SurfaceFlinger.cpp revision ad456f9878ff7c176499e7b992f9ff1cb3e9cdee
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include <stdlib.h> 18#include <stdio.h> 19#include <stdint.h> 20#include <unistd.h> 21#include <fcntl.h> 22#include <errno.h> 23#include <math.h> 24#include <limits.h> 25#include <sys/types.h> 26#include <sys/stat.h> 27#include <sys/ioctl.h> 28 29#include <cutils/log.h> 30#include <cutils/properties.h> 31 32#include <binder/IPCThreadState.h> 33#include <binder/IServiceManager.h> 34#include <binder/MemoryHeapBase.h> 35 36#include <utils/String8.h> 37#include <utils/String16.h> 38#include <utils/StopWatch.h> 39 40#include <ui/GraphicBufferAllocator.h> 41#include <ui/GraphicLog.h> 42#include <ui/PixelFormat.h> 43 44#include <pixelflinger/pixelflinger.h> 45#include <GLES/gl.h> 46 47#include "clz.h" 48#include "GLExtensions.h" 49#include "Layer.h" 50#include "LayerDim.h" 51#include "SurfaceFlinger.h" 52 53#include "DisplayHardware/DisplayHardware.h" 54#include "DisplayHardware/HWComposer.h" 55 56/* ideally AID_GRAPHICS would be in a semi-public header 57 * or there would be a way to map a user/group name to its id 58 */ 59#ifndef AID_GRAPHICS 60#define AID_GRAPHICS 1003 61#endif 62 63#define DISPLAY_COUNT 1 64 65namespace android { 66// --------------------------------------------------------------------------- 67 68SurfaceFlinger::SurfaceFlinger() 69 : BnSurfaceComposer(), Thread(false), 70 mTransactionFlags(0), 71 mTransactionCount(0), 72 mResizeTransationPending(false), 73 mLayersRemoved(false), 74 mBootTime(systemTime()), 75 mHardwareTest("android.permission.HARDWARE_TEST"), 76 mAccessSurfaceFlinger("android.permission.ACCESS_SURFACE_FLINGER"), 77 mReadFramebuffer("android.permission.READ_FRAME_BUFFER"), 78 mDump("android.permission.DUMP"), 79 mVisibleRegionsDirty(false), 80 mHwWorkListDirty(false), 81 mDeferReleaseConsole(false), 82 mFreezeDisplay(false), 83 mElectronBeamAnimationMode(0), 84 mFreezeCount(0), 85 mFreezeDisplayTime(0), 86 mDebugRegion(0), 87 mDebugBackground(0), 88 mDebugDisableHWC(0), 89 mDebugInSwapBuffers(0), 90 mLastSwapBufferTime(0), 91 mDebugInTransaction(0), 92 mLastTransactionTime(0), 93 mBootFinished(false), 94 mConsoleSignals(0), 95 mSecureFrameBuffer(0) 96{ 97 init(); 98} 99 100void SurfaceFlinger::init() 101{ 102 LOGI("SurfaceFlinger is starting"); 103 104 // debugging stuff... 105 char value[PROPERTY_VALUE_MAX]; 106 property_get("debug.sf.showupdates", value, "0"); 107 mDebugRegion = atoi(value); 108 property_get("debug.sf.showbackground", value, "0"); 109 mDebugBackground = atoi(value); 110 111 LOGI_IF(mDebugRegion, "showupdates enabled"); 112 LOGI_IF(mDebugBackground, "showbackground enabled"); 113} 114 115SurfaceFlinger::~SurfaceFlinger() 116{ 117 glDeleteTextures(1, &mWormholeTexName); 118} 119 120sp<IMemoryHeap> SurfaceFlinger::getCblk() const 121{ 122 return mServerHeap; 123} 124 125sp<ISurfaceComposerClient> SurfaceFlinger::createConnection() 126{ 127 sp<ISurfaceComposerClient> bclient; 128 sp<Client> client(new Client(this)); 129 status_t err = client->initCheck(); 130 if (err == NO_ERROR) { 131 bclient = client; 132 } 133 return bclient; 134} 135 136sp<ISurfaceComposerClient> SurfaceFlinger::createClientConnection() 137{ 138 sp<ISurfaceComposerClient> bclient; 139 sp<UserClient> client(new UserClient(this)); 140 status_t err = client->initCheck(); 141 if (err == NO_ERROR) { 142 bclient = client; 143 } 144 return bclient; 145} 146 147 148const GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) const 149{ 150 LOGE_IF(uint32_t(dpy) >= DISPLAY_COUNT, "Invalid DisplayID %d", dpy); 151 const GraphicPlane& plane(mGraphicPlanes[dpy]); 152 return plane; 153} 154 155GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) 156{ 157 return const_cast<GraphicPlane&>( 158 const_cast<SurfaceFlinger const *>(this)->graphicPlane(dpy)); 159} 160 161void SurfaceFlinger::bootFinished() 162{ 163 const nsecs_t now = systemTime(); 164 const nsecs_t duration = now - mBootTime; 165 LOGI("Boot is finished (%ld ms)", long(ns2ms(duration)) ); 166 mBootFinished = true; 167 property_set("ctl.stop", "bootanim"); 168} 169 170void SurfaceFlinger::onFirstRef() 171{ 172 run("SurfaceFlinger", PRIORITY_URGENT_DISPLAY); 173 174 // Wait for the main thread to be done with its initialization 175 mReadyToRunBarrier.wait(); 176} 177 178static inline uint16_t pack565(int r, int g, int b) { 179 return (r<<11)|(g<<5)|b; 180} 181 182status_t SurfaceFlinger::readyToRun() 183{ 184 LOGI( "SurfaceFlinger's main thread ready to run. " 185 "Initializing graphics H/W..."); 186 187 // we only support one display currently 188 int dpy = 0; 189 190 { 191 // initialize the main display 192 GraphicPlane& plane(graphicPlane(dpy)); 193 DisplayHardware* const hw = new DisplayHardware(this, dpy); 194 plane.setDisplayHardware(hw); 195 } 196 197 // create the shared control-block 198 mServerHeap = new MemoryHeapBase(4096, 199 MemoryHeapBase::READ_ONLY, "SurfaceFlinger read-only heap"); 200 LOGE_IF(mServerHeap==0, "can't create shared memory dealer"); 201 202 mServerCblk = static_cast<surface_flinger_cblk_t*>(mServerHeap->getBase()); 203 LOGE_IF(mServerCblk==0, "can't get to shared control block's address"); 204 205 new(mServerCblk) surface_flinger_cblk_t; 206 207 // initialize primary screen 208 // (other display should be initialized in the same manner, but 209 // asynchronously, as they could come and go. None of this is supported 210 // yet). 211 const GraphicPlane& plane(graphicPlane(dpy)); 212 const DisplayHardware& hw = plane.displayHardware(); 213 const uint32_t w = hw.getWidth(); 214 const uint32_t h = hw.getHeight(); 215 const uint32_t f = hw.getFormat(); 216 hw.makeCurrent(); 217 218 // initialize the shared control block 219 mServerCblk->connected |= 1<<dpy; 220 display_cblk_t* dcblk = mServerCblk->displays + dpy; 221 memset(dcblk, 0, sizeof(display_cblk_t)); 222 dcblk->w = plane.getWidth(); 223 dcblk->h = plane.getHeight(); 224 dcblk->format = f; 225 dcblk->orientation = ISurfaceComposer::eOrientationDefault; 226 dcblk->xdpi = hw.getDpiX(); 227 dcblk->ydpi = hw.getDpiY(); 228 dcblk->fps = hw.getRefreshRate(); 229 dcblk->density = hw.getDensity(); 230 231 // Initialize OpenGL|ES 232 glPixelStorei(GL_UNPACK_ALIGNMENT, 4); 233 glPixelStorei(GL_PACK_ALIGNMENT, 4); 234 glEnableClientState(GL_VERTEX_ARRAY); 235 glEnable(GL_SCISSOR_TEST); 236 glShadeModel(GL_FLAT); 237 glDisable(GL_DITHER); 238 glDisable(GL_CULL_FACE); 239 240 const uint16_t g0 = pack565(0x0F,0x1F,0x0F); 241 const uint16_t g1 = pack565(0x17,0x2f,0x17); 242 const uint16_t textureData[4] = { g0, g1, g1, g0 }; 243 glGenTextures(1, &mWormholeTexName); 244 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 245 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 246 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 247 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 248 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 249 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, 250 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, textureData); 251 252 glViewport(0, 0, w, h); 253 glMatrixMode(GL_PROJECTION); 254 glLoadIdentity(); 255 glOrthof(0, w, h, 0, 0, 1); 256 257 LayerDim::initDimmer(this, w, h); 258 259 mReadyToRunBarrier.open(); 260 261 /* 262 * We're now ready to accept clients... 263 */ 264 265 // start boot animation 266 property_set("ctl.start", "bootanim"); 267 268 return NO_ERROR; 269} 270 271// ---------------------------------------------------------------------------- 272#if 0 273#pragma mark - 274#pragma mark Events Handler 275#endif 276 277void SurfaceFlinger::waitForEvent() 278{ 279 while (true) { 280 nsecs_t timeout = -1; 281 const nsecs_t freezeDisplayTimeout = ms2ns(5000); 282 if (UNLIKELY(isFrozen())) { 283 // wait 5 seconds 284 const nsecs_t now = systemTime(); 285 if (mFreezeDisplayTime == 0) { 286 mFreezeDisplayTime = now; 287 } 288 nsecs_t waitTime = freezeDisplayTimeout - (now - mFreezeDisplayTime); 289 timeout = waitTime>0 ? waitTime : 0; 290 } 291 292 sp<MessageBase> msg = mEventQueue.waitMessage(timeout); 293 294 // see if we timed out 295 if (isFrozen()) { 296 const nsecs_t now = systemTime(); 297 nsecs_t frozenTime = (now - mFreezeDisplayTime); 298 if (frozenTime >= freezeDisplayTimeout) { 299 // we timed out and are still frozen 300 LOGW("timeout expired mFreezeDisplay=%d, mFreezeCount=%d", 301 mFreezeDisplay, mFreezeCount); 302 mFreezeDisplayTime = 0; 303 mFreezeCount = 0; 304 mFreezeDisplay = false; 305 } 306 } 307 308 if (msg != 0) { 309 switch (msg->what) { 310 case MessageQueue::INVALIDATE: 311 // invalidate message, just return to the main loop 312 return; 313 } 314 } 315 } 316} 317 318void SurfaceFlinger::signalEvent() { 319 mEventQueue.invalidate(); 320} 321 322void SurfaceFlinger::signal() const { 323 // this is the IPC call 324 const_cast<SurfaceFlinger*>(this)->signalEvent(); 325} 326 327status_t SurfaceFlinger::postMessageAsync(const sp<MessageBase>& msg, 328 nsecs_t reltime, uint32_t flags) 329{ 330 return mEventQueue.postMessage(msg, reltime, flags); 331} 332 333status_t SurfaceFlinger::postMessageSync(const sp<MessageBase>& msg, 334 nsecs_t reltime, uint32_t flags) 335{ 336 status_t res = mEventQueue.postMessage(msg, reltime, flags); 337 if (res == NO_ERROR) { 338 msg->wait(); 339 } 340 return res; 341} 342 343// ---------------------------------------------------------------------------- 344#if 0 345#pragma mark - 346#pragma mark Main loop 347#endif 348 349bool SurfaceFlinger::threadLoop() 350{ 351 waitForEvent(); 352 353 // check for transactions 354 if (UNLIKELY(mConsoleSignals)) { 355 handleConsoleEvents(); 356 } 357 358 if (LIKELY(mTransactionCount == 0)) { 359 // if we're in a global transaction, don't do anything. 360 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 361 uint32_t transactionFlags = getTransactionFlags(mask); 362 if (LIKELY(transactionFlags)) { 363 handleTransaction(transactionFlags); 364 } 365 } 366 367 // post surfaces (if needed) 368 handlePageFlip(); 369 370 if (UNLIKELY(mHwWorkListDirty)) { 371 // build the h/w work list 372 handleWorkList(); 373 } 374 375 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 376 if (LIKELY(hw.canDraw() && !isFrozen())) { 377 // repaint the framebuffer (if needed) 378 379 const int index = hw.getCurrentBufferIndex(); 380 GraphicLog& logger(GraphicLog::getInstance()); 381 382 logger.log(GraphicLog::SF_REPAINT, index); 383 handleRepaint(); 384 385 // inform the h/w that we're done compositing 386 logger.log(GraphicLog::SF_COMPOSITION_COMPLETE, index); 387 hw.compositionComplete(); 388 389 logger.log(GraphicLog::SF_SWAP_BUFFERS, index); 390 postFramebuffer(); 391 392 logger.log(GraphicLog::SF_UNLOCK_CLIENTS, index); 393 unlockClients(); 394 395 logger.log(GraphicLog::SF_REPAINT_DONE, index); 396 } else { 397 // pretend we did the post 398 hw.compositionComplete(); 399 unlockClients(); 400 usleep(16667); // 60 fps period 401 } 402 return true; 403} 404 405void SurfaceFlinger::postFramebuffer() 406{ 407 if (!mInvalidRegion.isEmpty()) { 408 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 409 const nsecs_t now = systemTime(); 410 mDebugInSwapBuffers = now; 411 hw.flip(mInvalidRegion); 412 mLastSwapBufferTime = systemTime() - now; 413 mDebugInSwapBuffers = 0; 414 mInvalidRegion.clear(); 415 } 416} 417 418void SurfaceFlinger::handleConsoleEvents() 419{ 420 // something to do with the console 421 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 422 423 int what = android_atomic_and(0, &mConsoleSignals); 424 if (what & eConsoleAcquired) { 425 hw.acquireScreen(); 426 // this is a temporary work-around, eventually this should be called 427 // by the power-manager 428 SurfaceFlinger::turnElectronBeamOn(mElectronBeamAnimationMode); 429 } 430 431 if (mDeferReleaseConsole && hw.isScreenAcquired()) { 432 // We got the release signal before the acquire signal 433 mDeferReleaseConsole = false; 434 hw.releaseScreen(); 435 } 436 437 if (what & eConsoleReleased) { 438 if (hw.isScreenAcquired()) { 439 hw.releaseScreen(); 440 } else { 441 mDeferReleaseConsole = true; 442 } 443 } 444 445 mDirtyRegion.set(hw.bounds()); 446} 447 448void SurfaceFlinger::handleTransaction(uint32_t transactionFlags) 449{ 450 Vector< sp<LayerBase> > ditchedLayers; 451 452 /* 453 * Perform and commit the transaction 454 */ 455 456 { // scope for the lock 457 Mutex::Autolock _l(mStateLock); 458 const nsecs_t now = systemTime(); 459 mDebugInTransaction = now; 460 handleTransactionLocked(transactionFlags, ditchedLayers); 461 mLastTransactionTime = systemTime() - now; 462 mDebugInTransaction = 0; 463 invalidateHwcGeometry(); 464 // here the transaction has been committed 465 } 466 467 /* 468 * Clean-up all layers that went away 469 * (do this without the lock held) 470 */ 471 472 const size_t count = ditchedLayers.size(); 473 for (size_t i=0 ; i<count ; i++) { 474 if (ditchedLayers[i] != 0) { 475 //LOGD("ditching layer %p", ditchedLayers[i].get()); 476 ditchedLayers[i]->ditch(); 477 } 478 } 479} 480 481void SurfaceFlinger::handleTransactionLocked( 482 uint32_t transactionFlags, Vector< sp<LayerBase> >& ditchedLayers) 483{ 484 const LayerVector& currentLayers(mCurrentState.layersSortedByZ); 485 const size_t count = currentLayers.size(); 486 487 /* 488 * Traversal of the children 489 * (perform the transaction for each of them if needed) 490 */ 491 492 const bool layersNeedTransaction = transactionFlags & eTraversalNeeded; 493 if (layersNeedTransaction) { 494 for (size_t i=0 ; i<count ; i++) { 495 const sp<LayerBase>& layer = currentLayers[i]; 496 uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded); 497 if (!trFlags) continue; 498 499 const uint32_t flags = layer->doTransaction(0); 500 if (flags & Layer::eVisibleRegion) 501 mVisibleRegionsDirty = true; 502 } 503 } 504 505 /* 506 * Perform our own transaction if needed 507 */ 508 509 if (transactionFlags & eTransactionNeeded) { 510 if (mCurrentState.orientation != mDrawingState.orientation) { 511 // the orientation has changed, recompute all visible regions 512 // and invalidate everything. 513 514 const int dpy = 0; 515 const int orientation = mCurrentState.orientation; 516 const uint32_t type = mCurrentState.orientationType; 517 GraphicPlane& plane(graphicPlane(dpy)); 518 plane.setOrientation(orientation); 519 520 // update the shared control block 521 const DisplayHardware& hw(plane.displayHardware()); 522 volatile display_cblk_t* dcblk = mServerCblk->displays + dpy; 523 dcblk->orientation = orientation; 524 dcblk->w = plane.getWidth(); 525 dcblk->h = plane.getHeight(); 526 527 mVisibleRegionsDirty = true; 528 mDirtyRegion.set(hw.bounds()); 529 } 530 531 if (mCurrentState.freezeDisplay != mDrawingState.freezeDisplay) { 532 // freezing or unfreezing the display -> trigger animation if needed 533 mFreezeDisplay = mCurrentState.freezeDisplay; 534 if (mFreezeDisplay) 535 mFreezeDisplayTime = 0; 536 } 537 538 if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) { 539 // layers have been added 540 mVisibleRegionsDirty = true; 541 } 542 543 // some layers might have been removed, so 544 // we need to update the regions they're exposing. 545 if (mLayersRemoved) { 546 mLayersRemoved = false; 547 mVisibleRegionsDirty = true; 548 const LayerVector& previousLayers(mDrawingState.layersSortedByZ); 549 const size_t count = previousLayers.size(); 550 for (size_t i=0 ; i<count ; i++) { 551 const sp<LayerBase>& layer(previousLayers[i]); 552 if (currentLayers.indexOf( layer ) < 0) { 553 // this layer is not visible anymore 554 ditchedLayers.add(layer); 555 mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen); 556 } 557 } 558 } 559 } 560 561 commitTransaction(); 562} 563 564sp<FreezeLock> SurfaceFlinger::getFreezeLock() const 565{ 566 return new FreezeLock(const_cast<SurfaceFlinger *>(this)); 567} 568 569void SurfaceFlinger::computeVisibleRegions( 570 LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion) 571{ 572 const GraphicPlane& plane(graphicPlane(0)); 573 const Transform& planeTransform(plane.transform()); 574 const DisplayHardware& hw(plane.displayHardware()); 575 const Region screenRegion(hw.bounds()); 576 577 Region aboveOpaqueLayers; 578 Region aboveCoveredLayers; 579 Region dirty; 580 581 bool secureFrameBuffer = false; 582 583 size_t i = currentLayers.size(); 584 while (i--) { 585 const sp<LayerBase>& layer = currentLayers[i]; 586 layer->validateVisibility(planeTransform); 587 588 // start with the whole surface at its current location 589 const Layer::State& s(layer->drawingState()); 590 591 /* 592 * opaqueRegion: area of a surface that is fully opaque. 593 */ 594 Region opaqueRegion; 595 596 /* 597 * visibleRegion: area of a surface that is visible on screen 598 * and not fully transparent. This is essentially the layer's 599 * footprint minus the opaque regions above it. 600 * Areas covered by a translucent surface are considered visible. 601 */ 602 Region visibleRegion; 603 604 /* 605 * coveredRegion: area of a surface that is covered by all 606 * visible regions above it (which includes the translucent areas). 607 */ 608 Region coveredRegion; 609 610 611 // handle hidden surfaces by setting the visible region to empty 612 if (LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) { 613 const bool translucent = layer->needsBlending(); 614 const Rect bounds(layer->visibleBounds()); 615 visibleRegion.set(bounds); 616 visibleRegion.andSelf(screenRegion); 617 if (!visibleRegion.isEmpty()) { 618 // Remove the transparent area from the visible region 619 if (translucent) { 620 visibleRegion.subtractSelf(layer->transparentRegionScreen); 621 } 622 623 // compute the opaque region 624 const int32_t layerOrientation = layer->getOrientation(); 625 if (s.alpha==255 && !translucent && 626 ((layerOrientation & Transform::ROT_INVALID) == false)) { 627 // the opaque region is the layer's footprint 628 opaqueRegion = visibleRegion; 629 } 630 } 631 } 632 633 // Clip the covered region to the visible region 634 coveredRegion = aboveCoveredLayers.intersect(visibleRegion); 635 636 // Update aboveCoveredLayers for next (lower) layer 637 aboveCoveredLayers.orSelf(visibleRegion); 638 639 // subtract the opaque region covered by the layers above us 640 visibleRegion.subtractSelf(aboveOpaqueLayers); 641 642 // compute this layer's dirty region 643 if (layer->contentDirty) { 644 // we need to invalidate the whole region 645 dirty = visibleRegion; 646 // as well, as the old visible region 647 dirty.orSelf(layer->visibleRegionScreen); 648 layer->contentDirty = false; 649 } else { 650 /* compute the exposed region: 651 * the exposed region consists of two components: 652 * 1) what's VISIBLE now and was COVERED before 653 * 2) what's EXPOSED now less what was EXPOSED before 654 * 655 * note that (1) is conservative, we start with the whole 656 * visible region but only keep what used to be covered by 657 * something -- which mean it may have been exposed. 658 * 659 * (2) handles areas that were not covered by anything but got 660 * exposed because of a resize. 661 */ 662 const Region newExposed = visibleRegion - coveredRegion; 663 const Region oldVisibleRegion = layer->visibleRegionScreen; 664 const Region oldCoveredRegion = layer->coveredRegionScreen; 665 const Region oldExposed = oldVisibleRegion - oldCoveredRegion; 666 dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed); 667 } 668 dirty.subtractSelf(aboveOpaqueLayers); 669 670 // accumulate to the screen dirty region 671 dirtyRegion.orSelf(dirty); 672 673 // Update aboveOpaqueLayers for next (lower) layer 674 aboveOpaqueLayers.orSelf(opaqueRegion); 675 676 // Store the visible region is screen space 677 layer->setVisibleRegion(visibleRegion); 678 layer->setCoveredRegion(coveredRegion); 679 680 // If a secure layer is partially visible, lock-down the screen! 681 if (layer->isSecure() && !visibleRegion.isEmpty()) { 682 secureFrameBuffer = true; 683 } 684 } 685 686 // invalidate the areas where a layer was removed 687 dirtyRegion.orSelf(mDirtyRegionRemovedLayer); 688 mDirtyRegionRemovedLayer.clear(); 689 690 mSecureFrameBuffer = secureFrameBuffer; 691 opaqueRegion = aboveOpaqueLayers; 692} 693 694 695void SurfaceFlinger::commitTransaction() 696{ 697 mDrawingState = mCurrentState; 698 mResizeTransationPending = false; 699 mTransactionCV.broadcast(); 700} 701 702void SurfaceFlinger::handlePageFlip() 703{ 704 bool visibleRegions = mVisibleRegionsDirty; 705 LayerVector& currentLayers( 706 const_cast<LayerVector&>(mDrawingState.layersSortedByZ)); 707 visibleRegions |= lockPageFlip(currentLayers); 708 709 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 710 const Region screenRegion(hw.bounds()); 711 if (visibleRegions) { 712 Region opaqueRegion; 713 computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion); 714 715 /* 716 * rebuild the visible layer list 717 */ 718 mVisibleLayersSortedByZ.clear(); 719 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 720 size_t count = currentLayers.size(); 721 mVisibleLayersSortedByZ.setCapacity(count); 722 for (size_t i=0 ; i<count ; i++) { 723 if (!currentLayers[i]->visibleRegionScreen.isEmpty()) 724 mVisibleLayersSortedByZ.add(currentLayers[i]); 725 } 726 727 mWormholeRegion = screenRegion.subtract(opaqueRegion); 728 mVisibleRegionsDirty = false; 729 invalidateHwcGeometry(); 730 } 731 732 unlockPageFlip(currentLayers); 733 mDirtyRegion.andSelf(screenRegion); 734} 735 736void SurfaceFlinger::invalidateHwcGeometry() 737{ 738 mHwWorkListDirty = true; 739} 740 741bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers) 742{ 743 bool recomputeVisibleRegions = false; 744 size_t count = currentLayers.size(); 745 sp<LayerBase> const* layers = currentLayers.array(); 746 for (size_t i=0 ; i<count ; i++) { 747 const sp<LayerBase>& layer(layers[i]); 748 layer->lockPageFlip(recomputeVisibleRegions); 749 } 750 return recomputeVisibleRegions; 751} 752 753void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers) 754{ 755 const GraphicPlane& plane(graphicPlane(0)); 756 const Transform& planeTransform(plane.transform()); 757 size_t count = currentLayers.size(); 758 sp<LayerBase> const* layers = currentLayers.array(); 759 for (size_t i=0 ; i<count ; i++) { 760 const sp<LayerBase>& layer(layers[i]); 761 layer->unlockPageFlip(planeTransform, mDirtyRegion); 762 } 763} 764 765void SurfaceFlinger::handleWorkList() 766{ 767 mHwWorkListDirty = false; 768 HWComposer& hwc(graphicPlane(0).displayHardware().getHwComposer()); 769 if (hwc.initCheck() == NO_ERROR) { 770 const Vector< sp<LayerBase> >& currentLayers(mVisibleLayersSortedByZ); 771 const size_t count = currentLayers.size(); 772 hwc.createWorkList(count); 773 hwc_layer_t* const cur(hwc.getLayers()); 774 for (size_t i=0 ; cur && i<count ; i++) { 775 currentLayers[i]->setGeometry(&cur[i]); 776 if (mDebugDisableHWC) { 777 cur[i].compositionType = HWC_FRAMEBUFFER; 778 cur[i].flags |= HWC_SKIP_LAYER; 779 } 780 } 781 } 782} 783 784void SurfaceFlinger::handleRepaint() 785{ 786 // compute the invalid region 787 mInvalidRegion.orSelf(mDirtyRegion); 788 789 if (UNLIKELY(mDebugRegion)) { 790 debugFlashRegions(); 791 } 792 793 // set the frame buffer 794 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 795 glMatrixMode(GL_MODELVIEW); 796 glLoadIdentity(); 797 798 uint32_t flags = hw.getFlags(); 799 if ((flags & DisplayHardware::SWAP_RECTANGLE) || 800 (flags & DisplayHardware::BUFFER_PRESERVED)) 801 { 802 // we can redraw only what's dirty, but since SWAP_RECTANGLE only 803 // takes a rectangle, we must make sure to update that whole 804 // rectangle in that case 805 if (flags & DisplayHardware::SWAP_RECTANGLE) { 806 // TODO: we really should be able to pass a region to 807 // SWAP_RECTANGLE so that we don't have to redraw all this. 808 mDirtyRegion.set(mInvalidRegion.bounds()); 809 } else { 810 // in the BUFFER_PRESERVED case, obviously, we can update only 811 // what's needed and nothing more. 812 // NOTE: this is NOT a common case, as preserving the backbuffer 813 // is costly and usually involves copying the whole update back. 814 } 815 } else { 816 if (flags & DisplayHardware::PARTIAL_UPDATES) { 817 // We need to redraw the rectangle that will be updated 818 // (pushed to the framebuffer). 819 // This is needed because PARTIAL_UPDATES only takes one 820 // rectangle instead of a region (see DisplayHardware::flip()) 821 mDirtyRegion.set(mInvalidRegion.bounds()); 822 } else { 823 // we need to redraw everything (the whole screen) 824 mDirtyRegion.set(hw.bounds()); 825 mInvalidRegion = mDirtyRegion; 826 } 827 } 828 829 // compose all surfaces 830 composeSurfaces(mDirtyRegion); 831 832 // clear the dirty regions 833 mDirtyRegion.clear(); 834} 835 836void SurfaceFlinger::composeSurfaces(const Region& dirty) 837{ 838 if (UNLIKELY(!mWormholeRegion.isEmpty())) { 839 // should never happen unless the window manager has a bug 840 // draw something... 841 drawWormhole(); 842 } 843 844 status_t err = NO_ERROR; 845 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 846 size_t count = layers.size(); 847 848 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 849 HWComposer& hwc(hw.getHwComposer()); 850 hwc_layer_t* const cur(hwc.getLayers()); 851 852 LOGE_IF(cur && hwc.getNumLayers() != count, 853 "HAL number of layers (%d) doesn't match surfaceflinger (%d)", 854 hwc.getNumLayers(), count); 855 856 // just to be extra-safe, use the smallest count 857 if (hwc.initCheck() == NO_ERROR) { 858 count = count < hwc.getNumLayers() ? count : hwc.getNumLayers(); 859 } 860 861 /* 862 * update the per-frame h/w composer data for each layer 863 * and build the transparent region of the FB 864 */ 865 Region transparent; 866 if (cur) { 867 for (size_t i=0 ; i<count ; i++) { 868 const sp<LayerBase>& layer(layers[i]); 869 layer->setPerFrameData(&cur[i]); 870 if (cur[i].hints & HWC_HINT_CLEAR_FB) { 871 if (!(layer->needsBlending())) { 872 transparent.orSelf(layer->visibleRegionScreen); 873 } 874 } 875 } 876 err = hwc.prepare(); 877 LOGE_IF(err, "HWComposer::prepare failed (%s)", strerror(-err)); 878 } 879 880 /* 881 * clear the area of the FB that need to be transparent 882 */ 883 transparent.andSelf(dirty); 884 if (!transparent.isEmpty()) { 885 glClearColor(0,0,0,0); 886 Region::const_iterator it = transparent.begin(); 887 Region::const_iterator const end = transparent.end(); 888 const int32_t height = hw.getHeight(); 889 while (it != end) { 890 const Rect& r(*it++); 891 const GLint sy = height - (r.top + r.height()); 892 glScissor(r.left, sy, r.width(), r.height()); 893 glClear(GL_COLOR_BUFFER_BIT); 894 } 895 } 896 897 898 /* 899 * and then, render the layers targeted at the framebuffer 900 */ 901 for (size_t i=0 ; i<count ; i++) { 902 if (cur) { 903 if ((cur[i].compositionType != HWC_FRAMEBUFFER) && 904 !(cur[i].flags & HWC_SKIP_LAYER)) { 905 // skip layers handled by the HAL 906 continue; 907 } 908 } 909 910 const sp<LayerBase>& layer(layers[i]); 911 const Region clip(dirty.intersect(layer->visibleRegionScreen)); 912 if (!clip.isEmpty()) { 913 layer->draw(clip); 914 } 915 } 916} 917 918void SurfaceFlinger::unlockClients() 919{ 920 const LayerVector& drawingLayers(mDrawingState.layersSortedByZ); 921 const size_t count = drawingLayers.size(); 922 sp<LayerBase> const* const layers = drawingLayers.array(); 923 for (size_t i=0 ; i<count ; ++i) { 924 const sp<LayerBase>& layer = layers[i]; 925 layer->finishPageFlip(); 926 } 927} 928 929void SurfaceFlinger::debugFlashRegions() 930{ 931 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 932 const uint32_t flags = hw.getFlags(); 933 934 if (!((flags & DisplayHardware::SWAP_RECTANGLE) || 935 (flags & DisplayHardware::BUFFER_PRESERVED))) { 936 const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ? 937 mDirtyRegion.bounds() : hw.bounds()); 938 composeSurfaces(repaint); 939 } 940 941 TextureManager::deactivateTextures(); 942 943 glDisable(GL_BLEND); 944 glDisable(GL_DITHER); 945 glDisable(GL_SCISSOR_TEST); 946 947 static int toggle = 0; 948 toggle = 1 - toggle; 949 if (toggle) { 950 glColor4f(1, 0, 1, 1); 951 } else { 952 glColor4f(1, 1, 0, 1); 953 } 954 955 Region::const_iterator it = mDirtyRegion.begin(); 956 Region::const_iterator const end = mDirtyRegion.end(); 957 while (it != end) { 958 const Rect& r = *it++; 959 GLfloat vertices[][2] = { 960 { r.left, r.top }, 961 { r.left, r.bottom }, 962 { r.right, r.bottom }, 963 { r.right, r.top } 964 }; 965 glVertexPointer(2, GL_FLOAT, 0, vertices); 966 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 967 } 968 969 if (mInvalidRegion.isEmpty()) { 970 mDirtyRegion.dump("mDirtyRegion"); 971 mInvalidRegion.dump("mInvalidRegion"); 972 } 973 hw.flip(mInvalidRegion); 974 975 if (mDebugRegion > 1) 976 usleep(mDebugRegion * 1000); 977 978 glEnable(GL_SCISSOR_TEST); 979 //mDirtyRegion.dump("mDirtyRegion"); 980} 981 982void SurfaceFlinger::drawWormhole() const 983{ 984 const Region region(mWormholeRegion.intersect(mDirtyRegion)); 985 if (region.isEmpty()) 986 return; 987 988 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 989 const int32_t width = hw.getWidth(); 990 const int32_t height = hw.getHeight(); 991 992 glDisable(GL_BLEND); 993 glDisable(GL_DITHER); 994 995 if (LIKELY(!mDebugBackground)) { 996 glClearColor(0,0,0,0); 997 Region::const_iterator it = region.begin(); 998 Region::const_iterator const end = region.end(); 999 while (it != end) { 1000 const Rect& r = *it++; 1001 const GLint sy = height - (r.top + r.height()); 1002 glScissor(r.left, sy, r.width(), r.height()); 1003 glClear(GL_COLOR_BUFFER_BIT); 1004 } 1005 } else { 1006 const GLshort vertices[][2] = { { 0, 0 }, { width, 0 }, 1007 { width, height }, { 0, height } }; 1008 const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } }; 1009 glVertexPointer(2, GL_SHORT, 0, vertices); 1010 glTexCoordPointer(2, GL_SHORT, 0, tcoords); 1011 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1012#if defined(GL_OES_EGL_image_external) 1013 if (GLExtensions::getInstance().haveTextureExternal()) { 1014 glDisable(GL_TEXTURE_EXTERNAL_OES); 1015 } 1016#endif 1017 glEnable(GL_TEXTURE_2D); 1018 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 1019 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1020 glMatrixMode(GL_TEXTURE); 1021 glLoadIdentity(); 1022 glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1); 1023 Region::const_iterator it = region.begin(); 1024 Region::const_iterator const end = region.end(); 1025 while (it != end) { 1026 const Rect& r = *it++; 1027 const GLint sy = height - (r.top + r.height()); 1028 glScissor(r.left, sy, r.width(), r.height()); 1029 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1030 } 1031 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1032 glLoadIdentity(); 1033 glMatrixMode(GL_MODELVIEW); 1034 } 1035} 1036 1037void SurfaceFlinger::debugShowFPS() const 1038{ 1039 static int mFrameCount; 1040 static int mLastFrameCount = 0; 1041 static nsecs_t mLastFpsTime = 0; 1042 static float mFps = 0; 1043 mFrameCount++; 1044 nsecs_t now = systemTime(); 1045 nsecs_t diff = now - mLastFpsTime; 1046 if (diff > ms2ns(250)) { 1047 mFps = ((mFrameCount - mLastFrameCount) * float(s2ns(1))) / diff; 1048 mLastFpsTime = now; 1049 mLastFrameCount = mFrameCount; 1050 } 1051 // XXX: mFPS has the value we want 1052 } 1053 1054status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer) 1055{ 1056 Mutex::Autolock _l(mStateLock); 1057 addLayer_l(layer); 1058 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1059 return NO_ERROR; 1060} 1061 1062status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer) 1063{ 1064 ssize_t i = mCurrentState.layersSortedByZ.add(layer); 1065 return (i < 0) ? status_t(i) : status_t(NO_ERROR); 1066} 1067 1068ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client, 1069 const sp<LayerBaseClient>& lbc) 1070{ 1071 Mutex::Autolock _l(mStateLock); 1072 1073 // attach this layer to the client 1074 ssize_t name = client->attachLayer(lbc); 1075 1076 // add this layer to the current state list 1077 addLayer_l(lbc); 1078 1079 return name; 1080} 1081 1082status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer) 1083{ 1084 Mutex::Autolock _l(mStateLock); 1085 status_t err = purgatorizeLayer_l(layer); 1086 if (err == NO_ERROR) 1087 setTransactionFlags(eTransactionNeeded); 1088 return err; 1089} 1090 1091status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase) 1092{ 1093 sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient()); 1094 if (lbc != 0) { 1095 mLayerMap.removeItem( lbc->getSurface()->asBinder() ); 1096 } 1097 ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase); 1098 if (index >= 0) { 1099 mLayersRemoved = true; 1100 return NO_ERROR; 1101 } 1102 return status_t(index); 1103} 1104 1105status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase) 1106{ 1107 // remove the layer from the main list (through a transaction). 1108 ssize_t err = removeLayer_l(layerBase); 1109 1110 layerBase->onRemoved(); 1111 1112 // it's possible that we don't find a layer, because it might 1113 // have been destroyed already -- this is not technically an error 1114 // from the user because there is a race between Client::destroySurface(), 1115 // ~Client() and ~ISurface(). 1116 return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err; 1117} 1118 1119status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer) 1120{ 1121 layer->forceVisibilityTransaction(); 1122 setTransactionFlags(eTraversalNeeded); 1123 return NO_ERROR; 1124} 1125 1126uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags) 1127{ 1128 return android_atomic_and(~flags, &mTransactionFlags) & flags; 1129} 1130 1131uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags) 1132{ 1133 uint32_t old = android_atomic_or(flags, &mTransactionFlags); 1134 if ((old & flags)==0) { // wake the server up 1135 signalEvent(); 1136 } 1137 return old; 1138} 1139 1140void SurfaceFlinger::openGlobalTransaction() 1141{ 1142 android_atomic_inc(&mTransactionCount); 1143} 1144 1145void SurfaceFlinger::closeGlobalTransaction() 1146{ 1147 if (android_atomic_dec(&mTransactionCount) == 1) { 1148 signalEvent(); 1149 1150 // if there is a transaction with a resize, wait for it to 1151 // take effect before returning. 1152 Mutex::Autolock _l(mStateLock); 1153 while (mResizeTransationPending) { 1154 status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5)); 1155 if (CC_UNLIKELY(err != NO_ERROR)) { 1156 // just in case something goes wrong in SF, return to the 1157 // called after a few seconds. 1158 LOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!"); 1159 mResizeTransationPending = false; 1160 break; 1161 } 1162 } 1163 } 1164} 1165 1166status_t SurfaceFlinger::freezeDisplay(DisplayID dpy, uint32_t flags) 1167{ 1168 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1169 return BAD_VALUE; 1170 1171 Mutex::Autolock _l(mStateLock); 1172 mCurrentState.freezeDisplay = 1; 1173 setTransactionFlags(eTransactionNeeded); 1174 1175 // flags is intended to communicate some sort of animation behavior 1176 // (for instance fading) 1177 return NO_ERROR; 1178} 1179 1180status_t SurfaceFlinger::unfreezeDisplay(DisplayID dpy, uint32_t flags) 1181{ 1182 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1183 return BAD_VALUE; 1184 1185 Mutex::Autolock _l(mStateLock); 1186 mCurrentState.freezeDisplay = 0; 1187 setTransactionFlags(eTransactionNeeded); 1188 1189 // flags is intended to communicate some sort of animation behavior 1190 // (for instance fading) 1191 return NO_ERROR; 1192} 1193 1194int SurfaceFlinger::setOrientation(DisplayID dpy, 1195 int orientation, uint32_t flags) 1196{ 1197 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1198 return BAD_VALUE; 1199 1200 Mutex::Autolock _l(mStateLock); 1201 if (mCurrentState.orientation != orientation) { 1202 if (uint32_t(orientation)<=eOrientation270 || orientation==42) { 1203 mCurrentState.orientationType = flags; 1204 mCurrentState.orientation = orientation; 1205 setTransactionFlags(eTransactionNeeded); 1206 mTransactionCV.wait(mStateLock); 1207 } else { 1208 orientation = BAD_VALUE; 1209 } 1210 } 1211 return orientation; 1212} 1213 1214sp<ISurface> SurfaceFlinger::createSurface(const sp<Client>& client, int pid, 1215 const String8& name, ISurfaceComposerClient::surface_data_t* params, 1216 DisplayID d, uint32_t w, uint32_t h, PixelFormat format, 1217 uint32_t flags) 1218{ 1219 sp<LayerBaseClient> layer; 1220 sp<LayerBaseClient::Surface> surfaceHandle; 1221 1222 if (int32_t(w|h) < 0) { 1223 LOGE("createSurface() failed, w or h is negative (w=%d, h=%d)", 1224 int(w), int(h)); 1225 return surfaceHandle; 1226 } 1227 1228 //LOGD("createSurface for pid %d (%d x %d)", pid, w, h); 1229 sp<Layer> normalLayer; 1230 switch (flags & eFXSurfaceMask) { 1231 case eFXSurfaceNormal: 1232 normalLayer = createNormalSurface(client, d, w, h, flags, format); 1233 layer = normalLayer; 1234 break; 1235 case eFXSurfaceBlur: 1236 // for now we treat Blur as Dim, until we can implement it 1237 // efficiently. 1238 case eFXSurfaceDim: 1239 layer = createDimSurface(client, d, w, h, flags); 1240 break; 1241 } 1242 1243 if (layer != 0) { 1244 layer->initStates(w, h, flags); 1245 layer->setName(name); 1246 ssize_t token = addClientLayer(client, layer); 1247 1248 surfaceHandle = layer->getSurface(); 1249 if (surfaceHandle != 0) { 1250 params->token = token; 1251 params->identity = surfaceHandle->getIdentity(); 1252 params->width = w; 1253 params->height = h; 1254 params->format = format; 1255 if (normalLayer != 0) { 1256 Mutex::Autolock _l(mStateLock); 1257 mLayerMap.add(surfaceHandle->asBinder(), normalLayer); 1258 } 1259 } 1260 1261 setTransactionFlags(eTransactionNeeded); 1262 } 1263 1264 return surfaceHandle; 1265} 1266 1267sp<Layer> SurfaceFlinger::createNormalSurface( 1268 const sp<Client>& client, DisplayID display, 1269 uint32_t w, uint32_t h, uint32_t flags, 1270 PixelFormat& format) 1271{ 1272 // initialize the surfaces 1273 switch (format) { // TODO: take h/w into account 1274 case PIXEL_FORMAT_TRANSPARENT: 1275 case PIXEL_FORMAT_TRANSLUCENT: 1276 format = PIXEL_FORMAT_RGBA_8888; 1277 break; 1278 case PIXEL_FORMAT_OPAQUE: 1279#ifdef NO_RGBX_8888 1280 format = PIXEL_FORMAT_RGB_565; 1281#else 1282 format = PIXEL_FORMAT_RGBX_8888; 1283#endif 1284 break; 1285 } 1286 1287#ifdef NO_RGBX_8888 1288 if (format == PIXEL_FORMAT_RGBX_8888) 1289 format = PIXEL_FORMAT_RGBA_8888; 1290#endif 1291 1292 sp<Layer> layer = new Layer(this, display, client); 1293 status_t err = layer->setBuffers(w, h, format, flags); 1294 if (LIKELY(err != NO_ERROR)) { 1295 LOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err)); 1296 layer.clear(); 1297 } 1298 return layer; 1299} 1300 1301sp<LayerDim> SurfaceFlinger::createDimSurface( 1302 const sp<Client>& client, DisplayID display, 1303 uint32_t w, uint32_t h, uint32_t flags) 1304{ 1305 sp<LayerDim> layer = new LayerDim(this, display, client); 1306 layer->initStates(w, h, flags); 1307 return layer; 1308} 1309 1310status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid) 1311{ 1312 /* 1313 * called by the window manager, when a surface should be marked for 1314 * destruction. 1315 * 1316 * The surface is removed from the current and drawing lists, but placed 1317 * in the purgatory queue, so it's not destroyed right-away (we need 1318 * to wait for all client's references to go away first). 1319 */ 1320 1321 status_t err = NAME_NOT_FOUND; 1322 Mutex::Autolock _l(mStateLock); 1323 sp<LayerBaseClient> layer = client->getLayerUser(sid); 1324 if (layer != 0) { 1325 err = purgatorizeLayer_l(layer); 1326 if (err == NO_ERROR) { 1327 setTransactionFlags(eTransactionNeeded); 1328 } 1329 } 1330 return err; 1331} 1332 1333status_t SurfaceFlinger::destroySurface(const sp<LayerBaseClient>& layer) 1334{ 1335 // called by ~ISurface() when all references are gone 1336 1337 class MessageDestroySurface : public MessageBase { 1338 SurfaceFlinger* flinger; 1339 sp<LayerBaseClient> layer; 1340 public: 1341 MessageDestroySurface( 1342 SurfaceFlinger* flinger, const sp<LayerBaseClient>& layer) 1343 : flinger(flinger), layer(layer) { } 1344 virtual bool handler() { 1345 sp<LayerBaseClient> l(layer); 1346 layer.clear(); // clear it outside of the lock; 1347 Mutex::Autolock _l(flinger->mStateLock); 1348 /* 1349 * remove the layer from the current list -- chances are that it's 1350 * not in the list anyway, because it should have been removed 1351 * already upon request of the client (eg: window manager). 1352 * However, a buggy client could have not done that. 1353 * Since we know we don't have any more clients, we don't need 1354 * to use the purgatory. 1355 */ 1356 status_t err = flinger->removeLayer_l(l); 1357 LOGE_IF(err<0 && err != NAME_NOT_FOUND, 1358 "error removing layer=%p (%s)", l.get(), strerror(-err)); 1359 return true; 1360 } 1361 }; 1362 1363 postMessageAsync( new MessageDestroySurface(this, layer) ); 1364 return NO_ERROR; 1365} 1366 1367status_t SurfaceFlinger::setClientState( 1368 const sp<Client>& client, 1369 int32_t count, 1370 const layer_state_t* states) 1371{ 1372 Mutex::Autolock _l(mStateLock); 1373 uint32_t flags = 0; 1374 for (int i=0 ; i<count ; i++) { 1375 const layer_state_t& s(states[i]); 1376 sp<LayerBaseClient> layer(client->getLayerUser(s.surface)); 1377 if (layer != 0) { 1378 const uint32_t what = s.what; 1379 if (what & ePositionChanged) { 1380 if (layer->setPosition(s.x, s.y)) 1381 flags |= eTraversalNeeded; 1382 } 1383 if (what & eLayerChanged) { 1384 ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer); 1385 if (layer->setLayer(s.z)) { 1386 mCurrentState.layersSortedByZ.removeAt(idx); 1387 mCurrentState.layersSortedByZ.add(layer); 1388 // we need traversal (state changed) 1389 // AND transaction (list changed) 1390 flags |= eTransactionNeeded|eTraversalNeeded; 1391 } 1392 } 1393 if (what & eSizeChanged) { 1394 if (layer->setSize(s.w, s.h)) { 1395 flags |= eTraversalNeeded; 1396 mResizeTransationPending = true; 1397 } 1398 } 1399 if (what & eAlphaChanged) { 1400 if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f))) 1401 flags |= eTraversalNeeded; 1402 } 1403 if (what & eMatrixChanged) { 1404 if (layer->setMatrix(s.matrix)) 1405 flags |= eTraversalNeeded; 1406 } 1407 if (what & eTransparentRegionChanged) { 1408 if (layer->setTransparentRegionHint(s.transparentRegion)) 1409 flags |= eTraversalNeeded; 1410 } 1411 if (what & eVisibilityChanged) { 1412 if (layer->setFlags(s.flags, s.mask)) 1413 flags |= eTraversalNeeded; 1414 } 1415 } 1416 } 1417 if (flags) { 1418 setTransactionFlags(flags); 1419 } 1420 return NO_ERROR; 1421} 1422 1423void SurfaceFlinger::screenReleased(int dpy) 1424{ 1425 // this may be called by a signal handler, we can't do too much in here 1426 android_atomic_or(eConsoleReleased, &mConsoleSignals); 1427 signalEvent(); 1428} 1429 1430void SurfaceFlinger::screenAcquired(int dpy) 1431{ 1432 // this may be called by a signal handler, we can't do too much in here 1433 android_atomic_or(eConsoleAcquired, &mConsoleSignals); 1434 signalEvent(); 1435} 1436 1437status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args) 1438{ 1439 const size_t SIZE = 4096; 1440 char buffer[SIZE]; 1441 String8 result; 1442 if (!mDump.checkCalling()) { 1443 snprintf(buffer, SIZE, "Permission Denial: " 1444 "can't dump SurfaceFlinger from pid=%d, uid=%d\n", 1445 IPCThreadState::self()->getCallingPid(), 1446 IPCThreadState::self()->getCallingUid()); 1447 result.append(buffer); 1448 } else { 1449 1450 // figure out if we're stuck somewhere 1451 const nsecs_t now = systemTime(); 1452 const nsecs_t inSwapBuffers(mDebugInSwapBuffers); 1453 const nsecs_t inTransaction(mDebugInTransaction); 1454 nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0; 1455 nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0; 1456 1457 // Try to get the main lock, but don't insist if we can't 1458 // (this would indicate SF is stuck, but we want to be able to 1459 // print something in dumpsys). 1460 int retry = 3; 1461 while (mStateLock.tryLock()<0 && --retry>=0) { 1462 usleep(1000000); 1463 } 1464 const bool locked(retry >= 0); 1465 if (!locked) { 1466 snprintf(buffer, SIZE, 1467 "SurfaceFlinger appears to be unresponsive, " 1468 "dumping anyways (no locks held)\n"); 1469 result.append(buffer); 1470 } 1471 1472 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1473 const size_t count = currentLayers.size(); 1474 for (size_t i=0 ; i<count ; i++) { 1475 const sp<LayerBase>& layer(currentLayers[i]); 1476 layer->dump(result, buffer, SIZE); 1477 const Layer::State& s(layer->drawingState()); 1478 s.transparentRegion.dump(result, "transparentRegion"); 1479 layer->transparentRegionScreen.dump(result, "transparentRegionScreen"); 1480 layer->visibleRegionScreen.dump(result, "visibleRegionScreen"); 1481 } 1482 1483 mWormholeRegion.dump(result, "WormholeRegion"); 1484 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1485 snprintf(buffer, SIZE, 1486 " display frozen: %s, freezeCount=%d, orientation=%d, canDraw=%d\n", 1487 mFreezeDisplay?"yes":"no", mFreezeCount, 1488 mCurrentState.orientation, hw.canDraw()); 1489 result.append(buffer); 1490 snprintf(buffer, SIZE, 1491 " last eglSwapBuffers() time: %f us\n" 1492 " last transaction time : %f us\n", 1493 mLastSwapBufferTime/1000.0, mLastTransactionTime/1000.0); 1494 result.append(buffer); 1495 1496 if (inSwapBuffersDuration || !locked) { 1497 snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n", 1498 inSwapBuffersDuration/1000.0); 1499 result.append(buffer); 1500 } 1501 1502 if (inTransactionDuration || !locked) { 1503 snprintf(buffer, SIZE, " transaction time: %f us\n", 1504 inTransactionDuration/1000.0); 1505 result.append(buffer); 1506 } 1507 1508 HWComposer& hwc(hw.getHwComposer()); 1509 snprintf(buffer, SIZE, " h/w composer %s and %s\n", 1510 hwc.initCheck()==NO_ERROR ? "present" : "not present", 1511 mDebugDisableHWC ? "disabled" : "enabled"); 1512 result.append(buffer); 1513 hwc.dump(result, buffer, SIZE); 1514 1515 const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get()); 1516 alloc.dump(result); 1517 hw.dump(result); 1518 1519 if (locked) { 1520 mStateLock.unlock(); 1521 } 1522 } 1523 write(fd, result.string(), result.size()); 1524 return NO_ERROR; 1525} 1526 1527status_t SurfaceFlinger::onTransact( 1528 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1529{ 1530 switch (code) { 1531 case CREATE_CONNECTION: 1532 case OPEN_GLOBAL_TRANSACTION: 1533 case CLOSE_GLOBAL_TRANSACTION: 1534 case SET_ORIENTATION: 1535 case FREEZE_DISPLAY: 1536 case UNFREEZE_DISPLAY: 1537 case BOOT_FINISHED: 1538 case TURN_ELECTRON_BEAM_OFF: 1539 case TURN_ELECTRON_BEAM_ON: 1540 { 1541 // codes that require permission check 1542 IPCThreadState* ipc = IPCThreadState::self(); 1543 const int pid = ipc->getCallingPid(); 1544 const int uid = ipc->getCallingUid(); 1545 if ((uid != AID_GRAPHICS) && !mAccessSurfaceFlinger.check(pid, uid)) { 1546 LOGE("Permission Denial: " 1547 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1548 return PERMISSION_DENIED; 1549 } 1550 break; 1551 } 1552 case CAPTURE_SCREEN: 1553 { 1554 // codes that require permission check 1555 IPCThreadState* ipc = IPCThreadState::self(); 1556 const int pid = ipc->getCallingPid(); 1557 const int uid = ipc->getCallingUid(); 1558 if ((uid != AID_GRAPHICS) && !mReadFramebuffer.check(pid, uid)) { 1559 LOGE("Permission Denial: " 1560 "can't read framebuffer pid=%d, uid=%d", pid, uid); 1561 return PERMISSION_DENIED; 1562 } 1563 break; 1564 } 1565 } 1566 1567 status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags); 1568 if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) { 1569 CHECK_INTERFACE(ISurfaceComposer, data, reply); 1570 if (UNLIKELY(!mHardwareTest.checkCalling())) { 1571 IPCThreadState* ipc = IPCThreadState::self(); 1572 const int pid = ipc->getCallingPid(); 1573 const int uid = ipc->getCallingUid(); 1574 LOGE("Permission Denial: " 1575 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1576 return PERMISSION_DENIED; 1577 } 1578 int n; 1579 switch (code) { 1580 case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE 1581 case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE 1582 return NO_ERROR; 1583 case 1002: // SHOW_UPDATES 1584 n = data.readInt32(); 1585 mDebugRegion = n ? n : (mDebugRegion ? 0 : 1); 1586 return NO_ERROR; 1587 case 1003: // SHOW_BACKGROUND 1588 n = data.readInt32(); 1589 mDebugBackground = n ? 1 : 0; 1590 return NO_ERROR; 1591 case 1008: // toggle use of hw composer 1592 n = data.readInt32(); 1593 mDebugDisableHWC = n ? 1 : 0; 1594 invalidateHwcGeometry(); 1595 // fall-through... 1596 case 1004:{ // repaint everything 1597 Mutex::Autolock _l(mStateLock); 1598 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1599 mDirtyRegion.set(hw.bounds()); // careful that's not thread-safe 1600 signalEvent(); 1601 return NO_ERROR; 1602 } 1603 case 1005:{ // force transaction 1604 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1605 return NO_ERROR; 1606 } 1607 case 1006:{ // enable/disable GraphicLog 1608 int enabled = data.readInt32(); 1609 GraphicLog::getInstance().setEnabled(enabled); 1610 return NO_ERROR; 1611 } 1612 case 1007: // set mFreezeCount 1613 mFreezeCount = data.readInt32(); 1614 mFreezeDisplayTime = 0; 1615 return NO_ERROR; 1616 case 1010: // interrogate. 1617 reply->writeInt32(0); 1618 reply->writeInt32(0); 1619 reply->writeInt32(mDebugRegion); 1620 reply->writeInt32(mDebugBackground); 1621 return NO_ERROR; 1622 case 1013: { 1623 Mutex::Autolock _l(mStateLock); 1624 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1625 reply->writeInt32(hw.getPageFlipCount()); 1626 } 1627 return NO_ERROR; 1628 } 1629 } 1630 return err; 1631} 1632 1633// --------------------------------------------------------------------------- 1634 1635status_t SurfaceFlinger::renderScreenToTextureLocked(DisplayID dpy, 1636 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1637{ 1638 if (!GLExtensions::getInstance().haveFramebufferObject()) 1639 return INVALID_OPERATION; 1640 1641 // get screen geometry 1642 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 1643 const uint32_t hw_w = hw.getWidth(); 1644 const uint32_t hw_h = hw.getHeight(); 1645 GLfloat u = 1; 1646 GLfloat v = 1; 1647 1648 // make sure to clear all GL error flags 1649 while ( glGetError() != GL_NO_ERROR ) ; 1650 1651 // create a FBO 1652 GLuint name, tname; 1653 glGenTextures(1, &tname); 1654 glBindTexture(GL_TEXTURE_2D, tname); 1655 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1656 hw_w, hw_h, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1657 if (glGetError() != GL_NO_ERROR) { 1658 while ( glGetError() != GL_NO_ERROR ) ; 1659 GLint tw = (2 << (31 - clz(hw_w))); 1660 GLint th = (2 << (31 - clz(hw_h))); 1661 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1662 tw, th, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1663 u = GLfloat(hw_w) / tw; 1664 v = GLfloat(hw_h) / th; 1665 } 1666 glGenFramebuffersOES(1, &name); 1667 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 1668 glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, 1669 GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0); 1670 1671 // redraw the screen entirely... 1672 glClearColor(0,0,0,1); 1673 glClear(GL_COLOR_BUFFER_BIT); 1674 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1675 const size_t count = layers.size(); 1676 for (size_t i=0 ; i<count ; ++i) { 1677 const sp<LayerBase>& layer(layers[i]); 1678 layer->drawForSreenShot(); 1679 } 1680 1681 // back to main framebuffer 1682 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1683 glDisable(GL_SCISSOR_TEST); 1684 glDeleteFramebuffersOES(1, &name); 1685 1686 *textureName = tname; 1687 *uOut = u; 1688 *vOut = v; 1689 return NO_ERROR; 1690} 1691 1692// --------------------------------------------------------------------------- 1693 1694status_t SurfaceFlinger::electronBeamOffAnimationImplLocked() 1695{ 1696 status_t result = PERMISSION_DENIED; 1697 1698 if (!GLExtensions::getInstance().haveFramebufferObject()) 1699 return INVALID_OPERATION; 1700 1701 // get screen geometry 1702 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1703 const uint32_t hw_w = hw.getWidth(); 1704 const uint32_t hw_h = hw.getHeight(); 1705 const Region screenBounds(hw.bounds()); 1706 1707 GLfloat u, v; 1708 GLuint tname; 1709 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1710 if (result != NO_ERROR) { 1711 return result; 1712 } 1713 1714 GLfloat vtx[8]; 1715 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1716 glEnable(GL_TEXTURE_2D); 1717 glBindTexture(GL_TEXTURE_2D, tname); 1718 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1719 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1720 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1721 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1722 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1723 glVertexPointer(2, GL_FLOAT, 0, vtx); 1724 1725 class s_curve_interpolator { 1726 const float nbFrames, s, v; 1727 public: 1728 s_curve_interpolator(int nbFrames, float s) 1729 : nbFrames(1.0f / (nbFrames-1)), s(s), 1730 v(1.0f + expf(-s + 0.5f*s)) { 1731 } 1732 float operator()(int f) { 1733 const float x = f * nbFrames; 1734 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1735 } 1736 }; 1737 1738 class v_stretch { 1739 const GLfloat hw_w, hw_h; 1740 public: 1741 v_stretch(uint32_t hw_w, uint32_t hw_h) 1742 : hw_w(hw_w), hw_h(hw_h) { 1743 } 1744 void operator()(GLfloat* vtx, float v) { 1745 const GLfloat w = hw_w + (hw_w * v); 1746 const GLfloat h = hw_h - (hw_h * v); 1747 const GLfloat x = (hw_w - w) * 0.5f; 1748 const GLfloat y = (hw_h - h) * 0.5f; 1749 vtx[0] = x; vtx[1] = y; 1750 vtx[2] = x; vtx[3] = y + h; 1751 vtx[4] = x + w; vtx[5] = y + h; 1752 vtx[6] = x + w; vtx[7] = y; 1753 } 1754 }; 1755 1756 class h_stretch { 1757 const GLfloat hw_w, hw_h; 1758 public: 1759 h_stretch(uint32_t hw_w, uint32_t hw_h) 1760 : hw_w(hw_w), hw_h(hw_h) { 1761 } 1762 void operator()(GLfloat* vtx, float v) { 1763 const GLfloat w = hw_w - (hw_w * v); 1764 const GLfloat h = 1.0f; 1765 const GLfloat x = (hw_w - w) * 0.5f; 1766 const GLfloat y = (hw_h - h) * 0.5f; 1767 vtx[0] = x; vtx[1] = y; 1768 vtx[2] = x; vtx[3] = y + h; 1769 vtx[4] = x + w; vtx[5] = y + h; 1770 vtx[6] = x + w; vtx[7] = y; 1771 } 1772 }; 1773 1774 // the full animation is 24 frames 1775 const int nbFrames = 12; 1776 s_curve_interpolator itr(nbFrames, 7.5f); 1777 s_curve_interpolator itg(nbFrames, 8.0f); 1778 s_curve_interpolator itb(nbFrames, 8.5f); 1779 1780 v_stretch vverts(hw_w, hw_h); 1781 glEnable(GL_BLEND); 1782 glBlendFunc(GL_ONE, GL_ONE); 1783 for (int i=0 ; i<nbFrames ; i++) { 1784 float x, y, w, h; 1785 const float vr = itr(i); 1786 const float vg = itg(i); 1787 const float vb = itb(i); 1788 1789 // clear screen 1790 glColorMask(1,1,1,1); 1791 glClear(GL_COLOR_BUFFER_BIT); 1792 glEnable(GL_TEXTURE_2D); 1793 1794 // draw the red plane 1795 vverts(vtx, vr); 1796 glColorMask(1,0,0,1); 1797 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1798 1799 // draw the green plane 1800 vverts(vtx, vg); 1801 glColorMask(0,1,0,1); 1802 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1803 1804 // draw the blue plane 1805 vverts(vtx, vb); 1806 glColorMask(0,0,1,1); 1807 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1808 1809 // draw the white highlight (we use the last vertices) 1810 glDisable(GL_TEXTURE_2D); 1811 glColorMask(1,1,1,1); 1812 glColor4f(vg, vg, vg, 1); 1813 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1814 hw.flip(screenBounds); 1815 } 1816 1817 h_stretch hverts(hw_w, hw_h); 1818 glDisable(GL_BLEND); 1819 glDisable(GL_TEXTURE_2D); 1820 glColorMask(1,1,1,1); 1821 for (int i=0 ; i<nbFrames ; i++) { 1822 const float v = itg(i); 1823 hverts(vtx, v); 1824 glClear(GL_COLOR_BUFFER_BIT); 1825 glColor4f(1-v, 1-v, 1-v, 1); 1826 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1827 hw.flip(screenBounds); 1828 } 1829 1830 glColorMask(1,1,1,1); 1831 glEnable(GL_SCISSOR_TEST); 1832 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1833 glDeleteTextures(1, &tname); 1834 return NO_ERROR; 1835} 1836 1837status_t SurfaceFlinger::electronBeamOnAnimationImplLocked() 1838{ 1839 status_t result = PERMISSION_DENIED; 1840 1841 if (!GLExtensions::getInstance().haveFramebufferObject()) 1842 return INVALID_OPERATION; 1843 1844 1845 // get screen geometry 1846 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1847 const uint32_t hw_w = hw.getWidth(); 1848 const uint32_t hw_h = hw.getHeight(); 1849 const Region screenBounds(hw.bounds()); 1850 1851 GLfloat u, v; 1852 GLuint tname; 1853 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1854 if (result != NO_ERROR) { 1855 return result; 1856 } 1857 1858 // back to main framebuffer 1859 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1860 glDisable(GL_SCISSOR_TEST); 1861 1862 GLfloat vtx[8]; 1863 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1864 glEnable(GL_TEXTURE_2D); 1865 glBindTexture(GL_TEXTURE_2D, tname); 1866 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 1867 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1868 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1869 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1870 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1871 glVertexPointer(2, GL_FLOAT, 0, vtx); 1872 1873 class s_curve_interpolator { 1874 const float nbFrames, s, v; 1875 public: 1876 s_curve_interpolator(int nbFrames, float s) 1877 : nbFrames(1.0f / (nbFrames-1)), s(s), 1878 v(1.0f + expf(-s + 0.5f*s)) { 1879 } 1880 float operator()(int f) { 1881 const float x = f * nbFrames; 1882 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1883 } 1884 }; 1885 1886 class v_stretch { 1887 const GLfloat hw_w, hw_h; 1888 public: 1889 v_stretch(uint32_t hw_w, uint32_t hw_h) 1890 : hw_w(hw_w), hw_h(hw_h) { 1891 } 1892 void operator()(GLfloat* vtx, float v) { 1893 const GLfloat w = hw_w + (hw_w * v); 1894 const GLfloat h = hw_h - (hw_h * v); 1895 const GLfloat x = (hw_w - w) * 0.5f; 1896 const GLfloat y = (hw_h - h) * 0.5f; 1897 vtx[0] = x; vtx[1] = y; 1898 vtx[2] = x; vtx[3] = y + h; 1899 vtx[4] = x + w; vtx[5] = y + h; 1900 vtx[6] = x + w; vtx[7] = y; 1901 } 1902 }; 1903 1904 class h_stretch { 1905 const GLfloat hw_w, hw_h; 1906 public: 1907 h_stretch(uint32_t hw_w, uint32_t hw_h) 1908 : hw_w(hw_w), hw_h(hw_h) { 1909 } 1910 void operator()(GLfloat* vtx, float v) { 1911 const GLfloat w = hw_w - (hw_w * v); 1912 const GLfloat h = 1.0f; 1913 const GLfloat x = (hw_w - w) * 0.5f; 1914 const GLfloat y = (hw_h - h) * 0.5f; 1915 vtx[0] = x; vtx[1] = y; 1916 vtx[2] = x; vtx[3] = y + h; 1917 vtx[4] = x + w; vtx[5] = y + h; 1918 vtx[6] = x + w; vtx[7] = y; 1919 } 1920 }; 1921 1922 // the full animation is 12 frames 1923 int nbFrames = 8; 1924 s_curve_interpolator itr(nbFrames, 7.5f); 1925 s_curve_interpolator itg(nbFrames, 8.0f); 1926 s_curve_interpolator itb(nbFrames, 8.5f); 1927 1928 h_stretch hverts(hw_w, hw_h); 1929 glDisable(GL_BLEND); 1930 glDisable(GL_TEXTURE_2D); 1931 glColorMask(1,1,1,1); 1932 for (int i=nbFrames-1 ; i>=0 ; i--) { 1933 const float v = itg(i); 1934 hverts(vtx, v); 1935 glClear(GL_COLOR_BUFFER_BIT); 1936 glColor4f(1-v, 1-v, 1-v, 1); 1937 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1938 hw.flip(screenBounds); 1939 } 1940 1941 nbFrames = 4; 1942 v_stretch vverts(hw_w, hw_h); 1943 glEnable(GL_BLEND); 1944 glBlendFunc(GL_ONE, GL_ONE); 1945 for (int i=nbFrames-1 ; i>=0 ; i--) { 1946 float x, y, w, h; 1947 const float vr = itr(i); 1948 const float vg = itg(i); 1949 const float vb = itb(i); 1950 1951 // clear screen 1952 glColorMask(1,1,1,1); 1953 glClear(GL_COLOR_BUFFER_BIT); 1954 glEnable(GL_TEXTURE_2D); 1955 1956 // draw the red plane 1957 vverts(vtx, vr); 1958 glColorMask(1,0,0,1); 1959 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1960 1961 // draw the green plane 1962 vverts(vtx, vg); 1963 glColorMask(0,1,0,1); 1964 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1965 1966 // draw the blue plane 1967 vverts(vtx, vb); 1968 glColorMask(0,0,1,1); 1969 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1970 1971 hw.flip(screenBounds); 1972 } 1973 1974 glColorMask(1,1,1,1); 1975 glEnable(GL_SCISSOR_TEST); 1976 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1977 glDeleteTextures(1, &tname); 1978 1979 return NO_ERROR; 1980} 1981 1982// --------------------------------------------------------------------------- 1983 1984status_t SurfaceFlinger::turnElectronBeamOffImplLocked(int32_t mode) 1985{ 1986 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 1987 if (!hw.canDraw()) { 1988 // we're already off 1989 return NO_ERROR; 1990 } 1991 if (mode & ISurfaceComposer::eElectronBeamAnimationOff) { 1992 electronBeamOffAnimationImplLocked(); 1993 } 1994 1995 // always clear the whole screen at the end of the animation 1996 glClearColor(0,0,0,1); 1997 glDisable(GL_SCISSOR_TEST); 1998 glClear(GL_COLOR_BUFFER_BIT); 1999 glEnable(GL_SCISSOR_TEST); 2000 hw.flip( Region(hw.bounds()) ); 2001 2002 hw.setCanDraw(false); 2003 return NO_ERROR; 2004} 2005 2006status_t SurfaceFlinger::turnElectronBeamOff(int32_t mode) 2007{ 2008 class MessageTurnElectronBeamOff : public MessageBase { 2009 SurfaceFlinger* flinger; 2010 int32_t mode; 2011 status_t result; 2012 public: 2013 MessageTurnElectronBeamOff(SurfaceFlinger* flinger, int32_t mode) 2014 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2015 } 2016 status_t getResult() const { 2017 return result; 2018 } 2019 virtual bool handler() { 2020 Mutex::Autolock _l(flinger->mStateLock); 2021 result = flinger->turnElectronBeamOffImplLocked(mode); 2022 return true; 2023 } 2024 }; 2025 2026 sp<MessageBase> msg = new MessageTurnElectronBeamOff(this, mode); 2027 status_t res = postMessageSync(msg); 2028 if (res == NO_ERROR) { 2029 res = static_cast<MessageTurnElectronBeamOff*>( msg.get() )->getResult(); 2030 2031 // work-around: when the power-manager calls us we activate the 2032 // animation. eventually, the "on" animation will be called 2033 // by the power-manager itself 2034 mElectronBeamAnimationMode = mode; 2035 } 2036 return res; 2037} 2038 2039// --------------------------------------------------------------------------- 2040 2041status_t SurfaceFlinger::turnElectronBeamOnImplLocked(int32_t mode) 2042{ 2043 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2044 if (hw.canDraw()) { 2045 // we're already on 2046 return NO_ERROR; 2047 } 2048 if (mode & ISurfaceComposer::eElectronBeamAnimationOn) { 2049 electronBeamOnAnimationImplLocked(); 2050 } 2051 hw.setCanDraw(true); 2052 2053 // make sure to redraw the whole screen when the animation is done 2054 mDirtyRegion.set(hw.bounds()); 2055 signalEvent(); 2056 2057 return NO_ERROR; 2058} 2059 2060status_t SurfaceFlinger::turnElectronBeamOn(int32_t mode) 2061{ 2062 class MessageTurnElectronBeamOn : public MessageBase { 2063 SurfaceFlinger* flinger; 2064 int32_t mode; 2065 status_t result; 2066 public: 2067 MessageTurnElectronBeamOn(SurfaceFlinger* flinger, int32_t mode) 2068 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2069 } 2070 status_t getResult() const { 2071 return result; 2072 } 2073 virtual bool handler() { 2074 Mutex::Autolock _l(flinger->mStateLock); 2075 result = flinger->turnElectronBeamOnImplLocked(mode); 2076 return true; 2077 } 2078 }; 2079 2080 postMessageAsync( new MessageTurnElectronBeamOn(this, mode) ); 2081 return NO_ERROR; 2082} 2083 2084// --------------------------------------------------------------------------- 2085 2086status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy, 2087 sp<IMemoryHeap>* heap, 2088 uint32_t* w, uint32_t* h, PixelFormat* f, 2089 uint32_t sw, uint32_t sh, 2090 uint32_t minLayerZ, uint32_t maxLayerZ) 2091{ 2092 status_t result = PERMISSION_DENIED; 2093 2094 // only one display supported for now 2095 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2096 return BAD_VALUE; 2097 2098 if (!GLExtensions::getInstance().haveFramebufferObject()) 2099 return INVALID_OPERATION; 2100 2101 // get screen geometry 2102 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 2103 const uint32_t hw_w = hw.getWidth(); 2104 const uint32_t hw_h = hw.getHeight(); 2105 2106 if ((sw > hw_w) || (sh > hw_h)) 2107 return BAD_VALUE; 2108 2109 sw = (!sw) ? hw_w : sw; 2110 sh = (!sh) ? hw_h : sh; 2111 const size_t size = sw * sh * 4; 2112 2113 // make sure to clear all GL error flags 2114 while ( glGetError() != GL_NO_ERROR ) ; 2115 2116 // create a FBO 2117 GLuint name, tname; 2118 glGenRenderbuffersOES(1, &tname); 2119 glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname); 2120 glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh); 2121 glGenFramebuffersOES(1, &name); 2122 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 2123 glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, 2124 GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname); 2125 2126 GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES); 2127 if (status == GL_FRAMEBUFFER_COMPLETE_OES) { 2128 2129 // invert everything, b/c glReadPixel() below will invert the FB 2130 glViewport(0, 0, sw, sh); 2131 glScissor(0, 0, sw, sh); 2132 glMatrixMode(GL_PROJECTION); 2133 glPushMatrix(); 2134 glLoadIdentity(); 2135 glOrthof(0, hw_w, 0, hw_h, 0, 1); 2136 glMatrixMode(GL_MODELVIEW); 2137 2138 // redraw the screen entirely... 2139 glClearColor(0,0,0,1); 2140 glClear(GL_COLOR_BUFFER_BIT); 2141 2142 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 2143 const size_t count = layers.size(); 2144 for (size_t i=0 ; i<count ; ++i) { 2145 const sp<LayerBase>& layer(layers[i]); 2146 const uint32_t z = layer->drawingState().z; 2147 if (z >= minLayerZ && z <= maxLayerZ) { 2148 layer->drawForSreenShot(); 2149 } 2150 } 2151 2152 // XXX: this is needed on tegra 2153 glScissor(0, 0, sw, sh); 2154 2155 // check for errors and return screen capture 2156 if (glGetError() != GL_NO_ERROR) { 2157 // error while rendering 2158 result = INVALID_OPERATION; 2159 } else { 2160 // allocate shared memory large enough to hold the 2161 // screen capture 2162 sp<MemoryHeapBase> base( 2163 new MemoryHeapBase(size, 0, "screen-capture") ); 2164 void* const ptr = base->getBase(); 2165 if (ptr) { 2166 // capture the screen with glReadPixels() 2167 glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr); 2168 if (glGetError() == GL_NO_ERROR) { 2169 *heap = base; 2170 *w = sw; 2171 *h = sh; 2172 *f = PIXEL_FORMAT_RGBA_8888; 2173 result = NO_ERROR; 2174 } 2175 } else { 2176 result = NO_MEMORY; 2177 } 2178 } 2179 glEnable(GL_SCISSOR_TEST); 2180 glViewport(0, 0, hw_w, hw_h); 2181 glMatrixMode(GL_PROJECTION); 2182 glPopMatrix(); 2183 glMatrixMode(GL_MODELVIEW); 2184 2185 2186 } else { 2187 result = BAD_VALUE; 2188 } 2189 2190 // release FBO resources 2191 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 2192 glDeleteRenderbuffersOES(1, &tname); 2193 glDeleteFramebuffersOES(1, &name); 2194 2195 hw.compositionComplete(); 2196 2197 return result; 2198} 2199 2200 2201status_t SurfaceFlinger::captureScreen(DisplayID dpy, 2202 sp<IMemoryHeap>* heap, 2203 uint32_t* width, uint32_t* height, PixelFormat* format, 2204 uint32_t sw, uint32_t sh, 2205 uint32_t minLayerZ, uint32_t maxLayerZ) 2206{ 2207 // only one display supported for now 2208 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2209 return BAD_VALUE; 2210 2211 if (!GLExtensions::getInstance().haveFramebufferObject()) 2212 return INVALID_OPERATION; 2213 2214 class MessageCaptureScreen : public MessageBase { 2215 SurfaceFlinger* flinger; 2216 DisplayID dpy; 2217 sp<IMemoryHeap>* heap; 2218 uint32_t* w; 2219 uint32_t* h; 2220 PixelFormat* f; 2221 uint32_t sw; 2222 uint32_t sh; 2223 uint32_t minLayerZ; 2224 uint32_t maxLayerZ; 2225 status_t result; 2226 public: 2227 MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy, 2228 sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f, 2229 uint32_t sw, uint32_t sh, 2230 uint32_t minLayerZ, uint32_t maxLayerZ) 2231 : flinger(flinger), dpy(dpy), 2232 heap(heap), w(w), h(h), f(f), sw(sw), sh(sh), 2233 minLayerZ(minLayerZ), maxLayerZ(maxLayerZ), 2234 result(PERMISSION_DENIED) 2235 { 2236 } 2237 status_t getResult() const { 2238 return result; 2239 } 2240 virtual bool handler() { 2241 Mutex::Autolock _l(flinger->mStateLock); 2242 2243 // if we have secure windows, never allow the screen capture 2244 if (flinger->mSecureFrameBuffer) 2245 return true; 2246 2247 result = flinger->captureScreenImplLocked(dpy, 2248 heap, w, h, f, sw, sh, minLayerZ, maxLayerZ); 2249 2250 return true; 2251 } 2252 }; 2253 2254 sp<MessageBase> msg = new MessageCaptureScreen(this, 2255 dpy, heap, width, height, format, sw, sh, minLayerZ, maxLayerZ); 2256 status_t res = postMessageSync(msg); 2257 if (res == NO_ERROR) { 2258 res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult(); 2259 } 2260 return res; 2261} 2262 2263// --------------------------------------------------------------------------- 2264 2265sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const 2266{ 2267 sp<Layer> result; 2268 Mutex::Autolock _l(mStateLock); 2269 result = mLayerMap.valueFor( sur->asBinder() ).promote(); 2270 return result; 2271} 2272 2273// --------------------------------------------------------------------------- 2274 2275sp<GraphicBuffer> SurfaceFlinger::createGraphicBuffer(uint32_t w, uint32_t h, 2276 PixelFormat format, uint32_t usage) const { 2277 // XXX: HACK HACK HACK!!! This should NOT be static, but it is to fix a 2278 // race between SurfaceFlinger unref'ing the buffer and the client ref'ing 2279 // it. 2280 static sp<GraphicBuffer> graphicBuffer(new GraphicBuffer(w, h, format, usage)); 2281 status_t err = graphicBuffer->initCheck(); 2282 if (err != 0) { 2283 LOGE("createGraphicBuffer: init check failed: %d", err); 2284 return 0; 2285 } else if (graphicBuffer->handle == 0) { 2286 LOGE("createGraphicBuffer: unable to create GraphicBuffer"); 2287 return 0; 2288 } 2289 return graphicBuffer; 2290} 2291 2292// --------------------------------------------------------------------------- 2293 2294Client::Client(const sp<SurfaceFlinger>& flinger) 2295 : mFlinger(flinger), mNameGenerator(1) 2296{ 2297} 2298 2299Client::~Client() 2300{ 2301 const size_t count = mLayers.size(); 2302 for (size_t i=0 ; i<count ; i++) { 2303 sp<LayerBaseClient> layer(mLayers.valueAt(i).promote()); 2304 if (layer != 0) { 2305 mFlinger->removeLayer(layer); 2306 } 2307 } 2308} 2309 2310status_t Client::initCheck() const { 2311 return NO_ERROR; 2312} 2313 2314ssize_t Client::attachLayer(const sp<LayerBaseClient>& layer) 2315{ 2316 int32_t name = android_atomic_inc(&mNameGenerator); 2317 mLayers.add(name, layer); 2318 return name; 2319} 2320 2321void Client::detachLayer(const LayerBaseClient* layer) 2322{ 2323 // we do a linear search here, because this doesn't happen often 2324 const size_t count = mLayers.size(); 2325 for (size_t i=0 ; i<count ; i++) { 2326 if (mLayers.valueAt(i) == layer) { 2327 mLayers.removeItemsAt(i, 1); 2328 break; 2329 } 2330 } 2331} 2332sp<LayerBaseClient> Client::getLayerUser(int32_t i) const { 2333 sp<LayerBaseClient> lbc; 2334 const wp<LayerBaseClient>& layer(mLayers.valueFor(i)); 2335 if (layer != 0) { 2336 lbc = layer.promote(); 2337 LOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i)); 2338 } 2339 return lbc; 2340} 2341 2342sp<IMemoryHeap> Client::getControlBlock() const { 2343 return 0; 2344} 2345ssize_t Client::getTokenForSurface(const sp<ISurface>& sur) const { 2346 return -1; 2347} 2348sp<ISurface> Client::createSurface( 2349 ISurfaceComposerClient::surface_data_t* params, int pid, 2350 const String8& name, 2351 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2352 uint32_t flags) 2353{ 2354 return mFlinger->createSurface(this, pid, name, params, 2355 display, w, h, format, flags); 2356} 2357status_t Client::destroySurface(SurfaceID sid) { 2358 return mFlinger->removeSurface(this, sid); 2359} 2360status_t Client::setState(int32_t count, const layer_state_t* states) { 2361 return mFlinger->setClientState(this, count, states); 2362} 2363 2364// --------------------------------------------------------------------------- 2365 2366UserClient::UserClient(const sp<SurfaceFlinger>& flinger) 2367 : ctrlblk(0), mBitmap(0), mFlinger(flinger) 2368{ 2369 const int pgsize = getpagesize(); 2370 const int cblksize = ((sizeof(SharedClient)+(pgsize-1))&~(pgsize-1)); 2371 2372 mCblkHeap = new MemoryHeapBase(cblksize, 0, 2373 "SurfaceFlinger Client control-block"); 2374 2375 ctrlblk = static_cast<SharedClient *>(mCblkHeap->getBase()); 2376 if (ctrlblk) { // construct the shared structure in-place. 2377 new(ctrlblk) SharedClient; 2378 } 2379} 2380 2381UserClient::~UserClient() 2382{ 2383 if (ctrlblk) { 2384 ctrlblk->~SharedClient(); // destroy our shared-structure. 2385 } 2386 2387 /* 2388 * When a UserClient dies, it's unclear what to do exactly. 2389 * We could go ahead and destroy all surfaces linked to that client 2390 * however, it wouldn't be fair to the main Client 2391 * (usually the the window-manager), which might want to re-target 2392 * the layer to another UserClient. 2393 * I think the best is to do nothing, or not much; in most cases the 2394 * WM itself will go ahead and clean things up when it detects a client of 2395 * his has died. 2396 * The remaining question is what to display? currently we keep 2397 * just keep the current buffer. 2398 */ 2399} 2400 2401status_t UserClient::initCheck() const { 2402 return ctrlblk == 0 ? NO_INIT : NO_ERROR; 2403} 2404 2405void UserClient::detachLayer(const Layer* layer) 2406{ 2407 int32_t name = layer->getToken(); 2408 if (name >= 0) { 2409 int32_t mask = 1LU<<name; 2410 if ((android_atomic_and(~mask, &mBitmap) & mask) == 0) { 2411 LOGW("token %d wasn't marked as used %08x", name, int(mBitmap)); 2412 } 2413 } 2414} 2415 2416sp<IMemoryHeap> UserClient::getControlBlock() const { 2417 return mCblkHeap; 2418} 2419 2420ssize_t UserClient::getTokenForSurface(const sp<ISurface>& sur) const 2421{ 2422 int32_t name = NAME_NOT_FOUND; 2423 sp<Layer> layer(mFlinger->getLayer(sur)); 2424 if (layer == 0) { 2425 return name; 2426 } 2427 2428 // if this layer already has a token, just return it 2429 name = layer->getToken(); 2430 if ((name >= 0) && (layer->getClient() == this)) { 2431 return name; 2432 } 2433 2434 name = 0; 2435 do { 2436 int32_t mask = 1LU<<name; 2437 if ((android_atomic_or(mask, &mBitmap) & mask) == 0) { 2438 // we found and locked that name 2439 status_t err = layer->setToken( 2440 const_cast<UserClient*>(this), ctrlblk, name); 2441 if (err != NO_ERROR) { 2442 // free the name 2443 android_atomic_and(~mask, &mBitmap); 2444 name = err; 2445 } 2446 break; 2447 } 2448 if (++name > 31) 2449 name = NO_MEMORY; 2450 } while(name >= 0); 2451 2452 //LOGD("getTokenForSurface(%p) => %d (client=%p, bitmap=%08lx)", 2453 // sur->asBinder().get(), name, this, mBitmap); 2454 return name; 2455} 2456 2457sp<ISurface> UserClient::createSurface( 2458 ISurfaceComposerClient::surface_data_t* params, int pid, 2459 const String8& name, 2460 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2461 uint32_t flags) { 2462 return 0; 2463} 2464status_t UserClient::destroySurface(SurfaceID sid) { 2465 return INVALID_OPERATION; 2466} 2467status_t UserClient::setState(int32_t count, const layer_state_t* states) { 2468 return INVALID_OPERATION; 2469} 2470 2471// --------------------------------------------------------------------------- 2472 2473GraphicPlane::GraphicPlane() 2474 : mHw(0) 2475{ 2476} 2477 2478GraphicPlane::~GraphicPlane() { 2479 delete mHw; 2480} 2481 2482bool GraphicPlane::initialized() const { 2483 return mHw ? true : false; 2484} 2485 2486int GraphicPlane::getWidth() const { 2487 return mWidth; 2488} 2489 2490int GraphicPlane::getHeight() const { 2491 return mHeight; 2492} 2493 2494void GraphicPlane::setDisplayHardware(DisplayHardware *hw) 2495{ 2496 mHw = hw; 2497 2498 // initialize the display orientation transform. 2499 // it's a constant that should come from the display driver. 2500 int displayOrientation = ISurfaceComposer::eOrientationDefault; 2501 char property[PROPERTY_VALUE_MAX]; 2502 if (property_get("ro.sf.hwrotation", property, NULL) > 0) { 2503 //displayOrientation 2504 switch (atoi(property)) { 2505 case 90: 2506 displayOrientation = ISurfaceComposer::eOrientation90; 2507 break; 2508 case 270: 2509 displayOrientation = ISurfaceComposer::eOrientation270; 2510 break; 2511 } 2512 } 2513 2514 const float w = hw->getWidth(); 2515 const float h = hw->getHeight(); 2516 GraphicPlane::orientationToTransfrom(displayOrientation, w, h, 2517 &mDisplayTransform); 2518 if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) { 2519 mDisplayWidth = h; 2520 mDisplayHeight = w; 2521 } else { 2522 mDisplayWidth = w; 2523 mDisplayHeight = h; 2524 } 2525 2526 setOrientation(ISurfaceComposer::eOrientationDefault); 2527} 2528 2529status_t GraphicPlane::orientationToTransfrom( 2530 int orientation, int w, int h, Transform* tr) 2531{ 2532 uint32_t flags = 0; 2533 switch (orientation) { 2534 case ISurfaceComposer::eOrientationDefault: 2535 flags = Transform::ROT_0; 2536 break; 2537 case ISurfaceComposer::eOrientation90: 2538 flags = Transform::ROT_90; 2539 break; 2540 case ISurfaceComposer::eOrientation180: 2541 flags = Transform::ROT_180; 2542 break; 2543 case ISurfaceComposer::eOrientation270: 2544 flags = Transform::ROT_270; 2545 break; 2546 default: 2547 return BAD_VALUE; 2548 } 2549 tr->set(flags, w, h); 2550 return NO_ERROR; 2551} 2552 2553status_t GraphicPlane::setOrientation(int orientation) 2554{ 2555 // If the rotation can be handled in hardware, this is where 2556 // the magic should happen. 2557 2558 const DisplayHardware& hw(displayHardware()); 2559 const float w = mDisplayWidth; 2560 const float h = mDisplayHeight; 2561 mWidth = int(w); 2562 mHeight = int(h); 2563 2564 Transform orientationTransform; 2565 GraphicPlane::orientationToTransfrom(orientation, w, h, 2566 &orientationTransform); 2567 if (orientation & ISurfaceComposer::eOrientationSwapMask) { 2568 mWidth = int(h); 2569 mHeight = int(w); 2570 } 2571 2572 mOrientation = orientation; 2573 mGlobalTransform = mDisplayTransform * orientationTransform; 2574 return NO_ERROR; 2575} 2576 2577const DisplayHardware& GraphicPlane::displayHardware() const { 2578 return *mHw; 2579} 2580 2581DisplayHardware& GraphicPlane::editDisplayHardware() { 2582 return *mHw; 2583} 2584 2585const Transform& GraphicPlane::transform() const { 2586 return mGlobalTransform; 2587} 2588 2589EGLDisplay GraphicPlane::getEGLDisplay() const { 2590 return mHw->getEGLDisplay(); 2591} 2592 2593// --------------------------------------------------------------------------- 2594 2595}; // namespace android 2596