| /* |
| * 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 <cutils/compiler.h> |
| #include <utils/Log.h> |
| #include <gui/CpuConsumer.h> |
| |
| #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<IGraphicBufferConsumer>& bq, |
| uint32_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(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(uint32_t 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) { |
| return INVALID_OPERATION; |
| } |
| |
| 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; |
| |
| if (b.mFence.get()) { |
| err = b.mFence->waitForever("CpuConsumer::lockNextBuffer"); |
| if (err != OK) { |
| CC_LOGE("Failed to wait for fence of acquired buffer: %s (%d)", |
| strerror(-err), err); |
| return err; |
| } |
| } |
| |
| void *bufferPointer = NULL; |
| android_ycbcr ycbcr = android_ycbcr(); |
| |
| 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 < 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<uint8_t*>(bufferPointer); |
| nativeBuffer->width = mSlots[buf].mGraphicBuffer->getWidth(); |
| nativeBuffer->height = mSlots[buf].mGraphicBuffer->getHeight(); |
| nativeBuffer->format = mSlots[buf].mGraphicBuffer->getPixelFormat(); |
| nativeBuffer->stride = (ycbcr.y != NULL) ? |
| 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<uint8_t*>(ycbcr.cb); |
| nativeBuffer->dataCr = reinterpret_cast<uint8_t*>(ycbcr.cr); |
| nativeBuffer->chromaStride = ycbcr.cstride; |
| nativeBuffer->chromaStep = ycbcr.chroma_step; |
| |
| mCurrentLockedBuffers++; |
| |
| return OK; |
| } |
| |
| status_t CpuConsumer::unlockBuffer(const LockedBuffer &nativeBuffer) { |
| Mutex::Autolock _l(mMutex); |
| size_t lockedIdx = 0; |
| status_t err; |
| |
| void *bufPtr = reinterpret_cast<void *>(nativeBuffer.data); |
| for (; lockedIdx < 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(int lockedIdx) { |
| status_t err; |
| |
| err = mAcquiredBuffers[lockedIdx].mGraphicBuffer->unlock(); |
| if (err != OK) { |
| CC_LOGE("%s: Unable to unlock graphic buffer %d", __FUNCTION__, |
| lockedIdx); |
| return err; |
| } |
| int buf = mAcquiredBuffers[lockedIdx].mSlot; |
| |
| // 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 |