BufferItemConsumer.cpp revision 5b75a513e431c097ae704cba2f7affa6bfaecec9 
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(
33        const sp<IGraphicBufferConsumer>& consumer, uint32_t consumerUsage,
34        int bufferCount, bool controlledByApp) :
35    ConsumerBase(consumer, controlledByApp)
36{
37    status_t err = mConsumer->setConsumerUsageBits(consumerUsage);
38    LOG_ALWAYS_FATAL_IF(err != OK,
39            "Failed to set consumer usage bits to %#x", consumerUsage);
40    if (bufferCount != DEFAULT_MAX_BUFFERS) {
41        err = mConsumer->setMaxAcquiredBufferCount(bufferCount);
42        LOG_ALWAYS_FATAL_IF(err != OK,
43                "Failed to set max acquired buffer count to %d", bufferCount);
44    }
45}
46
47BufferItemConsumer::~BufferItemConsumer() {}
48
49void BufferItemConsumer::setName(const String8& name) {
50    Mutex::Autolock _l(mMutex);
51    mName = name;
52    mConsumer->setConsumerName(name);
53}
54
55status_t BufferItemConsumer::acquireBuffer(BufferItem *item,
56        nsecs_t presentWhen, bool waitForFence) {
57    status_t err;
58
59    if (!item) return BAD_VALUE;
60
61    Mutex::Autolock _l(mMutex);
62
63    err = acquireBufferLocked(item, presentWhen);
64    if (err != OK) {
65        if (err != NO_BUFFER_AVAILABLE) {
66            BI_LOGE("Error acquiring buffer: %s (%d)", strerror(err), err);
67        }
68        return err;
69    }
70
71    if (waitForFence) {
72        err = item->mFence->waitForever("BufferItemConsumer::acquireBuffer");
73        if (err != OK) {
74            BI_LOGE("Failed to wait for fence of acquired buffer: %s (%d)",
75                    strerror(-err), err);
76            return err;
77        }
78    }
79
80    item->mGraphicBuffer = mSlots[item->mBuf].mGraphicBuffer;
81
82    return OK;
83}
84
85status_t BufferItemConsumer::releaseBuffer(const BufferItem &item,
86        const sp<Fence>& releaseFence) {
87    status_t err;
88
89    Mutex::Autolock _l(mMutex);
90
91    err = addReleaseFenceLocked(item.mBuf, item.mGraphicBuffer, releaseFence);
92
93    err = releaseBufferLocked(item.mBuf, item.mGraphicBuffer, EGL_NO_DISPLAY,
94            EGL_NO_SYNC_KHR);
95    if (err != OK) {
96        BI_LOGE("Failed to release buffer: %s (%d)",
97                strerror(-err), err);
98    }
99    return err;
100}
101
102status_t BufferItemConsumer::setDefaultBufferSize(uint32_t w, uint32_t h) {
103    Mutex::Autolock _l(mMutex);
104    return mConsumer->setDefaultBufferSize(w, h);
105}
106
107status_t BufferItemConsumer::setDefaultBufferFormat(PixelFormat defaultFormat) {
108    Mutex::Autolock _l(mMutex);
109    return mConsumer->setDefaultBufferFormat(defaultFormat);
110}
111
112status_t BufferItemConsumer::setDefaultBufferDataSpace(
113        android_dataspace defaultDataSpace) {
114    Mutex::Autolock _l(mMutex);
115    return mConsumer->setDefaultBufferDataSpace(defaultDataSpace);
116}
117
118} // namespace android
119