android_view_GLES20Canvas.cpp revision 2dbd185fd0e5dfe9addb677f42716c442b7e62bd 
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_clipPath(JNIEnv* env, jobject clazz,
278        OpenGLRenderer* renderer, SkPath* path, SkRegion::Op op) {
279    return renderer->clipPath(path, op);
280}
281
282static bool android_view_GLES20Canvas_clipRegion(JNIEnv* env, jobject clazz,
283        OpenGLRenderer* renderer, SkRegion* region, SkRegion::Op op) {
284    return renderer->clipRegion(region, op);
285}
286
287static bool android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject clazz,
288        OpenGLRenderer* renderer, jobject rect) {
289    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
290
291    env->CallVoidMethod(rect, gRectClassInfo.set,
292            int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
293
294    return !bounds.isEmpty();
295}
296
297// ----------------------------------------------------------------------------
298// Transforms
299// ----------------------------------------------------------------------------
300
301static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject clazz,
302        OpenGLRenderer* renderer, jfloat dx, jfloat dy) {
303    renderer->translate(dx, dy);
304}
305
306static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject clazz,
307        OpenGLRenderer* renderer, jfloat degrees) {
308    renderer->rotate(degrees);
309}
310
311static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject clazz,
312        OpenGLRenderer* renderer, jfloat sx, jfloat sy) {
313    renderer->scale(sx, sy);
314}
315
316static void android_view_GLES20Canvas_skew(JNIEnv* env, jobject clazz,
317        OpenGLRenderer* renderer, jfloat sx, jfloat sy) {
318    renderer->skew(sx, sy);
319}
320
321static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject clazz,
322        OpenGLRenderer* renderer, SkMatrix* matrix) {
323    renderer->setMatrix(matrix);
324}
325
326static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject clazz,
327        OpenGLRenderer* renderer, SkMatrix* matrix) {
328    renderer->getMatrix(matrix);
329}
330
331static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject clazz,
332        OpenGLRenderer* renderer, SkMatrix* matrix) {
333    renderer->concatMatrix(matrix);
334}
335
336// ----------------------------------------------------------------------------
337// Drawing
338// ----------------------------------------------------------------------------
339
340static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject clazz,
341        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer,
342        jfloat left, jfloat top, 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, left, top, paint);
347}
348
349static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject clazz,
350        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer,
351        float srcLeft, float srcTop, float srcRight, float srcBottom,
352        float dstLeft, float dstTop, float dstRight, float dstBottom, 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, srcLeft, srcTop, srcRight, srcBottom,
357            dstLeft, dstTop, dstRight, dstBottom, paint);
358}
359
360static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject clazz,
361        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, SkMatrix* matrix,
362        SkPaint* paint) {
363    // This object allows the renderer to allocate a global JNI ref to the buffer object.
364    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
365
366    renderer->drawBitmap(bitmap, matrix, paint);
367}
368
369static void android_view_GLES20Canvas_drawBitmapData(JNIEnv* env, jobject clazz,
370        OpenGLRenderer* renderer, jintArray colors, jint offset, jint stride,
371        jfloat left, jfloat top, jint width, jint height, jboolean hasAlpha, SkPaint* paint) {
372    SkBitmap* bitmap = new SkBitmap;
373    bitmap->setConfig(hasAlpha ? SkBitmap::kARGB_8888_Config : SkBitmap::kRGB_565_Config,
374            width, height);
375
376    if (!bitmap->allocPixels()) {
377        delete bitmap;
378        return;
379    }
380
381    if (!GraphicsJNI::SetPixels(env, colors, offset, stride, 0, 0, width, height, *bitmap)) {
382        delete bitmap;
383        return;
384    }
385
386    renderer->drawBitmapData(bitmap, left, top, paint);
387
388    // If the renderer is a deferred renderer it will own the bitmap
389    if (!renderer->isDeferred()) {
390        delete bitmap;
391    }
392}
393
394static void android_view_GLES20Canvas_drawBitmapMesh(JNIEnv* env, jobject clazz,
395        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer,
396        jint meshWidth, jint meshHeight, jfloatArray vertices, jint offset,
397        jintArray colors, jint colorOffset, SkPaint* paint) {
398    // This object allows the renderer to allocate a global JNI ref to the buffer object.
399    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
400
401    jfloat* verticesArray = vertices ? env->GetFloatArrayElements(vertices, NULL) + offset : NULL;
402    jint* colorsArray = colors ? env->GetIntArrayElements(colors, NULL) + colorOffset : NULL;
403
404    renderer->drawBitmapMesh(bitmap, meshWidth, meshHeight, verticesArray, colorsArray, paint);
405
406    if (vertices) env->ReleaseFloatArrayElements(vertices, verticesArray, 0);
407    if (colors) env->ReleaseIntArrayElements(colors, colorsArray, 0);
408}
409
410static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject clazz,
411        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, jbyteArray chunks,
412        float left, float top, float right, float bottom, SkPaint* paint) {
413    // This object allows the renderer to allocate a global JNI ref to the buffer object.
414    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
415
416    jbyte* storage = env->GetByteArrayElements(chunks, NULL);
417    Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(storage);
418    Res_png_9patch::deserialize(patch);
419
420    renderer->drawPatch(bitmap, &patch->xDivs[0], &patch->yDivs[0],
421            &patch->colors[0], patch->numXDivs, patch->numYDivs, patch->numColors,
422            left, top, right, bottom, paint);
423
424    env->ReleaseByteArrayElements(chunks, storage, 0);
425}
426
427static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject clazz,
428        OpenGLRenderer* renderer, jint color, SkXfermode::Mode mode) {
429    renderer->drawColor(color, mode);
430}
431
432static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject clazz,
433        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
434        SkPaint* paint) {
435    renderer->drawRect(left, top, right, bottom, paint);
436}
437
438static void android_view_GLES20Canvas_drawRoundRect(JNIEnv* env, jobject clazz,
439        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
440        jfloat rx, jfloat ry, SkPaint* paint) {
441    renderer->drawRoundRect(left, top, right, bottom, rx, ry, paint);
442}
443
444static void android_view_GLES20Canvas_drawCircle(JNIEnv* env, jobject clazz,
445        OpenGLRenderer* renderer, jfloat x, jfloat y, jfloat radius, SkPaint* paint) {
446    renderer->drawCircle(x, y, radius, paint);
447}
448
449static void android_view_GLES20Canvas_drawOval(JNIEnv* env, jobject clazz,
450        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
451        SkPaint* paint) {
452    renderer->drawOval(left, top, right, bottom, paint);
453}
454
455static void android_view_GLES20Canvas_drawArc(JNIEnv* env, jobject clazz,
456        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
457        jfloat startAngle, jfloat sweepAngle, jboolean useCenter, SkPaint* paint) {
458    renderer->drawArc(left, top, right, bottom, startAngle, sweepAngle, useCenter, paint);
459}
460
461static void android_view_GLES20Canvas_drawRegionAsRects(JNIEnv* env, jobject clazz,
462        OpenGLRenderer* renderer, SkRegion* region, SkPaint* paint) {
463    if (paint->getStyle() != SkPaint::kFill_Style ||
464            (paint->isAntiAlias() && !renderer->isCurrentTransformSimple())) {
465        SkRegion::Iterator it(*region);
466        while (!it.done()) {
467            const SkIRect& r = it.rect();
468            renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint);
469            it.next();
470        }
471    } else {
472        int count = 0;
473        Vector<float> rects;
474        SkRegion::Iterator it(*region);
475        while (!it.done()) {
476            const SkIRect& r = it.rect();
477            rects.push(r.fLeft);
478            rects.push(r.fTop);
479            rects.push(r.fRight);
480            rects.push(r.fBottom);
481            count += 4;
482            it.next();
483        }
484        renderer->drawRects(rects.array(), count, paint);
485    }
486}
487
488static void android_view_GLES20Canvas_drawRects(JNIEnv* env, jobject clazz,
489        OpenGLRenderer* renderer, jfloatArray rects, jint count, SkPaint* paint) {
490    jfloat* storage = env->GetFloatArrayElements(rects, NULL);
491    renderer->drawRects(storage, count, paint);
492    env->ReleaseFloatArrayElements(rects, storage, 0);
493}
494
495static void android_view_GLES20Canvas_drawPoints(JNIEnv* env, jobject clazz,
496        OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) {
497    jfloat* storage = env->GetFloatArrayElements(points, NULL);
498    renderer->drawPoints(storage + offset, count, paint);
499    env->ReleaseFloatArrayElements(points, storage, 0);
500}
501
502static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject clazz,
503        OpenGLRenderer* renderer, SkPath* path, SkPaint* paint) {
504    renderer->drawPath(path, paint);
505}
506
507static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject clazz,
508        OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) {
509    jfloat* storage = env->GetFloatArrayElements(points, NULL);
510    renderer->drawLines(storage + offset, count, paint);
511    env->ReleaseFloatArrayElements(points, storage, 0);
512}
513
514// ----------------------------------------------------------------------------
515// Shaders and color filters
516// ----------------------------------------------------------------------------
517
518static void android_view_GLES20Canvas_resetModifiers(JNIEnv* env, jobject clazz,
519        OpenGLRenderer* renderer, jint modifiers) {
520    if (modifiers & MODIFIER_SHADOW) renderer->resetShadow();
521    if (modifiers & MODIFIER_SHADER) renderer->resetShader();
522    if (modifiers & MODIFIER_COLOR_FILTER) renderer->resetColorFilter();
523}
524
525static void android_view_GLES20Canvas_setupShader(JNIEnv* env, jobject clazz,
526        OpenGLRenderer* renderer, SkiaShader* shader) {
527    renderer->setupShader(shader);
528}
529
530static void android_view_GLES20Canvas_setupColorFilter(JNIEnv* env, jobject clazz,
531        OpenGLRenderer* renderer, SkiaColorFilter* filter) {
532    renderer->setupColorFilter(filter);
533}
534
535static void android_view_GLES20Canvas_setupShadow(JNIEnv* env, jobject clazz,
536        OpenGLRenderer* renderer, jfloat radius, jfloat dx, jfloat dy, jint color) {
537    renderer->setupShadow(radius, dx, dy, color);
538}
539
540// ----------------------------------------------------------------------------
541// Draw filters
542// ----------------------------------------------------------------------------
543
544static void android_view_GLES20Canvas_setupPaintFilter(JNIEnv* env, jobject clazz,
545        OpenGLRenderer* renderer, jint clearBits, jint setBits) {
546    renderer->setupPaintFilter(clearBits, setBits);
547}
548
549static void android_view_GLES20Canvas_resetPaintFilter(JNIEnv* env, jobject clazz,
550        OpenGLRenderer* renderer) {
551    renderer->resetPaintFilter();
552}
553
554// ----------------------------------------------------------------------------
555// Text
556// ----------------------------------------------------------------------------
557
558static void renderText(OpenGLRenderer* renderer, const jchar* text, int count,
559        jfloat x, jfloat y, int flags, SkPaint* paint) {
560    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
561            text, 0, count, count, flags);
562    if (value == NULL) {
563        return;
564    }
565    const jchar* glyphs = value->getGlyphs();
566    size_t glyphsCount = value->getGlyphsCount();
567    jfloat totalAdvance = value->getTotalAdvance();
568    const float* positions = value->getPos();
569    int bytesCount = glyphsCount * sizeof(jchar);
570    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount, x, y,
571            positions, paint, totalAdvance);
572}
573
574static void renderTextOnPath(OpenGLRenderer* renderer, const jchar* text, int count,
575        SkPath* path, jfloat hOffset, jfloat vOffset, int flags, SkPaint* paint) {
576    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
577            text, 0, count, count, flags);
578    if (value == NULL) {
579        return;
580    }
581    const jchar* glyphs = value->getGlyphs();
582    size_t glyphsCount = value->getGlyphsCount();
583    int bytesCount = glyphsCount * sizeof(jchar);
584    renderer->drawTextOnPath((const char*) glyphs, bytesCount, glyphsCount, path,
585            hOffset, vOffset, paint);
586}
587
588static void renderTextRun(OpenGLRenderer* renderer, const jchar* text,
589        jint start, jint count, jint contextCount, jfloat x, jfloat y,
590        int flags, SkPaint* paint) {
591    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
592            text, start, count, contextCount, flags);
593    if (value == NULL) {
594        return;
595    }
596    const jchar* glyphs = value->getGlyphs();
597    size_t glyphsCount = value->getGlyphsCount();
598    jfloat totalAdvance = value->getTotalAdvance();
599    const float* positions = value->getPos();
600    int bytesCount = glyphsCount * sizeof(jchar);
601    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount, x, y,
602            positions, paint, totalAdvance);
603}
604
605static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject clazz,
606        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
607        jfloat x, jfloat y, jint flags, SkPaint* paint) {
608    jchar* textArray = env->GetCharArrayElements(text, NULL);
609    renderText(renderer, textArray + index, count, x, y, flags, paint);
610    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
611}
612
613static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject clazz,
614        OpenGLRenderer* renderer, jstring text, jint start, jint end,
615        jfloat x, jfloat y, jint flags, SkPaint* paint) {
616    const jchar* textArray = env->GetStringChars(text, NULL);
617    renderText(renderer, textArray + start, end - start, x, y, flags, paint);
618    env->ReleaseStringChars(text, textArray);
619}
620
621static void android_view_GLES20Canvas_drawTextArrayOnPath(JNIEnv* env, jobject clazz,
622        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
623        SkPath* path, jfloat hOffset, jfloat vOffset, jint flags, SkPaint* paint) {
624    jchar* textArray = env->GetCharArrayElements(text, NULL);
625    renderTextOnPath(renderer, textArray + index, count, path,
626            hOffset, vOffset, flags, paint);
627    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
628}
629
630static void android_view_GLES20Canvas_drawTextOnPath(JNIEnv* env, jobject clazz,
631        OpenGLRenderer* renderer, jstring text, jint start, jint end,
632        SkPath* path, jfloat hOffset, jfloat vOffset, jint flags, SkPaint* paint) {
633    const jchar* textArray = env->GetStringChars(text, NULL);
634    renderTextOnPath(renderer, textArray + start, end - start, path,
635            hOffset, vOffset, flags, paint);
636    env->ReleaseStringChars(text, textArray);
637}
638
639static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject clazz,
640        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
641        jint contextIndex, jint contextCount, jfloat x, jfloat y, jint dirFlags,
642        SkPaint* paint) {
643    jchar* textArray = env->GetCharArrayElements(text, NULL);
644    renderTextRun(renderer, textArray + contextIndex, index - contextIndex,
645            count, contextCount, x, y, dirFlags, paint);
646    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
647 }
648
649static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject clazz,
650        OpenGLRenderer* renderer, jstring text, jint start, jint end,
651        jint contextStart, int contextEnd, jfloat x, jfloat y, jint dirFlags,
652        SkPaint* paint) {
653    const jchar* textArray = env->GetStringChars(text, NULL);
654    jint count = end - start;
655    jint contextCount = contextEnd - contextStart;
656    renderTextRun(renderer, textArray + contextStart, start - contextStart,
657            count, contextCount, x, y, dirFlags, paint);
658    env->ReleaseStringChars(text, textArray);
659}
660
661static void renderPosText(OpenGLRenderer* renderer, const jchar* text, int count,
662        const jfloat* positions, jint dirFlags, SkPaint* paint) {
663    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
664            text, 0, count, count, dirFlags);
665    if (value == NULL) {
666        return;
667    }
668    const jchar* glyphs = value->getGlyphs();
669    size_t glyphsCount = value->getGlyphsCount();
670    if (count < int(glyphsCount)) glyphsCount = count;
671    int bytesCount = glyphsCount * sizeof(jchar);
672
673    renderer->drawPosText((const char*) glyphs, bytesCount, glyphsCount, positions, paint);
674}
675
676static void android_view_GLES20Canvas_drawPosTextArray(JNIEnv* env, jobject clazz,
677        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
678        jfloatArray pos, SkPaint* paint) {
679    jchar* textArray = env->GetCharArrayElements(text, NULL);
680    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
681
682    renderPosText(renderer, textArray + index, count, positions, kBidi_LTR, paint);
683
684    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
685    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
686}
687
688static void android_view_GLES20Canvas_drawPosText(JNIEnv* env, jobject clazz,
689        OpenGLRenderer* renderer, jstring text, jint start, jint end,
690        jfloatArray pos, SkPaint* paint) {
691    const jchar* textArray = env->GetStringChars(text, NULL);
692    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
693
694    renderPosText(renderer, textArray + start, end - start, positions, kBidi_LTR, paint);
695
696    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
697    env->ReleaseStringChars(text, textArray);
698}
699
700// ----------------------------------------------------------------------------
701// Display lists
702// ----------------------------------------------------------------------------
703
704static DisplayList* android_view_GLES20Canvas_getDisplayList(JNIEnv* env,
705        jobject clazz, DisplayListRenderer* renderer, DisplayList* displayList) {
706    return renderer->getDisplayList(displayList);
707}
708
709static jint android_view_GLES20Canvas_getDisplayListSize(JNIEnv* env,
710        jobject clazz, DisplayList* displayList) {
711    return displayList->getSize();
712}
713
714static void android_view_GLES20Canvas_setDisplayListName(JNIEnv* env,
715        jobject clazz, DisplayList* displayList, jstring name) {
716    if (name != NULL) {
717        const char* textArray = env->GetStringUTFChars(name, NULL);
718        displayList->setName(textArray);
719        env->ReleaseStringUTFChars(name, textArray);
720    }
721}
722
723static OpenGLRenderer* android_view_GLES20Canvas_createDisplayListRenderer(JNIEnv* env,
724        jobject clazz) {
725    return new DisplayListRenderer;
726}
727
728static void android_view_GLES20Canvas_resetDisplayListRenderer(JNIEnv* env,
729        jobject clazz, DisplayListRenderer* renderer) {
730    renderer->reset();
731}
732
733static void android_view_GLES20Canvas_destroyDisplayList(JNIEnv* env,
734        jobject clazz, DisplayList* displayList) {
735    DisplayList::destroyDisplayListDeferred(displayList);
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, SkPaint* paint) {
879    renderer->drawLayer(layer, x, y, paint);
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",        "()V",             (void*) android_view_GLES20Canvas_initCaches },
943    { "nTerminateCaches",   "()V",             (void*) android_view_GLES20Canvas_terminateCaches },
944
945    { "nCreateRenderer",    "()I",             (void*) android_view_GLES20Canvas_createRenderer },
946    { "nDestroyRenderer",   "(I)V",            (void*) android_view_GLES20Canvas_destroyRenderer },
947    { "nSetViewport",       "(III)V",          (void*) android_view_GLES20Canvas_setViewport },
948    { "nPrepare",           "(IZ)I",           (void*) android_view_GLES20Canvas_prepare },
949    { "nPrepareDirty",      "(IIIIIZ)I",       (void*) android_view_GLES20Canvas_prepareDirty },
950    { "nFinish",            "(I)V",            (void*) android_view_GLES20Canvas_finish },
951
952    { "nGetStencilSize",    "()I",             (void*) android_view_GLES20Canvas_getStencilSize },
953
954    { "nCallDrawGLFunction", "(II)I",          (void*) android_view_GLES20Canvas_callDrawGLFunction },
955    { "nDetachFunctor",      "(II)V",          (void*) android_view_GLES20Canvas_detachFunctor },
956    { "nAttachFunctor",      "(II)V",          (void*) android_view_GLES20Canvas_attachFunctor },
957    { "nInvokeFunctors",     "(ILandroid/graphics/Rect;)I",
958            (void*) android_view_GLES20Canvas_invokeFunctors },
959
960    { "nSave",              "(II)I",           (void*) android_view_GLES20Canvas_save },
961    { "nRestore",           "(I)V",            (void*) android_view_GLES20Canvas_restore },
962    { "nRestoreToCount",    "(II)V",           (void*) android_view_GLES20Canvas_restoreToCount },
963    { "nGetSaveCount",      "(I)I",            (void*) android_view_GLES20Canvas_getSaveCount },
964
965    { "nSaveLayer",         "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayer },
966    { "nSaveLayer",         "(III)I",          (void*) android_view_GLES20Canvas_saveLayerClip },
967    { "nSaveLayerAlpha",    "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayerAlpha },
968    { "nSaveLayerAlpha",    "(III)I",          (void*) android_view_GLES20Canvas_saveLayerAlphaClip },
969
970    { "nQuickReject",       "(IFFFF)Z",        (void*) android_view_GLES20Canvas_quickReject },
971    { "nClipRect",          "(IFFFFI)Z",       (void*) android_view_GLES20Canvas_clipRectF },
972    { "nClipRect",          "(IIIIII)Z",       (void*) android_view_GLES20Canvas_clipRect },
973    { "nClipPath",          "(III)Z",          (void*) android_view_GLES20Canvas_clipPath },
974    { "nClipRegion",        "(III)Z",          (void*) android_view_GLES20Canvas_clipRegion },
975
976    { "nTranslate",         "(IFF)V",          (void*) android_view_GLES20Canvas_translate },
977    { "nRotate",            "(IF)V",           (void*) android_view_GLES20Canvas_rotate },
978    { "nScale",             "(IFF)V",          (void*) android_view_GLES20Canvas_scale },
979    { "nSkew",              "(IFF)V",          (void*) android_view_GLES20Canvas_skew },
980
981    { "nSetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_setMatrix },
982    { "nGetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_getMatrix },
983    { "nConcatMatrix",      "(II)V",           (void*) android_view_GLES20Canvas_concatMatrix },
984
985    { "nDrawBitmap",        "(II[BFFI)V",      (void*) android_view_GLES20Canvas_drawBitmap },
986    { "nDrawBitmap",        "(II[BFFFFFFFFI)V",(void*) android_view_GLES20Canvas_drawBitmapRect },
987    { "nDrawBitmap",        "(II[BII)V",       (void*) android_view_GLES20Canvas_drawBitmapMatrix },
988    { "nDrawBitmap",        "(I[IIIFFIIZI)V",  (void*) android_view_GLES20Canvas_drawBitmapData },
989
990    { "nDrawBitmapMesh",    "(II[BII[FI[III)V",(void*) android_view_GLES20Canvas_drawBitmapMesh },
991
992    { "nDrawPatch",         "(II[B[BFFFFI)V",  (void*) android_view_GLES20Canvas_drawPatch },
993
994    { "nDrawColor",         "(III)V",          (void*) android_view_GLES20Canvas_drawColor },
995    { "nDrawRect",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawRect },
996    { "nDrawRects",         "(III)V",          (void*) android_view_GLES20Canvas_drawRegionAsRects },
997    { "nDrawRects",         "(I[FII)V",        (void*) android_view_GLES20Canvas_drawRects },
998    { "nDrawRoundRect",     "(IFFFFFFI)V",     (void*) android_view_GLES20Canvas_drawRoundRect },
999    { "nDrawCircle",        "(IFFFI)V",        (void*) android_view_GLES20Canvas_drawCircle },
1000    { "nDrawOval",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawOval },
1001    { "nDrawArc",           "(IFFFFFFZI)V",    (void*) android_view_GLES20Canvas_drawArc },
1002    { "nDrawPoints",        "(I[FIII)V",       (void*) android_view_GLES20Canvas_drawPoints },
1003
1004    { "nDrawPath",          "(III)V",          (void*) android_view_GLES20Canvas_drawPath },
1005    { "nDrawLines",         "(I[FIII)V",       (void*) android_view_GLES20Canvas_drawLines },
1006
1007    { "nResetModifiers",    "(II)V",           (void*) android_view_GLES20Canvas_resetModifiers },
1008    { "nSetupShader",       "(II)V",           (void*) android_view_GLES20Canvas_setupShader },
1009    { "nSetupColorFilter",  "(II)V",           (void*) android_view_GLES20Canvas_setupColorFilter },
1010    { "nSetupShadow",       "(IFFFI)V",        (void*) android_view_GLES20Canvas_setupShadow },
1011
1012    { "nSetupPaintFilter",  "(III)V",          (void*) android_view_GLES20Canvas_setupPaintFilter },
1013    { "nResetPaintFilter",  "(I)V",            (void*) android_view_GLES20Canvas_resetPaintFilter },
1014
1015    { "nDrawText",          "(I[CIIFFII)V",    (void*) android_view_GLES20Canvas_drawTextArray },
1016    { "nDrawText",          "(ILjava/lang/String;IIFFII)V",
1017            (void*) android_view_GLES20Canvas_drawText },
1018
1019    { "nDrawTextOnPath",    "(I[CIIIFFII)V",   (void*) android_view_GLES20Canvas_drawTextArrayOnPath },
1020    { "nDrawTextOnPath",    "(ILjava/lang/String;IIIFFII)V",
1021            (void*) android_view_GLES20Canvas_drawTextOnPath },
1022
1023    { "nDrawTextRun",       "(I[CIIIIFFII)V",  (void*) android_view_GLES20Canvas_drawTextRunArray },
1024    { "nDrawTextRun",       "(ILjava/lang/String;IIIIFFII)V",
1025            (void*) android_view_GLES20Canvas_drawTextRun },
1026
1027    { "nDrawPosText",       "(I[CII[FI)V",     (void*) android_view_GLES20Canvas_drawPosTextArray },
1028    { "nDrawPosText",       "(ILjava/lang/String;II[FI)V",
1029            (void*) android_view_GLES20Canvas_drawPosText },
1030
1031    { "nGetClipBounds",     "(ILandroid/graphics/Rect;)Z",
1032            (void*) android_view_GLES20Canvas_getClipBounds },
1033
1034    { "nGetDisplayList",         "(II)I",      (void*) android_view_GLES20Canvas_getDisplayList },
1035    { "nDestroyDisplayList",     "(I)V",       (void*) android_view_GLES20Canvas_destroyDisplayList },
1036    { "nGetDisplayListSize",     "(I)I",       (void*) android_view_GLES20Canvas_getDisplayListSize },
1037    { "nSetDisplayListName",     "(ILjava/lang/String;)V",
1038            (void*) android_view_GLES20Canvas_setDisplayListName },
1039    { "nDrawDisplayList",        "(IILandroid/graphics/Rect;I)I",
1040            (void*) android_view_GLES20Canvas_drawDisplayList },
1041
1042    { "nCreateDisplayListRenderer", "()I",     (void*) android_view_GLES20Canvas_createDisplayListRenderer },
1043    { "nResetDisplayListRenderer",  "(I)V",    (void*) android_view_GLES20Canvas_resetDisplayListRenderer },
1044
1045    { "nOutputDisplayList",      "(II)V",      (void*) android_view_GLES20Canvas_outputDisplayList },
1046    { "nInterrupt",              "(I)V",       (void*) android_view_GLES20Canvas_interrupt },
1047    { "nResume",                 "(I)V",       (void*) android_view_GLES20Canvas_resume },
1048
1049    { "nCreateLayerRenderer",    "(I)I",       (void*) android_view_GLES20Canvas_createLayerRenderer },
1050    { "nCreateLayer",            "(IIZ[I)I",   (void*) android_view_GLES20Canvas_createLayer },
1051    { "nResizeLayer",            "(III[I)Z" ,  (void*) android_view_GLES20Canvas_resizeLayer },
1052    { "nSetLayerPaint",          "(II)V",      (void*) android_view_GLES20Canvas_setLayerPaint },
1053    { "nSetLayerColorFilter",    "(II)V",      (void*) android_view_GLES20Canvas_setLayerColorFilter },
1054    { "nSetOpaqueLayer",         "(IZ)V",      (void*) android_view_GLES20Canvas_setOpaqueLayer },
1055    { "nCreateTextureLayer",     "(Z[I)I",     (void*) android_view_GLES20Canvas_createTextureLayer },
1056    { "nUpdateTextureLayer",     "(IIIZLandroid/graphics/SurfaceTexture;)V",
1057            (void*) android_view_GLES20Canvas_updateTextureLayer },
1058    { "nUpdateRenderLayer",      "(IIIIIII)V", (void*) android_view_GLES20Canvas_updateRenderLayer },
1059    { "nClearLayerTexture",      "(I)V",       (void*) android_view_GLES20Canvas_clearLayerTexture },
1060    { "nDestroyLayer",           "(I)V",       (void*) android_view_GLES20Canvas_destroyLayer },
1061    { "nDestroyLayerDeferred",   "(I)V",       (void*) android_view_GLES20Canvas_destroyLayerDeferred },
1062    { "nDrawLayer",              "(IIFFI)V",   (void*) android_view_GLES20Canvas_drawLayer },
1063    { "nCopyLayer",              "(II)Z",      (void*) android_view_GLES20Canvas_copyLayer },
1064    { "nClearLayerUpdates",      "(I)V",       (void*) android_view_GLES20Canvas_clearLayerUpdates },
1065    { "nPushLayerUpdate",        "(II)V",      (void*) android_view_GLES20Canvas_pushLayerUpdate },
1066
1067    { "nSetTextureLayerTransform", "(II)V",    (void*) android_view_GLES20Canvas_setTextureLayerTransform },
1068
1069    { "nGetMaximumTextureWidth",  "()I",       (void*) android_view_GLES20Canvas_getMaxTextureWidth },
1070    { "nGetMaximumTextureHeight", "()I",       (void*) android_view_GLES20Canvas_getMaxTextureHeight },
1071
1072#endif
1073};
1074
1075static JNINativeMethod gActivityThreadMethods[] = {
1076    { "dumpGraphicsInfo",        "(Ljava/io/FileDescriptor;)V",
1077                                               (void*) android_app_ActivityThread_dumpGraphics }
1078};
1079
1080
1081#ifdef USE_OPENGL_RENDERER
1082    #define FIND_CLASS(var, className) \
1083            var = env->FindClass(className); \
1084            LOG_FATAL_IF(! var, "Unable to find class " className);
1085
1086    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
1087            var = env->GetMethodID(clazz, methodName, methodDescriptor); \
1088            LOG_FATAL_IF(! var, "Unable to find method " methodName);
1089#else
1090    #define FIND_CLASS(var, className)
1091    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor)
1092#endif
1093
1094int register_android_view_GLES20Canvas(JNIEnv* env) {
1095    jclass clazz;
1096    FIND_CLASS(clazz, "android/graphics/Rect");
1097    GET_METHOD_ID(gRectClassInfo.set, clazz, "set", "(IIII)V");
1098
1099    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
1100}
1101
1102const char* const kActivityThreadPathName = "android/app/ActivityThread";
1103
1104int register_android_app_ActivityThread(JNIEnv* env) {
1105    return AndroidRuntime::registerNativeMethods(env, kActivityThreadPathName,
1106            gActivityThreadMethods, NELEM(gActivityThreadMethods));
1107}
1108
1109};
1110