android_view_GLES20Canvas.cpp revision 832b151465ed81c43e59891d5eebe62128b21fbb 
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 <DisplayListRenderer.h>
46#include <LayerRenderer.h>
47#include <OpenGLRenderer.h>
48#include <SkiaShader.h>
49#include <Stencil.h>
50#include <Rect.h>
51#include <RenderNode.h>
52#include <CanvasProperty.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
85// ----------------------------------------------------------------------------
86
87static struct {
88    jmethodID set;
89} gRectClassInfo;
90
91// ----------------------------------------------------------------------------
92// Caching
93// ----------------------------------------------------------------------------
94
95static void android_view_GLES20Canvas_flushCaches(JNIEnv* env, jobject clazz,
96        jint mode) {
97    if (Caches::hasInstance()) {
98        Caches::getInstance().flush(static_cast<Caches::FlushMode>(mode));
99    }
100}
101
102static jboolean android_view_GLES20Canvas_initCaches(JNIEnv* env, jobject clazz) {
103    if (Caches::hasInstance()) {
104        return Caches::getInstance().init() ? JNI_TRUE : JNI_FALSE;
105    }
106    return JNI_FALSE;
107}
108
109static void android_view_GLES20Canvas_terminateCaches(JNIEnv* env, jobject clazz) {
110    if (Caches::hasInstance()) {
111        Caches::getInstance().terminate();
112    }
113}
114
115// ----------------------------------------------------------------------------
116// Caching
117// ----------------------------------------------------------------------------
118
119static void android_view_GLES20Canvas_initAtlas(JNIEnv* env, jobject clazz,
120        jobject graphicBuffer, jlongArray atlasMapArray, jint count) {
121
122    sp<GraphicBuffer> buffer = graphicBufferForJavaObject(env, graphicBuffer);
123    jlong* jAtlasMap = env->GetLongArrayElements(atlasMapArray, NULL);
124    Caches::getInstance().assetAtlas.init(buffer, jAtlasMap, count);
125    env->ReleaseLongArrayElements(atlasMapArray, jAtlasMap, 0);
126}
127
128// ----------------------------------------------------------------------------
129// Constructors
130// ----------------------------------------------------------------------------
131
132static jlong android_view_GLES20Canvas_createRenderer(JNIEnv* env, jobject clazz) {
133    RENDERER_LOGD("Create OpenGLRenderer");
134    OpenGLRenderer* renderer = new OpenGLRenderer();
135    renderer->initProperties();
136    return reinterpret_cast<jlong>(renderer);
137}
138
139static void android_view_GLES20Canvas_destroyRenderer(JNIEnv* env, jobject clazz,
140        jlong rendererPtr) {
141    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
142    RENDERER_LOGD("Destroy OpenGLRenderer");
143    delete renderer;
144}
145
146// ----------------------------------------------------------------------------
147// Setup
148// ----------------------------------------------------------------------------
149
150static void android_view_GLES20Canvas_setViewport(JNIEnv* env, jobject clazz,
151        jlong rendererPtr, jint width, jint height) {
152    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
153    renderer->setViewport(width, height);
154}
155
156static int android_view_GLES20Canvas_prepare(JNIEnv* env, jobject clazz,
157        jlong rendererPtr, jboolean opaque) {
158    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
159    return renderer->prepare(opaque);
160}
161
162static int android_view_GLES20Canvas_prepareDirty(JNIEnv* env, jobject clazz,
163        jlong rendererPtr, jint left, jint top, jint right, jint bottom,
164        jboolean opaque) {
165    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
166    return renderer->prepareDirty(left, top, right, bottom, opaque);
167}
168
169static void android_view_GLES20Canvas_finish(JNIEnv* env, jobject clazz,
170        jlong rendererPtr) {
171    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
172    renderer->finish();
173}
174
175static jint android_view_GLES20Canvas_getStencilSize(JNIEnv* env, jobject clazz) {
176    return Stencil::getStencilSize();
177}
178
179static void android_view_GLES20Canvas_setProperty(JNIEnv* env,
180        jobject clazz, jstring name, jstring value) {
181    if (!Caches::hasInstance()) {
182        ALOGW("can't set property, no Caches instance");
183        return;
184    }
185
186    if (name == NULL || value == NULL) {
187        ALOGW("can't set prop, null passed");
188    }
189
190    const char* nameCharArray = env->GetStringUTFChars(name, NULL);
191    const char* valueCharArray = env->GetStringUTFChars(value, NULL);
192    Caches::getInstance().setTempProperty(nameCharArray, valueCharArray);
193    env->ReleaseStringUTFChars(name, nameCharArray);
194    env->ReleaseStringUTFChars(name, valueCharArray);
195}
196
197// ----------------------------------------------------------------------------
198// Functor
199// ----------------------------------------------------------------------------
200
201static jint android_view_GLES20Canvas_callDrawGLFunction(JNIEnv* env, jobject clazz,
202        jlong rendererPtr, jlong functorPtr) {
203    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
204    Functor* functor = reinterpret_cast<Functor*>(functorPtr);
205    android::uirenderer::Rect dirty;
206    return renderer->callDrawGLFunction(functor, dirty);
207}
208
209// ----------------------------------------------------------------------------
210// Misc
211// ----------------------------------------------------------------------------
212
213static jint android_view_GLES20Canvas_getMaxTextureWidth(JNIEnv* env, jobject clazz) {
214    return Caches::getInstance().maxTextureSize;
215}
216
217static jint android_view_GLES20Canvas_getMaxTextureHeight(JNIEnv* env, jobject clazz) {
218    return Caches::getInstance().maxTextureSize;
219}
220
221// ----------------------------------------------------------------------------
222// State
223// ----------------------------------------------------------------------------
224
225static jint android_view_GLES20Canvas_save(JNIEnv* env, jobject clazz, jlong rendererPtr,
226        jint flags) {
227    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
228    return renderer->save(flags);
229}
230
231static jint android_view_GLES20Canvas_getSaveCount(JNIEnv* env, jobject clazz,
232        jlong rendererPtr) {
233    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
234    return renderer->getSaveCount();
235}
236
237static void android_view_GLES20Canvas_restore(JNIEnv* env, jobject clazz,
238        jlong rendererPtr) {
239    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
240    renderer->restore();
241}
242
243static void android_view_GLES20Canvas_restoreToCount(JNIEnv* env, jobject clazz,
244        jlong rendererPtr, jint saveCount) {
245    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
246    renderer->restoreToCount(saveCount);
247}
248
249// ----------------------------------------------------------------------------
250// Layers
251// ----------------------------------------------------------------------------
252
253static jint android_view_GLES20Canvas_saveLayer(JNIEnv* env, jobject clazz,
254        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
255        jlong paintPtr, jint saveFlags) {
256    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
257    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
258    return renderer->saveLayer(left, top, right, bottom, paint, saveFlags);
259}
260
261static jint android_view_GLES20Canvas_saveLayerClip(JNIEnv* env, jobject clazz,
262        jlong rendererPtr, jlong paintPtr, jint saveFlags) {
263    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
264    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
265    const android::uirenderer::Rect& bounds(renderer->getLocalClipBounds());
266    return renderer->saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom,
267            paint, saveFlags);
268}
269
270static jint android_view_GLES20Canvas_saveLayerAlpha(JNIEnv* env, jobject clazz,
271        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
272        jint alpha, jint saveFlags) {
273    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
274    return renderer->saveLayerAlpha(left, top, right, bottom, alpha, saveFlags);
275}
276
277static jint android_view_GLES20Canvas_saveLayerAlphaClip(JNIEnv* env, jobject clazz,
278        jlong rendererPtr, jint alpha, jint saveFlags) {
279    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
280    const android::uirenderer::Rect& bounds(renderer->getLocalClipBounds());
281    return renderer->saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom,
282            alpha, saveFlags);
283}
284
285// ----------------------------------------------------------------------------
286// Clipping
287// ----------------------------------------------------------------------------
288
289static jboolean android_view_GLES20Canvas_quickReject(JNIEnv* env, jobject clazz,
290        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom) {
291    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
292    const bool result = renderer->quickRejectConservative(left, top, right, bottom);
293    return result ? JNI_TRUE : JNI_FALSE;
294}
295
296static jboolean android_view_GLES20Canvas_clipRectF(JNIEnv* env, jobject clazz,
297        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
298        jint op) {
299    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
300    const bool result = renderer->clipRect(left, top, right, bottom,
301                                           static_cast<SkRegion::Op>(op));
302    return result ? JNI_TRUE : JNI_FALSE;
303}
304
305static jboolean android_view_GLES20Canvas_clipRect(JNIEnv* env, jobject clazz,
306        jlong rendererPtr, jint left, jint top, jint right, jint bottom,
307        jint op) {
308    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
309    const bool result = renderer->clipRect(float(left), float(top), float(right),
310                                           float(bottom),
311                                           static_cast<SkRegion::Op>(op));
312    return result ? JNI_TRUE : JNI_FALSE;
313}
314
315static jboolean android_view_GLES20Canvas_clipPath(JNIEnv* env, jobject clazz,
316        jlong rendererPtr, jlong pathPtr, jint op) {
317    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
318    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
319    const bool result = renderer->clipPath(path, static_cast<SkRegion::Op>(op));
320    return result ? JNI_TRUE : JNI_FALSE;
321}
322
323static jboolean android_view_GLES20Canvas_clipRegion(JNIEnv* env, jobject clazz,
324        jlong rendererPtr, jlong regionPtr, jint op) {
325    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
326    SkRegion* region = reinterpret_cast<SkRegion*>(regionPtr);
327    const bool result = renderer->clipRegion(region, static_cast<SkRegion::Op>(op));
328    return result ? JNI_TRUE : JNI_FALSE;
329}
330
331static jboolean android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject clazz,
332        jlong rendererPtr, jobject rect) {
333    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
334    const android::uirenderer::Rect& bounds(renderer->getLocalClipBounds());
335
336    env->CallVoidMethod(rect, gRectClassInfo.set,
337            int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
338
339    return !bounds.isEmpty() ? JNI_TRUE : JNI_FALSE;
340}
341
342// ----------------------------------------------------------------------------
343// Transforms
344// ----------------------------------------------------------------------------
345
346static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject clazz,
347        jlong rendererPtr, jfloat dx, jfloat dy) {
348    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
349    renderer->translate(dx, dy);
350}
351
352static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject clazz,
353        jlong rendererPtr, jfloat degrees) {
354    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
355    renderer->rotate(degrees);
356}
357
358static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject clazz,
359        jlong rendererPtr, jfloat sx, jfloat sy) {
360    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
361    renderer->scale(sx, sy);
362}
363
364static void android_view_GLES20Canvas_skew(JNIEnv* env, jobject clazz,
365        jlong rendererPtr, jfloat sx, jfloat sy) {
366    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
367    renderer->skew(sx, sy);
368}
369
370static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject clazz,
371        jlong rendererPtr, jlong matrixPtr) {
372    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
373    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
374    renderer->setMatrix(matrix);
375}
376
377static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject clazz,
378        jlong rendererPtr, jlong matrixPtr) {
379    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
380    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
381    renderer->getMatrix(matrix);
382}
383
384static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject clazz,
385        jlong rendererPtr, jlong matrixPtr) {
386    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
387    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
388    renderer->concatMatrix(matrix);
389}
390
391// ----------------------------------------------------------------------------
392// Drawing
393// ----------------------------------------------------------------------------
394
395static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject clazz,
396        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
397        jfloat left, jfloat top, jlong paintPtr) {
398    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
399    // This object allows the renderer to allocate a global JNI ref to the buffer object.
400    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
401
402    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
403    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
404    renderer->drawBitmap(bitmap, left, top, paint);
405}
406
407static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject clazz,
408        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
409        float srcLeft, float srcTop, float srcRight, float srcBottom,
410        float dstLeft, float dstTop, float dstRight, float dstBottom, jlong paintPtr) {
411    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
412    // This object allows the renderer to allocate a global JNI ref to the buffer object.
413    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
414
415    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
416    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
417    renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom,
418            dstLeft, dstTop, dstRight, dstBottom, paint);
419}
420
421static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject clazz,
422        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
423        jlong matrixPtr, jlong paintPtr) {
424    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
425    // This object allows the renderer to allocate a global JNI ref to the buffer object.
426    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
427
428    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
429    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
430    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
431    renderer->drawBitmap(bitmap, matrix, paint);
432}
433
434static void android_view_GLES20Canvas_drawBitmapData(JNIEnv* env, jobject clazz,
435        jlong rendererPtr, jintArray colors, jint offset, jint stride,
436        jfloat left, jfloat top, jint width, jint height, jboolean hasAlpha, jlong paintPtr) {
437    SkBitmap* bitmap = new SkBitmap;
438    bitmap->setConfig(hasAlpha ? SkBitmap::kARGB_8888_Config : SkBitmap::kRGB_565_Config,
439            width, height);
440
441    if (!bitmap->allocPixels()) {
442        delete bitmap;
443        return;
444    }
445
446    if (!GraphicsJNI::SetPixels(env, colors, offset, stride, 0, 0, width, height, *bitmap, true)) {
447        delete bitmap;
448        return;
449    }
450
451    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
452    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
453    renderer->drawBitmapData(bitmap, left, top, paint);
454
455    // If the renderer is a deferred renderer it will own the bitmap
456    if (!renderer->isRecording()) {
457        delete bitmap;
458    }
459}
460
461static void android_view_GLES20Canvas_drawBitmapMesh(JNIEnv* env, jobject clazz,
462        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
463        jint meshWidth, jint meshHeight, jfloatArray vertices, jint offset, jintArray colors,
464        jint colorOffset, jlong paintPtr) {
465    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
466    // This object allows the renderer to allocate a global JNI ref to the buffer object.
467    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
468
469    jfloat* verticesArray = vertices ? env->GetFloatArrayElements(vertices, NULL) + offset : NULL;
470    jint* colorsArray = colors ? env->GetIntArrayElements(colors, NULL) + colorOffset : NULL;
471
472    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
473    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
474    renderer->drawBitmapMesh(bitmap, meshWidth, meshHeight, verticesArray, colorsArray, paint);
475
476    if (vertices) env->ReleaseFloatArrayElements(vertices, verticesArray, 0);
477    if (colors) env->ReleaseIntArrayElements(colors, colorsArray, 0);
478}
479
480static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject clazz,
481        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer, jlong patchPtr,
482        float left, float top, float right, float bottom, jlong paintPtr) {
483    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
484    // This object allows the renderer to allocate a global JNI ref to the buffer object.
485    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
486
487    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
488    Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(patchPtr);
489    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
490    renderer->drawPatch(bitmap, patch, left, top, right, bottom, paint);
491}
492
493static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject clazz,
494        jlong rendererPtr, jint color, jint mode) {
495    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
496    renderer->drawColor(color, static_cast<SkXfermode::Mode>(mode));
497}
498
499static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject clazz,
500        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
501        jlong paintPtr) {
502    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
503    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
504    renderer->drawRect(left, top, right, bottom, paint);
505}
506
507static void android_view_GLES20Canvas_drawRoundRect(JNIEnv* env, jobject clazz,
508        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
509        jfloat rx, jfloat ry, jlong paintPtr) {
510    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
511    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
512    renderer->drawRoundRect(left, top, right, bottom, rx, ry, paint);
513}
514
515static void android_view_GLES20Canvas_drawCircle(JNIEnv* env, jobject clazz,
516        jlong rendererPtr, jfloat x, jfloat y, jfloat radius, jlong paintPtr) {
517    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
518    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
519    renderer->drawCircle(x, y, radius, paint);
520}
521
522static void android_view_GLES20Canvas_drawCircleProps(JNIEnv* env, jobject clazz,
523        jlong rendererPtr, jlong xPropPtr, jlong yPropPtr, jlong radiusPropPtr, jlong paintPropPtr) {
524    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
525    CanvasPropertyPrimitive* xProp = reinterpret_cast<CanvasPropertyPrimitive*>(xPropPtr);
526    CanvasPropertyPrimitive* yProp = reinterpret_cast<CanvasPropertyPrimitive*>(yPropPtr);
527    CanvasPropertyPrimitive* radiusProp = reinterpret_cast<CanvasPropertyPrimitive*>(radiusPropPtr);
528    CanvasPropertyPaint* paintProp = reinterpret_cast<CanvasPropertyPaint*>(paintPropPtr);
529    renderer->drawCircle(xProp, yProp, radiusProp, paintProp);
530}
531
532static void android_view_GLES20Canvas_drawOval(JNIEnv* env, jobject clazz,
533        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
534        jlong paintPtr) {
535    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
536    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
537    renderer->drawOval(left, top, right, bottom, paint);
538}
539
540static void android_view_GLES20Canvas_drawArc(JNIEnv* env, jobject clazz,
541        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
542        jfloat startAngle, jfloat sweepAngle, jboolean useCenter, jlong paintPtr) {
543    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
544    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
545    renderer->drawArc(left, top, right, bottom, startAngle, sweepAngle, useCenter, paint);
546}
547
548static void android_view_GLES20Canvas_drawRegionAsRects(JNIEnv* env, jobject clazz,
549        jlong rendererPtr, jlong regionPtr, jlong paintPtr) {
550    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
551    SkRegion* region = reinterpret_cast<SkRegion*>(regionPtr);
552    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
553    if (paint->getStyle() != SkPaint::kFill_Style ||
554            (paint->isAntiAlias() && !renderer->isCurrentTransformSimple())) {
555        SkRegion::Iterator it(*region);
556        while (!it.done()) {
557            const SkIRect& r = it.rect();
558            renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint);
559            it.next();
560        }
561    } else {
562        int count = 0;
563        Vector<float> rects;
564        SkRegion::Iterator it(*region);
565        while (!it.done()) {
566            const SkIRect& r = it.rect();
567            rects.push(r.fLeft);
568            rects.push(r.fTop);
569            rects.push(r.fRight);
570            rects.push(r.fBottom);
571            count += 4;
572            it.next();
573        }
574        renderer->drawRects(rects.array(), count, paint);
575    }
576}
577
578static void android_view_GLES20Canvas_drawRects(JNIEnv* env, jobject clazz,
579        jlong rendererPtr, jfloatArray rects, jint count, jlong paintPtr) {
580    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
581    jfloat* storage = env->GetFloatArrayElements(rects, NULL);
582    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
583    renderer->drawRects(storage, count, paint);
584    env->ReleaseFloatArrayElements(rects, storage, 0);
585}
586
587static void android_view_GLES20Canvas_drawPoints(JNIEnv* env, jobject clazz,
588        jlong rendererPtr, jfloatArray points, jint offset, jint count, jlong paintPtr) {
589    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
590    jfloat* storage = env->GetFloatArrayElements(points, NULL);
591    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
592    renderer->drawPoints(storage + offset, count, paint);
593    env->ReleaseFloatArrayElements(points, storage, 0);
594}
595
596static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject clazz,
597        jlong rendererPtr, jlong pathPtr, jlong paintPtr) {
598    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
599    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
600    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
601    renderer->drawPath(path, paint);
602}
603
604static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject clazz,
605        jlong rendererPtr, jfloatArray points, jint offset, jint count, jlong paintPtr) {
606    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
607    jfloat* storage = env->GetFloatArrayElements(points, NULL);
608    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
609    renderer->drawLines(storage + offset, count, paint);
610    env->ReleaseFloatArrayElements(points, storage, 0);
611}
612
613// ----------------------------------------------------------------------------
614// Shaders and color filters
615// ----------------------------------------------------------------------------
616
617static void android_view_GLES20Canvas_resetModifiers(JNIEnv* env, jobject clazz,
618        jlong rendererPtr, jint modifiers) {
619    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
620    if (modifiers & MODIFIER_SHADOW) renderer->resetShadow();
621    if (modifiers & MODIFIER_SHADER) renderer->resetShader();
622}
623
624static void android_view_GLES20Canvas_setupShader(JNIEnv* env, jobject clazz,
625        jlong rendererPtr, jlong shaderPtr) {
626    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
627    SkiaShader* shader = reinterpret_cast<SkiaShader*>(shaderPtr);
628    renderer->setupShader(shader);
629}
630
631
632static void android_view_GLES20Canvas_setupShadow(JNIEnv* env, jobject clazz,
633        jlong rendererPtr, jfloat radius, jfloat dx, jfloat dy, jint color) {
634    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
635    renderer->setupShadow(radius, dx, dy, color);
636}
637
638// ----------------------------------------------------------------------------
639// Draw filters
640// ----------------------------------------------------------------------------
641
642static void android_view_GLES20Canvas_setupPaintFilter(JNIEnv* env, jobject clazz,
643        jlong rendererPtr, jint clearBits, jint setBits) {
644    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
645    renderer->setupPaintFilter(clearBits, setBits);
646}
647
648static void android_view_GLES20Canvas_resetPaintFilter(JNIEnv* env, jobject clazz,
649        jlong rendererPtr) {
650    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
651    renderer->resetPaintFilter();
652}
653
654// ----------------------------------------------------------------------------
655// Text
656// ----------------------------------------------------------------------------
657
658static float xOffsetForTextAlign(SkPaint* paint, float totalAdvance) {
659    switch (paint->getTextAlign()) {
660        case SkPaint::kCenter_Align:
661            return -totalAdvance / 2.0f;
662            break;
663        case SkPaint::kRight_Align:
664            return -totalAdvance;
665            break;
666        default:
667            break;
668    }
669    return 0;
670}
671
672static void renderText(OpenGLRenderer* renderer, const jchar* text, int count,
673        jfloat x, jfloat y, int flags, SkPaint* paint) {
674    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
675            text, 0, count, count, flags);
676    if (value == NULL) {
677        return;
678    }
679    const jchar* glyphs = value->getGlyphs();
680    size_t glyphsCount = value->getGlyphsCount();
681    jfloat totalAdvance = value->getTotalAdvance();
682    x += xOffsetForTextAlign(paint, totalAdvance);
683    const float* positions = value->getPos();
684    int bytesCount = glyphsCount * sizeof(jchar);
685    const SkRect& r = value->getBounds();
686    android::uirenderer::Rect bounds(r.fLeft, r.fTop, r.fRight, r.fBottom);
687    bounds.translate(x, y);
688
689    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount,
690            x, y, positions, paint, totalAdvance, bounds);
691}
692
693static void renderTextOnPath(OpenGLRenderer* renderer, const jchar* text, int count,
694        SkPath* path, jfloat hOffset, jfloat vOffset, int flags, SkPaint* paint) {
695    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
696            text, 0, count, count, flags);
697    if (value == NULL) {
698        return;
699    }
700    const jchar* glyphs = value->getGlyphs();
701    size_t glyphsCount = value->getGlyphsCount();
702    int bytesCount = glyphsCount * sizeof(jchar);
703    renderer->drawTextOnPath((const char*) glyphs, bytesCount, glyphsCount, path,
704            hOffset, vOffset, paint);
705}
706
707static void renderTextRun(OpenGLRenderer* renderer, const jchar* text,
708        jint start, jint count, jint contextCount, jfloat x, jfloat y,
709        int flags, SkPaint* paint) {
710    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
711            text, start, count, contextCount, flags);
712    if (value == NULL) {
713        return;
714    }
715    const jchar* glyphs = value->getGlyphs();
716    size_t glyphsCount = value->getGlyphsCount();
717    jfloat totalAdvance = value->getTotalAdvance();
718    x += xOffsetForTextAlign(paint, totalAdvance);
719    const float* positions = value->getPos();
720    int bytesCount = glyphsCount * sizeof(jchar);
721    const SkRect& r = value->getBounds();
722    android::uirenderer::Rect bounds(r.fLeft, r.fTop, r.fRight, r.fBottom);
723    bounds.translate(x, y);
724
725    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount,
726            x, y, positions, paint, totalAdvance, bounds);
727}
728
729static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject clazz,
730        jlong rendererPtr, jcharArray text, jint index, jint count,
731        jfloat x, jfloat y, jint flags, jlong paintPtr) {
732    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
733    jchar* textArray = env->GetCharArrayElements(text, NULL);
734    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
735
736    renderText(renderer, textArray + index, count, x, y, flags, paint);
737    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
738}
739
740static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject clazz,
741        jlong rendererPtr, jstring text, jint start, jint end,
742        jfloat x, jfloat y, jint flags, jlong paintPtr) {
743    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
744    const jchar* textArray = env->GetStringChars(text, NULL);
745    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
746
747    renderText(renderer, textArray + start, end - start, x, y, flags, paint);
748    env->ReleaseStringChars(text, textArray);
749}
750
751static void android_view_GLES20Canvas_drawTextArrayOnPath(JNIEnv* env, jobject clazz,
752        jlong rendererPtr, jcharArray text, jint index, jint count,
753        jlong pathPtr, jfloat hOffset, jfloat vOffset, jint flags, jlong paintPtr) {
754    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
755    jchar* textArray = env->GetCharArrayElements(text, NULL);
756    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
757    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
758
759    renderTextOnPath(renderer, textArray + index, count, path,
760            hOffset, vOffset, flags, paint);
761    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
762}
763
764static void android_view_GLES20Canvas_drawTextOnPath(JNIEnv* env, jobject clazz,
765        jlong rendererPtr, jstring text, jint start, jint end,
766        jlong pathPtr, jfloat hOffset, jfloat vOffset, jint flags, jlong paintPtr) {
767    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
768    const jchar* textArray = env->GetStringChars(text, NULL);
769    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
770    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
771
772    renderTextOnPath(renderer, textArray + start, end - start, path,
773            hOffset, vOffset, flags, paint);
774    env->ReleaseStringChars(text, textArray);
775}
776
777static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject clazz,
778        jlong rendererPtr, jcharArray text, jint index, jint count,
779        jint contextIndex, jint contextCount, jfloat x, jfloat y, jint dirFlags,
780        jlong paintPtr) {
781    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
782    jchar* textArray = env->GetCharArrayElements(text, NULL);
783    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
784
785    renderTextRun(renderer, textArray + contextIndex, index - contextIndex,
786            count, contextCount, x, y, dirFlags, paint);
787    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
788 }
789
790static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject clazz,
791        jlong rendererPtr, jstring text, jint start, jint end,
792        jint contextStart, int contextEnd, jfloat x, jfloat y, jint dirFlags,
793        jlong paintPtr) {
794    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
795    const jchar* textArray = env->GetStringChars(text, NULL);
796    jint count = end - start;
797    jint contextCount = contextEnd - contextStart;
798    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
799
800    renderTextRun(renderer, textArray + contextStart, start - contextStart,
801            count, contextCount, x, y, dirFlags, paint);
802    env->ReleaseStringChars(text, textArray);
803}
804
805static void renderPosText(OpenGLRenderer* renderer, const jchar* text, int count,
806        const jfloat* positions, jint dirFlags, SkPaint* paint) {
807    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
808            text, 0, count, count, dirFlags);
809    if (value == NULL) {
810        return;
811    }
812    const jchar* glyphs = value->getGlyphs();
813    size_t glyphsCount = value->getGlyphsCount();
814    if (count < int(glyphsCount)) glyphsCount = count;
815    int bytesCount = glyphsCount * sizeof(jchar);
816
817    renderer->drawPosText((const char*) glyphs, bytesCount, glyphsCount, positions, paint);
818}
819
820static void android_view_GLES20Canvas_drawPosTextArray(JNIEnv* env, jobject clazz,
821        jlong rendererPtr, jcharArray text, jint index, jint count,
822        jfloatArray pos, jlong paintPtr) {
823    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
824    jchar* textArray = env->GetCharArrayElements(text, NULL);
825    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
826    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
827
828    renderPosText(renderer, textArray + index, count, positions, kBidi_LTR, paint);
829
830    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
831    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
832}
833
834static void android_view_GLES20Canvas_drawPosText(JNIEnv* env, jobject clazz,
835        jlong rendererPtr, jstring text, jint start, jint end,
836        jfloatArray pos, jlong paintPtr) {
837    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
838    const jchar* textArray = env->GetStringChars(text, NULL);
839    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
840    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
841
842    renderPosText(renderer, textArray + start, end - start, positions, kBidi_LTR, paint);
843
844    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
845    env->ReleaseStringChars(text, textArray);
846}
847
848// ----------------------------------------------------------------------------
849// Display lists
850// ----------------------------------------------------------------------------
851
852static jlong android_view_GLES20Canvas_finishRecording(JNIEnv* env,
853        jobject clazz, jlong rendererPtr) {
854    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
855    return reinterpret_cast<jlong>(renderer->finishRecording());
856}
857
858static jlong android_view_GLES20Canvas_createDisplayListRenderer(JNIEnv* env, jobject clazz) {
859    return reinterpret_cast<jlong>(new DisplayListRenderer);
860}
861
862static jint android_view_GLES20Canvas_drawDisplayList(JNIEnv* env,
863        jobject clazz, jlong rendererPtr, jlong displayListPtr,
864        jobject dirty, jint flags) {
865    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
866    RenderNode* displayList = reinterpret_cast<RenderNode*>(displayListPtr);
867    android::uirenderer::Rect bounds;
868    status_t status = renderer->drawDisplayList(displayList, bounds, flags);
869    if (status != DrawGlInfo::kStatusDone && dirty != NULL) {
870        env->CallVoidMethod(dirty, gRectClassInfo.set,
871                int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
872    }
873    return status;
874}
875
876// ----------------------------------------------------------------------------
877// Layers
878// ----------------------------------------------------------------------------
879
880static void android_view_GLES20Canvas_drawLayer(JNIEnv* env, jobject clazz,
881        jlong rendererPtr, jlong layerPtr, jfloat x, jfloat y) {
882    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
883    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
884    renderer->drawLayer(layer, x, y);
885}
886
887static jboolean android_view_GLES20Canvas_copyLayer(JNIEnv* env, jobject clazz,
888        jlong layerPtr, jlong bitmapPtr) {
889    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
890    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
891    return LayerRenderer::copyLayer(layer, bitmap);
892}
893
894static void android_view_GLES20Canvas_pushLayerUpdate(JNIEnv* env, jobject clazz,
895        jlong rendererPtr, jlong layerPtr) {
896    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
897    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
898    renderer->pushLayerUpdate(layer);
899}
900
901static void android_view_GLES20Canvas_cancelLayerUpdate(JNIEnv* env, jobject clazz,
902        jlong rendererPtr, jlong layerPtr) {
903    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
904    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
905    renderer->cancelLayerUpdate(layer);
906}
907
908static void android_view_GLES20Canvas_clearLayerUpdates(JNIEnv* env, jobject clazz,
909        jlong rendererPtr) {
910    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
911    renderer->clearLayerUpdates();
912}
913
914static void android_view_GLES20Canvas_flushLayerUpdates(JNIEnv* env, jobject clazz,
915        jlong rendererPtr) {
916    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
917    renderer->flushLayerUpdates();
918}
919
920#endif // USE_OPENGL_RENDERER
921
922// ----------------------------------------------------------------------------
923// Common
924// ----------------------------------------------------------------------------
925
926static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) {
927#ifdef USE_OPENGL_RENDERER
928    char prop[PROPERTY_VALUE_MAX];
929    if (property_get("ro.kernel.qemu", prop, NULL) == 0) {
930        // not in the emulator
931        return JNI_TRUE;
932    }
933    // In the emulator this property will be set to 1 when hardware GLES is
934    // enabled, 0 otherwise. On old emulator versions it will be undefined.
935    property_get("ro.kernel.qemu.gles", prop, "0");
936    return atoi(prop) == 1 ? JNI_TRUE : JNI_FALSE;
937#else
938    return JNI_FALSE;
939#endif
940}
941
942// ----------------------------------------------------------------------------
943// Logging
944// ----------------------------------------------------------------------------
945
946static void
947android_app_ActivityThread_dumpGraphics(JNIEnv* env, jobject clazz, jobject javaFileDescriptor) {
948#ifdef USE_OPENGL_RENDERER
949    int fd = jniGetFDFromFileDescriptor(env, javaFileDescriptor);
950    android::uirenderer::RenderNode::outputLogBuffer(fd);
951#endif // USE_OPENGL_RENDERER
952}
953
954// ----------------------------------------------------------------------------
955// JNI Glue
956// ----------------------------------------------------------------------------
957
958const char* const kClassPathName = "android/view/GLES20Canvas";
959
960static JNINativeMethod gMethods[] = {
961    { "nIsAvailable",       "()Z",             (void*) android_view_GLES20Canvas_isAvailable },
962
963#ifdef USE_OPENGL_RENDERER
964    { "nFlushCaches",       "(I)V",            (void*) android_view_GLES20Canvas_flushCaches },
965    { "nInitCaches",        "()Z",             (void*) android_view_GLES20Canvas_initCaches },
966    { "nTerminateCaches",   "()V",             (void*) android_view_GLES20Canvas_terminateCaches },
967
968    { "nInitAtlas",         "(Landroid/view/GraphicBuffer;[JI)V",
969            (void*) android_view_GLES20Canvas_initAtlas },
970
971    { "nCreateRenderer",    "()J",             (void*) android_view_GLES20Canvas_createRenderer },
972    { "nDestroyRenderer",   "(J)V",            (void*) android_view_GLES20Canvas_destroyRenderer },
973    { "nSetViewport",       "(JII)V",          (void*) android_view_GLES20Canvas_setViewport },
974    { "nPrepare",           "(JZ)I",           (void*) android_view_GLES20Canvas_prepare },
975    { "nPrepareDirty",      "(JIIIIZ)I",       (void*) android_view_GLES20Canvas_prepareDirty },
976    { "nFinish",            "(J)V",            (void*) android_view_GLES20Canvas_finish },
977    { "nSetProperty",           "(Ljava/lang/String;Ljava/lang/String;)V",
978            (void*) android_view_GLES20Canvas_setProperty },
979
980
981    { "nGetStencilSize",    "()I",             (void*) android_view_GLES20Canvas_getStencilSize },
982
983    { "nCallDrawGLFunction", "(JJ)I",          (void*) android_view_GLES20Canvas_callDrawGLFunction },
984
985    { "nSave",              "(JI)I",           (void*) android_view_GLES20Canvas_save },
986    { "nRestore",           "(J)V",            (void*) android_view_GLES20Canvas_restore },
987    { "nRestoreToCount",    "(JI)V",           (void*) android_view_GLES20Canvas_restoreToCount },
988    { "nGetSaveCount",      "(J)I",            (void*) android_view_GLES20Canvas_getSaveCount },
989
990    { "nSaveLayer",         "(JFFFFJI)I",      (void*) android_view_GLES20Canvas_saveLayer },
991    { "nSaveLayer",         "(JJI)I",          (void*) android_view_GLES20Canvas_saveLayerClip },
992    { "nSaveLayerAlpha",    "(JFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayerAlpha },
993    { "nSaveLayerAlpha",    "(JII)I",          (void*) android_view_GLES20Canvas_saveLayerAlphaClip },
994
995    { "nQuickReject",       "(JFFFF)Z",        (void*) android_view_GLES20Canvas_quickReject },
996    { "nClipRect",          "(JFFFFI)Z",       (void*) android_view_GLES20Canvas_clipRectF },
997    { "nClipRect",          "(JIIIII)Z",       (void*) android_view_GLES20Canvas_clipRect },
998    { "nClipPath",          "(JJI)Z",          (void*) android_view_GLES20Canvas_clipPath },
999    { "nClipRegion",        "(JJI)Z",          (void*) android_view_GLES20Canvas_clipRegion },
1000
1001    { "nTranslate",         "(JFF)V",          (void*) android_view_GLES20Canvas_translate },
1002    { "nRotate",            "(JF)V",           (void*) android_view_GLES20Canvas_rotate },
1003    { "nScale",             "(JFF)V",          (void*) android_view_GLES20Canvas_scale },
1004    { "nSkew",              "(JFF)V",          (void*) android_view_GLES20Canvas_skew },
1005
1006    { "nSetMatrix",         "(JJ)V",           (void*) android_view_GLES20Canvas_setMatrix },
1007    { "nGetMatrix",         "(JJ)V",           (void*) android_view_GLES20Canvas_getMatrix },
1008    { "nConcatMatrix",      "(JJ)V",           (void*) android_view_GLES20Canvas_concatMatrix },
1009
1010    { "nDrawBitmap",        "(JJ[BFFJ)V",      (void*) android_view_GLES20Canvas_drawBitmap },
1011    { "nDrawBitmap",        "(JJ[BFFFFFFFFJ)V",(void*) android_view_GLES20Canvas_drawBitmapRect },
1012    { "nDrawBitmap",        "(JJ[BJJ)V",       (void*) android_view_GLES20Canvas_drawBitmapMatrix },
1013    { "nDrawBitmap",        "(J[IIIFFIIZJ)V",  (void*) android_view_GLES20Canvas_drawBitmapData },
1014
1015    { "nDrawBitmapMesh",    "(JJ[BII[FI[IIJ)V",(void*) android_view_GLES20Canvas_drawBitmapMesh },
1016
1017    { "nDrawPatch",         "(JJ[BJFFFFJ)V",   (void*) android_view_GLES20Canvas_drawPatch },
1018
1019    { "nDrawColor",         "(JII)V",          (void*) android_view_GLES20Canvas_drawColor },
1020    { "nDrawRect",          "(JFFFFJ)V",       (void*) android_view_GLES20Canvas_drawRect },
1021    { "nDrawRects",         "(JJJ)V",          (void*) android_view_GLES20Canvas_drawRegionAsRects },
1022    { "nDrawRects",         "(J[FIJ)V",        (void*) android_view_GLES20Canvas_drawRects },
1023    { "nDrawRoundRect",     "(JFFFFFFJ)V",     (void*) android_view_GLES20Canvas_drawRoundRect },
1024    { "nDrawCircle",        "(JFFFJ)V",        (void*) android_view_GLES20Canvas_drawCircle },
1025    { "nDrawCircle",        "(JJJJJ)V",        (void*) android_view_GLES20Canvas_drawCircleProps },
1026    { "nDrawOval",          "(JFFFFJ)V",       (void*) android_view_GLES20Canvas_drawOval },
1027    { "nDrawArc",           "(JFFFFFFZJ)V",    (void*) android_view_GLES20Canvas_drawArc },
1028    { "nDrawPoints",        "(J[FIIJ)V",       (void*) android_view_GLES20Canvas_drawPoints },
1029
1030    { "nDrawPath",          "(JJJ)V",          (void*) android_view_GLES20Canvas_drawPath },
1031    { "nDrawLines",         "(J[FIIJ)V",       (void*) android_view_GLES20Canvas_drawLines },
1032
1033    { "nResetModifiers",    "(JI)V",           (void*) android_view_GLES20Canvas_resetModifiers },
1034    { "nSetupShader",       "(JJ)V",           (void*) android_view_GLES20Canvas_setupShader },
1035    { "nSetupShadow",       "(JFFFI)V",        (void*) android_view_GLES20Canvas_setupShadow },
1036
1037    { "nSetupPaintFilter",  "(JII)V",          (void*) android_view_GLES20Canvas_setupPaintFilter },
1038    { "nResetPaintFilter",  "(J)V",            (void*) android_view_GLES20Canvas_resetPaintFilter },
1039
1040    { "nDrawText",          "(J[CIIFFIJ)V",    (void*) android_view_GLES20Canvas_drawTextArray },
1041    { "nDrawText",          "(JLjava/lang/String;IIFFIJ)V",
1042            (void*) android_view_GLES20Canvas_drawText },
1043
1044    { "nDrawTextOnPath",    "(J[CIIJFFIJ)V",   (void*) android_view_GLES20Canvas_drawTextArrayOnPath },
1045    { "nDrawTextOnPath",    "(JLjava/lang/String;IIJFFIJ)V",
1046            (void*) android_view_GLES20Canvas_drawTextOnPath },
1047
1048    { "nDrawTextRun",       "(J[CIIIIFFIJ)V",  (void*) android_view_GLES20Canvas_drawTextRunArray },
1049    { "nDrawTextRun",       "(JLjava/lang/String;IIIIFFIJ)V",
1050            (void*) android_view_GLES20Canvas_drawTextRun },
1051
1052    { "nDrawPosText",       "(J[CII[FJ)V",     (void*) android_view_GLES20Canvas_drawPosTextArray },
1053    { "nDrawPosText",       "(JLjava/lang/String;II[FJ)V",
1054            (void*) android_view_GLES20Canvas_drawPosText },
1055
1056    { "nGetClipBounds",     "(JLandroid/graphics/Rect;)Z",
1057            (void*) android_view_GLES20Canvas_getClipBounds },
1058
1059    { "nFinishRecording",        "(J)J",      (void*) android_view_GLES20Canvas_finishRecording },
1060    { "nDrawDisplayList",        "(JJLandroid/graphics/Rect;I)I",
1061            (void*) android_view_GLES20Canvas_drawDisplayList },
1062
1063    { "nCreateDisplayListRenderer", "()J",     (void*) android_view_GLES20Canvas_createDisplayListRenderer },
1064
1065    { "nDrawLayer",              "(JJFF)V",    (void*) android_view_GLES20Canvas_drawLayer },
1066    { "nCopyLayer",              "(JJ)Z",      (void*) android_view_GLES20Canvas_copyLayer },
1067    { "nClearLayerUpdates",      "(J)V",       (void*) android_view_GLES20Canvas_clearLayerUpdates },
1068    { "nFlushLayerUpdates",      "(J)V",       (void*) android_view_GLES20Canvas_flushLayerUpdates },
1069    { "nPushLayerUpdate",        "(JJ)V",      (void*) android_view_GLES20Canvas_pushLayerUpdate },
1070    { "nCancelLayerUpdate",      "(JJ)V",      (void*) android_view_GLES20Canvas_cancelLayerUpdate },
1071
1072    { "nGetMaximumTextureWidth",  "()I",       (void*) android_view_GLES20Canvas_getMaxTextureWidth },
1073    { "nGetMaximumTextureHeight", "()I",       (void*) android_view_GLES20Canvas_getMaxTextureHeight },
1074
1075#endif
1076};
1077
1078static JNINativeMethod gActivityThreadMethods[] = {
1079    { "dumpGraphicsInfo",        "(Ljava/io/FileDescriptor;)V",
1080                                               (void*) android_app_ActivityThread_dumpGraphics }
1081};
1082
1083
1084#ifdef USE_OPENGL_RENDERER
1085    #define FIND_CLASS(var, className) \
1086            var = env->FindClass(className); \
1087            LOG_FATAL_IF(! var, "Unable to find class " className);
1088
1089    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
1090            var = env->GetMethodID(clazz, methodName, methodDescriptor); \
1091            LOG_FATAL_IF(! var, "Unable to find method " methodName);
1092#else
1093    #define FIND_CLASS(var, className)
1094    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor)
1095#endif
1096
1097int register_android_view_GLES20Canvas(JNIEnv* env) {
1098    jclass clazz;
1099    FIND_CLASS(clazz, "android/graphics/Rect");
1100    GET_METHOD_ID(gRectClassInfo.set, clazz, "set", "(IIII)V");
1101
1102    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
1103}
1104
1105const char* const kActivityThreadPathName = "android/app/ActivityThread";
1106
1107int register_android_app_ActivityThread(JNIEnv* env) {
1108    return AndroidRuntime::registerNativeMethods(env, kActivityThreadPathName,
1109            gActivityThreadMethods, NELEM(gActivityThreadMethods));
1110}
1111
1112};
1113