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-rw-r--r--libs/ui/SurfaceComposerClient.cpp620
1 files changed, 0 insertions, 620 deletions
diff --git a/libs/ui/SurfaceComposerClient.cpp b/libs/ui/SurfaceComposerClient.cpp
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index eda84ef..0000000
--- a/libs/ui/SurfaceComposerClient.cpp
+++ /dev/null
@@ -1,620 +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.
- */
-
-#define LOG_TAG "SurfaceComposerClient"
-
-#include <stdint.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#include <cutils/memory.h>
-
-#include <utils/Atomic.h>
-#include <utils/Errors.h>
-#include <utils/threads.h>
-#include <utils/KeyedVector.h>
-#include <binder/IServiceManager.h>
-#include <binder/IMemory.h>
-#include <utils/Log.h>
-
-#include <ui/DisplayInfo.h>
-#include <ui/ISurfaceComposer.h>
-#include <ui/ISurfaceFlingerClient.h>
-#include <ui/ISurface.h>
-#include <ui/SurfaceComposerClient.h>
-#include <ui/Rect.h>
-
-#include <private/ui/LayerState.h>
-#include <private/ui/SharedBufferStack.h>
-
-#define VERBOSE(...) ((void)0)
-//#define VERBOSE LOGD
-
-#define LIKELY( exp ) (__builtin_expect( (exp) != 0, true ))
-#define UNLIKELY( exp ) (__builtin_expect( (exp) != 0, false ))
-
-namespace android {
-
-// ---------------------------------------------------------------------------
-
-// Must not be holding SurfaceComposerClient::mLock when acquiring gLock here.
-static Mutex gLock;
-static sp<ISurfaceComposer> gSurfaceManager;
-static DefaultKeyedVector< sp<IBinder>, sp<SurfaceComposerClient> > gActiveConnections;
-static SortedVector<sp<SurfaceComposerClient> > gOpenTransactions;
-static sp<IMemoryHeap> gServerCblkMemory;
-static volatile surface_flinger_cblk_t* gServerCblk;
-
-static sp<ISurfaceComposer> getComposerService()
-{
- sp<ISurfaceComposer> sc;
- Mutex::Autolock _l(gLock);
- if (gSurfaceManager != 0) {
- sc = gSurfaceManager;
- } else {
- // release the lock while we're waiting...
- gLock.unlock();
-
- sp<IBinder> binder;
- sp<IServiceManager> sm = defaultServiceManager();
- do {
- binder = sm->getService(String16("SurfaceFlinger"));
- if (binder == 0) {
- LOGW("SurfaceFlinger not published, waiting...");
- usleep(500000); // 0.5 s
- }
- } while(binder == 0);
-
- // grab the lock again for updating gSurfaceManager
- gLock.lock();
- if (gSurfaceManager == 0) {
- sc = interface_cast<ISurfaceComposer>(binder);
- gSurfaceManager = sc;
- } else {
- sc = gSurfaceManager;
- }
- }
- return sc;
-}
-
-static volatile surface_flinger_cblk_t const * get_cblk()
-{
- if (gServerCblk == 0) {
- sp<ISurfaceComposer> sm(getComposerService());
- Mutex::Autolock _l(gLock);
- if (gServerCblk == 0) {
- gServerCblkMemory = sm->getCblk();
- LOGE_IF(gServerCblkMemory==0, "Can't get server control block");
- gServerCblk = (surface_flinger_cblk_t *)gServerCblkMemory->getBase();
- LOGE_IF(gServerCblk==0, "Can't get server control block address");
- }
- }
- return gServerCblk;
-}
-
-// ---------------------------------------------------------------------------
-
-static inline int compare_type( const layer_state_t& lhs,
- const layer_state_t& rhs) {
- if (lhs.surface < rhs.surface) return -1;
- if (lhs.surface > rhs.surface) return 1;
- return 0;
-}
-
-SurfaceComposerClient::SurfaceComposerClient()
-{
- sp<ISurfaceComposer> sm(getComposerService());
- if (sm == 0) {
- _init(0, 0);
- return;
- }
-
- _init(sm, sm->createConnection());
-
- if (mClient != 0) {
- Mutex::Autolock _l(gLock);
- VERBOSE("Adding client %p to map", this);
- gActiveConnections.add(mClient->asBinder(), this);
- }
-}
-
-SurfaceComposerClient::SurfaceComposerClient(
- const sp<ISurfaceComposer>& sm, const sp<IBinder>& conn)
-{
- _init(sm, interface_cast<ISurfaceFlingerClient>(conn));
-}
-
-
-status_t SurfaceComposerClient::linkToComposerDeath(
- const sp<IBinder::DeathRecipient>& recipient,
- void* cookie, uint32_t flags)
-{
- sp<ISurfaceComposer> sm(getComposerService());
- return sm->asBinder()->linkToDeath(recipient, cookie, flags);
-}
-
-void SurfaceComposerClient::_init(
- const sp<ISurfaceComposer>& sm, const sp<ISurfaceFlingerClient>& conn)
-{
- VERBOSE("Creating client %p, conn %p", this, conn.get());
-
- mPrebuiltLayerState = 0;
- mTransactionOpen = 0;
- mStatus = NO_ERROR;
- mControl = 0;
-
- mClient = conn;
- if (mClient == 0) {
- mStatus = NO_INIT;
- return;
- }
-
- mControlMemory = mClient->getControlBlock();
- mSignalServer = sm;
- mControl = static_cast<SharedClient *>(mControlMemory->getBase());
-}
-
-SurfaceComposerClient::~SurfaceComposerClient()
-{
- VERBOSE("Destroying client %p, conn %p", this, mClient.get());
- dispose();
-}
-
-status_t SurfaceComposerClient::initCheck() const
-{
- return mStatus;
-}
-
-sp<IBinder> SurfaceComposerClient::connection() const
-{
- return (mClient != 0) ? mClient->asBinder() : 0;
-}
-
-sp<SurfaceComposerClient>
-SurfaceComposerClient::clientForConnection(const sp<IBinder>& conn)
-{
- sp<SurfaceComposerClient> client;
-
- { // scope for lock
- Mutex::Autolock _l(gLock);
- client = gActiveConnections.valueFor(conn);
- }
-
- if (client == 0) {
- // Need to make a new client.
- sp<ISurfaceComposer> sm(getComposerService());
- client = new SurfaceComposerClient(sm, conn);
- if (client != 0 && client->initCheck() == NO_ERROR) {
- Mutex::Autolock _l(gLock);
- gActiveConnections.add(conn, client);
- //LOGD("we have %d connections", gActiveConnections.size());
- } else {
- client.clear();
- }
- }
-
- return client;
-}
-
-void SurfaceComposerClient::dispose()
-{
- // this can be called more than once.
-
- sp<IMemoryHeap> controlMemory;
- sp<ISurfaceFlingerClient> client;
-
- {
- Mutex::Autolock _lg(gLock);
- Mutex::Autolock _lm(mLock);
-
- mSignalServer = 0;
-
- if (mClient != 0) {
- client = mClient;
- mClient.clear();
-
- ssize_t i = gActiveConnections.indexOfKey(client->asBinder());
- if (i >= 0 && gActiveConnections.valueAt(i) == this) {
- VERBOSE("Removing client %p from map at %d", this, int(i));
- gActiveConnections.removeItemsAt(i);
- }
- }
-
- delete mPrebuiltLayerState;
- mPrebuiltLayerState = 0;
- controlMemory = mControlMemory;
- mControlMemory.clear();
- mControl = 0;
- mStatus = NO_INIT;
- }
-}
-
-status_t SurfaceComposerClient::getDisplayInfo(
- DisplayID dpy, DisplayInfo* info)
-{
- if (uint32_t(dpy)>=NUM_DISPLAY_MAX)
- return BAD_VALUE;
-
- volatile surface_flinger_cblk_t const * cblk = get_cblk();
- volatile display_cblk_t const * dcblk = cblk->displays + dpy;
-
- info->w = dcblk->w;
- info->h = dcblk->h;
- info->orientation = dcblk->orientation;
- info->xdpi = dcblk->xdpi;
- info->ydpi = dcblk->ydpi;
- info->fps = dcblk->fps;
- info->density = dcblk->density;
- return getPixelFormatInfo(dcblk->format, &(info->pixelFormatInfo));
-}
-
-ssize_t SurfaceComposerClient::getDisplayWidth(DisplayID dpy)
-{
- if (uint32_t(dpy)>=NUM_DISPLAY_MAX)
- return BAD_VALUE;
- volatile surface_flinger_cblk_t const * cblk = get_cblk();
- volatile display_cblk_t const * dcblk = cblk->displays + dpy;
- return dcblk->w;
-}
-
-ssize_t SurfaceComposerClient::getDisplayHeight(DisplayID dpy)
-{
- if (uint32_t(dpy)>=NUM_DISPLAY_MAX)
- return BAD_VALUE;
- volatile surface_flinger_cblk_t const * cblk = get_cblk();
- volatile display_cblk_t const * dcblk = cblk->displays + dpy;
- return dcblk->h;
-}
-
-ssize_t SurfaceComposerClient::getDisplayOrientation(DisplayID dpy)
-{
- if (uint32_t(dpy)>=NUM_DISPLAY_MAX)
- return BAD_VALUE;
- volatile surface_flinger_cblk_t const * cblk = get_cblk();
- volatile display_cblk_t const * dcblk = cblk->displays + dpy;
- return dcblk->orientation;
-}
-
-ssize_t SurfaceComposerClient::getNumberOfDisplays()
-{
- volatile surface_flinger_cblk_t const * cblk = get_cblk();
- uint32_t connected = cblk->connected;
- int n = 0;
- while (connected) {
- if (connected&1) n++;
- connected >>= 1;
- }
- return n;
-}
-
-
-void SurfaceComposerClient::signalServer()
-{
- mSignalServer->signal();
-}
-
-sp<SurfaceControl> SurfaceComposerClient::createSurface(
- int pid,
- DisplayID display,
- uint32_t w,
- uint32_t h,
- PixelFormat format,
- uint32_t flags)
-{
- sp<SurfaceControl> result;
- if (mStatus == NO_ERROR) {
- ISurfaceFlingerClient::surface_data_t data;
- sp<ISurface> surface = mClient->createSurface(&data, pid,
- display, w, h, format, flags);
- if (surface != 0) {
- if (uint32_t(data.token) < NUM_LAYERS_MAX) {
- result = new SurfaceControl(this, surface, data, w, h, format, flags);
- }
- }
- }
- return result;
-}
-
-status_t SurfaceComposerClient::destroySurface(SurfaceID sid)
-{
- if (mStatus != NO_ERROR)
- return mStatus;
-
- // it's okay to destroy a surface while a transaction is open,
- // (transactions really are a client-side concept)
- // however, this indicates probably a misuse of the API or a bug
- // in the client code.
- LOGW_IF(mTransactionOpen,
- "Destroying surface while a transaction is open. "
- "Client %p: destroying surface %d, mTransactionOpen=%d",
- this, sid, mTransactionOpen);
-
- status_t err = mClient->destroySurface(sid);
- return err;
-}
-
-void SurfaceComposerClient::openGlobalTransaction()
-{
- Mutex::Autolock _l(gLock);
-
- if (gOpenTransactions.size()) {
- LOGE("openGlobalTransaction() called more than once. skipping.");
- return;
- }
-
- const size_t N = gActiveConnections.size();
- VERBOSE("openGlobalTransaction (%ld clients)", N);
- for (size_t i=0; i<N; i++) {
- sp<SurfaceComposerClient> client(gActiveConnections.valueAt(i));
- if (gOpenTransactions.indexOf(client) < 0) {
- if (client->openTransaction() == NO_ERROR) {
- if (gOpenTransactions.add(client) < 0) {
- // Ooops!
- LOGE( "Unable to add a SurfaceComposerClient "
- "to the global transaction set (out of memory?)");
- client->closeTransaction();
- // let it go, it'll fail later when the user
- // tries to do something with the transaction
- }
- } else {
- LOGE("openTransaction on client %p failed", client.get());
- // let it go, it'll fail later when the user
- // tries to do something with the transaction
- }
- }
- }
-}
-
-void SurfaceComposerClient::closeGlobalTransaction()
-{
- gLock.lock();
- SortedVector< sp<SurfaceComposerClient> > clients(gOpenTransactions);
- gOpenTransactions.clear();
- gLock.unlock();
-
- const size_t N = clients.size();
- VERBOSE("closeGlobalTransaction (%ld clients)", N);
-
- sp<ISurfaceComposer> sm(getComposerService());
- sm->openGlobalTransaction();
- for (size_t i=0; i<N; i++) {
- clients[i]->closeTransaction();
- }
- sm->closeGlobalTransaction();
-
-}
-
-
-status_t SurfaceComposerClient::freezeDisplay(DisplayID dpy, uint32_t flags)
-{
- sp<ISurfaceComposer> sm(getComposerService());
- return sm->freezeDisplay(dpy, flags);
-}
-
-status_t SurfaceComposerClient::unfreezeDisplay(DisplayID dpy, uint32_t flags)
-{
- sp<ISurfaceComposer> sm(getComposerService());
- return sm->unfreezeDisplay(dpy, flags);
-}
-
-int SurfaceComposerClient::setOrientation(DisplayID dpy,
- int orientation, uint32_t flags)
-{
- sp<ISurfaceComposer> sm(getComposerService());
- return sm->setOrientation(dpy, orientation, flags);
-}
-
-status_t SurfaceComposerClient::openTransaction()
-{
- if (mStatus != NO_ERROR)
- return mStatus;
- Mutex::Autolock _l(mLock);
- VERBOSE( "openTransaction (client %p, mTransactionOpen=%d)",
- this, mTransactionOpen);
- mTransactionOpen++;
- if (mPrebuiltLayerState == 0) {
- mPrebuiltLayerState = new layer_state_t;
- }
- return NO_ERROR;
-}
-
-
-status_t SurfaceComposerClient::closeTransaction()
-{
- if (mStatus != NO_ERROR)
- return mStatus;
-
- Mutex::Autolock _l(mLock);
-
- VERBOSE( "closeTransaction (client %p, mTransactionOpen=%d)",
- this, mTransactionOpen);
-
- if (mTransactionOpen <= 0) {
- LOGE( "closeTransaction (client %p, mTransactionOpen=%d) "
- "called more times than openTransaction()",
- this, mTransactionOpen);
- return INVALID_OPERATION;
- }
-
- if (mTransactionOpen >= 2) {
- mTransactionOpen--;
- return NO_ERROR;
- }
-
- mTransactionOpen = 0;
- const ssize_t count = mStates.size();
- if (count) {
- mClient->setState(count, mStates.array());
- mStates.clear();
- }
- return NO_ERROR;
-}
-
-layer_state_t* SurfaceComposerClient::_get_state_l(SurfaceID index)
-{
- // API usage error, do nothing.
- if (mTransactionOpen<=0) {
- LOGE("Not in transaction (client=%p, SurfaceID=%d, mTransactionOpen=%d",
- this, int(index), mTransactionOpen);
- return 0;
- }
-
- // use mPrebuiltLayerState just to find out if we already have it
- layer_state_t& dummy = *mPrebuiltLayerState;
- dummy.surface = index;
- ssize_t i = mStates.indexOf(dummy);
- if (i < 0) {
- // we don't have it, add an initialized layer_state to our list
- i = mStates.add(dummy);
- }
- return mStates.editArray() + i;
-}
-
-layer_state_t* SurfaceComposerClient::_lockLayerState(SurfaceID id)
-{
- layer_state_t* s;
- mLock.lock();
- s = _get_state_l(id);
- if (!s) mLock.unlock();
- return s;
-}
-
-void SurfaceComposerClient::_unlockLayerState()
-{
- mLock.unlock();
-}
-
-status_t SurfaceComposerClient::setPosition(SurfaceID id, int32_t x, int32_t y)
-{
- layer_state_t* s = _lockLayerState(id);
- if (!s) return BAD_INDEX;
- s->what |= ISurfaceComposer::ePositionChanged;
- s->x = x;
- s->y = y;
- _unlockLayerState();
- return NO_ERROR;
-}
-
-status_t SurfaceComposerClient::setSize(SurfaceID id, uint32_t w, uint32_t h)
-{
- layer_state_t* s = _lockLayerState(id);
- if (!s) return BAD_INDEX;
- s->what |= ISurfaceComposer::eSizeChanged;
- s->w = w;
- s->h = h;
- _unlockLayerState();
- return NO_ERROR;
-}
-
-status_t SurfaceComposerClient::setLayer(SurfaceID id, int32_t z)
-{
- layer_state_t* s = _lockLayerState(id);
- if (!s) return BAD_INDEX;
- s->what |= ISurfaceComposer::eLayerChanged;
- s->z = z;
- _unlockLayerState();
- return NO_ERROR;
-}
-
-status_t SurfaceComposerClient::hide(SurfaceID id)
-{
- return setFlags(id, ISurfaceComposer::eLayerHidden,
- ISurfaceComposer::eLayerHidden);
-}
-
-status_t SurfaceComposerClient::show(SurfaceID id, int32_t)
-{
- return setFlags(id, 0, ISurfaceComposer::eLayerHidden);
-}
-
-status_t SurfaceComposerClient::freeze(SurfaceID id)
-{
- return setFlags(id, ISurfaceComposer::eLayerFrozen,
- ISurfaceComposer::eLayerFrozen);
-}
-
-status_t SurfaceComposerClient::unfreeze(SurfaceID id)
-{
- return setFlags(id, 0, ISurfaceComposer::eLayerFrozen);
-}
-
-status_t SurfaceComposerClient::setFlags(SurfaceID id,
- uint32_t flags, uint32_t mask)
-{
- layer_state_t* s = _lockLayerState(id);
- if (!s) return BAD_INDEX;
- s->what |= ISurfaceComposer::eVisibilityChanged;
- s->flags &= ~mask;
- s->flags |= (flags & mask);
- s->mask |= mask;
- _unlockLayerState();
- return NO_ERROR;
-}
-
-status_t SurfaceComposerClient::setTransparentRegionHint(
- SurfaceID id, const Region& transparentRegion)
-{
- layer_state_t* s = _lockLayerState(id);
- if (!s) return BAD_INDEX;
- s->what |= ISurfaceComposer::eTransparentRegionChanged;
- s->transparentRegion = transparentRegion;
- _unlockLayerState();
- return NO_ERROR;
-}
-
-status_t SurfaceComposerClient::setAlpha(SurfaceID id, float alpha)
-{
- layer_state_t* s = _lockLayerState(id);
- if (!s) return BAD_INDEX;
- s->what |= ISurfaceComposer::eAlphaChanged;
- s->alpha = alpha;
- _unlockLayerState();
- return NO_ERROR;
-}
-
-status_t SurfaceComposerClient::setMatrix(
- SurfaceID id,
- float dsdx, float dtdx,
- float dsdy, float dtdy )
-{
- layer_state_t* s = _lockLayerState(id);
- if (!s) return BAD_INDEX;
- s->what |= ISurfaceComposer::eMatrixChanged;
- layer_state_t::matrix22_t matrix;
- matrix.dsdx = dsdx;
- matrix.dtdx = dtdx;
- matrix.dsdy = dsdy;
- matrix.dtdy = dtdy;
- s->matrix = matrix;
- _unlockLayerState();
- return NO_ERROR;
-}
-
-status_t SurfaceComposerClient::setFreezeTint(SurfaceID id, uint32_t tint)
-{
- layer_state_t* s = _lockLayerState(id);
- if (!s) return BAD_INDEX;
- s->what |= ISurfaceComposer::eFreezeTintChanged;
- s->tint = tint;
- _unlockLayerState();
- return NO_ERROR;
-}
-
-}; // namespace android
-