2 * Copyright (C) 2007 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
25 #include <sys/types.h>
27 #include <sys/ioctl.h>
29 #include <cutils/log.h>
30 #include <cutils/properties.h>
32 #include <binder/IPCThreadState.h>
33 #include <binder/IServiceManager.h>
34 #include <binder/MemoryHeapBase.h>
36 #include <utils/String8.h>
37 #include <utils/String16.h>
38 #include <utils/StopWatch.h>
40 #include <ui/GraphicBufferAllocator.h>
41 #include <ui/GraphicLog.h>
42 #include <ui/PixelFormat.h>
44 #include <pixelflinger/pixelflinger.h>
48 #include "GLExtensions.h"
51 #include "SurfaceFlinger.h"
53 #include "DisplayHardware/DisplayHardware.h"
54 #include "DisplayHardware/HWComposer.h"
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
60 #define AID_GRAPHICS 1003
63 #define DISPLAY_COUNT 1
66 // ---------------------------------------------------------------------------
68 SurfaceFlinger::SurfaceFlinger()
69 : BnSurfaceComposer(), Thread(false),
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),
85 mFreezeDisplayTime(0),
89 mDebugInSwapBuffers(0),
90 mLastSwapBufferTime(0),
91 mDebugInTransaction(0),
92 mLastTransactionTime(0),
100 void SurfaceFlinger::init()
102 LOGI("SurfaceFlinger is starting");
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);
111 LOGI_IF(mDebugRegion, "showupdates enabled");
112 LOGI_IF(mDebugBackground, "showbackground enabled");
115 SurfaceFlinger::~SurfaceFlinger()
117 glDeleteTextures(1, &mWormholeTexName);
120 sp<IMemoryHeap> SurfaceFlinger::getCblk() const
125 sp<ISurfaceComposerClient> SurfaceFlinger::createConnection()
127 sp<ISurfaceComposerClient> bclient;
128 sp<Client> client(new Client(this));
129 status_t err = client->initCheck();
130 if (err == NO_ERROR) {
136 sp<ISurfaceComposerClient> SurfaceFlinger::createClientConnection()
138 sp<ISurfaceComposerClient> bclient;
139 sp<UserClient> client(new UserClient(this));
140 status_t err = client->initCheck();
141 if (err == NO_ERROR) {
147 sp<IGraphicBufferAlloc> SurfaceFlinger::createGraphicBufferAlloc()
149 sp<GraphicBufferAlloc> gba(new GraphicBufferAlloc());
153 const GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) const
155 LOGE_IF(uint32_t(dpy) >= DISPLAY_COUNT, "Invalid DisplayID %d", dpy);
156 const GraphicPlane& plane(mGraphicPlanes[dpy]);
160 GraphicPlane& SurfaceFlinger::graphicPlane(int dpy)
162 return const_cast<GraphicPlane&>(
163 const_cast<SurfaceFlinger const *>(this)->graphicPlane(dpy));
166 void SurfaceFlinger::bootFinished()
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");
175 void SurfaceFlinger::onFirstRef()
177 run("SurfaceFlinger", PRIORITY_URGENT_DISPLAY);
179 // Wait for the main thread to be done with its initialization
180 mReadyToRunBarrier.wait();
183 static inline uint16_t pack565(int r, int g, int b) {
184 return (r<<11)|(g<<5)|b;
187 status_t SurfaceFlinger::readyToRun()
189 LOGI( "SurfaceFlinger's main thread ready to run. "
190 "Initializing graphics H/W...");
192 // we only support one display currently
196 // initialize the main display
197 GraphicPlane& plane(graphicPlane(dpy));
198 DisplayHardware* const hw = new DisplayHardware(this, dpy);
199 plane.setDisplayHardware(hw);
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");
207 mServerCblk = static_cast<surface_flinger_cblk_t*>(mServerHeap->getBase());
208 LOGE_IF(mServerCblk==0, "can't get to shared control block's address");
210 new(mServerCblk) surface_flinger_cblk_t;
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
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();
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();
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();
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);
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);
257 glViewport(0, 0, w, h);
258 glMatrixMode(GL_PROJECTION);
260 glOrthof(0, w, h, 0, 0, 1);
262 mReadyToRunBarrier.open();
265 * We're now ready to accept clients...
268 // start boot animation
269 property_set("ctl.start", "bootanim");
274 // ----------------------------------------------------------------------------
277 #pragma mark Events Handler
280 void SurfaceFlinger::waitForEvent()
283 nsecs_t timeout = -1;
284 const nsecs_t freezeDisplayTimeout = ms2ns(5000);
285 if (UNLIKELY(isFrozen())) {
287 const nsecs_t now = systemTime();
288 if (mFreezeDisplayTime == 0) {
289 mFreezeDisplayTime = now;
291 nsecs_t waitTime = freezeDisplayTimeout - (now - mFreezeDisplayTime);
292 timeout = waitTime>0 ? waitTime : 0;
295 sp<MessageBase> msg = mEventQueue.waitMessage(timeout);
297 // see if we timed out
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;
307 mFreezeDisplay = false;
313 case MessageQueue::INVALIDATE:
314 // invalidate message, just return to the main loop
321 void SurfaceFlinger::signalEvent() {
322 mEventQueue.invalidate();
325 void SurfaceFlinger::signal() const {
326 // this is the IPC call
327 const_cast<SurfaceFlinger*>(this)->signalEvent();
330 status_t SurfaceFlinger::postMessageAsync(const sp<MessageBase>& msg,
331 nsecs_t reltime, uint32_t flags)
333 return mEventQueue.postMessage(msg, reltime, flags);
336 status_t SurfaceFlinger::postMessageSync(const sp<MessageBase>& msg,
337 nsecs_t reltime, uint32_t flags)
339 status_t res = mEventQueue.postMessage(msg, reltime, flags);
340 if (res == NO_ERROR) {
346 // ----------------------------------------------------------------------------
349 #pragma mark Main loop
352 bool SurfaceFlinger::threadLoop()
356 // check for transactions
357 if (UNLIKELY(mConsoleSignals)) {
358 handleConsoleEvents();
361 if (LIKELY(mTransactionCount == 0)) {
362 // if we're in a global transaction, don't do anything.
363 const uint32_t mask = eTransactionNeeded | eTraversalNeeded;
364 uint32_t transactionFlags = getTransactionFlags(mask);
365 if (LIKELY(transactionFlags)) {
366 handleTransaction(transactionFlags);
370 // post surfaces (if needed)
373 if (UNLIKELY(mHwWorkListDirty)) {
374 // build the h/w work list
378 const DisplayHardware& hw(graphicPlane(0).displayHardware());
379 if (LIKELY(hw.canDraw() && !isFrozen())) {
380 // repaint the framebuffer (if needed)
382 const int index = hw.getCurrentBufferIndex();
383 GraphicLog& logger(GraphicLog::getInstance());
385 logger.log(GraphicLog::SF_REPAINT, index);
388 // inform the h/w that we're done compositing
389 logger.log(GraphicLog::SF_COMPOSITION_COMPLETE, index);
390 hw.compositionComplete();
392 logger.log(GraphicLog::SF_SWAP_BUFFERS, index);
395 logger.log(GraphicLog::SF_REPAINT_DONE, index);
397 // pretend we did the post
398 hw.compositionComplete();
399 usleep(16667); // 60 fps period
404 void SurfaceFlinger::postFramebuffer()
406 if (!mInvalidRegion.isEmpty()) {
407 const DisplayHardware& hw(graphicPlane(0).displayHardware());
408 const nsecs_t now = systemTime();
409 mDebugInSwapBuffers = now;
410 hw.flip(mInvalidRegion);
411 mLastSwapBufferTime = systemTime() - now;
412 mDebugInSwapBuffers = 0;
413 mInvalidRegion.clear();
417 void SurfaceFlinger::handleConsoleEvents()
419 // something to do with the console
420 const DisplayHardware& hw = graphicPlane(0).displayHardware();
422 int what = android_atomic_and(0, &mConsoleSignals);
423 if (what & eConsoleAcquired) {
425 // this is a temporary work-around, eventually this should be called
426 // by the power-manager
427 SurfaceFlinger::turnElectronBeamOn(mElectronBeamAnimationMode);
430 if (mDeferReleaseConsole && hw.isScreenAcquired()) {
431 // We got the release signal before the acquire signal
432 mDeferReleaseConsole = false;
436 if (what & eConsoleReleased) {
437 if (hw.isScreenAcquired()) {
440 mDeferReleaseConsole = true;
444 mDirtyRegion.set(hw.bounds());
447 void SurfaceFlinger::handleTransaction(uint32_t transactionFlags)
449 Vector< sp<LayerBase> > ditchedLayers;
452 * Perform and commit the transaction
455 { // scope for the lock
456 Mutex::Autolock _l(mStateLock);
457 const nsecs_t now = systemTime();
458 mDebugInTransaction = now;
459 handleTransactionLocked(transactionFlags, ditchedLayers);
460 mLastTransactionTime = systemTime() - now;
461 mDebugInTransaction = 0;
462 invalidateHwcGeometry();
463 // here the transaction has been committed
467 * Clean-up all layers that went away
468 * (do this without the lock held)
471 const size_t count = ditchedLayers.size();
472 for (size_t i=0 ; i<count ; i++) {
473 if (ditchedLayers[i] != 0) {
474 //LOGD("ditching layer %p", ditchedLayers[i].get());
475 ditchedLayers[i]->ditch();
480 void SurfaceFlinger::handleTransactionLocked(
481 uint32_t transactionFlags, Vector< sp<LayerBase> >& ditchedLayers)
483 const LayerVector& currentLayers(mCurrentState.layersSortedByZ);
484 const size_t count = currentLayers.size();
487 * Traversal of the children
488 * (perform the transaction for each of them if needed)
491 const bool layersNeedTransaction = transactionFlags & eTraversalNeeded;
492 if (layersNeedTransaction) {
493 for (size_t i=0 ; i<count ; i++) {
494 const sp<LayerBase>& layer = currentLayers[i];
495 uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded);
496 if (!trFlags) continue;
498 const uint32_t flags = layer->doTransaction(0);
499 if (flags & Layer::eVisibleRegion)
500 mVisibleRegionsDirty = true;
505 * Perform our own transaction if needed
508 if (transactionFlags & eTransactionNeeded) {
509 if (mCurrentState.orientation != mDrawingState.orientation) {
510 // the orientation has changed, recompute all visible regions
511 // and invalidate everything.
514 const int orientation = mCurrentState.orientation;
515 const uint32_t type = mCurrentState.orientationType;
516 GraphicPlane& plane(graphicPlane(dpy));
517 plane.setOrientation(orientation);
519 // update the shared control block
520 const DisplayHardware& hw(plane.displayHardware());
521 volatile display_cblk_t* dcblk = mServerCblk->displays + dpy;
522 dcblk->orientation = orientation;
523 dcblk->w = plane.getWidth();
524 dcblk->h = plane.getHeight();
526 mVisibleRegionsDirty = true;
527 mDirtyRegion.set(hw.bounds());
530 if (mCurrentState.freezeDisplay != mDrawingState.freezeDisplay) {
531 // freezing or unfreezing the display -> trigger animation if needed
532 mFreezeDisplay = mCurrentState.freezeDisplay;
534 mFreezeDisplayTime = 0;
537 if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) {
538 // layers have been added
539 mVisibleRegionsDirty = true;
542 // some layers might have been removed, so
543 // we need to update the regions they're exposing.
544 if (mLayersRemoved) {
545 mLayersRemoved = false;
546 mVisibleRegionsDirty = true;
547 const LayerVector& previousLayers(mDrawingState.layersSortedByZ);
548 const size_t count = previousLayers.size();
549 for (size_t i=0 ; i<count ; i++) {
550 const sp<LayerBase>& layer(previousLayers[i]);
551 if (currentLayers.indexOf( layer ) < 0) {
552 // this layer is not visible anymore
553 ditchedLayers.add(layer);
554 mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen);
563 sp<FreezeLock> SurfaceFlinger::getFreezeLock() const
565 return new FreezeLock(const_cast<SurfaceFlinger *>(this));
568 void SurfaceFlinger::computeVisibleRegions(
569 LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion)
571 const GraphicPlane& plane(graphicPlane(0));
572 const Transform& planeTransform(plane.transform());
573 const DisplayHardware& hw(plane.displayHardware());
574 const Region screenRegion(hw.bounds());
576 Region aboveOpaqueLayers;
577 Region aboveCoveredLayers;
580 bool secureFrameBuffer = false;
582 size_t i = currentLayers.size();
584 const sp<LayerBase>& layer = currentLayers[i];
585 layer->validateVisibility(planeTransform);
587 // start with the whole surface at its current location
588 const Layer::State& s(layer->drawingState());
591 * opaqueRegion: area of a surface that is fully opaque.
596 * visibleRegion: area of a surface that is visible on screen
597 * and not fully transparent. This is essentially the layer's
598 * footprint minus the opaque regions above it.
599 * Areas covered by a translucent surface are considered visible.
601 Region visibleRegion;
604 * coveredRegion: area of a surface that is covered by all
605 * visible regions above it (which includes the translucent areas).
607 Region coveredRegion;
610 // handle hidden surfaces by setting the visible region to empty
611 if (LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) {
612 const bool translucent = layer->needsBlending();
613 const Rect bounds(layer->visibleBounds());
614 visibleRegion.set(bounds);
615 visibleRegion.andSelf(screenRegion);
616 if (!visibleRegion.isEmpty()) {
617 // Remove the transparent area from the visible region
619 visibleRegion.subtractSelf(layer->transparentRegionScreen);
622 // compute the opaque region
623 const int32_t layerOrientation = layer->getOrientation();
624 if (s.alpha==255 && !translucent &&
625 ((layerOrientation & Transform::ROT_INVALID) == false)) {
626 // the opaque region is the layer's footprint
627 opaqueRegion = visibleRegion;
632 // Clip the covered region to the visible region
633 coveredRegion = aboveCoveredLayers.intersect(visibleRegion);
635 // Update aboveCoveredLayers for next (lower) layer
636 aboveCoveredLayers.orSelf(visibleRegion);
638 // subtract the opaque region covered by the layers above us
639 visibleRegion.subtractSelf(aboveOpaqueLayers);
641 // compute this layer's dirty region
642 if (layer->contentDirty) {
643 // we need to invalidate the whole region
644 dirty = visibleRegion;
645 // as well, as the old visible region
646 dirty.orSelf(layer->visibleRegionScreen);
647 layer->contentDirty = false;
649 /* compute the exposed region:
650 * the exposed region consists of two components:
651 * 1) what's VISIBLE now and was COVERED before
652 * 2) what's EXPOSED now less what was EXPOSED before
654 * note that (1) is conservative, we start with the whole
655 * visible region but only keep what used to be covered by
656 * something -- which mean it may have been exposed.
658 * (2) handles areas that were not covered by anything but got
659 * exposed because of a resize.
661 const Region newExposed = visibleRegion - coveredRegion;
662 const Region oldVisibleRegion = layer->visibleRegionScreen;
663 const Region oldCoveredRegion = layer->coveredRegionScreen;
664 const Region oldExposed = oldVisibleRegion - oldCoveredRegion;
665 dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed);
667 dirty.subtractSelf(aboveOpaqueLayers);
669 // accumulate to the screen dirty region
670 dirtyRegion.orSelf(dirty);
672 // Update aboveOpaqueLayers for next (lower) layer
673 aboveOpaqueLayers.orSelf(opaqueRegion);
675 // Store the visible region is screen space
676 layer->setVisibleRegion(visibleRegion);
677 layer->setCoveredRegion(coveredRegion);
679 // If a secure layer is partially visible, lock-down the screen!
680 if (layer->isSecure() && !visibleRegion.isEmpty()) {
681 secureFrameBuffer = true;
685 // invalidate the areas where a layer was removed
686 dirtyRegion.orSelf(mDirtyRegionRemovedLayer);
687 mDirtyRegionRemovedLayer.clear();
689 mSecureFrameBuffer = secureFrameBuffer;
690 opaqueRegion = aboveOpaqueLayers;
694 void SurfaceFlinger::commitTransaction()
696 mDrawingState = mCurrentState;
697 mResizeTransationPending = false;
698 mTransactionCV.broadcast();
701 void SurfaceFlinger::handlePageFlip()
703 bool visibleRegions = mVisibleRegionsDirty;
704 LayerVector& currentLayers(
705 const_cast<LayerVector&>(mDrawingState.layersSortedByZ));
706 visibleRegions |= lockPageFlip(currentLayers);
708 const DisplayHardware& hw = graphicPlane(0).displayHardware();
709 const Region screenRegion(hw.bounds());
710 if (visibleRegions) {
712 computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion);
715 * rebuild the visible layer list
717 mVisibleLayersSortedByZ.clear();
718 const LayerVector& currentLayers(mDrawingState.layersSortedByZ);
719 size_t count = currentLayers.size();
720 mVisibleLayersSortedByZ.setCapacity(count);
721 for (size_t i=0 ; i<count ; i++) {
722 if (!currentLayers[i]->visibleRegionScreen.isEmpty())
723 mVisibleLayersSortedByZ.add(currentLayers[i]);
726 mWormholeRegion = screenRegion.subtract(opaqueRegion);
727 mVisibleRegionsDirty = false;
728 invalidateHwcGeometry();
731 unlockPageFlip(currentLayers);
732 mDirtyRegion.andSelf(screenRegion);
735 void SurfaceFlinger::invalidateHwcGeometry()
737 mHwWorkListDirty = true;
740 bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers)
742 bool recomputeVisibleRegions = false;
743 size_t count = currentLayers.size();
744 sp<LayerBase> const* layers = currentLayers.array();
745 for (size_t i=0 ; i<count ; i++) {
746 const sp<LayerBase>& layer(layers[i]);
747 layer->lockPageFlip(recomputeVisibleRegions);
749 return recomputeVisibleRegions;
752 void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers)
754 const GraphicPlane& plane(graphicPlane(0));
755 const Transform& planeTransform(plane.transform());
756 size_t count = currentLayers.size();
757 sp<LayerBase> const* layers = currentLayers.array();
758 for (size_t i=0 ; i<count ; i++) {
759 const sp<LayerBase>& layer(layers[i]);
760 layer->unlockPageFlip(planeTransform, mDirtyRegion);
764 void SurfaceFlinger::handleWorkList()
766 mHwWorkListDirty = false;
767 HWComposer& hwc(graphicPlane(0).displayHardware().getHwComposer());
768 if (hwc.initCheck() == NO_ERROR) {
769 const Vector< sp<LayerBase> >& currentLayers(mVisibleLayersSortedByZ);
770 const size_t count = currentLayers.size();
771 hwc.createWorkList(count);
772 hwc_layer_t* const cur(hwc.getLayers());
773 for (size_t i=0 ; cur && i<count ; i++) {
774 currentLayers[i]->setGeometry(&cur[i]);
775 if (mDebugDisableHWC) {
776 cur[i].compositionType = HWC_FRAMEBUFFER;
777 cur[i].flags |= HWC_SKIP_LAYER;
783 void SurfaceFlinger::handleRepaint()
785 // compute the invalid region
786 mInvalidRegion.orSelf(mDirtyRegion);
788 if (UNLIKELY(mDebugRegion)) {
792 // set the frame buffer
793 const DisplayHardware& hw(graphicPlane(0).displayHardware());
794 glMatrixMode(GL_MODELVIEW);
797 uint32_t flags = hw.getFlags();
798 if ((flags & DisplayHardware::SWAP_RECTANGLE) ||
799 (flags & DisplayHardware::BUFFER_PRESERVED))
801 // we can redraw only what's dirty, but since SWAP_RECTANGLE only
802 // takes a rectangle, we must make sure to update that whole
803 // rectangle in that case
804 if (flags & DisplayHardware::SWAP_RECTANGLE) {
805 // TODO: we really should be able to pass a region to
806 // SWAP_RECTANGLE so that we don't have to redraw all this.
807 mDirtyRegion.set(mInvalidRegion.bounds());
809 // in the BUFFER_PRESERVED case, obviously, we can update only
810 // what's needed and nothing more.
811 // NOTE: this is NOT a common case, as preserving the backbuffer
812 // is costly and usually involves copying the whole update back.
815 if (flags & DisplayHardware::PARTIAL_UPDATES) {
816 // We need to redraw the rectangle that will be updated
817 // (pushed to the framebuffer).
818 // This is needed because PARTIAL_UPDATES only takes one
819 // rectangle instead of a region (see DisplayHardware::flip())
820 mDirtyRegion.set(mInvalidRegion.bounds());
822 // we need to redraw everything (the whole screen)
823 mDirtyRegion.set(hw.bounds());
824 mInvalidRegion = mDirtyRegion;
828 // compose all surfaces
829 composeSurfaces(mDirtyRegion);
831 // clear the dirty regions
832 mDirtyRegion.clear();
835 void SurfaceFlinger::composeSurfaces(const Region& dirty)
837 if (UNLIKELY(!mWormholeRegion.isEmpty())) {
838 // should never happen unless the window manager has a bug
843 status_t err = NO_ERROR;
844 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ);
845 size_t count = layers.size();
847 const DisplayHardware& hw(graphicPlane(0).displayHardware());
848 HWComposer& hwc(hw.getHwComposer());
849 hwc_layer_t* const cur(hwc.getLayers());
851 LOGE_IF(cur && hwc.getNumLayers() != count,
852 "HAL number of layers (%d) doesn't match surfaceflinger (%d)",
853 hwc.getNumLayers(), count);
855 // just to be extra-safe, use the smallest count
856 if (hwc.initCheck() == NO_ERROR) {
857 count = count < hwc.getNumLayers() ? count : hwc.getNumLayers();
861 * update the per-frame h/w composer data for each layer
862 * and build the transparent region of the FB
866 for (size_t i=0 ; i<count ; i++) {
867 const sp<LayerBase>& layer(layers[i]);
868 layer->setPerFrameData(&cur[i]);
871 LOGE_IF(err, "HWComposer::prepare failed (%s)", strerror(-err));
873 if (err == NO_ERROR) {
874 for (size_t i=0 ; i<count ; i++) {
875 if (cur[i].hints & HWC_HINT_CLEAR_FB) {
876 const sp<LayerBase>& layer(layers[i]);
877 if (!(layer->needsBlending())) {
878 transparent.orSelf(layer->visibleRegionScreen);
884 * clear the area of the FB that need to be transparent
886 transparent.andSelf(dirty);
887 if (!transparent.isEmpty()) {
888 glClearColor(0,0,0,0);
889 Region::const_iterator it = transparent.begin();
890 Region::const_iterator const end = transparent.end();
891 const int32_t height = hw.getHeight();
893 const Rect& r(*it++);
894 const GLint sy = height - (r.top + r.height());
895 glScissor(r.left, sy, r.width(), r.height());
896 glClear(GL_COLOR_BUFFER_BIT);
904 * and then, render the layers targeted at the framebuffer
906 for (size_t i=0 ; i<count ; i++) {
908 if ((cur[i].compositionType != HWC_FRAMEBUFFER) &&
909 !(cur[i].flags & HWC_SKIP_LAYER)) {
910 // skip layers handled by the HAL
915 const sp<LayerBase>& layer(layers[i]);
916 const Region clip(dirty.intersect(layer->visibleRegionScreen));
917 if (!clip.isEmpty()) {
923 void SurfaceFlinger::debugFlashRegions()
925 const DisplayHardware& hw(graphicPlane(0).displayHardware());
926 const uint32_t flags = hw.getFlags();
928 if (!((flags & DisplayHardware::SWAP_RECTANGLE) ||
929 (flags & DisplayHardware::BUFFER_PRESERVED))) {
930 const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ?
931 mDirtyRegion.bounds() : hw.bounds());
932 composeSurfaces(repaint);
935 TextureManager::deactivateTextures();
938 glDisable(GL_DITHER);
939 glDisable(GL_SCISSOR_TEST);
941 static int toggle = 0;
944 glColor4f(1, 0, 1, 1);
946 glColor4f(1, 1, 0, 1);
949 Region::const_iterator it = mDirtyRegion.begin();
950 Region::const_iterator const end = mDirtyRegion.end();
952 const Rect& r = *it++;
953 GLfloat vertices[][2] = {
955 { r.left, r.bottom },
956 { r.right, r.bottom },
959 glVertexPointer(2, GL_FLOAT, 0, vertices);
960 glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
963 if (mInvalidRegion.isEmpty()) {
964 mDirtyRegion.dump("mDirtyRegion");
965 mInvalidRegion.dump("mInvalidRegion");
967 hw.flip(mInvalidRegion);
969 if (mDebugRegion > 1)
970 usleep(mDebugRegion * 1000);
972 glEnable(GL_SCISSOR_TEST);
973 //mDirtyRegion.dump("mDirtyRegion");
976 void SurfaceFlinger::drawWormhole() const
978 const Region region(mWormholeRegion.intersect(mDirtyRegion));
979 if (region.isEmpty())
982 const DisplayHardware& hw(graphicPlane(0).displayHardware());
983 const int32_t width = hw.getWidth();
984 const int32_t height = hw.getHeight();
987 glDisable(GL_DITHER);
989 if (LIKELY(!mDebugBackground)) {
990 glClearColor(0,0,0,0);
991 Region::const_iterator it = region.begin();
992 Region::const_iterator const end = region.end();
994 const Rect& r = *it++;
995 const GLint sy = height - (r.top + r.height());
996 glScissor(r.left, sy, r.width(), r.height());
997 glClear(GL_COLOR_BUFFER_BIT);
1000 const GLshort vertices[][2] = { { 0, 0 }, { width, 0 },
1001 { width, height }, { 0, height } };
1002 const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } };
1003 glVertexPointer(2, GL_SHORT, 0, vertices);
1004 glTexCoordPointer(2, GL_SHORT, 0, tcoords);
1005 glEnableClientState(GL_TEXTURE_COORD_ARRAY);
1006 #if defined(GL_OES_EGL_image_external)
1007 if (GLExtensions::getInstance().haveTextureExternal()) {
1008 glDisable(GL_TEXTURE_EXTERNAL_OES);
1011 glEnable(GL_TEXTURE_2D);
1012 glBindTexture(GL_TEXTURE_2D, mWormholeTexName);
1013 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
1014 glMatrixMode(GL_TEXTURE);
1016 glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1);
1017 Region::const_iterator it = region.begin();
1018 Region::const_iterator const end = region.end();
1020 const Rect& r = *it++;
1021 const GLint sy = height - (r.top + r.height());
1022 glScissor(r.left, sy, r.width(), r.height());
1023 glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
1025 glDisableClientState(GL_TEXTURE_COORD_ARRAY);
1027 glMatrixMode(GL_MODELVIEW);
1031 void SurfaceFlinger::debugShowFPS() const
1033 static int mFrameCount;
1034 static int mLastFrameCount = 0;
1035 static nsecs_t mLastFpsTime = 0;
1036 static float mFps = 0;
1038 nsecs_t now = systemTime();
1039 nsecs_t diff = now - mLastFpsTime;
1040 if (diff > ms2ns(250)) {
1041 mFps = ((mFrameCount - mLastFrameCount) * float(s2ns(1))) / diff;
1043 mLastFrameCount = mFrameCount;
1045 // XXX: mFPS has the value we want
1048 status_t SurfaceFlinger::addLayer(const sp<LayerBase>& layer)
1050 Mutex::Autolock _l(mStateLock);
1052 setTransactionFlags(eTransactionNeeded|eTraversalNeeded);
1056 status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer)
1058 ssize_t i = mCurrentState.layersSortedByZ.add(layer);
1059 return (i < 0) ? status_t(i) : status_t(NO_ERROR);
1062 ssize_t SurfaceFlinger::addClientLayer(const sp<Client>& client,
1063 const sp<LayerBaseClient>& lbc)
1065 Mutex::Autolock _l(mStateLock);
1067 // attach this layer to the client
1068 ssize_t name = client->attachLayer(lbc);
1070 // add this layer to the current state list
1076 status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer)
1078 Mutex::Autolock _l(mStateLock);
1079 status_t err = purgatorizeLayer_l(layer);
1080 if (err == NO_ERROR)
1081 setTransactionFlags(eTransactionNeeded);
1085 status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase)
1087 sp<LayerBaseClient> lbc(layerBase->getLayerBaseClient());
1089 mLayerMap.removeItem( lbc->getSurfaceBinder() );
1091 ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase);
1093 mLayersRemoved = true;
1096 return status_t(index);
1099 status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase)
1101 // First add the layer to the purgatory list, which makes sure it won't
1102 // go away, then remove it from the main list (through a transaction).
1103 ssize_t err = removeLayer_l(layerBase);
1105 mLayerPurgatory.add(layerBase);
1108 layerBase->onRemoved();
1110 // it's possible that we don't find a layer, because it might
1111 // have been destroyed already -- this is not technically an error
1112 // from the user because there is a race between Client::destroySurface(),
1113 // ~Client() and ~ISurface().
1114 return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err;
1117 status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer)
1119 layer->forceVisibilityTransaction();
1120 setTransactionFlags(eTraversalNeeded);
1124 uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags)
1126 return android_atomic_and(~flags, &mTransactionFlags) & flags;
1129 uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags)
1131 uint32_t old = android_atomic_or(flags, &mTransactionFlags);
1132 if ((old & flags)==0) { // wake the server up
1138 void SurfaceFlinger::openGlobalTransaction()
1140 android_atomic_inc(&mTransactionCount);
1143 void SurfaceFlinger::closeGlobalTransaction()
1145 if (android_atomic_dec(&mTransactionCount) == 1) {
1148 // if there is a transaction with a resize, wait for it to
1149 // take effect before returning.
1150 Mutex::Autolock _l(mStateLock);
1151 while (mResizeTransationPending) {
1152 status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5));
1153 if (CC_UNLIKELY(err != NO_ERROR)) {
1154 // just in case something goes wrong in SF, return to the
1155 // called after a few seconds.
1156 LOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!");
1157 mResizeTransationPending = false;
1164 status_t SurfaceFlinger::freezeDisplay(DisplayID dpy, uint32_t flags)
1166 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT))
1169 Mutex::Autolock _l(mStateLock);
1170 mCurrentState.freezeDisplay = 1;
1171 setTransactionFlags(eTransactionNeeded);
1173 // flags is intended to communicate some sort of animation behavior
1174 // (for instance fading)
1178 status_t SurfaceFlinger::unfreezeDisplay(DisplayID dpy, uint32_t flags)
1180 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT))
1183 Mutex::Autolock _l(mStateLock);
1184 mCurrentState.freezeDisplay = 0;
1185 setTransactionFlags(eTransactionNeeded);
1187 // flags is intended to communicate some sort of animation behavior
1188 // (for instance fading)
1192 int SurfaceFlinger::setOrientation(DisplayID dpy,
1193 int orientation, uint32_t flags)
1195 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT))
1198 Mutex::Autolock _l(mStateLock);
1199 if (mCurrentState.orientation != orientation) {
1200 if (uint32_t(orientation)<=eOrientation270 || orientation==42) {
1201 mCurrentState.orientationType = flags;
1202 mCurrentState.orientation = orientation;
1203 setTransactionFlags(eTransactionNeeded);
1204 mTransactionCV.wait(mStateLock);
1206 orientation = BAD_VALUE;
1212 sp<ISurface> SurfaceFlinger::createSurface(const sp<Client>& client, int pid,
1213 const String8& name, ISurfaceComposerClient::surface_data_t* params,
1214 DisplayID d, uint32_t w, uint32_t h, PixelFormat format,
1217 sp<LayerBaseClient> layer;
1218 sp<LayerBaseClient::Surface> surfaceHandle;
1220 if (int32_t(w|h) < 0) {
1221 LOGE("createSurface() failed, w or h is negative (w=%d, h=%d)",
1223 return surfaceHandle;
1226 //LOGD("createSurface for pid %d (%d x %d)", pid, w, h);
1227 sp<Layer> normalLayer;
1228 switch (flags & eFXSurfaceMask) {
1229 case eFXSurfaceNormal:
1230 normalLayer = createNormalSurface(client, d, w, h, flags, format);
1231 layer = normalLayer;
1233 case eFXSurfaceBlur:
1234 // for now we treat Blur as Dim, until we can implement it
1237 layer = createDimSurface(client, d, w, h, flags);
1242 layer->initStates(w, h, flags);
1243 layer->setName(name);
1244 ssize_t token = addClientLayer(client, layer);
1246 surfaceHandle = layer->getSurface();
1247 if (surfaceHandle != 0) {
1248 params->token = token;
1249 params->identity = surfaceHandle->getIdentity();
1252 params->format = format;
1253 if (normalLayer != 0) {
1254 Mutex::Autolock _l(mStateLock);
1255 mLayerMap.add(surfaceHandle->asBinder(), normalLayer);
1259 setTransactionFlags(eTransactionNeeded);
1262 return surfaceHandle;
1265 sp<Layer> SurfaceFlinger::createNormalSurface(
1266 const sp<Client>& client, DisplayID display,
1267 uint32_t w, uint32_t h, uint32_t flags,
1268 PixelFormat& format)
1270 // initialize the surfaces
1271 switch (format) { // TODO: take h/w into account
1272 case PIXEL_FORMAT_TRANSPARENT:
1273 case PIXEL_FORMAT_TRANSLUCENT:
1274 format = PIXEL_FORMAT_RGBA_8888;
1276 case PIXEL_FORMAT_OPAQUE:
1278 format = PIXEL_FORMAT_RGB_565;
1280 format = PIXEL_FORMAT_RGBX_8888;
1286 if (format == PIXEL_FORMAT_RGBX_8888)
1287 format = PIXEL_FORMAT_RGBA_8888;
1290 sp<Layer> layer = new Layer(this, display, client);
1291 status_t err = layer->setBuffers(w, h, format, flags);
1292 if (LIKELY(err != NO_ERROR)) {
1293 LOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err));
1299 sp<LayerDim> SurfaceFlinger::createDimSurface(
1300 const sp<Client>& client, DisplayID display,
1301 uint32_t w, uint32_t h, uint32_t flags)
1303 sp<LayerDim> layer = new LayerDim(this, display, client);
1304 layer->initStates(w, h, flags);
1308 status_t SurfaceFlinger::removeSurface(const sp<Client>& client, SurfaceID sid)
1311 * called by the window manager, when a surface should be marked for
1314 * The surface is removed from the current and drawing lists, but placed
1315 * in the purgatory queue, so it's not destroyed right-away (we need
1316 * to wait for all client's references to go away first).
1319 status_t err = NAME_NOT_FOUND;
1320 Mutex::Autolock _l(mStateLock);
1321 sp<LayerBaseClient> layer = client->getLayerUser(sid);
1323 err = purgatorizeLayer_l(layer);
1324 if (err == NO_ERROR) {
1325 setTransactionFlags(eTransactionNeeded);
1331 status_t SurfaceFlinger::destroySurface(const sp<LayerBaseClient>& layer)
1333 // called by ~ISurface() when all references are gone
1335 class MessageDestroySurface : public MessageBase {
1336 SurfaceFlinger* flinger;
1337 sp<LayerBaseClient> layer;
1339 MessageDestroySurface(
1340 SurfaceFlinger* flinger, const sp<LayerBaseClient>& layer)
1341 : flinger(flinger), layer(layer) { }
1342 virtual bool handler() {
1343 sp<LayerBaseClient> l(layer);
1344 layer.clear(); // clear it outside of the lock;
1345 Mutex::Autolock _l(flinger->mStateLock);
1347 * remove the layer from the current list -- chances are that it's
1348 * not in the list anyway, because it should have been removed
1349 * already upon request of the client (eg: window manager).
1350 * However, a buggy client could have not done that.
1351 * Since we know we don't have any more clients, we don't need
1352 * to use the purgatory.
1354 status_t err = flinger->removeLayer_l(l);
1355 if (err == NAME_NOT_FOUND) {
1356 // The surface wasn't in the current list, which means it was
1357 // removed already, which means it is in the purgatory,
1358 // and need to be removed from there.
1359 // This needs to happen from the main thread since its dtor
1360 // must run from there (b/c of OpenGL ES). Additionally, we
1361 // can't really acquire our internal lock from
1362 // destroySurface() -- see postMessage() below.
1363 ssize_t idx = flinger->mLayerPurgatory.remove(l);
1365 "layer=%p is not in the purgatory list", l.get());
1368 LOGE_IF(err<0 && err != NAME_NOT_FOUND,
1369 "error removing layer=%p (%s)", l.get(), strerror(-err));
1374 postMessageAsync( new MessageDestroySurface(this, layer) );
1378 status_t SurfaceFlinger::setClientState(
1379 const sp<Client>& client,
1381 const layer_state_t* states)
1383 Mutex::Autolock _l(mStateLock);
1385 for (int i=0 ; i<count ; i++) {
1386 const layer_state_t& s(states[i]);
1387 sp<LayerBaseClient> layer(client->getLayerUser(s.surface));
1389 const uint32_t what = s.what;
1390 if (what & ePositionChanged) {
1391 if (layer->setPosition(s.x, s.y))
1392 flags |= eTraversalNeeded;
1394 if (what & eLayerChanged) {
1395 ssize_t idx = mCurrentState.layersSortedByZ.indexOf(layer);
1396 if (layer->setLayer(s.z)) {
1397 mCurrentState.layersSortedByZ.removeAt(idx);
1398 mCurrentState.layersSortedByZ.add(layer);
1399 // we need traversal (state changed)
1400 // AND transaction (list changed)
1401 flags |= eTransactionNeeded|eTraversalNeeded;
1404 if (what & eSizeChanged) {
1405 if (layer->setSize(s.w, s.h)) {
1406 flags |= eTraversalNeeded;
1407 mResizeTransationPending = true;
1410 if (what & eAlphaChanged) {
1411 if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f)))
1412 flags |= eTraversalNeeded;
1414 if (what & eMatrixChanged) {
1415 if (layer->setMatrix(s.matrix))
1416 flags |= eTraversalNeeded;
1418 if (what & eTransparentRegionChanged) {
1419 if (layer->setTransparentRegionHint(s.transparentRegion))
1420 flags |= eTraversalNeeded;
1422 if (what & eVisibilityChanged) {
1423 if (layer->setFlags(s.flags, s.mask))
1424 flags |= eTraversalNeeded;
1429 setTransactionFlags(flags);
1434 void SurfaceFlinger::screenReleased(int dpy)
1436 // this may be called by a signal handler, we can't do too much in here
1437 android_atomic_or(eConsoleReleased, &mConsoleSignals);
1441 void SurfaceFlinger::screenAcquired(int dpy)
1443 // this may be called by a signal handler, we can't do too much in here
1444 android_atomic_or(eConsoleAcquired, &mConsoleSignals);
1448 status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args)
1450 const size_t SIZE = 4096;
1453 if (!mDump.checkCalling()) {
1454 snprintf(buffer, SIZE, "Permission Denial: "
1455 "can't dump SurfaceFlinger from pid=%d, uid=%d\n",
1456 IPCThreadState::self()->getCallingPid(),
1457 IPCThreadState::self()->getCallingUid());
1458 result.append(buffer);
1461 // figure out if we're stuck somewhere
1462 const nsecs_t now = systemTime();
1463 const nsecs_t inSwapBuffers(mDebugInSwapBuffers);
1464 const nsecs_t inTransaction(mDebugInTransaction);
1465 nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0;
1466 nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0;
1468 // Try to get the main lock, but don't insist if we can't
1469 // (this would indicate SF is stuck, but we want to be able to
1470 // print something in dumpsys).
1472 while (mStateLock.tryLock()<0 && --retry>=0) {
1475 const bool locked(retry >= 0);
1477 snprintf(buffer, SIZE,
1478 "SurfaceFlinger appears to be unresponsive, "
1479 "dumping anyways (no locks held)\n");
1480 result.append(buffer);
1484 * Dump the visible layer list
1486 const LayerVector& currentLayers = mCurrentState.layersSortedByZ;
1487 const size_t count = currentLayers.size();
1488 snprintf(buffer, SIZE, "Visible layers (count = %d)\n", count);
1489 result.append(buffer);
1490 for (size_t i=0 ; i<count ; i++) {
1491 const sp<LayerBase>& layer(currentLayers[i]);
1492 layer->dump(result, buffer, SIZE);
1493 const Layer::State& s(layer->drawingState());
1494 s.transparentRegion.dump(result, "transparentRegion");
1495 layer->transparentRegionScreen.dump(result, "transparentRegionScreen");
1496 layer->visibleRegionScreen.dump(result, "visibleRegionScreen");
1500 * Dump the layers in the purgatory
1503 const size_t purgatorySize = mLayerPurgatory.size();
1504 snprintf(buffer, SIZE, "Purgatory state (%d entries)\n", purgatorySize);
1505 result.append(buffer);
1506 for (size_t i=0 ; i<purgatorySize ; i++) {
1507 const sp<LayerBase>& layer(mLayerPurgatory.itemAt(i));
1508 layer->shortDump(result, buffer, SIZE);
1512 * Dump SurfaceFlinger global state
1515 snprintf(buffer, SIZE, "SurfaceFlinger global state\n");
1516 result.append(buffer);
1517 mWormholeRegion.dump(result, "WormholeRegion");
1518 const DisplayHardware& hw(graphicPlane(0).displayHardware());
1519 snprintf(buffer, SIZE,
1520 " display frozen: %s, freezeCount=%d, orientation=%d, canDraw=%d\n",
1521 mFreezeDisplay?"yes":"no", mFreezeCount,
1522 mCurrentState.orientation, hw.canDraw());
1523 result.append(buffer);
1524 snprintf(buffer, SIZE,
1525 " last eglSwapBuffers() time: %f us\n"
1526 " last transaction time : %f us\n",
1527 mLastSwapBufferTime/1000.0, mLastTransactionTime/1000.0);
1528 result.append(buffer);
1530 if (inSwapBuffersDuration || !locked) {
1531 snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n",
1532 inSwapBuffersDuration/1000.0);
1533 result.append(buffer);
1536 if (inTransactionDuration || !locked) {
1537 snprintf(buffer, SIZE, " transaction time: %f us\n",
1538 inTransactionDuration/1000.0);
1539 result.append(buffer);
1543 * Dump HWComposer state
1545 HWComposer& hwc(hw.getHwComposer());
1546 snprintf(buffer, SIZE, " h/w composer %s and %s\n",
1547 hwc.initCheck()==NO_ERROR ? "present" : "not present",
1548 mDebugDisableHWC ? "disabled" : "enabled");
1549 result.append(buffer);
1550 hwc.dump(result, buffer, SIZE);
1553 * Dump gralloc state
1555 const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get());
1560 mStateLock.unlock();
1563 write(fd, result.string(), result.size());
1567 status_t SurfaceFlinger::onTransact(
1568 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
1571 case CREATE_CONNECTION:
1572 case OPEN_GLOBAL_TRANSACTION:
1573 case CLOSE_GLOBAL_TRANSACTION:
1574 case SET_ORIENTATION:
1575 case FREEZE_DISPLAY:
1576 case UNFREEZE_DISPLAY:
1578 case TURN_ELECTRON_BEAM_OFF:
1579 case TURN_ELECTRON_BEAM_ON:
1581 // codes that require permission check
1582 IPCThreadState* ipc = IPCThreadState::self();
1583 const int pid = ipc->getCallingPid();
1584 const int uid = ipc->getCallingUid();
1585 if ((uid != AID_GRAPHICS) && !mAccessSurfaceFlinger.check(pid, uid)) {
1586 LOGE("Permission Denial: "
1587 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid);
1588 return PERMISSION_DENIED;
1592 case CAPTURE_SCREEN:
1594 // codes that require permission check
1595 IPCThreadState* ipc = IPCThreadState::self();
1596 const int pid = ipc->getCallingPid();
1597 const int uid = ipc->getCallingUid();
1598 if ((uid != AID_GRAPHICS) && !mReadFramebuffer.check(pid, uid)) {
1599 LOGE("Permission Denial: "
1600 "can't read framebuffer pid=%d, uid=%d", pid, uid);
1601 return PERMISSION_DENIED;
1607 status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags);
1608 if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) {
1609 CHECK_INTERFACE(ISurfaceComposer, data, reply);
1610 if (UNLIKELY(!mHardwareTest.checkCalling())) {
1611 IPCThreadState* ipc = IPCThreadState::self();
1612 const int pid = ipc->getCallingPid();
1613 const int uid = ipc->getCallingUid();
1614 LOGE("Permission Denial: "
1615 "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid);
1616 return PERMISSION_DENIED;
1620 case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE
1621 case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE
1623 case 1002: // SHOW_UPDATES
1624 n = data.readInt32();
1625 mDebugRegion = n ? n : (mDebugRegion ? 0 : 1);
1627 case 1003: // SHOW_BACKGROUND
1628 n = data.readInt32();
1629 mDebugBackground = n ? 1 : 0;
1631 case 1008: // toggle use of hw composer
1632 n = data.readInt32();
1633 mDebugDisableHWC = n ? 1 : 0;
1634 invalidateHwcGeometry();
1636 case 1004:{ // repaint everything
1637 Mutex::Autolock _l(mStateLock);
1638 const DisplayHardware& hw(graphicPlane(0).displayHardware());
1639 mDirtyRegion.set(hw.bounds()); // careful that's not thread-safe
1643 case 1005:{ // force transaction
1644 setTransactionFlags(eTransactionNeeded|eTraversalNeeded);
1647 case 1006:{ // enable/disable GraphicLog
1648 int enabled = data.readInt32();
1649 GraphicLog::getInstance().setEnabled(enabled);
1652 case 1007: // set mFreezeCount
1653 mFreezeCount = data.readInt32();
1654 mFreezeDisplayTime = 0;
1656 case 1010: // interrogate.
1657 reply->writeInt32(0);
1658 reply->writeInt32(0);
1659 reply->writeInt32(mDebugRegion);
1660 reply->writeInt32(mDebugBackground);
1663 Mutex::Autolock _l(mStateLock);
1664 const DisplayHardware& hw(graphicPlane(0).displayHardware());
1665 reply->writeInt32(hw.getPageFlipCount());
1673 // ---------------------------------------------------------------------------
1675 status_t SurfaceFlinger::renderScreenToTextureLocked(DisplayID dpy,
1676 GLuint* textureName, GLfloat* uOut, GLfloat* vOut)
1678 if (!GLExtensions::getInstance().haveFramebufferObject())
1679 return INVALID_OPERATION;
1681 // get screen geometry
1682 const DisplayHardware& hw(graphicPlane(dpy).displayHardware());
1683 const uint32_t hw_w = hw.getWidth();
1684 const uint32_t hw_h = hw.getHeight();
1688 // make sure to clear all GL error flags
1689 while ( glGetError() != GL_NO_ERROR ) ;
1693 glGenTextures(1, &tname);
1694 glBindTexture(GL_TEXTURE_2D, tname);
1695 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB,
1696 hw_w, hw_h, 0, GL_RGB, GL_UNSIGNED_BYTE, 0);
1697 if (glGetError() != GL_NO_ERROR) {
1698 while ( glGetError() != GL_NO_ERROR ) ;
1699 GLint tw = (2 << (31 - clz(hw_w)));
1700 GLint th = (2 << (31 - clz(hw_h)));
1701 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB,
1702 tw, th, 0, GL_RGB, GL_UNSIGNED_BYTE, 0);
1703 u = GLfloat(hw_w) / tw;
1704 v = GLfloat(hw_h) / th;
1706 glGenFramebuffersOES(1, &name);
1707 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name);
1708 glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES,
1709 GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0);
1711 // redraw the screen entirely...
1712 glClearColor(0,0,0,1);
1713 glClear(GL_COLOR_BUFFER_BIT);
1714 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ);
1715 const size_t count = layers.size();
1716 for (size_t i=0 ; i<count ; ++i) {
1717 const sp<LayerBase>& layer(layers[i]);
1718 layer->drawForSreenShot();
1721 // back to main framebuffer
1722 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0);
1723 glDisable(GL_SCISSOR_TEST);
1724 glDeleteFramebuffersOES(1, &name);
1726 *textureName = tname;
1732 // ---------------------------------------------------------------------------
1734 status_t SurfaceFlinger::electronBeamOffAnimationImplLocked()
1736 status_t result = PERMISSION_DENIED;
1738 if (!GLExtensions::getInstance().haveFramebufferObject())
1739 return INVALID_OPERATION;
1741 // get screen geometry
1742 const DisplayHardware& hw(graphicPlane(0).displayHardware());
1743 const uint32_t hw_w = hw.getWidth();
1744 const uint32_t hw_h = hw.getHeight();
1745 const Region screenBounds(hw.bounds());
1749 result = renderScreenToTextureLocked(0, &tname, &u, &v);
1750 if (result != NO_ERROR) {
1755 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} };
1756 glEnable(GL_TEXTURE_2D);
1757 glBindTexture(GL_TEXTURE_2D, tname);
1758 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
1759 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
1760 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
1761 glTexCoordPointer(2, GL_FLOAT, 0, texCoords);
1762 glEnableClientState(GL_TEXTURE_COORD_ARRAY);
1763 glVertexPointer(2, GL_FLOAT, 0, vtx);
1765 class s_curve_interpolator {
1766 const float nbFrames, s, v;
1768 s_curve_interpolator(int nbFrames, float s)
1769 : nbFrames(1.0f / (nbFrames-1)), s(s),
1770 v(1.0f + expf(-s + 0.5f*s)) {
1772 float operator()(int f) {
1773 const float x = f * nbFrames;
1774 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f;
1779 const GLfloat hw_w, hw_h;
1781 v_stretch(uint32_t hw_w, uint32_t hw_h)
1782 : hw_w(hw_w), hw_h(hw_h) {
1784 void operator()(GLfloat* vtx, float v) {
1785 const GLfloat w = hw_w + (hw_w * v);
1786 const GLfloat h = hw_h - (hw_h * v);
1787 const GLfloat x = (hw_w - w) * 0.5f;
1788 const GLfloat y = (hw_h - h) * 0.5f;
1789 vtx[0] = x; vtx[1] = y;
1790 vtx[2] = x; vtx[3] = y + h;
1791 vtx[4] = x + w; vtx[5] = y + h;
1792 vtx[6] = x + w; vtx[7] = y;
1797 const GLfloat hw_w, hw_h;
1799 h_stretch(uint32_t hw_w, uint32_t hw_h)
1800 : hw_w(hw_w), hw_h(hw_h) {
1802 void operator()(GLfloat* vtx, float v) {
1803 const GLfloat w = hw_w - (hw_w * v);
1804 const GLfloat h = 1.0f;
1805 const GLfloat x = (hw_w - w) * 0.5f;
1806 const GLfloat y = (hw_h - h) * 0.5f;
1807 vtx[0] = x; vtx[1] = y;
1808 vtx[2] = x; vtx[3] = y + h;
1809 vtx[4] = x + w; vtx[5] = y + h;
1810 vtx[6] = x + w; vtx[7] = y;
1814 // the full animation is 24 frames
1815 const int nbFrames = 12;
1816 s_curve_interpolator itr(nbFrames, 7.5f);
1817 s_curve_interpolator itg(nbFrames, 8.0f);
1818 s_curve_interpolator itb(nbFrames, 8.5f);
1820 v_stretch vverts(hw_w, hw_h);
1822 glBlendFunc(GL_ONE, GL_ONE);
1823 for (int i=0 ; i<nbFrames ; i++) {
1825 const float vr = itr(i);
1826 const float vg = itg(i);
1827 const float vb = itb(i);
1830 glColorMask(1,1,1,1);
1831 glClear(GL_COLOR_BUFFER_BIT);
1832 glEnable(GL_TEXTURE_2D);
1834 // draw the red plane
1836 glColorMask(1,0,0,1);
1837 glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
1839 // draw the green plane
1841 glColorMask(0,1,0,1);
1842 glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
1844 // draw the blue plane
1846 glColorMask(0,0,1,1);
1847 glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
1849 // draw the white highlight (we use the last vertices)
1850 glDisable(GL_TEXTURE_2D);
1851 glColorMask(1,1,1,1);
1852 glColor4f(vg, vg, vg, 1);
1853 glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
1854 hw.flip(screenBounds);
1857 h_stretch hverts(hw_w, hw_h);
1858 glDisable(GL_BLEND);
1859 glDisable(GL_TEXTURE_2D);
1860 glColorMask(1,1,1,1);
1861 for (int i=0 ; i<nbFrames ; i++) {
1862 const float v = itg(i);
1864 glClear(GL_COLOR_BUFFER_BIT);
1865 glColor4f(1-v, 1-v, 1-v, 1);
1866 glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
1867 hw.flip(screenBounds);
1870 glColorMask(1,1,1,1);
1871 glEnable(GL_SCISSOR_TEST);
1872 glDisableClientState(GL_TEXTURE_COORD_ARRAY);
1873 glDeleteTextures(1, &tname);
1877 status_t SurfaceFlinger::electronBeamOnAnimationImplLocked()
1879 status_t result = PERMISSION_DENIED;
1881 if (!GLExtensions::getInstance().haveFramebufferObject())
1882 return INVALID_OPERATION;
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.bounds());
1893 result = renderScreenToTextureLocked(0, &tname, &u, &v);
1894 if (result != NO_ERROR) {
1898 // back to main framebuffer
1899 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0);
1900 glDisable(GL_SCISSOR_TEST);
1903 const GLfloat texCoords[4][2] = { {0,v}, {0,0}, {u,0}, {u,v} };
1904 glEnable(GL_TEXTURE_2D);
1905 glBindTexture(GL_TEXTURE_2D, tname);
1906 glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
1907 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
1908 glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
1909 glTexCoordPointer(2, GL_FLOAT, 0, texCoords);
1910 glEnableClientState(GL_TEXTURE_COORD_ARRAY);
1911 glVertexPointer(2, GL_FLOAT, 0, vtx);
1913 class s_curve_interpolator {
1914 const float nbFrames, s, v;
1916 s_curve_interpolator(int nbFrames, float s)
1917 : nbFrames(1.0f / (nbFrames-1)), s(s),
1918 v(1.0f + expf(-s + 0.5f*s)) {
1920 float operator()(int f) {
1921 const float x = f * nbFrames;
1922 return ((1.0f/(1.0f + expf(-x*s + 0.5f*s))) - 0.5f) * v + 0.5f;
1927 const GLfloat hw_w, hw_h;
1929 v_stretch(uint32_t hw_w, uint32_t hw_h)
1930 : hw_w(hw_w), hw_h(hw_h) {
1932 void operator()(GLfloat* vtx, float v) {
1933 const GLfloat w = hw_w + (hw_w * v);
1934 const GLfloat h = hw_h - (hw_h * v);
1935 const GLfloat x = (hw_w - w) * 0.5f;
1936 const GLfloat y = (hw_h - h) * 0.5f;
1937 vtx[0] = x; vtx[1] = y;
1938 vtx[2] = x; vtx[3] = y + h;
1939 vtx[4] = x + w; vtx[5] = y + h;
1940 vtx[6] = x + w; vtx[7] = y;
1945 const GLfloat hw_w, hw_h;
1947 h_stretch(uint32_t hw_w, uint32_t hw_h)
1948 : hw_w(hw_w), hw_h(hw_h) {
1950 void operator()(GLfloat* vtx, float v) {
1951 const GLfloat w = hw_w - (hw_w * v);
1952 const GLfloat h = 1.0f;
1953 const GLfloat x = (hw_w - w) * 0.5f;
1954 const GLfloat y = (hw_h - h) * 0.5f;
1955 vtx[0] = x; vtx[1] = y;
1956 vtx[2] = x; vtx[3] = y + h;
1957 vtx[4] = x + w; vtx[5] = y + h;
1958 vtx[6] = x + w; vtx[7] = y;
1962 // the full animation is 12 frames
1964 s_curve_interpolator itr(nbFrames, 7.5f);
1965 s_curve_interpolator itg(nbFrames, 8.0f);
1966 s_curve_interpolator itb(nbFrames, 8.5f);
1968 h_stretch hverts(hw_w, hw_h);
1969 glDisable(GL_BLEND);
1970 glDisable(GL_TEXTURE_2D);
1971 glColorMask(1,1,1,1);
1972 for (int i=nbFrames-1 ; i>=0 ; i--) {
1973 const float v = itg(i);
1975 glClear(GL_COLOR_BUFFER_BIT);
1976 glColor4f(1-v, 1-v, 1-v, 1);
1977 glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
1978 hw.flip(screenBounds);
1982 v_stretch vverts(hw_w, hw_h);
1984 glBlendFunc(GL_ONE, GL_ONE);
1985 for (int i=nbFrames-1 ; i>=0 ; i--) {
1987 const float vr = itr(i);
1988 const float vg = itg(i);
1989 const float vb = itb(i);
1992 glColorMask(1,1,1,1);
1993 glClear(GL_COLOR_BUFFER_BIT);
1994 glEnable(GL_TEXTURE_2D);
1996 // draw the red plane
1998 glColorMask(1,0,0,1);
1999 glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
2001 // draw the green plane
2003 glColorMask(0,1,0,1);
2004 glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
2006 // draw the blue plane
2008 glColorMask(0,0,1,1);
2009 glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
2011 hw.flip(screenBounds);
2014 glColorMask(1,1,1,1);
2015 glEnable(GL_SCISSOR_TEST);
2016 glDisableClientState(GL_TEXTURE_COORD_ARRAY);
2017 glDeleteTextures(1, &tname);
2022 // ---------------------------------------------------------------------------
2024 status_t SurfaceFlinger::turnElectronBeamOffImplLocked(int32_t mode)
2026 DisplayHardware& hw(graphicPlane(0).editDisplayHardware());
2027 if (!hw.canDraw()) {
2028 // we're already off
2031 if (mode & ISurfaceComposer::eElectronBeamAnimationOff) {
2032 electronBeamOffAnimationImplLocked();
2035 // always clear the whole screen at the end of the animation
2036 glClearColor(0,0,0,1);
2037 glDisable(GL_SCISSOR_TEST);
2038 glClear(GL_COLOR_BUFFER_BIT);
2039 glEnable(GL_SCISSOR_TEST);
2040 hw.flip( Region(hw.bounds()) );
2042 hw.setCanDraw(false);
2046 status_t SurfaceFlinger::turnElectronBeamOff(int32_t mode)
2048 class MessageTurnElectronBeamOff : public MessageBase {
2049 SurfaceFlinger* flinger;
2053 MessageTurnElectronBeamOff(SurfaceFlinger* flinger, int32_t mode)
2054 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) {
2056 status_t getResult() const {
2059 virtual bool handler() {
2060 Mutex::Autolock _l(flinger->mStateLock);
2061 result = flinger->turnElectronBeamOffImplLocked(mode);
2066 sp<MessageBase> msg = new MessageTurnElectronBeamOff(this, mode);
2067 status_t res = postMessageSync(msg);
2068 if (res == NO_ERROR) {
2069 res = static_cast<MessageTurnElectronBeamOff*>( msg.get() )->getResult();
2071 // work-around: when the power-manager calls us we activate the
2072 // animation. eventually, the "on" animation will be called
2073 // by the power-manager itself
2074 mElectronBeamAnimationMode = mode;
2079 // ---------------------------------------------------------------------------
2081 status_t SurfaceFlinger::turnElectronBeamOnImplLocked(int32_t mode)
2083 DisplayHardware& hw(graphicPlane(0).editDisplayHardware());
2088 if (mode & ISurfaceComposer::eElectronBeamAnimationOn) {
2089 electronBeamOnAnimationImplLocked();
2091 hw.setCanDraw(true);
2093 // make sure to redraw the whole screen when the animation is done
2094 mDirtyRegion.set(hw.bounds());
2100 status_t SurfaceFlinger::turnElectronBeamOn(int32_t mode)
2102 class MessageTurnElectronBeamOn : public MessageBase {
2103 SurfaceFlinger* flinger;
2107 MessageTurnElectronBeamOn(SurfaceFlinger* flinger, int32_t mode)
2108 : flinger(flinger), mode(mode), result(PERMISSION_DENIED) {
2110 status_t getResult() const {
2113 virtual bool handler() {
2114 Mutex::Autolock _l(flinger->mStateLock);
2115 result = flinger->turnElectronBeamOnImplLocked(mode);
2120 postMessageAsync( new MessageTurnElectronBeamOn(this, mode) );
2124 // ---------------------------------------------------------------------------
2126 status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy,
2127 sp<IMemoryHeap>* heap,
2128 uint32_t* w, uint32_t* h, PixelFormat* f,
2129 uint32_t sw, uint32_t sh,
2130 uint32_t minLayerZ, uint32_t maxLayerZ)
2132 status_t result = PERMISSION_DENIED;
2134 // only one display supported for now
2135 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT))
2138 if (!GLExtensions::getInstance().haveFramebufferObject())
2139 return INVALID_OPERATION;
2141 // get screen geometry
2142 const DisplayHardware& hw(graphicPlane(dpy).displayHardware());
2143 const uint32_t hw_w = hw.getWidth();
2144 const uint32_t hw_h = hw.getHeight();
2146 if ((sw > hw_w) || (sh > hw_h))
2149 sw = (!sw) ? hw_w : sw;
2150 sh = (!sh) ? hw_h : sh;
2151 const size_t size = sw * sh * 4;
2153 //LOGD("screenshot: sw=%d, sh=%d, minZ=%d, maxZ=%d",
2154 // sw, sh, minLayerZ, maxLayerZ);
2156 // make sure to clear all GL error flags
2157 while ( glGetError() != GL_NO_ERROR ) ;
2161 glGenRenderbuffersOES(1, &tname);
2162 glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname);
2163 glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh);
2164 glGenFramebuffersOES(1, &name);
2165 glBindFramebufferOES(GL_FRAMEBUFFER_OES, name);
2166 glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES,
2167 GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname);
2169 GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES);
2171 if (status == GL_FRAMEBUFFER_COMPLETE_OES) {
2173 // invert everything, b/c glReadPixel() below will invert the FB
2174 glViewport(0, 0, sw, sh);
2175 glScissor(0, 0, sw, sh);
2176 glMatrixMode(GL_PROJECTION);
2179 glOrthof(0, hw_w, 0, hw_h, 0, 1);
2180 glMatrixMode(GL_MODELVIEW);
2182 // redraw the screen entirely...
2183 glClearColor(0,0,0,1);
2184 glClear(GL_COLOR_BUFFER_BIT);
2186 const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ);
2187 const size_t count = layers.size();
2188 for (size_t i=0 ; i<count ; ++i) {
2189 const sp<LayerBase>& layer(layers[i]);
2190 const uint32_t z = layer->drawingState().z;
2191 if (z >= minLayerZ && z <= maxLayerZ) {
2192 layer->drawForSreenShot();
2196 // XXX: this is needed on tegra
2197 glScissor(0, 0, sw, sh);
2199 // check for errors and return screen capture
2200 if (glGetError() != GL_NO_ERROR) {
2201 // error while rendering
2202 result = INVALID_OPERATION;
2204 // allocate shared memory large enough to hold the
2206 sp<MemoryHeapBase> base(
2207 new MemoryHeapBase(size, 0, "screen-capture") );
2208 void* const ptr = base->getBase();
2210 // capture the screen with glReadPixels()
2211 glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr);
2212 if (glGetError() == GL_NO_ERROR) {
2216 *f = PIXEL_FORMAT_RGBA_8888;
2223 glEnable(GL_SCISSOR_TEST);
2224 glViewport(0, 0, hw_w, hw_h);
2225 glMatrixMode(GL_PROJECTION);
2227 glMatrixMode(GL_MODELVIEW);
2232 // release FBO resources
2233 glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0);
2234 glDeleteRenderbuffersOES(1, &tname);
2235 glDeleteFramebuffersOES(1, &name);
2237 hw.compositionComplete();
2239 // LOGD("screenshot: result = %s", result<0 ? strerror(result) : "OK");
2245 status_t SurfaceFlinger::captureScreen(DisplayID dpy,
2246 sp<IMemoryHeap>* heap,
2247 uint32_t* width, uint32_t* height, PixelFormat* format,
2248 uint32_t sw, uint32_t sh,
2249 uint32_t minLayerZ, uint32_t maxLayerZ)
2251 // only one display supported for now
2252 if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT))
2255 if (!GLExtensions::getInstance().haveFramebufferObject())
2256 return INVALID_OPERATION;
2258 class MessageCaptureScreen : public MessageBase {
2259 SurfaceFlinger* flinger;
2261 sp<IMemoryHeap>* heap;
2271 MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy,
2272 sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f,
2273 uint32_t sw, uint32_t sh,
2274 uint32_t minLayerZ, uint32_t maxLayerZ)
2275 : flinger(flinger), dpy(dpy),
2276 heap(heap), w(w), h(h), f(f), sw(sw), sh(sh),
2277 minLayerZ(minLayerZ), maxLayerZ(maxLayerZ),
2278 result(PERMISSION_DENIED)
2281 status_t getResult() const {
2284 virtual bool handler() {
2285 Mutex::Autolock _l(flinger->mStateLock);
2287 // if we have secure windows, never allow the screen capture
2288 if (flinger->mSecureFrameBuffer)
2291 result = flinger->captureScreenImplLocked(dpy,
2292 heap, w, h, f, sw, sh, minLayerZ, maxLayerZ);
2298 sp<MessageBase> msg = new MessageCaptureScreen(this,
2299 dpy, heap, width, height, format, sw, sh, minLayerZ, maxLayerZ);
2300 status_t res = postMessageSync(msg);
2301 if (res == NO_ERROR) {
2302 res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult();
2307 // ---------------------------------------------------------------------------
2309 sp<Layer> SurfaceFlinger::getLayer(const sp<ISurface>& sur) const
2312 Mutex::Autolock _l(mStateLock);
2313 result = mLayerMap.valueFor( sur->asBinder() ).promote();
2317 // ---------------------------------------------------------------------------
2319 Client::Client(const sp<SurfaceFlinger>& flinger)
2320 : mFlinger(flinger), mNameGenerator(1)
2326 const size_t count = mLayers.size();
2327 for (size_t i=0 ; i<count ; i++) {
2328 sp<LayerBaseClient> layer(mLayers.valueAt(i).promote());
2330 mFlinger->removeLayer(layer);
2335 status_t Client::initCheck() const {
2339 ssize_t Client::attachLayer(const sp<LayerBaseClient>& layer)
2341 int32_t name = android_atomic_inc(&mNameGenerator);
2342 mLayers.add(name, layer);
2346 void Client::detachLayer(const LayerBaseClient* layer)
2348 // we do a linear search here, because this doesn't happen often
2349 const size_t count = mLayers.size();
2350 for (size_t i=0 ; i<count ; i++) {
2351 if (mLayers.valueAt(i) == layer) {
2352 mLayers.removeItemsAt(i, 1);
2357 sp<LayerBaseClient> Client::getLayerUser(int32_t i) const {
2358 sp<LayerBaseClient> lbc;
2359 const wp<LayerBaseClient>& layer(mLayers.valueFor(i));
2361 lbc = layer.promote();
2362 LOGE_IF(lbc==0, "getLayerUser(name=%d) is dead", int(i));
2367 sp<IMemoryHeap> Client::getControlBlock() const {
2370 ssize_t Client::getTokenForSurface(const sp<ISurface>& sur) const {
2373 sp<ISurface> Client::createSurface(
2374 ISurfaceComposerClient::surface_data_t* params, int pid,
2375 const String8& name,
2376 DisplayID display, uint32_t w, uint32_t h, PixelFormat format,
2379 return mFlinger->createSurface(this, pid, name, params,
2380 display, w, h, format, flags);
2382 status_t Client::destroySurface(SurfaceID sid) {
2383 return mFlinger->removeSurface(this, sid);
2385 status_t Client::setState(int32_t count, const layer_state_t* states) {
2386 return mFlinger->setClientState(this, count, states);
2389 // ---------------------------------------------------------------------------
2391 UserClient::UserClient(const sp<SurfaceFlinger>& flinger)
2392 : ctrlblk(0), mBitmap(0), mFlinger(flinger)
2394 const int pgsize = getpagesize();
2395 const int cblksize = ((sizeof(SharedClient)+(pgsize-1))&~(pgsize-1));
2397 mCblkHeap = new MemoryHeapBase(cblksize, 0,
2398 "SurfaceFlinger Client control-block");
2400 ctrlblk = static_cast<SharedClient *>(mCblkHeap->getBase());
2401 if (ctrlblk) { // construct the shared structure in-place.
2402 new(ctrlblk) SharedClient;
2406 UserClient::~UserClient()
2409 ctrlblk->~SharedClient(); // destroy our shared-structure.
2413 * When a UserClient dies, it's unclear what to do exactly.
2414 * We could go ahead and destroy all surfaces linked to that client
2415 * however, it wouldn't be fair to the main Client
2416 * (usually the the window-manager), which might want to re-target
2417 * the layer to another UserClient.
2418 * I think the best is to do nothing, or not much; in most cases the
2419 * WM itself will go ahead and clean things up when it detects a client of
2421 * The remaining question is what to display? currently we keep
2422 * just keep the current buffer.
2426 status_t UserClient::initCheck() const {
2427 return ctrlblk == 0 ? NO_INIT : NO_ERROR;
2430 void UserClient::detachLayer(const Layer* layer)
2432 int32_t name = layer->getToken();
2434 int32_t mask = 1LU<<name;
2435 if ((android_atomic_and(~mask, &mBitmap) & mask) == 0) {
2436 LOGW("token %d wasn't marked as used %08x", name, int(mBitmap));
2441 sp<IMemoryHeap> UserClient::getControlBlock() const {
2445 ssize_t UserClient::getTokenForSurface(const sp<ISurface>& sur) const
2447 int32_t name = NAME_NOT_FOUND;
2448 sp<Layer> layer(mFlinger->getLayer(sur));
2453 // if this layer already has a token, just return it
2454 name = layer->getToken();
2455 if ((name >= 0) && (layer->getClient() == this)) {
2461 int32_t mask = 1LU<<name;
2462 if ((android_atomic_or(mask, &mBitmap) & mask) == 0) {
2463 // we found and locked that name
2464 status_t err = layer->setToken(
2465 const_cast<UserClient*>(this), ctrlblk, name);
2466 if (err != NO_ERROR) {
2468 android_atomic_and(~mask, &mBitmap);
2473 if (++name >= SharedBufferStack::NUM_LAYERS_MAX)
2477 //LOGD("getTokenForSurface(%p) => %d (client=%p, bitmap=%08lx)",
2478 // sur->asBinder().get(), name, this, mBitmap);
2482 sp<ISurface> UserClient::createSurface(
2483 ISurfaceComposerClient::surface_data_t* params, int pid,
2484 const String8& name,
2485 DisplayID display, uint32_t w, uint32_t h, PixelFormat format,
2489 status_t UserClient::destroySurface(SurfaceID sid) {
2490 return INVALID_OPERATION;
2492 status_t UserClient::setState(int32_t count, const layer_state_t* states) {
2493 return INVALID_OPERATION;
2496 // ---------------------------------------------------------------------------
2498 GraphicBufferAlloc::GraphicBufferAlloc() {}
2500 GraphicBufferAlloc::~GraphicBufferAlloc() {}
2502 sp<GraphicBuffer> GraphicBufferAlloc::createGraphicBuffer(uint32_t w, uint32_t h,
2503 PixelFormat format, uint32_t usage) {
2504 sp<GraphicBuffer> graphicBuffer(new GraphicBuffer(w, h, format, usage));
2505 status_t err = graphicBuffer->initCheck();
2507 LOGE("createGraphicBuffer: init check failed: %d", err);
2509 } else if (graphicBuffer->handle == 0) {
2510 LOGE("createGraphicBuffer: unable to create GraphicBuffer");
2513 Mutex::Autolock _l(mLock);
2514 mBuffers.add(graphicBuffer);
2515 return graphicBuffer;
2518 void GraphicBufferAlloc::freeAllGraphicBuffersExcept(int bufIdx) {
2519 Mutex::Autolock _l(mLock);
2520 if (0 <= bufIdx && bufIdx < mBuffers.size()) {
2521 sp<GraphicBuffer> b(mBuffers[bufIdx]);
2529 // ---------------------------------------------------------------------------
2531 GraphicPlane::GraphicPlane()
2536 GraphicPlane::~GraphicPlane() {
2540 bool GraphicPlane::initialized() const {
2541 return mHw ? true : false;
2544 int GraphicPlane::getWidth() const {
2548 int GraphicPlane::getHeight() const {
2552 void GraphicPlane::setDisplayHardware(DisplayHardware *hw)
2556 // initialize the display orientation transform.
2557 // it's a constant that should come from the display driver.
2558 int displayOrientation = ISurfaceComposer::eOrientationDefault;
2559 char property[PROPERTY_VALUE_MAX];
2560 if (property_get("ro.sf.hwrotation", property, NULL) > 0) {
2561 //displayOrientation
2562 switch (atoi(property)) {
2564 displayOrientation = ISurfaceComposer::eOrientation90;
2567 displayOrientation = ISurfaceComposer::eOrientation270;
2572 const float w = hw->getWidth();
2573 const float h = hw->getHeight();
2574 GraphicPlane::orientationToTransfrom(displayOrientation, w, h,
2575 &mDisplayTransform);
2576 if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) {
2584 setOrientation(ISurfaceComposer::eOrientationDefault);
2587 status_t GraphicPlane::orientationToTransfrom(
2588 int orientation, int w, int h, Transform* tr)
2591 switch (orientation) {
2592 case ISurfaceComposer::eOrientationDefault:
2593 flags = Transform::ROT_0;
2595 case ISurfaceComposer::eOrientation90:
2596 flags = Transform::ROT_90;
2598 case ISurfaceComposer::eOrientation180:
2599 flags = Transform::ROT_180;
2601 case ISurfaceComposer::eOrientation270:
2602 flags = Transform::ROT_270;
2607 tr->set(flags, w, h);
2611 status_t GraphicPlane::setOrientation(int orientation)
2613 // If the rotation can be handled in hardware, this is where
2614 // the magic should happen.
2616 const DisplayHardware& hw(displayHardware());
2617 const float w = mDisplayWidth;
2618 const float h = mDisplayHeight;
2622 Transform orientationTransform;
2623 GraphicPlane::orientationToTransfrom(orientation, w, h,
2624 &orientationTransform);
2625 if (orientation & ISurfaceComposer::eOrientationSwapMask) {
2630 mOrientation = orientation;
2631 mGlobalTransform = mDisplayTransform * orientationTransform;
2635 const DisplayHardware& GraphicPlane::displayHardware() const {
2639 DisplayHardware& GraphicPlane::editDisplayHardware() {
2643 const Transform& GraphicPlane::transform() const {
2644 return mGlobalTransform;
2647 EGLDisplay GraphicPlane::getEGLDisplay() const {
2648 return mHw->getEGLDisplay();
2651 // ---------------------------------------------------------------------------
2653 }; // namespace android