Add support for fragment shader interlock (#2768)

* Support coherent images

* Add support for fragment shader interlock

* Change to tree based match approach

* Refactor + check for branch targets and external registers

* Make detection more robust

* Use Intel fragment shader ordering if interlock is not available, use nothing if both are not available

* Remove unused field

1 files changed, 18 insertions, 1 deletions

diff --git a/Ryujinx.Graphics.Shader/Instructions/InstEmitFlowControl.cs b/Ryujinx.Graphics.Shader/Instructions/InstEmitFlowControl.cs
index fce951ba..da34c1be 100644
--- a/Ryujinx.Graphics.Shader/Instructions/InstEmitFlowControl.cs
+++ b/Ryujinx.Graphics.Shader/Instructions/InstEmitFlowControl.cs
@@ -67,7 +67,24 @@ namespace Ryujinx.Graphics.Shader.Instructions
         {
             InstCal op = context.GetOp<InstCal>();
 
-            context.Call(context.GetFunctionId(context.CurrOp.GetAbsoluteAddress()), false);
+            DecodedFunction function = context.Program.GetFunctionByAddress(context.CurrOp.GetAbsoluteAddress());
+
+            if (function.IsCompilerGenerated)
+            {
+                switch (function.Type)
+                {
+                    case FunctionType.BuiltInFSIBegin:
+                        context.FSIBegin();
+                        break;
+                    case FunctionType.BuiltInFSIEnd:
+                        context.FSIEnd();
+                        break;
+                }
+            }
+            else
+            {
+                context.Call(function.Id, false);
+            }
         }
 
         public static void Exit(EmitterContext context)