SurfaceFlinger.cpp revision ad8d13c8858b33e3efef42086875c0b0836d2296
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 128SurfaceFlinger::~SurfaceFlinger() 129{ 130 glDeleteTextures(1, &mWormholeTexName); 131} 132 133sp<IMemoryHeap> SurfaceFlinger::getCblk() const 134{ 135 return mServerHeap; 136} 137 138sp<ISurfaceComposerClient> SurfaceFlinger::createConnection() 139{ 140 sp<ISurfaceComposerClient> bclient; 141 sp<Client> client(new Client(this)); 142 status_t err = client->initCheck(); 143 if (err == NO_ERROR) { 144 bclient = client; 145 } 146 return bclient; 147} 148 149sp<IGraphicBufferAlloc> SurfaceFlinger::createGraphicBufferAlloc() 150{ 151 sp<GraphicBufferAlloc> gba(new GraphicBufferAlloc()); 152 return gba; 153} 154 155const GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) const 156{ 157 ALOGE_IF(uint32_t(dpy) >= DISPLAY_COUNT, "Invalid DisplayID %d", dpy); 158 const GraphicPlane& plane(mGraphicPlanes[dpy]); 159 return plane; 160} 161 162GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) 163{ 164 return const_cast<GraphicPlane&>( 165 const_cast<SurfaceFlinger const *>(this)->graphicPlane(dpy)); 166} 167 168void SurfaceFlinger::bootFinished() 169{ 170 const nsecs_t now = systemTime(); 171 const nsecs_t duration = now - mBootTime; 172 ALOGI("Boot is finished (%ld ms)", long(ns2ms(duration)) ); 173 mBootFinished = true; 174 175 // wait patiently for the window manager death 176 const String16 name("window"); 177 sp<IBinder> window(defaultServiceManager()->getService(name)); 178 if (window != 0) { 179 window->linkToDeath(this); 180 } 181 182 // stop boot animation 183 property_set("ctl.stop", "bootanim"); 184} 185 186void SurfaceFlinger::binderDied(const wp<IBinder>& who) 187{ 188 // the window manager died on us. prepare its eulogy. 189 190 // reset screen orientation 191 Vector<ComposerState> state; 192 setTransactionState(state, eOrientationDefault, 0); 193 194 // restart the boot-animation 195 property_set("ctl.start", "bootanim"); 196} 197 198void SurfaceFlinger::onFirstRef() 199{ 200 run("SurfaceFlinger", PRIORITY_URGENT_DISPLAY); 201 202 // Wait for the main thread to be done with its initialization 203 mReadyToRunBarrier.wait(); 204} 205 206static inline uint16_t pack565(int r, int g, int b) { 207 return (r<<11)|(g<<5)|b; 208} 209 210status_t SurfaceFlinger::readyToRun() 211{ 212 ALOGI( "SurfaceFlinger's main thread ready to run. " 213 "Initializing graphics H/W..."); 214 215 // we only support one display currently 216 int dpy = 0; 217 218 { 219 // initialize the main display 220 GraphicPlane& plane(graphicPlane(dpy)); 221 DisplayHardware* const hw = new DisplayHardware(this, dpy); 222 plane.setDisplayHardware(hw); 223 } 224 225 // create the shared control-block 226 mServerHeap = new MemoryHeapBase(4096, 227 MemoryHeapBase::READ_ONLY, "SurfaceFlinger read-only heap"); 228 ALOGE_IF(mServerHeap==0, "can't create shared memory dealer"); 229 230 mServerCblk = static_cast<surface_flinger_cblk_t*>(mServerHeap->getBase()); 231 ALOGE_IF(mServerCblk==0, "can't get to shared control block's address"); 232 233 new(mServerCblk) surface_flinger_cblk_t; 234 235 // initialize primary screen 236 // (other display should be initialized in the same manner, but 237 // asynchronously, as they could come and go. None of this is supported 238 // yet). 239 const GraphicPlane& plane(graphicPlane(dpy)); 240 const DisplayHardware& hw = plane.displayHardware(); 241 const uint32_t w = hw.getWidth(); 242 const uint32_t h = hw.getHeight(); 243 const uint32_t f = hw.getFormat(); 244 hw.makeCurrent(); 245 246 // initialize the shared control block 247 mServerCblk->connected |= 1<<dpy; 248 display_cblk_t* dcblk = mServerCblk->displays + dpy; 249 memset(dcblk, 0, sizeof(display_cblk_t)); 250 dcblk->w = plane.getWidth(); 251 dcblk->h = plane.getHeight(); 252 dcblk->format = f; 253 dcblk->orientation = ISurfaceComposer::eOrientationDefault; 254 dcblk->xdpi = hw.getDpiX(); 255 dcblk->ydpi = hw.getDpiY(); 256 dcblk->fps = hw.getRefreshRate(); 257 dcblk->density = hw.getDensity(); 258 259 // Initialize OpenGL|ES 260 glPixelStorei(GL_UNPACK_ALIGNMENT, 4); 261 glPixelStorei(GL_PACK_ALIGNMENT, 4); 262 glEnableClientState(GL_VERTEX_ARRAY); 263 glEnable(GL_SCISSOR_TEST); 264 glShadeModel(GL_FLAT); 265 glDisable(GL_DITHER); 266 glDisable(GL_CULL_FACE); 267 268 const uint16_t g0 = pack565(0x0F,0x1F,0x0F); 269 const uint16_t g1 = pack565(0x17,0x2f,0x17); 270 const uint16_t wormholeTexData[4] = { g0, g1, g1, g0 }; 271 glGenTextures(1, &mWormholeTexName); 272 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 273 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 274 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 275 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 276 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 277 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, 278 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, wormholeTexData); 279 280 const uint16_t protTexData[] = { pack565(0x03, 0x03, 0x03) }; 281 glGenTextures(1, &mProtectedTexName); 282 glBindTexture(GL_TEXTURE_2D, mProtectedTexName); 283 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 284 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 285 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 286 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 287 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1, 1, 0, 288 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, protTexData); 289 290 glViewport(0, 0, w, h); 291 glMatrixMode(GL_PROJECTION); 292 glLoadIdentity(); 293 // put the origin in the left-bottom corner 294 glOrthof(0, w, 0, h, 0, 1); // l=0, r=w ; b=0, t=h 295 296 297 // start the EventThread 298 mEventThread = new EventThread(this); 299 300 /* 301 * We're now ready to accept clients... 302 */ 303 304 mReadyToRunBarrier.open(); 305 306 // start boot animation 307 property_set("ctl.start", "bootanim"); 308 309 return NO_ERROR; 310} 311 312// ---------------------------------------------------------------------------- 313#if 0 314#pragma mark - 315#pragma mark Events Handler 316#endif 317 318void SurfaceFlinger::waitForEvent() { 319 mEventQueue.waitMessage(); 320} 321 322void SurfaceFlinger::signalEvent() { 323 mEventQueue.invalidate(); 324} 325 326status_t SurfaceFlinger::postMessageAsync(const sp<MessageBase>& msg, 327 nsecs_t reltime, uint32_t flags) { 328 return mEventQueue.postMessage(msg, reltime); 329} 330 331status_t SurfaceFlinger::postMessageSync(const sp<MessageBase>& msg, 332 nsecs_t reltime, uint32_t flags) { 333 status_t res = mEventQueue.postMessage(msg, reltime); 334 if (res == NO_ERROR) { 335 msg->wait(); 336 } 337 return res; 338} 339 340// ---------------------------------------------------------------------------- 341 342bool SurfaceFlinger::authenticateSurfaceTexture( 343 const sp<ISurfaceTexture>& surfaceTexture) const { 344 Mutex::Autolock _l(mStateLock); 345 sp<IBinder> surfaceTextureBinder(surfaceTexture->asBinder()); 346 347 // Check the visible layer list for the ISurface 348 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 349 size_t count = currentLayers.size(); 350 for (size_t i=0 ; i<count ; i++) { 351 const sp<LayerBase>& layer(currentLayers[i]); 352 sp<LayerBaseClient> lbc(layer->getLayerBaseClient()); 353 if (lbc != NULL) { 354 wp<IBinder> lbcBinder = lbc->getSurfaceTextureBinder(); 355 if (lbcBinder == surfaceTextureBinder) { 356 return true; 357 } 358 } 359 } 360 361 // Check the layers in the purgatory. This check is here so that if a 362 // SurfaceTexture gets destroyed before all the clients are done using it, 363 // the error will not be reported as "surface XYZ is not authenticated", but 364 // will instead fail later on when the client tries to use the surface, 365 // which should be reported as "surface XYZ returned an -ENODEV". The 366 // purgatorized layers are no less authentic than the visible ones, so this 367 // should not cause any harm. 368 size_t purgatorySize = mLayerPurgatory.size(); 369 for (size_t i=0 ; i<purgatorySize ; i++) { 370 const sp<LayerBase>& layer(mLayerPurgatory.itemAt(i)); 371 sp<LayerBaseClient> lbc(layer->getLayerBaseClient()); 372 if (lbc != NULL) { 373 wp<IBinder> lbcBinder = lbc->getSurfaceTextureBinder(); 374 if (lbcBinder == surfaceTextureBinder) { 375 return true; 376 } 377 } 378 } 379 380 return false; 381} 382 383// ---------------------------------------------------------------------------- 384 385sp<IDisplayEventConnection> SurfaceFlinger::createDisplayEventConnection() { 386 sp<DisplayEventConnection> result(new DisplayEventConnection(mEventThread)); 387 return result; 388} 389 390// ---------------------------------------------------------------------------- 391#if 0 392#pragma mark - 393#pragma mark Main loop 394#endif 395 396bool SurfaceFlinger::threadLoop() 397{ 398 waitForEvent(); 399 400 // check for transactions 401 if (CC_UNLIKELY(mConsoleSignals)) { 402 handleConsoleEvents(); 403 } 404 405 // if we're in a global transaction, don't do anything. 406 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 407 uint32_t transactionFlags = peekTransactionFlags(mask); 408 if (CC_UNLIKELY(transactionFlags)) { 409 handleTransaction(transactionFlags); 410 } 411 412 // post surfaces (if needed) 413 handlePageFlip(); 414 415 if (mDirtyRegion.isEmpty()) { 416 // nothing new to do. 417 return true; 418 } 419 420 if (CC_UNLIKELY(mHwWorkListDirty)) { 421 // build the h/w work list 422 handleWorkList(); 423 } 424 425 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 426 if (CC_LIKELY(hw.canDraw())) { 427 // repaint the framebuffer (if needed) 428 handleRepaint(); 429 // inform the h/w that we're done compositing 430 hw.compositionComplete(); 431 postFramebuffer(); 432 } else { 433 // pretend we did the post 434 hw.compositionComplete(); 435 hw.waitForRefresh(); 436 } 437 return true; 438} 439 440void SurfaceFlinger::postFramebuffer() 441{ 442 // this should never happen. we do the flip anyways so we don't 443 // risk to cause a deadlock with hwc 444 ALOGW_IF(mSwapRegion.isEmpty(), "mSwapRegion is empty"); 445 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 446 const nsecs_t now = systemTime(); 447 mDebugInSwapBuffers = now; 448 hw.flip(mSwapRegion); 449 450 size_t numLayers = mVisibleLayersSortedByZ.size(); 451 for (size_t i = 0; i < numLayers; i++) { 452 mVisibleLayersSortedByZ[i]->onLayerDisplayed(); 453 } 454 455 mLastSwapBufferTime = systemTime() - now; 456 mDebugInSwapBuffers = 0; 457 mSwapRegion.clear(); 458} 459 460void SurfaceFlinger::handleConsoleEvents() 461{ 462 // something to do with the console 463 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 464 465 int what = android_atomic_and(0, &mConsoleSignals); 466 if (what & eConsoleAcquired) { 467 hw.acquireScreen(); 468 // this is a temporary work-around, eventually this should be called 469 // by the power-manager 470 SurfaceFlinger::turnElectronBeamOn(mElectronBeamAnimationMode); 471 } 472 473 if (what & eConsoleReleased) { 474 if (hw.isScreenAcquired()) { 475 hw.releaseScreen(); 476 } 477 } 478 479 mDirtyRegion.set(hw.bounds()); 480} 481 482void SurfaceFlinger::handleTransaction(uint32_t transactionFlags) 483{ 484 Mutex::Autolock _l(mStateLock); 485 const nsecs_t now = systemTime(); 486 mDebugInTransaction = now; 487 488 // Here we're guaranteed that some transaction flags are set 489 // so we can call handleTransactionLocked() unconditionally. 490 // We call getTransactionFlags(), which will also clear the flags, 491 // with mStateLock held to guarantee that mCurrentState won't change 492 // until the transaction is committed. 493 494 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 495 transactionFlags = getTransactionFlags(mask); 496 handleTransactionLocked(transactionFlags); 497 498 mLastTransactionTime = systemTime() - now; 499 mDebugInTransaction = 0; 500 invalidateHwcGeometry(); 501 // here the transaction has been committed 502} 503 504void SurfaceFlinger::handleTransactionLocked(uint32_t transactionFlags) 505{ 506 const LayerVector& currentLayers(mCurrentState.layersSortedByZ); 507 const size_t count = currentLayers.size(); 508 509 /* 510 * Traversal of the children 511 * (perform the transaction for each of them if needed) 512 */ 513 514 const bool layersNeedTransaction = transactionFlags & eTraversalNeeded; 515 if (layersNeedTransaction) { 516 for (size_t i=0 ; i<count ; i++) { 517 const sp<LayerBase>& layer = currentLayers[i]; 518 uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded); 519 if (!trFlags) continue; 520 521 const uint32_t flags = layer->doTransaction(0); 522 if (flags & Layer::eVisibleRegion) 523 mVisibleRegionsDirty = true; 524 } 525 } 526 527 /* 528 * Perform our own transaction if needed 529 */ 530 531 if (transactionFlags & eTransactionNeeded) { 532 if (mCurrentState.orientation != mDrawingState.orientation) { 533 // the orientation has changed, recompute all visible regions 534 // and invalidate everything. 535 536 const int dpy = 0; 537 const int orientation = mCurrentState.orientation; 538 // Currently unused: const uint32_t flags = mCurrentState.orientationFlags; 539 GraphicPlane& plane(graphicPlane(dpy)); 540 plane.setOrientation(orientation); 541 542 // update the shared control block 543 const DisplayHardware& hw(plane.displayHardware()); 544 volatile display_cblk_t* dcblk = mServerCblk->displays + dpy; 545 dcblk->orientation = orientation; 546 dcblk->w = plane.getWidth(); 547 dcblk->h = plane.getHeight(); 548 549 mVisibleRegionsDirty = true; 550 mDirtyRegion.set(hw.bounds()); 551 } 552 553 if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) { 554 // layers have been added 555 mVisibleRegionsDirty = true; 556 } 557 558 // some layers might have been removed, so 559 // we need to update the regions they're exposing. 560 if (mLayersRemoved) { 561 mLayersRemoved = false; 562 mVisibleRegionsDirty = true; 563 const LayerVector& previousLayers(mDrawingState.layersSortedByZ); 564 const size_t count = previousLayers.size(); 565 for (size_t i=0 ; i<count ; i++) { 566 const sp<LayerBase>& layer(previousLayers[i]); 567 if (currentLayers.indexOf( layer ) < 0) { 568 // this layer is not visible anymore 569 mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen); 570 } 571 } 572 } 573 } 574 575 commitTransaction(); 576} 577 578void SurfaceFlinger::computeVisibleRegions( 579 const LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion) 580{ 581 const GraphicPlane& plane(graphicPlane(0)); 582 const Transform& planeTransform(plane.transform()); 583 const DisplayHardware& hw(plane.displayHardware()); 584 const Region screenRegion(hw.bounds()); 585 586 Region aboveOpaqueLayers; 587 Region aboveCoveredLayers; 588 Region dirty; 589 590 bool secureFrameBuffer = false; 591 592 size_t i = currentLayers.size(); 593 while (i--) { 594 const sp<LayerBase>& layer = currentLayers[i]; 595 layer->validateVisibility(planeTransform); 596 597 // start with the whole surface at its current location 598 const Layer::State& s(layer->drawingState()); 599 600 /* 601 * opaqueRegion: area of a surface that is fully opaque. 602 */ 603 Region opaqueRegion; 604 605 /* 606 * visibleRegion: area of a surface that is visible on screen 607 * and not fully transparent. This is essentially the layer's 608 * footprint minus the opaque regions above it. 609 * Areas covered by a translucent surface are considered visible. 610 */ 611 Region visibleRegion; 612 613 /* 614 * coveredRegion: area of a surface that is covered by all 615 * visible regions above it (which includes the translucent areas). 616 */ 617 Region coveredRegion; 618 619 620 // handle hidden surfaces by setting the visible region to empty 621 if (CC_LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) { 622 const bool translucent = !layer->isOpaque(); 623 const Rect bounds(layer->visibleBounds()); 624 visibleRegion.set(bounds); 625 visibleRegion.andSelf(screenRegion); 626 if (!visibleRegion.isEmpty()) { 627 // Remove the transparent area from the visible region 628 if (translucent) { 629 visibleRegion.subtractSelf(layer->transparentRegionScreen); 630 } 631 632 // compute the opaque region 633 const int32_t layerOrientation = layer->getOrientation(); 634 if (s.alpha==255 && !translucent && 635 ((layerOrientation & Transform::ROT_INVALID) == false)) { 636 // the opaque region is the layer's footprint 637 opaqueRegion = visibleRegion; 638 } 639 } 640 } 641 642 // Clip the covered region to the visible region 643 coveredRegion = aboveCoveredLayers.intersect(visibleRegion); 644 645 // Update aboveCoveredLayers for next (lower) layer 646 aboveCoveredLayers.orSelf(visibleRegion); 647 648 // subtract the opaque region covered by the layers above us 649 visibleRegion.subtractSelf(aboveOpaqueLayers); 650 651 // compute this layer's dirty region 652 if (layer->contentDirty) { 653 // we need to invalidate the whole region 654 dirty = visibleRegion; 655 // as well, as the old visible region 656 dirty.orSelf(layer->visibleRegionScreen); 657 layer->contentDirty = false; 658 } else { 659 /* compute the exposed region: 660 * the exposed region consists of two components: 661 * 1) what's VISIBLE now and was COVERED before 662 * 2) what's EXPOSED now less what was EXPOSED before 663 * 664 * note that (1) is conservative, we start with the whole 665 * visible region but only keep what used to be covered by 666 * something -- which mean it may have been exposed. 667 * 668 * (2) handles areas that were not covered by anything but got 669 * exposed because of a resize. 670 */ 671 const Region newExposed = visibleRegion - coveredRegion; 672 const Region oldVisibleRegion = layer->visibleRegionScreen; 673 const Region oldCoveredRegion = layer->coveredRegionScreen; 674 const Region oldExposed = oldVisibleRegion - oldCoveredRegion; 675 dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed); 676 } 677 dirty.subtractSelf(aboveOpaqueLayers); 678 679 // accumulate to the screen dirty region 680 dirtyRegion.orSelf(dirty); 681 682 // Update aboveOpaqueLayers for next (lower) layer 683 aboveOpaqueLayers.orSelf(opaqueRegion); 684 685 // Store the visible region is screen space 686 layer->setVisibleRegion(visibleRegion); 687 layer->setCoveredRegion(coveredRegion); 688 689 // If a secure layer is partially visible, lock-down the screen! 690 if (layer->isSecure() && !visibleRegion.isEmpty()) { 691 secureFrameBuffer = true; 692 } 693 } 694 695 // invalidate the areas where a layer was removed 696 dirtyRegion.orSelf(mDirtyRegionRemovedLayer); 697 mDirtyRegionRemovedLayer.clear(); 698 699 mSecureFrameBuffer = secureFrameBuffer; 700 opaqueRegion = aboveOpaqueLayers; 701} 702 703 704void SurfaceFlinger::commitTransaction() 705{ 706 if (!mLayersPendingRemoval.isEmpty()) { 707 // Notify removed layers now that they can't be drawn from 708 for (size_t i = 0; i < mLayersPendingRemoval.size(); i++) { 709 mLayersPendingRemoval[i]->onRemoved(); 710 } 711 mLayersPendingRemoval.clear(); 712 } 713 714 mDrawingState = mCurrentState; 715 mTransationPending = false; 716 mTransactionCV.broadcast(); 717} 718 719void SurfaceFlinger::handlePageFlip() 720{ 721 bool visibleRegions = mVisibleRegionsDirty; 722 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 723 visibleRegions |= lockPageFlip(currentLayers); 724 725 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 726 const Region screenRegion(hw.bounds()); 727 if (visibleRegions) { 728 Region opaqueRegion; 729 computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion); 730 731 /* 732 * rebuild the visible layer list 733 */ 734 const size_t count = currentLayers.size(); 735 mVisibleLayersSortedByZ.clear(); 736 mVisibleLayersSortedByZ.setCapacity(count); 737 for (size_t i=0 ; i<count ; i++) { 738 if (!currentLayers[i]->visibleRegionScreen.isEmpty()) 739 mVisibleLayersSortedByZ.add(currentLayers[i]); 740 } 741 742 mWormholeRegion = screenRegion.subtract(opaqueRegion); 743 mVisibleRegionsDirty = false; 744 invalidateHwcGeometry(); 745 } 746 747 unlockPageFlip(currentLayers); 748 749 mDirtyRegion.orSelf(getAndClearInvalidateRegion()); 750 mDirtyRegion.andSelf(screenRegion); 751} 752 753void SurfaceFlinger::invalidateHwcGeometry() 754{ 755 mHwWorkListDirty = true; 756} 757 758bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers) 759{ 760 bool recomputeVisibleRegions = false; 761 size_t count = currentLayers.size(); 762 sp<LayerBase> const* layers = currentLayers.array(); 763 for (size_t i=0 ; i<count ; i++) { 764 const sp<LayerBase>& layer(layers[i]); 765 layer->lockPageFlip(recomputeVisibleRegions); 766 } 767 return recomputeVisibleRegions; 768} 769 770void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers) 771{ 772 const GraphicPlane& plane(graphicPlane(0)); 773 const Transform& planeTransform(plane.transform()); 774 size_t count = currentLayers.size(); 775 sp<LayerBase> const* layers = currentLayers.array(); 776 for (size_t i=0 ; i<count ; i++) { 777 const sp<LayerBase>& layer(layers[i]); 778 layer->unlockPageFlip(planeTransform, mDirtyRegion); 779 } 780} 781 782void SurfaceFlinger::handleWorkList() 783{ 784 mHwWorkListDirty = false; 785 HWComposer& hwc(graphicPlane(0).displayHardware().getHwComposer()); 786 if (hwc.initCheck() == NO_ERROR) { 787 const Vector< sp<LayerBase> >& currentLayers(mVisibleLayersSortedByZ); 788 const size_t count = currentLayers.size(); 789 hwc.createWorkList(count); 790 hwc_layer_t* const cur(hwc.getLayers()); 791 for (size_t i=0 ; cur && i<count ; i++) { 792 currentLayers[i]->setGeometry(&cur[i]); 793 if (mDebugDisableHWC || mDebugRegion) { 794 cur[i].compositionType = HWC_FRAMEBUFFER; 795 cur[i].flags |= HWC_SKIP_LAYER; 796 } 797 } 798 } 799} 800 801void SurfaceFlinger::handleRepaint() 802{ 803 // compute the invalid region 804 mSwapRegion.orSelf(mDirtyRegion); 805 806 if (CC_UNLIKELY(mDebugRegion)) { 807 debugFlashRegions(); 808 } 809 810 // set the frame buffer 811 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 812 glMatrixMode(GL_MODELVIEW); 813 glLoadIdentity(); 814 815 uint32_t flags = hw.getFlags(); 816 if ((flags & DisplayHardware::SWAP_RECTANGLE) || 817 (flags & DisplayHardware::BUFFER_PRESERVED)) 818 { 819 // we can redraw only what's dirty, but since SWAP_RECTANGLE only 820 // takes a rectangle, we must make sure to update that whole 821 // rectangle in that case 822 if (flags & DisplayHardware::SWAP_RECTANGLE) { 823 // TODO: we really should be able to pass a region to 824 // SWAP_RECTANGLE so that we don't have to redraw all this. 825 mDirtyRegion.set(mSwapRegion.bounds()); 826 } else { 827 // in the BUFFER_PRESERVED case, obviously, we can update only 828 // what's needed and nothing more. 829 // NOTE: this is NOT a common case, as preserving the backbuffer 830 // is costly and usually involves copying the whole update back. 831 } 832 } else { 833 if (flags & DisplayHardware::PARTIAL_UPDATES) { 834 // We need to redraw the rectangle that will be updated 835 // (pushed to the framebuffer). 836 // This is needed because PARTIAL_UPDATES only takes one 837 // rectangle instead of a region (see DisplayHardware::flip()) 838 mDirtyRegion.set(mSwapRegion.bounds()); 839 } else { 840 // we need to redraw everything (the whole screen) 841 mDirtyRegion.set(hw.bounds()); 842 mSwapRegion = mDirtyRegion; 843 } 844 } 845 846 setupHardwareComposer(mDirtyRegion); 847 composeSurfaces(mDirtyRegion); 848 849 // update the swap region and clear the dirty region 850 mSwapRegion.orSelf(mDirtyRegion); 851 mDirtyRegion.clear(); 852} 853 854void SurfaceFlinger::setupHardwareComposer(Region& dirtyInOut) 855{ 856 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 857 HWComposer& hwc(hw.getHwComposer()); 858 hwc_layer_t* const cur(hwc.getLayers()); 859 if (!cur) { 860 return; 861 } 862 863 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 864 size_t count = layers.size(); 865 866 ALOGE_IF(hwc.getNumLayers() != count, 867 "HAL number of layers (%d) doesn't match surfaceflinger (%d)", 868 hwc.getNumLayers(), count); 869 870 // just to be extra-safe, use the smallest count 871 if (hwc.initCheck() == NO_ERROR) { 872 count = count < hwc.getNumLayers() ? count : hwc.getNumLayers(); 873 } 874 875 /* 876 * update the per-frame h/w composer data for each layer 877 * and build the transparent region of the FB 878 */ 879 for (size_t i=0 ; i<count ; i++) { 880 const sp<LayerBase>& layer(layers[i]); 881 layer->setPerFrameData(&cur[i]); 882 } 883 const size_t fbLayerCount = hwc.getLayerCount(HWC_FRAMEBUFFER); 884 status_t err = hwc.prepare(); 885 ALOGE_IF(err, "HWComposer::prepare failed (%s)", strerror(-err)); 886 887 if (err == NO_ERROR) { 888 // what's happening here is tricky. 889 // we want to clear all the layers with the CLEAR_FB flags 890 // that are opaque. 891 // however, since some GPU are efficient at preserving 892 // the backbuffer, we want to take advantage of that so we do the 893 // clear only in the dirty region (other areas will be preserved 894 // on those GPUs). 895 // NOTE: on non backbuffer preserving GPU, the dirty region 896 // has already been expanded as needed, so the code is correct 897 // there too. 898 // 899 // However, the content of the framebuffer cannot be trusted when 900 // we switch to/from FB/OVERLAY, in which case we need to 901 // expand the dirty region to those areas too. 902 // 903 // Note also that there is a special case when switching from 904 // "no layers in FB" to "some layers in FB", where we need to redraw 905 // the entire FB, since some areas might contain uninitialized 906 // data. 907 // 908 // Also we want to make sure to not clear areas that belong to 909 // layers above that won't redraw (we would just be erasing them), 910 // that is, we can't erase anything outside the dirty region. 911 912 Region transparent; 913 914 if (!fbLayerCount && hwc.getLayerCount(HWC_FRAMEBUFFER)) { 915 transparent.set(hw.getBounds()); 916 dirtyInOut = transparent; 917 } else { 918 for (size_t i=0 ; i<count ; i++) { 919 const sp<LayerBase>& layer(layers[i]); 920 if ((cur[i].hints & HWC_HINT_CLEAR_FB) && layer->isOpaque()) { 921 transparent.orSelf(layer->visibleRegionScreen); 922 } 923 bool isOverlay = (cur[i].compositionType != HWC_FRAMEBUFFER); 924 if (isOverlay != layer->isOverlay()) { 925 // we transitioned to/from overlay, so add this layer 926 // to the dirty region so the framebuffer can be either 927 // cleared or redrawn. 928 dirtyInOut.orSelf(layer->visibleRegionScreen); 929 } 930 layer->setOverlay(isOverlay); 931 } 932 // don't erase stuff outside the dirty region 933 transparent.andSelf(dirtyInOut); 934 } 935 936 /* 937 * clear the area of the FB that need to be transparent 938 */ 939 if (!transparent.isEmpty()) { 940 glClearColor(0,0,0,0); 941 Region::const_iterator it = transparent.begin(); 942 Region::const_iterator const end = transparent.end(); 943 const int32_t height = hw.getHeight(); 944 while (it != end) { 945 const Rect& r(*it++); 946 const GLint sy = height - (r.top + r.height()); 947 glScissor(r.left, sy, r.width(), r.height()); 948 glClear(GL_COLOR_BUFFER_BIT); 949 } 950 } 951 } 952} 953 954void SurfaceFlinger::composeSurfaces(const Region& dirty) 955{ 956 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 957 HWComposer& hwc(hw.getHwComposer()); 958 959 const size_t fbLayerCount = hwc.getLayerCount(HWC_FRAMEBUFFER); 960 if (CC_UNLIKELY(fbLayerCount && !mWormholeRegion.isEmpty())) { 961 // should never happen unless the window manager has a bug 962 // draw something... 963 drawWormhole(); 964 } 965 966 /* 967 * and then, render the layers targeted at the framebuffer 968 */ 969 hwc_layer_t* const cur(hwc.getLayers()); 970 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 971 size_t count = layers.size(); 972 for (size_t i=0 ; i<count ; i++) { 973 if (cur && (cur[i].compositionType != HWC_FRAMEBUFFER)) { 974 continue; 975 } 976 const sp<LayerBase>& layer(layers[i]); 977 const Region clip(dirty.intersect(layer->visibleRegionScreen)); 978 if (!clip.isEmpty()) { 979 layer->draw(clip); 980 } 981 } 982} 983 984void SurfaceFlinger::debugFlashRegions() 985{ 986 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 987 const uint32_t flags = hw.getFlags(); 988 const int32_t height = hw.getHeight(); 989 if (mSwapRegion.isEmpty()) { 990 return; 991 } 992 993 if (!((flags & DisplayHardware::SWAP_RECTANGLE) || 994 (flags & DisplayHardware::BUFFER_PRESERVED))) { 995 const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ? 996 mDirtyRegion.bounds() : hw.bounds()); 997 composeSurfaces(repaint); 998 } 999 1000 glDisable(GL_TEXTURE_EXTERNAL_OES); 1001 glDisable(GL_TEXTURE_2D); 1002 glDisable(GL_BLEND); 1003 glDisable(GL_SCISSOR_TEST); 1004 1005 static int toggle = 0; 1006 toggle = 1 - toggle; 1007 if (toggle) { 1008 glColor4f(1, 0, 1, 1); 1009 } else { 1010 glColor4f(1, 1, 0, 1); 1011 } 1012 1013 Region::const_iterator it = mDirtyRegion.begin(); 1014 Region::const_iterator const end = mDirtyRegion.end(); 1015 while (it != end) { 1016 const Rect& r = *it++; 1017 GLfloat vertices[][2] = { 1018 { r.left, height - r.top }, 1019 { r.left, height - r.bottom }, 1020 { r.right, height - r.bottom }, 1021 { r.right, height - r.top } 1022 }; 1023 glVertexPointer(2, GL_FLOAT, 0, vertices); 1024 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1025 } 1026 1027 hw.flip(mSwapRegion); 1028 1029 if (mDebugRegion > 1) 1030 usleep(mDebugRegion * 1000); 1031 1032 glEnable(GL_SCISSOR_TEST); 1033} 1034 1035void SurfaceFlinger::drawWormhole() const 1036{ 1037 const Region region(mWormholeRegion.intersect(mDirtyRegion)); 1038 if (region.isEmpty()) 1039 return; 1040 1041 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1042 const int32_t width = hw.getWidth(); 1043 const int32_t height = hw.getHeight(); 1044 1045 if (CC_LIKELY(!mDebugBackground)) { 1046 glClearColor(0,0,0,0); 1047 Region::const_iterator it = region.begin(); 1048 Region::const_iterator const end = region.end(); 1049 while (it != end) { 1050 const Rect& r = *it++; 1051 const GLint sy = height - (r.top + r.height()); 1052 glScissor(r.left, sy, r.width(), r.height()); 1053 glClear(GL_COLOR_BUFFER_BIT); 1054 } 1055 } else { 1056 const GLshort vertices[][2] = { { 0, 0 }, { width, 0 }, 1057 { width, height }, { 0, height } }; 1058 const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } }; 1059 1060 glVertexPointer(2, GL_SHORT, 0, vertices); 1061 glTexCoordPointer(2, GL_SHORT, 0, tcoords); 1062 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1063 1064 glDisable(GL_TEXTURE_EXTERNAL_OES); 1065 glEnable(GL_TEXTURE_2D); 1066 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 1067 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1068 glMatrixMode(GL_TEXTURE); 1069 glLoadIdentity(); 1070 1071 glDisable(GL_BLEND); 1072 1073 glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1); 1074 Region::const_iterator it = region.begin(); 1075 Region::const_iterator const end = region.end(); 1076 while (it != end) { 1077 const Rect& r = *it++; 1078 const GLint sy = height - (r.top + r.height()); 1079 glScissor(r.left, sy, r.width(), r.height()); 1080 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1081 } 1082 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1083 glDisable(GL_TEXTURE_2D); 1084 glLoadIdentity(); 1085 glMatrixMode(GL_MODELVIEW); 1086 } 1087} 1088 1089status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer) 1090{ 1091 Mutex::Autolock _l(mStateLock); 1092 addLayer_l(layer); 1093 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1094 return NO_ERROR; 1095} 1096 1097status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer) 1098{ 1099 ssize_t i = mCurrentState.layersSortedByZ.add(layer); 1100 return (i < 0) ? status_t(i) : status_t(NO_ERROR); 1101} 1102 1103ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client, 1104 const sp<LayerBaseClient>& lbc) 1105{ 1106 // attach this layer to the client 1107 size_t name = client->attachLayer(lbc); 1108 1109 Mutex::Autolock _l(mStateLock); 1110 1111 // add this layer to the current state list 1112 addLayer_l(lbc); 1113 1114 return ssize_t(name); 1115} 1116 1117status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer) 1118{ 1119 Mutex::Autolock _l(mStateLock); 1120 status_t err = purgatorizeLayer_l(layer); 1121 if (err == NO_ERROR) 1122 setTransactionFlags(eTransactionNeeded); 1123 return err; 1124} 1125 1126status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase) 1127{ 1128 sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient()); 1129 if (lbc != 0) { 1130 mLayerMap.removeItem( lbc->getSurfaceBinder() ); 1131 } 1132 ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase); 1133 if (index >= 0) { 1134 mLayersRemoved = true; 1135 return NO_ERROR; 1136 } 1137 return status_t(index); 1138} 1139 1140status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase) 1141{ 1142 // First add the layer to the purgatory list, which makes sure it won't 1143 // go away, then remove it from the main list (through a transaction). 1144 ssize_t err = removeLayer_l(layerBase); 1145 if (err >= 0) { 1146 mLayerPurgatory.add(layerBase); 1147 } 1148 1149 mLayersPendingRemoval.push(layerBase); 1150 1151 // it's possible that we don't find a layer, because it might 1152 // have been destroyed already -- this is not technically an error 1153 // from the user because there is a race between Client::destroySurface(), 1154 // ~Client() and ~ISurface(). 1155 return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err; 1156} 1157 1158status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer) 1159{ 1160 layer->forceVisibilityTransaction(); 1161 setTransactionFlags(eTraversalNeeded); 1162 return NO_ERROR; 1163} 1164 1165uint32_t SurfaceFlinger::peekTransactionFlags(uint32_t flags) 1166{ 1167 return android_atomic_release_load(&mTransactionFlags); 1168} 1169 1170uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags) 1171{ 1172 return android_atomic_and(~flags, &mTransactionFlags) & flags; 1173} 1174 1175uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags) 1176{ 1177 uint32_t old = android_atomic_or(flags, &mTransactionFlags); 1178 if ((old & flags)==0) { // wake the server up 1179 signalEvent(); 1180 } 1181 return old; 1182} 1183 1184 1185void SurfaceFlinger::setTransactionState(const Vector<ComposerState>& state, 1186 int orientation, uint32_t flags) { 1187 Mutex::Autolock _l(mStateLock); 1188 1189 uint32_t transactionFlags = 0; 1190 if (mCurrentState.orientation != orientation) { 1191 if (uint32_t(orientation)<=eOrientation270 || orientation==42) { 1192 mCurrentState.orientation = orientation; 1193 transactionFlags |= eTransactionNeeded; 1194 } else if (orientation != eOrientationUnchanged) { 1195 ALOGW("setTransactionState: ignoring unrecognized orientation: %d", 1196 orientation); 1197 } 1198 } 1199 1200 const size_t count = state.size(); 1201 for (size_t i=0 ; i<count ; i++) { 1202 const ComposerState& s(state[i]); 1203 sp<Client> client( static_cast<Client *>(s.client.get()) ); 1204 transactionFlags |= setClientStateLocked(client, s.state); 1205 } 1206 1207 if (transactionFlags) { 1208 // this triggers the transaction 1209 setTransactionFlags(transactionFlags); 1210 1211 // if this is a synchronous transaction, wait for it to take effect 1212 // before returning. 1213 if (flags & eSynchronous) { 1214 mTransationPending = true; 1215 } 1216 while (mTransationPending) { 1217 status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5)); 1218 if (CC_UNLIKELY(err != NO_ERROR)) { 1219 // just in case something goes wrong in SF, return to the 1220 // called after a few seconds. 1221 ALOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!"); 1222 mTransationPending = false; 1223 break; 1224 } 1225 } 1226 } 1227} 1228 1229sp<ISurface> SurfaceFlinger::createSurface( 1230 ISurfaceComposerClient::surface_data_t* params, 1231 const String8& name, 1232 const sp<Client>& client, 1233 DisplayID d, uint32_t w, uint32_t h, PixelFormat format, 1234 uint32_t flags) 1235{ 1236 sp<LayerBaseClient> layer; 1237 sp<ISurface> surfaceHandle; 1238 1239 if (int32_t(w|h) < 0) { 1240 ALOGE("createSurface() failed, w or h is negative (w=%d, h=%d)", 1241 int(w), int(h)); 1242 return surfaceHandle; 1243 } 1244 1245 //ALOGD("createSurface for pid %d (%d x %d)", pid, w, h); 1246 sp<Layer> normalLayer; 1247 switch (flags & eFXSurfaceMask) { 1248 case eFXSurfaceNormal: 1249 normalLayer = createNormalSurface(client, d, w, h, flags, format); 1250 layer = normalLayer; 1251 break; 1252 case eFXSurfaceBlur: 1253 // for now we treat Blur as Dim, until we can implement it 1254 // efficiently. 1255 case eFXSurfaceDim: 1256 layer = createDimSurface(client, d, w, h, flags); 1257 break; 1258 case eFXSurfaceScreenshot: 1259 layer = createScreenshotSurface(client, d, w, h, flags); 1260 break; 1261 } 1262 1263 if (layer != 0) { 1264 layer->initStates(w, h, flags); 1265 layer->setName(name); 1266 ssize_t token = addClientLayer(client, layer); 1267 1268 surfaceHandle = layer->getSurface(); 1269 if (surfaceHandle != 0) { 1270 params->token = token; 1271 params->identity = layer->getIdentity(); 1272 if (normalLayer != 0) { 1273 Mutex::Autolock _l(mStateLock); 1274 mLayerMap.add(layer->getSurfaceBinder(), normalLayer); 1275 } 1276 } 1277 1278 setTransactionFlags(eTransactionNeeded); 1279 } 1280 1281 return surfaceHandle; 1282} 1283 1284sp<Layer> SurfaceFlinger::createNormalSurface( 1285 const sp<Client>& client, DisplayID display, 1286 uint32_t w, uint32_t h, uint32_t flags, 1287 PixelFormat& format) 1288{ 1289 // initialize the surfaces 1290 switch (format) { // TODO: take h/w into account 1291 case PIXEL_FORMAT_TRANSPARENT: 1292 case PIXEL_FORMAT_TRANSLUCENT: 1293 format = PIXEL_FORMAT_RGBA_8888; 1294 break; 1295 case PIXEL_FORMAT_OPAQUE: 1296#ifdef NO_RGBX_8888 1297 format = PIXEL_FORMAT_RGB_565; 1298#else 1299 format = PIXEL_FORMAT_RGBX_8888; 1300#endif 1301 break; 1302 } 1303 1304#ifdef NO_RGBX_8888 1305 if (format == PIXEL_FORMAT_RGBX_8888) 1306 format = PIXEL_FORMAT_RGBA_8888; 1307#endif 1308 1309 sp<Layer> layer = new Layer(this, display, client); 1310 status_t err = layer->setBuffers(w, h, format, flags); 1311 if (CC_LIKELY(err != NO_ERROR)) { 1312 ALOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err)); 1313 layer.clear(); 1314 } 1315 return layer; 1316} 1317 1318sp<LayerDim> SurfaceFlinger::createDimSurface( 1319 const sp<Client>& client, DisplayID display, 1320 uint32_t w, uint32_t h, uint32_t flags) 1321{ 1322 sp<LayerDim> layer = new LayerDim(this, display, client); 1323 return layer; 1324} 1325 1326sp<LayerScreenshot> SurfaceFlinger::createScreenshotSurface( 1327 const sp<Client>& client, DisplayID display, 1328 uint32_t w, uint32_t h, uint32_t flags) 1329{ 1330 sp<LayerScreenshot> layer = new LayerScreenshot(this, display, client); 1331 return layer; 1332} 1333 1334status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid) 1335{ 1336 /* 1337 * called by the window manager, when a surface should be marked for 1338 * destruction. 1339 * 1340 * The surface is removed from the current and drawing lists, but placed 1341 * in the purgatory queue, so it's not destroyed right-away (we need 1342 * to wait for all client's references to go away first). 1343 */ 1344 1345 status_t err = NAME_NOT_FOUND; 1346 Mutex::Autolock _l(mStateLock); 1347 sp<LayerBaseClient> layer = client->getLayerUser(sid); 1348 if (layer != 0) { 1349 err = purgatorizeLayer_l(layer); 1350 if (err == NO_ERROR) { 1351 setTransactionFlags(eTransactionNeeded); 1352 } 1353 } 1354 return err; 1355} 1356 1357status_t SurfaceFlinger::destroySurface(const wp<LayerBaseClient>& layer) 1358{ 1359 // called by ~ISurface() when all references are gone 1360 status_t err = NO_ERROR; 1361 sp<LayerBaseClient> l(layer.promote()); 1362 if (l != NULL) { 1363 Mutex::Autolock _l(mStateLock); 1364 err = removeLayer_l(l); 1365 if (err == NAME_NOT_FOUND) { 1366 // The surface wasn't in the current list, which means it was 1367 // removed already, which means it is in the purgatory, 1368 // and need to be removed from there. 1369 ssize_t idx = mLayerPurgatory.remove(l); 1370 ALOGE_IF(idx < 0, 1371 "layer=%p is not in the purgatory list", l.get()); 1372 } 1373 ALOGE_IF(err<0 && err != NAME_NOT_FOUND, 1374 "error removing layer=%p (%s)", l.get(), strerror(-err)); 1375 } 1376 return err; 1377} 1378 1379uint32_t SurfaceFlinger::setClientStateLocked( 1380 const sp<Client>& client, 1381 const layer_state_t& s) 1382{ 1383 uint32_t flags = 0; 1384 sp<LayerBaseClient> layer(client->getLayerUser(s.surface)); 1385 if (layer != 0) { 1386 const uint32_t what = s.what; 1387 if (what & ePositionChanged) { 1388 if (layer->setPosition(s.x, s.y)) 1389 flags |= eTraversalNeeded; 1390 } 1391 if (what & eLayerChanged) { 1392 ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer); 1393 if (layer->setLayer(s.z)) { 1394 mCurrentState.layersSortedByZ.removeAt(idx); 1395 mCurrentState.layersSortedByZ.add(layer); 1396 // we need traversal (state changed) 1397 // AND transaction (list changed) 1398 flags |= eTransactionNeeded|eTraversalNeeded; 1399 } 1400 } 1401 if (what & eSizeChanged) { 1402 if (layer->setSize(s.w, s.h)) { 1403 flags |= eTraversalNeeded; 1404 } 1405 } 1406 if (what & eAlphaChanged) { 1407 if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f))) 1408 flags |= eTraversalNeeded; 1409 } 1410 if (what & eMatrixChanged) { 1411 if (layer->setMatrix(s.matrix)) 1412 flags |= eTraversalNeeded; 1413 } 1414 if (what & eTransparentRegionChanged) { 1415 if (layer->setTransparentRegionHint(s.transparentRegion)) 1416 flags |= eTraversalNeeded; 1417 } 1418 if (what & eVisibilityChanged) { 1419 if (layer->setFlags(s.flags, s.mask)) 1420 flags |= eTraversalNeeded; 1421 } 1422 } 1423 return flags; 1424} 1425 1426void SurfaceFlinger::screenReleased(int dpy) 1427{ 1428 // this may be called by a signal handler, we can't do too much in here 1429 android_atomic_or(eConsoleReleased, &mConsoleSignals); 1430 signalEvent(); 1431} 1432 1433void SurfaceFlinger::screenAcquired(int dpy) 1434{ 1435 // this may be called by a signal handler, we can't do too much in here 1436 android_atomic_or(eConsoleAcquired, &mConsoleSignals); 1437 signalEvent(); 1438} 1439 1440status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args) 1441{ 1442 const size_t SIZE = 4096; 1443 char buffer[SIZE]; 1444 String8 result; 1445 1446 if (!PermissionCache::checkCallingPermission(sDump)) { 1447 snprintf(buffer, SIZE, "Permission Denial: " 1448 "can't dump SurfaceFlinger from pid=%d, uid=%d\n", 1449 IPCThreadState::self()->getCallingPid(), 1450 IPCThreadState::self()->getCallingUid()); 1451 result.append(buffer); 1452 } else { 1453 // Try to get the main lock, but don't insist if we can't 1454 // (this would indicate SF is stuck, but we want to be able to 1455 // print something in dumpsys). 1456 int retry = 3; 1457 while (mStateLock.tryLock()<0 && --retry>=0) { 1458 usleep(1000000); 1459 } 1460 const bool locked(retry >= 0); 1461 if (!locked) { 1462 snprintf(buffer, SIZE, 1463 "SurfaceFlinger appears to be unresponsive, " 1464 "dumping anyways (no locks held)\n"); 1465 result.append(buffer); 1466 } 1467 1468 bool dumpAll = true; 1469 size_t index = 0; 1470 size_t numArgs = args.size(); 1471 if (numArgs) { 1472 dumpAll = false; 1473 1474 if ((index < numArgs) && 1475 (args[index] == String16("--list"))) { 1476 index++; 1477 listLayersLocked(args, index, result, buffer, SIZE); 1478 } 1479 1480 if ((index < numArgs) && 1481 (args[index] == String16("--latency"))) { 1482 index++; 1483 dumpStatsLocked(args, index, result, buffer, SIZE); 1484 } 1485 1486 if ((index < numArgs) && 1487 (args[index] == String16("--latency-clear"))) { 1488 index++; 1489 clearStatsLocked(args, index, result, buffer, SIZE); 1490 } 1491 } 1492 1493 if (dumpAll) { 1494 dumpAllLocked(result, buffer, SIZE); 1495 } 1496 1497 if (locked) { 1498 mStateLock.unlock(); 1499 } 1500 } 1501 write(fd, result.string(), result.size()); 1502 return NO_ERROR; 1503} 1504 1505void SurfaceFlinger::listLayersLocked(const Vector<String16>& args, size_t& index, 1506 String8& result, char* buffer, size_t SIZE) const 1507{ 1508 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1509 const size_t count = currentLayers.size(); 1510 for (size_t i=0 ; i<count ; i++) { 1511 const sp<LayerBase>& layer(currentLayers[i]); 1512 snprintf(buffer, SIZE, "%s\n", layer->getName().string()); 1513 result.append(buffer); 1514 } 1515} 1516 1517void SurfaceFlinger::dumpStatsLocked(const Vector<String16>& args, size_t& index, 1518 String8& result, char* buffer, size_t SIZE) const 1519{ 1520 String8 name; 1521 if (index < args.size()) { 1522 name = String8(args[index]); 1523 index++; 1524 } 1525 1526 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1527 const size_t count = currentLayers.size(); 1528 for (size_t i=0 ; i<count ; i++) { 1529 const sp<LayerBase>& layer(currentLayers[i]); 1530 if (name.isEmpty()) { 1531 snprintf(buffer, SIZE, "%s\n", layer->getName().string()); 1532 result.append(buffer); 1533 } 1534 if (name.isEmpty() || (name == layer->getName())) { 1535 layer->dumpStats(result, buffer, SIZE); 1536 } 1537 } 1538} 1539 1540void SurfaceFlinger::clearStatsLocked(const Vector<String16>& args, size_t& index, 1541 String8& result, char* buffer, size_t SIZE) const 1542{ 1543 String8 name; 1544 if (index < args.size()) { 1545 name = String8(args[index]); 1546 index++; 1547 } 1548 1549 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1550 const size_t count = currentLayers.size(); 1551 for (size_t i=0 ; i<count ; i++) { 1552 const sp<LayerBase>& layer(currentLayers[i]); 1553 if (name.isEmpty() || (name == layer->getName())) { 1554 layer->clearStats(); 1555 } 1556 } 1557} 1558 1559void SurfaceFlinger::dumpAllLocked( 1560 String8& result, char* buffer, size_t SIZE) const 1561{ 1562 // figure out if we're stuck somewhere 1563 const nsecs_t now = systemTime(); 1564 const nsecs_t inSwapBuffers(mDebugInSwapBuffers); 1565 const nsecs_t inTransaction(mDebugInTransaction); 1566 nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0; 1567 nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0; 1568 1569 /* 1570 * Dump the visible layer list 1571 */ 1572 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1573 const size_t count = currentLayers.size(); 1574 snprintf(buffer, SIZE, "Visible layers (count = %d)\n", count); 1575 result.append(buffer); 1576 for (size_t i=0 ; i<count ; i++) { 1577 const sp<LayerBase>& layer(currentLayers[i]); 1578 layer->dump(result, buffer, SIZE); 1579 } 1580 1581 /* 1582 * Dump the layers in the purgatory 1583 */ 1584 1585 const size_t purgatorySize = mLayerPurgatory.size(); 1586 snprintf(buffer, SIZE, "Purgatory state (%d entries)\n", purgatorySize); 1587 result.append(buffer); 1588 for (size_t i=0 ; i<purgatorySize ; i++) { 1589 const sp<LayerBase>& layer(mLayerPurgatory.itemAt(i)); 1590 layer->shortDump(result, buffer, SIZE); 1591 } 1592 1593 /* 1594 * Dump SurfaceFlinger global state 1595 */ 1596 1597 snprintf(buffer, SIZE, "SurfaceFlinger global state:\n"); 1598 result.append(buffer); 1599 1600 const GLExtensions& extensions(GLExtensions::getInstance()); 1601 snprintf(buffer, SIZE, "GLES: %s, %s, %s\n", 1602 extensions.getVendor(), 1603 extensions.getRenderer(), 1604 extensions.getVersion()); 1605 result.append(buffer); 1606 1607 snprintf(buffer, SIZE, "EGL : %s\n", 1608 eglQueryString(graphicPlane(0).getEGLDisplay(), 1609 EGL_VERSION_HW_ANDROID)); 1610 result.append(buffer); 1611 1612 snprintf(buffer, SIZE, "EXTS: %s\n", extensions.getExtension()); 1613 result.append(buffer); 1614 1615 mWormholeRegion.dump(result, "WormholeRegion"); 1616 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1617 snprintf(buffer, SIZE, 1618 " orientation=%d, canDraw=%d\n", 1619 mCurrentState.orientation, hw.canDraw()); 1620 result.append(buffer); 1621 snprintf(buffer, SIZE, 1622 " last eglSwapBuffers() time: %f us\n" 1623 " last transaction time : %f us\n" 1624 " refresh-rate : %f fps\n" 1625 " x-dpi : %f\n" 1626 " y-dpi : %f\n", 1627 mLastSwapBufferTime/1000.0, 1628 mLastTransactionTime/1000.0, 1629 hw.getRefreshRate(), 1630 hw.getDpiX(), 1631 hw.getDpiY()); 1632 result.append(buffer); 1633 1634 snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n", 1635 inSwapBuffersDuration/1000.0); 1636 result.append(buffer); 1637 1638 snprintf(buffer, SIZE, " transaction time: %f us\n", 1639 inTransactionDuration/1000.0); 1640 result.append(buffer); 1641 1642 /* 1643 * VSYNC state 1644 */ 1645 mEventThread->dump(result, buffer, SIZE); 1646 1647 /* 1648 * Dump HWComposer state 1649 */ 1650 HWComposer& hwc(hw.getHwComposer()); 1651 snprintf(buffer, SIZE, "h/w composer state:\n"); 1652 result.append(buffer); 1653 snprintf(buffer, SIZE, " h/w composer %s and %s\n", 1654 hwc.initCheck()==NO_ERROR ? "present" : "not present", 1655 (mDebugDisableHWC || mDebugRegion) ? "disabled" : "enabled"); 1656 result.append(buffer); 1657 hwc.dump(result, buffer, SIZE, mVisibleLayersSortedByZ); 1658 1659 /* 1660 * Dump gralloc state 1661 */ 1662 const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get()); 1663 alloc.dump(result); 1664 hw.dump(result); 1665} 1666 1667status_t SurfaceFlinger::onTransact( 1668 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1669{ 1670 switch (code) { 1671 case CREATE_CONNECTION: 1672 case SET_TRANSACTION_STATE: 1673 case SET_ORIENTATION: 1674 case BOOT_FINISHED: 1675 case TURN_ELECTRON_BEAM_OFF: 1676 case TURN_ELECTRON_BEAM_ON: 1677 { 1678 // codes that require permission check 1679 IPCThreadState* ipc = IPCThreadState::self(); 1680 const int pid = ipc->getCallingPid(); 1681 const int uid = ipc->getCallingUid(); 1682 if ((uid != AID_GRAPHICS) && 1683 !PermissionCache::checkPermission(sAccessSurfaceFlinger, pid, uid)) { 1684 ALOGE("Permission Denial: " 1685 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1686 return PERMISSION_DENIED; 1687 } 1688 break; 1689 } 1690 case CAPTURE_SCREEN: 1691 { 1692 // codes that require permission check 1693 IPCThreadState* ipc = IPCThreadState::self(); 1694 const int pid = ipc->getCallingPid(); 1695 const int uid = ipc->getCallingUid(); 1696 if ((uid != AID_GRAPHICS) && 1697 !PermissionCache::checkPermission(sReadFramebuffer, pid, uid)) { 1698 ALOGE("Permission Denial: " 1699 "can't read framebuffer pid=%d, uid=%d", pid, uid); 1700 return PERMISSION_DENIED; 1701 } 1702 break; 1703 } 1704 } 1705 1706 status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags); 1707 if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) { 1708 CHECK_INTERFACE(ISurfaceComposer, data, reply); 1709 if (CC_UNLIKELY(!PermissionCache::checkCallingPermission(sHardwareTest))) { 1710 IPCThreadState* ipc = IPCThreadState::self(); 1711 const int pid = ipc->getCallingPid(); 1712 const int uid = ipc->getCallingUid(); 1713 ALOGE("Permission Denial: " 1714 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1715 return PERMISSION_DENIED; 1716 } 1717 int n; 1718 switch (code) { 1719 case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE 1720 case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE 1721 return NO_ERROR; 1722 case 1002: // SHOW_UPDATES 1723 n = data.readInt32(); 1724 mDebugRegion = n ? n : (mDebugRegion ? 0 : 1); 1725 invalidateHwcGeometry(); 1726 repaintEverything(); 1727 return NO_ERROR; 1728 case 1003: // SHOW_BACKGROUND 1729 n = data.readInt32(); 1730 mDebugBackground = n ? 1 : 0; 1731 return NO_ERROR; 1732 case 1004:{ // repaint everything 1733 repaintEverything(); 1734 return NO_ERROR; 1735 } 1736 case 1005:{ // force transaction 1737 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1738 return NO_ERROR; 1739 } 1740 case 1008: // toggle use of hw composer 1741 n = data.readInt32(); 1742 mDebugDisableHWC = n ? 1 : 0; 1743 invalidateHwcGeometry(); 1744 repaintEverything(); 1745 return NO_ERROR; 1746 case 1009: // toggle use of transform hint 1747 n = data.readInt32(); 1748 mDebugDisableTransformHint = n ? 1 : 0; 1749 invalidateHwcGeometry(); 1750 repaintEverything(); 1751 return NO_ERROR; 1752 case 1010: // interrogate. 1753 reply->writeInt32(0); 1754 reply->writeInt32(0); 1755 reply->writeInt32(mDebugRegion); 1756 reply->writeInt32(mDebugBackground); 1757 return NO_ERROR; 1758 case 1013: { 1759 Mutex::Autolock _l(mStateLock); 1760 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1761 reply->writeInt32(hw.getPageFlipCount()); 1762 } 1763 return NO_ERROR; 1764 } 1765 } 1766 return err; 1767} 1768 1769void SurfaceFlinger::repaintEverything() { 1770 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1771 const Rect bounds(hw.getBounds()); 1772 setInvalidateRegion(Region(bounds)); 1773 signalEvent(); 1774} 1775 1776void SurfaceFlinger::setInvalidateRegion(const Region& reg) { 1777 Mutex::Autolock _l(mInvalidateLock); 1778 mInvalidateRegion = reg; 1779} 1780 1781Region SurfaceFlinger::getAndClearInvalidateRegion() { 1782 Mutex::Autolock _l(mInvalidateLock); 1783 Region reg(mInvalidateRegion); 1784 mInvalidateRegion.clear(); 1785 return reg; 1786} 1787 1788// --------------------------------------------------------------------------- 1789 1790status_t SurfaceFlinger::renderScreenToTexture(DisplayID dpy, 1791 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1792{ 1793 Mutex::Autolock _l(mStateLock); 1794 return renderScreenToTextureLocked(dpy, textureName, uOut, vOut); 1795} 1796 1797status_t SurfaceFlinger::renderScreenToTextureLocked(DisplayID dpy, 1798 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1799{ 1800 if (!GLExtensions::getInstance().haveFramebufferObject()) 1801 return INVALID_OPERATION; 1802 1803 // get screen geometry 1804 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 1805 const uint32_t hw_w = hw.getWidth(); 1806 const uint32_t hw_h = hw.getHeight(); 1807 GLfloat u = 1; 1808 GLfloat v = 1; 1809 1810 // make sure to clear all GL error flags 1811 while ( glGetError() != GL_NO_ERROR ) ; 1812 1813 // create a FBO 1814 GLuint name, tname; 1815 glGenTextures(1, &tname); 1816 glBindTexture(GL_TEXTURE_2D, tname); 1817 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1818 hw_w, hw_h, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1819 if (glGetError() != GL_NO_ERROR) { 1820 while ( glGetError() != GL_NO_ERROR ) ; 1821 GLint tw = (2 << (31 - clz(hw_w))); 1822 GLint th = (2 << (31 - clz(hw_h))); 1823 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1824 tw, th, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1825 u = GLfloat(hw_w) / tw; 1826 v = GLfloat(hw_h) / th; 1827 } 1828 glGenFramebuffersOES(1, &name); 1829 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 1830 glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, 1831 GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0); 1832 1833 // redraw the screen entirely... 1834 glDisable(GL_TEXTURE_EXTERNAL_OES); 1835 glDisable(GL_TEXTURE_2D); 1836 glDisable(GL_SCISSOR_TEST); 1837 glClearColor(0,0,0,1); 1838 glClear(GL_COLOR_BUFFER_BIT); 1839 glEnable(GL_SCISSOR_TEST); 1840 glMatrixMode(GL_MODELVIEW); 1841 glLoadIdentity(); 1842 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1843 const size_t count = layers.size(); 1844 for (size_t i=0 ; i<count ; ++i) { 1845 const sp<LayerBase>& layer(layers[i]); 1846 layer->drawForSreenShot(); 1847 } 1848 1849 hw.compositionComplete(); 1850 1851 // back to main framebuffer 1852 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1853 glDisable(GL_SCISSOR_TEST); 1854 glDeleteFramebuffersOES(1, &name); 1855 1856 *textureName = tname; 1857 *uOut = u; 1858 *vOut = v; 1859 return NO_ERROR; 1860} 1861 1862// --------------------------------------------------------------------------- 1863 1864status_t SurfaceFlinger::electronBeamOffAnimationImplLocked() 1865{ 1866 // get screen geometry 1867 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1868 const uint32_t hw_w = hw.getWidth(); 1869 const uint32_t hw_h = hw.getHeight(); 1870 const Region screenBounds(hw.getBounds()); 1871 1872 GLfloat u, v; 1873 GLuint tname; 1874 status_t result = renderScreenToTextureLocked(0, &tname, &u, &v); 1875 if (result != NO_ERROR) { 1876 return result; 1877 } 1878 1879 GLfloat vtx[8]; 1880 const GLfloat texCoords[4][2] = { {0,0}, {0,v}, {u,v}, {u,0} }; 1881 glBindTexture(GL_TEXTURE_2D, tname); 1882 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1883 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1884 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1885 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1886 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1887 glVertexPointer(2, GL_FLOAT, 0, vtx); 1888 1889 /* 1890 * Texture coordinate mapping 1891 * 1892 * u 1893 * 1 +----------+---+ 1894 * | | | | image is inverted 1895 * | V | | w.r.t. the texture 1896 * 1-v +----------+ | coordinates 1897 * | | 1898 * | | 1899 * | | 1900 * 0 +--------------+ 1901 * 0 1 1902 * 1903 */ 1904 1905 class s_curve_interpolator { 1906 const float nbFrames, s, v; 1907 public: 1908 s_curve_interpolator(int nbFrames, float s) 1909 : nbFrames(1.0f / (nbFrames-1)), s(s), 1910 v(1.0f + expf(-s + 0.5f*s)) { 1911 } 1912 float operator()(int f) { 1913 const float x = f * nbFrames; 1914 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1915 } 1916 }; 1917 1918 class v_stretch { 1919 const GLfloat hw_w, hw_h; 1920 public: 1921 v_stretch(uint32_t hw_w, uint32_t hw_h) 1922 : hw_w(hw_w), hw_h(hw_h) { 1923 } 1924 void operator()(GLfloat* vtx, float v) { 1925 const GLfloat w = hw_w + (hw_w * v); 1926 const GLfloat h = hw_h - (hw_h * v); 1927 const GLfloat x = (hw_w - w) * 0.5f; 1928 const GLfloat y = (hw_h - h) * 0.5f; 1929 vtx[0] = x; vtx[1] = y; 1930 vtx[2] = x; vtx[3] = y + h; 1931 vtx[4] = x + w; vtx[5] = y + h; 1932 vtx[6] = x + w; vtx[7] = y; 1933 } 1934 }; 1935 1936 class h_stretch { 1937 const GLfloat hw_w, hw_h; 1938 public: 1939 h_stretch(uint32_t hw_w, uint32_t hw_h) 1940 : hw_w(hw_w), hw_h(hw_h) { 1941 } 1942 void operator()(GLfloat* vtx, float v) { 1943 const GLfloat w = hw_w - (hw_w * v); 1944 const GLfloat h = 1.0f; 1945 const GLfloat x = (hw_w - w) * 0.5f; 1946 const GLfloat y = (hw_h - h) * 0.5f; 1947 vtx[0] = x; vtx[1] = y; 1948 vtx[2] = x; vtx[3] = y + h; 1949 vtx[4] = x + w; vtx[5] = y + h; 1950 vtx[6] = x + w; vtx[7] = y; 1951 } 1952 }; 1953 1954 // the full animation is 24 frames 1955 char value[PROPERTY_VALUE_MAX]; 1956 property_get("debug.sf.electron_frames", value, "24"); 1957 int nbFrames = (atoi(value) + 1) >> 1; 1958 if (nbFrames <= 0) // just in case 1959 nbFrames = 24; 1960 1961 s_curve_interpolator itr(nbFrames, 7.5f); 1962 s_curve_interpolator itg(nbFrames, 8.0f); 1963 s_curve_interpolator itb(nbFrames, 8.5f); 1964 1965 v_stretch vverts(hw_w, hw_h); 1966 1967 glMatrixMode(GL_TEXTURE); 1968 glLoadIdentity(); 1969 glMatrixMode(GL_MODELVIEW); 1970 glLoadIdentity(); 1971 1972 glEnable(GL_BLEND); 1973 glBlendFunc(GL_ONE, GL_ONE); 1974 for (int i=0 ; i<nbFrames ; i++) { 1975 float x, y, w, h; 1976 const float vr = itr(i); 1977 const float vg = itg(i); 1978 const float vb = itb(i); 1979 1980 // clear screen 1981 glColorMask(1,1,1,1); 1982 glClear(GL_COLOR_BUFFER_BIT); 1983 glEnable(GL_TEXTURE_2D); 1984 1985 // draw the red plane 1986 vverts(vtx, vr); 1987 glColorMask(1,0,0,1); 1988 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1989 1990 // draw the green plane 1991 vverts(vtx, vg); 1992 glColorMask(0,1,0,1); 1993 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1994 1995 // draw the blue plane 1996 vverts(vtx, vb); 1997 glColorMask(0,0,1,1); 1998 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1999 2000 // draw the white highlight (we use the last vertices) 2001 glDisable(GL_TEXTURE_2D); 2002 glColorMask(1,1,1,1); 2003 glColor4f(vg, vg, vg, 1); 2004 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2005 hw.flip(screenBounds); 2006 } 2007 2008 h_stretch hverts(hw_w, hw_h); 2009 glDisable(GL_BLEND); 2010 glDisable(GL_TEXTURE_2D); 2011 glColorMask(1,1,1,1); 2012 for (int i=0 ; i<nbFrames ; i++) { 2013 const float v = itg(i); 2014 hverts(vtx, v); 2015 glClear(GL_COLOR_BUFFER_BIT); 2016 glColor4f(1-v, 1-v, 1-v, 1); 2017 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2018 hw.flip(screenBounds); 2019 } 2020 2021 glColorMask(1,1,1,1); 2022 glEnable(GL_SCISSOR_TEST); 2023 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 2024 glDeleteTextures(1, &tname); 2025 glDisable(GL_TEXTURE_2D); 2026 glDisable(GL_BLEND); 2027 return NO_ERROR; 2028} 2029 2030status_t SurfaceFlinger::electronBeamOnAnimationImplLocked() 2031{ 2032 status_t result = PERMISSION_DENIED; 2033 2034 if (!GLExtensions::getInstance().haveFramebufferObject()) 2035 return INVALID_OPERATION; 2036 2037 2038 // get screen geometry 2039 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 2040 const uint32_t hw_w = hw.getWidth(); 2041 const uint32_t hw_h = hw.getHeight(); 2042 const Region screenBounds(hw.bounds()); 2043 2044 GLfloat u, v; 2045 GLuint tname; 2046 result = renderScreenToTextureLocked(0, &tname, &u, &v); 2047 if (result != NO_ERROR) { 2048 return result; 2049 } 2050 2051 GLfloat vtx[8]; 2052 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 2053 glBindTexture(GL_TEXTURE_2D, tname); 2054 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 2055 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 2056 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 2057 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 2058 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 2059 glVertexPointer(2, GL_FLOAT, 0, vtx); 2060 2061 class s_curve_interpolator { 2062 const float nbFrames, s, v; 2063 public: 2064 s_curve_interpolator(int nbFrames, float s) 2065 : nbFrames(1.0f / (nbFrames-1)), s(s), 2066 v(1.0f + expf(-s + 0.5f*s)) { 2067 } 2068 float operator()(int f) { 2069 const float x = f * nbFrames; 2070 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 2071 } 2072 }; 2073 2074 class v_stretch { 2075 const GLfloat hw_w, hw_h; 2076 public: 2077 v_stretch(uint32_t hw_w, uint32_t hw_h) 2078 : hw_w(hw_w), hw_h(hw_h) { 2079 } 2080 void operator()(GLfloat* vtx, float v) { 2081 const GLfloat w = hw_w + (hw_w * v); 2082 const GLfloat h = hw_h - (hw_h * v); 2083 const GLfloat x = (hw_w - w) * 0.5f; 2084 const GLfloat y = (hw_h - h) * 0.5f; 2085 vtx[0] = x; vtx[1] = y; 2086 vtx[2] = x; vtx[3] = y + h; 2087 vtx[4] = x + w; vtx[5] = y + h; 2088 vtx[6] = x + w; vtx[7] = y; 2089 } 2090 }; 2091 2092 class h_stretch { 2093 const GLfloat hw_w, hw_h; 2094 public: 2095 h_stretch(uint32_t hw_w, uint32_t hw_h) 2096 : hw_w(hw_w), hw_h(hw_h) { 2097 } 2098 void operator()(GLfloat* vtx, float v) { 2099 const GLfloat w = hw_w - (hw_w * v); 2100 const GLfloat h = 1.0f; 2101 const GLfloat x = (hw_w - w) * 0.5f; 2102 const GLfloat y = (hw_h - h) * 0.5f; 2103 vtx[0] = x; vtx[1] = y; 2104 vtx[2] = x; vtx[3] = y + h; 2105 vtx[4] = x + w; vtx[5] = y + h; 2106 vtx[6] = x + w; vtx[7] = y; 2107 } 2108 }; 2109 2110 // the full animation is 12 frames 2111 int nbFrames = 8; 2112 s_curve_interpolator itr(nbFrames, 7.5f); 2113 s_curve_interpolator itg(nbFrames, 8.0f); 2114 s_curve_interpolator itb(nbFrames, 8.5f); 2115 2116 h_stretch hverts(hw_w, hw_h); 2117 glDisable(GL_BLEND); 2118 glDisable(GL_TEXTURE_2D); 2119 glColorMask(1,1,1,1); 2120 for (int i=nbFrames-1 ; i>=0 ; i--) { 2121 const float v = itg(i); 2122 hverts(vtx, v); 2123 glClear(GL_COLOR_BUFFER_BIT); 2124 glColor4f(1-v, 1-v, 1-v, 1); 2125 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2126 hw.flip(screenBounds); 2127 } 2128 2129 nbFrames = 4; 2130 v_stretch vverts(hw_w, hw_h); 2131 glEnable(GL_BLEND); 2132 glBlendFunc(GL_ONE, GL_ONE); 2133 for (int i=nbFrames-1 ; i>=0 ; i--) { 2134 float x, y, w, h; 2135 const float vr = itr(i); 2136 const float vg = itg(i); 2137 const float vb = itb(i); 2138 2139 // clear screen 2140 glColorMask(1,1,1,1); 2141 glClear(GL_COLOR_BUFFER_BIT); 2142 glEnable(GL_TEXTURE_2D); 2143 2144 // draw the red plane 2145 vverts(vtx, vr); 2146 glColorMask(1,0,0,1); 2147 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2148 2149 // draw the green plane 2150 vverts(vtx, vg); 2151 glColorMask(0,1,0,1); 2152 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2153 2154 // draw the blue plane 2155 vverts(vtx, vb); 2156 glColorMask(0,0,1,1); 2157 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2158 2159 hw.flip(screenBounds); 2160 } 2161 2162 glColorMask(1,1,1,1); 2163 glEnable(GL_SCISSOR_TEST); 2164 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 2165 glDeleteTextures(1, &tname); 2166 glDisable(GL_TEXTURE_2D); 2167 glDisable(GL_BLEND); 2168 2169 return NO_ERROR; 2170} 2171 2172// --------------------------------------------------------------------------- 2173 2174status_t SurfaceFlinger::turnElectronBeamOffImplLocked(int32_t mode) 2175{ 2176 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2177 if (!hw.canDraw()) { 2178 // we're already off 2179 return NO_ERROR; 2180 } 2181 2182 // turn off hwc while we're doing the animation 2183 hw.getHwComposer().disable(); 2184 // and make sure to turn it back on (if needed) next time we compose 2185 invalidateHwcGeometry(); 2186 2187 if (mode & ISurfaceComposer::eElectronBeamAnimationOff) { 2188 electronBeamOffAnimationImplLocked(); 2189 } 2190 2191 // always clear the whole screen at the end of the animation 2192 glClearColor(0,0,0,1); 2193 glDisable(GL_SCISSOR_TEST); 2194 glClear(GL_COLOR_BUFFER_BIT); 2195 glEnable(GL_SCISSOR_TEST); 2196 hw.flip( Region(hw.bounds()) ); 2197 2198 return NO_ERROR; 2199} 2200 2201status_t SurfaceFlinger::turnElectronBeamOff(int32_t mode) 2202{ 2203 class MessageTurnElectronBeamOff : public MessageBase { 2204 SurfaceFlinger* flinger; 2205 int32_t mode; 2206 status_t result; 2207 public: 2208 MessageTurnElectronBeamOff(SurfaceFlinger* flinger, int32_t mode) 2209 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2210 } 2211 status_t getResult() const { 2212 return result; 2213 } 2214 virtual bool handler() { 2215 Mutex::Autolock _l(flinger->mStateLock); 2216 result = flinger->turnElectronBeamOffImplLocked(mode); 2217 return true; 2218 } 2219 }; 2220 2221 sp<MessageBase> msg = new MessageTurnElectronBeamOff(this, mode); 2222 status_t res = postMessageSync(msg); 2223 if (res == NO_ERROR) { 2224 res = static_cast<MessageTurnElectronBeamOff*>( msg.get() )->getResult(); 2225 2226 // work-around: when the power-manager calls us we activate the 2227 // animation. eventually, the "on" animation will be called 2228 // by the power-manager itself 2229 mElectronBeamAnimationMode = mode; 2230 } 2231 return res; 2232} 2233 2234// --------------------------------------------------------------------------- 2235 2236status_t SurfaceFlinger::turnElectronBeamOnImplLocked(int32_t mode) 2237{ 2238 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2239 if (hw.canDraw()) { 2240 // we're already on 2241 return NO_ERROR; 2242 } 2243 if (mode & ISurfaceComposer::eElectronBeamAnimationOn) { 2244 electronBeamOnAnimationImplLocked(); 2245 } 2246 2247 // make sure to redraw the whole screen when the animation is done 2248 mDirtyRegion.set(hw.bounds()); 2249 signalEvent(); 2250 2251 return NO_ERROR; 2252} 2253 2254status_t SurfaceFlinger::turnElectronBeamOn(int32_t mode) 2255{ 2256 class MessageTurnElectronBeamOn : public MessageBase { 2257 SurfaceFlinger* flinger; 2258 int32_t mode; 2259 status_t result; 2260 public: 2261 MessageTurnElectronBeamOn(SurfaceFlinger* flinger, int32_t mode) 2262 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2263 } 2264 status_t getResult() const { 2265 return result; 2266 } 2267 virtual bool handler() { 2268 Mutex::Autolock _l(flinger->mStateLock); 2269 result = flinger->turnElectronBeamOnImplLocked(mode); 2270 return true; 2271 } 2272 }; 2273 2274 postMessageAsync( new MessageTurnElectronBeamOn(this, mode) ); 2275 return NO_ERROR; 2276} 2277 2278// --------------------------------------------------------------------------- 2279 2280status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy, 2281 sp<IMemoryHeap>* heap, 2282 uint32_t* w, uint32_t* h, PixelFormat* f, 2283 uint32_t sw, uint32_t sh, 2284 uint32_t minLayerZ, uint32_t maxLayerZ) 2285{ 2286 status_t result = PERMISSION_DENIED; 2287 2288 // only one display supported for now 2289 if (CC_UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2290 return BAD_VALUE; 2291 2292 if (!GLExtensions::getInstance().haveFramebufferObject()) 2293 return INVALID_OPERATION; 2294 2295 // get screen geometry 2296 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 2297 const uint32_t hw_w = hw.getWidth(); 2298 const uint32_t hw_h = hw.getHeight(); 2299 2300 if ((sw > hw_w) || (sh > hw_h)) 2301 return BAD_VALUE; 2302 2303 sw = (!sw) ? hw_w : sw; 2304 sh = (!sh) ? hw_h : sh; 2305 const size_t size = sw * sh * 4; 2306 2307 //ALOGD("screenshot: sw=%d, sh=%d, minZ=%d, maxZ=%d", 2308 // sw, sh, minLayerZ, maxLayerZ); 2309 2310 // make sure to clear all GL error flags 2311 while ( glGetError() != GL_NO_ERROR ) ; 2312 2313 // create a FBO 2314 GLuint name, tname; 2315 glGenRenderbuffersOES(1, &tname); 2316 glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname); 2317 glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh); 2318 glGenFramebuffersOES(1, &name); 2319 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 2320 glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, 2321 GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname); 2322 2323 GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES); 2324 2325 if (status == GL_FRAMEBUFFER_COMPLETE_OES) { 2326 2327 // invert everything, b/c glReadPixel() below will invert the FB 2328 glViewport(0, 0, sw, sh); 2329 glScissor(0, 0, sw, sh); 2330 glEnable(GL_SCISSOR_TEST); 2331 glMatrixMode(GL_PROJECTION); 2332 glPushMatrix(); 2333 glLoadIdentity(); 2334 glOrthof(0, hw_w, hw_h, 0, 0, 1); 2335 glMatrixMode(GL_MODELVIEW); 2336 2337 // redraw the screen entirely... 2338 glClearColor(0,0,0,1); 2339 glClear(GL_COLOR_BUFFER_BIT); 2340 2341 const LayerVector& layers(mDrawingState.layersSortedByZ); 2342 const size_t count = layers.size(); 2343 for (size_t i=0 ; i<count ; ++i) { 2344 const sp<LayerBase>& layer(layers[i]); 2345 const uint32_t flags = layer->drawingState().flags; 2346 if (!(flags & ISurfaceComposer::eLayerHidden)) { 2347 const uint32_t z = layer->drawingState().z; 2348 if (z >= minLayerZ && z <= maxLayerZ) { 2349 layer->drawForSreenShot(); 2350 } 2351 } 2352 } 2353 2354 // XXX: this is needed on tegra 2355 glEnable(GL_SCISSOR_TEST); 2356 glScissor(0, 0, sw, sh); 2357 2358 // check for errors and return screen capture 2359 if (glGetError() != GL_NO_ERROR) { 2360 // error while rendering 2361 result = INVALID_OPERATION; 2362 } else { 2363 // allocate shared memory large enough to hold the 2364 // screen capture 2365 sp<MemoryHeapBase> base( 2366 new MemoryHeapBase(size, 0, "screen-capture") ); 2367 void* const ptr = base->getBase(); 2368 if (ptr) { 2369 // capture the screen with glReadPixels() 2370 glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr); 2371 if (glGetError() == GL_NO_ERROR) { 2372 *heap = base; 2373 *w = sw; 2374 *h = sh; 2375 *f = PIXEL_FORMAT_RGBA_8888; 2376 result = NO_ERROR; 2377 } 2378 } else { 2379 result = NO_MEMORY; 2380 } 2381 } 2382 glEnable(GL_SCISSOR_TEST); 2383 glViewport(0, 0, hw_w, hw_h); 2384 glMatrixMode(GL_PROJECTION); 2385 glPopMatrix(); 2386 glMatrixMode(GL_MODELVIEW); 2387 } else { 2388 result = BAD_VALUE; 2389 } 2390 2391 // release FBO resources 2392 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 2393 glDeleteRenderbuffersOES(1, &tname); 2394 glDeleteFramebuffersOES(1, &name); 2395 2396 hw.compositionComplete(); 2397 2398 // ALOGD("screenshot: result = %s", result<0 ? strerror(result) : "OK"); 2399 2400 return result; 2401} 2402 2403 2404status_t SurfaceFlinger::captureScreen(DisplayID dpy, 2405 sp<IMemoryHeap>* heap, 2406 uint32_t* width, uint32_t* height, PixelFormat* format, 2407 uint32_t sw, uint32_t sh, 2408 uint32_t minLayerZ, uint32_t maxLayerZ) 2409{ 2410 // only one display supported for now 2411 if (CC_UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2412 return BAD_VALUE; 2413 2414 if (!GLExtensions::getInstance().haveFramebufferObject()) 2415 return INVALID_OPERATION; 2416 2417 class MessageCaptureScreen : public MessageBase { 2418 SurfaceFlinger* flinger; 2419 DisplayID dpy; 2420 sp<IMemoryHeap>* heap; 2421 uint32_t* w; 2422 uint32_t* h; 2423 PixelFormat* f; 2424 uint32_t sw; 2425 uint32_t sh; 2426 uint32_t minLayerZ; 2427 uint32_t maxLayerZ; 2428 status_t result; 2429 public: 2430 MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy, 2431 sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f, 2432 uint32_t sw, uint32_t sh, 2433 uint32_t minLayerZ, uint32_t maxLayerZ) 2434 : flinger(flinger), dpy(dpy), 2435 heap(heap), w(w), h(h), f(f), sw(sw), sh(sh), 2436 minLayerZ(minLayerZ), maxLayerZ(maxLayerZ), 2437 result(PERMISSION_DENIED) 2438 { 2439 } 2440 status_t getResult() const { 2441 return result; 2442 } 2443 virtual bool handler() { 2444 Mutex::Autolock _l(flinger->mStateLock); 2445 2446 // if we have secure windows, never allow the screen capture 2447 if (flinger->mSecureFrameBuffer) 2448 return true; 2449 2450 result = flinger->captureScreenImplLocked(dpy, 2451 heap, w, h, f, sw, sh, minLayerZ, maxLayerZ); 2452 2453 return true; 2454 } 2455 }; 2456 2457 sp<MessageBase> msg = new MessageCaptureScreen(this, 2458 dpy, heap, width, height, format, sw, sh, minLayerZ, maxLayerZ); 2459 status_t res = postMessageSync(msg); 2460 if (res == NO_ERROR) { 2461 res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult(); 2462 } 2463 return res; 2464} 2465 2466// --------------------------------------------------------------------------- 2467 2468sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const 2469{ 2470 sp<Layer> result; 2471 Mutex::Autolock _l(mStateLock); 2472 result = mLayerMap.valueFor( sur->asBinder() ).promote(); 2473 return result; 2474} 2475 2476// --------------------------------------------------------------------------- 2477 2478Client::Client(const sp<SurfaceFlinger>& flinger) 2479 : mFlinger(flinger), mNameGenerator(1) 2480{ 2481} 2482 2483Client::~Client() 2484{ 2485 const size_t count = mLayers.size(); 2486 for (size_t i=0 ; i<count ; i++) { 2487 sp<LayerBaseClient> layer(mLayers.valueAt(i).promote()); 2488 if (layer != 0) { 2489 mFlinger->removeLayer(layer); 2490 } 2491 } 2492} 2493 2494status_t Client::initCheck() const { 2495 return NO_ERROR; 2496} 2497 2498size_t Client::attachLayer(const sp<LayerBaseClient>& layer) 2499{ 2500 Mutex::Autolock _l(mLock); 2501 size_t name = mNameGenerator++; 2502 mLayers.add(name, layer); 2503 return name; 2504} 2505 2506void Client::detachLayer(const LayerBaseClient* layer) 2507{ 2508 Mutex::Autolock _l(mLock); 2509 // we do a linear search here, because this doesn't happen often 2510 const size_t count = mLayers.size(); 2511 for (size_t i=0 ; i<count ; i++) { 2512 if (mLayers.valueAt(i) == layer) { 2513 mLayers.removeItemsAt(i, 1); 2514 break; 2515 } 2516 } 2517} 2518sp<LayerBaseClient> Client::getLayerUser(int32_t i) const 2519{ 2520 Mutex::Autolock _l(mLock); 2521 sp<LayerBaseClient> lbc; 2522 wp<LayerBaseClient> layer(mLayers.valueFor(i)); 2523 if (layer != 0) { 2524 lbc = layer.promote(); 2525 ALOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i)); 2526 } 2527 return lbc; 2528} 2529 2530 2531status_t Client::onTransact( 2532 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 2533{ 2534 // these must be checked 2535 IPCThreadState* ipc = IPCThreadState::self(); 2536 const int pid = ipc->getCallingPid(); 2537 const int uid = ipc->getCallingUid(); 2538 const int self_pid = getpid(); 2539 if (CC_UNLIKELY(pid != self_pid && uid != AID_GRAPHICS && uid != 0)) { 2540 // we're called from a different process, do the real check 2541 if (!PermissionCache::checkCallingPermission(sAccessSurfaceFlinger)) 2542 { 2543 ALOGE("Permission Denial: " 2544 "can't openGlobalTransaction pid=%d, uid=%d", pid, uid); 2545 return PERMISSION_DENIED; 2546 } 2547 } 2548 return BnSurfaceComposerClient::onTransact(code, data, reply, flags); 2549} 2550 2551 2552sp<ISurface> Client::createSurface( 2553 ISurfaceComposerClient::surface_data_t* params, 2554 const String8& name, 2555 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2556 uint32_t flags) 2557{ 2558 /* 2559 * createSurface must be called from the GL thread so that it can 2560 * have access to the GL context. 2561 */ 2562 2563 class MessageCreateSurface : public MessageBase { 2564 sp<ISurface> result; 2565 SurfaceFlinger* flinger; 2566 ISurfaceComposerClient::surface_data_t* params; 2567 Client* client; 2568 const String8& name; 2569 DisplayID display; 2570 uint32_t w, h; 2571 PixelFormat format; 2572 uint32_t flags; 2573 public: 2574 MessageCreateSurface(SurfaceFlinger* flinger, 2575 ISurfaceComposerClient::surface_data_t* params, 2576 const String8& name, Client* client, 2577 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2578 uint32_t flags) 2579 : flinger(flinger), params(params), client(client), name(name), 2580 display(display), w(w), h(h), format(format), flags(flags) 2581 { 2582 } 2583 sp<ISurface> getResult() const { return result; } 2584 virtual bool handler() { 2585 result = flinger->createSurface(params, name, client, 2586 display, w, h, format, flags); 2587 return true; 2588 } 2589 }; 2590 2591 sp<MessageBase> msg = new MessageCreateSurface(mFlinger.get(), 2592 params, name, this, display, w, h, format, flags); 2593 mFlinger->postMessageSync(msg); 2594 return static_cast<MessageCreateSurface*>( msg.get() )->getResult(); 2595} 2596status_t Client::destroySurface(SurfaceID sid) { 2597 return mFlinger->removeSurface(this, sid); 2598} 2599 2600// --------------------------------------------------------------------------- 2601 2602GraphicBufferAlloc::GraphicBufferAlloc() {} 2603 2604GraphicBufferAlloc::~GraphicBufferAlloc() {} 2605 2606sp<GraphicBuffer> GraphicBufferAlloc::createGraphicBuffer(uint32_t w, uint32_t h, 2607 PixelFormat format, uint32_t usage, status_t* error) { 2608 sp<GraphicBuffer> graphicBuffer(new GraphicBuffer(w, h, format, usage)); 2609 status_t err = graphicBuffer->initCheck(); 2610 *error = err; 2611 if (err != 0 || graphicBuffer->handle == 0) { 2612 if (err == NO_MEMORY) { 2613 GraphicBuffer::dumpAllocationsToSystemLog(); 2614 } 2615 ALOGE("GraphicBufferAlloc::createGraphicBuffer(w=%d, h=%d) " 2616 "failed (%s), handle=%p", 2617 w, h, strerror(-err), graphicBuffer->handle); 2618 return 0; 2619 } 2620 return graphicBuffer; 2621} 2622 2623// --------------------------------------------------------------------------- 2624 2625GraphicPlane::GraphicPlane() 2626 : mHw(0) 2627{ 2628} 2629 2630GraphicPlane::~GraphicPlane() { 2631 delete mHw; 2632} 2633 2634bool GraphicPlane::initialized() const { 2635 return mHw ? true : false; 2636} 2637 2638int GraphicPlane::getWidth() const { 2639 return mWidth; 2640} 2641 2642int GraphicPlane::getHeight() const { 2643 return mHeight; 2644} 2645 2646void GraphicPlane::setDisplayHardware(DisplayHardware *hw) 2647{ 2648 mHw = hw; 2649 2650 // initialize the display orientation transform. 2651 // it's a constant that should come from the display driver. 2652 int displayOrientation = ISurfaceComposer::eOrientationDefault; 2653 char property[PROPERTY_VALUE_MAX]; 2654 if (property_get("ro.sf.hwrotation", property, NULL) > 0) { 2655 //displayOrientation 2656 switch (atoi(property)) { 2657 case 90: 2658 displayOrientation = ISurfaceComposer::eOrientation90; 2659 break; 2660 case 270: 2661 displayOrientation = ISurfaceComposer::eOrientation270; 2662 break; 2663 } 2664 } 2665 2666 const float w = hw->getWidth(); 2667 const float h = hw->getHeight(); 2668 GraphicPlane::orientationToTransfrom(displayOrientation, w, h, 2669 &mDisplayTransform); 2670 if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) { 2671 mDisplayWidth = h; 2672 mDisplayHeight = w; 2673 } else { 2674 mDisplayWidth = w; 2675 mDisplayHeight = h; 2676 } 2677 2678 setOrientation(ISurfaceComposer::eOrientationDefault); 2679} 2680 2681status_t GraphicPlane::orientationToTransfrom( 2682 int orientation, int w, int h, Transform* tr) 2683{ 2684 uint32_t flags = 0; 2685 switch (orientation) { 2686 case ISurfaceComposer::eOrientationDefault: 2687 flags = Transform::ROT_0; 2688 break; 2689 case ISurfaceComposer::eOrientation90: 2690 flags = Transform::ROT_90; 2691 break; 2692 case ISurfaceComposer::eOrientation180: 2693 flags = Transform::ROT_180; 2694 break; 2695 case ISurfaceComposer::eOrientation270: 2696 flags = Transform::ROT_270; 2697 break; 2698 default: 2699 return BAD_VALUE; 2700 } 2701 tr->set(flags, w, h); 2702 return NO_ERROR; 2703} 2704 2705status_t GraphicPlane::setOrientation(int orientation) 2706{ 2707 // If the rotation can be handled in hardware, this is where 2708 // the magic should happen. 2709 2710 const DisplayHardware& hw(displayHardware()); 2711 const float w = mDisplayWidth; 2712 const float h = mDisplayHeight; 2713 mWidth = int(w); 2714 mHeight = int(h); 2715 2716 Transform orientationTransform; 2717 GraphicPlane::orientationToTransfrom(orientation, w, h, 2718 &orientationTransform); 2719 if (orientation & ISurfaceComposer::eOrientationSwapMask) { 2720 mWidth = int(h); 2721 mHeight = int(w); 2722 } 2723 2724 mOrientation = orientation; 2725 mGlobalTransform = mDisplayTransform * orientationTransform; 2726 return NO_ERROR; 2727} 2728 2729const DisplayHardware& GraphicPlane::displayHardware() const { 2730 return *mHw; 2731} 2732 2733DisplayHardware& GraphicPlane::editDisplayHardware() { 2734 return *mHw; 2735} 2736 2737const Transform& GraphicPlane::transform() const { 2738 return mGlobalTransform; 2739} 2740 2741EGLDisplay GraphicPlane::getEGLDisplay() const { 2742 return mHw->getEGLDisplay(); 2743} 2744 2745// --------------------------------------------------------------------------- 2746 2747}; // namespace android 2748