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jinx/Ryujinx.HLE/HOS/Services/SurfaceFlinger/BufferQueueProducer.cs

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using Ryujinx.Common.Logging;
using Ryujinx.Cpu;
using Ryujinx.HLE.HOS.Kernel.Threading;
using Ryujinx.HLE.HOS.Services.Settings;
using Ryujinx.HLE.HOS.Services.SurfaceFlinger.Types;
using Ryujinx.HLE.HOS.Services.Time.Clock;
using System;
using System.Threading;
namespace Ryujinx.HLE.HOS.Services.SurfaceFlinger
{
class BufferQueueProducer : IGraphicBufferProducer
{
public BufferQueueCore Core { get; }
private readonly ITickSource _tickSource;
private uint _stickyTransform;
private uint _nextCallbackTicket;
private uint _currentCallbackTicket;
private uint _callbackTicket;
private readonly object _callbackLock = new object();
public BufferQueueProducer(BufferQueueCore core, ITickSource tickSource)
{
Core = core;
_tickSource = tickSource;
_stickyTransform = 0;
_callbackTicket = 0;
_nextCallbackTicket = 0;
_currentCallbackTicket = 0;
}
public override Status RequestBuffer(int slot, out AndroidStrongPointer<GraphicBuffer> graphicBuffer)
{
graphicBuffer = new AndroidStrongPointer<GraphicBuffer>();
lock (Core.Lock)
{
if (Core.IsAbandoned)
{
return Status.NoInit;
}
if (slot < 0 || slot >= Core.Slots.Length || !Core.IsOwnedByProducerLocked(slot))
{
return Status.BadValue;
}
graphicBuffer.Set(Core.Slots[slot].GraphicBuffer);
Core.Slots[slot].RequestBufferCalled = true;
return Status.Success;
}
}
public override Status SetBufferCount(int bufferCount)
{
IConsumerListener listener = null;
lock (Core.Lock)
{
if (Core.IsAbandoned)
{
return Status.NoInit;
}
if (bufferCount > BufferSlotArray.NumBufferSlots)
{
return Status.BadValue;
}
for (int slot = 0; slot < Core.Slots.Length; slot++)
{
if (Core.Slots[slot].BufferState == BufferState.Dequeued)
{
return Status.BadValue;
}
}
if (bufferCount == 0)
{
Core.OverrideMaxBufferCount = 0;
Core.SignalDequeueEvent();
return Status.Success;
}
int minBufferSlots = Core.GetMinMaxBufferCountLocked(false);
if (bufferCount < minBufferSlots)
{
return Status.BadValue;
}
int preallocatedBufferCount = GetPreallocatedBufferCountLocked();
if (preallocatedBufferCount <= 0)
{
Core.Queue.Clear();
Core.FreeAllBuffersLocked();
}
else if (preallocatedBufferCount < bufferCount)
{
Logger.Error?.Print(LogClass.SurfaceFlinger, "Not enough buffers. Try with more pre-allocated buffers");
return Status.Success;
}
Core.OverrideMaxBufferCount = bufferCount;
Core.SignalDequeueEvent();
Core.SignalWaitBufferFreeEvent();
listener = Core.ConsumerListener;
}
listener?.OnBuffersReleased();
return Status.Success;
}
public override Status DequeueBuffer(out int slot,
out AndroidFence fence,
bool async,
uint width,
uint height,
PixelFormat format,
uint usage)
{
if ((width == 0 && height != 0) || (height == 0 && width != 0))
{
slot = BufferSlotArray.InvalidBufferSlot;
fence = AndroidFence.NoFence;
return Status.BadValue;
}
Status returnFlags = Status.Success;
bool attachedByConsumer = false;
lock (Core.Lock)
{
if (format == PixelFormat.Unknown)
{
format = Core.DefaultBufferFormat;
}
usage |= Core.ConsumerUsageBits;
Status status = WaitForFreeSlotThenRelock(async, out slot, out returnFlags);
if (status != Status.Success)
{
slot = BufferSlotArray.InvalidBufferSlot;
fence = AndroidFence.NoFence;
return status;
}
if (slot == BufferSlotArray.InvalidBufferSlot)
{
fence = AndroidFence.NoFence;
Logger.Error?.Print(LogClass.SurfaceFlinger, "No available buffer slots");
return Status.Busy;
}
attachedByConsumer = Core.Slots[slot].AttachedByConsumer;
if (width == 0 || height == 0)
{
width = (uint)Core.DefaultWidth;
height = (uint)Core.DefaultHeight;
}
GraphicBuffer graphicBuffer = Core.Slots[slot].GraphicBuffer.Object;
if (Core.Slots[slot].GraphicBuffer.IsNull
|| graphicBuffer.Width != width
|| graphicBuffer.Height != height
|| graphicBuffer.Format != format
|| (graphicBuffer.Usage & usage) != usage)
{
if (!Core.Slots[slot].IsPreallocated)
{
slot = BufferSlotArray.InvalidBufferSlot;
fence = AndroidFence.NoFence;
return Status.NoMemory;
}
else
{
Logger.Error?.Print(LogClass.SurfaceFlinger,
$"Preallocated buffer mismatch - slot {slot}\n" +
$"available: Width = {graphicBuffer.Width} Height = {graphicBuffer.Height} Format = {graphicBuffer.Format} Usage = {graphicBuffer.Usage:x} " +
$"requested: Width = {width} Height = {height} Format = {format} Usage = {usage:x}");
slot = BufferSlotArray.InvalidBufferSlot;
fence = AndroidFence.NoFence;
return Status.NoInit;
}
}
Core.Slots[slot].BufferState = BufferState.Dequeued;
Core.UpdateMaxBufferCountCachedLocked(slot);
fence = Core.Slots[slot].Fence;
Core.Slots[slot].Fence = AndroidFence.NoFence;
Core.Slots[slot].QueueTime = TimeSpanType.Zero;
Core.Slots[slot].PresentationTime = TimeSpanType.Zero;
Core.CheckSystemEventsLocked(Core.GetMaxBufferCountLocked(async));
}
if (attachedByConsumer)
{
returnFlags |= Status.BufferNeedsReallocation;
}
return returnFlags;
}
public override Status DetachBuffer(int slot)
{
lock (Core.Lock)
{
if (Core.IsAbandoned)
{
return Status.NoInit;
}
if (slot < 0 || slot >= Core.Slots.Length || !Core.IsOwnedByProducerLocked(slot))
{
return Status.BadValue;
}
if (!Core.Slots[slot].RequestBufferCalled)
{
Logger.Error?.Print(LogClass.SurfaceFlinger, $"Slot {slot} was detached without requesting a buffer");
return Status.BadValue;
}
Core.FreeBufferLocked(slot);
Core.SignalDequeueEvent();
return Status.Success;
}
}
public override Status DetachNextBuffer(out AndroidStrongPointer<GraphicBuffer> graphicBuffer, out AndroidFence fence)
{
lock (Core.Lock)
{
Core.WaitWhileAllocatingLocked();
if (Core.IsAbandoned)
{
graphicBuffer = default;
fence = AndroidFence.NoFence;
return Status.NoInit;
}
int nextBufferSlot = BufferSlotArray.InvalidBufferSlot;
for (int slot = 0; slot < Core.Slots.Length; slot++)
{
if (Core.Slots[slot].BufferState == BufferState.Free && !Core.Slots[slot].GraphicBuffer.IsNull)
{
if (nextBufferSlot == BufferSlotArray.InvalidBufferSlot || Core.Slots[slot].FrameNumber < Core.Slots[nextBufferSlot].FrameNumber)
{
nextBufferSlot = slot;
}
}
}
if (nextBufferSlot == BufferSlotArray.InvalidBufferSlot)
{
graphicBuffer = default;
fence = AndroidFence.NoFence;
return Status.NoMemory;
}
graphicBuffer = Core.Slots[nextBufferSlot].GraphicBuffer;
fence = Core.Slots[nextBufferSlot].Fence;
Core.FreeBufferLocked(nextBufferSlot);
return Status.Success;
}
}
public override Status AttachBuffer(out int slot, AndroidStrongPointer<GraphicBuffer> graphicBuffer)
{
lock (Core.Lock)
{
Core.WaitWhileAllocatingLocked();
Status status = WaitForFreeSlotThenRelock(false, out slot, out Status returnFlags);
if (status != Status.Success)
{
return status;
}
if (slot == BufferSlotArray.InvalidBufferSlot)
{
Logger.Error?.Print(LogClass.SurfaceFlinger, "No available buffer slots");
return Status.Busy;
}
Core.UpdateMaxBufferCountCachedLocked(slot);
Core.Slots[slot].GraphicBuffer.Set(graphicBuffer);
Core.Slots[slot].BufferState = BufferState.Dequeued;
Core.Slots[slot].Fence = AndroidFence.NoFence;
Core.Slots[slot].RequestBufferCalled = true;
return returnFlags;
}
}
public override Status QueueBuffer(int slot, ref QueueBufferInput input, out QueueBufferOutput output)
{
output = default;
switch (input.ScalingMode)
{
case NativeWindowScalingMode.Freeze:
case NativeWindowScalingMode.ScaleToWindow:
case NativeWindowScalingMode.ScaleCrop:
case NativeWindowScalingMode.Unknown:
case NativeWindowScalingMode.NoScaleCrop:
break;
default:
return Status.BadValue;
}
BufferItem item = new BufferItem();
IConsumerListener frameAvailableListener = null;
IConsumerListener frameReplaceListener = null;
lock (Core.Lock)
{
if (Core.IsAbandoned)
{
return Status.NoInit;
}
int maxBufferCount = Core.GetMaxBufferCountLocked(input.Async != 0);
if (input.Async != 0 && Core.OverrideMaxBufferCount != 0 && Core.OverrideMaxBufferCount < maxBufferCount)
{
return Status.BadValue;
}
if (slot < 0 || slot >= Core.Slots.Length || !Core.IsOwnedByProducerLocked(slot))
{
return Status.BadValue;
}
if (!Core.Slots[slot].RequestBufferCalled)
{
Logger.Error?.Print(LogClass.SurfaceFlinger, $"Slot {slot} was queued without requesting a buffer");
return Status.BadValue;
}
input.Crop.Intersect(Core.Slots[slot].GraphicBuffer.Object.ToRect(), out Rect croppedRect);
if (croppedRect != input.Crop)
{
return Status.BadValue;
}
Core.Slots[slot].Fence = input.Fence;
Core.Slots[slot].BufferState = BufferState.Queued;
Core.FrameCounter++;
Core.Slots[slot].FrameNumber = Core.FrameCounter;
Core.Slots[slot].QueueTime = TimeSpanType.FromTimeSpan(_tickSource.ElapsedTime);
Core.Slots[slot].PresentationTime = TimeSpanType.Zero;
item.AcquireCalled = Core.Slots[slot].AcquireCalled;
item.Crop = input.Crop;
item.Transform = input.Transform;
item.TransformToDisplayInverse = (input.Transform & NativeWindowTransform.InverseDisplay) == NativeWindowTransform.InverseDisplay;
item.ScalingMode = input.ScalingMode;
item.Timestamp = input.Timestamp;
item.IsAutoTimestamp = input.IsAutoTimestamp != 0;
item.SwapInterval = input.SwapInterval;
item.FrameNumber = Core.FrameCounter;
item.Slot = slot;
item.Fence = input.Fence;
item.IsDroppable = Core.DequeueBufferCannotBlock || input.Async != 0;
item.GraphicBuffer.Set(Core.Slots[slot].GraphicBuffer);
item.GraphicBuffer.Object.IncrementNvMapHandleRefCount(Core.Owner);
Core.BufferHistoryPosition = (Core.BufferHistoryPosition + 1) % BufferQueueCore.BufferHistoryArraySize;
Core.BufferHistory[Core.BufferHistoryPosition] = new BufferInfo
{
FrameNumber = Core.FrameCounter,
QueueTime = Core.Slots[slot].QueueTime,
State = BufferState.Queued
};
_stickyTransform = input.StickyTransform;
if (Core.Queue.Count == 0)
{
Core.Queue.Add(item);
frameAvailableListener = Core.ConsumerListener;
}
else
{
BufferItem frontItem = Core.Queue[0];
if (frontItem.IsDroppable)
{
if (Core.StillTracking(ref frontItem))
{
Core.Slots[slot].BufferState = BufferState.Free;
Core.Slots[slot].FrameNumber = 0;
}
Core.Queue.RemoveAt(0);
Core.Queue.Insert(0, item);
frameReplaceListener = Core.ConsumerListener;
}
else
{
Core.Queue.Add(item);
frameAvailableListener = Core.ConsumerListener;
}
}
Core.BufferHasBeenQueued = true;
Core.SignalDequeueEvent();
Core.CheckSystemEventsLocked(maxBufferCount);
output = new QueueBufferOutput
{
Width = (uint)Core.DefaultWidth,
Height = (uint)Core.DefaultHeight,
TransformHint = Core.TransformHint,
NumPendingBuffers = (uint)Core.Queue.Count
};
if ((input.StickyTransform & 8) != 0)
{
output.TransformHint |= NativeWindowTransform.ReturnFrameNumber;
output.FrameNumber = Core.Slots[slot].FrameNumber;
}
_callbackTicket = _nextCallbackTicket++;
}
lock (_callbackLock)
{
while (_callbackTicket != _currentCallbackTicket)
{
Monitor.Wait(_callbackLock);
}
frameAvailableListener?.OnFrameAvailable(ref item);
frameReplaceListener?.OnFrameReplaced(ref item);
_currentCallbackTicket++;
Monitor.PulseAll(_callbackLock);
}
Core.SignalQueueEvent();
return Status.Success;
}
public override void CancelBuffer(int slot, ref AndroidFence fence)
{
lock (Core.Lock)
{
if (Core.IsAbandoned || slot < 0 || slot >= Core.Slots.Length || !Core.IsOwnedByProducerLocked(slot))
{
return;
}
Core.Slots[slot].BufferState = BufferState.Free;
Core.Slots[slot].FrameNumber = 0;
Core.Slots[slot].Fence = fence;
Core.SignalDequeueEvent();
Core.SignalWaitBufferFreeEvent();
}
}
public override Status Query(NativeWindowAttribute what, out int outValue)
{
lock (Core.Lock)
{
if (Core.IsAbandoned)
{
outValue = 0;
return Status.NoInit;
}
switch (what)
{
case NativeWindowAttribute.Width:
outValue = Core.DefaultWidth;
return Status.Success;
case NativeWindowAttribute.Height:
outValue = Core.DefaultHeight;
return Status.Success;
case NativeWindowAttribute.Format:
outValue = (int)Core.DefaultBufferFormat;
return Status.Success;
case NativeWindowAttribute.MinUnqueuedBuffers:
outValue = Core.GetMinUndequeuedBufferCountLocked(false);
return Status.Success;
case NativeWindowAttribute.ConsumerRunningBehind:
outValue = Core.Queue.Count > 1 ? 1 : 0;
return Status.Success;
case NativeWindowAttribute.ConsumerUsageBits:
outValue = (int)Core.ConsumerUsageBits;
return Status.Success;
case NativeWindowAttribute.MaxBufferCountAsync:
outValue = Core.GetMaxBufferCountLocked(true);
return Status.Success;
default:
outValue = 0;
return Status.BadValue;
}
}
}
public override Status Connect(IProducerListener listener, NativeWindowApi api, bool producerControlledByApp, out QueueBufferOutput output)
{
output = new QueueBufferOutput();
lock (Core.Lock)
{
if (Core.IsAbandoned || Core.ConsumerListener == null)
{
return Status.NoInit;
}
if (Core.ConnectedApi != NativeWindowApi.NoApi)
{
return Status.BadValue;
}
Core.BufferHasBeenQueued = false;
Core.DequeueBufferCannotBlock = Core.ConsumerControlledByApp && producerControlledByApp;
switch (api)
{
case NativeWindowApi.NVN:
case NativeWindowApi.CPU:
case NativeWindowApi.Media:
case NativeWindowApi.Camera:
Core.ProducerListener = listener;
Core.ConnectedApi = api;
output.Width = (uint)Core.DefaultWidth;
output.Height = (uint)Core.DefaultHeight;
output.TransformHint = Core.TransformHint;
output.NumPendingBuffers = (uint)Core.Queue.Count;
if (NxSettings.Settings.TryGetValue("nv!nvn_no_vsync_capability", out object noVSyncCapability) && (bool)noVSyncCapability)
{
output.TransformHint |= NativeWindowTransform.NoVSyncCapability;
}
return Status.Success;
default:
return Status.BadValue;
}
}
}
public override Status Disconnect(NativeWindowApi api)
{
IProducerListener producerListener = null;
Status status = Status.BadValue;
lock (Core.Lock)
{
Core.WaitWhileAllocatingLocked();
if (Core.IsAbandoned)
{
return Status.Success;
}
switch (api)
{
case NativeWindowApi.NVN:
case NativeWindowApi.CPU:
case NativeWindowApi.Media:
case NativeWindowApi.Camera:
if (Core.ConnectedApi == api)
{
Core.Queue.Clear();
Core.FreeAllBuffersLocked();
Core.SignalDequeueEvent();
producerListener = Core.ProducerListener;
Core.ProducerListener = null;
Core.ConnectedApi = NativeWindowApi.NoApi;
Core.SignalWaitBufferFreeEvent();
Core.SignalFrameAvailableEvent();
status = Status.Success;
}
break;
}
}
producerListener?.OnBufferReleased();
return status;
}
private int GetPreallocatedBufferCountLocked()
{
int bufferCount = 0;
for (int i = 0; i < Core.Slots.Length; i++)
{
if (Core.Slots[i].IsPreallocated)
{
bufferCount++;
}
}
return bufferCount;
}
public override Status SetPreallocatedBuffer(int slot, AndroidStrongPointer<GraphicBuffer> graphicBuffer)
{
if (slot < 0 || slot >= Core.Slots.Length)
{
return Status.BadValue;
}
lock (Core.Lock)
{
Core.Slots[slot].BufferState = BufferState.Free;
Core.Slots[slot].Fence = AndroidFence.NoFence;
Core.Slots[slot].RequestBufferCalled = false;
Core.Slots[slot].AcquireCalled = false;
Core.Slots[slot].NeedsCleanupOnRelease = false;
Core.Slots[slot].IsPreallocated = !graphicBuffer.IsNull;
Core.Slots[slot].FrameNumber = 0;
Core.Slots[slot].GraphicBuffer.Set(graphicBuffer);
if (!Core.Slots[slot].GraphicBuffer.IsNull)
{
Core.Slots[slot].GraphicBuffer.Object.Buffer.Usage &= (int)Core.ConsumerUsageBits;
}
Core.OverrideMaxBufferCount = GetPreallocatedBufferCountLocked();
Core.UseAsyncBuffer = false;
if (!graphicBuffer.IsNull)
{
// NOTE: Nintendo set the default width, height and format from the GraphicBuffer..
// This is entirely wrong and should only be controlled by the consumer...
Core.DefaultWidth = graphicBuffer.Object.Width;
Core.DefaultHeight = graphicBuffer.Object.Height;
Core.DefaultBufferFormat = graphicBuffer.Object.Format;
}
else
{
bool allBufferFreed = true;
for (int i = 0; i < Core.Slots.Length; i++)
{
if (!Core.Slots[i].GraphicBuffer.IsNull)
{
allBufferFreed = false;
break;
}
}
if (allBufferFreed)
{
Core.Queue.Clear();
Core.FreeAllBuffersLocked();
Core.SignalDequeueEvent();
Core.SignalWaitBufferFreeEvent();
Core.SignalFrameAvailableEvent();
return Status.Success;
}
}
Core.SignalDequeueEvent();
Core.SignalWaitBufferFreeEvent();
return Status.Success;
}
}
private Status WaitForFreeSlotThenRelock(bool async, out int freeSlot, out Status returnStatus)
{
bool tryAgain = true;
freeSlot = BufferSlotArray.InvalidBufferSlot;
returnStatus = Status.Success;
while (tryAgain)
{
if (Core.IsAbandoned)
{
freeSlot = BufferSlotArray.InvalidBufferSlot;
return Status.NoInit;
}
int maxBufferCount = Core.GetMaxBufferCountLocked(async);
if (async && Core.OverrideMaxBufferCount != 0 && Core.OverrideMaxBufferCount < maxBufferCount)
{
freeSlot = BufferSlotArray.InvalidBufferSlot;
return Status.BadValue;
}
if (maxBufferCount < Core.MaxBufferCountCached)
{
for (int slot = maxBufferCount; slot < Core.MaxBufferCountCached; slot++)
{
if (Core.Slots[slot].BufferState == BufferState.Free && !Core.Slots[slot].GraphicBuffer.IsNull && !Core.Slots[slot].IsPreallocated)
{
Core.FreeBufferLocked(slot);
returnStatus |= Status.ReleaseAllBuffers;
}
}
}
freeSlot = BufferSlotArray.InvalidBufferSlot;
int dequeuedCount = 0;
int acquiredCount = 0;
for (int slot = 0; slot < maxBufferCount; slot++)
{
switch (Core.Slots[slot].BufferState)
{
case BufferState.Acquired:
acquiredCount++;
break;
case BufferState.Dequeued:
dequeuedCount++;
break;
case BufferState.Free:
if (freeSlot == BufferSlotArray.InvalidBufferSlot || Core.Slots[slot].FrameNumber < Core.Slots[freeSlot].FrameNumber)
{
freeSlot = slot;
}
break;
default:
break;
}
}
// The producer SHOULD call SetBufferCount otherwise it's not allowed to dequeue multiple buffers.
if (Core.OverrideMaxBufferCount == 0 && dequeuedCount > 0)
{
return Status.InvalidOperation;
}
if (Core.BufferHasBeenQueued)
{
int newUndequeuedCount = maxBufferCount - (dequeuedCount + 1);
int minUndequeuedCount = Core.GetMinUndequeuedBufferCountLocked(async);
if (newUndequeuedCount < minUndequeuedCount)
{
Logger.Error?.Print(LogClass.SurfaceFlinger, $"Min undequeued buffer count ({minUndequeuedCount}) exceeded (dequeued = {dequeuedCount} undequeued = {newUndequeuedCount})");
return Status.InvalidOperation;
}
}
bool tooManyBuffers = Core.Queue.Count > maxBufferCount;
tryAgain = freeSlot == BufferSlotArray.InvalidBufferSlot || tooManyBuffers;
if (tryAgain)
{
if (async || (Core.DequeueBufferCannotBlock && acquiredCount < Core.MaxAcquiredBufferCount))
{
Core.CheckSystemEventsLocked(maxBufferCount);
return Status.WouldBlock;
}
Core.WaitDequeueEvent();
if (!Core.Active)
{
break;
}
}
}
return Status.Success;
}
protected override KReadableEvent GetWaitBufferFreeEvent()
{
return Core.GetWaitBufferFreeEvent();
}
public override Status GetBufferHistory(int bufferHistoryCount, out Span<BufferInfo> bufferInfos)
{
if (bufferHistoryCount <= 0)
{
bufferInfos = Span<BufferInfo>.Empty;
return Status.BadValue;
}
lock (Core.Lock)
{
bufferHistoryCount = Math.Min(bufferHistoryCount, Core.BufferHistory.Length);
BufferInfo[] result = new BufferInfo[bufferHistoryCount];
uint position = Core.BufferHistoryPosition;
for (uint i = 0; i < bufferHistoryCount; i++)
{
result[i] = Core.BufferHistory[(position - i) % Core.BufferHistory.Length];
position--;
}
bufferInfos = result;
return Status.Success;
}
}
}
}