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-rw-r--r--libs/surfaceflinger/SurfaceFlinger.cpp1940
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diff --git a/libs/surfaceflinger/SurfaceFlinger.cpp b/libs/surfaceflinger/SurfaceFlinger.cpp
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index 0722fda..0000000
--- a/libs/surfaceflinger/SurfaceFlinger.cpp
+++ /dev/null
@@ -1,1940 +0,0 @@
-/*
- * 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.
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <math.h>
-#include <limits.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-
-#include <cutils/log.h>
-#include <cutils/properties.h>
-
-#include <binder/IPCThreadState.h>
-#include <binder/IServiceManager.h>
-#include <binder/MemoryHeapBase.h>
-
-#include <utils/String8.h>
-#include <utils/String16.h>
-#include <utils/StopWatch.h>
-
-#include <ui/GraphicBufferAllocator.h>
-#include <ui/PixelFormat.h>
-
-#include <pixelflinger/pixelflinger.h>
-#include <GLES/gl.h>
-
-#include "clz.h"
-#include "Layer.h"
-#include "LayerBlur.h"
-#include "LayerBuffer.h"
-#include "LayerDim.h"
-#include "SurfaceFlinger.h"
-
-#include "DisplayHardware/DisplayHardware.h"
-
-/* ideally AID_GRAPHICS would be in a semi-public header
- * or there would be a way to map a user/group name to its id
- */
-#ifndef AID_GRAPHICS
-#define AID_GRAPHICS 1003
-#endif
-
-#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(
- const sp<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);
- LOGE_IF(layers[idx]!=key,
- "LayerVector[%p]: layers[%d]=%p, key=%p",
- this, int(idx), layers[idx].get(), key.get());
- return idx;
- }
- return i;
-}
-
-ssize_t SurfaceFlinger::LayerVector::add(
- const sp<LayerBase>& layer,
- Vector< sp<LayerBase> >::compar_t cmp)
-{
- size_t count = layers.size();
- ssize_t l = 0;
- ssize_t h = count-1;
- ssize_t mid;
- sp<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(const sp<LayerBase>& layer)
-{
- const ssize_t keyIndex = lookup.indexOfKey(layer);
- if (keyIndex >= 0) {
- const size_t index = lookup.valueAt(keyIndex);
- LOGE_IF(layers[index]!=layer,
- "LayerVector[%p]: layers[%u]=%p, layer=%p",
- this, int(index), layers[index].get(), layer.get());
- 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(
- const sp<LayerBase>& layer,
- Vector< sp<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),
- mResizeTransationPending(false),
- mLayersRemoved(false),
- mBootTime(systemTime()),
- mHardwareTest("android.permission.HARDWARE_TEST"),
- mAccessSurfaceFlinger("android.permission.ACCESS_SURFACE_FLINGER"),
- mDump("android.permission.DUMP"),
- mVisibleRegionsDirty(false),
- mDeferReleaseConsole(false),
- mFreezeDisplay(false),
- mFreezeCount(0),
- mFreezeDisplayTime(0),
- mDebugRegion(0),
- mDebugBackground(0),
- mDebugInSwapBuffers(0),
- mLastSwapBufferTime(0),
- mDebugInTransaction(0),
- mLastTransactionTime(0),
- mBootFinished(false),
- 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.showbackground", value, "0");
- mDebugBackground = atoi(value);
-
- LOGI_IF(mDebugRegion, "showupdates enabled");
- LOGI_IF(mDebugBackground, "showbackground enabled");
-}
-
-SurfaceFlinger::~SurfaceFlinger()
-{
- glDeleteTextures(1, &mWormholeTexName);
-}
-
-overlay_control_device_t* SurfaceFlinger::getOverlayEngine() const
-{
- return graphicPlane(0).displayHardware().getOverlayEngine();
-}
-
-sp<IMemoryHeap> SurfaceFlinger::getCblk() const
-{
- return mServerHeap;
-}
-
-sp<ISurfaceFlingerClient> SurfaceFlinger::createConnection()
-{
- Mutex::Autolock _l(mStateLock);
- uint32_t token = mTokens.acquire();
-
- sp<Client> client = new Client(token, this);
- if (client->ctrlblk == 0) {
- mTokens.release(token);
- return 0;
- }
- status_t err = mClientsMap.add(token, client);
- if (err < 0) {
- mTokens.release(token);
- return 0;
- }
- sp<BClient> bclient =
- new BClient(this, token, client->getControlBlockMemory());
- return bclient;
-}
-
-void SurfaceFlinger::destroyConnection(ClientID cid)
-{
- Mutex::Autolock _l(mStateLock);
- sp<Client> client = mClientsMap.valueFor(cid);
- if (client != 0) {
- // free all the layers this client owns
- Vector< wp<LayerBaseClient> > layers(client->getLayers());
- const size_t count = layers.size();
- for (size_t i=0 ; i<count ; i++) {
- sp<LayerBaseClient> layer(layers[i].promote());
- if (layer != 0) {
- purgatorizeLayer_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)) );
- mBootFinished = true;
- property_set("ctl.stop", "bootanim");
-}
-
-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;
-}
-
-status_t SurfaceFlinger::readyToRun()
-{
- LOGI( "SurfaceFlinger's main thread ready to run. "
- "Initializing graphics H/W...");
-
- // 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);
- }
-
- // create the shared control-block
- mServerHeap = new MemoryHeapBase(4096,
- MemoryHeapBase::READ_ONLY, "SurfaceFlinger read-only heap");
- LOGE_IF(mServerHeap==0, "can't create shared memory dealer");
-
- mServerCblk = static_cast<surface_flinger_cblk_t*>(mServerHeap->getBase());
- LOGE_IF(mServerCblk==0, "can't get to shared control block's address");
-
- new(mServerCblk) surface_flinger_cblk_t;
-
- // 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 = plane.getWidth();
- dcblk->h = plane.getHeight();
- 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...
- */
-
- // start boot animation
- property_set("ctl.start", "bootanim");
-
- return NO_ERROR;
-}
-
-// ----------------------------------------------------------------------------
-#if 0
-#pragma mark -
-#pragma mark Events Handler
-#endif
-
-void SurfaceFlinger::waitForEvent()
-{
- while (true) {
- nsecs_t timeout = -1;
- const nsecs_t freezeDisplayTimeout = ms2ns(5000);
- if (UNLIKELY(isFrozen())) {
- // wait 5 seconds
- const nsecs_t now = systemTime();
- if (mFreezeDisplayTime == 0) {
- mFreezeDisplayTime = now;
- }
- nsecs_t waitTime = freezeDisplayTimeout - (now - mFreezeDisplayTime);
- timeout = waitTime>0 ? waitTime : 0;
- }
-
- MessageList::value_type msg = mEventQueue.waitMessage(timeout);
-
- // see if we timed out
- if (isFrozen()) {
- const nsecs_t now = systemTime();
- nsecs_t frozenTime = (now - mFreezeDisplayTime);
- if (frozenTime >= freezeDisplayTimeout) {
- // we timed out and are still frozen
- LOGW("timeout expired mFreezeDisplay=%d, mFreezeCount=%d",
- mFreezeDisplay, mFreezeCount);
- mFreezeDisplayTime = 0;
- mFreezeCount = 0;
- mFreezeDisplay = false;
- }
- }
-
- if (msg != 0) {
- switch (msg->what) {
- case MessageQueue::INVALIDATE:
- // invalidate message, just return to the main loop
- return;
- }
- }
- }
-}
-
-void SurfaceFlinger::signalEvent() {
- mEventQueue.invalidate();
-}
-
-void SurfaceFlinger::signal() const {
- // this is the IPC call
- const_cast<SurfaceFlinger*>(this)->signalEvent();
-}
-
-void SurfaceFlinger::signalDelayedEvent(nsecs_t delay)
-{
- mEventQueue.postMessage( new MessageBase(MessageQueue::INVALIDATE), delay);
-}
-
-// ----------------------------------------------------------------------------
-#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() && !isFrozen())) {
- // repaint the framebuffer (if needed)
- handleRepaint();
-
- // inform the h/w that we're done compositing
- hw.compositionComplete();
-
- // release the clients before we flip ('cause flip might block)
- unlockClients();
-
- postFramebuffer();
- } else {
- // pretend we did the post
- unlockClients();
- usleep(16667); // 60 fps period
- }
- return true;
-}
-
-void SurfaceFlinger::postFramebuffer()
-{
- if (!mInvalidRegion.isEmpty()) {
- const DisplayHardware& hw(graphicPlane(0).displayHardware());
- const nsecs_t now = systemTime();
- mDebugInSwapBuffers = now;
- hw.flip(mInvalidRegion);
- mLastSwapBufferTime = systemTime() - now;
- mDebugInSwapBuffers = 0;
- mInvalidRegion.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 acquire signal
- mDeferReleaseConsole = false;
- hw.releaseScreen();
- }
-
- if (what & eConsoleReleased) {
- if (hw.canDraw()) {
- hw.releaseScreen();
- } else {
- mDeferReleaseConsole = true;
- }
- }
-
- mDirtyRegion.set(hw.bounds());
-}
-
-void SurfaceFlinger::handleTransaction(uint32_t transactionFlags)
-{
- Vector< sp<LayerBase> > ditchedLayers;
-
- { // scope for the lock
- Mutex::Autolock _l(mStateLock);
- const nsecs_t now = systemTime();
- mDebugInTransaction = now;
- handleTransactionLocked(transactionFlags, ditchedLayers);
- mLastTransactionTime = systemTime() - now;
- mDebugInTransaction = 0;
- }
-
- // do this without lock held
- const size_t count = ditchedLayers.size();
- for (size_t i=0 ; i<count ; i++) {
- if (ditchedLayers[i] != 0) {
- //LOGD("ditching layer %p", ditchedLayers[i].get());
- ditchedLayers[i]->ditch();
- }
- }
-}
-
-void SurfaceFlinger::handleTransactionLocked(
- uint32_t transactionFlags, Vector< sp<LayerBase> >& ditchedLayers)
-{
- 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++) {
- const sp<LayerBase>& 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;
- }
- }
-
- /*
- * 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;
- const uint32_t type = mCurrentState.orientationType;
- 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;
- dcblk->w = plane.getWidth();
- dcblk->h = plane.getHeight();
-
- mVisibleRegionsDirty = true;
- mDirtyRegion.set(hw.bounds());
- }
-
- if (mCurrentState.freezeDisplay != mDrawingState.freezeDisplay) {
- // freezing or unfreezing the display -> trigger animation if needed
- mFreezeDisplay = mCurrentState.freezeDisplay;
- if (mFreezeDisplay)
- mFreezeDisplayTime = 0;
- }
-
- if (currentLayers.size() > mDrawingState.layersSortedByZ.size()) {
- // layers have been added
- mVisibleRegionsDirty = true;
- }
-
- // some layers might have been removed, so
- // we need to update the regions they're exposing.
- if (mLayersRemoved) {
- mLayersRemoved = false;
- mVisibleRegionsDirty = true;
- const LayerVector& previousLayers(mDrawingState.layersSortedByZ);
- const size_t count = previousLayers.size();
- for (size_t i=0 ; i<count ; i++) {
- const sp<LayerBase>& layer(previousLayers[i]);
- if (currentLayers.indexOf( layer ) < 0) {
- // this layer is not visible anymore
- ditchedLayers.add(layer);
- mDirtyRegionRemovedLayer.orSelf(layer->visibleRegionScreen);
- }
- }
- }
-
- // 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());
- const DisplayHardware& hw(plane.displayHardware());
- const Region screenRegion(hw.bounds());
-
- Region aboveOpaqueLayers;
- Region aboveCoveredLayers;
- Region dirty;
-
- bool secureFrameBuffer = false;
-
- size_t i = currentLayers.size();
- while (i--) {
- const sp<LayerBase>& layer = currentLayers[i];
- layer->validateVisibility(planeTransform);
-
- // start with the whole surface at its current location
- const Layer::State& s(layer->drawingState());
-
- /*
- * opaqueRegion: area of a surface that is fully opaque.
- */
- Region opaqueRegion;
-
- /*
- * visibleRegion: area of a surface that is visible on screen
- * and not fully transparent. This is essentially the layer's
- * footprint minus the opaque regions above it.
- * Areas covered by a translucent surface are considered visible.
- */
- Region visibleRegion;
-
- /*
- * coveredRegion: area of a surface that is covered by all
- * visible regions above it (which includes the translucent areas).
- */
- Region coveredRegion;
-
-
- // handle hidden surfaces by setting the visible region to empty
- if (LIKELY(!(s.flags & ISurfaceComposer::eLayerHidden) && s.alpha)) {
- const bool translucent = layer->needsBlending();
- const Rect bounds(layer->visibleBounds());
- visibleRegion.set(bounds);
- visibleRegion.andSelf(screenRegion);
- if (!visibleRegion.isEmpty()) {
- // Remove the transparent area from the visible region
- if (translucent) {
- visibleRegion.subtractSelf(layer->transparentRegionScreen);
- }
-
- // compute the opaque region
- const int32_t layerOrientation = layer->getOrientation();
- if (s.alpha==255 && !translucent &&
- ((layerOrientation & Transform::ROT_INVALID) == false)) {
- // the opaque region is the layer's footprint
- opaqueRegion = visibleRegion;
- }
- }
- }
-
- // Clip the covered region to the visible region
- coveredRegion = aboveCoveredLayers.intersect(visibleRegion);
-
- // Update aboveCoveredLayers for next (lower) layer
- aboveCoveredLayers.orSelf(visibleRegion);
-
- // subtract the opaque region covered by the layers above us
- visibleRegion.subtractSelf(aboveOpaqueLayers);
-
- // 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:
- * the exposed region consists of two components:
- * 1) what's VISIBLE now and was COVERED before
- * 2) what's EXPOSED now less what was EXPOSED before
- *
- * note that (1) is conservative, we start with the whole
- * visible region but only keep what used to be covered by
- * something -- which mean it may have been exposed.
- *
- * (2) handles areas that were not covered by anything but got
- * exposed because of a resize.
- */
- const Region newExposed = visibleRegion - coveredRegion;
- const Region oldVisibleRegion = layer->visibleRegionScreen;
- const Region oldCoveredRegion = layer->coveredRegionScreen;
- const Region oldExposed = oldVisibleRegion - oldCoveredRegion;
- dirty = (visibleRegion&oldCoveredRegion) | (newExposed-oldExposed);
- }
- dirty.subtractSelf(aboveOpaqueLayers);
-
- // accumulate to the screen dirty region
- dirtyRegion.orSelf(dirty);
-
- // Update aboveOpaqueLayers for next (lower) layer
- aboveOpaqueLayers.orSelf(opaqueRegion);
-
- // Store the visible region is screen space
- layer->setVisibleRegion(visibleRegion);
- layer->setCoveredRegion(coveredRegion);
-
- // If a secure layer is partially visible, lock-down the screen!
- if (layer->isSecure() && !visibleRegion.isEmpty()) {
- secureFrameBuffer = true;
- }
- }
-
- // invalidate the areas where a layer was removed
- dirtyRegion.orSelf(mDirtyRegionRemovedLayer);
- mDirtyRegionRemovedLayer.clear();
-
- mSecureFrameBuffer = secureFrameBuffer;
- opaqueRegion = aboveOpaqueLayers;
-}
-
-
-void SurfaceFlinger::commitTransaction()
-{
- mDrawingState = mCurrentState;
- mResizeTransationPending = false;
- mTransactionCV.broadcast();
-}
-
-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();
- sp<LayerBase> const* layers = currentLayers.array();
- for (size_t i=0 ; i<count ; i++) {
- const sp<LayerBase>& 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();
- sp<LayerBase> const* layers = currentLayers.array();
- for (size_t i=0 ; i<count ; i++) {
- const sp<LayerBase>& layer = layers[i];
- layer->unlockPageFlip(planeTransform, mDirtyRegion);
- }
-}
-
-
-void SurfaceFlinger::handleRepaint()
-{
- // compute the invalid region
- mInvalidRegion.orSelf(mDirtyRegion);
- if (mInvalidRegion.isEmpty()) {
- // nothing to do
- return;
- }
-
- if (UNLIKELY(mDebugRegion)) {
- debugFlashRegions();
- }
-
- // set the frame buffer
- const DisplayHardware& hw(graphicPlane(0).displayHardware());
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-
- uint32_t flags = hw.getFlags();
- if ((flags & DisplayHardware::SWAP_RECTANGLE) ||
- (flags & DisplayHardware::BUFFER_PRESERVED))
- {
- // we can redraw only what's dirty, but since SWAP_RECTANGLE only
- // takes a rectangle, we must make sure to update that whole
- // rectangle in that case
- if (flags & DisplayHardware::SWAP_RECTANGLE) {
- // FIXME: we really should be able to pass a region to
- // SWAP_RECTANGLE so that we don't have to redraw all this.
- mDirtyRegion.set(mInvalidRegion.bounds());
- } else {
- // in the BUFFER_PRESERVED case, obviously, we can update only
- // what's needed and nothing more.
- // NOTE: this is NOT a common case, as preserving the backbuffer
- // is costly and usually involves copying the whole update back.
- }
- } else {
- if (flags & DisplayHardware::PARTIAL_UPDATES) {
- // We need to redraw the rectangle that will be updated
- // (pushed to the framebuffer).
- // This is needed because PARTIAL_UPDATES only takes one
- // rectangle instead of a region (see DisplayHardware::flip())
- mDirtyRegion.set(mInvalidRegion.bounds());
- } else {
- // we need to redraw everything (the whole screen)
- 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();
- sp<LayerBase> const* const layers = drawingLayers.array();
- for (size_t i=0 ; i<count ; ++i) {
- const sp<LayerBase>& 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();
- sp<LayerBase> const* const layers = drawingLayers.array();
- for (size_t i=0 ; i<count ; ++i) {
- const sp<LayerBase>& layer = layers[i];
- layer->finishPageFlip();
- }
-}
-
-void SurfaceFlinger::debugFlashRegions()
-{
- const DisplayHardware& hw(graphicPlane(0).displayHardware());
- const uint32_t flags = hw.getFlags();
-
- if (!((flags & DisplayHardware::SWAP_RECTANGLE) ||
- (flags & DisplayHardware::BUFFER_PRESERVED))) {
- const Region repaint((flags & DisplayHardware::PARTIAL_UPDATES) ?
- mDirtyRegion.bounds() : hw.bounds());
- composeSurfaces(repaint);
- }
-
- glDisable(GL_TEXTURE_2D);
- glDisable(GL_BLEND);
- glDisable(GL_DITHER);
- glDisable(GL_SCISSOR_TEST);
-
- static int toggle = 0;
- toggle = 1 - toggle;
- if (toggle) {
- glColor4x(0x10000, 0, 0x10000, 0x10000);
- } else {
- glColor4x(0x10000, 0x10000, 0, 0x10000);
- }
-
- Region::const_iterator it = mDirtyRegion.begin();
- Region::const_iterator const end = mDirtyRegion.end();
- while (it != end) {
- const Rect& r = *it++;
- 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);
- }
-
- if (mInvalidRegion.isEmpty()) {
- mDirtyRegion.dump("mDirtyRegion");
- mInvalidRegion.dump("mInvalidRegion");
- }
- hw.flip(mInvalidRegion);
-
- 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);
- Region::const_iterator it = region.begin();
- Region::const_iterator const end = region.end();
- while (it != end) {
- const Rect& r = *it++;
- 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);
- Region::const_iterator it = region.begin();
- Region::const_iterator const end = region.end();
- while (it != end) {
- const Rect& r = *it++;
- 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(const sp<LayerBase>& layer)
-{
- Mutex::Autolock _l(mStateLock);
- addLayer_l(layer);
- setTransactionFlags(eTransactionNeeded|eTraversalNeeded);
- return NO_ERROR;
-}
-
-status_t SurfaceFlinger::removeLayer(const sp<LayerBase>& layer)
-{
- Mutex::Autolock _l(mStateLock);
- status_t err = purgatorizeLayer_l(layer);
- if (err == NO_ERROR)
- setTransactionFlags(eTransactionNeeded);
- return err;
-}
-
-status_t SurfaceFlinger::invalidateLayerVisibility(const sp<LayerBase>& layer)
-{
- layer->forceVisibilityTransaction();
- setTransactionFlags(eTraversalNeeded);
- return NO_ERROR;
-}
-
-status_t SurfaceFlinger::addLayer_l(const sp<LayerBase>& layer)
-{
- if (layer == 0)
- return BAD_VALUE;
- ssize_t i = mCurrentState.layersSortedByZ.add(
- layer, &LayerBase::compareCurrentStateZ);
- sp<LayerBaseClient> lbc = LayerBase::dynamicCast< LayerBaseClient* >(layer.get());
- if (lbc != 0) {
- mLayerMap.add(lbc->serverIndex(), lbc);
- }
- return NO_ERROR;
-}
-
-status_t SurfaceFlinger::removeLayer_l(const sp<LayerBase>& layerBase)
-{
- ssize_t index = mCurrentState.layersSortedByZ.remove(layerBase);
- if (index >= 0) {
- mLayersRemoved = true;
- sp<LayerBaseClient> layer =
- LayerBase::dynamicCast< LayerBaseClient* >(layerBase.get());
- if (layer != 0) {
- mLayerMap.removeItem(layer->serverIndex());
- }
- return NO_ERROR;
- }
- return status_t(index);
-}
-
-status_t SurfaceFlinger::purgatorizeLayer_l(const sp<LayerBase>& layerBase)
-{
- // remove the layer from the main list (through a transaction).
- ssize_t err = removeLayer_l(layerBase);
-
- layerBase->onRemoved();
-
- // 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 BClient::destroySurface(),
- // ~BClient() and ~ISurface().
- return (err == NAME_NOT_FOUND) ? status_t(NO_ERROR) : err;
-}
-
-
-void SurfaceFlinger::free_resources_l()
-{
- // free resources associated with disconnected clients
- Vector< sp<Client> >& disconnectedClients(mDisconnectedClients);
- const size_t count = disconnectedClients.size();
- for (size_t i=0 ; i<count ; i++) {
- sp<Client> client = disconnectedClients[i];
- mTokens.release(client->cid);
- }
- disconnectedClients.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();
-
- // if there is a transaction with a resize, wait for it to
- // take effect before returning.
- Mutex::Autolock _l(mStateLock);
- while (mResizeTransationPending) {
- status_t err = mTransactionCV.waitRelative(mStateLock, s2ns(5));
- if (CC_UNLIKELY(err != NO_ERROR)) {
- // just in case something goes wrong in SF, return to the
- // called after a few seconds.
- LOGW_IF(err == TIMED_OUT, "closeGlobalTransaction timed out!");
- mResizeTransationPending = false;
- break;
- }
- }
- }
-}
-
-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 fading)
- 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 fading)
- return NO_ERROR;
-}
-
-int SurfaceFlinger::setOrientation(DisplayID dpy,
- int orientation, uint32_t flags)
-{
- 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.orientationType = flags;
- mCurrentState.orientation = orientation;
- setTransactionFlags(eTransactionNeeded);
- mTransactionCV.wait(mStateLock);
- } else {
- orientation = BAD_VALUE;
- }
- }
- return orientation;
-}
-
-sp<ISurface> SurfaceFlinger::createSurface(ClientID clientId, int pid,
- const String8& name, ISurfaceFlingerClient::surface_data_t* params,
- DisplayID d, uint32_t w, uint32_t h, PixelFormat format,
- uint32_t flags)
-{
- sp<LayerBaseClient> layer;
- sp<LayerBaseClient::Surface> surfaceHandle;
-
- if (int32_t(w|h) < 0) {
- LOGE("createSurface() failed, w or h is negative (w=%d, h=%d)",
- int(w), int(h));
- return surfaceHandle;
- }
-
- Mutex::Autolock _l(mStateLock);
- sp<Client> client = mClientsMap.valueFor(clientId);
- if (UNLIKELY(client == 0)) {
- 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 = client->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(client, d, id,
- w, h, flags);
- } else {
- layer = createNormalSurfaceLocked(client, d, id,
- w, h, flags, format);
- }
- break;
- case eFXSurfaceBlur:
- layer = createBlurSurfaceLocked(client, d, id, w, h, flags);
- break;
- case eFXSurfaceDim:
- layer = createDimSurfaceLocked(client, d, id, w, h, flags);
- break;
- }
-
- if (layer != 0) {
- layer->setName(name);
- setTransactionFlags(eTransactionNeeded);
- surfaceHandle = layer->getSurface();
- if (surfaceHandle != 0) {
- params->token = surfaceHandle->getToken();
- params->identity = surfaceHandle->getIdentity();
- params->width = w;
- params->height = h;
- params->format = format;
- }
- }
-
- return surfaceHandle;
-}
-
-sp<LayerBaseClient> SurfaceFlinger::createNormalSurfaceLocked(
- const sp<Client>& client, DisplayID display,
- int32_t id, uint32_t w, uint32_t h, uint32_t flags,
- PixelFormat& format)
-{
- // 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;
- }
-
- sp<Layer> layer = new Layer(this, display, client, id);
- status_t err = layer->setBuffers(w, h, format, flags);
- if (LIKELY(err == NO_ERROR)) {
- layer->initStates(w, h, flags);
- addLayer_l(layer);
- } else {
- LOGE("createNormalSurfaceLocked() failed (%s)", strerror(-err));
- layer.clear();
- }
- return layer;
-}
-
-sp<LayerBaseClient> SurfaceFlinger::createBlurSurfaceLocked(
- const sp<Client>& client, DisplayID display,
- int32_t id, uint32_t w, uint32_t h, uint32_t flags)
-{
- sp<LayerBlur> layer = new LayerBlur(this, display, client, id);
- layer->initStates(w, h, flags);
- addLayer_l(layer);
- return layer;
-}
-
-sp<LayerBaseClient> SurfaceFlinger::createDimSurfaceLocked(
- const sp<Client>& client, DisplayID display,
- int32_t id, uint32_t w, uint32_t h, uint32_t flags)
-{
- sp<LayerDim> layer = new LayerDim(this, display, client, id);
- layer->initStates(w, h, flags);
- addLayer_l(layer);
- return layer;
-}
-
-sp<LayerBaseClient> SurfaceFlinger::createPushBuffersSurfaceLocked(
- const sp<Client>& client, DisplayID display,
- int32_t id, uint32_t w, uint32_t h, uint32_t flags)
-{
- sp<LayerBuffer> layer = new LayerBuffer(this, display, client, id);
- layer->initStates(w, h, flags);
- addLayer_l(layer);
- return layer;
-}
-
-status_t SurfaceFlinger::removeSurface(SurfaceID index)
-{
- /*
- * called by the window manager, when a surface should be marked for
- * destruction.
- *
- * The surface is removed from the current and drawing lists, but placed
- * in the purgatory queue, so it's not destroyed right-away (we need
- * to wait for all client's references to go away first).
- */
-
- status_t err = NAME_NOT_FOUND;
- Mutex::Autolock _l(mStateLock);
- sp<LayerBaseClient> layer = getLayerUser_l(index);
- if (layer != 0) {
- err = purgatorizeLayer_l(layer);
- if (err == NO_ERROR) {
- setTransactionFlags(eTransactionNeeded);
- }
- }
- return err;
-}
-
-status_t SurfaceFlinger::destroySurface(const sp<LayerBaseClient>& layer)
-{
- // called by ~ISurface() when all references are gone
-
- class MessageDestroySurface : public MessageBase {
- SurfaceFlinger* flinger;
- sp<LayerBaseClient> layer;
- public:
- MessageDestroySurface(
- SurfaceFlinger* flinger, const sp<LayerBaseClient>& layer)
- : flinger(flinger), layer(layer) { }
- virtual bool handler() {
- sp<LayerBaseClient> l(layer);
- layer.clear(); // clear it outside of the lock;
- Mutex::Autolock _l(flinger->mStateLock);
- /*
- * remove the layer from the current list -- chances are that it's
- * not in the list anyway, because it should have been removed
- * already upon request of the client (eg: window manager).
- * However, a buggy client could have not done that.
- * Since we know we don't have any more clients, we don't need
- * to use the purgatory.
- */
- status_t err = flinger->removeLayer_l(l);
- LOGE_IF(err<0 && err != NAME_NOT_FOUND,
- "error removing layer=%p (%s)", l.get(), strerror(-err));
- return true;
- }
- };
-
- mEventQueue.postMessage( new MessageDestroySurface(this, layer) );
- 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];
- sp<LayerBaseClient> layer(getLayerUser_l(s.surface | cid));
- if (layer != 0) {
- const uint32_t what = s.what;
- 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;
- mResizeTransationPending = true;
- }
- }
- 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;
-}
-
-sp<LayerBaseClient> SurfaceFlinger::getLayerUser_l(SurfaceID s) const
-{
- sp<LayerBaseClient> layer = mLayerMap.valueFor(s);
- return layer;
-}
-
-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 (!mDump.checkCalling()) {
- 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 {
-
- // figure out if we're stuck somewhere
- const nsecs_t now = systemTime();
- const nsecs_t inSwapBuffers(mDebugInSwapBuffers);
- const nsecs_t inTransaction(mDebugInTransaction);
- nsecs_t inSwapBuffersDuration = (inSwapBuffers) ? now-inSwapBuffers : 0;
- nsecs_t inTransactionDuration = (inTransaction) ? now-inTransaction : 0;
-
- // Try to get the main lock, but don't insist if we can't
- // (this would indicate SF is stuck, but we want to be able to
- // print something in dumpsys).
- int retry = 3;
- while (mStateLock.tryLock()<0 && --retry>=0) {
- usleep(1000000);
- }
- const bool locked(retry >= 0);
- if (!locked) {
- snprintf(buffer, SIZE,
- "SurfaceFlinger appears to be unresponsive, "
- "dumping anyways (no locks held)\n");
- result.append(buffer);
- }
-
- size_t s = mClientsMap.size();
- char name[64];
- for (size_t i=0 ; i<s ; i++) {
- sp<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 ***/
- const sp<LayerBase>& 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, needsDithering=%1d, invalidate=%1d, "
- "alpha=0x%02x, flags=0x%08x, tr=[%.2f, %.2f][%.2f, %.2f]\n",
- layer->getTypeID(), layer.get(),
- s.z, layer->tx(), layer->ty(), s.w, s.h,
- layer->needsBlending(), layer->needsDithering(),
- layer->contentDirty,
- s.alpha, s.flags,
- s.transform[0][0], s.transform[0][1],
- s.transform[1][0], s.transform[1][1]);
- result.append(buffer);
- buffer[0] = 0;
- /*** LayerBaseClient ***/
- sp<LayerBaseClient> lbc =
- LayerBase::dynamicCast< LayerBaseClient* >(layer.get());
- if (lbc != 0) {
- sp<Client> client(lbc->client.promote());
- snprintf(buffer, SIZE,
- " name=%s\n", lbc->getName().string());
- result.append(buffer);
- snprintf(buffer, SIZE,
- " id=0x%08x, client=0x%08x, identity=%u\n",
- lbc->clientIndex(), client.get() ? client->cid : 0,
- lbc->getIdentity());
-
- result.append(buffer);
- buffer[0] = 0;
- }
- /*** Layer ***/
- sp<Layer> l = LayerBase::dynamicCast< Layer* >(layer.get());
- if (l != 0) {
- SharedBufferStack::Statistics stats = l->lcblk->getStats();
- result.append( l->lcblk->dump(" ") );
- sp<const GraphicBuffer> buf0(l->getBuffer(0));
- sp<const GraphicBuffer> buf1(l->getBuffer(1));
- uint32_t w0=0, h0=0, s0=0;
- uint32_t w1=0, h1=0, s1=0;
- if (buf0 != 0) {
- w0 = buf0->getWidth();
- h0 = buf0->getHeight();
- s0 = buf0->getStride();
- }
- if (buf1 != 0) {
- w1 = buf1->getWidth();
- h1 = buf1->getHeight();
- s1 = buf1->getStride();
- }
- snprintf(buffer, SIZE,
- " "
- "format=%2d, [%3ux%3u:%3u] [%3ux%3u:%3u],"
- " freezeLock=%p, dq-q-time=%u us\n",
- l->pixelFormat(),
- w0, h0, s0, w1, h1, s1,
- l->getFreezeLock().get(), stats.totalTime);
- 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);
- snprintf(buffer, SIZE,
- " last eglSwapBuffers() time: %f us\n"
- " last transaction time : %f us\n",
- mLastSwapBufferTime/1000.0, mLastTransactionTime/1000.0);
- result.append(buffer);
- if (inSwapBuffersDuration || !locked) {
- snprintf(buffer, SIZE, " eglSwapBuffers time: %f us\n",
- inSwapBuffersDuration/1000.0);
- result.append(buffer);
- }
- if (inTransactionDuration || !locked) {
- snprintf(buffer, SIZE, " transaction time: %f us\n",
- inTransactionDuration/1000.0);
- result.append(buffer);
- }
- snprintf(buffer, SIZE, " client count: %d\n", mClientsMap.size());
- result.append(buffer);
- const GraphicBufferAllocator& alloc(GraphicBufferAllocator::get());
- alloc.dump(result);
-
- if (locked) {
- mStateLock.unlock();
- }
- }
- 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:
- {
- // codes that require permission check
- IPCThreadState* ipc = IPCThreadState::self();
- const int pid = ipc->getCallingPid();
- const int uid = ipc->getCallingUid();
- if ((uid != AID_GRAPHICS) && !mAccessSurfaceFlinger.check(pid, uid)) {
- 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) {
- CHECK_INTERFACE(ISurfaceComposer, data, reply);
- if (UNLIKELY(!mHardwareTest.checkCalling())) {
- IPCThreadState* ipc = IPCThreadState::self();
- const int pid = ipc->getCallingPid();
- const int uid = ipc->getCallingUid();
- LOGE("Permission Denial: "
- "can't access SurfaceFlinger pid=%d, uid=%d", pid, uid);
- return PERMISSION_DENIED;
- }
- int n;
- switch (code) {
- case 1000: // SHOW_CPU, NOT SUPPORTED ANYMORE
- return NO_ERROR;
- case 1001: // SHOW_FPS, NOT SUPPORTED ANYMORE
- 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:{ // force transaction
- setTransactionFlags(eTransactionNeeded|eTraversalNeeded);
- return NO_ERROR;
- }
- case 1007: // set mFreezeCount
- mFreezeCount = data.readInt32();
- mFreezeDisplayTime = 0;
- return NO_ERROR;
- case 1010: // interrogate.
- reply->writeInt32(0);
- 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)
-{
- const int pgsize = getpagesize();
- const int cblksize = ((sizeof(SharedClient)+(pgsize-1))&~(pgsize-1));
-
- mCblkHeap = new MemoryHeapBase(cblksize, 0,
- "SurfaceFlinger Client control-block");
-
- ctrlblk = static_cast<SharedClient *>(mCblkHeap->getBase());
- if (ctrlblk) { // construct the shared structure in-place.
- new(ctrlblk) SharedClient;
- }
-}
-
-Client::~Client() {
- if (ctrlblk) {
- ctrlblk->~SharedClient(); // destroy our shared-structure.
- }
-}
-
-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(const sp<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);
- }
-}
-
-bool Client::isValid(int32_t i) const {
- return (uint32_t(i)<NUM_LAYERS_MAX) && (mBitmap & (1<<(31-i)));
-}
-
-sp<LayerBaseClient> Client::getLayerUser(int32_t i) const {
- sp<LayerBaseClient> lbc;
- ssize_t idx = mInUse.indexOf(uint8_t(i));
- if (idx >= 0) {
- lbc = mLayers[idx].promote();
- LOGE_IF(lbc==0, "getLayerUser(i=%d), idx=%d is dead", int(i), int(idx));
- }
- return lbc;
-}
-
-void Client::dump(const char* what)
-{
-}
-
-// ---------------------------------------------------------------------------
-#if 0
-#pragma mark -
-#endif
-
-BClient::BClient(SurfaceFlinger *flinger, ClientID cid, const sp<IMemoryHeap>& cblk)
- : mId(cid), mFlinger(flinger), mCblk(cblk)
-{
-}
-
-BClient::~BClient() {
- // destroy all resources attached to this client
- mFlinger->destroyConnection(mId);
-}
-
-sp<IMemoryHeap> BClient::getControlBlock() const {
- return mCblk;
-}
-
-sp<ISurface> BClient::createSurface(
- ISurfaceFlingerClient::surface_data_t* params, int pid,
- const String8& name,
- DisplayID display, uint32_t w, uint32_t h, PixelFormat format,
- uint32_t flags)
-{
- return mFlinger->createSurface(mId, pid, name, params, display, w, h,
- format, flags);
-}
-
-status_t BClient::destroySurface(SurfaceID sid)
-{
- sid |= (mId << 16); // add the client-part to id
- return mFlinger->removeSurface(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;
-}
-
-int GraphicPlane::getWidth() const {
- return mWidth;
-}
-
-int GraphicPlane::getHeight() const {
- return mHeight;
-}
-
-void GraphicPlane::setDisplayHardware(DisplayHardware *hw)
-{
- mHw = hw;
-
- // initialize the display orientation transform.
- // it's a constant that should come from the display driver.
- int displayOrientation = ISurfaceComposer::eOrientationDefault;
- char property[PROPERTY_VALUE_MAX];
- if (property_get("ro.sf.hwrotation", property, NULL) > 0) {
- //displayOrientation
- switch (atoi(property)) {
- case 90:
- displayOrientation = ISurfaceComposer::eOrientation90;
- break;
- case 270:
- displayOrientation = ISurfaceComposer::eOrientation270;
- break;
- }
- }
-
- const float w = hw->getWidth();
- const float h = hw->getHeight();
- GraphicPlane::orientationToTransfrom(displayOrientation, w, h,
- &mDisplayTransform);
- if (displayOrientation & ISurfaceComposer::eOrientationSwapMask) {
- mDisplayWidth = h;
- mDisplayHeight = w;
- } else {
- mDisplayWidth = w;
- mDisplayHeight = h;
- }
-
- setOrientation(ISurfaceComposer::eOrientationDefault);
-}
-
-status_t GraphicPlane::orientationToTransfrom(
- int orientation, int w, int h, Transform* tr)
-{
- uint32_t flags = 0;
- switch (orientation) {
- case ISurfaceComposer::eOrientationDefault:
- flags = Transform::ROT_0;
- break;
- case ISurfaceComposer::eOrientation90:
- flags = Transform::ROT_90;
- break;
- case ISurfaceComposer::eOrientation180:
- flags = Transform::ROT_180;
- break;
- case ISurfaceComposer::eOrientation270:
- flags = Transform::ROT_270;
- break;
- default:
- return BAD_VALUE;
- }
- tr->set(flags, w, h);
- return NO_ERROR;
-}
-
-status_t GraphicPlane::setOrientation(int orientation)
-{
- // If the rotation can be handled in hardware, this is where
- // the magic should happen.
-
- const DisplayHardware& hw(displayHardware());
- const float w = mDisplayWidth;
- const float h = mDisplayHeight;
- mWidth = int(w);
- mHeight = int(h);
-
- Transform orientationTransform;
- GraphicPlane::orientationToTransfrom(orientation, w, h,
- &orientationTransform);
- if (orientation & ISurfaceComposer::eOrientationSwapMask) {
- mWidth = int(h);
- mHeight = int(w);
- }
-
- mOrientation = orientation;
- mGlobalTransform = mDisplayTransform * orientationTransform;
- return NO_ERROR;
-}
-
-const DisplayHardware& GraphicPlane::displayHardware() const {
- return *mHw;
-}
-
-const Transform& GraphicPlane::transform() const {
- return mGlobalTransform;
-}
-
-EGLDisplay GraphicPlane::getEGLDisplay() const {
- return mHw->getEGLDisplay();
-}
-
-// ---------------------------------------------------------------------------
-
-}; // namespace android
generated by cgit v1.1 at 2025-08-15 14:51:28 +0000