From e2076f238519ee21194c2e13e1e58948a2cb08c9 Mon Sep 17 00:00:00 2001
From: Steveice10 <1269164+Steveice10@users.noreply.github.com>
Date: Tue, 10 Jan 2023 03:23:39 -0800
Subject: [PATCH] shader: Handle out-of-bounds uniform access via address
 register. (#16)

---
 src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
index 19634babe..645d6893e 100644
--- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
@@ -333,8 +333,9 @@ private:
             return fmt::format("reg_tmp{}", index);
         case RegisterType::FloatUniform:
             if (address_register_index != 0) {
-                return fmt::format("uniforms.f[{} + address_registers.{}]", index,
-                                   "xyz"[address_register_index - 1]);
+                // TODO: Verify hardware behavior of out-of-bounds register number.
+                return fmt::format("({0} + address_registers.{1} < 96 ? uniforms.f[{0} + address_registers.{1}] : vec4(0))",
+                                   index, "xyz"[address_register_index - 1]);
             }
             return fmt::format("uniforms.f[{}]", index);
         default: