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 <com_android_graphics_libgui_flags.h>
25 #include <gui/BufferItem.h>
26 #include <gui/BufferItemConsumer.h>
27 #include <ui/BufferQueueDefs.h>
28 #include <ui/GraphicBuffer.h>
29
30 #define BI_LOGV(x, ...) ALOGV("[%s] " x, mName.c_str(), ##__VA_ARGS__)
31 // #define BI_LOGD(x, ...) ALOGD("[%s] " x, mName.c_str(), ##__VA_ARGS__)
32 // #define BI_LOGI(x, ...) ALOGI("[%s] " x, mName.c_str(), ##__VA_ARGS__)
33 // #define BI_LOGW(x, ...) ALOGW("[%s] " x, mName.c_str(), ##__VA_ARGS__)
34 #define BI_LOGE(x, ...) ALOGE("[%s] " x, mName.c_str(), ##__VA_ARGS__)
35
36 namespace android {
37
38 #if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
BufferItemConsumer(uint64_t consumerUsage,int bufferCount,bool controlledByApp,bool isConsumerSurfaceFlinger)39 BufferItemConsumer::BufferItemConsumer(uint64_t consumerUsage, int bufferCount,
40 bool controlledByApp, bool isConsumerSurfaceFlinger)
41 : ConsumerBase(controlledByApp, isConsumerSurfaceFlinger) {
42 initialize(consumerUsage, bufferCount);
43 }
44
BufferItemConsumer(const sp<IGraphicBufferProducer> & producer,const sp<IGraphicBufferConsumer> & consumer,uint64_t consumerUsage,int bufferCount,bool controlledByApp)45 BufferItemConsumer::BufferItemConsumer(const sp<IGraphicBufferProducer>& producer,
46 const sp<IGraphicBufferConsumer>& consumer,
47 uint64_t consumerUsage, int bufferCount,
48 bool controlledByApp)
49 : ConsumerBase(producer, consumer, controlledByApp) {
50 initialize(consumerUsage, bufferCount);
51 }
52 #endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_CONSUMER_BASE_OWNS_BQ)
53
BufferItemConsumer(const sp<IGraphicBufferConsumer> & consumer,uint64_t consumerUsage,int bufferCount,bool controlledByApp)54 BufferItemConsumer::BufferItemConsumer(
55 const sp<IGraphicBufferConsumer>& consumer, uint64_t consumerUsage,
56 int bufferCount, bool controlledByApp) :
57 ConsumerBase(consumer, controlledByApp)
58 {
59 initialize(consumerUsage, bufferCount);
60 }
61
initialize(uint64_t consumerUsage,int bufferCount)62 void BufferItemConsumer::initialize(uint64_t consumerUsage, int bufferCount) {
63 status_t err = mConsumer->setConsumerUsageBits(consumerUsage);
64 LOG_ALWAYS_FATAL_IF(err != OK, "Failed to set consumer usage bits to %#" PRIx64, consumerUsage);
65 if (bufferCount != DEFAULT_MAX_BUFFERS) {
66 err = mConsumer->setMaxAcquiredBufferCount(bufferCount);
67 LOG_ALWAYS_FATAL_IF(err != OK, "Failed to set max acquired buffer count to %d",
68 bufferCount);
69 }
70 }
71
~BufferItemConsumer()72 BufferItemConsumer::~BufferItemConsumer() {}
73
setBufferFreedListener(const wp<BufferFreedListener> & listener)74 void BufferItemConsumer::setBufferFreedListener(
75 const wp<BufferFreedListener>& listener) {
76 Mutex::Autolock _l(mMutex);
77 mBufferFreedListener = listener;
78 }
79
acquireBuffer(BufferItem * item,nsecs_t presentWhen,bool waitForFence)80 status_t BufferItemConsumer::acquireBuffer(BufferItem *item,
81 nsecs_t presentWhen, bool waitForFence) {
82 status_t err;
83
84 if (!item) return BAD_VALUE;
85
86 Mutex::Autolock _l(mMutex);
87
88 err = acquireBufferLocked(item, presentWhen);
89 if (err != OK) {
90 if (err != NO_BUFFER_AVAILABLE) {
91 BI_LOGE("Error acquiring buffer: %s (%d)", strerror(err), err);
92 }
93 return err;
94 }
95
96 if (waitForFence) {
97 err = item->mFence->waitForever("BufferItemConsumer::acquireBuffer");
98 if (err != OK) {
99 BI_LOGE("Failed to wait for fence of acquired buffer: %s (%d)",
100 strerror(-err), err);
101 return err;
102 }
103 }
104
105 item->mGraphicBuffer = mSlots[item->mSlot].mGraphicBuffer;
106
107 return OK;
108 }
109
releaseBuffer(const BufferItem & item,const sp<Fence> & releaseFence)110 status_t BufferItemConsumer::releaseBuffer(const BufferItem &item,
111 const sp<Fence>& releaseFence) {
112 Mutex::Autolock _l(mMutex);
113 return releaseBufferSlotLocked(item.mSlot, item.mGraphicBuffer, releaseFence);
114 }
115
116 #if COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
releaseBuffer(const sp<GraphicBuffer> & buffer,const sp<Fence> & releaseFence)117 status_t BufferItemConsumer::releaseBuffer(const sp<GraphicBuffer>& buffer,
118 const sp<Fence>& releaseFence) {
119 Mutex::Autolock _l(mMutex);
120
121 if (buffer == nullptr) {
122 return BAD_VALUE;
123 }
124
125 int slotIndex = getSlotForBufferLocked(buffer);
126 if (slotIndex == INVALID_BUFFER_SLOT) {
127 return BAD_VALUE;
128 }
129
130 return releaseBufferSlotLocked(slotIndex, buffer, releaseFence);
131 }
132 #endif // COM_ANDROID_GRAPHICS_LIBGUI_FLAGS(WB_PLATFORM_API_IMPROVEMENTS)
133
releaseBufferSlotLocked(int slotIndex,const sp<GraphicBuffer> & buffer,const sp<Fence> & releaseFence)134 status_t BufferItemConsumer::releaseBufferSlotLocked(int slotIndex, const sp<GraphicBuffer>& buffer,
135 const sp<Fence>& releaseFence) {
136 status_t err;
137
138 err = addReleaseFenceLocked(slotIndex, buffer, releaseFence);
139 if (err != OK) {
140 BI_LOGE("Failed to addReleaseFenceLocked");
141 }
142
143 err = releaseBufferLocked(slotIndex, buffer);
144 if (err != OK && err != IGraphicBufferConsumer::STALE_BUFFER_SLOT) {
145 BI_LOGE("Failed to release buffer: %s (%d)",
146 strerror(-err), err);
147 }
148 return err;
149 }
150
freeBufferLocked(int slotIndex)151 void BufferItemConsumer::freeBufferLocked(int slotIndex) {
152 sp<BufferFreedListener> listener = mBufferFreedListener.promote();
153 if (listener != nullptr && mSlots[slotIndex].mGraphicBuffer != nullptr) {
154 // Fire callback if we have a listener registered and the buffer being freed is valid.
155 BI_LOGV("actually calling onBufferFreed");
156 listener->onBufferFreed(mSlots[slotIndex].mGraphicBuffer);
157 }
158 ConsumerBase::freeBufferLocked(slotIndex);
159 }
160
161 } // namespace android
162