1 /*
2  * Copyright (C) 2007 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 "Surface"
18 
19 #include <stdio.h>
20 
21 #include "jni.h"
22 #include "JNIHelp.h"
23 #include "android_os_Parcel.h"
24 #include "android/graphics/GraphicBuffer.h"
25 #include "android/graphics/GraphicsJNI.h"
26 
27 #include "core_jni_helpers.h"
28 #include <android_runtime/android_view_Surface.h>
29 #include <android_runtime/android_graphics_SurfaceTexture.h>
30 #include <android_runtime/Log.h>
31 
32 #include <binder/Parcel.h>
33 
34 #include <gui/Surface.h>
35 #include <gui/view/Surface.h>
36 #include <gui/SurfaceControl.h>
37 #include <gui/GLConsumer.h>
38 
39 #include <ui/Rect.h>
40 #include <ui/Region.h>
41 
42 #include <SkCanvas.h>
43 #include <SkBitmap.h>
44 #include <SkImage.h>
45 #include <SkRegion.h>
46 
47 #include <utils/misc.h>
48 #include <utils/Log.h>
49 
50 #include <ScopedUtfChars.h>
51 
52 #include <AnimationContext.h>
53 #include <FrameInfo.h>
54 #include <RenderNode.h>
55 #include <renderthread/RenderProxy.h>
56 
57 // ----------------------------------------------------------------------------
58 
59 namespace android {
60 
61 static const char* const OutOfResourcesException =
62     "android/view/Surface$OutOfResourcesException";
63 
64 static struct {
65     jclass clazz;
66     jfieldID mNativeObject;
67     jfieldID mLock;
68     jmethodID ctor;
69 } gSurfaceClassInfo;
70 
71 static struct {
72     jfieldID left;
73     jfieldID top;
74     jfieldID right;
75     jfieldID bottom;
76 } gRectClassInfo;
77 
78 // ----------------------------------------------------------------------------
79 
80 // this is just a pointer we use to pass to inc/decStrong
81 static const void *sRefBaseOwner;
82 
android_view_Surface_isInstanceOf(JNIEnv * env,jobject obj)83 bool android_view_Surface_isInstanceOf(JNIEnv* env, jobject obj) {
84     return env->IsInstanceOf(obj, gSurfaceClassInfo.clazz);
85 }
86 
android_view_Surface_getNativeWindow(JNIEnv * env,jobject surfaceObj)87 sp<ANativeWindow> android_view_Surface_getNativeWindow(JNIEnv* env, jobject surfaceObj) {
88     return android_view_Surface_getSurface(env, surfaceObj);
89 }
90 
android_view_Surface_getSurface(JNIEnv * env,jobject surfaceObj)91 sp<Surface> android_view_Surface_getSurface(JNIEnv* env, jobject surfaceObj) {
92     sp<Surface> sur;
93     jobject lock = env->GetObjectField(surfaceObj,
94             gSurfaceClassInfo.mLock);
95     if (env->MonitorEnter(lock) == JNI_OK) {
96         sur = reinterpret_cast<Surface *>(
97                 env->GetLongField(surfaceObj, gSurfaceClassInfo.mNativeObject));
98         env->MonitorExit(lock);
99     }
100     env->DeleteLocalRef(lock);
101     return sur;
102 }
103 
android_view_Surface_createFromSurface(JNIEnv * env,const sp<Surface> & surface)104 jobject android_view_Surface_createFromSurface(JNIEnv* env, const sp<Surface>& surface) {
105     jobject surfaceObj = env->NewObject(gSurfaceClassInfo.clazz,
106             gSurfaceClassInfo.ctor, (jlong)surface.get());
107     if (surfaceObj == NULL) {
108         if (env->ExceptionCheck()) {
109             ALOGE("Could not create instance of Surface from IGraphicBufferProducer.");
110             LOGE_EX(env);
111             env->ExceptionClear();
112         }
113         return NULL;
114     }
115     surface->incStrong(&sRefBaseOwner);
116     return surfaceObj;
117 }
118 
android_view_Surface_createFromIGraphicBufferProducer(JNIEnv * env,const sp<IGraphicBufferProducer> & bufferProducer)119 jobject android_view_Surface_createFromIGraphicBufferProducer(JNIEnv* env,
120         const sp<IGraphicBufferProducer>& bufferProducer) {
121     if (bufferProducer == NULL) {
122         return NULL;
123     }
124 
125     sp<Surface> surface(new Surface(bufferProducer, true));
126     return android_view_Surface_createFromSurface(env, surface);
127 }
128 
android_view_Surface_mapPublicFormatToHalFormat(PublicFormat f)129 int android_view_Surface_mapPublicFormatToHalFormat(PublicFormat f) {
130 
131     switch(f) {
132         case PublicFormat::JPEG:
133         case PublicFormat::DEPTH_POINT_CLOUD:
134             return HAL_PIXEL_FORMAT_BLOB;
135         case PublicFormat::DEPTH16:
136             return HAL_PIXEL_FORMAT_Y16;
137         case PublicFormat::RAW_SENSOR:
138             return HAL_PIXEL_FORMAT_RAW16;
139         default:
140             // Most formats map 1:1
141             return static_cast<int>(f);
142     }
143 }
144 
android_view_Surface_mapPublicFormatToHalDataspace(PublicFormat f)145 android_dataspace android_view_Surface_mapPublicFormatToHalDataspace(
146         PublicFormat f) {
147     switch(f) {
148         case PublicFormat::JPEG:
149             return HAL_DATASPACE_V0_JFIF;
150         case PublicFormat::DEPTH_POINT_CLOUD:
151         case PublicFormat::DEPTH16:
152             return HAL_DATASPACE_DEPTH;
153         case PublicFormat::RAW_SENSOR:
154         case PublicFormat::RAW_PRIVATE:
155         case PublicFormat::RAW10:
156         case PublicFormat::RAW12:
157             return HAL_DATASPACE_ARBITRARY;
158         case PublicFormat::YUV_420_888:
159         case PublicFormat::NV21:
160         case PublicFormat::YV12:
161             return HAL_DATASPACE_V0_JFIF;
162         default:
163             // Most formats map to UNKNOWN
164             return HAL_DATASPACE_UNKNOWN;
165     }
166 }
167 
android_view_Surface_mapHalFormatDataspaceToPublicFormat(int format,android_dataspace dataSpace)168 PublicFormat android_view_Surface_mapHalFormatDataspaceToPublicFormat(
169         int format, android_dataspace dataSpace) {
170     switch(format) {
171         case HAL_PIXEL_FORMAT_RGBA_8888:
172         case HAL_PIXEL_FORMAT_RGBX_8888:
173         case HAL_PIXEL_FORMAT_RGBA_FP16:
174         case HAL_PIXEL_FORMAT_RGBA_1010102:
175         case HAL_PIXEL_FORMAT_RGB_888:
176         case HAL_PIXEL_FORMAT_RGB_565:
177         case HAL_PIXEL_FORMAT_Y8:
178         case HAL_PIXEL_FORMAT_RAW10:
179         case HAL_PIXEL_FORMAT_RAW12:
180         case HAL_PIXEL_FORMAT_YCbCr_420_888:
181         case HAL_PIXEL_FORMAT_YV12:
182             // Enums overlap in both name and value
183             return static_cast<PublicFormat>(format);
184         case HAL_PIXEL_FORMAT_RAW16:
185             // Name differs, though value is the same
186             return PublicFormat::RAW_SENSOR;
187         case HAL_PIXEL_FORMAT_RAW_OPAQUE:
188             // Name differs, though value is the same
189             return PublicFormat::RAW_PRIVATE;
190         case HAL_PIXEL_FORMAT_YCbCr_422_SP:
191             // Name differs, though the value is the same
192             return PublicFormat::NV16;
193         case HAL_PIXEL_FORMAT_YCrCb_420_SP:
194             // Name differs, though the value is the same
195             return PublicFormat::NV21;
196         case HAL_PIXEL_FORMAT_YCbCr_422_I:
197             // Name differs, though the value is the same
198             return PublicFormat::YUY2;
199         case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:
200             // Name differs, though the value is the same
201             return PublicFormat::PRIVATE;
202         case HAL_PIXEL_FORMAT_Y16:
203             // Dataspace-dependent
204             switch (dataSpace) {
205                 case HAL_DATASPACE_DEPTH:
206                     return PublicFormat::DEPTH16;
207                 default:
208                     // Assume non-depth Y16 is just Y16.
209                     return PublicFormat::Y16;
210             }
211             break;
212         case HAL_PIXEL_FORMAT_BLOB:
213             // Dataspace-dependent
214             switch (dataSpace) {
215                 case HAL_DATASPACE_DEPTH:
216                     return PublicFormat::DEPTH_POINT_CLOUD;
217                 case HAL_DATASPACE_V0_JFIF:
218                     return PublicFormat::JPEG;
219                 default:
220                     // Assume otherwise-marked blobs are also JPEG
221                     return PublicFormat::JPEG;
222             }
223             break;
224         case HAL_PIXEL_FORMAT_BGRA_8888:
225             // Not defined in public API
226             return PublicFormat::UNKNOWN;
227 
228         default:
229             return PublicFormat::UNKNOWN;
230     }
231 }
232 // ----------------------------------------------------------------------------
233 
isSurfaceValid(const sp<Surface> & sur)234 static inline bool isSurfaceValid(const sp<Surface>& sur) {
235     return Surface::isValid(sur);
236 }
237 
238 // ----------------------------------------------------------------------------
239 
nativeCreateFromSurfaceTexture(JNIEnv * env,jclass clazz,jobject surfaceTextureObj)240 static jlong nativeCreateFromSurfaceTexture(JNIEnv* env, jclass clazz,
241         jobject surfaceTextureObj) {
242     sp<IGraphicBufferProducer> producer(SurfaceTexture_getProducer(env, surfaceTextureObj));
243     if (producer == NULL) {
244         jniThrowException(env, "java/lang/IllegalArgumentException",
245                 "SurfaceTexture has already been released");
246         return 0;
247     }
248 
249     sp<Surface> surface(new Surface(producer, true));
250     if (surface == NULL) {
251         jniThrowException(env, OutOfResourcesException, NULL);
252         return 0;
253     }
254 
255     surface->incStrong(&sRefBaseOwner);
256     return jlong(surface.get());
257 }
258 
nativeRelease(JNIEnv * env,jclass clazz,jlong nativeObject)259 static void nativeRelease(JNIEnv* env, jclass clazz, jlong nativeObject) {
260     sp<Surface> sur(reinterpret_cast<Surface *>(nativeObject));
261     sur->decStrong(&sRefBaseOwner);
262 }
263 
nativeIsValid(JNIEnv * env,jclass clazz,jlong nativeObject)264 static jboolean nativeIsValid(JNIEnv* env, jclass clazz, jlong nativeObject) {
265     sp<Surface> sur(reinterpret_cast<Surface *>(nativeObject));
266     return isSurfaceValid(sur) ? JNI_TRUE : JNI_FALSE;
267 }
268 
nativeIsConsumerRunningBehind(JNIEnv * env,jclass clazz,jlong nativeObject)269 static jboolean nativeIsConsumerRunningBehind(JNIEnv* env, jclass clazz, jlong nativeObject) {
270     sp<Surface> sur(reinterpret_cast<Surface *>(nativeObject));
271     if (!isSurfaceValid(sur)) {
272         doThrowIAE(env);
273         return JNI_FALSE;
274     }
275     int value = 0;
276     ANativeWindow* anw = static_cast<ANativeWindow*>(sur.get());
277     anw->query(anw, NATIVE_WINDOW_CONSUMER_RUNNING_BEHIND, &value);
278     return value;
279 }
280 
convertPixelFormat(PixelFormat format)281 static inline SkColorType convertPixelFormat(PixelFormat format) {
282     /* note: if PIXEL_FORMAT_RGBX_8888 means that all alpha bytes are 0xFF, then
283         we can map to kN32_SkColorType, and optionally call
284         bitmap.setAlphaType(kOpaque_SkAlphaType) on the resulting SkBitmap
285         (as an accelerator)
286     */
287     switch (format) {
288     case PIXEL_FORMAT_RGBX_8888:    return kN32_SkColorType;
289     case PIXEL_FORMAT_RGBA_8888:    return kN32_SkColorType;
290     case PIXEL_FORMAT_RGBA_FP16:    return kRGBA_F16_SkColorType;
291     case PIXEL_FORMAT_RGB_565:      return kRGB_565_SkColorType;
292     default:                        return kUnknown_SkColorType;
293     }
294 }
295 
nativeLockCanvas(JNIEnv * env,jclass clazz,jlong nativeObject,jobject canvasObj,jobject dirtyRectObj)296 static jlong nativeLockCanvas(JNIEnv* env, jclass clazz,
297         jlong nativeObject, jobject canvasObj, jobject dirtyRectObj) {
298     sp<Surface> surface(reinterpret_cast<Surface *>(nativeObject));
299 
300     if (!isSurfaceValid(surface)) {
301         doThrowIAE(env);
302         return 0;
303     }
304 
305     Rect dirtyRect(Rect::EMPTY_RECT);
306     Rect* dirtyRectPtr = NULL;
307 
308     if (dirtyRectObj) {
309         dirtyRect.left   = env->GetIntField(dirtyRectObj, gRectClassInfo.left);
310         dirtyRect.top    = env->GetIntField(dirtyRectObj, gRectClassInfo.top);
311         dirtyRect.right  = env->GetIntField(dirtyRectObj, gRectClassInfo.right);
312         dirtyRect.bottom = env->GetIntField(dirtyRectObj, gRectClassInfo.bottom);
313         dirtyRectPtr = &dirtyRect;
314     }
315 
316     ANativeWindow_Buffer outBuffer;
317     status_t err = surface->lock(&outBuffer, dirtyRectPtr);
318     if (err < 0) {
319         const char* const exception = (err == NO_MEMORY) ?
320                 OutOfResourcesException :
321                 "java/lang/IllegalArgumentException";
322         jniThrowException(env, exception, NULL);
323         return 0;
324     }
325 
326     SkImageInfo info = SkImageInfo::Make(outBuffer.width, outBuffer.height,
327                                          convertPixelFormat(outBuffer.format),
328                                          outBuffer.format == PIXEL_FORMAT_RGBX_8888
329                                                  ? kOpaque_SkAlphaType : kPremul_SkAlphaType,
330                                          GraphicsJNI::defaultColorSpace());
331 
332     SkBitmap bitmap;
333     ssize_t bpr = outBuffer.stride * bytesPerPixel(outBuffer.format);
334     bitmap.setInfo(info, bpr);
335     if (outBuffer.width > 0 && outBuffer.height > 0) {
336         bitmap.setPixels(outBuffer.bits);
337     } else {
338         // be safe with an empty bitmap.
339         bitmap.setPixels(NULL);
340     }
341 
342     Canvas* nativeCanvas = GraphicsJNI::getNativeCanvas(env, canvasObj);
343     nativeCanvas->setBitmap(bitmap);
344 
345     if (dirtyRectPtr) {
346         nativeCanvas->clipRect(dirtyRect.left, dirtyRect.top,
347                 dirtyRect.right, dirtyRect.bottom, SkClipOp::kIntersect);
348     }
349 
350     if (dirtyRectObj) {
351         env->SetIntField(dirtyRectObj, gRectClassInfo.left,   dirtyRect.left);
352         env->SetIntField(dirtyRectObj, gRectClassInfo.top,    dirtyRect.top);
353         env->SetIntField(dirtyRectObj, gRectClassInfo.right,  dirtyRect.right);
354         env->SetIntField(dirtyRectObj, gRectClassInfo.bottom, dirtyRect.bottom);
355     }
356 
357     // Create another reference to the surface and return it.  This reference
358     // should be passed to nativeUnlockCanvasAndPost in place of mNativeObject,
359     // because the latter could be replaced while the surface is locked.
360     sp<Surface> lockedSurface(surface);
361     lockedSurface->incStrong(&sRefBaseOwner);
362     return (jlong) lockedSurface.get();
363 }
364 
nativeUnlockCanvasAndPost(JNIEnv * env,jclass clazz,jlong nativeObject,jobject canvasObj)365 static void nativeUnlockCanvasAndPost(JNIEnv* env, jclass clazz,
366         jlong nativeObject, jobject canvasObj) {
367     sp<Surface> surface(reinterpret_cast<Surface *>(nativeObject));
368     if (!isSurfaceValid(surface)) {
369         return;
370     }
371 
372     // detach the canvas from the surface
373     Canvas* nativeCanvas = GraphicsJNI::getNativeCanvas(env, canvasObj);
374     nativeCanvas->setBitmap(SkBitmap());
375 
376     // unlock surface
377     status_t err = surface->unlockAndPost();
378     if (err < 0) {
379         doThrowIAE(env);
380     }
381 }
382 
nativeAllocateBuffers(JNIEnv *,jclass,jlong nativeObject)383 static void nativeAllocateBuffers(JNIEnv* /* env */ , jclass /* clazz */,
384         jlong nativeObject) {
385     sp<Surface> surface(reinterpret_cast<Surface *>(nativeObject));
386     if (!isSurfaceValid(surface)) {
387         return;
388     }
389 
390     surface->allocateBuffers();
391 }
392 
393 // ----------------------------------------------------------------------------
394 
nativeCreateFromSurfaceControl(JNIEnv * env,jclass clazz,jlong surfaceControlNativeObj)395 static jlong nativeCreateFromSurfaceControl(JNIEnv* env, jclass clazz,
396         jlong surfaceControlNativeObj) {
397     sp<SurfaceControl> ctrl(reinterpret_cast<SurfaceControl *>(surfaceControlNativeObj));
398     sp<Surface> surface(ctrl->createSurface());
399     if (surface != NULL) {
400         surface->incStrong(&sRefBaseOwner);
401     }
402     return reinterpret_cast<jlong>(surface.get());
403 }
404 
nativeGetFromSurfaceControl(JNIEnv * env,jclass clazz,jlong surfaceControlNativeObj)405 static jlong nativeGetFromSurfaceControl(JNIEnv* env, jclass clazz,
406         jlong surfaceControlNativeObj) {
407     /*
408      * This is used by the WindowManagerService just after constructing
409      * a Surface and is necessary for returning the Surface reference to
410      * the caller. At this point, we should only have a SurfaceControl.
411      */
412 
413     sp<SurfaceControl> ctrl(reinterpret_cast<SurfaceControl *>(surfaceControlNativeObj));
414     sp<Surface> surface(ctrl->getSurface());
415     if (surface != NULL) {
416         surface->incStrong(&sRefBaseOwner);
417     }
418     return reinterpret_cast<jlong>(surface.get());
419 }
420 
nativeReadFromParcel(JNIEnv * env,jclass clazz,jlong nativeObject,jobject parcelObj)421 static jlong nativeReadFromParcel(JNIEnv* env, jclass clazz,
422         jlong nativeObject, jobject parcelObj) {
423     Parcel* parcel = parcelForJavaObject(env, parcelObj);
424     if (parcel == NULL) {
425         doThrowNPE(env);
426         return 0;
427     }
428 
429     android::view::Surface surfaceShim;
430 
431     // Calling code in Surface.java has already read the name of the Surface
432     // from the Parcel
433     surfaceShim.readFromParcel(parcel, /*nameAlreadyRead*/true);
434 
435     sp<Surface> self(reinterpret_cast<Surface *>(nativeObject));
436 
437     // update the Surface only if the underlying IGraphicBufferProducer
438     // has changed.
439     if (self != nullptr
440             && (IInterface::asBinder(self->getIGraphicBufferProducer()) ==
441                     IInterface::asBinder(surfaceShim.graphicBufferProducer))) {
442         // same IGraphicBufferProducer, return ourselves
443         return jlong(self.get());
444     }
445 
446     sp<Surface> sur;
447     if (surfaceShim.graphicBufferProducer != nullptr) {
448         // we have a new IGraphicBufferProducer, create a new Surface for it
449         sur = new Surface(surfaceShim.graphicBufferProducer, true);
450         // and keep a reference before passing to java
451         sur->incStrong(&sRefBaseOwner);
452     }
453 
454     if (self != NULL) {
455         // and loose the java reference to ourselves
456         self->decStrong(&sRefBaseOwner);
457     }
458 
459     return jlong(sur.get());
460 }
461 
nativeWriteToParcel(JNIEnv * env,jclass clazz,jlong nativeObject,jobject parcelObj)462 static void nativeWriteToParcel(JNIEnv* env, jclass clazz,
463         jlong nativeObject, jobject parcelObj) {
464     Parcel* parcel = parcelForJavaObject(env, parcelObj);
465     if (parcel == NULL) {
466         doThrowNPE(env);
467         return;
468     }
469     sp<Surface> self(reinterpret_cast<Surface *>(nativeObject));
470     android::view::Surface surfaceShim;
471     if (self != nullptr) {
472         surfaceShim.graphicBufferProducer = self->getIGraphicBufferProducer();
473     }
474     // Calling code in Surface.java has already written the name of the Surface
475     // to the Parcel
476     surfaceShim.writeToParcel(parcel, /*nameAlreadyWritten*/true);
477 }
478 
nativeGetWidth(JNIEnv * env,jclass clazz,jlong nativeObject)479 static jint nativeGetWidth(JNIEnv* env, jclass clazz, jlong nativeObject) {
480     Surface* surface = reinterpret_cast<Surface*>(nativeObject);
481     ANativeWindow* anw = static_cast<ANativeWindow*>(surface);
482     int value = 0;
483     anw->query(anw, NATIVE_WINDOW_WIDTH, &value);
484     return value;
485 }
486 
nativeGetHeight(JNIEnv * env,jclass clazz,jlong nativeObject)487 static jint nativeGetHeight(JNIEnv* env, jclass clazz, jlong nativeObject) {
488     Surface* surface = reinterpret_cast<Surface*>(nativeObject);
489     ANativeWindow* anw = static_cast<ANativeWindow*>(surface);
490     int value = 0;
491     anw->query(anw, NATIVE_WINDOW_HEIGHT, &value);
492     return value;
493 }
494 
nativeGetNextFrameNumber(JNIEnv * env,jclass clazz,jlong nativeObject)495 static jlong nativeGetNextFrameNumber(JNIEnv *env, jclass clazz, jlong nativeObject) {
496     Surface* surface = reinterpret_cast<Surface*>(nativeObject);
497     return surface->getNextFrameNumber();
498 }
499 
nativeSetScalingMode(JNIEnv * env,jclass clazz,jlong nativeObject,jint scalingMode)500 static jint nativeSetScalingMode(JNIEnv *env, jclass clazz, jlong nativeObject, jint scalingMode) {
501     Surface* surface = reinterpret_cast<Surface*>(nativeObject);
502     return surface->setScalingMode(scalingMode);
503 }
504 
nativeForceScopedDisconnect(JNIEnv * env,jclass clazz,jlong nativeObject)505 static jint nativeForceScopedDisconnect(JNIEnv *env, jclass clazz, jlong nativeObject) {
506     Surface* surface = reinterpret_cast<Surface*>(nativeObject);
507     return surface->disconnect(-1, IGraphicBufferProducer::DisconnectMode::AllLocal);
508 }
509 
nativeAttachAndQueueBuffer(JNIEnv * env,jclass clazz,jlong nativeObject,jobject graphicBuffer)510 static jint nativeAttachAndQueueBuffer(JNIEnv *env, jclass clazz, jlong nativeObject,
511         jobject graphicBuffer) {
512     Surface* surface = reinterpret_cast<Surface*>(nativeObject);
513     sp<GraphicBuffer> bp = graphicBufferForJavaObject(env, graphicBuffer);
514     if (bp == nullptr) {
515         return BAD_VALUE;
516     }
517     int err = ((ANativeWindow*)surface)->perform(surface, NATIVE_WINDOW_API_CONNECT,
518             NATIVE_WINDOW_API_CPU);
519     if (err != OK) {
520         return err;
521     }
522     err = surface->attachBuffer(bp->getNativeBuffer());
523     if (err != OK) {
524         return err;
525     }
526     err = ((ANativeWindow*)surface)->queueBuffer(surface, bp->getNativeBuffer(), -1);
527     if (err != OK) {
528         return err;
529     }
530     err = surface->disconnect(NATIVE_WINDOW_API_CPU);
531     return err;
532 }
533 
534 namespace uirenderer {
535 
536 using namespace android::uirenderer::renderthread;
537 
538 class ContextFactory : public IContextFactory {
539 public:
createAnimationContext(renderthread::TimeLord & clock)540     virtual AnimationContext* createAnimationContext(renderthread::TimeLord& clock) {
541         return new AnimationContext(clock);
542     }
543 };
544 
create(JNIEnv * env,jclass clazz,jlong rootNodePtr,jlong surfacePtr)545 static jlong create(JNIEnv* env, jclass clazz, jlong rootNodePtr, jlong surfacePtr) {
546     RenderNode* rootNode = reinterpret_cast<RenderNode*>(rootNodePtr);
547     sp<Surface> surface(reinterpret_cast<Surface*>(surfacePtr));
548     ContextFactory factory;
549     RenderProxy* proxy = new RenderProxy(false, rootNode, &factory);
550     proxy->loadSystemProperties();
551     proxy->setSwapBehavior(SwapBehavior::kSwap_discardBuffer);
552     proxy->initialize(surface);
553     // Shadows can't be used via this interface, so just set the light source
554     // to all 0s.
555     proxy->setup(0, 0, 0);
556     proxy->setLightCenter((Vector3){0, 0, 0});
557     return (jlong) proxy;
558 }
559 
setSurface(JNIEnv * env,jclass clazz,jlong rendererPtr,jlong surfacePtr)560 static void setSurface(JNIEnv* env, jclass clazz, jlong rendererPtr, jlong surfacePtr) {
561     RenderProxy* proxy = reinterpret_cast<RenderProxy*>(rendererPtr);
562     sp<Surface> surface(reinterpret_cast<Surface*>(surfacePtr));
563     proxy->updateSurface(surface);
564 }
565 
draw(JNIEnv * env,jclass clazz,jlong rendererPtr)566 static void draw(JNIEnv* env, jclass clazz, jlong rendererPtr) {
567     RenderProxy* proxy = reinterpret_cast<RenderProxy*>(rendererPtr);
568     nsecs_t vsync = systemTime(CLOCK_MONOTONIC);
569     UiFrameInfoBuilder(proxy->frameInfo())
570             .setVsync(vsync, vsync)
571             .addFlag(FrameInfoFlags::SurfaceCanvas);
572     proxy->syncAndDrawFrame();
573 }
574 
destroy(JNIEnv * env,jclass clazz,jlong rendererPtr)575 static void destroy(JNIEnv* env, jclass clazz, jlong rendererPtr) {
576     RenderProxy* proxy = reinterpret_cast<RenderProxy*>(rendererPtr);
577     delete proxy;
578 }
579 
580 } // uirenderer
581 
582 // ----------------------------------------------------------------------------
583 
584 namespace hwui = android::uirenderer;
585 
586 static const JNINativeMethod gSurfaceMethods[] = {
587     {"nativeCreateFromSurfaceTexture", "(Landroid/graphics/SurfaceTexture;)J",
588             (void*)nativeCreateFromSurfaceTexture },
589     {"nativeRelease", "(J)V",
590             (void*)nativeRelease },
591     {"nativeIsValid", "(J)Z",
592             (void*)nativeIsValid },
593     {"nativeIsConsumerRunningBehind", "(J)Z",
594             (void*)nativeIsConsumerRunningBehind },
595     {"nativeLockCanvas", "(JLandroid/graphics/Canvas;Landroid/graphics/Rect;)J",
596             (void*)nativeLockCanvas },
597     {"nativeUnlockCanvasAndPost", "(JLandroid/graphics/Canvas;)V",
598             (void*)nativeUnlockCanvasAndPost },
599     {"nativeAllocateBuffers", "(J)V",
600             (void*)nativeAllocateBuffers },
601     {"nativeCreateFromSurfaceControl", "(J)J",
602             (void*)nativeCreateFromSurfaceControl },
603     {"nativeGetFromSurfaceControl", "(J)J",
604             (void*)nativeGetFromSurfaceControl },
605     {"nativeReadFromParcel", "(JLandroid/os/Parcel;)J",
606             (void*)nativeReadFromParcel },
607     {"nativeWriteToParcel", "(JLandroid/os/Parcel;)V",
608             (void*)nativeWriteToParcel },
609     {"nativeGetWidth", "(J)I", (void*)nativeGetWidth },
610     {"nativeGetHeight", "(J)I", (void*)nativeGetHeight },
611     {"nativeGetNextFrameNumber", "(J)J", (void*)nativeGetNextFrameNumber },
612     {"nativeSetScalingMode", "(JI)I", (void*)nativeSetScalingMode },
613     {"nativeForceScopedDisconnect", "(J)I", (void*)nativeForceScopedDisconnect},
614     {"nativeAttachAndQueueBuffer", "(JLandroid/graphics/GraphicBuffer;)I", (void*)nativeAttachAndQueueBuffer},
615 
616     // HWUI context
617     {"nHwuiCreate", "(JJ)J", (void*) hwui::create },
618     {"nHwuiSetSurface", "(JJ)V", (void*) hwui::setSurface },
619     {"nHwuiDraw", "(J)V", (void*) hwui::draw },
620     {"nHwuiDestroy", "(J)V", (void*) hwui::destroy },
621 };
622 
register_android_view_Surface(JNIEnv * env)623 int register_android_view_Surface(JNIEnv* env)
624 {
625     int err = RegisterMethodsOrDie(env, "android/view/Surface",
626             gSurfaceMethods, NELEM(gSurfaceMethods));
627 
628     jclass clazz = FindClassOrDie(env, "android/view/Surface");
629     gSurfaceClassInfo.clazz = MakeGlobalRefOrDie(env, clazz);
630     gSurfaceClassInfo.mNativeObject = GetFieldIDOrDie(env,
631             gSurfaceClassInfo.clazz, "mNativeObject", "J");
632     gSurfaceClassInfo.mLock = GetFieldIDOrDie(env,
633             gSurfaceClassInfo.clazz, "mLock", "Ljava/lang/Object;");
634     gSurfaceClassInfo.ctor = GetMethodIDOrDie(env, gSurfaceClassInfo.clazz, "<init>", "(J)V");
635 
636     clazz = FindClassOrDie(env, "android/graphics/Rect");
637     gRectClassInfo.left = GetFieldIDOrDie(env, clazz, "left", "I");
638     gRectClassInfo.top = GetFieldIDOrDie(env, clazz, "top", "I");
639     gRectClassInfo.right = GetFieldIDOrDie(env, clazz, "right", "I");
640     gRectClassInfo.bottom = GetFieldIDOrDie(env, clazz, "bottom", "I");
641 
642     return err;
643 }
644 
645 };
646