SurfaceFlinger.cpp revision 2bd1d95efecffad447afd682ffe605bbf8c79d62
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_REPAINT_DONE, index); 398 } else { 399 // pretend we did the post 400 hw.compositionComplete(); 401 usleep(16667); // 60 fps period 402 } 403 return true; 404} 405 406void SurfaceFlinger::postFramebuffer() 407{ 408 if (!mInvalidRegion.isEmpty()) { 409 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 410 const nsecs_t now = systemTime(); 411 mDebugInSwapBuffers = now; 412 hw.flip(mInvalidRegion); 413 mLastSwapBufferTime = systemTime() - now; 414 mDebugInSwapBuffers = 0; 415 mInvalidRegion.clear(); 416 } 417} 418 419void SurfaceFlinger::handleConsoleEvents() 420{ 421 // something to do with the console 422 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 423 424 int what = android_atomic_and(0, &mConsoleSignals); 425 if (what & eConsoleAcquired) { 426 hw.acquireScreen(); 427 // this is a temporary work-around, eventually this should be called 428 // by the power-manager 429 SurfaceFlinger::turnElectronBeamOn(mElectronBeamAnimationMode); 430 } 431 432 if (mDeferReleaseConsole && hw.isScreenAcquired()) { 433 // We got the release signal before the acquire signal 434 mDeferReleaseConsole = false; 435 hw.releaseScreen(); 436 } 437 438 if (what & eConsoleReleased) { 439 if (hw.isScreenAcquired()) { 440 hw.releaseScreen(); 441 } else { 442 mDeferReleaseConsole = true; 443 } 444 } 445 446 mDirtyRegion.set(hw.bounds()); 447} 448 449void SurfaceFlinger::handleTransaction(uint32_t transactionFlags) 450{ 451 Vector< sp<LayerBase> > ditchedLayers; 452 453 /* 454 * Perform and commit the transaction 455 */ 456 457 { // scope for the lock 458 Mutex::Autolock _l(mStateLock); 459 const nsecs_t now = systemTime(); 460 mDebugInTransaction = now; 461 handleTransactionLocked(transactionFlags, ditchedLayers); 462 mLastTransactionTime = systemTime() - now; 463 mDebugInTransaction = 0; 464 invalidateHwcGeometry(); 465 // here the transaction has been committed 466 } 467 468 /* 469 * Clean-up all layers that went away 470 * (do this without the lock held) 471 */ 472 473 const size_t count = ditchedLayers.size(); 474 for (size_t i=0 ; i<count ; i++) { 475 if (ditchedLayers[i] != 0) { 476 //LOGD("ditching layer %p", ditchedLayers[i].get()); 477 ditchedLayers[i]->ditch(); 478 } 479 } 480} 481 482void SurfaceFlinger::handleTransactionLocked( 483 uint32_t transactionFlags, Vector< sp<LayerBase> >& ditchedLayers) 484{ 485 const LayerVector& currentLayers(mCurrentState.layersSortedByZ); 486 const size_t count = currentLayers.size(); 487 488 /* 489 * Traversal of the children 490 * (perform the transaction for each of them if needed) 491 */ 492 493 const bool layersNeedTransaction = transactionFlags & eTraversalNeeded; 494 if (layersNeedTransaction) { 495 for (size_t i=0 ; i<count ; i++) { 496 const sp<LayerBase>& layer = currentLayers[i]; 497 uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded); 498 if (!trFlags) continue; 499 500 const uint32_t flags = layer->doTransaction(0); 501 if (flags & Layer::eVisibleRegion) 502 mVisibleRegionsDirty = true; 503 } 504 } 505 506 /* 507 * Perform our own transaction if needed 508 */ 509 510 if (transactionFlags & eTransactionNeeded) { 511 if (mCurrentState.orientation != mDrawingState.orientation) { 512 // the orientation has changed, recompute all visible regions 513 // and invalidate everything. 514 515 const int dpy = 0; 516 const int orientation = mCurrentState.orientation; 517 const uint32_t type = mCurrentState.orientationType; 518 GraphicPlane& plane(graphicPlane(dpy)); 519 plane.setOrientation(orientation); 520 521 // update the shared control block 522 const DisplayHardware& hw(plane.displayHardware()); 523 volatile display_cblk_t* dcblk = mServerCblk->displays + dpy; 524 dcblk->orientation = orientation; 525 dcblk->w = plane.getWidth(); 526 dcblk->h = plane.getHeight(); 527 528 mVisibleRegionsDirty = true; 529 mDirtyRegion.set(hw.bounds()); 530 } 531 532 if (mCurrentState.freezeDisplay != mDrawingState.freezeDisplay) { 533 // freezing or unfreezing the display -> trigger animation if needed 534 mFreezeDisplay = mCurrentState.freezeDisplay; 535 if (mFreezeDisplay) 536 mFreezeDisplayTime = 0; 537 } 538 539 if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) { 540 // layers have been added 541 mVisibleRegionsDirty = true; 542 } 543 544 // some layers might have been removed, so 545 // we need to update the regions they're exposing. 546 if (mLayersRemoved) { 547 mLayersRemoved = false; 548 mVisibleRegionsDirty = true; 549 const LayerVector& previousLayers(mDrawingState.layersSortedByZ); 550 const size_t count = previousLayers.size(); 551 for (size_t i=0 ; i<count ; i++) { 552 const sp<LayerBase>& layer(previousLayers[i]); 553 if (currentLayers.indexOf( layer ) < 0) { 554 // this layer is not visible anymore 555 ditchedLayers.add(layer); 556 mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen); 557 } 558 } 559 } 560 } 561 562 commitTransaction(); 563} 564 565sp<FreezeLock> SurfaceFlinger::getFreezeLock() const 566{ 567 return new FreezeLock(const_cast<SurfaceFlinger *>(this)); 568} 569 570void SurfaceFlinger::computeVisibleRegions( 571 LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion) 572{ 573 const GraphicPlane& plane(graphicPlane(0)); 574 const Transform& planeTransform(plane.transform()); 575 const DisplayHardware& hw(plane.displayHardware()); 576 const Region screenRegion(hw.bounds()); 577 578 Region aboveOpaqueLayers; 579 Region aboveCoveredLayers; 580 Region dirty; 581 582 bool secureFrameBuffer = false; 583 584 size_t i = currentLayers.size(); 585 while (i--) { 586 const sp<LayerBase>& layer = currentLayers[i]; 587 layer->validateVisibility(planeTransform); 588 589 // start with the whole surface at its current location 590 const Layer::State& s(layer->drawingState()); 591 592 /* 593 * opaqueRegion: area of a surface that is fully opaque. 594 */ 595 Region opaqueRegion; 596 597 /* 598 * visibleRegion: area of a surface that is visible on screen 599 * and not fully transparent. This is essentially the layer's 600 * footprint minus the opaque regions above it. 601 * Areas covered by a translucent surface are considered visible. 602 */ 603 Region visibleRegion; 604 605 /* 606 * coveredRegion: area of a surface that is covered by all 607 * visible regions above it (which includes the translucent areas). 608 */ 609 Region coveredRegion; 610 611 612 // handle hidden surfaces by setting the visible region to empty 613 if (LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) { 614 const bool translucent = layer->needsBlending(); 615 const Rect bounds(layer->visibleBounds()); 616 visibleRegion.set(bounds); 617 visibleRegion.andSelf(screenRegion); 618 if (!visibleRegion.isEmpty()) { 619 // Remove the transparent area from the visible region 620 if (translucent) { 621 visibleRegion.subtractSelf(layer->transparentRegionScreen); 622 } 623 624 // compute the opaque region 625 const int32_t layerOrientation = layer->getOrientation(); 626 if (s.alpha==255 && !translucent && 627 ((layerOrientation & Transform::ROT_INVALID) == false)) { 628 // the opaque region is the layer's footprint 629 opaqueRegion = visibleRegion; 630 } 631 } 632 } 633 634 // Clip the covered region to the visible region 635 coveredRegion = aboveCoveredLayers.intersect(visibleRegion); 636 637 // Update aboveCoveredLayers for next (lower) layer 638 aboveCoveredLayers.orSelf(visibleRegion); 639 640 // subtract the opaque region covered by the layers above us 641 visibleRegion.subtractSelf(aboveOpaqueLayers); 642 643 // compute this layer's dirty region 644 if (layer->contentDirty) { 645 // we need to invalidate the whole region 646 dirty = visibleRegion; 647 // as well, as the old visible region 648 dirty.orSelf(layer->visibleRegionScreen); 649 layer->contentDirty = false; 650 } else { 651 /* compute the exposed region: 652 * the exposed region consists of two components: 653 * 1) what's VISIBLE now and was COVERED before 654 * 2) what's EXPOSED now less what was EXPOSED before 655 * 656 * note that (1) is conservative, we start with the whole 657 * visible region but only keep what used to be covered by 658 * something -- which mean it may have been exposed. 659 * 660 * (2) handles areas that were not covered by anything but got 661 * exposed because of a resize. 662 */ 663 const Region newExposed = visibleRegion - coveredRegion; 664 const Region oldVisibleRegion = layer->visibleRegionScreen; 665 const Region oldCoveredRegion = layer->coveredRegionScreen; 666 const Region oldExposed = oldVisibleRegion - oldCoveredRegion; 667 dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed); 668 } 669 dirty.subtractSelf(aboveOpaqueLayers); 670 671 // accumulate to the screen dirty region 672 dirtyRegion.orSelf(dirty); 673 674 // Update aboveOpaqueLayers for next (lower) layer 675 aboveOpaqueLayers.orSelf(opaqueRegion); 676 677 // Store the visible region is screen space 678 layer->setVisibleRegion(visibleRegion); 679 layer->setCoveredRegion(coveredRegion); 680 681 // If a secure layer is partially visible, lock-down the screen! 682 if (layer->isSecure() && !visibleRegion.isEmpty()) { 683 secureFrameBuffer = true; 684 } 685 } 686 687 // invalidate the areas where a layer was removed 688 dirtyRegion.orSelf(mDirtyRegionRemovedLayer); 689 mDirtyRegionRemovedLayer.clear(); 690 691 mSecureFrameBuffer = secureFrameBuffer; 692 opaqueRegion = aboveOpaqueLayers; 693} 694 695 696void SurfaceFlinger::commitTransaction() 697{ 698 mDrawingState = mCurrentState; 699 mResizeTransationPending = false; 700 mTransactionCV.broadcast(); 701} 702 703void SurfaceFlinger::handlePageFlip() 704{ 705 bool visibleRegions = mVisibleRegionsDirty; 706 LayerVector& currentLayers( 707 const_cast<LayerVector&>(mDrawingState.layersSortedByZ)); 708 visibleRegions |= lockPageFlip(currentLayers); 709 710 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 711 const Region screenRegion(hw.bounds()); 712 if (visibleRegions) { 713 Region opaqueRegion; 714 computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion); 715 716 /* 717 * rebuild the visible layer list 718 */ 719 mVisibleLayersSortedByZ.clear(); 720 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 721 size_t count = currentLayers.size(); 722 mVisibleLayersSortedByZ.setCapacity(count); 723 for (size_t i=0 ; i<count ; i++) { 724 if (!currentLayers[i]->visibleRegionScreen.isEmpty()) 725 mVisibleLayersSortedByZ.add(currentLayers[i]); 726 } 727 728 mWormholeRegion = screenRegion.subtract(opaqueRegion); 729 mVisibleRegionsDirty = false; 730 invalidateHwcGeometry(); 731 } 732 733 unlockPageFlip(currentLayers); 734 mDirtyRegion.andSelf(screenRegion); 735} 736 737void SurfaceFlinger::invalidateHwcGeometry() 738{ 739 mHwWorkListDirty = true; 740} 741 742bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers) 743{ 744 bool recomputeVisibleRegions = false; 745 size_t count = currentLayers.size(); 746 sp<LayerBase> const* layers = currentLayers.array(); 747 for (size_t i=0 ; i<count ; i++) { 748 const sp<LayerBase>& layer(layers[i]); 749 layer->lockPageFlip(recomputeVisibleRegions); 750 } 751 return recomputeVisibleRegions; 752} 753 754void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers) 755{ 756 const GraphicPlane& plane(graphicPlane(0)); 757 const Transform& planeTransform(plane.transform()); 758 size_t count = currentLayers.size(); 759 sp<LayerBase> const* layers = currentLayers.array(); 760 for (size_t i=0 ; i<count ; i++) { 761 const sp<LayerBase>& layer(layers[i]); 762 layer->unlockPageFlip(planeTransform, mDirtyRegion); 763 } 764} 765 766void SurfaceFlinger::handleWorkList() 767{ 768 mHwWorkListDirty = false; 769 HWComposer& hwc(graphicPlane(0).displayHardware().getHwComposer()); 770 if (hwc.initCheck() == NO_ERROR) { 771 const Vector< sp<LayerBase> >& currentLayers(mVisibleLayersSortedByZ); 772 const size_t count = currentLayers.size(); 773 hwc.createWorkList(count); 774 hwc_layer_t* const cur(hwc.getLayers()); 775 for (size_t i=0 ; cur && i<count ; i++) { 776 currentLayers[i]->setGeometry(&cur[i]); 777 if (mDebugDisableHWC) { 778 cur[i].compositionType = HWC_FRAMEBUFFER; 779 cur[i].flags |= HWC_SKIP_LAYER; 780 } 781 } 782 } 783} 784 785void SurfaceFlinger::handleRepaint() 786{ 787 // compute the invalid region 788 mInvalidRegion.orSelf(mDirtyRegion); 789 790 if (UNLIKELY(mDebugRegion)) { 791 debugFlashRegions(); 792 } 793 794 // set the frame buffer 795 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 796 glMatrixMode(GL_MODELVIEW); 797 glLoadIdentity(); 798 799 uint32_t flags = hw.getFlags(); 800 if ((flags & DisplayHardware::SWAP_RECTANGLE) || 801 (flags & DisplayHardware::BUFFER_PRESERVED)) 802 { 803 // we can redraw only what's dirty, but since SWAP_RECTANGLE only 804 // takes a rectangle, we must make sure to update that whole 805 // rectangle in that case 806 if (flags & DisplayHardware::SWAP_RECTANGLE) { 807 // TODO: we really should be able to pass a region to 808 // SWAP_RECTANGLE so that we don't have to redraw all this. 809 mDirtyRegion.set(mInvalidRegion.bounds()); 810 } else { 811 // in the BUFFER_PRESERVED case, obviously, we can update only 812 // what's needed and nothing more. 813 // NOTE: this is NOT a common case, as preserving the backbuffer 814 // is costly and usually involves copying the whole update back. 815 } 816 } else { 817 if (flags & DisplayHardware::PARTIAL_UPDATES) { 818 // We need to redraw the rectangle that will be updated 819 // (pushed to the framebuffer). 820 // This is needed because PARTIAL_UPDATES only takes one 821 // rectangle instead of a region (see DisplayHardware::flip()) 822 mDirtyRegion.set(mInvalidRegion.bounds()); 823 } else { 824 // we need to redraw everything (the whole screen) 825 mDirtyRegion.set(hw.bounds()); 826 mInvalidRegion = mDirtyRegion; 827 } 828 } 829 830 // compose all surfaces 831 composeSurfaces(mDirtyRegion); 832 833 // clear the dirty regions 834 mDirtyRegion.clear(); 835} 836 837void SurfaceFlinger::composeSurfaces(const Region& dirty) 838{ 839 if (UNLIKELY(!mWormholeRegion.isEmpty())) { 840 // should never happen unless the window manager has a bug 841 // draw something... 842 drawWormhole(); 843 } 844 845 status_t err = NO_ERROR; 846 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 847 size_t count = layers.size(); 848 849 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 850 HWComposer& hwc(hw.getHwComposer()); 851 hwc_layer_t* const cur(hwc.getLayers()); 852 853 LOGE_IF(cur && hwc.getNumLayers() != count, 854 "HAL number of layers (%d) doesn't match surfaceflinger (%d)", 855 hwc.getNumLayers(), count); 856 857 // just to be extra-safe, use the smallest count 858 if (hwc.initCheck() == NO_ERROR) { 859 count = count < hwc.getNumLayers() ? count : hwc.getNumLayers(); 860 } 861 862 /* 863 * update the per-frame h/w composer data for each layer 864 * and build the transparent region of the FB 865 */ 866 Region transparent; 867 if (cur) { 868 for (size_t i=0 ; i<count ; i++) { 869 const sp<LayerBase>& layer(layers[i]); 870 layer->setPerFrameData(&cur[i]); 871 if (cur[i].hints & HWC_HINT_CLEAR_FB) { 872 if (!(layer->needsBlending())) { 873 transparent.orSelf(layer->visibleRegionScreen); 874 } 875 } 876 } 877 err = hwc.prepare(); 878 LOGE_IF(err, "HWComposer::prepare failed (%s)", strerror(-err)); 879 } 880 881 /* 882 * clear the area of the FB that need to be transparent 883 */ 884 transparent.andSelf(dirty); 885 if (!transparent.isEmpty()) { 886 glClearColor(0,0,0,0); 887 Region::const_iterator it = transparent.begin(); 888 Region::const_iterator const end = transparent.end(); 889 const int32_t height = hw.getHeight(); 890 while (it != end) { 891 const Rect& r(*it++); 892 const GLint sy = height - (r.top + r.height()); 893 glScissor(r.left, sy, r.width(), r.height()); 894 glClear(GL_COLOR_BUFFER_BIT); 895 } 896 } 897 898 899 /* 900 * and then, render the layers targeted at the framebuffer 901 */ 902 for (size_t i=0 ; i<count ; i++) { 903 if (cur) { 904 if ((cur[i].compositionType != HWC_FRAMEBUFFER) && 905 !(cur[i].flags & HWC_SKIP_LAYER)) { 906 // skip layers handled by the HAL 907 continue; 908 } 909 } 910 911 const sp<LayerBase>& layer(layers[i]); 912 const Region clip(dirty.intersect(layer->visibleRegionScreen)); 913 if (!clip.isEmpty()) { 914 layer->draw(clip); 915 } 916 } 917} 918 919void SurfaceFlinger::debugFlashRegions() 920{ 921 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 922 const uint32_t flags = hw.getFlags(); 923 924 if (!((flags & DisplayHardware::SWAP_RECTANGLE) || 925 (flags & DisplayHardware::BUFFER_PRESERVED))) { 926 const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ? 927 mDirtyRegion.bounds() : hw.bounds()); 928 composeSurfaces(repaint); 929 } 930 931 TextureManager::deactivateTextures(); 932 933 glDisable(GL_BLEND); 934 glDisable(GL_DITHER); 935 glDisable(GL_SCISSOR_TEST); 936 937 static int toggle = 0; 938 toggle = 1 - toggle; 939 if (toggle) { 940 glColor4f(1, 0, 1, 1); 941 } else { 942 glColor4f(1, 1, 0, 1); 943 } 944 945 Region::const_iterator it = mDirtyRegion.begin(); 946 Region::const_iterator const end = mDirtyRegion.end(); 947 while (it != end) { 948 const Rect& r = *it++; 949 GLfloat vertices[][2] = { 950 { r.left, r.top }, 951 { r.left, r.bottom }, 952 { r.right, r.bottom }, 953 { r.right, r.top } 954 }; 955 glVertexPointer(2, GL_FLOAT, 0, vertices); 956 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 957 } 958 959 if (mInvalidRegion.isEmpty()) { 960 mDirtyRegion.dump("mDirtyRegion"); 961 mInvalidRegion.dump("mInvalidRegion"); 962 } 963 hw.flip(mInvalidRegion); 964 965 if (mDebugRegion > 1) 966 usleep(mDebugRegion * 1000); 967 968 glEnable(GL_SCISSOR_TEST); 969 //mDirtyRegion.dump("mDirtyRegion"); 970} 971 972void SurfaceFlinger::drawWormhole() const 973{ 974 const Region region(mWormholeRegion.intersect(mDirtyRegion)); 975 if (region.isEmpty()) 976 return; 977 978 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 979 const int32_t width = hw.getWidth(); 980 const int32_t height = hw.getHeight(); 981 982 glDisable(GL_BLEND); 983 glDisable(GL_DITHER); 984 985 if (LIKELY(!mDebugBackground)) { 986 glClearColor(0,0,0,0); 987 Region::const_iterator it = region.begin(); 988 Region::const_iterator const end = region.end(); 989 while (it != end) { 990 const Rect& r = *it++; 991 const GLint sy = height - (r.top + r.height()); 992 glScissor(r.left, sy, r.width(), r.height()); 993 glClear(GL_COLOR_BUFFER_BIT); 994 } 995 } else { 996 const GLshort vertices[][2] = { { 0, 0 }, { width, 0 }, 997 { width, height }, { 0, height } }; 998 const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } }; 999 glVertexPointer(2, GL_SHORT, 0, vertices); 1000 glTexCoordPointer(2, GL_SHORT, 0, tcoords); 1001 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1002#if defined(GL_OES_EGL_image_external) 1003 if (GLExtensions::getInstance().haveTextureExternal()) { 1004 glDisable(GL_TEXTURE_EXTERNAL_OES); 1005 } 1006#endif 1007 glEnable(GL_TEXTURE_2D); 1008 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 1009 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1010 glMatrixMode(GL_TEXTURE); 1011 glLoadIdentity(); 1012 glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1); 1013 Region::const_iterator it = region.begin(); 1014 Region::const_iterator const end = region.end(); 1015 while (it != end) { 1016 const Rect& r = *it++; 1017 const GLint sy = height - (r.top + r.height()); 1018 glScissor(r.left, sy, r.width(), r.height()); 1019 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1020 } 1021 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1022 glLoadIdentity(); 1023 glMatrixMode(GL_MODELVIEW); 1024 } 1025} 1026 1027void SurfaceFlinger::debugShowFPS() const 1028{ 1029 static int mFrameCount; 1030 static int mLastFrameCount = 0; 1031 static nsecs_t mLastFpsTime = 0; 1032 static float mFps = 0; 1033 mFrameCount++; 1034 nsecs_t now = systemTime(); 1035 nsecs_t diff = now - mLastFpsTime; 1036 if (diff > ms2ns(250)) { 1037 mFps = ((mFrameCount - mLastFrameCount) * float(s2ns(1))) / diff; 1038 mLastFpsTime = now; 1039 mLastFrameCount = mFrameCount; 1040 } 1041 // XXX: mFPS has the value we want 1042 } 1043 1044status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer) 1045{ 1046 Mutex::Autolock _l(mStateLock); 1047 addLayer_l(layer); 1048 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1049 return NO_ERROR; 1050} 1051 1052status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer) 1053{ 1054 ssize_t i = mCurrentState.layersSortedByZ.add(layer); 1055 return (i < 0) ? status_t(i) : status_t(NO_ERROR); 1056} 1057 1058ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client, 1059 const sp<LayerBaseClient>& lbc) 1060{ 1061 Mutex::Autolock _l(mStateLock); 1062 1063 // attach this layer to the client 1064 ssize_t name = client->attachLayer(lbc); 1065 1066 // add this layer to the current state list 1067 addLayer_l(lbc); 1068 1069 return name; 1070} 1071 1072status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer) 1073{ 1074 Mutex::Autolock _l(mStateLock); 1075 status_t err = purgatorizeLayer_l(layer); 1076 if (err == NO_ERROR) 1077 setTransactionFlags(eTransactionNeeded); 1078 return err; 1079} 1080 1081status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase) 1082{ 1083 sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient()); 1084 if (lbc != 0) { 1085 mLayerMap.removeItem( lbc->getSurface()->asBinder() ); 1086 } 1087 ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase); 1088 if (index >= 0) { 1089 mLayersRemoved = true; 1090 return NO_ERROR; 1091 } 1092 return status_t(index); 1093} 1094 1095status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase) 1096{ 1097 // First add the layer to the purgatory list, which makes sure it won't 1098 // go away, then remove it from the main list (through a transaction). 1099 ssize_t err = removeLayer_l(layerBase); 1100 if (err >= 0) { 1101 mLayerPurgatory.add(layerBase); 1102 } 1103 1104 layerBase->onRemoved(); 1105 1106 // it's possible that we don't find a layer, because it might 1107 // have been destroyed already -- this is not technically an error 1108 // from the user because there is a race between Client::destroySurface(), 1109 // ~Client() and ~ISurface(). 1110 return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err; 1111} 1112 1113status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer) 1114{ 1115 layer->forceVisibilityTransaction(); 1116 setTransactionFlags(eTraversalNeeded); 1117 return NO_ERROR; 1118} 1119 1120uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags) 1121{ 1122 return android_atomic_and(~flags, &mTransactionFlags) & flags; 1123} 1124 1125uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags) 1126{ 1127 uint32_t old = android_atomic_or(flags, &mTransactionFlags); 1128 if ((old & flags)==0) { // wake the server up 1129 signalEvent(); 1130 } 1131 return old; 1132} 1133 1134void SurfaceFlinger::openGlobalTransaction() 1135{ 1136 android_atomic_inc(&mTransactionCount); 1137} 1138 1139void SurfaceFlinger::closeGlobalTransaction() 1140{ 1141 if (android_atomic_dec(&mTransactionCount) == 1) { 1142 signalEvent(); 1143 1144 // if there is a transaction with a resize, wait for it to 1145 // take effect before returning. 1146 Mutex::Autolock _l(mStateLock); 1147 while (mResizeTransationPending) { 1148 status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5)); 1149 if (CC_UNLIKELY(err != NO_ERROR)) { 1150 // just in case something goes wrong in SF, return to the 1151 // called after a few seconds. 1152 LOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!"); 1153 mResizeTransationPending = false; 1154 break; 1155 } 1156 } 1157 } 1158} 1159 1160status_t SurfaceFlinger::freezeDisplay(DisplayID dpy, uint32_t flags) 1161{ 1162 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1163 return BAD_VALUE; 1164 1165 Mutex::Autolock _l(mStateLock); 1166 mCurrentState.freezeDisplay = 1; 1167 setTransactionFlags(eTransactionNeeded); 1168 1169 // flags is intended to communicate some sort of animation behavior 1170 // (for instance fading) 1171 return NO_ERROR; 1172} 1173 1174status_t SurfaceFlinger::unfreezeDisplay(DisplayID dpy, uint32_t flags) 1175{ 1176 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1177 return BAD_VALUE; 1178 1179 Mutex::Autolock _l(mStateLock); 1180 mCurrentState.freezeDisplay = 0; 1181 setTransactionFlags(eTransactionNeeded); 1182 1183 // flags is intended to communicate some sort of animation behavior 1184 // (for instance fading) 1185 return NO_ERROR; 1186} 1187 1188int SurfaceFlinger::setOrientation(DisplayID dpy, 1189 int orientation, uint32_t flags) 1190{ 1191 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1192 return BAD_VALUE; 1193 1194 Mutex::Autolock _l(mStateLock); 1195 if (mCurrentState.orientation != orientation) { 1196 if (uint32_t(orientation)<=eOrientation270 || orientation==42) { 1197 mCurrentState.orientationType = flags; 1198 mCurrentState.orientation = orientation; 1199 setTransactionFlags(eTransactionNeeded); 1200 mTransactionCV.wait(mStateLock); 1201 } else { 1202 orientation = BAD_VALUE; 1203 } 1204 } 1205 return orientation; 1206} 1207 1208sp<ISurface> SurfaceFlinger::createSurface(const sp<Client>& client, int pid, 1209 const String8& name, ISurfaceComposerClient::surface_data_t* params, 1210 DisplayID d, uint32_t w, uint32_t h, PixelFormat format, 1211 uint32_t flags) 1212{ 1213 sp<LayerBaseClient> layer; 1214 sp<LayerBaseClient::Surface> surfaceHandle; 1215 1216 if (int32_t(w|h) < 0) { 1217 LOGE("createSurface() failed, w or h is negative (w=%d, h=%d)", 1218 int(w), int(h)); 1219 return surfaceHandle; 1220 } 1221 1222 //LOGD("createSurface for pid %d (%d x %d)", pid, w, h); 1223 sp<Layer> normalLayer; 1224 switch (flags & eFXSurfaceMask) { 1225 case eFXSurfaceNormal: 1226 normalLayer = createNormalSurface(client, d, w, h, flags, format); 1227 layer = normalLayer; 1228 break; 1229 case eFXSurfaceBlur: 1230 // for now we treat Blur as Dim, until we can implement it 1231 // efficiently. 1232 case eFXSurfaceDim: 1233 layer = createDimSurface(client, d, w, h, flags); 1234 break; 1235 } 1236 1237 if (layer != 0) { 1238 layer->initStates(w, h, flags); 1239 layer->setName(name); 1240 ssize_t token = addClientLayer(client, layer); 1241 1242 surfaceHandle = layer->getSurface(); 1243 if (surfaceHandle != 0) { 1244 params->token = token; 1245 params->identity = surfaceHandle->getIdentity(); 1246 params->width = w; 1247 params->height = h; 1248 params->format = format; 1249 if (normalLayer != 0) { 1250 Mutex::Autolock _l(mStateLock); 1251 mLayerMap.add(surfaceHandle->asBinder(), normalLayer); 1252 } 1253 } 1254 1255 setTransactionFlags(eTransactionNeeded); 1256 } 1257 1258 return surfaceHandle; 1259} 1260 1261sp<Layer> SurfaceFlinger::createNormalSurface( 1262 const sp<Client>& client, DisplayID display, 1263 uint32_t w, uint32_t h, uint32_t flags, 1264 PixelFormat& format) 1265{ 1266 // initialize the surfaces 1267 switch (format) { // TODO: take h/w into account 1268 case PIXEL_FORMAT_TRANSPARENT: 1269 case PIXEL_FORMAT_TRANSLUCENT: 1270 format = PIXEL_FORMAT_RGBA_8888; 1271 break; 1272 case PIXEL_FORMAT_OPAQUE: 1273#ifdef NO_RGBX_8888 1274 format = PIXEL_FORMAT_RGB_565; 1275#else 1276 format = PIXEL_FORMAT_RGBX_8888; 1277#endif 1278 break; 1279 } 1280 1281#ifdef NO_RGBX_8888 1282 if (format == PIXEL_FORMAT_RGBX_8888) 1283 format = PIXEL_FORMAT_RGBA_8888; 1284#endif 1285 1286 sp<Layer> layer = new Layer(this, display, client); 1287 status_t err = layer->setBuffers(w, h, format, flags); 1288 if (LIKELY(err != NO_ERROR)) { 1289 LOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err)); 1290 layer.clear(); 1291 } 1292 return layer; 1293} 1294 1295sp<LayerDim> SurfaceFlinger::createDimSurface( 1296 const sp<Client>& client, DisplayID display, 1297 uint32_t w, uint32_t h, uint32_t flags) 1298{ 1299 sp<LayerDim> layer = new LayerDim(this, display, client); 1300 layer->initStates(w, h, flags); 1301 return layer; 1302} 1303 1304status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid) 1305{ 1306 /* 1307 * called by the window manager, when a surface should be marked for 1308 * destruction. 1309 * 1310 * The surface is removed from the current and drawing lists, but placed 1311 * in the purgatory queue, so it's not destroyed right-away (we need 1312 * to wait for all client's references to go away first). 1313 */ 1314 1315 status_t err = NAME_NOT_FOUND; 1316 Mutex::Autolock _l(mStateLock); 1317 sp<LayerBaseClient> layer = client->getLayerUser(sid); 1318 if (layer != 0) { 1319 err = purgatorizeLayer_l(layer); 1320 if (err == NO_ERROR) { 1321 setTransactionFlags(eTransactionNeeded); 1322 } 1323 } 1324 return err; 1325} 1326 1327status_t SurfaceFlinger::destroySurface(const sp<LayerBaseClient>& layer) 1328{ 1329 // called by ~ISurface() when all references are gone 1330 1331 class MessageDestroySurface : public MessageBase { 1332 SurfaceFlinger* flinger; 1333 sp<LayerBaseClient> layer; 1334 public: 1335 MessageDestroySurface( 1336 SurfaceFlinger* flinger, const sp<LayerBaseClient>& layer) 1337 : flinger(flinger), layer(layer) { } 1338 virtual bool handler() { 1339 sp<LayerBaseClient> l(layer); 1340 layer.clear(); // clear it outside of the lock; 1341 Mutex::Autolock _l(flinger->mStateLock); 1342 /* 1343 * remove the layer from the current list -- chances are that it's 1344 * not in the list anyway, because it should have been removed 1345 * already upon request of the client (eg: window manager). 1346 * However, a buggy client could have not done that. 1347 * Since we know we don't have any more clients, we don't need 1348 * to use the purgatory. 1349 */ 1350 status_t err = flinger->removeLayer_l(l); 1351 if (err == NAME_NOT_FOUND) { 1352 // The surface wasn't in the current list, which means it was 1353 // removed already, which means it is in the purgatory, 1354 // and need to be removed from there. 1355 // This needs to happen from the main thread since its dtor 1356 // must run from there (b/c of OpenGL ES). Additionally, we 1357 // can't really acquire our internal lock from 1358 // destroySurface() -- see postMessage() below. 1359 ssize_t idx = flinger->mLayerPurgatory.remove(l); 1360 LOGE_IF(idx < 0, 1361 "layer=%p is not in the purgatory list", l.get()); 1362 } 1363 1364 LOGE_IF(err<0 && err != NAME_NOT_FOUND, 1365 "error removing layer=%p (%s)", l.get(), strerror(-err)); 1366 return true; 1367 } 1368 }; 1369 1370 postMessageAsync( new MessageDestroySurface(this, layer) ); 1371 return NO_ERROR; 1372} 1373 1374status_t SurfaceFlinger::setClientState( 1375 const sp<Client>& client, 1376 int32_t count, 1377 const layer_state_t* states) 1378{ 1379 Mutex::Autolock _l(mStateLock); 1380 uint32_t flags = 0; 1381 for (int i=0 ; i<count ; i++) { 1382 const layer_state_t& s(states[i]); 1383 sp<LayerBaseClient> layer(client->getLayerUser(s.surface)); 1384 if (layer != 0) { 1385 const uint32_t what = s.what; 1386 if (what & ePositionChanged) { 1387 if (layer->setPosition(s.x, s.y)) 1388 flags |= eTraversalNeeded; 1389 } 1390 if (what & eLayerChanged) { 1391 ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer); 1392 if (layer->setLayer(s.z)) { 1393 mCurrentState.layersSortedByZ.removeAt(idx); 1394 mCurrentState.layersSortedByZ.add(layer); 1395 // we need traversal (state changed) 1396 // AND transaction (list changed) 1397 flags |= eTransactionNeeded|eTraversalNeeded; 1398 } 1399 } 1400 if (what & eSizeChanged) { 1401 if (layer->setSize(s.w, s.h)) { 1402 flags |= eTraversalNeeded; 1403 mResizeTransationPending = true; 1404 } 1405 } 1406 if (what & eAlphaChanged) { 1407 if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f))) 1408 flags |= eTraversalNeeded; 1409 } 1410 if (what & eMatrixChanged) { 1411 if (layer->setMatrix(s.matrix)) 1412 flags |= eTraversalNeeded; 1413 } 1414 if (what & eTransparentRegionChanged) { 1415 if (layer->setTransparentRegionHint(s.transparentRegion)) 1416 flags |= eTraversalNeeded; 1417 } 1418 if (what & eVisibilityChanged) { 1419 if (layer->setFlags(s.flags, s.mask)) 1420 flags |= eTraversalNeeded; 1421 } 1422 } 1423 } 1424 if (flags) { 1425 setTransactionFlags(flags); 1426 } 1427 return NO_ERROR; 1428} 1429 1430void SurfaceFlinger::screenReleased(int dpy) 1431{ 1432 // this may be called by a signal handler, we can't do too much in here 1433 android_atomic_or(eConsoleReleased, &mConsoleSignals); 1434 signalEvent(); 1435} 1436 1437void SurfaceFlinger::screenAcquired(int dpy) 1438{ 1439 // this may be called by a signal handler, we can't do too much in here 1440 android_atomic_or(eConsoleAcquired, &mConsoleSignals); 1441 signalEvent(); 1442} 1443 1444status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args) 1445{ 1446 const size_t SIZE = 4096; 1447 char buffer[SIZE]; 1448 String8 result; 1449 if (!mDump.checkCalling()) { 1450 snprintf(buffer, SIZE, "Permission Denial: " 1451 "can't dump SurfaceFlinger from pid=%d, uid=%d\n", 1452 IPCThreadState::self()->getCallingPid(), 1453 IPCThreadState::self()->getCallingUid()); 1454 result.append(buffer); 1455 } else { 1456 1457 // figure out if we're stuck somewhere 1458 const nsecs_t now = systemTime(); 1459 const nsecs_t inSwapBuffers(mDebugInSwapBuffers); 1460 const nsecs_t inTransaction(mDebugInTransaction); 1461 nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0; 1462 nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0; 1463 1464 // Try to get the main lock, but don't insist if we can't 1465 // (this would indicate SF is stuck, but we want to be able to 1466 // print something in dumpsys). 1467 int retry = 3; 1468 while (mStateLock.tryLock()<0 && --retry>=0) { 1469 usleep(1000000); 1470 } 1471 const bool locked(retry >= 0); 1472 if (!locked) { 1473 snprintf(buffer, SIZE, 1474 "SurfaceFlinger appears to be unresponsive, " 1475 "dumping anyways (no locks held)\n"); 1476 result.append(buffer); 1477 } 1478 1479 /* 1480 * Dump the visible layer list 1481 */ 1482 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1483 const size_t count = currentLayers.size(); 1484 snprintf(buffer, SIZE, "Visible layers (count = %d)\n", count); 1485 result.append(buffer); 1486 for (size_t i=0 ; i<count ; i++) { 1487 const sp<LayerBase>& layer(currentLayers[i]); 1488 layer->dump(result, buffer, SIZE); 1489 const Layer::State& s(layer->drawingState()); 1490 s.transparentRegion.dump(result, "transparentRegion"); 1491 layer->transparentRegionScreen.dump(result, "transparentRegionScreen"); 1492 layer->visibleRegionScreen.dump(result, "visibleRegionScreen"); 1493 } 1494 1495 /* 1496 * Dump the layers in the purgatory 1497 */ 1498 1499 const size_t purgatorySize = mLayerPurgatory.size(); 1500 snprintf(buffer, SIZE, "Purgatory state (%d entries)\n", purgatorySize); 1501 result.append(buffer); 1502 for (size_t i=0 ; i<purgatorySize ; i++) { 1503 const sp<LayerBase>& layer(mLayerPurgatory.itemAt(i)); 1504 layer->shortDump(result, buffer, SIZE); 1505 } 1506 1507 /* 1508 * Dump SurfaceFlinger global state 1509 */ 1510 1511 snprintf(buffer, SIZE, "SurfaceFlinger global state\n"); 1512 result.append(buffer); 1513 mWormholeRegion.dump(result, "WormholeRegion"); 1514 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1515 snprintf(buffer, SIZE, 1516 " display frozen: %s, freezeCount=%d, orientation=%d, canDraw=%d\n", 1517 mFreezeDisplay?"yes":"no", mFreezeCount, 1518 mCurrentState.orientation, hw.canDraw()); 1519 result.append(buffer); 1520 snprintf(buffer, SIZE, 1521 " last eglSwapBuffers() time: %f us\n" 1522 " last transaction time : %f us\n", 1523 mLastSwapBufferTime/1000.0, mLastTransactionTime/1000.0); 1524 result.append(buffer); 1525 1526 if (inSwapBuffersDuration || !locked) { 1527 snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n", 1528 inSwapBuffersDuration/1000.0); 1529 result.append(buffer); 1530 } 1531 1532 if (inTransactionDuration || !locked) { 1533 snprintf(buffer, SIZE, " transaction time: %f us\n", 1534 inTransactionDuration/1000.0); 1535 result.append(buffer); 1536 } 1537 1538 /* 1539 * Dump HWComposer state 1540 */ 1541 HWComposer& hwc(hw.getHwComposer()); 1542 snprintf(buffer, SIZE, " h/w composer %s and %s\n", 1543 hwc.initCheck()==NO_ERROR ? "present" : "not present", 1544 mDebugDisableHWC ? "disabled" : "enabled"); 1545 result.append(buffer); 1546 hwc.dump(result, buffer, SIZE); 1547 1548 /* 1549 * Dump gralloc state 1550 */ 1551 const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get()); 1552 alloc.dump(result); 1553 hw.dump(result); 1554 1555 if (locked) { 1556 mStateLock.unlock(); 1557 } 1558 } 1559 write(fd, result.string(), result.size()); 1560 return NO_ERROR; 1561} 1562 1563status_t SurfaceFlinger::onTransact( 1564 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1565{ 1566 switch (code) { 1567 case CREATE_CONNECTION: 1568 case OPEN_GLOBAL_TRANSACTION: 1569 case CLOSE_GLOBAL_TRANSACTION: 1570 case SET_ORIENTATION: 1571 case FREEZE_DISPLAY: 1572 case UNFREEZE_DISPLAY: 1573 case BOOT_FINISHED: 1574 case TURN_ELECTRON_BEAM_OFF: 1575 case TURN_ELECTRON_BEAM_ON: 1576 { 1577 // codes that require permission check 1578 IPCThreadState* ipc = IPCThreadState::self(); 1579 const int pid = ipc->getCallingPid(); 1580 const int uid = ipc->getCallingUid(); 1581 if ((uid != AID_GRAPHICS) && !mAccessSurfaceFlinger.check(pid, uid)) { 1582 LOGE("Permission Denial: " 1583 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1584 return PERMISSION_DENIED; 1585 } 1586 break; 1587 } 1588 case CAPTURE_SCREEN: 1589 { 1590 // codes that require permission check 1591 IPCThreadState* ipc = IPCThreadState::self(); 1592 const int pid = ipc->getCallingPid(); 1593 const int uid = ipc->getCallingUid(); 1594 if ((uid != AID_GRAPHICS) && !mReadFramebuffer.check(pid, uid)) { 1595 LOGE("Permission Denial: " 1596 "can't read framebuffer pid=%d, uid=%d", pid, uid); 1597 return PERMISSION_DENIED; 1598 } 1599 break; 1600 } 1601 } 1602 1603 status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags); 1604 if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) { 1605 CHECK_INTERFACE(ISurfaceComposer, data, reply); 1606 if (UNLIKELY(!mHardwareTest.checkCalling())) { 1607 IPCThreadState* ipc = IPCThreadState::self(); 1608 const int pid = ipc->getCallingPid(); 1609 const int uid = ipc->getCallingUid(); 1610 LOGE("Permission Denial: " 1611 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1612 return PERMISSION_DENIED; 1613 } 1614 int n; 1615 switch (code) { 1616 case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE 1617 case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE 1618 return NO_ERROR; 1619 case 1002: // SHOW_UPDATES 1620 n = data.readInt32(); 1621 mDebugRegion = n ? n : (mDebugRegion ? 0 : 1); 1622 return NO_ERROR; 1623 case 1003: // SHOW_BACKGROUND 1624 n = data.readInt32(); 1625 mDebugBackground = n ? 1 : 0; 1626 return NO_ERROR; 1627 case 1008: // toggle use of hw composer 1628 n = data.readInt32(); 1629 mDebugDisableHWC = n ? 1 : 0; 1630 invalidateHwcGeometry(); 1631 // fall-through... 1632 case 1004:{ // repaint everything 1633 Mutex::Autolock _l(mStateLock); 1634 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1635 mDirtyRegion.set(hw.bounds()); // careful that's not thread-safe 1636 signalEvent(); 1637 return NO_ERROR; 1638 } 1639 case 1005:{ // force transaction 1640 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1641 return NO_ERROR; 1642 } 1643 case 1006:{ // enable/disable GraphicLog 1644 int enabled = data.readInt32(); 1645 GraphicLog::getInstance().setEnabled(enabled); 1646 return NO_ERROR; 1647 } 1648 case 1007: // set mFreezeCount 1649 mFreezeCount = data.readInt32(); 1650 mFreezeDisplayTime = 0; 1651 return NO_ERROR; 1652 case 1010: // interrogate. 1653 reply->writeInt32(0); 1654 reply->writeInt32(0); 1655 reply->writeInt32(mDebugRegion); 1656 reply->writeInt32(mDebugBackground); 1657 return NO_ERROR; 1658 case 1013: { 1659 Mutex::Autolock _l(mStateLock); 1660 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1661 reply->writeInt32(hw.getPageFlipCount()); 1662 } 1663 return NO_ERROR; 1664 } 1665 } 1666 return err; 1667} 1668 1669// --------------------------------------------------------------------------- 1670 1671status_t SurfaceFlinger::renderScreenToTextureLocked(DisplayID dpy, 1672 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1673{ 1674 if (!GLExtensions::getInstance().haveFramebufferObject()) 1675 return INVALID_OPERATION; 1676 1677 // get screen geometry 1678 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 1679 const uint32_t hw_w = hw.getWidth(); 1680 const uint32_t hw_h = hw.getHeight(); 1681 GLfloat u = 1; 1682 GLfloat v = 1; 1683 1684 // make sure to clear all GL error flags 1685 while ( glGetError() != GL_NO_ERROR ) ; 1686 1687 // create a FBO 1688 GLuint name, tname; 1689 glGenTextures(1, &tname); 1690 glBindTexture(GL_TEXTURE_2D, tname); 1691 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1692 hw_w, hw_h, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1693 if (glGetError() != GL_NO_ERROR) { 1694 while ( glGetError() != GL_NO_ERROR ) ; 1695 GLint tw = (2 << (31 - clz(hw_w))); 1696 GLint th = (2 << (31 - clz(hw_h))); 1697 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1698 tw, th, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1699 u = GLfloat(hw_w) / tw; 1700 v = GLfloat(hw_h) / th; 1701 } 1702 glGenFramebuffersOES(1, &name); 1703 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 1704 glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, 1705 GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0); 1706 1707 // redraw the screen entirely... 1708 glClearColor(0,0,0,1); 1709 glClear(GL_COLOR_BUFFER_BIT); 1710 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1711 const size_t count = layers.size(); 1712 for (size_t i=0 ; i<count ; ++i) { 1713 const sp<LayerBase>& layer(layers[i]); 1714 layer->drawForSreenShot(); 1715 } 1716 1717 // back to main framebuffer 1718 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1719 glDisable(GL_SCISSOR_TEST); 1720 glDeleteFramebuffersOES(1, &name); 1721 1722 *textureName = tname; 1723 *uOut = u; 1724 *vOut = v; 1725 return NO_ERROR; 1726} 1727 1728// --------------------------------------------------------------------------- 1729 1730status_t SurfaceFlinger::electronBeamOffAnimationImplLocked() 1731{ 1732 status_t result = PERMISSION_DENIED; 1733 1734 if (!GLExtensions::getInstance().haveFramebufferObject()) 1735 return INVALID_OPERATION; 1736 1737 // get screen geometry 1738 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1739 const uint32_t hw_w = hw.getWidth(); 1740 const uint32_t hw_h = hw.getHeight(); 1741 const Region screenBounds(hw.bounds()); 1742 1743 GLfloat u, v; 1744 GLuint tname; 1745 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1746 if (result != NO_ERROR) { 1747 return result; 1748 } 1749 1750 GLfloat vtx[8]; 1751 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1752 glEnable(GL_TEXTURE_2D); 1753 glBindTexture(GL_TEXTURE_2D, tname); 1754 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1755 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1756 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1757 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1758 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1759 glVertexPointer(2, GL_FLOAT, 0, vtx); 1760 1761 class s_curve_interpolator { 1762 const float nbFrames, s, v; 1763 public: 1764 s_curve_interpolator(int nbFrames, float s) 1765 : nbFrames(1.0f / (nbFrames-1)), s(s), 1766 v(1.0f + expf(-s + 0.5f*s)) { 1767 } 1768 float operator()(int f) { 1769 const float x = f * nbFrames; 1770 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1771 } 1772 }; 1773 1774 class v_stretch { 1775 const GLfloat hw_w, hw_h; 1776 public: 1777 v_stretch(uint32_t hw_w, uint32_t hw_h) 1778 : hw_w(hw_w), hw_h(hw_h) { 1779 } 1780 void operator()(GLfloat* vtx, float v) { 1781 const GLfloat w = hw_w + (hw_w * v); 1782 const GLfloat h = hw_h - (hw_h * v); 1783 const GLfloat x = (hw_w - w) * 0.5f; 1784 const GLfloat y = (hw_h - h) * 0.5f; 1785 vtx[0] = x; vtx[1] = y; 1786 vtx[2] = x; vtx[3] = y + h; 1787 vtx[4] = x + w; vtx[5] = y + h; 1788 vtx[6] = x + w; vtx[7] = y; 1789 } 1790 }; 1791 1792 class h_stretch { 1793 const GLfloat hw_w, hw_h; 1794 public: 1795 h_stretch(uint32_t hw_w, uint32_t hw_h) 1796 : hw_w(hw_w), hw_h(hw_h) { 1797 } 1798 void operator()(GLfloat* vtx, float v) { 1799 const GLfloat w = hw_w - (hw_w * v); 1800 const GLfloat h = 1.0f; 1801 const GLfloat x = (hw_w - w) * 0.5f; 1802 const GLfloat y = (hw_h - h) * 0.5f; 1803 vtx[0] = x; vtx[1] = y; 1804 vtx[2] = x; vtx[3] = y + h; 1805 vtx[4] = x + w; vtx[5] = y + h; 1806 vtx[6] = x + w; vtx[7] = y; 1807 } 1808 }; 1809 1810 // the full animation is 24 frames 1811 const int nbFrames = 12; 1812 s_curve_interpolator itr(nbFrames, 7.5f); 1813 s_curve_interpolator itg(nbFrames, 8.0f); 1814 s_curve_interpolator itb(nbFrames, 8.5f); 1815 1816 v_stretch vverts(hw_w, hw_h); 1817 glEnable(GL_BLEND); 1818 glBlendFunc(GL_ONE, GL_ONE); 1819 for (int i=0 ; i<nbFrames ; i++) { 1820 float x, y, w, h; 1821 const float vr = itr(i); 1822 const float vg = itg(i); 1823 const float vb = itb(i); 1824 1825 // clear screen 1826 glColorMask(1,1,1,1); 1827 glClear(GL_COLOR_BUFFER_BIT); 1828 glEnable(GL_TEXTURE_2D); 1829 1830 // draw the red plane 1831 vverts(vtx, vr); 1832 glColorMask(1,0,0,1); 1833 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1834 1835 // draw the green plane 1836 vverts(vtx, vg); 1837 glColorMask(0,1,0,1); 1838 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1839 1840 // draw the blue plane 1841 vverts(vtx, vb); 1842 glColorMask(0,0,1,1); 1843 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1844 1845 // draw the white highlight (we use the last vertices) 1846 glDisable(GL_TEXTURE_2D); 1847 glColorMask(1,1,1,1); 1848 glColor4f(vg, vg, vg, 1); 1849 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1850 hw.flip(screenBounds); 1851 } 1852 1853 h_stretch hverts(hw_w, hw_h); 1854 glDisable(GL_BLEND); 1855 glDisable(GL_TEXTURE_2D); 1856 glColorMask(1,1,1,1); 1857 for (int i=0 ; i<nbFrames ; i++) { 1858 const float v = itg(i); 1859 hverts(vtx, v); 1860 glClear(GL_COLOR_BUFFER_BIT); 1861 glColor4f(1-v, 1-v, 1-v, 1); 1862 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1863 hw.flip(screenBounds); 1864 } 1865 1866 glColorMask(1,1,1,1); 1867 glEnable(GL_SCISSOR_TEST); 1868 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1869 glDeleteTextures(1, &tname); 1870 return NO_ERROR; 1871} 1872 1873status_t SurfaceFlinger::electronBeamOnAnimationImplLocked() 1874{ 1875 status_t result = PERMISSION_DENIED; 1876 1877 if (!GLExtensions::getInstance().haveFramebufferObject()) 1878 return INVALID_OPERATION; 1879 1880 1881 // get screen geometry 1882 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1883 const uint32_t hw_w = hw.getWidth(); 1884 const uint32_t hw_h = hw.getHeight(); 1885 const Region screenBounds(hw.bounds()); 1886 1887 GLfloat u, v; 1888 GLuint tname; 1889 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1890 if (result != NO_ERROR) { 1891 return result; 1892 } 1893 1894 // back to main framebuffer 1895 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1896 glDisable(GL_SCISSOR_TEST); 1897 1898 GLfloat vtx[8]; 1899 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1900 glEnable(GL_TEXTURE_2D); 1901 glBindTexture(GL_TEXTURE_2D, tname); 1902 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 1903 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1904 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1905 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1906 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1907 glVertexPointer(2, GL_FLOAT, 0, vtx); 1908 1909 class s_curve_interpolator { 1910 const float nbFrames, s, v; 1911 public: 1912 s_curve_interpolator(int nbFrames, float s) 1913 : nbFrames(1.0f / (nbFrames-1)), s(s), 1914 v(1.0f + expf(-s + 0.5f*s)) { 1915 } 1916 float operator()(int f) { 1917 const float x = f * nbFrames; 1918 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1919 } 1920 }; 1921 1922 class v_stretch { 1923 const GLfloat hw_w, hw_h; 1924 public: 1925 v_stretch(uint32_t hw_w, uint32_t hw_h) 1926 : hw_w(hw_w), hw_h(hw_h) { 1927 } 1928 void operator()(GLfloat* vtx, float v) { 1929 const GLfloat w = hw_w + (hw_w * v); 1930 const GLfloat h = hw_h - (hw_h * v); 1931 const GLfloat x = (hw_w - w) * 0.5f; 1932 const GLfloat y = (hw_h - h) * 0.5f; 1933 vtx[0] = x; vtx[1] = y; 1934 vtx[2] = x; vtx[3] = y + h; 1935 vtx[4] = x + w; vtx[5] = y + h; 1936 vtx[6] = x + w; vtx[7] = y; 1937 } 1938 }; 1939 1940 class h_stretch { 1941 const GLfloat hw_w, hw_h; 1942 public: 1943 h_stretch(uint32_t hw_w, uint32_t hw_h) 1944 : hw_w(hw_w), hw_h(hw_h) { 1945 } 1946 void operator()(GLfloat* vtx, float v) { 1947 const GLfloat w = hw_w - (hw_w * v); 1948 const GLfloat h = 1.0f; 1949 const GLfloat x = (hw_w - w) * 0.5f; 1950 const GLfloat y = (hw_h - h) * 0.5f; 1951 vtx[0] = x; vtx[1] = y; 1952 vtx[2] = x; vtx[3] = y + h; 1953 vtx[4] = x + w; vtx[5] = y + h; 1954 vtx[6] = x + w; vtx[7] = y; 1955 } 1956 }; 1957 1958 // the full animation is 12 frames 1959 int nbFrames = 8; 1960 s_curve_interpolator itr(nbFrames, 7.5f); 1961 s_curve_interpolator itg(nbFrames, 8.0f); 1962 s_curve_interpolator itb(nbFrames, 8.5f); 1963 1964 h_stretch hverts(hw_w, hw_h); 1965 glDisable(GL_BLEND); 1966 glDisable(GL_TEXTURE_2D); 1967 glColorMask(1,1,1,1); 1968 for (int i=nbFrames-1 ; i>=0 ; i--) { 1969 const float v = itg(i); 1970 hverts(vtx, v); 1971 glClear(GL_COLOR_BUFFER_BIT); 1972 glColor4f(1-v, 1-v, 1-v, 1); 1973 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1974 hw.flip(screenBounds); 1975 } 1976 1977 nbFrames = 4; 1978 v_stretch vverts(hw_w, hw_h); 1979 glEnable(GL_BLEND); 1980 glBlendFunc(GL_ONE, GL_ONE); 1981 for (int i=nbFrames-1 ; i>=0 ; i--) { 1982 float x, y, w, h; 1983 const float vr = itr(i); 1984 const float vg = itg(i); 1985 const float vb = itb(i); 1986 1987 // clear screen 1988 glColorMask(1,1,1,1); 1989 glClear(GL_COLOR_BUFFER_BIT); 1990 glEnable(GL_TEXTURE_2D); 1991 1992 // draw the red plane 1993 vverts(vtx, vr); 1994 glColorMask(1,0,0,1); 1995 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1996 1997 // draw the green plane 1998 vverts(vtx, vg); 1999 glColorMask(0,1,0,1); 2000 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2001 2002 // draw the blue plane 2003 vverts(vtx, vb); 2004 glColorMask(0,0,1,1); 2005 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2006 2007 hw.flip(screenBounds); 2008 } 2009 2010 glColorMask(1,1,1,1); 2011 glEnable(GL_SCISSOR_TEST); 2012 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 2013 glDeleteTextures(1, &tname); 2014 2015 return NO_ERROR; 2016} 2017 2018// --------------------------------------------------------------------------- 2019 2020status_t SurfaceFlinger::turnElectronBeamOffImplLocked(int32_t mode) 2021{ 2022 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2023 if (!hw.canDraw()) { 2024 // we're already off 2025 return NO_ERROR; 2026 } 2027 if (mode & ISurfaceComposer::eElectronBeamAnimationOff) { 2028 electronBeamOffAnimationImplLocked(); 2029 } 2030 2031 // always clear the whole screen at the end of the animation 2032 glClearColor(0,0,0,1); 2033 glDisable(GL_SCISSOR_TEST); 2034 glClear(GL_COLOR_BUFFER_BIT); 2035 glEnable(GL_SCISSOR_TEST); 2036 hw.flip( Region(hw.bounds()) ); 2037 2038 hw.setCanDraw(false); 2039 return NO_ERROR; 2040} 2041 2042status_t SurfaceFlinger::turnElectronBeamOff(int32_t mode) 2043{ 2044 class MessageTurnElectronBeamOff : public MessageBase { 2045 SurfaceFlinger* flinger; 2046 int32_t mode; 2047 status_t result; 2048 public: 2049 MessageTurnElectronBeamOff(SurfaceFlinger* flinger, int32_t mode) 2050 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2051 } 2052 status_t getResult() const { 2053 return result; 2054 } 2055 virtual bool handler() { 2056 Mutex::Autolock _l(flinger->mStateLock); 2057 result = flinger->turnElectronBeamOffImplLocked(mode); 2058 return true; 2059 } 2060 }; 2061 2062 sp<MessageBase> msg = new MessageTurnElectronBeamOff(this, mode); 2063 status_t res = postMessageSync(msg); 2064 if (res == NO_ERROR) { 2065 res = static_cast<MessageTurnElectronBeamOff*>( msg.get() )->getResult(); 2066 2067 // work-around: when the power-manager calls us we activate the 2068 // animation. eventually, the "on" animation will be called 2069 // by the power-manager itself 2070 mElectronBeamAnimationMode = mode; 2071 } 2072 return res; 2073} 2074 2075// --------------------------------------------------------------------------- 2076 2077status_t SurfaceFlinger::turnElectronBeamOnImplLocked(int32_t mode) 2078{ 2079 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2080 if (hw.canDraw()) { 2081 // we're already on 2082 return NO_ERROR; 2083 } 2084 if (mode & ISurfaceComposer::eElectronBeamAnimationOn) { 2085 electronBeamOnAnimationImplLocked(); 2086 } 2087 hw.setCanDraw(true); 2088 2089 // make sure to redraw the whole screen when the animation is done 2090 mDirtyRegion.set(hw.bounds()); 2091 signalEvent(); 2092 2093 return NO_ERROR; 2094} 2095 2096status_t SurfaceFlinger::turnElectronBeamOn(int32_t mode) 2097{ 2098 class MessageTurnElectronBeamOn : public MessageBase { 2099 SurfaceFlinger* flinger; 2100 int32_t mode; 2101 status_t result; 2102 public: 2103 MessageTurnElectronBeamOn(SurfaceFlinger* flinger, int32_t mode) 2104 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2105 } 2106 status_t getResult() const { 2107 return result; 2108 } 2109 virtual bool handler() { 2110 Mutex::Autolock _l(flinger->mStateLock); 2111 result = flinger->turnElectronBeamOnImplLocked(mode); 2112 return true; 2113 } 2114 }; 2115 2116 postMessageAsync( new MessageTurnElectronBeamOn(this, mode) ); 2117 return NO_ERROR; 2118} 2119 2120// --------------------------------------------------------------------------- 2121 2122status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy, 2123 sp<IMemoryHeap>* heap, 2124 uint32_t* w, uint32_t* h, PixelFormat* f, 2125 uint32_t sw, uint32_t sh, 2126 uint32_t minLayerZ, uint32_t maxLayerZ) 2127{ 2128 status_t result = PERMISSION_DENIED; 2129 2130 // only one display supported for now 2131 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2132 return BAD_VALUE; 2133 2134 if (!GLExtensions::getInstance().haveFramebufferObject()) 2135 return INVALID_OPERATION; 2136 2137 // get screen geometry 2138 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 2139 const uint32_t hw_w = hw.getWidth(); 2140 const uint32_t hw_h = hw.getHeight(); 2141 2142 if ((sw > hw_w) || (sh > hw_h)) 2143 return BAD_VALUE; 2144 2145 sw = (!sw) ? hw_w : sw; 2146 sh = (!sh) ? hw_h : sh; 2147 const size_t size = sw * sh * 4; 2148 2149 LOGD("screenshot: sw=%d, sh=%d, minZ=%d, maxZ=%d", 2150 sw, sh, minLayerZ, maxLayerZ); 2151 2152 // make sure to clear all GL error flags 2153 while ( glGetError() != GL_NO_ERROR ) ; 2154 2155 // create a FBO 2156 GLuint name, tname; 2157 glGenRenderbuffersOES(1, &tname); 2158 glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname); 2159 glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh); 2160 glGenFramebuffersOES(1, &name); 2161 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 2162 glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, 2163 GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname); 2164 2165 GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES); 2166 2167 LOGD("screenshot: FBO created, status=0x%x", status); 2168 2169 if (status == GL_FRAMEBUFFER_COMPLETE_OES) { 2170 2171 // invert everything, b/c glReadPixel() below will invert the FB 2172 glViewport(0, 0, sw, sh); 2173 glScissor(0, 0, sw, sh); 2174 glMatrixMode(GL_PROJECTION); 2175 glPushMatrix(); 2176 glLoadIdentity(); 2177 glOrthof(0, hw_w, 0, hw_h, 0, 1); 2178 glMatrixMode(GL_MODELVIEW); 2179 2180 // redraw the screen entirely... 2181 glClearColor(0,0,0,1); 2182 glClear(GL_COLOR_BUFFER_BIT); 2183 2184 LOGD("screenshot: glClear() issued"); 2185 2186 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 2187 const size_t count = layers.size(); 2188 for (size_t i=0 ; i<count ; ++i) { 2189 const sp<LayerBase>& layer(layers[i]); 2190 const uint32_t z = layer->drawingState().z; 2191 if (z >= minLayerZ && z <= maxLayerZ) { 2192 layer->drawForSreenShot(); 2193 } 2194 } 2195 2196 LOGD("screenshot: All layers rendered"); 2197 2198 // XXX: this is needed on tegra 2199 glScissor(0, 0, sw, sh); 2200 2201 // check for errors and return screen capture 2202 if (glGetError() != GL_NO_ERROR) { 2203 // error while rendering 2204 result = INVALID_OPERATION; 2205 } else { 2206 // allocate shared memory large enough to hold the 2207 // screen capture 2208 sp<MemoryHeapBase> base( 2209 new MemoryHeapBase(size, 0, "screen-capture") ); 2210 void* const ptr = base->getBase(); 2211 if (ptr) { 2212 2213 LOGD("screenshot: about to call glReadPixels(0,0,%d,%d,...,%p)", 2214 sw, sh, ptr); 2215 2216 // capture the screen with glReadPixels() 2217 glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr); 2218 if (glGetError() == GL_NO_ERROR) { 2219 *heap = base; 2220 *w = sw; 2221 *h = sh; 2222 *f = PIXEL_FORMAT_RGBA_8888; 2223 result = NO_ERROR; 2224 } 2225 } else { 2226 result = NO_MEMORY; 2227 } 2228 2229 LOGD("screenshot: glReadPixels() returned %s", strerror(result)); 2230 2231 } 2232 glEnable(GL_SCISSOR_TEST); 2233 glViewport(0, 0, hw_w, hw_h); 2234 glMatrixMode(GL_PROJECTION); 2235 glPopMatrix(); 2236 glMatrixMode(GL_MODELVIEW); 2237 } else { 2238 result = BAD_VALUE; 2239 } 2240 2241 LOGD("screenshot: about to release FBO resources"); 2242 2243 // release FBO resources 2244 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 2245 glDeleteRenderbuffersOES(1, &tname); 2246 glDeleteFramebuffersOES(1, &name); 2247 2248 LOGD("screenshot: about to call compositionComplete()"); 2249 2250 hw.compositionComplete(); 2251 2252 LOGD("screenshot: result = %s", strerror(result)); 2253 2254 return result; 2255} 2256 2257 2258status_t SurfaceFlinger::captureScreen(DisplayID dpy, 2259 sp<IMemoryHeap>* heap, 2260 uint32_t* width, uint32_t* height, PixelFormat* format, 2261 uint32_t sw, uint32_t sh, 2262 uint32_t minLayerZ, uint32_t maxLayerZ) 2263{ 2264 // only one display supported for now 2265 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2266 return BAD_VALUE; 2267 2268 if (!GLExtensions::getInstance().haveFramebufferObject()) 2269 return INVALID_OPERATION; 2270 2271 class MessageCaptureScreen : public MessageBase { 2272 SurfaceFlinger* flinger; 2273 DisplayID dpy; 2274 sp<IMemoryHeap>* heap; 2275 uint32_t* w; 2276 uint32_t* h; 2277 PixelFormat* f; 2278 uint32_t sw; 2279 uint32_t sh; 2280 uint32_t minLayerZ; 2281 uint32_t maxLayerZ; 2282 status_t result; 2283 public: 2284 MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy, 2285 sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f, 2286 uint32_t sw, uint32_t sh, 2287 uint32_t minLayerZ, uint32_t maxLayerZ) 2288 : flinger(flinger), dpy(dpy), 2289 heap(heap), w(w), h(h), f(f), sw(sw), sh(sh), 2290 minLayerZ(minLayerZ), maxLayerZ(maxLayerZ), 2291 result(PERMISSION_DENIED) 2292 { 2293 } 2294 status_t getResult() const { 2295 return result; 2296 } 2297 virtual bool handler() { 2298 Mutex::Autolock _l(flinger->mStateLock); 2299 2300 // if we have secure windows, never allow the screen capture 2301 if (flinger->mSecureFrameBuffer) 2302 return true; 2303 2304 result = flinger->captureScreenImplLocked(dpy, 2305 heap, w, h, f, sw, sh, minLayerZ, maxLayerZ); 2306 2307 return true; 2308 } 2309 }; 2310 2311 sp<MessageBase> msg = new MessageCaptureScreen(this, 2312 dpy, heap, width, height, format, sw, sh, minLayerZ, maxLayerZ); 2313 status_t res = postMessageSync(msg); 2314 if (res == NO_ERROR) { 2315 res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult(); 2316 } 2317 return res; 2318} 2319 2320// --------------------------------------------------------------------------- 2321 2322sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const 2323{ 2324 sp<Layer> result; 2325 Mutex::Autolock _l(mStateLock); 2326 result = mLayerMap.valueFor( sur->asBinder() ).promote(); 2327 return result; 2328} 2329 2330// --------------------------------------------------------------------------- 2331 2332Client::Client(const sp<SurfaceFlinger>& flinger) 2333 : mFlinger(flinger), mNameGenerator(1) 2334{ 2335} 2336 2337Client::~Client() 2338{ 2339 const size_t count = mLayers.size(); 2340 for (size_t i=0 ; i<count ; i++) { 2341 sp<LayerBaseClient> layer(mLayers.valueAt(i).promote()); 2342 if (layer != 0) { 2343 mFlinger->removeLayer(layer); 2344 } 2345 } 2346} 2347 2348status_t Client::initCheck() const { 2349 return NO_ERROR; 2350} 2351 2352ssize_t Client::attachLayer(const sp<LayerBaseClient>& layer) 2353{ 2354 int32_t name = android_atomic_inc(&mNameGenerator); 2355 mLayers.add(name, layer); 2356 return name; 2357} 2358 2359void Client::detachLayer(const LayerBaseClient* layer) 2360{ 2361 // we do a linear search here, because this doesn't happen often 2362 const size_t count = mLayers.size(); 2363 for (size_t i=0 ; i<count ; i++) { 2364 if (mLayers.valueAt(i) == layer) { 2365 mLayers.removeItemsAt(i, 1); 2366 break; 2367 } 2368 } 2369} 2370sp<LayerBaseClient> Client::getLayerUser(int32_t i) const { 2371 sp<LayerBaseClient> lbc; 2372 const wp<LayerBaseClient>& layer(mLayers.valueFor(i)); 2373 if (layer != 0) { 2374 lbc = layer.promote(); 2375 LOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i)); 2376 } 2377 return lbc; 2378} 2379 2380sp<IMemoryHeap> Client::getControlBlock() const { 2381 return 0; 2382} 2383ssize_t Client::getTokenForSurface(const sp<ISurface>& sur) const { 2384 return -1; 2385} 2386sp<ISurface> Client::createSurface( 2387 ISurfaceComposerClient::surface_data_t* params, int pid, 2388 const String8& name, 2389 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2390 uint32_t flags) 2391{ 2392 return mFlinger->createSurface(this, pid, name, params, 2393 display, w, h, format, flags); 2394} 2395status_t Client::destroySurface(SurfaceID sid) { 2396 return mFlinger->removeSurface(this, sid); 2397} 2398status_t Client::setState(int32_t count, const layer_state_t* states) { 2399 return mFlinger->setClientState(this, count, states); 2400} 2401 2402// --------------------------------------------------------------------------- 2403 2404UserClient::UserClient(const sp<SurfaceFlinger>& flinger) 2405 : ctrlblk(0), mBitmap(0), mFlinger(flinger) 2406{ 2407 const int pgsize = getpagesize(); 2408 const int cblksize = ((sizeof(SharedClient)+(pgsize-1))&~(pgsize-1)); 2409 2410 mCblkHeap = new MemoryHeapBase(cblksize, 0, 2411 "SurfaceFlinger Client control-block"); 2412 2413 ctrlblk = static_cast<SharedClient *>(mCblkHeap->getBase()); 2414 if (ctrlblk) { // construct the shared structure in-place. 2415 new(ctrlblk) SharedClient; 2416 } 2417} 2418 2419UserClient::~UserClient() 2420{ 2421 if (ctrlblk) { 2422 ctrlblk->~SharedClient(); // destroy our shared-structure. 2423 } 2424 2425 /* 2426 * When a UserClient dies, it's unclear what to do exactly. 2427 * We could go ahead and destroy all surfaces linked to that client 2428 * however, it wouldn't be fair to the main Client 2429 * (usually the the window-manager), which might want to re-target 2430 * the layer to another UserClient. 2431 * I think the best is to do nothing, or not much; in most cases the 2432 * WM itself will go ahead and clean things up when it detects a client of 2433 * his has died. 2434 * The remaining question is what to display? currently we keep 2435 * just keep the current buffer. 2436 */ 2437} 2438 2439status_t UserClient::initCheck() const { 2440 return ctrlblk == 0 ? NO_INIT : NO_ERROR; 2441} 2442 2443void UserClient::detachLayer(const Layer* layer) 2444{ 2445 int32_t name = layer->getToken(); 2446 if (name >= 0) { 2447 int32_t mask = 1LU<<name; 2448 if ((android_atomic_and(~mask, &mBitmap) & mask) == 0) { 2449 LOGW("token %d wasn't marked as used %08x", name, int(mBitmap)); 2450 } 2451 } 2452} 2453 2454sp<IMemoryHeap> UserClient::getControlBlock() const { 2455 return mCblkHeap; 2456} 2457 2458ssize_t UserClient::getTokenForSurface(const sp<ISurface>& sur) const 2459{ 2460 int32_t name = NAME_NOT_FOUND; 2461 sp<Layer> layer(mFlinger->getLayer(sur)); 2462 if (layer == 0) { 2463 return name; 2464 } 2465 2466 // if this layer already has a token, just return it 2467 name = layer->getToken(); 2468 if ((name >= 0) && (layer->getClient() == this)) { 2469 return name; 2470 } 2471 2472 name = 0; 2473 do { 2474 int32_t mask = 1LU<<name; 2475 if ((android_atomic_or(mask, &mBitmap) & mask) == 0) { 2476 // we found and locked that name 2477 status_t err = layer->setToken( 2478 const_cast<UserClient*>(this), ctrlblk, name); 2479 if (err != NO_ERROR) { 2480 // free the name 2481 android_atomic_and(~mask, &mBitmap); 2482 name = err; 2483 } 2484 break; 2485 } 2486 if (++name > 31) 2487 name = NO_MEMORY; 2488 } while(name >= 0); 2489 2490 //LOGD("getTokenForSurface(%p) => %d (client=%p, bitmap=%08lx)", 2491 // sur->asBinder().get(), name, this, mBitmap); 2492 return name; 2493} 2494 2495sp<ISurface> UserClient::createSurface( 2496 ISurfaceComposerClient::surface_data_t* params, int pid, 2497 const String8& name, 2498 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2499 uint32_t flags) { 2500 return 0; 2501} 2502status_t UserClient::destroySurface(SurfaceID sid) { 2503 return INVALID_OPERATION; 2504} 2505status_t UserClient::setState(int32_t count, const layer_state_t* states) { 2506 return INVALID_OPERATION; 2507} 2508 2509// --------------------------------------------------------------------------- 2510 2511GraphicBufferAlloc::GraphicBufferAlloc() {} 2512 2513GraphicBufferAlloc::~GraphicBufferAlloc() {} 2514 2515sp<GraphicBuffer> GraphicBufferAlloc::createGraphicBuffer(uint32_t w, uint32_t h, 2516 PixelFormat format, uint32_t usage) { 2517 sp<GraphicBuffer> graphicBuffer(new GraphicBuffer(w, h, format, usage)); 2518 status_t err = graphicBuffer->initCheck(); 2519 if (err != 0) { 2520 LOGE("createGraphicBuffer: init check failed: %d", err); 2521 return 0; 2522 } else if (graphicBuffer->handle == 0) { 2523 LOGE("createGraphicBuffer: unable to create GraphicBuffer"); 2524 return 0; 2525 } 2526 Mutex::Autolock _l(mLock); 2527 mBuffers.add(graphicBuffer); 2528 return graphicBuffer; 2529} 2530 2531void GraphicBufferAlloc::freeAllGraphicBuffersExcept(int bufIdx) { 2532 Mutex::Autolock _l(mLock); 2533 if (0 <= bufIdx && bufIdx < mBuffers.size()) { 2534 sp<GraphicBuffer> b(mBuffers[bufIdx]); 2535 mBuffers.clear(); 2536 mBuffers.add(b); 2537 } else { 2538 mBuffers.clear(); 2539 } 2540} 2541 2542// --------------------------------------------------------------------------- 2543 2544GraphicPlane::GraphicPlane() 2545 : mHw(0) 2546{ 2547} 2548 2549GraphicPlane::~GraphicPlane() { 2550 delete mHw; 2551} 2552 2553bool GraphicPlane::initialized() const { 2554 return mHw ? true : false; 2555} 2556 2557int GraphicPlane::getWidth() const { 2558 return mWidth; 2559} 2560 2561int GraphicPlane::getHeight() const { 2562 return mHeight; 2563} 2564 2565void GraphicPlane::setDisplayHardware(DisplayHardware *hw) 2566{ 2567 mHw = hw; 2568 2569 // initialize the display orientation transform. 2570 // it's a constant that should come from the display driver. 2571 int displayOrientation = ISurfaceComposer::eOrientationDefault; 2572 char property[PROPERTY_VALUE_MAX]; 2573 if (property_get("ro.sf.hwrotation", property, NULL) > 0) { 2574 //displayOrientation 2575 switch (atoi(property)) { 2576 case 90: 2577 displayOrientation = ISurfaceComposer::eOrientation90; 2578 break; 2579 case 270: 2580 displayOrientation = ISurfaceComposer::eOrientation270; 2581 break; 2582 } 2583 } 2584 2585 const float w = hw->getWidth(); 2586 const float h = hw->getHeight(); 2587 GraphicPlane::orientationToTransfrom(displayOrientation, w, h, 2588 &mDisplayTransform); 2589 if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) { 2590 mDisplayWidth = h; 2591 mDisplayHeight = w; 2592 } else { 2593 mDisplayWidth = w; 2594 mDisplayHeight = h; 2595 } 2596 2597 setOrientation(ISurfaceComposer::eOrientationDefault); 2598} 2599 2600status_t GraphicPlane::orientationToTransfrom( 2601 int orientation, int w, int h, Transform* tr) 2602{ 2603 uint32_t flags = 0; 2604 switch (orientation) { 2605 case ISurfaceComposer::eOrientationDefault: 2606 flags = Transform::ROT_0; 2607 break; 2608 case ISurfaceComposer::eOrientation90: 2609 flags = Transform::ROT_90; 2610 break; 2611 case ISurfaceComposer::eOrientation180: 2612 flags = Transform::ROT_180; 2613 break; 2614 case ISurfaceComposer::eOrientation270: 2615 flags = Transform::ROT_270; 2616 break; 2617 default: 2618 return BAD_VALUE; 2619 } 2620 tr->set(flags, w, h); 2621 return NO_ERROR; 2622} 2623 2624status_t GraphicPlane::setOrientation(int orientation) 2625{ 2626 // If the rotation can be handled in hardware, this is where 2627 // the magic should happen. 2628 2629 const DisplayHardware& hw(displayHardware()); 2630 const float w = mDisplayWidth; 2631 const float h = mDisplayHeight; 2632 mWidth = int(w); 2633 mHeight = int(h); 2634 2635 Transform orientationTransform; 2636 GraphicPlane::orientationToTransfrom(orientation, w, h, 2637 &orientationTransform); 2638 if (orientation & ISurfaceComposer::eOrientationSwapMask) { 2639 mWidth = int(h); 2640 mHeight = int(w); 2641 } 2642 2643 mOrientation = orientation; 2644 mGlobalTransform = mDisplayTransform * orientationTransform; 2645 return NO_ERROR; 2646} 2647 2648const DisplayHardware& GraphicPlane::displayHardware() const { 2649 return *mHw; 2650} 2651 2652DisplayHardware& GraphicPlane::editDisplayHardware() { 2653 return *mHw; 2654} 2655 2656const Transform& GraphicPlane::transform() const { 2657 return mGlobalTransform; 2658} 2659 2660EGLDisplay GraphicPlane::getEGLDisplay() const { 2661 return mHw->getEGLDisplay(); 2662} 2663 2664// --------------------------------------------------------------------------- 2665 2666}; // namespace android 2667