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/BufferItem.h>
23 #include <gui/BufferItemConsumer.h>
24
25 #define BI_LOGV(x, ...) ALOGV("[%s] " x, mName.string(), ##__VA_ARGS__)
26 //#define BI_LOGD(x, ...) ALOGD("[%s] " x, mName.string(), ##__VA_ARGS__)
27 //#define BI_LOGI(x, ...) ALOGI("[%s] " x, mName.string(), ##__VA_ARGS__)
28 //#define BI_LOGW(x, ...) ALOGW("[%s] " x, mName.string(), ##__VA_ARGS__)
29 #define BI_LOGE(x, ...) ALOGE("[%s] " x, mName.string(), ##__VA_ARGS__)
30
31 namespace android {
32
BufferItemConsumer(const sp<IGraphicBufferConsumer> & consumer,uint32_t consumerUsage,int bufferCount,bool controlledByApp)33 BufferItemConsumer::BufferItemConsumer(
34 const sp<IGraphicBufferConsumer>& consumer, uint32_t consumerUsage,
35 int bufferCount, bool controlledByApp) :
36 ConsumerBase(consumer, controlledByApp)
37 {
38 status_t err = mConsumer->setConsumerUsageBits(consumerUsage);
39 LOG_ALWAYS_FATAL_IF(err != OK,
40 "Failed to set consumer usage bits to %#x", consumerUsage);
41 if (bufferCount != DEFAULT_MAX_BUFFERS) {
42 err = mConsumer->setMaxAcquiredBufferCount(bufferCount);
43 LOG_ALWAYS_FATAL_IF(err != OK,
44 "Failed to set max acquired buffer count to %d", bufferCount);
45 }
46 }
47
~BufferItemConsumer()48 BufferItemConsumer::~BufferItemConsumer() {}
49
setName(const String8 & name)50 void BufferItemConsumer::setName(const String8& name) {
51 Mutex::Autolock _l(mMutex);
52 if (mAbandoned) {
53 BI_LOGE("setName: BufferItemConsumer is abandoned!");
54 return;
55 }
56 mName = name;
57 mConsumer->setConsumerName(name);
58 }
59
setBufferFreedListener(const wp<BufferFreedListener> & listener)60 void BufferItemConsumer::setBufferFreedListener(
61 const wp<BufferFreedListener>& listener) {
62 Mutex::Autolock _l(mMutex);
63 mBufferFreedListener = listener;
64 }
65
acquireBuffer(BufferItem * item,nsecs_t presentWhen,bool waitForFence)66 status_t BufferItemConsumer::acquireBuffer(BufferItem *item,
67 nsecs_t presentWhen, bool waitForFence) {
68 status_t err;
69
70 if (!item) return BAD_VALUE;
71
72 Mutex::Autolock _l(mMutex);
73
74 err = acquireBufferLocked(item, presentWhen);
75 if (err != OK) {
76 if (err != NO_BUFFER_AVAILABLE) {
77 BI_LOGE("Error acquiring buffer: %s (%d)", strerror(err), err);
78 }
79 return err;
80 }
81
82 if (waitForFence) {
83 err = item->mFence->waitForever("BufferItemConsumer::acquireBuffer");
84 if (err != OK) {
85 BI_LOGE("Failed to wait for fence of acquired buffer: %s (%d)",
86 strerror(-err), err);
87 return err;
88 }
89 }
90
91 item->mGraphicBuffer = mSlots[item->mSlot].mGraphicBuffer;
92
93 return OK;
94 }
95
releaseBuffer(const BufferItem & item,const sp<Fence> & releaseFence)96 status_t BufferItemConsumer::releaseBuffer(const BufferItem &item,
97 const sp<Fence>& releaseFence) {
98 status_t err;
99
100 Mutex::Autolock _l(mMutex);
101
102 err = addReleaseFenceLocked(item.mSlot, item.mGraphicBuffer, releaseFence);
103
104 err = releaseBufferLocked(item.mSlot, item.mGraphicBuffer, EGL_NO_DISPLAY,
105 EGL_NO_SYNC_KHR);
106 if (err != OK) {
107 BI_LOGE("Failed to release buffer: %s (%d)",
108 strerror(-err), err);
109 }
110 return err;
111 }
112
freeBufferLocked(int slotIndex)113 void BufferItemConsumer::freeBufferLocked(int slotIndex) {
114 sp<BufferFreedListener> listener = mBufferFreedListener.promote();
115 if (listener != NULL && mSlots[slotIndex].mGraphicBuffer != NULL) {
116 // Fire callback if we have a listener registered and the buffer being freed is valid.
117 BI_LOGV("actually calling onBufferFreed");
118 listener->onBufferFreed(mSlots[slotIndex].mGraphicBuffer);
119 }
120 ConsumerBase::freeBufferLocked(slotIndex);
121 }
122
123 } // namespace android
124