Refactored ISurfaceTexture calls from SurfaceTexture into BufferQueue.
Change-Id: I514f6b802f6b49c9ae27bed37bf0b9d23da03c9a
diff --git a/libs/gui/SurfaceTexture.cpp b/libs/gui/SurfaceTexture.cpp
index 3abe84a..be1bcd1 100644
--- a/libs/gui/SurfaceTexture.cpp
+++ b/libs/gui/SurfaceTexture.cpp
@@ -38,19 +38,6 @@
#include <utils/Log.h>
#include <utils/String8.h>
-// This compile option causes SurfaceTexture to return the buffer that is currently
-// attached to the GL texture from dequeueBuffer when no other buffers are
-// available. It requires the drivers (Gralloc, GL, OMX IL, and Camera) to do
-// implicit cross-process synchronization to prevent the buffer from being
-// written to before the buffer has (a) been detached from the GL texture and
-// (b) all GL reads from the buffer have completed.
-#ifdef ALLOW_DEQUEUE_CURRENT_BUFFER
-#define FLAG_ALLOW_DEQUEUE_CURRENT_BUFFER true
-#warning "ALLOW_DEQUEUE_CURRENT_BUFFER enabled"
-#else
-#define FLAG_ALLOW_DEQUEUE_CURRENT_BUFFER false
-#endif
-
// This compile option makes SurfaceTexture use the EGL_KHR_fence_sync extension
// to synchronize access to the buffers. It will cause dequeueBuffer to stall,
// waiting for the GL reads for the buffer being dequeued to complete before
@@ -110,44 +97,22 @@
static void mtxMul(float out[16], const float a[16], const float b[16]);
-// Get an ID that's unique within this process.
-static int32_t createProcessUniqueId() {
- static volatile int32_t globalCounter = 0;
- return android_atomic_inc(&globalCounter);
-}
SurfaceTexture::SurfaceTexture(GLuint tex, bool allowSynchronousMode,
GLenum texTarget, bool useFenceSync) :
- mDefaultWidth(1),
- mDefaultHeight(1),
- mPixelFormat(PIXEL_FORMAT_RGBA_8888),
- mBufferCount(MIN_ASYNC_BUFFER_SLOTS),
- mClientBufferCount(0),
- mServerBufferCount(MIN_ASYNC_BUFFER_SLOTS),
- mCurrentTexture(INVALID_BUFFER_SLOT),
+ BufferQueue(allowSynchronousMode),
mCurrentTransform(0),
mCurrentTimestamp(0),
- mNextTransform(0),
- mNextScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE),
mTexName(tex),
- mSynchronousMode(false),
- mAllowSynchronousMode(allowSynchronousMode),
- mConnectedApi(NO_CONNECTED_API),
- mAbandoned(false),
#ifdef USE_FENCE_SYNC
mUseFenceSync(useFenceSync),
#else
mUseFenceSync(false),
#endif
- mTexTarget(texTarget),
- mFrameCounter(0) {
- // Choose a name using the PID and a process-unique ID.
- mName = String8::format("unnamed-%d-%d", getpid(), createProcessUniqueId());
+ mTexTarget(texTarget)
+{
ST_LOGV("SurfaceTexture");
- sp<ISurfaceComposer> composer(ComposerService::getComposerService());
- mGraphicBufferAlloc = composer->createGraphicBufferAlloc();
- mNextCrop.makeInvalid();
memcpy(mCurrentTransformMatrix, mtxIdentity,
sizeof(mCurrentTransformMatrix));
}
@@ -157,91 +122,11 @@
freeAllBuffersLocked();
}
-status_t SurfaceTexture::setBufferCountServerLocked(int bufferCount) {
- if (bufferCount > NUM_BUFFER_SLOTS)
- return BAD_VALUE;
-
- // special-case, nothing to do
- if (bufferCount == mBufferCount)
- return OK;
-
- if (!mClientBufferCount &&
- bufferCount >= mBufferCount) {
- // easy, we just have more buffers
- mBufferCount = bufferCount;
- mServerBufferCount = bufferCount;
- mDequeueCondition.signal();
- } else {
- // we're here because we're either
- // - reducing the number of available buffers
- // - or there is a client-buffer-count in effect
-
- // less than 2 buffers is never allowed
- if (bufferCount < 2)
- return BAD_VALUE;
-
- // when there is non client-buffer-count in effect, the client is not
- // allowed to dequeue more than one buffer at a time,
- // so the next time they dequeue a buffer, we know that they don't
- // own one. the actual resizing will happen during the next
- // dequeueBuffer.
-
- mServerBufferCount = bufferCount;
- }
- return OK;
-}
-
status_t SurfaceTexture::setBufferCountServer(int bufferCount) {
Mutex::Autolock lock(mMutex);
return setBufferCountServerLocked(bufferCount);
}
-status_t SurfaceTexture::setBufferCount(int bufferCount) {
- ST_LOGV("setBufferCount: count=%d", bufferCount);
- Mutex::Autolock lock(mMutex);
-
- if (mAbandoned) {
- ST_LOGE("setBufferCount: SurfaceTexture has been abandoned!");
- return NO_INIT;
- }
- if (bufferCount > NUM_BUFFER_SLOTS) {
- ST_LOGE("setBufferCount: bufferCount larger than slots available");
- return BAD_VALUE;
- }
-
- // Error out if the user has dequeued buffers
- for (int i=0 ; i<mBufferCount ; i++) {
- if (mSlots[i].mBufferState == BufferSlot::DEQUEUED) {
- ST_LOGE("setBufferCount: client owns some buffers");
- return -EINVAL;
- }
- }
-
- const int minBufferSlots = mSynchronousMode ?
- MIN_SYNC_BUFFER_SLOTS : MIN_ASYNC_BUFFER_SLOTS;
- if (bufferCount == 0) {
- mClientBufferCount = 0;
- bufferCount = (mServerBufferCount >= minBufferSlots) ?
- mServerBufferCount : minBufferSlots;
- return setBufferCountServerLocked(bufferCount);
- }
-
- if (bufferCount < minBufferSlots) {
- ST_LOGE("setBufferCount: requested buffer count (%d) is less than "
- "minimum (%d)", bufferCount, minBufferSlots);
- return BAD_VALUE;
- }
-
- // here we're guaranteed that the client doesn't have dequeued buffers
- // and will release all of its buffer references.
- freeAllBuffersLocked();
- mBufferCount = bufferCount;
- mClientBufferCount = bufferCount;
- mCurrentTexture = INVALID_BUFFER_SLOT;
- mQueue.clear();
- mDequeueCondition.signal();
- return OK;
-}
status_t SurfaceTexture::setDefaultBufferSize(uint32_t w, uint32_t h)
{
@@ -258,496 +143,6 @@
return OK;
}
-status_t SurfaceTexture::requestBuffer(int slot, sp<GraphicBuffer>* buf) {
- ST_LOGV("requestBuffer: slot=%d", slot);
- Mutex::Autolock lock(mMutex);
- if (mAbandoned) {
- ST_LOGE("requestBuffer: SurfaceTexture has been abandoned!");
- return NO_INIT;
- }
- if (slot < 0 || mBufferCount <= slot) {
- ST_LOGE("requestBuffer: slot index out of range [0, %d]: %d",
- mBufferCount, slot);
- return BAD_VALUE;
- }
- mSlots[slot].mRequestBufferCalled = true;
- *buf = mSlots[slot].mGraphicBuffer;
- return NO_ERROR;
-}
-
-status_t SurfaceTexture::dequeueBuffer(int *outBuf, uint32_t w, uint32_t h,
- uint32_t format, uint32_t usage) {
- ST_LOGV("dequeueBuffer: w=%d h=%d fmt=%#x usage=%#x", w, h, format, usage);
-
- if ((w && !h) || (!w && h)) {
- ST_LOGE("dequeueBuffer: invalid size: w=%u, h=%u", w, h);
- return BAD_VALUE;
- }
-
- status_t returnFlags(OK);
- EGLDisplay dpy = EGL_NO_DISPLAY;
- EGLSyncKHR fence = EGL_NO_SYNC_KHR;
-
- { // Scope for the lock
- Mutex::Autolock lock(mMutex);
-
- int found = -1;
- int foundSync = -1;
- int dequeuedCount = 0;
- bool tryAgain = true;
- while (tryAgain) {
- if (mAbandoned) {
- ST_LOGE("dequeueBuffer: SurfaceTexture has been abandoned!");
- return NO_INIT;
- }
-
- // We need to wait for the FIFO to drain if the number of buffer
- // needs to change.
- //
- // The condition "number of buffers needs to change" is true if
- // - the client doesn't care about how many buffers there are
- // - AND the actual number of buffer is different from what was
- // set in the last setBufferCountServer()
- // - OR -
- // setBufferCountServer() was set to a value incompatible with
- // the synchronization mode (for instance because the sync mode
- // changed since)
- //
- // As long as this condition is true AND the FIFO is not empty, we
- // wait on mDequeueCondition.
-
- const int minBufferCountNeeded = mSynchronousMode ?
- MIN_SYNC_BUFFER_SLOTS : MIN_ASYNC_BUFFER_SLOTS;
-
- const bool numberOfBuffersNeedsToChange = !mClientBufferCount &&
- ((mServerBufferCount != mBufferCount) ||
- (mServerBufferCount < minBufferCountNeeded));
-
- if (!mQueue.isEmpty() && numberOfBuffersNeedsToChange) {
- // wait for the FIFO to drain
- mDequeueCondition.wait(mMutex);
- // NOTE: we continue here because we need to reevaluate our
- // whole state (eg: we could be abandoned or disconnected)
- continue;
- }
-
- if (numberOfBuffersNeedsToChange) {
- // here we're guaranteed that mQueue is empty
- freeAllBuffersLocked();
- mBufferCount = mServerBufferCount;
- if (mBufferCount < minBufferCountNeeded)
- mBufferCount = minBufferCountNeeded;
- mCurrentTexture = INVALID_BUFFER_SLOT;
- returnFlags |= ISurfaceTexture::RELEASE_ALL_BUFFERS;
- }
-
- // look for a free buffer to give to the client
- found = INVALID_BUFFER_SLOT;
- foundSync = INVALID_BUFFER_SLOT;
- dequeuedCount = 0;
- for (int i = 0; i < mBufferCount; i++) {
- const int state = mSlots[i].mBufferState;
- if (state == BufferSlot::DEQUEUED) {
- dequeuedCount++;
- }
-
- // if buffer is FREE it CANNOT be current
- ALOGW_IF((state == BufferSlot::FREE) && (mCurrentTexture==i),
- "dequeueBuffer: buffer %d is both FREE and current!",
- i);
-
- if (FLAG_ALLOW_DEQUEUE_CURRENT_BUFFER) {
- if (state == BufferSlot::FREE || i == mCurrentTexture) {
- foundSync = i;
- if (i != mCurrentTexture) {
- found = i;
- break;
- }
- }
- } else {
- if (state == BufferSlot::FREE) {
- /* We return the oldest of the free buffers to avoid
- * stalling the producer if possible. This is because
- * the consumer may still have pending reads of the
- * buffers in flight.
- */
- bool isOlder = mSlots[i].mFrameNumber <
- mSlots[found].mFrameNumber;
- if (found < 0 || isOlder) {
- foundSync = i;
- found = i;
- }
- }
- }
- }
-
- // clients are not allowed to dequeue more than one buffer
- // if they didn't set a buffer count.
- if (!mClientBufferCount && dequeuedCount) {
- ST_LOGE("dequeueBuffer: can't dequeue multiple buffers without "
- "setting the buffer count");
- return -EINVAL;
- }
-
- // See whether a buffer has been queued since the last
- // setBufferCount so we know whether to perform the
- // MIN_UNDEQUEUED_BUFFERS check below.
- bool bufferHasBeenQueued = mCurrentTexture != INVALID_BUFFER_SLOT;
- if (bufferHasBeenQueued) {
- // make sure the client is not trying to dequeue more buffers
- // than allowed.
- const int avail = mBufferCount - (dequeuedCount+1);
- if (avail < (MIN_UNDEQUEUED_BUFFERS-int(mSynchronousMode))) {
- ST_LOGE("dequeueBuffer: MIN_UNDEQUEUED_BUFFERS=%d exceeded "
- "(dequeued=%d)",
- MIN_UNDEQUEUED_BUFFERS-int(mSynchronousMode),
- dequeuedCount);
- return -EBUSY;
- }
- }
-
- // we're in synchronous mode and didn't find a buffer, we need to
- // wait for some buffers to be consumed
- tryAgain = mSynchronousMode && (foundSync == INVALID_BUFFER_SLOT);
- if (tryAgain) {
- mDequeueCondition.wait(mMutex);
- }
- }
-
- if (mSynchronousMode && found == INVALID_BUFFER_SLOT) {
- // foundSync guaranteed to be != INVALID_BUFFER_SLOT
- found = foundSync;
- }
-
- if (found == INVALID_BUFFER_SLOT) {
- // This should not happen.
- ST_LOGE("dequeueBuffer: no available buffer slots");
- return -EBUSY;
- }
-
- const int buf = found;
- *outBuf = found;
-
- const bool useDefaultSize = !w && !h;
- if (useDefaultSize) {
- // use the default size
- w = mDefaultWidth;
- h = mDefaultHeight;
- }
-
- const bool updateFormat = (format != 0);
- if (!updateFormat) {
- // keep the current (or default) format
- format = mPixelFormat;
- }
-
- // buffer is now in DEQUEUED (but can also be current at the same time,
- // if we're in synchronous mode)
- mSlots[buf].mBufferState = BufferSlot::DEQUEUED;
-
- const sp<GraphicBuffer>& buffer(mSlots[buf].mGraphicBuffer);
- if ((buffer == NULL) ||
- (uint32_t(buffer->width) != w) ||
- (uint32_t(buffer->height) != h) ||
- (uint32_t(buffer->format) != format) ||
- ((uint32_t(buffer->usage) & usage) != usage))
- {
- usage |= GraphicBuffer::USAGE_HW_TEXTURE;
- status_t error;
- sp<GraphicBuffer> graphicBuffer(
- mGraphicBufferAlloc->createGraphicBuffer(
- w, h, format, usage, &error));
- if (graphicBuffer == 0) {
- ST_LOGE("dequeueBuffer: SurfaceComposer::createGraphicBuffer "
- "failed");
- return error;
- }
- if (updateFormat) {
- mPixelFormat = format;
- }
- mSlots[buf].mGraphicBuffer = graphicBuffer;
- mSlots[buf].mRequestBufferCalled = false;
- mSlots[buf].mFence = EGL_NO_SYNC_KHR;
- if (mSlots[buf].mEglImage != EGL_NO_IMAGE_KHR) {
- eglDestroyImageKHR(mSlots[buf].mEglDisplay,
- mSlots[buf].mEglImage);
- mSlots[buf].mEglImage = EGL_NO_IMAGE_KHR;
- mSlots[buf].mEglDisplay = EGL_NO_DISPLAY;
- }
- if (mCurrentTexture == buf) {
- // The current texture no longer references the buffer in this slot
- // since we just allocated a new buffer.
- mCurrentTexture = INVALID_BUFFER_SLOT;
- }
- returnFlags |= ISurfaceTexture::BUFFER_NEEDS_REALLOCATION;
- }
-
- dpy = mSlots[buf].mEglDisplay;
- fence = mSlots[buf].mFence;
- mSlots[buf].mFence = EGL_NO_SYNC_KHR;
- }
-
- if (fence != EGL_NO_SYNC_KHR) {
- EGLint result = eglClientWaitSyncKHR(dpy, fence, 0, 1000000000);
- // If something goes wrong, log the error, but return the buffer without
- // synchronizing access to it. It's too late at this point to abort the
- // dequeue operation.
- if (result == EGL_FALSE) {
- ALOGE("dequeueBuffer: error waiting for fence: %#x", eglGetError());
- } else if (result == EGL_TIMEOUT_EXPIRED_KHR) {
- ALOGE("dequeueBuffer: timeout waiting for fence");
- }
- eglDestroySyncKHR(dpy, fence);
- }
-
- ST_LOGV("dequeueBuffer: returning slot=%d buf=%p flags=%#x", *outBuf,
- mSlots[*outBuf].mGraphicBuffer->handle, returnFlags);
-
- return returnFlags;
-}
-
-status_t SurfaceTexture::setSynchronousMode(bool enabled) {
- ST_LOGV("setSynchronousMode: enabled=%d", enabled);
- Mutex::Autolock lock(mMutex);
-
- if (mAbandoned) {
- ST_LOGE("setSynchronousMode: SurfaceTexture has been abandoned!");
- return NO_INIT;
- }
-
- status_t err = OK;
- if (!mAllowSynchronousMode && enabled)
- return err;
-
- if (!enabled) {
- // going to asynchronous mode, drain the queue
- err = drainQueueLocked();
- if (err != NO_ERROR)
- return err;
- }
-
- if (mSynchronousMode != enabled) {
- // - if we're going to asynchronous mode, the queue is guaranteed to be
- // empty here
- // - if the client set the number of buffers, we're guaranteed that
- // we have at least 3 (because we don't allow less)
- mSynchronousMode = enabled;
- mDequeueCondition.signal();
- }
- return err;
-}
-
-status_t SurfaceTexture::queueBuffer(int buf, int64_t timestamp,
- uint32_t* outWidth, uint32_t* outHeight, uint32_t* outTransform) {
- ST_LOGV("queueBuffer: slot=%d time=%lld", buf, timestamp);
-
- sp<FrameAvailableListener> listener;
-
- { // scope for the lock
- Mutex::Autolock lock(mMutex);
- if (mAbandoned) {
- ST_LOGE("queueBuffer: SurfaceTexture has been abandoned!");
- return NO_INIT;
- }
- if (buf < 0 || buf >= mBufferCount) {
- ST_LOGE("queueBuffer: slot index out of range [0, %d]: %d",
- mBufferCount, buf);
- return -EINVAL;
- } else if (mSlots[buf].mBufferState != BufferSlot::DEQUEUED) {
- ST_LOGE("queueBuffer: slot %d is not owned by the client "
- "(state=%d)", buf, mSlots[buf].mBufferState);
- return -EINVAL;
- } else if (buf == mCurrentTexture) {
- ST_LOGE("queueBuffer: slot %d is current!", buf);
- return -EINVAL;
- } else if (!mSlots[buf].mRequestBufferCalled) {
- ST_LOGE("queueBuffer: slot %d was enqueued without requesting a "
- "buffer", buf);
- return -EINVAL;
- }
-
- if (mSynchronousMode) {
- // In synchronous mode we queue all buffers in a FIFO.
- mQueue.push_back(buf);
-
- // Synchronous mode always signals that an additional frame should
- // be consumed.
- listener = mFrameAvailableListener;
- } else {
- // In asynchronous mode we only keep the most recent buffer.
- if (mQueue.empty()) {
- mQueue.push_back(buf);
-
- // Asynchronous mode only signals that a frame should be
- // consumed if no previous frame was pending. If a frame were
- // pending then the consumer would have already been notified.
- listener = mFrameAvailableListener;
- } else {
- Fifo::iterator front(mQueue.begin());
- // buffer currently queued is freed
- mSlots[*front].mBufferState = BufferSlot::FREE;
- // and we record the new buffer index in the queued list
- *front = buf;
- }
- }
-
- mSlots[buf].mBufferState = BufferSlot::QUEUED;
- mSlots[buf].mCrop = mNextCrop;
- mSlots[buf].mTransform = mNextTransform;
- mSlots[buf].mScalingMode = mNextScalingMode;
- mSlots[buf].mTimestamp = timestamp;
- mFrameCounter++;
- mSlots[buf].mFrameNumber = mFrameCounter;
-
- mDequeueCondition.signal();
-
- *outWidth = mDefaultWidth;
- *outHeight = mDefaultHeight;
- *outTransform = 0;
- } // scope for the lock
-
- // call back without lock held
- if (listener != 0) {
- listener->onFrameAvailable();
- }
- return OK;
-}
-
-void SurfaceTexture::cancelBuffer(int buf) {
- ST_LOGV("cancelBuffer: slot=%d", buf);
- Mutex::Autolock lock(mMutex);
-
- if (mAbandoned) {
- ST_LOGW("cancelBuffer: SurfaceTexture has been abandoned!");
- return;
- }
-
- if (buf < 0 || buf >= mBufferCount) {
- ST_LOGE("cancelBuffer: slot index out of range [0, %d]: %d",
- mBufferCount, buf);
- return;
- } else if (mSlots[buf].mBufferState != BufferSlot::DEQUEUED) {
- ST_LOGE("cancelBuffer: slot %d is not owned by the client (state=%d)",
- buf, mSlots[buf].mBufferState);
- return;
- }
- mSlots[buf].mBufferState = BufferSlot::FREE;
- mSlots[buf].mFrameNumber = 0;
- mDequeueCondition.signal();
-}
-
-status_t SurfaceTexture::setCrop(const Rect& crop) {
- ST_LOGV("setCrop: crop=[%d,%d,%d,%d]", crop.left, crop.top, crop.right,
- crop.bottom);
-
- Mutex::Autolock lock(mMutex);
- if (mAbandoned) {
- ST_LOGE("setCrop: SurfaceTexture has been abandoned!");
- return NO_INIT;
- }
- mNextCrop = crop;
- return OK;
-}
-
-status_t SurfaceTexture::setTransform(uint32_t transform) {
- ST_LOGV("setTransform: xform=%#x", transform);
- Mutex::Autolock lock(mMutex);
- if (mAbandoned) {
- ST_LOGE("setTransform: SurfaceTexture has been abandoned!");
- return NO_INIT;
- }
- mNextTransform = transform;
- return OK;
-}
-
-status_t SurfaceTexture::connect(int api,
- uint32_t* outWidth, uint32_t* outHeight, uint32_t* outTransform) {
- ST_LOGV("connect: api=%d", api);
- Mutex::Autolock lock(mMutex);
-
- if (mAbandoned) {
- ST_LOGE("connect: SurfaceTexture has been abandoned!");
- return NO_INIT;
- }
-
- int err = NO_ERROR;
- switch (api) {
- case NATIVE_WINDOW_API_EGL:
- case NATIVE_WINDOW_API_CPU:
- case NATIVE_WINDOW_API_MEDIA:
- case NATIVE_WINDOW_API_CAMERA:
- if (mConnectedApi != NO_CONNECTED_API) {
- ST_LOGE("connect: already connected (cur=%d, req=%d)",
- mConnectedApi, api);
- err = -EINVAL;
- } else {
- mConnectedApi = api;
- *outWidth = mDefaultWidth;
- *outHeight = mDefaultHeight;
- *outTransform = 0;
- }
- break;
- default:
- err = -EINVAL;
- break;
- }
- return err;
-}
-
-status_t SurfaceTexture::disconnect(int api) {
- ST_LOGV("disconnect: api=%d", api);
- Mutex::Autolock lock(mMutex);
-
- if (mAbandoned) {
- // it is not really an error to disconnect after the surface
- // has been abandoned, it should just be a no-op.
- return NO_ERROR;
- }
-
- int err = NO_ERROR;
- switch (api) {
- case NATIVE_WINDOW_API_EGL:
- case NATIVE_WINDOW_API_CPU:
- case NATIVE_WINDOW_API_MEDIA:
- case NATIVE_WINDOW_API_CAMERA:
- if (mConnectedApi == api) {
- drainQueueAndFreeBuffersLocked();
- mConnectedApi = NO_CONNECTED_API;
- mNextCrop.makeInvalid();
- mNextScalingMode = NATIVE_WINDOW_SCALING_MODE_FREEZE;
- mNextTransform = 0;
- mDequeueCondition.signal();
- } else {
- ST_LOGE("disconnect: connected to another api (cur=%d, req=%d)",
- mConnectedApi, api);
- err = -EINVAL;
- }
- break;
- default:
- ST_LOGE("disconnect: unknown API %d", api);
- err = -EINVAL;
- break;
- }
- return err;
-}
-
-status_t SurfaceTexture::setScalingMode(int mode) {
- ST_LOGV("setScalingMode: mode=%d", mode);
-
- switch (mode) {
- case NATIVE_WINDOW_SCALING_MODE_FREEZE:
- case NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW:
- break;
- default:
- ST_LOGE("unknown scaling mode: %d", mode);
- return BAD_VALUE;
- }
-
- Mutex::Autolock lock(mMutex);
- mNextScalingMode = mode;
- return OK;
-}
-
status_t SurfaceTexture::updateTexImage() {
ST_LOGV("updateTexImage");
Mutex::Autolock lock(mMutex);
@@ -980,69 +375,6 @@
mFrameAvailableListener = listener;
}
-void SurfaceTexture::freeBufferLocked(int i) {
- mSlots[i].mGraphicBuffer = 0;
- mSlots[i].mBufferState = BufferSlot::FREE;
- mSlots[i].mFrameNumber = 0;
- if (mSlots[i].mEglImage != EGL_NO_IMAGE_KHR) {
- eglDestroyImageKHR(mSlots[i].mEglDisplay, mSlots[i].mEglImage);
- mSlots[i].mEglImage = EGL_NO_IMAGE_KHR;
- mSlots[i].mEglDisplay = EGL_NO_DISPLAY;
- }
-}
-
-void SurfaceTexture::freeAllBuffersLocked() {
- ALOGW_IF(!mQueue.isEmpty(),
- "freeAllBuffersLocked called but mQueue is not empty");
- mCurrentTexture = INVALID_BUFFER_SLOT;
- for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
- freeBufferLocked(i);
- }
-}
-
-void SurfaceTexture::freeAllBuffersExceptHeadLocked() {
- ALOGW_IF(!mQueue.isEmpty(),
- "freeAllBuffersExceptCurrentLocked called but mQueue is not empty");
- int head = -1;
- if (!mQueue.empty()) {
- Fifo::iterator front(mQueue.begin());
- head = *front;
- }
- mCurrentTexture = INVALID_BUFFER_SLOT;
- for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
- if (i != head) {
- freeBufferLocked(i);
- }
- }
-}
-
-status_t SurfaceTexture::drainQueueLocked() {
- while (mSynchronousMode && !mQueue.isEmpty()) {
- mDequeueCondition.wait(mMutex);
- if (mAbandoned) {
- ST_LOGE("drainQueueLocked: SurfaceTexture has been abandoned!");
- return NO_INIT;
- }
- if (mConnectedApi == NO_CONNECTED_API) {
- ST_LOGE("drainQueueLocked: SurfaceTexture is not connected!");
- return NO_INIT;
- }
- }
- return NO_ERROR;
-}
-
-status_t SurfaceTexture::drainQueueAndFreeBuffersLocked() {
- status_t err = drainQueueLocked();
- if (err == NO_ERROR) {
- if (mSynchronousMode) {
- freeAllBuffersLocked();
- } else {
- freeAllBuffersExceptHeadLocked();
- }
- }
- return err;
-}
-
EGLImageKHR SurfaceTexture::createImage(EGLDisplay dpy,
const sp<GraphicBuffer>& graphicBuffer) {
EGLClientBuffer cbuf = (EGLClientBuffer)graphicBuffer->getNativeBuffer();