split libsurfaceflinger_client and libcamera_client out of libui
diff --git a/libs/surfaceflinger_client/SurfaceComposerClient.cpp b/libs/surfaceflinger_client/SurfaceComposerClient.cpp
new file mode 100644
index 0000000..0b5e504
--- /dev/null
+++ b/libs/surfaceflinger_client/SurfaceComposerClient.cpp
@@ -0,0 +1,622 @@
+/*
+ * 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 <utils/Log.h>
+
+#include <binder/IServiceManager.h>
+#include <binder/IMemory.h>
+
+#include <ui/DisplayInfo.h>
+#include <ui/Rect.h>
+
+#include <surfaceflinger/ISurfaceComposer.h>
+#include <surfaceflinger/ISurfaceFlingerClient.h>
+#include <surfaceflinger/ISurface.h>
+#include <surfaceflinger/SurfaceComposerClient.h>
+
+#include <private/surfaceflinger/LayerState.h>
+#include <private/surfaceflinger/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
+