SurfaceFlinger.cpp revision b267579ba8dfe3f47d2a481c5a3c2254e3d565a1
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#define ATRACE_TAG ATRACE_TAG_GRAPHICS 18 19#include <stdlib.h> 20#include <stdio.h> 21#include <stdint.h> 22#include <unistd.h> 23#include <fcntl.h> 24#include <errno.h> 25#include <math.h> 26#include <limits.h> 27#include <sys/types.h> 28#include <sys/stat.h> 29#include <sys/ioctl.h> 30 31#include <cutils/log.h> 32#include <cutils/properties.h> 33 34#include <binder/IPCThreadState.h> 35#include <binder/IServiceManager.h> 36#include <binder/MemoryHeapBase.h> 37#include <binder/PermissionCache.h> 38 39#include <gui/IDisplayEventConnection.h> 40 41#include <utils/String8.h> 42#include <utils/String16.h> 43#include <utils/StopWatch.h> 44#include <utils/Trace.h> 45 46#include <ui/GraphicBufferAllocator.h> 47#include <ui/PixelFormat.h> 48 49#include <GLES/gl.h> 50 51#include "clz.h" 52#include "DdmConnection.h" 53#include "DisplayEventConnection.h" 54#include "EventThread.h" 55#include "GLExtensions.h" 56#include "Layer.h" 57#include "LayerDim.h" 58#include "LayerScreenshot.h" 59#include "SurfaceFlinger.h" 60 61#include "DisplayHardware/DisplayHardware.h" 62#include "DisplayHardware/HWComposer.h" 63 64#include <private/android_filesystem_config.h> 65#include <private/gui/SharedBufferStack.h> 66 67#define EGL_VERSION_HW_ANDROID 0x3143 68 69#define DISPLAY_COUNT 1 70 71namespace android { 72// --------------------------------------------------------------------------- 73 74const String16 sHardwareTest("android.permission.HARDWARE_TEST"); 75const String16 sAccessSurfaceFlinger("android.permission.ACCESS_SURFACE_FLINGER"); 76const String16 sReadFramebuffer("android.permission.READ_FRAME_BUFFER"); 77const String16 sDump("android.permission.DUMP"); 78 79// --------------------------------------------------------------------------- 80 81SurfaceFlinger::SurfaceFlinger() 82 : BnSurfaceComposer(), Thread(false), 83 mTransactionFlags(0), 84 mTransationPending(false), 85 mLayersRemoved(false), 86 mBootTime(systemTime()), 87 mVisibleRegionsDirty(false), 88 mHwWorkListDirty(false), 89 mElectronBeamAnimationMode(0), 90 mDebugRegion(0), 91 mDebugBackground(0), 92 mDebugDDMS(0), 93 mDebugDisableHWC(0), 94 mDebugDisableTransformHint(0), 95 mDebugInSwapBuffers(0), 96 mLastSwapBufferTime(0), 97 mDebugInTransaction(0), 98 mLastTransactionTime(0), 99 mBootFinished(false), 100 mConsoleSignals(0), 101 mSecureFrameBuffer(0) 102{ 103 init(); 104} 105 106void SurfaceFlinger::init() 107{ 108 ALOGI("SurfaceFlinger is starting"); 109 110 // debugging stuff... 111 char value[PROPERTY_VALUE_MAX]; 112 113 property_get("debug.sf.showupdates", value, "0"); 114 mDebugRegion = atoi(value); 115 116 property_get("debug.sf.showbackground", value, "0"); 117 mDebugBackground = atoi(value); 118 119 property_get("debug.sf.ddms", value, "0"); 120 mDebugDDMS = atoi(value); 121 if (mDebugDDMS) { 122 DdmConnection::start(getServiceName()); 123 } 124 125 ALOGI_IF(mDebugRegion, "showupdates enabled"); 126 ALOGI_IF(mDebugBackground, "showbackground enabled"); 127 ALOGI_IF(mDebugDDMS, "DDMS debugging enabled"); 128} 129 130void SurfaceFlinger::onFirstRef() 131{ 132 mEventQueue.init(this); 133 134 run("SurfaceFlinger", PRIORITY_URGENT_DISPLAY); 135 136 // Wait for the main thread to be done with its initialization 137 mReadyToRunBarrier.wait(); 138} 139 140 141SurfaceFlinger::~SurfaceFlinger() 142{ 143 glDeleteTextures(1, &mWormholeTexName); 144} 145 146void SurfaceFlinger::binderDied(const wp<IBinder>& who) 147{ 148 // the window manager died on us. prepare its eulogy. 149 150 // reset screen orientation 151 Vector<ComposerState> state; 152 setTransactionState(state, eOrientationDefault, 0); 153 154 // restart the boot-animation 155 property_set("ctl.start", "bootanim"); 156} 157 158sp<IMemoryHeap> SurfaceFlinger::getCblk() const 159{ 160 return mServerHeap; 161} 162 163sp<ISurfaceComposerClient> SurfaceFlinger::createConnection() 164{ 165 sp<ISurfaceComposerClient> bclient; 166 sp<Client> client(new Client(this)); 167 status_t err = client->initCheck(); 168 if (err == NO_ERROR) { 169 bclient = client; 170 } 171 return bclient; 172} 173 174sp<IGraphicBufferAlloc> SurfaceFlinger::createGraphicBufferAlloc() 175{ 176 sp<GraphicBufferAlloc> gba(new GraphicBufferAlloc()); 177 return gba; 178} 179 180const GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) const 181{ 182 ALOGE_IF(uint32_t(dpy) >= DISPLAY_COUNT, "Invalid DisplayID %d", dpy); 183 const GraphicPlane& plane(mGraphicPlanes[dpy]); 184 return plane; 185} 186 187GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) 188{ 189 return const_cast<GraphicPlane&>( 190 const_cast<SurfaceFlinger const *>(this)->graphicPlane(dpy)); 191} 192 193void SurfaceFlinger::bootFinished() 194{ 195 const nsecs_t now = systemTime(); 196 const nsecs_t duration = now - mBootTime; 197 ALOGI("Boot is finished (%ld ms)", long(ns2ms(duration)) ); 198 mBootFinished = true; 199 200 // wait patiently for the window manager death 201 const String16 name("window"); 202 sp<IBinder> window(defaultServiceManager()->getService(name)); 203 if (window != 0) { 204 window->linkToDeath(this); 205 } 206 207 // stop boot animation 208 property_set("ctl.stop", "bootanim"); 209} 210 211static inline uint16_t pack565(int r, int g, int b) { 212 return (r<<11)|(g<<5)|b; 213} 214 215status_t SurfaceFlinger::readyToRun() 216{ 217 ALOGI( "SurfaceFlinger's main thread ready to run. " 218 "Initializing graphics H/W..."); 219 220 // we only support one display currently 221 int dpy = 0; 222 223 { 224 // initialize the main display 225 GraphicPlane& plane(graphicPlane(dpy)); 226 DisplayHardware* const hw = new DisplayHardware(this, dpy); 227 plane.setDisplayHardware(hw); 228 } 229 230 // create the shared control-block 231 mServerHeap = new MemoryHeapBase(4096, 232 MemoryHeapBase::READ_ONLY, "SurfaceFlinger read-only heap"); 233 ALOGE_IF(mServerHeap==0, "can't create shared memory dealer"); 234 235 mServerCblk = static_cast<surface_flinger_cblk_t*>(mServerHeap->getBase()); 236 ALOGE_IF(mServerCblk==0, "can't get to shared control block's address"); 237 238 new(mServerCblk) surface_flinger_cblk_t; 239 240 // initialize primary screen 241 // (other display should be initialized in the same manner, but 242 // asynchronously, as they could come and go. None of this is supported 243 // yet). 244 const GraphicPlane& plane(graphicPlane(dpy)); 245 const DisplayHardware& hw = plane.displayHardware(); 246 const uint32_t w = hw.getWidth(); 247 const uint32_t h = hw.getHeight(); 248 const uint32_t f = hw.getFormat(); 249 hw.makeCurrent(); 250 251 // initialize the shared control block 252 mServerCblk->connected |= 1<<dpy; 253 display_cblk_t* dcblk = mServerCblk->displays + dpy; 254 memset(dcblk, 0, sizeof(display_cblk_t)); 255 dcblk->w = plane.getWidth(); 256 dcblk->h = plane.getHeight(); 257 dcblk->format = f; 258 dcblk->orientation = ISurfaceComposer::eOrientationDefault; 259 dcblk->xdpi = hw.getDpiX(); 260 dcblk->ydpi = hw.getDpiY(); 261 dcblk->fps = hw.getRefreshRate(); 262 dcblk->density = hw.getDensity(); 263 264 // Initialize OpenGL|ES 265 glPixelStorei(GL_UNPACK_ALIGNMENT, 4); 266 glPixelStorei(GL_PACK_ALIGNMENT, 4); 267 glEnableClientState(GL_VERTEX_ARRAY); 268 glEnable(GL_SCISSOR_TEST); 269 glShadeModel(GL_FLAT); 270 glDisable(GL_DITHER); 271 glDisable(GL_CULL_FACE); 272 273 const uint16_t g0 = pack565(0x0F,0x1F,0x0F); 274 const uint16_t g1 = pack565(0x17,0x2f,0x17); 275 const uint16_t wormholeTexData[4] = { g0, g1, g1, g0 }; 276 glGenTextures(1, &mWormholeTexName); 277 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 278 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 279 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 280 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 281 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 282 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, 283 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, wormholeTexData); 284 285 const uint16_t protTexData[] = { pack565(0x03, 0x03, 0x03) }; 286 glGenTextures(1, &mProtectedTexName); 287 glBindTexture(GL_TEXTURE_2D, mProtectedTexName); 288 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 289 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 290 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 291 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 292 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1, 1, 0, 293 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, protTexData); 294 295 glViewport(0, 0, w, h); 296 glMatrixMode(GL_PROJECTION); 297 glLoadIdentity(); 298 // put the origin in the left-bottom corner 299 glOrthof(0, w, 0, h, 0, 1); // l=0, r=w ; b=0, t=h 300 301 302 // start the EventThread 303 mEventThread = new EventThread(this); 304 mEventQueue.setEventThread(mEventThread); 305 hw.startSleepManagement(); 306 307 /* 308 * We're now ready to accept clients... 309 */ 310 311 mReadyToRunBarrier.open(); 312 313 // start boot animation 314 property_set("ctl.start", "bootanim"); 315 316 return NO_ERROR; 317} 318 319// ---------------------------------------------------------------------------- 320 321bool SurfaceFlinger::authenticateSurfaceTexture( 322 const sp<ISurfaceTexture>& surfaceTexture) const { 323 Mutex::Autolock _l(mStateLock); 324 sp<IBinder> surfaceTextureBinder(surfaceTexture->asBinder()); 325 326 // Check the visible layer list for the ISurface 327 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 328 size_t count = currentLayers.size(); 329 for (size_t i=0 ; i<count ; i++) { 330 const sp<LayerBase>& layer(currentLayers[i]); 331 sp<LayerBaseClient> lbc(layer->getLayerBaseClient()); 332 if (lbc != NULL) { 333 wp<IBinder> lbcBinder = lbc->getSurfaceTextureBinder(); 334 if (lbcBinder == surfaceTextureBinder) { 335 return true; 336 } 337 } 338 } 339 340 // Check the layers in the purgatory. This check is here so that if a 341 // SurfaceTexture gets destroyed before all the clients are done using it, 342 // the error will not be reported as "surface XYZ is not authenticated", but 343 // will instead fail later on when the client tries to use the surface, 344 // which should be reported as "surface XYZ returned an -ENODEV". The 345 // purgatorized layers are no less authentic than the visible ones, so this 346 // should not cause any harm. 347 size_t purgatorySize = mLayerPurgatory.size(); 348 for (size_t i=0 ; i<purgatorySize ; i++) { 349 const sp<LayerBase>& layer(mLayerPurgatory.itemAt(i)); 350 sp<LayerBaseClient> lbc(layer->getLayerBaseClient()); 351 if (lbc != NULL) { 352 wp<IBinder> lbcBinder = lbc->getSurfaceTextureBinder(); 353 if (lbcBinder == surfaceTextureBinder) { 354 return true; 355 } 356 } 357 } 358 359 return false; 360} 361 362// ---------------------------------------------------------------------------- 363 364sp<IDisplayEventConnection> SurfaceFlinger::createDisplayEventConnection() { 365 return mEventThread->createEventConnection(); 366} 367 368// ---------------------------------------------------------------------------- 369 370void SurfaceFlinger::waitForEvent() { 371 mEventQueue.waitMessage(); 372} 373 374void SurfaceFlinger::signalTransaction() { 375 mEventQueue.invalidate(); 376} 377 378void SurfaceFlinger::signalLayerUpdate() { 379 mEventQueue.invalidate(); 380} 381 382void SurfaceFlinger::signalRefresh() { 383 mEventQueue.refresh(); 384} 385 386status_t SurfaceFlinger::postMessageAsync(const sp<MessageBase>& msg, 387 nsecs_t reltime, uint32_t flags) { 388 return mEventQueue.postMessage(msg, reltime); 389} 390 391status_t SurfaceFlinger::postMessageSync(const sp<MessageBase>& msg, 392 nsecs_t reltime, uint32_t flags) { 393 status_t res = mEventQueue.postMessage(msg, reltime); 394 if (res == NO_ERROR) { 395 msg->wait(); 396 } 397 return res; 398} 399 400bool SurfaceFlinger::threadLoop() 401{ 402 waitForEvent(); 403 return true; 404} 405 406void SurfaceFlinger::onMessageReceived(int32_t what) 407{ 408 ATRACE_CALL(); 409 switch (what) { 410 case MessageQueue::REFRESH: { 411// case MessageQueue::INVALIDATE: { 412 // check for transactions 413 if (CC_UNLIKELY(mConsoleSignals)) { 414 handleConsoleEvents(); 415 } 416 417 // if we're in a global transaction, don't do anything. 418 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 419 uint32_t transactionFlags = peekTransactionFlags(mask); 420 if (CC_UNLIKELY(transactionFlags)) { 421 handleTransaction(transactionFlags); 422 } 423 424 // post surfaces (if needed) 425 handlePageFlip(); 426 427// signalRefresh(); 428// 429// } break; 430// 431// case MessageQueue::REFRESH: { 432 433 handleRefresh(); 434 435 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 436 437// if (mDirtyRegion.isEmpty()) { 438// return; 439// } 440 441 if (CC_UNLIKELY(mHwWorkListDirty)) { 442 // build the h/w work list 443 handleWorkList(); 444 } 445 446 if (CC_LIKELY(hw.canDraw())) { 447 // repaint the framebuffer (if needed) 448 handleRepaint(); 449 // inform the h/w that we're done compositing 450 hw.compositionComplete(); 451 postFramebuffer(); 452 } else { 453 // pretend we did the post 454 hw.compositionComplete(); 455 } 456 457 } break; 458 } 459} 460 461void SurfaceFlinger::postFramebuffer() 462{ 463 ATRACE_CALL(); 464 // mSwapRegion can be empty here is some cases, for instance if a hidden 465 // or fully transparent window is updating. 466 // in that case, we need to flip anyways to not risk a deadlock with 467 // h/w composer. 468 469 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 470 const nsecs_t now = systemTime(); 471 mDebugInSwapBuffers = now; 472 hw.flip(mSwapRegion); 473 474 size_t numLayers = mVisibleLayersSortedByZ.size(); 475 for (size_t i = 0; i < numLayers; i++) { 476 mVisibleLayersSortedByZ[i]->onLayerDisplayed(); 477 } 478 479 mLastSwapBufferTime = systemTime() - now; 480 mDebugInSwapBuffers = 0; 481 mSwapRegion.clear(); 482} 483 484void SurfaceFlinger::handleConsoleEvents() 485{ 486 // something to do with the console 487 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 488 489 int what = android_atomic_and(0, &mConsoleSignals); 490 if (what & eConsoleAcquired) { 491 hw.acquireScreen(); 492 // this is a temporary work-around, eventually this should be called 493 // by the power-manager 494 SurfaceFlinger::turnElectronBeamOn(mElectronBeamAnimationMode); 495 } 496 497 if (what & eConsoleReleased) { 498 if (hw.isScreenAcquired()) { 499 hw.releaseScreen(); 500 } 501 } 502 503 mDirtyRegion.set(hw.bounds()); 504} 505 506void SurfaceFlinger::handleTransaction(uint32_t transactionFlags) 507{ 508 ATRACE_CALL(); 509 510 Mutex::Autolock _l(mStateLock); 511 const nsecs_t now = systemTime(); 512 mDebugInTransaction = now; 513 514 // Here we're guaranteed that some transaction flags are set 515 // so we can call handleTransactionLocked() unconditionally. 516 // We call getTransactionFlags(), which will also clear the flags, 517 // with mStateLock held to guarantee that mCurrentState won't change 518 // until the transaction is committed. 519 520 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 521 transactionFlags = getTransactionFlags(mask); 522 handleTransactionLocked(transactionFlags); 523 524 mLastTransactionTime = systemTime() - now; 525 mDebugInTransaction = 0; 526 invalidateHwcGeometry(); 527 // here the transaction has been committed 528} 529 530void SurfaceFlinger::handleTransactionLocked(uint32_t transactionFlags) 531{ 532 const LayerVector& currentLayers(mCurrentState.layersSortedByZ); 533 const size_t count = currentLayers.size(); 534 535 /* 536 * Traversal of the children 537 * (perform the transaction for each of them if needed) 538 */ 539 540 const bool layersNeedTransaction = transactionFlags & eTraversalNeeded; 541 if (layersNeedTransaction) { 542 for (size_t i=0 ; i<count ; i++) { 543 const sp<LayerBase>& layer = currentLayers[i]; 544 uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded); 545 if (!trFlags) continue; 546 547 const uint32_t flags = layer->doTransaction(0); 548 if (flags & Layer::eVisibleRegion) 549 mVisibleRegionsDirty = true; 550 } 551 } 552 553 /* 554 * Perform our own transaction if needed 555 */ 556 557 if (transactionFlags & eTransactionNeeded) { 558 if (mCurrentState.orientation != mDrawingState.orientation) { 559 // the orientation has changed, recompute all visible regions 560 // and invalidate everything. 561 562 const int dpy = 0; 563 const int orientation = mCurrentState.orientation; 564 // Currently unused: const uint32_t flags = mCurrentState.orientationFlags; 565 GraphicPlane& plane(graphicPlane(dpy)); 566 plane.setOrientation(orientation); 567 568 // update the shared control block 569 const DisplayHardware& hw(plane.displayHardware()); 570 volatile display_cblk_t* dcblk = mServerCblk->displays + dpy; 571 dcblk->orientation = orientation; 572 dcblk->w = plane.getWidth(); 573 dcblk->h = plane.getHeight(); 574 575 mVisibleRegionsDirty = true; 576 mDirtyRegion.set(hw.bounds()); 577 } 578 579 if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) { 580 // layers have been added 581 mVisibleRegionsDirty = true; 582 } 583 584 // some layers might have been removed, so 585 // we need to update the regions they're exposing. 586 if (mLayersRemoved) { 587 mLayersRemoved = false; 588 mVisibleRegionsDirty = true; 589 const LayerVector& previousLayers(mDrawingState.layersSortedByZ); 590 const size_t count = previousLayers.size(); 591 for (size_t i=0 ; i<count ; i++) { 592 const sp<LayerBase>& layer(previousLayers[i]); 593 if (currentLayers.indexOf( layer ) < 0) { 594 // this layer is not visible anymore 595 mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen); 596 } 597 } 598 } 599 } 600 601 commitTransaction(); 602} 603 604void SurfaceFlinger::computeVisibleRegions( 605 const LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion) 606{ 607 ATRACE_CALL(); 608 609 const GraphicPlane& plane(graphicPlane(0)); 610 const Transform& planeTransform(plane.transform()); 611 const DisplayHardware& hw(plane.displayHardware()); 612 const Region screenRegion(hw.bounds()); 613 614 Region aboveOpaqueLayers; 615 Region aboveCoveredLayers; 616 Region dirty; 617 618 bool secureFrameBuffer = false; 619 620 size_t i = currentLayers.size(); 621 while (i--) { 622 const sp<LayerBase>& layer = currentLayers[i]; 623 layer->validateVisibility(planeTransform); 624 625 // start with the whole surface at its current location 626 const Layer::State& s(layer->drawingState()); 627 628 /* 629 * opaqueRegion: area of a surface that is fully opaque. 630 */ 631 Region opaqueRegion; 632 633 /* 634 * visibleRegion: area of a surface that is visible on screen 635 * and not fully transparent. This is essentially the layer's 636 * footprint minus the opaque regions above it. 637 * Areas covered by a translucent surface are considered visible. 638 */ 639 Region visibleRegion; 640 641 /* 642 * coveredRegion: area of a surface that is covered by all 643 * visible regions above it (which includes the translucent areas). 644 */ 645 Region coveredRegion; 646 647 648 // handle hidden surfaces by setting the visible region to empty 649 if (CC_LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) { 650 const bool translucent = !layer->isOpaque(); 651 const Rect bounds(layer->visibleBounds()); 652 visibleRegion.set(bounds); 653 visibleRegion.andSelf(screenRegion); 654 if (!visibleRegion.isEmpty()) { 655 // Remove the transparent area from the visible region 656 if (translucent) { 657 visibleRegion.subtractSelf(layer->transparentRegionScreen); 658 } 659 660 // compute the opaque region 661 const int32_t layerOrientation = layer->getOrientation(); 662 if (s.alpha==255 && !translucent && 663 ((layerOrientation & Transform::ROT_INVALID) == false)) { 664 // the opaque region is the layer's footprint 665 opaqueRegion = visibleRegion; 666 } 667 } 668 } 669 670 // Clip the covered region to the visible region 671 coveredRegion = aboveCoveredLayers.intersect(visibleRegion); 672 673 // Update aboveCoveredLayers for next (lower) layer 674 aboveCoveredLayers.orSelf(visibleRegion); 675 676 // subtract the opaque region covered by the layers above us 677 visibleRegion.subtractSelf(aboveOpaqueLayers); 678 679 // compute this layer's dirty region 680 if (layer->contentDirty) { 681 // we need to invalidate the whole region 682 dirty = visibleRegion; 683 // as well, as the old visible region 684 dirty.orSelf(layer->visibleRegionScreen); 685 layer->contentDirty = false; 686 } else { 687 /* compute the exposed region: 688 * the exposed region consists of two components: 689 * 1) what's VISIBLE now and was COVERED before 690 * 2) what's EXPOSED now less what was EXPOSED before 691 * 692 * note that (1) is conservative, we start with the whole 693 * visible region but only keep what used to be covered by 694 * something -- which mean it may have been exposed. 695 * 696 * (2) handles areas that were not covered by anything but got 697 * exposed because of a resize. 698 */ 699 const Region newExposed = visibleRegion - coveredRegion; 700 const Region oldVisibleRegion = layer->visibleRegionScreen; 701 const Region oldCoveredRegion = layer->coveredRegionScreen; 702 const Region oldExposed = oldVisibleRegion - oldCoveredRegion; 703 dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed); 704 } 705 dirty.subtractSelf(aboveOpaqueLayers); 706 707 // accumulate to the screen dirty region 708 dirtyRegion.orSelf(dirty); 709 710 // Update aboveOpaqueLayers for next (lower) layer 711 aboveOpaqueLayers.orSelf(opaqueRegion); 712 713 // Store the visible region is screen space 714 layer->setVisibleRegion(visibleRegion); 715 layer->setCoveredRegion(coveredRegion); 716 717 // If a secure layer is partially visible, lock-down the screen! 718 if (layer->isSecure() && !visibleRegion.isEmpty()) { 719 secureFrameBuffer = true; 720 } 721 } 722 723 // invalidate the areas where a layer was removed 724 dirtyRegion.orSelf(mDirtyRegionRemovedLayer); 725 mDirtyRegionRemovedLayer.clear(); 726 727 mSecureFrameBuffer = secureFrameBuffer; 728 opaqueRegion = aboveOpaqueLayers; 729} 730 731 732void SurfaceFlinger::commitTransaction() 733{ 734 if (!mLayersPendingRemoval.isEmpty()) { 735 // Notify removed layers now that they can't be drawn from 736 for (size_t i = 0; i < mLayersPendingRemoval.size(); i++) { 737 mLayersPendingRemoval[i]->onRemoved(); 738 } 739 mLayersPendingRemoval.clear(); 740 } 741 742 mDrawingState = mCurrentState; 743 mTransationPending = false; 744 mTransactionCV.broadcast(); 745} 746 747void SurfaceFlinger::handlePageFlip() 748{ 749 ATRACE_CALL(); 750 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 751 const Region screenRegion(hw.bounds()); 752 753 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 754 const bool visibleRegions = lockPageFlip(currentLayers); 755 756 if (visibleRegions || mVisibleRegionsDirty) { 757 Region opaqueRegion; 758 computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion); 759 760 /* 761 * rebuild the visible layer list 762 */ 763 const size_t count = currentLayers.size(); 764 mVisibleLayersSortedByZ.clear(); 765 mVisibleLayersSortedByZ.setCapacity(count); 766 for (size_t i=0 ; i<count ; i++) { 767 if (!currentLayers[i]->visibleRegionScreen.isEmpty()) 768 mVisibleLayersSortedByZ.add(currentLayers[i]); 769 } 770 771 mWormholeRegion = screenRegion.subtract(opaqueRegion); 772 mVisibleRegionsDirty = false; 773 invalidateHwcGeometry(); 774 } 775 776 unlockPageFlip(currentLayers); 777 778 mDirtyRegion.orSelf(getAndClearInvalidateRegion()); 779 mDirtyRegion.andSelf(screenRegion); 780} 781 782void SurfaceFlinger::invalidateHwcGeometry() 783{ 784 mHwWorkListDirty = true; 785} 786 787bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers) 788{ 789 bool recomputeVisibleRegions = false; 790 size_t count = currentLayers.size(); 791 sp<LayerBase> const* layers = currentLayers.array(); 792 for (size_t i=0 ; i<count ; i++) { 793 const sp<LayerBase>& layer(layers[i]); 794 layer->lockPageFlip(recomputeVisibleRegions); 795 } 796 return recomputeVisibleRegions; 797} 798 799void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers) 800{ 801 const GraphicPlane& plane(graphicPlane(0)); 802 const Transform& planeTransform(plane.transform()); 803 const size_t count = currentLayers.size(); 804 sp<LayerBase> const* layers = currentLayers.array(); 805 for (size_t i=0 ; i<count ; i++) { 806 const sp<LayerBase>& layer(layers[i]); 807 layer->unlockPageFlip(planeTransform, mDirtyRegion); 808 } 809} 810 811void SurfaceFlinger::handleRefresh() 812{ 813 bool needInvalidate = false; 814 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 815 const size_t count = currentLayers.size(); 816 for (size_t i=0 ; i<count ; i++) { 817 const sp<LayerBase>& layer(currentLayers[i]); 818 if (layer->onPreComposition()) { 819 needInvalidate = true; 820 } 821 } 822 if (needInvalidate) { 823 signalLayerUpdate(); 824 } 825} 826 827 828void SurfaceFlinger::handleWorkList() 829{ 830 mHwWorkListDirty = false; 831 HWComposer& hwc(graphicPlane(0).displayHardware().getHwComposer()); 832 if (hwc.initCheck() == NO_ERROR) { 833 const Vector< sp<LayerBase> >& currentLayers(mVisibleLayersSortedByZ); 834 const size_t count = currentLayers.size(); 835 hwc.createWorkList(count); 836 hwc_layer_t* const cur(hwc.getLayers()); 837 for (size_t i=0 ; cur && i<count ; i++) { 838 currentLayers[i]->setGeometry(&cur[i]); 839 if (mDebugDisableHWC || mDebugRegion) { 840 cur[i].compositionType = HWC_FRAMEBUFFER; 841 cur[i].flags |= HWC_SKIP_LAYER; 842 } 843 } 844 } 845} 846 847void SurfaceFlinger::handleRepaint() 848{ 849 ATRACE_CALL(); 850 851 // compute the invalid region 852 mSwapRegion.orSelf(mDirtyRegion); 853 854 if (CC_UNLIKELY(mDebugRegion)) { 855 debugFlashRegions(); 856 } 857 858 // set the frame buffer 859 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 860 glMatrixMode(GL_MODELVIEW); 861 glLoadIdentity(); 862 863 uint32_t flags = hw.getFlags(); 864 if ((flags & DisplayHardware::SWAP_RECTANGLE) || 865 (flags & DisplayHardware::BUFFER_PRESERVED)) 866 { 867 // we can redraw only what's dirty, but since SWAP_RECTANGLE only 868 // takes a rectangle, we must make sure to update that whole 869 // rectangle in that case 870 if (flags & DisplayHardware::SWAP_RECTANGLE) { 871 // TODO: we really should be able to pass a region to 872 // SWAP_RECTANGLE so that we don't have to redraw all this. 873 mDirtyRegion.set(mSwapRegion.bounds()); 874 } else { 875 // in the BUFFER_PRESERVED case, obviously, we can update only 876 // what's needed and nothing more. 877 // NOTE: this is NOT a common case, as preserving the backbuffer 878 // is costly and usually involves copying the whole update back. 879 } 880 } else { 881 if (flags & DisplayHardware::PARTIAL_UPDATES) { 882 // We need to redraw the rectangle that will be updated 883 // (pushed to the framebuffer). 884 // This is needed because PARTIAL_UPDATES only takes one 885 // rectangle instead of a region (see DisplayHardware::flip()) 886 mDirtyRegion.set(mSwapRegion.bounds()); 887 } else { 888 // we need to redraw everything (the whole screen) 889 mDirtyRegion.set(hw.bounds()); 890 mSwapRegion = mDirtyRegion; 891 } 892 } 893 894 setupHardwareComposer(mDirtyRegion); 895 composeSurfaces(mDirtyRegion); 896 897 // update the swap region and clear the dirty region 898 mSwapRegion.orSelf(mDirtyRegion); 899 mDirtyRegion.clear(); 900} 901 902void SurfaceFlinger::setupHardwareComposer(Region& dirtyInOut) 903{ 904 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 905 HWComposer& hwc(hw.getHwComposer()); 906 hwc_layer_t* const cur(hwc.getLayers()); 907 if (!cur) { 908 return; 909 } 910 911 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 912 size_t count = layers.size(); 913 914 ALOGE_IF(hwc.getNumLayers() != count, 915 "HAL number of layers (%d) doesn't match surfaceflinger (%d)", 916 hwc.getNumLayers(), count); 917 918 // just to be extra-safe, use the smallest count 919 if (hwc.initCheck() == NO_ERROR) { 920 count = count < hwc.getNumLayers() ? count : hwc.getNumLayers(); 921 } 922 923 /* 924 * update the per-frame h/w composer data for each layer 925 * and build the transparent region of the FB 926 */ 927 for (size_t i=0 ; i<count ; i++) { 928 const sp<LayerBase>& layer(layers[i]); 929 layer->setPerFrameData(&cur[i]); 930 } 931 const size_t fbLayerCount = hwc.getLayerCount(HWC_FRAMEBUFFER); 932 status_t err = hwc.prepare(); 933 ALOGE_IF(err, "HWComposer::prepare failed (%s)", strerror(-err)); 934 935 if (err == NO_ERROR) { 936 // what's happening here is tricky. 937 // we want to clear all the layers with the CLEAR_FB flags 938 // that are opaque. 939 // however, since some GPU are efficient at preserving 940 // the backbuffer, we want to take advantage of that so we do the 941 // clear only in the dirty region (other areas will be preserved 942 // on those GPUs). 943 // NOTE: on non backbuffer preserving GPU, the dirty region 944 // has already been expanded as needed, so the code is correct 945 // there too. 946 // 947 // However, the content of the framebuffer cannot be trusted when 948 // we switch to/from FB/OVERLAY, in which case we need to 949 // expand the dirty region to those areas too. 950 // 951 // Note also that there is a special case when switching from 952 // "no layers in FB" to "some layers in FB", where we need to redraw 953 // the entire FB, since some areas might contain uninitialized 954 // data. 955 // 956 // Also we want to make sure to not clear areas that belong to 957 // layers above that won't redraw (we would just be erasing them), 958 // that is, we can't erase anything outside the dirty region. 959 960 Region transparent; 961 962 if (!fbLayerCount && hwc.getLayerCount(HWC_FRAMEBUFFER)) { 963 transparent.set(hw.getBounds()); 964 dirtyInOut = transparent; 965 } else { 966 for (size_t i=0 ; i<count ; i++) { 967 const sp<LayerBase>& layer(layers[i]); 968 if ((cur[i].hints & HWC_HINT_CLEAR_FB) && layer->isOpaque()) { 969 transparent.orSelf(layer->visibleRegionScreen); 970 } 971 bool isOverlay = (cur[i].compositionType != HWC_FRAMEBUFFER); 972 if (isOverlay != layer->isOverlay()) { 973 // we transitioned to/from overlay, so add this layer 974 // to the dirty region so the framebuffer can be either 975 // cleared or redrawn. 976 dirtyInOut.orSelf(layer->visibleRegionScreen); 977 } 978 layer->setOverlay(isOverlay); 979 } 980 // don't erase stuff outside the dirty region 981 transparent.andSelf(dirtyInOut); 982 } 983 984 /* 985 * clear the area of the FB that need to be transparent 986 */ 987 if (!transparent.isEmpty()) { 988 glClearColor(0,0,0,0); 989 Region::const_iterator it = transparent.begin(); 990 Region::const_iterator const end = transparent.end(); 991 const int32_t height = hw.getHeight(); 992 while (it != end) { 993 const Rect& r(*it++); 994 const GLint sy = height - (r.top + r.height()); 995 glScissor(r.left, sy, r.width(), r.height()); 996 glClear(GL_COLOR_BUFFER_BIT); 997 } 998 } 999 } 1000} 1001 1002void SurfaceFlinger::composeSurfaces(const Region& dirty) 1003{ 1004 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1005 HWComposer& hwc(hw.getHwComposer()); 1006 1007 const size_t fbLayerCount = hwc.getLayerCount(HWC_FRAMEBUFFER); 1008 if (CC_UNLIKELY(fbLayerCount && !mWormholeRegion.isEmpty())) { 1009 // should never happen unless the window manager has a bug 1010 // draw something... 1011 drawWormhole(); 1012 } 1013 1014 // FIXME: workaroud for b/6020860 1015 glEnable(GL_SCISSOR_TEST); 1016 glScissor(0,0,0,0); 1017 glClear(GL_COLOR_BUFFER_BIT); 1018 // end-workaround 1019 1020 /* 1021 * and then, render the layers targeted at the framebuffer 1022 */ 1023 hwc_layer_t* const cur(hwc.getLayers()); 1024 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1025 size_t count = layers.size(); 1026 for (size_t i=0 ; i<count ; i++) { 1027 if (cur && (cur[i].compositionType != HWC_FRAMEBUFFER)) { 1028 continue; 1029 } 1030 const sp<LayerBase>& layer(layers[i]); 1031 const Region clip(dirty.intersect(layer->visibleRegionScreen)); 1032 if (!clip.isEmpty()) { 1033 layer->draw(clip); 1034 } 1035 } 1036} 1037 1038void SurfaceFlinger::debugFlashRegions() 1039{ 1040 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1041 const uint32_t flags = hw.getFlags(); 1042 const int32_t height = hw.getHeight(); 1043 if (mSwapRegion.isEmpty()) { 1044 return; 1045 } 1046 1047 if (!((flags & DisplayHardware::SWAP_RECTANGLE) || 1048 (flags & DisplayHardware::BUFFER_PRESERVED))) { 1049 const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ? 1050 mDirtyRegion.bounds() : hw.bounds()); 1051 composeSurfaces(repaint); 1052 } 1053 1054 glDisable(GL_TEXTURE_EXTERNAL_OES); 1055 glDisable(GL_TEXTURE_2D); 1056 glDisable(GL_BLEND); 1057 glDisable(GL_SCISSOR_TEST); 1058 1059 static int toggle = 0; 1060 toggle = 1 - toggle; 1061 if (toggle) { 1062 glColor4f(1, 0, 1, 1); 1063 } else { 1064 glColor4f(1, 1, 0, 1); 1065 } 1066 1067 Region::const_iterator it = mDirtyRegion.begin(); 1068 Region::const_iterator const end = mDirtyRegion.end(); 1069 while (it != end) { 1070 const Rect& r = *it++; 1071 GLfloat vertices[][2] = { 1072 { r.left, height - r.top }, 1073 { r.left, height - r.bottom }, 1074 { r.right, height - r.bottom }, 1075 { r.right, height - r.top } 1076 }; 1077 glVertexPointer(2, GL_FLOAT, 0, vertices); 1078 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1079 } 1080 1081 hw.flip(mSwapRegion); 1082 1083 if (mDebugRegion > 1) 1084 usleep(mDebugRegion * 1000); 1085 1086 glEnable(GL_SCISSOR_TEST); 1087} 1088 1089void SurfaceFlinger::drawWormhole() const 1090{ 1091 const Region region(mWormholeRegion.intersect(mDirtyRegion)); 1092 if (region.isEmpty()) 1093 return; 1094 1095 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1096 const int32_t width = hw.getWidth(); 1097 const int32_t height = hw.getHeight(); 1098 1099 if (CC_LIKELY(!mDebugBackground)) { 1100 glClearColor(0,0,0,0); 1101 Region::const_iterator it = region.begin(); 1102 Region::const_iterator const end = region.end(); 1103 while (it != end) { 1104 const Rect& r = *it++; 1105 const GLint sy = height - (r.top + r.height()); 1106 glScissor(r.left, sy, r.width(), r.height()); 1107 glClear(GL_COLOR_BUFFER_BIT); 1108 } 1109 } else { 1110 const GLshort vertices[][2] = { { 0, 0 }, { width, 0 }, 1111 { width, height }, { 0, height } }; 1112 const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } }; 1113 1114 glVertexPointer(2, GL_SHORT, 0, vertices); 1115 glTexCoordPointer(2, GL_SHORT, 0, tcoords); 1116 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1117 1118 glDisable(GL_TEXTURE_EXTERNAL_OES); 1119 glEnable(GL_TEXTURE_2D); 1120 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 1121 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1122 glMatrixMode(GL_TEXTURE); 1123 glLoadIdentity(); 1124 1125 glDisable(GL_BLEND); 1126 1127 glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1); 1128 Region::const_iterator it = region.begin(); 1129 Region::const_iterator const end = region.end(); 1130 while (it != end) { 1131 const Rect& r = *it++; 1132 const GLint sy = height - (r.top + r.height()); 1133 glScissor(r.left, sy, r.width(), r.height()); 1134 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1135 } 1136 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1137 glDisable(GL_TEXTURE_2D); 1138 glLoadIdentity(); 1139 glMatrixMode(GL_MODELVIEW); 1140 } 1141} 1142 1143status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer) 1144{ 1145 Mutex::Autolock _l(mStateLock); 1146 addLayer_l(layer); 1147 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1148 return NO_ERROR; 1149} 1150 1151status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer) 1152{ 1153 ssize_t i = mCurrentState.layersSortedByZ.add(layer); 1154 return (i < 0) ? status_t(i) : status_t(NO_ERROR); 1155} 1156 1157ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client, 1158 const sp<LayerBaseClient>& lbc) 1159{ 1160 // attach this layer to the client 1161 size_t name = client->attachLayer(lbc); 1162 1163 Mutex::Autolock _l(mStateLock); 1164 1165 // add this layer to the current state list 1166 addLayer_l(lbc); 1167 1168 return ssize_t(name); 1169} 1170 1171status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer) 1172{ 1173 Mutex::Autolock _l(mStateLock); 1174 status_t err = purgatorizeLayer_l(layer); 1175 if (err == NO_ERROR) 1176 setTransactionFlags(eTransactionNeeded); 1177 return err; 1178} 1179 1180status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase) 1181{ 1182 sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient()); 1183 if (lbc != 0) { 1184 mLayerMap.removeItem( lbc->getSurfaceBinder() ); 1185 } 1186 ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase); 1187 if (index >= 0) { 1188 mLayersRemoved = true; 1189 return NO_ERROR; 1190 } 1191 return status_t(index); 1192} 1193 1194status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase) 1195{ 1196 // First add the layer to the purgatory list, which makes sure it won't 1197 // go away, then remove it from the main list (through a transaction). 1198 ssize_t err = removeLayer_l(layerBase); 1199 if (err >= 0) { 1200 mLayerPurgatory.add(layerBase); 1201 } 1202 1203 mLayersPendingRemoval.push(layerBase); 1204 1205 // it's possible that we don't find a layer, because it might 1206 // have been destroyed already -- this is not technically an error 1207 // from the user because there is a race between Client::destroySurface(), 1208 // ~Client() and ~ISurface(). 1209 return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err; 1210} 1211 1212status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer) 1213{ 1214 layer->forceVisibilityTransaction(); 1215 setTransactionFlags(eTraversalNeeded); 1216 return NO_ERROR; 1217} 1218 1219uint32_t SurfaceFlinger::peekTransactionFlags(uint32_t flags) 1220{ 1221 return android_atomic_release_load(&mTransactionFlags); 1222} 1223 1224uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags) 1225{ 1226 return android_atomic_and(~flags, &mTransactionFlags) & flags; 1227} 1228 1229uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags) 1230{ 1231 uint32_t old = android_atomic_or(flags, &mTransactionFlags); 1232 if ((old & flags)==0) { // wake the server up 1233 signalTransaction(); 1234 } 1235 return old; 1236} 1237 1238 1239void SurfaceFlinger::setTransactionState(const Vector<ComposerState>& state, 1240 int orientation, uint32_t flags) { 1241 Mutex::Autolock _l(mStateLock); 1242 1243 uint32_t transactionFlags = 0; 1244 if (mCurrentState.orientation != orientation) { 1245 if (uint32_t(orientation)<=eOrientation270 || orientation==42) { 1246 mCurrentState.orientation = orientation; 1247 transactionFlags |= eTransactionNeeded; 1248 } else if (orientation != eOrientationUnchanged) { 1249 ALOGW("setTransactionState: ignoring unrecognized orientation: %d", 1250 orientation); 1251 } 1252 } 1253 1254 const size_t count = state.size(); 1255 for (size_t i=0 ; i<count ; i++) { 1256 const ComposerState& s(state[i]); 1257 sp<Client> client( static_cast<Client *>(s.client.get()) ); 1258 transactionFlags |= setClientStateLocked(client, s.state); 1259 } 1260 1261 if (transactionFlags) { 1262 // this triggers the transaction 1263 setTransactionFlags(transactionFlags); 1264 1265 // if this is a synchronous transaction, wait for it to take effect 1266 // before returning. 1267 if (flags & eSynchronous) { 1268 mTransationPending = true; 1269 } 1270 while (mTransationPending) { 1271 status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5)); 1272 if (CC_UNLIKELY(err != NO_ERROR)) { 1273 // just in case something goes wrong in SF, return to the 1274 // called after a few seconds. 1275 ALOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!"); 1276 mTransationPending = false; 1277 break; 1278 } 1279 } 1280 } 1281} 1282 1283sp<ISurface> SurfaceFlinger::createSurface( 1284 ISurfaceComposerClient::surface_data_t* params, 1285 const String8& name, 1286 const sp<Client>& client, 1287 DisplayID d, uint32_t w, uint32_t h, PixelFormat format, 1288 uint32_t flags) 1289{ 1290 sp<LayerBaseClient> layer; 1291 sp<ISurface> surfaceHandle; 1292 1293 if (int32_t(w|h) < 0) { 1294 ALOGE("createSurface() failed, w or h is negative (w=%d, h=%d)", 1295 int(w), int(h)); 1296 return surfaceHandle; 1297 } 1298 1299 //ALOGD("createSurface for (%d x %d), name=%s", w, h, name.string()); 1300 sp<Layer> normalLayer; 1301 switch (flags & eFXSurfaceMask) { 1302 case eFXSurfaceNormal: 1303 normalLayer = createNormalSurface(client, d, w, h, flags, format); 1304 layer = normalLayer; 1305 break; 1306 case eFXSurfaceBlur: 1307 // for now we treat Blur as Dim, until we can implement it 1308 // efficiently. 1309 case eFXSurfaceDim: 1310 layer = createDimSurface(client, d, w, h, flags); 1311 break; 1312 case eFXSurfaceScreenshot: 1313 layer = createScreenshotSurface(client, d, w, h, flags); 1314 break; 1315 } 1316 1317 if (layer != 0) { 1318 layer->initStates(w, h, flags); 1319 layer->setName(name); 1320 ssize_t token = addClientLayer(client, layer); 1321 1322 surfaceHandle = layer->getSurface(); 1323 if (surfaceHandle != 0) { 1324 params->token = token; 1325 params->identity = layer->getIdentity(); 1326 if (normalLayer != 0) { 1327 Mutex::Autolock _l(mStateLock); 1328 mLayerMap.add(layer->getSurfaceBinder(), normalLayer); 1329 } 1330 } 1331 1332 setTransactionFlags(eTransactionNeeded); 1333 } 1334 1335 return surfaceHandle; 1336} 1337 1338sp<Layer> SurfaceFlinger::createNormalSurface( 1339 const sp<Client>& client, DisplayID display, 1340 uint32_t w, uint32_t h, uint32_t flags, 1341 PixelFormat& format) 1342{ 1343 // initialize the surfaces 1344 switch (format) { // TODO: take h/w into account 1345 case PIXEL_FORMAT_TRANSPARENT: 1346 case PIXEL_FORMAT_TRANSLUCENT: 1347 format = PIXEL_FORMAT_RGBA_8888; 1348 break; 1349 case PIXEL_FORMAT_OPAQUE: 1350#ifdef NO_RGBX_8888 1351 format = PIXEL_FORMAT_RGB_565; 1352#else 1353 format = PIXEL_FORMAT_RGBX_8888; 1354#endif 1355 break; 1356 } 1357 1358#ifdef NO_RGBX_8888 1359 if (format == PIXEL_FORMAT_RGBX_8888) 1360 format = PIXEL_FORMAT_RGBA_8888; 1361#endif 1362 1363 sp<Layer> layer = new Layer(this, display, client); 1364 status_t err = layer->setBuffers(w, h, format, flags); 1365 if (CC_LIKELY(err != NO_ERROR)) { 1366 ALOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err)); 1367 layer.clear(); 1368 } 1369 return layer; 1370} 1371 1372sp<LayerDim> SurfaceFlinger::createDimSurface( 1373 const sp<Client>& client, DisplayID display, 1374 uint32_t w, uint32_t h, uint32_t flags) 1375{ 1376 sp<LayerDim> layer = new LayerDim(this, display, client); 1377 return layer; 1378} 1379 1380sp<LayerScreenshot> SurfaceFlinger::createScreenshotSurface( 1381 const sp<Client>& client, DisplayID display, 1382 uint32_t w, uint32_t h, uint32_t flags) 1383{ 1384 sp<LayerScreenshot> layer = new LayerScreenshot(this, display, client); 1385 return layer; 1386} 1387 1388status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid) 1389{ 1390 /* 1391 * called by the window manager, when a surface should be marked for 1392 * destruction. 1393 * 1394 * The surface is removed from the current and drawing lists, but placed 1395 * in the purgatory queue, so it's not destroyed right-away (we need 1396 * to wait for all client's references to go away first). 1397 */ 1398 1399 status_t err = NAME_NOT_FOUND; 1400 Mutex::Autolock _l(mStateLock); 1401 sp<LayerBaseClient> layer = client->getLayerUser(sid); 1402 1403 if (layer != 0) { 1404 err = purgatorizeLayer_l(layer); 1405 if (err == NO_ERROR) { 1406 setTransactionFlags(eTransactionNeeded); 1407 } 1408 } 1409 return err; 1410} 1411 1412status_t SurfaceFlinger::destroySurface(const wp<LayerBaseClient>& layer) 1413{ 1414 // called by ~ISurface() when all references are gone 1415 status_t err = NO_ERROR; 1416 sp<LayerBaseClient> l(layer.promote()); 1417 if (l != NULL) { 1418 Mutex::Autolock _l(mStateLock); 1419 err = removeLayer_l(l); 1420 if (err == NAME_NOT_FOUND) { 1421 // The surface wasn't in the current list, which means it was 1422 // removed already, which means it is in the purgatory, 1423 // and need to be removed from there. 1424 ssize_t idx = mLayerPurgatory.remove(l); 1425 ALOGE_IF(idx < 0, 1426 "layer=%p is not in the purgatory list", l.get()); 1427 } 1428 ALOGE_IF(err<0 && err != NAME_NOT_FOUND, 1429 "error removing layer=%p (%s)", l.get(), strerror(-err)); 1430 } 1431 return err; 1432} 1433 1434uint32_t SurfaceFlinger::setClientStateLocked( 1435 const sp<Client>& client, 1436 const layer_state_t& s) 1437{ 1438 uint32_t flags = 0; 1439 sp<LayerBaseClient> layer(client->getLayerUser(s.surface)); 1440 if (layer != 0) { 1441 const uint32_t what = s.what; 1442 if (what & ePositionChanged) { 1443 if (layer->setPosition(s.x, s.y)) 1444 flags |= eTraversalNeeded; 1445 } 1446 if (what & eLayerChanged) { 1447 ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer); 1448 if (layer->setLayer(s.z)) { 1449 mCurrentState.layersSortedByZ.removeAt(idx); 1450 mCurrentState.layersSortedByZ.add(layer); 1451 // we need traversal (state changed) 1452 // AND transaction (list changed) 1453 flags |= eTransactionNeeded|eTraversalNeeded; 1454 } 1455 } 1456 if (what & eSizeChanged) { 1457 if (layer->setSize(s.w, s.h)) { 1458 flags |= eTraversalNeeded; 1459 } 1460 } 1461 if (what & eAlphaChanged) { 1462 if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f))) 1463 flags |= eTraversalNeeded; 1464 } 1465 if (what & eMatrixChanged) { 1466 if (layer->setMatrix(s.matrix)) 1467 flags |= eTraversalNeeded; 1468 } 1469 if (what & eTransparentRegionChanged) { 1470 if (layer->setTransparentRegionHint(s.transparentRegion)) 1471 flags |= eTraversalNeeded; 1472 } 1473 if (what & eVisibilityChanged) { 1474 if (layer->setFlags(s.flags, s.mask)) 1475 flags |= eTraversalNeeded; 1476 } 1477 } 1478 return flags; 1479} 1480 1481void SurfaceFlinger::screenReleased(int dpy) 1482{ 1483 // this may be called by a signal handler, we can't do too much in here 1484 android_atomic_or(eConsoleReleased, &mConsoleSignals); 1485 signalTransaction(); 1486} 1487 1488void SurfaceFlinger::screenAcquired(int dpy) 1489{ 1490 // this may be called by a signal handler, we can't do too much in here 1491 android_atomic_or(eConsoleAcquired, &mConsoleSignals); 1492 signalTransaction(); 1493} 1494 1495status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args) 1496{ 1497 const size_t SIZE = 4096; 1498 char buffer[SIZE]; 1499 String8 result; 1500 1501 if (!PermissionCache::checkCallingPermission(sDump)) { 1502 snprintf(buffer, SIZE, "Permission Denial: " 1503 "can't dump SurfaceFlinger from pid=%d, uid=%d\n", 1504 IPCThreadState::self()->getCallingPid(), 1505 IPCThreadState::self()->getCallingUid()); 1506 result.append(buffer); 1507 } else { 1508 // Try to get the main lock, but don't insist if we can't 1509 // (this would indicate SF is stuck, but we want to be able to 1510 // print something in dumpsys). 1511 int retry = 3; 1512 while (mStateLock.tryLock()<0 && --retry>=0) { 1513 usleep(1000000); 1514 } 1515 const bool locked(retry >= 0); 1516 if (!locked) { 1517 snprintf(buffer, SIZE, 1518 "SurfaceFlinger appears to be unresponsive, " 1519 "dumping anyways (no locks held)\n"); 1520 result.append(buffer); 1521 } 1522 1523 bool dumpAll = true; 1524 size_t index = 0; 1525 size_t numArgs = args.size(); 1526 if (numArgs) { 1527 if ((index < numArgs) && 1528 (args[index] == String16("--list"))) { 1529 index++; 1530 listLayersLocked(args, index, result, buffer, SIZE); 1531 dumpAll = false; 1532 } 1533 1534 if ((index < numArgs) && 1535 (args[index] == String16("--latency"))) { 1536 index++; 1537 dumpStatsLocked(args, index, result, buffer, SIZE); 1538 dumpAll = false; 1539 } 1540 1541 if ((index < numArgs) && 1542 (args[index] == String16("--latency-clear"))) { 1543 index++; 1544 clearStatsLocked(args, index, result, buffer, SIZE); 1545 dumpAll = false; 1546 } 1547 } 1548 1549 if (dumpAll) { 1550 dumpAllLocked(result, buffer, SIZE); 1551 } 1552 1553 if (locked) { 1554 mStateLock.unlock(); 1555 } 1556 } 1557 write(fd, result.string(), result.size()); 1558 return NO_ERROR; 1559} 1560 1561void SurfaceFlinger::listLayersLocked(const Vector<String16>& args, size_t& index, 1562 String8& result, char* buffer, size_t SIZE) const 1563{ 1564 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1565 const size_t count = currentLayers.size(); 1566 for (size_t i=0 ; i<count ; i++) { 1567 const sp<LayerBase>& layer(currentLayers[i]); 1568 snprintf(buffer, SIZE, "%s\n", layer->getName().string()); 1569 result.append(buffer); 1570 } 1571} 1572 1573void SurfaceFlinger::dumpStatsLocked(const Vector<String16>& args, size_t& index, 1574 String8& result, char* buffer, size_t SIZE) const 1575{ 1576 String8 name; 1577 if (index < args.size()) { 1578 name = String8(args[index]); 1579 index++; 1580 } 1581 1582 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1583 const size_t count = currentLayers.size(); 1584 for (size_t i=0 ; i<count ; i++) { 1585 const sp<LayerBase>& layer(currentLayers[i]); 1586 if (name.isEmpty()) { 1587 snprintf(buffer, SIZE, "%s\n", layer->getName().string()); 1588 result.append(buffer); 1589 } 1590 if (name.isEmpty() || (name == layer->getName())) { 1591 layer->dumpStats(result, buffer, SIZE); 1592 } 1593 } 1594} 1595 1596void SurfaceFlinger::clearStatsLocked(const Vector<String16>& args, size_t& index, 1597 String8& result, char* buffer, size_t SIZE) const 1598{ 1599 String8 name; 1600 if (index < args.size()) { 1601 name = String8(args[index]); 1602 index++; 1603 } 1604 1605 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1606 const size_t count = currentLayers.size(); 1607 for (size_t i=0 ; i<count ; i++) { 1608 const sp<LayerBase>& layer(currentLayers[i]); 1609 if (name.isEmpty() || (name == layer->getName())) { 1610 layer->clearStats(); 1611 } 1612 } 1613} 1614 1615void SurfaceFlinger::dumpAllLocked( 1616 String8& result, char* buffer, size_t SIZE) const 1617{ 1618 // figure out if we're stuck somewhere 1619 const nsecs_t now = systemTime(); 1620 const nsecs_t inSwapBuffers(mDebugInSwapBuffers); 1621 const nsecs_t inTransaction(mDebugInTransaction); 1622 nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0; 1623 nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0; 1624 1625 /* 1626 * Dump the visible layer list 1627 */ 1628 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1629 const size_t count = currentLayers.size(); 1630 snprintf(buffer, SIZE, "Visible layers (count = %d)\n", count); 1631 result.append(buffer); 1632 for (size_t i=0 ; i<count ; i++) { 1633 const sp<LayerBase>& layer(currentLayers[i]); 1634 layer->dump(result, buffer, SIZE); 1635 } 1636 1637 /* 1638 * Dump the layers in the purgatory 1639 */ 1640 1641 const size_t purgatorySize = mLayerPurgatory.size(); 1642 snprintf(buffer, SIZE, "Purgatory state (%d entries)\n", purgatorySize); 1643 result.append(buffer); 1644 for (size_t i=0 ; i<purgatorySize ; i++) { 1645 const sp<LayerBase>& layer(mLayerPurgatory.itemAt(i)); 1646 layer->shortDump(result, buffer, SIZE); 1647 } 1648 1649 /* 1650 * Dump SurfaceFlinger global state 1651 */ 1652 1653 snprintf(buffer, SIZE, "SurfaceFlinger global state:\n"); 1654 result.append(buffer); 1655 1656 const GLExtensions& extensions(GLExtensions::getInstance()); 1657 snprintf(buffer, SIZE, "GLES: %s, %s, %s\n", 1658 extensions.getVendor(), 1659 extensions.getRenderer(), 1660 extensions.getVersion()); 1661 result.append(buffer); 1662 1663 snprintf(buffer, SIZE, "EGL : %s\n", 1664 eglQueryString(graphicPlane(0).getEGLDisplay(), 1665 EGL_VERSION_HW_ANDROID)); 1666 result.append(buffer); 1667 1668 snprintf(buffer, SIZE, "EXTS: %s\n", extensions.getExtension()); 1669 result.append(buffer); 1670 1671 mWormholeRegion.dump(result, "WormholeRegion"); 1672 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1673 snprintf(buffer, SIZE, 1674 " orientation=%d, canDraw=%d\n", 1675 mCurrentState.orientation, hw.canDraw()); 1676 result.append(buffer); 1677 snprintf(buffer, SIZE, 1678 " last eglSwapBuffers() time: %f us\n" 1679 " last transaction time : %f us\n" 1680 " transaction-flags : %08x\n" 1681 " refresh-rate : %f fps\n" 1682 " x-dpi : %f\n" 1683 " y-dpi : %f\n", 1684 mLastSwapBufferTime/1000.0, 1685 mLastTransactionTime/1000.0, 1686 mTransactionFlags, 1687 hw.getRefreshRate(), 1688 hw.getDpiX(), 1689 hw.getDpiY()); 1690 result.append(buffer); 1691 1692 snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n", 1693 inSwapBuffersDuration/1000.0); 1694 result.append(buffer); 1695 1696 snprintf(buffer, SIZE, " transaction time: %f us\n", 1697 inTransactionDuration/1000.0); 1698 result.append(buffer); 1699 1700 /* 1701 * VSYNC state 1702 */ 1703 mEventThread->dump(result, buffer, SIZE); 1704 1705 /* 1706 * Dump HWComposer state 1707 */ 1708 HWComposer& hwc(hw.getHwComposer()); 1709 snprintf(buffer, SIZE, "h/w composer state:\n"); 1710 result.append(buffer); 1711 snprintf(buffer, SIZE, " h/w composer %s and %s\n", 1712 hwc.initCheck()==NO_ERROR ? "present" : "not present", 1713 (mDebugDisableHWC || mDebugRegion) ? "disabled" : "enabled"); 1714 result.append(buffer); 1715 hwc.dump(result, buffer, SIZE, mVisibleLayersSortedByZ); 1716 1717 /* 1718 * Dump gralloc state 1719 */ 1720 const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get()); 1721 alloc.dump(result); 1722 hw.dump(result); 1723} 1724 1725status_t SurfaceFlinger::onTransact( 1726 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1727{ 1728 switch (code) { 1729 case CREATE_CONNECTION: 1730 case SET_TRANSACTION_STATE: 1731 case SET_ORIENTATION: 1732 case BOOT_FINISHED: 1733 case TURN_ELECTRON_BEAM_OFF: 1734 case TURN_ELECTRON_BEAM_ON: 1735 { 1736 // codes that require permission check 1737 IPCThreadState* ipc = IPCThreadState::self(); 1738 const int pid = ipc->getCallingPid(); 1739 const int uid = ipc->getCallingUid(); 1740 if ((uid != AID_GRAPHICS) && 1741 !PermissionCache::checkPermission(sAccessSurfaceFlinger, pid, uid)) { 1742 ALOGE("Permission Denial: " 1743 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1744 return PERMISSION_DENIED; 1745 } 1746 break; 1747 } 1748 case CAPTURE_SCREEN: 1749 { 1750 // codes that require permission check 1751 IPCThreadState* ipc = IPCThreadState::self(); 1752 const int pid = ipc->getCallingPid(); 1753 const int uid = ipc->getCallingUid(); 1754 if ((uid != AID_GRAPHICS) && 1755 !PermissionCache::checkPermission(sReadFramebuffer, pid, uid)) { 1756 ALOGE("Permission Denial: " 1757 "can't read framebuffer pid=%d, uid=%d", pid, uid); 1758 return PERMISSION_DENIED; 1759 } 1760 break; 1761 } 1762 } 1763 1764 status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags); 1765 if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) { 1766 CHECK_INTERFACE(ISurfaceComposer, data, reply); 1767 if (CC_UNLIKELY(!PermissionCache::checkCallingPermission(sHardwareTest))) { 1768 IPCThreadState* ipc = IPCThreadState::self(); 1769 const int pid = ipc->getCallingPid(); 1770 const int uid = ipc->getCallingUid(); 1771 ALOGE("Permission Denial: " 1772 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1773 return PERMISSION_DENIED; 1774 } 1775 int n; 1776 switch (code) { 1777 case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE 1778 case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE 1779 return NO_ERROR; 1780 case 1002: // SHOW_UPDATES 1781 n = data.readInt32(); 1782 mDebugRegion = n ? n : (mDebugRegion ? 0 : 1); 1783 invalidateHwcGeometry(); 1784 repaintEverything(); 1785 return NO_ERROR; 1786 case 1003: // SHOW_BACKGROUND 1787 n = data.readInt32(); 1788 mDebugBackground = n ? 1 : 0; 1789 return NO_ERROR; 1790 case 1004:{ // repaint everything 1791 repaintEverything(); 1792 return NO_ERROR; 1793 } 1794 case 1005:{ // force transaction 1795 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1796 return NO_ERROR; 1797 } 1798 case 1006:{ // send empty update 1799 signalRefresh(); 1800 return NO_ERROR; 1801 } 1802 case 1008: // toggle use of hw composer 1803 n = data.readInt32(); 1804 mDebugDisableHWC = n ? 1 : 0; 1805 invalidateHwcGeometry(); 1806 repaintEverything(); 1807 return NO_ERROR; 1808 case 1009: // toggle use of transform hint 1809 n = data.readInt32(); 1810 mDebugDisableTransformHint = n ? 1 : 0; 1811 invalidateHwcGeometry(); 1812 repaintEverything(); 1813 return NO_ERROR; 1814 case 1010: // interrogate. 1815 reply->writeInt32(0); 1816 reply->writeInt32(0); 1817 reply->writeInt32(mDebugRegion); 1818 reply->writeInt32(mDebugBackground); 1819 reply->writeInt32(mDebugDisableHWC); 1820 return NO_ERROR; 1821 case 1013: { 1822 Mutex::Autolock _l(mStateLock); 1823 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1824 reply->writeInt32(hw.getPageFlipCount()); 1825 } 1826 return NO_ERROR; 1827 } 1828 } 1829 return err; 1830} 1831 1832void SurfaceFlinger::repaintEverything() { 1833 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1834 const Rect bounds(hw.getBounds()); 1835 setInvalidateRegion(Region(bounds)); 1836 signalTransaction(); 1837} 1838 1839void SurfaceFlinger::setInvalidateRegion(const Region& reg) { 1840 Mutex::Autolock _l(mInvalidateLock); 1841 mInvalidateRegion = reg; 1842} 1843 1844Region SurfaceFlinger::getAndClearInvalidateRegion() { 1845 Mutex::Autolock _l(mInvalidateLock); 1846 Region reg(mInvalidateRegion); 1847 mInvalidateRegion.clear(); 1848 return reg; 1849} 1850 1851// --------------------------------------------------------------------------- 1852 1853status_t SurfaceFlinger::renderScreenToTexture(DisplayID dpy, 1854 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1855{ 1856 Mutex::Autolock _l(mStateLock); 1857 return renderScreenToTextureLocked(dpy, textureName, uOut, vOut); 1858} 1859 1860status_t SurfaceFlinger::renderScreenToTextureLocked(DisplayID dpy, 1861 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1862{ 1863 if (!GLExtensions::getInstance().haveFramebufferObject()) 1864 return INVALID_OPERATION; 1865 1866 // get screen geometry 1867 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 1868 const uint32_t hw_w = hw.getWidth(); 1869 const uint32_t hw_h = hw.getHeight(); 1870 GLfloat u = 1; 1871 GLfloat v = 1; 1872 1873 // make sure to clear all GL error flags 1874 while ( glGetError() != GL_NO_ERROR ) ; 1875 1876 // create a FBO 1877 GLuint name, tname; 1878 glGenTextures(1, &tname); 1879 glBindTexture(GL_TEXTURE_2D, tname); 1880 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1881 hw_w, hw_h, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1882 if (glGetError() != GL_NO_ERROR) { 1883 while ( glGetError() != GL_NO_ERROR ) ; 1884 GLint tw = (2 << (31 - clz(hw_w))); 1885 GLint th = (2 << (31 - clz(hw_h))); 1886 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1887 tw, th, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1888 u = GLfloat(hw_w) / tw; 1889 v = GLfloat(hw_h) / th; 1890 } 1891 glGenFramebuffersOES(1, &name); 1892 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 1893 glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, 1894 GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0); 1895 1896 // redraw the screen entirely... 1897 glDisable(GL_TEXTURE_EXTERNAL_OES); 1898 glDisable(GL_TEXTURE_2D); 1899 glDisable(GL_SCISSOR_TEST); 1900 glClearColor(0,0,0,1); 1901 glClear(GL_COLOR_BUFFER_BIT); 1902 glEnable(GL_SCISSOR_TEST); 1903 glMatrixMode(GL_MODELVIEW); 1904 glLoadIdentity(); 1905 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1906 const size_t count = layers.size(); 1907 for (size_t i=0 ; i<count ; ++i) { 1908 const sp<LayerBase>& layer(layers[i]); 1909 layer->drawForSreenShot(); 1910 } 1911 1912 hw.compositionComplete(); 1913 1914 // back to main framebuffer 1915 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1916 glDisable(GL_SCISSOR_TEST); 1917 glDeleteFramebuffersOES(1, &name); 1918 1919 *textureName = tname; 1920 *uOut = u; 1921 *vOut = v; 1922 return NO_ERROR; 1923} 1924 1925// --------------------------------------------------------------------------- 1926 1927status_t SurfaceFlinger::electronBeamOffAnimationImplLocked() 1928{ 1929 // get screen geometry 1930 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1931 const uint32_t hw_w = hw.getWidth(); 1932 const uint32_t hw_h = hw.getHeight(); 1933 const Region screenBounds(hw.getBounds()); 1934 1935 GLfloat u, v; 1936 GLuint tname; 1937 status_t result = renderScreenToTextureLocked(0, &tname, &u, &v); 1938 if (result != NO_ERROR) { 1939 return result; 1940 } 1941 1942 GLfloat vtx[8]; 1943 const GLfloat texCoords[4][2] = { {0,0}, {0,v}, {u,v}, {u,0} }; 1944 glBindTexture(GL_TEXTURE_2D, tname); 1945 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1946 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1947 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1948 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); 1949 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); 1950 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1951 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1952 glVertexPointer(2, GL_FLOAT, 0, vtx); 1953 1954 /* 1955 * Texture coordinate mapping 1956 * 1957 * u 1958 * 1 +----------+---+ 1959 * | | | | image is inverted 1960 * | V | | w.r.t. the texture 1961 * 1-v +----------+ | coordinates 1962 * | | 1963 * | | 1964 * | | 1965 * 0 +--------------+ 1966 * 0 1 1967 * 1968 */ 1969 1970 class s_curve_interpolator { 1971 const float nbFrames, s, v; 1972 public: 1973 s_curve_interpolator(int nbFrames, float s) 1974 : nbFrames(1.0f / (nbFrames-1)), s(s), 1975 v(1.0f + expf(-s + 0.5f*s)) { 1976 } 1977 float operator()(int f) { 1978 const float x = f * nbFrames; 1979 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1980 } 1981 }; 1982 1983 class v_stretch { 1984 const GLfloat hw_w, hw_h; 1985 public: 1986 v_stretch(uint32_t hw_w, uint32_t hw_h) 1987 : hw_w(hw_w), hw_h(hw_h) { 1988 } 1989 void operator()(GLfloat* vtx, float v) { 1990 const GLfloat w = hw_w + (hw_w * v); 1991 const GLfloat h = hw_h - (hw_h * v); 1992 const GLfloat x = (hw_w - w) * 0.5f; 1993 const GLfloat y = (hw_h - h) * 0.5f; 1994 vtx[0] = x; vtx[1] = y; 1995 vtx[2] = x; vtx[3] = y + h; 1996 vtx[4] = x + w; vtx[5] = y + h; 1997 vtx[6] = x + w; vtx[7] = y; 1998 } 1999 }; 2000 2001 class h_stretch { 2002 const GLfloat hw_w, hw_h; 2003 public: 2004 h_stretch(uint32_t hw_w, uint32_t hw_h) 2005 : hw_w(hw_w), hw_h(hw_h) { 2006 } 2007 void operator()(GLfloat* vtx, float v) { 2008 const GLfloat w = hw_w - (hw_w * v); 2009 const GLfloat h = 1.0f; 2010 const GLfloat x = (hw_w - w) * 0.5f; 2011 const GLfloat y = (hw_h - h) * 0.5f; 2012 vtx[0] = x; vtx[1] = y; 2013 vtx[2] = x; vtx[3] = y + h; 2014 vtx[4] = x + w; vtx[5] = y + h; 2015 vtx[6] = x + w; vtx[7] = y; 2016 } 2017 }; 2018 2019 // the full animation is 24 frames 2020 char value[PROPERTY_VALUE_MAX]; 2021 property_get("debug.sf.electron_frames", value, "24"); 2022 int nbFrames = (atoi(value) + 1) >> 1; 2023 if (nbFrames <= 0) // just in case 2024 nbFrames = 24; 2025 2026 s_curve_interpolator itr(nbFrames, 7.5f); 2027 s_curve_interpolator itg(nbFrames, 8.0f); 2028 s_curve_interpolator itb(nbFrames, 8.5f); 2029 2030 v_stretch vverts(hw_w, hw_h); 2031 2032 glMatrixMode(GL_TEXTURE); 2033 glLoadIdentity(); 2034 glMatrixMode(GL_MODELVIEW); 2035 glLoadIdentity(); 2036 2037 glEnable(GL_BLEND); 2038 glBlendFunc(GL_ONE, GL_ONE); 2039 for (int i=0 ; i<nbFrames ; i++) { 2040 float x, y, w, h; 2041 const float vr = itr(i); 2042 const float vg = itg(i); 2043 const float vb = itb(i); 2044 2045 // clear screen 2046 glColorMask(1,1,1,1); 2047 glClear(GL_COLOR_BUFFER_BIT); 2048 glEnable(GL_TEXTURE_2D); 2049 2050 // draw the red plane 2051 vverts(vtx, vr); 2052 glColorMask(1,0,0,1); 2053 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2054 2055 // draw the green plane 2056 vverts(vtx, vg); 2057 glColorMask(0,1,0,1); 2058 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2059 2060 // draw the blue plane 2061 vverts(vtx, vb); 2062 glColorMask(0,0,1,1); 2063 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2064 2065 // draw the white highlight (we use the last vertices) 2066 glDisable(GL_TEXTURE_2D); 2067 glColorMask(1,1,1,1); 2068 glColor4f(vg, vg, vg, 1); 2069 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2070 hw.flip(screenBounds); 2071 } 2072 2073 h_stretch hverts(hw_w, hw_h); 2074 glDisable(GL_BLEND); 2075 glDisable(GL_TEXTURE_2D); 2076 glColorMask(1,1,1,1); 2077 for (int i=0 ; i<nbFrames ; i++) { 2078 const float v = itg(i); 2079 hverts(vtx, v); 2080 glClear(GL_COLOR_BUFFER_BIT); 2081 glColor4f(1-v, 1-v, 1-v, 1); 2082 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2083 hw.flip(screenBounds); 2084 } 2085 2086 glColorMask(1,1,1,1); 2087 glEnable(GL_SCISSOR_TEST); 2088 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 2089 glDeleteTextures(1, &tname); 2090 glDisable(GL_TEXTURE_2D); 2091 glDisable(GL_BLEND); 2092 return NO_ERROR; 2093} 2094 2095status_t SurfaceFlinger::electronBeamOnAnimationImplLocked() 2096{ 2097 status_t result = PERMISSION_DENIED; 2098 2099 if (!GLExtensions::getInstance().haveFramebufferObject()) 2100 return INVALID_OPERATION; 2101 2102 2103 // get screen geometry 2104 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 2105 const uint32_t hw_w = hw.getWidth(); 2106 const uint32_t hw_h = hw.getHeight(); 2107 const Region screenBounds(hw.bounds()); 2108 2109 GLfloat u, v; 2110 GLuint tname; 2111 result = renderScreenToTextureLocked(0, &tname, &u, &v); 2112 if (result != NO_ERROR) { 2113 return result; 2114 } 2115 2116 GLfloat vtx[8]; 2117 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 2118 glBindTexture(GL_TEXTURE_2D, tname); 2119 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 2120 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 2121 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 2122 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); 2123 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); 2124 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 2125 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 2126 glVertexPointer(2, GL_FLOAT, 0, vtx); 2127 2128 class s_curve_interpolator { 2129 const float nbFrames, s, v; 2130 public: 2131 s_curve_interpolator(int nbFrames, float s) 2132 : nbFrames(1.0f / (nbFrames-1)), s(s), 2133 v(1.0f + expf(-s + 0.5f*s)) { 2134 } 2135 float operator()(int f) { 2136 const float x = f * nbFrames; 2137 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 2138 } 2139 }; 2140 2141 class v_stretch { 2142 const GLfloat hw_w, hw_h; 2143 public: 2144 v_stretch(uint32_t hw_w, uint32_t hw_h) 2145 : hw_w(hw_w), hw_h(hw_h) { 2146 } 2147 void operator()(GLfloat* vtx, float v) { 2148 const GLfloat w = hw_w + (hw_w * v); 2149 const GLfloat h = hw_h - (hw_h * v); 2150 const GLfloat x = (hw_w - w) * 0.5f; 2151 const GLfloat y = (hw_h - h) * 0.5f; 2152 vtx[0] = x; vtx[1] = y; 2153 vtx[2] = x; vtx[3] = y + h; 2154 vtx[4] = x + w; vtx[5] = y + h; 2155 vtx[6] = x + w; vtx[7] = y; 2156 } 2157 }; 2158 2159 class h_stretch { 2160 const GLfloat hw_w, hw_h; 2161 public: 2162 h_stretch(uint32_t hw_w, uint32_t hw_h) 2163 : hw_w(hw_w), hw_h(hw_h) { 2164 } 2165 void operator()(GLfloat* vtx, float v) { 2166 const GLfloat w = hw_w - (hw_w * v); 2167 const GLfloat h = 1.0f; 2168 const GLfloat x = (hw_w - w) * 0.5f; 2169 const GLfloat y = (hw_h - h) * 0.5f; 2170 vtx[0] = x; vtx[1] = y; 2171 vtx[2] = x; vtx[3] = y + h; 2172 vtx[4] = x + w; vtx[5] = y + h; 2173 vtx[6] = x + w; vtx[7] = y; 2174 } 2175 }; 2176 2177 // the full animation is 12 frames 2178 int nbFrames = 8; 2179 s_curve_interpolator itr(nbFrames, 7.5f); 2180 s_curve_interpolator itg(nbFrames, 8.0f); 2181 s_curve_interpolator itb(nbFrames, 8.5f); 2182 2183 h_stretch hverts(hw_w, hw_h); 2184 glDisable(GL_BLEND); 2185 glDisable(GL_TEXTURE_2D); 2186 glColorMask(1,1,1,1); 2187 for (int i=nbFrames-1 ; i>=0 ; i--) { 2188 const float v = itg(i); 2189 hverts(vtx, v); 2190 glClear(GL_COLOR_BUFFER_BIT); 2191 glColor4f(1-v, 1-v, 1-v, 1); 2192 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2193 hw.flip(screenBounds); 2194 } 2195 2196 nbFrames = 4; 2197 v_stretch vverts(hw_w, hw_h); 2198 glEnable(GL_BLEND); 2199 glBlendFunc(GL_ONE, GL_ONE); 2200 for (int i=nbFrames-1 ; i>=0 ; i--) { 2201 float x, y, w, h; 2202 const float vr = itr(i); 2203 const float vg = itg(i); 2204 const float vb = itb(i); 2205 2206 // clear screen 2207 glColorMask(1,1,1,1); 2208 glClear(GL_COLOR_BUFFER_BIT); 2209 glEnable(GL_TEXTURE_2D); 2210 2211 // draw the red plane 2212 vverts(vtx, vr); 2213 glColorMask(1,0,0,1); 2214 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2215 2216 // draw the green plane 2217 vverts(vtx, vg); 2218 glColorMask(0,1,0,1); 2219 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2220 2221 // draw the blue plane 2222 vverts(vtx, vb); 2223 glColorMask(0,0,1,1); 2224 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2225 2226 hw.flip(screenBounds); 2227 } 2228 2229 glColorMask(1,1,1,1); 2230 glEnable(GL_SCISSOR_TEST); 2231 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 2232 glDeleteTextures(1, &tname); 2233 glDisable(GL_TEXTURE_2D); 2234 glDisable(GL_BLEND); 2235 2236 return NO_ERROR; 2237} 2238 2239// --------------------------------------------------------------------------- 2240 2241status_t SurfaceFlinger::turnElectronBeamOffImplLocked(int32_t mode) 2242{ 2243 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2244 if (!hw.canDraw()) { 2245 // we're already off 2246 return NO_ERROR; 2247 } 2248 2249 // turn off hwc while we're doing the animation 2250 hw.getHwComposer().disable(); 2251 // and make sure to turn it back on (if needed) next time we compose 2252 invalidateHwcGeometry(); 2253 2254 if (mode & ISurfaceComposer::eElectronBeamAnimationOff) { 2255 electronBeamOffAnimationImplLocked(); 2256 } 2257 2258 // always clear the whole screen at the end of the animation 2259 glClearColor(0,0,0,1); 2260 glDisable(GL_SCISSOR_TEST); 2261 glClear(GL_COLOR_BUFFER_BIT); 2262 glEnable(GL_SCISSOR_TEST); 2263 hw.flip( Region(hw.bounds()) ); 2264 2265 return NO_ERROR; 2266} 2267 2268status_t SurfaceFlinger::turnElectronBeamOff(int32_t mode) 2269{ 2270 class MessageTurnElectronBeamOff : public MessageBase { 2271 SurfaceFlinger* flinger; 2272 int32_t mode; 2273 status_t result; 2274 public: 2275 MessageTurnElectronBeamOff(SurfaceFlinger* flinger, int32_t mode) 2276 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2277 } 2278 status_t getResult() const { 2279 return result; 2280 } 2281 virtual bool handler() { 2282 Mutex::Autolock _l(flinger->mStateLock); 2283 result = flinger->turnElectronBeamOffImplLocked(mode); 2284 return true; 2285 } 2286 }; 2287 2288 sp<MessageBase> msg = new MessageTurnElectronBeamOff(this, mode); 2289 status_t res = postMessageSync(msg); 2290 if (res == NO_ERROR) { 2291 res = static_cast<MessageTurnElectronBeamOff*>( msg.get() )->getResult(); 2292 2293 // work-around: when the power-manager calls us we activate the 2294 // animation. eventually, the "on" animation will be called 2295 // by the power-manager itself 2296 mElectronBeamAnimationMode = mode; 2297 } 2298 return res; 2299} 2300 2301// --------------------------------------------------------------------------- 2302 2303status_t SurfaceFlinger::turnElectronBeamOnImplLocked(int32_t mode) 2304{ 2305 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2306 if (hw.canDraw()) { 2307 // we're already on 2308 return NO_ERROR; 2309 } 2310 if (mode & ISurfaceComposer::eElectronBeamAnimationOn) { 2311 electronBeamOnAnimationImplLocked(); 2312 } 2313 2314 // make sure to redraw the whole screen when the animation is done 2315 mDirtyRegion.set(hw.bounds()); 2316 signalTransaction(); 2317 2318 return NO_ERROR; 2319} 2320 2321status_t SurfaceFlinger::turnElectronBeamOn(int32_t mode) 2322{ 2323 class MessageTurnElectronBeamOn : public MessageBase { 2324 SurfaceFlinger* flinger; 2325 int32_t mode; 2326 status_t result; 2327 public: 2328 MessageTurnElectronBeamOn(SurfaceFlinger* flinger, int32_t mode) 2329 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2330 } 2331 status_t getResult() const { 2332 return result; 2333 } 2334 virtual bool handler() { 2335 Mutex::Autolock _l(flinger->mStateLock); 2336 result = flinger->turnElectronBeamOnImplLocked(mode); 2337 return true; 2338 } 2339 }; 2340 2341 postMessageAsync( new MessageTurnElectronBeamOn(this, mode) ); 2342 return NO_ERROR; 2343} 2344 2345// --------------------------------------------------------------------------- 2346 2347status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy, 2348 sp<IMemoryHeap>* heap, 2349 uint32_t* w, uint32_t* h, PixelFormat* f, 2350 uint32_t sw, uint32_t sh, 2351 uint32_t minLayerZ, uint32_t maxLayerZ) 2352{ 2353 ATRACE_CALL(); 2354 2355 status_t result = PERMISSION_DENIED; 2356 2357 // only one display supported for now 2358 if (CC_UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2359 return BAD_VALUE; 2360 2361 if (!GLExtensions::getInstance().haveFramebufferObject()) 2362 return INVALID_OPERATION; 2363 2364 // get screen geometry 2365 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 2366 const uint32_t hw_w = hw.getWidth(); 2367 const uint32_t hw_h = hw.getHeight(); 2368 2369 if ((sw > hw_w) || (sh > hw_h)) 2370 return BAD_VALUE; 2371 2372 sw = (!sw) ? hw_w : sw; 2373 sh = (!sh) ? hw_h : sh; 2374 const size_t size = sw * sh * 4; 2375 2376 //ALOGD("screenshot: sw=%d, sh=%d, minZ=%d, maxZ=%d", 2377 // sw, sh, minLayerZ, maxLayerZ); 2378 2379 // make sure to clear all GL error flags 2380 while ( glGetError() != GL_NO_ERROR ) ; 2381 2382 // create a FBO 2383 GLuint name, tname; 2384 glGenRenderbuffersOES(1, &tname); 2385 glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname); 2386 glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh); 2387 2388 glGenFramebuffersOES(1, &name); 2389 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 2390 glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, 2391 GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname); 2392 2393 GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES); 2394 2395 if (status == GL_FRAMEBUFFER_COMPLETE_OES) { 2396 2397 // invert everything, b/c glReadPixel() below will invert the FB 2398 glViewport(0, 0, sw, sh); 2399 glScissor(0, 0, sw, sh); 2400 glEnable(GL_SCISSOR_TEST); 2401 glMatrixMode(GL_PROJECTION); 2402 glPushMatrix(); 2403 glLoadIdentity(); 2404 glOrthof(0, hw_w, hw_h, 0, 0, 1); 2405 glMatrixMode(GL_MODELVIEW); 2406 2407 // redraw the screen entirely... 2408 glClearColor(0,0,0,1); 2409 glClear(GL_COLOR_BUFFER_BIT); 2410 2411 const LayerVector& layers(mDrawingState.layersSortedByZ); 2412 const size_t count = layers.size(); 2413 for (size_t i=0 ; i<count ; ++i) { 2414 const sp<LayerBase>& layer(layers[i]); 2415 const uint32_t flags = layer->drawingState().flags; 2416 if (!(flags & ISurfaceComposer::eLayerHidden)) { 2417 const uint32_t z = layer->drawingState().z; 2418 if (z >= minLayerZ && z <= maxLayerZ) { 2419 layer->drawForSreenShot(); 2420 } 2421 } 2422 } 2423 2424 // XXX: this is needed on tegra 2425 glEnable(GL_SCISSOR_TEST); 2426 glScissor(0, 0, sw, sh); 2427 2428 // check for errors and return screen capture 2429 if (glGetError() != GL_NO_ERROR) { 2430 // error while rendering 2431 result = INVALID_OPERATION; 2432 } else { 2433 // allocate shared memory large enough to hold the 2434 // screen capture 2435 sp<MemoryHeapBase> base( 2436 new MemoryHeapBase(size, 0, "screen-capture") ); 2437 void* const ptr = base->getBase(); 2438 if (ptr) { 2439 // capture the screen with glReadPixels() 2440 ScopedTrace _t(ATRACE_TAG, "glReadPixels"); 2441 glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr); 2442 if (glGetError() == GL_NO_ERROR) { 2443 *heap = base; 2444 *w = sw; 2445 *h = sh; 2446 *f = PIXEL_FORMAT_RGBA_8888; 2447 result = NO_ERROR; 2448 } 2449 } else { 2450 result = NO_MEMORY; 2451 } 2452 } 2453 glEnable(GL_SCISSOR_TEST); 2454 glViewport(0, 0, hw_w, hw_h); 2455 glMatrixMode(GL_PROJECTION); 2456 glPopMatrix(); 2457 glMatrixMode(GL_MODELVIEW); 2458 } else { 2459 result = BAD_VALUE; 2460 } 2461 2462 // release FBO resources 2463 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 2464 glDeleteRenderbuffersOES(1, &tname); 2465 glDeleteFramebuffersOES(1, &name); 2466 2467 hw.compositionComplete(); 2468 2469 // ALOGD("screenshot: result = %s", result<0 ? strerror(result) : "OK"); 2470 2471 return result; 2472} 2473 2474 2475status_t SurfaceFlinger::captureScreen(DisplayID dpy, 2476 sp<IMemoryHeap>* heap, 2477 uint32_t* width, uint32_t* height, PixelFormat* format, 2478 uint32_t sw, uint32_t sh, 2479 uint32_t minLayerZ, uint32_t maxLayerZ) 2480{ 2481 // only one display supported for now 2482 if (CC_UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2483 return BAD_VALUE; 2484 2485 if (!GLExtensions::getInstance().haveFramebufferObject()) 2486 return INVALID_OPERATION; 2487 2488 class MessageCaptureScreen : public MessageBase { 2489 SurfaceFlinger* flinger; 2490 DisplayID dpy; 2491 sp<IMemoryHeap>* heap; 2492 uint32_t* w; 2493 uint32_t* h; 2494 PixelFormat* f; 2495 uint32_t sw; 2496 uint32_t sh; 2497 uint32_t minLayerZ; 2498 uint32_t maxLayerZ; 2499 status_t result; 2500 public: 2501 MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy, 2502 sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f, 2503 uint32_t sw, uint32_t sh, 2504 uint32_t minLayerZ, uint32_t maxLayerZ) 2505 : flinger(flinger), dpy(dpy), 2506 heap(heap), w(w), h(h), f(f), sw(sw), sh(sh), 2507 minLayerZ(minLayerZ), maxLayerZ(maxLayerZ), 2508 result(PERMISSION_DENIED) 2509 { 2510 } 2511 status_t getResult() const { 2512 return result; 2513 } 2514 virtual bool handler() { 2515 Mutex::Autolock _l(flinger->mStateLock); 2516 2517 // if we have secure windows, never allow the screen capture 2518 if (flinger->mSecureFrameBuffer) 2519 return true; 2520 2521 result = flinger->captureScreenImplLocked(dpy, 2522 heap, w, h, f, sw, sh, minLayerZ, maxLayerZ); 2523 2524 return true; 2525 } 2526 }; 2527 2528 sp<MessageBase> msg = new MessageCaptureScreen(this, 2529 dpy, heap, width, height, format, sw, sh, minLayerZ, maxLayerZ); 2530 status_t res = postMessageSync(msg); 2531 if (res == NO_ERROR) { 2532 res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult(); 2533 } 2534 return res; 2535} 2536 2537// --------------------------------------------------------------------------- 2538 2539sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const 2540{ 2541 sp<Layer> result; 2542 Mutex::Autolock _l(mStateLock); 2543 result = mLayerMap.valueFor( sur->asBinder() ).promote(); 2544 return result; 2545} 2546 2547// --------------------------------------------------------------------------- 2548 2549Client::Client(const sp<SurfaceFlinger>& flinger) 2550 : mFlinger(flinger), mNameGenerator(1) 2551{ 2552} 2553 2554Client::~Client() 2555{ 2556 const size_t count = mLayers.size(); 2557 for (size_t i=0 ; i<count ; i++) { 2558 sp<LayerBaseClient> layer(mLayers.valueAt(i).promote()); 2559 if (layer != 0) { 2560 mFlinger->removeLayer(layer); 2561 } 2562 } 2563} 2564 2565status_t Client::initCheck() const { 2566 return NO_ERROR; 2567} 2568 2569size_t Client::attachLayer(const sp<LayerBaseClient>& layer) 2570{ 2571 Mutex::Autolock _l(mLock); 2572 size_t name = mNameGenerator++; 2573 mLayers.add(name, layer); 2574 return name; 2575} 2576 2577void Client::detachLayer(const LayerBaseClient* layer) 2578{ 2579 Mutex::Autolock _l(mLock); 2580 // we do a linear search here, because this doesn't happen often 2581 const size_t count = mLayers.size(); 2582 for (size_t i=0 ; i<count ; i++) { 2583 if (mLayers.valueAt(i) == layer) { 2584 mLayers.removeItemsAt(i, 1); 2585 break; 2586 } 2587 } 2588} 2589sp<LayerBaseClient> Client::getLayerUser(int32_t i) const 2590{ 2591 Mutex::Autolock _l(mLock); 2592 sp<LayerBaseClient> lbc; 2593 wp<LayerBaseClient> layer(mLayers.valueFor(i)); 2594 if (layer != 0) { 2595 lbc = layer.promote(); 2596 ALOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i)); 2597 } 2598 return lbc; 2599} 2600 2601 2602status_t Client::onTransact( 2603 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 2604{ 2605 // these must be checked 2606 IPCThreadState* ipc = IPCThreadState::self(); 2607 const int pid = ipc->getCallingPid(); 2608 const int uid = ipc->getCallingUid(); 2609 const int self_pid = getpid(); 2610 if (CC_UNLIKELY(pid != self_pid && uid != AID_GRAPHICS && uid != 0)) { 2611 // we're called from a different process, do the real check 2612 if (!PermissionCache::checkCallingPermission(sAccessSurfaceFlinger)) 2613 { 2614 ALOGE("Permission Denial: " 2615 "can't openGlobalTransaction pid=%d, uid=%d", pid, uid); 2616 return PERMISSION_DENIED; 2617 } 2618 } 2619 return BnSurfaceComposerClient::onTransact(code, data, reply, flags); 2620} 2621 2622 2623sp<ISurface> Client::createSurface( 2624 ISurfaceComposerClient::surface_data_t* params, 2625 const String8& name, 2626 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2627 uint32_t flags) 2628{ 2629 /* 2630 * createSurface must be called from the GL thread so that it can 2631 * have access to the GL context. 2632 */ 2633 2634 class MessageCreateSurface : public MessageBase { 2635 sp<ISurface> result; 2636 SurfaceFlinger* flinger; 2637 ISurfaceComposerClient::surface_data_t* params; 2638 Client* client; 2639 const String8& name; 2640 DisplayID display; 2641 uint32_t w, h; 2642 PixelFormat format; 2643 uint32_t flags; 2644 public: 2645 MessageCreateSurface(SurfaceFlinger* flinger, 2646 ISurfaceComposerClient::surface_data_t* params, 2647 const String8& name, Client* client, 2648 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2649 uint32_t flags) 2650 : flinger(flinger), params(params), client(client), name(name), 2651 display(display), w(w), h(h), format(format), flags(flags) 2652 { 2653 } 2654 sp<ISurface> getResult() const { return result; } 2655 virtual bool handler() { 2656 result = flinger->createSurface(params, name, client, 2657 display, w, h, format, flags); 2658 return true; 2659 } 2660 }; 2661 2662 sp<MessageBase> msg = new MessageCreateSurface(mFlinger.get(), 2663 params, name, this, display, w, h, format, flags); 2664 mFlinger->postMessageSync(msg); 2665 return static_cast<MessageCreateSurface*>( msg.get() )->getResult(); 2666} 2667status_t Client::destroySurface(SurfaceID sid) { 2668 return mFlinger->removeSurface(this, sid); 2669} 2670 2671// --------------------------------------------------------------------------- 2672 2673GraphicBufferAlloc::GraphicBufferAlloc() {} 2674 2675GraphicBufferAlloc::~GraphicBufferAlloc() {} 2676 2677sp<GraphicBuffer> GraphicBufferAlloc::createGraphicBuffer(uint32_t w, uint32_t h, 2678 PixelFormat format, uint32_t usage, status_t* error) { 2679 sp<GraphicBuffer> graphicBuffer(new GraphicBuffer(w, h, format, usage)); 2680 status_t err = graphicBuffer->initCheck(); 2681 *error = err; 2682 if (err != 0 || graphicBuffer->handle == 0) { 2683 if (err == NO_MEMORY) { 2684 GraphicBuffer::dumpAllocationsToSystemLog(); 2685 } 2686 ALOGE("GraphicBufferAlloc::createGraphicBuffer(w=%d, h=%d) " 2687 "failed (%s), handle=%p", 2688 w, h, strerror(-err), graphicBuffer->handle); 2689 return 0; 2690 } 2691 return graphicBuffer; 2692} 2693 2694// --------------------------------------------------------------------------- 2695 2696GraphicPlane::GraphicPlane() 2697 : mHw(0) 2698{ 2699} 2700 2701GraphicPlane::~GraphicPlane() { 2702 delete mHw; 2703} 2704 2705bool GraphicPlane::initialized() const { 2706 return mHw ? true : false; 2707} 2708 2709int GraphicPlane::getWidth() const { 2710 return mWidth; 2711} 2712 2713int GraphicPlane::getHeight() const { 2714 return mHeight; 2715} 2716 2717void GraphicPlane::setDisplayHardware(DisplayHardware *hw) 2718{ 2719 mHw = hw; 2720 2721 // initialize the display orientation transform. 2722 // it's a constant that should come from the display driver. 2723 int displayOrientation = ISurfaceComposer::eOrientationDefault; 2724 char property[PROPERTY_VALUE_MAX]; 2725 if (property_get("ro.sf.hwrotation", property, NULL) > 0) { 2726 //displayOrientation 2727 switch (atoi(property)) { 2728 case 90: 2729 displayOrientation = ISurfaceComposer::eOrientation90; 2730 break; 2731 case 270: 2732 displayOrientation = ISurfaceComposer::eOrientation270; 2733 break; 2734 } 2735 } 2736 2737 const float w = hw->getWidth(); 2738 const float h = hw->getHeight(); 2739 GraphicPlane::orientationToTransfrom(displayOrientation, w, h, 2740 &mDisplayTransform); 2741 if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) { 2742 mDisplayWidth = h; 2743 mDisplayHeight = w; 2744 } else { 2745 mDisplayWidth = w; 2746 mDisplayHeight = h; 2747 } 2748 2749 setOrientation(ISurfaceComposer::eOrientationDefault); 2750} 2751 2752status_t GraphicPlane::orientationToTransfrom( 2753 int orientation, int w, int h, Transform* tr) 2754{ 2755 uint32_t flags = 0; 2756 switch (orientation) { 2757 case ISurfaceComposer::eOrientationDefault: 2758 flags = Transform::ROT_0; 2759 break; 2760 case ISurfaceComposer::eOrientation90: 2761 flags = Transform::ROT_90; 2762 break; 2763 case ISurfaceComposer::eOrientation180: 2764 flags = Transform::ROT_180; 2765 break; 2766 case ISurfaceComposer::eOrientation270: 2767 flags = Transform::ROT_270; 2768 break; 2769 default: 2770 return BAD_VALUE; 2771 } 2772 tr->set(flags, w, h); 2773 return NO_ERROR; 2774} 2775 2776status_t GraphicPlane::setOrientation(int orientation) 2777{ 2778 // If the rotation can be handled in hardware, this is where 2779 // the magic should happen. 2780 2781 const DisplayHardware& hw(displayHardware()); 2782 const float w = mDisplayWidth; 2783 const float h = mDisplayHeight; 2784 mWidth = int(w); 2785 mHeight = int(h); 2786 2787 Transform orientationTransform; 2788 GraphicPlane::orientationToTransfrom(orientation, w, h, 2789 &orientationTransform); 2790 if (orientation & ISurfaceComposer::eOrientationSwapMask) { 2791 mWidth = int(h); 2792 mHeight = int(w); 2793 } 2794 2795 mOrientation = orientation; 2796 mGlobalTransform = mDisplayTransform * orientationTransform; 2797 return NO_ERROR; 2798} 2799 2800const DisplayHardware& GraphicPlane::displayHardware() const { 2801 return *mHw; 2802} 2803 2804DisplayHardware& GraphicPlane::editDisplayHardware() { 2805 return *mHw; 2806} 2807 2808const Transform& GraphicPlane::transform() const { 2809 return mGlobalTransform; 2810} 2811 2812EGLDisplay GraphicPlane::getEGLDisplay() const { 2813 return mHw->getEGLDisplay(); 2814} 2815 2816// --------------------------------------------------------------------------- 2817 2818}; // namespace android 2819