BufferItemConsumer.cpp revision 8f938a53385a3c6d1c6aa24b3f38437bb2cc47ae 
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
30namespace android {
31
32BufferItemConsumer::BufferItemConsumer(const sp<BufferQueue>& bq,
33        uint32_t consumerUsage, int bufferCount, bool synchronousMode) :
34    ConsumerBase(bq)
35{
36    mBufferQueue->setConsumerUsageBits(consumerUsage);
37    mBufferQueue->setSynchronousMode(synchronousMode);
38    mBufferQueue->setMaxAcquiredBufferCount(bufferCount);
39}
40
41BufferItemConsumer::~BufferItemConsumer() {
42}
43
44void BufferItemConsumer::setName(const String8& name) {
45    Mutex::Autolock _l(mMutex);
46    mName = name;
47    mBufferQueue->setConsumerName(name);
48}
49
50status_t BufferItemConsumer::acquireBuffer(BufferItem *item,
51        nsecs_t presentWhen, bool waitForFence) {
52    status_t err;
53
54    if (!item) return BAD_VALUE;
55
56    Mutex::Autolock _l(mMutex);
57
58    err = acquireBufferLocked(item, presentWhen);
59    if (err != OK) {
60        if (err != NO_BUFFER_AVAILABLE) {
61            BI_LOGE("Error acquiring buffer: %s (%d)", strerror(err), err);
62        }
63        return err;
64    }
65
66    if (waitForFence) {
67        err = item->mFence->waitForever("BufferItemConsumer::acquireBuffer");
68        if (err != OK) {
69            BI_LOGE("Failed to wait for fence of acquired buffer: %s (%d)",
70                    strerror(-err), err);
71            return err;
72        }
73    }
74
75    item->mGraphicBuffer = mSlots[item->mBuf].mGraphicBuffer;
76
77    return OK;
78}
79
80status_t BufferItemConsumer::releaseBuffer(const BufferItem &item,
81        const sp<Fence>& releaseFence) {
82    status_t err;
83
84    Mutex::Autolock _l(mMutex);
85
86    err = addReleaseFenceLocked(item.mBuf, item.mGraphicBuffer, releaseFence);
87
88    err = releaseBufferLocked(item.mBuf, item.mGraphicBuffer, EGL_NO_DISPLAY,
89            EGL_NO_SYNC_KHR);
90    if (err != OK) {
91        BI_LOGE("Failed to release buffer: %s (%d)",
92                strerror(-err), err);
93    }
94    return err;
95}
96
97status_t BufferItemConsumer::setDefaultBufferSize(uint32_t w, uint32_t h) {
98    Mutex::Autolock _l(mMutex);
99    return mBufferQueue->setDefaultBufferSize(w, h);
100}
101
102status_t BufferItemConsumer::setDefaultBufferFormat(uint32_t defaultFormat) {
103    Mutex::Autolock _l(mMutex);
104    return mBufferQueue->setDefaultBufferFormat(defaultFormat);
105}
106
107} // namespace android
108