android_view_GLES20Canvas.cpp revision 796475006f5d670e8383a2050f11719522437a43 
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_runtime/AndroidRuntime.h>
24
25#include <androidfw/ResourceTypes.h>
26
27#include <private/hwui/DrawGlInfo.h>
28
29#include <cutils/properties.h>
30
31#include <SkBitmap.h>
32#include <SkCanvas.h>
33#include <SkImageInfo.h>
34#include <SkMatrix.h>
35#include <SkPorterDuff.h>
36#include <SkRegion.h>
37#include <SkScalerContext.h>
38#include <SkTemplates.h>
39#include <SkXfermode.h>
40
41#include <DisplayListRenderer.h>
42#include <Rect.h>
43#include <RenderNode.h>
44#include <CanvasProperty.h>
45#include <Paint.h>
46
47#include "MinikinUtils.h"
48
49namespace android {
50
51using namespace uirenderer;
52
53/**
54 * Note: DisplayListRenderer JNI layer is generated and compiled only on supported
55 *       devices. This means all the logic must be compiled only when the
56 *       preprocessor variable USE_OPENGL_RENDERER is defined.
57 */
58#ifdef USE_OPENGL_RENDERER
59
60// ----------------------------------------------------------------------------
61// Defines
62// ----------------------------------------------------------------------------
63
64// Debug
65#define DEBUG_RENDERER 0
66
67// Debug
68#if DEBUG_RENDERER
69    #define RENDERER_LOGD(...) ALOGD(__VA_ARGS__)
70#else
71    #define RENDERER_LOGD(...)
72#endif
73
74// ----------------------------------------------------------------------------
75
76static struct {
77    jmethodID set;
78} gRectClassInfo;
79
80// ----------------------------------------------------------------------------
81// Constructors
82// ----------------------------------------------------------------------------
83
84static void android_view_GLES20Canvas_destroyRenderer(JNIEnv* env, jobject clazz,
85        jlong rendererPtr) {
86    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
87    RENDERER_LOGD("Destroy DisplayListRenderer");
88    delete renderer;
89}
90
91// ----------------------------------------------------------------------------
92// Setup
93// ----------------------------------------------------------------------------
94
95static void android_view_GLES20Canvas_setViewport(JNIEnv* env, jobject clazz,
96        jlong rendererPtr, jint width, jint height) {
97    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
98    renderer->setViewport(width, height);
99}
100
101static void android_view_GLES20Canvas_setHighContrastText(JNIEnv* env, jobject clazz,
102        jlong rendererPtr, jboolean highContrastText) {
103    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
104    renderer->setHighContrastText(highContrastText);
105}
106
107static int android_view_GLES20Canvas_prepare(JNIEnv* env, jobject clazz,
108        jlong rendererPtr, jboolean opaque) {
109    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
110    return renderer->prepare(opaque);
111}
112
113static int android_view_GLES20Canvas_prepareDirty(JNIEnv* env, jobject clazz,
114        jlong rendererPtr, jint left, jint top, jint right, jint bottom,
115        jboolean opaque) {
116    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
117    return renderer->prepareDirty(left, top, right, bottom, opaque);
118}
119
120static void android_view_GLES20Canvas_finish(JNIEnv* env, jobject clazz,
121        jlong rendererPtr) {
122    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
123    renderer->finish();
124}
125
126static void android_view_GLES20Canvas_setProperty(JNIEnv* env,
127        jobject clazz, jstring name, jstring value) {
128    if (!Caches::hasInstance()) {
129        ALOGW("can't set property, no Caches instance");
130        return;
131    }
132
133    if (name == NULL || value == NULL) {
134        ALOGW("can't set prop, null passed");
135    }
136
137    const char* nameCharArray = env->GetStringUTFChars(name, NULL);
138    const char* valueCharArray = env->GetStringUTFChars(value, NULL);
139    Caches::getInstance().setTempProperty(nameCharArray, valueCharArray);
140    env->ReleaseStringUTFChars(name, nameCharArray);
141    env->ReleaseStringUTFChars(name, valueCharArray);
142}
143
144// ----------------------------------------------------------------------------
145// Functor
146// ----------------------------------------------------------------------------
147
148static jint android_view_GLES20Canvas_callDrawGLFunction(JNIEnv* env, jobject clazz,
149        jlong rendererPtr, jlong functorPtr) {
150    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
151    Functor* functor = reinterpret_cast<Functor*>(functorPtr);
152    android::uirenderer::Rect dirty;
153    return renderer->callDrawGLFunction(functor, dirty);
154}
155
156// ----------------------------------------------------------------------------
157// Misc
158// ----------------------------------------------------------------------------
159
160static jint android_view_GLES20Canvas_getMaxTextureWidth(JNIEnv* env, jobject clazz) {
161    return Caches::getInstance().maxTextureSize;
162}
163
164static jint android_view_GLES20Canvas_getMaxTextureHeight(JNIEnv* env, jobject clazz) {
165    return Caches::getInstance().maxTextureSize;
166}
167
168// ----------------------------------------------------------------------------
169// State
170// ----------------------------------------------------------------------------
171
172static jint android_view_GLES20Canvas_save(JNIEnv* env, jobject clazz, jlong rendererPtr,
173        jint flags) {
174    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
175    return renderer->save(flags);
176}
177
178static jint android_view_GLES20Canvas_getSaveCount(JNIEnv* env, jobject clazz,
179        jlong rendererPtr) {
180    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
181    return renderer->getSaveCount();
182}
183
184static void android_view_GLES20Canvas_restore(JNIEnv* env, jobject clazz,
185        jlong rendererPtr) {
186    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
187    renderer->restore();
188}
189
190static void android_view_GLES20Canvas_restoreToCount(JNIEnv* env, jobject clazz,
191        jlong rendererPtr, jint saveCount) {
192    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
193    renderer->restoreToCount(saveCount);
194}
195
196// ----------------------------------------------------------------------------
197// Layers
198// ----------------------------------------------------------------------------
199
200static jint android_view_GLES20Canvas_saveLayer(JNIEnv* env, jobject clazz,
201        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
202        jlong paintPtr, jint saveFlags) {
203    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
204    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
205    return renderer->saveLayer(left, top, right, bottom, paint, saveFlags);
206}
207
208static jint android_view_GLES20Canvas_saveLayerClip(JNIEnv* env, jobject clazz,
209        jlong rendererPtr, jlong paintPtr, jint saveFlags) {
210    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
211    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
212    const android::uirenderer::Rect& bounds(renderer->getLocalClipBounds());
213    return renderer->saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom,
214            paint, saveFlags);
215}
216
217static jint android_view_GLES20Canvas_saveLayerAlpha(JNIEnv* env, jobject clazz,
218        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
219        jint alpha, jint saveFlags) {
220    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
221    return renderer->saveLayerAlpha(left, top, right, bottom, alpha, saveFlags);
222}
223
224static jint android_view_GLES20Canvas_saveLayerAlphaClip(JNIEnv* env, jobject clazz,
225        jlong rendererPtr, jint alpha, jint saveFlags) {
226    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
227    const android::uirenderer::Rect& bounds(renderer->getLocalClipBounds());
228    return renderer->saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom,
229            alpha, saveFlags);
230}
231
232// ----------------------------------------------------------------------------
233// Clipping
234// ----------------------------------------------------------------------------
235
236static jboolean android_view_GLES20Canvas_quickReject(JNIEnv* env, jobject clazz,
237        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom) {
238    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
239    const bool result = renderer->quickRejectConservative(left, top, right, bottom);
240    return result ? JNI_TRUE : JNI_FALSE;
241}
242
243static jboolean android_view_GLES20Canvas_clipRectF(JNIEnv* env, jobject clazz,
244        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
245        jint op) {
246    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
247    const bool result = renderer->clipRect(left, top, right, bottom,
248                                           static_cast<SkRegion::Op>(op));
249    return result ? JNI_TRUE : JNI_FALSE;
250}
251
252static jboolean android_view_GLES20Canvas_clipRect(JNIEnv* env, jobject clazz,
253        jlong rendererPtr, jint left, jint top, jint right, jint bottom,
254        jint op) {
255    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
256    const bool result = renderer->clipRect(float(left), float(top), float(right),
257                                           float(bottom),
258                                           static_cast<SkRegion::Op>(op));
259    return result ? JNI_TRUE : JNI_FALSE;
260}
261
262static jboolean android_view_GLES20Canvas_clipPath(JNIEnv* env, jobject clazz,
263        jlong rendererPtr, jlong pathPtr, jint op) {
264    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
265    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
266    const bool result = renderer->clipPath(path, static_cast<SkRegion::Op>(op));
267    return result ? JNI_TRUE : JNI_FALSE;
268}
269
270static jboolean android_view_GLES20Canvas_clipRegion(JNIEnv* env, jobject clazz,
271        jlong rendererPtr, jlong regionPtr, jint op) {
272    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
273    SkRegion* region = reinterpret_cast<SkRegion*>(regionPtr);
274    const bool result = renderer->clipRegion(region, static_cast<SkRegion::Op>(op));
275    return result ? JNI_TRUE : JNI_FALSE;
276}
277
278static jboolean android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject clazz,
279        jlong rendererPtr, jobject rect) {
280    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
281    const android::uirenderer::Rect& bounds(renderer->getLocalClipBounds());
282
283    env->CallVoidMethod(rect, gRectClassInfo.set,
284            int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
285
286    return !bounds.isEmpty() ? JNI_TRUE : JNI_FALSE;
287}
288
289// ----------------------------------------------------------------------------
290// Transforms
291// ----------------------------------------------------------------------------
292
293static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject clazz,
294        jlong rendererPtr, jfloat dx, jfloat dy) {
295    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
296    renderer->translate(dx, dy);
297}
298
299static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject clazz,
300        jlong rendererPtr, jfloat degrees) {
301    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
302    renderer->rotate(degrees);
303}
304
305static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject clazz,
306        jlong rendererPtr, jfloat sx, jfloat sy) {
307    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
308    renderer->scale(sx, sy);
309}
310
311static void android_view_GLES20Canvas_skew(JNIEnv* env, jobject clazz,
312        jlong rendererPtr, jfloat sx, jfloat sy) {
313    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
314    renderer->skew(sx, sy);
315}
316
317static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject clazz,
318        jlong rendererPtr, jlong matrixPtr) {
319    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
320    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
321    renderer->setMatrix(matrix ? *matrix : SkMatrix::I());
322}
323
324static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject clazz,
325        jlong rendererPtr, jlong matrixPtr) {
326    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
327    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
328    renderer->getMatrix(matrix);
329}
330
331static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject clazz,
332        jlong rendererPtr, jlong matrixPtr) {
333    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
334    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
335    renderer->concatMatrix(*matrix);
336}
337
338// ----------------------------------------------------------------------------
339// Drawing
340// ----------------------------------------------------------------------------
341
342static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject clazz,
343        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
344        jfloat left, jfloat top, jlong paintPtr) {
345    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
346    // This object allows the renderer to allocate a global JNI ref to the buffer object.
347    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
348
349    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
350    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
351
352    // apply transform directly to canvas, so it affects shaders correctly
353    renderer->save(SkCanvas::kMatrix_SaveFlag);
354    renderer->translate(left, top);
355    renderer->drawBitmap(bitmap, paint);
356    renderer->restore();
357}
358
359static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject clazz,
360        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
361        float srcLeft, float srcTop, float srcRight, float srcBottom,
362        float dstLeft, float dstTop, float dstRight, float dstBottom, jlong paintPtr) {
363    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
364    // This object allows the renderer to allocate a global JNI ref to the buffer object.
365    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
366
367    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
368    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
369    renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom,
370            dstLeft, dstTop, dstRight, dstBottom, paint);
371}
372
373static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject clazz,
374        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
375        jlong matrixPtr, jlong paintPtr) {
376    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
377    // This object allows the renderer to allocate a global JNI ref to the buffer object.
378    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
379
380    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
381    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
382    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
383
384    // apply transform directly to canvas, so it affects shaders correctly
385    renderer->save(SkCanvas::kMatrix_SaveFlag);
386    renderer->concatMatrix(*matrix);
387    renderer->drawBitmap(bitmap, paint);
388    renderer->restore();
389}
390
391static void android_view_GLES20Canvas_drawBitmapData(JNIEnv* env, jobject clazz,
392        jlong rendererPtr, jintArray colors, jint offset, jint stride,
393        jfloat left, jfloat top, jint width, jint height, jboolean hasAlpha, jlong paintPtr) {
394    // Note: If hasAlpha is false, kRGB_565_SkColorType will be used, which will
395    // correct the alphaType to kOpaque_SkAlphaType.
396    const SkImageInfo info = SkImageInfo::Make(width, height,
397                               hasAlpha ? kN32_SkColorType : kRGB_565_SkColorType,
398                               kPremul_SkAlphaType);
399    SkBitmap* bitmap = new SkBitmap;
400    if (!bitmap->allocPixels(info)) {
401        delete bitmap;
402        return;
403    }
404
405    if (!GraphicsJNI::SetPixels(env, colors, offset, stride, 0, 0, width, height, *bitmap)) {
406        delete bitmap;
407        return;
408    }
409
410    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
411    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
412
413    // apply transform directly to canvas, so it affects shaders correctly
414    renderer->save(SkCanvas::kMatrix_SaveFlag);
415    renderer->translate(left, top);
416    renderer->drawBitmapData(bitmap, paint);
417    renderer->restore();
418
419    // Note - bitmap isn't deleted as DisplayListRenderer owns it now
420}
421
422static void android_view_GLES20Canvas_drawBitmapMesh(JNIEnv* env, jobject clazz,
423        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
424        jint meshWidth, jint meshHeight, jfloatArray vertices, jint offset, jintArray colors,
425        jint colorOffset, jlong paintPtr) {
426    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
427    // This object allows the renderer to allocate a global JNI ref to the buffer object.
428    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
429
430    jfloat* verticesArray = vertices ? env->GetFloatArrayElements(vertices, NULL) + offset : NULL;
431    jint* colorsArray = colors ? env->GetIntArrayElements(colors, NULL) + colorOffset : NULL;
432
433    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
434    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
435    renderer->drawBitmapMesh(bitmap, meshWidth, meshHeight, verticesArray, colorsArray, paint);
436
437    if (vertices) env->ReleaseFloatArrayElements(vertices, verticesArray, 0);
438    if (colors) env->ReleaseIntArrayElements(colors, colorsArray, 0);
439}
440
441static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject clazz,
442        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer, jlong patchPtr,
443        float left, float top, float right, float bottom, jlong paintPtr) {
444    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
445    // This object allows the renderer to allocate a global JNI ref to the buffer object.
446    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
447
448    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
449    Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(patchPtr);
450    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
451    renderer->drawPatch(bitmap, patch, left, top, right, bottom, paint);
452}
453
454static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject clazz,
455        jlong rendererPtr, jint color, jint modeHandle) {
456    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
457    SkPorterDuff::Mode mode = static_cast<SkPorterDuff::Mode>(modeHandle);
458    renderer->drawColor(color, SkPorterDuff::ToXfermodeMode(mode));
459}
460
461static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject clazz,
462        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
463        jlong paintPtr) {
464    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
465    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
466    renderer->drawRect(left, top, right, bottom, paint);
467}
468
469static void android_view_GLES20Canvas_drawRoundRect(JNIEnv* env, jobject clazz,
470        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
471        jfloat rx, jfloat ry, jlong paintPtr) {
472    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
473    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
474    renderer->drawRoundRect(left, top, right, bottom, rx, ry, paint);
475}
476
477static void android_view_GLES20Canvas_drawCircle(JNIEnv* env, jobject clazz,
478        jlong rendererPtr, jfloat x, jfloat y, jfloat radius, jlong paintPtr) {
479    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
480    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
481    renderer->drawCircle(x, y, radius, paint);
482}
483
484static void android_view_GLES20Canvas_drawCircleProps(JNIEnv* env, jobject clazz,
485        jlong rendererPtr, jlong xPropPtr, jlong yPropPtr, jlong radiusPropPtr, jlong paintPropPtr) {
486    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
487    CanvasPropertyPrimitive* xProp = reinterpret_cast<CanvasPropertyPrimitive*>(xPropPtr);
488    CanvasPropertyPrimitive* yProp = reinterpret_cast<CanvasPropertyPrimitive*>(yPropPtr);
489    CanvasPropertyPrimitive* radiusProp = reinterpret_cast<CanvasPropertyPrimitive*>(radiusPropPtr);
490    CanvasPropertyPaint* paintProp = reinterpret_cast<CanvasPropertyPaint*>(paintPropPtr);
491    renderer->drawCircle(xProp, yProp, radiusProp, paintProp);
492}
493
494static void android_view_GLES20Canvas_drawOval(JNIEnv* env, jobject clazz,
495        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
496        jlong paintPtr) {
497    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
498    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
499    renderer->drawOval(left, top, right, bottom, paint);
500}
501
502static void android_view_GLES20Canvas_drawArc(JNIEnv* env, jobject clazz,
503        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
504        jfloat startAngle, jfloat sweepAngle, jboolean useCenter, jlong paintPtr) {
505    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
506    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
507    renderer->drawArc(left, top, right, bottom, startAngle, sweepAngle, useCenter, paint);
508}
509
510static void android_view_GLES20Canvas_drawRegionAsRects(JNIEnv* env, jobject clazz,
511        jlong rendererPtr, jlong regionPtr, jlong paintPtr) {
512    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
513    SkRegion* region = reinterpret_cast<SkRegion*>(regionPtr);
514    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
515    if (paint->getStyle() != Paint::kFill_Style ||
516            (paint->isAntiAlias() && !renderer->isCurrentTransformSimple())) {
517        SkRegion::Iterator it(*region);
518        while (!it.done()) {
519            const SkIRect& r = it.rect();
520            renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint);
521            it.next();
522        }
523    } else {
524        int count = 0;
525        Vector<float> rects;
526        SkRegion::Iterator it(*region);
527        while (!it.done()) {
528            const SkIRect& r = it.rect();
529            rects.push(r.fLeft);
530            rects.push(r.fTop);
531            rects.push(r.fRight);
532            rects.push(r.fBottom);
533            count += 4;
534            it.next();
535        }
536        renderer->drawRects(rects.array(), count, paint);
537    }
538}
539
540static void android_view_GLES20Canvas_drawPoints(JNIEnv* env, jobject clazz,
541        jlong rendererPtr, jfloatArray points, jint offset, jint count, jlong paintPtr) {
542    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
543    jfloat* storage = env->GetFloatArrayElements(points, NULL);
544    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
545    renderer->drawPoints(storage + offset, count, paint);
546    env->ReleaseFloatArrayElements(points, storage, 0);
547}
548
549static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject clazz,
550        jlong rendererPtr, jlong pathPtr, jlong paintPtr) {
551    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
552    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
553    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
554    renderer->drawPath(path, paint);
555}
556
557static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject clazz,
558        jlong rendererPtr, jfloatArray points, jint offset, jint count, jlong paintPtr) {
559    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
560    jfloat* storage = env->GetFloatArrayElements(points, NULL);
561    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
562    renderer->drawLines(storage + offset, count, paint);
563    env->ReleaseFloatArrayElements(points, storage, 0);
564}
565
566// ----------------------------------------------------------------------------
567// Draw filters
568// ----------------------------------------------------------------------------
569
570static void android_view_GLES20Canvas_setupPaintFilter(JNIEnv* env, jobject clazz,
571        jlong rendererPtr, jint clearBits, jint setBits) {
572    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
573    renderer->setupPaintFilter(clearBits, setBits);
574}
575
576static void android_view_GLES20Canvas_resetPaintFilter(JNIEnv* env, jobject clazz,
577        jlong rendererPtr) {
578    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
579    renderer->resetPaintFilter();
580}
581
582// ----------------------------------------------------------------------------
583// Text
584// ----------------------------------------------------------------------------
585
586class RenderTextFunctor {
587public:
588    RenderTextFunctor(const Layout& layout, DisplayListRenderer* renderer, jfloat x, jfloat y,
589                Paint* paint, uint16_t* glyphs, float* pos, float totalAdvance,
590                uirenderer::Rect& bounds)
591            : layout(layout), renderer(renderer), x(x), y(y), paint(paint), glyphs(glyphs),
592            pos(pos), totalAdvance(totalAdvance), bounds(bounds) { }
593    void operator()(size_t start, size_t end) {
594        for (size_t i = start; i < end; i++) {
595            glyphs[i] = layout.getGlyphId(i);
596            pos[2 * i] = layout.getX(i);
597            pos[2 * i + 1] = layout.getY(i);
598        }
599        size_t glyphsCount = end - start;
600        int bytesCount = glyphsCount * sizeof(jchar);
601        renderer->drawText((const char*) (glyphs + start), bytesCount, glyphsCount,
602            x, y, pos + 2 * start, paint, totalAdvance, bounds);
603    }
604private:
605    const Layout& layout;
606    DisplayListRenderer* renderer;
607    jfloat x;
608    jfloat y;
609    Paint* paint;
610    uint16_t* glyphs;
611    float* pos;
612    float totalAdvance;
613    uirenderer::Rect& bounds;
614};
615
616static void renderTextLayout(DisplayListRenderer* renderer, Layout* layout,
617    jfloat x, jfloat y, Paint* paint) {
618    size_t nGlyphs = layout->nGlyphs();
619    float* pos = new float[nGlyphs * 2];
620    uint16_t* glyphs = new uint16_t[nGlyphs];
621    MinikinRect b;
622    layout->getBounds(&b);
623    android::uirenderer::Rect bounds(b.mLeft, b.mTop, b.mRight, b.mBottom);
624    bounds.translate(x, y);
625    float totalAdvance = layout->getAdvance();
626
627    RenderTextFunctor f(*layout, renderer, x, y, paint, glyphs, pos, totalAdvance, bounds);
628    MinikinUtils::forFontRun(*layout, paint, f);
629    delete[] glyphs;
630    delete[] pos;
631}
632
633static void renderText(DisplayListRenderer* renderer, const jchar* text, int count,
634        jfloat x, jfloat y, int bidiFlags, Paint* paint, TypefaceImpl* typeface) {
635    Layout layout;
636    MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, text, 0, count, count);
637    x += MinikinUtils::xOffsetForTextAlign(paint, layout);
638    renderTextLayout(renderer, &layout, x, y, paint);
639}
640
641class RenderTextOnPathFunctor {
642public:
643    RenderTextOnPathFunctor(const Layout& layout, DisplayListRenderer* renderer, float hOffset,
644                float vOffset, Paint* paint, SkPath* path)
645            : layout(layout), renderer(renderer), hOffset(hOffset), vOffset(vOffset),
646                paint(paint), path(path) {
647    }
648    void operator()(size_t start, size_t end) {
649        uint16_t glyphs[1];
650        for (size_t i = start; i < end; i++) {
651            glyphs[0] = layout.getGlyphId(i);
652            float x = hOffset + layout.getX(i);
653            float y = vOffset + layout.getY(i);
654            renderer->drawTextOnPath((const char*) glyphs, sizeof(glyphs), 1, path, x, y, paint);
655        }
656    }
657private:
658    const Layout& layout;
659    DisplayListRenderer* renderer;
660    float hOffset;
661    float vOffset;
662    Paint* paint;
663    SkPath* path;
664};
665
666static void renderTextOnPath(DisplayListRenderer* renderer, const jchar* text, int count,
667        SkPath* path, jfloat hOffset, jfloat vOffset, int bidiFlags, Paint* paint,
668        TypefaceImpl* typeface) {
669    Layout layout;
670    MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, text, 0, count, count);
671    hOffset += MinikinUtils::hOffsetForTextAlign(paint, layout, *path);
672    Paint::Align align = paint->getTextAlign();
673    paint->setTextAlign(Paint::kLeft_Align);
674
675    RenderTextOnPathFunctor f(layout, renderer, hOffset, vOffset, paint, path);
676    MinikinUtils::forFontRun(layout, paint, f);
677    paint->setTextAlign(align);
678}
679
680static void renderTextRun(DisplayListRenderer* renderer, const jchar* text,
681        jint start, jint count, jint contextCount, jfloat x, jfloat y,
682        int bidiFlags, Paint* paint, TypefaceImpl* typeface) {
683    Layout layout;
684    MinikinUtils::doLayout(&layout, paint, bidiFlags, typeface, text, start, count, contextCount);
685    x += MinikinUtils::xOffsetForTextAlign(paint, layout);
686    renderTextLayout(renderer, &layout, x, y, paint);
687}
688
689static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject clazz,
690        jlong rendererPtr, jcharArray text, jint index, jint count,
691        jfloat x, jfloat y, jint bidiFlags, jlong paintPtr, jlong typefacePtr) {
692    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
693    jchar* textArray = env->GetCharArrayElements(text, NULL);
694    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
695    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
696
697    renderText(renderer, textArray + index, count, x, y, bidiFlags, paint, typeface);
698    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
699}
700
701static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject clazz,
702        jlong rendererPtr, jstring text, jint start, jint end,
703        jfloat x, jfloat y, jint bidiFlags, jlong paintPtr, jlong typefacePtr) {
704    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
705    const jchar* textArray = env->GetStringChars(text, NULL);
706    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
707    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
708
709    renderText(renderer, textArray + start, end - start, x, y, bidiFlags, paint, typeface);
710    env->ReleaseStringChars(text, textArray);
711}
712
713static void android_view_GLES20Canvas_drawTextArrayOnPath(JNIEnv* env, jobject clazz,
714        jlong rendererPtr, jcharArray text, jint index, jint count,
715        jlong pathPtr, jfloat hOffset, jfloat vOffset, jint bidiFlags, jlong paintPtr,
716        jlong typefacePtr) {
717    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
718    jchar* textArray = env->GetCharArrayElements(text, NULL);
719    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
720    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
721    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
722
723    renderTextOnPath(renderer, textArray + index, count, path,
724            hOffset, vOffset, bidiFlags, paint, typeface);
725    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
726}
727
728static void android_view_GLES20Canvas_drawTextOnPath(JNIEnv* env, jobject clazz,
729        jlong rendererPtr, jstring text, jint start, jint end,
730        jlong pathPtr, jfloat hOffset, jfloat vOffset, jint bidiFlags, jlong paintPtr,
731        jlong typefacePtr) {
732    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
733    const jchar* textArray = env->GetStringChars(text, NULL);
734    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
735    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
736    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
737
738    renderTextOnPath(renderer, textArray + start, end - start, path,
739            hOffset, vOffset, bidiFlags, paint, typeface);
740    env->ReleaseStringChars(text, textArray);
741}
742
743static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject clazz,
744        jlong rendererPtr, jcharArray text, jint index, jint count,
745        jint contextIndex, jint contextCount, jfloat x, jfloat y, jboolean isRtl,
746        jlong paintPtr, jlong typefacePtr) {
747    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
748    jchar* textArray = env->GetCharArrayElements(text, NULL);
749    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
750    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
751
752    int bidiFlags = isRtl ? kBidi_Force_RTL : kBidi_Force_LTR;
753    renderTextRun(renderer, textArray + contextIndex, index - contextIndex,
754            count, contextCount, x, y, bidiFlags, paint, typeface);
755    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
756 }
757
758static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject clazz,
759        jlong rendererPtr, jstring text, jint start, jint end,
760        jint contextStart, int contextEnd, jfloat x, jfloat y, jboolean isRtl,
761        jlong paintPtr, jlong typefacePtr) {
762    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
763    const jchar* textArray = env->GetStringChars(text, NULL);
764    jint count = end - start;
765    jint contextCount = contextEnd - contextStart;
766    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
767    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
768
769    int bidiFlags = isRtl ? kBidi_Force_RTL : kBidi_Force_LTR;
770    renderTextRun(renderer, textArray + contextStart, start - contextStart,
771            count, contextCount, x, y, bidiFlags, paint, typeface);
772    env->ReleaseStringChars(text, textArray);
773}
774
775// ----------------------------------------------------------------------------
776// Display lists
777// ----------------------------------------------------------------------------
778
779static jlong android_view_GLES20Canvas_finishRecording(JNIEnv* env,
780        jobject clazz, jlong rendererPtr) {
781    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
782    return reinterpret_cast<jlong>(renderer->finishRecording());
783}
784
785static jlong android_view_GLES20Canvas_createDisplayListRenderer(JNIEnv* env, jobject clazz) {
786    return reinterpret_cast<jlong>(new DisplayListRenderer);
787}
788
789static jint android_view_GLES20Canvas_drawRenderNode(JNIEnv* env,
790        jobject clazz, jlong rendererPtr, jlong renderNodePtr,
791        jobject dirty, jint flags) {
792    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
793    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
794    android::uirenderer::Rect bounds;
795    status_t status = renderer->drawRenderNode(renderNode, bounds, flags);
796    if (status != DrawGlInfo::kStatusDone && dirty != NULL) {
797        env->CallVoidMethod(dirty, gRectClassInfo.set,
798                int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
799    }
800    return status;
801}
802
803// ----------------------------------------------------------------------------
804// Layers
805// ----------------------------------------------------------------------------
806
807static void android_view_GLES20Canvas_drawLayer(JNIEnv* env, jobject clazz,
808        jlong rendererPtr, jlong layerPtr, jfloat x, jfloat y) {
809    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
810    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
811    renderer->drawLayer(layer, x, y);
812}
813
814#endif // USE_OPENGL_RENDERER
815
816// ----------------------------------------------------------------------------
817// Common
818// ----------------------------------------------------------------------------
819
820static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) {
821#ifdef USE_OPENGL_RENDERER
822    char prop[PROPERTY_VALUE_MAX];
823    if (property_get("ro.kernel.qemu", prop, NULL) == 0) {
824        // not in the emulator
825        return JNI_TRUE;
826    }
827    // In the emulator this property will be set to 1 when hardware GLES is
828    // enabled, 0 otherwise. On old emulator versions it will be undefined.
829    property_get("ro.kernel.qemu.gles", prop, "0");
830    return atoi(prop) == 1 ? JNI_TRUE : JNI_FALSE;
831#else
832    return JNI_FALSE;
833#endif
834}
835
836// ----------------------------------------------------------------------------
837// Logging
838// ----------------------------------------------------------------------------
839
840static void
841android_app_ActivityThread_dumpGraphics(JNIEnv* env, jobject clazz, jobject javaFileDescriptor) {
842#ifdef USE_OPENGL_RENDERER
843    int fd = jniGetFDFromFileDescriptor(env, javaFileDescriptor);
844    android::uirenderer::RenderNode::outputLogBuffer(fd);
845#endif // USE_OPENGL_RENDERER
846}
847
848// ----------------------------------------------------------------------------
849// JNI Glue
850// ----------------------------------------------------------------------------
851
852const char* const kClassPathName = "android/view/GLES20Canvas";
853
854static JNINativeMethod gMethods[] = {
855    { "nIsAvailable",       "()Z",             (void*) android_view_GLES20Canvas_isAvailable },
856
857#ifdef USE_OPENGL_RENDERER
858
859    { "nDestroyRenderer",   "(J)V",            (void*) android_view_GLES20Canvas_destroyRenderer },
860    { "nSetViewport",       "(JII)V",          (void*) android_view_GLES20Canvas_setViewport },
861    { "nSetHighContrastText","(JZ)V",          (void*) android_view_GLES20Canvas_setHighContrastText },
862    { "nPrepare",           "(JZ)I",           (void*) android_view_GLES20Canvas_prepare },
863    { "nPrepareDirty",      "(JIIIIZ)I",       (void*) android_view_GLES20Canvas_prepareDirty },
864    { "nFinish",            "(J)V",            (void*) android_view_GLES20Canvas_finish },
865    { "nSetProperty",           "(Ljava/lang/String;Ljava/lang/String;)V",
866            (void*) android_view_GLES20Canvas_setProperty },
867
868    { "nCallDrawGLFunction", "(JJ)I",          (void*) android_view_GLES20Canvas_callDrawGLFunction },
869
870    { "nSave",              "(JI)I",           (void*) android_view_GLES20Canvas_save },
871    { "nRestore",           "(J)V",            (void*) android_view_GLES20Canvas_restore },
872    { "nRestoreToCount",    "(JI)V",           (void*) android_view_GLES20Canvas_restoreToCount },
873    { "nGetSaveCount",      "(J)I",            (void*) android_view_GLES20Canvas_getSaveCount },
874
875    { "nSaveLayer",         "(JFFFFJI)I",      (void*) android_view_GLES20Canvas_saveLayer },
876    { "nSaveLayer",         "(JJI)I",          (void*) android_view_GLES20Canvas_saveLayerClip },
877    { "nSaveLayerAlpha",    "(JFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayerAlpha },
878    { "nSaveLayerAlpha",    "(JII)I",          (void*) android_view_GLES20Canvas_saveLayerAlphaClip },
879
880    { "nQuickReject",       "(JFFFF)Z",        (void*) android_view_GLES20Canvas_quickReject },
881    { "nClipRect",          "(JFFFFI)Z",       (void*) android_view_GLES20Canvas_clipRectF },
882    { "nClipRect",          "(JIIIII)Z",       (void*) android_view_GLES20Canvas_clipRect },
883    { "nClipPath",          "(JJI)Z",          (void*) android_view_GLES20Canvas_clipPath },
884    { "nClipRegion",        "(JJI)Z",          (void*) android_view_GLES20Canvas_clipRegion },
885
886    { "nTranslate",         "(JFF)V",          (void*) android_view_GLES20Canvas_translate },
887    { "nRotate",            "(JF)V",           (void*) android_view_GLES20Canvas_rotate },
888    { "nScale",             "(JFF)V",          (void*) android_view_GLES20Canvas_scale },
889    { "nSkew",              "(JFF)V",          (void*) android_view_GLES20Canvas_skew },
890
891    { "nSetMatrix",         "(JJ)V",           (void*) android_view_GLES20Canvas_setMatrix },
892    { "nGetMatrix",         "(JJ)V",           (void*) android_view_GLES20Canvas_getMatrix },
893    { "nConcatMatrix",      "(JJ)V",           (void*) android_view_GLES20Canvas_concatMatrix },
894
895    { "nDrawBitmap",        "(JJ[BFFJ)V",      (void*) android_view_GLES20Canvas_drawBitmap },
896    { "nDrawBitmap",        "(JJ[BFFFFFFFFJ)V",(void*) android_view_GLES20Canvas_drawBitmapRect },
897    { "nDrawBitmap",        "(JJ[BJJ)V",       (void*) android_view_GLES20Canvas_drawBitmapMatrix },
898    { "nDrawBitmap",        "(J[IIIFFIIZJ)V",  (void*) android_view_GLES20Canvas_drawBitmapData },
899
900    { "nDrawBitmapMesh",    "(JJ[BII[FI[IIJ)V",(void*) android_view_GLES20Canvas_drawBitmapMesh },
901
902    { "nDrawPatch",         "(JJ[BJFFFFJ)V",   (void*) android_view_GLES20Canvas_drawPatch },
903
904    { "nDrawColor",         "(JII)V",          (void*) android_view_GLES20Canvas_drawColor },
905    { "nDrawRect",          "(JFFFFJ)V",       (void*) android_view_GLES20Canvas_drawRect },
906    { "nDrawRects",         "(JJJ)V",          (void*) android_view_GLES20Canvas_drawRegionAsRects },
907    { "nDrawRoundRect",     "(JFFFFFFJ)V",     (void*) android_view_GLES20Canvas_drawRoundRect },
908    { "nDrawCircle",        "(JFFFJ)V",        (void*) android_view_GLES20Canvas_drawCircle },
909    { "nDrawCircle",        "(JJJJJ)V",        (void*) android_view_GLES20Canvas_drawCircleProps },
910    { "nDrawOval",          "(JFFFFJ)V",       (void*) android_view_GLES20Canvas_drawOval },
911    { "nDrawArc",           "(JFFFFFFZJ)V",    (void*) android_view_GLES20Canvas_drawArc },
912    { "nDrawPoints",        "(J[FIIJ)V",       (void*) android_view_GLES20Canvas_drawPoints },
913
914    { "nDrawPath",          "(JJJ)V",          (void*) android_view_GLES20Canvas_drawPath },
915    { "nDrawLines",         "(J[FIIJ)V",       (void*) android_view_GLES20Canvas_drawLines },
916
917    { "nSetupPaintFilter",  "(JII)V",          (void*) android_view_GLES20Canvas_setupPaintFilter },
918    { "nResetPaintFilter",  "(J)V",            (void*) android_view_GLES20Canvas_resetPaintFilter },
919
920    { "nDrawText",          "(J[CIIFFIJJ)V",   (void*) android_view_GLES20Canvas_drawTextArray },
921    { "nDrawText",          "(JLjava/lang/String;IIFFIJJ)V",
922            (void*) android_view_GLES20Canvas_drawText },
923
924    { "nDrawTextOnPath",    "(J[CIIJFFIJJ)V",  (void*) android_view_GLES20Canvas_drawTextArrayOnPath },
925    { "nDrawTextOnPath",    "(JLjava/lang/String;IIJFFIJJ)V",
926            (void*) android_view_GLES20Canvas_drawTextOnPath },
927
928    { "nDrawTextRun",       "(J[CIIIIFFZJJ)V",  (void*) android_view_GLES20Canvas_drawTextRunArray },
929    { "nDrawTextRun",       "(JLjava/lang/String;IIIIFFZJJ)V",
930            (void*) android_view_GLES20Canvas_drawTextRun },
931
932    { "nGetClipBounds",     "(JLandroid/graphics/Rect;)Z", (void*) android_view_GLES20Canvas_getClipBounds },
933
934    { "nFinishRecording",   "(J)J",      (void*) android_view_GLES20Canvas_finishRecording },
935    { "nDrawRenderNode",    "(JJLandroid/graphics/Rect;I)I", (void*) android_view_GLES20Canvas_drawRenderNode },
936
937    { "nCreateDisplayListRenderer", "()J",     (void*) android_view_GLES20Canvas_createDisplayListRenderer },
938
939    { "nDrawLayer",              "(JJFF)V",    (void*) android_view_GLES20Canvas_drawLayer },
940
941    { "nGetMaximumTextureWidth",  "()I",       (void*) android_view_GLES20Canvas_getMaxTextureWidth },
942    { "nGetMaximumTextureHeight", "()I",       (void*) android_view_GLES20Canvas_getMaxTextureHeight },
943
944#endif
945};
946
947static JNINativeMethod gActivityThreadMethods[] = {
948    { "dumpGraphicsInfo",        "(Ljava/io/FileDescriptor;)V",
949                                               (void*) android_app_ActivityThread_dumpGraphics }
950};
951
952
953#ifdef USE_OPENGL_RENDERER
954    #define FIND_CLASS(var, className) \
955            var = env->FindClass(className); \
956            LOG_FATAL_IF(! var, "Unable to find class " className);
957
958    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
959            var = env->GetMethodID(clazz, methodName, methodDescriptor); \
960            LOG_FATAL_IF(! var, "Unable to find method " methodName);
961#else
962    #define FIND_CLASS(var, className)
963    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor)
964#endif
965
966int register_android_view_GLES20Canvas(JNIEnv* env) {
967    jclass clazz;
968    FIND_CLASS(clazz, "android/graphics/Rect");
969    GET_METHOD_ID(gRectClassInfo.set, clazz, "set", "(IIII)V");
970
971    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
972}
973
974const char* const kActivityThreadPathName = "android/app/ActivityThread";
975
976int register_android_app_ActivityThread(JNIEnv* env) {
977    return AndroidRuntime::registerNativeMethods(env, kActivityThreadPathName,
978            gActivityThreadMethods, NELEM(gActivityThreadMethods));
979}
980
981};
982