/* * 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 "CpuConsumer" //#define ATRACE_TAG ATRACE_TAG_GRAPHICS #include #include #include //#define CC_LOGV(x, ...) ALOGV("[%s] " x, mName.string(), ##__VA_ARGS__) //#define CC_LOGD(x, ...) ALOGD("[%s] " x, mName.string(), ##__VA_ARGS__) //#define CC_LOGI(x, ...) ALOGI("[%s] " x, mName.string(), ##__VA_ARGS__) #define CC_LOGW(x, ...) ALOGW("[%s] " x, mName.string(), ##__VA_ARGS__) #define CC_LOGE(x, ...) ALOGE("[%s] " x, mName.string(), ##__VA_ARGS__) namespace android { CpuConsumer::CpuConsumer(const sp& bq, size_t maxLockedBuffers, bool controlledByApp) : ConsumerBase(bq, controlledByApp), mMaxLockedBuffers(maxLockedBuffers), mCurrentLockedBuffers(0) { // Create tracking entries for locked buffers mAcquiredBuffers.insertAt(0, maxLockedBuffers); mConsumer->setConsumerUsageBits(GRALLOC_USAGE_SW_READ_OFTEN); mConsumer->setMaxAcquiredBufferCount(static_cast(maxLockedBuffers)); } CpuConsumer::~CpuConsumer() { // ConsumerBase destructor does all the work. } void CpuConsumer::setName(const String8& name) { Mutex::Autolock _l(mMutex); mName = name; mConsumer->setConsumerName(name); } status_t CpuConsumer::setDefaultBufferSize(uint32_t width, uint32_t height) { Mutex::Autolock _l(mMutex); return mConsumer->setDefaultBufferSize(width, height); } status_t CpuConsumer::setDefaultBufferFormat(PixelFormat defaultFormat) { Mutex::Autolock _l(mMutex); return mConsumer->setDefaultBufferFormat(defaultFormat); } status_t CpuConsumer::lockNextBuffer(LockedBuffer *nativeBuffer) { status_t err; if (!nativeBuffer) return BAD_VALUE; if (mCurrentLockedBuffers == mMaxLockedBuffers) { CC_LOGW("Max buffers have been locked (%zd), cannot lock anymore.", mMaxLockedBuffers); return NOT_ENOUGH_DATA; } BufferQueue::BufferItem b; Mutex::Autolock _l(mMutex); err = acquireBufferLocked(&b, 0); if (err != OK) { if (err == BufferQueue::NO_BUFFER_AVAILABLE) { return BAD_VALUE; } else { CC_LOGE("Error acquiring buffer: %s (%d)", strerror(err), err); return err; } } int buf = b.mBuf; void *bufferPointer = NULL; android_ycbcr ycbcr = android_ycbcr(); if (b.mFence.get()) { if (mSlots[buf].mGraphicBuffer->getPixelFormat() == HAL_PIXEL_FORMAT_YCbCr_420_888) { err = mSlots[buf].mGraphicBuffer->lockAsyncYCbCr( GraphicBuffer::USAGE_SW_READ_OFTEN, b.mCrop, &ycbcr, b.mFence->dup()); if (err != OK) { CC_LOGE("Unable to lock YCbCr buffer for CPU reading: %s (%d)", strerror(-err), err); return err; } bufferPointer = ycbcr.y; } else { err = mSlots[buf].mGraphicBuffer->lockAsync( GraphicBuffer::USAGE_SW_READ_OFTEN, b.mCrop, &bufferPointer, b.mFence->dup()); if (err != OK) { CC_LOGE("Unable to lock buffer for CPU reading: %s (%d)", strerror(-err), err); return err; } } } else { if (mSlots[buf].mGraphicBuffer->getPixelFormat() == HAL_PIXEL_FORMAT_YCbCr_420_888) { err = mSlots[buf].mGraphicBuffer->lockYCbCr( GraphicBuffer::USAGE_SW_READ_OFTEN, b.mCrop, &ycbcr); if (err != OK) { CC_LOGE("Unable to lock YCbCr buffer for CPU reading: %s (%d)", strerror(-err), err); return err; } bufferPointer = ycbcr.y; } else { err = mSlots[buf].mGraphicBuffer->lock( GraphicBuffer::USAGE_SW_READ_OFTEN, b.mCrop, &bufferPointer); if (err != OK) { CC_LOGE("Unable to lock buffer for CPU reading: %s (%d)", strerror(-err), err); return err; } } } size_t lockedIdx = 0; for (; lockedIdx < static_cast(mMaxLockedBuffers); lockedIdx++) { if (mAcquiredBuffers[lockedIdx].mSlot == BufferQueue::INVALID_BUFFER_SLOT) { break; } } assert(lockedIdx < mMaxLockedBuffers); AcquiredBuffer &ab = mAcquiredBuffers.editItemAt(lockedIdx); ab.mSlot = buf; ab.mBufferPointer = bufferPointer; ab.mGraphicBuffer = mSlots[buf].mGraphicBuffer; nativeBuffer->data = reinterpret_cast(bufferPointer); nativeBuffer->width = mSlots[buf].mGraphicBuffer->getWidth(); nativeBuffer->height = mSlots[buf].mGraphicBuffer->getHeight(); nativeBuffer->format = mSlots[buf].mGraphicBuffer->getPixelFormat(); nativeBuffer->stride = (ycbcr.y != NULL) ? static_cast(ycbcr.ystride) : mSlots[buf].mGraphicBuffer->getStride(); nativeBuffer->crop = b.mCrop; nativeBuffer->transform = b.mTransform; nativeBuffer->scalingMode = b.mScalingMode; nativeBuffer->timestamp = b.mTimestamp; nativeBuffer->frameNumber = b.mFrameNumber; nativeBuffer->dataCb = reinterpret_cast(ycbcr.cb); nativeBuffer->dataCr = reinterpret_cast(ycbcr.cr); nativeBuffer->chromaStride = static_cast(ycbcr.cstride); nativeBuffer->chromaStep = static_cast(ycbcr.chroma_step); mCurrentLockedBuffers++; return OK; } status_t CpuConsumer::unlockBuffer(const LockedBuffer &nativeBuffer) { Mutex::Autolock _l(mMutex); size_t lockedIdx = 0; void *bufPtr = reinterpret_cast(nativeBuffer.data); for (; lockedIdx < static_cast(mMaxLockedBuffers); lockedIdx++) { if (bufPtr == mAcquiredBuffers[lockedIdx].mBufferPointer) break; } if (lockedIdx == mMaxLockedBuffers) { CC_LOGE("%s: Can't find buffer to free", __FUNCTION__); return BAD_VALUE; } return releaseAcquiredBufferLocked(lockedIdx); } status_t CpuConsumer::releaseAcquiredBufferLocked(size_t lockedIdx) { status_t err; int fd = -1; err = mAcquiredBuffers[lockedIdx].mGraphicBuffer->unlockAsync(&fd); if (err != OK) { CC_LOGE("%s: Unable to unlock graphic buffer %zd", __FUNCTION__, lockedIdx); return err; } int buf = mAcquiredBuffers[lockedIdx].mSlot; if (CC_LIKELY(fd != -1)) { sp fence(new Fence(fd)); addReleaseFenceLocked( mAcquiredBuffers[lockedIdx].mSlot, mSlots[buf].mGraphicBuffer, fence); } // release the buffer if it hasn't already been freed by the BufferQueue. // This can happen, for example, when the producer of this buffer // disconnected after this buffer was acquired. if (CC_LIKELY(mAcquiredBuffers[lockedIdx].mGraphicBuffer == mSlots[buf].mGraphicBuffer)) { releaseBufferLocked( buf, mAcquiredBuffers[lockedIdx].mGraphicBuffer, EGL_NO_DISPLAY, EGL_NO_SYNC_KHR); } AcquiredBuffer &ab = mAcquiredBuffers.editItemAt(lockedIdx); ab.mSlot = BufferQueue::INVALID_BUFFER_SLOT; ab.mBufferPointer = NULL; ab.mGraphicBuffer.clear(); mCurrentLockedBuffers--; return OK; } void CpuConsumer::freeBufferLocked(int slotIndex) { ConsumerBase::freeBufferLocked(slotIndex); } } // namespace android