SurfaceFlinger.cpp revision 0a96e3c31f137fd4e271c1fb2aef9aa0b6e79ce0
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 "LayerBlur.h" 51#include "LayerBuffer.h" 52#include "LayerDim.h" 53#include "SurfaceFlinger.h" 54 55#include "DisplayHardware/DisplayHardware.h" 56#include "DisplayHardware/HWComposer.h" 57 58/* ideally AID_GRAPHICS would be in a semi-public header 59 * or there would be a way to map a user/group name to its id 60 */ 61#ifndef AID_GRAPHICS 62#define AID_GRAPHICS 1003 63#endif 64 65#define DISPLAY_COUNT 1 66 67namespace android { 68// --------------------------------------------------------------------------- 69 70SurfaceFlinger::SurfaceFlinger() 71 : BnSurfaceComposer(), Thread(false), 72 mTransactionFlags(0), 73 mTransactionCount(0), 74 mResizeTransationPending(false), 75 mLayersRemoved(false), 76 mBootTime(systemTime()), 77 mHardwareTest("android.permission.HARDWARE_TEST"), 78 mAccessSurfaceFlinger("android.permission.ACCESS_SURFACE_FLINGER"), 79 mReadFramebuffer("android.permission.READ_FRAME_BUFFER"), 80 mDump("android.permission.DUMP"), 81 mVisibleRegionsDirty(false), 82 mHwWorkListDirty(false), 83 mDeferReleaseConsole(false), 84 mFreezeDisplay(false), 85 mElectronBeamAnimationMode(0), 86 mFreezeCount(0), 87 mFreezeDisplayTime(0), 88 mDebugRegion(0), 89 mDebugBackground(0), 90 mDebugDisableHWC(0), 91 mDebugInSwapBuffers(0), 92 mLastSwapBufferTime(0), 93 mDebugInTransaction(0), 94 mLastTransactionTime(0), 95 mBootFinished(false), 96 mConsoleSignals(0), 97 mSecureFrameBuffer(0) 98{ 99 init(); 100} 101 102void SurfaceFlinger::init() 103{ 104 LOGI("SurfaceFlinger is starting"); 105 106 // debugging stuff... 107 char value[PROPERTY_VALUE_MAX]; 108 property_get("debug.sf.showupdates", value, "0"); 109 mDebugRegion = atoi(value); 110 property_get("debug.sf.showbackground", value, "0"); 111 mDebugBackground = atoi(value); 112 113 LOGI_IF(mDebugRegion, "showupdates enabled"); 114 LOGI_IF(mDebugBackground, "showbackground enabled"); 115} 116 117SurfaceFlinger::~SurfaceFlinger() 118{ 119 glDeleteTextures(1, &mWormholeTexName); 120} 121 122overlay_control_device_t* SurfaceFlinger::getOverlayEngine() const 123{ 124 return graphicPlane(0).displayHardware().getOverlayEngine(); 125} 126 127sp<IMemoryHeap> SurfaceFlinger::getCblk() const 128{ 129 return mServerHeap; 130} 131 132sp<ISurfaceComposerClient> SurfaceFlinger::createConnection() 133{ 134 sp<ISurfaceComposerClient> bclient; 135 sp<Client> client(new Client(this)); 136 status_t err = client->initCheck(); 137 if (err == NO_ERROR) { 138 bclient = client; 139 } 140 return bclient; 141} 142 143sp<ISurfaceComposerClient> SurfaceFlinger::createClientConnection() 144{ 145 sp<ISurfaceComposerClient> bclient; 146 sp<UserClient> client(new UserClient(this)); 147 status_t err = client->initCheck(); 148 if (err == NO_ERROR) { 149 bclient = client; 150 } 151 return bclient; 152} 153 154 155const GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) const 156{ 157 LOGE_IF(uint32_t(dpy) >= DISPLAY_COUNT, "Invalid DisplayID %d", dpy); 158 const GraphicPlane& plane(mGraphicPlanes[dpy]); 159 return plane; 160} 161 162GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) 163{ 164 return const_cast<GraphicPlane&>( 165 const_cast<SurfaceFlinger const *>(this)->graphicPlane(dpy)); 166} 167 168void SurfaceFlinger::bootFinished() 169{ 170 const nsecs_t now = systemTime(); 171 const nsecs_t duration = now - mBootTime; 172 LOGI("Boot is finished (%ld ms)", long(ns2ms(duration)) ); 173 mBootFinished = true; 174 property_set("ctl.stop", "bootanim"); 175} 176 177void SurfaceFlinger::onFirstRef() 178{ 179 run("SurfaceFlinger", PRIORITY_URGENT_DISPLAY); 180 181 // Wait for the main thread to be done with its initialization 182 mReadyToRunBarrier.wait(); 183} 184 185static inline uint16_t pack565(int r, int g, int b) { 186 return (r<<11)|(g<<5)|b; 187} 188 189status_t SurfaceFlinger::readyToRun() 190{ 191 LOGI( "SurfaceFlinger's main thread ready to run. " 192 "Initializing graphics H/W..."); 193 194 // we only support one display currently 195 int dpy = 0; 196 197 { 198 // initialize the main display 199 GraphicPlane& plane(graphicPlane(dpy)); 200 DisplayHardware* const hw = new DisplayHardware(this, dpy); 201 plane.setDisplayHardware(hw); 202 } 203 204 // create the shared control-block 205 mServerHeap = new MemoryHeapBase(4096, 206 MemoryHeapBase::READ_ONLY, "SurfaceFlinger read-only heap"); 207 LOGE_IF(mServerHeap==0, "can't create shared memory dealer"); 208 209 mServerCblk = static_cast<surface_flinger_cblk_t*>(mServerHeap->getBase()); 210 LOGE_IF(mServerCblk==0, "can't get to shared control block's address"); 211 212 new(mServerCblk) surface_flinger_cblk_t; 213 214 // initialize primary screen 215 // (other display should be initialized in the same manner, but 216 // asynchronously, as they could come and go. None of this is supported 217 // yet). 218 const GraphicPlane& plane(graphicPlane(dpy)); 219 const DisplayHardware& hw = plane.displayHardware(); 220 const uint32_t w = hw.getWidth(); 221 const uint32_t h = hw.getHeight(); 222 const uint32_t f = hw.getFormat(); 223 hw.makeCurrent(); 224 225 // initialize the shared control block 226 mServerCblk->connected |= 1<<dpy; 227 display_cblk_t* dcblk = mServerCblk->displays + dpy; 228 memset(dcblk, 0, sizeof(display_cblk_t)); 229 dcblk->w = plane.getWidth(); 230 dcblk->h = plane.getHeight(); 231 dcblk->format = f; 232 dcblk->orientation = ISurfaceComposer::eOrientationDefault; 233 dcblk->xdpi = hw.getDpiX(); 234 dcblk->ydpi = hw.getDpiY(); 235 dcblk->fps = hw.getRefreshRate(); 236 dcblk->density = hw.getDensity(); 237 238 // Initialize OpenGL|ES 239 glPixelStorei(GL_UNPACK_ALIGNMENT, 4); 240 glPixelStorei(GL_PACK_ALIGNMENT, 4); 241 glEnableClientState(GL_VERTEX_ARRAY); 242 glEnable(GL_SCISSOR_TEST); 243 glShadeModel(GL_FLAT); 244 glDisable(GL_DITHER); 245 glDisable(GL_CULL_FACE); 246 247 const uint16_t g0 = pack565(0x0F,0x1F,0x0F); 248 const uint16_t g1 = pack565(0x17,0x2f,0x17); 249 const uint16_t textureData[4] = { g0, g1, g1, g0 }; 250 glGenTextures(1, &mWormholeTexName); 251 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 252 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 253 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 254 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 255 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 256 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, 257 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, textureData); 258 259 glViewport(0, 0, w, h); 260 glMatrixMode(GL_PROJECTION); 261 glLoadIdentity(); 262 glOrthof(0, w, h, 0, 0, 1); 263 264 LayerDim::initDimmer(this, w, h); 265 266 mReadyToRunBarrier.open(); 267 268 /* 269 * We're now ready to accept clients... 270 */ 271 272 // start boot animation 273 property_set("ctl.start", "bootanim"); 274 275 return NO_ERROR; 276} 277 278// ---------------------------------------------------------------------------- 279#if 0 280#pragma mark - 281#pragma mark Events Handler 282#endif 283 284void SurfaceFlinger::waitForEvent() 285{ 286 while (true) { 287 nsecs_t timeout = -1; 288 const nsecs_t freezeDisplayTimeout = ms2ns(5000); 289 if (UNLIKELY(isFrozen())) { 290 // wait 5 seconds 291 const nsecs_t now = systemTime(); 292 if (mFreezeDisplayTime == 0) { 293 mFreezeDisplayTime = now; 294 } 295 nsecs_t waitTime = freezeDisplayTimeout - (now - mFreezeDisplayTime); 296 timeout = waitTime>0 ? waitTime : 0; 297 } 298 299 sp<MessageBase> msg = mEventQueue.waitMessage(timeout); 300 301 // see if we timed out 302 if (isFrozen()) { 303 const nsecs_t now = systemTime(); 304 nsecs_t frozenTime = (now - mFreezeDisplayTime); 305 if (frozenTime >= freezeDisplayTimeout) { 306 // we timed out and are still frozen 307 LOGW("timeout expired mFreezeDisplay=%d, mFreezeCount=%d", 308 mFreezeDisplay, mFreezeCount); 309 mFreezeDisplayTime = 0; 310 mFreezeCount = 0; 311 mFreezeDisplay = false; 312 } 313 } 314 315 if (msg != 0) { 316 switch (msg->what) { 317 case MessageQueue::INVALIDATE: 318 // invalidate message, just return to the main loop 319 return; 320 } 321 } 322 } 323} 324 325void SurfaceFlinger::signalEvent() { 326 mEventQueue.invalidate(); 327} 328 329void SurfaceFlinger::signal() const { 330 // this is the IPC call 331 const_cast<SurfaceFlinger*>(this)->signalEvent(); 332} 333 334status_t SurfaceFlinger::postMessageAsync(const sp<MessageBase>& msg, 335 nsecs_t reltime, uint32_t flags) 336{ 337 return mEventQueue.postMessage(msg, reltime, flags); 338} 339 340status_t SurfaceFlinger::postMessageSync(const sp<MessageBase>& msg, 341 nsecs_t reltime, uint32_t flags) 342{ 343 status_t res = mEventQueue.postMessage(msg, reltime, flags); 344 if (res == NO_ERROR) { 345 msg->wait(); 346 } 347 return res; 348} 349 350// ---------------------------------------------------------------------------- 351#if 0 352#pragma mark - 353#pragma mark Main loop 354#endif 355 356bool SurfaceFlinger::threadLoop() 357{ 358 waitForEvent(); 359 360 // check for transactions 361 if (UNLIKELY(mConsoleSignals)) { 362 handleConsoleEvents(); 363 } 364 365 if (LIKELY(mTransactionCount == 0)) { 366 // if we're in a global transaction, don't do anything. 367 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 368 uint32_t transactionFlags = getTransactionFlags(mask); 369 if (LIKELY(transactionFlags)) { 370 handleTransaction(transactionFlags); 371 } 372 } 373 374 // post surfaces (if needed) 375 handlePageFlip(); 376 377 if (UNLIKELY(mHwWorkListDirty)) { 378 // build the h/w work list 379 handleWorkList(); 380 } 381 382 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 383 if (LIKELY(hw.canDraw() && !isFrozen())) { 384 // repaint the framebuffer (if needed) 385 386 const int index = hw.getCurrentBufferIndex(); 387 GraphicLog& logger(GraphicLog::getInstance()); 388 389 logger.log(GraphicLog::SF_REPAINT, index); 390 handleRepaint(); 391 392 // inform the h/w that we're done compositing 393 logger.log(GraphicLog::SF_COMPOSITION_COMPLETE, index); 394 hw.compositionComplete(); 395 396 logger.log(GraphicLog::SF_SWAP_BUFFERS, index); 397 postFramebuffer(); 398 399 logger.log(GraphicLog::SF_UNLOCK_CLIENTS, index); 400 unlockClients(); 401 402 logger.log(GraphicLog::SF_REPAINT_DONE, index); 403 } else { 404 // pretend we did the post 405 unlockClients(); 406 usleep(16667); // 60 fps period 407 } 408 return true; 409} 410 411void SurfaceFlinger::postFramebuffer() 412{ 413 if (!mInvalidRegion.isEmpty()) { 414 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 415 const nsecs_t now = systemTime(); 416 mDebugInSwapBuffers = now; 417 hw.flip(mInvalidRegion); 418 mLastSwapBufferTime = systemTime() - now; 419 mDebugInSwapBuffers = 0; 420 mInvalidRegion.clear(); 421 } 422} 423 424void SurfaceFlinger::handleConsoleEvents() 425{ 426 // something to do with the console 427 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 428 429 int what = android_atomic_and(0, &mConsoleSignals); 430 if (what & eConsoleAcquired) { 431 hw.acquireScreen(); 432 // this is a temporary work-around, eventually this should be called 433 // by the power-manager 434 SurfaceFlinger::turnElectronBeamOn(mElectronBeamAnimationMode); 435 } 436 437 if (mDeferReleaseConsole && hw.isScreenAcquired()) { 438 // We got the release signal before the acquire signal 439 mDeferReleaseConsole = false; 440 hw.releaseScreen(); 441 } 442 443 if (what & eConsoleReleased) { 444 if (hw.isScreenAcquired()) { 445 hw.releaseScreen(); 446 } else { 447 mDeferReleaseConsole = true; 448 } 449 } 450 451 mDirtyRegion.set(hw.bounds()); 452} 453 454void SurfaceFlinger::handleTransaction(uint32_t transactionFlags) 455{ 456 Vector< sp<LayerBase> > ditchedLayers; 457 458 /* 459 * Perform and commit the transaction 460 */ 461 462 { // scope for the lock 463 Mutex::Autolock _l(mStateLock); 464 const nsecs_t now = systemTime(); 465 mDebugInTransaction = now; 466 handleTransactionLocked(transactionFlags, ditchedLayers); 467 mLastTransactionTime = systemTime() - now; 468 mDebugInTransaction = 0; 469 mHwWorkListDirty = true; 470 // here the transaction has been committed 471 } 472 473 /* 474 * Clean-up all layers that went away 475 * (do this without the lock held) 476 */ 477 478 const size_t count = ditchedLayers.size(); 479 for (size_t i=0 ; i<count ; i++) { 480 if (ditchedLayers[i] != 0) { 481 //LOGD("ditching layer %p", ditchedLayers[i].get()); 482 ditchedLayers[i]->ditch(); 483 } 484 } 485} 486 487void SurfaceFlinger::handleTransactionLocked( 488 uint32_t transactionFlags, Vector< sp<LayerBase> >& ditchedLayers) 489{ 490 const LayerVector& currentLayers(mCurrentState.layersSortedByZ); 491 const size_t count = currentLayers.size(); 492 493 /* 494 * Traversal of the children 495 * (perform the transaction for each of them if needed) 496 */ 497 498 const bool layersNeedTransaction = transactionFlags & eTraversalNeeded; 499 if (layersNeedTransaction) { 500 for (size_t i=0 ; i<count ; i++) { 501 const sp<LayerBase>& layer = currentLayers[i]; 502 uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded); 503 if (!trFlags) continue; 504 505 const uint32_t flags = layer->doTransaction(0); 506 if (flags & Layer::eVisibleRegion) 507 mVisibleRegionsDirty = true; 508 } 509 } 510 511 /* 512 * Perform our own transaction if needed 513 */ 514 515 if (transactionFlags & eTransactionNeeded) { 516 if (mCurrentState.orientation != mDrawingState.orientation) { 517 // the orientation has changed, recompute all visible regions 518 // and invalidate everything. 519 520 const int dpy = 0; 521 const int orientation = mCurrentState.orientation; 522 const uint32_t type = mCurrentState.orientationType; 523 GraphicPlane& plane(graphicPlane(dpy)); 524 plane.setOrientation(orientation); 525 526 // update the shared control block 527 const DisplayHardware& hw(plane.displayHardware()); 528 volatile display_cblk_t* dcblk = mServerCblk->displays + dpy; 529 dcblk->orientation = orientation; 530 dcblk->w = plane.getWidth(); 531 dcblk->h = plane.getHeight(); 532 533 mVisibleRegionsDirty = true; 534 mDirtyRegion.set(hw.bounds()); 535 } 536 537 if (mCurrentState.freezeDisplay != mDrawingState.freezeDisplay) { 538 // freezing or unfreezing the display -> trigger animation if needed 539 mFreezeDisplay = mCurrentState.freezeDisplay; 540 if (mFreezeDisplay) 541 mFreezeDisplayTime = 0; 542 } 543 544 if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) { 545 // layers have been added 546 mVisibleRegionsDirty = true; 547 } 548 549 // some layers might have been removed, so 550 // we need to update the regions they're exposing. 551 if (mLayersRemoved) { 552 mLayersRemoved = false; 553 mVisibleRegionsDirty = true; 554 const LayerVector& previousLayers(mDrawingState.layersSortedByZ); 555 const size_t count = previousLayers.size(); 556 for (size_t i=0 ; i<count ; i++) { 557 const sp<LayerBase>& layer(previousLayers[i]); 558 if (currentLayers.indexOf( layer ) < 0) { 559 // this layer is not visible anymore 560 ditchedLayers.add(layer); 561 mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen); 562 } 563 } 564 } 565 } 566 567 commitTransaction(); 568} 569 570sp<FreezeLock> SurfaceFlinger::getFreezeLock() const 571{ 572 return new FreezeLock(const_cast<SurfaceFlinger *>(this)); 573} 574 575void SurfaceFlinger::computeVisibleRegions( 576 LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion) 577{ 578 const GraphicPlane& plane(graphicPlane(0)); 579 const Transform& planeTransform(plane.transform()); 580 const DisplayHardware& hw(plane.displayHardware()); 581 const Region screenRegion(hw.bounds()); 582 583 Region aboveOpaqueLayers; 584 Region aboveCoveredLayers; 585 Region dirty; 586 587 bool secureFrameBuffer = false; 588 589 size_t i = currentLayers.size(); 590 while (i--) { 591 const sp<LayerBase>& layer = currentLayers[i]; 592 layer->validateVisibility(planeTransform); 593 594 // start with the whole surface at its current location 595 const Layer::State& s(layer->drawingState()); 596 597 /* 598 * opaqueRegion: area of a surface that is fully opaque. 599 */ 600 Region opaqueRegion; 601 602 /* 603 * visibleRegion: area of a surface that is visible on screen 604 * and not fully transparent. This is essentially the layer's 605 * footprint minus the opaque regions above it. 606 * Areas covered by a translucent surface are considered visible. 607 */ 608 Region visibleRegion; 609 610 /* 611 * coveredRegion: area of a surface that is covered by all 612 * visible regions above it (which includes the translucent areas). 613 */ 614 Region coveredRegion; 615 616 617 // handle hidden surfaces by setting the visible region to empty 618 if (LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) { 619 const bool translucent = layer->needsBlending(); 620 const Rect bounds(layer->visibleBounds()); 621 visibleRegion.set(bounds); 622 visibleRegion.andSelf(screenRegion); 623 if (!visibleRegion.isEmpty()) { 624 // Remove the transparent area from the visible region 625 if (translucent) { 626 visibleRegion.subtractSelf(layer->transparentRegionScreen); 627 } 628 629 // compute the opaque region 630 const int32_t layerOrientation = layer->getOrientation(); 631 if (s.alpha==255 && !translucent && 632 ((layerOrientation & Transform::ROT_INVALID) == false)) { 633 // the opaque region is the layer's footprint 634 opaqueRegion = visibleRegion; 635 } 636 } 637 } 638 639 // Clip the covered region to the visible region 640 coveredRegion = aboveCoveredLayers.intersect(visibleRegion); 641 642 // Update aboveCoveredLayers for next (lower) layer 643 aboveCoveredLayers.orSelf(visibleRegion); 644 645 // subtract the opaque region covered by the layers above us 646 visibleRegion.subtractSelf(aboveOpaqueLayers); 647 648 // compute this layer's dirty region 649 if (layer->contentDirty) { 650 // we need to invalidate the whole region 651 dirty = visibleRegion; 652 // as well, as the old visible region 653 dirty.orSelf(layer->visibleRegionScreen); 654 layer->contentDirty = false; 655 } else { 656 /* compute the exposed region: 657 * the exposed region consists of two components: 658 * 1) what's VISIBLE now and was COVERED before 659 * 2) what's EXPOSED now less what was EXPOSED before 660 * 661 * note that (1) is conservative, we start with the whole 662 * visible region but only keep what used to be covered by 663 * something -- which mean it may have been exposed. 664 * 665 * (2) handles areas that were not covered by anything but got 666 * exposed because of a resize. 667 */ 668 const Region newExposed = visibleRegion - coveredRegion; 669 const Region oldVisibleRegion = layer->visibleRegionScreen; 670 const Region oldCoveredRegion = layer->coveredRegionScreen; 671 const Region oldExposed = oldVisibleRegion - oldCoveredRegion; 672 dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed); 673 } 674 dirty.subtractSelf(aboveOpaqueLayers); 675 676 // accumulate to the screen dirty region 677 dirtyRegion.orSelf(dirty); 678 679 // Update aboveOpaqueLayers for next (lower) layer 680 aboveOpaqueLayers.orSelf(opaqueRegion); 681 682 // Store the visible region is screen space 683 layer->setVisibleRegion(visibleRegion); 684 layer->setCoveredRegion(coveredRegion); 685 686 // If a secure layer is partially visible, lock-down the screen! 687 if (layer->isSecure() && !visibleRegion.isEmpty()) { 688 secureFrameBuffer = true; 689 } 690 } 691 692 // invalidate the areas where a layer was removed 693 dirtyRegion.orSelf(mDirtyRegionRemovedLayer); 694 mDirtyRegionRemovedLayer.clear(); 695 696 mSecureFrameBuffer = secureFrameBuffer; 697 opaqueRegion = aboveOpaqueLayers; 698} 699 700 701void SurfaceFlinger::commitTransaction() 702{ 703 mDrawingState = mCurrentState; 704 mResizeTransationPending = false; 705 mTransactionCV.broadcast(); 706} 707 708void SurfaceFlinger::handlePageFlip() 709{ 710 bool visibleRegions = mVisibleRegionsDirty; 711 LayerVector& currentLayers( 712 const_cast<LayerVector&>(mDrawingState.layersSortedByZ)); 713 visibleRegions |= lockPageFlip(currentLayers); 714 715 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 716 const Region screenRegion(hw.bounds()); 717 if (visibleRegions) { 718 Region opaqueRegion; 719 computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion); 720 721 /* 722 * rebuild the visible layer list 723 */ 724 mVisibleLayersSortedByZ.clear(); 725 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 726 size_t count = currentLayers.size(); 727 mVisibleLayersSortedByZ.setCapacity(count); 728 for (size_t i=0 ; i<count ; i++) { 729 if (!currentLayers[i]->visibleRegionScreen.isEmpty()) 730 mVisibleLayersSortedByZ.add(currentLayers[i]); 731 } 732 733 mWormholeRegion = screenRegion.subtract(opaqueRegion); 734 mVisibleRegionsDirty = false; 735 mHwWorkListDirty = true; 736 } 737 738 unlockPageFlip(currentLayers); 739 mDirtyRegion.andSelf(screenRegion); 740} 741 742bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers) 743{ 744 bool recomputeVisibleRegions = false; 745 size_t count = currentLayers.size(); 746 sp<LayerBase> const* layers = currentLayers.array(); 747 for (size_t i=0 ; i<count ; i++) { 748 const sp<LayerBase>& layer(layers[i]); 749 layer->lockPageFlip(recomputeVisibleRegions); 750 } 751 return recomputeVisibleRegions; 752} 753 754void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers) 755{ 756 const GraphicPlane& plane(graphicPlane(0)); 757 const Transform& planeTransform(plane.transform()); 758 size_t count = currentLayers.size(); 759 sp<LayerBase> const* layers = currentLayers.array(); 760 for (size_t i=0 ; i<count ; i++) { 761 const sp<LayerBase>& layer(layers[i]); 762 layer->unlockPageFlip(planeTransform, mDirtyRegion); 763 } 764} 765 766void SurfaceFlinger::handleWorkList() 767{ 768 mHwWorkListDirty = false; 769 HWComposer& hwc(graphicPlane(0).displayHardware().getHwComposer()); 770 if (hwc.initCheck() == NO_ERROR) { 771 const Vector< sp<LayerBase> >& currentLayers(mVisibleLayersSortedByZ); 772 const size_t count = currentLayers.size(); 773 hwc.createWorkList(count); 774 hwc_layer_t* const cur(hwc.getLayers()); 775 for (size_t i=0 ; cur && i<count ; i++) { 776 currentLayers[i]->setGeometry(&cur[i]); 777 if (mDebugDisableHWC) { 778 cur[i].compositionType = HWC_FRAMEBUFFER; 779 cur[i].flags |= HWC_SKIP_LAYER; 780 } 781 } 782 } 783} 784 785void SurfaceFlinger::handleRepaint() 786{ 787 // compute the invalid region 788 mInvalidRegion.orSelf(mDirtyRegion); 789 if (mInvalidRegion.isEmpty()) { 790 // nothing to do 791 return; 792 } 793 794 if (UNLIKELY(mDebugRegion)) { 795 debugFlashRegions(); 796 } 797 798 // set the frame buffer 799 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 800 glMatrixMode(GL_MODELVIEW); 801 glLoadIdentity(); 802 803 uint32_t flags = hw.getFlags(); 804 if ((flags & DisplayHardware::SWAP_RECTANGLE) || 805 (flags & DisplayHardware::BUFFER_PRESERVED)) 806 { 807 // we can redraw only what's dirty, but since SWAP_RECTANGLE only 808 // takes a rectangle, we must make sure to update that whole 809 // rectangle in that case 810 if (flags & DisplayHardware::SWAP_RECTANGLE) { 811 // TODO: we really should be able to pass a region to 812 // SWAP_RECTANGLE so that we don't have to redraw all this. 813 mDirtyRegion.set(mInvalidRegion.bounds()); 814 } else { 815 // in the BUFFER_PRESERVED case, obviously, we can update only 816 // what's needed and nothing more. 817 // NOTE: this is NOT a common case, as preserving the backbuffer 818 // is costly and usually involves copying the whole update back. 819 } 820 } else { 821 if (flags & DisplayHardware::PARTIAL_UPDATES) { 822 // We need to redraw the rectangle that will be updated 823 // (pushed to the framebuffer). 824 // This is needed because PARTIAL_UPDATES only takes one 825 // rectangle instead of a region (see DisplayHardware::flip()) 826 mDirtyRegion.set(mInvalidRegion.bounds()); 827 } else { 828 // we need to redraw everything (the whole screen) 829 mDirtyRegion.set(hw.bounds()); 830 mInvalidRegion = mDirtyRegion; 831 } 832 } 833 834 // compose all surfaces 835 composeSurfaces(mDirtyRegion); 836 837 // clear the dirty regions 838 mDirtyRegion.clear(); 839} 840 841void SurfaceFlinger::composeSurfaces(const Region& dirty) 842{ 843 if (UNLIKELY(!mWormholeRegion.isEmpty())) { 844 // should never happen unless the window manager has a bug 845 // draw something... 846 drawWormhole(); 847 } 848 849 status_t err = NO_ERROR; 850 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 851 size_t count = layers.size(); 852 853 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 854 HWComposer& hwc(hw.getHwComposer()); 855 hwc_layer_t* const cur(hwc.getLayers()); 856 857 LOGE_IF(cur && hwc.getNumLayers() != count, 858 "HAL number of layers (%d) doesn't match surfaceflinger (%d)", 859 hwc.getNumLayers(), count); 860 861 // just to be extra-safe, use the smallest count 862 if (hwc.initCheck() == NO_ERROR) { 863 count = count < hwc.getNumLayers() ? count : hwc.getNumLayers(); 864 } 865 866 /* 867 * update the per-frame h/w composer data for each layer 868 * and build the transparent region of the FB 869 */ 870 Region transparent; 871 if (cur) { 872 for (size_t i=0 ; i<count ; i++) { 873 const sp<LayerBase>& layer(layers[i]); 874 layer->setPerFrameData(&cur[i]); 875 if (cur[i].hints & HWC_HINT_CLEAR_FB) { 876 if (!(layer->needsBlending())) { 877 transparent.orSelf(layer->visibleRegionScreen); 878 } 879 } 880 } 881 err = hwc.prepare(); 882 LOGE_IF(err, "HWComposer::prepare failed (%s)", strerror(-err)); 883 } 884 885 /* 886 * clear the area of the FB that need to be transparent 887 */ 888 transparent.andSelf(dirty); 889 if (!transparent.isEmpty()) { 890 glClearColor(0,0,0,0); 891 Region::const_iterator it = transparent.begin(); 892 Region::const_iterator const end = transparent.end(); 893 const int32_t height = hw.getHeight(); 894 while (it != end) { 895 const Rect& r(*it++); 896 const GLint sy = height - (r.top + r.height()); 897 glScissor(r.left, sy, r.width(), r.height()); 898 glClear(GL_COLOR_BUFFER_BIT); 899 } 900 } 901 902 903 /* 904 * and then, render the layers targeted at the framebuffer 905 */ 906 for (size_t i=0 ; i<count ; i++) { 907 if (cur) { 908 if ((cur[i].compositionType != HWC_FRAMEBUFFER) && 909 !(cur[i].flags & HWC_SKIP_LAYER)) { 910 // skip layers handled by the HAL 911 continue; 912 } 913 } 914 915 const sp<LayerBase>& layer(layers[i]); 916 const Region clip(dirty.intersect(layer->visibleRegionScreen)); 917 if (!clip.isEmpty()) { 918 layer->draw(clip); 919 } 920 } 921} 922 923void SurfaceFlinger::unlockClients() 924{ 925 const LayerVector& drawingLayers(mDrawingState.layersSortedByZ); 926 const size_t count = drawingLayers.size(); 927 sp<LayerBase> const* const layers = drawingLayers.array(); 928 for (size_t i=0 ; i<count ; ++i) { 929 const sp<LayerBase>& layer = layers[i]; 930 layer->finishPageFlip(); 931 } 932} 933 934void SurfaceFlinger::debugFlashRegions() 935{ 936 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 937 const uint32_t flags = hw.getFlags(); 938 939 if (!((flags & DisplayHardware::SWAP_RECTANGLE) || 940 (flags & DisplayHardware::BUFFER_PRESERVED))) { 941 const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ? 942 mDirtyRegion.bounds() : hw.bounds()); 943 composeSurfaces(repaint); 944 } 945 946 TextureManager::deactivateTextures(); 947 948 glDisable(GL_BLEND); 949 glDisable(GL_DITHER); 950 glDisable(GL_SCISSOR_TEST); 951 952 static int toggle = 0; 953 toggle = 1 - toggle; 954 if (toggle) { 955 glColor4f(1, 0, 1, 1); 956 } else { 957 glColor4f(1, 1, 0, 1); 958 } 959 960 Region::const_iterator it = mDirtyRegion.begin(); 961 Region::const_iterator const end = mDirtyRegion.end(); 962 while (it != end) { 963 const Rect& r = *it++; 964 GLfloat vertices[][2] = { 965 { r.left, r.top }, 966 { r.left, r.bottom }, 967 { r.right, r.bottom }, 968 { r.right, r.top } 969 }; 970 glVertexPointer(2, GL_FLOAT, 0, vertices); 971 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 972 } 973 974 if (mInvalidRegion.isEmpty()) { 975 mDirtyRegion.dump("mDirtyRegion"); 976 mInvalidRegion.dump("mInvalidRegion"); 977 } 978 hw.flip(mInvalidRegion); 979 980 if (mDebugRegion > 1) 981 usleep(mDebugRegion * 1000); 982 983 glEnable(GL_SCISSOR_TEST); 984 //mDirtyRegion.dump("mDirtyRegion"); 985} 986 987void SurfaceFlinger::drawWormhole() const 988{ 989 const Region region(mWormholeRegion.intersect(mDirtyRegion)); 990 if (region.isEmpty()) 991 return; 992 993 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 994 const int32_t width = hw.getWidth(); 995 const int32_t height = hw.getHeight(); 996 997 glDisable(GL_BLEND); 998 glDisable(GL_DITHER); 999 1000 if (LIKELY(!mDebugBackground)) { 1001 glClearColor(0,0,0,0); 1002 Region::const_iterator it = region.begin(); 1003 Region::const_iterator const end = region.end(); 1004 while (it != end) { 1005 const Rect& r = *it++; 1006 const GLint sy = height - (r.top + r.height()); 1007 glScissor(r.left, sy, r.width(), r.height()); 1008 glClear(GL_COLOR_BUFFER_BIT); 1009 } 1010 } else { 1011 const GLshort vertices[][2] = { { 0, 0 }, { width, 0 }, 1012 { width, height }, { 0, height } }; 1013 const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } }; 1014 glVertexPointer(2, GL_SHORT, 0, vertices); 1015 glTexCoordPointer(2, GL_SHORT, 0, tcoords); 1016 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1017#if defined(GL_OES_EGL_image_external) 1018 if (GLExtensions::getInstance().haveTextureExternal()) { 1019 glDisable(GL_TEXTURE_EXTERNAL_OES); 1020 } 1021#endif 1022 glEnable(GL_TEXTURE_2D); 1023 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 1024 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1025 glMatrixMode(GL_TEXTURE); 1026 glLoadIdentity(); 1027 glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1); 1028 Region::const_iterator it = region.begin(); 1029 Region::const_iterator const end = region.end(); 1030 while (it != end) { 1031 const Rect& r = *it++; 1032 const GLint sy = height - (r.top + r.height()); 1033 glScissor(r.left, sy, r.width(), r.height()); 1034 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1035 } 1036 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1037 } 1038} 1039 1040void SurfaceFlinger::debugShowFPS() const 1041{ 1042 static int mFrameCount; 1043 static int mLastFrameCount = 0; 1044 static nsecs_t mLastFpsTime = 0; 1045 static float mFps = 0; 1046 mFrameCount++; 1047 nsecs_t now = systemTime(); 1048 nsecs_t diff = now - mLastFpsTime; 1049 if (diff > ms2ns(250)) { 1050 mFps = ((mFrameCount - mLastFrameCount) * float(s2ns(1))) / diff; 1051 mLastFpsTime = now; 1052 mLastFrameCount = mFrameCount; 1053 } 1054 // XXX: mFPS has the value we want 1055 } 1056 1057status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer) 1058{ 1059 Mutex::Autolock _l(mStateLock); 1060 addLayer_l(layer); 1061 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1062 return NO_ERROR; 1063} 1064 1065status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer) 1066{ 1067 ssize_t i = mCurrentState.layersSortedByZ.add(layer); 1068 return (i < 0) ? status_t(i) : status_t(NO_ERROR); 1069} 1070 1071ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client, 1072 const sp<LayerBaseClient>& lbc) 1073{ 1074 Mutex::Autolock _l(mStateLock); 1075 1076 // attach this layer to the client 1077 ssize_t name = client->attachLayer(lbc); 1078 1079 // add this layer to the current state list 1080 addLayer_l(lbc); 1081 1082 return name; 1083} 1084 1085status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer) 1086{ 1087 Mutex::Autolock _l(mStateLock); 1088 status_t err = purgatorizeLayer_l(layer); 1089 if (err == NO_ERROR) 1090 setTransactionFlags(eTransactionNeeded); 1091 return err; 1092} 1093 1094status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase) 1095{ 1096 sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient()); 1097 if (lbc != 0) { 1098 mLayerMap.removeItem( lbc->getSurface()->asBinder() ); 1099 } 1100 ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase); 1101 if (index >= 0) { 1102 mLayersRemoved = true; 1103 return NO_ERROR; 1104 } 1105 return status_t(index); 1106} 1107 1108status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase) 1109{ 1110 // remove the layer from the main list (through a transaction). 1111 ssize_t err = removeLayer_l(layerBase); 1112 1113 layerBase->onRemoved(); 1114 1115 // it's possible that we don't find a layer, because it might 1116 // have been destroyed already -- this is not technically an error 1117 // from the user because there is a race between Client::destroySurface(), 1118 // ~Client() and ~ISurface(). 1119 return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err; 1120} 1121 1122status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer) 1123{ 1124 layer->forceVisibilityTransaction(); 1125 setTransactionFlags(eTraversalNeeded); 1126 return NO_ERROR; 1127} 1128 1129uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags) 1130{ 1131 return android_atomic_and(~flags, &mTransactionFlags) & flags; 1132} 1133 1134uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags) 1135{ 1136 uint32_t old = android_atomic_or(flags, &mTransactionFlags); 1137 if ((old & flags)==0) { // wake the server up 1138 signalEvent(); 1139 } 1140 return old; 1141} 1142 1143void SurfaceFlinger::openGlobalTransaction() 1144{ 1145 android_atomic_inc(&mTransactionCount); 1146} 1147 1148void SurfaceFlinger::closeGlobalTransaction() 1149{ 1150 if (android_atomic_dec(&mTransactionCount) == 1) { 1151 signalEvent(); 1152 1153 // if there is a transaction with a resize, wait for it to 1154 // take effect before returning. 1155 Mutex::Autolock _l(mStateLock); 1156 while (mResizeTransationPending) { 1157 status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5)); 1158 if (CC_UNLIKELY(err != NO_ERROR)) { 1159 // just in case something goes wrong in SF, return to the 1160 // called after a few seconds. 1161 LOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!"); 1162 mResizeTransationPending = false; 1163 break; 1164 } 1165 } 1166 } 1167} 1168 1169status_t SurfaceFlinger::freezeDisplay(DisplayID dpy, uint32_t flags) 1170{ 1171 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1172 return BAD_VALUE; 1173 1174 Mutex::Autolock _l(mStateLock); 1175 mCurrentState.freezeDisplay = 1; 1176 setTransactionFlags(eTransactionNeeded); 1177 1178 // flags is intended to communicate some sort of animation behavior 1179 // (for instance fading) 1180 return NO_ERROR; 1181} 1182 1183status_t SurfaceFlinger::unfreezeDisplay(DisplayID dpy, uint32_t flags) 1184{ 1185 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1186 return BAD_VALUE; 1187 1188 Mutex::Autolock _l(mStateLock); 1189 mCurrentState.freezeDisplay = 0; 1190 setTransactionFlags(eTransactionNeeded); 1191 1192 // flags is intended to communicate some sort of animation behavior 1193 // (for instance fading) 1194 return NO_ERROR; 1195} 1196 1197int SurfaceFlinger::setOrientation(DisplayID dpy, 1198 int orientation, uint32_t flags) 1199{ 1200 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1201 return BAD_VALUE; 1202 1203 Mutex::Autolock _l(mStateLock); 1204 if (mCurrentState.orientation != orientation) { 1205 if (uint32_t(orientation)<=eOrientation270 || orientation==42) { 1206 mCurrentState.orientationType = flags; 1207 mCurrentState.orientation = orientation; 1208 setTransactionFlags(eTransactionNeeded); 1209 mTransactionCV.wait(mStateLock); 1210 } else { 1211 orientation = BAD_VALUE; 1212 } 1213 } 1214 return orientation; 1215} 1216 1217sp<ISurface> SurfaceFlinger::createSurface(const sp<Client>& client, int pid, 1218 const String8& name, ISurfaceComposerClient::surface_data_t* params, 1219 DisplayID d, uint32_t w, uint32_t h, PixelFormat format, 1220 uint32_t flags) 1221{ 1222 sp<LayerBaseClient> layer; 1223 sp<LayerBaseClient::Surface> surfaceHandle; 1224 1225 if (int32_t(w|h) < 0) { 1226 LOGE("createSurface() failed, w or h is negative (w=%d, h=%d)", 1227 int(w), int(h)); 1228 return surfaceHandle; 1229 } 1230 1231 //LOGD("createSurface for pid %d (%d x %d)", pid, w, h); 1232 sp<Layer> normalLayer; 1233 switch (flags & eFXSurfaceMask) { 1234 case eFXSurfaceNormal: 1235#if HAS_PUSH_BUFFERS 1236 if (UNLIKELY(flags & ePushBuffers)) { 1237 layer = createPushBuffersSurface(client, d, w, h, flags); 1238 } else 1239#endif 1240 { 1241 normalLayer = createNormalSurface(client, d, w, h, flags, format); 1242 layer = normalLayer; 1243 } 1244 break; 1245 case eFXSurfaceBlur: 1246 layer = createBlurSurface(client, d, w, h, flags); 1247 break; 1248 case eFXSurfaceDim: 1249 layer = createDimSurface(client, d, w, h, flags); 1250 break; 1251 } 1252 1253 if (layer != 0) { 1254 layer->initStates(w, h, flags); 1255 layer->setName(name); 1256 ssize_t token = addClientLayer(client, layer); 1257 1258 surfaceHandle = layer->getSurface(); 1259 if (surfaceHandle != 0) { 1260 params->token = token; 1261 params->identity = surfaceHandle->getIdentity(); 1262 params->width = w; 1263 params->height = h; 1264 params->format = format; 1265 if (normalLayer != 0) { 1266 Mutex::Autolock _l(mStateLock); 1267 mLayerMap.add(surfaceHandle->asBinder(), normalLayer); 1268 } 1269 } 1270 1271 setTransactionFlags(eTransactionNeeded); 1272 } 1273 1274 return surfaceHandle; 1275} 1276 1277sp<Layer> SurfaceFlinger::createNormalSurface( 1278 const sp<Client>& client, DisplayID display, 1279 uint32_t w, uint32_t h, uint32_t flags, 1280 PixelFormat& format) 1281{ 1282 // initialize the surfaces 1283 switch (format) { // TODO: take h/w into account 1284 case PIXEL_FORMAT_TRANSPARENT: 1285 case PIXEL_FORMAT_TRANSLUCENT: 1286 format = PIXEL_FORMAT_RGBA_8888; 1287 break; 1288 case PIXEL_FORMAT_OPAQUE: 1289#ifdef NO_RGBX_8888 1290 format = PIXEL_FORMAT_RGB_565; 1291#else 1292 format = PIXEL_FORMAT_RGBX_8888; 1293#endif 1294 break; 1295 } 1296 1297#ifdef NO_RGBX_8888 1298 if (format == PIXEL_FORMAT_RGBX_8888) 1299 format = PIXEL_FORMAT_RGBA_8888; 1300#endif 1301 1302 sp<Layer> layer = new Layer(this, display, client); 1303 status_t err = layer->setBuffers(w, h, format, flags); 1304 if (LIKELY(err != NO_ERROR)) { 1305 LOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err)); 1306 layer.clear(); 1307 } 1308 return layer; 1309} 1310 1311sp<LayerBlur> SurfaceFlinger::createBlurSurface( 1312 const sp<Client>& client, DisplayID display, 1313 uint32_t w, uint32_t h, uint32_t flags) 1314{ 1315 sp<LayerBlur> layer = new LayerBlur(this, display, client); 1316 layer->initStates(w, h, flags); 1317 return layer; 1318} 1319 1320sp<LayerDim> SurfaceFlinger::createDimSurface( 1321 const sp<Client>& client, DisplayID display, 1322 uint32_t w, uint32_t h, uint32_t flags) 1323{ 1324 sp<LayerDim> layer = new LayerDim(this, display, client); 1325 layer->initStates(w, h, flags); 1326 return layer; 1327} 1328 1329sp<LayerBuffer> SurfaceFlinger::createPushBuffersSurface( 1330 const sp<Client>& client, DisplayID display, 1331 uint32_t w, uint32_t h, uint32_t flags) 1332{ 1333 sp<LayerBuffer> layer = new LayerBuffer(this, display, client); 1334 layer->initStates(w, h, flags); 1335 return layer; 1336} 1337 1338status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid) 1339{ 1340 /* 1341 * called by the window manager, when a surface should be marked for 1342 * destruction. 1343 * 1344 * The surface is removed from the current and drawing lists, but placed 1345 * in the purgatory queue, so it's not destroyed right-away (we need 1346 * to wait for all client's references to go away first). 1347 */ 1348 1349 status_t err = NAME_NOT_FOUND; 1350 Mutex::Autolock _l(mStateLock); 1351 sp<LayerBaseClient> layer = client->getLayerUser(sid); 1352 if (layer != 0) { 1353 err = purgatorizeLayer_l(layer); 1354 if (err == NO_ERROR) { 1355 setTransactionFlags(eTransactionNeeded); 1356 } 1357 } 1358 return err; 1359} 1360 1361status_t SurfaceFlinger::destroySurface(const sp<LayerBaseClient>& layer) 1362{ 1363 // called by ~ISurface() when all references are gone 1364 1365 class MessageDestroySurface : public MessageBase { 1366 SurfaceFlinger* flinger; 1367 sp<LayerBaseClient> layer; 1368 public: 1369 MessageDestroySurface( 1370 SurfaceFlinger* flinger, const sp<LayerBaseClient>& layer) 1371 : flinger(flinger), layer(layer) { } 1372 virtual bool handler() { 1373 sp<LayerBaseClient> l(layer); 1374 layer.clear(); // clear it outside of the lock; 1375 Mutex::Autolock _l(flinger->mStateLock); 1376 /* 1377 * remove the layer from the current list -- chances are that it's 1378 * not in the list anyway, because it should have been removed 1379 * already upon request of the client (eg: window manager). 1380 * However, a buggy client could have not done that. 1381 * Since we know we don't have any more clients, we don't need 1382 * to use the purgatory. 1383 */ 1384 status_t err = flinger->removeLayer_l(l); 1385 LOGE_IF(err<0 && err != NAME_NOT_FOUND, 1386 "error removing layer=%p (%s)", l.get(), strerror(-err)); 1387 return true; 1388 } 1389 }; 1390 1391 postMessageAsync( new MessageDestroySurface(this, layer) ); 1392 return NO_ERROR; 1393} 1394 1395status_t SurfaceFlinger::setClientState( 1396 const sp<Client>& client, 1397 int32_t count, 1398 const layer_state_t* states) 1399{ 1400 Mutex::Autolock _l(mStateLock); 1401 uint32_t flags = 0; 1402 for (int i=0 ; i<count ; i++) { 1403 const layer_state_t& s(states[i]); 1404 sp<LayerBaseClient> layer(client->getLayerUser(s.surface)); 1405 if (layer != 0) { 1406 const uint32_t what = s.what; 1407 if (what & ePositionChanged) { 1408 if (layer->setPosition(s.x, s.y)) 1409 flags |= eTraversalNeeded; 1410 } 1411 if (what & eLayerChanged) { 1412 ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer); 1413 if (layer->setLayer(s.z)) { 1414 mCurrentState.layersSortedByZ.removeAt(idx); 1415 mCurrentState.layersSortedByZ.add(layer); 1416 // we need traversal (state changed) 1417 // AND transaction (list changed) 1418 flags |= eTransactionNeeded|eTraversalNeeded; 1419 } 1420 } 1421 if (what & eSizeChanged) { 1422 if (layer->setSize(s.w, s.h)) { 1423 flags |= eTraversalNeeded; 1424 mResizeTransationPending = true; 1425 } 1426 } 1427 if (what & eAlphaChanged) { 1428 if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f))) 1429 flags |= eTraversalNeeded; 1430 } 1431 if (what & eMatrixChanged) { 1432 if (layer->setMatrix(s.matrix)) 1433 flags |= eTraversalNeeded; 1434 } 1435 if (what & eTransparentRegionChanged) { 1436 if (layer->setTransparentRegionHint(s.transparentRegion)) 1437 flags |= eTraversalNeeded; 1438 } 1439 if (what & eVisibilityChanged) { 1440 if (layer->setFlags(s.flags, s.mask)) 1441 flags |= eTraversalNeeded; 1442 } 1443 } 1444 } 1445 if (flags) { 1446 setTransactionFlags(flags); 1447 } 1448 return NO_ERROR; 1449} 1450 1451void SurfaceFlinger::screenReleased(int dpy) 1452{ 1453 // this may be called by a signal handler, we can't do too much in here 1454 android_atomic_or(eConsoleReleased, &mConsoleSignals); 1455 signalEvent(); 1456} 1457 1458void SurfaceFlinger::screenAcquired(int dpy) 1459{ 1460 // this may be called by a signal handler, we can't do too much in here 1461 android_atomic_or(eConsoleAcquired, &mConsoleSignals); 1462 signalEvent(); 1463} 1464 1465status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args) 1466{ 1467 const size_t SIZE = 1024; 1468 char buffer[SIZE]; 1469 String8 result; 1470 if (!mDump.checkCalling()) { 1471 snprintf(buffer, SIZE, "Permission Denial: " 1472 "can't dump SurfaceFlinger from pid=%d, uid=%d\n", 1473 IPCThreadState::self()->getCallingPid(), 1474 IPCThreadState::self()->getCallingUid()); 1475 result.append(buffer); 1476 } else { 1477 1478 // figure out if we're stuck somewhere 1479 const nsecs_t now = systemTime(); 1480 const nsecs_t inSwapBuffers(mDebugInSwapBuffers); 1481 const nsecs_t inTransaction(mDebugInTransaction); 1482 nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0; 1483 nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0; 1484 1485 // Try to get the main lock, but don't insist if we can't 1486 // (this would indicate SF is stuck, but we want to be able to 1487 // print something in dumpsys). 1488 int retry = 3; 1489 while (mStateLock.tryLock()<0 && --retry>=0) { 1490 usleep(1000000); 1491 } 1492 const bool locked(retry >= 0); 1493 if (!locked) { 1494 snprintf(buffer, SIZE, 1495 "SurfaceFlinger appears to be unresponsive, " 1496 "dumping anyways (no locks held)\n"); 1497 result.append(buffer); 1498 } 1499 1500 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1501 const size_t count = currentLayers.size(); 1502 for (size_t i=0 ; i<count ; i++) { 1503 const sp<LayerBase>& layer(currentLayers[i]); 1504 layer->dump(result, buffer, SIZE); 1505 const Layer::State& s(layer->drawingState()); 1506 s.transparentRegion.dump(result, "transparentRegion"); 1507 layer->transparentRegionScreen.dump(result, "transparentRegionScreen"); 1508 layer->visibleRegionScreen.dump(result, "visibleRegionScreen"); 1509 } 1510 1511 mWormholeRegion.dump(result, "WormholeRegion"); 1512 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1513 snprintf(buffer, SIZE, 1514 " display frozen: %s, freezeCount=%d, orientation=%d, canDraw=%d\n", 1515 mFreezeDisplay?"yes":"no", mFreezeCount, 1516 mCurrentState.orientation, hw.canDraw()); 1517 result.append(buffer); 1518 snprintf(buffer, SIZE, 1519 " last eglSwapBuffers() time: %f us\n" 1520 " last transaction time : %f us\n", 1521 mLastSwapBufferTime/1000.0, mLastTransactionTime/1000.0); 1522 result.append(buffer); 1523 1524 if (inSwapBuffersDuration || !locked) { 1525 snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n", 1526 inSwapBuffersDuration/1000.0); 1527 result.append(buffer); 1528 } 1529 1530 if (inTransactionDuration || !locked) { 1531 snprintf(buffer, SIZE, " transaction time: %f us\n", 1532 inTransactionDuration/1000.0); 1533 result.append(buffer); 1534 } 1535 1536 HWComposer& hwc(hw.getHwComposer()); 1537 snprintf(buffer, SIZE, " h/w composer %s and %s\n", 1538 hwc.initCheck()==NO_ERROR ? "present" : "not present", 1539 mDebugDisableHWC ? "disabled" : "enabled"); 1540 result.append(buffer); 1541 hwc.dump(result, buffer, SIZE); 1542 1543 const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get()); 1544 alloc.dump(result); 1545 1546 if (locked) { 1547 mStateLock.unlock(); 1548 } 1549 } 1550 write(fd, result.string(), result.size()); 1551 return NO_ERROR; 1552} 1553 1554status_t SurfaceFlinger::onTransact( 1555 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1556{ 1557 switch (code) { 1558 case CREATE_CONNECTION: 1559 case OPEN_GLOBAL_TRANSACTION: 1560 case CLOSE_GLOBAL_TRANSACTION: 1561 case SET_ORIENTATION: 1562 case FREEZE_DISPLAY: 1563 case UNFREEZE_DISPLAY: 1564 case BOOT_FINISHED: 1565 case TURN_ELECTRON_BEAM_OFF: 1566 case TURN_ELECTRON_BEAM_ON: 1567 { 1568 // codes that require permission check 1569 IPCThreadState* ipc = IPCThreadState::self(); 1570 const int pid = ipc->getCallingPid(); 1571 const int uid = ipc->getCallingUid(); 1572 if ((uid != AID_GRAPHICS) && !mAccessSurfaceFlinger.check(pid, uid)) { 1573 LOGE("Permission Denial: " 1574 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1575 return PERMISSION_DENIED; 1576 } 1577 break; 1578 } 1579 case CAPTURE_SCREEN: 1580 { 1581 // codes that require permission check 1582 IPCThreadState* ipc = IPCThreadState::self(); 1583 const int pid = ipc->getCallingPid(); 1584 const int uid = ipc->getCallingUid(); 1585 if ((uid != AID_GRAPHICS) && !mReadFramebuffer.check(pid, uid)) { 1586 LOGE("Permission Denial: " 1587 "can't read framebuffer pid=%d, uid=%d", pid, uid); 1588 return PERMISSION_DENIED; 1589 } 1590 break; 1591 } 1592 } 1593 1594 status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags); 1595 if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) { 1596 CHECK_INTERFACE(ISurfaceComposer, data, reply); 1597 if (UNLIKELY(!mHardwareTest.checkCalling())) { 1598 IPCThreadState* ipc = IPCThreadState::self(); 1599 const int pid = ipc->getCallingPid(); 1600 const int uid = ipc->getCallingUid(); 1601 LOGE("Permission Denial: " 1602 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1603 return PERMISSION_DENIED; 1604 } 1605 int n; 1606 switch (code) { 1607 case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE 1608 case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE 1609 return NO_ERROR; 1610 case 1002: // SHOW_UPDATES 1611 n = data.readInt32(); 1612 mDebugRegion = n ? n : (mDebugRegion ? 0 : 1); 1613 return NO_ERROR; 1614 case 1003: // SHOW_BACKGROUND 1615 n = data.readInt32(); 1616 mDebugBackground = n ? 1 : 0; 1617 return NO_ERROR; 1618 case 1008: // toggle use of hw composer 1619 n = data.readInt32(); 1620 mDebugDisableHWC = n ? 1 : 0; 1621 mHwWorkListDirty = true; 1622 // fall-through... 1623 case 1004:{ // repaint everything 1624 Mutex::Autolock _l(mStateLock); 1625 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1626 mDirtyRegion.set(hw.bounds()); // careful that's not thread-safe 1627 signalEvent(); 1628 return NO_ERROR; 1629 } 1630 case 1005:{ // force transaction 1631 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1632 return NO_ERROR; 1633 } 1634 case 1006:{ // enable/disable GraphicLog 1635 int enabled = data.readInt32(); 1636 GraphicLog::getInstance().setEnabled(enabled); 1637 return NO_ERROR; 1638 } 1639 case 1007: // set mFreezeCount 1640 mFreezeCount = data.readInt32(); 1641 mFreezeDisplayTime = 0; 1642 return NO_ERROR; 1643 case 1010: // interrogate. 1644 reply->writeInt32(0); 1645 reply->writeInt32(0); 1646 reply->writeInt32(mDebugRegion); 1647 reply->writeInt32(mDebugBackground); 1648 return NO_ERROR; 1649 case 1013: { 1650 Mutex::Autolock _l(mStateLock); 1651 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1652 reply->writeInt32(hw.getPageFlipCount()); 1653 } 1654 return NO_ERROR; 1655 } 1656 } 1657 return err; 1658} 1659 1660// --------------------------------------------------------------------------- 1661 1662status_t SurfaceFlinger::renderScreenToTextureLocked(DisplayID dpy, 1663 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1664{ 1665 if (!GLExtensions::getInstance().haveFramebufferObject()) 1666 return INVALID_OPERATION; 1667 1668 // get screen geometry 1669 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 1670 const uint32_t hw_w = hw.getWidth(); 1671 const uint32_t hw_h = hw.getHeight(); 1672 GLfloat u = 1; 1673 GLfloat v = 1; 1674 1675 // make sure to clear all GL error flags 1676 while ( glGetError() != GL_NO_ERROR ) ; 1677 1678 // create a FBO 1679 GLuint name, tname; 1680 glGenTextures(1, &tname); 1681 glBindTexture(GL_TEXTURE_2D, tname); 1682 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1683 hw_w, hw_h, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1684 if (glGetError() != GL_NO_ERROR) { 1685 while ( glGetError() != GL_NO_ERROR ) ; 1686 GLint tw = (2 << (31 - clz(hw_w))); 1687 GLint th = (2 << (31 - clz(hw_h))); 1688 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1689 tw, th, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1690 u = GLfloat(hw_w) / tw; 1691 v = GLfloat(hw_h) / th; 1692 } 1693 glGenFramebuffersOES(1, &name); 1694 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 1695 glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, 1696 GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0); 1697 1698 // redraw the screen entirely... 1699 glClearColor(0,0,0,1); 1700 glClear(GL_COLOR_BUFFER_BIT); 1701 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1702 const size_t count = layers.size(); 1703 for (size_t i=0 ; i<count ; ++i) { 1704 const sp<LayerBase>& layer(layers[i]); 1705 layer->drawForSreenShot(); 1706 } 1707 1708 // back to main framebuffer 1709 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1710 glDisable(GL_SCISSOR_TEST); 1711 glDeleteFramebuffersOES(1, &name); 1712 1713 *textureName = tname; 1714 *uOut = u; 1715 *vOut = v; 1716 return NO_ERROR; 1717} 1718 1719// --------------------------------------------------------------------------- 1720 1721status_t SurfaceFlinger::electronBeamOffAnimationImplLocked() 1722{ 1723 status_t result = PERMISSION_DENIED; 1724 1725 if (!GLExtensions::getInstance().haveFramebufferObject()) 1726 return INVALID_OPERATION; 1727 1728 // get screen geometry 1729 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1730 const uint32_t hw_w = hw.getWidth(); 1731 const uint32_t hw_h = hw.getHeight(); 1732 const Region screenBounds(hw.bounds()); 1733 1734 GLfloat u, v; 1735 GLuint tname; 1736 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1737 if (result != NO_ERROR) { 1738 return result; 1739 } 1740 1741 GLfloat vtx[8]; 1742 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1743 glEnable(GL_TEXTURE_2D); 1744 glBindTexture(GL_TEXTURE_2D, tname); 1745 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1746 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1747 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1748 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1749 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1750 glVertexPointer(2, GL_FLOAT, 0, vtx); 1751 1752 class s_curve_interpolator { 1753 const float nbFrames, s, v; 1754 public: 1755 s_curve_interpolator(int nbFrames, float s) 1756 : nbFrames(1.0f / (nbFrames-1)), s(s), 1757 v(1.0f + expf(-s + 0.5f*s)) { 1758 } 1759 float operator()(int f) { 1760 const float x = f * nbFrames; 1761 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1762 } 1763 }; 1764 1765 class v_stretch { 1766 const GLfloat hw_w, hw_h; 1767 public: 1768 v_stretch(uint32_t hw_w, uint32_t hw_h) 1769 : hw_w(hw_w), hw_h(hw_h) { 1770 } 1771 void operator()(GLfloat* vtx, float v) { 1772 const GLfloat w = hw_w + (hw_w * v); 1773 const GLfloat h = hw_h - (hw_h * v); 1774 const GLfloat x = (hw_w - w) * 0.5f; 1775 const GLfloat y = (hw_h - h) * 0.5f; 1776 vtx[0] = x; vtx[1] = y; 1777 vtx[2] = x; vtx[3] = y + h; 1778 vtx[4] = x + w; vtx[5] = y + h; 1779 vtx[6] = x + w; vtx[7] = y; 1780 } 1781 }; 1782 1783 class h_stretch { 1784 const GLfloat hw_w, hw_h; 1785 public: 1786 h_stretch(uint32_t hw_w, uint32_t hw_h) 1787 : hw_w(hw_w), hw_h(hw_h) { 1788 } 1789 void operator()(GLfloat* vtx, float v) { 1790 const GLfloat w = hw_w - (hw_w * v); 1791 const GLfloat h = 1.0f; 1792 const GLfloat x = (hw_w - w) * 0.5f; 1793 const GLfloat y = (hw_h - h) * 0.5f; 1794 vtx[0] = x; vtx[1] = y; 1795 vtx[2] = x; vtx[3] = y + h; 1796 vtx[4] = x + w; vtx[5] = y + h; 1797 vtx[6] = x + w; vtx[7] = y; 1798 } 1799 }; 1800 1801 // the full animation is 24 frames 1802 const int nbFrames = 12; 1803 s_curve_interpolator itr(nbFrames, 7.5f); 1804 s_curve_interpolator itg(nbFrames, 8.0f); 1805 s_curve_interpolator itb(nbFrames, 8.5f); 1806 1807 v_stretch vverts(hw_w, hw_h); 1808 glEnable(GL_BLEND); 1809 glBlendFunc(GL_ONE, GL_ONE); 1810 for (int i=0 ; i<nbFrames ; i++) { 1811 float x, y, w, h; 1812 const float vr = itr(i); 1813 const float vg = itg(i); 1814 const float vb = itb(i); 1815 1816 // clear screen 1817 glColorMask(1,1,1,1); 1818 glClear(GL_COLOR_BUFFER_BIT); 1819 glEnable(GL_TEXTURE_2D); 1820 1821 // draw the red plane 1822 vverts(vtx, vr); 1823 glColorMask(1,0,0,1); 1824 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1825 1826 // draw the green plane 1827 vverts(vtx, vg); 1828 glColorMask(0,1,0,1); 1829 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1830 1831 // draw the blue plane 1832 vverts(vtx, vb); 1833 glColorMask(0,0,1,1); 1834 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1835 1836 // draw the white highlight (we use the last vertices) 1837 glDisable(GL_TEXTURE_2D); 1838 glColorMask(1,1,1,1); 1839 glColor4f(vg, vg, vg, 1); 1840 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1841 hw.flip(screenBounds); 1842 } 1843 1844 h_stretch hverts(hw_w, hw_h); 1845 glDisable(GL_BLEND); 1846 glDisable(GL_TEXTURE_2D); 1847 glColorMask(1,1,1,1); 1848 for (int i=0 ; i<nbFrames ; i++) { 1849 const float v = itg(i); 1850 hverts(vtx, v); 1851 glClear(GL_COLOR_BUFFER_BIT); 1852 glColor4f(1-v, 1-v, 1-v, 1); 1853 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1854 hw.flip(screenBounds); 1855 } 1856 1857 glColorMask(1,1,1,1); 1858 glEnable(GL_SCISSOR_TEST); 1859 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1860 glDeleteTextures(1, &tname); 1861 return NO_ERROR; 1862} 1863 1864status_t SurfaceFlinger::electronBeamOnAnimationImplLocked() 1865{ 1866 status_t result = PERMISSION_DENIED; 1867 1868 if (!GLExtensions::getInstance().haveFramebufferObject()) 1869 return INVALID_OPERATION; 1870 1871 1872 // get screen geometry 1873 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1874 const uint32_t hw_w = hw.getWidth(); 1875 const uint32_t hw_h = hw.getHeight(); 1876 const Region screenBounds(hw.bounds()); 1877 1878 GLfloat u, v; 1879 GLuint tname; 1880 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1881 if (result != NO_ERROR) { 1882 return result; 1883 } 1884 1885 // back to main framebuffer 1886 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1887 glDisable(GL_SCISSOR_TEST); 1888 1889 GLfloat vtx[8]; 1890 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1891 glEnable(GL_TEXTURE_2D); 1892 glBindTexture(GL_TEXTURE_2D, tname); 1893 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 1894 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1895 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1896 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1897 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1898 glVertexPointer(2, GL_FLOAT, 0, vtx); 1899 1900 class s_curve_interpolator { 1901 const float nbFrames, s, v; 1902 public: 1903 s_curve_interpolator(int nbFrames, float s) 1904 : nbFrames(1.0f / (nbFrames-1)), s(s), 1905 v(1.0f + expf(-s + 0.5f*s)) { 1906 } 1907 float operator()(int f) { 1908 const float x = f * nbFrames; 1909 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1910 } 1911 }; 1912 1913 class v_stretch { 1914 const GLfloat hw_w, hw_h; 1915 public: 1916 v_stretch(uint32_t hw_w, uint32_t hw_h) 1917 : hw_w(hw_w), hw_h(hw_h) { 1918 } 1919 void operator()(GLfloat* vtx, float v) { 1920 const GLfloat w = hw_w + (hw_w * v); 1921 const GLfloat h = hw_h - (hw_h * v); 1922 const GLfloat x = (hw_w - w) * 0.5f; 1923 const GLfloat y = (hw_h - h) * 0.5f; 1924 vtx[0] = x; vtx[1] = y; 1925 vtx[2] = x; vtx[3] = y + h; 1926 vtx[4] = x + w; vtx[5] = y + h; 1927 vtx[6] = x + w; vtx[7] = y; 1928 } 1929 }; 1930 1931 class h_stretch { 1932 const GLfloat hw_w, hw_h; 1933 public: 1934 h_stretch(uint32_t hw_w, uint32_t hw_h) 1935 : hw_w(hw_w), hw_h(hw_h) { 1936 } 1937 void operator()(GLfloat* vtx, float v) { 1938 const GLfloat w = hw_w - (hw_w * v); 1939 const GLfloat h = 1.0f; 1940 const GLfloat x = (hw_w - w) * 0.5f; 1941 const GLfloat y = (hw_h - h) * 0.5f; 1942 vtx[0] = x; vtx[1] = y; 1943 vtx[2] = x; vtx[3] = y + h; 1944 vtx[4] = x + w; vtx[5] = y + h; 1945 vtx[6] = x + w; vtx[7] = y; 1946 } 1947 }; 1948 1949 // the full animation is 12 frames 1950 int nbFrames = 8; 1951 s_curve_interpolator itr(nbFrames, 7.5f); 1952 s_curve_interpolator itg(nbFrames, 8.0f); 1953 s_curve_interpolator itb(nbFrames, 8.5f); 1954 1955 h_stretch hverts(hw_w, hw_h); 1956 glDisable(GL_BLEND); 1957 glDisable(GL_TEXTURE_2D); 1958 glColorMask(1,1,1,1); 1959 for (int i=nbFrames-1 ; i>=0 ; i--) { 1960 const float v = itg(i); 1961 hverts(vtx, v); 1962 glClear(GL_COLOR_BUFFER_BIT); 1963 glColor4f(1-v, 1-v, 1-v, 1); 1964 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1965 hw.flip(screenBounds); 1966 } 1967 1968 nbFrames = 4; 1969 v_stretch vverts(hw_w, hw_h); 1970 glEnable(GL_BLEND); 1971 glBlendFunc(GL_ONE, GL_ONE); 1972 for (int i=nbFrames-1 ; i>=0 ; i--) { 1973 float x, y, w, h; 1974 const float vr = itr(i); 1975 const float vg = itg(i); 1976 const float vb = itb(i); 1977 1978 // clear screen 1979 glColorMask(1,1,1,1); 1980 glClear(GL_COLOR_BUFFER_BIT); 1981 glEnable(GL_TEXTURE_2D); 1982 1983 // draw the red plane 1984 vverts(vtx, vr); 1985 glColorMask(1,0,0,1); 1986 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1987 1988 // draw the green plane 1989 vverts(vtx, vg); 1990 glColorMask(0,1,0,1); 1991 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1992 1993 // draw the blue plane 1994 vverts(vtx, vb); 1995 glColorMask(0,0,1,1); 1996 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1997 1998 hw.flip(screenBounds); 1999 } 2000 2001 glColorMask(1,1,1,1); 2002 glEnable(GL_SCISSOR_TEST); 2003 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 2004 glDeleteTextures(1, &tname); 2005 2006 return NO_ERROR; 2007} 2008 2009// --------------------------------------------------------------------------- 2010 2011status_t SurfaceFlinger::turnElectronBeamOffImplLocked(int32_t mode) 2012{ 2013 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2014 if (!hw.canDraw()) { 2015 // we're already off 2016 return NO_ERROR; 2017 } 2018 if (mode & ISurfaceComposer::eElectronBeamAnimationOff) { 2019 electronBeamOffAnimationImplLocked(); 2020 } 2021 2022 // always clear the whole screen at the end of the animation 2023 glClearColor(0,0,0,1); 2024 glDisable(GL_SCISSOR_TEST); 2025 glClear(GL_COLOR_BUFFER_BIT); 2026 glEnable(GL_SCISSOR_TEST); 2027 hw.flip( Region(hw.bounds()) ); 2028 2029 hw.setCanDraw(false); 2030 return NO_ERROR; 2031} 2032 2033status_t SurfaceFlinger::turnElectronBeamOff(int32_t mode) 2034{ 2035 class MessageTurnElectronBeamOff : public MessageBase { 2036 SurfaceFlinger* flinger; 2037 int32_t mode; 2038 status_t result; 2039 public: 2040 MessageTurnElectronBeamOff(SurfaceFlinger* flinger, int32_t mode) 2041 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2042 } 2043 status_t getResult() const { 2044 return result; 2045 } 2046 virtual bool handler() { 2047 Mutex::Autolock _l(flinger->mStateLock); 2048 result = flinger->turnElectronBeamOffImplLocked(mode); 2049 return true; 2050 } 2051 }; 2052 2053 sp<MessageBase> msg = new MessageTurnElectronBeamOff(this, mode); 2054 status_t res = postMessageSync(msg); 2055 if (res == NO_ERROR) { 2056 res = static_cast<MessageTurnElectronBeamOff*>( msg.get() )->getResult(); 2057 2058 // work-around: when the power-manager calls us we activate the 2059 // animation. eventually, the "on" animation will be called 2060 // by the power-manager itself 2061 mElectronBeamAnimationMode = mode; 2062 } 2063 return res; 2064} 2065 2066// --------------------------------------------------------------------------- 2067 2068status_t SurfaceFlinger::turnElectronBeamOnImplLocked(int32_t mode) 2069{ 2070 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2071 if (hw.canDraw()) { 2072 // we're already on 2073 return NO_ERROR; 2074 } 2075 if (mode & ISurfaceComposer::eElectronBeamAnimationOn) { 2076 electronBeamOnAnimationImplLocked(); 2077 } 2078 hw.setCanDraw(true); 2079 2080 // make sure to redraw the whole screen when the animation is done 2081 mDirtyRegion.set(hw.bounds()); 2082 signalEvent(); 2083 2084 return NO_ERROR; 2085} 2086 2087status_t SurfaceFlinger::turnElectronBeamOn(int32_t mode) 2088{ 2089 class MessageTurnElectronBeamOn : public MessageBase { 2090 SurfaceFlinger* flinger; 2091 int32_t mode; 2092 status_t result; 2093 public: 2094 MessageTurnElectronBeamOn(SurfaceFlinger* flinger, int32_t mode) 2095 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2096 } 2097 status_t getResult() const { 2098 return result; 2099 } 2100 virtual bool handler() { 2101 Mutex::Autolock _l(flinger->mStateLock); 2102 result = flinger->turnElectronBeamOnImplLocked(mode); 2103 return true; 2104 } 2105 }; 2106 2107 postMessageAsync( new MessageTurnElectronBeamOn(this, mode) ); 2108 return NO_ERROR; 2109} 2110 2111// --------------------------------------------------------------------------- 2112 2113status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy, 2114 sp<IMemoryHeap>* heap, 2115 uint32_t* w, uint32_t* h, PixelFormat* f, 2116 uint32_t sw, uint32_t sh) 2117{ 2118 status_t result = PERMISSION_DENIED; 2119 2120 // only one display supported for now 2121 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2122 return BAD_VALUE; 2123 2124 if (!GLExtensions::getInstance().haveFramebufferObject()) 2125 return INVALID_OPERATION; 2126 2127 // get screen geometry 2128 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 2129 const uint32_t hw_w = hw.getWidth(); 2130 const uint32_t hw_h = hw.getHeight(); 2131 2132 if ((sw > hw_w) || (sh > hw_h)) 2133 return BAD_VALUE; 2134 2135 sw = (!sw) ? hw_w : sw; 2136 sh = (!sh) ? hw_h : sh; 2137 const size_t size = sw * sh * 4; 2138 2139 // make sure to clear all GL error flags 2140 while ( glGetError() != GL_NO_ERROR ) ; 2141 2142 // create a FBO 2143 GLuint name, tname; 2144 glGenRenderbuffersOES(1, &tname); 2145 glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname); 2146 glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh); 2147 glGenFramebuffersOES(1, &name); 2148 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 2149 glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, 2150 GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname); 2151 2152 GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES); 2153 if (status == GL_FRAMEBUFFER_COMPLETE_OES) { 2154 2155 // invert everything, b/c glReadPixel() below will invert the FB 2156 glViewport(0, 0, sw, sh); 2157 glMatrixMode(GL_PROJECTION); 2158 glPushMatrix(); 2159 glLoadIdentity(); 2160 glOrthof(0, hw_w, 0, hw_h, 0, 1); 2161 glMatrixMode(GL_MODELVIEW); 2162 2163 // redraw the screen entirely... 2164 glClearColor(0,0,0,1); 2165 glClear(GL_COLOR_BUFFER_BIT); 2166 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 2167 const size_t count = layers.size(); 2168 for (size_t i=0 ; i<count ; ++i) { 2169 const sp<LayerBase>& layer(layers[i]); 2170 layer->drawForSreenShot(); 2171 } 2172 2173 // XXX: this is needed on tegra 2174 glScissor(0, 0, sw, sh); 2175 2176 // check for errors and return screen capture 2177 if (glGetError() != GL_NO_ERROR) { 2178 // error while rendering 2179 result = INVALID_OPERATION; 2180 } else { 2181 // allocate shared memory large enough to hold the 2182 // screen capture 2183 sp<MemoryHeapBase> base( 2184 new MemoryHeapBase(size, 0, "screen-capture") ); 2185 void* const ptr = base->getBase(); 2186 if (ptr) { 2187 // capture the screen with glReadPixels() 2188 glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr); 2189 if (glGetError() == GL_NO_ERROR) { 2190 *heap = base; 2191 *w = sw; 2192 *h = sh; 2193 *f = PIXEL_FORMAT_RGBA_8888; 2194 result = NO_ERROR; 2195 } 2196 } else { 2197 result = NO_MEMORY; 2198 } 2199 } 2200 2201 glEnable(GL_SCISSOR_TEST); 2202 glViewport(0, 0, hw_w, hw_h); 2203 glMatrixMode(GL_PROJECTION); 2204 glPopMatrix(); 2205 glMatrixMode(GL_MODELVIEW); 2206 2207 2208 } else { 2209 result = BAD_VALUE; 2210 } 2211 2212 // release FBO resources 2213 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 2214 glDeleteRenderbuffersOES(1, &tname); 2215 glDeleteFramebuffersOES(1, &name); 2216 return result; 2217} 2218 2219 2220status_t SurfaceFlinger::captureScreen(DisplayID dpy, 2221 sp<IMemoryHeap>* heap, 2222 uint32_t* width, uint32_t* height, PixelFormat* format, 2223 uint32_t sw, uint32_t sh) 2224{ 2225 // only one display supported for now 2226 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2227 return BAD_VALUE; 2228 2229 if (!GLExtensions::getInstance().haveFramebufferObject()) 2230 return INVALID_OPERATION; 2231 2232 class MessageCaptureScreen : public MessageBase { 2233 SurfaceFlinger* flinger; 2234 DisplayID dpy; 2235 sp<IMemoryHeap>* heap; 2236 uint32_t* w; 2237 uint32_t* h; 2238 PixelFormat* f; 2239 uint32_t sw; 2240 uint32_t sh; 2241 status_t result; 2242 public: 2243 MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy, 2244 sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f, 2245 uint32_t sw, uint32_t sh) 2246 : flinger(flinger), dpy(dpy), 2247 heap(heap), w(w), h(h), f(f), sw(sw), sh(sh), result(PERMISSION_DENIED) 2248 { 2249 } 2250 status_t getResult() const { 2251 return result; 2252 } 2253 virtual bool handler() { 2254 Mutex::Autolock _l(flinger->mStateLock); 2255 2256 // if we have secure windows, never allow the screen capture 2257 if (flinger->mSecureFrameBuffer) 2258 return true; 2259 2260 result = flinger->captureScreenImplLocked(dpy, 2261 heap, w, h, f, sw, sh); 2262 2263 return true; 2264 } 2265 }; 2266 2267 sp<MessageBase> msg = new MessageCaptureScreen(this, 2268 dpy, heap, width, height, format, sw, sh); 2269 status_t res = postMessageSync(msg); 2270 if (res == NO_ERROR) { 2271 res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult(); 2272 } 2273 return res; 2274} 2275 2276// --------------------------------------------------------------------------- 2277 2278sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const 2279{ 2280 sp<Layer> result; 2281 Mutex::Autolock _l(mStateLock); 2282 result = mLayerMap.valueFor( sur->asBinder() ).promote(); 2283 return result; 2284} 2285 2286// --------------------------------------------------------------------------- 2287 2288Client::Client(const sp<SurfaceFlinger>& flinger) 2289 : mFlinger(flinger), mNameGenerator(1) 2290{ 2291} 2292 2293Client::~Client() 2294{ 2295 const size_t count = mLayers.size(); 2296 for (size_t i=0 ; i<count ; i++) { 2297 sp<LayerBaseClient> layer(mLayers.valueAt(i).promote()); 2298 if (layer != 0) { 2299 mFlinger->removeLayer(layer); 2300 } 2301 } 2302} 2303 2304status_t Client::initCheck() const { 2305 return NO_ERROR; 2306} 2307 2308ssize_t Client::attachLayer(const sp<LayerBaseClient>& layer) 2309{ 2310 int32_t name = android_atomic_inc(&mNameGenerator); 2311 mLayers.add(name, layer); 2312 return name; 2313} 2314 2315void Client::detachLayer(const LayerBaseClient* layer) 2316{ 2317 // we do a linear search here, because this doesn't happen often 2318 const size_t count = mLayers.size(); 2319 for (size_t i=0 ; i<count ; i++) { 2320 if (mLayers.valueAt(i) == layer) { 2321 mLayers.removeItemsAt(i, 1); 2322 break; 2323 } 2324 } 2325} 2326sp<LayerBaseClient> Client::getLayerUser(int32_t i) const { 2327 sp<LayerBaseClient> lbc; 2328 const wp<LayerBaseClient>& layer(mLayers.valueFor(i)); 2329 if (layer != 0) { 2330 lbc = layer.promote(); 2331 LOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i)); 2332 } 2333 return lbc; 2334} 2335 2336sp<IMemoryHeap> Client::getControlBlock() const { 2337 return 0; 2338} 2339ssize_t Client::getTokenForSurface(const sp<ISurface>& sur) const { 2340 return -1; 2341} 2342sp<ISurface> Client::createSurface( 2343 ISurfaceComposerClient::surface_data_t* params, int pid, 2344 const String8& name, 2345 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2346 uint32_t flags) 2347{ 2348 return mFlinger->createSurface(this, pid, name, params, 2349 display, w, h, format, flags); 2350} 2351status_t Client::destroySurface(SurfaceID sid) { 2352 return mFlinger->removeSurface(this, sid); 2353} 2354status_t Client::setState(int32_t count, const layer_state_t* states) { 2355 return mFlinger->setClientState(this, count, states); 2356} 2357 2358// --------------------------------------------------------------------------- 2359 2360UserClient::UserClient(const sp<SurfaceFlinger>& flinger) 2361 : ctrlblk(0), mBitmap(0), mFlinger(flinger) 2362{ 2363 const int pgsize = getpagesize(); 2364 const int cblksize = ((sizeof(SharedClient)+(pgsize-1))&~(pgsize-1)); 2365 2366 mCblkHeap = new MemoryHeapBase(cblksize, 0, 2367 "SurfaceFlinger Client control-block"); 2368 2369 ctrlblk = static_cast<SharedClient *>(mCblkHeap->getBase()); 2370 if (ctrlblk) { // construct the shared structure in-place. 2371 new(ctrlblk) SharedClient; 2372 } 2373} 2374 2375UserClient::~UserClient() 2376{ 2377 if (ctrlblk) { 2378 ctrlblk->~SharedClient(); // destroy our shared-structure. 2379 } 2380 2381 /* 2382 * When a UserClient dies, it's unclear what to do exactly. 2383 * We could go ahead and destroy all surfaces linked to that client 2384 * however, it wouldn't be fair to the main Client 2385 * (usually the the window-manager), which might want to re-target 2386 * the layer to another UserClient. 2387 * I think the best is to do nothing, or not much; in most cases the 2388 * WM itself will go ahead and clean things up when it detects a client of 2389 * his has died. 2390 * The remaining question is what to display? currently we keep 2391 * just keep the current buffer. 2392 */ 2393} 2394 2395status_t UserClient::initCheck() const { 2396 return ctrlblk == 0 ? NO_INIT : NO_ERROR; 2397} 2398 2399void UserClient::detachLayer(const Layer* layer) 2400{ 2401 int32_t name = layer->getToken(); 2402 if (name >= 0) { 2403 int32_t mask = 1LU<<name; 2404 if ((android_atomic_and(~mask, &mBitmap) & mask) == 0) { 2405 LOGW("token %d wasn't marked as used %08x", name, int(mBitmap)); 2406 } 2407 } 2408} 2409 2410sp<IMemoryHeap> UserClient::getControlBlock() const { 2411 return mCblkHeap; 2412} 2413 2414ssize_t UserClient::getTokenForSurface(const sp<ISurface>& sur) const 2415{ 2416 int32_t name = NAME_NOT_FOUND; 2417 sp<Layer> layer(mFlinger->getLayer(sur)); 2418 if (layer == 0) { 2419 return name; 2420 } 2421 2422 // if this layer already has a token, just return it 2423 name = layer->getToken(); 2424 if ((name >= 0) && (layer->getClient() == this)) { 2425 return name; 2426 } 2427 2428 name = 0; 2429 do { 2430 int32_t mask = 1LU<<name; 2431 if ((android_atomic_or(mask, &mBitmap) & mask) == 0) { 2432 // we found and locked that name 2433 status_t err = layer->setToken( 2434 const_cast<UserClient*>(this), ctrlblk, name); 2435 if (err != NO_ERROR) { 2436 // free the name 2437 android_atomic_and(~mask, &mBitmap); 2438 name = err; 2439 } 2440 break; 2441 } 2442 if (++name > 31) 2443 name = NO_MEMORY; 2444 } while(name >= 0); 2445 2446 //LOGD("getTokenForSurface(%p) => %d (client=%p, bitmap=%08lx)", 2447 // sur->asBinder().get(), name, this, mBitmap); 2448 return name; 2449} 2450 2451sp<ISurface> UserClient::createSurface( 2452 ISurfaceComposerClient::surface_data_t* params, int pid, 2453 const String8& name, 2454 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2455 uint32_t flags) { 2456 return 0; 2457} 2458status_t UserClient::destroySurface(SurfaceID sid) { 2459 return INVALID_OPERATION; 2460} 2461status_t UserClient::setState(int32_t count, const layer_state_t* states) { 2462 return INVALID_OPERATION; 2463} 2464 2465// --------------------------------------------------------------------------- 2466 2467GraphicPlane::GraphicPlane() 2468 : mHw(0) 2469{ 2470} 2471 2472GraphicPlane::~GraphicPlane() { 2473 delete mHw; 2474} 2475 2476bool GraphicPlane::initialized() const { 2477 return mHw ? true : false; 2478} 2479 2480int GraphicPlane::getWidth() const { 2481 return mWidth; 2482} 2483 2484int GraphicPlane::getHeight() const { 2485 return mHeight; 2486} 2487 2488void GraphicPlane::setDisplayHardware(DisplayHardware *hw) 2489{ 2490 mHw = hw; 2491 2492 // initialize the display orientation transform. 2493 // it's a constant that should come from the display driver. 2494 int displayOrientation = ISurfaceComposer::eOrientationDefault; 2495 char property[PROPERTY_VALUE_MAX]; 2496 if (property_get("ro.sf.hwrotation", property, NULL) > 0) { 2497 //displayOrientation 2498 switch (atoi(property)) { 2499 case 90: 2500 displayOrientation = ISurfaceComposer::eOrientation90; 2501 break; 2502 case 270: 2503 displayOrientation = ISurfaceComposer::eOrientation270; 2504 break; 2505 } 2506 } 2507 2508 const float w = hw->getWidth(); 2509 const float h = hw->getHeight(); 2510 GraphicPlane::orientationToTransfrom(displayOrientation, w, h, 2511 &mDisplayTransform); 2512 if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) { 2513 mDisplayWidth = h; 2514 mDisplayHeight = w; 2515 } else { 2516 mDisplayWidth = w; 2517 mDisplayHeight = h; 2518 } 2519 2520 setOrientation(ISurfaceComposer::eOrientationDefault); 2521} 2522 2523status_t GraphicPlane::orientationToTransfrom( 2524 int orientation, int w, int h, Transform* tr) 2525{ 2526 uint32_t flags = 0; 2527 switch (orientation) { 2528 case ISurfaceComposer::eOrientationDefault: 2529 flags = Transform::ROT_0; 2530 break; 2531 case ISurfaceComposer::eOrientation90: 2532 flags = Transform::ROT_90; 2533 break; 2534 case ISurfaceComposer::eOrientation180: 2535 flags = Transform::ROT_180; 2536 break; 2537 case ISurfaceComposer::eOrientation270: 2538 flags = Transform::ROT_270; 2539 break; 2540 default: 2541 return BAD_VALUE; 2542 } 2543 tr->set(flags, w, h); 2544 return NO_ERROR; 2545} 2546 2547status_t GraphicPlane::setOrientation(int orientation) 2548{ 2549 // If the rotation can be handled in hardware, this is where 2550 // the magic should happen. 2551 2552 const DisplayHardware& hw(displayHardware()); 2553 const float w = mDisplayWidth; 2554 const float h = mDisplayHeight; 2555 mWidth = int(w); 2556 mHeight = int(h); 2557 2558 Transform orientationTransform; 2559 GraphicPlane::orientationToTransfrom(orientation, w, h, 2560 &orientationTransform); 2561 if (orientation & ISurfaceComposer::eOrientationSwapMask) { 2562 mWidth = int(h); 2563 mHeight = int(w); 2564 } 2565 2566 mOrientation = orientation; 2567 mGlobalTransform = mDisplayTransform * orientationTransform; 2568 return NO_ERROR; 2569} 2570 2571const DisplayHardware& GraphicPlane::displayHardware() const { 2572 return *mHw; 2573} 2574 2575DisplayHardware& GraphicPlane::editDisplayHardware() { 2576 return *mHw; 2577} 2578 2579const Transform& GraphicPlane::transform() const { 2580 return mGlobalTransform; 2581} 2582 2583EGLDisplay GraphicPlane::getEGLDisplay() const { 2584 return mHw->getEGLDisplay(); 2585} 2586 2587// --------------------------------------------------------------------------- 2588 2589}; // namespace android 2590