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/*
* Copyright (C) 2012 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_NDEBUG 0
#define LOG_TAG "BufferItemConsumer"
//#define ATRACE_TAG ATRACE_TAG_GRAPHICS
#include <utils/Errors.h>
#include <utils/Log.h>
#include <inttypes.h>
#include <com_android_graphics_libgui_flags.h>
#include <gui/BufferItem.h>
#include <gui/BufferItemConsumer.h>
#include <gui/Surface.h>
#include <ui/BufferQueueDefs.h>
#include <ui/GraphicBuffer.h>
#define BI_LOGV(x, ...) ALOGV("[%s] " x, mName.c_str(), ##__VA_ARGS__)
// #define BI_LOGD(x, ...) ALOGD("[%s] " x, mName.c_str(), ##__VA_ARGS__)
// #define BI_LOGI(x, ...) ALOGI("[%s] " x, mName.c_str(), ##__VA_ARGS__)
// #define BI_LOGW(x, ...) ALOGW("[%s] " x, mName.c_str(), ##__VA_ARGS__)
#define BI_LOGE(x, ...) ALOGE("[%s] " x, mName.c_str(), ##__VA_ARGS__)
namespace android {
std::tuple<sp<BufferItemConsumer>, sp<Surface>> BufferItemConsumer::create(
uint64_t consumerUsage, int bufferCount, bool controlledByApp,
bool isConsumerSurfaceFlinger) {
#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
sp<BufferItemConsumer> bufferItemConsumer =
sp<BufferItemConsumer>::make(consumerUsage, bufferCount, controlledByApp,
isConsumerSurfaceFlinger);
return {bufferItemConsumer, bufferItemConsumer->getSurface()};
#else
sp<IGraphicBufferProducer> igbp;
sp<IGraphicBufferConsumer> igbc;
BufferQueue::createBufferQueue(&igbp, &igbc, isConsumerSurfaceFlinger);
sp<BufferItemConsumer> bufferItemConsumer =
sp<BufferItemConsumer>::make(igbc, consumerUsage, bufferCount, controlledByApp);
return {bufferItemConsumer, sp<Surface>::make(igbp, controlledByApp)};
#endif
}
sp<BufferItemConsumer> BufferItemConsumer::create(const sp<IGraphicBufferConsumer>& consumer,
uint64_t consumerUsage, int bufferCount,
bool controlledByApp) {
return sp<BufferItemConsumer>::make(consumer, consumerUsage, bufferCount, controlledByApp);
}
#if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
BufferItemConsumer::BufferItemConsumer(uint64_t consumerUsage, int bufferCount,
bool controlledByApp, bool isConsumerSurfaceFlinger)
: ConsumerBase(controlledByApp, isConsumerSurfaceFlinger) {
initialize(consumerUsage, bufferCount);
}
BufferItemConsumer::BufferItemConsumer(const sp<IGraphicBufferProducer>& producer,
const sp<IGraphicBufferConsumer>& consumer,
uint64_t consumerUsage, int bufferCount,
bool controlledByApp)
: ConsumerBase(producer, consumer, controlledByApp) {
initialize(consumerUsage, bufferCount);
}
#endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
BufferItemConsumer::BufferItemConsumer(
const sp<IGraphicBufferConsumer>& consumer, uint64_t consumerUsage,
int bufferCount, bool controlledByApp) :
ConsumerBase(consumer, controlledByApp)
{
initialize(consumerUsage, bufferCount);
}
void BufferItemConsumer::initialize(uint64_t consumerUsage, int bufferCount) {
status_t err = mConsumer->setConsumerUsageBits(consumerUsage);
LOG_ALWAYS_FATAL_IF(err != OK, "Failed to set consumer usage bits to %#" PRIx64, consumerUsage);
if (bufferCount != DEFAULT_MAX_BUFFERS) {
err = mConsumer->setMaxAcquiredBufferCount(bufferCount);
LOG_ALWAYS_FATAL_IF(err != OK, "Failed to set max acquired buffer count to %d",
bufferCount);
}
}
BufferItemConsumer::~BufferItemConsumer() {}
void BufferItemConsumer::setBufferFreedListener(
const wp<BufferFreedListener>& listener) {
Mutex::Autolock _l(mMutex);
mBufferFreedListener = listener;
}
status_t BufferItemConsumer::acquireBuffer(BufferItem *item,
nsecs_t presentWhen, bool waitForFence) {
status_t err;
if (!item) return BAD_VALUE;
Mutex::Autolock _l(mMutex);
err = acquireBufferLocked(item, presentWhen);
if (err != OK) {
if (err != NO_BUFFER_AVAILABLE) {
BI_LOGE("Error acquiring buffer: %s (%d)", strerror(err), err);
}
return err;
}
if (waitForFence) {
err = item->mFence->waitForever("BufferItemConsumer::acquireBuffer");
if (err != OK) {
BI_LOGE("Failed to wait for fence of acquired buffer: %s (%d)",
strerror(-err), err);
return err;
}
}
item->mGraphicBuffer = mSlots[item->mSlot].mGraphicBuffer;
return OK;
}
status_t BufferItemConsumer::attachBuffer(const sp<GraphicBuffer>& buffer) {
if (!buffer) {
BI_LOGE("BufferItemConsumer::attachBuffer no input buffer specified.");
return BAD_VALUE;
}
Mutex::Autolock _l(mMutex);
int slot = INVALID_BUFFER_SLOT;
status_t status = mConsumer->attachBuffer(&slot, buffer);
if (status != OK) {
BI_LOGE("BufferItemConsumer::attachBuffer unable to attach buffer %d", status);
return status;
}
mSlots[slot] = {
.mGraphicBuffer = buffer,
.mFence = nullptr,
.mFrameNumber = 0,
};
return OK;
}
status_t BufferItemConsumer::releaseBuffer(const BufferItem &item,
const sp<Fence>& releaseFence) {
Mutex::Autolock _l(mMutex);
return releaseBufferSlotLocked(item.mSlot, item.mGraphicBuffer, releaseFence);
}
status_t BufferItemConsumer::releaseBuffer(const sp<GraphicBuffer>& buffer,
const sp<Fence>& releaseFence) {
Mutex::Autolock _l(mMutex);
if (buffer == nullptr) {
return BAD_VALUE;
}
int slotIndex = getSlotForBufferLocked(buffer);
if (slotIndex == INVALID_BUFFER_SLOT) {
return BAD_VALUE;
}
return releaseBufferSlotLocked(slotIndex, buffer, releaseFence);
}
status_t BufferItemConsumer::releaseBufferSlotLocked(int slotIndex, const sp<GraphicBuffer>& buffer,
const sp<Fence>& releaseFence) {
status_t err;
err = addReleaseFenceLocked(slotIndex, buffer, releaseFence);
if (err != OK) {
BI_LOGE("Failed to addReleaseFenceLocked");
}
err = releaseBufferLocked(slotIndex, buffer);
if (err != OK && err != IGraphicBufferConsumer::STALE_BUFFER_SLOT) {
BI_LOGE("Failed to release buffer: %s (%d)",
strerror(-err), err);
}
return err;
}
void BufferItemConsumer::freeBufferLocked(int slotIndex) {
sp<BufferFreedListener> listener = mBufferFreedListener.promote();
if (listener != nullptr && mSlots[slotIndex].mGraphicBuffer != nullptr) {
// Fire callback if we have a listener registered and the buffer being freed is valid.
BI_LOGV("actually calling onBufferFreed");
listener->onBufferFreed(mSlots[slotIndex].mGraphicBuffer);
}
ConsumerBase::freeBufferLocked(slotIndex);
}
} // namespace android
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