SurfaceFlinger.cpp revision 9daa5c9b9dd286cbbf5d43f7e45a5e9e4048e855
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 "LayerBlur.h" 51#include "LayerBuffer.h" 52#include "LayerDim.h" 53#include "SurfaceFlinger.h" 54 55#include "DisplayHardware/DisplayHardware.h" 56 57/* ideally AID_GRAPHICS would be in a semi-public header 58 * or there would be a way to map a user/group name to its id 59 */ 60#ifndef AID_GRAPHICS 61#define AID_GRAPHICS 1003 62#endif 63 64#define DISPLAY_COUNT 1 65 66namespace android { 67// --------------------------------------------------------------------------- 68 69SurfaceFlinger::SurfaceFlinger() 70 : BnSurfaceComposer(), Thread(false), 71 mTransactionFlags(0), 72 mTransactionCount(0), 73 mResizeTransationPending(false), 74 mLayersRemoved(false), 75 mBootTime(systemTime()), 76 mHardwareTest("android.permission.HARDWARE_TEST"), 77 mAccessSurfaceFlinger("android.permission.ACCESS_SURFACE_FLINGER"), 78 mReadFramebuffer("android.permission.READ_FRAME_BUFFER"), 79 mDump("android.permission.DUMP"), 80 mVisibleRegionsDirty(false), 81 mDeferReleaseConsole(false), 82 mFreezeDisplay(false), 83 mElectronBeamAnimation(false), 84 mFreezeCount(0), 85 mFreezeDisplayTime(0), 86 mDebugRegion(0), 87 mDebugBackground(0), 88 mDebugInSwapBuffers(0), 89 mLastSwapBufferTime(0), 90 mDebugInTransaction(0), 91 mLastTransactionTime(0), 92 mBootFinished(false), 93 mConsoleSignals(0), 94 mSecureFrameBuffer(0) 95{ 96 init(); 97} 98 99void SurfaceFlinger::init() 100{ 101 LOGI("SurfaceFlinger is starting"); 102 103 // debugging stuff... 104 char value[PROPERTY_VALUE_MAX]; 105 property_get("debug.sf.showupdates", value, "0"); 106 mDebugRegion = atoi(value); 107 property_get("debug.sf.showbackground", value, "0"); 108 mDebugBackground = atoi(value); 109 110 LOGI_IF(mDebugRegion, "showupdates enabled"); 111 LOGI_IF(mDebugBackground, "showbackground enabled"); 112} 113 114SurfaceFlinger::~SurfaceFlinger() 115{ 116 glDeleteTextures(1, &mWormholeTexName); 117} 118 119overlay_control_device_t* SurfaceFlinger::getOverlayEngine() const 120{ 121 return graphicPlane(0).displayHardware().getOverlayEngine(); 122} 123 124sp<IMemoryHeap> SurfaceFlinger::getCblk() const 125{ 126 return mServerHeap; 127} 128 129sp<ISurfaceComposerClient> SurfaceFlinger::createConnection() 130{ 131 sp<ISurfaceComposerClient> bclient; 132 sp<Client> client(new Client(this)); 133 status_t err = client->initCheck(); 134 if (err == NO_ERROR) { 135 bclient = client; 136 } 137 return bclient; 138} 139 140sp<ISurfaceComposerClient> SurfaceFlinger::createClientConnection() 141{ 142 sp<ISurfaceComposerClient> bclient; 143 sp<UserClient> client(new UserClient(this)); 144 status_t err = client->initCheck(); 145 if (err == NO_ERROR) { 146 bclient = client; 147 } 148 return bclient; 149} 150 151 152const GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) const 153{ 154 LOGE_IF(uint32_t(dpy) >= DISPLAY_COUNT, "Invalid DisplayID %d", dpy); 155 const GraphicPlane& plane(mGraphicPlanes[dpy]); 156 return plane; 157} 158 159GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) 160{ 161 return const_cast<GraphicPlane&>( 162 const_cast<SurfaceFlinger const *>(this)->graphicPlane(dpy)); 163} 164 165void SurfaceFlinger::bootFinished() 166{ 167 const nsecs_t now = systemTime(); 168 const nsecs_t duration = now - mBootTime; 169 LOGI("Boot is finished (%ld ms)", long(ns2ms(duration)) ); 170 mBootFinished = true; 171 property_set("ctl.stop", "bootanim"); 172} 173 174void SurfaceFlinger::onFirstRef() 175{ 176 run("SurfaceFlinger", PRIORITY_URGENT_DISPLAY); 177 178 // Wait for the main thread to be done with its initialization 179 mReadyToRunBarrier.wait(); 180} 181 182static inline uint16_t pack565(int r, int g, int b) { 183 return (r<<11)|(g<<5)|b; 184} 185 186status_t SurfaceFlinger::readyToRun() 187{ 188 LOGI( "SurfaceFlinger's main thread ready to run. " 189 "Initializing graphics H/W..."); 190 191 // we only support one display currently 192 int dpy = 0; 193 194 { 195 // initialize the main display 196 GraphicPlane& plane(graphicPlane(dpy)); 197 DisplayHardware* const hw = new DisplayHardware(this, dpy); 198 plane.setDisplayHardware(hw); 199 } 200 201 // create the shared control-block 202 mServerHeap = new MemoryHeapBase(4096, 203 MemoryHeapBase::READ_ONLY, "SurfaceFlinger read-only heap"); 204 LOGE_IF(mServerHeap==0, "can't create shared memory dealer"); 205 206 mServerCblk = static_cast<surface_flinger_cblk_t*>(mServerHeap->getBase()); 207 LOGE_IF(mServerCblk==0, "can't get to shared control block's address"); 208 209 new(mServerCblk) surface_flinger_cblk_t; 210 211 // initialize primary screen 212 // (other display should be initialized in the same manner, but 213 // asynchronously, as they could come and go. None of this is supported 214 // yet). 215 const GraphicPlane& plane(graphicPlane(dpy)); 216 const DisplayHardware& hw = plane.displayHardware(); 217 const uint32_t w = hw.getWidth(); 218 const uint32_t h = hw.getHeight(); 219 const uint32_t f = hw.getFormat(); 220 hw.makeCurrent(); 221 222 // initialize the shared control block 223 mServerCblk->connected |= 1<<dpy; 224 display_cblk_t* dcblk = mServerCblk->displays + dpy; 225 memset(dcblk, 0, sizeof(display_cblk_t)); 226 dcblk->w = plane.getWidth(); 227 dcblk->h = plane.getHeight(); 228 dcblk->format = f; 229 dcblk->orientation = ISurfaceComposer::eOrientationDefault; 230 dcblk->xdpi = hw.getDpiX(); 231 dcblk->ydpi = hw.getDpiY(); 232 dcblk->fps = hw.getRefreshRate(); 233 dcblk->density = hw.getDensity(); 234 235 // Initialize OpenGL|ES 236 glPixelStorei(GL_UNPACK_ALIGNMENT, 4); 237 glPixelStorei(GL_PACK_ALIGNMENT, 4); 238 glEnableClientState(GL_VERTEX_ARRAY); 239 glEnable(GL_SCISSOR_TEST); 240 glShadeModel(GL_FLAT); 241 glDisable(GL_DITHER); 242 glDisable(GL_CULL_FACE); 243 244 const uint16_t g0 = pack565(0x0F,0x1F,0x0F); 245 const uint16_t g1 = pack565(0x17,0x2f,0x17); 246 const uint16_t textureData[4] = { g0, g1, g1, g0 }; 247 glGenTextures(1, &mWormholeTexName); 248 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 249 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 250 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 251 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 252 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 253 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, 254 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, textureData); 255 256 glViewport(0, 0, w, h); 257 glMatrixMode(GL_PROJECTION); 258 glLoadIdentity(); 259 glOrthof(0, w, h, 0, 0, 1); 260 261 LayerDim::initDimmer(this, w, h); 262 263 mReadyToRunBarrier.open(); 264 265 /* 266 * We're now ready to accept clients... 267 */ 268 269 // start boot animation 270 property_set("ctl.start", "bootanim"); 271 272 return NO_ERROR; 273} 274 275// ---------------------------------------------------------------------------- 276#if 0 277#pragma mark - 278#pragma mark Events Handler 279#endif 280 281void SurfaceFlinger::waitForEvent() 282{ 283 while (true) { 284 nsecs_t timeout = -1; 285 const nsecs_t freezeDisplayTimeout = ms2ns(5000); 286 if (UNLIKELY(isFrozen())) { 287 // wait 5 seconds 288 const nsecs_t now = systemTime(); 289 if (mFreezeDisplayTime == 0) { 290 mFreezeDisplayTime = now; 291 } 292 nsecs_t waitTime = freezeDisplayTimeout - (now - mFreezeDisplayTime); 293 timeout = waitTime>0 ? waitTime : 0; 294 } 295 296 sp<MessageBase> msg = mEventQueue.waitMessage(timeout); 297 298 // see if we timed out 299 if (isFrozen()) { 300 const nsecs_t now = systemTime(); 301 nsecs_t frozenTime = (now - mFreezeDisplayTime); 302 if (frozenTime >= freezeDisplayTimeout) { 303 // we timed out and are still frozen 304 LOGW("timeout expired mFreezeDisplay=%d, mFreezeCount=%d", 305 mFreezeDisplay, mFreezeCount); 306 mFreezeDisplayTime = 0; 307 mFreezeCount = 0; 308 mFreezeDisplay = false; 309 } 310 } 311 312 if (msg != 0) { 313 switch (msg->what) { 314 case MessageQueue::INVALIDATE: 315 // invalidate message, just return to the main loop 316 return; 317 } 318 } 319 } 320} 321 322void SurfaceFlinger::signalEvent() { 323 mEventQueue.invalidate(); 324} 325 326void SurfaceFlinger::signal() const { 327 // this is the IPC call 328 const_cast<SurfaceFlinger*>(this)->signalEvent(); 329} 330 331status_t SurfaceFlinger::postMessageAsync(const sp<MessageBase>& msg, 332 nsecs_t reltime, uint32_t flags) 333{ 334 return mEventQueue.postMessage(msg, reltime, flags); 335} 336 337status_t SurfaceFlinger::postMessageSync(const sp<MessageBase>& msg, 338 nsecs_t reltime, uint32_t flags) 339{ 340 status_t res = mEventQueue.postMessage(msg, reltime, flags); 341 if (res == NO_ERROR) { 342 msg->wait(); 343 } 344 return res; 345} 346 347// ---------------------------------------------------------------------------- 348#if 0 349#pragma mark - 350#pragma mark Main loop 351#endif 352 353bool SurfaceFlinger::threadLoop() 354{ 355 waitForEvent(); 356 357 // check for transactions 358 if (UNLIKELY(mConsoleSignals)) { 359 handleConsoleEvents(); 360 } 361 362 if (LIKELY(mTransactionCount == 0)) { 363 // if we're in a global transaction, don't do anything. 364 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 365 uint32_t transactionFlags = getTransactionFlags(mask); 366 if (LIKELY(transactionFlags)) { 367 handleTransaction(transactionFlags); 368 } 369 } 370 371 // post surfaces (if needed) 372 handlePageFlip(); 373 374 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 375 if (LIKELY(hw.canDraw() && !isFrozen())) { 376 // repaint the framebuffer (if needed) 377 378 const int index = hw.getCurrentBufferIndex(); 379 GraphicLog& logger(GraphicLog::getInstance()); 380 381 logger.log(GraphicLog::SF_REPAINT, index); 382 handleRepaint(); 383 384 // inform the h/w that we're done compositing 385 logger.log(GraphicLog::SF_COMPOSITION_COMPLETE, index); 386 hw.compositionComplete(); 387 388 // release the clients before we flip ('cause flip might block) 389 logger.log(GraphicLog::SF_UNLOCK_CLIENTS, index); 390 unlockClients(); 391 392 logger.log(GraphicLog::SF_SWAP_BUFFERS, index); 393 postFramebuffer(); 394 395 logger.log(GraphicLog::SF_REPAINT_DONE, index); 396 } else { 397 // pretend we did the post 398 unlockClients(); 399 usleep(16667); // 60 fps period 400 } 401 return true; 402} 403 404void SurfaceFlinger::postFramebuffer() 405{ 406 if (!mInvalidRegion.isEmpty()) { 407 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 408 const nsecs_t now = systemTime(); 409 mDebugInSwapBuffers = now; 410 hw.flip(mInvalidRegion); 411 mLastSwapBufferTime = systemTime() - now; 412 mDebugInSwapBuffers = 0; 413 mInvalidRegion.clear(); 414 } 415} 416 417void SurfaceFlinger::handleConsoleEvents() 418{ 419 // something to do with the console 420 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 421 422 int what = android_atomic_and(0, &mConsoleSignals); 423 if (what & eConsoleAcquired) { 424 hw.acquireScreen(); 425 // this is a temporary work-around, eventually this should be called 426 // by the power-manager 427 if (mElectronBeamAnimation) 428 SurfaceFlinger::turnElectronBeamOn(0); 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 // here the transaction has been committed 464 } 465 466 /* 467 * Clean-up all layers that went away 468 * (do this without the lock held) 469 */ 470 const size_t count = ditchedLayers.size(); 471 for (size_t i=0 ; i<count ; i++) { 472 if (ditchedLayers[i] != 0) { 473 //LOGD("ditching layer %p", ditchedLayers[i].get()); 474 ditchedLayers[i]->ditch(); 475 } 476 } 477} 478 479void SurfaceFlinger::handleTransactionLocked( 480 uint32_t transactionFlags, Vector< sp<LayerBase> >& ditchedLayers) 481{ 482 const LayerVector& currentLayers(mCurrentState.layersSortedByZ); 483 const size_t count = currentLayers.size(); 484 485 /* 486 * Traversal of the children 487 * (perform the transaction for each of them if needed) 488 */ 489 490 const bool layersNeedTransaction = transactionFlags & eTraversalNeeded; 491 if (layersNeedTransaction) { 492 for (size_t i=0 ; i<count ; i++) { 493 const sp<LayerBase>& layer = currentLayers[i]; 494 uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded); 495 if (!trFlags) continue; 496 497 const uint32_t flags = layer->doTransaction(0); 498 if (flags & Layer::eVisibleRegion) 499 mVisibleRegionsDirty = true; 500 } 501 } 502 503 /* 504 * Perform our own transaction if needed 505 */ 506 507 if (transactionFlags & eTransactionNeeded) { 508 if (mCurrentState.orientation != mDrawingState.orientation) { 509 // the orientation has changed, recompute all visible regions 510 // and invalidate everything. 511 512 const int dpy = 0; 513 const int orientation = mCurrentState.orientation; 514 const uint32_t type = mCurrentState.orientationType; 515 GraphicPlane& plane(graphicPlane(dpy)); 516 plane.setOrientation(orientation); 517 518 // update the shared control block 519 const DisplayHardware& hw(plane.displayHardware()); 520 volatile display_cblk_t* dcblk = mServerCblk->displays + dpy; 521 dcblk->orientation = orientation; 522 dcblk->w = plane.getWidth(); 523 dcblk->h = plane.getHeight(); 524 525 mVisibleRegionsDirty = true; 526 mDirtyRegion.set(hw.bounds()); 527 } 528 529 if (mCurrentState.freezeDisplay != mDrawingState.freezeDisplay) { 530 // freezing or unfreezing the display -> trigger animation if needed 531 mFreezeDisplay = mCurrentState.freezeDisplay; 532 if (mFreezeDisplay) 533 mFreezeDisplayTime = 0; 534 } 535 536 if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) { 537 // layers have been added 538 mVisibleRegionsDirty = true; 539 } 540 541 // some layers might have been removed, so 542 // we need to update the regions they're exposing. 543 if (mLayersRemoved) { 544 mLayersRemoved = false; 545 mVisibleRegionsDirty = true; 546 const LayerVector& previousLayers(mDrawingState.layersSortedByZ); 547 const size_t count = previousLayers.size(); 548 for (size_t i=0 ; i<count ; i++) { 549 const sp<LayerBase>& layer(previousLayers[i]); 550 if (currentLayers.indexOf( layer ) < 0) { 551 // this layer is not visible anymore 552 ditchedLayers.add(layer); 553 mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen); 554 } 555 } 556 } 557 } 558 559 commitTransaction(); 560} 561 562sp<FreezeLock> SurfaceFlinger::getFreezeLock() const 563{ 564 return new FreezeLock(const_cast<SurfaceFlinger *>(this)); 565} 566 567void SurfaceFlinger::computeVisibleRegions( 568 LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion) 569{ 570 const GraphicPlane& plane(graphicPlane(0)); 571 const Transform& planeTransform(plane.transform()); 572 const DisplayHardware& hw(plane.displayHardware()); 573 const Region screenRegion(hw.bounds()); 574 575 Region aboveOpaqueLayers; 576 Region aboveCoveredLayers; 577 Region dirty; 578 579 bool secureFrameBuffer = false; 580 581 size_t i = currentLayers.size(); 582 while (i--) { 583 const sp<LayerBase>& layer = currentLayers[i]; 584 layer->validateVisibility(planeTransform); 585 586 // start with the whole surface at its current location 587 const Layer::State& s(layer->drawingState()); 588 589 /* 590 * opaqueRegion: area of a surface that is fully opaque. 591 */ 592 Region opaqueRegion; 593 594 /* 595 * visibleRegion: area of a surface that is visible on screen 596 * and not fully transparent. This is essentially the layer's 597 * footprint minus the opaque regions above it. 598 * Areas covered by a translucent surface are considered visible. 599 */ 600 Region visibleRegion; 601 602 /* 603 * coveredRegion: area of a surface that is covered by all 604 * visible regions above it (which includes the translucent areas). 605 */ 606 Region coveredRegion; 607 608 609 // handle hidden surfaces by setting the visible region to empty 610 if (LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) { 611 const bool translucent = layer->needsBlending(); 612 const Rect bounds(layer->visibleBounds()); 613 visibleRegion.set(bounds); 614 visibleRegion.andSelf(screenRegion); 615 if (!visibleRegion.isEmpty()) { 616 // Remove the transparent area from the visible region 617 if (translucent) { 618 visibleRegion.subtractSelf(layer->transparentRegionScreen); 619 } 620 621 // compute the opaque region 622 const int32_t layerOrientation = layer->getOrientation(); 623 if (s.alpha==255 && !translucent && 624 ((layerOrientation & Transform::ROT_INVALID) == false)) { 625 // the opaque region is the layer's footprint 626 opaqueRegion = visibleRegion; 627 } 628 } 629 } 630 631 // Clip the covered region to the visible region 632 coveredRegion = aboveCoveredLayers.intersect(visibleRegion); 633 634 // Update aboveCoveredLayers for next (lower) layer 635 aboveCoveredLayers.orSelf(visibleRegion); 636 637 // subtract the opaque region covered by the layers above us 638 visibleRegion.subtractSelf(aboveOpaqueLayers); 639 640 // compute this layer's dirty region 641 if (layer->contentDirty) { 642 // we need to invalidate the whole region 643 dirty = visibleRegion; 644 // as well, as the old visible region 645 dirty.orSelf(layer->visibleRegionScreen); 646 layer->contentDirty = false; 647 } else { 648 /* compute the exposed region: 649 * the exposed region consists of two components: 650 * 1) what's VISIBLE now and was COVERED before 651 * 2) what's EXPOSED now less what was EXPOSED before 652 * 653 * note that (1) is conservative, we start with the whole 654 * visible region but only keep what used to be covered by 655 * something -- which mean it may have been exposed. 656 * 657 * (2) handles areas that were not covered by anything but got 658 * exposed because of a resize. 659 */ 660 const Region newExposed = visibleRegion - coveredRegion; 661 const Region oldVisibleRegion = layer->visibleRegionScreen; 662 const Region oldCoveredRegion = layer->coveredRegionScreen; 663 const Region oldExposed = oldVisibleRegion - oldCoveredRegion; 664 dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed); 665 } 666 dirty.subtractSelf(aboveOpaqueLayers); 667 668 // accumulate to the screen dirty region 669 dirtyRegion.orSelf(dirty); 670 671 // Update aboveOpaqueLayers for next (lower) layer 672 aboveOpaqueLayers.orSelf(opaqueRegion); 673 674 // Store the visible region is screen space 675 layer->setVisibleRegion(visibleRegion); 676 layer->setCoveredRegion(coveredRegion); 677 678 // If a secure layer is partially visible, lock-down the screen! 679 if (layer->isSecure() && !visibleRegion.isEmpty()) { 680 secureFrameBuffer = true; 681 } 682 } 683 684 // invalidate the areas where a layer was removed 685 dirtyRegion.orSelf(mDirtyRegionRemovedLayer); 686 mDirtyRegionRemovedLayer.clear(); 687 688 mSecureFrameBuffer = secureFrameBuffer; 689 opaqueRegion = aboveOpaqueLayers; 690} 691 692 693void SurfaceFlinger::commitTransaction() 694{ 695 mDrawingState = mCurrentState; 696 mResizeTransationPending = false; 697 mTransactionCV.broadcast(); 698} 699 700void SurfaceFlinger::handlePageFlip() 701{ 702 bool visibleRegions = mVisibleRegionsDirty; 703 LayerVector& currentLayers = const_cast<LayerVector&>( 704 mDrawingState.layersSortedByZ); 705 visibleRegions |= lockPageFlip(currentLayers); 706 707 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 708 const Region screenRegion(hw.bounds()); 709 if (visibleRegions) { 710 Region opaqueRegion; 711 computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion); 712 713 /* 714 * rebuild the visible layer list 715 */ 716 mVisibleLayersSortedByZ.clear(); 717 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 718 size_t count = currentLayers.size(); 719 mVisibleLayersSortedByZ.setCapacity(count); 720 for (size_t i=0 ; i<count ; i++) { 721 if (!currentLayers[i]->visibleRegionScreen.isEmpty()) 722 mVisibleLayersSortedByZ.add(currentLayers[i]); 723 } 724 725 mWormholeRegion = screenRegion.subtract(opaqueRegion); 726 mVisibleRegionsDirty = false; 727 } 728 729 unlockPageFlip(currentLayers); 730 mDirtyRegion.andSelf(screenRegion); 731} 732 733bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers) 734{ 735 bool recomputeVisibleRegions = false; 736 size_t count = currentLayers.size(); 737 sp<LayerBase> const* layers = currentLayers.array(); 738 for (size_t i=0 ; i<count ; i++) { 739 const sp<LayerBase>& layer(layers[i]); 740 layer->lockPageFlip(recomputeVisibleRegions); 741 } 742 return recomputeVisibleRegions; 743} 744 745void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers) 746{ 747 const GraphicPlane& plane(graphicPlane(0)); 748 const Transform& planeTransform(plane.transform()); 749 size_t count = currentLayers.size(); 750 sp<LayerBase> const* layers = currentLayers.array(); 751 for (size_t i=0 ; i<count ; i++) { 752 const sp<LayerBase>& layer(layers[i]); 753 layer->unlockPageFlip(planeTransform, mDirtyRegion); 754 } 755} 756 757 758void SurfaceFlinger::handleRepaint() 759{ 760 // compute the invalid region 761 mInvalidRegion.orSelf(mDirtyRegion); 762 if (mInvalidRegion.isEmpty()) { 763 // nothing to do 764 return; 765 } 766 767 if (UNLIKELY(mDebugRegion)) { 768 debugFlashRegions(); 769 } 770 771 // set the frame buffer 772 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 773 glMatrixMode(GL_MODELVIEW); 774 glLoadIdentity(); 775 776 uint32_t flags = hw.getFlags(); 777 if ((flags & DisplayHardware::SWAP_RECTANGLE) || 778 (flags & DisplayHardware::BUFFER_PRESERVED)) 779 { 780 // we can redraw only what's dirty, but since SWAP_RECTANGLE only 781 // takes a rectangle, we must make sure to update that whole 782 // rectangle in that case 783 if (flags & DisplayHardware::SWAP_RECTANGLE) { 784 // TODO: we really should be able to pass a region to 785 // SWAP_RECTANGLE so that we don't have to redraw all this. 786 mDirtyRegion.set(mInvalidRegion.bounds()); 787 } else { 788 // in the BUFFER_PRESERVED case, obviously, we can update only 789 // what's needed and nothing more. 790 // NOTE: this is NOT a common case, as preserving the backbuffer 791 // is costly and usually involves copying the whole update back. 792 } 793 } else { 794 if (flags & DisplayHardware::PARTIAL_UPDATES) { 795 // We need to redraw the rectangle that will be updated 796 // (pushed to the framebuffer). 797 // This is needed because PARTIAL_UPDATES only takes one 798 // rectangle instead of a region (see DisplayHardware::flip()) 799 mDirtyRegion.set(mInvalidRegion.bounds()); 800 } else { 801 // we need to redraw everything (the whole screen) 802 mDirtyRegion.set(hw.bounds()); 803 mInvalidRegion = mDirtyRegion; 804 } 805 } 806 807 // compose all surfaces 808 composeSurfaces(mDirtyRegion); 809 810 // clear the dirty regions 811 mDirtyRegion.clear(); 812} 813 814void SurfaceFlinger::composeSurfaces(const Region& dirty) 815{ 816 if (UNLIKELY(!mWormholeRegion.isEmpty())) { 817 // should never happen unless the window manager has a bug 818 // draw something... 819 drawWormhole(); 820 } 821 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 822 const size_t count = layers.size(); 823 for (size_t i=0 ; i<count ; ++i) { 824 const sp<LayerBase>& layer(layers[i]); 825 const Region clip(dirty.intersect(layer->visibleRegionScreen)); 826 if (!clip.isEmpty()) { 827 layer->draw(clip); 828 } 829 } 830} 831 832void SurfaceFlinger::unlockClients() 833{ 834 const LayerVector& drawingLayers(mDrawingState.layersSortedByZ); 835 const size_t count = drawingLayers.size(); 836 sp<LayerBase> const* const layers = drawingLayers.array(); 837 for (size_t i=0 ; i<count ; ++i) { 838 const sp<LayerBase>& layer = layers[i]; 839 layer->finishPageFlip(); 840 } 841} 842 843void SurfaceFlinger::debugFlashRegions() 844{ 845 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 846 const uint32_t flags = hw.getFlags(); 847 848 if (!((flags & DisplayHardware::SWAP_RECTANGLE) || 849 (flags & DisplayHardware::BUFFER_PRESERVED))) { 850 const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ? 851 mDirtyRegion.bounds() : hw.bounds()); 852 composeSurfaces(repaint); 853 } 854 855 TextureManager::deactivateTextures(); 856 857 glDisable(GL_BLEND); 858 glDisable(GL_DITHER); 859 glDisable(GL_SCISSOR_TEST); 860 861 static int toggle = 0; 862 toggle = 1 - toggle; 863 if (toggle) { 864 glColor4f(1, 0, 1, 1); 865 } else { 866 glColor4f(1, 1, 0, 1); 867 } 868 869 Region::const_iterator it = mDirtyRegion.begin(); 870 Region::const_iterator const end = mDirtyRegion.end(); 871 while (it != end) { 872 const Rect& r = *it++; 873 GLfloat vertices[][2] = { 874 { r.left, r.top }, 875 { r.left, r.bottom }, 876 { r.right, r.bottom }, 877 { r.right, r.top } 878 }; 879 glVertexPointer(2, GL_FLOAT, 0, vertices); 880 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 881 } 882 883 if (mInvalidRegion.isEmpty()) { 884 mDirtyRegion.dump("mDirtyRegion"); 885 mInvalidRegion.dump("mInvalidRegion"); 886 } 887 hw.flip(mInvalidRegion); 888 889 if (mDebugRegion > 1) 890 usleep(mDebugRegion * 1000); 891 892 glEnable(GL_SCISSOR_TEST); 893 //mDirtyRegion.dump("mDirtyRegion"); 894} 895 896void SurfaceFlinger::drawWormhole() const 897{ 898 const Region region(mWormholeRegion.intersect(mDirtyRegion)); 899 if (region.isEmpty()) 900 return; 901 902 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 903 const int32_t width = hw.getWidth(); 904 const int32_t height = hw.getHeight(); 905 906 glDisable(GL_BLEND); 907 glDisable(GL_DITHER); 908 909 if (LIKELY(!mDebugBackground)) { 910 glClearColor(0,0,0,0); 911 Region::const_iterator it = region.begin(); 912 Region::const_iterator const end = region.end(); 913 while (it != end) { 914 const Rect& r = *it++; 915 const GLint sy = height - (r.top + r.height()); 916 glScissor(r.left, sy, r.width(), r.height()); 917 glClear(GL_COLOR_BUFFER_BIT); 918 } 919 } else { 920 const GLshort vertices[][2] = { { 0, 0 }, { width, 0 }, 921 { width, height }, { 0, height } }; 922 const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } }; 923 glVertexPointer(2, GL_SHORT, 0, vertices); 924 glTexCoordPointer(2, GL_SHORT, 0, tcoords); 925 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 926#if defined(GL_OES_EGL_image_external) 927 if (GLExtensions::getInstance().haveTextureExternal()) { 928 glDisable(GL_TEXTURE_EXTERNAL_OES); 929 } 930#endif 931 glEnable(GL_TEXTURE_2D); 932 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 933 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 934 glMatrixMode(GL_TEXTURE); 935 glLoadIdentity(); 936 glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1); 937 Region::const_iterator it = region.begin(); 938 Region::const_iterator const end = region.end(); 939 while (it != end) { 940 const Rect& r = *it++; 941 const GLint sy = height - (r.top + r.height()); 942 glScissor(r.left, sy, r.width(), r.height()); 943 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 944 } 945 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 946 } 947} 948 949void SurfaceFlinger::debugShowFPS() const 950{ 951 static int mFrameCount; 952 static int mLastFrameCount = 0; 953 static nsecs_t mLastFpsTime = 0; 954 static float mFps = 0; 955 mFrameCount++; 956 nsecs_t now = systemTime(); 957 nsecs_t diff = now - mLastFpsTime; 958 if (diff > ms2ns(250)) { 959 mFps = ((mFrameCount - mLastFrameCount) * float(s2ns(1))) / diff; 960 mLastFpsTime = now; 961 mLastFrameCount = mFrameCount; 962 } 963 // XXX: mFPS has the value we want 964 } 965 966status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer) 967{ 968 Mutex::Autolock _l(mStateLock); 969 addLayer_l(layer); 970 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 971 return NO_ERROR; 972} 973 974status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer) 975{ 976 ssize_t i = mCurrentState.layersSortedByZ.add(layer); 977 return (i < 0) ? status_t(i) : status_t(NO_ERROR); 978} 979 980ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client, 981 const sp<LayerBaseClient>& lbc) 982{ 983 Mutex::Autolock _l(mStateLock); 984 985 // attach this layer to the client 986 ssize_t name = client->attachLayer(lbc); 987 988 // add this layer to the current state list 989 addLayer_l(lbc); 990 991 return name; 992} 993 994status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer) 995{ 996 Mutex::Autolock _l(mStateLock); 997 status_t err = purgatorizeLayer_l(layer); 998 if (err == NO_ERROR) 999 setTransactionFlags(eTransactionNeeded); 1000 return err; 1001} 1002 1003status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase) 1004{ 1005 sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient()); 1006 if (lbc != 0) { 1007 mLayerMap.removeItem( lbc->getSurface()->asBinder() ); 1008 } 1009 ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase); 1010 if (index >= 0) { 1011 mLayersRemoved = true; 1012 return NO_ERROR; 1013 } 1014 return status_t(index); 1015} 1016 1017status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase) 1018{ 1019 // remove the layer from the main list (through a transaction). 1020 ssize_t err = removeLayer_l(layerBase); 1021 1022 layerBase->onRemoved(); 1023 1024 // it's possible that we don't find a layer, because it might 1025 // have been destroyed already -- this is not technically an error 1026 // from the user because there is a race between Client::destroySurface(), 1027 // ~Client() and ~ISurface(). 1028 return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err; 1029} 1030 1031status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer) 1032{ 1033 layer->forceVisibilityTransaction(); 1034 setTransactionFlags(eTraversalNeeded); 1035 return NO_ERROR; 1036} 1037 1038uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags) 1039{ 1040 return android_atomic_and(~flags, &mTransactionFlags) & flags; 1041} 1042 1043uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags) 1044{ 1045 uint32_t old = android_atomic_or(flags, &mTransactionFlags); 1046 if ((old & flags)==0) { // wake the server up 1047 signalEvent(); 1048 } 1049 return old; 1050} 1051 1052void SurfaceFlinger::openGlobalTransaction() 1053{ 1054 android_atomic_inc(&mTransactionCount); 1055} 1056 1057void SurfaceFlinger::closeGlobalTransaction() 1058{ 1059 if (android_atomic_dec(&mTransactionCount) == 1) { 1060 signalEvent(); 1061 1062 // if there is a transaction with a resize, wait for it to 1063 // take effect before returning. 1064 Mutex::Autolock _l(mStateLock); 1065 while (mResizeTransationPending) { 1066 status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5)); 1067 if (CC_UNLIKELY(err != NO_ERROR)) { 1068 // just in case something goes wrong in SF, return to the 1069 // called after a few seconds. 1070 LOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!"); 1071 mResizeTransationPending = false; 1072 break; 1073 } 1074 } 1075 } 1076} 1077 1078status_t SurfaceFlinger::freezeDisplay(DisplayID dpy, uint32_t flags) 1079{ 1080 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1081 return BAD_VALUE; 1082 1083 Mutex::Autolock _l(mStateLock); 1084 mCurrentState.freezeDisplay = 1; 1085 setTransactionFlags(eTransactionNeeded); 1086 1087 // flags is intended to communicate some sort of animation behavior 1088 // (for instance fading) 1089 return NO_ERROR; 1090} 1091 1092status_t SurfaceFlinger::unfreezeDisplay(DisplayID dpy, uint32_t flags) 1093{ 1094 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1095 return BAD_VALUE; 1096 1097 Mutex::Autolock _l(mStateLock); 1098 mCurrentState.freezeDisplay = 0; 1099 setTransactionFlags(eTransactionNeeded); 1100 1101 // flags is intended to communicate some sort of animation behavior 1102 // (for instance fading) 1103 return NO_ERROR; 1104} 1105 1106int SurfaceFlinger::setOrientation(DisplayID dpy, 1107 int orientation, uint32_t flags) 1108{ 1109 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1110 return BAD_VALUE; 1111 1112 Mutex::Autolock _l(mStateLock); 1113 if (mCurrentState.orientation != orientation) { 1114 if (uint32_t(orientation)<=eOrientation270 || orientation==42) { 1115 mCurrentState.orientationType = flags; 1116 mCurrentState.orientation = orientation; 1117 setTransactionFlags(eTransactionNeeded); 1118 mTransactionCV.wait(mStateLock); 1119 } else { 1120 orientation = BAD_VALUE; 1121 } 1122 } 1123 return orientation; 1124} 1125 1126sp<ISurface> SurfaceFlinger::createSurface(const sp<Client>& client, int pid, 1127 const String8& name, ISurfaceComposerClient::surface_data_t* params, 1128 DisplayID d, uint32_t w, uint32_t h, PixelFormat format, 1129 uint32_t flags) 1130{ 1131 sp<LayerBaseClient> layer; 1132 sp<LayerBaseClient::Surface> surfaceHandle; 1133 1134 if (int32_t(w|h) < 0) { 1135 LOGE("createSurface() failed, w or h is negative (w=%d, h=%d)", 1136 int(w), int(h)); 1137 return surfaceHandle; 1138 } 1139 1140 //LOGD("createSurface for pid %d (%d x %d)", pid, w, h); 1141 sp<Layer> normalLayer; 1142 switch (flags & eFXSurfaceMask) { 1143 case eFXSurfaceNormal: 1144 if (UNLIKELY(flags & ePushBuffers)) { 1145 layer = createPushBuffersSurface(client, d, w, h, flags); 1146 } else { 1147 normalLayer = createNormalSurface(client, d, w, h, flags, format); 1148 layer = normalLayer; 1149 } 1150 break; 1151 case eFXSurfaceBlur: 1152 layer = createBlurSurface(client, d, w, h, flags); 1153 break; 1154 case eFXSurfaceDim: 1155 layer = createDimSurface(client, d, w, h, flags); 1156 break; 1157 } 1158 1159 if (layer != 0) { 1160 layer->initStates(w, h, flags); 1161 layer->setName(name); 1162 ssize_t token = addClientLayer(client, layer); 1163 1164 surfaceHandle = layer->getSurface(); 1165 if (surfaceHandle != 0) { 1166 params->token = token; 1167 params->identity = surfaceHandle->getIdentity(); 1168 params->width = w; 1169 params->height = h; 1170 params->format = format; 1171 if (normalLayer != 0) { 1172 Mutex::Autolock _l(mStateLock); 1173 mLayerMap.add(surfaceHandle->asBinder(), normalLayer); 1174 } 1175 } 1176 1177 setTransactionFlags(eTransactionNeeded); 1178 } 1179 1180 return surfaceHandle; 1181} 1182 1183sp<Layer> SurfaceFlinger::createNormalSurface( 1184 const sp<Client>& client, DisplayID display, 1185 uint32_t w, uint32_t h, uint32_t flags, 1186 PixelFormat& format) 1187{ 1188 // initialize the surfaces 1189 switch (format) { // TODO: take h/w into account 1190 case PIXEL_FORMAT_TRANSPARENT: 1191 case PIXEL_FORMAT_TRANSLUCENT: 1192 format = PIXEL_FORMAT_RGBA_8888; 1193 break; 1194 case PIXEL_FORMAT_OPAQUE: 1195#ifdef NO_RGBX_8888 1196 format = PIXEL_FORMAT_RGB_565; 1197#else 1198 format = PIXEL_FORMAT_RGBX_8888; 1199#endif 1200 break; 1201 } 1202 1203#ifdef NO_RGBX_8888 1204 if (format == PIXEL_FORMAT_RGBX_8888) 1205 format = PIXEL_FORMAT_RGBA_8888; 1206#endif 1207 1208 sp<Layer> layer = new Layer(this, display, client); 1209 status_t err = layer->setBuffers(w, h, format, flags); 1210 if (LIKELY(err != NO_ERROR)) { 1211 LOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err)); 1212 layer.clear(); 1213 } 1214 return layer; 1215} 1216 1217sp<LayerBlur> SurfaceFlinger::createBlurSurface( 1218 const sp<Client>& client, DisplayID display, 1219 uint32_t w, uint32_t h, uint32_t flags) 1220{ 1221 sp<LayerBlur> layer = new LayerBlur(this, display, client); 1222 layer->initStates(w, h, flags); 1223 return layer; 1224} 1225 1226sp<LayerDim> SurfaceFlinger::createDimSurface( 1227 const sp<Client>& client, DisplayID display, 1228 uint32_t w, uint32_t h, uint32_t flags) 1229{ 1230 sp<LayerDim> layer = new LayerDim(this, display, client); 1231 layer->initStates(w, h, flags); 1232 return layer; 1233} 1234 1235sp<LayerBuffer> SurfaceFlinger::createPushBuffersSurface( 1236 const sp<Client>& client, DisplayID display, 1237 uint32_t w, uint32_t h, uint32_t flags) 1238{ 1239 sp<LayerBuffer> layer = new LayerBuffer(this, display, client); 1240 layer->initStates(w, h, flags); 1241 return layer; 1242} 1243 1244status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid) 1245{ 1246 /* 1247 * called by the window manager, when a surface should be marked for 1248 * destruction. 1249 * 1250 * The surface is removed from the current and drawing lists, but placed 1251 * in the purgatory queue, so it's not destroyed right-away (we need 1252 * to wait for all client's references to go away first). 1253 */ 1254 1255 status_t err = NAME_NOT_FOUND; 1256 Mutex::Autolock _l(mStateLock); 1257 sp<LayerBaseClient> layer = client->getLayerUser(sid); 1258 if (layer != 0) { 1259 err = purgatorizeLayer_l(layer); 1260 if (err == NO_ERROR) { 1261 setTransactionFlags(eTransactionNeeded); 1262 } 1263 } 1264 return err; 1265} 1266 1267status_t SurfaceFlinger::destroySurface(const sp<LayerBaseClient>& layer) 1268{ 1269 // called by ~ISurface() when all references are gone 1270 1271 class MessageDestroySurface : public MessageBase { 1272 SurfaceFlinger* flinger; 1273 sp<LayerBaseClient> layer; 1274 public: 1275 MessageDestroySurface( 1276 SurfaceFlinger* flinger, const sp<LayerBaseClient>& layer) 1277 : flinger(flinger), layer(layer) { } 1278 virtual bool handler() { 1279 sp<LayerBaseClient> l(layer); 1280 layer.clear(); // clear it outside of the lock; 1281 Mutex::Autolock _l(flinger->mStateLock); 1282 /* 1283 * remove the layer from the current list -- chances are that it's 1284 * not in the list anyway, because it should have been removed 1285 * already upon request of the client (eg: window manager). 1286 * However, a buggy client could have not done that. 1287 * Since we know we don't have any more clients, we don't need 1288 * to use the purgatory. 1289 */ 1290 status_t err = flinger->removeLayer_l(l); 1291 LOGE_IF(err<0 && err != NAME_NOT_FOUND, 1292 "error removing layer=%p (%s)", l.get(), strerror(-err)); 1293 return true; 1294 } 1295 }; 1296 1297 postMessageAsync( new MessageDestroySurface(this, layer) ); 1298 return NO_ERROR; 1299} 1300 1301status_t SurfaceFlinger::setClientState( 1302 const sp<Client>& client, 1303 int32_t count, 1304 const layer_state_t* states) 1305{ 1306 Mutex::Autolock _l(mStateLock); 1307 uint32_t flags = 0; 1308 for (int i=0 ; i<count ; i++) { 1309 const layer_state_t& s(states[i]); 1310 sp<LayerBaseClient> layer(client->getLayerUser(s.surface)); 1311 if (layer != 0) { 1312 const uint32_t what = s.what; 1313 if (what & ePositionChanged) { 1314 if (layer->setPosition(s.x, s.y)) 1315 flags |= eTraversalNeeded; 1316 } 1317 if (what & eLayerChanged) { 1318 ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer); 1319 if (layer->setLayer(s.z)) { 1320 mCurrentState.layersSortedByZ.removeAt(idx); 1321 mCurrentState.layersSortedByZ.add(layer); 1322 // we need traversal (state changed) 1323 // AND transaction (list changed) 1324 flags |= eTransactionNeeded|eTraversalNeeded; 1325 } 1326 } 1327 if (what & eSizeChanged) { 1328 if (layer->setSize(s.w, s.h)) { 1329 flags |= eTraversalNeeded; 1330 mResizeTransationPending = true; 1331 } 1332 } 1333 if (what & eAlphaChanged) { 1334 if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f))) 1335 flags |= eTraversalNeeded; 1336 } 1337 if (what & eMatrixChanged) { 1338 if (layer->setMatrix(s.matrix)) 1339 flags |= eTraversalNeeded; 1340 } 1341 if (what & eTransparentRegionChanged) { 1342 if (layer->setTransparentRegionHint(s.transparentRegion)) 1343 flags |= eTraversalNeeded; 1344 } 1345 if (what & eVisibilityChanged) { 1346 if (layer->setFlags(s.flags, s.mask)) 1347 flags |= eTraversalNeeded; 1348 } 1349 } 1350 } 1351 if (flags) { 1352 setTransactionFlags(flags); 1353 } 1354 return NO_ERROR; 1355} 1356 1357void SurfaceFlinger::screenReleased(int dpy) 1358{ 1359 // this may be called by a signal handler, we can't do too much in here 1360 android_atomic_or(eConsoleReleased, &mConsoleSignals); 1361 signalEvent(); 1362} 1363 1364void SurfaceFlinger::screenAcquired(int dpy) 1365{ 1366 // this may be called by a signal handler, we can't do too much in here 1367 android_atomic_or(eConsoleAcquired, &mConsoleSignals); 1368 signalEvent(); 1369} 1370 1371status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args) 1372{ 1373 const size_t SIZE = 1024; 1374 char buffer[SIZE]; 1375 String8 result; 1376 if (!mDump.checkCalling()) { 1377 snprintf(buffer, SIZE, "Permission Denial: " 1378 "can't dump SurfaceFlinger from pid=%d, uid=%d\n", 1379 IPCThreadState::self()->getCallingPid(), 1380 IPCThreadState::self()->getCallingUid()); 1381 result.append(buffer); 1382 } else { 1383 1384 // figure out if we're stuck somewhere 1385 const nsecs_t now = systemTime(); 1386 const nsecs_t inSwapBuffers(mDebugInSwapBuffers); 1387 const nsecs_t inTransaction(mDebugInTransaction); 1388 nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0; 1389 nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0; 1390 1391 // Try to get the main lock, but don't insist if we can't 1392 // (this would indicate SF is stuck, but we want to be able to 1393 // print something in dumpsys). 1394 int retry = 3; 1395 while (mStateLock.tryLock()<0 && --retry>=0) { 1396 usleep(1000000); 1397 } 1398 const bool locked(retry >= 0); 1399 if (!locked) { 1400 snprintf(buffer, SIZE, 1401 "SurfaceFlinger appears to be unresponsive, " 1402 "dumping anyways (no locks held)\n"); 1403 result.append(buffer); 1404 } 1405 1406 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1407 const size_t count = currentLayers.size(); 1408 for (size_t i=0 ; i<count ; i++) { 1409 const sp<LayerBase>& layer(currentLayers[i]); 1410 layer->dump(result, buffer, SIZE); 1411 const Layer::State& s(layer->drawingState()); 1412 s.transparentRegion.dump(result, "transparentRegion"); 1413 layer->transparentRegionScreen.dump(result, "transparentRegionScreen"); 1414 layer->visibleRegionScreen.dump(result, "visibleRegionScreen"); 1415 } 1416 1417 mWormholeRegion.dump(result, "WormholeRegion"); 1418 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1419 snprintf(buffer, SIZE, 1420 " display frozen: %s, freezeCount=%d, orientation=%d, canDraw=%d\n", 1421 mFreezeDisplay?"yes":"no", mFreezeCount, 1422 mCurrentState.orientation, hw.canDraw()); 1423 result.append(buffer); 1424 snprintf(buffer, SIZE, 1425 " last eglSwapBuffers() time: %f us\n" 1426 " last transaction time : %f us\n", 1427 mLastSwapBufferTime/1000.0, mLastTransactionTime/1000.0); 1428 result.append(buffer); 1429 1430 if (inSwapBuffersDuration || !locked) { 1431 snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n", 1432 inSwapBuffersDuration/1000.0); 1433 result.append(buffer); 1434 } 1435 1436 if (inTransactionDuration || !locked) { 1437 snprintf(buffer, SIZE, " transaction time: %f us\n", 1438 inTransactionDuration/1000.0); 1439 result.append(buffer); 1440 } 1441 1442 const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get()); 1443 alloc.dump(result); 1444 1445 if (locked) { 1446 mStateLock.unlock(); 1447 } 1448 } 1449 write(fd, result.string(), result.size()); 1450 return NO_ERROR; 1451} 1452 1453status_t SurfaceFlinger::onTransact( 1454 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1455{ 1456 switch (code) { 1457 case CREATE_CONNECTION: 1458 case OPEN_GLOBAL_TRANSACTION: 1459 case CLOSE_GLOBAL_TRANSACTION: 1460 case SET_ORIENTATION: 1461 case FREEZE_DISPLAY: 1462 case UNFREEZE_DISPLAY: 1463 case BOOT_FINISHED: 1464 case TURN_ELECTRON_BEAM_OFF: 1465 case TURN_ELECTRON_BEAM_ON: 1466 { 1467 // codes that require permission check 1468 IPCThreadState* ipc = IPCThreadState::self(); 1469 const int pid = ipc->getCallingPid(); 1470 const int uid = ipc->getCallingUid(); 1471 if ((uid != AID_GRAPHICS) && !mAccessSurfaceFlinger.check(pid, uid)) { 1472 LOGE("Permission Denial: " 1473 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1474 return PERMISSION_DENIED; 1475 } 1476 break; 1477 } 1478 case CAPTURE_SCREEN: 1479 { 1480 // codes that require permission check 1481 IPCThreadState* ipc = IPCThreadState::self(); 1482 const int pid = ipc->getCallingPid(); 1483 const int uid = ipc->getCallingUid(); 1484 if ((uid != AID_GRAPHICS) && !mReadFramebuffer.check(pid, uid)) { 1485 LOGE("Permission Denial: " 1486 "can't read framebuffer pid=%d, uid=%d", pid, uid); 1487 return PERMISSION_DENIED; 1488 } 1489 break; 1490 } 1491 } 1492 1493 status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags); 1494 if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) { 1495 CHECK_INTERFACE(ISurfaceComposer, data, reply); 1496 if (UNLIKELY(!mHardwareTest.checkCalling())) { 1497 IPCThreadState* ipc = IPCThreadState::self(); 1498 const int pid = ipc->getCallingPid(); 1499 const int uid = ipc->getCallingUid(); 1500 LOGE("Permission Denial: " 1501 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1502 return PERMISSION_DENIED; 1503 } 1504 int n; 1505 switch (code) { 1506 case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE 1507 case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE 1508 return NO_ERROR; 1509 case 1002: // SHOW_UPDATES 1510 n = data.readInt32(); 1511 mDebugRegion = n ? n : (mDebugRegion ? 0 : 1); 1512 return NO_ERROR; 1513 case 1003: // SHOW_BACKGROUND 1514 n = data.readInt32(); 1515 mDebugBackground = n ? 1 : 0; 1516 return NO_ERROR; 1517 case 1004:{ // repaint everything 1518 Mutex::Autolock _l(mStateLock); 1519 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1520 mDirtyRegion.set(hw.bounds()); // careful that's not thread-safe 1521 signalEvent(); 1522 return NO_ERROR; 1523 } 1524 case 1005:{ // force transaction 1525 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1526 return NO_ERROR; 1527 } 1528 case 1006:{ // enable/disable GraphicLog 1529 int enabled = data.readInt32(); 1530 GraphicLog::getInstance().setEnabled(enabled); 1531 return NO_ERROR; 1532 } 1533 case 1007: // set mFreezeCount 1534 mFreezeCount = data.readInt32(); 1535 mFreezeDisplayTime = 0; 1536 return NO_ERROR; 1537 case 1010: // interrogate. 1538 reply->writeInt32(0); 1539 reply->writeInt32(0); 1540 reply->writeInt32(mDebugRegion); 1541 reply->writeInt32(mDebugBackground); 1542 return NO_ERROR; 1543 case 1013: { 1544 Mutex::Autolock _l(mStateLock); 1545 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1546 reply->writeInt32(hw.getPageFlipCount()); 1547 } 1548 return NO_ERROR; 1549 } 1550 } 1551 return err; 1552} 1553 1554// --------------------------------------------------------------------------- 1555 1556status_t SurfaceFlinger::renderScreenToTextureLocked(DisplayID dpy, 1557 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1558{ 1559 if (!GLExtensions::getInstance().haveFramebufferObject()) 1560 return INVALID_OPERATION; 1561 1562 // get screen geometry 1563 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 1564 const uint32_t hw_w = hw.getWidth(); 1565 const uint32_t hw_h = hw.getHeight(); 1566 GLfloat u = 1; 1567 GLfloat v = 1; 1568 1569 // make sure to clear all GL error flags 1570 while ( glGetError() != GL_NO_ERROR ) ; 1571 1572 // create a FBO 1573 GLuint name, tname; 1574 glGenTextures(1, &tname); 1575 glBindTexture(GL_TEXTURE_2D, tname); 1576 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1577 hw_w, hw_h, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1578 if (glGetError() != GL_NO_ERROR) { 1579 GLint tw = (2 << (31 - clz(hw_w))); 1580 GLint th = (2 << (31 - clz(hw_h))); 1581 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1582 tw, th, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1583 u = GLfloat(hw_w) / tw; 1584 v = GLfloat(hw_h) / th; 1585 } 1586 glGenFramebuffersOES(1, &name); 1587 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 1588 glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, 1589 GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0); 1590 1591 // redraw the screen entirely... 1592 glClearColor(0,0,0,1); 1593 glClear(GL_COLOR_BUFFER_BIT); 1594 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1595 const size_t count = layers.size(); 1596 for (size_t i=0 ; i<count ; ++i) { 1597 const sp<LayerBase>& layer(layers[i]); 1598 layer->drawForSreenShot(); 1599 } 1600 1601 // back to main framebuffer 1602 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1603 glDisable(GL_SCISSOR_TEST); 1604 glDeleteFramebuffersOES(1, &name); 1605 1606 *textureName = tname; 1607 *uOut = u; 1608 *vOut = v; 1609 return NO_ERROR; 1610} 1611 1612// --------------------------------------------------------------------------- 1613 1614status_t SurfaceFlinger::electronBeamOffAnimationImplLocked() 1615{ 1616 status_t result = PERMISSION_DENIED; 1617 1618 if (!GLExtensions::getInstance().haveFramebufferObject()) 1619 return INVALID_OPERATION; 1620 1621 // get screen geometry 1622 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1623 const uint32_t hw_w = hw.getWidth(); 1624 const uint32_t hw_h = hw.getHeight(); 1625 const Region screenBounds(hw.bounds()); 1626 1627 GLfloat u, v; 1628 GLuint tname; 1629 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1630 if (result != NO_ERROR) { 1631 return result; 1632 } 1633 1634 GLfloat vtx[8]; 1635 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1636 glEnable(GL_TEXTURE_2D); 1637 glBindTexture(GL_TEXTURE_2D, tname); 1638 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1639 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1640 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1641 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1642 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1643 glVertexPointer(2, GL_FLOAT, 0, vtx); 1644 1645 class s_curve_interpolator { 1646 const float nbFrames, s, v; 1647 public: 1648 s_curve_interpolator(int nbFrames, float s) 1649 : nbFrames(1.0f / (nbFrames-1)), s(s), 1650 v(1.0f + expf(-s + 0.5f*s)) { 1651 } 1652 float operator()(int f) { 1653 const float x = f * nbFrames; 1654 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1655 } 1656 }; 1657 1658 class v_stretch { 1659 const GLfloat hw_w, hw_h; 1660 public: 1661 v_stretch(uint32_t hw_w, uint32_t hw_h) 1662 : hw_w(hw_w), hw_h(hw_h) { 1663 } 1664 void operator()(GLfloat* vtx, float v) { 1665 const GLfloat w = hw_w + (hw_w * v); 1666 const GLfloat h = hw_h - (hw_h * v); 1667 const GLfloat x = (hw_w - w) * 0.5f; 1668 const GLfloat y = (hw_h - h) * 0.5f; 1669 vtx[0] = x; vtx[1] = y; 1670 vtx[2] = x; vtx[3] = y + h; 1671 vtx[4] = x + w; vtx[5] = y + h; 1672 vtx[6] = x + w; vtx[7] = y; 1673 } 1674 }; 1675 1676 class h_stretch { 1677 const GLfloat hw_w, hw_h; 1678 public: 1679 h_stretch(uint32_t hw_w, uint32_t hw_h) 1680 : hw_w(hw_w), hw_h(hw_h) { 1681 } 1682 void operator()(GLfloat* vtx, float v) { 1683 const GLfloat w = hw_w - (hw_w * v); 1684 const GLfloat h = 1.0f; 1685 const GLfloat x = (hw_w - w) * 0.5f; 1686 const GLfloat y = (hw_h - h) * 0.5f; 1687 vtx[0] = x; vtx[1] = y; 1688 vtx[2] = x; vtx[3] = y + h; 1689 vtx[4] = x + w; vtx[5] = y + h; 1690 vtx[6] = x + w; vtx[7] = y; 1691 } 1692 }; 1693 1694 // the full animation is 24 frames 1695 const int nbFrames = 12; 1696 s_curve_interpolator itr(nbFrames, 7.5f); 1697 s_curve_interpolator itg(nbFrames, 8.0f); 1698 s_curve_interpolator itb(nbFrames, 8.5f); 1699 1700 v_stretch vverts(hw_w, hw_h); 1701 glEnable(GL_BLEND); 1702 glBlendFunc(GL_ONE, GL_ONE); 1703 for (int i=0 ; i<nbFrames ; i++) { 1704 float x, y, w, h; 1705 const float vr = itr(i); 1706 const float vg = itg(i); 1707 const float vb = itb(i); 1708 1709 // clear screen 1710 glColorMask(1,1,1,1); 1711 glClear(GL_COLOR_BUFFER_BIT); 1712 glEnable(GL_TEXTURE_2D); 1713 1714 // draw the red plane 1715 vverts(vtx, vr); 1716 glColorMask(1,0,0,1); 1717 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1718 1719 // draw the green plane 1720 vverts(vtx, vg); 1721 glColorMask(0,1,0,1); 1722 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1723 1724 // draw the blue plane 1725 vverts(vtx, vb); 1726 glColorMask(0,0,1,1); 1727 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1728 1729 // draw the white highlight (we use the last vertices) 1730 glDisable(GL_TEXTURE_2D); 1731 glColorMask(1,1,1,1); 1732 glColor4f(vg, vg, vg, 1); 1733 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1734 hw.flip(screenBounds); 1735 } 1736 1737 h_stretch hverts(hw_w, hw_h); 1738 glDisable(GL_BLEND); 1739 glDisable(GL_TEXTURE_2D); 1740 glColorMask(1,1,1,1); 1741 for (int i=0 ; i<nbFrames ; i++) { 1742 const float v = itg(i); 1743 hverts(vtx, v); 1744 glClear(GL_COLOR_BUFFER_BIT); 1745 glColor4f(1-v, 1-v, 1-v, 1); 1746 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1747 hw.flip(screenBounds); 1748 } 1749 1750 glColorMask(1,1,1,1); 1751 glEnable(GL_SCISSOR_TEST); 1752 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1753 glDeleteTextures(1, &tname); 1754 return NO_ERROR; 1755} 1756 1757status_t SurfaceFlinger::electronBeamOnAnimationImplLocked() 1758{ 1759 status_t result = PERMISSION_DENIED; 1760 1761 if (!GLExtensions::getInstance().haveFramebufferObject()) 1762 return INVALID_OPERATION; 1763 1764 1765 // get screen geometry 1766 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1767 const uint32_t hw_w = hw.getWidth(); 1768 const uint32_t hw_h = hw.getHeight(); 1769 const Region screenBounds(hw.bounds()); 1770 1771 GLfloat u, v; 1772 GLuint tname; 1773 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1774 if (result != NO_ERROR) { 1775 return result; 1776 } 1777 1778 // back to main framebuffer 1779 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1780 glDisable(GL_SCISSOR_TEST); 1781 1782 GLfloat vtx[8]; 1783 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1784 glEnable(GL_TEXTURE_2D); 1785 glBindTexture(GL_TEXTURE_2D, tname); 1786 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 1787 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1788 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1789 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1790 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1791 glVertexPointer(2, GL_FLOAT, 0, vtx); 1792 1793 class s_curve_interpolator { 1794 const float nbFrames, s, v; 1795 public: 1796 s_curve_interpolator(int nbFrames, float s) 1797 : nbFrames(1.0f / (nbFrames-1)), s(s), 1798 v(1.0f + expf(-s + 0.5f*s)) { 1799 } 1800 float operator()(int f) { 1801 const float x = f * nbFrames; 1802 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1803 } 1804 }; 1805 1806 class v_stretch { 1807 const GLfloat hw_w, hw_h; 1808 public: 1809 v_stretch(uint32_t hw_w, uint32_t hw_h) 1810 : hw_w(hw_w), hw_h(hw_h) { 1811 } 1812 void operator()(GLfloat* vtx, float v) { 1813 const GLfloat w = hw_w + (hw_w * v); 1814 const GLfloat h = hw_h - (hw_h * v); 1815 const GLfloat x = (hw_w - w) * 0.5f; 1816 const GLfloat y = (hw_h - h) * 0.5f; 1817 vtx[0] = x; vtx[1] = y; 1818 vtx[2] = x; vtx[3] = y + h; 1819 vtx[4] = x + w; vtx[5] = y + h; 1820 vtx[6] = x + w; vtx[7] = y; 1821 } 1822 }; 1823 1824 class h_stretch { 1825 const GLfloat hw_w, hw_h; 1826 public: 1827 h_stretch(uint32_t hw_w, uint32_t hw_h) 1828 : hw_w(hw_w), hw_h(hw_h) { 1829 } 1830 void operator()(GLfloat* vtx, float v) { 1831 const GLfloat w = hw_w - (hw_w * v); 1832 const GLfloat h = 1.0f; 1833 const GLfloat x = (hw_w - w) * 0.5f; 1834 const GLfloat y = (hw_h - h) * 0.5f; 1835 vtx[0] = x; vtx[1] = y; 1836 vtx[2] = x; vtx[3] = y + h; 1837 vtx[4] = x + w; vtx[5] = y + h; 1838 vtx[6] = x + w; vtx[7] = y; 1839 } 1840 }; 1841 1842 // the full animation is 24 frames 1843 const int nbFrames = 12; 1844 s_curve_interpolator itr(nbFrames, 7.5f); 1845 s_curve_interpolator itg(nbFrames, 8.0f); 1846 s_curve_interpolator itb(nbFrames, 8.5f); 1847 1848 h_stretch hverts(hw_w, hw_h); 1849 glDisable(GL_BLEND); 1850 glDisable(GL_TEXTURE_2D); 1851 glColorMask(1,1,1,1); 1852 for (int i=nbFrames-1 ; i>=0 ; i--) { 1853 const float v = itg(i); 1854 hverts(vtx, v); 1855 glClear(GL_COLOR_BUFFER_BIT); 1856 glColor4f(1-v, 1-v, 1-v, 1); 1857 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1858 hw.flip(screenBounds); 1859 } 1860 1861 v_stretch vverts(hw_w, hw_h); 1862 glEnable(GL_BLEND); 1863 glBlendFunc(GL_ONE, GL_ONE); 1864 for (int i=nbFrames-1 ; i>=0 ; i--) { 1865 float x, y, w, h; 1866 const float vr = itr(i); 1867 const float vg = itg(i); 1868 const float vb = itb(i); 1869 1870 // clear screen 1871 glColorMask(1,1,1,1); 1872 glClear(GL_COLOR_BUFFER_BIT); 1873 glEnable(GL_TEXTURE_2D); 1874 1875 // draw the red plane 1876 vverts(vtx, vr); 1877 glColorMask(1,0,0,1); 1878 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1879 1880 // draw the green plane 1881 vverts(vtx, vg); 1882 glColorMask(0,1,0,1); 1883 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1884 1885 // draw the blue plane 1886 vverts(vtx, vb); 1887 glColorMask(0,0,1,1); 1888 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1889 1890 hw.flip(screenBounds); 1891 } 1892 1893 glColorMask(1,1,1,1); 1894 glEnable(GL_SCISSOR_TEST); 1895 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1896 glDeleteTextures(1, &tname); 1897 1898 return NO_ERROR; 1899} 1900 1901// --------------------------------------------------------------------------- 1902 1903status_t SurfaceFlinger::turnElectronBeamOffImplLocked() 1904{ 1905 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 1906 if (!hw.canDraw()) { 1907 // we're already off 1908 return NO_ERROR; 1909 } 1910 status_t result = electronBeamOffAnimationImplLocked(); 1911 if (result == NO_ERROR) { 1912 hw.setCanDraw(false); 1913 } 1914 return result; 1915} 1916 1917status_t SurfaceFlinger::turnElectronBeamOff(int32_t mode) 1918{ 1919 if (!GLExtensions::getInstance().haveFramebufferObject()) 1920 return INVALID_OPERATION; 1921 1922 class MessageTurnElectronBeamOff : public MessageBase { 1923 SurfaceFlinger* flinger; 1924 status_t result; 1925 public: 1926 MessageTurnElectronBeamOff(SurfaceFlinger* flinger) 1927 : flinger(flinger), result(PERMISSION_DENIED) { 1928 } 1929 status_t getResult() const { 1930 return result; 1931 } 1932 virtual bool handler() { 1933 Mutex::Autolock _l(flinger->mStateLock); 1934 result = flinger->turnElectronBeamOffImplLocked(); 1935 return true; 1936 } 1937 }; 1938 1939 sp<MessageBase> msg = new MessageTurnElectronBeamOff(this); 1940 status_t res = postMessageSync(msg); 1941 if (res == NO_ERROR) { 1942 res = static_cast<MessageTurnElectronBeamOff*>( msg.get() )->getResult(); 1943 1944 // work-around: when the power-manager calls us we activate the 1945 // animation. eventually, the "on" animation will be called 1946 // by the power-manager itself 1947 mElectronBeamAnimation = true; 1948 } 1949 return res; 1950} 1951 1952// --------------------------------------------------------------------------- 1953 1954status_t SurfaceFlinger::turnElectronBeamOnImplLocked() 1955{ 1956 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 1957 if (hw.canDraw()) { 1958 // we're already on 1959 return NO_ERROR; 1960 } 1961 status_t result = electronBeamOnAnimationImplLocked(); 1962 if (result == NO_ERROR) { 1963 hw.setCanDraw(true); 1964 } 1965 return result; 1966} 1967 1968status_t SurfaceFlinger::turnElectronBeamOn(int32_t mode) 1969{ 1970 if (!GLExtensions::getInstance().haveFramebufferObject()) 1971 return INVALID_OPERATION; 1972 1973 class MessageTurnElectronBeamOn : public MessageBase { 1974 SurfaceFlinger* flinger; 1975 status_t result; 1976 public: 1977 MessageTurnElectronBeamOn(SurfaceFlinger* flinger) 1978 : flinger(flinger), result(PERMISSION_DENIED) { 1979 } 1980 status_t getResult() const { 1981 return result; 1982 } 1983 virtual bool handler() { 1984 Mutex::Autolock _l(flinger->mStateLock); 1985 result = flinger->turnElectronBeamOnImplLocked(); 1986 return true; 1987 } 1988 }; 1989 1990 postMessageAsync( new MessageTurnElectronBeamOn(this) ); 1991 return NO_ERROR; 1992} 1993 1994// --------------------------------------------------------------------------- 1995 1996status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy, 1997 sp<IMemoryHeap>* heap, 1998 uint32_t* w, uint32_t* h, PixelFormat* f, 1999 uint32_t sw, uint32_t sh) 2000{ 2001 status_t result = PERMISSION_DENIED; 2002 2003 // only one display supported for now 2004 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2005 return BAD_VALUE; 2006 2007 if (!GLExtensions::getInstance().haveFramebufferObject()) 2008 return INVALID_OPERATION; 2009 2010 // get screen geometry 2011 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 2012 const uint32_t hw_w = hw.getWidth(); 2013 const uint32_t hw_h = hw.getHeight(); 2014 2015 if ((sw > hw_w) || (sh > hw_h)) 2016 return BAD_VALUE; 2017 2018 sw = (!sw) ? hw_w : sw; 2019 sh = (!sh) ? hw_h : sh; 2020 const size_t size = sw * sh * 4; 2021 2022 // make sure to clear all GL error flags 2023 while ( glGetError() != GL_NO_ERROR ) ; 2024 2025 // create a FBO 2026 GLuint name, tname; 2027 glGenRenderbuffersOES(1, &tname); 2028 glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname); 2029 glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh); 2030 glGenFramebuffersOES(1, &name); 2031 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 2032 glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, 2033 GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname); 2034 2035 GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES); 2036 if (status == GL_FRAMEBUFFER_COMPLETE_OES) { 2037 2038 // invert everything, b/c glReadPixel() below will invert the FB 2039 glViewport(0, 0, sw, sh); 2040 glMatrixMode(GL_PROJECTION); 2041 glPushMatrix(); 2042 glLoadIdentity(); 2043 glOrthof(0, hw_w, 0, hw_h, 0, 1); 2044 glMatrixMode(GL_MODELVIEW); 2045 2046 // redraw the screen entirely... 2047 glClearColor(0,0,0,1); 2048 glClear(GL_COLOR_BUFFER_BIT); 2049 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 2050 const size_t count = layers.size(); 2051 for (size_t i=0 ; i<count ; ++i) { 2052 const sp<LayerBase>& layer(layers[i]); 2053 layer->drawForSreenShot(); 2054 } 2055 2056 // XXX: this is needed on tegra 2057 glScissor(0, 0, sw, sh); 2058 2059 // check for errors and return screen capture 2060 if (glGetError() != GL_NO_ERROR) { 2061 // error while rendering 2062 result = INVALID_OPERATION; 2063 } else { 2064 // allocate shared memory large enough to hold the 2065 // screen capture 2066 sp<MemoryHeapBase> base( 2067 new MemoryHeapBase(size, 0, "screen-capture") ); 2068 void* const ptr = base->getBase(); 2069 if (ptr) { 2070 // capture the screen with glReadPixels() 2071 glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr); 2072 if (glGetError() == GL_NO_ERROR) { 2073 *heap = base; 2074 *w = sw; 2075 *h = sh; 2076 *f = PIXEL_FORMAT_RGBA_8888; 2077 result = NO_ERROR; 2078 } 2079 } else { 2080 result = NO_MEMORY; 2081 } 2082 } 2083 2084 glEnable(GL_SCISSOR_TEST); 2085 glViewport(0, 0, hw_w, hw_h); 2086 glMatrixMode(GL_PROJECTION); 2087 glPopMatrix(); 2088 glMatrixMode(GL_MODELVIEW); 2089 2090 2091 } else { 2092 result = BAD_VALUE; 2093 } 2094 2095 // release FBO resources 2096 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 2097 glDeleteRenderbuffersOES(1, &tname); 2098 glDeleteFramebuffersOES(1, &name); 2099 return result; 2100} 2101 2102 2103status_t SurfaceFlinger::captureScreen(DisplayID dpy, 2104 sp<IMemoryHeap>* heap, 2105 uint32_t* width, uint32_t* height, PixelFormat* format, 2106 uint32_t sw, uint32_t sh) 2107{ 2108 // only one display supported for now 2109 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2110 return BAD_VALUE; 2111 2112 if (!GLExtensions::getInstance().haveFramebufferObject()) 2113 return INVALID_OPERATION; 2114 2115 class MessageCaptureScreen : public MessageBase { 2116 SurfaceFlinger* flinger; 2117 DisplayID dpy; 2118 sp<IMemoryHeap>* heap; 2119 uint32_t* w; 2120 uint32_t* h; 2121 PixelFormat* f; 2122 uint32_t sw; 2123 uint32_t sh; 2124 status_t result; 2125 public: 2126 MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy, 2127 sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f, 2128 uint32_t sw, uint32_t sh) 2129 : flinger(flinger), dpy(dpy), 2130 heap(heap), w(w), h(h), f(f), sw(sw), sh(sh), result(PERMISSION_DENIED) 2131 { 2132 } 2133 status_t getResult() const { 2134 return result; 2135 } 2136 virtual bool handler() { 2137 Mutex::Autolock _l(flinger->mStateLock); 2138 2139 // if we have secure windows, never allow the screen capture 2140 if (flinger->mSecureFrameBuffer) 2141 return true; 2142 2143 result = flinger->captureScreenImplLocked(dpy, 2144 heap, w, h, f, sw, sh); 2145 2146 return true; 2147 } 2148 }; 2149 2150 sp<MessageBase> msg = new MessageCaptureScreen(this, 2151 dpy, heap, width, height, format, sw, sh); 2152 status_t res = postMessageSync(msg); 2153 if (res == NO_ERROR) { 2154 res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult(); 2155 } 2156 return res; 2157} 2158 2159// --------------------------------------------------------------------------- 2160 2161sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const 2162{ 2163 sp<Layer> result; 2164 Mutex::Autolock _l(mStateLock); 2165 result = mLayerMap.valueFor( sur->asBinder() ).promote(); 2166 return result; 2167} 2168 2169// --------------------------------------------------------------------------- 2170 2171Client::Client(const sp<SurfaceFlinger>& flinger) 2172 : mFlinger(flinger), mNameGenerator(1) 2173{ 2174} 2175 2176Client::~Client() 2177{ 2178 const size_t count = mLayers.size(); 2179 for (size_t i=0 ; i<count ; i++) { 2180 sp<LayerBaseClient> layer(mLayers.valueAt(i).promote()); 2181 if (layer != 0) { 2182 mFlinger->removeLayer(layer); 2183 } 2184 } 2185} 2186 2187status_t Client::initCheck() const { 2188 return NO_ERROR; 2189} 2190 2191ssize_t Client::attachLayer(const sp<LayerBaseClient>& layer) 2192{ 2193 int32_t name = android_atomic_inc(&mNameGenerator); 2194 mLayers.add(name, layer); 2195 return name; 2196} 2197 2198void Client::detachLayer(const LayerBaseClient* layer) 2199{ 2200 // we do a linear search here, because this doesn't happen often 2201 const size_t count = mLayers.size(); 2202 for (size_t i=0 ; i<count ; i++) { 2203 if (mLayers.valueAt(i) == layer) { 2204 mLayers.removeItemsAt(i, 1); 2205 break; 2206 } 2207 } 2208} 2209sp<LayerBaseClient> Client::getLayerUser(int32_t i) const { 2210 sp<LayerBaseClient> lbc; 2211 const wp<LayerBaseClient>& layer(mLayers.valueFor(i)); 2212 if (layer != 0) { 2213 lbc = layer.promote(); 2214 LOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i)); 2215 } 2216 return lbc; 2217} 2218 2219sp<IMemoryHeap> Client::getControlBlock() const { 2220 return 0; 2221} 2222ssize_t Client::getTokenForSurface(const sp<ISurface>& sur) const { 2223 return -1; 2224} 2225sp<ISurface> Client::createSurface( 2226 ISurfaceComposerClient::surface_data_t* params, int pid, 2227 const String8& name, 2228 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2229 uint32_t flags) 2230{ 2231 return mFlinger->createSurface(this, pid, name, params, 2232 display, w, h, format, flags); 2233} 2234status_t Client::destroySurface(SurfaceID sid) { 2235 return mFlinger->removeSurface(this, sid); 2236} 2237status_t Client::setState(int32_t count, const layer_state_t* states) { 2238 return mFlinger->setClientState(this, count, states); 2239} 2240 2241// --------------------------------------------------------------------------- 2242 2243UserClient::UserClient(const sp<SurfaceFlinger>& flinger) 2244 : ctrlblk(0), mBitmap(0), mFlinger(flinger) 2245{ 2246 const int pgsize = getpagesize(); 2247 const int cblksize = ((sizeof(SharedClient)+(pgsize-1))&~(pgsize-1)); 2248 2249 mCblkHeap = new MemoryHeapBase(cblksize, 0, 2250 "SurfaceFlinger Client control-block"); 2251 2252 ctrlblk = static_cast<SharedClient *>(mCblkHeap->getBase()); 2253 if (ctrlblk) { // construct the shared structure in-place. 2254 new(ctrlblk) SharedClient; 2255 } 2256} 2257 2258UserClient::~UserClient() 2259{ 2260 if (ctrlblk) { 2261 ctrlblk->~SharedClient(); // destroy our shared-structure. 2262 } 2263 2264 /* 2265 * When a UserClient dies, it's unclear what to do exactly. 2266 * We could go ahead and destroy all surfaces linked to that client 2267 * however, it wouldn't be fair to the main Client 2268 * (usually the the window-manager), which might want to re-target 2269 * the layer to another UserClient. 2270 * I think the best is to do nothing, or not much; in most cases the 2271 * WM itself will go ahead and clean things up when it detects a client of 2272 * his has died. 2273 * The remaining question is what to display? currently we keep 2274 * just keep the current buffer. 2275 */ 2276} 2277 2278status_t UserClient::initCheck() const { 2279 return ctrlblk == 0 ? NO_INIT : NO_ERROR; 2280} 2281 2282void UserClient::detachLayer(const Layer* layer) 2283{ 2284 int32_t name = layer->getToken(); 2285 if (name >= 0) { 2286 int32_t mask = 1LU<<name; 2287 if ((android_atomic_and(~mask, &mBitmap) & mask) == 0) { 2288 LOGW("token %d wasn't marked as used %08x", name, int(mBitmap)); 2289 } 2290 } 2291} 2292 2293sp<IMemoryHeap> UserClient::getControlBlock() const { 2294 return mCblkHeap; 2295} 2296 2297ssize_t UserClient::getTokenForSurface(const sp<ISurface>& sur) const 2298{ 2299 int32_t name = NAME_NOT_FOUND; 2300 sp<Layer> layer(mFlinger->getLayer(sur)); 2301 if (layer == 0) return name; 2302 2303 // if this layer already has a token, just return it 2304 name = layer->getToken(); 2305 if ((name >= 0) && (layer->getClient() == this)) 2306 return name; 2307 2308 name = 0; 2309 do { 2310 int32_t mask = 1LU<<name; 2311 if ((android_atomic_or(mask, &mBitmap) & mask) == 0) { 2312 // we found and locked that name 2313 status_t err = layer->setToken( 2314 const_cast<UserClient*>(this), ctrlblk, name); 2315 if (err != NO_ERROR) { 2316 // free the name 2317 android_atomic_and(~mask, &mBitmap); 2318 name = err; 2319 } 2320 break; 2321 } 2322 if (++name > 31) 2323 name = NO_MEMORY; 2324 } while(name >= 0); 2325 2326 //LOGD("getTokenForSurface(%p) => %d (client=%p, bitmap=%08lx)", 2327 // sur->asBinder().get(), name, this, mBitmap); 2328 return name; 2329} 2330 2331sp<ISurface> UserClient::createSurface( 2332 ISurfaceComposerClient::surface_data_t* params, int pid, 2333 const String8& name, 2334 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2335 uint32_t flags) { 2336 return 0; 2337} 2338status_t UserClient::destroySurface(SurfaceID sid) { 2339 return INVALID_OPERATION; 2340} 2341status_t UserClient::setState(int32_t count, const layer_state_t* states) { 2342 return INVALID_OPERATION; 2343} 2344 2345// --------------------------------------------------------------------------- 2346 2347GraphicPlane::GraphicPlane() 2348 : mHw(0) 2349{ 2350} 2351 2352GraphicPlane::~GraphicPlane() { 2353 delete mHw; 2354} 2355 2356bool GraphicPlane::initialized() const { 2357 return mHw ? true : false; 2358} 2359 2360int GraphicPlane::getWidth() const { 2361 return mWidth; 2362} 2363 2364int GraphicPlane::getHeight() const { 2365 return mHeight; 2366} 2367 2368void GraphicPlane::setDisplayHardware(DisplayHardware *hw) 2369{ 2370 mHw = hw; 2371 2372 // initialize the display orientation transform. 2373 // it's a constant that should come from the display driver. 2374 int displayOrientation = ISurfaceComposer::eOrientationDefault; 2375 char property[PROPERTY_VALUE_MAX]; 2376 if (property_get("ro.sf.hwrotation", property, NULL) > 0) { 2377 //displayOrientation 2378 switch (atoi(property)) { 2379 case 90: 2380 displayOrientation = ISurfaceComposer::eOrientation90; 2381 break; 2382 case 270: 2383 displayOrientation = ISurfaceComposer::eOrientation270; 2384 break; 2385 } 2386 } 2387 2388 const float w = hw->getWidth(); 2389 const float h = hw->getHeight(); 2390 GraphicPlane::orientationToTransfrom(displayOrientation, w, h, 2391 &mDisplayTransform); 2392 if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) { 2393 mDisplayWidth = h; 2394 mDisplayHeight = w; 2395 } else { 2396 mDisplayWidth = w; 2397 mDisplayHeight = h; 2398 } 2399 2400 setOrientation(ISurfaceComposer::eOrientationDefault); 2401} 2402 2403status_t GraphicPlane::orientationToTransfrom( 2404 int orientation, int w, int h, Transform* tr) 2405{ 2406 uint32_t flags = 0; 2407 switch (orientation) { 2408 case ISurfaceComposer::eOrientationDefault: 2409 flags = Transform::ROT_0; 2410 break; 2411 case ISurfaceComposer::eOrientation90: 2412 flags = Transform::ROT_90; 2413 break; 2414 case ISurfaceComposer::eOrientation180: 2415 flags = Transform::ROT_180; 2416 break; 2417 case ISurfaceComposer::eOrientation270: 2418 flags = Transform::ROT_270; 2419 break; 2420 default: 2421 return BAD_VALUE; 2422 } 2423 tr->set(flags, w, h); 2424 return NO_ERROR; 2425} 2426 2427status_t GraphicPlane::setOrientation(int orientation) 2428{ 2429 // If the rotation can be handled in hardware, this is where 2430 // the magic should happen. 2431 2432 const DisplayHardware& hw(displayHardware()); 2433 const float w = mDisplayWidth; 2434 const float h = mDisplayHeight; 2435 mWidth = int(w); 2436 mHeight = int(h); 2437 2438 Transform orientationTransform; 2439 GraphicPlane::orientationToTransfrom(orientation, w, h, 2440 &orientationTransform); 2441 if (orientation & ISurfaceComposer::eOrientationSwapMask) { 2442 mWidth = int(h); 2443 mHeight = int(w); 2444 } 2445 2446 mOrientation = orientation; 2447 mGlobalTransform = mDisplayTransform * orientationTransform; 2448 return NO_ERROR; 2449} 2450 2451const DisplayHardware& GraphicPlane::displayHardware() const { 2452 return *mHw; 2453} 2454 2455DisplayHardware& GraphicPlane::editDisplayHardware() { 2456 return *mHw; 2457} 2458 2459const Transform& GraphicPlane::transform() const { 2460 return mGlobalTransform; 2461} 2462 2463EGLDisplay GraphicPlane::getEGLDisplay() const { 2464 return mHw->getEGLDisplay(); 2465} 2466 2467// --------------------------------------------------------------------------- 2468 2469}; // namespace android 2470