| /* |
| * 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/BufferItem.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, |
| 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<int32_t>(maxLockedBuffers)); |
| } |
| |
| CpuConsumer::~CpuConsumer() { |
| // ConsumerBase destructor does all the work. |
| } |
| |
| |
| |
| void CpuConsumer::setName(const String8& name) { |
| Mutex::Autolock _l(mMutex); |
| if (mAbandoned) { |
| CC_LOGE("setName: CpuConsumer is abandoned!"); |
| return; |
| } |
| mName = name; |
| mConsumer->setConsumerName(name); |
| } |
| |
| static bool isPossiblyYUV(PixelFormat format) { |
| switch (static_cast<int>(format)) { |
| case HAL_PIXEL_FORMAT_RGBA_8888: |
| case HAL_PIXEL_FORMAT_RGBX_8888: |
| case HAL_PIXEL_FORMAT_RGBA_FP16: |
| case HAL_PIXEL_FORMAT_RGBX_FP16: |
| case HAL_PIXEL_FORMAT_RGB_888: |
| case HAL_PIXEL_FORMAT_RGB_565: |
| case HAL_PIXEL_FORMAT_BGRA_8888: |
| case HAL_PIXEL_FORMAT_Y8: |
| case HAL_PIXEL_FORMAT_Y16: |
| case HAL_PIXEL_FORMAT_RAW16: |
| case HAL_PIXEL_FORMAT_RAW10: |
| case HAL_PIXEL_FORMAT_RAW_OPAQUE: |
| case HAL_PIXEL_FORMAT_BLOB: |
| case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED: |
| return false; |
| |
| case HAL_PIXEL_FORMAT_YV12: |
| case HAL_PIXEL_FORMAT_YCbCr_420_888: |
| case HAL_PIXEL_FORMAT_YCbCr_422_SP: |
| case HAL_PIXEL_FORMAT_YCrCb_420_SP: |
| case HAL_PIXEL_FORMAT_YCbCr_422_I: |
| default: |
| return true; |
| } |
| } |
| |
| 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; |
| } |
| |
| 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 slot = b.mSlot; |
| |
| void *bufferPointer = NULL; |
| android_ycbcr ycbcr = android_ycbcr(); |
| |
| PixelFormat format = mSlots[slot].mGraphicBuffer->getPixelFormat(); |
| PixelFormat flexFormat = format; |
| if (isPossiblyYUV(format)) { |
| if (b.mFence.get()) { |
| err = mSlots[slot].mGraphicBuffer->lockAsyncYCbCr( |
| GraphicBuffer::USAGE_SW_READ_OFTEN, |
| b.mCrop, |
| &ycbcr, |
| b.mFence->dup()); |
| } else { |
| err = mSlots[slot].mGraphicBuffer->lockYCbCr( |
| GraphicBuffer::USAGE_SW_READ_OFTEN, |
| b.mCrop, |
| &ycbcr); |
| } |
| if (err == OK) { |
| bufferPointer = ycbcr.y; |
| flexFormat = HAL_PIXEL_FORMAT_YCbCr_420_888; |
| if (format != HAL_PIXEL_FORMAT_YCbCr_420_888) { |
| CC_LOGV("locking buffer of format %#x as flex YUV", format); |
| } |
| } else if (format == HAL_PIXEL_FORMAT_YCbCr_420_888) { |
| CC_LOGE("Unable to lock YCbCr buffer for CPU reading: %s (%d)", |
| strerror(-err), err); |
| return err; |
| } |
| } |
| |
| if (bufferPointer == NULL) { // not flexible YUV |
| if (b.mFence.get()) { |
| err = mSlots[slot].mGraphicBuffer->lockAsync( |
| GraphicBuffer::USAGE_SW_READ_OFTEN, |
| b.mCrop, |
| &bufferPointer, |
| b.mFence->dup()); |
| } else { |
| err = mSlots[slot].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<size_t>(mMaxLockedBuffers); lockedIdx++) { |
| if (mAcquiredBuffers[lockedIdx].mSlot == |
| BufferQueue::INVALID_BUFFER_SLOT) { |
| break; |
| } |
| } |
| assert(lockedIdx < mMaxLockedBuffers); |
| |
| AcquiredBuffer &ab = mAcquiredBuffers.editItemAt(lockedIdx); |
| ab.mSlot = slot; |
| ab.mBufferPointer = bufferPointer; |
| ab.mGraphicBuffer = mSlots[slot].mGraphicBuffer; |
| |
| nativeBuffer->data = |
| reinterpret_cast<uint8_t*>(bufferPointer); |
| nativeBuffer->width = mSlots[slot].mGraphicBuffer->getWidth(); |
| nativeBuffer->height = mSlots[slot].mGraphicBuffer->getHeight(); |
| nativeBuffer->format = format; |
| nativeBuffer->flexFormat = flexFormat; |
| nativeBuffer->stride = (ycbcr.y != NULL) ? |
| static_cast<uint32_t>(ycbcr.ystride) : |
| mSlots[slot].mGraphicBuffer->getStride(); |
| |
| nativeBuffer->crop = b.mCrop; |
| nativeBuffer->transform = b.mTransform; |
| nativeBuffer->scalingMode = b.mScalingMode; |
| nativeBuffer->timestamp = b.mTimestamp; |
| nativeBuffer->dataSpace = b.mDataSpace; |
| nativeBuffer->frameNumber = b.mFrameNumber; |
| |
| nativeBuffer->dataCb = reinterpret_cast<uint8_t*>(ycbcr.cb); |
| nativeBuffer->dataCr = reinterpret_cast<uint8_t*>(ycbcr.cr); |
| nativeBuffer->chromaStride = static_cast<uint32_t>(ycbcr.cstride); |
| nativeBuffer->chromaStep = static_cast<uint32_t>(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<void *>(nativeBuffer.data); |
| for (; lockedIdx < static_cast<size_t>(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> 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 |