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 "BufferItemConsumer"
19 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
20 #include <utils/Log.h>
21
22 #include <gui/BufferItemConsumer.h>
23
24 #define BI_LOGV(x, ...) ALOGV("[%s] "x, mName.string(), ##__VA_ARGS__)
25 #define BI_LOGD(x, ...) ALOGD("[%s] "x, mName.string(), ##__VA_ARGS__)
26 #define BI_LOGI(x, ...) ALOGI("[%s] "x, mName.string(), ##__VA_ARGS__)
27 #define BI_LOGW(x, ...) ALOGW("[%s] "x, mName.string(), ##__VA_ARGS__)
28 #define BI_LOGE(x, ...) ALOGE("[%s] "x, mName.string(), ##__VA_ARGS__)
29
30 namespace android {
31
BufferItemConsumer(uint32_t consumerUsage,int bufferCount,bool synchronousMode)32 BufferItemConsumer::BufferItemConsumer(uint32_t consumerUsage,
33 int bufferCount, bool synchronousMode) :
34 ConsumerBase(new BufferQueue(true) )
35 {
36 mBufferQueue->setConsumerUsageBits(consumerUsage);
37 mBufferQueue->setSynchronousMode(synchronousMode);
38 mBufferQueue->setMaxAcquiredBufferCount(bufferCount);
39 }
40
~BufferItemConsumer()41 BufferItemConsumer::~BufferItemConsumer() {
42 }
43
setName(const String8 & name)44 void BufferItemConsumer::setName(const String8& name) {
45 Mutex::Autolock _l(mMutex);
46 mName = name;
47 mBufferQueue->setConsumerName(name);
48 }
49
acquireBuffer(BufferItem * item,bool waitForFence)50 status_t BufferItemConsumer::acquireBuffer(BufferItem *item, bool waitForFence) {
51 status_t err;
52
53 if (!item) return BAD_VALUE;
54
55 Mutex::Autolock _l(mMutex);
56
57 err = acquireBufferLocked(item);
58 if (err != OK) {
59 if (err != NO_BUFFER_AVAILABLE) {
60 BI_LOGE("Error acquiring buffer: %s (%d)", strerror(err), err);
61 }
62 return err;
63 }
64
65 if (waitForFence && item->mFence.get()) {
66 err = item->mFence->waitForever(1000, "BufferItemConsumer::acquireBuffer");
67 if (err != OK) {
68 BI_LOGE("Failed to wait for fence of acquired buffer: %s (%d)",
69 strerror(-err), err);
70 return err;
71 }
72 }
73
74 item->mGraphicBuffer = mSlots[item->mBuf].mGraphicBuffer;
75
76 return OK;
77 }
78
releaseBuffer(const BufferItem & item,const sp<Fence> & releaseFence)79 status_t BufferItemConsumer::releaseBuffer(const BufferItem &item,
80 const sp<Fence>& releaseFence) {
81 status_t err;
82
83 Mutex::Autolock _l(mMutex);
84
85 err = addReleaseFenceLocked(item.mBuf, releaseFence);
86
87 err = releaseBufferLocked(item.mBuf, EGL_NO_DISPLAY,
88 EGL_NO_SYNC_KHR);
89 if (err != OK) {
90 BI_LOGE("Failed to release buffer: %s (%d)",
91 strerror(-err), err);
92 }
93 return err;
94 }
95
96 } // namespace android
97