| /* |
| * 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, uint32_t flags) |
| { |
| const sp<ISurfaceComposer>& sm(_get_surface_manager()); |
| 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(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 |
| |
