SurfaceFlinger.cpp revision 25e66fc324bbc004fa8902b2d4699e41bb601104
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 setOrientation(0, eOrientationDefault, 0); 192 193 // restart the boot-animation 194 property_set("ctl.start", "bootanim"); 195} 196 197void SurfaceFlinger::onFirstRef() 198{ 199 run("SurfaceFlinger", PRIORITY_URGENT_DISPLAY); 200 201 // Wait for the main thread to be done with its initialization 202 mReadyToRunBarrier.wait(); 203} 204 205static inline uint16_t pack565(int r, int g, int b) { 206 return (r<<11)|(g<<5)|b; 207} 208 209status_t SurfaceFlinger::readyToRun() 210{ 211 ALOGI( "SurfaceFlinger's main thread ready to run. " 212 "Initializing graphics H/W..."); 213 214 // we only support one display currently 215 int dpy = 0; 216 217 { 218 // initialize the main display 219 GraphicPlane& plane(graphicPlane(dpy)); 220 DisplayHardware* const hw = new DisplayHardware(this, dpy); 221 plane.setDisplayHardware(hw); 222 } 223 224 // create the shared control-block 225 mServerHeap = new MemoryHeapBase(4096, 226 MemoryHeapBase::READ_ONLY, "SurfaceFlinger read-only heap"); 227 ALOGE_IF(mServerHeap==0, "can't create shared memory dealer"); 228 229 mServerCblk = static_cast<surface_flinger_cblk_t*>(mServerHeap->getBase()); 230 ALOGE_IF(mServerCblk==0, "can't get to shared control block's address"); 231 232 new(mServerCblk) surface_flinger_cblk_t; 233 234 // initialize primary screen 235 // (other display should be initialized in the same manner, but 236 // asynchronously, as they could come and go. None of this is supported 237 // yet). 238 const GraphicPlane& plane(graphicPlane(dpy)); 239 const DisplayHardware& hw = plane.displayHardware(); 240 const uint32_t w = hw.getWidth(); 241 const uint32_t h = hw.getHeight(); 242 const uint32_t f = hw.getFormat(); 243 hw.makeCurrent(); 244 245 // initialize the shared control block 246 mServerCblk->connected |= 1<<dpy; 247 display_cblk_t* dcblk = mServerCblk->displays + dpy; 248 memset(dcblk, 0, sizeof(display_cblk_t)); 249 dcblk->w = plane.getWidth(); 250 dcblk->h = plane.getHeight(); 251 dcblk->format = f; 252 dcblk->orientation = ISurfaceComposer::eOrientationDefault; 253 dcblk->xdpi = hw.getDpiX(); 254 dcblk->ydpi = hw.getDpiY(); 255 dcblk->fps = hw.getRefreshRate(); 256 dcblk->density = hw.getDensity(); 257 258 // Initialize OpenGL|ES 259 glPixelStorei(GL_UNPACK_ALIGNMENT, 4); 260 glPixelStorei(GL_PACK_ALIGNMENT, 4); 261 glEnableClientState(GL_VERTEX_ARRAY); 262 glEnable(GL_SCISSOR_TEST); 263 glShadeModel(GL_FLAT); 264 glDisable(GL_DITHER); 265 glDisable(GL_CULL_FACE); 266 267 const uint16_t g0 = pack565(0x0F,0x1F,0x0F); 268 const uint16_t g1 = pack565(0x17,0x2f,0x17); 269 const uint16_t wormholeTexData[4] = { g0, g1, g1, g0 }; 270 glGenTextures(1, &mWormholeTexName); 271 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 272 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 273 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 274 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 275 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 276 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, 277 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, wormholeTexData); 278 279 const uint16_t protTexData[] = { pack565(0x03, 0x03, 0x03) }; 280 glGenTextures(1, &mProtectedTexName); 281 glBindTexture(GL_TEXTURE_2D, mProtectedTexName); 282 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 283 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 284 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 285 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 286 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1, 1, 0, 287 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, protTexData); 288 289 glViewport(0, 0, w, h); 290 glMatrixMode(GL_PROJECTION); 291 glLoadIdentity(); 292 // put the origin in the left-bottom corner 293 glOrthof(0, w, 0, h, 0, 1); // l=0, r=w ; b=0, t=h 294 295 296 // start the EventThread 297 mEventThread = new EventThread(this); 298 299 /* 300 * We're now ready to accept clients... 301 */ 302 303 mReadyToRunBarrier.open(); 304 305 // start boot animation 306 property_set("ctl.start", "bootanim"); 307 308 return NO_ERROR; 309} 310 311// ---------------------------------------------------------------------------- 312#if 0 313#pragma mark - 314#pragma mark Events Handler 315#endif 316 317void SurfaceFlinger::waitForEvent() { 318 mEventQueue.waitMessage(); 319} 320 321void SurfaceFlinger::signalEvent() { 322 mEventQueue.invalidate(); 323} 324 325status_t SurfaceFlinger::postMessageAsync(const sp<MessageBase>& msg, 326 nsecs_t reltime, uint32_t flags) { 327 return mEventQueue.postMessage(msg, reltime); 328} 329 330status_t SurfaceFlinger::postMessageSync(const sp<MessageBase>& msg, 331 nsecs_t reltime, uint32_t flags) { 332 status_t res = mEventQueue.postMessage(msg, reltime); 333 if (res == NO_ERROR) { 334 msg->wait(); 335 } 336 return res; 337} 338 339// ---------------------------------------------------------------------------- 340 341bool SurfaceFlinger::authenticateSurfaceTexture( 342 const sp<ISurfaceTexture>& surfaceTexture) const { 343 Mutex::Autolock _l(mStateLock); 344 sp<IBinder> surfaceTextureBinder(surfaceTexture->asBinder()); 345 346 // Check the visible layer list for the ISurface 347 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 348 size_t count = currentLayers.size(); 349 for (size_t i=0 ; i<count ; i++) { 350 const sp<LayerBase>& layer(currentLayers[i]); 351 sp<LayerBaseClient> lbc(layer->getLayerBaseClient()); 352 if (lbc != NULL) { 353 wp<IBinder> lbcBinder = lbc->getSurfaceTextureBinder(); 354 if (lbcBinder == surfaceTextureBinder) { 355 return true; 356 } 357 } 358 } 359 360 // Check the layers in the purgatory. This check is here so that if a 361 // SurfaceTexture gets destroyed before all the clients are done using it, 362 // the error will not be reported as "surface XYZ is not authenticated", but 363 // will instead fail later on when the client tries to use the surface, 364 // which should be reported as "surface XYZ returned an -ENODEV". The 365 // purgatorized layers are no less authentic than the visible ones, so this 366 // should not cause any harm. 367 size_t purgatorySize = mLayerPurgatory.size(); 368 for (size_t i=0 ; i<purgatorySize ; i++) { 369 const sp<LayerBase>& layer(mLayerPurgatory.itemAt(i)); 370 sp<LayerBaseClient> lbc(layer->getLayerBaseClient()); 371 if (lbc != NULL) { 372 wp<IBinder> lbcBinder = lbc->getSurfaceTextureBinder(); 373 if (lbcBinder == surfaceTextureBinder) { 374 return true; 375 } 376 } 377 } 378 379 return false; 380} 381 382// ---------------------------------------------------------------------------- 383 384sp<IDisplayEventConnection> SurfaceFlinger::createDisplayEventConnection() { 385 sp<DisplayEventConnection> result(new DisplayEventConnection(mEventThread)); 386 return result; 387} 388 389// ---------------------------------------------------------------------------- 390#if 0 391#pragma mark - 392#pragma mark Main loop 393#endif 394 395bool SurfaceFlinger::threadLoop() 396{ 397 waitForEvent(); 398 399 // check for transactions 400 if (CC_UNLIKELY(mConsoleSignals)) { 401 handleConsoleEvents(); 402 } 403 404 // if we're in a global transaction, don't do anything. 405 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 406 uint32_t transactionFlags = peekTransactionFlags(mask); 407 if (CC_UNLIKELY(transactionFlags)) { 408 handleTransaction(transactionFlags); 409 } 410 411 // post surfaces (if needed) 412 handlePageFlip(); 413 414 if (mDirtyRegion.isEmpty()) { 415 // nothing new to do. 416 return true; 417 } 418 419 if (CC_UNLIKELY(mHwWorkListDirty)) { 420 // build the h/w work list 421 handleWorkList(); 422 } 423 424 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 425 if (CC_LIKELY(hw.canDraw())) { 426 // repaint the framebuffer (if needed) 427 handleRepaint(); 428 // inform the h/w that we're done compositing 429 hw.compositionComplete(); 430 postFramebuffer(); 431 } else { 432 // pretend we did the post 433 hw.compositionComplete(); 434 hw.waitForRefresh(); 435 } 436 return true; 437} 438 439void SurfaceFlinger::postFramebuffer() 440{ 441 // this should never happen. we do the flip anyways so we don't 442 // risk to cause a deadlock with hwc 443 ALOGW_IF(mSwapRegion.isEmpty(), "mSwapRegion is empty"); 444 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 445 const nsecs_t now = systemTime(); 446 mDebugInSwapBuffers = now; 447 hw.flip(mSwapRegion); 448 449 size_t numLayers = mVisibleLayersSortedByZ.size(); 450 for (size_t i = 0; i < numLayers; i++) { 451 mVisibleLayersSortedByZ[i]->onLayerDisplayed(); 452 } 453 454 mLastSwapBufferTime = systemTime() - now; 455 mDebugInSwapBuffers = 0; 456 mSwapRegion.clear(); 457} 458 459void SurfaceFlinger::handleConsoleEvents() 460{ 461 // something to do with the console 462 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 463 464 int what = android_atomic_and(0, &mConsoleSignals); 465 if (what & eConsoleAcquired) { 466 hw.acquireScreen(); 467 // this is a temporary work-around, eventually this should be called 468 // by the power-manager 469 SurfaceFlinger::turnElectronBeamOn(mElectronBeamAnimationMode); 470 } 471 472 if (what & eConsoleReleased) { 473 if (hw.isScreenAcquired()) { 474 hw.releaseScreen(); 475 } 476 } 477 478 mDirtyRegion.set(hw.bounds()); 479} 480 481void SurfaceFlinger::handleTransaction(uint32_t transactionFlags) 482{ 483 Mutex::Autolock _l(mStateLock); 484 const nsecs_t now = systemTime(); 485 mDebugInTransaction = now; 486 487 // Here we're guaranteed that some transaction flags are set 488 // so we can call handleTransactionLocked() unconditionally. 489 // We call getTransactionFlags(), which will also clear the flags, 490 // with mStateLock held to guarantee that mCurrentState won't change 491 // until the transaction is committed. 492 493 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 494 transactionFlags = getTransactionFlags(mask); 495 handleTransactionLocked(transactionFlags); 496 497 mLastTransactionTime = systemTime() - now; 498 mDebugInTransaction = 0; 499 invalidateHwcGeometry(); 500 // here the transaction has been committed 501} 502 503void SurfaceFlinger::handleTransactionLocked(uint32_t transactionFlags) 504{ 505 const LayerVector& currentLayers(mCurrentState.layersSortedByZ); 506 const size_t count = currentLayers.size(); 507 508 /* 509 * Traversal of the children 510 * (perform the transaction for each of them if needed) 511 */ 512 513 const bool layersNeedTransaction = transactionFlags & eTraversalNeeded; 514 if (layersNeedTransaction) { 515 for (size_t i=0 ; i<count ; i++) { 516 const sp<LayerBase>& layer = currentLayers[i]; 517 uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded); 518 if (!trFlags) continue; 519 520 const uint32_t flags = layer->doTransaction(0); 521 if (flags & Layer::eVisibleRegion) 522 mVisibleRegionsDirty = true; 523 } 524 } 525 526 /* 527 * Perform our own transaction if needed 528 */ 529 530 if (transactionFlags & eTransactionNeeded) { 531 if (mCurrentState.orientation != mDrawingState.orientation) { 532 // the orientation has changed, recompute all visible regions 533 // and invalidate everything. 534 535 const int dpy = 0; 536 const int orientation = mCurrentState.orientation; 537 // Currently unused: const uint32_t flags = mCurrentState.orientationFlags; 538 GraphicPlane& plane(graphicPlane(dpy)); 539 plane.setOrientation(orientation); 540 541 // update the shared control block 542 const DisplayHardware& hw(plane.displayHardware()); 543 volatile display_cblk_t* dcblk = mServerCblk->displays + dpy; 544 dcblk->orientation = orientation; 545 dcblk->w = plane.getWidth(); 546 dcblk->h = plane.getHeight(); 547 548 mVisibleRegionsDirty = true; 549 mDirtyRegion.set(hw.bounds()); 550 } 551 552 if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) { 553 // layers have been added 554 mVisibleRegionsDirty = true; 555 } 556 557 // some layers might have been removed, so 558 // we need to update the regions they're exposing. 559 if (mLayersRemoved) { 560 mLayersRemoved = false; 561 mVisibleRegionsDirty = true; 562 const LayerVector& previousLayers(mDrawingState.layersSortedByZ); 563 const size_t count = previousLayers.size(); 564 for (size_t i=0 ; i<count ; i++) { 565 const sp<LayerBase>& layer(previousLayers[i]); 566 if (currentLayers.indexOf( layer ) < 0) { 567 // this layer is not visible anymore 568 mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen); 569 } 570 } 571 } 572 } 573 574 commitTransaction(); 575} 576 577void SurfaceFlinger::computeVisibleRegions( 578 const LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion) 579{ 580 const GraphicPlane& plane(graphicPlane(0)); 581 const Transform& planeTransform(plane.transform()); 582 const DisplayHardware& hw(plane.displayHardware()); 583 const Region screenRegion(hw.bounds()); 584 585 Region aboveOpaqueLayers; 586 Region aboveCoveredLayers; 587 Region dirty; 588 589 bool secureFrameBuffer = false; 590 591 size_t i = currentLayers.size(); 592 while (i--) { 593 const sp<LayerBase>& layer = currentLayers[i]; 594 layer->validateVisibility(planeTransform); 595 596 // start with the whole surface at its current location 597 const Layer::State& s(layer->drawingState()); 598 599 /* 600 * opaqueRegion: area of a surface that is fully opaque. 601 */ 602 Region opaqueRegion; 603 604 /* 605 * visibleRegion: area of a surface that is visible on screen 606 * and not fully transparent. This is essentially the layer's 607 * footprint minus the opaque regions above it. 608 * Areas covered by a translucent surface are considered visible. 609 */ 610 Region visibleRegion; 611 612 /* 613 * coveredRegion: area of a surface that is covered by all 614 * visible regions above it (which includes the translucent areas). 615 */ 616 Region coveredRegion; 617 618 619 // handle hidden surfaces by setting the visible region to empty 620 if (CC_LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) { 621 const bool translucent = !layer->isOpaque(); 622 const Rect bounds(layer->visibleBounds()); 623 visibleRegion.set(bounds); 624 visibleRegion.andSelf(screenRegion); 625 if (!visibleRegion.isEmpty()) { 626 // Remove the transparent area from the visible region 627 if (translucent) { 628 visibleRegion.subtractSelf(layer->transparentRegionScreen); 629 } 630 631 // compute the opaque region 632 const int32_t layerOrientation = layer->getOrientation(); 633 if (s.alpha==255 && !translucent && 634 ((layerOrientation & Transform::ROT_INVALID) == false)) { 635 // the opaque region is the layer's footprint 636 opaqueRegion = visibleRegion; 637 } 638 } 639 } 640 641 // Clip the covered region to the visible region 642 coveredRegion = aboveCoveredLayers.intersect(visibleRegion); 643 644 // Update aboveCoveredLayers for next (lower) layer 645 aboveCoveredLayers.orSelf(visibleRegion); 646 647 // subtract the opaque region covered by the layers above us 648 visibleRegion.subtractSelf(aboveOpaqueLayers); 649 650 // compute this layer's dirty region 651 if (layer->contentDirty) { 652 // we need to invalidate the whole region 653 dirty = visibleRegion; 654 // as well, as the old visible region 655 dirty.orSelf(layer->visibleRegionScreen); 656 layer->contentDirty = false; 657 } else { 658 /* compute the exposed region: 659 * the exposed region consists of two components: 660 * 1) what's VISIBLE now and was COVERED before 661 * 2) what's EXPOSED now less what was EXPOSED before 662 * 663 * note that (1) is conservative, we start with the whole 664 * visible region but only keep what used to be covered by 665 * something -- which mean it may have been exposed. 666 * 667 * (2) handles areas that were not covered by anything but got 668 * exposed because of a resize. 669 */ 670 const Region newExposed = visibleRegion - coveredRegion; 671 const Region oldVisibleRegion = layer->visibleRegionScreen; 672 const Region oldCoveredRegion = layer->coveredRegionScreen; 673 const Region oldExposed = oldVisibleRegion - oldCoveredRegion; 674 dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed); 675 } 676 dirty.subtractSelf(aboveOpaqueLayers); 677 678 // accumulate to the screen dirty region 679 dirtyRegion.orSelf(dirty); 680 681 // Update aboveOpaqueLayers for next (lower) layer 682 aboveOpaqueLayers.orSelf(opaqueRegion); 683 684 // Store the visible region is screen space 685 layer->setVisibleRegion(visibleRegion); 686 layer->setCoveredRegion(coveredRegion); 687 688 // If a secure layer is partially visible, lock-down the screen! 689 if (layer->isSecure() && !visibleRegion.isEmpty()) { 690 secureFrameBuffer = true; 691 } 692 } 693 694 // invalidate the areas where a layer was removed 695 dirtyRegion.orSelf(mDirtyRegionRemovedLayer); 696 mDirtyRegionRemovedLayer.clear(); 697 698 mSecureFrameBuffer = secureFrameBuffer; 699 opaqueRegion = aboveOpaqueLayers; 700} 701 702 703void SurfaceFlinger::commitTransaction() 704{ 705 if (!mLayersPendingRemoval.isEmpty()) { 706 // Notify removed layers now that they can't be drawn from 707 for (size_t i = 0; i < mLayersPendingRemoval.size(); i++) { 708 mLayersPendingRemoval[i]->onRemoved(); 709 } 710 mLayersPendingRemoval.clear(); 711 } 712 713 mDrawingState = mCurrentState; 714 mTransationPending = false; 715 mTransactionCV.broadcast(); 716} 717 718void SurfaceFlinger::handlePageFlip() 719{ 720 bool visibleRegions = mVisibleRegionsDirty; 721 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 722 visibleRegions |= lockPageFlip(currentLayers); 723 724 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 725 const Region screenRegion(hw.bounds()); 726 if (visibleRegions) { 727 Region opaqueRegion; 728 computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion); 729 730 /* 731 * rebuild the visible layer list 732 */ 733 const size_t count = currentLayers.size(); 734 mVisibleLayersSortedByZ.clear(); 735 mVisibleLayersSortedByZ.setCapacity(count); 736 for (size_t i=0 ; i<count ; i++) { 737 if (!currentLayers[i]->visibleRegionScreen.isEmpty()) 738 mVisibleLayersSortedByZ.add(currentLayers[i]); 739 } 740 741 mWormholeRegion = screenRegion.subtract(opaqueRegion); 742 mVisibleRegionsDirty = false; 743 invalidateHwcGeometry(); 744 } 745 746 unlockPageFlip(currentLayers); 747 748 mDirtyRegion.orSelf(getAndClearInvalidateRegion()); 749 mDirtyRegion.andSelf(screenRegion); 750} 751 752void SurfaceFlinger::invalidateHwcGeometry() 753{ 754 mHwWorkListDirty = true; 755} 756 757bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers) 758{ 759 bool recomputeVisibleRegions = false; 760 size_t count = currentLayers.size(); 761 sp<LayerBase> const* layers = currentLayers.array(); 762 for (size_t i=0 ; i<count ; i++) { 763 const sp<LayerBase>& layer(layers[i]); 764 layer->lockPageFlip(recomputeVisibleRegions); 765 } 766 return recomputeVisibleRegions; 767} 768 769void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers) 770{ 771 const GraphicPlane& plane(graphicPlane(0)); 772 const Transform& planeTransform(plane.transform()); 773 size_t count = currentLayers.size(); 774 sp<LayerBase> const* layers = currentLayers.array(); 775 for (size_t i=0 ; i<count ; i++) { 776 const sp<LayerBase>& layer(layers[i]); 777 layer->unlockPageFlip(planeTransform, mDirtyRegion); 778 } 779} 780 781void SurfaceFlinger::handleWorkList() 782{ 783 mHwWorkListDirty = false; 784 HWComposer& hwc(graphicPlane(0).displayHardware().getHwComposer()); 785 if (hwc.initCheck() == NO_ERROR) { 786 const Vector< sp<LayerBase> >& currentLayers(mVisibleLayersSortedByZ); 787 const size_t count = currentLayers.size(); 788 hwc.createWorkList(count); 789 hwc_layer_t* const cur(hwc.getLayers()); 790 for (size_t i=0 ; cur && i<count ; i++) { 791 currentLayers[i]->setGeometry(&cur[i]); 792 if (mDebugDisableHWC || mDebugRegion) { 793 cur[i].compositionType = HWC_FRAMEBUFFER; 794 cur[i].flags |= HWC_SKIP_LAYER; 795 } 796 } 797 } 798} 799 800void SurfaceFlinger::handleRepaint() 801{ 802 // compute the invalid region 803 mSwapRegion.orSelf(mDirtyRegion); 804 805 if (CC_UNLIKELY(mDebugRegion)) { 806 debugFlashRegions(); 807 } 808 809 // set the frame buffer 810 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 811 glMatrixMode(GL_MODELVIEW); 812 glLoadIdentity(); 813 814 uint32_t flags = hw.getFlags(); 815 if ((flags & DisplayHardware::SWAP_RECTANGLE) || 816 (flags & DisplayHardware::BUFFER_PRESERVED)) 817 { 818 // we can redraw only what's dirty, but since SWAP_RECTANGLE only 819 // takes a rectangle, we must make sure to update that whole 820 // rectangle in that case 821 if (flags & DisplayHardware::SWAP_RECTANGLE) { 822 // TODO: we really should be able to pass a region to 823 // SWAP_RECTANGLE so that we don't have to redraw all this. 824 mDirtyRegion.set(mSwapRegion.bounds()); 825 } else { 826 // in the BUFFER_PRESERVED case, obviously, we can update only 827 // what's needed and nothing more. 828 // NOTE: this is NOT a common case, as preserving the backbuffer 829 // is costly and usually involves copying the whole update back. 830 } 831 } else { 832 if (flags & DisplayHardware::PARTIAL_UPDATES) { 833 // We need to redraw the rectangle that will be updated 834 // (pushed to the framebuffer). 835 // This is needed because PARTIAL_UPDATES only takes one 836 // rectangle instead of a region (see DisplayHardware::flip()) 837 mDirtyRegion.set(mSwapRegion.bounds()); 838 } else { 839 // we need to redraw everything (the whole screen) 840 mDirtyRegion.set(hw.bounds()); 841 mSwapRegion = mDirtyRegion; 842 } 843 } 844 845 setupHardwareComposer(mDirtyRegion); 846 composeSurfaces(mDirtyRegion); 847 848 // update the swap region and clear the dirty region 849 mSwapRegion.orSelf(mDirtyRegion); 850 mDirtyRegion.clear(); 851} 852 853void SurfaceFlinger::setupHardwareComposer(Region& dirtyInOut) 854{ 855 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 856 HWComposer& hwc(hw.getHwComposer()); 857 hwc_layer_t* const cur(hwc.getLayers()); 858 if (!cur) { 859 return; 860 } 861 862 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 863 size_t count = layers.size(); 864 865 ALOGE_IF(hwc.getNumLayers() != count, 866 "HAL number of layers (%d) doesn't match surfaceflinger (%d)", 867 hwc.getNumLayers(), count); 868 869 // just to be extra-safe, use the smallest count 870 if (hwc.initCheck() == NO_ERROR) { 871 count = count < hwc.getNumLayers() ? count : hwc.getNumLayers(); 872 } 873 874 /* 875 * update the per-frame h/w composer data for each layer 876 * and build the transparent region of the FB 877 */ 878 for (size_t i=0 ; i<count ; i++) { 879 const sp<LayerBase>& layer(layers[i]); 880 layer->setPerFrameData(&cur[i]); 881 } 882 const size_t fbLayerCount = hwc.getLayerCount(HWC_FRAMEBUFFER); 883 status_t err = hwc.prepare(); 884 ALOGE_IF(err, "HWComposer::prepare failed (%s)", strerror(-err)); 885 886 if (err == NO_ERROR) { 887 // what's happening here is tricky. 888 // we want to clear all the layers with the CLEAR_FB flags 889 // that are opaque. 890 // however, since some GPU are efficient at preserving 891 // the backbuffer, we want to take advantage of that so we do the 892 // clear only in the dirty region (other areas will be preserved 893 // on those GPUs). 894 // NOTE: on non backbuffer preserving GPU, the dirty region 895 // has already been expanded as needed, so the code is correct 896 // there too. 897 // 898 // However, the content of the framebuffer cannot be trusted when 899 // we switch to/from FB/OVERLAY, in which case we need to 900 // expand the dirty region to those areas too. 901 // 902 // Note also that there is a special case when switching from 903 // "no layers in FB" to "some layers in FB", where we need to redraw 904 // the entire FB, since some areas might contain uninitialized 905 // data. 906 // 907 // Also we want to make sure to not clear areas that belong to 908 // layers above that won't redraw (we would just be erasing them), 909 // that is, we can't erase anything outside the dirty region. 910 911 Region transparent; 912 913 if (!fbLayerCount && hwc.getLayerCount(HWC_FRAMEBUFFER)) { 914 transparent.set(hw.getBounds()); 915 dirtyInOut = transparent; 916 } else { 917 for (size_t i=0 ; i<count ; i++) { 918 const sp<LayerBase>& layer(layers[i]); 919 if ((cur[i].hints & HWC_HINT_CLEAR_FB) && layer->isOpaque()) { 920 transparent.orSelf(layer->visibleRegionScreen); 921 } 922 bool isOverlay = (cur[i].compositionType != HWC_FRAMEBUFFER); 923 if (isOverlay != layer->isOverlay()) { 924 // we transitioned to/from overlay, so add this layer 925 // to the dirty region so the framebuffer can be either 926 // cleared or redrawn. 927 dirtyInOut.orSelf(layer->visibleRegionScreen); 928 } 929 layer->setOverlay(isOverlay); 930 } 931 // don't erase stuff outside the dirty region 932 transparent.andSelf(dirtyInOut); 933 } 934 935 /* 936 * clear the area of the FB that need to be transparent 937 */ 938 if (!transparent.isEmpty()) { 939 glClearColor(0,0,0,0); 940 Region::const_iterator it = transparent.begin(); 941 Region::const_iterator const end = transparent.end(); 942 const int32_t height = hw.getHeight(); 943 while (it != end) { 944 const Rect& r(*it++); 945 const GLint sy = height - (r.top + r.height()); 946 glScissor(r.left, sy, r.width(), r.height()); 947 glClear(GL_COLOR_BUFFER_BIT); 948 } 949 } 950 } 951} 952 953void SurfaceFlinger::composeSurfaces(const Region& dirty) 954{ 955 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 956 HWComposer& hwc(hw.getHwComposer()); 957 958 const size_t fbLayerCount = hwc.getLayerCount(HWC_FRAMEBUFFER); 959 if (CC_UNLIKELY(fbLayerCount && !mWormholeRegion.isEmpty())) { 960 // should never happen unless the window manager has a bug 961 // draw something... 962 drawWormhole(); 963 } 964 965 /* 966 * and then, render the layers targeted at the framebuffer 967 */ 968 hwc_layer_t* const cur(hwc.getLayers()); 969 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 970 size_t count = layers.size(); 971 for (size_t i=0 ; i<count ; i++) { 972 if (cur && (cur[i].compositionType != HWC_FRAMEBUFFER)) { 973 continue; 974 } 975 const sp<LayerBase>& layer(layers[i]); 976 const Region clip(dirty.intersect(layer->visibleRegionScreen)); 977 if (!clip.isEmpty()) { 978 layer->draw(clip); 979 } 980 } 981} 982 983void SurfaceFlinger::debugFlashRegions() 984{ 985 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 986 const uint32_t flags = hw.getFlags(); 987 const int32_t height = hw.getHeight(); 988 if (mSwapRegion.isEmpty()) { 989 return; 990 } 991 992 if (!((flags & DisplayHardware::SWAP_RECTANGLE) || 993 (flags & DisplayHardware::BUFFER_PRESERVED))) { 994 const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ? 995 mDirtyRegion.bounds() : hw.bounds()); 996 composeSurfaces(repaint); 997 } 998 999 glDisable(GL_TEXTURE_EXTERNAL_OES); 1000 glDisable(GL_TEXTURE_2D); 1001 glDisable(GL_BLEND); 1002 glDisable(GL_SCISSOR_TEST); 1003 1004 static int toggle = 0; 1005 toggle = 1 - toggle; 1006 if (toggle) { 1007 glColor4f(1, 0, 1, 1); 1008 } else { 1009 glColor4f(1, 1, 0, 1); 1010 } 1011 1012 Region::const_iterator it = mDirtyRegion.begin(); 1013 Region::const_iterator const end = mDirtyRegion.end(); 1014 while (it != end) { 1015 const Rect& r = *it++; 1016 GLfloat vertices[][2] = { 1017 { r.left, height - r.top }, 1018 { r.left, height - r.bottom }, 1019 { r.right, height - r.bottom }, 1020 { r.right, height - r.top } 1021 }; 1022 glVertexPointer(2, GL_FLOAT, 0, vertices); 1023 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1024 } 1025 1026 hw.flip(mSwapRegion); 1027 1028 if (mDebugRegion > 1) 1029 usleep(mDebugRegion * 1000); 1030 1031 glEnable(GL_SCISSOR_TEST); 1032} 1033 1034void SurfaceFlinger::drawWormhole() const 1035{ 1036 const Region region(mWormholeRegion.intersect(mDirtyRegion)); 1037 if (region.isEmpty()) 1038 return; 1039 1040 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1041 const int32_t width = hw.getWidth(); 1042 const int32_t height = hw.getHeight(); 1043 1044 if (CC_LIKELY(!mDebugBackground)) { 1045 glClearColor(0,0,0,0); 1046 Region::const_iterator it = region.begin(); 1047 Region::const_iterator const end = region.end(); 1048 while (it != end) { 1049 const Rect& r = *it++; 1050 const GLint sy = height - (r.top + r.height()); 1051 glScissor(r.left, sy, r.width(), r.height()); 1052 glClear(GL_COLOR_BUFFER_BIT); 1053 } 1054 } else { 1055 const GLshort vertices[][2] = { { 0, 0 }, { width, 0 }, 1056 { width, height }, { 0, height } }; 1057 const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } }; 1058 1059 glVertexPointer(2, GL_SHORT, 0, vertices); 1060 glTexCoordPointer(2, GL_SHORT, 0, tcoords); 1061 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1062 1063 glDisable(GL_TEXTURE_EXTERNAL_OES); 1064 glEnable(GL_TEXTURE_2D); 1065 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 1066 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1067 glMatrixMode(GL_TEXTURE); 1068 glLoadIdentity(); 1069 1070 glDisable(GL_BLEND); 1071 1072 glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1); 1073 Region::const_iterator it = region.begin(); 1074 Region::const_iterator const end = region.end(); 1075 while (it != end) { 1076 const Rect& r = *it++; 1077 const GLint sy = height - (r.top + r.height()); 1078 glScissor(r.left, sy, r.width(), r.height()); 1079 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1080 } 1081 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1082 glDisable(GL_TEXTURE_2D); 1083 glLoadIdentity(); 1084 glMatrixMode(GL_MODELVIEW); 1085 } 1086} 1087 1088status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer) 1089{ 1090 Mutex::Autolock _l(mStateLock); 1091 addLayer_l(layer); 1092 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1093 return NO_ERROR; 1094} 1095 1096status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer) 1097{ 1098 ssize_t i = mCurrentState.layersSortedByZ.add(layer); 1099 return (i < 0) ? status_t(i) : status_t(NO_ERROR); 1100} 1101 1102ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client, 1103 const sp<LayerBaseClient>& lbc) 1104{ 1105 // attach this layer to the client 1106 size_t name = client->attachLayer(lbc); 1107 1108 Mutex::Autolock _l(mStateLock); 1109 1110 // add this layer to the current state list 1111 addLayer_l(lbc); 1112 1113 return ssize_t(name); 1114} 1115 1116status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer) 1117{ 1118 Mutex::Autolock _l(mStateLock); 1119 status_t err = purgatorizeLayer_l(layer); 1120 if (err == NO_ERROR) 1121 setTransactionFlags(eTransactionNeeded); 1122 return err; 1123} 1124 1125status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase) 1126{ 1127 sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient()); 1128 if (lbc != 0) { 1129 mLayerMap.removeItem( lbc->getSurfaceBinder() ); 1130 } 1131 ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase); 1132 if (index >= 0) { 1133 mLayersRemoved = true; 1134 return NO_ERROR; 1135 } 1136 return status_t(index); 1137} 1138 1139status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase) 1140{ 1141 // First add the layer to the purgatory list, which makes sure it won't 1142 // go away, then remove it from the main list (through a transaction). 1143 ssize_t err = removeLayer_l(layerBase); 1144 if (err >= 0) { 1145 mLayerPurgatory.add(layerBase); 1146 } 1147 1148 mLayersPendingRemoval.push(layerBase); 1149 1150 // it's possible that we don't find a layer, because it might 1151 // have been destroyed already -- this is not technically an error 1152 // from the user because there is a race between Client::destroySurface(), 1153 // ~Client() and ~ISurface(). 1154 return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err; 1155} 1156 1157status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer) 1158{ 1159 layer->forceVisibilityTransaction(); 1160 setTransactionFlags(eTraversalNeeded); 1161 return NO_ERROR; 1162} 1163 1164uint32_t SurfaceFlinger::peekTransactionFlags(uint32_t flags) 1165{ 1166 return android_atomic_release_load(&mTransactionFlags); 1167} 1168 1169uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags) 1170{ 1171 return android_atomic_and(~flags, &mTransactionFlags) & flags; 1172} 1173 1174uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags) 1175{ 1176 uint32_t old = android_atomic_or(flags, &mTransactionFlags); 1177 if ((old & flags)==0) { // wake the server up 1178 signalEvent(); 1179 } 1180 return old; 1181} 1182 1183 1184void SurfaceFlinger::setTransactionState(const Vector<ComposerState>& state, 1185 int orientation, uint32_t flags) { 1186 Mutex::Autolock _l(mStateLock); 1187 1188 uint32_t transactionFlags = 0; 1189 if (mCurrentState.orientation != orientation) { 1190 if (uint32_t(orientation)<=eOrientation270 || orientation==42) { 1191 mCurrentState.orientation = orientation; 1192 transactionFlags |= eTransactionNeeded; 1193 } else if (orientation != eOrientationUnchanged) { 1194 ALOGW("setTransactionState: ignoring unrecognized orientation: %d", 1195 orientation); 1196 } 1197 } 1198 1199 const size_t count = state.size(); 1200 for (size_t i=0 ; i<count ; i++) { 1201 const ComposerState& s(state[i]); 1202 sp<Client> client( static_cast<Client *>(s.client.get()) ); 1203 transactionFlags |= setClientStateLocked(client, s.state); 1204 } 1205 1206 if (transactionFlags) { 1207 // this triggers the transaction 1208 setTransactionFlags(transactionFlags); 1209 1210 // if this is a synchronous transaction, wait for it to take effect 1211 // before returning. 1212 if (flags & eSynchronous) { 1213 mTransationPending = true; 1214 } 1215 while (mTransationPending) { 1216 status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5)); 1217 if (CC_UNLIKELY(err != NO_ERROR)) { 1218 // just in case something goes wrong in SF, return to the 1219 // called after a few seconds. 1220 ALOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!"); 1221 mTransationPending = false; 1222 break; 1223 } 1224 } 1225 } 1226} 1227 1228int SurfaceFlinger::setOrientation(DisplayID dpy, 1229 int orientation, uint32_t flags) 1230{ 1231 if (CC_UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1232 return BAD_VALUE; 1233 1234 Mutex::Autolock _l(mStateLock); 1235 if (mCurrentState.orientation != orientation) { 1236 if (uint32_t(orientation)<=eOrientation270 || orientation==42) { 1237 mCurrentState.orientationFlags = flags; 1238 mCurrentState.orientation = orientation; 1239 setTransactionFlags(eTransactionNeeded); 1240 mTransactionCV.wait(mStateLock); 1241 } else { 1242 orientation = BAD_VALUE; 1243 } 1244 } 1245 return orientation; 1246} 1247 1248sp<ISurface> SurfaceFlinger::createSurface( 1249 ISurfaceComposerClient::surface_data_t* params, 1250 const String8& name, 1251 const sp<Client>& client, 1252 DisplayID d, uint32_t w, uint32_t h, PixelFormat format, 1253 uint32_t flags) 1254{ 1255 sp<LayerBaseClient> layer; 1256 sp<ISurface> surfaceHandle; 1257 1258 if (int32_t(w|h) < 0) { 1259 ALOGE("createSurface() failed, w or h is negative (w=%d, h=%d)", 1260 int(w), int(h)); 1261 return surfaceHandle; 1262 } 1263 1264 //ALOGD("createSurface for pid %d (%d x %d)", pid, w, h); 1265 sp<Layer> normalLayer; 1266 switch (flags & eFXSurfaceMask) { 1267 case eFXSurfaceNormal: 1268 normalLayer = createNormalSurface(client, d, w, h, flags, format); 1269 layer = normalLayer; 1270 break; 1271 case eFXSurfaceBlur: 1272 // for now we treat Blur as Dim, until we can implement it 1273 // efficiently. 1274 case eFXSurfaceDim: 1275 layer = createDimSurface(client, d, w, h, flags); 1276 break; 1277 case eFXSurfaceScreenshot: 1278 layer = createScreenshotSurface(client, d, w, h, flags); 1279 break; 1280 } 1281 1282 if (layer != 0) { 1283 layer->initStates(w, h, flags); 1284 layer->setName(name); 1285 ssize_t token = addClientLayer(client, layer); 1286 1287 surfaceHandle = layer->getSurface(); 1288 if (surfaceHandle != 0) { 1289 params->token = token; 1290 params->identity = layer->getIdentity(); 1291 if (normalLayer != 0) { 1292 Mutex::Autolock _l(mStateLock); 1293 mLayerMap.add(layer->getSurfaceBinder(), normalLayer); 1294 } 1295 } 1296 1297 setTransactionFlags(eTransactionNeeded); 1298 } 1299 1300 return surfaceHandle; 1301} 1302 1303sp<Layer> SurfaceFlinger::createNormalSurface( 1304 const sp<Client>& client, DisplayID display, 1305 uint32_t w, uint32_t h, uint32_t flags, 1306 PixelFormat& format) 1307{ 1308 // initialize the surfaces 1309 switch (format) { // TODO: take h/w into account 1310 case PIXEL_FORMAT_TRANSPARENT: 1311 case PIXEL_FORMAT_TRANSLUCENT: 1312 format = PIXEL_FORMAT_RGBA_8888; 1313 break; 1314 case PIXEL_FORMAT_OPAQUE: 1315#ifdef NO_RGBX_8888 1316 format = PIXEL_FORMAT_RGB_565; 1317#else 1318 format = PIXEL_FORMAT_RGBX_8888; 1319#endif 1320 break; 1321 } 1322 1323#ifdef NO_RGBX_8888 1324 if (format == PIXEL_FORMAT_RGBX_8888) 1325 format = PIXEL_FORMAT_RGBA_8888; 1326#endif 1327 1328 sp<Layer> layer = new Layer(this, display, client); 1329 status_t err = layer->setBuffers(w, h, format, flags); 1330 if (CC_LIKELY(err != NO_ERROR)) { 1331 ALOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err)); 1332 layer.clear(); 1333 } 1334 return layer; 1335} 1336 1337sp<LayerDim> SurfaceFlinger::createDimSurface( 1338 const sp<Client>& client, DisplayID display, 1339 uint32_t w, uint32_t h, uint32_t flags) 1340{ 1341 sp<LayerDim> layer = new LayerDim(this, display, client); 1342 return layer; 1343} 1344 1345sp<LayerScreenshot> SurfaceFlinger::createScreenshotSurface( 1346 const sp<Client>& client, DisplayID display, 1347 uint32_t w, uint32_t h, uint32_t flags) 1348{ 1349 sp<LayerScreenshot> layer = new LayerScreenshot(this, display, client); 1350 return layer; 1351} 1352 1353status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid) 1354{ 1355 /* 1356 * called by the window manager, when a surface should be marked for 1357 * destruction. 1358 * 1359 * The surface is removed from the current and drawing lists, but placed 1360 * in the purgatory queue, so it's not destroyed right-away (we need 1361 * to wait for all client's references to go away first). 1362 */ 1363 1364 status_t err = NAME_NOT_FOUND; 1365 Mutex::Autolock _l(mStateLock); 1366 sp<LayerBaseClient> layer = client->getLayerUser(sid); 1367 if (layer != 0) { 1368 err = purgatorizeLayer_l(layer); 1369 if (err == NO_ERROR) { 1370 setTransactionFlags(eTransactionNeeded); 1371 } 1372 } 1373 return err; 1374} 1375 1376status_t SurfaceFlinger::destroySurface(const wp<LayerBaseClient>& layer) 1377{ 1378 // called by ~ISurface() when all references are gone 1379 status_t err = NO_ERROR; 1380 sp<LayerBaseClient> l(layer.promote()); 1381 if (l != NULL) { 1382 Mutex::Autolock _l(mStateLock); 1383 err = removeLayer_l(l); 1384 if (err == NAME_NOT_FOUND) { 1385 // The surface wasn't in the current list, which means it was 1386 // removed already, which means it is in the purgatory, 1387 // and need to be removed from there. 1388 ssize_t idx = mLayerPurgatory.remove(l); 1389 ALOGE_IF(idx < 0, 1390 "layer=%p is not in the purgatory list", l.get()); 1391 } 1392 ALOGE_IF(err<0 && err != NAME_NOT_FOUND, 1393 "error removing layer=%p (%s)", l.get(), strerror(-err)); 1394 } 1395 return err; 1396} 1397 1398uint32_t SurfaceFlinger::setClientStateLocked( 1399 const sp<Client>& client, 1400 const layer_state_t& s) 1401{ 1402 uint32_t flags = 0; 1403 sp<LayerBaseClient> layer(client->getLayerUser(s.surface)); 1404 if (layer != 0) { 1405 const uint32_t what = s.what; 1406 if (what & ePositionChanged) { 1407 if (layer->setPosition(s.x, s.y)) 1408 flags |= eTraversalNeeded; 1409 } 1410 if (what & eLayerChanged) { 1411 ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer); 1412 if (layer->setLayer(s.z)) { 1413 mCurrentState.layersSortedByZ.removeAt(idx); 1414 mCurrentState.layersSortedByZ.add(layer); 1415 // we need traversal (state changed) 1416 // AND transaction (list changed) 1417 flags |= eTransactionNeeded|eTraversalNeeded; 1418 } 1419 } 1420 if (what & eSizeChanged) { 1421 if (layer->setSize(s.w, s.h)) { 1422 flags |= eTraversalNeeded; 1423 } 1424 } 1425 if (what & eAlphaChanged) { 1426 if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f))) 1427 flags |= eTraversalNeeded; 1428 } 1429 if (what & eMatrixChanged) { 1430 if (layer->setMatrix(s.matrix)) 1431 flags |= eTraversalNeeded; 1432 } 1433 if (what & eTransparentRegionChanged) { 1434 if (layer->setTransparentRegionHint(s.transparentRegion)) 1435 flags |= eTraversalNeeded; 1436 } 1437 if (what & eVisibilityChanged) { 1438 if (layer->setFlags(s.flags, s.mask)) 1439 flags |= eTraversalNeeded; 1440 } 1441 } 1442 return flags; 1443} 1444 1445void SurfaceFlinger::screenReleased(int dpy) 1446{ 1447 // this may be called by a signal handler, we can't do too much in here 1448 android_atomic_or(eConsoleReleased, &mConsoleSignals); 1449 signalEvent(); 1450} 1451 1452void SurfaceFlinger::screenAcquired(int dpy) 1453{ 1454 // this may be called by a signal handler, we can't do too much in here 1455 android_atomic_or(eConsoleAcquired, &mConsoleSignals); 1456 signalEvent(); 1457} 1458 1459status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args) 1460{ 1461 const size_t SIZE = 4096; 1462 char buffer[SIZE]; 1463 String8 result; 1464 1465 if (!PermissionCache::checkCallingPermission(sDump)) { 1466 snprintf(buffer, SIZE, "Permission Denial: " 1467 "can't dump SurfaceFlinger from pid=%d, uid=%d\n", 1468 IPCThreadState::self()->getCallingPid(), 1469 IPCThreadState::self()->getCallingUid()); 1470 result.append(buffer); 1471 } else { 1472 // Try to get the main lock, but don't insist if we can't 1473 // (this would indicate SF is stuck, but we want to be able to 1474 // print something in dumpsys). 1475 int retry = 3; 1476 while (mStateLock.tryLock()<0 && --retry>=0) { 1477 usleep(1000000); 1478 } 1479 const bool locked(retry >= 0); 1480 if (!locked) { 1481 snprintf(buffer, SIZE, 1482 "SurfaceFlinger appears to be unresponsive, " 1483 "dumping anyways (no locks held)\n"); 1484 result.append(buffer); 1485 } 1486 1487 bool dumpAll = true; 1488 size_t index = 0; 1489 size_t numArgs = args.size(); 1490 if (numArgs) { 1491 dumpAll = false; 1492 1493 if ((index < numArgs) && 1494 (args[index] == String16("--list"))) { 1495 index++; 1496 listLayersLocked(args, index, result, buffer, SIZE); 1497 } 1498 1499 if ((index < numArgs) && 1500 (args[index] == String16("--latency"))) { 1501 index++; 1502 dumpStatsLocked(args, index, result, buffer, SIZE); 1503 } 1504 1505 if ((index < numArgs) && 1506 (args[index] == String16("--latency-clear"))) { 1507 index++; 1508 clearStatsLocked(args, index, result, buffer, SIZE); 1509 } 1510 } 1511 1512 if (dumpAll) { 1513 dumpAllLocked(result, buffer, SIZE); 1514 } 1515 1516 if (locked) { 1517 mStateLock.unlock(); 1518 } 1519 } 1520 write(fd, result.string(), result.size()); 1521 return NO_ERROR; 1522} 1523 1524void SurfaceFlinger::listLayersLocked(const Vector<String16>& args, size_t& index, 1525 String8& result, char* buffer, size_t SIZE) const 1526{ 1527 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1528 const size_t count = currentLayers.size(); 1529 for (size_t i=0 ; i<count ; i++) { 1530 const sp<LayerBase>& layer(currentLayers[i]); 1531 snprintf(buffer, SIZE, "%s\n", layer->getName().string()); 1532 result.append(buffer); 1533 } 1534} 1535 1536void SurfaceFlinger::dumpStatsLocked(const Vector<String16>& args, size_t& index, 1537 String8& result, char* buffer, size_t SIZE) const 1538{ 1539 String8 name; 1540 if (index < args.size()) { 1541 name = String8(args[index]); 1542 index++; 1543 } 1544 1545 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1546 const size_t count = currentLayers.size(); 1547 for (size_t i=0 ; i<count ; i++) { 1548 const sp<LayerBase>& layer(currentLayers[i]); 1549 if (name.isEmpty()) { 1550 snprintf(buffer, SIZE, "%s\n", layer->getName().string()); 1551 result.append(buffer); 1552 } 1553 if (name.isEmpty() || (name == layer->getName())) { 1554 layer->dumpStats(result, buffer, SIZE); 1555 } 1556 } 1557} 1558 1559void SurfaceFlinger::clearStatsLocked(const Vector<String16>& args, size_t& index, 1560 String8& result, char* buffer, size_t SIZE) const 1561{ 1562 String8 name; 1563 if (index < args.size()) { 1564 name = String8(args[index]); 1565 index++; 1566 } 1567 1568 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1569 const size_t count = currentLayers.size(); 1570 for (size_t i=0 ; i<count ; i++) { 1571 const sp<LayerBase>& layer(currentLayers[i]); 1572 if (name.isEmpty() || (name == layer->getName())) { 1573 layer->clearStats(); 1574 } 1575 } 1576} 1577 1578void SurfaceFlinger::dumpAllLocked( 1579 String8& result, char* buffer, size_t SIZE) const 1580{ 1581 // figure out if we're stuck somewhere 1582 const nsecs_t now = systemTime(); 1583 const nsecs_t inSwapBuffers(mDebugInSwapBuffers); 1584 const nsecs_t inTransaction(mDebugInTransaction); 1585 nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0; 1586 nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0; 1587 1588 /* 1589 * Dump the visible layer list 1590 */ 1591 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1592 const size_t count = currentLayers.size(); 1593 snprintf(buffer, SIZE, "Visible layers (count = %d)\n", count); 1594 result.append(buffer); 1595 for (size_t i=0 ; i<count ; i++) { 1596 const sp<LayerBase>& layer(currentLayers[i]); 1597 layer->dump(result, buffer, SIZE); 1598 } 1599 1600 /* 1601 * Dump the layers in the purgatory 1602 */ 1603 1604 const size_t purgatorySize = mLayerPurgatory.size(); 1605 snprintf(buffer, SIZE, "Purgatory state (%d entries)\n", purgatorySize); 1606 result.append(buffer); 1607 for (size_t i=0 ; i<purgatorySize ; i++) { 1608 const sp<LayerBase>& layer(mLayerPurgatory.itemAt(i)); 1609 layer->shortDump(result, buffer, SIZE); 1610 } 1611 1612 /* 1613 * Dump SurfaceFlinger global state 1614 */ 1615 1616 snprintf(buffer, SIZE, "SurfaceFlinger global state:\n"); 1617 result.append(buffer); 1618 1619 const GLExtensions& extensions(GLExtensions::getInstance()); 1620 snprintf(buffer, SIZE, "GLES: %s, %s, %s\n", 1621 extensions.getVendor(), 1622 extensions.getRenderer(), 1623 extensions.getVersion()); 1624 result.append(buffer); 1625 1626 snprintf(buffer, SIZE, "EGL : %s\n", 1627 eglQueryString(graphicPlane(0).getEGLDisplay(), 1628 EGL_VERSION_HW_ANDROID)); 1629 result.append(buffer); 1630 1631 snprintf(buffer, SIZE, "EXTS: %s\n", extensions.getExtension()); 1632 result.append(buffer); 1633 1634 mWormholeRegion.dump(result, "WormholeRegion"); 1635 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1636 snprintf(buffer, SIZE, 1637 " orientation=%d, canDraw=%d\n", 1638 mCurrentState.orientation, hw.canDraw()); 1639 result.append(buffer); 1640 snprintf(buffer, SIZE, 1641 " last eglSwapBuffers() time: %f us\n" 1642 " last transaction time : %f us\n" 1643 " refresh-rate : %f fps\n" 1644 " x-dpi : %f\n" 1645 " y-dpi : %f\n", 1646 mLastSwapBufferTime/1000.0, 1647 mLastTransactionTime/1000.0, 1648 hw.getRefreshRate(), 1649 hw.getDpiX(), 1650 hw.getDpiY()); 1651 result.append(buffer); 1652 1653 snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n", 1654 inSwapBuffersDuration/1000.0); 1655 result.append(buffer); 1656 1657 snprintf(buffer, SIZE, " transaction time: %f us\n", 1658 inTransactionDuration/1000.0); 1659 result.append(buffer); 1660 1661 /* 1662 * VSYNC state 1663 */ 1664 mEventThread->dump(result, buffer, SIZE); 1665 1666 /* 1667 * Dump HWComposer state 1668 */ 1669 HWComposer& hwc(hw.getHwComposer()); 1670 snprintf(buffer, SIZE, "h/w composer state:\n"); 1671 result.append(buffer); 1672 snprintf(buffer, SIZE, " h/w composer %s and %s\n", 1673 hwc.initCheck()==NO_ERROR ? "present" : "not present", 1674 (mDebugDisableHWC || mDebugRegion) ? "disabled" : "enabled"); 1675 result.append(buffer); 1676 hwc.dump(result, buffer, SIZE, mVisibleLayersSortedByZ); 1677 1678 /* 1679 * Dump gralloc state 1680 */ 1681 const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get()); 1682 alloc.dump(result); 1683 hw.dump(result); 1684} 1685 1686status_t SurfaceFlinger::onTransact( 1687 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1688{ 1689 switch (code) { 1690 case CREATE_CONNECTION: 1691 case SET_TRANSACTION_STATE: 1692 case SET_ORIENTATION: 1693 case BOOT_FINISHED: 1694 case TURN_ELECTRON_BEAM_OFF: 1695 case TURN_ELECTRON_BEAM_ON: 1696 { 1697 // codes that require permission check 1698 IPCThreadState* ipc = IPCThreadState::self(); 1699 const int pid = ipc->getCallingPid(); 1700 const int uid = ipc->getCallingUid(); 1701 if ((uid != AID_GRAPHICS) && 1702 !PermissionCache::checkPermission(sAccessSurfaceFlinger, pid, uid)) { 1703 ALOGE("Permission Denial: " 1704 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1705 return PERMISSION_DENIED; 1706 } 1707 break; 1708 } 1709 case CAPTURE_SCREEN: 1710 { 1711 // codes that require permission check 1712 IPCThreadState* ipc = IPCThreadState::self(); 1713 const int pid = ipc->getCallingPid(); 1714 const int uid = ipc->getCallingUid(); 1715 if ((uid != AID_GRAPHICS) && 1716 !PermissionCache::checkPermission(sReadFramebuffer, pid, uid)) { 1717 ALOGE("Permission Denial: " 1718 "can't read framebuffer pid=%d, uid=%d", pid, uid); 1719 return PERMISSION_DENIED; 1720 } 1721 break; 1722 } 1723 } 1724 1725 status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags); 1726 if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) { 1727 CHECK_INTERFACE(ISurfaceComposer, data, reply); 1728 if (CC_UNLIKELY(!PermissionCache::checkCallingPermission(sHardwareTest))) { 1729 IPCThreadState* ipc = IPCThreadState::self(); 1730 const int pid = ipc->getCallingPid(); 1731 const int uid = ipc->getCallingUid(); 1732 ALOGE("Permission Denial: " 1733 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1734 return PERMISSION_DENIED; 1735 } 1736 int n; 1737 switch (code) { 1738 case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE 1739 case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE 1740 return NO_ERROR; 1741 case 1002: // SHOW_UPDATES 1742 n = data.readInt32(); 1743 mDebugRegion = n ? n : (mDebugRegion ? 0 : 1); 1744 invalidateHwcGeometry(); 1745 repaintEverything(); 1746 return NO_ERROR; 1747 case 1003: // SHOW_BACKGROUND 1748 n = data.readInt32(); 1749 mDebugBackground = n ? 1 : 0; 1750 return NO_ERROR; 1751 case 1004:{ // repaint everything 1752 repaintEverything(); 1753 return NO_ERROR; 1754 } 1755 case 1005:{ // force transaction 1756 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1757 return NO_ERROR; 1758 } 1759 case 1008: // toggle use of hw composer 1760 n = data.readInt32(); 1761 mDebugDisableHWC = n ? 1 : 0; 1762 invalidateHwcGeometry(); 1763 repaintEverything(); 1764 return NO_ERROR; 1765 case 1009: // toggle use of transform hint 1766 n = data.readInt32(); 1767 mDebugDisableTransformHint = n ? 1 : 0; 1768 invalidateHwcGeometry(); 1769 repaintEverything(); 1770 return NO_ERROR; 1771 case 1010: // interrogate. 1772 reply->writeInt32(0); 1773 reply->writeInt32(0); 1774 reply->writeInt32(mDebugRegion); 1775 reply->writeInt32(mDebugBackground); 1776 return NO_ERROR; 1777 case 1013: { 1778 Mutex::Autolock _l(mStateLock); 1779 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1780 reply->writeInt32(hw.getPageFlipCount()); 1781 } 1782 return NO_ERROR; 1783 } 1784 } 1785 return err; 1786} 1787 1788void SurfaceFlinger::repaintEverything() { 1789 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1790 const Rect bounds(hw.getBounds()); 1791 setInvalidateRegion(Region(bounds)); 1792 signalEvent(); 1793} 1794 1795void SurfaceFlinger::setInvalidateRegion(const Region& reg) { 1796 Mutex::Autolock _l(mInvalidateLock); 1797 mInvalidateRegion = reg; 1798} 1799 1800Region SurfaceFlinger::getAndClearInvalidateRegion() { 1801 Mutex::Autolock _l(mInvalidateLock); 1802 Region reg(mInvalidateRegion); 1803 mInvalidateRegion.clear(); 1804 return reg; 1805} 1806 1807// --------------------------------------------------------------------------- 1808 1809status_t SurfaceFlinger::renderScreenToTexture(DisplayID dpy, 1810 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1811{ 1812 Mutex::Autolock _l(mStateLock); 1813 return renderScreenToTextureLocked(dpy, textureName, uOut, vOut); 1814} 1815 1816status_t SurfaceFlinger::renderScreenToTextureLocked(DisplayID dpy, 1817 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1818{ 1819 if (!GLExtensions::getInstance().haveFramebufferObject()) 1820 return INVALID_OPERATION; 1821 1822 // get screen geometry 1823 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 1824 const uint32_t hw_w = hw.getWidth(); 1825 const uint32_t hw_h = hw.getHeight(); 1826 GLfloat u = 1; 1827 GLfloat v = 1; 1828 1829 // make sure to clear all GL error flags 1830 while ( glGetError() != GL_NO_ERROR ) ; 1831 1832 // create a FBO 1833 GLuint name, tname; 1834 glGenTextures(1, &tname); 1835 glBindTexture(GL_TEXTURE_2D, tname); 1836 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1837 hw_w, hw_h, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1838 if (glGetError() != GL_NO_ERROR) { 1839 while ( glGetError() != GL_NO_ERROR ) ; 1840 GLint tw = (2 << (31 - clz(hw_w))); 1841 GLint th = (2 << (31 - clz(hw_h))); 1842 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1843 tw, th, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1844 u = GLfloat(hw_w) / tw; 1845 v = GLfloat(hw_h) / th; 1846 } 1847 glGenFramebuffersOES(1, &name); 1848 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 1849 glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, 1850 GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0); 1851 1852 // redraw the screen entirely... 1853 glDisable(GL_TEXTURE_EXTERNAL_OES); 1854 glDisable(GL_TEXTURE_2D); 1855 glDisable(GL_SCISSOR_TEST); 1856 glClearColor(0,0,0,1); 1857 glClear(GL_COLOR_BUFFER_BIT); 1858 glEnable(GL_SCISSOR_TEST); 1859 glMatrixMode(GL_MODELVIEW); 1860 glLoadIdentity(); 1861 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1862 const size_t count = layers.size(); 1863 for (size_t i=0 ; i<count ; ++i) { 1864 const sp<LayerBase>& layer(layers[i]); 1865 layer->drawForSreenShot(); 1866 } 1867 1868 hw.compositionComplete(); 1869 1870 // back to main framebuffer 1871 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1872 glDisable(GL_SCISSOR_TEST); 1873 glDeleteFramebuffersOES(1, &name); 1874 1875 *textureName = tname; 1876 *uOut = u; 1877 *vOut = v; 1878 return NO_ERROR; 1879} 1880 1881// --------------------------------------------------------------------------- 1882 1883status_t SurfaceFlinger::electronBeamOffAnimationImplLocked() 1884{ 1885 // get screen geometry 1886 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1887 const uint32_t hw_w = hw.getWidth(); 1888 const uint32_t hw_h = hw.getHeight(); 1889 const Region screenBounds(hw.getBounds()); 1890 1891 GLfloat u, v; 1892 GLuint tname; 1893 status_t result = renderScreenToTextureLocked(0, &tname, &u, &v); 1894 if (result != NO_ERROR) { 1895 return result; 1896 } 1897 1898 GLfloat vtx[8]; 1899 const GLfloat texCoords[4][2] = { {0,0}, {0,v}, {u,v}, {u,0} }; 1900 glBindTexture(GL_TEXTURE_2D, tname); 1901 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1902 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1903 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1904 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1905 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1906 glVertexPointer(2, GL_FLOAT, 0, vtx); 1907 1908 /* 1909 * Texture coordinate mapping 1910 * 1911 * u 1912 * 1 +----------+---+ 1913 * | | | | image is inverted 1914 * | V | | w.r.t. the texture 1915 * 1-v +----------+ | coordinates 1916 * | | 1917 * | | 1918 * | | 1919 * 0 +--------------+ 1920 * 0 1 1921 * 1922 */ 1923 1924 class s_curve_interpolator { 1925 const float nbFrames, s, v; 1926 public: 1927 s_curve_interpolator(int nbFrames, float s) 1928 : nbFrames(1.0f / (nbFrames-1)), s(s), 1929 v(1.0f + expf(-s + 0.5f*s)) { 1930 } 1931 float operator()(int f) { 1932 const float x = f * nbFrames; 1933 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1934 } 1935 }; 1936 1937 class v_stretch { 1938 const GLfloat hw_w, hw_h; 1939 public: 1940 v_stretch(uint32_t hw_w, uint32_t hw_h) 1941 : hw_w(hw_w), hw_h(hw_h) { 1942 } 1943 void operator()(GLfloat* vtx, float v) { 1944 const GLfloat w = hw_w + (hw_w * v); 1945 const GLfloat h = hw_h - (hw_h * v); 1946 const GLfloat x = (hw_w - w) * 0.5f; 1947 const GLfloat y = (hw_h - h) * 0.5f; 1948 vtx[0] = x; vtx[1] = y; 1949 vtx[2] = x; vtx[3] = y + h; 1950 vtx[4] = x + w; vtx[5] = y + h; 1951 vtx[6] = x + w; vtx[7] = y; 1952 } 1953 }; 1954 1955 class h_stretch { 1956 const GLfloat hw_w, hw_h; 1957 public: 1958 h_stretch(uint32_t hw_w, uint32_t hw_h) 1959 : hw_w(hw_w), hw_h(hw_h) { 1960 } 1961 void operator()(GLfloat* vtx, float v) { 1962 const GLfloat w = hw_w - (hw_w * v); 1963 const GLfloat h = 1.0f; 1964 const GLfloat x = (hw_w - w) * 0.5f; 1965 const GLfloat y = (hw_h - h) * 0.5f; 1966 vtx[0] = x; vtx[1] = y; 1967 vtx[2] = x; vtx[3] = y + h; 1968 vtx[4] = x + w; vtx[5] = y + h; 1969 vtx[6] = x + w; vtx[7] = y; 1970 } 1971 }; 1972 1973 // the full animation is 24 frames 1974 char value[PROPERTY_VALUE_MAX]; 1975 property_get("debug.sf.electron_frames", value, "24"); 1976 int nbFrames = (atoi(value) + 1) >> 1; 1977 if (nbFrames <= 0) // just in case 1978 nbFrames = 24; 1979 1980 s_curve_interpolator itr(nbFrames, 7.5f); 1981 s_curve_interpolator itg(nbFrames, 8.0f); 1982 s_curve_interpolator itb(nbFrames, 8.5f); 1983 1984 v_stretch vverts(hw_w, hw_h); 1985 1986 glMatrixMode(GL_TEXTURE); 1987 glLoadIdentity(); 1988 glMatrixMode(GL_MODELVIEW); 1989 glLoadIdentity(); 1990 1991 glEnable(GL_BLEND); 1992 glBlendFunc(GL_ONE, GL_ONE); 1993 for (int i=0 ; i<nbFrames ; i++) { 1994 float x, y, w, h; 1995 const float vr = itr(i); 1996 const float vg = itg(i); 1997 const float vb = itb(i); 1998 1999 // clear screen 2000 glColorMask(1,1,1,1); 2001 glClear(GL_COLOR_BUFFER_BIT); 2002 glEnable(GL_TEXTURE_2D); 2003 2004 // draw the red plane 2005 vverts(vtx, vr); 2006 glColorMask(1,0,0,1); 2007 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2008 2009 // draw the green plane 2010 vverts(vtx, vg); 2011 glColorMask(0,1,0,1); 2012 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2013 2014 // draw the blue plane 2015 vverts(vtx, vb); 2016 glColorMask(0,0,1,1); 2017 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2018 2019 // draw the white highlight (we use the last vertices) 2020 glDisable(GL_TEXTURE_2D); 2021 glColorMask(1,1,1,1); 2022 glColor4f(vg, vg, vg, 1); 2023 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2024 hw.flip(screenBounds); 2025 } 2026 2027 h_stretch hverts(hw_w, hw_h); 2028 glDisable(GL_BLEND); 2029 glDisable(GL_TEXTURE_2D); 2030 glColorMask(1,1,1,1); 2031 for (int i=0 ; i<nbFrames ; i++) { 2032 const float v = itg(i); 2033 hverts(vtx, v); 2034 glClear(GL_COLOR_BUFFER_BIT); 2035 glColor4f(1-v, 1-v, 1-v, 1); 2036 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2037 hw.flip(screenBounds); 2038 } 2039 2040 glColorMask(1,1,1,1); 2041 glEnable(GL_SCISSOR_TEST); 2042 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 2043 glDeleteTextures(1, &tname); 2044 glDisable(GL_TEXTURE_2D); 2045 glDisable(GL_BLEND); 2046 return NO_ERROR; 2047} 2048 2049status_t SurfaceFlinger::electronBeamOnAnimationImplLocked() 2050{ 2051 status_t result = PERMISSION_DENIED; 2052 2053 if (!GLExtensions::getInstance().haveFramebufferObject()) 2054 return INVALID_OPERATION; 2055 2056 2057 // get screen geometry 2058 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 2059 const uint32_t hw_w = hw.getWidth(); 2060 const uint32_t hw_h = hw.getHeight(); 2061 const Region screenBounds(hw.bounds()); 2062 2063 GLfloat u, v; 2064 GLuint tname; 2065 result = renderScreenToTextureLocked(0, &tname, &u, &v); 2066 if (result != NO_ERROR) { 2067 return result; 2068 } 2069 2070 GLfloat vtx[8]; 2071 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 2072 glBindTexture(GL_TEXTURE_2D, tname); 2073 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 2074 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 2075 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 2076 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 2077 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 2078 glVertexPointer(2, GL_FLOAT, 0, vtx); 2079 2080 class s_curve_interpolator { 2081 const float nbFrames, s, v; 2082 public: 2083 s_curve_interpolator(int nbFrames, float s) 2084 : nbFrames(1.0f / (nbFrames-1)), s(s), 2085 v(1.0f + expf(-s + 0.5f*s)) { 2086 } 2087 float operator()(int f) { 2088 const float x = f * nbFrames; 2089 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 2090 } 2091 }; 2092 2093 class v_stretch { 2094 const GLfloat hw_w, hw_h; 2095 public: 2096 v_stretch(uint32_t hw_w, uint32_t hw_h) 2097 : hw_w(hw_w), hw_h(hw_h) { 2098 } 2099 void operator()(GLfloat* vtx, float v) { 2100 const GLfloat w = hw_w + (hw_w * v); 2101 const GLfloat h = hw_h - (hw_h * v); 2102 const GLfloat x = (hw_w - w) * 0.5f; 2103 const GLfloat y = (hw_h - h) * 0.5f; 2104 vtx[0] = x; vtx[1] = y; 2105 vtx[2] = x; vtx[3] = y + h; 2106 vtx[4] = x + w; vtx[5] = y + h; 2107 vtx[6] = x + w; vtx[7] = y; 2108 } 2109 }; 2110 2111 class h_stretch { 2112 const GLfloat hw_w, hw_h; 2113 public: 2114 h_stretch(uint32_t hw_w, uint32_t hw_h) 2115 : hw_w(hw_w), hw_h(hw_h) { 2116 } 2117 void operator()(GLfloat* vtx, float v) { 2118 const GLfloat w = hw_w - (hw_w * v); 2119 const GLfloat h = 1.0f; 2120 const GLfloat x = (hw_w - w) * 0.5f; 2121 const GLfloat y = (hw_h - h) * 0.5f; 2122 vtx[0] = x; vtx[1] = y; 2123 vtx[2] = x; vtx[3] = y + h; 2124 vtx[4] = x + w; vtx[5] = y + h; 2125 vtx[6] = x + w; vtx[7] = y; 2126 } 2127 }; 2128 2129 // the full animation is 12 frames 2130 int nbFrames = 8; 2131 s_curve_interpolator itr(nbFrames, 7.5f); 2132 s_curve_interpolator itg(nbFrames, 8.0f); 2133 s_curve_interpolator itb(nbFrames, 8.5f); 2134 2135 h_stretch hverts(hw_w, hw_h); 2136 glDisable(GL_BLEND); 2137 glDisable(GL_TEXTURE_2D); 2138 glColorMask(1,1,1,1); 2139 for (int i=nbFrames-1 ; i>=0 ; i--) { 2140 const float v = itg(i); 2141 hverts(vtx, v); 2142 glClear(GL_COLOR_BUFFER_BIT); 2143 glColor4f(1-v, 1-v, 1-v, 1); 2144 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2145 hw.flip(screenBounds); 2146 } 2147 2148 nbFrames = 4; 2149 v_stretch vverts(hw_w, hw_h); 2150 glEnable(GL_BLEND); 2151 glBlendFunc(GL_ONE, GL_ONE); 2152 for (int i=nbFrames-1 ; i>=0 ; i--) { 2153 float x, y, w, h; 2154 const float vr = itr(i); 2155 const float vg = itg(i); 2156 const float vb = itb(i); 2157 2158 // clear screen 2159 glColorMask(1,1,1,1); 2160 glClear(GL_COLOR_BUFFER_BIT); 2161 glEnable(GL_TEXTURE_2D); 2162 2163 // draw the red plane 2164 vverts(vtx, vr); 2165 glColorMask(1,0,0,1); 2166 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2167 2168 // draw the green plane 2169 vverts(vtx, vg); 2170 glColorMask(0,1,0,1); 2171 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2172 2173 // draw the blue plane 2174 vverts(vtx, vb); 2175 glColorMask(0,0,1,1); 2176 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2177 2178 hw.flip(screenBounds); 2179 } 2180 2181 glColorMask(1,1,1,1); 2182 glEnable(GL_SCISSOR_TEST); 2183 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 2184 glDeleteTextures(1, &tname); 2185 glDisable(GL_TEXTURE_2D); 2186 glDisable(GL_BLEND); 2187 2188 return NO_ERROR; 2189} 2190 2191// --------------------------------------------------------------------------- 2192 2193status_t SurfaceFlinger::turnElectronBeamOffImplLocked(int32_t mode) 2194{ 2195 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2196 if (!hw.canDraw()) { 2197 // we're already off 2198 return NO_ERROR; 2199 } 2200 2201 // turn off hwc while we're doing the animation 2202 hw.getHwComposer().disable(); 2203 // and make sure to turn it back on (if needed) next time we compose 2204 invalidateHwcGeometry(); 2205 2206 if (mode & ISurfaceComposer::eElectronBeamAnimationOff) { 2207 electronBeamOffAnimationImplLocked(); 2208 } 2209 2210 // always clear the whole screen at the end of the animation 2211 glClearColor(0,0,0,1); 2212 glDisable(GL_SCISSOR_TEST); 2213 glClear(GL_COLOR_BUFFER_BIT); 2214 glEnable(GL_SCISSOR_TEST); 2215 hw.flip( Region(hw.bounds()) ); 2216 2217 return NO_ERROR; 2218} 2219 2220status_t SurfaceFlinger::turnElectronBeamOff(int32_t mode) 2221{ 2222 class MessageTurnElectronBeamOff : public MessageBase { 2223 SurfaceFlinger* flinger; 2224 int32_t mode; 2225 status_t result; 2226 public: 2227 MessageTurnElectronBeamOff(SurfaceFlinger* flinger, int32_t mode) 2228 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2229 } 2230 status_t getResult() const { 2231 return result; 2232 } 2233 virtual bool handler() { 2234 Mutex::Autolock _l(flinger->mStateLock); 2235 result = flinger->turnElectronBeamOffImplLocked(mode); 2236 return true; 2237 } 2238 }; 2239 2240 sp<MessageBase> msg = new MessageTurnElectronBeamOff(this, mode); 2241 status_t res = postMessageSync(msg); 2242 if (res == NO_ERROR) { 2243 res = static_cast<MessageTurnElectronBeamOff*>( msg.get() )->getResult(); 2244 2245 // work-around: when the power-manager calls us we activate the 2246 // animation. eventually, the "on" animation will be called 2247 // by the power-manager itself 2248 mElectronBeamAnimationMode = mode; 2249 } 2250 return res; 2251} 2252 2253// --------------------------------------------------------------------------- 2254 2255status_t SurfaceFlinger::turnElectronBeamOnImplLocked(int32_t mode) 2256{ 2257 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2258 if (hw.canDraw()) { 2259 // we're already on 2260 return NO_ERROR; 2261 } 2262 if (mode & ISurfaceComposer::eElectronBeamAnimationOn) { 2263 electronBeamOnAnimationImplLocked(); 2264 } 2265 2266 // make sure to redraw the whole screen when the animation is done 2267 mDirtyRegion.set(hw.bounds()); 2268 signalEvent(); 2269 2270 return NO_ERROR; 2271} 2272 2273status_t SurfaceFlinger::turnElectronBeamOn(int32_t mode) 2274{ 2275 class MessageTurnElectronBeamOn : public MessageBase { 2276 SurfaceFlinger* flinger; 2277 int32_t mode; 2278 status_t result; 2279 public: 2280 MessageTurnElectronBeamOn(SurfaceFlinger* flinger, int32_t mode) 2281 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2282 } 2283 status_t getResult() const { 2284 return result; 2285 } 2286 virtual bool handler() { 2287 Mutex::Autolock _l(flinger->mStateLock); 2288 result = flinger->turnElectronBeamOnImplLocked(mode); 2289 return true; 2290 } 2291 }; 2292 2293 postMessageAsync( new MessageTurnElectronBeamOn(this, mode) ); 2294 return NO_ERROR; 2295} 2296 2297// --------------------------------------------------------------------------- 2298 2299status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy, 2300 sp<IMemoryHeap>* heap, 2301 uint32_t* w, uint32_t* h, PixelFormat* f, 2302 uint32_t sw, uint32_t sh, 2303 uint32_t minLayerZ, uint32_t maxLayerZ) 2304{ 2305 status_t result = PERMISSION_DENIED; 2306 2307 // only one display supported for now 2308 if (CC_UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2309 return BAD_VALUE; 2310 2311 if (!GLExtensions::getInstance().haveFramebufferObject()) 2312 return INVALID_OPERATION; 2313 2314 // get screen geometry 2315 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 2316 const uint32_t hw_w = hw.getWidth(); 2317 const uint32_t hw_h = hw.getHeight(); 2318 2319 if ((sw > hw_w) || (sh > hw_h)) 2320 return BAD_VALUE; 2321 2322 sw = (!sw) ? hw_w : sw; 2323 sh = (!sh) ? hw_h : sh; 2324 const size_t size = sw * sh * 4; 2325 2326 //ALOGD("screenshot: sw=%d, sh=%d, minZ=%d, maxZ=%d", 2327 // sw, sh, minLayerZ, maxLayerZ); 2328 2329 // make sure to clear all GL error flags 2330 while ( glGetError() != GL_NO_ERROR ) ; 2331 2332 // create a FBO 2333 GLuint name, tname; 2334 glGenRenderbuffersOES(1, &tname); 2335 glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname); 2336 glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh); 2337 glGenFramebuffersOES(1, &name); 2338 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 2339 glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, 2340 GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname); 2341 2342 GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES); 2343 2344 if (status == GL_FRAMEBUFFER_COMPLETE_OES) { 2345 2346 // invert everything, b/c glReadPixel() below will invert the FB 2347 glViewport(0, 0, sw, sh); 2348 glScissor(0, 0, sw, sh); 2349 glEnable(GL_SCISSOR_TEST); 2350 glMatrixMode(GL_PROJECTION); 2351 glPushMatrix(); 2352 glLoadIdentity(); 2353 glOrthof(0, hw_w, hw_h, 0, 0, 1); 2354 glMatrixMode(GL_MODELVIEW); 2355 2356 // redraw the screen entirely... 2357 glClearColor(0,0,0,1); 2358 glClear(GL_COLOR_BUFFER_BIT); 2359 2360 const LayerVector& layers(mDrawingState.layersSortedByZ); 2361 const size_t count = layers.size(); 2362 for (size_t i=0 ; i<count ; ++i) { 2363 const sp<LayerBase>& layer(layers[i]); 2364 const uint32_t flags = layer->drawingState().flags; 2365 if (!(flags & ISurfaceComposer::eLayerHidden)) { 2366 const uint32_t z = layer->drawingState().z; 2367 if (z >= minLayerZ && z <= maxLayerZ) { 2368 layer->drawForSreenShot(); 2369 } 2370 } 2371 } 2372 2373 // XXX: this is needed on tegra 2374 glEnable(GL_SCISSOR_TEST); 2375 glScissor(0, 0, sw, sh); 2376 2377 // check for errors and return screen capture 2378 if (glGetError() != GL_NO_ERROR) { 2379 // error while rendering 2380 result = INVALID_OPERATION; 2381 } else { 2382 // allocate shared memory large enough to hold the 2383 // screen capture 2384 sp<MemoryHeapBase> base( 2385 new MemoryHeapBase(size, 0, "screen-capture") ); 2386 void* const ptr = base->getBase(); 2387 if (ptr) { 2388 // capture the screen with glReadPixels() 2389 glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr); 2390 if (glGetError() == GL_NO_ERROR) { 2391 *heap = base; 2392 *w = sw; 2393 *h = sh; 2394 *f = PIXEL_FORMAT_RGBA_8888; 2395 result = NO_ERROR; 2396 } 2397 } else { 2398 result = NO_MEMORY; 2399 } 2400 } 2401 glEnable(GL_SCISSOR_TEST); 2402 glViewport(0, 0, hw_w, hw_h); 2403 glMatrixMode(GL_PROJECTION); 2404 glPopMatrix(); 2405 glMatrixMode(GL_MODELVIEW); 2406 } else { 2407 result = BAD_VALUE; 2408 } 2409 2410 // release FBO resources 2411 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 2412 glDeleteRenderbuffersOES(1, &tname); 2413 glDeleteFramebuffersOES(1, &name); 2414 2415 hw.compositionComplete(); 2416 2417 // ALOGD("screenshot: result = %s", result<0 ? strerror(result) : "OK"); 2418 2419 return result; 2420} 2421 2422 2423status_t SurfaceFlinger::captureScreen(DisplayID dpy, 2424 sp<IMemoryHeap>* heap, 2425 uint32_t* width, uint32_t* height, PixelFormat* format, 2426 uint32_t sw, uint32_t sh, 2427 uint32_t minLayerZ, uint32_t maxLayerZ) 2428{ 2429 // only one display supported for now 2430 if (CC_UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2431 return BAD_VALUE; 2432 2433 if (!GLExtensions::getInstance().haveFramebufferObject()) 2434 return INVALID_OPERATION; 2435 2436 class MessageCaptureScreen : public MessageBase { 2437 SurfaceFlinger* flinger; 2438 DisplayID dpy; 2439 sp<IMemoryHeap>* heap; 2440 uint32_t* w; 2441 uint32_t* h; 2442 PixelFormat* f; 2443 uint32_t sw; 2444 uint32_t sh; 2445 uint32_t minLayerZ; 2446 uint32_t maxLayerZ; 2447 status_t result; 2448 public: 2449 MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy, 2450 sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f, 2451 uint32_t sw, uint32_t sh, 2452 uint32_t minLayerZ, uint32_t maxLayerZ) 2453 : flinger(flinger), dpy(dpy), 2454 heap(heap), w(w), h(h), f(f), sw(sw), sh(sh), 2455 minLayerZ(minLayerZ), maxLayerZ(maxLayerZ), 2456 result(PERMISSION_DENIED) 2457 { 2458 } 2459 status_t getResult() const { 2460 return result; 2461 } 2462 virtual bool handler() { 2463 Mutex::Autolock _l(flinger->mStateLock); 2464 2465 // if we have secure windows, never allow the screen capture 2466 if (flinger->mSecureFrameBuffer) 2467 return true; 2468 2469 result = flinger->captureScreenImplLocked(dpy, 2470 heap, w, h, f, sw, sh, minLayerZ, maxLayerZ); 2471 2472 return true; 2473 } 2474 }; 2475 2476 sp<MessageBase> msg = new MessageCaptureScreen(this, 2477 dpy, heap, width, height, format, sw, sh, minLayerZ, maxLayerZ); 2478 status_t res = postMessageSync(msg); 2479 if (res == NO_ERROR) { 2480 res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult(); 2481 } 2482 return res; 2483} 2484 2485// --------------------------------------------------------------------------- 2486 2487sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const 2488{ 2489 sp<Layer> result; 2490 Mutex::Autolock _l(mStateLock); 2491 result = mLayerMap.valueFor( sur->asBinder() ).promote(); 2492 return result; 2493} 2494 2495// --------------------------------------------------------------------------- 2496 2497Client::Client(const sp<SurfaceFlinger>& flinger) 2498 : mFlinger(flinger), mNameGenerator(1) 2499{ 2500} 2501 2502Client::~Client() 2503{ 2504 const size_t count = mLayers.size(); 2505 for (size_t i=0 ; i<count ; i++) { 2506 sp<LayerBaseClient> layer(mLayers.valueAt(i).promote()); 2507 if (layer != 0) { 2508 mFlinger->removeLayer(layer); 2509 } 2510 } 2511} 2512 2513status_t Client::initCheck() const { 2514 return NO_ERROR; 2515} 2516 2517size_t Client::attachLayer(const sp<LayerBaseClient>& layer) 2518{ 2519 Mutex::Autolock _l(mLock); 2520 size_t name = mNameGenerator++; 2521 mLayers.add(name, layer); 2522 return name; 2523} 2524 2525void Client::detachLayer(const LayerBaseClient* layer) 2526{ 2527 Mutex::Autolock _l(mLock); 2528 // we do a linear search here, because this doesn't happen often 2529 const size_t count = mLayers.size(); 2530 for (size_t i=0 ; i<count ; i++) { 2531 if (mLayers.valueAt(i) == layer) { 2532 mLayers.removeItemsAt(i, 1); 2533 break; 2534 } 2535 } 2536} 2537sp<LayerBaseClient> Client::getLayerUser(int32_t i) const 2538{ 2539 Mutex::Autolock _l(mLock); 2540 sp<LayerBaseClient> lbc; 2541 wp<LayerBaseClient> layer(mLayers.valueFor(i)); 2542 if (layer != 0) { 2543 lbc = layer.promote(); 2544 ALOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i)); 2545 } 2546 return lbc; 2547} 2548 2549 2550status_t Client::onTransact( 2551 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 2552{ 2553 // these must be checked 2554 IPCThreadState* ipc = IPCThreadState::self(); 2555 const int pid = ipc->getCallingPid(); 2556 const int uid = ipc->getCallingUid(); 2557 const int self_pid = getpid(); 2558 if (CC_UNLIKELY(pid != self_pid && uid != AID_GRAPHICS && uid != 0)) { 2559 // we're called from a different process, do the real check 2560 if (!PermissionCache::checkCallingPermission(sAccessSurfaceFlinger)) 2561 { 2562 ALOGE("Permission Denial: " 2563 "can't openGlobalTransaction pid=%d, uid=%d", pid, uid); 2564 return PERMISSION_DENIED; 2565 } 2566 } 2567 return BnSurfaceComposerClient::onTransact(code, data, reply, flags); 2568} 2569 2570 2571sp<ISurface> Client::createSurface( 2572 ISurfaceComposerClient::surface_data_t* params, 2573 const String8& name, 2574 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2575 uint32_t flags) 2576{ 2577 /* 2578 * createSurface must be called from the GL thread so that it can 2579 * have access to the GL context. 2580 */ 2581 2582 class MessageCreateSurface : public MessageBase { 2583 sp<ISurface> result; 2584 SurfaceFlinger* flinger; 2585 ISurfaceComposerClient::surface_data_t* params; 2586 Client* client; 2587 const String8& name; 2588 DisplayID display; 2589 uint32_t w, h; 2590 PixelFormat format; 2591 uint32_t flags; 2592 public: 2593 MessageCreateSurface(SurfaceFlinger* flinger, 2594 ISurfaceComposerClient::surface_data_t* params, 2595 const String8& name, Client* client, 2596 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2597 uint32_t flags) 2598 : flinger(flinger), params(params), client(client), name(name), 2599 display(display), w(w), h(h), format(format), flags(flags) 2600 { 2601 } 2602 sp<ISurface> getResult() const { return result; } 2603 virtual bool handler() { 2604 result = flinger->createSurface(params, name, client, 2605 display, w, h, format, flags); 2606 return true; 2607 } 2608 }; 2609 2610 sp<MessageBase> msg = new MessageCreateSurface(mFlinger.get(), 2611 params, name, this, display, w, h, format, flags); 2612 mFlinger->postMessageSync(msg); 2613 return static_cast<MessageCreateSurface*>( msg.get() )->getResult(); 2614} 2615status_t Client::destroySurface(SurfaceID sid) { 2616 return mFlinger->removeSurface(this, sid); 2617} 2618 2619// --------------------------------------------------------------------------- 2620 2621GraphicBufferAlloc::GraphicBufferAlloc() {} 2622 2623GraphicBufferAlloc::~GraphicBufferAlloc() {} 2624 2625sp<GraphicBuffer> GraphicBufferAlloc::createGraphicBuffer(uint32_t w, uint32_t h, 2626 PixelFormat format, uint32_t usage, status_t* error) { 2627 sp<GraphicBuffer> graphicBuffer(new GraphicBuffer(w, h, format, usage)); 2628 status_t err = graphicBuffer->initCheck(); 2629 *error = err; 2630 if (err != 0 || graphicBuffer->handle == 0) { 2631 if (err == NO_MEMORY) { 2632 GraphicBuffer::dumpAllocationsToSystemLog(); 2633 } 2634 ALOGE("GraphicBufferAlloc::createGraphicBuffer(w=%d, h=%d) " 2635 "failed (%s), handle=%p", 2636 w, h, strerror(-err), graphicBuffer->handle); 2637 return 0; 2638 } 2639 return graphicBuffer; 2640} 2641 2642// --------------------------------------------------------------------------- 2643 2644GraphicPlane::GraphicPlane() 2645 : mHw(0) 2646{ 2647} 2648 2649GraphicPlane::~GraphicPlane() { 2650 delete mHw; 2651} 2652 2653bool GraphicPlane::initialized() const { 2654 return mHw ? true : false; 2655} 2656 2657int GraphicPlane::getWidth() const { 2658 return mWidth; 2659} 2660 2661int GraphicPlane::getHeight() const { 2662 return mHeight; 2663} 2664 2665void GraphicPlane::setDisplayHardware(DisplayHardware *hw) 2666{ 2667 mHw = hw; 2668 2669 // initialize the display orientation transform. 2670 // it's a constant that should come from the display driver. 2671 int displayOrientation = ISurfaceComposer::eOrientationDefault; 2672 char property[PROPERTY_VALUE_MAX]; 2673 if (property_get("ro.sf.hwrotation", property, NULL) > 0) { 2674 //displayOrientation 2675 switch (atoi(property)) { 2676 case 90: 2677 displayOrientation = ISurfaceComposer::eOrientation90; 2678 break; 2679 case 270: 2680 displayOrientation = ISurfaceComposer::eOrientation270; 2681 break; 2682 } 2683 } 2684 2685 const float w = hw->getWidth(); 2686 const float h = hw->getHeight(); 2687 GraphicPlane::orientationToTransfrom(displayOrientation, w, h, 2688 &mDisplayTransform); 2689 if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) { 2690 mDisplayWidth = h; 2691 mDisplayHeight = w; 2692 } else { 2693 mDisplayWidth = w; 2694 mDisplayHeight = h; 2695 } 2696 2697 setOrientation(ISurfaceComposer::eOrientationDefault); 2698} 2699 2700status_t GraphicPlane::orientationToTransfrom( 2701 int orientation, int w, int h, Transform* tr) 2702{ 2703 uint32_t flags = 0; 2704 switch (orientation) { 2705 case ISurfaceComposer::eOrientationDefault: 2706 flags = Transform::ROT_0; 2707 break; 2708 case ISurfaceComposer::eOrientation90: 2709 flags = Transform::ROT_90; 2710 break; 2711 case ISurfaceComposer::eOrientation180: 2712 flags = Transform::ROT_180; 2713 break; 2714 case ISurfaceComposer::eOrientation270: 2715 flags = Transform::ROT_270; 2716 break; 2717 default: 2718 return BAD_VALUE; 2719 } 2720 tr->set(flags, w, h); 2721 return NO_ERROR; 2722} 2723 2724status_t GraphicPlane::setOrientation(int orientation) 2725{ 2726 // If the rotation can be handled in hardware, this is where 2727 // the magic should happen. 2728 2729 const DisplayHardware& hw(displayHardware()); 2730 const float w = mDisplayWidth; 2731 const float h = mDisplayHeight; 2732 mWidth = int(w); 2733 mHeight = int(h); 2734 2735 Transform orientationTransform; 2736 GraphicPlane::orientationToTransfrom(orientation, w, h, 2737 &orientationTransform); 2738 if (orientation & ISurfaceComposer::eOrientationSwapMask) { 2739 mWidth = int(h); 2740 mHeight = int(w); 2741 } 2742 2743 mOrientation = orientation; 2744 mGlobalTransform = mDisplayTransform * orientationTransform; 2745 return NO_ERROR; 2746} 2747 2748const DisplayHardware& GraphicPlane::displayHardware() const { 2749 return *mHw; 2750} 2751 2752DisplayHardware& GraphicPlane::editDisplayHardware() { 2753 return *mHw; 2754} 2755 2756const Transform& GraphicPlane::transform() const { 2757 return mGlobalTransform; 2758} 2759 2760EGLDisplay GraphicPlane::getEGLDisplay() const { 2761 return mHw->getEGLDisplay(); 2762} 2763 2764// --------------------------------------------------------------------------- 2765 2766}; // namespace android 2767