SurfaceFlinger.cpp revision f20a32415d055336bc6016fa2de36d126db32746
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include <stdlib.h> 18#include <stdio.h> 19#include <stdint.h> 20#include <unistd.h> 21#include <fcntl.h> 22#include <errno.h> 23#include <math.h> 24#include <limits.h> 25#include <sys/types.h> 26#include <sys/stat.h> 27#include <sys/ioctl.h> 28 29#include <cutils/log.h> 30#include <cutils/properties.h> 31 32#include <binder/IPCThreadState.h> 33#include <binder/IServiceManager.h> 34#include <binder/MemoryHeapBase.h> 35 36#include <utils/String8.h> 37#include <utils/String16.h> 38#include <utils/StopWatch.h> 39 40#include <ui/GraphicBufferAllocator.h> 41#include <ui/GraphicLog.h> 42#include <ui/PixelFormat.h> 43 44#include <pixelflinger/pixelflinger.h> 45#include <GLES/gl.h> 46 47#include "clz.h" 48#include "GLExtensions.h" 49#include "Layer.h" 50#include "LayerDim.h" 51#include "SurfaceFlinger.h" 52 53#include "DisplayHardware/DisplayHardware.h" 54#include "DisplayHardware/HWComposer.h" 55 56/* ideally AID_GRAPHICS would be in a semi-public header 57 * or there would be a way to map a user/group name to its id 58 */ 59#ifndef AID_GRAPHICS 60#define AID_GRAPHICS 1003 61#endif 62 63#define DISPLAY_COUNT 1 64 65namespace android { 66// --------------------------------------------------------------------------- 67 68SurfaceFlinger::SurfaceFlinger() 69 : BnSurfaceComposer(), Thread(false), 70 mTransactionFlags(0), 71 mTransactionCount(0), 72 mResizeTransationPending(false), 73 mLayersRemoved(false), 74 mBootTime(systemTime()), 75 mHardwareTest("android.permission.HARDWARE_TEST"), 76 mAccessSurfaceFlinger("android.permission.ACCESS_SURFACE_FLINGER"), 77 mReadFramebuffer("android.permission.READ_FRAME_BUFFER"), 78 mDump("android.permission.DUMP"), 79 mVisibleRegionsDirty(false), 80 mHwWorkListDirty(false), 81 mDeferReleaseConsole(false), 82 mFreezeDisplay(false), 83 mElectronBeamAnimationMode(0), 84 mFreezeCount(0), 85 mFreezeDisplayTime(0), 86 mDebugRegion(0), 87 mDebugBackground(0), 88 mDebugDisableHWC(0), 89 mDebugInSwapBuffers(0), 90 mLastSwapBufferTime(0), 91 mDebugInTransaction(0), 92 mLastTransactionTime(0), 93 mBootFinished(false), 94 mConsoleSignals(0), 95 mSecureFrameBuffer(0) 96{ 97 init(); 98} 99 100void SurfaceFlinger::init() 101{ 102 LOGI("SurfaceFlinger is starting"); 103 104 // debugging stuff... 105 char value[PROPERTY_VALUE_MAX]; 106 property_get("debug.sf.showupdates", value, "0"); 107 mDebugRegion = atoi(value); 108 property_get("debug.sf.showbackground", value, "0"); 109 mDebugBackground = atoi(value); 110 111 LOGI_IF(mDebugRegion, "showupdates enabled"); 112 LOGI_IF(mDebugBackground, "showbackground enabled"); 113} 114 115SurfaceFlinger::~SurfaceFlinger() 116{ 117 glDeleteTextures(1, &mWormholeTexName); 118} 119 120sp<IMemoryHeap> SurfaceFlinger::getCblk() const 121{ 122 return mServerHeap; 123} 124 125sp<ISurfaceComposerClient> SurfaceFlinger::createConnection() 126{ 127 sp<ISurfaceComposerClient> bclient; 128 sp<Client> client(new Client(this)); 129 status_t err = client->initCheck(); 130 if (err == NO_ERROR) { 131 bclient = client; 132 } 133 return bclient; 134} 135 136sp<ISurfaceComposerClient> SurfaceFlinger::createClientConnection() 137{ 138 sp<ISurfaceComposerClient> bclient; 139 sp<UserClient> client(new UserClient(this)); 140 status_t err = client->initCheck(); 141 if (err == NO_ERROR) { 142 bclient = client; 143 } 144 return bclient; 145} 146 147sp<IGraphicBufferAlloc> SurfaceFlinger::createGraphicBufferAlloc() 148{ 149 sp<GraphicBufferAlloc> gba(new GraphicBufferAlloc()); 150 return gba; 151} 152 153const GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) const 154{ 155 LOGE_IF(uint32_t(dpy) >= DISPLAY_COUNT, "Invalid DisplayID %d", dpy); 156 const GraphicPlane& plane(mGraphicPlanes[dpy]); 157 return plane; 158} 159 160GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) 161{ 162 return const_cast<GraphicPlane&>( 163 const_cast<SurfaceFlinger const *>(this)->graphicPlane(dpy)); 164} 165 166void SurfaceFlinger::bootFinished() 167{ 168 const nsecs_t now = systemTime(); 169 const nsecs_t duration = now - mBootTime; 170 LOGI("Boot is finished (%ld ms)", long(ns2ms(duration)) ); 171 mBootFinished = true; 172 property_set("ctl.stop", "bootanim"); 173} 174 175void SurfaceFlinger::onFirstRef() 176{ 177 run("SurfaceFlinger", PRIORITY_URGENT_DISPLAY); 178 179 // Wait for the main thread to be done with its initialization 180 mReadyToRunBarrier.wait(); 181} 182 183static inline uint16_t pack565(int r, int g, int b) { 184 return (r<<11)|(g<<5)|b; 185} 186 187status_t SurfaceFlinger::readyToRun() 188{ 189 LOGI( "SurfaceFlinger's main thread ready to run. " 190 "Initializing graphics H/W..."); 191 192 // we only support one display currently 193 int dpy = 0; 194 195 { 196 // initialize the main display 197 GraphicPlane& plane(graphicPlane(dpy)); 198 DisplayHardware* const hw = new DisplayHardware(this, dpy); 199 plane.setDisplayHardware(hw); 200 } 201 202 // create the shared control-block 203 mServerHeap = new MemoryHeapBase(4096, 204 MemoryHeapBase::READ_ONLY, "SurfaceFlinger read-only heap"); 205 LOGE_IF(mServerHeap==0, "can't create shared memory dealer"); 206 207 mServerCblk = static_cast<surface_flinger_cblk_t*>(mServerHeap->getBase()); 208 LOGE_IF(mServerCblk==0, "can't get to shared control block's address"); 209 210 new(mServerCblk) surface_flinger_cblk_t; 211 212 // initialize primary screen 213 // (other display should be initialized in the same manner, but 214 // asynchronously, as they could come and go. None of this is supported 215 // yet). 216 const GraphicPlane& plane(graphicPlane(dpy)); 217 const DisplayHardware& hw = plane.displayHardware(); 218 const uint32_t w = hw.getWidth(); 219 const uint32_t h = hw.getHeight(); 220 const uint32_t f = hw.getFormat(); 221 hw.makeCurrent(); 222 223 // initialize the shared control block 224 mServerCblk->connected |= 1<<dpy; 225 display_cblk_t* dcblk = mServerCblk->displays + dpy; 226 memset(dcblk, 0, sizeof(display_cblk_t)); 227 dcblk->w = plane.getWidth(); 228 dcblk->h = plane.getHeight(); 229 dcblk->format = f; 230 dcblk->orientation = ISurfaceComposer::eOrientationDefault; 231 dcblk->xdpi = hw.getDpiX(); 232 dcblk->ydpi = hw.getDpiY(); 233 dcblk->fps = hw.getRefreshRate(); 234 dcblk->density = hw.getDensity(); 235 236 // Initialize OpenGL|ES 237 glPixelStorei(GL_UNPACK_ALIGNMENT, 4); 238 glPixelStorei(GL_PACK_ALIGNMENT, 4); 239 glEnableClientState(GL_VERTEX_ARRAY); 240 glEnable(GL_SCISSOR_TEST); 241 glShadeModel(GL_FLAT); 242 glDisable(GL_DITHER); 243 glDisable(GL_CULL_FACE); 244 245 const uint16_t g0 = pack565(0x0F,0x1F,0x0F); 246 const uint16_t g1 = pack565(0x17,0x2f,0x17); 247 const uint16_t textureData[4] = { g0, g1, g1, g0 }; 248 glGenTextures(1, &mWormholeTexName); 249 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 250 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 251 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 252 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 253 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 254 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, 255 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, textureData); 256 257 glViewport(0, 0, w, h); 258 glMatrixMode(GL_PROJECTION); 259 glLoadIdentity(); 260 glOrthof(0, w, h, 0, 0, 1); 261 262 LayerDim::initDimmer(this, w, h); 263 264 mReadyToRunBarrier.open(); 265 266 /* 267 * We're now ready to accept clients... 268 */ 269 270 // start boot animation 271 property_set("ctl.start", "bootanim"); 272 273 return NO_ERROR; 274} 275 276// ---------------------------------------------------------------------------- 277#if 0 278#pragma mark - 279#pragma mark Events Handler 280#endif 281 282void SurfaceFlinger::waitForEvent() 283{ 284 while (true) { 285 nsecs_t timeout = -1; 286 const nsecs_t freezeDisplayTimeout = ms2ns(5000); 287 if (UNLIKELY(isFrozen())) { 288 // wait 5 seconds 289 const nsecs_t now = systemTime(); 290 if (mFreezeDisplayTime == 0) { 291 mFreezeDisplayTime = now; 292 } 293 nsecs_t waitTime = freezeDisplayTimeout - (now - mFreezeDisplayTime); 294 timeout = waitTime>0 ? waitTime : 0; 295 } 296 297 sp<MessageBase> msg = mEventQueue.waitMessage(timeout); 298 299 // see if we timed out 300 if (isFrozen()) { 301 const nsecs_t now = systemTime(); 302 nsecs_t frozenTime = (now - mFreezeDisplayTime); 303 if (frozenTime >= freezeDisplayTimeout) { 304 // we timed out and are still frozen 305 LOGW("timeout expired mFreezeDisplay=%d, mFreezeCount=%d", 306 mFreezeDisplay, mFreezeCount); 307 mFreezeDisplayTime = 0; 308 mFreezeCount = 0; 309 mFreezeDisplay = false; 310 } 311 } 312 313 if (msg != 0) { 314 switch (msg->what) { 315 case MessageQueue::INVALIDATE: 316 // invalidate message, just return to the main loop 317 return; 318 } 319 } 320 } 321} 322 323void SurfaceFlinger::signalEvent() { 324 mEventQueue.invalidate(); 325} 326 327void SurfaceFlinger::signal() const { 328 // this is the IPC call 329 const_cast<SurfaceFlinger*>(this)->signalEvent(); 330} 331 332status_t SurfaceFlinger::postMessageAsync(const sp<MessageBase>& msg, 333 nsecs_t reltime, uint32_t flags) 334{ 335 return mEventQueue.postMessage(msg, reltime, flags); 336} 337 338status_t SurfaceFlinger::postMessageSync(const sp<MessageBase>& msg, 339 nsecs_t reltime, uint32_t flags) 340{ 341 status_t res = mEventQueue.postMessage(msg, reltime, flags); 342 if (res == NO_ERROR) { 343 msg->wait(); 344 } 345 return res; 346} 347 348// ---------------------------------------------------------------------------- 349#if 0 350#pragma mark - 351#pragma mark Main loop 352#endif 353 354bool SurfaceFlinger::threadLoop() 355{ 356 waitForEvent(); 357 358 // check for transactions 359 if (UNLIKELY(mConsoleSignals)) { 360 handleConsoleEvents(); 361 } 362 363 if (LIKELY(mTransactionCount == 0)) { 364 // if we're in a global transaction, don't do anything. 365 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 366 uint32_t transactionFlags = getTransactionFlags(mask); 367 if (LIKELY(transactionFlags)) { 368 handleTransaction(transactionFlags); 369 } 370 } 371 372 // post surfaces (if needed) 373 handlePageFlip(); 374 375 if (UNLIKELY(mHwWorkListDirty)) { 376 // build the h/w work list 377 handleWorkList(); 378 } 379 380 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 381 if (LIKELY(hw.canDraw() && !isFrozen())) { 382 // repaint the framebuffer (if needed) 383 384 const int index = hw.getCurrentBufferIndex(); 385 GraphicLog& logger(GraphicLog::getInstance()); 386 387 logger.log(GraphicLog::SF_REPAINT, index); 388 handleRepaint(); 389 390 // inform the h/w that we're done compositing 391 logger.log(GraphicLog::SF_COMPOSITION_COMPLETE, index); 392 hw.compositionComplete(); 393 394 logger.log(GraphicLog::SF_SWAP_BUFFERS, index); 395 postFramebuffer(); 396 397 logger.log(GraphicLog::SF_UNLOCK_CLIENTS, index); 398 unlockClients(); 399 400 logger.log(GraphicLog::SF_REPAINT_DONE, index); 401 } else { 402 // pretend we did the post 403 hw.compositionComplete(); 404 unlockClients(); 405 usleep(16667); // 60 fps period 406 } 407 return true; 408} 409 410void SurfaceFlinger::postFramebuffer() 411{ 412 if (!mInvalidRegion.isEmpty()) { 413 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 414 const nsecs_t now = systemTime(); 415 mDebugInSwapBuffers = now; 416 hw.flip(mInvalidRegion); 417 mLastSwapBufferTime = systemTime() - now; 418 mDebugInSwapBuffers = 0; 419 mInvalidRegion.clear(); 420 } 421} 422 423void SurfaceFlinger::handleConsoleEvents() 424{ 425 // something to do with the console 426 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 427 428 int what = android_atomic_and(0, &mConsoleSignals); 429 if (what & eConsoleAcquired) { 430 hw.acquireScreen(); 431 // this is a temporary work-around, eventually this should be called 432 // by the power-manager 433 SurfaceFlinger::turnElectronBeamOn(mElectronBeamAnimationMode); 434 } 435 436 if (mDeferReleaseConsole && hw.isScreenAcquired()) { 437 // We got the release signal before the acquire signal 438 mDeferReleaseConsole = false; 439 hw.releaseScreen(); 440 } 441 442 if (what & eConsoleReleased) { 443 if (hw.isScreenAcquired()) { 444 hw.releaseScreen(); 445 } else { 446 mDeferReleaseConsole = true; 447 } 448 } 449 450 mDirtyRegion.set(hw.bounds()); 451} 452 453void SurfaceFlinger::handleTransaction(uint32_t transactionFlags) 454{ 455 Vector< sp<LayerBase> > ditchedLayers; 456 457 /* 458 * Perform and commit the transaction 459 */ 460 461 { // scope for the lock 462 Mutex::Autolock _l(mStateLock); 463 const nsecs_t now = systemTime(); 464 mDebugInTransaction = now; 465 handleTransactionLocked(transactionFlags, ditchedLayers); 466 mLastTransactionTime = systemTime() - now; 467 mDebugInTransaction = 0; 468 invalidateHwcGeometry(); 469 // here the transaction has been committed 470 } 471 472 /* 473 * Clean-up all layers that went away 474 * (do this without the lock held) 475 */ 476 477 const size_t count = ditchedLayers.size(); 478 for (size_t i=0 ; i<count ; i++) { 479 if (ditchedLayers[i] != 0) { 480 //LOGD("ditching layer %p", ditchedLayers[i].get()); 481 ditchedLayers[i]->ditch(); 482 } 483 } 484} 485 486void SurfaceFlinger::handleTransactionLocked( 487 uint32_t transactionFlags, Vector< sp<LayerBase> >& ditchedLayers) 488{ 489 const LayerVector& currentLayers(mCurrentState.layersSortedByZ); 490 const size_t count = currentLayers.size(); 491 492 /* 493 * Traversal of the children 494 * (perform the transaction for each of them if needed) 495 */ 496 497 const bool layersNeedTransaction = transactionFlags & eTraversalNeeded; 498 if (layersNeedTransaction) { 499 for (size_t i=0 ; i<count ; i++) { 500 const sp<LayerBase>& layer = currentLayers[i]; 501 uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded); 502 if (!trFlags) continue; 503 504 const uint32_t flags = layer->doTransaction(0); 505 if (flags & Layer::eVisibleRegion) 506 mVisibleRegionsDirty = true; 507 } 508 } 509 510 /* 511 * Perform our own transaction if needed 512 */ 513 514 if (transactionFlags & eTransactionNeeded) { 515 if (mCurrentState.orientation != mDrawingState.orientation) { 516 // the orientation has changed, recompute all visible regions 517 // and invalidate everything. 518 519 const int dpy = 0; 520 const int orientation = mCurrentState.orientation; 521 const uint32_t type = mCurrentState.orientationType; 522 GraphicPlane& plane(graphicPlane(dpy)); 523 plane.setOrientation(orientation); 524 525 // update the shared control block 526 const DisplayHardware& hw(plane.displayHardware()); 527 volatile display_cblk_t* dcblk = mServerCblk->displays + dpy; 528 dcblk->orientation = orientation; 529 dcblk->w = plane.getWidth(); 530 dcblk->h = plane.getHeight(); 531 532 mVisibleRegionsDirty = true; 533 mDirtyRegion.set(hw.bounds()); 534 } 535 536 if (mCurrentState.freezeDisplay != mDrawingState.freezeDisplay) { 537 // freezing or unfreezing the display -> trigger animation if needed 538 mFreezeDisplay = mCurrentState.freezeDisplay; 539 if (mFreezeDisplay) 540 mFreezeDisplayTime = 0; 541 } 542 543 if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) { 544 // layers have been added 545 mVisibleRegionsDirty = true; 546 } 547 548 // some layers might have been removed, so 549 // we need to update the regions they're exposing. 550 if (mLayersRemoved) { 551 mLayersRemoved = false; 552 mVisibleRegionsDirty = true; 553 const LayerVector& previousLayers(mDrawingState.layersSortedByZ); 554 const size_t count = previousLayers.size(); 555 for (size_t i=0 ; i<count ; i++) { 556 const sp<LayerBase>& layer(previousLayers[i]); 557 if (currentLayers.indexOf( layer ) < 0) { 558 // this layer is not visible anymore 559 ditchedLayers.add(layer); 560 mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen); 561 } 562 } 563 } 564 } 565 566 commitTransaction(); 567} 568 569sp<FreezeLock> SurfaceFlinger::getFreezeLock() const 570{ 571 return new FreezeLock(const_cast<SurfaceFlinger *>(this)); 572} 573 574void SurfaceFlinger::computeVisibleRegions( 575 LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion) 576{ 577 const GraphicPlane& plane(graphicPlane(0)); 578 const Transform& planeTransform(plane.transform()); 579 const DisplayHardware& hw(plane.displayHardware()); 580 const Region screenRegion(hw.bounds()); 581 582 Region aboveOpaqueLayers; 583 Region aboveCoveredLayers; 584 Region dirty; 585 586 bool secureFrameBuffer = false; 587 588 size_t i = currentLayers.size(); 589 while (i--) { 590 const sp<LayerBase>& layer = currentLayers[i]; 591 layer->validateVisibility(planeTransform); 592 593 // start with the whole surface at its current location 594 const Layer::State& s(layer->drawingState()); 595 596 /* 597 * opaqueRegion: area of a surface that is fully opaque. 598 */ 599 Region opaqueRegion; 600 601 /* 602 * visibleRegion: area of a surface that is visible on screen 603 * and not fully transparent. This is essentially the layer's 604 * footprint minus the opaque regions above it. 605 * Areas covered by a translucent surface are considered visible. 606 */ 607 Region visibleRegion; 608 609 /* 610 * coveredRegion: area of a surface that is covered by all 611 * visible regions above it (which includes the translucent areas). 612 */ 613 Region coveredRegion; 614 615 616 // handle hidden surfaces by setting the visible region to empty 617 if (LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) { 618 const bool translucent = layer->needsBlending(); 619 const Rect bounds(layer->visibleBounds()); 620 visibleRegion.set(bounds); 621 visibleRegion.andSelf(screenRegion); 622 if (!visibleRegion.isEmpty()) { 623 // Remove the transparent area from the visible region 624 if (translucent) { 625 visibleRegion.subtractSelf(layer->transparentRegionScreen); 626 } 627 628 // compute the opaque region 629 const int32_t layerOrientation = layer->getOrientation(); 630 if (s.alpha==255 && !translucent && 631 ((layerOrientation & Transform::ROT_INVALID) == false)) { 632 // the opaque region is the layer's footprint 633 opaqueRegion = visibleRegion; 634 } 635 } 636 } 637 638 // Clip the covered region to the visible region 639 coveredRegion = aboveCoveredLayers.intersect(visibleRegion); 640 641 // Update aboveCoveredLayers for next (lower) layer 642 aboveCoveredLayers.orSelf(visibleRegion); 643 644 // subtract the opaque region covered by the layers above us 645 visibleRegion.subtractSelf(aboveOpaqueLayers); 646 647 // compute this layer's dirty region 648 if (layer->contentDirty) { 649 // we need to invalidate the whole region 650 dirty = visibleRegion; 651 // as well, as the old visible region 652 dirty.orSelf(layer->visibleRegionScreen); 653 layer->contentDirty = false; 654 } else { 655 /* compute the exposed region: 656 * the exposed region consists of two components: 657 * 1) what's VISIBLE now and was COVERED before 658 * 2) what's EXPOSED now less what was EXPOSED before 659 * 660 * note that (1) is conservative, we start with the whole 661 * visible region but only keep what used to be covered by 662 * something -- which mean it may have been exposed. 663 * 664 * (2) handles areas that were not covered by anything but got 665 * exposed because of a resize. 666 */ 667 const Region newExposed = visibleRegion - coveredRegion; 668 const Region oldVisibleRegion = layer->visibleRegionScreen; 669 const Region oldCoveredRegion = layer->coveredRegionScreen; 670 const Region oldExposed = oldVisibleRegion - oldCoveredRegion; 671 dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed); 672 } 673 dirty.subtractSelf(aboveOpaqueLayers); 674 675 // accumulate to the screen dirty region 676 dirtyRegion.orSelf(dirty); 677 678 // Update aboveOpaqueLayers for next (lower) layer 679 aboveOpaqueLayers.orSelf(opaqueRegion); 680 681 // Store the visible region is screen space 682 layer->setVisibleRegion(visibleRegion); 683 layer->setCoveredRegion(coveredRegion); 684 685 // If a secure layer is partially visible, lock-down the screen! 686 if (layer->isSecure() && !visibleRegion.isEmpty()) { 687 secureFrameBuffer = true; 688 } 689 } 690 691 // invalidate the areas where a layer was removed 692 dirtyRegion.orSelf(mDirtyRegionRemovedLayer); 693 mDirtyRegionRemovedLayer.clear(); 694 695 mSecureFrameBuffer = secureFrameBuffer; 696 opaqueRegion = aboveOpaqueLayers; 697} 698 699 700void SurfaceFlinger::commitTransaction() 701{ 702 mDrawingState = mCurrentState; 703 mResizeTransationPending = false; 704 mTransactionCV.broadcast(); 705} 706 707void SurfaceFlinger::handlePageFlip() 708{ 709 bool visibleRegions = mVisibleRegionsDirty; 710 LayerVector& currentLayers( 711 const_cast<LayerVector&>(mDrawingState.layersSortedByZ)); 712 visibleRegions |= lockPageFlip(currentLayers); 713 714 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 715 const Region screenRegion(hw.bounds()); 716 if (visibleRegions) { 717 Region opaqueRegion; 718 computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion); 719 720 /* 721 * rebuild the visible layer list 722 */ 723 mVisibleLayersSortedByZ.clear(); 724 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 725 size_t count = currentLayers.size(); 726 mVisibleLayersSortedByZ.setCapacity(count); 727 for (size_t i=0 ; i<count ; i++) { 728 if (!currentLayers[i]->visibleRegionScreen.isEmpty()) 729 mVisibleLayersSortedByZ.add(currentLayers[i]); 730 } 731 732 mWormholeRegion = screenRegion.subtract(opaqueRegion); 733 mVisibleRegionsDirty = false; 734 invalidateHwcGeometry(); 735 } 736 737 unlockPageFlip(currentLayers); 738 mDirtyRegion.andSelf(screenRegion); 739} 740 741void SurfaceFlinger::invalidateHwcGeometry() 742{ 743 mHwWorkListDirty = true; 744} 745 746bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers) 747{ 748 bool recomputeVisibleRegions = false; 749 size_t count = currentLayers.size(); 750 sp<LayerBase> const* layers = currentLayers.array(); 751 for (size_t i=0 ; i<count ; i++) { 752 const sp<LayerBase>& layer(layers[i]); 753 layer->lockPageFlip(recomputeVisibleRegions); 754 } 755 return recomputeVisibleRegions; 756} 757 758void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers) 759{ 760 const GraphicPlane& plane(graphicPlane(0)); 761 const Transform& planeTransform(plane.transform()); 762 size_t count = currentLayers.size(); 763 sp<LayerBase> const* layers = currentLayers.array(); 764 for (size_t i=0 ; i<count ; i++) { 765 const sp<LayerBase>& layer(layers[i]); 766 layer->unlockPageFlip(planeTransform, mDirtyRegion); 767 } 768} 769 770void SurfaceFlinger::handleWorkList() 771{ 772 mHwWorkListDirty = false; 773 HWComposer& hwc(graphicPlane(0).displayHardware().getHwComposer()); 774 if (hwc.initCheck() == NO_ERROR) { 775 const Vector< sp<LayerBase> >& currentLayers(mVisibleLayersSortedByZ); 776 const size_t count = currentLayers.size(); 777 hwc.createWorkList(count); 778 hwc_layer_t* const cur(hwc.getLayers()); 779 for (size_t i=0 ; cur && i<count ; i++) { 780 currentLayers[i]->setGeometry(&cur[i]); 781 if (mDebugDisableHWC) { 782 cur[i].compositionType = HWC_FRAMEBUFFER; 783 cur[i].flags |= HWC_SKIP_LAYER; 784 } 785 } 786 } 787} 788 789void SurfaceFlinger::handleRepaint() 790{ 791 // compute the invalid region 792 mInvalidRegion.orSelf(mDirtyRegion); 793 794 if (UNLIKELY(mDebugRegion)) { 795 debugFlashRegions(); 796 } 797 798 // set the frame buffer 799 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 800 glMatrixMode(GL_MODELVIEW); 801 glLoadIdentity(); 802 803 uint32_t flags = hw.getFlags(); 804 if ((flags & DisplayHardware::SWAP_RECTANGLE) || 805 (flags & DisplayHardware::BUFFER_PRESERVED)) 806 { 807 // we can redraw only what's dirty, but since SWAP_RECTANGLE only 808 // takes a rectangle, we must make sure to update that whole 809 // rectangle in that case 810 if (flags & DisplayHardware::SWAP_RECTANGLE) { 811 // TODO: we really should be able to pass a region to 812 // SWAP_RECTANGLE so that we don't have to redraw all this. 813 mDirtyRegion.set(mInvalidRegion.bounds()); 814 } else { 815 // in the BUFFER_PRESERVED case, obviously, we can update only 816 // what's needed and nothing more. 817 // NOTE: this is NOT a common case, as preserving the backbuffer 818 // is costly and usually involves copying the whole update back. 819 } 820 } else { 821 if (flags & DisplayHardware::PARTIAL_UPDATES) { 822 // We need to redraw the rectangle that will be updated 823 // (pushed to the framebuffer). 824 // This is needed because PARTIAL_UPDATES only takes one 825 // rectangle instead of a region (see DisplayHardware::flip()) 826 mDirtyRegion.set(mInvalidRegion.bounds()); 827 } else { 828 // we need to redraw everything (the whole screen) 829 mDirtyRegion.set(hw.bounds()); 830 mInvalidRegion = mDirtyRegion; 831 } 832 } 833 834 // compose all surfaces 835 composeSurfaces(mDirtyRegion); 836 837 // clear the dirty regions 838 mDirtyRegion.clear(); 839} 840 841void SurfaceFlinger::composeSurfaces(const Region& dirty) 842{ 843 if (UNLIKELY(!mWormholeRegion.isEmpty())) { 844 // should never happen unless the window manager has a bug 845 // draw something... 846 drawWormhole(); 847 } 848 849 status_t err = NO_ERROR; 850 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 851 size_t count = layers.size(); 852 853 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 854 HWComposer& hwc(hw.getHwComposer()); 855 hwc_layer_t* const cur(hwc.getLayers()); 856 857 LOGE_IF(cur && hwc.getNumLayers() != count, 858 "HAL number of layers (%d) doesn't match surfaceflinger (%d)", 859 hwc.getNumLayers(), count); 860 861 // just to be extra-safe, use the smallest count 862 if (hwc.initCheck() == NO_ERROR) { 863 count = count < hwc.getNumLayers() ? count : hwc.getNumLayers(); 864 } 865 866 /* 867 * update the per-frame h/w composer data for each layer 868 * and build the transparent region of the FB 869 */ 870 Region transparent; 871 if (cur) { 872 for (size_t i=0 ; i<count ; i++) { 873 const sp<LayerBase>& layer(layers[i]); 874 layer->setPerFrameData(&cur[i]); 875 } 876 err = hwc.prepare(); 877 LOGE_IF(err, "HWComposer::prepare failed (%s)", strerror(-err)); 878 879 if (err == NO_ERROR) { 880 for (size_t i=0 ; i<count ; i++) { 881 if (cur[i].hints & HWC_HINT_CLEAR_FB) { 882 const sp<LayerBase>& layer(layers[i]); 883 if (!(layer->needsBlending())) { 884 transparent.orSelf(layer->visibleRegionScreen); 885 } 886 } 887 } 888 889 /* 890 * clear the area of the FB that need to be transparent 891 */ 892 transparent.andSelf(dirty); 893 if (!transparent.isEmpty()) { 894 glClearColor(0,0,0,0); 895 Region::const_iterator it = transparent.begin(); 896 Region::const_iterator const end = transparent.end(); 897 const int32_t height = hw.getHeight(); 898 while (it != end) { 899 const Rect& r(*it++); 900 const GLint sy = height - (r.top + r.height()); 901 glScissor(r.left, sy, r.width(), r.height()); 902 glClear(GL_COLOR_BUFFER_BIT); 903 } 904 } 905 } 906 } 907 908 909 /* 910 * and then, render the layers targeted at the framebuffer 911 */ 912 for (size_t i=0 ; i<count ; i++) { 913 if (cur) { 914 if ((cur[i].compositionType != HWC_FRAMEBUFFER) && 915 !(cur[i].flags & HWC_SKIP_LAYER)) { 916 // skip layers handled by the HAL 917 continue; 918 } 919 } 920 921 const sp<LayerBase>& layer(layers[i]); 922 const Region clip(dirty.intersect(layer->visibleRegionScreen)); 923 if (!clip.isEmpty()) { 924 layer->draw(clip); 925 } 926 } 927} 928 929void SurfaceFlinger::unlockClients() 930{ 931 const LayerVector& drawingLayers(mDrawingState.layersSortedByZ); 932 const size_t count = drawingLayers.size(); 933 sp<LayerBase> const* const layers = drawingLayers.array(); 934 for (size_t i=0 ; i<count ; ++i) { 935 const sp<LayerBase>& layer = layers[i]; 936 layer->finishPageFlip(); 937 } 938} 939 940void SurfaceFlinger::debugFlashRegions() 941{ 942 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 943 const uint32_t flags = hw.getFlags(); 944 945 if (!((flags & DisplayHardware::SWAP_RECTANGLE) || 946 (flags & DisplayHardware::BUFFER_PRESERVED))) { 947 const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ? 948 mDirtyRegion.bounds() : hw.bounds()); 949 composeSurfaces(repaint); 950 } 951 952 TextureManager::deactivateTextures(); 953 954 glDisable(GL_BLEND); 955 glDisable(GL_DITHER); 956 glDisable(GL_SCISSOR_TEST); 957 958 static int toggle = 0; 959 toggle = 1 - toggle; 960 if (toggle) { 961 glColor4f(1, 0, 1, 1); 962 } else { 963 glColor4f(1, 1, 0, 1); 964 } 965 966 Region::const_iterator it = mDirtyRegion.begin(); 967 Region::const_iterator const end = mDirtyRegion.end(); 968 while (it != end) { 969 const Rect& r = *it++; 970 GLfloat vertices[][2] = { 971 { r.left, r.top }, 972 { r.left, r.bottom }, 973 { r.right, r.bottom }, 974 { r.right, r.top } 975 }; 976 glVertexPointer(2, GL_FLOAT, 0, vertices); 977 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 978 } 979 980 if (mInvalidRegion.isEmpty()) { 981 mDirtyRegion.dump("mDirtyRegion"); 982 mInvalidRegion.dump("mInvalidRegion"); 983 } 984 hw.flip(mInvalidRegion); 985 986 if (mDebugRegion > 1) 987 usleep(mDebugRegion * 1000); 988 989 glEnable(GL_SCISSOR_TEST); 990 //mDirtyRegion.dump("mDirtyRegion"); 991} 992 993void SurfaceFlinger::drawWormhole() const 994{ 995 const Region region(mWormholeRegion.intersect(mDirtyRegion)); 996 if (region.isEmpty()) 997 return; 998 999 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1000 const int32_t width = hw.getWidth(); 1001 const int32_t height = hw.getHeight(); 1002 1003 glDisable(GL_BLEND); 1004 glDisable(GL_DITHER); 1005 1006 if (LIKELY(!mDebugBackground)) { 1007 glClearColor(0,0,0,0); 1008 Region::const_iterator it = region.begin(); 1009 Region::const_iterator const end = region.end(); 1010 while (it != end) { 1011 const Rect& r = *it++; 1012 const GLint sy = height - (r.top + r.height()); 1013 glScissor(r.left, sy, r.width(), r.height()); 1014 glClear(GL_COLOR_BUFFER_BIT); 1015 } 1016 } else { 1017 const GLshort vertices[][2] = { { 0, 0 }, { width, 0 }, 1018 { width, height }, { 0, height } }; 1019 const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } }; 1020 glVertexPointer(2, GL_SHORT, 0, vertices); 1021 glTexCoordPointer(2, GL_SHORT, 0, tcoords); 1022 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1023#if defined(GL_OES_EGL_image_external) 1024 if (GLExtensions::getInstance().haveTextureExternal()) { 1025 glDisable(GL_TEXTURE_EXTERNAL_OES); 1026 } 1027#endif 1028 glEnable(GL_TEXTURE_2D); 1029 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 1030 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1031 glMatrixMode(GL_TEXTURE); 1032 glLoadIdentity(); 1033 glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1); 1034 Region::const_iterator it = region.begin(); 1035 Region::const_iterator const end = region.end(); 1036 while (it != end) { 1037 const Rect& r = *it++; 1038 const GLint sy = height - (r.top + r.height()); 1039 glScissor(r.left, sy, r.width(), r.height()); 1040 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1041 } 1042 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1043 glLoadIdentity(); 1044 glMatrixMode(GL_MODELVIEW); 1045 } 1046} 1047 1048void SurfaceFlinger::debugShowFPS() const 1049{ 1050 static int mFrameCount; 1051 static int mLastFrameCount = 0; 1052 static nsecs_t mLastFpsTime = 0; 1053 static float mFps = 0; 1054 mFrameCount++; 1055 nsecs_t now = systemTime(); 1056 nsecs_t diff = now - mLastFpsTime; 1057 if (diff > ms2ns(250)) { 1058 mFps = ((mFrameCount - mLastFrameCount) * float(s2ns(1))) / diff; 1059 mLastFpsTime = now; 1060 mLastFrameCount = mFrameCount; 1061 } 1062 // XXX: mFPS has the value we want 1063 } 1064 1065status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer) 1066{ 1067 Mutex::Autolock _l(mStateLock); 1068 addLayer_l(layer); 1069 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1070 return NO_ERROR; 1071} 1072 1073status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer) 1074{ 1075 ssize_t i = mCurrentState.layersSortedByZ.add(layer); 1076 return (i < 0) ? status_t(i) : status_t(NO_ERROR); 1077} 1078 1079ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client, 1080 const sp<LayerBaseClient>& lbc) 1081{ 1082 Mutex::Autolock _l(mStateLock); 1083 1084 // attach this layer to the client 1085 ssize_t name = client->attachLayer(lbc); 1086 1087 // add this layer to the current state list 1088 addLayer_l(lbc); 1089 1090 return name; 1091} 1092 1093status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer) 1094{ 1095 Mutex::Autolock _l(mStateLock); 1096 status_t err = purgatorizeLayer_l(layer); 1097 if (err == NO_ERROR) 1098 setTransactionFlags(eTransactionNeeded); 1099 return err; 1100} 1101 1102status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase) 1103{ 1104 sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient()); 1105 if (lbc != 0) { 1106 mLayerMap.removeItem( lbc->getSurface()->asBinder() ); 1107 } 1108 ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase); 1109 if (index >= 0) { 1110 mLayersRemoved = true; 1111 return NO_ERROR; 1112 } 1113 return status_t(index); 1114} 1115 1116status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase) 1117{ 1118 // First add the layer to the purgatory list, which makes sure it won't 1119 // go away, then remove it from the main list (through a transaction). 1120 ssize_t err = removeLayer_l(layerBase); 1121 if (err >= 0) { 1122 mLayerPurgatory.add(layerBase); 1123 } 1124 1125 layerBase->onRemoved(); 1126 1127 // it's possible that we don't find a layer, because it might 1128 // have been destroyed already -- this is not technically an error 1129 // from the user because there is a race between Client::destroySurface(), 1130 // ~Client() and ~ISurface(). 1131 return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err; 1132} 1133 1134status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer) 1135{ 1136 layer->forceVisibilityTransaction(); 1137 setTransactionFlags(eTraversalNeeded); 1138 return NO_ERROR; 1139} 1140 1141uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags) 1142{ 1143 return android_atomic_and(~flags, &mTransactionFlags) & flags; 1144} 1145 1146uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags) 1147{ 1148 uint32_t old = android_atomic_or(flags, &mTransactionFlags); 1149 if ((old & flags)==0) { // wake the server up 1150 signalEvent(); 1151 } 1152 return old; 1153} 1154 1155void SurfaceFlinger::openGlobalTransaction() 1156{ 1157 android_atomic_inc(&mTransactionCount); 1158} 1159 1160void SurfaceFlinger::closeGlobalTransaction() 1161{ 1162 if (android_atomic_dec(&mTransactionCount) == 1) { 1163 signalEvent(); 1164 1165 // if there is a transaction with a resize, wait for it to 1166 // take effect before returning. 1167 Mutex::Autolock _l(mStateLock); 1168 while (mResizeTransationPending) { 1169 status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5)); 1170 if (CC_UNLIKELY(err != NO_ERROR)) { 1171 // just in case something goes wrong in SF, return to the 1172 // called after a few seconds. 1173 LOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!"); 1174 mResizeTransationPending = false; 1175 break; 1176 } 1177 } 1178 } 1179} 1180 1181status_t SurfaceFlinger::freezeDisplay(DisplayID dpy, uint32_t flags) 1182{ 1183 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1184 return BAD_VALUE; 1185 1186 Mutex::Autolock _l(mStateLock); 1187 mCurrentState.freezeDisplay = 1; 1188 setTransactionFlags(eTransactionNeeded); 1189 1190 // flags is intended to communicate some sort of animation behavior 1191 // (for instance fading) 1192 return NO_ERROR; 1193} 1194 1195status_t SurfaceFlinger::unfreezeDisplay(DisplayID dpy, uint32_t flags) 1196{ 1197 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1198 return BAD_VALUE; 1199 1200 Mutex::Autolock _l(mStateLock); 1201 mCurrentState.freezeDisplay = 0; 1202 setTransactionFlags(eTransactionNeeded); 1203 1204 // flags is intended to communicate some sort of animation behavior 1205 // (for instance fading) 1206 return NO_ERROR; 1207} 1208 1209int SurfaceFlinger::setOrientation(DisplayID dpy, 1210 int orientation, uint32_t flags) 1211{ 1212 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1213 return BAD_VALUE; 1214 1215 Mutex::Autolock _l(mStateLock); 1216 if (mCurrentState.orientation != orientation) { 1217 if (uint32_t(orientation)<=eOrientation270 || orientation==42) { 1218 mCurrentState.orientationType = flags; 1219 mCurrentState.orientation = orientation; 1220 setTransactionFlags(eTransactionNeeded); 1221 mTransactionCV.wait(mStateLock); 1222 } else { 1223 orientation = BAD_VALUE; 1224 } 1225 } 1226 return orientation; 1227} 1228 1229sp<ISurface> SurfaceFlinger::createSurface(const sp<Client>& client, int pid, 1230 const String8& name, ISurfaceComposerClient::surface_data_t* params, 1231 DisplayID d, uint32_t w, uint32_t h, PixelFormat format, 1232 uint32_t flags) 1233{ 1234 sp<LayerBaseClient> layer; 1235 sp<LayerBaseClient::Surface> surfaceHandle; 1236 1237 if (int32_t(w|h) < 0) { 1238 LOGE("createSurface() failed, w or h is negative (w=%d, h=%d)", 1239 int(w), int(h)); 1240 return surfaceHandle; 1241 } 1242 1243 //LOGD("createSurface for pid %d (%d x %d)", pid, w, h); 1244 sp<Layer> normalLayer; 1245 switch (flags & eFXSurfaceMask) { 1246 case eFXSurfaceNormal: 1247 normalLayer = createNormalSurface(client, d, w, h, flags, format); 1248 layer = normalLayer; 1249 break; 1250 case eFXSurfaceBlur: 1251 // for now we treat Blur as Dim, until we can implement it 1252 // efficiently. 1253 case eFXSurfaceDim: 1254 layer = createDimSurface(client, d, w, h, flags); 1255 break; 1256 } 1257 1258 if (layer != 0) { 1259 layer->initStates(w, h, flags); 1260 layer->setName(name); 1261 ssize_t token = addClientLayer(client, layer); 1262 1263 surfaceHandle = layer->getSurface(); 1264 if (surfaceHandle != 0) { 1265 params->token = token; 1266 params->identity = surfaceHandle->getIdentity(); 1267 params->width = w; 1268 params->height = h; 1269 params->format = format; 1270 if (normalLayer != 0) { 1271 Mutex::Autolock _l(mStateLock); 1272 mLayerMap.add(surfaceHandle->asBinder(), normalLayer); 1273 } 1274 } 1275 1276 setTransactionFlags(eTransactionNeeded); 1277 } 1278 1279 return surfaceHandle; 1280} 1281 1282sp<Layer> SurfaceFlinger::createNormalSurface( 1283 const sp<Client>& client, DisplayID display, 1284 uint32_t w, uint32_t h, uint32_t flags, 1285 PixelFormat& format) 1286{ 1287 // initialize the surfaces 1288 switch (format) { // TODO: take h/w into account 1289 case PIXEL_FORMAT_TRANSPARENT: 1290 case PIXEL_FORMAT_TRANSLUCENT: 1291 format = PIXEL_FORMAT_RGBA_8888; 1292 break; 1293 case PIXEL_FORMAT_OPAQUE: 1294#ifdef NO_RGBX_8888 1295 format = PIXEL_FORMAT_RGB_565; 1296#else 1297 format = PIXEL_FORMAT_RGBX_8888; 1298#endif 1299 break; 1300 } 1301 1302#ifdef NO_RGBX_8888 1303 if (format == PIXEL_FORMAT_RGBX_8888) 1304 format = PIXEL_FORMAT_RGBA_8888; 1305#endif 1306 1307 sp<Layer> layer = new Layer(this, display, client); 1308 status_t err = layer->setBuffers(w, h, format, flags); 1309 if (LIKELY(err != NO_ERROR)) { 1310 LOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err)); 1311 layer.clear(); 1312 } 1313 return layer; 1314} 1315 1316sp<LayerDim> SurfaceFlinger::createDimSurface( 1317 const sp<Client>& client, DisplayID display, 1318 uint32_t w, uint32_t h, uint32_t flags) 1319{ 1320 sp<LayerDim> layer = new LayerDim(this, display, client); 1321 layer->initStates(w, h, flags); 1322 return layer; 1323} 1324 1325status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid) 1326{ 1327 /* 1328 * called by the window manager, when a surface should be marked for 1329 * destruction. 1330 * 1331 * The surface is removed from the current and drawing lists, but placed 1332 * in the purgatory queue, so it's not destroyed right-away (we need 1333 * to wait for all client's references to go away first). 1334 */ 1335 1336 status_t err = NAME_NOT_FOUND; 1337 Mutex::Autolock _l(mStateLock); 1338 sp<LayerBaseClient> layer = client->getLayerUser(sid); 1339 if (layer != 0) { 1340 err = purgatorizeLayer_l(layer); 1341 if (err == NO_ERROR) { 1342 setTransactionFlags(eTransactionNeeded); 1343 } 1344 } 1345 return err; 1346} 1347 1348status_t SurfaceFlinger::destroySurface(const sp<LayerBaseClient>& layer) 1349{ 1350 // called by ~ISurface() when all references are gone 1351 1352 class MessageDestroySurface : public MessageBase { 1353 SurfaceFlinger* flinger; 1354 sp<LayerBaseClient> layer; 1355 public: 1356 MessageDestroySurface( 1357 SurfaceFlinger* flinger, const sp<LayerBaseClient>& layer) 1358 : flinger(flinger), layer(layer) { } 1359 virtual bool handler() { 1360 sp<LayerBaseClient> l(layer); 1361 layer.clear(); // clear it outside of the lock; 1362 Mutex::Autolock _l(flinger->mStateLock); 1363 /* 1364 * remove the layer from the current list -- chances are that it's 1365 * not in the list anyway, because it should have been removed 1366 * already upon request of the client (eg: window manager). 1367 * However, a buggy client could have not done that. 1368 * Since we know we don't have any more clients, we don't need 1369 * to use the purgatory. 1370 */ 1371 status_t err = flinger->removeLayer_l(l); 1372 if (err == NAME_NOT_FOUND) { 1373 // The surface wasn't in the current list, which means it was 1374 // removed already, which means it is in the purgatory, 1375 // and need to be removed from there. 1376 // This needs to happen from the main thread since its dtor 1377 // must run from there (b/c of OpenGL ES). Additionally, we 1378 // can't really acquire our internal lock from 1379 // destroySurface() -- see postMessage() below. 1380 ssize_t idx = flinger->mLayerPurgatory.remove(l); 1381 LOGE_IF(idx < 0, 1382 "layer=%p is not in the purgatory list", l.get()); 1383 } 1384 1385 LOGE_IF(err<0 && err != NAME_NOT_FOUND, 1386 "error removing layer=%p (%s)", l.get(), strerror(-err)); 1387 return true; 1388 } 1389 }; 1390 1391 postMessageAsync( new MessageDestroySurface(this, layer) ); 1392 return NO_ERROR; 1393} 1394 1395status_t SurfaceFlinger::setClientState( 1396 const sp<Client>& client, 1397 int32_t count, 1398 const layer_state_t* states) 1399{ 1400 Mutex::Autolock _l(mStateLock); 1401 uint32_t flags = 0; 1402 for (int i=0 ; i<count ; i++) { 1403 const layer_state_t& s(states[i]); 1404 sp<LayerBaseClient> layer(client->getLayerUser(s.surface)); 1405 if (layer != 0) { 1406 const uint32_t what = s.what; 1407 if (what & ePositionChanged) { 1408 if (layer->setPosition(s.x, s.y)) 1409 flags |= eTraversalNeeded; 1410 } 1411 if (what & eLayerChanged) { 1412 ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer); 1413 if (layer->setLayer(s.z)) { 1414 mCurrentState.layersSortedByZ.removeAt(idx); 1415 mCurrentState.layersSortedByZ.add(layer); 1416 // we need traversal (state changed) 1417 // AND transaction (list changed) 1418 flags |= eTransactionNeeded|eTraversalNeeded; 1419 } 1420 } 1421 if (what & eSizeChanged) { 1422 if (layer->setSize(s.w, s.h)) { 1423 flags |= eTraversalNeeded; 1424 mResizeTransationPending = true; 1425 } 1426 } 1427 if (what & eAlphaChanged) { 1428 if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f))) 1429 flags |= eTraversalNeeded; 1430 } 1431 if (what & eMatrixChanged) { 1432 if (layer->setMatrix(s.matrix)) 1433 flags |= eTraversalNeeded; 1434 } 1435 if (what & eTransparentRegionChanged) { 1436 if (layer->setTransparentRegionHint(s.transparentRegion)) 1437 flags |= eTraversalNeeded; 1438 } 1439 if (what & eVisibilityChanged) { 1440 if (layer->setFlags(s.flags, s.mask)) 1441 flags |= eTraversalNeeded; 1442 } 1443 } 1444 } 1445 if (flags) { 1446 setTransactionFlags(flags); 1447 } 1448 return NO_ERROR; 1449} 1450 1451void SurfaceFlinger::screenReleased(int dpy) 1452{ 1453 // this may be called by a signal handler, we can't do too much in here 1454 android_atomic_or(eConsoleReleased, &mConsoleSignals); 1455 signalEvent(); 1456} 1457 1458void SurfaceFlinger::screenAcquired(int dpy) 1459{ 1460 // this may be called by a signal handler, we can't do too much in here 1461 android_atomic_or(eConsoleAcquired, &mConsoleSignals); 1462 signalEvent(); 1463} 1464 1465status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args) 1466{ 1467 const size_t SIZE = 4096; 1468 char buffer[SIZE]; 1469 String8 result; 1470 if (!mDump.checkCalling()) { 1471 snprintf(buffer, SIZE, "Permission Denial: " 1472 "can't dump SurfaceFlinger from pid=%d, uid=%d\n", 1473 IPCThreadState::self()->getCallingPid(), 1474 IPCThreadState::self()->getCallingUid()); 1475 result.append(buffer); 1476 } else { 1477 1478 // figure out if we're stuck somewhere 1479 const nsecs_t now = systemTime(); 1480 const nsecs_t inSwapBuffers(mDebugInSwapBuffers); 1481 const nsecs_t inTransaction(mDebugInTransaction); 1482 nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0; 1483 nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0; 1484 1485 // Try to get the main lock, but don't insist if we can't 1486 // (this would indicate SF is stuck, but we want to be able to 1487 // print something in dumpsys). 1488 int retry = 3; 1489 while (mStateLock.tryLock()<0 && --retry>=0) { 1490 usleep(1000000); 1491 } 1492 const bool locked(retry >= 0); 1493 if (!locked) { 1494 snprintf(buffer, SIZE, 1495 "SurfaceFlinger appears to be unresponsive, " 1496 "dumping anyways (no locks held)\n"); 1497 result.append(buffer); 1498 } 1499 1500 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1501 const size_t count = currentLayers.size(); 1502 for (size_t i=0 ; i<count ; i++) { 1503 const sp<LayerBase>& layer(currentLayers[i]); 1504 layer->dump(result, buffer, SIZE); 1505 const Layer::State& s(layer->drawingState()); 1506 s.transparentRegion.dump(result, "transparentRegion"); 1507 layer->transparentRegionScreen.dump(result, "transparentRegionScreen"); 1508 layer->visibleRegionScreen.dump(result, "visibleRegionScreen"); 1509 } 1510 1511 mWormholeRegion.dump(result, "WormholeRegion"); 1512 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1513 snprintf(buffer, SIZE, 1514 " display frozen: %s, freezeCount=%d, orientation=%d, canDraw=%d\n", 1515 mFreezeDisplay?"yes":"no", mFreezeCount, 1516 mCurrentState.orientation, hw.canDraw()); 1517 result.append(buffer); 1518 snprintf(buffer, SIZE, 1519 " last eglSwapBuffers() time: %f us\n" 1520 " last transaction time : %f us\n", 1521 mLastSwapBufferTime/1000.0, mLastTransactionTime/1000.0); 1522 result.append(buffer); 1523 1524 if (inSwapBuffersDuration || !locked) { 1525 snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n", 1526 inSwapBuffersDuration/1000.0); 1527 result.append(buffer); 1528 } 1529 1530 if (inTransactionDuration || !locked) { 1531 snprintf(buffer, SIZE, " transaction time: %f us\n", 1532 inTransactionDuration/1000.0); 1533 result.append(buffer); 1534 } 1535 1536 HWComposer& hwc(hw.getHwComposer()); 1537 snprintf(buffer, SIZE, " h/w composer %s and %s\n", 1538 hwc.initCheck()==NO_ERROR ? "present" : "not present", 1539 mDebugDisableHWC ? "disabled" : "enabled"); 1540 result.append(buffer); 1541 hwc.dump(result, buffer, SIZE); 1542 1543 const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get()); 1544 alloc.dump(result); 1545 hw.dump(result); 1546 1547 if (locked) { 1548 mStateLock.unlock(); 1549 } 1550 } 1551 write(fd, result.string(), result.size()); 1552 return NO_ERROR; 1553} 1554 1555status_t SurfaceFlinger::onTransact( 1556 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1557{ 1558 switch (code) { 1559 case CREATE_CONNECTION: 1560 case OPEN_GLOBAL_TRANSACTION: 1561 case CLOSE_GLOBAL_TRANSACTION: 1562 case SET_ORIENTATION: 1563 case FREEZE_DISPLAY: 1564 case UNFREEZE_DISPLAY: 1565 case BOOT_FINISHED: 1566 case TURN_ELECTRON_BEAM_OFF: 1567 case TURN_ELECTRON_BEAM_ON: 1568 { 1569 // codes that require permission check 1570 IPCThreadState* ipc = IPCThreadState::self(); 1571 const int pid = ipc->getCallingPid(); 1572 const int uid = ipc->getCallingUid(); 1573 if ((uid != AID_GRAPHICS) && !mAccessSurfaceFlinger.check(pid, uid)) { 1574 LOGE("Permission Denial: " 1575 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1576 return PERMISSION_DENIED; 1577 } 1578 break; 1579 } 1580 case CAPTURE_SCREEN: 1581 { 1582 // codes that require permission check 1583 IPCThreadState* ipc = IPCThreadState::self(); 1584 const int pid = ipc->getCallingPid(); 1585 const int uid = ipc->getCallingUid(); 1586 if ((uid != AID_GRAPHICS) && !mReadFramebuffer.check(pid, uid)) { 1587 LOGE("Permission Denial: " 1588 "can't read framebuffer pid=%d, uid=%d", pid, uid); 1589 return PERMISSION_DENIED; 1590 } 1591 break; 1592 } 1593 } 1594 1595 status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags); 1596 if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) { 1597 CHECK_INTERFACE(ISurfaceComposer, data, reply); 1598 if (UNLIKELY(!mHardwareTest.checkCalling())) { 1599 IPCThreadState* ipc = IPCThreadState::self(); 1600 const int pid = ipc->getCallingPid(); 1601 const int uid = ipc->getCallingUid(); 1602 LOGE("Permission Denial: " 1603 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1604 return PERMISSION_DENIED; 1605 } 1606 int n; 1607 switch (code) { 1608 case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE 1609 case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE 1610 return NO_ERROR; 1611 case 1002: // SHOW_UPDATES 1612 n = data.readInt32(); 1613 mDebugRegion = n ? n : (mDebugRegion ? 0 : 1); 1614 return NO_ERROR; 1615 case 1003: // SHOW_BACKGROUND 1616 n = data.readInt32(); 1617 mDebugBackground = n ? 1 : 0; 1618 return NO_ERROR; 1619 case 1008: // toggle use of hw composer 1620 n = data.readInt32(); 1621 mDebugDisableHWC = n ? 1 : 0; 1622 invalidateHwcGeometry(); 1623 // fall-through... 1624 case 1004:{ // repaint everything 1625 Mutex::Autolock _l(mStateLock); 1626 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1627 mDirtyRegion.set(hw.bounds()); // careful that's not thread-safe 1628 signalEvent(); 1629 return NO_ERROR; 1630 } 1631 case 1005:{ // force transaction 1632 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1633 return NO_ERROR; 1634 } 1635 case 1006:{ // enable/disable GraphicLog 1636 int enabled = data.readInt32(); 1637 GraphicLog::getInstance().setEnabled(enabled); 1638 return NO_ERROR; 1639 } 1640 case 1007: // set mFreezeCount 1641 mFreezeCount = data.readInt32(); 1642 mFreezeDisplayTime = 0; 1643 return NO_ERROR; 1644 case 1010: // interrogate. 1645 reply->writeInt32(0); 1646 reply->writeInt32(0); 1647 reply->writeInt32(mDebugRegion); 1648 reply->writeInt32(mDebugBackground); 1649 return NO_ERROR; 1650 case 1013: { 1651 Mutex::Autolock _l(mStateLock); 1652 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1653 reply->writeInt32(hw.getPageFlipCount()); 1654 } 1655 return NO_ERROR; 1656 } 1657 } 1658 return err; 1659} 1660 1661// --------------------------------------------------------------------------- 1662 1663status_t SurfaceFlinger::renderScreenToTextureLocked(DisplayID dpy, 1664 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1665{ 1666 if (!GLExtensions::getInstance().haveFramebufferObject()) 1667 return INVALID_OPERATION; 1668 1669 // get screen geometry 1670 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 1671 const uint32_t hw_w = hw.getWidth(); 1672 const uint32_t hw_h = hw.getHeight(); 1673 GLfloat u = 1; 1674 GLfloat v = 1; 1675 1676 // make sure to clear all GL error flags 1677 while ( glGetError() != GL_NO_ERROR ) ; 1678 1679 // create a FBO 1680 GLuint name, tname; 1681 glGenTextures(1, &tname); 1682 glBindTexture(GL_TEXTURE_2D, tname); 1683 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1684 hw_w, hw_h, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1685 if (glGetError() != GL_NO_ERROR) { 1686 while ( glGetError() != GL_NO_ERROR ) ; 1687 GLint tw = (2 << (31 - clz(hw_w))); 1688 GLint th = (2 << (31 - clz(hw_h))); 1689 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1690 tw, th, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1691 u = GLfloat(hw_w) / tw; 1692 v = GLfloat(hw_h) / th; 1693 } 1694 glGenFramebuffersOES(1, &name); 1695 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 1696 glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, 1697 GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0); 1698 1699 // redraw the screen entirely... 1700 glClearColor(0,0,0,1); 1701 glClear(GL_COLOR_BUFFER_BIT); 1702 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1703 const size_t count = layers.size(); 1704 for (size_t i=0 ; i<count ; ++i) { 1705 const sp<LayerBase>& layer(layers[i]); 1706 layer->drawForSreenShot(); 1707 } 1708 1709 // back to main framebuffer 1710 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1711 glDisable(GL_SCISSOR_TEST); 1712 glDeleteFramebuffersOES(1, &name); 1713 1714 *textureName = tname; 1715 *uOut = u; 1716 *vOut = v; 1717 return NO_ERROR; 1718} 1719 1720// --------------------------------------------------------------------------- 1721 1722status_t SurfaceFlinger::electronBeamOffAnimationImplLocked() 1723{ 1724 status_t result = PERMISSION_DENIED; 1725 1726 if (!GLExtensions::getInstance().haveFramebufferObject()) 1727 return INVALID_OPERATION; 1728 1729 // get screen geometry 1730 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1731 const uint32_t hw_w = hw.getWidth(); 1732 const uint32_t hw_h = hw.getHeight(); 1733 const Region screenBounds(hw.bounds()); 1734 1735 GLfloat u, v; 1736 GLuint tname; 1737 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1738 if (result != NO_ERROR) { 1739 return result; 1740 } 1741 1742 GLfloat vtx[8]; 1743 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1744 glEnable(GL_TEXTURE_2D); 1745 glBindTexture(GL_TEXTURE_2D, tname); 1746 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1747 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1748 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1749 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1750 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1751 glVertexPointer(2, GL_FLOAT, 0, vtx); 1752 1753 class s_curve_interpolator { 1754 const float nbFrames, s, v; 1755 public: 1756 s_curve_interpolator(int nbFrames, float s) 1757 : nbFrames(1.0f / (nbFrames-1)), s(s), 1758 v(1.0f + expf(-s + 0.5f*s)) { 1759 } 1760 float operator()(int f) { 1761 const float x = f * nbFrames; 1762 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1763 } 1764 }; 1765 1766 class v_stretch { 1767 const GLfloat hw_w, hw_h; 1768 public: 1769 v_stretch(uint32_t hw_w, uint32_t hw_h) 1770 : hw_w(hw_w), hw_h(hw_h) { 1771 } 1772 void operator()(GLfloat* vtx, float v) { 1773 const GLfloat w = hw_w + (hw_w * v); 1774 const GLfloat h = hw_h - (hw_h * v); 1775 const GLfloat x = (hw_w - w) * 0.5f; 1776 const GLfloat y = (hw_h - h) * 0.5f; 1777 vtx[0] = x; vtx[1] = y; 1778 vtx[2] = x; vtx[3] = y + h; 1779 vtx[4] = x + w; vtx[5] = y + h; 1780 vtx[6] = x + w; vtx[7] = y; 1781 } 1782 }; 1783 1784 class h_stretch { 1785 const GLfloat hw_w, hw_h; 1786 public: 1787 h_stretch(uint32_t hw_w, uint32_t hw_h) 1788 : hw_w(hw_w), hw_h(hw_h) { 1789 } 1790 void operator()(GLfloat* vtx, float v) { 1791 const GLfloat w = hw_w - (hw_w * v); 1792 const GLfloat h = 1.0f; 1793 const GLfloat x = (hw_w - w) * 0.5f; 1794 const GLfloat y = (hw_h - h) * 0.5f; 1795 vtx[0] = x; vtx[1] = y; 1796 vtx[2] = x; vtx[3] = y + h; 1797 vtx[4] = x + w; vtx[5] = y + h; 1798 vtx[6] = x + w; vtx[7] = y; 1799 } 1800 }; 1801 1802 // the full animation is 24 frames 1803 const int nbFrames = 12; 1804 s_curve_interpolator itr(nbFrames, 7.5f); 1805 s_curve_interpolator itg(nbFrames, 8.0f); 1806 s_curve_interpolator itb(nbFrames, 8.5f); 1807 1808 v_stretch vverts(hw_w, hw_h); 1809 glEnable(GL_BLEND); 1810 glBlendFunc(GL_ONE, GL_ONE); 1811 for (int i=0 ; i<nbFrames ; i++) { 1812 float x, y, w, h; 1813 const float vr = itr(i); 1814 const float vg = itg(i); 1815 const float vb = itb(i); 1816 1817 // clear screen 1818 glColorMask(1,1,1,1); 1819 glClear(GL_COLOR_BUFFER_BIT); 1820 glEnable(GL_TEXTURE_2D); 1821 1822 // draw the red plane 1823 vverts(vtx, vr); 1824 glColorMask(1,0,0,1); 1825 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1826 1827 // draw the green plane 1828 vverts(vtx, vg); 1829 glColorMask(0,1,0,1); 1830 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1831 1832 // draw the blue plane 1833 vverts(vtx, vb); 1834 glColorMask(0,0,1,1); 1835 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1836 1837 // draw the white highlight (we use the last vertices) 1838 glDisable(GL_TEXTURE_2D); 1839 glColorMask(1,1,1,1); 1840 glColor4f(vg, vg, vg, 1); 1841 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1842 hw.flip(screenBounds); 1843 } 1844 1845 h_stretch hverts(hw_w, hw_h); 1846 glDisable(GL_BLEND); 1847 glDisable(GL_TEXTURE_2D); 1848 glColorMask(1,1,1,1); 1849 for (int i=0 ; i<nbFrames ; i++) { 1850 const float v = itg(i); 1851 hverts(vtx, v); 1852 glClear(GL_COLOR_BUFFER_BIT); 1853 glColor4f(1-v, 1-v, 1-v, 1); 1854 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1855 hw.flip(screenBounds); 1856 } 1857 1858 glColorMask(1,1,1,1); 1859 glEnable(GL_SCISSOR_TEST); 1860 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1861 glDeleteTextures(1, &tname); 1862 return NO_ERROR; 1863} 1864 1865status_t SurfaceFlinger::electronBeamOnAnimationImplLocked() 1866{ 1867 status_t result = PERMISSION_DENIED; 1868 1869 if (!GLExtensions::getInstance().haveFramebufferObject()) 1870 return INVALID_OPERATION; 1871 1872 1873 // get screen geometry 1874 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1875 const uint32_t hw_w = hw.getWidth(); 1876 const uint32_t hw_h = hw.getHeight(); 1877 const Region screenBounds(hw.bounds()); 1878 1879 GLfloat u, v; 1880 GLuint tname; 1881 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1882 if (result != NO_ERROR) { 1883 return result; 1884 } 1885 1886 // back to main framebuffer 1887 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1888 glDisable(GL_SCISSOR_TEST); 1889 1890 GLfloat vtx[8]; 1891 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1892 glEnable(GL_TEXTURE_2D); 1893 glBindTexture(GL_TEXTURE_2D, tname); 1894 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 1895 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1896 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1897 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1898 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1899 glVertexPointer(2, GL_FLOAT, 0, vtx); 1900 1901 class s_curve_interpolator { 1902 const float nbFrames, s, v; 1903 public: 1904 s_curve_interpolator(int nbFrames, float s) 1905 : nbFrames(1.0f / (nbFrames-1)), s(s), 1906 v(1.0f + expf(-s + 0.5f*s)) { 1907 } 1908 float operator()(int f) { 1909 const float x = f * nbFrames; 1910 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1911 } 1912 }; 1913 1914 class v_stretch { 1915 const GLfloat hw_w, hw_h; 1916 public: 1917 v_stretch(uint32_t hw_w, uint32_t hw_h) 1918 : hw_w(hw_w), hw_h(hw_h) { 1919 } 1920 void operator()(GLfloat* vtx, float v) { 1921 const GLfloat w = hw_w + (hw_w * v); 1922 const GLfloat h = hw_h - (hw_h * v); 1923 const GLfloat x = (hw_w - w) * 0.5f; 1924 const GLfloat y = (hw_h - h) * 0.5f; 1925 vtx[0] = x; vtx[1] = y; 1926 vtx[2] = x; vtx[3] = y + h; 1927 vtx[4] = x + w; vtx[5] = y + h; 1928 vtx[6] = x + w; vtx[7] = y; 1929 } 1930 }; 1931 1932 class h_stretch { 1933 const GLfloat hw_w, hw_h; 1934 public: 1935 h_stretch(uint32_t hw_w, uint32_t hw_h) 1936 : hw_w(hw_w), hw_h(hw_h) { 1937 } 1938 void operator()(GLfloat* vtx, float v) { 1939 const GLfloat w = hw_w - (hw_w * v); 1940 const GLfloat h = 1.0f; 1941 const GLfloat x = (hw_w - w) * 0.5f; 1942 const GLfloat y = (hw_h - h) * 0.5f; 1943 vtx[0] = x; vtx[1] = y; 1944 vtx[2] = x; vtx[3] = y + h; 1945 vtx[4] = x + w; vtx[5] = y + h; 1946 vtx[6] = x + w; vtx[7] = y; 1947 } 1948 }; 1949 1950 // the full animation is 12 frames 1951 int nbFrames = 8; 1952 s_curve_interpolator itr(nbFrames, 7.5f); 1953 s_curve_interpolator itg(nbFrames, 8.0f); 1954 s_curve_interpolator itb(nbFrames, 8.5f); 1955 1956 h_stretch hverts(hw_w, hw_h); 1957 glDisable(GL_BLEND); 1958 glDisable(GL_TEXTURE_2D); 1959 glColorMask(1,1,1,1); 1960 for (int i=nbFrames-1 ; i>=0 ; i--) { 1961 const float v = itg(i); 1962 hverts(vtx, v); 1963 glClear(GL_COLOR_BUFFER_BIT); 1964 glColor4f(1-v, 1-v, 1-v, 1); 1965 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1966 hw.flip(screenBounds); 1967 } 1968 1969 nbFrames = 4; 1970 v_stretch vverts(hw_w, hw_h); 1971 glEnable(GL_BLEND); 1972 glBlendFunc(GL_ONE, GL_ONE); 1973 for (int i=nbFrames-1 ; i>=0 ; i--) { 1974 float x, y, w, h; 1975 const float vr = itr(i); 1976 const float vg = itg(i); 1977 const float vb = itb(i); 1978 1979 // clear screen 1980 glColorMask(1,1,1,1); 1981 glClear(GL_COLOR_BUFFER_BIT); 1982 glEnable(GL_TEXTURE_2D); 1983 1984 // draw the red plane 1985 vverts(vtx, vr); 1986 glColorMask(1,0,0,1); 1987 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1988 1989 // draw the green plane 1990 vverts(vtx, vg); 1991 glColorMask(0,1,0,1); 1992 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1993 1994 // draw the blue plane 1995 vverts(vtx, vb); 1996 glColorMask(0,0,1,1); 1997 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1998 1999 hw.flip(screenBounds); 2000 } 2001 2002 glColorMask(1,1,1,1); 2003 glEnable(GL_SCISSOR_TEST); 2004 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 2005 glDeleteTextures(1, &tname); 2006 2007 return NO_ERROR; 2008} 2009 2010// --------------------------------------------------------------------------- 2011 2012status_t SurfaceFlinger::turnElectronBeamOffImplLocked(int32_t mode) 2013{ 2014 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2015 if (!hw.canDraw()) { 2016 // we're already off 2017 return NO_ERROR; 2018 } 2019 if (mode & ISurfaceComposer::eElectronBeamAnimationOff) { 2020 electronBeamOffAnimationImplLocked(); 2021 } 2022 2023 // always clear the whole screen at the end of the animation 2024 glClearColor(0,0,0,1); 2025 glDisable(GL_SCISSOR_TEST); 2026 glClear(GL_COLOR_BUFFER_BIT); 2027 glEnable(GL_SCISSOR_TEST); 2028 hw.flip( Region(hw.bounds()) ); 2029 2030 hw.setCanDraw(false); 2031 return NO_ERROR; 2032} 2033 2034status_t SurfaceFlinger::turnElectronBeamOff(int32_t mode) 2035{ 2036 class MessageTurnElectronBeamOff : public MessageBase { 2037 SurfaceFlinger* flinger; 2038 int32_t mode; 2039 status_t result; 2040 public: 2041 MessageTurnElectronBeamOff(SurfaceFlinger* flinger, int32_t mode) 2042 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2043 } 2044 status_t getResult() const { 2045 return result; 2046 } 2047 virtual bool handler() { 2048 Mutex::Autolock _l(flinger->mStateLock); 2049 result = flinger->turnElectronBeamOffImplLocked(mode); 2050 return true; 2051 } 2052 }; 2053 2054 sp<MessageBase> msg = new MessageTurnElectronBeamOff(this, mode); 2055 status_t res = postMessageSync(msg); 2056 if (res == NO_ERROR) { 2057 res = static_cast<MessageTurnElectronBeamOff*>( msg.get() )->getResult(); 2058 2059 // work-around: when the power-manager calls us we activate the 2060 // animation. eventually, the "on" animation will be called 2061 // by the power-manager itself 2062 mElectronBeamAnimationMode = mode; 2063 } 2064 return res; 2065} 2066 2067// --------------------------------------------------------------------------- 2068 2069status_t SurfaceFlinger::turnElectronBeamOnImplLocked(int32_t mode) 2070{ 2071 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2072 if (hw.canDraw()) { 2073 // we're already on 2074 return NO_ERROR; 2075 } 2076 if (mode & ISurfaceComposer::eElectronBeamAnimationOn) { 2077 electronBeamOnAnimationImplLocked(); 2078 } 2079 hw.setCanDraw(true); 2080 2081 // make sure to redraw the whole screen when the animation is done 2082 mDirtyRegion.set(hw.bounds()); 2083 signalEvent(); 2084 2085 return NO_ERROR; 2086} 2087 2088status_t SurfaceFlinger::turnElectronBeamOn(int32_t mode) 2089{ 2090 class MessageTurnElectronBeamOn : public MessageBase { 2091 SurfaceFlinger* flinger; 2092 int32_t mode; 2093 status_t result; 2094 public: 2095 MessageTurnElectronBeamOn(SurfaceFlinger* flinger, int32_t mode) 2096 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2097 } 2098 status_t getResult() const { 2099 return result; 2100 } 2101 virtual bool handler() { 2102 Mutex::Autolock _l(flinger->mStateLock); 2103 result = flinger->turnElectronBeamOnImplLocked(mode); 2104 return true; 2105 } 2106 }; 2107 2108 postMessageAsync( new MessageTurnElectronBeamOn(this, mode) ); 2109 return NO_ERROR; 2110} 2111 2112// --------------------------------------------------------------------------- 2113 2114status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy, 2115 sp<IMemoryHeap>* heap, 2116 uint32_t* w, uint32_t* h, PixelFormat* f, 2117 uint32_t sw, uint32_t sh, 2118 uint32_t minLayerZ, uint32_t maxLayerZ) 2119{ 2120 status_t result = PERMISSION_DENIED; 2121 2122 // only one display supported for now 2123 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2124 return BAD_VALUE; 2125 2126 if (!GLExtensions::getInstance().haveFramebufferObject()) 2127 return INVALID_OPERATION; 2128 2129 // get screen geometry 2130 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 2131 const uint32_t hw_w = hw.getWidth(); 2132 const uint32_t hw_h = hw.getHeight(); 2133 2134 if ((sw > hw_w) || (sh > hw_h)) 2135 return BAD_VALUE; 2136 2137 sw = (!sw) ? hw_w : sw; 2138 sh = (!sh) ? hw_h : sh; 2139 const size_t size = sw * sh * 4; 2140 2141 LOGD("screenshot: sw=%d, sh=%d, minZ=%d, maxZ=%d", 2142 sw, sh, minLayerZ, maxLayerZ); 2143 2144 // make sure to clear all GL error flags 2145 while ( glGetError() != GL_NO_ERROR ) ; 2146 2147 // create a FBO 2148 GLuint name, tname; 2149 glGenRenderbuffersOES(1, &tname); 2150 glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname); 2151 glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh); 2152 glGenFramebuffersOES(1, &name); 2153 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 2154 glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, 2155 GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname); 2156 2157 GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES); 2158 2159 LOGD("screenshot: FBO created, status=0x%x", status); 2160 2161 if (status == GL_FRAMEBUFFER_COMPLETE_OES) { 2162 2163 // invert everything, b/c glReadPixel() below will invert the FB 2164 glViewport(0, 0, sw, sh); 2165 glScissor(0, 0, sw, sh); 2166 glMatrixMode(GL_PROJECTION); 2167 glPushMatrix(); 2168 glLoadIdentity(); 2169 glOrthof(0, hw_w, 0, hw_h, 0, 1); 2170 glMatrixMode(GL_MODELVIEW); 2171 2172 // redraw the screen entirely... 2173 glClearColor(0,0,0,1); 2174 glClear(GL_COLOR_BUFFER_BIT); 2175 2176 LOGD("screenshot: glClear() issued"); 2177 2178 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 2179 const size_t count = layers.size(); 2180 for (size_t i=0 ; i<count ; ++i) { 2181 const sp<LayerBase>& layer(layers[i]); 2182 const uint32_t z = layer->drawingState().z; 2183 if (z >= minLayerZ && z <= maxLayerZ) { 2184 layer->drawForSreenShot(); 2185 } 2186 } 2187 2188 LOGD("screenshot: All layers rendered"); 2189 2190 // XXX: this is needed on tegra 2191 glScissor(0, 0, sw, sh); 2192 2193 // check for errors and return screen capture 2194 if (glGetError() != GL_NO_ERROR) { 2195 // error while rendering 2196 result = INVALID_OPERATION; 2197 } else { 2198 // allocate shared memory large enough to hold the 2199 // screen capture 2200 sp<MemoryHeapBase> base( 2201 new MemoryHeapBase(size, 0, "screen-capture") ); 2202 void* const ptr = base->getBase(); 2203 if (ptr) { 2204 2205 LOGD("screenshot: about to call glReadPixels(0,0,%d,%d,...,%p)", 2206 sw, sh, ptr); 2207 2208 // capture the screen with glReadPixels() 2209 glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr); 2210 if (glGetError() == GL_NO_ERROR) { 2211 *heap = base; 2212 *w = sw; 2213 *h = sh; 2214 *f = PIXEL_FORMAT_RGBA_8888; 2215 result = NO_ERROR; 2216 } 2217 } else { 2218 result = NO_MEMORY; 2219 } 2220 2221 LOGD("screenshot: glReadPixels() returned %s", strerror(result)); 2222 2223 } 2224 glEnable(GL_SCISSOR_TEST); 2225 glViewport(0, 0, hw_w, hw_h); 2226 glMatrixMode(GL_PROJECTION); 2227 glPopMatrix(); 2228 glMatrixMode(GL_MODELVIEW); 2229 } else { 2230 result = BAD_VALUE; 2231 } 2232 2233 LOGD("screenshot: about to release FBO resources"); 2234 2235 // release FBO resources 2236 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 2237 glDeleteRenderbuffersOES(1, &tname); 2238 glDeleteFramebuffersOES(1, &name); 2239 2240 LOGD("screenshot: about to call compositionComplete()"); 2241 2242 hw.compositionComplete(); 2243 2244 LOGD("screenshot: result = %s", strerror(result)); 2245 2246 return result; 2247} 2248 2249 2250status_t SurfaceFlinger::captureScreen(DisplayID dpy, 2251 sp<IMemoryHeap>* heap, 2252 uint32_t* width, uint32_t* height, PixelFormat* format, 2253 uint32_t sw, uint32_t sh, 2254 uint32_t minLayerZ, uint32_t maxLayerZ) 2255{ 2256 // only one display supported for now 2257 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2258 return BAD_VALUE; 2259 2260 if (!GLExtensions::getInstance().haveFramebufferObject()) 2261 return INVALID_OPERATION; 2262 2263 class MessageCaptureScreen : public MessageBase { 2264 SurfaceFlinger* flinger; 2265 DisplayID dpy; 2266 sp<IMemoryHeap>* heap; 2267 uint32_t* w; 2268 uint32_t* h; 2269 PixelFormat* f; 2270 uint32_t sw; 2271 uint32_t sh; 2272 uint32_t minLayerZ; 2273 uint32_t maxLayerZ; 2274 status_t result; 2275 public: 2276 MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy, 2277 sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f, 2278 uint32_t sw, uint32_t sh, 2279 uint32_t minLayerZ, uint32_t maxLayerZ) 2280 : flinger(flinger), dpy(dpy), 2281 heap(heap), w(w), h(h), f(f), sw(sw), sh(sh), 2282 minLayerZ(minLayerZ), maxLayerZ(maxLayerZ), 2283 result(PERMISSION_DENIED) 2284 { 2285 } 2286 status_t getResult() const { 2287 return result; 2288 } 2289 virtual bool handler() { 2290 Mutex::Autolock _l(flinger->mStateLock); 2291 2292 // if we have secure windows, never allow the screen capture 2293 if (flinger->mSecureFrameBuffer) 2294 return true; 2295 2296 result = flinger->captureScreenImplLocked(dpy, 2297 heap, w, h, f, sw, sh, minLayerZ, maxLayerZ); 2298 2299 return true; 2300 } 2301 }; 2302 2303 sp<MessageBase> msg = new MessageCaptureScreen(this, 2304 dpy, heap, width, height, format, sw, sh, minLayerZ, maxLayerZ); 2305 status_t res = postMessageSync(msg); 2306 if (res == NO_ERROR) { 2307 res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult(); 2308 } 2309 return res; 2310} 2311 2312// --------------------------------------------------------------------------- 2313 2314sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const 2315{ 2316 sp<Layer> result; 2317 Mutex::Autolock _l(mStateLock); 2318 result = mLayerMap.valueFor( sur->asBinder() ).promote(); 2319 return result; 2320} 2321 2322// --------------------------------------------------------------------------- 2323 2324Client::Client(const sp<SurfaceFlinger>& flinger) 2325 : mFlinger(flinger), mNameGenerator(1) 2326{ 2327} 2328 2329Client::~Client() 2330{ 2331 const size_t count = mLayers.size(); 2332 for (size_t i=0 ; i<count ; i++) { 2333 sp<LayerBaseClient> layer(mLayers.valueAt(i).promote()); 2334 if (layer != 0) { 2335 mFlinger->removeLayer(layer); 2336 } 2337 } 2338} 2339 2340status_t Client::initCheck() const { 2341 return NO_ERROR; 2342} 2343 2344ssize_t Client::attachLayer(const sp<LayerBaseClient>& layer) 2345{ 2346 int32_t name = android_atomic_inc(&mNameGenerator); 2347 mLayers.add(name, layer); 2348 return name; 2349} 2350 2351void Client::detachLayer(const LayerBaseClient* layer) 2352{ 2353 // we do a linear search here, because this doesn't happen often 2354 const size_t count = mLayers.size(); 2355 for (size_t i=0 ; i<count ; i++) { 2356 if (mLayers.valueAt(i) == layer) { 2357 mLayers.removeItemsAt(i, 1); 2358 break; 2359 } 2360 } 2361} 2362sp<LayerBaseClient> Client::getLayerUser(int32_t i) const { 2363 sp<LayerBaseClient> lbc; 2364 const wp<LayerBaseClient>& layer(mLayers.valueFor(i)); 2365 if (layer != 0) { 2366 lbc = layer.promote(); 2367 LOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i)); 2368 } 2369 return lbc; 2370} 2371 2372sp<IMemoryHeap> Client::getControlBlock() const { 2373 return 0; 2374} 2375ssize_t Client::getTokenForSurface(const sp<ISurface>& sur) const { 2376 return -1; 2377} 2378sp<ISurface> Client::createSurface( 2379 ISurfaceComposerClient::surface_data_t* params, int pid, 2380 const String8& name, 2381 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2382 uint32_t flags) 2383{ 2384 return mFlinger->createSurface(this, pid, name, params, 2385 display, w, h, format, flags); 2386} 2387status_t Client::destroySurface(SurfaceID sid) { 2388 return mFlinger->removeSurface(this, sid); 2389} 2390status_t Client::setState(int32_t count, const layer_state_t* states) { 2391 return mFlinger->setClientState(this, count, states); 2392} 2393 2394// --------------------------------------------------------------------------- 2395 2396UserClient::UserClient(const sp<SurfaceFlinger>& flinger) 2397 : ctrlblk(0), mBitmap(0), mFlinger(flinger) 2398{ 2399 const int pgsize = getpagesize(); 2400 const int cblksize = ((sizeof(SharedClient)+(pgsize-1))&~(pgsize-1)); 2401 2402 mCblkHeap = new MemoryHeapBase(cblksize, 0, 2403 "SurfaceFlinger Client control-block"); 2404 2405 ctrlblk = static_cast<SharedClient *>(mCblkHeap->getBase()); 2406 if (ctrlblk) { // construct the shared structure in-place. 2407 new(ctrlblk) SharedClient; 2408 } 2409} 2410 2411UserClient::~UserClient() 2412{ 2413 if (ctrlblk) { 2414 ctrlblk->~SharedClient(); // destroy our shared-structure. 2415 } 2416 2417 /* 2418 * When a UserClient dies, it's unclear what to do exactly. 2419 * We could go ahead and destroy all surfaces linked to that client 2420 * however, it wouldn't be fair to the main Client 2421 * (usually the the window-manager), which might want to re-target 2422 * the layer to another UserClient. 2423 * I think the best is to do nothing, or not much; in most cases the 2424 * WM itself will go ahead and clean things up when it detects a client of 2425 * his has died. 2426 * The remaining question is what to display? currently we keep 2427 * just keep the current buffer. 2428 */ 2429} 2430 2431status_t UserClient::initCheck() const { 2432 return ctrlblk == 0 ? NO_INIT : NO_ERROR; 2433} 2434 2435void UserClient::detachLayer(const Layer* layer) 2436{ 2437 int32_t name = layer->getToken(); 2438 if (name >= 0) { 2439 int32_t mask = 1LU<<name; 2440 if ((android_atomic_and(~mask, &mBitmap) & mask) == 0) { 2441 LOGW("token %d wasn't marked as used %08x", name, int(mBitmap)); 2442 } 2443 } 2444} 2445 2446sp<IMemoryHeap> UserClient::getControlBlock() const { 2447 return mCblkHeap; 2448} 2449 2450ssize_t UserClient::getTokenForSurface(const sp<ISurface>& sur) const 2451{ 2452 int32_t name = NAME_NOT_FOUND; 2453 sp<Layer> layer(mFlinger->getLayer(sur)); 2454 if (layer == 0) { 2455 return name; 2456 } 2457 2458 // if this layer already has a token, just return it 2459 name = layer->getToken(); 2460 if ((name >= 0) && (layer->getClient() == this)) { 2461 return name; 2462 } 2463 2464 name = 0; 2465 do { 2466 int32_t mask = 1LU<<name; 2467 if ((android_atomic_or(mask, &mBitmap) & mask) == 0) { 2468 // we found and locked that name 2469 status_t err = layer->setToken( 2470 const_cast<UserClient*>(this), ctrlblk, name); 2471 if (err != NO_ERROR) { 2472 // free the name 2473 android_atomic_and(~mask, &mBitmap); 2474 name = err; 2475 } 2476 break; 2477 } 2478 if (++name > 31) 2479 name = NO_MEMORY; 2480 } while(name >= 0); 2481 2482 //LOGD("getTokenForSurface(%p) => %d (client=%p, bitmap=%08lx)", 2483 // sur->asBinder().get(), name, this, mBitmap); 2484 return name; 2485} 2486 2487sp<ISurface> UserClient::createSurface( 2488 ISurfaceComposerClient::surface_data_t* params, int pid, 2489 const String8& name, 2490 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2491 uint32_t flags) { 2492 return 0; 2493} 2494status_t UserClient::destroySurface(SurfaceID sid) { 2495 return INVALID_OPERATION; 2496} 2497status_t UserClient::setState(int32_t count, const layer_state_t* states) { 2498 return INVALID_OPERATION; 2499} 2500 2501// --------------------------------------------------------------------------- 2502 2503GraphicBufferAlloc::GraphicBufferAlloc() {} 2504 2505GraphicBufferAlloc::~GraphicBufferAlloc() {} 2506 2507sp<GraphicBuffer> GraphicBufferAlloc::createGraphicBuffer(uint32_t w, uint32_t h, 2508 PixelFormat format, uint32_t usage) { 2509 sp<GraphicBuffer> graphicBuffer(new GraphicBuffer(w, h, format, usage)); 2510 status_t err = graphicBuffer->initCheck(); 2511 if (err != 0) { 2512 LOGE("createGraphicBuffer: init check failed: %d", err); 2513 return 0; 2514 } else if (graphicBuffer->handle == 0) { 2515 LOGE("createGraphicBuffer: unable to create GraphicBuffer"); 2516 return 0; 2517 } 2518 Mutex::Autolock _l(mLock); 2519 mBuffers.add(graphicBuffer); 2520 return graphicBuffer; 2521} 2522 2523void GraphicBufferAlloc::freeAllGraphicBuffersExcept(int bufIdx) { 2524 Mutex::Autolock _l(mLock); 2525 if (0 <= bufIdx && bufIdx < mBuffers.size()) { 2526 sp<GraphicBuffer> b(mBuffers[bufIdx]); 2527 mBuffers.clear(); 2528 mBuffers.add(b); 2529 } else { 2530 mBuffers.clear(); 2531 } 2532} 2533 2534// --------------------------------------------------------------------------- 2535 2536GraphicPlane::GraphicPlane() 2537 : mHw(0) 2538{ 2539} 2540 2541GraphicPlane::~GraphicPlane() { 2542 delete mHw; 2543} 2544 2545bool GraphicPlane::initialized() const { 2546 return mHw ? true : false; 2547} 2548 2549int GraphicPlane::getWidth() const { 2550 return mWidth; 2551} 2552 2553int GraphicPlane::getHeight() const { 2554 return mHeight; 2555} 2556 2557void GraphicPlane::setDisplayHardware(DisplayHardware *hw) 2558{ 2559 mHw = hw; 2560 2561 // initialize the display orientation transform. 2562 // it's a constant that should come from the display driver. 2563 int displayOrientation = ISurfaceComposer::eOrientationDefault; 2564 char property[PROPERTY_VALUE_MAX]; 2565 if (property_get("ro.sf.hwrotation", property, NULL) > 0) { 2566 //displayOrientation 2567 switch (atoi(property)) { 2568 case 90: 2569 displayOrientation = ISurfaceComposer::eOrientation90; 2570 break; 2571 case 270: 2572 displayOrientation = ISurfaceComposer::eOrientation270; 2573 break; 2574 } 2575 } 2576 2577 const float w = hw->getWidth(); 2578 const float h = hw->getHeight(); 2579 GraphicPlane::orientationToTransfrom(displayOrientation, w, h, 2580 &mDisplayTransform); 2581 if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) { 2582 mDisplayWidth = h; 2583 mDisplayHeight = w; 2584 } else { 2585 mDisplayWidth = w; 2586 mDisplayHeight = h; 2587 } 2588 2589 setOrientation(ISurfaceComposer::eOrientationDefault); 2590} 2591 2592status_t GraphicPlane::orientationToTransfrom( 2593 int orientation, int w, int h, Transform* tr) 2594{ 2595 uint32_t flags = 0; 2596 switch (orientation) { 2597 case ISurfaceComposer::eOrientationDefault: 2598 flags = Transform::ROT_0; 2599 break; 2600 case ISurfaceComposer::eOrientation90: 2601 flags = Transform::ROT_90; 2602 break; 2603 case ISurfaceComposer::eOrientation180: 2604 flags = Transform::ROT_180; 2605 break; 2606 case ISurfaceComposer::eOrientation270: 2607 flags = Transform::ROT_270; 2608 break; 2609 default: 2610 return BAD_VALUE; 2611 } 2612 tr->set(flags, w, h); 2613 return NO_ERROR; 2614} 2615 2616status_t GraphicPlane::setOrientation(int orientation) 2617{ 2618 // If the rotation can be handled in hardware, this is where 2619 // the magic should happen. 2620 2621 const DisplayHardware& hw(displayHardware()); 2622 const float w = mDisplayWidth; 2623 const float h = mDisplayHeight; 2624 mWidth = int(w); 2625 mHeight = int(h); 2626 2627 Transform orientationTransform; 2628 GraphicPlane::orientationToTransfrom(orientation, w, h, 2629 &orientationTransform); 2630 if (orientation & ISurfaceComposer::eOrientationSwapMask) { 2631 mWidth = int(h); 2632 mHeight = int(w); 2633 } 2634 2635 mOrientation = orientation; 2636 mGlobalTransform = mDisplayTransform * orientationTransform; 2637 return NO_ERROR; 2638} 2639 2640const DisplayHardware& GraphicPlane::displayHardware() const { 2641 return *mHw; 2642} 2643 2644DisplayHardware& GraphicPlane::editDisplayHardware() { 2645 return *mHw; 2646} 2647 2648const Transform& GraphicPlane::transform() const { 2649 return mGlobalTransform; 2650} 2651 2652EGLDisplay GraphicPlane::getEGLDisplay() const { 2653 return mHw->getEGLDisplay(); 2654} 2655 2656// --------------------------------------------------------------------------- 2657 2658}; // namespace android 2659