SurfaceFlinger.cpp revision bf2c6a6c8f1df40ac94e28b948754bb9739daaca
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 } 1027} 1028 1029void SurfaceFlinger::debugShowFPS() const 1030{ 1031 static int mFrameCount; 1032 static int mLastFrameCount = 0; 1033 static nsecs_t mLastFpsTime = 0; 1034 static float mFps = 0; 1035 mFrameCount++; 1036 nsecs_t now = systemTime(); 1037 nsecs_t diff = now - mLastFpsTime; 1038 if (diff > ms2ns(250)) { 1039 mFps = ((mFrameCount - mLastFrameCount) * float(s2ns(1))) / diff; 1040 mLastFpsTime = now; 1041 mLastFrameCount = mFrameCount; 1042 } 1043 // XXX: mFPS has the value we want 1044 } 1045 1046status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer) 1047{ 1048 Mutex::Autolock _l(mStateLock); 1049 addLayer_l(layer); 1050 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1051 return NO_ERROR; 1052} 1053 1054status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer) 1055{ 1056 ssize_t i = mCurrentState.layersSortedByZ.add(layer); 1057 return (i < 0) ? status_t(i) : status_t(NO_ERROR); 1058} 1059 1060ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client, 1061 const sp<LayerBaseClient>& lbc) 1062{ 1063 Mutex::Autolock _l(mStateLock); 1064 1065 // attach this layer to the client 1066 ssize_t name = client->attachLayer(lbc); 1067 1068 // add this layer to the current state list 1069 addLayer_l(lbc); 1070 1071 return name; 1072} 1073 1074status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer) 1075{ 1076 Mutex::Autolock _l(mStateLock); 1077 status_t err = purgatorizeLayer_l(layer); 1078 if (err == NO_ERROR) 1079 setTransactionFlags(eTransactionNeeded); 1080 return err; 1081} 1082 1083status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase) 1084{ 1085 sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient()); 1086 if (lbc != 0) { 1087 mLayerMap.removeItem( lbc->getSurface()->asBinder() ); 1088 } 1089 ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase); 1090 if (index >= 0) { 1091 mLayersRemoved = true; 1092 return NO_ERROR; 1093 } 1094 return status_t(index); 1095} 1096 1097status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase) 1098{ 1099 // remove the layer from the main list (through a transaction). 1100 ssize_t err = removeLayer_l(layerBase); 1101 1102 layerBase->onRemoved(); 1103 1104 // it's possible that we don't find a layer, because it might 1105 // have been destroyed already -- this is not technically an error 1106 // from the user because there is a race between Client::destroySurface(), 1107 // ~Client() and ~ISurface(). 1108 return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err; 1109} 1110 1111status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer) 1112{ 1113 layer->forceVisibilityTransaction(); 1114 setTransactionFlags(eTraversalNeeded); 1115 return NO_ERROR; 1116} 1117 1118uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags) 1119{ 1120 return android_atomic_and(~flags, &mTransactionFlags) & flags; 1121} 1122 1123uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags) 1124{ 1125 uint32_t old = android_atomic_or(flags, &mTransactionFlags); 1126 if ((old & flags)==0) { // wake the server up 1127 signalEvent(); 1128 } 1129 return old; 1130} 1131 1132void SurfaceFlinger::openGlobalTransaction() 1133{ 1134 android_atomic_inc(&mTransactionCount); 1135} 1136 1137void SurfaceFlinger::closeGlobalTransaction() 1138{ 1139 if (android_atomic_dec(&mTransactionCount) == 1) { 1140 signalEvent(); 1141 1142 // if there is a transaction with a resize, wait for it to 1143 // take effect before returning. 1144 Mutex::Autolock _l(mStateLock); 1145 while (mResizeTransationPending) { 1146 status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5)); 1147 if (CC_UNLIKELY(err != NO_ERROR)) { 1148 // just in case something goes wrong in SF, return to the 1149 // called after a few seconds. 1150 LOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!"); 1151 mResizeTransationPending = false; 1152 break; 1153 } 1154 } 1155 } 1156} 1157 1158status_t SurfaceFlinger::freezeDisplay(DisplayID dpy, uint32_t flags) 1159{ 1160 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1161 return BAD_VALUE; 1162 1163 Mutex::Autolock _l(mStateLock); 1164 mCurrentState.freezeDisplay = 1; 1165 setTransactionFlags(eTransactionNeeded); 1166 1167 // flags is intended to communicate some sort of animation behavior 1168 // (for instance fading) 1169 return NO_ERROR; 1170} 1171 1172status_t SurfaceFlinger::unfreezeDisplay(DisplayID dpy, uint32_t flags) 1173{ 1174 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1175 return BAD_VALUE; 1176 1177 Mutex::Autolock _l(mStateLock); 1178 mCurrentState.freezeDisplay = 0; 1179 setTransactionFlags(eTransactionNeeded); 1180 1181 // flags is intended to communicate some sort of animation behavior 1182 // (for instance fading) 1183 return NO_ERROR; 1184} 1185 1186int SurfaceFlinger::setOrientation(DisplayID dpy, 1187 int orientation, uint32_t flags) 1188{ 1189 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1190 return BAD_VALUE; 1191 1192 Mutex::Autolock _l(mStateLock); 1193 if (mCurrentState.orientation != orientation) { 1194 if (uint32_t(orientation)<=eOrientation270 || orientation==42) { 1195 mCurrentState.orientationType = flags; 1196 mCurrentState.orientation = orientation; 1197 setTransactionFlags(eTransactionNeeded); 1198 mTransactionCV.wait(mStateLock); 1199 } else { 1200 orientation = BAD_VALUE; 1201 } 1202 } 1203 return orientation; 1204} 1205 1206sp<ISurface> SurfaceFlinger::createSurface(const sp<Client>& client, int pid, 1207 const String8& name, ISurfaceComposerClient::surface_data_t* params, 1208 DisplayID d, uint32_t w, uint32_t h, PixelFormat format, 1209 uint32_t flags) 1210{ 1211 sp<LayerBaseClient> layer; 1212 sp<LayerBaseClient::Surface> surfaceHandle; 1213 1214 if (int32_t(w|h) < 0) { 1215 LOGE("createSurface() failed, w or h is negative (w=%d, h=%d)", 1216 int(w), int(h)); 1217 return surfaceHandle; 1218 } 1219 1220 //LOGD("createSurface for pid %d (%d x %d)", pid, w, h); 1221 sp<Layer> normalLayer; 1222 switch (flags & eFXSurfaceMask) { 1223 case eFXSurfaceNormal: 1224 normalLayer = createNormalSurface(client, d, w, h, flags, format); 1225 layer = normalLayer; 1226 break; 1227 case eFXSurfaceBlur: 1228 // for now we treat Blur as Dim, until we can implement it 1229 // efficiently. 1230 case eFXSurfaceDim: 1231 layer = createDimSurface(client, d, w, h, flags); 1232 break; 1233 } 1234 1235 if (layer != 0) { 1236 layer->initStates(w, h, flags); 1237 layer->setName(name); 1238 ssize_t token = addClientLayer(client, layer); 1239 1240 surfaceHandle = layer->getSurface(); 1241 if (surfaceHandle != 0) { 1242 params->token = token; 1243 params->identity = surfaceHandle->getIdentity(); 1244 params->width = w; 1245 params->height = h; 1246 params->format = format; 1247 if (normalLayer != 0) { 1248 Mutex::Autolock _l(mStateLock); 1249 mLayerMap.add(surfaceHandle->asBinder(), normalLayer); 1250 } 1251 } 1252 1253 setTransactionFlags(eTransactionNeeded); 1254 } 1255 1256 return surfaceHandle; 1257} 1258 1259sp<Layer> SurfaceFlinger::createNormalSurface( 1260 const sp<Client>& client, DisplayID display, 1261 uint32_t w, uint32_t h, uint32_t flags, 1262 PixelFormat& format) 1263{ 1264 // initialize the surfaces 1265 switch (format) { // TODO: take h/w into account 1266 case PIXEL_FORMAT_TRANSPARENT: 1267 case PIXEL_FORMAT_TRANSLUCENT: 1268 format = PIXEL_FORMAT_RGBA_8888; 1269 break; 1270 case PIXEL_FORMAT_OPAQUE: 1271#ifdef NO_RGBX_8888 1272 format = PIXEL_FORMAT_RGB_565; 1273#else 1274 format = PIXEL_FORMAT_RGBX_8888; 1275#endif 1276 break; 1277 } 1278 1279#ifdef NO_RGBX_8888 1280 if (format == PIXEL_FORMAT_RGBX_8888) 1281 format = PIXEL_FORMAT_RGBA_8888; 1282#endif 1283 1284 sp<Layer> layer = new Layer(this, display, client); 1285 status_t err = layer->setBuffers(w, h, format, flags); 1286 if (LIKELY(err != NO_ERROR)) { 1287 LOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err)); 1288 layer.clear(); 1289 } 1290 return layer; 1291} 1292 1293sp<LayerDim> SurfaceFlinger::createDimSurface( 1294 const sp<Client>& client, DisplayID display, 1295 uint32_t w, uint32_t h, uint32_t flags) 1296{ 1297 sp<LayerDim> layer = new LayerDim(this, display, client); 1298 layer->initStates(w, h, flags); 1299 return layer; 1300} 1301 1302status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid) 1303{ 1304 /* 1305 * called by the window manager, when a surface should be marked for 1306 * destruction. 1307 * 1308 * The surface is removed from the current and drawing lists, but placed 1309 * in the purgatory queue, so it's not destroyed right-away (we need 1310 * to wait for all client's references to go away first). 1311 */ 1312 1313 status_t err = NAME_NOT_FOUND; 1314 Mutex::Autolock _l(mStateLock); 1315 sp<LayerBaseClient> layer = client->getLayerUser(sid); 1316 if (layer != 0) { 1317 err = purgatorizeLayer_l(layer); 1318 if (err == NO_ERROR) { 1319 setTransactionFlags(eTransactionNeeded); 1320 } 1321 } 1322 return err; 1323} 1324 1325status_t SurfaceFlinger::destroySurface(const sp<LayerBaseClient>& layer) 1326{ 1327 // called by ~ISurface() when all references are gone 1328 1329 class MessageDestroySurface : public MessageBase { 1330 SurfaceFlinger* flinger; 1331 sp<LayerBaseClient> layer; 1332 public: 1333 MessageDestroySurface( 1334 SurfaceFlinger* flinger, const sp<LayerBaseClient>& layer) 1335 : flinger(flinger), layer(layer) { } 1336 virtual bool handler() { 1337 sp<LayerBaseClient> l(layer); 1338 layer.clear(); // clear it outside of the lock; 1339 Mutex::Autolock _l(flinger->mStateLock); 1340 /* 1341 * remove the layer from the current list -- chances are that it's 1342 * not in the list anyway, because it should have been removed 1343 * already upon request of the client (eg: window manager). 1344 * However, a buggy client could have not done that. 1345 * Since we know we don't have any more clients, we don't need 1346 * to use the purgatory. 1347 */ 1348 status_t err = flinger->removeLayer_l(l); 1349 LOGE_IF(err<0 && err != NAME_NOT_FOUND, 1350 "error removing layer=%p (%s)", l.get(), strerror(-err)); 1351 return true; 1352 } 1353 }; 1354 1355 postMessageAsync( new MessageDestroySurface(this, layer) ); 1356 return NO_ERROR; 1357} 1358 1359status_t SurfaceFlinger::setClientState( 1360 const sp<Client>& client, 1361 int32_t count, 1362 const layer_state_t* states) 1363{ 1364 Mutex::Autolock _l(mStateLock); 1365 uint32_t flags = 0; 1366 for (int i=0 ; i<count ; i++) { 1367 const layer_state_t& s(states[i]); 1368 sp<LayerBaseClient> layer(client->getLayerUser(s.surface)); 1369 if (layer != 0) { 1370 const uint32_t what = s.what; 1371 if (what & ePositionChanged) { 1372 if (layer->setPosition(s.x, s.y)) 1373 flags |= eTraversalNeeded; 1374 } 1375 if (what & eLayerChanged) { 1376 ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer); 1377 if (layer->setLayer(s.z)) { 1378 mCurrentState.layersSortedByZ.removeAt(idx); 1379 mCurrentState.layersSortedByZ.add(layer); 1380 // we need traversal (state changed) 1381 // AND transaction (list changed) 1382 flags |= eTransactionNeeded|eTraversalNeeded; 1383 } 1384 } 1385 if (what & eSizeChanged) { 1386 if (layer->setSize(s.w, s.h)) { 1387 flags |= eTraversalNeeded; 1388 mResizeTransationPending = true; 1389 } 1390 } 1391 if (what & eAlphaChanged) { 1392 if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f))) 1393 flags |= eTraversalNeeded; 1394 } 1395 if (what & eMatrixChanged) { 1396 if (layer->setMatrix(s.matrix)) 1397 flags |= eTraversalNeeded; 1398 } 1399 if (what & eTransparentRegionChanged) { 1400 if (layer->setTransparentRegionHint(s.transparentRegion)) 1401 flags |= eTraversalNeeded; 1402 } 1403 if (what & eVisibilityChanged) { 1404 if (layer->setFlags(s.flags, s.mask)) 1405 flags |= eTraversalNeeded; 1406 } 1407 } 1408 } 1409 if (flags) { 1410 setTransactionFlags(flags); 1411 } 1412 return NO_ERROR; 1413} 1414 1415void SurfaceFlinger::screenReleased(int dpy) 1416{ 1417 // this may be called by a signal handler, we can't do too much in here 1418 android_atomic_or(eConsoleReleased, &mConsoleSignals); 1419 signalEvent(); 1420} 1421 1422void SurfaceFlinger::screenAcquired(int dpy) 1423{ 1424 // this may be called by a signal handler, we can't do too much in here 1425 android_atomic_or(eConsoleAcquired, &mConsoleSignals); 1426 signalEvent(); 1427} 1428 1429status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args) 1430{ 1431 const size_t SIZE = 4096; 1432 char buffer[SIZE]; 1433 String8 result; 1434 if (!mDump.checkCalling()) { 1435 snprintf(buffer, SIZE, "Permission Denial: " 1436 "can't dump SurfaceFlinger from pid=%d, uid=%d\n", 1437 IPCThreadState::self()->getCallingPid(), 1438 IPCThreadState::self()->getCallingUid()); 1439 result.append(buffer); 1440 } else { 1441 1442 // figure out if we're stuck somewhere 1443 const nsecs_t now = systemTime(); 1444 const nsecs_t inSwapBuffers(mDebugInSwapBuffers); 1445 const nsecs_t inTransaction(mDebugInTransaction); 1446 nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0; 1447 nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0; 1448 1449 // Try to get the main lock, but don't insist if we can't 1450 // (this would indicate SF is stuck, but we want to be able to 1451 // print something in dumpsys). 1452 int retry = 3; 1453 while (mStateLock.tryLock()<0 && --retry>=0) { 1454 usleep(1000000); 1455 } 1456 const bool locked(retry >= 0); 1457 if (!locked) { 1458 snprintf(buffer, SIZE, 1459 "SurfaceFlinger appears to be unresponsive, " 1460 "dumping anyways (no locks held)\n"); 1461 result.append(buffer); 1462 } 1463 1464 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1465 const size_t count = currentLayers.size(); 1466 for (size_t i=0 ; i<count ; i++) { 1467 const sp<LayerBase>& layer(currentLayers[i]); 1468 layer->dump(result, buffer, SIZE); 1469 const Layer::State& s(layer->drawingState()); 1470 s.transparentRegion.dump(result, "transparentRegion"); 1471 layer->transparentRegionScreen.dump(result, "transparentRegionScreen"); 1472 layer->visibleRegionScreen.dump(result, "visibleRegionScreen"); 1473 } 1474 1475 mWormholeRegion.dump(result, "WormholeRegion"); 1476 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1477 snprintf(buffer, SIZE, 1478 " display frozen: %s, freezeCount=%d, orientation=%d, canDraw=%d\n", 1479 mFreezeDisplay?"yes":"no", mFreezeCount, 1480 mCurrentState.orientation, hw.canDraw()); 1481 result.append(buffer); 1482 snprintf(buffer, SIZE, 1483 " last eglSwapBuffers() time: %f us\n" 1484 " last transaction time : %f us\n", 1485 mLastSwapBufferTime/1000.0, mLastTransactionTime/1000.0); 1486 result.append(buffer); 1487 1488 if (inSwapBuffersDuration || !locked) { 1489 snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n", 1490 inSwapBuffersDuration/1000.0); 1491 result.append(buffer); 1492 } 1493 1494 if (inTransactionDuration || !locked) { 1495 snprintf(buffer, SIZE, " transaction time: %f us\n", 1496 inTransactionDuration/1000.0); 1497 result.append(buffer); 1498 } 1499 1500 HWComposer& hwc(hw.getHwComposer()); 1501 snprintf(buffer, SIZE, " h/w composer %s and %s\n", 1502 hwc.initCheck()==NO_ERROR ? "present" : "not present", 1503 mDebugDisableHWC ? "disabled" : "enabled"); 1504 result.append(buffer); 1505 hwc.dump(result, buffer, SIZE); 1506 1507 const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get()); 1508 alloc.dump(result); 1509 hw.dump(result); 1510 1511 if (locked) { 1512 mStateLock.unlock(); 1513 } 1514 } 1515 write(fd, result.string(), result.size()); 1516 return NO_ERROR; 1517} 1518 1519status_t SurfaceFlinger::onTransact( 1520 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1521{ 1522 switch (code) { 1523 case CREATE_CONNECTION: 1524 case OPEN_GLOBAL_TRANSACTION: 1525 case CLOSE_GLOBAL_TRANSACTION: 1526 case SET_ORIENTATION: 1527 case FREEZE_DISPLAY: 1528 case UNFREEZE_DISPLAY: 1529 case BOOT_FINISHED: 1530 case TURN_ELECTRON_BEAM_OFF: 1531 case TURN_ELECTRON_BEAM_ON: 1532 { 1533 // codes that require permission check 1534 IPCThreadState* ipc = IPCThreadState::self(); 1535 const int pid = ipc->getCallingPid(); 1536 const int uid = ipc->getCallingUid(); 1537 if ((uid != AID_GRAPHICS) && !mAccessSurfaceFlinger.check(pid, uid)) { 1538 LOGE("Permission Denial: " 1539 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1540 return PERMISSION_DENIED; 1541 } 1542 break; 1543 } 1544 case CAPTURE_SCREEN: 1545 { 1546 // codes that require permission check 1547 IPCThreadState* ipc = IPCThreadState::self(); 1548 const int pid = ipc->getCallingPid(); 1549 const int uid = ipc->getCallingUid(); 1550 if ((uid != AID_GRAPHICS) && !mReadFramebuffer.check(pid, uid)) { 1551 LOGE("Permission Denial: " 1552 "can't read framebuffer pid=%d, uid=%d", pid, uid); 1553 return PERMISSION_DENIED; 1554 } 1555 break; 1556 } 1557 } 1558 1559 status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags); 1560 if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) { 1561 CHECK_INTERFACE(ISurfaceComposer, data, reply); 1562 if (UNLIKELY(!mHardwareTest.checkCalling())) { 1563 IPCThreadState* ipc = IPCThreadState::self(); 1564 const int pid = ipc->getCallingPid(); 1565 const int uid = ipc->getCallingUid(); 1566 LOGE("Permission Denial: " 1567 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1568 return PERMISSION_DENIED; 1569 } 1570 int n; 1571 switch (code) { 1572 case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE 1573 case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE 1574 return NO_ERROR; 1575 case 1002: // SHOW_UPDATES 1576 n = data.readInt32(); 1577 mDebugRegion = n ? n : (mDebugRegion ? 0 : 1); 1578 return NO_ERROR; 1579 case 1003: // SHOW_BACKGROUND 1580 n = data.readInt32(); 1581 mDebugBackground = n ? 1 : 0; 1582 return NO_ERROR; 1583 case 1008: // toggle use of hw composer 1584 n = data.readInt32(); 1585 mDebugDisableHWC = n ? 1 : 0; 1586 mHwWorkListDirty = true; 1587 // fall-through... 1588 case 1004:{ // repaint everything 1589 Mutex::Autolock _l(mStateLock); 1590 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1591 mDirtyRegion.set(hw.bounds()); // careful that's not thread-safe 1592 signalEvent(); 1593 return NO_ERROR; 1594 } 1595 case 1005:{ // force transaction 1596 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1597 return NO_ERROR; 1598 } 1599 case 1006:{ // enable/disable GraphicLog 1600 int enabled = data.readInt32(); 1601 GraphicLog::getInstance().setEnabled(enabled); 1602 return NO_ERROR; 1603 } 1604 case 1007: // set mFreezeCount 1605 mFreezeCount = data.readInt32(); 1606 mFreezeDisplayTime = 0; 1607 return NO_ERROR; 1608 case 1010: // interrogate. 1609 reply->writeInt32(0); 1610 reply->writeInt32(0); 1611 reply->writeInt32(mDebugRegion); 1612 reply->writeInt32(mDebugBackground); 1613 return NO_ERROR; 1614 case 1013: { 1615 Mutex::Autolock _l(mStateLock); 1616 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1617 reply->writeInt32(hw.getPageFlipCount()); 1618 } 1619 return NO_ERROR; 1620 } 1621 } 1622 return err; 1623} 1624 1625// --------------------------------------------------------------------------- 1626 1627status_t SurfaceFlinger::renderScreenToTextureLocked(DisplayID dpy, 1628 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1629{ 1630 if (!GLExtensions::getInstance().haveFramebufferObject()) 1631 return INVALID_OPERATION; 1632 1633 // get screen geometry 1634 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 1635 const uint32_t hw_w = hw.getWidth(); 1636 const uint32_t hw_h = hw.getHeight(); 1637 GLfloat u = 1; 1638 GLfloat v = 1; 1639 1640 // make sure to clear all GL error flags 1641 while ( glGetError() != GL_NO_ERROR ) ; 1642 1643 // create a FBO 1644 GLuint name, tname; 1645 glGenTextures(1, &tname); 1646 glBindTexture(GL_TEXTURE_2D, tname); 1647 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1648 hw_w, hw_h, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1649 if (glGetError() != GL_NO_ERROR) { 1650 while ( glGetError() != GL_NO_ERROR ) ; 1651 GLint tw = (2 << (31 - clz(hw_w))); 1652 GLint th = (2 << (31 - clz(hw_h))); 1653 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1654 tw, th, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1655 u = GLfloat(hw_w) / tw; 1656 v = GLfloat(hw_h) / th; 1657 } 1658 glGenFramebuffersOES(1, &name); 1659 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 1660 glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, 1661 GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0); 1662 1663 // redraw the screen entirely... 1664 glClearColor(0,0,0,1); 1665 glClear(GL_COLOR_BUFFER_BIT); 1666 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1667 const size_t count = layers.size(); 1668 for (size_t i=0 ; i<count ; ++i) { 1669 const sp<LayerBase>& layer(layers[i]); 1670 layer->drawForSreenShot(); 1671 } 1672 1673 // back to main framebuffer 1674 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1675 glDisable(GL_SCISSOR_TEST); 1676 glDeleteFramebuffersOES(1, &name); 1677 1678 *textureName = tname; 1679 *uOut = u; 1680 *vOut = v; 1681 return NO_ERROR; 1682} 1683 1684// --------------------------------------------------------------------------- 1685 1686status_t SurfaceFlinger::electronBeamOffAnimationImplLocked() 1687{ 1688 status_t result = PERMISSION_DENIED; 1689 1690 if (!GLExtensions::getInstance().haveFramebufferObject()) 1691 return INVALID_OPERATION; 1692 1693 // get screen geometry 1694 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1695 const uint32_t hw_w = hw.getWidth(); 1696 const uint32_t hw_h = hw.getHeight(); 1697 const Region screenBounds(hw.bounds()); 1698 1699 GLfloat u, v; 1700 GLuint tname; 1701 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1702 if (result != NO_ERROR) { 1703 return result; 1704 } 1705 1706 GLfloat vtx[8]; 1707 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1708 glEnable(GL_TEXTURE_2D); 1709 glBindTexture(GL_TEXTURE_2D, tname); 1710 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1711 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1712 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1713 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1714 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1715 glVertexPointer(2, GL_FLOAT, 0, vtx); 1716 1717 class s_curve_interpolator { 1718 const float nbFrames, s, v; 1719 public: 1720 s_curve_interpolator(int nbFrames, float s) 1721 : nbFrames(1.0f / (nbFrames-1)), s(s), 1722 v(1.0f + expf(-s + 0.5f*s)) { 1723 } 1724 float operator()(int f) { 1725 const float x = f * nbFrames; 1726 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1727 } 1728 }; 1729 1730 class v_stretch { 1731 const GLfloat hw_w, hw_h; 1732 public: 1733 v_stretch(uint32_t hw_w, uint32_t hw_h) 1734 : hw_w(hw_w), hw_h(hw_h) { 1735 } 1736 void operator()(GLfloat* vtx, float v) { 1737 const GLfloat w = hw_w + (hw_w * v); 1738 const GLfloat h = hw_h - (hw_h * v); 1739 const GLfloat x = (hw_w - w) * 0.5f; 1740 const GLfloat y = (hw_h - h) * 0.5f; 1741 vtx[0] = x; vtx[1] = y; 1742 vtx[2] = x; vtx[3] = y + h; 1743 vtx[4] = x + w; vtx[5] = y + h; 1744 vtx[6] = x + w; vtx[7] = y; 1745 } 1746 }; 1747 1748 class h_stretch { 1749 const GLfloat hw_w, hw_h; 1750 public: 1751 h_stretch(uint32_t hw_w, uint32_t hw_h) 1752 : hw_w(hw_w), hw_h(hw_h) { 1753 } 1754 void operator()(GLfloat* vtx, float v) { 1755 const GLfloat w = hw_w - (hw_w * v); 1756 const GLfloat h = 1.0f; 1757 const GLfloat x = (hw_w - w) * 0.5f; 1758 const GLfloat y = (hw_h - h) * 0.5f; 1759 vtx[0] = x; vtx[1] = y; 1760 vtx[2] = x; vtx[3] = y + h; 1761 vtx[4] = x + w; vtx[5] = y + h; 1762 vtx[6] = x + w; vtx[7] = y; 1763 } 1764 }; 1765 1766 // the full animation is 24 frames 1767 const int nbFrames = 12; 1768 s_curve_interpolator itr(nbFrames, 7.5f); 1769 s_curve_interpolator itg(nbFrames, 8.0f); 1770 s_curve_interpolator itb(nbFrames, 8.5f); 1771 1772 v_stretch vverts(hw_w, hw_h); 1773 glEnable(GL_BLEND); 1774 glBlendFunc(GL_ONE, GL_ONE); 1775 for (int i=0 ; i<nbFrames ; i++) { 1776 float x, y, w, h; 1777 const float vr = itr(i); 1778 const float vg = itg(i); 1779 const float vb = itb(i); 1780 1781 // clear screen 1782 glColorMask(1,1,1,1); 1783 glClear(GL_COLOR_BUFFER_BIT); 1784 glEnable(GL_TEXTURE_2D); 1785 1786 // draw the red plane 1787 vverts(vtx, vr); 1788 glColorMask(1,0,0,1); 1789 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1790 1791 // draw the green plane 1792 vverts(vtx, vg); 1793 glColorMask(0,1,0,1); 1794 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1795 1796 // draw the blue plane 1797 vverts(vtx, vb); 1798 glColorMask(0,0,1,1); 1799 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1800 1801 // draw the white highlight (we use the last vertices) 1802 glDisable(GL_TEXTURE_2D); 1803 glColorMask(1,1,1,1); 1804 glColor4f(vg, vg, vg, 1); 1805 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1806 hw.flip(screenBounds); 1807 } 1808 1809 h_stretch hverts(hw_w, hw_h); 1810 glDisable(GL_BLEND); 1811 glDisable(GL_TEXTURE_2D); 1812 glColorMask(1,1,1,1); 1813 for (int i=0 ; i<nbFrames ; i++) { 1814 const float v = itg(i); 1815 hverts(vtx, v); 1816 glClear(GL_COLOR_BUFFER_BIT); 1817 glColor4f(1-v, 1-v, 1-v, 1); 1818 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1819 hw.flip(screenBounds); 1820 } 1821 1822 glColorMask(1,1,1,1); 1823 glEnable(GL_SCISSOR_TEST); 1824 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1825 glDeleteTextures(1, &tname); 1826 return NO_ERROR; 1827} 1828 1829status_t SurfaceFlinger::electronBeamOnAnimationImplLocked() 1830{ 1831 status_t result = PERMISSION_DENIED; 1832 1833 if (!GLExtensions::getInstance().haveFramebufferObject()) 1834 return INVALID_OPERATION; 1835 1836 1837 // get screen geometry 1838 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1839 const uint32_t hw_w = hw.getWidth(); 1840 const uint32_t hw_h = hw.getHeight(); 1841 const Region screenBounds(hw.bounds()); 1842 1843 GLfloat u, v; 1844 GLuint tname; 1845 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1846 if (result != NO_ERROR) { 1847 return result; 1848 } 1849 1850 // back to main framebuffer 1851 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1852 glDisable(GL_SCISSOR_TEST); 1853 1854 GLfloat vtx[8]; 1855 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1856 glEnable(GL_TEXTURE_2D); 1857 glBindTexture(GL_TEXTURE_2D, tname); 1858 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 1859 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1860 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1861 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1862 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1863 glVertexPointer(2, GL_FLOAT, 0, vtx); 1864 1865 class s_curve_interpolator { 1866 const float nbFrames, s, v; 1867 public: 1868 s_curve_interpolator(int nbFrames, float s) 1869 : nbFrames(1.0f / (nbFrames-1)), s(s), 1870 v(1.0f + expf(-s + 0.5f*s)) { 1871 } 1872 float operator()(int f) { 1873 const float x = f * nbFrames; 1874 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1875 } 1876 }; 1877 1878 class v_stretch { 1879 const GLfloat hw_w, hw_h; 1880 public: 1881 v_stretch(uint32_t hw_w, uint32_t hw_h) 1882 : hw_w(hw_w), hw_h(hw_h) { 1883 } 1884 void operator()(GLfloat* vtx, float v) { 1885 const GLfloat w = hw_w + (hw_w * v); 1886 const GLfloat h = hw_h - (hw_h * v); 1887 const GLfloat x = (hw_w - w) * 0.5f; 1888 const GLfloat y = (hw_h - h) * 0.5f; 1889 vtx[0] = x; vtx[1] = y; 1890 vtx[2] = x; vtx[3] = y + h; 1891 vtx[4] = x + w; vtx[5] = y + h; 1892 vtx[6] = x + w; vtx[7] = y; 1893 } 1894 }; 1895 1896 class h_stretch { 1897 const GLfloat hw_w, hw_h; 1898 public: 1899 h_stretch(uint32_t hw_w, uint32_t hw_h) 1900 : hw_w(hw_w), hw_h(hw_h) { 1901 } 1902 void operator()(GLfloat* vtx, float v) { 1903 const GLfloat w = hw_w - (hw_w * v); 1904 const GLfloat h = 1.0f; 1905 const GLfloat x = (hw_w - w) * 0.5f; 1906 const GLfloat y = (hw_h - h) * 0.5f; 1907 vtx[0] = x; vtx[1] = y; 1908 vtx[2] = x; vtx[3] = y + h; 1909 vtx[4] = x + w; vtx[5] = y + h; 1910 vtx[6] = x + w; vtx[7] = y; 1911 } 1912 }; 1913 1914 // the full animation is 12 frames 1915 int nbFrames = 8; 1916 s_curve_interpolator itr(nbFrames, 7.5f); 1917 s_curve_interpolator itg(nbFrames, 8.0f); 1918 s_curve_interpolator itb(nbFrames, 8.5f); 1919 1920 h_stretch hverts(hw_w, hw_h); 1921 glDisable(GL_BLEND); 1922 glDisable(GL_TEXTURE_2D); 1923 glColorMask(1,1,1,1); 1924 for (int i=nbFrames-1 ; i>=0 ; i--) { 1925 const float v = itg(i); 1926 hverts(vtx, v); 1927 glClear(GL_COLOR_BUFFER_BIT); 1928 glColor4f(1-v, 1-v, 1-v, 1); 1929 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1930 hw.flip(screenBounds); 1931 } 1932 1933 nbFrames = 4; 1934 v_stretch vverts(hw_w, hw_h); 1935 glEnable(GL_BLEND); 1936 glBlendFunc(GL_ONE, GL_ONE); 1937 for (int i=nbFrames-1 ; i>=0 ; i--) { 1938 float x, y, w, h; 1939 const float vr = itr(i); 1940 const float vg = itg(i); 1941 const float vb = itb(i); 1942 1943 // clear screen 1944 glColorMask(1,1,1,1); 1945 glClear(GL_COLOR_BUFFER_BIT); 1946 glEnable(GL_TEXTURE_2D); 1947 1948 // draw the red plane 1949 vverts(vtx, vr); 1950 glColorMask(1,0,0,1); 1951 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1952 1953 // draw the green plane 1954 vverts(vtx, vg); 1955 glColorMask(0,1,0,1); 1956 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1957 1958 // draw the blue plane 1959 vverts(vtx, vb); 1960 glColorMask(0,0,1,1); 1961 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1962 1963 hw.flip(screenBounds); 1964 } 1965 1966 glColorMask(1,1,1,1); 1967 glEnable(GL_SCISSOR_TEST); 1968 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1969 glDeleteTextures(1, &tname); 1970 1971 return NO_ERROR; 1972} 1973 1974// --------------------------------------------------------------------------- 1975 1976status_t SurfaceFlinger::turnElectronBeamOffImplLocked(int32_t mode) 1977{ 1978 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 1979 if (!hw.canDraw()) { 1980 // we're already off 1981 return NO_ERROR; 1982 } 1983 if (mode & ISurfaceComposer::eElectronBeamAnimationOff) { 1984 electronBeamOffAnimationImplLocked(); 1985 } 1986 1987 // always clear the whole screen at the end of the animation 1988 glClearColor(0,0,0,1); 1989 glDisable(GL_SCISSOR_TEST); 1990 glClear(GL_COLOR_BUFFER_BIT); 1991 glEnable(GL_SCISSOR_TEST); 1992 hw.flip( Region(hw.bounds()) ); 1993 1994 hw.setCanDraw(false); 1995 return NO_ERROR; 1996} 1997 1998status_t SurfaceFlinger::turnElectronBeamOff(int32_t mode) 1999{ 2000 class MessageTurnElectronBeamOff : public MessageBase { 2001 SurfaceFlinger* flinger; 2002 int32_t mode; 2003 status_t result; 2004 public: 2005 MessageTurnElectronBeamOff(SurfaceFlinger* flinger, int32_t mode) 2006 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2007 } 2008 status_t getResult() const { 2009 return result; 2010 } 2011 virtual bool handler() { 2012 Mutex::Autolock _l(flinger->mStateLock); 2013 result = flinger->turnElectronBeamOffImplLocked(mode); 2014 return true; 2015 } 2016 }; 2017 2018 sp<MessageBase> msg = new MessageTurnElectronBeamOff(this, mode); 2019 status_t res = postMessageSync(msg); 2020 if (res == NO_ERROR) { 2021 res = static_cast<MessageTurnElectronBeamOff*>( msg.get() )->getResult(); 2022 2023 // work-around: when the power-manager calls us we activate the 2024 // animation. eventually, the "on" animation will be called 2025 // by the power-manager itself 2026 mElectronBeamAnimationMode = mode; 2027 } 2028 return res; 2029} 2030 2031// --------------------------------------------------------------------------- 2032 2033status_t SurfaceFlinger::turnElectronBeamOnImplLocked(int32_t mode) 2034{ 2035 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2036 if (hw.canDraw()) { 2037 // we're already on 2038 return NO_ERROR; 2039 } 2040 if (mode & ISurfaceComposer::eElectronBeamAnimationOn) { 2041 electronBeamOnAnimationImplLocked(); 2042 } 2043 hw.setCanDraw(true); 2044 2045 // make sure to redraw the whole screen when the animation is done 2046 mDirtyRegion.set(hw.bounds()); 2047 signalEvent(); 2048 2049 return NO_ERROR; 2050} 2051 2052status_t SurfaceFlinger::turnElectronBeamOn(int32_t mode) 2053{ 2054 class MessageTurnElectronBeamOn : public MessageBase { 2055 SurfaceFlinger* flinger; 2056 int32_t mode; 2057 status_t result; 2058 public: 2059 MessageTurnElectronBeamOn(SurfaceFlinger* flinger, int32_t mode) 2060 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2061 } 2062 status_t getResult() const { 2063 return result; 2064 } 2065 virtual bool handler() { 2066 Mutex::Autolock _l(flinger->mStateLock); 2067 result = flinger->turnElectronBeamOnImplLocked(mode); 2068 return true; 2069 } 2070 }; 2071 2072 postMessageAsync( new MessageTurnElectronBeamOn(this, mode) ); 2073 return NO_ERROR; 2074} 2075 2076// --------------------------------------------------------------------------- 2077 2078status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy, 2079 sp<IMemoryHeap>* heap, 2080 uint32_t* w, uint32_t* h, PixelFormat* f, 2081 uint32_t sw, uint32_t sh, 2082 uint32_t minLayerZ, uint32_t maxLayerZ) 2083{ 2084 status_t result = PERMISSION_DENIED; 2085 2086 // only one display supported for now 2087 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2088 return BAD_VALUE; 2089 2090 if (!GLExtensions::getInstance().haveFramebufferObject()) 2091 return INVALID_OPERATION; 2092 2093 // get screen geometry 2094 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 2095 const uint32_t hw_w = hw.getWidth(); 2096 const uint32_t hw_h = hw.getHeight(); 2097 2098 if ((sw > hw_w) || (sh > hw_h)) 2099 return BAD_VALUE; 2100 2101 sw = (!sw) ? hw_w : sw; 2102 sh = (!sh) ? hw_h : sh; 2103 const size_t size = sw * sh * 4; 2104 2105 // make sure to clear all GL error flags 2106 while ( glGetError() != GL_NO_ERROR ) ; 2107 2108 // create a FBO 2109 GLuint name, tname; 2110 glGenRenderbuffersOES(1, &tname); 2111 glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname); 2112 glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh); 2113 glGenFramebuffersOES(1, &name); 2114 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 2115 glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, 2116 GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname); 2117 2118 GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES); 2119 if (status == GL_FRAMEBUFFER_COMPLETE_OES) { 2120 2121 // invert everything, b/c glReadPixel() below will invert the FB 2122 glViewport(0, 0, sw, sh); 2123 glMatrixMode(GL_PROJECTION); 2124 glPushMatrix(); 2125 glLoadIdentity(); 2126 glOrthof(0, hw_w, 0, hw_h, 0, 1); 2127 glMatrixMode(GL_MODELVIEW); 2128 2129 // redraw the screen entirely... 2130 glClearColor(0,0,0,1); 2131 glClear(GL_COLOR_BUFFER_BIT); 2132 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 2133 const size_t count = layers.size(); 2134 for (size_t i=0 ; i<count ; ++i) { 2135 const sp<LayerBase>& layer(layers[i]); 2136 const uint32_t z = layer->drawingState().z; 2137 if (z >= minLayerZ && z <= maxLayerZ) { 2138 layer->drawForSreenShot(); 2139 } 2140 } 2141 2142 // XXX: this is needed on tegra 2143 glScissor(0, 0, sw, sh); 2144 2145 // check for errors and return screen capture 2146 if (glGetError() != GL_NO_ERROR) { 2147 // error while rendering 2148 result = INVALID_OPERATION; 2149 } else { 2150 // allocate shared memory large enough to hold the 2151 // screen capture 2152 sp<MemoryHeapBase> base( 2153 new MemoryHeapBase(size, 0, "screen-capture") ); 2154 void* const ptr = base->getBase(); 2155 if (ptr) { 2156 // capture the screen with glReadPixels() 2157 glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr); 2158 if (glGetError() == GL_NO_ERROR) { 2159 *heap = base; 2160 *w = sw; 2161 *h = sh; 2162 *f = PIXEL_FORMAT_RGBA_8888; 2163 result = NO_ERROR; 2164 } 2165 } else { 2166 result = NO_MEMORY; 2167 } 2168 } 2169 2170 glEnable(GL_SCISSOR_TEST); 2171 glViewport(0, 0, hw_w, hw_h); 2172 glMatrixMode(GL_PROJECTION); 2173 glPopMatrix(); 2174 glMatrixMode(GL_MODELVIEW); 2175 2176 2177 } else { 2178 result = BAD_VALUE; 2179 } 2180 2181 // release FBO resources 2182 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 2183 glDeleteRenderbuffersOES(1, &tname); 2184 glDeleteFramebuffersOES(1, &name); 2185 return result; 2186} 2187 2188 2189status_t SurfaceFlinger::captureScreen(DisplayID dpy, 2190 sp<IMemoryHeap>* heap, 2191 uint32_t* width, uint32_t* height, PixelFormat* format, 2192 uint32_t sw, uint32_t sh, 2193 uint32_t minLayerZ, uint32_t maxLayerZ) 2194{ 2195 // only one display supported for now 2196 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2197 return BAD_VALUE; 2198 2199 if (!GLExtensions::getInstance().haveFramebufferObject()) 2200 return INVALID_OPERATION; 2201 2202 class MessageCaptureScreen : public MessageBase { 2203 SurfaceFlinger* flinger; 2204 DisplayID dpy; 2205 sp<IMemoryHeap>* heap; 2206 uint32_t* w; 2207 uint32_t* h; 2208 PixelFormat* f; 2209 uint32_t sw; 2210 uint32_t sh; 2211 uint32_t minLayerZ; 2212 uint32_t maxLayerZ; 2213 status_t result; 2214 public: 2215 MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy, 2216 sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f, 2217 uint32_t sw, uint32_t sh, 2218 uint32_t minLayerZ, uint32_t maxLayerZ) 2219 : flinger(flinger), dpy(dpy), 2220 heap(heap), w(w), h(h), f(f), sw(sw), sh(sh), 2221 minLayerZ(minLayerZ), maxLayerZ(maxLayerZ), 2222 result(PERMISSION_DENIED) 2223 { 2224 } 2225 status_t getResult() const { 2226 return result; 2227 } 2228 virtual bool handler() { 2229 Mutex::Autolock _l(flinger->mStateLock); 2230 2231 // if we have secure windows, never allow the screen capture 2232 if (flinger->mSecureFrameBuffer) 2233 return true; 2234 2235 result = flinger->captureScreenImplLocked(dpy, 2236 heap, w, h, f, sw, sh, minLayerZ, maxLayerZ); 2237 2238 return true; 2239 } 2240 }; 2241 2242 sp<MessageBase> msg = new MessageCaptureScreen(this, 2243 dpy, heap, width, height, format, sw, sh, minLayerZ, maxLayerZ); 2244 status_t res = postMessageSync(msg); 2245 if (res == NO_ERROR) { 2246 res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult(); 2247 } 2248 return res; 2249} 2250 2251// --------------------------------------------------------------------------- 2252 2253sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const 2254{ 2255 sp<Layer> result; 2256 Mutex::Autolock _l(mStateLock); 2257 result = mLayerMap.valueFor( sur->asBinder() ).promote(); 2258 return result; 2259} 2260 2261// --------------------------------------------------------------------------- 2262 2263Client::Client(const sp<SurfaceFlinger>& flinger) 2264 : mFlinger(flinger), mNameGenerator(1) 2265{ 2266} 2267 2268Client::~Client() 2269{ 2270 const size_t count = mLayers.size(); 2271 for (size_t i=0 ; i<count ; i++) { 2272 sp<LayerBaseClient> layer(mLayers.valueAt(i).promote()); 2273 if (layer != 0) { 2274 mFlinger->removeLayer(layer); 2275 } 2276 } 2277} 2278 2279status_t Client::initCheck() const { 2280 return NO_ERROR; 2281} 2282 2283ssize_t Client::attachLayer(const sp<LayerBaseClient>& layer) 2284{ 2285 int32_t name = android_atomic_inc(&mNameGenerator); 2286 mLayers.add(name, layer); 2287 return name; 2288} 2289 2290void Client::detachLayer(const LayerBaseClient* layer) 2291{ 2292 // we do a linear search here, because this doesn't happen often 2293 const size_t count = mLayers.size(); 2294 for (size_t i=0 ; i<count ; i++) { 2295 if (mLayers.valueAt(i) == layer) { 2296 mLayers.removeItemsAt(i, 1); 2297 break; 2298 } 2299 } 2300} 2301sp<LayerBaseClient> Client::getLayerUser(int32_t i) const { 2302 sp<LayerBaseClient> lbc; 2303 const wp<LayerBaseClient>& layer(mLayers.valueFor(i)); 2304 if (layer != 0) { 2305 lbc = layer.promote(); 2306 LOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i)); 2307 } 2308 return lbc; 2309} 2310 2311sp<IMemoryHeap> Client::getControlBlock() const { 2312 return 0; 2313} 2314ssize_t Client::getTokenForSurface(const sp<ISurface>& sur) const { 2315 return -1; 2316} 2317sp<ISurface> Client::createSurface( 2318 ISurfaceComposerClient::surface_data_t* params, int pid, 2319 const String8& name, 2320 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2321 uint32_t flags) 2322{ 2323 return mFlinger->createSurface(this, pid, name, params, 2324 display, w, h, format, flags); 2325} 2326status_t Client::destroySurface(SurfaceID sid) { 2327 return mFlinger->removeSurface(this, sid); 2328} 2329status_t Client::setState(int32_t count, const layer_state_t* states) { 2330 return mFlinger->setClientState(this, count, states); 2331} 2332 2333// --------------------------------------------------------------------------- 2334 2335UserClient::UserClient(const sp<SurfaceFlinger>& flinger) 2336 : ctrlblk(0), mBitmap(0), mFlinger(flinger) 2337{ 2338 const int pgsize = getpagesize(); 2339 const int cblksize = ((sizeof(SharedClient)+(pgsize-1))&~(pgsize-1)); 2340 2341 mCblkHeap = new MemoryHeapBase(cblksize, 0, 2342 "SurfaceFlinger Client control-block"); 2343 2344 ctrlblk = static_cast<SharedClient *>(mCblkHeap->getBase()); 2345 if (ctrlblk) { // construct the shared structure in-place. 2346 new(ctrlblk) SharedClient; 2347 } 2348} 2349 2350UserClient::~UserClient() 2351{ 2352 if (ctrlblk) { 2353 ctrlblk->~SharedClient(); // destroy our shared-structure. 2354 } 2355 2356 /* 2357 * When a UserClient dies, it's unclear what to do exactly. 2358 * We could go ahead and destroy all surfaces linked to that client 2359 * however, it wouldn't be fair to the main Client 2360 * (usually the the window-manager), which might want to re-target 2361 * the layer to another UserClient. 2362 * I think the best is to do nothing, or not much; in most cases the 2363 * WM itself will go ahead and clean things up when it detects a client of 2364 * his has died. 2365 * The remaining question is what to display? currently we keep 2366 * just keep the current buffer. 2367 */ 2368} 2369 2370status_t UserClient::initCheck() const { 2371 return ctrlblk == 0 ? NO_INIT : NO_ERROR; 2372} 2373 2374void UserClient::detachLayer(const Layer* layer) 2375{ 2376 int32_t name = layer->getToken(); 2377 if (name >= 0) { 2378 int32_t mask = 1LU<<name; 2379 if ((android_atomic_and(~mask, &mBitmap) & mask) == 0) { 2380 LOGW("token %d wasn't marked as used %08x", name, int(mBitmap)); 2381 } 2382 } 2383} 2384 2385sp<IMemoryHeap> UserClient::getControlBlock() const { 2386 return mCblkHeap; 2387} 2388 2389ssize_t UserClient::getTokenForSurface(const sp<ISurface>& sur) const 2390{ 2391 int32_t name = NAME_NOT_FOUND; 2392 sp<Layer> layer(mFlinger->getLayer(sur)); 2393 if (layer == 0) { 2394 return name; 2395 } 2396 2397 // if this layer already has a token, just return it 2398 name = layer->getToken(); 2399 if ((name >= 0) && (layer->getClient() == this)) { 2400 return name; 2401 } 2402 2403 name = 0; 2404 do { 2405 int32_t mask = 1LU<<name; 2406 if ((android_atomic_or(mask, &mBitmap) & mask) == 0) { 2407 // we found and locked that name 2408 status_t err = layer->setToken( 2409 const_cast<UserClient*>(this), ctrlblk, name); 2410 if (err != NO_ERROR) { 2411 // free the name 2412 android_atomic_and(~mask, &mBitmap); 2413 name = err; 2414 } 2415 break; 2416 } 2417 if (++name > 31) 2418 name = NO_MEMORY; 2419 } while(name >= 0); 2420 2421 //LOGD("getTokenForSurface(%p) => %d (client=%p, bitmap=%08lx)", 2422 // sur->asBinder().get(), name, this, mBitmap); 2423 return name; 2424} 2425 2426sp<ISurface> UserClient::createSurface( 2427 ISurfaceComposerClient::surface_data_t* params, int pid, 2428 const String8& name, 2429 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2430 uint32_t flags) { 2431 return 0; 2432} 2433status_t UserClient::destroySurface(SurfaceID sid) { 2434 return INVALID_OPERATION; 2435} 2436status_t UserClient::setState(int32_t count, const layer_state_t* states) { 2437 return INVALID_OPERATION; 2438} 2439 2440// --------------------------------------------------------------------------- 2441 2442GraphicPlane::GraphicPlane() 2443 : mHw(0) 2444{ 2445} 2446 2447GraphicPlane::~GraphicPlane() { 2448 delete mHw; 2449} 2450 2451bool GraphicPlane::initialized() const { 2452 return mHw ? true : false; 2453} 2454 2455int GraphicPlane::getWidth() const { 2456 return mWidth; 2457} 2458 2459int GraphicPlane::getHeight() const { 2460 return mHeight; 2461} 2462 2463void GraphicPlane::setDisplayHardware(DisplayHardware *hw) 2464{ 2465 mHw = hw; 2466 2467 // initialize the display orientation transform. 2468 // it's a constant that should come from the display driver. 2469 int displayOrientation = ISurfaceComposer::eOrientationDefault; 2470 char property[PROPERTY_VALUE_MAX]; 2471 if (property_get("ro.sf.hwrotation", property, NULL) > 0) { 2472 //displayOrientation 2473 switch (atoi(property)) { 2474 case 90: 2475 displayOrientation = ISurfaceComposer::eOrientation90; 2476 break; 2477 case 270: 2478 displayOrientation = ISurfaceComposer::eOrientation270; 2479 break; 2480 } 2481 } 2482 2483 const float w = hw->getWidth(); 2484 const float h = hw->getHeight(); 2485 GraphicPlane::orientationToTransfrom(displayOrientation, w, h, 2486 &mDisplayTransform); 2487 if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) { 2488 mDisplayWidth = h; 2489 mDisplayHeight = w; 2490 } else { 2491 mDisplayWidth = w; 2492 mDisplayHeight = h; 2493 } 2494 2495 setOrientation(ISurfaceComposer::eOrientationDefault); 2496} 2497 2498status_t GraphicPlane::orientationToTransfrom( 2499 int orientation, int w, int h, Transform* tr) 2500{ 2501 uint32_t flags = 0; 2502 switch (orientation) { 2503 case ISurfaceComposer::eOrientationDefault: 2504 flags = Transform::ROT_0; 2505 break; 2506 case ISurfaceComposer::eOrientation90: 2507 flags = Transform::ROT_90; 2508 break; 2509 case ISurfaceComposer::eOrientation180: 2510 flags = Transform::ROT_180; 2511 break; 2512 case ISurfaceComposer::eOrientation270: 2513 flags = Transform::ROT_270; 2514 break; 2515 default: 2516 return BAD_VALUE; 2517 } 2518 tr->set(flags, w, h); 2519 return NO_ERROR; 2520} 2521 2522status_t GraphicPlane::setOrientation(int orientation) 2523{ 2524 // If the rotation can be handled in hardware, this is where 2525 // the magic should happen. 2526 2527 const DisplayHardware& hw(displayHardware()); 2528 const float w = mDisplayWidth; 2529 const float h = mDisplayHeight; 2530 mWidth = int(w); 2531 mHeight = int(h); 2532 2533 Transform orientationTransform; 2534 GraphicPlane::orientationToTransfrom(orientation, w, h, 2535 &orientationTransform); 2536 if (orientation & ISurfaceComposer::eOrientationSwapMask) { 2537 mWidth = int(h); 2538 mHeight = int(w); 2539 } 2540 2541 mOrientation = orientation; 2542 mGlobalTransform = mDisplayTransform * orientationTransform; 2543 return NO_ERROR; 2544} 2545 2546const DisplayHardware& GraphicPlane::displayHardware() const { 2547 return *mHw; 2548} 2549 2550DisplayHardware& GraphicPlane::editDisplayHardware() { 2551 return *mHw; 2552} 2553 2554const Transform& GraphicPlane::transform() const { 2555 return mGlobalTransform; 2556} 2557 2558EGLDisplay GraphicPlane::getEGLDisplay() const { 2559 return mHw->getEGLDisplay(); 2560} 2561 2562// --------------------------------------------------------------------------- 2563 2564}; // namespace android 2565