SurfaceFlinger.cpp revision ff615cc7a1cceedd705b0623b058c54669b29596
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#include <binder/PermissionCache.h> 36 37#include <gui/IDisplayEventConnection.h> 38 39#include <utils/String8.h> 40#include <utils/String16.h> 41#include <utils/StopWatch.h> 42 43#include <ui/GraphicBufferAllocator.h> 44#include <ui/PixelFormat.h> 45 46#include <pixelflinger/pixelflinger.h> 47#include <GLES/gl.h> 48 49#include "clz.h" 50#include "DisplayEventConnection.h" 51#include "EventThread.h" 52#include "GLExtensions.h" 53#include "DdmConnection.h" 54#include "Layer.h" 55#include "LayerDim.h" 56#include "LayerScreenshot.h" 57#include "SurfaceFlinger.h" 58 59#include "DisplayHardware/DisplayHardware.h" 60#include "DisplayHardware/HWComposer.h" 61 62#include <private/android_filesystem_config.h> 63#include <private/surfaceflinger/SharedBufferStack.h> 64 65#define EGL_VERSION_HW_ANDROID 0x3143 66 67#define DISPLAY_COUNT 1 68 69namespace android { 70// --------------------------------------------------------------------------- 71 72const String16 sHardwareTest("android.permission.HARDWARE_TEST"); 73const String16 sAccessSurfaceFlinger("android.permission.ACCESS_SURFACE_FLINGER"); 74const String16 sReadFramebuffer("android.permission.READ_FRAME_BUFFER"); 75const String16 sDump("android.permission.DUMP"); 76 77// --------------------------------------------------------------------------- 78 79SurfaceFlinger::SurfaceFlinger() 80 : BnSurfaceComposer(), Thread(false), 81 mTransactionFlags(0), 82 mTransationPending(false), 83 mLayersRemoved(false), 84 mBootTime(systemTime()), 85 mVisibleRegionsDirty(false), 86 mHwWorkListDirty(false), 87 mElectronBeamAnimationMode(0), 88 mDebugRegion(0), 89 mDebugBackground(0), 90 mDebugDDMS(0), 91 mDebugDisableHWC(0), 92 mDebugDisableTransformHint(0), 93 mDebugInSwapBuffers(0), 94 mLastSwapBufferTime(0), 95 mDebugInTransaction(0), 96 mLastTransactionTime(0), 97 mBootFinished(false), 98 mConsoleSignals(0), 99 mSecureFrameBuffer(0) 100{ 101 init(); 102} 103 104void SurfaceFlinger::init() 105{ 106 ALOGI("SurfaceFlinger is starting"); 107 108 // debugging stuff... 109 char value[PROPERTY_VALUE_MAX]; 110 111 property_get("debug.sf.showupdates", value, "0"); 112 mDebugRegion = atoi(value); 113 114 property_get("debug.sf.showbackground", value, "0"); 115 mDebugBackground = atoi(value); 116 117 property_get("debug.sf.ddms", value, "0"); 118 mDebugDDMS = atoi(value); 119 if (mDebugDDMS) { 120 DdmConnection::start(getServiceName()); 121 } 122 123 ALOGI_IF(mDebugRegion, "showupdates enabled"); 124 ALOGI_IF(mDebugBackground, "showbackground enabled"); 125 ALOGI_IF(mDebugDDMS, "DDMS debugging enabled"); 126} 127 128void SurfaceFlinger::onFirstRef() 129{ 130 mEventQueue.init(this); 131 132 run("SurfaceFlinger", PRIORITY_URGENT_DISPLAY); 133 134 // Wait for the main thread to be done with its initialization 135 mReadyToRunBarrier.wait(); 136} 137 138 139SurfaceFlinger::~SurfaceFlinger() 140{ 141 glDeleteTextures(1, &mWormholeTexName); 142} 143 144void SurfaceFlinger::binderDied(const wp<IBinder>& who) 145{ 146 // the window manager died on us. prepare its eulogy. 147 148 // reset screen orientation 149 Vector<ComposerState> state; 150 setTransactionState(state, eOrientationDefault, 0); 151 152 // restart the boot-animation 153 property_set("ctl.start", "bootanim"); 154} 155 156sp<IMemoryHeap> SurfaceFlinger::getCblk() const 157{ 158 return mServerHeap; 159} 160 161sp<ISurfaceComposerClient> SurfaceFlinger::createConnection() 162{ 163 sp<ISurfaceComposerClient> bclient; 164 sp<Client> client(new Client(this)); 165 status_t err = client->initCheck(); 166 if (err == NO_ERROR) { 167 bclient = client; 168 } 169 return bclient; 170} 171 172sp<IGraphicBufferAlloc> SurfaceFlinger::createGraphicBufferAlloc() 173{ 174 sp<GraphicBufferAlloc> gba(new GraphicBufferAlloc()); 175 return gba; 176} 177 178const GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) const 179{ 180 ALOGE_IF(uint32_t(dpy) >= DISPLAY_COUNT, "Invalid DisplayID %d", dpy); 181 const GraphicPlane& plane(mGraphicPlanes[dpy]); 182 return plane; 183} 184 185GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) 186{ 187 return const_cast<GraphicPlane&>( 188 const_cast<SurfaceFlinger const *>(this)->graphicPlane(dpy)); 189} 190 191void SurfaceFlinger::bootFinished() 192{ 193 const nsecs_t now = systemTime(); 194 const nsecs_t duration = now - mBootTime; 195 ALOGI("Boot is finished (%ld ms)", long(ns2ms(duration)) ); 196 mBootFinished = true; 197 198 // wait patiently for the window manager death 199 const String16 name("window"); 200 sp<IBinder> window(defaultServiceManager()->getService(name)); 201 if (window != 0) { 202 window->linkToDeath(this); 203 } 204 205 // stop boot animation 206 property_set("ctl.stop", "bootanim"); 207} 208 209static inline uint16_t pack565(int r, int g, int b) { 210 return (r<<11)|(g<<5)|b; 211} 212 213status_t SurfaceFlinger::readyToRun() 214{ 215 ALOGI( "SurfaceFlinger's main thread ready to run. " 216 "Initializing graphics H/W..."); 217 218 // we only support one display currently 219 int dpy = 0; 220 221 { 222 // initialize the main display 223 GraphicPlane& plane(graphicPlane(dpy)); 224 DisplayHardware* const hw = new DisplayHardware(this, dpy); 225 plane.setDisplayHardware(hw); 226 } 227 228 // create the shared control-block 229 mServerHeap = new MemoryHeapBase(4096, 230 MemoryHeapBase::READ_ONLY, "SurfaceFlinger read-only heap"); 231 ALOGE_IF(mServerHeap==0, "can't create shared memory dealer"); 232 233 mServerCblk = static_cast<surface_flinger_cblk_t*>(mServerHeap->getBase()); 234 ALOGE_IF(mServerCblk==0, "can't get to shared control block's address"); 235 236 new(mServerCblk) surface_flinger_cblk_t; 237 238 // initialize primary screen 239 // (other display should be initialized in the same manner, but 240 // asynchronously, as they could come and go. None of this is supported 241 // yet). 242 const GraphicPlane& plane(graphicPlane(dpy)); 243 const DisplayHardware& hw = plane.displayHardware(); 244 const uint32_t w = hw.getWidth(); 245 const uint32_t h = hw.getHeight(); 246 const uint32_t f = hw.getFormat(); 247 hw.makeCurrent(); 248 249 // initialize the shared control block 250 mServerCblk->connected |= 1<<dpy; 251 display_cblk_t* dcblk = mServerCblk->displays + dpy; 252 memset(dcblk, 0, sizeof(display_cblk_t)); 253 dcblk->w = plane.getWidth(); 254 dcblk->h = plane.getHeight(); 255 dcblk->format = f; 256 dcblk->orientation = ISurfaceComposer::eOrientationDefault; 257 dcblk->xdpi = hw.getDpiX(); 258 dcblk->ydpi = hw.getDpiY(); 259 dcblk->fps = hw.getRefreshRate(); 260 dcblk->density = hw.getDensity(); 261 262 // Initialize OpenGL|ES 263 glPixelStorei(GL_UNPACK_ALIGNMENT, 4); 264 glPixelStorei(GL_PACK_ALIGNMENT, 4); 265 glEnableClientState(GL_VERTEX_ARRAY); 266 glEnable(GL_SCISSOR_TEST); 267 glShadeModel(GL_FLAT); 268 glDisable(GL_DITHER); 269 glDisable(GL_CULL_FACE); 270 271 const uint16_t g0 = pack565(0x0F,0x1F,0x0F); 272 const uint16_t g1 = pack565(0x17,0x2f,0x17); 273 const uint16_t wormholeTexData[4] = { g0, g1, g1, g0 }; 274 glGenTextures(1, &mWormholeTexName); 275 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 276 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 277 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 278 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 279 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 280 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, 281 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, wormholeTexData); 282 283 const uint16_t protTexData[] = { pack565(0x03, 0x03, 0x03) }; 284 glGenTextures(1, &mProtectedTexName); 285 glBindTexture(GL_TEXTURE_2D, mProtectedTexName); 286 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 287 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 288 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 289 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 290 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1, 1, 0, 291 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, protTexData); 292 293 glViewport(0, 0, w, h); 294 glMatrixMode(GL_PROJECTION); 295 glLoadIdentity(); 296 // put the origin in the left-bottom corner 297 glOrthof(0, w, 0, h, 0, 1); // l=0, r=w ; b=0, t=h 298 299 300 // start the EventThread 301 mEventThread = new EventThread(this); 302 mEventQueue.setEventThread(mEventThread); 303 hw.startSleepManagement(); 304 305 /* 306 * We're now ready to accept clients... 307 */ 308 309 mReadyToRunBarrier.open(); 310 311 // start boot animation 312 property_set("ctl.start", "bootanim"); 313 314 return NO_ERROR; 315} 316 317// ---------------------------------------------------------------------------- 318 319bool SurfaceFlinger::authenticateSurfaceTexture( 320 const sp<ISurfaceTexture>& surfaceTexture) const { 321 Mutex::Autolock _l(mStateLock); 322 sp<IBinder> surfaceTextureBinder(surfaceTexture->asBinder()); 323 324 // Check the visible layer list for the ISurface 325 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 326 size_t count = currentLayers.size(); 327 for (size_t i=0 ; i<count ; i++) { 328 const sp<LayerBase>& layer(currentLayers[i]); 329 sp<LayerBaseClient> lbc(layer->getLayerBaseClient()); 330 if (lbc != NULL) { 331 wp<IBinder> lbcBinder = lbc->getSurfaceTextureBinder(); 332 if (lbcBinder == surfaceTextureBinder) { 333 return true; 334 } 335 } 336 } 337 338 // Check the layers in the purgatory. This check is here so that if a 339 // SurfaceTexture gets destroyed before all the clients are done using it, 340 // the error will not be reported as "surface XYZ is not authenticated", but 341 // will instead fail later on when the client tries to use the surface, 342 // which should be reported as "surface XYZ returned an -ENODEV". The 343 // purgatorized layers are no less authentic than the visible ones, so this 344 // should not cause any harm. 345 size_t purgatorySize = mLayerPurgatory.size(); 346 for (size_t i=0 ; i<purgatorySize ; i++) { 347 const sp<LayerBase>& layer(mLayerPurgatory.itemAt(i)); 348 sp<LayerBaseClient> lbc(layer->getLayerBaseClient()); 349 if (lbc != NULL) { 350 wp<IBinder> lbcBinder = lbc->getSurfaceTextureBinder(); 351 if (lbcBinder == surfaceTextureBinder) { 352 return true; 353 } 354 } 355 } 356 357 return false; 358} 359 360// ---------------------------------------------------------------------------- 361 362sp<IDisplayEventConnection> SurfaceFlinger::createDisplayEventConnection() { 363 return mEventThread->createEventConnection(); 364} 365 366// ---------------------------------------------------------------------------- 367 368void SurfaceFlinger::waitForEvent() { 369 mEventQueue.waitMessage(); 370} 371 372void SurfaceFlinger::signalTransaction() { 373 mEventQueue.invalidate(); 374} 375 376void SurfaceFlinger::signalLayerUpdate() { 377 mEventQueue.invalidate(); 378} 379 380void SurfaceFlinger::signalRefresh() { 381 mEventQueue.refresh(); 382} 383 384status_t SurfaceFlinger::postMessageAsync(const sp<MessageBase>& msg, 385 nsecs_t reltime, uint32_t flags) { 386 return mEventQueue.postMessage(msg, reltime); 387} 388 389status_t SurfaceFlinger::postMessageSync(const sp<MessageBase>& msg, 390 nsecs_t reltime, uint32_t flags) { 391 status_t res = mEventQueue.postMessage(msg, reltime); 392 if (res == NO_ERROR) { 393 msg->wait(); 394 } 395 return res; 396} 397 398bool SurfaceFlinger::threadLoop() 399{ 400 waitForEvent(); 401 return true; 402} 403 404void SurfaceFlinger::onMessageReceived(int32_t what) 405{ 406 switch (what) { 407 case MessageQueue::REFRESH: { 408// case MessageQueue::INVALIDATE: { 409 // check for transactions 410 if (CC_UNLIKELY(mConsoleSignals)) { 411 handleConsoleEvents(); 412 } 413 414 // if we're in a global transaction, don't do anything. 415 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 416 uint32_t transactionFlags = peekTransactionFlags(mask); 417 if (CC_UNLIKELY(transactionFlags)) { 418 handleTransaction(transactionFlags); 419 } 420 421 // post surfaces (if needed) 422 handlePageFlip(); 423 424// signalRefresh(); 425// 426// } break; 427// 428// case MessageQueue::REFRESH: { 429 430 handleRefresh(); 431 432 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 433 434// if (mDirtyRegion.isEmpty()) { 435// return; 436// } 437 438 if (CC_UNLIKELY(mHwWorkListDirty)) { 439 // build the h/w work list 440 handleWorkList(); 441 } 442 443 if (CC_LIKELY(hw.canDraw())) { 444 // repaint the framebuffer (if needed) 445 handleRepaint(); 446 // inform the h/w that we're done compositing 447 hw.compositionComplete(); 448 postFramebuffer(); 449 } else { 450 // pretend we did the post 451 hw.compositionComplete(); 452 } 453 454 } break; 455 } 456} 457 458void SurfaceFlinger::postFramebuffer() 459{ 460 // mSwapRegion can be empty here is some cases, for instance if a hidden 461 // or fully transparent window is updating. 462 // in that case, we need to flip anyways to not risk a deadlock with 463 // h/w composer. 464 465 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 466 const nsecs_t now = systemTime(); 467 mDebugInSwapBuffers = now; 468 hw.flip(mSwapRegion); 469 470 size_t numLayers = mVisibleLayersSortedByZ.size(); 471 for (size_t i = 0; i < numLayers; i++) { 472 mVisibleLayersSortedByZ[i]->onLayerDisplayed(); 473 } 474 475 mLastSwapBufferTime = systemTime() - now; 476 mDebugInSwapBuffers = 0; 477 mSwapRegion.clear(); 478} 479 480void SurfaceFlinger::handleConsoleEvents() 481{ 482 // something to do with the console 483 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 484 485 int what = android_atomic_and(0, &mConsoleSignals); 486 if (what & eConsoleAcquired) { 487 hw.acquireScreen(); 488 // this is a temporary work-around, eventually this should be called 489 // by the power-manager 490 SurfaceFlinger::turnElectronBeamOn(mElectronBeamAnimationMode); 491 } 492 493 if (what & eConsoleReleased) { 494 if (hw.isScreenAcquired()) { 495 hw.releaseScreen(); 496 } 497 } 498 499 mDirtyRegion.set(hw.bounds()); 500} 501 502void SurfaceFlinger::handleTransaction(uint32_t transactionFlags) 503{ 504 Mutex::Autolock _l(mStateLock); 505 const nsecs_t now = systemTime(); 506 mDebugInTransaction = now; 507 508 // Here we're guaranteed that some transaction flags are set 509 // so we can call handleTransactionLocked() unconditionally. 510 // We call getTransactionFlags(), which will also clear the flags, 511 // with mStateLock held to guarantee that mCurrentState won't change 512 // until the transaction is committed. 513 514 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 515 transactionFlags = getTransactionFlags(mask); 516 handleTransactionLocked(transactionFlags); 517 518 mLastTransactionTime = systemTime() - now; 519 mDebugInTransaction = 0; 520 invalidateHwcGeometry(); 521 // here the transaction has been committed 522} 523 524void SurfaceFlinger::handleTransactionLocked(uint32_t transactionFlags) 525{ 526 const LayerVector& currentLayers(mCurrentState.layersSortedByZ); 527 const size_t count = currentLayers.size(); 528 529 /* 530 * Traversal of the children 531 * (perform the transaction for each of them if needed) 532 */ 533 534 const bool layersNeedTransaction = transactionFlags & eTraversalNeeded; 535 if (layersNeedTransaction) { 536 for (size_t i=0 ; i<count ; i++) { 537 const sp<LayerBase>& layer = currentLayers[i]; 538 uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded); 539 if (!trFlags) continue; 540 541 const uint32_t flags = layer->doTransaction(0); 542 if (flags & Layer::eVisibleRegion) 543 mVisibleRegionsDirty = true; 544 } 545 } 546 547 /* 548 * Perform our own transaction if needed 549 */ 550 551 if (transactionFlags & eTransactionNeeded) { 552 if (mCurrentState.orientation != mDrawingState.orientation) { 553 // the orientation has changed, recompute all visible regions 554 // and invalidate everything. 555 556 const int dpy = 0; 557 const int orientation = mCurrentState.orientation; 558 // Currently unused: const uint32_t flags = mCurrentState.orientationFlags; 559 GraphicPlane& plane(graphicPlane(dpy)); 560 plane.setOrientation(orientation); 561 562 // update the shared control block 563 const DisplayHardware& hw(plane.displayHardware()); 564 volatile display_cblk_t* dcblk = mServerCblk->displays + dpy; 565 dcblk->orientation = orientation; 566 dcblk->w = plane.getWidth(); 567 dcblk->h = plane.getHeight(); 568 569 mVisibleRegionsDirty = true; 570 mDirtyRegion.set(hw.bounds()); 571 } 572 573 if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) { 574 // layers have been added 575 mVisibleRegionsDirty = true; 576 } 577 578 // some layers might have been removed, so 579 // we need to update the regions they're exposing. 580 if (mLayersRemoved) { 581 mLayersRemoved = false; 582 mVisibleRegionsDirty = true; 583 const LayerVector& previousLayers(mDrawingState.layersSortedByZ); 584 const size_t count = previousLayers.size(); 585 for (size_t i=0 ; i<count ; i++) { 586 const sp<LayerBase>& layer(previousLayers[i]); 587 if (currentLayers.indexOf( layer ) < 0) { 588 // this layer is not visible anymore 589 mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen); 590 } 591 } 592 } 593 } 594 595 commitTransaction(); 596} 597 598void SurfaceFlinger::computeVisibleRegions( 599 const LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion) 600{ 601 const GraphicPlane& plane(graphicPlane(0)); 602 const Transform& planeTransform(plane.transform()); 603 const DisplayHardware& hw(plane.displayHardware()); 604 const Region screenRegion(hw.bounds()); 605 606 Region aboveOpaqueLayers; 607 Region aboveCoveredLayers; 608 Region dirty; 609 610 bool secureFrameBuffer = false; 611 612 size_t i = currentLayers.size(); 613 while (i--) { 614 const sp<LayerBase>& layer = currentLayers[i]; 615 layer->validateVisibility(planeTransform); 616 617 // start with the whole surface at its current location 618 const Layer::State& s(layer->drawingState()); 619 620 /* 621 * opaqueRegion: area of a surface that is fully opaque. 622 */ 623 Region opaqueRegion; 624 625 /* 626 * visibleRegion: area of a surface that is visible on screen 627 * and not fully transparent. This is essentially the layer's 628 * footprint minus the opaque regions above it. 629 * Areas covered by a translucent surface are considered visible. 630 */ 631 Region visibleRegion; 632 633 /* 634 * coveredRegion: area of a surface that is covered by all 635 * visible regions above it (which includes the translucent areas). 636 */ 637 Region coveredRegion; 638 639 640 // handle hidden surfaces by setting the visible region to empty 641 if (CC_LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) { 642 const bool translucent = !layer->isOpaque(); 643 const Rect bounds(layer->visibleBounds()); 644 visibleRegion.set(bounds); 645 visibleRegion.andSelf(screenRegion); 646 if (!visibleRegion.isEmpty()) { 647 // Remove the transparent area from the visible region 648 if (translucent) { 649 visibleRegion.subtractSelf(layer->transparentRegionScreen); 650 } 651 652 // compute the opaque region 653 const int32_t layerOrientation = layer->getOrientation(); 654 if (s.alpha==255 && !translucent && 655 ((layerOrientation & Transform::ROT_INVALID) == false)) { 656 // the opaque region is the layer's footprint 657 opaqueRegion = visibleRegion; 658 } 659 } 660 } 661 662 // Clip the covered region to the visible region 663 coveredRegion = aboveCoveredLayers.intersect(visibleRegion); 664 665 // Update aboveCoveredLayers for next (lower) layer 666 aboveCoveredLayers.orSelf(visibleRegion); 667 668 // subtract the opaque region covered by the layers above us 669 visibleRegion.subtractSelf(aboveOpaqueLayers); 670 671 // compute this layer's dirty region 672 if (layer->contentDirty) { 673 // we need to invalidate the whole region 674 dirty = visibleRegion; 675 // as well, as the old visible region 676 dirty.orSelf(layer->visibleRegionScreen); 677 layer->contentDirty = false; 678 } else { 679 /* compute the exposed region: 680 * the exposed region consists of two components: 681 * 1) what's VISIBLE now and was COVERED before 682 * 2) what's EXPOSED now less what was EXPOSED before 683 * 684 * note that (1) is conservative, we start with the whole 685 * visible region but only keep what used to be covered by 686 * something -- which mean it may have been exposed. 687 * 688 * (2) handles areas that were not covered by anything but got 689 * exposed because of a resize. 690 */ 691 const Region newExposed = visibleRegion - coveredRegion; 692 const Region oldVisibleRegion = layer->visibleRegionScreen; 693 const Region oldCoveredRegion = layer->coveredRegionScreen; 694 const Region oldExposed = oldVisibleRegion - oldCoveredRegion; 695 dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed); 696 } 697 dirty.subtractSelf(aboveOpaqueLayers); 698 699 // accumulate to the screen dirty region 700 dirtyRegion.orSelf(dirty); 701 702 // Update aboveOpaqueLayers for next (lower) layer 703 aboveOpaqueLayers.orSelf(opaqueRegion); 704 705 // Store the visible region is screen space 706 layer->setVisibleRegion(visibleRegion); 707 layer->setCoveredRegion(coveredRegion); 708 709 // If a secure layer is partially visible, lock-down the screen! 710 if (layer->isSecure() && !visibleRegion.isEmpty()) { 711 secureFrameBuffer = true; 712 } 713 } 714 715 // invalidate the areas where a layer was removed 716 dirtyRegion.orSelf(mDirtyRegionRemovedLayer); 717 mDirtyRegionRemovedLayer.clear(); 718 719 mSecureFrameBuffer = secureFrameBuffer; 720 opaqueRegion = aboveOpaqueLayers; 721} 722 723 724void SurfaceFlinger::commitTransaction() 725{ 726 if (!mLayersPendingRemoval.isEmpty()) { 727 // Notify removed layers now that they can't be drawn from 728 for (size_t i = 0; i < mLayersPendingRemoval.size(); i++) { 729 mLayersPendingRemoval[i]->onRemoved(); 730 } 731 mLayersPendingRemoval.clear(); 732 } 733 734 mDrawingState = mCurrentState; 735 mTransationPending = false; 736 mTransactionCV.broadcast(); 737} 738 739void SurfaceFlinger::handlePageFlip() 740{ 741 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 742 const Region screenRegion(hw.bounds()); 743 744 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 745 const bool visibleRegions = lockPageFlip(currentLayers); 746 747 if (visibleRegions || mVisibleRegionsDirty) { 748 Region opaqueRegion; 749 computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion); 750 751 /* 752 * rebuild the visible layer list 753 */ 754 const size_t count = currentLayers.size(); 755 mVisibleLayersSortedByZ.clear(); 756 mVisibleLayersSortedByZ.setCapacity(count); 757 for (size_t i=0 ; i<count ; i++) { 758 if (!currentLayers[i]->visibleRegionScreen.isEmpty()) 759 mVisibleLayersSortedByZ.add(currentLayers[i]); 760 } 761 762 mWormholeRegion = screenRegion.subtract(opaqueRegion); 763 mVisibleRegionsDirty = false; 764 invalidateHwcGeometry(); 765 } 766 767 unlockPageFlip(currentLayers); 768 769 mDirtyRegion.orSelf(getAndClearInvalidateRegion()); 770 mDirtyRegion.andSelf(screenRegion); 771} 772 773void SurfaceFlinger::invalidateHwcGeometry() 774{ 775 mHwWorkListDirty = true; 776} 777 778bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers) 779{ 780 bool recomputeVisibleRegions = false; 781 size_t count = currentLayers.size(); 782 sp<LayerBase> const* layers = currentLayers.array(); 783 for (size_t i=0 ; i<count ; i++) { 784 const sp<LayerBase>& layer(layers[i]); 785 layer->lockPageFlip(recomputeVisibleRegions); 786 } 787 return recomputeVisibleRegions; 788} 789 790void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers) 791{ 792 const GraphicPlane& plane(graphicPlane(0)); 793 const Transform& planeTransform(plane.transform()); 794 const size_t count = currentLayers.size(); 795 sp<LayerBase> const* layers = currentLayers.array(); 796 for (size_t i=0 ; i<count ; i++) { 797 const sp<LayerBase>& layer(layers[i]); 798 layer->unlockPageFlip(planeTransform, mDirtyRegion); 799 } 800} 801 802void SurfaceFlinger::handleRefresh() 803{ 804 bool needInvalidate = false; 805 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 806 const size_t count = currentLayers.size(); 807 for (size_t i=0 ; i<count ; i++) { 808 const sp<LayerBase>& layer(currentLayers[i]); 809 if (layer->onPreComposition()) { 810 needInvalidate = true; 811 } 812 } 813 if (needInvalidate) { 814 signalLayerUpdate(); 815 } 816} 817 818 819void SurfaceFlinger::handleWorkList() 820{ 821 mHwWorkListDirty = false; 822 HWComposer& hwc(graphicPlane(0).displayHardware().getHwComposer()); 823 if (hwc.initCheck() == NO_ERROR) { 824 const Vector< sp<LayerBase> >& currentLayers(mVisibleLayersSortedByZ); 825 const size_t count = currentLayers.size(); 826 hwc.createWorkList(count); 827 hwc_layer_t* const cur(hwc.getLayers()); 828 for (size_t i=0 ; cur && i<count ; i++) { 829 currentLayers[i]->setGeometry(&cur[i]); 830 if (mDebugDisableHWC || mDebugRegion) { 831 cur[i].compositionType = HWC_FRAMEBUFFER; 832 cur[i].flags |= HWC_SKIP_LAYER; 833 } 834 } 835 } 836} 837 838void SurfaceFlinger::handleRepaint() 839{ 840 // compute the invalid region 841 mSwapRegion.orSelf(mDirtyRegion); 842 843 if (CC_UNLIKELY(mDebugRegion)) { 844 debugFlashRegions(); 845 } 846 847 // set the frame buffer 848 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 849 glMatrixMode(GL_MODELVIEW); 850 glLoadIdentity(); 851 852 uint32_t flags = hw.getFlags(); 853 if ((flags & DisplayHardware::SWAP_RECTANGLE) || 854 (flags & DisplayHardware::BUFFER_PRESERVED)) 855 { 856 // we can redraw only what's dirty, but since SWAP_RECTANGLE only 857 // takes a rectangle, we must make sure to update that whole 858 // rectangle in that case 859 if (flags & DisplayHardware::SWAP_RECTANGLE) { 860 // TODO: we really should be able to pass a region to 861 // SWAP_RECTANGLE so that we don't have to redraw all this. 862 mDirtyRegion.set(mSwapRegion.bounds()); 863 } else { 864 // in the BUFFER_PRESERVED case, obviously, we can update only 865 // what's needed and nothing more. 866 // NOTE: this is NOT a common case, as preserving the backbuffer 867 // is costly and usually involves copying the whole update back. 868 } 869 } else { 870 if (flags & DisplayHardware::PARTIAL_UPDATES) { 871 // We need to redraw the rectangle that will be updated 872 // (pushed to the framebuffer). 873 // This is needed because PARTIAL_UPDATES only takes one 874 // rectangle instead of a region (see DisplayHardware::flip()) 875 mDirtyRegion.set(mSwapRegion.bounds()); 876 } else { 877 // we need to redraw everything (the whole screen) 878 mDirtyRegion.set(hw.bounds()); 879 mSwapRegion = mDirtyRegion; 880 } 881 } 882 883 setupHardwareComposer(mDirtyRegion); 884 composeSurfaces(mDirtyRegion); 885 886 // update the swap region and clear the dirty region 887 mSwapRegion.orSelf(mDirtyRegion); 888 mDirtyRegion.clear(); 889} 890 891void SurfaceFlinger::setupHardwareComposer(Region& dirtyInOut) 892{ 893 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 894 HWComposer& hwc(hw.getHwComposer()); 895 hwc_layer_t* const cur(hwc.getLayers()); 896 if (!cur) { 897 return; 898 } 899 900 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 901 size_t count = layers.size(); 902 903 ALOGE_IF(hwc.getNumLayers() != count, 904 "HAL number of layers (%d) doesn't match surfaceflinger (%d)", 905 hwc.getNumLayers(), count); 906 907 // just to be extra-safe, use the smallest count 908 if (hwc.initCheck() == NO_ERROR) { 909 count = count < hwc.getNumLayers() ? count : hwc.getNumLayers(); 910 } 911 912 /* 913 * update the per-frame h/w composer data for each layer 914 * and build the transparent region of the FB 915 */ 916 for (size_t i=0 ; i<count ; i++) { 917 const sp<LayerBase>& layer(layers[i]); 918 layer->setPerFrameData(&cur[i]); 919 } 920 const size_t fbLayerCount = hwc.getLayerCount(HWC_FRAMEBUFFER); 921 status_t err = hwc.prepare(); 922 ALOGE_IF(err, "HWComposer::prepare failed (%s)", strerror(-err)); 923 924 if (err == NO_ERROR) { 925 // what's happening here is tricky. 926 // we want to clear all the layers with the CLEAR_FB flags 927 // that are opaque. 928 // however, since some GPU are efficient at preserving 929 // the backbuffer, we want to take advantage of that so we do the 930 // clear only in the dirty region (other areas will be preserved 931 // on those GPUs). 932 // NOTE: on non backbuffer preserving GPU, the dirty region 933 // has already been expanded as needed, so the code is correct 934 // there too. 935 // 936 // However, the content of the framebuffer cannot be trusted when 937 // we switch to/from FB/OVERLAY, in which case we need to 938 // expand the dirty region to those areas too. 939 // 940 // Note also that there is a special case when switching from 941 // "no layers in FB" to "some layers in FB", where we need to redraw 942 // the entire FB, since some areas might contain uninitialized 943 // data. 944 // 945 // Also we want to make sure to not clear areas that belong to 946 // layers above that won't redraw (we would just be erasing them), 947 // that is, we can't erase anything outside the dirty region. 948 949 Region transparent; 950 951 if (!fbLayerCount && hwc.getLayerCount(HWC_FRAMEBUFFER)) { 952 transparent.set(hw.getBounds()); 953 dirtyInOut = transparent; 954 } else { 955 for (size_t i=0 ; i<count ; i++) { 956 const sp<LayerBase>& layer(layers[i]); 957 if ((cur[i].hints & HWC_HINT_CLEAR_FB) && layer->isOpaque()) { 958 transparent.orSelf(layer->visibleRegionScreen); 959 } 960 bool isOverlay = (cur[i].compositionType != HWC_FRAMEBUFFER); 961 if (isOverlay != layer->isOverlay()) { 962 // we transitioned to/from overlay, so add this layer 963 // to the dirty region so the framebuffer can be either 964 // cleared or redrawn. 965 dirtyInOut.orSelf(layer->visibleRegionScreen); 966 } 967 layer->setOverlay(isOverlay); 968 } 969 // don't erase stuff outside the dirty region 970 transparent.andSelf(dirtyInOut); 971 } 972 973 /* 974 * clear the area of the FB that need to be transparent 975 */ 976 if (!transparent.isEmpty()) { 977 glClearColor(0,0,0,0); 978 Region::const_iterator it = transparent.begin(); 979 Region::const_iterator const end = transparent.end(); 980 const int32_t height = hw.getHeight(); 981 while (it != end) { 982 const Rect& r(*it++); 983 const GLint sy = height - (r.top + r.height()); 984 glScissor(r.left, sy, r.width(), r.height()); 985 glClear(GL_COLOR_BUFFER_BIT); 986 } 987 } 988 } 989} 990 991void SurfaceFlinger::composeSurfaces(const Region& dirty) 992{ 993 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 994 HWComposer& hwc(hw.getHwComposer()); 995 996 const size_t fbLayerCount = hwc.getLayerCount(HWC_FRAMEBUFFER); 997 if (CC_UNLIKELY(fbLayerCount && !mWormholeRegion.isEmpty())) { 998 // should never happen unless the window manager has a bug 999 // draw something... 1000 drawWormhole(); 1001 } 1002 1003 // FIXME: workaroud for b/6020860 1004 glEnable(GL_SCISSOR_TEST); 1005 glScissor(0,0,0,0); 1006 glClear(GL_COLOR_BUFFER_BIT); 1007 // end-workaround 1008 1009 /* 1010 * and then, render the layers targeted at the framebuffer 1011 */ 1012 hwc_layer_t* const cur(hwc.getLayers()); 1013 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1014 size_t count = layers.size(); 1015 for (size_t i=0 ; i<count ; i++) { 1016 if (cur && (cur[i].compositionType != HWC_FRAMEBUFFER)) { 1017 continue; 1018 } 1019 const sp<LayerBase>& layer(layers[i]); 1020 const Region clip(dirty.intersect(layer->visibleRegionScreen)); 1021 if (!clip.isEmpty()) { 1022 layer->draw(clip); 1023 } 1024 } 1025} 1026 1027void SurfaceFlinger::debugFlashRegions() 1028{ 1029 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1030 const uint32_t flags = hw.getFlags(); 1031 const int32_t height = hw.getHeight(); 1032 if (mSwapRegion.isEmpty()) { 1033 return; 1034 } 1035 1036 if (!((flags & DisplayHardware::SWAP_RECTANGLE) || 1037 (flags & DisplayHardware::BUFFER_PRESERVED))) { 1038 const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ? 1039 mDirtyRegion.bounds() : hw.bounds()); 1040 composeSurfaces(repaint); 1041 } 1042 1043 glDisable(GL_TEXTURE_EXTERNAL_OES); 1044 glDisable(GL_TEXTURE_2D); 1045 glDisable(GL_BLEND); 1046 glDisable(GL_SCISSOR_TEST); 1047 1048 static int toggle = 0; 1049 toggle = 1 - toggle; 1050 if (toggle) { 1051 glColor4f(1, 0, 1, 1); 1052 } else { 1053 glColor4f(1, 1, 0, 1); 1054 } 1055 1056 Region::const_iterator it = mDirtyRegion.begin(); 1057 Region::const_iterator const end = mDirtyRegion.end(); 1058 while (it != end) { 1059 const Rect& r = *it++; 1060 GLfloat vertices[][2] = { 1061 { r.left, height - r.top }, 1062 { r.left, height - r.bottom }, 1063 { r.right, height - r.bottom }, 1064 { r.right, height - r.top } 1065 }; 1066 glVertexPointer(2, GL_FLOAT, 0, vertices); 1067 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1068 } 1069 1070 hw.flip(mSwapRegion); 1071 1072 if (mDebugRegion > 1) 1073 usleep(mDebugRegion * 1000); 1074 1075 glEnable(GL_SCISSOR_TEST); 1076} 1077 1078void SurfaceFlinger::drawWormhole() const 1079{ 1080 const Region region(mWormholeRegion.intersect(mDirtyRegion)); 1081 if (region.isEmpty()) 1082 return; 1083 1084 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1085 const int32_t width = hw.getWidth(); 1086 const int32_t height = hw.getHeight(); 1087 1088 if (CC_LIKELY(!mDebugBackground)) { 1089 glClearColor(0,0,0,0); 1090 Region::const_iterator it = region.begin(); 1091 Region::const_iterator const end = region.end(); 1092 while (it != end) { 1093 const Rect& r = *it++; 1094 const GLint sy = height - (r.top + r.height()); 1095 glScissor(r.left, sy, r.width(), r.height()); 1096 glClear(GL_COLOR_BUFFER_BIT); 1097 } 1098 } else { 1099 const GLshort vertices[][2] = { { 0, 0 }, { width, 0 }, 1100 { width, height }, { 0, height } }; 1101 const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } }; 1102 1103 glVertexPointer(2, GL_SHORT, 0, vertices); 1104 glTexCoordPointer(2, GL_SHORT, 0, tcoords); 1105 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1106 1107 glDisable(GL_TEXTURE_EXTERNAL_OES); 1108 glEnable(GL_TEXTURE_2D); 1109 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 1110 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1111 glMatrixMode(GL_TEXTURE); 1112 glLoadIdentity(); 1113 1114 glDisable(GL_BLEND); 1115 1116 glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1); 1117 Region::const_iterator it = region.begin(); 1118 Region::const_iterator const end = region.end(); 1119 while (it != end) { 1120 const Rect& r = *it++; 1121 const GLint sy = height - (r.top + r.height()); 1122 glScissor(r.left, sy, r.width(), r.height()); 1123 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1124 } 1125 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1126 glDisable(GL_TEXTURE_2D); 1127 glLoadIdentity(); 1128 glMatrixMode(GL_MODELVIEW); 1129 } 1130} 1131 1132status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer) 1133{ 1134 Mutex::Autolock _l(mStateLock); 1135 addLayer_l(layer); 1136 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1137 return NO_ERROR; 1138} 1139 1140status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer) 1141{ 1142 ssize_t i = mCurrentState.layersSortedByZ.add(layer); 1143 return (i < 0) ? status_t(i) : status_t(NO_ERROR); 1144} 1145 1146ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client, 1147 const sp<LayerBaseClient>& lbc) 1148{ 1149 // attach this layer to the client 1150 size_t name = client->attachLayer(lbc); 1151 1152 Mutex::Autolock _l(mStateLock); 1153 1154 // add this layer to the current state list 1155 addLayer_l(lbc); 1156 1157 return ssize_t(name); 1158} 1159 1160status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer) 1161{ 1162 Mutex::Autolock _l(mStateLock); 1163 status_t err = purgatorizeLayer_l(layer); 1164 if (err == NO_ERROR) 1165 setTransactionFlags(eTransactionNeeded); 1166 return err; 1167} 1168 1169status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase) 1170{ 1171 sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient()); 1172 if (lbc != 0) { 1173 mLayerMap.removeItem( lbc->getSurfaceBinder() ); 1174 } 1175 ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase); 1176 if (index >= 0) { 1177 mLayersRemoved = true; 1178 return NO_ERROR; 1179 } 1180 return status_t(index); 1181} 1182 1183status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase) 1184{ 1185 // First add the layer to the purgatory list, which makes sure it won't 1186 // go away, then remove it from the main list (through a transaction). 1187 ssize_t err = removeLayer_l(layerBase); 1188 if (err >= 0) { 1189 mLayerPurgatory.add(layerBase); 1190 } 1191 1192 mLayersPendingRemoval.push(layerBase); 1193 1194 // it's possible that we don't find a layer, because it might 1195 // have been destroyed already -- this is not technically an error 1196 // from the user because there is a race between Client::destroySurface(), 1197 // ~Client() and ~ISurface(). 1198 return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err; 1199} 1200 1201status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer) 1202{ 1203 layer->forceVisibilityTransaction(); 1204 setTransactionFlags(eTraversalNeeded); 1205 return NO_ERROR; 1206} 1207 1208uint32_t SurfaceFlinger::peekTransactionFlags(uint32_t flags) 1209{ 1210 return android_atomic_release_load(&mTransactionFlags); 1211} 1212 1213uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags) 1214{ 1215 return android_atomic_and(~flags, &mTransactionFlags) & flags; 1216} 1217 1218uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags) 1219{ 1220 uint32_t old = android_atomic_or(flags, &mTransactionFlags); 1221 if ((old & flags)==0) { // wake the server up 1222 signalTransaction(); 1223 } 1224 return old; 1225} 1226 1227 1228void SurfaceFlinger::setTransactionState(const Vector<ComposerState>& state, 1229 int orientation, uint32_t flags) { 1230 Mutex::Autolock _l(mStateLock); 1231 1232 uint32_t transactionFlags = 0; 1233 if (mCurrentState.orientation != orientation) { 1234 if (uint32_t(orientation)<=eOrientation270 || orientation==42) { 1235 mCurrentState.orientation = orientation; 1236 transactionFlags |= eTransactionNeeded; 1237 } else if (orientation != eOrientationUnchanged) { 1238 ALOGW("setTransactionState: ignoring unrecognized orientation: %d", 1239 orientation); 1240 } 1241 } 1242 1243 const size_t count = state.size(); 1244 for (size_t i=0 ; i<count ; i++) { 1245 const ComposerState& s(state[i]); 1246 sp<Client> client( static_cast<Client *>(s.client.get()) ); 1247 transactionFlags |= setClientStateLocked(client, s.state); 1248 } 1249 1250 if (transactionFlags) { 1251 // this triggers the transaction 1252 setTransactionFlags(transactionFlags); 1253 1254 // if this is a synchronous transaction, wait for it to take effect 1255 // before returning. 1256 if (flags & eSynchronous) { 1257 mTransationPending = true; 1258 } 1259 while (mTransationPending) { 1260 status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5)); 1261 if (CC_UNLIKELY(err != NO_ERROR)) { 1262 // just in case something goes wrong in SF, return to the 1263 // called after a few seconds. 1264 ALOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!"); 1265 mTransationPending = false; 1266 break; 1267 } 1268 } 1269 } 1270} 1271 1272sp<ISurface> SurfaceFlinger::createSurface( 1273 ISurfaceComposerClient::surface_data_t* params, 1274 const String8& name, 1275 const sp<Client>& client, 1276 DisplayID d, uint32_t w, uint32_t h, PixelFormat format, 1277 uint32_t flags) 1278{ 1279 sp<LayerBaseClient> layer; 1280 sp<ISurface> surfaceHandle; 1281 1282 if (int32_t(w|h) < 0) { 1283 ALOGE("createSurface() failed, w or h is negative (w=%d, h=%d)", 1284 int(w), int(h)); 1285 return surfaceHandle; 1286 } 1287 1288 //ALOGD("createSurface for (%d x %d), name=%s", w, h, name.string()); 1289 sp<Layer> normalLayer; 1290 switch (flags & eFXSurfaceMask) { 1291 case eFXSurfaceNormal: 1292 normalLayer = createNormalSurface(client, d, w, h, flags, format); 1293 layer = normalLayer; 1294 break; 1295 case eFXSurfaceBlur: 1296 // for now we treat Blur as Dim, until we can implement it 1297 // efficiently. 1298 case eFXSurfaceDim: 1299 layer = createDimSurface(client, d, w, h, flags); 1300 break; 1301 case eFXSurfaceScreenshot: 1302 layer = createScreenshotSurface(client, d, w, h, flags); 1303 break; 1304 } 1305 1306 if (layer != 0) { 1307 layer->initStates(w, h, flags); 1308 layer->setName(name); 1309 ssize_t token = addClientLayer(client, layer); 1310 1311 surfaceHandle = layer->getSurface(); 1312 if (surfaceHandle != 0) { 1313 params->token = token; 1314 params->identity = layer->getIdentity(); 1315 if (normalLayer != 0) { 1316 Mutex::Autolock _l(mStateLock); 1317 mLayerMap.add(layer->getSurfaceBinder(), normalLayer); 1318 } 1319 } 1320 1321 setTransactionFlags(eTransactionNeeded); 1322 } 1323 1324 return surfaceHandle; 1325} 1326 1327sp<Layer> SurfaceFlinger::createNormalSurface( 1328 const sp<Client>& client, DisplayID display, 1329 uint32_t w, uint32_t h, uint32_t flags, 1330 PixelFormat& format) 1331{ 1332 // initialize the surfaces 1333 switch (format) { // TODO: take h/w into account 1334 case PIXEL_FORMAT_TRANSPARENT: 1335 case PIXEL_FORMAT_TRANSLUCENT: 1336 format = PIXEL_FORMAT_RGBA_8888; 1337 break; 1338 case PIXEL_FORMAT_OPAQUE: 1339#ifdef NO_RGBX_8888 1340 format = PIXEL_FORMAT_RGB_565; 1341#else 1342 format = PIXEL_FORMAT_RGBX_8888; 1343#endif 1344 break; 1345 } 1346 1347#ifdef NO_RGBX_8888 1348 if (format == PIXEL_FORMAT_RGBX_8888) 1349 format = PIXEL_FORMAT_RGBA_8888; 1350#endif 1351 1352 sp<Layer> layer = new Layer(this, display, client); 1353 status_t err = layer->setBuffers(w, h, format, flags); 1354 if (CC_LIKELY(err != NO_ERROR)) { 1355 ALOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err)); 1356 layer.clear(); 1357 } 1358 return layer; 1359} 1360 1361sp<LayerDim> SurfaceFlinger::createDimSurface( 1362 const sp<Client>& client, DisplayID display, 1363 uint32_t w, uint32_t h, uint32_t flags) 1364{ 1365 sp<LayerDim> layer = new LayerDim(this, display, client); 1366 return layer; 1367} 1368 1369sp<LayerScreenshot> SurfaceFlinger::createScreenshotSurface( 1370 const sp<Client>& client, DisplayID display, 1371 uint32_t w, uint32_t h, uint32_t flags) 1372{ 1373 sp<LayerScreenshot> layer = new LayerScreenshot(this, display, client); 1374 return layer; 1375} 1376 1377status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid) 1378{ 1379 /* 1380 * called by the window manager, when a surface should be marked for 1381 * destruction. 1382 * 1383 * The surface is removed from the current and drawing lists, but placed 1384 * in the purgatory queue, so it's not destroyed right-away (we need 1385 * to wait for all client's references to go away first). 1386 */ 1387 1388 status_t err = NAME_NOT_FOUND; 1389 Mutex::Autolock _l(mStateLock); 1390 sp<LayerBaseClient> layer = client->getLayerUser(sid); 1391 if (layer != 0) { 1392 err = purgatorizeLayer_l(layer); 1393 if (err == NO_ERROR) { 1394 setTransactionFlags(eTransactionNeeded); 1395 } 1396 } 1397 return err; 1398} 1399 1400status_t SurfaceFlinger::destroySurface(const wp<LayerBaseClient>& layer) 1401{ 1402 // called by ~ISurface() when all references are gone 1403 status_t err = NO_ERROR; 1404 sp<LayerBaseClient> l(layer.promote()); 1405 if (l != NULL) { 1406 Mutex::Autolock _l(mStateLock); 1407 err = removeLayer_l(l); 1408 if (err == NAME_NOT_FOUND) { 1409 // The surface wasn't in the current list, which means it was 1410 // removed already, which means it is in the purgatory, 1411 // and need to be removed from there. 1412 ssize_t idx = mLayerPurgatory.remove(l); 1413 ALOGE_IF(idx < 0, 1414 "layer=%p is not in the purgatory list", l.get()); 1415 } 1416 ALOGE_IF(err<0 && err != NAME_NOT_FOUND, 1417 "error removing layer=%p (%s)", l.get(), strerror(-err)); 1418 } 1419 return err; 1420} 1421 1422uint32_t SurfaceFlinger::setClientStateLocked( 1423 const sp<Client>& client, 1424 const layer_state_t& s) 1425{ 1426 uint32_t flags = 0; 1427 sp<LayerBaseClient> layer(client->getLayerUser(s.surface)); 1428 if (layer != 0) { 1429 const uint32_t what = s.what; 1430 if (what & ePositionChanged) { 1431 if (layer->setPosition(s.x, s.y)) 1432 flags |= eTraversalNeeded; 1433 } 1434 if (what & eLayerChanged) { 1435 ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer); 1436 if (layer->setLayer(s.z)) { 1437 mCurrentState.layersSortedByZ.removeAt(idx); 1438 mCurrentState.layersSortedByZ.add(layer); 1439 // we need traversal (state changed) 1440 // AND transaction (list changed) 1441 flags |= eTransactionNeeded|eTraversalNeeded; 1442 } 1443 } 1444 if (what & eSizeChanged) { 1445 if (layer->setSize(s.w, s.h)) { 1446 flags |= eTraversalNeeded; 1447 } 1448 } 1449 if (what & eAlphaChanged) { 1450 if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f))) 1451 flags |= eTraversalNeeded; 1452 } 1453 if (what & eMatrixChanged) { 1454 if (layer->setMatrix(s.matrix)) 1455 flags |= eTraversalNeeded; 1456 } 1457 if (what & eTransparentRegionChanged) { 1458 if (layer->setTransparentRegionHint(s.transparentRegion)) 1459 flags |= eTraversalNeeded; 1460 } 1461 if (what & eVisibilityChanged) { 1462 if (layer->setFlags(s.flags, s.mask)) 1463 flags |= eTraversalNeeded; 1464 } 1465 } 1466 return flags; 1467} 1468 1469void SurfaceFlinger::screenReleased(int dpy) 1470{ 1471 // this may be called by a signal handler, we can't do too much in here 1472 android_atomic_or(eConsoleReleased, &mConsoleSignals); 1473 signalTransaction(); 1474} 1475 1476void SurfaceFlinger::screenAcquired(int dpy) 1477{ 1478 // this may be called by a signal handler, we can't do too much in here 1479 android_atomic_or(eConsoleAcquired, &mConsoleSignals); 1480 signalTransaction(); 1481} 1482 1483status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args) 1484{ 1485 const size_t SIZE = 4096; 1486 char buffer[SIZE]; 1487 String8 result; 1488 1489 if (!PermissionCache::checkCallingPermission(sDump)) { 1490 snprintf(buffer, SIZE, "Permission Denial: " 1491 "can't dump SurfaceFlinger from pid=%d, uid=%d\n", 1492 IPCThreadState::self()->getCallingPid(), 1493 IPCThreadState::self()->getCallingUid()); 1494 result.append(buffer); 1495 } else { 1496 // Try to get the main lock, but don't insist if we can't 1497 // (this would indicate SF is stuck, but we want to be able to 1498 // print something in dumpsys). 1499 int retry = 3; 1500 while (mStateLock.tryLock()<0 && --retry>=0) { 1501 usleep(1000000); 1502 } 1503 const bool locked(retry >= 0); 1504 if (!locked) { 1505 snprintf(buffer, SIZE, 1506 "SurfaceFlinger appears to be unresponsive, " 1507 "dumping anyways (no locks held)\n"); 1508 result.append(buffer); 1509 } 1510 1511 bool dumpAll = true; 1512 size_t index = 0; 1513 size_t numArgs = args.size(); 1514 if (numArgs) { 1515 dumpAll = false; 1516 1517 if ((index < numArgs) && 1518 (args[index] == String16("--list"))) { 1519 index++; 1520 listLayersLocked(args, index, result, buffer, SIZE); 1521 } 1522 1523 if ((index < numArgs) && 1524 (args[index] == String16("--latency"))) { 1525 index++; 1526 dumpStatsLocked(args, index, result, buffer, SIZE); 1527 } 1528 1529 if ((index < numArgs) && 1530 (args[index] == String16("--latency-clear"))) { 1531 index++; 1532 clearStatsLocked(args, index, result, buffer, SIZE); 1533 } 1534 } 1535 1536 if (dumpAll) { 1537 dumpAllLocked(result, buffer, SIZE); 1538 } 1539 1540 if (locked) { 1541 mStateLock.unlock(); 1542 } 1543 } 1544 write(fd, result.string(), result.size()); 1545 return NO_ERROR; 1546} 1547 1548void SurfaceFlinger::listLayersLocked(const Vector<String16>& args, size_t& index, 1549 String8& result, char* buffer, size_t SIZE) const 1550{ 1551 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1552 const size_t count = currentLayers.size(); 1553 for (size_t i=0 ; i<count ; i++) { 1554 const sp<LayerBase>& layer(currentLayers[i]); 1555 snprintf(buffer, SIZE, "%s\n", layer->getName().string()); 1556 result.append(buffer); 1557 } 1558} 1559 1560void SurfaceFlinger::dumpStatsLocked(const Vector<String16>& args, size_t& index, 1561 String8& result, char* buffer, size_t SIZE) const 1562{ 1563 String8 name; 1564 if (index < args.size()) { 1565 name = String8(args[index]); 1566 index++; 1567 } 1568 1569 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1570 const size_t count = currentLayers.size(); 1571 for (size_t i=0 ; i<count ; i++) { 1572 const sp<LayerBase>& layer(currentLayers[i]); 1573 if (name.isEmpty()) { 1574 snprintf(buffer, SIZE, "%s\n", layer->getName().string()); 1575 result.append(buffer); 1576 } 1577 if (name.isEmpty() || (name == layer->getName())) { 1578 layer->dumpStats(result, buffer, SIZE); 1579 } 1580 } 1581} 1582 1583void SurfaceFlinger::clearStatsLocked(const Vector<String16>& args, size_t& index, 1584 String8& result, char* buffer, size_t SIZE) const 1585{ 1586 String8 name; 1587 if (index < args.size()) { 1588 name = String8(args[index]); 1589 index++; 1590 } 1591 1592 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1593 const size_t count = currentLayers.size(); 1594 for (size_t i=0 ; i<count ; i++) { 1595 const sp<LayerBase>& layer(currentLayers[i]); 1596 if (name.isEmpty() || (name == layer->getName())) { 1597 layer->clearStats(); 1598 } 1599 } 1600} 1601 1602void SurfaceFlinger::dumpAllLocked( 1603 String8& result, char* buffer, size_t SIZE) const 1604{ 1605 // figure out if we're stuck somewhere 1606 const nsecs_t now = systemTime(); 1607 const nsecs_t inSwapBuffers(mDebugInSwapBuffers); 1608 const nsecs_t inTransaction(mDebugInTransaction); 1609 nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0; 1610 nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0; 1611 1612 /* 1613 * Dump the visible layer list 1614 */ 1615 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1616 const size_t count = currentLayers.size(); 1617 snprintf(buffer, SIZE, "Visible layers (count = %d)\n", count); 1618 result.append(buffer); 1619 for (size_t i=0 ; i<count ; i++) { 1620 const sp<LayerBase>& layer(currentLayers[i]); 1621 layer->dump(result, buffer, SIZE); 1622 } 1623 1624 /* 1625 * Dump the layers in the purgatory 1626 */ 1627 1628 const size_t purgatorySize = mLayerPurgatory.size(); 1629 snprintf(buffer, SIZE, "Purgatory state (%d entries)\n", purgatorySize); 1630 result.append(buffer); 1631 for (size_t i=0 ; i<purgatorySize ; i++) { 1632 const sp<LayerBase>& layer(mLayerPurgatory.itemAt(i)); 1633 layer->shortDump(result, buffer, SIZE); 1634 } 1635 1636 /* 1637 * Dump SurfaceFlinger global state 1638 */ 1639 1640 snprintf(buffer, SIZE, "SurfaceFlinger global state:\n"); 1641 result.append(buffer); 1642 1643 const GLExtensions& extensions(GLExtensions::getInstance()); 1644 snprintf(buffer, SIZE, "GLES: %s, %s, %s\n", 1645 extensions.getVendor(), 1646 extensions.getRenderer(), 1647 extensions.getVersion()); 1648 result.append(buffer); 1649 1650 snprintf(buffer, SIZE, "EGL : %s\n", 1651 eglQueryString(graphicPlane(0).getEGLDisplay(), 1652 EGL_VERSION_HW_ANDROID)); 1653 result.append(buffer); 1654 1655 snprintf(buffer, SIZE, "EXTS: %s\n", extensions.getExtension()); 1656 result.append(buffer); 1657 1658 mWormholeRegion.dump(result, "WormholeRegion"); 1659 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1660 snprintf(buffer, SIZE, 1661 " orientation=%d, canDraw=%d\n", 1662 mCurrentState.orientation, hw.canDraw()); 1663 result.append(buffer); 1664 snprintf(buffer, SIZE, 1665 " last eglSwapBuffers() time: %f us\n" 1666 " last transaction time : %f us\n" 1667 " transaction-flags : %08x\n" 1668 " refresh-rate : %f fps\n" 1669 " x-dpi : %f\n" 1670 " y-dpi : %f\n", 1671 mLastSwapBufferTime/1000.0, 1672 mLastTransactionTime/1000.0, 1673 mTransactionFlags, 1674 hw.getRefreshRate(), 1675 hw.getDpiX(), 1676 hw.getDpiY()); 1677 result.append(buffer); 1678 1679 snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n", 1680 inSwapBuffersDuration/1000.0); 1681 result.append(buffer); 1682 1683 snprintf(buffer, SIZE, " transaction time: %f us\n", 1684 inTransactionDuration/1000.0); 1685 result.append(buffer); 1686 1687 /* 1688 * VSYNC state 1689 */ 1690 mEventThread->dump(result, buffer, SIZE); 1691 1692 /* 1693 * Dump HWComposer state 1694 */ 1695 HWComposer& hwc(hw.getHwComposer()); 1696 snprintf(buffer, SIZE, "h/w composer state:\n"); 1697 result.append(buffer); 1698 snprintf(buffer, SIZE, " h/w composer %s and %s\n", 1699 hwc.initCheck()==NO_ERROR ? "present" : "not present", 1700 (mDebugDisableHWC || mDebugRegion) ? "disabled" : "enabled"); 1701 result.append(buffer); 1702 hwc.dump(result, buffer, SIZE, mVisibleLayersSortedByZ); 1703 1704 /* 1705 * Dump gralloc state 1706 */ 1707 const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get()); 1708 alloc.dump(result); 1709 hw.dump(result); 1710} 1711 1712status_t SurfaceFlinger::onTransact( 1713 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1714{ 1715 switch (code) { 1716 case CREATE_CONNECTION: 1717 case SET_TRANSACTION_STATE: 1718 case SET_ORIENTATION: 1719 case BOOT_FINISHED: 1720 case TURN_ELECTRON_BEAM_OFF: 1721 case TURN_ELECTRON_BEAM_ON: 1722 { 1723 // codes that require permission check 1724 IPCThreadState* ipc = IPCThreadState::self(); 1725 const int pid = ipc->getCallingPid(); 1726 const int uid = ipc->getCallingUid(); 1727 if ((uid != AID_GRAPHICS) && 1728 !PermissionCache::checkPermission(sAccessSurfaceFlinger, pid, uid)) { 1729 ALOGE("Permission Denial: " 1730 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1731 return PERMISSION_DENIED; 1732 } 1733 break; 1734 } 1735 case CAPTURE_SCREEN: 1736 { 1737 // codes that require permission check 1738 IPCThreadState* ipc = IPCThreadState::self(); 1739 const int pid = ipc->getCallingPid(); 1740 const int uid = ipc->getCallingUid(); 1741 if ((uid != AID_GRAPHICS) && 1742 !PermissionCache::checkPermission(sReadFramebuffer, pid, uid)) { 1743 ALOGE("Permission Denial: " 1744 "can't read framebuffer pid=%d, uid=%d", pid, uid); 1745 return PERMISSION_DENIED; 1746 } 1747 break; 1748 } 1749 } 1750 1751 status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags); 1752 if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) { 1753 CHECK_INTERFACE(ISurfaceComposer, data, reply); 1754 if (CC_UNLIKELY(!PermissionCache::checkCallingPermission(sHardwareTest))) { 1755 IPCThreadState* ipc = IPCThreadState::self(); 1756 const int pid = ipc->getCallingPid(); 1757 const int uid = ipc->getCallingUid(); 1758 ALOGE("Permission Denial: " 1759 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1760 return PERMISSION_DENIED; 1761 } 1762 int n; 1763 switch (code) { 1764 case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE 1765 case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE 1766 return NO_ERROR; 1767 case 1002: // SHOW_UPDATES 1768 n = data.readInt32(); 1769 mDebugRegion = n ? n : (mDebugRegion ? 0 : 1); 1770 invalidateHwcGeometry(); 1771 repaintEverything(); 1772 return NO_ERROR; 1773 case 1003: // SHOW_BACKGROUND 1774 n = data.readInt32(); 1775 mDebugBackground = n ? 1 : 0; 1776 return NO_ERROR; 1777 case 1004:{ // repaint everything 1778 repaintEverything(); 1779 return NO_ERROR; 1780 } 1781 case 1005:{ // force transaction 1782 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1783 return NO_ERROR; 1784 } 1785 case 1006:{ // send empty update 1786 signalRefresh(); 1787 return NO_ERROR; 1788 } 1789 case 1008: // toggle use of hw composer 1790 n = data.readInt32(); 1791 mDebugDisableHWC = n ? 1 : 0; 1792 invalidateHwcGeometry(); 1793 repaintEverything(); 1794 return NO_ERROR; 1795 case 1009: // toggle use of transform hint 1796 n = data.readInt32(); 1797 mDebugDisableTransformHint = n ? 1 : 0; 1798 invalidateHwcGeometry(); 1799 repaintEverything(); 1800 return NO_ERROR; 1801 case 1010: // interrogate. 1802 reply->writeInt32(0); 1803 reply->writeInt32(0); 1804 reply->writeInt32(mDebugRegion); 1805 reply->writeInt32(mDebugBackground); 1806 reply->writeInt32(mDebugDisableHWC); 1807 return NO_ERROR; 1808 case 1013: { 1809 Mutex::Autolock _l(mStateLock); 1810 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1811 reply->writeInt32(hw.getPageFlipCount()); 1812 } 1813 return NO_ERROR; 1814 } 1815 } 1816 return err; 1817} 1818 1819void SurfaceFlinger::repaintEverything() { 1820 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1821 const Rect bounds(hw.getBounds()); 1822 setInvalidateRegion(Region(bounds)); 1823 signalTransaction(); 1824} 1825 1826void SurfaceFlinger::setInvalidateRegion(const Region& reg) { 1827 Mutex::Autolock _l(mInvalidateLock); 1828 mInvalidateRegion = reg; 1829} 1830 1831Region SurfaceFlinger::getAndClearInvalidateRegion() { 1832 Mutex::Autolock _l(mInvalidateLock); 1833 Region reg(mInvalidateRegion); 1834 mInvalidateRegion.clear(); 1835 return reg; 1836} 1837 1838// --------------------------------------------------------------------------- 1839 1840status_t SurfaceFlinger::renderScreenToTexture(DisplayID dpy, 1841 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1842{ 1843 Mutex::Autolock _l(mStateLock); 1844 return renderScreenToTextureLocked(dpy, textureName, uOut, vOut); 1845} 1846 1847status_t SurfaceFlinger::renderScreenToTextureLocked(DisplayID dpy, 1848 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1849{ 1850 if (!GLExtensions::getInstance().haveFramebufferObject()) 1851 return INVALID_OPERATION; 1852 1853 // get screen geometry 1854 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 1855 const uint32_t hw_w = hw.getWidth(); 1856 const uint32_t hw_h = hw.getHeight(); 1857 GLfloat u = 1; 1858 GLfloat v = 1; 1859 1860 // make sure to clear all GL error flags 1861 while ( glGetError() != GL_NO_ERROR ) ; 1862 1863 // create a FBO 1864 GLuint name, tname; 1865 glGenTextures(1, &tname); 1866 glBindTexture(GL_TEXTURE_2D, tname); 1867 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1868 hw_w, hw_h, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1869 if (glGetError() != GL_NO_ERROR) { 1870 while ( glGetError() != GL_NO_ERROR ) ; 1871 GLint tw = (2 << (31 - clz(hw_w))); 1872 GLint th = (2 << (31 - clz(hw_h))); 1873 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1874 tw, th, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1875 u = GLfloat(hw_w) / tw; 1876 v = GLfloat(hw_h) / th; 1877 } 1878 glGenFramebuffersOES(1, &name); 1879 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 1880 glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, 1881 GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0); 1882 1883 // redraw the screen entirely... 1884 glDisable(GL_TEXTURE_EXTERNAL_OES); 1885 glDisable(GL_TEXTURE_2D); 1886 glDisable(GL_SCISSOR_TEST); 1887 glClearColor(0,0,0,1); 1888 glClear(GL_COLOR_BUFFER_BIT); 1889 glEnable(GL_SCISSOR_TEST); 1890 glMatrixMode(GL_MODELVIEW); 1891 glLoadIdentity(); 1892 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1893 const size_t count = layers.size(); 1894 for (size_t i=0 ; i<count ; ++i) { 1895 const sp<LayerBase>& layer(layers[i]); 1896 layer->drawForSreenShot(); 1897 } 1898 1899 hw.compositionComplete(); 1900 1901 // back to main framebuffer 1902 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1903 glDisable(GL_SCISSOR_TEST); 1904 glDeleteFramebuffersOES(1, &name); 1905 1906 *textureName = tname; 1907 *uOut = u; 1908 *vOut = v; 1909 return NO_ERROR; 1910} 1911 1912// --------------------------------------------------------------------------- 1913 1914status_t SurfaceFlinger::electronBeamOffAnimationImplLocked() 1915{ 1916 // get screen geometry 1917 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1918 const uint32_t hw_w = hw.getWidth(); 1919 const uint32_t hw_h = hw.getHeight(); 1920 const Region screenBounds(hw.getBounds()); 1921 1922 GLfloat u, v; 1923 GLuint tname; 1924 status_t result = renderScreenToTextureLocked(0, &tname, &u, &v); 1925 if (result != NO_ERROR) { 1926 return result; 1927 } 1928 1929 GLfloat vtx[8]; 1930 const GLfloat texCoords[4][2] = { {0,0}, {0,v}, {u,v}, {u,0} }; 1931 glBindTexture(GL_TEXTURE_2D, tname); 1932 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1933 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1934 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1935 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); 1936 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); 1937 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1938 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1939 glVertexPointer(2, GL_FLOAT, 0, vtx); 1940 1941 /* 1942 * Texture coordinate mapping 1943 * 1944 * u 1945 * 1 +----------+---+ 1946 * | | | | image is inverted 1947 * | V | | w.r.t. the texture 1948 * 1-v +----------+ | coordinates 1949 * | | 1950 * | | 1951 * | | 1952 * 0 +--------------+ 1953 * 0 1 1954 * 1955 */ 1956 1957 class s_curve_interpolator { 1958 const float nbFrames, s, v; 1959 public: 1960 s_curve_interpolator(int nbFrames, float s) 1961 : nbFrames(1.0f / (nbFrames-1)), s(s), 1962 v(1.0f + expf(-s + 0.5f*s)) { 1963 } 1964 float operator()(int f) { 1965 const float x = f * nbFrames; 1966 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1967 } 1968 }; 1969 1970 class v_stretch { 1971 const GLfloat hw_w, hw_h; 1972 public: 1973 v_stretch(uint32_t hw_w, uint32_t hw_h) 1974 : hw_w(hw_w), hw_h(hw_h) { 1975 } 1976 void operator()(GLfloat* vtx, float v) { 1977 const GLfloat w = hw_w + (hw_w * v); 1978 const GLfloat h = hw_h - (hw_h * v); 1979 const GLfloat x = (hw_w - w) * 0.5f; 1980 const GLfloat y = (hw_h - h) * 0.5f; 1981 vtx[0] = x; vtx[1] = y; 1982 vtx[2] = x; vtx[3] = y + h; 1983 vtx[4] = x + w; vtx[5] = y + h; 1984 vtx[6] = x + w; vtx[7] = y; 1985 } 1986 }; 1987 1988 class h_stretch { 1989 const GLfloat hw_w, hw_h; 1990 public: 1991 h_stretch(uint32_t hw_w, uint32_t hw_h) 1992 : hw_w(hw_w), hw_h(hw_h) { 1993 } 1994 void operator()(GLfloat* vtx, float v) { 1995 const GLfloat w = hw_w - (hw_w * v); 1996 const GLfloat h = 1.0f; 1997 const GLfloat x = (hw_w - w) * 0.5f; 1998 const GLfloat y = (hw_h - h) * 0.5f; 1999 vtx[0] = x; vtx[1] = y; 2000 vtx[2] = x; vtx[3] = y + h; 2001 vtx[4] = x + w; vtx[5] = y + h; 2002 vtx[6] = x + w; vtx[7] = y; 2003 } 2004 }; 2005 2006 // the full animation is 24 frames 2007 char value[PROPERTY_VALUE_MAX]; 2008 property_get("debug.sf.electron_frames", value, "24"); 2009 int nbFrames = (atoi(value) + 1) >> 1; 2010 if (nbFrames <= 0) // just in case 2011 nbFrames = 24; 2012 2013 s_curve_interpolator itr(nbFrames, 7.5f); 2014 s_curve_interpolator itg(nbFrames, 8.0f); 2015 s_curve_interpolator itb(nbFrames, 8.5f); 2016 2017 v_stretch vverts(hw_w, hw_h); 2018 2019 glMatrixMode(GL_TEXTURE); 2020 glLoadIdentity(); 2021 glMatrixMode(GL_MODELVIEW); 2022 glLoadIdentity(); 2023 2024 glEnable(GL_BLEND); 2025 glBlendFunc(GL_ONE, GL_ONE); 2026 for (int i=0 ; i<nbFrames ; i++) { 2027 float x, y, w, h; 2028 const float vr = itr(i); 2029 const float vg = itg(i); 2030 const float vb = itb(i); 2031 2032 // clear screen 2033 glColorMask(1,1,1,1); 2034 glClear(GL_COLOR_BUFFER_BIT); 2035 glEnable(GL_TEXTURE_2D); 2036 2037 // draw the red plane 2038 vverts(vtx, vr); 2039 glColorMask(1,0,0,1); 2040 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2041 2042 // draw the green plane 2043 vverts(vtx, vg); 2044 glColorMask(0,1,0,1); 2045 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2046 2047 // draw the blue plane 2048 vverts(vtx, vb); 2049 glColorMask(0,0,1,1); 2050 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2051 2052 // draw the white highlight (we use the last vertices) 2053 glDisable(GL_TEXTURE_2D); 2054 glColorMask(1,1,1,1); 2055 glColor4f(vg, vg, vg, 1); 2056 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2057 hw.flip(screenBounds); 2058 } 2059 2060 h_stretch hverts(hw_w, hw_h); 2061 glDisable(GL_BLEND); 2062 glDisable(GL_TEXTURE_2D); 2063 glColorMask(1,1,1,1); 2064 for (int i=0 ; i<nbFrames ; i++) { 2065 const float v = itg(i); 2066 hverts(vtx, v); 2067 glClear(GL_COLOR_BUFFER_BIT); 2068 glColor4f(1-v, 1-v, 1-v, 1); 2069 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2070 hw.flip(screenBounds); 2071 } 2072 2073 glColorMask(1,1,1,1); 2074 glEnable(GL_SCISSOR_TEST); 2075 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 2076 glDeleteTextures(1, &tname); 2077 glDisable(GL_TEXTURE_2D); 2078 glDisable(GL_BLEND); 2079 return NO_ERROR; 2080} 2081 2082status_t SurfaceFlinger::electronBeamOnAnimationImplLocked() 2083{ 2084 status_t result = PERMISSION_DENIED; 2085 2086 if (!GLExtensions::getInstance().haveFramebufferObject()) 2087 return INVALID_OPERATION; 2088 2089 2090 // get screen geometry 2091 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 2092 const uint32_t hw_w = hw.getWidth(); 2093 const uint32_t hw_h = hw.getHeight(); 2094 const Region screenBounds(hw.bounds()); 2095 2096 GLfloat u, v; 2097 GLuint tname; 2098 result = renderScreenToTextureLocked(0, &tname, &u, &v); 2099 if (result != NO_ERROR) { 2100 return result; 2101 } 2102 2103 GLfloat vtx[8]; 2104 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 2105 glBindTexture(GL_TEXTURE_2D, tname); 2106 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 2107 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 2108 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 2109 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); 2110 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); 2111 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 2112 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 2113 glVertexPointer(2, GL_FLOAT, 0, vtx); 2114 2115 class s_curve_interpolator { 2116 const float nbFrames, s, v; 2117 public: 2118 s_curve_interpolator(int nbFrames, float s) 2119 : nbFrames(1.0f / (nbFrames-1)), s(s), 2120 v(1.0f + expf(-s + 0.5f*s)) { 2121 } 2122 float operator()(int f) { 2123 const float x = f * nbFrames; 2124 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 2125 } 2126 }; 2127 2128 class v_stretch { 2129 const GLfloat hw_w, hw_h; 2130 public: 2131 v_stretch(uint32_t hw_w, uint32_t hw_h) 2132 : hw_w(hw_w), hw_h(hw_h) { 2133 } 2134 void operator()(GLfloat* vtx, float v) { 2135 const GLfloat w = hw_w + (hw_w * v); 2136 const GLfloat h = hw_h - (hw_h * v); 2137 const GLfloat x = (hw_w - w) * 0.5f; 2138 const GLfloat y = (hw_h - h) * 0.5f; 2139 vtx[0] = x; vtx[1] = y; 2140 vtx[2] = x; vtx[3] = y + h; 2141 vtx[4] = x + w; vtx[5] = y + h; 2142 vtx[6] = x + w; vtx[7] = y; 2143 } 2144 }; 2145 2146 class h_stretch { 2147 const GLfloat hw_w, hw_h; 2148 public: 2149 h_stretch(uint32_t hw_w, uint32_t hw_h) 2150 : hw_w(hw_w), hw_h(hw_h) { 2151 } 2152 void operator()(GLfloat* vtx, float v) { 2153 const GLfloat w = hw_w - (hw_w * v); 2154 const GLfloat h = 1.0f; 2155 const GLfloat x = (hw_w - w) * 0.5f; 2156 const GLfloat y = (hw_h - h) * 0.5f; 2157 vtx[0] = x; vtx[1] = y; 2158 vtx[2] = x; vtx[3] = y + h; 2159 vtx[4] = x + w; vtx[5] = y + h; 2160 vtx[6] = x + w; vtx[7] = y; 2161 } 2162 }; 2163 2164 // the full animation is 12 frames 2165 int nbFrames = 8; 2166 s_curve_interpolator itr(nbFrames, 7.5f); 2167 s_curve_interpolator itg(nbFrames, 8.0f); 2168 s_curve_interpolator itb(nbFrames, 8.5f); 2169 2170 h_stretch hverts(hw_w, hw_h); 2171 glDisable(GL_BLEND); 2172 glDisable(GL_TEXTURE_2D); 2173 glColorMask(1,1,1,1); 2174 for (int i=nbFrames-1 ; i>=0 ; i--) { 2175 const float v = itg(i); 2176 hverts(vtx, v); 2177 glClear(GL_COLOR_BUFFER_BIT); 2178 glColor4f(1-v, 1-v, 1-v, 1); 2179 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2180 hw.flip(screenBounds); 2181 } 2182 2183 nbFrames = 4; 2184 v_stretch vverts(hw_w, hw_h); 2185 glEnable(GL_BLEND); 2186 glBlendFunc(GL_ONE, GL_ONE); 2187 for (int i=nbFrames-1 ; i>=0 ; i--) { 2188 float x, y, w, h; 2189 const float vr = itr(i); 2190 const float vg = itg(i); 2191 const float vb = itb(i); 2192 2193 // clear screen 2194 glColorMask(1,1,1,1); 2195 glClear(GL_COLOR_BUFFER_BIT); 2196 glEnable(GL_TEXTURE_2D); 2197 2198 // draw the red plane 2199 vverts(vtx, vr); 2200 glColorMask(1,0,0,1); 2201 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2202 2203 // draw the green plane 2204 vverts(vtx, vg); 2205 glColorMask(0,1,0,1); 2206 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2207 2208 // draw the blue plane 2209 vverts(vtx, vb); 2210 glColorMask(0,0,1,1); 2211 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2212 2213 hw.flip(screenBounds); 2214 } 2215 2216 glColorMask(1,1,1,1); 2217 glEnable(GL_SCISSOR_TEST); 2218 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 2219 glDeleteTextures(1, &tname); 2220 glDisable(GL_TEXTURE_2D); 2221 glDisable(GL_BLEND); 2222 2223 return NO_ERROR; 2224} 2225 2226// --------------------------------------------------------------------------- 2227 2228status_t SurfaceFlinger::turnElectronBeamOffImplLocked(int32_t mode) 2229{ 2230 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2231 if (!hw.canDraw()) { 2232 // we're already off 2233 return NO_ERROR; 2234 } 2235 2236 // turn off hwc while we're doing the animation 2237 hw.getHwComposer().disable(); 2238 // and make sure to turn it back on (if needed) next time we compose 2239 invalidateHwcGeometry(); 2240 2241 if (mode & ISurfaceComposer::eElectronBeamAnimationOff) { 2242 electronBeamOffAnimationImplLocked(); 2243 } 2244 2245 // always clear the whole screen at the end of the animation 2246 glClearColor(0,0,0,1); 2247 glDisable(GL_SCISSOR_TEST); 2248 glClear(GL_COLOR_BUFFER_BIT); 2249 glEnable(GL_SCISSOR_TEST); 2250 hw.flip( Region(hw.bounds()) ); 2251 2252 return NO_ERROR; 2253} 2254 2255status_t SurfaceFlinger::turnElectronBeamOff(int32_t mode) 2256{ 2257 class MessageTurnElectronBeamOff : public MessageBase { 2258 SurfaceFlinger* flinger; 2259 int32_t mode; 2260 status_t result; 2261 public: 2262 MessageTurnElectronBeamOff(SurfaceFlinger* flinger, int32_t mode) 2263 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2264 } 2265 status_t getResult() const { 2266 return result; 2267 } 2268 virtual bool handler() { 2269 Mutex::Autolock _l(flinger->mStateLock); 2270 result = flinger->turnElectronBeamOffImplLocked(mode); 2271 return true; 2272 } 2273 }; 2274 2275 sp<MessageBase> msg = new MessageTurnElectronBeamOff(this, mode); 2276 status_t res = postMessageSync(msg); 2277 if (res == NO_ERROR) { 2278 res = static_cast<MessageTurnElectronBeamOff*>( msg.get() )->getResult(); 2279 2280 // work-around: when the power-manager calls us we activate the 2281 // animation. eventually, the "on" animation will be called 2282 // by the power-manager itself 2283 mElectronBeamAnimationMode = mode; 2284 } 2285 return res; 2286} 2287 2288// --------------------------------------------------------------------------- 2289 2290status_t SurfaceFlinger::turnElectronBeamOnImplLocked(int32_t mode) 2291{ 2292 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2293 if (hw.canDraw()) { 2294 // we're already on 2295 return NO_ERROR; 2296 } 2297 if (mode & ISurfaceComposer::eElectronBeamAnimationOn) { 2298 electronBeamOnAnimationImplLocked(); 2299 } 2300 2301 // make sure to redraw the whole screen when the animation is done 2302 mDirtyRegion.set(hw.bounds()); 2303 signalTransaction(); 2304 2305 return NO_ERROR; 2306} 2307 2308status_t SurfaceFlinger::turnElectronBeamOn(int32_t mode) 2309{ 2310 class MessageTurnElectronBeamOn : public MessageBase { 2311 SurfaceFlinger* flinger; 2312 int32_t mode; 2313 status_t result; 2314 public: 2315 MessageTurnElectronBeamOn(SurfaceFlinger* flinger, int32_t mode) 2316 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2317 } 2318 status_t getResult() const { 2319 return result; 2320 } 2321 virtual bool handler() { 2322 Mutex::Autolock _l(flinger->mStateLock); 2323 result = flinger->turnElectronBeamOnImplLocked(mode); 2324 return true; 2325 } 2326 }; 2327 2328 postMessageAsync( new MessageTurnElectronBeamOn(this, mode) ); 2329 return NO_ERROR; 2330} 2331 2332// --------------------------------------------------------------------------- 2333 2334status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy, 2335 sp<IMemoryHeap>* heap, 2336 uint32_t* w, uint32_t* h, PixelFormat* f, 2337 uint32_t sw, uint32_t sh, 2338 uint32_t minLayerZ, uint32_t maxLayerZ) 2339{ 2340 status_t result = PERMISSION_DENIED; 2341 2342 // only one display supported for now 2343 if (CC_UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2344 return BAD_VALUE; 2345 2346 if (!GLExtensions::getInstance().haveFramebufferObject()) 2347 return INVALID_OPERATION; 2348 2349 // get screen geometry 2350 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 2351 const uint32_t hw_w = hw.getWidth(); 2352 const uint32_t hw_h = hw.getHeight(); 2353 2354 if ((sw > hw_w) || (sh > hw_h)) 2355 return BAD_VALUE; 2356 2357 sw = (!sw) ? hw_w : sw; 2358 sh = (!sh) ? hw_h : sh; 2359 const size_t size = sw * sh * 4; 2360 2361 //ALOGD("screenshot: sw=%d, sh=%d, minZ=%d, maxZ=%d", 2362 // sw, sh, minLayerZ, maxLayerZ); 2363 2364 // make sure to clear all GL error flags 2365 while ( glGetError() != GL_NO_ERROR ) ; 2366 2367 // create a FBO 2368 GLuint name, tname; 2369 glGenRenderbuffersOES(1, &tname); 2370 glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname); 2371 glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh); 2372 glGenFramebuffersOES(1, &name); 2373 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 2374 glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, 2375 GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname); 2376 2377 GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES); 2378 2379 if (status == GL_FRAMEBUFFER_COMPLETE_OES) { 2380 2381 // invert everything, b/c glReadPixel() below will invert the FB 2382 glViewport(0, 0, sw, sh); 2383 glScissor(0, 0, sw, sh); 2384 glEnable(GL_SCISSOR_TEST); 2385 glMatrixMode(GL_PROJECTION); 2386 glPushMatrix(); 2387 glLoadIdentity(); 2388 glOrthof(0, hw_w, hw_h, 0, 0, 1); 2389 glMatrixMode(GL_MODELVIEW); 2390 2391 // redraw the screen entirely... 2392 glClearColor(0,0,0,1); 2393 glClear(GL_COLOR_BUFFER_BIT); 2394 2395 const LayerVector& layers(mDrawingState.layersSortedByZ); 2396 const size_t count = layers.size(); 2397 for (size_t i=0 ; i<count ; ++i) { 2398 const sp<LayerBase>& layer(layers[i]); 2399 const uint32_t flags = layer->drawingState().flags; 2400 if (!(flags & ISurfaceComposer::eLayerHidden)) { 2401 const uint32_t z = layer->drawingState().z; 2402 if (z >= minLayerZ && z <= maxLayerZ) { 2403 layer->drawForSreenShot(); 2404 } 2405 } 2406 } 2407 2408 // XXX: this is needed on tegra 2409 glEnable(GL_SCISSOR_TEST); 2410 glScissor(0, 0, sw, sh); 2411 2412 // check for errors and return screen capture 2413 if (glGetError() != GL_NO_ERROR) { 2414 // error while rendering 2415 result = INVALID_OPERATION; 2416 } else { 2417 // allocate shared memory large enough to hold the 2418 // screen capture 2419 sp<MemoryHeapBase> base( 2420 new MemoryHeapBase(size, 0, "screen-capture") ); 2421 void* const ptr = base->getBase(); 2422 if (ptr) { 2423 // capture the screen with glReadPixels() 2424 glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr); 2425 if (glGetError() == GL_NO_ERROR) { 2426 *heap = base; 2427 *w = sw; 2428 *h = sh; 2429 *f = PIXEL_FORMAT_RGBA_8888; 2430 result = NO_ERROR; 2431 } 2432 } else { 2433 result = NO_MEMORY; 2434 } 2435 } 2436 glEnable(GL_SCISSOR_TEST); 2437 glViewport(0, 0, hw_w, hw_h); 2438 glMatrixMode(GL_PROJECTION); 2439 glPopMatrix(); 2440 glMatrixMode(GL_MODELVIEW); 2441 } else { 2442 result = BAD_VALUE; 2443 } 2444 2445 // release FBO resources 2446 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 2447 glDeleteRenderbuffersOES(1, &tname); 2448 glDeleteFramebuffersOES(1, &name); 2449 2450 hw.compositionComplete(); 2451 2452 // ALOGD("screenshot: result = %s", result<0 ? strerror(result) : "OK"); 2453 2454 return result; 2455} 2456 2457 2458status_t SurfaceFlinger::captureScreen(DisplayID dpy, 2459 sp<IMemoryHeap>* heap, 2460 uint32_t* width, uint32_t* height, PixelFormat* format, 2461 uint32_t sw, uint32_t sh, 2462 uint32_t minLayerZ, uint32_t maxLayerZ) 2463{ 2464 // only one display supported for now 2465 if (CC_UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2466 return BAD_VALUE; 2467 2468 if (!GLExtensions::getInstance().haveFramebufferObject()) 2469 return INVALID_OPERATION; 2470 2471 class MessageCaptureScreen : public MessageBase { 2472 SurfaceFlinger* flinger; 2473 DisplayID dpy; 2474 sp<IMemoryHeap>* heap; 2475 uint32_t* w; 2476 uint32_t* h; 2477 PixelFormat* f; 2478 uint32_t sw; 2479 uint32_t sh; 2480 uint32_t minLayerZ; 2481 uint32_t maxLayerZ; 2482 status_t result; 2483 public: 2484 MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy, 2485 sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f, 2486 uint32_t sw, uint32_t sh, 2487 uint32_t minLayerZ, uint32_t maxLayerZ) 2488 : flinger(flinger), dpy(dpy), 2489 heap(heap), w(w), h(h), f(f), sw(sw), sh(sh), 2490 minLayerZ(minLayerZ), maxLayerZ(maxLayerZ), 2491 result(PERMISSION_DENIED) 2492 { 2493 } 2494 status_t getResult() const { 2495 return result; 2496 } 2497 virtual bool handler() { 2498 Mutex::Autolock _l(flinger->mStateLock); 2499 2500 // if we have secure windows, never allow the screen capture 2501 if (flinger->mSecureFrameBuffer) 2502 return true; 2503 2504 result = flinger->captureScreenImplLocked(dpy, 2505 heap, w, h, f, sw, sh, minLayerZ, maxLayerZ); 2506 2507 return true; 2508 } 2509 }; 2510 2511 sp<MessageBase> msg = new MessageCaptureScreen(this, 2512 dpy, heap, width, height, format, sw, sh, minLayerZ, maxLayerZ); 2513 status_t res = postMessageSync(msg); 2514 if (res == NO_ERROR) { 2515 res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult(); 2516 } 2517 return res; 2518} 2519 2520// --------------------------------------------------------------------------- 2521 2522sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const 2523{ 2524 sp<Layer> result; 2525 Mutex::Autolock _l(mStateLock); 2526 result = mLayerMap.valueFor( sur->asBinder() ).promote(); 2527 return result; 2528} 2529 2530// --------------------------------------------------------------------------- 2531 2532Client::Client(const sp<SurfaceFlinger>& flinger) 2533 : mFlinger(flinger), mNameGenerator(1) 2534{ 2535} 2536 2537Client::~Client() 2538{ 2539 const size_t count = mLayers.size(); 2540 for (size_t i=0 ; i<count ; i++) { 2541 sp<LayerBaseClient> layer(mLayers.valueAt(i).promote()); 2542 if (layer != 0) { 2543 mFlinger->removeLayer(layer); 2544 } 2545 } 2546} 2547 2548status_t Client::initCheck() const { 2549 return NO_ERROR; 2550} 2551 2552size_t Client::attachLayer(const sp<LayerBaseClient>& layer) 2553{ 2554 Mutex::Autolock _l(mLock); 2555 size_t name = mNameGenerator++; 2556 mLayers.add(name, layer); 2557 return name; 2558} 2559 2560void Client::detachLayer(const LayerBaseClient* layer) 2561{ 2562 Mutex::Autolock _l(mLock); 2563 // we do a linear search here, because this doesn't happen often 2564 const size_t count = mLayers.size(); 2565 for (size_t i=0 ; i<count ; i++) { 2566 if (mLayers.valueAt(i) == layer) { 2567 mLayers.removeItemsAt(i, 1); 2568 break; 2569 } 2570 } 2571} 2572sp<LayerBaseClient> Client::getLayerUser(int32_t i) const 2573{ 2574 Mutex::Autolock _l(mLock); 2575 sp<LayerBaseClient> lbc; 2576 wp<LayerBaseClient> layer(mLayers.valueFor(i)); 2577 if (layer != 0) { 2578 lbc = layer.promote(); 2579 ALOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i)); 2580 } 2581 return lbc; 2582} 2583 2584 2585status_t Client::onTransact( 2586 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 2587{ 2588 // these must be checked 2589 IPCThreadState* ipc = IPCThreadState::self(); 2590 const int pid = ipc->getCallingPid(); 2591 const int uid = ipc->getCallingUid(); 2592 const int self_pid = getpid(); 2593 if (CC_UNLIKELY(pid != self_pid && uid != AID_GRAPHICS && uid != 0)) { 2594 // we're called from a different process, do the real check 2595 if (!PermissionCache::checkCallingPermission(sAccessSurfaceFlinger)) 2596 { 2597 ALOGE("Permission Denial: " 2598 "can't openGlobalTransaction pid=%d, uid=%d", pid, uid); 2599 return PERMISSION_DENIED; 2600 } 2601 } 2602 return BnSurfaceComposerClient::onTransact(code, data, reply, flags); 2603} 2604 2605 2606sp<ISurface> Client::createSurface( 2607 ISurfaceComposerClient::surface_data_t* params, 2608 const String8& name, 2609 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2610 uint32_t flags) 2611{ 2612 /* 2613 * createSurface must be called from the GL thread so that it can 2614 * have access to the GL context. 2615 */ 2616 2617 class MessageCreateSurface : public MessageBase { 2618 sp<ISurface> result; 2619 SurfaceFlinger* flinger; 2620 ISurfaceComposerClient::surface_data_t* params; 2621 Client* client; 2622 const String8& name; 2623 DisplayID display; 2624 uint32_t w, h; 2625 PixelFormat format; 2626 uint32_t flags; 2627 public: 2628 MessageCreateSurface(SurfaceFlinger* flinger, 2629 ISurfaceComposerClient::surface_data_t* params, 2630 const String8& name, Client* client, 2631 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2632 uint32_t flags) 2633 : flinger(flinger), params(params), client(client), name(name), 2634 display(display), w(w), h(h), format(format), flags(flags) 2635 { 2636 } 2637 sp<ISurface> getResult() const { return result; } 2638 virtual bool handler() { 2639 result = flinger->createSurface(params, name, client, 2640 display, w, h, format, flags); 2641 return true; 2642 } 2643 }; 2644 2645 sp<MessageBase> msg = new MessageCreateSurface(mFlinger.get(), 2646 params, name, this, display, w, h, format, flags); 2647 mFlinger->postMessageSync(msg); 2648 return static_cast<MessageCreateSurface*>( msg.get() )->getResult(); 2649} 2650status_t Client::destroySurface(SurfaceID sid) { 2651 return mFlinger->removeSurface(this, sid); 2652} 2653 2654// --------------------------------------------------------------------------- 2655 2656GraphicBufferAlloc::GraphicBufferAlloc() {} 2657 2658GraphicBufferAlloc::~GraphicBufferAlloc() {} 2659 2660sp<GraphicBuffer> GraphicBufferAlloc::createGraphicBuffer(uint32_t w, uint32_t h, 2661 PixelFormat format, uint32_t usage, status_t* error) { 2662 sp<GraphicBuffer> graphicBuffer(new GraphicBuffer(w, h, format, usage)); 2663 status_t err = graphicBuffer->initCheck(); 2664 *error = err; 2665 if (err != 0 || graphicBuffer->handle == 0) { 2666 if (err == NO_MEMORY) { 2667 GraphicBuffer::dumpAllocationsToSystemLog(); 2668 } 2669 ALOGE("GraphicBufferAlloc::createGraphicBuffer(w=%d, h=%d) " 2670 "failed (%s), handle=%p", 2671 w, h, strerror(-err), graphicBuffer->handle); 2672 return 0; 2673 } 2674 return graphicBuffer; 2675} 2676 2677// --------------------------------------------------------------------------- 2678 2679GraphicPlane::GraphicPlane() 2680 : mHw(0) 2681{ 2682} 2683 2684GraphicPlane::~GraphicPlane() { 2685 delete mHw; 2686} 2687 2688bool GraphicPlane::initialized() const { 2689 return mHw ? true : false; 2690} 2691 2692int GraphicPlane::getWidth() const { 2693 return mWidth; 2694} 2695 2696int GraphicPlane::getHeight() const { 2697 return mHeight; 2698} 2699 2700void GraphicPlane::setDisplayHardware(DisplayHardware *hw) 2701{ 2702 mHw = hw; 2703 2704 // initialize the display orientation transform. 2705 // it's a constant that should come from the display driver. 2706 int displayOrientation = ISurfaceComposer::eOrientationDefault; 2707 char property[PROPERTY_VALUE_MAX]; 2708 if (property_get("ro.sf.hwrotation", property, NULL) > 0) { 2709 //displayOrientation 2710 switch (atoi(property)) { 2711 case 90: 2712 displayOrientation = ISurfaceComposer::eOrientation90; 2713 break; 2714 case 270: 2715 displayOrientation = ISurfaceComposer::eOrientation270; 2716 break; 2717 } 2718 } 2719 2720 const float w = hw->getWidth(); 2721 const float h = hw->getHeight(); 2722 GraphicPlane::orientationToTransfrom(displayOrientation, w, h, 2723 &mDisplayTransform); 2724 if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) { 2725 mDisplayWidth = h; 2726 mDisplayHeight = w; 2727 } else { 2728 mDisplayWidth = w; 2729 mDisplayHeight = h; 2730 } 2731 2732 setOrientation(ISurfaceComposer::eOrientationDefault); 2733} 2734 2735status_t GraphicPlane::orientationToTransfrom( 2736 int orientation, int w, int h, Transform* tr) 2737{ 2738 uint32_t flags = 0; 2739 switch (orientation) { 2740 case ISurfaceComposer::eOrientationDefault: 2741 flags = Transform::ROT_0; 2742 break; 2743 case ISurfaceComposer::eOrientation90: 2744 flags = Transform::ROT_90; 2745 break; 2746 case ISurfaceComposer::eOrientation180: 2747 flags = Transform::ROT_180; 2748 break; 2749 case ISurfaceComposer::eOrientation270: 2750 flags = Transform::ROT_270; 2751 break; 2752 default: 2753 return BAD_VALUE; 2754 } 2755 tr->set(flags, w, h); 2756 return NO_ERROR; 2757} 2758 2759status_t GraphicPlane::setOrientation(int orientation) 2760{ 2761 // If the rotation can be handled in hardware, this is where 2762 // the magic should happen. 2763 2764 const DisplayHardware& hw(displayHardware()); 2765 const float w = mDisplayWidth; 2766 const float h = mDisplayHeight; 2767 mWidth = int(w); 2768 mHeight = int(h); 2769 2770 Transform orientationTransform; 2771 GraphicPlane::orientationToTransfrom(orientation, w, h, 2772 &orientationTransform); 2773 if (orientation & ISurfaceComposer::eOrientationSwapMask) { 2774 mWidth = int(h); 2775 mHeight = int(w); 2776 } 2777 2778 mOrientation = orientation; 2779 mGlobalTransform = mDisplayTransform * orientationTransform; 2780 return NO_ERROR; 2781} 2782 2783const DisplayHardware& GraphicPlane::displayHardware() const { 2784 return *mHw; 2785} 2786 2787DisplayHardware& GraphicPlane::editDisplayHardware() { 2788 return *mHw; 2789} 2790 2791const Transform& GraphicPlane::transform() const { 2792 return mGlobalTransform; 2793} 2794 2795EGLDisplay GraphicPlane::getEGLDisplay() const { 2796 return mHw->getEGLDisplay(); 2797} 2798 2799// --------------------------------------------------------------------------- 2800 2801}; // namespace android 2802