android_view_GLES20Canvas.cpp revision 1abf5d62429e5a9329520b2f7c2b5a5e7a8e72ec 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define LOG_TAG "OpenGLRenderer"
18
19#include "jni.h"
20#include "GraphicsJNI.h"
21#include <nativehelper/JNIHelp.h>
22
23#include "android_view_GraphicBuffer.h"
24
25#include <android_runtime/AndroidRuntime.h>
26#include <android_runtime/android_graphics_SurfaceTexture.h>
27
28#include <androidfw/ResourceTypes.h>
29
30#include <gui/GLConsumer.h>
31
32#include <private/hwui/DrawGlInfo.h>
33
34#include <cutils/properties.h>
35
36#include <SkBitmap.h>
37#include <SkCanvas.h>
38#include <SkMatrix.h>
39#include <SkPaint.h>
40#include <SkRegion.h>
41#include <SkScalerContext.h>
42#include <SkTemplates.h>
43#include <SkXfermode.h>
44
45#include <DisplayList.h>
46#include <DisplayListRenderer.h>
47#include <LayerRenderer.h>
48#include <OpenGLRenderer.h>
49#include <SkiaShader.h>
50#include <SkiaColorFilter.h>
51#include <Stencil.h>
52#include <Rect.h>
53
54#include <TextLayout.h>
55#include <TextLayoutCache.h>
56
57namespace android {
58
59using namespace uirenderer;
60
61/**
62 * Note: OpenGLRenderer JNI layer is generated and compiled only on supported
63 *       devices. This means all the logic must be compiled only when the
64 *       preprocessor variable USE_OPENGL_RENDERER is defined.
65 */
66#ifdef USE_OPENGL_RENDERER
67
68// ----------------------------------------------------------------------------
69// Defines
70// ----------------------------------------------------------------------------
71
72// Debug
73#define DEBUG_RENDERER 0
74
75// Debug
76#if DEBUG_RENDERER
77    #define RENDERER_LOGD(...) ALOGD(__VA_ARGS__)
78#else
79    #define RENDERER_LOGD(...)
80#endif
81
82#define MODIFIER_SHADOW 1
83#define MODIFIER_SHADER 2
84#define MODIFIER_COLOR_FILTER 4
85
86// ----------------------------------------------------------------------------
87
88static struct {
89    jmethodID set;
90} gRectClassInfo;
91
92// ----------------------------------------------------------------------------
93// Caching
94// ----------------------------------------------------------------------------
95
96static void android_view_GLES20Canvas_flushCaches(JNIEnv* env, jobject clazz,
97        Caches::FlushMode mode) {
98    if (Caches::hasInstance()) {
99        Caches::getInstance().flush(mode);
100    }
101}
102
103static bool android_view_GLES20Canvas_initCaches(JNIEnv* env, jobject clazz) {
104    if (Caches::hasInstance()) {
105        return Caches::getInstance().init();
106    }
107    return false;
108}
109
110static void android_view_GLES20Canvas_terminateCaches(JNIEnv* env, jobject clazz) {
111    if (Caches::hasInstance()) {
112        Caches::getInstance().terminate();
113    }
114}
115
116// ----------------------------------------------------------------------------
117// Caching
118// ----------------------------------------------------------------------------
119
120static void android_view_GLES20Canvas_initAtlas(JNIEnv* env, jobject clazz,
121        jobject graphicBuffer, jintArray atlasMapArray, jint count) {
122
123    sp<GraphicBuffer> buffer = graphicBufferForJavaObject(env, graphicBuffer);
124    jint* atlasMap = env->GetIntArrayElements(atlasMapArray, NULL);
125
126    Caches::getInstance().assetAtlas.init(buffer, atlasMap, count);
127
128    env->ReleaseIntArrayElements(atlasMapArray, atlasMap, 0);
129}
130
131// ----------------------------------------------------------------------------
132// Constructors
133// ----------------------------------------------------------------------------
134
135static OpenGLRenderer* android_view_GLES20Canvas_createRenderer(JNIEnv* env, jobject clazz) {
136    RENDERER_LOGD("Create OpenGLRenderer");
137    OpenGLRenderer* renderer = new OpenGLRenderer();
138    renderer->initProperties();
139    return renderer;
140}
141
142static void android_view_GLES20Canvas_destroyRenderer(JNIEnv* env, jobject clazz,
143        OpenGLRenderer* renderer) {
144    RENDERER_LOGD("Destroy OpenGLRenderer");
145    delete renderer;
146}
147
148// ----------------------------------------------------------------------------
149// Setup
150// ----------------------------------------------------------------------------
151
152static void android_view_GLES20Canvas_setViewport(JNIEnv* env, jobject clazz,
153        OpenGLRenderer* renderer, jint width, jint height) {
154    renderer->setViewport(width, height);
155}
156
157static int android_view_GLES20Canvas_prepare(JNIEnv* env, jobject clazz,
158        OpenGLRenderer* renderer, jboolean opaque) {
159    return renderer->prepare(opaque);
160}
161
162static int android_view_GLES20Canvas_prepareDirty(JNIEnv* env, jobject clazz,
163        OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom,
164        jboolean opaque) {
165    return renderer->prepareDirty(left, top, right, bottom, opaque);
166}
167
168static void android_view_GLES20Canvas_finish(JNIEnv* env, jobject clazz,
169        OpenGLRenderer* renderer) {
170    renderer->finish();
171}
172
173static jint android_view_GLES20Canvas_getStencilSize(JNIEnv* env, jobject clazz) {
174    return Stencil::getStencilSize();
175}
176
177static void android_view_GLES20Canvas_setName(JNIEnv* env,
178        jobject clazz, OpenGLRenderer* renderer, jstring name) {
179    if (name != NULL) {
180        const char* textArray = env->GetStringUTFChars(name, NULL);
181        renderer->setName(textArray);
182        env->ReleaseStringUTFChars(name, textArray);
183    } else {
184        renderer->setName(NULL);
185    }
186}
187
188static void android_view_GLES20Canvas_setCountOverdrawEnabled(JNIEnv* env, jobject clazz,
189        OpenGLRenderer* renderer, jboolean enabled) {
190    renderer->setCountOverdrawEnabled(enabled);
191}
192
193static jfloat android_view_GLES20Canvas_getOverdraw(JNIEnv* env, jobject clazz,
194        OpenGLRenderer* renderer) {
195    return renderer->getOverdraw();
196}
197
198// ----------------------------------------------------------------------------
199// Functor
200// ----------------------------------------------------------------------------
201
202static jint android_view_GLES20Canvas_callDrawGLFunction(JNIEnv* env, jobject clazz,
203        OpenGLRenderer* renderer, Functor* functor) {
204    android::uirenderer::Rect dirty;
205    return renderer->callDrawGLFunction(functor, dirty);
206}
207
208static void android_view_GLES20Canvas_detachFunctor(JNIEnv* env,
209        jobject clazz, OpenGLRenderer* renderer, Functor* functor) {
210    renderer->detachFunctor(functor);
211}
212
213static void android_view_GLES20Canvas_attachFunctor(JNIEnv* env,
214        jobject clazz, OpenGLRenderer* renderer, Functor* functor) {
215    renderer->attachFunctor(functor);
216}
217
218static jint android_view_GLES20Canvas_invokeFunctors(JNIEnv* env,
219        jobject clazz, OpenGLRenderer* renderer, jobject dirty) {
220    android::uirenderer::Rect bounds;
221    status_t status = renderer->invokeFunctors(bounds);
222    if (status != DrawGlInfo::kStatusDone && dirty != NULL) {
223        env->CallVoidMethod(dirty, gRectClassInfo.set,
224                int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
225    }
226    return status;
227}
228
229// ----------------------------------------------------------------------------
230// Misc
231// ----------------------------------------------------------------------------
232
233static jint android_view_GLES20Canvas_getMaxTextureWidth(JNIEnv* env, jobject clazz) {
234    return Caches::getInstance().maxTextureSize;
235}
236
237static jint android_view_GLES20Canvas_getMaxTextureHeight(JNIEnv* env, jobject clazz) {
238    return Caches::getInstance().maxTextureSize;
239}
240
241// ----------------------------------------------------------------------------
242// State
243// ----------------------------------------------------------------------------
244
245static jint android_view_GLES20Canvas_save(JNIEnv* env, jobject clazz, OpenGLRenderer* renderer,
246        jint flags) {
247    return renderer->save(flags);
248}
249
250static jint android_view_GLES20Canvas_getSaveCount(JNIEnv* env, jobject clazz,
251        OpenGLRenderer* renderer) {
252    return renderer->getSaveCount();
253}
254
255static void android_view_GLES20Canvas_restore(JNIEnv* env, jobject clazz,
256        OpenGLRenderer* renderer) {
257    renderer->restore();
258}
259
260static void android_view_GLES20Canvas_restoreToCount(JNIEnv* env, jobject clazz,
261        OpenGLRenderer* renderer, jint saveCount) {
262    renderer->restoreToCount(saveCount);
263}
264
265// ----------------------------------------------------------------------------
266// Layers
267// ----------------------------------------------------------------------------
268
269static jint android_view_GLES20Canvas_saveLayer(JNIEnv* env, jobject clazz,
270        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
271        SkPaint* paint, jint saveFlags) {
272    return renderer->saveLayer(left, top, right, bottom, paint, saveFlags);
273}
274
275static jint android_view_GLES20Canvas_saveLayerClip(JNIEnv* env, jobject clazz,
276        OpenGLRenderer* renderer, SkPaint* paint, jint saveFlags) {
277    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
278    return renderer->saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom,
279            paint, saveFlags);
280}
281
282static jint android_view_GLES20Canvas_saveLayerAlpha(JNIEnv* env, jobject clazz,
283        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
284        jint alpha, jint saveFlags) {
285    return renderer->saveLayerAlpha(left, top, right, bottom, alpha, saveFlags);
286}
287
288static jint android_view_GLES20Canvas_saveLayerAlphaClip(JNIEnv* env, jobject clazz,
289        OpenGLRenderer* renderer, jint alpha, jint saveFlags) {
290    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
291    return renderer->saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom,
292            alpha, saveFlags);
293}
294
295// ----------------------------------------------------------------------------
296// Clipping
297// ----------------------------------------------------------------------------
298
299static bool android_view_GLES20Canvas_quickReject(JNIEnv* env, jobject clazz,
300        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom) {
301    return renderer->quickRejectNoScissor(left, top, right, bottom);
302}
303
304static bool android_view_GLES20Canvas_clipRectF(JNIEnv* env, jobject clazz,
305        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
306        SkRegion::Op op) {
307    return renderer->clipRect(left, top, right, bottom, op);
308}
309
310static bool android_view_GLES20Canvas_clipRect(JNIEnv* env, jobject clazz,
311        OpenGLRenderer* renderer, jint left, jint top, jint right, jint bottom,
312        SkRegion::Op op) {
313    return renderer->clipRect(float(left), float(top), float(right), float(bottom), op);
314}
315
316static bool android_view_GLES20Canvas_clipPath(JNIEnv* env, jobject clazz,
317        OpenGLRenderer* renderer, SkPath* path, SkRegion::Op op) {
318    return renderer->clipPath(path, op);
319}
320
321static bool android_view_GLES20Canvas_clipRegion(JNIEnv* env, jobject clazz,
322        OpenGLRenderer* renderer, SkRegion* region, SkRegion::Op op) {
323    return renderer->clipRegion(region, op);
324}
325
326static bool android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject clazz,
327        OpenGLRenderer* renderer, jobject rect) {
328    const android::uirenderer::Rect& bounds(renderer->getClipBounds());
329
330    env->CallVoidMethod(rect, gRectClassInfo.set,
331            int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
332
333    return !bounds.isEmpty();
334}
335
336// ----------------------------------------------------------------------------
337// Transforms
338// ----------------------------------------------------------------------------
339
340static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject clazz,
341        OpenGLRenderer* renderer, jfloat dx, jfloat dy) {
342    renderer->translate(dx, dy);
343}
344
345static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject clazz,
346        OpenGLRenderer* renderer, jfloat degrees) {
347    renderer->rotate(degrees);
348}
349
350static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject clazz,
351        OpenGLRenderer* renderer, jfloat sx, jfloat sy) {
352    renderer->scale(sx, sy);
353}
354
355static void android_view_GLES20Canvas_skew(JNIEnv* env, jobject clazz,
356        OpenGLRenderer* renderer, jfloat sx, jfloat sy) {
357    renderer->skew(sx, sy);
358}
359
360static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject clazz,
361        OpenGLRenderer* renderer, SkMatrix* matrix) {
362    renderer->setMatrix(matrix);
363}
364
365static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject clazz,
366        OpenGLRenderer* renderer, SkMatrix* matrix) {
367    renderer->getMatrix(matrix);
368}
369
370static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject clazz,
371        OpenGLRenderer* renderer, SkMatrix* matrix) {
372    renderer->concatMatrix(matrix);
373}
374
375// ----------------------------------------------------------------------------
376// Drawing
377// ----------------------------------------------------------------------------
378
379static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject clazz,
380        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer,
381        jfloat left, jfloat top, SkPaint* paint) {
382    // This object allows the renderer to allocate a global JNI ref to the buffer object.
383    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
384
385    renderer->drawBitmap(bitmap, left, top, paint);
386}
387
388static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject clazz,
389        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer,
390        float srcLeft, float srcTop, float srcRight, float srcBottom,
391        float dstLeft, float dstTop, float dstRight, float dstBottom, SkPaint* paint) {
392    // This object allows the renderer to allocate a global JNI ref to the buffer object.
393    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
394
395    renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom,
396            dstLeft, dstTop, dstRight, dstBottom, paint);
397}
398
399static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject clazz,
400        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer,
401        SkMatrix* matrix, SkPaint* paint) {
402    // This object allows the renderer to allocate a global JNI ref to the buffer object.
403    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
404
405    renderer->drawBitmap(bitmap, matrix, paint);
406}
407
408static void android_view_GLES20Canvas_drawBitmapData(JNIEnv* env, jobject clazz,
409        OpenGLRenderer* renderer, jintArray colors, jint offset, jint stride,
410        jfloat left, jfloat top, jint width, jint height, jboolean hasAlpha, SkPaint* paint) {
411    SkBitmap* bitmap = new SkBitmap;
412    bitmap->setConfig(hasAlpha ? SkBitmap::kARGB_8888_Config : SkBitmap::kRGB_565_Config,
413            width, height);
414
415    if (!bitmap->allocPixels()) {
416        delete bitmap;
417        return;
418    }
419
420    if (!GraphicsJNI::SetPixels(env, colors, offset, stride, 0, 0, width, height, *bitmap, true)) {
421        delete bitmap;
422        return;
423    }
424
425    renderer->drawBitmapData(bitmap, left, top, paint);
426
427    // If the renderer is a deferred renderer it will own the bitmap
428    if (!renderer->isDeferred()) {
429        delete bitmap;
430    }
431}
432
433static void android_view_GLES20Canvas_drawBitmapMesh(JNIEnv* env, jobject clazz,
434        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer,
435        jint meshWidth, jint meshHeight, jfloatArray vertices, jint offset, jintArray colors,
436        jint colorOffset, SkPaint* paint) {
437    // This object allows the renderer to allocate a global JNI ref to the buffer object.
438    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
439
440    jfloat* verticesArray = vertices ? env->GetFloatArrayElements(vertices, NULL) + offset : NULL;
441    jint* colorsArray = colors ? env->GetIntArrayElements(colors, NULL) + colorOffset : NULL;
442
443    renderer->drawBitmapMesh(bitmap, meshWidth, meshHeight, verticesArray, colorsArray, paint);
444
445    if (vertices) env->ReleaseFloatArrayElements(vertices, verticesArray, 0);
446    if (colors) env->ReleaseIntArrayElements(colors, colorsArray, 0);
447}
448
449static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject clazz,
450        OpenGLRenderer* renderer, SkBitmap* bitmap, jbyteArray buffer, Res_png_9patch* patch,
451        float left, float top, float right, float bottom, SkPaint* paint) {
452    // This object allows the renderer to allocate a global JNI ref to the buffer object.
453    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
454
455    renderer->drawPatch(bitmap, patch, left, top, right, bottom, paint);
456}
457
458static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject clazz,
459        OpenGLRenderer* renderer, jint color, SkXfermode::Mode mode) {
460    renderer->drawColor(color, mode);
461}
462
463static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject clazz,
464        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
465        SkPaint* paint) {
466    renderer->drawRect(left, top, right, bottom, paint);
467}
468
469static void android_view_GLES20Canvas_drawRoundRect(JNIEnv* env, jobject clazz,
470        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
471        jfloat rx, jfloat ry, SkPaint* paint) {
472    renderer->drawRoundRect(left, top, right, bottom, rx, ry, paint);
473}
474
475static void android_view_GLES20Canvas_drawCircle(JNIEnv* env, jobject clazz,
476        OpenGLRenderer* renderer, jfloat x, jfloat y, jfloat radius, SkPaint* paint) {
477    renderer->drawCircle(x, y, radius, paint);
478}
479
480static void android_view_GLES20Canvas_drawOval(JNIEnv* env, jobject clazz,
481        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
482        SkPaint* paint) {
483    renderer->drawOval(left, top, right, bottom, paint);
484}
485
486static void android_view_GLES20Canvas_drawArc(JNIEnv* env, jobject clazz,
487        OpenGLRenderer* renderer, jfloat left, jfloat top, jfloat right, jfloat bottom,
488        jfloat startAngle, jfloat sweepAngle, jboolean useCenter, SkPaint* paint) {
489    renderer->drawArc(left, top, right, bottom, startAngle, sweepAngle, useCenter, paint);
490}
491
492static void android_view_GLES20Canvas_drawRegionAsRects(JNIEnv* env, jobject clazz,
493        OpenGLRenderer* renderer, SkRegion* region, SkPaint* paint) {
494    if (paint->getStyle() != SkPaint::kFill_Style ||
495            (paint->isAntiAlias() && !renderer->isCurrentTransformSimple())) {
496        SkRegion::Iterator it(*region);
497        while (!it.done()) {
498            const SkIRect& r = it.rect();
499            renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint);
500            it.next();
501        }
502    } else {
503        int count = 0;
504        Vector<float> rects;
505        SkRegion::Iterator it(*region);
506        while (!it.done()) {
507            const SkIRect& r = it.rect();
508            rects.push(r.fLeft);
509            rects.push(r.fTop);
510            rects.push(r.fRight);
511            rects.push(r.fBottom);
512            count += 4;
513            it.next();
514        }
515        renderer->drawRects(rects.array(), count, paint);
516    }
517}
518
519static void android_view_GLES20Canvas_drawRects(JNIEnv* env, jobject clazz,
520        OpenGLRenderer* renderer, jfloatArray rects, jint count, SkPaint* paint) {
521    jfloat* storage = env->GetFloatArrayElements(rects, NULL);
522    renderer->drawRects(storage, count, paint);
523    env->ReleaseFloatArrayElements(rects, storage, 0);
524}
525
526static void android_view_GLES20Canvas_drawPoints(JNIEnv* env, jobject clazz,
527        OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) {
528    jfloat* storage = env->GetFloatArrayElements(points, NULL);
529    renderer->drawPoints(storage + offset, count, paint);
530    env->ReleaseFloatArrayElements(points, storage, 0);
531}
532
533static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject clazz,
534        OpenGLRenderer* renderer, SkPath* path, SkPaint* paint) {
535    renderer->drawPath(path, paint);
536}
537
538static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject clazz,
539        OpenGLRenderer* renderer, jfloatArray points, jint offset, jint count, SkPaint* paint) {
540    jfloat* storage = env->GetFloatArrayElements(points, NULL);
541    renderer->drawLines(storage + offset, count, paint);
542    env->ReleaseFloatArrayElements(points, storage, 0);
543}
544
545// ----------------------------------------------------------------------------
546// Shaders and color filters
547// ----------------------------------------------------------------------------
548
549static void android_view_GLES20Canvas_resetModifiers(JNIEnv* env, jobject clazz,
550        OpenGLRenderer* renderer, jint modifiers) {
551    if (modifiers & MODIFIER_SHADOW) renderer->resetShadow();
552    if (modifiers & MODIFIER_SHADER) renderer->resetShader();
553    if (modifiers & MODIFIER_COLOR_FILTER) renderer->resetColorFilter();
554}
555
556static void android_view_GLES20Canvas_setupShader(JNIEnv* env, jobject clazz,
557        OpenGLRenderer* renderer, SkiaShader* shader) {
558    renderer->setupShader(shader);
559}
560
561static void android_view_GLES20Canvas_setupColorFilter(JNIEnv* env, jobject clazz,
562        OpenGLRenderer* renderer, SkiaColorFilter* filter) {
563    renderer->setupColorFilter(filter);
564}
565
566static void android_view_GLES20Canvas_setupShadow(JNIEnv* env, jobject clazz,
567        OpenGLRenderer* renderer, jfloat radius, jfloat dx, jfloat dy, jint color) {
568    renderer->setupShadow(radius, dx, dy, color);
569}
570
571// ----------------------------------------------------------------------------
572// Draw filters
573// ----------------------------------------------------------------------------
574
575static void android_view_GLES20Canvas_setupPaintFilter(JNIEnv* env, jobject clazz,
576        OpenGLRenderer* renderer, jint clearBits, jint setBits) {
577    renderer->setupPaintFilter(clearBits, setBits);
578}
579
580static void android_view_GLES20Canvas_resetPaintFilter(JNIEnv* env, jobject clazz,
581        OpenGLRenderer* renderer) {
582    renderer->resetPaintFilter();
583}
584
585// ----------------------------------------------------------------------------
586// Text
587// ----------------------------------------------------------------------------
588
589static float xOffsetForTextAlign(SkPaint* paint, float totalAdvance) {
590    switch (paint->getTextAlign()) {
591        case SkPaint::kCenter_Align:
592            return -totalAdvance / 2.0f;
593            break;
594        case SkPaint::kRight_Align:
595            return -totalAdvance;
596            break;
597        default:
598            break;
599    }
600    return 0;
601}
602
603static void renderText(OpenGLRenderer* renderer, const jchar* text, int count,
604        jfloat x, jfloat y, int flags, SkPaint* paint) {
605    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
606            text, 0, count, count, flags);
607    if (value == NULL) {
608        return;
609    }
610    const jchar* glyphs = value->getGlyphs();
611    size_t glyphsCount = value->getGlyphsCount();
612    jfloat totalAdvance = value->getTotalAdvance();
613    x += xOffsetForTextAlign(paint, totalAdvance);
614    const float* positions = value->getPos();
615    int bytesCount = glyphsCount * sizeof(jchar);
616    const SkRect& r = value->getBounds();
617    android::uirenderer::Rect bounds(r.fLeft, r.fTop, r.fRight, r.fBottom);
618    bounds.translate(x, y);
619
620    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount,
621            x, y, positions, paint, totalAdvance, bounds);
622}
623
624static void renderTextOnPath(OpenGLRenderer* renderer, const jchar* text, int count,
625        SkPath* path, jfloat hOffset, jfloat vOffset, int flags, SkPaint* paint) {
626    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
627            text, 0, count, count, flags);
628    if (value == NULL) {
629        return;
630    }
631    const jchar* glyphs = value->getGlyphs();
632    size_t glyphsCount = value->getGlyphsCount();
633    int bytesCount = glyphsCount * sizeof(jchar);
634    renderer->drawTextOnPath((const char*) glyphs, bytesCount, glyphsCount, path,
635            hOffset, vOffset, paint);
636}
637
638static void renderTextRun(OpenGLRenderer* renderer, const jchar* text,
639        jint start, jint count, jint contextCount, jfloat x, jfloat y,
640        int flags, SkPaint* paint) {
641    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
642            text, start, count, contextCount, flags);
643    if (value == NULL) {
644        return;
645    }
646    const jchar* glyphs = value->getGlyphs();
647    size_t glyphsCount = value->getGlyphsCount();
648    jfloat totalAdvance = value->getTotalAdvance();
649    x += xOffsetForTextAlign(paint, totalAdvance);
650    const float* positions = value->getPos();
651    int bytesCount = glyphsCount * sizeof(jchar);
652    const SkRect& r = value->getBounds();
653    android::uirenderer::Rect bounds(r.fLeft, r.fTop, r.fRight, r.fBottom);
654    bounds.translate(x, y);
655
656    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount,
657            x, y, positions, paint, totalAdvance, bounds);
658}
659
660static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject clazz,
661        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
662        jfloat x, jfloat y, jint flags, SkPaint* paint) {
663    jchar* textArray = env->GetCharArrayElements(text, NULL);
664    renderText(renderer, textArray + index, count, x, y, flags, paint);
665    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
666}
667
668static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject clazz,
669        OpenGLRenderer* renderer, jstring text, jint start, jint end,
670        jfloat x, jfloat y, jint flags, SkPaint* paint) {
671    const jchar* textArray = env->GetStringChars(text, NULL);
672    renderText(renderer, textArray + start, end - start, x, y, flags, paint);
673    env->ReleaseStringChars(text, textArray);
674}
675
676static void android_view_GLES20Canvas_drawTextArrayOnPath(JNIEnv* env, jobject clazz,
677        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
678        SkPath* path, jfloat hOffset, jfloat vOffset, jint flags, SkPaint* paint) {
679    jchar* textArray = env->GetCharArrayElements(text, NULL);
680    renderTextOnPath(renderer, textArray + index, count, path,
681            hOffset, vOffset, flags, paint);
682    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
683}
684
685static void android_view_GLES20Canvas_drawTextOnPath(JNIEnv* env, jobject clazz,
686        OpenGLRenderer* renderer, jstring text, jint start, jint end,
687        SkPath* path, jfloat hOffset, jfloat vOffset, jint flags, SkPaint* paint) {
688    const jchar* textArray = env->GetStringChars(text, NULL);
689    renderTextOnPath(renderer, textArray + start, end - start, path,
690            hOffset, vOffset, flags, paint);
691    env->ReleaseStringChars(text, textArray);
692}
693
694static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject clazz,
695        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
696        jint contextIndex, jint contextCount, jfloat x, jfloat y, jint dirFlags,
697        SkPaint* paint) {
698    jchar* textArray = env->GetCharArrayElements(text, NULL);
699    renderTextRun(renderer, textArray + contextIndex, index - contextIndex,
700            count, contextCount, x, y, dirFlags, paint);
701    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
702 }
703
704static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject clazz,
705        OpenGLRenderer* renderer, jstring text, jint start, jint end,
706        jint contextStart, int contextEnd, jfloat x, jfloat y, jint dirFlags,
707        SkPaint* paint) {
708    const jchar* textArray = env->GetStringChars(text, NULL);
709    jint count = end - start;
710    jint contextCount = contextEnd - contextStart;
711    renderTextRun(renderer, textArray + contextStart, start - contextStart,
712            count, contextCount, x, y, dirFlags, paint);
713    env->ReleaseStringChars(text, textArray);
714}
715
716static void renderPosText(OpenGLRenderer* renderer, const jchar* text, int count,
717        const jfloat* positions, jint dirFlags, SkPaint* paint) {
718    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
719            text, 0, count, count, dirFlags);
720    if (value == NULL) {
721        return;
722    }
723    const jchar* glyphs = value->getGlyphs();
724    size_t glyphsCount = value->getGlyphsCount();
725    if (count < int(glyphsCount)) glyphsCount = count;
726    int bytesCount = glyphsCount * sizeof(jchar);
727
728    renderer->drawPosText((const char*) glyphs, bytesCount, glyphsCount, positions, paint);
729}
730
731static void android_view_GLES20Canvas_drawPosTextArray(JNIEnv* env, jobject clazz,
732        OpenGLRenderer* renderer, jcharArray text, jint index, jint count,
733        jfloatArray pos, SkPaint* paint) {
734    jchar* textArray = env->GetCharArrayElements(text, NULL);
735    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
736
737    renderPosText(renderer, textArray + index, count, positions, kBidi_LTR, paint);
738
739    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
740    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
741}
742
743static void android_view_GLES20Canvas_drawPosText(JNIEnv* env, jobject clazz,
744        OpenGLRenderer* renderer, jstring text, jint start, jint end,
745        jfloatArray pos, SkPaint* paint) {
746    const jchar* textArray = env->GetStringChars(text, NULL);
747    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
748
749    renderPosText(renderer, textArray + start, end - start, positions, kBidi_LTR, paint);
750
751    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
752    env->ReleaseStringChars(text, textArray);
753}
754
755// ----------------------------------------------------------------------------
756// Display lists
757// ----------------------------------------------------------------------------
758
759static DisplayList* android_view_GLES20Canvas_getDisplayList(JNIEnv* env,
760        jobject clazz, DisplayListRenderer* renderer, DisplayList* displayList) {
761    return renderer->getDisplayList(displayList);
762}
763
764static OpenGLRenderer* android_view_GLES20Canvas_createDisplayListRenderer(JNIEnv* env,
765        jobject clazz) {
766    return new DisplayListRenderer;
767}
768
769static void android_view_GLES20Canvas_resetDisplayListRenderer(JNIEnv* env,
770        jobject clazz, DisplayListRenderer* renderer) {
771    renderer->reset();
772}
773
774static jint android_view_GLES20Canvas_drawDisplayList(JNIEnv* env,
775        jobject clazz, OpenGLRenderer* renderer, DisplayList* displayList,
776        jobject dirty, jint flags) {
777    android::uirenderer::Rect bounds;
778    status_t status = renderer->drawDisplayList(displayList, bounds, flags);
779    if (status != DrawGlInfo::kStatusDone && dirty != NULL) {
780        env->CallVoidMethod(dirty, gRectClassInfo.set,
781                int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
782    }
783    return status;
784}
785
786static void android_view_GLES20Canvas_outputDisplayList(JNIEnv* env,
787        jobject clazz, OpenGLRenderer* renderer, DisplayList* displayList) {
788    renderer->outputDisplayList(displayList);
789}
790
791// ----------------------------------------------------------------------------
792// Layers
793// ----------------------------------------------------------------------------
794
795static void android_view_GLES20Canvas_interrupt(JNIEnv* env, jobject clazz,
796        OpenGLRenderer* renderer) {
797    renderer->interrupt();
798}
799
800static void android_view_GLES20Canvas_resume(JNIEnv* env, jobject clazz,
801        OpenGLRenderer* renderer) {
802    renderer->resume();
803}
804
805static OpenGLRenderer* android_view_GLES20Canvas_createLayerRenderer(JNIEnv* env,
806        jobject clazz, Layer* layer) {
807    if (layer) {
808        OpenGLRenderer* renderer = new LayerRenderer(layer);
809        renderer->initProperties();
810        return renderer;
811    }
812    return NULL;
813}
814
815static Layer* android_view_GLES20Canvas_createTextureLayer(JNIEnv* env, jobject clazz,
816        jboolean isOpaque, jintArray layerInfo) {
817    Layer* layer = LayerRenderer::createTextureLayer(isOpaque);
818
819    if (layer) {
820        jint* storage = env->GetIntArrayElements(layerInfo, NULL);
821        storage[0] = layer->getTexture();
822        env->ReleaseIntArrayElements(layerInfo, storage, 0);
823    }
824
825    return layer;
826}
827
828static Layer* android_view_GLES20Canvas_createLayer(JNIEnv* env, jobject clazz,
829        jint width, jint height, jboolean isOpaque, jintArray layerInfo) {
830    Layer* layer = LayerRenderer::createLayer(width, height, isOpaque);
831
832    if (layer) {
833        jint* storage = env->GetIntArrayElements(layerInfo, NULL);
834        storage[0] = layer->getWidth();
835        storage[1] = layer->getHeight();
836        env->ReleaseIntArrayElements(layerInfo, storage, 0);
837    }
838
839    return layer;
840}
841
842static bool android_view_GLES20Canvas_resizeLayer(JNIEnv* env, jobject clazz,
843        Layer* layer, jint width, jint height, jintArray layerInfo) {
844    if (LayerRenderer::resizeLayer(layer, width, height)) {
845        jint* storage = env->GetIntArrayElements(layerInfo, NULL);
846        storage[0] = layer->getWidth();
847        storage[1] = layer->getHeight();
848        env->ReleaseIntArrayElements(layerInfo, storage, 0);
849        return true;
850    }
851    return false;
852}
853
854static void android_view_GLES20Canvas_setLayerPaint(JNIEnv* env, jobject clazz,
855        Layer* layer, SkPaint* paint) {
856    if (layer) {
857        layer->setPaint(paint);
858    }
859}
860
861static void android_view_GLES20Canvas_setLayerColorFilter(JNIEnv* env, jobject clazz,
862        Layer* layer, SkiaColorFilter* colorFilter) {
863    if (layer) {
864        layer->setColorFilter(colorFilter);
865    }
866}
867
868static void android_view_GLES20Canvas_setOpaqueLayer(JNIEnv* env, jobject clazz,
869        Layer* layer, jboolean isOpaque) {
870    if (layer) {
871        layer->setBlend(!isOpaque);
872    }
873}
874
875static void android_view_GLES20Canvas_updateTextureLayer(JNIEnv* env, jobject clazz,
876        Layer* layer, jint width, jint height, jboolean isOpaque, jobject surface) {
877    float transform[16];
878    sp<GLConsumer> surfaceTexture(SurfaceTexture_getSurfaceTexture(env, surface));
879
880    if (surfaceTexture->updateTexImage() == NO_ERROR) {
881        surfaceTexture->getTransformMatrix(transform);
882        GLenum renderTarget = surfaceTexture->getCurrentTextureTarget();
883
884        LayerRenderer::updateTextureLayer(layer, width, height, isOpaque, renderTarget, transform);
885    }
886}
887
888static void android_view_GLES20Canvas_updateRenderLayer(JNIEnv* env, jobject clazz,
889        Layer* layer, OpenGLRenderer* renderer, DisplayList* displayList,
890        jint left, jint top, jint right, jint bottom) {
891    layer->updateDeferred(renderer, displayList, left, top, right, bottom);
892}
893
894static void android_view_GLES20Canvas_clearLayerTexture(JNIEnv* env, jobject clazz,
895        Layer* layer) {
896    layer->clearTexture();
897}
898
899static void android_view_GLES20Canvas_setTextureLayerTransform(JNIEnv* env, jobject clazz,
900        Layer* layer, SkMatrix* matrix) {
901    layer->getTransform().load(*matrix);
902}
903
904static void android_view_GLES20Canvas_destroyLayer(JNIEnv* env, jobject clazz, Layer* layer) {
905    LayerRenderer::destroyLayer(layer);
906}
907
908static void android_view_GLES20Canvas_destroyLayerDeferred(JNIEnv* env,
909        jobject clazz, Layer* layer) {
910    LayerRenderer::destroyLayerDeferred(layer);
911}
912
913static void android_view_GLES20Canvas_drawLayer(JNIEnv* env, jobject clazz,
914        OpenGLRenderer* renderer, Layer* layer, jfloat x, jfloat y) {
915    renderer->drawLayer(layer, x, y);
916}
917
918static jboolean android_view_GLES20Canvas_copyLayer(JNIEnv* env, jobject clazz,
919        Layer* layer, SkBitmap* bitmap) {
920    return LayerRenderer::copyLayer(layer, bitmap);
921}
922
923static void android_view_GLES20Canvas_pushLayerUpdate(JNIEnv* env, jobject clazz,
924        OpenGLRenderer* renderer, Layer* layer) {
925    renderer->pushLayerUpdate(layer);
926}
927
928static void android_view_GLES20Canvas_cancelLayerUpdate(JNIEnv* env, jobject clazz,
929        OpenGLRenderer* renderer, Layer* layer) {
930    renderer->cancelLayerUpdate(layer);
931}
932
933static void android_view_GLES20Canvas_clearLayerUpdates(JNIEnv* env, jobject clazz,
934        OpenGLRenderer* renderer) {
935    renderer->clearLayerUpdates();
936}
937
938static void android_view_GLES20Canvas_flushLayerUpdates(JNIEnv* env, jobject clazz,
939        OpenGLRenderer* renderer) {
940    renderer->flushLayerUpdates();
941}
942
943#endif // USE_OPENGL_RENDERER
944
945// ----------------------------------------------------------------------------
946// Common
947// ----------------------------------------------------------------------------
948
949static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) {
950#ifdef USE_OPENGL_RENDERER
951    char prop[PROPERTY_VALUE_MAX];
952    if (property_get("ro.kernel.qemu", prop, NULL) == 0) {
953        // not in the emulator
954        return JNI_TRUE;
955    }
956    // In the emulator this property will be set to 1 when hardware GLES is
957    // enabled, 0 otherwise. On old emulator versions it will be undefined.
958    property_get("ro.kernel.qemu.gles", prop, "0");
959    return atoi(prop) == 1 ? JNI_TRUE : JNI_FALSE;
960#else
961    return JNI_FALSE;
962#endif
963}
964
965// ----------------------------------------------------------------------------
966// Logging
967// ----------------------------------------------------------------------------
968
969static void
970android_app_ActivityThread_dumpGraphics(JNIEnv* env, jobject clazz, jobject javaFileDescriptor) {
971#ifdef USE_OPENGL_RENDERER
972    int fd = jniGetFDFromFileDescriptor(env, javaFileDescriptor);
973    android::uirenderer::DisplayList::outputLogBuffer(fd);
974#endif // USE_OPENGL_RENDERER
975}
976
977// ----------------------------------------------------------------------------
978// JNI Glue
979// ----------------------------------------------------------------------------
980
981const char* const kClassPathName = "android/view/GLES20Canvas";
982
983static JNINativeMethod gMethods[] = {
984    { "nIsAvailable",       "()Z",             (void*) android_view_GLES20Canvas_isAvailable },
985
986#ifdef USE_OPENGL_RENDERER
987    { "nFlushCaches",       "(I)V",            (void*) android_view_GLES20Canvas_flushCaches },
988    { "nInitCaches",        "()Z",             (void*) android_view_GLES20Canvas_initCaches },
989    { "nTerminateCaches",   "()V",             (void*) android_view_GLES20Canvas_terminateCaches },
990
991    { "nInitAtlas",         "(Landroid/view/GraphicBuffer;[II)V",
992            (void*) android_view_GLES20Canvas_initAtlas },
993
994    { "nCreateRenderer",    "()I",             (void*) android_view_GLES20Canvas_createRenderer },
995    { "nDestroyRenderer",   "(I)V",            (void*) android_view_GLES20Canvas_destroyRenderer },
996    { "nSetViewport",       "(III)V",          (void*) android_view_GLES20Canvas_setViewport },
997    { "nPrepare",           "(IZ)I",           (void*) android_view_GLES20Canvas_prepare },
998    { "nPrepareDirty",      "(IIIIIZ)I",       (void*) android_view_GLES20Canvas_prepareDirty },
999    { "nFinish",            "(I)V",            (void*) android_view_GLES20Canvas_finish },
1000    { "nSetName",           "(ILjava/lang/String;)V",
1001            (void*) android_view_GLES20Canvas_setName },
1002
1003    { "nSetCountOverdrawEnabled", "(IZ)V",     (void*) android_view_GLES20Canvas_setCountOverdrawEnabled },
1004    { "nGetOverdraw",             "(I)F",      (void*) android_view_GLES20Canvas_getOverdraw },
1005
1006    { "nGetStencilSize",    "()I",             (void*) android_view_GLES20Canvas_getStencilSize },
1007
1008    { "nCallDrawGLFunction", "(II)I",          (void*) android_view_GLES20Canvas_callDrawGLFunction },
1009    { "nDetachFunctor",      "(II)V",          (void*) android_view_GLES20Canvas_detachFunctor },
1010    { "nAttachFunctor",      "(II)V",          (void*) android_view_GLES20Canvas_attachFunctor },
1011    { "nInvokeFunctors",     "(ILandroid/graphics/Rect;)I",
1012            (void*) android_view_GLES20Canvas_invokeFunctors },
1013
1014    { "nSave",              "(II)I",           (void*) android_view_GLES20Canvas_save },
1015    { "nRestore",           "(I)V",            (void*) android_view_GLES20Canvas_restore },
1016    { "nRestoreToCount",    "(II)V",           (void*) android_view_GLES20Canvas_restoreToCount },
1017    { "nGetSaveCount",      "(I)I",            (void*) android_view_GLES20Canvas_getSaveCount },
1018
1019    { "nSaveLayer",         "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayer },
1020    { "nSaveLayer",         "(III)I",          (void*) android_view_GLES20Canvas_saveLayerClip },
1021    { "nSaveLayerAlpha",    "(IFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayerAlpha },
1022    { "nSaveLayerAlpha",    "(III)I",          (void*) android_view_GLES20Canvas_saveLayerAlphaClip },
1023
1024    { "nQuickReject",       "(IFFFF)Z",        (void*) android_view_GLES20Canvas_quickReject },
1025    { "nClipRect",          "(IFFFFI)Z",       (void*) android_view_GLES20Canvas_clipRectF },
1026    { "nClipRect",          "(IIIIII)Z",       (void*) android_view_GLES20Canvas_clipRect },
1027    { "nClipPath",          "(III)Z",          (void*) android_view_GLES20Canvas_clipPath },
1028    { "nClipRegion",        "(III)Z",          (void*) android_view_GLES20Canvas_clipRegion },
1029
1030    { "nTranslate",         "(IFF)V",          (void*) android_view_GLES20Canvas_translate },
1031    { "nRotate",            "(IF)V",           (void*) android_view_GLES20Canvas_rotate },
1032    { "nScale",             "(IFF)V",          (void*) android_view_GLES20Canvas_scale },
1033    { "nSkew",              "(IFF)V",          (void*) android_view_GLES20Canvas_skew },
1034
1035    { "nSetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_setMatrix },
1036    { "nGetMatrix",         "(II)V",           (void*) android_view_GLES20Canvas_getMatrix },
1037    { "nConcatMatrix",      "(II)V",           (void*) android_view_GLES20Canvas_concatMatrix },
1038
1039    { "nDrawBitmap",        "(II[BFFI)V",      (void*) android_view_GLES20Canvas_drawBitmap },
1040    { "nDrawBitmap",        "(II[BFFFFFFFFI)V",(void*) android_view_GLES20Canvas_drawBitmapRect },
1041    { "nDrawBitmap",        "(II[BII)V",       (void*) android_view_GLES20Canvas_drawBitmapMatrix },
1042    { "nDrawBitmap",        "(I[IIIFFIIZI)V",  (void*) android_view_GLES20Canvas_drawBitmapData },
1043
1044    { "nDrawBitmapMesh",    "(II[BII[FI[III)V",(void*) android_view_GLES20Canvas_drawBitmapMesh },
1045
1046    { "nDrawPatch",         "(II[BIFFFFI)V",   (void*) android_view_GLES20Canvas_drawPatch },
1047
1048    { "nDrawColor",         "(III)V",          (void*) android_view_GLES20Canvas_drawColor },
1049    { "nDrawRect",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawRect },
1050    { "nDrawRects",         "(III)V",          (void*) android_view_GLES20Canvas_drawRegionAsRects },
1051    { "nDrawRects",         "(I[FII)V",        (void*) android_view_GLES20Canvas_drawRects },
1052    { "nDrawRoundRect",     "(IFFFFFFI)V",     (void*) android_view_GLES20Canvas_drawRoundRect },
1053    { "nDrawCircle",        "(IFFFI)V",        (void*) android_view_GLES20Canvas_drawCircle },
1054    { "nDrawOval",          "(IFFFFI)V",       (void*) android_view_GLES20Canvas_drawOval },
1055    { "nDrawArc",           "(IFFFFFFZI)V",    (void*) android_view_GLES20Canvas_drawArc },
1056    { "nDrawPoints",        "(I[FIII)V",       (void*) android_view_GLES20Canvas_drawPoints },
1057
1058    { "nDrawPath",          "(III)V",          (void*) android_view_GLES20Canvas_drawPath },
1059    { "nDrawLines",         "(I[FIII)V",       (void*) android_view_GLES20Canvas_drawLines },
1060
1061    { "nResetModifiers",    "(II)V",           (void*) android_view_GLES20Canvas_resetModifiers },
1062    { "nSetupShader",       "(II)V",           (void*) android_view_GLES20Canvas_setupShader },
1063    { "nSetupColorFilter",  "(II)V",           (void*) android_view_GLES20Canvas_setupColorFilter },
1064    { "nSetupShadow",       "(IFFFI)V",        (void*) android_view_GLES20Canvas_setupShadow },
1065
1066    { "nSetupPaintFilter",  "(III)V",          (void*) android_view_GLES20Canvas_setupPaintFilter },
1067    { "nResetPaintFilter",  "(I)V",            (void*) android_view_GLES20Canvas_resetPaintFilter },
1068
1069    { "nDrawText",          "(I[CIIFFII)V",    (void*) android_view_GLES20Canvas_drawTextArray },
1070    { "nDrawText",          "(ILjava/lang/String;IIFFII)V",
1071            (void*) android_view_GLES20Canvas_drawText },
1072
1073    { "nDrawTextOnPath",    "(I[CIIIFFII)V",   (void*) android_view_GLES20Canvas_drawTextArrayOnPath },
1074    { "nDrawTextOnPath",    "(ILjava/lang/String;IIIFFII)V",
1075            (void*) android_view_GLES20Canvas_drawTextOnPath },
1076
1077    { "nDrawTextRun",       "(I[CIIIIFFII)V",  (void*) android_view_GLES20Canvas_drawTextRunArray },
1078    { "nDrawTextRun",       "(ILjava/lang/String;IIIIFFII)V",
1079            (void*) android_view_GLES20Canvas_drawTextRun },
1080
1081    { "nDrawPosText",       "(I[CII[FI)V",     (void*) android_view_GLES20Canvas_drawPosTextArray },
1082    { "nDrawPosText",       "(ILjava/lang/String;II[FI)V",
1083            (void*) android_view_GLES20Canvas_drawPosText },
1084
1085    { "nGetClipBounds",     "(ILandroid/graphics/Rect;)Z",
1086            (void*) android_view_GLES20Canvas_getClipBounds },
1087
1088    { "nGetDisplayList",         "(II)I",      (void*) android_view_GLES20Canvas_getDisplayList },
1089    { "nOutputDisplayList",      "(II)V",      (void*) android_view_GLES20Canvas_outputDisplayList },
1090    { "nDrawDisplayList",        "(IILandroid/graphics/Rect;I)I",
1091            (void*) android_view_GLES20Canvas_drawDisplayList },
1092
1093    { "nCreateDisplayListRenderer", "()I",     (void*) android_view_GLES20Canvas_createDisplayListRenderer },
1094    { "nResetDisplayListRenderer",  "(I)V",    (void*) android_view_GLES20Canvas_resetDisplayListRenderer },
1095
1096    { "nInterrupt",              "(I)V",       (void*) android_view_GLES20Canvas_interrupt },
1097    { "nResume",                 "(I)V",       (void*) android_view_GLES20Canvas_resume },
1098
1099    { "nCreateLayerRenderer",    "(I)I",       (void*) android_view_GLES20Canvas_createLayerRenderer },
1100    { "nCreateLayer",            "(IIZ[I)I",   (void*) android_view_GLES20Canvas_createLayer },
1101    { "nResizeLayer",            "(III[I)Z" ,  (void*) android_view_GLES20Canvas_resizeLayer },
1102    { "nSetLayerPaint",          "(II)V",      (void*) android_view_GLES20Canvas_setLayerPaint },
1103    { "nSetLayerColorFilter",    "(II)V",      (void*) android_view_GLES20Canvas_setLayerColorFilter },
1104    { "nSetOpaqueLayer",         "(IZ)V",      (void*) android_view_GLES20Canvas_setOpaqueLayer },
1105    { "nCreateTextureLayer",     "(Z[I)I",     (void*) android_view_GLES20Canvas_createTextureLayer },
1106    { "nUpdateTextureLayer",     "(IIIZLandroid/graphics/SurfaceTexture;)V",
1107            (void*) android_view_GLES20Canvas_updateTextureLayer },
1108    { "nUpdateRenderLayer",      "(IIIIIII)V", (void*) android_view_GLES20Canvas_updateRenderLayer },
1109    { "nClearLayerTexture",      "(I)V",       (void*) android_view_GLES20Canvas_clearLayerTexture },
1110    { "nDestroyLayer",           "(I)V",       (void*) android_view_GLES20Canvas_destroyLayer },
1111    { "nDestroyLayerDeferred",   "(I)V",       (void*) android_view_GLES20Canvas_destroyLayerDeferred },
1112    { "nDrawLayer",              "(IIFF)V",    (void*) android_view_GLES20Canvas_drawLayer },
1113    { "nCopyLayer",              "(II)Z",      (void*) android_view_GLES20Canvas_copyLayer },
1114    { "nClearLayerUpdates",      "(I)V",       (void*) android_view_GLES20Canvas_clearLayerUpdates },
1115    { "nFlushLayerUpdates",      "(I)V",       (void*) android_view_GLES20Canvas_flushLayerUpdates },
1116    { "nPushLayerUpdate",        "(II)V",      (void*) android_view_GLES20Canvas_pushLayerUpdate },
1117    { "nCancelLayerUpdate",      "(II)V",      (void*) android_view_GLES20Canvas_cancelLayerUpdate },
1118
1119    { "nSetTextureLayerTransform", "(II)V",    (void*) android_view_GLES20Canvas_setTextureLayerTransform },
1120
1121    { "nGetMaximumTextureWidth",  "()I",       (void*) android_view_GLES20Canvas_getMaxTextureWidth },
1122    { "nGetMaximumTextureHeight", "()I",       (void*) android_view_GLES20Canvas_getMaxTextureHeight },
1123
1124#endif
1125};
1126
1127static JNINativeMethod gActivityThreadMethods[] = {
1128    { "dumpGraphicsInfo",        "(Ljava/io/FileDescriptor;)V",
1129                                               (void*) android_app_ActivityThread_dumpGraphics }
1130};
1131
1132
1133#ifdef USE_OPENGL_RENDERER
1134    #define FIND_CLASS(var, className) \
1135            var = env->FindClass(className); \
1136            LOG_FATAL_IF(! var, "Unable to find class " className);
1137
1138    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
1139            var = env->GetMethodID(clazz, methodName, methodDescriptor); \
1140            LOG_FATAL_IF(! var, "Unable to find method " methodName);
1141#else
1142    #define FIND_CLASS(var, className)
1143    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor)
1144#endif
1145
1146int register_android_view_GLES20Canvas(JNIEnv* env) {
1147    jclass clazz;
1148    FIND_CLASS(clazz, "android/graphics/Rect");
1149    GET_METHOD_ID(gRectClassInfo.set, clazz, "set", "(IIII)V");
1150
1151    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
1152}
1153
1154const char* const kActivityThreadPathName = "android/app/ActivityThread";
1155
1156int register_android_app_ActivityThread(JNIEnv* env) {
1157    return AndroidRuntime::registerNativeMethods(env, kActivityThreadPathName,
1158            gActivityThreadMethods, NELEM(gActivityThreadMethods));
1159}
1160
1161};
1162