SurfaceFlinger.cpp revision d9e8c64c3dce1612eb948a5c16ba4ff62202b423
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#include <binder/PermissionCache.h> 36 37#include <utils/String8.h> 38#include <utils/String16.h> 39#include <utils/StopWatch.h> 40 41#include <ui/GraphicBufferAllocator.h> 42#include <ui/GraphicLog.h> 43#include <ui/PixelFormat.h> 44 45#include <pixelflinger/pixelflinger.h> 46#include <GLES/gl.h> 47 48#include "clz.h" 49#include "GLExtensions.h" 50#include "Layer.h" 51#include "LayerDim.h" 52#include "SurfaceFlinger.h" 53 54#include "DisplayHardware/DisplayHardware.h" 55#include "DisplayHardware/HWComposer.h" 56 57#include <private/surfaceflinger/SharedBufferStack.h> 58 59/* ideally AID_GRAPHICS would be in a semi-public header 60 * or there would be a way to map a user/group name to its id 61 */ 62#ifndef AID_GRAPHICS 63#define AID_GRAPHICS 1003 64#endif 65 66#define DISPLAY_COUNT 1 67 68namespace android { 69// --------------------------------------------------------------------------- 70 71const String16 sHardwareTest("android.permission.HARDWARE_TEST"); 72const String16 sAccessSurfaceFlinger("android.permission.ACCESS_SURFACE_FLINGER"); 73const String16 sReadFramebuffer("android.permission.READ_FRAME_BUFFER"); 74const String16 sDump("android.permission.DUMP"); 75 76// --------------------------------------------------------------------------- 77 78SurfaceFlinger::SurfaceFlinger() 79 : BnSurfaceComposer(), Thread(false), 80 mTransactionFlags(0), 81 mResizeTransationPending(false), 82 mLayersRemoved(false), 83 mBootTime(systemTime()), 84 mVisibleRegionsDirty(false), 85 mHwWorkListDirty(false), 86 mDeferReleaseConsole(false), 87 mFreezeDisplay(false), 88 mElectronBeamAnimationMode(0), 89 mFreezeCount(0), 90 mFreezeDisplayTime(0), 91 mDebugRegion(0), 92 mDebugBackground(0), 93 mDebugDisableHWC(0), 94 mDebugInSwapBuffers(0), 95 mLastSwapBufferTime(0), 96 mDebugInTransaction(0), 97 mLastTransactionTime(0), 98 mBootFinished(false), 99 mConsoleSignals(0), 100 mSecureFrameBuffer(0) 101{ 102 init(); 103} 104 105void SurfaceFlinger::init() 106{ 107 LOGI("SurfaceFlinger is starting"); 108 109 // debugging stuff... 110 char value[PROPERTY_VALUE_MAX]; 111 property_get("debug.sf.showupdates", value, "0"); 112 mDebugRegion = atoi(value); 113 property_get("debug.sf.showbackground", value, "0"); 114 mDebugBackground = atoi(value); 115 116 LOGI_IF(mDebugRegion, "showupdates enabled"); 117 LOGI_IF(mDebugBackground, "showbackground enabled"); 118} 119 120SurfaceFlinger::~SurfaceFlinger() 121{ 122 glDeleteTextures(1, &mWormholeTexName); 123} 124 125sp<IMemoryHeap> SurfaceFlinger::getCblk() const 126{ 127 return mServerHeap; 128} 129 130sp<ISurfaceComposerClient> SurfaceFlinger::createConnection() 131{ 132 sp<ISurfaceComposerClient> bclient; 133 sp<Client> client(new Client(this)); 134 status_t err = client->initCheck(); 135 if (err == NO_ERROR) { 136 bclient = client; 137 } 138 return bclient; 139} 140 141sp<IGraphicBufferAlloc> SurfaceFlinger::createGraphicBufferAlloc() 142{ 143 sp<GraphicBufferAlloc> gba(new GraphicBufferAlloc()); 144 return gba; 145} 146 147const GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) const 148{ 149 LOGE_IF(uint32_t(dpy) >= DISPLAY_COUNT, "Invalid DisplayID %d", dpy); 150 const GraphicPlane& plane(mGraphicPlanes[dpy]); 151 return plane; 152} 153 154GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) 155{ 156 return const_cast<GraphicPlane&>( 157 const_cast<SurfaceFlinger const *>(this)->graphicPlane(dpy)); 158} 159 160void SurfaceFlinger::bootFinished() 161{ 162 const nsecs_t now = systemTime(); 163 const nsecs_t duration = now - mBootTime; 164 LOGI("Boot is finished (%ld ms)", long(ns2ms(duration)) ); 165 mBootFinished = true; 166 property_set("ctl.stop", "bootanim"); 167} 168 169void SurfaceFlinger::onFirstRef() 170{ 171 run("SurfaceFlinger", PRIORITY_URGENT_DISPLAY); 172 173 // Wait for the main thread to be done with its initialization 174 mReadyToRunBarrier.wait(); 175} 176 177static inline uint16_t pack565(int r, int g, int b) { 178 return (r<<11)|(g<<5)|b; 179} 180 181status_t SurfaceFlinger::readyToRun() 182{ 183 LOGI( "SurfaceFlinger's main thread ready to run. " 184 "Initializing graphics H/W..."); 185 186 // we only support one display currently 187 int dpy = 0; 188 189 { 190 // initialize the main display 191 GraphicPlane& plane(graphicPlane(dpy)); 192 DisplayHardware* const hw = new DisplayHardware(this, dpy); 193 plane.setDisplayHardware(hw); 194 } 195 196 // create the shared control-block 197 mServerHeap = new MemoryHeapBase(4096, 198 MemoryHeapBase::READ_ONLY, "SurfaceFlinger read-only heap"); 199 LOGE_IF(mServerHeap==0, "can't create shared memory dealer"); 200 201 mServerCblk = static_cast<surface_flinger_cblk_t*>(mServerHeap->getBase()); 202 LOGE_IF(mServerCblk==0, "can't get to shared control block's address"); 203 204 new(mServerCblk) surface_flinger_cblk_t; 205 206 // initialize primary screen 207 // (other display should be initialized in the same manner, but 208 // asynchronously, as they could come and go. None of this is supported 209 // yet). 210 const GraphicPlane& plane(graphicPlane(dpy)); 211 const DisplayHardware& hw = plane.displayHardware(); 212 const uint32_t w = hw.getWidth(); 213 const uint32_t h = hw.getHeight(); 214 const uint32_t f = hw.getFormat(); 215 hw.makeCurrent(); 216 217 // initialize the shared control block 218 mServerCblk->connected |= 1<<dpy; 219 display_cblk_t* dcblk = mServerCblk->displays + dpy; 220 memset(dcblk, 0, sizeof(display_cblk_t)); 221 dcblk->w = plane.getWidth(); 222 dcblk->h = plane.getHeight(); 223 dcblk->format = f; 224 dcblk->orientation = ISurfaceComposer::eOrientationDefault; 225 dcblk->xdpi = hw.getDpiX(); 226 dcblk->ydpi = hw.getDpiY(); 227 dcblk->fps = hw.getRefreshRate(); 228 dcblk->density = hw.getDensity(); 229 230 // Initialize OpenGL|ES 231 glPixelStorei(GL_UNPACK_ALIGNMENT, 4); 232 glPixelStorei(GL_PACK_ALIGNMENT, 4); 233 glEnableClientState(GL_VERTEX_ARRAY); 234 glEnable(GL_SCISSOR_TEST); 235 glShadeModel(GL_FLAT); 236 glDisable(GL_DITHER); 237 glDisable(GL_CULL_FACE); 238 239 const uint16_t g0 = pack565(0x0F,0x1F,0x0F); 240 const uint16_t g1 = pack565(0x17,0x2f,0x17); 241 const uint16_t textureData[4] = { g0, g1, g1, g0 }; 242 glGenTextures(1, &mWormholeTexName); 243 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 244 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 245 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 246 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 247 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 248 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, 249 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, textureData); 250 251 glViewport(0, 0, w, h); 252 glMatrixMode(GL_PROJECTION); 253 glLoadIdentity(); 254 glOrthof(0, w, h, 0, 0, 1); 255 256 mReadyToRunBarrier.open(); 257 258 /* 259 * We're now ready to accept clients... 260 */ 261 262 // start boot animation 263 property_set("ctl.start", "bootanim"); 264 265 return NO_ERROR; 266} 267 268// ---------------------------------------------------------------------------- 269#if 0 270#pragma mark - 271#pragma mark Events Handler 272#endif 273 274void SurfaceFlinger::waitForEvent() 275{ 276 while (true) { 277 nsecs_t timeout = -1; 278 const nsecs_t freezeDisplayTimeout = ms2ns(5000); 279 if (UNLIKELY(isFrozen())) { 280 // wait 5 seconds 281 const nsecs_t now = systemTime(); 282 if (mFreezeDisplayTime == 0) { 283 mFreezeDisplayTime = now; 284 } 285 nsecs_t waitTime = freezeDisplayTimeout - (now - mFreezeDisplayTime); 286 timeout = waitTime>0 ? waitTime : 0; 287 } 288 289 sp<MessageBase> msg = mEventQueue.waitMessage(timeout); 290 291 // see if we timed out 292 if (isFrozen()) { 293 const nsecs_t now = systemTime(); 294 nsecs_t frozenTime = (now - mFreezeDisplayTime); 295 if (frozenTime >= freezeDisplayTimeout) { 296 // we timed out and are still frozen 297 LOGW("timeout expired mFreezeDisplay=%d, mFreezeCount=%d", 298 mFreezeDisplay, mFreezeCount); 299 mFreezeDisplayTime = 0; 300 mFreezeCount = 0; 301 mFreezeDisplay = false; 302 } 303 } 304 305 if (msg != 0) { 306 switch (msg->what) { 307 case MessageQueue::INVALIDATE: 308 // invalidate message, just return to the main loop 309 return; 310 } 311 } 312 } 313} 314 315void SurfaceFlinger::signalEvent() { 316 mEventQueue.invalidate(); 317} 318 319bool SurfaceFlinger::authenticateSurface(const sp<ISurface>& surface) const { 320 Mutex::Autolock _l(mStateLock); 321 sp<IBinder> surfBinder(surface->asBinder()); 322 323 // Check the visible layer list for the ISurface 324 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 325 size_t count = currentLayers.size(); 326 for (size_t i=0 ; i<count ; i++) { 327 const sp<LayerBase>& layer(currentLayers[i]); 328 sp<LayerBaseClient> lbc(layer->getLayerBaseClient()); 329 if (lbc != NULL && lbc->getSurfaceBinder() == surfBinder) { 330 return true; 331 } 332 } 333 334 // Check the layers in the purgatory. This check is here so that if a 335 // Surface gets destroyed before all the clients are done using it, the 336 // error will not be reported as "surface XYZ is not authenticated", but 337 // will instead fail later on when the client tries to use the surface, 338 // which should be reported as "surface XYZ returned an -ENODEV". The 339 // purgatorized layers are no less authentic than the visible ones, so this 340 // should not cause any harm. 341 size_t purgatorySize = mLayerPurgatory.size(); 342 for (size_t i=0 ; i<purgatorySize ; i++) { 343 const sp<LayerBase>& layer(mLayerPurgatory.itemAt(i)); 344 sp<LayerBaseClient> lbc(layer->getLayerBaseClient()); 345 if (lbc != NULL && lbc->getSurfaceBinder() == surfBinder) { 346 return true; 347 } 348 } 349 350 return false; 351} 352 353status_t SurfaceFlinger::postMessageAsync(const sp<MessageBase>& msg, 354 nsecs_t reltime, uint32_t flags) 355{ 356 return mEventQueue.postMessage(msg, reltime, flags); 357} 358 359status_t SurfaceFlinger::postMessageSync(const sp<MessageBase>& msg, 360 nsecs_t reltime, uint32_t flags) 361{ 362 status_t res = mEventQueue.postMessage(msg, reltime, flags); 363 if (res == NO_ERROR) { 364 msg->wait(); 365 } 366 return res; 367} 368 369// ---------------------------------------------------------------------------- 370#if 0 371#pragma mark - 372#pragma mark Main loop 373#endif 374 375bool SurfaceFlinger::threadLoop() 376{ 377 waitForEvent(); 378 379 // call Layer's destructor 380 handleDestroyLayers(); 381 382 // check for transactions 383 if (UNLIKELY(mConsoleSignals)) { 384 handleConsoleEvents(); 385 } 386 387 // if we're in a global transaction, don't do anything. 388 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 389 uint32_t transactionFlags = peekTransactionFlags(mask); 390 if (UNLIKELY(transactionFlags)) { 391 handleTransaction(transactionFlags); 392 } 393 394 // post surfaces (if needed) 395 handlePageFlip(); 396 397 if (UNLIKELY(mHwWorkListDirty)) { 398 // build the h/w work list 399 handleWorkList(); 400 } 401 402 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 403 if (LIKELY(hw.canDraw() && !isFrozen())) { 404 // repaint the framebuffer (if needed) 405 406 const int index = hw.getCurrentBufferIndex(); 407 GraphicLog& logger(GraphicLog::getInstance()); 408 409 logger.log(GraphicLog::SF_REPAINT, index); 410 handleRepaint(); 411 412 // inform the h/w that we're done compositing 413 logger.log(GraphicLog::SF_COMPOSITION_COMPLETE, index); 414 hw.compositionComplete(); 415 416 logger.log(GraphicLog::SF_SWAP_BUFFERS, index); 417 postFramebuffer(); 418 419 logger.log(GraphicLog::SF_REPAINT_DONE, index); 420 } else { 421 // pretend we did the post 422 hw.compositionComplete(); 423 usleep(16667); // 60 fps period 424 } 425 return true; 426} 427 428void SurfaceFlinger::postFramebuffer() 429{ 430 if (!mInvalidRegion.isEmpty()) { 431 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 432 const nsecs_t now = systemTime(); 433 mDebugInSwapBuffers = now; 434 hw.flip(mInvalidRegion); 435 mLastSwapBufferTime = systemTime() - now; 436 mDebugInSwapBuffers = 0; 437 mInvalidRegion.clear(); 438 } 439} 440 441void SurfaceFlinger::handleConsoleEvents() 442{ 443 // something to do with the console 444 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 445 446 int what = android_atomic_and(0, &mConsoleSignals); 447 if (what & eConsoleAcquired) { 448 hw.acquireScreen(); 449 // this is a temporary work-around, eventually this should be called 450 // by the power-manager 451 SurfaceFlinger::turnElectronBeamOn(mElectronBeamAnimationMode); 452 } 453 454 if (mDeferReleaseConsole && hw.isScreenAcquired()) { 455 // We got the release signal before the acquire signal 456 mDeferReleaseConsole = false; 457 hw.releaseScreen(); 458 } 459 460 if (what & eConsoleReleased) { 461 if (hw.isScreenAcquired()) { 462 hw.releaseScreen(); 463 } else { 464 mDeferReleaseConsole = true; 465 } 466 } 467 468 mDirtyRegion.set(hw.bounds()); 469} 470 471void SurfaceFlinger::handleTransaction(uint32_t transactionFlags) 472{ 473 Mutex::Autolock _l(mStateLock); 474 const nsecs_t now = systemTime(); 475 mDebugInTransaction = now; 476 477 // Here we're guaranteed that some transaction flags are set 478 // so we can call handleTransactionLocked() unconditionally. 479 // We call getTransactionFlags(), which will also clear the flags, 480 // with mStateLock held to guarantee that mCurrentState won't change 481 // until the transaction is committed. 482 483 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 484 transactionFlags = getTransactionFlags(mask); 485 handleTransactionLocked(transactionFlags); 486 487 mLastTransactionTime = systemTime() - now; 488 mDebugInTransaction = 0; 489 invalidateHwcGeometry(); 490 // here the transaction has been committed 491} 492 493void SurfaceFlinger::handleTransactionLocked(uint32_t transactionFlags) 494{ 495 const LayerVector& currentLayers(mCurrentState.layersSortedByZ); 496 const size_t count = currentLayers.size(); 497 498 /* 499 * Traversal of the children 500 * (perform the transaction for each of them if needed) 501 */ 502 503 const bool layersNeedTransaction = transactionFlags & eTraversalNeeded; 504 if (layersNeedTransaction) { 505 for (size_t i=0 ; i<count ; i++) { 506 const sp<LayerBase>& layer = currentLayers[i]; 507 uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded); 508 if (!trFlags) continue; 509 510 const uint32_t flags = layer->doTransaction(0); 511 if (flags & Layer::eVisibleRegion) 512 mVisibleRegionsDirty = true; 513 } 514 } 515 516 /* 517 * Perform our own transaction if needed 518 */ 519 520 if (transactionFlags & eTransactionNeeded) { 521 if (mCurrentState.orientation != mDrawingState.orientation) { 522 // the orientation has changed, recompute all visible regions 523 // and invalidate everything. 524 525 const int dpy = 0; 526 const int orientation = mCurrentState.orientation; 527 const uint32_t type = mCurrentState.orientationType; 528 GraphicPlane& plane(graphicPlane(dpy)); 529 plane.setOrientation(orientation); 530 531 // update the shared control block 532 const DisplayHardware& hw(plane.displayHardware()); 533 volatile display_cblk_t* dcblk = mServerCblk->displays + dpy; 534 dcblk->orientation = orientation; 535 dcblk->w = plane.getWidth(); 536 dcblk->h = plane.getHeight(); 537 538 mVisibleRegionsDirty = true; 539 mDirtyRegion.set(hw.bounds()); 540 } 541 542 if (mCurrentState.freezeDisplay != mDrawingState.freezeDisplay) { 543 // freezing or unfreezing the display -> trigger animation if needed 544 mFreezeDisplay = mCurrentState.freezeDisplay; 545 if (mFreezeDisplay) 546 mFreezeDisplayTime = 0; 547 } 548 549 if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) { 550 // layers have been added 551 mVisibleRegionsDirty = true; 552 } 553 554 // some layers might have been removed, so 555 // we need to update the regions they're exposing. 556 if (mLayersRemoved) { 557 mLayersRemoved = false; 558 mVisibleRegionsDirty = true; 559 const LayerVector& previousLayers(mDrawingState.layersSortedByZ); 560 const size_t count = previousLayers.size(); 561 for (size_t i=0 ; i<count ; i++) { 562 const sp<LayerBase>& layer(previousLayers[i]); 563 if (currentLayers.indexOf( layer ) < 0) { 564 // this layer is not visible anymore 565 mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen); 566 } 567 } 568 } 569 } 570 571 commitTransaction(); 572} 573 574void SurfaceFlinger::destroyLayer(LayerBase const* layer) 575{ 576 Mutex::Autolock _l(mDestroyedLayerLock); 577 mDestroyedLayers.add(layer); 578 signalEvent(); 579} 580 581void SurfaceFlinger::handleDestroyLayers() 582{ 583 Vector<LayerBase const *> destroyedLayers; 584 585 { // scope for the lock 586 Mutex::Autolock _l(mDestroyedLayerLock); 587 destroyedLayers = mDestroyedLayers; 588 mDestroyedLayers.clear(); 589 } 590 591 // call destructors without a lock held 592 const size_t count = destroyedLayers.size(); 593 for (size_t i=0 ; i<count ; i++) { 594 //LOGD("destroying %s", destroyedLayers[i]->getName().string()); 595 delete destroyedLayers[i]; 596 } 597} 598 599sp<FreezeLock> SurfaceFlinger::getFreezeLock() const 600{ 601 return new FreezeLock(const_cast<SurfaceFlinger *>(this)); 602} 603 604void SurfaceFlinger::computeVisibleRegions( 605 const LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion) 606{ 607 const GraphicPlane& plane(graphicPlane(0)); 608 const Transform& planeTransform(plane.transform()); 609 const DisplayHardware& hw(plane.displayHardware()); 610 const Region screenRegion(hw.bounds()); 611 612 Region aboveOpaqueLayers; 613 Region aboveCoveredLayers; 614 Region dirty; 615 616 bool secureFrameBuffer = false; 617 618 size_t i = currentLayers.size(); 619 while (i--) { 620 const sp<LayerBase>& layer = currentLayers[i]; 621 layer->validateVisibility(planeTransform); 622 623 // start with the whole surface at its current location 624 const Layer::State& s(layer->drawingState()); 625 626 /* 627 * opaqueRegion: area of a surface that is fully opaque. 628 */ 629 Region opaqueRegion; 630 631 /* 632 * visibleRegion: area of a surface that is visible on screen 633 * and not fully transparent. This is essentially the layer's 634 * footprint minus the opaque regions above it. 635 * Areas covered by a translucent surface are considered visible. 636 */ 637 Region visibleRegion; 638 639 /* 640 * coveredRegion: area of a surface that is covered by all 641 * visible regions above it (which includes the translucent areas). 642 */ 643 Region coveredRegion; 644 645 646 // handle hidden surfaces by setting the visible region to empty 647 if (LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) { 648 const bool translucent = !layer->isOpaque(); 649 const Rect bounds(layer->visibleBounds()); 650 visibleRegion.set(bounds); 651 visibleRegion.andSelf(screenRegion); 652 if (!visibleRegion.isEmpty()) { 653 // Remove the transparent area from the visible region 654 if (translucent) { 655 visibleRegion.subtractSelf(layer->transparentRegionScreen); 656 } 657 658 // compute the opaque region 659 const int32_t layerOrientation = layer->getOrientation(); 660 if (s.alpha==255 && !translucent && 661 ((layerOrientation & Transform::ROT_INVALID) == false)) { 662 // the opaque region is the layer's footprint 663 opaqueRegion = visibleRegion; 664 } 665 } 666 } 667 668 // Clip the covered region to the visible region 669 coveredRegion = aboveCoveredLayers.intersect(visibleRegion); 670 671 // Update aboveCoveredLayers for next (lower) layer 672 aboveCoveredLayers.orSelf(visibleRegion); 673 674 // subtract the opaque region covered by the layers above us 675 visibleRegion.subtractSelf(aboveOpaqueLayers); 676 677 // compute this layer's dirty region 678 if (layer->contentDirty) { 679 // we need to invalidate the whole region 680 dirty = visibleRegion; 681 // as well, as the old visible region 682 dirty.orSelf(layer->visibleRegionScreen); 683 layer->contentDirty = false; 684 } else { 685 /* compute the exposed region: 686 * the exposed region consists of two components: 687 * 1) what's VISIBLE now and was COVERED before 688 * 2) what's EXPOSED now less what was EXPOSED before 689 * 690 * note that (1) is conservative, we start with the whole 691 * visible region but only keep what used to be covered by 692 * something -- which mean it may have been exposed. 693 * 694 * (2) handles areas that were not covered by anything but got 695 * exposed because of a resize. 696 */ 697 const Region newExposed = visibleRegion - coveredRegion; 698 const Region oldVisibleRegion = layer->visibleRegionScreen; 699 const Region oldCoveredRegion = layer->coveredRegionScreen; 700 const Region oldExposed = oldVisibleRegion - oldCoveredRegion; 701 dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed); 702 } 703 dirty.subtractSelf(aboveOpaqueLayers); 704 705 // accumulate to the screen dirty region 706 dirtyRegion.orSelf(dirty); 707 708 // Update aboveOpaqueLayers for next (lower) layer 709 aboveOpaqueLayers.orSelf(opaqueRegion); 710 711 // Store the visible region is screen space 712 layer->setVisibleRegion(visibleRegion); 713 layer->setCoveredRegion(coveredRegion); 714 715 // If a secure layer is partially visible, lock-down the screen! 716 if (layer->isSecure() && !visibleRegion.isEmpty()) { 717 secureFrameBuffer = true; 718 } 719 } 720 721 // invalidate the areas where a layer was removed 722 dirtyRegion.orSelf(mDirtyRegionRemovedLayer); 723 mDirtyRegionRemovedLayer.clear(); 724 725 mSecureFrameBuffer = secureFrameBuffer; 726 opaqueRegion = aboveOpaqueLayers; 727} 728 729 730void SurfaceFlinger::commitTransaction() 731{ 732 mDrawingState = mCurrentState; 733 mResizeTransationPending = false; 734 mTransactionCV.broadcast(); 735} 736 737void SurfaceFlinger::handlePageFlip() 738{ 739 bool visibleRegions = mVisibleRegionsDirty; 740 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 741 visibleRegions |= lockPageFlip(currentLayers); 742 743 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 744 const Region screenRegion(hw.bounds()); 745 if (visibleRegions) { 746 Region opaqueRegion; 747 computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion); 748 749 /* 750 * rebuild the visible layer list 751 */ 752 const size_t count = currentLayers.size(); 753 mVisibleLayersSortedByZ.clear(); 754 mVisibleLayersSortedByZ.setCapacity(count); 755 for (size_t i=0 ; i<count ; i++) { 756 if (!currentLayers[i]->visibleRegionScreen.isEmpty()) 757 mVisibleLayersSortedByZ.add(currentLayers[i]); 758 } 759 760 mWormholeRegion = screenRegion.subtract(opaqueRegion); 761 mVisibleRegionsDirty = false; 762 invalidateHwcGeometry(); 763 } 764 765 unlockPageFlip(currentLayers); 766 mDirtyRegion.andSelf(screenRegion); 767} 768 769void SurfaceFlinger::invalidateHwcGeometry() 770{ 771 mHwWorkListDirty = true; 772} 773 774bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers) 775{ 776 bool recomputeVisibleRegions = false; 777 size_t count = currentLayers.size(); 778 sp<LayerBase> const* layers = currentLayers.array(); 779 for (size_t i=0 ; i<count ; i++) { 780 const sp<LayerBase>& layer(layers[i]); 781 layer->lockPageFlip(recomputeVisibleRegions); 782 } 783 return recomputeVisibleRegions; 784} 785 786void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers) 787{ 788 const GraphicPlane& plane(graphicPlane(0)); 789 const Transform& planeTransform(plane.transform()); 790 size_t count = currentLayers.size(); 791 sp<LayerBase> const* layers = currentLayers.array(); 792 for (size_t i=0 ; i<count ; i++) { 793 const sp<LayerBase>& layer(layers[i]); 794 layer->unlockPageFlip(planeTransform, mDirtyRegion); 795 } 796} 797 798void SurfaceFlinger::handleWorkList() 799{ 800 mHwWorkListDirty = false; 801 HWComposer& hwc(graphicPlane(0).displayHardware().getHwComposer()); 802 if (hwc.initCheck() == NO_ERROR) { 803 const Vector< sp<LayerBase> >& currentLayers(mVisibleLayersSortedByZ); 804 const size_t count = currentLayers.size(); 805 hwc.createWorkList(count); 806 hwc_layer_t* const cur(hwc.getLayers()); 807 for (size_t i=0 ; cur && i<count ; i++) { 808 currentLayers[i]->setGeometry(&cur[i]); 809 if (mDebugDisableHWC) { 810 cur[i].compositionType = HWC_FRAMEBUFFER; 811 cur[i].flags |= HWC_SKIP_LAYER; 812 } 813 } 814 } 815} 816 817void SurfaceFlinger::handleRepaint() 818{ 819 // compute the invalid region 820 mInvalidRegion.orSelf(mDirtyRegion); 821 822 if (UNLIKELY(mDebugRegion)) { 823 debugFlashRegions(); 824 } 825 826 // set the frame buffer 827 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 828 glMatrixMode(GL_MODELVIEW); 829 glLoadIdentity(); 830 831 uint32_t flags = hw.getFlags(); 832 if ((flags & DisplayHardware::SWAP_RECTANGLE) || 833 (flags & DisplayHardware::BUFFER_PRESERVED)) 834 { 835 // we can redraw only what's dirty, but since SWAP_RECTANGLE only 836 // takes a rectangle, we must make sure to update that whole 837 // rectangle in that case 838 if (flags & DisplayHardware::SWAP_RECTANGLE) { 839 // TODO: we really should be able to pass a region to 840 // SWAP_RECTANGLE so that we don't have to redraw all this. 841 mDirtyRegion.set(mInvalidRegion.bounds()); 842 } else { 843 // in the BUFFER_PRESERVED case, obviously, we can update only 844 // what's needed and nothing more. 845 // NOTE: this is NOT a common case, as preserving the backbuffer 846 // is costly and usually involves copying the whole update back. 847 } 848 } else { 849 if (flags & DisplayHardware::PARTIAL_UPDATES) { 850 // We need to redraw the rectangle that will be updated 851 // (pushed to the framebuffer). 852 // This is needed because PARTIAL_UPDATES only takes one 853 // rectangle instead of a region (see DisplayHardware::flip()) 854 mDirtyRegion.set(mInvalidRegion.bounds()); 855 } else { 856 // we need to redraw everything (the whole screen) 857 mDirtyRegion.set(hw.bounds()); 858 mInvalidRegion = mDirtyRegion; 859 } 860 } 861 862 // compose all surfaces 863 composeSurfaces(mDirtyRegion); 864 865 // clear the dirty regions 866 mDirtyRegion.clear(); 867} 868 869void SurfaceFlinger::composeSurfaces(const Region& dirty) 870{ 871 if (UNLIKELY(!mWormholeRegion.isEmpty())) { 872 // should never happen unless the window manager has a bug 873 // draw something... 874 drawWormhole(); 875 } 876 877 status_t err = NO_ERROR; 878 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 879 size_t count = layers.size(); 880 881 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 882 HWComposer& hwc(hw.getHwComposer()); 883 hwc_layer_t* const cur(hwc.getLayers()); 884 885 LOGE_IF(cur && hwc.getNumLayers() != count, 886 "HAL number of layers (%d) doesn't match surfaceflinger (%d)", 887 hwc.getNumLayers(), count); 888 889 // just to be extra-safe, use the smallest count 890 if (hwc.initCheck() == NO_ERROR) { 891 count = count < hwc.getNumLayers() ? count : hwc.getNumLayers(); 892 } 893 894 /* 895 * update the per-frame h/w composer data for each layer 896 * and build the transparent region of the FB 897 */ 898 Region transparent; 899 if (cur) { 900 for (size_t i=0 ; i<count ; i++) { 901 const sp<LayerBase>& layer(layers[i]); 902 layer->setPerFrameData(&cur[i]); 903 } 904 err = hwc.prepare(); 905 LOGE_IF(err, "HWComposer::prepare failed (%s)", strerror(-err)); 906 907 if (err == NO_ERROR) { 908 for (size_t i=0 ; i<count ; i++) { 909 if (cur[i].hints & HWC_HINT_CLEAR_FB) { 910 const sp<LayerBase>& layer(layers[i]); 911 if (layer->isOpaque()) { 912 transparent.orSelf(layer->visibleRegionScreen); 913 } 914 } 915 } 916 917 /* 918 * clear the area of the FB that need to be transparent 919 */ 920 transparent.andSelf(dirty); 921 if (!transparent.isEmpty()) { 922 glClearColor(0,0,0,0); 923 Region::const_iterator it = transparent.begin(); 924 Region::const_iterator const end = transparent.end(); 925 const int32_t height = hw.getHeight(); 926 while (it != end) { 927 const Rect& r(*it++); 928 const GLint sy = height - (r.top + r.height()); 929 glScissor(r.left, sy, r.width(), r.height()); 930 glClear(GL_COLOR_BUFFER_BIT); 931 } 932 } 933 } 934 } 935 936 937 /* 938 * and then, render the layers targeted at the framebuffer 939 */ 940 for (size_t i=0 ; i<count ; i++) { 941 if (cur) { 942 if ((cur[i].compositionType != HWC_FRAMEBUFFER) && 943 !(cur[i].flags & HWC_SKIP_LAYER)) { 944 // skip layers handled by the HAL 945 continue; 946 } 947 } 948 949 const sp<LayerBase>& layer(layers[i]); 950 const Region clip(dirty.intersect(layer->visibleRegionScreen)); 951 if (!clip.isEmpty()) { 952 layer->draw(clip); 953 } 954 } 955} 956 957void SurfaceFlinger::debugFlashRegions() 958{ 959 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 960 const uint32_t flags = hw.getFlags(); 961 962 if (!((flags & DisplayHardware::SWAP_RECTANGLE) || 963 (flags & DisplayHardware::BUFFER_PRESERVED))) { 964 const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ? 965 mDirtyRegion.bounds() : hw.bounds()); 966 composeSurfaces(repaint); 967 } 968 969 glDisable(GL_BLEND); 970 glDisable(GL_DITHER); 971 glDisable(GL_SCISSOR_TEST); 972 973 static int toggle = 0; 974 toggle = 1 - toggle; 975 if (toggle) { 976 glColor4f(1, 0, 1, 1); 977 } else { 978 glColor4f(1, 1, 0, 1); 979 } 980 981 Region::const_iterator it = mDirtyRegion.begin(); 982 Region::const_iterator const end = mDirtyRegion.end(); 983 while (it != end) { 984 const Rect& r = *it++; 985 GLfloat vertices[][2] = { 986 { r.left, r.top }, 987 { r.left, r.bottom }, 988 { r.right, r.bottom }, 989 { r.right, r.top } 990 }; 991 glVertexPointer(2, GL_FLOAT, 0, vertices); 992 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 993 } 994 995 if (mInvalidRegion.isEmpty()) { 996 mDirtyRegion.dump("mDirtyRegion"); 997 mInvalidRegion.dump("mInvalidRegion"); 998 } 999 hw.flip(mInvalidRegion); 1000 1001 if (mDebugRegion > 1) 1002 usleep(mDebugRegion * 1000); 1003 1004 glEnable(GL_SCISSOR_TEST); 1005 //mDirtyRegion.dump("mDirtyRegion"); 1006} 1007 1008void SurfaceFlinger::drawWormhole() const 1009{ 1010 const Region region(mWormholeRegion.intersect(mDirtyRegion)); 1011 if (region.isEmpty()) 1012 return; 1013 1014 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1015 const int32_t width = hw.getWidth(); 1016 const int32_t height = hw.getHeight(); 1017 1018 glDisable(GL_BLEND); 1019 glDisable(GL_DITHER); 1020 1021 if (LIKELY(!mDebugBackground)) { 1022 glClearColor(0,0,0,0); 1023 Region::const_iterator it = region.begin(); 1024 Region::const_iterator const end = region.end(); 1025 while (it != end) { 1026 const Rect& r = *it++; 1027 const GLint sy = height - (r.top + r.height()); 1028 glScissor(r.left, sy, r.width(), r.height()); 1029 glClear(GL_COLOR_BUFFER_BIT); 1030 } 1031 } else { 1032 const GLshort vertices[][2] = { { 0, 0 }, { width, 0 }, 1033 { width, height }, { 0, height } }; 1034 const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } }; 1035 glVertexPointer(2, GL_SHORT, 0, vertices); 1036 glTexCoordPointer(2, GL_SHORT, 0, tcoords); 1037 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1038#if defined(GL_OES_EGL_image_external) 1039 if (GLExtensions::getInstance().haveTextureExternal()) { 1040 glDisable(GL_TEXTURE_EXTERNAL_OES); 1041 } 1042#endif 1043 glEnable(GL_TEXTURE_2D); 1044 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 1045 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1046 glMatrixMode(GL_TEXTURE); 1047 glLoadIdentity(); 1048 glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1); 1049 Region::const_iterator it = region.begin(); 1050 Region::const_iterator const end = region.end(); 1051 while (it != end) { 1052 const Rect& r = *it++; 1053 const GLint sy = height - (r.top + r.height()); 1054 glScissor(r.left, sy, r.width(), r.height()); 1055 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1056 } 1057 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1058 glDisable(GL_TEXTURE_2D); 1059 glLoadIdentity(); 1060 glMatrixMode(GL_MODELVIEW); 1061 } 1062} 1063 1064void SurfaceFlinger::debugShowFPS() const 1065{ 1066 static int mFrameCount; 1067 static int mLastFrameCount = 0; 1068 static nsecs_t mLastFpsTime = 0; 1069 static float mFps = 0; 1070 mFrameCount++; 1071 nsecs_t now = systemTime(); 1072 nsecs_t diff = now - mLastFpsTime; 1073 if (diff > ms2ns(250)) { 1074 mFps = ((mFrameCount - mLastFrameCount) * float(s2ns(1))) / diff; 1075 mLastFpsTime = now; 1076 mLastFrameCount = mFrameCount; 1077 } 1078 // XXX: mFPS has the value we want 1079 } 1080 1081status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer) 1082{ 1083 Mutex::Autolock _l(mStateLock); 1084 addLayer_l(layer); 1085 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1086 return NO_ERROR; 1087} 1088 1089status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer) 1090{ 1091 ssize_t i = mCurrentState.layersSortedByZ.add(layer); 1092 return (i < 0) ? status_t(i) : status_t(NO_ERROR); 1093} 1094 1095ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client, 1096 const sp<LayerBaseClient>& lbc) 1097{ 1098 // attach this layer to the client 1099 size_t name = client->attachLayer(lbc); 1100 1101 Mutex::Autolock _l(mStateLock); 1102 1103 // add this layer to the current state list 1104 addLayer_l(lbc); 1105 1106 return ssize_t(name); 1107} 1108 1109status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer) 1110{ 1111 Mutex::Autolock _l(mStateLock); 1112 status_t err = purgatorizeLayer_l(layer); 1113 if (err == NO_ERROR) 1114 setTransactionFlags(eTransactionNeeded); 1115 return err; 1116} 1117 1118status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase) 1119{ 1120 sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient()); 1121 if (lbc != 0) { 1122 mLayerMap.removeItem( lbc->getSurfaceBinder() ); 1123 } 1124 ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase); 1125 if (index >= 0) { 1126 mLayersRemoved = true; 1127 return NO_ERROR; 1128 } 1129 return status_t(index); 1130} 1131 1132status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase) 1133{ 1134 // First add the layer to the purgatory list, which makes sure it won't 1135 // go away, then remove it from the main list (through a transaction). 1136 ssize_t err = removeLayer_l(layerBase); 1137 if (err >= 0) { 1138 mLayerPurgatory.add(layerBase); 1139 } 1140 1141 layerBase->onRemoved(); 1142 1143 // it's possible that we don't find a layer, because it might 1144 // have been destroyed already -- this is not technically an error 1145 // from the user because there is a race between Client::destroySurface(), 1146 // ~Client() and ~ISurface(). 1147 return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err; 1148} 1149 1150status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer) 1151{ 1152 layer->forceVisibilityTransaction(); 1153 setTransactionFlags(eTraversalNeeded); 1154 return NO_ERROR; 1155} 1156 1157uint32_t SurfaceFlinger::peekTransactionFlags(uint32_t flags) 1158{ 1159 return android_atomic_release_load(&mTransactionFlags); 1160} 1161 1162uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags) 1163{ 1164 return android_atomic_and(~flags, &mTransactionFlags) & flags; 1165} 1166 1167uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags) 1168{ 1169 uint32_t old = android_atomic_or(flags, &mTransactionFlags); 1170 if ((old & flags)==0) { // wake the server up 1171 signalEvent(); 1172 } 1173 return old; 1174} 1175 1176 1177void SurfaceFlinger::setTransactionState(const Vector<ComposerState>& state) { 1178 Mutex::Autolock _l(mStateLock); 1179 1180 uint32_t flags = 0; 1181 const size_t count = state.size(); 1182 for (size_t i=0 ; i<count ; i++) { 1183 const ComposerState& s(state[i]); 1184 sp<Client> client( static_cast<Client *>(s.client.get()) ); 1185 flags |= setClientStateLocked(client, s.state); 1186 } 1187 if (flags) { 1188 setTransactionFlags(flags); 1189 } 1190 1191 signalEvent(); 1192 1193 // if there is a transaction with a resize, wait for it to 1194 // take effect before returning. 1195 while (mResizeTransationPending) { 1196 status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5)); 1197 if (CC_UNLIKELY(err != NO_ERROR)) { 1198 // just in case something goes wrong in SF, return to the 1199 // called after a few seconds. 1200 LOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!"); 1201 mResizeTransationPending = false; 1202 break; 1203 } 1204 } 1205} 1206 1207status_t SurfaceFlinger::freezeDisplay(DisplayID dpy, uint32_t flags) 1208{ 1209 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1210 return BAD_VALUE; 1211 1212 Mutex::Autolock _l(mStateLock); 1213 mCurrentState.freezeDisplay = 1; 1214 setTransactionFlags(eTransactionNeeded); 1215 1216 // flags is intended to communicate some sort of animation behavior 1217 // (for instance fading) 1218 return NO_ERROR; 1219} 1220 1221status_t SurfaceFlinger::unfreezeDisplay(DisplayID dpy, uint32_t flags) 1222{ 1223 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1224 return BAD_VALUE; 1225 1226 Mutex::Autolock _l(mStateLock); 1227 mCurrentState.freezeDisplay = 0; 1228 setTransactionFlags(eTransactionNeeded); 1229 1230 // flags is intended to communicate some sort of animation behavior 1231 // (for instance fading) 1232 return NO_ERROR; 1233} 1234 1235int SurfaceFlinger::setOrientation(DisplayID dpy, 1236 int orientation, uint32_t flags) 1237{ 1238 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1239 return BAD_VALUE; 1240 1241 Mutex::Autolock _l(mStateLock); 1242 if (mCurrentState.orientation != orientation) { 1243 if (uint32_t(orientation)<=eOrientation270 || orientation==42) { 1244 mCurrentState.orientationType = flags; 1245 mCurrentState.orientation = orientation; 1246 setTransactionFlags(eTransactionNeeded); 1247 mTransactionCV.wait(mStateLock); 1248 } else { 1249 orientation = BAD_VALUE; 1250 } 1251 } 1252 return orientation; 1253} 1254 1255sp<ISurface> SurfaceFlinger::createSurface( 1256 ISurfaceComposerClient::surface_data_t* params, 1257 const String8& name, 1258 const sp<Client>& client, 1259 DisplayID d, uint32_t w, uint32_t h, PixelFormat format, 1260 uint32_t flags) 1261{ 1262 sp<LayerBaseClient> layer; 1263 sp<ISurface> surfaceHandle; 1264 1265 if (int32_t(w|h) < 0) { 1266 LOGE("createSurface() failed, w or h is negative (w=%d, h=%d)", 1267 int(w), int(h)); 1268 return surfaceHandle; 1269 } 1270 1271 //LOGD("createSurface for pid %d (%d x %d)", pid, w, h); 1272 sp<Layer> normalLayer; 1273 switch (flags & eFXSurfaceMask) { 1274 case eFXSurfaceNormal: 1275 normalLayer = createNormalSurface(client, d, w, h, flags, format); 1276 layer = normalLayer; 1277 break; 1278 case eFXSurfaceBlur: 1279 // for now we treat Blur as Dim, until we can implement it 1280 // efficiently. 1281 case eFXSurfaceDim: 1282 layer = createDimSurface(client, d, w, h, flags); 1283 break; 1284 } 1285 1286 if (layer != 0) { 1287 layer->initStates(w, h, flags); 1288 layer->setName(name); 1289 ssize_t token = addClientLayer(client, layer); 1290 1291 surfaceHandle = layer->getSurface(); 1292 if (surfaceHandle != 0) { 1293 params->token = token; 1294 params->identity = layer->getIdentity(); 1295 params->width = w; 1296 params->height = h; 1297 params->format = format; 1298 if (normalLayer != 0) { 1299 Mutex::Autolock _l(mStateLock); 1300 mLayerMap.add(layer->getSurfaceBinder(), normalLayer); 1301 } 1302 } 1303 1304 setTransactionFlags(eTransactionNeeded); 1305 } 1306 1307 return surfaceHandle; 1308} 1309 1310sp<Layer> SurfaceFlinger::createNormalSurface( 1311 const sp<Client>& client, DisplayID display, 1312 uint32_t w, uint32_t h, uint32_t flags, 1313 PixelFormat& format) 1314{ 1315 // initialize the surfaces 1316 switch (format) { // TODO: take h/w into account 1317 case PIXEL_FORMAT_TRANSPARENT: 1318 case PIXEL_FORMAT_TRANSLUCENT: 1319 format = PIXEL_FORMAT_RGBA_8888; 1320 break; 1321 case PIXEL_FORMAT_OPAQUE: 1322#ifdef NO_RGBX_8888 1323 format = PIXEL_FORMAT_RGB_565; 1324#else 1325 format = PIXEL_FORMAT_RGBX_8888; 1326#endif 1327 break; 1328 } 1329 1330#ifdef NO_RGBX_8888 1331 if (format == PIXEL_FORMAT_RGBX_8888) 1332 format = PIXEL_FORMAT_RGBA_8888; 1333#endif 1334 1335 sp<Layer> layer = new Layer(this, display, client); 1336 status_t err = layer->setBuffers(w, h, format, flags); 1337 if (LIKELY(err != NO_ERROR)) { 1338 LOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err)); 1339 layer.clear(); 1340 } 1341 return layer; 1342} 1343 1344sp<LayerDim> SurfaceFlinger::createDimSurface( 1345 const sp<Client>& client, DisplayID display, 1346 uint32_t w, uint32_t h, uint32_t flags) 1347{ 1348 sp<LayerDim> layer = new LayerDim(this, display, client); 1349 layer->initStates(w, h, flags); 1350 return layer; 1351} 1352 1353status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid) 1354{ 1355 /* 1356 * called by the window manager, when a surface should be marked for 1357 * destruction. 1358 * 1359 * The surface is removed from the current and drawing lists, but placed 1360 * in the purgatory queue, so it's not destroyed right-away (we need 1361 * to wait for all client's references to go away first). 1362 */ 1363 1364 status_t err = NAME_NOT_FOUND; 1365 Mutex::Autolock _l(mStateLock); 1366 sp<LayerBaseClient> layer = client->getLayerUser(sid); 1367 if (layer != 0) { 1368 err = purgatorizeLayer_l(layer); 1369 if (err == NO_ERROR) { 1370 setTransactionFlags(eTransactionNeeded); 1371 } 1372 } 1373 return err; 1374} 1375 1376status_t SurfaceFlinger::destroySurface(const wp<LayerBaseClient>& layer) 1377{ 1378 // called by ~ISurface() when all references are gone 1379 status_t err = NO_ERROR; 1380 sp<LayerBaseClient> l(layer.promote()); 1381 if (l != NULL) { 1382 Mutex::Autolock _l(mStateLock); 1383 err = removeLayer_l(l); 1384 if (err == NAME_NOT_FOUND) { 1385 // The surface wasn't in the current list, which means it was 1386 // removed already, which means it is in the purgatory, 1387 // and need to be removed from there. 1388 ssize_t idx = mLayerPurgatory.remove(l); 1389 LOGE_IF(idx < 0, 1390 "layer=%p is not in the purgatory list", l.get()); 1391 } 1392 LOGE_IF(err<0 && err != NAME_NOT_FOUND, 1393 "error removing layer=%p (%s)", l.get(), strerror(-err)); 1394 } 1395 return err; 1396} 1397 1398uint32_t SurfaceFlinger::setClientStateLocked( 1399 const sp<Client>& client, 1400 const layer_state_t& s) 1401{ 1402 uint32_t flags = 0; 1403 sp<LayerBaseClient> layer(client->getLayerUser(s.surface)); 1404 if (layer != 0) { 1405 const uint32_t what = s.what; 1406 if (what & ePositionChanged) { 1407 if (layer->setPosition(s.x, s.y)) 1408 flags |= eTraversalNeeded; 1409 } 1410 if (what & eLayerChanged) { 1411 ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer); 1412 if (layer->setLayer(s.z)) { 1413 mCurrentState.layersSortedByZ.removeAt(idx); 1414 mCurrentState.layersSortedByZ.add(layer); 1415 // we need traversal (state changed) 1416 // AND transaction (list changed) 1417 flags |= eTransactionNeeded|eTraversalNeeded; 1418 } 1419 } 1420 if (what & eSizeChanged) { 1421 if (layer->setSize(s.w, s.h)) { 1422 flags |= eTraversalNeeded; 1423 mResizeTransationPending = true; 1424 } 1425 } 1426 if (what & eAlphaChanged) { 1427 if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f))) 1428 flags |= eTraversalNeeded; 1429 } 1430 if (what & eMatrixChanged) { 1431 if (layer->setMatrix(s.matrix)) 1432 flags |= eTraversalNeeded; 1433 } 1434 if (what & eTransparentRegionChanged) { 1435 if (layer->setTransparentRegionHint(s.transparentRegion)) 1436 flags |= eTraversalNeeded; 1437 } 1438 if (what & eVisibilityChanged) { 1439 if (layer->setFlags(s.flags, s.mask)) 1440 flags |= eTraversalNeeded; 1441 } 1442 } 1443 return flags; 1444} 1445 1446void SurfaceFlinger::screenReleased(int dpy) 1447{ 1448 // this may be called by a signal handler, we can't do too much in here 1449 android_atomic_or(eConsoleReleased, &mConsoleSignals); 1450 signalEvent(); 1451} 1452 1453void SurfaceFlinger::screenAcquired(int dpy) 1454{ 1455 // this may be called by a signal handler, we can't do too much in here 1456 android_atomic_or(eConsoleAcquired, &mConsoleSignals); 1457 signalEvent(); 1458} 1459 1460status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args) 1461{ 1462 const size_t SIZE = 4096; 1463 char buffer[SIZE]; 1464 String8 result; 1465 1466 if (!PermissionCache::checkCallingPermission(sDump)) { 1467 snprintf(buffer, SIZE, "Permission Denial: " 1468 "can't dump SurfaceFlinger from pid=%d, uid=%d\n", 1469 IPCThreadState::self()->getCallingPid(), 1470 IPCThreadState::self()->getCallingUid()); 1471 result.append(buffer); 1472 } else { 1473 1474 // figure out if we're stuck somewhere 1475 const nsecs_t now = systemTime(); 1476 const nsecs_t inSwapBuffers(mDebugInSwapBuffers); 1477 const nsecs_t inTransaction(mDebugInTransaction); 1478 nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0; 1479 nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0; 1480 1481 // Try to get the main lock, but don't insist if we can't 1482 // (this would indicate SF is stuck, but we want to be able to 1483 // print something in dumpsys). 1484 int retry = 3; 1485 while (mStateLock.tryLock()<0 && --retry>=0) { 1486 usleep(1000000); 1487 } 1488 const bool locked(retry >= 0); 1489 if (!locked) { 1490 snprintf(buffer, SIZE, 1491 "SurfaceFlinger appears to be unresponsive, " 1492 "dumping anyways (no locks held)\n"); 1493 result.append(buffer); 1494 } 1495 1496 /* 1497 * Dump the visible layer list 1498 */ 1499 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1500 const size_t count = currentLayers.size(); 1501 snprintf(buffer, SIZE, "Visible layers (count = %d)\n", count); 1502 result.append(buffer); 1503 for (size_t i=0 ; i<count ; i++) { 1504 const sp<LayerBase>& layer(currentLayers[i]); 1505 layer->dump(result, buffer, SIZE); 1506 const Layer::State& s(layer->drawingState()); 1507 s.transparentRegion.dump(result, "transparentRegion"); 1508 layer->transparentRegionScreen.dump(result, "transparentRegionScreen"); 1509 layer->visibleRegionScreen.dump(result, "visibleRegionScreen"); 1510 } 1511 1512 /* 1513 * Dump the layers in the purgatory 1514 */ 1515 1516 const size_t purgatorySize = mLayerPurgatory.size(); 1517 snprintf(buffer, SIZE, "Purgatory state (%d entries)\n", purgatorySize); 1518 result.append(buffer); 1519 for (size_t i=0 ; i<purgatorySize ; i++) { 1520 const sp<LayerBase>& layer(mLayerPurgatory.itemAt(i)); 1521 layer->shortDump(result, buffer, SIZE); 1522 } 1523 1524 /* 1525 * Dump SurfaceFlinger global state 1526 */ 1527 1528 snprintf(buffer, SIZE, "SurfaceFlinger global state\n"); 1529 result.append(buffer); 1530 mWormholeRegion.dump(result, "WormholeRegion"); 1531 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1532 snprintf(buffer, SIZE, 1533 " display frozen: %s, freezeCount=%d, orientation=%d, canDraw=%d\n", 1534 mFreezeDisplay?"yes":"no", mFreezeCount, 1535 mCurrentState.orientation, hw.canDraw()); 1536 result.append(buffer); 1537 snprintf(buffer, SIZE, 1538 " last eglSwapBuffers() time: %f us\n" 1539 " last transaction time : %f us\n", 1540 mLastSwapBufferTime/1000.0, mLastTransactionTime/1000.0); 1541 result.append(buffer); 1542 1543 if (inSwapBuffersDuration || !locked) { 1544 snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n", 1545 inSwapBuffersDuration/1000.0); 1546 result.append(buffer); 1547 } 1548 1549 if (inTransactionDuration || !locked) { 1550 snprintf(buffer, SIZE, " transaction time: %f us\n", 1551 inTransactionDuration/1000.0); 1552 result.append(buffer); 1553 } 1554 1555 /* 1556 * Dump HWComposer state 1557 */ 1558 HWComposer& hwc(hw.getHwComposer()); 1559 snprintf(buffer, SIZE, " h/w composer %s and %s\n", 1560 hwc.initCheck()==NO_ERROR ? "present" : "not present", 1561 mDebugDisableHWC ? "disabled" : "enabled"); 1562 result.append(buffer); 1563 hwc.dump(result, buffer, SIZE); 1564 1565 /* 1566 * Dump gralloc state 1567 */ 1568 const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get()); 1569 alloc.dump(result); 1570 hw.dump(result); 1571 1572 if (locked) { 1573 mStateLock.unlock(); 1574 } 1575 } 1576 write(fd, result.string(), result.size()); 1577 return NO_ERROR; 1578} 1579 1580status_t SurfaceFlinger::onTransact( 1581 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1582{ 1583 switch (code) { 1584 case CREATE_CONNECTION: 1585 case SET_TRANSACTION_STATE: 1586 case SET_ORIENTATION: 1587 case FREEZE_DISPLAY: 1588 case UNFREEZE_DISPLAY: 1589 case BOOT_FINISHED: 1590 case TURN_ELECTRON_BEAM_OFF: 1591 case TURN_ELECTRON_BEAM_ON: 1592 { 1593 // codes that require permission check 1594 IPCThreadState* ipc = IPCThreadState::self(); 1595 const int pid = ipc->getCallingPid(); 1596 const int uid = ipc->getCallingUid(); 1597 if ((uid != AID_GRAPHICS) && 1598 !PermissionCache::checkPermission(sAccessSurfaceFlinger, pid, uid)) { 1599 LOGE("Permission Denial: " 1600 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1601 return PERMISSION_DENIED; 1602 } 1603 break; 1604 } 1605 case CAPTURE_SCREEN: 1606 { 1607 // codes that require permission check 1608 IPCThreadState* ipc = IPCThreadState::self(); 1609 const int pid = ipc->getCallingPid(); 1610 const int uid = ipc->getCallingUid(); 1611 if ((uid != AID_GRAPHICS) && 1612 !PermissionCache::checkPermission(sReadFramebuffer, pid, uid)) { 1613 LOGE("Permission Denial: " 1614 "can't read framebuffer pid=%d, uid=%d", pid, uid); 1615 return PERMISSION_DENIED; 1616 } 1617 break; 1618 } 1619 } 1620 1621 status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags); 1622 if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) { 1623 CHECK_INTERFACE(ISurfaceComposer, data, reply); 1624 if (UNLIKELY(!PermissionCache::checkCallingPermission(sHardwareTest))) { 1625 IPCThreadState* ipc = IPCThreadState::self(); 1626 const int pid = ipc->getCallingPid(); 1627 const int uid = ipc->getCallingUid(); 1628 LOGE("Permission Denial: " 1629 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1630 return PERMISSION_DENIED; 1631 } 1632 int n; 1633 switch (code) { 1634 case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE 1635 case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE 1636 return NO_ERROR; 1637 case 1002: // SHOW_UPDATES 1638 n = data.readInt32(); 1639 mDebugRegion = n ? n : (mDebugRegion ? 0 : 1); 1640 return NO_ERROR; 1641 case 1003: // SHOW_BACKGROUND 1642 n = data.readInt32(); 1643 mDebugBackground = n ? 1 : 0; 1644 return NO_ERROR; 1645 case 1008: // toggle use of hw composer 1646 n = data.readInt32(); 1647 mDebugDisableHWC = n ? 1 : 0; 1648 invalidateHwcGeometry(); 1649 // fall-through... 1650 case 1004:{ // repaint everything 1651 Mutex::Autolock _l(mStateLock); 1652 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1653 mDirtyRegion.set(hw.bounds()); // careful that's not thread-safe 1654 signalEvent(); 1655 return NO_ERROR; 1656 } 1657 case 1005:{ // force transaction 1658 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1659 return NO_ERROR; 1660 } 1661 case 1006:{ // enable/disable GraphicLog 1662 int enabled = data.readInt32(); 1663 GraphicLog::getInstance().setEnabled(enabled); 1664 return NO_ERROR; 1665 } 1666 case 1007: // set mFreezeCount 1667 mFreezeCount = data.readInt32(); 1668 mFreezeDisplayTime = 0; 1669 return NO_ERROR; 1670 case 1010: // interrogate. 1671 reply->writeInt32(0); 1672 reply->writeInt32(0); 1673 reply->writeInt32(mDebugRegion); 1674 reply->writeInt32(mDebugBackground); 1675 return NO_ERROR; 1676 case 1013: { 1677 Mutex::Autolock _l(mStateLock); 1678 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1679 reply->writeInt32(hw.getPageFlipCount()); 1680 } 1681 return NO_ERROR; 1682 } 1683 } 1684 return err; 1685} 1686 1687// --------------------------------------------------------------------------- 1688 1689status_t SurfaceFlinger::renderScreenToTextureLocked(DisplayID dpy, 1690 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1691{ 1692 if (!GLExtensions::getInstance().haveFramebufferObject()) 1693 return INVALID_OPERATION; 1694 1695 // get screen geometry 1696 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 1697 const uint32_t hw_w = hw.getWidth(); 1698 const uint32_t hw_h = hw.getHeight(); 1699 GLfloat u = 1; 1700 GLfloat v = 1; 1701 1702 // make sure to clear all GL error flags 1703 while ( glGetError() != GL_NO_ERROR ) ; 1704 1705 // create a FBO 1706 GLuint name, tname; 1707 glGenTextures(1, &tname); 1708 glBindTexture(GL_TEXTURE_2D, tname); 1709 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1710 hw_w, hw_h, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1711 if (glGetError() != GL_NO_ERROR) { 1712 while ( glGetError() != GL_NO_ERROR ) ; 1713 GLint tw = (2 << (31 - clz(hw_w))); 1714 GLint th = (2 << (31 - clz(hw_h))); 1715 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1716 tw, th, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1717 u = GLfloat(hw_w) / tw; 1718 v = GLfloat(hw_h) / th; 1719 } 1720 glGenFramebuffersOES(1, &name); 1721 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 1722 glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, 1723 GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0); 1724 1725 // redraw the screen entirely... 1726 glClearColor(0,0,0,1); 1727 glClear(GL_COLOR_BUFFER_BIT); 1728 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1729 const size_t count = layers.size(); 1730 for (size_t i=0 ; i<count ; ++i) { 1731 const sp<LayerBase>& layer(layers[i]); 1732 layer->drawForSreenShot(); 1733 } 1734 1735 // back to main framebuffer 1736 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1737 glDisable(GL_SCISSOR_TEST); 1738 glDeleteFramebuffersOES(1, &name); 1739 1740 *textureName = tname; 1741 *uOut = u; 1742 *vOut = v; 1743 return NO_ERROR; 1744} 1745 1746// --------------------------------------------------------------------------- 1747 1748status_t SurfaceFlinger::electronBeamOffAnimationImplLocked() 1749{ 1750 status_t result = PERMISSION_DENIED; 1751 1752 if (!GLExtensions::getInstance().haveFramebufferObject()) 1753 return INVALID_OPERATION; 1754 1755 // get screen geometry 1756 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1757 const uint32_t hw_w = hw.getWidth(); 1758 const uint32_t hw_h = hw.getHeight(); 1759 const Region screenBounds(hw.bounds()); 1760 1761 GLfloat u, v; 1762 GLuint tname; 1763 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1764 if (result != NO_ERROR) { 1765 return result; 1766 } 1767 1768 GLfloat vtx[8]; 1769 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1770 glBindTexture(GL_TEXTURE_2D, tname); 1771 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1772 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1773 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1774 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1775 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1776 glVertexPointer(2, GL_FLOAT, 0, vtx); 1777 1778 class s_curve_interpolator { 1779 const float nbFrames, s, v; 1780 public: 1781 s_curve_interpolator(int nbFrames, float s) 1782 : nbFrames(1.0f / (nbFrames-1)), s(s), 1783 v(1.0f + expf(-s + 0.5f*s)) { 1784 } 1785 float operator()(int f) { 1786 const float x = f * nbFrames; 1787 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1788 } 1789 }; 1790 1791 class v_stretch { 1792 const GLfloat hw_w, hw_h; 1793 public: 1794 v_stretch(uint32_t hw_w, uint32_t hw_h) 1795 : hw_w(hw_w), hw_h(hw_h) { 1796 } 1797 void operator()(GLfloat* vtx, float v) { 1798 const GLfloat w = hw_w + (hw_w * v); 1799 const GLfloat h = hw_h - (hw_h * v); 1800 const GLfloat x = (hw_w - w) * 0.5f; 1801 const GLfloat y = (hw_h - h) * 0.5f; 1802 vtx[0] = x; vtx[1] = y + h; 1803 vtx[2] = x; vtx[3] = y; 1804 vtx[4] = x + w; vtx[5] = y; 1805 vtx[6] = x + w; vtx[7] = y + h; 1806 } 1807 }; 1808 1809 class h_stretch { 1810 const GLfloat hw_w, hw_h; 1811 public: 1812 h_stretch(uint32_t hw_w, uint32_t hw_h) 1813 : hw_w(hw_w), hw_h(hw_h) { 1814 } 1815 void operator()(GLfloat* vtx, float v) { 1816 const GLfloat w = hw_w - (hw_w * v); 1817 const GLfloat h = 1.0f; 1818 const GLfloat x = (hw_w - w) * 0.5f; 1819 const GLfloat y = (hw_h - h) * 0.5f; 1820 vtx[0] = x; vtx[1] = y + h; 1821 vtx[2] = x; vtx[3] = y; 1822 vtx[4] = x + w; vtx[5] = y; 1823 vtx[6] = x + w; vtx[7] = y + h; 1824 } 1825 }; 1826 1827 // the full animation is 24 frames 1828 const int nbFrames = 12; 1829 s_curve_interpolator itr(nbFrames, 7.5f); 1830 s_curve_interpolator itg(nbFrames, 8.0f); 1831 s_curve_interpolator itb(nbFrames, 8.5f); 1832 1833 v_stretch vverts(hw_w, hw_h); 1834 glEnable(GL_BLEND); 1835 glBlendFunc(GL_ONE, GL_ONE); 1836 for (int i=0 ; i<nbFrames ; i++) { 1837 float x, y, w, h; 1838 const float vr = itr(i); 1839 const float vg = itg(i); 1840 const float vb = itb(i); 1841 1842 // clear screen 1843 glColorMask(1,1,1,1); 1844 glClear(GL_COLOR_BUFFER_BIT); 1845 glEnable(GL_TEXTURE_2D); 1846 1847 // draw the red plane 1848 vverts(vtx, vr); 1849 glColorMask(1,0,0,1); 1850 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1851 1852 // draw the green plane 1853 vverts(vtx, vg); 1854 glColorMask(0,1,0,1); 1855 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1856 1857 // draw the blue plane 1858 vverts(vtx, vb); 1859 glColorMask(0,0,1,1); 1860 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1861 1862 // draw the white highlight (we use the last vertices) 1863 glDisable(GL_TEXTURE_2D); 1864 glColorMask(1,1,1,1); 1865 glColor4f(vg, vg, vg, 1); 1866 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1867 hw.flip(screenBounds); 1868 } 1869 1870 h_stretch hverts(hw_w, hw_h); 1871 glDisable(GL_BLEND); 1872 glDisable(GL_TEXTURE_2D); 1873 glColorMask(1,1,1,1); 1874 for (int i=0 ; i<nbFrames ; i++) { 1875 const float v = itg(i); 1876 hverts(vtx, v); 1877 glClear(GL_COLOR_BUFFER_BIT); 1878 glColor4f(1-v, 1-v, 1-v, 1); 1879 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1880 hw.flip(screenBounds); 1881 } 1882 1883 glColorMask(1,1,1,1); 1884 glEnable(GL_SCISSOR_TEST); 1885 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1886 glDeleteTextures(1, &tname); 1887 glDisable(GL_TEXTURE_2D); 1888 return NO_ERROR; 1889} 1890 1891status_t SurfaceFlinger::electronBeamOnAnimationImplLocked() 1892{ 1893 status_t result = PERMISSION_DENIED; 1894 1895 if (!GLExtensions::getInstance().haveFramebufferObject()) 1896 return INVALID_OPERATION; 1897 1898 1899 // get screen geometry 1900 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1901 const uint32_t hw_w = hw.getWidth(); 1902 const uint32_t hw_h = hw.getHeight(); 1903 const Region screenBounds(hw.bounds()); 1904 1905 GLfloat u, v; 1906 GLuint tname; 1907 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1908 if (result != NO_ERROR) { 1909 return result; 1910 } 1911 1912 // back to main framebuffer 1913 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1914 glDisable(GL_SCISSOR_TEST); 1915 1916 GLfloat vtx[8]; 1917 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1918 glBindTexture(GL_TEXTURE_2D, tname); 1919 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 1920 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1921 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1922 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1923 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1924 glVertexPointer(2, GL_FLOAT, 0, vtx); 1925 1926 class s_curve_interpolator { 1927 const float nbFrames, s, v; 1928 public: 1929 s_curve_interpolator(int nbFrames, float s) 1930 : nbFrames(1.0f / (nbFrames-1)), s(s), 1931 v(1.0f + expf(-s + 0.5f*s)) { 1932 } 1933 float operator()(int f) { 1934 const float x = f * nbFrames; 1935 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1936 } 1937 }; 1938 1939 class v_stretch { 1940 const GLfloat hw_w, hw_h; 1941 public: 1942 v_stretch(uint32_t hw_w, uint32_t hw_h) 1943 : hw_w(hw_w), hw_h(hw_h) { 1944 } 1945 void operator()(GLfloat* vtx, float v) { 1946 const GLfloat w = hw_w + (hw_w * v); 1947 const GLfloat h = hw_h - (hw_h * v); 1948 const GLfloat x = (hw_w - w) * 0.5f; 1949 const GLfloat y = (hw_h - h) * 0.5f; 1950 vtx[0] = x; vtx[1] = y; 1951 vtx[2] = x; vtx[3] = y + h; 1952 vtx[4] = x + w; vtx[5] = y + h; 1953 vtx[6] = x + w; vtx[7] = y; 1954 } 1955 }; 1956 1957 class h_stretch { 1958 const GLfloat hw_w, hw_h; 1959 public: 1960 h_stretch(uint32_t hw_w, uint32_t hw_h) 1961 : hw_w(hw_w), hw_h(hw_h) { 1962 } 1963 void operator()(GLfloat* vtx, float v) { 1964 const GLfloat w = hw_w - (hw_w * v); 1965 const GLfloat h = 1.0f; 1966 const GLfloat x = (hw_w - w) * 0.5f; 1967 const GLfloat y = (hw_h - h) * 0.5f; 1968 vtx[0] = x; vtx[1] = y; 1969 vtx[2] = x; vtx[3] = y + h; 1970 vtx[4] = x + w; vtx[5] = y + h; 1971 vtx[6] = x + w; vtx[7] = y; 1972 } 1973 }; 1974 1975 // the full animation is 12 frames 1976 int nbFrames = 8; 1977 s_curve_interpolator itr(nbFrames, 7.5f); 1978 s_curve_interpolator itg(nbFrames, 8.0f); 1979 s_curve_interpolator itb(nbFrames, 8.5f); 1980 1981 h_stretch hverts(hw_w, hw_h); 1982 glDisable(GL_BLEND); 1983 glDisable(GL_TEXTURE_2D); 1984 glColorMask(1,1,1,1); 1985 for (int i=nbFrames-1 ; i>=0 ; i--) { 1986 const float v = itg(i); 1987 hverts(vtx, v); 1988 glClear(GL_COLOR_BUFFER_BIT); 1989 glColor4f(1-v, 1-v, 1-v, 1); 1990 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1991 hw.flip(screenBounds); 1992 } 1993 1994 nbFrames = 4; 1995 v_stretch vverts(hw_w, hw_h); 1996 glEnable(GL_BLEND); 1997 glBlendFunc(GL_ONE, GL_ONE); 1998 for (int i=nbFrames-1 ; i>=0 ; i--) { 1999 float x, y, w, h; 2000 const float vr = itr(i); 2001 const float vg = itg(i); 2002 const float vb = itb(i); 2003 2004 // clear screen 2005 glColorMask(1,1,1,1); 2006 glClear(GL_COLOR_BUFFER_BIT); 2007 glEnable(GL_TEXTURE_2D); 2008 2009 // draw the red plane 2010 vverts(vtx, vr); 2011 glColorMask(1,0,0,1); 2012 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2013 2014 // draw the green plane 2015 vverts(vtx, vg); 2016 glColorMask(0,1,0,1); 2017 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2018 2019 // draw the blue plane 2020 vverts(vtx, vb); 2021 glColorMask(0,0,1,1); 2022 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2023 2024 hw.flip(screenBounds); 2025 } 2026 2027 glColorMask(1,1,1,1); 2028 glEnable(GL_SCISSOR_TEST); 2029 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 2030 glDeleteTextures(1, &tname); 2031 glDisable(GL_TEXTURE_2D); 2032 2033 return NO_ERROR; 2034} 2035 2036// --------------------------------------------------------------------------- 2037 2038status_t SurfaceFlinger::turnElectronBeamOffImplLocked(int32_t mode) 2039{ 2040 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2041 if (!hw.canDraw()) { 2042 // we're already off 2043 return NO_ERROR; 2044 } 2045 if (mode & ISurfaceComposer::eElectronBeamAnimationOff) { 2046 electronBeamOffAnimationImplLocked(); 2047 } 2048 2049 // always clear the whole screen at the end of the animation 2050 glClearColor(0,0,0,1); 2051 glDisable(GL_SCISSOR_TEST); 2052 glClear(GL_COLOR_BUFFER_BIT); 2053 glEnable(GL_SCISSOR_TEST); 2054 hw.flip( Region(hw.bounds()) ); 2055 2056 hw.setCanDraw(false); 2057 return NO_ERROR; 2058} 2059 2060status_t SurfaceFlinger::turnElectronBeamOff(int32_t mode) 2061{ 2062 class MessageTurnElectronBeamOff : public MessageBase { 2063 SurfaceFlinger* flinger; 2064 int32_t mode; 2065 status_t result; 2066 public: 2067 MessageTurnElectronBeamOff(SurfaceFlinger* flinger, int32_t mode) 2068 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2069 } 2070 status_t getResult() const { 2071 return result; 2072 } 2073 virtual bool handler() { 2074 Mutex::Autolock _l(flinger->mStateLock); 2075 result = flinger->turnElectronBeamOffImplLocked(mode); 2076 return true; 2077 } 2078 }; 2079 2080 sp<MessageBase> msg = new MessageTurnElectronBeamOff(this, mode); 2081 status_t res = postMessageSync(msg); 2082 if (res == NO_ERROR) { 2083 res = static_cast<MessageTurnElectronBeamOff*>( msg.get() )->getResult(); 2084 2085 // work-around: when the power-manager calls us we activate the 2086 // animation. eventually, the "on" animation will be called 2087 // by the power-manager itself 2088 mElectronBeamAnimationMode = mode; 2089 } 2090 return res; 2091} 2092 2093// --------------------------------------------------------------------------- 2094 2095status_t SurfaceFlinger::turnElectronBeamOnImplLocked(int32_t mode) 2096{ 2097 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2098 if (hw.canDraw()) { 2099 // we're already on 2100 return NO_ERROR; 2101 } 2102 if (mode & ISurfaceComposer::eElectronBeamAnimationOn) { 2103 electronBeamOnAnimationImplLocked(); 2104 } 2105 hw.setCanDraw(true); 2106 2107 // make sure to redraw the whole screen when the animation is done 2108 mDirtyRegion.set(hw.bounds()); 2109 signalEvent(); 2110 2111 return NO_ERROR; 2112} 2113 2114status_t SurfaceFlinger::turnElectronBeamOn(int32_t mode) 2115{ 2116 class MessageTurnElectronBeamOn : public MessageBase { 2117 SurfaceFlinger* flinger; 2118 int32_t mode; 2119 status_t result; 2120 public: 2121 MessageTurnElectronBeamOn(SurfaceFlinger* flinger, int32_t mode) 2122 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2123 } 2124 status_t getResult() const { 2125 return result; 2126 } 2127 virtual bool handler() { 2128 Mutex::Autolock _l(flinger->mStateLock); 2129 result = flinger->turnElectronBeamOnImplLocked(mode); 2130 return true; 2131 } 2132 }; 2133 2134 postMessageAsync( new MessageTurnElectronBeamOn(this, mode) ); 2135 return NO_ERROR; 2136} 2137 2138// --------------------------------------------------------------------------- 2139 2140status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy, 2141 sp<IMemoryHeap>* heap, 2142 uint32_t* w, uint32_t* h, PixelFormat* f, 2143 uint32_t sw, uint32_t sh, 2144 uint32_t minLayerZ, uint32_t maxLayerZ) 2145{ 2146 status_t result = PERMISSION_DENIED; 2147 2148 // only one display supported for now 2149 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2150 return BAD_VALUE; 2151 2152 // make sure none of the layers are protected 2153 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 2154 const size_t count = layers.size(); 2155 for (size_t i=0 ; i<count ; ++i) { 2156 const sp<LayerBase>& layer(layers[i]); 2157 const uint32_t z = layer->drawingState().z; 2158 if (z >= minLayerZ && z <= maxLayerZ) { 2159 if (layer->isProtected()) { 2160 return INVALID_OPERATION; 2161 } 2162 } 2163 } 2164 2165 if (!GLExtensions::getInstance().haveFramebufferObject()) 2166 return INVALID_OPERATION; 2167 2168 // get screen geometry 2169 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 2170 const uint32_t hw_w = hw.getWidth(); 2171 const uint32_t hw_h = hw.getHeight(); 2172 2173 if ((sw > hw_w) || (sh > hw_h)) 2174 return BAD_VALUE; 2175 2176 sw = (!sw) ? hw_w : sw; 2177 sh = (!sh) ? hw_h : sh; 2178 const size_t size = sw * sh * 4; 2179 2180 //LOGD("screenshot: sw=%d, sh=%d, minZ=%d, maxZ=%d", 2181 // sw, sh, minLayerZ, maxLayerZ); 2182 2183 // make sure to clear all GL error flags 2184 while ( glGetError() != GL_NO_ERROR ) ; 2185 2186 // create a FBO 2187 GLuint name, tname; 2188 glGenRenderbuffersOES(1, &tname); 2189 glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname); 2190 glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh); 2191 glGenFramebuffersOES(1, &name); 2192 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 2193 glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, 2194 GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname); 2195 2196 GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES); 2197 2198 if (status == GL_FRAMEBUFFER_COMPLETE_OES) { 2199 2200 // invert everything, b/c glReadPixel() below will invert the FB 2201 glViewport(0, 0, sw, sh); 2202 glScissor(0, 0, sw, sh); 2203 glMatrixMode(GL_PROJECTION); 2204 glPushMatrix(); 2205 glLoadIdentity(); 2206 glOrthof(0, hw_w, 0, hw_h, 0, 1); 2207 glMatrixMode(GL_MODELVIEW); 2208 2209 // redraw the screen entirely... 2210 glClearColor(0,0,0,1); 2211 glClear(GL_COLOR_BUFFER_BIT); 2212 2213 for (size_t i=0 ; i<count ; ++i) { 2214 const sp<LayerBase>& layer(layers[i]); 2215 const uint32_t z = layer->drawingState().z; 2216 if (z >= minLayerZ && z <= maxLayerZ) { 2217 layer->drawForSreenShot(); 2218 } 2219 } 2220 2221 // XXX: this is needed on tegra 2222 glScissor(0, 0, sw, sh); 2223 2224 // check for errors and return screen capture 2225 if (glGetError() != GL_NO_ERROR) { 2226 // error while rendering 2227 result = INVALID_OPERATION; 2228 } else { 2229 // allocate shared memory large enough to hold the 2230 // screen capture 2231 sp<MemoryHeapBase> base( 2232 new MemoryHeapBase(size, 0, "screen-capture") ); 2233 void* const ptr = base->getBase(); 2234 if (ptr) { 2235 // capture the screen with glReadPixels() 2236 glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr); 2237 if (glGetError() == GL_NO_ERROR) { 2238 *heap = base; 2239 *w = sw; 2240 *h = sh; 2241 *f = PIXEL_FORMAT_RGBA_8888; 2242 result = NO_ERROR; 2243 } 2244 } else { 2245 result = NO_MEMORY; 2246 } 2247 } 2248 glEnable(GL_SCISSOR_TEST); 2249 glViewport(0, 0, hw_w, hw_h); 2250 glMatrixMode(GL_PROJECTION); 2251 glPopMatrix(); 2252 glMatrixMode(GL_MODELVIEW); 2253 } else { 2254 result = BAD_VALUE; 2255 } 2256 2257 // release FBO resources 2258 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 2259 glDeleteRenderbuffersOES(1, &tname); 2260 glDeleteFramebuffersOES(1, &name); 2261 2262 hw.compositionComplete(); 2263 2264 // LOGD("screenshot: result = %s", result<0 ? strerror(result) : "OK"); 2265 2266 return result; 2267} 2268 2269 2270status_t SurfaceFlinger::captureScreen(DisplayID dpy, 2271 sp<IMemoryHeap>* heap, 2272 uint32_t* width, uint32_t* height, PixelFormat* format, 2273 uint32_t sw, uint32_t sh, 2274 uint32_t minLayerZ, uint32_t maxLayerZ) 2275{ 2276 // only one display supported for now 2277 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2278 return BAD_VALUE; 2279 2280 if (!GLExtensions::getInstance().haveFramebufferObject()) 2281 return INVALID_OPERATION; 2282 2283 class MessageCaptureScreen : public MessageBase { 2284 SurfaceFlinger* flinger; 2285 DisplayID dpy; 2286 sp<IMemoryHeap>* heap; 2287 uint32_t* w; 2288 uint32_t* h; 2289 PixelFormat* f; 2290 uint32_t sw; 2291 uint32_t sh; 2292 uint32_t minLayerZ; 2293 uint32_t maxLayerZ; 2294 status_t result; 2295 public: 2296 MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy, 2297 sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f, 2298 uint32_t sw, uint32_t sh, 2299 uint32_t minLayerZ, uint32_t maxLayerZ) 2300 : flinger(flinger), dpy(dpy), 2301 heap(heap), w(w), h(h), f(f), sw(sw), sh(sh), 2302 minLayerZ(minLayerZ), maxLayerZ(maxLayerZ), 2303 result(PERMISSION_DENIED) 2304 { 2305 } 2306 status_t getResult() const { 2307 return result; 2308 } 2309 virtual bool handler() { 2310 Mutex::Autolock _l(flinger->mStateLock); 2311 2312 // if we have secure windows, never allow the screen capture 2313 if (flinger->mSecureFrameBuffer) 2314 return true; 2315 2316 result = flinger->captureScreenImplLocked(dpy, 2317 heap, w, h, f, sw, sh, minLayerZ, maxLayerZ); 2318 2319 return true; 2320 } 2321 }; 2322 2323 sp<MessageBase> msg = new MessageCaptureScreen(this, 2324 dpy, heap, width, height, format, sw, sh, minLayerZ, maxLayerZ); 2325 status_t res = postMessageSync(msg); 2326 if (res == NO_ERROR) { 2327 res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult(); 2328 } 2329 return res; 2330} 2331 2332// --------------------------------------------------------------------------- 2333 2334sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const 2335{ 2336 sp<Layer> result; 2337 Mutex::Autolock _l(mStateLock); 2338 result = mLayerMap.valueFor( sur->asBinder() ).promote(); 2339 return result; 2340} 2341 2342// --------------------------------------------------------------------------- 2343 2344Client::Client(const sp<SurfaceFlinger>& flinger) 2345 : mFlinger(flinger), mNameGenerator(1) 2346{ 2347} 2348 2349Client::~Client() 2350{ 2351 const size_t count = mLayers.size(); 2352 for (size_t i=0 ; i<count ; i++) { 2353 sp<LayerBaseClient> layer(mLayers.valueAt(i).promote()); 2354 if (layer != 0) { 2355 mFlinger->removeLayer(layer); 2356 } 2357 } 2358} 2359 2360status_t Client::initCheck() const { 2361 return NO_ERROR; 2362} 2363 2364size_t Client::attachLayer(const sp<LayerBaseClient>& layer) 2365{ 2366 Mutex::Autolock _l(mLock); 2367 size_t name = mNameGenerator++; 2368 mLayers.add(name, layer); 2369 return name; 2370} 2371 2372void Client::detachLayer(const LayerBaseClient* layer) 2373{ 2374 Mutex::Autolock _l(mLock); 2375 // we do a linear search here, because this doesn't happen often 2376 const size_t count = mLayers.size(); 2377 for (size_t i=0 ; i<count ; i++) { 2378 if (mLayers.valueAt(i) == layer) { 2379 mLayers.removeItemsAt(i, 1); 2380 break; 2381 } 2382 } 2383} 2384sp<LayerBaseClient> Client::getLayerUser(int32_t i) const 2385{ 2386 Mutex::Autolock _l(mLock); 2387 sp<LayerBaseClient> lbc; 2388 wp<LayerBaseClient> layer(mLayers.valueFor(i)); 2389 if (layer != 0) { 2390 lbc = layer.promote(); 2391 LOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i)); 2392 } 2393 return lbc; 2394} 2395 2396 2397status_t Client::onTransact( 2398 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 2399{ 2400 // these must be checked 2401 IPCThreadState* ipc = IPCThreadState::self(); 2402 const int pid = ipc->getCallingPid(); 2403 const int uid = ipc->getCallingUid(); 2404 const int self_pid = getpid(); 2405 if (UNLIKELY(pid != self_pid && uid != AID_GRAPHICS && uid != 0)) { 2406 // we're called from a different process, do the real check 2407 if (!PermissionCache::checkCallingPermission(sAccessSurfaceFlinger)) 2408 { 2409 LOGE("Permission Denial: " 2410 "can't openGlobalTransaction pid=%d, uid=%d", pid, uid); 2411 return PERMISSION_DENIED; 2412 } 2413 } 2414 return BnSurfaceComposerClient::onTransact(code, data, reply, flags); 2415} 2416 2417 2418sp<ISurface> Client::createSurface( 2419 ISurfaceComposerClient::surface_data_t* params, 2420 const String8& name, 2421 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2422 uint32_t flags) 2423{ 2424 /* 2425 * createSurface must be called from the GL thread so that it can 2426 * have access to the GL context. 2427 */ 2428 2429 class MessageCreateSurface : public MessageBase { 2430 sp<ISurface> result; 2431 SurfaceFlinger* flinger; 2432 ISurfaceComposerClient::surface_data_t* params; 2433 Client* client; 2434 const String8& name; 2435 DisplayID display; 2436 uint32_t w, h; 2437 PixelFormat format; 2438 uint32_t flags; 2439 public: 2440 MessageCreateSurface(SurfaceFlinger* flinger, 2441 ISurfaceComposerClient::surface_data_t* params, 2442 const String8& name, Client* client, 2443 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2444 uint32_t flags) 2445 : flinger(flinger), params(params), client(client), name(name), 2446 display(display), w(w), h(h), format(format), flags(flags) 2447 { 2448 } 2449 sp<ISurface> getResult() const { return result; } 2450 virtual bool handler() { 2451 result = flinger->createSurface(params, name, client, 2452 display, w, h, format, flags); 2453 return true; 2454 } 2455 }; 2456 2457 sp<MessageBase> msg = new MessageCreateSurface(mFlinger.get(), 2458 params, name, this, display, w, h, format, flags); 2459 mFlinger->postMessageSync(msg); 2460 return static_cast<MessageCreateSurface*>( msg.get() )->getResult(); 2461} 2462status_t Client::destroySurface(SurfaceID sid) { 2463 return mFlinger->removeSurface(this, sid); 2464} 2465 2466// --------------------------------------------------------------------------- 2467 2468GraphicBufferAlloc::GraphicBufferAlloc() {} 2469 2470GraphicBufferAlloc::~GraphicBufferAlloc() {} 2471 2472sp<GraphicBuffer> GraphicBufferAlloc::createGraphicBuffer(uint32_t w, uint32_t h, 2473 PixelFormat format, uint32_t usage, status_t* error) { 2474 sp<GraphicBuffer> graphicBuffer(new GraphicBuffer(w, h, format, usage)); 2475 status_t err = graphicBuffer->initCheck(); 2476 *error = err; 2477 if (err != 0 || graphicBuffer->handle == 0) { 2478 if (err == NO_MEMORY) { 2479 GraphicBuffer::dumpAllocationsToSystemLog(); 2480 } 2481 LOGE("GraphicBufferAlloc::createGraphicBuffer(w=%d, h=%d) " 2482 "failed (%s), handle=%p", 2483 w, h, strerror(-err), graphicBuffer->handle); 2484 return 0; 2485 } 2486 return graphicBuffer; 2487} 2488 2489// --------------------------------------------------------------------------- 2490 2491GraphicPlane::GraphicPlane() 2492 : mHw(0) 2493{ 2494} 2495 2496GraphicPlane::~GraphicPlane() { 2497 delete mHw; 2498} 2499 2500bool GraphicPlane::initialized() const { 2501 return mHw ? true : false; 2502} 2503 2504int GraphicPlane::getWidth() const { 2505 return mWidth; 2506} 2507 2508int GraphicPlane::getHeight() const { 2509 return mHeight; 2510} 2511 2512void GraphicPlane::setDisplayHardware(DisplayHardware *hw) 2513{ 2514 mHw = hw; 2515 2516 // initialize the display orientation transform. 2517 // it's a constant that should come from the display driver. 2518 int displayOrientation = ISurfaceComposer::eOrientationDefault; 2519 char property[PROPERTY_VALUE_MAX]; 2520 if (property_get("ro.sf.hwrotation", property, NULL) > 0) { 2521 //displayOrientation 2522 switch (atoi(property)) { 2523 case 90: 2524 displayOrientation = ISurfaceComposer::eOrientation90; 2525 break; 2526 case 270: 2527 displayOrientation = ISurfaceComposer::eOrientation270; 2528 break; 2529 } 2530 } 2531 2532 const float w = hw->getWidth(); 2533 const float h = hw->getHeight(); 2534 GraphicPlane::orientationToTransfrom(displayOrientation, w, h, 2535 &mDisplayTransform); 2536 if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) { 2537 mDisplayWidth = h; 2538 mDisplayHeight = w; 2539 } else { 2540 mDisplayWidth = w; 2541 mDisplayHeight = h; 2542 } 2543 2544 setOrientation(ISurfaceComposer::eOrientationDefault); 2545} 2546 2547status_t GraphicPlane::orientationToTransfrom( 2548 int orientation, int w, int h, Transform* tr) 2549{ 2550 uint32_t flags = 0; 2551 switch (orientation) { 2552 case ISurfaceComposer::eOrientationDefault: 2553 flags = Transform::ROT_0; 2554 break; 2555 case ISurfaceComposer::eOrientation90: 2556 flags = Transform::ROT_90; 2557 break; 2558 case ISurfaceComposer::eOrientation180: 2559 flags = Transform::ROT_180; 2560 break; 2561 case ISurfaceComposer::eOrientation270: 2562 flags = Transform::ROT_270; 2563 break; 2564 default: 2565 return BAD_VALUE; 2566 } 2567 tr->set(flags, w, h); 2568 return NO_ERROR; 2569} 2570 2571status_t GraphicPlane::setOrientation(int orientation) 2572{ 2573 // If the rotation can be handled in hardware, this is where 2574 // the magic should happen. 2575 2576 const DisplayHardware& hw(displayHardware()); 2577 const float w = mDisplayWidth; 2578 const float h = mDisplayHeight; 2579 mWidth = int(w); 2580 mHeight = int(h); 2581 2582 Transform orientationTransform; 2583 GraphicPlane::orientationToTransfrom(orientation, w, h, 2584 &orientationTransform); 2585 if (orientation & ISurfaceComposer::eOrientationSwapMask) { 2586 mWidth = int(h); 2587 mHeight = int(w); 2588 } 2589 2590 mOrientation = orientation; 2591 mGlobalTransform = mDisplayTransform * orientationTransform; 2592 return NO_ERROR; 2593} 2594 2595const DisplayHardware& GraphicPlane::displayHardware() const { 2596 return *mHw; 2597} 2598 2599DisplayHardware& GraphicPlane::editDisplayHardware() { 2600 return *mHw; 2601} 2602 2603const Transform& GraphicPlane::transform() const { 2604 return mGlobalTransform; 2605} 2606 2607EGLDisplay GraphicPlane::getEGLDisplay() const { 2608 return mHw->getEGLDisplay(); 2609} 2610 2611// --------------------------------------------------------------------------- 2612 2613}; // namespace android 2614