android_view_GLES20Canvas.cpp revision 3660789f06c5fbcb81e6c7c79612048bff8f0f66 
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 <SkMatrix.h>
34#include <SkPaint.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
46#include <minikin/Layout.h>
47#include "MinikinSkia.h"
48#include "MinikinUtils.h"
49
50namespace android {
51
52using namespace uirenderer;
53
54/**
55 * Note: DisplayListRenderer JNI layer is generated and compiled only on supported
56 *       devices. This means all the logic must be compiled only when the
57 *       preprocessor variable USE_OPENGL_RENDERER is defined.
58 */
59#ifdef USE_OPENGL_RENDERER
60
61// ----------------------------------------------------------------------------
62// Defines
63// ----------------------------------------------------------------------------
64
65// Debug
66#define DEBUG_RENDERER 0
67
68// Debug
69#if DEBUG_RENDERER
70    #define RENDERER_LOGD(...) ALOGD(__VA_ARGS__)
71#else
72    #define RENDERER_LOGD(...)
73#endif
74
75// ----------------------------------------------------------------------------
76
77static struct {
78    jmethodID set;
79} gRectClassInfo;
80
81// ----------------------------------------------------------------------------
82// Constructors
83// ----------------------------------------------------------------------------
84
85static void android_view_GLES20Canvas_destroyRenderer(JNIEnv* env, jobject clazz,
86        jlong rendererPtr) {
87    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
88    RENDERER_LOGD("Destroy DisplayListRenderer");
89    delete renderer;
90}
91
92// ----------------------------------------------------------------------------
93// Setup
94// ----------------------------------------------------------------------------
95
96static void android_view_GLES20Canvas_setViewport(JNIEnv* env, jobject clazz,
97        jlong rendererPtr, jint width, jint height) {
98    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
99    renderer->setViewport(width, height);
100}
101
102static int android_view_GLES20Canvas_prepare(JNIEnv* env, jobject clazz,
103        jlong rendererPtr, jboolean opaque) {
104    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
105    return renderer->prepare(opaque);
106}
107
108static int android_view_GLES20Canvas_prepareDirty(JNIEnv* env, jobject clazz,
109        jlong rendererPtr, jint left, jint top, jint right, jint bottom,
110        jboolean opaque) {
111    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
112    return renderer->prepareDirty(left, top, right, bottom, opaque);
113}
114
115static void android_view_GLES20Canvas_finish(JNIEnv* env, jobject clazz,
116        jlong rendererPtr) {
117    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
118    renderer->finish();
119}
120
121static void android_view_GLES20Canvas_setProperty(JNIEnv* env,
122        jobject clazz, jstring name, jstring value) {
123    if (!Caches::hasInstance()) {
124        ALOGW("can't set property, no Caches instance");
125        return;
126    }
127
128    if (name == NULL || value == NULL) {
129        ALOGW("can't set prop, null passed");
130    }
131
132    const char* nameCharArray = env->GetStringUTFChars(name, NULL);
133    const char* valueCharArray = env->GetStringUTFChars(value, NULL);
134    Caches::getInstance().setTempProperty(nameCharArray, valueCharArray);
135    env->ReleaseStringUTFChars(name, nameCharArray);
136    env->ReleaseStringUTFChars(name, valueCharArray);
137}
138
139// ----------------------------------------------------------------------------
140// Functor
141// ----------------------------------------------------------------------------
142
143static jint android_view_GLES20Canvas_callDrawGLFunction(JNIEnv* env, jobject clazz,
144        jlong rendererPtr, jlong functorPtr) {
145    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
146    Functor* functor = reinterpret_cast<Functor*>(functorPtr);
147    android::uirenderer::Rect dirty;
148    return renderer->callDrawGLFunction(functor, dirty);
149}
150
151// ----------------------------------------------------------------------------
152// Misc
153// ----------------------------------------------------------------------------
154
155static jint android_view_GLES20Canvas_getMaxTextureWidth(JNIEnv* env, jobject clazz) {
156    return Caches::getInstance().maxTextureSize;
157}
158
159static jint android_view_GLES20Canvas_getMaxTextureHeight(JNIEnv* env, jobject clazz) {
160    return Caches::getInstance().maxTextureSize;
161}
162
163// ----------------------------------------------------------------------------
164// State
165// ----------------------------------------------------------------------------
166
167static jint android_view_GLES20Canvas_save(JNIEnv* env, jobject clazz, jlong rendererPtr,
168        jint flags) {
169    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
170    return renderer->save(flags);
171}
172
173static jint android_view_GLES20Canvas_getSaveCount(JNIEnv* env, jobject clazz,
174        jlong rendererPtr) {
175    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
176    return renderer->getSaveCount();
177}
178
179static void android_view_GLES20Canvas_restore(JNIEnv* env, jobject clazz,
180        jlong rendererPtr) {
181    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
182    renderer->restore();
183}
184
185static void android_view_GLES20Canvas_restoreToCount(JNIEnv* env, jobject clazz,
186        jlong rendererPtr, jint saveCount) {
187    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
188    renderer->restoreToCount(saveCount);
189}
190
191// ----------------------------------------------------------------------------
192// Layers
193// ----------------------------------------------------------------------------
194
195static jint android_view_GLES20Canvas_saveLayer(JNIEnv* env, jobject clazz,
196        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
197        jlong paintPtr, jint saveFlags) {
198    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
199    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
200    return renderer->saveLayer(left, top, right, bottom, paint, saveFlags);
201}
202
203static jint android_view_GLES20Canvas_saveLayerClip(JNIEnv* env, jobject clazz,
204        jlong rendererPtr, jlong paintPtr, jint saveFlags) {
205    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
206    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
207    const android::uirenderer::Rect& bounds(renderer->getLocalClipBounds());
208    return renderer->saveLayer(bounds.left, bounds.top, bounds.right, bounds.bottom,
209            paint, saveFlags);
210}
211
212static jint android_view_GLES20Canvas_saveLayerAlpha(JNIEnv* env, jobject clazz,
213        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
214        jint alpha, jint saveFlags) {
215    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
216    return renderer->saveLayerAlpha(left, top, right, bottom, alpha, saveFlags);
217}
218
219static jint android_view_GLES20Canvas_saveLayerAlphaClip(JNIEnv* env, jobject clazz,
220        jlong rendererPtr, jint alpha, jint saveFlags) {
221    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
222    const android::uirenderer::Rect& bounds(renderer->getLocalClipBounds());
223    return renderer->saveLayerAlpha(bounds.left, bounds.top, bounds.right, bounds.bottom,
224            alpha, saveFlags);
225}
226
227// ----------------------------------------------------------------------------
228// Clipping
229// ----------------------------------------------------------------------------
230
231static jboolean android_view_GLES20Canvas_quickReject(JNIEnv* env, jobject clazz,
232        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom) {
233    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
234    const bool result = renderer->quickRejectConservative(left, top, right, bottom);
235    return result ? JNI_TRUE : JNI_FALSE;
236}
237
238static jboolean android_view_GLES20Canvas_clipRectF(JNIEnv* env, jobject clazz,
239        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
240        jint op) {
241    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
242    const bool result = renderer->clipRect(left, top, right, bottom,
243                                           static_cast<SkRegion::Op>(op));
244    return result ? JNI_TRUE : JNI_FALSE;
245}
246
247static jboolean android_view_GLES20Canvas_clipRect(JNIEnv* env, jobject clazz,
248        jlong rendererPtr, jint left, jint top, jint right, jint bottom,
249        jint op) {
250    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
251    const bool result = renderer->clipRect(float(left), float(top), float(right),
252                                           float(bottom),
253                                           static_cast<SkRegion::Op>(op));
254    return result ? JNI_TRUE : JNI_FALSE;
255}
256
257static jboolean android_view_GLES20Canvas_clipPath(JNIEnv* env, jobject clazz,
258        jlong rendererPtr, jlong pathPtr, jint op) {
259    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
260    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
261    const bool result = renderer->clipPath(path, static_cast<SkRegion::Op>(op));
262    return result ? JNI_TRUE : JNI_FALSE;
263}
264
265static jboolean android_view_GLES20Canvas_clipRegion(JNIEnv* env, jobject clazz,
266        jlong rendererPtr, jlong regionPtr, jint op) {
267    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
268    SkRegion* region = reinterpret_cast<SkRegion*>(regionPtr);
269    const bool result = renderer->clipRegion(region, static_cast<SkRegion::Op>(op));
270    return result ? JNI_TRUE : JNI_FALSE;
271}
272
273static jboolean android_view_GLES20Canvas_getClipBounds(JNIEnv* env, jobject clazz,
274        jlong rendererPtr, jobject rect) {
275    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
276    const android::uirenderer::Rect& bounds(renderer->getLocalClipBounds());
277
278    env->CallVoidMethod(rect, gRectClassInfo.set,
279            int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
280
281    return !bounds.isEmpty() ? JNI_TRUE : JNI_FALSE;
282}
283
284// ----------------------------------------------------------------------------
285// Transforms
286// ----------------------------------------------------------------------------
287
288static void android_view_GLES20Canvas_translate(JNIEnv* env, jobject clazz,
289        jlong rendererPtr, jfloat dx, jfloat dy) {
290    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
291    renderer->translate(dx, dy);
292}
293
294static void android_view_GLES20Canvas_rotate(JNIEnv* env, jobject clazz,
295        jlong rendererPtr, jfloat degrees) {
296    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
297    renderer->rotate(degrees);
298}
299
300static void android_view_GLES20Canvas_scale(JNIEnv* env, jobject clazz,
301        jlong rendererPtr, jfloat sx, jfloat sy) {
302    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
303    renderer->scale(sx, sy);
304}
305
306static void android_view_GLES20Canvas_skew(JNIEnv* env, jobject clazz,
307        jlong rendererPtr, jfloat sx, jfloat sy) {
308    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
309    renderer->skew(sx, sy);
310}
311
312static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject clazz,
313        jlong rendererPtr, jlong matrixPtr) {
314    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
315    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
316    renderer->setMatrix(matrix ? *matrix : SkMatrix::I());
317}
318
319static void android_view_GLES20Canvas_getMatrix(JNIEnv* env, jobject clazz,
320        jlong rendererPtr, jlong matrixPtr) {
321    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
322    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
323    renderer->getMatrix(matrix);
324}
325
326static void android_view_GLES20Canvas_concatMatrix(JNIEnv* env, jobject clazz,
327        jlong rendererPtr, jlong matrixPtr) {
328    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
329    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
330    renderer->concatMatrix(*matrix);
331}
332
333// ----------------------------------------------------------------------------
334// Drawing
335// ----------------------------------------------------------------------------
336
337static void android_view_GLES20Canvas_drawBitmap(JNIEnv* env, jobject clazz,
338        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
339        jfloat left, jfloat top, jlong paintPtr) {
340    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
341    // This object allows the renderer to allocate a global JNI ref to the buffer object.
342    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
343
344    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
345    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
346    renderer->drawBitmap(bitmap, left, top, paint);
347}
348
349static void android_view_GLES20Canvas_drawBitmapRect(JNIEnv* env, jobject clazz,
350        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
351        float srcLeft, float srcTop, float srcRight, float srcBottom,
352        float dstLeft, float dstTop, float dstRight, float dstBottom, jlong paintPtr) {
353    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
354    // This object allows the renderer to allocate a global JNI ref to the buffer object.
355    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
356
357    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
358    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
359    renderer->drawBitmap(bitmap, srcLeft, srcTop, srcRight, srcBottom,
360            dstLeft, dstTop, dstRight, dstBottom, paint);
361}
362
363static void android_view_GLES20Canvas_drawBitmapMatrix(JNIEnv* env, jobject clazz,
364        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
365        jlong matrixPtr, jlong paintPtr) {
366    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
367    // This object allows the renderer to allocate a global JNI ref to the buffer object.
368    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
369
370    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
371    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
372    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
373    renderer->drawBitmap(bitmap, *matrix, paint);
374}
375
376static void android_view_GLES20Canvas_drawBitmapData(JNIEnv* env, jobject clazz,
377        jlong rendererPtr, jintArray colors, jint offset, jint stride,
378        jfloat left, jfloat top, jint width, jint height, jboolean hasAlpha, jlong paintPtr) {
379    const SkImageInfo info = SkImageInfo::Make(width, height,
380                               hasAlpha ? kN32_SkColorType : kRGB_565_SkColorType,
381                               kPremul_SkAlphaType);
382    SkBitmap* bitmap = new SkBitmap;
383    if (!bitmap->allocPixels(info)) {
384        delete bitmap;
385        return;
386    }
387
388    if (!GraphicsJNI::SetPixels(env, colors, offset, stride, 0, 0, width, height, *bitmap, true)) {
389        delete bitmap;
390        return;
391    }
392
393    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
394    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
395    renderer->drawBitmapData(bitmap, left, top, paint);
396
397    // If the renderer is a deferred renderer it will own the bitmap
398    if (!renderer->isRecording()) {
399        delete bitmap;
400    }
401}
402
403static void android_view_GLES20Canvas_drawBitmapMesh(JNIEnv* env, jobject clazz,
404        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer,
405        jint meshWidth, jint meshHeight, jfloatArray vertices, jint offset, jintArray colors,
406        jint colorOffset, jlong paintPtr) {
407    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
408    // This object allows the renderer to allocate a global JNI ref to the buffer object.
409    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
410
411    jfloat* verticesArray = vertices ? env->GetFloatArrayElements(vertices, NULL) + offset : NULL;
412    jint* colorsArray = colors ? env->GetIntArrayElements(colors, NULL) + colorOffset : NULL;
413
414    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
415    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
416    renderer->drawBitmapMesh(bitmap, meshWidth, meshHeight, verticesArray, colorsArray, paint);
417
418    if (vertices) env->ReleaseFloatArrayElements(vertices, verticesArray, 0);
419    if (colors) env->ReleaseIntArrayElements(colors, colorsArray, 0);
420}
421
422static void android_view_GLES20Canvas_drawPatch(JNIEnv* env, jobject clazz,
423        jlong rendererPtr, jlong bitmapPtr, jbyteArray buffer, jlong patchPtr,
424        float left, float top, float right, float bottom, jlong paintPtr) {
425    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapPtr);
426    // This object allows the renderer to allocate a global JNI ref to the buffer object.
427    JavaHeapBitmapRef bitmapRef(env, bitmap, buffer);
428
429    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
430    Res_png_9patch* patch = reinterpret_cast<Res_png_9patch*>(patchPtr);
431    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
432    renderer->drawPatch(bitmap, patch, left, top, right, bottom, paint);
433}
434
435static void android_view_GLES20Canvas_drawColor(JNIEnv* env, jobject clazz,
436        jlong rendererPtr, jint color, jint modeHandle) {
437    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
438    SkPorterDuff::Mode mode = static_cast<SkPorterDuff::Mode>(modeHandle);
439    renderer->drawColor(color, SkPorterDuff::ToXfermodeMode(mode));
440}
441
442static void android_view_GLES20Canvas_drawRect(JNIEnv* env, jobject clazz,
443        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
444        jlong paintPtr) {
445    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
446    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
447    renderer->drawRect(left, top, right, bottom, paint);
448}
449
450static void android_view_GLES20Canvas_drawRoundRect(JNIEnv* env, jobject clazz,
451        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
452        jfloat rx, jfloat ry, jlong paintPtr) {
453    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
454    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
455    renderer->drawRoundRect(left, top, right, bottom, rx, ry, paint);
456}
457
458static void android_view_GLES20Canvas_drawCircle(JNIEnv* env, jobject clazz,
459        jlong rendererPtr, jfloat x, jfloat y, jfloat radius, jlong paintPtr) {
460    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
461    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
462    renderer->drawCircle(x, y, radius, paint);
463}
464
465static void android_view_GLES20Canvas_drawCircleProps(JNIEnv* env, jobject clazz,
466        jlong rendererPtr, jlong xPropPtr, jlong yPropPtr, jlong radiusPropPtr, jlong paintPropPtr) {
467    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
468    CanvasPropertyPrimitive* xProp = reinterpret_cast<CanvasPropertyPrimitive*>(xPropPtr);
469    CanvasPropertyPrimitive* yProp = reinterpret_cast<CanvasPropertyPrimitive*>(yPropPtr);
470    CanvasPropertyPrimitive* radiusProp = reinterpret_cast<CanvasPropertyPrimitive*>(radiusPropPtr);
471    CanvasPropertyPaint* paintProp = reinterpret_cast<CanvasPropertyPaint*>(paintPropPtr);
472    renderer->drawCircle(xProp, yProp, radiusProp, paintProp);
473}
474
475static void android_view_GLES20Canvas_drawOval(JNIEnv* env, jobject clazz,
476        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
477        jlong paintPtr) {
478    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
479    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
480    renderer->drawOval(left, top, right, bottom, paint);
481}
482
483static void android_view_GLES20Canvas_drawArc(JNIEnv* env, jobject clazz,
484        jlong rendererPtr, jfloat left, jfloat top, jfloat right, jfloat bottom,
485        jfloat startAngle, jfloat sweepAngle, jboolean useCenter, jlong paintPtr) {
486    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
487    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
488    renderer->drawArc(left, top, right, bottom, startAngle, sweepAngle, useCenter, paint);
489}
490
491static void android_view_GLES20Canvas_drawRegionAsRects(JNIEnv* env, jobject clazz,
492        jlong rendererPtr, jlong regionPtr, jlong paintPtr) {
493    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
494    SkRegion* region = reinterpret_cast<SkRegion*>(regionPtr);
495    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
496    if (paint->getStyle() != SkPaint::kFill_Style ||
497            (paint->isAntiAlias() && !renderer->isCurrentTransformSimple())) {
498        SkRegion::Iterator it(*region);
499        while (!it.done()) {
500            const SkIRect& r = it.rect();
501            renderer->drawRect(r.fLeft, r.fTop, r.fRight, r.fBottom, paint);
502            it.next();
503        }
504    } else {
505        int count = 0;
506        Vector<float> rects;
507        SkRegion::Iterator it(*region);
508        while (!it.done()) {
509            const SkIRect& r = it.rect();
510            rects.push(r.fLeft);
511            rects.push(r.fTop);
512            rects.push(r.fRight);
513            rects.push(r.fBottom);
514            count += 4;
515            it.next();
516        }
517        renderer->drawRects(rects.array(), count, paint);
518    }
519}
520
521static void android_view_GLES20Canvas_drawPoints(JNIEnv* env, jobject clazz,
522        jlong rendererPtr, jfloatArray points, jint offset, jint count, jlong paintPtr) {
523    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
524    jfloat* storage = env->GetFloatArrayElements(points, NULL);
525    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
526    renderer->drawPoints(storage + offset, count, paint);
527    env->ReleaseFloatArrayElements(points, storage, 0);
528}
529
530static void android_view_GLES20Canvas_drawPath(JNIEnv* env, jobject clazz,
531        jlong rendererPtr, jlong pathPtr, jlong paintPtr) {
532    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
533    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
534    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
535    renderer->drawPath(path, paint);
536}
537
538static void android_view_GLES20Canvas_drawLines(JNIEnv* env, jobject clazz,
539        jlong rendererPtr, jfloatArray points, jint offset, jint count, jlong paintPtr) {
540    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
541    jfloat* storage = env->GetFloatArrayElements(points, NULL);
542    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
543    renderer->drawLines(storage + offset, count, paint);
544    env->ReleaseFloatArrayElements(points, storage, 0);
545}
546
547// ----------------------------------------------------------------------------
548// Draw filters
549// ----------------------------------------------------------------------------
550
551static void android_view_GLES20Canvas_setupPaintFilter(JNIEnv* env, jobject clazz,
552        jlong rendererPtr, jint clearBits, jint setBits) {
553    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
554    renderer->setupPaintFilter(clearBits, setBits);
555}
556
557static void android_view_GLES20Canvas_resetPaintFilter(JNIEnv* env, jobject clazz,
558        jlong rendererPtr) {
559    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
560    renderer->resetPaintFilter();
561}
562
563// ----------------------------------------------------------------------------
564// Text
565// ----------------------------------------------------------------------------
566
567class RenderTextFunctor {
568public:
569    RenderTextFunctor(const Layout& layout, DisplayListRenderer* renderer, jfloat x, jfloat y,
570                SkPaint* paint, uint16_t* glyphs, float* pos, float totalAdvance,
571                uirenderer::Rect& bounds)
572            : layout(layout), renderer(renderer), x(x), y(y), paint(paint), glyphs(glyphs),
573            pos(pos), totalAdvance(totalAdvance), bounds(bounds) { }
574    void operator()(size_t start, size_t end) {
575        for (size_t i = start; i < end; i++) {
576            glyphs[i] = layout.getGlyphId(i);
577            pos[2 * i] = layout.getX(i);
578            pos[2 * i + 1] = layout.getY(i);
579        }
580        size_t glyphsCount = end - start;
581        int bytesCount = glyphsCount * sizeof(jchar);
582        renderer->drawText((const char*) (glyphs + start), bytesCount, glyphsCount,
583            x, y, pos + 2 * start, paint, totalAdvance, bounds);
584    }
585private:
586    const Layout& layout;
587    DisplayListRenderer* renderer;
588    jfloat x;
589    jfloat y;
590    SkPaint* paint;
591    uint16_t* glyphs;
592    float* pos;
593    float totalAdvance;
594    uirenderer::Rect& bounds;
595};
596
597static void renderTextLayout(DisplayListRenderer* renderer, Layout* layout,
598    jfloat x, jfloat y, SkPaint* paint) {
599    size_t nGlyphs = layout->nGlyphs();
600    float* pos = new float[nGlyphs * 2];
601    uint16_t* glyphs = new uint16_t[nGlyphs];
602    MinikinRect b;
603    layout->getBounds(&b);
604    android::uirenderer::Rect bounds(b.mLeft, b.mTop, b.mRight, b.mBottom);
605    bounds.translate(x, y);
606    float totalAdvance = layout->getAdvance();
607
608    RenderTextFunctor f(*layout, renderer, x, y, paint, glyphs, pos, totalAdvance, bounds);
609    MinikinUtils::forFontRun(*layout, paint, f);
610    delete[] glyphs;
611    delete[] pos;
612}
613
614static void renderText(DisplayListRenderer* renderer, const jchar* text, int count,
615        jfloat x, jfloat y, int bidiFlags, SkPaint* paint, TypefaceImpl* typeface) {
616    Layout layout;
617    std::string css = MinikinUtils::setLayoutProperties(&layout, paint, bidiFlags, typeface);
618    layout.doLayout(text, 0, count, count, css);
619    x += MinikinUtils::xOffsetForTextAlign(paint, layout);
620    renderTextLayout(renderer, &layout, x, y, paint);
621}
622
623class RenderTextOnPathFunctor {
624public:
625    RenderTextOnPathFunctor(const Layout& layout, DisplayListRenderer* renderer, float hOffset,
626                float vOffset, SkPaint* paint, SkPath* path)
627            : layout(layout), renderer(renderer), hOffset(hOffset), vOffset(vOffset),
628                paint(paint), path(path) {
629    }
630    void operator()(size_t start, size_t end) {
631        uint16_t glyphs[1];
632        for (size_t i = start; i < end; i++) {
633            glyphs[0] = layout.getGlyphId(i);
634            float x = hOffset + layout.getX(i);
635            float y = vOffset + layout.getY(i);
636            renderer->drawTextOnPath((const char*) glyphs, sizeof(glyphs), 1, path, x, y, paint);
637        }
638    }
639private:
640    const Layout& layout;
641    DisplayListRenderer* renderer;
642    float hOffset;
643    float vOffset;
644    SkPaint* paint;
645    SkPath* path;
646};
647
648static void renderTextOnPath(DisplayListRenderer* renderer, const jchar* text, int count,
649        SkPath* path, jfloat hOffset, jfloat vOffset, int bidiFlags, SkPaint* paint,
650        TypefaceImpl* typeface) {
651    Layout layout;
652    std::string css = MinikinUtils::setLayoutProperties(&layout, paint, bidiFlags, typeface);
653    layout.doLayout(text, 0, count, count, css);
654    hOffset += MinikinUtils::hOffsetForTextAlign(paint, layout, *path);
655    SkPaint::Align align = paint->getTextAlign();
656    paint->setTextAlign(SkPaint::kLeft_Align);
657
658    RenderTextOnPathFunctor f(layout, renderer, hOffset, vOffset, paint, path);
659    MinikinUtils::forFontRun(layout, paint, f);
660    paint->setTextAlign(align);
661}
662
663static void renderTextRun(DisplayListRenderer* renderer, const jchar* text,
664        jint start, jint count, jint contextCount, jfloat x, jfloat y,
665        int bidiFlags, SkPaint* paint, TypefaceImpl* typeface) {
666    Layout layout;
667    std::string css = MinikinUtils::setLayoutProperties(&layout, paint, bidiFlags, typeface);
668    layout.doLayout(text, start, count, contextCount, css);
669    x += MinikinUtils::xOffsetForTextAlign(paint, layout);
670    renderTextLayout(renderer, &layout, x, y, paint);
671}
672
673static void android_view_GLES20Canvas_drawTextArray(JNIEnv* env, jobject clazz,
674        jlong rendererPtr, jcharArray text, jint index, jint count,
675        jfloat x, jfloat y, jint bidiFlags, jlong paintPtr, jlong typefacePtr) {
676    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
677    jchar* textArray = env->GetCharArrayElements(text, NULL);
678    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
679    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
680
681    renderText(renderer, textArray + index, count, x, y, bidiFlags, paint, typeface);
682    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
683}
684
685static void android_view_GLES20Canvas_drawText(JNIEnv* env, jobject clazz,
686        jlong rendererPtr, jstring text, jint start, jint end,
687        jfloat x, jfloat y, jint bidiFlags, jlong paintPtr, jlong typefacePtr) {
688    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
689    const jchar* textArray = env->GetStringChars(text, NULL);
690    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
691    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
692
693    renderText(renderer, textArray + start, end - start, x, y, bidiFlags, paint, typeface);
694    env->ReleaseStringChars(text, textArray);
695}
696
697static void android_view_GLES20Canvas_drawTextArrayOnPath(JNIEnv* env, jobject clazz,
698        jlong rendererPtr, jcharArray text, jint index, jint count,
699        jlong pathPtr, jfloat hOffset, jfloat vOffset, jint bidiFlags, jlong paintPtr,
700        jlong typefacePtr) {
701    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
702    jchar* textArray = env->GetCharArrayElements(text, NULL);
703    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
704    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
705    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
706
707    renderTextOnPath(renderer, textArray + index, count, path,
708            hOffset, vOffset, bidiFlags, paint, typeface);
709    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
710}
711
712static void android_view_GLES20Canvas_drawTextOnPath(JNIEnv* env, jobject clazz,
713        jlong rendererPtr, jstring text, jint start, jint end,
714        jlong pathPtr, jfloat hOffset, jfloat vOffset, jint bidiFlags, jlong paintPtr,
715        jlong typefacePtr) {
716    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
717    const jchar* textArray = env->GetStringChars(text, NULL);
718    SkPath* path = reinterpret_cast<SkPath*>(pathPtr);
719    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
720    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
721
722    renderTextOnPath(renderer, textArray + start, end - start, path,
723            hOffset, vOffset, bidiFlags, paint, typeface);
724    env->ReleaseStringChars(text, textArray);
725}
726
727static void android_view_GLES20Canvas_drawTextRunArray(JNIEnv* env, jobject clazz,
728        jlong rendererPtr, jcharArray text, jint index, jint count,
729        jint contextIndex, jint contextCount, jfloat x, jfloat y, jboolean isRtl,
730        jlong paintPtr, jlong typefacePtr) {
731    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
732    jchar* textArray = env->GetCharArrayElements(text, NULL);
733    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
734    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
735
736    int bidiFlags = isRtl ? kBidi_Force_RTL : kBidi_Force_LTR;
737    renderTextRun(renderer, textArray + contextIndex, index - contextIndex,
738            count, contextCount, x, y, bidiFlags, paint, typeface);
739    env->ReleaseCharArrayElements(text, textArray, JNI_ABORT);
740 }
741
742static void android_view_GLES20Canvas_drawTextRun(JNIEnv* env, jobject clazz,
743        jlong rendererPtr, jstring text, jint start, jint end,
744        jint contextStart, int contextEnd, jfloat x, jfloat y, jboolean isRtl,
745        jlong paintPtr, jlong typefacePtr) {
746    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
747    const jchar* textArray = env->GetStringChars(text, NULL);
748    jint count = end - start;
749    jint contextCount = contextEnd - contextStart;
750    SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
751    TypefaceImpl* typeface = reinterpret_cast<TypefaceImpl*>(typefacePtr);
752
753    int bidiFlags = isRtl ? kBidi_Force_RTL : kBidi_Force_LTR;
754    renderTextRun(renderer, textArray + contextStart, start - contextStart,
755            count, contextCount, x, y, bidiFlags, paint, typeface);
756    env->ReleaseStringChars(text, textArray);
757}
758
759// ----------------------------------------------------------------------------
760// Display lists
761// ----------------------------------------------------------------------------
762
763static jlong android_view_GLES20Canvas_finishRecording(JNIEnv* env,
764        jobject clazz, jlong rendererPtr) {
765    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
766    return reinterpret_cast<jlong>(renderer->finishRecording());
767}
768
769static jlong android_view_GLES20Canvas_createDisplayListRenderer(JNIEnv* env, jobject clazz) {
770    return reinterpret_cast<jlong>(new DisplayListRenderer);
771}
772
773static jint android_view_GLES20Canvas_drawRenderNode(JNIEnv* env,
774        jobject clazz, jlong rendererPtr, jlong renderNodePtr,
775        jobject dirty, jint flags) {
776    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
777    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
778    android::uirenderer::Rect bounds;
779    status_t status = renderer->drawRenderNode(renderNode, bounds, flags);
780    if (status != DrawGlInfo::kStatusDone && dirty != NULL) {
781        env->CallVoidMethod(dirty, gRectClassInfo.set,
782                int(bounds.left), int(bounds.top), int(bounds.right), int(bounds.bottom));
783    }
784    return status;
785}
786
787// ----------------------------------------------------------------------------
788// Layers
789// ----------------------------------------------------------------------------
790
791static void android_view_GLES20Canvas_drawLayer(JNIEnv* env, jobject clazz,
792        jlong rendererPtr, jlong layerPtr, jfloat x, jfloat y) {
793    DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr);
794    Layer* layer = reinterpret_cast<Layer*>(layerPtr);
795    renderer->drawLayer(layer, x, y);
796}
797
798#endif // USE_OPENGL_RENDERER
799
800// ----------------------------------------------------------------------------
801// Common
802// ----------------------------------------------------------------------------
803
804static jboolean android_view_GLES20Canvas_isAvailable(JNIEnv* env, jobject clazz) {
805#ifdef USE_OPENGL_RENDERER
806    char prop[PROPERTY_VALUE_MAX];
807    if (property_get("ro.kernel.qemu", prop, NULL) == 0) {
808        // not in the emulator
809        return JNI_TRUE;
810    }
811    // In the emulator this property will be set to 1 when hardware GLES is
812    // enabled, 0 otherwise. On old emulator versions it will be undefined.
813    property_get("ro.kernel.qemu.gles", prop, "0");
814    return atoi(prop) == 1 ? JNI_TRUE : JNI_FALSE;
815#else
816    return JNI_FALSE;
817#endif
818}
819
820// ----------------------------------------------------------------------------
821// Logging
822// ----------------------------------------------------------------------------
823
824static void
825android_app_ActivityThread_dumpGraphics(JNIEnv* env, jobject clazz, jobject javaFileDescriptor) {
826#ifdef USE_OPENGL_RENDERER
827    int fd = jniGetFDFromFileDescriptor(env, javaFileDescriptor);
828    android::uirenderer::RenderNode::outputLogBuffer(fd);
829#endif // USE_OPENGL_RENDERER
830}
831
832// ----------------------------------------------------------------------------
833// JNI Glue
834// ----------------------------------------------------------------------------
835
836const char* const kClassPathName = "android/view/GLES20Canvas";
837
838static JNINativeMethod gMethods[] = {
839    { "nIsAvailable",       "()Z",             (void*) android_view_GLES20Canvas_isAvailable },
840
841#ifdef USE_OPENGL_RENDERER
842
843    { "nDestroyRenderer",   "(J)V",            (void*) android_view_GLES20Canvas_destroyRenderer },
844    { "nSetViewport",       "(JII)V",          (void*) android_view_GLES20Canvas_setViewport },
845    { "nPrepare",           "(JZ)I",           (void*) android_view_GLES20Canvas_prepare },
846    { "nPrepareDirty",      "(JIIIIZ)I",       (void*) android_view_GLES20Canvas_prepareDirty },
847    { "nFinish",            "(J)V",            (void*) android_view_GLES20Canvas_finish },
848    { "nSetProperty",           "(Ljava/lang/String;Ljava/lang/String;)V",
849            (void*) android_view_GLES20Canvas_setProperty },
850
851    { "nCallDrawGLFunction", "(JJ)I",          (void*) android_view_GLES20Canvas_callDrawGLFunction },
852
853    { "nSave",              "(JI)I",           (void*) android_view_GLES20Canvas_save },
854    { "nRestore",           "(J)V",            (void*) android_view_GLES20Canvas_restore },
855    { "nRestoreToCount",    "(JI)V",           (void*) android_view_GLES20Canvas_restoreToCount },
856    { "nGetSaveCount",      "(J)I",            (void*) android_view_GLES20Canvas_getSaveCount },
857
858    { "nSaveLayer",         "(JFFFFJI)I",      (void*) android_view_GLES20Canvas_saveLayer },
859    { "nSaveLayer",         "(JJI)I",          (void*) android_view_GLES20Canvas_saveLayerClip },
860    { "nSaveLayerAlpha",    "(JFFFFII)I",      (void*) android_view_GLES20Canvas_saveLayerAlpha },
861    { "nSaveLayerAlpha",    "(JII)I",          (void*) android_view_GLES20Canvas_saveLayerAlphaClip },
862
863    { "nQuickReject",       "(JFFFF)Z",        (void*) android_view_GLES20Canvas_quickReject },
864    { "nClipRect",          "(JFFFFI)Z",       (void*) android_view_GLES20Canvas_clipRectF },
865    { "nClipRect",          "(JIIIII)Z",       (void*) android_view_GLES20Canvas_clipRect },
866    { "nClipPath",          "(JJI)Z",          (void*) android_view_GLES20Canvas_clipPath },
867    { "nClipRegion",        "(JJI)Z",          (void*) android_view_GLES20Canvas_clipRegion },
868
869    { "nTranslate",         "(JFF)V",          (void*) android_view_GLES20Canvas_translate },
870    { "nRotate",            "(JF)V",           (void*) android_view_GLES20Canvas_rotate },
871    { "nScale",             "(JFF)V",          (void*) android_view_GLES20Canvas_scale },
872    { "nSkew",              "(JFF)V",          (void*) android_view_GLES20Canvas_skew },
873
874    { "nSetMatrix",         "(JJ)V",           (void*) android_view_GLES20Canvas_setMatrix },
875    { "nGetMatrix",         "(JJ)V",           (void*) android_view_GLES20Canvas_getMatrix },
876    { "nConcatMatrix",      "(JJ)V",           (void*) android_view_GLES20Canvas_concatMatrix },
877
878    { "nDrawBitmap",        "(JJ[BFFJ)V",      (void*) android_view_GLES20Canvas_drawBitmap },
879    { "nDrawBitmap",        "(JJ[BFFFFFFFFJ)V",(void*) android_view_GLES20Canvas_drawBitmapRect },
880    { "nDrawBitmap",        "(JJ[BJJ)V",       (void*) android_view_GLES20Canvas_drawBitmapMatrix },
881    { "nDrawBitmap",        "(J[IIIFFIIZJ)V",  (void*) android_view_GLES20Canvas_drawBitmapData },
882
883    { "nDrawBitmapMesh",    "(JJ[BII[FI[IIJ)V",(void*) android_view_GLES20Canvas_drawBitmapMesh },
884
885    { "nDrawPatch",         "(JJ[BJFFFFJ)V",   (void*) android_view_GLES20Canvas_drawPatch },
886
887    { "nDrawColor",         "(JII)V",          (void*) android_view_GLES20Canvas_drawColor },
888    { "nDrawRect",          "(JFFFFJ)V",       (void*) android_view_GLES20Canvas_drawRect },
889    { "nDrawRects",         "(JJJ)V",          (void*) android_view_GLES20Canvas_drawRegionAsRects },
890    { "nDrawRoundRect",     "(JFFFFFFJ)V",     (void*) android_view_GLES20Canvas_drawRoundRect },
891    { "nDrawCircle",        "(JFFFJ)V",        (void*) android_view_GLES20Canvas_drawCircle },
892    { "nDrawCircle",        "(JJJJJ)V",        (void*) android_view_GLES20Canvas_drawCircleProps },
893    { "nDrawOval",          "(JFFFFJ)V",       (void*) android_view_GLES20Canvas_drawOval },
894    { "nDrawArc",           "(JFFFFFFZJ)V",    (void*) android_view_GLES20Canvas_drawArc },
895    { "nDrawPoints",        "(J[FIIJ)V",       (void*) android_view_GLES20Canvas_drawPoints },
896
897    { "nDrawPath",          "(JJJ)V",          (void*) android_view_GLES20Canvas_drawPath },
898    { "nDrawLines",         "(J[FIIJ)V",       (void*) android_view_GLES20Canvas_drawLines },
899
900    { "nSetupPaintFilter",  "(JII)V",          (void*) android_view_GLES20Canvas_setupPaintFilter },
901    { "nResetPaintFilter",  "(J)V",            (void*) android_view_GLES20Canvas_resetPaintFilter },
902
903    { "nDrawText",          "(J[CIIFFIJJ)V",   (void*) android_view_GLES20Canvas_drawTextArray },
904    { "nDrawText",          "(JLjava/lang/String;IIFFIJJ)V",
905            (void*) android_view_GLES20Canvas_drawText },
906
907    { "nDrawTextOnPath",    "(J[CIIJFFIJJ)V",  (void*) android_view_GLES20Canvas_drawTextArrayOnPath },
908    { "nDrawTextOnPath",    "(JLjava/lang/String;IIJFFIJJ)V",
909            (void*) android_view_GLES20Canvas_drawTextOnPath },
910
911    { "nDrawTextRun",       "(J[CIIIIFFZJJ)V",  (void*) android_view_GLES20Canvas_drawTextRunArray },
912    { "nDrawTextRun",       "(JLjava/lang/String;IIIIFFZJJ)V",
913            (void*) android_view_GLES20Canvas_drawTextRun },
914
915    { "nGetClipBounds",     "(JLandroid/graphics/Rect;)Z", (void*) android_view_GLES20Canvas_getClipBounds },
916
917    { "nFinishRecording",   "(J)J",      (void*) android_view_GLES20Canvas_finishRecording },
918    { "nDrawRenderNode",    "(JJLandroid/graphics/Rect;I)I", (void*) android_view_GLES20Canvas_drawRenderNode },
919
920    { "nCreateDisplayListRenderer", "()J",     (void*) android_view_GLES20Canvas_createDisplayListRenderer },
921
922    { "nDrawLayer",              "(JJFF)V",    (void*) android_view_GLES20Canvas_drawLayer },
923
924    { "nGetMaximumTextureWidth",  "()I",       (void*) android_view_GLES20Canvas_getMaxTextureWidth },
925    { "nGetMaximumTextureHeight", "()I",       (void*) android_view_GLES20Canvas_getMaxTextureHeight },
926
927#endif
928};
929
930static JNINativeMethod gActivityThreadMethods[] = {
931    { "dumpGraphicsInfo",        "(Ljava/io/FileDescriptor;)V",
932                                               (void*) android_app_ActivityThread_dumpGraphics }
933};
934
935
936#ifdef USE_OPENGL_RENDERER
937    #define FIND_CLASS(var, className) \
938            var = env->FindClass(className); \
939            LOG_FATAL_IF(! var, "Unable to find class " className);
940
941    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
942            var = env->GetMethodID(clazz, methodName, methodDescriptor); \
943            LOG_FATAL_IF(! var, "Unable to find method " methodName);
944#else
945    #define FIND_CLASS(var, className)
946    #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor)
947#endif
948
949int register_android_view_GLES20Canvas(JNIEnv* env) {
950    jclass clazz;
951    FIND_CLASS(clazz, "android/graphics/Rect");
952    GET_METHOD_ID(gRectClassInfo.set, clazz, "set", "(IIII)V");
953
954    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
955}
956
957const char* const kActivityThreadPathName = "android/app/ActivityThread";
958
959int register_android_app_ActivityThread(JNIEnv* env) {
960    return AndroidRuntime::registerNativeMethods(env, kActivityThreadPathName,
961            gActivityThreadMethods, NELEM(gActivityThreadMethods));
962}
963
964};
965