From 948f6c07383b7ab84074f3d84a3114a93f77bcd6 Mon Sep 17 00:00:00 2001
From: bunnei <bunneidev@gmail.com>
Date: Wed, 5 Sep 2018 21:45:38 -0400
Subject: [PATCH] gl_shader_decompiler: Implement saturate mode for IPA.

---
 src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
index 781ddb073..841647ebe 100644
--- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
@@ -2197,11 +2197,15 @@ private:
             case OpCode::Id::IPA: {
                 const auto& attribute = instr.attribute.fmt28;
                 const auto& reg = instr.gpr0;
-                ASSERT_MSG(instr.ipa.saturate == 0, "IPA saturate not implemented");
+
                 Tegra::Shader::IpaMode input_mode{instr.ipa.interp_mode.Value(),
                                                   instr.ipa.sample_mode.Value()};
                 regs.SetRegisterToInputAttibute(reg, attribute.element, attribute.index,
                                                 input_mode);
+
+                if (instr.ipa.saturate) {
+                    regs.SetRegisterToFloat(reg, 0, regs.GetRegisterAsFloat(reg), 1, 1, true);
+                }
                 break;
             }
             case OpCode::Id::SSY: {