1 /*
2 * Copyright (C) 2013-2018 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_TAG "Camera3-IOStreamBase"
18 #define ATRACE_TAG ATRACE_TAG_CAMERA
19 //#define LOG_NDEBUG 0
20
21 #include <inttypes.h>
22
23 #include <utils/Log.h>
24 #include <utils/Trace.h>
25 #include "device3/Camera3IOStreamBase.h"
26 #include "device3/StatusTracker.h"
27
28 namespace android {
29
30 namespace camera3 {
31
Camera3IOStreamBase(int id,camera_stream_type_t type,uint32_t width,uint32_t height,size_t maxSize,int format,android_dataspace dataSpace,camera_stream_rotation_t rotation,const String8 & physicalCameraId,const std::unordered_set<int32_t> & sensorPixelModesUsed,int setId,bool isMultiResolution,int64_t dynamicRangeProfile,int64_t streamUseCase,bool deviceTimeBaseIsRealtime,int timestampBase,int32_t colorSpace)32 Camera3IOStreamBase::Camera3IOStreamBase(int id, camera_stream_type_t type,
33 uint32_t width, uint32_t height, size_t maxSize, int format,
34 android_dataspace dataSpace, camera_stream_rotation_t rotation,
35 const String8& physicalCameraId,
36 const std::unordered_set<int32_t> &sensorPixelModesUsed,
37 int setId, bool isMultiResolution, int64_t dynamicRangeProfile, int64_t streamUseCase,
38 bool deviceTimeBaseIsRealtime, int timestampBase, int32_t colorSpace) :
39 Camera3Stream(id, type,
40 width, height, maxSize, format, dataSpace, rotation,
41 physicalCameraId, sensorPixelModesUsed, setId, isMultiResolution,
42 dynamicRangeProfile, streamUseCase, deviceTimeBaseIsRealtime, timestampBase,
43 colorSpace),
44 mTotalBufferCount(0),
45 mMaxCachedBufferCount(0),
46 mHandoutTotalBufferCount(0),
47 mHandoutOutputBufferCount(0),
48 mCachedOutputBufferCount(0),
49 mFrameCount(0),
50 mLastTimestamp(0) {
51
52 mCombinedFence = new Fence();
53
54 if (maxSize > 0 &&
55 (format != HAL_PIXEL_FORMAT_BLOB && format != HAL_PIXEL_FORMAT_RAW_OPAQUE)) {
56 ALOGE("%s: Bad format for size-only stream: %d", __FUNCTION__,
57 format);
58 mState = STATE_ERROR;
59 }
60 }
61
~Camera3IOStreamBase()62 Camera3IOStreamBase::~Camera3IOStreamBase() {
63 disconnectLocked();
64 }
65
hasOutstandingBuffersLocked() const66 bool Camera3IOStreamBase::hasOutstandingBuffersLocked() const {
67 nsecs_t signalTime = mCombinedFence->getSignalTime();
68 ALOGV("%s: Stream %d: Has %zu outstanding buffers,"
69 " buffer signal time is %" PRId64,
70 __FUNCTION__, mId, mHandoutTotalBufferCount, signalTime);
71 if (mHandoutTotalBufferCount > 0 || signalTime == INT64_MAX) {
72 return true;
73 }
74 return false;
75 }
76
dump(int fd,const Vector<String16> & args) const77 void Camera3IOStreamBase::dump(int fd, [[maybe_unused]] const Vector<String16> &args) const {
78 String8 lines;
79
80 uint64_t consumerUsage = 0;
81 status_t res = getEndpointUsage(&consumerUsage);
82 if (res != OK) consumerUsage = 0;
83
84 lines.appendFormat(" State: %d\n", mState);
85 lines.appendFormat(" Dims: %d x %d, format 0x%x, dataspace 0x%x\n",
86 camera_stream::width, camera_stream::height,
87 camera_stream::format, camera_stream::data_space);
88 lines.appendFormat(" Max size: %zu\n", mMaxSize);
89 lines.appendFormat(" Combined usage: 0x%" PRIx64 ", max HAL buffers: %d\n",
90 mUsage | consumerUsage, camera_stream::max_buffers);
91 if (strlen(camera_stream::physical_camera_id) > 0) {
92 lines.appendFormat(" Physical camera id: %s\n", camera_stream::physical_camera_id);
93 }
94 lines.appendFormat(" Dynamic Range Profile: 0x%" PRIx64 "\n",
95 camera_stream::dynamic_range_profile);
96 lines.appendFormat(" Color Space: %d\n", camera_stream::color_space);
97 lines.appendFormat(" Stream use case: %" PRId64 "\n", camera_stream::use_case);
98 lines.appendFormat(" Timestamp base: %d\n", getTimestampBase());
99 lines.appendFormat(" Frames produced: %d, last timestamp: %" PRId64 " ns\n",
100 mFrameCount, mLastTimestamp);
101 lines.appendFormat(" Total buffers: %zu, currently dequeued: %zu, currently cached: %zu\n",
102 mTotalBufferCount, mHandoutTotalBufferCount, mCachedOutputBufferCount);
103 write(fd, lines.string(), lines.size());
104
105 Camera3Stream::dump(fd, args);
106 }
107
configureQueueLocked()108 status_t Camera3IOStreamBase::configureQueueLocked() {
109 status_t res;
110
111 switch (mState) {
112 case STATE_IN_RECONFIG:
113 res = disconnectLocked();
114 if (res != OK) {
115 return res;
116 }
117 break;
118 case STATE_IN_CONFIG:
119 // OK
120 break;
121 default:
122 ALOGE("%s: Bad state: %d", __FUNCTION__, mState);
123 return INVALID_OPERATION;
124 }
125
126 return OK;
127 }
128
getBufferCountLocked()129 size_t Camera3IOStreamBase::getBufferCountLocked() {
130 return mTotalBufferCount;
131 }
132
getHandoutOutputBufferCountLocked() const133 size_t Camera3IOStreamBase::getHandoutOutputBufferCountLocked() const {
134 return mHandoutOutputBufferCount;
135 }
136
getHandoutInputBufferCountLocked()137 size_t Camera3IOStreamBase::getHandoutInputBufferCountLocked() {
138 return (mHandoutTotalBufferCount - mHandoutOutputBufferCount);
139 }
140
getCachedOutputBufferCountLocked() const141 size_t Camera3IOStreamBase::getCachedOutputBufferCountLocked() const {
142 return mCachedOutputBufferCount;
143 }
144
getMaxCachedOutputBuffersLocked() const145 size_t Camera3IOStreamBase::getMaxCachedOutputBuffersLocked() const {
146 return mMaxCachedBufferCount;
147 }
148
disconnectLocked()149 status_t Camera3IOStreamBase::disconnectLocked() {
150 switch (mState) {
151 case STATE_IN_RECONFIG:
152 case STATE_CONFIGURED:
153 case STATE_ABANDONED:
154 // OK
155 break;
156 default:
157 // No connection, nothing to do
158 ALOGV("%s: Stream %d: Already disconnected",
159 __FUNCTION__, mId);
160 return -ENOTCONN;
161 }
162
163 if (mHandoutTotalBufferCount > 0) {
164 ALOGE("%s: Can't disconnect with %zu buffers still dequeued!",
165 __FUNCTION__, mHandoutTotalBufferCount);
166 return INVALID_OPERATION;
167 }
168
169 return OK;
170 }
171
handoutBufferLocked(camera_stream_buffer & buffer,buffer_handle_t * handle,int acquireFence,int releaseFence,camera_buffer_status_t status,bool output)172 void Camera3IOStreamBase::handoutBufferLocked(camera_stream_buffer &buffer,
173 buffer_handle_t *handle,
174 int acquireFence,
175 int releaseFence,
176 camera_buffer_status_t status,
177 bool output) {
178 /**
179 * Note that all fences are now owned by HAL.
180 */
181
182 // Handing out a raw pointer to this object. Increment internal refcount.
183 incStrong(this);
184 buffer.stream = this;
185 buffer.buffer = handle;
186 buffer.acquire_fence = acquireFence;
187 buffer.release_fence = releaseFence;
188 buffer.status = status;
189
190 // Inform tracker about becoming busy
191 if (mHandoutTotalBufferCount == 0 && mState != STATE_IN_CONFIG &&
192 mState != STATE_IN_RECONFIG && mState != STATE_PREPARING) {
193 /**
194 * Avoid a spurious IDLE->ACTIVE->IDLE transition when using buffers
195 * before/after register_stream_buffers during initial configuration
196 * or re-configuration, or during prepare pre-allocation
197 */
198 sp<StatusTracker> statusTracker = mStatusTracker.promote();
199 if (statusTracker != 0) {
200 statusTracker->markComponentActive(mStatusId);
201 }
202 }
203 mHandoutTotalBufferCount++;
204
205 if (output) {
206 mHandoutOutputBufferCount++;
207 }
208 }
209
getBufferPreconditionCheckLocked() const210 status_t Camera3IOStreamBase::getBufferPreconditionCheckLocked() const {
211 // Allow dequeue during IN_[RE]CONFIG for registration, in
212 // PREPARING for pre-allocation
213 if (mState != STATE_CONFIGURED &&
214 mState != STATE_IN_CONFIG && mState != STATE_IN_RECONFIG &&
215 mState != STATE_PREPARING) {
216 ALOGE("%s: Stream %d: Can't get buffers in unconfigured state %d",
217 __FUNCTION__, mId, mState);
218 return INVALID_OPERATION;
219 }
220
221 return OK;
222 }
223
returnBufferPreconditionCheckLocked() const224 status_t Camera3IOStreamBase::returnBufferPreconditionCheckLocked() const {
225 // Allow buffers to be returned in the error state, to allow for disconnect
226 // and in the in-config states for registration
227 if (mState == STATE_CONSTRUCTED) {
228 ALOGE("%s: Stream %d: Can't return buffers in unconfigured state %d",
229 __FUNCTION__, mId, mState);
230 return INVALID_OPERATION;
231 }
232 if (mHandoutTotalBufferCount == 0) {
233 ALOGE("%s: Stream %d: No buffers outstanding to return", __FUNCTION__,
234 mId);
235 return INVALID_OPERATION;
236 }
237
238 return OK;
239 }
240
returnAnyBufferLocked(const camera_stream_buffer & buffer,nsecs_t timestamp,nsecs_t readoutTimestamp,bool output,int32_t transform,const std::vector<size_t> & surface_ids)241 status_t Camera3IOStreamBase::returnAnyBufferLocked(
242 const camera_stream_buffer &buffer,
243 nsecs_t timestamp,
244 nsecs_t readoutTimestamp,
245 bool output,
246 int32_t transform,
247 const std::vector<size_t>& surface_ids) {
248 status_t res;
249
250 // returnBuffer may be called from a raw pointer, not a sp<>, and we'll be
251 // decrementing the internal refcount next. In case this is the last ref, we
252 // might get destructed on the decStrong(), so keep an sp around until the
253 // end of the call - otherwise have to sprinkle the decStrong on all exit
254 // points.
255 sp<Camera3IOStreamBase> keepAlive(this);
256 decStrong(this);
257
258 if ((res = returnBufferPreconditionCheckLocked()) != OK) {
259 return res;
260 }
261
262 sp<Fence> releaseFence;
263 res = returnBufferCheckedLocked(buffer, timestamp, readoutTimestamp,
264 output, transform, surface_ids,
265 &releaseFence);
266 // Res may be an error, but we still want to decrement our owned count
267 // to enable clean shutdown. So we'll just return the error but otherwise
268 // carry on
269
270 if (releaseFence != 0) {
271 mCombinedFence = Fence::merge(mName, mCombinedFence, releaseFence);
272 }
273
274 if (output) {
275 mHandoutOutputBufferCount--;
276 }
277
278 mHandoutTotalBufferCount--;
279 if (mHandoutTotalBufferCount == 0 && mState != STATE_IN_CONFIG &&
280 mState != STATE_IN_RECONFIG && mState != STATE_PREPARING) {
281 /**
282 * Avoid a spurious IDLE->ACTIVE->IDLE transition when using buffers
283 * before/after register_stream_buffers during initial configuration
284 * or re-configuration, or during prepare pre-allocation
285 */
286 ALOGV("%s: Stream %d: All buffers returned; now idle", __FUNCTION__,
287 mId);
288 sp<StatusTracker> statusTracker = mStatusTracker.promote();
289 if (statusTracker != 0) {
290 statusTracker->markComponentIdle(mStatusId, mCombinedFence);
291 }
292 }
293
294 if (output) {
295 mLastTimestamp = timestamp;
296 }
297
298 return res;
299 }
300
301
302
303 }; // namespace camera3
304
305 }; // namespace android
306