android_view_GLES20Canvas.cpp revision 1fc0fa87d42ce9268ece76b85b9edc834593e53a 
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()(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        size_t glyphsCount = end - start;
609        int bytesCount = glyphsCount * sizeof(jchar);
610        renderer->drawText((const char*) (glyphs + start), bytesCount, glyphsCount,
611            x, y, pos + 2 * start, paint, totalAdvance, bounds);
612    }
613private:
614    const Layout& layout;
615    OpenGLRenderer* renderer;
616    jfloat x;
617    jfloat y;
618    SkPaint* paint;
619    uint16_t* glyphs;
620    float* pos;
621    float totalAdvance;
622    uirenderer::Rect& bounds;
623};
624
625static void renderTextLayout(OpenGLRenderer* renderer, Layout* layout,
626    jfloat x, jfloat y, SkPaint* paint) {
627    size_t nGlyphs = layout->nGlyphs();
628    float* pos = new float[nGlyphs * 2];
629    uint16_t* glyphs = new uint16_t[nGlyphs];
630    MinikinRect b;
631    layout->getBounds(&b);
632    android::uirenderer::Rect bounds(b.mLeft, b.mTop, b.mRight, b.mBottom);
633    bounds.translate(x, y);
634    float totalAdvance = layout->getAdvance();
635
636    RenderTextFunctor f(*layout, renderer, x, y, paint, glyphs, pos, totalAdvance, bounds);
637    MinikinUtils::forFontRun(*layout, paint, f);
638    delete[] glyphs;
639    delete[] pos;
640}
641#endif
642
643static void renderText(OpenGLRenderer* renderer, const jchar* text, int count,
644        jfloat x, jfloat y, int flags, SkPaint* paint, TypefaceImpl* typeface) {
645#ifdef USE_MINIKIN
646    Layout layout;
647    std::string css = MinikinUtils::setLayoutProperties(&layout, paint, flags, typeface);
648    layout.doLayout(text, 0, count, count, css);
649    x += xOffsetForTextAlign(paint, layout.getAdvance());
650    renderTextLayout(renderer, &layout, x, y, paint);
651#else
652    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
653            text, 0, count, count, flags);
654    if (value == NULL) {
655        return;
656    }
657    const jchar* glyphs = value->getGlyphs();
658    size_t glyphsCount = value->getGlyphsCount();
659    jfloat totalAdvance = value->getTotalAdvance();
660    x += xOffsetForTextAlign(paint, totalAdvance);
661    const float* positions = value->getPos();
662    int bytesCount = glyphsCount * sizeof(jchar);
663    const SkRect& r = value->getBounds();
664    android::uirenderer::Rect bounds(r.fLeft, r.fTop, r.fRight, r.fBottom);
665    bounds.translate(x, y);
666
667    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount,
668            x, y, positions, paint, totalAdvance, bounds);
669#endif
670}
671
672static void renderTextOnPath(OpenGLRenderer* renderer, const jchar* text, int count,
673        SkPath* path, jfloat hOffset, jfloat vOffset, int flags, SkPaint* paint) {
674    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
675            text, 0, count, count, flags);
676    if (value == NULL) {
677        return;
678    }
679    const jchar* glyphs = value->getGlyphs();
680    size_t glyphsCount = value->getGlyphsCount();
681    int bytesCount = glyphsCount * sizeof(jchar);
682    renderer->drawTextOnPath((const char*) glyphs, bytesCount, glyphsCount, path,
683            hOffset, vOffset, paint);
684}
685
686static void renderTextRun(OpenGLRenderer* renderer, const jchar* text,
687        jint start, jint count, jint contextCount, jfloat x, jfloat y,
688        int flags, SkPaint* paint, TypefaceImpl* typeface) {
689#ifdef USE_MINIKIN
690    Layout layout;
691    std::string css = MinikinUtils::setLayoutProperties(&layout, paint, flags, typeface);
692    layout.doLayout(text, start, count, contextCount, css);
693    x += xOffsetForTextAlign(paint, layout.getAdvance());
694    renderTextLayout(renderer, &layout, x, y, paint);
695#else
696    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
697            text, start, count, contextCount, flags);
698    if (value == NULL) {
699        return;
700    }
701    const jchar* glyphs = value->getGlyphs();
702    size_t glyphsCount = value->getGlyphsCount();
703    jfloat totalAdvance = value->getTotalAdvance();
704    x += xOffsetForTextAlign(paint, totalAdvance);
705    const float* positions = value->getPos();
706    int bytesCount = glyphsCount * sizeof(jchar);
707    const SkRect& r = value->getBounds();
708    android::uirenderer::Rect bounds(r.fLeft, r.fTop, r.fRight, r.fBottom);
709    bounds.translate(x, y);
710
711    renderer->drawText((const char*) glyphs, bytesCount, glyphsCount,
712            x, y, positions, paint, totalAdvance, bounds);
713#endif
714}
715
716static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject clazz,
717        jlong rendererPtr, jcharArray text, jint index, jint count,
718        jfloat x, jfloat y, jint flags, jlong paintPtr, jlong typefacePtr) {
719    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
720    jchar* textArray = env->GetCharArrayElements(text, NULL);
721    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
722    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
723
724    renderText(renderer, textArray + index, count, x, y, flags, paint, typeface);
725    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
726}
727
728static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject clazz,
729        jlong rendererPtr, jstring text, jint start, jint end,
730        jfloat x, jfloat y, jint flags, jlong paintPtr, jlong typefacePtr) {
731    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
732    const jchar* textArray = env->GetStringChars(text, NULL);
733    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
734    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
735
736    renderText(renderer, textArray + start, end - start, x, y, flags, paint, typeface);
737    env->ReleaseStringChars(text, textArray);
738}
739
740static void android_view_GLES20Canvas_drawTextArrayOnPath(JNIEnv* env, jobject clazz,
741        jlong rendererPtr, jcharArray text, jint index, jint count,
742        jlong pathPtr, jfloat hOffset, jfloat vOffset, jint flags, jlong paintPtr) {
743    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
744    jchar* textArray = env->GetCharArrayElements(text, NULL);
745    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
746    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
747
748    renderTextOnPath(renderer, textArray + index, count, path,
749            hOffset, vOffset, flags, paint);
750    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
751}
752
753static void android_view_GLES20Canvas_drawTextOnPath(JNIEnv* env, jobject clazz,
754        jlong rendererPtr, jstring text, jint start, jint end,
755        jlong pathPtr, jfloat hOffset, jfloat vOffset, jint flags, jlong paintPtr) {
756    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
757    const jchar* textArray = env->GetStringChars(text, NULL);
758    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
759    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
760
761    renderTextOnPath(renderer, textArray + start, end - start, path,
762            hOffset, vOffset, flags, paint);
763    env->ReleaseStringChars(text, textArray);
764}
765
766static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject clazz,
767        jlong rendererPtr, jcharArray text, jint index, jint count,
768        jint contextIndex, jint contextCount, jfloat x, jfloat y, jint dirFlags,
769        jlong paintPtr, jlong typefacePtr) {
770    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
771    jchar* textArray = env->GetCharArrayElements(text, NULL);
772    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
773    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
774
775    renderTextRun(renderer, textArray + contextIndex, index - contextIndex,
776            count, contextCount, x, y, dirFlags, paint, typeface);
777    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
778 }
779
780static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject clazz,
781        jlong rendererPtr, jstring text, jint start, jint end,
782        jint contextStart, int contextEnd, jfloat x, jfloat y, jint dirFlags,
783        jlong paintPtr, jlong typefacePtr) {
784    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
785    const jchar* textArray = env->GetStringChars(text, NULL);
786    jint count = end - start;
787    jint contextCount = contextEnd - contextStart;
788    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
789    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
790
791    renderTextRun(renderer, textArray + contextStart, start - contextStart,
792            count, contextCount, x, y, dirFlags, paint, typeface);
793    env->ReleaseStringChars(text, textArray);
794}
795
796static void renderPosText(OpenGLRenderer* renderer, const jchar* text, int count,
797        const jfloat* positions, jint dirFlags, SkPaint* paint) {
798    sp<TextLayoutValue> value = TextLayoutEngine::getInstance().getValue(paint,
799            text, 0, count, count, dirFlags);
800    if (value == NULL) {
801        return;
802    }
803    const jchar* glyphs = value->getGlyphs();
804    size_t glyphsCount = value->getGlyphsCount();
805    if (count < int(glyphsCount)) glyphsCount = count;
806    int bytesCount = glyphsCount * sizeof(jchar);
807
808    renderer->drawPosText((const char*) glyphs, bytesCount, glyphsCount, positions, paint);
809}
810
811static void android_view_GLES20Canvas_drawPosTextArray(JNIEnv* env, jobject clazz,
812        jlong rendererPtr, jcharArray text, jint index, jint count,
813        jfloatArray pos, jlong paintPtr) {
814    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
815    jchar* textArray = env->GetCharArrayElements(text, NULL);
816    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
817    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
818
819    renderPosText(renderer, textArray + index, count, positions, kBidi_LTR, paint);
820
821    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
822    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
823}
824
825static void android_view_GLES20Canvas_drawPosText(JNIEnv* env, jobject clazz,
826        jlong rendererPtr, jstring text, jint start, jint end,
827        jfloatArray pos, jlong paintPtr) {
828    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
829    const jchar* textArray = env->GetStringChars(text, NULL);
830    jfloat* positions = env->GetFloatArrayElements(pos, NULL);
831    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
832
833    renderPosText(renderer, textArray + start, end - start, positions, kBidi_LTR, paint);
834
835    env->ReleaseFloatArrayElements(pos, positions, JNI_ABORT);
836    env->ReleaseStringChars(text, textArray);
837}
838
839// ----------------------------------------------------------------------------
840// Display lists
841// ----------------------------------------------------------------------------
842
843static jlong android_view_GLES20Canvas_finishRecording(JNIEnv* env,
844        jobject clazz, jlong rendererPtr) {
845    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
846    return reinterpret_cast<jlong>(renderer->finishRecording());
847}
848
849static jlong android_view_GLES20Canvas_createDisplayListRenderer(JNIEnv* env, jobject clazz) {
850    return reinterpret_cast<jlong>(new DisplayListRenderer);
851}
852
853static jint android_view_GLES20Canvas_drawDisplayList(JNIEnv* env,
854        jobject clazz, jlong rendererPtr, jlong displayListPtr,
855        jobject dirty, jint flags) {
856    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
857    RenderNode* displayList = reinterpret_cast<RenderNode*>(displayListPtr);
858    android::uirenderer::Rect bounds;
859    status_t status = renderer->drawDisplayList(displayList, bounds, flags);
860    if (status != DrawGlInfo::kStatusDone && dirty != NULL) {
861        env->CallVoidMethod(dirty, gRectClassInfo.set,
862                int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
863    }
864    return status;
865}
866
867// ----------------------------------------------------------------------------
868// Layers
869// ----------------------------------------------------------------------------
870
871static void android_view_GLES20Canvas_drawLayer(JNIEnv* env, jobject clazz,
872        jlong rendererPtr, jlong layerPtr, jfloat x, jfloat y) {
873    OpenGLRenderer* renderer = reinterpret_cast<OpenGLRenderer*>(rendererPtr);
874    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
875    renderer->drawLayer(layer, x, y);
876}
877
878#endif // USE_OPENGL_RENDERER
879
880// ----------------------------------------------------------------------------
881// Common
882// ----------------------------------------------------------------------------
883
884static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) {
885#ifdef USE_OPENGL_RENDERER
886    char prop[PROPERTY_VALUE_MAX];
887    if (property_get("ro.kernel.qemu", prop, NULL) == 0) {
888        // not in the emulator
889        return JNI_TRUE;
890    }
891    // In the emulator this property will be set to 1 when hardware GLES is
892    // enabled, 0 otherwise. On old emulator versions it will be undefined.
893    property_get("ro.kernel.qemu.gles", prop, "0");
894    return atoi(prop) == 1 ? JNI_TRUE : JNI_FALSE;
895#else
896    return JNI_FALSE;
897#endif
898}
899
900// ----------------------------------------------------------------------------
901// Logging
902// ----------------------------------------------------------------------------
903
904static void
905android_app_ActivityThread_dumpGraphics(JNIEnv* env, jobject clazz, jobject javaFileDescriptor) {
906#ifdef USE_OPENGL_RENDERER
907    int fd = jniGetFDFromFileDescriptor(env, javaFileDescriptor);
908    android::uirenderer::RenderNode::outputLogBuffer(fd);
909#endif // USE_OPENGL_RENDERER
910}
911
912// ----------------------------------------------------------------------------
913// JNI Glue
914// ----------------------------------------------------------------------------
915
916const char* const kClassPathName = "android/view/GLES20Canvas";
917
918static JNINativeMethod gMethods[] = {
919    { "nIsAvailable",       "()Z",             (void*) android_view_GLES20Canvas_isAvailable },
920
921#ifdef USE_OPENGL_RENDERER
922
923    { "nDestroyRenderer",   "(J)V",            (void*) android_view_GLES20Canvas_destroyRenderer },
924    { "nSetViewport",       "(JII)V",          (void*) android_view_GLES20Canvas_setViewport },
925    { "nPrepare",           "(JZ)I",           (void*) android_view_GLES20Canvas_prepare },
926    { "nPrepareDirty",      "(JIIIIZ)I",       (void*) android_view_GLES20Canvas_prepareDirty },
927    { "nFinish",            "(J)V",            (void*) android_view_GLES20Canvas_finish },
928    { "nSetProperty",           "(Ljava/lang/String;Ljava/lang/String;)V",
929            (void*) android_view_GLES20Canvas_setProperty },
930
931    { "nCallDrawGLFunction", "(JJ)I",          (void*) android_view_GLES20Canvas_callDrawGLFunction },
932
933    { "nSave",              "(JI)I",           (void*) android_view_GLES20Canvas_save },
934    { "nRestore",           "(J)V",            (void*) android_view_GLES20Canvas_restore },
935    { "nRestoreToCount",    "(JI)V",           (void*) android_view_GLES20Canvas_restoreToCount },
936    { "nGetSaveCount",      "(J)I",            (void*) android_view_GLES20Canvas_getSaveCount },
937
938    { "nSaveLayer",         "(JFFFFJI)I",      (void*) android_view_GLES20Canvas_saveLayer },
939    { "nSaveLayer",         "(JJI)I",          (void*) android_view_GLES20Canvas_saveLayerClip },
940    { "nSaveLayerAlpha",    "(JFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayerAlpha },
941    { "nSaveLayerAlpha",    "(JII)I",          (void*) android_view_GLES20Canvas_saveLayerAlphaClip },
942
943    { "nQuickReject",       "(JFFFF)Z",        (void*) android_view_GLES20Canvas_quickReject },
944    { "nClipRect",          "(JFFFFI)Z",       (void*) android_view_GLES20Canvas_clipRectF },
945    { "nClipRect",          "(JIIIII)Z",       (void*) android_view_GLES20Canvas_clipRect },
946    { "nClipPath",          "(JJI)Z",          (void*) android_view_GLES20Canvas_clipPath },
947    { "nClipRegion",        "(JJI)Z",          (void*) android_view_GLES20Canvas_clipRegion },
948
949    { "nTranslate",         "(JFF)V",          (void*) android_view_GLES20Canvas_translate },
950    { "nRotate",            "(JF)V",           (void*) android_view_GLES20Canvas_rotate },
951    { "nScale",             "(JFF)V",          (void*) android_view_GLES20Canvas_scale },
952    { "nSkew",              "(JFF)V",          (void*) android_view_GLES20Canvas_skew },
953
954    { "nSetMatrix",         "(JJ)V",           (void*) android_view_GLES20Canvas_setMatrix },
955    { "nGetMatrix",         "(JJ)V",           (void*) android_view_GLES20Canvas_getMatrix },
956    { "nConcatMatrix",      "(JJ)V",           (void*) android_view_GLES20Canvas_concatMatrix },
957
958    { "nDrawBitmap",        "(JJ[BFFJ)V",      (void*) android_view_GLES20Canvas_drawBitmap },
959    { "nDrawBitmap",        "(JJ[BFFFFFFFFJ)V",(void*) android_view_GLES20Canvas_drawBitmapRect },
960    { "nDrawBitmap",        "(JJ[BJJ)V",       (void*) android_view_GLES20Canvas_drawBitmapMatrix },
961    { "nDrawBitmap",        "(J[IIIFFIIZJ)V",  (void*) android_view_GLES20Canvas_drawBitmapData },
962
963    { "nDrawBitmapMesh",    "(JJ[BII[FI[IIJ)V",(void*) android_view_GLES20Canvas_drawBitmapMesh },
964
965    { "nDrawPatch",         "(JJ[BJFFFFJ)V",   (void*) android_view_GLES20Canvas_drawPatch },
966
967    { "nDrawColor",         "(JII)V",          (void*) android_view_GLES20Canvas_drawColor },
968    { "nDrawRect",          "(JFFFFJ)V",       (void*) android_view_GLES20Canvas_drawRect },
969    { "nDrawRects",         "(JJJ)V",          (void*) android_view_GLES20Canvas_drawRegionAsRects },
970    { "nDrawRoundRect",     "(JFFFFFFJ)V",     (void*) android_view_GLES20Canvas_drawRoundRect },
971    { "nDrawCircle",        "(JFFFJ)V",        (void*) android_view_GLES20Canvas_drawCircle },
972    { "nDrawCircle",        "(JJJJJ)V",        (void*) android_view_GLES20Canvas_drawCircleProps },
973    { "nDrawOval",          "(JFFFFJ)V",       (void*) android_view_GLES20Canvas_drawOval },
974    { "nDrawArc",           "(JFFFFFFZJ)V",    (void*) android_view_GLES20Canvas_drawArc },
975    { "nDrawPoints",        "(J[FIIJ)V",       (void*) android_view_GLES20Canvas_drawPoints },
976
977    { "nDrawPath",          "(JJJ)V",          (void*) android_view_GLES20Canvas_drawPath },
978    { "nDrawLines",         "(J[FIIJ)V",       (void*) android_view_GLES20Canvas_drawLines },
979
980    { "nSetupPaintFilter",  "(JII)V",          (void*) android_view_GLES20Canvas_setupPaintFilter },
981    { "nResetPaintFilter",  "(J)V",            (void*) android_view_GLES20Canvas_resetPaintFilter },
982
983    { "nDrawText",          "(J[CIIFFIJJ)V",   (void*) android_view_GLES20Canvas_drawTextArray },
984    { "nDrawText",          "(JLjava/lang/String;IIFFIJJ)V",
985            (void*) android_view_GLES20Canvas_drawText },
986
987    { "nDrawTextOnPath",    "(J[CIIJFFIJ)V",   (void*) android_view_GLES20Canvas_drawTextArrayOnPath },
988    { "nDrawTextOnPath",    "(JLjava/lang/String;IIJFFIJ)V",
989            (void*) android_view_GLES20Canvas_drawTextOnPath },
990
991    { "nDrawTextRun",       "(J[CIIIIFFIJJ)V",  (void*) android_view_GLES20Canvas_drawTextRunArray },
992    { "nDrawTextRun",       "(JLjava/lang/String;IIIIFFIJJ)V",
993            (void*) android_view_GLES20Canvas_drawTextRun },
994
995    { "nDrawPosText",       "(J[CII[FJ)V",     (void*) android_view_GLES20Canvas_drawPosTextArray },
996    { "nDrawPosText",       "(JLjava/lang/String;II[FJ)V",
997            (void*) android_view_GLES20Canvas_drawPosText },
998
999    { "nGetClipBounds",     "(JLandroid/graphics/Rect;)Z",
1000            (void*) android_view_GLES20Canvas_getClipBounds },
1001
1002    { "nFinishRecording",        "(J)J",      (void*) android_view_GLES20Canvas_finishRecording },
1003    { "nDrawDisplayList",        "(JJLandroid/graphics/Rect;I)I",
1004            (void*) android_view_GLES20Canvas_drawDisplayList },
1005
1006    { "nCreateDisplayListRenderer", "()J",     (void*) android_view_GLES20Canvas_createDisplayListRenderer },
1007
1008    { "nDrawLayer",              "(JJFF)V",    (void*) android_view_GLES20Canvas_drawLayer },
1009
1010    { "nGetMaximumTextureWidth",  "()I",       (void*) android_view_GLES20Canvas_getMaxTextureWidth },
1011    { "nGetMaximumTextureHeight", "()I",       (void*) android_view_GLES20Canvas_getMaxTextureHeight },
1012
1013#endif
1014};
1015
1016static JNINativeMethod gActivityThreadMethods[] = {
1017    { "dumpGraphicsInfo",        "(Ljava/io/FileDescriptor;)V",
1018                                               (void*) android_app_ActivityThread_dumpGraphics }
1019};
1020
1021
1022#ifdef USE_OPENGL_RENDERER
1023    #define FIND_CLASS(var, className) \
1024            var = env->FindClass(className); \
1025            LOG_FATAL_IF(! var, "Unable to find class " className);
1026
1027    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
1028            var = env->GetMethodID(clazz, methodName, methodDescriptor); \
1029            LOG_FATAL_IF(! var, "Unable to find method " methodName);
1030#else
1031    #define FIND_CLASS(var, className)
1032    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor)
1033#endif
1034
1035int register_android_view_GLES20Canvas(JNIEnv* env) {
1036    jclass clazz;
1037    FIND_CLASS(clazz, "android/graphics/Rect");
1038    GET_METHOD_ID(gRectClassInfo.set, clazz, "set", "(IIII)V");
1039
1040    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
1041}
1042
1043const char* const kActivityThreadPathName = "android/app/ActivityThread";
1044
1045int register_android_app_ActivityThread(JNIEnv* env) {
1046    return AndroidRuntime::registerNativeMethods(env, kActivityThreadPathName,
1047            gActivityThreadMethods, NELEM(gActivityThreadMethods));
1048}
1049
1050};
1051