1 files changed, 71 insertions, 0 deletions
diff --git a/Ryujinx.Graphics.Nvdec.Vp9/Constants.cs b/Ryujinx.Graphics.Nvdec.Vp9/Constants.cs
new file mode 100644
index 00000000..407e6f42
--- /dev/null
+++ b/Ryujinx.Graphics.Nvdec.Vp9/Constants.cs
@@ -0,0 +1,71 @@
+using Ryujinx.Graphics.Nvdec.Vp9.Types;
+
+namespace Ryujinx.Graphics.Nvdec.Vp9
+{
+    internal static class Constants
+    {
+        public const int Vp9InterpExtend = 4;
+
+        public const int MaxMbPlane = 3;
+
+        public const int None = -1;
+        public const int IntraFrame = 0;
+        public const int LastFrame = 1;
+        public const int GoldenFrame = 2;
+        public const int AltRefFrame = 3;
+        public const int MaxRefFrames = 4;
+
+        public const int MiSizeLog2 = 3;
+        public const int MiBlockSizeLog2 = 6 - MiSizeLog2;  // 64 = 2^6
+
+        public const int MiSize = 1 << MiSizeLog2;              // pixels per mi-unit
+        public const int MiBlockSize = 1 << MiBlockSizeLog2;  // mi-units per max block
+        public const int MiMask = MiBlockSize - 1;
+
+        public const int PartitionPloffset = 4;  // number of probability models per block size
+
+        /* Segment Feature Masks */
+        public const int MaxMvRefCandidates = 2;
+
+        public const int CompInterContexts = 5;
+        public const int RefContexts = 5;
+
+        public const int EightTap = 0;
+        public const int EightTapSmooth = 1;
+        public const int EightTapSharp = 2;
+        public const int SwitchableFilters = 3; /* Number of switchable filters */
+        public const int Bilinear = 3;
+        public const int Switchable = 4; /* should be the last one */
+
+        // Frame
+        public const int RefsPerFrame = 3;
+
+        public const int NumPingPongBuffers = 2;
+
+        public const int Class0Bits = 1; /* bits at integer precision for class 0 */
+        public const int Class0Size = 1 << Class0Bits;
+
+        public const int MvInUseBits = 14;
+        public const int MvUpp = (1 << MvInUseBits) - 1;
+        public const int MvLow = -(1 << MvInUseBits);
+
+        // Coefficient token alphabet
+        public const int ZeroToken = 0;        // 0     Extra Bits 0+0
+        public const int OneToken = 1;         // 1     Extra Bits 0+1
+        public const int TwoToken = 2;         // 2     Extra Bits 0+1
+
+        public const int PivotNode = 2;
+
+        public const int Cat1MinVal = 5;
+        public const int Cat2MinVal = 7;
+        public const int Cat3MinVal = 11;
+        public const int Cat4MinVal = 19;
+        public const int Cat5MinVal = 35;
+        public const int Cat6MinVal = 67;
+
+        public const int EobModelToken = 3;
+
+        public const int SegmentAbsData = 1;
+        public const int MaxSegments = 8;
+    }
+}