android_view_GLES20Canvas.cpp revision 7bac55434caa9de7fc31f6fd8b0384042c700b4c 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define LOG_TAG "OpenGLRenderer"
18
19#include <EGL/egl.h>
20
21#include "jni.h"
22#include "GraphicsJNI.h"
23#include <nativehelper/JNIHelp.h>
24
25#include <android_runtime/AndroidRuntime.h>
26#include <android_runtime/android_graphics_SurfaceTexture.h>
27#include <gui/GLConsumer.h>
28
29#include <androidfw/ResourceTypes.h>
30
31#include <private/hwui/DrawGlInfo.h>
32
33#include <cutils/properties.h>
34
35#include <SkBitmap.h>
36#include <SkCanvas.h>
37#include <SkMatrix.h>
38#include <SkPaint.h>
39#include <SkRegion.h>
40#include <SkScalerContext.h>
41#include <SkTemplates.h>
42#include <SkXfermode.h>
43
44#include <DisplayListRenderer.h>
45#include <LayerRenderer.h>
46#include <OpenGLRenderer.h>
47#include <SkiaShader.h>
48#include <SkiaColorFilter.h>
49#include <Stencil.h>
50#include <Rect.h>
51
52#include <TextLayout.h>
53#include <TextLayoutCache.h>
54
55namespace android {
56
57using namespace uirenderer;
58
59/**
60 * Note: OpenGLRenderer JNI layer is generated and compiled only on supported
61 *       devices. This means all the logic must be compiled only when the
62 *       preprocessor variable USE_OPENGL_RENDERER is defined.
63 */
64#ifdef USE_OPENGL_RENDERER
65
66// ----------------------------------------------------------------------------
67// Defines
68// ----------------------------------------------------------------------------
69
70// Debug
71#define DEBUG_RENDERER 0
72
73// Debug
74#if DEBUG_RENDERER
75    #define RENDERER_LOGD(...) ALOGD(__VA_ARGS__)
76#else
77    #define RENDERER_LOGD(...)
78#endif
79
80#define MODIFIER_SHADOW 1
81#define MODIFIER_SHADER 2
82#define MODIFIER_COLOR_FILTER 4
83
84// ----------------------------------------------------------------------------
85
86static struct {
87    jmethodID set;
88} gRectClassInfo;
89
90// ----------------------------------------------------------------------------
91// Caching
92// ----------------------------------------------------------------------------
93
94static void android_view_GLES20Canvas_flushCaches(JNIEnv* env, jobject clazz,
95        Caches::FlushMode mode) {
96    if (Caches::hasInstance()) {
97        Caches::getInstance().flush(mode);
98    }
99}
100
101static void android_view_GLES20Canvas_initCaches(JNIEnv* env, jobject clazz) {
102    if (Caches::hasInstance()) {
103        Caches::getInstance().init();
104    }
105}
106
107static void android_view_GLES20Canvas_terminateCaches(JNIEnv* env, jobject clazz) {
108    if (Caches::hasInstance()) {
109        Caches::getInstance().terminate();
110    }
111}
112
113// ----------------------------------------------------------------------------
114// Constructors
115// ----------------------------------------------------------------------------
116
117static OpenGLRenderer* android_view_GLES20Canvas_createRenderer(JNIEnv* env, jobject clazz) {
118    RENDERER_LOGD("Create OpenGLRenderer");
119    OpenGLRenderer* renderer = new OpenGLRenderer();
120    renderer->initProperties();
121    return renderer;
122}
123
124static void android_view_GLES20Canvas_destroyRenderer(JNIEnv* env, jobject clazz,
125        OpenGLRenderer* renderer) {
126    RENDERER_LOGD("Destroy OpenGLRenderer");
127    delete renderer;
128}
129
130// ----------------------------------------------------------------------------
131// Setup
132// ----------------------------------------------------------------------------
133
134static void android_view_GLES20Canvas_setViewport(JNIEnv* env, jobject clazz,
135        OpenGLRenderer* renderer, jint width, jint height) {
136    renderer->setViewport(width, height);
137}
138
139static int android_view_GLES20Canvas_prepare(JNIEnv* env, jobject clazz,
140        OpenGLRenderer* renderer, jboolean opaque) {
141    return renderer->prepare(opaque);
142}
143
144static int android_view_GLES20Canvas_prepareDirty(JNIEnv* env, jobject clazz,
145        OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom,
146        jboolean opaque) {
147    return renderer->prepareDirty(left, top, right, bottom, opaque);
148}
149
150static void android_view_GLES20Canvas_finish(JNIEnv* env, jobject clazz,
151        OpenGLRenderer* renderer) {
152    renderer->finish();
153}
154
155static jint android_view_GLES20Canvas_getStencilSize(JNIEnv* env, jobject clazz) {
156    return Stencil::getStencilSize();
157}
158
159// ----------------------------------------------------------------------------
160// Functor
161// ----------------------------------------------------------------------------
162
163static jint android_view_GLES20Canvas_callDrawGLFunction(JNIEnv* env, jobject clazz,
164        OpenGLRenderer* renderer, Functor* functor) {
165    android::uirenderer::Rect dirty;
166    return renderer->callDrawGLFunction(functor, dirty);
167}
168
169static void android_view_GLES20Canvas_detachFunctor(JNIEnv* env,
170        jobject clazz, OpenGLRenderer* renderer, Functor* functor) {
171    renderer->detachFunctor(functor);
172}
173
174static void android_view_GLES20Canvas_attachFunctor(JNIEnv* env,
175        jobject clazz, OpenGLRenderer* renderer, Functor* functor) {
176    renderer->attachFunctor(functor);
177}
178
179static jint android_view_GLES20Canvas_invokeFunctors(JNIEnv* env,
180        jobject clazz, OpenGLRenderer* renderer, jobject dirty) {
181    android::uirenderer::Rect bounds;
182    status_t status = renderer->invokeFunctors(bounds);
183    if (status != DrawGlInfo::kStatusDone && dirty != NULL) {
184        env->CallVoidMethod(dirty, gRectClassInfo.set,
185                int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
186    }
187    return status;
188}
189
190// ----------------------------------------------------------------------------
191// Misc
192// ----------------------------------------------------------------------------
193
194static jint android_view_GLES20Canvas_getMaxTextureWidth(JNIEnv* env, jobject clazz) {
195    return Caches::getInstance().maxTextureSize;
196}
197
198static jint android_view_GLES20Canvas_getMaxTextureHeight(JNIEnv* env, jobject clazz) {
199    return Caches::getInstance().maxTextureSize;
200}
201
202// ----------------------------------------------------------------------------
203// State
204// ----------------------------------------------------------------------------
205
206static jint android_view_GLES20Canvas_save(JNIEnv* env, jobject clazz, OpenGLRenderer* renderer,
207        jint flags) {
208    return renderer->save(flags);
209}
210
211static jint android_view_GLES20Canvas_getSaveCount(JNIEnv* env, jobject clazz,
212        OpenGLRenderer* renderer) {
213    return renderer->getSaveCount();
214}
215
216static void android_view_GLES20Canvas_restore(JNIEnv* env, jobject clazz,
217        OpenGLRenderer* renderer) {
218    renderer->restore();
219}
220
221static void android_view_GLES20Canvas_restoreToCount(JNIEnv* env, jobject clazz,
222        OpenGLRenderer* renderer, jint saveCount) {
223    renderer->restoreToCount(saveCount);
224}
225
226// ----------------------------------------------------------------------------
227// Layers
228// ----------------------------------------------------------------------------
229
230static jint android_view_GLES20Canvas_saveLayer(JNIEnv* env, jobject clazz,
231        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
232        SkPaint* paint, jint saveFlags) {
233    return renderer->saveLayer(left, top, right, bottom, paint, saveFlags);
234}
235
236static jint android_view_GLES20Canvas_saveLayerClip(JNIEnv* env, jobject clazz,
237        OpenGLRenderer* renderer, SkPaint* paint, jint saveFlags) {
238    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
239    return renderer->saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom,
240            paint, saveFlags);
241}
242
243static jint android_view_GLES20Canvas_saveLayerAlpha(JNIEnv* env, jobject clazz,
244        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
245        jint alpha, jint saveFlags) {
246    return renderer->saveLayerAlpha(left, top, right, bottom, alpha, saveFlags);
247}
248
249static jint android_view_GLES20Canvas_saveLayerAlphaClip(JNIEnv* env, jobject clazz,
250        OpenGLRenderer* renderer, jint alpha, jint saveFlags) {
251    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
252    return renderer->saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom,
253            alpha, saveFlags);
254}
255
256// ----------------------------------------------------------------------------
257// Clipping
258// ----------------------------------------------------------------------------
259
260static bool android_view_GLES20Canvas_quickReject(JNIEnv* env, jobject clazz,
261        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom) {
262    return renderer->quickReject(left, top, right, bottom);
263}
264
265static bool android_view_GLES20Canvas_clipRectF(JNIEnv* env, jobject clazz,
266        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
267        SkRegion::Op op) {
268    return renderer->clipRect(left, top, right, bottom, op);
269}
270
271static bool android_view_GLES20Canvas_clipRect(JNIEnv* env, jobject clazz,
272        OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom,
273        SkRegion::Op op) {
274    return renderer->clipRect(float(left), float(top), float(right), float(bottom), op);
275}
276
277static bool android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject clazz,
278        OpenGLRenderer* renderer, jobject rect) {
279    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
280
281    env->CallVoidMethod(rect, gRectClassInfo.set,
282            int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
283
284    return !bounds.isEmpty();
285}
286
287// ----------------------------------------------------------------------------
288// Transforms
289// ----------------------------------------------------------------------------
290
291static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject clazz,
292        OpenGLRenderer* renderer, jfloat dx, jfloat dy) {
293    renderer->translate(dx, dy);
294}
295
296static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject clazz,
297        OpenGLRenderer* renderer, jfloat degrees) {
298    renderer->rotate(degrees);
299}
300
301static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject clazz,
302        OpenGLRenderer* renderer, jfloat sx, jfloat sy) {
303    renderer->scale(sx, sy);
304}
305
306static void android_view_GLES20Canvas_skew(JNIEnv* env, jobject clazz,
307        OpenGLRenderer* renderer, jfloat sx, jfloat sy) {
308    renderer->skew(sx, sy);
309}
310
311static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject clazz,
312        OpenGLRenderer* renderer, SkMatrix* matrix) {
313    renderer->setMatrix(matrix);
314}
315
316static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject clazz,
317        OpenGLRenderer* renderer, SkMatrix* matrix) {
318    renderer->getMatrix(matrix);
319}
320
321static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject clazz,
322        OpenGLRenderer* renderer, SkMatrix* matrix) {
323    renderer->concatMatrix(matrix);
324}
325
326// ----------------------------------------------------------------------------
327// Drawing
328// ----------------------------------------------------------------------------
329
330static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject clazz,
331        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer,
332        jfloat left, jfloat top, SkPaint* paint) {
333    // This object allows the renderer to allocate a global JNI ref to the buffer object.
334    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
335
336    renderer->drawBitmap(bitmap, left, top, paint);
337}
338
339static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject clazz,
340        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer,
341        float srcLeft, float srcTop, float srcRight, float srcBottom,
342        float dstLeft, float dstTop, float dstRight, float dstBottom, SkPaint* paint) {
343    // This object allows the renderer to allocate a global JNI ref to the buffer object.
344    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
345
346    renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom,
347            dstLeft, dstTop, dstRight, dstBottom, paint);
348}
349
350static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject clazz,
351        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, SkMatrix* matrix,
352        SkPaint* paint) {
353    // This object allows the renderer to allocate a global JNI ref to the buffer object.
354    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
355
356    renderer->drawBitmap(bitmap, matrix, paint);
357}
358
359static void android_view_GLES20Canvas_drawBitmapData(JNIEnv* env, jobject clazz,
360        OpenGLRenderer* renderer, jintArray colors, jint offset, jint stride,
361        jfloat left, jfloat top, jint width, jint height, jboolean hasAlpha, SkPaint* paint) {
362    SkBitmap* bitmap = new SkBitmap;
363    bitmap->setConfig(hasAlpha ? SkBitmap::kARGB_8888_Config : SkBitmap::kRGB_565_Config,
364            width, height);
365
366    if (!bitmap->allocPixels()) {
367        delete bitmap;
368        return;
369    }
370
371    if (!GraphicsJNI::SetPixels(env, colors, offset, stride, 0, 0, width, height, *bitmap)) {
372        delete bitmap;
373        return;
374    }
375
376    renderer->drawBitmapData(bitmap, left, top, paint);
377
378    // If the renderer is a deferred renderer it will own the bitmap
379    if (!renderer->isDeferred()) {
380        delete bitmap;
381    }
382}
383
384static void android_view_GLES20Canvas_drawBitmapMesh(JNIEnv* env, jobject clazz,
385        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer,
386        jint meshWidth, jint meshHeight, jfloatArray vertices, jint offset,
387        jintArray colors, jint colorOffset, SkPaint* paint) {
388    // This object allows the renderer to allocate a global JNI ref to the buffer object.
389    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
390
391    jfloat* verticesArray = vertices ? env->GetFloatArrayElements(vertices, NULL) + offset : NULL;
392    jint* colorsArray = colors ? env->GetIntArrayElements(colors, NULL) + colorOffset : NULL;
393
394    renderer->drawBitmapMesh(bitmap, meshWidth, meshHeight, verticesArray, colorsArray, paint);
395
396    if (vertices) env->ReleaseFloatArrayElements(vertices, verticesArray, 0);
397    if (colors) env->ReleaseIntArrayElements(colors, colorsArray, 0);
398}
399
400static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject clazz,
401        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, jbyteArray chunks,
402        float left, float top, float right, float bottom, SkPaint* paint) {
403    // This object allows the renderer to allocate a global JNI ref to the buffer object.
404    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
405
406    jbyte* storage = env->GetByteArrayElements(chunks, NULL);
407    Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(storage);
408    Res_png_9patch::deserialize(patch);
409
410    renderer->drawPatch(bitmap, &patch->xDivs[0], &patch->yDivs[0],
411            &patch->colors[0], patch->numXDivs, patch->numYDivs, patch->numColors,
412            left, top, right, bottom, paint);
413
414    env->ReleaseByteArrayElements(chunks, storage, 0);
415}
416
417static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject clazz,
418        OpenGLRenderer* renderer, jint color, SkXfermode::Mode mode) {
419    renderer->drawColor(color, mode);
420}
421
422static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject clazz,
423        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
424        SkPaint* paint) {
425    renderer->drawRect(left, top, right, bottom, paint);
426}
427
428static void android_view_GLES20Canvas_drawRoundRect(JNIEnv* env, jobject clazz,
429        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
430        jfloat rx, jfloat ry, SkPaint* paint) {
431    renderer->drawRoundRect(left, top, right, bottom, rx, ry, paint);
432}
433
434static void android_view_GLES20Canvas_drawCircle(JNIEnv* env, jobject clazz,
435        OpenGLRenderer* renderer, jfloat x, jfloat y, jfloat radius, SkPaint* paint) {
436    renderer->drawCircle(x, y, radius, paint);
437}
438
439static void android_view_GLES20Canvas_drawOval(JNIEnv* env, jobject clazz,
440        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
441        SkPaint* paint) {
442    renderer->drawOval(left, top, right, bottom, paint);
443}
444
445static void android_view_GLES20Canvas_drawArc(JNIEnv* env, jobject clazz,
446        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
447        jfloat startAngle, jfloat sweepAngle, jboolean useCenter, SkPaint* paint) {
448    renderer->drawArc(left, top, right, bottom, startAngle, sweepAngle, useCenter, paint);
449}
450
451static void android_view_GLES20Canvas_drawRegionAsRects(JNIEnv* env, jobject clazz,
452        OpenGLRenderer* renderer, SkRegion* region, SkPaint* paint) {
453    if (paint->getStyle() != SkPaint::kFill_Style ||
454            (paint->isAntiAlias() && !renderer->isCurrentTransformSimple())) {
455        SkRegion::Iterator it(*region);
456        while (!it.done()) {
457            const SkIRect& r = it.rect();
458            renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint);
459            it.next();
460        }
461    } else {
462        int count = 0;
463        Vector<float> rects;
464        SkRegion::Iterator it(*region);
465        while (!it.done()) {
466            const SkIRect& r = it.rect();
467            rects.push(r.fLeft);
468            rects.push(r.fTop);
469            rects.push(r.fRight);
470            rects.push(r.fBottom);
471            count++;
472            it.next();
473        }
474        renderer->drawRects(rects.array(), count, paint);
475    }
476}
477
478static void android_view_GLES20Canvas_drawRects(JNIEnv* env, jobject clazz,
479        OpenGLRenderer* renderer, jfloatArray rects, jint count, SkPaint* paint) {
480    jfloat* storage = env->GetFloatArrayElements(rects, NULL);
481    renderer->drawRects(storage, count, paint);
482    env->ReleaseFloatArrayElements(rects, storage, 0);
483}
484
485static void android_view_GLES20Canvas_drawPoints(JNIEnv* env, jobject clazz,
486        OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) {
487    jfloat* storage = env->GetFloatArrayElements(points, NULL);
488    renderer->drawPoints(storage + offset, count, paint);
489    env->ReleaseFloatArrayElements(points, storage, 0);
490}
491
492static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject clazz,
493        OpenGLRenderer* renderer, SkPath* path, SkPaint* paint) {
494    renderer->drawPath(path, paint);
495}
496
497static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject clazz,
498        OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) {
499    jfloat* storage = env->GetFloatArrayElements(points, NULL);
500    renderer->drawLines(storage + offset, count, paint);
501    env->ReleaseFloatArrayElements(points, storage, 0);
502}
503
504// ----------------------------------------------------------------------------
505// Shaders and color filters
506// ----------------------------------------------------------------------------
507
508static void android_view_GLES20Canvas_resetModifiers(JNIEnv* env, jobject clazz,
509        OpenGLRenderer* renderer, jint modifiers) {
510    if (modifiers & MODIFIER_SHADOW) renderer->resetShadow();
511    if (modifiers & MODIFIER_SHADER) renderer->resetShader();
512    if (modifiers & MODIFIER_COLOR_FILTER) renderer->resetColorFilter();
513}
514
515static void android_view_GLES20Canvas_setupShader(JNIEnv* env, jobject clazz,
516        OpenGLRenderer* renderer, SkiaShader* shader) {
517    renderer->setupShader(shader);
518}
519
520static void android_view_GLES20Canvas_setupColorFilter(JNIEnv* env, jobject clazz,
521        OpenGLRenderer* renderer, SkiaColorFilter* filter) {
522    renderer->setupColorFilter(filter);
523}
524
525static void android_view_GLES20Canvas_setupShadow(JNIEnv* env, jobject clazz,
526        OpenGLRenderer* renderer, jfloat radius, jfloat dx, jfloat dy, jint color) {
527    renderer->setupShadow(radius, dx, dy, color);
528}
529
530// ----------------------------------------------------------------------------
531// Draw filters
532// ----------------------------------------------------------------------------
533
534static void android_view_GLES20Canvas_setupPaintFilter(JNIEnv* env, jobject clazz,
535        OpenGLRenderer* renderer, jint clearBits, jint setBits) {
536    renderer->setupPaintFilter(clearBits, setBits);
537}
538
539static void android_view_GLES20Canvas_resetPaintFilter(JNIEnv* env, jobject clazz,
540        OpenGLRenderer* renderer) {
541    renderer->resetPaintFilter();
542}
543
544// ----------------------------------------------------------------------------
545// Text
546// ----------------------------------------------------------------------------
547
548static void renderText(OpenGLRenderer* renderer, const jchar* text, int count,
549        jfloat x, jfloat y, int flags, SkPaint* paint) {
550    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
551            text, 0, count, count, flags);
552    if (value == NULL) {
553        return;
554    }
555    const jchar* glyphs = value->getGlyphs();
556    size_t glyphsCount = value->getGlyphsCount();
557    jfloat totalAdvance = value->getTotalAdvance();
558    const float* positions = value->getPos();
559    int bytesCount = glyphsCount * sizeof(jchar);
560    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount, x, y,
561            positions, paint, totalAdvance);
562}
563
564static void renderTextOnPath(OpenGLRenderer* renderer, const jchar* text, int count,
565        SkPath* path, jfloat hOffset, jfloat vOffset, int flags, SkPaint* paint) {
566    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
567            text, 0, count, count, flags);
568    if (value == NULL) {
569        return;
570    }
571    const jchar* glyphs = value->getGlyphs();
572    size_t glyphsCount = value->getGlyphsCount();
573    int bytesCount = glyphsCount * sizeof(jchar);
574    renderer->drawTextOnPath((const char*) glyphs, bytesCount, glyphsCount, path,
575            hOffset, vOffset, paint);
576}
577
578static void renderTextRun(OpenGLRenderer* renderer, const jchar* text,
579        jint start, jint count, jint contextCount, jfloat x, jfloat y,
580        int flags, SkPaint* paint) {
581    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
582            text, start, count, contextCount, flags);
583    if (value == NULL) {
584        return;
585    }
586    const jchar* glyphs = value->getGlyphs();
587    size_t glyphsCount = value->getGlyphsCount();
588    jfloat totalAdvance = value->getTotalAdvance();
589    const float* positions = value->getPos();
590    int bytesCount = glyphsCount * sizeof(jchar);
591    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount, x, y,
592            positions, paint, totalAdvance);
593}
594
595static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject clazz,
596        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
597        jfloat x, jfloat y, jint flags, SkPaint* paint) {
598    jchar* textArray = env->GetCharArrayElements(text, NULL);
599    renderText(renderer, textArray + index, count, x, y, flags, paint);
600    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
601}
602
603static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject clazz,
604        OpenGLRenderer* renderer, jstring text, jint start, jint end,
605        jfloat x, jfloat y, jint flags, SkPaint* paint) {
606    const jchar* textArray = env->GetStringChars(text, NULL);
607    renderText(renderer, textArray + start, end - start, x, y, flags, paint);
608    env->ReleaseStringChars(text, textArray);
609}
610
611static void android_view_GLES20Canvas_drawTextArrayOnPath(JNIEnv* env, jobject clazz,
612        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
613        SkPath* path, jfloat hOffset, jfloat vOffset, jint flags, SkPaint* paint) {
614    jchar* textArray = env->GetCharArrayElements(text, NULL);
615    renderTextOnPath(renderer, textArray + index, count, path,
616            hOffset, vOffset, flags, paint);
617    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
618}
619
620static void android_view_GLES20Canvas_drawTextOnPath(JNIEnv* env, jobject clazz,
621        OpenGLRenderer* renderer, jstring text, jint start, jint end,
622        SkPath* path, jfloat hOffset, jfloat vOffset, jint flags, SkPaint* paint) {
623    const jchar* textArray = env->GetStringChars(text, NULL);
624    renderTextOnPath(renderer, textArray + start, end - start, path,
625            hOffset, vOffset, flags, paint);
626    env->ReleaseStringChars(text, textArray);
627}
628
629static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject clazz,
630        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
631        jint contextIndex, jint contextCount, jfloat x, jfloat y, jint dirFlags,
632        SkPaint* paint) {
633    jchar* textArray = env->GetCharArrayElements(text, NULL);
634    renderTextRun(renderer, textArray + contextIndex, index - contextIndex,
635            count, contextCount, x, y, dirFlags, paint);
636    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
637 }
638
639static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject clazz,
640        OpenGLRenderer* renderer, jstring text, jint start, jint end,
641        jint contextStart, int contextEnd, jfloat x, jfloat y, jint dirFlags,
642        SkPaint* paint) {
643    const jchar* textArray = env->GetStringChars(text, NULL);
644    jint count = end - start;
645    jint contextCount = contextEnd - contextStart;
646    renderTextRun(renderer, textArray + contextStart, start - contextStart,
647            count, contextCount, x, y, dirFlags, paint);
648    env->ReleaseStringChars(text, textArray);
649}
650
651static void renderPosText(OpenGLRenderer* renderer, const jchar* text, int count,
652        const jfloat* positions, jint dirFlags, SkPaint* paint) {
653    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
654            text, 0, count, count, dirFlags);
655    if (value == NULL) {
656        return;
657    }
658    const jchar* glyphs = value->getGlyphs();
659    size_t glyphsCount = value->getGlyphsCount();
660    if (count < int(glyphsCount)) glyphsCount = count;
661    int bytesCount = glyphsCount * sizeof(jchar);
662
663    renderer->drawPosText((const char*) glyphs, bytesCount, glyphsCount, positions, paint);
664}
665
666static void android_view_GLES20Canvas_drawPosTextArray(JNIEnv* env, jobject clazz,
667        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
668        jfloatArray pos, SkPaint* paint) {
669    jchar* textArray = env->GetCharArrayElements(text, NULL);
670    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
671
672    renderPosText(renderer, textArray + index, count, positions, kBidi_LTR, paint);
673
674    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
675    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
676}
677
678static void android_view_GLES20Canvas_drawPosText(JNIEnv* env, jobject clazz,
679        OpenGLRenderer* renderer, jstring text, jint start, jint end,
680        jfloatArray pos, SkPaint* paint) {
681    const jchar* textArray = env->GetStringChars(text, NULL);
682    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
683
684    renderPosText(renderer, textArray + start, end - start, positions, kBidi_LTR, paint);
685
686    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
687    env->ReleaseStringChars(text, textArray);
688}
689
690// ----------------------------------------------------------------------------
691// Display lists
692// ----------------------------------------------------------------------------
693
694static DisplayList* android_view_GLES20Canvas_getDisplayList(JNIEnv* env,
695        jobject clazz, DisplayListRenderer* renderer, DisplayList* displayList) {
696    return renderer->getDisplayList(displayList);
697}
698
699static jint android_view_GLES20Canvas_getDisplayListSize(JNIEnv* env,
700        jobject clazz, DisplayList* displayList) {
701    return displayList->getSize();
702}
703
704static void android_view_GLES20Canvas_setDisplayListName(JNIEnv* env,
705        jobject clazz, DisplayList* displayList, jstring name) {
706    if (name != NULL) {
707        const char* textArray = env->GetStringUTFChars(name, NULL);
708        displayList->setName(textArray);
709        env->ReleaseStringUTFChars(name, textArray);
710    }
711}
712
713static OpenGLRenderer* android_view_GLES20Canvas_createDisplayListRenderer(JNIEnv* env,
714        jobject clazz) {
715    return new DisplayListRenderer;
716}
717
718static void android_view_GLES20Canvas_resetDisplayListRenderer(JNIEnv* env,
719        jobject clazz, DisplayListRenderer* renderer) {
720    renderer->reset();
721}
722
723static void android_view_GLES20Canvas_destroyDisplayList(JNIEnv* env,
724        jobject clazz, DisplayList* displayList) {
725    DisplayList::destroyDisplayListDeferred(displayList);
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, SkPaint* paint) {
869    renderer->drawLayer(layer, x, y, paint);
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",        "()V",             (void*) android_view_GLES20Canvas_initCaches },
933    { "nTerminateCaches",   "()V",             (void*) android_view_GLES20Canvas_terminateCaches },
934
935    { "nCreateRenderer",    "()I",             (void*) android_view_GLES20Canvas_createRenderer },
936    { "nDestroyRenderer",   "(I)V",            (void*) android_view_GLES20Canvas_destroyRenderer },
937    { "nSetViewport",       "(III)V",          (void*) android_view_GLES20Canvas_setViewport },
938    { "nPrepare",           "(IZ)I",           (void*) android_view_GLES20Canvas_prepare },
939    { "nPrepareDirty",      "(IIIIIZ)I",       (void*) android_view_GLES20Canvas_prepareDirty },
940    { "nFinish",            "(I)V",            (void*) android_view_GLES20Canvas_finish },
941
942    { "nGetStencilSize",    "()I",             (void*) android_view_GLES20Canvas_getStencilSize },
943
944    { "nCallDrawGLFunction", "(II)I",          (void*) android_view_GLES20Canvas_callDrawGLFunction },
945    { "nDetachFunctor",      "(II)V",          (void*) android_view_GLES20Canvas_detachFunctor },
946    { "nAttachFunctor",      "(II)V",          (void*) android_view_GLES20Canvas_attachFunctor },
947    { "nInvokeFunctors",     "(ILandroid/graphics/Rect;)I",
948            (void*) android_view_GLES20Canvas_invokeFunctors },
949
950    { "nSave",              "(II)I",           (void*) android_view_GLES20Canvas_save },
951    { "nRestore",           "(I)V",            (void*) android_view_GLES20Canvas_restore },
952    { "nRestoreToCount",    "(II)V",           (void*) android_view_GLES20Canvas_restoreToCount },
953    { "nGetSaveCount",      "(I)I",            (void*) android_view_GLES20Canvas_getSaveCount },
954
955    { "nSaveLayer",         "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayer },
956    { "nSaveLayer",         "(III)I",          (void*) android_view_GLES20Canvas_saveLayerClip },
957    { "nSaveLayerAlpha",    "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayerAlpha },
958    { "nSaveLayerAlpha",    "(III)I",          (void*) android_view_GLES20Canvas_saveLayerAlphaClip },
959
960    { "nQuickReject",       "(IFFFF)Z",        (void*) android_view_GLES20Canvas_quickReject },
961    { "nClipRect",          "(IFFFFI)Z",       (void*) android_view_GLES20Canvas_clipRectF },
962    { "nClipRect",          "(IIIIII)Z",       (void*) android_view_GLES20Canvas_clipRect },
963
964    { "nTranslate",         "(IFF)V",          (void*) android_view_GLES20Canvas_translate },
965    { "nRotate",            "(IF)V",           (void*) android_view_GLES20Canvas_rotate },
966    { "nScale",             "(IFF)V",          (void*) android_view_GLES20Canvas_scale },
967    { "nSkew",              "(IFF)V",          (void*) android_view_GLES20Canvas_skew },
968
969    { "nSetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_setMatrix },
970    { "nGetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_getMatrix },
971    { "nConcatMatrix",      "(II)V",           (void*) android_view_GLES20Canvas_concatMatrix },
972
973    { "nDrawBitmap",        "(II[BFFI)V",      (void*) android_view_GLES20Canvas_drawBitmap },
974    { "nDrawBitmap",        "(II[BFFFFFFFFI)V",(void*) android_view_GLES20Canvas_drawBitmapRect },
975    { "nDrawBitmap",        "(II[BII)V",       (void*) android_view_GLES20Canvas_drawBitmapMatrix },
976    { "nDrawBitmap",        "(I[IIIFFIIZI)V",  (void*) android_view_GLES20Canvas_drawBitmapData },
977
978    { "nDrawBitmapMesh",    "(II[BII[FI[III)V",(void*) android_view_GLES20Canvas_drawBitmapMesh },
979
980    { "nDrawPatch",         "(II[B[BFFFFI)V",  (void*) android_view_GLES20Canvas_drawPatch },
981
982    { "nDrawColor",         "(III)V",          (void*) android_view_GLES20Canvas_drawColor },
983    { "nDrawRect",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawRect },
984    { "nDrawRects",         "(III)V",          (void*) android_view_GLES20Canvas_drawRegionAsRects },
985    { "nDrawRects",         "(I[FII)V",        (void*) android_view_GLES20Canvas_drawRects },
986    { "nDrawRoundRect",     "(IFFFFFFI)V",     (void*) android_view_GLES20Canvas_drawRoundRect },
987    { "nDrawCircle",        "(IFFFI)V",        (void*) android_view_GLES20Canvas_drawCircle },
988    { "nDrawOval",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawOval },
989    { "nDrawArc",           "(IFFFFFFZI)V",    (void*) android_view_GLES20Canvas_drawArc },
990    { "nDrawPoints",        "(I[FIII)V",       (void*) android_view_GLES20Canvas_drawPoints },
991
992    { "nDrawPath",          "(III)V",          (void*) android_view_GLES20Canvas_drawPath },
993    { "nDrawLines",         "(I[FIII)V",       (void*) android_view_GLES20Canvas_drawLines },
994
995    { "nResetModifiers",    "(II)V",           (void*) android_view_GLES20Canvas_resetModifiers },
996    { "nSetupShader",       "(II)V",           (void*) android_view_GLES20Canvas_setupShader },
997    { "nSetupColorFilter",  "(II)V",           (void*) android_view_GLES20Canvas_setupColorFilter },
998    { "nSetupShadow",       "(IFFFI)V",        (void*) android_view_GLES20Canvas_setupShadow },
999
1000    { "nSetupPaintFilter",  "(III)V",          (void*) android_view_GLES20Canvas_setupPaintFilter },
1001    { "nResetPaintFilter",  "(I)V",            (void*) android_view_GLES20Canvas_resetPaintFilter },
1002
1003    { "nDrawText",          "(I[CIIFFII)V",    (void*) android_view_GLES20Canvas_drawTextArray },
1004    { "nDrawText",          "(ILjava/lang/String;IIFFII)V",
1005            (void*) android_view_GLES20Canvas_drawText },
1006
1007    { "nDrawTextOnPath",    "(I[CIIIFFII)V",   (void*) android_view_GLES20Canvas_drawTextArrayOnPath },
1008    { "nDrawTextOnPath",    "(ILjava/lang/String;IIIFFII)V",
1009            (void*) android_view_GLES20Canvas_drawTextOnPath },
1010
1011    { "nDrawTextRun",       "(I[CIIIIFFII)V",  (void*) android_view_GLES20Canvas_drawTextRunArray },
1012    { "nDrawTextRun",       "(ILjava/lang/String;IIIIFFII)V",
1013            (void*) android_view_GLES20Canvas_drawTextRun },
1014
1015    { "nDrawPosText",       "(I[CII[FI)V",     (void*) android_view_GLES20Canvas_drawPosTextArray },
1016    { "nDrawPosText",       "(ILjava/lang/String;II[FI)V",
1017            (void*) android_view_GLES20Canvas_drawPosText },
1018
1019    { "nGetClipBounds",     "(ILandroid/graphics/Rect;)Z",
1020            (void*) android_view_GLES20Canvas_getClipBounds },
1021
1022    { "nGetDisplayList",         "(II)I",      (void*) android_view_GLES20Canvas_getDisplayList },
1023    { "nDestroyDisplayList",     "(I)V",       (void*) android_view_GLES20Canvas_destroyDisplayList },
1024    { "nGetDisplayListSize",     "(I)I",       (void*) android_view_GLES20Canvas_getDisplayListSize },
1025    { "nSetDisplayListName",     "(ILjava/lang/String;)V",
1026            (void*) android_view_GLES20Canvas_setDisplayListName },
1027    { "nDrawDisplayList",        "(IILandroid/graphics/Rect;I)I",
1028            (void*) android_view_GLES20Canvas_drawDisplayList },
1029
1030    { "nCreateDisplayListRenderer", "()I",     (void*) android_view_GLES20Canvas_createDisplayListRenderer },
1031    { "nResetDisplayListRenderer",  "(I)V",    (void*) android_view_GLES20Canvas_resetDisplayListRenderer },
1032
1033    { "nOutputDisplayList",      "(II)V",      (void*) android_view_GLES20Canvas_outputDisplayList },
1034    { "nInterrupt",              "(I)V",       (void*) android_view_GLES20Canvas_interrupt },
1035    { "nResume",                 "(I)V",       (void*) android_view_GLES20Canvas_resume },
1036
1037    { "nCreateLayerRenderer",    "(I)I",       (void*) android_view_GLES20Canvas_createLayerRenderer },
1038    { "nCreateLayer",            "(IIZ[I)I",   (void*) android_view_GLES20Canvas_createLayer },
1039    { "nResizeLayer",            "(III[I)Z" ,  (void*) android_view_GLES20Canvas_resizeLayer },
1040    { "nSetLayerPaint",          "(II)V",      (void*) android_view_GLES20Canvas_setLayerPaint },
1041    { "nSetLayerColorFilter",    "(II)V",      (void*) android_view_GLES20Canvas_setLayerColorFilter },
1042    { "nSetOpaqueLayer",         "(IZ)V",      (void*) android_view_GLES20Canvas_setOpaqueLayer },
1043    { "nCreateTextureLayer",     "(Z[I)I",     (void*) android_view_GLES20Canvas_createTextureLayer },
1044    { "nUpdateTextureLayer",     "(IIIZLandroid/graphics/SurfaceTexture;)V",
1045            (void*) android_view_GLES20Canvas_updateTextureLayer },
1046    { "nUpdateRenderLayer",      "(IIIIIII)V", (void*) android_view_GLES20Canvas_updateRenderLayer },
1047    { "nClearLayerTexture",      "(I)V",       (void*) android_view_GLES20Canvas_clearLayerTexture },
1048    { "nDestroyLayer",           "(I)V",       (void*) android_view_GLES20Canvas_destroyLayer },
1049    { "nDestroyLayerDeferred",   "(I)V",       (void*) android_view_GLES20Canvas_destroyLayerDeferred },
1050    { "nDrawLayer",              "(IIFFI)V",   (void*) android_view_GLES20Canvas_drawLayer },
1051    { "nCopyLayer",              "(II)Z",      (void*) android_view_GLES20Canvas_copyLayer },
1052    { "nClearLayerUpdates",      "(I)V",       (void*) android_view_GLES20Canvas_clearLayerUpdates },
1053    { "nPushLayerUpdate",        "(II)V",      (void*) android_view_GLES20Canvas_pushLayerUpdate },
1054
1055    { "nSetTextureLayerTransform", "(II)V",    (void*) android_view_GLES20Canvas_setTextureLayerTransform },
1056
1057    { "nGetMaximumTextureWidth",  "()I",       (void*) android_view_GLES20Canvas_getMaxTextureWidth },
1058    { "nGetMaximumTextureHeight", "()I",       (void*) android_view_GLES20Canvas_getMaxTextureHeight },
1059
1060#endif
1061};
1062
1063static JNINativeMethod gActivityThreadMethods[] = {
1064    { "dumpGraphicsInfo",        "(Ljava/io/FileDescriptor;)V",
1065                                               (void*) android_app_ActivityThread_dumpGraphics }
1066};
1067
1068
1069#ifdef USE_OPENGL_RENDERER
1070    #define FIND_CLASS(var, className) \
1071            var = env->FindClass(className); \
1072            LOG_FATAL_IF(! var, "Unable to find class " className);
1073
1074    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
1075            var = env->GetMethodID(clazz, methodName, methodDescriptor); \
1076            LOG_FATAL_IF(! var, "Unable to find method " methodName);
1077#else
1078    #define FIND_CLASS(var, className)
1079    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor)
1080#endif
1081
1082int register_android_view_GLES20Canvas(JNIEnv* env) {
1083    jclass clazz;
1084    FIND_CLASS(clazz, "android/graphics/Rect");
1085    GET_METHOD_ID(gRectClassInfo.set, clazz, "set", "(IIII)V");
1086
1087    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
1088}
1089
1090const char* const kActivityThreadPathName = "android/app/ActivityThread";
1091
1092int register_android_app_ActivityThread(JNIEnv* env) {
1093    return AndroidRuntime::registerNativeMethods(env, kActivityThreadPathName,
1094            gActivityThreadMethods, NELEM(gActivityThreadMethods));
1095}
1096
1097};
1098