The Tor Browser: comparison widget/gonk/nativewindow/GonkConsumerBaseJB.cpp

--1:000000000000
+:b71cfc7e3d9d
+/*
+* Copyright (C) 2010 The Android Open Source Project
+* Copyright (C) 2013 Mozilla Foundation
+*
+* 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 "GonkConsumerBase"
+#define ATRACE_TAG ATRACE_TAG_GRAPHICS
+//#define LOG_NDEBUG 0
+#define EGL_EGLEXT_PROTOTYPES
+#include <hardware/hardware.h>
+#include <gui/IGraphicBufferAlloc.h>
+#include <utils/Log.h>
+#include <utils/String8.h>
+#include "GonkConsumerBaseJB.h"
+// Macros for including the GonkConsumerBase name in log messages
+#define CB_LOGV(...) __android_log_print(ANDROID_LOG_VERBOSE, LOG_TAG, __VA_ARGS__)
+#define CB_LOGD(...) __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, __VA_ARGS__)
+#define CB_LOGI(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)
+#define CB_LOGW(...) __android_log_print(ANDROID_LOG_WARN, LOG_TAG, __VA_ARGS__)
+#define CB_LOGE(...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__)
+namespace android {
+// Get an ID that's unique within this process.
+static int32_t createProcessUniqueId() {
+static volatile int32_t globalCounter = 0;
+return android_atomic_inc(&globalCounter);
+}
+GonkConsumerBase::GonkConsumerBase(const sp<GonkBufferQueue>& bufferQueue) :
+mAbandoned(false),
+mBufferQueue(bufferQueue) {
+// Choose a name using the PID and a process-unique ID.
+mName = String8::format("unnamed-%d-%d", getpid(), createProcessUniqueId());
+// Note that we can't create an sp<...>(this) in a ctor that will not keep a
+// reference once the ctor ends, as that would cause the refcount of 'this'
+// dropping to 0 at the end of the ctor.  Since all we need is a wp<...>
+// that's what we create.
+wp<GonkBufferQueue::ConsumerListener> listener;
+sp<GonkBufferQueue::ConsumerListener> proxy;
+listener = static_cast<GonkBufferQueue::ConsumerListener*>(this);
+proxy = new GonkBufferQueue::ProxyConsumerListener(listener);
+status_t err = mBufferQueue->consumerConnect(proxy);
+if (err != NO_ERROR) {
+CB_LOGE("GonkConsumerBase: error connecting to GonkBufferQueue: %s (%d)",
+strerror(-err), err);
+} else {
+mBufferQueue->setConsumerName(mName);
+}
+}
+GonkConsumerBase::~GonkConsumerBase() {
+CB_LOGV("~GonkConsumerBase");
+Mutex::Autolock lock(mMutex);
+// Verify that abandon() has been called before we get here.  This should
+// be done by GonkConsumerBase::onLastStrongRef(), but it's possible for a
+// derived class to override that method and not call
+// GonkConsumerBase::onLastStrongRef().
+LOG_ALWAYS_FATAL_IF(!mAbandoned, "[%s] ~GonkConsumerBase was called, but the "
+"consumer is not abandoned!", mName.string());
+}
+void GonkConsumerBase::onLastStrongRef(const void* id) {
+abandon();
+}
+void GonkConsumerBase::freeBufferLocked(int slotIndex) {
+CB_LOGV("freeBufferLocked: slotIndex=%d", slotIndex);
+mSlots[slotIndex].mGraphicBuffer = 0;
+mSlots[slotIndex].mFence = Fence::NO_FENCE;
+}
+// Used for refactoring, should not be in final interface
+sp<GonkBufferQueue> GonkConsumerBase::getBufferQueue() const {
+Mutex::Autolock lock(mMutex);
+return mBufferQueue;
+}
+void GonkConsumerBase::onFrameAvailable() {
+CB_LOGV("onFrameAvailable");
+sp<FrameAvailableListener> listener;
+{ // scope for the lock
+Mutex::Autolock lock(mMutex);
+#if ANDROID_VERSION == 17
+listener = mFrameAvailableListener;
+#else
+listener = mFrameAvailableListener.promote();
+#endif
+}
+if (listener != NULL) {
+CB_LOGV("actually calling onFrameAvailable");
+listener->onFrameAvailable();
+}
+}
+void GonkConsumerBase::onBuffersReleased() {
+Mutex::Autolock lock(mMutex);
+CB_LOGV("onBuffersReleased");
+if (mAbandoned) {
+// Nothing to do if we're already abandoned.
+return;
+}
+uint32_t mask = 0;
+mBufferQueue->getReleasedBuffers(&mask);
+for (int i = 0; i < GonkBufferQueue::NUM_BUFFER_SLOTS; i++) {
+if (mask & (1 << i)) {
+freeBufferLocked(i);
+}
+}
+}
+void GonkConsumerBase::abandon() {
+CB_LOGV("abandon");
+Mutex::Autolock lock(mMutex);
+if (!mAbandoned) {
+abandonLocked();
+mAbandoned = true;
+}
+}
+void GonkConsumerBase::abandonLocked() {
+	CB_LOGV("abandonLocked");
+for (int i =0; i < GonkBufferQueue::NUM_BUFFER_SLOTS; i++) {
+freeBufferLocked(i);
+}
+// disconnect from the GonkBufferQueue
+mBufferQueue->consumerDisconnect();
+mBufferQueue.clear();
+}
+void GonkConsumerBase::setFrameAvailableListener(
+#if ANDROID_VERSION == 17
+const sp<FrameAvailableListener>& listener) {
+#else
+const wp<FrameAvailableListener>& listener) {
+#endif
+CB_LOGV("setFrameAvailableListener");
+Mutex::Autolock lock(mMutex);
+mFrameAvailableListener = listener;
+}
+void GonkConsumerBase::dump(String8& result) const {
+char buffer[1024];
+dump(result, "", buffer, 1024);
+}
+void GonkConsumerBase::dump(String8& result, const char* prefix,
+char* buffer, size_t size) const {
+Mutex::Autolock _l(mMutex);
+dumpLocked(result, prefix, buffer, size);
+}
+void GonkConsumerBase::dumpLocked(String8& result, const char* prefix,
+char* buffer, size_t SIZE) const {
+snprintf(buffer, SIZE, "%smAbandoned=%d\n", prefix, int(mAbandoned));
+result.append(buffer);
+if (!mAbandoned) {
+mBufferQueue->dump(result, prefix, buffer, SIZE);
+}
+}
+status_t GonkConsumerBase::acquireBufferLocked(GonkBufferQueue::BufferItem *item) {
+status_t err = mBufferQueue->acquireBuffer(item);
+if (err != NO_ERROR) {
+return err;
+}
+if (item->mGraphicBuffer != NULL) {
+mSlots[item->mBuf].mGraphicBuffer = item->mGraphicBuffer;
+}
+mSlots[item->mBuf].mFence = item->mFence;
+CB_LOGV("acquireBufferLocked: -> slot=%d", item->mBuf);
+return OK;
+}
+status_t GonkConsumerBase::addReleaseFence(int slot, const sp<Fence>& fence) {
+Mutex::Autolock lock(mMutex);
+return addReleaseFenceLocked(slot, fence);
+}
+status_t GonkConsumerBase::addReleaseFenceLocked(int slot, const sp<Fence>& fence) {
+CB_LOGV("addReleaseFenceLocked: slot=%d", slot);
+if (!mSlots[slot].mFence.get()) {
+mSlots[slot].mFence = fence;
+} else {
+sp<Fence> mergedFence = Fence::merge(
+String8::format("%.28s:%d", mName.string(), slot),
+mSlots[slot].mFence, fence);
+if (!mergedFence.get()) {
+CB_LOGE("failed to merge release fences");
+// synchronization is broken, the best we can do is hope fences
+// signal in order so the new fence will act like a union
+mSlots[slot].mFence = fence;
+return BAD_VALUE;
+}
+mSlots[slot].mFence = mergedFence;
+}
+return OK;
+}
+status_t GonkConsumerBase::releaseBufferLocked(int slot) {
+CB_LOGV("releaseBufferLocked: slot=%d", slot);
+status_t err = mBufferQueue->releaseBuffer(slot, mSlots[slot].mFence);
+if (err == GonkBufferQueue::STALE_BUFFER_SLOT) {
+freeBufferLocked(slot);
+}
+mSlots[slot].mFence = Fence::NO_FENCE;
+return err;
+}
+} // namespace android

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comparison: widget/gonk/nativewindow/GonkConsumerBaseJB.cpp

widget/gonk/nativewindow/GonkConsumerBaseJB.cpp