1 files changed, 7 insertions, 0 deletions
diff --git a/src/Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/SwizzleAdd.glsl b/src/Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/SwizzleAdd.glsl
new file mode 100644
index 00000000..057cb6ca
--- /dev/null
+++ b/src/Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/SwizzleAdd.glsl
@@ -0,0 +1,7 @@
+float Helper_SwizzleAdd(float x, float y, int mask)
+{
+    vec4 xLut = vec4(1.0, -1.0, 1.0, 0.0);
+    vec4 yLut = vec4(1.0, 1.0, -1.0, 1.0);
+    int lutIdx = (mask >> (int($SUBGROUP_INVOCATION$ & 3u) * 2)) & 3;
+    return x * xLut[lutIdx] + y * yLut[lutIdx];
+}
+\ No newline at end of file