1/* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17//#define LOG_NDEBUG 0 18#define LOG_TAG "CpuConsumer" 19//#define ATRACE_TAG ATRACE_TAG_GRAPHICS 20 21#include <cutils/compiler.h> 22#include <utils/Log.h> 23#include <gui/BufferItem.h> 24#include <gui/CpuConsumer.h> 25 26#define CC_LOGV(x, ...) ALOGV("[%s] " x, mName.string(), ##__VA_ARGS__) 27//#define CC_LOGD(x, ...) ALOGD("[%s] " x, mName.string(), ##__VA_ARGS__) 28//#define CC_LOGI(x, ...) ALOGI("[%s] " x, mName.string(), ##__VA_ARGS__) 29#define CC_LOGW(x, ...) ALOGW("[%s] " x, mName.string(), ##__VA_ARGS__) 30#define CC_LOGE(x, ...) ALOGE("[%s] " x, mName.string(), ##__VA_ARGS__) 31 32namespace android { 33 34CpuConsumer::CpuConsumer(const sp<IGraphicBufferConsumer>& bq, 35 size_t maxLockedBuffers, bool controlledByApp) : 36 ConsumerBase(bq, controlledByApp), 37 mMaxLockedBuffers(maxLockedBuffers), 38 mCurrentLockedBuffers(0) 39{ 40 // Create tracking entries for locked buffers 41 mAcquiredBuffers.insertAt(0, maxLockedBuffers); 42 43 mConsumer->setConsumerUsageBits(GRALLOC_USAGE_SW_READ_OFTEN); 44 mConsumer->setMaxAcquiredBufferCount(static_cast<int32_t>(maxLockedBuffers)); 45} 46 47CpuConsumer::~CpuConsumer() { 48 // ConsumerBase destructor does all the work. 49} 50 51 52 53void CpuConsumer::setName(const String8& name) { 54 Mutex::Autolock _l(mMutex); 55 if (mAbandoned) { 56 CC_LOGE("setName: CpuConsumer is abandoned!"); 57 return; 58 } 59 mName = name; 60 mConsumer->setConsumerName(name); 61} 62 63static bool isPossiblyYUV(PixelFormat format) { 64 switch (static_cast<int>(format)) { 65 case HAL_PIXEL_FORMAT_RGBA_8888: 66 case HAL_PIXEL_FORMAT_RGBX_8888: 67 case HAL_PIXEL_FORMAT_RGB_888: 68 case HAL_PIXEL_FORMAT_RGB_565: 69 case HAL_PIXEL_FORMAT_BGRA_8888: 70 case HAL_PIXEL_FORMAT_Y8: 71 case HAL_PIXEL_FORMAT_Y16: 72 case HAL_PIXEL_FORMAT_RAW16: 73 case HAL_PIXEL_FORMAT_RAW10: 74 case HAL_PIXEL_FORMAT_RAW_OPAQUE: 75 case HAL_PIXEL_FORMAT_BLOB: 76 case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED: 77 return false; 78 79 case HAL_PIXEL_FORMAT_YV12: 80 case HAL_PIXEL_FORMAT_YCbCr_420_888: 81 case HAL_PIXEL_FORMAT_YCbCr_422_SP: 82 case HAL_PIXEL_FORMAT_YCrCb_420_SP: 83 case HAL_PIXEL_FORMAT_YCbCr_422_I: 84 default: 85 return true; 86 } 87} 88 89status_t CpuConsumer::lockNextBuffer(LockedBuffer *nativeBuffer) { 90 status_t err; 91 92 if (!nativeBuffer) return BAD_VALUE; 93 if (mCurrentLockedBuffers == mMaxLockedBuffers) { 94 CC_LOGW("Max buffers have been locked (%zd), cannot lock anymore.", 95 mMaxLockedBuffers); 96 return NOT_ENOUGH_DATA; 97 } 98 99 BufferItem b; 100 101 Mutex::Autolock _l(mMutex); 102 103 err = acquireBufferLocked(&b, 0); 104 if (err != OK) { 105 if (err == BufferQueue::NO_BUFFER_AVAILABLE) { 106 return BAD_VALUE; 107 } else { 108 CC_LOGE("Error acquiring buffer: %s (%d)", strerror(err), err); 109 return err; 110 } 111 } 112 113 int slot = b.mSlot; 114 115 void *bufferPointer = NULL; 116 android_ycbcr ycbcr = android_ycbcr(); 117 118 PixelFormat format = mSlots[slot].mGraphicBuffer->getPixelFormat(); 119 PixelFormat flexFormat = format; 120 if (isPossiblyYUV(format)) { 121 if (b.mFence.get()) { 122 err = mSlots[slot].mGraphicBuffer->lockAsyncYCbCr( 123 GraphicBuffer::USAGE_SW_READ_OFTEN, 124 b.mCrop, 125 &ycbcr, 126 b.mFence->dup()); 127 } else { 128 err = mSlots[slot].mGraphicBuffer->lockYCbCr( 129 GraphicBuffer::USAGE_SW_READ_OFTEN, 130 b.mCrop, 131 &ycbcr); 132 } 133 if (err == OK) { 134 bufferPointer = ycbcr.y; 135 flexFormat = HAL_PIXEL_FORMAT_YCbCr_420_888; 136 if (format != HAL_PIXEL_FORMAT_YCbCr_420_888) { 137 CC_LOGV("locking buffer of format %#x as flex YUV", format); 138 } 139 } else if (format == HAL_PIXEL_FORMAT_YCbCr_420_888) { 140 CC_LOGE("Unable to lock YCbCr buffer for CPU reading: %s (%d)", 141 strerror(-err), err); 142 return err; 143 } 144 } 145 146 if (bufferPointer == NULL) { // not flexible YUV 147 if (b.mFence.get()) { 148 err = mSlots[slot].mGraphicBuffer->lockAsync( 149 GraphicBuffer::USAGE_SW_READ_OFTEN, 150 b.mCrop, 151 &bufferPointer, 152 b.mFence->dup()); 153 } else { 154 err = mSlots[slot].mGraphicBuffer->lock( 155 GraphicBuffer::USAGE_SW_READ_OFTEN, 156 b.mCrop, 157 &bufferPointer); 158 } 159 if (err != OK) { 160 CC_LOGE("Unable to lock buffer for CPU reading: %s (%d)", 161 strerror(-err), err); 162 return err; 163 } 164 } 165 166 size_t lockedIdx = 0; 167 for (; lockedIdx < static_cast<size_t>(mMaxLockedBuffers); lockedIdx++) { 168 if (mAcquiredBuffers[lockedIdx].mSlot == 169 BufferQueue::INVALID_BUFFER_SLOT) { 170 break; 171 } 172 } 173 assert(lockedIdx < mMaxLockedBuffers); 174 175 AcquiredBuffer &ab = mAcquiredBuffers.editItemAt(lockedIdx); 176 ab.mSlot = slot; 177 ab.mBufferPointer = bufferPointer; 178 ab.mGraphicBuffer = mSlots[slot].mGraphicBuffer; 179 180 nativeBuffer->data = 181 reinterpret_cast<uint8_t*>(bufferPointer); 182 nativeBuffer->width = mSlots[slot].mGraphicBuffer->getWidth(); 183 nativeBuffer->height = mSlots[slot].mGraphicBuffer->getHeight(); 184 nativeBuffer->format = format; 185 nativeBuffer->flexFormat = flexFormat; 186 nativeBuffer->stride = (ycbcr.y != NULL) ? 187 static_cast<uint32_t>(ycbcr.ystride) : 188 mSlots[slot].mGraphicBuffer->getStride(); 189 190 nativeBuffer->crop = b.mCrop; 191 nativeBuffer->transform = b.mTransform; 192 nativeBuffer->scalingMode = b.mScalingMode; 193 nativeBuffer->timestamp = b.mTimestamp; 194 nativeBuffer->dataSpace = b.mDataSpace; 195 nativeBuffer->frameNumber = b.mFrameNumber; 196 197 nativeBuffer->dataCb = reinterpret_cast<uint8_t*>(ycbcr.cb); 198 nativeBuffer->dataCr = reinterpret_cast<uint8_t*>(ycbcr.cr); 199 nativeBuffer->chromaStride = static_cast<uint32_t>(ycbcr.cstride); 200 nativeBuffer->chromaStep = static_cast<uint32_t>(ycbcr.chroma_step); 201 202 mCurrentLockedBuffers++; 203 204 return OK; 205} 206 207status_t CpuConsumer::unlockBuffer(const LockedBuffer &nativeBuffer) { 208 Mutex::Autolock _l(mMutex); 209 size_t lockedIdx = 0; 210 211 void *bufPtr = reinterpret_cast<void *>(nativeBuffer.data); 212 for (; lockedIdx < static_cast<size_t>(mMaxLockedBuffers); lockedIdx++) { 213 if (bufPtr == mAcquiredBuffers[lockedIdx].mBufferPointer) break; 214 } 215 if (lockedIdx == mMaxLockedBuffers) { 216 CC_LOGE("%s: Can't find buffer to free", __FUNCTION__); 217 return BAD_VALUE; 218 } 219 220 return releaseAcquiredBufferLocked(lockedIdx); 221} 222 223status_t CpuConsumer::releaseAcquiredBufferLocked(size_t lockedIdx) { 224 status_t err; 225 int fd = -1; 226 227 err = mAcquiredBuffers[lockedIdx].mGraphicBuffer->unlockAsync(&fd); 228 if (err != OK) { 229 CC_LOGE("%s: Unable to unlock graphic buffer %zd", __FUNCTION__, 230 lockedIdx); 231 return err; 232 } 233 int buf = mAcquiredBuffers[lockedIdx].mSlot; 234 if (CC_LIKELY(fd != -1)) { 235 sp<Fence> fence(new Fence(fd)); 236 addReleaseFenceLocked( 237 mAcquiredBuffers[lockedIdx].mSlot, 238 mSlots[buf].mGraphicBuffer, 239 fence); 240 } 241 242 // release the buffer if it hasn't already been freed by the BufferQueue. 243 // This can happen, for example, when the producer of this buffer 244 // disconnected after this buffer was acquired. 245 if (CC_LIKELY(mAcquiredBuffers[lockedIdx].mGraphicBuffer == 246 mSlots[buf].mGraphicBuffer)) { 247 releaseBufferLocked( 248 buf, mAcquiredBuffers[lockedIdx].mGraphicBuffer, 249 EGL_NO_DISPLAY, EGL_NO_SYNC_KHR); 250 } 251 252 AcquiredBuffer &ab = mAcquiredBuffers.editItemAt(lockedIdx); 253 ab.mSlot = BufferQueue::INVALID_BUFFER_SLOT; 254 ab.mBufferPointer = NULL; 255 ab.mGraphicBuffer.clear(); 256 257 mCurrentLockedBuffers--; 258 return OK; 259} 260 261void CpuConsumer::freeBufferLocked(int slotIndex) { 262 ConsumerBase::freeBufferLocked(slotIndex); 263} 264 265} // namespace android 266