diff --git a/include/private/surfaceflinger/SharedBufferStack.h b/include/private/surfaceflinger/SharedBufferStack.h index a1a02e06a..0c5a2e4dd 100644 --- a/include/private/surfaceflinger/SharedBufferStack.h +++ b/include/private/surfaceflinger/SharedBufferStack.h @@ -55,12 +55,6 @@ namespace android { * */ -// When changing these values, the COMPILE_TIME_ASSERT at the end of this -// file need to be updated. -const unsigned int NUM_LAYERS_MAX = 31; -const unsigned int NUM_BUFFER_MAX = 16; -const unsigned int NUM_DISPLAY_MAX = 4; - // ---------------------------------------------------------------------------- class Region; @@ -82,6 +76,12 @@ class SharedBufferStack friend class SharedBufferServer; public: + // When changing these values, the COMPILE_TIME_ASSERT at the end of this + // file need to be updated. + static const unsigned int NUM_LAYERS_MAX = 31; + static const unsigned int NUM_BUFFER_MAX = 16; + static const unsigned int NUM_DISPLAY_MAX = 4; + struct Statistics { // 4 longs typedef int32_t usecs_t; usecs_t totalTime; @@ -147,7 +147,7 @@ private: // FIXME: this should be replaced by a lock-less primitive Mutex lock; Condition cv; - SharedBufferStack surfaces[ NUM_LAYERS_MAX ]; + SharedBufferStack surfaces[ SharedBufferStack::NUM_LAYERS_MAX ]; }; // ============================================================================ @@ -155,7 +155,7 @@ private: class SharedBufferBase { public: - SharedBufferBase(SharedClient* sharedClient, int surface, int num, + SharedBufferBase(SharedClient* sharedClient, int surface, int32_t identity); ~SharedBufferBase(); uint32_t getIdentity(); @@ -166,9 +166,7 @@ public: protected: SharedClient* const mSharedClient; SharedBufferStack* const mSharedStack; - int mNumBuffers; const int mIdentity; - int32_t computeTail() const; friend struct Update; friend struct QueueUpdate; @@ -217,8 +215,16 @@ public: bool needNewBuffer(int buffer) const; status_t setDirtyRegion(int buffer, const Region& reg); status_t setCrop(int buffer, const Rect& reg); - status_t setBufferCount(int bufferCount); + + class SetBufferCountCallback { + friend class SharedBufferClient; + virtual status_t operator()(int bufferCount) const = 0; + protected: + virtual ~SetBufferCountCallback() { } + }; + status_t setBufferCount(int bufferCount, const SetBufferCountCallback& ipc); + private: friend struct Condition; friend struct DequeueCondition; @@ -249,11 +255,16 @@ private: inline const char* name() const { return "LockCondition"; } }; + int32_t computeTail() const; + + mutable RWLock mLock; + int mNumBuffers; + int32_t tail; int32_t undoDequeueTail; int32_t queued_head; // statistics... - nsecs_t mDequeueTime[NUM_BUFFER_MAX]; + nsecs_t mDequeueTime[SharedBufferStack::NUM_BUFFER_MAX]; }; // ---------------------------------------------------------------------------- @@ -287,7 +298,8 @@ private: size_t mCapacity; uint32_t mList; public: - BufferList(size_t c = NUM_BUFFER_MAX) : mCapacity(c), mList(0) { } + BufferList(size_t c = SharedBufferStack::NUM_BUFFER_MAX) + : mCapacity(c), mList(0) { } status_t add(int value); status_t remove(int value); @@ -324,6 +336,9 @@ private: } }; + // this protects mNumBuffers and mBufferList + mutable RWLock mLock; + int mNumBuffers; BufferList mBufferList; struct UnlockUpdate : public UpdateBase { @@ -373,7 +388,7 @@ struct surface_flinger_cblk_t // 4KB max uint8_t connected; uint8_t reserved[3]; uint32_t pad[7]; - display_cblk_t displays[NUM_DISPLAY_MAX]; + display_cblk_t displays[SharedBufferStack::NUM_DISPLAY_MAX]; }; // --------------------------------------------------------------------------- diff --git a/libs/surfaceflinger/Barrier.h b/libs/surfaceflinger/Barrier.h index e2bcf6a04..6f8507e24 100644 --- a/libs/surfaceflinger/Barrier.h +++ b/libs/surfaceflinger/Barrier.h @@ -29,10 +29,6 @@ public: inline Barrier() : state(CLOSED) { } inline ~Barrier() { } void open() { - // gcc memory barrier, this makes sure all memory writes - // have been issued by gcc. On an SMP system we'd need a real - // h/w barrier. - asm volatile ("":::"memory"); Mutex::Autolock _l(lock); state = OPENED; cv.broadcast(); diff --git a/libs/surfaceflinger/Layer.cpp b/libs/surfaceflinger/Layer.cpp index 1fe997d41..621b7e368 100644 --- a/libs/surfaceflinger/Layer.cpp +++ b/libs/surfaceflinger/Layer.cpp @@ -60,7 +60,7 @@ Layer::Layer(SurfaceFlinger* flinger, DisplayID display, // no OpenGL operation is possible here, since we might not be // in the OpenGL thread. lcblk = new SharedBufferServer( - client->ctrlblk, i, mBufferManager.getBufferCount(), + client->ctrlblk, i, mBufferManager.getDefaultBufferCount(), getIdentity()); mBufferManager.setActiveBufferIndex( lcblk->getFrontBuffer() ); @@ -68,7 +68,10 @@ Layer::Layer(SurfaceFlinger* flinger, DisplayID display, Layer::~Layer() { - destroy(); + // FIXME: must be called from the main UI thread + EGLDisplay dpy(mFlinger->graphicPlane(0).getEGLDisplay()); + mBufferManager.destroy(dpy); + // the actual buffers will be destroyed here delete lcblk; } @@ -81,17 +84,6 @@ void Layer::onRemoved() lcblk->setStatus(NO_INIT); } -void Layer::destroy() -{ - EGLDisplay dpy(mFlinger->graphicPlane(0).getEGLDisplay()); - mBufferManager.destroy(dpy); - - mSurface.clear(); - - Mutex::Autolock _l(mLock); - mWidth = mHeight = 0; -} - sp Layer::createSurface() const { return mSurface; @@ -99,9 +91,17 @@ sp Layer::createSurface() const status_t Layer::ditch() { + // NOTE: Called from the main UI thread + // the layer is not on screen anymore. free as much resources as possible mFreezeLock.clear(); - destroy(); + + EGLDisplay dpy(mFlinger->graphicPlane(0).getEGLDisplay()); + mBufferManager.destroy(dpy); + mSurface.clear(); + + Mutex::Autolock _l(mLock); + mWidth = mHeight = 0; return NO_ERROR; } @@ -211,7 +211,7 @@ void Layer::onDraw(const Region& clip) const status_t Layer::setBufferCount(int bufferCount) { - // this ensures our client doesn't go away while we're accessing + // Ensures our client doesn't go away while we're accessing // the shared area. sp ourClient(client.promote()); if (ourClient == 0) { @@ -219,15 +219,10 @@ status_t Layer::setBufferCount(int bufferCount) return DEAD_OBJECT; } - status_t err; - - // FIXME: resize() below is NOT thread-safe, we need to synchronize - // the users of lcblk in our process (ie: retire), and we assume the - // client is not mucking with the SharedStack, which is only enforced - // by construction, therefore we need to protect ourselves against - // buggy and malicious client (as always) - - err = lcblk->resize(bufferCount); + // NOTE: lcblk->resize() is protected by an internal lock + status_t err = lcblk->resize(bufferCount); + if (err == NO_ERROR) + mBufferManager.resize(bufferCount); return err; } @@ -248,7 +243,7 @@ sp Layer::requestBuffer(int index, int usage) * This is called from the client's Surface::dequeue(). This can happen * at any time, especially while we're in the middle of using the * buffer 'index' as our front buffer. - * + * * Make sure the buffer we're resizing is not the front buffer and has been * dequeued. Once this condition is asserted, we are guaranteed that this * buffer cannot become the front buffer under our feet, since we're called @@ -544,12 +539,20 @@ void Layer::dump(String8& result, char* buffer, size_t SIZE) const // --------------------------------------------------------------------------- Layer::BufferManager::BufferManager(TextureManager& tm) - : mTextureManager(tm), mActiveBuffer(0), mFailover(false) + : mNumBuffers(NUM_BUFFERS), mTextureManager(tm), + mActiveBuffer(0), mFailover(false) { } -size_t Layer::BufferManager::getBufferCount() const { - return NUM_BUFFERS; +Layer::BufferManager::~BufferManager() +{ +} + +status_t Layer::BufferManager::resize(size_t size) +{ + Mutex::Autolock _l(mLock); + mNumBuffers = size; + return NO_ERROR; } // only for debugging @@ -568,51 +571,55 @@ size_t Layer::BufferManager::getActiveBufferIndex() const { } Texture Layer::BufferManager::getActiveTexture() const { - return mFailover ? mFailoverTexture : mBufferData[mActiveBuffer].texture; + Texture res; + if (mFailover) { + res = mFailoverTexture; + } else { + static_cast(res) = mBufferData[mActiveBuffer].texture; + } + return res; } sp Layer::BufferManager::getActiveBuffer() const { + const size_t activeBuffer = mActiveBuffer; + BufferData const * const buffers = mBufferData; Mutex::Autolock _l(mLock); - return mBufferData[mActiveBuffer].buffer; + return buffers[activeBuffer].buffer; } sp Layer::BufferManager::detachBuffer(size_t index) { + BufferData* const buffers = mBufferData; sp buffer; Mutex::Autolock _l(mLock); - buffer = mBufferData[index].buffer; - mBufferData[index].buffer = 0; + buffer = buffers[index].buffer; + buffers[index].buffer = 0; return buffer; } status_t Layer::BufferManager::attachBuffer(size_t index, const sp& buffer) { + BufferData* const buffers = mBufferData; Mutex::Autolock _l(mLock); - mBufferData[index].buffer = buffer; - mBufferData[index].texture.dirty = true; - return NO_ERROR; -} - -status_t Layer::BufferManager::destroyTexture(Texture* tex, EGLDisplay dpy) -{ - if (tex->name != -1U) { - glDeleteTextures(1, &tex->name); - tex->name = -1U; - } - if (tex->image != EGL_NO_IMAGE_KHR) { - eglDestroyImageKHR(dpy, tex->image); - tex->image = EGL_NO_IMAGE_KHR; - } + buffers[index].buffer = buffer; + buffers[index].texture.dirty = true; return NO_ERROR; } status_t Layer::BufferManager::destroy(EGLDisplay dpy) { - Mutex::Autolock _l(mLock); - for (size_t i=0 ; i& buffer) { size_t index = mActiveBuffer; - Texture& texture(mBufferData[index].texture); + Image& texture(mBufferData[index].texture); status_t err = mTextureManager.initEglImage(&texture, dpy, buffer); // if EGLImage fails, we switch to regular texture mode, and we // free all resources associated with using EGLImages. @@ -631,7 +638,8 @@ status_t Layer::BufferManager::initEglImage(EGLDisplay dpy, destroyTexture(&mFailoverTexture, dpy); } else { mFailover = true; - for (size_t i=0 ; iname != -1U) { + glDeleteTextures(1, &tex->name); + tex->name = -1U; + } + if (tex->image != EGL_NO_IMAGE_KHR) { + eglDestroyImageKHR(dpy, tex->image); + tex->image = EGL_NO_IMAGE_KHR; + } + return NO_ERROR; +} + // --------------------------------------------------------------------------- Layer::SurfaceLayer::SurfaceLayer(const sp& flinger, @@ -661,6 +682,11 @@ sp Layer::SurfaceLayer::requestBuffer(int index, int usage) sp buffer; sp owner(getOwner()); if (owner != 0) { + /* + * requestBuffer() cannot be called from the main thread + * as it could cause a dead-lock, since it may have to wait + * on conditions updated my the main thread. + */ buffer = owner->requestBuffer(index, usage); } return buffer; @@ -671,6 +697,11 @@ status_t Layer::SurfaceLayer::setBufferCount(int bufferCount) status_t err = DEAD_OBJECT; sp owner(getOwner()); if (owner != 0) { + /* + * setBufferCount() cannot be called from the main thread + * as it could cause a dead-lock, since it may have to wait + * on conditions updated my the main thread. + */ err = owner->setBufferCount(bufferCount); } return err; diff --git a/libs/surfaceflinger/Layer.h b/libs/surfaceflinger/Layer.h index 80fbd6aca..247748b03 100644 --- a/libs/surfaceflinger/Layer.h +++ b/libs/surfaceflinger/Layer.h @@ -90,7 +90,6 @@ private: sp requestBuffer(int index, int usage); status_t setBufferCount(int bufferCount); - void destroy(); class SurfaceLayer : public LayerBaseClient::Surface { public: @@ -120,25 +119,32 @@ private: static const size_t NUM_BUFFERS = 2; struct BufferData { sp buffer; - Texture texture; + Image texture; }; + // this lock protect mBufferData[].buffer but since there + // is very little contention, we have only one like for + // the whole array, we also use it to protect mNumBuffers. mutable Mutex mLock; - BufferData mBufferData[NUM_BUFFERS]; + BufferData mBufferData[SharedBufferStack::NUM_BUFFER_MAX]; + size_t mNumBuffers; Texture mFailoverTexture; TextureManager& mTextureManager; ssize_t mActiveBuffer; bool mFailover; - static status_t destroyTexture(Texture* tex, EGLDisplay dpy); + static status_t destroyTexture(Image* tex, EGLDisplay dpy); public: + static size_t getDefaultBufferCount() { return NUM_BUFFERS; } BufferManager(TextureManager& tm); - - size_t getBufferCount() const; + ~BufferManager(); // detach/attach buffer from/to given index sp detachBuffer(size_t index); status_t attachBuffer(size_t index, const sp& buffer); + // resize the number of active buffers + status_t resize(size_t size); + // ---------------------------------------------- // must be called from GL thread @@ -170,6 +176,8 @@ private: TextureManager mTextureManager; BufferManager mBufferManager; + // this lock protects mWidth and mHeight which are accessed from + // the main thread and requestBuffer's binder transaction thread. mutable Mutex mLock; uint32_t mWidth; uint32_t mHeight; diff --git a/libs/surfaceflinger/LayerBlur.cpp b/libs/surfaceflinger/LayerBlur.cpp index 2d778763e..09c90e800 100644 --- a/libs/surfaceflinger/LayerBlur.cpp +++ b/libs/surfaceflinger/LayerBlur.cpp @@ -95,7 +95,9 @@ void LayerBlur::unlockPageFlip(const Transform& planeTransform, Region& outDirty mCacheDirty = false; } else { if (!mAutoRefreshPending) { - mFlinger->signalDelayedEvent(ms2ns(500)); + mFlinger->postMessageAsync( + new MessageBase(MessageQueue::INVALIDATE), + ms2ns(500)); mAutoRefreshPending = true; } } diff --git a/libs/surfaceflinger/MessageQueue.cpp b/libs/surfaceflinger/MessageQueue.cpp index b43d80173..d668e88d4 100644 --- a/libs/surfaceflinger/MessageQueue.cpp +++ b/libs/surfaceflinger/MessageQueue.cpp @@ -60,9 +60,9 @@ MessageQueue::~MessageQueue() { } -MessageList::value_type MessageQueue::waitMessage(nsecs_t timeout) +sp MessageQueue::waitMessage(nsecs_t timeout) { - MessageList::value_type result; + sp result; bool again; do { @@ -132,6 +132,7 @@ MessageList::value_type MessageQueue::waitMessage(nsecs_t timeout) if (again) { // the message has been processed. release our reference to it // without holding the lock. + result->notify(); result = 0; } @@ -141,7 +142,7 @@ MessageList::value_type MessageQueue::waitMessage(nsecs_t timeout) } status_t MessageQueue::postMessage( - const MessageList::value_type& message, nsecs_t relTime, uint32_t flags) + const sp& message, nsecs_t relTime, uint32_t flags) { return queueMessage(message, relTime, flags); } @@ -154,7 +155,7 @@ status_t MessageQueue::invalidate() { } status_t MessageQueue::queueMessage( - const MessageList::value_type& message, nsecs_t relTime, uint32_t flags) + const sp& message, nsecs_t relTime, uint32_t flags) { Mutex::Autolock _l(mLock); message->when = systemTime() + relTime; @@ -167,13 +168,13 @@ status_t MessageQueue::queueMessage( return NO_ERROR; } -void MessageQueue::dump(const MessageList::value_type& message) +void MessageQueue::dump(const sp& message) { Mutex::Autolock _l(mLock); dumpLocked(message); } -void MessageQueue::dumpLocked(const MessageList::value_type& message) +void MessageQueue::dumpLocked(const sp& message) { LIST::const_iterator cur(mMessages.begin()); LIST::const_iterator end(mMessages.end()); diff --git a/libs/surfaceflinger/MessageQueue.h b/libs/surfaceflinger/MessageQueue.h index dc8138d16..890f809a3 100644 --- a/libs/surfaceflinger/MessageQueue.h +++ b/libs/surfaceflinger/MessageQueue.h @@ -25,6 +25,7 @@ #include #include +#include "Barrier.h" namespace android { @@ -37,7 +38,6 @@ class MessageList List< sp > mList; typedef List< sp > LIST; public: - typedef sp value_type; inline LIST::iterator begin() { return mList.begin(); } inline LIST::const_iterator begin() const { return mList.begin(); } inline LIST::iterator end() { return mList.end(); } @@ -63,11 +63,19 @@ public: // return true if message has a handler virtual bool handler() { return false; } + + // waits for the handler to be processed + void wait() const { barrier.wait(); } + // releases all waiters. this is done automatically if + // handler returns true + void notify() const { barrier.open(); } + protected: virtual ~MessageBase() { } private: + mutable Barrier barrier; friend class LightRefBase; }; @@ -82,42 +90,33 @@ class MessageQueue typedef List< sp > LIST; public: - // this is a work-around the multichar constant warning. A macro would - // work too, but would pollute the namespace. - template - struct WHAT { - static const uint32_t Value = - (uint32_t(a&0xff)<<24)|(uint32_t(b&0xff)<<16)| - (uint32_t(c&0xff)<<8)|uint32_t(d&0xff); - }; - MessageQueue(); ~MessageQueue(); // pre-defined messages enum { - INVALIDATE = WHAT<'_','p','d','t'>::Value + INVALIDATE = '_upd' }; - MessageList::value_type waitMessage(nsecs_t timeout = -1); + sp waitMessage(nsecs_t timeout = -1); - status_t postMessage(const MessageList::value_type& message, + status_t postMessage(const sp& message, nsecs_t reltime=0, uint32_t flags = 0); - + status_t invalidate(); - void dump(const MessageList::value_type& message); + void dump(const sp& message); private: - status_t queueMessage(const MessageList::value_type& message, + status_t queueMessage(const sp& message, nsecs_t reltime, uint32_t flags); - void dumpLocked(const MessageList::value_type& message); + void dumpLocked(const sp& message); Mutex mLock; Condition mCondition; MessageList mMessages; bool mInvalidate; - MessageList::value_type mInvalidateMessage; + sp mInvalidateMessage; }; // --------------------------------------------------------------------------- diff --git a/libs/surfaceflinger/SurfaceFlinger.cpp b/libs/surfaceflinger/SurfaceFlinger.cpp index 62d829b85..5a6893f18 100644 --- a/libs/surfaceflinger/SurfaceFlinger.cpp +++ b/libs/surfaceflinger/SurfaceFlinger.cpp @@ -426,7 +426,7 @@ void SurfaceFlinger::waitForEvent() timeout = waitTime>0 ? waitTime : 0; } - MessageList::value_type msg = mEventQueue.waitMessage(timeout); + sp msg = mEventQueue.waitMessage(timeout); // see if we timed out if (isFrozen()) { @@ -461,9 +461,20 @@ void SurfaceFlinger::signal() const { const_cast(this)->signalEvent(); } -void SurfaceFlinger::signalDelayedEvent(nsecs_t delay) +status_t SurfaceFlinger::postMessageAsync(const sp& msg, + nsecs_t reltime, uint32_t flags) { - mEventQueue.postMessage( new MessageBase(MessageQueue::INVALIDATE), delay); + return mEventQueue.postMessage(msg, reltime, flags); +} + +status_t SurfaceFlinger::postMessageSync(const sp& msg, + nsecs_t reltime, uint32_t flags) +{ + status_t res = mEventQueue.postMessage(msg, reltime, flags); + if (res == NO_ERROR) { + msg->wait(); + } + return res; } // ---------------------------------------------------------------------------- @@ -1135,15 +1146,11 @@ uint32_t SurfaceFlinger::getTransactionFlags(uint32_t flags) return android_atomic_and(~flags, &mTransactionFlags) & flags; } -uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags, nsecs_t delay) +uint32_t SurfaceFlinger::setTransactionFlags(uint32_t flags) { uint32_t old = android_atomic_or(flags, &mTransactionFlags); if ((old & flags)==0) { // wake the server up - if (delay > 0) { - signalDelayedEvent(delay); - } else { - signalEvent(); - } + signalEvent(); } return old; } @@ -1245,7 +1252,7 @@ sp SurfaceFlinger::createSurface(ClientID clientId, int pid, //LOGD("createSurface for pid %d (%d x %d)", pid, w, h); int32_t id = client->generateId(pid); - if (uint32_t(id) >= NUM_LAYERS_MAX) { + if (uint32_t(id) >= SharedBufferStack::NUM_LAYERS_MAX) { LOGE("createSurface() failed, generateId = %d", id); return surfaceHandle; } @@ -1399,7 +1406,7 @@ status_t SurfaceFlinger::destroySurface(const sp& layer) } }; - mEventQueue.postMessage( new MessageDestroySurface(this, layer) ); + postMessageAsync( new MessageDestroySurface(this, layer) ); return NO_ERROR; } @@ -1672,7 +1679,7 @@ Client::~Client() { int32_t Client::generateId(int pid) { const uint32_t i = clz( ~mBitmap ); - if (i >= NUM_LAYERS_MAX) { + if (i >= SharedBufferStack::NUM_LAYERS_MAX) { return NO_MEMORY; } mPid = pid; @@ -1699,7 +1706,8 @@ void Client::free(int32_t id) } bool Client::isValid(int32_t i) const { - return (uint32_t(i) Client::getLayerUser(int32_t i) const { diff --git a/libs/surfaceflinger/SurfaceFlinger.h b/libs/surfaceflinger/SurfaceFlinger.h index 9c8de512e..2558324d9 100644 --- a/libs/surfaceflinger/SurfaceFlinger.h +++ b/libs/surfaceflinger/SurfaceFlinger.h @@ -255,8 +255,6 @@ private: public: // hack to work around gcc 4.0.3 bug void signalEvent(); private: - void signalDelayedEvent(nsecs_t delay); - void handleConsoleEvents(); void handleTransaction(uint32_t transactionFlags); void handleTransactionLocked( @@ -286,7 +284,7 @@ private: void free_resources_l(); uint32_t getTransactionFlags(uint32_t flags); - uint32_t setTransactionFlags(uint32_t flags, nsecs_t delay = 0); + uint32_t setTransactionFlags(uint32_t flags); void commitTransaction(); @@ -310,7 +308,12 @@ private: mutable MessageQueue mEventQueue; - + + status_t postMessageAsync(const sp& msg, + nsecs_t reltime=0, uint32_t flags = 0); + + status_t postMessageSync(const sp& msg, + nsecs_t reltime=0, uint32_t flags = 0); // access must be protected by mStateLock diff --git a/libs/surfaceflinger/TextureManager.cpp b/libs/surfaceflinger/TextureManager.cpp index e5d5302b7..ee2159b3f 100644 --- a/libs/surfaceflinger/TextureManager.cpp +++ b/libs/surfaceflinger/TextureManager.cpp @@ -68,7 +68,7 @@ bool TextureManager::isSupportedYuvFormat(int format) return false; } -status_t TextureManager::initEglImage(Texture* texture, +status_t TextureManager::initEglImage(Image* texture, EGLDisplay dpy, const sp& buffer) { status_t err = NO_ERROR; @@ -108,7 +108,6 @@ status_t TextureManager::initEglImage(Texture* texture, err = INVALID_OPERATION; } else { // Everything went okay! - texture->NPOTAdjust = false; texture->dirty = false; texture->width = clientBuf->width; texture->height = clientBuf->height; diff --git a/libs/surfaceflinger/TextureManager.h b/libs/surfaceflinger/TextureManager.h index 90cb62b29..d0acfe90a 100644 --- a/libs/surfaceflinger/TextureManager.h +++ b/libs/surfaceflinger/TextureManager.h @@ -36,21 +36,24 @@ class GraphicBuffer; // --------------------------------------------------------------------------- -struct Texture { - Texture() : name(-1U), width(0), height(0), - image(EGL_NO_IMAGE_KHR), transform(0), - NPOTAdjust(false), dirty(true) { } +struct Image { + Image() : name(-1U), image(EGL_NO_IMAGE_KHR), width(0), height(0), + transform(0), dirty(true) { } GLuint name; + EGLImageKHR image; GLuint width; GLuint height; + uint32_t transform; + bool dirty; +}; + +struct Texture : public Image { + Texture() : Image(), NPOTAdjust(false) { } GLuint potWidth; GLuint potHeight; GLfloat wScale; GLfloat hScale; - EGLImageKHR image; - uint32_t transform; bool NPOTAdjust; - bool dirty; }; // --------------------------------------------------------------------------- @@ -68,7 +71,7 @@ public: const Region& dirty, const GGLSurface& t); // make active buffer an EGLImage if needed - status_t initEglImage(Texture* texture, + status_t initEglImage(Image* texture, EGLDisplay dpy, const sp& buffer); }; diff --git a/libs/surfaceflinger_client/SharedBufferStack.cpp b/libs/surfaceflinger_client/SharedBufferStack.cpp index dab8ed8a2..5deeabbe3 100644 --- a/libs/surfaceflinger_client/SharedBufferStack.cpp +++ b/libs/surfaceflinger_client/SharedBufferStack.cpp @@ -44,7 +44,7 @@ SharedClient::~SharedClient() { // these functions are used by the clients status_t SharedClient::validate(size_t i) const { - if (uint32_t(i) >= uint32_t(NUM_LAYERS_MAX)) + if (uint32_t(i) >= uint32_t(SharedBufferStack::NUM_LAYERS_MAX)) return BAD_INDEX; return surfaces[i].status; } @@ -144,10 +144,10 @@ Region SharedBufferStack::getDirtyRegion(int buffer) const // ---------------------------------------------------------------------------- SharedBufferBase::SharedBufferBase(SharedClient* sharedClient, - int surface, int num, int32_t identity) + int surface, int32_t identity) : mSharedClient(sharedClient), mSharedStack(sharedClient->surfaces + surface), - mNumBuffers(num), mIdentity(identity) + mIdentity(identity) { } @@ -179,34 +179,16 @@ String8 SharedBufferBase::dump(char const* prefix) const char buffer[SIZE]; String8 result; SharedBufferStack& stack( *mSharedStack ); - int tail = computeTail(); snprintf(buffer, SIZE, - "%s[ head=%2d, available=%2d, queued=%2d, tail=%2d ] " + "%s[ head=%2d, available=%2d, queued=%2d ] " "reallocMask=%08x, inUse=%2d, identity=%d, status=%d", - prefix, stack.head, stack.available, stack.queued, tail, + prefix, stack.head, stack.available, stack.queued, stack.reallocMask, stack.inUse, stack.identity, stack.status); result.append(buffer); - - snprintf(buffer, SIZE, " { "); - result.append(buffer); - - for (int i=0 ; i= NUM_BUFFER_MAX) { + if (uint32_t(head) >= SharedBufferStack::NUM_BUFFER_MAX) { // if stack.head is messed up, we cannot allow the server to // crash (since stack.head is mapped on the client side) stack.status = BAD_VALUE; @@ -318,7 +300,7 @@ SharedBufferServer::RetireUpdate::RetireUpdate( } ssize_t SharedBufferServer::RetireUpdate::operator()() { int32_t head = stack.head; - if (uint32_t(head) >= NUM_BUFFER_MAX) + if (uint32_t(head) >= SharedBufferStack::NUM_BUFFER_MAX) return BAD_VALUE; // Preventively lock the current buffer before updating queued. @@ -361,14 +343,20 @@ ssize_t SharedBufferServer::StatusUpdate::operator()() { SharedBufferClient::SharedBufferClient(SharedClient* sharedClient, int surface, int num, int32_t identity) - : SharedBufferBase(sharedClient, surface, num, identity), - tail(0), undoDequeueTail(0) + : SharedBufferBase(sharedClient, surface, identity), + mNumBuffers(num), tail(0), undoDequeueTail(0) { SharedBufferStack& stack( *mSharedStack ); tail = computeTail(); queued_head = stack.head; } +int32_t SharedBufferClient::computeTail() const +{ + SharedBufferStack& stack( *mSharedStack ); + return (mNumBuffers + stack.head - stack.available + 1) % mNumBuffers; +} + ssize_t SharedBufferClient::dequeue() { SharedBufferStack& stack( *mSharedStack ); @@ -377,7 +365,9 @@ ssize_t SharedBufferClient::dequeue() LOGW("dequeue: tail=%d, head=%d, avail=%d, queued=%d", tail, stack.head, stack.available, stack.queued); } - + + RWLock::AutoRLock _rd(mLock); + const nsecs_t dequeueTime = systemTime(SYSTEM_TIME_THREAD); //LOGD("[%d] about to dequeue a buffer", @@ -407,6 +397,8 @@ ssize_t SharedBufferClient::dequeue() status_t SharedBufferClient::undoDequeue(int buf) { + RWLock::AutoRLock _rd(mLock); + // TODO: we can only undo the previous dequeue, we should // enforce that in the api UndoDequeueUpdate update(this); @@ -419,6 +411,8 @@ status_t SharedBufferClient::undoDequeue(int buf) status_t SharedBufferClient::lock(int buf) { + RWLock::AutoRLock _rd(mLock); + SharedBufferStack& stack( *mSharedStack ); LockCondition condition(this, buf); status_t err = waitForCondition(condition); @@ -427,6 +421,8 @@ status_t SharedBufferClient::lock(int buf) status_t SharedBufferClient::queue(int buf) { + RWLock::AutoRLock _rd(mLock); + SharedBufferStack& stack( *mSharedStack ); queued_head = (queued_head + 1) % mNumBuffers; @@ -460,21 +456,29 @@ status_t SharedBufferClient::setDirtyRegion(int buf, const Region& reg) return stack.setDirtyRegion(buf, reg); } -status_t SharedBufferClient::setBufferCount(int bufferCount) +status_t SharedBufferClient::setBufferCount( + int bufferCount, const SetBufferCountCallback& ipc) { SharedBufferStack& stack( *mSharedStack ); - if (uint32_t(bufferCount) >= NUM_BUFFER_MAX) + if (uint32_t(bufferCount) >= SharedBufferStack::NUM_BUFFER_MAX) return BAD_VALUE; - mNumBuffers = bufferCount; - queued_head = (stack.head + stack.queued) % mNumBuffers; - return NO_ERROR; + + RWLock::AutoWLock _wr(mLock); + + status_t err = ipc(bufferCount); + if (err == NO_ERROR) { + mNumBuffers = bufferCount; + queued_head = (stack.head + stack.queued) % mNumBuffers; + } + return err; } // ---------------------------------------------------------------------------- SharedBufferServer::SharedBufferServer(SharedClient* sharedClient, int surface, int num, int32_t identity) - : SharedBufferBase(sharedClient, surface, num, identity) + : SharedBufferBase(sharedClient, surface, identity), + mNumBuffers(num) { mSharedStack->init(identity); mSharedStack->head = num-1; @@ -490,10 +494,12 @@ SharedBufferServer::SharedBufferServer(SharedClient* sharedClient, ssize_t SharedBufferServer::retireAndLock() { + RWLock::AutoRLock _l(mLock); + RetireUpdate update(this, mNumBuffers); ssize_t buf = updateCondition( update ); if (buf >= 0) { - if (uint32_t(buf) >= NUM_BUFFER_MAX) + if (uint32_t(buf) >= SharedBufferStack::NUM_BUFFER_MAX) return BAD_VALUE; SharedBufferStack& stack( *mSharedStack ); buf = stack.index[buf]; @@ -520,6 +526,8 @@ void SharedBufferServer::setStatus(status_t status) status_t SharedBufferServer::reallocate() { + RWLock::AutoRLock _l(mLock); + SharedBufferStack& stack( *mSharedStack ); uint32_t mask = (1<= NUM_BUFFER_MAX) + if (uint32_t(newNumBuffers) >= SharedBufferStack::NUM_BUFFER_MAX) return BAD_VALUE; + RWLock::AutoWLock _l(mLock); + // for now we're not supporting shrinking const int numBuffers = mNumBuffers; if (newNumBuffers < numBuffers) @@ -569,7 +584,7 @@ status_t SharedBufferServer::resize(int newNumBuffers) // read the head, make sure it's valid int32_t head = stack.head; - if (uint32_t(head) >= NUM_BUFFER_MAX) + if (uint32_t(head) >= SharedBufferStack::NUM_BUFFER_MAX) return BAD_VALUE; int base = numBuffers; diff --git a/libs/surfaceflinger_client/Surface.cpp b/libs/surfaceflinger_client/Surface.cpp index afbeafbac..4d5c0b691 100644 --- a/libs/surfaceflinger_client/Surface.cpp +++ b/libs/surfaceflinger_client/Surface.cpp @@ -678,19 +678,18 @@ int Surface::setBufferCount(int bufferCount) sp s(mSurface); if (s == 0) return NO_INIT; - // FIXME: this needs to be synchronized dequeue/queue + class SetBufferCountIPC : public SharedBufferClient::SetBufferCountCallback { + sp surface; + virtual status_t operator()(int bufferCount) const { + return surface->setBufferCount(bufferCount); + } + public: + SetBufferCountIPC(const sp& surface) : surface(surface) { } + } ipc(s); - status_t err = s->setBufferCount(bufferCount); + status_t err = mSharedBufferClient->setBufferCount(bufferCount, ipc); LOGE_IF(err, "ISurface::setBufferCount(%d) returned %s", bufferCount, strerror(-err)); - if (err == NO_ERROR) { - err = mSharedBufferClient->getStatus(); - LOGE_IF(err, "Surface (identity=%d) state = %d", mIdentity, err); - if (!err) { - // update our local copy of the buffer count - mSharedBufferClient->setBufferCount(bufferCount); - } - } return err; } diff --git a/libs/surfaceflinger_client/SurfaceComposerClient.cpp b/libs/surfaceflinger_client/SurfaceComposerClient.cpp index 85167da17..9ac73d231 100644 --- a/libs/surfaceflinger_client/SurfaceComposerClient.cpp +++ b/libs/surfaceflinger_client/SurfaceComposerClient.cpp @@ -250,7 +250,7 @@ void SurfaceComposerClient::dispose() status_t SurfaceComposerClient::getDisplayInfo( DisplayID dpy, DisplayInfo* info) { - if (uint32_t(dpy)>=NUM_DISPLAY_MAX) + if (uint32_t(dpy)>=SharedBufferStack::NUM_DISPLAY_MAX) return BAD_VALUE; volatile surface_flinger_cblk_t const * cblk = get_cblk(); @@ -268,7 +268,7 @@ status_t SurfaceComposerClient::getDisplayInfo( ssize_t SurfaceComposerClient::getDisplayWidth(DisplayID dpy) { - if (uint32_t(dpy)>=NUM_DISPLAY_MAX) + if (uint32_t(dpy)>=SharedBufferStack::NUM_DISPLAY_MAX) return BAD_VALUE; volatile surface_flinger_cblk_t const * cblk = get_cblk(); volatile display_cblk_t const * dcblk = cblk->displays + dpy; @@ -277,7 +277,7 @@ ssize_t SurfaceComposerClient::getDisplayWidth(DisplayID dpy) ssize_t SurfaceComposerClient::getDisplayHeight(DisplayID dpy) { - if (uint32_t(dpy)>=NUM_DISPLAY_MAX) + if (uint32_t(dpy)>=SharedBufferStack::NUM_DISPLAY_MAX) return BAD_VALUE; volatile surface_flinger_cblk_t const * cblk = get_cblk(); volatile display_cblk_t const * dcblk = cblk->displays + dpy; @@ -286,7 +286,7 @@ ssize_t SurfaceComposerClient::getDisplayHeight(DisplayID dpy) ssize_t SurfaceComposerClient::getDisplayOrientation(DisplayID dpy) { - if (uint32_t(dpy)>=NUM_DISPLAY_MAX) + if (uint32_t(dpy)>=SharedBufferStack::NUM_DISPLAY_MAX) return BAD_VALUE; volatile surface_flinger_cblk_t const * cblk = get_cblk(); volatile display_cblk_t const * dcblk = cblk->displays + dpy; @@ -345,7 +345,7 @@ sp SurfaceComposerClient::createSurface( sp surface = mClient->createSurface(&data, pid, name, display, w, h, format, flags); if (surface != 0) { - if (uint32_t(data.token) < NUM_LAYERS_MAX) { + if (uint32_t(data.token) < SharedBufferStack::NUM_LAYERS_MAX) { result = new SurfaceControl(this, surface, data, w, h, format, flags); } } diff --git a/libs/surfaceflinger_client/tests/SharedBufferStack/SharedBufferStackTest.cpp b/libs/surfaceflinger_client/tests/SharedBufferStack/SharedBufferStackTest.cpp index f490a65fc..f409f4828 100644 --- a/libs/surfaceflinger_client/tests/SharedBufferStack/SharedBufferStackTest.cpp +++ b/libs/surfaceflinger_client/tests/SharedBufferStack/SharedBufferStackTest.cpp @@ -54,8 +54,16 @@ int main(int argc, char** argv) printf("resize test\n"); - s.resize(6); - c.setBufferCount(6); + class SetBufferCountIPC : public SharedBufferClient::SetBufferCountCallback { + SharedBufferServer& s; + virtual status_t operator()(int bufferCount) const { + return s.resize(bufferCount); + } + public: + SetBufferCountIPC(SharedBufferServer& s) : s(s) { } + } resize(s); + + c.setBufferCount(6, resize); int list3[6] = {3, 2, 1, 4, 5, 0}; test0(s, c, 6, list3);