From 4d02a2d2c0451b4de1f6de3bbce54c457cacebe2 Mon Sep 17 00:00:00 2001
From: gdkchan <gab.dark.100@gmail.com>
Date: Sun, 12 Jul 2020 00:07:01 -0300
Subject: New NVDEC and VIC implementation (#1384)

* Initial NVDEC and VIC implementation

* Update FFmpeg.AutoGen to 4.3.0

* Add nvdec dependencies for Windows

* Unify some VP9 structures

* Rename VP9 structure fields

* Improvements to Video API

* XML docs for Common.Memory

* Remove now unused or redundant overloads from MemoryAccessor

* NVDEC UV surface read/write scalar paths

* Add FIXME comments about hacky things/stuff that will need to be fixed in the future

* Cleaned up VP9 memory allocation

* Remove some debug logs

* Rename some VP9 structs

* Remove unused struct

* No need to compile Ryujinx.Graphics.Host1x with unsafe anymore

* Name AsyncWorkQueue threads to make debugging easier

* Make Vp9PictureInfo a ref struct

* LayoutConverter no longer needs the depth argument (broken by rebase)

* Pooling of VP9 buffers, plus fix a memory leak on VP9

* Really wish VS could rename projects properly...

* Address feedback

* Remove using

* Catch OperationCanceledException

* Add licensing informations

* Add THIRDPARTY.md to release too

Co-authored-by: Thog <me@thog.eu>
---
 Ryujinx.Graphics.Nvdec.Vp9/Types/Segmentation.cs | 71 ++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 Ryujinx.Graphics.Nvdec.Vp9/Types/Segmentation.cs

(limited to 'Ryujinx.Graphics.Nvdec.Vp9/Types/Segmentation.cs')

diff --git a/Ryujinx.Graphics.Nvdec.Vp9/Types/Segmentation.cs b/Ryujinx.Graphics.Nvdec.Vp9/Types/Segmentation.cs
new file mode 100644
index 00000000..53d1f2cc
--- /dev/null
+++ b/Ryujinx.Graphics.Nvdec.Vp9/Types/Segmentation.cs
@@ -0,0 +1,71 @@
+using Ryujinx.Common.Memory;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Graphics.Nvdec.Vp9.Types
+{
+    internal struct Segmentation
+    {
+        private static readonly int[] SegFeatureDataSigned = new int[] { 1, 1, 0, 0 };
+        private static readonly int[] SegFeatureDataMax = new int[] { QuantCommon.MaxQ, Vp9.LoopFilter.MaxLoopFilter, 3, 0 };
+
+        public bool Enabled;
+        public bool UpdateMap;
+        public byte UpdateData;
+        public byte AbsDelta;
+        public bool TemporalUpdate;
+
+        public Array8<Array4<short>> FeatureData;
+        public Array8<uint> FeatureMask;
+        public int AqAvOffset;
+
+        public static byte GetPredProbSegId(ref Array3<byte> segPredProbs, ref MacroBlockD xd)
+        {
+            return segPredProbs[xd.GetPredContextSegId()];
+        }
+
+        public void ClearAllSegFeatures()
+        {
+            MemoryMarshal.CreateSpan(ref FeatureData[0][0], 8 * 4).Fill(0);
+            MemoryMarshal.CreateSpan(ref FeatureMask[0], 8).Fill(0);
+            AqAvOffset = 0;
+        }
+
+        internal void EnableSegFeature(int segmentId, SegLvlFeatures featureId)
+        {
+            FeatureMask[segmentId] |= 1u << (int)featureId;
+        }
+
+        internal static int FeatureDataMax(SegLvlFeatures featureId)
+        {
+            return SegFeatureDataMax[(int)featureId];
+        }
+
+        internal static int IsSegFeatureSigned(SegLvlFeatures featureId)
+        {
+            return SegFeatureDataSigned[(int)featureId];
+        }
+
+        internal void SetSegData(int segmentId, SegLvlFeatures featureId, int segData)
+        {
+            Debug.Assert(segData <= SegFeatureDataMax[(int)featureId]);
+            if (segData < 0)
+            {
+                Debug.Assert(SegFeatureDataSigned[(int)featureId] != 0);
+                Debug.Assert(-segData <= SegFeatureDataMax[(int)featureId]);
+            }
+
+            FeatureData[segmentId][(int)featureId] = (short)segData;
+        }
+
+        internal int IsSegFeatureActive(int segmentId, SegLvlFeatures featureId)
+        {
+            return Enabled && (FeatureMask[segmentId] & (1 << (int)featureId)) != 0 ? 1 : 0;
+        }
+
+        internal short GetSegData(int segmentId, SegLvlFeatures featureId)
+        {
+            return FeatureData[segmentId][(int)featureId];
+        }
+    }
+}
-- 
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