status_t GonkConsumerBase::addReleaseFenceLocked(int slot,
const sp<GraphicBuffer> graphicBuffer, const sp<Fence>& fence) {
ALOGV("addReleaseFenceLocked: slot=%d", slot);
// If consumer no longer tracks this graphicBuffer, we can safely
// drop this fence, as it will never be received by the producer.
if (!stillTracking(slot, graphicBuffer)) {
return OK;
}
if (!mSlots[slot].mFence.get()) {
mSlots[slot].mFence = fence;
} else {
sp<Fence> mergedFence = Fence::merge(
String8::format("%.28s:%d", mName.string(), slot),
mSlots[slot].mFence, fence);
if (!mergedFence.get()) {
ALOGE("failed to merge release fences");
// synchronization is broken, the best we can do is hope fences
// signal in order so the new fence will act like a union
mSlots[slot].mFence = fence;
return BAD_VALUE;
}
mSlots[slot].mFence = mergedFence;
}
return OK;
}
status_t GonkConsumerBase::releaseBufferLocked(int slot, const sp<GraphicBuffer> graphicBuffer) {
// If consumer no longer tracks this graphicBuffer (we received a new
// buffer on the same slot), the buffer producer is definitely no longer
// tracking it.
if (!stillTracking(slot, graphicBuffer)) {
return OK;
}
ALOGV("releaseBufferLocked: slot=%d/%llu",
slot, mSlots[slot].mFrameNumber);
status_t err = mConsumer->releaseBuffer(slot, mSlots[slot].mFrameNumber, mSlots[slot].mFence);
if (err == GonkBufferQueue::STALE_BUFFER_SLOT) {
freeBufferLocked(slot);
}
mSlots[slot].mFence = Fence::NO_FENCE;
return err;
}
status_t ConsumerBase::releaseBufferLocked(
int slot, const sp<GraphicBuffer> graphicBuffer,
EGLDisplay display, EGLSyncKHR eglFence) {
// If consumer no longer tracks this graphicBuffer (we received a new
// buffer on the same slot), the buffer producer is definitely no longer
// tracking it.
if (!stillTracking(slot, graphicBuffer)) {
return OK;
}
CB_LOGV("releaseBufferLocked: slot=%d/%" PRIu64,
slot, mSlots[slot].mFrameNumber);
status_t err = mConsumer->releaseBuffer(slot, mSlots[slot].mFrameNumber,
display, eglFence, mSlots[slot].mFence);
if (err == IGraphicBufferConsumer::STALE_BUFFER_SLOT) {
freeBufferLocked(slot);
}
mSlots[slot].mFence = Fence::NO_FENCE;
return err;
}
