From be8b61218644941321c7caf3359a2b7c68791b20 Mon Sep 17 00:00:00 2001
From: Matt Borgerson <contact@mborgerson.com>
Date: Sat, 25 Jun 2022 14:14:08 -0700
Subject: [PATCH] nv2a: Set C numeric locale before shader gen

---
 hw/xbox/nv2a/shaders.c | 16 +++++++++++++++-
 hw/xbox/nv2a/shaders.h |  2 +-
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/hw/xbox/nv2a/shaders.c b/hw/xbox/nv2a/shaders.c
index 451eed728c..181b7e94b1 100644
--- a/hw/xbox/nv2a/shaders.c
+++ b/hw/xbox/nv2a/shaders.c
@@ -21,6 +21,7 @@
 
 #include "qemu/osdep.h"
 #include "qemu-common.h"
+#include <locale.h>
 
 #include "shaders_common.h"
 #include "shaders.h"
@@ -941,11 +942,19 @@ static GLuint create_gl_shader(GLenum gl_shader_type,
     return shader;
 }
 
-ShaderBinding* generate_shaders(const ShaderState *state)
+ShaderBinding *generate_shaders(const ShaderState *state)
 {
     int i, j;
     char tmp[64];
 
+    char *previous_numeric_locale = setlocale(LC_NUMERIC, NULL);
+    if (previous_numeric_locale) {
+        previous_numeric_locale = g_strdup(previous_numeric_locale);
+    }
+
+    /* Ensure numeric values are printed with '.' radix, no grouping */
+    setlocale(LC_NUMERIC, "C");
+
     char vtx_prefix;
     GLuint program = glCreateProgram();
 
@@ -1092,5 +1101,10 @@ ShaderBinding* generate_shaders(const ShaderState *state)
         ret->material_alpha_loc = -1;
     }
 
+    if (previous_numeric_locale) {
+        setlocale(LC_NUMERIC, previous_numeric_locale);
+        g_free(previous_numeric_locale);
+    }
+
     return ret;
 }
diff --git a/hw/xbox/nv2a/shaders.h b/hw/xbox/nv2a/shaders.h
index 79d7db18f1..9f90d82762 100644
--- a/hw/xbox/nv2a/shaders.h
+++ b/hw/xbox/nv2a/shaders.h
@@ -134,6 +134,6 @@ typedef struct ShaderBinding {
     GLint material_alpha_loc;
 } ShaderBinding;
 
-ShaderBinding* generate_shaders(const ShaderState *state);
+ShaderBinding *generate_shaders(const ShaderState *state);
 
 #endif