summaryrefslogtreecommitdiffstats
path: root/libs/surfaceflinger/SurfaceFlinger.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'libs/surfaceflinger/SurfaceFlinger.cpp')
-rw-r--r--libs/surfaceflinger/SurfaceFlinger.cpp1840
1 files changed, 1840 insertions, 0 deletions
diff --git a/libs/surfaceflinger/SurfaceFlinger.cpp b/libs/surfaceflinger/SurfaceFlinger.cpp
new file mode 100644
index 0000000..900282a
--- /dev/null
+++ b/libs/surfaceflinger/SurfaceFlinger.cpp
@@ -0,0 +1,1840 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "SurfaceFlinger"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <math.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+
+#include <cutils/log.h>
+#include <cutils/properties.h>
+
+#include <utils/IPCThreadState.h>
+#include <utils/IServiceManager.h>
+#include <utils/MemoryDealer.h>
+#include <utils/MemoryBase.h>
+#include <utils/String8.h>
+#include <utils/String16.h>
+#include <utils/StopWatch.h>
+
+#include <ui/PixelFormat.h>
+#include <ui/DisplayInfo.h>
+#include <ui/EGLDisplaySurface.h>
+
+#include <pixelflinger/pixelflinger.h>
+#include <GLES/gl.h>
+
+#include "clz.h"
+#include "CPUGauge.h"
+#include "Layer.h"
+#include "LayerBlur.h"
+#include "LayerBuffer.h"
+#include "LayerDim.h"
+#include "LayerBitmap.h"
+#include "LayerOrientationAnim.h"
+#include "OrientationAnimation.h"
+#include "SurfaceFlinger.h"
+#include "VRamHeap.h"
+
+#include "DisplayHardware/DisplayHardware.h"
+#include "GPUHardware/GPUHardware.h"
+
+
+#define DISPLAY_COUNT 1
+
+namespace android {
+
+// ---------------------------------------------------------------------------
+
+void SurfaceFlinger::instantiate() {
+ defaultServiceManager()->addService(
+ String16("SurfaceFlinger"), new SurfaceFlinger());
+}
+
+void SurfaceFlinger::shutdown() {
+ // we should unregister here, but not really because
+ // when (if) the service manager goes away, all the services
+ // it has a reference to will leave too.
+}
+
+// ---------------------------------------------------------------------------
+
+SurfaceFlinger::LayerVector::LayerVector(const SurfaceFlinger::LayerVector& rhs)
+ : lookup(rhs.lookup), layers(rhs.layers)
+{
+}
+
+ssize_t SurfaceFlinger::LayerVector::indexOf(
+ LayerBase* key, size_t guess) const
+{
+ if (guess<size() && lookup.keyAt(guess) == key)
+ return guess;
+ const ssize_t i = lookup.indexOfKey(key);
+ if (i>=0) {
+ const size_t idx = lookup.valueAt(i);
+ LOG_ASSERT(layers[idx]==key,
+ "LayerVector[%p]: layers[%d]=%p, key=%p",
+ this, int(idx), layers[idx], key);
+ return idx;
+ }
+ return i;
+}
+
+ssize_t SurfaceFlinger::LayerVector::add(
+ LayerBase* layer,
+ Vector<LayerBase*>::compar_t cmp)
+{
+ size_t count = layers.size();
+ ssize_t l = 0;
+ ssize_t h = count-1;
+ ssize_t mid;
+ LayerBase* const* a = layers.array();
+ while (l <= h) {
+ mid = l + (h - l)/2;
+ const int c = cmp(a+mid, &layer);
+ if (c == 0) { l = mid; break; }
+ else if (c<0) { l = mid+1; }
+ else { h = mid-1; }
+ }
+ size_t order = l;
+ while (order<count && !cmp(&layer, a+order)) {
+ order++;
+ }
+ count = lookup.size();
+ for (size_t i=0 ; i<count ; i++) {
+ if (lookup.valueAt(i) >= order) {
+ lookup.editValueAt(i)++;
+ }
+ }
+ layers.insertAt(layer, order);
+ lookup.add(layer, order);
+ return order;
+}
+
+ssize_t SurfaceFlinger::LayerVector::remove(LayerBase* layer)
+{
+ const ssize_t keyIndex = lookup.indexOfKey(layer);
+ if (keyIndex >= 0) {
+ const size_t index = lookup.valueAt(keyIndex);
+ LOG_ASSERT(layers[index]==layer,
+ "LayerVector[%p]: layers[%u]=%p, layer=%p",
+ this, int(index), layers[index], layer);
+ layers.removeItemsAt(index);
+ lookup.removeItemsAt(keyIndex);
+ const size_t count = lookup.size();
+ for (size_t i=0 ; i<count ; i++) {
+ if (lookup.valueAt(i) >= size_t(index)) {
+ lookup.editValueAt(i)--;
+ }
+ }
+ return index;
+ }
+ return NAME_NOT_FOUND;
+}
+
+ssize_t SurfaceFlinger::LayerVector::reorder(
+ LayerBase* layer,
+ Vector<LayerBase*>::compar_t cmp)
+{
+ // XXX: it's a little lame. but oh well...
+ ssize_t err = remove(layer);
+ if (err >=0)
+ err = add(layer, cmp);
+ return err;
+}
+
+// ---------------------------------------------------------------------------
+#if 0
+#pragma mark -
+#endif
+
+SurfaceFlinger::SurfaceFlinger()
+ : BnSurfaceComposer(), Thread(false),
+ mTransactionFlags(0),
+ mTransactionCount(0),
+ mBootTime(systemTime()),
+ mLastScheduledBroadcast(NULL),
+ mVisibleRegionsDirty(false),
+ mDeferReleaseConsole(false),
+ mFreezeDisplay(false),
+ mFreezeCount(0),
+ mDebugRegion(0),
+ mDebugCpu(0),
+ mDebugFps(0),
+ mDebugBackground(0),
+ mDebugNoBootAnimation(0),
+ mSyncObject(),
+ mDeplayedTransactionPending(0),
+ mConsoleSignals(0),
+ mSecureFrameBuffer(0)
+{
+ init();
+}
+
+void SurfaceFlinger::init()
+{
+ LOGI("SurfaceFlinger is starting");
+
+ // debugging stuff...
+ char value[PROPERTY_VALUE_MAX];
+ property_get("debug.sf.showupdates", value, "0");
+ mDebugRegion = atoi(value);
+ property_get("debug.sf.showcpu", value, "0");
+ mDebugCpu = atoi(value);
+ property_get("debug.sf.showbackground", value, "0");
+ mDebugBackground = atoi(value);
+ property_get("debug.sf.showfps", value, "0");
+ mDebugFps = atoi(value);
+ property_get("debug.sf.nobootanimation", value, "0");
+ mDebugNoBootAnimation = atoi(value);
+
+ LOGI_IF(mDebugRegion, "showupdates enabled");
+ LOGI_IF(mDebugCpu, "showcpu enabled");
+ LOGI_IF(mDebugBackground, "showbackground enabled");
+ LOGI_IF(mDebugFps, "showfps enabled");
+ LOGI_IF(mDebugNoBootAnimation, "boot animation disabled");
+}
+
+SurfaceFlinger::~SurfaceFlinger()
+{
+ glDeleteTextures(1, &mWormholeTexName);
+ delete mOrientationAnimation;
+}
+
+copybit_device_t* SurfaceFlinger::getBlitEngine() const
+{
+ return graphicPlane(0).displayHardware().getBlitEngine();
+}
+
+overlay_control_device_t* SurfaceFlinger::getOverlayEngine() const
+{
+ return graphicPlane(0).displayHardware().getOverlayEngine();
+}
+
+sp<IMemory> SurfaceFlinger::getCblk() const
+{
+ return mServerCblkMemory;
+}
+
+status_t SurfaceFlinger::requestGPU(const sp<IGPUCallback>& callback,
+ gpu_info_t* gpu)
+{
+ IPCThreadState* ipc = IPCThreadState::self();
+ const int pid = ipc->getCallingPid();
+ status_t err = mGPU->request(pid, callback, gpu);
+ return err;
+}
+
+status_t SurfaceFlinger::revokeGPU()
+{
+ return mGPU->friendlyRevoke();
+}
+
+sp<ISurfaceFlingerClient> SurfaceFlinger::createConnection()
+{
+ Mutex::Autolock _l(mStateLock);
+ uint32_t token = mTokens.acquire();
+
+ Client* client = new Client(token, this);
+ if ((client == 0) || (client->ctrlblk == 0)) {
+ mTokens.release(token);
+ return 0;
+ }
+ status_t err = mClientsMap.add(token, client);
+ if (err < 0) {
+ delete client;
+ mTokens.release(token);
+ return 0;
+ }
+ sp<BClient> bclient =
+ new BClient(this, token, client->controlBlockMemory());
+ return bclient;
+}
+
+void SurfaceFlinger::destroyConnection(ClientID cid)
+{
+ Mutex::Autolock _l(mStateLock);
+ Client* const client = mClientsMap.valueFor(cid);
+ if (client) {
+ // free all the layers this client owns
+ const Vector<LayerBaseClient*>& layers = client->getLayers();
+ const size_t count = layers.size();
+ for (size_t i=0 ; i<count ; i++) {
+ LayerBaseClient* const layer = layers[i];
+ removeLayer_l(layer);
+ }
+
+ // the resources associated with this client will be freed
+ // during the next transaction, after these surfaces have been
+ // properly removed from the screen
+
+ // remove this client from our ClientID->Client mapping.
+ mClientsMap.removeItem(cid);
+
+ // and add it to the list of disconnected clients
+ mDisconnectedClients.add(client);
+
+ // request a transaction
+ setTransactionFlags(eTransactionNeeded);
+ }
+}
+
+const GraphicPlane& SurfaceFlinger::graphicPlane(int dpy) const
+{
+ LOGE_IF(uint32_t(dpy) >= DISPLAY_COUNT, "Invalid DisplayID %d", dpy);
+ const GraphicPlane& plane(mGraphicPlanes[dpy]);
+ return plane;
+}
+
+GraphicPlane& SurfaceFlinger::graphicPlane(int dpy)
+{
+ return const_cast<GraphicPlane&>(
+ const_cast<SurfaceFlinger const *>(this)->graphicPlane(dpy));
+}
+
+void SurfaceFlinger::bootFinished()
+{
+ const nsecs_t now = systemTime();
+ const nsecs_t duration = now - mBootTime;
+ LOGI("Boot is finished (%ld ms)", long(ns2ms(duration)) );
+ if (mBootAnimation != 0) {
+ mBootAnimation->requestExit();
+ mBootAnimation.clear();
+ }
+}
+
+void SurfaceFlinger::onFirstRef()
+{
+ run("SurfaceFlinger", PRIORITY_URGENT_DISPLAY);
+
+ // Wait for the main thread to be done with its initialization
+ mReadyToRunBarrier.wait();
+}
+
+
+static inline uint16_t pack565(int r, int g, int b) {
+ return (r<<11)|(g<<5)|b;
+}
+
+// this is defined in libGLES_CM.so
+extern ISurfaceComposer* GLES_localSurfaceManager;
+
+status_t SurfaceFlinger::readyToRun()
+{
+ LOGI( "SurfaceFlinger's main thread ready to run. "
+ "Initializing graphics H/W...");
+
+ // create the shared control-block
+ mServerHeap = new MemoryDealer(4096, MemoryDealer::READ_ONLY);
+ LOGE_IF(mServerHeap==0, "can't create shared memory dealer");
+
+ mServerCblkMemory = mServerHeap->allocate(4096);
+ LOGE_IF(mServerCblkMemory==0, "can't create shared control block");
+
+ mServerCblk = static_cast<surface_flinger_cblk_t *>(mServerCblkMemory->pointer());
+ LOGE_IF(mServerCblk==0, "can't get to shared control block's address");
+ new(mServerCblk) surface_flinger_cblk_t;
+
+ // get a reference to the GPU if we have one
+ mGPU = GPUFactory::getGPU();
+
+ // create the surface Heap manager, which manages the heaps
+ // (be it in RAM or VRAM) where surfaces are allocated
+ // We give 8 MB per client.
+ mSurfaceHeapManager = new SurfaceHeapManager(this, 8 << 20);
+
+
+ GLES_localSurfaceManager = static_cast<ISurfaceComposer*>(this);
+
+ // we only support one display currently
+ int dpy = 0;
+
+ {
+ // initialize the main display
+ GraphicPlane& plane(graphicPlane(dpy));
+ DisplayHardware* const hw = new DisplayHardware(this, dpy);
+ plane.setDisplayHardware(hw);
+ }
+
+ // initialize primary screen
+ // (other display should be initialized in the same manner, but
+ // asynchronously, as they could come and go. None of this is supported
+ // yet).
+ const GraphicPlane& plane(graphicPlane(dpy));
+ const DisplayHardware& hw = plane.displayHardware();
+ const uint32_t w = hw.getWidth();
+ const uint32_t h = hw.getHeight();
+ const uint32_t f = hw.getFormat();
+ hw.makeCurrent();
+
+ // initialize the shared control block
+ mServerCblk->connected |= 1<<dpy;
+ display_cblk_t* dcblk = mServerCblk->displays + dpy;
+ memset(dcblk, 0, sizeof(display_cblk_t));
+ dcblk->w = w;
+ dcblk->h = h;
+ dcblk->format = f;
+ dcblk->orientation = ISurfaceComposer::eOrientationDefault;
+ dcblk->xdpi = hw.getDpiX();
+ dcblk->ydpi = hw.getDpiY();
+ dcblk->fps = hw.getRefreshRate();
+ dcblk->density = hw.getDensity();
+ asm volatile ("":::"memory");
+
+ // Initialize OpenGL|ES
+ glActiveTexture(GL_TEXTURE0);
+ glBindTexture(GL_TEXTURE_2D, 0);
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
+ glPixelStorei(GL_PACK_ALIGNMENT, 4);
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnable(GL_SCISSOR_TEST);
+ glShadeModel(GL_FLAT);
+ glDisable(GL_DITHER);
+ glDisable(GL_CULL_FACE);
+
+ const uint16_t g0 = pack565(0x0F,0x1F,0x0F);
+ const uint16_t g1 = pack565(0x17,0x2f,0x17);
+ const uint16_t textureData[4] = { g0, g1, g1, g0 };
+ glGenTextures(1, &mWormholeTexName);
+ glBindTexture(GL_TEXTURE_2D, mWormholeTexName);
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+ glTexParameterx(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 2, 2, 0,
+ GL_RGB, GL_UNSIGNED_SHORT_5_6_5, textureData);
+
+ glViewport(0, 0, w, h);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrthof(0, w, h, 0, 0, 1);
+
+ LayerDim::initDimmer(this, w, h);
+
+ mReadyToRunBarrier.open();
+
+ /*
+ * We're now ready to accept clients...
+ */
+
+ mOrientationAnimation = new OrientationAnimation(this);
+
+ // start CPU gauge display
+ if (mDebugCpu)
+ mCpuGauge = new CPUGauge(this, ms2ns(500));
+
+ // the boot animation!
+ if (mDebugNoBootAnimation == false)
+ mBootAnimation = new BootAnimation(this);
+
+ return NO_ERROR;
+}
+
+// ----------------------------------------------------------------------------
+#if 0
+#pragma mark -
+#pragma mark Events Handler
+#endif
+
+void SurfaceFlinger::waitForEvent()
+{
+ // wait for something to do
+ if (UNLIKELY(isFrozen())) {
+ // wait 5 seconds
+ int err = mSyncObject.wait(ms2ns(5000));
+ if (err != NO_ERROR) {
+ if (isFrozen()) {
+ // we timed out and are still frozen
+ LOGW("timeout expired mFreezeDisplay=%d, mFreezeCount=%d",
+ mFreezeDisplay, mFreezeCount);
+ mFreezeCount = 0;
+ }
+ }
+ } else {
+ mSyncObject.wait();
+ }
+}
+
+void SurfaceFlinger::signalEvent() {
+ mSyncObject.open();
+}
+
+void SurfaceFlinger::signal() const {
+ mSyncObject.open();
+}
+
+void SurfaceFlinger::signalDelayedEvent(nsecs_t delay)
+{
+ if (android_atomic_or(1, &mDeplayedTransactionPending) == 0) {
+ sp<DelayedTransaction> delayedEvent(new DelayedTransaction(this, delay));
+ delayedEvent->run("DelayedeEvent", PRIORITY_URGENT_DISPLAY);
+ }
+}
+
+// ----------------------------------------------------------------------------
+#if 0
+#pragma mark -
+#pragma mark Main loop
+#endif
+
+bool SurfaceFlinger::threadLoop()
+{
+ waitForEvent();
+
+ // check for transactions
+ if (UNLIKELY(mConsoleSignals)) {
+ handleConsoleEvents();
+ }
+
+ if (LIKELY(mTransactionCount == 0)) {
+ // if we're in a global transaction, don't do anything.
+ const uint32_t mask = eTransactionNeeded | eTraversalNeeded;
+ uint32_t transactionFlags = getTransactionFlags(mask);
+ if (LIKELY(transactionFlags)) {
+ handleTransaction(transactionFlags);
+ }
+ }
+
+ // post surfaces (if needed)
+ handlePageFlip();
+
+ const DisplayHardware& hw(graphicPlane(0).displayHardware());
+ if (LIKELY(hw.canDraw())) {
+ // repaint the framebuffer (if needed)
+ handleRepaint();
+
+ // release the clients before we flip ('cause flip might block)
+ unlockClients();
+ executeScheduledBroadcasts();
+
+ // sample the cpu gauge
+ if (UNLIKELY(mDebugCpu)) {
+ handleDebugCpu();
+ }
+
+ postFramebuffer();
+ } else {
+ // pretend we did the post
+ unlockClients();
+ executeScheduledBroadcasts();
+ usleep(16667); // 60 fps period
+ }
+ return true;
+}
+
+void SurfaceFlinger::postFramebuffer()
+{
+ const bool skip = mOrientationAnimation->run();
+ if (UNLIKELY(skip)) {
+ return;
+ }
+
+ if (!mInvalidRegion.isEmpty()) {
+ const DisplayHardware& hw(graphicPlane(0).displayHardware());
+
+ if (UNLIKELY(mDebugFps)) {
+ debugShowFPS();
+ }
+
+ hw.flip(mInvalidRegion);
+
+ mInvalidRegion.clear();
+
+ if (Layer::deletedTextures.size()) {
+ glDeleteTextures(
+ Layer::deletedTextures.size(),
+ Layer::deletedTextures.array());
+ Layer::deletedTextures.clear();
+ }
+ }
+}
+
+void SurfaceFlinger::handleConsoleEvents()
+{
+ // something to do with the console
+ const DisplayHardware& hw = graphicPlane(0).displayHardware();
+
+ int what = android_atomic_and(0, &mConsoleSignals);
+ if (what & eConsoleAcquired) {
+ hw.acquireScreen();
+ }
+
+ if (mDeferReleaseConsole && hw.canDraw()) {
+ // We got the release signal before the aquire signal
+ mDeferReleaseConsole = false;
+ revokeGPU();
+ hw.releaseScreen();
+ }
+
+ if (what & eConsoleReleased) {
+ if (hw.canDraw()) {
+ revokeGPU();
+ hw.releaseScreen();
+ } else {
+ mDeferReleaseConsole = true;
+ }
+ }
+
+ mDirtyRegion.set(hw.bounds());
+}
+
+void SurfaceFlinger::handleTransaction(uint32_t transactionFlags)
+{
+ Mutex::Autolock _l(mStateLock);
+
+ const LayerVector& currentLayers = mCurrentState.layersSortedByZ;
+ const size_t count = currentLayers.size();
+
+ /*
+ * Traversal of the children
+ * (perform the transaction for each of them if needed)
+ */
+
+ const bool layersNeedTransaction = transactionFlags & eTraversalNeeded;
+ if (layersNeedTransaction) {
+ for (size_t i=0 ; i<count ; i++) {
+ LayerBase* const layer = currentLayers[i];
+ uint32_t trFlags = layer->getTransactionFlags(eTransactionNeeded);
+ if (!trFlags) continue;
+
+ const uint32_t flags = layer->doTransaction(0);
+ if (flags & Layer::eVisibleRegion)
+ mVisibleRegionsDirty = true;
+
+ if (flags & Layer::eRestartTransaction) {
+ // restart the transaction, but back-off a little
+ layer->setTransactionFlags(eTransactionNeeded);
+ setTransactionFlags(eTraversalNeeded, ms2ns(8));
+ }
+ }
+ }
+
+ /*
+ * Perform our own transaction if needed
+ */
+
+ if (transactionFlags & eTransactionNeeded) {
+ if (mCurrentState.orientation != mDrawingState.orientation) {
+ // the orientation has changed, recompute all visible regions
+ // and invalidate everything.
+
+ const int dpy = 0;
+ const int orientation = mCurrentState.orientation;
+ GraphicPlane& plane(graphicPlane(dpy));
+ plane.setOrientation(orientation);
+
+ // update the shared control block
+ const DisplayHardware& hw(plane.displayHardware());
+ volatile display_cblk_t* dcblk = mServerCblk->displays + dpy;
+ dcblk->orientation = orientation;
+ if (orientation & eOrientationSwapMask) {
+ // 90 or 270 degrees orientation
+ dcblk->w = hw.getHeight();
+ dcblk->h = hw.getWidth();
+ } else {
+ dcblk->w = hw.getWidth();
+ dcblk->h = hw.getHeight();
+ }
+
+ mVisibleRegionsDirty = true;
+ mDirtyRegion.set(hw.bounds());
+
+ mOrientationAnimation->onOrientationChanged();
+ }
+
+ if (mCurrentState.freezeDisplay != mDrawingState.freezeDisplay) {
+ // freezing or unfreezing the display -> trigger animation if needed
+ mFreezeDisplay = mCurrentState.freezeDisplay;
+ const nsecs_t now = systemTime();
+ if (mFreezeDisplay) {
+ mFreezeDisplayTime = now;
+ } else {
+ //LOGD("Screen was frozen for %llu us",
+ // ns2us(now-mFreezeDisplayTime));
+ }
+ }
+
+ // some layers might have been removed, so
+ // we need to update the regions they're exposing.
+ size_t c = mRemovedLayers.size();
+ if (c) {
+ mVisibleRegionsDirty = true;
+ }
+
+ const LayerVector& currentLayers = mCurrentState.layersSortedByZ;
+ if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) {
+ // layers have been added
+ mVisibleRegionsDirty = true;
+ }
+
+ // get rid of all resources we don't need anymore
+ // (layers and clients)
+ free_resources_l();
+ }
+
+ commitTransaction();
+}
+
+sp<FreezeLock> SurfaceFlinger::getFreezeLock() const
+{
+ return new FreezeLock(const_cast<SurfaceFlinger *>(this));
+}
+
+void SurfaceFlinger::computeVisibleRegions(
+ LayerVector& currentLayers, Region& dirtyRegion, Region& opaqueRegion)
+{
+ const GraphicPlane& plane(graphicPlane(0));
+ const Transform& planeTransform(plane.transform());
+
+ Region aboveOpaqueLayers;
+ Region aboveCoveredLayers;
+ Region dirty;
+
+ bool secureFrameBuffer = false;
+
+ size_t i = currentLayers.size();
+ while (i--) {
+ LayerBase* const layer = currentLayers[i];
+ layer->validateVisibility(planeTransform);
+
+ // start with the whole surface at its current location
+ const Layer::State& s = layer->drawingState();
+ const Rect bounds(layer->visibleBounds());
+
+ // handle hidden surfaces by setting the visible region to empty
+ Region opaqueRegion;
+ Region visibleRegion;
+ Region coveredRegion;
+ if (UNLIKELY((s.flags & ISurfaceComposer::eLayerHidden) || !s.alpha)) {
+ visibleRegion.clear();
+ } else {
+ const bool translucent = layer->needsBlending();
+ visibleRegion.set(bounds);
+ coveredRegion = visibleRegion;
+
+ // Remove the transparent area from the visible region
+ if (translucent) {
+ visibleRegion.subtractSelf(layer->transparentRegionScreen);
+ }
+
+ // compute the opaque region
+ if (s.alpha==255 && !translucent && layer->getOrientation()>=0) {
+ // the opaque region is the visible region
+ opaqueRegion = visibleRegion;
+ }
+ }
+
+ // subtract the opaque region covered by the layers above us
+ visibleRegion.subtractSelf(aboveOpaqueLayers);
+ coveredRegion.andSelf(aboveCoveredLayers);
+
+ // compute this layer's dirty region
+ if (layer->contentDirty) {
+ // we need to invalidate the whole region
+ dirty = visibleRegion;
+ // as well, as the old visible region
+ dirty.orSelf(layer->visibleRegionScreen);
+ layer->contentDirty = false;
+ } else {
+ // compute the exposed region
+ // dirty = what's visible now - what's wasn't covered before
+ // = what's visible now & what's was covered before
+ dirty = visibleRegion.intersect(layer->coveredRegionScreen);
+ }
+ dirty.subtractSelf(aboveOpaqueLayers);
+
+ // accumulate to the screen dirty region
+ dirtyRegion.orSelf(dirty);
+
+ // updade aboveOpaqueLayers/aboveCoveredLayers for next (lower) layer
+ aboveOpaqueLayers.orSelf(opaqueRegion);
+ aboveCoveredLayers.orSelf(bounds);
+
+ // Store the visible region is screen space
+ layer->setVisibleRegion(visibleRegion);
+ layer->setCoveredRegion(coveredRegion);
+
+ // If a secure layer is partially visible, lockdown the screen!
+ if (layer->isSecure() && !visibleRegion.isEmpty()) {
+ secureFrameBuffer = true;
+ }
+ }
+
+ mSecureFrameBuffer = secureFrameBuffer;
+ opaqueRegion = aboveOpaqueLayers;
+}
+
+
+void SurfaceFlinger::commitTransaction()
+{
+ mDrawingState = mCurrentState;
+ mTransactionCV.signal();
+}
+
+void SurfaceFlinger::handlePageFlip()
+{
+ bool visibleRegions = mVisibleRegionsDirty;
+ LayerVector& currentLayers = const_cast<LayerVector&>(mDrawingState.layersSortedByZ);
+ visibleRegions |= lockPageFlip(currentLayers);
+
+ const DisplayHardware& hw = graphicPlane(0).displayHardware();
+ const Region screenRegion(hw.bounds());
+ if (visibleRegions) {
+ Region opaqueRegion;
+ computeVisibleRegions(currentLayers, mDirtyRegion, opaqueRegion);
+ mWormholeRegion = screenRegion.subtract(opaqueRegion);
+ mVisibleRegionsDirty = false;
+ }
+
+ unlockPageFlip(currentLayers);
+ mDirtyRegion.andSelf(screenRegion);
+}
+
+bool SurfaceFlinger::lockPageFlip(const LayerVector& currentLayers)
+{
+ bool recomputeVisibleRegions = false;
+ size_t count = currentLayers.size();
+ LayerBase* const* layers = currentLayers.array();
+ for (size_t i=0 ; i<count ; i++) {
+ LayerBase* const layer = layers[i];
+ layer->lockPageFlip(recomputeVisibleRegions);
+ }
+ return recomputeVisibleRegions;
+}
+
+void SurfaceFlinger::unlockPageFlip(const LayerVector& currentLayers)
+{
+ const GraphicPlane& plane(graphicPlane(0));
+ const Transform& planeTransform(plane.transform());
+ size_t count = currentLayers.size();
+ LayerBase* const* layers = currentLayers.array();
+ for (size_t i=0 ; i<count ; i++) {
+ LayerBase* const layer = layers[i];
+ layer->unlockPageFlip(planeTransform, mDirtyRegion);
+ }
+}
+
+void SurfaceFlinger::handleRepaint()
+{
+ // set the frame buffer
+ const DisplayHardware& hw(graphicPlane(0).displayHardware());
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+
+ if (UNLIKELY(mDebugRegion)) {
+ debugFlashRegions();
+ }
+
+ // compute the invalid region
+ mInvalidRegion.orSelf(mDirtyRegion);
+
+ uint32_t flags = hw.getFlags();
+ if (flags & DisplayHardware::BUFFER_PRESERVED) {
+ // here we assume DisplayHardware::flip()'s implementation
+ // performs the copy-back optimization.
+ } else {
+ if (flags & DisplayHardware::UPDATE_ON_DEMAND) {
+ // we need to fully redraw the part that will be updated
+ mDirtyRegion.set(mInvalidRegion.bounds());
+ } else {
+ // we need to redraw everything
+ mDirtyRegion.set(hw.bounds());
+ mInvalidRegion = mDirtyRegion;
+ }
+ }
+
+ // compose all surfaces
+ composeSurfaces(mDirtyRegion);
+
+ // clear the dirty regions
+ mDirtyRegion.clear();
+}
+
+void SurfaceFlinger::composeSurfaces(const Region& dirty)
+{
+ if (UNLIKELY(!mWormholeRegion.isEmpty())) {
+ // should never happen unless the window manager has a bug
+ // draw something...
+ drawWormhole();
+ }
+ const SurfaceFlinger& flinger(*this);
+ const LayerVector& drawingLayers(mDrawingState.layersSortedByZ);
+ const size_t count = drawingLayers.size();
+ LayerBase const* const* const layers = drawingLayers.array();
+ for (size_t i=0 ; i<count ; ++i) {
+ LayerBase const * const layer = layers[i];
+ const Region& visibleRegion(layer->visibleRegionScreen);
+ if (!visibleRegion.isEmpty()) {
+ const Region clip(dirty.intersect(visibleRegion));
+ if (!clip.isEmpty()) {
+ layer->draw(clip);
+ }
+ }
+ }
+}
+
+void SurfaceFlinger::unlockClients()
+{
+ const LayerVector& drawingLayers(mDrawingState.layersSortedByZ);
+ const size_t count = drawingLayers.size();
+ LayerBase* const* const layers = drawingLayers.array();
+ for (size_t i=0 ; i<count ; ++i) {
+ LayerBase* const layer = layers[i];
+ layer->finishPageFlip();
+ }
+}
+
+void SurfaceFlinger::scheduleBroadcast(Client* client)
+{
+ if (mLastScheduledBroadcast != client) {
+ mLastScheduledBroadcast = client;
+ mScheduledBroadcasts.add(client);
+ }
+}
+
+void SurfaceFlinger::executeScheduledBroadcasts()
+{
+ SortedVector<Client*>& list = mScheduledBroadcasts;
+ size_t count = list.size();
+ while (count--) {
+ per_client_cblk_t* const cblk = list[count]->ctrlblk;
+ if (cblk->lock.tryLock() == NO_ERROR) {
+ cblk->cv.broadcast();
+ list.removeAt(count);
+ cblk->lock.unlock();
+ } else {
+ // schedule another round
+ LOGW("executeScheduledBroadcasts() skipped, "
+ "contention on the client. We'll try again later...");
+ signalDelayedEvent(ms2ns(4));
+ }
+ }
+ mLastScheduledBroadcast = 0;
+}
+
+void SurfaceFlinger::handleDebugCpu()
+{
+ Mutex::Autolock _l(mDebugLock);
+ if (mCpuGauge != 0)
+ mCpuGauge->sample();
+}
+
+void SurfaceFlinger::debugFlashRegions()
+{
+ if (UNLIKELY(!mDirtyRegion.isRect())) {
+ // TODO: do this only if we don't have preserving
+ // swapBuffer. If we don't have update-on-demand,
+ // redraw everything.
+ composeSurfaces(Region(mDirtyRegion.bounds()));
+ }
+
+ glDisable(GL_TEXTURE_2D);
+ glDisable(GL_BLEND);
+ glDisable(GL_DITHER);
+ glDisable(GL_SCISSOR_TEST);
+
+ glColor4x(0x10000, 0, 0x10000, 0x10000);
+
+ Rect r;
+ Region::iterator iterator(mDirtyRegion);
+ while (iterator.iterate(&r)) {
+ GLfloat vertices[][2] = {
+ { r.left, r.top },
+ { r.left, r.bottom },
+ { r.right, r.bottom },
+ { r.right, r.top }
+ };
+ glVertexPointer(2, GL_FLOAT, 0, vertices);
+ glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+ }
+
+ const DisplayHardware& hw(graphicPlane(0).displayHardware());
+ hw.flip(mDirtyRegion.merge(mInvalidRegion));
+ mInvalidRegion.clear();
+
+ if (mDebugRegion > 1)
+ usleep(mDebugRegion * 1000);
+
+ glEnable(GL_SCISSOR_TEST);
+ //mDirtyRegion.dump("mDirtyRegion");
+}
+
+void SurfaceFlinger::drawWormhole() const
+{
+ const Region region(mWormholeRegion.intersect(mDirtyRegion));
+ if (region.isEmpty())
+ return;
+
+ const DisplayHardware& hw(graphicPlane(0).displayHardware());
+ const int32_t width = hw.getWidth();
+ const int32_t height = hw.getHeight();
+
+ glDisable(GL_BLEND);
+ glDisable(GL_DITHER);
+
+ if (LIKELY(!mDebugBackground)) {
+ glClearColorx(0,0,0,0);
+ Rect r;
+ Region::iterator iterator(region);
+ while (iterator.iterate(&r)) {
+ const GLint sy = height - (r.top + r.height());
+ glScissor(r.left, sy, r.width(), r.height());
+ glClear(GL_COLOR_BUFFER_BIT);
+ }
+ } else {
+ const GLshort vertices[][2] = { { 0, 0 }, { width, 0 },
+ { width, height }, { 0, height } };
+ const GLshort tcoords[][2] = { { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } };
+ glVertexPointer(2, GL_SHORT, 0, vertices);
+ glTexCoordPointer(2, GL_SHORT, 0, tcoords);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+ glEnable(GL_TEXTURE_2D);
+ glBindTexture(GL_TEXTURE_2D, mWormholeTexName);
+ glTexEnvx(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+ glMatrixMode(GL_TEXTURE);
+ glLoadIdentity();
+ glScalef(width*(1.0f/32.0f), height*(1.0f/32.0f), 1);
+ Rect r;
+ Region::iterator iterator(region);
+ while (iterator.iterate(&r)) {
+ const GLint sy = height - (r.top + r.height());
+ glScissor(r.left, sy, r.width(), r.height());
+ glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+ }
+ glDisableClientState(GL_TEXTURE_COORD_ARRAY);
+ }
+}
+
+void SurfaceFlinger::debugShowFPS() const
+{
+ static int mFrameCount;
+ static int mLastFrameCount = 0;
+ static nsecs_t mLastFpsTime = 0;
+ static float mFps = 0;
+ mFrameCount++;
+ nsecs_t now = systemTime();
+ nsecs_t diff = now - mLastFpsTime;
+ if (diff > ms2ns(250)) {
+ mFps = ((mFrameCount - mLastFrameCount) * float(s2ns(1))) / diff;
+ mLastFpsTime = now;
+ mLastFrameCount = mFrameCount;
+ }
+ // XXX: mFPS has the value we want
+ }
+
+status_t SurfaceFlinger::addLayer(LayerBase* layer)
+{
+ Mutex::Autolock _l(mStateLock);
+ addLayer_l(layer);
+ setTransactionFlags(eTransactionNeeded|eTraversalNeeded);
+ return NO_ERROR;
+}
+
+status_t SurfaceFlinger::removeLayer(LayerBase* layer)
+{
+ Mutex::Autolock _l(mStateLock);
+ removeLayer_l(layer);
+ setTransactionFlags(eTransactionNeeded);
+ return NO_ERROR;
+}
+
+status_t SurfaceFlinger::invalidateLayerVisibility(LayerBase* layer)
+{
+ layer->forceVisibilityTransaction();
+ setTransactionFlags(eTraversalNeeded);
+ return NO_ERROR;
+}
+
+status_t SurfaceFlinger::addLayer_l(LayerBase* layer)
+{
+ ssize_t i = mCurrentState.layersSortedByZ.add(
+ layer, &LayerBase::compareCurrentStateZ);
+ LayerBaseClient* lbc = LayerBase::dynamicCast<LayerBaseClient*>(layer);
+ if (lbc) {
+ mLayerMap.add(lbc->serverIndex(), lbc);
+ }
+ mRemovedLayers.remove(layer);
+ return NO_ERROR;
+}
+
+status_t SurfaceFlinger::removeLayer_l(LayerBase* layerBase)
+{
+ ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase);
+ if (index >= 0) {
+ mRemovedLayers.add(layerBase);
+ LayerBaseClient* layer = LayerBase::dynamicCast<LayerBaseClient*>(layerBase);
+ if (layer) {
+ mLayerMap.removeItem(layer->serverIndex());
+ }
+ return NO_ERROR;
+ }
+ // it's possible that we don't find a layer, because it might
+ // have been destroyed already -- this is not technically an error
+ // from the user because there is a race between destroySurface,
+ // destroyclient and destroySurface-from-a-transaction.
+ return (index == NAME_NOT_FOUND) ? status_t(NO_ERROR) : index;
+}
+
+void SurfaceFlinger::free_resources_l()
+{
+ // Destroy layers that were removed
+ destroy_all_removed_layers_l();
+
+ // free resources associated with disconnected clients
+ SortedVector<Client*>& scheduledBroadcasts(mScheduledBroadcasts);
+ Vector<Client*>& disconnectedClients(mDisconnectedClients);
+ const size_t count = disconnectedClients.size();
+ for (size_t i=0 ; i<count ; i++) {
+ Client* client = disconnectedClients[i];
+ // if this client is the scheduled broadcast list,
+ // remove it from there (and we don't need to signal it
+ // since it is dead).
+ int32_t index = scheduledBroadcasts.indexOf(client);
+ if (index >= 0) {
+ scheduledBroadcasts.removeItemsAt(index);
+ }
+ mTokens.release(client->cid);
+ delete client;
+ }
+ disconnectedClients.clear();
+}
+
+void SurfaceFlinger::destroy_all_removed_layers_l()
+{
+ size_t c = mRemovedLayers.size();
+ while (c--) {
+ LayerBase* const removed_layer = mRemovedLayers[c];
+
+ LOGE_IF(mCurrentState.layersSortedByZ.indexOf(removed_layer) >= 0,
+ "layer %p removed but still in the current state list",
+ removed_layer);
+
+ delete removed_layer;
+ }
+ mRemovedLayers.clear();
+}
+
+
+uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags)
+{
+ return android_atomic_and(~flags, &mTransactionFlags) & flags;
+}
+
+uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags, nsecs_t delay)
+{
+ uint32_t old = android_atomic_or(flags, &mTransactionFlags);
+ if ((old & flags)==0) { // wake the server up
+ if (delay > 0) {
+ signalDelayedEvent(delay);
+ } else {
+ signalEvent();
+ }
+ }
+ return old;
+}
+
+void SurfaceFlinger::openGlobalTransaction()
+{
+ android_atomic_inc(&mTransactionCount);
+}
+
+void SurfaceFlinger::closeGlobalTransaction()
+{
+ if (android_atomic_dec(&mTransactionCount) == 1) {
+ signalEvent();
+ }
+}
+
+status_t SurfaceFlinger::freezeDisplay(DisplayID dpy, uint32_t flags)
+{
+ if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT))
+ return BAD_VALUE;
+
+ Mutex::Autolock _l(mStateLock);
+ mCurrentState.freezeDisplay = 1;
+ setTransactionFlags(eTransactionNeeded);
+
+ // flags is intended to communicate some sort of animation behavior
+ // (for instance fadding)
+ return NO_ERROR;
+}
+
+status_t SurfaceFlinger::unfreezeDisplay(DisplayID dpy, uint32_t flags)
+{
+ if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT))
+ return BAD_VALUE;
+
+ Mutex::Autolock _l(mStateLock);
+ mCurrentState.freezeDisplay = 0;
+ setTransactionFlags(eTransactionNeeded);
+
+ // flags is intended to communicate some sort of animation behavior
+ // (for instance fadding)
+ return NO_ERROR;
+}
+
+int SurfaceFlinger::setOrientation(DisplayID dpy, int orientation)
+{
+ if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT))
+ return BAD_VALUE;
+
+ Mutex::Autolock _l(mStateLock);
+ if (mCurrentState.orientation != orientation) {
+ if (uint32_t(orientation)<=eOrientation270 || orientation==42) {
+ mCurrentState.orientation = orientation;
+ setTransactionFlags(eTransactionNeeded);
+ mTransactionCV.wait(mStateLock);
+ } else {
+ orientation = BAD_VALUE;
+ }
+ }
+ return orientation;
+}
+
+sp<ISurface> SurfaceFlinger::createSurface(ClientID clientId, int pid,
+ ISurfaceFlingerClient::surface_data_t* params,
+ DisplayID d, uint32_t w, uint32_t h, PixelFormat format,
+ uint32_t flags)
+{
+ LayerBaseClient* layer = 0;
+ sp<LayerBaseClient::Surface> surfaceHandle;
+ Mutex::Autolock _l(mStateLock);
+ Client* const c = mClientsMap.valueFor(clientId);
+ if (UNLIKELY(!c)) {
+ LOGE("createSurface() failed, client not found (id=%d)", clientId);
+ return surfaceHandle;
+ }
+
+ //LOGD("createSurface for pid %d (%d x %d)", pid, w, h);
+ int32_t id = c->generateId(pid);
+ if (uint32_t(id) >= NUM_LAYERS_MAX) {
+ LOGE("createSurface() failed, generateId = %d", id);
+ return surfaceHandle;
+ }
+
+ switch (flags & eFXSurfaceMask) {
+ case eFXSurfaceNormal:
+ if (UNLIKELY(flags & ePushBuffers)) {
+ layer = createPushBuffersSurfaceLocked(c, d, id, w, h, flags);
+ } else {
+ layer = createNormalSurfaceLocked(c, d, id, w, h, format, flags);
+ }
+ break;
+ case eFXSurfaceBlur:
+ layer = createBlurSurfaceLocked(c, d, id, w, h, flags);
+ break;
+ case eFXSurfaceDim:
+ layer = createDimSurfaceLocked(c, d, id, w, h, flags);
+ break;
+ }
+
+ if (layer) {
+ setTransactionFlags(eTransactionNeeded);
+ surfaceHandle = layer->getSurface();
+ if (surfaceHandle != 0)
+ surfaceHandle->getSurfaceData(params);
+ }
+
+ return surfaceHandle;
+}
+
+LayerBaseClient* SurfaceFlinger::createNormalSurfaceLocked(
+ Client* client, DisplayID display,
+ int32_t id, uint32_t w, uint32_t h, PixelFormat format, uint32_t flags)
+{
+ // initialize the surfaces
+ switch (format) { // TODO: take h/w into account
+ case PIXEL_FORMAT_TRANSPARENT:
+ case PIXEL_FORMAT_TRANSLUCENT:
+ format = PIXEL_FORMAT_RGBA_8888;
+ break;
+ case PIXEL_FORMAT_OPAQUE:
+ format = PIXEL_FORMAT_RGB_565;
+ break;
+ }
+
+ Layer* layer = new Layer(this, display, client, id);
+ status_t err = layer->setBuffers(client, w, h, format, flags);
+ if (LIKELY(err == NO_ERROR)) {
+ layer->initStates(w, h, flags);
+ addLayer_l(layer);
+ } else {
+ LOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err));
+ delete layer;
+ return 0;
+ }
+ return layer;
+}
+
+LayerBaseClient* SurfaceFlinger::createBlurSurfaceLocked(
+ Client* client, DisplayID display,
+ int32_t id, uint32_t w, uint32_t h, uint32_t flags)
+{
+ LayerBlur* layer = new LayerBlur(this, display, client, id);
+ layer->initStates(w, h, flags);
+ addLayer_l(layer);
+ return layer;
+}
+
+LayerBaseClient* SurfaceFlinger::createDimSurfaceLocked(
+ Client* client, DisplayID display,
+ int32_t id, uint32_t w, uint32_t h, uint32_t flags)
+{
+ LayerDim* layer = new LayerDim(this, display, client, id);
+ layer->initStates(w, h, flags);
+ addLayer_l(layer);
+ return layer;
+}
+
+LayerBaseClient* SurfaceFlinger::createPushBuffersSurfaceLocked(
+ Client* client, DisplayID display,
+ int32_t id, uint32_t w, uint32_t h, uint32_t flags)
+{
+ LayerBuffer* layer = new LayerBuffer(this, display, client, id);
+ layer->initStates(w, h, flags);
+ addLayer_l(layer);
+ return layer;
+}
+
+status_t SurfaceFlinger::destroySurface(SurfaceID index)
+{
+ Mutex::Autolock _l(mStateLock);
+ LayerBaseClient* const layer = getLayerUser_l(index);
+ status_t err = removeLayer_l(layer);
+ if (err < 0)
+ return err;
+ setTransactionFlags(eTransactionNeeded);
+ return NO_ERROR;
+}
+
+status_t SurfaceFlinger::setClientState(
+ ClientID cid,
+ int32_t count,
+ const layer_state_t* states)
+{
+ Mutex::Autolock _l(mStateLock);
+ uint32_t flags = 0;
+ cid <<= 16;
+ for (int i=0 ; i<count ; i++) {
+ const layer_state_t& s = states[i];
+ LayerBaseClient* layer = getLayerUser_l(s.surface | cid);
+ if (layer) {
+ const uint32_t what = s.what;
+ // check if it has been destroyed first
+ if (what & eDestroyed) {
+ if (removeLayer_l(layer) == NO_ERROR) {
+ flags |= eTransactionNeeded;
+ // we skip everything else... well, no, not really
+ // we skip ONLY that transaction.
+ continue;
+ }
+ }
+ if (what & ePositionChanged) {
+ if (layer->setPosition(s.x, s.y))
+ flags |= eTraversalNeeded;
+ }
+ if (what & eLayerChanged) {
+ if (layer->setLayer(s.z)) {
+ mCurrentState.layersSortedByZ.reorder(
+ layer, &Layer::compareCurrentStateZ);
+ // we need traversal (state changed)
+ // AND transaction (list changed)
+ flags |= eTransactionNeeded|eTraversalNeeded;
+ }
+ }
+ if (what & eSizeChanged) {
+ if (layer->setSize(s.w, s.h))
+ flags |= eTraversalNeeded;
+ }
+ if (what & eAlphaChanged) {
+ if (layer->setAlpha(uint8_t(255.0f*s.alpha+0.5f)))
+ flags |= eTraversalNeeded;
+ }
+ if (what & eMatrixChanged) {
+ if (layer->setMatrix(s.matrix))
+ flags |= eTraversalNeeded;
+ }
+ if (what & eTransparentRegionChanged) {
+ if (layer->setTransparentRegionHint(s.transparentRegion))
+ flags |= eTraversalNeeded;
+ }
+ if (what & eVisibilityChanged) {
+ if (layer->setFlags(s.flags, s.mask))
+ flags |= eTraversalNeeded;
+ }
+ }
+ }
+ if (flags) {
+ setTransactionFlags(flags);
+ }
+ return NO_ERROR;
+}
+
+LayerBaseClient* SurfaceFlinger::getLayerUser_l(SurfaceID s) const
+{
+ return mLayerMap.valueFor(s);
+}
+
+void SurfaceFlinger::screenReleased(int dpy)
+{
+ // this may be called by a signal handler, we can't do too much in here
+ android_atomic_or(eConsoleReleased, &mConsoleSignals);
+ signalEvent();
+}
+
+void SurfaceFlinger::screenAcquired(int dpy)
+{
+ // this may be called by a signal handler, we can't do too much in here
+ android_atomic_or(eConsoleAcquired, &mConsoleSignals);
+ signalEvent();
+}
+
+status_t SurfaceFlinger::dump(int fd, const Vector<String16>& args)
+{
+ const size_t SIZE = 1024;
+ char buffer[SIZE];
+ String8 result;
+ if (checkCallingPermission(
+ String16("android.permission.DUMP")) == false)
+ { // not allowed
+ snprintf(buffer, SIZE, "Permission Denial: "
+ "can't dump SurfaceFlinger from pid=%d, uid=%d\n",
+ IPCThreadState::self()->getCallingPid(),
+ IPCThreadState::self()->getCallingUid());
+ result.append(buffer);
+ } else {
+ Mutex::Autolock _l(mStateLock);
+ size_t s = mClientsMap.size();
+ char name[64];
+ for (size_t i=0 ; i<s ; i++) {
+ Client* client = mClientsMap.valueAt(i);
+ sprintf(name, " Client (id=0x%08x)", client->cid);
+ client->dump(name);
+ }
+ const LayerVector& currentLayers = mCurrentState.layersSortedByZ;
+ const size_t count = currentLayers.size();
+ for (size_t i=0 ; i<count ; i++) {
+ /*** LayerBase ***/
+ LayerBase const * const layer = currentLayers[i];
+ const Layer::State& s = layer->drawingState();
+ snprintf(buffer, SIZE,
+ "+ %s %p\n"
+ " "
+ "z=%9d, pos=(%4d,%4d), size=(%4d,%4d), "
+ "needsBlending=%1d, invalidate=%1d, "
+ "alpha=0x%02x, flags=0x%08x, tr=[%.2f, %.2f][%.2f, %.2f]\n",
+ layer->getTypeID(), layer,
+ s.z, layer->tx(), layer->ty(), s.w, s.h,
+ layer->needsBlending(), layer->contentDirty,
+ s.alpha, s.flags,
+ s.transform[0], s.transform[1],
+ s.transform[2], s.transform[3]);
+ result.append(buffer);
+ buffer[0] = 0;
+ /*** LayerBaseClient ***/
+ LayerBaseClient* const lbc =
+ LayerBase::dynamicCast<LayerBaseClient*>((LayerBase*)layer);
+ if (lbc) {
+ snprintf(buffer, SIZE,
+ " "
+ "id=0x%08x, client=0x%08x, identity=%u\n",
+ lbc->clientIndex(), lbc->client ? lbc->client->cid : 0,
+ lbc->getIdentity());
+ }
+ result.append(buffer);
+ buffer[0] = 0;
+ /*** Layer ***/
+ Layer* const l = LayerBase::dynamicCast<Layer*>((LayerBase*)layer);
+ if (l) {
+ const LayerBitmap& buf0(l->getBuffer(0));
+ const LayerBitmap& buf1(l->getBuffer(1));
+ snprintf(buffer, SIZE,
+ " "
+ "format=%2d, [%3ux%3u:%3u] [%3ux%3u:%3u], mTextureName=%d,"
+ " freezeLock=%p, swapState=0x%08x\n",
+ l->pixelFormat(),
+ buf0.width(), buf0.height(), buf0.stride(),
+ buf1.width(), buf1.height(), buf1.stride(),
+ l->getTextureName(), l->getFreezeLock().get(),
+ l->lcblk->swapState);
+ }
+ result.append(buffer);
+ buffer[0] = 0;
+ s.transparentRegion.dump(result, "transparentRegion");
+ layer->transparentRegionScreen.dump(result, "transparentRegionScreen");
+ layer->visibleRegionScreen.dump(result, "visibleRegionScreen");
+ }
+ mWormholeRegion.dump(result, "WormholeRegion");
+ const DisplayHardware& hw(graphicPlane(0).displayHardware());
+ snprintf(buffer, SIZE,
+ " display frozen: %s, freezeCount=%d, orientation=%d, canDraw=%d\n",
+ mFreezeDisplay?"yes":"no", mFreezeCount,
+ mCurrentState.orientation, hw.canDraw());
+ result.append(buffer);
+
+ sp<AllocatorInterface> allocator;
+ if (mGPU != 0) {
+ snprintf(buffer, SIZE, " GPU owner: %d\n", mGPU->getOwner());
+ result.append(buffer);
+ allocator = mGPU->getAllocator();
+ if (allocator != 0) {
+ allocator->dump(result, "GPU Allocator");
+ }
+ }
+ allocator = mSurfaceHeapManager->getAllocator(NATIVE_MEMORY_TYPE_PMEM);
+ if (allocator != 0) {
+ allocator->dump(result, "PMEM Allocator");
+ }
+ }
+ write(fd, result.string(), result.size());
+ return NO_ERROR;
+}
+
+status_t SurfaceFlinger::onTransact(
+ uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+ switch (code) {
+ case CREATE_CONNECTION:
+ case OPEN_GLOBAL_TRANSACTION:
+ case CLOSE_GLOBAL_TRANSACTION:
+ case SET_ORIENTATION:
+ case FREEZE_DISPLAY:
+ case UNFREEZE_DISPLAY:
+ case BOOT_FINISHED:
+ case REVOKE_GPU:
+ {
+ // codes that require permission check
+ IPCThreadState* ipc = IPCThreadState::self();
+ const int pid = ipc->getCallingPid();
+ const int self_pid = getpid();
+ if (UNLIKELY(pid != self_pid)) {
+ // we're called from a different process, do the real check
+ if (!checkCallingPermission(
+ String16("android.permission.ACCESS_SURFACE_FLINGER")))
+ {
+ const int uid = ipc->getCallingUid();
+ LOGE("Permission Denial: "
+ "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid);
+ return PERMISSION_DENIED;
+ }
+ }
+ }
+ }
+
+ status_t err = BnSurfaceComposer::onTransact(code, data, reply, flags);
+ if (err == UNKNOWN_TRANSACTION || err == PERMISSION_DENIED) {
+ // HARDWARE_TEST stuff...
+ if (UNLIKELY(checkCallingPermission(
+ String16("android.permission.HARDWARE_TEST")) == false))
+ { // not allowed
+ LOGE("Permission Denial: pid=%d, uid=%d\n",
+ IPCThreadState::self()->getCallingPid(),
+ IPCThreadState::self()->getCallingUid());
+ return PERMISSION_DENIED;
+ }
+ int n;
+ switch (code) {
+ case 1000: // SHOW_CPU
+ n = data.readInt32();
+ mDebugCpu = n ? 1 : 0;
+ if (mDebugCpu) {
+ if (mCpuGauge == 0) {
+ mCpuGauge = new CPUGauge(this, ms2ns(500));
+ }
+ } else {
+ if (mCpuGauge != 0) {
+ mCpuGauge->requestExitAndWait();
+ Mutex::Autolock _l(mDebugLock);
+ mCpuGauge.clear();
+ }
+ }
+ return NO_ERROR;
+ case 1001: // SHOW_FPS
+ n = data.readInt32();
+ mDebugFps = n ? 1 : 0;
+ return NO_ERROR;
+ case 1002: // SHOW_UPDATES
+ n = data.readInt32();
+ mDebugRegion = n ? n : (mDebugRegion ? 0 : 1);
+ return NO_ERROR;
+ case 1003: // SHOW_BACKGROUND
+ n = data.readInt32();
+ mDebugBackground = n ? 1 : 0;
+ return NO_ERROR;
+ case 1004:{ // repaint everything
+ Mutex::Autolock _l(mStateLock);
+ const DisplayHardware& hw(graphicPlane(0).displayHardware());
+ mDirtyRegion.set(hw.bounds()); // careful that's not thread-safe
+ signalEvent();
+ }
+ return NO_ERROR;
+ case 1005: // ask GPU revoke
+ mGPU->friendlyRevoke();
+ return NO_ERROR;
+ case 1006: // revoke GPU
+ mGPU->unconditionalRevoke();
+ return NO_ERROR;
+ case 1007: // set mFreezeCount
+ mFreezeCount = data.readInt32();
+ return NO_ERROR;
+ case 1010: // interrogate.
+ reply->writeInt32(mDebugCpu);
+ reply->writeInt32(0);
+ reply->writeInt32(mDebugRegion);
+ reply->writeInt32(mDebugBackground);
+ return NO_ERROR;
+ case 1013: {
+ Mutex::Autolock _l(mStateLock);
+ const DisplayHardware& hw(graphicPlane(0).displayHardware());
+ reply->writeInt32(hw.getPageFlipCount());
+ }
+ return NO_ERROR;
+ }
+ }
+ return err;
+}
+
+// ---------------------------------------------------------------------------
+#if 0
+#pragma mark -
+#endif
+
+Client::Client(ClientID clientID, const sp<SurfaceFlinger>& flinger)
+ : ctrlblk(0), cid(clientID), mPid(0), mBitmap(0), mFlinger(flinger)
+{
+ mSharedHeapAllocator = getSurfaceHeapManager()->createHeap();
+ const int pgsize = getpagesize();
+ const int cblksize=((sizeof(per_client_cblk_t)+(pgsize-1))&~(pgsize-1));
+ mCblkHeap = new MemoryDealer(cblksize);
+ mCblkMemory = mCblkHeap->allocate(cblksize);
+ if (mCblkMemory != 0) {
+ ctrlblk = static_cast<per_client_cblk_t *>(mCblkMemory->pointer());
+ if (ctrlblk) { // construct the shared structure in-place.
+ new(ctrlblk) per_client_cblk_t;
+ }
+ }
+}
+
+Client::~Client() {
+ if (ctrlblk) {
+ const int pgsize = getpagesize();
+ ctrlblk->~per_client_cblk_t(); // destroy our shared-structure.
+ }
+}
+
+const sp<SurfaceHeapManager>& Client::getSurfaceHeapManager() const {
+ return mFlinger->getSurfaceHeapManager();
+}
+
+int32_t Client::generateId(int pid)
+{
+ const uint32_t i = clz( ~mBitmap );
+ if (i >= NUM_LAYERS_MAX) {
+ return NO_MEMORY;
+ }
+ mPid = pid;
+ mInUse.add(uint8_t(i));
+ mBitmap |= 1<<(31-i);
+ return i;
+}
+status_t Client::bindLayer(LayerBaseClient* layer, int32_t id)
+{
+ ssize_t idx = mInUse.indexOf(id);
+ if (idx < 0)
+ return NAME_NOT_FOUND;
+ return mLayers.insertAt(layer, idx);
+}
+void Client::free(int32_t id)
+{
+ ssize_t idx = mInUse.remove(uint8_t(id));
+ if (idx >= 0) {
+ mBitmap &= ~(1<<(31-id));
+ mLayers.removeItemsAt(idx);
+ }
+}
+
+sp<MemoryDealer> Client::createAllocator(uint32_t flags)
+{
+ sp<MemoryDealer> allocator;
+ allocator = getSurfaceHeapManager()->createHeap(
+ flags, getClientPid(), mSharedHeapAllocator);
+ return allocator;
+}
+
+bool Client::isValid(int32_t i) const {
+ return (uint32_t(i)<NUM_LAYERS_MAX) && (mBitmap & (1<<(31-i)));
+}
+const uint8_t* Client::inUseArray() const {
+ return mInUse.array();
+}
+size_t Client::numActiveLayers() const {
+ return mInUse.size();
+}
+LayerBaseClient* Client::getLayerUser(int32_t i) const {
+ ssize_t idx = mInUse.indexOf(uint8_t(i));
+ if (idx<0) return 0;
+ return mLayers[idx];
+}
+
+void Client::dump(const char* what)
+{
+}
+
+// ---------------------------------------------------------------------------
+#if 0
+#pragma mark -
+#endif
+
+BClient::BClient(SurfaceFlinger *flinger, ClientID cid, const sp<IMemory>& cblk)
+ : mId(cid), mFlinger(flinger), mCblk(cblk)
+{
+}
+
+BClient::~BClient() {
+ // destroy all resources attached to this client
+ mFlinger->destroyConnection(mId);
+}
+
+void BClient::getControlBlocks(sp<IMemory>* ctrl) const {
+ *ctrl = mCblk;
+}
+
+sp<ISurface> BClient::createSurface(
+ ISurfaceFlingerClient::surface_data_t* params, int pid,
+ DisplayID display, uint32_t w, uint32_t h, PixelFormat format,
+ uint32_t flags)
+{
+ return mFlinger->createSurface(mId, pid, params, display, w, h, format, flags);
+}
+
+status_t BClient::destroySurface(SurfaceID sid)
+{
+ sid |= (mId << 16); // add the client-part to id
+ return mFlinger->destroySurface(sid);
+}
+
+status_t BClient::setState(int32_t count, const layer_state_t* states)
+{
+ return mFlinger->setClientState(mId, count, states);
+}
+
+// ---------------------------------------------------------------------------
+
+GraphicPlane::GraphicPlane()
+ : mHw(0)
+{
+}
+
+GraphicPlane::~GraphicPlane() {
+ delete mHw;
+}
+
+bool GraphicPlane::initialized() const {
+ return mHw ? true : false;
+}
+
+void GraphicPlane::setDisplayHardware(DisplayHardware *hw) {
+ mHw = hw;
+}
+
+void GraphicPlane::setTransform(const Transform& tr) {
+ mTransform = tr;
+ mGlobalTransform = mOrientationTransform * mTransform;
+}
+
+status_t GraphicPlane::orientationToTransfrom(
+ int orientation, int w, int h, Transform* tr)
+{
+ float a, b, c, d, x, y;
+ switch (orientation) {
+ case ISurfaceComposer::eOrientationDefault:
+ a=1; b=0; c=0; d=1; x=0; y=0;
+ break;
+ case ISurfaceComposer::eOrientation90:
+ a=0; b=-1; c=1; d=0; x=w; y=0;
+ break;
+ case ISurfaceComposer::eOrientation180:
+ a=-1; b=0; c=0; d=-1; x=w; y=h;
+ break;
+ case ISurfaceComposer::eOrientation270:
+ a=0; b=1; c=-1; d=0; x=0; y=h;
+ break;
+ default:
+ return BAD_VALUE;
+ }
+ tr->set(a, b, c, d);
+ tr->set(x, y);
+ return NO_ERROR;
+}
+
+status_t GraphicPlane::setOrientation(int orientation)
+{
+ const DisplayHardware& hw(displayHardware());
+ const float w = hw.getWidth();
+ const float h = hw.getHeight();
+
+ if (orientation == ISurfaceComposer::eOrientationDefault) {
+ // make sure the default orientation is optimal
+ mOrientationTransform.reset();
+ mGlobalTransform = mTransform;
+ return NO_ERROR;
+ }
+
+ // If the rotation can be handled in hardware, this is where
+ // the magic should happen.
+ if (UNLIKELY(orientation == 42)) {
+ float a, b, c, d, x, y;
+ const float r = (3.14159265f / 180.0f) * 42.0f;
+ const float si = sinf(r);
+ const float co = cosf(r);
+ a=co; b=-si; c=si; d=co;
+ x = si*(h*0.5f) + (1-co)*(w*0.5f);
+ y =-si*(w*0.5f) + (1-co)*(h*0.5f);
+ mOrientationTransform.set(a, b, c, d);
+ mOrientationTransform.set(x, y);
+ } else {
+ GraphicPlane::orientationToTransfrom(orientation, w, h,
+ &mOrientationTransform);
+ }
+
+ mGlobalTransform = mOrientationTransform * mTransform;
+ return NO_ERROR;
+}
+
+const DisplayHardware& GraphicPlane::displayHardware() const {
+ return *mHw;
+}
+
+const Transform& GraphicPlane::transform() const {
+ return mGlobalTransform;
+}
+
+// ---------------------------------------------------------------------------
+
+}; // namespace android
generated by cgit v1.1 at 2024-05-23 11:02:21 +0000