From a3897ab3195cfb9efdc97fc21d9b7f6d9c989819 Mon Sep 17 00:00:00 2001
From: steam-test1 <34393637+steam-test1@users.noreply.github.com>
Date: Mon, 20 Jan 2025 17:43:26 +0000
Subject: [PATCH] Fixed shaders with the abs source modifier

from crashing
---
 Hlsl/HlslSimpleWriter.cs | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/Hlsl/HlslSimpleWriter.cs b/Hlsl/HlslSimpleWriter.cs
index d06eb8d..2ddb685 100644
--- a/Hlsl/HlslSimpleWriter.cs
+++ b/Hlsl/HlslSimpleWriter.cs
@@ -522,6 +522,8 @@ private string GetSourceConstantValue(D3D9Instruction instruction, int srcIndex,
                             .Take(destinationLength.Value)
                             .Select(s => constantRegister[s]).ToArray();
 
+                        string size = constant.Length == 1 ? "" : constant.Length.ToString();
+
                         switch (instruction.GetSourceModifier(srcIndex))
                         {
                             case SourceModifier.None:
@@ -532,6 +534,18 @@ private string GetSourceConstantValue(D3D9Instruction instruction, int srcIndex,
                                     constant[i] = -constant[i];
                                 }
                                 break;
+                            case SourceModifier.Abs:
+                                for (int i = 0; i < constant.Length; i++)
+                                {
+                                    return $"abs(float{size}({string.Join(", ", constant.Select(c => c.ToString(_culture)))}))";
+                                }
+                                break;
+                            case SourceModifier.AbsAndNegate:
+                                for (int i = 0; i < constant.Length; i++)
+                                {
+                                    return $"-abs(float{size}({string.Join(", ", constant.Select(c => c.ToString(_culture)))}))";
+                                }
+                                break;
                             default:
                                 throw new NotImplementedException();
                         }
@@ -540,7 +554,6 @@ private string GetSourceConstantValue(D3D9Instruction instruction, int srcIndex,
                         {
                             return constant[0].ToString(_culture);
                         }
-                        string size = constant.Length == 1 ? "" : constant.Length.ToString();
                         return $"float{size}({string.Join(", ", constant.Select(c => c.ToString(_culture)))})";
                     }
                 default: