From 9daf029f356898336de1ad0c63b6c36e261e4f9b Mon Sep 17 00:00:00 2001
From: gdkchan <gab.dark.100@gmail.com>
Date: Sat, 12 Nov 2022 20:20:40 -0300
Subject: Use vector transform feedback outputs if possible (#3832)
---
.../StructuredIr/StructuredProgramInfo.cs | 35 ++++++++++++++++++++++
1 file changed, 35 insertions(+)
(limited to 'Ryujinx.Graphics.Shader/StructuredIr/StructuredProgramInfo.cs')
diff --git a/Ryujinx.Graphics.Shader/StructuredIr/StructuredProgramInfo.cs b/Ryujinx.Graphics.Shader/StructuredIr/StructuredProgramInfo.cs
index 43bdfaba..57253148 100644
--- a/Ryujinx.Graphics.Shader/StructuredIr/StructuredProgramInfo.cs
+++ b/Ryujinx.Graphics.Shader/StructuredIr/StructuredProgramInfo.cs
@@ -42,5 +42,40 @@ namespace Ryujinx.Graphics.Shader.StructuredIr
TransformFeedbackOutputs = new TransformFeedbackOutput[0xc0];
}
+
+ public TransformFeedbackOutput GetTransformFeedbackOutput(int attr)
+ {
+ int index = attr / 4;
+ return TransformFeedbackOutputs[index];
+ }
+
+ public int GetTransformFeedbackOutputComponents(int attr)
+ {
+ int index = attr / 4;
+ int baseIndex = index & ~3;
+
+ int count = 1;
+
+ for (; count < 4; count++)
+ {
+ ref var prev = ref TransformFeedbackOutputs[baseIndex + count - 1];
+ ref var curr = ref TransformFeedbackOutputs[baseIndex + count];
+
+ int prevOffset = prev.Offset;
+ int currOffset = curr.Offset;
+
+ if (!prev.Valid || !curr.Valid || prevOffset + 4 != currOffset)
+ {
+ break;
+ }
+ }
+
+ if (baseIndex + count <= index)
+ {
+ return 1;
+ }
+
+ return count;
+ }
}
}
\ No newline at end of file
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