Handle UTF-8 output on Windows in openal-info

1 files changed, 65 insertions, 0 deletions

diff --git a/utils/openal-info.c b/utils/openal-info.c
index 5b45ceef..5fd8784b 100644
--- a/utils/openal-info.c
+++ b/utils/openal-info.c
@@ -24,6 +24,7 @@
 
 #include <stdio.h>
 #include <string.h>
+#include <stdlib.h>
 
 #include "AL/alc.h"
 #include "AL/al.h"
@@ -41,6 +42,70 @@
 #endif
 
 
+#ifdef _WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+static WCHAR *FromUTF8(const char *str)
+{
+    WCHAR *out = NULL;
+    int len;
+
+    if((len=MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0)) > 0)
+    {
+        out = calloc(sizeof(WCHAR), len);
+        MultiByteToWideChar(CP_UTF8, 0, str, -1, out, len);
+    }
+    return out;
+}
+
+/* Override printf, fprintf, and fwrite so we can print UTF-8 strings. */
+static void al_fprintf(FILE *file, const char *fmt, ...)
+{
+    char str[1024];
+    WCHAR *wstr;
+    va_list ap;
+
+    va_start(ap, fmt);
+    vsnprintf(str, sizeof(str), fmt, ap);
+    va_end(ap);
+
+    str[sizeof(str)-1] = 0;
+    wstr = FromUTF8(str);
+    if(!wstr)
+        fprintf(file, "<UTF-8 error> %s", str);
+    else
+        fprintf(file, "%ls", wstr);
+    free(wstr);
+}
+#define fprintf al_fprintf
+#define printf(...) al_fprintf(stdout, __VA_ARGS__)
+
+static int al_fwrite(const void *ptr, size_t size, size_t nmemb, FILE *file)
+{
+    char str[1024];
+    WCHAR *wstr;
+    size_t len;
+
+    len = size * nmemb;
+    if(len > sizeof(str)-1)
+        len = sizeof(str)-1;
+    memcpy(str, ptr, len);
+    str[len] = 0;
+
+    wstr = FromUTF8(str);
+    if(!wstr)
+        fprintf(file, "<UTF-8 error> %s", str);
+    else
+        fprintf(file, "%ls", wstr);
+    free(wstr);
+
+    return len / size;
+}
+#define fwrite al_fwrite
+#endif
+
+
 #define MAX_WIDTH  80
 
 static void printList(const char *list, char separator)