New GPFifo and fast guest constant buffer updates (#1400)

* Add new structures from official docs, start migrating GPFifo

* Finish migration to new GPFifo processor

* Implement fast constant buffer data upload

* Migrate to new GPFifo class

* XML docs

1 files changed, 39 insertions, 0 deletions

diff --git a/Ryujinx.Graphics.Gpu/Engine/GPFifo/CompressedMethod.cs b/Ryujinx.Graphics.Gpu/Engine/GPFifo/CompressedMethod.cs
new file mode 100644
index 00000000..9a213489
--- /dev/null
+++ b/Ryujinx.Graphics.Gpu/Engine/GPFifo/CompressedMethod.cs
@@ -0,0 +1,39 @@
+// This file was auto-generated from NVIDIA official Maxwell definitions.
+
+namespace Ryujinx.Graphics.Gpu.Engine.GPFifo
+{
+    enum TertOp
+    {
+        Grp0IncMethod = 0,
+        Grp0SetSubDevMask = 1,
+        Grp0StoreSubDevMask = 2,
+        Grp0UseSubDevMask = 3,
+        Grp2NonIncMethod = 0
+    }
+
+    enum SecOp
+    {
+        Grp0UseTert = 0,
+        IncMethod = 1,
+        Grp2UseTert = 2,
+        NonIncMethod = 3,
+        ImmdDataMethod = 4,
+        OneInc = 5,
+        Reserved6 = 6,
+        EndPbSegment = 7
+    }
+
+    struct CompressedMethod
+    {
+        public uint Method;
+        public int MethodAddressOld => (int)((Method >> 2) & 0x7FF);
+        public int MethodAddress => (int)((Method >> 0) & 0xFFF);
+        public int SubdeviceMask => (int)((Method >> 4) & 0xFFF);
+        public int MethodSubchannel => (int)((Method >> 13) & 0x7);
+        public TertOp TertOp => (TertOp)((Method >> 16) & 0x3);
+        public int MethodCountOld => (int)((Method >> 18) & 0x7FF);
+        public int MethodCount => (int)((Method >> 16) & 0x1FFF);
+        public int ImmdData => (int)((Method >> 16) & 0x1FFF);
+        public SecOp SecOp => (SecOp)((Method >> 29) & 0x7);
+    }
+}