SurfaceFlinger.cpp revision abd671a08a41519a7ab3d438a500efe0ef0bfc1d
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 57/* ideally AID_GRAPHICS would be in a semi-public header 58 * or there would be a way to map a user/group name to its id 59 */ 60#ifndef AID_GRAPHICS 61#define AID_GRAPHICS 1003 62#endif 63 64#define DISPLAY_COUNT 1 65 66namespace android { 67// --------------------------------------------------------------------------- 68 69SurfaceFlinger::SurfaceFlinger() 70 : BnSurfaceComposer(), Thread(false), 71 mTransactionFlags(0), 72 mTransactionCount(0), 73 mResizeTransationPending(false), 74 mLayersRemoved(false), 75 mBootTime(systemTime()), 76 mHardwareTest("android.permission.HARDWARE_TEST"), 77 mAccessSurfaceFlinger("android.permission.ACCESS_SURFACE_FLINGER"), 78 mReadFramebuffer("android.permission.READ_FRAME_BUFFER"), 79 mDump("android.permission.DUMP"), 80 mVisibleRegionsDirty(false), 81 mDeferReleaseConsole(false), 82 mFreezeDisplay(false), 83 mElectronBeamAnimationMode(0), 84 mFreezeCount(0), 85 mFreezeDisplayTime(0), 86 mDebugRegion(0), 87 mDebugBackground(0), 88 mDebugInSwapBuffers(0), 89 mLastSwapBufferTime(0), 90 mDebugInTransaction(0), 91 mLastTransactionTime(0), 92 mBootFinished(false), 93 mConsoleSignals(0), 94 mSecureFrameBuffer(0) 95{ 96 init(); 97} 98 99void SurfaceFlinger::init() 100{ 101 LOGI("SurfaceFlinger is starting"); 102 103 // debugging stuff... 104 char value[PROPERTY_VALUE_MAX]; 105 property_get("debug.sf.showupdates", value, "0"); 106 mDebugRegion = atoi(value); 107 property_get("debug.sf.showbackground", value, "0"); 108 mDebugBackground = atoi(value); 109 110 LOGI_IF(mDebugRegion, "showupdates enabled"); 111 LOGI_IF(mDebugBackground, "showbackground enabled"); 112} 113 114SurfaceFlinger::~SurfaceFlinger() 115{ 116 glDeleteTextures(1, &mWormholeTexName); 117} 118 119overlay_control_device_t* SurfaceFlinger::getOverlayEngine() const 120{ 121 return graphicPlane(0).displayHardware().getOverlayEngine(); 122} 123 124sp<IMemoryHeap> SurfaceFlinger::getCblk() const 125{ 126 return mServerHeap; 127} 128 129sp<ISurfaceComposerClient> SurfaceFlinger::createConnection() 130{ 131 sp<ISurfaceComposerClient> bclient; 132 sp<Client> client(new Client(this)); 133 status_t err = client->initCheck(); 134 if (err == NO_ERROR) { 135 bclient = client; 136 } 137 return bclient; 138} 139 140sp<ISurfaceComposerClient> SurfaceFlinger::createClientConnection() 141{ 142 sp<ISurfaceComposerClient> bclient; 143 sp<UserClient> client(new UserClient(this)); 144 status_t err = client->initCheck(); 145 if (err == NO_ERROR) { 146 bclient = client; 147 } 148 return bclient; 149} 150 151 152const GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) const 153{ 154 LOGE_IF(uint32_t(dpy) >= DISPLAY_COUNT, "Invalid DisplayID %d", dpy); 155 const GraphicPlane& plane(mGraphicPlanes[dpy]); 156 return plane; 157} 158 159GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) 160{ 161 return const_cast<GraphicPlane&>( 162 const_cast<SurfaceFlinger const *>(this)->graphicPlane(dpy)); 163} 164 165void SurfaceFlinger::bootFinished() 166{ 167 const nsecs_t now = systemTime(); 168 const nsecs_t duration = now - mBootTime; 169 LOGI("Boot is finished (%ld ms)", long(ns2ms(duration)) ); 170 mBootFinished = true; 171 property_set("ctl.stop", "bootanim"); 172} 173 174void SurfaceFlinger::onFirstRef() 175{ 176 run("SurfaceFlinger", PRIORITY_URGENT_DISPLAY); 177 178 // Wait for the main thread to be done with its initialization 179 mReadyToRunBarrier.wait(); 180} 181 182static inline uint16_t pack565(int r, int g, int b) { 183 return (r<<11)|(g<<5)|b; 184} 185 186status_t SurfaceFlinger::readyToRun() 187{ 188 LOGI( "SurfaceFlinger's main thread ready to run. " 189 "Initializing graphics H/W..."); 190 191 // we only support one display currently 192 int dpy = 0; 193 194 { 195 // initialize the main display 196 GraphicPlane& plane(graphicPlane(dpy)); 197 DisplayHardware* const hw = new DisplayHardware(this, dpy); 198 plane.setDisplayHardware(hw); 199 } 200 201 // create the shared control-block 202 mServerHeap = new MemoryHeapBase(4096, 203 MemoryHeapBase::READ_ONLY, "SurfaceFlinger read-only heap"); 204 LOGE_IF(mServerHeap==0, "can't create shared memory dealer"); 205 206 mServerCblk = static_cast<surface_flinger_cblk_t*>(mServerHeap->getBase()); 207 LOGE_IF(mServerCblk==0, "can't get to shared control block's address"); 208 209 new(mServerCblk) surface_flinger_cblk_t; 210 211 // initialize primary screen 212 // (other display should be initialized in the same manner, but 213 // asynchronously, as they could come and go. None of this is supported 214 // yet). 215 const GraphicPlane& plane(graphicPlane(dpy)); 216 const DisplayHardware& hw = plane.displayHardware(); 217 const uint32_t w = hw.getWidth(); 218 const uint32_t h = hw.getHeight(); 219 const uint32_t f = hw.getFormat(); 220 hw.makeCurrent(); 221 222 // initialize the shared control block 223 mServerCblk->connected |= 1<<dpy; 224 display_cblk_t* dcblk = mServerCblk->displays + dpy; 225 memset(dcblk, 0, sizeof(display_cblk_t)); 226 dcblk->w = plane.getWidth(); 227 dcblk->h = plane.getHeight(); 228 dcblk->format = f; 229 dcblk->orientation = ISurfaceComposer::eOrientationDefault; 230 dcblk->xdpi = hw.getDpiX(); 231 dcblk->ydpi = hw.getDpiY(); 232 dcblk->fps = hw.getRefreshRate(); 233 dcblk->density = hw.getDensity(); 234 235 // Initialize OpenGL|ES 236 glPixelStorei(GL_UNPACK_ALIGNMENT, 4); 237 glPixelStorei(GL_PACK_ALIGNMENT, 4); 238 glEnableClientState(GL_VERTEX_ARRAY); 239 glEnable(GL_SCISSOR_TEST); 240 glShadeModel(GL_FLAT); 241 glDisable(GL_DITHER); 242 glDisable(GL_CULL_FACE); 243 244 const uint16_t g0 = pack565(0x0F,0x1F,0x0F); 245 const uint16_t g1 = pack565(0x17,0x2f,0x17); 246 const uint16_t textureData[4] = { g0, g1, g1, g0 }; 247 glGenTextures(1, &mWormholeTexName); 248 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 249 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 250 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 251 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 252 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 253 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, 254 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, textureData); 255 256 glViewport(0, 0, w, h); 257 glMatrixMode(GL_PROJECTION); 258 glLoadIdentity(); 259 glOrthof(0, w, h, 0, 0, 1); 260 261 LayerDim::initDimmer(this, w, h); 262 263 mReadyToRunBarrier.open(); 264 265 /* 266 * We're now ready to accept clients... 267 */ 268 269 // start boot animation 270 property_set("ctl.start", "bootanim"); 271 272 return NO_ERROR; 273} 274 275// ---------------------------------------------------------------------------- 276#if 0 277#pragma mark - 278#pragma mark Events Handler 279#endif 280 281void SurfaceFlinger::waitForEvent() 282{ 283 while (true) { 284 nsecs_t timeout = -1; 285 const nsecs_t freezeDisplayTimeout = ms2ns(5000); 286 if (UNLIKELY(isFrozen())) { 287 // wait 5 seconds 288 const nsecs_t now = systemTime(); 289 if (mFreezeDisplayTime == 0) { 290 mFreezeDisplayTime = now; 291 } 292 nsecs_t waitTime = freezeDisplayTimeout - (now - mFreezeDisplayTime); 293 timeout = waitTime>0 ? waitTime : 0; 294 } 295 296 sp<MessageBase> msg = mEventQueue.waitMessage(timeout); 297 298 // see if we timed out 299 if (isFrozen()) { 300 const nsecs_t now = systemTime(); 301 nsecs_t frozenTime = (now - mFreezeDisplayTime); 302 if (frozenTime >= freezeDisplayTimeout) { 303 // we timed out and are still frozen 304 LOGW("timeout expired mFreezeDisplay=%d, mFreezeCount=%d", 305 mFreezeDisplay, mFreezeCount); 306 mFreezeDisplayTime = 0; 307 mFreezeCount = 0; 308 mFreezeDisplay = false; 309 } 310 } 311 312 if (msg != 0) { 313 switch (msg->what) { 314 case MessageQueue::INVALIDATE: 315 // invalidate message, just return to the main loop 316 return; 317 } 318 } 319 } 320} 321 322void SurfaceFlinger::signalEvent() { 323 mEventQueue.invalidate(); 324} 325 326void SurfaceFlinger::signal() const { 327 // this is the IPC call 328 const_cast<SurfaceFlinger*>(this)->signalEvent(); 329} 330 331status_t SurfaceFlinger::postMessageAsync(const sp<MessageBase>& msg, 332 nsecs_t reltime, uint32_t flags) 333{ 334 return mEventQueue.postMessage(msg, reltime, flags); 335} 336 337status_t SurfaceFlinger::postMessageSync(const sp<MessageBase>& msg, 338 nsecs_t reltime, uint32_t flags) 339{ 340 status_t res = mEventQueue.postMessage(msg, reltime, flags); 341 if (res == NO_ERROR) { 342 msg->wait(); 343 } 344 return res; 345} 346 347// ---------------------------------------------------------------------------- 348#if 0 349#pragma mark - 350#pragma mark Main loop 351#endif 352 353bool SurfaceFlinger::threadLoop() 354{ 355 waitForEvent(); 356 357 // check for transactions 358 if (UNLIKELY(mConsoleSignals)) { 359 handleConsoleEvents(); 360 } 361 362 if (LIKELY(mTransactionCount == 0)) { 363 // if we're in a global transaction, don't do anything. 364 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 365 uint32_t transactionFlags = getTransactionFlags(mask); 366 if (LIKELY(transactionFlags)) { 367 handleTransaction(transactionFlags); 368 } 369 } 370 371 // post surfaces (if needed) 372 handlePageFlip(); 373 374 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 375 if (LIKELY(hw.canDraw() && !isFrozen())) { 376 // repaint the framebuffer (if needed) 377 378 const int index = hw.getCurrentBufferIndex(); 379 GraphicLog& logger(GraphicLog::getInstance()); 380 381 logger.log(GraphicLog::SF_REPAINT, index); 382 handleRepaint(); 383 384 // inform the h/w that we're done compositing 385 logger.log(GraphicLog::SF_COMPOSITION_COMPLETE, index); 386 hw.compositionComplete(); 387 388 // release the clients before we flip ('cause flip might block) 389 logger.log(GraphicLog::SF_UNLOCK_CLIENTS, index); 390 unlockClients(); 391 392 logger.log(GraphicLog::SF_SWAP_BUFFERS, index); 393 postFramebuffer(); 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 // here the transaction has been committed 463 } 464 465 /* 466 * Clean-up all layers that went away 467 * (do this without the lock held) 468 */ 469 const size_t count = ditchedLayers.size(); 470 for (size_t i=0 ; i<count ; i++) { 471 if (ditchedLayers[i] != 0) { 472 //LOGD("ditching layer %p", ditchedLayers[i].get()); 473 ditchedLayers[i]->ditch(); 474 } 475 } 476} 477 478void SurfaceFlinger::handleTransactionLocked( 479 uint32_t transactionFlags, Vector< sp<LayerBase> >& ditchedLayers) 480{ 481 const LayerVector& currentLayers(mCurrentState.layersSortedByZ); 482 const size_t count = currentLayers.size(); 483 484 /* 485 * Traversal of the children 486 * (perform the transaction for each of them if needed) 487 */ 488 489 const bool layersNeedTransaction = transactionFlags & eTraversalNeeded; 490 if (layersNeedTransaction) { 491 for (size_t i=0 ; i<count ; i++) { 492 const sp<LayerBase>& layer = currentLayers[i]; 493 uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded); 494 if (!trFlags) continue; 495 496 const uint32_t flags = layer->doTransaction(0); 497 if (flags & Layer::eVisibleRegion) 498 mVisibleRegionsDirty = true; 499 } 500 } 501 502 /* 503 * Perform our own transaction if needed 504 */ 505 506 if (transactionFlags & eTransactionNeeded) { 507 if (mCurrentState.orientation != mDrawingState.orientation) { 508 // the orientation has changed, recompute all visible regions 509 // and invalidate everything. 510 511 const int dpy = 0; 512 const int orientation = mCurrentState.orientation; 513 const uint32_t type = mCurrentState.orientationType; 514 GraphicPlane& plane(graphicPlane(dpy)); 515 plane.setOrientation(orientation); 516 517 // update the shared control block 518 const DisplayHardware& hw(plane.displayHardware()); 519 volatile display_cblk_t* dcblk = mServerCblk->displays + dpy; 520 dcblk->orientation = orientation; 521 dcblk->w = plane.getWidth(); 522 dcblk->h = plane.getHeight(); 523 524 mVisibleRegionsDirty = true; 525 mDirtyRegion.set(hw.bounds()); 526 } 527 528 if (mCurrentState.freezeDisplay != mDrawingState.freezeDisplay) { 529 // freezing or unfreezing the display -> trigger animation if needed 530 mFreezeDisplay = mCurrentState.freezeDisplay; 531 if (mFreezeDisplay) 532 mFreezeDisplayTime = 0; 533 } 534 535 if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) { 536 // layers have been added 537 mVisibleRegionsDirty = true; 538 } 539 540 // some layers might have been removed, so 541 // we need to update the regions they're exposing. 542 if (mLayersRemoved) { 543 mLayersRemoved = false; 544 mVisibleRegionsDirty = true; 545 const LayerVector& previousLayers(mDrawingState.layersSortedByZ); 546 const size_t count = previousLayers.size(); 547 for (size_t i=0 ; i<count ; i++) { 548 const sp<LayerBase>& layer(previousLayers[i]); 549 if (currentLayers.indexOf( layer ) < 0) { 550 // this layer is not visible anymore 551 ditchedLayers.add(layer); 552 mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen); 553 } 554 } 555 } 556 } 557 558 commitTransaction(); 559} 560 561sp<FreezeLock> SurfaceFlinger::getFreezeLock() const 562{ 563 return new FreezeLock(const_cast<SurfaceFlinger *>(this)); 564} 565 566void SurfaceFlinger::computeVisibleRegions( 567 LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion) 568{ 569 const GraphicPlane& plane(graphicPlane(0)); 570 const Transform& planeTransform(plane.transform()); 571 const DisplayHardware& hw(plane.displayHardware()); 572 const Region screenRegion(hw.bounds()); 573 574 Region aboveOpaqueLayers; 575 Region aboveCoveredLayers; 576 Region dirty; 577 578 bool secureFrameBuffer = false; 579 580 size_t i = currentLayers.size(); 581 while (i--) { 582 const sp<LayerBase>& layer = currentLayers[i]; 583 layer->validateVisibility(planeTransform); 584 585 // start with the whole surface at its current location 586 const Layer::State& s(layer->drawingState()); 587 588 /* 589 * opaqueRegion: area of a surface that is fully opaque. 590 */ 591 Region opaqueRegion; 592 593 /* 594 * visibleRegion: area of a surface that is visible on screen 595 * and not fully transparent. This is essentially the layer's 596 * footprint minus the opaque regions above it. 597 * Areas covered by a translucent surface are considered visible. 598 */ 599 Region visibleRegion; 600 601 /* 602 * coveredRegion: area of a surface that is covered by all 603 * visible regions above it (which includes the translucent areas). 604 */ 605 Region coveredRegion; 606 607 608 // handle hidden surfaces by setting the visible region to empty 609 if (LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) { 610 const bool translucent = layer->needsBlending(); 611 const Rect bounds(layer->visibleBounds()); 612 visibleRegion.set(bounds); 613 visibleRegion.andSelf(screenRegion); 614 if (!visibleRegion.isEmpty()) { 615 // Remove the transparent area from the visible region 616 if (translucent) { 617 visibleRegion.subtractSelf(layer->transparentRegionScreen); 618 } 619 620 // compute the opaque region 621 const int32_t layerOrientation = layer->getOrientation(); 622 if (s.alpha==255 && !translucent && 623 ((layerOrientation & Transform::ROT_INVALID) == false)) { 624 // the opaque region is the layer's footprint 625 opaqueRegion = visibleRegion; 626 } 627 } 628 } 629 630 // Clip the covered region to the visible region 631 coveredRegion = aboveCoveredLayers.intersect(visibleRegion); 632 633 // Update aboveCoveredLayers for next (lower) layer 634 aboveCoveredLayers.orSelf(visibleRegion); 635 636 // subtract the opaque region covered by the layers above us 637 visibleRegion.subtractSelf(aboveOpaqueLayers); 638 639 // compute this layer's dirty region 640 if (layer->contentDirty) { 641 // we need to invalidate the whole region 642 dirty = visibleRegion; 643 // as well, as the old visible region 644 dirty.orSelf(layer->visibleRegionScreen); 645 layer->contentDirty = false; 646 } else { 647 /* compute the exposed region: 648 * the exposed region consists of two components: 649 * 1) what's VISIBLE now and was COVERED before 650 * 2) what's EXPOSED now less what was EXPOSED before 651 * 652 * note that (1) is conservative, we start with the whole 653 * visible region but only keep what used to be covered by 654 * something -- which mean it may have been exposed. 655 * 656 * (2) handles areas that were not covered by anything but got 657 * exposed because of a resize. 658 */ 659 const Region newExposed = visibleRegion - coveredRegion; 660 const Region oldVisibleRegion = layer->visibleRegionScreen; 661 const Region oldCoveredRegion = layer->coveredRegionScreen; 662 const Region oldExposed = oldVisibleRegion - oldCoveredRegion; 663 dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed); 664 } 665 dirty.subtractSelf(aboveOpaqueLayers); 666 667 // accumulate to the screen dirty region 668 dirtyRegion.orSelf(dirty); 669 670 // Update aboveOpaqueLayers for next (lower) layer 671 aboveOpaqueLayers.orSelf(opaqueRegion); 672 673 // Store the visible region is screen space 674 layer->setVisibleRegion(visibleRegion); 675 layer->setCoveredRegion(coveredRegion); 676 677 // If a secure layer is partially visible, lock-down the screen! 678 if (layer->isSecure() && !visibleRegion.isEmpty()) { 679 secureFrameBuffer = true; 680 } 681 } 682 683 // invalidate the areas where a layer was removed 684 dirtyRegion.orSelf(mDirtyRegionRemovedLayer); 685 mDirtyRegionRemovedLayer.clear(); 686 687 mSecureFrameBuffer = secureFrameBuffer; 688 opaqueRegion = aboveOpaqueLayers; 689} 690 691 692void SurfaceFlinger::commitTransaction() 693{ 694 mDrawingState = mCurrentState; 695 mResizeTransationPending = false; 696 mTransactionCV.broadcast(); 697} 698 699void SurfaceFlinger::handlePageFlip() 700{ 701 bool visibleRegions = mVisibleRegionsDirty; 702 LayerVector& currentLayers = const_cast<LayerVector&>( 703 mDrawingState.layersSortedByZ); 704 visibleRegions |= lockPageFlip(currentLayers); 705 706 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 707 const Region screenRegion(hw.bounds()); 708 if (visibleRegions) { 709 Region opaqueRegion; 710 computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion); 711 712 /* 713 * rebuild the visible layer list 714 */ 715 mVisibleLayersSortedByZ.clear(); 716 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 717 size_t count = currentLayers.size(); 718 mVisibleLayersSortedByZ.setCapacity(count); 719 for (size_t i=0 ; i<count ; i++) { 720 if (!currentLayers[i]->visibleRegionScreen.isEmpty()) 721 mVisibleLayersSortedByZ.add(currentLayers[i]); 722 } 723 724 mWormholeRegion = screenRegion.subtract(opaqueRegion); 725 mVisibleRegionsDirty = false; 726 } 727 728 unlockPageFlip(currentLayers); 729 mDirtyRegion.andSelf(screenRegion); 730} 731 732bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers) 733{ 734 bool recomputeVisibleRegions = false; 735 size_t count = currentLayers.size(); 736 sp<LayerBase> const* layers = currentLayers.array(); 737 for (size_t i=0 ; i<count ; i++) { 738 const sp<LayerBase>& layer(layers[i]); 739 layer->lockPageFlip(recomputeVisibleRegions); 740 } 741 return recomputeVisibleRegions; 742} 743 744void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers) 745{ 746 const GraphicPlane& plane(graphicPlane(0)); 747 const Transform& planeTransform(plane.transform()); 748 size_t count = currentLayers.size(); 749 sp<LayerBase> const* layers = currentLayers.array(); 750 for (size_t i=0 ; i<count ; i++) { 751 const sp<LayerBase>& layer(layers[i]); 752 layer->unlockPageFlip(planeTransform, mDirtyRegion); 753 } 754} 755 756 757void SurfaceFlinger::handleRepaint() 758{ 759 // compute the invalid region 760 mInvalidRegion.orSelf(mDirtyRegion); 761 if (mInvalidRegion.isEmpty()) { 762 // nothing to do 763 return; 764 } 765 766 if (UNLIKELY(mDebugRegion)) { 767 debugFlashRegions(); 768 } 769 770 // set the frame buffer 771 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 772 glMatrixMode(GL_MODELVIEW); 773 glLoadIdentity(); 774 775 uint32_t flags = hw.getFlags(); 776 if ((flags & DisplayHardware::SWAP_RECTANGLE) || 777 (flags & DisplayHardware::BUFFER_PRESERVED)) 778 { 779 // we can redraw only what's dirty, but since SWAP_RECTANGLE only 780 // takes a rectangle, we must make sure to update that whole 781 // rectangle in that case 782 if (flags & DisplayHardware::SWAP_RECTANGLE) { 783 // TODO: we really should be able to pass a region to 784 // SWAP_RECTANGLE so that we don't have to redraw all this. 785 mDirtyRegion.set(mInvalidRegion.bounds()); 786 } else { 787 // in the BUFFER_PRESERVED case, obviously, we can update only 788 // what's needed and nothing more. 789 // NOTE: this is NOT a common case, as preserving the backbuffer 790 // is costly and usually involves copying the whole update back. 791 } 792 } else { 793 if (flags & DisplayHardware::PARTIAL_UPDATES) { 794 // We need to redraw the rectangle that will be updated 795 // (pushed to the framebuffer). 796 // This is needed because PARTIAL_UPDATES only takes one 797 // rectangle instead of a region (see DisplayHardware::flip()) 798 mDirtyRegion.set(mInvalidRegion.bounds()); 799 } else { 800 // we need to redraw everything (the whole screen) 801 mDirtyRegion.set(hw.bounds()); 802 mInvalidRegion = mDirtyRegion; 803 } 804 } 805 806 // compose all surfaces 807 composeSurfaces(mDirtyRegion); 808 809 // clear the dirty regions 810 mDirtyRegion.clear(); 811} 812 813void SurfaceFlinger::composeSurfaces(const Region& dirty) 814{ 815 if (UNLIKELY(!mWormholeRegion.isEmpty())) { 816 // should never happen unless the window manager has a bug 817 // draw something... 818 drawWormhole(); 819 } 820 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 821 const size_t count = layers.size(); 822 for (size_t i=0 ; i<count ; ++i) { 823 const sp<LayerBase>& layer(layers[i]); 824 const Region clip(dirty.intersect(layer->visibleRegionScreen)); 825 if (!clip.isEmpty()) { 826 layer->draw(clip); 827 } 828 } 829} 830 831void SurfaceFlinger::unlockClients() 832{ 833 const LayerVector& drawingLayers(mDrawingState.layersSortedByZ); 834 const size_t count = drawingLayers.size(); 835 sp<LayerBase> const* const layers = drawingLayers.array(); 836 for (size_t i=0 ; i<count ; ++i) { 837 const sp<LayerBase>& layer = layers[i]; 838 layer->finishPageFlip(); 839 } 840} 841 842void SurfaceFlinger::debugFlashRegions() 843{ 844 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 845 const uint32_t flags = hw.getFlags(); 846 847 if (!((flags & DisplayHardware::SWAP_RECTANGLE) || 848 (flags & DisplayHardware::BUFFER_PRESERVED))) { 849 const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ? 850 mDirtyRegion.bounds() : hw.bounds()); 851 composeSurfaces(repaint); 852 } 853 854 TextureManager::deactivateTextures(); 855 856 glDisable(GL_BLEND); 857 glDisable(GL_DITHER); 858 glDisable(GL_SCISSOR_TEST); 859 860 static int toggle = 0; 861 toggle = 1 - toggle; 862 if (toggle) { 863 glColor4f(1, 0, 1, 1); 864 } else { 865 glColor4f(1, 1, 0, 1); 866 } 867 868 Region::const_iterator it = mDirtyRegion.begin(); 869 Region::const_iterator const end = mDirtyRegion.end(); 870 while (it != end) { 871 const Rect& r = *it++; 872 GLfloat vertices[][2] = { 873 { r.left, r.top }, 874 { r.left, r.bottom }, 875 { r.right, r.bottom }, 876 { r.right, r.top } 877 }; 878 glVertexPointer(2, GL_FLOAT, 0, vertices); 879 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 880 } 881 882 if (mInvalidRegion.isEmpty()) { 883 mDirtyRegion.dump("mDirtyRegion"); 884 mInvalidRegion.dump("mInvalidRegion"); 885 } 886 hw.flip(mInvalidRegion); 887 888 if (mDebugRegion > 1) 889 usleep(mDebugRegion * 1000); 890 891 glEnable(GL_SCISSOR_TEST); 892 //mDirtyRegion.dump("mDirtyRegion"); 893} 894 895void SurfaceFlinger::drawWormhole() const 896{ 897 const Region region(mWormholeRegion.intersect(mDirtyRegion)); 898 if (region.isEmpty()) 899 return; 900 901 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 902 const int32_t width = hw.getWidth(); 903 const int32_t height = hw.getHeight(); 904 905 glDisable(GL_BLEND); 906 glDisable(GL_DITHER); 907 908 if (LIKELY(!mDebugBackground)) { 909 glClearColor(0,0,0,0); 910 Region::const_iterator it = region.begin(); 911 Region::const_iterator const end = region.end(); 912 while (it != end) { 913 const Rect& r = *it++; 914 const GLint sy = height - (r.top + r.height()); 915 glScissor(r.left, sy, r.width(), r.height()); 916 glClear(GL_COLOR_BUFFER_BIT); 917 } 918 } else { 919 const GLshort vertices[][2] = { { 0, 0 }, { width, 0 }, 920 { width, height }, { 0, height } }; 921 const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } }; 922 glVertexPointer(2, GL_SHORT, 0, vertices); 923 glTexCoordPointer(2, GL_SHORT, 0, tcoords); 924 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 925#if defined(GL_OES_EGL_image_external) 926 if (GLExtensions::getInstance().haveTextureExternal()) { 927 glDisable(GL_TEXTURE_EXTERNAL_OES); 928 } 929#endif 930 glEnable(GL_TEXTURE_2D); 931 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 932 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 933 glMatrixMode(GL_TEXTURE); 934 glLoadIdentity(); 935 glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1); 936 Region::const_iterator it = region.begin(); 937 Region::const_iterator const end = region.end(); 938 while (it != end) { 939 const Rect& r = *it++; 940 const GLint sy = height - (r.top + r.height()); 941 glScissor(r.left, sy, r.width(), r.height()); 942 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 943 } 944 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 945 } 946} 947 948void SurfaceFlinger::debugShowFPS() const 949{ 950 static int mFrameCount; 951 static int mLastFrameCount = 0; 952 static nsecs_t mLastFpsTime = 0; 953 static float mFps = 0; 954 mFrameCount++; 955 nsecs_t now = systemTime(); 956 nsecs_t diff = now - mLastFpsTime; 957 if (diff > ms2ns(250)) { 958 mFps = ((mFrameCount - mLastFrameCount) * float(s2ns(1))) / diff; 959 mLastFpsTime = now; 960 mLastFrameCount = mFrameCount; 961 } 962 // XXX: mFPS has the value we want 963 } 964 965status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer) 966{ 967 Mutex::Autolock _l(mStateLock); 968 addLayer_l(layer); 969 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 970 return NO_ERROR; 971} 972 973status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer) 974{ 975 ssize_t i = mCurrentState.layersSortedByZ.add(layer); 976 return (i < 0) ? status_t(i) : status_t(NO_ERROR); 977} 978 979ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client, 980 const sp<LayerBaseClient>& lbc) 981{ 982 Mutex::Autolock _l(mStateLock); 983 984 // attach this layer to the client 985 ssize_t name = client->attachLayer(lbc); 986 987 // add this layer to the current state list 988 addLayer_l(lbc); 989 990 return name; 991} 992 993status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer) 994{ 995 Mutex::Autolock _l(mStateLock); 996 status_t err = purgatorizeLayer_l(layer); 997 if (err == NO_ERROR) 998 setTransactionFlags(eTransactionNeeded); 999 return err; 1000} 1001 1002status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase) 1003{ 1004 sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient()); 1005 if (lbc != 0) { 1006 mLayerMap.removeItem( lbc->getSurface()->asBinder() ); 1007 } 1008 ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase); 1009 if (index >= 0) { 1010 mLayersRemoved = true; 1011 return NO_ERROR; 1012 } 1013 return status_t(index); 1014} 1015 1016status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase) 1017{ 1018 // remove the layer from the main list (through a transaction). 1019 ssize_t err = removeLayer_l(layerBase); 1020 1021 layerBase->onRemoved(); 1022 1023 // it's possible that we don't find a layer, because it might 1024 // have been destroyed already -- this is not technically an error 1025 // from the user because there is a race between Client::destroySurface(), 1026 // ~Client() and ~ISurface(). 1027 return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err; 1028} 1029 1030status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer) 1031{ 1032 layer->forceVisibilityTransaction(); 1033 setTransactionFlags(eTraversalNeeded); 1034 return NO_ERROR; 1035} 1036 1037uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags) 1038{ 1039 return android_atomic_and(~flags, &mTransactionFlags) & flags; 1040} 1041 1042uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags) 1043{ 1044 uint32_t old = android_atomic_or(flags, &mTransactionFlags); 1045 if ((old & flags)==0) { // wake the server up 1046 signalEvent(); 1047 } 1048 return old; 1049} 1050 1051void SurfaceFlinger::openGlobalTransaction() 1052{ 1053 android_atomic_inc(&mTransactionCount); 1054} 1055 1056void SurfaceFlinger::closeGlobalTransaction() 1057{ 1058 if (android_atomic_dec(&mTransactionCount) == 1) { 1059 signalEvent(); 1060 1061 // if there is a transaction with a resize, wait for it to 1062 // take effect before returning. 1063 Mutex::Autolock _l(mStateLock); 1064 while (mResizeTransationPending) { 1065 status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5)); 1066 if (CC_UNLIKELY(err != NO_ERROR)) { 1067 // just in case something goes wrong in SF, return to the 1068 // called after a few seconds. 1069 LOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!"); 1070 mResizeTransationPending = false; 1071 break; 1072 } 1073 } 1074 } 1075} 1076 1077status_t SurfaceFlinger::freezeDisplay(DisplayID dpy, uint32_t flags) 1078{ 1079 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1080 return BAD_VALUE; 1081 1082 Mutex::Autolock _l(mStateLock); 1083 mCurrentState.freezeDisplay = 1; 1084 setTransactionFlags(eTransactionNeeded); 1085 1086 // flags is intended to communicate some sort of animation behavior 1087 // (for instance fading) 1088 return NO_ERROR; 1089} 1090 1091status_t SurfaceFlinger::unfreezeDisplay(DisplayID dpy, uint32_t flags) 1092{ 1093 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1094 return BAD_VALUE; 1095 1096 Mutex::Autolock _l(mStateLock); 1097 mCurrentState.freezeDisplay = 0; 1098 setTransactionFlags(eTransactionNeeded); 1099 1100 // flags is intended to communicate some sort of animation behavior 1101 // (for instance fading) 1102 return NO_ERROR; 1103} 1104 1105int SurfaceFlinger::setOrientation(DisplayID dpy, 1106 int orientation, uint32_t flags) 1107{ 1108 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1109 return BAD_VALUE; 1110 1111 Mutex::Autolock _l(mStateLock); 1112 if (mCurrentState.orientation != orientation) { 1113 if (uint32_t(orientation)<=eOrientation270 || orientation==42) { 1114 mCurrentState.orientationType = flags; 1115 mCurrentState.orientation = orientation; 1116 setTransactionFlags(eTransactionNeeded); 1117 mTransactionCV.wait(mStateLock); 1118 } else { 1119 orientation = BAD_VALUE; 1120 } 1121 } 1122 return orientation; 1123} 1124 1125sp<ISurface> SurfaceFlinger::createSurface(const sp<Client>& client, int pid, 1126 const String8& name, ISurfaceComposerClient::surface_data_t* params, 1127 DisplayID d, uint32_t w, uint32_t h, PixelFormat format, 1128 uint32_t flags) 1129{ 1130 sp<LayerBaseClient> layer; 1131 sp<LayerBaseClient::Surface> surfaceHandle; 1132 1133 if (int32_t(w|h) < 0) { 1134 LOGE("createSurface() failed, w or h is negative (w=%d, h=%d)", 1135 int(w), int(h)); 1136 return surfaceHandle; 1137 } 1138 1139 //LOGD("createSurface for pid %d (%d x %d)", pid, w, h); 1140 sp<Layer> normalLayer; 1141 switch (flags & eFXSurfaceMask) { 1142 case eFXSurfaceNormal: 1143 if (UNLIKELY(flags & ePushBuffers)) { 1144 layer = createPushBuffersSurface(client, d, w, h, flags); 1145 } else { 1146 normalLayer = createNormalSurface(client, d, w, h, flags, format); 1147 layer = normalLayer; 1148 } 1149 break; 1150 case eFXSurfaceBlur: 1151 layer = createBlurSurface(client, d, w, h, flags); 1152 break; 1153 case eFXSurfaceDim: 1154 layer = createDimSurface(client, d, w, h, flags); 1155 break; 1156 } 1157 1158 if (layer != 0) { 1159 layer->initStates(w, h, flags); 1160 layer->setName(name); 1161 ssize_t token = addClientLayer(client, layer); 1162 1163 surfaceHandle = layer->getSurface(); 1164 if (surfaceHandle != 0) { 1165 params->token = token; 1166 params->identity = surfaceHandle->getIdentity(); 1167 params->width = w; 1168 params->height = h; 1169 params->format = format; 1170 if (normalLayer != 0) { 1171 Mutex::Autolock _l(mStateLock); 1172 mLayerMap.add(surfaceHandle->asBinder(), normalLayer); 1173 } 1174 } 1175 1176 setTransactionFlags(eTransactionNeeded); 1177 } 1178 1179 return surfaceHandle; 1180} 1181 1182sp<Layer> SurfaceFlinger::createNormalSurface( 1183 const sp<Client>& client, DisplayID display, 1184 uint32_t w, uint32_t h, uint32_t flags, 1185 PixelFormat& format) 1186{ 1187 // initialize the surfaces 1188 switch (format) { // TODO: take h/w into account 1189 case PIXEL_FORMAT_TRANSPARENT: 1190 case PIXEL_FORMAT_TRANSLUCENT: 1191 format = PIXEL_FORMAT_RGBA_8888; 1192 break; 1193 case PIXEL_FORMAT_OPAQUE: 1194#ifdef NO_RGBX_8888 1195 format = PIXEL_FORMAT_RGB_565; 1196#else 1197 format = PIXEL_FORMAT_RGBX_8888; 1198#endif 1199 break; 1200 } 1201 1202#ifdef NO_RGBX_8888 1203 if (format == PIXEL_FORMAT_RGBX_8888) 1204 format = PIXEL_FORMAT_RGBA_8888; 1205#endif 1206 1207 sp<Layer> layer = new Layer(this, display, client); 1208 status_t err = layer->setBuffers(w, h, format, flags); 1209 if (LIKELY(err != NO_ERROR)) { 1210 LOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err)); 1211 layer.clear(); 1212 } 1213 return layer; 1214} 1215 1216sp<LayerBlur> SurfaceFlinger::createBlurSurface( 1217 const sp<Client>& client, DisplayID display, 1218 uint32_t w, uint32_t h, uint32_t flags) 1219{ 1220 sp<LayerBlur> layer = new LayerBlur(this, display, client); 1221 layer->initStates(w, h, flags); 1222 return layer; 1223} 1224 1225sp<LayerDim> SurfaceFlinger::createDimSurface( 1226 const sp<Client>& client, DisplayID display, 1227 uint32_t w, uint32_t h, uint32_t flags) 1228{ 1229 sp<LayerDim> layer = new LayerDim(this, display, client); 1230 layer->initStates(w, h, flags); 1231 return layer; 1232} 1233 1234sp<LayerBuffer> SurfaceFlinger::createPushBuffersSurface( 1235 const sp<Client>& client, DisplayID display, 1236 uint32_t w, uint32_t h, uint32_t flags) 1237{ 1238 sp<LayerBuffer> layer = new LayerBuffer(this, display, client); 1239 layer->initStates(w, h, flags); 1240 return layer; 1241} 1242 1243status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid) 1244{ 1245 /* 1246 * called by the window manager, when a surface should be marked for 1247 * destruction. 1248 * 1249 * The surface is removed from the current and drawing lists, but placed 1250 * in the purgatory queue, so it's not destroyed right-away (we need 1251 * to wait for all client's references to go away first). 1252 */ 1253 1254 status_t err = NAME_NOT_FOUND; 1255 Mutex::Autolock _l(mStateLock); 1256 sp<LayerBaseClient> layer = client->getLayerUser(sid); 1257 if (layer != 0) { 1258 err = purgatorizeLayer_l(layer); 1259 if (err == NO_ERROR) { 1260 setTransactionFlags(eTransactionNeeded); 1261 } 1262 } 1263 return err; 1264} 1265 1266status_t SurfaceFlinger::destroySurface(const sp<LayerBaseClient>& layer) 1267{ 1268 // called by ~ISurface() when all references are gone 1269 1270 class MessageDestroySurface : public MessageBase { 1271 SurfaceFlinger* flinger; 1272 sp<LayerBaseClient> layer; 1273 public: 1274 MessageDestroySurface( 1275 SurfaceFlinger* flinger, const sp<LayerBaseClient>& layer) 1276 : flinger(flinger), layer(layer) { } 1277 virtual bool handler() { 1278 sp<LayerBaseClient> l(layer); 1279 layer.clear(); // clear it outside of the lock; 1280 Mutex::Autolock _l(flinger->mStateLock); 1281 /* 1282 * remove the layer from the current list -- chances are that it's 1283 * not in the list anyway, because it should have been removed 1284 * already upon request of the client (eg: window manager). 1285 * However, a buggy client could have not done that. 1286 * Since we know we don't have any more clients, we don't need 1287 * to use the purgatory. 1288 */ 1289 status_t err = flinger->removeLayer_l(l); 1290 LOGE_IF(err<0 && err != NAME_NOT_FOUND, 1291 "error removing layer=%p (%s)", l.get(), strerror(-err)); 1292 return true; 1293 } 1294 }; 1295 1296 postMessageAsync( new MessageDestroySurface(this, layer) ); 1297 return NO_ERROR; 1298} 1299 1300status_t SurfaceFlinger::setClientState( 1301 const sp<Client>& client, 1302 int32_t count, 1303 const layer_state_t* states) 1304{ 1305 Mutex::Autolock _l(mStateLock); 1306 uint32_t flags = 0; 1307 for (int i=0 ; i<count ; i++) { 1308 const layer_state_t& s(states[i]); 1309 sp<LayerBaseClient> layer(client->getLayerUser(s.surface)); 1310 if (layer != 0) { 1311 const uint32_t what = s.what; 1312 if (what & ePositionChanged) { 1313 if (layer->setPosition(s.x, s.y)) 1314 flags |= eTraversalNeeded; 1315 } 1316 if (what & eLayerChanged) { 1317 ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer); 1318 if (layer->setLayer(s.z)) { 1319 mCurrentState.layersSortedByZ.removeAt(idx); 1320 mCurrentState.layersSortedByZ.add(layer); 1321 // we need traversal (state changed) 1322 // AND transaction (list changed) 1323 flags |= eTransactionNeeded|eTraversalNeeded; 1324 } 1325 } 1326 if (what & eSizeChanged) { 1327 if (layer->setSize(s.w, s.h)) { 1328 flags |= eTraversalNeeded; 1329 mResizeTransationPending = true; 1330 } 1331 } 1332 if (what & eAlphaChanged) { 1333 if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f))) 1334 flags |= eTraversalNeeded; 1335 } 1336 if (what & eMatrixChanged) { 1337 if (layer->setMatrix(s.matrix)) 1338 flags |= eTraversalNeeded; 1339 } 1340 if (what & eTransparentRegionChanged) { 1341 if (layer->setTransparentRegionHint(s.transparentRegion)) 1342 flags |= eTraversalNeeded; 1343 } 1344 if (what & eVisibilityChanged) { 1345 if (layer->setFlags(s.flags, s.mask)) 1346 flags |= eTraversalNeeded; 1347 } 1348 } 1349 } 1350 if (flags) { 1351 setTransactionFlags(flags); 1352 } 1353 return NO_ERROR; 1354} 1355 1356void SurfaceFlinger::screenReleased(int dpy) 1357{ 1358 // this may be called by a signal handler, we can't do too much in here 1359 android_atomic_or(eConsoleReleased, &mConsoleSignals); 1360 signalEvent(); 1361} 1362 1363void SurfaceFlinger::screenAcquired(int dpy) 1364{ 1365 // this may be called by a signal handler, we can't do too much in here 1366 android_atomic_or(eConsoleAcquired, &mConsoleSignals); 1367 signalEvent(); 1368} 1369 1370status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args) 1371{ 1372 const size_t SIZE = 1024; 1373 char buffer[SIZE]; 1374 String8 result; 1375 if (!mDump.checkCalling()) { 1376 snprintf(buffer, SIZE, "Permission Denial: " 1377 "can't dump SurfaceFlinger from pid=%d, uid=%d\n", 1378 IPCThreadState::self()->getCallingPid(), 1379 IPCThreadState::self()->getCallingUid()); 1380 result.append(buffer); 1381 } else { 1382 1383 // figure out if we're stuck somewhere 1384 const nsecs_t now = systemTime(); 1385 const nsecs_t inSwapBuffers(mDebugInSwapBuffers); 1386 const nsecs_t inTransaction(mDebugInTransaction); 1387 nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0; 1388 nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0; 1389 1390 // Try to get the main lock, but don't insist if we can't 1391 // (this would indicate SF is stuck, but we want to be able to 1392 // print something in dumpsys). 1393 int retry = 3; 1394 while (mStateLock.tryLock()<0 && --retry>=0) { 1395 usleep(1000000); 1396 } 1397 const bool locked(retry >= 0); 1398 if (!locked) { 1399 snprintf(buffer, SIZE, 1400 "SurfaceFlinger appears to be unresponsive, " 1401 "dumping anyways (no locks held)\n"); 1402 result.append(buffer); 1403 } 1404 1405 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1406 const size_t count = currentLayers.size(); 1407 for (size_t i=0 ; i<count ; i++) { 1408 const sp<LayerBase>& layer(currentLayers[i]); 1409 layer->dump(result, buffer, SIZE); 1410 const Layer::State& s(layer->drawingState()); 1411 s.transparentRegion.dump(result, "transparentRegion"); 1412 layer->transparentRegionScreen.dump(result, "transparentRegionScreen"); 1413 layer->visibleRegionScreen.dump(result, "visibleRegionScreen"); 1414 } 1415 1416 mWormholeRegion.dump(result, "WormholeRegion"); 1417 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1418 snprintf(buffer, SIZE, 1419 " display frozen: %s, freezeCount=%d, orientation=%d, canDraw=%d\n", 1420 mFreezeDisplay?"yes":"no", mFreezeCount, 1421 mCurrentState.orientation, hw.canDraw()); 1422 result.append(buffer); 1423 snprintf(buffer, SIZE, 1424 " last eglSwapBuffers() time: %f us\n" 1425 " last transaction time : %f us\n", 1426 mLastSwapBufferTime/1000.0, mLastTransactionTime/1000.0); 1427 result.append(buffer); 1428 1429 if (inSwapBuffersDuration || !locked) { 1430 snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n", 1431 inSwapBuffersDuration/1000.0); 1432 result.append(buffer); 1433 } 1434 1435 if (inTransactionDuration || !locked) { 1436 snprintf(buffer, SIZE, " transaction time: %f us\n", 1437 inTransactionDuration/1000.0); 1438 result.append(buffer); 1439 } 1440 1441 const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get()); 1442 alloc.dump(result); 1443 1444 if (locked) { 1445 mStateLock.unlock(); 1446 } 1447 } 1448 write(fd, result.string(), result.size()); 1449 return NO_ERROR; 1450} 1451 1452status_t SurfaceFlinger::onTransact( 1453 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1454{ 1455 switch (code) { 1456 case CREATE_CONNECTION: 1457 case OPEN_GLOBAL_TRANSACTION: 1458 case CLOSE_GLOBAL_TRANSACTION: 1459 case SET_ORIENTATION: 1460 case FREEZE_DISPLAY: 1461 case UNFREEZE_DISPLAY: 1462 case BOOT_FINISHED: 1463 case TURN_ELECTRON_BEAM_OFF: 1464 case TURN_ELECTRON_BEAM_ON: 1465 { 1466 // codes that require permission check 1467 IPCThreadState* ipc = IPCThreadState::self(); 1468 const int pid = ipc->getCallingPid(); 1469 const int uid = ipc->getCallingUid(); 1470 if ((uid != AID_GRAPHICS) && !mAccessSurfaceFlinger.check(pid, uid)) { 1471 LOGE("Permission Denial: " 1472 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1473 return PERMISSION_DENIED; 1474 } 1475 break; 1476 } 1477 case CAPTURE_SCREEN: 1478 { 1479 // codes that require permission check 1480 IPCThreadState* ipc = IPCThreadState::self(); 1481 const int pid = ipc->getCallingPid(); 1482 const int uid = ipc->getCallingUid(); 1483 if ((uid != AID_GRAPHICS) && !mReadFramebuffer.check(pid, uid)) { 1484 LOGE("Permission Denial: " 1485 "can't read framebuffer pid=%d, uid=%d", pid, uid); 1486 return PERMISSION_DENIED; 1487 } 1488 break; 1489 } 1490 } 1491 1492 status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags); 1493 if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) { 1494 CHECK_INTERFACE(ISurfaceComposer, data, reply); 1495 if (UNLIKELY(!mHardwareTest.checkCalling())) { 1496 IPCThreadState* ipc = IPCThreadState::self(); 1497 const int pid = ipc->getCallingPid(); 1498 const int uid = ipc->getCallingUid(); 1499 LOGE("Permission Denial: " 1500 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1501 return PERMISSION_DENIED; 1502 } 1503 int n; 1504 switch (code) { 1505 case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE 1506 case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE 1507 return NO_ERROR; 1508 case 1002: // SHOW_UPDATES 1509 n = data.readInt32(); 1510 mDebugRegion = n ? n : (mDebugRegion ? 0 : 1); 1511 return NO_ERROR; 1512 case 1003: // SHOW_BACKGROUND 1513 n = data.readInt32(); 1514 mDebugBackground = n ? 1 : 0; 1515 return NO_ERROR; 1516 case 1004:{ // repaint everything 1517 Mutex::Autolock _l(mStateLock); 1518 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1519 mDirtyRegion.set(hw.bounds()); // careful that's not thread-safe 1520 signalEvent(); 1521 return NO_ERROR; 1522 } 1523 case 1005:{ // force transaction 1524 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1525 return NO_ERROR; 1526 } 1527 case 1006:{ // enable/disable GraphicLog 1528 int enabled = data.readInt32(); 1529 GraphicLog::getInstance().setEnabled(enabled); 1530 return NO_ERROR; 1531 } 1532 case 1007: // set mFreezeCount 1533 mFreezeCount = data.readInt32(); 1534 mFreezeDisplayTime = 0; 1535 return NO_ERROR; 1536 case 1010: // interrogate. 1537 reply->writeInt32(0); 1538 reply->writeInt32(0); 1539 reply->writeInt32(mDebugRegion); 1540 reply->writeInt32(mDebugBackground); 1541 return NO_ERROR; 1542 case 1013: { 1543 Mutex::Autolock _l(mStateLock); 1544 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1545 reply->writeInt32(hw.getPageFlipCount()); 1546 } 1547 return NO_ERROR; 1548 } 1549 } 1550 return err; 1551} 1552 1553// --------------------------------------------------------------------------- 1554 1555status_t SurfaceFlinger::renderScreenToTextureLocked(DisplayID dpy, 1556 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1557{ 1558 if (!GLExtensions::getInstance().haveFramebufferObject()) 1559 return INVALID_OPERATION; 1560 1561 // get screen geometry 1562 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 1563 const uint32_t hw_w = hw.getWidth(); 1564 const uint32_t hw_h = hw.getHeight(); 1565 GLfloat u = 1; 1566 GLfloat v = 1; 1567 1568 // make sure to clear all GL error flags 1569 while ( glGetError() != GL_NO_ERROR ) ; 1570 1571 // create a FBO 1572 GLuint name, tname; 1573 glGenTextures(1, &tname); 1574 glBindTexture(GL_TEXTURE_2D, tname); 1575 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1576 hw_w, hw_h, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1577 if (glGetError() != GL_NO_ERROR) { 1578 while ( glGetError() != GL_NO_ERROR ) ; 1579 GLint tw = (2 << (31 - clz(hw_w))); 1580 GLint th = (2 << (31 - clz(hw_h))); 1581 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1582 tw, th, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1583 u = GLfloat(hw_w) / tw; 1584 v = GLfloat(hw_h) / th; 1585 } 1586 glGenFramebuffersOES(1, &name); 1587 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 1588 glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, 1589 GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0); 1590 1591 // redraw the screen entirely... 1592 glClearColor(0,0,0,1); 1593 glClear(GL_COLOR_BUFFER_BIT); 1594 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1595 const size_t count = layers.size(); 1596 for (size_t i=0 ; i<count ; ++i) { 1597 const sp<LayerBase>& layer(layers[i]); 1598 layer->drawForSreenShot(); 1599 } 1600 1601 // back to main framebuffer 1602 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1603 glDisable(GL_SCISSOR_TEST); 1604 glDeleteFramebuffersOES(1, &name); 1605 1606 *textureName = tname; 1607 *uOut = u; 1608 *vOut = v; 1609 return NO_ERROR; 1610} 1611 1612// --------------------------------------------------------------------------- 1613 1614status_t SurfaceFlinger::electronBeamOffAnimationImplLocked() 1615{ 1616 status_t result = PERMISSION_DENIED; 1617 1618 if (!GLExtensions::getInstance().haveFramebufferObject()) 1619 return INVALID_OPERATION; 1620 1621 // get screen geometry 1622 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1623 const uint32_t hw_w = hw.getWidth(); 1624 const uint32_t hw_h = hw.getHeight(); 1625 const Region screenBounds(hw.bounds()); 1626 1627 GLfloat u, v; 1628 GLuint tname; 1629 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1630 if (result != NO_ERROR) { 1631 return result; 1632 } 1633 1634 GLfloat vtx[8]; 1635 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1636 glEnable(GL_TEXTURE_2D); 1637 glBindTexture(GL_TEXTURE_2D, tname); 1638 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1639 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1640 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1641 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1642 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1643 glVertexPointer(2, GL_FLOAT, 0, vtx); 1644 1645 class s_curve_interpolator { 1646 const float nbFrames, s, v; 1647 public: 1648 s_curve_interpolator(int nbFrames, float s) 1649 : nbFrames(1.0f / (nbFrames-1)), s(s), 1650 v(1.0f + expf(-s + 0.5f*s)) { 1651 } 1652 float operator()(int f) { 1653 const float x = f * nbFrames; 1654 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1655 } 1656 }; 1657 1658 class v_stretch { 1659 const GLfloat hw_w, hw_h; 1660 public: 1661 v_stretch(uint32_t hw_w, uint32_t hw_h) 1662 : hw_w(hw_w), hw_h(hw_h) { 1663 } 1664 void operator()(GLfloat* vtx, float v) { 1665 const GLfloat w = hw_w + (hw_w * v); 1666 const GLfloat h = hw_h - (hw_h * v); 1667 const GLfloat x = (hw_w - w) * 0.5f; 1668 const GLfloat y = (hw_h - h) * 0.5f; 1669 vtx[0] = x; vtx[1] = y; 1670 vtx[2] = x; vtx[3] = y + h; 1671 vtx[4] = x + w; vtx[5] = y + h; 1672 vtx[6] = x + w; vtx[7] = y; 1673 } 1674 }; 1675 1676 class h_stretch { 1677 const GLfloat hw_w, hw_h; 1678 public: 1679 h_stretch(uint32_t hw_w, uint32_t hw_h) 1680 : hw_w(hw_w), hw_h(hw_h) { 1681 } 1682 void operator()(GLfloat* vtx, float v) { 1683 const GLfloat w = hw_w - (hw_w * v); 1684 const GLfloat h = 1.0f; 1685 const GLfloat x = (hw_w - w) * 0.5f; 1686 const GLfloat y = (hw_h - h) * 0.5f; 1687 vtx[0] = x; vtx[1] = y; 1688 vtx[2] = x; vtx[3] = y + h; 1689 vtx[4] = x + w; vtx[5] = y + h; 1690 vtx[6] = x + w; vtx[7] = y; 1691 } 1692 }; 1693 1694 // the full animation is 24 frames 1695 const int nbFrames = 12; 1696 s_curve_interpolator itr(nbFrames, 7.5f); 1697 s_curve_interpolator itg(nbFrames, 8.0f); 1698 s_curve_interpolator itb(nbFrames, 8.5f); 1699 1700 v_stretch vverts(hw_w, hw_h); 1701 glEnable(GL_BLEND); 1702 glBlendFunc(GL_ONE, GL_ONE); 1703 for (int i=0 ; i<nbFrames ; i++) { 1704 float x, y, w, h; 1705 const float vr = itr(i); 1706 const float vg = itg(i); 1707 const float vb = itb(i); 1708 1709 // clear screen 1710 glColorMask(1,1,1,1); 1711 glClear(GL_COLOR_BUFFER_BIT); 1712 glEnable(GL_TEXTURE_2D); 1713 1714 // draw the red plane 1715 vverts(vtx, vr); 1716 glColorMask(1,0,0,1); 1717 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1718 1719 // draw the green plane 1720 vverts(vtx, vg); 1721 glColorMask(0,1,0,1); 1722 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1723 1724 // draw the blue plane 1725 vverts(vtx, vb); 1726 glColorMask(0,0,1,1); 1727 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1728 1729 // draw the white highlight (we use the last vertices) 1730 glDisable(GL_TEXTURE_2D); 1731 glColorMask(1,1,1,1); 1732 glColor4f(vg, vg, vg, 1); 1733 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1734 hw.flip(screenBounds); 1735 } 1736 1737 h_stretch hverts(hw_w, hw_h); 1738 glDisable(GL_BLEND); 1739 glDisable(GL_TEXTURE_2D); 1740 glColorMask(1,1,1,1); 1741 for (int i=0 ; i<nbFrames ; i++) { 1742 const float v = itg(i); 1743 hverts(vtx, v); 1744 glClear(GL_COLOR_BUFFER_BIT); 1745 glColor4f(1-v, 1-v, 1-v, 1); 1746 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1747 hw.flip(screenBounds); 1748 } 1749 1750 glColorMask(1,1,1,1); 1751 glEnable(GL_SCISSOR_TEST); 1752 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1753 glDeleteTextures(1, &tname); 1754 return NO_ERROR; 1755} 1756 1757status_t SurfaceFlinger::electronBeamOnAnimationImplLocked() 1758{ 1759 status_t result = PERMISSION_DENIED; 1760 1761 if (!GLExtensions::getInstance().haveFramebufferObject()) 1762 return INVALID_OPERATION; 1763 1764 1765 // get screen geometry 1766 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1767 const uint32_t hw_w = hw.getWidth(); 1768 const uint32_t hw_h = hw.getHeight(); 1769 const Region screenBounds(hw.bounds()); 1770 1771 GLfloat u, v; 1772 GLuint tname; 1773 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1774 if (result != NO_ERROR) { 1775 return result; 1776 } 1777 1778 // back to main framebuffer 1779 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1780 glDisable(GL_SCISSOR_TEST); 1781 1782 GLfloat vtx[8]; 1783 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1784 glEnable(GL_TEXTURE_2D); 1785 glBindTexture(GL_TEXTURE_2D, tname); 1786 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 1787 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1788 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1789 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1790 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1791 glVertexPointer(2, GL_FLOAT, 0, vtx); 1792 1793 class s_curve_interpolator { 1794 const float nbFrames, s, v; 1795 public: 1796 s_curve_interpolator(int nbFrames, float s) 1797 : nbFrames(1.0f / (nbFrames-1)), s(s), 1798 v(1.0f + expf(-s + 0.5f*s)) { 1799 } 1800 float operator()(int f) { 1801 const float x = f * nbFrames; 1802 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1803 } 1804 }; 1805 1806 class v_stretch { 1807 const GLfloat hw_w, hw_h; 1808 public: 1809 v_stretch(uint32_t hw_w, uint32_t hw_h) 1810 : hw_w(hw_w), hw_h(hw_h) { 1811 } 1812 void operator()(GLfloat* vtx, float v) { 1813 const GLfloat w = hw_w + (hw_w * v); 1814 const GLfloat h = hw_h - (hw_h * v); 1815 const GLfloat x = (hw_w - w) * 0.5f; 1816 const GLfloat y = (hw_h - h) * 0.5f; 1817 vtx[0] = x; vtx[1] = y; 1818 vtx[2] = x; vtx[3] = y + h; 1819 vtx[4] = x + w; vtx[5] = y + h; 1820 vtx[6] = x + w; vtx[7] = y; 1821 } 1822 }; 1823 1824 class h_stretch { 1825 const GLfloat hw_w, hw_h; 1826 public: 1827 h_stretch(uint32_t hw_w, uint32_t hw_h) 1828 : hw_w(hw_w), hw_h(hw_h) { 1829 } 1830 void operator()(GLfloat* vtx, float v) { 1831 const GLfloat w = hw_w - (hw_w * v); 1832 const GLfloat h = 1.0f; 1833 const GLfloat x = (hw_w - w) * 0.5f; 1834 const GLfloat y = (hw_h - h) * 0.5f; 1835 vtx[0] = x; vtx[1] = y; 1836 vtx[2] = x; vtx[3] = y + h; 1837 vtx[4] = x + w; vtx[5] = y + h; 1838 vtx[6] = x + w; vtx[7] = y; 1839 } 1840 }; 1841 1842 // the full animation is 24 frames 1843 const int nbFrames = 12; 1844 s_curve_interpolator itr(nbFrames, 7.5f); 1845 s_curve_interpolator itg(nbFrames, 8.0f); 1846 s_curve_interpolator itb(nbFrames, 8.5f); 1847 1848 h_stretch hverts(hw_w, hw_h); 1849 glDisable(GL_BLEND); 1850 glDisable(GL_TEXTURE_2D); 1851 glColorMask(1,1,1,1); 1852 for (int i=nbFrames-1 ; i>=0 ; i--) { 1853 const float v = itg(i); 1854 hverts(vtx, v); 1855 glClear(GL_COLOR_BUFFER_BIT); 1856 glColor4f(1-v, 1-v, 1-v, 1); 1857 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1858 hw.flip(screenBounds); 1859 } 1860 1861 v_stretch vverts(hw_w, hw_h); 1862 glEnable(GL_BLEND); 1863 glBlendFunc(GL_ONE, GL_ONE); 1864 for (int i=nbFrames-1 ; i>=0 ; i--) { 1865 float x, y, w, h; 1866 const float vr = itr(i); 1867 const float vg = itg(i); 1868 const float vb = itb(i); 1869 1870 // clear screen 1871 glColorMask(1,1,1,1); 1872 glClear(GL_COLOR_BUFFER_BIT); 1873 glEnable(GL_TEXTURE_2D); 1874 1875 // draw the red plane 1876 vverts(vtx, vr); 1877 glColorMask(1,0,0,1); 1878 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1879 1880 // draw the green plane 1881 vverts(vtx, vg); 1882 glColorMask(0,1,0,1); 1883 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1884 1885 // draw the blue plane 1886 vverts(vtx, vb); 1887 glColorMask(0,0,1,1); 1888 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1889 1890 hw.flip(screenBounds); 1891 } 1892 1893 glColorMask(1,1,1,1); 1894 glEnable(GL_SCISSOR_TEST); 1895 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1896 glDeleteTextures(1, &tname); 1897 1898 return NO_ERROR; 1899} 1900 1901// --------------------------------------------------------------------------- 1902 1903status_t SurfaceFlinger::turnElectronBeamOffImplLocked(int32_t mode) 1904{ 1905 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 1906 if (!hw.canDraw()) { 1907 // we're already off 1908 return NO_ERROR; 1909 } 1910 if (mode & ISurfaceComposer::eElectronBeamAnimationOff) { 1911 electronBeamOffAnimationImplLocked(); 1912 } 1913 1914 // always clear the whole screen at the end of the animation 1915 glClearColor(0,0,0,1); 1916 glDisable(GL_SCISSOR_TEST); 1917 glClear(GL_COLOR_BUFFER_BIT); 1918 glEnable(GL_SCISSOR_TEST); 1919 hw.flip( Region(hw.bounds()) ); 1920 1921 hw.setCanDraw(false); 1922 return NO_ERROR; 1923} 1924 1925status_t SurfaceFlinger::turnElectronBeamOff(int32_t mode) 1926{ 1927 class MessageTurnElectronBeamOff : public MessageBase { 1928 SurfaceFlinger* flinger; 1929 int32_t mode; 1930 status_t result; 1931 public: 1932 MessageTurnElectronBeamOff(SurfaceFlinger* flinger, int32_t mode) 1933 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 1934 } 1935 status_t getResult() const { 1936 return result; 1937 } 1938 virtual bool handler() { 1939 Mutex::Autolock _l(flinger->mStateLock); 1940 result = flinger->turnElectronBeamOffImplLocked(mode); 1941 return true; 1942 } 1943 }; 1944 1945 sp<MessageBase> msg = new MessageTurnElectronBeamOff(this, mode); 1946 status_t res = postMessageSync(msg); 1947 if (res == NO_ERROR) { 1948 res = static_cast<MessageTurnElectronBeamOff*>( msg.get() )->getResult(); 1949 1950 // work-around: when the power-manager calls us we activate the 1951 // animation. eventually, the "on" animation will be called 1952 // by the power-manager itself 1953 mElectronBeamAnimationMode = mode; 1954 } 1955 return res; 1956} 1957 1958// --------------------------------------------------------------------------- 1959 1960status_t SurfaceFlinger::turnElectronBeamOnImplLocked(int32_t mode) 1961{ 1962 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 1963 if (hw.canDraw()) { 1964 // we're already on 1965 return NO_ERROR; 1966 } 1967 if (mode & ISurfaceComposer::eElectronBeamAnimationOn) { 1968 electronBeamOnAnimationImplLocked(); 1969 } 1970 hw.setCanDraw(true); 1971 1972 // make sure to redraw the whole screen when the animation is done 1973 mDirtyRegion.set(hw.bounds()); 1974 signalEvent(); 1975 1976 return NO_ERROR; 1977} 1978 1979status_t SurfaceFlinger::turnElectronBeamOn(int32_t mode) 1980{ 1981 class MessageTurnElectronBeamOn : public MessageBase { 1982 SurfaceFlinger* flinger; 1983 int32_t mode; 1984 status_t result; 1985 public: 1986 MessageTurnElectronBeamOn(SurfaceFlinger* flinger, int32_t mode) 1987 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 1988 } 1989 status_t getResult() const { 1990 return result; 1991 } 1992 virtual bool handler() { 1993 Mutex::Autolock _l(flinger->mStateLock); 1994 result = flinger->turnElectronBeamOnImplLocked(mode); 1995 return true; 1996 } 1997 }; 1998 1999 postMessageAsync( new MessageTurnElectronBeamOn(this, mode) ); 2000 return NO_ERROR; 2001} 2002 2003// --------------------------------------------------------------------------- 2004 2005status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy, 2006 sp<IMemoryHeap>* heap, 2007 uint32_t* w, uint32_t* h, PixelFormat* f, 2008 uint32_t sw, uint32_t sh) 2009{ 2010 status_t result = PERMISSION_DENIED; 2011 2012 // only one display supported for now 2013 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2014 return BAD_VALUE; 2015 2016 if (!GLExtensions::getInstance().haveFramebufferObject()) 2017 return INVALID_OPERATION; 2018 2019 // get screen geometry 2020 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 2021 const uint32_t hw_w = hw.getWidth(); 2022 const uint32_t hw_h = hw.getHeight(); 2023 2024 if ((sw > hw_w) || (sh > hw_h)) 2025 return BAD_VALUE; 2026 2027 sw = (!sw) ? hw_w : sw; 2028 sh = (!sh) ? hw_h : sh; 2029 const size_t size = sw * sh * 4; 2030 2031 // make sure to clear all GL error flags 2032 while ( glGetError() != GL_NO_ERROR ) ; 2033 2034 // create a FBO 2035 GLuint name, tname; 2036 glGenRenderbuffersOES(1, &tname); 2037 glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname); 2038 glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh); 2039 glGenFramebuffersOES(1, &name); 2040 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 2041 glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, 2042 GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname); 2043 2044 GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES); 2045 if (status == GL_FRAMEBUFFER_COMPLETE_OES) { 2046 2047 // invert everything, b/c glReadPixel() below will invert the FB 2048 glViewport(0, 0, sw, sh); 2049 glMatrixMode(GL_PROJECTION); 2050 glPushMatrix(); 2051 glLoadIdentity(); 2052 glOrthof(0, hw_w, 0, hw_h, 0, 1); 2053 glMatrixMode(GL_MODELVIEW); 2054 2055 // redraw the screen entirely... 2056 glClearColor(0,0,0,1); 2057 glClear(GL_COLOR_BUFFER_BIT); 2058 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 2059 const size_t count = layers.size(); 2060 for (size_t i=0 ; i<count ; ++i) { 2061 const sp<LayerBase>& layer(layers[i]); 2062 layer->drawForSreenShot(); 2063 } 2064 2065 // XXX: this is needed on tegra 2066 glScissor(0, 0, sw, sh); 2067 2068 // check for errors and return screen capture 2069 if (glGetError() != GL_NO_ERROR) { 2070 // error while rendering 2071 result = INVALID_OPERATION; 2072 } else { 2073 // allocate shared memory large enough to hold the 2074 // screen capture 2075 sp<MemoryHeapBase> base( 2076 new MemoryHeapBase(size, 0, "screen-capture") ); 2077 void* const ptr = base->getBase(); 2078 if (ptr) { 2079 // capture the screen with glReadPixels() 2080 glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr); 2081 if (glGetError() == GL_NO_ERROR) { 2082 *heap = base; 2083 *w = sw; 2084 *h = sh; 2085 *f = PIXEL_FORMAT_RGBA_8888; 2086 result = NO_ERROR; 2087 } 2088 } else { 2089 result = NO_MEMORY; 2090 } 2091 } 2092 2093 glEnable(GL_SCISSOR_TEST); 2094 glViewport(0, 0, hw_w, hw_h); 2095 glMatrixMode(GL_PROJECTION); 2096 glPopMatrix(); 2097 glMatrixMode(GL_MODELVIEW); 2098 2099 2100 } else { 2101 result = BAD_VALUE; 2102 } 2103 2104 // release FBO resources 2105 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 2106 glDeleteRenderbuffersOES(1, &tname); 2107 glDeleteFramebuffersOES(1, &name); 2108 return result; 2109} 2110 2111 2112status_t SurfaceFlinger::captureScreen(DisplayID dpy, 2113 sp<IMemoryHeap>* heap, 2114 uint32_t* width, uint32_t* height, PixelFormat* format, 2115 uint32_t sw, uint32_t sh) 2116{ 2117 // only one display supported for now 2118 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2119 return BAD_VALUE; 2120 2121 if (!GLExtensions::getInstance().haveFramebufferObject()) 2122 return INVALID_OPERATION; 2123 2124 class MessageCaptureScreen : public MessageBase { 2125 SurfaceFlinger* flinger; 2126 DisplayID dpy; 2127 sp<IMemoryHeap>* heap; 2128 uint32_t* w; 2129 uint32_t* h; 2130 PixelFormat* f; 2131 uint32_t sw; 2132 uint32_t sh; 2133 status_t result; 2134 public: 2135 MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy, 2136 sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f, 2137 uint32_t sw, uint32_t sh) 2138 : flinger(flinger), dpy(dpy), 2139 heap(heap), w(w), h(h), f(f), sw(sw), sh(sh), result(PERMISSION_DENIED) 2140 { 2141 } 2142 status_t getResult() const { 2143 return result; 2144 } 2145 virtual bool handler() { 2146 Mutex::Autolock _l(flinger->mStateLock); 2147 2148 // if we have secure windows, never allow the screen capture 2149 if (flinger->mSecureFrameBuffer) 2150 return true; 2151 2152 result = flinger->captureScreenImplLocked(dpy, 2153 heap, w, h, f, sw, sh); 2154 2155 return true; 2156 } 2157 }; 2158 2159 sp<MessageBase> msg = new MessageCaptureScreen(this, 2160 dpy, heap, width, height, format, sw, sh); 2161 status_t res = postMessageSync(msg); 2162 if (res == NO_ERROR) { 2163 res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult(); 2164 } 2165 return res; 2166} 2167 2168// --------------------------------------------------------------------------- 2169 2170sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const 2171{ 2172 sp<Layer> result; 2173 Mutex::Autolock _l(mStateLock); 2174 result = mLayerMap.valueFor( sur->asBinder() ).promote(); 2175 return result; 2176} 2177 2178// --------------------------------------------------------------------------- 2179 2180Client::Client(const sp<SurfaceFlinger>& flinger) 2181 : mFlinger(flinger), mNameGenerator(1) 2182{ 2183} 2184 2185Client::~Client() 2186{ 2187 const size_t count = mLayers.size(); 2188 for (size_t i=0 ; i<count ; i++) { 2189 sp<LayerBaseClient> layer(mLayers.valueAt(i).promote()); 2190 if (layer != 0) { 2191 mFlinger->removeLayer(layer); 2192 } 2193 } 2194} 2195 2196status_t Client::initCheck() const { 2197 return NO_ERROR; 2198} 2199 2200ssize_t Client::attachLayer(const sp<LayerBaseClient>& layer) 2201{ 2202 int32_t name = android_atomic_inc(&mNameGenerator); 2203 mLayers.add(name, layer); 2204 return name; 2205} 2206 2207void Client::detachLayer(const LayerBaseClient* layer) 2208{ 2209 // we do a linear search here, because this doesn't happen often 2210 const size_t count = mLayers.size(); 2211 for (size_t i=0 ; i<count ; i++) { 2212 if (mLayers.valueAt(i) == layer) { 2213 mLayers.removeItemsAt(i, 1); 2214 break; 2215 } 2216 } 2217} 2218sp<LayerBaseClient> Client::getLayerUser(int32_t i) const { 2219 sp<LayerBaseClient> lbc; 2220 const wp<LayerBaseClient>& layer(mLayers.valueFor(i)); 2221 if (layer != 0) { 2222 lbc = layer.promote(); 2223 LOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i)); 2224 } 2225 return lbc; 2226} 2227 2228sp<IMemoryHeap> Client::getControlBlock() const { 2229 return 0; 2230} 2231ssize_t Client::getTokenForSurface(const sp<ISurface>& sur) const { 2232 return -1; 2233} 2234sp<ISurface> Client::createSurface( 2235 ISurfaceComposerClient::surface_data_t* params, int pid, 2236 const String8& name, 2237 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2238 uint32_t flags) 2239{ 2240 return mFlinger->createSurface(this, pid, name, params, 2241 display, w, h, format, flags); 2242} 2243status_t Client::destroySurface(SurfaceID sid) { 2244 return mFlinger->removeSurface(this, sid); 2245} 2246status_t Client::setState(int32_t count, const layer_state_t* states) { 2247 return mFlinger->setClientState(this, count, states); 2248} 2249 2250// --------------------------------------------------------------------------- 2251 2252UserClient::UserClient(const sp<SurfaceFlinger>& flinger) 2253 : ctrlblk(0), mBitmap(0), mFlinger(flinger) 2254{ 2255 const int pgsize = getpagesize(); 2256 const int cblksize = ((sizeof(SharedClient)+(pgsize-1))&~(pgsize-1)); 2257 2258 mCblkHeap = new MemoryHeapBase(cblksize, 0, 2259 "SurfaceFlinger Client control-block"); 2260 2261 ctrlblk = static_cast<SharedClient *>(mCblkHeap->getBase()); 2262 if (ctrlblk) { // construct the shared structure in-place. 2263 new(ctrlblk) SharedClient; 2264 } 2265} 2266 2267UserClient::~UserClient() 2268{ 2269 if (ctrlblk) { 2270 ctrlblk->~SharedClient(); // destroy our shared-structure. 2271 } 2272 2273 /* 2274 * When a UserClient dies, it's unclear what to do exactly. 2275 * We could go ahead and destroy all surfaces linked to that client 2276 * however, it wouldn't be fair to the main Client 2277 * (usually the the window-manager), which might want to re-target 2278 * the layer to another UserClient. 2279 * I think the best is to do nothing, or not much; in most cases the 2280 * WM itself will go ahead and clean things up when it detects a client of 2281 * his has died. 2282 * The remaining question is what to display? currently we keep 2283 * just keep the current buffer. 2284 */ 2285} 2286 2287status_t UserClient::initCheck() const { 2288 return ctrlblk == 0 ? NO_INIT : NO_ERROR; 2289} 2290 2291void UserClient::detachLayer(const Layer* layer) 2292{ 2293 int32_t name = layer->getToken(); 2294 if (name >= 0) { 2295 int32_t mask = 1LU<<name; 2296 if ((android_atomic_and(~mask, &mBitmap) & mask) == 0) { 2297 LOGW("token %d wasn't marked as used %08x", name, int(mBitmap)); 2298 } 2299 } 2300} 2301 2302sp<IMemoryHeap> UserClient::getControlBlock() const { 2303 return mCblkHeap; 2304} 2305 2306ssize_t UserClient::getTokenForSurface(const sp<ISurface>& sur) const 2307{ 2308 int32_t name = NAME_NOT_FOUND; 2309 sp<Layer> layer(mFlinger->getLayer(sur)); 2310 if (layer == 0) return name; 2311 2312 // if this layer already has a token, just return it 2313 name = layer->getToken(); 2314 if ((name >= 0) && (layer->getClient() == this)) 2315 return name; 2316 2317 name = 0; 2318 do { 2319 int32_t mask = 1LU<<name; 2320 if ((android_atomic_or(mask, &mBitmap) & mask) == 0) { 2321 // we found and locked that name 2322 status_t err = layer->setToken( 2323 const_cast<UserClient*>(this), ctrlblk, name); 2324 if (err != NO_ERROR) { 2325 // free the name 2326 android_atomic_and(~mask, &mBitmap); 2327 name = err; 2328 } 2329 break; 2330 } 2331 if (++name > 31) 2332 name = NO_MEMORY; 2333 } while(name >= 0); 2334 2335 //LOGD("getTokenForSurface(%p) => %d (client=%p, bitmap=%08lx)", 2336 // sur->asBinder().get(), name, this, mBitmap); 2337 return name; 2338} 2339 2340sp<ISurface> UserClient::createSurface( 2341 ISurfaceComposerClient::surface_data_t* params, int pid, 2342 const String8& name, 2343 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2344 uint32_t flags) { 2345 return 0; 2346} 2347status_t UserClient::destroySurface(SurfaceID sid) { 2348 return INVALID_OPERATION; 2349} 2350status_t UserClient::setState(int32_t count, const layer_state_t* states) { 2351 return INVALID_OPERATION; 2352} 2353 2354// --------------------------------------------------------------------------- 2355 2356GraphicPlane::GraphicPlane() 2357 : mHw(0) 2358{ 2359} 2360 2361GraphicPlane::~GraphicPlane() { 2362 delete mHw; 2363} 2364 2365bool GraphicPlane::initialized() const { 2366 return mHw ? true : false; 2367} 2368 2369int GraphicPlane::getWidth() const { 2370 return mWidth; 2371} 2372 2373int GraphicPlane::getHeight() const { 2374 return mHeight; 2375} 2376 2377void GraphicPlane::setDisplayHardware(DisplayHardware *hw) 2378{ 2379 mHw = hw; 2380 2381 // initialize the display orientation transform. 2382 // it's a constant that should come from the display driver. 2383 int displayOrientation = ISurfaceComposer::eOrientationDefault; 2384 char property[PROPERTY_VALUE_MAX]; 2385 if (property_get("ro.sf.hwrotation", property, NULL) > 0) { 2386 //displayOrientation 2387 switch (atoi(property)) { 2388 case 90: 2389 displayOrientation = ISurfaceComposer::eOrientation90; 2390 break; 2391 case 270: 2392 displayOrientation = ISurfaceComposer::eOrientation270; 2393 break; 2394 } 2395 } 2396 2397 const float w = hw->getWidth(); 2398 const float h = hw->getHeight(); 2399 GraphicPlane::orientationToTransfrom(displayOrientation, w, h, 2400 &mDisplayTransform); 2401 if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) { 2402 mDisplayWidth = h; 2403 mDisplayHeight = w; 2404 } else { 2405 mDisplayWidth = w; 2406 mDisplayHeight = h; 2407 } 2408 2409 setOrientation(ISurfaceComposer::eOrientationDefault); 2410} 2411 2412status_t GraphicPlane::orientationToTransfrom( 2413 int orientation, int w, int h, Transform* tr) 2414{ 2415 uint32_t flags = 0; 2416 switch (orientation) { 2417 case ISurfaceComposer::eOrientationDefault: 2418 flags = Transform::ROT_0; 2419 break; 2420 case ISurfaceComposer::eOrientation90: 2421 flags = Transform::ROT_90; 2422 break; 2423 case ISurfaceComposer::eOrientation180: 2424 flags = Transform::ROT_180; 2425 break; 2426 case ISurfaceComposer::eOrientation270: 2427 flags = Transform::ROT_270; 2428 break; 2429 default: 2430 return BAD_VALUE; 2431 } 2432 tr->set(flags, w, h); 2433 return NO_ERROR; 2434} 2435 2436status_t GraphicPlane::setOrientation(int orientation) 2437{ 2438 // If the rotation can be handled in hardware, this is where 2439 // the magic should happen. 2440 2441 const DisplayHardware& hw(displayHardware()); 2442 const float w = mDisplayWidth; 2443 const float h = mDisplayHeight; 2444 mWidth = int(w); 2445 mHeight = int(h); 2446 2447 Transform orientationTransform; 2448 GraphicPlane::orientationToTransfrom(orientation, w, h, 2449 &orientationTransform); 2450 if (orientation & ISurfaceComposer::eOrientationSwapMask) { 2451 mWidth = int(h); 2452 mHeight = int(w); 2453 } 2454 2455 mOrientation = orientation; 2456 mGlobalTransform = mDisplayTransform * orientationTransform; 2457 return NO_ERROR; 2458} 2459 2460const DisplayHardware& GraphicPlane::displayHardware() const { 2461 return *mHw; 2462} 2463 2464DisplayHardware& GraphicPlane::editDisplayHardware() { 2465 return *mHw; 2466} 2467 2468const Transform& GraphicPlane::transform() const { 2469 return mGlobalTransform; 2470} 2471 2472EGLDisplay GraphicPlane::getEGLDisplay() const { 2473 return mHw->getEGLDisplay(); 2474} 2475 2476// --------------------------------------------------------------------------- 2477 2478}; // namespace android 2479