SurfaceFlinger.cpp revision dea20b1f343012d58ca9eb381684b26a168dc127
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include <stdlib.h> 18#include <stdio.h> 19#include <stdint.h> 20#include <unistd.h> 21#include <fcntl.h> 22#include <errno.h> 23#include <math.h> 24#include <limits.h> 25#include <sys/types.h> 26#include <sys/stat.h> 27#include <sys/ioctl.h> 28 29#include <cutils/log.h> 30#include <cutils/properties.h> 31 32#include <binder/IPCThreadState.h> 33#include <binder/IServiceManager.h> 34#include <binder/MemoryHeapBase.h> 35 36#include <utils/String8.h> 37#include <utils/String16.h> 38#include <utils/StopWatch.h> 39 40#include <ui/GraphicBufferAllocator.h> 41#include <ui/GraphicLog.h> 42#include <ui/PixelFormat.h> 43 44#include <pixelflinger/pixelflinger.h> 45#include <GLES/gl.h> 46 47#include "clz.h" 48#include "GLExtensions.h" 49#include "Layer.h" 50#include "LayerDim.h" 51#include "SurfaceFlinger.h" 52 53#include "DisplayHardware/DisplayHardware.h" 54#include "DisplayHardware/HWComposer.h" 55 56/* ideally AID_GRAPHICS would be in a semi-public header 57 * or there would be a way to map a user/group name to its id 58 */ 59#ifndef AID_GRAPHICS 60#define AID_GRAPHICS 1003 61#endif 62 63#define DISPLAY_COUNT 1 64 65namespace android { 66// --------------------------------------------------------------------------- 67 68SurfaceFlinger::SurfaceFlinger() 69 : BnSurfaceComposer(), Thread(false), 70 mTransactionFlags(0), 71 mTransactionCount(0), 72 mResizeTransationPending(false), 73 mLayersRemoved(false), 74 mBootTime(systemTime()), 75 mHardwareTest("android.permission.HARDWARE_TEST"), 76 mAccessSurfaceFlinger("android.permission.ACCESS_SURFACE_FLINGER"), 77 mReadFramebuffer("android.permission.READ_FRAME_BUFFER"), 78 mDump("android.permission.DUMP"), 79 mVisibleRegionsDirty(false), 80 mHwWorkListDirty(false), 81 mDeferReleaseConsole(false), 82 mFreezeDisplay(false), 83 mElectronBeamAnimationMode(0), 84 mFreezeCount(0), 85 mFreezeDisplayTime(0), 86 mDebugRegion(0), 87 mDebugBackground(0), 88 mDebugDisableHWC(0), 89 mDebugInSwapBuffers(0), 90 mLastSwapBufferTime(0), 91 mDebugInTransaction(0), 92 mLastTransactionTime(0), 93 mBootFinished(false), 94 mConsoleSignals(0), 95 mSecureFrameBuffer(0) 96{ 97 init(); 98} 99 100void SurfaceFlinger::init() 101{ 102 LOGI("SurfaceFlinger is starting"); 103 104 // debugging stuff... 105 char value[PROPERTY_VALUE_MAX]; 106 property_get("debug.sf.showupdates", value, "0"); 107 mDebugRegion = atoi(value); 108 property_get("debug.sf.showbackground", value, "0"); 109 mDebugBackground = atoi(value); 110 111 LOGI_IF(mDebugRegion, "showupdates enabled"); 112 LOGI_IF(mDebugBackground, "showbackground enabled"); 113} 114 115SurfaceFlinger::~SurfaceFlinger() 116{ 117 glDeleteTextures(1, &mWormholeTexName); 118} 119 120sp<IMemoryHeap> SurfaceFlinger::getCblk() const 121{ 122 return mServerHeap; 123} 124 125sp<ISurfaceComposerClient> SurfaceFlinger::createConnection() 126{ 127 sp<ISurfaceComposerClient> bclient; 128 sp<Client> client(new Client(this)); 129 status_t err = client->initCheck(); 130 if (err == NO_ERROR) { 131 bclient = client; 132 } 133 return bclient; 134} 135 136sp<ISurfaceComposerClient> SurfaceFlinger::createClientConnection() 137{ 138 sp<ISurfaceComposerClient> bclient; 139 sp<UserClient> client(new UserClient(this)); 140 status_t err = client->initCheck(); 141 if (err == NO_ERROR) { 142 bclient = client; 143 } 144 return bclient; 145} 146 147sp<IGraphicBufferAlloc> SurfaceFlinger::createGraphicBufferAlloc() 148{ 149 sp<GraphicBufferAlloc> gba(new GraphicBufferAlloc()); 150 return gba; 151} 152 153const GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) const 154{ 155 LOGE_IF(uint32_t(dpy) >= DISPLAY_COUNT, "Invalid DisplayID %d", dpy); 156 const GraphicPlane& plane(mGraphicPlanes[dpy]); 157 return plane; 158} 159 160GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) 161{ 162 return const_cast<GraphicPlane&>( 163 const_cast<SurfaceFlinger const *>(this)->graphicPlane(dpy)); 164} 165 166void SurfaceFlinger::bootFinished() 167{ 168 const nsecs_t now = systemTime(); 169 const nsecs_t duration = now - mBootTime; 170 LOGI("Boot is finished (%ld ms)", long(ns2ms(duration)) ); 171 mBootFinished = true; 172 property_set("ctl.stop", "bootanim"); 173} 174 175void SurfaceFlinger::onFirstRef() 176{ 177 run("SurfaceFlinger", PRIORITY_URGENT_DISPLAY); 178 179 // Wait for the main thread to be done with its initialization 180 mReadyToRunBarrier.wait(); 181} 182 183static inline uint16_t pack565(int r, int g, int b) { 184 return (r<<11)|(g<<5)|b; 185} 186 187status_t SurfaceFlinger::readyToRun() 188{ 189 LOGI( "SurfaceFlinger's main thread ready to run. " 190 "Initializing graphics H/W..."); 191 192 // we only support one display currently 193 int dpy = 0; 194 195 { 196 // initialize the main display 197 GraphicPlane& plane(graphicPlane(dpy)); 198 DisplayHardware* const hw = new DisplayHardware(this, dpy); 199 plane.setDisplayHardware(hw); 200 } 201 202 // create the shared control-block 203 mServerHeap = new MemoryHeapBase(4096, 204 MemoryHeapBase::READ_ONLY, "SurfaceFlinger read-only heap"); 205 LOGE_IF(mServerHeap==0, "can't create shared memory dealer"); 206 207 mServerCblk = static_cast<surface_flinger_cblk_t*>(mServerHeap->getBase()); 208 LOGE_IF(mServerCblk==0, "can't get to shared control block's address"); 209 210 new(mServerCblk) surface_flinger_cblk_t; 211 212 // initialize primary screen 213 // (other display should be initialized in the same manner, but 214 // asynchronously, as they could come and go. None of this is supported 215 // yet). 216 const GraphicPlane& plane(graphicPlane(dpy)); 217 const DisplayHardware& hw = plane.displayHardware(); 218 const uint32_t w = hw.getWidth(); 219 const uint32_t h = hw.getHeight(); 220 const uint32_t f = hw.getFormat(); 221 hw.makeCurrent(); 222 223 // initialize the shared control block 224 mServerCblk->connected |= 1<<dpy; 225 display_cblk_t* dcblk = mServerCblk->displays + dpy; 226 memset(dcblk, 0, sizeof(display_cblk_t)); 227 dcblk->w = plane.getWidth(); 228 dcblk->h = plane.getHeight(); 229 dcblk->format = f; 230 dcblk->orientation = ISurfaceComposer::eOrientationDefault; 231 dcblk->xdpi = hw.getDpiX(); 232 dcblk->ydpi = hw.getDpiY(); 233 dcblk->fps = hw.getRefreshRate(); 234 dcblk->density = hw.getDensity(); 235 236 // Initialize OpenGL|ES 237 glPixelStorei(GL_UNPACK_ALIGNMENT, 4); 238 glPixelStorei(GL_PACK_ALIGNMENT, 4); 239 glEnableClientState(GL_VERTEX_ARRAY); 240 glEnable(GL_SCISSOR_TEST); 241 glShadeModel(GL_FLAT); 242 glDisable(GL_DITHER); 243 glDisable(GL_CULL_FACE); 244 245 const uint16_t g0 = pack565(0x0F,0x1F,0x0F); 246 const uint16_t g1 = pack565(0x17,0x2f,0x17); 247 const uint16_t textureData[4] = { g0, g1, g1, g0 }; 248 glGenTextures(1, &mWormholeTexName); 249 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 250 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 251 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 252 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 253 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 254 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0, 255 GL_RGB, GL_UNSIGNED_SHORT_5_6_5, textureData); 256 257 glViewport(0, 0, w, h); 258 glMatrixMode(GL_PROJECTION); 259 glLoadIdentity(); 260 glOrthof(0, w, h, 0, 0, 1); 261 262 mReadyToRunBarrier.open(); 263 264 /* 265 * We're now ready to accept clients... 266 */ 267 268 // start boot animation 269 property_set("ctl.start", "bootanim"); 270 271 return NO_ERROR; 272} 273 274// ---------------------------------------------------------------------------- 275#if 0 276#pragma mark - 277#pragma mark Events Handler 278#endif 279 280void SurfaceFlinger::waitForEvent() 281{ 282 while (true) { 283 nsecs_t timeout = -1; 284 const nsecs_t freezeDisplayTimeout = ms2ns(5000); 285 if (UNLIKELY(isFrozen())) { 286 // wait 5 seconds 287 const nsecs_t now = systemTime(); 288 if (mFreezeDisplayTime == 0) { 289 mFreezeDisplayTime = now; 290 } 291 nsecs_t waitTime = freezeDisplayTimeout - (now - mFreezeDisplayTime); 292 timeout = waitTime>0 ? waitTime : 0; 293 } 294 295 sp<MessageBase> msg = mEventQueue.waitMessage(timeout); 296 297 // see if we timed out 298 if (isFrozen()) { 299 const nsecs_t now = systemTime(); 300 nsecs_t frozenTime = (now - mFreezeDisplayTime); 301 if (frozenTime >= freezeDisplayTimeout) { 302 // we timed out and are still frozen 303 LOGW("timeout expired mFreezeDisplay=%d, mFreezeCount=%d", 304 mFreezeDisplay, mFreezeCount); 305 mFreezeDisplayTime = 0; 306 mFreezeCount = 0; 307 mFreezeDisplay = false; 308 } 309 } 310 311 if (msg != 0) { 312 switch (msg->what) { 313 case MessageQueue::INVALIDATE: 314 // invalidate message, just return to the main loop 315 return; 316 } 317 } 318 } 319} 320 321void SurfaceFlinger::signalEvent() { 322 mEventQueue.invalidate(); 323} 324 325void SurfaceFlinger::signal() const { 326 // this is the IPC call 327 const_cast<SurfaceFlinger*>(this)->signalEvent(); 328} 329 330bool SurfaceFlinger::authenticateSurface(const sp<ISurface>& surface) const { 331 Mutex::Autolock _l(mStateLock); 332 sp<IBinder> surfBinder(surface->asBinder()); 333 334 // Check the visible layer list for the ISurface 335 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 336 size_t count = currentLayers.size(); 337 for (size_t i=0 ; i<count ; i++) { 338 const sp<LayerBase>& layer(currentLayers[i]); 339 sp<LayerBaseClient> lbc(layer->getLayerBaseClient()); 340 if (lbc != NULL && lbc->getSurfaceBinder() == surfBinder) { 341 return true; 342 } 343 } 344 345 // Check the layers in the purgatory. This check is here so that if a 346 // Surface gets destroyed before all the clients are done using it, the 347 // error will not be reported as "surface XYZ is not authenticated", but 348 // will instead fail later on when the client tries to use the surface, 349 // which should be reported as "surface XYZ returned an -ENODEV". The 350 // purgatorized layers are no less authentic than the visible ones, so this 351 // should not cause any harm. 352 size_t purgatorySize = mLayerPurgatory.size(); 353 for (size_t i=0 ; i<purgatorySize ; i++) { 354 const sp<LayerBase>& layer(mLayerPurgatory.itemAt(i)); 355 sp<LayerBaseClient> lbc(layer->getLayerBaseClient()); 356 if (lbc != NULL && lbc->getSurfaceBinder() == surfBinder) { 357 return true; 358 } 359 } 360 361 return false; 362} 363 364status_t SurfaceFlinger::postMessageAsync(const sp<MessageBase>& msg, 365 nsecs_t reltime, uint32_t flags) 366{ 367 return mEventQueue.postMessage(msg, reltime, flags); 368} 369 370status_t SurfaceFlinger::postMessageSync(const sp<MessageBase>& msg, 371 nsecs_t reltime, uint32_t flags) 372{ 373 status_t res = mEventQueue.postMessage(msg, reltime, flags); 374 if (res == NO_ERROR) { 375 msg->wait(); 376 } 377 return res; 378} 379 380// ---------------------------------------------------------------------------- 381#if 0 382#pragma mark - 383#pragma mark Main loop 384#endif 385 386bool SurfaceFlinger::threadLoop() 387{ 388 waitForEvent(); 389 390 // check for transactions 391 if (UNLIKELY(mConsoleSignals)) { 392 handleConsoleEvents(); 393 } 394 395 if (LIKELY(mTransactionCount == 0)) { 396 // if we're in a global transaction, don't do anything. 397 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 398 uint32_t transactionFlags = peekTransactionFlags(mask); 399 if (LIKELY(transactionFlags)) { 400 handleTransaction(transactionFlags); 401 } 402 } 403 404 // post surfaces (if needed) 405 handlePageFlip(); 406 407 if (UNLIKELY(mHwWorkListDirty)) { 408 // build the h/w work list 409 handleWorkList(); 410 } 411 412 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 413 if (LIKELY(hw.canDraw() && !isFrozen())) { 414 // repaint the framebuffer (if needed) 415 416 const int index = hw.getCurrentBufferIndex(); 417 GraphicLog& logger(GraphicLog::getInstance()); 418 419 logger.log(GraphicLog::SF_REPAINT, index); 420 handleRepaint(); 421 422 // inform the h/w that we're done compositing 423 logger.log(GraphicLog::SF_COMPOSITION_COMPLETE, index); 424 hw.compositionComplete(); 425 426 logger.log(GraphicLog::SF_SWAP_BUFFERS, index); 427 postFramebuffer(); 428 429 logger.log(GraphicLog::SF_REPAINT_DONE, index); 430 } else { 431 // pretend we did the post 432 hw.compositionComplete(); 433 usleep(16667); // 60 fps period 434 } 435 return true; 436} 437 438void SurfaceFlinger::postFramebuffer() 439{ 440 if (!mInvalidRegion.isEmpty()) { 441 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 442 const nsecs_t now = systemTime(); 443 mDebugInSwapBuffers = now; 444 hw.flip(mInvalidRegion); 445 mLastSwapBufferTime = systemTime() - now; 446 mDebugInSwapBuffers = 0; 447 mInvalidRegion.clear(); 448 } 449} 450 451void SurfaceFlinger::handleConsoleEvents() 452{ 453 // something to do with the console 454 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 455 456 int what = android_atomic_and(0, &mConsoleSignals); 457 if (what & eConsoleAcquired) { 458 hw.acquireScreen(); 459 // this is a temporary work-around, eventually this should be called 460 // by the power-manager 461 SurfaceFlinger::turnElectronBeamOn(mElectronBeamAnimationMode); 462 } 463 464 if (mDeferReleaseConsole && hw.isScreenAcquired()) { 465 // We got the release signal before the acquire signal 466 mDeferReleaseConsole = false; 467 hw.releaseScreen(); 468 } 469 470 if (what & eConsoleReleased) { 471 if (hw.isScreenAcquired()) { 472 hw.releaseScreen(); 473 } else { 474 mDeferReleaseConsole = true; 475 } 476 } 477 478 mDirtyRegion.set(hw.bounds()); 479} 480 481void SurfaceFlinger::handleTransaction(uint32_t transactionFlags) 482{ 483 Vector< sp<LayerBase> > ditchedLayers; 484 485 /* 486 * Perform and commit the transaction 487 */ 488 489 { // scope for the lock 490 Mutex::Autolock _l(mStateLock); 491 const nsecs_t now = systemTime(); 492 mDebugInTransaction = now; 493 494 // Here we're guaranteed that some transaction flags are set 495 // so we can call handleTransactionLocked() unconditionally. 496 // We call getTransactionFlags(), which will also clear the flags, 497 // with mStateLock held to guarantee that mCurrentState won't change 498 // until the transaction is commited. 499 500 const uint32_t mask = eTransactionNeeded | eTraversalNeeded; 501 transactionFlags = getTransactionFlags(mask); 502 handleTransactionLocked(transactionFlags, ditchedLayers); 503 504 mLastTransactionTime = systemTime() - now; 505 mDebugInTransaction = 0; 506 invalidateHwcGeometry(); 507 // here the transaction has been committed 508 } 509 510 /* 511 * Clean-up all layers that went away 512 * (do this without the lock held) 513 */ 514 515 const size_t count = ditchedLayers.size(); 516 for (size_t i=0 ; i<count ; i++) { 517 if (ditchedLayers[i] != 0) { 518 //LOGD("ditching layer %p", ditchedLayers[i].get()); 519 ditchedLayers[i]->ditch(); 520 } 521 } 522} 523 524void SurfaceFlinger::handleTransactionLocked( 525 uint32_t transactionFlags, Vector< sp<LayerBase> >& ditchedLayers) 526{ 527 const LayerVector& currentLayers(mCurrentState.layersSortedByZ); 528 const size_t count = currentLayers.size(); 529 530 /* 531 * Traversal of the children 532 * (perform the transaction for each of them if needed) 533 */ 534 535 const bool layersNeedTransaction = transactionFlags & eTraversalNeeded; 536 if (layersNeedTransaction) { 537 for (size_t i=0 ; i<count ; i++) { 538 const sp<LayerBase>& layer = currentLayers[i]; 539 uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded); 540 if (!trFlags) continue; 541 542 const uint32_t flags = layer->doTransaction(0); 543 if (flags & Layer::eVisibleRegion) 544 mVisibleRegionsDirty = true; 545 } 546 } 547 548 /* 549 * Perform our own transaction if needed 550 */ 551 552 if (transactionFlags & eTransactionNeeded) { 553 if (mCurrentState.orientation != mDrawingState.orientation) { 554 // the orientation has changed, recompute all visible regions 555 // and invalidate everything. 556 557 const int dpy = 0; 558 const int orientation = mCurrentState.orientation; 559 const uint32_t type = mCurrentState.orientationType; 560 GraphicPlane& plane(graphicPlane(dpy)); 561 plane.setOrientation(orientation); 562 563 // update the shared control block 564 const DisplayHardware& hw(plane.displayHardware()); 565 volatile display_cblk_t* dcblk = mServerCblk->displays + dpy; 566 dcblk->orientation = orientation; 567 dcblk->w = plane.getWidth(); 568 dcblk->h = plane.getHeight(); 569 570 mVisibleRegionsDirty = true; 571 mDirtyRegion.set(hw.bounds()); 572 } 573 574 if (mCurrentState.freezeDisplay != mDrawingState.freezeDisplay) { 575 // freezing or unfreezing the display -> trigger animation if needed 576 mFreezeDisplay = mCurrentState.freezeDisplay; 577 if (mFreezeDisplay) 578 mFreezeDisplayTime = 0; 579 } 580 581 if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) { 582 // layers have been added 583 mVisibleRegionsDirty = true; 584 } 585 586 // some layers might have been removed, so 587 // we need to update the regions they're exposing. 588 if (mLayersRemoved) { 589 mLayersRemoved = false; 590 mVisibleRegionsDirty = true; 591 const LayerVector& previousLayers(mDrawingState.layersSortedByZ); 592 const size_t count = previousLayers.size(); 593 for (size_t i=0 ; i<count ; i++) { 594 const sp<LayerBase>& layer(previousLayers[i]); 595 if (currentLayers.indexOf( layer ) < 0) { 596 // this layer is not visible anymore 597 ditchedLayers.add(layer); 598 mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen); 599 } 600 } 601 } 602 } 603 604 commitTransaction(); 605} 606 607sp<FreezeLock> SurfaceFlinger::getFreezeLock() const 608{ 609 return new FreezeLock(const_cast<SurfaceFlinger *>(this)); 610} 611 612void SurfaceFlinger::computeVisibleRegions( 613 const LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion) 614{ 615 const GraphicPlane& plane(graphicPlane(0)); 616 const Transform& planeTransform(plane.transform()); 617 const DisplayHardware& hw(plane.displayHardware()); 618 const Region screenRegion(hw.bounds()); 619 620 Region aboveOpaqueLayers; 621 Region aboveCoveredLayers; 622 Region dirty; 623 624 bool secureFrameBuffer = false; 625 626 size_t i = currentLayers.size(); 627 while (i--) { 628 const sp<LayerBase>& layer = currentLayers[i]; 629 layer->validateVisibility(planeTransform); 630 631 // start with the whole surface at its current location 632 const Layer::State& s(layer->drawingState()); 633 634 /* 635 * opaqueRegion: area of a surface that is fully opaque. 636 */ 637 Region opaqueRegion; 638 639 /* 640 * visibleRegion: area of a surface that is visible on screen 641 * and not fully transparent. This is essentially the layer's 642 * footprint minus the opaque regions above it. 643 * Areas covered by a translucent surface are considered visible. 644 */ 645 Region visibleRegion; 646 647 /* 648 * coveredRegion: area of a surface that is covered by all 649 * visible regions above it (which includes the translucent areas). 650 */ 651 Region coveredRegion; 652 653 654 // handle hidden surfaces by setting the visible region to empty 655 if (LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) { 656 const bool translucent = layer->needsBlending(); 657 const Rect bounds(layer->visibleBounds()); 658 visibleRegion.set(bounds); 659 visibleRegion.andSelf(screenRegion); 660 if (!visibleRegion.isEmpty()) { 661 // Remove the transparent area from the visible region 662 if (translucent) { 663 visibleRegion.subtractSelf(layer->transparentRegionScreen); 664 } 665 666 // compute the opaque region 667 const int32_t layerOrientation = layer->getOrientation(); 668 if (s.alpha==255 && !translucent && 669 ((layerOrientation & Transform::ROT_INVALID) == false)) { 670 // the opaque region is the layer's footprint 671 opaqueRegion = visibleRegion; 672 } 673 } 674 } 675 676 // Clip the covered region to the visible region 677 coveredRegion = aboveCoveredLayers.intersect(visibleRegion); 678 679 // Update aboveCoveredLayers for next (lower) layer 680 aboveCoveredLayers.orSelf(visibleRegion); 681 682 // subtract the opaque region covered by the layers above us 683 visibleRegion.subtractSelf(aboveOpaqueLayers); 684 685 // compute this layer's dirty region 686 if (layer->contentDirty) { 687 // we need to invalidate the whole region 688 dirty = visibleRegion; 689 // as well, as the old visible region 690 dirty.orSelf(layer->visibleRegionScreen); 691 layer->contentDirty = false; 692 } else { 693 /* compute the exposed region: 694 * the exposed region consists of two components: 695 * 1) what's VISIBLE now and was COVERED before 696 * 2) what's EXPOSED now less what was EXPOSED before 697 * 698 * note that (1) is conservative, we start with the whole 699 * visible region but only keep what used to be covered by 700 * something -- which mean it may have been exposed. 701 * 702 * (2) handles areas that were not covered by anything but got 703 * exposed because of a resize. 704 */ 705 const Region newExposed = visibleRegion - coveredRegion; 706 const Region oldVisibleRegion = layer->visibleRegionScreen; 707 const Region oldCoveredRegion = layer->coveredRegionScreen; 708 const Region oldExposed = oldVisibleRegion - oldCoveredRegion; 709 dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed); 710 } 711 dirty.subtractSelf(aboveOpaqueLayers); 712 713 // accumulate to the screen dirty region 714 dirtyRegion.orSelf(dirty); 715 716 // Update aboveOpaqueLayers for next (lower) layer 717 aboveOpaqueLayers.orSelf(opaqueRegion); 718 719 // Store the visible region is screen space 720 layer->setVisibleRegion(visibleRegion); 721 layer->setCoveredRegion(coveredRegion); 722 723 // If a secure layer is partially visible, lock-down the screen! 724 if (layer->isSecure() && !visibleRegion.isEmpty()) { 725 secureFrameBuffer = true; 726 } 727 } 728 729 // invalidate the areas where a layer was removed 730 dirtyRegion.orSelf(mDirtyRegionRemovedLayer); 731 mDirtyRegionRemovedLayer.clear(); 732 733 mSecureFrameBuffer = secureFrameBuffer; 734 opaqueRegion = aboveOpaqueLayers; 735} 736 737 738void SurfaceFlinger::commitTransaction() 739{ 740 mDrawingState = mCurrentState; 741 mResizeTransationPending = false; 742 mTransactionCV.broadcast(); 743} 744 745void SurfaceFlinger::handlePageFlip() 746{ 747 bool visibleRegions = mVisibleRegionsDirty; 748 const LayerVector& currentLayers(mDrawingState.layersSortedByZ); 749 visibleRegions |= lockPageFlip(currentLayers); 750 751 const DisplayHardware& hw = graphicPlane(0).displayHardware(); 752 const Region screenRegion(hw.bounds()); 753 if (visibleRegions) { 754 Region opaqueRegion; 755 computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion); 756 757 /* 758 * rebuild the visible layer list 759 */ 760 const size_t count = currentLayers.size(); 761 mVisibleLayersSortedByZ.clear(); 762 mVisibleLayersSortedByZ.setCapacity(count); 763 for (size_t i=0 ; i<count ; i++) { 764 if (!currentLayers[i]->visibleRegionScreen.isEmpty()) 765 mVisibleLayersSortedByZ.add(currentLayers[i]); 766 } 767 768 mWormholeRegion = screenRegion.subtract(opaqueRegion); 769 mVisibleRegionsDirty = false; 770 invalidateHwcGeometry(); 771 } 772 773 unlockPageFlip(currentLayers); 774 mDirtyRegion.andSelf(screenRegion); 775} 776 777void SurfaceFlinger::invalidateHwcGeometry() 778{ 779 mHwWorkListDirty = true; 780} 781 782bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers) 783{ 784 bool recomputeVisibleRegions = false; 785 size_t count = currentLayers.size(); 786 sp<LayerBase> const* layers = currentLayers.array(); 787 for (size_t i=0 ; i<count ; i++) { 788 const sp<LayerBase>& layer(layers[i]); 789 layer->lockPageFlip(recomputeVisibleRegions); 790 } 791 return recomputeVisibleRegions; 792} 793 794void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers) 795{ 796 const GraphicPlane& plane(graphicPlane(0)); 797 const Transform& planeTransform(plane.transform()); 798 size_t count = currentLayers.size(); 799 sp<LayerBase> const* layers = currentLayers.array(); 800 for (size_t i=0 ; i<count ; i++) { 801 const sp<LayerBase>& layer(layers[i]); 802 layer->unlockPageFlip(planeTransform, mDirtyRegion); 803 } 804} 805 806void SurfaceFlinger::handleWorkList() 807{ 808 mHwWorkListDirty = false; 809 HWComposer& hwc(graphicPlane(0).displayHardware().getHwComposer()); 810 if (hwc.initCheck() == NO_ERROR) { 811 const Vector< sp<LayerBase> >& currentLayers(mVisibleLayersSortedByZ); 812 const size_t count = currentLayers.size(); 813 hwc.createWorkList(count); 814 hwc_layer_t* const cur(hwc.getLayers()); 815 for (size_t i=0 ; cur && i<count ; i++) { 816 currentLayers[i]->setGeometry(&cur[i]); 817 if (mDebugDisableHWC) { 818 cur[i].compositionType = HWC_FRAMEBUFFER; 819 cur[i].flags |= HWC_SKIP_LAYER; 820 } 821 } 822 } 823} 824 825void SurfaceFlinger::handleRepaint() 826{ 827 // compute the invalid region 828 mInvalidRegion.orSelf(mDirtyRegion); 829 830 if (UNLIKELY(mDebugRegion)) { 831 debugFlashRegions(); 832 } 833 834 // set the frame buffer 835 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 836 glMatrixMode(GL_MODELVIEW); 837 glLoadIdentity(); 838 839 uint32_t flags = hw.getFlags(); 840 if ((flags & DisplayHardware::SWAP_RECTANGLE) || 841 (flags & DisplayHardware::BUFFER_PRESERVED)) 842 { 843 // we can redraw only what's dirty, but since SWAP_RECTANGLE only 844 // takes a rectangle, we must make sure to update that whole 845 // rectangle in that case 846 if (flags & DisplayHardware::SWAP_RECTANGLE) { 847 // TODO: we really should be able to pass a region to 848 // SWAP_RECTANGLE so that we don't have to redraw all this. 849 mDirtyRegion.set(mInvalidRegion.bounds()); 850 } else { 851 // in the BUFFER_PRESERVED case, obviously, we can update only 852 // what's needed and nothing more. 853 // NOTE: this is NOT a common case, as preserving the backbuffer 854 // is costly and usually involves copying the whole update back. 855 } 856 } else { 857 if (flags & DisplayHardware::PARTIAL_UPDATES) { 858 // We need to redraw the rectangle that will be updated 859 // (pushed to the framebuffer). 860 // This is needed because PARTIAL_UPDATES only takes one 861 // rectangle instead of a region (see DisplayHardware::flip()) 862 mDirtyRegion.set(mInvalidRegion.bounds()); 863 } else { 864 // we need to redraw everything (the whole screen) 865 mDirtyRegion.set(hw.bounds()); 866 mInvalidRegion = mDirtyRegion; 867 } 868 } 869 870 // compose all surfaces 871 composeSurfaces(mDirtyRegion); 872 873 // clear the dirty regions 874 mDirtyRegion.clear(); 875} 876 877void SurfaceFlinger::composeSurfaces(const Region& dirty) 878{ 879 if (UNLIKELY(!mWormholeRegion.isEmpty())) { 880 // should never happen unless the window manager has a bug 881 // draw something... 882 drawWormhole(); 883 } 884 885 status_t err = NO_ERROR; 886 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 887 size_t count = layers.size(); 888 889 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 890 HWComposer& hwc(hw.getHwComposer()); 891 hwc_layer_t* const cur(hwc.getLayers()); 892 893 LOGE_IF(cur && hwc.getNumLayers() != count, 894 "HAL number of layers (%d) doesn't match surfaceflinger (%d)", 895 hwc.getNumLayers(), count); 896 897 // just to be extra-safe, use the smallest count 898 if (hwc.initCheck() == NO_ERROR) { 899 count = count < hwc.getNumLayers() ? count : hwc.getNumLayers(); 900 } 901 902 /* 903 * update the per-frame h/w composer data for each layer 904 * and build the transparent region of the FB 905 */ 906 Region transparent; 907 if (cur) { 908 for (size_t i=0 ; i<count ; i++) { 909 const sp<LayerBase>& layer(layers[i]); 910 layer->setPerFrameData(&cur[i]); 911 } 912 err = hwc.prepare(); 913 LOGE_IF(err, "HWComposer::prepare failed (%s)", strerror(-err)); 914 915 if (err == NO_ERROR) { 916 for (size_t i=0 ; i<count ; i++) { 917 if (cur[i].hints & HWC_HINT_CLEAR_FB) { 918 const sp<LayerBase>& layer(layers[i]); 919 if (!(layer->needsBlending())) { 920 transparent.orSelf(layer->visibleRegionScreen); 921 } 922 } 923 } 924 925 /* 926 * clear the area of the FB that need to be transparent 927 */ 928 transparent.andSelf(dirty); 929 if (!transparent.isEmpty()) { 930 glClearColor(0,0,0,0); 931 Region::const_iterator it = transparent.begin(); 932 Region::const_iterator const end = transparent.end(); 933 const int32_t height = hw.getHeight(); 934 while (it != end) { 935 const Rect& r(*it++); 936 const GLint sy = height - (r.top + r.height()); 937 glScissor(r.left, sy, r.width(), r.height()); 938 glClear(GL_COLOR_BUFFER_BIT); 939 } 940 } 941 } 942 } 943 944 945 /* 946 * and then, render the layers targeted at the framebuffer 947 */ 948 for (size_t i=0 ; i<count ; i++) { 949 if (cur) { 950 if ((cur[i].compositionType != HWC_FRAMEBUFFER) && 951 !(cur[i].flags & HWC_SKIP_LAYER)) { 952 // skip layers handled by the HAL 953 continue; 954 } 955 } 956 957 const sp<LayerBase>& layer(layers[i]); 958 const Region clip(dirty.intersect(layer->visibleRegionScreen)); 959 if (!clip.isEmpty()) { 960 layer->draw(clip); 961 } 962 } 963} 964 965void SurfaceFlinger::debugFlashRegions() 966{ 967 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 968 const uint32_t flags = hw.getFlags(); 969 970 if (!((flags & DisplayHardware::SWAP_RECTANGLE) || 971 (flags & DisplayHardware::BUFFER_PRESERVED))) { 972 const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ? 973 mDirtyRegion.bounds() : hw.bounds()); 974 composeSurfaces(repaint); 975 } 976 977 TextureManager::deactivateTextures(); 978 979 glDisable(GL_BLEND); 980 glDisable(GL_DITHER); 981 glDisable(GL_SCISSOR_TEST); 982 983 static int toggle = 0; 984 toggle = 1 - toggle; 985 if (toggle) { 986 glColor4f(1, 0, 1, 1); 987 } else { 988 glColor4f(1, 1, 0, 1); 989 } 990 991 Region::const_iterator it = mDirtyRegion.begin(); 992 Region::const_iterator const end = mDirtyRegion.end(); 993 while (it != end) { 994 const Rect& r = *it++; 995 GLfloat vertices[][2] = { 996 { r.left, r.top }, 997 { r.left, r.bottom }, 998 { r.right, r.bottom }, 999 { r.right, r.top } 1000 }; 1001 glVertexPointer(2, GL_FLOAT, 0, vertices); 1002 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1003 } 1004 1005 if (mInvalidRegion.isEmpty()) { 1006 mDirtyRegion.dump("mDirtyRegion"); 1007 mInvalidRegion.dump("mInvalidRegion"); 1008 } 1009 hw.flip(mInvalidRegion); 1010 1011 if (mDebugRegion > 1) 1012 usleep(mDebugRegion * 1000); 1013 1014 glEnable(GL_SCISSOR_TEST); 1015 //mDirtyRegion.dump("mDirtyRegion"); 1016} 1017 1018void SurfaceFlinger::drawWormhole() const 1019{ 1020 const Region region(mWormholeRegion.intersect(mDirtyRegion)); 1021 if (region.isEmpty()) 1022 return; 1023 1024 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1025 const int32_t width = hw.getWidth(); 1026 const int32_t height = hw.getHeight(); 1027 1028 glDisable(GL_BLEND); 1029 glDisable(GL_DITHER); 1030 1031 if (LIKELY(!mDebugBackground)) { 1032 glClearColor(0,0,0,0); 1033 Region::const_iterator it = region.begin(); 1034 Region::const_iterator const end = region.end(); 1035 while (it != end) { 1036 const Rect& r = *it++; 1037 const GLint sy = height - (r.top + r.height()); 1038 glScissor(r.left, sy, r.width(), r.height()); 1039 glClear(GL_COLOR_BUFFER_BIT); 1040 } 1041 } else { 1042 const GLshort vertices[][2] = { { 0, 0 }, { width, 0 }, 1043 { width, height }, { 0, height } }; 1044 const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } }; 1045 glVertexPointer(2, GL_SHORT, 0, vertices); 1046 glTexCoordPointer(2, GL_SHORT, 0, tcoords); 1047 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1048#if defined(GL_OES_EGL_image_external) 1049 if (GLExtensions::getInstance().haveTextureExternal()) { 1050 glDisable(GL_TEXTURE_EXTERNAL_OES); 1051 } 1052#endif 1053 glEnable(GL_TEXTURE_2D); 1054 glBindTexture(GL_TEXTURE_2D, mWormholeTexName); 1055 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1056 glMatrixMode(GL_TEXTURE); 1057 glLoadIdentity(); 1058 glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1); 1059 Region::const_iterator it = region.begin(); 1060 Region::const_iterator const end = region.end(); 1061 while (it != end) { 1062 const Rect& r = *it++; 1063 const GLint sy = height - (r.top + r.height()); 1064 glScissor(r.left, sy, r.width(), r.height()); 1065 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1066 } 1067 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1068 glLoadIdentity(); 1069 glMatrixMode(GL_MODELVIEW); 1070 } 1071} 1072 1073void SurfaceFlinger::debugShowFPS() const 1074{ 1075 static int mFrameCount; 1076 static int mLastFrameCount = 0; 1077 static nsecs_t mLastFpsTime = 0; 1078 static float mFps = 0; 1079 mFrameCount++; 1080 nsecs_t now = systemTime(); 1081 nsecs_t diff = now - mLastFpsTime; 1082 if (diff > ms2ns(250)) { 1083 mFps = ((mFrameCount - mLastFrameCount) * float(s2ns(1))) / diff; 1084 mLastFpsTime = now; 1085 mLastFrameCount = mFrameCount; 1086 } 1087 // XXX: mFPS has the value we want 1088 } 1089 1090status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer) 1091{ 1092 Mutex::Autolock _l(mStateLock); 1093 addLayer_l(layer); 1094 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1095 return NO_ERROR; 1096} 1097 1098status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer) 1099{ 1100 ssize_t i = mCurrentState.layersSortedByZ.add(layer); 1101 return (i < 0) ? status_t(i) : status_t(NO_ERROR); 1102} 1103 1104ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client, 1105 const sp<LayerBaseClient>& lbc) 1106{ 1107 // attach this layer to the client 1108 size_t name = client->attachLayer(lbc); 1109 1110 Mutex::Autolock _l(mStateLock); 1111 1112 // add this layer to the current state list 1113 addLayer_l(lbc); 1114 1115 return ssize_t(name); 1116} 1117 1118status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer) 1119{ 1120 Mutex::Autolock _l(mStateLock); 1121 status_t err = purgatorizeLayer_l(layer); 1122 if (err == NO_ERROR) 1123 setTransactionFlags(eTransactionNeeded); 1124 return err; 1125} 1126 1127status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase) 1128{ 1129 sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient()); 1130 if (lbc != 0) { 1131 mLayerMap.removeItem( lbc->getSurfaceBinder() ); 1132 } 1133 ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase); 1134 if (index >= 0) { 1135 mLayersRemoved = true; 1136 return NO_ERROR; 1137 } 1138 return status_t(index); 1139} 1140 1141status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase) 1142{ 1143 // First add the layer to the purgatory list, which makes sure it won't 1144 // go away, then remove it from the main list (through a transaction). 1145 ssize_t err = removeLayer_l(layerBase); 1146 if (err >= 0) { 1147 mLayerPurgatory.add(layerBase); 1148 } 1149 1150 layerBase->onRemoved(); 1151 1152 // it's possible that we don't find a layer, because it might 1153 // have been destroyed already -- this is not technically an error 1154 // from the user because there is a race between Client::destroySurface(), 1155 // ~Client() and ~ISurface(). 1156 return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err; 1157} 1158 1159status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer) 1160{ 1161 layer->forceVisibilityTransaction(); 1162 setTransactionFlags(eTraversalNeeded); 1163 return NO_ERROR; 1164} 1165 1166uint32_t SurfaceFlinger::peekTransactionFlags(uint32_t flags) 1167{ 1168 return android_atomic_release_load(&mTransactionFlags); 1169} 1170 1171uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags) 1172{ 1173 return android_atomic_and(~flags, &mTransactionFlags) & flags; 1174} 1175 1176uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags) 1177{ 1178 uint32_t old = android_atomic_or(flags, &mTransactionFlags); 1179 if ((old & flags)==0) { // wake the server up 1180 signalEvent(); 1181 } 1182 return old; 1183} 1184 1185void SurfaceFlinger::openGlobalTransaction() 1186{ 1187 android_atomic_inc(&mTransactionCount); 1188} 1189 1190void SurfaceFlinger::closeGlobalTransaction() 1191{ 1192 if (android_atomic_dec(&mTransactionCount) == 1) { 1193 signalEvent(); 1194 1195 // if there is a transaction with a resize, wait for it to 1196 // take effect before returning. 1197 Mutex::Autolock _l(mStateLock); 1198 while (mResizeTransationPending) { 1199 status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5)); 1200 if (CC_UNLIKELY(err != NO_ERROR)) { 1201 // just in case something goes wrong in SF, return to the 1202 // called after a few seconds. 1203 LOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!"); 1204 mResizeTransationPending = false; 1205 break; 1206 } 1207 } 1208 } 1209} 1210 1211status_t SurfaceFlinger::freezeDisplay(DisplayID dpy, uint32_t flags) 1212{ 1213 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1214 return BAD_VALUE; 1215 1216 Mutex::Autolock _l(mStateLock); 1217 mCurrentState.freezeDisplay = 1; 1218 setTransactionFlags(eTransactionNeeded); 1219 1220 // flags is intended to communicate some sort of animation behavior 1221 // (for instance fading) 1222 return NO_ERROR; 1223} 1224 1225status_t SurfaceFlinger::unfreezeDisplay(DisplayID dpy, uint32_t flags) 1226{ 1227 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1228 return BAD_VALUE; 1229 1230 Mutex::Autolock _l(mStateLock); 1231 mCurrentState.freezeDisplay = 0; 1232 setTransactionFlags(eTransactionNeeded); 1233 1234 // flags is intended to communicate some sort of animation behavior 1235 // (for instance fading) 1236 return NO_ERROR; 1237} 1238 1239int SurfaceFlinger::setOrientation(DisplayID dpy, 1240 int orientation, uint32_t flags) 1241{ 1242 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 1243 return BAD_VALUE; 1244 1245 Mutex::Autolock _l(mStateLock); 1246 if (mCurrentState.orientation != orientation) { 1247 if (uint32_t(orientation)<=eOrientation270 || orientation==42) { 1248 mCurrentState.orientationType = flags; 1249 mCurrentState.orientation = orientation; 1250 setTransactionFlags(eTransactionNeeded); 1251 mTransactionCV.wait(mStateLock); 1252 } else { 1253 orientation = BAD_VALUE; 1254 } 1255 } 1256 return orientation; 1257} 1258 1259sp<ISurface> SurfaceFlinger::createSurface( 1260 ISurfaceComposerClient::surface_data_t* params, 1261 const String8& name, 1262 const sp<Client>& client, 1263 DisplayID d, uint32_t w, uint32_t h, PixelFormat format, 1264 uint32_t flags) 1265{ 1266 sp<LayerBaseClient> layer; 1267 sp<LayerBaseClient::Surface> surfaceHandle; 1268 1269 if (int32_t(w|h) < 0) { 1270 LOGE("createSurface() failed, w or h is negative (w=%d, h=%d)", 1271 int(w), int(h)); 1272 return surfaceHandle; 1273 } 1274 1275 //LOGD("createSurface for pid %d (%d x %d)", pid, w, h); 1276 sp<Layer> normalLayer; 1277 switch (flags & eFXSurfaceMask) { 1278 case eFXSurfaceNormal: 1279 normalLayer = createNormalSurface(client, d, w, h, flags, format); 1280 layer = normalLayer; 1281 break; 1282 case eFXSurfaceBlur: 1283 // for now we treat Blur as Dim, until we can implement it 1284 // efficiently. 1285 case eFXSurfaceDim: 1286 layer = createDimSurface(client, d, w, h, flags); 1287 break; 1288 } 1289 1290 if (layer != 0) { 1291 layer->initStates(w, h, flags); 1292 layer->setName(name); 1293 ssize_t token = addClientLayer(client, layer); 1294 1295 surfaceHandle = layer->getSurface(); 1296 if (surfaceHandle != 0) { 1297 params->token = token; 1298 params->identity = surfaceHandle->getIdentity(); 1299 params->width = w; 1300 params->height = h; 1301 params->format = format; 1302 if (normalLayer != 0) { 1303 Mutex::Autolock _l(mStateLock); 1304 mLayerMap.add(surfaceHandle->asBinder(), normalLayer); 1305 } 1306 } 1307 1308 setTransactionFlags(eTransactionNeeded); 1309 } 1310 1311 return surfaceHandle; 1312} 1313 1314sp<Layer> SurfaceFlinger::createNormalSurface( 1315 const sp<Client>& client, DisplayID display, 1316 uint32_t w, uint32_t h, uint32_t flags, 1317 PixelFormat& format) 1318{ 1319 // initialize the surfaces 1320 switch (format) { // TODO: take h/w into account 1321 case PIXEL_FORMAT_TRANSPARENT: 1322 case PIXEL_FORMAT_TRANSLUCENT: 1323 format = PIXEL_FORMAT_RGBA_8888; 1324 break; 1325 case PIXEL_FORMAT_OPAQUE: 1326#ifdef NO_RGBX_8888 1327 format = PIXEL_FORMAT_RGB_565; 1328#else 1329 format = PIXEL_FORMAT_RGBX_8888; 1330#endif 1331 break; 1332 } 1333 1334#ifdef NO_RGBX_8888 1335 if (format == PIXEL_FORMAT_RGBX_8888) 1336 format = PIXEL_FORMAT_RGBA_8888; 1337#endif 1338 1339 sp<Layer> layer = new Layer(this, display, client); 1340 status_t err = layer->setBuffers(w, h, format, flags); 1341 if (LIKELY(err != NO_ERROR)) { 1342 LOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err)); 1343 layer.clear(); 1344 } 1345 return layer; 1346} 1347 1348sp<LayerDim> SurfaceFlinger::createDimSurface( 1349 const sp<Client>& client, DisplayID display, 1350 uint32_t w, uint32_t h, uint32_t flags) 1351{ 1352 sp<LayerDim> layer = new LayerDim(this, display, client); 1353 layer->initStates(w, h, flags); 1354 return layer; 1355} 1356 1357status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid) 1358{ 1359 /* 1360 * called by the window manager, when a surface should be marked for 1361 * destruction. 1362 * 1363 * The surface is removed from the current and drawing lists, but placed 1364 * in the purgatory queue, so it's not destroyed right-away (we need 1365 * to wait for all client's references to go away first). 1366 */ 1367 1368 status_t err = NAME_NOT_FOUND; 1369 Mutex::Autolock _l(mStateLock); 1370 sp<LayerBaseClient> layer = client->getLayerUser(sid); 1371 if (layer != 0) { 1372 err = purgatorizeLayer_l(layer); 1373 if (err == NO_ERROR) { 1374 setTransactionFlags(eTransactionNeeded); 1375 } 1376 } 1377 return err; 1378} 1379 1380status_t SurfaceFlinger::destroySurface(const sp<LayerBaseClient>& layer) 1381{ 1382 // called by ~ISurface() when all references are gone 1383 1384 class MessageDestroySurface : public MessageBase { 1385 SurfaceFlinger* flinger; 1386 sp<LayerBaseClient> layer; 1387 public: 1388 MessageDestroySurface( 1389 SurfaceFlinger* flinger, const sp<LayerBaseClient>& layer) 1390 : flinger(flinger), layer(layer) { } 1391 virtual bool handler() { 1392 sp<LayerBaseClient> l(layer); 1393 layer.clear(); // clear it outside of the lock; 1394 Mutex::Autolock _l(flinger->mStateLock); 1395 /* 1396 * remove the layer from the current list -- chances are that it's 1397 * not in the list anyway, because it should have been removed 1398 * already upon request of the client (eg: window manager). 1399 * However, a buggy client could have not done that. 1400 * Since we know we don't have any more clients, we don't need 1401 * to use the purgatory. 1402 */ 1403 status_t err = flinger->removeLayer_l(l); 1404 if (err == NAME_NOT_FOUND) { 1405 // The surface wasn't in the current list, which means it was 1406 // removed already, which means it is in the purgatory, 1407 // and need to be removed from there. 1408 // This needs to happen from the main thread since its dtor 1409 // must run from there (b/c of OpenGL ES). Additionally, we 1410 // can't really acquire our internal lock from 1411 // destroySurface() -- see postMessage() below. 1412 ssize_t idx = flinger->mLayerPurgatory.remove(l); 1413 LOGE_IF(idx < 0, 1414 "layer=%p is not in the purgatory list", l.get()); 1415 } 1416 1417 LOGE_IF(err<0 && err != NAME_NOT_FOUND, 1418 "error removing layer=%p (%s)", l.get(), strerror(-err)); 1419 return true; 1420 } 1421 }; 1422 1423 postMessageAsync( new MessageDestroySurface(this, layer) ); 1424 return NO_ERROR; 1425} 1426 1427status_t SurfaceFlinger::setClientState( 1428 const sp<Client>& client, 1429 int32_t count, 1430 const layer_state_t* states) 1431{ 1432 Mutex::Autolock _l(mStateLock); 1433 uint32_t flags = 0; 1434 for (int i=0 ; i<count ; i++) { 1435 const layer_state_t& s(states[i]); 1436 sp<LayerBaseClient> layer(client->getLayerUser(s.surface)); 1437 if (layer != 0) { 1438 const uint32_t what = s.what; 1439 if (what & ePositionChanged) { 1440 if (layer->setPosition(s.x, s.y)) 1441 flags |= eTraversalNeeded; 1442 } 1443 if (what & eLayerChanged) { 1444 ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer); 1445 if (layer->setLayer(s.z)) { 1446 mCurrentState.layersSortedByZ.removeAt(idx); 1447 mCurrentState.layersSortedByZ.add(layer); 1448 // we need traversal (state changed) 1449 // AND transaction (list changed) 1450 flags |= eTransactionNeeded|eTraversalNeeded; 1451 } 1452 } 1453 if (what & eSizeChanged) { 1454 if (layer->setSize(s.w, s.h)) { 1455 flags |= eTraversalNeeded; 1456 mResizeTransationPending = true; 1457 } 1458 } 1459 if (what & eAlphaChanged) { 1460 if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f))) 1461 flags |= eTraversalNeeded; 1462 } 1463 if (what & eMatrixChanged) { 1464 if (layer->setMatrix(s.matrix)) 1465 flags |= eTraversalNeeded; 1466 } 1467 if (what & eTransparentRegionChanged) { 1468 if (layer->setTransparentRegionHint(s.transparentRegion)) 1469 flags |= eTraversalNeeded; 1470 } 1471 if (what & eVisibilityChanged) { 1472 if (layer->setFlags(s.flags, s.mask)) 1473 flags |= eTraversalNeeded; 1474 } 1475 } 1476 } 1477 if (flags) { 1478 setTransactionFlags(flags); 1479 } 1480 return NO_ERROR; 1481} 1482 1483void SurfaceFlinger::screenReleased(int dpy) 1484{ 1485 // this may be called by a signal handler, we can't do too much in here 1486 android_atomic_or(eConsoleReleased, &mConsoleSignals); 1487 signalEvent(); 1488} 1489 1490void SurfaceFlinger::screenAcquired(int dpy) 1491{ 1492 // this may be called by a signal handler, we can't do too much in here 1493 android_atomic_or(eConsoleAcquired, &mConsoleSignals); 1494 signalEvent(); 1495} 1496 1497status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args) 1498{ 1499 const size_t SIZE = 4096; 1500 char buffer[SIZE]; 1501 String8 result; 1502 if (!mDump.checkCalling()) { 1503 snprintf(buffer, SIZE, "Permission Denial: " 1504 "can't dump SurfaceFlinger from pid=%d, uid=%d\n", 1505 IPCThreadState::self()->getCallingPid(), 1506 IPCThreadState::self()->getCallingUid()); 1507 result.append(buffer); 1508 } else { 1509 1510 // figure out if we're stuck somewhere 1511 const nsecs_t now = systemTime(); 1512 const nsecs_t inSwapBuffers(mDebugInSwapBuffers); 1513 const nsecs_t inTransaction(mDebugInTransaction); 1514 nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0; 1515 nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0; 1516 1517 // Try to get the main lock, but don't insist if we can't 1518 // (this would indicate SF is stuck, but we want to be able to 1519 // print something in dumpsys). 1520 int retry = 3; 1521 while (mStateLock.tryLock()<0 && --retry>=0) { 1522 usleep(1000000); 1523 } 1524 const bool locked(retry >= 0); 1525 if (!locked) { 1526 snprintf(buffer, SIZE, 1527 "SurfaceFlinger appears to be unresponsive, " 1528 "dumping anyways (no locks held)\n"); 1529 result.append(buffer); 1530 } 1531 1532 /* 1533 * Dump the visible layer list 1534 */ 1535 const LayerVector& currentLayers = mCurrentState.layersSortedByZ; 1536 const size_t count = currentLayers.size(); 1537 snprintf(buffer, SIZE, "Visible layers (count = %d)\n", count); 1538 result.append(buffer); 1539 for (size_t i=0 ; i<count ; i++) { 1540 const sp<LayerBase>& layer(currentLayers[i]); 1541 layer->dump(result, buffer, SIZE); 1542 const Layer::State& s(layer->drawingState()); 1543 s.transparentRegion.dump(result, "transparentRegion"); 1544 layer->transparentRegionScreen.dump(result, "transparentRegionScreen"); 1545 layer->visibleRegionScreen.dump(result, "visibleRegionScreen"); 1546 } 1547 1548 /* 1549 * Dump the layers in the purgatory 1550 */ 1551 1552 const size_t purgatorySize = mLayerPurgatory.size(); 1553 snprintf(buffer, SIZE, "Purgatory state (%d entries)\n", purgatorySize); 1554 result.append(buffer); 1555 for (size_t i=0 ; i<purgatorySize ; i++) { 1556 const sp<LayerBase>& layer(mLayerPurgatory.itemAt(i)); 1557 layer->shortDump(result, buffer, SIZE); 1558 } 1559 1560 /* 1561 * Dump SurfaceFlinger global state 1562 */ 1563 1564 snprintf(buffer, SIZE, "SurfaceFlinger global state\n"); 1565 result.append(buffer); 1566 mWormholeRegion.dump(result, "WormholeRegion"); 1567 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1568 snprintf(buffer, SIZE, 1569 " display frozen: %s, freezeCount=%d, orientation=%d, canDraw=%d\n", 1570 mFreezeDisplay?"yes":"no", mFreezeCount, 1571 mCurrentState.orientation, hw.canDraw()); 1572 result.append(buffer); 1573 snprintf(buffer, SIZE, 1574 " last eglSwapBuffers() time: %f us\n" 1575 " last transaction time : %f us\n", 1576 mLastSwapBufferTime/1000.0, mLastTransactionTime/1000.0); 1577 result.append(buffer); 1578 1579 if (inSwapBuffersDuration || !locked) { 1580 snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n", 1581 inSwapBuffersDuration/1000.0); 1582 result.append(buffer); 1583 } 1584 1585 if (inTransactionDuration || !locked) { 1586 snprintf(buffer, SIZE, " transaction time: %f us\n", 1587 inTransactionDuration/1000.0); 1588 result.append(buffer); 1589 } 1590 1591 /* 1592 * Dump HWComposer state 1593 */ 1594 HWComposer& hwc(hw.getHwComposer()); 1595 snprintf(buffer, SIZE, " h/w composer %s and %s\n", 1596 hwc.initCheck()==NO_ERROR ? "present" : "not present", 1597 mDebugDisableHWC ? "disabled" : "enabled"); 1598 result.append(buffer); 1599 hwc.dump(result, buffer, SIZE); 1600 1601 /* 1602 * Dump gralloc state 1603 */ 1604 const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get()); 1605 alloc.dump(result); 1606 hw.dump(result); 1607 1608 if (locked) { 1609 mStateLock.unlock(); 1610 } 1611 } 1612 write(fd, result.string(), result.size()); 1613 return NO_ERROR; 1614} 1615 1616status_t SurfaceFlinger::onTransact( 1617 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 1618{ 1619 switch (code) { 1620 case CREATE_CONNECTION: 1621 case OPEN_GLOBAL_TRANSACTION: 1622 case CLOSE_GLOBAL_TRANSACTION: 1623 case SET_ORIENTATION: 1624 case FREEZE_DISPLAY: 1625 case UNFREEZE_DISPLAY: 1626 case BOOT_FINISHED: 1627 case TURN_ELECTRON_BEAM_OFF: 1628 case TURN_ELECTRON_BEAM_ON: 1629 { 1630 // codes that require permission check 1631 IPCThreadState* ipc = IPCThreadState::self(); 1632 const int pid = ipc->getCallingPid(); 1633 const int uid = ipc->getCallingUid(); 1634 if ((uid != AID_GRAPHICS) && !mAccessSurfaceFlinger.check(pid, uid)) { 1635 LOGE("Permission Denial: " 1636 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1637 return PERMISSION_DENIED; 1638 } 1639 break; 1640 } 1641 case CAPTURE_SCREEN: 1642 { 1643 // codes that require permission check 1644 IPCThreadState* ipc = IPCThreadState::self(); 1645 const int pid = ipc->getCallingPid(); 1646 const int uid = ipc->getCallingUid(); 1647 if ((uid != AID_GRAPHICS) && !mReadFramebuffer.check(pid, uid)) { 1648 LOGE("Permission Denial: " 1649 "can't read framebuffer pid=%d, uid=%d", pid, uid); 1650 return PERMISSION_DENIED; 1651 } 1652 break; 1653 } 1654 } 1655 1656 status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags); 1657 if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) { 1658 CHECK_INTERFACE(ISurfaceComposer, data, reply); 1659 if (UNLIKELY(!mHardwareTest.checkCalling())) { 1660 IPCThreadState* ipc = IPCThreadState::self(); 1661 const int pid = ipc->getCallingPid(); 1662 const int uid = ipc->getCallingUid(); 1663 LOGE("Permission Denial: " 1664 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid); 1665 return PERMISSION_DENIED; 1666 } 1667 int n; 1668 switch (code) { 1669 case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE 1670 case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE 1671 return NO_ERROR; 1672 case 1002: // SHOW_UPDATES 1673 n = data.readInt32(); 1674 mDebugRegion = n ? n : (mDebugRegion ? 0 : 1); 1675 return NO_ERROR; 1676 case 1003: // SHOW_BACKGROUND 1677 n = data.readInt32(); 1678 mDebugBackground = n ? 1 : 0; 1679 return NO_ERROR; 1680 case 1008: // toggle use of hw composer 1681 n = data.readInt32(); 1682 mDebugDisableHWC = n ? 1 : 0; 1683 invalidateHwcGeometry(); 1684 // fall-through... 1685 case 1004:{ // repaint everything 1686 Mutex::Autolock _l(mStateLock); 1687 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1688 mDirtyRegion.set(hw.bounds()); // careful that's not thread-safe 1689 signalEvent(); 1690 return NO_ERROR; 1691 } 1692 case 1005:{ // force transaction 1693 setTransactionFlags(eTransactionNeeded|eTraversalNeeded); 1694 return NO_ERROR; 1695 } 1696 case 1006:{ // enable/disable GraphicLog 1697 int enabled = data.readInt32(); 1698 GraphicLog::getInstance().setEnabled(enabled); 1699 return NO_ERROR; 1700 } 1701 case 1007: // set mFreezeCount 1702 mFreezeCount = data.readInt32(); 1703 mFreezeDisplayTime = 0; 1704 return NO_ERROR; 1705 case 1010: // interrogate. 1706 reply->writeInt32(0); 1707 reply->writeInt32(0); 1708 reply->writeInt32(mDebugRegion); 1709 reply->writeInt32(mDebugBackground); 1710 return NO_ERROR; 1711 case 1013: { 1712 Mutex::Autolock _l(mStateLock); 1713 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1714 reply->writeInt32(hw.getPageFlipCount()); 1715 } 1716 return NO_ERROR; 1717 } 1718 } 1719 return err; 1720} 1721 1722// --------------------------------------------------------------------------- 1723 1724status_t SurfaceFlinger::renderScreenToTextureLocked(DisplayID dpy, 1725 GLuint* textureName, GLfloat* uOut, GLfloat* vOut) 1726{ 1727 if (!GLExtensions::getInstance().haveFramebufferObject()) 1728 return INVALID_OPERATION; 1729 1730 // get screen geometry 1731 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 1732 const uint32_t hw_w = hw.getWidth(); 1733 const uint32_t hw_h = hw.getHeight(); 1734 GLfloat u = 1; 1735 GLfloat v = 1; 1736 1737 // make sure to clear all GL error flags 1738 while ( glGetError() != GL_NO_ERROR ) ; 1739 1740 // create a FBO 1741 GLuint name, tname; 1742 glGenTextures(1, &tname); 1743 glBindTexture(GL_TEXTURE_2D, tname); 1744 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1745 hw_w, hw_h, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1746 if (glGetError() != GL_NO_ERROR) { 1747 while ( glGetError() != GL_NO_ERROR ) ; 1748 GLint tw = (2 << (31 - clz(hw_w))); 1749 GLint th = (2 << (31 - clz(hw_h))); 1750 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1751 tw, th, 0, GL_RGB, GL_UNSIGNED_BYTE, 0); 1752 u = GLfloat(hw_w) / tw; 1753 v = GLfloat(hw_h) / th; 1754 } 1755 glGenFramebuffersOES(1, &name); 1756 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 1757 glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES, 1758 GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0); 1759 1760 // redraw the screen entirely... 1761 glClearColor(0,0,0,1); 1762 glClear(GL_COLOR_BUFFER_BIT); 1763 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 1764 const size_t count = layers.size(); 1765 for (size_t i=0 ; i<count ; ++i) { 1766 const sp<LayerBase>& layer(layers[i]); 1767 layer->drawForSreenShot(); 1768 } 1769 1770 // back to main framebuffer 1771 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1772 glDisable(GL_SCISSOR_TEST); 1773 glDeleteFramebuffersOES(1, &name); 1774 1775 *textureName = tname; 1776 *uOut = u; 1777 *vOut = v; 1778 return NO_ERROR; 1779} 1780 1781// --------------------------------------------------------------------------- 1782 1783status_t SurfaceFlinger::electronBeamOffAnimationImplLocked() 1784{ 1785 status_t result = PERMISSION_DENIED; 1786 1787 if (!GLExtensions::getInstance().haveFramebufferObject()) 1788 return INVALID_OPERATION; 1789 1790 // get screen geometry 1791 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1792 const uint32_t hw_w = hw.getWidth(); 1793 const uint32_t hw_h = hw.getHeight(); 1794 const Region screenBounds(hw.bounds()); 1795 1796 GLfloat u, v; 1797 GLuint tname; 1798 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1799 if (result != NO_ERROR) { 1800 return result; 1801 } 1802 1803 GLfloat vtx[8]; 1804 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1805 glEnable(GL_TEXTURE_2D); 1806 glBindTexture(GL_TEXTURE_2D, tname); 1807 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 1808 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1809 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1810 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1811 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1812 glVertexPointer(2, GL_FLOAT, 0, vtx); 1813 1814 class s_curve_interpolator { 1815 const float nbFrames, s, v; 1816 public: 1817 s_curve_interpolator(int nbFrames, float s) 1818 : nbFrames(1.0f / (nbFrames-1)), s(s), 1819 v(1.0f + expf(-s + 0.5f*s)) { 1820 } 1821 float operator()(int f) { 1822 const float x = f * nbFrames; 1823 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1824 } 1825 }; 1826 1827 class v_stretch { 1828 const GLfloat hw_w, hw_h; 1829 public: 1830 v_stretch(uint32_t hw_w, uint32_t hw_h) 1831 : hw_w(hw_w), hw_h(hw_h) { 1832 } 1833 void operator()(GLfloat* vtx, float v) { 1834 const GLfloat w = hw_w + (hw_w * v); 1835 const GLfloat h = hw_h - (hw_h * v); 1836 const GLfloat x = (hw_w - w) * 0.5f; 1837 const GLfloat y = (hw_h - h) * 0.5f; 1838 vtx[0] = x; vtx[1] = y; 1839 vtx[2] = x; vtx[3] = y + h; 1840 vtx[4] = x + w; vtx[5] = y + h; 1841 vtx[6] = x + w; vtx[7] = y; 1842 } 1843 }; 1844 1845 class h_stretch { 1846 const GLfloat hw_w, hw_h; 1847 public: 1848 h_stretch(uint32_t hw_w, uint32_t hw_h) 1849 : hw_w(hw_w), hw_h(hw_h) { 1850 } 1851 void operator()(GLfloat* vtx, float v) { 1852 const GLfloat w = hw_w - (hw_w * v); 1853 const GLfloat h = 1.0f; 1854 const GLfloat x = (hw_w - w) * 0.5f; 1855 const GLfloat y = (hw_h - h) * 0.5f; 1856 vtx[0] = x; vtx[1] = y; 1857 vtx[2] = x; vtx[3] = y + h; 1858 vtx[4] = x + w; vtx[5] = y + h; 1859 vtx[6] = x + w; vtx[7] = y; 1860 } 1861 }; 1862 1863 // the full animation is 24 frames 1864 const int nbFrames = 12; 1865 s_curve_interpolator itr(nbFrames, 7.5f); 1866 s_curve_interpolator itg(nbFrames, 8.0f); 1867 s_curve_interpolator itb(nbFrames, 8.5f); 1868 1869 v_stretch vverts(hw_w, hw_h); 1870 glEnable(GL_BLEND); 1871 glBlendFunc(GL_ONE, GL_ONE); 1872 for (int i=0 ; i<nbFrames ; i++) { 1873 float x, y, w, h; 1874 const float vr = itr(i); 1875 const float vg = itg(i); 1876 const float vb = itb(i); 1877 1878 // clear screen 1879 glColorMask(1,1,1,1); 1880 glClear(GL_COLOR_BUFFER_BIT); 1881 glEnable(GL_TEXTURE_2D); 1882 1883 // draw the red plane 1884 vverts(vtx, vr); 1885 glColorMask(1,0,0,1); 1886 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1887 1888 // draw the green plane 1889 vverts(vtx, vg); 1890 glColorMask(0,1,0,1); 1891 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1892 1893 // draw the blue plane 1894 vverts(vtx, vb); 1895 glColorMask(0,0,1,1); 1896 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1897 1898 // draw the white highlight (we use the last vertices) 1899 glDisable(GL_TEXTURE_2D); 1900 glColorMask(1,1,1,1); 1901 glColor4f(vg, vg, vg, 1); 1902 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1903 hw.flip(screenBounds); 1904 } 1905 1906 h_stretch hverts(hw_w, hw_h); 1907 glDisable(GL_BLEND); 1908 glDisable(GL_TEXTURE_2D); 1909 glColorMask(1,1,1,1); 1910 for (int i=0 ; i<nbFrames ; i++) { 1911 const float v = itg(i); 1912 hverts(vtx, v); 1913 glClear(GL_COLOR_BUFFER_BIT); 1914 glColor4f(1-v, 1-v, 1-v, 1); 1915 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 1916 hw.flip(screenBounds); 1917 } 1918 1919 glColorMask(1,1,1,1); 1920 glEnable(GL_SCISSOR_TEST); 1921 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 1922 glDeleteTextures(1, &tname); 1923 return NO_ERROR; 1924} 1925 1926status_t SurfaceFlinger::electronBeamOnAnimationImplLocked() 1927{ 1928 status_t result = PERMISSION_DENIED; 1929 1930 if (!GLExtensions::getInstance().haveFramebufferObject()) 1931 return INVALID_OPERATION; 1932 1933 1934 // get screen geometry 1935 const DisplayHardware& hw(graphicPlane(0).displayHardware()); 1936 const uint32_t hw_w = hw.getWidth(); 1937 const uint32_t hw_h = hw.getHeight(); 1938 const Region screenBounds(hw.bounds()); 1939 1940 GLfloat u, v; 1941 GLuint tname; 1942 result = renderScreenToTextureLocked(0, &tname, &u, &v); 1943 if (result != NO_ERROR) { 1944 return result; 1945 } 1946 1947 // back to main framebuffer 1948 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 1949 glDisable(GL_SCISSOR_TEST); 1950 1951 GLfloat vtx[8]; 1952 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} }; 1953 glEnable(GL_TEXTURE_2D); 1954 glBindTexture(GL_TEXTURE_2D, tname); 1955 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 1956 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 1957 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 1958 glTexCoordPointer(2, GL_FLOAT, 0, texCoords); 1959 glEnableClientState(GL_TEXTURE_COORD_ARRAY); 1960 glVertexPointer(2, GL_FLOAT, 0, vtx); 1961 1962 class s_curve_interpolator { 1963 const float nbFrames, s, v; 1964 public: 1965 s_curve_interpolator(int nbFrames, float s) 1966 : nbFrames(1.0f / (nbFrames-1)), s(s), 1967 v(1.0f + expf(-s + 0.5f*s)) { 1968 } 1969 float operator()(int f) { 1970 const float x = f * nbFrames; 1971 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f; 1972 } 1973 }; 1974 1975 class v_stretch { 1976 const GLfloat hw_w, hw_h; 1977 public: 1978 v_stretch(uint32_t hw_w, uint32_t hw_h) 1979 : hw_w(hw_w), hw_h(hw_h) { 1980 } 1981 void operator()(GLfloat* vtx, float v) { 1982 const GLfloat w = hw_w + (hw_w * v); 1983 const GLfloat h = hw_h - (hw_h * v); 1984 const GLfloat x = (hw_w - w) * 0.5f; 1985 const GLfloat y = (hw_h - h) * 0.5f; 1986 vtx[0] = x; vtx[1] = y; 1987 vtx[2] = x; vtx[3] = y + h; 1988 vtx[4] = x + w; vtx[5] = y + h; 1989 vtx[6] = x + w; vtx[7] = y; 1990 } 1991 }; 1992 1993 class h_stretch { 1994 const GLfloat hw_w, hw_h; 1995 public: 1996 h_stretch(uint32_t hw_w, uint32_t hw_h) 1997 : hw_w(hw_w), hw_h(hw_h) { 1998 } 1999 void operator()(GLfloat* vtx, float v) { 2000 const GLfloat w = hw_w - (hw_w * v); 2001 const GLfloat h = 1.0f; 2002 const GLfloat x = (hw_w - w) * 0.5f; 2003 const GLfloat y = (hw_h - h) * 0.5f; 2004 vtx[0] = x; vtx[1] = y; 2005 vtx[2] = x; vtx[3] = y + h; 2006 vtx[4] = x + w; vtx[5] = y + h; 2007 vtx[6] = x + w; vtx[7] = y; 2008 } 2009 }; 2010 2011 // the full animation is 12 frames 2012 int nbFrames = 8; 2013 s_curve_interpolator itr(nbFrames, 7.5f); 2014 s_curve_interpolator itg(nbFrames, 8.0f); 2015 s_curve_interpolator itb(nbFrames, 8.5f); 2016 2017 h_stretch hverts(hw_w, hw_h); 2018 glDisable(GL_BLEND); 2019 glDisable(GL_TEXTURE_2D); 2020 glColorMask(1,1,1,1); 2021 for (int i=nbFrames-1 ; i>=0 ; i--) { 2022 const float v = itg(i); 2023 hverts(vtx, v); 2024 glClear(GL_COLOR_BUFFER_BIT); 2025 glColor4f(1-v, 1-v, 1-v, 1); 2026 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2027 hw.flip(screenBounds); 2028 } 2029 2030 nbFrames = 4; 2031 v_stretch vverts(hw_w, hw_h); 2032 glEnable(GL_BLEND); 2033 glBlendFunc(GL_ONE, GL_ONE); 2034 for (int i=nbFrames-1 ; i>=0 ; i--) { 2035 float x, y, w, h; 2036 const float vr = itr(i); 2037 const float vg = itg(i); 2038 const float vb = itb(i); 2039 2040 // clear screen 2041 glColorMask(1,1,1,1); 2042 glClear(GL_COLOR_BUFFER_BIT); 2043 glEnable(GL_TEXTURE_2D); 2044 2045 // draw the red plane 2046 vverts(vtx, vr); 2047 glColorMask(1,0,0,1); 2048 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2049 2050 // draw the green plane 2051 vverts(vtx, vg); 2052 glColorMask(0,1,0,1); 2053 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2054 2055 // draw the blue plane 2056 vverts(vtx, vb); 2057 glColorMask(0,0,1,1); 2058 glDrawArrays(GL_TRIANGLE_FAN, 0, 4); 2059 2060 hw.flip(screenBounds); 2061 } 2062 2063 glColorMask(1,1,1,1); 2064 glEnable(GL_SCISSOR_TEST); 2065 glDisableClientState(GL_TEXTURE_COORD_ARRAY); 2066 glDeleteTextures(1, &tname); 2067 2068 return NO_ERROR; 2069} 2070 2071// --------------------------------------------------------------------------- 2072 2073status_t SurfaceFlinger::turnElectronBeamOffImplLocked(int32_t mode) 2074{ 2075 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2076 if (!hw.canDraw()) { 2077 // we're already off 2078 return NO_ERROR; 2079 } 2080 if (mode & ISurfaceComposer::eElectronBeamAnimationOff) { 2081 electronBeamOffAnimationImplLocked(); 2082 } 2083 2084 // always clear the whole screen at the end of the animation 2085 glClearColor(0,0,0,1); 2086 glDisable(GL_SCISSOR_TEST); 2087 glClear(GL_COLOR_BUFFER_BIT); 2088 glEnable(GL_SCISSOR_TEST); 2089 hw.flip( Region(hw.bounds()) ); 2090 2091 hw.setCanDraw(false); 2092 return NO_ERROR; 2093} 2094 2095status_t SurfaceFlinger::turnElectronBeamOff(int32_t mode) 2096{ 2097 class MessageTurnElectronBeamOff : public MessageBase { 2098 SurfaceFlinger* flinger; 2099 int32_t mode; 2100 status_t result; 2101 public: 2102 MessageTurnElectronBeamOff(SurfaceFlinger* flinger, int32_t mode) 2103 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2104 } 2105 status_t getResult() const { 2106 return result; 2107 } 2108 virtual bool handler() { 2109 Mutex::Autolock _l(flinger->mStateLock); 2110 result = flinger->turnElectronBeamOffImplLocked(mode); 2111 return true; 2112 } 2113 }; 2114 2115 sp<MessageBase> msg = new MessageTurnElectronBeamOff(this, mode); 2116 status_t res = postMessageSync(msg); 2117 if (res == NO_ERROR) { 2118 res = static_cast<MessageTurnElectronBeamOff*>( msg.get() )->getResult(); 2119 2120 // work-around: when the power-manager calls us we activate the 2121 // animation. eventually, the "on" animation will be called 2122 // by the power-manager itself 2123 mElectronBeamAnimationMode = mode; 2124 } 2125 return res; 2126} 2127 2128// --------------------------------------------------------------------------- 2129 2130status_t SurfaceFlinger::turnElectronBeamOnImplLocked(int32_t mode) 2131{ 2132 DisplayHardware& hw(graphicPlane(0).editDisplayHardware()); 2133 if (hw.canDraw()) { 2134 // we're already on 2135 return NO_ERROR; 2136 } 2137 if (mode & ISurfaceComposer::eElectronBeamAnimationOn) { 2138 electronBeamOnAnimationImplLocked(); 2139 } 2140 hw.setCanDraw(true); 2141 2142 // make sure to redraw the whole screen when the animation is done 2143 mDirtyRegion.set(hw.bounds()); 2144 signalEvent(); 2145 2146 return NO_ERROR; 2147} 2148 2149status_t SurfaceFlinger::turnElectronBeamOn(int32_t mode) 2150{ 2151 class MessageTurnElectronBeamOn : public MessageBase { 2152 SurfaceFlinger* flinger; 2153 int32_t mode; 2154 status_t result; 2155 public: 2156 MessageTurnElectronBeamOn(SurfaceFlinger* flinger, int32_t mode) 2157 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) { 2158 } 2159 status_t getResult() const { 2160 return result; 2161 } 2162 virtual bool handler() { 2163 Mutex::Autolock _l(flinger->mStateLock); 2164 result = flinger->turnElectronBeamOnImplLocked(mode); 2165 return true; 2166 } 2167 }; 2168 2169 postMessageAsync( new MessageTurnElectronBeamOn(this, mode) ); 2170 return NO_ERROR; 2171} 2172 2173// --------------------------------------------------------------------------- 2174 2175status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy, 2176 sp<IMemoryHeap>* heap, 2177 uint32_t* w, uint32_t* h, PixelFormat* f, 2178 uint32_t sw, uint32_t sh, 2179 uint32_t minLayerZ, uint32_t maxLayerZ) 2180{ 2181 status_t result = PERMISSION_DENIED; 2182 2183 // only one display supported for now 2184 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2185 return BAD_VALUE; 2186 2187 // make sure none of the layers are protected 2188 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ); 2189 const size_t count = layers.size(); 2190 for (size_t i=0 ; i<count ; ++i) { 2191 const sp<LayerBase>& layer(layers[i]); 2192 const uint32_t z = layer->drawingState().z; 2193 if (z >= minLayerZ && z <= maxLayerZ) { 2194 if (layer->isProtected()) { 2195 return INVALID_OPERATION; 2196 } 2197 } 2198 } 2199 2200 if (!GLExtensions::getInstance().haveFramebufferObject()) 2201 return INVALID_OPERATION; 2202 2203 // get screen geometry 2204 const DisplayHardware& hw(graphicPlane(dpy).displayHardware()); 2205 const uint32_t hw_w = hw.getWidth(); 2206 const uint32_t hw_h = hw.getHeight(); 2207 2208 if ((sw > hw_w) || (sh > hw_h)) 2209 return BAD_VALUE; 2210 2211 sw = (!sw) ? hw_w : sw; 2212 sh = (!sh) ? hw_h : sh; 2213 const size_t size = sw * sh * 4; 2214 2215 //LOGD("screenshot: sw=%d, sh=%d, minZ=%d, maxZ=%d", 2216 // sw, sh, minLayerZ, maxLayerZ); 2217 2218 // make sure to clear all GL error flags 2219 while ( glGetError() != GL_NO_ERROR ) ; 2220 2221 // create a FBO 2222 GLuint name, tname; 2223 glGenRenderbuffersOES(1, &tname); 2224 glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname); 2225 glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh); 2226 glGenFramebuffersOES(1, &name); 2227 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name); 2228 glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, 2229 GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname); 2230 2231 GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES); 2232 2233 if (status == GL_FRAMEBUFFER_COMPLETE_OES) { 2234 2235 // invert everything, b/c glReadPixel() below will invert the FB 2236 glViewport(0, 0, sw, sh); 2237 glScissor(0, 0, sw, sh); 2238 glMatrixMode(GL_PROJECTION); 2239 glPushMatrix(); 2240 glLoadIdentity(); 2241 glOrthof(0, hw_w, 0, hw_h, 0, 1); 2242 glMatrixMode(GL_MODELVIEW); 2243 2244 // redraw the screen entirely... 2245 glClearColor(0,0,0,1); 2246 glClear(GL_COLOR_BUFFER_BIT); 2247 2248 for (size_t i=0 ; i<count ; ++i) { 2249 const sp<LayerBase>& layer(layers[i]); 2250 const uint32_t z = layer->drawingState().z; 2251 if (z >= minLayerZ && z <= maxLayerZ) { 2252 layer->drawForSreenShot(); 2253 } 2254 } 2255 2256 // XXX: this is needed on tegra 2257 glScissor(0, 0, sw, sh); 2258 2259 // check for errors and return screen capture 2260 if (glGetError() != GL_NO_ERROR) { 2261 // error while rendering 2262 result = INVALID_OPERATION; 2263 } else { 2264 // allocate shared memory large enough to hold the 2265 // screen capture 2266 sp<MemoryHeapBase> base( 2267 new MemoryHeapBase(size, 0, "screen-capture") ); 2268 void* const ptr = base->getBase(); 2269 if (ptr) { 2270 // capture the screen with glReadPixels() 2271 glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr); 2272 if (glGetError() == GL_NO_ERROR) { 2273 *heap = base; 2274 *w = sw; 2275 *h = sh; 2276 *f = PIXEL_FORMAT_RGBA_8888; 2277 result = NO_ERROR; 2278 } 2279 } else { 2280 result = NO_MEMORY; 2281 } 2282 } 2283 glEnable(GL_SCISSOR_TEST); 2284 glViewport(0, 0, hw_w, hw_h); 2285 glMatrixMode(GL_PROJECTION); 2286 glPopMatrix(); 2287 glMatrixMode(GL_MODELVIEW); 2288 } else { 2289 result = BAD_VALUE; 2290 } 2291 2292 // release FBO resources 2293 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0); 2294 glDeleteRenderbuffersOES(1, &tname); 2295 glDeleteFramebuffersOES(1, &name); 2296 2297 hw.compositionComplete(); 2298 2299 // LOGD("screenshot: result = %s", result<0 ? strerror(result) : "OK"); 2300 2301 return result; 2302} 2303 2304 2305status_t SurfaceFlinger::captureScreen(DisplayID dpy, 2306 sp<IMemoryHeap>* heap, 2307 uint32_t* width, uint32_t* height, PixelFormat* format, 2308 uint32_t sw, uint32_t sh, 2309 uint32_t minLayerZ, uint32_t maxLayerZ) 2310{ 2311 // only one display supported for now 2312 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT)) 2313 return BAD_VALUE; 2314 2315 if (!GLExtensions::getInstance().haveFramebufferObject()) 2316 return INVALID_OPERATION; 2317 2318 class MessageCaptureScreen : public MessageBase { 2319 SurfaceFlinger* flinger; 2320 DisplayID dpy; 2321 sp<IMemoryHeap>* heap; 2322 uint32_t* w; 2323 uint32_t* h; 2324 PixelFormat* f; 2325 uint32_t sw; 2326 uint32_t sh; 2327 uint32_t minLayerZ; 2328 uint32_t maxLayerZ; 2329 status_t result; 2330 public: 2331 MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy, 2332 sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f, 2333 uint32_t sw, uint32_t sh, 2334 uint32_t minLayerZ, uint32_t maxLayerZ) 2335 : flinger(flinger), dpy(dpy), 2336 heap(heap), w(w), h(h), f(f), sw(sw), sh(sh), 2337 minLayerZ(minLayerZ), maxLayerZ(maxLayerZ), 2338 result(PERMISSION_DENIED) 2339 { 2340 } 2341 status_t getResult() const { 2342 return result; 2343 } 2344 virtual bool handler() { 2345 Mutex::Autolock _l(flinger->mStateLock); 2346 2347 // if we have secure windows, never allow the screen capture 2348 if (flinger->mSecureFrameBuffer) 2349 return true; 2350 2351 result = flinger->captureScreenImplLocked(dpy, 2352 heap, w, h, f, sw, sh, minLayerZ, maxLayerZ); 2353 2354 return true; 2355 } 2356 }; 2357 2358 sp<MessageBase> msg = new MessageCaptureScreen(this, 2359 dpy, heap, width, height, format, sw, sh, minLayerZ, maxLayerZ); 2360 status_t res = postMessageSync(msg); 2361 if (res == NO_ERROR) { 2362 res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult(); 2363 } 2364 return res; 2365} 2366 2367// --------------------------------------------------------------------------- 2368 2369sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const 2370{ 2371 sp<Layer> result; 2372 Mutex::Autolock _l(mStateLock); 2373 result = mLayerMap.valueFor( sur->asBinder() ).promote(); 2374 return result; 2375} 2376 2377// --------------------------------------------------------------------------- 2378 2379Client::Client(const sp<SurfaceFlinger>& flinger) 2380 : mFlinger(flinger), mNameGenerator(1) 2381{ 2382} 2383 2384Client::~Client() 2385{ 2386 const size_t count = mLayers.size(); 2387 for (size_t i=0 ; i<count ; i++) { 2388 sp<LayerBaseClient> layer(mLayers.valueAt(i).promote()); 2389 if (layer != 0) { 2390 mFlinger->removeLayer(layer); 2391 } 2392 } 2393} 2394 2395status_t Client::initCheck() const { 2396 return NO_ERROR; 2397} 2398 2399size_t Client::attachLayer(const sp<LayerBaseClient>& layer) 2400{ 2401 Mutex::Autolock _l(mLock); 2402 size_t name = mNameGenerator++; 2403 mLayers.add(name, layer); 2404 return name; 2405} 2406 2407void Client::detachLayer(const LayerBaseClient* layer) 2408{ 2409 Mutex::Autolock _l(mLock); 2410 // we do a linear search here, because this doesn't happen often 2411 const size_t count = mLayers.size(); 2412 for (size_t i=0 ; i<count ; i++) { 2413 if (mLayers.valueAt(i) == layer) { 2414 mLayers.removeItemsAt(i, 1); 2415 break; 2416 } 2417 } 2418} 2419sp<LayerBaseClient> Client::getLayerUser(int32_t i) const 2420{ 2421 Mutex::Autolock _l(mLock); 2422 sp<LayerBaseClient> lbc; 2423 wp<LayerBaseClient> layer(mLayers.valueFor(i)); 2424 if (layer != 0) { 2425 lbc = layer.promote(); 2426 LOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i)); 2427 } 2428 return lbc; 2429} 2430 2431sp<IMemoryHeap> Client::getControlBlock() const { 2432 return 0; 2433} 2434ssize_t Client::getTokenForSurface(const sp<ISurface>& sur) const { 2435 return -1; 2436} 2437sp<ISurface> Client::createSurface( 2438 ISurfaceComposerClient::surface_data_t* params, 2439 const String8& name, 2440 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2441 uint32_t flags) 2442{ 2443 return mFlinger->createSurface(params, name, this, 2444 display, w, h, format, flags); 2445} 2446status_t Client::destroySurface(SurfaceID sid) { 2447 return mFlinger->removeSurface(this, sid); 2448} 2449status_t Client::setState(int32_t count, const layer_state_t* states) { 2450 return mFlinger->setClientState(this, count, states); 2451} 2452 2453// --------------------------------------------------------------------------- 2454 2455UserClient::UserClient(const sp<SurfaceFlinger>& flinger) 2456 : ctrlblk(0), mBitmap(0), mFlinger(flinger) 2457{ 2458 const int pgsize = getpagesize(); 2459 const int cblksize = ((sizeof(SharedClient)+(pgsize-1))&~(pgsize-1)); 2460 2461 mCblkHeap = new MemoryHeapBase(cblksize, 0, 2462 "SurfaceFlinger Client control-block"); 2463 2464 ctrlblk = static_cast<SharedClient *>(mCblkHeap->getBase()); 2465 if (ctrlblk) { // construct the shared structure in-place. 2466 new(ctrlblk) SharedClient; 2467 } 2468} 2469 2470UserClient::~UserClient() 2471{ 2472 if (ctrlblk) { 2473 ctrlblk->~SharedClient(); // destroy our shared-structure. 2474 } 2475 2476 /* 2477 * When a UserClient dies, it's unclear what to do exactly. 2478 * We could go ahead and destroy all surfaces linked to that client 2479 * however, it wouldn't be fair to the main Client 2480 * (usually the the window-manager), which might want to re-target 2481 * the layer to another UserClient. 2482 * I think the best is to do nothing, or not much; in most cases the 2483 * WM itself will go ahead and clean things up when it detects a client of 2484 * his has died. 2485 * The remaining question is what to display? currently we keep 2486 * just keep the current buffer. 2487 */ 2488} 2489 2490status_t UserClient::initCheck() const { 2491 return ctrlblk == 0 ? NO_INIT : NO_ERROR; 2492} 2493 2494void UserClient::detachLayer(const Layer* layer) 2495{ 2496 int32_t name = layer->getToken(); 2497 if (name >= 0) { 2498 int32_t mask = 1LU<<name; 2499 if ((android_atomic_and(~mask, &mBitmap) & mask) == 0) { 2500 LOGW("token %d wasn't marked as used %08x", name, int(mBitmap)); 2501 } 2502 } 2503} 2504 2505sp<IMemoryHeap> UserClient::getControlBlock() const { 2506 return mCblkHeap; 2507} 2508 2509ssize_t UserClient::getTokenForSurface(const sp<ISurface>& sur) const 2510{ 2511 int32_t name = NAME_NOT_FOUND; 2512 sp<Layer> layer(mFlinger->getLayer(sur)); 2513 if (layer == 0) { 2514 return name; 2515 } 2516 2517 // if this layer already has a token, just return it 2518 name = layer->getToken(); 2519 if ((name >= 0) && (layer->getClient() == this)) { 2520 return name; 2521 } 2522 2523 name = 0; 2524 do { 2525 int32_t mask = 1LU<<name; 2526 if ((android_atomic_or(mask, &mBitmap) & mask) == 0) { 2527 // we found and locked that name 2528 status_t err = layer->setToken( 2529 const_cast<UserClient*>(this), ctrlblk, name); 2530 if (err != NO_ERROR) { 2531 // free the name 2532 android_atomic_and(~mask, &mBitmap); 2533 name = err; 2534 } 2535 break; 2536 } 2537 if (++name >= int32_t(SharedBufferStack::NUM_LAYERS_MAX)) 2538 name = NO_MEMORY; 2539 } while(name >= 0); 2540 2541 //LOGD("getTokenForSurface(%p) => %d (client=%p, bitmap=%08lx)", 2542 // sur->asBinder().get(), name, this, mBitmap); 2543 return name; 2544} 2545 2546sp<ISurface> UserClient::createSurface( 2547 ISurfaceComposerClient::surface_data_t* params, 2548 const String8& name, 2549 DisplayID display, uint32_t w, uint32_t h, PixelFormat format, 2550 uint32_t flags) { 2551 return 0; 2552} 2553status_t UserClient::destroySurface(SurfaceID sid) { 2554 return INVALID_OPERATION; 2555} 2556status_t UserClient::setState(int32_t count, const layer_state_t* states) { 2557 return INVALID_OPERATION; 2558} 2559 2560// --------------------------------------------------------------------------- 2561 2562GraphicBufferAlloc::GraphicBufferAlloc() {} 2563 2564GraphicBufferAlloc::~GraphicBufferAlloc() {} 2565 2566sp<GraphicBuffer> GraphicBufferAlloc::createGraphicBuffer(uint32_t w, uint32_t h, 2567 PixelFormat format, uint32_t usage) { 2568 sp<GraphicBuffer> graphicBuffer(new GraphicBuffer(w, h, format, usage)); 2569 status_t err = graphicBuffer->initCheck(); 2570 if (err != 0) { 2571 LOGE("createGraphicBuffer: init check failed: %d", err); 2572 return 0; 2573 } else if (graphicBuffer->handle == 0) { 2574 LOGE("createGraphicBuffer: unable to create GraphicBuffer"); 2575 return 0; 2576 } 2577 return graphicBuffer; 2578} 2579 2580// --------------------------------------------------------------------------- 2581 2582GraphicPlane::GraphicPlane() 2583 : mHw(0) 2584{ 2585} 2586 2587GraphicPlane::~GraphicPlane() { 2588 delete mHw; 2589} 2590 2591bool GraphicPlane::initialized() const { 2592 return mHw ? true : false; 2593} 2594 2595int GraphicPlane::getWidth() const { 2596 return mWidth; 2597} 2598 2599int GraphicPlane::getHeight() const { 2600 return mHeight; 2601} 2602 2603void GraphicPlane::setDisplayHardware(DisplayHardware *hw) 2604{ 2605 mHw = hw; 2606 2607 // initialize the display orientation transform. 2608 // it's a constant that should come from the display driver. 2609 int displayOrientation = ISurfaceComposer::eOrientationDefault; 2610 char property[PROPERTY_VALUE_MAX]; 2611 if (property_get("ro.sf.hwrotation", property, NULL) > 0) { 2612 //displayOrientation 2613 switch (atoi(property)) { 2614 case 90: 2615 displayOrientation = ISurfaceComposer::eOrientation90; 2616 break; 2617 case 270: 2618 displayOrientation = ISurfaceComposer::eOrientation270; 2619 break; 2620 } 2621 } 2622 2623 const float w = hw->getWidth(); 2624 const float h = hw->getHeight(); 2625 GraphicPlane::orientationToTransfrom(displayOrientation, w, h, 2626 &mDisplayTransform); 2627 if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) { 2628 mDisplayWidth = h; 2629 mDisplayHeight = w; 2630 } else { 2631 mDisplayWidth = w; 2632 mDisplayHeight = h; 2633 } 2634 2635 setOrientation(ISurfaceComposer::eOrientationDefault); 2636} 2637 2638status_t GraphicPlane::orientationToTransfrom( 2639 int orientation, int w, int h, Transform* tr) 2640{ 2641 uint32_t flags = 0; 2642 switch (orientation) { 2643 case ISurfaceComposer::eOrientationDefault: 2644 flags = Transform::ROT_0; 2645 break; 2646 case ISurfaceComposer::eOrientation90: 2647 flags = Transform::ROT_90; 2648 break; 2649 case ISurfaceComposer::eOrientation180: 2650 flags = Transform::ROT_180; 2651 break; 2652 case ISurfaceComposer::eOrientation270: 2653 flags = Transform::ROT_270; 2654 break; 2655 default: 2656 return BAD_VALUE; 2657 } 2658 tr->set(flags, w, h); 2659 return NO_ERROR; 2660} 2661 2662status_t GraphicPlane::setOrientation(int orientation) 2663{ 2664 // If the rotation can be handled in hardware, this is where 2665 // the magic should happen. 2666 2667 const DisplayHardware& hw(displayHardware()); 2668 const float w = mDisplayWidth; 2669 const float h = mDisplayHeight; 2670 mWidth = int(w); 2671 mHeight = int(h); 2672 2673 Transform orientationTransform; 2674 GraphicPlane::orientationToTransfrom(orientation, w, h, 2675 &orientationTransform); 2676 if (orientation & ISurfaceComposer::eOrientationSwapMask) { 2677 mWidth = int(h); 2678 mHeight = int(w); 2679 } 2680 2681 mOrientation = orientation; 2682 mGlobalTransform = mDisplayTransform * orientationTransform; 2683 return NO_ERROR; 2684} 2685 2686const DisplayHardware& GraphicPlane::displayHardware() const { 2687 return *mHw; 2688} 2689 2690DisplayHardware& GraphicPlane::editDisplayHardware() { 2691 return *mHw; 2692} 2693 2694const Transform& GraphicPlane::transform() const { 2695 return mGlobalTransform; 2696} 2697 2698EGLDisplay GraphicPlane::getEGLDisplay() const { 2699 return mHw->getEGLDisplay(); 2700} 2701 2702// --------------------------------------------------------------------------- 2703 2704}; // namespace android 2705