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 <inttypes.h>
23
24 #include <gui/BufferItem.h>
25 #include <gui/BufferItemConsumer.h>
26
27 #define BI_LOGV(x, ...) ALOGV("[%s] " x, mName.string(), ##__VA_ARGS__)
28 //#define BI_LOGD(x, ...) ALOGD("[%s] " x, mName.string(), ##__VA_ARGS__)
29 //#define BI_LOGI(x, ...) ALOGI("[%s] " x, mName.string(), ##__VA_ARGS__)
30 //#define BI_LOGW(x, ...) ALOGW("[%s] " x, mName.string(), ##__VA_ARGS__)
31 #define BI_LOGE(x, ...) ALOGE("[%s] " x, mName.string(), ##__VA_ARGS__)
32
33 namespace android {
34
BufferItemConsumer(const sp<IGraphicBufferConsumer> & consumer,uint64_t consumerUsage,int bufferCount,bool controlledByApp)35 BufferItemConsumer::BufferItemConsumer(
36 const sp<IGraphicBufferConsumer>& consumer, uint64_t consumerUsage,
37 int bufferCount, bool controlledByApp) :
38 ConsumerBase(consumer, controlledByApp)
39 {
40 status_t err = mConsumer->setConsumerUsageBits(consumerUsage);
41 LOG_ALWAYS_FATAL_IF(err != OK,
42 "Failed to set consumer usage bits to %#" PRIx64, consumerUsage);
43 if (bufferCount != DEFAULT_MAX_BUFFERS) {
44 err = mConsumer->setMaxAcquiredBufferCount(bufferCount);
45 LOG_ALWAYS_FATAL_IF(err != OK,
46 "Failed to set max acquired buffer count to %d", bufferCount);
47 }
48 }
49
~BufferItemConsumer()50 BufferItemConsumer::~BufferItemConsumer() {}
51
setName(const String8 & name)52 void BufferItemConsumer::setName(const String8& name) {
53 Mutex::Autolock _l(mMutex);
54 if (mAbandoned) {
55 BI_LOGE("setName: BufferItemConsumer is abandoned!");
56 return;
57 }
58 mName = name;
59 mConsumer->setConsumerName(name);
60 }
61
setBufferFreedListener(const wp<BufferFreedListener> & listener)62 void BufferItemConsumer::setBufferFreedListener(
63 const wp<BufferFreedListener>& listener) {
64 Mutex::Autolock _l(mMutex);
65 mBufferFreedListener = listener;
66 }
67
acquireBuffer(BufferItem * item,nsecs_t presentWhen,bool waitForFence)68 status_t BufferItemConsumer::acquireBuffer(BufferItem *item,
69 nsecs_t presentWhen, bool waitForFence) {
70 status_t err;
71
72 if (!item) return BAD_VALUE;
73
74 Mutex::Autolock _l(mMutex);
75
76 err = acquireBufferLocked(item, presentWhen);
77 if (err != OK) {
78 if (err != NO_BUFFER_AVAILABLE) {
79 BI_LOGE("Error acquiring buffer: %s (%d)", strerror(err), err);
80 }
81 return err;
82 }
83
84 if (waitForFence) {
85 err = item->mFence->waitForever("BufferItemConsumer::acquireBuffer");
86 if (err != OK) {
87 BI_LOGE("Failed to wait for fence of acquired buffer: %s (%d)",
88 strerror(-err), err);
89 return err;
90 }
91 }
92
93 item->mGraphicBuffer = mSlots[item->mSlot].mGraphicBuffer;
94
95 return OK;
96 }
97
releaseBuffer(const BufferItem & item,const sp<Fence> & releaseFence)98 status_t BufferItemConsumer::releaseBuffer(const BufferItem &item,
99 const sp<Fence>& releaseFence) {
100 status_t err;
101
102 Mutex::Autolock _l(mMutex);
103
104 err = addReleaseFenceLocked(item.mSlot, item.mGraphicBuffer, releaseFence);
105
106 err = releaseBufferLocked(item.mSlot, item.mGraphicBuffer, EGL_NO_DISPLAY,
107 EGL_NO_SYNC_KHR);
108 if (err != OK) {
109 BI_LOGE("Failed to release buffer: %s (%d)",
110 strerror(-err), err);
111 }
112 return err;
113 }
114
freeBufferLocked(int slotIndex)115 void BufferItemConsumer::freeBufferLocked(int slotIndex) {
116 sp<BufferFreedListener> listener = mBufferFreedListener.promote();
117 if (listener != NULL && mSlots[slotIndex].mGraphicBuffer != NULL) {
118 // Fire callback if we have a listener registered and the buffer being freed is valid.
119 BI_LOGV("actually calling onBufferFreed");
120 listener->onBufferFreed(mSlots[slotIndex].mGraphicBuffer);
121 }
122 ConsumerBase::freeBufferLocked(slotIndex);
123 }
124
125 } // namespace android
126