auto import from //depot/cupcake/@135843

1 files changed, 0 insertions, 1026 deletions

diff --git a/libs/ui/SurfaceComposerClient.cpp b/libs/ui/SurfaceComposerClient.cpp
deleted file mode 100644
index 9354a7a..0000000
--- a/libs/ui/SurfaceComposerClient.cpp
+++ /dev/null
@@ -1,1026 +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 <utils/IPCThreadState.h>
-#include <utils/IServiceManager.h>
-#include <utils/IMemory.h>
-#include <utils/Log.h>
-
-#include <ui/ISurfaceComposer.h>
-#include <ui/ISurfaceFlingerClient.h>
-#include <ui/ISurface.h>
-#include <ui/SurfaceComposerClient.h>
-#include <ui/DisplayInfo.h>
-#include <ui/Rect.h>
-#include <ui/Point.h>
-
-#include <private/ui/SharedState.h>
-#include <private/ui/LayerState.h>
-#include <private/ui/SurfaceFlingerSynchro.h>
-
-#include <pixelflinger/pixelflinger.h>
-
-#include <utils/BpBinder.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<IMemory>                                          gServerCblkMemory;
-static volatile surface_flinger_cblk_t*                     gServerCblk;
-
-const sp<ISurfaceComposer>& _get_surface_manager()
-{
-    if (gSurfaceManager != 0) {
-        return gSurfaceManager;
-    }
-
-    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);
-    sp<ISurfaceComposer> sc(interface_cast<ISurfaceComposer>(binder));
-
-    Mutex::Autolock _l(gLock);
-    if (gSurfaceManager == 0) {
-        gSurfaceManager = sc;
-    }
-    return gSurfaceManager;
-}
-
-static volatile surface_flinger_cblk_t const * get_cblk()
-{
-    if (gServerCblk == 0) {
-        const sp<ISurfaceComposer>& sm(_get_surface_manager());
-        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->pointer();
-            LOGE_IF(gServerCblk==0, "Can't get server control block address");
-        }
-    }
-    return gServerCblk;
-}
-
-// ---------------------------------------------------------------------------
-
-static void copyBlt(const GGLSurface& dst,
-        const GGLSurface& src, const Region& reg)
-{
-    Region::iterator iterator(reg);
-    if (iterator) {
-        // NOTE: dst and src must be the same format
-        Rect r;
-        const size_t bpp = bytesPerPixel(src.format);
-        const size_t dbpr = dst.stride * bpp;
-        const size_t sbpr = src.stride * bpp;
-        while (iterator.iterate(&r)) {
-            ssize_t h = r.bottom - r.top;
-            if (h) {
-                size_t size = (r.right - r.left) * bpp;
-                uint8_t* s = src.data + (r.left + src.stride * r.top) * bpp;
-                uint8_t* d = dst.data + (r.left + dst.stride * r.top) * bpp;
-                if (dbpr==sbpr && size==sbpr) {
-                    size *= h;
-                    h = 1;
-                }
-                do {
-                    memcpy(d, s, size);
-                    d += dbpr;
-                    s += sbpr;
-                } while (--h > 0);
-            }
-        }
-    }
-}
-
-// ---------------------------------------------------------------------------
-
-surface_flinger_cblk_t::surface_flinger_cblk_t()
-{
-}
-
-// ---------------------------------------------------------------------------
-
-per_client_cblk_t::per_client_cblk_t()
-{
-}
-
-// these functions are used by the clients
-inline status_t per_client_cblk_t::validate(size_t i) const {
-    if (uint32_t(i) >= NUM_LAYERS_MAX)
-        return BAD_INDEX;
-    if (layers[i].swapState & eInvalidSurface)
-        return NO_MEMORY;
-    return NO_ERROR;
-}
-
-int32_t per_client_cblk_t::lock_layer(size_t i, uint32_t flags)
-{
-    int32_t index;
-    uint32_t state;
-    int timeout = 0;
-    status_t result;
-    layer_cblk_t * const layer = layers + i;
-    const bool blocking = flags & BLOCKING;
-    const bool inspect  = flags & INSPECT;
-
-    do {
-        state = layer->swapState;
-
-        if (UNLIKELY((state&(eFlipRequested|eNextFlipPending)) == eNextFlipPending)) {
-            LOGE("eNextFlipPending set but eFlipRequested not set, "
-                 "layer=%d (lcblk=%p), state=%08x",
-                 int(i), layer, int(state));
-            return INVALID_OPERATION;
-        }
-
-        if (UNLIKELY(state&eLocked)) {
-            LOGE("eLocked set when entering lock_layer(), "
-                 "layer=%d (lcblk=%p), state=%08x",
-                 int(i), layer, int(state));
-            return WOULD_BLOCK;
-        }
-
-
-	    if (state & (eFlipRequested | eNextFlipPending | eResizeRequested
-                        | eInvalidSurface))
-        {
-	        int32_t resizeIndex;
-	        Mutex::Autolock _l(lock);
-	            // might block for a very short amount of time
-	            // will never cause the server to block (trylock())
-
-	        goto start_loop_here;
-
-	        // We block the client if:
-	        // eNextFlipPending:  we've used both buffers already, so we need to
-	        //                    wait for one to become availlable.
-	        // eResizeRequested:  the buffer we're going to acquire is being
-	        //                    resized. Block until it is done.
-	        // eFlipRequested && eBusy: the buffer we're going to acquire is
-	        //                    currently in use by the server.
-	        // eInvalidSurface:   this is a special case, we don't block in this
-	        //                    case, we just return an error.
-
-	        while((state & (eNextFlipPending|eInvalidSurface)) ||
-	              (state & ((resizeIndex) ? eResizeBuffer1 : eResizeBuffer0)) ||
-	              ((state & (eFlipRequested|eBusy)) == (eFlipRequested|eBusy)) )
-	        {
-	            if (state & eInvalidSurface)
-	                return NO_MEMORY;
-
-	            if (!blocking)
-	                return WOULD_BLOCK;
-
-                timeout = 0;
-                result = cv.waitRelative(lock, seconds(1));
-	            if (__builtin_expect(result!=NO_ERROR, false)) {
-                    const int newState = layer->swapState;
-                    LOGW(   "lock_layer timed out (is the CPU pegged?) "
-                            "layer=%d, lcblk=%p, state=%08x (was %08x)",
-                            int(i), layer, newState, int(state));
-                    timeout = newState != int(state);
-                }
-
-	        start_loop_here:
-	            state = layer->swapState;
-	            resizeIndex = (state&eIndex) ^ ((state&eFlipRequested)>>1);
-	        }
-
-            LOGW_IF(timeout,
-                    "lock_layer() timed out but didn't appear to need "
-                    "to be locked and we recovered "
-                    "(layer=%d, lcblk=%p, state=%08x)",
-                    int(i), layer, int(state));
-	    }
-
-	    // eFlipRequested is not set and cannot be set by another thread: it's
-	    // safe to use the first buffer without synchronization.
-
-        // Choose the index depending on eFlipRequested.
-        // When it's set, choose the 'other' buffer.
-        index = (state&eIndex) ^ ((state&eFlipRequested)>>1);
-
-	    // make sure this buffer is valid
-	    if (layer->surface[index].bits_offset < 0) {
-	        return status_t(layer->surface[index].bits_offset);
-	    }
-
-        if (inspect) {
-            // we just want to inspect this layer. don't lock it.
-            goto done;
-        }
-
-	    // last thing before we're done, we need to atomically lock the state
-    } while (android_atomic_cmpxchg(state, state|eLocked, &(layer->swapState)));
-
-    VERBOSE("locked layer=%d (lcblk=%p), buffer=%d, state=0x%08x",
-         int(i), layer, int(index), int(state));
-
-    // store the index of the locked buffer (for client use only)
-    layer->flags &= ~eBufferIndex;
-    layer->flags |= ((index << eBufferIndexShift) & eBufferIndex);
-
-done:
-    return index;
-}
-
-uint32_t per_client_cblk_t::unlock_layer_and_post(size_t i)
-{
-    // atomically set eFlipRequested and clear eLocked and optionnaly
-    // set eNextFlipPending if eFlipRequested was already set
-
-    layer_cblk_t * const layer = layers + i;
-    int32_t oldvalue, newvalue;
-    do {
-        oldvalue = layer->swapState;
-            // get current value
-
-        newvalue = oldvalue & ~eLocked;
-            // clear eLocked
-
-        newvalue |= eFlipRequested;
-            // set eFlipRequested
-
-        if (oldvalue & eFlipRequested)
-            newvalue |= eNextFlipPending;
-            // if eFlipRequested was alread set, set eNextFlipPending
-
-    } while (android_atomic_cmpxchg(oldvalue, newvalue, &(layer->swapState)));
-
-    VERBOSE("request pageflip for layer=%d, buffer=%d, state=0x%08x",
-            int(i), int((layer->flags & eBufferIndex) >> eBufferIndexShift),
-            int(newvalue));
-
-    // from this point, the server can kick in at anytime and use the first
-    // buffer, so we cannot use it anymore, and we must use the 'other'
-    // buffer instead (or wait if it is not availlable yet, see lock_layer).
-
-    return newvalue;
-}
-
-void per_client_cblk_t::unlock_layer(size_t i)
-{
-    layer_cblk_t * const layer = layers + i;
-    android_atomic_and(~eLocked, &layer->swapState);
-}
-
-// ---------------------------------------------------------------------------
-
-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()
-{
-    const sp<ISurfaceComposer>& sm(_get_surface_manager());
-    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));
-}
-
-void SurfaceComposerClient::_init(
-        const sp<ISurfaceComposer>& sm, const sp<ISurfaceFlingerClient>& conn)
-{
-    VERBOSE("Creating client %p, conn %p", this, conn.get());
-
-    mSignalServer = 0;
-    mPrebuiltLayerState = 0;
-    mTransactionOpen = 0;
-    mStatus = NO_ERROR;
-    mControl = 0;
-
-    mClient = conn;
-    if (mClient == 0) {
-        mStatus = NO_INIT;
-        return;
-    }
-
-    mClient->getControlBlocks(&mControlMemory);
-    mSignalServer = new SurfaceFlingerSynchro(sm);
-    mControl = static_cast<per_client_cblk_t *>(mControlMemory->pointer());
-}
-
-SurfaceComposerClient::~SurfaceComposerClient()
-{
-    VERBOSE("Destroying client %p, conn %p", this, mClient.get());
-    dispose();
-}
-
-status_t SurfaceComposerClient::initCheck() const
-{
-    return mStatus;
-}
-
-status_t SurfaceComposerClient::validateSurface(
-        per_client_cblk_t const* cblk, Surface const * surface)
-{
-    SurfaceID index = surface->ID();
-    if (cblk == 0) {
-        LOGE("cblk is null (surface id=%d, identity=%u)",
-                index, surface->getIdentity());
-        return NO_INIT;
-    }
-
-    status_t err = cblk->validate(index);
-    if (err != NO_ERROR) {
-        LOGE("surface (id=%d, identity=%u) is invalid, err=%d (%s)",
-                index, surface->getIdentity(), err, strerror(-err));
-        return err;
-    }
-
-    if (surface->getIdentity() != uint32_t(cblk->layers[index].identity)) {
-        LOGE("using an invalid surface id=%d, identity=%u should be %d",
-                index, surface->getIdentity(), cblk->layers[index].identity);
-        return NO_INIT;
-    }
-
-    return NO_ERROR;
-}
-
-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.
-        const sp<ISurfaceComposer>& sm(_get_surface_manager());
-        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<IMemory>                 controlMemory;
-    sp<ISurfaceFlingerClient>   client;
-    sp<IMemoryHeap>             surfaceHeap;
-
-    {
-        Mutex::Autolock _lg(gLock);
-        Mutex::Autolock _lm(mLock);
-
-        delete mSignalServer;
-        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;
-        surfaceHeap = mSurfaceHeap;
-        mControlMemory.clear();
-        mSurfaceHeap.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;
-}
-
-sp<Surface> SurfaceComposerClient::createSurface(
-        int pid,
-        DisplayID display,
-        uint32_t w,
-        uint32_t h,
-        PixelFormat format,
-        uint32_t flags)
-{
-    sp<Surface> 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 Surface(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;
-}
-
-status_t SurfaceComposerClient::nextBuffer(Surface* surface,
-                        Surface::SurfaceInfo* info)
-{
-    SurfaceID index = surface->ID();
-    per_client_cblk_t* const cblk = mControl;
-    status_t err = validateSurface(cblk, surface);
-    if (err != NO_ERROR)
-        return err;
-
-    int32_t backIdx = surface->mBackbufferIndex;
-    layer_cblk_t* const lcblk = &(cblk->layers[index]);
-    const surface_info_t* const front = lcblk->surface + (1-backIdx);
-        info->w      = front->w;
-        info->h      = front->h;
-        info->format = front->format;
-        info->base   = surface->heapBase(1-backIdx);
-        info->bits   = reinterpret_cast<void*>(intptr_t(info->base) + front->bits_offset);
-        info->bpr    = front->bpr;
-
-    return 0;
-}
-
-status_t SurfaceComposerClient::lockSurface(
-        Surface* surface,
-        Surface::SurfaceInfo* other,
-        Region* dirty,
-        bool blocking)
-{
-    Mutex::Autolock _l(surface->getLock());
-
-    SurfaceID index = surface->ID();
-    per_client_cblk_t* const cblk = mControl;
-    status_t err = validateSurface(cblk, surface);
-    if (err != NO_ERROR)
-        return err;
-
-    int32_t backIdx = cblk->lock_layer(size_t(index),
-            per_client_cblk_t::BLOCKING);
-    if (backIdx >= 0) {
-        surface->mBackbufferIndex = backIdx;
-        layer_cblk_t* const lcblk = &(cblk->layers[index]);
-        const surface_info_t* const back = lcblk->surface + backIdx;
-        const surface_info_t* const front = lcblk->surface + (1-backIdx);
-            other->w      = back->w;
-            other->h      = back->h;
-            other->format = back->format;
-            other->base   = surface->heapBase(backIdx);
-            other->bits   = reinterpret_cast<void*>(intptr_t(other->base) + back->bits_offset);
-            other->bpr    = back->bpr;
-
-        const Rect bounds(other->w, other->h);
-        Region newDirtyRegion;
-
-        if (back->flags & surface_info_t::eBufferDirty) {
-            /* it is safe to write *back here, because we're guaranteed
-             * SurfaceFlinger is not touching it (since it just granted
-             * access to us) */
-            const_cast<surface_info_t*>(back)->flags &=
-                    ~surface_info_t::eBufferDirty;
-
-            // content is meaningless in this case and the whole surface
-            // needs to be redrawn.
-
-            newDirtyRegion.set(bounds);
-            if (dirty) {
-                *dirty = newDirtyRegion;
-            }
-
-            //if (bytesPerPixel(other->format) == 4) {
-            //    android_memset32(
-            //        (uint32_t*)other->bits, 0xFF00FF00, other->h * other->bpr);
-            //} else {
-            //    android_memset16( // fill with green
-            //        (uint16_t*)other->bits, 0x7E0, other->h * other->bpr);
-            //}
-        }
-        else
-        {
-            if (dirty) {
-                dirty->andSelf(Region(bounds));
-                newDirtyRegion = *dirty;
-            } else {
-                newDirtyRegion.set(bounds);
-            }
-
-            Region copyback;
-            if (!(lcblk->flags & eNoCopyBack)) {
-                const Region previousDirtyRegion(surface->dirtyRegion());
-                copyback = previousDirtyRegion.subtract(newDirtyRegion);
-            }
-
-            if (!copyback.isEmpty()) {
-                // copy front to back
-                GGLSurface cb;
-                    cb.version = sizeof(GGLSurface);
-                    cb.width = back->w;
-                    cb.height = back->h;
-                    cb.stride = back->stride;
-                    cb.data = (GGLubyte*)surface->heapBase(backIdx);
-                    cb.data += back->bits_offset;
-                    cb.format = back->format;
-
-                GGLSurface t;
-                    t.version = sizeof(GGLSurface);
-                    t.width = front->w;
-                    t.height = front->h;
-                    t.stride = front->stride;
-                    t.data = (GGLubyte*)surface->heapBase(1-backIdx);
-                    t.data += front->bits_offset;
-                    t.format = front->format;
-
-                //const Region copyback(lcblk->region + 1-backIdx);
-                copyBlt(cb, t, copyback);
-            }
-        }
-
-        // update dirty region
-        surface->setDirtyRegion(newDirtyRegion);
-    }
-    return (backIdx < 0) ? status_t(backIdx) : status_t(NO_ERROR);
-}
-
-void SurfaceComposerClient::_signal_server()
-{
-    mSignalServer->signal();
-}
-
-void SurfaceComposerClient::_send_dirty_region(
-        layer_cblk_t* lcblk, const Region& dirty)
-{
-    const int32_t index = (lcblk->flags & eBufferIndex) >> eBufferIndexShift;
-    flat_region_t* flat_region = lcblk->region + index;
-    status_t err = dirty.write(flat_region, sizeof(flat_region_t));
-    if (err < NO_ERROR) {
-        // region doesn't fit, use the bounds
-        const Region reg(dirty.bounds());
-        reg.write(flat_region, sizeof(flat_region_t));
-    }
-}
-
-status_t SurfaceComposerClient::unlockAndPostSurface(Surface* surface)
-{
-    Mutex::Autolock _l(surface->getLock());
-
-    SurfaceID index = surface->ID();
-    per_client_cblk_t* const cblk = mControl;
-    status_t err = validateSurface(cblk, surface);
-    if (err != NO_ERROR)
-        return err;
-
-    Region dirty(surface->dirtyRegion());
-    const Rect& swapRect(surface->swapRectangle());
-    if (swapRect.isValid()) {
-        dirty.set(swapRect);
-    }
-
-    // transmit the dirty region
-    layer_cblk_t* const lcblk = &(cblk->layers[index]);
-    _send_dirty_region(lcblk, dirty);
-    uint32_t newstate = cblk->unlock_layer_and_post(size_t(index));
-    if (!(newstate & eNextFlipPending))
-        _signal_server();
-    return NO_ERROR;
-}
-
-status_t SurfaceComposerClient::unlockSurface(Surface* surface)
-{
-    Mutex::Autolock _l(surface->getLock());
-
-    SurfaceID index = surface->ID();
-    per_client_cblk_t* const cblk = mControl;
-    status_t err = validateSurface(cblk, surface);
-    if (err != NO_ERROR)
-        return err;
-
-    layer_cblk_t* const lcblk = &(cblk->layers[index]);
-    cblk->unlock_layer(size_t(index));
-    return NO_ERROR;
-}
-
-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);
-    if (N == 1) {
-        clients[0]->closeTransaction();
-    } else {
-        const sp<ISurfaceComposer>& sm(_get_surface_manager());
-        sm->openGlobalTransaction();
-        for (size_t i=0; i<N; i++) {
-            clients[i]->closeTransaction();
-        }
-        sm->closeGlobalTransaction();
-    }
-}
-
-status_t SurfaceComposerClient::freezeDisplay(DisplayID dpy, uint32_t flags)
-{
-    const sp<ISurfaceComposer>& sm(_get_surface_manager());
-    return sm->freezeDisplay(dpy, flags);
-}
-
-status_t SurfaceComposerClient::unfreezeDisplay(DisplayID dpy, uint32_t flags)
-{
-    const sp<ISurfaceComposer>& sm(_get_surface_manager());
-    return sm->unfreezeDisplay(dpy, flags);
-}
-
-int SurfaceComposerClient::setOrientation(DisplayID dpy, int orientation)
-{
-    const sp<ISurfaceComposer>& sm(_get_surface_manager());
-    return sm->setOrientation(dpy, orientation);
-}
-
-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(const sp<Surface>& surface)
-{
-    SurfaceID index = surface->ID();
-    per_client_cblk_t* const cblk = mControl;
-    status_t err = validateSurface(cblk, surface.get());
-    if (err != NO_ERROR)
-        return 0;
-
-    // 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(const sp<Surface>& surface)
-{
-    layer_state_t* s;
-    mLock.lock();
-    s = _get_state_l(surface);
-    if (!s) mLock.unlock();
-    return s;
-}
-
-void SurfaceComposerClient::_unlockLayerState()
-{
-    mLock.unlock();
-}
-
-status_t SurfaceComposerClient::setPosition(Surface* surface, int32_t x, int32_t y)
-{
-    layer_state_t* s = _lockLayerState(surface);
-    if (!s) return BAD_INDEX;
-    s->what |= ISurfaceComposer::ePositionChanged;
-    s->x = x;
-    s->y = y;
-    _unlockLayerState();
-    return NO_ERROR;
-}
-
-status_t SurfaceComposerClient::setSize(Surface* surface, uint32_t w, uint32_t h)
-{
-    layer_state_t* s = _lockLayerState(surface);
-    if (!s) return BAD_INDEX;
-    s->what |= ISurfaceComposer::eSizeChanged;
-    s->w = w;
-    s->h = h;
-    _unlockLayerState();
-    return NO_ERROR;
-}
-
-status_t SurfaceComposerClient::setLayer(Surface* surface, int32_t z)
-{
-    layer_state_t* s = _lockLayerState(surface);
-    if (!s) return BAD_INDEX;
-    s->what |= ISurfaceComposer::eLayerChanged;
-    s->z = z;
-    _unlockLayerState();
-    return NO_ERROR;
-}
-
-status_t SurfaceComposerClient::hide(Surface* surface)
-{
-    return setFlags(surface, ISurfaceComposer::eLayerHidden,
-            ISurfaceComposer::eLayerHidden);
-}
-
-status_t SurfaceComposerClient::show(Surface* surface, int32_t)
-{
-    return setFlags(surface, 0, ISurfaceComposer::eLayerHidden);
-}
-
-status_t SurfaceComposerClient::freeze(Surface* surface)
-{
-    return setFlags(surface, ISurfaceComposer::eLayerFrozen,
-            ISurfaceComposer::eLayerFrozen);
-}
-
-status_t SurfaceComposerClient::unfreeze(Surface* surface)
-{
-    return setFlags(surface, 0, ISurfaceComposer::eLayerFrozen);
-}
-
-status_t SurfaceComposerClient::setFlags(Surface* surface,
-        uint32_t flags, uint32_t mask)
-{
-    layer_state_t* s = _lockLayerState(surface);
-    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(
-        Surface* surface, const Region& transparentRegion)
-{
-    layer_state_t* s = _lockLayerState(surface);
-    if (!s) return BAD_INDEX;
-    s->what |= ISurfaceComposer::eTransparentRegionChanged;
-    s->transparentRegion = transparentRegion;
-    _unlockLayerState();
-    return NO_ERROR;
-}
-
-status_t SurfaceComposerClient::setAlpha(Surface* surface, float alpha)
-{
-    layer_state_t* s = _lockLayerState(surface);
-    if (!s) return BAD_INDEX;
-    s->what |= ISurfaceComposer::eAlphaChanged;
-    s->alpha = alpha;
-    _unlockLayerState();
-    return NO_ERROR;
-}
-
-status_t SurfaceComposerClient::setMatrix(
-        Surface* surface,
-        float dsdx, float dtdx,
-        float dsdy, float dtdy )
-{
-    layer_state_t* s = _lockLayerState(surface);
-    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(Surface* surface, uint32_t tint)
-{
-    layer_state_t* s = _lockLayerState(surface);
-    if (!s) return BAD_INDEX;
-    s->what |= ISurfaceComposer::eFreezeTintChanged;
-    s->tint = tint;
-    _unlockLayerState();
-    return NO_ERROR;
-}
-
-}; // namespace android
-