1  using Ryujinx.Graphics.Shader.IntermediateRepresentation;
 2  using Ryujinx.Graphics.Shader.StructuredIr;
 3  
 4  using static Ryujinx.Graphics.Shader.CodeGen.Glsl.Instructions.InstGenHelper;
 5  using static Ryujinx.Graphics.Shader.StructuredIr.InstructionInfo;
 6  
 7  namespace Ryujinx.Graphics.Shader.CodeGen.Glsl.Instructions
 8  {
 9      static class InstGenVector
10      {
11          public static string VectorExtract(CodeGenContext context, AstOperation operation)
12          {
13              IAstNode vector = operation.GetSource(0);
14              IAstNode index = operation.GetSource(1);
15  
16              string vectorExpr = GetSourceExpr(context, vector, OperandManager.GetNodeDestType(context, vector));
17  
18              if (index is AstOperand indexOperand && indexOperand.Type == OperandType.Constant)
19              {
20                  char elem = "xyzw"[indexOperand.Value];
21  
22                  return $"{vectorExpr}.{elem}";
23              }
24              else
25              {
26                  string indexExpr = GetSourceExpr(context, index, GetSrcVarType(operation.Inst, 1));
27  
28                  return $"{vectorExpr}[{indexExpr}]";
29              }
30          }
31      }
32  }