SurfaceFlinger.cpp revision c9ca7011501cb8730ce4e6e527cb402adb7a0178
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 <gui/IDisplayEventConnection.h> 38 39#include <utils/String8.h> 40#include <utils/String16.h> 41#include <utils/StopWatch.h> 42 43#include <ui/GraphicBufferAllocator.h> 44#include <ui/PixelFormat.h> 45 46#include <pixelflinger/pixelflinger.h> 47#include <GLES/gl.h> 48 49#include "clz.h" 50#include "DisplayEventConnection.h" 51#include "EventThread.h" 52#include "GLExtensions.h" 53#include "DdmConnection.h" 54#include "Layer.h" 55#include "LayerDim.h" 56#include "LayerScreenshot.h" 57#include "SurfaceFlinger.h" 58 59#include "DisplayHardware/DisplayHardware.h" 60#include "DisplayHardware/HWComposer.h" 61 62#include <private/android_filesystem_config.h> 63#include <private/surfaceflinger/SharedBufferStack.h> 64 65#define EGL_VERSION_HW_ANDROID 0x3143 66 67#define DISPLAY_COUNT 1 68 69namespace android { 70// --------------------------------------------------------------------------- 71 72const String16 sHardwareTest("android.permission.HARDWARE_TEST"); 73const String16 sAccessSurfaceFlinger("android.permission.ACCESS_SURFACE_FLINGER"); 74const String16 sReadFramebuffer("android.permission.READ_FRAME_BUFFER"); 75const String16 sDump("android.permission.DUMP"); 76 77// --------------------------------------------------------------------------- 78 79SurfaceFlinger::SurfaceFlinger() 80 : BnSurfaceComposer(), Thread(false), 81 mTransactionFlags(0), 82 mTransationPending(false), 83 mLayersRemoved(false), 84 mBootTime(systemTime()), 85 mVisibleRegionsDirty(false), 86 mHwWorkListDirty(false), 87 mElectronBeamAnimationMode(0), 88 mDebugRegion(0), 89 mDebugBackground(0), 90 mDebugDDMS(0), 91 mDebugDisableHWC(0), 92 mDebugDisableTransformHint(0), 93 mDebugInSwapBuffers(0), 94 mLastSwapBufferTime(0), 95 mDebugInTransaction(0), 96 mLastTransactionTime(0), 97 mBootFinished(false), 98 mConsoleSignals(0), 99 mSecureFrameBuffer(0) 100{ 101 init(); 102} 103 104void SurfaceFlinger::init() 105{ 106 ALOGI("SurfaceFlinger is starting"); 107 108 // debugging stuff... 109 char value[PROPERTY_VALUE_MAX]; 110 111 property_get("debug.sf.showupdates", value, "0"); 112 mDebugRegion = atoi(value); 113 114 property_get("debug.sf.showbackground", value, "0"); 115 mDebugBackground = atoi(value); 116 117 property_get("debug.sf.ddms", value, "0"); 118 mDebugDDMS = atoi(value); 119 if (mDebugDDMS) { 120 DdmConnection::start(getServiceName()); 121 } 122 123 ALOGI_IF(mDebugRegion, "showupdates enabled"); 124 ALOGI_IF(mDebugBackground, "showbackground enabled"); 125 ALOGI_IF(mDebugDDMS, "DDMS debugging enabled"); 126} 127 128void SurfaceFlinger::onFirstRef() 129{ 130 mEventQueue.init(this); 131 132 run("SurfaceFlinger", PRIORITY_URGENT_DISPLAY); 133 134 // Wait for the main thread to be done with its initialization 135 mReadyToRunBarrier.wait(); 136} 137 138 139SurfaceFlinger::~SurfaceFlinger() 140{ 141 glDeleteTextures(1, &mWormholeTexName); 142} 143 144void SurfaceFlinger::binderDied(const wp<IBinder>& who) 145{ 146 // the window manager died on us. prepare its eulogy. 147 148 // reset screen orientation 149 Vector<ComposerState> state; 150 setTransactionState(state, eOrientationDefault, 0); 151 152 // restart the boot-animation 153 property_set("ctl.start", "bootanim"); 154} 155 156sp<IMemoryHeap> SurfaceFlinger::getCblk() const 157{ 158 return mServerHeap; 159} 160 161sp<ISurfaceComposerClient> SurfaceFlinger::createConnection() 162{ 163 sp<ISurfaceComposerClient> bclient; 164 sp<Client> client(new Client(this)); 165 status_t err = client->initCheck(); 166 if (err == NO_ERROR) { 167 bclient = client; 168 } 169 return bclient; 170} 171 172sp<IGraphicBufferAlloc> SurfaceFlinger::createGraphicBufferAlloc() 173{ 174 sp<GraphicBufferAlloc> gba(new GraphicBufferAlloc()); 175 return gba; 176} 177 178const GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) const 179{ 180 ALOGE_IF(uint32_t(dpy) >= DISPLAY_COUNT, "Invalid DisplayID %d", dpy); 181 const GraphicPlane& plane(mGraphicPlanes[dpy]); 182 return plane; 183} 184 185GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) 186{ 187 return const_cast<GraphicPlane&>( 188 const_cast<SurfaceFlinger const *>(this)->graphicPlane(dpy)); 189} 190 191void SurfaceFlinger::bootFinished() 192{ 193 const nsecs_t now = systemTime(); 194 const nsecs_t duration = now - mBootTime; 195 ALOGI("Boot is finished (%ld ms)", long(ns2ms(duration)) ); 196 mBootFinished = true; 197 198 // wait patiently for the window manager death 199 const String16 name("window"); 200 sp<IBinder> window(defaultServiceManager()->getService(name)); 201 if (window != 0) { 202 window->linkToDeath(this); 203 } 204 205 // stop boot animation 206 property_set("ctl.stop", "bootanim"); 207} 208 209static inline uint16_t pack565(int r, int g, int b) { 210 return (r<<11)|(g<<5)|b; 211} 212 213status_t SurfaceFlinger::readyToRun() 214{ 215 ALOGI( "SurfaceFlinger's main thread ready to run. " 216 "Initializing graphics H/W..."); 217 218 // we only support one display currently 219 int dpy = 0; 220 221 { 222 // initialize the main display 223 GraphicPlane& plane(graphicPlane(dpy)); 224 DisplayHardware* const hw = new DisplayHardware(this, dpy); 225 plane.setDisplayHardware(hw); 226 } 227 228 // create the shared control-block 229 mServerHeap = new MemoryHeapBase(4096, 230 MemoryHeapBase::READ_ONLY, "SurfaceFlinger read-only heap"); 231 ALOGE_IF(mServerHeap==0, "can't create shared memory dealer"); 232 233 mServerCblk = static_cast<surface_flinger_cblk_t*>(mServerHeap->getBase()); 234 ALOGE_IF(mServerCblk==0, "can't get to shared control block's address"); 235 236 new(mServerCblk) surface_flinger_cblk_t; 237 238 // initialize primary screen 239 // (other display should be initialized in the same manner, but 240 // asynchronously, as they could come and go. None of this is supported 241 // yet). 242 const GraphicPlane& plane(graphicPlane(dpy)); 243 const DisplayHardware& hw = plane.displayHardware(); 244 const uint32_t w = hw.getWidth(); 245 const uint32_t h = hw.getHeight(); 246 const uint32_t f = hw.getFormat(); 247 hw.makeCurrent(); 248 249 // initialize the shared control block 250 mServerCblk->connected |= 1<<dpy; 251 display_cblk_t* dcblk = mServerCblk->displays + dpy; 252 memset(dcblk, 0, sizeof(display_cblk_t)); 253 dcblk->w = plane.getWidth(); 254 dcblk->h = plane.getHeight(); 255 dcblk->format = f; 256 dcblk->orientation = ISurfaceComposer::eOrientationDefault; 257 dcblk->xdpi = hw.getDpiX(); 258 dcblk->ydpi = hw.getDpiY(); 259 dcblk->fps = hw.getRefreshRate(); 260 dcblk->density = hw.getDensity(); 261 262 // Initialize OpenGL|ES 263 glPixelStorei(GL_UNPACK_ALIGNMENT, 4); 264 glPixelStorei(GL_PACK_ALIGNMENT, 4); 265 glEnableClientState(GL_VERTEX_ARRAY); 266 glEnable(GL_SCISSOR_TEST); 267 glShadeModel(GL_FLAT); 268 glDisable(GL_DITHER); 269 glDisable(GL_CULL_FACE); 270 271 const uint16_t g0 = pack565(0x0F,0x1F,0x0F); 272 const uint16_t g1 = pack565(0x17,0x2f,0x17); 273 const uint16_t wormholeTexData[4] = { g0, g1, g1, g0 }; 274 glGenTextures(1, &mWormholeTexName); 275 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 276 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 277 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 278 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 279 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 280 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, 281 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, wormholeTexData); 282 283 const uint16_t protTexData[] = { pack565(0x03, 0x03, 0x03) }; 284 glGenTextures(1, &mProtectedTexName); 285 glBindTexture(GL_TEXTURE_2D, mProtectedTexName); 286 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 287 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 288 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 289 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 290 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1, 1, 0, 291 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, protTexData); 292 293 glViewport(0, 0, w, h); 294 glMatrixMode(GL_PROJECTION); 295 glLoadIdentity(); 296 // put the origin in the left-bottom corner 297 glOrthof(0, w, 0, h, 0, 1); // l=0, r=w ; b=0, t=h 298 299 300 // start the EventThread 301 mEventThread = new EventThread(this); 302 mEventQueue.setEventThread(mEventThread); 303 304 /* 305 * We're now ready to accept clients... 306 */ 307 308 mReadyToRunBarrier.open(); 309 310 // start boot animation 311 property_set("ctl.start", "bootanim"); 312 313 return NO_ERROR; 314} 315 316// ---------------------------------------------------------------------------- 317 318bool SurfaceFlinger::authenticateSurfaceTexture( 319 const sp<ISurfaceTexture>& surfaceTexture) const { 320 Mutex::Autolock _l(mStateLock); 321 sp<IBinder> surfaceTextureBinder(surfaceTexture->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) { 330 wp<IBinder> lbcBinder = lbc->getSurfaceTextureBinder(); 331 if (lbcBinder == surfaceTextureBinder) { 332 return true; 333 } 334 } 335 } 336 337 // Check the layers in the purgatory. This check is here so that if a 338 // SurfaceTexture gets destroyed before all the clients are done using it, 339 // the error will not be reported as "surface XYZ is not authenticated", but 340 // will instead fail later on when the client tries to use the surface, 341 // which should be reported as "surface XYZ returned an -ENODEV". The 342 // purgatorized layers are no less authentic than the visible ones, so this 343 // should not cause any harm. 344 size_t purgatorySize = mLayerPurgatory.size(); 345 for (size_t i=0 ; i<purgatorySize ; i++) { 346 const sp<LayerBase>& layer(mLayerPurgatory.itemAt(i)); 347 sp<LayerBaseClient> lbc(layer->getLayerBaseClient()); 348 if (lbc != NULL) { 349 wp<IBinder> lbcBinder = lbc->getSurfaceTextureBinder(); 350 if (lbcBinder == surfaceTextureBinder) { 351 return true; 352 } 353 } 354 } 355 356 return false; 357} 358 359// ---------------------------------------------------------------------------- 360 361sp<IDisplayEventConnection> SurfaceFlinger::createDisplayEventConnection() { 362 return mEventThread->createEventConnection(); 363} 364 365// ---------------------------------------------------------------------------- 366 367void SurfaceFlinger::waitForEvent() { 368 mEventQueue.waitMessage(); 369} 370 371void SurfaceFlinger::signalTransaction() { 372 mEventQueue.invalidate(); 373} 374 375void SurfaceFlinger::signalLayerUpdate() { 376 mEventQueue.invalidate(); 377} 378 379void SurfaceFlinger::signalRefresh() { 380 mEventQueue.refresh(); 381} 382 383status_t SurfaceFlinger::postMessageAsync(const sp<MessageBase>& msg, 384 nsecs_t reltime, uint32_t flags) { 385 return mEventQueue.postMessage(msg, reltime); 386} 387 388status_t SurfaceFlinger::postMessageSync(const sp<MessageBase>& msg, 389 nsecs_t reltime, uint32_t flags) { 390 status_t res = mEventQueue.postMessage(msg, reltime); 391 if (res == NO_ERROR) { 392 msg->wait(); 393 } 394 return res; 395} 396 397bool SurfaceFlinger::threadLoop() 398{ 399 waitForEvent(); 400 return true; 401} 402 403void SurfaceFlinger::onMessageReceived(int32_t what) 404{ 405 switch (what) { 406 case MessageQueue::INVALIDATE: { 407 // check for transactions 408 if (CC_UNLIKELY(mConsoleSignals)) { 409 handleConsoleEvents(); 410 } 411 412 // if we're in a global transaction, don't do anything. 413 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 414 uint32_t transactionFlags = peekTransactionFlags(mask); 415 if (CC_UNLIKELY(transactionFlags)) { 416 handleTransaction(transactionFlags); 417 } 418 419 // post surfaces (if needed) 420 handlePageFlip(); 421 422 if (!mDirtyRegion.isEmpty()) { 423 signalRefresh(); 424 } 425 } break; 426 427 case MessageQueue::REFRESH: { 428 // NOTE: it is mandatory to call hw.compositionComplete() 429 // after handleRefresh() 430 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 431 handleRefresh(); 432 433 if (!mDirtyRegion.isEmpty()) { 434 if (CC_UNLIKELY(mHwWorkListDirty)) { 435 // build the h/w work list 436 handleWorkList(); 437 } 438 if (CC_LIKELY(hw.canDraw())) { 439 // repaint the framebuffer (if needed) 440 handleRepaint(); 441 // inform the h/w that we're done compositing 442 hw.compositionComplete(); 443 postFramebuffer(); 444 } else { 445 // pretend we did the post 446 hw.compositionComplete(); 447 } 448 } else { 449 hw.compositionComplete(); 450 } 451 } break; 452 } 453} 454 455void SurfaceFlinger::postFramebuffer() 456{ 457 // this should never happen. we do the flip anyways so we don't 458 // risk to cause a deadlock with hwc 459 ALOGW_IF(mSwapRegion.isEmpty(), "mSwapRegion is empty"); 460 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 461 const nsecs_t now = systemTime(); 462 mDebugInSwapBuffers = now; 463 hw.flip(mSwapRegion); 464 465 size_t numLayers = mVisibleLayersSortedByZ.size(); 466 for (size_t i = 0; i < numLayers; i++) { 467 mVisibleLayersSortedByZ[i]->onLayerDisplayed(); 468 } 469 470 mLastSwapBufferTime = systemTime() - now; 471 mDebugInSwapBuffers = 0; 472 mSwapRegion.clear(); 473} 474 475void SurfaceFlinger::handleConsoleEvents() 476{ 477 // something to do with the console 478 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 479 480 int what = android_atomic_and(0, &mConsoleSignals); 481 if (what & eConsoleAcquired) { 482 hw.acquireScreen(); 483 // this is a temporary work-around, eventually this should be called 484 // by the power-manager 485 SurfaceFlinger::turnElectronBeamOn(mElectronBeamAnimationMode); 486 } 487 488 if (what & eConsoleReleased) { 489 if (hw.isScreenAcquired()) { 490 hw.releaseScreen(); 491 } 492 } 493 494 mDirtyRegion.set(hw.bounds()); 495} 496 497void SurfaceFlinger::handleTransaction(uint32_t transactionFlags) 498{ 499 Mutex::Autolock _l(mStateLock); 500 const nsecs_t now = systemTime(); 501 mDebugInTransaction = now; 502 503 // Here we're guaranteed that some transaction flags are set 504 // so we can call handleTransactionLocked() unconditionally. 505 // We call getTransactionFlags(), which will also clear the flags, 506 // with mStateLock held to guarantee that mCurrentState won't change 507 // until the transaction is committed. 508 509 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 510 transactionFlags = getTransactionFlags(mask); 511 handleTransactionLocked(transactionFlags); 512 513 mLastTransactionTime = systemTime() - now; 514 mDebugInTransaction = 0; 515 invalidateHwcGeometry(); 516 // here the transaction has been committed 517} 518 519void SurfaceFlinger::handleTransactionLocked(uint32_t transactionFlags) 520{ 521 const LayerVector& currentLayers(mCurrentState.layersSortedByZ); 522 const size_t count = currentLayers.size(); 523 524 /* 525 * Traversal of the children 526 * (perform the transaction for each of them if needed) 527 */ 528 529 const bool layersNeedTransaction = transactionFlags & eTraversalNeeded; 530 if (layersNeedTransaction) { 531 for (size_t i=0 ; i<count ; i++) { 532 const sp<LayerBase>& layer = currentLayers[i]; 533 uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded); 534 if (!trFlags) continue; 535 536 const uint32_t flags = layer->doTransaction(0); 537 if (flags & Layer::eVisibleRegion) 538 mVisibleRegionsDirty = true; 539 } 540 } 541 542 /* 543 * Perform our own transaction if needed 544 */ 545 546 if (transactionFlags & eTransactionNeeded) { 547 if (mCurrentState.orientation != mDrawingState.orientation) { 548 // the orientation has changed, recompute all visible regions 549 // and invalidate everything. 550 551 const int dpy = 0; 552 const int orientation = mCurrentState.orientation; 553 // Currently unused: const uint32_t flags = mCurrentState.orientationFlags; 554 GraphicPlane& plane(graphicPlane(dpy)); 555 plane.setOrientation(orientation); 556 557 // update the shared control block 558 const DisplayHardware& hw(plane.displayHardware()); 559 volatile display_cblk_t* dcblk = mServerCblk->displays + dpy; 560 dcblk->orientation = orientation; 561 dcblk->w = plane.getWidth(); 562 dcblk->h = plane.getHeight(); 563 564 mVisibleRegionsDirty = true; 565 mDirtyRegion.set(hw.bounds()); 566 } 567 568 if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) { 569 // layers have been added 570 mVisibleRegionsDirty = true; 571 } 572 573 // some layers might have been removed, so 574 // we need to update the regions they're exposing. 575 if (mLayersRemoved) { 576 mLayersRemoved = false; 577 mVisibleRegionsDirty = true; 578 const LayerVector& previousLayers(mDrawingState.layersSortedByZ); 579 const size_t count = previousLayers.size(); 580 for (size_t i=0 ; i<count ; i++) { 581 const sp<LayerBase>& layer(previousLayers[i]); 582 if (currentLayers.indexOf( layer ) < 0) { 583 // this layer is not visible anymore 584 mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen); 585 } 586 } 587 } 588 } 589 590 commitTransaction(); 591} 592 593void SurfaceFlinger::computeVisibleRegions( 594 const LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion) 595{ 596 const GraphicPlane& plane(graphicPlane(0)); 597 const Transform& planeTransform(plane.transform()); 598 const DisplayHardware& hw(plane.displayHardware()); 599 const Region screenRegion(hw.bounds()); 600 601 Region aboveOpaqueLayers; 602 Region aboveCoveredLayers; 603 Region dirty; 604 605 bool secureFrameBuffer = false; 606 607 size_t i = currentLayers.size(); 608 while (i--) { 609 const sp<LayerBase>& layer = currentLayers[i]; 610 layer->validateVisibility(planeTransform); 611 612 // start with the whole surface at its current location 613 const Layer::State& s(layer->drawingState()); 614 615 /* 616 * opaqueRegion: area of a surface that is fully opaque. 617 */ 618 Region opaqueRegion; 619 620 /* 621 * visibleRegion: area of a surface that is visible on screen 622 * and not fully transparent. This is essentially the layer's 623 * footprint minus the opaque regions above it. 624 * Areas covered by a translucent surface are considered visible. 625 */ 626 Region visibleRegion; 627 628 /* 629 * coveredRegion: area of a surface that is covered by all 630 * visible regions above it (which includes the translucent areas). 631 */ 632 Region coveredRegion; 633 634 635 // handle hidden surfaces by setting the visible region to empty 636 if (CC_LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) { 637 const bool translucent = !layer->isOpaque(); 638 const Rect bounds(layer->visibleBounds()); 639 visibleRegion.set(bounds); 640 visibleRegion.andSelf(screenRegion); 641 if (!visibleRegion.isEmpty()) { 642 // Remove the transparent area from the visible region 643 if (translucent) { 644 visibleRegion.subtractSelf(layer->transparentRegionScreen); 645 } 646 647 // compute the opaque region 648 const int32_t layerOrientation = layer->getOrientation(); 649 if (s.alpha==255 && !translucent && 650 ((layerOrientation & Transform::ROT_INVALID) == false)) { 651 // the opaque region is the layer's footprint 652 opaqueRegion = visibleRegion; 653 } 654 } 655 } 656 657 // Clip the covered region to the visible region 658 coveredRegion = aboveCoveredLayers.intersect(visibleRegion); 659 660 // Update aboveCoveredLayers for next (lower) layer 661 aboveCoveredLayers.orSelf(visibleRegion); 662 663 // subtract the opaque region covered by the layers above us 664 visibleRegion.subtractSelf(aboveOpaqueLayers); 665 666 // compute this layer's dirty region 667 if (layer->contentDirty) { 668 // we need to invalidate the whole region 669 dirty = visibleRegion; 670 // as well, as the old visible region 671 dirty.orSelf(layer->visibleRegionScreen); 672 layer->contentDirty = false; 673 } else { 674 /* compute the exposed region: 675 * the exposed region consists of two components: 676 * 1) what's VISIBLE now and was COVERED before 677 * 2) what's EXPOSED now less what was EXPOSED before 678 * 679 * note that (1) is conservative, we start with the whole 680 * visible region but only keep what used to be covered by 681 * something -- which mean it may have been exposed. 682 * 683 * (2) handles areas that were not covered by anything but got 684 * exposed because of a resize. 685 */ 686 const Region newExposed = visibleRegion - coveredRegion; 687 const Region oldVisibleRegion = layer->visibleRegionScreen; 688 const Region oldCoveredRegion = layer->coveredRegionScreen; 689 const Region oldExposed = oldVisibleRegion - oldCoveredRegion; 690 dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed); 691 } 692 dirty.subtractSelf(aboveOpaqueLayers); 693 694 // accumulate to the screen dirty region 695 dirtyRegion.orSelf(dirty); 696 697 // Update aboveOpaqueLayers for next (lower) layer 698 aboveOpaqueLayers.orSelf(opaqueRegion); 699 700 // Store the visible region is screen space 701 layer->setVisibleRegion(visibleRegion); 702 layer->setCoveredRegion(coveredRegion); 703 704 // If a secure layer is partially visible, lock-down the screen! 705 if (layer->isSecure() && !visibleRegion.isEmpty()) { 706 secureFrameBuffer = true; 707 } 708 } 709 710 // invalidate the areas where a layer was removed 711 dirtyRegion.orSelf(mDirtyRegionRemovedLayer); 712 mDirtyRegionRemovedLayer.clear(); 713 714 mSecureFrameBuffer = secureFrameBuffer; 715 opaqueRegion = aboveOpaqueLayers; 716} 717 718 719void SurfaceFlinger::commitTransaction() 720{ 721 if (!mLayersPendingRemoval.isEmpty()) { 722 // Notify removed layers now that they can't be drawn from 723 for (size_t i = 0; i < mLayersPendingRemoval.size(); i++) { 724 mLayersPendingRemoval[i]->onRemoved(); 725 } 726 mLayersPendingRemoval.clear(); 727 } 728 729 mDrawingState = mCurrentState; 730 mTransationPending = false; 731 mTransactionCV.broadcast(); 732} 733 734void SurfaceFlinger::handlePageFlip() 735{ 736 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 737 const Region screenRegion(hw.bounds()); 738 739 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 740 const bool visibleRegions = lockPageFlip(currentLayers); 741 742 if (visibleRegions || mVisibleRegionsDirty) { 743 Region opaqueRegion; 744 computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion); 745 746 /* 747 * rebuild the visible layer list 748 */ 749 const size_t count = currentLayers.size(); 750 mVisibleLayersSortedByZ.clear(); 751 mVisibleLayersSortedByZ.setCapacity(count); 752 for (size_t i=0 ; i<count ; i++) { 753 if (!currentLayers[i]->visibleRegionScreen.isEmpty()) 754 mVisibleLayersSortedByZ.add(currentLayers[i]); 755 } 756 757 mWormholeRegion = screenRegion.subtract(opaqueRegion); 758 mVisibleRegionsDirty = false; 759 invalidateHwcGeometry(); 760 } 761 762 unlockPageFlip(currentLayers); 763 764 mDirtyRegion.orSelf(getAndClearInvalidateRegion()); 765 mDirtyRegion.andSelf(screenRegion); 766} 767 768void SurfaceFlinger::invalidateHwcGeometry() 769{ 770 mHwWorkListDirty = true; 771} 772 773bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers) 774{ 775 bool recomputeVisibleRegions = false; 776 size_t count = currentLayers.size(); 777 sp<LayerBase> const* layers = currentLayers.array(); 778 for (size_t i=0 ; i<count ; i++) { 779 const sp<LayerBase>& layer(layers[i]); 780 layer->lockPageFlip(recomputeVisibleRegions); 781 } 782 return recomputeVisibleRegions; 783} 784 785void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers) 786{ 787 const GraphicPlane& plane(graphicPlane(0)); 788 const Transform& planeTransform(plane.transform()); 789 const size_t count = currentLayers.size(); 790 sp<LayerBase> const* layers = currentLayers.array(); 791 for (size_t i=0 ; i<count ; i++) { 792 const sp<LayerBase>& layer(layers[i]); 793 layer->unlockPageFlip(planeTransform, mDirtyRegion); 794 } 795} 796 797void SurfaceFlinger::handleRefresh() 798{ 799 bool needInvalidate = false; 800 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 801 const size_t count = currentLayers.size(); 802 for (size_t i=0 ; i<count ; i++) { 803 const sp<LayerBase>& layer(currentLayers[i]); 804 if (layer->onPreComposition()) { 805 needInvalidate = true; 806 } 807 } 808 if (needInvalidate) { 809 signalLayerUpdate(); 810 } 811} 812 813 814void SurfaceFlinger::handleWorkList() 815{ 816 mHwWorkListDirty = false; 817 HWComposer& hwc(graphicPlane(0).displayHardware().getHwComposer()); 818 if (hwc.initCheck() == NO_ERROR) { 819 const Vector< sp<LayerBase> >& currentLayers(mVisibleLayersSortedByZ); 820 const size_t count = currentLayers.size(); 821 hwc.createWorkList(count); 822 hwc_layer_t* const cur(hwc.getLayers()); 823 for (size_t i=0 ; cur && i<count ; i++) { 824 currentLayers[i]->setGeometry(&cur[i]); 825 if (mDebugDisableHWC || mDebugRegion) { 826 cur[i].compositionType = HWC_FRAMEBUFFER; 827 cur[i].flags |= HWC_SKIP_LAYER; 828 } 829 } 830 } 831} 832 833void SurfaceFlinger::handleRepaint() 834{ 835 // compute the invalid region 836 mSwapRegion.orSelf(mDirtyRegion); 837 838 if (CC_UNLIKELY(mDebugRegion)) { 839 debugFlashRegions(); 840 } 841 842 // set the frame buffer 843 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 844 glMatrixMode(GL_MODELVIEW); 845 glLoadIdentity(); 846 847 uint32_t flags = hw.getFlags(); 848 if ((flags & DisplayHardware::SWAP_RECTANGLE) || 849 (flags & DisplayHardware::BUFFER_PRESERVED)) 850 { 851 // we can redraw only what's dirty, but since SWAP_RECTANGLE only 852 // takes a rectangle, we must make sure to update that whole 853 // rectangle in that case 854 if (flags & DisplayHardware::SWAP_RECTANGLE) { 855 // TODO: we really should be able to pass a region to 856 // SWAP_RECTANGLE so that we don't have to redraw all this. 857 mDirtyRegion.set(mSwapRegion.bounds()); 858 } else { 859 // in the BUFFER_PRESERVED case, obviously, we can update only 860 // what's needed and nothing more. 861 // NOTE: this is NOT a common case, as preserving the backbuffer 862 // is costly and usually involves copying the whole update back. 863 } 864 } else { 865 if (flags & DisplayHardware::PARTIAL_UPDATES) { 866 // We need to redraw the rectangle that will be updated 867 // (pushed to the framebuffer). 868 // This is needed because PARTIAL_UPDATES only takes one 869 // rectangle instead of a region (see DisplayHardware::flip()) 870 mDirtyRegion.set(mSwapRegion.bounds()); 871 } else { 872 // we need to redraw everything (the whole screen) 873 mDirtyRegion.set(hw.bounds()); 874 mSwapRegion = mDirtyRegion; 875 } 876 } 877 878 setupHardwareComposer(mDirtyRegion); 879 composeSurfaces(mDirtyRegion); 880 881 // update the swap region and clear the dirty region 882 mSwapRegion.orSelf(mDirtyRegion); 883 mDirtyRegion.clear(); 884} 885 886void SurfaceFlinger::setupHardwareComposer(Region& dirtyInOut) 887{ 888 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 889 HWComposer& hwc(hw.getHwComposer()); 890 hwc_layer_t* const cur(hwc.getLayers()); 891 if (!cur) { 892 return; 893 } 894 895 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 896 size_t count = layers.size(); 897 898 ALOGE_IF(hwc.getNumLayers() != count, 899 "HAL number of layers (%d) doesn't match surfaceflinger (%d)", 900 hwc.getNumLayers(), count); 901 902 // just to be extra-safe, use the smallest count 903 if (hwc.initCheck() == NO_ERROR) { 904 count = count < hwc.getNumLayers() ? count : hwc.getNumLayers(); 905 } 906 907 /* 908 * update the per-frame h/w composer data for each layer 909 * and build the transparent region of the FB 910 */ 911 for (size_t i=0 ; i<count ; i++) { 912 const sp<LayerBase>& layer(layers[i]); 913 layer->setPerFrameData(&cur[i]); 914 } 915 const size_t fbLayerCount = hwc.getLayerCount(HWC_FRAMEBUFFER); 916 status_t err = hwc.prepare(); 917 ALOGE_IF(err, "HWComposer::prepare failed (%s)", strerror(-err)); 918 919 if (err == NO_ERROR) { 920 // what's happening here is tricky. 921 // we want to clear all the layers with the CLEAR_FB flags 922 // that are opaque. 923 // however, since some GPU are efficient at preserving 924 // the backbuffer, we want to take advantage of that so we do the 925 // clear only in the dirty region (other areas will be preserved 926 // on those GPUs). 927 // NOTE: on non backbuffer preserving GPU, the dirty region 928 // has already been expanded as needed, so the code is correct 929 // there too. 930 // 931 // However, the content of the framebuffer cannot be trusted when 932 // we switch to/from FB/OVERLAY, in which case we need to 933 // expand the dirty region to those areas too. 934 // 935 // Note also that there is a special case when switching from 936 // "no layers in FB" to "some layers in FB", where we need to redraw 937 // the entire FB, since some areas might contain uninitialized 938 // data. 939 // 940 // Also we want to make sure to not clear areas that belong to 941 // layers above that won't redraw (we would just be erasing them), 942 // that is, we can't erase anything outside the dirty region. 943 944 Region transparent; 945 946 if (!fbLayerCount && hwc.getLayerCount(HWC_FRAMEBUFFER)) { 947 transparent.set(hw.getBounds()); 948 dirtyInOut = transparent; 949 } else { 950 for (size_t i=0 ; i<count ; i++) { 951 const sp<LayerBase>& layer(layers[i]); 952 if ((cur[i].hints & HWC_HINT_CLEAR_FB) && layer->isOpaque()) { 953 transparent.orSelf(layer->visibleRegionScreen); 954 } 955 bool isOverlay = (cur[i].compositionType != HWC_FRAMEBUFFER); 956 if (isOverlay != layer->isOverlay()) { 957 // we transitioned to/from overlay, so add this layer 958 // to the dirty region so the framebuffer can be either 959 // cleared or redrawn. 960 dirtyInOut.orSelf(layer->visibleRegionScreen); 961 } 962 layer->setOverlay(isOverlay); 963 } 964 // don't erase stuff outside the dirty region 965 transparent.andSelf(dirtyInOut); 966 } 967 968 /* 969 * clear the area of the FB that need to be transparent 970 */ 971 if (!transparent.isEmpty()) { 972 glClearColor(0,0,0,0); 973 Region::const_iterator it = transparent.begin(); 974 Region::const_iterator const end = transparent.end(); 975 const int32_t height = hw.getHeight(); 976 while (it != end) { 977 const Rect& r(*it++); 978 const GLint sy = height - (r.top + r.height()); 979 glScissor(r.left, sy, r.width(), r.height()); 980 glClear(GL_COLOR_BUFFER_BIT); 981 } 982 } 983 } 984} 985 986void SurfaceFlinger::composeSurfaces(const Region& dirty) 987{ 988 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 989 HWComposer& hwc(hw.getHwComposer()); 990 991 const size_t fbLayerCount = hwc.getLayerCount(HWC_FRAMEBUFFER); 992 if (CC_UNLIKELY(fbLayerCount && !mWormholeRegion.isEmpty())) { 993 // should never happen unless the window manager has a bug 994 // draw something... 995 drawWormhole(); 996 } 997 998 /* 999 * and then, render the layers targeted at the framebuffer 1000 */ 1001 hwc_layer_t* const cur(hwc.getLayers()); 1002 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1003 size_t count = layers.size(); 1004 for (size_t i=0 ; i<count ; i++) { 1005 if (cur && (cur[i].compositionType != HWC_FRAMEBUFFER)) { 1006 continue; 1007 } 1008 const sp<LayerBase>& layer(layers[i]); 1009 const Region clip(dirty.intersect(layer->visibleRegionScreen)); 1010 if (!clip.isEmpty()) { 1011 layer->draw(clip); 1012 } 1013 } 1014} 1015 1016void SurfaceFlinger::debugFlashRegions() 1017{ 1018 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1019 const uint32_t flags = hw.getFlags(); 1020 const int32_t height = hw.getHeight(); 1021 if (mSwapRegion.isEmpty()) { 1022 return; 1023 } 1024 1025 if (!((flags & DisplayHardware::SWAP_RECTANGLE) || 1026 (flags & DisplayHardware::BUFFER_PRESERVED))) { 1027 const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ? 1028 mDirtyRegion.bounds() : hw.bounds()); 1029 composeSurfaces(repaint); 1030 } 1031 1032 glDisable(GL_TEXTURE_EXTERNAL_OES); 1033 glDisable(GL_TEXTURE_2D); 1034 glDisable(GL_BLEND); 1035 glDisable(GL_SCISSOR_TEST); 1036 1037 static int toggle = 0; 1038 toggle = 1 - toggle; 1039 if (toggle) { 1040 glColor4f(1, 0, 1, 1); 1041 } else { 1042 glColor4f(1, 1, 0, 1); 1043 } 1044 1045 Region::const_iterator it = mDirtyRegion.begin(); 1046 Region::const_iterator const end = mDirtyRegion.end(); 1047 while (it != end) { 1048 const Rect& r = *it++; 1049 GLfloat vertices[][2] = { 1050 { r.left, height - r.top }, 1051 { r.left, height - r.bottom }, 1052 { r.right, height - r.bottom }, 1053 { r.right, height - r.top } 1054 }; 1055 glVertexPointer(2, GL_FLOAT, 0, vertices); 1056 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1057 } 1058 1059 hw.flip(mSwapRegion); 1060 1061 if (mDebugRegion > 1) 1062 usleep(mDebugRegion * 1000); 1063 1064 glEnable(GL_SCISSOR_TEST); 1065} 1066 1067void SurfaceFlinger::drawWormhole() const 1068{ 1069 const Region region(mWormholeRegion.intersect(mDirtyRegion)); 1070 if (region.isEmpty()) 1071 return; 1072 1073 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1074 const int32_t width = hw.getWidth(); 1075 const int32_t height = hw.getHeight(); 1076 1077 if (CC_LIKELY(!mDebugBackground)) { 1078 glClearColor(0,0,0,0); 1079 Region::const_iterator it = region.begin(); 1080 Region::const_iterator const end = region.end(); 1081 while (it != end) { 1082 const Rect& r = *it++; 1083 const GLint sy = height - (r.top + r.height()); 1084 glScissor(r.left, sy, r.width(), r.height()); 1085 glClear(GL_COLOR_BUFFER_BIT); 1086 } 1087 } else { 1088 const GLshort vertices[][2] = { { 0, 0 }, { width, 0 }, 1089 { width, height }, { 0, height } }; 1090 const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } }; 1091 1092 glVertexPointer(2, GL_SHORT, 0, vertices); 1093 glTexCoordPointer(2, GL_SHORT, 0, tcoords); 1094 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1095 1096 glDisable(GL_TEXTURE_EXTERNAL_OES); 1097 glEnable(GL_TEXTURE_2D); 1098 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 1099 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1100 glMatrixMode(GL_TEXTURE); 1101 glLoadIdentity(); 1102 1103 glDisable(GL_BLEND); 1104 1105 glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1); 1106 Region::const_iterator it = region.begin(); 1107 Region::const_iterator const end = region.end(); 1108 while (it != end) { 1109 const Rect& r = *it++; 1110 const GLint sy = height - (r.top + r.height()); 1111 glScissor(r.left, sy, r.width(), r.height()); 1112 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1113 } 1114 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1115 glDisable(GL_TEXTURE_2D); 1116 glLoadIdentity(); 1117 glMatrixMode(GL_MODELVIEW); 1118 } 1119} 1120 1121status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer) 1122{ 1123 Mutex::Autolock _l(mStateLock); 1124 addLayer_l(layer); 1125 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1126 return NO_ERROR; 1127} 1128 1129status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer) 1130{ 1131 ssize_t i = mCurrentState.layersSortedByZ.add(layer); 1132 return (i < 0) ? status_t(i) : status_t(NO_ERROR); 1133} 1134 1135ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client, 1136 const sp<LayerBaseClient>& lbc) 1137{ 1138 // attach this layer to the client 1139 size_t name = client->attachLayer(lbc); 1140 1141 Mutex::Autolock _l(mStateLock); 1142 1143 // add this layer to the current state list 1144 addLayer_l(lbc); 1145 1146 return ssize_t(name); 1147} 1148 1149status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer) 1150{ 1151 Mutex::Autolock _l(mStateLock); 1152 status_t err = purgatorizeLayer_l(layer); 1153 if (err == NO_ERROR) 1154 setTransactionFlags(eTransactionNeeded); 1155 return err; 1156} 1157 1158status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase) 1159{ 1160 sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient()); 1161 if (lbc != 0) { 1162 mLayerMap.removeItem( lbc->getSurfaceBinder() ); 1163 } 1164 ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase); 1165 if (index >= 0) { 1166 mLayersRemoved = true; 1167 return NO_ERROR; 1168 } 1169 return status_t(index); 1170} 1171 1172status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase) 1173{ 1174 // First add the layer to the purgatory list, which makes sure it won't 1175 // go away, then remove it from the main list (through a transaction). 1176 ssize_t err = removeLayer_l(layerBase); 1177 if (err >= 0) { 1178 mLayerPurgatory.add(layerBase); 1179 } 1180 1181 mLayersPendingRemoval.push(layerBase); 1182 1183 // it's possible that we don't find a layer, because it might 1184 // have been destroyed already -- this is not technically an error 1185 // from the user because there is a race between Client::destroySurface(), 1186 // ~Client() and ~ISurface(). 1187 return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err; 1188} 1189 1190status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer) 1191{ 1192 layer->forceVisibilityTransaction(); 1193 setTransactionFlags(eTraversalNeeded); 1194 return NO_ERROR; 1195} 1196 1197uint32_t SurfaceFlinger::peekTransactionFlags(uint32_t flags) 1198{ 1199 return android_atomic_release_load(&mTransactionFlags); 1200} 1201 1202uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags) 1203{ 1204 return android_atomic_and(~flags, &mTransactionFlags) & flags; 1205} 1206 1207uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags) 1208{ 1209 uint32_t old = android_atomic_or(flags, &mTransactionFlags); 1210 if ((old & flags)==0) { // wake the server up 1211 signalTransaction(); 1212 } 1213 return old; 1214} 1215 1216 1217void SurfaceFlinger::setTransactionState(const Vector<ComposerState>& state, 1218 int orientation, uint32_t flags) { 1219 Mutex::Autolock _l(mStateLock); 1220 1221 uint32_t transactionFlags = 0; 1222 if (mCurrentState.orientation != orientation) { 1223 if (uint32_t(orientation)<=eOrientation270 || orientation==42) { 1224 mCurrentState.orientation = orientation; 1225 transactionFlags |= eTransactionNeeded; 1226 } else if (orientation != eOrientationUnchanged) { 1227 ALOGW("setTransactionState: ignoring unrecognized orientation: %d", 1228 orientation); 1229 } 1230 } 1231 1232 const size_t count = state.size(); 1233 for (size_t i=0 ; i<count ; i++) { 1234 const ComposerState& s(state[i]); 1235 sp<Client> client( static_cast<Client *>(s.client.get()) ); 1236 transactionFlags |= setClientStateLocked(client, s.state); 1237 } 1238 1239 if (transactionFlags) { 1240 // this triggers the transaction 1241 setTransactionFlags(transactionFlags); 1242 1243 // if this is a synchronous transaction, wait for it to take effect 1244 // before returning. 1245 if (flags & eSynchronous) { 1246 mTransationPending = true; 1247 } 1248 while (mTransationPending) { 1249 status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5)); 1250 if (CC_UNLIKELY(err != NO_ERROR)) { 1251 // just in case something goes wrong in SF, return to the 1252 // called after a few seconds. 1253 ALOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!"); 1254 mTransationPending = false; 1255 break; 1256 } 1257 } 1258 } 1259} 1260 1261sp<ISurface> SurfaceFlinger::createSurface( 1262 ISurfaceComposerClient::surface_data_t* params, 1263 const String8& name, 1264 const sp<Client>& client, 1265 DisplayID d, uint32_t w, uint32_t h, PixelFormat format, 1266 uint32_t flags) 1267{ 1268 sp<LayerBaseClient> layer; 1269 sp<ISurface> surfaceHandle; 1270 1271 if (int32_t(w|h) < 0) { 1272 ALOGE("createSurface() failed, w or h is negative (w=%d, h=%d)", 1273 int(w), int(h)); 1274 return surfaceHandle; 1275 } 1276 1277 //ALOGD("createSurface for pid %d (%d x %d)", pid, w, h); 1278 sp<Layer> normalLayer; 1279 switch (flags & eFXSurfaceMask) { 1280 case eFXSurfaceNormal: 1281 normalLayer = createNormalSurface(client, d, w, h, flags, format); 1282 layer = normalLayer; 1283 break; 1284 case eFXSurfaceBlur: 1285 // for now we treat Blur as Dim, until we can implement it 1286 // efficiently. 1287 case eFXSurfaceDim: 1288 layer = createDimSurface(client, d, w, h, flags); 1289 break; 1290 case eFXSurfaceScreenshot: 1291 layer = createScreenshotSurface(client, d, w, h, flags); 1292 break; 1293 } 1294 1295 if (layer != 0) { 1296 layer->initStates(w, h, flags); 1297 layer->setName(name); 1298 ssize_t token = addClientLayer(client, layer); 1299 1300 surfaceHandle = layer->getSurface(); 1301 if (surfaceHandle != 0) { 1302 params->token = token; 1303 params->identity = layer->getIdentity(); 1304 if (normalLayer != 0) { 1305 Mutex::Autolock _l(mStateLock); 1306 mLayerMap.add(layer->getSurfaceBinder(), normalLayer); 1307 } 1308 } 1309 1310 setTransactionFlags(eTransactionNeeded); 1311 } 1312 1313 return surfaceHandle; 1314} 1315 1316sp<Layer> SurfaceFlinger::createNormalSurface( 1317 const sp<Client>& client, DisplayID display, 1318 uint32_t w, uint32_t h, uint32_t flags, 1319 PixelFormat& format) 1320{ 1321 // initialize the surfaces 1322 switch (format) { // TODO: take h/w into account 1323 case PIXEL_FORMAT_TRANSPARENT: 1324 case PIXEL_FORMAT_TRANSLUCENT: 1325 format = PIXEL_FORMAT_RGBA_8888; 1326 break; 1327 case PIXEL_FORMAT_OPAQUE: 1328#ifdef NO_RGBX_8888 1329 format = PIXEL_FORMAT_RGB_565; 1330#else 1331 format = PIXEL_FORMAT_RGBX_8888; 1332#endif 1333 break; 1334 } 1335 1336#ifdef NO_RGBX_8888 1337 if (format == PIXEL_FORMAT_RGBX_8888) 1338 format = PIXEL_FORMAT_RGBA_8888; 1339#endif 1340 1341 sp<Layer> layer = new Layer(this, display, client); 1342 status_t err = layer->setBuffers(w, h, format, flags); 1343 if (CC_LIKELY(err != NO_ERROR)) { 1344 ALOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err)); 1345 layer.clear(); 1346 } 1347 return layer; 1348} 1349 1350sp<LayerDim> SurfaceFlinger::createDimSurface( 1351 const sp<Client>& client, DisplayID display, 1352 uint32_t w, uint32_t h, uint32_t flags) 1353{ 1354 sp<LayerDim> layer = new LayerDim(this, display, client); 1355 return layer; 1356} 1357 1358sp<LayerScreenshot> SurfaceFlinger::createScreenshotSurface( 1359 const sp<Client>& client, DisplayID display, 1360 uint32_t w, uint32_t h, uint32_t flags) 1361{ 1362 sp<LayerScreenshot> layer = new LayerScreenshot(this, display, client); 1363 return layer; 1364} 1365 1366status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid) 1367{ 1368 /* 1369 * called by the window manager, when a surface should be marked for 1370 * destruction. 1371 * 1372 * The surface is removed from the current and drawing lists, but placed 1373 * in the purgatory queue, so it's not destroyed right-away (we need 1374 * to wait for all client's references to go away first). 1375 */ 1376 1377 status_t err = NAME_NOT_FOUND; 1378 Mutex::Autolock _l(mStateLock); 1379 sp<LayerBaseClient> layer = client->getLayerUser(sid); 1380 if (layer != 0) { 1381 err = purgatorizeLayer_l(layer); 1382 if (err == NO_ERROR) { 1383 setTransactionFlags(eTransactionNeeded); 1384 } 1385 } 1386 return err; 1387} 1388 1389status_t SurfaceFlinger::destroySurface(const wp<LayerBaseClient>& layer) 1390{ 1391 // called by ~ISurface() when all references are gone 1392 status_t err = NO_ERROR; 1393 sp<LayerBaseClient> l(layer.promote()); 1394 if (l != NULL) { 1395 Mutex::Autolock _l(mStateLock); 1396 err = removeLayer_l(l); 1397 if (err == NAME_NOT_FOUND) { 1398 // The surface wasn't in the current list, which means it was 1399 // removed already, which means it is in the purgatory, 1400 // and need to be removed from there. 1401 ssize_t idx = mLayerPurgatory.remove(l); 1402 ALOGE_IF(idx < 0, 1403 "layer=%p is not in the purgatory list", l.get()); 1404 } 1405 ALOGE_IF(err<0 && err != NAME_NOT_FOUND, 1406 "error removing layer=%p (%s)", l.get(), strerror(-err)); 1407 } 1408 return err; 1409} 1410 1411uint32_t SurfaceFlinger::setClientStateLocked( 1412 const sp<Client>& client, 1413 const layer_state_t& s) 1414{ 1415 uint32_t flags = 0; 1416 sp<LayerBaseClient> layer(client->getLayerUser(s.surface)); 1417 if (layer != 0) { 1418 const uint32_t what = s.what; 1419 if (what & ePositionChanged) { 1420 if (layer->setPosition(s.x, s.y)) 1421 flags |= eTraversalNeeded; 1422 } 1423 if (what & eLayerChanged) { 1424 ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer); 1425 if (layer->setLayer(s.z)) { 1426 mCurrentState.layersSortedByZ.removeAt(idx); 1427 mCurrentState.layersSortedByZ.add(layer); 1428 // we need traversal (state changed) 1429 // AND transaction (list changed) 1430 flags |= eTransactionNeeded|eTraversalNeeded; 1431 } 1432 } 1433 if (what & eSizeChanged) { 1434 if (layer->setSize(s.w, s.h)) { 1435 flags |= eTraversalNeeded; 1436 } 1437 } 1438 if (what & eAlphaChanged) { 1439 if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f))) 1440 flags |= eTraversalNeeded; 1441 } 1442 if (what & eMatrixChanged) { 1443 if (layer->setMatrix(s.matrix)) 1444 flags |= eTraversalNeeded; 1445 } 1446 if (what & eTransparentRegionChanged) { 1447 if (layer->setTransparentRegionHint(s.transparentRegion)) 1448 flags |= eTraversalNeeded; 1449 } 1450 if (what & eVisibilityChanged) { 1451 if (layer->setFlags(s.flags, s.mask)) 1452 flags |= eTraversalNeeded; 1453 } 1454 } 1455 return flags; 1456} 1457 1458void SurfaceFlinger::screenReleased(int dpy) 1459{ 1460 // this may be called by a signal handler, we can't do too much in here 1461 android_atomic_or(eConsoleReleased, &mConsoleSignals); 1462 signalTransaction(); 1463} 1464 1465void SurfaceFlinger::screenAcquired(int dpy) 1466{ 1467 // this may be called by a signal handler, we can't do too much in here 1468 android_atomic_or(eConsoleAcquired, &mConsoleSignals); 1469 signalTransaction(); 1470} 1471 1472status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args) 1473{ 1474 const size_t SIZE = 4096; 1475 char buffer[SIZE]; 1476 String8 result; 1477 1478 if (!PermissionCache::checkCallingPermission(sDump)) { 1479 snprintf(buffer, SIZE, "Permission Denial: " 1480 "can't dump SurfaceFlinger from pid=%d, uid=%d\n", 1481 IPCThreadState::self()->getCallingPid(), 1482 IPCThreadState::self()->getCallingUid()); 1483 result.append(buffer); 1484 } else { 1485 // Try to get the main lock, but don't insist if we can't 1486 // (this would indicate SF is stuck, but we want to be able to 1487 // print something in dumpsys). 1488 int retry = 3; 1489 while (mStateLock.tryLock()<0 && --retry>=0) { 1490 usleep(1000000); 1491 } 1492 const bool locked(retry >= 0); 1493 if (!locked) { 1494 snprintf(buffer, SIZE, 1495 "SurfaceFlinger appears to be unresponsive, " 1496 "dumping anyways (no locks held)\n"); 1497 result.append(buffer); 1498 } 1499 1500 bool dumpAll = true; 1501 size_t index = 0; 1502 size_t numArgs = args.size(); 1503 if (numArgs) { 1504 dumpAll = false; 1505 1506 if ((index < numArgs) && 1507 (args[index] == String16("--list"))) { 1508 index++; 1509 listLayersLocked(args, index, result, buffer, SIZE); 1510 } 1511 1512 if ((index < numArgs) && 1513 (args[index] == String16("--latency"))) { 1514 index++; 1515 dumpStatsLocked(args, index, result, buffer, SIZE); 1516 } 1517 1518 if ((index < numArgs) && 1519 (args[index] == String16("--latency-clear"))) { 1520 index++; 1521 clearStatsLocked(args, index, result, buffer, SIZE); 1522 } 1523 } 1524 1525 if (dumpAll) { 1526 dumpAllLocked(result, buffer, SIZE); 1527 } 1528 1529 if (locked) { 1530 mStateLock.unlock(); 1531 } 1532 } 1533 write(fd, result.string(), result.size()); 1534 return NO_ERROR; 1535} 1536 1537void SurfaceFlinger::listLayersLocked(const Vector<String16>& args, size_t& index, 1538 String8& result, char* buffer, size_t SIZE) const 1539{ 1540 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1541 const size_t count = currentLayers.size(); 1542 for (size_t i=0 ; i<count ; i++) { 1543 const sp<LayerBase>& layer(currentLayers[i]); 1544 snprintf(buffer, SIZE, "%s\n", layer->getName().string()); 1545 result.append(buffer); 1546 } 1547} 1548 1549void SurfaceFlinger::dumpStatsLocked(const Vector<String16>& args, size_t& index, 1550 String8& result, char* buffer, size_t SIZE) const 1551{ 1552 String8 name; 1553 if (index < args.size()) { 1554 name = String8(args[index]); 1555 index++; 1556 } 1557 1558 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1559 const size_t count = currentLayers.size(); 1560 for (size_t i=0 ; i<count ; i++) { 1561 const sp<LayerBase>& layer(currentLayers[i]); 1562 if (name.isEmpty()) { 1563 snprintf(buffer, SIZE, "%s\n", layer->getName().string()); 1564 result.append(buffer); 1565 } 1566 if (name.isEmpty() || (name == layer->getName())) { 1567 layer->dumpStats(result, buffer, SIZE); 1568 } 1569 } 1570} 1571 1572void SurfaceFlinger::clearStatsLocked(const Vector<String16>& args, size_t& index, 1573 String8& result, char* buffer, size_t SIZE) const 1574{ 1575 String8 name; 1576 if (index < args.size()) { 1577 name = String8(args[index]); 1578 index++; 1579 } 1580 1581 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1582 const size_t count = currentLayers.size(); 1583 for (size_t i=0 ; i<count ; i++) { 1584 const sp<LayerBase>& layer(currentLayers[i]); 1585 if (name.isEmpty() || (name == layer->getName())) { 1586 layer->clearStats(); 1587 } 1588 } 1589} 1590 1591void SurfaceFlinger::dumpAllLocked( 1592 String8& result, char* buffer, size_t SIZE) const 1593{ 1594 // figure out if we're stuck somewhere 1595 const nsecs_t now = systemTime(); 1596 const nsecs_t inSwapBuffers(mDebugInSwapBuffers); 1597 const nsecs_t inTransaction(mDebugInTransaction); 1598 nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0; 1599 nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0; 1600 1601 /* 1602 * Dump the visible layer list 1603 */ 1604 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1605 const size_t count = currentLayers.size(); 1606 snprintf(buffer, SIZE, "Visible layers (count = %d)\n", count); 1607 result.append(buffer); 1608 for (size_t i=0 ; i<count ; i++) { 1609 const sp<LayerBase>& layer(currentLayers[i]); 1610 layer->dump(result, buffer, SIZE); 1611 } 1612 1613 /* 1614 * Dump the layers in the purgatory 1615 */ 1616 1617 const size_t purgatorySize = mLayerPurgatory.size(); 1618 snprintf(buffer, SIZE, "Purgatory state (%d entries)\n", purgatorySize); 1619 result.append(buffer); 1620 for (size_t i=0 ; i<purgatorySize ; i++) { 1621 const sp<LayerBase>& layer(mLayerPurgatory.itemAt(i)); 1622 layer->shortDump(result, buffer, SIZE); 1623 } 1624 1625 /* 1626 * Dump SurfaceFlinger global state 1627 */ 1628 1629 snprintf(buffer, SIZE, "SurfaceFlinger global state:\n"); 1630 result.append(buffer); 1631 1632 const GLExtensions& extensions(GLExtensions::getInstance()); 1633 snprintf(buffer, SIZE, "GLES: %s, %s, %s\n", 1634 extensions.getVendor(), 1635 extensions.getRenderer(), 1636 extensions.getVersion()); 1637 result.append(buffer); 1638 1639 snprintf(buffer, SIZE, "EGL : %s\n", 1640 eglQueryString(graphicPlane(0).getEGLDisplay(), 1641 EGL_VERSION_HW_ANDROID)); 1642 result.append(buffer); 1643 1644 snprintf(buffer, SIZE, "EXTS: %s\n", extensions.getExtension()); 1645 result.append(buffer); 1646 1647 mWormholeRegion.dump(result, "WormholeRegion"); 1648 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1649 snprintf(buffer, SIZE, 1650 " orientation=%d, canDraw=%d\n", 1651 mCurrentState.orientation, hw.canDraw()); 1652 result.append(buffer); 1653 snprintf(buffer, SIZE, 1654 " last eglSwapBuffers() time: %f us\n" 1655 " last transaction time : %f us\n" 1656 " refresh-rate : %f fps\n" 1657 " x-dpi : %f\n" 1658 " y-dpi : %f\n", 1659 mLastSwapBufferTime/1000.0, 1660 mLastTransactionTime/1000.0, 1661 hw.getRefreshRate(), 1662 hw.getDpiX(), 1663 hw.getDpiY()); 1664 result.append(buffer); 1665 1666 snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n", 1667 inSwapBuffersDuration/1000.0); 1668 result.append(buffer); 1669 1670 snprintf(buffer, SIZE, " transaction time: %f us\n", 1671 inTransactionDuration/1000.0); 1672 result.append(buffer); 1673 1674 /* 1675 * VSYNC state 1676 */ 1677 mEventThread->dump(result, buffer, SIZE); 1678 1679 /* 1680 * Dump HWComposer state 1681 */ 1682 HWComposer& hwc(hw.getHwComposer()); 1683 snprintf(buffer, SIZE, "h/w composer state:\n"); 1684 result.append(buffer); 1685 snprintf(buffer, SIZE, " h/w composer %s and %s\n", 1686 hwc.initCheck()==NO_ERROR ? "present" : "not present", 1687 (mDebugDisableHWC || mDebugRegion) ? "disabled" : "enabled"); 1688 result.append(buffer); 1689 hwc.dump(result, buffer, SIZE, mVisibleLayersSortedByZ); 1690 1691 /* 1692 * Dump gralloc state 1693 */ 1694 const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get()); 1695 alloc.dump(result); 1696 hw.dump(result); 1697} 1698 1699status_t SurfaceFlinger::onTransact( 1700 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1701{ 1702 switch (code) { 1703 case CREATE_CONNECTION: 1704 case SET_TRANSACTION_STATE: 1705 case SET_ORIENTATION: 1706 case BOOT_FINISHED: 1707 case TURN_ELECTRON_BEAM_OFF: 1708 case TURN_ELECTRON_BEAM_ON: 1709 { 1710 // codes that require permission check 1711 IPCThreadState* ipc = IPCThreadState::self(); 1712 const int pid = ipc->getCallingPid(); 1713 const int uid = ipc->getCallingUid(); 1714 if ((uid != AID_GRAPHICS) && 1715 !PermissionCache::checkPermission(sAccessSurfaceFlinger, pid, uid)) { 1716 ALOGE("Permission Denial: " 1717 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1718 return PERMISSION_DENIED; 1719 } 1720 break; 1721 } 1722 case CAPTURE_SCREEN: 1723 { 1724 // codes that require permission check 1725 IPCThreadState* ipc = IPCThreadState::self(); 1726 const int pid = ipc->getCallingPid(); 1727 const int uid = ipc->getCallingUid(); 1728 if ((uid != AID_GRAPHICS) && 1729 !PermissionCache::checkPermission(sReadFramebuffer, pid, uid)) { 1730 ALOGE("Permission Denial: " 1731 "can't read framebuffer pid=%d, uid=%d", pid, uid); 1732 return PERMISSION_DENIED; 1733 } 1734 break; 1735 } 1736 } 1737 1738 status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags); 1739 if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) { 1740 CHECK_INTERFACE(ISurfaceComposer, data, reply); 1741 if (CC_UNLIKELY(!PermissionCache::checkCallingPermission(sHardwareTest))) { 1742 IPCThreadState* ipc = IPCThreadState::self(); 1743 const int pid = ipc->getCallingPid(); 1744 const int uid = ipc->getCallingUid(); 1745 ALOGE("Permission Denial: " 1746 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1747 return PERMISSION_DENIED; 1748 } 1749 int n; 1750 switch (code) { 1751 case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE 1752 case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE 1753 return NO_ERROR; 1754 case 1002: // SHOW_UPDATES 1755 n = data.readInt32(); 1756 mDebugRegion = n ? n : (mDebugRegion ? 0 : 1); 1757 invalidateHwcGeometry(); 1758 repaintEverything(); 1759 return NO_ERROR; 1760 case 1003: // SHOW_BACKGROUND 1761 n = data.readInt32(); 1762 mDebugBackground = n ? 1 : 0; 1763 return NO_ERROR; 1764 case 1004:{ // repaint everything 1765 repaintEverything(); 1766 return NO_ERROR; 1767 } 1768 case 1005:{ // force transaction 1769 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1770 return NO_ERROR; 1771 } 1772 case 1008: // toggle use of hw composer 1773 n = data.readInt32(); 1774 mDebugDisableHWC = n ? 1 : 0; 1775 invalidateHwcGeometry(); 1776 repaintEverything(); 1777 return NO_ERROR; 1778 case 1009: // toggle use of transform hint 1779 n = data.readInt32(); 1780 mDebugDisableTransformHint = n ? 1 : 0; 1781 invalidateHwcGeometry(); 1782 repaintEverything(); 1783 return NO_ERROR; 1784 case 1010: // interrogate. 1785 reply->writeInt32(0); 1786 reply->writeInt32(0); 1787 reply->writeInt32(mDebugRegion); 1788 reply->writeInt32(mDebugBackground); 1789 return NO_ERROR; 1790 case 1013: { 1791 Mutex::Autolock _l(mStateLock); 1792 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1793 reply->writeInt32(hw.getPageFlipCount()); 1794 } 1795 return NO_ERROR; 1796 } 1797 } 1798 return err; 1799} 1800 1801void SurfaceFlinger::repaintEverything() { 1802 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1803 const Rect bounds(hw.getBounds()); 1804 setInvalidateRegion(Region(bounds)); 1805 signalTransaction(); 1806} 1807 1808void SurfaceFlinger::setInvalidateRegion(const Region& reg) { 1809 Mutex::Autolock _l(mInvalidateLock); 1810 mInvalidateRegion = reg; 1811} 1812 1813Region SurfaceFlinger::getAndClearInvalidateRegion() { 1814 Mutex::Autolock _l(mInvalidateLock); 1815 Region reg(mInvalidateRegion); 1816 mInvalidateRegion.clear(); 1817 return reg; 1818} 1819 1820// --------------------------------------------------------------------------- 1821 1822status_t SurfaceFlinger::renderScreenToTexture(DisplayID dpy, 1823 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1824{ 1825 Mutex::Autolock _l(mStateLock); 1826 return renderScreenToTextureLocked(dpy, textureName, uOut, vOut); 1827} 1828 1829status_t SurfaceFlinger::renderScreenToTextureLocked(DisplayID dpy, 1830 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1831{ 1832 if (!GLExtensions::getInstance().haveFramebufferObject()) 1833 return INVALID_OPERATION; 1834 1835 // get screen geometry 1836 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 1837 const uint32_t hw_w = hw.getWidth(); 1838 const uint32_t hw_h = hw.getHeight(); 1839 GLfloat u = 1; 1840 GLfloat v = 1; 1841 1842 // make sure to clear all GL error flags 1843 while ( glGetError() != GL_NO_ERROR ) ; 1844 1845 // create a FBO 1846 GLuint name, tname; 1847 glGenTextures(1, &tname); 1848 glBindTexture(GL_TEXTURE_2D, tname); 1849 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1850 hw_w, hw_h, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1851 if (glGetError() != GL_NO_ERROR) { 1852 while ( glGetError() != GL_NO_ERROR ) ; 1853 GLint tw = (2 << (31 - clz(hw_w))); 1854 GLint th = (2 << (31 - clz(hw_h))); 1855 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1856 tw, th, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1857 u = GLfloat(hw_w) / tw; 1858 v = GLfloat(hw_h) / th; 1859 } 1860 glGenFramebuffersOES(1, &name); 1861 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 1862 glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, 1863 GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0); 1864 1865 // redraw the screen entirely... 1866 glDisable(GL_TEXTURE_EXTERNAL_OES); 1867 glDisable(GL_TEXTURE_2D); 1868 glDisable(GL_SCISSOR_TEST); 1869 glClearColor(0,0,0,1); 1870 glClear(GL_COLOR_BUFFER_BIT); 1871 glEnable(GL_SCISSOR_TEST); 1872 glMatrixMode(GL_MODELVIEW); 1873 glLoadIdentity(); 1874 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1875 const size_t count = layers.size(); 1876 for (size_t i=0 ; i<count ; ++i) { 1877 const sp<LayerBase>& layer(layers[i]); 1878 layer->drawForSreenShot(); 1879 } 1880 1881 hw.compositionComplete(); 1882 1883 // back to main framebuffer 1884 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1885 glDisable(GL_SCISSOR_TEST); 1886 glDeleteFramebuffersOES(1, &name); 1887 1888 *textureName = tname; 1889 *uOut = u; 1890 *vOut = v; 1891 return NO_ERROR; 1892} 1893 1894// --------------------------------------------------------------------------- 1895 1896status_t SurfaceFlinger::electronBeamOffAnimationImplLocked() 1897{ 1898 // get screen geometry 1899 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1900 const uint32_t hw_w = hw.getWidth(); 1901 const uint32_t hw_h = hw.getHeight(); 1902 const Region screenBounds(hw.getBounds()); 1903 1904 GLfloat u, v; 1905 GLuint tname; 1906 status_t result = renderScreenToTextureLocked(0, &tname, &u, &v); 1907 if (result != NO_ERROR) { 1908 return result; 1909 } 1910 1911 GLfloat vtx[8]; 1912 const GLfloat texCoords[4][2] = { {0,0}, {0,v}, {u,v}, {u,0} }; 1913 glBindTexture(GL_TEXTURE_2D, tname); 1914 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1915 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1916 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1917 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1918 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1919 glVertexPointer(2, GL_FLOAT, 0, vtx); 1920 1921 /* 1922 * Texture coordinate mapping 1923 * 1924 * u 1925 * 1 +----------+---+ 1926 * | | | | image is inverted 1927 * | V | | w.r.t. the texture 1928 * 1-v +----------+ | coordinates 1929 * | | 1930 * | | 1931 * | | 1932 * 0 +--------------+ 1933 * 0 1 1934 * 1935 */ 1936 1937 class s_curve_interpolator { 1938 const float nbFrames, s, v; 1939 public: 1940 s_curve_interpolator(int nbFrames, float s) 1941 : nbFrames(1.0f / (nbFrames-1)), s(s), 1942 v(1.0f + expf(-s + 0.5f*s)) { 1943 } 1944 float operator()(int f) { 1945 const float x = f * nbFrames; 1946 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1947 } 1948 }; 1949 1950 class v_stretch { 1951 const GLfloat hw_w, hw_h; 1952 public: 1953 v_stretch(uint32_t hw_w, uint32_t hw_h) 1954 : hw_w(hw_w), hw_h(hw_h) { 1955 } 1956 void operator()(GLfloat* vtx, float v) { 1957 const GLfloat w = hw_w + (hw_w * v); 1958 const GLfloat h = hw_h - (hw_h * v); 1959 const GLfloat x = (hw_w - w) * 0.5f; 1960 const GLfloat y = (hw_h - h) * 0.5f; 1961 vtx[0] = x; vtx[1] = y; 1962 vtx[2] = x; vtx[3] = y + h; 1963 vtx[4] = x + w; vtx[5] = y + h; 1964 vtx[6] = x + w; vtx[7] = y; 1965 } 1966 }; 1967 1968 class h_stretch { 1969 const GLfloat hw_w, hw_h; 1970 public: 1971 h_stretch(uint32_t hw_w, uint32_t hw_h) 1972 : hw_w(hw_w), hw_h(hw_h) { 1973 } 1974 void operator()(GLfloat* vtx, float v) { 1975 const GLfloat w = hw_w - (hw_w * v); 1976 const GLfloat h = 1.0f; 1977 const GLfloat x = (hw_w - w) * 0.5f; 1978 const GLfloat y = (hw_h - h) * 0.5f; 1979 vtx[0] = x; vtx[1] = y; 1980 vtx[2] = x; vtx[3] = y + h; 1981 vtx[4] = x + w; vtx[5] = y + h; 1982 vtx[6] = x + w; vtx[7] = y; 1983 } 1984 }; 1985 1986 // the full animation is 24 frames 1987 char value[PROPERTY_VALUE_MAX]; 1988 property_get("debug.sf.electron_frames", value, "24"); 1989 int nbFrames = (atoi(value) + 1) >> 1; 1990 if (nbFrames <= 0) // just in case 1991 nbFrames = 24; 1992 1993 s_curve_interpolator itr(nbFrames, 7.5f); 1994 s_curve_interpolator itg(nbFrames, 8.0f); 1995 s_curve_interpolator itb(nbFrames, 8.5f); 1996 1997 v_stretch vverts(hw_w, hw_h); 1998 1999 glMatrixMode(GL_TEXTURE); 2000 glLoadIdentity(); 2001 glMatrixMode(GL_MODELVIEW); 2002 glLoadIdentity(); 2003 2004 glEnable(GL_BLEND); 2005 glBlendFunc(GL_ONE, GL_ONE); 2006 for (int i=0 ; i<nbFrames ; i++) { 2007 float x, y, w, h; 2008 const float vr = itr(i); 2009 const float vg = itg(i); 2010 const float vb = itb(i); 2011 2012 // clear screen 2013 glColorMask(1,1,1,1); 2014 glClear(GL_COLOR_BUFFER_BIT); 2015 glEnable(GL_TEXTURE_2D); 2016 2017 // draw the red plane 2018 vverts(vtx, vr); 2019 glColorMask(1,0,0,1); 2020 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2021 2022 // draw the green plane 2023 vverts(vtx, vg); 2024 glColorMask(0,1,0,1); 2025 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2026 2027 // draw the blue plane 2028 vverts(vtx, vb); 2029 glColorMask(0,0,1,1); 2030 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2031 2032 // draw the white highlight (we use the last vertices) 2033 glDisable(GL_TEXTURE_2D); 2034 glColorMask(1,1,1,1); 2035 glColor4f(vg, vg, vg, 1); 2036 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2037 hw.flip(screenBounds); 2038 } 2039 2040 h_stretch hverts(hw_w, hw_h); 2041 glDisable(GL_BLEND); 2042 glDisable(GL_TEXTURE_2D); 2043 glColorMask(1,1,1,1); 2044 for (int i=0 ; i<nbFrames ; i++) { 2045 const float v = itg(i); 2046 hverts(vtx, v); 2047 glClear(GL_COLOR_BUFFER_BIT); 2048 glColor4f(1-v, 1-v, 1-v, 1); 2049 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2050 hw.flip(screenBounds); 2051 } 2052 2053 glColorMask(1,1,1,1); 2054 glEnable(GL_SCISSOR_TEST); 2055 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 2056 glDeleteTextures(1, &tname); 2057 glDisable(GL_TEXTURE_2D); 2058 glDisable(GL_BLEND); 2059 return NO_ERROR; 2060} 2061 2062status_t SurfaceFlinger::electronBeamOnAnimationImplLocked() 2063{ 2064 status_t result = PERMISSION_DENIED; 2065 2066 if (!GLExtensions::getInstance().haveFramebufferObject()) 2067 return INVALID_OPERATION; 2068 2069 2070 // get screen geometry 2071 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 2072 const uint32_t hw_w = hw.getWidth(); 2073 const uint32_t hw_h = hw.getHeight(); 2074 const Region screenBounds(hw.bounds()); 2075 2076 GLfloat u, v; 2077 GLuint tname; 2078 result = renderScreenToTextureLocked(0, &tname, &u, &v); 2079 if (result != NO_ERROR) { 2080 return result; 2081 } 2082 2083 GLfloat vtx[8]; 2084 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 2085 glBindTexture(GL_TEXTURE_2D, tname); 2086 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 2087 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 2088 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 2089 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 2090 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 2091 glVertexPointer(2, GL_FLOAT, 0, vtx); 2092 2093 class s_curve_interpolator { 2094 const float nbFrames, s, v; 2095 public: 2096 s_curve_interpolator(int nbFrames, float s) 2097 : nbFrames(1.0f / (nbFrames-1)), s(s), 2098 v(1.0f + expf(-s + 0.5f*s)) { 2099 } 2100 float operator()(int f) { 2101 const float x = f * nbFrames; 2102 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 2103 } 2104 }; 2105 2106 class v_stretch { 2107 const GLfloat hw_w, hw_h; 2108 public: 2109 v_stretch(uint32_t hw_w, uint32_t hw_h) 2110 : hw_w(hw_w), hw_h(hw_h) { 2111 } 2112 void operator()(GLfloat* vtx, float v) { 2113 const GLfloat w = hw_w + (hw_w * v); 2114 const GLfloat h = hw_h - (hw_h * v); 2115 const GLfloat x = (hw_w - w) * 0.5f; 2116 const GLfloat y = (hw_h - h) * 0.5f; 2117 vtx[0] = x; vtx[1] = y; 2118 vtx[2] = x; vtx[3] = y + h; 2119 vtx[4] = x + w; vtx[5] = y + h; 2120 vtx[6] = x + w; vtx[7] = y; 2121 } 2122 }; 2123 2124 class h_stretch { 2125 const GLfloat hw_w, hw_h; 2126 public: 2127 h_stretch(uint32_t hw_w, uint32_t hw_h) 2128 : hw_w(hw_w), hw_h(hw_h) { 2129 } 2130 void operator()(GLfloat* vtx, float v) { 2131 const GLfloat w = hw_w - (hw_w * v); 2132 const GLfloat h = 1.0f; 2133 const GLfloat x = (hw_w - w) * 0.5f; 2134 const GLfloat y = (hw_h - h) * 0.5f; 2135 vtx[0] = x; vtx[1] = y; 2136 vtx[2] = x; vtx[3] = y + h; 2137 vtx[4] = x + w; vtx[5] = y + h; 2138 vtx[6] = x + w; vtx[7] = y; 2139 } 2140 }; 2141 2142 // the full animation is 12 frames 2143 int nbFrames = 8; 2144 s_curve_interpolator itr(nbFrames, 7.5f); 2145 s_curve_interpolator itg(nbFrames, 8.0f); 2146 s_curve_interpolator itb(nbFrames, 8.5f); 2147 2148 h_stretch hverts(hw_w, hw_h); 2149 glDisable(GL_BLEND); 2150 glDisable(GL_TEXTURE_2D); 2151 glColorMask(1,1,1,1); 2152 for (int i=nbFrames-1 ; i>=0 ; i--) { 2153 const float v = itg(i); 2154 hverts(vtx, v); 2155 glClear(GL_COLOR_BUFFER_BIT); 2156 glColor4f(1-v, 1-v, 1-v, 1); 2157 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2158 hw.flip(screenBounds); 2159 } 2160 2161 nbFrames = 4; 2162 v_stretch vverts(hw_w, hw_h); 2163 glEnable(GL_BLEND); 2164 glBlendFunc(GL_ONE, GL_ONE); 2165 for (int i=nbFrames-1 ; i>=0 ; i--) { 2166 float x, y, w, h; 2167 const float vr = itr(i); 2168 const float vg = itg(i); 2169 const float vb = itb(i); 2170 2171 // clear screen 2172 glColorMask(1,1,1,1); 2173 glClear(GL_COLOR_BUFFER_BIT); 2174 glEnable(GL_TEXTURE_2D); 2175 2176 // draw the red plane 2177 vverts(vtx, vr); 2178 glColorMask(1,0,0,1); 2179 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2180 2181 // draw the green plane 2182 vverts(vtx, vg); 2183 glColorMask(0,1,0,1); 2184 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2185 2186 // draw the blue plane 2187 vverts(vtx, vb); 2188 glColorMask(0,0,1,1); 2189 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2190 2191 hw.flip(screenBounds); 2192 } 2193 2194 glColorMask(1,1,1,1); 2195 glEnable(GL_SCISSOR_TEST); 2196 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 2197 glDeleteTextures(1, &tname); 2198 glDisable(GL_TEXTURE_2D); 2199 glDisable(GL_BLEND); 2200 2201 return NO_ERROR; 2202} 2203 2204// --------------------------------------------------------------------------- 2205 2206status_t SurfaceFlinger::turnElectronBeamOffImplLocked(int32_t mode) 2207{ 2208 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2209 if (!hw.canDraw()) { 2210 // we're already off 2211 return NO_ERROR; 2212 } 2213 2214 // turn off hwc while we're doing the animation 2215 hw.getHwComposer().disable(); 2216 // and make sure to turn it back on (if needed) next time we compose 2217 invalidateHwcGeometry(); 2218 2219 if (mode & ISurfaceComposer::eElectronBeamAnimationOff) { 2220 electronBeamOffAnimationImplLocked(); 2221 } 2222 2223 // always clear the whole screen at the end of the animation 2224 glClearColor(0,0,0,1); 2225 glDisable(GL_SCISSOR_TEST); 2226 glClear(GL_COLOR_BUFFER_BIT); 2227 glEnable(GL_SCISSOR_TEST); 2228 hw.flip( Region(hw.bounds()) ); 2229 2230 return NO_ERROR; 2231} 2232 2233status_t SurfaceFlinger::turnElectronBeamOff(int32_t mode) 2234{ 2235 class MessageTurnElectronBeamOff : public MessageBase { 2236 SurfaceFlinger* flinger; 2237 int32_t mode; 2238 status_t result; 2239 public: 2240 MessageTurnElectronBeamOff(SurfaceFlinger* flinger, int32_t mode) 2241 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2242 } 2243 status_t getResult() const { 2244 return result; 2245 } 2246 virtual bool handler() { 2247 Mutex::Autolock _l(flinger->mStateLock); 2248 result = flinger->turnElectronBeamOffImplLocked(mode); 2249 return true; 2250 } 2251 }; 2252 2253 sp<MessageBase> msg = new MessageTurnElectronBeamOff(this, mode); 2254 status_t res = postMessageSync(msg); 2255 if (res == NO_ERROR) { 2256 res = static_cast<MessageTurnElectronBeamOff*>( msg.get() )->getResult(); 2257 2258 // work-around: when the power-manager calls us we activate the 2259 // animation. eventually, the "on" animation will be called 2260 // by the power-manager itself 2261 mElectronBeamAnimationMode = mode; 2262 } 2263 return res; 2264} 2265 2266// --------------------------------------------------------------------------- 2267 2268status_t SurfaceFlinger::turnElectronBeamOnImplLocked(int32_t mode) 2269{ 2270 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2271 if (hw.canDraw()) { 2272 // we're already on 2273 return NO_ERROR; 2274 } 2275 if (mode & ISurfaceComposer::eElectronBeamAnimationOn) { 2276 electronBeamOnAnimationImplLocked(); 2277 } 2278 2279 // make sure to redraw the whole screen when the animation is done 2280 mDirtyRegion.set(hw.bounds()); 2281 signalTransaction(); 2282 2283 return NO_ERROR; 2284} 2285 2286status_t SurfaceFlinger::turnElectronBeamOn(int32_t mode) 2287{ 2288 class MessageTurnElectronBeamOn : public MessageBase { 2289 SurfaceFlinger* flinger; 2290 int32_t mode; 2291 status_t result; 2292 public: 2293 MessageTurnElectronBeamOn(SurfaceFlinger* flinger, int32_t mode) 2294 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2295 } 2296 status_t getResult() const { 2297 return result; 2298 } 2299 virtual bool handler() { 2300 Mutex::Autolock _l(flinger->mStateLock); 2301 result = flinger->turnElectronBeamOnImplLocked(mode); 2302 return true; 2303 } 2304 }; 2305 2306 postMessageAsync( new MessageTurnElectronBeamOn(this, mode) ); 2307 return NO_ERROR; 2308} 2309 2310// --------------------------------------------------------------------------- 2311 2312status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy, 2313 sp<IMemoryHeap>* heap, 2314 uint32_t* w, uint32_t* h, PixelFormat* f, 2315 uint32_t sw, uint32_t sh, 2316 uint32_t minLayerZ, uint32_t maxLayerZ) 2317{ 2318 status_t result = PERMISSION_DENIED; 2319 2320 // only one display supported for now 2321 if (CC_UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2322 return BAD_VALUE; 2323 2324 if (!GLExtensions::getInstance().haveFramebufferObject()) 2325 return INVALID_OPERATION; 2326 2327 // get screen geometry 2328 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 2329 const uint32_t hw_w = hw.getWidth(); 2330 const uint32_t hw_h = hw.getHeight(); 2331 2332 if ((sw > hw_w) || (sh > hw_h)) 2333 return BAD_VALUE; 2334 2335 sw = (!sw) ? hw_w : sw; 2336 sh = (!sh) ? hw_h : sh; 2337 const size_t size = sw * sh * 4; 2338 2339 //ALOGD("screenshot: sw=%d, sh=%d, minZ=%d, maxZ=%d", 2340 // sw, sh, minLayerZ, maxLayerZ); 2341 2342 // make sure to clear all GL error flags 2343 while ( glGetError() != GL_NO_ERROR ) ; 2344 2345 // create a FBO 2346 GLuint name, tname; 2347 glGenRenderbuffersOES(1, &tname); 2348 glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname); 2349 glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh); 2350 glGenFramebuffersOES(1, &name); 2351 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 2352 glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, 2353 GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname); 2354 2355 GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES); 2356 2357 if (status == GL_FRAMEBUFFER_COMPLETE_OES) { 2358 2359 // invert everything, b/c glReadPixel() below will invert the FB 2360 glViewport(0, 0, sw, sh); 2361 glScissor(0, 0, sw, sh); 2362 glEnable(GL_SCISSOR_TEST); 2363 glMatrixMode(GL_PROJECTION); 2364 glPushMatrix(); 2365 glLoadIdentity(); 2366 glOrthof(0, hw_w, hw_h, 0, 0, 1); 2367 glMatrixMode(GL_MODELVIEW); 2368 2369 // redraw the screen entirely... 2370 glClearColor(0,0,0,1); 2371 glClear(GL_COLOR_BUFFER_BIT); 2372 2373 const LayerVector& layers(mDrawingState.layersSortedByZ); 2374 const size_t count = layers.size(); 2375 for (size_t i=0 ; i<count ; ++i) { 2376 const sp<LayerBase>& layer(layers[i]); 2377 const uint32_t flags = layer->drawingState().flags; 2378 if (!(flags & ISurfaceComposer::eLayerHidden)) { 2379 const uint32_t z = layer->drawingState().z; 2380 if (z >= minLayerZ && z <= maxLayerZ) { 2381 layer->drawForSreenShot(); 2382 } 2383 } 2384 } 2385 2386 // XXX: this is needed on tegra 2387 glEnable(GL_SCISSOR_TEST); 2388 glScissor(0, 0, sw, sh); 2389 2390 // check for errors and return screen capture 2391 if (glGetError() != GL_NO_ERROR) { 2392 // error while rendering 2393 result = INVALID_OPERATION; 2394 } else { 2395 // allocate shared memory large enough to hold the 2396 // screen capture 2397 sp<MemoryHeapBase> base( 2398 new MemoryHeapBase(size, 0, "screen-capture") ); 2399 void* const ptr = base->getBase(); 2400 if (ptr) { 2401 // capture the screen with glReadPixels() 2402 glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr); 2403 if (glGetError() == GL_NO_ERROR) { 2404 *heap = base; 2405 *w = sw; 2406 *h = sh; 2407 *f = PIXEL_FORMAT_RGBA_8888; 2408 result = NO_ERROR; 2409 } 2410 } else { 2411 result = NO_MEMORY; 2412 } 2413 } 2414 glEnable(GL_SCISSOR_TEST); 2415 glViewport(0, 0, hw_w, hw_h); 2416 glMatrixMode(GL_PROJECTION); 2417 glPopMatrix(); 2418 glMatrixMode(GL_MODELVIEW); 2419 } else { 2420 result = BAD_VALUE; 2421 } 2422 2423 // release FBO resources 2424 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 2425 glDeleteRenderbuffersOES(1, &tname); 2426 glDeleteFramebuffersOES(1, &name); 2427 2428 hw.compositionComplete(); 2429 2430 // ALOGD("screenshot: result = %s", result<0 ? strerror(result) : "OK"); 2431 2432 return result; 2433} 2434 2435 2436status_t SurfaceFlinger::captureScreen(DisplayID dpy, 2437 sp<IMemoryHeap>* heap, 2438 uint32_t* width, uint32_t* height, PixelFormat* format, 2439 uint32_t sw, uint32_t sh, 2440 uint32_t minLayerZ, uint32_t maxLayerZ) 2441{ 2442 // only one display supported for now 2443 if (CC_UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2444 return BAD_VALUE; 2445 2446 if (!GLExtensions::getInstance().haveFramebufferObject()) 2447 return INVALID_OPERATION; 2448 2449 class MessageCaptureScreen : public MessageBase { 2450 SurfaceFlinger* flinger; 2451 DisplayID dpy; 2452 sp<IMemoryHeap>* heap; 2453 uint32_t* w; 2454 uint32_t* h; 2455 PixelFormat* f; 2456 uint32_t sw; 2457 uint32_t sh; 2458 uint32_t minLayerZ; 2459 uint32_t maxLayerZ; 2460 status_t result; 2461 public: 2462 MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy, 2463 sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f, 2464 uint32_t sw, uint32_t sh, 2465 uint32_t minLayerZ, uint32_t maxLayerZ) 2466 : flinger(flinger), dpy(dpy), 2467 heap(heap), w(w), h(h), f(f), sw(sw), sh(sh), 2468 minLayerZ(minLayerZ), maxLayerZ(maxLayerZ), 2469 result(PERMISSION_DENIED) 2470 { 2471 } 2472 status_t getResult() const { 2473 return result; 2474 } 2475 virtual bool handler() { 2476 Mutex::Autolock _l(flinger->mStateLock); 2477 2478 // if we have secure windows, never allow the screen capture 2479 if (flinger->mSecureFrameBuffer) 2480 return true; 2481 2482 result = flinger->captureScreenImplLocked(dpy, 2483 heap, w, h, f, sw, sh, minLayerZ, maxLayerZ); 2484 2485 return true; 2486 } 2487 }; 2488 2489 sp<MessageBase> msg = new MessageCaptureScreen(this, 2490 dpy, heap, width, height, format, sw, sh, minLayerZ, maxLayerZ); 2491 status_t res = postMessageSync(msg); 2492 if (res == NO_ERROR) { 2493 res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult(); 2494 } 2495 return res; 2496} 2497 2498// --------------------------------------------------------------------------- 2499 2500sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const 2501{ 2502 sp<Layer> result; 2503 Mutex::Autolock _l(mStateLock); 2504 result = mLayerMap.valueFor( sur->asBinder() ).promote(); 2505 return result; 2506} 2507 2508// --------------------------------------------------------------------------- 2509 2510Client::Client(const sp<SurfaceFlinger>& flinger) 2511 : mFlinger(flinger), mNameGenerator(1) 2512{ 2513} 2514 2515Client::~Client() 2516{ 2517 const size_t count = mLayers.size(); 2518 for (size_t i=0 ; i<count ; i++) { 2519 sp<LayerBaseClient> layer(mLayers.valueAt(i).promote()); 2520 if (layer != 0) { 2521 mFlinger->removeLayer(layer); 2522 } 2523 } 2524} 2525 2526status_t Client::initCheck() const { 2527 return NO_ERROR; 2528} 2529 2530size_t Client::attachLayer(const sp<LayerBaseClient>& layer) 2531{ 2532 Mutex::Autolock _l(mLock); 2533 size_t name = mNameGenerator++; 2534 mLayers.add(name, layer); 2535 return name; 2536} 2537 2538void Client::detachLayer(const LayerBaseClient* layer) 2539{ 2540 Mutex::Autolock _l(mLock); 2541 // we do a linear search here, because this doesn't happen often 2542 const size_t count = mLayers.size(); 2543 for (size_t i=0 ; i<count ; i++) { 2544 if (mLayers.valueAt(i) == layer) { 2545 mLayers.removeItemsAt(i, 1); 2546 break; 2547 } 2548 } 2549} 2550sp<LayerBaseClient> Client::getLayerUser(int32_t i) const 2551{ 2552 Mutex::Autolock _l(mLock); 2553 sp<LayerBaseClient> lbc; 2554 wp<LayerBaseClient> layer(mLayers.valueFor(i)); 2555 if (layer != 0) { 2556 lbc = layer.promote(); 2557 ALOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i)); 2558 } 2559 return lbc; 2560} 2561 2562 2563status_t Client::onTransact( 2564 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 2565{ 2566 // these must be checked 2567 IPCThreadState* ipc = IPCThreadState::self(); 2568 const int pid = ipc->getCallingPid(); 2569 const int uid = ipc->getCallingUid(); 2570 const int self_pid = getpid(); 2571 if (CC_UNLIKELY(pid != self_pid && uid != AID_GRAPHICS && uid != 0)) { 2572 // we're called from a different process, do the real check 2573 if (!PermissionCache::checkCallingPermission(sAccessSurfaceFlinger)) 2574 { 2575 ALOGE("Permission Denial: " 2576 "can't openGlobalTransaction pid=%d, uid=%d", pid, uid); 2577 return PERMISSION_DENIED; 2578 } 2579 } 2580 return BnSurfaceComposerClient::onTransact(code, data, reply, flags); 2581} 2582 2583 2584sp<ISurface> Client::createSurface( 2585 ISurfaceComposerClient::surface_data_t* params, 2586 const String8& name, 2587 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2588 uint32_t flags) 2589{ 2590 /* 2591 * createSurface must be called from the GL thread so that it can 2592 * have access to the GL context. 2593 */ 2594 2595 class MessageCreateSurface : public MessageBase { 2596 sp<ISurface> result; 2597 SurfaceFlinger* flinger; 2598 ISurfaceComposerClient::surface_data_t* params; 2599 Client* client; 2600 const String8& name; 2601 DisplayID display; 2602 uint32_t w, h; 2603 PixelFormat format; 2604 uint32_t flags; 2605 public: 2606 MessageCreateSurface(SurfaceFlinger* flinger, 2607 ISurfaceComposerClient::surface_data_t* params, 2608 const String8& name, Client* client, 2609 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2610 uint32_t flags) 2611 : flinger(flinger), params(params), client(client), name(name), 2612 display(display), w(w), h(h), format(format), flags(flags) 2613 { 2614 } 2615 sp<ISurface> getResult() const { return result; } 2616 virtual bool handler() { 2617 result = flinger->createSurface(params, name, client, 2618 display, w, h, format, flags); 2619 return true; 2620 } 2621 }; 2622 2623 sp<MessageBase> msg = new MessageCreateSurface(mFlinger.get(), 2624 params, name, this, display, w, h, format, flags); 2625 mFlinger->postMessageSync(msg); 2626 return static_cast<MessageCreateSurface*>( msg.get() )->getResult(); 2627} 2628status_t Client::destroySurface(SurfaceID sid) { 2629 return mFlinger->removeSurface(this, sid); 2630} 2631 2632// --------------------------------------------------------------------------- 2633 2634GraphicBufferAlloc::GraphicBufferAlloc() {} 2635 2636GraphicBufferAlloc::~GraphicBufferAlloc() {} 2637 2638sp<GraphicBuffer> GraphicBufferAlloc::createGraphicBuffer(uint32_t w, uint32_t h, 2639 PixelFormat format, uint32_t usage, status_t* error) { 2640 sp<GraphicBuffer> graphicBuffer(new GraphicBuffer(w, h, format, usage)); 2641 status_t err = graphicBuffer->initCheck(); 2642 *error = err; 2643 if (err != 0 || graphicBuffer->handle == 0) { 2644 if (err == NO_MEMORY) { 2645 GraphicBuffer::dumpAllocationsToSystemLog(); 2646 } 2647 ALOGE("GraphicBufferAlloc::createGraphicBuffer(w=%d, h=%d) " 2648 "failed (%s), handle=%p", 2649 w, h, strerror(-err), graphicBuffer->handle); 2650 return 0; 2651 } 2652 return graphicBuffer; 2653} 2654 2655// --------------------------------------------------------------------------- 2656 2657GraphicPlane::GraphicPlane() 2658 : mHw(0) 2659{ 2660} 2661 2662GraphicPlane::~GraphicPlane() { 2663 delete mHw; 2664} 2665 2666bool GraphicPlane::initialized() const { 2667 return mHw ? true : false; 2668} 2669 2670int GraphicPlane::getWidth() const { 2671 return mWidth; 2672} 2673 2674int GraphicPlane::getHeight() const { 2675 return mHeight; 2676} 2677 2678void GraphicPlane::setDisplayHardware(DisplayHardware *hw) 2679{ 2680 mHw = hw; 2681 2682 // initialize the display orientation transform. 2683 // it's a constant that should come from the display driver. 2684 int displayOrientation = ISurfaceComposer::eOrientationDefault; 2685 char property[PROPERTY_VALUE_MAX]; 2686 if (property_get("ro.sf.hwrotation", property, NULL) > 0) { 2687 //displayOrientation 2688 switch (atoi(property)) { 2689 case 90: 2690 displayOrientation = ISurfaceComposer::eOrientation90; 2691 break; 2692 case 270: 2693 displayOrientation = ISurfaceComposer::eOrientation270; 2694 break; 2695 } 2696 } 2697 2698 const float w = hw->getWidth(); 2699 const float h = hw->getHeight(); 2700 GraphicPlane::orientationToTransfrom(displayOrientation, w, h, 2701 &mDisplayTransform); 2702 if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) { 2703 mDisplayWidth = h; 2704 mDisplayHeight = w; 2705 } else { 2706 mDisplayWidth = w; 2707 mDisplayHeight = h; 2708 } 2709 2710 setOrientation(ISurfaceComposer::eOrientationDefault); 2711} 2712 2713status_t GraphicPlane::orientationToTransfrom( 2714 int orientation, int w, int h, Transform* tr) 2715{ 2716 uint32_t flags = 0; 2717 switch (orientation) { 2718 case ISurfaceComposer::eOrientationDefault: 2719 flags = Transform::ROT_0; 2720 break; 2721 case ISurfaceComposer::eOrientation90: 2722 flags = Transform::ROT_90; 2723 break; 2724 case ISurfaceComposer::eOrientation180: 2725 flags = Transform::ROT_180; 2726 break; 2727 case ISurfaceComposer::eOrientation270: 2728 flags = Transform::ROT_270; 2729 break; 2730 default: 2731 return BAD_VALUE; 2732 } 2733 tr->set(flags, w, h); 2734 return NO_ERROR; 2735} 2736 2737status_t GraphicPlane::setOrientation(int orientation) 2738{ 2739 // If the rotation can be handled in hardware, this is where 2740 // the magic should happen. 2741 2742 const DisplayHardware& hw(displayHardware()); 2743 const float w = mDisplayWidth; 2744 const float h = mDisplayHeight; 2745 mWidth = int(w); 2746 mHeight = int(h); 2747 2748 Transform orientationTransform; 2749 GraphicPlane::orientationToTransfrom(orientation, w, h, 2750 &orientationTransform); 2751 if (orientation & ISurfaceComposer::eOrientationSwapMask) { 2752 mWidth = int(h); 2753 mHeight = int(w); 2754 } 2755 2756 mOrientation = orientation; 2757 mGlobalTransform = mDisplayTransform * orientationTransform; 2758 return NO_ERROR; 2759} 2760 2761const DisplayHardware& GraphicPlane::displayHardware() const { 2762 return *mHw; 2763} 2764 2765DisplayHardware& GraphicPlane::editDisplayHardware() { 2766 return *mHw; 2767} 2768 2769const Transform& GraphicPlane::transform() const { 2770 return mGlobalTransform; 2771} 2772 2773EGLDisplay GraphicPlane::getEGLDisplay() const { 2774 return mHw->getEGLDisplay(); 2775} 2776 2777// --------------------------------------------------------------------------- 2778 2779}; // namespace android 2780