dc13c5b85b
This completes the plumbing from ConsumerListener::onFrameReplaced into SurfaceFlinger (and other consumers that may care). Change-Id: I376e78ace95d6748e8662e6b4d47c0dfa697a300
301 lines
9.0 KiB
C++
301 lines
9.0 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <inttypes.h>
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#define LOG_TAG "ConsumerBase"
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#define ATRACE_TAG ATRACE_TAG_GRAPHICS
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//#define LOG_NDEBUG 0
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#define EGL_EGLEXT_PROTOTYPES
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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#include <hardware/hardware.h>
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#include <gui/BufferItem.h>
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#include <gui/IGraphicBufferAlloc.h>
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#include <gui/ISurfaceComposer.h>
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#include <gui/SurfaceComposerClient.h>
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#include <gui/ConsumerBase.h>
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#include <private/gui/ComposerService.h>
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#include <utils/Log.h>
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#include <utils/String8.h>
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#include <utils/Trace.h>
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// Macros for including the ConsumerBase name in log messages
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#define CB_LOGV(x, ...) ALOGV("[%s] " x, mName.string(), ##__VA_ARGS__)
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//#define CB_LOGD(x, ...) ALOGD("[%s] " x, mName.string(), ##__VA_ARGS__)
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//#define CB_LOGI(x, ...) ALOGI("[%s] " x, mName.string(), ##__VA_ARGS__)
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//#define CB_LOGW(x, ...) ALOGW("[%s] " x, mName.string(), ##__VA_ARGS__)
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#define CB_LOGE(x, ...) ALOGE("[%s] " x, mName.string(), ##__VA_ARGS__)
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namespace android {
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// Get an ID that's unique within this process.
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static int32_t createProcessUniqueId() {
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static volatile int32_t globalCounter = 0;
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return android_atomic_inc(&globalCounter);
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}
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ConsumerBase::ConsumerBase(const sp<IGraphicBufferConsumer>& bufferQueue, bool controlledByApp) :
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mAbandoned(false),
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mConsumer(bufferQueue) {
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// Choose a name using the PID and a process-unique ID.
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mName = String8::format("unnamed-%d-%d", getpid(), createProcessUniqueId());
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// Note that we can't create an sp<...>(this) in a ctor that will not keep a
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// reference once the ctor ends, as that would cause the refcount of 'this'
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// dropping to 0 at the end of the ctor. Since all we need is a wp<...>
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// that's what we create.
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wp<ConsumerListener> listener = static_cast<ConsumerListener*>(this);
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sp<IConsumerListener> proxy = new BufferQueue::ProxyConsumerListener(listener);
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status_t err = mConsumer->consumerConnect(proxy, controlledByApp);
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if (err != NO_ERROR) {
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CB_LOGE("ConsumerBase: error connecting to BufferQueue: %s (%d)",
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strerror(-err), err);
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} else {
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mConsumer->setConsumerName(mName);
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}
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}
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ConsumerBase::~ConsumerBase() {
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CB_LOGV("~ConsumerBase");
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Mutex::Autolock lock(mMutex);
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// Verify that abandon() has been called before we get here. This should
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// be done by ConsumerBase::onLastStrongRef(), but it's possible for a
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// derived class to override that method and not call
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// ConsumerBase::onLastStrongRef().
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LOG_ALWAYS_FATAL_IF(!mAbandoned, "[%s] ~ConsumerBase was called, but the "
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"consumer is not abandoned!", mName.string());
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}
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void ConsumerBase::onLastStrongRef(const void* id __attribute__((unused))) {
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abandon();
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}
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void ConsumerBase::freeBufferLocked(int slotIndex) {
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CB_LOGV("freeBufferLocked: slotIndex=%d", slotIndex);
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mSlots[slotIndex].mGraphicBuffer = 0;
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mSlots[slotIndex].mFence = Fence::NO_FENCE;
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mSlots[slotIndex].mFrameNumber = 0;
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}
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void ConsumerBase::onFrameAvailable(const BufferItem& item) {
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CB_LOGV("onFrameAvailable");
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sp<FrameAvailableListener> listener;
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{ // scope for the lock
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Mutex::Autolock lock(mMutex);
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listener = mFrameAvailableListener.promote();
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}
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if (listener != NULL) {
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CB_LOGV("actually calling onFrameAvailable");
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listener->onFrameAvailable(item);
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}
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}
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void ConsumerBase::onFrameReplaced(const BufferItem &item) {
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CB_LOGV("onFrameReplaced");
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sp<FrameAvailableListener> listener;
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{
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Mutex::Autolock lock(mMutex);
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listener = mFrameAvailableListener.promote();
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}
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if (listener != NULL) {
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CB_LOGV("actually calling onFrameReplaced");
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listener->onFrameReplaced(item);
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}
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}
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void ConsumerBase::onBuffersReleased() {
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Mutex::Autolock lock(mMutex);
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CB_LOGV("onBuffersReleased");
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if (mAbandoned) {
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// Nothing to do if we're already abandoned.
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return;
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}
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uint64_t mask = 0;
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mConsumer->getReleasedBuffers(&mask);
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for (int i = 0; i < BufferQueue::NUM_BUFFER_SLOTS; i++) {
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if (mask & (1ULL << i)) {
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freeBufferLocked(i);
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}
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}
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}
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void ConsumerBase::onSidebandStreamChanged() {
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}
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void ConsumerBase::abandon() {
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CB_LOGV("abandon");
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Mutex::Autolock lock(mMutex);
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if (!mAbandoned) {
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abandonLocked();
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mAbandoned = true;
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}
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}
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void ConsumerBase::abandonLocked() {
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CB_LOGV("abandonLocked");
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for (int i =0; i < BufferQueue::NUM_BUFFER_SLOTS; i++) {
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freeBufferLocked(i);
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}
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// disconnect from the BufferQueue
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mConsumer->consumerDisconnect();
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mConsumer.clear();
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}
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void ConsumerBase::setFrameAvailableListener(
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const wp<FrameAvailableListener>& listener) {
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CB_LOGV("setFrameAvailableListener");
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Mutex::Autolock lock(mMutex);
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mFrameAvailableListener = listener;
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}
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status_t ConsumerBase::detachBuffer(int slot) {
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CB_LOGV("detachBuffer");
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Mutex::Autolock lock(mMutex);
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status_t result = mConsumer->detachBuffer(slot);
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if (result != NO_ERROR) {
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CB_LOGE("Failed to detach buffer: %d", result);
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return result;
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}
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freeBufferLocked(slot);
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return result;
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}
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void ConsumerBase::dump(String8& result) const {
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dump(result, "");
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}
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void ConsumerBase::dump(String8& result, const char* prefix) const {
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Mutex::Autolock _l(mMutex);
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dumpLocked(result, prefix);
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}
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void ConsumerBase::dumpLocked(String8& result, const char* prefix) const {
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result.appendFormat("%smAbandoned=%d\n", prefix, int(mAbandoned));
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if (!mAbandoned) {
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mConsumer->dump(result, prefix);
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}
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}
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status_t ConsumerBase::acquireBufferLocked(BufferItem *item,
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nsecs_t presentWhen) {
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status_t err = mConsumer->acquireBuffer(item, presentWhen);
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if (err != NO_ERROR) {
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return err;
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}
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if (item->mGraphicBuffer != NULL) {
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mSlots[item->mBuf].mGraphicBuffer = item->mGraphicBuffer;
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}
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mSlots[item->mBuf].mFrameNumber = item->mFrameNumber;
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mSlots[item->mBuf].mFence = item->mFence;
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CB_LOGV("acquireBufferLocked: -> slot=%d/%" PRIu64,
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item->mBuf, item->mFrameNumber);
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return OK;
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}
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status_t ConsumerBase::addReleaseFence(int slot,
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const sp<GraphicBuffer> graphicBuffer, const sp<Fence>& fence) {
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Mutex::Autolock lock(mMutex);
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return addReleaseFenceLocked(slot, graphicBuffer, fence);
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}
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status_t ConsumerBase::addReleaseFenceLocked(int slot,
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const sp<GraphicBuffer> graphicBuffer, const sp<Fence>& fence) {
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CB_LOGV("addReleaseFenceLocked: slot=%d", slot);
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// If consumer no longer tracks this graphicBuffer, we can safely
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// drop this fence, as it will never be received by the producer.
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if (!stillTracking(slot, graphicBuffer)) {
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return OK;
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}
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if (!mSlots[slot].mFence.get()) {
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mSlots[slot].mFence = fence;
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} else {
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sp<Fence> mergedFence = Fence::merge(
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String8::format("%.28s:%d", mName.string(), slot),
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mSlots[slot].mFence, fence);
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if (!mergedFence.get()) {
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CB_LOGE("failed to merge release fences");
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// synchronization is broken, the best we can do is hope fences
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// signal in order so the new fence will act like a union
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mSlots[slot].mFence = fence;
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return BAD_VALUE;
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}
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mSlots[slot].mFence = mergedFence;
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}
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return OK;
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}
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status_t ConsumerBase::releaseBufferLocked(
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int slot, const sp<GraphicBuffer> graphicBuffer,
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EGLDisplay display, EGLSyncKHR eglFence) {
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// If consumer no longer tracks this graphicBuffer (we received a new
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// buffer on the same slot), the buffer producer is definitely no longer
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// tracking it.
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if (!stillTracking(slot, graphicBuffer)) {
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return OK;
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}
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CB_LOGV("releaseBufferLocked: slot=%d/%" PRIu64,
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slot, mSlots[slot].mFrameNumber);
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status_t err = mConsumer->releaseBuffer(slot, mSlots[slot].mFrameNumber,
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display, eglFence, mSlots[slot].mFence);
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if (err == IGraphicBufferConsumer::STALE_BUFFER_SLOT) {
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freeBufferLocked(slot);
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}
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mSlots[slot].mFence = Fence::NO_FENCE;
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return err;
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}
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bool ConsumerBase::stillTracking(int slot,
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const sp<GraphicBuffer> graphicBuffer) {
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if (slot < 0 || slot >= BufferQueue::NUM_BUFFER_SLOTS) {
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return false;
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}
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return (mSlots[slot].mGraphicBuffer != NULL &&
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mSlots[slot].mGraphicBuffer->handle == graphicBuffer->handle);
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}
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} // namespace android
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