SurfaceFlinger.cpp revision bce26daaaf4ea245ccb09d75a378d294e518d945
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include <stdlib.h> 18#include <stdio.h> 19#include <stdint.h> 20#include <unistd.h> 21#include <fcntl.h> 22#include <errno.h> 23#include <math.h> 24#include <limits.h> 25#include <sys/types.h> 26#include <sys/stat.h> 27#include <sys/ioctl.h> 28 29#include <cutils/log.h> 30#include <cutils/properties.h> 31 32#include <binder/IPCThreadState.h> 33#include <binder/IServiceManager.h> 34#include <binder/MemoryHeapBase.h> 35 36#include <utils/String8.h> 37#include <utils/String16.h> 38#include <utils/StopWatch.h> 39 40#include <ui/GraphicBufferAllocator.h> 41#include <ui/GraphicLog.h> 42#include <ui/PixelFormat.h> 43 44#include <pixelflinger/pixelflinger.h> 45#include <GLES/gl.h> 46 47#include "clz.h" 48#include "GLExtensions.h" 49#include "Layer.h" 50#include "LayerDim.h" 51#include "SurfaceFlinger.h" 52 53#include "DisplayHardware/DisplayHardware.h" 54#include "DisplayHardware/HWComposer.h" 55 56/* ideally AID_GRAPHICS would be in a semi-public header 57 * or there would be a way to map a user/group name to its id 58 */ 59#ifndef AID_GRAPHICS 60#define AID_GRAPHICS 1003 61#endif 62 63#define DISPLAY_COUNT 1 64 65namespace android { 66// --------------------------------------------------------------------------- 67 68SurfaceFlinger::SurfaceFlinger() 69 : BnSurfaceComposer(), Thread(false), 70 mTransactionFlags(0), 71 mTransactionCount(0), 72 mResizeTransationPending(false), 73 mLayersRemoved(false), 74 mBootTime(systemTime()), 75 mHardwareTest("android.permission.HARDWARE_TEST"), 76 mAccessSurfaceFlinger("android.permission.ACCESS_SURFACE_FLINGER"), 77 mReadFramebuffer("android.permission.READ_FRAME_BUFFER"), 78 mDump("android.permission.DUMP"), 79 mVisibleRegionsDirty(false), 80 mHwWorkListDirty(false), 81 mDeferReleaseConsole(false), 82 mFreezeDisplay(false), 83 mElectronBeamAnimationMode(0), 84 mFreezeCount(0), 85 mFreezeDisplayTime(0), 86 mDebugRegion(0), 87 mDebugBackground(0), 88 mDebugDisableHWC(0), 89 mDebugInSwapBuffers(0), 90 mLastSwapBufferTime(0), 91 mDebugInTransaction(0), 92 mLastTransactionTime(0), 93 mBootFinished(false), 94 mConsoleSignals(0), 95 mSecureFrameBuffer(0) 96{ 97 init(); 98} 99 100void SurfaceFlinger::init() 101{ 102 LOGI("SurfaceFlinger is starting"); 103 104 // debugging stuff... 105 char value[PROPERTY_VALUE_MAX]; 106 property_get("debug.sf.showupdates", value, "0"); 107 mDebugRegion = atoi(value); 108 property_get("debug.sf.showbackground", value, "0"); 109 mDebugBackground = atoi(value); 110 111 LOGI_IF(mDebugRegion, "showupdates enabled"); 112 LOGI_IF(mDebugBackground, "showbackground enabled"); 113} 114 115SurfaceFlinger::~SurfaceFlinger() 116{ 117 glDeleteTextures(1, &mWormholeTexName); 118} 119 120sp<IMemoryHeap> SurfaceFlinger::getCblk() const 121{ 122 return mServerHeap; 123} 124 125sp<ISurfaceComposerClient> SurfaceFlinger::createConnection() 126{ 127 sp<ISurfaceComposerClient> bclient; 128 sp<Client> client(new Client(this)); 129 status_t err = client->initCheck(); 130 if (err == NO_ERROR) { 131 bclient = client; 132 } 133 return bclient; 134} 135 136sp<ISurfaceComposerClient> SurfaceFlinger::createClientConnection() 137{ 138 sp<ISurfaceComposerClient> bclient; 139 sp<UserClient> client(new UserClient(this)); 140 status_t err = client->initCheck(); 141 if (err == NO_ERROR) { 142 bclient = client; 143 } 144 return bclient; 145} 146 147sp<IGraphicBufferAlloc> SurfaceFlinger::createGraphicBufferAlloc() 148{ 149 sp<GraphicBufferAlloc> gba(new GraphicBufferAlloc()); 150 return gba; 151} 152 153const GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) const 154{ 155 LOGE_IF(uint32_t(dpy) >= DISPLAY_COUNT, "Invalid DisplayID %d", dpy); 156 const GraphicPlane& plane(mGraphicPlanes[dpy]); 157 return plane; 158} 159 160GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) 161{ 162 return const_cast<GraphicPlane&>( 163 const_cast<SurfaceFlinger const *>(this)->graphicPlane(dpy)); 164} 165 166void SurfaceFlinger::bootFinished() 167{ 168 const nsecs_t now = systemTime(); 169 const nsecs_t duration = now - mBootTime; 170 LOGI("Boot is finished (%ld ms)", long(ns2ms(duration)) ); 171 mBootFinished = true; 172 property_set("ctl.stop", "bootanim"); 173} 174 175void SurfaceFlinger::onFirstRef() 176{ 177 run("SurfaceFlinger", PRIORITY_URGENT_DISPLAY); 178 179 // Wait for the main thread to be done with its initialization 180 mReadyToRunBarrier.wait(); 181} 182 183static inline uint16_t pack565(int r, int g, int b) { 184 return (r<<11)|(g<<5)|b; 185} 186 187status_t SurfaceFlinger::readyToRun() 188{ 189 LOGI( "SurfaceFlinger's main thread ready to run. " 190 "Initializing graphics H/W..."); 191 192 // we only support one display currently 193 int dpy = 0; 194 195 { 196 // initialize the main display 197 GraphicPlane& plane(graphicPlane(dpy)); 198 DisplayHardware* const hw = new DisplayHardware(this, dpy); 199 plane.setDisplayHardware(hw); 200 } 201 202 // create the shared control-block 203 mServerHeap = new MemoryHeapBase(4096, 204 MemoryHeapBase::READ_ONLY, "SurfaceFlinger read-only heap"); 205 LOGE_IF(mServerHeap==0, "can't create shared memory dealer"); 206 207 mServerCblk = static_cast<surface_flinger_cblk_t*>(mServerHeap->getBase()); 208 LOGE_IF(mServerCblk==0, "can't get to shared control block's address"); 209 210 new(mServerCblk) surface_flinger_cblk_t; 211 212 // initialize primary screen 213 // (other display should be initialized in the same manner, but 214 // asynchronously, as they could come and go. None of this is supported 215 // yet). 216 const GraphicPlane& plane(graphicPlane(dpy)); 217 const DisplayHardware& hw = plane.displayHardware(); 218 const uint32_t w = hw.getWidth(); 219 const uint32_t h = hw.getHeight(); 220 const uint32_t f = hw.getFormat(); 221 hw.makeCurrent(); 222 223 // initialize the shared control block 224 mServerCblk->connected |= 1<<dpy; 225 display_cblk_t* dcblk = mServerCblk->displays + dpy; 226 memset(dcblk, 0, sizeof(display_cblk_t)); 227 dcblk->w = plane.getWidth(); 228 dcblk->h = plane.getHeight(); 229 dcblk->format = f; 230 dcblk->orientation = ISurfaceComposer::eOrientationDefault; 231 dcblk->xdpi = hw.getDpiX(); 232 dcblk->ydpi = hw.getDpiY(); 233 dcblk->fps = hw.getRefreshRate(); 234 dcblk->density = hw.getDensity(); 235 236 // Initialize OpenGL|ES 237 glPixelStorei(GL_UNPACK_ALIGNMENT, 4); 238 glPixelStorei(GL_PACK_ALIGNMENT, 4); 239 glEnableClientState(GL_VERTEX_ARRAY); 240 glEnable(GL_SCISSOR_TEST); 241 glShadeModel(GL_FLAT); 242 glDisable(GL_DITHER); 243 glDisable(GL_CULL_FACE); 244 245 const uint16_t g0 = pack565(0x0F,0x1F,0x0F); 246 const uint16_t g1 = pack565(0x17,0x2f,0x17); 247 const uint16_t textureData[4] = { g0, g1, g1, g0 }; 248 glGenTextures(1, &mWormholeTexName); 249 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 250 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 251 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 252 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 253 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 254 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, 255 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, textureData); 256 257 glViewport(0, 0, w, h); 258 glMatrixMode(GL_PROJECTION); 259 glLoadIdentity(); 260 glOrthof(0, w, h, 0, 0, 1); 261 262 mReadyToRunBarrier.open(); 263 264 /* 265 * We're now ready to accept clients... 266 */ 267 268 // start boot animation 269 property_set("ctl.start", "bootanim"); 270 271 return NO_ERROR; 272} 273 274// ---------------------------------------------------------------------------- 275#if 0 276#pragma mark - 277#pragma mark Events Handler 278#endif 279 280void SurfaceFlinger::waitForEvent() 281{ 282 while (true) { 283 nsecs_t timeout = -1; 284 const nsecs_t freezeDisplayTimeout = ms2ns(5000); 285 if (UNLIKELY(isFrozen())) { 286 // wait 5 seconds 287 const nsecs_t now = systemTime(); 288 if (mFreezeDisplayTime == 0) { 289 mFreezeDisplayTime = now; 290 } 291 nsecs_t waitTime = freezeDisplayTimeout - (now - mFreezeDisplayTime); 292 timeout = waitTime>0 ? waitTime : 0; 293 } 294 295 sp<MessageBase> msg = mEventQueue.waitMessage(timeout); 296 297 // see if we timed out 298 if (isFrozen()) { 299 const nsecs_t now = systemTime(); 300 nsecs_t frozenTime = (now - mFreezeDisplayTime); 301 if (frozenTime >= freezeDisplayTimeout) { 302 // we timed out and are still frozen 303 LOGW("timeout expired mFreezeDisplay=%d, mFreezeCount=%d", 304 mFreezeDisplay, mFreezeCount); 305 mFreezeDisplayTime = 0; 306 mFreezeCount = 0; 307 mFreezeDisplay = false; 308 } 309 } 310 311 if (msg != 0) { 312 switch (msg->what) { 313 case MessageQueue::INVALIDATE: 314 // invalidate message, just return to the main loop 315 return; 316 } 317 } 318 } 319} 320 321void SurfaceFlinger::signalEvent() { 322 mEventQueue.invalidate(); 323} 324 325void SurfaceFlinger::signal() const { 326 // this is the IPC call 327 const_cast<SurfaceFlinger*>(this)->signalEvent(); 328} 329 330status_t SurfaceFlinger::postMessageAsync(const sp<MessageBase>& msg, 331 nsecs_t reltime, uint32_t flags) 332{ 333 return mEventQueue.postMessage(msg, reltime, flags); 334} 335 336status_t SurfaceFlinger::postMessageSync(const sp<MessageBase>& msg, 337 nsecs_t reltime, uint32_t flags) 338{ 339 status_t res = mEventQueue.postMessage(msg, reltime, flags); 340 if (res == NO_ERROR) { 341 msg->wait(); 342 } 343 return res; 344} 345 346// ---------------------------------------------------------------------------- 347#if 0 348#pragma mark - 349#pragma mark Main loop 350#endif 351 352bool SurfaceFlinger::threadLoop() 353{ 354 waitForEvent(); 355 356 // check for transactions 357 if (UNLIKELY(mConsoleSignals)) { 358 handleConsoleEvents(); 359 } 360 361 if (LIKELY(mTransactionCount == 0)) { 362 // if we're in a global transaction, don't do anything. 363 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 364 uint32_t transactionFlags = getTransactionFlags(mask); 365 if (LIKELY(transactionFlags)) { 366 handleTransaction(transactionFlags); 367 } 368 } 369 370 // post surfaces (if needed) 371 handlePageFlip(); 372 373 if (UNLIKELY(mHwWorkListDirty)) { 374 // build the h/w work list 375 handleWorkList(); 376 } 377 378 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 379 if (LIKELY(hw.canDraw() && !isFrozen())) { 380 // repaint the framebuffer (if needed) 381 382 const int index = hw.getCurrentBufferIndex(); 383 GraphicLog& logger(GraphicLog::getInstance()); 384 385 logger.log(GraphicLog::SF_REPAINT, index); 386 handleRepaint(); 387 388 // inform the h/w that we're done compositing 389 logger.log(GraphicLog::SF_COMPOSITION_COMPLETE, index); 390 hw.compositionComplete(); 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 hw.compositionComplete(); 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 SurfaceFlinger::turnElectronBeamOn(mElectronBeamAnimationMode); 428 } 429 430 if (mDeferReleaseConsole && hw.isScreenAcquired()) { 431 // We got the release signal before the acquire signal 432 mDeferReleaseConsole = false; 433 hw.releaseScreen(); 434 } 435 436 if (what & eConsoleReleased) { 437 if (hw.isScreenAcquired()) { 438 hw.releaseScreen(); 439 } else { 440 mDeferReleaseConsole = true; 441 } 442 } 443 444 mDirtyRegion.set(hw.bounds()); 445} 446 447void SurfaceFlinger::handleTransaction(uint32_t transactionFlags) 448{ 449 Vector< sp<LayerBase> > ditchedLayers; 450 451 /* 452 * Perform and commit the transaction 453 */ 454 455 { // scope for the lock 456 Mutex::Autolock _l(mStateLock); 457 const nsecs_t now = systemTime(); 458 mDebugInTransaction = now; 459 handleTransactionLocked(transactionFlags, ditchedLayers); 460 mLastTransactionTime = systemTime() - now; 461 mDebugInTransaction = 0; 462 invalidateHwcGeometry(); 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 */ 470 471 const size_t count = ditchedLayers.size(); 472 for (size_t i=0 ; i<count ; i++) { 473 if (ditchedLayers[i] != 0) { 474 //LOGD("ditching layer %p", ditchedLayers[i].get()); 475 ditchedLayers[i]->ditch(); 476 } 477 } 478} 479 480void SurfaceFlinger::handleTransactionLocked( 481 uint32_t transactionFlags, Vector< sp<LayerBase> >& ditchedLayers) 482{ 483 const LayerVector& currentLayers(mCurrentState.layersSortedByZ); 484 const size_t count = currentLayers.size(); 485 486 /* 487 * Traversal of the children 488 * (perform the transaction for each of them if needed) 489 */ 490 491 const bool layersNeedTransaction = transactionFlags & eTraversalNeeded; 492 if (layersNeedTransaction) { 493 for (size_t i=0 ; i<count ; i++) { 494 const sp<LayerBase>& layer = currentLayers[i]; 495 uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded); 496 if (!trFlags) continue; 497 498 const uint32_t flags = layer->doTransaction(0); 499 if (flags & Layer::eVisibleRegion) 500 mVisibleRegionsDirty = true; 501 } 502 } 503 504 /* 505 * Perform our own transaction if needed 506 */ 507 508 if (transactionFlags & eTransactionNeeded) { 509 if (mCurrentState.orientation != mDrawingState.orientation) { 510 // the orientation has changed, recompute all visible regions 511 // and invalidate everything. 512 513 const int dpy = 0; 514 const int orientation = mCurrentState.orientation; 515 const uint32_t type = mCurrentState.orientationType; 516 GraphicPlane& plane(graphicPlane(dpy)); 517 plane.setOrientation(orientation); 518 519 // update the shared control block 520 const DisplayHardware& hw(plane.displayHardware()); 521 volatile display_cblk_t* dcblk = mServerCblk->displays + dpy; 522 dcblk->orientation = orientation; 523 dcblk->w = plane.getWidth(); 524 dcblk->h = plane.getHeight(); 525 526 mVisibleRegionsDirty = true; 527 mDirtyRegion.set(hw.bounds()); 528 } 529 530 if (mCurrentState.freezeDisplay != mDrawingState.freezeDisplay) { 531 // freezing or unfreezing the display -> trigger animation if needed 532 mFreezeDisplay = mCurrentState.freezeDisplay; 533 if (mFreezeDisplay) 534 mFreezeDisplayTime = 0; 535 } 536 537 if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) { 538 // layers have been added 539 mVisibleRegionsDirty = true; 540 } 541 542 // some layers might have been removed, so 543 // we need to update the regions they're exposing. 544 if (mLayersRemoved) { 545 mLayersRemoved = false; 546 mVisibleRegionsDirty = true; 547 const LayerVector& previousLayers(mDrawingState.layersSortedByZ); 548 const size_t count = previousLayers.size(); 549 for (size_t i=0 ; i<count ; i++) { 550 const sp<LayerBase>& layer(previousLayers[i]); 551 if (currentLayers.indexOf( layer ) < 0) { 552 // this layer is not visible anymore 553 ditchedLayers.add(layer); 554 mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen); 555 } 556 } 557 } 558 } 559 560 commitTransaction(); 561} 562 563sp<FreezeLock> SurfaceFlinger::getFreezeLock() const 564{ 565 return new FreezeLock(const_cast<SurfaceFlinger *>(this)); 566} 567 568void SurfaceFlinger::computeVisibleRegions( 569 LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion) 570{ 571 const GraphicPlane& plane(graphicPlane(0)); 572 const Transform& planeTransform(plane.transform()); 573 const DisplayHardware& hw(plane.displayHardware()); 574 const Region screenRegion(hw.bounds()); 575 576 Region aboveOpaqueLayers; 577 Region aboveCoveredLayers; 578 Region dirty; 579 580 bool secureFrameBuffer = false; 581 582 size_t i = currentLayers.size(); 583 while (i--) { 584 const sp<LayerBase>& layer = currentLayers[i]; 585 layer->validateVisibility(planeTransform); 586 587 // start with the whole surface at its current location 588 const Layer::State& s(layer->drawingState()); 589 590 /* 591 * opaqueRegion: area of a surface that is fully opaque. 592 */ 593 Region opaqueRegion; 594 595 /* 596 * visibleRegion: area of a surface that is visible on screen 597 * and not fully transparent. This is essentially the layer's 598 * footprint minus the opaque regions above it. 599 * Areas covered by a translucent surface are considered visible. 600 */ 601 Region visibleRegion; 602 603 /* 604 * coveredRegion: area of a surface that is covered by all 605 * visible regions above it (which includes the translucent areas). 606 */ 607 Region coveredRegion; 608 609 610 // handle hidden surfaces by setting the visible region to empty 611 if (LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) { 612 const bool translucent = layer->needsBlending(); 613 const Rect bounds(layer->visibleBounds()); 614 visibleRegion.set(bounds); 615 visibleRegion.andSelf(screenRegion); 616 if (!visibleRegion.isEmpty()) { 617 // Remove the transparent area from the visible region 618 if (translucent) { 619 visibleRegion.subtractSelf(layer->transparentRegionScreen); 620 } 621 622 // compute the opaque region 623 const int32_t layerOrientation = layer->getOrientation(); 624 if (s.alpha==255 && !translucent && 625 ((layerOrientation & Transform::ROT_INVALID) == false)) { 626 // the opaque region is the layer's footprint 627 opaqueRegion = visibleRegion; 628 } 629 } 630 } 631 632 // Clip the covered region to the visible region 633 coveredRegion = aboveCoveredLayers.intersect(visibleRegion); 634 635 // Update aboveCoveredLayers for next (lower) layer 636 aboveCoveredLayers.orSelf(visibleRegion); 637 638 // subtract the opaque region covered by the layers above us 639 visibleRegion.subtractSelf(aboveOpaqueLayers); 640 641 // compute this layer's dirty region 642 if (layer->contentDirty) { 643 // we need to invalidate the whole region 644 dirty = visibleRegion; 645 // as well, as the old visible region 646 dirty.orSelf(layer->visibleRegionScreen); 647 layer->contentDirty = false; 648 } else { 649 /* compute the exposed region: 650 * the exposed region consists of two components: 651 * 1) what's VISIBLE now and was COVERED before 652 * 2) what's EXPOSED now less what was EXPOSED before 653 * 654 * note that (1) is conservative, we start with the whole 655 * visible region but only keep what used to be covered by 656 * something -- which mean it may have been exposed. 657 * 658 * (2) handles areas that were not covered by anything but got 659 * exposed because of a resize. 660 */ 661 const Region newExposed = visibleRegion - coveredRegion; 662 const Region oldVisibleRegion = layer->visibleRegionScreen; 663 const Region oldCoveredRegion = layer->coveredRegionScreen; 664 const Region oldExposed = oldVisibleRegion - oldCoveredRegion; 665 dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed); 666 } 667 dirty.subtractSelf(aboveOpaqueLayers); 668 669 // accumulate to the screen dirty region 670 dirtyRegion.orSelf(dirty); 671 672 // Update aboveOpaqueLayers for next (lower) layer 673 aboveOpaqueLayers.orSelf(opaqueRegion); 674 675 // Store the visible region is screen space 676 layer->setVisibleRegion(visibleRegion); 677 layer->setCoveredRegion(coveredRegion); 678 679 // If a secure layer is partially visible, lock-down the screen! 680 if (layer->isSecure() && !visibleRegion.isEmpty()) { 681 secureFrameBuffer = true; 682 } 683 } 684 685 // invalidate the areas where a layer was removed 686 dirtyRegion.orSelf(mDirtyRegionRemovedLayer); 687 mDirtyRegionRemovedLayer.clear(); 688 689 mSecureFrameBuffer = secureFrameBuffer; 690 opaqueRegion = aboveOpaqueLayers; 691} 692 693 694void SurfaceFlinger::commitTransaction() 695{ 696 mDrawingState = mCurrentState; 697 mResizeTransationPending = false; 698 mTransactionCV.broadcast(); 699} 700 701void SurfaceFlinger::handlePageFlip() 702{ 703 bool visibleRegions = mVisibleRegionsDirty; 704 LayerVector& currentLayers( 705 const_cast<LayerVector&>(mDrawingState.layersSortedByZ)); 706 visibleRegions |= lockPageFlip(currentLayers); 707 708 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 709 const Region screenRegion(hw.bounds()); 710 if (visibleRegions) { 711 Region opaqueRegion; 712 computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion); 713 714 /* 715 * rebuild the visible layer list 716 */ 717 mVisibleLayersSortedByZ.clear(); 718 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 719 size_t count = currentLayers.size(); 720 mVisibleLayersSortedByZ.setCapacity(count); 721 for (size_t i=0 ; i<count ; i++) { 722 if (!currentLayers[i]->visibleRegionScreen.isEmpty()) 723 mVisibleLayersSortedByZ.add(currentLayers[i]); 724 } 725 726 mWormholeRegion = screenRegion.subtract(opaqueRegion); 727 mVisibleRegionsDirty = false; 728 invalidateHwcGeometry(); 729 } 730 731 unlockPageFlip(currentLayers); 732 mDirtyRegion.andSelf(screenRegion); 733} 734 735void SurfaceFlinger::invalidateHwcGeometry() 736{ 737 mHwWorkListDirty = true; 738} 739 740bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers) 741{ 742 bool recomputeVisibleRegions = false; 743 size_t count = currentLayers.size(); 744 sp<LayerBase> const* layers = currentLayers.array(); 745 for (size_t i=0 ; i<count ; i++) { 746 const sp<LayerBase>& layer(layers[i]); 747 layer->lockPageFlip(recomputeVisibleRegions); 748 } 749 return recomputeVisibleRegions; 750} 751 752void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers) 753{ 754 const GraphicPlane& plane(graphicPlane(0)); 755 const Transform& planeTransform(plane.transform()); 756 size_t count = currentLayers.size(); 757 sp<LayerBase> const* layers = currentLayers.array(); 758 for (size_t i=0 ; i<count ; i++) { 759 const sp<LayerBase>& layer(layers[i]); 760 layer->unlockPageFlip(planeTransform, mDirtyRegion); 761 } 762} 763 764void SurfaceFlinger::handleWorkList() 765{ 766 mHwWorkListDirty = false; 767 HWComposer& hwc(graphicPlane(0).displayHardware().getHwComposer()); 768 if (hwc.initCheck() == NO_ERROR) { 769 const Vector< sp<LayerBase> >& currentLayers(mVisibleLayersSortedByZ); 770 const size_t count = currentLayers.size(); 771 hwc.createWorkList(count); 772 hwc_layer_t* const cur(hwc.getLayers()); 773 for (size_t i=0 ; cur && i<count ; i++) { 774 currentLayers[i]->setGeometry(&cur[i]); 775 if (mDebugDisableHWC) { 776 cur[i].compositionType = HWC_FRAMEBUFFER; 777 cur[i].flags |= HWC_SKIP_LAYER; 778 } 779 } 780 } 781} 782 783void SurfaceFlinger::handleRepaint() 784{ 785 // compute the invalid region 786 mInvalidRegion.orSelf(mDirtyRegion); 787 788 if (UNLIKELY(mDebugRegion)) { 789 debugFlashRegions(); 790 } 791 792 // set the frame buffer 793 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 794 glMatrixMode(GL_MODELVIEW); 795 glLoadIdentity(); 796 797 uint32_t flags = hw.getFlags(); 798 if ((flags & DisplayHardware::SWAP_RECTANGLE) || 799 (flags & DisplayHardware::BUFFER_PRESERVED)) 800 { 801 // we can redraw only what's dirty, but since SWAP_RECTANGLE only 802 // takes a rectangle, we must make sure to update that whole 803 // rectangle in that case 804 if (flags & DisplayHardware::SWAP_RECTANGLE) { 805 // TODO: we really should be able to pass a region to 806 // SWAP_RECTANGLE so that we don't have to redraw all this. 807 mDirtyRegion.set(mInvalidRegion.bounds()); 808 } else { 809 // in the BUFFER_PRESERVED case, obviously, we can update only 810 // what's needed and nothing more. 811 // NOTE: this is NOT a common case, as preserving the backbuffer 812 // is costly and usually involves copying the whole update back. 813 } 814 } else { 815 if (flags & DisplayHardware::PARTIAL_UPDATES) { 816 // We need to redraw the rectangle that will be updated 817 // (pushed to the framebuffer). 818 // This is needed because PARTIAL_UPDATES only takes one 819 // rectangle instead of a region (see DisplayHardware::flip()) 820 mDirtyRegion.set(mInvalidRegion.bounds()); 821 } else { 822 // we need to redraw everything (the whole screen) 823 mDirtyRegion.set(hw.bounds()); 824 mInvalidRegion = mDirtyRegion; 825 } 826 } 827 828 // compose all surfaces 829 composeSurfaces(mDirtyRegion); 830 831 // clear the dirty regions 832 mDirtyRegion.clear(); 833} 834 835void SurfaceFlinger::composeSurfaces(const Region& dirty) 836{ 837 if (UNLIKELY(!mWormholeRegion.isEmpty())) { 838 // should never happen unless the window manager has a bug 839 // draw something... 840 drawWormhole(); 841 } 842 843 status_t err = NO_ERROR; 844 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 845 size_t count = layers.size(); 846 847 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 848 HWComposer& hwc(hw.getHwComposer()); 849 hwc_layer_t* const cur(hwc.getLayers()); 850 851 LOGE_IF(cur && hwc.getNumLayers() != count, 852 "HAL number of layers (%d) doesn't match surfaceflinger (%d)", 853 hwc.getNumLayers(), count); 854 855 // just to be extra-safe, use the smallest count 856 if (hwc.initCheck() == NO_ERROR) { 857 count = count < hwc.getNumLayers() ? count : hwc.getNumLayers(); 858 } 859 860 /* 861 * update the per-frame h/w composer data for each layer 862 * and build the transparent region of the FB 863 */ 864 Region transparent; 865 if (cur) { 866 for (size_t i=0 ; i<count ; i++) { 867 const sp<LayerBase>& layer(layers[i]); 868 layer->setPerFrameData(&cur[i]); 869 } 870 err = hwc.prepare(); 871 LOGE_IF(err, "HWComposer::prepare failed (%s)", strerror(-err)); 872 873 if (err == NO_ERROR) { 874 for (size_t i=0 ; i<count ; i++) { 875 if (cur[i].hints & HWC_HINT_CLEAR_FB) { 876 const sp<LayerBase>& layer(layers[i]); 877 if (!(layer->needsBlending())) { 878 transparent.orSelf(layer->visibleRegionScreen); 879 } 880 } 881 } 882 883 /* 884 * clear the area of the FB that need to be transparent 885 */ 886 transparent.andSelf(dirty); 887 if (!transparent.isEmpty()) { 888 glClearColor(0,0,0,0); 889 Region::const_iterator it = transparent.begin(); 890 Region::const_iterator const end = transparent.end(); 891 const int32_t height = hw.getHeight(); 892 while (it != end) { 893 const Rect& r(*it++); 894 const GLint sy = height - (r.top + r.height()); 895 glScissor(r.left, sy, r.width(), r.height()); 896 glClear(GL_COLOR_BUFFER_BIT); 897 } 898 } 899 } 900 } 901 902 903 /* 904 * and then, render the layers targeted at the framebuffer 905 */ 906 for (size_t i=0 ; i<count ; i++) { 907 if (cur) { 908 if ((cur[i].compositionType != HWC_FRAMEBUFFER) && 909 !(cur[i].flags & HWC_SKIP_LAYER)) { 910 // skip layers handled by the HAL 911 continue; 912 } 913 } 914 915 const sp<LayerBase>& layer(layers[i]); 916 const Region clip(dirty.intersect(layer->visibleRegionScreen)); 917 if (!clip.isEmpty()) { 918 layer->draw(clip); 919 } 920 } 921} 922 923void SurfaceFlinger::debugFlashRegions() 924{ 925 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 926 const uint32_t flags = hw.getFlags(); 927 928 if (!((flags & DisplayHardware::SWAP_RECTANGLE) || 929 (flags & DisplayHardware::BUFFER_PRESERVED))) { 930 const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ? 931 mDirtyRegion.bounds() : hw.bounds()); 932 composeSurfaces(repaint); 933 } 934 935 TextureManager::deactivateTextures(); 936 937 glDisable(GL_BLEND); 938 glDisable(GL_DITHER); 939 glDisable(GL_SCISSOR_TEST); 940 941 static int toggle = 0; 942 toggle = 1 - toggle; 943 if (toggle) { 944 glColor4f(1, 0, 1, 1); 945 } else { 946 glColor4f(1, 1, 0, 1); 947 } 948 949 Region::const_iterator it = mDirtyRegion.begin(); 950 Region::const_iterator const end = mDirtyRegion.end(); 951 while (it != end) { 952 const Rect& r = *it++; 953 GLfloat vertices[][2] = { 954 { r.left, r.top }, 955 { r.left, r.bottom }, 956 { r.right, r.bottom }, 957 { r.right, r.top } 958 }; 959 glVertexPointer(2, GL_FLOAT, 0, vertices); 960 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 961 } 962 963 if (mInvalidRegion.isEmpty()) { 964 mDirtyRegion.dump("mDirtyRegion"); 965 mInvalidRegion.dump("mInvalidRegion"); 966 } 967 hw.flip(mInvalidRegion); 968 969 if (mDebugRegion > 1) 970 usleep(mDebugRegion * 1000); 971 972 glEnable(GL_SCISSOR_TEST); 973 //mDirtyRegion.dump("mDirtyRegion"); 974} 975 976void SurfaceFlinger::drawWormhole() const 977{ 978 const Region region(mWormholeRegion.intersect(mDirtyRegion)); 979 if (region.isEmpty()) 980 return; 981 982 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 983 const int32_t width = hw.getWidth(); 984 const int32_t height = hw.getHeight(); 985 986 glDisable(GL_BLEND); 987 glDisable(GL_DITHER); 988 989 if (LIKELY(!mDebugBackground)) { 990 glClearColor(0,0,0,0); 991 Region::const_iterator it = region.begin(); 992 Region::const_iterator const end = region.end(); 993 while (it != end) { 994 const Rect& r = *it++; 995 const GLint sy = height - (r.top + r.height()); 996 glScissor(r.left, sy, r.width(), r.height()); 997 glClear(GL_COLOR_BUFFER_BIT); 998 } 999 } else { 1000 const GLshort vertices[][2] = { { 0, 0 }, { width, 0 }, 1001 { width, height }, { 0, height } }; 1002 const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } }; 1003 glVertexPointer(2, GL_SHORT, 0, vertices); 1004 glTexCoordPointer(2, GL_SHORT, 0, tcoords); 1005 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1006#if defined(GL_OES_EGL_image_external) 1007 if (GLExtensions::getInstance().haveTextureExternal()) { 1008 glDisable(GL_TEXTURE_EXTERNAL_OES); 1009 } 1010#endif 1011 glEnable(GL_TEXTURE_2D); 1012 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 1013 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1014 glMatrixMode(GL_TEXTURE); 1015 glLoadIdentity(); 1016 glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1); 1017 Region::const_iterator it = region.begin(); 1018 Region::const_iterator const end = region.end(); 1019 while (it != end) { 1020 const Rect& r = *it++; 1021 const GLint sy = height - (r.top + r.height()); 1022 glScissor(r.left, sy, r.width(), r.height()); 1023 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1024 } 1025 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1026 glLoadIdentity(); 1027 glMatrixMode(GL_MODELVIEW); 1028 } 1029} 1030 1031void SurfaceFlinger::debugShowFPS() const 1032{ 1033 static int mFrameCount; 1034 static int mLastFrameCount = 0; 1035 static nsecs_t mLastFpsTime = 0; 1036 static float mFps = 0; 1037 mFrameCount++; 1038 nsecs_t now = systemTime(); 1039 nsecs_t diff = now - mLastFpsTime; 1040 if (diff > ms2ns(250)) { 1041 mFps = ((mFrameCount - mLastFrameCount) * float(s2ns(1))) / diff; 1042 mLastFpsTime = now; 1043 mLastFrameCount = mFrameCount; 1044 } 1045 // XXX: mFPS has the value we want 1046 } 1047 1048status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer) 1049{ 1050 Mutex::Autolock _l(mStateLock); 1051 addLayer_l(layer); 1052 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1053 return NO_ERROR; 1054} 1055 1056status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer) 1057{ 1058 ssize_t i = mCurrentState.layersSortedByZ.add(layer); 1059 return (i < 0) ? status_t(i) : status_t(NO_ERROR); 1060} 1061 1062ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client, 1063 const sp<LayerBaseClient>& lbc) 1064{ 1065 Mutex::Autolock _l(mStateLock); 1066 1067 // attach this layer to the client 1068 ssize_t name = client->attachLayer(lbc); 1069 1070 // add this layer to the current state list 1071 addLayer_l(lbc); 1072 1073 return name; 1074} 1075 1076status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer) 1077{ 1078 Mutex::Autolock _l(mStateLock); 1079 status_t err = purgatorizeLayer_l(layer); 1080 if (err == NO_ERROR) 1081 setTransactionFlags(eTransactionNeeded); 1082 return err; 1083} 1084 1085status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase) 1086{ 1087 sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient()); 1088 if (lbc != 0) { 1089 mLayerMap.removeItem( lbc->getSurfaceBinder() ); 1090 } 1091 ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase); 1092 if (index >= 0) { 1093 mLayersRemoved = true; 1094 return NO_ERROR; 1095 } 1096 return status_t(index); 1097} 1098 1099status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase) 1100{ 1101 // First add the layer to the purgatory list, which makes sure it won't 1102 // go away, then remove it from the main list (through a transaction). 1103 ssize_t err = removeLayer_l(layerBase); 1104 if (err >= 0) { 1105 mLayerPurgatory.add(layerBase); 1106 } 1107 1108 layerBase->onRemoved(); 1109 1110 // it's possible that we don't find a layer, because it might 1111 // have been destroyed already -- this is not technically an error 1112 // from the user because there is a race between Client::destroySurface(), 1113 // ~Client() and ~ISurface(). 1114 return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err; 1115} 1116 1117status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer) 1118{ 1119 layer->forceVisibilityTransaction(); 1120 setTransactionFlags(eTraversalNeeded); 1121 return NO_ERROR; 1122} 1123 1124uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags) 1125{ 1126 return android_atomic_and(~flags, &mTransactionFlags) & flags; 1127} 1128 1129uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags) 1130{ 1131 uint32_t old = android_atomic_or(flags, &mTransactionFlags); 1132 if ((old & flags)==0) { // wake the server up 1133 signalEvent(); 1134 } 1135 return old; 1136} 1137 1138void SurfaceFlinger::openGlobalTransaction() 1139{ 1140 android_atomic_inc(&mTransactionCount); 1141} 1142 1143void SurfaceFlinger::closeGlobalTransaction() 1144{ 1145 if (android_atomic_dec(&mTransactionCount) == 1) { 1146 signalEvent(); 1147 1148 // if there is a transaction with a resize, wait for it to 1149 // take effect before returning. 1150 Mutex::Autolock _l(mStateLock); 1151 while (mResizeTransationPending) { 1152 status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5)); 1153 if (CC_UNLIKELY(err != NO_ERROR)) { 1154 // just in case something goes wrong in SF, return to the 1155 // called after a few seconds. 1156 LOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!"); 1157 mResizeTransationPending = false; 1158 break; 1159 } 1160 } 1161 } 1162} 1163 1164status_t SurfaceFlinger::freezeDisplay(DisplayID dpy, uint32_t flags) 1165{ 1166 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1167 return BAD_VALUE; 1168 1169 Mutex::Autolock _l(mStateLock); 1170 mCurrentState.freezeDisplay = 1; 1171 setTransactionFlags(eTransactionNeeded); 1172 1173 // flags is intended to communicate some sort of animation behavior 1174 // (for instance fading) 1175 return NO_ERROR; 1176} 1177 1178status_t SurfaceFlinger::unfreezeDisplay(DisplayID dpy, uint32_t flags) 1179{ 1180 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1181 return BAD_VALUE; 1182 1183 Mutex::Autolock _l(mStateLock); 1184 mCurrentState.freezeDisplay = 0; 1185 setTransactionFlags(eTransactionNeeded); 1186 1187 // flags is intended to communicate some sort of animation behavior 1188 // (for instance fading) 1189 return NO_ERROR; 1190} 1191 1192int SurfaceFlinger::setOrientation(DisplayID dpy, 1193 int orientation, uint32_t flags) 1194{ 1195 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1196 return BAD_VALUE; 1197 1198 Mutex::Autolock _l(mStateLock); 1199 if (mCurrentState.orientation != orientation) { 1200 if (uint32_t(orientation)<=eOrientation270 || orientation==42) { 1201 mCurrentState.orientationType = flags; 1202 mCurrentState.orientation = orientation; 1203 setTransactionFlags(eTransactionNeeded); 1204 mTransactionCV.wait(mStateLock); 1205 } else { 1206 orientation = BAD_VALUE; 1207 } 1208 } 1209 return orientation; 1210} 1211 1212sp<ISurface> SurfaceFlinger::createSurface(const sp<Client>& client, int pid, 1213 const String8& name, ISurfaceComposerClient::surface_data_t* params, 1214 DisplayID d, uint32_t w, uint32_t h, PixelFormat format, 1215 uint32_t flags) 1216{ 1217 sp<LayerBaseClient> layer; 1218 sp<LayerBaseClient::Surface> surfaceHandle; 1219 1220 if (int32_t(w|h) < 0) { 1221 LOGE("createSurface() failed, w or h is negative (w=%d, h=%d)", 1222 int(w), int(h)); 1223 return surfaceHandle; 1224 } 1225 1226 //LOGD("createSurface for pid %d (%d x %d)", pid, w, h); 1227 sp<Layer> normalLayer; 1228 switch (flags & eFXSurfaceMask) { 1229 case eFXSurfaceNormal: 1230 normalLayer = createNormalSurface(client, d, w, h, flags, format); 1231 layer = normalLayer; 1232 break; 1233 case eFXSurfaceBlur: 1234 // for now we treat Blur as Dim, until we can implement it 1235 // efficiently. 1236 case eFXSurfaceDim: 1237 layer = createDimSurface(client, d, w, h, flags); 1238 break; 1239 } 1240 1241 if (layer != 0) { 1242 layer->initStates(w, h, flags); 1243 layer->setName(name); 1244 ssize_t token = addClientLayer(client, layer); 1245 1246 surfaceHandle = layer->getSurface(); 1247 if (surfaceHandle != 0) { 1248 params->token = token; 1249 params->identity = surfaceHandle->getIdentity(); 1250 params->width = w; 1251 params->height = h; 1252 params->format = format; 1253 if (normalLayer != 0) { 1254 Mutex::Autolock _l(mStateLock); 1255 mLayerMap.add(surfaceHandle->asBinder(), normalLayer); 1256 } 1257 } 1258 1259 setTransactionFlags(eTransactionNeeded); 1260 } 1261 1262 return surfaceHandle; 1263} 1264 1265sp<Layer> SurfaceFlinger::createNormalSurface( 1266 const sp<Client>& client, DisplayID display, 1267 uint32_t w, uint32_t h, uint32_t flags, 1268 PixelFormat& format) 1269{ 1270 // initialize the surfaces 1271 switch (format) { // TODO: take h/w into account 1272 case PIXEL_FORMAT_TRANSPARENT: 1273 case PIXEL_FORMAT_TRANSLUCENT: 1274 format = PIXEL_FORMAT_RGBA_8888; 1275 break; 1276 case PIXEL_FORMAT_OPAQUE: 1277#ifdef NO_RGBX_8888 1278 format = PIXEL_FORMAT_RGB_565; 1279#else 1280 format = PIXEL_FORMAT_RGBX_8888; 1281#endif 1282 break; 1283 } 1284 1285#ifdef NO_RGBX_8888 1286 if (format == PIXEL_FORMAT_RGBX_8888) 1287 format = PIXEL_FORMAT_RGBA_8888; 1288#endif 1289 1290 sp<Layer> layer = new Layer(this, display, client); 1291 status_t err = layer->setBuffers(w, h, format, flags); 1292 if (LIKELY(err != NO_ERROR)) { 1293 LOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err)); 1294 layer.clear(); 1295 } 1296 return layer; 1297} 1298 1299sp<LayerDim> SurfaceFlinger::createDimSurface( 1300 const sp<Client>& client, DisplayID display, 1301 uint32_t w, uint32_t h, uint32_t flags) 1302{ 1303 sp<LayerDim> layer = new LayerDim(this, display, client); 1304 layer->initStates(w, h, flags); 1305 return layer; 1306} 1307 1308status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid) 1309{ 1310 /* 1311 * called by the window manager, when a surface should be marked for 1312 * destruction. 1313 * 1314 * The surface is removed from the current and drawing lists, but placed 1315 * in the purgatory queue, so it's not destroyed right-away (we need 1316 * to wait for all client's references to go away first). 1317 */ 1318 1319 status_t err = NAME_NOT_FOUND; 1320 Mutex::Autolock _l(mStateLock); 1321 sp<LayerBaseClient> layer = client->getLayerUser(sid); 1322 if (layer != 0) { 1323 err = purgatorizeLayer_l(layer); 1324 if (err == NO_ERROR) { 1325 setTransactionFlags(eTransactionNeeded); 1326 } 1327 } 1328 return err; 1329} 1330 1331status_t SurfaceFlinger::destroySurface(const sp<LayerBaseClient>& layer) 1332{ 1333 // called by ~ISurface() when all references are gone 1334 1335 class MessageDestroySurface : public MessageBase { 1336 SurfaceFlinger* flinger; 1337 sp<LayerBaseClient> layer; 1338 public: 1339 MessageDestroySurface( 1340 SurfaceFlinger* flinger, const sp<LayerBaseClient>& layer) 1341 : flinger(flinger), layer(layer) { } 1342 virtual bool handler() { 1343 sp<LayerBaseClient> l(layer); 1344 layer.clear(); // clear it outside of the lock; 1345 Mutex::Autolock _l(flinger->mStateLock); 1346 /* 1347 * remove the layer from the current list -- chances are that it's 1348 * not in the list anyway, because it should have been removed 1349 * already upon request of the client (eg: window manager). 1350 * However, a buggy client could have not done that. 1351 * Since we know we don't have any more clients, we don't need 1352 * to use the purgatory. 1353 */ 1354 status_t err = flinger->removeLayer_l(l); 1355 if (err == NAME_NOT_FOUND) { 1356 // The surface wasn't in the current list, which means it was 1357 // removed already, which means it is in the purgatory, 1358 // and need to be removed from there. 1359 // This needs to happen from the main thread since its dtor 1360 // must run from there (b/c of OpenGL ES). Additionally, we 1361 // can't really acquire our internal lock from 1362 // destroySurface() -- see postMessage() below. 1363 ssize_t idx = flinger->mLayerPurgatory.remove(l); 1364 LOGE_IF(idx < 0, 1365 "layer=%p is not in the purgatory list", l.get()); 1366 } 1367 1368 LOGE_IF(err<0 && err != NAME_NOT_FOUND, 1369 "error removing layer=%p (%s)", l.get(), strerror(-err)); 1370 return true; 1371 } 1372 }; 1373 1374 postMessageAsync( new MessageDestroySurface(this, layer) ); 1375 return NO_ERROR; 1376} 1377 1378status_t SurfaceFlinger::setClientState( 1379 const sp<Client>& client, 1380 int32_t count, 1381 const layer_state_t* states) 1382{ 1383 Mutex::Autolock _l(mStateLock); 1384 uint32_t flags = 0; 1385 for (int i=0 ; i<count ; i++) { 1386 const layer_state_t& s(states[i]); 1387 sp<LayerBaseClient> layer(client->getLayerUser(s.surface)); 1388 if (layer != 0) { 1389 const uint32_t what = s.what; 1390 if (what & ePositionChanged) { 1391 if (layer->setPosition(s.x, s.y)) 1392 flags |= eTraversalNeeded; 1393 } 1394 if (what & eLayerChanged) { 1395 ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer); 1396 if (layer->setLayer(s.z)) { 1397 mCurrentState.layersSortedByZ.removeAt(idx); 1398 mCurrentState.layersSortedByZ.add(layer); 1399 // we need traversal (state changed) 1400 // AND transaction (list changed) 1401 flags |= eTransactionNeeded|eTraversalNeeded; 1402 } 1403 } 1404 if (what & eSizeChanged) { 1405 if (layer->setSize(s.w, s.h)) { 1406 flags |= eTraversalNeeded; 1407 mResizeTransationPending = true; 1408 } 1409 } 1410 if (what & eAlphaChanged) { 1411 if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f))) 1412 flags |= eTraversalNeeded; 1413 } 1414 if (what & eMatrixChanged) { 1415 if (layer->setMatrix(s.matrix)) 1416 flags |= eTraversalNeeded; 1417 } 1418 if (what & eTransparentRegionChanged) { 1419 if (layer->setTransparentRegionHint(s.transparentRegion)) 1420 flags |= eTraversalNeeded; 1421 } 1422 if (what & eVisibilityChanged) { 1423 if (layer->setFlags(s.flags, s.mask)) 1424 flags |= eTraversalNeeded; 1425 } 1426 } 1427 } 1428 if (flags) { 1429 setTransactionFlags(flags); 1430 } 1431 return NO_ERROR; 1432} 1433 1434void SurfaceFlinger::screenReleased(int dpy) 1435{ 1436 // this may be called by a signal handler, we can't do too much in here 1437 android_atomic_or(eConsoleReleased, &mConsoleSignals); 1438 signalEvent(); 1439} 1440 1441void SurfaceFlinger::screenAcquired(int dpy) 1442{ 1443 // this may be called by a signal handler, we can't do too much in here 1444 android_atomic_or(eConsoleAcquired, &mConsoleSignals); 1445 signalEvent(); 1446} 1447 1448status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args) 1449{ 1450 const size_t SIZE = 4096; 1451 char buffer[SIZE]; 1452 String8 result; 1453 if (!mDump.checkCalling()) { 1454 snprintf(buffer, SIZE, "Permission Denial: " 1455 "can't dump SurfaceFlinger from pid=%d, uid=%d\n", 1456 IPCThreadState::self()->getCallingPid(), 1457 IPCThreadState::self()->getCallingUid()); 1458 result.append(buffer); 1459 } else { 1460 1461 // figure out if we're stuck somewhere 1462 const nsecs_t now = systemTime(); 1463 const nsecs_t inSwapBuffers(mDebugInSwapBuffers); 1464 const nsecs_t inTransaction(mDebugInTransaction); 1465 nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0; 1466 nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0; 1467 1468 // Try to get the main lock, but don't insist if we can't 1469 // (this would indicate SF is stuck, but we want to be able to 1470 // print something in dumpsys). 1471 int retry = 3; 1472 while (mStateLock.tryLock()<0 && --retry>=0) { 1473 usleep(1000000); 1474 } 1475 const bool locked(retry >= 0); 1476 if (!locked) { 1477 snprintf(buffer, SIZE, 1478 "SurfaceFlinger appears to be unresponsive, " 1479 "dumping anyways (no locks held)\n"); 1480 result.append(buffer); 1481 } 1482 1483 /* 1484 * Dump the visible layer list 1485 */ 1486 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1487 const size_t count = currentLayers.size(); 1488 snprintf(buffer, SIZE, "Visible layers (count = %d)\n", count); 1489 result.append(buffer); 1490 for (size_t i=0 ; i<count ; i++) { 1491 const sp<LayerBase>& layer(currentLayers[i]); 1492 layer->dump(result, buffer, SIZE); 1493 const Layer::State& s(layer->drawingState()); 1494 s.transparentRegion.dump(result, "transparentRegion"); 1495 layer->transparentRegionScreen.dump(result, "transparentRegionScreen"); 1496 layer->visibleRegionScreen.dump(result, "visibleRegionScreen"); 1497 } 1498 1499 /* 1500 * Dump the layers in the purgatory 1501 */ 1502 1503 const size_t purgatorySize = mLayerPurgatory.size(); 1504 snprintf(buffer, SIZE, "Purgatory state (%d entries)\n", purgatorySize); 1505 result.append(buffer); 1506 for (size_t i=0 ; i<purgatorySize ; i++) { 1507 const sp<LayerBase>& layer(mLayerPurgatory.itemAt(i)); 1508 layer->shortDump(result, buffer, SIZE); 1509 } 1510 1511 /* 1512 * Dump SurfaceFlinger global state 1513 */ 1514 1515 snprintf(buffer, SIZE, "SurfaceFlinger global state\n"); 1516 result.append(buffer); 1517 mWormholeRegion.dump(result, "WormholeRegion"); 1518 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1519 snprintf(buffer, SIZE, 1520 " display frozen: %s, freezeCount=%d, orientation=%d, canDraw=%d\n", 1521 mFreezeDisplay?"yes":"no", mFreezeCount, 1522 mCurrentState.orientation, hw.canDraw()); 1523 result.append(buffer); 1524 snprintf(buffer, SIZE, 1525 " last eglSwapBuffers() time: %f us\n" 1526 " last transaction time : %f us\n", 1527 mLastSwapBufferTime/1000.0, mLastTransactionTime/1000.0); 1528 result.append(buffer); 1529 1530 if (inSwapBuffersDuration || !locked) { 1531 snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n", 1532 inSwapBuffersDuration/1000.0); 1533 result.append(buffer); 1534 } 1535 1536 if (inTransactionDuration || !locked) { 1537 snprintf(buffer, SIZE, " transaction time: %f us\n", 1538 inTransactionDuration/1000.0); 1539 result.append(buffer); 1540 } 1541 1542 /* 1543 * Dump HWComposer state 1544 */ 1545 HWComposer& hwc(hw.getHwComposer()); 1546 snprintf(buffer, SIZE, " h/w composer %s and %s\n", 1547 hwc.initCheck()==NO_ERROR ? "present" : "not present", 1548 mDebugDisableHWC ? "disabled" : "enabled"); 1549 result.append(buffer); 1550 hwc.dump(result, buffer, SIZE); 1551 1552 /* 1553 * Dump gralloc state 1554 */ 1555 const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get()); 1556 alloc.dump(result); 1557 hw.dump(result); 1558 1559 if (locked) { 1560 mStateLock.unlock(); 1561 } 1562 } 1563 write(fd, result.string(), result.size()); 1564 return NO_ERROR; 1565} 1566 1567status_t SurfaceFlinger::onTransact( 1568 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1569{ 1570 switch (code) { 1571 case CREATE_CONNECTION: 1572 case OPEN_GLOBAL_TRANSACTION: 1573 case CLOSE_GLOBAL_TRANSACTION: 1574 case SET_ORIENTATION: 1575 case FREEZE_DISPLAY: 1576 case UNFREEZE_DISPLAY: 1577 case BOOT_FINISHED: 1578 case TURN_ELECTRON_BEAM_OFF: 1579 case TURN_ELECTRON_BEAM_ON: 1580 { 1581 // codes that require permission check 1582 IPCThreadState* ipc = IPCThreadState::self(); 1583 const int pid = ipc->getCallingPid(); 1584 const int uid = ipc->getCallingUid(); 1585 if ((uid != AID_GRAPHICS) && !mAccessSurfaceFlinger.check(pid, uid)) { 1586 LOGE("Permission Denial: " 1587 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1588 return PERMISSION_DENIED; 1589 } 1590 break; 1591 } 1592 case CAPTURE_SCREEN: 1593 { 1594 // codes that require permission check 1595 IPCThreadState* ipc = IPCThreadState::self(); 1596 const int pid = ipc->getCallingPid(); 1597 const int uid = ipc->getCallingUid(); 1598 if ((uid != AID_GRAPHICS) && !mReadFramebuffer.check(pid, uid)) { 1599 LOGE("Permission Denial: " 1600 "can't read framebuffer pid=%d, uid=%d", pid, uid); 1601 return PERMISSION_DENIED; 1602 } 1603 break; 1604 } 1605 } 1606 1607 status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags); 1608 if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) { 1609 CHECK_INTERFACE(ISurfaceComposer, data, reply); 1610 if (UNLIKELY(!mHardwareTest.checkCalling())) { 1611 IPCThreadState* ipc = IPCThreadState::self(); 1612 const int pid = ipc->getCallingPid(); 1613 const int uid = ipc->getCallingUid(); 1614 LOGE("Permission Denial: " 1615 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1616 return PERMISSION_DENIED; 1617 } 1618 int n; 1619 switch (code) { 1620 case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE 1621 case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE 1622 return NO_ERROR; 1623 case 1002: // SHOW_UPDATES 1624 n = data.readInt32(); 1625 mDebugRegion = n ? n : (mDebugRegion ? 0 : 1); 1626 return NO_ERROR; 1627 case 1003: // SHOW_BACKGROUND 1628 n = data.readInt32(); 1629 mDebugBackground = n ? 1 : 0; 1630 return NO_ERROR; 1631 case 1008: // toggle use of hw composer 1632 n = data.readInt32(); 1633 mDebugDisableHWC = n ? 1 : 0; 1634 invalidateHwcGeometry(); 1635 // fall-through... 1636 case 1004:{ // repaint everything 1637 Mutex::Autolock _l(mStateLock); 1638 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1639 mDirtyRegion.set(hw.bounds()); // careful that's not thread-safe 1640 signalEvent(); 1641 return NO_ERROR; 1642 } 1643 case 1005:{ // force transaction 1644 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1645 return NO_ERROR; 1646 } 1647 case 1006:{ // enable/disable GraphicLog 1648 int enabled = data.readInt32(); 1649 GraphicLog::getInstance().setEnabled(enabled); 1650 return NO_ERROR; 1651 } 1652 case 1007: // set mFreezeCount 1653 mFreezeCount = data.readInt32(); 1654 mFreezeDisplayTime = 0; 1655 return NO_ERROR; 1656 case 1010: // interrogate. 1657 reply->writeInt32(0); 1658 reply->writeInt32(0); 1659 reply->writeInt32(mDebugRegion); 1660 reply->writeInt32(mDebugBackground); 1661 return NO_ERROR; 1662 case 1013: { 1663 Mutex::Autolock _l(mStateLock); 1664 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1665 reply->writeInt32(hw.getPageFlipCount()); 1666 } 1667 return NO_ERROR; 1668 } 1669 } 1670 return err; 1671} 1672 1673// --------------------------------------------------------------------------- 1674 1675status_t SurfaceFlinger::renderScreenToTextureLocked(DisplayID dpy, 1676 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1677{ 1678 if (!GLExtensions::getInstance().haveFramebufferObject()) 1679 return INVALID_OPERATION; 1680 1681 // get screen geometry 1682 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 1683 const uint32_t hw_w = hw.getWidth(); 1684 const uint32_t hw_h = hw.getHeight(); 1685 GLfloat u = 1; 1686 GLfloat v = 1; 1687 1688 // make sure to clear all GL error flags 1689 while ( glGetError() != GL_NO_ERROR ) ; 1690 1691 // create a FBO 1692 GLuint name, tname; 1693 glGenTextures(1, &tname); 1694 glBindTexture(GL_TEXTURE_2D, tname); 1695 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1696 hw_w, hw_h, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1697 if (glGetError() != GL_NO_ERROR) { 1698 while ( glGetError() != GL_NO_ERROR ) ; 1699 GLint tw = (2 << (31 - clz(hw_w))); 1700 GLint th = (2 << (31 - clz(hw_h))); 1701 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1702 tw, th, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1703 u = GLfloat(hw_w) / tw; 1704 v = GLfloat(hw_h) / th; 1705 } 1706 glGenFramebuffersOES(1, &name); 1707 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 1708 glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, 1709 GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0); 1710 1711 // redraw the screen entirely... 1712 glClearColor(0,0,0,1); 1713 glClear(GL_COLOR_BUFFER_BIT); 1714 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1715 const size_t count = layers.size(); 1716 for (size_t i=0 ; i<count ; ++i) { 1717 const sp<LayerBase>& layer(layers[i]); 1718 layer->drawForSreenShot(); 1719 } 1720 1721 // back to main framebuffer 1722 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1723 glDisable(GL_SCISSOR_TEST); 1724 glDeleteFramebuffersOES(1, &name); 1725 1726 *textureName = tname; 1727 *uOut = u; 1728 *vOut = v; 1729 return NO_ERROR; 1730} 1731 1732// --------------------------------------------------------------------------- 1733 1734status_t SurfaceFlinger::electronBeamOffAnimationImplLocked() 1735{ 1736 status_t result = PERMISSION_DENIED; 1737 1738 if (!GLExtensions::getInstance().haveFramebufferObject()) 1739 return INVALID_OPERATION; 1740 1741 // get screen geometry 1742 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1743 const uint32_t hw_w = hw.getWidth(); 1744 const uint32_t hw_h = hw.getHeight(); 1745 const Region screenBounds(hw.bounds()); 1746 1747 GLfloat u, v; 1748 GLuint tname; 1749 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1750 if (result != NO_ERROR) { 1751 return result; 1752 } 1753 1754 GLfloat vtx[8]; 1755 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1756 glEnable(GL_TEXTURE_2D); 1757 glBindTexture(GL_TEXTURE_2D, tname); 1758 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1759 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1760 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1761 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1762 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1763 glVertexPointer(2, GL_FLOAT, 0, vtx); 1764 1765 class s_curve_interpolator { 1766 const float nbFrames, s, v; 1767 public: 1768 s_curve_interpolator(int nbFrames, float s) 1769 : nbFrames(1.0f / (nbFrames-1)), s(s), 1770 v(1.0f + expf(-s + 0.5f*s)) { 1771 } 1772 float operator()(int f) { 1773 const float x = f * nbFrames; 1774 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1775 } 1776 }; 1777 1778 class v_stretch { 1779 const GLfloat hw_w, hw_h; 1780 public: 1781 v_stretch(uint32_t hw_w, uint32_t hw_h) 1782 : hw_w(hw_w), hw_h(hw_h) { 1783 } 1784 void operator()(GLfloat* vtx, float v) { 1785 const GLfloat w = hw_w + (hw_w * v); 1786 const GLfloat h = hw_h - (hw_h * v); 1787 const GLfloat x = (hw_w - w) * 0.5f; 1788 const GLfloat y = (hw_h - h) * 0.5f; 1789 vtx[0] = x; vtx[1] = y; 1790 vtx[2] = x; vtx[3] = y + h; 1791 vtx[4] = x + w; vtx[5] = y + h; 1792 vtx[6] = x + w; vtx[7] = y; 1793 } 1794 }; 1795 1796 class h_stretch { 1797 const GLfloat hw_w, hw_h; 1798 public: 1799 h_stretch(uint32_t hw_w, uint32_t hw_h) 1800 : hw_w(hw_w), hw_h(hw_h) { 1801 } 1802 void operator()(GLfloat* vtx, float v) { 1803 const GLfloat w = hw_w - (hw_w * v); 1804 const GLfloat h = 1.0f; 1805 const GLfloat x = (hw_w - w) * 0.5f; 1806 const GLfloat y = (hw_h - h) * 0.5f; 1807 vtx[0] = x; vtx[1] = y; 1808 vtx[2] = x; vtx[3] = y + h; 1809 vtx[4] = x + w; vtx[5] = y + h; 1810 vtx[6] = x + w; vtx[7] = y; 1811 } 1812 }; 1813 1814 // the full animation is 24 frames 1815 const int nbFrames = 12; 1816 s_curve_interpolator itr(nbFrames, 7.5f); 1817 s_curve_interpolator itg(nbFrames, 8.0f); 1818 s_curve_interpolator itb(nbFrames, 8.5f); 1819 1820 v_stretch vverts(hw_w, hw_h); 1821 glEnable(GL_BLEND); 1822 glBlendFunc(GL_ONE, GL_ONE); 1823 for (int i=0 ; i<nbFrames ; i++) { 1824 float x, y, w, h; 1825 const float vr = itr(i); 1826 const float vg = itg(i); 1827 const float vb = itb(i); 1828 1829 // clear screen 1830 glColorMask(1,1,1,1); 1831 glClear(GL_COLOR_BUFFER_BIT); 1832 glEnable(GL_TEXTURE_2D); 1833 1834 // draw the red plane 1835 vverts(vtx, vr); 1836 glColorMask(1,0,0,1); 1837 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1838 1839 // draw the green plane 1840 vverts(vtx, vg); 1841 glColorMask(0,1,0,1); 1842 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1843 1844 // draw the blue plane 1845 vverts(vtx, vb); 1846 glColorMask(0,0,1,1); 1847 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1848 1849 // draw the white highlight (we use the last vertices) 1850 glDisable(GL_TEXTURE_2D); 1851 glColorMask(1,1,1,1); 1852 glColor4f(vg, vg, vg, 1); 1853 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1854 hw.flip(screenBounds); 1855 } 1856 1857 h_stretch hverts(hw_w, hw_h); 1858 glDisable(GL_BLEND); 1859 glDisable(GL_TEXTURE_2D); 1860 glColorMask(1,1,1,1); 1861 for (int i=0 ; i<nbFrames ; i++) { 1862 const float v = itg(i); 1863 hverts(vtx, v); 1864 glClear(GL_COLOR_BUFFER_BIT); 1865 glColor4f(1-v, 1-v, 1-v, 1); 1866 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1867 hw.flip(screenBounds); 1868 } 1869 1870 glColorMask(1,1,1,1); 1871 glEnable(GL_SCISSOR_TEST); 1872 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1873 glDeleteTextures(1, &tname); 1874 return NO_ERROR; 1875} 1876 1877status_t SurfaceFlinger::electronBeamOnAnimationImplLocked() 1878{ 1879 status_t result = PERMISSION_DENIED; 1880 1881 if (!GLExtensions::getInstance().haveFramebufferObject()) 1882 return INVALID_OPERATION; 1883 1884 1885 // get screen geometry 1886 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1887 const uint32_t hw_w = hw.getWidth(); 1888 const uint32_t hw_h = hw.getHeight(); 1889 const Region screenBounds(hw.bounds()); 1890 1891 GLfloat u, v; 1892 GLuint tname; 1893 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1894 if (result != NO_ERROR) { 1895 return result; 1896 } 1897 1898 // back to main framebuffer 1899 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1900 glDisable(GL_SCISSOR_TEST); 1901 1902 GLfloat vtx[8]; 1903 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1904 glEnable(GL_TEXTURE_2D); 1905 glBindTexture(GL_TEXTURE_2D, tname); 1906 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 1907 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1908 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1909 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1910 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1911 glVertexPointer(2, GL_FLOAT, 0, vtx); 1912 1913 class s_curve_interpolator { 1914 const float nbFrames, s, v; 1915 public: 1916 s_curve_interpolator(int nbFrames, float s) 1917 : nbFrames(1.0f / (nbFrames-1)), s(s), 1918 v(1.0f + expf(-s + 0.5f*s)) { 1919 } 1920 float operator()(int f) { 1921 const float x = f * nbFrames; 1922 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1923 } 1924 }; 1925 1926 class v_stretch { 1927 const GLfloat hw_w, hw_h; 1928 public: 1929 v_stretch(uint32_t hw_w, uint32_t hw_h) 1930 : hw_w(hw_w), hw_h(hw_h) { 1931 } 1932 void operator()(GLfloat* vtx, float v) { 1933 const GLfloat w = hw_w + (hw_w * v); 1934 const GLfloat h = hw_h - (hw_h * v); 1935 const GLfloat x = (hw_w - w) * 0.5f; 1936 const GLfloat y = (hw_h - h) * 0.5f; 1937 vtx[0] = x; vtx[1] = y; 1938 vtx[2] = x; vtx[3] = y + h; 1939 vtx[4] = x + w; vtx[5] = y + h; 1940 vtx[6] = x + w; vtx[7] = y; 1941 } 1942 }; 1943 1944 class h_stretch { 1945 const GLfloat hw_w, hw_h; 1946 public: 1947 h_stretch(uint32_t hw_w, uint32_t hw_h) 1948 : hw_w(hw_w), hw_h(hw_h) { 1949 } 1950 void operator()(GLfloat* vtx, float v) { 1951 const GLfloat w = hw_w - (hw_w * v); 1952 const GLfloat h = 1.0f; 1953 const GLfloat x = (hw_w - w) * 0.5f; 1954 const GLfloat y = (hw_h - h) * 0.5f; 1955 vtx[0] = x; vtx[1] = y; 1956 vtx[2] = x; vtx[3] = y + h; 1957 vtx[4] = x + w; vtx[5] = y + h; 1958 vtx[6] = x + w; vtx[7] = y; 1959 } 1960 }; 1961 1962 // the full animation is 12 frames 1963 int nbFrames = 8; 1964 s_curve_interpolator itr(nbFrames, 7.5f); 1965 s_curve_interpolator itg(nbFrames, 8.0f); 1966 s_curve_interpolator itb(nbFrames, 8.5f); 1967 1968 h_stretch hverts(hw_w, hw_h); 1969 glDisable(GL_BLEND); 1970 glDisable(GL_TEXTURE_2D); 1971 glColorMask(1,1,1,1); 1972 for (int i=nbFrames-1 ; i>=0 ; i--) { 1973 const float v = itg(i); 1974 hverts(vtx, v); 1975 glClear(GL_COLOR_BUFFER_BIT); 1976 glColor4f(1-v, 1-v, 1-v, 1); 1977 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1978 hw.flip(screenBounds); 1979 } 1980 1981 nbFrames = 4; 1982 v_stretch vverts(hw_w, hw_h); 1983 glEnable(GL_BLEND); 1984 glBlendFunc(GL_ONE, GL_ONE); 1985 for (int i=nbFrames-1 ; i>=0 ; i--) { 1986 float x, y, w, h; 1987 const float vr = itr(i); 1988 const float vg = itg(i); 1989 const float vb = itb(i); 1990 1991 // clear screen 1992 glColorMask(1,1,1,1); 1993 glClear(GL_COLOR_BUFFER_BIT); 1994 glEnable(GL_TEXTURE_2D); 1995 1996 // draw the red plane 1997 vverts(vtx, vr); 1998 glColorMask(1,0,0,1); 1999 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2000 2001 // draw the green plane 2002 vverts(vtx, vg); 2003 glColorMask(0,1,0,1); 2004 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2005 2006 // draw the blue plane 2007 vverts(vtx, vb); 2008 glColorMask(0,0,1,1); 2009 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2010 2011 hw.flip(screenBounds); 2012 } 2013 2014 glColorMask(1,1,1,1); 2015 glEnable(GL_SCISSOR_TEST); 2016 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 2017 glDeleteTextures(1, &tname); 2018 2019 return NO_ERROR; 2020} 2021 2022// --------------------------------------------------------------------------- 2023 2024status_t SurfaceFlinger::turnElectronBeamOffImplLocked(int32_t mode) 2025{ 2026 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2027 if (!hw.canDraw()) { 2028 // we're already off 2029 return NO_ERROR; 2030 } 2031 if (mode & ISurfaceComposer::eElectronBeamAnimationOff) { 2032 electronBeamOffAnimationImplLocked(); 2033 } 2034 2035 // always clear the whole screen at the end of the animation 2036 glClearColor(0,0,0,1); 2037 glDisable(GL_SCISSOR_TEST); 2038 glClear(GL_COLOR_BUFFER_BIT); 2039 glEnable(GL_SCISSOR_TEST); 2040 hw.flip( Region(hw.bounds()) ); 2041 2042 hw.setCanDraw(false); 2043 return NO_ERROR; 2044} 2045 2046status_t SurfaceFlinger::turnElectronBeamOff(int32_t mode) 2047{ 2048 class MessageTurnElectronBeamOff : public MessageBase { 2049 SurfaceFlinger* flinger; 2050 int32_t mode; 2051 status_t result; 2052 public: 2053 MessageTurnElectronBeamOff(SurfaceFlinger* flinger, int32_t mode) 2054 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2055 } 2056 status_t getResult() const { 2057 return result; 2058 } 2059 virtual bool handler() { 2060 Mutex::Autolock _l(flinger->mStateLock); 2061 result = flinger->turnElectronBeamOffImplLocked(mode); 2062 return true; 2063 } 2064 }; 2065 2066 sp<MessageBase> msg = new MessageTurnElectronBeamOff(this, mode); 2067 status_t res = postMessageSync(msg); 2068 if (res == NO_ERROR) { 2069 res = static_cast<MessageTurnElectronBeamOff*>( msg.get() )->getResult(); 2070 2071 // work-around: when the power-manager calls us we activate the 2072 // animation. eventually, the "on" animation will be called 2073 // by the power-manager itself 2074 mElectronBeamAnimationMode = mode; 2075 } 2076 return res; 2077} 2078 2079// --------------------------------------------------------------------------- 2080 2081status_t SurfaceFlinger::turnElectronBeamOnImplLocked(int32_t mode) 2082{ 2083 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2084 if (hw.canDraw()) { 2085 // we're already on 2086 return NO_ERROR; 2087 } 2088 if (mode & ISurfaceComposer::eElectronBeamAnimationOn) { 2089 electronBeamOnAnimationImplLocked(); 2090 } 2091 hw.setCanDraw(true); 2092 2093 // make sure to redraw the whole screen when the animation is done 2094 mDirtyRegion.set(hw.bounds()); 2095 signalEvent(); 2096 2097 return NO_ERROR; 2098} 2099 2100status_t SurfaceFlinger::turnElectronBeamOn(int32_t mode) 2101{ 2102 class MessageTurnElectronBeamOn : public MessageBase { 2103 SurfaceFlinger* flinger; 2104 int32_t mode; 2105 status_t result; 2106 public: 2107 MessageTurnElectronBeamOn(SurfaceFlinger* flinger, int32_t mode) 2108 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2109 } 2110 status_t getResult() const { 2111 return result; 2112 } 2113 virtual bool handler() { 2114 Mutex::Autolock _l(flinger->mStateLock); 2115 result = flinger->turnElectronBeamOnImplLocked(mode); 2116 return true; 2117 } 2118 }; 2119 2120 postMessageAsync( new MessageTurnElectronBeamOn(this, mode) ); 2121 return NO_ERROR; 2122} 2123 2124// --------------------------------------------------------------------------- 2125 2126status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy, 2127 sp<IMemoryHeap>* heap, 2128 uint32_t* w, uint32_t* h, PixelFormat* f, 2129 uint32_t sw, uint32_t sh, 2130 uint32_t minLayerZ, uint32_t maxLayerZ) 2131{ 2132 status_t result = PERMISSION_DENIED; 2133 2134 // only one display supported for now 2135 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2136 return BAD_VALUE; 2137 2138 if (!GLExtensions::getInstance().haveFramebufferObject()) 2139 return INVALID_OPERATION; 2140 2141 // get screen geometry 2142 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 2143 const uint32_t hw_w = hw.getWidth(); 2144 const uint32_t hw_h = hw.getHeight(); 2145 2146 if ((sw > hw_w) || (sh > hw_h)) 2147 return BAD_VALUE; 2148 2149 sw = (!sw) ? hw_w : sw; 2150 sh = (!sh) ? hw_h : sh; 2151 const size_t size = sw * sh * 4; 2152 2153 LOGD("screenshot: sw=%d, sh=%d, minZ=%d, maxZ=%d", 2154 sw, sh, minLayerZ, maxLayerZ); 2155 2156 // make sure to clear all GL error flags 2157 while ( glGetError() != GL_NO_ERROR ) ; 2158 2159 // create a FBO 2160 GLuint name, tname; 2161 glGenRenderbuffersOES(1, &tname); 2162 glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname); 2163 glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh); 2164 glGenFramebuffersOES(1, &name); 2165 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 2166 glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, 2167 GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname); 2168 2169 GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES); 2170 2171 if (status == GL_FRAMEBUFFER_COMPLETE_OES) { 2172 2173 // invert everything, b/c glReadPixel() below will invert the FB 2174 glViewport(0, 0, sw, sh); 2175 glScissor(0, 0, sw, sh); 2176 glMatrixMode(GL_PROJECTION); 2177 glPushMatrix(); 2178 glLoadIdentity(); 2179 glOrthof(0, hw_w, 0, hw_h, 0, 1); 2180 glMatrixMode(GL_MODELVIEW); 2181 2182 // redraw the screen entirely... 2183 glClearColor(0,0,0,1); 2184 glClear(GL_COLOR_BUFFER_BIT); 2185 2186 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 2187 const size_t count = layers.size(); 2188 for (size_t i=0 ; i<count ; ++i) { 2189 const sp<LayerBase>& layer(layers[i]); 2190 const uint32_t z = layer->drawingState().z; 2191 if (z >= minLayerZ && z <= maxLayerZ) { 2192 layer->drawForSreenShot(); 2193 } 2194 } 2195 2196 // XXX: this is needed on tegra 2197 glScissor(0, 0, sw, sh); 2198 2199 // check for errors and return screen capture 2200 if (glGetError() != GL_NO_ERROR) { 2201 // error while rendering 2202 result = INVALID_OPERATION; 2203 } else { 2204 // allocate shared memory large enough to hold the 2205 // screen capture 2206 sp<MemoryHeapBase> base( 2207 new MemoryHeapBase(size, 0, "screen-capture") ); 2208 void* const ptr = base->getBase(); 2209 if (ptr) { 2210 // capture the screen with glReadPixels() 2211 glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr); 2212 if (glGetError() == GL_NO_ERROR) { 2213 *heap = base; 2214 *w = sw; 2215 *h = sh; 2216 *f = PIXEL_FORMAT_RGBA_8888; 2217 result = NO_ERROR; 2218 } 2219 } else { 2220 result = NO_MEMORY; 2221 } 2222 } 2223 glEnable(GL_SCISSOR_TEST); 2224 glViewport(0, 0, hw_w, hw_h); 2225 glMatrixMode(GL_PROJECTION); 2226 glPopMatrix(); 2227 glMatrixMode(GL_MODELVIEW); 2228 } else { 2229 result = BAD_VALUE; 2230 } 2231 2232 // release FBO resources 2233 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 2234 glDeleteRenderbuffersOES(1, &tname); 2235 glDeleteFramebuffersOES(1, &name); 2236 2237 hw.compositionComplete(); 2238 2239 LOGD("screenshot: result = %s", result<0 ? strerror(result) : "OK"); 2240 2241 return result; 2242} 2243 2244 2245status_t SurfaceFlinger::captureScreen(DisplayID dpy, 2246 sp<IMemoryHeap>* heap, 2247 uint32_t* width, uint32_t* height, PixelFormat* format, 2248 uint32_t sw, uint32_t sh, 2249 uint32_t minLayerZ, uint32_t maxLayerZ) 2250{ 2251 // only one display supported for now 2252 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2253 return BAD_VALUE; 2254 2255 if (!GLExtensions::getInstance().haveFramebufferObject()) 2256 return INVALID_OPERATION; 2257 2258 class MessageCaptureScreen : public MessageBase { 2259 SurfaceFlinger* flinger; 2260 DisplayID dpy; 2261 sp<IMemoryHeap>* heap; 2262 uint32_t* w; 2263 uint32_t* h; 2264 PixelFormat* f; 2265 uint32_t sw; 2266 uint32_t sh; 2267 uint32_t minLayerZ; 2268 uint32_t maxLayerZ; 2269 status_t result; 2270 public: 2271 MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy, 2272 sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f, 2273 uint32_t sw, uint32_t sh, 2274 uint32_t minLayerZ, uint32_t maxLayerZ) 2275 : flinger(flinger), dpy(dpy), 2276 heap(heap), w(w), h(h), f(f), sw(sw), sh(sh), 2277 minLayerZ(minLayerZ), maxLayerZ(maxLayerZ), 2278 result(PERMISSION_DENIED) 2279 { 2280 } 2281 status_t getResult() const { 2282 return result; 2283 } 2284 virtual bool handler() { 2285 Mutex::Autolock _l(flinger->mStateLock); 2286 2287 // if we have secure windows, never allow the screen capture 2288 if (flinger->mSecureFrameBuffer) 2289 return true; 2290 2291 result = flinger->captureScreenImplLocked(dpy, 2292 heap, w, h, f, sw, sh, minLayerZ, maxLayerZ); 2293 2294 return true; 2295 } 2296 }; 2297 2298 sp<MessageBase> msg = new MessageCaptureScreen(this, 2299 dpy, heap, width, height, format, sw, sh, minLayerZ, maxLayerZ); 2300 status_t res = postMessageSync(msg); 2301 if (res == NO_ERROR) { 2302 res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult(); 2303 } 2304 return res; 2305} 2306 2307// --------------------------------------------------------------------------- 2308 2309sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const 2310{ 2311 sp<Layer> result; 2312 Mutex::Autolock _l(mStateLock); 2313 result = mLayerMap.valueFor( sur->asBinder() ).promote(); 2314 return result; 2315} 2316 2317// --------------------------------------------------------------------------- 2318 2319Client::Client(const sp<SurfaceFlinger>& flinger) 2320 : mFlinger(flinger), mNameGenerator(1) 2321{ 2322} 2323 2324Client::~Client() 2325{ 2326 const size_t count = mLayers.size(); 2327 for (size_t i=0 ; i<count ; i++) { 2328 sp<LayerBaseClient> layer(mLayers.valueAt(i).promote()); 2329 if (layer != 0) { 2330 mFlinger->removeLayer(layer); 2331 } 2332 } 2333} 2334 2335status_t Client::initCheck() const { 2336 return NO_ERROR; 2337} 2338 2339ssize_t Client::attachLayer(const sp<LayerBaseClient>& layer) 2340{ 2341 int32_t name = android_atomic_inc(&mNameGenerator); 2342 mLayers.add(name, layer); 2343 return name; 2344} 2345 2346void Client::detachLayer(const LayerBaseClient* layer) 2347{ 2348 // we do a linear search here, because this doesn't happen often 2349 const size_t count = mLayers.size(); 2350 for (size_t i=0 ; i<count ; i++) { 2351 if (mLayers.valueAt(i) == layer) { 2352 mLayers.removeItemsAt(i, 1); 2353 break; 2354 } 2355 } 2356} 2357sp<LayerBaseClient> Client::getLayerUser(int32_t i) const { 2358 sp<LayerBaseClient> lbc; 2359 const wp<LayerBaseClient>& layer(mLayers.valueFor(i)); 2360 if (layer != 0) { 2361 lbc = layer.promote(); 2362 LOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i)); 2363 } 2364 return lbc; 2365} 2366 2367sp<IMemoryHeap> Client::getControlBlock() const { 2368 return 0; 2369} 2370ssize_t Client::getTokenForSurface(const sp<ISurface>& sur) const { 2371 return -1; 2372} 2373sp<ISurface> Client::createSurface( 2374 ISurfaceComposerClient::surface_data_t* params, int pid, 2375 const String8& name, 2376 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2377 uint32_t flags) 2378{ 2379 return mFlinger->createSurface(this, pid, name, params, 2380 display, w, h, format, flags); 2381} 2382status_t Client::destroySurface(SurfaceID sid) { 2383 return mFlinger->removeSurface(this, sid); 2384} 2385status_t Client::setState(int32_t count, const layer_state_t* states) { 2386 return mFlinger->setClientState(this, count, states); 2387} 2388 2389// --------------------------------------------------------------------------- 2390 2391UserClient::UserClient(const sp<SurfaceFlinger>& flinger) 2392 : ctrlblk(0), mBitmap(0), mFlinger(flinger) 2393{ 2394 const int pgsize = getpagesize(); 2395 const int cblksize = ((sizeof(SharedClient)+(pgsize-1))&~(pgsize-1)); 2396 2397 mCblkHeap = new MemoryHeapBase(cblksize, 0, 2398 "SurfaceFlinger Client control-block"); 2399 2400 ctrlblk = static_cast<SharedClient *>(mCblkHeap->getBase()); 2401 if (ctrlblk) { // construct the shared structure in-place. 2402 new(ctrlblk) SharedClient; 2403 } 2404} 2405 2406UserClient::~UserClient() 2407{ 2408 if (ctrlblk) { 2409 ctrlblk->~SharedClient(); // destroy our shared-structure. 2410 } 2411 2412 /* 2413 * When a UserClient dies, it's unclear what to do exactly. 2414 * We could go ahead and destroy all surfaces linked to that client 2415 * however, it wouldn't be fair to the main Client 2416 * (usually the the window-manager), which might want to re-target 2417 * the layer to another UserClient. 2418 * I think the best is to do nothing, or not much; in most cases the 2419 * WM itself will go ahead and clean things up when it detects a client of 2420 * his has died. 2421 * The remaining question is what to display? currently we keep 2422 * just keep the current buffer. 2423 */ 2424} 2425 2426status_t UserClient::initCheck() const { 2427 return ctrlblk == 0 ? NO_INIT : NO_ERROR; 2428} 2429 2430void UserClient::detachLayer(const Layer* layer) 2431{ 2432 int32_t name = layer->getToken(); 2433 if (name >= 0) { 2434 int32_t mask = 1LU<<name; 2435 if ((android_atomic_and(~mask, &mBitmap) & mask) == 0) { 2436 LOGW("token %d wasn't marked as used %08x", name, int(mBitmap)); 2437 } 2438 } 2439} 2440 2441sp<IMemoryHeap> UserClient::getControlBlock() const { 2442 return mCblkHeap; 2443} 2444 2445ssize_t UserClient::getTokenForSurface(const sp<ISurface>& sur) const 2446{ 2447 int32_t name = NAME_NOT_FOUND; 2448 sp<Layer> layer(mFlinger->getLayer(sur)); 2449 if (layer == 0) { 2450 return name; 2451 } 2452 2453 // if this layer already has a token, just return it 2454 name = layer->getToken(); 2455 if ((name >= 0) && (layer->getClient() == this)) { 2456 return name; 2457 } 2458 2459 name = 0; 2460 do { 2461 int32_t mask = 1LU<<name; 2462 if ((android_atomic_or(mask, &mBitmap) & mask) == 0) { 2463 // we found and locked that name 2464 status_t err = layer->setToken( 2465 const_cast<UserClient*>(this), ctrlblk, name); 2466 if (err != NO_ERROR) { 2467 // free the name 2468 android_atomic_and(~mask, &mBitmap); 2469 name = err; 2470 } 2471 break; 2472 } 2473 if (++name > 31) 2474 name = NO_MEMORY; 2475 } while(name >= 0); 2476 2477 //LOGD("getTokenForSurface(%p) => %d (client=%p, bitmap=%08lx)", 2478 // sur->asBinder().get(), name, this, mBitmap); 2479 return name; 2480} 2481 2482sp<ISurface> UserClient::createSurface( 2483 ISurfaceComposerClient::surface_data_t* params, int pid, 2484 const String8& name, 2485 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2486 uint32_t flags) { 2487 return 0; 2488} 2489status_t UserClient::destroySurface(SurfaceID sid) { 2490 return INVALID_OPERATION; 2491} 2492status_t UserClient::setState(int32_t count, const layer_state_t* states) { 2493 return INVALID_OPERATION; 2494} 2495 2496// --------------------------------------------------------------------------- 2497 2498GraphicBufferAlloc::GraphicBufferAlloc() {} 2499 2500GraphicBufferAlloc::~GraphicBufferAlloc() {} 2501 2502sp<GraphicBuffer> GraphicBufferAlloc::createGraphicBuffer(uint32_t w, uint32_t h, 2503 PixelFormat format, uint32_t usage) { 2504 sp<GraphicBuffer> graphicBuffer(new GraphicBuffer(w, h, format, usage)); 2505 status_t err = graphicBuffer->initCheck(); 2506 if (err != 0) { 2507 LOGE("createGraphicBuffer: init check failed: %d", err); 2508 return 0; 2509 } else if (graphicBuffer->handle == 0) { 2510 LOGE("createGraphicBuffer: unable to create GraphicBuffer"); 2511 return 0; 2512 } 2513 Mutex::Autolock _l(mLock); 2514 mBuffers.add(graphicBuffer); 2515 return graphicBuffer; 2516} 2517 2518void GraphicBufferAlloc::freeAllGraphicBuffersExcept(int bufIdx) { 2519 Mutex::Autolock _l(mLock); 2520 if (0 <= bufIdx && bufIdx < mBuffers.size()) { 2521 sp<GraphicBuffer> b(mBuffers[bufIdx]); 2522 mBuffers.clear(); 2523 mBuffers.add(b); 2524 } else { 2525 mBuffers.clear(); 2526 } 2527} 2528 2529// --------------------------------------------------------------------------- 2530 2531GraphicPlane::GraphicPlane() 2532 : mHw(0) 2533{ 2534} 2535 2536GraphicPlane::~GraphicPlane() { 2537 delete mHw; 2538} 2539 2540bool GraphicPlane::initialized() const { 2541 return mHw ? true : false; 2542} 2543 2544int GraphicPlane::getWidth() const { 2545 return mWidth; 2546} 2547 2548int GraphicPlane::getHeight() const { 2549 return mHeight; 2550} 2551 2552void GraphicPlane::setDisplayHardware(DisplayHardware *hw) 2553{ 2554 mHw = hw; 2555 2556 // initialize the display orientation transform. 2557 // it's a constant that should come from the display driver. 2558 int displayOrientation = ISurfaceComposer::eOrientationDefault; 2559 char property[PROPERTY_VALUE_MAX]; 2560 if (property_get("ro.sf.hwrotation", property, NULL) > 0) { 2561 //displayOrientation 2562 switch (atoi(property)) { 2563 case 90: 2564 displayOrientation = ISurfaceComposer::eOrientation90; 2565 break; 2566 case 270: 2567 displayOrientation = ISurfaceComposer::eOrientation270; 2568 break; 2569 } 2570 } 2571 2572 const float w = hw->getWidth(); 2573 const float h = hw->getHeight(); 2574 GraphicPlane::orientationToTransfrom(displayOrientation, w, h, 2575 &mDisplayTransform); 2576 if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) { 2577 mDisplayWidth = h; 2578 mDisplayHeight = w; 2579 } else { 2580 mDisplayWidth = w; 2581 mDisplayHeight = h; 2582 } 2583 2584 setOrientation(ISurfaceComposer::eOrientationDefault); 2585} 2586 2587status_t GraphicPlane::orientationToTransfrom( 2588 int orientation, int w, int h, Transform* tr) 2589{ 2590 uint32_t flags = 0; 2591 switch (orientation) { 2592 case ISurfaceComposer::eOrientationDefault: 2593 flags = Transform::ROT_0; 2594 break; 2595 case ISurfaceComposer::eOrientation90: 2596 flags = Transform::ROT_90; 2597 break; 2598 case ISurfaceComposer::eOrientation180: 2599 flags = Transform::ROT_180; 2600 break; 2601 case ISurfaceComposer::eOrientation270: 2602 flags = Transform::ROT_270; 2603 break; 2604 default: 2605 return BAD_VALUE; 2606 } 2607 tr->set(flags, w, h); 2608 return NO_ERROR; 2609} 2610 2611status_t GraphicPlane::setOrientation(int orientation) 2612{ 2613 // If the rotation can be handled in hardware, this is where 2614 // the magic should happen. 2615 2616 const DisplayHardware& hw(displayHardware()); 2617 const float w = mDisplayWidth; 2618 const float h = mDisplayHeight; 2619 mWidth = int(w); 2620 mHeight = int(h); 2621 2622 Transform orientationTransform; 2623 GraphicPlane::orientationToTransfrom(orientation, w, h, 2624 &orientationTransform); 2625 if (orientation & ISurfaceComposer::eOrientationSwapMask) { 2626 mWidth = int(h); 2627 mHeight = int(w); 2628 } 2629 2630 mOrientation = orientation; 2631 mGlobalTransform = mDisplayTransform * orientationTransform; 2632 return NO_ERROR; 2633} 2634 2635const DisplayHardware& GraphicPlane::displayHardware() const { 2636 return *mHw; 2637} 2638 2639DisplayHardware& GraphicPlane::editDisplayHardware() { 2640 return *mHw; 2641} 2642 2643const Transform& GraphicPlane::transform() const { 2644 return mGlobalTransform; 2645} 2646 2647EGLDisplay GraphicPlane::getEGLDisplay() const { 2648 return mHw->getEGLDisplay(); 2649} 2650 2651// --------------------------------------------------------------------------- 2652 2653}; // namespace android 2654