SurfaceFlinger.cpp revision 22c67843bebd2083053af5992befe7ebd50303a5
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#ifdef USE_COMPOSITION_BYPASS 65#warning "using COMPOSITION_BYPASS" 66#endif 67 68#define DISPLAY_COUNT 1 69 70namespace android { 71// --------------------------------------------------------------------------- 72 73SurfaceFlinger::SurfaceFlinger() 74 : BnSurfaceComposer(), Thread(false), 75 mTransactionFlags(0), 76 mTransactionCount(0), 77 mResizeTransationPending(false), 78 mLayersRemoved(false), 79 mBootTime(systemTime()), 80 mHardwareTest("android.permission.HARDWARE_TEST"), 81 mAccessSurfaceFlinger("android.permission.ACCESS_SURFACE_FLINGER"), 82 mReadFramebuffer("android.permission.READ_FRAME_BUFFER"), 83 mDump("android.permission.DUMP"), 84 mVisibleRegionsDirty(false), 85 mDeferReleaseConsole(false), 86 mFreezeDisplay(false), 87 mElectronBeamAnimationMode(0), 88 mFreezeCount(0), 89 mFreezeDisplayTime(0), 90 mDebugRegion(0), 91 mDebugBackground(0), 92 mDebugInSwapBuffers(0), 93 mLastSwapBufferTime(0), 94 mDebugInTransaction(0), 95 mLastTransactionTime(0), 96 mBootFinished(false), 97 mConsoleSignals(0), 98 mSecureFrameBuffer(0) 99{ 100 init(); 101} 102 103void SurfaceFlinger::init() 104{ 105 LOGI("SurfaceFlinger is starting"); 106 107 // debugging stuff... 108 char value[PROPERTY_VALUE_MAX]; 109 property_get("debug.sf.showupdates", value, "0"); 110 mDebugRegion = atoi(value); 111 property_get("debug.sf.showbackground", value, "0"); 112 mDebugBackground = atoi(value); 113 114 LOGI_IF(mDebugRegion, "showupdates enabled"); 115 LOGI_IF(mDebugBackground, "showbackground enabled"); 116} 117 118SurfaceFlinger::~SurfaceFlinger() 119{ 120 glDeleteTextures(1, &mWormholeTexName); 121} 122 123overlay_control_device_t* SurfaceFlinger::getOverlayEngine() const 124{ 125 return graphicPlane(0).displayHardware().getOverlayEngine(); 126} 127 128sp<IMemoryHeap> SurfaceFlinger::getCblk() const 129{ 130 return mServerHeap; 131} 132 133sp<ISurfaceComposerClient> SurfaceFlinger::createConnection() 134{ 135 sp<ISurfaceComposerClient> bclient; 136 sp<Client> client(new Client(this)); 137 status_t err = client->initCheck(); 138 if (err == NO_ERROR) { 139 bclient = client; 140 } 141 return bclient; 142} 143 144sp<ISurfaceComposerClient> SurfaceFlinger::createClientConnection() 145{ 146 sp<ISurfaceComposerClient> bclient; 147 sp<UserClient> client(new UserClient(this)); 148 status_t err = client->initCheck(); 149 if (err == NO_ERROR) { 150 bclient = client; 151 } 152 return bclient; 153} 154 155 156const GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) const 157{ 158 LOGE_IF(uint32_t(dpy) >= DISPLAY_COUNT, "Invalid DisplayID %d", dpy); 159 const GraphicPlane& plane(mGraphicPlanes[dpy]); 160 return plane; 161} 162 163GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) 164{ 165 return const_cast<GraphicPlane&>( 166 const_cast<SurfaceFlinger const *>(this)->graphicPlane(dpy)); 167} 168 169void SurfaceFlinger::bootFinished() 170{ 171 const nsecs_t now = systemTime(); 172 const nsecs_t duration = now - mBootTime; 173 LOGI("Boot is finished (%ld ms)", long(ns2ms(duration)) ); 174 mBootFinished = true; 175 property_set("ctl.stop", "bootanim"); 176} 177 178void SurfaceFlinger::onFirstRef() 179{ 180 run("SurfaceFlinger", PRIORITY_URGENT_DISPLAY); 181 182 // Wait for the main thread to be done with its initialization 183 mReadyToRunBarrier.wait(); 184} 185 186static inline uint16_t pack565(int r, int g, int b) { 187 return (r<<11)|(g<<5)|b; 188} 189 190status_t SurfaceFlinger::readyToRun() 191{ 192 LOGI( "SurfaceFlinger's main thread ready to run. " 193 "Initializing graphics H/W..."); 194 195 // we only support one display currently 196 int dpy = 0; 197 198 { 199 // initialize the main display 200 GraphicPlane& plane(graphicPlane(dpy)); 201 DisplayHardware* const hw = new DisplayHardware(this, dpy); 202 plane.setDisplayHardware(hw); 203 } 204 205 // create the shared control-block 206 mServerHeap = new MemoryHeapBase(4096, 207 MemoryHeapBase::READ_ONLY, "SurfaceFlinger read-only heap"); 208 LOGE_IF(mServerHeap==0, "can't create shared memory dealer"); 209 210 mServerCblk = static_cast<surface_flinger_cblk_t*>(mServerHeap->getBase()); 211 LOGE_IF(mServerCblk==0, "can't get to shared control block's address"); 212 213 new(mServerCblk) surface_flinger_cblk_t; 214 215 // initialize primary screen 216 // (other display should be initialized in the same manner, but 217 // asynchronously, as they could come and go. None of this is supported 218 // yet). 219 const GraphicPlane& plane(graphicPlane(dpy)); 220 const DisplayHardware& hw = plane.displayHardware(); 221 const uint32_t w = hw.getWidth(); 222 const uint32_t h = hw.getHeight(); 223 const uint32_t f = hw.getFormat(); 224 hw.makeCurrent(); 225 226 // initialize the shared control block 227 mServerCblk->connected |= 1<<dpy; 228 display_cblk_t* dcblk = mServerCblk->displays + dpy; 229 memset(dcblk, 0, sizeof(display_cblk_t)); 230 dcblk->w = plane.getWidth(); 231 dcblk->h = plane.getHeight(); 232 dcblk->format = f; 233 dcblk->orientation = ISurfaceComposer::eOrientationDefault; 234 dcblk->xdpi = hw.getDpiX(); 235 dcblk->ydpi = hw.getDpiY(); 236 dcblk->fps = hw.getRefreshRate(); 237 dcblk->density = hw.getDensity(); 238 239 // Initialize OpenGL|ES 240 glPixelStorei(GL_UNPACK_ALIGNMENT, 4); 241 glPixelStorei(GL_PACK_ALIGNMENT, 4); 242 glEnableClientState(GL_VERTEX_ARRAY); 243 glEnable(GL_SCISSOR_TEST); 244 glShadeModel(GL_FLAT); 245 glDisable(GL_DITHER); 246 glDisable(GL_CULL_FACE); 247 248 const uint16_t g0 = pack565(0x0F,0x1F,0x0F); 249 const uint16_t g1 = pack565(0x17,0x2f,0x17); 250 const uint16_t textureData[4] = { g0, g1, g1, g0 }; 251 glGenTextures(1, &mWormholeTexName); 252 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 253 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 254 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 255 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 256 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 257 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, 258 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, textureData); 259 260 glViewport(0, 0, w, h); 261 glMatrixMode(GL_PROJECTION); 262 glLoadIdentity(); 263 glOrthof(0, w, h, 0, 0, 1); 264 265 LayerDim::initDimmer(this, w, h); 266 267 mReadyToRunBarrier.open(); 268 269 /* 270 * We're now ready to accept clients... 271 */ 272 273 // start boot animation 274 property_set("ctl.start", "bootanim"); 275 276 return NO_ERROR; 277} 278 279// ---------------------------------------------------------------------------- 280#if 0 281#pragma mark - 282#pragma mark Events Handler 283#endif 284 285void SurfaceFlinger::waitForEvent() 286{ 287 while (true) { 288 nsecs_t timeout = -1; 289 const nsecs_t freezeDisplayTimeout = ms2ns(5000); 290 if (UNLIKELY(isFrozen())) { 291 // wait 5 seconds 292 const nsecs_t now = systemTime(); 293 if (mFreezeDisplayTime == 0) { 294 mFreezeDisplayTime = now; 295 } 296 nsecs_t waitTime = freezeDisplayTimeout - (now - mFreezeDisplayTime); 297 timeout = waitTime>0 ? waitTime : 0; 298 } 299 300 sp<MessageBase> msg = mEventQueue.waitMessage(timeout); 301 302 // see if we timed out 303 if (isFrozen()) { 304 const nsecs_t now = systemTime(); 305 nsecs_t frozenTime = (now - mFreezeDisplayTime); 306 if (frozenTime >= freezeDisplayTimeout) { 307 // we timed out and are still frozen 308 LOGW("timeout expired mFreezeDisplay=%d, mFreezeCount=%d", 309 mFreezeDisplay, mFreezeCount); 310 mFreezeDisplayTime = 0; 311 mFreezeCount = 0; 312 mFreezeDisplay = false; 313 } 314 } 315 316 if (msg != 0) { 317 switch (msg->what) { 318 case MessageQueue::INVALIDATE: 319 // invalidate message, just return to the main loop 320 return; 321 } 322 } 323 } 324} 325 326void SurfaceFlinger::signalEvent() { 327 mEventQueue.invalidate(); 328} 329 330void SurfaceFlinger::signal() const { 331 // this is the IPC call 332 const_cast<SurfaceFlinger*>(this)->signalEvent(); 333} 334 335status_t SurfaceFlinger::postMessageAsync(const sp<MessageBase>& msg, 336 nsecs_t reltime, uint32_t flags) 337{ 338 return mEventQueue.postMessage(msg, reltime, flags); 339} 340 341status_t SurfaceFlinger::postMessageSync(const sp<MessageBase>& msg, 342 nsecs_t reltime, uint32_t flags) 343{ 344 status_t res = mEventQueue.postMessage(msg, reltime, flags); 345 if (res == NO_ERROR) { 346 msg->wait(); 347 } 348 return res; 349} 350 351// ---------------------------------------------------------------------------- 352#if 0 353#pragma mark - 354#pragma mark Main loop 355#endif 356 357bool SurfaceFlinger::threadLoop() 358{ 359 waitForEvent(); 360 361 // check for transactions 362 if (UNLIKELY(mConsoleSignals)) { 363 handleConsoleEvents(); 364 } 365 366 if (LIKELY(mTransactionCount == 0)) { 367 // if we're in a global transaction, don't do anything. 368 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 369 uint32_t transactionFlags = getTransactionFlags(mask); 370 if (LIKELY(transactionFlags)) { 371 handleTransaction(transactionFlags); 372 } 373 } 374 375 // post surfaces (if needed) 376 handlePageFlip(); 377 378 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 379 if (LIKELY(hw.canDraw() && !isFrozen())) { 380 381#ifdef USE_COMPOSITION_BYPASS 382 if (handleBypassLayer()) { 383 unlockClients(); 384 return true; 385 } 386#endif 387 388 // repaint the framebuffer (if needed) 389 const int index = hw.getCurrentBufferIndex(); 390 GraphicLog& logger(GraphicLog::getInstance()); 391 392 logger.log(GraphicLog::SF_REPAINT, index); 393 handleRepaint(); 394 395 // inform the h/w that we're done compositing 396 logger.log(GraphicLog::SF_COMPOSITION_COMPLETE, index); 397 hw.compositionComplete(); 398 399 // release the clients before we flip ('cause flip might block) 400 logger.log(GraphicLog::SF_UNLOCK_CLIENTS, index); 401 unlockClients(); 402 403 logger.log(GraphicLog::SF_SWAP_BUFFERS, index); 404 postFramebuffer(); 405 406 logger.log(GraphicLog::SF_REPAINT_DONE, index); 407 } else { 408 // pretend we did the post 409 unlockClients(); 410 usleep(16667); // 60 fps period 411 } 412 return true; 413} 414 415bool SurfaceFlinger::handleBypassLayer() 416{ 417 sp<Layer> bypassLayer(mBypassLayer.promote()); 418 if (bypassLayer != 0) { 419 sp<GraphicBuffer> buffer(bypassLayer->getBypassBuffer()); 420 if (buffer!=0 && (buffer->usage & GRALLOC_USAGE_HW_FB)) { 421 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 422 hw.postBypassBuffer(buffer->handle); 423 return true; 424 } 425 } 426 return false; 427} 428 429void SurfaceFlinger::postFramebuffer() 430{ 431 if (!mInvalidRegion.isEmpty()) { 432 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 433 const nsecs_t now = systemTime(); 434 mDebugInSwapBuffers = now; 435 hw.flip(mInvalidRegion); 436 mLastSwapBufferTime = systemTime() - now; 437 mDebugInSwapBuffers = 0; 438 mInvalidRegion.clear(); 439 } 440} 441 442void SurfaceFlinger::handleConsoleEvents() 443{ 444 // something to do with the console 445 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 446 447 int what = android_atomic_and(0, &mConsoleSignals); 448 if (what & eConsoleAcquired) { 449 hw.acquireScreen(); 450 // this is a temporary work-around, eventually this should be called 451 // by the power-manager 452 SurfaceFlinger::turnElectronBeamOn(mElectronBeamAnimationMode); 453 } 454 455 if (mDeferReleaseConsole && hw.isScreenAcquired()) { 456 // We got the release signal before the acquire signal 457 mDeferReleaseConsole = false; 458 hw.releaseScreen(); 459 } 460 461 if (what & eConsoleReleased) { 462 if (hw.isScreenAcquired()) { 463 hw.releaseScreen(); 464 } else { 465 mDeferReleaseConsole = true; 466 } 467 } 468 469 mDirtyRegion.set(hw.bounds()); 470} 471 472void SurfaceFlinger::handleTransaction(uint32_t transactionFlags) 473{ 474 Vector< sp<LayerBase> > ditchedLayers; 475 476 /* 477 * Perform and commit the transaction 478 */ 479 480 { // scope for the lock 481 Mutex::Autolock _l(mStateLock); 482 const nsecs_t now = systemTime(); 483 mDebugInTransaction = now; 484 handleTransactionLocked(transactionFlags, ditchedLayers); 485 mLastTransactionTime = systemTime() - now; 486 mDebugInTransaction = 0; 487 // here the transaction has been committed 488 } 489 490 /* 491 * Clean-up all layers that went away 492 * (do this without the lock held) 493 */ 494 const size_t count = ditchedLayers.size(); 495 for (size_t i=0 ; i<count ; i++) { 496 if (ditchedLayers[i] != 0) { 497 //LOGD("ditching layer %p", ditchedLayers[i].get()); 498 ditchedLayers[i]->ditch(); 499 } 500 } 501} 502 503void SurfaceFlinger::handleTransactionLocked( 504 uint32_t transactionFlags, Vector< sp<LayerBase> >& ditchedLayers) 505{ 506 const LayerVector& currentLayers(mCurrentState.layersSortedByZ); 507 const size_t count = currentLayers.size(); 508 509 /* 510 * Traversal of the children 511 * (perform the transaction for each of them if needed) 512 */ 513 514 const bool layersNeedTransaction = transactionFlags & eTraversalNeeded; 515 if (layersNeedTransaction) { 516 for (size_t i=0 ; i<count ; i++) { 517 const sp<LayerBase>& layer = currentLayers[i]; 518 uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded); 519 if (!trFlags) continue; 520 521 const uint32_t flags = layer->doTransaction(0); 522 if (flags & Layer::eVisibleRegion) 523 mVisibleRegionsDirty = true; 524 } 525 } 526 527 /* 528 * Perform our own transaction if needed 529 */ 530 531 if (transactionFlags & eTransactionNeeded) { 532 if (mCurrentState.orientation != mDrawingState.orientation) { 533 // the orientation has changed, recompute all visible regions 534 // and invalidate everything. 535 536 const int dpy = 0; 537 const int orientation = mCurrentState.orientation; 538 const uint32_t type = mCurrentState.orientationType; 539 GraphicPlane& plane(graphicPlane(dpy)); 540 plane.setOrientation(orientation); 541 542 // update the shared control block 543 const DisplayHardware& hw(plane.displayHardware()); 544 volatile display_cblk_t* dcblk = mServerCblk->displays + dpy; 545 dcblk->orientation = orientation; 546 dcblk->w = plane.getWidth(); 547 dcblk->h = plane.getHeight(); 548 549 mVisibleRegionsDirty = true; 550 mDirtyRegion.set(hw.bounds()); 551 } 552 553 if (mCurrentState.freezeDisplay != mDrawingState.freezeDisplay) { 554 // freezing or unfreezing the display -> trigger animation if needed 555 mFreezeDisplay = mCurrentState.freezeDisplay; 556 if (mFreezeDisplay) 557 mFreezeDisplayTime = 0; 558 } 559 560 if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) { 561 // layers have been added 562 mVisibleRegionsDirty = true; 563 } 564 565 // some layers might have been removed, so 566 // we need to update the regions they're exposing. 567 if (mLayersRemoved) { 568 mLayersRemoved = false; 569 mVisibleRegionsDirty = true; 570 const LayerVector& previousLayers(mDrawingState.layersSortedByZ); 571 const size_t count = previousLayers.size(); 572 for (size_t i=0 ; i<count ; i++) { 573 const sp<LayerBase>& layer(previousLayers[i]); 574 if (currentLayers.indexOf( layer ) < 0) { 575 // this layer is not visible anymore 576 ditchedLayers.add(layer); 577 mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen); 578 } 579 } 580 } 581 } 582 583 commitTransaction(); 584} 585 586sp<FreezeLock> SurfaceFlinger::getFreezeLock() const 587{ 588 return new FreezeLock(const_cast<SurfaceFlinger *>(this)); 589} 590 591void SurfaceFlinger::computeVisibleRegions( 592 LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion) 593{ 594 const GraphicPlane& plane(graphicPlane(0)); 595 const Transform& planeTransform(plane.transform()); 596 const DisplayHardware& hw(plane.displayHardware()); 597 const Region screenRegion(hw.bounds()); 598 599 Region aboveOpaqueLayers; 600 Region aboveCoveredLayers; 601 Region dirty; 602 603 bool secureFrameBuffer = false; 604 605 size_t i = currentLayers.size(); 606 while (i--) { 607 const sp<LayerBase>& layer = currentLayers[i]; 608 layer->validateVisibility(planeTransform); 609 610 // start with the whole surface at its current location 611 const Layer::State& s(layer->drawingState()); 612 613 /* 614 * opaqueRegion: area of a surface that is fully opaque. 615 */ 616 Region opaqueRegion; 617 618 /* 619 * visibleRegion: area of a surface that is visible on screen 620 * and not fully transparent. This is essentially the layer's 621 * footprint minus the opaque regions above it. 622 * Areas covered by a translucent surface are considered visible. 623 */ 624 Region visibleRegion; 625 626 /* 627 * coveredRegion: area of a surface that is covered by all 628 * visible regions above it (which includes the translucent areas). 629 */ 630 Region coveredRegion; 631 632 633 // handle hidden surfaces by setting the visible region to empty 634 if (LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) { 635 const bool translucent = layer->needsBlending(); 636 const Rect bounds(layer->visibleBounds()); 637 visibleRegion.set(bounds); 638 visibleRegion.andSelf(screenRegion); 639 if (!visibleRegion.isEmpty()) { 640 // Remove the transparent area from the visible region 641 if (translucent) { 642 visibleRegion.subtractSelf(layer->transparentRegionScreen); 643 } 644 645 // compute the opaque region 646 const int32_t layerOrientation = layer->getOrientation(); 647 if (s.alpha==255 && !translucent && 648 ((layerOrientation & Transform::ROT_INVALID) == false)) { 649 // the opaque region is the layer's footprint 650 opaqueRegion = visibleRegion; 651 } 652 } 653 } 654 655 // Clip the covered region to the visible region 656 coveredRegion = aboveCoveredLayers.intersect(visibleRegion); 657 658 // Update aboveCoveredLayers for next (lower) layer 659 aboveCoveredLayers.orSelf(visibleRegion); 660 661 // subtract the opaque region covered by the layers above us 662 visibleRegion.subtractSelf(aboveOpaqueLayers); 663 664 // compute this layer's dirty region 665 if (layer->contentDirty) { 666 // we need to invalidate the whole region 667 dirty = visibleRegion; 668 // as well, as the old visible region 669 dirty.orSelf(layer->visibleRegionScreen); 670 layer->contentDirty = false; 671 } else { 672 /* compute the exposed region: 673 * the exposed region consists of two components: 674 * 1) what's VISIBLE now and was COVERED before 675 * 2) what's EXPOSED now less what was EXPOSED before 676 * 677 * note that (1) is conservative, we start with the whole 678 * visible region but only keep what used to be covered by 679 * something -- which mean it may have been exposed. 680 * 681 * (2) handles areas that were not covered by anything but got 682 * exposed because of a resize. 683 */ 684 const Region newExposed = visibleRegion - coveredRegion; 685 const Region oldVisibleRegion = layer->visibleRegionScreen; 686 const Region oldCoveredRegion = layer->coveredRegionScreen; 687 const Region oldExposed = oldVisibleRegion - oldCoveredRegion; 688 dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed); 689 } 690 dirty.subtractSelf(aboveOpaqueLayers); 691 692 // accumulate to the screen dirty region 693 dirtyRegion.orSelf(dirty); 694 695 // Update aboveOpaqueLayers for next (lower) layer 696 aboveOpaqueLayers.orSelf(opaqueRegion); 697 698 // Store the visible region is screen space 699 layer->setVisibleRegion(visibleRegion); 700 layer->setCoveredRegion(coveredRegion); 701 702 // If a secure layer is partially visible, lock-down the screen! 703 if (layer->isSecure() && !visibleRegion.isEmpty()) { 704 secureFrameBuffer = true; 705 } 706 } 707 708 // invalidate the areas where a layer was removed 709 dirtyRegion.orSelf(mDirtyRegionRemovedLayer); 710 mDirtyRegionRemovedLayer.clear(); 711 712 mSecureFrameBuffer = secureFrameBuffer; 713 opaqueRegion = aboveOpaqueLayers; 714} 715 716 717void SurfaceFlinger::commitTransaction() 718{ 719 mDrawingState = mCurrentState; 720 mResizeTransationPending = false; 721 mTransactionCV.broadcast(); 722} 723 724void SurfaceFlinger::setBypassLayer(const sp<LayerBase>& layer) 725{ 726 // if this layer is already the bypass layer, do nothing 727 sp<Layer> cur(mBypassLayer.promote()); 728 if (mBypassLayer == layer) 729 return; 730 731 // clear the current bypass layer 732 mBypassLayer.clear(); 733 if (cur != 0) { 734 cur->setBypass(false); 735 cur.clear(); 736 } 737 738 // set new bypass layer 739 if (layer != 0) { 740 if (layer->setBypass(true)) { 741 mBypassLayer = static_cast<Layer*>(layer.get()); 742 } 743 } 744} 745 746void SurfaceFlinger::handlePageFlip() 747{ 748 bool visibleRegions = mVisibleRegionsDirty; 749 LayerVector& currentLayers = const_cast<LayerVector&>( 750 mDrawingState.layersSortedByZ); 751 visibleRegions |= lockPageFlip(currentLayers); 752 753 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 754 const Region screenRegion(hw.bounds()); 755 if (visibleRegions) { 756 Region opaqueRegion; 757 computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion); 758 759 /* 760 * rebuild the visible layer list 761 */ 762 mVisibleLayersSortedByZ.clear(); 763 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 764 size_t count = currentLayers.size(); 765 mVisibleLayersSortedByZ.setCapacity(count); 766 for (size_t i=0 ; i<count ; i++) { 767 if (!currentLayers[i]->visibleRegionScreen.isEmpty()) 768 mVisibleLayersSortedByZ.add(currentLayers[i]); 769 } 770 771#ifdef USE_COMPOSITION_BYPASS 772 sp<LayerBase> bypassLayer; 773 const size_t numVisibleLayers = mVisibleLayersSortedByZ.size(); 774 if (numVisibleLayers == 1) { 775 const sp<LayerBase>& candidate(mVisibleLayersSortedByZ[0]); 776 const Region& visibleRegion(candidate->visibleRegionScreen); 777 const Region reminder(screenRegion.subtract(visibleRegion)); 778 if (reminder.isEmpty()) { 779 // fullscreen candidate! 780 bypassLayer = candidate; 781 } 782 } 783 setBypassLayer(bypassLayer); 784#endif 785 786 mWormholeRegion = screenRegion.subtract(opaqueRegion); 787 mVisibleRegionsDirty = false; 788 } 789 790 unlockPageFlip(currentLayers); 791 mDirtyRegion.andSelf(screenRegion); 792} 793 794bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers) 795{ 796 bool recomputeVisibleRegions = false; 797 size_t count = currentLayers.size(); 798 sp<LayerBase> const* layers = currentLayers.array(); 799 for (size_t i=0 ; i<count ; i++) { 800 const sp<LayerBase>& layer(layers[i]); 801 layer->lockPageFlip(recomputeVisibleRegions); 802 } 803 return recomputeVisibleRegions; 804} 805 806void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers) 807{ 808 const GraphicPlane& plane(graphicPlane(0)); 809 const Transform& planeTransform(plane.transform()); 810 size_t count = currentLayers.size(); 811 sp<LayerBase> const* layers = currentLayers.array(); 812 for (size_t i=0 ; i<count ; i++) { 813 const sp<LayerBase>& layer(layers[i]); 814 layer->unlockPageFlip(planeTransform, mDirtyRegion); 815 } 816} 817 818 819void SurfaceFlinger::handleRepaint() 820{ 821 // compute the invalid region 822 mInvalidRegion.orSelf(mDirtyRegion); 823 if (mInvalidRegion.isEmpty()) { 824 // nothing to do 825 return; 826 } 827 828 if (UNLIKELY(mDebugRegion)) { 829 debugFlashRegions(); 830 } 831 832 // set the frame buffer 833 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 834 glMatrixMode(GL_MODELVIEW); 835 glLoadIdentity(); 836 837 uint32_t flags = hw.getFlags(); 838 if ((flags & DisplayHardware::SWAP_RECTANGLE) || 839 (flags & DisplayHardware::BUFFER_PRESERVED)) 840 { 841 // we can redraw only what's dirty, but since SWAP_RECTANGLE only 842 // takes a rectangle, we must make sure to update that whole 843 // rectangle in that case 844 if (flags & DisplayHardware::SWAP_RECTANGLE) { 845 // TODO: we really should be able to pass a region to 846 // SWAP_RECTANGLE so that we don't have to redraw all this. 847 mDirtyRegion.set(mInvalidRegion.bounds()); 848 } else { 849 // in the BUFFER_PRESERVED case, obviously, we can update only 850 // what's needed and nothing more. 851 // NOTE: this is NOT a common case, as preserving the backbuffer 852 // is costly and usually involves copying the whole update back. 853 } 854 } else { 855 if (flags & DisplayHardware::PARTIAL_UPDATES) { 856 // We need to redraw the rectangle that will be updated 857 // (pushed to the framebuffer). 858 // This is needed because PARTIAL_UPDATES only takes one 859 // rectangle instead of a region (see DisplayHardware::flip()) 860 mDirtyRegion.set(mInvalidRegion.bounds()); 861 } else { 862 // we need to redraw everything (the whole screen) 863 mDirtyRegion.set(hw.bounds()); 864 mInvalidRegion = mDirtyRegion; 865 } 866 } 867 868 // compose all surfaces 869 composeSurfaces(mDirtyRegion); 870 871 // clear the dirty regions 872 mDirtyRegion.clear(); 873} 874 875void SurfaceFlinger::composeSurfaces(const Region& dirty) 876{ 877 if (UNLIKELY(!mWormholeRegion.isEmpty())) { 878 // should never happen unless the window manager has a bug 879 // draw something... 880 drawWormhole(); 881 } 882 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 883 const size_t count = layers.size(); 884 for (size_t i=0 ; i<count ; ++i) { 885 const sp<LayerBase>& layer(layers[i]); 886 const Region clip(dirty.intersect(layer->visibleRegionScreen)); 887 if (!clip.isEmpty()) { 888 layer->draw(clip); 889 } 890 } 891} 892 893void SurfaceFlinger::unlockClients() 894{ 895 const LayerVector& drawingLayers(mDrawingState.layersSortedByZ); 896 const size_t count = drawingLayers.size(); 897 sp<LayerBase> const* const layers = drawingLayers.array(); 898 for (size_t i=0 ; i<count ; ++i) { 899 const sp<LayerBase>& layer = layers[i]; 900 layer->finishPageFlip(); 901 } 902} 903 904void SurfaceFlinger::debugFlashRegions() 905{ 906 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 907 const uint32_t flags = hw.getFlags(); 908 909 if (!((flags & DisplayHardware::SWAP_RECTANGLE) || 910 (flags & DisplayHardware::BUFFER_PRESERVED))) { 911 const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ? 912 mDirtyRegion.bounds() : hw.bounds()); 913 composeSurfaces(repaint); 914 } 915 916 TextureManager::deactivateTextures(); 917 918 glDisable(GL_BLEND); 919 glDisable(GL_DITHER); 920 glDisable(GL_SCISSOR_TEST); 921 922 static int toggle = 0; 923 toggle = 1 - toggle; 924 if (toggle) { 925 glColor4f(1, 0, 1, 1); 926 } else { 927 glColor4f(1, 1, 0, 1); 928 } 929 930 Region::const_iterator it = mDirtyRegion.begin(); 931 Region::const_iterator const end = mDirtyRegion.end(); 932 while (it != end) { 933 const Rect& r = *it++; 934 GLfloat vertices[][2] = { 935 { r.left, r.top }, 936 { r.left, r.bottom }, 937 { r.right, r.bottom }, 938 { r.right, r.top } 939 }; 940 glVertexPointer(2, GL_FLOAT, 0, vertices); 941 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 942 } 943 944 if (mInvalidRegion.isEmpty()) { 945 mDirtyRegion.dump("mDirtyRegion"); 946 mInvalidRegion.dump("mInvalidRegion"); 947 } 948 hw.flip(mInvalidRegion); 949 950 if (mDebugRegion > 1) 951 usleep(mDebugRegion * 1000); 952 953 glEnable(GL_SCISSOR_TEST); 954 //mDirtyRegion.dump("mDirtyRegion"); 955} 956 957void SurfaceFlinger::drawWormhole() const 958{ 959 const Region region(mWormholeRegion.intersect(mDirtyRegion)); 960 if (region.isEmpty()) 961 return; 962 963 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 964 const int32_t width = hw.getWidth(); 965 const int32_t height = hw.getHeight(); 966 967 glDisable(GL_BLEND); 968 glDisable(GL_DITHER); 969 970 if (LIKELY(!mDebugBackground)) { 971 glClearColor(0,0,0,0); 972 Region::const_iterator it = region.begin(); 973 Region::const_iterator const end = region.end(); 974 while (it != end) { 975 const Rect& r = *it++; 976 const GLint sy = height - (r.top + r.height()); 977 glScissor(r.left, sy, r.width(), r.height()); 978 glClear(GL_COLOR_BUFFER_BIT); 979 } 980 } else { 981 const GLshort vertices[][2] = { { 0, 0 }, { width, 0 }, 982 { width, height }, { 0, height } }; 983 const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } }; 984 glVertexPointer(2, GL_SHORT, 0, vertices); 985 glTexCoordPointer(2, GL_SHORT, 0, tcoords); 986 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 987#if defined(GL_OES_EGL_image_external) 988 if (GLExtensions::getInstance().haveTextureExternal()) { 989 glDisable(GL_TEXTURE_EXTERNAL_OES); 990 } 991#endif 992 glEnable(GL_TEXTURE_2D); 993 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 994 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 995 glMatrixMode(GL_TEXTURE); 996 glLoadIdentity(); 997 glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1); 998 Region::const_iterator it = region.begin(); 999 Region::const_iterator const end = region.end(); 1000 while (it != end) { 1001 const Rect& r = *it++; 1002 const GLint sy = height - (r.top + r.height()); 1003 glScissor(r.left, sy, r.width(), r.height()); 1004 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1005 } 1006 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1007 } 1008} 1009 1010void SurfaceFlinger::debugShowFPS() const 1011{ 1012 static int mFrameCount; 1013 static int mLastFrameCount = 0; 1014 static nsecs_t mLastFpsTime = 0; 1015 static float mFps = 0; 1016 mFrameCount++; 1017 nsecs_t now = systemTime(); 1018 nsecs_t diff = now - mLastFpsTime; 1019 if (diff > ms2ns(250)) { 1020 mFps = ((mFrameCount - mLastFrameCount) * float(s2ns(1))) / diff; 1021 mLastFpsTime = now; 1022 mLastFrameCount = mFrameCount; 1023 } 1024 // XXX: mFPS has the value we want 1025 } 1026 1027status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer) 1028{ 1029 Mutex::Autolock _l(mStateLock); 1030 addLayer_l(layer); 1031 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1032 return NO_ERROR; 1033} 1034 1035status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer) 1036{ 1037 ssize_t i = mCurrentState.layersSortedByZ.add(layer); 1038 return (i < 0) ? status_t(i) : status_t(NO_ERROR); 1039} 1040 1041ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client, 1042 const sp<LayerBaseClient>& lbc) 1043{ 1044 Mutex::Autolock _l(mStateLock); 1045 1046 // attach this layer to the client 1047 ssize_t name = client->attachLayer(lbc); 1048 1049 // add this layer to the current state list 1050 addLayer_l(lbc); 1051 1052 return name; 1053} 1054 1055status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer) 1056{ 1057 Mutex::Autolock _l(mStateLock); 1058 status_t err = purgatorizeLayer_l(layer); 1059 if (err == NO_ERROR) 1060 setTransactionFlags(eTransactionNeeded); 1061 return err; 1062} 1063 1064status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase) 1065{ 1066 sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient()); 1067 if (lbc != 0) { 1068 mLayerMap.removeItem( lbc->getSurface()->asBinder() ); 1069 } 1070 ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase); 1071 if (index >= 0) { 1072 mLayersRemoved = true; 1073 return NO_ERROR; 1074 } 1075 return status_t(index); 1076} 1077 1078status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase) 1079{ 1080 // remove the layer from the main list (through a transaction). 1081 ssize_t err = removeLayer_l(layerBase); 1082 1083 layerBase->onRemoved(); 1084 1085 // it's possible that we don't find a layer, because it might 1086 // have been destroyed already -- this is not technically an error 1087 // from the user because there is a race between Client::destroySurface(), 1088 // ~Client() and ~ISurface(). 1089 return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err; 1090} 1091 1092status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer) 1093{ 1094 layer->forceVisibilityTransaction(); 1095 setTransactionFlags(eTraversalNeeded); 1096 return NO_ERROR; 1097} 1098 1099uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags) 1100{ 1101 return android_atomic_and(~flags, &mTransactionFlags) & flags; 1102} 1103 1104uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags) 1105{ 1106 uint32_t old = android_atomic_or(flags, &mTransactionFlags); 1107 if ((old & flags)==0) { // wake the server up 1108 signalEvent(); 1109 } 1110 return old; 1111} 1112 1113void SurfaceFlinger::openGlobalTransaction() 1114{ 1115 android_atomic_inc(&mTransactionCount); 1116} 1117 1118void SurfaceFlinger::closeGlobalTransaction() 1119{ 1120 if (android_atomic_dec(&mTransactionCount) == 1) { 1121 signalEvent(); 1122 1123 // if there is a transaction with a resize, wait for it to 1124 // take effect before returning. 1125 Mutex::Autolock _l(mStateLock); 1126 while (mResizeTransationPending) { 1127 status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5)); 1128 if (CC_UNLIKELY(err != NO_ERROR)) { 1129 // just in case something goes wrong in SF, return to the 1130 // called after a few seconds. 1131 LOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!"); 1132 mResizeTransationPending = false; 1133 break; 1134 } 1135 } 1136 } 1137} 1138 1139status_t SurfaceFlinger::freezeDisplay(DisplayID dpy, uint32_t flags) 1140{ 1141 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1142 return BAD_VALUE; 1143 1144 Mutex::Autolock _l(mStateLock); 1145 mCurrentState.freezeDisplay = 1; 1146 setTransactionFlags(eTransactionNeeded); 1147 1148 // flags is intended to communicate some sort of animation behavior 1149 // (for instance fading) 1150 return NO_ERROR; 1151} 1152 1153status_t SurfaceFlinger::unfreezeDisplay(DisplayID dpy, uint32_t flags) 1154{ 1155 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1156 return BAD_VALUE; 1157 1158 Mutex::Autolock _l(mStateLock); 1159 mCurrentState.freezeDisplay = 0; 1160 setTransactionFlags(eTransactionNeeded); 1161 1162 // flags is intended to communicate some sort of animation behavior 1163 // (for instance fading) 1164 return NO_ERROR; 1165} 1166 1167int SurfaceFlinger::setOrientation(DisplayID dpy, 1168 int orientation, uint32_t flags) 1169{ 1170 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1171 return BAD_VALUE; 1172 1173 Mutex::Autolock _l(mStateLock); 1174 if (mCurrentState.orientation != orientation) { 1175 if (uint32_t(orientation)<=eOrientation270 || orientation==42) { 1176 mCurrentState.orientationType = flags; 1177 mCurrentState.orientation = orientation; 1178 setTransactionFlags(eTransactionNeeded); 1179 mTransactionCV.wait(mStateLock); 1180 } else { 1181 orientation = BAD_VALUE; 1182 } 1183 } 1184 return orientation; 1185} 1186 1187sp<ISurface> SurfaceFlinger::createSurface(const sp<Client>& client, int pid, 1188 const String8& name, ISurfaceComposerClient::surface_data_t* params, 1189 DisplayID d, uint32_t w, uint32_t h, PixelFormat format, 1190 uint32_t flags) 1191{ 1192 sp<LayerBaseClient> layer; 1193 sp<LayerBaseClient::Surface> surfaceHandle; 1194 1195 if (int32_t(w|h) < 0) { 1196 LOGE("createSurface() failed, w or h is negative (w=%d, h=%d)", 1197 int(w), int(h)); 1198 return surfaceHandle; 1199 } 1200 1201 //LOGD("createSurface for pid %d (%d x %d)", pid, w, h); 1202 sp<Layer> normalLayer; 1203 switch (flags & eFXSurfaceMask) { 1204 case eFXSurfaceNormal: 1205 if (UNLIKELY(flags & ePushBuffers)) { 1206 layer = createPushBuffersSurface(client, d, w, h, flags); 1207 } else { 1208 normalLayer = createNormalSurface(client, d, w, h, flags, format); 1209 layer = normalLayer; 1210 } 1211 break; 1212 case eFXSurfaceBlur: 1213 layer = createBlurSurface(client, d, w, h, flags); 1214 break; 1215 case eFXSurfaceDim: 1216 layer = createDimSurface(client, d, w, h, flags); 1217 break; 1218 } 1219 1220 if (layer != 0) { 1221 layer->initStates(w, h, flags); 1222 layer->setName(name); 1223 ssize_t token = addClientLayer(client, layer); 1224 1225 surfaceHandle = layer->getSurface(); 1226 if (surfaceHandle != 0) { 1227 params->token = token; 1228 params->identity = surfaceHandle->getIdentity(); 1229 params->width = w; 1230 params->height = h; 1231 params->format = format; 1232 if (normalLayer != 0) { 1233 Mutex::Autolock _l(mStateLock); 1234 mLayerMap.add(surfaceHandle->asBinder(), normalLayer); 1235 } 1236 } 1237 1238 setTransactionFlags(eTransactionNeeded); 1239 } 1240 1241 return surfaceHandle; 1242} 1243 1244sp<Layer> SurfaceFlinger::createNormalSurface( 1245 const sp<Client>& client, DisplayID display, 1246 uint32_t w, uint32_t h, uint32_t flags, 1247 PixelFormat& format) 1248{ 1249 // initialize the surfaces 1250 switch (format) { // TODO: take h/w into account 1251 case PIXEL_FORMAT_TRANSPARENT: 1252 case PIXEL_FORMAT_TRANSLUCENT: 1253 format = PIXEL_FORMAT_RGBA_8888; 1254 break; 1255 case PIXEL_FORMAT_OPAQUE: 1256#ifdef NO_RGBX_8888 1257 format = PIXEL_FORMAT_RGB_565; 1258#else 1259 format = PIXEL_FORMAT_RGBX_8888; 1260#endif 1261 break; 1262 } 1263 1264#ifdef NO_RGBX_8888 1265 if (format == PIXEL_FORMAT_RGBX_8888) 1266 format = PIXEL_FORMAT_RGBA_8888; 1267#endif 1268 1269 sp<Layer> layer = new Layer(this, display, client); 1270 status_t err = layer->setBuffers(w, h, format, flags); 1271 if (LIKELY(err != NO_ERROR)) { 1272 LOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err)); 1273 layer.clear(); 1274 } 1275 return layer; 1276} 1277 1278sp<LayerBlur> SurfaceFlinger::createBlurSurface( 1279 const sp<Client>& client, DisplayID display, 1280 uint32_t w, uint32_t h, uint32_t flags) 1281{ 1282 sp<LayerBlur> layer = new LayerBlur(this, display, client); 1283 layer->initStates(w, h, flags); 1284 return layer; 1285} 1286 1287sp<LayerDim> SurfaceFlinger::createDimSurface( 1288 const sp<Client>& client, DisplayID display, 1289 uint32_t w, uint32_t h, uint32_t flags) 1290{ 1291 sp<LayerDim> layer = new LayerDim(this, display, client); 1292 layer->initStates(w, h, flags); 1293 return layer; 1294} 1295 1296sp<LayerBuffer> SurfaceFlinger::createPushBuffersSurface( 1297 const sp<Client>& client, DisplayID display, 1298 uint32_t w, uint32_t h, uint32_t flags) 1299{ 1300 sp<LayerBuffer> layer = new LayerBuffer(this, display, client); 1301 layer->initStates(w, h, flags); 1302 return layer; 1303} 1304 1305status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid) 1306{ 1307 /* 1308 * called by the window manager, when a surface should be marked for 1309 * destruction. 1310 * 1311 * The surface is removed from the current and drawing lists, but placed 1312 * in the purgatory queue, so it's not destroyed right-away (we need 1313 * to wait for all client's references to go away first). 1314 */ 1315 1316 status_t err = NAME_NOT_FOUND; 1317 Mutex::Autolock _l(mStateLock); 1318 sp<LayerBaseClient> layer = client->getLayerUser(sid); 1319 if (layer != 0) { 1320 err = purgatorizeLayer_l(layer); 1321 if (err == NO_ERROR) { 1322 setTransactionFlags(eTransactionNeeded); 1323 } 1324 } 1325 return err; 1326} 1327 1328status_t SurfaceFlinger::destroySurface(const sp<LayerBaseClient>& layer) 1329{ 1330 // called by ~ISurface() when all references are gone 1331 1332 class MessageDestroySurface : public MessageBase { 1333 SurfaceFlinger* flinger; 1334 sp<LayerBaseClient> layer; 1335 public: 1336 MessageDestroySurface( 1337 SurfaceFlinger* flinger, const sp<LayerBaseClient>& layer) 1338 : flinger(flinger), layer(layer) { } 1339 virtual bool handler() { 1340 sp<LayerBaseClient> l(layer); 1341 layer.clear(); // clear it outside of the lock; 1342 Mutex::Autolock _l(flinger->mStateLock); 1343 /* 1344 * remove the layer from the current list -- chances are that it's 1345 * not in the list anyway, because it should have been removed 1346 * already upon request of the client (eg: window manager). 1347 * However, a buggy client could have not done that. 1348 * Since we know we don't have any more clients, we don't need 1349 * to use the purgatory. 1350 */ 1351 status_t err = flinger->removeLayer_l(l); 1352 LOGE_IF(err<0 && err != NAME_NOT_FOUND, 1353 "error removing layer=%p (%s)", l.get(), strerror(-err)); 1354 return true; 1355 } 1356 }; 1357 1358 postMessageAsync( new MessageDestroySurface(this, layer) ); 1359 return NO_ERROR; 1360} 1361 1362status_t SurfaceFlinger::setClientState( 1363 const sp<Client>& client, 1364 int32_t count, 1365 const layer_state_t* states) 1366{ 1367 Mutex::Autolock _l(mStateLock); 1368 uint32_t flags = 0; 1369 for (int i=0 ; i<count ; i++) { 1370 const layer_state_t& s(states[i]); 1371 sp<LayerBaseClient> layer(client->getLayerUser(s.surface)); 1372 if (layer != 0) { 1373 const uint32_t what = s.what; 1374 if (what & ePositionChanged) { 1375 if (layer->setPosition(s.x, s.y)) 1376 flags |= eTraversalNeeded; 1377 } 1378 if (what & eLayerChanged) { 1379 ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer); 1380 if (layer->setLayer(s.z)) { 1381 mCurrentState.layersSortedByZ.removeAt(idx); 1382 mCurrentState.layersSortedByZ.add(layer); 1383 // we need traversal (state changed) 1384 // AND transaction (list changed) 1385 flags |= eTransactionNeeded|eTraversalNeeded; 1386 } 1387 } 1388 if (what & eSizeChanged) { 1389 if (layer->setSize(s.w, s.h)) { 1390 flags |= eTraversalNeeded; 1391 mResizeTransationPending = true; 1392 } 1393 } 1394 if (what & eAlphaChanged) { 1395 if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f))) 1396 flags |= eTraversalNeeded; 1397 } 1398 if (what & eMatrixChanged) { 1399 if (layer->setMatrix(s.matrix)) 1400 flags |= eTraversalNeeded; 1401 } 1402 if (what & eTransparentRegionChanged) { 1403 if (layer->setTransparentRegionHint(s.transparentRegion)) 1404 flags |= eTraversalNeeded; 1405 } 1406 if (what & eVisibilityChanged) { 1407 if (layer->setFlags(s.flags, s.mask)) 1408 flags |= eTraversalNeeded; 1409 } 1410 } 1411 } 1412 if (flags) { 1413 setTransactionFlags(flags); 1414 } 1415 return NO_ERROR; 1416} 1417 1418void SurfaceFlinger::screenReleased(int dpy) 1419{ 1420 // this may be called by a signal handler, we can't do too much in here 1421 android_atomic_or(eConsoleReleased, &mConsoleSignals); 1422 signalEvent(); 1423} 1424 1425void SurfaceFlinger::screenAcquired(int dpy) 1426{ 1427 // this may be called by a signal handler, we can't do too much in here 1428 android_atomic_or(eConsoleAcquired, &mConsoleSignals); 1429 signalEvent(); 1430} 1431 1432status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args) 1433{ 1434 const size_t SIZE = 1024; 1435 char buffer[SIZE]; 1436 String8 result; 1437 if (!mDump.checkCalling()) { 1438 snprintf(buffer, SIZE, "Permission Denial: " 1439 "can't dump SurfaceFlinger from pid=%d, uid=%d\n", 1440 IPCThreadState::self()->getCallingPid(), 1441 IPCThreadState::self()->getCallingUid()); 1442 result.append(buffer); 1443 } else { 1444 1445 // figure out if we're stuck somewhere 1446 const nsecs_t now = systemTime(); 1447 const nsecs_t inSwapBuffers(mDebugInSwapBuffers); 1448 const nsecs_t inTransaction(mDebugInTransaction); 1449 nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0; 1450 nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0; 1451 1452 // Try to get the main lock, but don't insist if we can't 1453 // (this would indicate SF is stuck, but we want to be able to 1454 // print something in dumpsys). 1455 int retry = 3; 1456 while (mStateLock.tryLock()<0 && --retry>=0) { 1457 usleep(1000000); 1458 } 1459 const bool locked(retry >= 0); 1460 if (!locked) { 1461 snprintf(buffer, SIZE, 1462 "SurfaceFlinger appears to be unresponsive, " 1463 "dumping anyways (no locks held)\n"); 1464 result.append(buffer); 1465 } 1466 1467 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1468 const size_t count = currentLayers.size(); 1469 for (size_t i=0 ; i<count ; i++) { 1470 const sp<LayerBase>& layer(currentLayers[i]); 1471 layer->dump(result, buffer, SIZE); 1472 const Layer::State& s(layer->drawingState()); 1473 s.transparentRegion.dump(result, "transparentRegion"); 1474 layer->transparentRegionScreen.dump(result, "transparentRegionScreen"); 1475 layer->visibleRegionScreen.dump(result, "visibleRegionScreen"); 1476 } 1477 1478 mWormholeRegion.dump(result, "WormholeRegion"); 1479 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1480 snprintf(buffer, SIZE, 1481 " display frozen: %s, freezeCount=%d, orientation=%d, bypass=%p, canDraw=%d\n", 1482 mFreezeDisplay?"yes":"no", mFreezeCount, 1483 mCurrentState.orientation, mBypassLayer.unsafe_get(), hw.canDraw()); 1484 result.append(buffer); 1485 snprintf(buffer, SIZE, 1486 " last eglSwapBuffers() time: %f us\n" 1487 " last transaction time : %f us\n", 1488 mLastSwapBufferTime/1000.0, mLastTransactionTime/1000.0); 1489 result.append(buffer); 1490 1491 if (inSwapBuffersDuration || !locked) { 1492 snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n", 1493 inSwapBuffersDuration/1000.0); 1494 result.append(buffer); 1495 } 1496 1497 if (inTransactionDuration || !locked) { 1498 snprintf(buffer, SIZE, " transaction time: %f us\n", 1499 inTransactionDuration/1000.0); 1500 result.append(buffer); 1501 } 1502 1503 const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get()); 1504 alloc.dump(result); 1505 1506 if (locked) { 1507 mStateLock.unlock(); 1508 } 1509 } 1510 write(fd, result.string(), result.size()); 1511 return NO_ERROR; 1512} 1513 1514status_t SurfaceFlinger::onTransact( 1515 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1516{ 1517 switch (code) { 1518 case CREATE_CONNECTION: 1519 case OPEN_GLOBAL_TRANSACTION: 1520 case CLOSE_GLOBAL_TRANSACTION: 1521 case SET_ORIENTATION: 1522 case FREEZE_DISPLAY: 1523 case UNFREEZE_DISPLAY: 1524 case BOOT_FINISHED: 1525 case TURN_ELECTRON_BEAM_OFF: 1526 case TURN_ELECTRON_BEAM_ON: 1527 { 1528 // codes that require permission check 1529 IPCThreadState* ipc = IPCThreadState::self(); 1530 const int pid = ipc->getCallingPid(); 1531 const int uid = ipc->getCallingUid(); 1532 if ((uid != AID_GRAPHICS) && !mAccessSurfaceFlinger.check(pid, uid)) { 1533 LOGE("Permission Denial: " 1534 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1535 return PERMISSION_DENIED; 1536 } 1537 break; 1538 } 1539 case CAPTURE_SCREEN: 1540 { 1541 // codes that require permission check 1542 IPCThreadState* ipc = IPCThreadState::self(); 1543 const int pid = ipc->getCallingPid(); 1544 const int uid = ipc->getCallingUid(); 1545 if ((uid != AID_GRAPHICS) && !mReadFramebuffer.check(pid, uid)) { 1546 LOGE("Permission Denial: " 1547 "can't read framebuffer pid=%d, uid=%d", pid, uid); 1548 return PERMISSION_DENIED; 1549 } 1550 break; 1551 } 1552 } 1553 1554 status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags); 1555 if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) { 1556 CHECK_INTERFACE(ISurfaceComposer, data, reply); 1557 if (UNLIKELY(!mHardwareTest.checkCalling())) { 1558 IPCThreadState* ipc = IPCThreadState::self(); 1559 const int pid = ipc->getCallingPid(); 1560 const int uid = ipc->getCallingUid(); 1561 LOGE("Permission Denial: " 1562 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1563 return PERMISSION_DENIED; 1564 } 1565 int n; 1566 switch (code) { 1567 case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE 1568 case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE 1569 return NO_ERROR; 1570 case 1002: // SHOW_UPDATES 1571 n = data.readInt32(); 1572 mDebugRegion = n ? n : (mDebugRegion ? 0 : 1); 1573 return NO_ERROR; 1574 case 1003: // SHOW_BACKGROUND 1575 n = data.readInt32(); 1576 mDebugBackground = n ? 1 : 0; 1577 return NO_ERROR; 1578 case 1004:{ // repaint everything 1579 Mutex::Autolock _l(mStateLock); 1580 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1581 mDirtyRegion.set(hw.bounds()); // careful that's not thread-safe 1582 signalEvent(); 1583 return NO_ERROR; 1584 } 1585 case 1005:{ // force transaction 1586 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1587 return NO_ERROR; 1588 } 1589 case 1006:{ // enable/disable GraphicLog 1590 int enabled = data.readInt32(); 1591 GraphicLog::getInstance().setEnabled(enabled); 1592 return NO_ERROR; 1593 } 1594 case 1007: // set mFreezeCount 1595 mFreezeCount = data.readInt32(); 1596 mFreezeDisplayTime = 0; 1597 return NO_ERROR; 1598 case 1010: // interrogate. 1599 reply->writeInt32(0); 1600 reply->writeInt32(0); 1601 reply->writeInt32(mDebugRegion); 1602 reply->writeInt32(mDebugBackground); 1603 return NO_ERROR; 1604 case 1013: { 1605 Mutex::Autolock _l(mStateLock); 1606 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1607 reply->writeInt32(hw.getPageFlipCount()); 1608 } 1609 return NO_ERROR; 1610 } 1611 } 1612 return err; 1613} 1614 1615// --------------------------------------------------------------------------- 1616 1617status_t SurfaceFlinger::renderScreenToTextureLocked(DisplayID dpy, 1618 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1619{ 1620 if (!GLExtensions::getInstance().haveFramebufferObject()) 1621 return INVALID_OPERATION; 1622 1623 // get screen geometry 1624 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 1625 const uint32_t hw_w = hw.getWidth(); 1626 const uint32_t hw_h = hw.getHeight(); 1627 GLfloat u = 1; 1628 GLfloat v = 1; 1629 1630 // make sure to clear all GL error flags 1631 while ( glGetError() != GL_NO_ERROR ) ; 1632 1633 // create a FBO 1634 GLuint name, tname; 1635 glGenTextures(1, &tname); 1636 glBindTexture(GL_TEXTURE_2D, tname); 1637 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1638 hw_w, hw_h, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1639 if (glGetError() != GL_NO_ERROR) { 1640 while ( glGetError() != GL_NO_ERROR ) ; 1641 GLint tw = (2 << (31 - clz(hw_w))); 1642 GLint th = (2 << (31 - clz(hw_h))); 1643 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1644 tw, th, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1645 u = GLfloat(hw_w) / tw; 1646 v = GLfloat(hw_h) / th; 1647 } 1648 glGenFramebuffersOES(1, &name); 1649 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 1650 glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, 1651 GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0); 1652 1653 // redraw the screen entirely... 1654 glClearColor(0,0,0,1); 1655 glClear(GL_COLOR_BUFFER_BIT); 1656 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1657 const size_t count = layers.size(); 1658 for (size_t i=0 ; i<count ; ++i) { 1659 const sp<LayerBase>& layer(layers[i]); 1660 layer->drawForSreenShot(); 1661 } 1662 1663 // back to main framebuffer 1664 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1665 glDisable(GL_SCISSOR_TEST); 1666 glDeleteFramebuffersOES(1, &name); 1667 1668 *textureName = tname; 1669 *uOut = u; 1670 *vOut = v; 1671 return NO_ERROR; 1672} 1673 1674// --------------------------------------------------------------------------- 1675 1676status_t SurfaceFlinger::electronBeamOffAnimationImplLocked() 1677{ 1678 status_t result = PERMISSION_DENIED; 1679 1680 if (!GLExtensions::getInstance().haveFramebufferObject()) 1681 return INVALID_OPERATION; 1682 1683 // get screen geometry 1684 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1685 const uint32_t hw_w = hw.getWidth(); 1686 const uint32_t hw_h = hw.getHeight(); 1687 const Region screenBounds(hw.bounds()); 1688 1689 GLfloat u, v; 1690 GLuint tname; 1691 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1692 if (result != NO_ERROR) { 1693 return result; 1694 } 1695 1696 GLfloat vtx[8]; 1697 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1698 glEnable(GL_TEXTURE_2D); 1699 glBindTexture(GL_TEXTURE_2D, tname); 1700 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1701 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1702 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1703 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1704 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1705 glVertexPointer(2, GL_FLOAT, 0, vtx); 1706 1707 class s_curve_interpolator { 1708 const float nbFrames, s, v; 1709 public: 1710 s_curve_interpolator(int nbFrames, float s) 1711 : nbFrames(1.0f / (nbFrames-1)), s(s), 1712 v(1.0f + expf(-s + 0.5f*s)) { 1713 } 1714 float operator()(int f) { 1715 const float x = f * nbFrames; 1716 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1717 } 1718 }; 1719 1720 class v_stretch { 1721 const GLfloat hw_w, hw_h; 1722 public: 1723 v_stretch(uint32_t hw_w, uint32_t hw_h) 1724 : hw_w(hw_w), hw_h(hw_h) { 1725 } 1726 void operator()(GLfloat* vtx, float v) { 1727 const GLfloat w = hw_w + (hw_w * v); 1728 const GLfloat h = hw_h - (hw_h * v); 1729 const GLfloat x = (hw_w - w) * 0.5f; 1730 const GLfloat y = (hw_h - h) * 0.5f; 1731 vtx[0] = x; vtx[1] = y; 1732 vtx[2] = x; vtx[3] = y + h; 1733 vtx[4] = x + w; vtx[5] = y + h; 1734 vtx[6] = x + w; vtx[7] = y; 1735 } 1736 }; 1737 1738 class h_stretch { 1739 const GLfloat hw_w, hw_h; 1740 public: 1741 h_stretch(uint32_t hw_w, uint32_t hw_h) 1742 : hw_w(hw_w), hw_h(hw_h) { 1743 } 1744 void operator()(GLfloat* vtx, float v) { 1745 const GLfloat w = hw_w - (hw_w * v); 1746 const GLfloat h = 1.0f; 1747 const GLfloat x = (hw_w - w) * 0.5f; 1748 const GLfloat y = (hw_h - h) * 0.5f; 1749 vtx[0] = x; vtx[1] = y; 1750 vtx[2] = x; vtx[3] = y + h; 1751 vtx[4] = x + w; vtx[5] = y + h; 1752 vtx[6] = x + w; vtx[7] = y; 1753 } 1754 }; 1755 1756 // the full animation is 24 frames 1757 const int nbFrames = 12; 1758 s_curve_interpolator itr(nbFrames, 7.5f); 1759 s_curve_interpolator itg(nbFrames, 8.0f); 1760 s_curve_interpolator itb(nbFrames, 8.5f); 1761 1762 v_stretch vverts(hw_w, hw_h); 1763 glEnable(GL_BLEND); 1764 glBlendFunc(GL_ONE, GL_ONE); 1765 for (int i=0 ; i<nbFrames ; i++) { 1766 float x, y, w, h; 1767 const float vr = itr(i); 1768 const float vg = itg(i); 1769 const float vb = itb(i); 1770 1771 // clear screen 1772 glColorMask(1,1,1,1); 1773 glClear(GL_COLOR_BUFFER_BIT); 1774 glEnable(GL_TEXTURE_2D); 1775 1776 // draw the red plane 1777 vverts(vtx, vr); 1778 glColorMask(1,0,0,1); 1779 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1780 1781 // draw the green plane 1782 vverts(vtx, vg); 1783 glColorMask(0,1,0,1); 1784 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1785 1786 // draw the blue plane 1787 vverts(vtx, vb); 1788 glColorMask(0,0,1,1); 1789 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1790 1791 // draw the white highlight (we use the last vertices) 1792 glDisable(GL_TEXTURE_2D); 1793 glColorMask(1,1,1,1); 1794 glColor4f(vg, vg, vg, 1); 1795 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1796 hw.flip(screenBounds); 1797 } 1798 1799 h_stretch hverts(hw_w, hw_h); 1800 glDisable(GL_BLEND); 1801 glDisable(GL_TEXTURE_2D); 1802 glColorMask(1,1,1,1); 1803 for (int i=0 ; i<nbFrames ; i++) { 1804 const float v = itg(i); 1805 hverts(vtx, v); 1806 glClear(GL_COLOR_BUFFER_BIT); 1807 glColor4f(1-v, 1-v, 1-v, 1); 1808 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1809 hw.flip(screenBounds); 1810 } 1811 1812 glColorMask(1,1,1,1); 1813 glEnable(GL_SCISSOR_TEST); 1814 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1815 glDeleteTextures(1, &tname); 1816 return NO_ERROR; 1817} 1818 1819status_t SurfaceFlinger::electronBeamOnAnimationImplLocked() 1820{ 1821 status_t result = PERMISSION_DENIED; 1822 1823 if (!GLExtensions::getInstance().haveFramebufferObject()) 1824 return INVALID_OPERATION; 1825 1826 1827 // get screen geometry 1828 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1829 const uint32_t hw_w = hw.getWidth(); 1830 const uint32_t hw_h = hw.getHeight(); 1831 const Region screenBounds(hw.bounds()); 1832 1833 GLfloat u, v; 1834 GLuint tname; 1835 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1836 if (result != NO_ERROR) { 1837 return result; 1838 } 1839 1840 // back to main framebuffer 1841 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1842 glDisable(GL_SCISSOR_TEST); 1843 1844 GLfloat vtx[8]; 1845 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1846 glEnable(GL_TEXTURE_2D); 1847 glBindTexture(GL_TEXTURE_2D, tname); 1848 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 1849 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1850 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1851 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1852 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1853 glVertexPointer(2, GL_FLOAT, 0, vtx); 1854 1855 class s_curve_interpolator { 1856 const float nbFrames, s, v; 1857 public: 1858 s_curve_interpolator(int nbFrames, float s) 1859 : nbFrames(1.0f / (nbFrames-1)), s(s), 1860 v(1.0f + expf(-s + 0.5f*s)) { 1861 } 1862 float operator()(int f) { 1863 const float x = f * nbFrames; 1864 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1865 } 1866 }; 1867 1868 class v_stretch { 1869 const GLfloat hw_w, hw_h; 1870 public: 1871 v_stretch(uint32_t hw_w, uint32_t hw_h) 1872 : hw_w(hw_w), hw_h(hw_h) { 1873 } 1874 void operator()(GLfloat* vtx, float v) { 1875 const GLfloat w = hw_w + (hw_w * v); 1876 const GLfloat h = hw_h - (hw_h * v); 1877 const GLfloat x = (hw_w - w) * 0.5f; 1878 const GLfloat y = (hw_h - h) * 0.5f; 1879 vtx[0] = x; vtx[1] = y; 1880 vtx[2] = x; vtx[3] = y + h; 1881 vtx[4] = x + w; vtx[5] = y + h; 1882 vtx[6] = x + w; vtx[7] = y; 1883 } 1884 }; 1885 1886 class h_stretch { 1887 const GLfloat hw_w, hw_h; 1888 public: 1889 h_stretch(uint32_t hw_w, uint32_t hw_h) 1890 : hw_w(hw_w), hw_h(hw_h) { 1891 } 1892 void operator()(GLfloat* vtx, float v) { 1893 const GLfloat w = hw_w - (hw_w * v); 1894 const GLfloat h = 1.0f; 1895 const GLfloat x = (hw_w - w) * 0.5f; 1896 const GLfloat y = (hw_h - h) * 0.5f; 1897 vtx[0] = x; vtx[1] = y; 1898 vtx[2] = x; vtx[3] = y + h; 1899 vtx[4] = x + w; vtx[5] = y + h; 1900 vtx[6] = x + w; vtx[7] = y; 1901 } 1902 }; 1903 1904 // the full animation is 12 frames 1905 int nbFrames = 8; 1906 s_curve_interpolator itr(nbFrames, 7.5f); 1907 s_curve_interpolator itg(nbFrames, 8.0f); 1908 s_curve_interpolator itb(nbFrames, 8.5f); 1909 1910 h_stretch hverts(hw_w, hw_h); 1911 glDisable(GL_BLEND); 1912 glDisable(GL_TEXTURE_2D); 1913 glColorMask(1,1,1,1); 1914 for (int i=nbFrames-1 ; i>=0 ; i--) { 1915 const float v = itg(i); 1916 hverts(vtx, v); 1917 glClear(GL_COLOR_BUFFER_BIT); 1918 glColor4f(1-v, 1-v, 1-v, 1); 1919 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1920 hw.flip(screenBounds); 1921 } 1922 1923 nbFrames = 4; 1924 v_stretch vverts(hw_w, hw_h); 1925 glEnable(GL_BLEND); 1926 glBlendFunc(GL_ONE, GL_ONE); 1927 for (int i=nbFrames-1 ; i>=0 ; i--) { 1928 float x, y, w, h; 1929 const float vr = itr(i); 1930 const float vg = itg(i); 1931 const float vb = itb(i); 1932 1933 // clear screen 1934 glColorMask(1,1,1,1); 1935 glClear(GL_COLOR_BUFFER_BIT); 1936 glEnable(GL_TEXTURE_2D); 1937 1938 // draw the red plane 1939 vverts(vtx, vr); 1940 glColorMask(1,0,0,1); 1941 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1942 1943 // draw the green plane 1944 vverts(vtx, vg); 1945 glColorMask(0,1,0,1); 1946 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1947 1948 // draw the blue plane 1949 vverts(vtx, vb); 1950 glColorMask(0,0,1,1); 1951 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1952 1953 hw.flip(screenBounds); 1954 } 1955 1956 glColorMask(1,1,1,1); 1957 glEnable(GL_SCISSOR_TEST); 1958 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1959 glDeleteTextures(1, &tname); 1960 1961 return NO_ERROR; 1962} 1963 1964// --------------------------------------------------------------------------- 1965 1966status_t SurfaceFlinger::turnElectronBeamOffImplLocked(int32_t mode) 1967{ 1968 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 1969 if (!hw.canDraw()) { 1970 // we're already off 1971 return NO_ERROR; 1972 } 1973 if (mode & ISurfaceComposer::eElectronBeamAnimationOff) { 1974 electronBeamOffAnimationImplLocked(); 1975 } 1976 1977 // always clear the whole screen at the end of the animation 1978 glClearColor(0,0,0,1); 1979 glDisable(GL_SCISSOR_TEST); 1980 glClear(GL_COLOR_BUFFER_BIT); 1981 glEnable(GL_SCISSOR_TEST); 1982 hw.flip( Region(hw.bounds()) ); 1983 1984 hw.setCanDraw(false); 1985 return NO_ERROR; 1986} 1987 1988status_t SurfaceFlinger::turnElectronBeamOff(int32_t mode) 1989{ 1990 class MessageTurnElectronBeamOff : public MessageBase { 1991 SurfaceFlinger* flinger; 1992 int32_t mode; 1993 status_t result; 1994 public: 1995 MessageTurnElectronBeamOff(SurfaceFlinger* flinger, int32_t mode) 1996 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 1997 } 1998 status_t getResult() const { 1999 return result; 2000 } 2001 virtual bool handler() { 2002 Mutex::Autolock _l(flinger->mStateLock); 2003 result = flinger->turnElectronBeamOffImplLocked(mode); 2004 return true; 2005 } 2006 }; 2007 2008 sp<MessageBase> msg = new MessageTurnElectronBeamOff(this, mode); 2009 status_t res = postMessageSync(msg); 2010 if (res == NO_ERROR) { 2011 res = static_cast<MessageTurnElectronBeamOff*>( msg.get() )->getResult(); 2012 2013 // work-around: when the power-manager calls us we activate the 2014 // animation. eventually, the "on" animation will be called 2015 // by the power-manager itself 2016 mElectronBeamAnimationMode = mode; 2017 } 2018 return res; 2019} 2020 2021// --------------------------------------------------------------------------- 2022 2023status_t SurfaceFlinger::turnElectronBeamOnImplLocked(int32_t mode) 2024{ 2025 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2026 if (hw.canDraw()) { 2027 // we're already on 2028 return NO_ERROR; 2029 } 2030 if (mode & ISurfaceComposer::eElectronBeamAnimationOn) { 2031 electronBeamOnAnimationImplLocked(); 2032 } 2033 hw.setCanDraw(true); 2034 2035 // make sure to redraw the whole screen when the animation is done 2036 mDirtyRegion.set(hw.bounds()); 2037 signalEvent(); 2038 2039 return NO_ERROR; 2040} 2041 2042status_t SurfaceFlinger::turnElectronBeamOn(int32_t mode) 2043{ 2044 class MessageTurnElectronBeamOn : public MessageBase { 2045 SurfaceFlinger* flinger; 2046 int32_t mode; 2047 status_t result; 2048 public: 2049 MessageTurnElectronBeamOn(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->turnElectronBeamOnImplLocked(mode); 2058 return true; 2059 } 2060 }; 2061 2062 postMessageAsync( new MessageTurnElectronBeamOn(this, mode) ); 2063 return NO_ERROR; 2064} 2065 2066// --------------------------------------------------------------------------- 2067 2068status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy, 2069 sp<IMemoryHeap>* heap, 2070 uint32_t* w, uint32_t* h, PixelFormat* f, 2071 uint32_t sw, uint32_t sh) 2072{ 2073 status_t result = PERMISSION_DENIED; 2074 2075 // only one display supported for now 2076 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2077 return BAD_VALUE; 2078 2079 if (!GLExtensions::getInstance().haveFramebufferObject()) 2080 return INVALID_OPERATION; 2081 2082 // get screen geometry 2083 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 2084 const uint32_t hw_w = hw.getWidth(); 2085 const uint32_t hw_h = hw.getHeight(); 2086 2087 if ((sw > hw_w) || (sh > hw_h)) 2088 return BAD_VALUE; 2089 2090 sw = (!sw) ? hw_w : sw; 2091 sh = (!sh) ? hw_h : sh; 2092 const size_t size = sw * sh * 4; 2093 2094 // make sure to clear all GL error flags 2095 while ( glGetError() != GL_NO_ERROR ) ; 2096 2097 // create a FBO 2098 GLuint name, tname; 2099 glGenRenderbuffersOES(1, &tname); 2100 glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname); 2101 glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh); 2102 glGenFramebuffersOES(1, &name); 2103 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 2104 glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, 2105 GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname); 2106 2107 GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES); 2108 if (status == GL_FRAMEBUFFER_COMPLETE_OES) { 2109 2110 // invert everything, b/c glReadPixel() below will invert the FB 2111 glViewport(0, 0, sw, sh); 2112 glMatrixMode(GL_PROJECTION); 2113 glPushMatrix(); 2114 glLoadIdentity(); 2115 glOrthof(0, hw_w, 0, hw_h, 0, 1); 2116 glMatrixMode(GL_MODELVIEW); 2117 2118 // redraw the screen entirely... 2119 glClearColor(0,0,0,1); 2120 glClear(GL_COLOR_BUFFER_BIT); 2121 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 2122 const size_t count = layers.size(); 2123 for (size_t i=0 ; i<count ; ++i) { 2124 const sp<LayerBase>& layer(layers[i]); 2125 layer->drawForSreenShot(); 2126 } 2127 2128 // XXX: this is needed on tegra 2129 glScissor(0, 0, sw, sh); 2130 2131 // check for errors and return screen capture 2132 if (glGetError() != GL_NO_ERROR) { 2133 // error while rendering 2134 result = INVALID_OPERATION; 2135 } else { 2136 // allocate shared memory large enough to hold the 2137 // screen capture 2138 sp<MemoryHeapBase> base( 2139 new MemoryHeapBase(size, 0, "screen-capture") ); 2140 void* const ptr = base->getBase(); 2141 if (ptr) { 2142 // capture the screen with glReadPixels() 2143 glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr); 2144 if (glGetError() == GL_NO_ERROR) { 2145 *heap = base; 2146 *w = sw; 2147 *h = sh; 2148 *f = PIXEL_FORMAT_RGBA_8888; 2149 result = NO_ERROR; 2150 } 2151 } else { 2152 result = NO_MEMORY; 2153 } 2154 } 2155 2156 glEnable(GL_SCISSOR_TEST); 2157 glViewport(0, 0, hw_w, hw_h); 2158 glMatrixMode(GL_PROJECTION); 2159 glPopMatrix(); 2160 glMatrixMode(GL_MODELVIEW); 2161 2162 2163 } else { 2164 result = BAD_VALUE; 2165 } 2166 2167 // release FBO resources 2168 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 2169 glDeleteRenderbuffersOES(1, &tname); 2170 glDeleteFramebuffersOES(1, &name); 2171 return result; 2172} 2173 2174 2175status_t SurfaceFlinger::captureScreen(DisplayID dpy, 2176 sp<IMemoryHeap>* heap, 2177 uint32_t* width, uint32_t* height, PixelFormat* format, 2178 uint32_t sw, uint32_t sh) 2179{ 2180 // only one display supported for now 2181 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2182 return BAD_VALUE; 2183 2184 if (!GLExtensions::getInstance().haveFramebufferObject()) 2185 return INVALID_OPERATION; 2186 2187 class MessageCaptureScreen : public MessageBase { 2188 SurfaceFlinger* flinger; 2189 DisplayID dpy; 2190 sp<IMemoryHeap>* heap; 2191 uint32_t* w; 2192 uint32_t* h; 2193 PixelFormat* f; 2194 uint32_t sw; 2195 uint32_t sh; 2196 status_t result; 2197 public: 2198 MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy, 2199 sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f, 2200 uint32_t sw, uint32_t sh) 2201 : flinger(flinger), dpy(dpy), 2202 heap(heap), w(w), h(h), f(f), sw(sw), sh(sh), result(PERMISSION_DENIED) 2203 { 2204 } 2205 status_t getResult() const { 2206 return result; 2207 } 2208 virtual bool handler() { 2209 Mutex::Autolock _l(flinger->mStateLock); 2210 2211 // if we have secure windows, never allow the screen capture 2212 if (flinger->mSecureFrameBuffer) 2213 return true; 2214 2215 result = flinger->captureScreenImplLocked(dpy, 2216 heap, w, h, f, sw, sh); 2217 2218 return true; 2219 } 2220 }; 2221 2222 sp<MessageBase> msg = new MessageCaptureScreen(this, 2223 dpy, heap, width, height, format, sw, sh); 2224 status_t res = postMessageSync(msg); 2225 if (res == NO_ERROR) { 2226 res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult(); 2227 } 2228 return res; 2229} 2230 2231// --------------------------------------------------------------------------- 2232 2233sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const 2234{ 2235 sp<Layer> result; 2236 Mutex::Autolock _l(mStateLock); 2237 result = mLayerMap.valueFor( sur->asBinder() ).promote(); 2238 return result; 2239} 2240 2241// --------------------------------------------------------------------------- 2242 2243Client::Client(const sp<SurfaceFlinger>& flinger) 2244 : mFlinger(flinger), mNameGenerator(1) 2245{ 2246} 2247 2248Client::~Client() 2249{ 2250 const size_t count = mLayers.size(); 2251 for (size_t i=0 ; i<count ; i++) { 2252 sp<LayerBaseClient> layer(mLayers.valueAt(i).promote()); 2253 if (layer != 0) { 2254 mFlinger->removeLayer(layer); 2255 } 2256 } 2257} 2258 2259status_t Client::initCheck() const { 2260 return NO_ERROR; 2261} 2262 2263ssize_t Client::attachLayer(const sp<LayerBaseClient>& layer) 2264{ 2265 int32_t name = android_atomic_inc(&mNameGenerator); 2266 mLayers.add(name, layer); 2267 return name; 2268} 2269 2270void Client::detachLayer(const LayerBaseClient* layer) 2271{ 2272 // we do a linear search here, because this doesn't happen often 2273 const size_t count = mLayers.size(); 2274 for (size_t i=0 ; i<count ; i++) { 2275 if (mLayers.valueAt(i) == layer) { 2276 mLayers.removeItemsAt(i, 1); 2277 break; 2278 } 2279 } 2280} 2281sp<LayerBaseClient> Client::getLayerUser(int32_t i) const { 2282 sp<LayerBaseClient> lbc; 2283 const wp<LayerBaseClient>& layer(mLayers.valueFor(i)); 2284 if (layer != 0) { 2285 lbc = layer.promote(); 2286 LOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i)); 2287 } 2288 return lbc; 2289} 2290 2291sp<IMemoryHeap> Client::getControlBlock() const { 2292 return 0; 2293} 2294ssize_t Client::getTokenForSurface(const sp<ISurface>& sur) const { 2295 return -1; 2296} 2297sp<ISurface> Client::createSurface( 2298 ISurfaceComposerClient::surface_data_t* params, int pid, 2299 const String8& name, 2300 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2301 uint32_t flags) 2302{ 2303 return mFlinger->createSurface(this, pid, name, params, 2304 display, w, h, format, flags); 2305} 2306status_t Client::destroySurface(SurfaceID sid) { 2307 return mFlinger->removeSurface(this, sid); 2308} 2309status_t Client::setState(int32_t count, const layer_state_t* states) { 2310 return mFlinger->setClientState(this, count, states); 2311} 2312 2313// --------------------------------------------------------------------------- 2314 2315UserClient::UserClient(const sp<SurfaceFlinger>& flinger) 2316 : ctrlblk(0), mBitmap(0), mFlinger(flinger) 2317{ 2318 const int pgsize = getpagesize(); 2319 const int cblksize = ((sizeof(SharedClient)+(pgsize-1))&~(pgsize-1)); 2320 2321 mCblkHeap = new MemoryHeapBase(cblksize, 0, 2322 "SurfaceFlinger Client control-block"); 2323 2324 ctrlblk = static_cast<SharedClient *>(mCblkHeap->getBase()); 2325 if (ctrlblk) { // construct the shared structure in-place. 2326 new(ctrlblk) SharedClient; 2327 } 2328} 2329 2330UserClient::~UserClient() 2331{ 2332 if (ctrlblk) { 2333 ctrlblk->~SharedClient(); // destroy our shared-structure. 2334 } 2335 2336 /* 2337 * When a UserClient dies, it's unclear what to do exactly. 2338 * We could go ahead and destroy all surfaces linked to that client 2339 * however, it wouldn't be fair to the main Client 2340 * (usually the the window-manager), which might want to re-target 2341 * the layer to another UserClient. 2342 * I think the best is to do nothing, or not much; in most cases the 2343 * WM itself will go ahead and clean things up when it detects a client of 2344 * his has died. 2345 * The remaining question is what to display? currently we keep 2346 * just keep the current buffer. 2347 */ 2348} 2349 2350status_t UserClient::initCheck() const { 2351 return ctrlblk == 0 ? NO_INIT : NO_ERROR; 2352} 2353 2354void UserClient::detachLayer(const Layer* layer) 2355{ 2356 int32_t name = layer->getToken(); 2357 if (name >= 0) { 2358 int32_t mask = 1LU<<name; 2359 if ((android_atomic_and(~mask, &mBitmap) & mask) == 0) { 2360 LOGW("token %d wasn't marked as used %08x", name, int(mBitmap)); 2361 } 2362 } 2363} 2364 2365sp<IMemoryHeap> UserClient::getControlBlock() const { 2366 return mCblkHeap; 2367} 2368 2369ssize_t UserClient::getTokenForSurface(const sp<ISurface>& sur) const 2370{ 2371 int32_t name = NAME_NOT_FOUND; 2372 sp<Layer> layer(mFlinger->getLayer(sur)); 2373 if (layer == 0) return name; 2374 2375 // if this layer already has a token, just return it 2376 name = layer->getToken(); 2377 if ((name >= 0) && (layer->getClient() == this)) 2378 return name; 2379 2380 name = 0; 2381 do { 2382 int32_t mask = 1LU<<name; 2383 if ((android_atomic_or(mask, &mBitmap) & mask) == 0) { 2384 // we found and locked that name 2385 status_t err = layer->setToken( 2386 const_cast<UserClient*>(this), ctrlblk, name); 2387 if (err != NO_ERROR) { 2388 // free the name 2389 android_atomic_and(~mask, &mBitmap); 2390 name = err; 2391 } 2392 break; 2393 } 2394 if (++name > 31) 2395 name = NO_MEMORY; 2396 } while(name >= 0); 2397 2398 //LOGD("getTokenForSurface(%p) => %d (client=%p, bitmap=%08lx)", 2399 // sur->asBinder().get(), name, this, mBitmap); 2400 return name; 2401} 2402 2403sp<ISurface> UserClient::createSurface( 2404 ISurfaceComposerClient::surface_data_t* params, int pid, 2405 const String8& name, 2406 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2407 uint32_t flags) { 2408 return 0; 2409} 2410status_t UserClient::destroySurface(SurfaceID sid) { 2411 return INVALID_OPERATION; 2412} 2413status_t UserClient::setState(int32_t count, const layer_state_t* states) { 2414 return INVALID_OPERATION; 2415} 2416 2417// --------------------------------------------------------------------------- 2418 2419GraphicPlane::GraphicPlane() 2420 : mHw(0) 2421{ 2422} 2423 2424GraphicPlane::~GraphicPlane() { 2425 delete mHw; 2426} 2427 2428bool GraphicPlane::initialized() const { 2429 return mHw ? true : false; 2430} 2431 2432int GraphicPlane::getWidth() const { 2433 return mWidth; 2434} 2435 2436int GraphicPlane::getHeight() const { 2437 return mHeight; 2438} 2439 2440void GraphicPlane::setDisplayHardware(DisplayHardware *hw) 2441{ 2442 mHw = hw; 2443 2444 // initialize the display orientation transform. 2445 // it's a constant that should come from the display driver. 2446 int displayOrientation = ISurfaceComposer::eOrientationDefault; 2447 char property[PROPERTY_VALUE_MAX]; 2448 if (property_get("ro.sf.hwrotation", property, NULL) > 0) { 2449 //displayOrientation 2450 switch (atoi(property)) { 2451 case 90: 2452 displayOrientation = ISurfaceComposer::eOrientation90; 2453 break; 2454 case 270: 2455 displayOrientation = ISurfaceComposer::eOrientation270; 2456 break; 2457 } 2458 } 2459 2460 const float w = hw->getWidth(); 2461 const float h = hw->getHeight(); 2462 GraphicPlane::orientationToTransfrom(displayOrientation, w, h, 2463 &mDisplayTransform); 2464 if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) { 2465 mDisplayWidth = h; 2466 mDisplayHeight = w; 2467 } else { 2468 mDisplayWidth = w; 2469 mDisplayHeight = h; 2470 } 2471 2472 setOrientation(ISurfaceComposer::eOrientationDefault); 2473} 2474 2475status_t GraphicPlane::orientationToTransfrom( 2476 int orientation, int w, int h, Transform* tr) 2477{ 2478 uint32_t flags = 0; 2479 switch (orientation) { 2480 case ISurfaceComposer::eOrientationDefault: 2481 flags = Transform::ROT_0; 2482 break; 2483 case ISurfaceComposer::eOrientation90: 2484 flags = Transform::ROT_90; 2485 break; 2486 case ISurfaceComposer::eOrientation180: 2487 flags = Transform::ROT_180; 2488 break; 2489 case ISurfaceComposer::eOrientation270: 2490 flags = Transform::ROT_270; 2491 break; 2492 default: 2493 return BAD_VALUE; 2494 } 2495 tr->set(flags, w, h); 2496 return NO_ERROR; 2497} 2498 2499status_t GraphicPlane::setOrientation(int orientation) 2500{ 2501 // If the rotation can be handled in hardware, this is where 2502 // the magic should happen. 2503 2504 const DisplayHardware& hw(displayHardware()); 2505 const float w = mDisplayWidth; 2506 const float h = mDisplayHeight; 2507 mWidth = int(w); 2508 mHeight = int(h); 2509 2510 Transform orientationTransform; 2511 GraphicPlane::orientationToTransfrom(orientation, w, h, 2512 &orientationTransform); 2513 if (orientation & ISurfaceComposer::eOrientationSwapMask) { 2514 mWidth = int(h); 2515 mHeight = int(w); 2516 } 2517 2518 mOrientation = orientation; 2519 mGlobalTransform = mDisplayTransform * orientationTransform; 2520 return NO_ERROR; 2521} 2522 2523const DisplayHardware& GraphicPlane::displayHardware() const { 2524 return *mHw; 2525} 2526 2527DisplayHardware& GraphicPlane::editDisplayHardware() { 2528 return *mHw; 2529} 2530 2531const Transform& GraphicPlane::transform() const { 2532 return mGlobalTransform; 2533} 2534 2535EGLDisplay GraphicPlane::getEGLDisplay() const { 2536 return mHw->getEGLDisplay(); 2537} 2538 2539// --------------------------------------------------------------------------- 2540 2541}; // namespace android 2542