName },
956
957    { "nSetCountOverdrawEnabled", "(IZ)V",     (void*) android_view_GLES20Canvas_setCountOverdrawEnabled },
958    { "nGetOverdraw",             "(I)F",      (void*) android_view_GLES20Canvas_getOverdraw },
959
960    { "nGetStencilSize",    "()I",             (void*) android_view_GLES20Canvas_getStencilSize },
961
962    { "nCallDrawGLFunction", "(II)I",          (void*) android_view_GLES20Canvas_callDrawGLFunction },
963    { "nDetachFunctor",      "(II)V",          (void*) android_view_GLES20Canvas_detachFunctor },
964    { "nAttachFunctor",      "(II)V",          (void*) android_view_GLES20Canvas_attachFunctor },
965    { "nInvokeFunctors",     "(ILandroid/graphics/Rect;)I",
966            (void*) android_view_GLES20Canvas_invokeFunctors },
967
968    { "nSave",              "(II)I",           (void*) android_view_GLES20Canvas_save },
969    { "nRestore",           "(I)V",            (void*) android_view_GLES20Canvas_restore },
970    { "nRestoreToCount",    "(II)V",           (void*) android_view_GLES20Canvas_restoreToCount },
971    { "nGetSaveCount",      "(I)I",            (void*) android_view_GLES20Canvas_getSaveCount },
972
973    { "nSaveLayer",         "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayer },
974    { "nSaveLayer",         "(III)I",          (void*) android_view_GLES20Canvas_saveLayerClip },
975    { "nSaveLayerAlpha",    "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayerAlpha },
976    { "nSaveLayerAlpha",    "(III)I",          (void*) android_view_GLES20Canvas_saveLayerAlphaClip },
977
978    { "nQuickReject",       "(IFFFF)Z",        (void*) android_view_GLES20Canvas_quickReject },
979    { "nClipRect",          "(IFFFFI)Z",       (void*) android_view_GLES20Canvas_clipRectF },
980    { "nClipRect",          "(IIIIII)Z",       (void*) android_view_GLES20Canvas_clipRect },
981    { "nClipPath",          "(III)Z",          (void*) android_view_GLES20Canvas_clipPath },
982    { "nClipRegion",        "(III)Z",          (void*) android_view_GLES20Canvas_clipRegion },
983
984    { "nTranslate",         "(IFF)V",          (void*) android_view_GLES20Canvas_translate },
985    { "nRotate",            "(IF)V",           (void*) android_view_GLES20Canvas_rotate },
986    { "nScale",             "(IFF)V",          (void*) android_view_GLES20Canvas_scale },
987    { "nSkew",              "(IFF)V",          (void*) android_view_GLES20Canvas_skew },
988
989    { "nSetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_setMatrix },
990    { "nGetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_getMatrix },
991    { "nConcatMatrix",      "(II)V",           (void*) android_view_GLES20Canvas_concatMatrix },
992
993    { "nDrawBitmap",        "(IIFFI)V",        (void*) android_view_GLES20Canvas_drawBitmap },
994    { "nDrawBitmap",        "(IIFFFFFFFFI)V",  (void*) android_view_GLES20Canvas_drawBitmapRect },
995    { "nDrawBitmap",        "(IIII)V",         (void*) android_view_GLES20Canvas_drawBitmapMatrix },
996    { "nDrawBitmap",        "(I[IIIFFIIZI)V",  (void*) android_view_GLES20Canvas_drawBitmapData },
997
998    { "nDrawBitmapMesh",    "(IIII[FI[III)V",  (void*) android_view_GLES20Canvas_drawBitmapMesh },
999
1000    { "nDrawPatch",         "(II[BFFFFI)V",    (void*) android_view_GLES20Canvas_drawPatch },
1001
1002    { "nDrawColor",         "(III)V",          (void*) android_view_GLES20Canvas_drawColor },
1003    { "nDrawRect",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawRect },
1004    { "nDrawRects",         "(III)V",          (void*) android_view_GLES20Canvas_drawRegionAsRects },
1005    { "nDrawRects",         "(I[FII)V",        (void*) android_view_GLES20Canvas_drawRects },
1006    { "nDrawRoundRect",     "(IFFFFFFI)V",     (void*) android_view_GLES20Canvas_drawRoundRect },
1007    { "nDrawCircle",        "(IFFFI)V",        (void*) android_view_GLES20Canvas_drawCircle },
1008    { "nDrawOval",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawOval },
1009    { "nDrawArc",           "(IFFFFFFZI)V",    (void*) android_view_GLES20Canvas_drawArc },
1010    { "nDrawPoints",        "(I[FIII)V",       (void*) android_view_GLES20Canvas_drawPoints },
1011
1012    { "nDrawPath",          "(III)V",          (void*) android_view_GLES20Canvas_drawPath },
1013    { "nDrawLines",         "(I[FIII)V",       (void*) android_view_GLES20Canvas_drawLines },
1014
1015    { "nResetModifiers",    "(II)V",           (void*) android_view_GLES20Canvas_resetModifiers },
1016    { "nSetupShader",       "(II)V",           (void*) android_view_GLES20Canvas_setupShader },
1017    { "nSetupColorFilter",  "(II)V",           (void*) android_view_GLES20Canvas_setupColorFilter },
1018    { "nSetupShadow",       "(IFFFI)V",        (void*) android_view_GLES20Canvas_setupShadow },
1019
1020    { "nSetupPaintFilter",  "(III)V",          (void*) android_view_GLES20Canvas_setupPaintFilter },
1021    { "nResetPaintFilter",  "(I)V",            (void*) android_view_GLES20Canvas_resetPaintFilter },
1022
1023    { "nDrawText",          "(I[CIIFFII)V",    (void*) android_view_GLES20Canvas_drawTextArray },
1024    { "nDrawText",          "(ILjava/lang/String;IIFFII)V",
1025            (void*) android_view_GLES20Canvas_drawText },
1026
1027    { "nDrawTextOnPath",    "(I[CIIIFFII)V",   (void*) android_view_GLES20Canvas_drawTextArrayOnPath },
1028    { "nDrawTextOnPath",    "(ILjava/lang/String;IIIFFII)V",
1029            (void*) android_view_GLES20Canvas_drawTextOnPath },
1030
1031    { "nDrawTextRun",       "(I[CIIIIFFII)V",  (void*) android_view_GLES20Canvas_drawTextRunArray },
1032    { "nDrawTextRun",       "(ILjava/lang/String;IIIIFFII)V",
1033            (void*) android_view_GLES20Canvas_drawTextRun },
1034
1035    { "nDrawPosText",       "(I[CII[FI)V",     (void*) android_view_GLES20Canvas_drawPosTextArray },
1036    { "nDrawPosText",       "(ILjava/lang/String;II[FI)V",
1037            (void*) android_view_GLES20Canvas_drawPosText },
1038
1039    { "nGetClipBounds",     "(ILandroid/graphics/Rect;)Z",
1040            (void*) android_view_GLES20Canvas_getClipBounds },
1041
1042    { "nGetDisplayList",         "(II)I",      (void*) android_view_GLES20Canvas_getDisplayList },
1043    { "nOutputDisplayList",      "(II)V",      (void*) android_view_GLES20Canvas_outputDisplayList },
1044    { "nDrawDisplayList",        "(IILandroid/graphics/Rect;I)I",
1045            (void*) android_view_GLES20Canvas_drawDisplayList },
1046
1047    { "nCreateDisplayListRenderer", "()I",     (void*) android_view_GLES20Canvas_createDisplayListRenderer },
1048    { "nResetDisplayListRenderer",  "(I)V",    (void*) android_view_GLES20Canvas_resetDisplayListRenderer },
1049
1050    { "nInterrupt",              "(I)V",       (void*) android_view_GLES20Canvas_interrupt },
1051    { "nResume",                 "(I)V",       (void*) android_view_GLES20Canvas_resume },
1052
1053    { "nCreateLayerRenderer",    "(I)I",       (void*) android_view_GLES20Canvas_createLayerRenderer },
1054    { "nCreateLayer",            "(IIZ[I)I",   (void*) android_view_GLES20Canvas_createLayer },
1055    { "nResizeLayer",            "(III[I)Z" ,  (void*) android_view_GLES20Canvas_resizeLayer },
1056    { "nSetLayerPaint",          "(II)V",      (void*) android_view_GLES20Canvas_setLayerPaint },
1057    { "nSetLayerColorFilter",    "(II)V",      (void*) android_view_GLES20Canvas_setLayerColorFilter },
1058    { "nSetOpaqueLayer",         "(IZ)V",      (void*) android_view_GLES20Canvas_setOpaqueLayer },
1059    { "nCreateTextureLayer",     "(Z[I)I",     (void*) android_view_GLES20Canvas_createTextureLayer },
1060    { "nUpdateTextureLayer",     "(IIIZLandroid/graphics/SurfaceTexture;)V",
1061            (void*) android_view_GLES20Canvas_updateTextureLayer },
1062    { "nUpdateRenderLayer",      "(IIIIIII)V", (void*) android_view_GLES20Canvas_updateRenderLayer },
1063    { "nClearLayerTexture",      "(I)V",       (void*) android_view_GLES20Canvas_clearLayerTexture },
1064    { "nDestroyLayer",           "(I)V",       (void*) android_view_GLES20Canvas_destroyLayer },
1065    { "nDestroyLayerDeferred",   "(I)V",       (void*) android_view_GLES20Canvas_destroyLayerDeferred },
1066    { "nDrawLayer",              "(IIFF)V",    (void*) android_view_GLES20Canvas_drawLayer },
1067    { "nCopyLayer",              "(II)Z",      (void*) android_view_GLES20Canvas_copyLayer },
1068    { "nClearLayerUpdates",      "(I)V",       (void*) android_view_GLES20Canvas_clearLayerUpdates },
1069    { "nPushLayerUpdate",        "(II)V",      (void*) android_view_GLES20Canvas_pushLayerUpdate },
1070
1071    { "nSetTextureLayerTransform", "(II)V",    (void*) android_view_GLES20Canvas_setTextureLayerTransform },
1072
1073    { "nGetMaximumTextureWidth",  "()I",       (void*) android_view_GLES20Canvas_getMaxTextureWidth },
1074    { "nGetMaximumTextureHeight", "()I",       (void*) android_view_GLES20Canvas_getMaxTextureHeight },
1075
1076#endif
1077};
1078
1079static JNINativeMethod gActivityThreadMethods[] = {
1080    { "dumpGraphicsInfo",        "(Ljava/io/FileDescriptor;)V",
1081                                               (void*) android_app_ActivityThread_dumpGraphics }
1082};
1083
1084
1085#ifdef USE_OPENGL_RENDERER
1086    #define FIND_CLASS(var, className) \
1087            var = env->FindClass(className); \
1088            LOG_FATAL_IF(! var, "Unable to find class " className);
1089
1090    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
1091            var = env->GetMethodID(clazz, methodName, methodDescriptor); \
1092            LOG_FATAL_IF(! var, "Unable to find method " methodName);
1093#else
1094    #define FIND_CLASS(var, className)
1095    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor)
1096#endif
1097
1098int register_android_view_GLES20Canvas(JNIEnv* env) {
1099    jclass clazz;
1100    FIND_CLASS(clazz, "android/graphics/Rect");
1101    GET_METHOD_ID(gRectClassInfo.set, clazz, "set", "(IIII)V");
1102
1103    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
1104}
1105
1106const char* const kActivityThreadPathName = "android/app/ActivityThread";
1107
1108int register_android_app_ActivityThread(JNIEnv* env) {
1109    return AndroidRuntime::registerNativeMethods(env, kActivityThreadPathName,
1110            gActivityThreadMethods, NELEM(gActivityThreadMethods));
1111}
1112
1113};
1114