android_view_GLES20Canvas.cpp revision 240047694338830521594688de194a1cde2d4537 
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 <Stencil.h>
49#include <Rect.h>
50#include <RenderNode.h>
51#include <CanvasProperty.h>
52
53#ifdef USE_MINIKIN
54#include <minikin/Layout.h>
55#include "MinikinSkia.h"
56#include "MinikinUtils.h"
57#endif
58
59#include <TextLayout.h>
60#include <TextLayoutCache.h>
61
62namespace android {
63
64using namespace uirenderer;
65
66/**
67 * Note: OpenGLRenderer JNI layer is generated and compiled only on supported
68 *       devices. This means all the logic must be compiled only when the
69 *       preprocessor variable USE_OPENGL_RENDERER is defined.
70 */
71#ifdef USE_OPENGL_RENDERER
72
73// ----------------------------------------------------------------------------
74// Defines
75// ----------------------------------------------------------------------------
76
77// Debug
78#define DEBUG_RENDERER 0
79
80// Debug
81#if DEBUG_RENDERER
82    #define RENDERER_LOGD(...) ALOGD(__VA_ARGS__)
83#else
84    #define RENDERER_LOGD(...)
85#endif
86
87// ----------------------------------------------------------------------------
88
89static struct {
90    jmethodID set;
91} gRectClassInfo;
92
93// ----------------------------------------------------------------------------
94// Constructors
95// ----------------------------------------------------------------------------
96
97static void android_view_GLES20Canvas_destroyRenderer(JNIEnv* env, jobject clazz,
98        jlong rendererPtr) {
99    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
100    RENDERER_LOGD("Destroy OpenGLRenderer");
101    delete renderer;
102}
103
104// ----------------------------------------------------------------------------
105// Setup
106// ----------------------------------------------------------------------------
107
108static void android_view_GLES20Canvas_setViewport(JNIEnv* env, jobject clazz,
109        jlong rendererPtr, jint width, jint height) {
110    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
111    renderer->setViewport(width, height);
112}
113
114static int android_view_GLES20Canvas_prepare(JNIEnv* env, jobject clazz,
115        jlong rendererPtr, jboolean opaque) {
116    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
117    return renderer->prepare(opaque);
118}
119
120static int android_view_GLES20Canvas_prepareDirty(JNIEnv* env, jobject clazz,
121        jlong rendererPtr, jint left, jint top, jint right, jint bottom,
122        jboolean opaque) {
123    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
124    return renderer->prepareDirty(left, top, right, bottom, opaque);
125}
126
127static void android_view_GLES20Canvas_finish(JNIEnv* env, jobject clazz,
128        jlong rendererPtr) {
129    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
130    renderer->finish();
131}
132
133static void android_view_GLES20Canvas_setProperty(JNIEnv* env,
134        jobject clazz, jstring name, jstring value) {
135    if (!Caches::hasInstance()) {
136        ALOGW("can't set property, no Caches instance");
137        return;
138    }
139
140    if (name == NULL || value == NULL) {
141        ALOGW("can't set prop, null passed");
142    }
143
144    const char* nameCharArray = env->GetStringUTFChars(name, NULL);
145    const char* valueCharArray = env->GetStringUTFChars(value, NULL);
146    Caches::getInstance().setTempProperty(nameCharArray, valueCharArray);
147    env->ReleaseStringUTFChars(name, nameCharArray);
148    env->ReleaseStringUTFChars(name, valueCharArray);
149}
150
151// ----------------------------------------------------------------------------
152// Functor
153// ----------------------------------------------------------------------------
154
155static jint android_view_GLES20Canvas_callDrawGLFunction(JNIEnv* env, jobject clazz,
156        jlong rendererPtr, jlong functorPtr) {
157    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
158    Functor* functor = reinterpret_cast<Functor*>(functorPtr);
159    android::uirenderer::Rect dirty;
160    return renderer->callDrawGLFunction(functor, dirty);
161}
162
163// ----------------------------------------------------------------------------
164// Misc
165// ----------------------------------------------------------------------------
166
167static jint android_view_GLES20Canvas_getMaxTextureWidth(JNIEnv* env, jobject clazz) {
168    return Caches::getInstance().maxTextureSize;
169}
170
171static jint android_view_GLES20Canvas_getMaxTextureHeight(JNIEnv* env, jobject clazz) {
172    return Caches::getInstance().maxTextureSize;
173}
174
175// ----------------------------------------------------------------------------
176// State
177// ----------------------------------------------------------------------------
178
179static jint android_view_GLES20Canvas_save(JNIEnv* env, jobject clazz, jlong rendererPtr,
180        jint flags) {
181    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
182    return renderer->save(flags);
183}
184
185static jint android_view_GLES20Canvas_getSaveCount(JNIEnv* env, jobject clazz,
186        jlong rendererPtr) {
187    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
188    return renderer->getSaveCount();
189}
190
191static void android_view_GLES20Canvas_restore(JNIEnv* env, jobject clazz,
192        jlong rendererPtr) {
193    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
194    renderer->restore();
195}
196
197static void android_view_GLES20Canvas_restoreToCount(JNIEnv* env, jobject clazz,
198        jlong rendererPtr, jint saveCount) {
199    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
200    renderer->restoreToCount(saveCount);
201}
202
203// ----------------------------------------------------------------------------
204// Layers
205// ----------------------------------------------------------------------------
206
207static jint android_view_GLES20Canvas_saveLayer(JNIEnv* env, jobject clazz,
208        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
209        jlong paintPtr, jint saveFlags) {
210    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
211    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
212    return renderer->saveLayer(left, top, right, bottom, paint, saveFlags);
213}
214
215static jint android_view_GLES20Canvas_saveLayerClip(JNIEnv* env, jobject clazz,
216        jlong rendererPtr, jlong paintPtr, jint saveFlags) {
217    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
218    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
219    const android::uirenderer::Rect& bounds(renderer->getLocalClipBounds());
220    return renderer->saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom,
221            paint, saveFlags);
222}
223
224static jint android_view_GLES20Canvas_saveLayerAlpha(JNIEnv* env, jobject clazz,
225        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
226        jint alpha, jint saveFlags) {
227    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
228    return renderer->saveLayerAlpha(left, top, right, bottom, alpha, saveFlags);
229}
230
231static jint android_view_GLES20Canvas_saveLayerAlphaClip(JNIEnv* env, jobject clazz,
232        jlong rendererPtr, jint alpha, jint saveFlags) {
233    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
234    const android::uirenderer::Rect& bounds(renderer->getLocalClipBounds());
235    return renderer->saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom,
236            alpha, saveFlags);
237}
238
239// ----------------------------------------------------------------------------
240// Clipping
241// ----------------------------------------------------------------------------
242
243static jboolean android_view_GLES20Canvas_quickReject(JNIEnv* env, jobject clazz,
244        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom) {
245    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
246    const bool result = renderer->quickRejectConservative(left, top, right, bottom);
247    return result ? JNI_TRUE : JNI_FALSE;
248}
249
250static jboolean android_view_GLES20Canvas_clipRectF(JNIEnv* env, jobject clazz,
251        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
252        jint op) {
253    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
254    const bool result = renderer->clipRect(left, top, right, bottom,
255                                           static_cast<SkRegion::Op>(op));
256    return result ? JNI_TRUE : JNI_FALSE;
257}
258
259static jboolean android_view_GLES20Canvas_clipRect(JNIEnv* env, jobject clazz,
260        jlong rendererPtr, jint left, jint top, jint right, jint bottom,
261        jint op) {
262    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
263    const bool result = renderer->clipRect(float(left), float(top), float(right),
264                                           float(bottom),
265                                           static_cast<SkRegion::Op>(op));
266    return result ? JNI_TRUE : JNI_FALSE;
267}
268
269static jboolean android_view_GLES20Canvas_clipPath(JNIEnv* env, jobject clazz,
270        jlong rendererPtr, jlong pathPtr, jint op) {
271    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
272    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
273    const bool result = renderer->clipPath(path, static_cast<SkRegion::Op>(op));
274    return result ? JNI_TRUE : JNI_FALSE;
275}
276
277static jboolean android_view_GLES20Canvas_clipRegion(JNIEnv* env, jobject clazz,
278        jlong rendererPtr, jlong regionPtr, jint op) {
279    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
280    SkRegion* region = reinterpret_cast<SkRegion*>(regionPtr);
281    const bool result = renderer->clipRegion(region, static_cast<SkRegion::Op>(op));
282    return result ? JNI_TRUE : JNI_FALSE;
283}
284
285static jboolean android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject clazz,
286        jlong rendererPtr, jobject rect) {
287    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
288    const android::uirenderer::Rect& bounds(renderer->getLocalClipBounds());
289
290    env->CallVoidMethod(rect, gRectClassInfo.set,
291            int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
292
293    return !bounds.isEmpty() ? JNI_TRUE : JNI_FALSE;
294}
295
296// ----------------------------------------------------------------------------
297// Transforms
298// ----------------------------------------------------------------------------
299
300static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject clazz,
301        jlong rendererPtr, jfloat dx, jfloat dy) {
302    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
303    renderer->translate(dx, dy);
304}
305
306static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject clazz,
307        jlong rendererPtr, jfloat degrees) {
308    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
309    renderer->rotate(degrees);
310}
311
312static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject clazz,
313        jlong rendererPtr, jfloat sx, jfloat sy) {
314    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
315    renderer->scale(sx, sy);
316}
317
318static void android_view_GLES20Canvas_skew(JNIEnv* env, jobject clazz,
319        jlong rendererPtr, jfloat sx, jfloat sy) {
320    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
321    renderer->skew(sx, sy);
322}
323
324static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject clazz,
325        jlong rendererPtr, jlong matrixPtr) {
326    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
327    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
328    renderer->setMatrix(matrix ? *matrix : SkMatrix::I());
329}
330
331static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject clazz,
332        jlong rendererPtr, jlong matrixPtr) {
333    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
334    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
335    renderer->getMatrix(matrix);
336}
337
338static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject clazz,
339        jlong rendererPtr, jlong matrixPtr) {
340    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
341    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
342    renderer->concatMatrix(*matrix);
343}
344
345// ----------------------------------------------------------------------------
346// Drawing
347// ----------------------------------------------------------------------------
348
349static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject clazz,
350        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
351        jfloat left, jfloat top, jlong paintPtr) {
352    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
353    // This object allows the renderer to allocate a global JNI ref to the buffer object.
354    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
355
356    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
357    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
358    renderer->drawBitmap(bitmap, left, top, paint);
359}
360
361static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject clazz,
362        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
363        float srcLeft, float srcTop, float srcRight, float srcBottom,
364        float dstLeft, float dstTop, float dstRight, float dstBottom, jlong paintPtr) {
365    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
366    // This object allows the renderer to allocate a global JNI ref to the buffer object.
367    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
368
369    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
370    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
371    renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom,
372            dstLeft, dstTop, dstRight, dstBottom, paint);
373}
374
375static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject clazz,
376        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
377        jlong matrixPtr, jlong paintPtr) {
378    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
379    // This object allows the renderer to allocate a global JNI ref to the buffer object.
380    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
381
382    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
383    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
384    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
385    renderer->drawBitmap(bitmap, *matrix, paint);
386}
387
388static void android_view_GLES20Canvas_drawBitmapData(JNIEnv* env, jobject clazz,
389        jlong rendererPtr, jintArray colors, jint offset, jint stride,
390        jfloat left, jfloat top, jint width, jint height, jboolean hasAlpha, jlong paintPtr) {
391    SkBitmap* bitmap = new SkBitmap;
392    bitmap->setConfig(hasAlpha ? SkBitmap::kARGB_8888_Config : SkBitmap::kRGB_565_Config,
393            width, height);
394
395    if (!bitmap->allocPixels()) {
396        delete bitmap;
397        return;
398    }
399
400    if (!GraphicsJNI::SetPixels(env, colors, offset, stride, 0, 0, width, height, *bitmap, true)) {
401        delete bitmap;
402        return;
403    }
404
405    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
406    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
407    renderer->drawBitmapData(bitmap, left, top, paint);
408
409    // If the renderer is a deferred renderer it will own the bitmap
410    if (!renderer->isRecording()) {
411        delete bitmap;
412    }
413}
414
415static void android_view_GLES20Canvas_drawBitmapMesh(JNIEnv* env, jobject clazz,
416        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
417        jint meshWidth, jint meshHeight, jfloatArray vertices, jint offset, jintArray colors,
418        jint colorOffset, jlong paintPtr) {
419    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
420    // This object allows the renderer to allocate a global JNI ref to the buffer object.
421    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
422
423    jfloat* verticesArray = vertices ? env->GetFloatArrayElements(vertices, NULL) + offset : NULL;
424    jint* colorsArray = colors ? env->GetIntArrayElements(colors, NULL) + colorOffset : NULL;
425
426    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
427    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
428    renderer->drawBitmapMesh(bitmap, meshWidth, meshHeight, verticesArray, colorsArray, paint);
429
430    if (vertices) env->ReleaseFloatArrayElements(vertices, verticesArray, 0);
431    if (colors) env->ReleaseIntArrayElements(colors, colorsArray, 0);
432}
433
434static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject clazz,
435        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer, jlong patchPtr,
436        float left, float top, float right, float bottom, jlong paintPtr) {
437    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
438    // This object allows the renderer to allocate a global JNI ref to the buffer object.
439    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
440
441    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
442    Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(patchPtr);
443    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
444    renderer->drawPatch(bitmap, patch, left, top, right, bottom, paint);
445}
446
447static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject clazz,
448        jlong rendererPtr, jint color, jint mode) {
449    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
450    renderer->drawColor(color, static_cast<SkXfermode::Mode>(mode));
451}
452
453static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject clazz,
454        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
455        jlong paintPtr) {
456    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
457    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
458    renderer->drawRect(left, top, right, bottom, paint);
459}
460
461static void android_view_GLES20Canvas_drawRoundRect(JNIEnv* env, jobject clazz,
462        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
463        jfloat rx, jfloat ry, jlong paintPtr) {
464    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
465    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
466    renderer->drawRoundRect(left, top, right, bottom, rx, ry, paint);
467}
468
469static void android_view_GLES20Canvas_drawCircle(JNIEnv* env, jobject clazz,
470        jlong rendererPtr, jfloat x, jfloat y, jfloat radius, jlong paintPtr) {
471    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
472    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
473    renderer->drawCircle(x, y, radius, paint);
474}
475
476static void android_view_GLES20Canvas_drawCircleProps(JNIEnv* env, jobject clazz,
477        jlong rendererPtr, jlong xPropPtr, jlong yPropPtr, jlong radiusPropPtr, jlong paintPropPtr) {
478    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
479    CanvasPropertyPrimitive* xProp = reinterpret_cast<CanvasPropertyPrimitive*>(xPropPtr);
480    CanvasPropertyPrimitive* yProp = reinterpret_cast<CanvasPropertyPrimitive*>(yPropPtr);
481    CanvasPropertyPrimitive* radiusProp = reinterpret_cast<CanvasPropertyPrimitive*>(radiusPropPtr);
482    CanvasPropertyPaint* paintProp = reinterpret_cast<CanvasPropertyPaint*>(paintPropPtr);
483    renderer->drawCircle(xProp, yProp, radiusProp, paintProp);
484}
485
486static void android_view_GLES20Canvas_drawOval(JNIEnv* env, jobject clazz,
487        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
488        jlong paintPtr) {
489    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
490    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
491    renderer->drawOval(left, top, right, bottom, paint);
492}
493
494static void android_view_GLES20Canvas_drawArc(JNIEnv* env, jobject clazz,
495        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
496        jfloat startAngle, jfloat sweepAngle, jboolean useCenter, jlong paintPtr) {
497    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
498    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
499    renderer->drawArc(left, top, right, bottom, startAngle, sweepAngle, useCenter, paint);
500}
501
502static void android_view_GLES20Canvas_drawRegionAsRects(JNIEnv* env, jobject clazz,
503        jlong rendererPtr, jlong regionPtr, jlong paintPtr) {
504    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
505    SkRegion* region = reinterpret_cast<SkRegion*>(regionPtr);
506    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
507    if (paint->getStyle() != SkPaint::kFill_Style ||
508            (paint->isAntiAlias() && !renderer->isCurrentTransformSimple())) {
509        SkRegion::Iterator it(*region);
510        while (!it.done()) {
511            const SkIRect& r = it.rect();
512            renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint);
513            it.next();
514        }
515    } else {
516        int count = 0;
517        Vector<float> rects;
518        SkRegion::Iterator it(*region);
519        while (!it.done()) {
520            const SkIRect& r = it.rect();
521            rects.push(r.fLeft);
522            rects.push(r.fTop);
523            rects.push(r.fRight);
524            rects.push(r.fBottom);
525            count += 4;
526            it.next();
527        }
528        renderer->drawRects(rects.array(), count, paint);
529    }
530}
531
532static void android_view_GLES20Canvas_drawPoints(JNIEnv* env, jobject clazz,
533        jlong rendererPtr, jfloatArray points, jint offset, jint count, jlong paintPtr) {
534    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
535    jfloat* storage = env->GetFloatArrayElements(points, NULL);
536    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
537    renderer->drawPoints(storage + offset, count, paint);
538    env->ReleaseFloatArrayElements(points, storage, 0);
539}
540
541static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject clazz,
542        jlong rendererPtr, jlong pathPtr, jlong paintPtr) {
543    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
544    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
545    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
546    renderer->drawPath(path, paint);
547}
548
549static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject clazz,
550        jlong rendererPtr, jfloatArray points, jint offset, jint count, jlong paintPtr) {
551    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
552    jfloat* storage = env->GetFloatArrayElements(points, NULL);
553    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
554    renderer->drawLines(storage + offset, count, paint);
555    env->ReleaseFloatArrayElements(points, storage, 0);
556}
557
558// ----------------------------------------------------------------------------
559// Draw filters
560// ----------------------------------------------------------------------------
561
562static void android_view_GLES20Canvas_setupPaintFilter(JNIEnv* env, jobject clazz,
563        jlong rendererPtr, jint clearBits, jint setBits) {
564    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
565    renderer->setupPaintFilter(clearBits, setBits);
566}
567
568static void android_view_GLES20Canvas_resetPaintFilter(JNIEnv* env, jobject clazz,
569        jlong rendererPtr) {
570    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
571    renderer->resetPaintFilter();
572}
573
574// ----------------------------------------------------------------------------
575// Text
576// ----------------------------------------------------------------------------
577
578// TODO: this is moving to MinikinUtils, remove with USE_MINIKIN ifdef
579static float xOffsetForTextAlign(SkPaint* paint, float totalAdvance) {
580    switch (paint->getTextAlign()) {
581        case SkPaint::kCenter_Align:
582            return -totalAdvance / 2.0f;
583            break;
584        case SkPaint::kRight_Align:
585            return -totalAdvance;
586            break;
587        default:
588            break;
589    }
590    return 0;
591}
592
593#ifdef USE_MINIKIN
594
595class RenderTextFunctor {
596public:
597    RenderTextFunctor(const Layout& layout, OpenGLRenderer* renderer, jfloat x, jfloat y,
598                SkPaint* paint, uint16_t* glyphs, float* pos, float totalAdvance,
599                uirenderer::Rect& bounds)
600            : layout(layout), renderer(renderer), x(x), y(y), paint(paint), glyphs(glyphs),
601            pos(pos), totalAdvance(totalAdvance), bounds(bounds) { }
602    void operator()(SkTypeface* t, size_t start, size_t end) {
603        for (size_t i = start; i < end; i++) {
604            glyphs[i] = layout.getGlyphId(i);
605            pos[2 * i] = layout.getX(i);
606            pos[2 * i + 1] = layout.getY(i);
607        }
608        paint->setTypeface(t);
609        size_t glyphsCount = end - start;
610        int bytesCount = glyphsCount * sizeof(jchar);
611        renderer->drawText((const char*) (glyphs + start), bytesCount, glyphsCount,
612            x, y, pos + 2 * start, paint, totalAdvance, bounds);
613    }
614private:
615    const Layout& layout;
616    OpenGLRenderer* renderer;
617    jfloat x;
618    jfloat y;
619    SkPaint* paint;
620    uint16_t* glyphs;
621    float* pos;
622    float totalAdvance;
623    uirenderer::Rect& bounds;
624};
625
626static void renderTextLayout(OpenGLRenderer* renderer, Layout* layout,
627    jfloat x, jfloat y, SkPaint* paint) {
628    size_t nGlyphs = layout->nGlyphs();
629    float* pos = new float[nGlyphs * 2];
630    uint16_t* glyphs = new uint16_t[nGlyphs];
631    MinikinRect b;
632    layout->getBounds(&b);
633    android::uirenderer::Rect bounds(b.mLeft, b.mTop, b.mRight, b.mBottom);
634    bounds.translate(x, y);
635    float totalAdvance = layout->getAdvance();
636
637    RenderTextFunctor f(*layout, renderer, x, y, paint, glyphs, pos, totalAdvance, bounds);
638    MinikinUtils::forFontRun(*layout, f);
639    delete[] glyphs;
640    delete[] pos;
641}
642#endif
643
644static void renderText(OpenGLRenderer* renderer, const jchar* text, int count,
645        jfloat x, jfloat y, int flags, SkPaint* paint, TypefaceImpl* typeface) {
646#ifdef USE_MINIKIN
647    Layout layout;
648    std::string css = MinikinUtils::setLayoutProperties(&layout, paint, flags, typeface);
649    layout.doLayout(text, 0, count, count, css);
650    x += xOffsetForTextAlign(paint, layout.getAdvance());
651    renderTextLayout(renderer, &layout, x, y, paint);
652#else
653    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
654            text, 0, count, count, flags);
655    if (value == NULL) {
656        return;
657    }
658    const jchar* glyphs = value->getGlyphs();
659    size_t glyphsCount = value->getGlyphsCount();
660    jfloat totalAdvance = value->getTotalAdvance();
661    x += xOffsetForTextAlign(paint, totalAdvance);
662    const float* positions = value->getPos();
663    int bytesCount = glyphsCount * sizeof(jchar);
664    const SkRect& r = value->getBounds();
665    android::uirenderer::Rect bounds(r.fLeft, r.fTop, r.fRight, r.fBottom);
666    bounds.translate(x, y);
667
668    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount,
669            x, y, positions, paint, totalAdvance, bounds);
670#endif
671}
672
673static void renderTextOnPath(OpenGLRenderer* renderer, const jchar* text, int count,
674        SkPath* path, jfloat hOffset, jfloat vOffset, int flags, SkPaint* paint) {
675    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
676            text, 0, count, count, flags);
677    if (value == NULL) {
678        return;
679    }
680    const jchar* glyphs = value->getGlyphs();
681    size_t glyphsCount = value->getGlyphsCount();
682    int bytesCount = glyphsCount * sizeof(jchar);
683    renderer->drawTextOnPath((const char*) glyphs, bytesCount, glyphsCount, path,
684            hOffset, vOffset, paint);
685}
686
687static void renderTextRun(OpenGLRenderer* renderer, const jchar* text,
688        jint start, jint count, jint contextCount, jfloat x, jfloat y,
689        int flags, SkPaint* paint, TypefaceImpl* typeface) {
690#ifdef USE_MINIKIN
691    Layout layout;
692    std::string css = MinikinUtils::setLayoutProperties(&layout, paint, flags, typeface);
693    layout.doLayout(text, start, count, contextCount, css);
694    x += xOffsetForTextAlign(paint, layout.getAdvance());
695    renderTextLayout(renderer, &layout, x, y, paint);
696#else
697    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
698            text, start, count, contextCount, flags);
699    if (value == NULL) {
700        return;
701    }
702    const jchar* glyphs = value->getGlyphs();
703    size_t glyphsCount = value->getGlyphsCount();
704    jfloat totalAdvance = value->getTotalAdvance();
705    x += xOffsetForTextAlign(paint, totalAdvance);
706    const float* positions = value->getPos();
707    int bytesCount = glyphsCount * sizeof(jchar);
708    const SkRect& r = value->getBounds();
709    android::uirenderer::Rect bounds(r.fLeft, r.fTop, r.fRight, r.fBottom);
710    bounds.translate(x, y);
711
712    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount,
713            x, y, positions, paint, totalAdvance, bounds);
714#endif
715}
716
717static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject clazz,
718        jlong rendererPtr, jcharArray text, jint index, jint count,
719        jfloat x, jfloat y, jint flags, jlong paintPtr, jlong typefacePtr) {
720    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
721    jchar* textArray = env->GetCharArrayElements(text, NULL);
722    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
723    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
724
725    renderText(renderer, textArray + index, count, x, y, flags, paint, typeface);
726    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
727}
728
729static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject clazz,
730        jlong rendererPtr, jstring text, jint start, jint end,
731        jfloat x, jfloat y, jint flags, jlong paintPtr, jlong typefacePtr) {
732    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
733    const jchar* textArray = env->GetStringChars(text, NULL);
734    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
735    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
736
737    renderText(renderer, textArray + start, end - start, x, y, flags, paint, typeface);
738    env->ReleaseStringChars(text, textArray);
739}
740
741static void android_view_GLES20Canvas_drawTextArrayOnPath(JNIEnv* env, jobject clazz,
742        jlong rendererPtr, jcharArray text, jint index, jint count,
743        jlong pathPtr, jfloat hOffset, jfloat vOffset, jint flags, jlong paintPtr) {
744    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
745    jchar* textArray = env->GetCharArrayElements(text, NULL);
746    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
747    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
748
749    renderTextOnPath(renderer, textArray + index, count, path,
750            hOffset, vOffset, flags, paint);
751    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
752}
753
754static void android_view_GLES20Canvas_drawTextOnPath(JNIEnv* env, jobject clazz,
755        jlong rendererPtr, jstring text, jint start, jint end,
756        jlong pathPtr, jfloat hOffset, jfloat vOffset, jint flags, jlong paintPtr) {
757    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
758    const jchar* textArray = env->GetStringChars(text, NULL);
759    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
760    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
761
762    renderTextOnPath(renderer, textArray + start, end - start, path,
763            hOffset, vOffset, flags, paint);
764    env->ReleaseStringChars(text, textArray);
765}
766
767static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject clazz,
768        jlong rendererPtr, jcharArray text, jint index, jint count,
769        jint contextIndex, jint contextCount, jfloat x, jfloat y, jint dirFlags,
770        jlong paintPtr, jlong typefacePtr) {
771    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
772    jchar* textArray = env->GetCharArrayElements(text, NULL);
773    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
774    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
775
776    renderTextRun(renderer, textArray + contextIndex, index - contextIndex,
777            count, contextCount, x, y, dirFlags, paint, typeface);
778    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
779 }
780
781static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject clazz,
782        jlong rendererPtr, jstring text, jint start, jint end,
783        jint contextStart, int contextEnd, jfloat x, jfloat y, jint dirFlags,
784        jlong paintPtr, jlong typefacePtr) {
785    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
786    const jchar* textArray = env->GetStringChars(text, NULL);
787    jint count = end - start;
788    jint contextCount = contextEnd - contextStart;
789    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
790    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
791
792    renderTextRun(renderer, textArray + contextStart, start - contextStart,
793            count, contextCount, x, y, dirFlags, paint, typeface);
794    env->ReleaseStringChars(text, textArray);
795}
796
797static void renderPosText(OpenGLRenderer* renderer, const jchar* text, int count,
798        const jfloat* positions, jint dirFlags, SkPaint* paint) {
799    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
800            text, 0, count, count, dirFlags);
801    if (value == NULL) {
802        return;
803    }
804    const jchar* glyphs = value->getGlyphs();
805    size_t glyphsCount = value->getGlyphsCount();
806    if (count < int(glyphsCount)) glyphsCount = count;
807    int bytesCount = glyphsCount * sizeof(jchar);
808
809    renderer->drawPosText((const char*) glyphs, bytesCount, glyphsCount, positions, paint);
810}
811
812static void android_view_GLES20Canvas_drawPosTextArray(JNIEnv* env, jobject clazz,
813        jlong rendererPtr, jcharArray text, jint index, jint count,
814        jfloatArray pos, jlong paintPtr) {
815    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
816    jchar* textArray = env->GetCharArrayElements(text, NULL);
817    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
818    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
819
820    renderPosText(renderer, textArray + index, count, positions, kBidi_LTR, paint);
821
822    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
823    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
824}
825
826static void android_view_GLES20Canvas_drawPosText(JNIEnv* env, jobject clazz,
827        jlong rendererPtr, jstring text, jint start, jint end,
828        jfloatArray pos, jlong paintPtr) {
829    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
830    const jchar* textArray = env->GetStringChars(text, NULL);
831    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
832    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
833
834    renderPosText(renderer, textArray + start, end - start, positions, kBidi_LTR, paint);
835
836    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
837    env->ReleaseStringChars(text, textArray);
838}
839
840// ----------------------------------------------------------------------------
841// Display lists
842// ----------------------------------------------------------------------------
843
844static jlong android_view_GLES20Canvas_finishRecording(JNIEnv* env,
845        jobject clazz, jlong rendererPtr) {
846    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
847    return reinterpret_cast<jlong>(renderer->finishRecording());
848}
849
850static jlong android_view_GLES20Canvas_createDisplayListRenderer(JNIEnv* env, jobject clazz) {
851    return reinterpret_cast<jlong>(new DisplayListRenderer);
852}
853
854static jint android_view_GLES20Canvas_drawDisplayList(JNIEnv* env,
855        jobject clazz, jlong rendererPtr, jlong displayListPtr,
856        jobject dirty, jint flags) {
857    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
858    RenderNode* displayList = reinterpret_cast<RenderNode*>(displayListPtr);
859    android::uirenderer::Rect bounds;
860    status_t status = renderer->drawDisplayList(displayList, bounds, flags);
861    if (status != DrawGlInfo::kStatusDone && dirty != NULL) {
862        env->CallVoidMethod(dirty, gRectClassInfo.set,
863                int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
864    }
865    return status;
866}
867
868// ----------------------------------------------------------------------------
869// Layers
870// ----------------------------------------------------------------------------
871
872static void android_view_GLES20Canvas_drawLayer(JNIEnv* env, jobject clazz,
873        jlong rendererPtr, jlong layerPtr, jfloat x, jfloat y) {
874    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
875    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
876    renderer->drawLayer(layer, x, y);
877}
878
879#endif // USE_OPENGL_RENDERER
880
881// ----------------------------------------------------------------------------
882// Common
883// ----------------------------------------------------------------------------
884
885static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) {
886#ifdef USE_OPENGL_RENDERER
887    char prop[PROPERTY_VALUE_MAX];
888    if (property_get("ro.kernel.qemu", prop, NULL) == 0) {
889        // not in the emulator
890        return JNI_TRUE;
891    }
892    // In the emulator this property will be set to 1 when hardware GLES is
893    // enabled, 0 otherwise. On old emulator versions it will be undefined.
894    property_get("ro.kernel.qemu.gles", prop, "0");
895    return atoi(prop) == 1 ? JNI_TRUE : JNI_FALSE;
896#else
897    return JNI_FALSE;
898#endif
899}
900
901// ----------------------------------------------------------------------------
902// Logging
903// ----------------------------------------------------------------------------
904
905static void
906android_app_ActivityThread_dumpGraphics(JNIEnv* env, jobject clazz, jobject javaFileDescriptor) {
907#ifdef USE_OPENGL_RENDERER
908    int fd = jniGetFDFromFileDescriptor(env, javaFileDescriptor);
909    android::uirenderer::RenderNode::outputLogBuffer(fd);
910#endif // USE_OPENGL_RENDERER
911}
912
913// ----------------------------------------------------------------------------
914// JNI Glue
915// ----------------------------------------------------------------------------
916
917const char* const kClassPathName = "android/view/GLES20Canvas";
918
919static JNINativeMethod gMethods[] = {
920    { "nIsAvailable",       "()Z",             (void*) android_view_GLES20Canvas_isAvailable },
921
922#ifdef USE_OPENGL_RENDERER
923
924    { "nDestroyRenderer",   "(J)V",            (void*) android_view_GLES20Canvas_destroyRenderer },
925    { "nSetViewport",       "(JII)V",          (void*) android_view_GLES20Canvas_setViewport },
926    { "nPrepare",           "(JZ)I",           (void*) android_view_GLES20Canvas_prepare },
927    { "nPrepareDirty",      "(JIIIIZ)I",       (void*) android_view_GLES20Canvas_prepareDirty },
928    { "nFinish",            "(J)V",            (void*) android_view_GLES20Canvas_finish },
929    { "nSetProperty",           "(Ljava/lang/String;Ljava/lang/String;)V",
930            (void*) android_view_GLES20Canvas_setProperty },
931
932    { "nCallDrawGLFunction", "(JJ)I",          (void*) android_view_GLES20Canvas_callDrawGLFunction },
933
934    { "nSave",              "(JI)I",           (void*) android_view_GLES20Canvas_save },
935    { "nRestore",           "(J)V",            (void*) android_view_GLES20Canvas_restore },
936    { "nRestoreToCount",    "(JI)V",           (void*) android_view_GLES20Canvas_restoreToCount },
937    { "nGetSaveCount",      "(J)I",            (void*) android_view_GLES20Canvas_getSaveCount },
938
939    { "nSaveLayer",         "(JFFFFJI)I",      (void*) android_view_GLES20Canvas_saveLayer },
940    { "nSaveLayer",         "(JJI)I",          (void*) android_view_GLES20Canvas_saveLayerClip },
941    { "nSaveLayerAlpha",    "(JFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayerAlpha },
942    { "nSaveLayerAlpha",    "(JII)I",          (void*) android_view_GLES20Canvas_saveLayerAlphaClip },
943
944    { "nQuickReject",       "(JFFFF)Z",        (void*) android_view_GLES20Canvas_quickReject },
945    { "nClipRect",          "(JFFFFI)Z",       (void*) android_view_GLES20Canvas_clipRectF },
946    { "nClipRect",          "(JIIIII)Z",       (void*) android_view_GLES20Canvas_clipRect },
947    { "nClipPath",          "(JJI)Z",          (void*) android_view_GLES20Canvas_clipPath },
948    { "nClipRegion",        "(JJI)Z",          (void*) android_view_GLES20Canvas_clipRegion },
949
950    { "nTranslate",         "(JFF)V",          (void*) android_view_GLES20Canvas_translate },
951    { "nRotate",            "(JF)V",           (void*) android_view_GLES20Canvas_rotate },
952    { "nScale",             "(JFF)V",          (void*) android_view_GLES20Canvas_scale },
953    { "nSkew",              "(JFF)V",          (void*) android_view_GLES20Canvas_skew },
954
955    { "nSetMatrix",         "(JJ)V",           (void*) android_view_GLES20Canvas_setMatrix },
956    { "nGetMatrix",         "(JJ)V",           (void*) android_view_GLES20Canvas_getMatrix },
957    { "nConcatMatrix",      "(JJ)V",           (void*) android_view_GLES20Canvas_concatMatrix },
958
959    { "nDrawBitmap",        "(JJ[BFFJ)V",      (void*) android_view_GLES20Canvas_drawBitmap },
960    { "nDrawBitmap",        "(JJ[BFFFFFFFFJ)V",(void*) android_view_GLES20Canvas_drawBitmapRect },
961    { "nDrawBitmap",        "(JJ[BJJ)V",       (void*) android_view_GLES20Canvas_drawBitmapMatrix },
962    { "nDrawBitmap",        "(J[IIIFFIIZJ)V",  (void*) android_view_GLES20Canvas_drawBitmapData },
963
964    { "nDrawBitmapMesh",    "(JJ[BII[FI[IIJ)V",(void*) android_view_GLES20Canvas_drawBitmapMesh },
965
966    { "nDrawPatch",         "(JJ[BJFFFFJ)V",   (void*) android_view_GLES20Canvas_drawPatch },
967
968    { "nDrawColor",         "(JII)V",          (void*) android_view_GLES20Canvas_drawColor },
969    { "nDrawRect",          "(JFFFFJ)V",       (void*) android_view_GLES20Canvas_drawRect },
970    { "nDrawRects",         "(JJJ)V",          (void*) android_view_GLES20Canvas_drawRegionAsRects },
971    { "nDrawRoundRect",     "(JFFFFFFJ)V",     (void*) android_view_GLES20Canvas_drawRoundRect },
972    { "nDrawCircle",        "(JFFFJ)V",        (void*) android_view_GLES20Canvas_drawCircle },
973    { "nDrawCircle",        "(JJJJJ)V",        (void*) android_view_GLES20Canvas_drawCircleProps },
974    { "nDrawOval",          "(JFFFFJ)V",       (void*) android_view_GLES20Canvas_drawOval },
975    { "nDrawArc",           "(JFFFFFFZJ)V",    (void*) android_view_GLES20Canvas_drawArc },
976    { "nDrawPoints",        "(J[FIIJ)V",       (void*) android_view_GLES20Canvas_drawPoints },
977
978    { "nDrawPath",          "(JJJ)V",          (void*) android_view_GLES20Canvas_drawPath },
979    { "nDrawLines",         "(J[FIIJ)V",       (void*) android_view_GLES20Canvas_drawLines },
980
981    { "nSetupPaintFilter",  "(JII)V",          (void*) android_view_GLES20Canvas_setupPaintFilter },
982    { "nResetPaintFilter",  "(J)V",            (void*) android_view_GLES20Canvas_resetPaintFilter },
983
984    { "nDrawText",          "(J[CIIFFIJJ)V",   (void*) android_view_GLES20Canvas_drawTextArray },
985    { "nDrawText",          "(JLjava/lang/String;IIFFIJJ)V",
986            (void*) android_view_GLES20Canvas_drawText },
987
988    { "nDrawTextOnPath",    "(J[CIIJFFIJ)V",   (void*) android_view_GLES20Canvas_drawTextArrayOnPath },
989    { "nDrawTextOnPath",    "(JLjava/lang/String;IIJFFIJ)V",
990            (void*) android_view_GLES20Canvas_drawTextOnPath },
991
992    { "nDrawTextRun",       "(J[CIIIIFFIJJ)V",  (void*) android_view_GLES20Canvas_drawTextRunArray },
993    { "nDrawTextRun",       "(JLjava/lang/String;IIIIFFIJJ)V",
994            (void*) android_view_GLES20Canvas_drawTextRun },
995
996    { "nDrawPosText",       "(J[CII[FJ)V",     (void*) android_view_GLES20Canvas_drawPosTextArray },
997    { "nDrawPosText",       "(JLjava/lang/String;II[FJ)V",
998            (void*) android_view_GLES20Canvas_drawPosText },
999
1000    { "nGetClipBounds",     "(JLandroid/graphics/Rect;)Z",
1001            (void*) android_view_GLES20Canvas_getClipBounds },
1002
1003    { "nFinishRecording",        "(J)J",      (void*) android_view_GLES20Canvas_finishRecording },
1004    { "nDrawDisplayList",        "(JJLandroid/graphics/Rect;I)I",
1005            (void*) android_view_GLES20Canvas_drawDisplayList },
1006
1007    { "nCreateDisplayListRenderer", "()J",     (void*) android_view_GLES20Canvas_createDisplayListRenderer },
1008
1009    { "nDrawLayer",              "(JJFF)V",    (void*) android_view_GLES20Canvas_drawLayer },
1010
1011    { "nGetMaximumTextureWidth",  "()I",       (void*) android_view_GLES20Canvas_getMaxTextureWidth },
1012    { "nGetMaximumTextureHeight", "()I",       (void*) android_view_GLES20Canvas_getMaxTextureHeight },
1013
1014#endif
1015};
1016
1017static JNINativeMethod gActivityThreadMethods[] = {
1018    { "dumpGraphicsInfo",        "(Ljava/io/FileDescriptor;)V",
1019                                               (void*) android_app_ActivityThread_dumpGraphics }
1020};
1021
1022
1023#ifdef USE_OPENGL_RENDERER
1024    #define FIND_CLASS(var, className) \
1025            var = env->FindClass(className); \
1026            LOG_FATAL_IF(! var, "Unable to find class " className);
1027
1028    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
1029            var = env->GetMethodID(clazz, methodName, methodDescriptor); \
1030            LOG_FATAL_IF(! var, "Unable to find method " methodName);
1031#else
1032    #define FIND_CLASS(var, className)
1033    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor)
1034#endif
1035
1036int register_android_view_GLES20Canvas(JNIEnv* env) {
1037    jclass clazz;
1038    FIND_CLASS(clazz, "android/graphics/Rect");
1039    GET_METHOD_ID(gRectClassInfo.set, clazz, "set", "(IIII)V");
1040
1041    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
1042}
1043
1044const char* const kActivityThreadPathName = "android/app/ActivityThread";
1045
1046int register_android_app_ActivityThread(JNIEnv* env) {
1047    return AndroidRuntime::registerNativeMethods(env, kActivityThreadPathName,
1048            gActivityThreadMethods, NELEM(gActivityThreadMethods));
1049}
1050
1051};
1052