SurfaceFlinger.cpp revision ebeb7095961e09f5cff0c7cf2c04fa4770b2e033
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#include <stdlib.h> 18#include <stdio.h> 19#include <stdint.h> 20#include <unistd.h> 21#include <fcntl.h> 22#include <errno.h> 23#include <math.h> 24#include <limits.h> 25#include <sys/types.h> 26#include <sys/stat.h> 27#include <sys/ioctl.h> 28 29#include <cutils/log.h> 30#include <cutils/properties.h> 31 32#include <binder/IPCThreadState.h> 33#include <binder/IServiceManager.h> 34#include <binder/MemoryHeapBase.h> 35 36#include <utils/String8.h> 37#include <utils/String16.h> 38#include <utils/StopWatch.h> 39 40#include <ui/GraphicBufferAllocator.h> 41#include <ui/GraphicLog.h> 42#include <ui/PixelFormat.h> 43 44#include <pixelflinger/pixelflinger.h> 45#include <GLES/gl.h> 46 47#include "clz.h" 48#include "GLExtensions.h" 49#include "Layer.h" 50#include "LayerDim.h" 51#include "SurfaceFlinger.h" 52 53#include "DisplayHardware/DisplayHardware.h" 54#include "DisplayHardware/HWComposer.h" 55 56/* ideally AID_GRAPHICS would be in a semi-public header 57 * or there would be a way to map a user/group name to its id 58 */ 59#ifndef AID_GRAPHICS 60#define AID_GRAPHICS 1003 61#endif 62 63#define DISPLAY_COUNT 1 64 65namespace android { 66// --------------------------------------------------------------------------- 67 68SurfaceFlinger::SurfaceFlinger() 69 : BnSurfaceComposer(), Thread(false), 70 mTransactionFlags(0), 71 mTransactionCount(0), 72 mResizeTransationPending(false), 73 mLayersRemoved(false), 74 mBootTime(systemTime()), 75 mHardwareTest("android.permission.HARDWARE_TEST"), 76 mAccessSurfaceFlinger("android.permission.ACCESS_SURFACE_FLINGER"), 77 mReadFramebuffer("android.permission.READ_FRAME_BUFFER"), 78 mDump("android.permission.DUMP"), 79 mVisibleRegionsDirty(false), 80 mHwWorkListDirty(false), 81 mDeferReleaseConsole(false), 82 mFreezeDisplay(false), 83 mElectronBeamAnimationMode(0), 84 mFreezeCount(0), 85 mFreezeDisplayTime(0), 86 mDebugRegion(0), 87 mDebugBackground(0), 88 mDebugDisableHWC(0), 89 mDebugInSwapBuffers(0), 90 mLastSwapBufferTime(0), 91 mDebugInTransaction(0), 92 mLastTransactionTime(0), 93 mBootFinished(false), 94 mConsoleSignals(0), 95 mSecureFrameBuffer(0) 96{ 97 init(); 98} 99 100void SurfaceFlinger::init() 101{ 102 LOGI("SurfaceFlinger is starting"); 103 104 // debugging stuff... 105 char value[PROPERTY_VALUE_MAX]; 106 property_get("debug.sf.showupdates", value, "0"); 107 mDebugRegion = atoi(value); 108 property_get("debug.sf.showbackground", value, "0"); 109 mDebugBackground = atoi(value); 110 111 LOGI_IF(mDebugRegion, "showupdates enabled"); 112 LOGI_IF(mDebugBackground, "showbackground enabled"); 113} 114 115SurfaceFlinger::~SurfaceFlinger() 116{ 117 glDeleteTextures(1, &mWormholeTexName); 118} 119 120sp<IMemoryHeap> SurfaceFlinger::getCblk() const 121{ 122 return mServerHeap; 123} 124 125sp<ISurfaceComposerClient> SurfaceFlinger::createConnection() 126{ 127 sp<ISurfaceComposerClient> bclient; 128 sp<Client> client(new Client(this)); 129 status_t err = client->initCheck(); 130 if (err == NO_ERROR) { 131 bclient = client; 132 } 133 return bclient; 134} 135 136sp<ISurfaceComposerClient> SurfaceFlinger::createClientConnection() 137{ 138 sp<ISurfaceComposerClient> bclient; 139 sp<UserClient> client(new UserClient(this)); 140 status_t err = client->initCheck(); 141 if (err == NO_ERROR) { 142 bclient = client; 143 } 144 return bclient; 145} 146 147 148const GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) const 149{ 150 LOGE_IF(uint32_t(dpy) >= DISPLAY_COUNT, "Invalid DisplayID %d", dpy); 151 const GraphicPlane& plane(mGraphicPlanes[dpy]); 152 return plane; 153} 154 155GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) 156{ 157 return const_cast<GraphicPlane&>( 158 const_cast<SurfaceFlinger const *>(this)->graphicPlane(dpy)); 159} 160 161void SurfaceFlinger::bootFinished() 162{ 163 const nsecs_t now = systemTime(); 164 const nsecs_t duration = now - mBootTime; 165 LOGI("Boot is finished (%ld ms)", long(ns2ms(duration)) ); 166 mBootFinished = true; 167 property_set("ctl.stop", "bootanim"); 168} 169 170void SurfaceFlinger::onFirstRef() 171{ 172 run("SurfaceFlinger", PRIORITY_URGENT_DISPLAY); 173 174 // Wait for the main thread to be done with its initialization 175 mReadyToRunBarrier.wait(); 176} 177 178static inline uint16_t pack565(int r, int g, int b) { 179 return (r<<11)|(g<<5)|b; 180} 181 182status_t SurfaceFlinger::readyToRun() 183{ 184 LOGI( "SurfaceFlinger's main thread ready to run. " 185 "Initializing graphics H/W..."); 186 187 // we only support one display currently 188 int dpy = 0; 189 190 { 191 // initialize the main display 192 GraphicPlane& plane(graphicPlane(dpy)); 193 DisplayHardware* const hw = new DisplayHardware(this, dpy); 194 plane.setDisplayHardware(hw); 195 } 196 197 // create the shared control-block 198 mServerHeap = new MemoryHeapBase(4096, 199 MemoryHeapBase::READ_ONLY, "SurfaceFlinger read-only heap"); 200 LOGE_IF(mServerHeap==0, "can't create shared memory dealer"); 201 202 mServerCblk = static_cast<surface_flinger_cblk_t*>(mServerHeap->getBase()); 203 LOGE_IF(mServerCblk==0, "can't get to shared control block's address"); 204 205 new(mServerCblk) surface_flinger_cblk_t; 206 207 // initialize primary screen 208 // (other display should be initialized in the same manner, but 209 // asynchronously, as they could come and go. None of this is supported 210 // yet). 211 const GraphicPlane& plane(graphicPlane(dpy)); 212 const DisplayHardware& hw = plane.displayHardware(); 213 const uint32_t w = hw.getWidth(); 214 const uint32_t h = hw.getHeight(); 215 const uint32_t f = hw.getFormat(); 216 hw.makeCurrent(); 217 218 // initialize the shared control block 219 mServerCblk->connected |= 1<<dpy; 220 display_cblk_t* dcblk = mServerCblk->displays + dpy; 221 memset(dcblk, 0, sizeof(display_cblk_t)); 222 dcblk->w = plane.getWidth(); 223 dcblk->h = plane.getHeight(); 224 dcblk->format = f; 225 dcblk->orientation = ISurfaceComposer::eOrientationDefault; 226 dcblk->xdpi = hw.getDpiX(); 227 dcblk->ydpi = hw.getDpiY(); 228 dcblk->fps = hw.getRefreshRate(); 229 dcblk->density = hw.getDensity(); 230 231 // Initialize OpenGL|ES 232 glPixelStorei(GL_UNPACK_ALIGNMENT, 4); 233 glPixelStorei(GL_PACK_ALIGNMENT, 4); 234 glEnableClientState(GL_VERTEX_ARRAY); 235 glEnable(GL_SCISSOR_TEST); 236 glShadeModel(GL_FLAT); 237 glDisable(GL_DITHER); 238 glDisable(GL_CULL_FACE); 239 240 const uint16_t g0 = pack565(0x0F,0x1F,0x0F); 241 const uint16_t g1 = pack565(0x17,0x2f,0x17); 242 const uint16_t textureData[4] = { g0, g1, g1, g0 }; 243 glGenTextures(1, &mWormholeTexName); 244 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 245 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 246 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 247 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 248 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 249 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, 250 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, textureData); 251 252 glViewport(0, 0, w, h); 253 glMatrixMode(GL_PROJECTION); 254 glLoadIdentity(); 255 glOrthof(0, w, h, 0, 0, 1); 256 257 LayerDim::initDimmer(this, w, h); 258 259 mReadyToRunBarrier.open(); 260 261 /* 262 * We're now ready to accept clients... 263 */ 264 265 // start boot animation 266 property_set("ctl.start", "bootanim"); 267 268 return NO_ERROR; 269} 270 271// ---------------------------------------------------------------------------- 272#if 0 273#pragma mark - 274#pragma mark Events Handler 275#endif 276 277void SurfaceFlinger::waitForEvent() 278{ 279 while (true) { 280 nsecs_t timeout = -1; 281 const nsecs_t freezeDisplayTimeout = ms2ns(5000); 282 if (UNLIKELY(isFrozen())) { 283 // wait 5 seconds 284 const nsecs_t now = systemTime(); 285 if (mFreezeDisplayTime == 0) { 286 mFreezeDisplayTime = now; 287 } 288 nsecs_t waitTime = freezeDisplayTimeout - (now - mFreezeDisplayTime); 289 timeout = waitTime>0 ? waitTime : 0; 290 } 291 292 sp<MessageBase> msg = mEventQueue.waitMessage(timeout); 293 294 // see if we timed out 295 if (isFrozen()) { 296 const nsecs_t now = systemTime(); 297 nsecs_t frozenTime = (now - mFreezeDisplayTime); 298 if (frozenTime >= freezeDisplayTimeout) { 299 // we timed out and are still frozen 300 LOGW("timeout expired mFreezeDisplay=%d, mFreezeCount=%d", 301 mFreezeDisplay, mFreezeCount); 302 mFreezeDisplayTime = 0; 303 mFreezeCount = 0; 304 mFreezeDisplay = false; 305 } 306 } 307 308 if (msg != 0) { 309 switch (msg->what) { 310 case MessageQueue::INVALIDATE: 311 // invalidate message, just return to the main loop 312 return; 313 } 314 } 315 } 316} 317 318void SurfaceFlinger::signalEvent() { 319 mEventQueue.invalidate(); 320} 321 322void SurfaceFlinger::signal() const { 323 // this is the IPC call 324 const_cast<SurfaceFlinger*>(this)->signalEvent(); 325} 326 327status_t SurfaceFlinger::postMessageAsync(const sp<MessageBase>& msg, 328 nsecs_t reltime, uint32_t flags) 329{ 330 return mEventQueue.postMessage(msg, reltime, flags); 331} 332 333status_t SurfaceFlinger::postMessageSync(const sp<MessageBase>& msg, 334 nsecs_t reltime, uint32_t flags) 335{ 336 status_t res = mEventQueue.postMessage(msg, reltime, flags); 337 if (res == NO_ERROR) { 338 msg->wait(); 339 } 340 return res; 341} 342 343// ---------------------------------------------------------------------------- 344#if 0 345#pragma mark - 346#pragma mark Main loop 347#endif 348 349bool SurfaceFlinger::threadLoop() 350{ 351 waitForEvent(); 352 353 // check for transactions 354 if (UNLIKELY(mConsoleSignals)) { 355 handleConsoleEvents(); 356 } 357 358 if (LIKELY(mTransactionCount == 0)) { 359 // if we're in a global transaction, don't do anything. 360 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 361 uint32_t transactionFlags = getTransactionFlags(mask); 362 if (LIKELY(transactionFlags)) { 363 handleTransaction(transactionFlags); 364 } 365 } 366 367 // post surfaces (if needed) 368 handlePageFlip(); 369 370 if (UNLIKELY(mHwWorkListDirty)) { 371 // build the h/w work list 372 handleWorkList(); 373 } 374 375 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 376 if (LIKELY(hw.canDraw() && !isFrozen())) { 377 // repaint the framebuffer (if needed) 378 379 const int index = hw.getCurrentBufferIndex(); 380 GraphicLog& logger(GraphicLog::getInstance()); 381 382 logger.log(GraphicLog::SF_REPAINT, index); 383 handleRepaint(); 384 385 // inform the h/w that we're done compositing 386 logger.log(GraphicLog::SF_COMPOSITION_COMPLETE, index); 387 hw.compositionComplete(); 388 389 logger.log(GraphicLog::SF_SWAP_BUFFERS, index); 390 postFramebuffer(); 391 392 logger.log(GraphicLog::SF_UNLOCK_CLIENTS, index); 393 unlockClients(); 394 395 logger.log(GraphicLog::SF_REPAINT_DONE, index); 396 } else { 397 // pretend we did the post 398 unlockClients(); 399 usleep(16667); // 60 fps period 400 } 401 return true; 402} 403 404void SurfaceFlinger::postFramebuffer() 405{ 406 if (!mInvalidRegion.isEmpty()) { 407 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 408 const nsecs_t now = systemTime(); 409 mDebugInSwapBuffers = now; 410 hw.flip(mInvalidRegion); 411 mLastSwapBufferTime = systemTime() - now; 412 mDebugInSwapBuffers = 0; 413 mInvalidRegion.clear(); 414 } 415} 416 417void SurfaceFlinger::handleConsoleEvents() 418{ 419 // something to do with the console 420 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 421 422 int what = android_atomic_and(0, &mConsoleSignals); 423 if (what & eConsoleAcquired) { 424 hw.acquireScreen(); 425 // this is a temporary work-around, eventually this should be called 426 // by the power-manager 427 SurfaceFlinger::turnElectronBeamOn(mElectronBeamAnimationMode); 428 } 429 430 if (mDeferReleaseConsole && hw.isScreenAcquired()) { 431 // We got the release signal before the acquire signal 432 mDeferReleaseConsole = false; 433 hw.releaseScreen(); 434 } 435 436 if (what & eConsoleReleased) { 437 if (hw.isScreenAcquired()) { 438 hw.releaseScreen(); 439 } else { 440 mDeferReleaseConsole = true; 441 } 442 } 443 444 mDirtyRegion.set(hw.bounds()); 445} 446 447void SurfaceFlinger::handleTransaction(uint32_t transactionFlags) 448{ 449 Vector< sp<LayerBase> > ditchedLayers; 450 451 /* 452 * Perform and commit the transaction 453 */ 454 455 { // scope for the lock 456 Mutex::Autolock _l(mStateLock); 457 const nsecs_t now = systemTime(); 458 mDebugInTransaction = now; 459 handleTransactionLocked(transactionFlags, ditchedLayers); 460 mLastTransactionTime = systemTime() - now; 461 mDebugInTransaction = 0; 462 mHwWorkListDirty = true; 463 // here the transaction has been committed 464 } 465 466 /* 467 * Clean-up all layers that went away 468 * (do this without the lock held) 469 */ 470 471 const size_t count = ditchedLayers.size(); 472 for (size_t i=0 ; i<count ; i++) { 473 if (ditchedLayers[i] != 0) { 474 //LOGD("ditching layer %p", ditchedLayers[i].get()); 475 ditchedLayers[i]->ditch(); 476 } 477 } 478} 479 480void SurfaceFlinger::handleTransactionLocked( 481 uint32_t transactionFlags, Vector< sp<LayerBase> >& ditchedLayers) 482{ 483 const LayerVector& currentLayers(mCurrentState.layersSortedByZ); 484 const size_t count = currentLayers.size(); 485 486 /* 487 * Traversal of the children 488 * (perform the transaction for each of them if needed) 489 */ 490 491 const bool layersNeedTransaction = transactionFlags & eTraversalNeeded; 492 if (layersNeedTransaction) { 493 for (size_t i=0 ; i<count ; i++) { 494 const sp<LayerBase>& layer = currentLayers[i]; 495 uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded); 496 if (!trFlags) continue; 497 498 const uint32_t flags = layer->doTransaction(0); 499 if (flags & Layer::eVisibleRegion) 500 mVisibleRegionsDirty = true; 501 } 502 } 503 504 /* 505 * Perform our own transaction if needed 506 */ 507 508 if (transactionFlags & eTransactionNeeded) { 509 if (mCurrentState.orientation != mDrawingState.orientation) { 510 // the orientation has changed, recompute all visible regions 511 // and invalidate everything. 512 513 const int dpy = 0; 514 const int orientation = mCurrentState.orientation; 515 const uint32_t type = mCurrentState.orientationType; 516 GraphicPlane& plane(graphicPlane(dpy)); 517 plane.setOrientation(orientation); 518 519 // update the shared control block 520 const DisplayHardware& hw(plane.displayHardware()); 521 volatile display_cblk_t* dcblk = mServerCblk->displays + dpy; 522 dcblk->orientation = orientation; 523 dcblk->w = plane.getWidth(); 524 dcblk->h = plane.getHeight(); 525 526 mVisibleRegionsDirty = true; 527 mDirtyRegion.set(hw.bounds()); 528 } 529 530 if (mCurrentState.freezeDisplay != mDrawingState.freezeDisplay) { 531 // freezing or unfreezing the display -> trigger animation if needed 532 mFreezeDisplay = mCurrentState.freezeDisplay; 533 if (mFreezeDisplay) 534 mFreezeDisplayTime = 0; 535 } 536 537 if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) { 538 // layers have been added 539 mVisibleRegionsDirty = true; 540 } 541 542 // some layers might have been removed, so 543 // we need to update the regions they're exposing. 544 if (mLayersRemoved) { 545 mLayersRemoved = false; 546 mVisibleRegionsDirty = true; 547 const LayerVector& previousLayers(mDrawingState.layersSortedByZ); 548 const size_t count = previousLayers.size(); 549 for (size_t i=0 ; i<count ; i++) { 550 const sp<LayerBase>& layer(previousLayers[i]); 551 if (currentLayers.indexOf( layer ) < 0) { 552 // this layer is not visible anymore 553 ditchedLayers.add(layer); 554 mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen); 555 } 556 } 557 } 558 } 559 560 commitTransaction(); 561} 562 563sp<FreezeLock> SurfaceFlinger::getFreezeLock() const 564{ 565 return new FreezeLock(const_cast<SurfaceFlinger *>(this)); 566} 567 568void SurfaceFlinger::computeVisibleRegions( 569 LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion) 570{ 571 const GraphicPlane& plane(graphicPlane(0)); 572 const Transform& planeTransform(plane.transform()); 573 const DisplayHardware& hw(plane.displayHardware()); 574 const Region screenRegion(hw.bounds()); 575 576 Region aboveOpaqueLayers; 577 Region aboveCoveredLayers; 578 Region dirty; 579 580 bool secureFrameBuffer = false; 581 582 size_t i = currentLayers.size(); 583 while (i--) { 584 const sp<LayerBase>& layer = currentLayers[i]; 585 layer->validateVisibility(planeTransform); 586 587 // start with the whole surface at its current location 588 const Layer::State& s(layer->drawingState()); 589 590 /* 591 * opaqueRegion: area of a surface that is fully opaque. 592 */ 593 Region opaqueRegion; 594 595 /* 596 * visibleRegion: area of a surface that is visible on screen 597 * and not fully transparent. This is essentially the layer's 598 * footprint minus the opaque regions above it. 599 * Areas covered by a translucent surface are considered visible. 600 */ 601 Region visibleRegion; 602 603 /* 604 * coveredRegion: area of a surface that is covered by all 605 * visible regions above it (which includes the translucent areas). 606 */ 607 Region coveredRegion; 608 609 610 // handle hidden surfaces by setting the visible region to empty 611 if (LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) { 612 const bool translucent = layer->needsBlending(); 613 const Rect bounds(layer->visibleBounds()); 614 visibleRegion.set(bounds); 615 visibleRegion.andSelf(screenRegion); 616 if (!visibleRegion.isEmpty()) { 617 // Remove the transparent area from the visible region 618 if (translucent) { 619 visibleRegion.subtractSelf(layer->transparentRegionScreen); 620 } 621 622 // compute the opaque region 623 const int32_t layerOrientation = layer->getOrientation(); 624 if (s.alpha==255 && !translucent && 625 ((layerOrientation & Transform::ROT_INVALID) == false)) { 626 // the opaque region is the layer's footprint 627 opaqueRegion = visibleRegion; 628 } 629 } 630 } 631 632 // Clip the covered region to the visible region 633 coveredRegion = aboveCoveredLayers.intersect(visibleRegion); 634 635 // Update aboveCoveredLayers for next (lower) layer 636 aboveCoveredLayers.orSelf(visibleRegion); 637 638 // subtract the opaque region covered by the layers above us 639 visibleRegion.subtractSelf(aboveOpaqueLayers); 640 641 // compute this layer's dirty region 642 if (layer->contentDirty) { 643 // we need to invalidate the whole region 644 dirty = visibleRegion; 645 // as well, as the old visible region 646 dirty.orSelf(layer->visibleRegionScreen); 647 layer->contentDirty = false; 648 } else { 649 /* compute the exposed region: 650 * the exposed region consists of two components: 651 * 1) what's VISIBLE now and was COVERED before 652 * 2) what's EXPOSED now less what was EXPOSED before 653 * 654 * note that (1) is conservative, we start with the whole 655 * visible region but only keep what used to be covered by 656 * something -- which mean it may have been exposed. 657 * 658 * (2) handles areas that were not covered by anything but got 659 * exposed because of a resize. 660 */ 661 const Region newExposed = visibleRegion - coveredRegion; 662 const Region oldVisibleRegion = layer->visibleRegionScreen; 663 const Region oldCoveredRegion = layer->coveredRegionScreen; 664 const Region oldExposed = oldVisibleRegion - oldCoveredRegion; 665 dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed); 666 } 667 dirty.subtractSelf(aboveOpaqueLayers); 668 669 // accumulate to the screen dirty region 670 dirtyRegion.orSelf(dirty); 671 672 // Update aboveOpaqueLayers for next (lower) layer 673 aboveOpaqueLayers.orSelf(opaqueRegion); 674 675 // Store the visible region is screen space 676 layer->setVisibleRegion(visibleRegion); 677 layer->setCoveredRegion(coveredRegion); 678 679 // If a secure layer is partially visible, lock-down the screen! 680 if (layer->isSecure() && !visibleRegion.isEmpty()) { 681 secureFrameBuffer = true; 682 } 683 } 684 685 // invalidate the areas where a layer was removed 686 dirtyRegion.orSelf(mDirtyRegionRemovedLayer); 687 mDirtyRegionRemovedLayer.clear(); 688 689 mSecureFrameBuffer = secureFrameBuffer; 690 opaqueRegion = aboveOpaqueLayers; 691} 692 693 694void SurfaceFlinger::commitTransaction() 695{ 696 mDrawingState = mCurrentState; 697 mResizeTransationPending = false; 698 mTransactionCV.broadcast(); 699} 700 701void SurfaceFlinger::handlePageFlip() 702{ 703 bool visibleRegions = mVisibleRegionsDirty; 704 LayerVector& currentLayers( 705 const_cast<LayerVector&>(mDrawingState.layersSortedByZ)); 706 visibleRegions |= lockPageFlip(currentLayers); 707 708 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 709 const Region screenRegion(hw.bounds()); 710 if (visibleRegions) { 711 Region opaqueRegion; 712 computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion); 713 714 /* 715 * rebuild the visible layer list 716 */ 717 mVisibleLayersSortedByZ.clear(); 718 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 719 size_t count = currentLayers.size(); 720 mVisibleLayersSortedByZ.setCapacity(count); 721 for (size_t i=0 ; i<count ; i++) { 722 if (!currentLayers[i]->visibleRegionScreen.isEmpty()) 723 mVisibleLayersSortedByZ.add(currentLayers[i]); 724 } 725 726 mWormholeRegion = screenRegion.subtract(opaqueRegion); 727 mVisibleRegionsDirty = false; 728 mHwWorkListDirty = true; 729 } 730 731 unlockPageFlip(currentLayers); 732 mDirtyRegion.andSelf(screenRegion); 733} 734 735bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers) 736{ 737 bool recomputeVisibleRegions = false; 738 size_t count = currentLayers.size(); 739 sp<LayerBase> const* layers = currentLayers.array(); 740 for (size_t i=0 ; i<count ; i++) { 741 const sp<LayerBase>& layer(layers[i]); 742 layer->lockPageFlip(recomputeVisibleRegions); 743 } 744 return recomputeVisibleRegions; 745} 746 747void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers) 748{ 749 const GraphicPlane& plane(graphicPlane(0)); 750 const Transform& planeTransform(plane.transform()); 751 size_t count = currentLayers.size(); 752 sp<LayerBase> const* layers = currentLayers.array(); 753 for (size_t i=0 ; i<count ; i++) { 754 const sp<LayerBase>& layer(layers[i]); 755 layer->unlockPageFlip(planeTransform, mDirtyRegion); 756 } 757} 758 759void SurfaceFlinger::handleWorkList() 760{ 761 mHwWorkListDirty = false; 762 HWComposer& hwc(graphicPlane(0).displayHardware().getHwComposer()); 763 if (hwc.initCheck() == NO_ERROR) { 764 const Vector< sp<LayerBase> >& currentLayers(mVisibleLayersSortedByZ); 765 const size_t count = currentLayers.size(); 766 hwc.createWorkList(count); 767 hwc_layer_t* const cur(hwc.getLayers()); 768 for (size_t i=0 ; cur && i<count ; i++) { 769 currentLayers[i]->setGeometry(&cur[i]); 770 if (mDebugDisableHWC) { 771 cur[i].compositionType = HWC_FRAMEBUFFER; 772 cur[i].flags |= HWC_SKIP_LAYER; 773 } 774 } 775 } 776} 777 778void SurfaceFlinger::handleRepaint() 779{ 780 // compute the invalid region 781 mInvalidRegion.orSelf(mDirtyRegion); 782 783 if (UNLIKELY(mDebugRegion)) { 784 debugFlashRegions(); 785 } 786 787 // set the frame buffer 788 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 789 glMatrixMode(GL_MODELVIEW); 790 glLoadIdentity(); 791 792 uint32_t flags = hw.getFlags(); 793 if ((flags & DisplayHardware::SWAP_RECTANGLE) || 794 (flags & DisplayHardware::BUFFER_PRESERVED)) 795 { 796 // we can redraw only what's dirty, but since SWAP_RECTANGLE only 797 // takes a rectangle, we must make sure to update that whole 798 // rectangle in that case 799 if (flags & DisplayHardware::SWAP_RECTANGLE) { 800 // TODO: we really should be able to pass a region to 801 // SWAP_RECTANGLE so that we don't have to redraw all this. 802 mDirtyRegion.set(mInvalidRegion.bounds()); 803 } else { 804 // in the BUFFER_PRESERVED case, obviously, we can update only 805 // what's needed and nothing more. 806 // NOTE: this is NOT a common case, as preserving the backbuffer 807 // is costly and usually involves copying the whole update back. 808 } 809 } else { 810 if (flags & DisplayHardware::PARTIAL_UPDATES) { 811 // We need to redraw the rectangle that will be updated 812 // (pushed to the framebuffer). 813 // This is needed because PARTIAL_UPDATES only takes one 814 // rectangle instead of a region (see DisplayHardware::flip()) 815 mDirtyRegion.set(mInvalidRegion.bounds()); 816 } else { 817 // we need to redraw everything (the whole screen) 818 mDirtyRegion.set(hw.bounds()); 819 mInvalidRegion = mDirtyRegion; 820 } 821 } 822 823 // compose all surfaces 824 composeSurfaces(mDirtyRegion); 825 826 // clear the dirty regions 827 mDirtyRegion.clear(); 828} 829 830void SurfaceFlinger::composeSurfaces(const Region& dirty) 831{ 832 if (UNLIKELY(!mWormholeRegion.isEmpty())) { 833 // should never happen unless the window manager has a bug 834 // draw something... 835 drawWormhole(); 836 } 837 838 status_t err = NO_ERROR; 839 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 840 size_t count = layers.size(); 841 842 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 843 HWComposer& hwc(hw.getHwComposer()); 844 hwc_layer_t* const cur(hwc.getLayers()); 845 846 LOGE_IF(cur && hwc.getNumLayers() != count, 847 "HAL number of layers (%d) doesn't match surfaceflinger (%d)", 848 hwc.getNumLayers(), count); 849 850 // just to be extra-safe, use the smallest count 851 if (hwc.initCheck() == NO_ERROR) { 852 count = count < hwc.getNumLayers() ? count : hwc.getNumLayers(); 853 } 854 855 /* 856 * update the per-frame h/w composer data for each layer 857 * and build the transparent region of the FB 858 */ 859 Region transparent; 860 if (cur) { 861 for (size_t i=0 ; i<count ; i++) { 862 const sp<LayerBase>& layer(layers[i]); 863 layer->setPerFrameData(&cur[i]); 864 if (cur[i].hints & HWC_HINT_CLEAR_FB) { 865 if (!(layer->needsBlending())) { 866 transparent.orSelf(layer->visibleRegionScreen); 867 } 868 } 869 } 870 err = hwc.prepare(); 871 LOGE_IF(err, "HWComposer::prepare failed (%s)", strerror(-err)); 872 } 873 874 /* 875 * clear the area of the FB that need to be transparent 876 */ 877 transparent.andSelf(dirty); 878 if (!transparent.isEmpty()) { 879 glClearColor(0,0,0,0); 880 Region::const_iterator it = transparent.begin(); 881 Region::const_iterator const end = transparent.end(); 882 const int32_t height = hw.getHeight(); 883 while (it != end) { 884 const Rect& r(*it++); 885 const GLint sy = height - (r.top + r.height()); 886 glScissor(r.left, sy, r.width(), r.height()); 887 glClear(GL_COLOR_BUFFER_BIT); 888 } 889 } 890 891 892 /* 893 * and then, render the layers targeted at the framebuffer 894 */ 895 for (size_t i=0 ; i<count ; i++) { 896 if (cur) { 897 if ((cur[i].compositionType != HWC_FRAMEBUFFER) && 898 !(cur[i].flags & HWC_SKIP_LAYER)) { 899 // skip layers handled by the HAL 900 continue; 901 } 902 } 903 904 const sp<LayerBase>& layer(layers[i]); 905 const Region clip(dirty.intersect(layer->visibleRegionScreen)); 906 if (!clip.isEmpty()) { 907 layer->draw(clip); 908 } 909 } 910} 911 912void SurfaceFlinger::unlockClients() 913{ 914 const LayerVector& drawingLayers(mDrawingState.layersSortedByZ); 915 const size_t count = drawingLayers.size(); 916 sp<LayerBase> const* const layers = drawingLayers.array(); 917 for (size_t i=0 ; i<count ; ++i) { 918 const sp<LayerBase>& layer = layers[i]; 919 layer->finishPageFlip(); 920 } 921} 922 923void SurfaceFlinger::debugFlashRegions() 924{ 925 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 926 const uint32_t flags = hw.getFlags(); 927 928 if (!((flags & DisplayHardware::SWAP_RECTANGLE) || 929 (flags & DisplayHardware::BUFFER_PRESERVED))) { 930 const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ? 931 mDirtyRegion.bounds() : hw.bounds()); 932 composeSurfaces(repaint); 933 } 934 935 TextureManager::deactivateTextures(); 936 937 glDisable(GL_BLEND); 938 glDisable(GL_DITHER); 939 glDisable(GL_SCISSOR_TEST); 940 941 static int toggle = 0; 942 toggle = 1 - toggle; 943 if (toggle) { 944 glColor4f(1, 0, 1, 1); 945 } else { 946 glColor4f(1, 1, 0, 1); 947 } 948 949 Region::const_iterator it = mDirtyRegion.begin(); 950 Region::const_iterator const end = mDirtyRegion.end(); 951 while (it != end) { 952 const Rect& r = *it++; 953 GLfloat vertices[][2] = { 954 { r.left, r.top }, 955 { r.left, r.bottom }, 956 { r.right, r.bottom }, 957 { r.right, r.top } 958 }; 959 glVertexPointer(2, GL_FLOAT, 0, vertices); 960 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 961 } 962 963 if (mInvalidRegion.isEmpty()) { 964 mDirtyRegion.dump("mDirtyRegion"); 965 mInvalidRegion.dump("mInvalidRegion"); 966 } 967 hw.flip(mInvalidRegion); 968 969 if (mDebugRegion > 1) 970 usleep(mDebugRegion * 1000); 971 972 glEnable(GL_SCISSOR_TEST); 973 //mDirtyRegion.dump("mDirtyRegion"); 974} 975 976void SurfaceFlinger::drawWormhole() const 977{ 978 const Region region(mWormholeRegion.intersect(mDirtyRegion)); 979 if (region.isEmpty()) 980 return; 981 982 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 983 const int32_t width = hw.getWidth(); 984 const int32_t height = hw.getHeight(); 985 986 glDisable(GL_BLEND); 987 glDisable(GL_DITHER); 988 989 if (LIKELY(!mDebugBackground)) { 990 glClearColor(0,0,0,0); 991 Region::const_iterator it = region.begin(); 992 Region::const_iterator const end = region.end(); 993 while (it != end) { 994 const Rect& r = *it++; 995 const GLint sy = height - (r.top + r.height()); 996 glScissor(r.left, sy, r.width(), r.height()); 997 glClear(GL_COLOR_BUFFER_BIT); 998 } 999 } else { 1000 const GLshort vertices[][2] = { { 0, 0 }, { width, 0 }, 1001 { width, height }, { 0, height } }; 1002 const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } }; 1003 glVertexPointer(2, GL_SHORT, 0, vertices); 1004 glTexCoordPointer(2, GL_SHORT, 0, tcoords); 1005 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1006#if defined(GL_OES_EGL_image_external) 1007 if (GLExtensions::getInstance().haveTextureExternal()) { 1008 glDisable(GL_TEXTURE_EXTERNAL_OES); 1009 } 1010#endif 1011 glEnable(GL_TEXTURE_2D); 1012 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 1013 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1014 glMatrixMode(GL_TEXTURE); 1015 glLoadIdentity(); 1016 glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1); 1017 Region::const_iterator it = region.begin(); 1018 Region::const_iterator const end = region.end(); 1019 while (it != end) { 1020 const Rect& r = *it++; 1021 const GLint sy = height - (r.top + r.height()); 1022 glScissor(r.left, sy, r.width(), r.height()); 1023 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1024 } 1025 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1026 glLoadIdentity(); 1027 glMatrixMode(GL_MODELVIEW); 1028 } 1029} 1030 1031void SurfaceFlinger::debugShowFPS() const 1032{ 1033 static int mFrameCount; 1034 static int mLastFrameCount = 0; 1035 static nsecs_t mLastFpsTime = 0; 1036 static float mFps = 0; 1037 mFrameCount++; 1038 nsecs_t now = systemTime(); 1039 nsecs_t diff = now - mLastFpsTime; 1040 if (diff > ms2ns(250)) { 1041 mFps = ((mFrameCount - mLastFrameCount) * float(s2ns(1))) / diff; 1042 mLastFpsTime = now; 1043 mLastFrameCount = mFrameCount; 1044 } 1045 // XXX: mFPS has the value we want 1046 } 1047 1048status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer) 1049{ 1050 Mutex::Autolock _l(mStateLock); 1051 addLayer_l(layer); 1052 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1053 return NO_ERROR; 1054} 1055 1056status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer) 1057{ 1058 ssize_t i = mCurrentState.layersSortedByZ.add(layer); 1059 return (i < 0) ? status_t(i) : status_t(NO_ERROR); 1060} 1061 1062ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client, 1063 const sp<LayerBaseClient>& lbc) 1064{ 1065 Mutex::Autolock _l(mStateLock); 1066 1067 // attach this layer to the client 1068 ssize_t name = client->attachLayer(lbc); 1069 1070 // add this layer to the current state list 1071 addLayer_l(lbc); 1072 1073 return name; 1074} 1075 1076status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer) 1077{ 1078 Mutex::Autolock _l(mStateLock); 1079 status_t err = purgatorizeLayer_l(layer); 1080 if (err == NO_ERROR) 1081 setTransactionFlags(eTransactionNeeded); 1082 return err; 1083} 1084 1085status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase) 1086{ 1087 sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient()); 1088 if (lbc != 0) { 1089 mLayerMap.removeItem( lbc->getSurface()->asBinder() ); 1090 } 1091 ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase); 1092 if (index >= 0) { 1093 mLayersRemoved = true; 1094 return NO_ERROR; 1095 } 1096 return status_t(index); 1097} 1098 1099status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase) 1100{ 1101 // remove the layer from the main list (through a transaction). 1102 ssize_t err = removeLayer_l(layerBase); 1103 1104 layerBase->onRemoved(); 1105 1106 // it's possible that we don't find a layer, because it might 1107 // have been destroyed already -- this is not technically an error 1108 // from the user because there is a race between Client::destroySurface(), 1109 // ~Client() and ~ISurface(). 1110 return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err; 1111} 1112 1113status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer) 1114{ 1115 layer->forceVisibilityTransaction(); 1116 setTransactionFlags(eTraversalNeeded); 1117 return NO_ERROR; 1118} 1119 1120uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags) 1121{ 1122 return android_atomic_and(~flags, &mTransactionFlags) & flags; 1123} 1124 1125uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags) 1126{ 1127 uint32_t old = android_atomic_or(flags, &mTransactionFlags); 1128 if ((old & flags)==0) { // wake the server up 1129 signalEvent(); 1130 } 1131 return old; 1132} 1133 1134void SurfaceFlinger::openGlobalTransaction() 1135{ 1136 android_atomic_inc(&mTransactionCount); 1137} 1138 1139void SurfaceFlinger::closeGlobalTransaction() 1140{ 1141 if (android_atomic_dec(&mTransactionCount) == 1) { 1142 signalEvent(); 1143 1144 // if there is a transaction with a resize, wait for it to 1145 // take effect before returning. 1146 Mutex::Autolock _l(mStateLock); 1147 while (mResizeTransationPending) { 1148 status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5)); 1149 if (CC_UNLIKELY(err != NO_ERROR)) { 1150 // just in case something goes wrong in SF, return to the 1151 // called after a few seconds. 1152 LOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!"); 1153 mResizeTransationPending = false; 1154 break; 1155 } 1156 } 1157 } 1158} 1159 1160status_t SurfaceFlinger::freezeDisplay(DisplayID dpy, uint32_t flags) 1161{ 1162 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1163 return BAD_VALUE; 1164 1165 Mutex::Autolock _l(mStateLock); 1166 mCurrentState.freezeDisplay = 1; 1167 setTransactionFlags(eTransactionNeeded); 1168 1169 // flags is intended to communicate some sort of animation behavior 1170 // (for instance fading) 1171 return NO_ERROR; 1172} 1173 1174status_t SurfaceFlinger::unfreezeDisplay(DisplayID dpy, uint32_t flags) 1175{ 1176 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1177 return BAD_VALUE; 1178 1179 Mutex::Autolock _l(mStateLock); 1180 mCurrentState.freezeDisplay = 0; 1181 setTransactionFlags(eTransactionNeeded); 1182 1183 // flags is intended to communicate some sort of animation behavior 1184 // (for instance fading) 1185 return NO_ERROR; 1186} 1187 1188int SurfaceFlinger::setOrientation(DisplayID dpy, 1189 int orientation, uint32_t flags) 1190{ 1191 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1192 return BAD_VALUE; 1193 1194 Mutex::Autolock _l(mStateLock); 1195 if (mCurrentState.orientation != orientation) { 1196 if (uint32_t(orientation)<=eOrientation270 || orientation==42) { 1197 mCurrentState.orientationType = flags; 1198 mCurrentState.orientation = orientation; 1199 setTransactionFlags(eTransactionNeeded); 1200 mTransactionCV.wait(mStateLock); 1201 } else { 1202 orientation = BAD_VALUE; 1203 } 1204 } 1205 return orientation; 1206} 1207 1208sp<ISurface> SurfaceFlinger::createSurface(const sp<Client>& client, int pid, 1209 const String8& name, ISurfaceComposerClient::surface_data_t* params, 1210 DisplayID d, uint32_t w, uint32_t h, PixelFormat format, 1211 uint32_t flags) 1212{ 1213 sp<LayerBaseClient> layer; 1214 sp<LayerBaseClient::Surface> surfaceHandle; 1215 1216 if (int32_t(w|h) < 0) { 1217 LOGE("createSurface() failed, w or h is negative (w=%d, h=%d)", 1218 int(w), int(h)); 1219 return surfaceHandle; 1220 } 1221 1222 //LOGD("createSurface for pid %d (%d x %d)", pid, w, h); 1223 sp<Layer> normalLayer; 1224 switch (flags & eFXSurfaceMask) { 1225 case eFXSurfaceNormal: 1226 normalLayer = createNormalSurface(client, d, w, h, flags, format); 1227 layer = normalLayer; 1228 break; 1229 case eFXSurfaceBlur: 1230 // for now we treat Blur as Dim, until we can implement it 1231 // efficiently. 1232 case eFXSurfaceDim: 1233 layer = createDimSurface(client, d, w, h, flags); 1234 break; 1235 } 1236 1237 if (layer != 0) { 1238 layer->initStates(w, h, flags); 1239 layer->setName(name); 1240 ssize_t token = addClientLayer(client, layer); 1241 1242 surfaceHandle = layer->getSurface(); 1243 if (surfaceHandle != 0) { 1244 params->token = token; 1245 params->identity = surfaceHandle->getIdentity(); 1246 params->width = w; 1247 params->height = h; 1248 params->format = format; 1249 if (normalLayer != 0) { 1250 Mutex::Autolock _l(mStateLock); 1251 mLayerMap.add(surfaceHandle->asBinder(), normalLayer); 1252 } 1253 } 1254 1255 setTransactionFlags(eTransactionNeeded); 1256 } 1257 1258 return surfaceHandle; 1259} 1260 1261sp<Layer> SurfaceFlinger::createNormalSurface( 1262 const sp<Client>& client, DisplayID display, 1263 uint32_t w, uint32_t h, uint32_t flags, 1264 PixelFormat& format) 1265{ 1266 // initialize the surfaces 1267 switch (format) { // TODO: take h/w into account 1268 case PIXEL_FORMAT_TRANSPARENT: 1269 case PIXEL_FORMAT_TRANSLUCENT: 1270 format = PIXEL_FORMAT_RGBA_8888; 1271 break; 1272 case PIXEL_FORMAT_OPAQUE: 1273#ifdef NO_RGBX_8888 1274 format = PIXEL_FORMAT_RGB_565; 1275#else 1276 format = PIXEL_FORMAT_RGBX_8888; 1277#endif 1278 break; 1279 } 1280 1281#ifdef NO_RGBX_8888 1282 if (format == PIXEL_FORMAT_RGBX_8888) 1283 format = PIXEL_FORMAT_RGBA_8888; 1284#endif 1285 1286 sp<Layer> layer = new Layer(this, display, client); 1287 status_t err = layer->setBuffers(w, h, format, flags); 1288 if (LIKELY(err != NO_ERROR)) { 1289 LOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err)); 1290 layer.clear(); 1291 } 1292 return layer; 1293} 1294 1295sp<LayerDim> SurfaceFlinger::createDimSurface( 1296 const sp<Client>& client, DisplayID display, 1297 uint32_t w, uint32_t h, uint32_t flags) 1298{ 1299 sp<LayerDim> layer = new LayerDim(this, display, client); 1300 layer->initStates(w, h, flags); 1301 return layer; 1302} 1303 1304status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid) 1305{ 1306 /* 1307 * called by the window manager, when a surface should be marked for 1308 * destruction. 1309 * 1310 * The surface is removed from the current and drawing lists, but placed 1311 * in the purgatory queue, so it's not destroyed right-away (we need 1312 * to wait for all client's references to go away first). 1313 */ 1314 1315 status_t err = NAME_NOT_FOUND; 1316 Mutex::Autolock _l(mStateLock); 1317 sp<LayerBaseClient> layer = client->getLayerUser(sid); 1318 if (layer != 0) { 1319 err = purgatorizeLayer_l(layer); 1320 if (err == NO_ERROR) { 1321 setTransactionFlags(eTransactionNeeded); 1322 } 1323 } 1324 return err; 1325} 1326 1327status_t SurfaceFlinger::destroySurface(const sp<LayerBaseClient>& layer) 1328{ 1329 // called by ~ISurface() when all references are gone 1330 1331 class MessageDestroySurface : public MessageBase { 1332 SurfaceFlinger* flinger; 1333 sp<LayerBaseClient> layer; 1334 public: 1335 MessageDestroySurface( 1336 SurfaceFlinger* flinger, const sp<LayerBaseClient>& layer) 1337 : flinger(flinger), layer(layer) { } 1338 virtual bool handler() { 1339 sp<LayerBaseClient> l(layer); 1340 layer.clear(); // clear it outside of the lock; 1341 Mutex::Autolock _l(flinger->mStateLock); 1342 /* 1343 * remove the layer from the current list -- chances are that it's 1344 * not in the list anyway, because it should have been removed 1345 * already upon request of the client (eg: window manager). 1346 * However, a buggy client could have not done that. 1347 * Since we know we don't have any more clients, we don't need 1348 * to use the purgatory. 1349 */ 1350 status_t err = flinger->removeLayer_l(l); 1351 LOGE_IF(err<0 && err != NAME_NOT_FOUND, 1352 "error removing layer=%p (%s)", l.get(), strerror(-err)); 1353 return true; 1354 } 1355 }; 1356 1357 postMessageAsync( new MessageDestroySurface(this, layer) ); 1358 return NO_ERROR; 1359} 1360 1361status_t SurfaceFlinger::setClientState( 1362 const sp<Client>& client, 1363 int32_t count, 1364 const layer_state_t* states) 1365{ 1366 Mutex::Autolock _l(mStateLock); 1367 uint32_t flags = 0; 1368 for (int i=0 ; i<count ; i++) { 1369 const layer_state_t& s(states[i]); 1370 sp<LayerBaseClient> layer(client->getLayerUser(s.surface)); 1371 if (layer != 0) { 1372 const uint32_t what = s.what; 1373 if (what & ePositionChanged) { 1374 if (layer->setPosition(s.x, s.y)) 1375 flags |= eTraversalNeeded; 1376 } 1377 if (what & eLayerChanged) { 1378 ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer); 1379 if (layer->setLayer(s.z)) { 1380 mCurrentState.layersSortedByZ.removeAt(idx); 1381 mCurrentState.layersSortedByZ.add(layer); 1382 // we need traversal (state changed) 1383 // AND transaction (list changed) 1384 flags |= eTransactionNeeded|eTraversalNeeded; 1385 } 1386 } 1387 if (what & eSizeChanged) { 1388 if (layer->setSize(s.w, s.h)) { 1389 flags |= eTraversalNeeded; 1390 mResizeTransationPending = true; 1391 } 1392 } 1393 if (what & eAlphaChanged) { 1394 if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f))) 1395 flags |= eTraversalNeeded; 1396 } 1397 if (what & eMatrixChanged) { 1398 if (layer->setMatrix(s.matrix)) 1399 flags |= eTraversalNeeded; 1400 } 1401 if (what & eTransparentRegionChanged) { 1402 if (layer->setTransparentRegionHint(s.transparentRegion)) 1403 flags |= eTraversalNeeded; 1404 } 1405 if (what & eVisibilityChanged) { 1406 if (layer->setFlags(s.flags, s.mask)) 1407 flags |= eTraversalNeeded; 1408 } 1409 } 1410 } 1411 if (flags) { 1412 setTransactionFlags(flags); 1413 } 1414 return NO_ERROR; 1415} 1416 1417void SurfaceFlinger::screenReleased(int dpy) 1418{ 1419 // this may be called by a signal handler, we can't do too much in here 1420 android_atomic_or(eConsoleReleased, &mConsoleSignals); 1421 signalEvent(); 1422} 1423 1424void SurfaceFlinger::screenAcquired(int dpy) 1425{ 1426 // this may be called by a signal handler, we can't do too much in here 1427 android_atomic_or(eConsoleAcquired, &mConsoleSignals); 1428 signalEvent(); 1429} 1430 1431status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args) 1432{ 1433 const size_t SIZE = 4096; 1434 char buffer[SIZE]; 1435 String8 result; 1436 if (!mDump.checkCalling()) { 1437 snprintf(buffer, SIZE, "Permission Denial: " 1438 "can't dump SurfaceFlinger from pid=%d, uid=%d\n", 1439 IPCThreadState::self()->getCallingPid(), 1440 IPCThreadState::self()->getCallingUid()); 1441 result.append(buffer); 1442 } else { 1443 1444 // figure out if we're stuck somewhere 1445 const nsecs_t now = systemTime(); 1446 const nsecs_t inSwapBuffers(mDebugInSwapBuffers); 1447 const nsecs_t inTransaction(mDebugInTransaction); 1448 nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0; 1449 nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0; 1450 1451 // Try to get the main lock, but don't insist if we can't 1452 // (this would indicate SF is stuck, but we want to be able to 1453 // print something in dumpsys). 1454 int retry = 3; 1455 while (mStateLock.tryLock()<0 && --retry>=0) { 1456 usleep(1000000); 1457 } 1458 const bool locked(retry >= 0); 1459 if (!locked) { 1460 snprintf(buffer, SIZE, 1461 "SurfaceFlinger appears to be unresponsive, " 1462 "dumping anyways (no locks held)\n"); 1463 result.append(buffer); 1464 } 1465 1466 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1467 const size_t count = currentLayers.size(); 1468 for (size_t i=0 ; i<count ; i++) { 1469 const sp<LayerBase>& layer(currentLayers[i]); 1470 layer->dump(result, buffer, SIZE); 1471 const Layer::State& s(layer->drawingState()); 1472 s.transparentRegion.dump(result, "transparentRegion"); 1473 layer->transparentRegionScreen.dump(result, "transparentRegionScreen"); 1474 layer->visibleRegionScreen.dump(result, "visibleRegionScreen"); 1475 } 1476 1477 mWormholeRegion.dump(result, "WormholeRegion"); 1478 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1479 snprintf(buffer, SIZE, 1480 " display frozen: %s, freezeCount=%d, orientation=%d, canDraw=%d\n", 1481 mFreezeDisplay?"yes":"no", mFreezeCount, 1482 mCurrentState.orientation, hw.canDraw()); 1483 result.append(buffer); 1484 snprintf(buffer, SIZE, 1485 " last eglSwapBuffers() time: %f us\n" 1486 " last transaction time : %f us\n", 1487 mLastSwapBufferTime/1000.0, mLastTransactionTime/1000.0); 1488 result.append(buffer); 1489 1490 if (inSwapBuffersDuration || !locked) { 1491 snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n", 1492 inSwapBuffersDuration/1000.0); 1493 result.append(buffer); 1494 } 1495 1496 if (inTransactionDuration || !locked) { 1497 snprintf(buffer, SIZE, " transaction time: %f us\n", 1498 inTransactionDuration/1000.0); 1499 result.append(buffer); 1500 } 1501 1502 HWComposer& hwc(hw.getHwComposer()); 1503 snprintf(buffer, SIZE, " h/w composer %s and %s\n", 1504 hwc.initCheck()==NO_ERROR ? "present" : "not present", 1505 mDebugDisableHWC ? "disabled" : "enabled"); 1506 result.append(buffer); 1507 hwc.dump(result, buffer, SIZE); 1508 1509 const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get()); 1510 alloc.dump(result); 1511 hw.dump(result); 1512 1513 if (locked) { 1514 mStateLock.unlock(); 1515 } 1516 } 1517 write(fd, result.string(), result.size()); 1518 return NO_ERROR; 1519} 1520 1521status_t SurfaceFlinger::onTransact( 1522 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1523{ 1524 switch (code) { 1525 case CREATE_CONNECTION: 1526 case OPEN_GLOBAL_TRANSACTION: 1527 case CLOSE_GLOBAL_TRANSACTION: 1528 case SET_ORIENTATION: 1529 case FREEZE_DISPLAY: 1530 case UNFREEZE_DISPLAY: 1531 case BOOT_FINISHED: 1532 case TURN_ELECTRON_BEAM_OFF: 1533 case TURN_ELECTRON_BEAM_ON: 1534 { 1535 // codes that require permission check 1536 IPCThreadState* ipc = IPCThreadState::self(); 1537 const int pid = ipc->getCallingPid(); 1538 const int uid = ipc->getCallingUid(); 1539 if ((uid != AID_GRAPHICS) && !mAccessSurfaceFlinger.check(pid, uid)) { 1540 LOGE("Permission Denial: " 1541 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1542 return PERMISSION_DENIED; 1543 } 1544 break; 1545 } 1546 case CAPTURE_SCREEN: 1547 { 1548 // codes that require permission check 1549 IPCThreadState* ipc = IPCThreadState::self(); 1550 const int pid = ipc->getCallingPid(); 1551 const int uid = ipc->getCallingUid(); 1552 if ((uid != AID_GRAPHICS) && !mReadFramebuffer.check(pid, uid)) { 1553 LOGE("Permission Denial: " 1554 "can't read framebuffer pid=%d, uid=%d", pid, uid); 1555 return PERMISSION_DENIED; 1556 } 1557 break; 1558 } 1559 } 1560 1561 status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags); 1562 if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) { 1563 CHECK_INTERFACE(ISurfaceComposer, data, reply); 1564 if (UNLIKELY(!mHardwareTest.checkCalling())) { 1565 IPCThreadState* ipc = IPCThreadState::self(); 1566 const int pid = ipc->getCallingPid(); 1567 const int uid = ipc->getCallingUid(); 1568 LOGE("Permission Denial: " 1569 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1570 return PERMISSION_DENIED; 1571 } 1572 int n; 1573 switch (code) { 1574 case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE 1575 case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE 1576 return NO_ERROR; 1577 case 1002: // SHOW_UPDATES 1578 n = data.readInt32(); 1579 mDebugRegion = n ? n : (mDebugRegion ? 0 : 1); 1580 return NO_ERROR; 1581 case 1003: // SHOW_BACKGROUND 1582 n = data.readInt32(); 1583 mDebugBackground = n ? 1 : 0; 1584 return NO_ERROR; 1585 case 1008: // toggle use of hw composer 1586 n = data.readInt32(); 1587 mDebugDisableHWC = n ? 1 : 0; 1588 mHwWorkListDirty = true; 1589 // fall-through... 1590 case 1004:{ // repaint everything 1591 Mutex::Autolock _l(mStateLock); 1592 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1593 mDirtyRegion.set(hw.bounds()); // careful that's not thread-safe 1594 signalEvent(); 1595 return NO_ERROR; 1596 } 1597 case 1005:{ // force transaction 1598 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1599 return NO_ERROR; 1600 } 1601 case 1006:{ // enable/disable GraphicLog 1602 int enabled = data.readInt32(); 1603 GraphicLog::getInstance().setEnabled(enabled); 1604 return NO_ERROR; 1605 } 1606 case 1007: // set mFreezeCount 1607 mFreezeCount = data.readInt32(); 1608 mFreezeDisplayTime = 0; 1609 return NO_ERROR; 1610 case 1010: // interrogate. 1611 reply->writeInt32(0); 1612 reply->writeInt32(0); 1613 reply->writeInt32(mDebugRegion); 1614 reply->writeInt32(mDebugBackground); 1615 return NO_ERROR; 1616 case 1013: { 1617 Mutex::Autolock _l(mStateLock); 1618 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1619 reply->writeInt32(hw.getPageFlipCount()); 1620 } 1621 return NO_ERROR; 1622 } 1623 } 1624 return err; 1625} 1626 1627// --------------------------------------------------------------------------- 1628 1629status_t SurfaceFlinger::renderScreenToTextureLocked(DisplayID dpy, 1630 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1631{ 1632 if (!GLExtensions::getInstance().haveFramebufferObject()) 1633 return INVALID_OPERATION; 1634 1635 // get screen geometry 1636 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 1637 const uint32_t hw_w = hw.getWidth(); 1638 const uint32_t hw_h = hw.getHeight(); 1639 GLfloat u = 1; 1640 GLfloat v = 1; 1641 1642 // make sure to clear all GL error flags 1643 while ( glGetError() != GL_NO_ERROR ) ; 1644 1645 // create a FBO 1646 GLuint name, tname; 1647 glGenTextures(1, &tname); 1648 glBindTexture(GL_TEXTURE_2D, tname); 1649 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1650 hw_w, hw_h, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1651 if (glGetError() != GL_NO_ERROR) { 1652 while ( glGetError() != GL_NO_ERROR ) ; 1653 GLint tw = (2 << (31 - clz(hw_w))); 1654 GLint th = (2 << (31 - clz(hw_h))); 1655 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1656 tw, th, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1657 u = GLfloat(hw_w) / tw; 1658 v = GLfloat(hw_h) / th; 1659 } 1660 glGenFramebuffersOES(1, &name); 1661 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 1662 glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, 1663 GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0); 1664 1665 // redraw the screen entirely... 1666 glClearColor(0,0,0,1); 1667 glClear(GL_COLOR_BUFFER_BIT); 1668 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1669 const size_t count = layers.size(); 1670 for (size_t i=0 ; i<count ; ++i) { 1671 const sp<LayerBase>& layer(layers[i]); 1672 layer->drawForSreenShot(); 1673 } 1674 1675 // back to main framebuffer 1676 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1677 glDisable(GL_SCISSOR_TEST); 1678 glDeleteFramebuffersOES(1, &name); 1679 1680 *textureName = tname; 1681 *uOut = u; 1682 *vOut = v; 1683 return NO_ERROR; 1684} 1685 1686// --------------------------------------------------------------------------- 1687 1688status_t SurfaceFlinger::electronBeamOffAnimationImplLocked() 1689{ 1690 status_t result = PERMISSION_DENIED; 1691 1692 if (!GLExtensions::getInstance().haveFramebufferObject()) 1693 return INVALID_OPERATION; 1694 1695 // get screen geometry 1696 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1697 const uint32_t hw_w = hw.getWidth(); 1698 const uint32_t hw_h = hw.getHeight(); 1699 const Region screenBounds(hw.bounds()); 1700 1701 GLfloat u, v; 1702 GLuint tname; 1703 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1704 if (result != NO_ERROR) { 1705 return result; 1706 } 1707 1708 GLfloat vtx[8]; 1709 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1710 glEnable(GL_TEXTURE_2D); 1711 glBindTexture(GL_TEXTURE_2D, tname); 1712 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1713 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1714 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1715 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1716 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1717 glVertexPointer(2, GL_FLOAT, 0, vtx); 1718 1719 class s_curve_interpolator { 1720 const float nbFrames, s, v; 1721 public: 1722 s_curve_interpolator(int nbFrames, float s) 1723 : nbFrames(1.0f / (nbFrames-1)), s(s), 1724 v(1.0f + expf(-s + 0.5f*s)) { 1725 } 1726 float operator()(int f) { 1727 const float x = f * nbFrames; 1728 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1729 } 1730 }; 1731 1732 class v_stretch { 1733 const GLfloat hw_w, hw_h; 1734 public: 1735 v_stretch(uint32_t hw_w, uint32_t hw_h) 1736 : hw_w(hw_w), hw_h(hw_h) { 1737 } 1738 void operator()(GLfloat* vtx, float v) { 1739 const GLfloat w = hw_w + (hw_w * v); 1740 const GLfloat h = hw_h - (hw_h * v); 1741 const GLfloat x = (hw_w - w) * 0.5f; 1742 const GLfloat y = (hw_h - h) * 0.5f; 1743 vtx[0] = x; vtx[1] = y; 1744 vtx[2] = x; vtx[3] = y + h; 1745 vtx[4] = x + w; vtx[5] = y + h; 1746 vtx[6] = x + w; vtx[7] = y; 1747 } 1748 }; 1749 1750 class h_stretch { 1751 const GLfloat hw_w, hw_h; 1752 public: 1753 h_stretch(uint32_t hw_w, uint32_t hw_h) 1754 : hw_w(hw_w), hw_h(hw_h) { 1755 } 1756 void operator()(GLfloat* vtx, float v) { 1757 const GLfloat w = hw_w - (hw_w * v); 1758 const GLfloat h = 1.0f; 1759 const GLfloat x = (hw_w - w) * 0.5f; 1760 const GLfloat y = (hw_h - h) * 0.5f; 1761 vtx[0] = x; vtx[1] = y; 1762 vtx[2] = x; vtx[3] = y + h; 1763 vtx[4] = x + w; vtx[5] = y + h; 1764 vtx[6] = x + w; vtx[7] = y; 1765 } 1766 }; 1767 1768 // the full animation is 24 frames 1769 const int nbFrames = 12; 1770 s_curve_interpolator itr(nbFrames, 7.5f); 1771 s_curve_interpolator itg(nbFrames, 8.0f); 1772 s_curve_interpolator itb(nbFrames, 8.5f); 1773 1774 v_stretch vverts(hw_w, hw_h); 1775 glEnable(GL_BLEND); 1776 glBlendFunc(GL_ONE, GL_ONE); 1777 for (int i=0 ; i<nbFrames ; i++) { 1778 float x, y, w, h; 1779 const float vr = itr(i); 1780 const float vg = itg(i); 1781 const float vb = itb(i); 1782 1783 // clear screen 1784 glColorMask(1,1,1,1); 1785 glClear(GL_COLOR_BUFFER_BIT); 1786 glEnable(GL_TEXTURE_2D); 1787 1788 // draw the red plane 1789 vverts(vtx, vr); 1790 glColorMask(1,0,0,1); 1791 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1792 1793 // draw the green plane 1794 vverts(vtx, vg); 1795 glColorMask(0,1,0,1); 1796 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1797 1798 // draw the blue plane 1799 vverts(vtx, vb); 1800 glColorMask(0,0,1,1); 1801 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1802 1803 // draw the white highlight (we use the last vertices) 1804 glDisable(GL_TEXTURE_2D); 1805 glColorMask(1,1,1,1); 1806 glColor4f(vg, vg, vg, 1); 1807 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1808 hw.flip(screenBounds); 1809 } 1810 1811 h_stretch hverts(hw_w, hw_h); 1812 glDisable(GL_BLEND); 1813 glDisable(GL_TEXTURE_2D); 1814 glColorMask(1,1,1,1); 1815 for (int i=0 ; i<nbFrames ; i++) { 1816 const float v = itg(i); 1817 hverts(vtx, v); 1818 glClear(GL_COLOR_BUFFER_BIT); 1819 glColor4f(1-v, 1-v, 1-v, 1); 1820 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1821 hw.flip(screenBounds); 1822 } 1823 1824 glColorMask(1,1,1,1); 1825 glEnable(GL_SCISSOR_TEST); 1826 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1827 glDeleteTextures(1, &tname); 1828 return NO_ERROR; 1829} 1830 1831status_t SurfaceFlinger::electronBeamOnAnimationImplLocked() 1832{ 1833 status_t result = PERMISSION_DENIED; 1834 1835 if (!GLExtensions::getInstance().haveFramebufferObject()) 1836 return INVALID_OPERATION; 1837 1838 1839 // get screen geometry 1840 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1841 const uint32_t hw_w = hw.getWidth(); 1842 const uint32_t hw_h = hw.getHeight(); 1843 const Region screenBounds(hw.bounds()); 1844 1845 GLfloat u, v; 1846 GLuint tname; 1847 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1848 if (result != NO_ERROR) { 1849 return result; 1850 } 1851 1852 // back to main framebuffer 1853 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1854 glDisable(GL_SCISSOR_TEST); 1855 1856 GLfloat vtx[8]; 1857 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1858 glEnable(GL_TEXTURE_2D); 1859 glBindTexture(GL_TEXTURE_2D, tname); 1860 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 1861 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1862 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1863 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1864 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1865 glVertexPointer(2, GL_FLOAT, 0, vtx); 1866 1867 class s_curve_interpolator { 1868 const float nbFrames, s, v; 1869 public: 1870 s_curve_interpolator(int nbFrames, float s) 1871 : nbFrames(1.0f / (nbFrames-1)), s(s), 1872 v(1.0f + expf(-s + 0.5f*s)) { 1873 } 1874 float operator()(int f) { 1875 const float x = f * nbFrames; 1876 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1877 } 1878 }; 1879 1880 class v_stretch { 1881 const GLfloat hw_w, hw_h; 1882 public: 1883 v_stretch(uint32_t hw_w, uint32_t hw_h) 1884 : hw_w(hw_w), hw_h(hw_h) { 1885 } 1886 void operator()(GLfloat* vtx, float v) { 1887 const GLfloat w = hw_w + (hw_w * v); 1888 const GLfloat h = hw_h - (hw_h * v); 1889 const GLfloat x = (hw_w - w) * 0.5f; 1890 const GLfloat y = (hw_h - h) * 0.5f; 1891 vtx[0] = x; vtx[1] = y; 1892 vtx[2] = x; vtx[3] = y + h; 1893 vtx[4] = x + w; vtx[5] = y + h; 1894 vtx[6] = x + w; vtx[7] = y; 1895 } 1896 }; 1897 1898 class h_stretch { 1899 const GLfloat hw_w, hw_h; 1900 public: 1901 h_stretch(uint32_t hw_w, uint32_t hw_h) 1902 : hw_w(hw_w), hw_h(hw_h) { 1903 } 1904 void operator()(GLfloat* vtx, float v) { 1905 const GLfloat w = hw_w - (hw_w * v); 1906 const GLfloat h = 1.0f; 1907 const GLfloat x = (hw_w - w) * 0.5f; 1908 const GLfloat y = (hw_h - h) * 0.5f; 1909 vtx[0] = x; vtx[1] = y; 1910 vtx[2] = x; vtx[3] = y + h; 1911 vtx[4] = x + w; vtx[5] = y + h; 1912 vtx[6] = x + w; vtx[7] = y; 1913 } 1914 }; 1915 1916 // the full animation is 12 frames 1917 int nbFrames = 8; 1918 s_curve_interpolator itr(nbFrames, 7.5f); 1919 s_curve_interpolator itg(nbFrames, 8.0f); 1920 s_curve_interpolator itb(nbFrames, 8.5f); 1921 1922 h_stretch hverts(hw_w, hw_h); 1923 glDisable(GL_BLEND); 1924 glDisable(GL_TEXTURE_2D); 1925 glColorMask(1,1,1,1); 1926 for (int i=nbFrames-1 ; i>=0 ; i--) { 1927 const float v = itg(i); 1928 hverts(vtx, v); 1929 glClear(GL_COLOR_BUFFER_BIT); 1930 glColor4f(1-v, 1-v, 1-v, 1); 1931 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1932 hw.flip(screenBounds); 1933 } 1934 1935 nbFrames = 4; 1936 v_stretch vverts(hw_w, hw_h); 1937 glEnable(GL_BLEND); 1938 glBlendFunc(GL_ONE, GL_ONE); 1939 for (int i=nbFrames-1 ; i>=0 ; i--) { 1940 float x, y, w, h; 1941 const float vr = itr(i); 1942 const float vg = itg(i); 1943 const float vb = itb(i); 1944 1945 // clear screen 1946 glColorMask(1,1,1,1); 1947 glClear(GL_COLOR_BUFFER_BIT); 1948 glEnable(GL_TEXTURE_2D); 1949 1950 // draw the red plane 1951 vverts(vtx, vr); 1952 glColorMask(1,0,0,1); 1953 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1954 1955 // draw the green plane 1956 vverts(vtx, vg); 1957 glColorMask(0,1,0,1); 1958 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1959 1960 // draw the blue plane 1961 vverts(vtx, vb); 1962 glColorMask(0,0,1,1); 1963 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1964 1965 hw.flip(screenBounds); 1966 } 1967 1968 glColorMask(1,1,1,1); 1969 glEnable(GL_SCISSOR_TEST); 1970 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1971 glDeleteTextures(1, &tname); 1972 1973 return NO_ERROR; 1974} 1975 1976// --------------------------------------------------------------------------- 1977 1978status_t SurfaceFlinger::turnElectronBeamOffImplLocked(int32_t mode) 1979{ 1980 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 1981 if (!hw.canDraw()) { 1982 // we're already off 1983 return NO_ERROR; 1984 } 1985 if (mode & ISurfaceComposer::eElectronBeamAnimationOff) { 1986 electronBeamOffAnimationImplLocked(); 1987 } 1988 1989 // always clear the whole screen at the end of the animation 1990 glClearColor(0,0,0,1); 1991 glDisable(GL_SCISSOR_TEST); 1992 glClear(GL_COLOR_BUFFER_BIT); 1993 glEnable(GL_SCISSOR_TEST); 1994 hw.flip( Region(hw.bounds()) ); 1995 1996 hw.setCanDraw(false); 1997 return NO_ERROR; 1998} 1999 2000status_t SurfaceFlinger::turnElectronBeamOff(int32_t mode) 2001{ 2002 class MessageTurnElectronBeamOff : public MessageBase { 2003 SurfaceFlinger* flinger; 2004 int32_t mode; 2005 status_t result; 2006 public: 2007 MessageTurnElectronBeamOff(SurfaceFlinger* flinger, int32_t mode) 2008 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2009 } 2010 status_t getResult() const { 2011 return result; 2012 } 2013 virtual bool handler() { 2014 Mutex::Autolock _l(flinger->mStateLock); 2015 result = flinger->turnElectronBeamOffImplLocked(mode); 2016 return true; 2017 } 2018 }; 2019 2020 sp<MessageBase> msg = new MessageTurnElectronBeamOff(this, mode); 2021 status_t res = postMessageSync(msg); 2022 if (res == NO_ERROR) { 2023 res = static_cast<MessageTurnElectronBeamOff*>( msg.get() )->getResult(); 2024 2025 // work-around: when the power-manager calls us we activate the 2026 // animation. eventually, the "on" animation will be called 2027 // by the power-manager itself 2028 mElectronBeamAnimationMode = mode; 2029 } 2030 return res; 2031} 2032 2033// --------------------------------------------------------------------------- 2034 2035status_t SurfaceFlinger::turnElectronBeamOnImplLocked(int32_t mode) 2036{ 2037 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2038 if (hw.canDraw()) { 2039 // we're already on 2040 return NO_ERROR; 2041 } 2042 if (mode & ISurfaceComposer::eElectronBeamAnimationOn) { 2043 electronBeamOnAnimationImplLocked(); 2044 } 2045 hw.setCanDraw(true); 2046 2047 // make sure to redraw the whole screen when the animation is done 2048 mDirtyRegion.set(hw.bounds()); 2049 signalEvent(); 2050 2051 return NO_ERROR; 2052} 2053 2054status_t SurfaceFlinger::turnElectronBeamOn(int32_t mode) 2055{ 2056 class MessageTurnElectronBeamOn : public MessageBase { 2057 SurfaceFlinger* flinger; 2058 int32_t mode; 2059 status_t result; 2060 public: 2061 MessageTurnElectronBeamOn(SurfaceFlinger* flinger, int32_t mode) 2062 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2063 } 2064 status_t getResult() const { 2065 return result; 2066 } 2067 virtual bool handler() { 2068 Mutex::Autolock _l(flinger->mStateLock); 2069 result = flinger->turnElectronBeamOnImplLocked(mode); 2070 return true; 2071 } 2072 }; 2073 2074 postMessageAsync( new MessageTurnElectronBeamOn(this, mode) ); 2075 return NO_ERROR; 2076} 2077 2078// --------------------------------------------------------------------------- 2079 2080status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy, 2081 sp<IMemoryHeap>* heap, 2082 uint32_t* w, uint32_t* h, PixelFormat* f, 2083 uint32_t sw, uint32_t sh, 2084 uint32_t minLayerZ, uint32_t maxLayerZ) 2085{ 2086 status_t result = PERMISSION_DENIED; 2087 2088 // only one display supported for now 2089 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2090 return BAD_VALUE; 2091 2092 if (!GLExtensions::getInstance().haveFramebufferObject()) 2093 return INVALID_OPERATION; 2094 2095 // get screen geometry 2096 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 2097 const uint32_t hw_w = hw.getWidth(); 2098 const uint32_t hw_h = hw.getHeight(); 2099 2100 if ((sw > hw_w) || (sh > hw_h)) 2101 return BAD_VALUE; 2102 2103 sw = (!sw) ? hw_w : sw; 2104 sh = (!sh) ? hw_h : sh; 2105 const size_t size = sw * sh * 4; 2106 2107 // make sure to clear all GL error flags 2108 while ( glGetError() != GL_NO_ERROR ) ; 2109 2110 // create a FBO 2111 GLuint name, tname; 2112 glGenRenderbuffersOES(1, &tname); 2113 glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname); 2114 glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh); 2115 glGenFramebuffersOES(1, &name); 2116 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 2117 glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, 2118 GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname); 2119 2120 GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES); 2121 if (status == GL_FRAMEBUFFER_COMPLETE_OES) { 2122 2123 // invert everything, b/c glReadPixel() below will invert the FB 2124 glViewport(0, 0, sw, sh); 2125 glMatrixMode(GL_PROJECTION); 2126 glPushMatrix(); 2127 glLoadIdentity(); 2128 glOrthof(0, hw_w, 0, hw_h, 0, 1); 2129 glMatrixMode(GL_MODELVIEW); 2130 2131 // redraw the screen entirely... 2132 glClearColor(0,0,0,1); 2133 glClear(GL_COLOR_BUFFER_BIT); 2134 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 2135 const size_t count = layers.size(); 2136 for (size_t i=0 ; i<count ; ++i) { 2137 const sp<LayerBase>& layer(layers[i]); 2138 const uint32_t z = layer->drawingState().z; 2139 if (z >= minLayerZ && z <= maxLayerZ) { 2140 layer->drawForSreenShot(); 2141 } 2142 } 2143 2144 // XXX: this is needed on tegra 2145 glScissor(0, 0, sw, sh); 2146 2147 // check for errors and return screen capture 2148 if (glGetError() != GL_NO_ERROR) { 2149 // error while rendering 2150 result = INVALID_OPERATION; 2151 } else { 2152 // allocate shared memory large enough to hold the 2153 // screen capture 2154 sp<MemoryHeapBase> base( 2155 new MemoryHeapBase(size, 0, "screen-capture") ); 2156 void* const ptr = base->getBase(); 2157 if (ptr) { 2158 // capture the screen with glReadPixels() 2159 glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr); 2160 if (glGetError() == GL_NO_ERROR) { 2161 *heap = base; 2162 *w = sw; 2163 *h = sh; 2164 *f = PIXEL_FORMAT_RGBA_8888; 2165 result = NO_ERROR; 2166 } 2167 } else { 2168 result = NO_MEMORY; 2169 } 2170 } 2171 2172 glEnable(GL_SCISSOR_TEST); 2173 glViewport(0, 0, hw_w, hw_h); 2174 glMatrixMode(GL_PROJECTION); 2175 glPopMatrix(); 2176 glMatrixMode(GL_MODELVIEW); 2177 2178 2179 } else { 2180 result = BAD_VALUE; 2181 } 2182 2183 // release FBO resources 2184 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 2185 glDeleteRenderbuffersOES(1, &tname); 2186 glDeleteFramebuffersOES(1, &name); 2187 return result; 2188} 2189 2190 2191status_t SurfaceFlinger::captureScreen(DisplayID dpy, 2192 sp<IMemoryHeap>* heap, 2193 uint32_t* width, uint32_t* height, PixelFormat* format, 2194 uint32_t sw, uint32_t sh, 2195 uint32_t minLayerZ, uint32_t maxLayerZ) 2196{ 2197 // only one display supported for now 2198 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2199 return BAD_VALUE; 2200 2201 if (!GLExtensions::getInstance().haveFramebufferObject()) 2202 return INVALID_OPERATION; 2203 2204 class MessageCaptureScreen : public MessageBase { 2205 SurfaceFlinger* flinger; 2206 DisplayID dpy; 2207 sp<IMemoryHeap>* heap; 2208 uint32_t* w; 2209 uint32_t* h; 2210 PixelFormat* f; 2211 uint32_t sw; 2212 uint32_t sh; 2213 uint32_t minLayerZ; 2214 uint32_t maxLayerZ; 2215 status_t result; 2216 public: 2217 MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy, 2218 sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f, 2219 uint32_t sw, uint32_t sh, 2220 uint32_t minLayerZ, uint32_t maxLayerZ) 2221 : flinger(flinger), dpy(dpy), 2222 heap(heap), w(w), h(h), f(f), sw(sw), sh(sh), 2223 minLayerZ(minLayerZ), maxLayerZ(maxLayerZ), 2224 result(PERMISSION_DENIED) 2225 { 2226 } 2227 status_t getResult() const { 2228 return result; 2229 } 2230 virtual bool handler() { 2231 Mutex::Autolock _l(flinger->mStateLock); 2232 2233 // if we have secure windows, never allow the screen capture 2234 if (flinger->mSecureFrameBuffer) 2235 return true; 2236 2237 result = flinger->captureScreenImplLocked(dpy, 2238 heap, w, h, f, sw, sh, minLayerZ, maxLayerZ); 2239 2240 return true; 2241 } 2242 }; 2243 2244 sp<MessageBase> msg = new MessageCaptureScreen(this, 2245 dpy, heap, width, height, format, sw, sh, minLayerZ, maxLayerZ); 2246 status_t res = postMessageSync(msg); 2247 if (res == NO_ERROR) { 2248 res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult(); 2249 } 2250 return res; 2251} 2252 2253// --------------------------------------------------------------------------- 2254 2255sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const 2256{ 2257 sp<Layer> result; 2258 Mutex::Autolock _l(mStateLock); 2259 result = mLayerMap.valueFor( sur->asBinder() ).promote(); 2260 return result; 2261} 2262 2263// --------------------------------------------------------------------------- 2264 2265Client::Client(const sp<SurfaceFlinger>& flinger) 2266 : mFlinger(flinger), mNameGenerator(1) 2267{ 2268} 2269 2270Client::~Client() 2271{ 2272 const size_t count = mLayers.size(); 2273 for (size_t i=0 ; i<count ; i++) { 2274 sp<LayerBaseClient> layer(mLayers.valueAt(i).promote()); 2275 if (layer != 0) { 2276 mFlinger->removeLayer(layer); 2277 } 2278 } 2279} 2280 2281status_t Client::initCheck() const { 2282 return NO_ERROR; 2283} 2284 2285ssize_t Client::attachLayer(const sp<LayerBaseClient>& layer) 2286{ 2287 int32_t name = android_atomic_inc(&mNameGenerator); 2288 mLayers.add(name, layer); 2289 return name; 2290} 2291 2292void Client::detachLayer(const LayerBaseClient* layer) 2293{ 2294 // we do a linear search here, because this doesn't happen often 2295 const size_t count = mLayers.size(); 2296 for (size_t i=0 ; i<count ; i++) { 2297 if (mLayers.valueAt(i) == layer) { 2298 mLayers.removeItemsAt(i, 1); 2299 break; 2300 } 2301 } 2302} 2303sp<LayerBaseClient> Client::getLayerUser(int32_t i) const { 2304 sp<LayerBaseClient> lbc; 2305 const wp<LayerBaseClient>& layer(mLayers.valueFor(i)); 2306 if (layer != 0) { 2307 lbc = layer.promote(); 2308 LOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i)); 2309 } 2310 return lbc; 2311} 2312 2313sp<IMemoryHeap> Client::getControlBlock() const { 2314 return 0; 2315} 2316ssize_t Client::getTokenForSurface(const sp<ISurface>& sur) const { 2317 return -1; 2318} 2319sp<ISurface> Client::createSurface( 2320 ISurfaceComposerClient::surface_data_t* params, int pid, 2321 const String8& name, 2322 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2323 uint32_t flags) 2324{ 2325 return mFlinger->createSurface(this, pid, name, params, 2326 display, w, h, format, flags); 2327} 2328status_t Client::destroySurface(SurfaceID sid) { 2329 return mFlinger->removeSurface(this, sid); 2330} 2331status_t Client::setState(int32_t count, const layer_state_t* states) { 2332 return mFlinger->setClientState(this, count, states); 2333} 2334 2335// --------------------------------------------------------------------------- 2336 2337UserClient::UserClient(const sp<SurfaceFlinger>& flinger) 2338 : ctrlblk(0), mBitmap(0), mFlinger(flinger) 2339{ 2340 const int pgsize = getpagesize(); 2341 const int cblksize = ((sizeof(SharedClient)+(pgsize-1))&~(pgsize-1)); 2342 2343 mCblkHeap = new MemoryHeapBase(cblksize, 0, 2344 "SurfaceFlinger Client control-block"); 2345 2346 ctrlblk = static_cast<SharedClient *>(mCblkHeap->getBase()); 2347 if (ctrlblk) { // construct the shared structure in-place. 2348 new(ctrlblk) SharedClient; 2349 } 2350} 2351 2352UserClient::~UserClient() 2353{ 2354 if (ctrlblk) { 2355 ctrlblk->~SharedClient(); // destroy our shared-structure. 2356 } 2357 2358 /* 2359 * When a UserClient dies, it's unclear what to do exactly. 2360 * We could go ahead and destroy all surfaces linked to that client 2361 * however, it wouldn't be fair to the main Client 2362 * (usually the the window-manager), which might want to re-target 2363 * the layer to another UserClient. 2364 * I think the best is to do nothing, or not much; in most cases the 2365 * WM itself will go ahead and clean things up when it detects a client of 2366 * his has died. 2367 * The remaining question is what to display? currently we keep 2368 * just keep the current buffer. 2369 */ 2370} 2371 2372status_t UserClient::initCheck() const { 2373 return ctrlblk == 0 ? NO_INIT : NO_ERROR; 2374} 2375 2376void UserClient::detachLayer(const Layer* layer) 2377{ 2378 int32_t name = layer->getToken(); 2379 if (name >= 0) { 2380 int32_t mask = 1LU<<name; 2381 if ((android_atomic_and(~mask, &mBitmap) & mask) == 0) { 2382 LOGW("token %d wasn't marked as used %08x", name, int(mBitmap)); 2383 } 2384 } 2385} 2386 2387sp<IMemoryHeap> UserClient::getControlBlock() const { 2388 return mCblkHeap; 2389} 2390 2391ssize_t UserClient::getTokenForSurface(const sp<ISurface>& sur) const 2392{ 2393 int32_t name = NAME_NOT_FOUND; 2394 sp<Layer> layer(mFlinger->getLayer(sur)); 2395 if (layer == 0) { 2396 return name; 2397 } 2398 2399 // if this layer already has a token, just return it 2400 name = layer->getToken(); 2401 if ((name >= 0) && (layer->getClient() == this)) { 2402 return name; 2403 } 2404 2405 name = 0; 2406 do { 2407 int32_t mask = 1LU<<name; 2408 if ((android_atomic_or(mask, &mBitmap) & mask) == 0) { 2409 // we found and locked that name 2410 status_t err = layer->setToken( 2411 const_cast<UserClient*>(this), ctrlblk, name); 2412 if (err != NO_ERROR) { 2413 // free the name 2414 android_atomic_and(~mask, &mBitmap); 2415 name = err; 2416 } 2417 break; 2418 } 2419 if (++name > 31) 2420 name = NO_MEMORY; 2421 } while(name >= 0); 2422 2423 //LOGD("getTokenForSurface(%p) => %d (client=%p, bitmap=%08lx)", 2424 // sur->asBinder().get(), name, this, mBitmap); 2425 return name; 2426} 2427 2428sp<ISurface> UserClient::createSurface( 2429 ISurfaceComposerClient::surface_data_t* params, int pid, 2430 const String8& name, 2431 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2432 uint32_t flags) { 2433 return 0; 2434} 2435status_t UserClient::destroySurface(SurfaceID sid) { 2436 return INVALID_OPERATION; 2437} 2438status_t UserClient::setState(int32_t count, const layer_state_t* states) { 2439 return INVALID_OPERATION; 2440} 2441 2442// --------------------------------------------------------------------------- 2443 2444GraphicPlane::GraphicPlane() 2445 : mHw(0) 2446{ 2447} 2448 2449GraphicPlane::~GraphicPlane() { 2450 delete mHw; 2451} 2452 2453bool GraphicPlane::initialized() const { 2454 return mHw ? true : false; 2455} 2456 2457int GraphicPlane::getWidth() const { 2458 return mWidth; 2459} 2460 2461int GraphicPlane::getHeight() const { 2462 return mHeight; 2463} 2464 2465void GraphicPlane::setDisplayHardware(DisplayHardware *hw) 2466{ 2467 mHw = hw; 2468 2469 // initialize the display orientation transform. 2470 // it's a constant that should come from the display driver. 2471 int displayOrientation = ISurfaceComposer::eOrientationDefault; 2472 char property[PROPERTY_VALUE_MAX]; 2473 if (property_get("ro.sf.hwrotation", property, NULL) > 0) { 2474 //displayOrientation 2475 switch (atoi(property)) { 2476 case 90: 2477 displayOrientation = ISurfaceComposer::eOrientation90; 2478 break; 2479 case 270: 2480 displayOrientation = ISurfaceComposer::eOrientation270; 2481 break; 2482 } 2483 } 2484 2485 const float w = hw->getWidth(); 2486 const float h = hw->getHeight(); 2487 GraphicPlane::orientationToTransfrom(displayOrientation, w, h, 2488 &mDisplayTransform); 2489 if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) { 2490 mDisplayWidth = h; 2491 mDisplayHeight = w; 2492 } else { 2493 mDisplayWidth = w; 2494 mDisplayHeight = h; 2495 } 2496 2497 setOrientation(ISurfaceComposer::eOrientationDefault); 2498} 2499 2500status_t GraphicPlane::orientationToTransfrom( 2501 int orientation, int w, int h, Transform* tr) 2502{ 2503 uint32_t flags = 0; 2504 switch (orientation) { 2505 case ISurfaceComposer::eOrientationDefault: 2506 flags = Transform::ROT_0; 2507 break; 2508 case ISurfaceComposer::eOrientation90: 2509 flags = Transform::ROT_90; 2510 break; 2511 case ISurfaceComposer::eOrientation180: 2512 flags = Transform::ROT_180; 2513 break; 2514 case ISurfaceComposer::eOrientation270: 2515 flags = Transform::ROT_270; 2516 break; 2517 default: 2518 return BAD_VALUE; 2519 } 2520 tr->set(flags, w, h); 2521 return NO_ERROR; 2522} 2523 2524status_t GraphicPlane::setOrientation(int orientation) 2525{ 2526 // If the rotation can be handled in hardware, this is where 2527 // the magic should happen. 2528 2529 const DisplayHardware& hw(displayHardware()); 2530 const float w = mDisplayWidth; 2531 const float h = mDisplayHeight; 2532 mWidth = int(w); 2533 mHeight = int(h); 2534 2535 Transform orientationTransform; 2536 GraphicPlane::orientationToTransfrom(orientation, w, h, 2537 &orientationTransform); 2538 if (orientation & ISurfaceComposer::eOrientationSwapMask) { 2539 mWidth = int(h); 2540 mHeight = int(w); 2541 } 2542 2543 mOrientation = orientation; 2544 mGlobalTransform = mDisplayTransform * orientationTransform; 2545 return NO_ERROR; 2546} 2547 2548const DisplayHardware& GraphicPlane::displayHardware() const { 2549 return *mHw; 2550} 2551 2552DisplayHardware& GraphicPlane::editDisplayHardware() { 2553 return *mHw; 2554} 2555 2556const Transform& GraphicPlane::transform() const { 2557 return mGlobalTransform; 2558} 2559 2560EGLDisplay GraphicPlane::getEGLDisplay() const { 2561 return mHw->getEGLDisplay(); 2562} 2563 2564// --------------------------------------------------------------------------- 2565 2566}; // namespace android 2567