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hle: service: nvflinger: buffer_queue_producer: Cleanup & add GetReleasedBuffers.

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This commit is contained in:
bunnei 2022-04-01 22:58:02 -07:00
parent 7610554b1e
commit 30b07878ba
2 changed files with 38 additions and 10 deletions
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44
src/core/hle/service/nvflinger/buffer_queue_consumer.cpp
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@ -18,8 +18,7 @@ BufferQueueConsumer::BufferQueueConsumer(std::shared_ptr<BufferQueueCore> core_)
BufferQueueConsumer::~BufferQueueConsumer() = default;
Status BufferQueueConsumer::AcquireBuffer(BufferItem* out_buffer,
std::chrono::nanoseconds expected_present,
u64 max_frame_number) {
std::chrono::nanoseconds expected_present) {
std::scoped_lock lock(core->mutex);
// Check that the consumer doesn't currently have the maximum number of buffers acquired.
@ -50,12 +49,6 @@ Status BufferQueueConsumer::AcquireBuffer(BufferItem* out_buffer,
while (core->queue.size() > 1 && !core->queue[0].is_auto_timestamp) {
const auto& buffer_item{core->queue[1]};
// If dropping entry[0] would leave us with a buffer that the consumer is not yet ready
// for, don't drop it.
if (max_frame_number && buffer_item.frame_number > max_frame_number) {
break;
}
// If entry[1] is timely, drop entry[0] (and repeat).
const auto desired_present = buffer_item.timestamp;
if (desired_present < expected_present.count() - MAX_REASONABLE_NSEC ||
@ -200,4 +193,39 @@ Status BufferQueueConsumer::Connect(std::shared_ptr<IConsumerListener> consumer_
return Status::NoError;
}
Status BufferQueueConsumer::GetReleasedBuffers(u64* out_slot_mask) {
if (out_slot_mask == nullptr) {
LOG_ERROR(Service_NVFlinger, "out_slot_mask may not be nullptr");
return Status::BadValue;
}
std::scoped_lock lock(core->mutex);
if (core->is_abandoned) {
LOG_ERROR(Service_NVFlinger, "BufferQueue has been abandoned");
return Status::NoInit;
}
u64 mask = 0;
for (int s = 0; s < BufferQueueDefs::NUM_BUFFER_SLOTS; ++s) {
if (!slots[s].acquire_called) {
mask |= (1ULL << s);
}
}
// Remove from the mask queued buffers for which acquire has been called, since the consumer
// will not receive their buffer addresses and so must retain their cached information
auto current(core->queue.begin());
while (current != core->queue.end()) {
if (current->acquire_called) {
mask &= ~(1ULL << current->slot);
}
++current;
}
LOG_DEBUG(Service_NVFlinger, "returning mask {}", mask);
*out_slot_mask = mask;
return Status::NoError;
}
} // namespace Service::android

4
src/core/hle/service/nvflinger/buffer_queue_consumer.h
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@ -24,10 +24,10 @@ public:
explicit BufferQueueConsumer(std::shared_ptr<BufferQueueCore> core_);
~BufferQueueConsumer();
Status AcquireBuffer(BufferItem* out_buffer, std::chrono::nanoseconds expected_present,
u64 max_frame_number = 0);
Status AcquireBuffer(BufferItem* out_buffer, std::chrono::nanoseconds expected_present);
Status ReleaseBuffer(s32 slot, u64 frame_number, const Fence& release_fence);
Status Connect(std::shared_ptr<IConsumerListener> consumer_listener, bool controlled_by_app);
Status GetReleasedBuffers(u64* out_slot_mask);
private:
std::shared_ptr<BufferQueueCore> core;