nvdec: Adding Vp8 codec support (#2707)

* first try

* second try

* working update

* Final impl

* Fixes nits

* Fix everything

* remove leftover

* Update FFmpegContext.cs

* Update Surface.cs

* Addresses gdkchan feedback

* bool not byte

* Addresses gdkchan feedback

1 files changed, 75 insertions, 0 deletions

diff --git a/Ryujinx.Graphics.Nvdec/Types/Vp8/PictureInfo.cs b/Ryujinx.Graphics.Nvdec/Types/Vp8/PictureInfo.cs
new file mode 100644
index 00000000..844f2103
--- /dev/null
+++ b/Ryujinx.Graphics.Nvdec/Types/Vp8/PictureInfo.cs
@@ -0,0 +1,75 @@
+using Ryujinx.Common.Memory;
+using Ryujinx.Graphics.Video;
+
+namespace Ryujinx.Graphics.Nvdec.Types.Vp8
+{
+    struct PictureInfo
+    {
+#pragma warning disable CS0649
+        public Array13<uint> Unknown0;
+        public uint GpTimerTimeoutValue;
+        public ushort FrameWidth;
+        public ushort FrameHeight;
+        public byte KeyFrame; // 1: key frame - 0: not
+        public byte Version;
+        public byte Flags0;
+        // TileFormat : 2 // 0: TBL; 1: KBL;
+        // GobHeight : 3 // Set GOB height, 0: GOB_2, 1: GOB_4, 2: GOB_8, 3: GOB_16, 4: GOB_32 (NVDEC3 onwards)
+        // ReserverdSurfaceFormat : 3
+        public byte ErrorConcealOn; // 1: error conceal on - 0: off
+        public uint FirstPartSize; // the size of first partition (frame header and mb header partition)
+        public uint HistBufferSize; // in units of 256
+        public uint VLDBufferSize; // in units of 1
+        public Array2<uint> FrameStride; // [y_c]
+        public uint LumaTopOffset; // offset of luma top field in units of 256
+        public uint LumaBotOffset; // offset of luma bottom field in units of 256
+        public uint LumaFrameOffset; // offset of luma frame in units of 256
+        public uint ChromaTopOffset; // offset of chroma top field in units of 256
+        public uint ChromaBotOffset; // offset of chroma bottom field in units of 256
+        public uint ChromaFrameOffset; // offset of chroma frame in units of 256
+        public uint Flags1;
+        // EnableTFOutput : 1; // =1, enable dbfdma to output the display surface; if disable, then the following configure on tf is useless.
+        // Remap for VC1
+        // VC1MapYFlag : 1
+        // MapYValue : 3
+        // VC1MapUVFlag : 1
+        // MapUVValue : 3
+        // TF
+        // OutStride : 8
+        // TilingFormat : 3;
+        // OutputStructure : 1 // 0:frame, 1:field
+        // Reserved0 : 11
+        public Array2<int> OutputTop; // in units of 256
+        public Array2<int> OutputBottom; // in units of 256
+        // Histogram
+        public uint Flags2;
+        // EnableHistogram : 1 // enable histogram info collection
+        // HistogramStartX : 12 // start X of Histogram window
+        // HistogramStartY : 12 // start Y of Histogram window
+        // Reserved1 : 7
+        // HistogramEndX : 12 // end X of Histogram window
+        // HistogramEndY : 12 // end y of Histogram window
+        // Reserved2 : 8
+        // Decode picture buffer related
+        public sbyte CurrentOutputMemoryLayout;
+        public Array3<sbyte> OutputMemoryLayout; // output NV12/NV24 setting. item 0:golden - 1: altref - 2: last
+        public byte SegmentationFeatureDataUpdate;
+        public Array3<byte> Reserved3;
+        public uint ResultValue; // ucode return result
+        public Array8<uint> PartitionOffset;
+        public Array3<uint> Reserved4;
+#pragma warning restore CS0649
+
+        public Vp8PictureInfo Convert()
+        {
+            return new Vp8PictureInfo()
+            {
+                KeyFrame = KeyFrame != 0,
+                FirstPartSize = FirstPartSize,
+                Version = Version,
+                FrameWidth = FrameWidth,
+                FrameHeight = FrameHeight
+            };
+        }
+    }
+}