1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/widget/gonk/nativewindow/GonkBufferQueueKK.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,1269 @@
1.4 +/*
1.5 + * Copyright (C) 2012 The Android Open Source Project
1.6 + * Copyright (C) 2013 Mozilla Foundation
1.7 + *
1.8 + * Licensed under the Apache License, Version 2.0 (the "License");
1.9 + * you may not use this file except in compliance with the License.
1.10 + * You may obtain a copy of the License at
1.11 + *
1.12 + * http://www.apache.org/licenses/LICENSE-2.0
1.13 + *
1.14 + * Unless required by applicable law or agreed to in writing, software
1.15 + * distributed under the License is distributed on an "AS IS" BASIS,
1.16 + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
1.17 + * See the License for the specific language governing permissions and
1.18 + * limitations under the License.
1.19 + */
1.20 +
1.21 +#define LOG_TAG "GonkBufferQueue"
1.22 +#define ATRACE_TAG ATRACE_TAG_GRAPHICS
1.23 +#define LOG_NDEBUG 0
1.24 +
1.25 +#define GL_GLEXT_PROTOTYPES
1.26 +#define EGL_EGLEXT_PROTOTYPES
1.27 +
1.28 +#include <utils/Log.h>
1.29 +#include <utils/Trace.h>
1.30 +#include <utils/CallStack.h>
1.31 +#include <cutils/compiler.h>
1.32 +
1.33 +#include "mozilla/layers/GrallocTextureClient.h"
1.34 +#include "mozilla/layers/ImageBridgeChild.h"
1.35 +#include "GonkBufferQueueKK.h"
1.36 +
1.37 +// Macros for including the GonkBufferQueue name in log messages
1.38 +#define ST_LOGV(...) __android_log_print(ANDROID_LOG_VERBOSE, LOG_TAG, __VA_ARGS__)
1.39 +#define ST_LOGD(...) __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, __VA_ARGS__)
1.40 +#define ST_LOGI(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)
1.41 +#define ST_LOGW(...) __android_log_print(ANDROID_LOG_WARN, LOG_TAG, __VA_ARGS__)
1.42 +#define ST_LOGE(...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__)
1.43 +
1.44 +#define ATRACE_BUFFER_INDEX(index)
1.45 +
1.46 +using namespace mozilla;
1.47 +using namespace mozilla::gfx;
1.48 +using namespace mozilla::layers;
1.49 +
1.50 +namespace android {
1.51 +
1.52 +// Get an ID that's unique within this process.
1.53 +static int32_t createProcessUniqueId() {
1.54 + static volatile int32_t globalCounter = 0;
1.55 + return android_atomic_inc(&globalCounter);
1.56 +}
1.57 +
1.58 +static const char* scalingModeName(int scalingMode) {
1.59 + switch (scalingMode) {
1.60 + case NATIVE_WINDOW_SCALING_MODE_FREEZE: return "FREEZE";
1.61 + case NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW: return "SCALE_TO_WINDOW";
1.62 + case NATIVE_WINDOW_SCALING_MODE_SCALE_CROP: return "SCALE_CROP";
1.63 + default: return "Unknown";
1.64 + }
1.65 +}
1.66 +
1.67 +class nsProxyReleaseTask : public Task
1.68 +{
1.69 +public:
1.70 + nsProxyReleaseTask(TextureClient* aClient)
1.71 + : mTextureClient(aClient) {
1.72 + }
1.73 +
1.74 + virtual void Run() MOZ_OVERRIDE
1.75 + {
1.76 + mTextureClient = nullptr;
1.77 + }
1.78 +
1.79 +private:
1.80 + mozilla::RefPtr<TextureClient> mTextureClient;
1.81 +};
1.82 +
1.83 +GonkBufferQueue::GonkBufferQueue(bool allowSynchronousMode,
1.84 + const sp<IGraphicBufferAlloc>& allocator) :
1.85 + mDefaultWidth(1),
1.86 + mDefaultHeight(1),
1.87 + mMaxAcquiredBufferCount(1),
1.88 + mDefaultMaxBufferCount(2),
1.89 + mOverrideMaxBufferCount(0),
1.90 +// mSynchronousMode(true), // GonkBufferQueue always works in sync mode.
1.91 + mConsumerControlledByApp(false),
1.92 + mDequeueBufferCannotBlock(false),
1.93 + mUseAsyncBuffer(true),
1.94 + mConnectedApi(NO_CONNECTED_API),
1.95 + mAbandoned(false),
1.96 + mFrameCounter(0),
1.97 + mBufferHasBeenQueued(false),
1.98 + mDefaultBufferFormat(PIXEL_FORMAT_RGBA_8888),
1.99 + mConsumerUsageBits(0),
1.100 + mTransformHint(0)
1.101 +{
1.102 + // Choose a name using the PID and a process-unique ID.
1.103 + mConsumerName = String8::format("unnamed-%d-%d", getpid(), createProcessUniqueId());
1.104 +
1.105 + ST_LOGV("GonkBufferQueue");
1.106 +}
1.107 +
1.108 +GonkBufferQueue::~GonkBufferQueue() {
1.109 + ST_LOGV("~GonkBufferQueue");
1.110 +}
1.111 +
1.112 +status_t GonkBufferQueue::setDefaultMaxBufferCountLocked(int count) {
1.113 + if (count < 2 || count > NUM_BUFFER_SLOTS)
1.114 + return BAD_VALUE;
1.115 +
1.116 + mDefaultMaxBufferCount = count;
1.117 + mDequeueCondition.broadcast();
1.118 +
1.119 + return NO_ERROR;
1.120 +}
1.121 +
1.122 +void GonkBufferQueue::setConsumerName(const String8& name) {
1.123 + Mutex::Autolock lock(mMutex);
1.124 + mConsumerName = name;
1.125 +}
1.126 +
1.127 +status_t GonkBufferQueue::setDefaultBufferFormat(uint32_t defaultFormat) {
1.128 + Mutex::Autolock lock(mMutex);
1.129 + mDefaultBufferFormat = defaultFormat;
1.130 + return NO_ERROR;
1.131 +}
1.132 +
1.133 +status_t GonkBufferQueue::setConsumerUsageBits(uint32_t usage) {
1.134 + Mutex::Autolock lock(mMutex);
1.135 + mConsumerUsageBits = usage;
1.136 + return NO_ERROR;
1.137 +}
1.138 +
1.139 +status_t GonkBufferQueue::setTransformHint(uint32_t hint) {
1.140 + ST_LOGV("setTransformHint: %02x", hint);
1.141 + Mutex::Autolock lock(mMutex);
1.142 + mTransformHint = hint;
1.143 + return NO_ERROR;
1.144 +}
1.145 +
1.146 +TemporaryRef<TextureClient>
1.147 +GonkBufferQueue::getTextureClientFromBuffer(ANativeWindowBuffer* buffer)
1.148 +{
1.149 + Mutex::Autolock _l(mMutex);
1.150 + if (buffer == NULL) {
1.151 + ST_LOGE("getSlotFromBufferLocked: encountered NULL buffer");
1.152 + return nullptr;
1.153 + }
1.154 +
1.155 + for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
1.156 + if (mSlots[i].mGraphicBuffer != NULL && mSlots[i].mGraphicBuffer->handle == buffer->handle) {
1.157 + return mSlots[i].mTextureClient;
1.158 + }
1.159 + }
1.160 + ST_LOGE("getSlotFromBufferLocked: unknown buffer: %p", buffer->handle);
1.161 + return nullptr;
1.162 +}
1.163 +
1.164 +int GonkBufferQueue::getSlotFromTextureClientLocked(
1.165 + TextureClient* client) const
1.166 +{
1.167 + if (client == NULL) {
1.168 + ST_LOGE("getSlotFromBufferLocked: encountered NULL buffer");
1.169 + return BAD_VALUE;
1.170 + }
1.171 +
1.172 + for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
1.173 + if (mSlots[i].mTextureClient == client) {
1.174 + return i;
1.175 + }
1.176 + }
1.177 + ST_LOGE("getSlotFromBufferLocked: unknown TextureClient: %p", client);
1.178 + return BAD_VALUE;
1.179 +}
1.180 +
1.181 +status_t GonkBufferQueue::setBufferCount(int bufferCount) {
1.182 + ST_LOGV("setBufferCount: count=%d", bufferCount);
1.183 +
1.184 + sp<IConsumerListener> listener;
1.185 + {
1.186 + Mutex::Autolock lock(mMutex);
1.187 +
1.188 + if (mAbandoned) {
1.189 + ST_LOGE("setBufferCount: GonkBufferQueue has been abandoned!");
1.190 + return NO_INIT;
1.191 + }
1.192 + if (bufferCount > NUM_BUFFER_SLOTS) {
1.193 + ST_LOGE("setBufferCount: bufferCount too large (max %d)",
1.194 + NUM_BUFFER_SLOTS);
1.195 + return BAD_VALUE;
1.196 + }
1.197 +
1.198 + // Error out if the user has dequeued buffers
1.199 + for (int i=0 ; i<NUM_BUFFER_SLOTS; i++) {
1.200 + if (mSlots[i].mBufferState == BufferSlot::DEQUEUED) {
1.201 + ST_LOGE("setBufferCount: client owns some buffers");
1.202 + return -EINVAL;
1.203 + }
1.204 + }
1.205 +
1.206 + if (bufferCount == 0) {
1.207 + mOverrideMaxBufferCount = 0;
1.208 + mDequeueCondition.broadcast();
1.209 + return NO_ERROR;
1.210 + }
1.211 +
1.212 + // fine to assume async to false before we're setting the buffer count
1.213 + const int minBufferSlots = getMinMaxBufferCountLocked(false);
1.214 + if (bufferCount < minBufferSlots) {
1.215 + ST_LOGE("setBufferCount: requested buffer count (%d) is less than "
1.216 + "minimum (%d)", bufferCount, minBufferSlots);
1.217 + return BAD_VALUE;
1.218 + }
1.219 +
1.220 + // here we're guaranteed that the client doesn't have dequeued buffers
1.221 + // and will release all of its buffer references. We don't clear the
1.222 + // queue, however, so currently queued buffers still get displayed.
1.223 + // XXX: Should this use drainQueueAndFreeBuffersLocked instead?
1.224 + freeAllBuffersLocked();
1.225 + mOverrideMaxBufferCount = bufferCount;
1.226 + mDequeueCondition.broadcast();
1.227 + listener = mConsumerListener;
1.228 + } // scope for lock
1.229 +
1.230 + if (listener != NULL) {
1.231 + listener->onBuffersReleased();
1.232 + }
1.233 +
1.234 + return NO_ERROR;
1.235 +}
1.236 +
1.237 +int GonkBufferQueue::query(int what, int* outValue)
1.238 +{
1.239 + ATRACE_CALL();
1.240 + Mutex::Autolock lock(mMutex);
1.241 +
1.242 + if (mAbandoned) {
1.243 + ST_LOGE("query: GonkBufferQueue has been abandoned!");
1.244 + return NO_INIT;
1.245 + }
1.246 +
1.247 + int value;
1.248 + switch (what) {
1.249 + case NATIVE_WINDOW_WIDTH:
1.250 + value = mDefaultWidth;
1.251 + break;
1.252 + case NATIVE_WINDOW_HEIGHT:
1.253 + value = mDefaultHeight;
1.254 + break;
1.255 + case NATIVE_WINDOW_FORMAT:
1.256 + value = mDefaultBufferFormat;
1.257 + break;
1.258 + case NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS:
1.259 + value = getMinUndequeuedBufferCount(false);
1.260 + break;
1.261 + case NATIVE_WINDOW_CONSUMER_RUNNING_BEHIND:
1.262 + value = (mQueue.size() >= 2);
1.263 + break;
1.264 + case NATIVE_WINDOW_CONSUMER_USAGE_BITS:
1.265 + value = mConsumerUsageBits;
1.266 + break;
1.267 + default:
1.268 + return BAD_VALUE;
1.269 + }
1.270 + outValue[0] = value;
1.271 + return NO_ERROR;
1.272 +}
1.273 +
1.274 +status_t GonkBufferQueue::requestBuffer(int slot, sp<GraphicBuffer>* buf) {
1.275 + ATRACE_CALL();
1.276 + ST_LOGV("requestBuffer: slot=%d", slot);
1.277 + Mutex::Autolock lock(mMutex);
1.278 + if (mAbandoned) {
1.279 + ST_LOGE("requestBuffer: GonkBufferQueue has been abandoned!");
1.280 + return NO_INIT;
1.281 + }
1.282 + if (slot < 0 || slot >= NUM_BUFFER_SLOTS) {
1.283 + ST_LOGE("requestBuffer: slot index out of range [0, %d]: %d",
1.284 + NUM_BUFFER_SLOTS, slot);
1.285 + return BAD_VALUE;
1.286 + } else if (mSlots[slot].mBufferState != BufferSlot::DEQUEUED) {
1.287 + ST_LOGE("requestBuffer: slot %d is not owned by the client (state=%d)",
1.288 + slot, mSlots[slot].mBufferState);
1.289 + return BAD_VALUE;
1.290 + }
1.291 + mSlots[slot].mRequestBufferCalled = true;
1.292 + *buf = mSlots[slot].mGraphicBuffer;
1.293 + return NO_ERROR;
1.294 +}
1.295 +
1.296 +status_t GonkBufferQueue::dequeueBuffer(int *outBuf, sp<Fence>* outFence, bool async,
1.297 + uint32_t w, uint32_t h, uint32_t format, uint32_t usage) {
1.298 + ATRACE_CALL();
1.299 + ST_LOGV("dequeueBuffer: w=%d h=%d fmt=%#x usage=%#x", w, h, format, usage);
1.300 +
1.301 + if ((w && !h) || (!w && h)) {
1.302 + ST_LOGE("dequeueBuffer: invalid size: w=%u, h=%u", w, h);
1.303 + return BAD_VALUE;
1.304 + }
1.305 +
1.306 + status_t returnFlags(OK);
1.307 + int buf = INVALID_BUFFER_SLOT;
1.308 +
1.309 + { // Scope for the lock
1.310 + Mutex::Autolock lock(mMutex);
1.311 +
1.312 + if (format == 0) {
1.313 + format = mDefaultBufferFormat;
1.314 + }
1.315 + // turn on usage bits the consumer requested
1.316 + usage |= mConsumerUsageBits;
1.317 +
1.318 + int found = -1;
1.319 + bool tryAgain = true;
1.320 + while (tryAgain) {
1.321 + if (mAbandoned) {
1.322 + ST_LOGE("dequeueBuffer: GonkBufferQueue has been abandoned!");
1.323 + return NO_INIT;
1.324 + }
1.325 +
1.326 + const int maxBufferCount = getMaxBufferCountLocked(async);
1.327 + if (async && mOverrideMaxBufferCount) {
1.328 + // FIXME: some drivers are manually setting the buffer-count (which they
1.329 + // shouldn't), so we do this extra test here to handle that case.
1.330 + // This is TEMPORARY, until we get this fixed.
1.331 + if (mOverrideMaxBufferCount < maxBufferCount) {
1.332 + ST_LOGE("dequeueBuffer: async mode is invalid with buffercount override");
1.333 + return BAD_VALUE;
1.334 + }
1.335 + }
1.336 +
1.337 + // Free up any buffers that are in slots beyond the max buffer
1.338 + // count.
1.339 + //for (int i = maxBufferCount; i < NUM_BUFFER_SLOTS; i++) {
1.340 + // assert(mSlots[i].mBufferState == BufferSlot::FREE);
1.341 + // if (mSlots[i].mGraphicBuffer != NULL) {
1.342 + // freeBufferLocked(i);
1.343 + // returnFlags |= IGraphicBufferProducer::RELEASE_ALL_BUFFERS;
1.344 + // }
1.345 + //}
1.346 +
1.347 + // look for a free buffer to give to the client
1.348 + found = INVALID_BUFFER_SLOT;
1.349 + int dequeuedCount = 0;
1.350 + int acquiredCount = 0;
1.351 + for (int i = 0; i < maxBufferCount; i++) {
1.352 + const int state = mSlots[i].mBufferState;
1.353 + switch (state) {
1.354 + case BufferSlot::DEQUEUED:
1.355 + dequeuedCount++;
1.356 + break;
1.357 + case BufferSlot::ACQUIRED:
1.358 + acquiredCount++;
1.359 + break;
1.360 + case BufferSlot::FREE:
1.361 + /* We return the oldest of the free buffers to avoid
1.362 + * stalling the producer if possible. This is because
1.363 + * the consumer may still have pending reads of the
1.364 + * buffers in flight.
1.365 + */
1.366 + if ((found < 0) ||
1.367 + mSlots[i].mFrameNumber < mSlots[found].mFrameNumber) {
1.368 + found = i;
1.369 + }
1.370 + break;
1.371 + }
1.372 + }
1.373 +
1.374 + // clients are not allowed to dequeue more than one buffer
1.375 + // if they didn't set a buffer count.
1.376 + if (!mOverrideMaxBufferCount && dequeuedCount) {
1.377 + ST_LOGE("dequeueBuffer: can't dequeue multiple buffers without "
1.378 + "setting the buffer count");
1.379 + return -EINVAL;
1.380 + }
1.381 +
1.382 + // See whether a buffer has been queued since the last
1.383 + // setBufferCount so we know whether to perform the min undequeued
1.384 + // buffers check below.
1.385 + if (mBufferHasBeenQueued) {
1.386 + // make sure the client is not trying to dequeue more buffers
1.387 + // than allowed.
1.388 + const int newUndequeuedCount = maxBufferCount - (dequeuedCount+1);
1.389 + const int minUndequeuedCount = getMinUndequeuedBufferCount(async);
1.390 + if (newUndequeuedCount < minUndequeuedCount) {
1.391 + ST_LOGE("dequeueBuffer: min undequeued buffer count (%d) "
1.392 + "exceeded (dequeued=%d undequeudCount=%d)",
1.393 + minUndequeuedCount, dequeuedCount,
1.394 + newUndequeuedCount);
1.395 + return -EBUSY;
1.396 + }
1.397 + }
1.398 +
1.399 + // If no buffer is found, wait for a buffer to be released or for
1.400 + // the max buffer count to change.
1.401 + tryAgain = found == INVALID_BUFFER_SLOT;
1.402 + if (tryAgain) {
1.403 + // return an error if we're in "cannot block" mode (producer and consumer
1.404 + // are controlled by the application) -- however, the consumer is allowed
1.405 + // to acquire briefly an extra buffer (which could cause us to have to wait here)
1.406 + // and that's okay because we know the wait will be brief (it happens
1.407 + // if we dequeue a buffer while the consumer has acquired one but not released
1.408 + // the old one yet -- for e.g.: see GLConsumer::updateTexImage()).
1.409 + if (mDequeueBufferCannotBlock && (acquiredCount <= mMaxAcquiredBufferCount)) {
1.410 + ST_LOGE("dequeueBuffer: would block! returning an error instead.");
1.411 + return WOULD_BLOCK;
1.412 + }
1.413 + mDequeueCondition.wait(mMutex);
1.414 + }
1.415 + }
1.416 +
1.417 +
1.418 + if (found == INVALID_BUFFER_SLOT) {
1.419 + // This should not happen.
1.420 + ST_LOGE("dequeueBuffer: no available buffer slots");
1.421 + return -EBUSY;
1.422 + }
1.423 +
1.424 + buf = found;
1.425 + *outBuf = found;
1.426 +
1.427 + const bool useDefaultSize = !w && !h;
1.428 + if (useDefaultSize) {
1.429 + // use the default size
1.430 + w = mDefaultWidth;
1.431 + h = mDefaultHeight;
1.432 + }
1.433 +
1.434 + mSlots[buf].mBufferState = BufferSlot::DEQUEUED;
1.435 +
1.436 + const sp<GraphicBuffer>& buffer(mSlots[buf].mGraphicBuffer);
1.437 + if ((buffer == NULL) ||
1.438 + (uint32_t(buffer->width) != w) ||
1.439 + (uint32_t(buffer->height) != h) ||
1.440 + (uint32_t(buffer->format) != format) ||
1.441 + ((uint32_t(buffer->usage) & usage) != usage))
1.442 + {
1.443 + mSlots[buf].mAcquireCalled = false;
1.444 + mSlots[buf].mGraphicBuffer = NULL;
1.445 + mSlots[buf].mRequestBufferCalled = false;
1.446 + mSlots[buf].mFence = Fence::NO_FENCE;
1.447 + if (mSlots[buf].mTextureClient) {
1.448 + mSlots[buf].mTextureClient->ClearRecycleCallback();
1.449 + // release TextureClient in ImageBridge thread
1.450 + nsProxyReleaseTask* task = new nsProxyReleaseTask(mSlots[buf].mTextureClient);
1.451 + mSlots[buf].mTextureClient = NULL;
1.452 + ImageBridgeChild::GetSingleton()->GetMessageLoop()->PostTask(FROM_HERE, task);
1.453 + }
1.454 + returnFlags |= IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION;
1.455 + }
1.456 +
1.457 +
1.458 + if (CC_UNLIKELY(mSlots[buf].mFence == NULL)) {
1.459 + ST_LOGE("dequeueBuffer: about to return a NULL fence from mSlot. "
1.460 + "buf=%d, w=%d, h=%d, format=%d",
1.461 + buf, buffer->width, buffer->height, buffer->format);
1.462 + }
1.463 + *outFence = mSlots[buf].mFence;
1.464 + mSlots[buf].mFence = Fence::NO_FENCE;
1.465 + } // end lock scope
1.466 +
1.467 + sp<GraphicBuffer> graphicBuffer;
1.468 + if (returnFlags & IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION) {
1.469 + RefPtr<GrallocTextureClientOGL> textureClient =
1.470 + new GrallocTextureClientOGL(ImageBridgeChild::GetSingleton(),
1.471 + gfx::SurfaceFormat::UNKNOWN,
1.472 + gfx::BackendType::NONE,
1.473 + TEXTURE_DEALLOCATE_CLIENT);
1.474 + usage |= GraphicBuffer::USAGE_HW_TEXTURE;
1.475 + bool result = textureClient->AllocateGralloc(IntSize(w, h), format, usage);
1.476 + sp<GraphicBuffer> graphicBuffer = textureClient->GetGraphicBuffer();
1.477 + if (!result || !graphicBuffer.get()) {
1.478 + ST_LOGE("dequeueBuffer: failed to alloc gralloc buffer");
1.479 + return -ENOMEM;
1.480 + }
1.481 +
1.482 + { // Scope for the lock
1.483 + Mutex::Autolock lock(mMutex);
1.484 +
1.485 + if (mAbandoned) {
1.486 + ST_LOGE("dequeueBuffer: SurfaceTexture has been abandoned!");
1.487 + return NO_INIT;
1.488 + }
1.489 +
1.490 + mSlots[buf].mGraphicBuffer = graphicBuffer;
1.491 + mSlots[buf].mTextureClient = textureClient;
1.492 + ST_LOGD("dequeueBuffer: returning slot=%d buf=%p ", buf,
1.493 + mSlots[buf].mGraphicBuffer->handle);
1.494 +
1.495 + }
1.496 +
1.497 + }
1.498 +
1.499 + ST_LOGV("dequeueBuffer: returning slot=%d/%llu buf=%p flags=%#x", *outBuf,
1.500 + mSlots[*outBuf].mFrameNumber,
1.501 + mSlots[*outBuf].mGraphicBuffer->handle, returnFlags);
1.502 +
1.503 + return returnFlags;
1.504 +}
1.505 +
1.506 +status_t GonkBufferQueue::queueBuffer(int buf,
1.507 + const QueueBufferInput& input, QueueBufferOutput* output) {
1.508 + ATRACE_CALL();
1.509 +
1.510 + Rect crop;
1.511 + uint32_t transform;
1.512 + int scalingMode;
1.513 + int64_t timestamp;
1.514 + bool isAutoTimestamp;
1.515 + bool async;
1.516 + sp<Fence> fence;
1.517 +
1.518 + input.deflate(×tamp, &isAutoTimestamp, &crop, &scalingMode, &transform,
1.519 + &async, &fence);
1.520 +
1.521 + if (fence == NULL) {
1.522 + ST_LOGE("queueBuffer: fence is NULL");
1.523 + return BAD_VALUE;
1.524 + }
1.525 +
1.526 + ST_LOGV("queueBuffer: slot=%d time=%#llx crop=[%d,%d,%d,%d] tr=%#x "
1.527 + "scale=%s",
1.528 + buf, timestamp, crop.left, crop.top, crop.right, crop.bottom,
1.529 + transform, scalingModeName(scalingMode));
1.530 +
1.531 + switch (scalingMode) {
1.532 + case NATIVE_WINDOW_SCALING_MODE_FREEZE:
1.533 + case NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW:
1.534 + case NATIVE_WINDOW_SCALING_MODE_SCALE_CROP:
1.535 + case NATIVE_WINDOW_SCALING_MODE_NO_SCALE_CROP:
1.536 + break;
1.537 + default:
1.538 + ST_LOGE("unknown scaling mode: %d", scalingMode);
1.539 + return -EINVAL;
1.540 + }
1.541 +
1.542 + sp<IConsumerListener> listener;
1.543 +
1.544 + { // scope for the lock
1.545 + Mutex::Autolock lock(mMutex);
1.546 +
1.547 + if (mAbandoned) {
1.548 + ST_LOGE("queueBuffer: GonkBufferQueue has been abandoned!");
1.549 + return NO_INIT;
1.550 + }
1.551 +
1.552 + const int maxBufferCount = getMaxBufferCountLocked(async);
1.553 + if (async && mOverrideMaxBufferCount) {
1.554 + // FIXME: some drivers are manually setting the buffer-count (which they
1.555 + // shouldn't), so we do this extra test here to handle that case.
1.556 + // This is TEMPORARY, until we get this fixed.
1.557 + if (mOverrideMaxBufferCount < maxBufferCount) {
1.558 + ST_LOGE("queueBuffer: async mode is invalid with buffercount override");
1.559 + return BAD_VALUE;
1.560 + }
1.561 + }
1.562 + if (buf < 0 || buf >= maxBufferCount) {
1.563 + ST_LOGE("queueBuffer: slot index out of range [0, %d]: %d",
1.564 + maxBufferCount, buf);
1.565 + return -EINVAL;
1.566 + } else if (mSlots[buf].mBufferState != BufferSlot::DEQUEUED) {
1.567 + ST_LOGE("queueBuffer: slot %d is not owned by the client "
1.568 + "(state=%d)", buf, mSlots[buf].mBufferState);
1.569 + return -EINVAL;
1.570 + } else if (!mSlots[buf].mRequestBufferCalled) {
1.571 + ST_LOGE("queueBuffer: slot %d was enqueued without requesting a "
1.572 + "buffer", buf);
1.573 + return -EINVAL;
1.574 + }
1.575 +
1.576 + ST_LOGV("queueBuffer: slot=%d/%llu time=%#llx crop=[%d,%d,%d,%d] "
1.577 + "tr=%#x scale=%s",
1.578 + buf, mFrameCounter + 1, timestamp,
1.579 + crop.left, crop.top, crop.right, crop.bottom,
1.580 + transform, scalingModeName(scalingMode));
1.581 +
1.582 + const sp<GraphicBuffer>& graphicBuffer(mSlots[buf].mGraphicBuffer);
1.583 + Rect bufferRect(graphicBuffer->getWidth(), graphicBuffer->getHeight());
1.584 + Rect croppedCrop;
1.585 + crop.intersect(bufferRect, &croppedCrop);
1.586 + if (croppedCrop != crop) {
1.587 + ST_LOGE("queueBuffer: crop rect is not contained within the "
1.588 + "buffer in slot %d", buf);
1.589 + return -EINVAL;
1.590 + }
1.591 +
1.592 + mSlots[buf].mFence = fence;
1.593 + mSlots[buf].mBufferState = BufferSlot::QUEUED;
1.594 + mFrameCounter++;
1.595 + mSlots[buf].mFrameNumber = mFrameCounter;
1.596 +
1.597 + BufferItem item;
1.598 + item.mAcquireCalled = mSlots[buf].mAcquireCalled;
1.599 + item.mGraphicBuffer = mSlots[buf].mGraphicBuffer;
1.600 + item.mCrop = crop;
1.601 + item.mTransform = transform & ~NATIVE_WINDOW_TRANSFORM_INVERSE_DISPLAY;
1.602 + item.mTransformToDisplayInverse = bool(transform & NATIVE_WINDOW_TRANSFORM_INVERSE_DISPLAY);
1.603 + item.mScalingMode = scalingMode;
1.604 + item.mTimestamp = timestamp;
1.605 + item.mIsAutoTimestamp = isAutoTimestamp;
1.606 + item.mFrameNumber = mFrameCounter;
1.607 + item.mBuf = buf;
1.608 + item.mFence = fence;
1.609 + item.mIsDroppable = mDequeueBufferCannotBlock || async;
1.610 +
1.611 + if (mQueue.empty()) {
1.612 + // when the queue is empty, we can ignore "mDequeueBufferCannotBlock", and
1.613 + // simply queue this buffer.
1.614 + mQueue.push_back(item);
1.615 + listener = mConsumerListener;
1.616 + } else {
1.617 + // when the queue is not empty, we need to look at the front buffer
1.618 + // state and see if we need to replace it.
1.619 + Fifo::iterator front(mQueue.begin());
1.620 + if (front->mIsDroppable) {
1.621 + // buffer slot currently queued is marked free if still tracked
1.622 + if (stillTracking(front)) {
1.623 + mSlots[front->mBuf].mBufferState = BufferSlot::FREE;
1.624 + // reset the frame number of the freed buffer so that it is the first in
1.625 + // line to be dequeued again.
1.626 + mSlots[front->mBuf].mFrameNumber = 0;
1.627 + }
1.628 + // and we record the new buffer in the queued list
1.629 + *front = item;
1.630 + } else {
1.631 + mQueue.push_back(item);
1.632 + listener = mConsumerListener;
1.633 + }
1.634 + }
1.635 +
1.636 + mBufferHasBeenQueued = true;
1.637 + mDequeueCondition.broadcast();
1.638 +
1.639 + output->inflate(mDefaultWidth, mDefaultHeight, mTransformHint,
1.640 + mQueue.size());
1.641 +
1.642 + } // scope for the lock
1.643 +
1.644 + // call back without lock held
1.645 + if (listener != 0) {
1.646 + listener->onFrameAvailable();
1.647 + }
1.648 + return NO_ERROR;
1.649 +}
1.650 +
1.651 +void GonkBufferQueue::cancelBuffer(int buf, const sp<Fence>& fence) {
1.652 + ATRACE_CALL();
1.653 + ST_LOGV("cancelBuffer: slot=%d", buf);
1.654 + Mutex::Autolock lock(mMutex);
1.655 +
1.656 + if (mAbandoned) {
1.657 + ST_LOGW("cancelBuffer: GonkBufferQueue has been abandoned!");
1.658 + return;
1.659 + }
1.660 +
1.661 + if (buf < 0 || buf >= NUM_BUFFER_SLOTS) {
1.662 + ST_LOGE("cancelBuffer: slot index out of range [0, %d]: %d",
1.663 + NUM_BUFFER_SLOTS, buf);
1.664 + return;
1.665 + } else if (mSlots[buf].mBufferState != BufferSlot::DEQUEUED) {
1.666 + ST_LOGE("cancelBuffer: slot %d is not owned by the client (state=%d)",
1.667 + buf, mSlots[buf].mBufferState);
1.668 + return;
1.669 + } else if (fence == NULL) {
1.670 + ST_LOGE("cancelBuffer: fence is NULL");
1.671 + return;
1.672 + }
1.673 + mSlots[buf].mBufferState = BufferSlot::FREE;
1.674 + mSlots[buf].mFrameNumber = 0;
1.675 + mSlots[buf].mFence = fence;
1.676 + mDequeueCondition.broadcast();
1.677 +}
1.678 +
1.679 +
1.680 +status_t GonkBufferQueue::connect(const sp<IBinder>& token,
1.681 + int api, bool producerControlledByApp, QueueBufferOutput* output) {
1.682 + ATRACE_CALL();
1.683 + ST_LOGV("connect: api=%d producerControlledByApp=%s", api,
1.684 + producerControlledByApp ? "true" : "false");
1.685 + Mutex::Autolock lock(mMutex);
1.686 +
1.687 +retry:
1.688 + if (mAbandoned) {
1.689 + ST_LOGE("connect: GonkBufferQueue has been abandoned!");
1.690 + return NO_INIT;
1.691 + }
1.692 +
1.693 + if (mConsumerListener == NULL) {
1.694 + ST_LOGE("connect: GonkBufferQueue has no consumer!");
1.695 + return NO_INIT;
1.696 + }
1.697 +
1.698 + if (mConnectedApi != NO_CONNECTED_API) {
1.699 + ST_LOGE("connect: already connected (cur=%d, req=%d)",
1.700 + mConnectedApi, api);
1.701 + return -EINVAL;
1.702 + }
1.703 +
1.704 + // If we disconnect and reconnect quickly, we can be in a state where our slots are
1.705 + // empty but we have many buffers in the queue. This can cause us to run out of
1.706 + // memory if we outrun the consumer. Wait here if it looks like we have too many
1.707 + // buffers queued up.
1.708 + int maxBufferCount = getMaxBufferCountLocked(false); // worst-case, i.e. largest value
1.709 + if (mQueue.size() > (size_t) maxBufferCount) {
1.710 + // TODO: make this bound tighter?
1.711 + ST_LOGV("queue size is %d, waiting", mQueue.size());
1.712 + mDequeueCondition.wait(mMutex);
1.713 + goto retry;
1.714 + }
1.715 +
1.716 + int err = NO_ERROR;
1.717 + switch (api) {
1.718 + case NATIVE_WINDOW_API_EGL:
1.719 + case NATIVE_WINDOW_API_CPU:
1.720 + case NATIVE_WINDOW_API_MEDIA:
1.721 + case NATIVE_WINDOW_API_CAMERA:
1.722 + mConnectedApi = api;
1.723 + output->inflate(mDefaultWidth, mDefaultHeight, mTransformHint, mQueue.size());
1.724 +
1.725 + // set-up a death notification so that we can disconnect
1.726 + // automatically when/if the remote producer dies.
1.727 + if (token != NULL && token->remoteBinder() != NULL) {
1.728 + status_t err = token->linkToDeath(static_cast<IBinder::DeathRecipient*>(this));
1.729 + if (err == NO_ERROR) {
1.730 + mConnectedProducerToken = token;
1.731 + } else {
1.732 + ALOGE("linkToDeath failed: %s (%d)", strerror(-err), err);
1.733 + }
1.734 + }
1.735 + break;
1.736 + default:
1.737 + err = -EINVAL;
1.738 + break;
1.739 + }
1.740 +
1.741 + mBufferHasBeenQueued = false;
1.742 + mDequeueBufferCannotBlock = mConsumerControlledByApp && producerControlledByApp;
1.743 +
1.744 + return err;
1.745 +}
1.746 +
1.747 +void GonkBufferQueue::binderDied(const wp<IBinder>& who) {
1.748 + // If we're here, it means that a producer we were connected to died.
1.749 + // We're GUARANTEED that we still are connected to it because it has no other way
1.750 + // to get disconnected -- or -- we wouldn't be here because we're removing this
1.751 + // callback upon disconnect. Therefore, it's okay to read mConnectedApi without
1.752 + // synchronization here.
1.753 + int api = mConnectedApi;
1.754 + this->disconnect(api);
1.755 +}
1.756 +
1.757 +status_t GonkBufferQueue::disconnect(int api) {
1.758 + ATRACE_CALL();
1.759 + ST_LOGV("disconnect: api=%d", api);
1.760 +
1.761 + int err = NO_ERROR;
1.762 + sp<IConsumerListener> listener;
1.763 +
1.764 + { // Scope for the lock
1.765 + Mutex::Autolock lock(mMutex);
1.766 +
1.767 + if (mAbandoned) {
1.768 + // it is not really an error to disconnect after the surface
1.769 + // has been abandoned, it should just be a no-op.
1.770 + return NO_ERROR;
1.771 + }
1.772 +
1.773 + switch (api) {
1.774 + case NATIVE_WINDOW_API_EGL:
1.775 + case NATIVE_WINDOW_API_CPU:
1.776 + case NATIVE_WINDOW_API_MEDIA:
1.777 + case NATIVE_WINDOW_API_CAMERA:
1.778 + if (mConnectedApi == api) {
1.779 + freeAllBuffersLocked();
1.780 + mConnectedApi = NO_CONNECTED_API;
1.781 + mDequeueCondition.broadcast();
1.782 + listener = mConsumerListener;
1.783 + } else {
1.784 + ST_LOGE("disconnect: connected to another api (cur=%d, req=%d)",
1.785 + mConnectedApi, api);
1.786 + err = -EINVAL;
1.787 + }
1.788 + break;
1.789 + default:
1.790 + ST_LOGE("disconnect: unknown API %d", api);
1.791 + err = -EINVAL;
1.792 + break;
1.793 + }
1.794 + }
1.795 +
1.796 + if (listener != NULL) {
1.797 + listener->onBuffersReleased();
1.798 + }
1.799 +
1.800 + return err;
1.801 +}
1.802 +
1.803 +void GonkBufferQueue::dump(String8& result, const char* prefix) const {
1.804 + Mutex::Autolock _l(mMutex);
1.805 +
1.806 + String8 fifo;
1.807 + int fifoSize = 0;
1.808 + Fifo::const_iterator i(mQueue.begin());
1.809 + while (i != mQueue.end()) {
1.810 + fifo.appendFormat("%02d:%p crop=[%d,%d,%d,%d], "
1.811 + "xform=0x%02x, time=%#llx, scale=%s\n",
1.812 + i->mBuf, i->mGraphicBuffer.get(),
1.813 + i->mCrop.left, i->mCrop.top, i->mCrop.right,
1.814 + i->mCrop.bottom, i->mTransform, i->mTimestamp,
1.815 + scalingModeName(i->mScalingMode)
1.816 + );
1.817 + i++;
1.818 + fifoSize++;
1.819 + }
1.820 +
1.821 +
1.822 + result.appendFormat(
1.823 + "%s-BufferQueue mMaxAcquiredBufferCount=%d, mDequeueBufferCannotBlock=%d, default-size=[%dx%d], "
1.824 + "default-format=%d, transform-hint=%02x, FIFO(%d)={%s}\n",
1.825 + prefix, mMaxAcquiredBufferCount, mDequeueBufferCannotBlock, mDefaultWidth,
1.826 + mDefaultHeight, mDefaultBufferFormat, mTransformHint,
1.827 + fifoSize, fifo.string());
1.828 +
1.829 + struct {
1.830 + const char * operator()(int state) const {
1.831 + switch (state) {
1.832 + case BufferSlot::DEQUEUED: return "DEQUEUED";
1.833 + case BufferSlot::QUEUED: return "QUEUED";
1.834 + case BufferSlot::FREE: return "FREE";
1.835 + case BufferSlot::ACQUIRED: return "ACQUIRED";
1.836 + default: return "Unknown";
1.837 + }
1.838 + }
1.839 + } stateName;
1.840 +
1.841 + // just trim the free buffers to not spam the dump
1.842 + int maxBufferCount = 0;
1.843 + for (int i=NUM_BUFFER_SLOTS-1 ; i>=0 ; i--) {
1.844 + const BufferSlot& slot(mSlots[i]);
1.845 + if ((slot.mBufferState != BufferSlot::FREE) || (slot.mGraphicBuffer != NULL)) {
1.846 + maxBufferCount = i+1;
1.847 + break;
1.848 + }
1.849 + }
1.850 +
1.851 + for (int i=0 ; i<maxBufferCount ; i++) {
1.852 + const BufferSlot& slot(mSlots[i]);
1.853 + const sp<GraphicBuffer>& buf(slot.mGraphicBuffer);
1.854 + result.appendFormat(
1.855 + "%s%s[%02d:%p] state=%-8s",
1.856 + prefix, (slot.mBufferState == BufferSlot::ACQUIRED)?">":" ", i, buf.get(),
1.857 + stateName(slot.mBufferState)
1.858 + );
1.859 +
1.860 + if (buf != NULL) {
1.861 + result.appendFormat(
1.862 + ", %p [%4ux%4u:%4u,%3X]",
1.863 + buf->handle, buf->width, buf->height, buf->stride,
1.864 + buf->format);
1.865 + }
1.866 + result.append("\n");
1.867 + }
1.868 +}
1.869 +
1.870 +void GonkBufferQueue::freeAllBuffersLocked()
1.871 +{
1.872 + ALOGW_IF(!mQueue.isEmpty(),
1.873 + "freeAllBuffersLocked called but mQueue is not empty");
1.874 + mQueue.clear();
1.875 + mBufferHasBeenQueued = false;
1.876 + for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
1.877 + mSlots[i].mGraphicBuffer = 0;
1.878 + if (mSlots[i].mTextureClient) {
1.879 + mSlots[i].mTextureClient->ClearRecycleCallback();
1.880 + // release TextureClient in ImageBridge thread
1.881 + nsProxyReleaseTask* task = new nsProxyReleaseTask(mSlots[i].mTextureClient);
1.882 + mSlots[i].mTextureClient = NULL;
1.883 + ImageBridgeChild::GetSingleton()->GetMessageLoop()->PostTask(FROM_HERE, task);
1.884 + }
1.885 + if (mSlots[i].mBufferState == BufferSlot::ACQUIRED) {
1.886 + mSlots[i].mNeedsCleanupOnRelease = true;
1.887 + }
1.888 + mSlots[i].mBufferState = BufferSlot::FREE;
1.889 + mSlots[i].mFrameNumber = 0;
1.890 + mSlots[i].mAcquireCalled = false;
1.891 + // destroy fence as GonkBufferQueue now takes ownership
1.892 + mSlots[i].mFence = Fence::NO_FENCE;
1.893 + }
1.894 +}
1.895 +
1.896 +status_t GonkBufferQueue::acquireBuffer(BufferItem *buffer, nsecs_t expectedPresent) {
1.897 + ATRACE_CALL();
1.898 + Mutex::Autolock _l(mMutex);
1.899 +
1.900 + // Check that the consumer doesn't currently have the maximum number of
1.901 + // buffers acquired. We allow the max buffer count to be exceeded by one
1.902 + // buffer, so that the consumer can successfully set up the newly acquired
1.903 + // buffer before releasing the old one.
1.904 + int numAcquiredBuffers = 0;
1.905 + for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
1.906 + if (mSlots[i].mBufferState == BufferSlot::ACQUIRED) {
1.907 + numAcquiredBuffers++;
1.908 + }
1.909 + }
1.910 + if (numAcquiredBuffers >= mMaxAcquiredBufferCount+1) {
1.911 + ST_LOGE("acquireBuffer: max acquired buffer count reached: %d (max=%d)",
1.912 + numAcquiredBuffers, mMaxAcquiredBufferCount);
1.913 + return INVALID_OPERATION;
1.914 + }
1.915 +
1.916 + // check if queue is empty
1.917 + // In asynchronous mode the list is guaranteed to be one buffer
1.918 + // deep, while in synchronous mode we use the oldest buffer.
1.919 + if (mQueue.empty()) {
1.920 + return NO_BUFFER_AVAILABLE;
1.921 + }
1.922 +
1.923 + Fifo::iterator front(mQueue.begin());
1.924 +
1.925 + // If expectedPresent is specified, we may not want to return a buffer yet.
1.926 + // If it's specified and there's more than one buffer queued, we may
1.927 + // want to drop a buffer.
1.928 + if (expectedPresent != 0) {
1.929 + const int MAX_REASONABLE_NSEC = 1000000000ULL; // 1 second
1.930 +
1.931 + // The "expectedPresent" argument indicates when the buffer is expected
1.932 + // to be presented on-screen. If the buffer's desired-present time
1.933 + // is earlier (less) than expectedPresent, meaning it'll be displayed
1.934 + // on time or possibly late if we show it ASAP, we acquire and return
1.935 + // it. If we don't want to display it until after the expectedPresent
1.936 + // time, we return PRESENT_LATER without acquiring it.
1.937 + //
1.938 + // To be safe, we don't defer acquisition if expectedPresent is
1.939 + // more than one second in the future beyond the desired present time
1.940 + // (i.e. we'd be holding the buffer for a long time).
1.941 + //
1.942 + // NOTE: code assumes monotonic time values from the system clock are
1.943 + // positive.
1.944 +
1.945 + // Start by checking to see if we can drop frames. We skip this check
1.946 + // if the timestamps are being auto-generated by Surface -- if the
1.947 + // app isn't generating timestamps explicitly, they probably don't
1.948 + // want frames to be discarded based on them.
1.949 + while (mQueue.size() > 1 && !mQueue[0].mIsAutoTimestamp) {
1.950 + // If entry[1] is timely, drop entry[0] (and repeat). We apply
1.951 + // an additional criteria here: we only drop the earlier buffer if
1.952 + // our desiredPresent falls within +/- 1 second of the expected
1.953 + // present. Otherwise, bogus desiredPresent times (e.g. 0 or
1.954 + // a small relative timestamp), which normally mean "ignore the
1.955 + // timestamp and acquire immediately", would cause us to drop
1.956 + // frames.
1.957 + //
1.958 + // We may want to add an additional criteria: don't drop the
1.959 + // earlier buffer if entry[1]'s fence hasn't signaled yet.
1.960 + //
1.961 + // (Vector front is [0], back is [size()-1])
1.962 + const BufferItem& bi(mQueue[1]);
1.963 + nsecs_t desiredPresent = bi.mTimestamp;
1.964 + if (desiredPresent < expectedPresent - MAX_REASONABLE_NSEC ||
1.965 + desiredPresent > expectedPresent) {
1.966 + // This buffer is set to display in the near future, or
1.967 + // desiredPresent is garbage. Either way we don't want to
1.968 + // drop the previous buffer just to get this on screen sooner.
1.969 + ST_LOGV("pts nodrop: des=%lld expect=%lld (%lld) now=%lld",
1.970 + desiredPresent, expectedPresent, desiredPresent - expectedPresent,
1.971 + systemTime(CLOCK_MONOTONIC));
1.972 + break;
1.973 + }
1.974 + ST_LOGV("pts drop: queue1des=%lld expect=%lld size=%d",
1.975 + desiredPresent, expectedPresent, mQueue.size());
1.976 + if (stillTracking(front)) {
1.977 + // front buffer is still in mSlots, so mark the slot as free
1.978 + mSlots[front->mBuf].mBufferState = BufferSlot::FREE;
1.979 + }
1.980 + mQueue.erase(front);
1.981 + front = mQueue.begin();
1.982 + }
1.983 +
1.984 + // See if the front buffer is due.
1.985 + nsecs_t desiredPresent = front->mTimestamp;
1.986 + if (desiredPresent > expectedPresent &&
1.987 + desiredPresent < expectedPresent + MAX_REASONABLE_NSEC) {
1.988 + ST_LOGV("pts defer: des=%lld expect=%lld (%lld) now=%lld",
1.989 + desiredPresent, expectedPresent, desiredPresent - expectedPresent,
1.990 + systemTime(CLOCK_MONOTONIC));
1.991 + return PRESENT_LATER;
1.992 + }
1.993 +
1.994 + ST_LOGV("pts accept: des=%lld expect=%lld (%lld) now=%lld",
1.995 + desiredPresent, expectedPresent, desiredPresent - expectedPresent,
1.996 + systemTime(CLOCK_MONOTONIC));
1.997 + }
1.998 +
1.999 + int buf = front->mBuf;
1.1000 + buffer->mGraphicBuffer = mSlots[buf].mGraphicBuffer;
1.1001 + buffer->mFrameNumber = mSlots[buf].mFrameNumber;
1.1002 + buffer->mBuf = buf;
1.1003 + buffer->mFence = mSlots[buf].mFence;
1.1004 + ATRACE_BUFFER_INDEX(buf);
1.1005 +
1.1006 + ST_LOGV("acquireBuffer: acquiring { slot=%d/%llu, buffer=%p }",
1.1007 + front->mBuf, front->mFrameNumber,
1.1008 + front->mGraphicBuffer->handle);
1.1009 + // if front buffer still being tracked update slot state
1.1010 + if (stillTracking(front)) {
1.1011 + mSlots[buf].mAcquireCalled = true;
1.1012 + mSlots[buf].mNeedsCleanupOnRelease = false;
1.1013 + mSlots[buf].mBufferState = BufferSlot::ACQUIRED;
1.1014 + mSlots[buf].mFence = Fence::NO_FENCE;
1.1015 + }
1.1016 +
1.1017 + // If the buffer has previously been acquired by the consumer, set
1.1018 + // mGraphicBuffer to NULL to avoid unnecessarily remapping this
1.1019 + // buffer on the consumer side.
1.1020 + //if (buffer->mAcquireCalled) {
1.1021 + // buffer->mGraphicBuffer = NULL;
1.1022 + //}
1.1023 +
1.1024 + mQueue.erase(front);
1.1025 + mDequeueCondition.broadcast();
1.1026 +
1.1027 + return NO_ERROR;
1.1028 +}
1.1029 +
1.1030 +status_t GonkBufferQueue::releaseBuffer(int buf, uint64_t frameNumber, const sp<Fence>& fence) {
1.1031 + ATRACE_CALL();
1.1032 +
1.1033 + if (buf == INVALID_BUFFER_SLOT || fence == NULL) {
1.1034 + return BAD_VALUE;
1.1035 + }
1.1036 +
1.1037 + Mutex::Autolock _l(mMutex);
1.1038 +
1.1039 + // If the frame number has changed because buffer has been reallocated,
1.1040 + // we can ignore this releaseBuffer for the old buffer.
1.1041 + //if (frameNumber != mSlots[buf].mFrameNumber) {
1.1042 + // return STALE_BUFFER_SLOT;
1.1043 + //}
1.1044 +
1.1045 +
1.1046 + // Internal state consistency checks:
1.1047 + // Make sure this buffers hasn't been queued while we were owning it (acquired)
1.1048 + Fifo::iterator front(mQueue.begin());
1.1049 + Fifo::const_iterator const end(mQueue.end());
1.1050 + while (front != end) {
1.1051 + if (front->mBuf == buf) {
1.1052 + LOG_ALWAYS_FATAL("[%s] received new buffer(#%lld) on slot #%d that has not yet been "
1.1053 + "acquired", mConsumerName.string(), frameNumber, buf);
1.1054 + break; // never reached
1.1055 + }
1.1056 + front++;
1.1057 + }
1.1058 +
1.1059 + // The buffer can now only be released if its in the acquired state
1.1060 + if (mSlots[buf].mBufferState == BufferSlot::ACQUIRED) {
1.1061 + mSlots[buf].mFence = fence;
1.1062 + mSlots[buf].mBufferState = BufferSlot::FREE;
1.1063 + } else if (mSlots[buf].mNeedsCleanupOnRelease) {
1.1064 + ST_LOGV("releasing a stale buf %d its state was %d", buf, mSlots[buf].mBufferState);
1.1065 + mSlots[buf].mNeedsCleanupOnRelease = false;
1.1066 + return STALE_BUFFER_SLOT;
1.1067 + } else {
1.1068 + ST_LOGE("attempted to release buf %d but its state was %d", buf, mSlots[buf].mBufferState);
1.1069 + return -EINVAL;
1.1070 + }
1.1071 +
1.1072 + mDequeueCondition.broadcast();
1.1073 + return NO_ERROR;
1.1074 +}
1.1075 +
1.1076 +status_t GonkBufferQueue::consumerConnect(const sp<IConsumerListener>& consumerListener,
1.1077 + bool controlledByApp) {
1.1078 + ST_LOGV("consumerConnect controlledByApp=%s",
1.1079 + controlledByApp ? "true" : "false");
1.1080 + Mutex::Autolock lock(mMutex);
1.1081 +
1.1082 + if (mAbandoned) {
1.1083 + ST_LOGE("consumerConnect: GonkBufferQueue has been abandoned!");
1.1084 + return NO_INIT;
1.1085 + }
1.1086 + if (consumerListener == NULL) {
1.1087 + ST_LOGE("consumerConnect: consumerListener may not be NULL");
1.1088 + return BAD_VALUE;
1.1089 + }
1.1090 +
1.1091 + mConsumerListener = consumerListener;
1.1092 + mConsumerControlledByApp = controlledByApp;
1.1093 +
1.1094 + return NO_ERROR;
1.1095 +}
1.1096 +
1.1097 +status_t GonkBufferQueue::consumerDisconnect() {
1.1098 + ST_LOGV("consumerDisconnect");
1.1099 + Mutex::Autolock lock(mMutex);
1.1100 +
1.1101 + if (mConsumerListener == NULL) {
1.1102 + ST_LOGE("consumerDisconnect: No consumer is connected!");
1.1103 + return -EINVAL;
1.1104 + }
1.1105 +
1.1106 + mAbandoned = true;
1.1107 + mConsumerListener = NULL;
1.1108 + mQueue.clear();
1.1109 + freeAllBuffersLocked();
1.1110 + mDequeueCondition.broadcast();
1.1111 + return NO_ERROR;
1.1112 +}
1.1113 +
1.1114 +status_t GonkBufferQueue::getReleasedBuffers(uint32_t* slotMask) {
1.1115 + ST_LOGV("getReleasedBuffers");
1.1116 + Mutex::Autolock lock(mMutex);
1.1117 +
1.1118 + if (mAbandoned) {
1.1119 + ST_LOGE("getReleasedBuffers: GonkBufferQueue has been abandoned!");
1.1120 + return NO_INIT;
1.1121 + }
1.1122 +
1.1123 + uint32_t mask = 0;
1.1124 + for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
1.1125 + if (!mSlots[i].mAcquireCalled) {
1.1126 + mask |= 1 << i;
1.1127 + }
1.1128 + }
1.1129 +
1.1130 + // Remove buffers in flight (on the queue) from the mask where acquire has
1.1131 + // been called, as the consumer will not receive the buffer address, so
1.1132 + // it should not free these slots.
1.1133 + Fifo::iterator front(mQueue.begin());
1.1134 + while (front != mQueue.end()) {
1.1135 + if (front->mAcquireCalled)
1.1136 + mask &= ~(1 << front->mBuf);
1.1137 + front++;
1.1138 + }
1.1139 +
1.1140 + *slotMask = mask;
1.1141 +
1.1142 + ST_LOGV("getReleasedBuffers: returning mask %#x", mask);
1.1143 + return NO_ERROR;
1.1144 +}
1.1145 +
1.1146 +status_t GonkBufferQueue::setDefaultBufferSize(uint32_t w, uint32_t h) {
1.1147 + ST_LOGV("setDefaultBufferSize: w=%d, h=%d", w, h);
1.1148 + if (!w || !h) {
1.1149 + ST_LOGE("setDefaultBufferSize: dimensions cannot be 0 (w=%d, h=%d)",
1.1150 + w, h);
1.1151 + return BAD_VALUE;
1.1152 + }
1.1153 +
1.1154 + Mutex::Autolock lock(mMutex);
1.1155 + mDefaultWidth = w;
1.1156 + mDefaultHeight = h;
1.1157 + return NO_ERROR;
1.1158 +}
1.1159 +
1.1160 +status_t GonkBufferQueue::setDefaultMaxBufferCount(int bufferCount) {
1.1161 + ATRACE_CALL();
1.1162 + Mutex::Autolock lock(mMutex);
1.1163 + return setDefaultMaxBufferCountLocked(bufferCount);
1.1164 +}
1.1165 +
1.1166 +status_t GonkBufferQueue::disableAsyncBuffer() {
1.1167 + ATRACE_CALL();
1.1168 + Mutex::Autolock lock(mMutex);
1.1169 + if (mConsumerListener != NULL) {
1.1170 + ST_LOGE("disableAsyncBuffer: consumer already connected!");
1.1171 + return INVALID_OPERATION;
1.1172 + }
1.1173 + mUseAsyncBuffer = false;
1.1174 + return NO_ERROR;
1.1175 +}
1.1176 +
1.1177 +status_t GonkBufferQueue::setMaxAcquiredBufferCount(int maxAcquiredBuffers) {
1.1178 + ATRACE_CALL();
1.1179 + Mutex::Autolock lock(mMutex);
1.1180 + if (maxAcquiredBuffers < 1 || maxAcquiredBuffers > MAX_MAX_ACQUIRED_BUFFERS) {
1.1181 + ST_LOGE("setMaxAcquiredBufferCount: invalid count specified: %d",
1.1182 + maxAcquiredBuffers);
1.1183 + return BAD_VALUE;
1.1184 + }
1.1185 + if (mConnectedApi != NO_CONNECTED_API) {
1.1186 + return INVALID_OPERATION;
1.1187 + }
1.1188 + mMaxAcquiredBufferCount = maxAcquiredBuffers;
1.1189 + return NO_ERROR;
1.1190 +}
1.1191 +
1.1192 +int GonkBufferQueue::getMinUndequeuedBufferCount(bool async) const {
1.1193 + // if dequeueBuffer is allowed to error out, we don't have to
1.1194 + // add an extra buffer.
1.1195 + if (!mUseAsyncBuffer)
1.1196 + return mMaxAcquiredBufferCount;
1.1197 +
1.1198 + // we're in async mode, or we want to prevent the app to
1.1199 + // deadlock itself, we throw-in an extra buffer to guarantee it.
1.1200 + if (mDequeueBufferCannotBlock || async)
1.1201 + return mMaxAcquiredBufferCount + 1;
1.1202 +
1.1203 + return mMaxAcquiredBufferCount;
1.1204 +}
1.1205 +
1.1206 +int GonkBufferQueue::getMinMaxBufferCountLocked(bool async) const {
1.1207 + return getMinUndequeuedBufferCount(async) + 1;
1.1208 +}
1.1209 +
1.1210 +int GonkBufferQueue::getMaxBufferCountLocked(bool async) const {
1.1211 + int minMaxBufferCount = getMinMaxBufferCountLocked(async);
1.1212 +
1.1213 + int maxBufferCount = mDefaultMaxBufferCount;
1.1214 + if (maxBufferCount < minMaxBufferCount) {
1.1215 + maxBufferCount = minMaxBufferCount;
1.1216 + }
1.1217 + if (mOverrideMaxBufferCount != 0) {
1.1218 + assert(mOverrideMaxBufferCount >= minMaxBufferCount);
1.1219 + maxBufferCount = mOverrideMaxBufferCount;
1.1220 + }
1.1221 +
1.1222 + // Any buffers that are dequeued by the producer or sitting in the queue
1.1223 + // waiting to be consumed need to have their slots preserved. Such
1.1224 + // buffers will temporarily keep the max buffer count up until the slots
1.1225 + // no longer need to be preserved.
1.1226 + for (int i = maxBufferCount; i < NUM_BUFFER_SLOTS; i++) {
1.1227 + BufferSlot::BufferState state = mSlots[i].mBufferState;
1.1228 + if (state == BufferSlot::QUEUED || state == BufferSlot::DEQUEUED) {
1.1229 + maxBufferCount = i + 1;
1.1230 + }
1.1231 + }
1.1232 +
1.1233 + return maxBufferCount;
1.1234 +}
1.1235 +
1.1236 +bool GonkBufferQueue::stillTracking(const BufferItem *item) const {
1.1237 + const BufferSlot &slot = mSlots[item->mBuf];
1.1238 +
1.1239 + ST_LOGV("stillTracking?: item: { slot=%d/%llu, buffer=%p }, "
1.1240 + "slot: { slot=%d/%llu, buffer=%p }",
1.1241 + item->mBuf, item->mFrameNumber,
1.1242 + (item->mGraphicBuffer.get() ? item->mGraphicBuffer->handle : 0),
1.1243 + item->mBuf, slot.mFrameNumber,
1.1244 + (slot.mGraphicBuffer.get() ? slot.mGraphicBuffer->handle : 0));
1.1245 +
1.1246 + // Compare item with its original buffer slot. We can check the slot
1.1247 + // as the buffer would not be moved to a different slot by the producer.
1.1248 + return (slot.mGraphicBuffer != NULL &&
1.1249 + item->mGraphicBuffer->handle == slot.mGraphicBuffer->handle);
1.1250 +}
1.1251 +
1.1252 +GonkBufferQueue::ProxyConsumerListener::ProxyConsumerListener(
1.1253 + const wp<ConsumerListener>& consumerListener):
1.1254 + mConsumerListener(consumerListener) {}
1.1255 +
1.1256 +GonkBufferQueue::ProxyConsumerListener::~ProxyConsumerListener() {}
1.1257 +
1.1258 +void GonkBufferQueue::ProxyConsumerListener::onFrameAvailable() {
1.1259 + sp<ConsumerListener> listener(mConsumerListener.promote());
1.1260 + if (listener != NULL) {
1.1261 + listener->onFrameAvailable();
1.1262 + }
1.1263 +}
1.1264 +
1.1265 +void GonkBufferQueue::ProxyConsumerListener::onBuffersReleased() {
1.1266 + sp<ConsumerListener> listener(mConsumerListener.promote());
1.1267 + if (listener != NULL) {
1.1268 + listener->onBuffersReleased();
1.1269 + }
1.1270 +}
1.1271 +
1.1272 +}; // namespace android
