From b8dfe1348a66689f36329bcba77da1b1c0537e57 Mon Sep 17 00:00:00 2001
From: Hai Nguyen <codingforlove@gmail.com>
Date: Tue, 30 Nov 2021 04:55:25 -0500
Subject: [PATCH] Vulkan rules relaxed for glslang C interface

- Added vulkan_rules_relaxed flag to glslang_input_t to turn on Vulkan
  rules relaxed during shader creation.
---
 glslang/CInterface/glslang_c_interface.cpp | 4 ++++
 glslang/Include/glslang_c_interface.h      | 1 +
 2 files changed, 5 insertions(+)

diff --git a/glslang/CInterface/glslang_c_interface.cpp b/glslang/CInterface/glslang_c_interface.cpp
index 43bb7896..b7d34dcc 100644
--- a/glslang/CInterface/glslang_c_interface.cpp
+++ b/glslang/CInterface/glslang_c_interface.cpp
@@ -343,6 +343,10 @@ GLSLANG_EXPORT glslang_shader_t* glslang_shader_create(const glslang_input_t* in
     shader->shader->setEnvTarget(c_shader_target_language(input->target_language),
                                  c_shader_target_language_version(input->target_language_version));
 
+    if (input->vulkan_rules_relaxed) {
+        shader->shader->setEnvInputVulkanRulesRelaxed();
+    }
+
     return shader;
 }
 
diff --git a/glslang/Include/glslang_c_interface.h b/glslang/Include/glslang_c_interface.h
index 14ab6acb..11315969 100644
--- a/glslang/Include/glslang_c_interface.h
+++ b/glslang/Include/glslang_c_interface.h
@@ -166,6 +166,7 @@ typedef struct glslang_input_s {
     glslang_profile_t default_profile;
     int force_default_version_and_profile;
     int forward_compatible;
+    int vulkan_rules_relaxed;
     glslang_messages_t messages;
     const glslang_resource_t* resource;
 } glslang_input_t;