From 95144cc39c37d370d6911446736865ddca50312d Mon Sep 17 00:00:00 2001
From: bunnei <bunneidev@gmail.com>
Date: Tue, 10 Apr 2018 21:37:49 -0400
Subject: [PATCH] gl_shader_decompiler: Implement IPA instruction.

---
 .../renderer_opengl/gl_shader_decompiler.cpp          | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
index a8f1ac5b5..045ccdb0f 100644
--- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
@@ -379,7 +379,18 @@ private:
                 offset = PROGRAM_END - 1;
                 break;
             }
+            case OpCode::Id::IPA: {
+                const auto& attribute = instr.attribute.fmt28;
 
+                if (attribute.index == Attribute::Index::Position) {
+                    LOG_CRITICAL(HW_GPU, "Unimplemented");
+                    break;
+                }
+
+                std::string dest = GetRegister(instr.gpr0);
+                SetDest(attribute.element, dest, GetInputAttribute(attribute.index), 1, 4);
+                break;
+            }
             default: {
                 LOG_CRITICAL(HW_GPU, "Unhandled instruction: 0x%02x (%s): 0x%08x",
                              static_cast<unsigned>(instr.opcode.EffectiveOpCode()),