IGraphicBufferProducer.h revision 127fc63e8a15366b4395f1363e8e18eb058d1709
1/* 2 * Copyright (C) 2010 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#ifndef ANDROID_GUI_IGRAPHICBUFFERPRODUCER_H 18#define ANDROID_GUI_IGRAPHICBUFFERPRODUCER_H 19 20#include <stdint.h> 21#include <sys/types.h> 22 23#include <utils/Errors.h> 24#include <utils/RefBase.h> 25 26#include <binder/IInterface.h> 27 28#include <ui/Fence.h> 29#include <ui/GraphicBuffer.h> 30#include <ui/Rect.h> 31#include <ui/Region.h> 32 33namespace android { 34// ---------------------------------------------------------------------------- 35 36class IProducerListener; 37class NativeHandle; 38class Surface; 39 40/* 41 * This class defines the Binder IPC interface for the producer side of 42 * a queue of graphics buffers. It's used to send graphics data from one 43 * component to another. For example, a class that decodes video for 44 * playback might use this to provide frames. This is typically done 45 * indirectly, through Surface. 46 * 47 * The underlying mechanism is a BufferQueue, which implements 48 * BnGraphicBufferProducer. In normal operation, the producer calls 49 * dequeueBuffer() to get an empty buffer, fills it with data, then 50 * calls queueBuffer() to make it available to the consumer. 51 * 52 * This class was previously called ISurfaceTexture. 53 */ 54class IGraphicBufferProducer : public IInterface 55{ 56public: 57 DECLARE_META_INTERFACE(GraphicBufferProducer); 58 59 enum { 60 // A flag returned by dequeueBuffer when the client needs to call 61 // requestBuffer immediately thereafter. 62 BUFFER_NEEDS_REALLOCATION = 0x1, 63 // A flag returned by dequeueBuffer when all mirrored slots should be 64 // released by the client. This flag should always be processed first. 65 RELEASE_ALL_BUFFERS = 0x2, 66 }; 67 68 // requestBuffer requests a new buffer for the given index. The server (i.e. 69 // the IGraphicBufferProducer implementation) assigns the newly created 70 // buffer to the given slot index, and the client is expected to mirror the 71 // slot->buffer mapping so that it's not necessary to transfer a 72 // GraphicBuffer for every dequeue operation. 73 // 74 // The slot must be in the range of [0, NUM_BUFFER_SLOTS). 75 // 76 // Return of a value other than NO_ERROR means an error has occurred: 77 // * NO_INIT - the buffer queue has been abandoned or the producer is not 78 // connected. 79 // * BAD_VALUE - one of the two conditions occurred: 80 // * slot was out of range (see above) 81 // * buffer specified by the slot is not dequeued 82 virtual status_t requestBuffer(int slot, sp<GraphicBuffer>* buf) = 0; 83 84 // setMaxDequeuedBufferCount sets the maximum number of buffers that can be 85 // dequeued by the producer at one time. If this method succeeds, buffer 86 // slots will be both unallocated and owned by the BufferQueue object (i.e. 87 // they are not owned by the producer or consumer). Calling this will also 88 // cause all buffer slots to be emptied. If the caller is caching the 89 // contents of the buffer slots, it should empty that cache after calling 90 // this method. 91 // 92 // This function should not be called when there are any currently dequeued 93 // buffer slots. Doing so will result in a BAD_VALUE error. 94 // 95 // The buffer count should be at least 1 (inclusive), but at most 96 // (NUM_BUFFER_SLOTS - the minimum undequeued buffer count) (exclusive). The 97 // minimum undequeued buffer count can be obtained by calling 98 // query(NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS). 99 // 100 // Return of a value other than NO_ERROR means an error has occurred: 101 // * NO_INIT - the buffer queue has been abandoned. 102 // * BAD_VALUE - one of the below conditions occurred: 103 // * bufferCount was out of range (see above) 104 // * client has one or more buffers dequeued 105 // * this call would cause the maxBufferCount value to be exceeded 106 virtual status_t setMaxDequeuedBufferCount(int maxDequeuedBuffers) = 0; 107 108 // Set the async flag if the producer intends to asynchronously queue 109 // buffers without blocking. Typically this is used for triple-buffering 110 // and/or when the swap interval is set to zero. 111 // 112 // Enabling async mode will internally allocate an additional buffer to 113 // allow for the asynchronous behavior. If it is not enabled queue/dequeue 114 // calls may block. 115 // 116 // Return of a value other than NO_ERROR means an error has occurred: 117 // * NO_INIT - the buffer queue has been abandoned. 118 // * BAD_VALUE - this call would cause the maxBufferCount value to be 119 // exceeded 120 virtual status_t setAsyncMode(bool async) = 0; 121 122 // dequeueBuffer requests a new buffer slot for the client to use. Ownership 123 // of the slot is transfered to the client, meaning that the server will not 124 // use the contents of the buffer associated with that slot. 125 // 126 // The slot index returned may or may not contain a buffer (client-side). 127 // If the slot is empty the client should call requestBuffer to assign a new 128 // buffer to that slot. 129 // 130 // Once the client is done filling this buffer, it is expected to transfer 131 // buffer ownership back to the server with either cancelBuffer on 132 // the dequeued slot or to fill in the contents of its associated buffer 133 // contents and call queueBuffer. 134 // 135 // If dequeueBuffer returns the BUFFER_NEEDS_REALLOCATION flag, the client is 136 // expected to call requestBuffer immediately. 137 // 138 // If dequeueBuffer returns the RELEASE_ALL_BUFFERS flag, the client is 139 // expected to release all of the mirrored slot->buffer mappings. 140 // 141 // The fence parameter will be updated to hold the fence associated with 142 // the buffer. The contents of the buffer must not be overwritten until the 143 // fence signals. If the fence is Fence::NO_FENCE, the buffer may be written 144 // immediately. 145 // 146 // The width and height parameters must be no greater than the minimum of 147 // GL_MAX_VIEWPORT_DIMS and GL_MAX_TEXTURE_SIZE (see: glGetIntegerv). 148 // An error due to invalid dimensions might not be reported until 149 // updateTexImage() is called. If width and height are both zero, the 150 // default values specified by setDefaultBufferSize() are used instead. 151 // 152 // If the format is 0, the default format will be used. 153 // 154 // The usage argument specifies gralloc buffer usage flags. The values 155 // are enumerated in <gralloc.h>, e.g. GRALLOC_USAGE_HW_RENDER. These 156 // will be merged with the usage flags specified by 157 // IGraphicBufferConsumer::setConsumerUsageBits. 158 // 159 // This call will block until a buffer is available to be dequeued. If 160 // both the producer and consumer are controlled by the app, then this call 161 // can never block and will return WOULD_BLOCK if no buffer is available. 162 // 163 // A non-negative value with flags set (see above) will be returned upon 164 // success. 165 // 166 // Return of a negative means an error has occurred: 167 // * NO_INIT - the buffer queue has been abandoned or the producer is not 168 // connected. 169 // * BAD_VALUE - both in async mode and buffer count was less than the 170 // max numbers of buffers that can be allocated at once. 171 // * INVALID_OPERATION - cannot attach the buffer because it would cause 172 // too many buffers to be dequeued, either because 173 // the producer already has a single buffer dequeued 174 // and did not set a buffer count, or because a 175 // buffer count was set and this call would cause 176 // it to be exceeded. 177 // * WOULD_BLOCK - no buffer is currently available, and blocking is disabled 178 // since both the producer/consumer are controlled by app 179 // * NO_MEMORY - out of memory, cannot allocate the graphics buffer. 180 // * TIMED_OUT - the timeout set by setDequeueTimeout was exceeded while 181 // waiting for a buffer to become available. 182 // 183 // All other negative values are an unknown error returned downstream 184 // from the graphics allocator (typically errno). 185 virtual status_t dequeueBuffer(int* slot, sp<Fence>* fence, uint32_t w, 186 uint32_t h, PixelFormat format, uint32_t usage) = 0; 187 188 // detachBuffer attempts to remove all ownership of the buffer in the given 189 // slot from the buffer queue. If this call succeeds, the slot will be 190 // freed, and there will be no way to obtain the buffer from this interface. 191 // The freed slot will remain unallocated until either it is selected to 192 // hold a freshly allocated buffer in dequeueBuffer or a buffer is attached 193 // to the slot. The buffer must have already been dequeued, and the caller 194 // must already possesses the sp<GraphicBuffer> (i.e., must have called 195 // requestBuffer). 196 // 197 // Return of a value other than NO_ERROR means an error has occurred: 198 // * NO_INIT - the buffer queue has been abandoned or the producer is not 199 // connected. 200 // * BAD_VALUE - the given slot number is invalid, either because it is 201 // out of the range [0, NUM_BUFFER_SLOTS), or because the slot 202 // it refers to is not currently dequeued and requested. 203 virtual status_t detachBuffer(int slot) = 0; 204 205 // detachNextBuffer is equivalent to calling dequeueBuffer, requestBuffer, 206 // and detachBuffer in sequence, except for two things: 207 // 208 // 1) It is unnecessary to know the dimensions, format, or usage of the 209 // next buffer. 210 // 2) It will not block, since if it cannot find an appropriate buffer to 211 // return, it will return an error instead. 212 // 213 // Only slots that are free but still contain a GraphicBuffer will be 214 // considered, and the oldest of those will be returned. outBuffer is 215 // equivalent to outBuffer from the requestBuffer call, and outFence is 216 // equivalent to fence from the dequeueBuffer call. 217 // 218 // Return of a value other than NO_ERROR means an error has occurred: 219 // * NO_INIT - the buffer queue has been abandoned or the producer is not 220 // connected. 221 // * BAD_VALUE - either outBuffer or outFence were NULL. 222 // * NO_MEMORY - no slots were found that were both free and contained a 223 // GraphicBuffer. 224 virtual status_t detachNextBuffer(sp<GraphicBuffer>* outBuffer, 225 sp<Fence>* outFence) = 0; 226 227 // attachBuffer attempts to transfer ownership of a buffer to the buffer 228 // queue. If this call succeeds, it will be as if this buffer was dequeued 229 // from the returned slot number. As such, this call will fail if attaching 230 // this buffer would cause too many buffers to be simultaneously dequeued. 231 // 232 // If attachBuffer returns the RELEASE_ALL_BUFFERS flag, the caller is 233 // expected to release all of the mirrored slot->buffer mappings. 234 // 235 // A non-negative value with flags set (see above) will be returned upon 236 // success. 237 // 238 // Return of a negative value means an error has occurred: 239 // * NO_INIT - the buffer queue has been abandoned or the producer is not 240 // connected. 241 // * BAD_VALUE - outSlot or buffer were NULL, invalid combination of 242 // async mode and buffer count override, or the generation 243 // number of the buffer did not match the buffer queue. 244 // * INVALID_OPERATION - cannot attach the buffer because it would cause 245 // too many buffers to be dequeued, either because 246 // the producer already has a single buffer dequeued 247 // and did not set a buffer count, or because a 248 // buffer count was set and this call would cause 249 // it to be exceeded. 250 // * WOULD_BLOCK - no buffer slot is currently available, and blocking is 251 // disabled since both the producer/consumer are 252 // controlled by the app. 253 // * TIMED_OUT - the timeout set by setDequeueTimeout was exceeded while 254 // waiting for a slot to become available. 255 virtual status_t attachBuffer(int* outSlot, 256 const sp<GraphicBuffer>& buffer) = 0; 257 258 // queueBuffer indicates that the client has finished filling in the 259 // contents of the buffer associated with slot and transfers ownership of 260 // that slot back to the server. 261 // 262 // It is not valid to call queueBuffer on a slot that is not owned 263 // by the client or one for which a buffer associated via requestBuffer 264 // (an attempt to do so will fail with a return value of BAD_VALUE). 265 // 266 // In addition, the input must be described by the client (as documented 267 // below). Any other properties (zero point, etc) 268 // are client-dependent, and should be documented by the client. 269 // 270 // The slot must be in the range of [0, NUM_BUFFER_SLOTS). 271 // 272 // Upon success, the output will be filled with meaningful values 273 // (refer to the documentation below). 274 // 275 // Return of a value other than NO_ERROR means an error has occurred: 276 // * NO_INIT - the buffer queue has been abandoned or the producer is not 277 // connected. 278 // * BAD_VALUE - one of the below conditions occurred: 279 // * fence was NULL 280 // * scaling mode was unknown 281 // * both in async mode and buffer count was less than the 282 // max numbers of buffers that can be allocated at once 283 // * slot index was out of range (see above). 284 // * the slot was not in the dequeued state 285 // * the slot was enqueued without requesting a buffer 286 // * crop rect is out of bounds of the buffer dimensions 287 288 struct QueueBufferInput : public Flattenable<QueueBufferInput> { 289 friend class Flattenable<QueueBufferInput>; 290 inline QueueBufferInput(const Parcel& parcel); 291 // timestamp - a monotonically increasing value in nanoseconds 292 // isAutoTimestamp - if the timestamp was synthesized at queue time 293 // dataSpace - description of the contents, interpretation depends on format 294 // crop - a crop rectangle that's used as a hint to the consumer 295 // scalingMode - a set of flags from NATIVE_WINDOW_SCALING_* in <window.h> 296 // transform - a set of flags from NATIVE_WINDOW_TRANSFORM_* in <window.h> 297 // fence - a fence that the consumer must wait on before reading the buffer, 298 // set this to Fence::NO_FENCE if the buffer is ready immediately 299 // sticky - the sticky transform set in Surface (only used by the LEGACY 300 // camera mode). 301 inline QueueBufferInput(int64_t timestamp, bool isAutoTimestamp, 302 android_dataspace dataSpace, const Rect& crop, int scalingMode, 303 uint32_t transform, const sp<Fence>& fence, uint32_t sticky = 0) 304 : timestamp(timestamp), isAutoTimestamp(isAutoTimestamp), 305 dataSpace(dataSpace), crop(crop), scalingMode(scalingMode), 306 transform(transform), stickyTransform(sticky), fence(fence), 307 surfaceDamage() { } 308 inline void deflate(int64_t* outTimestamp, bool* outIsAutoTimestamp, 309 android_dataspace* outDataSpace, 310 Rect* outCrop, int* outScalingMode, 311 uint32_t* outTransform, sp<Fence>* outFence, 312 uint32_t* outStickyTransform = NULL) const { 313 *outTimestamp = timestamp; 314 *outIsAutoTimestamp = bool(isAutoTimestamp); 315 *outDataSpace = dataSpace; 316 *outCrop = crop; 317 *outScalingMode = scalingMode; 318 *outTransform = transform; 319 *outFence = fence; 320 if (outStickyTransform != NULL) { 321 *outStickyTransform = stickyTransform; 322 } 323 } 324 325 // Flattenable protocol 326 size_t getFlattenedSize() const; 327 size_t getFdCount() const; 328 status_t flatten(void*& buffer, size_t& size, int*& fds, size_t& count) const; 329 status_t unflatten(void const*& buffer, size_t& size, int const*& fds, size_t& count); 330 331 const Region& getSurfaceDamage() const { return surfaceDamage; } 332 void setSurfaceDamage(const Region& damage) { surfaceDamage = damage; } 333 334 private: 335 int64_t timestamp; 336 int isAutoTimestamp; 337 android_dataspace dataSpace; 338 Rect crop; 339 int scalingMode; 340 uint32_t transform; 341 uint32_t stickyTransform; 342 sp<Fence> fence; 343 Region surfaceDamage; 344 }; 345 346 // QueueBufferOutput must be a POD structure 347 struct __attribute__ ((__packed__)) QueueBufferOutput { 348 inline QueueBufferOutput() { } 349 // outWidth - filled with default width applied to the buffer 350 // outHeight - filled with default height applied to the buffer 351 // outTransformHint - filled with default transform applied to the buffer 352 // outNumPendingBuffers - num buffers queued that haven't yet been acquired 353 // (counting the currently queued buffer) 354 inline void deflate(uint32_t* outWidth, 355 uint32_t* outHeight, 356 uint32_t* outTransformHint, 357 uint32_t* outNumPendingBuffers) const { 358 *outWidth = width; 359 *outHeight = height; 360 *outTransformHint = transformHint; 361 *outNumPendingBuffers = numPendingBuffers; 362 } 363 inline void inflate(uint32_t inWidth, uint32_t inHeight, 364 uint32_t inTransformHint, uint32_t inNumPendingBuffers) { 365 width = inWidth; 366 height = inHeight; 367 transformHint = inTransformHint; 368 numPendingBuffers = inNumPendingBuffers; 369 } 370 private: 371 uint32_t width; 372 uint32_t height; 373 uint32_t transformHint; 374 uint32_t numPendingBuffers; 375 }; 376 377 virtual status_t queueBuffer(int slot, const QueueBufferInput& input, 378 QueueBufferOutput* output) = 0; 379 380 // cancelBuffer indicates that the client does not wish to fill in the 381 // buffer associated with slot and transfers ownership of the slot back to 382 // the server. 383 // 384 // The buffer is not queued for use by the consumer. 385 // 386 // The slot must be in the range of [0, NUM_BUFFER_SLOTS). 387 // 388 // The buffer will not be overwritten until the fence signals. The fence 389 // will usually be the one obtained from dequeueBuffer. 390 // 391 // Return of a value other than NO_ERROR means an error has occurred: 392 // * NO_INIT - the buffer queue has been abandoned or the producer is not 393 // connected. 394 // * BAD_VALUE - one of the below conditions occurred: 395 // * fence was NULL 396 // * slot index was out of range (see above). 397 // * the slot was not in the dequeued state 398 virtual status_t cancelBuffer(int slot, const sp<Fence>& fence) = 0; 399 400 // query retrieves some information for this surface 401 // 'what' tokens allowed are that of NATIVE_WINDOW_* in <window.h> 402 // 403 // Return of a value other than NO_ERROR means an error has occurred: 404 // * NO_INIT - the buffer queue has been abandoned. 405 // * BAD_VALUE - what was out of range 406 virtual int query(int what, int* value) = 0; 407 408 // connect attempts to connect a client API to the IGraphicBufferProducer. 409 // This must be called before any other IGraphicBufferProducer methods are 410 // called except for getAllocator. A consumer must be already connected. 411 // 412 // This method will fail if the connect was previously called on the 413 // IGraphicBufferProducer and no corresponding disconnect call was made. 414 // 415 // The listener is an optional binder callback object that can be used if 416 // the producer wants to be notified when the consumer releases a buffer 417 // back to the BufferQueue. It is also used to detect the death of the 418 // producer. If only the latter functionality is desired, there is a 419 // DummyProducerListener class in IProducerListener.h that can be used. 420 // 421 // The api should be one of the NATIVE_WINDOW_API_* values in <window.h> 422 // 423 // The producerControlledByApp should be set to true if the producer is hosted 424 // by an untrusted process (typically app_process-forked processes). If both 425 // the producer and the consumer are app-controlled then all buffer queues 426 // will operate in async mode regardless of the async flag. 427 // 428 // Upon success, the output will be filled with meaningful data 429 // (refer to QueueBufferOutput documentation above). 430 // 431 // Return of a value other than NO_ERROR means an error has occurred: 432 // * NO_INIT - one of the following occurred: 433 // * the buffer queue was abandoned 434 // * no consumer has yet connected 435 // * BAD_VALUE - one of the following has occurred: 436 // * the producer is already connected 437 // * api was out of range (see above). 438 // * output was NULL. 439 // * DEAD_OBJECT - the token is hosted by an already-dead process 440 // 441 // Additional negative errors may be returned by the internals, they 442 // should be treated as opaque fatal unrecoverable errors. 443 virtual status_t connect(const sp<IProducerListener>& listener, 444 int api, bool producerControlledByApp, QueueBufferOutput* output) = 0; 445 446 // disconnect attempts to disconnect a client API from the 447 // IGraphicBufferProducer. Calling this method will cause any subsequent 448 // calls to other IGraphicBufferProducer methods to fail except for 449 // getAllocator and connect. Successfully calling connect after this will 450 // allow the other methods to succeed again. 451 // 452 // This method will fail if the the IGraphicBufferProducer is not currently 453 // connected to the specified client API. 454 // 455 // The api should be one of the NATIVE_WINDOW_API_* values in <window.h> 456 // 457 // Disconnecting from an abandoned IGraphicBufferProducer is legal and 458 // is considered a no-op. 459 // 460 // Return of a value other than NO_ERROR means an error has occurred: 461 // * BAD_VALUE - one of the following has occurred: 462 // * the api specified does not match the one that was connected 463 // * api was out of range (see above). 464 // * DEAD_OBJECT - the token is hosted by an already-dead process 465 virtual status_t disconnect(int api) = 0; 466 467 // Attaches a sideband buffer stream to the IGraphicBufferProducer. 468 // 469 // A sideband stream is a device-specific mechanism for passing buffers 470 // from the producer to the consumer without using dequeueBuffer/ 471 // queueBuffer. If a sideband stream is present, the consumer can choose 472 // whether to acquire buffers from the sideband stream or from the queued 473 // buffers. 474 // 475 // Passing NULL or a different stream handle will detach the previous 476 // handle if any. 477 virtual status_t setSidebandStream(const sp<NativeHandle>& stream) = 0; 478 479 // Allocates buffers based on the given dimensions/format. 480 // 481 // This function will allocate up to the maximum number of buffers 482 // permitted by the current BufferQueue configuration. It will use the 483 // given format, dimensions, and usage bits, which are interpreted in the 484 // same way as for dequeueBuffer, and the async flag must be set the same 485 // way as for dequeueBuffer to ensure that the correct number of buffers are 486 // allocated. This is most useful to avoid an allocation delay during 487 // dequeueBuffer. If there are already the maximum number of buffers 488 // allocated, this function has no effect. 489 virtual void allocateBuffers(uint32_t width, uint32_t height, 490 PixelFormat format, uint32_t usage) = 0; 491 492 // Sets whether dequeueBuffer is allowed to allocate new buffers. 493 // 494 // Normally dequeueBuffer does not discriminate between free slots which 495 // already have an allocated buffer and those which do not, and will 496 // allocate a new buffer if the slot doesn't have a buffer or if the slot's 497 // buffer doesn't match the requested size, format, or usage. This method 498 // allows the producer to restrict the eligible slots to those which already 499 // have an allocated buffer of the correct size, format, and usage. If no 500 // eligible slot is available, dequeueBuffer will block or return an error 501 // as usual. 502 virtual status_t allowAllocation(bool allow) = 0; 503 504 // Sets the current generation number of the BufferQueue. 505 // 506 // This generation number will be inserted into any buffers allocated by the 507 // BufferQueue, and any attempts to attach a buffer with a different 508 // generation number will fail. Buffers already in the queue are not 509 // affected and will retain their current generation number. The generation 510 // number defaults to 0. 511 virtual status_t setGenerationNumber(uint32_t generationNumber) = 0; 512 513 // Returns the name of the connected consumer. 514 virtual String8 getConsumerName() const = 0; 515 516 // Returns the number of the next frame which will be dequeued. 517 virtual uint64_t getNextFrameNumber() const = 0; 518 519 // Used to enable/disable single buffer mode. 520 // 521 // In single buffer mode the last buffer that was dequeued will be cached 522 // and returned to all calls to dequeueBuffer and acquireBuffer. This allows 523 // the producer and consumer to simultaneously access the same buffer. 524 virtual status_t setSingleBufferMode(bool singleBufferMode) = 0; 525 526 // Sets how long dequeueBuffer will wait for a buffer to become available 527 // before returning an error (TIMED_OUT). 528 // 529 // This timeout also affects the attachBuffer call, which will block if 530 // there is not a free slot available into which the attached buffer can be 531 // placed. 532 // 533 // By default, the BufferQueue will wait forever, which is indicated by a 534 // timeout of -1. If set (to a value other than -1), this will disable 535 // non-blocking mode and its corresponding spare buffer (which is used to 536 // ensure a buffer is always available). 537 virtual status_t setDequeueTimeout(nsecs_t timeout) = 0; 538}; 539 540// ---------------------------------------------------------------------------- 541 542class BnGraphicBufferProducer : public BnInterface<IGraphicBufferProducer> 543{ 544public: 545 virtual status_t onTransact( uint32_t code, 546 const Parcel& data, 547 Parcel* reply, 548 uint32_t flags = 0); 549}; 550 551// ---------------------------------------------------------------------------- 552}; // namespace android 553 554#endif // ANDROID_GUI_IGRAPHICBUFFERPRODUCER_H 555